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