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 * 40e_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: 845 case I40E_PHY_TYPE_2_5GBASE_T: 846 case I40E_PHY_TYPE_1000BASE_T: 847 case I40E_PHY_TYPE_100BASE_TX: 848 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 849 ethtool_link_ksettings_add_link_mode(ks, supported, 850 10000baseT_Full); 851 ethtool_link_ksettings_add_link_mode(ks, supported, 852 5000baseT_Full); 853 ethtool_link_ksettings_add_link_mode(ks, supported, 854 2500baseT_Full); 855 ethtool_link_ksettings_add_link_mode(ks, supported, 856 1000baseT_Full); 857 ethtool_link_ksettings_add_link_mode(ks, supported, 858 100baseT_Full); 859 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 860 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 861 ethtool_link_ksettings_add_link_mode(ks, advertising, 862 10000baseT_Full); 863 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB) 864 ethtool_link_ksettings_add_link_mode(ks, advertising, 865 5000baseT_Full); 866 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB) 867 ethtool_link_ksettings_add_link_mode(ks, advertising, 868 2500baseT_Full); 869 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 870 ethtool_link_ksettings_add_link_mode(ks, advertising, 871 1000baseT_Full); 872 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 873 ethtool_link_ksettings_add_link_mode(ks, advertising, 874 100baseT_Full); 875 break; 876 case I40E_PHY_TYPE_1000BASE_T_OPTICAL: 877 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 878 ethtool_link_ksettings_add_link_mode(ks, supported, 879 1000baseT_Full); 880 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 881 ethtool_link_ksettings_add_link_mode(ks, advertising, 882 1000baseT_Full); 883 break; 884 case I40E_PHY_TYPE_10GBASE_CR1_CU: 885 case I40E_PHY_TYPE_10GBASE_CR1: 886 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 887 ethtool_link_ksettings_add_link_mode(ks, supported, 888 10000baseT_Full); 889 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 890 ethtool_link_ksettings_add_link_mode(ks, advertising, 891 10000baseT_Full); 892 break; 893 case I40E_PHY_TYPE_XAUI: 894 case I40E_PHY_TYPE_XFI: 895 case I40E_PHY_TYPE_SFI: 896 case I40E_PHY_TYPE_10GBASE_SFPP_CU: 897 case I40E_PHY_TYPE_10GBASE_AOC: 898 ethtool_link_ksettings_add_link_mode(ks, supported, 899 10000baseT_Full); 900 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 901 ethtool_link_ksettings_add_link_mode(ks, advertising, 902 10000baseT_Full); 903 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 904 break; 905 case I40E_PHY_TYPE_SGMII: 906 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 907 ethtool_link_ksettings_add_link_mode(ks, supported, 908 1000baseT_Full); 909 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 910 ethtool_link_ksettings_add_link_mode(ks, advertising, 911 1000baseT_Full); 912 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) { 913 ethtool_link_ksettings_add_link_mode(ks, supported, 914 100baseT_Full); 915 if (hw_link_info->requested_speeds & 916 I40E_LINK_SPEED_100MB) 917 ethtool_link_ksettings_add_link_mode( 918 ks, advertising, 100baseT_Full); 919 } 920 break; 921 case I40E_PHY_TYPE_40GBASE_KR4: 922 case I40E_PHY_TYPE_25GBASE_KR: 923 case I40E_PHY_TYPE_20GBASE_KR2: 924 case I40E_PHY_TYPE_10GBASE_KR: 925 case I40E_PHY_TYPE_10GBASE_KX4: 926 case I40E_PHY_TYPE_1000BASE_KX: 927 ethtool_link_ksettings_add_link_mode(ks, supported, 928 40000baseKR4_Full); 929 ethtool_link_ksettings_add_link_mode(ks, supported, 930 25000baseKR_Full); 931 ethtool_link_ksettings_add_link_mode(ks, supported, 932 20000baseKR2_Full); 933 ethtool_link_ksettings_add_link_mode(ks, supported, 934 10000baseKR_Full); 935 ethtool_link_ksettings_add_link_mode(ks, supported, 936 10000baseKX4_Full); 937 ethtool_link_ksettings_add_link_mode(ks, supported, 938 1000baseKX_Full); 939 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 940 ethtool_link_ksettings_add_link_mode(ks, advertising, 941 40000baseKR4_Full); 942 ethtool_link_ksettings_add_link_mode(ks, advertising, 943 25000baseKR_Full); 944 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 945 ethtool_link_ksettings_add_link_mode(ks, advertising, 946 20000baseKR2_Full); 947 ethtool_link_ksettings_add_link_mode(ks, advertising, 948 10000baseKR_Full); 949 ethtool_link_ksettings_add_link_mode(ks, advertising, 950 10000baseKX4_Full); 951 ethtool_link_ksettings_add_link_mode(ks, advertising, 952 1000baseKX_Full); 953 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 954 break; 955 case I40E_PHY_TYPE_25GBASE_CR: 956 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 957 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 958 ethtool_link_ksettings_add_link_mode(ks, supported, 959 25000baseCR_Full); 960 ethtool_link_ksettings_add_link_mode(ks, advertising, 961 25000baseCR_Full); 962 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 963 964 break; 965 case I40E_PHY_TYPE_25GBASE_AOC: 966 case I40E_PHY_TYPE_25GBASE_ACC: 967 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 968 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 969 ethtool_link_ksettings_add_link_mode(ks, supported, 970 25000baseCR_Full); 971 ethtool_link_ksettings_add_link_mode(ks, advertising, 972 25000baseCR_Full); 973 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 974 975 ethtool_link_ksettings_add_link_mode(ks, supported, 976 10000baseCR_Full); 977 ethtool_link_ksettings_add_link_mode(ks, advertising, 978 10000baseCR_Full); 979 break; 980 default: 981 /* if we got here and link is up something bad is afoot */ 982 netdev_info(netdev, 983 "WARNING: Link is up but PHY type 0x%x is not recognized.\n", 984 hw_link_info->phy_type); 985 } 986 987 /* Now that we've worked out everything that could be supported by the 988 * current PHY type, get what is supported by the NVM and intersect 989 * them to get what is truly supported 990 */ 991 memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings)); 992 i40e_phy_type_to_ethtool(pf, &cap_ksettings); 993 ethtool_intersect_link_masks(ks, &cap_ksettings); 994 995 /* Set speed and duplex */ 996 switch (link_speed) { 997 case I40E_LINK_SPEED_40GB: 998 ks->base.speed = SPEED_40000; 999 break; 1000 case I40E_LINK_SPEED_25GB: 1001 ks->base.speed = SPEED_25000; 1002 break; 1003 case I40E_LINK_SPEED_20GB: 1004 ks->base.speed = SPEED_20000; 1005 break; 1006 case I40E_LINK_SPEED_10GB: 1007 ks->base.speed = SPEED_10000; 1008 break; 1009 case I40E_LINK_SPEED_5GB: 1010 ks->base.speed = SPEED_5000; 1011 break; 1012 case I40E_LINK_SPEED_2_5GB: 1013 ks->base.speed = SPEED_2500; 1014 break; 1015 case I40E_LINK_SPEED_1GB: 1016 ks->base.speed = SPEED_1000; 1017 break; 1018 case I40E_LINK_SPEED_100MB: 1019 ks->base.speed = SPEED_100; 1020 break; 1021 default: 1022 ks->base.speed = SPEED_UNKNOWN; 1023 break; 1024 } 1025 ks->base.duplex = DUPLEX_FULL; 1026 } 1027 1028 /** 1029 * i40e_get_settings_link_down - Get the Link settings for when link is down 1030 * @hw: hw structure 1031 * @ks: ethtool ksettings to fill in 1032 * @pf: pointer to physical function struct 1033 * 1034 * Reports link settings that can be determined when link is down 1035 **/ 1036 static void i40e_get_settings_link_down(struct i40e_hw *hw, 1037 struct ethtool_link_ksettings *ks, 1038 struct i40e_pf *pf) 1039 { 1040 /* link is down and the driver needs to fall back on 1041 * supported phy types to figure out what info to display 1042 */ 1043 i40e_phy_type_to_ethtool(pf, ks); 1044 1045 /* With no link speed and duplex are unknown */ 1046 ks->base.speed = SPEED_UNKNOWN; 1047 ks->base.duplex = DUPLEX_UNKNOWN; 1048 } 1049 1050 /** 1051 * i40e_get_link_ksettings - Get Link Speed and Duplex settings 1052 * @netdev: network interface device structure 1053 * @ks: ethtool ksettings 1054 * 1055 * Reports speed/duplex settings based on media_type 1056 **/ 1057 static int i40e_get_link_ksettings(struct net_device *netdev, 1058 struct ethtool_link_ksettings *ks) 1059 { 1060 struct i40e_netdev_priv *np = netdev_priv(netdev); 1061 struct i40e_pf *pf = np->vsi->back; 1062 struct i40e_hw *hw = &pf->hw; 1063 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1064 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 1065 1066 ethtool_link_ksettings_zero_link_mode(ks, supported); 1067 ethtool_link_ksettings_zero_link_mode(ks, advertising); 1068 1069 if (link_up) 1070 i40e_get_settings_link_up(hw, ks, netdev, pf); 1071 else 1072 i40e_get_settings_link_down(hw, ks, pf); 1073 1074 /* Now set the settings that don't rely on link being up/down */ 1075 /* Set autoneg settings */ 1076 ks->base.autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 1077 AUTONEG_ENABLE : AUTONEG_DISABLE); 1078 1079 /* Set media type settings */ 1080 switch (hw->phy.media_type) { 1081 case I40E_MEDIA_TYPE_BACKPLANE: 1082 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 1083 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane); 1084 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 1085 ethtool_link_ksettings_add_link_mode(ks, advertising, 1086 Backplane); 1087 ks->base.port = PORT_NONE; 1088 break; 1089 case I40E_MEDIA_TYPE_BASET: 1090 ethtool_link_ksettings_add_link_mode(ks, supported, TP); 1091 ethtool_link_ksettings_add_link_mode(ks, advertising, TP); 1092 ks->base.port = PORT_TP; 1093 break; 1094 case I40E_MEDIA_TYPE_DA: 1095 case I40E_MEDIA_TYPE_CX4: 1096 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1097 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 1098 ks->base.port = PORT_DA; 1099 break; 1100 case I40E_MEDIA_TYPE_FIBER: 1101 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1102 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 1103 ks->base.port = PORT_FIBRE; 1104 break; 1105 case I40E_MEDIA_TYPE_UNKNOWN: 1106 default: 1107 ks->base.port = PORT_OTHER; 1108 break; 1109 } 1110 1111 /* Set flow control settings */ 1112 ethtool_link_ksettings_add_link_mode(ks, supported, Pause); 1113 ethtool_link_ksettings_add_link_mode(ks, supported, Asym_Pause); 1114 1115 switch (hw->fc.requested_mode) { 1116 case I40E_FC_FULL: 1117 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1118 break; 1119 case I40E_FC_TX_PAUSE: 1120 ethtool_link_ksettings_add_link_mode(ks, advertising, 1121 Asym_Pause); 1122 break; 1123 case I40E_FC_RX_PAUSE: 1124 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1125 ethtool_link_ksettings_add_link_mode(ks, advertising, 1126 Asym_Pause); 1127 break; 1128 default: 1129 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause); 1130 ethtool_link_ksettings_del_link_mode(ks, advertising, 1131 Asym_Pause); 1132 break; 1133 } 1134 1135 return 0; 1136 } 1137 1138 /** 1139 * i40e_set_link_ksettings - Set Speed and Duplex 1140 * @netdev: network interface device structure 1141 * @ks: ethtool ksettings 1142 * 1143 * Set speed/duplex per media_types advertised/forced 1144 **/ 1145 static int i40e_set_link_ksettings(struct net_device *netdev, 1146 const struct ethtool_link_ksettings *ks) 1147 { 1148 struct i40e_netdev_priv *np = netdev_priv(netdev); 1149 struct i40e_aq_get_phy_abilities_resp abilities; 1150 struct ethtool_link_ksettings safe_ks; 1151 struct ethtool_link_ksettings copy_ks; 1152 struct i40e_aq_set_phy_config config; 1153 struct i40e_pf *pf = np->vsi->back; 1154 struct i40e_vsi *vsi = np->vsi; 1155 struct i40e_hw *hw = &pf->hw; 1156 bool autoneg_changed = false; 1157 i40e_status status = 0; 1158 int timeout = 50; 1159 int err = 0; 1160 u8 autoneg; 1161 1162 /* Changing port settings is not supported if this isn't the 1163 * port's controlling PF 1164 */ 1165 if (hw->partition_id != 1) { 1166 i40e_partition_setting_complaint(pf); 1167 return -EOPNOTSUPP; 1168 } 1169 if (vsi != pf->vsi[pf->lan_vsi]) 1170 return -EOPNOTSUPP; 1171 if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET && 1172 hw->phy.media_type != I40E_MEDIA_TYPE_FIBER && 1173 hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE && 1174 hw->phy.media_type != I40E_MEDIA_TYPE_DA && 1175 hw->phy.link_info.link_info & I40E_AQ_LINK_UP) 1176 return -EOPNOTSUPP; 1177 if (hw->device_id == I40E_DEV_ID_KX_B || 1178 hw->device_id == I40E_DEV_ID_KX_C || 1179 hw->device_id == I40E_DEV_ID_20G_KR2 || 1180 hw->device_id == I40E_DEV_ID_20G_KR2_A || 1181 hw->device_id == I40E_DEV_ID_25G_B || 1182 hw->device_id == I40E_DEV_ID_KX_X722) { 1183 netdev_info(netdev, "Changing settings is not supported on backplane.\n"); 1184 return -EOPNOTSUPP; 1185 } 1186 1187 /* copy the ksettings to copy_ks to avoid modifying the origin */ 1188 memcpy(©_ks, ks, sizeof(struct ethtool_link_ksettings)); 1189 1190 /* save autoneg out of ksettings */ 1191 autoneg = copy_ks.base.autoneg; 1192 1193 /* get our own copy of the bits to check against */ 1194 memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings)); 1195 safe_ks.base.cmd = copy_ks.base.cmd; 1196 safe_ks.base.link_mode_masks_nwords = 1197 copy_ks.base.link_mode_masks_nwords; 1198 i40e_get_link_ksettings(netdev, &safe_ks); 1199 1200 /* Get link modes supported by hardware and check against modes 1201 * requested by the user. Return an error if unsupported mode was set. 1202 */ 1203 if (!bitmap_subset(copy_ks.link_modes.advertising, 1204 safe_ks.link_modes.supported, 1205 __ETHTOOL_LINK_MODE_MASK_NBITS)) 1206 return -EINVAL; 1207 1208 /* set autoneg back to what it currently is */ 1209 copy_ks.base.autoneg = safe_ks.base.autoneg; 1210 1211 /* If copy_ks.base and safe_ks.base are not the same now, then they are 1212 * trying to set something that we do not support. 1213 */ 1214 if (memcmp(©_ks.base, &safe_ks.base, 1215 sizeof(struct ethtool_link_settings))) 1216 return -EOPNOTSUPP; 1217 1218 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { 1219 timeout--; 1220 if (!timeout) 1221 return -EBUSY; 1222 usleep_range(1000, 2000); 1223 } 1224 1225 /* Get the current phy config */ 1226 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1227 NULL); 1228 if (status) { 1229 err = -EAGAIN; 1230 goto done; 1231 } 1232 1233 /* Copy abilities to config in case autoneg is not 1234 * set below 1235 */ 1236 memset(&config, 0, sizeof(struct i40e_aq_set_phy_config)); 1237 config.abilities = abilities.abilities; 1238 1239 /* Check autoneg */ 1240 if (autoneg == AUTONEG_ENABLE) { 1241 /* If autoneg was not already enabled */ 1242 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) { 1243 /* If autoneg is not supported, return error */ 1244 if (!ethtool_link_ksettings_test_link_mode(&safe_ks, 1245 supported, 1246 Autoneg)) { 1247 netdev_info(netdev, "Autoneg not supported on this phy\n"); 1248 err = -EINVAL; 1249 goto done; 1250 } 1251 /* Autoneg is allowed to change */ 1252 config.abilities = abilities.abilities | 1253 I40E_AQ_PHY_ENABLE_AN; 1254 autoneg_changed = true; 1255 } 1256 } else { 1257 /* If autoneg is currently enabled */ 1258 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) { 1259 /* If autoneg is supported 10GBASE_T is the only PHY 1260 * that can disable it, so otherwise return error 1261 */ 1262 if (ethtool_link_ksettings_test_link_mode(&safe_ks, 1263 supported, 1264 Autoneg) && 1265 hw->phy.link_info.phy_type != 1266 I40E_PHY_TYPE_10GBASE_T) { 1267 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n"); 1268 err = -EINVAL; 1269 goto done; 1270 } 1271 /* Autoneg is allowed to change */ 1272 config.abilities = abilities.abilities & 1273 ~I40E_AQ_PHY_ENABLE_AN; 1274 autoneg_changed = true; 1275 } 1276 } 1277 1278 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1279 100baseT_Full)) 1280 config.link_speed |= I40E_LINK_SPEED_100MB; 1281 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1282 1000baseT_Full) || 1283 ethtool_link_ksettings_test_link_mode(ks, advertising, 1284 1000baseX_Full) || 1285 ethtool_link_ksettings_test_link_mode(ks, advertising, 1286 1000baseKX_Full)) 1287 config.link_speed |= I40E_LINK_SPEED_1GB; 1288 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1289 10000baseT_Full) || 1290 ethtool_link_ksettings_test_link_mode(ks, advertising, 1291 10000baseKX4_Full) || 1292 ethtool_link_ksettings_test_link_mode(ks, advertising, 1293 10000baseKR_Full) || 1294 ethtool_link_ksettings_test_link_mode(ks, advertising, 1295 10000baseCR_Full) || 1296 ethtool_link_ksettings_test_link_mode(ks, advertising, 1297 10000baseSR_Full) || 1298 ethtool_link_ksettings_test_link_mode(ks, advertising, 1299 10000baseLR_Full)) 1300 config.link_speed |= I40E_LINK_SPEED_10GB; 1301 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1302 2500baseT_Full)) 1303 config.link_speed |= I40E_LINK_SPEED_2_5GB; 1304 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1305 5000baseT_Full)) 1306 config.link_speed |= I40E_LINK_SPEED_5GB; 1307 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1308 20000baseKR2_Full)) 1309 config.link_speed |= I40E_LINK_SPEED_20GB; 1310 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1311 25000baseCR_Full) || 1312 ethtool_link_ksettings_test_link_mode(ks, advertising, 1313 25000baseKR_Full) || 1314 ethtool_link_ksettings_test_link_mode(ks, advertising, 1315 25000baseSR_Full)) 1316 config.link_speed |= I40E_LINK_SPEED_25GB; 1317 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1318 40000baseKR4_Full) || 1319 ethtool_link_ksettings_test_link_mode(ks, advertising, 1320 40000baseCR4_Full) || 1321 ethtool_link_ksettings_test_link_mode(ks, advertising, 1322 40000baseSR4_Full) || 1323 ethtool_link_ksettings_test_link_mode(ks, advertising, 1324 40000baseLR4_Full)) 1325 config.link_speed |= I40E_LINK_SPEED_40GB; 1326 1327 /* If speed didn't get set, set it to what it currently is. 1328 * This is needed because if advertise is 0 (as it is when autoneg 1329 * is disabled) then speed won't get set. 1330 */ 1331 if (!config.link_speed) 1332 config.link_speed = abilities.link_speed; 1333 if (autoneg_changed || abilities.link_speed != config.link_speed) { 1334 /* copy over the rest of the abilities */ 1335 config.phy_type = abilities.phy_type; 1336 config.phy_type_ext = abilities.phy_type_ext; 1337 config.eee_capability = abilities.eee_capability; 1338 config.eeer = abilities.eeer_val; 1339 config.low_power_ctrl = abilities.d3_lpan; 1340 config.fec_config = abilities.fec_cfg_curr_mod_ext_info & 1341 I40E_AQ_PHY_FEC_CONFIG_MASK; 1342 1343 /* save the requested speeds */ 1344 hw->phy.link_info.requested_speeds = config.link_speed; 1345 /* set link and auto negotiation so changes take effect */ 1346 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 1347 /* If link is up put link down */ 1348 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) { 1349 /* Tell the OS link is going down, the link will go 1350 * back up when fw says it is ready asynchronously 1351 */ 1352 i40e_print_link_message(vsi, false); 1353 netif_carrier_off(netdev); 1354 netif_tx_stop_all_queues(netdev); 1355 } 1356 1357 /* make the aq call */ 1358 status = i40e_aq_set_phy_config(hw, &config, NULL); 1359 if (status) { 1360 netdev_info(netdev, 1361 "Set phy config failed, err %s aq_err %s\n", 1362 i40e_stat_str(hw, status), 1363 i40e_aq_str(hw, hw->aq.asq_last_status)); 1364 err = -EAGAIN; 1365 goto done; 1366 } 1367 1368 status = i40e_update_link_info(hw); 1369 if (status) 1370 netdev_dbg(netdev, 1371 "Updating link info failed with err %s aq_err %s\n", 1372 i40e_stat_str(hw, status), 1373 i40e_aq_str(hw, hw->aq.asq_last_status)); 1374 1375 } else { 1376 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n"); 1377 } 1378 1379 done: 1380 clear_bit(__I40E_CONFIG_BUSY, pf->state); 1381 1382 return err; 1383 } 1384 1385 static int i40e_set_fec_cfg(struct net_device *netdev, u8 fec_cfg) 1386 { 1387 struct i40e_netdev_priv *np = netdev_priv(netdev); 1388 struct i40e_aq_get_phy_abilities_resp abilities; 1389 struct i40e_pf *pf = np->vsi->back; 1390 struct i40e_hw *hw = &pf->hw; 1391 i40e_status status = 0; 1392 u32 flags = 0; 1393 int err = 0; 1394 1395 flags = READ_ONCE(pf->flags); 1396 i40e_set_fec_in_flags(fec_cfg, &flags); 1397 1398 /* Get the current phy config */ 1399 memset(&abilities, 0, sizeof(abilities)); 1400 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1401 NULL); 1402 if (status) { 1403 err = -EAGAIN; 1404 goto done; 1405 } 1406 1407 if (abilities.fec_cfg_curr_mod_ext_info != fec_cfg) { 1408 struct i40e_aq_set_phy_config config; 1409 1410 memset(&config, 0, sizeof(config)); 1411 config.phy_type = abilities.phy_type; 1412 config.abilities = abilities.abilities; 1413 config.phy_type_ext = abilities.phy_type_ext; 1414 config.link_speed = abilities.link_speed; 1415 config.eee_capability = abilities.eee_capability; 1416 config.eeer = abilities.eeer_val; 1417 config.low_power_ctrl = abilities.d3_lpan; 1418 config.fec_config = fec_cfg & I40E_AQ_PHY_FEC_CONFIG_MASK; 1419 status = i40e_aq_set_phy_config(hw, &config, NULL); 1420 if (status) { 1421 netdev_info(netdev, 1422 "Set phy config failed, err %s aq_err %s\n", 1423 i40e_stat_str(hw, status), 1424 i40e_aq_str(hw, hw->aq.asq_last_status)); 1425 err = -EAGAIN; 1426 goto done; 1427 } 1428 pf->flags = flags; 1429 status = i40e_update_link_info(hw); 1430 if (status) 1431 /* debug level message only due to relation to the link 1432 * itself rather than to the FEC settings 1433 * (e.g. no physical connection etc.) 1434 */ 1435 netdev_dbg(netdev, 1436 "Updating link info failed with err %s aq_err %s\n", 1437 i40e_stat_str(hw, status), 1438 i40e_aq_str(hw, hw->aq.asq_last_status)); 1439 } 1440 1441 done: 1442 return err; 1443 } 1444 1445 static int i40e_get_fec_param(struct net_device *netdev, 1446 struct ethtool_fecparam *fecparam) 1447 { 1448 struct i40e_netdev_priv *np = netdev_priv(netdev); 1449 struct i40e_aq_get_phy_abilities_resp abilities; 1450 struct i40e_pf *pf = np->vsi->back; 1451 struct i40e_hw *hw = &pf->hw; 1452 i40e_status status = 0; 1453 int err = 0; 1454 u8 fec_cfg; 1455 1456 /* Get the current phy config */ 1457 memset(&abilities, 0, sizeof(abilities)); 1458 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1459 NULL); 1460 if (status) { 1461 err = -EAGAIN; 1462 goto done; 1463 } 1464 1465 fecparam->fec = 0; 1466 fec_cfg = abilities.fec_cfg_curr_mod_ext_info; 1467 if (fec_cfg & I40E_AQ_SET_FEC_AUTO) 1468 fecparam->fec |= ETHTOOL_FEC_AUTO; 1469 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_RS | 1470 I40E_AQ_SET_FEC_ABILITY_RS)) 1471 fecparam->fec |= ETHTOOL_FEC_RS; 1472 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_KR | 1473 I40E_AQ_SET_FEC_ABILITY_KR)) 1474 fecparam->fec |= ETHTOOL_FEC_BASER; 1475 if (fec_cfg == 0) 1476 fecparam->fec |= ETHTOOL_FEC_OFF; 1477 1478 if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_KR_ENA) 1479 fecparam->active_fec = ETHTOOL_FEC_BASER; 1480 else if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_RS_ENA) 1481 fecparam->active_fec = ETHTOOL_FEC_RS; 1482 else 1483 fecparam->active_fec = ETHTOOL_FEC_OFF; 1484 done: 1485 return err; 1486 } 1487 1488 static int i40e_set_fec_param(struct net_device *netdev, 1489 struct ethtool_fecparam *fecparam) 1490 { 1491 struct i40e_netdev_priv *np = netdev_priv(netdev); 1492 struct i40e_pf *pf = np->vsi->back; 1493 struct i40e_hw *hw = &pf->hw; 1494 u8 fec_cfg = 0; 1495 1496 if (hw->device_id != I40E_DEV_ID_25G_SFP28 && 1497 hw->device_id != I40E_DEV_ID_25G_B && 1498 hw->device_id != I40E_DEV_ID_KX_X722) 1499 return -EPERM; 1500 1501 if (hw->mac.type == I40E_MAC_X722 && 1502 !(hw->flags & I40E_HW_FLAG_X722_FEC_REQUEST_CAPABLE)) { 1503 netdev_err(netdev, "Setting FEC encoding not supported by firmware. Please update the NVM image.\n"); 1504 return -EOPNOTSUPP; 1505 } 1506 1507 switch (fecparam->fec) { 1508 case ETHTOOL_FEC_AUTO: 1509 fec_cfg = I40E_AQ_SET_FEC_AUTO; 1510 break; 1511 case ETHTOOL_FEC_RS: 1512 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS | 1513 I40E_AQ_SET_FEC_ABILITY_RS); 1514 break; 1515 case ETHTOOL_FEC_BASER: 1516 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR | 1517 I40E_AQ_SET_FEC_ABILITY_KR); 1518 break; 1519 case ETHTOOL_FEC_OFF: 1520 case ETHTOOL_FEC_NONE: 1521 fec_cfg = 0; 1522 break; 1523 default: 1524 dev_warn(&pf->pdev->dev, "Unsupported FEC mode: %d", 1525 fecparam->fec); 1526 return -EINVAL; 1527 } 1528 1529 return i40e_set_fec_cfg(netdev, fec_cfg); 1530 } 1531 1532 static int i40e_nway_reset(struct net_device *netdev) 1533 { 1534 /* restart autonegotiation */ 1535 struct i40e_netdev_priv *np = netdev_priv(netdev); 1536 struct i40e_pf *pf = np->vsi->back; 1537 struct i40e_hw *hw = &pf->hw; 1538 bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP; 1539 i40e_status ret = 0; 1540 1541 ret = i40e_aq_set_link_restart_an(hw, link_up, NULL); 1542 if (ret) { 1543 netdev_info(netdev, "link restart failed, err %s aq_err %s\n", 1544 i40e_stat_str(hw, ret), 1545 i40e_aq_str(hw, hw->aq.asq_last_status)); 1546 return -EIO; 1547 } 1548 1549 return 0; 1550 } 1551 1552 /** 1553 * i40e_get_pauseparam - Get Flow Control status 1554 * @netdev: netdevice structure 1555 * @pause: buffer to return pause parameters 1556 * 1557 * Return tx/rx-pause status 1558 **/ 1559 static void i40e_get_pauseparam(struct net_device *netdev, 1560 struct ethtool_pauseparam *pause) 1561 { 1562 struct i40e_netdev_priv *np = netdev_priv(netdev); 1563 struct i40e_pf *pf = np->vsi->back; 1564 struct i40e_hw *hw = &pf->hw; 1565 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1566 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 1567 1568 pause->autoneg = 1569 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 1570 AUTONEG_ENABLE : AUTONEG_DISABLE); 1571 1572 /* PFC enabled so report LFC as off */ 1573 if (dcbx_cfg->pfc.pfcenable) { 1574 pause->rx_pause = 0; 1575 pause->tx_pause = 0; 1576 return; 1577 } 1578 1579 if (hw->fc.current_mode == I40E_FC_RX_PAUSE) { 1580 pause->rx_pause = 1; 1581 } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) { 1582 pause->tx_pause = 1; 1583 } else if (hw->fc.current_mode == I40E_FC_FULL) { 1584 pause->rx_pause = 1; 1585 pause->tx_pause = 1; 1586 } 1587 } 1588 1589 /** 1590 * i40e_set_pauseparam - Set Flow Control parameter 1591 * @netdev: network interface device structure 1592 * @pause: return tx/rx flow control status 1593 **/ 1594 static int i40e_set_pauseparam(struct net_device *netdev, 1595 struct ethtool_pauseparam *pause) 1596 { 1597 struct i40e_netdev_priv *np = netdev_priv(netdev); 1598 struct i40e_pf *pf = np->vsi->back; 1599 struct i40e_vsi *vsi = np->vsi; 1600 struct i40e_hw *hw = &pf->hw; 1601 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1602 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 1603 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 1604 i40e_status status; 1605 u8 aq_failures; 1606 int err = 0; 1607 u32 is_an; 1608 1609 /* Changing the port's flow control is not supported if this isn't the 1610 * port's controlling PF 1611 */ 1612 if (hw->partition_id != 1) { 1613 i40e_partition_setting_complaint(pf); 1614 return -EOPNOTSUPP; 1615 } 1616 1617 if (vsi != pf->vsi[pf->lan_vsi]) 1618 return -EOPNOTSUPP; 1619 1620 is_an = hw_link_info->an_info & I40E_AQ_AN_COMPLETED; 1621 if (pause->autoneg != is_an) { 1622 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n"); 1623 return -EOPNOTSUPP; 1624 } 1625 1626 /* If we have link and don't have autoneg */ 1627 if (!test_bit(__I40E_DOWN, pf->state) && !is_an) { 1628 /* Send message that it might not necessarily work*/ 1629 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n"); 1630 } 1631 1632 if (dcbx_cfg->pfc.pfcenable) { 1633 netdev_info(netdev, 1634 "Priority flow control enabled. Cannot set link flow control.\n"); 1635 return -EOPNOTSUPP; 1636 } 1637 1638 if (pause->rx_pause && pause->tx_pause) 1639 hw->fc.requested_mode = I40E_FC_FULL; 1640 else if (pause->rx_pause && !pause->tx_pause) 1641 hw->fc.requested_mode = I40E_FC_RX_PAUSE; 1642 else if (!pause->rx_pause && pause->tx_pause) 1643 hw->fc.requested_mode = I40E_FC_TX_PAUSE; 1644 else if (!pause->rx_pause && !pause->tx_pause) 1645 hw->fc.requested_mode = I40E_FC_NONE; 1646 else 1647 return -EINVAL; 1648 1649 /* Tell the OS link is going down, the link will go back up when fw 1650 * says it is ready asynchronously 1651 */ 1652 i40e_print_link_message(vsi, false); 1653 netif_carrier_off(netdev); 1654 netif_tx_stop_all_queues(netdev); 1655 1656 /* Set the fc mode and only restart an if link is up*/ 1657 status = i40e_set_fc(hw, &aq_failures, link_up); 1658 1659 if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) { 1660 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n", 1661 i40e_stat_str(hw, status), 1662 i40e_aq_str(hw, hw->aq.asq_last_status)); 1663 err = -EAGAIN; 1664 } 1665 if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) { 1666 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n", 1667 i40e_stat_str(hw, status), 1668 i40e_aq_str(hw, hw->aq.asq_last_status)); 1669 err = -EAGAIN; 1670 } 1671 if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) { 1672 netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n", 1673 i40e_stat_str(hw, status), 1674 i40e_aq_str(hw, hw->aq.asq_last_status)); 1675 err = -EAGAIN; 1676 } 1677 1678 if (!test_bit(__I40E_DOWN, pf->state) && is_an) { 1679 /* Give it a little more time to try to come back */ 1680 msleep(75); 1681 if (!test_bit(__I40E_DOWN, pf->state)) 1682 return i40e_nway_reset(netdev); 1683 } 1684 1685 return err; 1686 } 1687 1688 static u32 i40e_get_msglevel(struct net_device *netdev) 1689 { 1690 struct i40e_netdev_priv *np = netdev_priv(netdev); 1691 struct i40e_pf *pf = np->vsi->back; 1692 u32 debug_mask = pf->hw.debug_mask; 1693 1694 if (debug_mask) 1695 netdev_info(netdev, "i40e debug_mask: 0x%08X\n", debug_mask); 1696 1697 return pf->msg_enable; 1698 } 1699 1700 static void i40e_set_msglevel(struct net_device *netdev, u32 data) 1701 { 1702 struct i40e_netdev_priv *np = netdev_priv(netdev); 1703 struct i40e_pf *pf = np->vsi->back; 1704 1705 if (I40E_DEBUG_USER & data) 1706 pf->hw.debug_mask = data; 1707 else 1708 pf->msg_enable = data; 1709 } 1710 1711 static int i40e_get_regs_len(struct net_device *netdev) 1712 { 1713 int reg_count = 0; 1714 int i; 1715 1716 for (i = 0; i40e_reg_list[i].offset != 0; i++) 1717 reg_count += i40e_reg_list[i].elements; 1718 1719 return reg_count * sizeof(u32); 1720 } 1721 1722 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs, 1723 void *p) 1724 { 1725 struct i40e_netdev_priv *np = netdev_priv(netdev); 1726 struct i40e_pf *pf = np->vsi->back; 1727 struct i40e_hw *hw = &pf->hw; 1728 u32 *reg_buf = p; 1729 unsigned int i, j, ri; 1730 u32 reg; 1731 1732 /* Tell ethtool which driver-version-specific regs output we have. 1733 * 1734 * At some point, if we have ethtool doing special formatting of 1735 * this data, it will rely on this version number to know how to 1736 * interpret things. Hence, this needs to be updated if/when the 1737 * diags register table is changed. 1738 */ 1739 regs->version = 1; 1740 1741 /* loop through the diags reg table for what to print */ 1742 ri = 0; 1743 for (i = 0; i40e_reg_list[i].offset != 0; i++) { 1744 for (j = 0; j < i40e_reg_list[i].elements; j++) { 1745 reg = i40e_reg_list[i].offset 1746 + (j * i40e_reg_list[i].stride); 1747 reg_buf[ri++] = rd32(hw, reg); 1748 } 1749 } 1750 1751 } 1752 1753 static int i40e_get_eeprom(struct net_device *netdev, 1754 struct ethtool_eeprom *eeprom, u8 *bytes) 1755 { 1756 struct i40e_netdev_priv *np = netdev_priv(netdev); 1757 struct i40e_hw *hw = &np->vsi->back->hw; 1758 struct i40e_pf *pf = np->vsi->back; 1759 int ret_val = 0, len, offset; 1760 u8 *eeprom_buff; 1761 u16 i, sectors; 1762 bool last; 1763 u32 magic; 1764 1765 #define I40E_NVM_SECTOR_SIZE 4096 1766 if (eeprom->len == 0) 1767 return -EINVAL; 1768 1769 /* check for NVMUpdate access method */ 1770 magic = hw->vendor_id | (hw->device_id << 16); 1771 if (eeprom->magic && eeprom->magic != magic) { 1772 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1773 int errno = 0; 1774 1775 /* make sure it is the right magic for NVMUpdate */ 1776 if ((eeprom->magic >> 16) != hw->device_id) 1777 errno = -EINVAL; 1778 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 1779 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 1780 errno = -EBUSY; 1781 else 1782 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1783 1784 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1785 dev_info(&pf->pdev->dev, 1786 "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1787 ret_val, hw->aq.asq_last_status, errno, 1788 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1789 cmd->offset, cmd->data_size); 1790 1791 return errno; 1792 } 1793 1794 /* normal ethtool get_eeprom support */ 1795 eeprom->magic = hw->vendor_id | (hw->device_id << 16); 1796 1797 eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL); 1798 if (!eeprom_buff) 1799 return -ENOMEM; 1800 1801 ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ); 1802 if (ret_val) { 1803 dev_info(&pf->pdev->dev, 1804 "Failed Acquiring NVM resource for read err=%d status=0x%x\n", 1805 ret_val, hw->aq.asq_last_status); 1806 goto free_buff; 1807 } 1808 1809 sectors = eeprom->len / I40E_NVM_SECTOR_SIZE; 1810 sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0; 1811 len = I40E_NVM_SECTOR_SIZE; 1812 last = false; 1813 for (i = 0; i < sectors; i++) { 1814 if (i == (sectors - 1)) { 1815 len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i); 1816 last = true; 1817 } 1818 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i), 1819 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len, 1820 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i), 1821 last, NULL); 1822 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) { 1823 dev_info(&pf->pdev->dev, 1824 "read NVM failed, invalid offset 0x%x\n", 1825 offset); 1826 break; 1827 } else if (ret_val && 1828 hw->aq.asq_last_status == I40E_AQ_RC_EACCES) { 1829 dev_info(&pf->pdev->dev, 1830 "read NVM failed, access, offset 0x%x\n", 1831 offset); 1832 break; 1833 } else if (ret_val) { 1834 dev_info(&pf->pdev->dev, 1835 "read NVM failed offset %d err=%d status=0x%x\n", 1836 offset, ret_val, hw->aq.asq_last_status); 1837 break; 1838 } 1839 } 1840 1841 i40e_release_nvm(hw); 1842 memcpy(bytes, (u8 *)eeprom_buff, eeprom->len); 1843 free_buff: 1844 kfree(eeprom_buff); 1845 return ret_val; 1846 } 1847 1848 static int i40e_get_eeprom_len(struct net_device *netdev) 1849 { 1850 struct i40e_netdev_priv *np = netdev_priv(netdev); 1851 struct i40e_hw *hw = &np->vsi->back->hw; 1852 u32 val; 1853 1854 #define X722_EEPROM_SCOPE_LIMIT 0x5B9FFF 1855 if (hw->mac.type == I40E_MAC_X722) { 1856 val = X722_EEPROM_SCOPE_LIMIT + 1; 1857 return val; 1858 } 1859 val = (rd32(hw, I40E_GLPCI_LBARCTRL) 1860 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK) 1861 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT; 1862 /* register returns value in power of 2, 64Kbyte chunks. */ 1863 val = (64 * 1024) * BIT(val); 1864 return val; 1865 } 1866 1867 static int i40e_set_eeprom(struct net_device *netdev, 1868 struct ethtool_eeprom *eeprom, u8 *bytes) 1869 { 1870 struct i40e_netdev_priv *np = netdev_priv(netdev); 1871 struct i40e_hw *hw = &np->vsi->back->hw; 1872 struct i40e_pf *pf = np->vsi->back; 1873 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1874 int ret_val = 0; 1875 int errno = 0; 1876 u32 magic; 1877 1878 /* normal ethtool set_eeprom is not supported */ 1879 magic = hw->vendor_id | (hw->device_id << 16); 1880 if (eeprom->magic == magic) 1881 errno = -EOPNOTSUPP; 1882 /* check for NVMUpdate access method */ 1883 else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id) 1884 errno = -EINVAL; 1885 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 1886 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 1887 errno = -EBUSY; 1888 else 1889 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1890 1891 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1892 dev_info(&pf->pdev->dev, 1893 "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1894 ret_val, hw->aq.asq_last_status, errno, 1895 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1896 cmd->offset, cmd->data_size); 1897 1898 return errno; 1899 } 1900 1901 static void i40e_get_drvinfo(struct net_device *netdev, 1902 struct ethtool_drvinfo *drvinfo) 1903 { 1904 struct i40e_netdev_priv *np = netdev_priv(netdev); 1905 struct i40e_vsi *vsi = np->vsi; 1906 struct i40e_pf *pf = vsi->back; 1907 1908 strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver)); 1909 strlcpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw), 1910 sizeof(drvinfo->fw_version)); 1911 strlcpy(drvinfo->bus_info, pci_name(pf->pdev), 1912 sizeof(drvinfo->bus_info)); 1913 drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN; 1914 if (pf->hw.pf_id == 0) 1915 drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN; 1916 } 1917 1918 static void i40e_get_ringparam(struct net_device *netdev, 1919 struct ethtool_ringparam *ring) 1920 { 1921 struct i40e_netdev_priv *np = netdev_priv(netdev); 1922 struct i40e_pf *pf = np->vsi->back; 1923 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; 1924 1925 ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS; 1926 ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS; 1927 ring->rx_mini_max_pending = 0; 1928 ring->rx_jumbo_max_pending = 0; 1929 ring->rx_pending = vsi->rx_rings[0]->count; 1930 ring->tx_pending = vsi->tx_rings[0]->count; 1931 ring->rx_mini_pending = 0; 1932 ring->rx_jumbo_pending = 0; 1933 } 1934 1935 static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index) 1936 { 1937 if (i40e_enabled_xdp_vsi(vsi)) { 1938 return index < vsi->num_queue_pairs || 1939 (index >= vsi->alloc_queue_pairs && 1940 index < vsi->alloc_queue_pairs + vsi->num_queue_pairs); 1941 } 1942 1943 return index < vsi->num_queue_pairs; 1944 } 1945 1946 static int i40e_set_ringparam(struct net_device *netdev, 1947 struct ethtool_ringparam *ring) 1948 { 1949 struct i40e_ring *tx_rings = NULL, *rx_rings = NULL; 1950 struct i40e_netdev_priv *np = netdev_priv(netdev); 1951 struct i40e_hw *hw = &np->vsi->back->hw; 1952 struct i40e_vsi *vsi = np->vsi; 1953 struct i40e_pf *pf = vsi->back; 1954 u32 new_rx_count, new_tx_count; 1955 u16 tx_alloc_queue_pairs; 1956 int timeout = 50; 1957 int i, err = 0; 1958 1959 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) 1960 return -EINVAL; 1961 1962 if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS || 1963 ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS || 1964 ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS || 1965 ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) { 1966 netdev_info(netdev, 1967 "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n", 1968 ring->tx_pending, ring->rx_pending, 1969 I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS); 1970 return -EINVAL; 1971 } 1972 1973 new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 1974 new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 1975 1976 /* if nothing to do return success */ 1977 if ((new_tx_count == vsi->tx_rings[0]->count) && 1978 (new_rx_count == vsi->rx_rings[0]->count)) 1979 return 0; 1980 1981 /* If there is a AF_XDP page pool attached to any of Rx rings, 1982 * disallow changing the number of descriptors -- regardless 1983 * if the netdev is running or not. 1984 */ 1985 if (i40e_xsk_any_rx_ring_enabled(vsi)) 1986 return -EBUSY; 1987 1988 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { 1989 timeout--; 1990 if (!timeout) 1991 return -EBUSY; 1992 usleep_range(1000, 2000); 1993 } 1994 1995 if (!netif_running(vsi->netdev)) { 1996 /* simple case - set for the next time the netdev is started */ 1997 for (i = 0; i < vsi->num_queue_pairs; i++) { 1998 vsi->tx_rings[i]->count = new_tx_count; 1999 vsi->rx_rings[i]->count = new_rx_count; 2000 if (i40e_enabled_xdp_vsi(vsi)) 2001 vsi->xdp_rings[i]->count = new_tx_count; 2002 } 2003 vsi->num_tx_desc = new_tx_count; 2004 vsi->num_rx_desc = new_rx_count; 2005 goto done; 2006 } 2007 2008 /* We can't just free everything and then setup again, 2009 * because the ISRs in MSI-X mode get passed pointers 2010 * to the Tx and Rx ring structs. 2011 */ 2012 2013 /* alloc updated Tx and XDP Tx resources */ 2014 tx_alloc_queue_pairs = vsi->alloc_queue_pairs * 2015 (i40e_enabled_xdp_vsi(vsi) ? 2 : 1); 2016 if (new_tx_count != vsi->tx_rings[0]->count) { 2017 netdev_info(netdev, 2018 "Changing Tx descriptor count from %d to %d.\n", 2019 vsi->tx_rings[0]->count, new_tx_count); 2020 tx_rings = kcalloc(tx_alloc_queue_pairs, 2021 sizeof(struct i40e_ring), GFP_KERNEL); 2022 if (!tx_rings) { 2023 err = -ENOMEM; 2024 goto done; 2025 } 2026 2027 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2028 if (!i40e_active_tx_ring_index(vsi, i)) 2029 continue; 2030 2031 tx_rings[i] = *vsi->tx_rings[i]; 2032 tx_rings[i].count = new_tx_count; 2033 /* the desc and bi pointers will be reallocated in the 2034 * setup call 2035 */ 2036 tx_rings[i].desc = NULL; 2037 tx_rings[i].rx_bi = NULL; 2038 err = i40e_setup_tx_descriptors(&tx_rings[i]); 2039 if (err) { 2040 while (i) { 2041 i--; 2042 if (!i40e_active_tx_ring_index(vsi, i)) 2043 continue; 2044 i40e_free_tx_resources(&tx_rings[i]); 2045 } 2046 kfree(tx_rings); 2047 tx_rings = NULL; 2048 2049 goto done; 2050 } 2051 } 2052 } 2053 2054 /* alloc updated Rx resources */ 2055 if (new_rx_count != vsi->rx_rings[0]->count) { 2056 netdev_info(netdev, 2057 "Changing Rx descriptor count from %d to %d\n", 2058 vsi->rx_rings[0]->count, new_rx_count); 2059 rx_rings = kcalloc(vsi->alloc_queue_pairs, 2060 sizeof(struct i40e_ring), GFP_KERNEL); 2061 if (!rx_rings) { 2062 err = -ENOMEM; 2063 goto free_tx; 2064 } 2065 2066 for (i = 0; i < vsi->num_queue_pairs; i++) { 2067 u16 unused; 2068 2069 /* clone ring and setup updated count */ 2070 rx_rings[i] = *vsi->rx_rings[i]; 2071 rx_rings[i].count = new_rx_count; 2072 /* the desc and bi pointers will be reallocated in the 2073 * setup call 2074 */ 2075 rx_rings[i].desc = NULL; 2076 rx_rings[i].rx_bi = NULL; 2077 /* Clear cloned XDP RX-queue info before setup call */ 2078 memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq)); 2079 /* this is to allow wr32 to have something to write to 2080 * during early allocation of Rx buffers 2081 */ 2082 rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS; 2083 err = i40e_setup_rx_descriptors(&rx_rings[i]); 2084 if (err) 2085 goto rx_unwind; 2086 err = i40e_alloc_rx_bi(&rx_rings[i]); 2087 if (err) 2088 goto rx_unwind; 2089 2090 /* now allocate the Rx buffers to make sure the OS 2091 * has enough memory, any failure here means abort 2092 */ 2093 unused = I40E_DESC_UNUSED(&rx_rings[i]); 2094 err = i40e_alloc_rx_buffers(&rx_rings[i], unused); 2095 rx_unwind: 2096 if (err) { 2097 do { 2098 i40e_free_rx_resources(&rx_rings[i]); 2099 } while (i--); 2100 kfree(rx_rings); 2101 rx_rings = NULL; 2102 2103 goto free_tx; 2104 } 2105 } 2106 } 2107 2108 /* Bring interface down, copy in the new ring info, 2109 * then restore the interface 2110 */ 2111 i40e_down(vsi); 2112 2113 if (tx_rings) { 2114 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2115 if (i40e_active_tx_ring_index(vsi, i)) { 2116 i40e_free_tx_resources(vsi->tx_rings[i]); 2117 *vsi->tx_rings[i] = tx_rings[i]; 2118 } 2119 } 2120 kfree(tx_rings); 2121 tx_rings = NULL; 2122 } 2123 2124 if (rx_rings) { 2125 for (i = 0; i < vsi->num_queue_pairs; i++) { 2126 i40e_free_rx_resources(vsi->rx_rings[i]); 2127 /* get the real tail offset */ 2128 rx_rings[i].tail = vsi->rx_rings[i]->tail; 2129 /* this is to fake out the allocation routine 2130 * into thinking it has to realloc everything 2131 * but the recycling logic will let us re-use 2132 * the buffers allocated above 2133 */ 2134 rx_rings[i].next_to_use = 0; 2135 rx_rings[i].next_to_clean = 0; 2136 rx_rings[i].next_to_alloc = 0; 2137 /* do a struct copy */ 2138 *vsi->rx_rings[i] = rx_rings[i]; 2139 } 2140 kfree(rx_rings); 2141 rx_rings = NULL; 2142 } 2143 2144 vsi->num_tx_desc = new_tx_count; 2145 vsi->num_rx_desc = new_rx_count; 2146 i40e_up(vsi); 2147 2148 free_tx: 2149 /* error cleanup if the Rx allocations failed after getting Tx */ 2150 if (tx_rings) { 2151 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2152 if (i40e_active_tx_ring_index(vsi, i)) 2153 i40e_free_tx_resources(vsi->tx_rings[i]); 2154 } 2155 kfree(tx_rings); 2156 tx_rings = NULL; 2157 } 2158 2159 done: 2160 clear_bit(__I40E_CONFIG_BUSY, pf->state); 2161 2162 return err; 2163 } 2164 2165 /** 2166 * i40e_get_stats_count - return the stats count for a device 2167 * @netdev: the netdev to return the count for 2168 * 2169 * Returns the total number of statistics for this netdev. Note that even 2170 * though this is a function, it is required that the count for a specific 2171 * netdev must never change. Basing the count on static values such as the 2172 * maximum number of queues or the device type is ok. However, the API for 2173 * obtaining stats is *not* safe against changes based on non-static 2174 * values such as the *current* number of queues, or runtime flags. 2175 * 2176 * If a statistic is not always enabled, return it as part of the count 2177 * anyways, always return its string, and report its value as zero. 2178 **/ 2179 static int i40e_get_stats_count(struct net_device *netdev) 2180 { 2181 struct i40e_netdev_priv *np = netdev_priv(netdev); 2182 struct i40e_vsi *vsi = np->vsi; 2183 struct i40e_pf *pf = vsi->back; 2184 int stats_len; 2185 2186 if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1) 2187 stats_len = I40E_PF_STATS_LEN; 2188 else 2189 stats_len = I40E_VSI_STATS_LEN; 2190 2191 /* The number of stats reported for a given net_device must remain 2192 * constant throughout the life of that device. 2193 * 2194 * This is because the API for obtaining the size, strings, and stats 2195 * is spread out over three separate ethtool ioctls. There is no safe 2196 * way to lock the number of stats across these calls, so we must 2197 * assume that they will never change. 2198 * 2199 * Due to this, we report the maximum number of queues, even if not 2200 * every queue is currently configured. Since we always allocate 2201 * queues in pairs, we'll just use netdev->num_tx_queues * 2. This 2202 * works because the num_tx_queues is set at device creation and never 2203 * changes. 2204 */ 2205 stats_len += I40E_QUEUE_STATS_LEN * 2 * netdev->num_tx_queues; 2206 2207 return stats_len; 2208 } 2209 2210 static int i40e_get_sset_count(struct net_device *netdev, int sset) 2211 { 2212 struct i40e_netdev_priv *np = netdev_priv(netdev); 2213 struct i40e_vsi *vsi = np->vsi; 2214 struct i40e_pf *pf = vsi->back; 2215 2216 switch (sset) { 2217 case ETH_SS_TEST: 2218 return I40E_TEST_LEN; 2219 case ETH_SS_STATS: 2220 return i40e_get_stats_count(netdev); 2221 case ETH_SS_PRIV_FLAGS: 2222 return I40E_PRIV_FLAGS_STR_LEN + 2223 (pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0); 2224 default: 2225 return -EOPNOTSUPP; 2226 } 2227 } 2228 2229 /** 2230 * i40e_get_veb_tc_stats - copy VEB TC statistics to formatted structure 2231 * @tc: the TC statistics in VEB structure (veb->tc_stats) 2232 * @i: the index of traffic class in (veb->tc_stats) structure to copy 2233 * 2234 * Copy VEB TC statistics from structure of arrays (veb->tc_stats) to 2235 * one dimensional structure i40e_cp_veb_tc_stats. 2236 * Produce formatted i40e_cp_veb_tc_stats structure of the VEB TC 2237 * statistics for the given TC. 2238 **/ 2239 static struct i40e_cp_veb_tc_stats 2240 i40e_get_veb_tc_stats(struct i40e_veb_tc_stats *tc, unsigned int i) 2241 { 2242 struct i40e_cp_veb_tc_stats veb_tc = { 2243 .tc_rx_packets = tc->tc_rx_packets[i], 2244 .tc_rx_bytes = tc->tc_rx_bytes[i], 2245 .tc_tx_packets = tc->tc_tx_packets[i], 2246 .tc_tx_bytes = tc->tc_tx_bytes[i], 2247 }; 2248 2249 return veb_tc; 2250 } 2251 2252 /** 2253 * i40e_get_pfc_stats - copy HW PFC statistics to formatted structure 2254 * @pf: the PF device structure 2255 * @i: the priority value to copy 2256 * 2257 * The PFC stats are found as arrays in pf->stats, which is not easy to pass 2258 * into i40e_add_ethtool_stats. Produce a formatted i40e_pfc_stats structure 2259 * of the PFC stats for the given priority. 2260 **/ 2261 static inline struct i40e_pfc_stats 2262 i40e_get_pfc_stats(struct i40e_pf *pf, unsigned int i) 2263 { 2264 #define I40E_GET_PFC_STAT(stat, priority) \ 2265 .stat = pf->stats.stat[priority] 2266 2267 struct i40e_pfc_stats pfc = { 2268 I40E_GET_PFC_STAT(priority_xon_rx, i), 2269 I40E_GET_PFC_STAT(priority_xoff_rx, i), 2270 I40E_GET_PFC_STAT(priority_xon_tx, i), 2271 I40E_GET_PFC_STAT(priority_xoff_tx, i), 2272 I40E_GET_PFC_STAT(priority_xon_2_xoff, i), 2273 }; 2274 return pfc; 2275 } 2276 2277 /** 2278 * i40e_get_ethtool_stats - copy stat values into supplied buffer 2279 * @netdev: the netdev to collect stats for 2280 * @stats: ethtool stats command structure 2281 * @data: ethtool supplied buffer 2282 * 2283 * Copy the stats values for this netdev into the buffer. Expects data to be 2284 * pre-allocated to the size returned by i40e_get_stats_count.. Note that all 2285 * statistics must be copied in a static order, and the count must not change 2286 * for a given netdev. See i40e_get_stats_count for more details. 2287 * 2288 * If a statistic is not currently valid (such as a disabled queue), this 2289 * function reports its value as zero. 2290 **/ 2291 static void i40e_get_ethtool_stats(struct net_device *netdev, 2292 struct ethtool_stats *stats, u64 *data) 2293 { 2294 struct i40e_netdev_priv *np = netdev_priv(netdev); 2295 struct i40e_vsi *vsi = np->vsi; 2296 struct i40e_pf *pf = vsi->back; 2297 struct i40e_veb *veb = NULL; 2298 unsigned int i; 2299 bool veb_stats; 2300 u64 *p = data; 2301 2302 i40e_update_stats(vsi); 2303 2304 i40e_add_ethtool_stats(&data, i40e_get_vsi_stats_struct(vsi), 2305 i40e_gstrings_net_stats); 2306 2307 i40e_add_ethtool_stats(&data, vsi, i40e_gstrings_misc_stats); 2308 2309 rcu_read_lock(); 2310 for (i = 0; i < netdev->num_tx_queues; i++) { 2311 i40e_add_queue_stats(&data, READ_ONCE(vsi->tx_rings[i])); 2312 i40e_add_queue_stats(&data, READ_ONCE(vsi->rx_rings[i])); 2313 } 2314 rcu_read_unlock(); 2315 2316 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1) 2317 goto check_data_pointer; 2318 2319 veb_stats = ((pf->lan_veb != I40E_NO_VEB) && 2320 (pf->lan_veb < I40E_MAX_VEB) && 2321 (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)); 2322 2323 if (veb_stats) { 2324 veb = pf->veb[pf->lan_veb]; 2325 i40e_update_veb_stats(veb); 2326 } 2327 2328 /* If veb stats aren't enabled, pass NULL instead of the veb so that 2329 * we initialize stats to zero and update the data pointer 2330 * intelligently 2331 */ 2332 i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL, 2333 i40e_gstrings_veb_stats); 2334 2335 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) 2336 if (veb_stats) { 2337 struct i40e_cp_veb_tc_stats veb_tc = 2338 i40e_get_veb_tc_stats(&veb->tc_stats, i); 2339 2340 i40e_add_ethtool_stats(&data, &veb_tc, 2341 i40e_gstrings_veb_tc_stats); 2342 } else { 2343 i40e_add_ethtool_stats(&data, NULL, 2344 i40e_gstrings_veb_tc_stats); 2345 } 2346 2347 i40e_add_ethtool_stats(&data, pf, i40e_gstrings_stats); 2348 2349 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { 2350 struct i40e_pfc_stats pfc = i40e_get_pfc_stats(pf, i); 2351 2352 i40e_add_ethtool_stats(&data, &pfc, i40e_gstrings_pfc_stats); 2353 } 2354 2355 check_data_pointer: 2356 WARN_ONCE(data - p != i40e_get_stats_count(netdev), 2357 "ethtool stats count mismatch!"); 2358 } 2359 2360 /** 2361 * i40e_get_stat_strings - copy stat strings into supplied buffer 2362 * @netdev: the netdev to collect strings for 2363 * @data: supplied buffer to copy strings into 2364 * 2365 * Copy the strings related to stats for this netdev. Expects data to be 2366 * pre-allocated with the size reported by i40e_get_stats_count. Note that the 2367 * strings must be copied in a static order and the total count must not 2368 * change for a given netdev. See i40e_get_stats_count for more details. 2369 **/ 2370 static void i40e_get_stat_strings(struct net_device *netdev, u8 *data) 2371 { 2372 struct i40e_netdev_priv *np = netdev_priv(netdev); 2373 struct i40e_vsi *vsi = np->vsi; 2374 struct i40e_pf *pf = vsi->back; 2375 unsigned int i; 2376 u8 *p = data; 2377 2378 i40e_add_stat_strings(&data, i40e_gstrings_net_stats); 2379 2380 i40e_add_stat_strings(&data, i40e_gstrings_misc_stats); 2381 2382 for (i = 0; i < netdev->num_tx_queues; i++) { 2383 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, 2384 "tx", i); 2385 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, 2386 "rx", i); 2387 } 2388 2389 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1) 2390 goto check_data_pointer; 2391 2392 i40e_add_stat_strings(&data, i40e_gstrings_veb_stats); 2393 2394 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) 2395 i40e_add_stat_strings(&data, i40e_gstrings_veb_tc_stats, i); 2396 2397 i40e_add_stat_strings(&data, i40e_gstrings_stats); 2398 2399 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) 2400 i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i); 2401 2402 check_data_pointer: 2403 WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN, 2404 "stat strings count mismatch!"); 2405 } 2406 2407 static void i40e_get_priv_flag_strings(struct net_device *netdev, u8 *data) 2408 { 2409 struct i40e_netdev_priv *np = netdev_priv(netdev); 2410 struct i40e_vsi *vsi = np->vsi; 2411 struct i40e_pf *pf = vsi->back; 2412 char *p = (char *)data; 2413 unsigned int i; 2414 2415 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 2416 snprintf(p, ETH_GSTRING_LEN, "%s", 2417 i40e_gstrings_priv_flags[i].flag_string); 2418 p += ETH_GSTRING_LEN; 2419 } 2420 if (pf->hw.pf_id != 0) 2421 return; 2422 for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++) { 2423 snprintf(p, ETH_GSTRING_LEN, "%s", 2424 i40e_gl_gstrings_priv_flags[i].flag_string); 2425 p += ETH_GSTRING_LEN; 2426 } 2427 } 2428 2429 static void i40e_get_strings(struct net_device *netdev, u32 stringset, 2430 u8 *data) 2431 { 2432 switch (stringset) { 2433 case ETH_SS_TEST: 2434 memcpy(data, i40e_gstrings_test, 2435 I40E_TEST_LEN * ETH_GSTRING_LEN); 2436 break; 2437 case ETH_SS_STATS: 2438 i40e_get_stat_strings(netdev, data); 2439 break; 2440 case ETH_SS_PRIV_FLAGS: 2441 i40e_get_priv_flag_strings(netdev, data); 2442 break; 2443 default: 2444 break; 2445 } 2446 } 2447 2448 static int i40e_get_ts_info(struct net_device *dev, 2449 struct ethtool_ts_info *info) 2450 { 2451 struct i40e_pf *pf = i40e_netdev_to_pf(dev); 2452 2453 /* only report HW timestamping if PTP is enabled */ 2454 if (!(pf->flags & I40E_FLAG_PTP)) 2455 return ethtool_op_get_ts_info(dev, info); 2456 2457 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | 2458 SOF_TIMESTAMPING_RX_SOFTWARE | 2459 SOF_TIMESTAMPING_SOFTWARE | 2460 SOF_TIMESTAMPING_TX_HARDWARE | 2461 SOF_TIMESTAMPING_RX_HARDWARE | 2462 SOF_TIMESTAMPING_RAW_HARDWARE; 2463 2464 if (pf->ptp_clock) 2465 info->phc_index = ptp_clock_index(pf->ptp_clock); 2466 else 2467 info->phc_index = -1; 2468 2469 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON); 2470 2471 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | 2472 BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) | 2473 BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) | 2474 BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ); 2475 2476 if (pf->hw_features & I40E_HW_PTP_L4_CAPABLE) 2477 info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) | 2478 BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) | 2479 BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) | 2480 BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) | 2481 BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) | 2482 BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) | 2483 BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) | 2484 BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ); 2485 2486 return 0; 2487 } 2488 2489 static u64 i40e_link_test(struct net_device *netdev, u64 *data) 2490 { 2491 struct i40e_netdev_priv *np = netdev_priv(netdev); 2492 struct i40e_pf *pf = np->vsi->back; 2493 i40e_status status; 2494 bool link_up = false; 2495 2496 netif_info(pf, hw, netdev, "link test\n"); 2497 status = i40e_get_link_status(&pf->hw, &link_up); 2498 if (status) { 2499 netif_err(pf, drv, netdev, "link query timed out, please retry test\n"); 2500 *data = 1; 2501 return *data; 2502 } 2503 2504 if (link_up) 2505 *data = 0; 2506 else 2507 *data = 1; 2508 2509 return *data; 2510 } 2511 2512 static u64 i40e_reg_test(struct net_device *netdev, u64 *data) 2513 { 2514 struct i40e_netdev_priv *np = netdev_priv(netdev); 2515 struct i40e_pf *pf = np->vsi->back; 2516 2517 netif_info(pf, hw, netdev, "register test\n"); 2518 *data = i40e_diag_reg_test(&pf->hw); 2519 2520 return *data; 2521 } 2522 2523 static u64 i40e_eeprom_test(struct net_device *netdev, u64 *data) 2524 { 2525 struct i40e_netdev_priv *np = netdev_priv(netdev); 2526 struct i40e_pf *pf = np->vsi->back; 2527 2528 netif_info(pf, hw, netdev, "eeprom test\n"); 2529 *data = i40e_diag_eeprom_test(&pf->hw); 2530 2531 /* forcebly clear the NVM Update state machine */ 2532 pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT; 2533 2534 return *data; 2535 } 2536 2537 static u64 i40e_intr_test(struct net_device *netdev, u64 *data) 2538 { 2539 struct i40e_netdev_priv *np = netdev_priv(netdev); 2540 struct i40e_pf *pf = np->vsi->back; 2541 u16 swc_old = pf->sw_int_count; 2542 2543 netif_info(pf, hw, netdev, "interrupt test\n"); 2544 wr32(&pf->hw, I40E_PFINT_DYN_CTL0, 2545 (I40E_PFINT_DYN_CTL0_INTENA_MASK | 2546 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK | 2547 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK | 2548 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK | 2549 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK)); 2550 usleep_range(1000, 2000); 2551 *data = (swc_old == pf->sw_int_count); 2552 2553 return *data; 2554 } 2555 2556 static inline bool i40e_active_vfs(struct i40e_pf *pf) 2557 { 2558 struct i40e_vf *vfs = pf->vf; 2559 int i; 2560 2561 for (i = 0; i < pf->num_alloc_vfs; i++) 2562 if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states)) 2563 return true; 2564 return false; 2565 } 2566 2567 static inline bool i40e_active_vmdqs(struct i40e_pf *pf) 2568 { 2569 return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2); 2570 } 2571 2572 static void i40e_diag_test(struct net_device *netdev, 2573 struct ethtool_test *eth_test, u64 *data) 2574 { 2575 struct i40e_netdev_priv *np = netdev_priv(netdev); 2576 bool if_running = netif_running(netdev); 2577 struct i40e_pf *pf = np->vsi->back; 2578 2579 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 2580 /* Offline tests */ 2581 netif_info(pf, drv, netdev, "offline testing starting\n"); 2582 2583 set_bit(__I40E_TESTING, pf->state); 2584 2585 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) { 2586 dev_warn(&pf->pdev->dev, 2587 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n"); 2588 data[I40E_ETH_TEST_REG] = 1; 2589 data[I40E_ETH_TEST_EEPROM] = 1; 2590 data[I40E_ETH_TEST_INTR] = 1; 2591 data[I40E_ETH_TEST_LINK] = 1; 2592 eth_test->flags |= ETH_TEST_FL_FAILED; 2593 clear_bit(__I40E_TESTING, pf->state); 2594 goto skip_ol_tests; 2595 } 2596 2597 /* If the device is online then take it offline */ 2598 if (if_running) 2599 /* indicate we're in test mode */ 2600 i40e_close(netdev); 2601 else 2602 /* This reset does not affect link - if it is 2603 * changed to a type of reset that does affect 2604 * link then the following link test would have 2605 * to be moved to before the reset 2606 */ 2607 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 2608 2609 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 2610 eth_test->flags |= ETH_TEST_FL_FAILED; 2611 2612 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM])) 2613 eth_test->flags |= ETH_TEST_FL_FAILED; 2614 2615 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR])) 2616 eth_test->flags |= ETH_TEST_FL_FAILED; 2617 2618 /* run reg test last, a reset is required after it */ 2619 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG])) 2620 eth_test->flags |= ETH_TEST_FL_FAILED; 2621 2622 clear_bit(__I40E_TESTING, pf->state); 2623 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 2624 2625 if (if_running) 2626 i40e_open(netdev); 2627 } else { 2628 /* Online tests */ 2629 netif_info(pf, drv, netdev, "online testing starting\n"); 2630 2631 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 2632 eth_test->flags |= ETH_TEST_FL_FAILED; 2633 2634 /* Offline only tests, not run in online; pass by default */ 2635 data[I40E_ETH_TEST_REG] = 0; 2636 data[I40E_ETH_TEST_EEPROM] = 0; 2637 data[I40E_ETH_TEST_INTR] = 0; 2638 } 2639 2640 skip_ol_tests: 2641 2642 netif_info(pf, drv, netdev, "testing finished\n"); 2643 } 2644 2645 static void i40e_get_wol(struct net_device *netdev, 2646 struct ethtool_wolinfo *wol) 2647 { 2648 struct i40e_netdev_priv *np = netdev_priv(netdev); 2649 struct i40e_pf *pf = np->vsi->back; 2650 struct i40e_hw *hw = &pf->hw; 2651 u16 wol_nvm_bits; 2652 2653 /* NVM bit on means WoL disabled for the port */ 2654 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 2655 if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) { 2656 wol->supported = 0; 2657 wol->wolopts = 0; 2658 } else { 2659 wol->supported = WAKE_MAGIC; 2660 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0); 2661 } 2662 } 2663 2664 /** 2665 * i40e_set_wol - set the WakeOnLAN configuration 2666 * @netdev: the netdev in question 2667 * @wol: the ethtool WoL setting data 2668 **/ 2669 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 2670 { 2671 struct i40e_netdev_priv *np = netdev_priv(netdev); 2672 struct i40e_pf *pf = np->vsi->back; 2673 struct i40e_vsi *vsi = np->vsi; 2674 struct i40e_hw *hw = &pf->hw; 2675 u16 wol_nvm_bits; 2676 2677 /* WoL not supported if this isn't the controlling PF on the port */ 2678 if (hw->partition_id != 1) { 2679 i40e_partition_setting_complaint(pf); 2680 return -EOPNOTSUPP; 2681 } 2682 2683 if (vsi != pf->vsi[pf->lan_vsi]) 2684 return -EOPNOTSUPP; 2685 2686 /* NVM bit on means WoL disabled for the port */ 2687 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 2688 if (BIT(hw->port) & wol_nvm_bits) 2689 return -EOPNOTSUPP; 2690 2691 /* only magic packet is supported */ 2692 if (wol->wolopts & ~WAKE_MAGIC) 2693 return -EOPNOTSUPP; 2694 2695 /* is this a new value? */ 2696 if (pf->wol_en != !!wol->wolopts) { 2697 pf->wol_en = !!wol->wolopts; 2698 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en); 2699 } 2700 2701 return 0; 2702 } 2703 2704 static int i40e_set_phys_id(struct net_device *netdev, 2705 enum ethtool_phys_id_state state) 2706 { 2707 struct i40e_netdev_priv *np = netdev_priv(netdev); 2708 i40e_status ret = 0; 2709 struct i40e_pf *pf = np->vsi->back; 2710 struct i40e_hw *hw = &pf->hw; 2711 int blink_freq = 2; 2712 u16 temp_status; 2713 2714 switch (state) { 2715 case ETHTOOL_ID_ACTIVE: 2716 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) { 2717 pf->led_status = i40e_led_get(hw); 2718 } else { 2719 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) 2720 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL, 2721 NULL); 2722 ret = i40e_led_get_phy(hw, &temp_status, 2723 &pf->phy_led_val); 2724 pf->led_status = temp_status; 2725 } 2726 return blink_freq; 2727 case ETHTOOL_ID_ON: 2728 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) 2729 i40e_led_set(hw, 0xf, false); 2730 else 2731 ret = i40e_led_set_phy(hw, true, pf->led_status, 0); 2732 break; 2733 case ETHTOOL_ID_OFF: 2734 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) 2735 i40e_led_set(hw, 0x0, false); 2736 else 2737 ret = i40e_led_set_phy(hw, false, pf->led_status, 0); 2738 break; 2739 case ETHTOOL_ID_INACTIVE: 2740 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) { 2741 i40e_led_set(hw, pf->led_status, false); 2742 } else { 2743 ret = i40e_led_set_phy(hw, false, pf->led_status, 2744 (pf->phy_led_val | 2745 I40E_PHY_LED_MODE_ORIG)); 2746 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) 2747 i40e_aq_set_phy_debug(hw, 0, NULL); 2748 } 2749 break; 2750 default: 2751 break; 2752 } 2753 if (ret) 2754 return -ENOENT; 2755 else 2756 return 0; 2757 } 2758 2759 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt 2760 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also 2761 * 125us (8000 interrupts per second) == ITR(62) 2762 */ 2763 2764 /** 2765 * __i40e_get_coalesce - get per-queue coalesce settings 2766 * @netdev: the netdev to check 2767 * @ec: ethtool coalesce data structure 2768 * @queue: which queue to pick 2769 * 2770 * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs 2771 * are per queue. If queue is <0 then we default to queue 0 as the 2772 * representative value. 2773 **/ 2774 static int __i40e_get_coalesce(struct net_device *netdev, 2775 struct ethtool_coalesce *ec, 2776 int queue) 2777 { 2778 struct i40e_netdev_priv *np = netdev_priv(netdev); 2779 struct i40e_ring *rx_ring, *tx_ring; 2780 struct i40e_vsi *vsi = np->vsi; 2781 2782 ec->tx_max_coalesced_frames_irq = vsi->work_limit; 2783 ec->rx_max_coalesced_frames_irq = vsi->work_limit; 2784 2785 /* rx and tx usecs has per queue value. If user doesn't specify the 2786 * queue, return queue 0's value to represent. 2787 */ 2788 if (queue < 0) 2789 queue = 0; 2790 else if (queue >= vsi->num_queue_pairs) 2791 return -EINVAL; 2792 2793 rx_ring = vsi->rx_rings[queue]; 2794 tx_ring = vsi->tx_rings[queue]; 2795 2796 if (ITR_IS_DYNAMIC(rx_ring->itr_setting)) 2797 ec->use_adaptive_rx_coalesce = 1; 2798 2799 if (ITR_IS_DYNAMIC(tx_ring->itr_setting)) 2800 ec->use_adaptive_tx_coalesce = 1; 2801 2802 ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC; 2803 ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC; 2804 2805 /* we use the _usecs_high to store/set the interrupt rate limit 2806 * that the hardware supports, that almost but not quite 2807 * fits the original intent of the ethtool variable, 2808 * the rx_coalesce_usecs_high limits total interrupts 2809 * per second from both tx/rx sources. 2810 */ 2811 ec->rx_coalesce_usecs_high = vsi->int_rate_limit; 2812 ec->tx_coalesce_usecs_high = vsi->int_rate_limit; 2813 2814 return 0; 2815 } 2816 2817 /** 2818 * i40e_get_coalesce - get a netdev's coalesce settings 2819 * @netdev: the netdev to check 2820 * @ec: ethtool coalesce data structure 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 { 2829 return __i40e_get_coalesce(netdev, ec, -1); 2830 } 2831 2832 /** 2833 * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue 2834 * @netdev: netdev structure 2835 * @ec: ethtool's coalesce settings 2836 * @queue: the particular queue to read 2837 * 2838 * Will read a specific queue's coalesce settings 2839 **/ 2840 static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue, 2841 struct ethtool_coalesce *ec) 2842 { 2843 return __i40e_get_coalesce(netdev, ec, queue); 2844 } 2845 2846 /** 2847 * i40e_set_itr_per_queue - set ITR values for specific queue 2848 * @vsi: the VSI to set values for 2849 * @ec: coalesce settings from ethtool 2850 * @queue: the queue to modify 2851 * 2852 * Change the ITR settings for a specific queue. 2853 **/ 2854 static void i40e_set_itr_per_queue(struct i40e_vsi *vsi, 2855 struct ethtool_coalesce *ec, 2856 int queue) 2857 { 2858 struct i40e_ring *rx_ring = vsi->rx_rings[queue]; 2859 struct i40e_ring *tx_ring = vsi->tx_rings[queue]; 2860 struct i40e_pf *pf = vsi->back; 2861 struct i40e_hw *hw = &pf->hw; 2862 struct i40e_q_vector *q_vector; 2863 u16 intrl; 2864 2865 intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit); 2866 2867 rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs); 2868 tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs); 2869 2870 if (ec->use_adaptive_rx_coalesce) 2871 rx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2872 else 2873 rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2874 2875 if (ec->use_adaptive_tx_coalesce) 2876 tx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2877 else 2878 tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2879 2880 q_vector = rx_ring->q_vector; 2881 q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting); 2882 2883 q_vector = tx_ring->q_vector; 2884 q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting); 2885 2886 /* The interrupt handler itself will take care of programming 2887 * the Tx and Rx ITR values based on the values we have entered 2888 * into the q_vector, no need to write the values now. 2889 */ 2890 2891 wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl); 2892 i40e_flush(hw); 2893 } 2894 2895 /** 2896 * __i40e_set_coalesce - set coalesce settings for particular queue 2897 * @netdev: the netdev to change 2898 * @ec: ethtool coalesce settings 2899 * @queue: the queue to change 2900 * 2901 * Sets the coalesce settings for a particular queue. 2902 **/ 2903 static int __i40e_set_coalesce(struct net_device *netdev, 2904 struct ethtool_coalesce *ec, 2905 int queue) 2906 { 2907 struct i40e_netdev_priv *np = netdev_priv(netdev); 2908 u16 intrl_reg, cur_rx_itr, cur_tx_itr; 2909 struct i40e_vsi *vsi = np->vsi; 2910 struct i40e_pf *pf = vsi->back; 2911 int i; 2912 2913 if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq) 2914 vsi->work_limit = ec->tx_max_coalesced_frames_irq; 2915 2916 if (queue < 0) { 2917 cur_rx_itr = vsi->rx_rings[0]->itr_setting; 2918 cur_tx_itr = vsi->tx_rings[0]->itr_setting; 2919 } else if (queue < vsi->num_queue_pairs) { 2920 cur_rx_itr = vsi->rx_rings[queue]->itr_setting; 2921 cur_tx_itr = vsi->tx_rings[queue]->itr_setting; 2922 } else { 2923 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n", 2924 vsi->num_queue_pairs - 1); 2925 return -EINVAL; 2926 } 2927 2928 cur_tx_itr &= ~I40E_ITR_DYNAMIC; 2929 cur_rx_itr &= ~I40E_ITR_DYNAMIC; 2930 2931 /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */ 2932 if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) { 2933 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n"); 2934 return -EINVAL; 2935 } 2936 2937 if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) { 2938 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n", 2939 INTRL_REG_TO_USEC(I40E_MAX_INTRL)); 2940 return -EINVAL; 2941 } 2942 2943 if (ec->rx_coalesce_usecs != cur_rx_itr && 2944 ec->use_adaptive_rx_coalesce) { 2945 netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n"); 2946 return -EINVAL; 2947 } 2948 2949 if (ec->rx_coalesce_usecs > I40E_MAX_ITR) { 2950 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n"); 2951 return -EINVAL; 2952 } 2953 2954 if (ec->tx_coalesce_usecs != cur_tx_itr && 2955 ec->use_adaptive_tx_coalesce) { 2956 netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n"); 2957 return -EINVAL; 2958 } 2959 2960 if (ec->tx_coalesce_usecs > I40E_MAX_ITR) { 2961 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n"); 2962 return -EINVAL; 2963 } 2964 2965 if (ec->use_adaptive_rx_coalesce && !cur_rx_itr) 2966 ec->rx_coalesce_usecs = I40E_MIN_ITR; 2967 2968 if (ec->use_adaptive_tx_coalesce && !cur_tx_itr) 2969 ec->tx_coalesce_usecs = I40E_MIN_ITR; 2970 2971 intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high); 2972 vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg); 2973 if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) { 2974 netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n", 2975 vsi->int_rate_limit); 2976 } 2977 2978 /* rx and tx usecs has per queue value. If user doesn't specify the 2979 * queue, apply to all queues. 2980 */ 2981 if (queue < 0) { 2982 for (i = 0; i < vsi->num_queue_pairs; i++) 2983 i40e_set_itr_per_queue(vsi, ec, i); 2984 } else { 2985 i40e_set_itr_per_queue(vsi, ec, queue); 2986 } 2987 2988 return 0; 2989 } 2990 2991 /** 2992 * i40e_set_coalesce - set coalesce settings for every queue on the netdev 2993 * @netdev: the netdev to change 2994 * @ec: ethtool coalesce settings 2995 * 2996 * This will set each queue to the same coalesce settings. 2997 **/ 2998 static int i40e_set_coalesce(struct net_device *netdev, 2999 struct ethtool_coalesce *ec) 3000 { 3001 return __i40e_set_coalesce(netdev, ec, -1); 3002 } 3003 3004 /** 3005 * i40e_set_per_queue_coalesce - set specific queue's coalesce settings 3006 * @netdev: the netdev to change 3007 * @ec: ethtool's coalesce settings 3008 * @queue: the queue to change 3009 * 3010 * Sets the specified queue's coalesce settings. 3011 **/ 3012 static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue, 3013 struct ethtool_coalesce *ec) 3014 { 3015 return __i40e_set_coalesce(netdev, ec, queue); 3016 } 3017 3018 /** 3019 * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type 3020 * @pf: pointer to the physical function struct 3021 * @cmd: ethtool rxnfc command 3022 * 3023 * Returns Success if the flow is supported, else Invalid Input. 3024 **/ 3025 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd) 3026 { 3027 struct i40e_hw *hw = &pf->hw; 3028 u8 flow_pctype = 0; 3029 u64 i_set = 0; 3030 3031 cmd->data = 0; 3032 3033 switch (cmd->flow_type) { 3034 case TCP_V4_FLOW: 3035 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3036 break; 3037 case UDP_V4_FLOW: 3038 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3039 break; 3040 case TCP_V6_FLOW: 3041 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3042 break; 3043 case UDP_V6_FLOW: 3044 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3045 break; 3046 case SCTP_V4_FLOW: 3047 case AH_ESP_V4_FLOW: 3048 case AH_V4_FLOW: 3049 case ESP_V4_FLOW: 3050 case IPV4_FLOW: 3051 case SCTP_V6_FLOW: 3052 case AH_ESP_V6_FLOW: 3053 case AH_V6_FLOW: 3054 case ESP_V6_FLOW: 3055 case IPV6_FLOW: 3056 /* Default is src/dest for IP, no matter the L4 hashing */ 3057 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 3058 break; 3059 default: 3060 return -EINVAL; 3061 } 3062 3063 /* Read flow based hash input set register */ 3064 if (flow_pctype) { 3065 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, 3066 flow_pctype)) | 3067 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, 3068 flow_pctype)) << 32); 3069 } 3070 3071 /* Process bits of hash input set */ 3072 if (i_set) { 3073 if (i_set & I40E_L4_SRC_MASK) 3074 cmd->data |= RXH_L4_B_0_1; 3075 if (i_set & I40E_L4_DST_MASK) 3076 cmd->data |= RXH_L4_B_2_3; 3077 3078 if (cmd->flow_type == TCP_V4_FLOW || 3079 cmd->flow_type == UDP_V4_FLOW) { 3080 if (i_set & I40E_L3_SRC_MASK) 3081 cmd->data |= RXH_IP_SRC; 3082 if (i_set & I40E_L3_DST_MASK) 3083 cmd->data |= RXH_IP_DST; 3084 } else if (cmd->flow_type == TCP_V6_FLOW || 3085 cmd->flow_type == UDP_V6_FLOW) { 3086 if (i_set & I40E_L3_V6_SRC_MASK) 3087 cmd->data |= RXH_IP_SRC; 3088 if (i_set & I40E_L3_V6_DST_MASK) 3089 cmd->data |= RXH_IP_DST; 3090 } 3091 } 3092 3093 return 0; 3094 } 3095 3096 /** 3097 * i40e_check_mask - Check whether a mask field is set 3098 * @mask: the full mask value 3099 * @field: mask of the field to check 3100 * 3101 * If the given mask is fully set, return positive value. If the mask for the 3102 * field is fully unset, return zero. Otherwise return a negative error code. 3103 **/ 3104 static int i40e_check_mask(u64 mask, u64 field) 3105 { 3106 u64 value = mask & field; 3107 3108 if (value == field) 3109 return 1; 3110 else if (!value) 3111 return 0; 3112 else 3113 return -1; 3114 } 3115 3116 /** 3117 * i40e_parse_rx_flow_user_data - Deconstruct user-defined data 3118 * @fsp: pointer to rx flow specification 3119 * @data: pointer to userdef data structure for storage 3120 * 3121 * Read the user-defined data and deconstruct the value into a structure. No 3122 * other code should read the user-defined data, so as to ensure that every 3123 * place consistently reads the value correctly. 3124 * 3125 * The user-defined field is a 64bit Big Endian format value, which we 3126 * deconstruct by reading bits or bit fields from it. Single bit flags shall 3127 * be defined starting from the highest bits, while small bit field values 3128 * shall be defined starting from the lowest bits. 3129 * 3130 * Returns 0 if the data is valid, and non-zero if the userdef data is invalid 3131 * and the filter should be rejected. The data structure will always be 3132 * modified even if FLOW_EXT is not set. 3133 * 3134 **/ 3135 static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 3136 struct i40e_rx_flow_userdef *data) 3137 { 3138 u64 value, mask; 3139 int valid; 3140 3141 /* Zero memory first so it's always consistent. */ 3142 memset(data, 0, sizeof(*data)); 3143 3144 if (!(fsp->flow_type & FLOW_EXT)) 3145 return 0; 3146 3147 value = be64_to_cpu(*((__be64 *)fsp->h_ext.data)); 3148 mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data)); 3149 3150 #define I40E_USERDEF_FLEX_WORD GENMASK_ULL(15, 0) 3151 #define I40E_USERDEF_FLEX_OFFSET GENMASK_ULL(31, 16) 3152 #define I40E_USERDEF_FLEX_FILTER GENMASK_ULL(31, 0) 3153 3154 valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER); 3155 if (valid < 0) { 3156 return -EINVAL; 3157 } else if (valid) { 3158 data->flex_word = value & I40E_USERDEF_FLEX_WORD; 3159 data->flex_offset = 3160 (value & I40E_USERDEF_FLEX_OFFSET) >> 16; 3161 data->flex_filter = true; 3162 } 3163 3164 return 0; 3165 } 3166 3167 /** 3168 * i40e_fill_rx_flow_user_data - Fill in user-defined data field 3169 * @fsp: pointer to rx_flow specification 3170 * @data: pointer to return userdef data 3171 * 3172 * Reads the userdef data structure and properly fills in the user defined 3173 * fields of the rx_flow_spec. 3174 **/ 3175 static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 3176 struct i40e_rx_flow_userdef *data) 3177 { 3178 u64 value = 0, mask = 0; 3179 3180 if (data->flex_filter) { 3181 value |= data->flex_word; 3182 value |= (u64)data->flex_offset << 16; 3183 mask |= I40E_USERDEF_FLEX_FILTER; 3184 } 3185 3186 if (value || mask) 3187 fsp->flow_type |= FLOW_EXT; 3188 3189 *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value); 3190 *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask); 3191 } 3192 3193 /** 3194 * i40e_get_ethtool_fdir_all - Populates the rule count of a command 3195 * @pf: Pointer to the physical function struct 3196 * @cmd: The command to get or set Rx flow classification rules 3197 * @rule_locs: Array of used rule locations 3198 * 3199 * This function populates both the total and actual rule count of 3200 * the ethtool flow classification command 3201 * 3202 * Returns 0 on success or -EMSGSIZE if entry not found 3203 **/ 3204 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf, 3205 struct ethtool_rxnfc *cmd, 3206 u32 *rule_locs) 3207 { 3208 struct i40e_fdir_filter *rule; 3209 struct hlist_node *node2; 3210 int cnt = 0; 3211 3212 /* report total rule count */ 3213 cmd->data = i40e_get_fd_cnt_all(pf); 3214 3215 hlist_for_each_entry_safe(rule, node2, 3216 &pf->fdir_filter_list, fdir_node) { 3217 if (cnt == cmd->rule_cnt) 3218 return -EMSGSIZE; 3219 3220 rule_locs[cnt] = rule->fd_id; 3221 cnt++; 3222 } 3223 3224 cmd->rule_cnt = cnt; 3225 3226 return 0; 3227 } 3228 3229 /** 3230 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow 3231 * @pf: Pointer to the physical function struct 3232 * @cmd: The command to get or set Rx flow classification rules 3233 * 3234 * This function looks up a filter based on the Rx flow classification 3235 * command and fills the flow spec info for it if found 3236 * 3237 * Returns 0 on success or -EINVAL if filter not found 3238 **/ 3239 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf, 3240 struct ethtool_rxnfc *cmd) 3241 { 3242 struct ethtool_rx_flow_spec *fsp = 3243 (struct ethtool_rx_flow_spec *)&cmd->fs; 3244 struct i40e_rx_flow_userdef userdef = {0}; 3245 struct i40e_fdir_filter *rule = NULL; 3246 struct hlist_node *node2; 3247 u64 input_set; 3248 u16 index; 3249 3250 hlist_for_each_entry_safe(rule, node2, 3251 &pf->fdir_filter_list, fdir_node) { 3252 if (fsp->location <= rule->fd_id) 3253 break; 3254 } 3255 3256 if (!rule || fsp->location != rule->fd_id) 3257 return -EINVAL; 3258 3259 fsp->flow_type = rule->flow_type; 3260 if (fsp->flow_type == IP_USER_FLOW) { 3261 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4; 3262 fsp->h_u.usr_ip4_spec.proto = 0; 3263 fsp->m_u.usr_ip4_spec.proto = 0; 3264 } 3265 3266 if (fsp->flow_type == IPV6_USER_FLOW || 3267 fsp->flow_type == UDP_V6_FLOW || 3268 fsp->flow_type == TCP_V6_FLOW || 3269 fsp->flow_type == SCTP_V6_FLOW) { 3270 /* Reverse the src and dest notion, since the HW views them 3271 * from Tx perspective where as the user expects it from 3272 * Rx filter view. 3273 */ 3274 fsp->h_u.tcp_ip6_spec.psrc = rule->dst_port; 3275 fsp->h_u.tcp_ip6_spec.pdst = rule->src_port; 3276 memcpy(fsp->h_u.tcp_ip6_spec.ip6dst, rule->src_ip6, 3277 sizeof(__be32) * 4); 3278 memcpy(fsp->h_u.tcp_ip6_spec.ip6src, rule->dst_ip6, 3279 sizeof(__be32) * 4); 3280 } else { 3281 /* Reverse the src and dest notion, since the HW views them 3282 * from Tx perspective where as the user expects it from 3283 * Rx filter view. 3284 */ 3285 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port; 3286 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port; 3287 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip; 3288 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip; 3289 } 3290 3291 switch (rule->flow_type) { 3292 case SCTP_V4_FLOW: 3293 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP; 3294 break; 3295 case TCP_V4_FLOW: 3296 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3297 break; 3298 case UDP_V4_FLOW: 3299 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3300 break; 3301 case SCTP_V6_FLOW: 3302 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP; 3303 break; 3304 case TCP_V6_FLOW: 3305 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3306 break; 3307 case UDP_V6_FLOW: 3308 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3309 break; 3310 case IP_USER_FLOW: 3311 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER; 3312 break; 3313 case IPV6_USER_FLOW: 3314 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER; 3315 break; 3316 default: 3317 /* If we have stored a filter with a flow type not listed here 3318 * it is almost certainly a driver bug. WARN(), and then 3319 * assign the input_set as if all fields are enabled to avoid 3320 * reading unassigned memory. 3321 */ 3322 WARN(1, "Missing input set index for flow_type %d\n", 3323 rule->flow_type); 3324 input_set = 0xFFFFFFFFFFFFFFFFULL; 3325 goto no_input_set; 3326 } 3327 3328 input_set = i40e_read_fd_input_set(pf, index); 3329 3330 no_input_set: 3331 if (input_set & I40E_L3_V6_SRC_MASK) { 3332 fsp->m_u.tcp_ip6_spec.ip6src[0] = htonl(0xFFFFFFFF); 3333 fsp->m_u.tcp_ip6_spec.ip6src[1] = htonl(0xFFFFFFFF); 3334 fsp->m_u.tcp_ip6_spec.ip6src[2] = htonl(0xFFFFFFFF); 3335 fsp->m_u.tcp_ip6_spec.ip6src[3] = htonl(0xFFFFFFFF); 3336 } 3337 3338 if (input_set & I40E_L3_V6_DST_MASK) { 3339 fsp->m_u.tcp_ip6_spec.ip6dst[0] = htonl(0xFFFFFFFF); 3340 fsp->m_u.tcp_ip6_spec.ip6dst[1] = htonl(0xFFFFFFFF); 3341 fsp->m_u.tcp_ip6_spec.ip6dst[2] = htonl(0xFFFFFFFF); 3342 fsp->m_u.tcp_ip6_spec.ip6dst[3] = htonl(0xFFFFFFFF); 3343 } 3344 3345 if (input_set & I40E_L3_SRC_MASK) 3346 fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF); 3347 3348 if (input_set & I40E_L3_DST_MASK) 3349 fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF); 3350 3351 if (input_set & I40E_L4_SRC_MASK) 3352 fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF); 3353 3354 if (input_set & I40E_L4_DST_MASK) 3355 fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF); 3356 3357 if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET) 3358 fsp->ring_cookie = RX_CLS_FLOW_DISC; 3359 else 3360 fsp->ring_cookie = rule->q_index; 3361 3362 if (rule->vlan_tag) { 3363 fsp->h_ext.vlan_etype = rule->vlan_etype; 3364 fsp->m_ext.vlan_etype = htons(0xFFFF); 3365 fsp->h_ext.vlan_tci = rule->vlan_tag; 3366 fsp->m_ext.vlan_tci = htons(0xFFFF); 3367 fsp->flow_type |= FLOW_EXT; 3368 } 3369 3370 if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) { 3371 struct i40e_vsi *vsi; 3372 3373 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi); 3374 if (vsi && vsi->type == I40E_VSI_SRIOV) { 3375 /* VFs are zero-indexed by the driver, but ethtool 3376 * expects them to be one-indexed, so add one here 3377 */ 3378 u64 ring_vf = vsi->vf_id + 1; 3379 3380 ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF; 3381 fsp->ring_cookie |= ring_vf; 3382 } 3383 } 3384 3385 if (rule->flex_filter) { 3386 userdef.flex_filter = true; 3387 userdef.flex_word = be16_to_cpu(rule->flex_word); 3388 userdef.flex_offset = rule->flex_offset; 3389 } 3390 3391 i40e_fill_rx_flow_user_data(fsp, &userdef); 3392 3393 return 0; 3394 } 3395 3396 /** 3397 * i40e_get_rxnfc - command to get RX flow classification rules 3398 * @netdev: network interface device structure 3399 * @cmd: ethtool rxnfc command 3400 * @rule_locs: pointer to store rule data 3401 * 3402 * Returns Success if the command is supported. 3403 **/ 3404 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd, 3405 u32 *rule_locs) 3406 { 3407 struct i40e_netdev_priv *np = netdev_priv(netdev); 3408 struct i40e_vsi *vsi = np->vsi; 3409 struct i40e_pf *pf = vsi->back; 3410 int ret = -EOPNOTSUPP; 3411 3412 switch (cmd->cmd) { 3413 case ETHTOOL_GRXRINGS: 3414 cmd->data = vsi->rss_size; 3415 ret = 0; 3416 break; 3417 case ETHTOOL_GRXFH: 3418 ret = i40e_get_rss_hash_opts(pf, cmd); 3419 break; 3420 case ETHTOOL_GRXCLSRLCNT: 3421 cmd->rule_cnt = pf->fdir_pf_active_filters; 3422 /* report total rule count */ 3423 cmd->data = i40e_get_fd_cnt_all(pf); 3424 ret = 0; 3425 break; 3426 case ETHTOOL_GRXCLSRULE: 3427 ret = i40e_get_ethtool_fdir_entry(pf, cmd); 3428 break; 3429 case ETHTOOL_GRXCLSRLALL: 3430 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs); 3431 break; 3432 default: 3433 break; 3434 } 3435 3436 return ret; 3437 } 3438 3439 /** 3440 * i40e_get_rss_hash_bits - Read RSS Hash bits from register 3441 * @nfc: pointer to user request 3442 * @i_setc: bits currently set 3443 * 3444 * Returns value of bits to be set per user request 3445 **/ 3446 static u64 i40e_get_rss_hash_bits(struct ethtool_rxnfc *nfc, u64 i_setc) 3447 { 3448 u64 i_set = i_setc; 3449 u64 src_l3 = 0, dst_l3 = 0; 3450 3451 if (nfc->data & RXH_L4_B_0_1) 3452 i_set |= I40E_L4_SRC_MASK; 3453 else 3454 i_set &= ~I40E_L4_SRC_MASK; 3455 if (nfc->data & RXH_L4_B_2_3) 3456 i_set |= I40E_L4_DST_MASK; 3457 else 3458 i_set &= ~I40E_L4_DST_MASK; 3459 3460 if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) { 3461 src_l3 = I40E_L3_V6_SRC_MASK; 3462 dst_l3 = I40E_L3_V6_DST_MASK; 3463 } else if (nfc->flow_type == TCP_V4_FLOW || 3464 nfc->flow_type == UDP_V4_FLOW) { 3465 src_l3 = I40E_L3_SRC_MASK; 3466 dst_l3 = I40E_L3_DST_MASK; 3467 } else { 3468 /* Any other flow type are not supported here */ 3469 return i_set; 3470 } 3471 3472 if (nfc->data & RXH_IP_SRC) 3473 i_set |= src_l3; 3474 else 3475 i_set &= ~src_l3; 3476 if (nfc->data & RXH_IP_DST) 3477 i_set |= dst_l3; 3478 else 3479 i_set &= ~dst_l3; 3480 3481 return i_set; 3482 } 3483 3484 /** 3485 * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash 3486 * @pf: pointer to the physical function struct 3487 * @nfc: ethtool rxnfc command 3488 * 3489 * Returns Success if the flow input set is supported. 3490 **/ 3491 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc) 3492 { 3493 struct i40e_hw *hw = &pf->hw; 3494 u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) | 3495 ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32); 3496 u8 flow_pctype = 0; 3497 u64 i_set, i_setc; 3498 3499 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 3500 dev_err(&pf->pdev->dev, 3501 "Change of RSS hash input set is not supported when MFP mode is enabled\n"); 3502 return -EOPNOTSUPP; 3503 } 3504 3505 /* RSS does not support anything other than hashing 3506 * to queues on src and dst IPs and ports 3507 */ 3508 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 3509 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 3510 return -EINVAL; 3511 3512 switch (nfc->flow_type) { 3513 case TCP_V4_FLOW: 3514 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3515 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3516 hena |= 3517 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK); 3518 break; 3519 case TCP_V6_FLOW: 3520 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_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 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3525 hena |= 3526 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK); 3527 break; 3528 case UDP_V4_FLOW: 3529 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3530 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3531 hena |= 3532 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) | 3533 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP); 3534 3535 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 3536 break; 3537 case UDP_V6_FLOW: 3538 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3539 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3540 hena |= 3541 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) | 3542 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP); 3543 3544 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 3545 break; 3546 case AH_ESP_V4_FLOW: 3547 case AH_V4_FLOW: 3548 case ESP_V4_FLOW: 3549 case SCTP_V4_FLOW: 3550 if ((nfc->data & RXH_L4_B_0_1) || 3551 (nfc->data & RXH_L4_B_2_3)) 3552 return -EINVAL; 3553 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER); 3554 break; 3555 case AH_ESP_V6_FLOW: 3556 case AH_V6_FLOW: 3557 case ESP_V6_FLOW: 3558 case SCTP_V6_FLOW: 3559 if ((nfc->data & RXH_L4_B_0_1) || 3560 (nfc->data & RXH_L4_B_2_3)) 3561 return -EINVAL; 3562 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER); 3563 break; 3564 case IPV4_FLOW: 3565 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) | 3566 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 3567 break; 3568 case IPV6_FLOW: 3569 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) | 3570 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 3571 break; 3572 default: 3573 return -EINVAL; 3574 } 3575 3576 if (flow_pctype) { 3577 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, 3578 flow_pctype)) | 3579 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, 3580 flow_pctype)) << 32); 3581 i_set = i40e_get_rss_hash_bits(nfc, i_setc); 3582 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_pctype), 3583 (u32)i_set); 3584 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_pctype), 3585 (u32)(i_set >> 32)); 3586 hena |= BIT_ULL(flow_pctype); 3587 } 3588 3589 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena); 3590 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32)); 3591 i40e_flush(hw); 3592 3593 return 0; 3594 } 3595 3596 /** 3597 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry 3598 * @vsi: Pointer to the targeted VSI 3599 * @input: The filter to update or NULL to indicate deletion 3600 * @sw_idx: Software index to the filter 3601 * @cmd: The command to get or set Rx flow classification rules 3602 * 3603 * This function updates (or deletes) a Flow Director entry from 3604 * the hlist of the corresponding PF 3605 * 3606 * Returns 0 on success 3607 **/ 3608 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi, 3609 struct i40e_fdir_filter *input, 3610 u16 sw_idx, 3611 struct ethtool_rxnfc *cmd) 3612 { 3613 struct i40e_fdir_filter *rule, *parent; 3614 struct i40e_pf *pf = vsi->back; 3615 struct hlist_node *node2; 3616 int err = -EINVAL; 3617 3618 parent = NULL; 3619 rule = NULL; 3620 3621 hlist_for_each_entry_safe(rule, node2, 3622 &pf->fdir_filter_list, fdir_node) { 3623 /* hash found, or no matching entry */ 3624 if (rule->fd_id >= sw_idx) 3625 break; 3626 parent = rule; 3627 } 3628 3629 /* if there is an old rule occupying our place remove it */ 3630 if (rule && (rule->fd_id == sw_idx)) { 3631 /* Remove this rule, since we're either deleting it, or 3632 * replacing it. 3633 */ 3634 err = i40e_add_del_fdir(vsi, rule, false); 3635 hlist_del(&rule->fdir_node); 3636 kfree(rule); 3637 pf->fdir_pf_active_filters--; 3638 } 3639 3640 /* If we weren't given an input, this is a delete, so just return the 3641 * error code indicating if there was an entry at the requested slot 3642 */ 3643 if (!input) 3644 return err; 3645 3646 /* Otherwise, install the new rule as requested */ 3647 INIT_HLIST_NODE(&input->fdir_node); 3648 3649 /* add filter to the list */ 3650 if (parent) 3651 hlist_add_behind(&input->fdir_node, &parent->fdir_node); 3652 else 3653 hlist_add_head(&input->fdir_node, 3654 &pf->fdir_filter_list); 3655 3656 /* update counts */ 3657 pf->fdir_pf_active_filters++; 3658 3659 return 0; 3660 } 3661 3662 /** 3663 * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table 3664 * @pf: pointer to PF structure 3665 * 3666 * This function searches the list of filters and determines which FLX_PIT 3667 * entries are still required. It will prune any entries which are no longer 3668 * in use after the deletion. 3669 **/ 3670 static void i40e_prune_flex_pit_list(struct i40e_pf *pf) 3671 { 3672 struct i40e_flex_pit *entry, *tmp; 3673 struct i40e_fdir_filter *rule; 3674 3675 /* First, we'll check the l3 table */ 3676 list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) { 3677 bool found = false; 3678 3679 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3680 if (rule->flow_type != IP_USER_FLOW) 3681 continue; 3682 if (rule->flex_filter && 3683 rule->flex_offset == entry->src_offset) { 3684 found = true; 3685 break; 3686 } 3687 } 3688 3689 /* If we didn't find the filter, then we can prune this entry 3690 * from the list. 3691 */ 3692 if (!found) { 3693 list_del(&entry->list); 3694 kfree(entry); 3695 } 3696 } 3697 3698 /* Followed by the L4 table */ 3699 list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) { 3700 bool found = false; 3701 3702 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3703 /* Skip this filter if it's L3, since we already 3704 * checked those in the above loop 3705 */ 3706 if (rule->flow_type == IP_USER_FLOW) 3707 continue; 3708 if (rule->flex_filter && 3709 rule->flex_offset == entry->src_offset) { 3710 found = true; 3711 break; 3712 } 3713 } 3714 3715 /* If we didn't find the filter, then we can prune this entry 3716 * from the list. 3717 */ 3718 if (!found) { 3719 list_del(&entry->list); 3720 kfree(entry); 3721 } 3722 } 3723 } 3724 3725 /** 3726 * i40e_del_fdir_entry - Deletes a Flow Director filter entry 3727 * @vsi: Pointer to the targeted VSI 3728 * @cmd: The command to get or set Rx flow classification rules 3729 * 3730 * The function removes a Flow Director filter entry from the 3731 * hlist of the corresponding PF 3732 * 3733 * Returns 0 on success 3734 */ 3735 static int i40e_del_fdir_entry(struct i40e_vsi *vsi, 3736 struct ethtool_rxnfc *cmd) 3737 { 3738 struct ethtool_rx_flow_spec *fsp = 3739 (struct ethtool_rx_flow_spec *)&cmd->fs; 3740 struct i40e_pf *pf = vsi->back; 3741 int ret = 0; 3742 3743 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 3744 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 3745 return -EBUSY; 3746 3747 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 3748 return -EBUSY; 3749 3750 ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd); 3751 3752 i40e_prune_flex_pit_list(pf); 3753 3754 i40e_fdir_check_and_reenable(pf); 3755 return ret; 3756 } 3757 3758 /** 3759 * i40e_unused_pit_index - Find an unused PIT index for given list 3760 * @pf: the PF data structure 3761 * 3762 * Find the first unused flexible PIT index entry. We search both the L3 and 3763 * L4 flexible PIT lists so that the returned index is unique and unused by 3764 * either currently programmed L3 or L4 filters. We use a bit field as storage 3765 * to track which indexes are already used. 3766 **/ 3767 static u8 i40e_unused_pit_index(struct i40e_pf *pf) 3768 { 3769 unsigned long available_index = 0xFF; 3770 struct i40e_flex_pit *entry; 3771 3772 /* We need to make sure that the new index isn't in use by either L3 3773 * or L4 filters so that IP_USER_FLOW filters can program both L3 and 3774 * L4 to use the same index. 3775 */ 3776 3777 list_for_each_entry(entry, &pf->l4_flex_pit_list, list) 3778 clear_bit(entry->pit_index, &available_index); 3779 3780 list_for_each_entry(entry, &pf->l3_flex_pit_list, list) 3781 clear_bit(entry->pit_index, &available_index); 3782 3783 return find_first_bit(&available_index, 8); 3784 } 3785 3786 /** 3787 * i40e_find_flex_offset - Find an existing flex src_offset 3788 * @flex_pit_list: L3 or L4 flex PIT list 3789 * @src_offset: new src_offset to find 3790 * 3791 * Searches the flex_pit_list for an existing offset. If no offset is 3792 * currently programmed, then this will return an ERR_PTR if there is no space 3793 * to add a new offset, otherwise it returns NULL. 3794 **/ 3795 static 3796 struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list, 3797 u16 src_offset) 3798 { 3799 struct i40e_flex_pit *entry; 3800 int size = 0; 3801 3802 /* Search for the src_offset first. If we find a matching entry 3803 * already programmed, we can simply re-use it. 3804 */ 3805 list_for_each_entry(entry, flex_pit_list, list) { 3806 size++; 3807 if (entry->src_offset == src_offset) 3808 return entry; 3809 } 3810 3811 /* If we haven't found an entry yet, then the provided src offset has 3812 * not yet been programmed. We will program the src offset later on, 3813 * but we need to indicate whether there is enough space to do so 3814 * here. We'll make use of ERR_PTR for this purpose. 3815 */ 3816 if (size >= I40E_FLEX_PIT_TABLE_SIZE) 3817 return ERR_PTR(-ENOSPC); 3818 3819 return NULL; 3820 } 3821 3822 /** 3823 * i40e_add_flex_offset - Add src_offset to flex PIT table list 3824 * @flex_pit_list: L3 or L4 flex PIT list 3825 * @src_offset: new src_offset to add 3826 * @pit_index: the PIT index to program 3827 * 3828 * This function programs the new src_offset to the list. It is expected that 3829 * i40e_find_flex_offset has already been tried and returned NULL, indicating 3830 * that this offset is not programmed, and that the list has enough space to 3831 * store another offset. 3832 * 3833 * Returns 0 on success, and negative value on error. 3834 **/ 3835 static int i40e_add_flex_offset(struct list_head *flex_pit_list, 3836 u16 src_offset, 3837 u8 pit_index) 3838 { 3839 struct i40e_flex_pit *new_pit, *entry; 3840 3841 new_pit = kzalloc(sizeof(*entry), GFP_KERNEL); 3842 if (!new_pit) 3843 return -ENOMEM; 3844 3845 new_pit->src_offset = src_offset; 3846 new_pit->pit_index = pit_index; 3847 3848 /* We need to insert this item such that the list is sorted by 3849 * src_offset in ascending order. 3850 */ 3851 list_for_each_entry(entry, flex_pit_list, list) { 3852 if (new_pit->src_offset < entry->src_offset) { 3853 list_add_tail(&new_pit->list, &entry->list); 3854 return 0; 3855 } 3856 3857 /* If we found an entry with our offset already programmed we 3858 * can simply return here, after freeing the memory. However, 3859 * if the pit_index does not match we need to report an error. 3860 */ 3861 if (new_pit->src_offset == entry->src_offset) { 3862 int err = 0; 3863 3864 /* If the PIT index is not the same we can't re-use 3865 * the entry, so we must report an error. 3866 */ 3867 if (new_pit->pit_index != entry->pit_index) 3868 err = -EINVAL; 3869 3870 kfree(new_pit); 3871 return err; 3872 } 3873 } 3874 3875 /* If we reached here, then we haven't yet added the item. This means 3876 * that we should add the item at the end of the list. 3877 */ 3878 list_add_tail(&new_pit->list, flex_pit_list); 3879 return 0; 3880 } 3881 3882 /** 3883 * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table 3884 * @pf: Pointer to the PF structure 3885 * @flex_pit_list: list of flexible src offsets in use 3886 * @flex_pit_start: index to first entry for this section of the table 3887 * 3888 * In order to handle flexible data, the hardware uses a table of values 3889 * called the FLX_PIT table. This table is used to indicate which sections of 3890 * the input correspond to what PIT index values. Unfortunately, hardware is 3891 * very restrictive about programming this table. Entries must be ordered by 3892 * src_offset in ascending order, without duplicates. Additionally, unused 3893 * entries must be set to the unused index value, and must have valid size and 3894 * length according to the src_offset ordering. 3895 * 3896 * This function will reprogram the FLX_PIT register from a book-keeping 3897 * structure that we guarantee is already ordered correctly, and has no more 3898 * than 3 entries. 3899 * 3900 * To make things easier, we only support flexible values of one word length, 3901 * rather than allowing variable length flexible values. 3902 **/ 3903 static void __i40e_reprogram_flex_pit(struct i40e_pf *pf, 3904 struct list_head *flex_pit_list, 3905 int flex_pit_start) 3906 { 3907 struct i40e_flex_pit *entry = NULL; 3908 u16 last_offset = 0; 3909 int i = 0, j = 0; 3910 3911 /* First, loop over the list of flex PIT entries, and reprogram the 3912 * registers. 3913 */ 3914 list_for_each_entry(entry, flex_pit_list, list) { 3915 /* We have to be careful when programming values for the 3916 * largest SRC_OFFSET value. It is possible that adding 3917 * additional empty values at the end would overflow the space 3918 * for the SRC_OFFSET in the FLX_PIT register. To avoid this, 3919 * we check here and add the empty values prior to adding the 3920 * largest value. 3921 * 3922 * To determine this, we will use a loop from i+1 to 3, which 3923 * will determine whether the unused entries would have valid 3924 * SRC_OFFSET. Note that there cannot be extra entries past 3925 * this value, because the only valid values would have been 3926 * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not 3927 * have been added to the list in the first place. 3928 */ 3929 for (j = i + 1; j < 3; j++) { 3930 u16 offset = entry->src_offset + j; 3931 int index = flex_pit_start + i; 3932 u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 3933 1, 3934 offset - 3); 3935 3936 if (offset > I40E_MAX_FLEX_SRC_OFFSET) { 3937 i40e_write_rx_ctl(&pf->hw, 3938 I40E_PRTQF_FLX_PIT(index), 3939 value); 3940 i++; 3941 } 3942 } 3943 3944 /* Now, we can program the actual value into the table */ 3945 i40e_write_rx_ctl(&pf->hw, 3946 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 3947 I40E_FLEX_PREP_VAL(entry->pit_index + 50, 3948 1, 3949 entry->src_offset)); 3950 i++; 3951 } 3952 3953 /* In order to program the last entries in the table, we need to 3954 * determine the valid offset. If the list is empty, we'll just start 3955 * with 0. Otherwise, we'll start with the last item offset and add 1. 3956 * This ensures that all entries have valid sizes. If we don't do this 3957 * correctly, the hardware will disable flexible field parsing. 3958 */ 3959 if (!list_empty(flex_pit_list)) 3960 last_offset = list_prev_entry(entry, list)->src_offset + 1; 3961 3962 for (; i < 3; i++, last_offset++) { 3963 i40e_write_rx_ctl(&pf->hw, 3964 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 3965 I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 3966 1, 3967 last_offset)); 3968 } 3969 } 3970 3971 /** 3972 * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change 3973 * @pf: pointer to the PF structure 3974 * 3975 * This function reprograms both the L3 and L4 FLX_PIT tables. See the 3976 * internal helper function for implementation details. 3977 **/ 3978 static void i40e_reprogram_flex_pit(struct i40e_pf *pf) 3979 { 3980 __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list, 3981 I40E_FLEX_PIT_IDX_START_L3); 3982 3983 __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list, 3984 I40E_FLEX_PIT_IDX_START_L4); 3985 3986 /* We also need to program the L3 and L4 GLQF ORT register */ 3987 i40e_write_rx_ctl(&pf->hw, 3988 I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX), 3989 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3, 3990 3, 1)); 3991 3992 i40e_write_rx_ctl(&pf->hw, 3993 I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX), 3994 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4, 3995 3, 1)); 3996 } 3997 3998 /** 3999 * i40e_flow_str - Converts a flow_type into a human readable string 4000 * @fsp: the flow specification 4001 * 4002 * Currently only flow types we support are included here, and the string 4003 * value attempts to match what ethtool would use to configure this flow type. 4004 **/ 4005 static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp) 4006 { 4007 switch (fsp->flow_type & ~FLOW_EXT) { 4008 case TCP_V4_FLOW: 4009 return "tcp4"; 4010 case UDP_V4_FLOW: 4011 return "udp4"; 4012 case SCTP_V4_FLOW: 4013 return "sctp4"; 4014 case IP_USER_FLOW: 4015 return "ip4"; 4016 case TCP_V6_FLOW: 4017 return "tcp6"; 4018 case UDP_V6_FLOW: 4019 return "udp6"; 4020 case SCTP_V6_FLOW: 4021 return "sctp6"; 4022 case IPV6_USER_FLOW: 4023 return "ip6"; 4024 default: 4025 return "unknown"; 4026 } 4027 } 4028 4029 /** 4030 * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index 4031 * @pit_index: PIT index to convert 4032 * 4033 * Returns the mask for a given PIT index. Will return 0 if the pit_index is 4034 * of range. 4035 **/ 4036 static u64 i40e_pit_index_to_mask(int pit_index) 4037 { 4038 switch (pit_index) { 4039 case 0: 4040 return I40E_FLEX_50_MASK; 4041 case 1: 4042 return I40E_FLEX_51_MASK; 4043 case 2: 4044 return I40E_FLEX_52_MASK; 4045 case 3: 4046 return I40E_FLEX_53_MASK; 4047 case 4: 4048 return I40E_FLEX_54_MASK; 4049 case 5: 4050 return I40E_FLEX_55_MASK; 4051 case 6: 4052 return I40E_FLEX_56_MASK; 4053 case 7: 4054 return I40E_FLEX_57_MASK; 4055 default: 4056 return 0; 4057 } 4058 } 4059 4060 /** 4061 * i40e_print_input_set - Show changes between two input sets 4062 * @vsi: the vsi being configured 4063 * @old: the old input set 4064 * @new: the new input set 4065 * 4066 * Print the difference between old and new input sets by showing which series 4067 * of words are toggled on or off. Only displays the bits we actually support 4068 * changing. 4069 **/ 4070 static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new) 4071 { 4072 struct i40e_pf *pf = vsi->back; 4073 bool old_value, new_value; 4074 int i; 4075 4076 old_value = !!(old & I40E_L3_SRC_MASK); 4077 new_value = !!(new & I40E_L3_SRC_MASK); 4078 if (old_value != new_value) 4079 netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n", 4080 old_value ? "ON" : "OFF", 4081 new_value ? "ON" : "OFF"); 4082 4083 old_value = !!(old & I40E_L3_DST_MASK); 4084 new_value = !!(new & I40E_L3_DST_MASK); 4085 if (old_value != new_value) 4086 netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n", 4087 old_value ? "ON" : "OFF", 4088 new_value ? "ON" : "OFF"); 4089 4090 old_value = !!(old & I40E_L4_SRC_MASK); 4091 new_value = !!(new & I40E_L4_SRC_MASK); 4092 if (old_value != new_value) 4093 netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n", 4094 old_value ? "ON" : "OFF", 4095 new_value ? "ON" : "OFF"); 4096 4097 old_value = !!(old & I40E_L4_DST_MASK); 4098 new_value = !!(new & I40E_L4_DST_MASK); 4099 if (old_value != new_value) 4100 netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n", 4101 old_value ? "ON" : "OFF", 4102 new_value ? "ON" : "OFF"); 4103 4104 old_value = !!(old & I40E_VERIFY_TAG_MASK); 4105 new_value = !!(new & I40E_VERIFY_TAG_MASK); 4106 if (old_value != new_value) 4107 netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n", 4108 old_value ? "ON" : "OFF", 4109 new_value ? "ON" : "OFF"); 4110 4111 /* Show change of flexible filter entries */ 4112 for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) { 4113 u64 flex_mask = i40e_pit_index_to_mask(i); 4114 4115 old_value = !!(old & flex_mask); 4116 new_value = !!(new & flex_mask); 4117 if (old_value != new_value) 4118 netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n", 4119 i, 4120 old_value ? "ON" : "OFF", 4121 new_value ? "ON" : "OFF"); 4122 } 4123 4124 netif_info(pf, drv, vsi->netdev, " Current input set: %0llx\n", 4125 old); 4126 netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n", 4127 new); 4128 } 4129 4130 /** 4131 * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid 4132 * @vsi: pointer to the targeted VSI 4133 * @fsp: pointer to Rx flow specification 4134 * @userdef: userdefined data from flow specification 4135 * 4136 * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support 4137 * for partial matches exists with a few limitations. First, hardware only 4138 * supports masking by word boundary (2 bytes) and not per individual bit. 4139 * Second, hardware is limited to using one mask for a flow type and cannot 4140 * use a separate mask for each filter. 4141 * 4142 * To support these limitations, if we already have a configured filter for 4143 * the specified type, this function enforces that new filters of the type 4144 * match the configured input set. Otherwise, if we do not have a filter of 4145 * the specified type, we allow the input set to be updated to match the 4146 * desired filter. 4147 * 4148 * To help ensure that administrators understand why filters weren't displayed 4149 * as supported, we print a diagnostic message displaying how the input set 4150 * would change and warning to delete the preexisting filters if required. 4151 * 4152 * Returns 0 on successful input set match, and a negative return code on 4153 * failure. 4154 **/ 4155 static int i40e_check_fdir_input_set(struct i40e_vsi *vsi, 4156 struct ethtool_rx_flow_spec *fsp, 4157 struct i40e_rx_flow_userdef *userdef) 4158 { 4159 static const __be32 ipv6_full_mask[4] = {cpu_to_be32(0xffffffff), 4160 cpu_to_be32(0xffffffff), cpu_to_be32(0xffffffff), 4161 cpu_to_be32(0xffffffff)}; 4162 struct ethtool_tcpip6_spec *tcp_ip6_spec; 4163 struct ethtool_usrip6_spec *usr_ip6_spec; 4164 struct ethtool_tcpip4_spec *tcp_ip4_spec; 4165 struct ethtool_usrip4_spec *usr_ip4_spec; 4166 struct i40e_pf *pf = vsi->back; 4167 u64 current_mask, new_mask; 4168 bool new_flex_offset = false; 4169 bool flex_l3 = false; 4170 u16 *fdir_filter_count; 4171 u16 index, src_offset = 0; 4172 u8 pit_index = 0; 4173 int err; 4174 4175 switch (fsp->flow_type & ~FLOW_EXT) { 4176 case SCTP_V4_FLOW: 4177 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP; 4178 fdir_filter_count = &pf->fd_sctp4_filter_cnt; 4179 break; 4180 case TCP_V4_FLOW: 4181 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 4182 fdir_filter_count = &pf->fd_tcp4_filter_cnt; 4183 break; 4184 case UDP_V4_FLOW: 4185 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 4186 fdir_filter_count = &pf->fd_udp4_filter_cnt; 4187 break; 4188 case SCTP_V6_FLOW: 4189 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP; 4190 fdir_filter_count = &pf->fd_sctp6_filter_cnt; 4191 break; 4192 case TCP_V6_FLOW: 4193 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 4194 fdir_filter_count = &pf->fd_tcp6_filter_cnt; 4195 break; 4196 case UDP_V6_FLOW: 4197 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 4198 fdir_filter_count = &pf->fd_udp6_filter_cnt; 4199 break; 4200 case IP_USER_FLOW: 4201 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER; 4202 fdir_filter_count = &pf->fd_ip4_filter_cnt; 4203 flex_l3 = true; 4204 break; 4205 case IPV6_USER_FLOW: 4206 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER; 4207 fdir_filter_count = &pf->fd_ip6_filter_cnt; 4208 flex_l3 = true; 4209 break; 4210 default: 4211 return -EOPNOTSUPP; 4212 } 4213 4214 /* Read the current input set from register memory. */ 4215 current_mask = i40e_read_fd_input_set(pf, index); 4216 new_mask = current_mask; 4217 4218 /* Determine, if any, the required changes to the input set in order 4219 * to support the provided mask. 4220 * 4221 * Hardware only supports masking at word (2 byte) granularity and does 4222 * not support full bitwise masking. This implementation simplifies 4223 * even further and only supports fully enabled or fully disabled 4224 * masks for each field, even though we could split the ip4src and 4225 * ip4dst fields. 4226 */ 4227 switch (fsp->flow_type & ~FLOW_EXT) { 4228 case SCTP_V4_FLOW: 4229 new_mask &= ~I40E_VERIFY_TAG_MASK; 4230 fallthrough; 4231 case TCP_V4_FLOW: 4232 case UDP_V4_FLOW: 4233 tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec; 4234 4235 /* IPv4 source address */ 4236 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 4237 new_mask |= I40E_L3_SRC_MASK; 4238 else if (!tcp_ip4_spec->ip4src) 4239 new_mask &= ~I40E_L3_SRC_MASK; 4240 else 4241 return -EOPNOTSUPP; 4242 4243 /* IPv4 destination address */ 4244 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 4245 new_mask |= I40E_L3_DST_MASK; 4246 else if (!tcp_ip4_spec->ip4dst) 4247 new_mask &= ~I40E_L3_DST_MASK; 4248 else 4249 return -EOPNOTSUPP; 4250 4251 /* L4 source port */ 4252 if (tcp_ip4_spec->psrc == htons(0xFFFF)) 4253 new_mask |= I40E_L4_SRC_MASK; 4254 else if (!tcp_ip4_spec->psrc) 4255 new_mask &= ~I40E_L4_SRC_MASK; 4256 else 4257 return -EOPNOTSUPP; 4258 4259 /* L4 destination port */ 4260 if (tcp_ip4_spec->pdst == htons(0xFFFF)) 4261 new_mask |= I40E_L4_DST_MASK; 4262 else if (!tcp_ip4_spec->pdst) 4263 new_mask &= ~I40E_L4_DST_MASK; 4264 else 4265 return -EOPNOTSUPP; 4266 4267 /* Filtering on Type of Service is not supported. */ 4268 if (tcp_ip4_spec->tos) 4269 return -EOPNOTSUPP; 4270 4271 break; 4272 case SCTP_V6_FLOW: 4273 new_mask &= ~I40E_VERIFY_TAG_MASK; 4274 fallthrough; 4275 case TCP_V6_FLOW: 4276 case UDP_V6_FLOW: 4277 tcp_ip6_spec = &fsp->m_u.tcp_ip6_spec; 4278 4279 /* Check if user provided IPv6 source address. */ 4280 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6src, 4281 (struct in6_addr *)&ipv6_full_mask)) 4282 new_mask |= I40E_L3_V6_SRC_MASK; 4283 else if (ipv6_addr_any((struct in6_addr *) 4284 &tcp_ip6_spec->ip6src)) 4285 new_mask &= ~I40E_L3_V6_SRC_MASK; 4286 else 4287 return -EOPNOTSUPP; 4288 4289 /* Check if user provided destination address. */ 4290 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6dst, 4291 (struct in6_addr *)&ipv6_full_mask)) 4292 new_mask |= I40E_L3_V6_DST_MASK; 4293 else if (ipv6_addr_any((struct in6_addr *) 4294 &tcp_ip6_spec->ip6dst)) 4295 new_mask &= ~I40E_L3_V6_DST_MASK; 4296 else 4297 return -EOPNOTSUPP; 4298 4299 /* L4 source port */ 4300 if (tcp_ip6_spec->psrc == htons(0xFFFF)) 4301 new_mask |= I40E_L4_SRC_MASK; 4302 else if (!tcp_ip6_spec->psrc) 4303 new_mask &= ~I40E_L4_SRC_MASK; 4304 else 4305 return -EOPNOTSUPP; 4306 4307 /* L4 destination port */ 4308 if (tcp_ip6_spec->pdst == htons(0xFFFF)) 4309 new_mask |= I40E_L4_DST_MASK; 4310 else if (!tcp_ip6_spec->pdst) 4311 new_mask &= ~I40E_L4_DST_MASK; 4312 else 4313 return -EOPNOTSUPP; 4314 4315 /* Filtering on Traffic Classes is not supported. */ 4316 if (tcp_ip6_spec->tclass) 4317 return -EOPNOTSUPP; 4318 break; 4319 case IP_USER_FLOW: 4320 usr_ip4_spec = &fsp->m_u.usr_ip4_spec; 4321 4322 /* IPv4 source address */ 4323 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 4324 new_mask |= I40E_L3_SRC_MASK; 4325 else if (!usr_ip4_spec->ip4src) 4326 new_mask &= ~I40E_L3_SRC_MASK; 4327 else 4328 return -EOPNOTSUPP; 4329 4330 /* IPv4 destination address */ 4331 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 4332 new_mask |= I40E_L3_DST_MASK; 4333 else if (!usr_ip4_spec->ip4dst) 4334 new_mask &= ~I40E_L3_DST_MASK; 4335 else 4336 return -EOPNOTSUPP; 4337 4338 /* First 4 bytes of L4 header */ 4339 if (usr_ip4_spec->l4_4_bytes == htonl(0xFFFFFFFF)) 4340 new_mask |= I40E_L4_SRC_MASK | I40E_L4_DST_MASK; 4341 else if (!usr_ip4_spec->l4_4_bytes) 4342 new_mask &= ~(I40E_L4_SRC_MASK | I40E_L4_DST_MASK); 4343 else 4344 return -EOPNOTSUPP; 4345 4346 /* Filtering on Type of Service is not supported. */ 4347 if (usr_ip4_spec->tos) 4348 return -EOPNOTSUPP; 4349 4350 /* Filtering on IP version is not supported */ 4351 if (usr_ip4_spec->ip_ver) 4352 return -EINVAL; 4353 4354 /* Filtering on L4 protocol is not supported */ 4355 if (usr_ip4_spec->proto) 4356 return -EINVAL; 4357 4358 break; 4359 case IPV6_USER_FLOW: 4360 usr_ip6_spec = &fsp->m_u.usr_ip6_spec; 4361 4362 /* Check if user provided IPv6 source address. */ 4363 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6src, 4364 (struct in6_addr *)&ipv6_full_mask)) 4365 new_mask |= I40E_L3_V6_SRC_MASK; 4366 else if (ipv6_addr_any((struct in6_addr *) 4367 &usr_ip6_spec->ip6src)) 4368 new_mask &= ~I40E_L3_V6_SRC_MASK; 4369 else 4370 return -EOPNOTSUPP; 4371 4372 /* Check if user provided destination address. */ 4373 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6dst, 4374 (struct in6_addr *)&ipv6_full_mask)) 4375 new_mask |= I40E_L3_V6_DST_MASK; 4376 else if (ipv6_addr_any((struct in6_addr *) 4377 &usr_ip6_spec->ip6src)) 4378 new_mask &= ~I40E_L3_V6_DST_MASK; 4379 else 4380 return -EOPNOTSUPP; 4381 4382 if (usr_ip6_spec->l4_4_bytes == htonl(0xFFFFFFFF)) 4383 new_mask |= I40E_L4_SRC_MASK | I40E_L4_DST_MASK; 4384 else if (!usr_ip6_spec->l4_4_bytes) 4385 new_mask &= ~(I40E_L4_SRC_MASK | I40E_L4_DST_MASK); 4386 else 4387 return -EOPNOTSUPP; 4388 4389 /* Filtering on Traffic class is not supported. */ 4390 if (usr_ip6_spec->tclass) 4391 return -EOPNOTSUPP; 4392 4393 /* Filtering on L4 protocol is not supported */ 4394 if (usr_ip6_spec->l4_proto) 4395 return -EINVAL; 4396 4397 break; 4398 default: 4399 return -EOPNOTSUPP; 4400 } 4401 4402 if (fsp->flow_type & FLOW_EXT) { 4403 /* Allow only 802.1Q and no etype defined, as 4404 * later it's modified to 0x8100 4405 */ 4406 if (fsp->h_ext.vlan_etype != htons(ETH_P_8021Q) && 4407 fsp->h_ext.vlan_etype != 0) 4408 return -EOPNOTSUPP; 4409 if (fsp->m_ext.vlan_tci == htons(0xFFFF)) 4410 new_mask |= I40E_VLAN_SRC_MASK; 4411 else 4412 new_mask &= ~I40E_VLAN_SRC_MASK; 4413 } 4414 4415 /* First, clear all flexible filter entries */ 4416 new_mask &= ~I40E_FLEX_INPUT_MASK; 4417 4418 /* If we have a flexible filter, try to add this offset to the correct 4419 * flexible filter PIT list. Once finished, we can update the mask. 4420 * If the src_offset changed, we will get a new mask value which will 4421 * trigger an input set change. 4422 */ 4423 if (userdef->flex_filter) { 4424 struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL; 4425 4426 /* Flexible offset must be even, since the flexible payload 4427 * must be aligned on 2-byte boundary. 4428 */ 4429 if (userdef->flex_offset & 0x1) { 4430 dev_warn(&pf->pdev->dev, 4431 "Flexible data offset must be 2-byte aligned\n"); 4432 return -EINVAL; 4433 } 4434 4435 src_offset = userdef->flex_offset >> 1; 4436 4437 /* FLX_PIT source offset value is only so large */ 4438 if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) { 4439 dev_warn(&pf->pdev->dev, 4440 "Flexible data must reside within first 64 bytes of the packet payload\n"); 4441 return -EINVAL; 4442 } 4443 4444 /* See if this offset has already been programmed. If we get 4445 * an ERR_PTR, then the filter is not safe to add. Otherwise, 4446 * if we get a NULL pointer, this means we will need to add 4447 * the offset. 4448 */ 4449 flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list, 4450 src_offset); 4451 if (IS_ERR(flex_pit)) 4452 return PTR_ERR(flex_pit); 4453 4454 /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown) 4455 * packet types, and thus we need to program both L3 and L4 4456 * flexible values. These must have identical flexible index, 4457 * as otherwise we can't correctly program the input set. So 4458 * we'll find both an L3 and L4 index and make sure they are 4459 * the same. 4460 */ 4461 if (flex_l3) { 4462 l3_flex_pit = 4463 i40e_find_flex_offset(&pf->l3_flex_pit_list, 4464 src_offset); 4465 if (IS_ERR(l3_flex_pit)) 4466 return PTR_ERR(l3_flex_pit); 4467 4468 if (flex_pit) { 4469 /* If we already had a matching L4 entry, we 4470 * need to make sure that the L3 entry we 4471 * obtained uses the same index. 4472 */ 4473 if (l3_flex_pit) { 4474 if (l3_flex_pit->pit_index != 4475 flex_pit->pit_index) { 4476 return -EINVAL; 4477 } 4478 } else { 4479 new_flex_offset = true; 4480 } 4481 } else { 4482 flex_pit = l3_flex_pit; 4483 } 4484 } 4485 4486 /* If we didn't find an existing flex offset, we need to 4487 * program a new one. However, we don't immediately program it 4488 * here because we will wait to program until after we check 4489 * that it is safe to change the input set. 4490 */ 4491 if (!flex_pit) { 4492 new_flex_offset = true; 4493 pit_index = i40e_unused_pit_index(pf); 4494 } else { 4495 pit_index = flex_pit->pit_index; 4496 } 4497 4498 /* Update the mask with the new offset */ 4499 new_mask |= i40e_pit_index_to_mask(pit_index); 4500 } 4501 4502 /* If the mask and flexible filter offsets for this filter match the 4503 * currently programmed values we don't need any input set change, so 4504 * this filter is safe to install. 4505 */ 4506 if (new_mask == current_mask && !new_flex_offset) 4507 return 0; 4508 4509 netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n", 4510 i40e_flow_str(fsp)); 4511 i40e_print_input_set(vsi, current_mask, new_mask); 4512 if (new_flex_offset) { 4513 netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d", 4514 pit_index, src_offset); 4515 } 4516 4517 /* Hardware input sets are global across multiple ports, so even the 4518 * main port cannot change them when in MFP mode as this would impact 4519 * any filters on the other ports. 4520 */ 4521 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 4522 netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n"); 4523 return -EOPNOTSUPP; 4524 } 4525 4526 /* This filter requires us to update the input set. However, hardware 4527 * only supports one input set per flow type, and does not support 4528 * separate masks for each filter. This means that we can only support 4529 * a single mask for all filters of a specific type. 4530 * 4531 * If we have preexisting filters, they obviously depend on the 4532 * current programmed input set. Display a diagnostic message in this 4533 * case explaining why the filter could not be accepted. 4534 */ 4535 if (*fdir_filter_count) { 4536 netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n", 4537 i40e_flow_str(fsp), 4538 *fdir_filter_count); 4539 return -EOPNOTSUPP; 4540 } 4541 4542 i40e_write_fd_input_set(pf, index, new_mask); 4543 4544 /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented 4545 * frames. If we're programming the input set for IPv4/Other, we also 4546 * need to program the IPv4/Fragmented input set. Since we don't have 4547 * separate support, we'll always assume and enforce that the two flow 4548 * types must have matching input sets. 4549 */ 4550 if (index == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) 4551 i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4, 4552 new_mask); 4553 4554 /* Add the new offset and update table, if necessary */ 4555 if (new_flex_offset) { 4556 err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset, 4557 pit_index); 4558 if (err) 4559 return err; 4560 4561 if (flex_l3) { 4562 err = i40e_add_flex_offset(&pf->l3_flex_pit_list, 4563 src_offset, 4564 pit_index); 4565 if (err) 4566 return err; 4567 } 4568 4569 i40e_reprogram_flex_pit(pf); 4570 } 4571 4572 return 0; 4573 } 4574 4575 /** 4576 * i40e_match_fdir_filter - Return true of two filters match 4577 * @a: pointer to filter struct 4578 * @b: pointer to filter struct 4579 * 4580 * Returns true if the two filters match exactly the same criteria. I.e. they 4581 * match the same flow type and have the same parameters. We don't need to 4582 * check any input-set since all filters of the same flow type must use the 4583 * same input set. 4584 **/ 4585 static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a, 4586 struct i40e_fdir_filter *b) 4587 { 4588 /* The filters do not much if any of these criteria differ. */ 4589 if (a->dst_ip != b->dst_ip || 4590 a->src_ip != b->src_ip || 4591 a->dst_port != b->dst_port || 4592 a->src_port != b->src_port || 4593 a->flow_type != b->flow_type || 4594 a->ipl4_proto != b->ipl4_proto || 4595 a->vlan_tag != b->vlan_tag || 4596 a->vlan_etype != b->vlan_etype) 4597 return false; 4598 4599 return true; 4600 } 4601 4602 /** 4603 * i40e_disallow_matching_filters - Check that new filters differ 4604 * @vsi: pointer to the targeted VSI 4605 * @input: new filter to check 4606 * 4607 * Due to hardware limitations, it is not possible for two filters that match 4608 * similar criteria to be programmed at the same time. This is true for a few 4609 * reasons: 4610 * 4611 * (a) all filters matching a particular flow type must use the same input 4612 * set, that is they must match the same criteria. 4613 * (b) different flow types will never match the same packet, as the flow type 4614 * is decided by hardware before checking which rules apply. 4615 * (c) hardware has no way to distinguish which order filters apply in. 4616 * 4617 * Due to this, we can't really support using the location data to order 4618 * filters in the hardware parsing. It is technically possible for the user to 4619 * request two filters matching the same criteria but which select different 4620 * queues. In this case, rather than keep both filters in the list, we reject 4621 * the 2nd filter when the user requests adding it. 4622 * 4623 * This avoids needing to track location for programming the filter to 4624 * hardware, and ensures that we avoid some strange scenarios involving 4625 * deleting filters which match the same criteria. 4626 **/ 4627 static int i40e_disallow_matching_filters(struct i40e_vsi *vsi, 4628 struct i40e_fdir_filter *input) 4629 { 4630 struct i40e_pf *pf = vsi->back; 4631 struct i40e_fdir_filter *rule; 4632 struct hlist_node *node2; 4633 4634 /* Loop through every filter, and check that it doesn't match */ 4635 hlist_for_each_entry_safe(rule, node2, 4636 &pf->fdir_filter_list, fdir_node) { 4637 /* Don't check the filters match if they share the same fd_id, 4638 * since the new filter is actually just updating the target 4639 * of the old filter. 4640 */ 4641 if (rule->fd_id == input->fd_id) 4642 continue; 4643 4644 /* If any filters match, then print a warning message to the 4645 * kernel message buffer and bail out. 4646 */ 4647 if (i40e_match_fdir_filter(rule, input)) { 4648 dev_warn(&pf->pdev->dev, 4649 "Existing user defined filter %d already matches this flow.\n", 4650 rule->fd_id); 4651 return -EINVAL; 4652 } 4653 } 4654 4655 return 0; 4656 } 4657 4658 /** 4659 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters 4660 * @vsi: pointer to the targeted VSI 4661 * @cmd: command to get or set RX flow classification rules 4662 * 4663 * Add Flow Director filters for a specific flow spec based on their 4664 * protocol. Returns 0 if the filters were successfully added. 4665 **/ 4666 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi, 4667 struct ethtool_rxnfc *cmd) 4668 { 4669 struct i40e_rx_flow_userdef userdef; 4670 struct ethtool_rx_flow_spec *fsp; 4671 struct i40e_fdir_filter *input; 4672 u16 dest_vsi = 0, q_index = 0; 4673 struct i40e_pf *pf; 4674 int ret = -EINVAL; 4675 u8 dest_ctl; 4676 4677 if (!vsi) 4678 return -EINVAL; 4679 pf = vsi->back; 4680 4681 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED)) 4682 return -EOPNOTSUPP; 4683 4684 if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state)) 4685 return -ENOSPC; 4686 4687 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 4688 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 4689 return -EBUSY; 4690 4691 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 4692 return -EBUSY; 4693 4694 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs; 4695 4696 /* Parse the user-defined field */ 4697 if (i40e_parse_rx_flow_user_data(fsp, &userdef)) 4698 return -EINVAL; 4699 4700 /* Extended MAC field is not supported */ 4701 if (fsp->flow_type & FLOW_MAC_EXT) 4702 return -EINVAL; 4703 4704 ret = i40e_check_fdir_input_set(vsi, fsp, &userdef); 4705 if (ret) 4706 return ret; 4707 4708 if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort + 4709 pf->hw.func_caps.fd_filters_guaranteed)) { 4710 return -EINVAL; 4711 } 4712 4713 /* ring_cookie is either the drop index, or is a mask of the queue 4714 * index and VF id we wish to target. 4715 */ 4716 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) { 4717 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 4718 } else { 4719 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie); 4720 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie); 4721 4722 if (!vf) { 4723 if (ring >= vsi->num_queue_pairs) 4724 return -EINVAL; 4725 dest_vsi = vsi->id; 4726 } else { 4727 /* VFs are zero-indexed, so we subtract one here */ 4728 vf--; 4729 4730 if (vf >= pf->num_alloc_vfs) 4731 return -EINVAL; 4732 if (ring >= pf->vf[vf].num_queue_pairs) 4733 return -EINVAL; 4734 dest_vsi = pf->vf[vf].lan_vsi_id; 4735 } 4736 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX; 4737 q_index = ring; 4738 } 4739 4740 input = kzalloc(sizeof(*input), GFP_KERNEL); 4741 4742 if (!input) 4743 return -ENOMEM; 4744 4745 input->fd_id = fsp->location; 4746 input->q_index = q_index; 4747 input->dest_vsi = dest_vsi; 4748 input->dest_ctl = dest_ctl; 4749 input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID; 4750 input->cnt_index = I40E_FD_SB_STAT_IDX(pf->hw.pf_id); 4751 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4752 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4753 input->flow_type = fsp->flow_type & ~FLOW_EXT; 4754 4755 input->vlan_etype = fsp->h_ext.vlan_etype; 4756 if (!fsp->m_ext.vlan_etype && fsp->h_ext.vlan_tci) 4757 input->vlan_etype = cpu_to_be16(ETH_P_8021Q); 4758 if (fsp->m_ext.vlan_tci && input->vlan_etype) 4759 input->vlan_tag = fsp->h_ext.vlan_tci; 4760 if (input->flow_type == IPV6_USER_FLOW || 4761 input->flow_type == UDP_V6_FLOW || 4762 input->flow_type == TCP_V6_FLOW || 4763 input->flow_type == SCTP_V6_FLOW) { 4764 /* Reverse the src and dest notion, since the HW expects them 4765 * to be from Tx perspective where as the input from user is 4766 * from Rx filter view. 4767 */ 4768 input->ipl4_proto = fsp->h_u.usr_ip6_spec.l4_proto; 4769 input->dst_port = fsp->h_u.tcp_ip6_spec.psrc; 4770 input->src_port = fsp->h_u.tcp_ip6_spec.pdst; 4771 memcpy(input->dst_ip6, fsp->h_u.ah_ip6_spec.ip6src, 4772 sizeof(__be32) * 4); 4773 memcpy(input->src_ip6, fsp->h_u.ah_ip6_spec.ip6dst, 4774 sizeof(__be32) * 4); 4775 } else { 4776 /* Reverse the src and dest notion, since the HW expects them 4777 * to be from Tx perspective where as the input from user is 4778 * from Rx filter view. 4779 */ 4780 input->ipl4_proto = fsp->h_u.usr_ip4_spec.proto; 4781 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc; 4782 input->src_port = fsp->h_u.tcp_ip4_spec.pdst; 4783 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4784 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4785 } 4786 4787 if (userdef.flex_filter) { 4788 input->flex_filter = true; 4789 input->flex_word = cpu_to_be16(userdef.flex_word); 4790 input->flex_offset = userdef.flex_offset; 4791 } 4792 4793 /* Avoid programming two filters with identical match criteria. */ 4794 ret = i40e_disallow_matching_filters(vsi, input); 4795 if (ret) 4796 goto free_filter_memory; 4797 4798 /* Add the input filter to the fdir_input_list, possibly replacing 4799 * a previous filter. Do not free the input structure after adding it 4800 * to the list as this would cause a use-after-free bug. 4801 */ 4802 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL); 4803 ret = i40e_add_del_fdir(vsi, input, true); 4804 if (ret) 4805 goto remove_sw_rule; 4806 return 0; 4807 4808 remove_sw_rule: 4809 hlist_del(&input->fdir_node); 4810 pf->fdir_pf_active_filters--; 4811 free_filter_memory: 4812 kfree(input); 4813 return ret; 4814 } 4815 4816 /** 4817 * i40e_set_rxnfc - command to set RX flow classification rules 4818 * @netdev: network interface device structure 4819 * @cmd: ethtool rxnfc command 4820 * 4821 * Returns Success if the command is supported. 4822 **/ 4823 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd) 4824 { 4825 struct i40e_netdev_priv *np = netdev_priv(netdev); 4826 struct i40e_vsi *vsi = np->vsi; 4827 struct i40e_pf *pf = vsi->back; 4828 int ret = -EOPNOTSUPP; 4829 4830 switch (cmd->cmd) { 4831 case ETHTOOL_SRXFH: 4832 ret = i40e_set_rss_hash_opt(pf, cmd); 4833 break; 4834 case ETHTOOL_SRXCLSRLINS: 4835 ret = i40e_add_fdir_ethtool(vsi, cmd); 4836 break; 4837 case ETHTOOL_SRXCLSRLDEL: 4838 ret = i40e_del_fdir_entry(vsi, cmd); 4839 break; 4840 default: 4841 break; 4842 } 4843 4844 return ret; 4845 } 4846 4847 /** 4848 * i40e_max_channels - get Max number of combined channels supported 4849 * @vsi: vsi pointer 4850 **/ 4851 static unsigned int i40e_max_channels(struct i40e_vsi *vsi) 4852 { 4853 /* TODO: This code assumes DCB and FD is disabled for now. */ 4854 return vsi->alloc_queue_pairs; 4855 } 4856 4857 /** 4858 * i40e_get_channels - Get the current channels enabled and max supported etc. 4859 * @dev: network interface device structure 4860 * @ch: ethtool channels structure 4861 * 4862 * We don't support separate tx and rx queues as channels. The other count 4863 * represents how many queues are being used for control. max_combined counts 4864 * how many queue pairs we can support. They may not be mapped 1 to 1 with 4865 * q_vectors since we support a lot more queue pairs than q_vectors. 4866 **/ 4867 static void i40e_get_channels(struct net_device *dev, 4868 struct ethtool_channels *ch) 4869 { 4870 struct i40e_netdev_priv *np = netdev_priv(dev); 4871 struct i40e_vsi *vsi = np->vsi; 4872 struct i40e_pf *pf = vsi->back; 4873 4874 /* report maximum channels */ 4875 ch->max_combined = i40e_max_channels(vsi); 4876 4877 /* report info for other vector */ 4878 ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0; 4879 ch->max_other = ch->other_count; 4880 4881 /* Note: This code assumes DCB is disabled for now. */ 4882 ch->combined_count = vsi->num_queue_pairs; 4883 } 4884 4885 /** 4886 * i40e_set_channels - Set the new channels count. 4887 * @dev: network interface device structure 4888 * @ch: ethtool channels structure 4889 * 4890 * The new channels count may not be the same as requested by the user 4891 * since it gets rounded down to a power of 2 value. 4892 **/ 4893 static int i40e_set_channels(struct net_device *dev, 4894 struct ethtool_channels *ch) 4895 { 4896 const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 4897 struct i40e_netdev_priv *np = netdev_priv(dev); 4898 unsigned int count = ch->combined_count; 4899 struct i40e_vsi *vsi = np->vsi; 4900 struct i40e_pf *pf = vsi->back; 4901 struct i40e_fdir_filter *rule; 4902 struct hlist_node *node2; 4903 int new_count; 4904 int err = 0; 4905 4906 /* We do not support setting channels for any other VSI at present */ 4907 if (vsi->type != I40E_VSI_MAIN) 4908 return -EINVAL; 4909 4910 /* We do not support setting channels via ethtool when TCs are 4911 * configured through mqprio 4912 */ 4913 if (pf->flags & I40E_FLAG_TC_MQPRIO) 4914 return -EINVAL; 4915 4916 /* verify they are not requesting separate vectors */ 4917 if (!count || ch->rx_count || ch->tx_count) 4918 return -EINVAL; 4919 4920 /* verify other_count has not changed */ 4921 if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0)) 4922 return -EINVAL; 4923 4924 /* verify the number of channels does not exceed hardware limits */ 4925 if (count > i40e_max_channels(vsi)) 4926 return -EINVAL; 4927 4928 /* verify that the number of channels does not invalidate any current 4929 * flow director rules 4930 */ 4931 hlist_for_each_entry_safe(rule, node2, 4932 &pf->fdir_filter_list, fdir_node) { 4933 if (rule->dest_ctl != drop && count <= rule->q_index) { 4934 dev_warn(&pf->pdev->dev, 4935 "Existing user defined filter %d assigns flow to queue %d\n", 4936 rule->fd_id, rule->q_index); 4937 err = -EINVAL; 4938 } 4939 } 4940 4941 if (err) { 4942 dev_err(&pf->pdev->dev, 4943 "Existing filter rules must be deleted to reduce combined channel count to %d\n", 4944 count); 4945 return err; 4946 } 4947 4948 /* update feature limits from largest to smallest supported values */ 4949 /* TODO: Flow director limit, DCB etc */ 4950 4951 /* use rss_reconfig to rebuild with new queue count and update traffic 4952 * class queue mapping 4953 */ 4954 new_count = i40e_reconfig_rss_queues(pf, count); 4955 if (new_count > 0) 4956 return 0; 4957 else 4958 return -EINVAL; 4959 } 4960 4961 /** 4962 * i40e_get_rxfh_key_size - get the RSS hash key size 4963 * @netdev: network interface device structure 4964 * 4965 * Returns the table size. 4966 **/ 4967 static u32 i40e_get_rxfh_key_size(struct net_device *netdev) 4968 { 4969 return I40E_HKEY_ARRAY_SIZE; 4970 } 4971 4972 /** 4973 * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size 4974 * @netdev: network interface device structure 4975 * 4976 * Returns the table size. 4977 **/ 4978 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev) 4979 { 4980 return I40E_HLUT_ARRAY_SIZE; 4981 } 4982 4983 /** 4984 * i40e_get_rxfh - get the rx flow hash indirection table 4985 * @netdev: network interface device structure 4986 * @indir: indirection table 4987 * @key: hash key 4988 * @hfunc: hash function 4989 * 4990 * Reads the indirection table directly from the hardware. Returns 0 on 4991 * success. 4992 **/ 4993 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 4994 u8 *hfunc) 4995 { 4996 struct i40e_netdev_priv *np = netdev_priv(netdev); 4997 struct i40e_vsi *vsi = np->vsi; 4998 u8 *lut, *seed = NULL; 4999 int ret; 5000 u16 i; 5001 5002 if (hfunc) 5003 *hfunc = ETH_RSS_HASH_TOP; 5004 5005 if (!indir) 5006 return 0; 5007 5008 seed = key; 5009 lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 5010 if (!lut) 5011 return -ENOMEM; 5012 ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE); 5013 if (ret) 5014 goto out; 5015 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 5016 indir[i] = (u32)(lut[i]); 5017 5018 out: 5019 kfree(lut); 5020 5021 return ret; 5022 } 5023 5024 /** 5025 * i40e_set_rxfh - set the rx flow hash indirection table 5026 * @netdev: network interface device structure 5027 * @indir: indirection table 5028 * @key: hash key 5029 * @hfunc: hash function to use 5030 * 5031 * Returns -EINVAL if the table specifies an invalid queue id, otherwise 5032 * returns 0 after programming the table. 5033 **/ 5034 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir, 5035 const u8 *key, const u8 hfunc) 5036 { 5037 struct i40e_netdev_priv *np = netdev_priv(netdev); 5038 struct i40e_vsi *vsi = np->vsi; 5039 struct i40e_pf *pf = vsi->back; 5040 u8 *seed = NULL; 5041 u16 i; 5042 5043 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) 5044 return -EOPNOTSUPP; 5045 5046 if (key) { 5047 if (!vsi->rss_hkey_user) { 5048 vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE, 5049 GFP_KERNEL); 5050 if (!vsi->rss_hkey_user) 5051 return -ENOMEM; 5052 } 5053 memcpy(vsi->rss_hkey_user, key, I40E_HKEY_ARRAY_SIZE); 5054 seed = vsi->rss_hkey_user; 5055 } 5056 if (!vsi->rss_lut_user) { 5057 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 5058 if (!vsi->rss_lut_user) 5059 return -ENOMEM; 5060 } 5061 5062 /* Each 32 bits pointed by 'indir' is stored with a lut entry */ 5063 if (indir) 5064 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 5065 vsi->rss_lut_user[i] = (u8)(indir[i]); 5066 else 5067 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE, 5068 vsi->rss_size); 5069 5070 return i40e_config_rss(vsi, seed, vsi->rss_lut_user, 5071 I40E_HLUT_ARRAY_SIZE); 5072 } 5073 5074 /** 5075 * i40e_get_priv_flags - report device private flags 5076 * @dev: network interface device structure 5077 * 5078 * The get string set count and the string set should be matched for each 5079 * flag returned. Add new strings for each flag to the i40e_gstrings_priv_flags 5080 * array. 5081 * 5082 * Returns a u32 bitmap of flags. 5083 **/ 5084 static u32 i40e_get_priv_flags(struct net_device *dev) 5085 { 5086 struct i40e_netdev_priv *np = netdev_priv(dev); 5087 struct i40e_vsi *vsi = np->vsi; 5088 struct i40e_pf *pf = vsi->back; 5089 u32 i, j, ret_flags = 0; 5090 5091 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 5092 const struct i40e_priv_flags *priv_flags; 5093 5094 priv_flags = &i40e_gstrings_priv_flags[i]; 5095 5096 if (priv_flags->flag & pf->flags) 5097 ret_flags |= BIT(i); 5098 } 5099 5100 if (pf->hw.pf_id != 0) 5101 return ret_flags; 5102 5103 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 5104 const struct i40e_priv_flags *priv_flags; 5105 5106 priv_flags = &i40e_gl_gstrings_priv_flags[j]; 5107 5108 if (priv_flags->flag & pf->flags) 5109 ret_flags |= BIT(i + j); 5110 } 5111 5112 return ret_flags; 5113 } 5114 5115 /** 5116 * i40e_set_priv_flags - set private flags 5117 * @dev: network interface device structure 5118 * @flags: bit flags to be set 5119 **/ 5120 static int i40e_set_priv_flags(struct net_device *dev, u32 flags) 5121 { 5122 struct i40e_netdev_priv *np = netdev_priv(dev); 5123 u64 orig_flags, new_flags, changed_flags; 5124 enum i40e_admin_queue_err adq_err; 5125 struct i40e_vsi *vsi = np->vsi; 5126 struct i40e_pf *pf = vsi->back; 5127 u32 reset_needed = 0; 5128 i40e_status status; 5129 u32 i, j; 5130 5131 orig_flags = READ_ONCE(pf->flags); 5132 new_flags = orig_flags; 5133 5134 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 5135 const struct i40e_priv_flags *priv_flags; 5136 5137 priv_flags = &i40e_gstrings_priv_flags[i]; 5138 5139 if (flags & BIT(i)) 5140 new_flags |= priv_flags->flag; 5141 else 5142 new_flags &= ~(priv_flags->flag); 5143 5144 /* If this is a read-only flag, it can't be changed */ 5145 if (priv_flags->read_only && 5146 ((orig_flags ^ new_flags) & ~BIT(i))) 5147 return -EOPNOTSUPP; 5148 } 5149 5150 if (pf->hw.pf_id != 0) 5151 goto flags_complete; 5152 5153 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 5154 const struct i40e_priv_flags *priv_flags; 5155 5156 priv_flags = &i40e_gl_gstrings_priv_flags[j]; 5157 5158 if (flags & BIT(i + j)) 5159 new_flags |= priv_flags->flag; 5160 else 5161 new_flags &= ~(priv_flags->flag); 5162 5163 /* If this is a read-only flag, it can't be changed */ 5164 if (priv_flags->read_only && 5165 ((orig_flags ^ new_flags) & ~BIT(i))) 5166 return -EOPNOTSUPP; 5167 } 5168 5169 flags_complete: 5170 changed_flags = orig_flags ^ new_flags; 5171 5172 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) 5173 reset_needed = I40E_PF_RESET_AND_REBUILD_FLAG; 5174 if (changed_flags & (I40E_FLAG_VEB_STATS_ENABLED | 5175 I40E_FLAG_LEGACY_RX | I40E_FLAG_SOURCE_PRUNING_DISABLED)) 5176 reset_needed = BIT(__I40E_PF_RESET_REQUESTED); 5177 5178 /* Before we finalize any flag changes, we need to perform some 5179 * checks to ensure that the changes are supported and safe. 5180 */ 5181 5182 /* ATR eviction is not supported on all devices */ 5183 if ((new_flags & I40E_FLAG_HW_ATR_EVICT_ENABLED) && 5184 !(pf->hw_features & I40E_HW_ATR_EVICT_CAPABLE)) 5185 return -EOPNOTSUPP; 5186 5187 /* If the driver detected FW LLDP was disabled on init, this flag could 5188 * be set, however we do not support _changing_ the flag: 5189 * - on XL710 if NPAR is enabled or FW API version < 1.7 5190 * - on X722 with FW API version < 1.6 5191 * There are situations where older FW versions/NPAR enabled PFs could 5192 * disable LLDP, however we _must_ not allow the user to enable/disable 5193 * LLDP with this flag on unsupported FW versions. 5194 */ 5195 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) { 5196 if (!(pf->hw.flags & I40E_HW_FLAG_FW_LLDP_STOPPABLE)) { 5197 dev_warn(&pf->pdev->dev, 5198 "Device does not support changing FW LLDP\n"); 5199 return -EOPNOTSUPP; 5200 } 5201 } 5202 5203 if (changed_flags & I40E_FLAG_RS_FEC && 5204 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && 5205 pf->hw.device_id != I40E_DEV_ID_25G_B) { 5206 dev_warn(&pf->pdev->dev, 5207 "Device does not support changing FEC configuration\n"); 5208 return -EOPNOTSUPP; 5209 } 5210 5211 if (changed_flags & I40E_FLAG_BASE_R_FEC && 5212 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && 5213 pf->hw.device_id != I40E_DEV_ID_25G_B && 5214 pf->hw.device_id != I40E_DEV_ID_KX_X722) { 5215 dev_warn(&pf->pdev->dev, 5216 "Device does not support changing FEC configuration\n"); 5217 return -EOPNOTSUPP; 5218 } 5219 5220 /* Process any additional changes needed as a result of flag changes. 5221 * The changed_flags value reflects the list of bits that were 5222 * changed in the code above. 5223 */ 5224 5225 /* Flush current ATR settings if ATR was disabled */ 5226 if ((changed_flags & I40E_FLAG_FD_ATR_ENABLED) && 5227 !(new_flags & I40E_FLAG_FD_ATR_ENABLED)) { 5228 set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state); 5229 set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state); 5230 } 5231 5232 if (changed_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT) { 5233 u16 sw_flags = 0, valid_flags = 0; 5234 int ret; 5235 5236 if (!(new_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT)) 5237 sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 5238 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 5239 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags, 5240 0, NULL); 5241 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) { 5242 dev_info(&pf->pdev->dev, 5243 "couldn't set switch config bits, err %s aq_err %s\n", 5244 i40e_stat_str(&pf->hw, ret), 5245 i40e_aq_str(&pf->hw, 5246 pf->hw.aq.asq_last_status)); 5247 /* not a fatal problem, just keep going */ 5248 } 5249 } 5250 5251 if ((changed_flags & I40E_FLAG_RS_FEC) || 5252 (changed_flags & I40E_FLAG_BASE_R_FEC)) { 5253 u8 fec_cfg = 0; 5254 5255 if (new_flags & I40E_FLAG_RS_FEC && 5256 new_flags & I40E_FLAG_BASE_R_FEC) { 5257 fec_cfg = I40E_AQ_SET_FEC_AUTO; 5258 } else if (new_flags & I40E_FLAG_RS_FEC) { 5259 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS | 5260 I40E_AQ_SET_FEC_ABILITY_RS); 5261 } else if (new_flags & I40E_FLAG_BASE_R_FEC) { 5262 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR | 5263 I40E_AQ_SET_FEC_ABILITY_KR); 5264 } 5265 if (i40e_set_fec_cfg(dev, fec_cfg)) 5266 dev_warn(&pf->pdev->dev, "Cannot change FEC config\n"); 5267 } 5268 5269 if ((changed_flags & I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) && 5270 (orig_flags & I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED)) { 5271 dev_err(&pf->pdev->dev, 5272 "Setting link-down-on-close not supported on this port (because total-port-shutdown is enabled)\n"); 5273 return -EOPNOTSUPP; 5274 } 5275 5276 if ((changed_flags & new_flags & 5277 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) && 5278 (new_flags & I40E_FLAG_MFP_ENABLED)) 5279 dev_warn(&pf->pdev->dev, 5280 "Turning on link-down-on-close flag may affect other partitions\n"); 5281 5282 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) { 5283 if (new_flags & I40E_FLAG_DISABLE_FW_LLDP) { 5284 #ifdef CONFIG_I40E_DCB 5285 i40e_dcb_sw_default_config(pf); 5286 #endif /* CONFIG_I40E_DCB */ 5287 i40e_aq_cfg_lldp_mib_change_event(&pf->hw, false, NULL); 5288 i40e_aq_stop_lldp(&pf->hw, true, false, NULL); 5289 } else { 5290 i40e_set_lldp_forwarding(pf, false); 5291 status = i40e_aq_start_lldp(&pf->hw, false, NULL); 5292 if (status) { 5293 adq_err = pf->hw.aq.asq_last_status; 5294 switch (adq_err) { 5295 case I40E_AQ_RC_EEXIST: 5296 dev_warn(&pf->pdev->dev, 5297 "FW LLDP agent is already running\n"); 5298 reset_needed = 0; 5299 break; 5300 case I40E_AQ_RC_EPERM: 5301 dev_warn(&pf->pdev->dev, 5302 "Device configuration forbids SW from starting the LLDP agent.\n"); 5303 return -EINVAL; 5304 default: 5305 dev_warn(&pf->pdev->dev, 5306 "Starting FW LLDP agent failed: error: %s, %s\n", 5307 i40e_stat_str(&pf->hw, 5308 status), 5309 i40e_aq_str(&pf->hw, 5310 adq_err)); 5311 return -EINVAL; 5312 } 5313 } 5314 } 5315 } 5316 5317 /* Now that we've checked to ensure that the new flags are valid, load 5318 * them into place. Since we only modify flags either (a) during 5319 * initialization or (b) while holding the RTNL lock, we don't need 5320 * anything fancy here. 5321 */ 5322 pf->flags = new_flags; 5323 5324 /* Issue reset to cause things to take effect, as additional bits 5325 * are added we will need to create a mask of bits requiring reset 5326 */ 5327 if (reset_needed) 5328 i40e_do_reset(pf, reset_needed, true); 5329 5330 return 0; 5331 } 5332 5333 /** 5334 * i40e_get_module_info - get (Q)SFP+ module type info 5335 * @netdev: network interface device structure 5336 * @modinfo: module EEPROM size and layout information structure 5337 **/ 5338 static int i40e_get_module_info(struct net_device *netdev, 5339 struct ethtool_modinfo *modinfo) 5340 { 5341 struct i40e_netdev_priv *np = netdev_priv(netdev); 5342 struct i40e_vsi *vsi = np->vsi; 5343 struct i40e_pf *pf = vsi->back; 5344 struct i40e_hw *hw = &pf->hw; 5345 u32 sff8472_comp = 0; 5346 u32 sff8472_swap = 0; 5347 u32 sff8636_rev = 0; 5348 i40e_status status; 5349 u32 type = 0; 5350 5351 /* Check if firmware supports reading module EEPROM. */ 5352 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) { 5353 netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n"); 5354 return -EINVAL; 5355 } 5356 5357 status = i40e_update_link_info(hw); 5358 if (status) 5359 return -EIO; 5360 5361 if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) { 5362 netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n"); 5363 return -EINVAL; 5364 } 5365 5366 type = hw->phy.link_info.module_type[0]; 5367 5368 switch (type) { 5369 case I40E_MODULE_TYPE_SFP: 5370 status = i40e_aq_get_phy_register(hw, 5371 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5372 I40E_I2C_EEPROM_DEV_ADDR, true, 5373 I40E_MODULE_SFF_8472_COMP, 5374 &sff8472_comp, NULL); 5375 if (status) 5376 return -EIO; 5377 5378 status = i40e_aq_get_phy_register(hw, 5379 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5380 I40E_I2C_EEPROM_DEV_ADDR, true, 5381 I40E_MODULE_SFF_8472_SWAP, 5382 &sff8472_swap, NULL); 5383 if (status) 5384 return -EIO; 5385 5386 /* Check if the module requires address swap to access 5387 * the other EEPROM memory page. 5388 */ 5389 if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) { 5390 netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n"); 5391 modinfo->type = ETH_MODULE_SFF_8079; 5392 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5393 } else if (sff8472_comp == 0x00) { 5394 /* Module is not SFF-8472 compliant */ 5395 modinfo->type = ETH_MODULE_SFF_8079; 5396 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5397 } else if (!(sff8472_swap & I40E_MODULE_SFF_DDM_IMPLEMENTED)) { 5398 /* Module is SFF-8472 compliant but doesn't implement 5399 * Digital Diagnostic Monitoring (DDM). 5400 */ 5401 modinfo->type = ETH_MODULE_SFF_8079; 5402 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5403 } else { 5404 modinfo->type = ETH_MODULE_SFF_8472; 5405 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; 5406 } 5407 break; 5408 case I40E_MODULE_TYPE_QSFP_PLUS: 5409 /* Read from memory page 0. */ 5410 status = i40e_aq_get_phy_register(hw, 5411 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5412 0, true, 5413 I40E_MODULE_REVISION_ADDR, 5414 &sff8636_rev, NULL); 5415 if (status) 5416 return -EIO; 5417 /* Determine revision compliance byte */ 5418 if (sff8636_rev > 0x02) { 5419 /* Module is SFF-8636 compliant */ 5420 modinfo->type = ETH_MODULE_SFF_8636; 5421 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5422 } else { 5423 modinfo->type = ETH_MODULE_SFF_8436; 5424 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5425 } 5426 break; 5427 case I40E_MODULE_TYPE_QSFP28: 5428 modinfo->type = ETH_MODULE_SFF_8636; 5429 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5430 break; 5431 default: 5432 netdev_err(vsi->netdev, "Module type unrecognized\n"); 5433 return -EINVAL; 5434 } 5435 return 0; 5436 } 5437 5438 /** 5439 * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents 5440 * @netdev: network interface device structure 5441 * @ee: EEPROM dump request structure 5442 * @data: buffer to be filled with EEPROM contents 5443 **/ 5444 static int i40e_get_module_eeprom(struct net_device *netdev, 5445 struct ethtool_eeprom *ee, 5446 u8 *data) 5447 { 5448 struct i40e_netdev_priv *np = netdev_priv(netdev); 5449 struct i40e_vsi *vsi = np->vsi; 5450 struct i40e_pf *pf = vsi->back; 5451 struct i40e_hw *hw = &pf->hw; 5452 bool is_sfp = false; 5453 i40e_status status; 5454 u32 value = 0; 5455 int i; 5456 5457 if (!ee || !ee->len || !data) 5458 return -EINVAL; 5459 5460 if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP) 5461 is_sfp = true; 5462 5463 for (i = 0; i < ee->len; i++) { 5464 u32 offset = i + ee->offset; 5465 u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0; 5466 5467 /* Check if we need to access the other memory page */ 5468 if (is_sfp) { 5469 if (offset >= ETH_MODULE_SFF_8079_LEN) { 5470 offset -= ETH_MODULE_SFF_8079_LEN; 5471 addr = I40E_I2C_EEPROM_DEV_ADDR2; 5472 } 5473 } else { 5474 while (offset >= ETH_MODULE_SFF_8436_LEN) { 5475 /* Compute memory page number and offset. */ 5476 offset -= ETH_MODULE_SFF_8436_LEN / 2; 5477 addr++; 5478 } 5479 } 5480 5481 status = i40e_aq_get_phy_register(hw, 5482 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5483 addr, true, offset, &value, NULL); 5484 if (status) 5485 return -EIO; 5486 data[i] = value; 5487 } 5488 return 0; 5489 } 5490 5491 static int i40e_get_eee(struct net_device *netdev, struct ethtool_eee *edata) 5492 { 5493 struct i40e_netdev_priv *np = netdev_priv(netdev); 5494 struct i40e_aq_get_phy_abilities_resp phy_cfg; 5495 enum i40e_status_code status = 0; 5496 struct i40e_vsi *vsi = np->vsi; 5497 struct i40e_pf *pf = vsi->back; 5498 struct i40e_hw *hw = &pf->hw; 5499 5500 /* Get initial PHY capabilities */ 5501 status = i40e_aq_get_phy_capabilities(hw, false, true, &phy_cfg, NULL); 5502 if (status) 5503 return -EAGAIN; 5504 5505 /* Check whether NIC configuration is compatible with Energy Efficient 5506 * Ethernet (EEE) mode. 5507 */ 5508 if (phy_cfg.eee_capability == 0) 5509 return -EOPNOTSUPP; 5510 5511 edata->supported = SUPPORTED_Autoneg; 5512 edata->lp_advertised = edata->supported; 5513 5514 /* Get current configuration */ 5515 status = i40e_aq_get_phy_capabilities(hw, false, false, &phy_cfg, NULL); 5516 if (status) 5517 return -EAGAIN; 5518 5519 edata->advertised = phy_cfg.eee_capability ? SUPPORTED_Autoneg : 0U; 5520 edata->eee_enabled = !!edata->advertised; 5521 edata->tx_lpi_enabled = pf->stats.tx_lpi_status; 5522 5523 edata->eee_active = pf->stats.tx_lpi_status && pf->stats.rx_lpi_status; 5524 5525 return 0; 5526 } 5527 5528 static int i40e_is_eee_param_supported(struct net_device *netdev, 5529 struct ethtool_eee *edata) 5530 { 5531 struct i40e_netdev_priv *np = netdev_priv(netdev); 5532 struct i40e_vsi *vsi = np->vsi; 5533 struct i40e_pf *pf = vsi->back; 5534 struct i40e_ethtool_not_used { 5535 u32 value; 5536 const char *name; 5537 } param[] = { 5538 {edata->advertised & ~SUPPORTED_Autoneg, "advertise"}, 5539 {edata->tx_lpi_timer, "tx-timer"}, 5540 {edata->tx_lpi_enabled != pf->stats.tx_lpi_status, "tx-lpi"} 5541 }; 5542 int i; 5543 5544 for (i = 0; i < ARRAY_SIZE(param); i++) { 5545 if (param[i].value) { 5546 netdev_info(netdev, 5547 "EEE setting %s not supported\n", 5548 param[i].name); 5549 return -EOPNOTSUPP; 5550 } 5551 } 5552 5553 return 0; 5554 } 5555 5556 static int i40e_set_eee(struct net_device *netdev, struct ethtool_eee *edata) 5557 { 5558 struct i40e_netdev_priv *np = netdev_priv(netdev); 5559 struct i40e_aq_get_phy_abilities_resp abilities; 5560 enum i40e_status_code status = I40E_SUCCESS; 5561 struct i40e_aq_set_phy_config config; 5562 struct i40e_vsi *vsi = np->vsi; 5563 struct i40e_pf *pf = vsi->back; 5564 struct i40e_hw *hw = &pf->hw; 5565 __le16 eee_capability; 5566 5567 /* Deny parameters we don't support */ 5568 if (i40e_is_eee_param_supported(netdev, edata)) 5569 return -EOPNOTSUPP; 5570 5571 /* Get initial PHY capabilities */ 5572 status = i40e_aq_get_phy_capabilities(hw, false, true, &abilities, 5573 NULL); 5574 if (status) 5575 return -EAGAIN; 5576 5577 /* Check whether NIC configuration is compatible with Energy Efficient 5578 * Ethernet (EEE) mode. 5579 */ 5580 if (abilities.eee_capability == 0) 5581 return -EOPNOTSUPP; 5582 5583 /* Cache initial EEE capability */ 5584 eee_capability = abilities.eee_capability; 5585 5586 /* Get current PHY configuration */ 5587 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 5588 NULL); 5589 if (status) 5590 return -EAGAIN; 5591 5592 /* Cache current PHY configuration */ 5593 config.phy_type = abilities.phy_type; 5594 config.phy_type_ext = abilities.phy_type_ext; 5595 config.link_speed = abilities.link_speed; 5596 config.abilities = abilities.abilities | 5597 I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 5598 config.eeer = abilities.eeer_val; 5599 config.low_power_ctrl = abilities.d3_lpan; 5600 config.fec_config = abilities.fec_cfg_curr_mod_ext_info & 5601 I40E_AQ_PHY_FEC_CONFIG_MASK; 5602 5603 /* Set desired EEE state */ 5604 if (edata->eee_enabled) { 5605 config.eee_capability = eee_capability; 5606 config.eeer |= cpu_to_le32(I40E_PRTPM_EEER_TX_LPI_EN_MASK); 5607 } else { 5608 config.eee_capability = 0; 5609 config.eeer &= cpu_to_le32(~I40E_PRTPM_EEER_TX_LPI_EN_MASK); 5610 } 5611 5612 /* Apply modified PHY configuration */ 5613 status = i40e_aq_set_phy_config(hw, &config, NULL); 5614 if (status) 5615 return -EAGAIN; 5616 5617 return 0; 5618 } 5619 5620 static const struct ethtool_ops i40e_ethtool_recovery_mode_ops = { 5621 .get_drvinfo = i40e_get_drvinfo, 5622 .set_eeprom = i40e_set_eeprom, 5623 .get_eeprom_len = i40e_get_eeprom_len, 5624 .get_eeprom = i40e_get_eeprom, 5625 }; 5626 5627 static const struct ethtool_ops i40e_ethtool_ops = { 5628 .supported_coalesce_params = ETHTOOL_COALESCE_USECS | 5629 ETHTOOL_COALESCE_MAX_FRAMES_IRQ | 5630 ETHTOOL_COALESCE_USE_ADAPTIVE | 5631 ETHTOOL_COALESCE_RX_USECS_HIGH | 5632 ETHTOOL_COALESCE_TX_USECS_HIGH, 5633 .get_drvinfo = i40e_get_drvinfo, 5634 .get_regs_len = i40e_get_regs_len, 5635 .get_regs = i40e_get_regs, 5636 .nway_reset = i40e_nway_reset, 5637 .get_link = ethtool_op_get_link, 5638 .get_wol = i40e_get_wol, 5639 .set_wol = i40e_set_wol, 5640 .set_eeprom = i40e_set_eeprom, 5641 .get_eeprom_len = i40e_get_eeprom_len, 5642 .get_eeprom = i40e_get_eeprom, 5643 .get_ringparam = i40e_get_ringparam, 5644 .set_ringparam = i40e_set_ringparam, 5645 .get_pauseparam = i40e_get_pauseparam, 5646 .set_pauseparam = i40e_set_pauseparam, 5647 .get_msglevel = i40e_get_msglevel, 5648 .set_msglevel = i40e_set_msglevel, 5649 .get_rxnfc = i40e_get_rxnfc, 5650 .set_rxnfc = i40e_set_rxnfc, 5651 .self_test = i40e_diag_test, 5652 .get_strings = i40e_get_strings, 5653 .get_eee = i40e_get_eee, 5654 .set_eee = i40e_set_eee, 5655 .set_phys_id = i40e_set_phys_id, 5656 .get_sset_count = i40e_get_sset_count, 5657 .get_ethtool_stats = i40e_get_ethtool_stats, 5658 .get_coalesce = i40e_get_coalesce, 5659 .set_coalesce = i40e_set_coalesce, 5660 .get_rxfh_key_size = i40e_get_rxfh_key_size, 5661 .get_rxfh_indir_size = i40e_get_rxfh_indir_size, 5662 .get_rxfh = i40e_get_rxfh, 5663 .set_rxfh = i40e_set_rxfh, 5664 .get_channels = i40e_get_channels, 5665 .set_channels = i40e_set_channels, 5666 .get_module_info = i40e_get_module_info, 5667 .get_module_eeprom = i40e_get_module_eeprom, 5668 .get_ts_info = i40e_get_ts_info, 5669 .get_priv_flags = i40e_get_priv_flags, 5670 .set_priv_flags = i40e_set_priv_flags, 5671 .get_per_queue_coalesce = i40e_get_per_queue_coalesce, 5672 .set_per_queue_coalesce = i40e_set_per_queue_coalesce, 5673 .get_link_ksettings = i40e_get_link_ksettings, 5674 .set_link_ksettings = i40e_set_link_ksettings, 5675 .get_fecparam = i40e_get_fec_param, 5676 .set_fecparam = i40e_set_fec_param, 5677 .flash_device = i40e_ddp_flash, 5678 }; 5679 5680 void i40e_set_ethtool_ops(struct net_device *netdev) 5681 { 5682 struct i40e_netdev_priv *np = netdev_priv(netdev); 5683 struct i40e_pf *pf = np->vsi->back; 5684 5685 if (!test_bit(__I40E_RECOVERY_MODE, pf->state)) 5686 netdev->ethtool_ops = &i40e_ethtool_ops; 5687 else 5688 netdev->ethtool_ops = &i40e_ethtool_recovery_mode_ops; 5689 } 5690