1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright(c) 2013 - 2018 Intel Corporation. */ 3 4 /* ethtool support for i40e */ 5 6 #include "i40e.h" 7 #include "i40e_diag.h" 8 #include "i40e_txrx_common.h" 9 10 /* ethtool statistics helpers */ 11 12 /** 13 * struct i40e_stats - definition for an ethtool statistic 14 * @stat_string: statistic name to display in ethtool -S output 15 * @sizeof_stat: the sizeof() the stat, must be no greater than sizeof(u64) 16 * @stat_offset: offsetof() the stat from a base pointer 17 * 18 * This structure defines a statistic to be added to the ethtool stats buffer. 19 * It defines a statistic as offset from a common base pointer. Stats should 20 * be defined in constant arrays using the I40E_STAT macro, with every element 21 * of the array using the same _type for calculating the sizeof_stat and 22 * stat_offset. 23 * 24 * The @sizeof_stat is expected to be sizeof(u8), sizeof(u16), sizeof(u32) or 25 * sizeof(u64). Other sizes are not expected and will produce a WARN_ONCE from 26 * the i40e_add_ethtool_stat() helper function. 27 * 28 * The @stat_string is interpreted as a format string, allowing formatted 29 * values to be inserted while looping over multiple structures for a given 30 * statistics array. Thus, every statistic string in an array should have the 31 * same type and number of format specifiers, to be formatted by variadic 32 * arguments to the i40e_add_stat_string() helper function. 33 **/ 34 struct i40e_stats { 35 char stat_string[ETH_GSTRING_LEN]; 36 int sizeof_stat; 37 int stat_offset; 38 }; 39 40 /* Helper macro to define an i40e_stat structure with proper size and type. 41 * Use this when defining constant statistics arrays. Note that @_type expects 42 * only a type name and is used multiple times. 43 */ 44 #define I40E_STAT(_type, _name, _stat) { \ 45 .stat_string = _name, \ 46 .sizeof_stat = sizeof_field(_type, _stat), \ 47 .stat_offset = offsetof(_type, _stat) \ 48 } 49 50 /* Helper macro for defining some statistics directly copied from the netdev 51 * stats structure. 52 */ 53 #define I40E_NETDEV_STAT(_net_stat) \ 54 I40E_STAT(struct rtnl_link_stats64, #_net_stat, _net_stat) 55 56 /* Helper macro for defining some statistics related to queues */ 57 #define I40E_QUEUE_STAT(_name, _stat) \ 58 I40E_STAT(struct i40e_ring, _name, _stat) 59 60 /* Stats associated with a Tx or Rx ring */ 61 static const struct i40e_stats i40e_gstrings_queue_stats[] = { 62 I40E_QUEUE_STAT("%s-%u.packets", stats.packets), 63 I40E_QUEUE_STAT("%s-%u.bytes", stats.bytes), 64 }; 65 66 /** 67 * i40e_add_one_ethtool_stat - copy the stat into the supplied buffer 68 * @data: location to store the stat value 69 * @pointer: basis for where to copy from 70 * @stat: the stat definition 71 * 72 * Copies the stat data defined by the pointer and stat structure pair into 73 * the memory supplied as data. Used to implement i40e_add_ethtool_stats and 74 * i40e_add_queue_stats. If the pointer is null, data will be zero'd. 75 */ 76 static void 77 i40e_add_one_ethtool_stat(u64 *data, void *pointer, 78 const struct i40e_stats *stat) 79 { 80 char *p; 81 82 if (!pointer) { 83 /* ensure that the ethtool data buffer is zero'd for any stats 84 * which don't have a valid pointer. 85 */ 86 *data = 0; 87 return; 88 } 89 90 p = (char *)pointer + stat->stat_offset; 91 switch (stat->sizeof_stat) { 92 case sizeof(u64): 93 *data = *((u64 *)p); 94 break; 95 case sizeof(u32): 96 *data = *((u32 *)p); 97 break; 98 case sizeof(u16): 99 *data = *((u16 *)p); 100 break; 101 case sizeof(u8): 102 *data = *((u8 *)p); 103 break; 104 default: 105 WARN_ONCE(1, "unexpected stat size for %s", 106 stat->stat_string); 107 *data = 0; 108 } 109 } 110 111 /** 112 * __i40e_add_ethtool_stats - copy stats into the ethtool supplied buffer 113 * @data: ethtool stats buffer 114 * @pointer: location to copy stats from 115 * @stats: array of stats to copy 116 * @size: the size of the stats definition 117 * 118 * Copy the stats defined by the stats array using the pointer as a base into 119 * the data buffer supplied by ethtool. Updates the data pointer to point to 120 * the next empty location for successive calls to __i40e_add_ethtool_stats. 121 * If pointer is null, set the data values to zero and update the pointer to 122 * skip these stats. 123 **/ 124 static void 125 __i40e_add_ethtool_stats(u64 **data, void *pointer, 126 const struct i40e_stats stats[], 127 const unsigned int size) 128 { 129 unsigned int i; 130 131 for (i = 0; i < size; i++) 132 i40e_add_one_ethtool_stat((*data)++, pointer, &stats[i]); 133 } 134 135 /** 136 * i40e_add_ethtool_stats - copy stats into ethtool supplied buffer 137 * @data: ethtool stats buffer 138 * @pointer: location where stats are stored 139 * @stats: static const array of stat definitions 140 * 141 * Macro to ease the use of __i40e_add_ethtool_stats by taking a static 142 * constant stats array and passing the ARRAY_SIZE(). This avoids typos by 143 * ensuring that we pass the size associated with the given stats array. 144 * 145 * The parameter @stats is evaluated twice, so parameters with side effects 146 * should be avoided. 147 **/ 148 #define i40e_add_ethtool_stats(data, pointer, stats) \ 149 __i40e_add_ethtool_stats(data, pointer, stats, ARRAY_SIZE(stats)) 150 151 /** 152 * i40e_add_queue_stats - copy queue statistics into supplied buffer 153 * @data: ethtool stats buffer 154 * @ring: the ring to copy 155 * 156 * Queue statistics must be copied while protected by 157 * u64_stats_fetch_begin_irq, so we can't directly use i40e_add_ethtool_stats. 158 * Assumes that queue stats are defined in i40e_gstrings_queue_stats. If the 159 * ring pointer is null, zero out the queue stat values and update the data 160 * pointer. Otherwise safely copy the stats from the ring into the supplied 161 * buffer and update the data pointer when finished. 162 * 163 * This function expects to be called while under rcu_read_lock(). 164 **/ 165 static void 166 i40e_add_queue_stats(u64 **data, struct i40e_ring *ring) 167 { 168 const unsigned int size = ARRAY_SIZE(i40e_gstrings_queue_stats); 169 const struct i40e_stats *stats = i40e_gstrings_queue_stats; 170 unsigned int start; 171 unsigned int i; 172 173 /* To avoid invalid statistics values, ensure that we keep retrying 174 * the copy until we get a consistent value according to 175 * u64_stats_fetch_retry_irq. But first, make sure our ring is 176 * non-null before attempting to access its syncp. 177 */ 178 do { 179 start = !ring ? 0 : u64_stats_fetch_begin_irq(&ring->syncp); 180 for (i = 0; i < size; i++) { 181 i40e_add_one_ethtool_stat(&(*data)[i], ring, 182 &stats[i]); 183 } 184 } while (ring && u64_stats_fetch_retry_irq(&ring->syncp, start)); 185 186 /* Once we successfully copy the stats in, update the data pointer */ 187 *data += size; 188 } 189 190 /** 191 * __i40e_add_stat_strings - copy stat strings into ethtool buffer 192 * @p: ethtool supplied buffer 193 * @stats: stat definitions array 194 * @size: size of the stats array 195 * 196 * Format and copy the strings described by stats into the buffer pointed at 197 * by p. 198 **/ 199 static void __i40e_add_stat_strings(u8 **p, const struct i40e_stats stats[], 200 const unsigned int size, ...) 201 { 202 unsigned int i; 203 204 for (i = 0; i < size; i++) { 205 va_list args; 206 207 va_start(args, size); 208 vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args); 209 *p += ETH_GSTRING_LEN; 210 va_end(args); 211 } 212 } 213 214 /** 215 * i40e_add_stat_strings - copy stat strings into ethtool buffer 216 * @p: ethtool supplied buffer 217 * @stats: stat definitions array 218 * 219 * Format and copy the strings described by the const static stats value into 220 * the buffer pointed at by p. 221 * 222 * The parameter @stats is evaluated twice, so parameters with side effects 223 * should be avoided. Additionally, stats must be an array such that 224 * ARRAY_SIZE can be called on it. 225 **/ 226 #define i40e_add_stat_strings(p, stats, ...) \ 227 __i40e_add_stat_strings(p, stats, ARRAY_SIZE(stats), ## __VA_ARGS__) 228 229 #define I40E_PF_STAT(_name, _stat) \ 230 I40E_STAT(struct i40e_pf, _name, _stat) 231 #define I40E_VSI_STAT(_name, _stat) \ 232 I40E_STAT(struct i40e_vsi, _name, _stat) 233 #define I40E_VEB_STAT(_name, _stat) \ 234 I40E_STAT(struct i40e_veb, _name, _stat) 235 #define I40E_VEB_TC_STAT(_name, _stat) \ 236 I40E_STAT(struct i40e_cp_veb_tc_stats, _name, _stat) 237 #define I40E_PFC_STAT(_name, _stat) \ 238 I40E_STAT(struct i40e_pfc_stats, _name, _stat) 239 #define I40E_QUEUE_STAT(_name, _stat) \ 240 I40E_STAT(struct i40e_ring, _name, _stat) 241 242 static const struct i40e_stats i40e_gstrings_net_stats[] = { 243 I40E_NETDEV_STAT(rx_packets), 244 I40E_NETDEV_STAT(tx_packets), 245 I40E_NETDEV_STAT(rx_bytes), 246 I40E_NETDEV_STAT(tx_bytes), 247 I40E_NETDEV_STAT(rx_errors), 248 I40E_NETDEV_STAT(tx_errors), 249 I40E_NETDEV_STAT(rx_dropped), 250 I40E_NETDEV_STAT(tx_dropped), 251 I40E_NETDEV_STAT(collisions), 252 I40E_NETDEV_STAT(rx_length_errors), 253 I40E_NETDEV_STAT(rx_crc_errors), 254 }; 255 256 static const struct i40e_stats i40e_gstrings_veb_stats[] = { 257 I40E_VEB_STAT("veb.rx_bytes", stats.rx_bytes), 258 I40E_VEB_STAT("veb.tx_bytes", stats.tx_bytes), 259 I40E_VEB_STAT("veb.rx_unicast", stats.rx_unicast), 260 I40E_VEB_STAT("veb.tx_unicast", stats.tx_unicast), 261 I40E_VEB_STAT("veb.rx_multicast", stats.rx_multicast), 262 I40E_VEB_STAT("veb.tx_multicast", stats.tx_multicast), 263 I40E_VEB_STAT("veb.rx_broadcast", stats.rx_broadcast), 264 I40E_VEB_STAT("veb.tx_broadcast", stats.tx_broadcast), 265 I40E_VEB_STAT("veb.rx_discards", stats.rx_discards), 266 I40E_VEB_STAT("veb.tx_discards", stats.tx_discards), 267 I40E_VEB_STAT("veb.tx_errors", stats.tx_errors), 268 I40E_VEB_STAT("veb.rx_unknown_protocol", stats.rx_unknown_protocol), 269 }; 270 271 struct i40e_cp_veb_tc_stats { 272 u64 tc_rx_packets; 273 u64 tc_rx_bytes; 274 u64 tc_tx_packets; 275 u64 tc_tx_bytes; 276 }; 277 278 static const struct i40e_stats i40e_gstrings_veb_tc_stats[] = { 279 I40E_VEB_TC_STAT("veb.tc_%u_tx_packets", tc_tx_packets), 280 I40E_VEB_TC_STAT("veb.tc_%u_tx_bytes", tc_tx_bytes), 281 I40E_VEB_TC_STAT("veb.tc_%u_rx_packets", tc_rx_packets), 282 I40E_VEB_TC_STAT("veb.tc_%u_rx_bytes", tc_rx_bytes), 283 }; 284 285 static const struct i40e_stats i40e_gstrings_misc_stats[] = { 286 I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast), 287 I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast), 288 I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast), 289 I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast), 290 I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast), 291 I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast), 292 I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol), 293 I40E_VSI_STAT("tx_linearize", tx_linearize), 294 I40E_VSI_STAT("tx_force_wb", tx_force_wb), 295 I40E_VSI_STAT("tx_busy", tx_busy), 296 I40E_VSI_STAT("rx_alloc_fail", rx_buf_failed), 297 I40E_VSI_STAT("rx_pg_alloc_fail", rx_page_failed), 298 }; 299 300 /* These PF_STATs might look like duplicates of some NETDEV_STATs, 301 * but they are separate. This device supports Virtualization, and 302 * as such might have several netdevs supporting VMDq and FCoE going 303 * through a single port. The NETDEV_STATs are for individual netdevs 304 * seen at the top of the stack, and the PF_STATs are for the physical 305 * function at the bottom of the stack hosting those netdevs. 306 * 307 * The PF_STATs are appended to the netdev stats only when ethtool -S 308 * is queried on the base PF netdev, not on the VMDq or FCoE netdev. 309 */ 310 static const struct i40e_stats i40e_gstrings_stats[] = { 311 I40E_PF_STAT("port.rx_bytes", stats.eth.rx_bytes), 312 I40E_PF_STAT("port.tx_bytes", stats.eth.tx_bytes), 313 I40E_PF_STAT("port.rx_unicast", stats.eth.rx_unicast), 314 I40E_PF_STAT("port.tx_unicast", stats.eth.tx_unicast), 315 I40E_PF_STAT("port.rx_multicast", stats.eth.rx_multicast), 316 I40E_PF_STAT("port.tx_multicast", stats.eth.tx_multicast), 317 I40E_PF_STAT("port.rx_broadcast", stats.eth.rx_broadcast), 318 I40E_PF_STAT("port.tx_broadcast", stats.eth.tx_broadcast), 319 I40E_PF_STAT("port.tx_errors", stats.eth.tx_errors), 320 I40E_PF_STAT("port.rx_dropped", stats.eth.rx_discards), 321 I40E_PF_STAT("port.tx_dropped_link_down", stats.tx_dropped_link_down), 322 I40E_PF_STAT("port.rx_crc_errors", stats.crc_errors), 323 I40E_PF_STAT("port.illegal_bytes", stats.illegal_bytes), 324 I40E_PF_STAT("port.mac_local_faults", stats.mac_local_faults), 325 I40E_PF_STAT("port.mac_remote_faults", stats.mac_remote_faults), 326 I40E_PF_STAT("port.tx_timeout", tx_timeout_count), 327 I40E_PF_STAT("port.rx_csum_bad", hw_csum_rx_error), 328 I40E_PF_STAT("port.rx_length_errors", stats.rx_length_errors), 329 I40E_PF_STAT("port.link_xon_rx", stats.link_xon_rx), 330 I40E_PF_STAT("port.link_xoff_rx", stats.link_xoff_rx), 331 I40E_PF_STAT("port.link_xon_tx", stats.link_xon_tx), 332 I40E_PF_STAT("port.link_xoff_tx", stats.link_xoff_tx), 333 I40E_PF_STAT("port.rx_size_64", stats.rx_size_64), 334 I40E_PF_STAT("port.rx_size_127", stats.rx_size_127), 335 I40E_PF_STAT("port.rx_size_255", stats.rx_size_255), 336 I40E_PF_STAT("port.rx_size_511", stats.rx_size_511), 337 I40E_PF_STAT("port.rx_size_1023", stats.rx_size_1023), 338 I40E_PF_STAT("port.rx_size_1522", stats.rx_size_1522), 339 I40E_PF_STAT("port.rx_size_big", stats.rx_size_big), 340 I40E_PF_STAT("port.tx_size_64", stats.tx_size_64), 341 I40E_PF_STAT("port.tx_size_127", stats.tx_size_127), 342 I40E_PF_STAT("port.tx_size_255", stats.tx_size_255), 343 I40E_PF_STAT("port.tx_size_511", stats.tx_size_511), 344 I40E_PF_STAT("port.tx_size_1023", stats.tx_size_1023), 345 I40E_PF_STAT("port.tx_size_1522", stats.tx_size_1522), 346 I40E_PF_STAT("port.tx_size_big", stats.tx_size_big), 347 I40E_PF_STAT("port.rx_undersize", stats.rx_undersize), 348 I40E_PF_STAT("port.rx_fragments", stats.rx_fragments), 349 I40E_PF_STAT("port.rx_oversize", stats.rx_oversize), 350 I40E_PF_STAT("port.rx_jabber", stats.rx_jabber), 351 I40E_PF_STAT("port.VF_admin_queue_requests", vf_aq_requests), 352 I40E_PF_STAT("port.arq_overflows", arq_overflows), 353 I40E_PF_STAT("port.tx_hwtstamp_timeouts", tx_hwtstamp_timeouts), 354 I40E_PF_STAT("port.rx_hwtstamp_cleared", rx_hwtstamp_cleared), 355 I40E_PF_STAT("port.tx_hwtstamp_skipped", tx_hwtstamp_skipped), 356 I40E_PF_STAT("port.fdir_flush_cnt", fd_flush_cnt), 357 I40E_PF_STAT("port.fdir_atr_match", stats.fd_atr_match), 358 I40E_PF_STAT("port.fdir_atr_tunnel_match", stats.fd_atr_tunnel_match), 359 I40E_PF_STAT("port.fdir_atr_status", stats.fd_atr_status), 360 I40E_PF_STAT("port.fdir_sb_match", stats.fd_sb_match), 361 I40E_PF_STAT("port.fdir_sb_status", stats.fd_sb_status), 362 363 /* LPI stats */ 364 I40E_PF_STAT("port.tx_lpi_status", stats.tx_lpi_status), 365 I40E_PF_STAT("port.rx_lpi_status", stats.rx_lpi_status), 366 I40E_PF_STAT("port.tx_lpi_count", stats.tx_lpi_count), 367 I40E_PF_STAT("port.rx_lpi_count", stats.rx_lpi_count), 368 }; 369 370 struct i40e_pfc_stats { 371 u64 priority_xon_rx; 372 u64 priority_xoff_rx; 373 u64 priority_xon_tx; 374 u64 priority_xoff_tx; 375 u64 priority_xon_2_xoff; 376 }; 377 378 static const struct i40e_stats i40e_gstrings_pfc_stats[] = { 379 I40E_PFC_STAT("port.tx_priority_%u_xon_tx", priority_xon_tx), 380 I40E_PFC_STAT("port.tx_priority_%u_xoff_tx", priority_xoff_tx), 381 I40E_PFC_STAT("port.rx_priority_%u_xon_rx", priority_xon_rx), 382 I40E_PFC_STAT("port.rx_priority_%u_xoff_rx", priority_xoff_rx), 383 I40E_PFC_STAT("port.rx_priority_%u_xon_2_xoff", priority_xon_2_xoff), 384 }; 385 386 #define I40E_NETDEV_STATS_LEN ARRAY_SIZE(i40e_gstrings_net_stats) 387 388 #define I40E_MISC_STATS_LEN ARRAY_SIZE(i40e_gstrings_misc_stats) 389 390 #define I40E_VSI_STATS_LEN (I40E_NETDEV_STATS_LEN + I40E_MISC_STATS_LEN) 391 392 #define I40E_PFC_STATS_LEN (ARRAY_SIZE(i40e_gstrings_pfc_stats) * \ 393 I40E_MAX_USER_PRIORITY) 394 395 #define I40E_VEB_STATS_LEN (ARRAY_SIZE(i40e_gstrings_veb_stats) + \ 396 (ARRAY_SIZE(i40e_gstrings_veb_tc_stats) * \ 397 I40E_MAX_TRAFFIC_CLASS)) 398 399 #define I40E_GLOBAL_STATS_LEN ARRAY_SIZE(i40e_gstrings_stats) 400 401 #define I40E_PF_STATS_LEN (I40E_GLOBAL_STATS_LEN + \ 402 I40E_PFC_STATS_LEN + \ 403 I40E_VEB_STATS_LEN + \ 404 I40E_VSI_STATS_LEN) 405 406 /* Length of stats for a single queue */ 407 #define I40E_QUEUE_STATS_LEN ARRAY_SIZE(i40e_gstrings_queue_stats) 408 409 enum i40e_ethtool_test_id { 410 I40E_ETH_TEST_REG = 0, 411 I40E_ETH_TEST_EEPROM, 412 I40E_ETH_TEST_INTR, 413 I40E_ETH_TEST_LINK, 414 }; 415 416 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = { 417 "Register test (offline)", 418 "Eeprom test (offline)", 419 "Interrupt test (offline)", 420 "Link test (on/offline)" 421 }; 422 423 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN) 424 425 struct i40e_priv_flags { 426 char flag_string[ETH_GSTRING_LEN]; 427 u64 flag; 428 bool read_only; 429 }; 430 431 #define I40E_PRIV_FLAG(_name, _flag, _read_only) { \ 432 .flag_string = _name, \ 433 .flag = _flag, \ 434 .read_only = _read_only, \ 435 } 436 437 static const struct i40e_priv_flags i40e_gstrings_priv_flags[] = { 438 /* NOTE: MFP setting cannot be changed */ 439 I40E_PRIV_FLAG("MFP", I40E_FLAG_MFP_ENABLED, 1), 440 I40E_PRIV_FLAG("total-port-shutdown", 441 I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED, 1), 442 I40E_PRIV_FLAG("LinkPolling", I40E_FLAG_LINK_POLLING_ENABLED, 0), 443 I40E_PRIV_FLAG("flow-director-atr", I40E_FLAG_FD_ATR_ENABLED, 0), 444 I40E_PRIV_FLAG("veb-stats", I40E_FLAG_VEB_STATS_ENABLED, 0), 445 I40E_PRIV_FLAG("hw-atr-eviction", I40E_FLAG_HW_ATR_EVICT_ENABLED, 0), 446 I40E_PRIV_FLAG("link-down-on-close", 447 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED, 0), 448 I40E_PRIV_FLAG("legacy-rx", I40E_FLAG_LEGACY_RX, 0), 449 I40E_PRIV_FLAG("disable-source-pruning", 450 I40E_FLAG_SOURCE_PRUNING_DISABLED, 0), 451 I40E_PRIV_FLAG("disable-fw-lldp", I40E_FLAG_DISABLE_FW_LLDP, 0), 452 I40E_PRIV_FLAG("rs-fec", I40E_FLAG_RS_FEC, 0), 453 I40E_PRIV_FLAG("base-r-fec", I40E_FLAG_BASE_R_FEC, 0), 454 }; 455 456 #define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gstrings_priv_flags) 457 458 /* Private flags with a global effect, restricted to PF 0 */ 459 static const struct i40e_priv_flags i40e_gl_gstrings_priv_flags[] = { 460 I40E_PRIV_FLAG("vf-true-promisc-support", 461 I40E_FLAG_TRUE_PROMISC_SUPPORT, 0), 462 }; 463 464 #define I40E_GL_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gl_gstrings_priv_flags) 465 466 /** 467 * i40e_partition_setting_complaint - generic complaint for MFP restriction 468 * @pf: the PF struct 469 **/ 470 static void i40e_partition_setting_complaint(struct i40e_pf *pf) 471 { 472 dev_info(&pf->pdev->dev, 473 "The link settings are allowed to be changed only from the first partition of a given port. Please switch to the first partition in order to change the setting.\n"); 474 } 475 476 /** 477 * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes 478 * @pf: PF struct with phy_types 479 * @ks: ethtool link ksettings struct to fill out 480 * 481 **/ 482 static void i40e_phy_type_to_ethtool(struct i40e_pf *pf, 483 struct ethtool_link_ksettings *ks) 484 { 485 struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info; 486 u64 phy_types = pf->hw.phy.phy_types; 487 488 ethtool_link_ksettings_zero_link_mode(ks, supported); 489 ethtool_link_ksettings_zero_link_mode(ks, advertising); 490 491 if (phy_types & I40E_CAP_PHY_TYPE_SGMII) { 492 ethtool_link_ksettings_add_link_mode(ks, supported, 493 1000baseT_Full); 494 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 495 ethtool_link_ksettings_add_link_mode(ks, advertising, 496 1000baseT_Full); 497 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) { 498 ethtool_link_ksettings_add_link_mode(ks, supported, 499 100baseT_Full); 500 ethtool_link_ksettings_add_link_mode(ks, advertising, 501 100baseT_Full); 502 } 503 } 504 if (phy_types & I40E_CAP_PHY_TYPE_XAUI || 505 phy_types & I40E_CAP_PHY_TYPE_XFI || 506 phy_types & I40E_CAP_PHY_TYPE_SFI || 507 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU || 508 phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC) { 509 ethtool_link_ksettings_add_link_mode(ks, supported, 510 10000baseT_Full); 511 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 512 ethtool_link_ksettings_add_link_mode(ks, advertising, 513 10000baseT_Full); 514 } 515 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_T) { 516 ethtool_link_ksettings_add_link_mode(ks, supported, 517 10000baseT_Full); 518 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 519 ethtool_link_ksettings_add_link_mode(ks, advertising, 520 10000baseT_Full); 521 } 522 if (phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T) { 523 ethtool_link_ksettings_add_link_mode(ks, supported, 524 2500baseT_Full); 525 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB) 526 ethtool_link_ksettings_add_link_mode(ks, advertising, 527 2500baseT_Full); 528 } 529 if (phy_types & I40E_CAP_PHY_TYPE_5GBASE_T) { 530 ethtool_link_ksettings_add_link_mode(ks, supported, 531 5000baseT_Full); 532 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB) 533 ethtool_link_ksettings_add_link_mode(ks, advertising, 534 5000baseT_Full); 535 } 536 if (phy_types & I40E_CAP_PHY_TYPE_XLAUI || 537 phy_types & I40E_CAP_PHY_TYPE_XLPPI || 538 phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC) 539 ethtool_link_ksettings_add_link_mode(ks, supported, 540 40000baseCR4_Full); 541 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU || 542 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) { 543 ethtool_link_ksettings_add_link_mode(ks, supported, 544 40000baseCR4_Full); 545 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB) 546 ethtool_link_ksettings_add_link_mode(ks, advertising, 547 40000baseCR4_Full); 548 } 549 if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) { 550 ethtool_link_ksettings_add_link_mode(ks, supported, 551 100baseT_Full); 552 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 553 ethtool_link_ksettings_add_link_mode(ks, advertising, 554 100baseT_Full); 555 } 556 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T) { 557 ethtool_link_ksettings_add_link_mode(ks, supported, 558 1000baseT_Full); 559 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 560 ethtool_link_ksettings_add_link_mode(ks, advertising, 561 1000baseT_Full); 562 } 563 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4) { 564 ethtool_link_ksettings_add_link_mode(ks, supported, 565 40000baseSR4_Full); 566 ethtool_link_ksettings_add_link_mode(ks, advertising, 567 40000baseSR4_Full); 568 } 569 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4) { 570 ethtool_link_ksettings_add_link_mode(ks, supported, 571 40000baseLR4_Full); 572 ethtool_link_ksettings_add_link_mode(ks, advertising, 573 40000baseLR4_Full); 574 } 575 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) { 576 ethtool_link_ksettings_add_link_mode(ks, supported, 577 40000baseKR4_Full); 578 ethtool_link_ksettings_add_link_mode(ks, advertising, 579 40000baseKR4_Full); 580 } 581 if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) { 582 ethtool_link_ksettings_add_link_mode(ks, supported, 583 20000baseKR2_Full); 584 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB) 585 ethtool_link_ksettings_add_link_mode(ks, advertising, 586 20000baseKR2_Full); 587 } 588 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) { 589 ethtool_link_ksettings_add_link_mode(ks, supported, 590 10000baseKX4_Full); 591 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 592 ethtool_link_ksettings_add_link_mode(ks, advertising, 593 10000baseKX4_Full); 594 } 595 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR && 596 !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) { 597 ethtool_link_ksettings_add_link_mode(ks, supported, 598 10000baseKR_Full); 599 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 600 ethtool_link_ksettings_add_link_mode(ks, advertising, 601 10000baseKR_Full); 602 } 603 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX && 604 !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) { 605 ethtool_link_ksettings_add_link_mode(ks, supported, 606 1000baseKX_Full); 607 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 608 ethtool_link_ksettings_add_link_mode(ks, advertising, 609 1000baseKX_Full); 610 } 611 /* need to add 25G PHY types */ 612 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR) { 613 ethtool_link_ksettings_add_link_mode(ks, supported, 614 25000baseKR_Full); 615 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 616 ethtool_link_ksettings_add_link_mode(ks, advertising, 617 25000baseKR_Full); 618 } 619 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR) { 620 ethtool_link_ksettings_add_link_mode(ks, supported, 621 25000baseCR_Full); 622 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 623 ethtool_link_ksettings_add_link_mode(ks, advertising, 624 25000baseCR_Full); 625 } 626 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 627 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR) { 628 ethtool_link_ksettings_add_link_mode(ks, supported, 629 25000baseSR_Full); 630 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 631 ethtool_link_ksettings_add_link_mode(ks, advertising, 632 25000baseSR_Full); 633 } 634 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC || 635 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) { 636 ethtool_link_ksettings_add_link_mode(ks, supported, 637 25000baseCR_Full); 638 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 639 ethtool_link_ksettings_add_link_mode(ks, advertising, 640 25000baseCR_Full); 641 } 642 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR || 643 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR || 644 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 645 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR || 646 phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC || 647 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) { 648 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); 649 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); 650 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); 651 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) { 652 ethtool_link_ksettings_add_link_mode(ks, advertising, 653 FEC_NONE); 654 ethtool_link_ksettings_add_link_mode(ks, advertising, 655 FEC_RS); 656 ethtool_link_ksettings_add_link_mode(ks, advertising, 657 FEC_BASER); 658 } 659 } 660 /* need to add new 10G PHY types */ 661 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 || 662 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU) { 663 ethtool_link_ksettings_add_link_mode(ks, supported, 664 10000baseCR_Full); 665 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 666 ethtool_link_ksettings_add_link_mode(ks, advertising, 667 10000baseCR_Full); 668 } 669 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR) { 670 ethtool_link_ksettings_add_link_mode(ks, supported, 671 10000baseSR_Full); 672 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 673 ethtool_link_ksettings_add_link_mode(ks, advertising, 674 10000baseSR_Full); 675 } 676 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) { 677 ethtool_link_ksettings_add_link_mode(ks, supported, 678 10000baseLR_Full); 679 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 680 ethtool_link_ksettings_add_link_mode(ks, advertising, 681 10000baseLR_Full); 682 } 683 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX || 684 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX || 685 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) { 686 ethtool_link_ksettings_add_link_mode(ks, supported, 687 1000baseX_Full); 688 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 689 ethtool_link_ksettings_add_link_mode(ks, advertising, 690 1000baseX_Full); 691 } 692 /* Autoneg PHY types */ 693 if (phy_types & I40E_CAP_PHY_TYPE_SGMII || 694 phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4 || 695 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU || 696 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4 || 697 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 698 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR || 699 phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR || 700 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR || 701 phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2 || 702 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR || 703 phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR || 704 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4 || 705 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR || 706 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU || 707 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 || 708 phy_types & I40E_CAP_PHY_TYPE_10GBASE_T || 709 phy_types & I40E_CAP_PHY_TYPE_5GBASE_T || 710 phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T || 711 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL || 712 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T || 713 phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX || 714 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX || 715 phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX || 716 phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) { 717 ethtool_link_ksettings_add_link_mode(ks, supported, 718 Autoneg); 719 ethtool_link_ksettings_add_link_mode(ks, advertising, 720 Autoneg); 721 } 722 } 723 724 /** 725 * i40e_get_settings_link_up_fec - Get the FEC mode encoding from mask 726 * @req_fec_info: mask request FEC info 727 * @ks: ethtool ksettings to fill in 728 **/ 729 static void i40e_get_settings_link_up_fec(u8 req_fec_info, 730 struct ethtool_link_ksettings *ks) 731 { 732 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); 733 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); 734 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); 735 736 if ((I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) && 737 (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info)) { 738 ethtool_link_ksettings_add_link_mode(ks, advertising, 739 FEC_NONE); 740 ethtool_link_ksettings_add_link_mode(ks, advertising, 741 FEC_BASER); 742 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); 743 } else if (I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) { 744 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); 745 } else if (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info) { 746 ethtool_link_ksettings_add_link_mode(ks, advertising, 747 FEC_BASER); 748 } else { 749 ethtool_link_ksettings_add_link_mode(ks, advertising, 750 FEC_NONE); 751 } 752 } 753 754 /** 755 * i40e_get_settings_link_up - Get the Link settings for when link is up 756 * @hw: hw structure 757 * @ks: ethtool ksettings to fill in 758 * @netdev: network interface device structure 759 * @pf: pointer to physical function struct 760 **/ 761 static void i40e_get_settings_link_up(struct i40e_hw *hw, 762 struct ethtool_link_ksettings *ks, 763 struct net_device *netdev, 764 struct i40e_pf *pf) 765 { 766 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 767 struct ethtool_link_ksettings cap_ksettings; 768 u32 link_speed = hw_link_info->link_speed; 769 770 /* Initialize supported and advertised settings based on phy settings */ 771 switch (hw_link_info->phy_type) { 772 case I40E_PHY_TYPE_40GBASE_CR4: 773 case I40E_PHY_TYPE_40GBASE_CR4_CU: 774 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 775 ethtool_link_ksettings_add_link_mode(ks, supported, 776 40000baseCR4_Full); 777 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 778 ethtool_link_ksettings_add_link_mode(ks, advertising, 779 40000baseCR4_Full); 780 break; 781 case I40E_PHY_TYPE_XLAUI: 782 case I40E_PHY_TYPE_XLPPI: 783 case I40E_PHY_TYPE_40GBASE_AOC: 784 ethtool_link_ksettings_add_link_mode(ks, supported, 785 40000baseCR4_Full); 786 ethtool_link_ksettings_add_link_mode(ks, advertising, 787 40000baseCR4_Full); 788 break; 789 case I40E_PHY_TYPE_40GBASE_SR4: 790 ethtool_link_ksettings_add_link_mode(ks, supported, 791 40000baseSR4_Full); 792 ethtool_link_ksettings_add_link_mode(ks, advertising, 793 40000baseSR4_Full); 794 break; 795 case I40E_PHY_TYPE_40GBASE_LR4: 796 ethtool_link_ksettings_add_link_mode(ks, supported, 797 40000baseLR4_Full); 798 ethtool_link_ksettings_add_link_mode(ks, advertising, 799 40000baseLR4_Full); 800 break; 801 case I40E_PHY_TYPE_25GBASE_SR: 802 case I40E_PHY_TYPE_25GBASE_LR: 803 case I40E_PHY_TYPE_10GBASE_SR: 804 case I40E_PHY_TYPE_10GBASE_LR: 805 case I40E_PHY_TYPE_1000BASE_SX: 806 case I40E_PHY_TYPE_1000BASE_LX: 807 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 808 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 809 ethtool_link_ksettings_add_link_mode(ks, supported, 810 25000baseSR_Full); 811 ethtool_link_ksettings_add_link_mode(ks, advertising, 812 25000baseSR_Full); 813 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 814 ethtool_link_ksettings_add_link_mode(ks, supported, 815 10000baseSR_Full); 816 ethtool_link_ksettings_add_link_mode(ks, advertising, 817 10000baseSR_Full); 818 ethtool_link_ksettings_add_link_mode(ks, supported, 819 10000baseLR_Full); 820 ethtool_link_ksettings_add_link_mode(ks, advertising, 821 10000baseLR_Full); 822 ethtool_link_ksettings_add_link_mode(ks, supported, 823 1000baseX_Full); 824 ethtool_link_ksettings_add_link_mode(ks, advertising, 825 1000baseX_Full); 826 ethtool_link_ksettings_add_link_mode(ks, supported, 827 10000baseT_Full); 828 if (hw_link_info->module_type[2] & 829 I40E_MODULE_TYPE_1000BASE_SX || 830 hw_link_info->module_type[2] & 831 I40E_MODULE_TYPE_1000BASE_LX) { 832 ethtool_link_ksettings_add_link_mode(ks, supported, 833 1000baseT_Full); 834 if (hw_link_info->requested_speeds & 835 I40E_LINK_SPEED_1GB) 836 ethtool_link_ksettings_add_link_mode( 837 ks, advertising, 1000baseT_Full); 838 } 839 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 840 ethtool_link_ksettings_add_link_mode(ks, advertising, 841 10000baseT_Full); 842 break; 843 case I40E_PHY_TYPE_10GBASE_T: 844 case I40E_PHY_TYPE_5GBASE_T_LINK_STATUS: 845 case I40E_PHY_TYPE_2_5GBASE_T_LINK_STATUS: 846 case I40E_PHY_TYPE_1000BASE_T: 847 case I40E_PHY_TYPE_100BASE_TX: 848 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 849 ethtool_link_ksettings_add_link_mode(ks, supported, 850 10000baseT_Full); 851 ethtool_link_ksettings_add_link_mode(ks, supported, 852 5000baseT_Full); 853 ethtool_link_ksettings_add_link_mode(ks, supported, 854 2500baseT_Full); 855 ethtool_link_ksettings_add_link_mode(ks, supported, 856 1000baseT_Full); 857 ethtool_link_ksettings_add_link_mode(ks, supported, 858 100baseT_Full); 859 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 860 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 861 ethtool_link_ksettings_add_link_mode(ks, advertising, 862 10000baseT_Full); 863 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB) 864 ethtool_link_ksettings_add_link_mode(ks, advertising, 865 5000baseT_Full); 866 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB) 867 ethtool_link_ksettings_add_link_mode(ks, advertising, 868 2500baseT_Full); 869 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 870 ethtool_link_ksettings_add_link_mode(ks, advertising, 871 1000baseT_Full); 872 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 873 ethtool_link_ksettings_add_link_mode(ks, advertising, 874 100baseT_Full); 875 break; 876 case I40E_PHY_TYPE_1000BASE_T_OPTICAL: 877 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 878 ethtool_link_ksettings_add_link_mode(ks, supported, 879 1000baseT_Full); 880 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 881 ethtool_link_ksettings_add_link_mode(ks, advertising, 882 1000baseT_Full); 883 break; 884 case I40E_PHY_TYPE_10GBASE_CR1_CU: 885 case I40E_PHY_TYPE_10GBASE_CR1: 886 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 887 ethtool_link_ksettings_add_link_mode(ks, supported, 888 10000baseT_Full); 889 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 890 ethtool_link_ksettings_add_link_mode(ks, advertising, 891 10000baseT_Full); 892 break; 893 case I40E_PHY_TYPE_XAUI: 894 case I40E_PHY_TYPE_XFI: 895 case I40E_PHY_TYPE_SFI: 896 case I40E_PHY_TYPE_10GBASE_SFPP_CU: 897 case I40E_PHY_TYPE_10GBASE_AOC: 898 ethtool_link_ksettings_add_link_mode(ks, supported, 899 10000baseT_Full); 900 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 901 ethtool_link_ksettings_add_link_mode(ks, advertising, 902 10000baseT_Full); 903 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 904 break; 905 case I40E_PHY_TYPE_SGMII: 906 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 907 ethtool_link_ksettings_add_link_mode(ks, supported, 908 1000baseT_Full); 909 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 910 ethtool_link_ksettings_add_link_mode(ks, advertising, 911 1000baseT_Full); 912 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) { 913 ethtool_link_ksettings_add_link_mode(ks, supported, 914 100baseT_Full); 915 if (hw_link_info->requested_speeds & 916 I40E_LINK_SPEED_100MB) 917 ethtool_link_ksettings_add_link_mode( 918 ks, advertising, 100baseT_Full); 919 } 920 break; 921 case I40E_PHY_TYPE_40GBASE_KR4: 922 case I40E_PHY_TYPE_25GBASE_KR: 923 case I40E_PHY_TYPE_20GBASE_KR2: 924 case I40E_PHY_TYPE_10GBASE_KR: 925 case I40E_PHY_TYPE_10GBASE_KX4: 926 case I40E_PHY_TYPE_1000BASE_KX: 927 ethtool_link_ksettings_add_link_mode(ks, supported, 928 40000baseKR4_Full); 929 ethtool_link_ksettings_add_link_mode(ks, supported, 930 25000baseKR_Full); 931 ethtool_link_ksettings_add_link_mode(ks, supported, 932 20000baseKR2_Full); 933 ethtool_link_ksettings_add_link_mode(ks, supported, 934 10000baseKR_Full); 935 ethtool_link_ksettings_add_link_mode(ks, supported, 936 10000baseKX4_Full); 937 ethtool_link_ksettings_add_link_mode(ks, supported, 938 1000baseKX_Full); 939 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 940 ethtool_link_ksettings_add_link_mode(ks, advertising, 941 40000baseKR4_Full); 942 ethtool_link_ksettings_add_link_mode(ks, advertising, 943 25000baseKR_Full); 944 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 945 ethtool_link_ksettings_add_link_mode(ks, advertising, 946 20000baseKR2_Full); 947 ethtool_link_ksettings_add_link_mode(ks, advertising, 948 10000baseKR_Full); 949 ethtool_link_ksettings_add_link_mode(ks, advertising, 950 10000baseKX4_Full); 951 ethtool_link_ksettings_add_link_mode(ks, advertising, 952 1000baseKX_Full); 953 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 954 break; 955 case I40E_PHY_TYPE_25GBASE_CR: 956 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 957 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 958 ethtool_link_ksettings_add_link_mode(ks, supported, 959 25000baseCR_Full); 960 ethtool_link_ksettings_add_link_mode(ks, advertising, 961 25000baseCR_Full); 962 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 963 964 break; 965 case I40E_PHY_TYPE_25GBASE_AOC: 966 case I40E_PHY_TYPE_25GBASE_ACC: 967 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 968 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 969 ethtool_link_ksettings_add_link_mode(ks, supported, 970 25000baseCR_Full); 971 ethtool_link_ksettings_add_link_mode(ks, advertising, 972 25000baseCR_Full); 973 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 974 975 ethtool_link_ksettings_add_link_mode(ks, supported, 976 10000baseCR_Full); 977 ethtool_link_ksettings_add_link_mode(ks, advertising, 978 10000baseCR_Full); 979 break; 980 default: 981 /* if we got here and link is up something bad is afoot */ 982 netdev_info(netdev, 983 "WARNING: Link is up but PHY type 0x%x is not recognized, or incorrect cable is in use\n", 984 hw_link_info->phy_type); 985 } 986 987 /* Now that we've worked out everything that could be supported by the 988 * current PHY type, get what is supported by the NVM and intersect 989 * them to get what is truly supported 990 */ 991 memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings)); 992 i40e_phy_type_to_ethtool(pf, &cap_ksettings); 993 ethtool_intersect_link_masks(ks, &cap_ksettings); 994 995 /* Set speed and duplex */ 996 switch (link_speed) { 997 case I40E_LINK_SPEED_40GB: 998 ks->base.speed = SPEED_40000; 999 break; 1000 case I40E_LINK_SPEED_25GB: 1001 ks->base.speed = SPEED_25000; 1002 break; 1003 case I40E_LINK_SPEED_20GB: 1004 ks->base.speed = SPEED_20000; 1005 break; 1006 case I40E_LINK_SPEED_10GB: 1007 ks->base.speed = SPEED_10000; 1008 break; 1009 case I40E_LINK_SPEED_5GB: 1010 ks->base.speed = SPEED_5000; 1011 break; 1012 case I40E_LINK_SPEED_2_5GB: 1013 ks->base.speed = SPEED_2500; 1014 break; 1015 case I40E_LINK_SPEED_1GB: 1016 ks->base.speed = SPEED_1000; 1017 break; 1018 case I40E_LINK_SPEED_100MB: 1019 ks->base.speed = SPEED_100; 1020 break; 1021 default: 1022 ks->base.speed = SPEED_UNKNOWN; 1023 break; 1024 } 1025 ks->base.duplex = DUPLEX_FULL; 1026 } 1027 1028 /** 1029 * i40e_get_settings_link_down - Get the Link settings for when link is down 1030 * @hw: hw structure 1031 * @ks: ethtool ksettings to fill in 1032 * @pf: pointer to physical function struct 1033 * 1034 * Reports link settings that can be determined when link is down 1035 **/ 1036 static void i40e_get_settings_link_down(struct i40e_hw *hw, 1037 struct ethtool_link_ksettings *ks, 1038 struct i40e_pf *pf) 1039 { 1040 /* link is down and the driver needs to fall back on 1041 * supported phy types to figure out what info to display 1042 */ 1043 i40e_phy_type_to_ethtool(pf, ks); 1044 1045 /* With no link speed and duplex are unknown */ 1046 ks->base.speed = SPEED_UNKNOWN; 1047 ks->base.duplex = DUPLEX_UNKNOWN; 1048 } 1049 1050 /** 1051 * i40e_get_link_ksettings - Get Link Speed and Duplex settings 1052 * @netdev: network interface device structure 1053 * @ks: ethtool ksettings 1054 * 1055 * Reports speed/duplex settings based on media_type 1056 **/ 1057 static int i40e_get_link_ksettings(struct net_device *netdev, 1058 struct ethtool_link_ksettings *ks) 1059 { 1060 struct i40e_netdev_priv *np = netdev_priv(netdev); 1061 struct i40e_pf *pf = np->vsi->back; 1062 struct i40e_hw *hw = &pf->hw; 1063 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1064 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 1065 1066 ethtool_link_ksettings_zero_link_mode(ks, supported); 1067 ethtool_link_ksettings_zero_link_mode(ks, advertising); 1068 1069 if (link_up) 1070 i40e_get_settings_link_up(hw, ks, netdev, pf); 1071 else 1072 i40e_get_settings_link_down(hw, ks, pf); 1073 1074 /* Now set the settings that don't rely on link being up/down */ 1075 /* Set autoneg settings */ 1076 ks->base.autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 1077 AUTONEG_ENABLE : AUTONEG_DISABLE); 1078 1079 /* Set media type settings */ 1080 switch (hw->phy.media_type) { 1081 case I40E_MEDIA_TYPE_BACKPLANE: 1082 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 1083 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane); 1084 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 1085 ethtool_link_ksettings_add_link_mode(ks, advertising, 1086 Backplane); 1087 ks->base.port = PORT_NONE; 1088 break; 1089 case I40E_MEDIA_TYPE_BASET: 1090 ethtool_link_ksettings_add_link_mode(ks, supported, TP); 1091 ethtool_link_ksettings_add_link_mode(ks, advertising, TP); 1092 ks->base.port = PORT_TP; 1093 break; 1094 case I40E_MEDIA_TYPE_DA: 1095 case I40E_MEDIA_TYPE_CX4: 1096 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1097 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 1098 ks->base.port = PORT_DA; 1099 break; 1100 case I40E_MEDIA_TYPE_FIBER: 1101 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1102 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 1103 ks->base.port = PORT_FIBRE; 1104 break; 1105 case I40E_MEDIA_TYPE_UNKNOWN: 1106 default: 1107 ks->base.port = PORT_OTHER; 1108 break; 1109 } 1110 1111 /* Set flow control settings */ 1112 ethtool_link_ksettings_add_link_mode(ks, supported, Pause); 1113 ethtool_link_ksettings_add_link_mode(ks, supported, Asym_Pause); 1114 1115 switch (hw->fc.requested_mode) { 1116 case I40E_FC_FULL: 1117 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1118 break; 1119 case I40E_FC_TX_PAUSE: 1120 ethtool_link_ksettings_add_link_mode(ks, advertising, 1121 Asym_Pause); 1122 break; 1123 case I40E_FC_RX_PAUSE: 1124 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1125 ethtool_link_ksettings_add_link_mode(ks, advertising, 1126 Asym_Pause); 1127 break; 1128 default: 1129 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause); 1130 ethtool_link_ksettings_del_link_mode(ks, advertising, 1131 Asym_Pause); 1132 break; 1133 } 1134 1135 return 0; 1136 } 1137 1138 /** 1139 * i40e_set_link_ksettings - Set Speed and Duplex 1140 * @netdev: network interface device structure 1141 * @ks: ethtool ksettings 1142 * 1143 * Set speed/duplex per media_types advertised/forced 1144 **/ 1145 static int i40e_set_link_ksettings(struct net_device *netdev, 1146 const struct ethtool_link_ksettings *ks) 1147 { 1148 struct i40e_netdev_priv *np = netdev_priv(netdev); 1149 struct i40e_aq_get_phy_abilities_resp abilities; 1150 struct ethtool_link_ksettings safe_ks; 1151 struct ethtool_link_ksettings copy_ks; 1152 struct i40e_aq_set_phy_config config; 1153 struct i40e_pf *pf = np->vsi->back; 1154 struct i40e_vsi *vsi = np->vsi; 1155 struct i40e_hw *hw = &pf->hw; 1156 bool autoneg_changed = false; 1157 i40e_status status = 0; 1158 int timeout = 50; 1159 int err = 0; 1160 u8 autoneg; 1161 1162 /* Changing port settings is not supported if this isn't the 1163 * port's controlling PF 1164 */ 1165 if (hw->partition_id != 1) { 1166 i40e_partition_setting_complaint(pf); 1167 return -EOPNOTSUPP; 1168 } 1169 if (vsi != pf->vsi[pf->lan_vsi]) 1170 return -EOPNOTSUPP; 1171 if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET && 1172 hw->phy.media_type != I40E_MEDIA_TYPE_FIBER && 1173 hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE && 1174 hw->phy.media_type != I40E_MEDIA_TYPE_DA && 1175 hw->phy.link_info.link_info & I40E_AQ_LINK_UP) 1176 return -EOPNOTSUPP; 1177 if (hw->device_id == I40E_DEV_ID_KX_B || 1178 hw->device_id == I40E_DEV_ID_KX_C || 1179 hw->device_id == I40E_DEV_ID_20G_KR2 || 1180 hw->device_id == I40E_DEV_ID_20G_KR2_A || 1181 hw->device_id == I40E_DEV_ID_25G_B || 1182 hw->device_id == I40E_DEV_ID_KX_X722) { 1183 netdev_info(netdev, "Changing settings is not supported on backplane.\n"); 1184 return -EOPNOTSUPP; 1185 } 1186 1187 /* copy the ksettings to copy_ks to avoid modifying the origin */ 1188 memcpy(©_ks, ks, sizeof(struct ethtool_link_ksettings)); 1189 1190 /* save autoneg out of ksettings */ 1191 autoneg = copy_ks.base.autoneg; 1192 1193 /* get our own copy of the bits to check against */ 1194 memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings)); 1195 safe_ks.base.cmd = copy_ks.base.cmd; 1196 safe_ks.base.link_mode_masks_nwords = 1197 copy_ks.base.link_mode_masks_nwords; 1198 i40e_get_link_ksettings(netdev, &safe_ks); 1199 1200 /* Get link modes supported by hardware and check against modes 1201 * requested by the user. Return an error if unsupported mode was set. 1202 */ 1203 if (!bitmap_subset(copy_ks.link_modes.advertising, 1204 safe_ks.link_modes.supported, 1205 __ETHTOOL_LINK_MODE_MASK_NBITS)) 1206 return -EINVAL; 1207 1208 /* set autoneg back to what it currently is */ 1209 copy_ks.base.autoneg = safe_ks.base.autoneg; 1210 1211 /* If copy_ks.base and safe_ks.base are not the same now, then they are 1212 * trying to set something that we do not support. 1213 */ 1214 if (memcmp(©_ks.base, &safe_ks.base, 1215 sizeof(struct ethtool_link_settings))) 1216 return -EOPNOTSUPP; 1217 1218 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { 1219 timeout--; 1220 if (!timeout) 1221 return -EBUSY; 1222 usleep_range(1000, 2000); 1223 } 1224 1225 /* Get the current phy config */ 1226 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1227 NULL); 1228 if (status) { 1229 err = -EAGAIN; 1230 goto done; 1231 } 1232 1233 /* Copy abilities to config in case autoneg is not 1234 * set below 1235 */ 1236 memset(&config, 0, sizeof(struct i40e_aq_set_phy_config)); 1237 config.abilities = abilities.abilities; 1238 1239 /* Check autoneg */ 1240 if (autoneg == AUTONEG_ENABLE) { 1241 /* If autoneg was not already enabled */ 1242 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) { 1243 /* If autoneg is not supported, return error */ 1244 if (!ethtool_link_ksettings_test_link_mode(&safe_ks, 1245 supported, 1246 Autoneg)) { 1247 netdev_info(netdev, "Autoneg not supported on this phy\n"); 1248 err = -EINVAL; 1249 goto done; 1250 } 1251 /* Autoneg is allowed to change */ 1252 config.abilities = abilities.abilities | 1253 I40E_AQ_PHY_ENABLE_AN; 1254 autoneg_changed = true; 1255 } 1256 } else { 1257 /* If autoneg is currently enabled */ 1258 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) { 1259 /* If autoneg is supported 10GBASE_T is the only PHY 1260 * that can disable it, so otherwise return error 1261 */ 1262 if (ethtool_link_ksettings_test_link_mode(&safe_ks, 1263 supported, 1264 Autoneg) && 1265 hw->phy.media_type != I40E_MEDIA_TYPE_BASET) { 1266 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n"); 1267 err = -EINVAL; 1268 goto done; 1269 } 1270 /* Autoneg is allowed to change */ 1271 config.abilities = abilities.abilities & 1272 ~I40E_AQ_PHY_ENABLE_AN; 1273 autoneg_changed = true; 1274 } 1275 } 1276 1277 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1278 100baseT_Full)) 1279 config.link_speed |= I40E_LINK_SPEED_100MB; 1280 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1281 1000baseT_Full) || 1282 ethtool_link_ksettings_test_link_mode(ks, advertising, 1283 1000baseX_Full) || 1284 ethtool_link_ksettings_test_link_mode(ks, advertising, 1285 1000baseKX_Full)) 1286 config.link_speed |= I40E_LINK_SPEED_1GB; 1287 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1288 10000baseT_Full) || 1289 ethtool_link_ksettings_test_link_mode(ks, advertising, 1290 10000baseKX4_Full) || 1291 ethtool_link_ksettings_test_link_mode(ks, advertising, 1292 10000baseKR_Full) || 1293 ethtool_link_ksettings_test_link_mode(ks, advertising, 1294 10000baseCR_Full) || 1295 ethtool_link_ksettings_test_link_mode(ks, advertising, 1296 10000baseSR_Full) || 1297 ethtool_link_ksettings_test_link_mode(ks, advertising, 1298 10000baseLR_Full)) 1299 config.link_speed |= I40E_LINK_SPEED_10GB; 1300 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1301 2500baseT_Full)) 1302 config.link_speed |= I40E_LINK_SPEED_2_5GB; 1303 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1304 5000baseT_Full)) 1305 config.link_speed |= I40E_LINK_SPEED_5GB; 1306 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1307 20000baseKR2_Full)) 1308 config.link_speed |= I40E_LINK_SPEED_20GB; 1309 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1310 25000baseCR_Full) || 1311 ethtool_link_ksettings_test_link_mode(ks, advertising, 1312 25000baseKR_Full) || 1313 ethtool_link_ksettings_test_link_mode(ks, advertising, 1314 25000baseSR_Full)) 1315 config.link_speed |= I40E_LINK_SPEED_25GB; 1316 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1317 40000baseKR4_Full) || 1318 ethtool_link_ksettings_test_link_mode(ks, advertising, 1319 40000baseCR4_Full) || 1320 ethtool_link_ksettings_test_link_mode(ks, advertising, 1321 40000baseSR4_Full) || 1322 ethtool_link_ksettings_test_link_mode(ks, advertising, 1323 40000baseLR4_Full)) 1324 config.link_speed |= I40E_LINK_SPEED_40GB; 1325 1326 /* If speed didn't get set, set it to what it currently is. 1327 * This is needed because if advertise is 0 (as it is when autoneg 1328 * is disabled) then speed won't get set. 1329 */ 1330 if (!config.link_speed) 1331 config.link_speed = abilities.link_speed; 1332 if (autoneg_changed || abilities.link_speed != config.link_speed) { 1333 /* copy over the rest of the abilities */ 1334 config.phy_type = abilities.phy_type; 1335 config.phy_type_ext = abilities.phy_type_ext; 1336 config.eee_capability = abilities.eee_capability; 1337 config.eeer = abilities.eeer_val; 1338 config.low_power_ctrl = abilities.d3_lpan; 1339 config.fec_config = abilities.fec_cfg_curr_mod_ext_info & 1340 I40E_AQ_PHY_FEC_CONFIG_MASK; 1341 1342 /* save the requested speeds */ 1343 hw->phy.link_info.requested_speeds = config.link_speed; 1344 /* set link and auto negotiation so changes take effect */ 1345 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 1346 /* If link is up put link down */ 1347 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) { 1348 /* Tell the OS link is going down, the link will go 1349 * back up when fw says it is ready asynchronously 1350 */ 1351 i40e_print_link_message(vsi, false); 1352 netif_carrier_off(netdev); 1353 netif_tx_stop_all_queues(netdev); 1354 } 1355 1356 /* make the aq call */ 1357 status = i40e_aq_set_phy_config(hw, &config, NULL); 1358 if (status) { 1359 netdev_info(netdev, 1360 "Set phy config failed, err %s aq_err %s\n", 1361 i40e_stat_str(hw, status), 1362 i40e_aq_str(hw, hw->aq.asq_last_status)); 1363 err = -EAGAIN; 1364 goto done; 1365 } 1366 1367 status = i40e_update_link_info(hw); 1368 if (status) 1369 netdev_dbg(netdev, 1370 "Updating link info failed with err %s aq_err %s\n", 1371 i40e_stat_str(hw, status), 1372 i40e_aq_str(hw, hw->aq.asq_last_status)); 1373 1374 } else { 1375 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n"); 1376 } 1377 1378 done: 1379 clear_bit(__I40E_CONFIG_BUSY, pf->state); 1380 1381 return err; 1382 } 1383 1384 static int i40e_set_fec_cfg(struct net_device *netdev, u8 fec_cfg) 1385 { 1386 struct i40e_netdev_priv *np = netdev_priv(netdev); 1387 struct i40e_aq_get_phy_abilities_resp abilities; 1388 struct i40e_pf *pf = np->vsi->back; 1389 struct i40e_hw *hw = &pf->hw; 1390 i40e_status status = 0; 1391 u32 flags = 0; 1392 int err = 0; 1393 1394 flags = READ_ONCE(pf->flags); 1395 i40e_set_fec_in_flags(fec_cfg, &flags); 1396 1397 /* Get the current phy config */ 1398 memset(&abilities, 0, sizeof(abilities)); 1399 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1400 NULL); 1401 if (status) { 1402 err = -EAGAIN; 1403 goto done; 1404 } 1405 1406 if (abilities.fec_cfg_curr_mod_ext_info != fec_cfg) { 1407 struct i40e_aq_set_phy_config config; 1408 1409 memset(&config, 0, sizeof(config)); 1410 config.phy_type = abilities.phy_type; 1411 config.abilities = abilities.abilities | 1412 I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 1413 config.phy_type_ext = abilities.phy_type_ext; 1414 config.link_speed = abilities.link_speed; 1415 config.eee_capability = abilities.eee_capability; 1416 config.eeer = abilities.eeer_val; 1417 config.low_power_ctrl = abilities.d3_lpan; 1418 config.fec_config = fec_cfg & I40E_AQ_PHY_FEC_CONFIG_MASK; 1419 status = i40e_aq_set_phy_config(hw, &config, NULL); 1420 if (status) { 1421 netdev_info(netdev, 1422 "Set phy config failed, err %s aq_err %s\n", 1423 i40e_stat_str(hw, status), 1424 i40e_aq_str(hw, hw->aq.asq_last_status)); 1425 err = -EAGAIN; 1426 goto done; 1427 } 1428 pf->flags = flags; 1429 status = i40e_update_link_info(hw); 1430 if (status) 1431 /* debug level message only due to relation to the link 1432 * itself rather than to the FEC settings 1433 * (e.g. no physical connection etc.) 1434 */ 1435 netdev_dbg(netdev, 1436 "Updating link info failed with err %s aq_err %s\n", 1437 i40e_stat_str(hw, status), 1438 i40e_aq_str(hw, hw->aq.asq_last_status)); 1439 } 1440 1441 done: 1442 return err; 1443 } 1444 1445 static int i40e_get_fec_param(struct net_device *netdev, 1446 struct ethtool_fecparam *fecparam) 1447 { 1448 struct i40e_netdev_priv *np = netdev_priv(netdev); 1449 struct i40e_aq_get_phy_abilities_resp abilities; 1450 struct i40e_pf *pf = np->vsi->back; 1451 struct i40e_hw *hw = &pf->hw; 1452 i40e_status status = 0; 1453 int err = 0; 1454 u8 fec_cfg; 1455 1456 /* Get the current phy config */ 1457 memset(&abilities, 0, sizeof(abilities)); 1458 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1459 NULL); 1460 if (status) { 1461 err = -EAGAIN; 1462 goto done; 1463 } 1464 1465 fecparam->fec = 0; 1466 fec_cfg = abilities.fec_cfg_curr_mod_ext_info; 1467 if (fec_cfg & I40E_AQ_SET_FEC_AUTO) 1468 fecparam->fec |= ETHTOOL_FEC_AUTO; 1469 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_RS | 1470 I40E_AQ_SET_FEC_ABILITY_RS)) 1471 fecparam->fec |= ETHTOOL_FEC_RS; 1472 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_KR | 1473 I40E_AQ_SET_FEC_ABILITY_KR)) 1474 fecparam->fec |= ETHTOOL_FEC_BASER; 1475 if (fec_cfg == 0) 1476 fecparam->fec |= ETHTOOL_FEC_OFF; 1477 1478 if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_KR_ENA) 1479 fecparam->active_fec = ETHTOOL_FEC_BASER; 1480 else if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_RS_ENA) 1481 fecparam->active_fec = ETHTOOL_FEC_RS; 1482 else 1483 fecparam->active_fec = ETHTOOL_FEC_OFF; 1484 done: 1485 return err; 1486 } 1487 1488 static int i40e_set_fec_param(struct net_device *netdev, 1489 struct ethtool_fecparam *fecparam) 1490 { 1491 struct i40e_netdev_priv *np = netdev_priv(netdev); 1492 struct i40e_pf *pf = np->vsi->back; 1493 struct i40e_hw *hw = &pf->hw; 1494 u8 fec_cfg = 0; 1495 1496 if (hw->device_id != I40E_DEV_ID_25G_SFP28 && 1497 hw->device_id != I40E_DEV_ID_25G_B && 1498 hw->device_id != I40E_DEV_ID_KX_X722) 1499 return -EPERM; 1500 1501 if (hw->mac.type == I40E_MAC_X722 && 1502 !(hw->flags & I40E_HW_FLAG_X722_FEC_REQUEST_CAPABLE)) { 1503 netdev_err(netdev, "Setting FEC encoding not supported by firmware. Please update the NVM image.\n"); 1504 return -EOPNOTSUPP; 1505 } 1506 1507 switch (fecparam->fec) { 1508 case ETHTOOL_FEC_AUTO: 1509 fec_cfg = I40E_AQ_SET_FEC_AUTO; 1510 break; 1511 case ETHTOOL_FEC_RS: 1512 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS | 1513 I40E_AQ_SET_FEC_ABILITY_RS); 1514 break; 1515 case ETHTOOL_FEC_BASER: 1516 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR | 1517 I40E_AQ_SET_FEC_ABILITY_KR); 1518 break; 1519 case ETHTOOL_FEC_OFF: 1520 case ETHTOOL_FEC_NONE: 1521 fec_cfg = 0; 1522 break; 1523 default: 1524 dev_warn(&pf->pdev->dev, "Unsupported FEC mode: %d", 1525 fecparam->fec); 1526 return -EINVAL; 1527 } 1528 1529 return i40e_set_fec_cfg(netdev, fec_cfg); 1530 } 1531 1532 static int i40e_nway_reset(struct net_device *netdev) 1533 { 1534 /* restart autonegotiation */ 1535 struct i40e_netdev_priv *np = netdev_priv(netdev); 1536 struct i40e_pf *pf = np->vsi->back; 1537 struct i40e_hw *hw = &pf->hw; 1538 bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP; 1539 i40e_status ret = 0; 1540 1541 ret = i40e_aq_set_link_restart_an(hw, link_up, NULL); 1542 if (ret) { 1543 netdev_info(netdev, "link restart failed, err %s aq_err %s\n", 1544 i40e_stat_str(hw, ret), 1545 i40e_aq_str(hw, hw->aq.asq_last_status)); 1546 return -EIO; 1547 } 1548 1549 return 0; 1550 } 1551 1552 /** 1553 * i40e_get_pauseparam - Get Flow Control status 1554 * @netdev: netdevice structure 1555 * @pause: buffer to return pause parameters 1556 * 1557 * Return tx/rx-pause status 1558 **/ 1559 static void i40e_get_pauseparam(struct net_device *netdev, 1560 struct ethtool_pauseparam *pause) 1561 { 1562 struct i40e_netdev_priv *np = netdev_priv(netdev); 1563 struct i40e_pf *pf = np->vsi->back; 1564 struct i40e_hw *hw = &pf->hw; 1565 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1566 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 1567 1568 pause->autoneg = 1569 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 1570 AUTONEG_ENABLE : AUTONEG_DISABLE); 1571 1572 /* PFC enabled so report LFC as off */ 1573 if (dcbx_cfg->pfc.pfcenable) { 1574 pause->rx_pause = 0; 1575 pause->tx_pause = 0; 1576 return; 1577 } 1578 1579 if (hw->fc.current_mode == I40E_FC_RX_PAUSE) { 1580 pause->rx_pause = 1; 1581 } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) { 1582 pause->tx_pause = 1; 1583 } else if (hw->fc.current_mode == I40E_FC_FULL) { 1584 pause->rx_pause = 1; 1585 pause->tx_pause = 1; 1586 } 1587 } 1588 1589 /** 1590 * i40e_set_pauseparam - Set Flow Control parameter 1591 * @netdev: network interface device structure 1592 * @pause: return tx/rx flow control status 1593 **/ 1594 static int i40e_set_pauseparam(struct net_device *netdev, 1595 struct ethtool_pauseparam *pause) 1596 { 1597 struct i40e_netdev_priv *np = netdev_priv(netdev); 1598 struct i40e_pf *pf = np->vsi->back; 1599 struct i40e_vsi *vsi = np->vsi; 1600 struct i40e_hw *hw = &pf->hw; 1601 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1602 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 1603 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 1604 i40e_status status; 1605 u8 aq_failures; 1606 int err = 0; 1607 u32 is_an; 1608 1609 /* Changing the port's flow control is not supported if this isn't the 1610 * port's controlling PF 1611 */ 1612 if (hw->partition_id != 1) { 1613 i40e_partition_setting_complaint(pf); 1614 return -EOPNOTSUPP; 1615 } 1616 1617 if (vsi != pf->vsi[pf->lan_vsi]) 1618 return -EOPNOTSUPP; 1619 1620 is_an = hw_link_info->an_info & I40E_AQ_AN_COMPLETED; 1621 if (pause->autoneg != is_an) { 1622 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n"); 1623 return -EOPNOTSUPP; 1624 } 1625 1626 /* If we have link and don't have autoneg */ 1627 if (!test_bit(__I40E_DOWN, pf->state) && !is_an) { 1628 /* Send message that it might not necessarily work*/ 1629 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n"); 1630 } 1631 1632 if (dcbx_cfg->pfc.pfcenable) { 1633 netdev_info(netdev, 1634 "Priority flow control enabled. Cannot set link flow control.\n"); 1635 return -EOPNOTSUPP; 1636 } 1637 1638 if (pause->rx_pause && pause->tx_pause) 1639 hw->fc.requested_mode = I40E_FC_FULL; 1640 else if (pause->rx_pause && !pause->tx_pause) 1641 hw->fc.requested_mode = I40E_FC_RX_PAUSE; 1642 else if (!pause->rx_pause && pause->tx_pause) 1643 hw->fc.requested_mode = I40E_FC_TX_PAUSE; 1644 else if (!pause->rx_pause && !pause->tx_pause) 1645 hw->fc.requested_mode = I40E_FC_NONE; 1646 else 1647 return -EINVAL; 1648 1649 /* Tell the OS link is going down, the link will go back up when fw 1650 * says it is ready asynchronously 1651 */ 1652 i40e_print_link_message(vsi, false); 1653 netif_carrier_off(netdev); 1654 netif_tx_stop_all_queues(netdev); 1655 1656 /* Set the fc mode and only restart an if link is up*/ 1657 status = i40e_set_fc(hw, &aq_failures, link_up); 1658 1659 if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) { 1660 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n", 1661 i40e_stat_str(hw, status), 1662 i40e_aq_str(hw, hw->aq.asq_last_status)); 1663 err = -EAGAIN; 1664 } 1665 if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) { 1666 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n", 1667 i40e_stat_str(hw, status), 1668 i40e_aq_str(hw, hw->aq.asq_last_status)); 1669 err = -EAGAIN; 1670 } 1671 if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) { 1672 netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n", 1673 i40e_stat_str(hw, status), 1674 i40e_aq_str(hw, hw->aq.asq_last_status)); 1675 err = -EAGAIN; 1676 } 1677 1678 if (!test_bit(__I40E_DOWN, pf->state) && is_an) { 1679 /* Give it a little more time to try to come back */ 1680 msleep(75); 1681 if (!test_bit(__I40E_DOWN, pf->state)) 1682 return i40e_nway_reset(netdev); 1683 } 1684 1685 return err; 1686 } 1687 1688 static u32 i40e_get_msglevel(struct net_device *netdev) 1689 { 1690 struct i40e_netdev_priv *np = netdev_priv(netdev); 1691 struct i40e_pf *pf = np->vsi->back; 1692 u32 debug_mask = pf->hw.debug_mask; 1693 1694 if (debug_mask) 1695 netdev_info(netdev, "i40e debug_mask: 0x%08X\n", debug_mask); 1696 1697 return pf->msg_enable; 1698 } 1699 1700 static void i40e_set_msglevel(struct net_device *netdev, u32 data) 1701 { 1702 struct i40e_netdev_priv *np = netdev_priv(netdev); 1703 struct i40e_pf *pf = np->vsi->back; 1704 1705 if (I40E_DEBUG_USER & data) 1706 pf->hw.debug_mask = data; 1707 else 1708 pf->msg_enable = data; 1709 } 1710 1711 static int i40e_get_regs_len(struct net_device *netdev) 1712 { 1713 int reg_count = 0; 1714 int i; 1715 1716 for (i = 0; i40e_reg_list[i].offset != 0; i++) 1717 reg_count += i40e_reg_list[i].elements; 1718 1719 return reg_count * sizeof(u32); 1720 } 1721 1722 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs, 1723 void *p) 1724 { 1725 struct i40e_netdev_priv *np = netdev_priv(netdev); 1726 struct i40e_pf *pf = np->vsi->back; 1727 struct i40e_hw *hw = &pf->hw; 1728 u32 *reg_buf = p; 1729 unsigned int i, j, ri; 1730 u32 reg; 1731 1732 /* Tell ethtool which driver-version-specific regs output we have. 1733 * 1734 * At some point, if we have ethtool doing special formatting of 1735 * this data, it will rely on this version number to know how to 1736 * interpret things. Hence, this needs to be updated if/when the 1737 * diags register table is changed. 1738 */ 1739 regs->version = 1; 1740 1741 /* loop through the diags reg table for what to print */ 1742 ri = 0; 1743 for (i = 0; i40e_reg_list[i].offset != 0; i++) { 1744 for (j = 0; j < i40e_reg_list[i].elements; j++) { 1745 reg = i40e_reg_list[i].offset 1746 + (j * i40e_reg_list[i].stride); 1747 reg_buf[ri++] = rd32(hw, reg); 1748 } 1749 } 1750 1751 } 1752 1753 static int i40e_get_eeprom(struct net_device *netdev, 1754 struct ethtool_eeprom *eeprom, u8 *bytes) 1755 { 1756 struct i40e_netdev_priv *np = netdev_priv(netdev); 1757 struct i40e_hw *hw = &np->vsi->back->hw; 1758 struct i40e_pf *pf = np->vsi->back; 1759 int ret_val = 0, len, offset; 1760 u8 *eeprom_buff; 1761 u16 i, sectors; 1762 bool last; 1763 u32 magic; 1764 1765 #define I40E_NVM_SECTOR_SIZE 4096 1766 if (eeprom->len == 0) 1767 return -EINVAL; 1768 1769 /* check for NVMUpdate access method */ 1770 magic = hw->vendor_id | (hw->device_id << 16); 1771 if (eeprom->magic && eeprom->magic != magic) { 1772 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1773 int errno = 0; 1774 1775 /* make sure it is the right magic for NVMUpdate */ 1776 if ((eeprom->magic >> 16) != hw->device_id) 1777 errno = -EINVAL; 1778 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 1779 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 1780 errno = -EBUSY; 1781 else 1782 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1783 1784 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1785 dev_info(&pf->pdev->dev, 1786 "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1787 ret_val, hw->aq.asq_last_status, errno, 1788 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1789 cmd->offset, cmd->data_size); 1790 1791 return errno; 1792 } 1793 1794 /* normal ethtool get_eeprom support */ 1795 eeprom->magic = hw->vendor_id | (hw->device_id << 16); 1796 1797 eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL); 1798 if (!eeprom_buff) 1799 return -ENOMEM; 1800 1801 ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ); 1802 if (ret_val) { 1803 dev_info(&pf->pdev->dev, 1804 "Failed Acquiring NVM resource for read err=%d status=0x%x\n", 1805 ret_val, hw->aq.asq_last_status); 1806 goto free_buff; 1807 } 1808 1809 sectors = eeprom->len / I40E_NVM_SECTOR_SIZE; 1810 sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0; 1811 len = I40E_NVM_SECTOR_SIZE; 1812 last = false; 1813 for (i = 0; i < sectors; i++) { 1814 if (i == (sectors - 1)) { 1815 len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i); 1816 last = true; 1817 } 1818 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i), 1819 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len, 1820 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i), 1821 last, NULL); 1822 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) { 1823 dev_info(&pf->pdev->dev, 1824 "read NVM failed, invalid offset 0x%x\n", 1825 offset); 1826 break; 1827 } else if (ret_val && 1828 hw->aq.asq_last_status == I40E_AQ_RC_EACCES) { 1829 dev_info(&pf->pdev->dev, 1830 "read NVM failed, access, offset 0x%x\n", 1831 offset); 1832 break; 1833 } else if (ret_val) { 1834 dev_info(&pf->pdev->dev, 1835 "read NVM failed offset %d err=%d status=0x%x\n", 1836 offset, ret_val, hw->aq.asq_last_status); 1837 break; 1838 } 1839 } 1840 1841 i40e_release_nvm(hw); 1842 memcpy(bytes, (u8 *)eeprom_buff, eeprom->len); 1843 free_buff: 1844 kfree(eeprom_buff); 1845 return ret_val; 1846 } 1847 1848 static int i40e_get_eeprom_len(struct net_device *netdev) 1849 { 1850 struct i40e_netdev_priv *np = netdev_priv(netdev); 1851 struct i40e_hw *hw = &np->vsi->back->hw; 1852 u32 val; 1853 1854 #define X722_EEPROM_SCOPE_LIMIT 0x5B9FFF 1855 if (hw->mac.type == I40E_MAC_X722) { 1856 val = X722_EEPROM_SCOPE_LIMIT + 1; 1857 return val; 1858 } 1859 val = (rd32(hw, I40E_GLPCI_LBARCTRL) 1860 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK) 1861 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT; 1862 /* register returns value in power of 2, 64Kbyte chunks. */ 1863 val = (64 * 1024) * BIT(val); 1864 return val; 1865 } 1866 1867 static int i40e_set_eeprom(struct net_device *netdev, 1868 struct ethtool_eeprom *eeprom, u8 *bytes) 1869 { 1870 struct i40e_netdev_priv *np = netdev_priv(netdev); 1871 struct i40e_hw *hw = &np->vsi->back->hw; 1872 struct i40e_pf *pf = np->vsi->back; 1873 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1874 int ret_val = 0; 1875 int errno = 0; 1876 u32 magic; 1877 1878 /* normal ethtool set_eeprom is not supported */ 1879 magic = hw->vendor_id | (hw->device_id << 16); 1880 if (eeprom->magic == magic) 1881 errno = -EOPNOTSUPP; 1882 /* check for NVMUpdate access method */ 1883 else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id) 1884 errno = -EINVAL; 1885 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 1886 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 1887 errno = -EBUSY; 1888 else 1889 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1890 1891 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1892 dev_info(&pf->pdev->dev, 1893 "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1894 ret_val, hw->aq.asq_last_status, errno, 1895 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1896 cmd->offset, cmd->data_size); 1897 1898 return errno; 1899 } 1900 1901 static void i40e_get_drvinfo(struct net_device *netdev, 1902 struct ethtool_drvinfo *drvinfo) 1903 { 1904 struct i40e_netdev_priv *np = netdev_priv(netdev); 1905 struct i40e_vsi *vsi = np->vsi; 1906 struct i40e_pf *pf = vsi->back; 1907 1908 strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver)); 1909 strlcpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw), 1910 sizeof(drvinfo->fw_version)); 1911 strlcpy(drvinfo->bus_info, pci_name(pf->pdev), 1912 sizeof(drvinfo->bus_info)); 1913 drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN; 1914 if (pf->hw.pf_id == 0) 1915 drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN; 1916 } 1917 1918 static void i40e_get_ringparam(struct net_device *netdev, 1919 struct ethtool_ringparam *ring, 1920 struct kernel_ethtool_ringparam *kernel_ring, 1921 struct netlink_ext_ack *extack) 1922 { 1923 struct i40e_netdev_priv *np = netdev_priv(netdev); 1924 struct i40e_pf *pf = np->vsi->back; 1925 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; 1926 1927 ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS; 1928 ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS; 1929 ring->rx_mini_max_pending = 0; 1930 ring->rx_jumbo_max_pending = 0; 1931 ring->rx_pending = vsi->rx_rings[0]->count; 1932 ring->tx_pending = vsi->tx_rings[0]->count; 1933 ring->rx_mini_pending = 0; 1934 ring->rx_jumbo_pending = 0; 1935 } 1936 1937 static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index) 1938 { 1939 if (i40e_enabled_xdp_vsi(vsi)) { 1940 return index < vsi->num_queue_pairs || 1941 (index >= vsi->alloc_queue_pairs && 1942 index < vsi->alloc_queue_pairs + vsi->num_queue_pairs); 1943 } 1944 1945 return index < vsi->num_queue_pairs; 1946 } 1947 1948 static int i40e_set_ringparam(struct net_device *netdev, 1949 struct ethtool_ringparam *ring, 1950 struct kernel_ethtool_ringparam *kernel_ring, 1951 struct netlink_ext_ack *extack) 1952 { 1953 struct i40e_ring *tx_rings = NULL, *rx_rings = NULL; 1954 struct i40e_netdev_priv *np = netdev_priv(netdev); 1955 struct i40e_hw *hw = &np->vsi->back->hw; 1956 struct i40e_vsi *vsi = np->vsi; 1957 struct i40e_pf *pf = vsi->back; 1958 u32 new_rx_count, new_tx_count; 1959 u16 tx_alloc_queue_pairs; 1960 int timeout = 50; 1961 int i, err = 0; 1962 1963 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) 1964 return -EINVAL; 1965 1966 if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS || 1967 ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS || 1968 ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS || 1969 ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) { 1970 netdev_info(netdev, 1971 "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n", 1972 ring->tx_pending, ring->rx_pending, 1973 I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS); 1974 return -EINVAL; 1975 } 1976 1977 new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 1978 new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 1979 1980 /* if nothing to do return success */ 1981 if ((new_tx_count == vsi->tx_rings[0]->count) && 1982 (new_rx_count == vsi->rx_rings[0]->count)) 1983 return 0; 1984 1985 /* If there is a AF_XDP page pool attached to any of Rx rings, 1986 * disallow changing the number of descriptors -- regardless 1987 * if the netdev is running or not. 1988 */ 1989 if (i40e_xsk_any_rx_ring_enabled(vsi)) 1990 return -EBUSY; 1991 1992 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { 1993 timeout--; 1994 if (!timeout) 1995 return -EBUSY; 1996 usleep_range(1000, 2000); 1997 } 1998 1999 if (!netif_running(vsi->netdev)) { 2000 /* simple case - set for the next time the netdev is started */ 2001 for (i = 0; i < vsi->num_queue_pairs; i++) { 2002 vsi->tx_rings[i]->count = new_tx_count; 2003 vsi->rx_rings[i]->count = new_rx_count; 2004 if (i40e_enabled_xdp_vsi(vsi)) 2005 vsi->xdp_rings[i]->count = new_tx_count; 2006 } 2007 vsi->num_tx_desc = new_tx_count; 2008 vsi->num_rx_desc = new_rx_count; 2009 goto done; 2010 } 2011 2012 /* We can't just free everything and then setup again, 2013 * because the ISRs in MSI-X mode get passed pointers 2014 * to the Tx and Rx ring structs. 2015 */ 2016 2017 /* alloc updated Tx and XDP Tx resources */ 2018 tx_alloc_queue_pairs = vsi->alloc_queue_pairs * 2019 (i40e_enabled_xdp_vsi(vsi) ? 2 : 1); 2020 if (new_tx_count != vsi->tx_rings[0]->count) { 2021 netdev_info(netdev, 2022 "Changing Tx descriptor count from %d to %d.\n", 2023 vsi->tx_rings[0]->count, new_tx_count); 2024 tx_rings = kcalloc(tx_alloc_queue_pairs, 2025 sizeof(struct i40e_ring), GFP_KERNEL); 2026 if (!tx_rings) { 2027 err = -ENOMEM; 2028 goto done; 2029 } 2030 2031 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2032 if (!i40e_active_tx_ring_index(vsi, i)) 2033 continue; 2034 2035 tx_rings[i] = *vsi->tx_rings[i]; 2036 tx_rings[i].count = new_tx_count; 2037 /* the desc and bi pointers will be reallocated in the 2038 * setup call 2039 */ 2040 tx_rings[i].desc = NULL; 2041 tx_rings[i].rx_bi = NULL; 2042 err = i40e_setup_tx_descriptors(&tx_rings[i]); 2043 if (err) { 2044 while (i) { 2045 i--; 2046 if (!i40e_active_tx_ring_index(vsi, i)) 2047 continue; 2048 i40e_free_tx_resources(&tx_rings[i]); 2049 } 2050 kfree(tx_rings); 2051 tx_rings = NULL; 2052 2053 goto done; 2054 } 2055 } 2056 } 2057 2058 /* alloc updated Rx resources */ 2059 if (new_rx_count != vsi->rx_rings[0]->count) { 2060 netdev_info(netdev, 2061 "Changing Rx descriptor count from %d to %d\n", 2062 vsi->rx_rings[0]->count, new_rx_count); 2063 rx_rings = kcalloc(vsi->alloc_queue_pairs, 2064 sizeof(struct i40e_ring), GFP_KERNEL); 2065 if (!rx_rings) { 2066 err = -ENOMEM; 2067 goto free_tx; 2068 } 2069 2070 for (i = 0; i < vsi->num_queue_pairs; i++) { 2071 u16 unused; 2072 2073 /* clone ring and setup updated count */ 2074 rx_rings[i] = *vsi->rx_rings[i]; 2075 rx_rings[i].count = new_rx_count; 2076 /* the desc and bi pointers will be reallocated in the 2077 * setup call 2078 */ 2079 rx_rings[i].desc = NULL; 2080 rx_rings[i].rx_bi = NULL; 2081 /* Clear cloned XDP RX-queue info before setup call */ 2082 memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq)); 2083 /* this is to allow wr32 to have something to write to 2084 * during early allocation of Rx buffers 2085 */ 2086 rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS; 2087 err = i40e_setup_rx_descriptors(&rx_rings[i]); 2088 if (err) 2089 goto rx_unwind; 2090 err = i40e_alloc_rx_bi(&rx_rings[i]); 2091 if (err) 2092 goto rx_unwind; 2093 2094 /* now allocate the Rx buffers to make sure the OS 2095 * has enough memory, any failure here means abort 2096 */ 2097 unused = I40E_DESC_UNUSED(&rx_rings[i]); 2098 err = i40e_alloc_rx_buffers(&rx_rings[i], unused); 2099 rx_unwind: 2100 if (err) { 2101 do { 2102 i40e_free_rx_resources(&rx_rings[i]); 2103 } while (i--); 2104 kfree(rx_rings); 2105 rx_rings = NULL; 2106 2107 goto free_tx; 2108 } 2109 } 2110 } 2111 2112 /* Bring interface down, copy in the new ring info, 2113 * then restore the interface 2114 */ 2115 i40e_down(vsi); 2116 2117 if (tx_rings) { 2118 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2119 if (i40e_active_tx_ring_index(vsi, i)) { 2120 i40e_free_tx_resources(vsi->tx_rings[i]); 2121 *vsi->tx_rings[i] = tx_rings[i]; 2122 } 2123 } 2124 kfree(tx_rings); 2125 tx_rings = NULL; 2126 } 2127 2128 if (rx_rings) { 2129 for (i = 0; i < vsi->num_queue_pairs; i++) { 2130 i40e_free_rx_resources(vsi->rx_rings[i]); 2131 /* get the real tail offset */ 2132 rx_rings[i].tail = vsi->rx_rings[i]->tail; 2133 /* this is to fake out the allocation routine 2134 * into thinking it has to realloc everything 2135 * but the recycling logic will let us re-use 2136 * the buffers allocated above 2137 */ 2138 rx_rings[i].next_to_use = 0; 2139 rx_rings[i].next_to_clean = 0; 2140 rx_rings[i].next_to_alloc = 0; 2141 /* do a struct copy */ 2142 *vsi->rx_rings[i] = rx_rings[i]; 2143 } 2144 kfree(rx_rings); 2145 rx_rings = NULL; 2146 } 2147 2148 vsi->num_tx_desc = new_tx_count; 2149 vsi->num_rx_desc = new_rx_count; 2150 i40e_up(vsi); 2151 2152 free_tx: 2153 /* error cleanup if the Rx allocations failed after getting Tx */ 2154 if (tx_rings) { 2155 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2156 if (i40e_active_tx_ring_index(vsi, i)) 2157 i40e_free_tx_resources(vsi->tx_rings[i]); 2158 } 2159 kfree(tx_rings); 2160 tx_rings = NULL; 2161 } 2162 2163 done: 2164 clear_bit(__I40E_CONFIG_BUSY, pf->state); 2165 2166 return err; 2167 } 2168 2169 /** 2170 * i40e_get_stats_count - return the stats count for a device 2171 * @netdev: the netdev to return the count for 2172 * 2173 * Returns the total number of statistics for this netdev. Note that even 2174 * though this is a function, it is required that the count for a specific 2175 * netdev must never change. Basing the count on static values such as the 2176 * maximum number of queues or the device type is ok. However, the API for 2177 * obtaining stats is *not* safe against changes based on non-static 2178 * values such as the *current* number of queues, or runtime flags. 2179 * 2180 * If a statistic is not always enabled, return it as part of the count 2181 * anyways, always return its string, and report its value as zero. 2182 **/ 2183 static int i40e_get_stats_count(struct net_device *netdev) 2184 { 2185 struct i40e_netdev_priv *np = netdev_priv(netdev); 2186 struct i40e_vsi *vsi = np->vsi; 2187 struct i40e_pf *pf = vsi->back; 2188 int stats_len; 2189 2190 if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1) 2191 stats_len = I40E_PF_STATS_LEN; 2192 else 2193 stats_len = I40E_VSI_STATS_LEN; 2194 2195 /* The number of stats reported for a given net_device must remain 2196 * constant throughout the life of that device. 2197 * 2198 * This is because the API for obtaining the size, strings, and stats 2199 * is spread out over three separate ethtool ioctls. There is no safe 2200 * way to lock the number of stats across these calls, so we must 2201 * assume that they will never change. 2202 * 2203 * Due to this, we report the maximum number of queues, even if not 2204 * every queue is currently configured. Since we always allocate 2205 * queues in pairs, we'll just use netdev->num_tx_queues * 2. This 2206 * works because the num_tx_queues is set at device creation and never 2207 * changes. 2208 */ 2209 stats_len += I40E_QUEUE_STATS_LEN * 2 * netdev->num_tx_queues; 2210 2211 return stats_len; 2212 } 2213 2214 static int i40e_get_sset_count(struct net_device *netdev, int sset) 2215 { 2216 struct i40e_netdev_priv *np = netdev_priv(netdev); 2217 struct i40e_vsi *vsi = np->vsi; 2218 struct i40e_pf *pf = vsi->back; 2219 2220 switch (sset) { 2221 case ETH_SS_TEST: 2222 return I40E_TEST_LEN; 2223 case ETH_SS_STATS: 2224 return i40e_get_stats_count(netdev); 2225 case ETH_SS_PRIV_FLAGS: 2226 return I40E_PRIV_FLAGS_STR_LEN + 2227 (pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0); 2228 default: 2229 return -EOPNOTSUPP; 2230 } 2231 } 2232 2233 /** 2234 * i40e_get_veb_tc_stats - copy VEB TC statistics to formatted structure 2235 * @tc: the TC statistics in VEB structure (veb->tc_stats) 2236 * @i: the index of traffic class in (veb->tc_stats) structure to copy 2237 * 2238 * Copy VEB TC statistics from structure of arrays (veb->tc_stats) to 2239 * one dimensional structure i40e_cp_veb_tc_stats. 2240 * Produce formatted i40e_cp_veb_tc_stats structure of the VEB TC 2241 * statistics for the given TC. 2242 **/ 2243 static struct i40e_cp_veb_tc_stats 2244 i40e_get_veb_tc_stats(struct i40e_veb_tc_stats *tc, unsigned int i) 2245 { 2246 struct i40e_cp_veb_tc_stats veb_tc = { 2247 .tc_rx_packets = tc->tc_rx_packets[i], 2248 .tc_rx_bytes = tc->tc_rx_bytes[i], 2249 .tc_tx_packets = tc->tc_tx_packets[i], 2250 .tc_tx_bytes = tc->tc_tx_bytes[i], 2251 }; 2252 2253 return veb_tc; 2254 } 2255 2256 /** 2257 * i40e_get_pfc_stats - copy HW PFC statistics to formatted structure 2258 * @pf: the PF device structure 2259 * @i: the priority value to copy 2260 * 2261 * The PFC stats are found as arrays in pf->stats, which is not easy to pass 2262 * into i40e_add_ethtool_stats. Produce a formatted i40e_pfc_stats structure 2263 * of the PFC stats for the given priority. 2264 **/ 2265 static inline struct i40e_pfc_stats 2266 i40e_get_pfc_stats(struct i40e_pf *pf, unsigned int i) 2267 { 2268 #define I40E_GET_PFC_STAT(stat, priority) \ 2269 .stat = pf->stats.stat[priority] 2270 2271 struct i40e_pfc_stats pfc = { 2272 I40E_GET_PFC_STAT(priority_xon_rx, i), 2273 I40E_GET_PFC_STAT(priority_xoff_rx, i), 2274 I40E_GET_PFC_STAT(priority_xon_tx, i), 2275 I40E_GET_PFC_STAT(priority_xoff_tx, i), 2276 I40E_GET_PFC_STAT(priority_xon_2_xoff, i), 2277 }; 2278 return pfc; 2279 } 2280 2281 /** 2282 * i40e_get_ethtool_stats - copy stat values into supplied buffer 2283 * @netdev: the netdev to collect stats for 2284 * @stats: ethtool stats command structure 2285 * @data: ethtool supplied buffer 2286 * 2287 * Copy the stats values for this netdev into the buffer. Expects data to be 2288 * pre-allocated to the size returned by i40e_get_stats_count.. Note that all 2289 * statistics must be copied in a static order, and the count must not change 2290 * for a given netdev. See i40e_get_stats_count for more details. 2291 * 2292 * If a statistic is not currently valid (such as a disabled queue), this 2293 * function reports its value as zero. 2294 **/ 2295 static void i40e_get_ethtool_stats(struct net_device *netdev, 2296 struct ethtool_stats *stats, u64 *data) 2297 { 2298 struct i40e_netdev_priv *np = netdev_priv(netdev); 2299 struct i40e_vsi *vsi = np->vsi; 2300 struct i40e_pf *pf = vsi->back; 2301 struct i40e_veb *veb = NULL; 2302 unsigned int i; 2303 bool veb_stats; 2304 u64 *p = data; 2305 2306 i40e_update_stats(vsi); 2307 2308 i40e_add_ethtool_stats(&data, i40e_get_vsi_stats_struct(vsi), 2309 i40e_gstrings_net_stats); 2310 2311 i40e_add_ethtool_stats(&data, vsi, i40e_gstrings_misc_stats); 2312 2313 rcu_read_lock(); 2314 for (i = 0; i < netdev->num_tx_queues; i++) { 2315 i40e_add_queue_stats(&data, READ_ONCE(vsi->tx_rings[i])); 2316 i40e_add_queue_stats(&data, READ_ONCE(vsi->rx_rings[i])); 2317 } 2318 rcu_read_unlock(); 2319 2320 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1) 2321 goto check_data_pointer; 2322 2323 veb_stats = ((pf->lan_veb != I40E_NO_VEB) && 2324 (pf->lan_veb < I40E_MAX_VEB) && 2325 (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)); 2326 2327 if (veb_stats) { 2328 veb = pf->veb[pf->lan_veb]; 2329 i40e_update_veb_stats(veb); 2330 } 2331 2332 /* If veb stats aren't enabled, pass NULL instead of the veb so that 2333 * we initialize stats to zero and update the data pointer 2334 * intelligently 2335 */ 2336 i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL, 2337 i40e_gstrings_veb_stats); 2338 2339 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) 2340 if (veb_stats) { 2341 struct i40e_cp_veb_tc_stats veb_tc = 2342 i40e_get_veb_tc_stats(&veb->tc_stats, i); 2343 2344 i40e_add_ethtool_stats(&data, &veb_tc, 2345 i40e_gstrings_veb_tc_stats); 2346 } else { 2347 i40e_add_ethtool_stats(&data, NULL, 2348 i40e_gstrings_veb_tc_stats); 2349 } 2350 2351 i40e_add_ethtool_stats(&data, pf, i40e_gstrings_stats); 2352 2353 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { 2354 struct i40e_pfc_stats pfc = i40e_get_pfc_stats(pf, i); 2355 2356 i40e_add_ethtool_stats(&data, &pfc, i40e_gstrings_pfc_stats); 2357 } 2358 2359 check_data_pointer: 2360 WARN_ONCE(data - p != i40e_get_stats_count(netdev), 2361 "ethtool stats count mismatch!"); 2362 } 2363 2364 /** 2365 * i40e_get_stat_strings - copy stat strings into supplied buffer 2366 * @netdev: the netdev to collect strings for 2367 * @data: supplied buffer to copy strings into 2368 * 2369 * Copy the strings related to stats for this netdev. Expects data to be 2370 * pre-allocated with the size reported by i40e_get_stats_count. Note that the 2371 * strings must be copied in a static order and the total count must not 2372 * change for a given netdev. See i40e_get_stats_count for more details. 2373 **/ 2374 static void i40e_get_stat_strings(struct net_device *netdev, u8 *data) 2375 { 2376 struct i40e_netdev_priv *np = netdev_priv(netdev); 2377 struct i40e_vsi *vsi = np->vsi; 2378 struct i40e_pf *pf = vsi->back; 2379 unsigned int i; 2380 u8 *p = data; 2381 2382 i40e_add_stat_strings(&data, i40e_gstrings_net_stats); 2383 2384 i40e_add_stat_strings(&data, i40e_gstrings_misc_stats); 2385 2386 for (i = 0; i < netdev->num_tx_queues; i++) { 2387 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, 2388 "tx", i); 2389 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, 2390 "rx", i); 2391 } 2392 2393 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1) 2394 goto check_data_pointer; 2395 2396 i40e_add_stat_strings(&data, i40e_gstrings_veb_stats); 2397 2398 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) 2399 i40e_add_stat_strings(&data, i40e_gstrings_veb_tc_stats, i); 2400 2401 i40e_add_stat_strings(&data, i40e_gstrings_stats); 2402 2403 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) 2404 i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i); 2405 2406 check_data_pointer: 2407 WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN, 2408 "stat strings count mismatch!"); 2409 } 2410 2411 static void i40e_get_priv_flag_strings(struct net_device *netdev, u8 *data) 2412 { 2413 struct i40e_netdev_priv *np = netdev_priv(netdev); 2414 struct i40e_vsi *vsi = np->vsi; 2415 struct i40e_pf *pf = vsi->back; 2416 unsigned int i; 2417 u8 *p = data; 2418 2419 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) 2420 ethtool_sprintf(&p, i40e_gstrings_priv_flags[i].flag_string); 2421 if (pf->hw.pf_id != 0) 2422 return; 2423 for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++) 2424 ethtool_sprintf(&p, i40e_gl_gstrings_priv_flags[i].flag_string); 2425 } 2426 2427 static void i40e_get_strings(struct net_device *netdev, u32 stringset, 2428 u8 *data) 2429 { 2430 switch (stringset) { 2431 case ETH_SS_TEST: 2432 memcpy(data, i40e_gstrings_test, 2433 I40E_TEST_LEN * ETH_GSTRING_LEN); 2434 break; 2435 case ETH_SS_STATS: 2436 i40e_get_stat_strings(netdev, data); 2437 break; 2438 case ETH_SS_PRIV_FLAGS: 2439 i40e_get_priv_flag_strings(netdev, data); 2440 break; 2441 default: 2442 break; 2443 } 2444 } 2445 2446 static int i40e_get_ts_info(struct net_device *dev, 2447 struct ethtool_ts_info *info) 2448 { 2449 struct i40e_pf *pf = i40e_netdev_to_pf(dev); 2450 2451 /* only report HW timestamping if PTP is enabled */ 2452 if (!(pf->flags & I40E_FLAG_PTP)) 2453 return ethtool_op_get_ts_info(dev, info); 2454 2455 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | 2456 SOF_TIMESTAMPING_RX_SOFTWARE | 2457 SOF_TIMESTAMPING_SOFTWARE | 2458 SOF_TIMESTAMPING_TX_HARDWARE | 2459 SOF_TIMESTAMPING_RX_HARDWARE | 2460 SOF_TIMESTAMPING_RAW_HARDWARE; 2461 2462 if (pf->ptp_clock) 2463 info->phc_index = ptp_clock_index(pf->ptp_clock); 2464 else 2465 info->phc_index = -1; 2466 2467 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON); 2468 2469 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | 2470 BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) | 2471 BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) | 2472 BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ); 2473 2474 if (pf->hw_features & I40E_HW_PTP_L4_CAPABLE) 2475 info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) | 2476 BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) | 2477 BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) | 2478 BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) | 2479 BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) | 2480 BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) | 2481 BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) | 2482 BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ); 2483 2484 return 0; 2485 } 2486 2487 static u64 i40e_link_test(struct net_device *netdev, u64 *data) 2488 { 2489 struct i40e_netdev_priv *np = netdev_priv(netdev); 2490 struct i40e_pf *pf = np->vsi->back; 2491 i40e_status status; 2492 bool link_up = false; 2493 2494 netif_info(pf, hw, netdev, "link test\n"); 2495 status = i40e_get_link_status(&pf->hw, &link_up); 2496 if (status) { 2497 netif_err(pf, drv, netdev, "link query timed out, please retry test\n"); 2498 *data = 1; 2499 return *data; 2500 } 2501 2502 if (link_up) 2503 *data = 0; 2504 else 2505 *data = 1; 2506 2507 return *data; 2508 } 2509 2510 static u64 i40e_reg_test(struct net_device *netdev, u64 *data) 2511 { 2512 struct i40e_netdev_priv *np = netdev_priv(netdev); 2513 struct i40e_pf *pf = np->vsi->back; 2514 2515 netif_info(pf, hw, netdev, "register test\n"); 2516 *data = i40e_diag_reg_test(&pf->hw); 2517 2518 return *data; 2519 } 2520 2521 static u64 i40e_eeprom_test(struct net_device *netdev, u64 *data) 2522 { 2523 struct i40e_netdev_priv *np = netdev_priv(netdev); 2524 struct i40e_pf *pf = np->vsi->back; 2525 2526 netif_info(pf, hw, netdev, "eeprom test\n"); 2527 *data = i40e_diag_eeprom_test(&pf->hw); 2528 2529 /* forcebly clear the NVM Update state machine */ 2530 pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT; 2531 2532 return *data; 2533 } 2534 2535 static u64 i40e_intr_test(struct net_device *netdev, u64 *data) 2536 { 2537 struct i40e_netdev_priv *np = netdev_priv(netdev); 2538 struct i40e_pf *pf = np->vsi->back; 2539 u16 swc_old = pf->sw_int_count; 2540 2541 netif_info(pf, hw, netdev, "interrupt test\n"); 2542 wr32(&pf->hw, I40E_PFINT_DYN_CTL0, 2543 (I40E_PFINT_DYN_CTL0_INTENA_MASK | 2544 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK | 2545 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK | 2546 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK | 2547 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK)); 2548 usleep_range(1000, 2000); 2549 *data = (swc_old == pf->sw_int_count); 2550 2551 return *data; 2552 } 2553 2554 static inline bool i40e_active_vfs(struct i40e_pf *pf) 2555 { 2556 struct i40e_vf *vfs = pf->vf; 2557 int i; 2558 2559 for (i = 0; i < pf->num_alloc_vfs; i++) 2560 if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states)) 2561 return true; 2562 return false; 2563 } 2564 2565 static inline bool i40e_active_vmdqs(struct i40e_pf *pf) 2566 { 2567 return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2); 2568 } 2569 2570 static void i40e_diag_test(struct net_device *netdev, 2571 struct ethtool_test *eth_test, u64 *data) 2572 { 2573 struct i40e_netdev_priv *np = netdev_priv(netdev); 2574 bool if_running = netif_running(netdev); 2575 struct i40e_pf *pf = np->vsi->back; 2576 2577 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 2578 /* Offline tests */ 2579 netif_info(pf, drv, netdev, "offline testing starting\n"); 2580 2581 set_bit(__I40E_TESTING, pf->state); 2582 2583 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) { 2584 dev_warn(&pf->pdev->dev, 2585 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n"); 2586 data[I40E_ETH_TEST_REG] = 1; 2587 data[I40E_ETH_TEST_EEPROM] = 1; 2588 data[I40E_ETH_TEST_INTR] = 1; 2589 data[I40E_ETH_TEST_LINK] = 1; 2590 eth_test->flags |= ETH_TEST_FL_FAILED; 2591 clear_bit(__I40E_TESTING, pf->state); 2592 goto skip_ol_tests; 2593 } 2594 2595 /* If the device is online then take it offline */ 2596 if (if_running) 2597 /* indicate we're in test mode */ 2598 i40e_close(netdev); 2599 else 2600 /* This reset does not affect link - if it is 2601 * changed to a type of reset that does affect 2602 * link then the following link test would have 2603 * to be moved to before the reset 2604 */ 2605 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 2606 2607 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 2608 eth_test->flags |= ETH_TEST_FL_FAILED; 2609 2610 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM])) 2611 eth_test->flags |= ETH_TEST_FL_FAILED; 2612 2613 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR])) 2614 eth_test->flags |= ETH_TEST_FL_FAILED; 2615 2616 /* run reg test last, a reset is required after it */ 2617 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG])) 2618 eth_test->flags |= ETH_TEST_FL_FAILED; 2619 2620 clear_bit(__I40E_TESTING, pf->state); 2621 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 2622 2623 if (if_running) 2624 i40e_open(netdev); 2625 } else { 2626 /* Online tests */ 2627 netif_info(pf, drv, netdev, "online testing starting\n"); 2628 2629 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 2630 eth_test->flags |= ETH_TEST_FL_FAILED; 2631 2632 /* Offline only tests, not run in online; pass by default */ 2633 data[I40E_ETH_TEST_REG] = 0; 2634 data[I40E_ETH_TEST_EEPROM] = 0; 2635 data[I40E_ETH_TEST_INTR] = 0; 2636 } 2637 2638 skip_ol_tests: 2639 2640 netif_info(pf, drv, netdev, "testing finished\n"); 2641 } 2642 2643 static void i40e_get_wol(struct net_device *netdev, 2644 struct ethtool_wolinfo *wol) 2645 { 2646 struct i40e_netdev_priv *np = netdev_priv(netdev); 2647 struct i40e_pf *pf = np->vsi->back; 2648 struct i40e_hw *hw = &pf->hw; 2649 u16 wol_nvm_bits; 2650 2651 /* NVM bit on means WoL disabled for the port */ 2652 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 2653 if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) { 2654 wol->supported = 0; 2655 wol->wolopts = 0; 2656 } else { 2657 wol->supported = WAKE_MAGIC; 2658 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0); 2659 } 2660 } 2661 2662 /** 2663 * i40e_set_wol - set the WakeOnLAN configuration 2664 * @netdev: the netdev in question 2665 * @wol: the ethtool WoL setting data 2666 **/ 2667 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 2668 { 2669 struct i40e_netdev_priv *np = netdev_priv(netdev); 2670 struct i40e_pf *pf = np->vsi->back; 2671 struct i40e_vsi *vsi = np->vsi; 2672 struct i40e_hw *hw = &pf->hw; 2673 u16 wol_nvm_bits; 2674 2675 /* WoL not supported if this isn't the controlling PF on the port */ 2676 if (hw->partition_id != 1) { 2677 i40e_partition_setting_complaint(pf); 2678 return -EOPNOTSUPP; 2679 } 2680 2681 if (vsi != pf->vsi[pf->lan_vsi]) 2682 return -EOPNOTSUPP; 2683 2684 /* NVM bit on means WoL disabled for the port */ 2685 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 2686 if (BIT(hw->port) & wol_nvm_bits) 2687 return -EOPNOTSUPP; 2688 2689 /* only magic packet is supported */ 2690 if (wol->wolopts & ~WAKE_MAGIC) 2691 return -EOPNOTSUPP; 2692 2693 /* is this a new value? */ 2694 if (pf->wol_en != !!wol->wolopts) { 2695 pf->wol_en = !!wol->wolopts; 2696 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en); 2697 } 2698 2699 return 0; 2700 } 2701 2702 static int i40e_set_phys_id(struct net_device *netdev, 2703 enum ethtool_phys_id_state state) 2704 { 2705 struct i40e_netdev_priv *np = netdev_priv(netdev); 2706 i40e_status ret = 0; 2707 struct i40e_pf *pf = np->vsi->back; 2708 struct i40e_hw *hw = &pf->hw; 2709 int blink_freq = 2; 2710 u16 temp_status; 2711 2712 switch (state) { 2713 case ETHTOOL_ID_ACTIVE: 2714 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) { 2715 pf->led_status = i40e_led_get(hw); 2716 } else { 2717 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) 2718 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL, 2719 NULL); 2720 ret = i40e_led_get_phy(hw, &temp_status, 2721 &pf->phy_led_val); 2722 pf->led_status = temp_status; 2723 } 2724 return blink_freq; 2725 case ETHTOOL_ID_ON: 2726 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) 2727 i40e_led_set(hw, 0xf, false); 2728 else 2729 ret = i40e_led_set_phy(hw, true, pf->led_status, 0); 2730 break; 2731 case ETHTOOL_ID_OFF: 2732 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) 2733 i40e_led_set(hw, 0x0, false); 2734 else 2735 ret = i40e_led_set_phy(hw, false, pf->led_status, 0); 2736 break; 2737 case ETHTOOL_ID_INACTIVE: 2738 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) { 2739 i40e_led_set(hw, pf->led_status, false); 2740 } else { 2741 ret = i40e_led_set_phy(hw, false, pf->led_status, 2742 (pf->phy_led_val | 2743 I40E_PHY_LED_MODE_ORIG)); 2744 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) 2745 i40e_aq_set_phy_debug(hw, 0, NULL); 2746 } 2747 break; 2748 default: 2749 break; 2750 } 2751 if (ret) 2752 return -ENOENT; 2753 else 2754 return 0; 2755 } 2756 2757 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt 2758 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also 2759 * 125us (8000 interrupts per second) == ITR(62) 2760 */ 2761 2762 /** 2763 * __i40e_get_coalesce - get per-queue coalesce settings 2764 * @netdev: the netdev to check 2765 * @ec: ethtool coalesce data structure 2766 * @queue: which queue to pick 2767 * 2768 * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs 2769 * are per queue. If queue is <0 then we default to queue 0 as the 2770 * representative value. 2771 **/ 2772 static int __i40e_get_coalesce(struct net_device *netdev, 2773 struct ethtool_coalesce *ec, 2774 int queue) 2775 { 2776 struct i40e_netdev_priv *np = netdev_priv(netdev); 2777 struct i40e_ring *rx_ring, *tx_ring; 2778 struct i40e_vsi *vsi = np->vsi; 2779 2780 ec->tx_max_coalesced_frames_irq = vsi->work_limit; 2781 ec->rx_max_coalesced_frames_irq = vsi->work_limit; 2782 2783 /* rx and tx usecs has per queue value. If user doesn't specify the 2784 * queue, return queue 0's value to represent. 2785 */ 2786 if (queue < 0) 2787 queue = 0; 2788 else if (queue >= vsi->num_queue_pairs) 2789 return -EINVAL; 2790 2791 rx_ring = vsi->rx_rings[queue]; 2792 tx_ring = vsi->tx_rings[queue]; 2793 2794 if (ITR_IS_DYNAMIC(rx_ring->itr_setting)) 2795 ec->use_adaptive_rx_coalesce = 1; 2796 2797 if (ITR_IS_DYNAMIC(tx_ring->itr_setting)) 2798 ec->use_adaptive_tx_coalesce = 1; 2799 2800 ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC; 2801 ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC; 2802 2803 /* we use the _usecs_high to store/set the interrupt rate limit 2804 * that the hardware supports, that almost but not quite 2805 * fits the original intent of the ethtool variable, 2806 * the rx_coalesce_usecs_high limits total interrupts 2807 * per second from both tx/rx sources. 2808 */ 2809 ec->rx_coalesce_usecs_high = vsi->int_rate_limit; 2810 ec->tx_coalesce_usecs_high = vsi->int_rate_limit; 2811 2812 return 0; 2813 } 2814 2815 /** 2816 * i40e_get_coalesce - get a netdev's coalesce settings 2817 * @netdev: the netdev to check 2818 * @ec: ethtool coalesce data structure 2819 * @kernel_coal: ethtool CQE mode setting structure 2820 * @extack: extack for reporting error messages 2821 * 2822 * Gets the coalesce settings for a particular netdev. Note that if user has 2823 * modified per-queue settings, this only guarantees to represent queue 0. See 2824 * __i40e_get_coalesce for more details. 2825 **/ 2826 static int i40e_get_coalesce(struct net_device *netdev, 2827 struct ethtool_coalesce *ec, 2828 struct kernel_ethtool_coalesce *kernel_coal, 2829 struct netlink_ext_ack *extack) 2830 { 2831 return __i40e_get_coalesce(netdev, ec, -1); 2832 } 2833 2834 /** 2835 * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue 2836 * @netdev: netdev structure 2837 * @ec: ethtool's coalesce settings 2838 * @queue: the particular queue to read 2839 * 2840 * Will read a specific queue's coalesce settings 2841 **/ 2842 static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue, 2843 struct ethtool_coalesce *ec) 2844 { 2845 return __i40e_get_coalesce(netdev, ec, queue); 2846 } 2847 2848 /** 2849 * i40e_set_itr_per_queue - set ITR values for specific queue 2850 * @vsi: the VSI to set values for 2851 * @ec: coalesce settings from ethtool 2852 * @queue: the queue to modify 2853 * 2854 * Change the ITR settings for a specific queue. 2855 **/ 2856 static void i40e_set_itr_per_queue(struct i40e_vsi *vsi, 2857 struct ethtool_coalesce *ec, 2858 int queue) 2859 { 2860 struct i40e_ring *rx_ring = vsi->rx_rings[queue]; 2861 struct i40e_ring *tx_ring = vsi->tx_rings[queue]; 2862 struct i40e_pf *pf = vsi->back; 2863 struct i40e_hw *hw = &pf->hw; 2864 struct i40e_q_vector *q_vector; 2865 u16 intrl; 2866 2867 intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit); 2868 2869 rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs); 2870 tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs); 2871 2872 if (ec->use_adaptive_rx_coalesce) 2873 rx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2874 else 2875 rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2876 2877 if (ec->use_adaptive_tx_coalesce) 2878 tx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2879 else 2880 tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2881 2882 q_vector = rx_ring->q_vector; 2883 q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting); 2884 2885 q_vector = tx_ring->q_vector; 2886 q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting); 2887 2888 /* The interrupt handler itself will take care of programming 2889 * the Tx and Rx ITR values based on the values we have entered 2890 * into the q_vector, no need to write the values now. 2891 */ 2892 2893 wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl); 2894 i40e_flush(hw); 2895 } 2896 2897 /** 2898 * __i40e_set_coalesce - set coalesce settings for particular queue 2899 * @netdev: the netdev to change 2900 * @ec: ethtool coalesce settings 2901 * @queue: the queue to change 2902 * 2903 * Sets the coalesce settings for a particular queue. 2904 **/ 2905 static int __i40e_set_coalesce(struct net_device *netdev, 2906 struct ethtool_coalesce *ec, 2907 int queue) 2908 { 2909 struct i40e_netdev_priv *np = netdev_priv(netdev); 2910 u16 intrl_reg, cur_rx_itr, cur_tx_itr; 2911 struct i40e_vsi *vsi = np->vsi; 2912 struct i40e_pf *pf = vsi->back; 2913 int i; 2914 2915 if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq) 2916 vsi->work_limit = ec->tx_max_coalesced_frames_irq; 2917 2918 if (queue < 0) { 2919 cur_rx_itr = vsi->rx_rings[0]->itr_setting; 2920 cur_tx_itr = vsi->tx_rings[0]->itr_setting; 2921 } else if (queue < vsi->num_queue_pairs) { 2922 cur_rx_itr = vsi->rx_rings[queue]->itr_setting; 2923 cur_tx_itr = vsi->tx_rings[queue]->itr_setting; 2924 } else { 2925 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n", 2926 vsi->num_queue_pairs - 1); 2927 return -EINVAL; 2928 } 2929 2930 cur_tx_itr &= ~I40E_ITR_DYNAMIC; 2931 cur_rx_itr &= ~I40E_ITR_DYNAMIC; 2932 2933 /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */ 2934 if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) { 2935 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n"); 2936 return -EINVAL; 2937 } 2938 2939 if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) { 2940 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n", 2941 INTRL_REG_TO_USEC(I40E_MAX_INTRL)); 2942 return -EINVAL; 2943 } 2944 2945 if (ec->rx_coalesce_usecs != cur_rx_itr && 2946 ec->use_adaptive_rx_coalesce) { 2947 netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n"); 2948 return -EINVAL; 2949 } 2950 2951 if (ec->rx_coalesce_usecs > I40E_MAX_ITR) { 2952 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n"); 2953 return -EINVAL; 2954 } 2955 2956 if (ec->tx_coalesce_usecs != cur_tx_itr && 2957 ec->use_adaptive_tx_coalesce) { 2958 netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n"); 2959 return -EINVAL; 2960 } 2961 2962 if (ec->tx_coalesce_usecs > I40E_MAX_ITR) { 2963 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n"); 2964 return -EINVAL; 2965 } 2966 2967 if (ec->use_adaptive_rx_coalesce && !cur_rx_itr) 2968 ec->rx_coalesce_usecs = I40E_MIN_ITR; 2969 2970 if (ec->use_adaptive_tx_coalesce && !cur_tx_itr) 2971 ec->tx_coalesce_usecs = I40E_MIN_ITR; 2972 2973 intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high); 2974 vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg); 2975 if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) { 2976 netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n", 2977 vsi->int_rate_limit); 2978 } 2979 2980 /* rx and tx usecs has per queue value. If user doesn't specify the 2981 * queue, apply to all queues. 2982 */ 2983 if (queue < 0) { 2984 for (i = 0; i < vsi->num_queue_pairs; i++) 2985 i40e_set_itr_per_queue(vsi, ec, i); 2986 } else { 2987 i40e_set_itr_per_queue(vsi, ec, queue); 2988 } 2989 2990 return 0; 2991 } 2992 2993 /** 2994 * i40e_set_coalesce - set coalesce settings for every queue on the netdev 2995 * @netdev: the netdev to change 2996 * @ec: ethtool coalesce settings 2997 * @kernel_coal: ethtool CQE mode setting structure 2998 * @extack: extack for reporting error messages 2999 * 3000 * This will set each queue to the same coalesce settings. 3001 **/ 3002 static int i40e_set_coalesce(struct net_device *netdev, 3003 struct ethtool_coalesce *ec, 3004 struct kernel_ethtool_coalesce *kernel_coal, 3005 struct netlink_ext_ack *extack) 3006 { 3007 return __i40e_set_coalesce(netdev, ec, -1); 3008 } 3009 3010 /** 3011 * i40e_set_per_queue_coalesce - set specific queue's coalesce settings 3012 * @netdev: the netdev to change 3013 * @ec: ethtool's coalesce settings 3014 * @queue: the queue to change 3015 * 3016 * Sets the specified queue's coalesce settings. 3017 **/ 3018 static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue, 3019 struct ethtool_coalesce *ec) 3020 { 3021 return __i40e_set_coalesce(netdev, ec, queue); 3022 } 3023 3024 /** 3025 * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type 3026 * @pf: pointer to the physical function struct 3027 * @cmd: ethtool rxnfc command 3028 * 3029 * Returns Success if the flow is supported, else Invalid Input. 3030 **/ 3031 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd) 3032 { 3033 struct i40e_hw *hw = &pf->hw; 3034 u8 flow_pctype = 0; 3035 u64 i_set = 0; 3036 3037 cmd->data = 0; 3038 3039 switch (cmd->flow_type) { 3040 case TCP_V4_FLOW: 3041 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3042 break; 3043 case UDP_V4_FLOW: 3044 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3045 break; 3046 case TCP_V6_FLOW: 3047 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3048 break; 3049 case UDP_V6_FLOW: 3050 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3051 break; 3052 case SCTP_V4_FLOW: 3053 case AH_ESP_V4_FLOW: 3054 case AH_V4_FLOW: 3055 case ESP_V4_FLOW: 3056 case IPV4_FLOW: 3057 case SCTP_V6_FLOW: 3058 case AH_ESP_V6_FLOW: 3059 case AH_V6_FLOW: 3060 case ESP_V6_FLOW: 3061 case IPV6_FLOW: 3062 /* Default is src/dest for IP, no matter the L4 hashing */ 3063 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 3064 break; 3065 default: 3066 return -EINVAL; 3067 } 3068 3069 /* Read flow based hash input set register */ 3070 if (flow_pctype) { 3071 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, 3072 flow_pctype)) | 3073 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, 3074 flow_pctype)) << 32); 3075 } 3076 3077 /* Process bits of hash input set */ 3078 if (i_set) { 3079 if (i_set & I40E_L4_SRC_MASK) 3080 cmd->data |= RXH_L4_B_0_1; 3081 if (i_set & I40E_L4_DST_MASK) 3082 cmd->data |= RXH_L4_B_2_3; 3083 3084 if (cmd->flow_type == TCP_V4_FLOW || 3085 cmd->flow_type == UDP_V4_FLOW) { 3086 if (i_set & I40E_L3_SRC_MASK) 3087 cmd->data |= RXH_IP_SRC; 3088 if (i_set & I40E_L3_DST_MASK) 3089 cmd->data |= RXH_IP_DST; 3090 } else if (cmd->flow_type == TCP_V6_FLOW || 3091 cmd->flow_type == UDP_V6_FLOW) { 3092 if (i_set & I40E_L3_V6_SRC_MASK) 3093 cmd->data |= RXH_IP_SRC; 3094 if (i_set & I40E_L3_V6_DST_MASK) 3095 cmd->data |= RXH_IP_DST; 3096 } 3097 } 3098 3099 return 0; 3100 } 3101 3102 /** 3103 * i40e_check_mask - Check whether a mask field is set 3104 * @mask: the full mask value 3105 * @field: mask of the field to check 3106 * 3107 * If the given mask is fully set, return positive value. If the mask for the 3108 * field is fully unset, return zero. Otherwise return a negative error code. 3109 **/ 3110 static int i40e_check_mask(u64 mask, u64 field) 3111 { 3112 u64 value = mask & field; 3113 3114 if (value == field) 3115 return 1; 3116 else if (!value) 3117 return 0; 3118 else 3119 return -1; 3120 } 3121 3122 /** 3123 * i40e_parse_rx_flow_user_data - Deconstruct user-defined data 3124 * @fsp: pointer to rx flow specification 3125 * @data: pointer to userdef data structure for storage 3126 * 3127 * Read the user-defined data and deconstruct the value into a structure. No 3128 * other code should read the user-defined data, so as to ensure that every 3129 * place consistently reads the value correctly. 3130 * 3131 * The user-defined field is a 64bit Big Endian format value, which we 3132 * deconstruct by reading bits or bit fields from it. Single bit flags shall 3133 * be defined starting from the highest bits, while small bit field values 3134 * shall be defined starting from the lowest bits. 3135 * 3136 * Returns 0 if the data is valid, and non-zero if the userdef data is invalid 3137 * and the filter should be rejected. The data structure will always be 3138 * modified even if FLOW_EXT is not set. 3139 * 3140 **/ 3141 static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 3142 struct i40e_rx_flow_userdef *data) 3143 { 3144 u64 value, mask; 3145 int valid; 3146 3147 /* Zero memory first so it's always consistent. */ 3148 memset(data, 0, sizeof(*data)); 3149 3150 if (!(fsp->flow_type & FLOW_EXT)) 3151 return 0; 3152 3153 value = be64_to_cpu(*((__be64 *)fsp->h_ext.data)); 3154 mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data)); 3155 3156 #define I40E_USERDEF_FLEX_WORD GENMASK_ULL(15, 0) 3157 #define I40E_USERDEF_FLEX_OFFSET GENMASK_ULL(31, 16) 3158 #define I40E_USERDEF_FLEX_FILTER GENMASK_ULL(31, 0) 3159 3160 valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER); 3161 if (valid < 0) { 3162 return -EINVAL; 3163 } else if (valid) { 3164 data->flex_word = value & I40E_USERDEF_FLEX_WORD; 3165 data->flex_offset = 3166 (value & I40E_USERDEF_FLEX_OFFSET) >> 16; 3167 data->flex_filter = true; 3168 } 3169 3170 return 0; 3171 } 3172 3173 /** 3174 * i40e_fill_rx_flow_user_data - Fill in user-defined data field 3175 * @fsp: pointer to rx_flow specification 3176 * @data: pointer to return userdef data 3177 * 3178 * Reads the userdef data structure and properly fills in the user defined 3179 * fields of the rx_flow_spec. 3180 **/ 3181 static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 3182 struct i40e_rx_flow_userdef *data) 3183 { 3184 u64 value = 0, mask = 0; 3185 3186 if (data->flex_filter) { 3187 value |= data->flex_word; 3188 value |= (u64)data->flex_offset << 16; 3189 mask |= I40E_USERDEF_FLEX_FILTER; 3190 } 3191 3192 if (value || mask) 3193 fsp->flow_type |= FLOW_EXT; 3194 3195 *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value); 3196 *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask); 3197 } 3198 3199 /** 3200 * i40e_get_ethtool_fdir_all - Populates the rule count of a command 3201 * @pf: Pointer to the physical function struct 3202 * @cmd: The command to get or set Rx flow classification rules 3203 * @rule_locs: Array of used rule locations 3204 * 3205 * This function populates both the total and actual rule count of 3206 * the ethtool flow classification command 3207 * 3208 * Returns 0 on success or -EMSGSIZE if entry not found 3209 **/ 3210 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf, 3211 struct ethtool_rxnfc *cmd, 3212 u32 *rule_locs) 3213 { 3214 struct i40e_fdir_filter *rule; 3215 struct hlist_node *node2; 3216 int cnt = 0; 3217 3218 /* report total rule count */ 3219 cmd->data = i40e_get_fd_cnt_all(pf); 3220 3221 hlist_for_each_entry_safe(rule, node2, 3222 &pf->fdir_filter_list, fdir_node) { 3223 if (cnt == cmd->rule_cnt) 3224 return -EMSGSIZE; 3225 3226 rule_locs[cnt] = rule->fd_id; 3227 cnt++; 3228 } 3229 3230 cmd->rule_cnt = cnt; 3231 3232 return 0; 3233 } 3234 3235 /** 3236 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow 3237 * @pf: Pointer to the physical function struct 3238 * @cmd: The command to get or set Rx flow classification rules 3239 * 3240 * This function looks up a filter based on the Rx flow classification 3241 * command and fills the flow spec info for it if found 3242 * 3243 * Returns 0 on success or -EINVAL if filter not found 3244 **/ 3245 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf, 3246 struct ethtool_rxnfc *cmd) 3247 { 3248 struct ethtool_rx_flow_spec *fsp = 3249 (struct ethtool_rx_flow_spec *)&cmd->fs; 3250 struct i40e_rx_flow_userdef userdef = {0}; 3251 struct i40e_fdir_filter *rule = NULL; 3252 struct hlist_node *node2; 3253 u64 input_set; 3254 u16 index; 3255 3256 hlist_for_each_entry_safe(rule, node2, 3257 &pf->fdir_filter_list, fdir_node) { 3258 if (fsp->location <= rule->fd_id) 3259 break; 3260 } 3261 3262 if (!rule || fsp->location != rule->fd_id) 3263 return -EINVAL; 3264 3265 fsp->flow_type = rule->flow_type; 3266 if (fsp->flow_type == IP_USER_FLOW) { 3267 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4; 3268 fsp->h_u.usr_ip4_spec.proto = 0; 3269 fsp->m_u.usr_ip4_spec.proto = 0; 3270 } 3271 3272 if (fsp->flow_type == IPV6_USER_FLOW || 3273 fsp->flow_type == UDP_V6_FLOW || 3274 fsp->flow_type == TCP_V6_FLOW || 3275 fsp->flow_type == SCTP_V6_FLOW) { 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_ip6_spec.psrc = rule->dst_port; 3281 fsp->h_u.tcp_ip6_spec.pdst = rule->src_port; 3282 memcpy(fsp->h_u.tcp_ip6_spec.ip6dst, rule->src_ip6, 3283 sizeof(__be32) * 4); 3284 memcpy(fsp->h_u.tcp_ip6_spec.ip6src, rule->dst_ip6, 3285 sizeof(__be32) * 4); 3286 } else { 3287 /* Reverse the src and dest notion, since the HW views them 3288 * from Tx perspective where as the user expects it from 3289 * Rx filter view. 3290 */ 3291 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port; 3292 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port; 3293 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip; 3294 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip; 3295 } 3296 3297 switch (rule->flow_type) { 3298 case SCTP_V4_FLOW: 3299 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP; 3300 break; 3301 case TCP_V4_FLOW: 3302 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3303 break; 3304 case UDP_V4_FLOW: 3305 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3306 break; 3307 case SCTP_V6_FLOW: 3308 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP; 3309 break; 3310 case TCP_V6_FLOW: 3311 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3312 break; 3313 case UDP_V6_FLOW: 3314 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3315 break; 3316 case IP_USER_FLOW: 3317 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER; 3318 break; 3319 case IPV6_USER_FLOW: 3320 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER; 3321 break; 3322 default: 3323 /* If we have stored a filter with a flow type not listed here 3324 * it is almost certainly a driver bug. WARN(), and then 3325 * assign the input_set as if all fields are enabled to avoid 3326 * reading unassigned memory. 3327 */ 3328 WARN(1, "Missing input set index for flow_type %d\n", 3329 rule->flow_type); 3330 input_set = 0xFFFFFFFFFFFFFFFFULL; 3331 goto no_input_set; 3332 } 3333 3334 input_set = i40e_read_fd_input_set(pf, index); 3335 3336 no_input_set: 3337 if (input_set & I40E_L3_V6_SRC_MASK) { 3338 fsp->m_u.tcp_ip6_spec.ip6src[0] = htonl(0xFFFFFFFF); 3339 fsp->m_u.tcp_ip6_spec.ip6src[1] = htonl(0xFFFFFFFF); 3340 fsp->m_u.tcp_ip6_spec.ip6src[2] = htonl(0xFFFFFFFF); 3341 fsp->m_u.tcp_ip6_spec.ip6src[3] = htonl(0xFFFFFFFF); 3342 } 3343 3344 if (input_set & I40E_L3_V6_DST_MASK) { 3345 fsp->m_u.tcp_ip6_spec.ip6dst[0] = htonl(0xFFFFFFFF); 3346 fsp->m_u.tcp_ip6_spec.ip6dst[1] = htonl(0xFFFFFFFF); 3347 fsp->m_u.tcp_ip6_spec.ip6dst[2] = htonl(0xFFFFFFFF); 3348 fsp->m_u.tcp_ip6_spec.ip6dst[3] = htonl(0xFFFFFFFF); 3349 } 3350 3351 if (input_set & I40E_L3_SRC_MASK) 3352 fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF); 3353 3354 if (input_set & I40E_L3_DST_MASK) 3355 fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF); 3356 3357 if (input_set & I40E_L4_SRC_MASK) 3358 fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF); 3359 3360 if (input_set & I40E_L4_DST_MASK) 3361 fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF); 3362 3363 if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET) 3364 fsp->ring_cookie = RX_CLS_FLOW_DISC; 3365 else 3366 fsp->ring_cookie = rule->q_index; 3367 3368 if (rule->vlan_tag) { 3369 fsp->h_ext.vlan_etype = rule->vlan_etype; 3370 fsp->m_ext.vlan_etype = htons(0xFFFF); 3371 fsp->h_ext.vlan_tci = rule->vlan_tag; 3372 fsp->m_ext.vlan_tci = htons(0xFFFF); 3373 fsp->flow_type |= FLOW_EXT; 3374 } 3375 3376 if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) { 3377 struct i40e_vsi *vsi; 3378 3379 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi); 3380 if (vsi && vsi->type == I40E_VSI_SRIOV) { 3381 /* VFs are zero-indexed by the driver, but ethtool 3382 * expects them to be one-indexed, so add one here 3383 */ 3384 u64 ring_vf = vsi->vf_id + 1; 3385 3386 ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF; 3387 fsp->ring_cookie |= ring_vf; 3388 } 3389 } 3390 3391 if (rule->flex_filter) { 3392 userdef.flex_filter = true; 3393 userdef.flex_word = be16_to_cpu(rule->flex_word); 3394 userdef.flex_offset = rule->flex_offset; 3395 } 3396 3397 i40e_fill_rx_flow_user_data(fsp, &userdef); 3398 3399 return 0; 3400 } 3401 3402 /** 3403 * i40e_get_rxnfc - command to get RX flow classification rules 3404 * @netdev: network interface device structure 3405 * @cmd: ethtool rxnfc command 3406 * @rule_locs: pointer to store rule data 3407 * 3408 * Returns Success if the command is supported. 3409 **/ 3410 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd, 3411 u32 *rule_locs) 3412 { 3413 struct i40e_netdev_priv *np = netdev_priv(netdev); 3414 struct i40e_vsi *vsi = np->vsi; 3415 struct i40e_pf *pf = vsi->back; 3416 int ret = -EOPNOTSUPP; 3417 3418 switch (cmd->cmd) { 3419 case ETHTOOL_GRXRINGS: 3420 cmd->data = vsi->rss_size; 3421 ret = 0; 3422 break; 3423 case ETHTOOL_GRXFH: 3424 ret = i40e_get_rss_hash_opts(pf, cmd); 3425 break; 3426 case ETHTOOL_GRXCLSRLCNT: 3427 cmd->rule_cnt = pf->fdir_pf_active_filters; 3428 /* report total rule count */ 3429 cmd->data = i40e_get_fd_cnt_all(pf); 3430 ret = 0; 3431 break; 3432 case ETHTOOL_GRXCLSRULE: 3433 ret = i40e_get_ethtool_fdir_entry(pf, cmd); 3434 break; 3435 case ETHTOOL_GRXCLSRLALL: 3436 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs); 3437 break; 3438 default: 3439 break; 3440 } 3441 3442 return ret; 3443 } 3444 3445 /** 3446 * i40e_get_rss_hash_bits - Read RSS Hash bits from register 3447 * @nfc: pointer to user request 3448 * @i_setc: bits currently set 3449 * 3450 * Returns value of bits to be set per user request 3451 **/ 3452 static u64 i40e_get_rss_hash_bits(struct ethtool_rxnfc *nfc, u64 i_setc) 3453 { 3454 u64 i_set = i_setc; 3455 u64 src_l3 = 0, dst_l3 = 0; 3456 3457 if (nfc->data & RXH_L4_B_0_1) 3458 i_set |= I40E_L4_SRC_MASK; 3459 else 3460 i_set &= ~I40E_L4_SRC_MASK; 3461 if (nfc->data & RXH_L4_B_2_3) 3462 i_set |= I40E_L4_DST_MASK; 3463 else 3464 i_set &= ~I40E_L4_DST_MASK; 3465 3466 if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) { 3467 src_l3 = I40E_L3_V6_SRC_MASK; 3468 dst_l3 = I40E_L3_V6_DST_MASK; 3469 } else if (nfc->flow_type == TCP_V4_FLOW || 3470 nfc->flow_type == UDP_V4_FLOW) { 3471 src_l3 = I40E_L3_SRC_MASK; 3472 dst_l3 = I40E_L3_DST_MASK; 3473 } else { 3474 /* Any other flow type are not supported here */ 3475 return i_set; 3476 } 3477 3478 if (nfc->data & RXH_IP_SRC) 3479 i_set |= src_l3; 3480 else 3481 i_set &= ~src_l3; 3482 if (nfc->data & RXH_IP_DST) 3483 i_set |= dst_l3; 3484 else 3485 i_set &= ~dst_l3; 3486 3487 return i_set; 3488 } 3489 3490 /** 3491 * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash 3492 * @pf: pointer to the physical function struct 3493 * @nfc: ethtool rxnfc command 3494 * 3495 * Returns Success if the flow input set is supported. 3496 **/ 3497 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc) 3498 { 3499 struct i40e_hw *hw = &pf->hw; 3500 u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) | 3501 ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32); 3502 u8 flow_pctype = 0; 3503 u64 i_set, i_setc; 3504 3505 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 3506 dev_err(&pf->pdev->dev, 3507 "Change of RSS hash input set is not supported when MFP mode is enabled\n"); 3508 return -EOPNOTSUPP; 3509 } 3510 3511 /* RSS does not support anything other than hashing 3512 * to queues on src and dst IPs and ports 3513 */ 3514 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 3515 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 3516 return -EINVAL; 3517 3518 switch (nfc->flow_type) { 3519 case TCP_V4_FLOW: 3520 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3521 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3522 hena |= 3523 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK); 3524 break; 3525 case TCP_V6_FLOW: 3526 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3527 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3528 hena |= 3529 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK); 3530 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3531 hena |= 3532 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK); 3533 break; 3534 case UDP_V4_FLOW: 3535 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3536 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3537 hena |= 3538 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) | 3539 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP); 3540 3541 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 3542 break; 3543 case UDP_V6_FLOW: 3544 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3545 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3546 hena |= 3547 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) | 3548 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP); 3549 3550 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 3551 break; 3552 case AH_ESP_V4_FLOW: 3553 case AH_V4_FLOW: 3554 case ESP_V4_FLOW: 3555 case SCTP_V4_FLOW: 3556 if ((nfc->data & RXH_L4_B_0_1) || 3557 (nfc->data & RXH_L4_B_2_3)) 3558 return -EINVAL; 3559 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER); 3560 break; 3561 case AH_ESP_V6_FLOW: 3562 case AH_V6_FLOW: 3563 case ESP_V6_FLOW: 3564 case SCTP_V6_FLOW: 3565 if ((nfc->data & RXH_L4_B_0_1) || 3566 (nfc->data & RXH_L4_B_2_3)) 3567 return -EINVAL; 3568 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER); 3569 break; 3570 case IPV4_FLOW: 3571 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) | 3572 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 3573 break; 3574 case IPV6_FLOW: 3575 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) | 3576 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 3577 break; 3578 default: 3579 return -EINVAL; 3580 } 3581 3582 if (flow_pctype) { 3583 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, 3584 flow_pctype)) | 3585 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, 3586 flow_pctype)) << 32); 3587 i_set = i40e_get_rss_hash_bits(nfc, i_setc); 3588 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_pctype), 3589 (u32)i_set); 3590 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_pctype), 3591 (u32)(i_set >> 32)); 3592 hena |= BIT_ULL(flow_pctype); 3593 } 3594 3595 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena); 3596 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32)); 3597 i40e_flush(hw); 3598 3599 return 0; 3600 } 3601 3602 /** 3603 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry 3604 * @vsi: Pointer to the targeted VSI 3605 * @input: The filter to update or NULL to indicate deletion 3606 * @sw_idx: Software index to the filter 3607 * @cmd: The command to get or set Rx flow classification rules 3608 * 3609 * This function updates (or deletes) a Flow Director entry from 3610 * the hlist of the corresponding PF 3611 * 3612 * Returns 0 on success 3613 **/ 3614 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi, 3615 struct i40e_fdir_filter *input, 3616 u16 sw_idx, 3617 struct ethtool_rxnfc *cmd) 3618 { 3619 struct i40e_fdir_filter *rule, *parent; 3620 struct i40e_pf *pf = vsi->back; 3621 struct hlist_node *node2; 3622 int err = -EINVAL; 3623 3624 parent = NULL; 3625 rule = NULL; 3626 3627 hlist_for_each_entry_safe(rule, node2, 3628 &pf->fdir_filter_list, fdir_node) { 3629 /* hash found, or no matching entry */ 3630 if (rule->fd_id >= sw_idx) 3631 break; 3632 parent = rule; 3633 } 3634 3635 /* if there is an old rule occupying our place remove it */ 3636 if (rule && (rule->fd_id == sw_idx)) { 3637 /* Remove this rule, since we're either deleting it, or 3638 * replacing it. 3639 */ 3640 err = i40e_add_del_fdir(vsi, rule, false); 3641 hlist_del(&rule->fdir_node); 3642 kfree(rule); 3643 pf->fdir_pf_active_filters--; 3644 } 3645 3646 /* If we weren't given an input, this is a delete, so just return the 3647 * error code indicating if there was an entry at the requested slot 3648 */ 3649 if (!input) 3650 return err; 3651 3652 /* Otherwise, install the new rule as requested */ 3653 INIT_HLIST_NODE(&input->fdir_node); 3654 3655 /* add filter to the list */ 3656 if (parent) 3657 hlist_add_behind(&input->fdir_node, &parent->fdir_node); 3658 else 3659 hlist_add_head(&input->fdir_node, 3660 &pf->fdir_filter_list); 3661 3662 /* update counts */ 3663 pf->fdir_pf_active_filters++; 3664 3665 return 0; 3666 } 3667 3668 /** 3669 * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table 3670 * @pf: pointer to PF structure 3671 * 3672 * This function searches the list of filters and determines which FLX_PIT 3673 * entries are still required. It will prune any entries which are no longer 3674 * in use after the deletion. 3675 **/ 3676 static void i40e_prune_flex_pit_list(struct i40e_pf *pf) 3677 { 3678 struct i40e_flex_pit *entry, *tmp; 3679 struct i40e_fdir_filter *rule; 3680 3681 /* First, we'll check the l3 table */ 3682 list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) { 3683 bool found = false; 3684 3685 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3686 if (rule->flow_type != IP_USER_FLOW) 3687 continue; 3688 if (rule->flex_filter && 3689 rule->flex_offset == entry->src_offset) { 3690 found = true; 3691 break; 3692 } 3693 } 3694 3695 /* If we didn't find the filter, then we can prune this entry 3696 * from the list. 3697 */ 3698 if (!found) { 3699 list_del(&entry->list); 3700 kfree(entry); 3701 } 3702 } 3703 3704 /* Followed by the L4 table */ 3705 list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) { 3706 bool found = false; 3707 3708 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3709 /* Skip this filter if it's L3, since we already 3710 * checked those in the above loop 3711 */ 3712 if (rule->flow_type == IP_USER_FLOW) 3713 continue; 3714 if (rule->flex_filter && 3715 rule->flex_offset == entry->src_offset) { 3716 found = true; 3717 break; 3718 } 3719 } 3720 3721 /* If we didn't find the filter, then we can prune this entry 3722 * from the list. 3723 */ 3724 if (!found) { 3725 list_del(&entry->list); 3726 kfree(entry); 3727 } 3728 } 3729 } 3730 3731 /** 3732 * i40e_del_fdir_entry - Deletes a Flow Director filter entry 3733 * @vsi: Pointer to the targeted VSI 3734 * @cmd: The command to get or set Rx flow classification rules 3735 * 3736 * The function removes a Flow Director filter entry from the 3737 * hlist of the corresponding PF 3738 * 3739 * Returns 0 on success 3740 */ 3741 static int i40e_del_fdir_entry(struct i40e_vsi *vsi, 3742 struct ethtool_rxnfc *cmd) 3743 { 3744 struct ethtool_rx_flow_spec *fsp = 3745 (struct ethtool_rx_flow_spec *)&cmd->fs; 3746 struct i40e_pf *pf = vsi->back; 3747 int ret = 0; 3748 3749 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 3750 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 3751 return -EBUSY; 3752 3753 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 3754 return -EBUSY; 3755 3756 ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd); 3757 3758 i40e_prune_flex_pit_list(pf); 3759 3760 i40e_fdir_check_and_reenable(pf); 3761 return ret; 3762 } 3763 3764 /** 3765 * i40e_unused_pit_index - Find an unused PIT index for given list 3766 * @pf: the PF data structure 3767 * 3768 * Find the first unused flexible PIT index entry. We search both the L3 and 3769 * L4 flexible PIT lists so that the returned index is unique and unused by 3770 * either currently programmed L3 or L4 filters. We use a bit field as storage 3771 * to track which indexes are already used. 3772 **/ 3773 static u8 i40e_unused_pit_index(struct i40e_pf *pf) 3774 { 3775 unsigned long available_index = 0xFF; 3776 struct i40e_flex_pit *entry; 3777 3778 /* We need to make sure that the new index isn't in use by either L3 3779 * or L4 filters so that IP_USER_FLOW filters can program both L3 and 3780 * L4 to use the same index. 3781 */ 3782 3783 list_for_each_entry(entry, &pf->l4_flex_pit_list, list) 3784 clear_bit(entry->pit_index, &available_index); 3785 3786 list_for_each_entry(entry, &pf->l3_flex_pit_list, list) 3787 clear_bit(entry->pit_index, &available_index); 3788 3789 return find_first_bit(&available_index, 8); 3790 } 3791 3792 /** 3793 * i40e_find_flex_offset - Find an existing flex src_offset 3794 * @flex_pit_list: L3 or L4 flex PIT list 3795 * @src_offset: new src_offset to find 3796 * 3797 * Searches the flex_pit_list for an existing offset. If no offset is 3798 * currently programmed, then this will return an ERR_PTR if there is no space 3799 * to add a new offset, otherwise it returns NULL. 3800 **/ 3801 static 3802 struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list, 3803 u16 src_offset) 3804 { 3805 struct i40e_flex_pit *entry; 3806 int size = 0; 3807 3808 /* Search for the src_offset first. If we find a matching entry 3809 * already programmed, we can simply re-use it. 3810 */ 3811 list_for_each_entry(entry, flex_pit_list, list) { 3812 size++; 3813 if (entry->src_offset == src_offset) 3814 return entry; 3815 } 3816 3817 /* If we haven't found an entry yet, then the provided src offset has 3818 * not yet been programmed. We will program the src offset later on, 3819 * but we need to indicate whether there is enough space to do so 3820 * here. We'll make use of ERR_PTR for this purpose. 3821 */ 3822 if (size >= I40E_FLEX_PIT_TABLE_SIZE) 3823 return ERR_PTR(-ENOSPC); 3824 3825 return NULL; 3826 } 3827 3828 /** 3829 * i40e_add_flex_offset - Add src_offset to flex PIT table list 3830 * @flex_pit_list: L3 or L4 flex PIT list 3831 * @src_offset: new src_offset to add 3832 * @pit_index: the PIT index to program 3833 * 3834 * This function programs the new src_offset to the list. It is expected that 3835 * i40e_find_flex_offset has already been tried and returned NULL, indicating 3836 * that this offset is not programmed, and that the list has enough space to 3837 * store another offset. 3838 * 3839 * Returns 0 on success, and negative value on error. 3840 **/ 3841 static int i40e_add_flex_offset(struct list_head *flex_pit_list, 3842 u16 src_offset, 3843 u8 pit_index) 3844 { 3845 struct i40e_flex_pit *new_pit, *entry; 3846 3847 new_pit = kzalloc(sizeof(*entry), GFP_KERNEL); 3848 if (!new_pit) 3849 return -ENOMEM; 3850 3851 new_pit->src_offset = src_offset; 3852 new_pit->pit_index = pit_index; 3853 3854 /* We need to insert this item such that the list is sorted by 3855 * src_offset in ascending order. 3856 */ 3857 list_for_each_entry(entry, flex_pit_list, list) { 3858 if (new_pit->src_offset < entry->src_offset) { 3859 list_add_tail(&new_pit->list, &entry->list); 3860 return 0; 3861 } 3862 3863 /* If we found an entry with our offset already programmed we 3864 * can simply return here, after freeing the memory. However, 3865 * if the pit_index does not match we need to report an error. 3866 */ 3867 if (new_pit->src_offset == entry->src_offset) { 3868 int err = 0; 3869 3870 /* If the PIT index is not the same we can't re-use 3871 * the entry, so we must report an error. 3872 */ 3873 if (new_pit->pit_index != entry->pit_index) 3874 err = -EINVAL; 3875 3876 kfree(new_pit); 3877 return err; 3878 } 3879 } 3880 3881 /* If we reached here, then we haven't yet added the item. This means 3882 * that we should add the item at the end of the list. 3883 */ 3884 list_add_tail(&new_pit->list, flex_pit_list); 3885 return 0; 3886 } 3887 3888 /** 3889 * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table 3890 * @pf: Pointer to the PF structure 3891 * @flex_pit_list: list of flexible src offsets in use 3892 * @flex_pit_start: index to first entry for this section of the table 3893 * 3894 * In order to handle flexible data, the hardware uses a table of values 3895 * called the FLX_PIT table. This table is used to indicate which sections of 3896 * the input correspond to what PIT index values. Unfortunately, hardware is 3897 * very restrictive about programming this table. Entries must be ordered by 3898 * src_offset in ascending order, without duplicates. Additionally, unused 3899 * entries must be set to the unused index value, and must have valid size and 3900 * length according to the src_offset ordering. 3901 * 3902 * This function will reprogram the FLX_PIT register from a book-keeping 3903 * structure that we guarantee is already ordered correctly, and has no more 3904 * than 3 entries. 3905 * 3906 * To make things easier, we only support flexible values of one word length, 3907 * rather than allowing variable length flexible values. 3908 **/ 3909 static void __i40e_reprogram_flex_pit(struct i40e_pf *pf, 3910 struct list_head *flex_pit_list, 3911 int flex_pit_start) 3912 { 3913 struct i40e_flex_pit *entry = NULL; 3914 u16 last_offset = 0; 3915 int i = 0, j = 0; 3916 3917 /* First, loop over the list of flex PIT entries, and reprogram the 3918 * registers. 3919 */ 3920 list_for_each_entry(entry, flex_pit_list, list) { 3921 /* We have to be careful when programming values for the 3922 * largest SRC_OFFSET value. It is possible that adding 3923 * additional empty values at the end would overflow the space 3924 * for the SRC_OFFSET in the FLX_PIT register. To avoid this, 3925 * we check here and add the empty values prior to adding the 3926 * largest value. 3927 * 3928 * To determine this, we will use a loop from i+1 to 3, which 3929 * will determine whether the unused entries would have valid 3930 * SRC_OFFSET. Note that there cannot be extra entries past 3931 * this value, because the only valid values would have been 3932 * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not 3933 * have been added to the list in the first place. 3934 */ 3935 for (j = i + 1; j < 3; j++) { 3936 u16 offset = entry->src_offset + j; 3937 int index = flex_pit_start + i; 3938 u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 3939 1, 3940 offset - 3); 3941 3942 if (offset > I40E_MAX_FLEX_SRC_OFFSET) { 3943 i40e_write_rx_ctl(&pf->hw, 3944 I40E_PRTQF_FLX_PIT(index), 3945 value); 3946 i++; 3947 } 3948 } 3949 3950 /* Now, we can program the actual value into the table */ 3951 i40e_write_rx_ctl(&pf->hw, 3952 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 3953 I40E_FLEX_PREP_VAL(entry->pit_index + 50, 3954 1, 3955 entry->src_offset)); 3956 i++; 3957 } 3958 3959 /* In order to program the last entries in the table, we need to 3960 * determine the valid offset. If the list is empty, we'll just start 3961 * with 0. Otherwise, we'll start with the last item offset and add 1. 3962 * This ensures that all entries have valid sizes. If we don't do this 3963 * correctly, the hardware will disable flexible field parsing. 3964 */ 3965 if (!list_empty(flex_pit_list)) 3966 last_offset = list_prev_entry(entry, list)->src_offset + 1; 3967 3968 for (; i < 3; i++, last_offset++) { 3969 i40e_write_rx_ctl(&pf->hw, 3970 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 3971 I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 3972 1, 3973 last_offset)); 3974 } 3975 } 3976 3977 /** 3978 * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change 3979 * @pf: pointer to the PF structure 3980 * 3981 * This function reprograms both the L3 and L4 FLX_PIT tables. See the 3982 * internal helper function for implementation details. 3983 **/ 3984 static void i40e_reprogram_flex_pit(struct i40e_pf *pf) 3985 { 3986 __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list, 3987 I40E_FLEX_PIT_IDX_START_L3); 3988 3989 __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list, 3990 I40E_FLEX_PIT_IDX_START_L4); 3991 3992 /* We also need to program the L3 and L4 GLQF ORT register */ 3993 i40e_write_rx_ctl(&pf->hw, 3994 I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX), 3995 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3, 3996 3, 1)); 3997 3998 i40e_write_rx_ctl(&pf->hw, 3999 I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX), 4000 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4, 4001 3, 1)); 4002 } 4003 4004 /** 4005 * i40e_flow_str - Converts a flow_type into a human readable string 4006 * @fsp: the flow specification 4007 * 4008 * Currently only flow types we support are included here, and the string 4009 * value attempts to match what ethtool would use to configure this flow type. 4010 **/ 4011 static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp) 4012 { 4013 switch (fsp->flow_type & ~FLOW_EXT) { 4014 case TCP_V4_FLOW: 4015 return "tcp4"; 4016 case UDP_V4_FLOW: 4017 return "udp4"; 4018 case SCTP_V4_FLOW: 4019 return "sctp4"; 4020 case IP_USER_FLOW: 4021 return "ip4"; 4022 case TCP_V6_FLOW: 4023 return "tcp6"; 4024 case UDP_V6_FLOW: 4025 return "udp6"; 4026 case SCTP_V6_FLOW: 4027 return "sctp6"; 4028 case IPV6_USER_FLOW: 4029 return "ip6"; 4030 default: 4031 return "unknown"; 4032 } 4033 } 4034 4035 /** 4036 * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index 4037 * @pit_index: PIT index to convert 4038 * 4039 * Returns the mask for a given PIT index. Will return 0 if the pit_index is 4040 * of range. 4041 **/ 4042 static u64 i40e_pit_index_to_mask(int pit_index) 4043 { 4044 switch (pit_index) { 4045 case 0: 4046 return I40E_FLEX_50_MASK; 4047 case 1: 4048 return I40E_FLEX_51_MASK; 4049 case 2: 4050 return I40E_FLEX_52_MASK; 4051 case 3: 4052 return I40E_FLEX_53_MASK; 4053 case 4: 4054 return I40E_FLEX_54_MASK; 4055 case 5: 4056 return I40E_FLEX_55_MASK; 4057 case 6: 4058 return I40E_FLEX_56_MASK; 4059 case 7: 4060 return I40E_FLEX_57_MASK; 4061 default: 4062 return 0; 4063 } 4064 } 4065 4066 /** 4067 * i40e_print_input_set - Show changes between two input sets 4068 * @vsi: the vsi being configured 4069 * @old: the old input set 4070 * @new: the new input set 4071 * 4072 * Print the difference between old and new input sets by showing which series 4073 * of words are toggled on or off. Only displays the bits we actually support 4074 * changing. 4075 **/ 4076 static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new) 4077 { 4078 struct i40e_pf *pf = vsi->back; 4079 bool old_value, new_value; 4080 int i; 4081 4082 old_value = !!(old & I40E_L3_SRC_MASK); 4083 new_value = !!(new & I40E_L3_SRC_MASK); 4084 if (old_value != new_value) 4085 netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n", 4086 old_value ? "ON" : "OFF", 4087 new_value ? "ON" : "OFF"); 4088 4089 old_value = !!(old & I40E_L3_DST_MASK); 4090 new_value = !!(new & I40E_L3_DST_MASK); 4091 if (old_value != new_value) 4092 netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n", 4093 old_value ? "ON" : "OFF", 4094 new_value ? "ON" : "OFF"); 4095 4096 old_value = !!(old & I40E_L4_SRC_MASK); 4097 new_value = !!(new & I40E_L4_SRC_MASK); 4098 if (old_value != new_value) 4099 netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n", 4100 old_value ? "ON" : "OFF", 4101 new_value ? "ON" : "OFF"); 4102 4103 old_value = !!(old & I40E_L4_DST_MASK); 4104 new_value = !!(new & I40E_L4_DST_MASK); 4105 if (old_value != new_value) 4106 netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n", 4107 old_value ? "ON" : "OFF", 4108 new_value ? "ON" : "OFF"); 4109 4110 old_value = !!(old & I40E_VERIFY_TAG_MASK); 4111 new_value = !!(new & I40E_VERIFY_TAG_MASK); 4112 if (old_value != new_value) 4113 netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n", 4114 old_value ? "ON" : "OFF", 4115 new_value ? "ON" : "OFF"); 4116 4117 /* Show change of flexible filter entries */ 4118 for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) { 4119 u64 flex_mask = i40e_pit_index_to_mask(i); 4120 4121 old_value = !!(old & flex_mask); 4122 new_value = !!(new & flex_mask); 4123 if (old_value != new_value) 4124 netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n", 4125 i, 4126 old_value ? "ON" : "OFF", 4127 new_value ? "ON" : "OFF"); 4128 } 4129 4130 netif_info(pf, drv, vsi->netdev, " Current input set: %0llx\n", 4131 old); 4132 netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n", 4133 new); 4134 } 4135 4136 /** 4137 * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid 4138 * @vsi: pointer to the targeted VSI 4139 * @fsp: pointer to Rx flow specification 4140 * @userdef: userdefined data from flow specification 4141 * 4142 * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support 4143 * for partial matches exists with a few limitations. First, hardware only 4144 * supports masking by word boundary (2 bytes) and not per individual bit. 4145 * Second, hardware is limited to using one mask for a flow type and cannot 4146 * use a separate mask for each filter. 4147 * 4148 * To support these limitations, if we already have a configured filter for 4149 * the specified type, this function enforces that new filters of the type 4150 * match the configured input set. Otherwise, if we do not have a filter of 4151 * the specified type, we allow the input set to be updated to match the 4152 * desired filter. 4153 * 4154 * To help ensure that administrators understand why filters weren't displayed 4155 * as supported, we print a diagnostic message displaying how the input set 4156 * would change and warning to delete the preexisting filters if required. 4157 * 4158 * Returns 0 on successful input set match, and a negative return code on 4159 * failure. 4160 **/ 4161 static int i40e_check_fdir_input_set(struct i40e_vsi *vsi, 4162 struct ethtool_rx_flow_spec *fsp, 4163 struct i40e_rx_flow_userdef *userdef) 4164 { 4165 static const __be32 ipv6_full_mask[4] = {cpu_to_be32(0xffffffff), 4166 cpu_to_be32(0xffffffff), cpu_to_be32(0xffffffff), 4167 cpu_to_be32(0xffffffff)}; 4168 struct ethtool_tcpip6_spec *tcp_ip6_spec; 4169 struct ethtool_usrip6_spec *usr_ip6_spec; 4170 struct ethtool_tcpip4_spec *tcp_ip4_spec; 4171 struct ethtool_usrip4_spec *usr_ip4_spec; 4172 struct i40e_pf *pf = vsi->back; 4173 u64 current_mask, new_mask; 4174 bool new_flex_offset = false; 4175 bool flex_l3 = false; 4176 u16 *fdir_filter_count; 4177 u16 index, src_offset = 0; 4178 u8 pit_index = 0; 4179 int err; 4180 4181 switch (fsp->flow_type & ~FLOW_EXT) { 4182 case SCTP_V4_FLOW: 4183 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP; 4184 fdir_filter_count = &pf->fd_sctp4_filter_cnt; 4185 break; 4186 case TCP_V4_FLOW: 4187 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 4188 fdir_filter_count = &pf->fd_tcp4_filter_cnt; 4189 break; 4190 case UDP_V4_FLOW: 4191 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 4192 fdir_filter_count = &pf->fd_udp4_filter_cnt; 4193 break; 4194 case SCTP_V6_FLOW: 4195 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP; 4196 fdir_filter_count = &pf->fd_sctp6_filter_cnt; 4197 break; 4198 case TCP_V6_FLOW: 4199 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 4200 fdir_filter_count = &pf->fd_tcp6_filter_cnt; 4201 break; 4202 case UDP_V6_FLOW: 4203 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 4204 fdir_filter_count = &pf->fd_udp6_filter_cnt; 4205 break; 4206 case IP_USER_FLOW: 4207 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER; 4208 fdir_filter_count = &pf->fd_ip4_filter_cnt; 4209 flex_l3 = true; 4210 break; 4211 case IPV6_USER_FLOW: 4212 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER; 4213 fdir_filter_count = &pf->fd_ip6_filter_cnt; 4214 flex_l3 = true; 4215 break; 4216 default: 4217 return -EOPNOTSUPP; 4218 } 4219 4220 /* Read the current input set from register memory. */ 4221 current_mask = i40e_read_fd_input_set(pf, index); 4222 new_mask = current_mask; 4223 4224 /* Determine, if any, the required changes to the input set in order 4225 * to support the provided mask. 4226 * 4227 * Hardware only supports masking at word (2 byte) granularity and does 4228 * not support full bitwise masking. This implementation simplifies 4229 * even further and only supports fully enabled or fully disabled 4230 * masks for each field, even though we could split the ip4src and 4231 * ip4dst fields. 4232 */ 4233 switch (fsp->flow_type & ~FLOW_EXT) { 4234 case SCTP_V4_FLOW: 4235 new_mask &= ~I40E_VERIFY_TAG_MASK; 4236 fallthrough; 4237 case TCP_V4_FLOW: 4238 case UDP_V4_FLOW: 4239 tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec; 4240 4241 /* IPv4 source address */ 4242 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 4243 new_mask |= I40E_L3_SRC_MASK; 4244 else if (!tcp_ip4_spec->ip4src) 4245 new_mask &= ~I40E_L3_SRC_MASK; 4246 else 4247 return -EOPNOTSUPP; 4248 4249 /* IPv4 destination address */ 4250 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 4251 new_mask |= I40E_L3_DST_MASK; 4252 else if (!tcp_ip4_spec->ip4dst) 4253 new_mask &= ~I40E_L3_DST_MASK; 4254 else 4255 return -EOPNOTSUPP; 4256 4257 /* L4 source port */ 4258 if (tcp_ip4_spec->psrc == htons(0xFFFF)) 4259 new_mask |= I40E_L4_SRC_MASK; 4260 else if (!tcp_ip4_spec->psrc) 4261 new_mask &= ~I40E_L4_SRC_MASK; 4262 else 4263 return -EOPNOTSUPP; 4264 4265 /* L4 destination port */ 4266 if (tcp_ip4_spec->pdst == htons(0xFFFF)) 4267 new_mask |= I40E_L4_DST_MASK; 4268 else if (!tcp_ip4_spec->pdst) 4269 new_mask &= ~I40E_L4_DST_MASK; 4270 else 4271 return -EOPNOTSUPP; 4272 4273 /* Filtering on Type of Service is not supported. */ 4274 if (tcp_ip4_spec->tos) 4275 return -EOPNOTSUPP; 4276 4277 break; 4278 case SCTP_V6_FLOW: 4279 new_mask &= ~I40E_VERIFY_TAG_MASK; 4280 fallthrough; 4281 case TCP_V6_FLOW: 4282 case UDP_V6_FLOW: 4283 tcp_ip6_spec = &fsp->m_u.tcp_ip6_spec; 4284 4285 /* Check if user provided IPv6 source address. */ 4286 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6src, 4287 (struct in6_addr *)&ipv6_full_mask)) 4288 new_mask |= I40E_L3_V6_SRC_MASK; 4289 else if (ipv6_addr_any((struct in6_addr *) 4290 &tcp_ip6_spec->ip6src)) 4291 new_mask &= ~I40E_L3_V6_SRC_MASK; 4292 else 4293 return -EOPNOTSUPP; 4294 4295 /* Check if user provided destination address. */ 4296 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6dst, 4297 (struct in6_addr *)&ipv6_full_mask)) 4298 new_mask |= I40E_L3_V6_DST_MASK; 4299 else if (ipv6_addr_any((struct in6_addr *) 4300 &tcp_ip6_spec->ip6dst)) 4301 new_mask &= ~I40E_L3_V6_DST_MASK; 4302 else 4303 return -EOPNOTSUPP; 4304 4305 /* L4 source port */ 4306 if (tcp_ip6_spec->psrc == htons(0xFFFF)) 4307 new_mask |= I40E_L4_SRC_MASK; 4308 else if (!tcp_ip6_spec->psrc) 4309 new_mask &= ~I40E_L4_SRC_MASK; 4310 else 4311 return -EOPNOTSUPP; 4312 4313 /* L4 destination port */ 4314 if (tcp_ip6_spec->pdst == htons(0xFFFF)) 4315 new_mask |= I40E_L4_DST_MASK; 4316 else if (!tcp_ip6_spec->pdst) 4317 new_mask &= ~I40E_L4_DST_MASK; 4318 else 4319 return -EOPNOTSUPP; 4320 4321 /* Filtering on Traffic Classes is not supported. */ 4322 if (tcp_ip6_spec->tclass) 4323 return -EOPNOTSUPP; 4324 break; 4325 case IP_USER_FLOW: 4326 usr_ip4_spec = &fsp->m_u.usr_ip4_spec; 4327 4328 /* IPv4 source address */ 4329 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 4330 new_mask |= I40E_L3_SRC_MASK; 4331 else if (!usr_ip4_spec->ip4src) 4332 new_mask &= ~I40E_L3_SRC_MASK; 4333 else 4334 return -EOPNOTSUPP; 4335 4336 /* IPv4 destination address */ 4337 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 4338 new_mask |= I40E_L3_DST_MASK; 4339 else if (!usr_ip4_spec->ip4dst) 4340 new_mask &= ~I40E_L3_DST_MASK; 4341 else 4342 return -EOPNOTSUPP; 4343 4344 /* First 4 bytes of L4 header */ 4345 if (usr_ip4_spec->l4_4_bytes == htonl(0xFFFFFFFF)) 4346 new_mask |= I40E_L4_SRC_MASK | I40E_L4_DST_MASK; 4347 else if (!usr_ip4_spec->l4_4_bytes) 4348 new_mask &= ~(I40E_L4_SRC_MASK | I40E_L4_DST_MASK); 4349 else 4350 return -EOPNOTSUPP; 4351 4352 /* Filtering on Type of Service is not supported. */ 4353 if (usr_ip4_spec->tos) 4354 return -EOPNOTSUPP; 4355 4356 /* Filtering on IP version is not supported */ 4357 if (usr_ip4_spec->ip_ver) 4358 return -EINVAL; 4359 4360 /* Filtering on L4 protocol is not supported */ 4361 if (usr_ip4_spec->proto) 4362 return -EINVAL; 4363 4364 break; 4365 case IPV6_USER_FLOW: 4366 usr_ip6_spec = &fsp->m_u.usr_ip6_spec; 4367 4368 /* Check if user provided IPv6 source address. */ 4369 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6src, 4370 (struct in6_addr *)&ipv6_full_mask)) 4371 new_mask |= I40E_L3_V6_SRC_MASK; 4372 else if (ipv6_addr_any((struct in6_addr *) 4373 &usr_ip6_spec->ip6src)) 4374 new_mask &= ~I40E_L3_V6_SRC_MASK; 4375 else 4376 return -EOPNOTSUPP; 4377 4378 /* Check if user provided destination address. */ 4379 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6dst, 4380 (struct in6_addr *)&ipv6_full_mask)) 4381 new_mask |= I40E_L3_V6_DST_MASK; 4382 else if (ipv6_addr_any((struct in6_addr *) 4383 &usr_ip6_spec->ip6src)) 4384 new_mask &= ~I40E_L3_V6_DST_MASK; 4385 else 4386 return -EOPNOTSUPP; 4387 4388 if (usr_ip6_spec->l4_4_bytes == htonl(0xFFFFFFFF)) 4389 new_mask |= I40E_L4_SRC_MASK | I40E_L4_DST_MASK; 4390 else if (!usr_ip6_spec->l4_4_bytes) 4391 new_mask &= ~(I40E_L4_SRC_MASK | I40E_L4_DST_MASK); 4392 else 4393 return -EOPNOTSUPP; 4394 4395 /* Filtering on Traffic class is not supported. */ 4396 if (usr_ip6_spec->tclass) 4397 return -EOPNOTSUPP; 4398 4399 /* Filtering on L4 protocol is not supported */ 4400 if (usr_ip6_spec->l4_proto) 4401 return -EINVAL; 4402 4403 break; 4404 default: 4405 return -EOPNOTSUPP; 4406 } 4407 4408 if (fsp->flow_type & FLOW_EXT) { 4409 /* Allow only 802.1Q and no etype defined, as 4410 * later it's modified to 0x8100 4411 */ 4412 if (fsp->h_ext.vlan_etype != htons(ETH_P_8021Q) && 4413 fsp->h_ext.vlan_etype != 0) 4414 return -EOPNOTSUPP; 4415 if (fsp->m_ext.vlan_tci == htons(0xFFFF)) 4416 new_mask |= I40E_VLAN_SRC_MASK; 4417 else 4418 new_mask &= ~I40E_VLAN_SRC_MASK; 4419 } 4420 4421 /* First, clear all flexible filter entries */ 4422 new_mask &= ~I40E_FLEX_INPUT_MASK; 4423 4424 /* If we have a flexible filter, try to add this offset to the correct 4425 * flexible filter PIT list. Once finished, we can update the mask. 4426 * If the src_offset changed, we will get a new mask value which will 4427 * trigger an input set change. 4428 */ 4429 if (userdef->flex_filter) { 4430 struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL; 4431 4432 /* Flexible offset must be even, since the flexible payload 4433 * must be aligned on 2-byte boundary. 4434 */ 4435 if (userdef->flex_offset & 0x1) { 4436 dev_warn(&pf->pdev->dev, 4437 "Flexible data offset must be 2-byte aligned\n"); 4438 return -EINVAL; 4439 } 4440 4441 src_offset = userdef->flex_offset >> 1; 4442 4443 /* FLX_PIT source offset value is only so large */ 4444 if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) { 4445 dev_warn(&pf->pdev->dev, 4446 "Flexible data must reside within first 64 bytes of the packet payload\n"); 4447 return -EINVAL; 4448 } 4449 4450 /* See if this offset has already been programmed. If we get 4451 * an ERR_PTR, then the filter is not safe to add. Otherwise, 4452 * if we get a NULL pointer, this means we will need to add 4453 * the offset. 4454 */ 4455 flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list, 4456 src_offset); 4457 if (IS_ERR(flex_pit)) 4458 return PTR_ERR(flex_pit); 4459 4460 /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown) 4461 * packet types, and thus we need to program both L3 and L4 4462 * flexible values. These must have identical flexible index, 4463 * as otherwise we can't correctly program the input set. So 4464 * we'll find both an L3 and L4 index and make sure they are 4465 * the same. 4466 */ 4467 if (flex_l3) { 4468 l3_flex_pit = 4469 i40e_find_flex_offset(&pf->l3_flex_pit_list, 4470 src_offset); 4471 if (IS_ERR(l3_flex_pit)) 4472 return PTR_ERR(l3_flex_pit); 4473 4474 if (flex_pit) { 4475 /* If we already had a matching L4 entry, we 4476 * need to make sure that the L3 entry we 4477 * obtained uses the same index. 4478 */ 4479 if (l3_flex_pit) { 4480 if (l3_flex_pit->pit_index != 4481 flex_pit->pit_index) { 4482 return -EINVAL; 4483 } 4484 } else { 4485 new_flex_offset = true; 4486 } 4487 } else { 4488 flex_pit = l3_flex_pit; 4489 } 4490 } 4491 4492 /* If we didn't find an existing flex offset, we need to 4493 * program a new one. However, we don't immediately program it 4494 * here because we will wait to program until after we check 4495 * that it is safe to change the input set. 4496 */ 4497 if (!flex_pit) { 4498 new_flex_offset = true; 4499 pit_index = i40e_unused_pit_index(pf); 4500 } else { 4501 pit_index = flex_pit->pit_index; 4502 } 4503 4504 /* Update the mask with the new offset */ 4505 new_mask |= i40e_pit_index_to_mask(pit_index); 4506 } 4507 4508 /* If the mask and flexible filter offsets for this filter match the 4509 * currently programmed values we don't need any input set change, so 4510 * this filter is safe to install. 4511 */ 4512 if (new_mask == current_mask && !new_flex_offset) 4513 return 0; 4514 4515 netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n", 4516 i40e_flow_str(fsp)); 4517 i40e_print_input_set(vsi, current_mask, new_mask); 4518 if (new_flex_offset) { 4519 netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d", 4520 pit_index, src_offset); 4521 } 4522 4523 /* Hardware input sets are global across multiple ports, so even the 4524 * main port cannot change them when in MFP mode as this would impact 4525 * any filters on the other ports. 4526 */ 4527 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 4528 netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n"); 4529 return -EOPNOTSUPP; 4530 } 4531 4532 /* This filter requires us to update the input set. However, hardware 4533 * only supports one input set per flow type, and does not support 4534 * separate masks for each filter. This means that we can only support 4535 * a single mask for all filters of a specific type. 4536 * 4537 * If we have preexisting filters, they obviously depend on the 4538 * current programmed input set. Display a diagnostic message in this 4539 * case explaining why the filter could not be accepted. 4540 */ 4541 if (*fdir_filter_count) { 4542 netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n", 4543 i40e_flow_str(fsp), 4544 *fdir_filter_count); 4545 return -EOPNOTSUPP; 4546 } 4547 4548 i40e_write_fd_input_set(pf, index, new_mask); 4549 4550 /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented 4551 * frames. If we're programming the input set for IPv4/Other, we also 4552 * need to program the IPv4/Fragmented input set. Since we don't have 4553 * separate support, we'll always assume and enforce that the two flow 4554 * types must have matching input sets. 4555 */ 4556 if (index == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) 4557 i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4, 4558 new_mask); 4559 4560 /* Add the new offset and update table, if necessary */ 4561 if (new_flex_offset) { 4562 err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset, 4563 pit_index); 4564 if (err) 4565 return err; 4566 4567 if (flex_l3) { 4568 err = i40e_add_flex_offset(&pf->l3_flex_pit_list, 4569 src_offset, 4570 pit_index); 4571 if (err) 4572 return err; 4573 } 4574 4575 i40e_reprogram_flex_pit(pf); 4576 } 4577 4578 return 0; 4579 } 4580 4581 /** 4582 * i40e_match_fdir_filter - Return true of two filters match 4583 * @a: pointer to filter struct 4584 * @b: pointer to filter struct 4585 * 4586 * Returns true if the two filters match exactly the same criteria. I.e. they 4587 * match the same flow type and have the same parameters. We don't need to 4588 * check any input-set since all filters of the same flow type must use the 4589 * same input set. 4590 **/ 4591 static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a, 4592 struct i40e_fdir_filter *b) 4593 { 4594 /* The filters do not much if any of these criteria differ. */ 4595 if (a->dst_ip != b->dst_ip || 4596 a->src_ip != b->src_ip || 4597 a->dst_port != b->dst_port || 4598 a->src_port != b->src_port || 4599 a->flow_type != b->flow_type || 4600 a->ipl4_proto != b->ipl4_proto || 4601 a->vlan_tag != b->vlan_tag || 4602 a->vlan_etype != b->vlan_etype) 4603 return false; 4604 4605 return true; 4606 } 4607 4608 /** 4609 * i40e_disallow_matching_filters - Check that new filters differ 4610 * @vsi: pointer to the targeted VSI 4611 * @input: new filter to check 4612 * 4613 * Due to hardware limitations, it is not possible for two filters that match 4614 * similar criteria to be programmed at the same time. This is true for a few 4615 * reasons: 4616 * 4617 * (a) all filters matching a particular flow type must use the same input 4618 * set, that is they must match the same criteria. 4619 * (b) different flow types will never match the same packet, as the flow type 4620 * is decided by hardware before checking which rules apply. 4621 * (c) hardware has no way to distinguish which order filters apply in. 4622 * 4623 * Due to this, we can't really support using the location data to order 4624 * filters in the hardware parsing. It is technically possible for the user to 4625 * request two filters matching the same criteria but which select different 4626 * queues. In this case, rather than keep both filters in the list, we reject 4627 * the 2nd filter when the user requests adding it. 4628 * 4629 * This avoids needing to track location for programming the filter to 4630 * hardware, and ensures that we avoid some strange scenarios involving 4631 * deleting filters which match the same criteria. 4632 **/ 4633 static int i40e_disallow_matching_filters(struct i40e_vsi *vsi, 4634 struct i40e_fdir_filter *input) 4635 { 4636 struct i40e_pf *pf = vsi->back; 4637 struct i40e_fdir_filter *rule; 4638 struct hlist_node *node2; 4639 4640 /* Loop through every filter, and check that it doesn't match */ 4641 hlist_for_each_entry_safe(rule, node2, 4642 &pf->fdir_filter_list, fdir_node) { 4643 /* Don't check the filters match if they share the same fd_id, 4644 * since the new filter is actually just updating the target 4645 * of the old filter. 4646 */ 4647 if (rule->fd_id == input->fd_id) 4648 continue; 4649 4650 /* If any filters match, then print a warning message to the 4651 * kernel message buffer and bail out. 4652 */ 4653 if (i40e_match_fdir_filter(rule, input)) { 4654 dev_warn(&pf->pdev->dev, 4655 "Existing user defined filter %d already matches this flow.\n", 4656 rule->fd_id); 4657 return -EINVAL; 4658 } 4659 } 4660 4661 return 0; 4662 } 4663 4664 /** 4665 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters 4666 * @vsi: pointer to the targeted VSI 4667 * @cmd: command to get or set RX flow classification rules 4668 * 4669 * Add Flow Director filters for a specific flow spec based on their 4670 * protocol. Returns 0 if the filters were successfully added. 4671 **/ 4672 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi, 4673 struct ethtool_rxnfc *cmd) 4674 { 4675 struct i40e_rx_flow_userdef userdef; 4676 struct ethtool_rx_flow_spec *fsp; 4677 struct i40e_fdir_filter *input; 4678 u16 dest_vsi = 0, q_index = 0; 4679 struct i40e_pf *pf; 4680 int ret = -EINVAL; 4681 u8 dest_ctl; 4682 4683 if (!vsi) 4684 return -EINVAL; 4685 pf = vsi->back; 4686 4687 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED)) 4688 return -EOPNOTSUPP; 4689 4690 if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state)) 4691 return -ENOSPC; 4692 4693 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 4694 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 4695 return -EBUSY; 4696 4697 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 4698 return -EBUSY; 4699 4700 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs; 4701 4702 /* Parse the user-defined field */ 4703 if (i40e_parse_rx_flow_user_data(fsp, &userdef)) 4704 return -EINVAL; 4705 4706 /* Extended MAC field is not supported */ 4707 if (fsp->flow_type & FLOW_MAC_EXT) 4708 return -EINVAL; 4709 4710 ret = i40e_check_fdir_input_set(vsi, fsp, &userdef); 4711 if (ret) 4712 return ret; 4713 4714 if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort + 4715 pf->hw.func_caps.fd_filters_guaranteed)) { 4716 return -EINVAL; 4717 } 4718 4719 /* ring_cookie is either the drop index, or is a mask of the queue 4720 * index and VF id we wish to target. 4721 */ 4722 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) { 4723 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 4724 } else { 4725 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie); 4726 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie); 4727 4728 if (!vf) { 4729 if (ring >= vsi->num_queue_pairs) 4730 return -EINVAL; 4731 dest_vsi = vsi->id; 4732 } else { 4733 /* VFs are zero-indexed, so we subtract one here */ 4734 vf--; 4735 4736 if (vf >= pf->num_alloc_vfs) 4737 return -EINVAL; 4738 if (ring >= pf->vf[vf].num_queue_pairs) 4739 return -EINVAL; 4740 dest_vsi = pf->vf[vf].lan_vsi_id; 4741 } 4742 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX; 4743 q_index = ring; 4744 } 4745 4746 input = kzalloc(sizeof(*input), GFP_KERNEL); 4747 4748 if (!input) 4749 return -ENOMEM; 4750 4751 input->fd_id = fsp->location; 4752 input->q_index = q_index; 4753 input->dest_vsi = dest_vsi; 4754 input->dest_ctl = dest_ctl; 4755 input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID; 4756 input->cnt_index = I40E_FD_SB_STAT_IDX(pf->hw.pf_id); 4757 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4758 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4759 input->flow_type = fsp->flow_type & ~FLOW_EXT; 4760 4761 input->vlan_etype = fsp->h_ext.vlan_etype; 4762 if (!fsp->m_ext.vlan_etype && fsp->h_ext.vlan_tci) 4763 input->vlan_etype = cpu_to_be16(ETH_P_8021Q); 4764 if (fsp->m_ext.vlan_tci && input->vlan_etype) 4765 input->vlan_tag = fsp->h_ext.vlan_tci; 4766 if (input->flow_type == IPV6_USER_FLOW || 4767 input->flow_type == UDP_V6_FLOW || 4768 input->flow_type == TCP_V6_FLOW || 4769 input->flow_type == SCTP_V6_FLOW) { 4770 /* Reverse the src and dest notion, since the HW expects them 4771 * to be from Tx perspective where as the input from user is 4772 * from Rx filter view. 4773 */ 4774 input->ipl4_proto = fsp->h_u.usr_ip6_spec.l4_proto; 4775 input->dst_port = fsp->h_u.tcp_ip6_spec.psrc; 4776 input->src_port = fsp->h_u.tcp_ip6_spec.pdst; 4777 memcpy(input->dst_ip6, fsp->h_u.ah_ip6_spec.ip6src, 4778 sizeof(__be32) * 4); 4779 memcpy(input->src_ip6, fsp->h_u.ah_ip6_spec.ip6dst, 4780 sizeof(__be32) * 4); 4781 } else { 4782 /* Reverse the src and dest notion, since the HW expects them 4783 * to be from Tx perspective where as the input from user is 4784 * from Rx filter view. 4785 */ 4786 input->ipl4_proto = fsp->h_u.usr_ip4_spec.proto; 4787 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc; 4788 input->src_port = fsp->h_u.tcp_ip4_spec.pdst; 4789 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4790 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4791 } 4792 4793 if (userdef.flex_filter) { 4794 input->flex_filter = true; 4795 input->flex_word = cpu_to_be16(userdef.flex_word); 4796 input->flex_offset = userdef.flex_offset; 4797 } 4798 4799 /* Avoid programming two filters with identical match criteria. */ 4800 ret = i40e_disallow_matching_filters(vsi, input); 4801 if (ret) 4802 goto free_filter_memory; 4803 4804 /* Add the input filter to the fdir_input_list, possibly replacing 4805 * a previous filter. Do not free the input structure after adding it 4806 * to the list as this would cause a use-after-free bug. 4807 */ 4808 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL); 4809 ret = i40e_add_del_fdir(vsi, input, true); 4810 if (ret) 4811 goto remove_sw_rule; 4812 return 0; 4813 4814 remove_sw_rule: 4815 hlist_del(&input->fdir_node); 4816 pf->fdir_pf_active_filters--; 4817 free_filter_memory: 4818 kfree(input); 4819 return ret; 4820 } 4821 4822 /** 4823 * i40e_set_rxnfc - command to set RX flow classification rules 4824 * @netdev: network interface device structure 4825 * @cmd: ethtool rxnfc command 4826 * 4827 * Returns Success if the command is supported. 4828 **/ 4829 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd) 4830 { 4831 struct i40e_netdev_priv *np = netdev_priv(netdev); 4832 struct i40e_vsi *vsi = np->vsi; 4833 struct i40e_pf *pf = vsi->back; 4834 int ret = -EOPNOTSUPP; 4835 4836 switch (cmd->cmd) { 4837 case ETHTOOL_SRXFH: 4838 ret = i40e_set_rss_hash_opt(pf, cmd); 4839 break; 4840 case ETHTOOL_SRXCLSRLINS: 4841 ret = i40e_add_fdir_ethtool(vsi, cmd); 4842 break; 4843 case ETHTOOL_SRXCLSRLDEL: 4844 ret = i40e_del_fdir_entry(vsi, cmd); 4845 break; 4846 default: 4847 break; 4848 } 4849 4850 return ret; 4851 } 4852 4853 /** 4854 * i40e_max_channels - get Max number of combined channels supported 4855 * @vsi: vsi pointer 4856 **/ 4857 static unsigned int i40e_max_channels(struct i40e_vsi *vsi) 4858 { 4859 /* TODO: This code assumes DCB and FD is disabled for now. */ 4860 return vsi->alloc_queue_pairs; 4861 } 4862 4863 /** 4864 * i40e_get_channels - Get the current channels enabled and max supported etc. 4865 * @dev: network interface device structure 4866 * @ch: ethtool channels structure 4867 * 4868 * We don't support separate tx and rx queues as channels. The other count 4869 * represents how many queues are being used for control. max_combined counts 4870 * how many queue pairs we can support. They may not be mapped 1 to 1 with 4871 * q_vectors since we support a lot more queue pairs than q_vectors. 4872 **/ 4873 static void i40e_get_channels(struct net_device *dev, 4874 struct ethtool_channels *ch) 4875 { 4876 struct i40e_netdev_priv *np = netdev_priv(dev); 4877 struct i40e_vsi *vsi = np->vsi; 4878 struct i40e_pf *pf = vsi->back; 4879 4880 /* report maximum channels */ 4881 ch->max_combined = i40e_max_channels(vsi); 4882 4883 /* report info for other vector */ 4884 ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0; 4885 ch->max_other = ch->other_count; 4886 4887 /* Note: This code assumes DCB is disabled for now. */ 4888 ch->combined_count = vsi->num_queue_pairs; 4889 } 4890 4891 /** 4892 * i40e_set_channels - Set the new channels count. 4893 * @dev: network interface device structure 4894 * @ch: ethtool channels structure 4895 * 4896 * The new channels count may not be the same as requested by the user 4897 * since it gets rounded down to a power of 2 value. 4898 **/ 4899 static int i40e_set_channels(struct net_device *dev, 4900 struct ethtool_channels *ch) 4901 { 4902 const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 4903 struct i40e_netdev_priv *np = netdev_priv(dev); 4904 unsigned int count = ch->combined_count; 4905 struct i40e_vsi *vsi = np->vsi; 4906 struct i40e_pf *pf = vsi->back; 4907 struct i40e_fdir_filter *rule; 4908 struct hlist_node *node2; 4909 int new_count; 4910 int err = 0; 4911 4912 /* We do not support setting channels for any other VSI at present */ 4913 if (vsi->type != I40E_VSI_MAIN) 4914 return -EINVAL; 4915 4916 /* We do not support setting channels via ethtool when TCs are 4917 * configured through mqprio 4918 */ 4919 if (pf->flags & I40E_FLAG_TC_MQPRIO) 4920 return -EINVAL; 4921 4922 /* verify they are not requesting separate vectors */ 4923 if (!count || ch->rx_count || ch->tx_count) 4924 return -EINVAL; 4925 4926 /* verify other_count has not changed */ 4927 if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0)) 4928 return -EINVAL; 4929 4930 /* verify the number of channels does not exceed hardware limits */ 4931 if (count > i40e_max_channels(vsi)) 4932 return -EINVAL; 4933 4934 /* verify that the number of channels does not invalidate any current 4935 * flow director rules 4936 */ 4937 hlist_for_each_entry_safe(rule, node2, 4938 &pf->fdir_filter_list, fdir_node) { 4939 if (rule->dest_ctl != drop && count <= rule->q_index) { 4940 dev_warn(&pf->pdev->dev, 4941 "Existing user defined filter %d assigns flow to queue %d\n", 4942 rule->fd_id, rule->q_index); 4943 err = -EINVAL; 4944 } 4945 } 4946 4947 if (err) { 4948 dev_err(&pf->pdev->dev, 4949 "Existing filter rules must be deleted to reduce combined channel count to %d\n", 4950 count); 4951 return err; 4952 } 4953 4954 /* update feature limits from largest to smallest supported values */ 4955 /* TODO: Flow director limit, DCB etc */ 4956 4957 /* use rss_reconfig to rebuild with new queue count and update traffic 4958 * class queue mapping 4959 */ 4960 new_count = i40e_reconfig_rss_queues(pf, count); 4961 if (new_count > 0) 4962 return 0; 4963 else 4964 return -EINVAL; 4965 } 4966 4967 /** 4968 * i40e_get_rxfh_key_size - get the RSS hash key size 4969 * @netdev: network interface device structure 4970 * 4971 * Returns the table size. 4972 **/ 4973 static u32 i40e_get_rxfh_key_size(struct net_device *netdev) 4974 { 4975 return I40E_HKEY_ARRAY_SIZE; 4976 } 4977 4978 /** 4979 * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size 4980 * @netdev: network interface device structure 4981 * 4982 * Returns the table size. 4983 **/ 4984 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev) 4985 { 4986 return I40E_HLUT_ARRAY_SIZE; 4987 } 4988 4989 /** 4990 * i40e_get_rxfh - get the rx flow hash indirection table 4991 * @netdev: network interface device structure 4992 * @indir: indirection table 4993 * @key: hash key 4994 * @hfunc: hash function 4995 * 4996 * Reads the indirection table directly from the hardware. Returns 0 on 4997 * success. 4998 **/ 4999 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 5000 u8 *hfunc) 5001 { 5002 struct i40e_netdev_priv *np = netdev_priv(netdev); 5003 struct i40e_vsi *vsi = np->vsi; 5004 u8 *lut, *seed = NULL; 5005 int ret; 5006 u16 i; 5007 5008 if (hfunc) 5009 *hfunc = ETH_RSS_HASH_TOP; 5010 5011 if (!indir) 5012 return 0; 5013 5014 seed = key; 5015 lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 5016 if (!lut) 5017 return -ENOMEM; 5018 ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE); 5019 if (ret) 5020 goto out; 5021 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 5022 indir[i] = (u32)(lut[i]); 5023 5024 out: 5025 kfree(lut); 5026 5027 return ret; 5028 } 5029 5030 /** 5031 * i40e_set_rxfh - set the rx flow hash indirection table 5032 * @netdev: network interface device structure 5033 * @indir: indirection table 5034 * @key: hash key 5035 * @hfunc: hash function to use 5036 * 5037 * Returns -EINVAL if the table specifies an invalid queue id, otherwise 5038 * returns 0 after programming the table. 5039 **/ 5040 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir, 5041 const u8 *key, const u8 hfunc) 5042 { 5043 struct i40e_netdev_priv *np = netdev_priv(netdev); 5044 struct i40e_vsi *vsi = np->vsi; 5045 struct i40e_pf *pf = vsi->back; 5046 u8 *seed = NULL; 5047 u16 i; 5048 5049 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) 5050 return -EOPNOTSUPP; 5051 5052 if (key) { 5053 if (!vsi->rss_hkey_user) { 5054 vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE, 5055 GFP_KERNEL); 5056 if (!vsi->rss_hkey_user) 5057 return -ENOMEM; 5058 } 5059 memcpy(vsi->rss_hkey_user, key, I40E_HKEY_ARRAY_SIZE); 5060 seed = vsi->rss_hkey_user; 5061 } 5062 if (!vsi->rss_lut_user) { 5063 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 5064 if (!vsi->rss_lut_user) 5065 return -ENOMEM; 5066 } 5067 5068 /* Each 32 bits pointed by 'indir' is stored with a lut entry */ 5069 if (indir) 5070 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 5071 vsi->rss_lut_user[i] = (u8)(indir[i]); 5072 else 5073 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE, 5074 vsi->rss_size); 5075 5076 return i40e_config_rss(vsi, seed, vsi->rss_lut_user, 5077 I40E_HLUT_ARRAY_SIZE); 5078 } 5079 5080 /** 5081 * i40e_get_priv_flags - report device private flags 5082 * @dev: network interface device structure 5083 * 5084 * The get string set count and the string set should be matched for each 5085 * flag returned. Add new strings for each flag to the i40e_gstrings_priv_flags 5086 * array. 5087 * 5088 * Returns a u32 bitmap of flags. 5089 **/ 5090 static u32 i40e_get_priv_flags(struct net_device *dev) 5091 { 5092 struct i40e_netdev_priv *np = netdev_priv(dev); 5093 struct i40e_vsi *vsi = np->vsi; 5094 struct i40e_pf *pf = vsi->back; 5095 u32 i, j, ret_flags = 0; 5096 5097 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 5098 const struct i40e_priv_flags *priv_flags; 5099 5100 priv_flags = &i40e_gstrings_priv_flags[i]; 5101 5102 if (priv_flags->flag & pf->flags) 5103 ret_flags |= BIT(i); 5104 } 5105 5106 if (pf->hw.pf_id != 0) 5107 return ret_flags; 5108 5109 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 5110 const struct i40e_priv_flags *priv_flags; 5111 5112 priv_flags = &i40e_gl_gstrings_priv_flags[j]; 5113 5114 if (priv_flags->flag & pf->flags) 5115 ret_flags |= BIT(i + j); 5116 } 5117 5118 return ret_flags; 5119 } 5120 5121 /** 5122 * i40e_set_priv_flags - set private flags 5123 * @dev: network interface device structure 5124 * @flags: bit flags to be set 5125 **/ 5126 static int i40e_set_priv_flags(struct net_device *dev, u32 flags) 5127 { 5128 struct i40e_netdev_priv *np = netdev_priv(dev); 5129 u64 orig_flags, new_flags, changed_flags; 5130 enum i40e_admin_queue_err adq_err; 5131 struct i40e_vsi *vsi = np->vsi; 5132 struct i40e_pf *pf = vsi->back; 5133 u32 reset_needed = 0; 5134 i40e_status status; 5135 u32 i, j; 5136 5137 orig_flags = READ_ONCE(pf->flags); 5138 new_flags = orig_flags; 5139 5140 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 5141 const struct i40e_priv_flags *priv_flags; 5142 5143 priv_flags = &i40e_gstrings_priv_flags[i]; 5144 5145 if (flags & BIT(i)) 5146 new_flags |= priv_flags->flag; 5147 else 5148 new_flags &= ~(priv_flags->flag); 5149 5150 /* If this is a read-only flag, it can't be changed */ 5151 if (priv_flags->read_only && 5152 ((orig_flags ^ new_flags) & ~BIT(i))) 5153 return -EOPNOTSUPP; 5154 } 5155 5156 if (pf->hw.pf_id != 0) 5157 goto flags_complete; 5158 5159 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 5160 const struct i40e_priv_flags *priv_flags; 5161 5162 priv_flags = &i40e_gl_gstrings_priv_flags[j]; 5163 5164 if (flags & BIT(i + j)) 5165 new_flags |= priv_flags->flag; 5166 else 5167 new_flags &= ~(priv_flags->flag); 5168 5169 /* If this is a read-only flag, it can't be changed */ 5170 if (priv_flags->read_only && 5171 ((orig_flags ^ new_flags) & ~BIT(i))) 5172 return -EOPNOTSUPP; 5173 } 5174 5175 flags_complete: 5176 changed_flags = orig_flags ^ new_flags; 5177 5178 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) 5179 reset_needed = I40E_PF_RESET_AND_REBUILD_FLAG; 5180 if (changed_flags & (I40E_FLAG_VEB_STATS_ENABLED | 5181 I40E_FLAG_LEGACY_RX | I40E_FLAG_SOURCE_PRUNING_DISABLED)) 5182 reset_needed = BIT(__I40E_PF_RESET_REQUESTED); 5183 5184 /* Before we finalize any flag changes, we need to perform some 5185 * checks to ensure that the changes are supported and safe. 5186 */ 5187 5188 /* ATR eviction is not supported on all devices */ 5189 if ((new_flags & I40E_FLAG_HW_ATR_EVICT_ENABLED) && 5190 !(pf->hw_features & I40E_HW_ATR_EVICT_CAPABLE)) 5191 return -EOPNOTSUPP; 5192 5193 /* If the driver detected FW LLDP was disabled on init, this flag could 5194 * be set, however we do not support _changing_ the flag: 5195 * - on XL710 if NPAR is enabled or FW API version < 1.7 5196 * - on X722 with FW API version < 1.6 5197 * There are situations where older FW versions/NPAR enabled PFs could 5198 * disable LLDP, however we _must_ not allow the user to enable/disable 5199 * LLDP with this flag on unsupported FW versions. 5200 */ 5201 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) { 5202 if (!(pf->hw.flags & I40E_HW_FLAG_FW_LLDP_STOPPABLE)) { 5203 dev_warn(&pf->pdev->dev, 5204 "Device does not support changing FW LLDP\n"); 5205 return -EOPNOTSUPP; 5206 } 5207 } 5208 5209 if (changed_flags & I40E_FLAG_RS_FEC && 5210 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && 5211 pf->hw.device_id != I40E_DEV_ID_25G_B) { 5212 dev_warn(&pf->pdev->dev, 5213 "Device does not support changing FEC configuration\n"); 5214 return -EOPNOTSUPP; 5215 } 5216 5217 if (changed_flags & I40E_FLAG_BASE_R_FEC && 5218 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && 5219 pf->hw.device_id != I40E_DEV_ID_25G_B && 5220 pf->hw.device_id != I40E_DEV_ID_KX_X722) { 5221 dev_warn(&pf->pdev->dev, 5222 "Device does not support changing FEC configuration\n"); 5223 return -EOPNOTSUPP; 5224 } 5225 5226 /* Process any additional changes needed as a result of flag changes. 5227 * The changed_flags value reflects the list of bits that were 5228 * changed in the code above. 5229 */ 5230 5231 /* Flush current ATR settings if ATR was disabled */ 5232 if ((changed_flags & I40E_FLAG_FD_ATR_ENABLED) && 5233 !(new_flags & I40E_FLAG_FD_ATR_ENABLED)) { 5234 set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state); 5235 set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state); 5236 } 5237 5238 if (changed_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT) { 5239 u16 sw_flags = 0, valid_flags = 0; 5240 int ret; 5241 5242 if (!(new_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT)) 5243 sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 5244 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 5245 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags, 5246 0, NULL); 5247 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) { 5248 dev_info(&pf->pdev->dev, 5249 "couldn't set switch config bits, err %s aq_err %s\n", 5250 i40e_stat_str(&pf->hw, ret), 5251 i40e_aq_str(&pf->hw, 5252 pf->hw.aq.asq_last_status)); 5253 /* not a fatal problem, just keep going */ 5254 } 5255 } 5256 5257 if ((changed_flags & I40E_FLAG_RS_FEC) || 5258 (changed_flags & I40E_FLAG_BASE_R_FEC)) { 5259 u8 fec_cfg = 0; 5260 5261 if (new_flags & I40E_FLAG_RS_FEC && 5262 new_flags & I40E_FLAG_BASE_R_FEC) { 5263 fec_cfg = I40E_AQ_SET_FEC_AUTO; 5264 } else if (new_flags & I40E_FLAG_RS_FEC) { 5265 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS | 5266 I40E_AQ_SET_FEC_ABILITY_RS); 5267 } else if (new_flags & I40E_FLAG_BASE_R_FEC) { 5268 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR | 5269 I40E_AQ_SET_FEC_ABILITY_KR); 5270 } 5271 if (i40e_set_fec_cfg(dev, fec_cfg)) 5272 dev_warn(&pf->pdev->dev, "Cannot change FEC config\n"); 5273 } 5274 5275 if ((changed_flags & I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) && 5276 (orig_flags & I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED)) { 5277 dev_err(&pf->pdev->dev, 5278 "Setting link-down-on-close not supported on this port (because total-port-shutdown is enabled)\n"); 5279 return -EOPNOTSUPP; 5280 } 5281 5282 if ((changed_flags & new_flags & 5283 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) && 5284 (new_flags & I40E_FLAG_MFP_ENABLED)) 5285 dev_warn(&pf->pdev->dev, 5286 "Turning on link-down-on-close flag may affect other partitions\n"); 5287 5288 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) { 5289 if (new_flags & I40E_FLAG_DISABLE_FW_LLDP) { 5290 #ifdef CONFIG_I40E_DCB 5291 i40e_dcb_sw_default_config(pf); 5292 #endif /* CONFIG_I40E_DCB */ 5293 i40e_aq_cfg_lldp_mib_change_event(&pf->hw, false, NULL); 5294 i40e_aq_stop_lldp(&pf->hw, true, false, NULL); 5295 } else { 5296 status = i40e_aq_start_lldp(&pf->hw, false, NULL); 5297 if (status) { 5298 adq_err = pf->hw.aq.asq_last_status; 5299 switch (adq_err) { 5300 case I40E_AQ_RC_EEXIST: 5301 dev_warn(&pf->pdev->dev, 5302 "FW LLDP agent is already running\n"); 5303 reset_needed = 0; 5304 break; 5305 case I40E_AQ_RC_EPERM: 5306 dev_warn(&pf->pdev->dev, 5307 "Device configuration forbids SW from starting the LLDP agent.\n"); 5308 return -EINVAL; 5309 case I40E_AQ_RC_EAGAIN: 5310 dev_warn(&pf->pdev->dev, 5311 "Stop FW LLDP agent command is still being processed, please try again in a second.\n"); 5312 return -EBUSY; 5313 default: 5314 dev_warn(&pf->pdev->dev, 5315 "Starting FW LLDP agent failed: error: %s, %s\n", 5316 i40e_stat_str(&pf->hw, 5317 status), 5318 i40e_aq_str(&pf->hw, 5319 adq_err)); 5320 return -EINVAL; 5321 } 5322 } 5323 } 5324 } 5325 5326 /* Now that we've checked to ensure that the new flags are valid, load 5327 * them into place. Since we only modify flags either (a) during 5328 * initialization or (b) while holding the RTNL lock, we don't need 5329 * anything fancy here. 5330 */ 5331 pf->flags = new_flags; 5332 5333 /* Issue reset to cause things to take effect, as additional bits 5334 * are added we will need to create a mask of bits requiring reset 5335 */ 5336 if (reset_needed) 5337 i40e_do_reset(pf, reset_needed, true); 5338 5339 return 0; 5340 } 5341 5342 /** 5343 * i40e_get_module_info - get (Q)SFP+ module type info 5344 * @netdev: network interface device structure 5345 * @modinfo: module EEPROM size and layout information structure 5346 **/ 5347 static int i40e_get_module_info(struct net_device *netdev, 5348 struct ethtool_modinfo *modinfo) 5349 { 5350 struct i40e_netdev_priv *np = netdev_priv(netdev); 5351 struct i40e_vsi *vsi = np->vsi; 5352 struct i40e_pf *pf = vsi->back; 5353 struct i40e_hw *hw = &pf->hw; 5354 u32 sff8472_comp = 0; 5355 u32 sff8472_swap = 0; 5356 u32 sff8636_rev = 0; 5357 i40e_status status; 5358 u32 type = 0; 5359 5360 /* Check if firmware supports reading module EEPROM. */ 5361 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) { 5362 netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n"); 5363 return -EINVAL; 5364 } 5365 5366 status = i40e_update_link_info(hw); 5367 if (status) 5368 return -EIO; 5369 5370 if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) { 5371 netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n"); 5372 return -EINVAL; 5373 } 5374 5375 type = hw->phy.link_info.module_type[0]; 5376 5377 switch (type) { 5378 case I40E_MODULE_TYPE_SFP: 5379 status = i40e_aq_get_phy_register(hw, 5380 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5381 I40E_I2C_EEPROM_DEV_ADDR, true, 5382 I40E_MODULE_SFF_8472_COMP, 5383 &sff8472_comp, NULL); 5384 if (status) 5385 return -EIO; 5386 5387 status = i40e_aq_get_phy_register(hw, 5388 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5389 I40E_I2C_EEPROM_DEV_ADDR, true, 5390 I40E_MODULE_SFF_8472_SWAP, 5391 &sff8472_swap, NULL); 5392 if (status) 5393 return -EIO; 5394 5395 /* Check if the module requires address swap to access 5396 * the other EEPROM memory page. 5397 */ 5398 if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) { 5399 netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n"); 5400 modinfo->type = ETH_MODULE_SFF_8079; 5401 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5402 } else if (sff8472_comp == 0x00) { 5403 /* Module is not SFF-8472 compliant */ 5404 modinfo->type = ETH_MODULE_SFF_8079; 5405 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5406 } else if (!(sff8472_swap & I40E_MODULE_SFF_DDM_IMPLEMENTED)) { 5407 /* Module is SFF-8472 compliant but doesn't implement 5408 * Digital Diagnostic Monitoring (DDM). 5409 */ 5410 modinfo->type = ETH_MODULE_SFF_8079; 5411 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5412 } else { 5413 modinfo->type = ETH_MODULE_SFF_8472; 5414 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; 5415 } 5416 break; 5417 case I40E_MODULE_TYPE_QSFP_PLUS: 5418 /* Read from memory page 0. */ 5419 status = i40e_aq_get_phy_register(hw, 5420 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5421 0, true, 5422 I40E_MODULE_REVISION_ADDR, 5423 &sff8636_rev, NULL); 5424 if (status) 5425 return -EIO; 5426 /* Determine revision compliance byte */ 5427 if (sff8636_rev > 0x02) { 5428 /* Module is SFF-8636 compliant */ 5429 modinfo->type = ETH_MODULE_SFF_8636; 5430 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5431 } else { 5432 modinfo->type = ETH_MODULE_SFF_8436; 5433 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5434 } 5435 break; 5436 case I40E_MODULE_TYPE_QSFP28: 5437 modinfo->type = ETH_MODULE_SFF_8636; 5438 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5439 break; 5440 default: 5441 netdev_err(vsi->netdev, "Module type unrecognized\n"); 5442 return -EINVAL; 5443 } 5444 return 0; 5445 } 5446 5447 /** 5448 * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents 5449 * @netdev: network interface device structure 5450 * @ee: EEPROM dump request structure 5451 * @data: buffer to be filled with EEPROM contents 5452 **/ 5453 static int i40e_get_module_eeprom(struct net_device *netdev, 5454 struct ethtool_eeprom *ee, 5455 u8 *data) 5456 { 5457 struct i40e_netdev_priv *np = netdev_priv(netdev); 5458 struct i40e_vsi *vsi = np->vsi; 5459 struct i40e_pf *pf = vsi->back; 5460 struct i40e_hw *hw = &pf->hw; 5461 bool is_sfp = false; 5462 i40e_status status; 5463 u32 value = 0; 5464 int i; 5465 5466 if (!ee || !ee->len || !data) 5467 return -EINVAL; 5468 5469 if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP) 5470 is_sfp = true; 5471 5472 for (i = 0; i < ee->len; i++) { 5473 u32 offset = i + ee->offset; 5474 u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0; 5475 5476 /* Check if we need to access the other memory page */ 5477 if (is_sfp) { 5478 if (offset >= ETH_MODULE_SFF_8079_LEN) { 5479 offset -= ETH_MODULE_SFF_8079_LEN; 5480 addr = I40E_I2C_EEPROM_DEV_ADDR2; 5481 } 5482 } else { 5483 while (offset >= ETH_MODULE_SFF_8436_LEN) { 5484 /* Compute memory page number and offset. */ 5485 offset -= ETH_MODULE_SFF_8436_LEN / 2; 5486 addr++; 5487 } 5488 } 5489 5490 status = i40e_aq_get_phy_register(hw, 5491 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5492 addr, true, offset, &value, NULL); 5493 if (status) 5494 return -EIO; 5495 data[i] = value; 5496 } 5497 return 0; 5498 } 5499 5500 static int i40e_get_eee(struct net_device *netdev, struct ethtool_eee *edata) 5501 { 5502 struct i40e_netdev_priv *np = netdev_priv(netdev); 5503 struct i40e_aq_get_phy_abilities_resp phy_cfg; 5504 enum i40e_status_code status = 0; 5505 struct i40e_vsi *vsi = np->vsi; 5506 struct i40e_pf *pf = vsi->back; 5507 struct i40e_hw *hw = &pf->hw; 5508 5509 /* Get initial PHY capabilities */ 5510 status = i40e_aq_get_phy_capabilities(hw, false, true, &phy_cfg, NULL); 5511 if (status) 5512 return -EAGAIN; 5513 5514 /* Check whether NIC configuration is compatible with Energy Efficient 5515 * Ethernet (EEE) mode. 5516 */ 5517 if (phy_cfg.eee_capability == 0) 5518 return -EOPNOTSUPP; 5519 5520 edata->supported = SUPPORTED_Autoneg; 5521 edata->lp_advertised = edata->supported; 5522 5523 /* Get current configuration */ 5524 status = i40e_aq_get_phy_capabilities(hw, false, false, &phy_cfg, NULL); 5525 if (status) 5526 return -EAGAIN; 5527 5528 edata->advertised = phy_cfg.eee_capability ? SUPPORTED_Autoneg : 0U; 5529 edata->eee_enabled = !!edata->advertised; 5530 edata->tx_lpi_enabled = pf->stats.tx_lpi_status; 5531 5532 edata->eee_active = pf->stats.tx_lpi_status && pf->stats.rx_lpi_status; 5533 5534 return 0; 5535 } 5536 5537 static int i40e_is_eee_param_supported(struct net_device *netdev, 5538 struct ethtool_eee *edata) 5539 { 5540 struct i40e_netdev_priv *np = netdev_priv(netdev); 5541 struct i40e_vsi *vsi = np->vsi; 5542 struct i40e_pf *pf = vsi->back; 5543 struct i40e_ethtool_not_used { 5544 u32 value; 5545 const char *name; 5546 } param[] = { 5547 {edata->advertised & ~SUPPORTED_Autoneg, "advertise"}, 5548 {edata->tx_lpi_timer, "tx-timer"}, 5549 {edata->tx_lpi_enabled != pf->stats.tx_lpi_status, "tx-lpi"} 5550 }; 5551 int i; 5552 5553 for (i = 0; i < ARRAY_SIZE(param); i++) { 5554 if (param[i].value) { 5555 netdev_info(netdev, 5556 "EEE setting %s not supported\n", 5557 param[i].name); 5558 return -EOPNOTSUPP; 5559 } 5560 } 5561 5562 return 0; 5563 } 5564 5565 static int i40e_set_eee(struct net_device *netdev, struct ethtool_eee *edata) 5566 { 5567 struct i40e_netdev_priv *np = netdev_priv(netdev); 5568 struct i40e_aq_get_phy_abilities_resp abilities; 5569 enum i40e_status_code status = I40E_SUCCESS; 5570 struct i40e_aq_set_phy_config config; 5571 struct i40e_vsi *vsi = np->vsi; 5572 struct i40e_pf *pf = vsi->back; 5573 struct i40e_hw *hw = &pf->hw; 5574 __le16 eee_capability; 5575 5576 /* Deny parameters we don't support */ 5577 if (i40e_is_eee_param_supported(netdev, edata)) 5578 return -EOPNOTSUPP; 5579 5580 /* Get initial PHY capabilities */ 5581 status = i40e_aq_get_phy_capabilities(hw, false, true, &abilities, 5582 NULL); 5583 if (status) 5584 return -EAGAIN; 5585 5586 /* Check whether NIC configuration is compatible with Energy Efficient 5587 * Ethernet (EEE) mode. 5588 */ 5589 if (abilities.eee_capability == 0) 5590 return -EOPNOTSUPP; 5591 5592 /* Cache initial EEE capability */ 5593 eee_capability = abilities.eee_capability; 5594 5595 /* Get current PHY configuration */ 5596 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 5597 NULL); 5598 if (status) 5599 return -EAGAIN; 5600 5601 /* Cache current PHY configuration */ 5602 config.phy_type = abilities.phy_type; 5603 config.phy_type_ext = abilities.phy_type_ext; 5604 config.link_speed = abilities.link_speed; 5605 config.abilities = abilities.abilities | 5606 I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 5607 config.eeer = abilities.eeer_val; 5608 config.low_power_ctrl = abilities.d3_lpan; 5609 config.fec_config = abilities.fec_cfg_curr_mod_ext_info & 5610 I40E_AQ_PHY_FEC_CONFIG_MASK; 5611 5612 /* Set desired EEE state */ 5613 if (edata->eee_enabled) { 5614 config.eee_capability = eee_capability; 5615 config.eeer |= cpu_to_le32(I40E_PRTPM_EEER_TX_LPI_EN_MASK); 5616 } else { 5617 config.eee_capability = 0; 5618 config.eeer &= cpu_to_le32(~I40E_PRTPM_EEER_TX_LPI_EN_MASK); 5619 } 5620 5621 /* Apply modified PHY configuration */ 5622 status = i40e_aq_set_phy_config(hw, &config, NULL); 5623 if (status) 5624 return -EAGAIN; 5625 5626 return 0; 5627 } 5628 5629 static const struct ethtool_ops i40e_ethtool_recovery_mode_ops = { 5630 .get_drvinfo = i40e_get_drvinfo, 5631 .set_eeprom = i40e_set_eeprom, 5632 .get_eeprom_len = i40e_get_eeprom_len, 5633 .get_eeprom = i40e_get_eeprom, 5634 }; 5635 5636 static const struct ethtool_ops i40e_ethtool_ops = { 5637 .supported_coalesce_params = ETHTOOL_COALESCE_USECS | 5638 ETHTOOL_COALESCE_MAX_FRAMES_IRQ | 5639 ETHTOOL_COALESCE_USE_ADAPTIVE | 5640 ETHTOOL_COALESCE_RX_USECS_HIGH | 5641 ETHTOOL_COALESCE_TX_USECS_HIGH, 5642 .get_drvinfo = i40e_get_drvinfo, 5643 .get_regs_len = i40e_get_regs_len, 5644 .get_regs = i40e_get_regs, 5645 .nway_reset = i40e_nway_reset, 5646 .get_link = ethtool_op_get_link, 5647 .get_wol = i40e_get_wol, 5648 .set_wol = i40e_set_wol, 5649 .set_eeprom = i40e_set_eeprom, 5650 .get_eeprom_len = i40e_get_eeprom_len, 5651 .get_eeprom = i40e_get_eeprom, 5652 .get_ringparam = i40e_get_ringparam, 5653 .set_ringparam = i40e_set_ringparam, 5654 .get_pauseparam = i40e_get_pauseparam, 5655 .set_pauseparam = i40e_set_pauseparam, 5656 .get_msglevel = i40e_get_msglevel, 5657 .set_msglevel = i40e_set_msglevel, 5658 .get_rxnfc = i40e_get_rxnfc, 5659 .set_rxnfc = i40e_set_rxnfc, 5660 .self_test = i40e_diag_test, 5661 .get_strings = i40e_get_strings, 5662 .get_eee = i40e_get_eee, 5663 .set_eee = i40e_set_eee, 5664 .set_phys_id = i40e_set_phys_id, 5665 .get_sset_count = i40e_get_sset_count, 5666 .get_ethtool_stats = i40e_get_ethtool_stats, 5667 .get_coalesce = i40e_get_coalesce, 5668 .set_coalesce = i40e_set_coalesce, 5669 .get_rxfh_key_size = i40e_get_rxfh_key_size, 5670 .get_rxfh_indir_size = i40e_get_rxfh_indir_size, 5671 .get_rxfh = i40e_get_rxfh, 5672 .set_rxfh = i40e_set_rxfh, 5673 .get_channels = i40e_get_channels, 5674 .set_channels = i40e_set_channels, 5675 .get_module_info = i40e_get_module_info, 5676 .get_module_eeprom = i40e_get_module_eeprom, 5677 .get_ts_info = i40e_get_ts_info, 5678 .get_priv_flags = i40e_get_priv_flags, 5679 .set_priv_flags = i40e_set_priv_flags, 5680 .get_per_queue_coalesce = i40e_get_per_queue_coalesce, 5681 .set_per_queue_coalesce = i40e_set_per_queue_coalesce, 5682 .get_link_ksettings = i40e_get_link_ksettings, 5683 .set_link_ksettings = i40e_set_link_ksettings, 5684 .get_fecparam = i40e_get_fec_param, 5685 .set_fecparam = i40e_set_fec_param, 5686 .flash_device = i40e_ddp_flash, 5687 }; 5688 5689 void i40e_set_ethtool_ops(struct net_device *netdev) 5690 { 5691 struct i40e_netdev_priv *np = netdev_priv(netdev); 5692 struct i40e_pf *pf = np->vsi->back; 5693 5694 if (!test_bit(__I40E_RECOVERY_MODE, pf->state)) 5695 netdev->ethtool_ops = &i40e_ethtool_ops; 5696 else 5697 netdev->ethtool_ops = &i40e_ethtool_recovery_mode_ops; 5698 } 5699