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 * 2816 * Gets the coalesce settings for a particular netdev. Note that if user has 2817 * modified per-queue settings, this only guarantees to represent queue 0. See 2818 * __i40e_get_coalesce for more details. 2819 **/ 2820 static int i40e_get_coalesce(struct net_device *netdev, 2821 struct ethtool_coalesce *ec) 2822 { 2823 return __i40e_get_coalesce(netdev, ec, -1); 2824 } 2825 2826 /** 2827 * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue 2828 * @netdev: netdev structure 2829 * @ec: ethtool's coalesce settings 2830 * @queue: the particular queue to read 2831 * 2832 * Will read a specific queue's coalesce settings 2833 **/ 2834 static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue, 2835 struct ethtool_coalesce *ec) 2836 { 2837 return __i40e_get_coalesce(netdev, ec, queue); 2838 } 2839 2840 /** 2841 * i40e_set_itr_per_queue - set ITR values for specific queue 2842 * @vsi: the VSI to set values for 2843 * @ec: coalesce settings from ethtool 2844 * @queue: the queue to modify 2845 * 2846 * Change the ITR settings for a specific queue. 2847 **/ 2848 static void i40e_set_itr_per_queue(struct i40e_vsi *vsi, 2849 struct ethtool_coalesce *ec, 2850 int queue) 2851 { 2852 struct i40e_ring *rx_ring = vsi->rx_rings[queue]; 2853 struct i40e_ring *tx_ring = vsi->tx_rings[queue]; 2854 struct i40e_pf *pf = vsi->back; 2855 struct i40e_hw *hw = &pf->hw; 2856 struct i40e_q_vector *q_vector; 2857 u16 intrl; 2858 2859 intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit); 2860 2861 rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs); 2862 tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs); 2863 2864 if (ec->use_adaptive_rx_coalesce) 2865 rx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2866 else 2867 rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2868 2869 if (ec->use_adaptive_tx_coalesce) 2870 tx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2871 else 2872 tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2873 2874 q_vector = rx_ring->q_vector; 2875 q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting); 2876 2877 q_vector = tx_ring->q_vector; 2878 q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting); 2879 2880 /* The interrupt handler itself will take care of programming 2881 * the Tx and Rx ITR values based on the values we have entered 2882 * into the q_vector, no need to write the values now. 2883 */ 2884 2885 wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl); 2886 i40e_flush(hw); 2887 } 2888 2889 /** 2890 * __i40e_set_coalesce - set coalesce settings for particular queue 2891 * @netdev: the netdev to change 2892 * @ec: ethtool coalesce settings 2893 * @queue: the queue to change 2894 * 2895 * Sets the coalesce settings for a particular queue. 2896 **/ 2897 static int __i40e_set_coalesce(struct net_device *netdev, 2898 struct ethtool_coalesce *ec, 2899 int queue) 2900 { 2901 struct i40e_netdev_priv *np = netdev_priv(netdev); 2902 u16 intrl_reg, cur_rx_itr, cur_tx_itr; 2903 struct i40e_vsi *vsi = np->vsi; 2904 struct i40e_pf *pf = vsi->back; 2905 int i; 2906 2907 if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq) 2908 vsi->work_limit = ec->tx_max_coalesced_frames_irq; 2909 2910 if (queue < 0) { 2911 cur_rx_itr = vsi->rx_rings[0]->itr_setting; 2912 cur_tx_itr = vsi->tx_rings[0]->itr_setting; 2913 } else if (queue < vsi->num_queue_pairs) { 2914 cur_rx_itr = vsi->rx_rings[queue]->itr_setting; 2915 cur_tx_itr = vsi->tx_rings[queue]->itr_setting; 2916 } else { 2917 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n", 2918 vsi->num_queue_pairs - 1); 2919 return -EINVAL; 2920 } 2921 2922 cur_tx_itr &= ~I40E_ITR_DYNAMIC; 2923 cur_rx_itr &= ~I40E_ITR_DYNAMIC; 2924 2925 /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */ 2926 if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) { 2927 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n"); 2928 return -EINVAL; 2929 } 2930 2931 if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) { 2932 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n", 2933 INTRL_REG_TO_USEC(I40E_MAX_INTRL)); 2934 return -EINVAL; 2935 } 2936 2937 if (ec->rx_coalesce_usecs != cur_rx_itr && 2938 ec->use_adaptive_rx_coalesce) { 2939 netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n"); 2940 return -EINVAL; 2941 } 2942 2943 if (ec->rx_coalesce_usecs > I40E_MAX_ITR) { 2944 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n"); 2945 return -EINVAL; 2946 } 2947 2948 if (ec->tx_coalesce_usecs != cur_tx_itr && 2949 ec->use_adaptive_tx_coalesce) { 2950 netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n"); 2951 return -EINVAL; 2952 } 2953 2954 if (ec->tx_coalesce_usecs > I40E_MAX_ITR) { 2955 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n"); 2956 return -EINVAL; 2957 } 2958 2959 if (ec->use_adaptive_rx_coalesce && !cur_rx_itr) 2960 ec->rx_coalesce_usecs = I40E_MIN_ITR; 2961 2962 if (ec->use_adaptive_tx_coalesce && !cur_tx_itr) 2963 ec->tx_coalesce_usecs = I40E_MIN_ITR; 2964 2965 intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high); 2966 vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg); 2967 if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) { 2968 netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n", 2969 vsi->int_rate_limit); 2970 } 2971 2972 /* rx and tx usecs has per queue value. If user doesn't specify the 2973 * queue, apply to all queues. 2974 */ 2975 if (queue < 0) { 2976 for (i = 0; i < vsi->num_queue_pairs; i++) 2977 i40e_set_itr_per_queue(vsi, ec, i); 2978 } else { 2979 i40e_set_itr_per_queue(vsi, ec, queue); 2980 } 2981 2982 return 0; 2983 } 2984 2985 /** 2986 * i40e_set_coalesce - set coalesce settings for every queue on the netdev 2987 * @netdev: the netdev to change 2988 * @ec: ethtool coalesce settings 2989 * 2990 * This will set each queue to the same coalesce settings. 2991 **/ 2992 static int i40e_set_coalesce(struct net_device *netdev, 2993 struct ethtool_coalesce *ec) 2994 { 2995 return __i40e_set_coalesce(netdev, ec, -1); 2996 } 2997 2998 /** 2999 * i40e_set_per_queue_coalesce - set specific queue's coalesce settings 3000 * @netdev: the netdev to change 3001 * @ec: ethtool's coalesce settings 3002 * @queue: the queue to change 3003 * 3004 * Sets the specified queue's coalesce settings. 3005 **/ 3006 static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue, 3007 struct ethtool_coalesce *ec) 3008 { 3009 return __i40e_set_coalesce(netdev, ec, queue); 3010 } 3011 3012 /** 3013 * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type 3014 * @pf: pointer to the physical function struct 3015 * @cmd: ethtool rxnfc command 3016 * 3017 * Returns Success if the flow is supported, else Invalid Input. 3018 **/ 3019 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd) 3020 { 3021 struct i40e_hw *hw = &pf->hw; 3022 u8 flow_pctype = 0; 3023 u64 i_set = 0; 3024 3025 cmd->data = 0; 3026 3027 switch (cmd->flow_type) { 3028 case TCP_V4_FLOW: 3029 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3030 break; 3031 case UDP_V4_FLOW: 3032 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3033 break; 3034 case TCP_V6_FLOW: 3035 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3036 break; 3037 case UDP_V6_FLOW: 3038 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3039 break; 3040 case SCTP_V4_FLOW: 3041 case AH_ESP_V4_FLOW: 3042 case AH_V4_FLOW: 3043 case ESP_V4_FLOW: 3044 case IPV4_FLOW: 3045 case SCTP_V6_FLOW: 3046 case AH_ESP_V6_FLOW: 3047 case AH_V6_FLOW: 3048 case ESP_V6_FLOW: 3049 case IPV6_FLOW: 3050 /* Default is src/dest for IP, no matter the L4 hashing */ 3051 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 3052 break; 3053 default: 3054 return -EINVAL; 3055 } 3056 3057 /* Read flow based hash input set register */ 3058 if (flow_pctype) { 3059 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, 3060 flow_pctype)) | 3061 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, 3062 flow_pctype)) << 32); 3063 } 3064 3065 /* Process bits of hash input set */ 3066 if (i_set) { 3067 if (i_set & I40E_L4_SRC_MASK) 3068 cmd->data |= RXH_L4_B_0_1; 3069 if (i_set & I40E_L4_DST_MASK) 3070 cmd->data |= RXH_L4_B_2_3; 3071 3072 if (cmd->flow_type == TCP_V4_FLOW || 3073 cmd->flow_type == UDP_V4_FLOW) { 3074 if (i_set & I40E_L3_SRC_MASK) 3075 cmd->data |= RXH_IP_SRC; 3076 if (i_set & I40E_L3_DST_MASK) 3077 cmd->data |= RXH_IP_DST; 3078 } else if (cmd->flow_type == TCP_V6_FLOW || 3079 cmd->flow_type == UDP_V6_FLOW) { 3080 if (i_set & I40E_L3_V6_SRC_MASK) 3081 cmd->data |= RXH_IP_SRC; 3082 if (i_set & I40E_L3_V6_DST_MASK) 3083 cmd->data |= RXH_IP_DST; 3084 } 3085 } 3086 3087 return 0; 3088 } 3089 3090 /** 3091 * i40e_check_mask - Check whether a mask field is set 3092 * @mask: the full mask value 3093 * @field: mask of the field to check 3094 * 3095 * If the given mask is fully set, return positive value. If the mask for the 3096 * field is fully unset, return zero. Otherwise return a negative error code. 3097 **/ 3098 static int i40e_check_mask(u64 mask, u64 field) 3099 { 3100 u64 value = mask & field; 3101 3102 if (value == field) 3103 return 1; 3104 else if (!value) 3105 return 0; 3106 else 3107 return -1; 3108 } 3109 3110 /** 3111 * i40e_parse_rx_flow_user_data - Deconstruct user-defined data 3112 * @fsp: pointer to rx flow specification 3113 * @data: pointer to userdef data structure for storage 3114 * 3115 * Read the user-defined data and deconstruct the value into a structure. No 3116 * other code should read the user-defined data, so as to ensure that every 3117 * place consistently reads the value correctly. 3118 * 3119 * The user-defined field is a 64bit Big Endian format value, which we 3120 * deconstruct by reading bits or bit fields from it. Single bit flags shall 3121 * be defined starting from the highest bits, while small bit field values 3122 * shall be defined starting from the lowest bits. 3123 * 3124 * Returns 0 if the data is valid, and non-zero if the userdef data is invalid 3125 * and the filter should be rejected. The data structure will always be 3126 * modified even if FLOW_EXT is not set. 3127 * 3128 **/ 3129 static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 3130 struct i40e_rx_flow_userdef *data) 3131 { 3132 u64 value, mask; 3133 int valid; 3134 3135 /* Zero memory first so it's always consistent. */ 3136 memset(data, 0, sizeof(*data)); 3137 3138 if (!(fsp->flow_type & FLOW_EXT)) 3139 return 0; 3140 3141 value = be64_to_cpu(*((__be64 *)fsp->h_ext.data)); 3142 mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data)); 3143 3144 #define I40E_USERDEF_FLEX_WORD GENMASK_ULL(15, 0) 3145 #define I40E_USERDEF_FLEX_OFFSET GENMASK_ULL(31, 16) 3146 #define I40E_USERDEF_FLEX_FILTER GENMASK_ULL(31, 0) 3147 3148 valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER); 3149 if (valid < 0) { 3150 return -EINVAL; 3151 } else if (valid) { 3152 data->flex_word = value & I40E_USERDEF_FLEX_WORD; 3153 data->flex_offset = 3154 (value & I40E_USERDEF_FLEX_OFFSET) >> 16; 3155 data->flex_filter = true; 3156 } 3157 3158 return 0; 3159 } 3160 3161 /** 3162 * i40e_fill_rx_flow_user_data - Fill in user-defined data field 3163 * @fsp: pointer to rx_flow specification 3164 * @data: pointer to return userdef data 3165 * 3166 * Reads the userdef data structure and properly fills in the user defined 3167 * fields of the rx_flow_spec. 3168 **/ 3169 static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 3170 struct i40e_rx_flow_userdef *data) 3171 { 3172 u64 value = 0, mask = 0; 3173 3174 if (data->flex_filter) { 3175 value |= data->flex_word; 3176 value |= (u64)data->flex_offset << 16; 3177 mask |= I40E_USERDEF_FLEX_FILTER; 3178 } 3179 3180 if (value || mask) 3181 fsp->flow_type |= FLOW_EXT; 3182 3183 *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value); 3184 *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask); 3185 } 3186 3187 /** 3188 * i40e_get_ethtool_fdir_all - Populates the rule count of a command 3189 * @pf: Pointer to the physical function struct 3190 * @cmd: The command to get or set Rx flow classification rules 3191 * @rule_locs: Array of used rule locations 3192 * 3193 * This function populates both the total and actual rule count of 3194 * the ethtool flow classification command 3195 * 3196 * Returns 0 on success or -EMSGSIZE if entry not found 3197 **/ 3198 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf, 3199 struct ethtool_rxnfc *cmd, 3200 u32 *rule_locs) 3201 { 3202 struct i40e_fdir_filter *rule; 3203 struct hlist_node *node2; 3204 int cnt = 0; 3205 3206 /* report total rule count */ 3207 cmd->data = i40e_get_fd_cnt_all(pf); 3208 3209 hlist_for_each_entry_safe(rule, node2, 3210 &pf->fdir_filter_list, fdir_node) { 3211 if (cnt == cmd->rule_cnt) 3212 return -EMSGSIZE; 3213 3214 rule_locs[cnt] = rule->fd_id; 3215 cnt++; 3216 } 3217 3218 cmd->rule_cnt = cnt; 3219 3220 return 0; 3221 } 3222 3223 /** 3224 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow 3225 * @pf: Pointer to the physical function struct 3226 * @cmd: The command to get or set Rx flow classification rules 3227 * 3228 * This function looks up a filter based on the Rx flow classification 3229 * command and fills the flow spec info for it if found 3230 * 3231 * Returns 0 on success or -EINVAL if filter not found 3232 **/ 3233 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf, 3234 struct ethtool_rxnfc *cmd) 3235 { 3236 struct ethtool_rx_flow_spec *fsp = 3237 (struct ethtool_rx_flow_spec *)&cmd->fs; 3238 struct i40e_rx_flow_userdef userdef = {0}; 3239 struct i40e_fdir_filter *rule = NULL; 3240 struct hlist_node *node2; 3241 u64 input_set; 3242 u16 index; 3243 3244 hlist_for_each_entry_safe(rule, node2, 3245 &pf->fdir_filter_list, fdir_node) { 3246 if (fsp->location <= rule->fd_id) 3247 break; 3248 } 3249 3250 if (!rule || fsp->location != rule->fd_id) 3251 return -EINVAL; 3252 3253 fsp->flow_type = rule->flow_type; 3254 if (fsp->flow_type == IP_USER_FLOW) { 3255 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4; 3256 fsp->h_u.usr_ip4_spec.proto = 0; 3257 fsp->m_u.usr_ip4_spec.proto = 0; 3258 } 3259 3260 if (fsp->flow_type == IPV6_USER_FLOW || 3261 fsp->flow_type == UDP_V6_FLOW || 3262 fsp->flow_type == TCP_V6_FLOW || 3263 fsp->flow_type == SCTP_V6_FLOW) { 3264 /* Reverse the src and dest notion, since the HW views them 3265 * from Tx perspective where as the user expects it from 3266 * Rx filter view. 3267 */ 3268 fsp->h_u.tcp_ip6_spec.psrc = rule->dst_port; 3269 fsp->h_u.tcp_ip6_spec.pdst = rule->src_port; 3270 memcpy(fsp->h_u.tcp_ip6_spec.ip6dst, rule->src_ip6, 3271 sizeof(__be32) * 4); 3272 memcpy(fsp->h_u.tcp_ip6_spec.ip6src, rule->dst_ip6, 3273 sizeof(__be32) * 4); 3274 } else { 3275 /* Reverse the src and dest notion, since the HW views them 3276 * from Tx perspective where as the user expects it from 3277 * Rx filter view. 3278 */ 3279 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port; 3280 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port; 3281 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip; 3282 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip; 3283 } 3284 3285 switch (rule->flow_type) { 3286 case SCTP_V4_FLOW: 3287 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP; 3288 break; 3289 case TCP_V4_FLOW: 3290 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3291 break; 3292 case UDP_V4_FLOW: 3293 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3294 break; 3295 case SCTP_V6_FLOW: 3296 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP; 3297 break; 3298 case TCP_V6_FLOW: 3299 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3300 break; 3301 case UDP_V6_FLOW: 3302 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3303 break; 3304 case IP_USER_FLOW: 3305 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER; 3306 break; 3307 case IPV6_USER_FLOW: 3308 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER; 3309 break; 3310 default: 3311 /* If we have stored a filter with a flow type not listed here 3312 * it is almost certainly a driver bug. WARN(), and then 3313 * assign the input_set as if all fields are enabled to avoid 3314 * reading unassigned memory. 3315 */ 3316 WARN(1, "Missing input set index for flow_type %d\n", 3317 rule->flow_type); 3318 input_set = 0xFFFFFFFFFFFFFFFFULL; 3319 goto no_input_set; 3320 } 3321 3322 input_set = i40e_read_fd_input_set(pf, index); 3323 3324 no_input_set: 3325 if (input_set & I40E_L3_V6_SRC_MASK) { 3326 fsp->m_u.tcp_ip6_spec.ip6src[0] = htonl(0xFFFFFFFF); 3327 fsp->m_u.tcp_ip6_spec.ip6src[1] = htonl(0xFFFFFFFF); 3328 fsp->m_u.tcp_ip6_spec.ip6src[2] = htonl(0xFFFFFFFF); 3329 fsp->m_u.tcp_ip6_spec.ip6src[3] = htonl(0xFFFFFFFF); 3330 } 3331 3332 if (input_set & I40E_L3_V6_DST_MASK) { 3333 fsp->m_u.tcp_ip6_spec.ip6dst[0] = htonl(0xFFFFFFFF); 3334 fsp->m_u.tcp_ip6_spec.ip6dst[1] = htonl(0xFFFFFFFF); 3335 fsp->m_u.tcp_ip6_spec.ip6dst[2] = htonl(0xFFFFFFFF); 3336 fsp->m_u.tcp_ip6_spec.ip6dst[3] = htonl(0xFFFFFFFF); 3337 } 3338 3339 if (input_set & I40E_L3_SRC_MASK) 3340 fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF); 3341 3342 if (input_set & I40E_L3_DST_MASK) 3343 fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF); 3344 3345 if (input_set & I40E_L4_SRC_MASK) 3346 fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF); 3347 3348 if (input_set & I40E_L4_DST_MASK) 3349 fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF); 3350 3351 if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET) 3352 fsp->ring_cookie = RX_CLS_FLOW_DISC; 3353 else 3354 fsp->ring_cookie = rule->q_index; 3355 3356 if (rule->vlan_tag) { 3357 fsp->h_ext.vlan_etype = rule->vlan_etype; 3358 fsp->m_ext.vlan_etype = htons(0xFFFF); 3359 fsp->h_ext.vlan_tci = rule->vlan_tag; 3360 fsp->m_ext.vlan_tci = htons(0xFFFF); 3361 fsp->flow_type |= FLOW_EXT; 3362 } 3363 3364 if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) { 3365 struct i40e_vsi *vsi; 3366 3367 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi); 3368 if (vsi && vsi->type == I40E_VSI_SRIOV) { 3369 /* VFs are zero-indexed by the driver, but ethtool 3370 * expects them to be one-indexed, so add one here 3371 */ 3372 u64 ring_vf = vsi->vf_id + 1; 3373 3374 ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF; 3375 fsp->ring_cookie |= ring_vf; 3376 } 3377 } 3378 3379 if (rule->flex_filter) { 3380 userdef.flex_filter = true; 3381 userdef.flex_word = be16_to_cpu(rule->flex_word); 3382 userdef.flex_offset = rule->flex_offset; 3383 } 3384 3385 i40e_fill_rx_flow_user_data(fsp, &userdef); 3386 3387 return 0; 3388 } 3389 3390 /** 3391 * i40e_get_rxnfc - command to get RX flow classification rules 3392 * @netdev: network interface device structure 3393 * @cmd: ethtool rxnfc command 3394 * @rule_locs: pointer to store rule data 3395 * 3396 * Returns Success if the command is supported. 3397 **/ 3398 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd, 3399 u32 *rule_locs) 3400 { 3401 struct i40e_netdev_priv *np = netdev_priv(netdev); 3402 struct i40e_vsi *vsi = np->vsi; 3403 struct i40e_pf *pf = vsi->back; 3404 int ret = -EOPNOTSUPP; 3405 3406 switch (cmd->cmd) { 3407 case ETHTOOL_GRXRINGS: 3408 cmd->data = vsi->rss_size; 3409 ret = 0; 3410 break; 3411 case ETHTOOL_GRXFH: 3412 ret = i40e_get_rss_hash_opts(pf, cmd); 3413 break; 3414 case ETHTOOL_GRXCLSRLCNT: 3415 cmd->rule_cnt = pf->fdir_pf_active_filters; 3416 /* report total rule count */ 3417 cmd->data = i40e_get_fd_cnt_all(pf); 3418 ret = 0; 3419 break; 3420 case ETHTOOL_GRXCLSRULE: 3421 ret = i40e_get_ethtool_fdir_entry(pf, cmd); 3422 break; 3423 case ETHTOOL_GRXCLSRLALL: 3424 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs); 3425 break; 3426 default: 3427 break; 3428 } 3429 3430 return ret; 3431 } 3432 3433 /** 3434 * i40e_get_rss_hash_bits - Read RSS Hash bits from register 3435 * @nfc: pointer to user request 3436 * @i_setc: bits currently set 3437 * 3438 * Returns value of bits to be set per user request 3439 **/ 3440 static u64 i40e_get_rss_hash_bits(struct ethtool_rxnfc *nfc, u64 i_setc) 3441 { 3442 u64 i_set = i_setc; 3443 u64 src_l3 = 0, dst_l3 = 0; 3444 3445 if (nfc->data & RXH_L4_B_0_1) 3446 i_set |= I40E_L4_SRC_MASK; 3447 else 3448 i_set &= ~I40E_L4_SRC_MASK; 3449 if (nfc->data & RXH_L4_B_2_3) 3450 i_set |= I40E_L4_DST_MASK; 3451 else 3452 i_set &= ~I40E_L4_DST_MASK; 3453 3454 if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) { 3455 src_l3 = I40E_L3_V6_SRC_MASK; 3456 dst_l3 = I40E_L3_V6_DST_MASK; 3457 } else if (nfc->flow_type == TCP_V4_FLOW || 3458 nfc->flow_type == UDP_V4_FLOW) { 3459 src_l3 = I40E_L3_SRC_MASK; 3460 dst_l3 = I40E_L3_DST_MASK; 3461 } else { 3462 /* Any other flow type are not supported here */ 3463 return i_set; 3464 } 3465 3466 if (nfc->data & RXH_IP_SRC) 3467 i_set |= src_l3; 3468 else 3469 i_set &= ~src_l3; 3470 if (nfc->data & RXH_IP_DST) 3471 i_set |= dst_l3; 3472 else 3473 i_set &= ~dst_l3; 3474 3475 return i_set; 3476 } 3477 3478 /** 3479 * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash 3480 * @pf: pointer to the physical function struct 3481 * @nfc: ethtool rxnfc command 3482 * 3483 * Returns Success if the flow input set is supported. 3484 **/ 3485 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc) 3486 { 3487 struct i40e_hw *hw = &pf->hw; 3488 u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) | 3489 ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32); 3490 u8 flow_pctype = 0; 3491 u64 i_set, i_setc; 3492 3493 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 3494 dev_err(&pf->pdev->dev, 3495 "Change of RSS hash input set is not supported when MFP mode is enabled\n"); 3496 return -EOPNOTSUPP; 3497 } 3498 3499 /* RSS does not support anything other than hashing 3500 * to queues on src and dst IPs and ports 3501 */ 3502 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 3503 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 3504 return -EINVAL; 3505 3506 switch (nfc->flow_type) { 3507 case TCP_V4_FLOW: 3508 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3509 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3510 hena |= 3511 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK); 3512 break; 3513 case TCP_V6_FLOW: 3514 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3515 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3516 hena |= 3517 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK); 3518 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3519 hena |= 3520 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK); 3521 break; 3522 case UDP_V4_FLOW: 3523 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3524 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3525 hena |= 3526 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) | 3527 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP); 3528 3529 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 3530 break; 3531 case UDP_V6_FLOW: 3532 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3533 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3534 hena |= 3535 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) | 3536 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP); 3537 3538 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 3539 break; 3540 case AH_ESP_V4_FLOW: 3541 case AH_V4_FLOW: 3542 case ESP_V4_FLOW: 3543 case SCTP_V4_FLOW: 3544 if ((nfc->data & RXH_L4_B_0_1) || 3545 (nfc->data & RXH_L4_B_2_3)) 3546 return -EINVAL; 3547 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER); 3548 break; 3549 case AH_ESP_V6_FLOW: 3550 case AH_V6_FLOW: 3551 case ESP_V6_FLOW: 3552 case SCTP_V6_FLOW: 3553 if ((nfc->data & RXH_L4_B_0_1) || 3554 (nfc->data & RXH_L4_B_2_3)) 3555 return -EINVAL; 3556 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER); 3557 break; 3558 case IPV4_FLOW: 3559 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) | 3560 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 3561 break; 3562 case IPV6_FLOW: 3563 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) | 3564 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 3565 break; 3566 default: 3567 return -EINVAL; 3568 } 3569 3570 if (flow_pctype) { 3571 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, 3572 flow_pctype)) | 3573 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, 3574 flow_pctype)) << 32); 3575 i_set = i40e_get_rss_hash_bits(nfc, i_setc); 3576 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_pctype), 3577 (u32)i_set); 3578 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_pctype), 3579 (u32)(i_set >> 32)); 3580 hena |= BIT_ULL(flow_pctype); 3581 } 3582 3583 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena); 3584 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32)); 3585 i40e_flush(hw); 3586 3587 return 0; 3588 } 3589 3590 /** 3591 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry 3592 * @vsi: Pointer to the targeted VSI 3593 * @input: The filter to update or NULL to indicate deletion 3594 * @sw_idx: Software index to the filter 3595 * @cmd: The command to get or set Rx flow classification rules 3596 * 3597 * This function updates (or deletes) a Flow Director entry from 3598 * the hlist of the corresponding PF 3599 * 3600 * Returns 0 on success 3601 **/ 3602 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi, 3603 struct i40e_fdir_filter *input, 3604 u16 sw_idx, 3605 struct ethtool_rxnfc *cmd) 3606 { 3607 struct i40e_fdir_filter *rule, *parent; 3608 struct i40e_pf *pf = vsi->back; 3609 struct hlist_node *node2; 3610 int err = -EINVAL; 3611 3612 parent = NULL; 3613 rule = NULL; 3614 3615 hlist_for_each_entry_safe(rule, node2, 3616 &pf->fdir_filter_list, fdir_node) { 3617 /* hash found, or no matching entry */ 3618 if (rule->fd_id >= sw_idx) 3619 break; 3620 parent = rule; 3621 } 3622 3623 /* if there is an old rule occupying our place remove it */ 3624 if (rule && (rule->fd_id == sw_idx)) { 3625 /* Remove this rule, since we're either deleting it, or 3626 * replacing it. 3627 */ 3628 err = i40e_add_del_fdir(vsi, rule, false); 3629 hlist_del(&rule->fdir_node); 3630 kfree(rule); 3631 pf->fdir_pf_active_filters--; 3632 } 3633 3634 /* If we weren't given an input, this is a delete, so just return the 3635 * error code indicating if there was an entry at the requested slot 3636 */ 3637 if (!input) 3638 return err; 3639 3640 /* Otherwise, install the new rule as requested */ 3641 INIT_HLIST_NODE(&input->fdir_node); 3642 3643 /* add filter to the list */ 3644 if (parent) 3645 hlist_add_behind(&input->fdir_node, &parent->fdir_node); 3646 else 3647 hlist_add_head(&input->fdir_node, 3648 &pf->fdir_filter_list); 3649 3650 /* update counts */ 3651 pf->fdir_pf_active_filters++; 3652 3653 return 0; 3654 } 3655 3656 /** 3657 * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table 3658 * @pf: pointer to PF structure 3659 * 3660 * This function searches the list of filters and determines which FLX_PIT 3661 * entries are still required. It will prune any entries which are no longer 3662 * in use after the deletion. 3663 **/ 3664 static void i40e_prune_flex_pit_list(struct i40e_pf *pf) 3665 { 3666 struct i40e_flex_pit *entry, *tmp; 3667 struct i40e_fdir_filter *rule; 3668 3669 /* First, we'll check the l3 table */ 3670 list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) { 3671 bool found = false; 3672 3673 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3674 if (rule->flow_type != IP_USER_FLOW) 3675 continue; 3676 if (rule->flex_filter && 3677 rule->flex_offset == entry->src_offset) { 3678 found = true; 3679 break; 3680 } 3681 } 3682 3683 /* If we didn't find the filter, then we can prune this entry 3684 * from the list. 3685 */ 3686 if (!found) { 3687 list_del(&entry->list); 3688 kfree(entry); 3689 } 3690 } 3691 3692 /* Followed by the L4 table */ 3693 list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) { 3694 bool found = false; 3695 3696 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3697 /* Skip this filter if it's L3, since we already 3698 * checked those in the above loop 3699 */ 3700 if (rule->flow_type == IP_USER_FLOW) 3701 continue; 3702 if (rule->flex_filter && 3703 rule->flex_offset == entry->src_offset) { 3704 found = true; 3705 break; 3706 } 3707 } 3708 3709 /* If we didn't find the filter, then we can prune this entry 3710 * from the list. 3711 */ 3712 if (!found) { 3713 list_del(&entry->list); 3714 kfree(entry); 3715 } 3716 } 3717 } 3718 3719 /** 3720 * i40e_del_fdir_entry - Deletes a Flow Director filter entry 3721 * @vsi: Pointer to the targeted VSI 3722 * @cmd: The command to get or set Rx flow classification rules 3723 * 3724 * The function removes a Flow Director filter entry from the 3725 * hlist of the corresponding PF 3726 * 3727 * Returns 0 on success 3728 */ 3729 static int i40e_del_fdir_entry(struct i40e_vsi *vsi, 3730 struct ethtool_rxnfc *cmd) 3731 { 3732 struct ethtool_rx_flow_spec *fsp = 3733 (struct ethtool_rx_flow_spec *)&cmd->fs; 3734 struct i40e_pf *pf = vsi->back; 3735 int ret = 0; 3736 3737 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 3738 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 3739 return -EBUSY; 3740 3741 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 3742 return -EBUSY; 3743 3744 ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd); 3745 3746 i40e_prune_flex_pit_list(pf); 3747 3748 i40e_fdir_check_and_reenable(pf); 3749 return ret; 3750 } 3751 3752 /** 3753 * i40e_unused_pit_index - Find an unused PIT index for given list 3754 * @pf: the PF data structure 3755 * 3756 * Find the first unused flexible PIT index entry. We search both the L3 and 3757 * L4 flexible PIT lists so that the returned index is unique and unused by 3758 * either currently programmed L3 or L4 filters. We use a bit field as storage 3759 * to track which indexes are already used. 3760 **/ 3761 static u8 i40e_unused_pit_index(struct i40e_pf *pf) 3762 { 3763 unsigned long available_index = 0xFF; 3764 struct i40e_flex_pit *entry; 3765 3766 /* We need to make sure that the new index isn't in use by either L3 3767 * or L4 filters so that IP_USER_FLOW filters can program both L3 and 3768 * L4 to use the same index. 3769 */ 3770 3771 list_for_each_entry(entry, &pf->l4_flex_pit_list, list) 3772 clear_bit(entry->pit_index, &available_index); 3773 3774 list_for_each_entry(entry, &pf->l3_flex_pit_list, list) 3775 clear_bit(entry->pit_index, &available_index); 3776 3777 return find_first_bit(&available_index, 8); 3778 } 3779 3780 /** 3781 * i40e_find_flex_offset - Find an existing flex src_offset 3782 * @flex_pit_list: L3 or L4 flex PIT list 3783 * @src_offset: new src_offset to find 3784 * 3785 * Searches the flex_pit_list for an existing offset. If no offset is 3786 * currently programmed, then this will return an ERR_PTR if there is no space 3787 * to add a new offset, otherwise it returns NULL. 3788 **/ 3789 static 3790 struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list, 3791 u16 src_offset) 3792 { 3793 struct i40e_flex_pit *entry; 3794 int size = 0; 3795 3796 /* Search for the src_offset first. If we find a matching entry 3797 * already programmed, we can simply re-use it. 3798 */ 3799 list_for_each_entry(entry, flex_pit_list, list) { 3800 size++; 3801 if (entry->src_offset == src_offset) 3802 return entry; 3803 } 3804 3805 /* If we haven't found an entry yet, then the provided src offset has 3806 * not yet been programmed. We will program the src offset later on, 3807 * but we need to indicate whether there is enough space to do so 3808 * here. We'll make use of ERR_PTR for this purpose. 3809 */ 3810 if (size >= I40E_FLEX_PIT_TABLE_SIZE) 3811 return ERR_PTR(-ENOSPC); 3812 3813 return NULL; 3814 } 3815 3816 /** 3817 * i40e_add_flex_offset - Add src_offset to flex PIT table list 3818 * @flex_pit_list: L3 or L4 flex PIT list 3819 * @src_offset: new src_offset to add 3820 * @pit_index: the PIT index to program 3821 * 3822 * This function programs the new src_offset to the list. It is expected that 3823 * i40e_find_flex_offset has already been tried and returned NULL, indicating 3824 * that this offset is not programmed, and that the list has enough space to 3825 * store another offset. 3826 * 3827 * Returns 0 on success, and negative value on error. 3828 **/ 3829 static int i40e_add_flex_offset(struct list_head *flex_pit_list, 3830 u16 src_offset, 3831 u8 pit_index) 3832 { 3833 struct i40e_flex_pit *new_pit, *entry; 3834 3835 new_pit = kzalloc(sizeof(*entry), GFP_KERNEL); 3836 if (!new_pit) 3837 return -ENOMEM; 3838 3839 new_pit->src_offset = src_offset; 3840 new_pit->pit_index = pit_index; 3841 3842 /* We need to insert this item such that the list is sorted by 3843 * src_offset in ascending order. 3844 */ 3845 list_for_each_entry(entry, flex_pit_list, list) { 3846 if (new_pit->src_offset < entry->src_offset) { 3847 list_add_tail(&new_pit->list, &entry->list); 3848 return 0; 3849 } 3850 3851 /* If we found an entry with our offset already programmed we 3852 * can simply return here, after freeing the memory. However, 3853 * if the pit_index does not match we need to report an error. 3854 */ 3855 if (new_pit->src_offset == entry->src_offset) { 3856 int err = 0; 3857 3858 /* If the PIT index is not the same we can't re-use 3859 * the entry, so we must report an error. 3860 */ 3861 if (new_pit->pit_index != entry->pit_index) 3862 err = -EINVAL; 3863 3864 kfree(new_pit); 3865 return err; 3866 } 3867 } 3868 3869 /* If we reached here, then we haven't yet added the item. This means 3870 * that we should add the item at the end of the list. 3871 */ 3872 list_add_tail(&new_pit->list, flex_pit_list); 3873 return 0; 3874 } 3875 3876 /** 3877 * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table 3878 * @pf: Pointer to the PF structure 3879 * @flex_pit_list: list of flexible src offsets in use 3880 * @flex_pit_start: index to first entry for this section of the table 3881 * 3882 * In order to handle flexible data, the hardware uses a table of values 3883 * called the FLX_PIT table. This table is used to indicate which sections of 3884 * the input correspond to what PIT index values. Unfortunately, hardware is 3885 * very restrictive about programming this table. Entries must be ordered by 3886 * src_offset in ascending order, without duplicates. Additionally, unused 3887 * entries must be set to the unused index value, and must have valid size and 3888 * length according to the src_offset ordering. 3889 * 3890 * This function will reprogram the FLX_PIT register from a book-keeping 3891 * structure that we guarantee is already ordered correctly, and has no more 3892 * than 3 entries. 3893 * 3894 * To make things easier, we only support flexible values of one word length, 3895 * rather than allowing variable length flexible values. 3896 **/ 3897 static void __i40e_reprogram_flex_pit(struct i40e_pf *pf, 3898 struct list_head *flex_pit_list, 3899 int flex_pit_start) 3900 { 3901 struct i40e_flex_pit *entry = NULL; 3902 u16 last_offset = 0; 3903 int i = 0, j = 0; 3904 3905 /* First, loop over the list of flex PIT entries, and reprogram the 3906 * registers. 3907 */ 3908 list_for_each_entry(entry, flex_pit_list, list) { 3909 /* We have to be careful when programming values for the 3910 * largest SRC_OFFSET value. It is possible that adding 3911 * additional empty values at the end would overflow the space 3912 * for the SRC_OFFSET in the FLX_PIT register. To avoid this, 3913 * we check here and add the empty values prior to adding the 3914 * largest value. 3915 * 3916 * To determine this, we will use a loop from i+1 to 3, which 3917 * will determine whether the unused entries would have valid 3918 * SRC_OFFSET. Note that there cannot be extra entries past 3919 * this value, because the only valid values would have been 3920 * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not 3921 * have been added to the list in the first place. 3922 */ 3923 for (j = i + 1; j < 3; j++) { 3924 u16 offset = entry->src_offset + j; 3925 int index = flex_pit_start + i; 3926 u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 3927 1, 3928 offset - 3); 3929 3930 if (offset > I40E_MAX_FLEX_SRC_OFFSET) { 3931 i40e_write_rx_ctl(&pf->hw, 3932 I40E_PRTQF_FLX_PIT(index), 3933 value); 3934 i++; 3935 } 3936 } 3937 3938 /* Now, we can program the actual value into the table */ 3939 i40e_write_rx_ctl(&pf->hw, 3940 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 3941 I40E_FLEX_PREP_VAL(entry->pit_index + 50, 3942 1, 3943 entry->src_offset)); 3944 i++; 3945 } 3946 3947 /* In order to program the last entries in the table, we need to 3948 * determine the valid offset. If the list is empty, we'll just start 3949 * with 0. Otherwise, we'll start with the last item offset and add 1. 3950 * This ensures that all entries have valid sizes. If we don't do this 3951 * correctly, the hardware will disable flexible field parsing. 3952 */ 3953 if (!list_empty(flex_pit_list)) 3954 last_offset = list_prev_entry(entry, list)->src_offset + 1; 3955 3956 for (; i < 3; i++, last_offset++) { 3957 i40e_write_rx_ctl(&pf->hw, 3958 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 3959 I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 3960 1, 3961 last_offset)); 3962 } 3963 } 3964 3965 /** 3966 * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change 3967 * @pf: pointer to the PF structure 3968 * 3969 * This function reprograms both the L3 and L4 FLX_PIT tables. See the 3970 * internal helper function for implementation details. 3971 **/ 3972 static void i40e_reprogram_flex_pit(struct i40e_pf *pf) 3973 { 3974 __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list, 3975 I40E_FLEX_PIT_IDX_START_L3); 3976 3977 __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list, 3978 I40E_FLEX_PIT_IDX_START_L4); 3979 3980 /* We also need to program the L3 and L4 GLQF ORT register */ 3981 i40e_write_rx_ctl(&pf->hw, 3982 I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX), 3983 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3, 3984 3, 1)); 3985 3986 i40e_write_rx_ctl(&pf->hw, 3987 I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX), 3988 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4, 3989 3, 1)); 3990 } 3991 3992 /** 3993 * i40e_flow_str - Converts a flow_type into a human readable string 3994 * @fsp: the flow specification 3995 * 3996 * Currently only flow types we support are included here, and the string 3997 * value attempts to match what ethtool would use to configure this flow type. 3998 **/ 3999 static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp) 4000 { 4001 switch (fsp->flow_type & ~FLOW_EXT) { 4002 case TCP_V4_FLOW: 4003 return "tcp4"; 4004 case UDP_V4_FLOW: 4005 return "udp4"; 4006 case SCTP_V4_FLOW: 4007 return "sctp4"; 4008 case IP_USER_FLOW: 4009 return "ip4"; 4010 case TCP_V6_FLOW: 4011 return "tcp6"; 4012 case UDP_V6_FLOW: 4013 return "udp6"; 4014 case SCTP_V6_FLOW: 4015 return "sctp6"; 4016 case IPV6_USER_FLOW: 4017 return "ip6"; 4018 default: 4019 return "unknown"; 4020 } 4021 } 4022 4023 /** 4024 * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index 4025 * @pit_index: PIT index to convert 4026 * 4027 * Returns the mask for a given PIT index. Will return 0 if the pit_index is 4028 * of range. 4029 **/ 4030 static u64 i40e_pit_index_to_mask(int pit_index) 4031 { 4032 switch (pit_index) { 4033 case 0: 4034 return I40E_FLEX_50_MASK; 4035 case 1: 4036 return I40E_FLEX_51_MASK; 4037 case 2: 4038 return I40E_FLEX_52_MASK; 4039 case 3: 4040 return I40E_FLEX_53_MASK; 4041 case 4: 4042 return I40E_FLEX_54_MASK; 4043 case 5: 4044 return I40E_FLEX_55_MASK; 4045 case 6: 4046 return I40E_FLEX_56_MASK; 4047 case 7: 4048 return I40E_FLEX_57_MASK; 4049 default: 4050 return 0; 4051 } 4052 } 4053 4054 /** 4055 * i40e_print_input_set - Show changes between two input sets 4056 * @vsi: the vsi being configured 4057 * @old: the old input set 4058 * @new: the new input set 4059 * 4060 * Print the difference between old and new input sets by showing which series 4061 * of words are toggled on or off. Only displays the bits we actually support 4062 * changing. 4063 **/ 4064 static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new) 4065 { 4066 struct i40e_pf *pf = vsi->back; 4067 bool old_value, new_value; 4068 int i; 4069 4070 old_value = !!(old & I40E_L3_SRC_MASK); 4071 new_value = !!(new & I40E_L3_SRC_MASK); 4072 if (old_value != new_value) 4073 netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n", 4074 old_value ? "ON" : "OFF", 4075 new_value ? "ON" : "OFF"); 4076 4077 old_value = !!(old & I40E_L3_DST_MASK); 4078 new_value = !!(new & I40E_L3_DST_MASK); 4079 if (old_value != new_value) 4080 netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n", 4081 old_value ? "ON" : "OFF", 4082 new_value ? "ON" : "OFF"); 4083 4084 old_value = !!(old & I40E_L4_SRC_MASK); 4085 new_value = !!(new & I40E_L4_SRC_MASK); 4086 if (old_value != new_value) 4087 netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n", 4088 old_value ? "ON" : "OFF", 4089 new_value ? "ON" : "OFF"); 4090 4091 old_value = !!(old & I40E_L4_DST_MASK); 4092 new_value = !!(new & I40E_L4_DST_MASK); 4093 if (old_value != new_value) 4094 netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n", 4095 old_value ? "ON" : "OFF", 4096 new_value ? "ON" : "OFF"); 4097 4098 old_value = !!(old & I40E_VERIFY_TAG_MASK); 4099 new_value = !!(new & I40E_VERIFY_TAG_MASK); 4100 if (old_value != new_value) 4101 netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n", 4102 old_value ? "ON" : "OFF", 4103 new_value ? "ON" : "OFF"); 4104 4105 /* Show change of flexible filter entries */ 4106 for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) { 4107 u64 flex_mask = i40e_pit_index_to_mask(i); 4108 4109 old_value = !!(old & flex_mask); 4110 new_value = !!(new & flex_mask); 4111 if (old_value != new_value) 4112 netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n", 4113 i, 4114 old_value ? "ON" : "OFF", 4115 new_value ? "ON" : "OFF"); 4116 } 4117 4118 netif_info(pf, drv, vsi->netdev, " Current input set: %0llx\n", 4119 old); 4120 netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n", 4121 new); 4122 } 4123 4124 /** 4125 * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid 4126 * @vsi: pointer to the targeted VSI 4127 * @fsp: pointer to Rx flow specification 4128 * @userdef: userdefined data from flow specification 4129 * 4130 * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support 4131 * for partial matches exists with a few limitations. First, hardware only 4132 * supports masking by word boundary (2 bytes) and not per individual bit. 4133 * Second, hardware is limited to using one mask for a flow type and cannot 4134 * use a separate mask for each filter. 4135 * 4136 * To support these limitations, if we already have a configured filter for 4137 * the specified type, this function enforces that new filters of the type 4138 * match the configured input set. Otherwise, if we do not have a filter of 4139 * the specified type, we allow the input set to be updated to match the 4140 * desired filter. 4141 * 4142 * To help ensure that administrators understand why filters weren't displayed 4143 * as supported, we print a diagnostic message displaying how the input set 4144 * would change and warning to delete the preexisting filters if required. 4145 * 4146 * Returns 0 on successful input set match, and a negative return code on 4147 * failure. 4148 **/ 4149 static int i40e_check_fdir_input_set(struct i40e_vsi *vsi, 4150 struct ethtool_rx_flow_spec *fsp, 4151 struct i40e_rx_flow_userdef *userdef) 4152 { 4153 static const __be32 ipv6_full_mask[4] = {cpu_to_be32(0xffffffff), 4154 cpu_to_be32(0xffffffff), cpu_to_be32(0xffffffff), 4155 cpu_to_be32(0xffffffff)}; 4156 struct ethtool_tcpip6_spec *tcp_ip6_spec; 4157 struct ethtool_usrip6_spec *usr_ip6_spec; 4158 struct ethtool_tcpip4_spec *tcp_ip4_spec; 4159 struct ethtool_usrip4_spec *usr_ip4_spec; 4160 struct i40e_pf *pf = vsi->back; 4161 u64 current_mask, new_mask; 4162 bool new_flex_offset = false; 4163 bool flex_l3 = false; 4164 u16 *fdir_filter_count; 4165 u16 index, src_offset = 0; 4166 u8 pit_index = 0; 4167 int err; 4168 4169 switch (fsp->flow_type & ~FLOW_EXT) { 4170 case SCTP_V4_FLOW: 4171 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP; 4172 fdir_filter_count = &pf->fd_sctp4_filter_cnt; 4173 break; 4174 case TCP_V4_FLOW: 4175 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 4176 fdir_filter_count = &pf->fd_tcp4_filter_cnt; 4177 break; 4178 case UDP_V4_FLOW: 4179 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 4180 fdir_filter_count = &pf->fd_udp4_filter_cnt; 4181 break; 4182 case SCTP_V6_FLOW: 4183 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP; 4184 fdir_filter_count = &pf->fd_sctp6_filter_cnt; 4185 break; 4186 case TCP_V6_FLOW: 4187 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 4188 fdir_filter_count = &pf->fd_tcp6_filter_cnt; 4189 break; 4190 case UDP_V6_FLOW: 4191 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 4192 fdir_filter_count = &pf->fd_udp6_filter_cnt; 4193 break; 4194 case IP_USER_FLOW: 4195 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER; 4196 fdir_filter_count = &pf->fd_ip4_filter_cnt; 4197 flex_l3 = true; 4198 break; 4199 case IPV6_USER_FLOW: 4200 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER; 4201 fdir_filter_count = &pf->fd_ip6_filter_cnt; 4202 flex_l3 = true; 4203 break; 4204 default: 4205 return -EOPNOTSUPP; 4206 } 4207 4208 /* Read the current input set from register memory. */ 4209 current_mask = i40e_read_fd_input_set(pf, index); 4210 new_mask = current_mask; 4211 4212 /* Determine, if any, the required changes to the input set in order 4213 * to support the provided mask. 4214 * 4215 * Hardware only supports masking at word (2 byte) granularity and does 4216 * not support full bitwise masking. This implementation simplifies 4217 * even further and only supports fully enabled or fully disabled 4218 * masks for each field, even though we could split the ip4src and 4219 * ip4dst fields. 4220 */ 4221 switch (fsp->flow_type & ~FLOW_EXT) { 4222 case SCTP_V4_FLOW: 4223 new_mask &= ~I40E_VERIFY_TAG_MASK; 4224 fallthrough; 4225 case TCP_V4_FLOW: 4226 case UDP_V4_FLOW: 4227 tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec; 4228 4229 /* IPv4 source address */ 4230 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 4231 new_mask |= I40E_L3_SRC_MASK; 4232 else if (!tcp_ip4_spec->ip4src) 4233 new_mask &= ~I40E_L3_SRC_MASK; 4234 else 4235 return -EOPNOTSUPP; 4236 4237 /* IPv4 destination address */ 4238 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 4239 new_mask |= I40E_L3_DST_MASK; 4240 else if (!tcp_ip4_spec->ip4dst) 4241 new_mask &= ~I40E_L3_DST_MASK; 4242 else 4243 return -EOPNOTSUPP; 4244 4245 /* L4 source port */ 4246 if (tcp_ip4_spec->psrc == htons(0xFFFF)) 4247 new_mask |= I40E_L4_SRC_MASK; 4248 else if (!tcp_ip4_spec->psrc) 4249 new_mask &= ~I40E_L4_SRC_MASK; 4250 else 4251 return -EOPNOTSUPP; 4252 4253 /* L4 destination port */ 4254 if (tcp_ip4_spec->pdst == htons(0xFFFF)) 4255 new_mask |= I40E_L4_DST_MASK; 4256 else if (!tcp_ip4_spec->pdst) 4257 new_mask &= ~I40E_L4_DST_MASK; 4258 else 4259 return -EOPNOTSUPP; 4260 4261 /* Filtering on Type of Service is not supported. */ 4262 if (tcp_ip4_spec->tos) 4263 return -EOPNOTSUPP; 4264 4265 break; 4266 case SCTP_V6_FLOW: 4267 new_mask &= ~I40E_VERIFY_TAG_MASK; 4268 fallthrough; 4269 case TCP_V6_FLOW: 4270 case UDP_V6_FLOW: 4271 tcp_ip6_spec = &fsp->m_u.tcp_ip6_spec; 4272 4273 /* Check if user provided IPv6 source address. */ 4274 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6src, 4275 (struct in6_addr *)&ipv6_full_mask)) 4276 new_mask |= I40E_L3_V6_SRC_MASK; 4277 else if (ipv6_addr_any((struct in6_addr *) 4278 &tcp_ip6_spec->ip6src)) 4279 new_mask &= ~I40E_L3_V6_SRC_MASK; 4280 else 4281 return -EOPNOTSUPP; 4282 4283 /* Check if user provided destination address. */ 4284 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6dst, 4285 (struct in6_addr *)&ipv6_full_mask)) 4286 new_mask |= I40E_L3_V6_DST_MASK; 4287 else if (ipv6_addr_any((struct in6_addr *) 4288 &tcp_ip6_spec->ip6dst)) 4289 new_mask &= ~I40E_L3_V6_DST_MASK; 4290 else 4291 return -EOPNOTSUPP; 4292 4293 /* L4 source port */ 4294 if (tcp_ip6_spec->psrc == htons(0xFFFF)) 4295 new_mask |= I40E_L4_SRC_MASK; 4296 else if (!tcp_ip6_spec->psrc) 4297 new_mask &= ~I40E_L4_SRC_MASK; 4298 else 4299 return -EOPNOTSUPP; 4300 4301 /* L4 destination port */ 4302 if (tcp_ip6_spec->pdst == htons(0xFFFF)) 4303 new_mask |= I40E_L4_DST_MASK; 4304 else if (!tcp_ip6_spec->pdst) 4305 new_mask &= ~I40E_L4_DST_MASK; 4306 else 4307 return -EOPNOTSUPP; 4308 4309 /* Filtering on Traffic Classes is not supported. */ 4310 if (tcp_ip6_spec->tclass) 4311 return -EOPNOTSUPP; 4312 break; 4313 case IP_USER_FLOW: 4314 usr_ip4_spec = &fsp->m_u.usr_ip4_spec; 4315 4316 /* IPv4 source address */ 4317 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 4318 new_mask |= I40E_L3_SRC_MASK; 4319 else if (!usr_ip4_spec->ip4src) 4320 new_mask &= ~I40E_L3_SRC_MASK; 4321 else 4322 return -EOPNOTSUPP; 4323 4324 /* IPv4 destination address */ 4325 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 4326 new_mask |= I40E_L3_DST_MASK; 4327 else if (!usr_ip4_spec->ip4dst) 4328 new_mask &= ~I40E_L3_DST_MASK; 4329 else 4330 return -EOPNOTSUPP; 4331 4332 /* First 4 bytes of L4 header */ 4333 if (usr_ip4_spec->l4_4_bytes == htonl(0xFFFFFFFF)) 4334 new_mask |= I40E_L4_SRC_MASK | I40E_L4_DST_MASK; 4335 else if (!usr_ip4_spec->l4_4_bytes) 4336 new_mask &= ~(I40E_L4_SRC_MASK | I40E_L4_DST_MASK); 4337 else 4338 return -EOPNOTSUPP; 4339 4340 /* Filtering on Type of Service is not supported. */ 4341 if (usr_ip4_spec->tos) 4342 return -EOPNOTSUPP; 4343 4344 /* Filtering on IP version is not supported */ 4345 if (usr_ip4_spec->ip_ver) 4346 return -EINVAL; 4347 4348 /* Filtering on L4 protocol is not supported */ 4349 if (usr_ip4_spec->proto) 4350 return -EINVAL; 4351 4352 break; 4353 case IPV6_USER_FLOW: 4354 usr_ip6_spec = &fsp->m_u.usr_ip6_spec; 4355 4356 /* Check if user provided IPv6 source address. */ 4357 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6src, 4358 (struct in6_addr *)&ipv6_full_mask)) 4359 new_mask |= I40E_L3_V6_SRC_MASK; 4360 else if (ipv6_addr_any((struct in6_addr *) 4361 &usr_ip6_spec->ip6src)) 4362 new_mask &= ~I40E_L3_V6_SRC_MASK; 4363 else 4364 return -EOPNOTSUPP; 4365 4366 /* Check if user provided destination address. */ 4367 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6dst, 4368 (struct in6_addr *)&ipv6_full_mask)) 4369 new_mask |= I40E_L3_V6_DST_MASK; 4370 else if (ipv6_addr_any((struct in6_addr *) 4371 &usr_ip6_spec->ip6src)) 4372 new_mask &= ~I40E_L3_V6_DST_MASK; 4373 else 4374 return -EOPNOTSUPP; 4375 4376 if (usr_ip6_spec->l4_4_bytes == htonl(0xFFFFFFFF)) 4377 new_mask |= I40E_L4_SRC_MASK | I40E_L4_DST_MASK; 4378 else if (!usr_ip6_spec->l4_4_bytes) 4379 new_mask &= ~(I40E_L4_SRC_MASK | I40E_L4_DST_MASK); 4380 else 4381 return -EOPNOTSUPP; 4382 4383 /* Filtering on Traffic class is not supported. */ 4384 if (usr_ip6_spec->tclass) 4385 return -EOPNOTSUPP; 4386 4387 /* Filtering on L4 protocol is not supported */ 4388 if (usr_ip6_spec->l4_proto) 4389 return -EINVAL; 4390 4391 break; 4392 default: 4393 return -EOPNOTSUPP; 4394 } 4395 4396 if (fsp->flow_type & FLOW_EXT) { 4397 /* Allow only 802.1Q and no etype defined, as 4398 * later it's modified to 0x8100 4399 */ 4400 if (fsp->h_ext.vlan_etype != htons(ETH_P_8021Q) && 4401 fsp->h_ext.vlan_etype != 0) 4402 return -EOPNOTSUPP; 4403 if (fsp->m_ext.vlan_tci == htons(0xFFFF)) 4404 new_mask |= I40E_VLAN_SRC_MASK; 4405 else 4406 new_mask &= ~I40E_VLAN_SRC_MASK; 4407 } 4408 4409 /* First, clear all flexible filter entries */ 4410 new_mask &= ~I40E_FLEX_INPUT_MASK; 4411 4412 /* If we have a flexible filter, try to add this offset to the correct 4413 * flexible filter PIT list. Once finished, we can update the mask. 4414 * If the src_offset changed, we will get a new mask value which will 4415 * trigger an input set change. 4416 */ 4417 if (userdef->flex_filter) { 4418 struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL; 4419 4420 /* Flexible offset must be even, since the flexible payload 4421 * must be aligned on 2-byte boundary. 4422 */ 4423 if (userdef->flex_offset & 0x1) { 4424 dev_warn(&pf->pdev->dev, 4425 "Flexible data offset must be 2-byte aligned\n"); 4426 return -EINVAL; 4427 } 4428 4429 src_offset = userdef->flex_offset >> 1; 4430 4431 /* FLX_PIT source offset value is only so large */ 4432 if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) { 4433 dev_warn(&pf->pdev->dev, 4434 "Flexible data must reside within first 64 bytes of the packet payload\n"); 4435 return -EINVAL; 4436 } 4437 4438 /* See if this offset has already been programmed. If we get 4439 * an ERR_PTR, then the filter is not safe to add. Otherwise, 4440 * if we get a NULL pointer, this means we will need to add 4441 * the offset. 4442 */ 4443 flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list, 4444 src_offset); 4445 if (IS_ERR(flex_pit)) 4446 return PTR_ERR(flex_pit); 4447 4448 /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown) 4449 * packet types, and thus we need to program both L3 and L4 4450 * flexible values. These must have identical flexible index, 4451 * as otherwise we can't correctly program the input set. So 4452 * we'll find both an L3 and L4 index and make sure they are 4453 * the same. 4454 */ 4455 if (flex_l3) { 4456 l3_flex_pit = 4457 i40e_find_flex_offset(&pf->l3_flex_pit_list, 4458 src_offset); 4459 if (IS_ERR(l3_flex_pit)) 4460 return PTR_ERR(l3_flex_pit); 4461 4462 if (flex_pit) { 4463 /* If we already had a matching L4 entry, we 4464 * need to make sure that the L3 entry we 4465 * obtained uses the same index. 4466 */ 4467 if (l3_flex_pit) { 4468 if (l3_flex_pit->pit_index != 4469 flex_pit->pit_index) { 4470 return -EINVAL; 4471 } 4472 } else { 4473 new_flex_offset = true; 4474 } 4475 } else { 4476 flex_pit = l3_flex_pit; 4477 } 4478 } 4479 4480 /* If we didn't find an existing flex offset, we need to 4481 * program a new one. However, we don't immediately program it 4482 * here because we will wait to program until after we check 4483 * that it is safe to change the input set. 4484 */ 4485 if (!flex_pit) { 4486 new_flex_offset = true; 4487 pit_index = i40e_unused_pit_index(pf); 4488 } else { 4489 pit_index = flex_pit->pit_index; 4490 } 4491 4492 /* Update the mask with the new offset */ 4493 new_mask |= i40e_pit_index_to_mask(pit_index); 4494 } 4495 4496 /* If the mask and flexible filter offsets for this filter match the 4497 * currently programmed values we don't need any input set change, so 4498 * this filter is safe to install. 4499 */ 4500 if (new_mask == current_mask && !new_flex_offset) 4501 return 0; 4502 4503 netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n", 4504 i40e_flow_str(fsp)); 4505 i40e_print_input_set(vsi, current_mask, new_mask); 4506 if (new_flex_offset) { 4507 netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d", 4508 pit_index, src_offset); 4509 } 4510 4511 /* Hardware input sets are global across multiple ports, so even the 4512 * main port cannot change them when in MFP mode as this would impact 4513 * any filters on the other ports. 4514 */ 4515 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 4516 netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n"); 4517 return -EOPNOTSUPP; 4518 } 4519 4520 /* This filter requires us to update the input set. However, hardware 4521 * only supports one input set per flow type, and does not support 4522 * separate masks for each filter. This means that we can only support 4523 * a single mask for all filters of a specific type. 4524 * 4525 * If we have preexisting filters, they obviously depend on the 4526 * current programmed input set. Display a diagnostic message in this 4527 * case explaining why the filter could not be accepted. 4528 */ 4529 if (*fdir_filter_count) { 4530 netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n", 4531 i40e_flow_str(fsp), 4532 *fdir_filter_count); 4533 return -EOPNOTSUPP; 4534 } 4535 4536 i40e_write_fd_input_set(pf, index, new_mask); 4537 4538 /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented 4539 * frames. If we're programming the input set for IPv4/Other, we also 4540 * need to program the IPv4/Fragmented input set. Since we don't have 4541 * separate support, we'll always assume and enforce that the two flow 4542 * types must have matching input sets. 4543 */ 4544 if (index == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) 4545 i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4, 4546 new_mask); 4547 4548 /* Add the new offset and update table, if necessary */ 4549 if (new_flex_offset) { 4550 err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset, 4551 pit_index); 4552 if (err) 4553 return err; 4554 4555 if (flex_l3) { 4556 err = i40e_add_flex_offset(&pf->l3_flex_pit_list, 4557 src_offset, 4558 pit_index); 4559 if (err) 4560 return err; 4561 } 4562 4563 i40e_reprogram_flex_pit(pf); 4564 } 4565 4566 return 0; 4567 } 4568 4569 /** 4570 * i40e_match_fdir_filter - Return true of two filters match 4571 * @a: pointer to filter struct 4572 * @b: pointer to filter struct 4573 * 4574 * Returns true if the two filters match exactly the same criteria. I.e. they 4575 * match the same flow type and have the same parameters. We don't need to 4576 * check any input-set since all filters of the same flow type must use the 4577 * same input set. 4578 **/ 4579 static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a, 4580 struct i40e_fdir_filter *b) 4581 { 4582 /* The filters do not much if any of these criteria differ. */ 4583 if (a->dst_ip != b->dst_ip || 4584 a->src_ip != b->src_ip || 4585 a->dst_port != b->dst_port || 4586 a->src_port != b->src_port || 4587 a->flow_type != b->flow_type || 4588 a->ipl4_proto != b->ipl4_proto || 4589 a->vlan_tag != b->vlan_tag || 4590 a->vlan_etype != b->vlan_etype) 4591 return false; 4592 4593 return true; 4594 } 4595 4596 /** 4597 * i40e_disallow_matching_filters - Check that new filters differ 4598 * @vsi: pointer to the targeted VSI 4599 * @input: new filter to check 4600 * 4601 * Due to hardware limitations, it is not possible for two filters that match 4602 * similar criteria to be programmed at the same time. This is true for a few 4603 * reasons: 4604 * 4605 * (a) all filters matching a particular flow type must use the same input 4606 * set, that is they must match the same criteria. 4607 * (b) different flow types will never match the same packet, as the flow type 4608 * is decided by hardware before checking which rules apply. 4609 * (c) hardware has no way to distinguish which order filters apply in. 4610 * 4611 * Due to this, we can't really support using the location data to order 4612 * filters in the hardware parsing. It is technically possible for the user to 4613 * request two filters matching the same criteria but which select different 4614 * queues. In this case, rather than keep both filters in the list, we reject 4615 * the 2nd filter when the user requests adding it. 4616 * 4617 * This avoids needing to track location for programming the filter to 4618 * hardware, and ensures that we avoid some strange scenarios involving 4619 * deleting filters which match the same criteria. 4620 **/ 4621 static int i40e_disallow_matching_filters(struct i40e_vsi *vsi, 4622 struct i40e_fdir_filter *input) 4623 { 4624 struct i40e_pf *pf = vsi->back; 4625 struct i40e_fdir_filter *rule; 4626 struct hlist_node *node2; 4627 4628 /* Loop through every filter, and check that it doesn't match */ 4629 hlist_for_each_entry_safe(rule, node2, 4630 &pf->fdir_filter_list, fdir_node) { 4631 /* Don't check the filters match if they share the same fd_id, 4632 * since the new filter is actually just updating the target 4633 * of the old filter. 4634 */ 4635 if (rule->fd_id == input->fd_id) 4636 continue; 4637 4638 /* If any filters match, then print a warning message to the 4639 * kernel message buffer and bail out. 4640 */ 4641 if (i40e_match_fdir_filter(rule, input)) { 4642 dev_warn(&pf->pdev->dev, 4643 "Existing user defined filter %d already matches this flow.\n", 4644 rule->fd_id); 4645 return -EINVAL; 4646 } 4647 } 4648 4649 return 0; 4650 } 4651 4652 /** 4653 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters 4654 * @vsi: pointer to the targeted VSI 4655 * @cmd: command to get or set RX flow classification rules 4656 * 4657 * Add Flow Director filters for a specific flow spec based on their 4658 * protocol. Returns 0 if the filters were successfully added. 4659 **/ 4660 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi, 4661 struct ethtool_rxnfc *cmd) 4662 { 4663 struct i40e_rx_flow_userdef userdef; 4664 struct ethtool_rx_flow_spec *fsp; 4665 struct i40e_fdir_filter *input; 4666 u16 dest_vsi = 0, q_index = 0; 4667 struct i40e_pf *pf; 4668 int ret = -EINVAL; 4669 u8 dest_ctl; 4670 4671 if (!vsi) 4672 return -EINVAL; 4673 pf = vsi->back; 4674 4675 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED)) 4676 return -EOPNOTSUPP; 4677 4678 if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state)) 4679 return -ENOSPC; 4680 4681 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 4682 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 4683 return -EBUSY; 4684 4685 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 4686 return -EBUSY; 4687 4688 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs; 4689 4690 /* Parse the user-defined field */ 4691 if (i40e_parse_rx_flow_user_data(fsp, &userdef)) 4692 return -EINVAL; 4693 4694 /* Extended MAC field is not supported */ 4695 if (fsp->flow_type & FLOW_MAC_EXT) 4696 return -EINVAL; 4697 4698 ret = i40e_check_fdir_input_set(vsi, fsp, &userdef); 4699 if (ret) 4700 return ret; 4701 4702 if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort + 4703 pf->hw.func_caps.fd_filters_guaranteed)) { 4704 return -EINVAL; 4705 } 4706 4707 /* ring_cookie is either the drop index, or is a mask of the queue 4708 * index and VF id we wish to target. 4709 */ 4710 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) { 4711 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 4712 } else { 4713 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie); 4714 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie); 4715 4716 if (!vf) { 4717 if (ring >= vsi->num_queue_pairs) 4718 return -EINVAL; 4719 dest_vsi = vsi->id; 4720 } else { 4721 /* VFs are zero-indexed, so we subtract one here */ 4722 vf--; 4723 4724 if (vf >= pf->num_alloc_vfs) 4725 return -EINVAL; 4726 if (ring >= pf->vf[vf].num_queue_pairs) 4727 return -EINVAL; 4728 dest_vsi = pf->vf[vf].lan_vsi_id; 4729 } 4730 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX; 4731 q_index = ring; 4732 } 4733 4734 input = kzalloc(sizeof(*input), GFP_KERNEL); 4735 4736 if (!input) 4737 return -ENOMEM; 4738 4739 input->fd_id = fsp->location; 4740 input->q_index = q_index; 4741 input->dest_vsi = dest_vsi; 4742 input->dest_ctl = dest_ctl; 4743 input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID; 4744 input->cnt_index = I40E_FD_SB_STAT_IDX(pf->hw.pf_id); 4745 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4746 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4747 input->flow_type = fsp->flow_type & ~FLOW_EXT; 4748 4749 input->vlan_etype = fsp->h_ext.vlan_etype; 4750 if (!fsp->m_ext.vlan_etype && fsp->h_ext.vlan_tci) 4751 input->vlan_etype = cpu_to_be16(ETH_P_8021Q); 4752 if (fsp->m_ext.vlan_tci && input->vlan_etype) 4753 input->vlan_tag = fsp->h_ext.vlan_tci; 4754 if (input->flow_type == IPV6_USER_FLOW || 4755 input->flow_type == UDP_V6_FLOW || 4756 input->flow_type == TCP_V6_FLOW || 4757 input->flow_type == SCTP_V6_FLOW) { 4758 /* Reverse the src and dest notion, since the HW expects them 4759 * to be from Tx perspective where as the input from user is 4760 * from Rx filter view. 4761 */ 4762 input->ipl4_proto = fsp->h_u.usr_ip6_spec.l4_proto; 4763 input->dst_port = fsp->h_u.tcp_ip6_spec.psrc; 4764 input->src_port = fsp->h_u.tcp_ip6_spec.pdst; 4765 memcpy(input->dst_ip6, fsp->h_u.ah_ip6_spec.ip6src, 4766 sizeof(__be32) * 4); 4767 memcpy(input->src_ip6, fsp->h_u.ah_ip6_spec.ip6dst, 4768 sizeof(__be32) * 4); 4769 } else { 4770 /* Reverse the src and dest notion, since the HW expects them 4771 * to be from Tx perspective where as the input from user is 4772 * from Rx filter view. 4773 */ 4774 input->ipl4_proto = fsp->h_u.usr_ip4_spec.proto; 4775 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc; 4776 input->src_port = fsp->h_u.tcp_ip4_spec.pdst; 4777 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4778 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4779 } 4780 4781 if (userdef.flex_filter) { 4782 input->flex_filter = true; 4783 input->flex_word = cpu_to_be16(userdef.flex_word); 4784 input->flex_offset = userdef.flex_offset; 4785 } 4786 4787 /* Avoid programming two filters with identical match criteria. */ 4788 ret = i40e_disallow_matching_filters(vsi, input); 4789 if (ret) 4790 goto free_filter_memory; 4791 4792 /* Add the input filter to the fdir_input_list, possibly replacing 4793 * a previous filter. Do not free the input structure after adding it 4794 * to the list as this would cause a use-after-free bug. 4795 */ 4796 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL); 4797 ret = i40e_add_del_fdir(vsi, input, true); 4798 if (ret) 4799 goto remove_sw_rule; 4800 return 0; 4801 4802 remove_sw_rule: 4803 hlist_del(&input->fdir_node); 4804 pf->fdir_pf_active_filters--; 4805 free_filter_memory: 4806 kfree(input); 4807 return ret; 4808 } 4809 4810 /** 4811 * i40e_set_rxnfc - command to set RX flow classification rules 4812 * @netdev: network interface device structure 4813 * @cmd: ethtool rxnfc command 4814 * 4815 * Returns Success if the command is supported. 4816 **/ 4817 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd) 4818 { 4819 struct i40e_netdev_priv *np = netdev_priv(netdev); 4820 struct i40e_vsi *vsi = np->vsi; 4821 struct i40e_pf *pf = vsi->back; 4822 int ret = -EOPNOTSUPP; 4823 4824 switch (cmd->cmd) { 4825 case ETHTOOL_SRXFH: 4826 ret = i40e_set_rss_hash_opt(pf, cmd); 4827 break; 4828 case ETHTOOL_SRXCLSRLINS: 4829 ret = i40e_add_fdir_ethtool(vsi, cmd); 4830 break; 4831 case ETHTOOL_SRXCLSRLDEL: 4832 ret = i40e_del_fdir_entry(vsi, cmd); 4833 break; 4834 default: 4835 break; 4836 } 4837 4838 return ret; 4839 } 4840 4841 /** 4842 * i40e_max_channels - get Max number of combined channels supported 4843 * @vsi: vsi pointer 4844 **/ 4845 static unsigned int i40e_max_channels(struct i40e_vsi *vsi) 4846 { 4847 /* TODO: This code assumes DCB and FD is disabled for now. */ 4848 return vsi->alloc_queue_pairs; 4849 } 4850 4851 /** 4852 * i40e_get_channels - Get the current channels enabled and max supported etc. 4853 * @dev: network interface device structure 4854 * @ch: ethtool channels structure 4855 * 4856 * We don't support separate tx and rx queues as channels. The other count 4857 * represents how many queues are being used for control. max_combined counts 4858 * how many queue pairs we can support. They may not be mapped 1 to 1 with 4859 * q_vectors since we support a lot more queue pairs than q_vectors. 4860 **/ 4861 static void i40e_get_channels(struct net_device *dev, 4862 struct ethtool_channels *ch) 4863 { 4864 struct i40e_netdev_priv *np = netdev_priv(dev); 4865 struct i40e_vsi *vsi = np->vsi; 4866 struct i40e_pf *pf = vsi->back; 4867 4868 /* report maximum channels */ 4869 ch->max_combined = i40e_max_channels(vsi); 4870 4871 /* report info for other vector */ 4872 ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0; 4873 ch->max_other = ch->other_count; 4874 4875 /* Note: This code assumes DCB is disabled for now. */ 4876 ch->combined_count = vsi->num_queue_pairs; 4877 } 4878 4879 /** 4880 * i40e_set_channels - Set the new channels count. 4881 * @dev: network interface device structure 4882 * @ch: ethtool channels structure 4883 * 4884 * The new channels count may not be the same as requested by the user 4885 * since it gets rounded down to a power of 2 value. 4886 **/ 4887 static int i40e_set_channels(struct net_device *dev, 4888 struct ethtool_channels *ch) 4889 { 4890 const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 4891 struct i40e_netdev_priv *np = netdev_priv(dev); 4892 unsigned int count = ch->combined_count; 4893 struct i40e_vsi *vsi = np->vsi; 4894 struct i40e_pf *pf = vsi->back; 4895 struct i40e_fdir_filter *rule; 4896 struct hlist_node *node2; 4897 int new_count; 4898 int err = 0; 4899 4900 /* We do not support setting channels for any other VSI at present */ 4901 if (vsi->type != I40E_VSI_MAIN) 4902 return -EINVAL; 4903 4904 /* We do not support setting channels via ethtool when TCs are 4905 * configured through mqprio 4906 */ 4907 if (pf->flags & I40E_FLAG_TC_MQPRIO) 4908 return -EINVAL; 4909 4910 /* verify they are not requesting separate vectors */ 4911 if (!count || ch->rx_count || ch->tx_count) 4912 return -EINVAL; 4913 4914 /* verify other_count has not changed */ 4915 if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0)) 4916 return -EINVAL; 4917 4918 /* verify the number of channels does not exceed hardware limits */ 4919 if (count > i40e_max_channels(vsi)) 4920 return -EINVAL; 4921 4922 /* verify that the number of channels does not invalidate any current 4923 * flow director rules 4924 */ 4925 hlist_for_each_entry_safe(rule, node2, 4926 &pf->fdir_filter_list, fdir_node) { 4927 if (rule->dest_ctl != drop && count <= rule->q_index) { 4928 dev_warn(&pf->pdev->dev, 4929 "Existing user defined filter %d assigns flow to queue %d\n", 4930 rule->fd_id, rule->q_index); 4931 err = -EINVAL; 4932 } 4933 } 4934 4935 if (err) { 4936 dev_err(&pf->pdev->dev, 4937 "Existing filter rules must be deleted to reduce combined channel count to %d\n", 4938 count); 4939 return err; 4940 } 4941 4942 /* update feature limits from largest to smallest supported values */ 4943 /* TODO: Flow director limit, DCB etc */ 4944 4945 /* use rss_reconfig to rebuild with new queue count and update traffic 4946 * class queue mapping 4947 */ 4948 new_count = i40e_reconfig_rss_queues(pf, count); 4949 if (new_count > 0) 4950 return 0; 4951 else 4952 return -EINVAL; 4953 } 4954 4955 /** 4956 * i40e_get_rxfh_key_size - get the RSS hash key size 4957 * @netdev: network interface device structure 4958 * 4959 * Returns the table size. 4960 **/ 4961 static u32 i40e_get_rxfh_key_size(struct net_device *netdev) 4962 { 4963 return I40E_HKEY_ARRAY_SIZE; 4964 } 4965 4966 /** 4967 * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size 4968 * @netdev: network interface device structure 4969 * 4970 * Returns the table size. 4971 **/ 4972 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev) 4973 { 4974 return I40E_HLUT_ARRAY_SIZE; 4975 } 4976 4977 /** 4978 * i40e_get_rxfh - get the rx flow hash indirection table 4979 * @netdev: network interface device structure 4980 * @indir: indirection table 4981 * @key: hash key 4982 * @hfunc: hash function 4983 * 4984 * Reads the indirection table directly from the hardware. Returns 0 on 4985 * success. 4986 **/ 4987 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 4988 u8 *hfunc) 4989 { 4990 struct i40e_netdev_priv *np = netdev_priv(netdev); 4991 struct i40e_vsi *vsi = np->vsi; 4992 u8 *lut, *seed = NULL; 4993 int ret; 4994 u16 i; 4995 4996 if (hfunc) 4997 *hfunc = ETH_RSS_HASH_TOP; 4998 4999 if (!indir) 5000 return 0; 5001 5002 seed = key; 5003 lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 5004 if (!lut) 5005 return -ENOMEM; 5006 ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE); 5007 if (ret) 5008 goto out; 5009 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 5010 indir[i] = (u32)(lut[i]); 5011 5012 out: 5013 kfree(lut); 5014 5015 return ret; 5016 } 5017 5018 /** 5019 * i40e_set_rxfh - set the rx flow hash indirection table 5020 * @netdev: network interface device structure 5021 * @indir: indirection table 5022 * @key: hash key 5023 * @hfunc: hash function to use 5024 * 5025 * Returns -EINVAL if the table specifies an invalid queue id, otherwise 5026 * returns 0 after programming the table. 5027 **/ 5028 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir, 5029 const u8 *key, const u8 hfunc) 5030 { 5031 struct i40e_netdev_priv *np = netdev_priv(netdev); 5032 struct i40e_vsi *vsi = np->vsi; 5033 struct i40e_pf *pf = vsi->back; 5034 u8 *seed = NULL; 5035 u16 i; 5036 5037 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) 5038 return -EOPNOTSUPP; 5039 5040 if (key) { 5041 if (!vsi->rss_hkey_user) { 5042 vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE, 5043 GFP_KERNEL); 5044 if (!vsi->rss_hkey_user) 5045 return -ENOMEM; 5046 } 5047 memcpy(vsi->rss_hkey_user, key, I40E_HKEY_ARRAY_SIZE); 5048 seed = vsi->rss_hkey_user; 5049 } 5050 if (!vsi->rss_lut_user) { 5051 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 5052 if (!vsi->rss_lut_user) 5053 return -ENOMEM; 5054 } 5055 5056 /* Each 32 bits pointed by 'indir' is stored with a lut entry */ 5057 if (indir) 5058 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 5059 vsi->rss_lut_user[i] = (u8)(indir[i]); 5060 else 5061 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE, 5062 vsi->rss_size); 5063 5064 return i40e_config_rss(vsi, seed, vsi->rss_lut_user, 5065 I40E_HLUT_ARRAY_SIZE); 5066 } 5067 5068 /** 5069 * i40e_get_priv_flags - report device private flags 5070 * @dev: network interface device structure 5071 * 5072 * The get string set count and the string set should be matched for each 5073 * flag returned. Add new strings for each flag to the i40e_gstrings_priv_flags 5074 * array. 5075 * 5076 * Returns a u32 bitmap of flags. 5077 **/ 5078 static u32 i40e_get_priv_flags(struct net_device *dev) 5079 { 5080 struct i40e_netdev_priv *np = netdev_priv(dev); 5081 struct i40e_vsi *vsi = np->vsi; 5082 struct i40e_pf *pf = vsi->back; 5083 u32 i, j, ret_flags = 0; 5084 5085 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 5086 const struct i40e_priv_flags *priv_flags; 5087 5088 priv_flags = &i40e_gstrings_priv_flags[i]; 5089 5090 if (priv_flags->flag & pf->flags) 5091 ret_flags |= BIT(i); 5092 } 5093 5094 if (pf->hw.pf_id != 0) 5095 return ret_flags; 5096 5097 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 5098 const struct i40e_priv_flags *priv_flags; 5099 5100 priv_flags = &i40e_gl_gstrings_priv_flags[j]; 5101 5102 if (priv_flags->flag & pf->flags) 5103 ret_flags |= BIT(i + j); 5104 } 5105 5106 return ret_flags; 5107 } 5108 5109 /** 5110 * i40e_set_priv_flags - set private flags 5111 * @dev: network interface device structure 5112 * @flags: bit flags to be set 5113 **/ 5114 static int i40e_set_priv_flags(struct net_device *dev, u32 flags) 5115 { 5116 struct i40e_netdev_priv *np = netdev_priv(dev); 5117 u64 orig_flags, new_flags, changed_flags; 5118 enum i40e_admin_queue_err adq_err; 5119 struct i40e_vsi *vsi = np->vsi; 5120 struct i40e_pf *pf = vsi->back; 5121 u32 reset_needed = 0; 5122 i40e_status status; 5123 u32 i, j; 5124 5125 orig_flags = READ_ONCE(pf->flags); 5126 new_flags = orig_flags; 5127 5128 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 5129 const struct i40e_priv_flags *priv_flags; 5130 5131 priv_flags = &i40e_gstrings_priv_flags[i]; 5132 5133 if (flags & BIT(i)) 5134 new_flags |= priv_flags->flag; 5135 else 5136 new_flags &= ~(priv_flags->flag); 5137 5138 /* If this is a read-only flag, it can't be changed */ 5139 if (priv_flags->read_only && 5140 ((orig_flags ^ new_flags) & ~BIT(i))) 5141 return -EOPNOTSUPP; 5142 } 5143 5144 if (pf->hw.pf_id != 0) 5145 goto flags_complete; 5146 5147 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 5148 const struct i40e_priv_flags *priv_flags; 5149 5150 priv_flags = &i40e_gl_gstrings_priv_flags[j]; 5151 5152 if (flags & BIT(i + j)) 5153 new_flags |= priv_flags->flag; 5154 else 5155 new_flags &= ~(priv_flags->flag); 5156 5157 /* If this is a read-only flag, it can't be changed */ 5158 if (priv_flags->read_only && 5159 ((orig_flags ^ new_flags) & ~BIT(i))) 5160 return -EOPNOTSUPP; 5161 } 5162 5163 flags_complete: 5164 changed_flags = orig_flags ^ new_flags; 5165 5166 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) 5167 reset_needed = I40E_PF_RESET_AND_REBUILD_FLAG; 5168 if (changed_flags & (I40E_FLAG_VEB_STATS_ENABLED | 5169 I40E_FLAG_LEGACY_RX | I40E_FLAG_SOURCE_PRUNING_DISABLED)) 5170 reset_needed = BIT(__I40E_PF_RESET_REQUESTED); 5171 5172 /* Before we finalize any flag changes, we need to perform some 5173 * checks to ensure that the changes are supported and safe. 5174 */ 5175 5176 /* ATR eviction is not supported on all devices */ 5177 if ((new_flags & I40E_FLAG_HW_ATR_EVICT_ENABLED) && 5178 !(pf->hw_features & I40E_HW_ATR_EVICT_CAPABLE)) 5179 return -EOPNOTSUPP; 5180 5181 /* If the driver detected FW LLDP was disabled on init, this flag could 5182 * be set, however we do not support _changing_ the flag: 5183 * - on XL710 if NPAR is enabled or FW API version < 1.7 5184 * - on X722 with FW API version < 1.6 5185 * There are situations where older FW versions/NPAR enabled PFs could 5186 * disable LLDP, however we _must_ not allow the user to enable/disable 5187 * LLDP with this flag on unsupported FW versions. 5188 */ 5189 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) { 5190 if (!(pf->hw.flags & I40E_HW_FLAG_FW_LLDP_STOPPABLE)) { 5191 dev_warn(&pf->pdev->dev, 5192 "Device does not support changing FW LLDP\n"); 5193 return -EOPNOTSUPP; 5194 } 5195 } 5196 5197 if (changed_flags & I40E_FLAG_RS_FEC && 5198 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && 5199 pf->hw.device_id != I40E_DEV_ID_25G_B) { 5200 dev_warn(&pf->pdev->dev, 5201 "Device does not support changing FEC configuration\n"); 5202 return -EOPNOTSUPP; 5203 } 5204 5205 if (changed_flags & I40E_FLAG_BASE_R_FEC && 5206 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && 5207 pf->hw.device_id != I40E_DEV_ID_25G_B && 5208 pf->hw.device_id != I40E_DEV_ID_KX_X722) { 5209 dev_warn(&pf->pdev->dev, 5210 "Device does not support changing FEC configuration\n"); 5211 return -EOPNOTSUPP; 5212 } 5213 5214 /* Process any additional changes needed as a result of flag changes. 5215 * The changed_flags value reflects the list of bits that were 5216 * changed in the code above. 5217 */ 5218 5219 /* Flush current ATR settings if ATR was disabled */ 5220 if ((changed_flags & I40E_FLAG_FD_ATR_ENABLED) && 5221 !(new_flags & I40E_FLAG_FD_ATR_ENABLED)) { 5222 set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state); 5223 set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state); 5224 } 5225 5226 if (changed_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT) { 5227 u16 sw_flags = 0, valid_flags = 0; 5228 int ret; 5229 5230 if (!(new_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT)) 5231 sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 5232 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 5233 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags, 5234 0, NULL); 5235 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) { 5236 dev_info(&pf->pdev->dev, 5237 "couldn't set switch config bits, err %s aq_err %s\n", 5238 i40e_stat_str(&pf->hw, ret), 5239 i40e_aq_str(&pf->hw, 5240 pf->hw.aq.asq_last_status)); 5241 /* not a fatal problem, just keep going */ 5242 } 5243 } 5244 5245 if ((changed_flags & I40E_FLAG_RS_FEC) || 5246 (changed_flags & I40E_FLAG_BASE_R_FEC)) { 5247 u8 fec_cfg = 0; 5248 5249 if (new_flags & I40E_FLAG_RS_FEC && 5250 new_flags & I40E_FLAG_BASE_R_FEC) { 5251 fec_cfg = I40E_AQ_SET_FEC_AUTO; 5252 } else if (new_flags & I40E_FLAG_RS_FEC) { 5253 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS | 5254 I40E_AQ_SET_FEC_ABILITY_RS); 5255 } else if (new_flags & I40E_FLAG_BASE_R_FEC) { 5256 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR | 5257 I40E_AQ_SET_FEC_ABILITY_KR); 5258 } 5259 if (i40e_set_fec_cfg(dev, fec_cfg)) 5260 dev_warn(&pf->pdev->dev, "Cannot change FEC config\n"); 5261 } 5262 5263 if ((changed_flags & I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) && 5264 (orig_flags & I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED)) { 5265 dev_err(&pf->pdev->dev, 5266 "Setting link-down-on-close not supported on this port (because total-port-shutdown is enabled)\n"); 5267 return -EOPNOTSUPP; 5268 } 5269 5270 if ((changed_flags & new_flags & 5271 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) && 5272 (new_flags & I40E_FLAG_MFP_ENABLED)) 5273 dev_warn(&pf->pdev->dev, 5274 "Turning on link-down-on-close flag may affect other partitions\n"); 5275 5276 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) { 5277 if (new_flags & I40E_FLAG_DISABLE_FW_LLDP) { 5278 #ifdef CONFIG_I40E_DCB 5279 i40e_dcb_sw_default_config(pf); 5280 #endif /* CONFIG_I40E_DCB */ 5281 i40e_aq_cfg_lldp_mib_change_event(&pf->hw, false, NULL); 5282 i40e_aq_stop_lldp(&pf->hw, true, false, NULL); 5283 } else { 5284 status = i40e_aq_start_lldp(&pf->hw, false, NULL); 5285 if (status) { 5286 adq_err = pf->hw.aq.asq_last_status; 5287 switch (adq_err) { 5288 case I40E_AQ_RC_EEXIST: 5289 dev_warn(&pf->pdev->dev, 5290 "FW LLDP agent is already running\n"); 5291 reset_needed = 0; 5292 break; 5293 case I40E_AQ_RC_EPERM: 5294 dev_warn(&pf->pdev->dev, 5295 "Device configuration forbids SW from starting the LLDP agent.\n"); 5296 return -EINVAL; 5297 case I40E_AQ_RC_EAGAIN: 5298 dev_warn(&pf->pdev->dev, 5299 "Stop FW LLDP agent command is still being processed, please try again in a second.\n"); 5300 return -EBUSY; 5301 default: 5302 dev_warn(&pf->pdev->dev, 5303 "Starting FW LLDP agent failed: error: %s, %s\n", 5304 i40e_stat_str(&pf->hw, 5305 status), 5306 i40e_aq_str(&pf->hw, 5307 adq_err)); 5308 return -EINVAL; 5309 } 5310 } 5311 } 5312 } 5313 5314 /* Now that we've checked to ensure that the new flags are valid, load 5315 * them into place. Since we only modify flags either (a) during 5316 * initialization or (b) while holding the RTNL lock, we don't need 5317 * anything fancy here. 5318 */ 5319 pf->flags = new_flags; 5320 5321 /* Issue reset to cause things to take effect, as additional bits 5322 * are added we will need to create a mask of bits requiring reset 5323 */ 5324 if (reset_needed) 5325 i40e_do_reset(pf, reset_needed, true); 5326 5327 return 0; 5328 } 5329 5330 /** 5331 * i40e_get_module_info - get (Q)SFP+ module type info 5332 * @netdev: network interface device structure 5333 * @modinfo: module EEPROM size and layout information structure 5334 **/ 5335 static int i40e_get_module_info(struct net_device *netdev, 5336 struct ethtool_modinfo *modinfo) 5337 { 5338 struct i40e_netdev_priv *np = netdev_priv(netdev); 5339 struct i40e_vsi *vsi = np->vsi; 5340 struct i40e_pf *pf = vsi->back; 5341 struct i40e_hw *hw = &pf->hw; 5342 u32 sff8472_comp = 0; 5343 u32 sff8472_swap = 0; 5344 u32 sff8636_rev = 0; 5345 i40e_status status; 5346 u32 type = 0; 5347 5348 /* Check if firmware supports reading module EEPROM. */ 5349 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) { 5350 netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n"); 5351 return -EINVAL; 5352 } 5353 5354 status = i40e_update_link_info(hw); 5355 if (status) 5356 return -EIO; 5357 5358 if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) { 5359 netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n"); 5360 return -EINVAL; 5361 } 5362 5363 type = hw->phy.link_info.module_type[0]; 5364 5365 switch (type) { 5366 case I40E_MODULE_TYPE_SFP: 5367 status = i40e_aq_get_phy_register(hw, 5368 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5369 I40E_I2C_EEPROM_DEV_ADDR, true, 5370 I40E_MODULE_SFF_8472_COMP, 5371 &sff8472_comp, NULL); 5372 if (status) 5373 return -EIO; 5374 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_SWAP, 5379 &sff8472_swap, NULL); 5380 if (status) 5381 return -EIO; 5382 5383 /* Check if the module requires address swap to access 5384 * the other EEPROM memory page. 5385 */ 5386 if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) { 5387 netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n"); 5388 modinfo->type = ETH_MODULE_SFF_8079; 5389 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5390 } else if (sff8472_comp == 0x00) { 5391 /* Module is not SFF-8472 compliant */ 5392 modinfo->type = ETH_MODULE_SFF_8079; 5393 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5394 } else if (!(sff8472_swap & I40E_MODULE_SFF_DDM_IMPLEMENTED)) { 5395 /* Module is SFF-8472 compliant but doesn't implement 5396 * Digital Diagnostic Monitoring (DDM). 5397 */ 5398 modinfo->type = ETH_MODULE_SFF_8079; 5399 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5400 } else { 5401 modinfo->type = ETH_MODULE_SFF_8472; 5402 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; 5403 } 5404 break; 5405 case I40E_MODULE_TYPE_QSFP_PLUS: 5406 /* Read from memory page 0. */ 5407 status = i40e_aq_get_phy_register(hw, 5408 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5409 0, true, 5410 I40E_MODULE_REVISION_ADDR, 5411 &sff8636_rev, NULL); 5412 if (status) 5413 return -EIO; 5414 /* Determine revision compliance byte */ 5415 if (sff8636_rev > 0x02) { 5416 /* Module is SFF-8636 compliant */ 5417 modinfo->type = ETH_MODULE_SFF_8636; 5418 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5419 } else { 5420 modinfo->type = ETH_MODULE_SFF_8436; 5421 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5422 } 5423 break; 5424 case I40E_MODULE_TYPE_QSFP28: 5425 modinfo->type = ETH_MODULE_SFF_8636; 5426 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5427 break; 5428 default: 5429 netdev_err(vsi->netdev, "Module type unrecognized\n"); 5430 return -EINVAL; 5431 } 5432 return 0; 5433 } 5434 5435 /** 5436 * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents 5437 * @netdev: network interface device structure 5438 * @ee: EEPROM dump request structure 5439 * @data: buffer to be filled with EEPROM contents 5440 **/ 5441 static int i40e_get_module_eeprom(struct net_device *netdev, 5442 struct ethtool_eeprom *ee, 5443 u8 *data) 5444 { 5445 struct i40e_netdev_priv *np = netdev_priv(netdev); 5446 struct i40e_vsi *vsi = np->vsi; 5447 struct i40e_pf *pf = vsi->back; 5448 struct i40e_hw *hw = &pf->hw; 5449 bool is_sfp = false; 5450 i40e_status status; 5451 u32 value = 0; 5452 int i; 5453 5454 if (!ee || !ee->len || !data) 5455 return -EINVAL; 5456 5457 if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP) 5458 is_sfp = true; 5459 5460 for (i = 0; i < ee->len; i++) { 5461 u32 offset = i + ee->offset; 5462 u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0; 5463 5464 /* Check if we need to access the other memory page */ 5465 if (is_sfp) { 5466 if (offset >= ETH_MODULE_SFF_8079_LEN) { 5467 offset -= ETH_MODULE_SFF_8079_LEN; 5468 addr = I40E_I2C_EEPROM_DEV_ADDR2; 5469 } 5470 } else { 5471 while (offset >= ETH_MODULE_SFF_8436_LEN) { 5472 /* Compute memory page number and offset. */ 5473 offset -= ETH_MODULE_SFF_8436_LEN / 2; 5474 addr++; 5475 } 5476 } 5477 5478 status = i40e_aq_get_phy_register(hw, 5479 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5480 addr, true, offset, &value, NULL); 5481 if (status) 5482 return -EIO; 5483 data[i] = value; 5484 } 5485 return 0; 5486 } 5487 5488 static int i40e_get_eee(struct net_device *netdev, struct ethtool_eee *edata) 5489 { 5490 struct i40e_netdev_priv *np = netdev_priv(netdev); 5491 struct i40e_aq_get_phy_abilities_resp phy_cfg; 5492 enum i40e_status_code status = 0; 5493 struct i40e_vsi *vsi = np->vsi; 5494 struct i40e_pf *pf = vsi->back; 5495 struct i40e_hw *hw = &pf->hw; 5496 5497 /* Get initial PHY capabilities */ 5498 status = i40e_aq_get_phy_capabilities(hw, false, true, &phy_cfg, NULL); 5499 if (status) 5500 return -EAGAIN; 5501 5502 /* Check whether NIC configuration is compatible with Energy Efficient 5503 * Ethernet (EEE) mode. 5504 */ 5505 if (phy_cfg.eee_capability == 0) 5506 return -EOPNOTSUPP; 5507 5508 edata->supported = SUPPORTED_Autoneg; 5509 edata->lp_advertised = edata->supported; 5510 5511 /* Get current configuration */ 5512 status = i40e_aq_get_phy_capabilities(hw, false, false, &phy_cfg, NULL); 5513 if (status) 5514 return -EAGAIN; 5515 5516 edata->advertised = phy_cfg.eee_capability ? SUPPORTED_Autoneg : 0U; 5517 edata->eee_enabled = !!edata->advertised; 5518 edata->tx_lpi_enabled = pf->stats.tx_lpi_status; 5519 5520 edata->eee_active = pf->stats.tx_lpi_status && pf->stats.rx_lpi_status; 5521 5522 return 0; 5523 } 5524 5525 static int i40e_is_eee_param_supported(struct net_device *netdev, 5526 struct ethtool_eee *edata) 5527 { 5528 struct i40e_netdev_priv *np = netdev_priv(netdev); 5529 struct i40e_vsi *vsi = np->vsi; 5530 struct i40e_pf *pf = vsi->back; 5531 struct i40e_ethtool_not_used { 5532 u32 value; 5533 const char *name; 5534 } param[] = { 5535 {edata->advertised & ~SUPPORTED_Autoneg, "advertise"}, 5536 {edata->tx_lpi_timer, "tx-timer"}, 5537 {edata->tx_lpi_enabled != pf->stats.tx_lpi_status, "tx-lpi"} 5538 }; 5539 int i; 5540 5541 for (i = 0; i < ARRAY_SIZE(param); i++) { 5542 if (param[i].value) { 5543 netdev_info(netdev, 5544 "EEE setting %s not supported\n", 5545 param[i].name); 5546 return -EOPNOTSUPP; 5547 } 5548 } 5549 5550 return 0; 5551 } 5552 5553 static int i40e_set_eee(struct net_device *netdev, struct ethtool_eee *edata) 5554 { 5555 struct i40e_netdev_priv *np = netdev_priv(netdev); 5556 struct i40e_aq_get_phy_abilities_resp abilities; 5557 enum i40e_status_code status = I40E_SUCCESS; 5558 struct i40e_aq_set_phy_config config; 5559 struct i40e_vsi *vsi = np->vsi; 5560 struct i40e_pf *pf = vsi->back; 5561 struct i40e_hw *hw = &pf->hw; 5562 __le16 eee_capability; 5563 5564 /* Deny parameters we don't support */ 5565 if (i40e_is_eee_param_supported(netdev, edata)) 5566 return -EOPNOTSUPP; 5567 5568 /* Get initial PHY capabilities */ 5569 status = i40e_aq_get_phy_capabilities(hw, false, true, &abilities, 5570 NULL); 5571 if (status) 5572 return -EAGAIN; 5573 5574 /* Check whether NIC configuration is compatible with Energy Efficient 5575 * Ethernet (EEE) mode. 5576 */ 5577 if (abilities.eee_capability == 0) 5578 return -EOPNOTSUPP; 5579 5580 /* Cache initial EEE capability */ 5581 eee_capability = abilities.eee_capability; 5582 5583 /* Get current PHY configuration */ 5584 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 5585 NULL); 5586 if (status) 5587 return -EAGAIN; 5588 5589 /* Cache current PHY configuration */ 5590 config.phy_type = abilities.phy_type; 5591 config.phy_type_ext = abilities.phy_type_ext; 5592 config.link_speed = abilities.link_speed; 5593 config.abilities = abilities.abilities | 5594 I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 5595 config.eeer = abilities.eeer_val; 5596 config.low_power_ctrl = abilities.d3_lpan; 5597 config.fec_config = abilities.fec_cfg_curr_mod_ext_info & 5598 I40E_AQ_PHY_FEC_CONFIG_MASK; 5599 5600 /* Set desired EEE state */ 5601 if (edata->eee_enabled) { 5602 config.eee_capability = eee_capability; 5603 config.eeer |= cpu_to_le32(I40E_PRTPM_EEER_TX_LPI_EN_MASK); 5604 } else { 5605 config.eee_capability = 0; 5606 config.eeer &= cpu_to_le32(~I40E_PRTPM_EEER_TX_LPI_EN_MASK); 5607 } 5608 5609 /* Apply modified PHY configuration */ 5610 status = i40e_aq_set_phy_config(hw, &config, NULL); 5611 if (status) 5612 return -EAGAIN; 5613 5614 return 0; 5615 } 5616 5617 static const struct ethtool_ops i40e_ethtool_recovery_mode_ops = { 5618 .get_drvinfo = i40e_get_drvinfo, 5619 .set_eeprom = i40e_set_eeprom, 5620 .get_eeprom_len = i40e_get_eeprom_len, 5621 .get_eeprom = i40e_get_eeprom, 5622 }; 5623 5624 static const struct ethtool_ops i40e_ethtool_ops = { 5625 .supported_coalesce_params = ETHTOOL_COALESCE_USECS | 5626 ETHTOOL_COALESCE_MAX_FRAMES_IRQ | 5627 ETHTOOL_COALESCE_USE_ADAPTIVE | 5628 ETHTOOL_COALESCE_RX_USECS_HIGH | 5629 ETHTOOL_COALESCE_TX_USECS_HIGH, 5630 .get_drvinfo = i40e_get_drvinfo, 5631 .get_regs_len = i40e_get_regs_len, 5632 .get_regs = i40e_get_regs, 5633 .nway_reset = i40e_nway_reset, 5634 .get_link = ethtool_op_get_link, 5635 .get_wol = i40e_get_wol, 5636 .set_wol = i40e_set_wol, 5637 .set_eeprom = i40e_set_eeprom, 5638 .get_eeprom_len = i40e_get_eeprom_len, 5639 .get_eeprom = i40e_get_eeprom, 5640 .get_ringparam = i40e_get_ringparam, 5641 .set_ringparam = i40e_set_ringparam, 5642 .get_pauseparam = i40e_get_pauseparam, 5643 .set_pauseparam = i40e_set_pauseparam, 5644 .get_msglevel = i40e_get_msglevel, 5645 .set_msglevel = i40e_set_msglevel, 5646 .get_rxnfc = i40e_get_rxnfc, 5647 .set_rxnfc = i40e_set_rxnfc, 5648 .self_test = i40e_diag_test, 5649 .get_strings = i40e_get_strings, 5650 .get_eee = i40e_get_eee, 5651 .set_eee = i40e_set_eee, 5652 .set_phys_id = i40e_set_phys_id, 5653 .get_sset_count = i40e_get_sset_count, 5654 .get_ethtool_stats = i40e_get_ethtool_stats, 5655 .get_coalesce = i40e_get_coalesce, 5656 .set_coalesce = i40e_set_coalesce, 5657 .get_rxfh_key_size = i40e_get_rxfh_key_size, 5658 .get_rxfh_indir_size = i40e_get_rxfh_indir_size, 5659 .get_rxfh = i40e_get_rxfh, 5660 .set_rxfh = i40e_set_rxfh, 5661 .get_channels = i40e_get_channels, 5662 .set_channels = i40e_set_channels, 5663 .get_module_info = i40e_get_module_info, 5664 .get_module_eeprom = i40e_get_module_eeprom, 5665 .get_ts_info = i40e_get_ts_info, 5666 .get_priv_flags = i40e_get_priv_flags, 5667 .set_priv_flags = i40e_set_priv_flags, 5668 .get_per_queue_coalesce = i40e_get_per_queue_coalesce, 5669 .set_per_queue_coalesce = i40e_set_per_queue_coalesce, 5670 .get_link_ksettings = i40e_get_link_ksettings, 5671 .set_link_ksettings = i40e_set_link_ksettings, 5672 .get_fecparam = i40e_get_fec_param, 5673 .set_fecparam = i40e_set_fec_param, 5674 .flash_device = i40e_ddp_flash, 5675 }; 5676 5677 void i40e_set_ethtool_ops(struct net_device *netdev) 5678 { 5679 struct i40e_netdev_priv *np = netdev_priv(netdev); 5680 struct i40e_pf *pf = np->vsi->back; 5681 5682 if (!test_bit(__I40E_RECOVERY_MODE, pf->state)) 5683 netdev->ethtool_ops = &i40e_ethtool_ops; 5684 else 5685 netdev->ethtool_ops = &i40e_ethtool_recovery_mode_ops; 5686 } 5687