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, 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. 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(&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(&ring->syncp, start)); 185 186 /* Once we successfully copy the stats in, update the data pointer */ 187 *data += size; 188 } 189 190 /** 191 * __i40e_add_stat_strings - copy stat strings into ethtool buffer 192 * @p: ethtool supplied buffer 193 * @stats: stat definitions array 194 * @size: size of the stats array 195 * 196 * Format and copy the strings described by stats into the buffer pointed at 197 * by p. 198 **/ 199 static void __i40e_add_stat_strings(u8 **p, const struct i40e_stats stats[], 200 const unsigned int size, ...) 201 { 202 unsigned int i; 203 204 for (i = 0; i < size; i++) { 205 va_list args; 206 207 va_start(args, size); 208 vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args); 209 *p += ETH_GSTRING_LEN; 210 va_end(args); 211 } 212 } 213 214 /** 215 * i40e_add_stat_strings - copy stat strings into ethtool buffer 216 * @p: ethtool supplied buffer 217 * @stats: stat definitions array 218 * 219 * Format and copy the strings described by the const static stats value into 220 * the buffer pointed at by p. 221 * 222 * The parameter @stats is evaluated twice, so parameters with side effects 223 * should be avoided. Additionally, stats must be an array such that 224 * ARRAY_SIZE can be called on it. 225 **/ 226 #define i40e_add_stat_strings(p, stats, ...) \ 227 __i40e_add_stat_strings(p, stats, ARRAY_SIZE(stats), ## __VA_ARGS__) 228 229 #define I40E_PF_STAT(_name, _stat) \ 230 I40E_STAT(struct i40e_pf, _name, _stat) 231 #define I40E_VSI_STAT(_name, _stat) \ 232 I40E_STAT(struct i40e_vsi, _name, _stat) 233 #define I40E_VEB_STAT(_name, _stat) \ 234 I40E_STAT(struct i40e_veb, _name, _stat) 235 #define I40E_VEB_TC_STAT(_name, _stat) \ 236 I40E_STAT(struct i40e_cp_veb_tc_stats, _name, _stat) 237 #define I40E_PFC_STAT(_name, _stat) \ 238 I40E_STAT(struct i40e_pfc_stats, _name, _stat) 239 240 static const struct i40e_stats i40e_gstrings_net_stats[] = { 241 I40E_NETDEV_STAT(rx_packets), 242 I40E_NETDEV_STAT(tx_packets), 243 I40E_NETDEV_STAT(rx_bytes), 244 I40E_NETDEV_STAT(tx_bytes), 245 I40E_NETDEV_STAT(rx_errors), 246 I40E_NETDEV_STAT(tx_errors), 247 I40E_NETDEV_STAT(rx_dropped), 248 I40E_NETDEV_STAT(tx_dropped), 249 I40E_NETDEV_STAT(collisions), 250 I40E_NETDEV_STAT(rx_length_errors), 251 I40E_NETDEV_STAT(rx_crc_errors), 252 }; 253 254 static const struct i40e_stats i40e_gstrings_veb_stats[] = { 255 I40E_VEB_STAT("veb.rx_bytes", stats.rx_bytes), 256 I40E_VEB_STAT("veb.tx_bytes", stats.tx_bytes), 257 I40E_VEB_STAT("veb.rx_unicast", stats.rx_unicast), 258 I40E_VEB_STAT("veb.tx_unicast", stats.tx_unicast), 259 I40E_VEB_STAT("veb.rx_multicast", stats.rx_multicast), 260 I40E_VEB_STAT("veb.tx_multicast", stats.tx_multicast), 261 I40E_VEB_STAT("veb.rx_broadcast", stats.rx_broadcast), 262 I40E_VEB_STAT("veb.tx_broadcast", stats.tx_broadcast), 263 I40E_VEB_STAT("veb.rx_discards", stats.rx_discards), 264 I40E_VEB_STAT("veb.tx_discards", stats.tx_discards), 265 I40E_VEB_STAT("veb.tx_errors", stats.tx_errors), 266 I40E_VEB_STAT("veb.rx_unknown_protocol", stats.rx_unknown_protocol), 267 }; 268 269 struct i40e_cp_veb_tc_stats { 270 u64 tc_rx_packets; 271 u64 tc_rx_bytes; 272 u64 tc_tx_packets; 273 u64 tc_tx_bytes; 274 }; 275 276 static const struct i40e_stats i40e_gstrings_veb_tc_stats[] = { 277 I40E_VEB_TC_STAT("veb.tc_%u_tx_packets", tc_tx_packets), 278 I40E_VEB_TC_STAT("veb.tc_%u_tx_bytes", tc_tx_bytes), 279 I40E_VEB_TC_STAT("veb.tc_%u_rx_packets", tc_rx_packets), 280 I40E_VEB_TC_STAT("veb.tc_%u_rx_bytes", tc_rx_bytes), 281 }; 282 283 static const struct i40e_stats i40e_gstrings_misc_stats[] = { 284 I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast), 285 I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast), 286 I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast), 287 I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast), 288 I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast), 289 I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast), 290 I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol), 291 I40E_VSI_STAT("tx_linearize", tx_linearize), 292 I40E_VSI_STAT("tx_force_wb", tx_force_wb), 293 I40E_VSI_STAT("tx_busy", tx_busy), 294 I40E_VSI_STAT("tx_stopped", tx_stopped), 295 I40E_VSI_STAT("rx_alloc_fail", rx_buf_failed), 296 I40E_VSI_STAT("rx_pg_alloc_fail", rx_page_failed), 297 I40E_VSI_STAT("rx_cache_reuse", rx_page_reuse), 298 I40E_VSI_STAT("rx_cache_alloc", rx_page_alloc), 299 I40E_VSI_STAT("rx_cache_waive", rx_page_waive), 300 I40E_VSI_STAT("rx_cache_busy", rx_page_busy), 301 I40E_VSI_STAT("tx_restart", tx_restart), 302 }; 303 304 /* These PF_STATs might look like duplicates of some NETDEV_STATs, 305 * but they are separate. This device supports Virtualization, and 306 * as such might have several netdevs supporting VMDq and FCoE going 307 * through a single port. The NETDEV_STATs are for individual netdevs 308 * seen at the top of the stack, and the PF_STATs are for the physical 309 * function at the bottom of the stack hosting those netdevs. 310 * 311 * The PF_STATs are appended to the netdev stats only when ethtool -S 312 * is queried on the base PF netdev, not on the VMDq or FCoE netdev. 313 */ 314 static const struct i40e_stats i40e_gstrings_stats[] = { 315 I40E_PF_STAT("port.rx_bytes", stats.eth.rx_bytes), 316 I40E_PF_STAT("port.tx_bytes", stats.eth.tx_bytes), 317 I40E_PF_STAT("port.rx_unicast", stats.eth.rx_unicast), 318 I40E_PF_STAT("port.tx_unicast", stats.eth.tx_unicast), 319 I40E_PF_STAT("port.rx_multicast", stats.eth.rx_multicast), 320 I40E_PF_STAT("port.tx_multicast", stats.eth.tx_multicast), 321 I40E_PF_STAT("port.rx_broadcast", stats.eth.rx_broadcast), 322 I40E_PF_STAT("port.tx_broadcast", stats.eth.tx_broadcast), 323 I40E_PF_STAT("port.tx_errors", stats.eth.tx_errors), 324 I40E_PF_STAT("port.rx_dropped", stats.eth.rx_discards), 325 I40E_PF_STAT("port.tx_dropped_link_down", stats.tx_dropped_link_down), 326 I40E_PF_STAT("port.rx_crc_errors", stats.crc_errors), 327 I40E_PF_STAT("port.illegal_bytes", stats.illegal_bytes), 328 I40E_PF_STAT("port.mac_local_faults", stats.mac_local_faults), 329 I40E_PF_STAT("port.mac_remote_faults", stats.mac_remote_faults), 330 I40E_PF_STAT("port.tx_timeout", tx_timeout_count), 331 I40E_PF_STAT("port.rx_csum_bad", hw_csum_rx_error), 332 I40E_PF_STAT("port.rx_length_errors", stats.rx_length_errors), 333 I40E_PF_STAT("port.link_xon_rx", stats.link_xon_rx), 334 I40E_PF_STAT("port.link_xoff_rx", stats.link_xoff_rx), 335 I40E_PF_STAT("port.link_xon_tx", stats.link_xon_tx), 336 I40E_PF_STAT("port.link_xoff_tx", stats.link_xoff_tx), 337 I40E_PF_STAT("port.rx_size_64", stats.rx_size_64), 338 I40E_PF_STAT("port.rx_size_127", stats.rx_size_127), 339 I40E_PF_STAT("port.rx_size_255", stats.rx_size_255), 340 I40E_PF_STAT("port.rx_size_511", stats.rx_size_511), 341 I40E_PF_STAT("port.rx_size_1023", stats.rx_size_1023), 342 I40E_PF_STAT("port.rx_size_1522", stats.rx_size_1522), 343 I40E_PF_STAT("port.rx_size_big", stats.rx_size_big), 344 I40E_PF_STAT("port.tx_size_64", stats.tx_size_64), 345 I40E_PF_STAT("port.tx_size_127", stats.tx_size_127), 346 I40E_PF_STAT("port.tx_size_255", stats.tx_size_255), 347 I40E_PF_STAT("port.tx_size_511", stats.tx_size_511), 348 I40E_PF_STAT("port.tx_size_1023", stats.tx_size_1023), 349 I40E_PF_STAT("port.tx_size_1522", stats.tx_size_1522), 350 I40E_PF_STAT("port.tx_size_big", stats.tx_size_big), 351 I40E_PF_STAT("port.rx_undersize", stats.rx_undersize), 352 I40E_PF_STAT("port.rx_fragments", stats.rx_fragments), 353 I40E_PF_STAT("port.rx_oversize", stats.rx_oversize), 354 I40E_PF_STAT("port.rx_jabber", stats.rx_jabber), 355 I40E_PF_STAT("port.VF_admin_queue_requests", vf_aq_requests), 356 I40E_PF_STAT("port.arq_overflows", arq_overflows), 357 I40E_PF_STAT("port.tx_hwtstamp_timeouts", tx_hwtstamp_timeouts), 358 I40E_PF_STAT("port.rx_hwtstamp_cleared", rx_hwtstamp_cleared), 359 I40E_PF_STAT("port.tx_hwtstamp_skipped", tx_hwtstamp_skipped), 360 I40E_PF_STAT("port.fdir_flush_cnt", fd_flush_cnt), 361 I40E_PF_STAT("port.fdir_atr_match", stats.fd_atr_match), 362 I40E_PF_STAT("port.fdir_atr_tunnel_match", stats.fd_atr_tunnel_match), 363 I40E_PF_STAT("port.fdir_atr_status", stats.fd_atr_status), 364 I40E_PF_STAT("port.fdir_sb_match", stats.fd_sb_match), 365 I40E_PF_STAT("port.fdir_sb_status", stats.fd_sb_status), 366 367 /* LPI stats */ 368 I40E_PF_STAT("port.tx_lpi_status", stats.tx_lpi_status), 369 I40E_PF_STAT("port.rx_lpi_status", stats.rx_lpi_status), 370 I40E_PF_STAT("port.tx_lpi_count", stats.tx_lpi_count), 371 I40E_PF_STAT("port.rx_lpi_count", stats.rx_lpi_count), 372 }; 373 374 struct i40e_pfc_stats { 375 u64 priority_xon_rx; 376 u64 priority_xoff_rx; 377 u64 priority_xon_tx; 378 u64 priority_xoff_tx; 379 u64 priority_xon_2_xoff; 380 }; 381 382 static const struct i40e_stats i40e_gstrings_pfc_stats[] = { 383 I40E_PFC_STAT("port.tx_priority_%u_xon_tx", priority_xon_tx), 384 I40E_PFC_STAT("port.tx_priority_%u_xoff_tx", priority_xoff_tx), 385 I40E_PFC_STAT("port.rx_priority_%u_xon_rx", priority_xon_rx), 386 I40E_PFC_STAT("port.rx_priority_%u_xoff_rx", priority_xoff_rx), 387 I40E_PFC_STAT("port.rx_priority_%u_xon_2_xoff", priority_xon_2_xoff), 388 }; 389 390 #define I40E_NETDEV_STATS_LEN ARRAY_SIZE(i40e_gstrings_net_stats) 391 392 #define I40E_MISC_STATS_LEN ARRAY_SIZE(i40e_gstrings_misc_stats) 393 394 #define I40E_VSI_STATS_LEN (I40E_NETDEV_STATS_LEN + I40E_MISC_STATS_LEN) 395 396 #define I40E_PFC_STATS_LEN (ARRAY_SIZE(i40e_gstrings_pfc_stats) * \ 397 I40E_MAX_USER_PRIORITY) 398 399 #define I40E_VEB_STATS_LEN (ARRAY_SIZE(i40e_gstrings_veb_stats) + \ 400 (ARRAY_SIZE(i40e_gstrings_veb_tc_stats) * \ 401 I40E_MAX_TRAFFIC_CLASS)) 402 403 #define I40E_GLOBAL_STATS_LEN ARRAY_SIZE(i40e_gstrings_stats) 404 405 #define I40E_PF_STATS_LEN (I40E_GLOBAL_STATS_LEN + \ 406 I40E_PFC_STATS_LEN + \ 407 I40E_VEB_STATS_LEN + \ 408 I40E_VSI_STATS_LEN) 409 410 /* Length of stats for a single queue */ 411 #define I40E_QUEUE_STATS_LEN ARRAY_SIZE(i40e_gstrings_queue_stats) 412 413 enum i40e_ethtool_test_id { 414 I40E_ETH_TEST_REG = 0, 415 I40E_ETH_TEST_EEPROM, 416 I40E_ETH_TEST_INTR, 417 I40E_ETH_TEST_LINK, 418 }; 419 420 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = { 421 "Register test (offline)", 422 "Eeprom test (offline)", 423 "Interrupt test (offline)", 424 "Link test (on/offline)" 425 }; 426 427 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN) 428 429 struct i40e_priv_flags { 430 char flag_string[ETH_GSTRING_LEN]; 431 u64 flag; 432 bool read_only; 433 }; 434 435 #define I40E_PRIV_FLAG(_name, _flag, _read_only) { \ 436 .flag_string = _name, \ 437 .flag = _flag, \ 438 .read_only = _read_only, \ 439 } 440 441 static const struct i40e_priv_flags i40e_gstrings_priv_flags[] = { 442 /* NOTE: MFP setting cannot be changed */ 443 I40E_PRIV_FLAG("MFP", I40E_FLAG_MFP_ENABLED, 1), 444 I40E_PRIV_FLAG("total-port-shutdown", 445 I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED, 1), 446 I40E_PRIV_FLAG("LinkPolling", I40E_FLAG_LINK_POLLING_ENABLED, 0), 447 I40E_PRIV_FLAG("flow-director-atr", I40E_FLAG_FD_ATR_ENABLED, 0), 448 I40E_PRIV_FLAG("veb-stats", I40E_FLAG_VEB_STATS_ENABLED, 0), 449 I40E_PRIV_FLAG("hw-atr-eviction", I40E_FLAG_HW_ATR_EVICT_ENABLED, 0), 450 I40E_PRIV_FLAG("link-down-on-close", 451 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED, 0), 452 I40E_PRIV_FLAG("legacy-rx", I40E_FLAG_LEGACY_RX, 0), 453 I40E_PRIV_FLAG("disable-source-pruning", 454 I40E_FLAG_SOURCE_PRUNING_DISABLED, 0), 455 I40E_PRIV_FLAG("disable-fw-lldp", I40E_FLAG_DISABLE_FW_LLDP, 0), 456 I40E_PRIV_FLAG("rs-fec", I40E_FLAG_RS_FEC, 0), 457 I40E_PRIV_FLAG("base-r-fec", I40E_FLAG_BASE_R_FEC, 0), 458 I40E_PRIV_FLAG("vf-vlan-pruning", 459 I40E_FLAG_VF_VLAN_PRUNING, 0), 460 }; 461 462 #define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gstrings_priv_flags) 463 464 /* Private flags with a global effect, restricted to PF 0 */ 465 static const struct i40e_priv_flags i40e_gl_gstrings_priv_flags[] = { 466 I40E_PRIV_FLAG("vf-true-promisc-support", 467 I40E_FLAG_TRUE_PROMISC_SUPPORT, 0), 468 }; 469 470 #define I40E_GL_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gl_gstrings_priv_flags) 471 472 /** 473 * i40e_partition_setting_complaint - generic complaint for MFP restriction 474 * @pf: the PF struct 475 **/ 476 static void i40e_partition_setting_complaint(struct i40e_pf *pf) 477 { 478 dev_info(&pf->pdev->dev, 479 "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"); 480 } 481 482 /** 483 * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes 484 * @pf: PF struct with phy_types 485 * @ks: ethtool link ksettings struct to fill out 486 * 487 **/ 488 static void i40e_phy_type_to_ethtool(struct i40e_pf *pf, 489 struct ethtool_link_ksettings *ks) 490 { 491 struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info; 492 u64 phy_types = pf->hw.phy.phy_types; 493 494 ethtool_link_ksettings_zero_link_mode(ks, supported); 495 ethtool_link_ksettings_zero_link_mode(ks, advertising); 496 497 if (phy_types & I40E_CAP_PHY_TYPE_SGMII) { 498 ethtool_link_ksettings_add_link_mode(ks, supported, 499 1000baseT_Full); 500 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 501 ethtool_link_ksettings_add_link_mode(ks, advertising, 502 1000baseT_Full); 503 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) { 504 ethtool_link_ksettings_add_link_mode(ks, supported, 505 100baseT_Full); 506 ethtool_link_ksettings_add_link_mode(ks, advertising, 507 100baseT_Full); 508 } 509 } 510 if (phy_types & I40E_CAP_PHY_TYPE_XAUI || 511 phy_types & I40E_CAP_PHY_TYPE_XFI || 512 phy_types & I40E_CAP_PHY_TYPE_SFI || 513 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU || 514 phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC) { 515 ethtool_link_ksettings_add_link_mode(ks, supported, 516 10000baseT_Full); 517 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 518 ethtool_link_ksettings_add_link_mode(ks, advertising, 519 10000baseT_Full); 520 } 521 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_T) { 522 ethtool_link_ksettings_add_link_mode(ks, supported, 523 10000baseT_Full); 524 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 525 ethtool_link_ksettings_add_link_mode(ks, advertising, 526 10000baseT_Full); 527 } 528 if (phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T) { 529 ethtool_link_ksettings_add_link_mode(ks, supported, 530 2500baseT_Full); 531 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB) 532 ethtool_link_ksettings_add_link_mode(ks, advertising, 533 2500baseT_Full); 534 } 535 if (phy_types & I40E_CAP_PHY_TYPE_5GBASE_T) { 536 ethtool_link_ksettings_add_link_mode(ks, supported, 537 5000baseT_Full); 538 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB) 539 ethtool_link_ksettings_add_link_mode(ks, advertising, 540 5000baseT_Full); 541 } 542 if (phy_types & I40E_CAP_PHY_TYPE_XLAUI || 543 phy_types & I40E_CAP_PHY_TYPE_XLPPI || 544 phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC) 545 ethtool_link_ksettings_add_link_mode(ks, supported, 546 40000baseCR4_Full); 547 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU || 548 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) { 549 ethtool_link_ksettings_add_link_mode(ks, supported, 550 40000baseCR4_Full); 551 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB) 552 ethtool_link_ksettings_add_link_mode(ks, advertising, 553 40000baseCR4_Full); 554 } 555 if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) { 556 ethtool_link_ksettings_add_link_mode(ks, supported, 557 100baseT_Full); 558 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 559 ethtool_link_ksettings_add_link_mode(ks, advertising, 560 100baseT_Full); 561 } 562 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T) { 563 ethtool_link_ksettings_add_link_mode(ks, supported, 564 1000baseT_Full); 565 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 566 ethtool_link_ksettings_add_link_mode(ks, advertising, 567 1000baseT_Full); 568 } 569 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4) { 570 ethtool_link_ksettings_add_link_mode(ks, supported, 571 40000baseSR4_Full); 572 ethtool_link_ksettings_add_link_mode(ks, advertising, 573 40000baseSR4_Full); 574 } 575 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4) { 576 ethtool_link_ksettings_add_link_mode(ks, supported, 577 40000baseLR4_Full); 578 ethtool_link_ksettings_add_link_mode(ks, advertising, 579 40000baseLR4_Full); 580 } 581 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) { 582 ethtool_link_ksettings_add_link_mode(ks, supported, 583 40000baseKR4_Full); 584 ethtool_link_ksettings_add_link_mode(ks, advertising, 585 40000baseKR4_Full); 586 } 587 if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) { 588 ethtool_link_ksettings_add_link_mode(ks, supported, 589 20000baseKR2_Full); 590 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB) 591 ethtool_link_ksettings_add_link_mode(ks, advertising, 592 20000baseKR2_Full); 593 } 594 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) { 595 ethtool_link_ksettings_add_link_mode(ks, supported, 596 10000baseKX4_Full); 597 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 598 ethtool_link_ksettings_add_link_mode(ks, advertising, 599 10000baseKX4_Full); 600 } 601 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR && 602 !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) { 603 ethtool_link_ksettings_add_link_mode(ks, supported, 604 10000baseKR_Full); 605 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 606 ethtool_link_ksettings_add_link_mode(ks, advertising, 607 10000baseKR_Full); 608 } 609 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX && 610 !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) { 611 ethtool_link_ksettings_add_link_mode(ks, supported, 612 1000baseKX_Full); 613 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 614 ethtool_link_ksettings_add_link_mode(ks, advertising, 615 1000baseKX_Full); 616 } 617 /* need to add 25G PHY types */ 618 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR) { 619 ethtool_link_ksettings_add_link_mode(ks, supported, 620 25000baseKR_Full); 621 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 622 ethtool_link_ksettings_add_link_mode(ks, advertising, 623 25000baseKR_Full); 624 } 625 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR) { 626 ethtool_link_ksettings_add_link_mode(ks, supported, 627 25000baseCR_Full); 628 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 629 ethtool_link_ksettings_add_link_mode(ks, advertising, 630 25000baseCR_Full); 631 } 632 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 633 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR) { 634 ethtool_link_ksettings_add_link_mode(ks, supported, 635 25000baseSR_Full); 636 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 637 ethtool_link_ksettings_add_link_mode(ks, advertising, 638 25000baseSR_Full); 639 } 640 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC || 641 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) { 642 ethtool_link_ksettings_add_link_mode(ks, supported, 643 25000baseCR_Full); 644 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 645 ethtool_link_ksettings_add_link_mode(ks, advertising, 646 25000baseCR_Full); 647 } 648 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR || 649 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR || 650 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 651 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR || 652 phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC || 653 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) { 654 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); 655 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); 656 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); 657 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) { 658 ethtool_link_ksettings_add_link_mode(ks, advertising, 659 FEC_NONE); 660 ethtool_link_ksettings_add_link_mode(ks, advertising, 661 FEC_RS); 662 ethtool_link_ksettings_add_link_mode(ks, advertising, 663 FEC_BASER); 664 } 665 } 666 /* need to add new 10G PHY types */ 667 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 || 668 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU) { 669 ethtool_link_ksettings_add_link_mode(ks, supported, 670 10000baseCR_Full); 671 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 672 ethtool_link_ksettings_add_link_mode(ks, advertising, 673 10000baseCR_Full); 674 } 675 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR) { 676 ethtool_link_ksettings_add_link_mode(ks, supported, 677 10000baseSR_Full); 678 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 679 ethtool_link_ksettings_add_link_mode(ks, advertising, 680 10000baseSR_Full); 681 } 682 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) { 683 ethtool_link_ksettings_add_link_mode(ks, supported, 684 10000baseLR_Full); 685 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 686 ethtool_link_ksettings_add_link_mode(ks, advertising, 687 10000baseLR_Full); 688 } 689 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX || 690 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX || 691 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) { 692 ethtool_link_ksettings_add_link_mode(ks, supported, 693 1000baseX_Full); 694 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 695 ethtool_link_ksettings_add_link_mode(ks, advertising, 696 1000baseX_Full); 697 } 698 /* Autoneg PHY types */ 699 if (phy_types & I40E_CAP_PHY_TYPE_SGMII || 700 phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4 || 701 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU || 702 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4 || 703 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 704 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR || 705 phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR || 706 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR || 707 phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2 || 708 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR || 709 phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR || 710 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4 || 711 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR || 712 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU || 713 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 || 714 phy_types & I40E_CAP_PHY_TYPE_10GBASE_T || 715 phy_types & I40E_CAP_PHY_TYPE_5GBASE_T || 716 phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T || 717 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL || 718 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T || 719 phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX || 720 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX || 721 phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX || 722 phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) { 723 ethtool_link_ksettings_add_link_mode(ks, supported, 724 Autoneg); 725 ethtool_link_ksettings_add_link_mode(ks, advertising, 726 Autoneg); 727 } 728 } 729 730 /** 731 * i40e_get_settings_link_up_fec - Get the FEC mode encoding from mask 732 * @req_fec_info: mask request FEC info 733 * @ks: ethtool ksettings to fill in 734 **/ 735 static void i40e_get_settings_link_up_fec(u8 req_fec_info, 736 struct ethtool_link_ksettings *ks) 737 { 738 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); 739 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); 740 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); 741 742 if ((I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) && 743 (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info)) { 744 ethtool_link_ksettings_add_link_mode(ks, advertising, 745 FEC_NONE); 746 ethtool_link_ksettings_add_link_mode(ks, advertising, 747 FEC_BASER); 748 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); 749 } else if (I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) { 750 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); 751 } else if (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info) { 752 ethtool_link_ksettings_add_link_mode(ks, advertising, 753 FEC_BASER); 754 } else { 755 ethtool_link_ksettings_add_link_mode(ks, advertising, 756 FEC_NONE); 757 } 758 } 759 760 /** 761 * i40e_get_settings_link_up - Get the Link settings for when link is up 762 * @hw: hw structure 763 * @ks: ethtool ksettings to fill in 764 * @netdev: network interface device structure 765 * @pf: pointer to physical function struct 766 **/ 767 static void i40e_get_settings_link_up(struct i40e_hw *hw, 768 struct ethtool_link_ksettings *ks, 769 struct net_device *netdev, 770 struct i40e_pf *pf) 771 { 772 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 773 struct ethtool_link_ksettings cap_ksettings; 774 u32 link_speed = hw_link_info->link_speed; 775 776 /* Initialize supported and advertised settings based on phy settings */ 777 switch (hw_link_info->phy_type) { 778 case I40E_PHY_TYPE_40GBASE_CR4: 779 case I40E_PHY_TYPE_40GBASE_CR4_CU: 780 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 781 ethtool_link_ksettings_add_link_mode(ks, supported, 782 40000baseCR4_Full); 783 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 784 ethtool_link_ksettings_add_link_mode(ks, advertising, 785 40000baseCR4_Full); 786 break; 787 case I40E_PHY_TYPE_XLAUI: 788 case I40E_PHY_TYPE_XLPPI: 789 case I40E_PHY_TYPE_40GBASE_AOC: 790 ethtool_link_ksettings_add_link_mode(ks, supported, 791 40000baseCR4_Full); 792 ethtool_link_ksettings_add_link_mode(ks, advertising, 793 40000baseCR4_Full); 794 break; 795 case I40E_PHY_TYPE_40GBASE_SR4: 796 ethtool_link_ksettings_add_link_mode(ks, supported, 797 40000baseSR4_Full); 798 ethtool_link_ksettings_add_link_mode(ks, advertising, 799 40000baseSR4_Full); 800 break; 801 case I40E_PHY_TYPE_40GBASE_LR4: 802 ethtool_link_ksettings_add_link_mode(ks, supported, 803 40000baseLR4_Full); 804 ethtool_link_ksettings_add_link_mode(ks, advertising, 805 40000baseLR4_Full); 806 break; 807 case I40E_PHY_TYPE_25GBASE_SR: 808 case I40E_PHY_TYPE_25GBASE_LR: 809 case I40E_PHY_TYPE_10GBASE_SR: 810 case I40E_PHY_TYPE_10GBASE_LR: 811 case I40E_PHY_TYPE_1000BASE_SX: 812 case I40E_PHY_TYPE_1000BASE_LX: 813 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 814 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 815 ethtool_link_ksettings_add_link_mode(ks, supported, 816 25000baseSR_Full); 817 ethtool_link_ksettings_add_link_mode(ks, advertising, 818 25000baseSR_Full); 819 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 820 ethtool_link_ksettings_add_link_mode(ks, supported, 821 10000baseSR_Full); 822 ethtool_link_ksettings_add_link_mode(ks, advertising, 823 10000baseSR_Full); 824 ethtool_link_ksettings_add_link_mode(ks, supported, 825 10000baseLR_Full); 826 ethtool_link_ksettings_add_link_mode(ks, advertising, 827 10000baseLR_Full); 828 ethtool_link_ksettings_add_link_mode(ks, supported, 829 1000baseX_Full); 830 ethtool_link_ksettings_add_link_mode(ks, advertising, 831 1000baseX_Full); 832 ethtool_link_ksettings_add_link_mode(ks, supported, 833 10000baseT_Full); 834 if (hw_link_info->module_type[2] & 835 I40E_MODULE_TYPE_1000BASE_SX || 836 hw_link_info->module_type[2] & 837 I40E_MODULE_TYPE_1000BASE_LX) { 838 ethtool_link_ksettings_add_link_mode(ks, supported, 839 1000baseT_Full); 840 if (hw_link_info->requested_speeds & 841 I40E_LINK_SPEED_1GB) 842 ethtool_link_ksettings_add_link_mode( 843 ks, advertising, 1000baseT_Full); 844 } 845 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 846 ethtool_link_ksettings_add_link_mode(ks, advertising, 847 10000baseT_Full); 848 break; 849 case I40E_PHY_TYPE_10GBASE_T: 850 case I40E_PHY_TYPE_5GBASE_T_LINK_STATUS: 851 case I40E_PHY_TYPE_2_5GBASE_T_LINK_STATUS: 852 case I40E_PHY_TYPE_1000BASE_T: 853 case I40E_PHY_TYPE_100BASE_TX: 854 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 855 ethtool_link_ksettings_add_link_mode(ks, supported, 856 10000baseT_Full); 857 ethtool_link_ksettings_add_link_mode(ks, supported, 858 5000baseT_Full); 859 ethtool_link_ksettings_add_link_mode(ks, supported, 860 2500baseT_Full); 861 ethtool_link_ksettings_add_link_mode(ks, supported, 862 1000baseT_Full); 863 ethtool_link_ksettings_add_link_mode(ks, supported, 864 100baseT_Full); 865 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 866 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 867 ethtool_link_ksettings_add_link_mode(ks, advertising, 868 10000baseT_Full); 869 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB) 870 ethtool_link_ksettings_add_link_mode(ks, advertising, 871 5000baseT_Full); 872 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB) 873 ethtool_link_ksettings_add_link_mode(ks, advertising, 874 2500baseT_Full); 875 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 876 ethtool_link_ksettings_add_link_mode(ks, advertising, 877 1000baseT_Full); 878 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 879 ethtool_link_ksettings_add_link_mode(ks, advertising, 880 100baseT_Full); 881 break; 882 case I40E_PHY_TYPE_1000BASE_T_OPTICAL: 883 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 884 ethtool_link_ksettings_add_link_mode(ks, supported, 885 1000baseT_Full); 886 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 887 ethtool_link_ksettings_add_link_mode(ks, advertising, 888 1000baseT_Full); 889 break; 890 case I40E_PHY_TYPE_10GBASE_CR1_CU: 891 case I40E_PHY_TYPE_10GBASE_CR1: 892 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 893 ethtool_link_ksettings_add_link_mode(ks, supported, 894 10000baseT_Full); 895 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 896 ethtool_link_ksettings_add_link_mode(ks, advertising, 897 10000baseT_Full); 898 break; 899 case I40E_PHY_TYPE_XAUI: 900 case I40E_PHY_TYPE_XFI: 901 case I40E_PHY_TYPE_SFI: 902 case I40E_PHY_TYPE_10GBASE_SFPP_CU: 903 case I40E_PHY_TYPE_10GBASE_AOC: 904 ethtool_link_ksettings_add_link_mode(ks, supported, 905 10000baseT_Full); 906 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 907 ethtool_link_ksettings_add_link_mode(ks, advertising, 908 10000baseT_Full); 909 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 910 break; 911 case I40E_PHY_TYPE_SGMII: 912 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 913 ethtool_link_ksettings_add_link_mode(ks, supported, 914 1000baseT_Full); 915 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 916 ethtool_link_ksettings_add_link_mode(ks, advertising, 917 1000baseT_Full); 918 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) { 919 ethtool_link_ksettings_add_link_mode(ks, supported, 920 100baseT_Full); 921 if (hw_link_info->requested_speeds & 922 I40E_LINK_SPEED_100MB) 923 ethtool_link_ksettings_add_link_mode( 924 ks, advertising, 100baseT_Full); 925 } 926 break; 927 case I40E_PHY_TYPE_40GBASE_KR4: 928 case I40E_PHY_TYPE_25GBASE_KR: 929 case I40E_PHY_TYPE_20GBASE_KR2: 930 case I40E_PHY_TYPE_10GBASE_KR: 931 case I40E_PHY_TYPE_10GBASE_KX4: 932 case I40E_PHY_TYPE_1000BASE_KX: 933 ethtool_link_ksettings_add_link_mode(ks, supported, 934 40000baseKR4_Full); 935 ethtool_link_ksettings_add_link_mode(ks, supported, 936 25000baseKR_Full); 937 ethtool_link_ksettings_add_link_mode(ks, supported, 938 20000baseKR2_Full); 939 ethtool_link_ksettings_add_link_mode(ks, supported, 940 10000baseKR_Full); 941 ethtool_link_ksettings_add_link_mode(ks, supported, 942 10000baseKX4_Full); 943 ethtool_link_ksettings_add_link_mode(ks, supported, 944 1000baseKX_Full); 945 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 946 ethtool_link_ksettings_add_link_mode(ks, advertising, 947 40000baseKR4_Full); 948 ethtool_link_ksettings_add_link_mode(ks, advertising, 949 25000baseKR_Full); 950 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 951 ethtool_link_ksettings_add_link_mode(ks, advertising, 952 20000baseKR2_Full); 953 ethtool_link_ksettings_add_link_mode(ks, advertising, 954 10000baseKR_Full); 955 ethtool_link_ksettings_add_link_mode(ks, advertising, 956 10000baseKX4_Full); 957 ethtool_link_ksettings_add_link_mode(ks, advertising, 958 1000baseKX_Full); 959 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 960 break; 961 case I40E_PHY_TYPE_25GBASE_CR: 962 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 963 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 964 ethtool_link_ksettings_add_link_mode(ks, supported, 965 25000baseCR_Full); 966 ethtool_link_ksettings_add_link_mode(ks, advertising, 967 25000baseCR_Full); 968 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 969 970 break; 971 case I40E_PHY_TYPE_25GBASE_AOC: 972 case I40E_PHY_TYPE_25GBASE_ACC: 973 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 974 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 975 ethtool_link_ksettings_add_link_mode(ks, supported, 976 25000baseCR_Full); 977 ethtool_link_ksettings_add_link_mode(ks, advertising, 978 25000baseCR_Full); 979 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 980 981 ethtool_link_ksettings_add_link_mode(ks, supported, 982 10000baseCR_Full); 983 ethtool_link_ksettings_add_link_mode(ks, advertising, 984 10000baseCR_Full); 985 break; 986 default: 987 /* if we got here and link is up something bad is afoot */ 988 netdev_info(netdev, 989 "WARNING: Link is up but PHY type 0x%x is not recognized, or incorrect cable is in use\n", 990 hw_link_info->phy_type); 991 } 992 993 /* Now that we've worked out everything that could be supported by the 994 * current PHY type, get what is supported by the NVM and intersect 995 * them to get what is truly supported 996 */ 997 memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings)); 998 i40e_phy_type_to_ethtool(pf, &cap_ksettings); 999 ethtool_intersect_link_masks(ks, &cap_ksettings); 1000 1001 /* Set speed and duplex */ 1002 switch (link_speed) { 1003 case I40E_LINK_SPEED_40GB: 1004 ks->base.speed = SPEED_40000; 1005 break; 1006 case I40E_LINK_SPEED_25GB: 1007 ks->base.speed = SPEED_25000; 1008 break; 1009 case I40E_LINK_SPEED_20GB: 1010 ks->base.speed = SPEED_20000; 1011 break; 1012 case I40E_LINK_SPEED_10GB: 1013 ks->base.speed = SPEED_10000; 1014 break; 1015 case I40E_LINK_SPEED_5GB: 1016 ks->base.speed = SPEED_5000; 1017 break; 1018 case I40E_LINK_SPEED_2_5GB: 1019 ks->base.speed = SPEED_2500; 1020 break; 1021 case I40E_LINK_SPEED_1GB: 1022 ks->base.speed = SPEED_1000; 1023 break; 1024 case I40E_LINK_SPEED_100MB: 1025 ks->base.speed = SPEED_100; 1026 break; 1027 default: 1028 ks->base.speed = SPEED_UNKNOWN; 1029 break; 1030 } 1031 ks->base.duplex = DUPLEX_FULL; 1032 } 1033 1034 /** 1035 * i40e_get_settings_link_down - Get the Link settings for when link is down 1036 * @hw: hw structure 1037 * @ks: ethtool ksettings to fill in 1038 * @pf: pointer to physical function struct 1039 * 1040 * Reports link settings that can be determined when link is down 1041 **/ 1042 static void i40e_get_settings_link_down(struct i40e_hw *hw, 1043 struct ethtool_link_ksettings *ks, 1044 struct i40e_pf *pf) 1045 { 1046 /* link is down and the driver needs to fall back on 1047 * supported phy types to figure out what info to display 1048 */ 1049 i40e_phy_type_to_ethtool(pf, ks); 1050 1051 /* With no link speed and duplex are unknown */ 1052 ks->base.speed = SPEED_UNKNOWN; 1053 ks->base.duplex = DUPLEX_UNKNOWN; 1054 } 1055 1056 /** 1057 * i40e_get_link_ksettings - Get Link Speed and Duplex settings 1058 * @netdev: network interface device structure 1059 * @ks: ethtool ksettings 1060 * 1061 * Reports speed/duplex settings based on media_type 1062 **/ 1063 static int i40e_get_link_ksettings(struct net_device *netdev, 1064 struct ethtool_link_ksettings *ks) 1065 { 1066 struct i40e_netdev_priv *np = netdev_priv(netdev); 1067 struct i40e_pf *pf = np->vsi->back; 1068 struct i40e_hw *hw = &pf->hw; 1069 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1070 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 1071 1072 ethtool_link_ksettings_zero_link_mode(ks, supported); 1073 ethtool_link_ksettings_zero_link_mode(ks, advertising); 1074 1075 if (link_up) 1076 i40e_get_settings_link_up(hw, ks, netdev, pf); 1077 else 1078 i40e_get_settings_link_down(hw, ks, pf); 1079 1080 /* Now set the settings that don't rely on link being up/down */ 1081 /* Set autoneg settings */ 1082 ks->base.autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 1083 AUTONEG_ENABLE : AUTONEG_DISABLE); 1084 1085 /* Set media type settings */ 1086 switch (hw->phy.media_type) { 1087 case I40E_MEDIA_TYPE_BACKPLANE: 1088 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 1089 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane); 1090 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 1091 ethtool_link_ksettings_add_link_mode(ks, advertising, 1092 Backplane); 1093 ks->base.port = PORT_NONE; 1094 break; 1095 case I40E_MEDIA_TYPE_BASET: 1096 ethtool_link_ksettings_add_link_mode(ks, supported, TP); 1097 ethtool_link_ksettings_add_link_mode(ks, advertising, TP); 1098 ks->base.port = PORT_TP; 1099 break; 1100 case I40E_MEDIA_TYPE_DA: 1101 case I40E_MEDIA_TYPE_CX4: 1102 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1103 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 1104 ks->base.port = PORT_DA; 1105 break; 1106 case I40E_MEDIA_TYPE_FIBER: 1107 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1108 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 1109 ks->base.port = PORT_FIBRE; 1110 break; 1111 case I40E_MEDIA_TYPE_UNKNOWN: 1112 default: 1113 ks->base.port = PORT_OTHER; 1114 break; 1115 } 1116 1117 /* Set flow control settings */ 1118 ethtool_link_ksettings_add_link_mode(ks, supported, Pause); 1119 ethtool_link_ksettings_add_link_mode(ks, supported, Asym_Pause); 1120 1121 switch (hw->fc.requested_mode) { 1122 case I40E_FC_FULL: 1123 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1124 break; 1125 case I40E_FC_TX_PAUSE: 1126 ethtool_link_ksettings_add_link_mode(ks, advertising, 1127 Asym_Pause); 1128 break; 1129 case I40E_FC_RX_PAUSE: 1130 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1131 ethtool_link_ksettings_add_link_mode(ks, advertising, 1132 Asym_Pause); 1133 break; 1134 default: 1135 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause); 1136 ethtool_link_ksettings_del_link_mode(ks, advertising, 1137 Asym_Pause); 1138 break; 1139 } 1140 1141 return 0; 1142 } 1143 1144 #define I40E_LBIT_SIZE 8 1145 /** 1146 * i40e_speed_to_link_speed - Translate decimal speed to i40e_aq_link_speed 1147 * @speed: speed in decimal 1148 * @ks: ethtool ksettings 1149 * 1150 * Return i40e_aq_link_speed based on speed 1151 **/ 1152 static enum i40e_aq_link_speed 1153 i40e_speed_to_link_speed(__u32 speed, const struct ethtool_link_ksettings *ks) 1154 { 1155 enum i40e_aq_link_speed link_speed = I40E_LINK_SPEED_UNKNOWN; 1156 bool speed_changed = false; 1157 int i, j; 1158 1159 static const struct { 1160 __u32 speed; 1161 enum i40e_aq_link_speed link_speed; 1162 __u8 bit[I40E_LBIT_SIZE]; 1163 } i40e_speed_lut[] = { 1164 #define I40E_LBIT(mode) ETHTOOL_LINK_MODE_ ## mode ##_Full_BIT 1165 {SPEED_100, I40E_LINK_SPEED_100MB, {I40E_LBIT(100baseT)} }, 1166 {SPEED_1000, I40E_LINK_SPEED_1GB, 1167 {I40E_LBIT(1000baseT), I40E_LBIT(1000baseX), 1168 I40E_LBIT(1000baseKX)} }, 1169 {SPEED_10000, I40E_LINK_SPEED_10GB, 1170 {I40E_LBIT(10000baseT), I40E_LBIT(10000baseKR), 1171 I40E_LBIT(10000baseLR), I40E_LBIT(10000baseCR), 1172 I40E_LBIT(10000baseSR), I40E_LBIT(10000baseKX4)} }, 1173 1174 {SPEED_25000, I40E_LINK_SPEED_25GB, 1175 {I40E_LBIT(25000baseCR), I40E_LBIT(25000baseKR), 1176 I40E_LBIT(25000baseSR)} }, 1177 {SPEED_40000, I40E_LINK_SPEED_40GB, 1178 {I40E_LBIT(40000baseKR4), I40E_LBIT(40000baseCR4), 1179 I40E_LBIT(40000baseSR4), I40E_LBIT(40000baseLR4)} }, 1180 {SPEED_20000, I40E_LINK_SPEED_20GB, 1181 {I40E_LBIT(20000baseKR2)} }, 1182 {SPEED_2500, I40E_LINK_SPEED_2_5GB, {I40E_LBIT(2500baseT)} }, 1183 {SPEED_5000, I40E_LINK_SPEED_5GB, {I40E_LBIT(2500baseT)} } 1184 #undef I40E_LBIT 1185 }; 1186 1187 for (i = 0; i < ARRAY_SIZE(i40e_speed_lut); i++) { 1188 if (i40e_speed_lut[i].speed == speed) { 1189 for (j = 0; j < I40E_LBIT_SIZE; j++) { 1190 if (test_bit(i40e_speed_lut[i].bit[j], 1191 ks->link_modes.supported)) { 1192 speed_changed = true; 1193 break; 1194 } 1195 if (!i40e_speed_lut[i].bit[j]) 1196 break; 1197 } 1198 if (speed_changed) { 1199 link_speed = i40e_speed_lut[i].link_speed; 1200 break; 1201 } 1202 } 1203 } 1204 return link_speed; 1205 } 1206 1207 #undef I40E_LBIT_SIZE 1208 1209 /** 1210 * i40e_set_link_ksettings - Set Speed and Duplex 1211 * @netdev: network interface device structure 1212 * @ks: ethtool ksettings 1213 * 1214 * Set speed/duplex per media_types advertised/forced 1215 **/ 1216 static int i40e_set_link_ksettings(struct net_device *netdev, 1217 const struct ethtool_link_ksettings *ks) 1218 { 1219 struct i40e_netdev_priv *np = netdev_priv(netdev); 1220 struct i40e_aq_get_phy_abilities_resp abilities; 1221 struct ethtool_link_ksettings safe_ks; 1222 struct ethtool_link_ksettings copy_ks; 1223 struct i40e_aq_set_phy_config config; 1224 struct i40e_pf *pf = np->vsi->back; 1225 enum i40e_aq_link_speed link_speed; 1226 struct i40e_vsi *vsi = np->vsi; 1227 struct i40e_hw *hw = &pf->hw; 1228 bool autoneg_changed = false; 1229 i40e_status status = 0; 1230 int timeout = 50; 1231 int err = 0; 1232 __u32 speed; 1233 u8 autoneg; 1234 1235 /* Changing port settings is not supported if this isn't the 1236 * port's controlling PF 1237 */ 1238 if (hw->partition_id != 1) { 1239 i40e_partition_setting_complaint(pf); 1240 return -EOPNOTSUPP; 1241 } 1242 if (vsi != pf->vsi[pf->lan_vsi]) 1243 return -EOPNOTSUPP; 1244 if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET && 1245 hw->phy.media_type != I40E_MEDIA_TYPE_FIBER && 1246 hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE && 1247 hw->phy.media_type != I40E_MEDIA_TYPE_DA && 1248 hw->phy.link_info.link_info & I40E_AQ_LINK_UP) 1249 return -EOPNOTSUPP; 1250 if (hw->device_id == I40E_DEV_ID_KX_B || 1251 hw->device_id == I40E_DEV_ID_KX_C || 1252 hw->device_id == I40E_DEV_ID_20G_KR2 || 1253 hw->device_id == I40E_DEV_ID_20G_KR2_A || 1254 hw->device_id == I40E_DEV_ID_25G_B || 1255 hw->device_id == I40E_DEV_ID_KX_X722) { 1256 netdev_info(netdev, "Changing settings is not supported on backplane.\n"); 1257 return -EOPNOTSUPP; 1258 } 1259 1260 /* copy the ksettings to copy_ks to avoid modifying the origin */ 1261 memcpy(©_ks, ks, sizeof(struct ethtool_link_ksettings)); 1262 1263 /* save autoneg out of ksettings */ 1264 autoneg = copy_ks.base.autoneg; 1265 speed = copy_ks.base.speed; 1266 1267 /* get our own copy of the bits to check against */ 1268 memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings)); 1269 safe_ks.base.cmd = copy_ks.base.cmd; 1270 safe_ks.base.link_mode_masks_nwords = 1271 copy_ks.base.link_mode_masks_nwords; 1272 i40e_get_link_ksettings(netdev, &safe_ks); 1273 1274 /* Get link modes supported by hardware and check against modes 1275 * requested by the user. Return an error if unsupported mode was set. 1276 */ 1277 if (!bitmap_subset(copy_ks.link_modes.advertising, 1278 safe_ks.link_modes.supported, 1279 __ETHTOOL_LINK_MODE_MASK_NBITS)) 1280 return -EINVAL; 1281 1282 /* set autoneg back to what it currently is */ 1283 copy_ks.base.autoneg = safe_ks.base.autoneg; 1284 copy_ks.base.speed = safe_ks.base.speed; 1285 1286 /* If copy_ks.base and safe_ks.base are not the same now, then they are 1287 * trying to set something that we do not support. 1288 */ 1289 if (memcmp(©_ks.base, &safe_ks.base, 1290 sizeof(struct ethtool_link_settings))) { 1291 netdev_err(netdev, "Only speed and autoneg are supported.\n"); 1292 return -EOPNOTSUPP; 1293 } 1294 1295 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { 1296 timeout--; 1297 if (!timeout) 1298 return -EBUSY; 1299 usleep_range(1000, 2000); 1300 } 1301 1302 /* Get the current phy config */ 1303 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1304 NULL); 1305 if (status) { 1306 err = -EAGAIN; 1307 goto done; 1308 } 1309 1310 /* Copy abilities to config in case autoneg is not 1311 * set below 1312 */ 1313 memset(&config, 0, sizeof(struct i40e_aq_set_phy_config)); 1314 config.abilities = abilities.abilities; 1315 1316 /* Check autoneg */ 1317 if (autoneg == AUTONEG_ENABLE) { 1318 /* If autoneg was not already enabled */ 1319 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) { 1320 /* If autoneg is not supported, return error */ 1321 if (!ethtool_link_ksettings_test_link_mode(&safe_ks, 1322 supported, 1323 Autoneg)) { 1324 netdev_info(netdev, "Autoneg not supported on this phy\n"); 1325 err = -EINVAL; 1326 goto done; 1327 } 1328 /* Autoneg is allowed to change */ 1329 config.abilities = abilities.abilities | 1330 I40E_AQ_PHY_ENABLE_AN; 1331 autoneg_changed = true; 1332 } 1333 } else { 1334 /* If autoneg is currently enabled */ 1335 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) { 1336 /* If autoneg is supported 10GBASE_T is the only PHY 1337 * that can disable it, so otherwise return error 1338 */ 1339 if (ethtool_link_ksettings_test_link_mode(&safe_ks, 1340 supported, 1341 Autoneg) && 1342 hw->phy.media_type != I40E_MEDIA_TYPE_BASET) { 1343 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n"); 1344 err = -EINVAL; 1345 goto done; 1346 } 1347 /* Autoneg is allowed to change */ 1348 config.abilities = abilities.abilities & 1349 ~I40E_AQ_PHY_ENABLE_AN; 1350 autoneg_changed = true; 1351 } 1352 } 1353 1354 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1355 100baseT_Full)) 1356 config.link_speed |= I40E_LINK_SPEED_100MB; 1357 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1358 1000baseT_Full) || 1359 ethtool_link_ksettings_test_link_mode(ks, advertising, 1360 1000baseX_Full) || 1361 ethtool_link_ksettings_test_link_mode(ks, advertising, 1362 1000baseKX_Full)) 1363 config.link_speed |= I40E_LINK_SPEED_1GB; 1364 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1365 10000baseT_Full) || 1366 ethtool_link_ksettings_test_link_mode(ks, advertising, 1367 10000baseKX4_Full) || 1368 ethtool_link_ksettings_test_link_mode(ks, advertising, 1369 10000baseKR_Full) || 1370 ethtool_link_ksettings_test_link_mode(ks, advertising, 1371 10000baseCR_Full) || 1372 ethtool_link_ksettings_test_link_mode(ks, advertising, 1373 10000baseSR_Full) || 1374 ethtool_link_ksettings_test_link_mode(ks, advertising, 1375 10000baseLR_Full)) 1376 config.link_speed |= I40E_LINK_SPEED_10GB; 1377 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1378 2500baseT_Full)) 1379 config.link_speed |= I40E_LINK_SPEED_2_5GB; 1380 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1381 5000baseT_Full)) 1382 config.link_speed |= I40E_LINK_SPEED_5GB; 1383 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1384 20000baseKR2_Full)) 1385 config.link_speed |= I40E_LINK_SPEED_20GB; 1386 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1387 25000baseCR_Full) || 1388 ethtool_link_ksettings_test_link_mode(ks, advertising, 1389 25000baseKR_Full) || 1390 ethtool_link_ksettings_test_link_mode(ks, advertising, 1391 25000baseSR_Full)) 1392 config.link_speed |= I40E_LINK_SPEED_25GB; 1393 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1394 40000baseKR4_Full) || 1395 ethtool_link_ksettings_test_link_mode(ks, advertising, 1396 40000baseCR4_Full) || 1397 ethtool_link_ksettings_test_link_mode(ks, advertising, 1398 40000baseSR4_Full) || 1399 ethtool_link_ksettings_test_link_mode(ks, advertising, 1400 40000baseLR4_Full)) 1401 config.link_speed |= I40E_LINK_SPEED_40GB; 1402 1403 /* Autonegotiation must be disabled to change speed */ 1404 if ((speed != SPEED_UNKNOWN && safe_ks.base.speed != speed) && 1405 (autoneg == AUTONEG_DISABLE || 1406 (safe_ks.base.autoneg == AUTONEG_DISABLE && !autoneg_changed))) { 1407 link_speed = i40e_speed_to_link_speed(speed, ks); 1408 if (link_speed == I40E_LINK_SPEED_UNKNOWN) { 1409 netdev_info(netdev, "Given speed is not supported\n"); 1410 err = -EOPNOTSUPP; 1411 goto done; 1412 } else { 1413 config.link_speed = link_speed; 1414 } 1415 } else { 1416 if (safe_ks.base.speed != speed) { 1417 netdev_info(netdev, 1418 "Unable to set speed, disable autoneg\n"); 1419 err = -EOPNOTSUPP; 1420 goto done; 1421 } 1422 } 1423 1424 /* If speed didn't get set, set it to what it currently is. 1425 * This is needed because if advertise is 0 (as it is when autoneg 1426 * is disabled) then speed won't get set. 1427 */ 1428 if (!config.link_speed) 1429 config.link_speed = abilities.link_speed; 1430 if (autoneg_changed || abilities.link_speed != config.link_speed) { 1431 /* copy over the rest of the abilities */ 1432 config.phy_type = abilities.phy_type; 1433 config.phy_type_ext = abilities.phy_type_ext; 1434 config.eee_capability = abilities.eee_capability; 1435 config.eeer = abilities.eeer_val; 1436 config.low_power_ctrl = abilities.d3_lpan; 1437 config.fec_config = abilities.fec_cfg_curr_mod_ext_info & 1438 I40E_AQ_PHY_FEC_CONFIG_MASK; 1439 1440 /* save the requested speeds */ 1441 hw->phy.link_info.requested_speeds = config.link_speed; 1442 /* set link and auto negotiation so changes take effect */ 1443 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 1444 /* If link is up put link down */ 1445 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) { 1446 /* Tell the OS link is going down, the link will go 1447 * back up when fw says it is ready asynchronously 1448 */ 1449 i40e_print_link_message(vsi, false); 1450 netif_carrier_off(netdev); 1451 netif_tx_stop_all_queues(netdev); 1452 } 1453 1454 /* make the aq call */ 1455 status = i40e_aq_set_phy_config(hw, &config, NULL); 1456 if (status) { 1457 netdev_info(netdev, 1458 "Set phy config failed, err %s aq_err %s\n", 1459 i40e_stat_str(hw, status), 1460 i40e_aq_str(hw, hw->aq.asq_last_status)); 1461 err = -EAGAIN; 1462 goto done; 1463 } 1464 1465 status = i40e_update_link_info(hw); 1466 if (status) 1467 netdev_dbg(netdev, 1468 "Updating link info failed with err %s aq_err %s\n", 1469 i40e_stat_str(hw, status), 1470 i40e_aq_str(hw, hw->aq.asq_last_status)); 1471 1472 } else { 1473 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n"); 1474 } 1475 1476 done: 1477 clear_bit(__I40E_CONFIG_BUSY, pf->state); 1478 1479 return err; 1480 } 1481 1482 static int i40e_set_fec_cfg(struct net_device *netdev, u8 fec_cfg) 1483 { 1484 struct i40e_netdev_priv *np = netdev_priv(netdev); 1485 struct i40e_aq_get_phy_abilities_resp abilities; 1486 struct i40e_pf *pf = np->vsi->back; 1487 struct i40e_hw *hw = &pf->hw; 1488 i40e_status status = 0; 1489 u32 flags = 0; 1490 int err = 0; 1491 1492 flags = READ_ONCE(pf->flags); 1493 i40e_set_fec_in_flags(fec_cfg, &flags); 1494 1495 /* Get the current phy config */ 1496 memset(&abilities, 0, sizeof(abilities)); 1497 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1498 NULL); 1499 if (status) { 1500 err = -EAGAIN; 1501 goto done; 1502 } 1503 1504 if (abilities.fec_cfg_curr_mod_ext_info != fec_cfg) { 1505 struct i40e_aq_set_phy_config config; 1506 1507 memset(&config, 0, sizeof(config)); 1508 config.phy_type = abilities.phy_type; 1509 config.abilities = abilities.abilities | 1510 I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 1511 config.phy_type_ext = abilities.phy_type_ext; 1512 config.link_speed = abilities.link_speed; 1513 config.eee_capability = abilities.eee_capability; 1514 config.eeer = abilities.eeer_val; 1515 config.low_power_ctrl = abilities.d3_lpan; 1516 config.fec_config = fec_cfg & I40E_AQ_PHY_FEC_CONFIG_MASK; 1517 status = i40e_aq_set_phy_config(hw, &config, NULL); 1518 if (status) { 1519 netdev_info(netdev, 1520 "Set phy config failed, err %s aq_err %s\n", 1521 i40e_stat_str(hw, status), 1522 i40e_aq_str(hw, hw->aq.asq_last_status)); 1523 err = -EAGAIN; 1524 goto done; 1525 } 1526 pf->flags = flags; 1527 status = i40e_update_link_info(hw); 1528 if (status) 1529 /* debug level message only due to relation to the link 1530 * itself rather than to the FEC settings 1531 * (e.g. no physical connection etc.) 1532 */ 1533 netdev_dbg(netdev, 1534 "Updating link info failed with err %s aq_err %s\n", 1535 i40e_stat_str(hw, status), 1536 i40e_aq_str(hw, hw->aq.asq_last_status)); 1537 } 1538 1539 done: 1540 return err; 1541 } 1542 1543 static int i40e_get_fec_param(struct net_device *netdev, 1544 struct ethtool_fecparam *fecparam) 1545 { 1546 struct i40e_netdev_priv *np = netdev_priv(netdev); 1547 struct i40e_aq_get_phy_abilities_resp abilities; 1548 struct i40e_pf *pf = np->vsi->back; 1549 struct i40e_hw *hw = &pf->hw; 1550 i40e_status status = 0; 1551 int err = 0; 1552 u8 fec_cfg; 1553 1554 /* Get the current phy config */ 1555 memset(&abilities, 0, sizeof(abilities)); 1556 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1557 NULL); 1558 if (status) { 1559 err = -EAGAIN; 1560 goto done; 1561 } 1562 1563 fecparam->fec = 0; 1564 fec_cfg = abilities.fec_cfg_curr_mod_ext_info; 1565 if (fec_cfg & I40E_AQ_SET_FEC_AUTO) 1566 fecparam->fec |= ETHTOOL_FEC_AUTO; 1567 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_RS | 1568 I40E_AQ_SET_FEC_ABILITY_RS)) 1569 fecparam->fec |= ETHTOOL_FEC_RS; 1570 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_KR | 1571 I40E_AQ_SET_FEC_ABILITY_KR)) 1572 fecparam->fec |= ETHTOOL_FEC_BASER; 1573 if (fec_cfg == 0) 1574 fecparam->fec |= ETHTOOL_FEC_OFF; 1575 1576 if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_KR_ENA) 1577 fecparam->active_fec = ETHTOOL_FEC_BASER; 1578 else if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_RS_ENA) 1579 fecparam->active_fec = ETHTOOL_FEC_RS; 1580 else 1581 fecparam->active_fec = ETHTOOL_FEC_OFF; 1582 done: 1583 return err; 1584 } 1585 1586 static int i40e_set_fec_param(struct net_device *netdev, 1587 struct ethtool_fecparam *fecparam) 1588 { 1589 struct i40e_netdev_priv *np = netdev_priv(netdev); 1590 struct i40e_pf *pf = np->vsi->back; 1591 struct i40e_hw *hw = &pf->hw; 1592 u8 fec_cfg = 0; 1593 1594 if (hw->device_id != I40E_DEV_ID_25G_SFP28 && 1595 hw->device_id != I40E_DEV_ID_25G_B && 1596 hw->device_id != I40E_DEV_ID_KX_X722) 1597 return -EPERM; 1598 1599 if (hw->mac.type == I40E_MAC_X722 && 1600 !(hw->flags & I40E_HW_FLAG_X722_FEC_REQUEST_CAPABLE)) { 1601 netdev_err(netdev, "Setting FEC encoding not supported by firmware. Please update the NVM image.\n"); 1602 return -EOPNOTSUPP; 1603 } 1604 1605 switch (fecparam->fec) { 1606 case ETHTOOL_FEC_AUTO: 1607 fec_cfg = I40E_AQ_SET_FEC_AUTO; 1608 break; 1609 case ETHTOOL_FEC_RS: 1610 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS | 1611 I40E_AQ_SET_FEC_ABILITY_RS); 1612 break; 1613 case ETHTOOL_FEC_BASER: 1614 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR | 1615 I40E_AQ_SET_FEC_ABILITY_KR); 1616 break; 1617 case ETHTOOL_FEC_OFF: 1618 case ETHTOOL_FEC_NONE: 1619 fec_cfg = 0; 1620 break; 1621 default: 1622 dev_warn(&pf->pdev->dev, "Unsupported FEC mode: %d", 1623 fecparam->fec); 1624 return -EINVAL; 1625 } 1626 1627 return i40e_set_fec_cfg(netdev, fec_cfg); 1628 } 1629 1630 static int i40e_nway_reset(struct net_device *netdev) 1631 { 1632 /* restart autonegotiation */ 1633 struct i40e_netdev_priv *np = netdev_priv(netdev); 1634 struct i40e_pf *pf = np->vsi->back; 1635 struct i40e_hw *hw = &pf->hw; 1636 bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP; 1637 i40e_status ret = 0; 1638 1639 ret = i40e_aq_set_link_restart_an(hw, link_up, NULL); 1640 if (ret) { 1641 netdev_info(netdev, "link restart failed, err %s aq_err %s\n", 1642 i40e_stat_str(hw, ret), 1643 i40e_aq_str(hw, hw->aq.asq_last_status)); 1644 return -EIO; 1645 } 1646 1647 return 0; 1648 } 1649 1650 /** 1651 * i40e_get_pauseparam - Get Flow Control status 1652 * @netdev: netdevice structure 1653 * @pause: buffer to return pause parameters 1654 * 1655 * Return tx/rx-pause status 1656 **/ 1657 static void i40e_get_pauseparam(struct net_device *netdev, 1658 struct ethtool_pauseparam *pause) 1659 { 1660 struct i40e_netdev_priv *np = netdev_priv(netdev); 1661 struct i40e_pf *pf = np->vsi->back; 1662 struct i40e_hw *hw = &pf->hw; 1663 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1664 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 1665 1666 pause->autoneg = 1667 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 1668 AUTONEG_ENABLE : AUTONEG_DISABLE); 1669 1670 /* PFC enabled so report LFC as off */ 1671 if (dcbx_cfg->pfc.pfcenable) { 1672 pause->rx_pause = 0; 1673 pause->tx_pause = 0; 1674 return; 1675 } 1676 1677 if (hw->fc.current_mode == I40E_FC_RX_PAUSE) { 1678 pause->rx_pause = 1; 1679 } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) { 1680 pause->tx_pause = 1; 1681 } else if (hw->fc.current_mode == I40E_FC_FULL) { 1682 pause->rx_pause = 1; 1683 pause->tx_pause = 1; 1684 } 1685 } 1686 1687 /** 1688 * i40e_set_pauseparam - Set Flow Control parameter 1689 * @netdev: network interface device structure 1690 * @pause: return tx/rx flow control status 1691 **/ 1692 static int i40e_set_pauseparam(struct net_device *netdev, 1693 struct ethtool_pauseparam *pause) 1694 { 1695 struct i40e_netdev_priv *np = netdev_priv(netdev); 1696 struct i40e_pf *pf = np->vsi->back; 1697 struct i40e_vsi *vsi = np->vsi; 1698 struct i40e_hw *hw = &pf->hw; 1699 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1700 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 1701 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 1702 i40e_status status; 1703 u8 aq_failures; 1704 int err = 0; 1705 u32 is_an; 1706 1707 /* Changing the port's flow control is not supported if this isn't the 1708 * port's controlling PF 1709 */ 1710 if (hw->partition_id != 1) { 1711 i40e_partition_setting_complaint(pf); 1712 return -EOPNOTSUPP; 1713 } 1714 1715 if (vsi != pf->vsi[pf->lan_vsi]) 1716 return -EOPNOTSUPP; 1717 1718 is_an = hw_link_info->an_info & I40E_AQ_AN_COMPLETED; 1719 if (pause->autoneg != is_an) { 1720 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n"); 1721 return -EOPNOTSUPP; 1722 } 1723 1724 /* If we have link and don't have autoneg */ 1725 if (!test_bit(__I40E_DOWN, pf->state) && !is_an) { 1726 /* Send message that it might not necessarily work*/ 1727 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n"); 1728 } 1729 1730 if (dcbx_cfg->pfc.pfcenable) { 1731 netdev_info(netdev, 1732 "Priority flow control enabled. Cannot set link flow control.\n"); 1733 return -EOPNOTSUPP; 1734 } 1735 1736 if (pause->rx_pause && pause->tx_pause) 1737 hw->fc.requested_mode = I40E_FC_FULL; 1738 else if (pause->rx_pause && !pause->tx_pause) 1739 hw->fc.requested_mode = I40E_FC_RX_PAUSE; 1740 else if (!pause->rx_pause && pause->tx_pause) 1741 hw->fc.requested_mode = I40E_FC_TX_PAUSE; 1742 else if (!pause->rx_pause && !pause->tx_pause) 1743 hw->fc.requested_mode = I40E_FC_NONE; 1744 else 1745 return -EINVAL; 1746 1747 /* Tell the OS link is going down, the link will go back up when fw 1748 * says it is ready asynchronously 1749 */ 1750 i40e_print_link_message(vsi, false); 1751 netif_carrier_off(netdev); 1752 netif_tx_stop_all_queues(netdev); 1753 1754 /* Set the fc mode and only restart an if link is up*/ 1755 status = i40e_set_fc(hw, &aq_failures, link_up); 1756 1757 if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) { 1758 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n", 1759 i40e_stat_str(hw, status), 1760 i40e_aq_str(hw, hw->aq.asq_last_status)); 1761 err = -EAGAIN; 1762 } 1763 if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) { 1764 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n", 1765 i40e_stat_str(hw, status), 1766 i40e_aq_str(hw, hw->aq.asq_last_status)); 1767 err = -EAGAIN; 1768 } 1769 if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) { 1770 netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n", 1771 i40e_stat_str(hw, status), 1772 i40e_aq_str(hw, hw->aq.asq_last_status)); 1773 err = -EAGAIN; 1774 } 1775 1776 if (!test_bit(__I40E_DOWN, pf->state) && is_an) { 1777 /* Give it a little more time to try to come back */ 1778 msleep(75); 1779 if (!test_bit(__I40E_DOWN, pf->state)) 1780 return i40e_nway_reset(netdev); 1781 } 1782 1783 return err; 1784 } 1785 1786 static u32 i40e_get_msglevel(struct net_device *netdev) 1787 { 1788 struct i40e_netdev_priv *np = netdev_priv(netdev); 1789 struct i40e_pf *pf = np->vsi->back; 1790 u32 debug_mask = pf->hw.debug_mask; 1791 1792 if (debug_mask) 1793 netdev_info(netdev, "i40e debug_mask: 0x%08X\n", debug_mask); 1794 1795 return pf->msg_enable; 1796 } 1797 1798 static void i40e_set_msglevel(struct net_device *netdev, u32 data) 1799 { 1800 struct i40e_netdev_priv *np = netdev_priv(netdev); 1801 struct i40e_pf *pf = np->vsi->back; 1802 1803 if (I40E_DEBUG_USER & data) 1804 pf->hw.debug_mask = data; 1805 else 1806 pf->msg_enable = data; 1807 } 1808 1809 static int i40e_get_regs_len(struct net_device *netdev) 1810 { 1811 int reg_count = 0; 1812 int i; 1813 1814 for (i = 0; i40e_reg_list[i].offset != 0; i++) 1815 reg_count += i40e_reg_list[i].elements; 1816 1817 return reg_count * sizeof(u32); 1818 } 1819 1820 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs, 1821 void *p) 1822 { 1823 struct i40e_netdev_priv *np = netdev_priv(netdev); 1824 struct i40e_pf *pf = np->vsi->back; 1825 struct i40e_hw *hw = &pf->hw; 1826 u32 *reg_buf = p; 1827 unsigned int i, j, ri; 1828 u32 reg; 1829 1830 /* Tell ethtool which driver-version-specific regs output we have. 1831 * 1832 * At some point, if we have ethtool doing special formatting of 1833 * this data, it will rely on this version number to know how to 1834 * interpret things. Hence, this needs to be updated if/when the 1835 * diags register table is changed. 1836 */ 1837 regs->version = 1; 1838 1839 /* loop through the diags reg table for what to print */ 1840 ri = 0; 1841 for (i = 0; i40e_reg_list[i].offset != 0; i++) { 1842 for (j = 0; j < i40e_reg_list[i].elements; j++) { 1843 reg = i40e_reg_list[i].offset 1844 + (j * i40e_reg_list[i].stride); 1845 reg_buf[ri++] = rd32(hw, reg); 1846 } 1847 } 1848 1849 } 1850 1851 static int i40e_get_eeprom(struct net_device *netdev, 1852 struct ethtool_eeprom *eeprom, u8 *bytes) 1853 { 1854 struct i40e_netdev_priv *np = netdev_priv(netdev); 1855 struct i40e_hw *hw = &np->vsi->back->hw; 1856 struct i40e_pf *pf = np->vsi->back; 1857 int ret_val = 0, len, offset; 1858 u8 *eeprom_buff; 1859 u16 i, sectors; 1860 bool last; 1861 u32 magic; 1862 1863 #define I40E_NVM_SECTOR_SIZE 4096 1864 if (eeprom->len == 0) 1865 return -EINVAL; 1866 1867 /* check for NVMUpdate access method */ 1868 magic = hw->vendor_id | (hw->device_id << 16); 1869 if (eeprom->magic && eeprom->magic != magic) { 1870 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1871 int errno = 0; 1872 1873 /* make sure it is the right magic for NVMUpdate */ 1874 if ((eeprom->magic >> 16) != hw->device_id) 1875 errno = -EINVAL; 1876 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 1877 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 1878 errno = -EBUSY; 1879 else 1880 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1881 1882 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1883 dev_info(&pf->pdev->dev, 1884 "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1885 ret_val, hw->aq.asq_last_status, errno, 1886 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1887 cmd->offset, cmd->data_size); 1888 1889 return errno; 1890 } 1891 1892 /* normal ethtool get_eeprom support */ 1893 eeprom->magic = hw->vendor_id | (hw->device_id << 16); 1894 1895 eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL); 1896 if (!eeprom_buff) 1897 return -ENOMEM; 1898 1899 ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ); 1900 if (ret_val) { 1901 dev_info(&pf->pdev->dev, 1902 "Failed Acquiring NVM resource for read err=%d status=0x%x\n", 1903 ret_val, hw->aq.asq_last_status); 1904 goto free_buff; 1905 } 1906 1907 sectors = eeprom->len / I40E_NVM_SECTOR_SIZE; 1908 sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0; 1909 len = I40E_NVM_SECTOR_SIZE; 1910 last = false; 1911 for (i = 0; i < sectors; i++) { 1912 if (i == (sectors - 1)) { 1913 len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i); 1914 last = true; 1915 } 1916 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i), 1917 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len, 1918 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i), 1919 last, NULL); 1920 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) { 1921 dev_info(&pf->pdev->dev, 1922 "read NVM failed, invalid offset 0x%x\n", 1923 offset); 1924 break; 1925 } else if (ret_val && 1926 hw->aq.asq_last_status == I40E_AQ_RC_EACCES) { 1927 dev_info(&pf->pdev->dev, 1928 "read NVM failed, access, offset 0x%x\n", 1929 offset); 1930 break; 1931 } else if (ret_val) { 1932 dev_info(&pf->pdev->dev, 1933 "read NVM failed offset %d err=%d status=0x%x\n", 1934 offset, ret_val, hw->aq.asq_last_status); 1935 break; 1936 } 1937 } 1938 1939 i40e_release_nvm(hw); 1940 memcpy(bytes, (u8 *)eeprom_buff, eeprom->len); 1941 free_buff: 1942 kfree(eeprom_buff); 1943 return ret_val; 1944 } 1945 1946 static int i40e_get_eeprom_len(struct net_device *netdev) 1947 { 1948 struct i40e_netdev_priv *np = netdev_priv(netdev); 1949 struct i40e_hw *hw = &np->vsi->back->hw; 1950 u32 val; 1951 1952 #define X722_EEPROM_SCOPE_LIMIT 0x5B9FFF 1953 if (hw->mac.type == I40E_MAC_X722) { 1954 val = X722_EEPROM_SCOPE_LIMIT + 1; 1955 return val; 1956 } 1957 val = (rd32(hw, I40E_GLPCI_LBARCTRL) 1958 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK) 1959 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT; 1960 /* register returns value in power of 2, 64Kbyte chunks. */ 1961 val = (64 * 1024) * BIT(val); 1962 return val; 1963 } 1964 1965 static int i40e_set_eeprom(struct net_device *netdev, 1966 struct ethtool_eeprom *eeprom, u8 *bytes) 1967 { 1968 struct i40e_netdev_priv *np = netdev_priv(netdev); 1969 struct i40e_hw *hw = &np->vsi->back->hw; 1970 struct i40e_pf *pf = np->vsi->back; 1971 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1972 int ret_val = 0; 1973 int errno = 0; 1974 u32 magic; 1975 1976 /* normal ethtool set_eeprom is not supported */ 1977 magic = hw->vendor_id | (hw->device_id << 16); 1978 if (eeprom->magic == magic) 1979 errno = -EOPNOTSUPP; 1980 /* check for NVMUpdate access method */ 1981 else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id) 1982 errno = -EINVAL; 1983 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 1984 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 1985 errno = -EBUSY; 1986 else 1987 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1988 1989 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1990 dev_info(&pf->pdev->dev, 1991 "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1992 ret_val, hw->aq.asq_last_status, errno, 1993 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1994 cmd->offset, cmd->data_size); 1995 1996 return errno; 1997 } 1998 1999 static void i40e_get_drvinfo(struct net_device *netdev, 2000 struct ethtool_drvinfo *drvinfo) 2001 { 2002 struct i40e_netdev_priv *np = netdev_priv(netdev); 2003 struct i40e_vsi *vsi = np->vsi; 2004 struct i40e_pf *pf = vsi->back; 2005 2006 strscpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver)); 2007 strscpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw), 2008 sizeof(drvinfo->fw_version)); 2009 strscpy(drvinfo->bus_info, pci_name(pf->pdev), 2010 sizeof(drvinfo->bus_info)); 2011 drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN; 2012 if (pf->hw.pf_id == 0) 2013 drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN; 2014 } 2015 2016 static void i40e_get_ringparam(struct net_device *netdev, 2017 struct ethtool_ringparam *ring, 2018 struct kernel_ethtool_ringparam *kernel_ring, 2019 struct netlink_ext_ack *extack) 2020 { 2021 struct i40e_netdev_priv *np = netdev_priv(netdev); 2022 struct i40e_pf *pf = np->vsi->back; 2023 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; 2024 2025 ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS; 2026 ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS; 2027 ring->rx_mini_max_pending = 0; 2028 ring->rx_jumbo_max_pending = 0; 2029 ring->rx_pending = vsi->rx_rings[0]->count; 2030 ring->tx_pending = vsi->tx_rings[0]->count; 2031 ring->rx_mini_pending = 0; 2032 ring->rx_jumbo_pending = 0; 2033 } 2034 2035 static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index) 2036 { 2037 if (i40e_enabled_xdp_vsi(vsi)) { 2038 return index < vsi->num_queue_pairs || 2039 (index >= vsi->alloc_queue_pairs && 2040 index < vsi->alloc_queue_pairs + vsi->num_queue_pairs); 2041 } 2042 2043 return index < vsi->num_queue_pairs; 2044 } 2045 2046 static int i40e_set_ringparam(struct net_device *netdev, 2047 struct ethtool_ringparam *ring, 2048 struct kernel_ethtool_ringparam *kernel_ring, 2049 struct netlink_ext_ack *extack) 2050 { 2051 struct i40e_ring *tx_rings = NULL, *rx_rings = NULL; 2052 struct i40e_netdev_priv *np = netdev_priv(netdev); 2053 struct i40e_hw *hw = &np->vsi->back->hw; 2054 struct i40e_vsi *vsi = np->vsi; 2055 struct i40e_pf *pf = vsi->back; 2056 u32 new_rx_count, new_tx_count; 2057 u16 tx_alloc_queue_pairs; 2058 int timeout = 50; 2059 int i, err = 0; 2060 2061 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) 2062 return -EINVAL; 2063 2064 if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS || 2065 ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS || 2066 ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS || 2067 ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) { 2068 netdev_info(netdev, 2069 "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n", 2070 ring->tx_pending, ring->rx_pending, 2071 I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS); 2072 return -EINVAL; 2073 } 2074 2075 new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 2076 new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 2077 2078 /* if nothing to do return success */ 2079 if ((new_tx_count == vsi->tx_rings[0]->count) && 2080 (new_rx_count == vsi->rx_rings[0]->count)) 2081 return 0; 2082 2083 /* If there is a AF_XDP page pool attached to any of Rx rings, 2084 * disallow changing the number of descriptors -- regardless 2085 * if the netdev is running or not. 2086 */ 2087 if (i40e_xsk_any_rx_ring_enabled(vsi)) 2088 return -EBUSY; 2089 2090 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { 2091 timeout--; 2092 if (!timeout) 2093 return -EBUSY; 2094 usleep_range(1000, 2000); 2095 } 2096 2097 if (!netif_running(vsi->netdev)) { 2098 /* simple case - set for the next time the netdev is started */ 2099 for (i = 0; i < vsi->num_queue_pairs; i++) { 2100 vsi->tx_rings[i]->count = new_tx_count; 2101 vsi->rx_rings[i]->count = new_rx_count; 2102 if (i40e_enabled_xdp_vsi(vsi)) 2103 vsi->xdp_rings[i]->count = new_tx_count; 2104 } 2105 vsi->num_tx_desc = new_tx_count; 2106 vsi->num_rx_desc = new_rx_count; 2107 goto done; 2108 } 2109 2110 /* We can't just free everything and then setup again, 2111 * because the ISRs in MSI-X mode get passed pointers 2112 * to the Tx and Rx ring structs. 2113 */ 2114 2115 /* alloc updated Tx and XDP Tx resources */ 2116 tx_alloc_queue_pairs = vsi->alloc_queue_pairs * 2117 (i40e_enabled_xdp_vsi(vsi) ? 2 : 1); 2118 if (new_tx_count != vsi->tx_rings[0]->count) { 2119 netdev_info(netdev, 2120 "Changing Tx descriptor count from %d to %d.\n", 2121 vsi->tx_rings[0]->count, new_tx_count); 2122 tx_rings = kcalloc(tx_alloc_queue_pairs, 2123 sizeof(struct i40e_ring), GFP_KERNEL); 2124 if (!tx_rings) { 2125 err = -ENOMEM; 2126 goto done; 2127 } 2128 2129 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2130 if (!i40e_active_tx_ring_index(vsi, i)) 2131 continue; 2132 2133 tx_rings[i] = *vsi->tx_rings[i]; 2134 tx_rings[i].count = new_tx_count; 2135 /* the desc and bi pointers will be reallocated in the 2136 * setup call 2137 */ 2138 tx_rings[i].desc = NULL; 2139 tx_rings[i].rx_bi = NULL; 2140 err = i40e_setup_tx_descriptors(&tx_rings[i]); 2141 if (err) { 2142 while (i) { 2143 i--; 2144 if (!i40e_active_tx_ring_index(vsi, i)) 2145 continue; 2146 i40e_free_tx_resources(&tx_rings[i]); 2147 } 2148 kfree(tx_rings); 2149 tx_rings = NULL; 2150 2151 goto done; 2152 } 2153 } 2154 } 2155 2156 /* alloc updated Rx resources */ 2157 if (new_rx_count != vsi->rx_rings[0]->count) { 2158 netdev_info(netdev, 2159 "Changing Rx descriptor count from %d to %d\n", 2160 vsi->rx_rings[0]->count, new_rx_count); 2161 rx_rings = kcalloc(vsi->alloc_queue_pairs, 2162 sizeof(struct i40e_ring), GFP_KERNEL); 2163 if (!rx_rings) { 2164 err = -ENOMEM; 2165 goto free_tx; 2166 } 2167 2168 for (i = 0; i < vsi->num_queue_pairs; i++) { 2169 u16 unused; 2170 2171 /* clone ring and setup updated count */ 2172 rx_rings[i] = *vsi->rx_rings[i]; 2173 rx_rings[i].count = new_rx_count; 2174 /* the desc and bi pointers will be reallocated in the 2175 * setup call 2176 */ 2177 rx_rings[i].desc = NULL; 2178 rx_rings[i].rx_bi = NULL; 2179 /* Clear cloned XDP RX-queue info before setup call */ 2180 memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq)); 2181 /* this is to allow wr32 to have something to write to 2182 * during early allocation of Rx buffers 2183 */ 2184 rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS; 2185 err = i40e_setup_rx_descriptors(&rx_rings[i]); 2186 if (err) 2187 goto rx_unwind; 2188 2189 /* now allocate the Rx buffers to make sure the OS 2190 * has enough memory, any failure here means abort 2191 */ 2192 unused = I40E_DESC_UNUSED(&rx_rings[i]); 2193 err = i40e_alloc_rx_buffers(&rx_rings[i], unused); 2194 rx_unwind: 2195 if (err) { 2196 do { 2197 i40e_free_rx_resources(&rx_rings[i]); 2198 } while (i--); 2199 kfree(rx_rings); 2200 rx_rings = NULL; 2201 2202 goto free_tx; 2203 } 2204 } 2205 } 2206 2207 /* Bring interface down, copy in the new ring info, 2208 * then restore the interface 2209 */ 2210 i40e_down(vsi); 2211 2212 if (tx_rings) { 2213 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2214 if (i40e_active_tx_ring_index(vsi, i)) { 2215 i40e_free_tx_resources(vsi->tx_rings[i]); 2216 *vsi->tx_rings[i] = tx_rings[i]; 2217 } 2218 } 2219 kfree(tx_rings); 2220 tx_rings = NULL; 2221 } 2222 2223 if (rx_rings) { 2224 for (i = 0; i < vsi->num_queue_pairs; i++) { 2225 i40e_free_rx_resources(vsi->rx_rings[i]); 2226 /* get the real tail offset */ 2227 rx_rings[i].tail = vsi->rx_rings[i]->tail; 2228 /* this is to fake out the allocation routine 2229 * into thinking it has to realloc everything 2230 * but the recycling logic will let us re-use 2231 * the buffers allocated above 2232 */ 2233 rx_rings[i].next_to_use = 0; 2234 rx_rings[i].next_to_clean = 0; 2235 rx_rings[i].next_to_alloc = 0; 2236 /* do a struct copy */ 2237 *vsi->rx_rings[i] = rx_rings[i]; 2238 } 2239 kfree(rx_rings); 2240 rx_rings = NULL; 2241 } 2242 2243 vsi->num_tx_desc = new_tx_count; 2244 vsi->num_rx_desc = new_rx_count; 2245 i40e_up(vsi); 2246 2247 free_tx: 2248 /* error cleanup if the Rx allocations failed after getting Tx */ 2249 if (tx_rings) { 2250 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2251 if (i40e_active_tx_ring_index(vsi, i)) 2252 i40e_free_tx_resources(vsi->tx_rings[i]); 2253 } 2254 kfree(tx_rings); 2255 tx_rings = NULL; 2256 } 2257 2258 done: 2259 clear_bit(__I40E_CONFIG_BUSY, pf->state); 2260 2261 return err; 2262 } 2263 2264 /** 2265 * i40e_get_stats_count - return the stats count for a device 2266 * @netdev: the netdev to return the count for 2267 * 2268 * Returns the total number of statistics for this netdev. Note that even 2269 * though this is a function, it is required that the count for a specific 2270 * netdev must never change. Basing the count on static values such as the 2271 * maximum number of queues or the device type is ok. However, the API for 2272 * obtaining stats is *not* safe against changes based on non-static 2273 * values such as the *current* number of queues, or runtime flags. 2274 * 2275 * If a statistic is not always enabled, return it as part of the count 2276 * anyways, always return its string, and report its value as zero. 2277 **/ 2278 static int i40e_get_stats_count(struct net_device *netdev) 2279 { 2280 struct i40e_netdev_priv *np = netdev_priv(netdev); 2281 struct i40e_vsi *vsi = np->vsi; 2282 struct i40e_pf *pf = vsi->back; 2283 int stats_len; 2284 2285 if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1) 2286 stats_len = I40E_PF_STATS_LEN; 2287 else 2288 stats_len = I40E_VSI_STATS_LEN; 2289 2290 /* The number of stats reported for a given net_device must remain 2291 * constant throughout the life of that device. 2292 * 2293 * This is because the API for obtaining the size, strings, and stats 2294 * is spread out over three separate ethtool ioctls. There is no safe 2295 * way to lock the number of stats across these calls, so we must 2296 * assume that they will never change. 2297 * 2298 * Due to this, we report the maximum number of queues, even if not 2299 * every queue is currently configured. Since we always allocate 2300 * queues in pairs, we'll just use netdev->num_tx_queues * 2. This 2301 * works because the num_tx_queues is set at device creation and never 2302 * changes. 2303 */ 2304 stats_len += I40E_QUEUE_STATS_LEN * 2 * netdev->num_tx_queues; 2305 2306 return stats_len; 2307 } 2308 2309 static int i40e_get_sset_count(struct net_device *netdev, int sset) 2310 { 2311 struct i40e_netdev_priv *np = netdev_priv(netdev); 2312 struct i40e_vsi *vsi = np->vsi; 2313 struct i40e_pf *pf = vsi->back; 2314 2315 switch (sset) { 2316 case ETH_SS_TEST: 2317 return I40E_TEST_LEN; 2318 case ETH_SS_STATS: 2319 return i40e_get_stats_count(netdev); 2320 case ETH_SS_PRIV_FLAGS: 2321 return I40E_PRIV_FLAGS_STR_LEN + 2322 (pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0); 2323 default: 2324 return -EOPNOTSUPP; 2325 } 2326 } 2327 2328 /** 2329 * i40e_get_veb_tc_stats - copy VEB TC statistics to formatted structure 2330 * @tc: the TC statistics in VEB structure (veb->tc_stats) 2331 * @i: the index of traffic class in (veb->tc_stats) structure to copy 2332 * 2333 * Copy VEB TC statistics from structure of arrays (veb->tc_stats) to 2334 * one dimensional structure i40e_cp_veb_tc_stats. 2335 * Produce formatted i40e_cp_veb_tc_stats structure of the VEB TC 2336 * statistics for the given TC. 2337 **/ 2338 static struct i40e_cp_veb_tc_stats 2339 i40e_get_veb_tc_stats(struct i40e_veb_tc_stats *tc, unsigned int i) 2340 { 2341 struct i40e_cp_veb_tc_stats veb_tc = { 2342 .tc_rx_packets = tc->tc_rx_packets[i], 2343 .tc_rx_bytes = tc->tc_rx_bytes[i], 2344 .tc_tx_packets = tc->tc_tx_packets[i], 2345 .tc_tx_bytes = tc->tc_tx_bytes[i], 2346 }; 2347 2348 return veb_tc; 2349 } 2350 2351 /** 2352 * i40e_get_pfc_stats - copy HW PFC statistics to formatted structure 2353 * @pf: the PF device structure 2354 * @i: the priority value to copy 2355 * 2356 * The PFC stats are found as arrays in pf->stats, which is not easy to pass 2357 * into i40e_add_ethtool_stats. Produce a formatted i40e_pfc_stats structure 2358 * of the PFC stats for the given priority. 2359 **/ 2360 static inline struct i40e_pfc_stats 2361 i40e_get_pfc_stats(struct i40e_pf *pf, unsigned int i) 2362 { 2363 #define I40E_GET_PFC_STAT(stat, priority) \ 2364 .stat = pf->stats.stat[priority] 2365 2366 struct i40e_pfc_stats pfc = { 2367 I40E_GET_PFC_STAT(priority_xon_rx, i), 2368 I40E_GET_PFC_STAT(priority_xoff_rx, i), 2369 I40E_GET_PFC_STAT(priority_xon_tx, i), 2370 I40E_GET_PFC_STAT(priority_xoff_tx, i), 2371 I40E_GET_PFC_STAT(priority_xon_2_xoff, i), 2372 }; 2373 return pfc; 2374 } 2375 2376 /** 2377 * i40e_get_ethtool_stats - copy stat values into supplied buffer 2378 * @netdev: the netdev to collect stats for 2379 * @stats: ethtool stats command structure 2380 * @data: ethtool supplied buffer 2381 * 2382 * Copy the stats values for this netdev into the buffer. Expects data to be 2383 * pre-allocated to the size returned by i40e_get_stats_count.. Note that all 2384 * statistics must be copied in a static order, and the count must not change 2385 * for a given netdev. See i40e_get_stats_count for more details. 2386 * 2387 * If a statistic is not currently valid (such as a disabled queue), this 2388 * function reports its value as zero. 2389 **/ 2390 static void i40e_get_ethtool_stats(struct net_device *netdev, 2391 struct ethtool_stats *stats, u64 *data) 2392 { 2393 struct i40e_netdev_priv *np = netdev_priv(netdev); 2394 struct i40e_vsi *vsi = np->vsi; 2395 struct i40e_pf *pf = vsi->back; 2396 struct i40e_veb *veb = NULL; 2397 unsigned int i; 2398 bool veb_stats; 2399 u64 *p = data; 2400 2401 i40e_update_stats(vsi); 2402 2403 i40e_add_ethtool_stats(&data, i40e_get_vsi_stats_struct(vsi), 2404 i40e_gstrings_net_stats); 2405 2406 i40e_add_ethtool_stats(&data, vsi, i40e_gstrings_misc_stats); 2407 2408 rcu_read_lock(); 2409 for (i = 0; i < netdev->num_tx_queues; i++) { 2410 i40e_add_queue_stats(&data, READ_ONCE(vsi->tx_rings[i])); 2411 i40e_add_queue_stats(&data, READ_ONCE(vsi->rx_rings[i])); 2412 } 2413 rcu_read_unlock(); 2414 2415 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1) 2416 goto check_data_pointer; 2417 2418 veb_stats = ((pf->lan_veb != I40E_NO_VEB) && 2419 (pf->lan_veb < I40E_MAX_VEB) && 2420 (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)); 2421 2422 if (veb_stats) { 2423 veb = pf->veb[pf->lan_veb]; 2424 i40e_update_veb_stats(veb); 2425 } 2426 2427 /* If veb stats aren't enabled, pass NULL instead of the veb so that 2428 * we initialize stats to zero and update the data pointer 2429 * intelligently 2430 */ 2431 i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL, 2432 i40e_gstrings_veb_stats); 2433 2434 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) 2435 if (veb_stats) { 2436 struct i40e_cp_veb_tc_stats veb_tc = 2437 i40e_get_veb_tc_stats(&veb->tc_stats, i); 2438 2439 i40e_add_ethtool_stats(&data, &veb_tc, 2440 i40e_gstrings_veb_tc_stats); 2441 } else { 2442 i40e_add_ethtool_stats(&data, NULL, 2443 i40e_gstrings_veb_tc_stats); 2444 } 2445 2446 i40e_add_ethtool_stats(&data, pf, i40e_gstrings_stats); 2447 2448 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { 2449 struct i40e_pfc_stats pfc = i40e_get_pfc_stats(pf, i); 2450 2451 i40e_add_ethtool_stats(&data, &pfc, i40e_gstrings_pfc_stats); 2452 } 2453 2454 check_data_pointer: 2455 WARN_ONCE(data - p != i40e_get_stats_count(netdev), 2456 "ethtool stats count mismatch!"); 2457 } 2458 2459 /** 2460 * i40e_get_stat_strings - copy stat strings into supplied buffer 2461 * @netdev: the netdev to collect strings for 2462 * @data: supplied buffer to copy strings into 2463 * 2464 * Copy the strings related to stats for this netdev. Expects data to be 2465 * pre-allocated with the size reported by i40e_get_stats_count. Note that the 2466 * strings must be copied in a static order and the total count must not 2467 * change for a given netdev. See i40e_get_stats_count for more details. 2468 **/ 2469 static void i40e_get_stat_strings(struct net_device *netdev, u8 *data) 2470 { 2471 struct i40e_netdev_priv *np = netdev_priv(netdev); 2472 struct i40e_vsi *vsi = np->vsi; 2473 struct i40e_pf *pf = vsi->back; 2474 unsigned int i; 2475 u8 *p = data; 2476 2477 i40e_add_stat_strings(&data, i40e_gstrings_net_stats); 2478 2479 i40e_add_stat_strings(&data, i40e_gstrings_misc_stats); 2480 2481 for (i = 0; i < netdev->num_tx_queues; i++) { 2482 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, 2483 "tx", i); 2484 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, 2485 "rx", i); 2486 } 2487 2488 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1) 2489 goto check_data_pointer; 2490 2491 i40e_add_stat_strings(&data, i40e_gstrings_veb_stats); 2492 2493 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) 2494 i40e_add_stat_strings(&data, i40e_gstrings_veb_tc_stats, i); 2495 2496 i40e_add_stat_strings(&data, i40e_gstrings_stats); 2497 2498 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) 2499 i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i); 2500 2501 check_data_pointer: 2502 WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN, 2503 "stat strings count mismatch!"); 2504 } 2505 2506 static void i40e_get_priv_flag_strings(struct net_device *netdev, u8 *data) 2507 { 2508 struct i40e_netdev_priv *np = netdev_priv(netdev); 2509 struct i40e_vsi *vsi = np->vsi; 2510 struct i40e_pf *pf = vsi->back; 2511 unsigned int i; 2512 u8 *p = data; 2513 2514 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) 2515 ethtool_sprintf(&p, i40e_gstrings_priv_flags[i].flag_string); 2516 if (pf->hw.pf_id != 0) 2517 return; 2518 for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++) 2519 ethtool_sprintf(&p, i40e_gl_gstrings_priv_flags[i].flag_string); 2520 } 2521 2522 static void i40e_get_strings(struct net_device *netdev, u32 stringset, 2523 u8 *data) 2524 { 2525 switch (stringset) { 2526 case ETH_SS_TEST: 2527 memcpy(data, i40e_gstrings_test, 2528 I40E_TEST_LEN * ETH_GSTRING_LEN); 2529 break; 2530 case ETH_SS_STATS: 2531 i40e_get_stat_strings(netdev, data); 2532 break; 2533 case ETH_SS_PRIV_FLAGS: 2534 i40e_get_priv_flag_strings(netdev, data); 2535 break; 2536 default: 2537 break; 2538 } 2539 } 2540 2541 static int i40e_get_ts_info(struct net_device *dev, 2542 struct ethtool_ts_info *info) 2543 { 2544 struct i40e_pf *pf = i40e_netdev_to_pf(dev); 2545 2546 /* only report HW timestamping if PTP is enabled */ 2547 if (!(pf->flags & I40E_FLAG_PTP)) 2548 return ethtool_op_get_ts_info(dev, info); 2549 2550 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | 2551 SOF_TIMESTAMPING_RX_SOFTWARE | 2552 SOF_TIMESTAMPING_SOFTWARE | 2553 SOF_TIMESTAMPING_TX_HARDWARE | 2554 SOF_TIMESTAMPING_RX_HARDWARE | 2555 SOF_TIMESTAMPING_RAW_HARDWARE; 2556 2557 if (pf->ptp_clock) 2558 info->phc_index = ptp_clock_index(pf->ptp_clock); 2559 else 2560 info->phc_index = -1; 2561 2562 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON); 2563 2564 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | 2565 BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) | 2566 BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) | 2567 BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ); 2568 2569 if (pf->hw_features & I40E_HW_PTP_L4_CAPABLE) 2570 info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) | 2571 BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) | 2572 BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) | 2573 BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) | 2574 BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) | 2575 BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) | 2576 BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) | 2577 BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ); 2578 2579 return 0; 2580 } 2581 2582 static u64 i40e_link_test(struct net_device *netdev, u64 *data) 2583 { 2584 struct i40e_netdev_priv *np = netdev_priv(netdev); 2585 struct i40e_pf *pf = np->vsi->back; 2586 i40e_status status; 2587 bool link_up = false; 2588 2589 netif_info(pf, hw, netdev, "link test\n"); 2590 status = i40e_get_link_status(&pf->hw, &link_up); 2591 if (status) { 2592 netif_err(pf, drv, netdev, "link query timed out, please retry test\n"); 2593 *data = 1; 2594 return *data; 2595 } 2596 2597 if (link_up) 2598 *data = 0; 2599 else 2600 *data = 1; 2601 2602 return *data; 2603 } 2604 2605 static u64 i40e_reg_test(struct net_device *netdev, u64 *data) 2606 { 2607 struct i40e_netdev_priv *np = netdev_priv(netdev); 2608 struct i40e_pf *pf = np->vsi->back; 2609 2610 netif_info(pf, hw, netdev, "register test\n"); 2611 *data = i40e_diag_reg_test(&pf->hw); 2612 2613 return *data; 2614 } 2615 2616 static u64 i40e_eeprom_test(struct net_device *netdev, u64 *data) 2617 { 2618 struct i40e_netdev_priv *np = netdev_priv(netdev); 2619 struct i40e_pf *pf = np->vsi->back; 2620 2621 netif_info(pf, hw, netdev, "eeprom test\n"); 2622 *data = i40e_diag_eeprom_test(&pf->hw); 2623 2624 /* forcebly clear the NVM Update state machine */ 2625 pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT; 2626 2627 return *data; 2628 } 2629 2630 static u64 i40e_intr_test(struct net_device *netdev, u64 *data) 2631 { 2632 struct i40e_netdev_priv *np = netdev_priv(netdev); 2633 struct i40e_pf *pf = np->vsi->back; 2634 u16 swc_old = pf->sw_int_count; 2635 2636 netif_info(pf, hw, netdev, "interrupt test\n"); 2637 wr32(&pf->hw, I40E_PFINT_DYN_CTL0, 2638 (I40E_PFINT_DYN_CTL0_INTENA_MASK | 2639 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK | 2640 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK | 2641 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK | 2642 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK)); 2643 usleep_range(1000, 2000); 2644 *data = (swc_old == pf->sw_int_count); 2645 2646 return *data; 2647 } 2648 2649 static inline bool i40e_active_vfs(struct i40e_pf *pf) 2650 { 2651 struct i40e_vf *vfs = pf->vf; 2652 int i; 2653 2654 for (i = 0; i < pf->num_alloc_vfs; i++) 2655 if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states)) 2656 return true; 2657 return false; 2658 } 2659 2660 static inline bool i40e_active_vmdqs(struct i40e_pf *pf) 2661 { 2662 return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2); 2663 } 2664 2665 static void i40e_diag_test(struct net_device *netdev, 2666 struct ethtool_test *eth_test, u64 *data) 2667 { 2668 struct i40e_netdev_priv *np = netdev_priv(netdev); 2669 bool if_running = netif_running(netdev); 2670 struct i40e_pf *pf = np->vsi->back; 2671 2672 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 2673 /* Offline tests */ 2674 netif_info(pf, drv, netdev, "offline testing starting\n"); 2675 2676 set_bit(__I40E_TESTING, pf->state); 2677 2678 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 2679 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) { 2680 dev_warn(&pf->pdev->dev, 2681 "Cannot start offline testing when PF is in reset state.\n"); 2682 goto skip_ol_tests; 2683 } 2684 2685 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) { 2686 dev_warn(&pf->pdev->dev, 2687 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n"); 2688 goto skip_ol_tests; 2689 } 2690 2691 /* If the device is online then take it offline */ 2692 if (if_running) 2693 /* indicate we're in test mode */ 2694 i40e_close(netdev); 2695 else 2696 /* This reset does not affect link - if it is 2697 * changed to a type of reset that does affect 2698 * link then the following link test would have 2699 * to be moved to before the reset 2700 */ 2701 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 2702 2703 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 2704 eth_test->flags |= ETH_TEST_FL_FAILED; 2705 2706 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM])) 2707 eth_test->flags |= ETH_TEST_FL_FAILED; 2708 2709 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR])) 2710 eth_test->flags |= ETH_TEST_FL_FAILED; 2711 2712 /* run reg test last, a reset is required after it */ 2713 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG])) 2714 eth_test->flags |= ETH_TEST_FL_FAILED; 2715 2716 clear_bit(__I40E_TESTING, pf->state); 2717 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 2718 2719 if (if_running) 2720 i40e_open(netdev); 2721 } else { 2722 /* Online tests */ 2723 netif_info(pf, drv, netdev, "online testing starting\n"); 2724 2725 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 2726 eth_test->flags |= ETH_TEST_FL_FAILED; 2727 2728 /* Offline only tests, not run in online; pass by default */ 2729 data[I40E_ETH_TEST_REG] = 0; 2730 data[I40E_ETH_TEST_EEPROM] = 0; 2731 data[I40E_ETH_TEST_INTR] = 0; 2732 } 2733 2734 netif_info(pf, drv, netdev, "testing finished\n"); 2735 return; 2736 2737 skip_ol_tests: 2738 data[I40E_ETH_TEST_REG] = 1; 2739 data[I40E_ETH_TEST_EEPROM] = 1; 2740 data[I40E_ETH_TEST_INTR] = 1; 2741 data[I40E_ETH_TEST_LINK] = 1; 2742 eth_test->flags |= ETH_TEST_FL_FAILED; 2743 clear_bit(__I40E_TESTING, pf->state); 2744 netif_info(pf, drv, netdev, "testing failed\n"); 2745 } 2746 2747 static void i40e_get_wol(struct net_device *netdev, 2748 struct ethtool_wolinfo *wol) 2749 { 2750 struct i40e_netdev_priv *np = netdev_priv(netdev); 2751 struct i40e_pf *pf = np->vsi->back; 2752 struct i40e_hw *hw = &pf->hw; 2753 u16 wol_nvm_bits; 2754 2755 /* NVM bit on means WoL disabled for the port */ 2756 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 2757 if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) { 2758 wol->supported = 0; 2759 wol->wolopts = 0; 2760 } else { 2761 wol->supported = WAKE_MAGIC; 2762 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0); 2763 } 2764 } 2765 2766 /** 2767 * i40e_set_wol - set the WakeOnLAN configuration 2768 * @netdev: the netdev in question 2769 * @wol: the ethtool WoL setting data 2770 **/ 2771 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 2772 { 2773 struct i40e_netdev_priv *np = netdev_priv(netdev); 2774 struct i40e_pf *pf = np->vsi->back; 2775 struct i40e_vsi *vsi = np->vsi; 2776 struct i40e_hw *hw = &pf->hw; 2777 u16 wol_nvm_bits; 2778 2779 /* WoL not supported if this isn't the controlling PF on the port */ 2780 if (hw->partition_id != 1) { 2781 i40e_partition_setting_complaint(pf); 2782 return -EOPNOTSUPP; 2783 } 2784 2785 if (vsi != pf->vsi[pf->lan_vsi]) 2786 return -EOPNOTSUPP; 2787 2788 /* NVM bit on means WoL disabled for the port */ 2789 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 2790 if (BIT(hw->port) & wol_nvm_bits) 2791 return -EOPNOTSUPP; 2792 2793 /* only magic packet is supported */ 2794 if (wol->wolopts & ~WAKE_MAGIC) 2795 return -EOPNOTSUPP; 2796 2797 /* is this a new value? */ 2798 if (pf->wol_en != !!wol->wolopts) { 2799 pf->wol_en = !!wol->wolopts; 2800 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en); 2801 } 2802 2803 return 0; 2804 } 2805 2806 static int i40e_set_phys_id(struct net_device *netdev, 2807 enum ethtool_phys_id_state state) 2808 { 2809 struct i40e_netdev_priv *np = netdev_priv(netdev); 2810 i40e_status ret = 0; 2811 struct i40e_pf *pf = np->vsi->back; 2812 struct i40e_hw *hw = &pf->hw; 2813 int blink_freq = 2; 2814 u16 temp_status; 2815 2816 switch (state) { 2817 case ETHTOOL_ID_ACTIVE: 2818 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) { 2819 pf->led_status = i40e_led_get(hw); 2820 } else { 2821 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) 2822 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL, 2823 NULL); 2824 ret = i40e_led_get_phy(hw, &temp_status, 2825 &pf->phy_led_val); 2826 pf->led_status = temp_status; 2827 } 2828 return blink_freq; 2829 case ETHTOOL_ID_ON: 2830 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) 2831 i40e_led_set(hw, 0xf, false); 2832 else 2833 ret = i40e_led_set_phy(hw, true, pf->led_status, 0); 2834 break; 2835 case ETHTOOL_ID_OFF: 2836 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) 2837 i40e_led_set(hw, 0x0, false); 2838 else 2839 ret = i40e_led_set_phy(hw, false, pf->led_status, 0); 2840 break; 2841 case ETHTOOL_ID_INACTIVE: 2842 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) { 2843 i40e_led_set(hw, pf->led_status, false); 2844 } else { 2845 ret = i40e_led_set_phy(hw, false, pf->led_status, 2846 (pf->phy_led_val | 2847 I40E_PHY_LED_MODE_ORIG)); 2848 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) 2849 i40e_aq_set_phy_debug(hw, 0, NULL); 2850 } 2851 break; 2852 default: 2853 break; 2854 } 2855 if (ret) 2856 return -ENOENT; 2857 else 2858 return 0; 2859 } 2860 2861 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt 2862 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also 2863 * 125us (8000 interrupts per second) == ITR(62) 2864 */ 2865 2866 /** 2867 * __i40e_get_coalesce - get per-queue coalesce settings 2868 * @netdev: the netdev to check 2869 * @ec: ethtool coalesce data structure 2870 * @queue: which queue to pick 2871 * 2872 * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs 2873 * are per queue. If queue is <0 then we default to queue 0 as the 2874 * representative value. 2875 **/ 2876 static int __i40e_get_coalesce(struct net_device *netdev, 2877 struct ethtool_coalesce *ec, 2878 int queue) 2879 { 2880 struct i40e_netdev_priv *np = netdev_priv(netdev); 2881 struct i40e_ring *rx_ring, *tx_ring; 2882 struct i40e_vsi *vsi = np->vsi; 2883 2884 ec->tx_max_coalesced_frames_irq = vsi->work_limit; 2885 ec->rx_max_coalesced_frames_irq = vsi->work_limit; 2886 2887 /* rx and tx usecs has per queue value. If user doesn't specify the 2888 * queue, return queue 0's value to represent. 2889 */ 2890 if (queue < 0) 2891 queue = 0; 2892 else if (queue >= vsi->num_queue_pairs) 2893 return -EINVAL; 2894 2895 rx_ring = vsi->rx_rings[queue]; 2896 tx_ring = vsi->tx_rings[queue]; 2897 2898 if (ITR_IS_DYNAMIC(rx_ring->itr_setting)) 2899 ec->use_adaptive_rx_coalesce = 1; 2900 2901 if (ITR_IS_DYNAMIC(tx_ring->itr_setting)) 2902 ec->use_adaptive_tx_coalesce = 1; 2903 2904 ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC; 2905 ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC; 2906 2907 /* we use the _usecs_high to store/set the interrupt rate limit 2908 * that the hardware supports, that almost but not quite 2909 * fits the original intent of the ethtool variable, 2910 * the rx_coalesce_usecs_high limits total interrupts 2911 * per second from both tx/rx sources. 2912 */ 2913 ec->rx_coalesce_usecs_high = vsi->int_rate_limit; 2914 ec->tx_coalesce_usecs_high = vsi->int_rate_limit; 2915 2916 return 0; 2917 } 2918 2919 /** 2920 * i40e_get_coalesce - get a netdev's coalesce settings 2921 * @netdev: the netdev to check 2922 * @ec: ethtool coalesce data structure 2923 * @kernel_coal: ethtool CQE mode setting structure 2924 * @extack: extack for reporting error messages 2925 * 2926 * Gets the coalesce settings for a particular netdev. Note that if user has 2927 * modified per-queue settings, this only guarantees to represent queue 0. See 2928 * __i40e_get_coalesce for more details. 2929 **/ 2930 static int i40e_get_coalesce(struct net_device *netdev, 2931 struct ethtool_coalesce *ec, 2932 struct kernel_ethtool_coalesce *kernel_coal, 2933 struct netlink_ext_ack *extack) 2934 { 2935 return __i40e_get_coalesce(netdev, ec, -1); 2936 } 2937 2938 /** 2939 * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue 2940 * @netdev: netdev structure 2941 * @ec: ethtool's coalesce settings 2942 * @queue: the particular queue to read 2943 * 2944 * Will read a specific queue's coalesce settings 2945 **/ 2946 static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue, 2947 struct ethtool_coalesce *ec) 2948 { 2949 return __i40e_get_coalesce(netdev, ec, queue); 2950 } 2951 2952 /** 2953 * i40e_set_itr_per_queue - set ITR values for specific queue 2954 * @vsi: the VSI to set values for 2955 * @ec: coalesce settings from ethtool 2956 * @queue: the queue to modify 2957 * 2958 * Change the ITR settings for a specific queue. 2959 **/ 2960 static void i40e_set_itr_per_queue(struct i40e_vsi *vsi, 2961 struct ethtool_coalesce *ec, 2962 int queue) 2963 { 2964 struct i40e_ring *rx_ring = vsi->rx_rings[queue]; 2965 struct i40e_ring *tx_ring = vsi->tx_rings[queue]; 2966 struct i40e_pf *pf = vsi->back; 2967 struct i40e_hw *hw = &pf->hw; 2968 struct i40e_q_vector *q_vector; 2969 u16 intrl; 2970 2971 intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit); 2972 2973 rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs); 2974 tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs); 2975 2976 if (ec->use_adaptive_rx_coalesce) 2977 rx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2978 else 2979 rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2980 2981 if (ec->use_adaptive_tx_coalesce) 2982 tx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2983 else 2984 tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2985 2986 q_vector = rx_ring->q_vector; 2987 q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting); 2988 2989 q_vector = tx_ring->q_vector; 2990 q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting); 2991 2992 /* The interrupt handler itself will take care of programming 2993 * the Tx and Rx ITR values based on the values we have entered 2994 * into the q_vector, no need to write the values now. 2995 */ 2996 2997 wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl); 2998 i40e_flush(hw); 2999 } 3000 3001 /** 3002 * __i40e_set_coalesce - set coalesce settings for particular queue 3003 * @netdev: the netdev to change 3004 * @ec: ethtool coalesce settings 3005 * @queue: the queue to change 3006 * 3007 * Sets the coalesce settings for a particular queue. 3008 **/ 3009 static int __i40e_set_coalesce(struct net_device *netdev, 3010 struct ethtool_coalesce *ec, 3011 int queue) 3012 { 3013 struct i40e_netdev_priv *np = netdev_priv(netdev); 3014 u16 intrl_reg, cur_rx_itr, cur_tx_itr; 3015 struct i40e_vsi *vsi = np->vsi; 3016 struct i40e_pf *pf = vsi->back; 3017 int i; 3018 3019 if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq) 3020 vsi->work_limit = ec->tx_max_coalesced_frames_irq; 3021 3022 if (queue < 0) { 3023 cur_rx_itr = vsi->rx_rings[0]->itr_setting; 3024 cur_tx_itr = vsi->tx_rings[0]->itr_setting; 3025 } else if (queue < vsi->num_queue_pairs) { 3026 cur_rx_itr = vsi->rx_rings[queue]->itr_setting; 3027 cur_tx_itr = vsi->tx_rings[queue]->itr_setting; 3028 } else { 3029 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n", 3030 vsi->num_queue_pairs - 1); 3031 return -EINVAL; 3032 } 3033 3034 cur_tx_itr &= ~I40E_ITR_DYNAMIC; 3035 cur_rx_itr &= ~I40E_ITR_DYNAMIC; 3036 3037 /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */ 3038 if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) { 3039 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n"); 3040 return -EINVAL; 3041 } 3042 3043 if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) { 3044 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n", 3045 INTRL_REG_TO_USEC(I40E_MAX_INTRL)); 3046 return -EINVAL; 3047 } 3048 3049 if (ec->rx_coalesce_usecs != cur_rx_itr && 3050 ec->use_adaptive_rx_coalesce) { 3051 netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n"); 3052 return -EINVAL; 3053 } 3054 3055 if (ec->rx_coalesce_usecs > I40E_MAX_ITR) { 3056 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n"); 3057 return -EINVAL; 3058 } 3059 3060 if (ec->tx_coalesce_usecs != cur_tx_itr && 3061 ec->use_adaptive_tx_coalesce) { 3062 netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n"); 3063 return -EINVAL; 3064 } 3065 3066 if (ec->tx_coalesce_usecs > I40E_MAX_ITR) { 3067 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n"); 3068 return -EINVAL; 3069 } 3070 3071 if (ec->use_adaptive_rx_coalesce && !cur_rx_itr) 3072 ec->rx_coalesce_usecs = I40E_MIN_ITR; 3073 3074 if (ec->use_adaptive_tx_coalesce && !cur_tx_itr) 3075 ec->tx_coalesce_usecs = I40E_MIN_ITR; 3076 3077 intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high); 3078 vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg); 3079 if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) { 3080 netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n", 3081 vsi->int_rate_limit); 3082 } 3083 3084 /* rx and tx usecs has per queue value. If user doesn't specify the 3085 * queue, apply to all queues. 3086 */ 3087 if (queue < 0) { 3088 for (i = 0; i < vsi->num_queue_pairs; i++) 3089 i40e_set_itr_per_queue(vsi, ec, i); 3090 } else { 3091 i40e_set_itr_per_queue(vsi, ec, queue); 3092 } 3093 3094 return 0; 3095 } 3096 3097 /** 3098 * i40e_set_coalesce - set coalesce settings for every queue on the netdev 3099 * @netdev: the netdev to change 3100 * @ec: ethtool coalesce settings 3101 * @kernel_coal: ethtool CQE mode setting structure 3102 * @extack: extack for reporting error messages 3103 * 3104 * This will set each queue to the same coalesce settings. 3105 **/ 3106 static int i40e_set_coalesce(struct net_device *netdev, 3107 struct ethtool_coalesce *ec, 3108 struct kernel_ethtool_coalesce *kernel_coal, 3109 struct netlink_ext_ack *extack) 3110 { 3111 return __i40e_set_coalesce(netdev, ec, -1); 3112 } 3113 3114 /** 3115 * i40e_set_per_queue_coalesce - set specific queue's coalesce settings 3116 * @netdev: the netdev to change 3117 * @ec: ethtool's coalesce settings 3118 * @queue: the queue to change 3119 * 3120 * Sets the specified queue's coalesce settings. 3121 **/ 3122 static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue, 3123 struct ethtool_coalesce *ec) 3124 { 3125 return __i40e_set_coalesce(netdev, ec, queue); 3126 } 3127 3128 /** 3129 * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type 3130 * @pf: pointer to the physical function struct 3131 * @cmd: ethtool rxnfc command 3132 * 3133 * Returns Success if the flow is supported, else Invalid Input. 3134 **/ 3135 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd) 3136 { 3137 struct i40e_hw *hw = &pf->hw; 3138 u8 flow_pctype = 0; 3139 u64 i_set = 0; 3140 3141 cmd->data = 0; 3142 3143 switch (cmd->flow_type) { 3144 case TCP_V4_FLOW: 3145 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3146 break; 3147 case UDP_V4_FLOW: 3148 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3149 break; 3150 case TCP_V6_FLOW: 3151 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3152 break; 3153 case UDP_V6_FLOW: 3154 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3155 break; 3156 case SCTP_V4_FLOW: 3157 case AH_ESP_V4_FLOW: 3158 case AH_V4_FLOW: 3159 case ESP_V4_FLOW: 3160 case IPV4_FLOW: 3161 case SCTP_V6_FLOW: 3162 case AH_ESP_V6_FLOW: 3163 case AH_V6_FLOW: 3164 case ESP_V6_FLOW: 3165 case IPV6_FLOW: 3166 /* Default is src/dest for IP, no matter the L4 hashing */ 3167 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 3168 break; 3169 default: 3170 return -EINVAL; 3171 } 3172 3173 /* Read flow based hash input set register */ 3174 if (flow_pctype) { 3175 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, 3176 flow_pctype)) | 3177 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, 3178 flow_pctype)) << 32); 3179 } 3180 3181 /* Process bits of hash input set */ 3182 if (i_set) { 3183 if (i_set & I40E_L4_SRC_MASK) 3184 cmd->data |= RXH_L4_B_0_1; 3185 if (i_set & I40E_L4_DST_MASK) 3186 cmd->data |= RXH_L4_B_2_3; 3187 3188 if (cmd->flow_type == TCP_V4_FLOW || 3189 cmd->flow_type == UDP_V4_FLOW) { 3190 if (hw->mac.type == I40E_MAC_X722) { 3191 if (i_set & I40E_X722_L3_SRC_MASK) 3192 cmd->data |= RXH_IP_SRC; 3193 if (i_set & I40E_X722_L3_DST_MASK) 3194 cmd->data |= RXH_IP_DST; 3195 } else { 3196 if (i_set & I40E_L3_SRC_MASK) 3197 cmd->data |= RXH_IP_SRC; 3198 if (i_set & I40E_L3_DST_MASK) 3199 cmd->data |= RXH_IP_DST; 3200 } 3201 } else if (cmd->flow_type == TCP_V6_FLOW || 3202 cmd->flow_type == UDP_V6_FLOW) { 3203 if (i_set & I40E_L3_V6_SRC_MASK) 3204 cmd->data |= RXH_IP_SRC; 3205 if (i_set & I40E_L3_V6_DST_MASK) 3206 cmd->data |= RXH_IP_DST; 3207 } 3208 } 3209 3210 return 0; 3211 } 3212 3213 /** 3214 * i40e_check_mask - Check whether a mask field is set 3215 * @mask: the full mask value 3216 * @field: mask of the field to check 3217 * 3218 * If the given mask is fully set, return positive value. If the mask for the 3219 * field is fully unset, return zero. Otherwise return a negative error code. 3220 **/ 3221 static int i40e_check_mask(u64 mask, u64 field) 3222 { 3223 u64 value = mask & field; 3224 3225 if (value == field) 3226 return 1; 3227 else if (!value) 3228 return 0; 3229 else 3230 return -1; 3231 } 3232 3233 /** 3234 * i40e_parse_rx_flow_user_data - Deconstruct user-defined data 3235 * @fsp: pointer to rx flow specification 3236 * @data: pointer to userdef data structure for storage 3237 * 3238 * Read the user-defined data and deconstruct the value into a structure. No 3239 * other code should read the user-defined data, so as to ensure that every 3240 * place consistently reads the value correctly. 3241 * 3242 * The user-defined field is a 64bit Big Endian format value, which we 3243 * deconstruct by reading bits or bit fields from it. Single bit flags shall 3244 * be defined starting from the highest bits, while small bit field values 3245 * shall be defined starting from the lowest bits. 3246 * 3247 * Returns 0 if the data is valid, and non-zero if the userdef data is invalid 3248 * and the filter should be rejected. The data structure will always be 3249 * modified even if FLOW_EXT is not set. 3250 * 3251 **/ 3252 static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 3253 struct i40e_rx_flow_userdef *data) 3254 { 3255 u64 value, mask; 3256 int valid; 3257 3258 /* Zero memory first so it's always consistent. */ 3259 memset(data, 0, sizeof(*data)); 3260 3261 if (!(fsp->flow_type & FLOW_EXT)) 3262 return 0; 3263 3264 value = be64_to_cpu(*((__be64 *)fsp->h_ext.data)); 3265 mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data)); 3266 3267 #define I40E_USERDEF_FLEX_WORD GENMASK_ULL(15, 0) 3268 #define I40E_USERDEF_FLEX_OFFSET GENMASK_ULL(31, 16) 3269 #define I40E_USERDEF_FLEX_FILTER GENMASK_ULL(31, 0) 3270 3271 valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER); 3272 if (valid < 0) { 3273 return -EINVAL; 3274 } else if (valid) { 3275 data->flex_word = value & I40E_USERDEF_FLEX_WORD; 3276 data->flex_offset = 3277 (value & I40E_USERDEF_FLEX_OFFSET) >> 16; 3278 data->flex_filter = true; 3279 } 3280 3281 return 0; 3282 } 3283 3284 /** 3285 * i40e_fill_rx_flow_user_data - Fill in user-defined data field 3286 * @fsp: pointer to rx_flow specification 3287 * @data: pointer to return userdef data 3288 * 3289 * Reads the userdef data structure and properly fills in the user defined 3290 * fields of the rx_flow_spec. 3291 **/ 3292 static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 3293 struct i40e_rx_flow_userdef *data) 3294 { 3295 u64 value = 0, mask = 0; 3296 3297 if (data->flex_filter) { 3298 value |= data->flex_word; 3299 value |= (u64)data->flex_offset << 16; 3300 mask |= I40E_USERDEF_FLEX_FILTER; 3301 } 3302 3303 if (value || mask) 3304 fsp->flow_type |= FLOW_EXT; 3305 3306 *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value); 3307 *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask); 3308 } 3309 3310 /** 3311 * i40e_get_ethtool_fdir_all - Populates the rule count of a command 3312 * @pf: Pointer to the physical function struct 3313 * @cmd: The command to get or set Rx flow classification rules 3314 * @rule_locs: Array of used rule locations 3315 * 3316 * This function populates both the total and actual rule count of 3317 * the ethtool flow classification command 3318 * 3319 * Returns 0 on success or -EMSGSIZE if entry not found 3320 **/ 3321 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf, 3322 struct ethtool_rxnfc *cmd, 3323 u32 *rule_locs) 3324 { 3325 struct i40e_fdir_filter *rule; 3326 struct hlist_node *node2; 3327 int cnt = 0; 3328 3329 /* report total rule count */ 3330 cmd->data = i40e_get_fd_cnt_all(pf); 3331 3332 hlist_for_each_entry_safe(rule, node2, 3333 &pf->fdir_filter_list, fdir_node) { 3334 if (cnt == cmd->rule_cnt) 3335 return -EMSGSIZE; 3336 3337 rule_locs[cnt] = rule->fd_id; 3338 cnt++; 3339 } 3340 3341 cmd->rule_cnt = cnt; 3342 3343 return 0; 3344 } 3345 3346 /** 3347 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow 3348 * @pf: Pointer to the physical function struct 3349 * @cmd: The command to get or set Rx flow classification rules 3350 * 3351 * This function looks up a filter based on the Rx flow classification 3352 * command and fills the flow spec info for it if found 3353 * 3354 * Returns 0 on success or -EINVAL if filter not found 3355 **/ 3356 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf, 3357 struct ethtool_rxnfc *cmd) 3358 { 3359 struct ethtool_rx_flow_spec *fsp = 3360 (struct ethtool_rx_flow_spec *)&cmd->fs; 3361 struct i40e_rx_flow_userdef userdef = {0}; 3362 struct i40e_fdir_filter *rule = NULL; 3363 struct hlist_node *node2; 3364 u64 input_set; 3365 u16 index; 3366 3367 hlist_for_each_entry_safe(rule, node2, 3368 &pf->fdir_filter_list, fdir_node) { 3369 if (fsp->location <= rule->fd_id) 3370 break; 3371 } 3372 3373 if (!rule || fsp->location != rule->fd_id) 3374 return -EINVAL; 3375 3376 fsp->flow_type = rule->flow_type; 3377 if (fsp->flow_type == IP_USER_FLOW) { 3378 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4; 3379 fsp->h_u.usr_ip4_spec.proto = 0; 3380 fsp->m_u.usr_ip4_spec.proto = 0; 3381 } 3382 3383 if (fsp->flow_type == IPV6_USER_FLOW || 3384 fsp->flow_type == UDP_V6_FLOW || 3385 fsp->flow_type == TCP_V6_FLOW || 3386 fsp->flow_type == SCTP_V6_FLOW) { 3387 /* Reverse the src and dest notion, since the HW views them 3388 * from Tx perspective where as the user expects it from 3389 * Rx filter view. 3390 */ 3391 fsp->h_u.tcp_ip6_spec.psrc = rule->dst_port; 3392 fsp->h_u.tcp_ip6_spec.pdst = rule->src_port; 3393 memcpy(fsp->h_u.tcp_ip6_spec.ip6dst, rule->src_ip6, 3394 sizeof(__be32) * 4); 3395 memcpy(fsp->h_u.tcp_ip6_spec.ip6src, rule->dst_ip6, 3396 sizeof(__be32) * 4); 3397 } else { 3398 /* Reverse the src and dest notion, since the HW views them 3399 * from Tx perspective where as the user expects it from 3400 * Rx filter view. 3401 */ 3402 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port; 3403 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port; 3404 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip; 3405 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip; 3406 } 3407 3408 switch (rule->flow_type) { 3409 case SCTP_V4_FLOW: 3410 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP; 3411 break; 3412 case TCP_V4_FLOW: 3413 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3414 break; 3415 case UDP_V4_FLOW: 3416 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3417 break; 3418 case SCTP_V6_FLOW: 3419 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP; 3420 break; 3421 case TCP_V6_FLOW: 3422 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3423 break; 3424 case UDP_V6_FLOW: 3425 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3426 break; 3427 case IP_USER_FLOW: 3428 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER; 3429 break; 3430 case IPV6_USER_FLOW: 3431 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER; 3432 break; 3433 default: 3434 /* If we have stored a filter with a flow type not listed here 3435 * it is almost certainly a driver bug. WARN(), and then 3436 * assign the input_set as if all fields are enabled to avoid 3437 * reading unassigned memory. 3438 */ 3439 WARN(1, "Missing input set index for flow_type %d\n", 3440 rule->flow_type); 3441 input_set = 0xFFFFFFFFFFFFFFFFULL; 3442 goto no_input_set; 3443 } 3444 3445 input_set = i40e_read_fd_input_set(pf, index); 3446 3447 no_input_set: 3448 if (input_set & I40E_L3_V6_SRC_MASK) { 3449 fsp->m_u.tcp_ip6_spec.ip6src[0] = htonl(0xFFFFFFFF); 3450 fsp->m_u.tcp_ip6_spec.ip6src[1] = htonl(0xFFFFFFFF); 3451 fsp->m_u.tcp_ip6_spec.ip6src[2] = htonl(0xFFFFFFFF); 3452 fsp->m_u.tcp_ip6_spec.ip6src[3] = htonl(0xFFFFFFFF); 3453 } 3454 3455 if (input_set & I40E_L3_V6_DST_MASK) { 3456 fsp->m_u.tcp_ip6_spec.ip6dst[0] = htonl(0xFFFFFFFF); 3457 fsp->m_u.tcp_ip6_spec.ip6dst[1] = htonl(0xFFFFFFFF); 3458 fsp->m_u.tcp_ip6_spec.ip6dst[2] = htonl(0xFFFFFFFF); 3459 fsp->m_u.tcp_ip6_spec.ip6dst[3] = htonl(0xFFFFFFFF); 3460 } 3461 3462 if (input_set & I40E_L3_SRC_MASK) 3463 fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF); 3464 3465 if (input_set & I40E_L3_DST_MASK) 3466 fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF); 3467 3468 if (input_set & I40E_L4_SRC_MASK) 3469 fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF); 3470 3471 if (input_set & I40E_L4_DST_MASK) 3472 fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF); 3473 3474 if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET) 3475 fsp->ring_cookie = RX_CLS_FLOW_DISC; 3476 else 3477 fsp->ring_cookie = rule->q_index; 3478 3479 if (rule->vlan_tag) { 3480 fsp->h_ext.vlan_etype = rule->vlan_etype; 3481 fsp->m_ext.vlan_etype = htons(0xFFFF); 3482 fsp->h_ext.vlan_tci = rule->vlan_tag; 3483 fsp->m_ext.vlan_tci = htons(0xFFFF); 3484 fsp->flow_type |= FLOW_EXT; 3485 } 3486 3487 if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) { 3488 struct i40e_vsi *vsi; 3489 3490 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi); 3491 if (vsi && vsi->type == I40E_VSI_SRIOV) { 3492 /* VFs are zero-indexed by the driver, but ethtool 3493 * expects them to be one-indexed, so add one here 3494 */ 3495 u64 ring_vf = vsi->vf_id + 1; 3496 3497 ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF; 3498 fsp->ring_cookie |= ring_vf; 3499 } 3500 } 3501 3502 if (rule->flex_filter) { 3503 userdef.flex_filter = true; 3504 userdef.flex_word = be16_to_cpu(rule->flex_word); 3505 userdef.flex_offset = rule->flex_offset; 3506 } 3507 3508 i40e_fill_rx_flow_user_data(fsp, &userdef); 3509 3510 return 0; 3511 } 3512 3513 /** 3514 * i40e_get_rxnfc - command to get RX flow classification rules 3515 * @netdev: network interface device structure 3516 * @cmd: ethtool rxnfc command 3517 * @rule_locs: pointer to store rule data 3518 * 3519 * Returns Success if the command is supported. 3520 **/ 3521 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd, 3522 u32 *rule_locs) 3523 { 3524 struct i40e_netdev_priv *np = netdev_priv(netdev); 3525 struct i40e_vsi *vsi = np->vsi; 3526 struct i40e_pf *pf = vsi->back; 3527 int ret = -EOPNOTSUPP; 3528 3529 switch (cmd->cmd) { 3530 case ETHTOOL_GRXRINGS: 3531 cmd->data = vsi->rss_size; 3532 ret = 0; 3533 break; 3534 case ETHTOOL_GRXFH: 3535 ret = i40e_get_rss_hash_opts(pf, cmd); 3536 break; 3537 case ETHTOOL_GRXCLSRLCNT: 3538 cmd->rule_cnt = pf->fdir_pf_active_filters; 3539 /* report total rule count */ 3540 cmd->data = i40e_get_fd_cnt_all(pf); 3541 ret = 0; 3542 break; 3543 case ETHTOOL_GRXCLSRULE: 3544 ret = i40e_get_ethtool_fdir_entry(pf, cmd); 3545 break; 3546 case ETHTOOL_GRXCLSRLALL: 3547 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs); 3548 break; 3549 default: 3550 break; 3551 } 3552 3553 return ret; 3554 } 3555 3556 /** 3557 * i40e_get_rss_hash_bits - Read RSS Hash bits from register 3558 * @hw: hw structure 3559 * @nfc: pointer to user request 3560 * @i_setc: bits currently set 3561 * 3562 * Returns value of bits to be set per user request 3563 **/ 3564 static u64 i40e_get_rss_hash_bits(struct i40e_hw *hw, 3565 struct ethtool_rxnfc *nfc, 3566 u64 i_setc) 3567 { 3568 u64 i_set = i_setc; 3569 u64 src_l3 = 0, dst_l3 = 0; 3570 3571 if (nfc->data & RXH_L4_B_0_1) 3572 i_set |= I40E_L4_SRC_MASK; 3573 else 3574 i_set &= ~I40E_L4_SRC_MASK; 3575 if (nfc->data & RXH_L4_B_2_3) 3576 i_set |= I40E_L4_DST_MASK; 3577 else 3578 i_set &= ~I40E_L4_DST_MASK; 3579 3580 if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) { 3581 src_l3 = I40E_L3_V6_SRC_MASK; 3582 dst_l3 = I40E_L3_V6_DST_MASK; 3583 } else if (nfc->flow_type == TCP_V4_FLOW || 3584 nfc->flow_type == UDP_V4_FLOW) { 3585 if (hw->mac.type == I40E_MAC_X722) { 3586 src_l3 = I40E_X722_L3_SRC_MASK; 3587 dst_l3 = I40E_X722_L3_DST_MASK; 3588 } else { 3589 src_l3 = I40E_L3_SRC_MASK; 3590 dst_l3 = I40E_L3_DST_MASK; 3591 } 3592 } else { 3593 /* Any other flow type are not supported here */ 3594 return i_set; 3595 } 3596 3597 if (nfc->data & RXH_IP_SRC) 3598 i_set |= src_l3; 3599 else 3600 i_set &= ~src_l3; 3601 if (nfc->data & RXH_IP_DST) 3602 i_set |= dst_l3; 3603 else 3604 i_set &= ~dst_l3; 3605 3606 return i_set; 3607 } 3608 3609 #define FLOW_PCTYPES_SIZE 64 3610 /** 3611 * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash 3612 * @pf: pointer to the physical function struct 3613 * @nfc: ethtool rxnfc command 3614 * 3615 * Returns Success if the flow input set is supported. 3616 **/ 3617 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc) 3618 { 3619 struct i40e_hw *hw = &pf->hw; 3620 u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) | 3621 ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32); 3622 DECLARE_BITMAP(flow_pctypes, FLOW_PCTYPES_SIZE); 3623 u64 i_set, i_setc; 3624 3625 bitmap_zero(flow_pctypes, FLOW_PCTYPES_SIZE); 3626 3627 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 3628 dev_err(&pf->pdev->dev, 3629 "Change of RSS hash input set is not supported when MFP mode is enabled\n"); 3630 return -EOPNOTSUPP; 3631 } 3632 3633 /* RSS does not support anything other than hashing 3634 * to queues on src and dst IPs and ports 3635 */ 3636 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 3637 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 3638 return -EINVAL; 3639 3640 switch (nfc->flow_type) { 3641 case TCP_V4_FLOW: 3642 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_TCP, flow_pctypes); 3643 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3644 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK, 3645 flow_pctypes); 3646 break; 3647 case TCP_V6_FLOW: 3648 set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_TCP, flow_pctypes); 3649 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3650 set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK, 3651 flow_pctypes); 3652 break; 3653 case UDP_V4_FLOW: 3654 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_UDP, flow_pctypes); 3655 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) { 3656 set_bit(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP, 3657 flow_pctypes); 3658 set_bit(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP, 3659 flow_pctypes); 3660 } 3661 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 3662 break; 3663 case UDP_V6_FLOW: 3664 set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_UDP, flow_pctypes); 3665 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) { 3666 set_bit(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP, 3667 flow_pctypes); 3668 set_bit(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP, 3669 flow_pctypes); 3670 } 3671 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 3672 break; 3673 case AH_ESP_V4_FLOW: 3674 case AH_V4_FLOW: 3675 case ESP_V4_FLOW: 3676 case SCTP_V4_FLOW: 3677 if ((nfc->data & RXH_L4_B_0_1) || 3678 (nfc->data & RXH_L4_B_2_3)) 3679 return -EINVAL; 3680 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER); 3681 break; 3682 case AH_ESP_V6_FLOW: 3683 case AH_V6_FLOW: 3684 case ESP_V6_FLOW: 3685 case SCTP_V6_FLOW: 3686 if ((nfc->data & RXH_L4_B_0_1) || 3687 (nfc->data & RXH_L4_B_2_3)) 3688 return -EINVAL; 3689 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER); 3690 break; 3691 case IPV4_FLOW: 3692 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) | 3693 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 3694 break; 3695 case IPV6_FLOW: 3696 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) | 3697 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 3698 break; 3699 default: 3700 return -EINVAL; 3701 } 3702 3703 if (bitmap_weight(flow_pctypes, FLOW_PCTYPES_SIZE)) { 3704 u8 flow_id; 3705 3706 for_each_set_bit(flow_id, flow_pctypes, FLOW_PCTYPES_SIZE) { 3707 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id)) | 3708 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id)) << 32); 3709 i_set = i40e_get_rss_hash_bits(&pf->hw, nfc, i_setc); 3710 3711 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id), 3712 (u32)i_set); 3713 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id), 3714 (u32)(i_set >> 32)); 3715 hena |= BIT_ULL(flow_id); 3716 } 3717 } 3718 3719 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena); 3720 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32)); 3721 i40e_flush(hw); 3722 3723 return 0; 3724 } 3725 3726 /** 3727 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry 3728 * @vsi: Pointer to the targeted VSI 3729 * @input: The filter to update or NULL to indicate deletion 3730 * @sw_idx: Software index to the filter 3731 * @cmd: The command to get or set Rx flow classification rules 3732 * 3733 * This function updates (or deletes) a Flow Director entry from 3734 * the hlist of the corresponding PF 3735 * 3736 * Returns 0 on success 3737 **/ 3738 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi, 3739 struct i40e_fdir_filter *input, 3740 u16 sw_idx, 3741 struct ethtool_rxnfc *cmd) 3742 { 3743 struct i40e_fdir_filter *rule, *parent; 3744 struct i40e_pf *pf = vsi->back; 3745 struct hlist_node *node2; 3746 int err = -EINVAL; 3747 3748 parent = NULL; 3749 rule = NULL; 3750 3751 hlist_for_each_entry_safe(rule, node2, 3752 &pf->fdir_filter_list, fdir_node) { 3753 /* hash found, or no matching entry */ 3754 if (rule->fd_id >= sw_idx) 3755 break; 3756 parent = rule; 3757 } 3758 3759 /* if there is an old rule occupying our place remove it */ 3760 if (rule && (rule->fd_id == sw_idx)) { 3761 /* Remove this rule, since we're either deleting it, or 3762 * replacing it. 3763 */ 3764 err = i40e_add_del_fdir(vsi, rule, false); 3765 hlist_del(&rule->fdir_node); 3766 kfree(rule); 3767 pf->fdir_pf_active_filters--; 3768 } 3769 3770 /* If we weren't given an input, this is a delete, so just return the 3771 * error code indicating if there was an entry at the requested slot 3772 */ 3773 if (!input) 3774 return err; 3775 3776 /* Otherwise, install the new rule as requested */ 3777 INIT_HLIST_NODE(&input->fdir_node); 3778 3779 /* add filter to the list */ 3780 if (parent) 3781 hlist_add_behind(&input->fdir_node, &parent->fdir_node); 3782 else 3783 hlist_add_head(&input->fdir_node, 3784 &pf->fdir_filter_list); 3785 3786 /* update counts */ 3787 pf->fdir_pf_active_filters++; 3788 3789 return 0; 3790 } 3791 3792 /** 3793 * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table 3794 * @pf: pointer to PF structure 3795 * 3796 * This function searches the list of filters and determines which FLX_PIT 3797 * entries are still required. It will prune any entries which are no longer 3798 * in use after the deletion. 3799 **/ 3800 static void i40e_prune_flex_pit_list(struct i40e_pf *pf) 3801 { 3802 struct i40e_flex_pit *entry, *tmp; 3803 struct i40e_fdir_filter *rule; 3804 3805 /* First, we'll check the l3 table */ 3806 list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) { 3807 bool found = false; 3808 3809 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3810 if (rule->flow_type != IP_USER_FLOW) 3811 continue; 3812 if (rule->flex_filter && 3813 rule->flex_offset == entry->src_offset) { 3814 found = true; 3815 break; 3816 } 3817 } 3818 3819 /* If we didn't find the filter, then we can prune this entry 3820 * from the list. 3821 */ 3822 if (!found) { 3823 list_del(&entry->list); 3824 kfree(entry); 3825 } 3826 } 3827 3828 /* Followed by the L4 table */ 3829 list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) { 3830 bool found = false; 3831 3832 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3833 /* Skip this filter if it's L3, since we already 3834 * checked those in the above loop 3835 */ 3836 if (rule->flow_type == IP_USER_FLOW) 3837 continue; 3838 if (rule->flex_filter && 3839 rule->flex_offset == entry->src_offset) { 3840 found = true; 3841 break; 3842 } 3843 } 3844 3845 /* If we didn't find the filter, then we can prune this entry 3846 * from the list. 3847 */ 3848 if (!found) { 3849 list_del(&entry->list); 3850 kfree(entry); 3851 } 3852 } 3853 } 3854 3855 /** 3856 * i40e_del_fdir_entry - Deletes a Flow Director filter entry 3857 * @vsi: Pointer to the targeted VSI 3858 * @cmd: The command to get or set Rx flow classification rules 3859 * 3860 * The function removes a Flow Director filter entry from the 3861 * hlist of the corresponding PF 3862 * 3863 * Returns 0 on success 3864 */ 3865 static int i40e_del_fdir_entry(struct i40e_vsi *vsi, 3866 struct ethtool_rxnfc *cmd) 3867 { 3868 struct ethtool_rx_flow_spec *fsp = 3869 (struct ethtool_rx_flow_spec *)&cmd->fs; 3870 struct i40e_pf *pf = vsi->back; 3871 int ret = 0; 3872 3873 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 3874 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 3875 return -EBUSY; 3876 3877 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 3878 return -EBUSY; 3879 3880 ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd); 3881 3882 i40e_prune_flex_pit_list(pf); 3883 3884 i40e_fdir_check_and_reenable(pf); 3885 return ret; 3886 } 3887 3888 /** 3889 * i40e_unused_pit_index - Find an unused PIT index for given list 3890 * @pf: the PF data structure 3891 * 3892 * Find the first unused flexible PIT index entry. We search both the L3 and 3893 * L4 flexible PIT lists so that the returned index is unique and unused by 3894 * either currently programmed L3 or L4 filters. We use a bit field as storage 3895 * to track which indexes are already used. 3896 **/ 3897 static u8 i40e_unused_pit_index(struct i40e_pf *pf) 3898 { 3899 unsigned long available_index = 0xFF; 3900 struct i40e_flex_pit *entry; 3901 3902 /* We need to make sure that the new index isn't in use by either L3 3903 * or L4 filters so that IP_USER_FLOW filters can program both L3 and 3904 * L4 to use the same index. 3905 */ 3906 3907 list_for_each_entry(entry, &pf->l4_flex_pit_list, list) 3908 clear_bit(entry->pit_index, &available_index); 3909 3910 list_for_each_entry(entry, &pf->l3_flex_pit_list, list) 3911 clear_bit(entry->pit_index, &available_index); 3912 3913 return find_first_bit(&available_index, 8); 3914 } 3915 3916 /** 3917 * i40e_find_flex_offset - Find an existing flex src_offset 3918 * @flex_pit_list: L3 or L4 flex PIT list 3919 * @src_offset: new src_offset to find 3920 * 3921 * Searches the flex_pit_list for an existing offset. If no offset is 3922 * currently programmed, then this will return an ERR_PTR if there is no space 3923 * to add a new offset, otherwise it returns NULL. 3924 **/ 3925 static 3926 struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list, 3927 u16 src_offset) 3928 { 3929 struct i40e_flex_pit *entry; 3930 int size = 0; 3931 3932 /* Search for the src_offset first. If we find a matching entry 3933 * already programmed, we can simply re-use it. 3934 */ 3935 list_for_each_entry(entry, flex_pit_list, list) { 3936 size++; 3937 if (entry->src_offset == src_offset) 3938 return entry; 3939 } 3940 3941 /* If we haven't found an entry yet, then the provided src offset has 3942 * not yet been programmed. We will program the src offset later on, 3943 * but we need to indicate whether there is enough space to do so 3944 * here. We'll make use of ERR_PTR for this purpose. 3945 */ 3946 if (size >= I40E_FLEX_PIT_TABLE_SIZE) 3947 return ERR_PTR(-ENOSPC); 3948 3949 return NULL; 3950 } 3951 3952 /** 3953 * i40e_add_flex_offset - Add src_offset to flex PIT table list 3954 * @flex_pit_list: L3 or L4 flex PIT list 3955 * @src_offset: new src_offset to add 3956 * @pit_index: the PIT index to program 3957 * 3958 * This function programs the new src_offset to the list. It is expected that 3959 * i40e_find_flex_offset has already been tried and returned NULL, indicating 3960 * that this offset is not programmed, and that the list has enough space to 3961 * store another offset. 3962 * 3963 * Returns 0 on success, and negative value on error. 3964 **/ 3965 static int i40e_add_flex_offset(struct list_head *flex_pit_list, 3966 u16 src_offset, 3967 u8 pit_index) 3968 { 3969 struct i40e_flex_pit *new_pit, *entry; 3970 3971 new_pit = kzalloc(sizeof(*entry), GFP_KERNEL); 3972 if (!new_pit) 3973 return -ENOMEM; 3974 3975 new_pit->src_offset = src_offset; 3976 new_pit->pit_index = pit_index; 3977 3978 /* We need to insert this item such that the list is sorted by 3979 * src_offset in ascending order. 3980 */ 3981 list_for_each_entry(entry, flex_pit_list, list) { 3982 if (new_pit->src_offset < entry->src_offset) { 3983 list_add_tail(&new_pit->list, &entry->list); 3984 return 0; 3985 } 3986 3987 /* If we found an entry with our offset already programmed we 3988 * can simply return here, after freeing the memory. However, 3989 * if the pit_index does not match we need to report an error. 3990 */ 3991 if (new_pit->src_offset == entry->src_offset) { 3992 int err = 0; 3993 3994 /* If the PIT index is not the same we can't re-use 3995 * the entry, so we must report an error. 3996 */ 3997 if (new_pit->pit_index != entry->pit_index) 3998 err = -EINVAL; 3999 4000 kfree(new_pit); 4001 return err; 4002 } 4003 } 4004 4005 /* If we reached here, then we haven't yet added the item. This means 4006 * that we should add the item at the end of the list. 4007 */ 4008 list_add_tail(&new_pit->list, flex_pit_list); 4009 return 0; 4010 } 4011 4012 /** 4013 * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table 4014 * @pf: Pointer to the PF structure 4015 * @flex_pit_list: list of flexible src offsets in use 4016 * @flex_pit_start: index to first entry for this section of the table 4017 * 4018 * In order to handle flexible data, the hardware uses a table of values 4019 * called the FLX_PIT table. This table is used to indicate which sections of 4020 * the input correspond to what PIT index values. Unfortunately, hardware is 4021 * very restrictive about programming this table. Entries must be ordered by 4022 * src_offset in ascending order, without duplicates. Additionally, unused 4023 * entries must be set to the unused index value, and must have valid size and 4024 * length according to the src_offset ordering. 4025 * 4026 * This function will reprogram the FLX_PIT register from a book-keeping 4027 * structure that we guarantee is already ordered correctly, and has no more 4028 * than 3 entries. 4029 * 4030 * To make things easier, we only support flexible values of one word length, 4031 * rather than allowing variable length flexible values. 4032 **/ 4033 static void __i40e_reprogram_flex_pit(struct i40e_pf *pf, 4034 struct list_head *flex_pit_list, 4035 int flex_pit_start) 4036 { 4037 struct i40e_flex_pit *entry = NULL; 4038 u16 last_offset = 0; 4039 int i = 0, j = 0; 4040 4041 /* First, loop over the list of flex PIT entries, and reprogram the 4042 * registers. 4043 */ 4044 list_for_each_entry(entry, flex_pit_list, list) { 4045 /* We have to be careful when programming values for the 4046 * largest SRC_OFFSET value. It is possible that adding 4047 * additional empty values at the end would overflow the space 4048 * for the SRC_OFFSET in the FLX_PIT register. To avoid this, 4049 * we check here and add the empty values prior to adding the 4050 * largest value. 4051 * 4052 * To determine this, we will use a loop from i+1 to 3, which 4053 * will determine whether the unused entries would have valid 4054 * SRC_OFFSET. Note that there cannot be extra entries past 4055 * this value, because the only valid values would have been 4056 * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not 4057 * have been added to the list in the first place. 4058 */ 4059 for (j = i + 1; j < 3; j++) { 4060 u16 offset = entry->src_offset + j; 4061 int index = flex_pit_start + i; 4062 u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 4063 1, 4064 offset - 3); 4065 4066 if (offset > I40E_MAX_FLEX_SRC_OFFSET) { 4067 i40e_write_rx_ctl(&pf->hw, 4068 I40E_PRTQF_FLX_PIT(index), 4069 value); 4070 i++; 4071 } 4072 } 4073 4074 /* Now, we can program the actual value into the table */ 4075 i40e_write_rx_ctl(&pf->hw, 4076 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 4077 I40E_FLEX_PREP_VAL(entry->pit_index + 50, 4078 1, 4079 entry->src_offset)); 4080 i++; 4081 } 4082 4083 /* In order to program the last entries in the table, we need to 4084 * determine the valid offset. If the list is empty, we'll just start 4085 * with 0. Otherwise, we'll start with the last item offset and add 1. 4086 * This ensures that all entries have valid sizes. If we don't do this 4087 * correctly, the hardware will disable flexible field parsing. 4088 */ 4089 if (!list_empty(flex_pit_list)) 4090 last_offset = list_prev_entry(entry, list)->src_offset + 1; 4091 4092 for (; i < 3; i++, last_offset++) { 4093 i40e_write_rx_ctl(&pf->hw, 4094 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 4095 I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 4096 1, 4097 last_offset)); 4098 } 4099 } 4100 4101 /** 4102 * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change 4103 * @pf: pointer to the PF structure 4104 * 4105 * This function reprograms both the L3 and L4 FLX_PIT tables. See the 4106 * internal helper function for implementation details. 4107 **/ 4108 static void i40e_reprogram_flex_pit(struct i40e_pf *pf) 4109 { 4110 __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list, 4111 I40E_FLEX_PIT_IDX_START_L3); 4112 4113 __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list, 4114 I40E_FLEX_PIT_IDX_START_L4); 4115 4116 /* We also need to program the L3 and L4 GLQF ORT register */ 4117 i40e_write_rx_ctl(&pf->hw, 4118 I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX), 4119 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3, 4120 3, 1)); 4121 4122 i40e_write_rx_ctl(&pf->hw, 4123 I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX), 4124 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4, 4125 3, 1)); 4126 } 4127 4128 /** 4129 * i40e_flow_str - Converts a flow_type into a human readable string 4130 * @fsp: the flow specification 4131 * 4132 * Currently only flow types we support are included here, and the string 4133 * value attempts to match what ethtool would use to configure this flow type. 4134 **/ 4135 static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp) 4136 { 4137 switch (fsp->flow_type & ~FLOW_EXT) { 4138 case TCP_V4_FLOW: 4139 return "tcp4"; 4140 case UDP_V4_FLOW: 4141 return "udp4"; 4142 case SCTP_V4_FLOW: 4143 return "sctp4"; 4144 case IP_USER_FLOW: 4145 return "ip4"; 4146 case TCP_V6_FLOW: 4147 return "tcp6"; 4148 case UDP_V6_FLOW: 4149 return "udp6"; 4150 case SCTP_V6_FLOW: 4151 return "sctp6"; 4152 case IPV6_USER_FLOW: 4153 return "ip6"; 4154 default: 4155 return "unknown"; 4156 } 4157 } 4158 4159 /** 4160 * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index 4161 * @pit_index: PIT index to convert 4162 * 4163 * Returns the mask for a given PIT index. Will return 0 if the pit_index is 4164 * of range. 4165 **/ 4166 static u64 i40e_pit_index_to_mask(int pit_index) 4167 { 4168 switch (pit_index) { 4169 case 0: 4170 return I40E_FLEX_50_MASK; 4171 case 1: 4172 return I40E_FLEX_51_MASK; 4173 case 2: 4174 return I40E_FLEX_52_MASK; 4175 case 3: 4176 return I40E_FLEX_53_MASK; 4177 case 4: 4178 return I40E_FLEX_54_MASK; 4179 case 5: 4180 return I40E_FLEX_55_MASK; 4181 case 6: 4182 return I40E_FLEX_56_MASK; 4183 case 7: 4184 return I40E_FLEX_57_MASK; 4185 default: 4186 return 0; 4187 } 4188 } 4189 4190 /** 4191 * i40e_print_input_set - Show changes between two input sets 4192 * @vsi: the vsi being configured 4193 * @old: the old input set 4194 * @new: the new input set 4195 * 4196 * Print the difference between old and new input sets by showing which series 4197 * of words are toggled on or off. Only displays the bits we actually support 4198 * changing. 4199 **/ 4200 static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new) 4201 { 4202 struct i40e_pf *pf = vsi->back; 4203 bool old_value, new_value; 4204 int i; 4205 4206 old_value = !!(old & I40E_L3_SRC_MASK); 4207 new_value = !!(new & I40E_L3_SRC_MASK); 4208 if (old_value != new_value) 4209 netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n", 4210 old_value ? "ON" : "OFF", 4211 new_value ? "ON" : "OFF"); 4212 4213 old_value = !!(old & I40E_L3_DST_MASK); 4214 new_value = !!(new & I40E_L3_DST_MASK); 4215 if (old_value != new_value) 4216 netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n", 4217 old_value ? "ON" : "OFF", 4218 new_value ? "ON" : "OFF"); 4219 4220 old_value = !!(old & I40E_L4_SRC_MASK); 4221 new_value = !!(new & I40E_L4_SRC_MASK); 4222 if (old_value != new_value) 4223 netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n", 4224 old_value ? "ON" : "OFF", 4225 new_value ? "ON" : "OFF"); 4226 4227 old_value = !!(old & I40E_L4_DST_MASK); 4228 new_value = !!(new & I40E_L4_DST_MASK); 4229 if (old_value != new_value) 4230 netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n", 4231 old_value ? "ON" : "OFF", 4232 new_value ? "ON" : "OFF"); 4233 4234 old_value = !!(old & I40E_VERIFY_TAG_MASK); 4235 new_value = !!(new & I40E_VERIFY_TAG_MASK); 4236 if (old_value != new_value) 4237 netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n", 4238 old_value ? "ON" : "OFF", 4239 new_value ? "ON" : "OFF"); 4240 4241 /* Show change of flexible filter entries */ 4242 for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) { 4243 u64 flex_mask = i40e_pit_index_to_mask(i); 4244 4245 old_value = !!(old & flex_mask); 4246 new_value = !!(new & flex_mask); 4247 if (old_value != new_value) 4248 netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n", 4249 i, 4250 old_value ? "ON" : "OFF", 4251 new_value ? "ON" : "OFF"); 4252 } 4253 4254 netif_info(pf, drv, vsi->netdev, " Current input set: %0llx\n", 4255 old); 4256 netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n", 4257 new); 4258 } 4259 4260 /** 4261 * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid 4262 * @vsi: pointer to the targeted VSI 4263 * @fsp: pointer to Rx flow specification 4264 * @userdef: userdefined data from flow specification 4265 * 4266 * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support 4267 * for partial matches exists with a few limitations. First, hardware only 4268 * supports masking by word boundary (2 bytes) and not per individual bit. 4269 * Second, hardware is limited to using one mask for a flow type and cannot 4270 * use a separate mask for each filter. 4271 * 4272 * To support these limitations, if we already have a configured filter for 4273 * the specified type, this function enforces that new filters of the type 4274 * match the configured input set. Otherwise, if we do not have a filter of 4275 * the specified type, we allow the input set to be updated to match the 4276 * desired filter. 4277 * 4278 * To help ensure that administrators understand why filters weren't displayed 4279 * as supported, we print a diagnostic message displaying how the input set 4280 * would change and warning to delete the preexisting filters if required. 4281 * 4282 * Returns 0 on successful input set match, and a negative return code on 4283 * failure. 4284 **/ 4285 static int i40e_check_fdir_input_set(struct i40e_vsi *vsi, 4286 struct ethtool_rx_flow_spec *fsp, 4287 struct i40e_rx_flow_userdef *userdef) 4288 { 4289 static const __be32 ipv6_full_mask[4] = {cpu_to_be32(0xffffffff), 4290 cpu_to_be32(0xffffffff), cpu_to_be32(0xffffffff), 4291 cpu_to_be32(0xffffffff)}; 4292 struct ethtool_tcpip6_spec *tcp_ip6_spec; 4293 struct ethtool_usrip6_spec *usr_ip6_spec; 4294 struct ethtool_tcpip4_spec *tcp_ip4_spec; 4295 struct ethtool_usrip4_spec *usr_ip4_spec; 4296 struct i40e_pf *pf = vsi->back; 4297 u64 current_mask, new_mask; 4298 bool new_flex_offset = false; 4299 bool flex_l3 = false; 4300 u16 *fdir_filter_count; 4301 u16 index, src_offset = 0; 4302 u8 pit_index = 0; 4303 int err; 4304 4305 switch (fsp->flow_type & ~FLOW_EXT) { 4306 case SCTP_V4_FLOW: 4307 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP; 4308 fdir_filter_count = &pf->fd_sctp4_filter_cnt; 4309 break; 4310 case TCP_V4_FLOW: 4311 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 4312 fdir_filter_count = &pf->fd_tcp4_filter_cnt; 4313 break; 4314 case UDP_V4_FLOW: 4315 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 4316 fdir_filter_count = &pf->fd_udp4_filter_cnt; 4317 break; 4318 case SCTP_V6_FLOW: 4319 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP; 4320 fdir_filter_count = &pf->fd_sctp6_filter_cnt; 4321 break; 4322 case TCP_V6_FLOW: 4323 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 4324 fdir_filter_count = &pf->fd_tcp6_filter_cnt; 4325 break; 4326 case UDP_V6_FLOW: 4327 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 4328 fdir_filter_count = &pf->fd_udp6_filter_cnt; 4329 break; 4330 case IP_USER_FLOW: 4331 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER; 4332 fdir_filter_count = &pf->fd_ip4_filter_cnt; 4333 flex_l3 = true; 4334 break; 4335 case IPV6_USER_FLOW: 4336 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER; 4337 fdir_filter_count = &pf->fd_ip6_filter_cnt; 4338 flex_l3 = true; 4339 break; 4340 default: 4341 return -EOPNOTSUPP; 4342 } 4343 4344 /* Read the current input set from register memory. */ 4345 current_mask = i40e_read_fd_input_set(pf, index); 4346 new_mask = current_mask; 4347 4348 /* Determine, if any, the required changes to the input set in order 4349 * to support the provided mask. 4350 * 4351 * Hardware only supports masking at word (2 byte) granularity and does 4352 * not support full bitwise masking. This implementation simplifies 4353 * even further and only supports fully enabled or fully disabled 4354 * masks for each field, even though we could split the ip4src and 4355 * ip4dst fields. 4356 */ 4357 switch (fsp->flow_type & ~FLOW_EXT) { 4358 case SCTP_V4_FLOW: 4359 new_mask &= ~I40E_VERIFY_TAG_MASK; 4360 fallthrough; 4361 case TCP_V4_FLOW: 4362 case UDP_V4_FLOW: 4363 tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec; 4364 4365 /* IPv4 source address */ 4366 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 4367 new_mask |= I40E_L3_SRC_MASK; 4368 else if (!tcp_ip4_spec->ip4src) 4369 new_mask &= ~I40E_L3_SRC_MASK; 4370 else 4371 return -EOPNOTSUPP; 4372 4373 /* IPv4 destination address */ 4374 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 4375 new_mask |= I40E_L3_DST_MASK; 4376 else if (!tcp_ip4_spec->ip4dst) 4377 new_mask &= ~I40E_L3_DST_MASK; 4378 else 4379 return -EOPNOTSUPP; 4380 4381 /* L4 source port */ 4382 if (tcp_ip4_spec->psrc == htons(0xFFFF)) 4383 new_mask |= I40E_L4_SRC_MASK; 4384 else if (!tcp_ip4_spec->psrc) 4385 new_mask &= ~I40E_L4_SRC_MASK; 4386 else 4387 return -EOPNOTSUPP; 4388 4389 /* L4 destination port */ 4390 if (tcp_ip4_spec->pdst == htons(0xFFFF)) 4391 new_mask |= I40E_L4_DST_MASK; 4392 else if (!tcp_ip4_spec->pdst) 4393 new_mask &= ~I40E_L4_DST_MASK; 4394 else 4395 return -EOPNOTSUPP; 4396 4397 /* Filtering on Type of Service is not supported. */ 4398 if (tcp_ip4_spec->tos) 4399 return -EOPNOTSUPP; 4400 4401 break; 4402 case SCTP_V6_FLOW: 4403 new_mask &= ~I40E_VERIFY_TAG_MASK; 4404 fallthrough; 4405 case TCP_V6_FLOW: 4406 case UDP_V6_FLOW: 4407 tcp_ip6_spec = &fsp->m_u.tcp_ip6_spec; 4408 4409 /* Check if user provided IPv6 source address. */ 4410 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6src, 4411 (struct in6_addr *)&ipv6_full_mask)) 4412 new_mask |= I40E_L3_V6_SRC_MASK; 4413 else if (ipv6_addr_any((struct in6_addr *) 4414 &tcp_ip6_spec->ip6src)) 4415 new_mask &= ~I40E_L3_V6_SRC_MASK; 4416 else 4417 return -EOPNOTSUPP; 4418 4419 /* Check if user provided destination address. */ 4420 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6dst, 4421 (struct in6_addr *)&ipv6_full_mask)) 4422 new_mask |= I40E_L3_V6_DST_MASK; 4423 else if (ipv6_addr_any((struct in6_addr *) 4424 &tcp_ip6_spec->ip6dst)) 4425 new_mask &= ~I40E_L3_V6_DST_MASK; 4426 else 4427 return -EOPNOTSUPP; 4428 4429 /* L4 source port */ 4430 if (tcp_ip6_spec->psrc == htons(0xFFFF)) 4431 new_mask |= I40E_L4_SRC_MASK; 4432 else if (!tcp_ip6_spec->psrc) 4433 new_mask &= ~I40E_L4_SRC_MASK; 4434 else 4435 return -EOPNOTSUPP; 4436 4437 /* L4 destination port */ 4438 if (tcp_ip6_spec->pdst == htons(0xFFFF)) 4439 new_mask |= I40E_L4_DST_MASK; 4440 else if (!tcp_ip6_spec->pdst) 4441 new_mask &= ~I40E_L4_DST_MASK; 4442 else 4443 return -EOPNOTSUPP; 4444 4445 /* Filtering on Traffic Classes is not supported. */ 4446 if (tcp_ip6_spec->tclass) 4447 return -EOPNOTSUPP; 4448 break; 4449 case IP_USER_FLOW: 4450 usr_ip4_spec = &fsp->m_u.usr_ip4_spec; 4451 4452 /* IPv4 source address */ 4453 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 4454 new_mask |= I40E_L3_SRC_MASK; 4455 else if (!usr_ip4_spec->ip4src) 4456 new_mask &= ~I40E_L3_SRC_MASK; 4457 else 4458 return -EOPNOTSUPP; 4459 4460 /* IPv4 destination address */ 4461 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 4462 new_mask |= I40E_L3_DST_MASK; 4463 else if (!usr_ip4_spec->ip4dst) 4464 new_mask &= ~I40E_L3_DST_MASK; 4465 else 4466 return -EOPNOTSUPP; 4467 4468 /* First 4 bytes of L4 header */ 4469 if (usr_ip4_spec->l4_4_bytes) 4470 return -EOPNOTSUPP; 4471 4472 /* Filtering on Type of Service is not supported. */ 4473 if (usr_ip4_spec->tos) 4474 return -EOPNOTSUPP; 4475 4476 /* Filtering on IP version is not supported */ 4477 if (usr_ip4_spec->ip_ver) 4478 return -EINVAL; 4479 4480 /* Filtering on L4 protocol is not supported */ 4481 if (usr_ip4_spec->proto) 4482 return -EINVAL; 4483 4484 break; 4485 case IPV6_USER_FLOW: 4486 usr_ip6_spec = &fsp->m_u.usr_ip6_spec; 4487 4488 /* Check if user provided IPv6 source address. */ 4489 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6src, 4490 (struct in6_addr *)&ipv6_full_mask)) 4491 new_mask |= I40E_L3_V6_SRC_MASK; 4492 else if (ipv6_addr_any((struct in6_addr *) 4493 &usr_ip6_spec->ip6src)) 4494 new_mask &= ~I40E_L3_V6_SRC_MASK; 4495 else 4496 return -EOPNOTSUPP; 4497 4498 /* Check if user provided destination address. */ 4499 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6dst, 4500 (struct in6_addr *)&ipv6_full_mask)) 4501 new_mask |= I40E_L3_V6_DST_MASK; 4502 else if (ipv6_addr_any((struct in6_addr *) 4503 &usr_ip6_spec->ip6dst)) 4504 new_mask &= ~I40E_L3_V6_DST_MASK; 4505 else 4506 return -EOPNOTSUPP; 4507 4508 if (usr_ip6_spec->l4_4_bytes) 4509 return -EOPNOTSUPP; 4510 4511 /* Filtering on Traffic class is not supported. */ 4512 if (usr_ip6_spec->tclass) 4513 return -EOPNOTSUPP; 4514 4515 /* Filtering on L4 protocol is not supported */ 4516 if (usr_ip6_spec->l4_proto) 4517 return -EINVAL; 4518 4519 break; 4520 default: 4521 return -EOPNOTSUPP; 4522 } 4523 4524 if (fsp->flow_type & FLOW_EXT) { 4525 /* Allow only 802.1Q and no etype defined, as 4526 * later it's modified to 0x8100 4527 */ 4528 if (fsp->h_ext.vlan_etype != htons(ETH_P_8021Q) && 4529 fsp->h_ext.vlan_etype != 0) 4530 return -EOPNOTSUPP; 4531 if (fsp->m_ext.vlan_tci == htons(0xFFFF)) 4532 new_mask |= I40E_VLAN_SRC_MASK; 4533 else 4534 new_mask &= ~I40E_VLAN_SRC_MASK; 4535 } 4536 4537 /* First, clear all flexible filter entries */ 4538 new_mask &= ~I40E_FLEX_INPUT_MASK; 4539 4540 /* If we have a flexible filter, try to add this offset to the correct 4541 * flexible filter PIT list. Once finished, we can update the mask. 4542 * If the src_offset changed, we will get a new mask value which will 4543 * trigger an input set change. 4544 */ 4545 if (userdef->flex_filter) { 4546 struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL; 4547 4548 /* Flexible offset must be even, since the flexible payload 4549 * must be aligned on 2-byte boundary. 4550 */ 4551 if (userdef->flex_offset & 0x1) { 4552 dev_warn(&pf->pdev->dev, 4553 "Flexible data offset must be 2-byte aligned\n"); 4554 return -EINVAL; 4555 } 4556 4557 src_offset = userdef->flex_offset >> 1; 4558 4559 /* FLX_PIT source offset value is only so large */ 4560 if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) { 4561 dev_warn(&pf->pdev->dev, 4562 "Flexible data must reside within first 64 bytes of the packet payload\n"); 4563 return -EINVAL; 4564 } 4565 4566 /* See if this offset has already been programmed. If we get 4567 * an ERR_PTR, then the filter is not safe to add. Otherwise, 4568 * if we get a NULL pointer, this means we will need to add 4569 * the offset. 4570 */ 4571 flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list, 4572 src_offset); 4573 if (IS_ERR(flex_pit)) 4574 return PTR_ERR(flex_pit); 4575 4576 /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown) 4577 * packet types, and thus we need to program both L3 and L4 4578 * flexible values. These must have identical flexible index, 4579 * as otherwise we can't correctly program the input set. So 4580 * we'll find both an L3 and L4 index and make sure they are 4581 * the same. 4582 */ 4583 if (flex_l3) { 4584 l3_flex_pit = 4585 i40e_find_flex_offset(&pf->l3_flex_pit_list, 4586 src_offset); 4587 if (IS_ERR(l3_flex_pit)) 4588 return PTR_ERR(l3_flex_pit); 4589 4590 if (flex_pit) { 4591 /* If we already had a matching L4 entry, we 4592 * need to make sure that the L3 entry we 4593 * obtained uses the same index. 4594 */ 4595 if (l3_flex_pit) { 4596 if (l3_flex_pit->pit_index != 4597 flex_pit->pit_index) { 4598 return -EINVAL; 4599 } 4600 } else { 4601 new_flex_offset = true; 4602 } 4603 } else { 4604 flex_pit = l3_flex_pit; 4605 } 4606 } 4607 4608 /* If we didn't find an existing flex offset, we need to 4609 * program a new one. However, we don't immediately program it 4610 * here because we will wait to program until after we check 4611 * that it is safe to change the input set. 4612 */ 4613 if (!flex_pit) { 4614 new_flex_offset = true; 4615 pit_index = i40e_unused_pit_index(pf); 4616 } else { 4617 pit_index = flex_pit->pit_index; 4618 } 4619 4620 /* Update the mask with the new offset */ 4621 new_mask |= i40e_pit_index_to_mask(pit_index); 4622 } 4623 4624 /* If the mask and flexible filter offsets for this filter match the 4625 * currently programmed values we don't need any input set change, so 4626 * this filter is safe to install. 4627 */ 4628 if (new_mask == current_mask && !new_flex_offset) 4629 return 0; 4630 4631 netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n", 4632 i40e_flow_str(fsp)); 4633 i40e_print_input_set(vsi, current_mask, new_mask); 4634 if (new_flex_offset) { 4635 netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d", 4636 pit_index, src_offset); 4637 } 4638 4639 /* Hardware input sets are global across multiple ports, so even the 4640 * main port cannot change them when in MFP mode as this would impact 4641 * any filters on the other ports. 4642 */ 4643 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 4644 netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n"); 4645 return -EOPNOTSUPP; 4646 } 4647 4648 /* This filter requires us to update the input set. However, hardware 4649 * only supports one input set per flow type, and does not support 4650 * separate masks for each filter. This means that we can only support 4651 * a single mask for all filters of a specific type. 4652 * 4653 * If we have preexisting filters, they obviously depend on the 4654 * current programmed input set. Display a diagnostic message in this 4655 * case explaining why the filter could not be accepted. 4656 */ 4657 if (*fdir_filter_count) { 4658 netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n", 4659 i40e_flow_str(fsp), 4660 *fdir_filter_count); 4661 return -EOPNOTSUPP; 4662 } 4663 4664 i40e_write_fd_input_set(pf, index, new_mask); 4665 4666 /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented 4667 * frames. If we're programming the input set for IPv4/Other, we also 4668 * need to program the IPv4/Fragmented input set. Since we don't have 4669 * separate support, we'll always assume and enforce that the two flow 4670 * types must have matching input sets. 4671 */ 4672 if (index == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) 4673 i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4, 4674 new_mask); 4675 4676 /* Add the new offset and update table, if necessary */ 4677 if (new_flex_offset) { 4678 err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset, 4679 pit_index); 4680 if (err) 4681 return err; 4682 4683 if (flex_l3) { 4684 err = i40e_add_flex_offset(&pf->l3_flex_pit_list, 4685 src_offset, 4686 pit_index); 4687 if (err) 4688 return err; 4689 } 4690 4691 i40e_reprogram_flex_pit(pf); 4692 } 4693 4694 return 0; 4695 } 4696 4697 /** 4698 * i40e_match_fdir_filter - Return true of two filters match 4699 * @a: pointer to filter struct 4700 * @b: pointer to filter struct 4701 * 4702 * Returns true if the two filters match exactly the same criteria. I.e. they 4703 * match the same flow type and have the same parameters. We don't need to 4704 * check any input-set since all filters of the same flow type must use the 4705 * same input set. 4706 **/ 4707 static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a, 4708 struct i40e_fdir_filter *b) 4709 { 4710 /* The filters do not much if any of these criteria differ. */ 4711 if (a->dst_ip != b->dst_ip || 4712 a->src_ip != b->src_ip || 4713 a->dst_port != b->dst_port || 4714 a->src_port != b->src_port || 4715 a->flow_type != b->flow_type || 4716 a->ipl4_proto != b->ipl4_proto || 4717 a->vlan_tag != b->vlan_tag || 4718 a->vlan_etype != b->vlan_etype) 4719 return false; 4720 4721 return true; 4722 } 4723 4724 /** 4725 * i40e_disallow_matching_filters - Check that new filters differ 4726 * @vsi: pointer to the targeted VSI 4727 * @input: new filter to check 4728 * 4729 * Due to hardware limitations, it is not possible for two filters that match 4730 * similar criteria to be programmed at the same time. This is true for a few 4731 * reasons: 4732 * 4733 * (a) all filters matching a particular flow type must use the same input 4734 * set, that is they must match the same criteria. 4735 * (b) different flow types will never match the same packet, as the flow type 4736 * is decided by hardware before checking which rules apply. 4737 * (c) hardware has no way to distinguish which order filters apply in. 4738 * 4739 * Due to this, we can't really support using the location data to order 4740 * filters in the hardware parsing. It is technically possible for the user to 4741 * request two filters matching the same criteria but which select different 4742 * queues. In this case, rather than keep both filters in the list, we reject 4743 * the 2nd filter when the user requests adding it. 4744 * 4745 * This avoids needing to track location for programming the filter to 4746 * hardware, and ensures that we avoid some strange scenarios involving 4747 * deleting filters which match the same criteria. 4748 **/ 4749 static int i40e_disallow_matching_filters(struct i40e_vsi *vsi, 4750 struct i40e_fdir_filter *input) 4751 { 4752 struct i40e_pf *pf = vsi->back; 4753 struct i40e_fdir_filter *rule; 4754 struct hlist_node *node2; 4755 4756 /* Loop through every filter, and check that it doesn't match */ 4757 hlist_for_each_entry_safe(rule, node2, 4758 &pf->fdir_filter_list, fdir_node) { 4759 /* Don't check the filters match if they share the same fd_id, 4760 * since the new filter is actually just updating the target 4761 * of the old filter. 4762 */ 4763 if (rule->fd_id == input->fd_id) 4764 continue; 4765 4766 /* If any filters match, then print a warning message to the 4767 * kernel message buffer and bail out. 4768 */ 4769 if (i40e_match_fdir_filter(rule, input)) { 4770 dev_warn(&pf->pdev->dev, 4771 "Existing user defined filter %d already matches this flow.\n", 4772 rule->fd_id); 4773 return -EINVAL; 4774 } 4775 } 4776 4777 return 0; 4778 } 4779 4780 /** 4781 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters 4782 * @vsi: pointer to the targeted VSI 4783 * @cmd: command to get or set RX flow classification rules 4784 * 4785 * Add Flow Director filters for a specific flow spec based on their 4786 * protocol. Returns 0 if the filters were successfully added. 4787 **/ 4788 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi, 4789 struct ethtool_rxnfc *cmd) 4790 { 4791 struct i40e_rx_flow_userdef userdef; 4792 struct ethtool_rx_flow_spec *fsp; 4793 struct i40e_fdir_filter *input; 4794 u16 dest_vsi = 0, q_index = 0; 4795 struct i40e_pf *pf; 4796 int ret = -EINVAL; 4797 u8 dest_ctl; 4798 4799 if (!vsi) 4800 return -EINVAL; 4801 pf = vsi->back; 4802 4803 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED)) 4804 return -EOPNOTSUPP; 4805 4806 if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state)) 4807 return -ENOSPC; 4808 4809 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 4810 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 4811 return -EBUSY; 4812 4813 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 4814 return -EBUSY; 4815 4816 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs; 4817 4818 /* Parse the user-defined field */ 4819 if (i40e_parse_rx_flow_user_data(fsp, &userdef)) 4820 return -EINVAL; 4821 4822 /* Extended MAC field is not supported */ 4823 if (fsp->flow_type & FLOW_MAC_EXT) 4824 return -EINVAL; 4825 4826 ret = i40e_check_fdir_input_set(vsi, fsp, &userdef); 4827 if (ret) 4828 return ret; 4829 4830 if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort + 4831 pf->hw.func_caps.fd_filters_guaranteed)) { 4832 return -EINVAL; 4833 } 4834 4835 /* ring_cookie is either the drop index, or is a mask of the queue 4836 * index and VF id we wish to target. 4837 */ 4838 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) { 4839 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 4840 } else { 4841 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie); 4842 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie); 4843 4844 if (!vf) { 4845 if (ring >= vsi->num_queue_pairs) 4846 return -EINVAL; 4847 dest_vsi = vsi->id; 4848 } else { 4849 /* VFs are zero-indexed, so we subtract one here */ 4850 vf--; 4851 4852 if (vf >= pf->num_alloc_vfs) 4853 return -EINVAL; 4854 if (ring >= pf->vf[vf].num_queue_pairs) 4855 return -EINVAL; 4856 dest_vsi = pf->vf[vf].lan_vsi_id; 4857 } 4858 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX; 4859 q_index = ring; 4860 } 4861 4862 input = kzalloc(sizeof(*input), GFP_KERNEL); 4863 4864 if (!input) 4865 return -ENOMEM; 4866 4867 input->fd_id = fsp->location; 4868 input->q_index = q_index; 4869 input->dest_vsi = dest_vsi; 4870 input->dest_ctl = dest_ctl; 4871 input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID; 4872 input->cnt_index = I40E_FD_SB_STAT_IDX(pf->hw.pf_id); 4873 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4874 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4875 input->flow_type = fsp->flow_type & ~FLOW_EXT; 4876 4877 input->vlan_etype = fsp->h_ext.vlan_etype; 4878 if (!fsp->m_ext.vlan_etype && fsp->h_ext.vlan_tci) 4879 input->vlan_etype = cpu_to_be16(ETH_P_8021Q); 4880 if (fsp->m_ext.vlan_tci && input->vlan_etype) 4881 input->vlan_tag = fsp->h_ext.vlan_tci; 4882 if (input->flow_type == IPV6_USER_FLOW || 4883 input->flow_type == UDP_V6_FLOW || 4884 input->flow_type == TCP_V6_FLOW || 4885 input->flow_type == SCTP_V6_FLOW) { 4886 /* Reverse the src and dest notion, since the HW expects them 4887 * to be from Tx perspective where as the input from user is 4888 * from Rx filter view. 4889 */ 4890 input->ipl4_proto = fsp->h_u.usr_ip6_spec.l4_proto; 4891 input->dst_port = fsp->h_u.tcp_ip6_spec.psrc; 4892 input->src_port = fsp->h_u.tcp_ip6_spec.pdst; 4893 memcpy(input->dst_ip6, fsp->h_u.ah_ip6_spec.ip6src, 4894 sizeof(__be32) * 4); 4895 memcpy(input->src_ip6, fsp->h_u.ah_ip6_spec.ip6dst, 4896 sizeof(__be32) * 4); 4897 } else { 4898 /* Reverse the src and dest notion, since the HW expects them 4899 * to be from Tx perspective where as the input from user is 4900 * from Rx filter view. 4901 */ 4902 input->ipl4_proto = fsp->h_u.usr_ip4_spec.proto; 4903 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc; 4904 input->src_port = fsp->h_u.tcp_ip4_spec.pdst; 4905 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4906 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4907 } 4908 4909 if (userdef.flex_filter) { 4910 input->flex_filter = true; 4911 input->flex_word = cpu_to_be16(userdef.flex_word); 4912 input->flex_offset = userdef.flex_offset; 4913 } 4914 4915 /* Avoid programming two filters with identical match criteria. */ 4916 ret = i40e_disallow_matching_filters(vsi, input); 4917 if (ret) 4918 goto free_filter_memory; 4919 4920 /* Add the input filter to the fdir_input_list, possibly replacing 4921 * a previous filter. Do not free the input structure after adding it 4922 * to the list as this would cause a use-after-free bug. 4923 */ 4924 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL); 4925 ret = i40e_add_del_fdir(vsi, input, true); 4926 if (ret) 4927 goto remove_sw_rule; 4928 return 0; 4929 4930 remove_sw_rule: 4931 hlist_del(&input->fdir_node); 4932 pf->fdir_pf_active_filters--; 4933 free_filter_memory: 4934 kfree(input); 4935 return ret; 4936 } 4937 4938 /** 4939 * i40e_set_rxnfc - command to set RX flow classification rules 4940 * @netdev: network interface device structure 4941 * @cmd: ethtool rxnfc command 4942 * 4943 * Returns Success if the command is supported. 4944 **/ 4945 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd) 4946 { 4947 struct i40e_netdev_priv *np = netdev_priv(netdev); 4948 struct i40e_vsi *vsi = np->vsi; 4949 struct i40e_pf *pf = vsi->back; 4950 int ret = -EOPNOTSUPP; 4951 4952 switch (cmd->cmd) { 4953 case ETHTOOL_SRXFH: 4954 ret = i40e_set_rss_hash_opt(pf, cmd); 4955 break; 4956 case ETHTOOL_SRXCLSRLINS: 4957 ret = i40e_add_fdir_ethtool(vsi, cmd); 4958 break; 4959 case ETHTOOL_SRXCLSRLDEL: 4960 ret = i40e_del_fdir_entry(vsi, cmd); 4961 break; 4962 default: 4963 break; 4964 } 4965 4966 return ret; 4967 } 4968 4969 /** 4970 * i40e_max_channels - get Max number of combined channels supported 4971 * @vsi: vsi pointer 4972 **/ 4973 static unsigned int i40e_max_channels(struct i40e_vsi *vsi) 4974 { 4975 /* TODO: This code assumes DCB and FD is disabled for now. */ 4976 return vsi->alloc_queue_pairs; 4977 } 4978 4979 /** 4980 * i40e_get_channels - Get the current channels enabled and max supported etc. 4981 * @dev: network interface device structure 4982 * @ch: ethtool channels structure 4983 * 4984 * We don't support separate tx and rx queues as channels. The other count 4985 * represents how many queues are being used for control. max_combined counts 4986 * how many queue pairs we can support. They may not be mapped 1 to 1 with 4987 * q_vectors since we support a lot more queue pairs than q_vectors. 4988 **/ 4989 static void i40e_get_channels(struct net_device *dev, 4990 struct ethtool_channels *ch) 4991 { 4992 struct i40e_netdev_priv *np = netdev_priv(dev); 4993 struct i40e_vsi *vsi = np->vsi; 4994 struct i40e_pf *pf = vsi->back; 4995 4996 /* report maximum channels */ 4997 ch->max_combined = i40e_max_channels(vsi); 4998 4999 /* report info for other vector */ 5000 ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0; 5001 ch->max_other = ch->other_count; 5002 5003 /* Note: This code assumes DCB is disabled for now. */ 5004 ch->combined_count = vsi->num_queue_pairs; 5005 } 5006 5007 /** 5008 * i40e_set_channels - Set the new channels count. 5009 * @dev: network interface device structure 5010 * @ch: ethtool channels structure 5011 * 5012 * The new channels count may not be the same as requested by the user 5013 * since it gets rounded down to a power of 2 value. 5014 **/ 5015 static int i40e_set_channels(struct net_device *dev, 5016 struct ethtool_channels *ch) 5017 { 5018 const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 5019 struct i40e_netdev_priv *np = netdev_priv(dev); 5020 unsigned int count = ch->combined_count; 5021 struct i40e_vsi *vsi = np->vsi; 5022 struct i40e_pf *pf = vsi->back; 5023 struct i40e_fdir_filter *rule; 5024 struct hlist_node *node2; 5025 int new_count; 5026 int err = 0; 5027 5028 /* We do not support setting channels for any other VSI at present */ 5029 if (vsi->type != I40E_VSI_MAIN) 5030 return -EINVAL; 5031 5032 /* We do not support setting channels via ethtool when TCs are 5033 * configured through mqprio 5034 */ 5035 if (i40e_is_tc_mqprio_enabled(pf)) 5036 return -EINVAL; 5037 5038 /* verify they are not requesting separate vectors */ 5039 if (!count || ch->rx_count || ch->tx_count) 5040 return -EINVAL; 5041 5042 /* verify other_count has not changed */ 5043 if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0)) 5044 return -EINVAL; 5045 5046 /* verify the number of channels does not exceed hardware limits */ 5047 if (count > i40e_max_channels(vsi)) 5048 return -EINVAL; 5049 5050 /* verify that the number of channels does not invalidate any current 5051 * flow director rules 5052 */ 5053 hlist_for_each_entry_safe(rule, node2, 5054 &pf->fdir_filter_list, fdir_node) { 5055 if (rule->dest_ctl != drop && count <= rule->q_index) { 5056 dev_warn(&pf->pdev->dev, 5057 "Existing user defined filter %d assigns flow to queue %d\n", 5058 rule->fd_id, rule->q_index); 5059 err = -EINVAL; 5060 } 5061 } 5062 5063 if (err) { 5064 dev_err(&pf->pdev->dev, 5065 "Existing filter rules must be deleted to reduce combined channel count to %d\n", 5066 count); 5067 return err; 5068 } 5069 5070 /* update feature limits from largest to smallest supported values */ 5071 /* TODO: Flow director limit, DCB etc */ 5072 5073 /* use rss_reconfig to rebuild with new queue count and update traffic 5074 * class queue mapping 5075 */ 5076 new_count = i40e_reconfig_rss_queues(pf, count); 5077 if (new_count > 0) 5078 return 0; 5079 else 5080 return -EINVAL; 5081 } 5082 5083 /** 5084 * i40e_get_rxfh_key_size - get the RSS hash key size 5085 * @netdev: network interface device structure 5086 * 5087 * Returns the table size. 5088 **/ 5089 static u32 i40e_get_rxfh_key_size(struct net_device *netdev) 5090 { 5091 return I40E_HKEY_ARRAY_SIZE; 5092 } 5093 5094 /** 5095 * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size 5096 * @netdev: network interface device structure 5097 * 5098 * Returns the table size. 5099 **/ 5100 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev) 5101 { 5102 return I40E_HLUT_ARRAY_SIZE; 5103 } 5104 5105 /** 5106 * i40e_get_rxfh - get the rx flow hash indirection table 5107 * @netdev: network interface device structure 5108 * @indir: indirection table 5109 * @key: hash key 5110 * @hfunc: hash function 5111 * 5112 * Reads the indirection table directly from the hardware. Returns 0 on 5113 * success. 5114 **/ 5115 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 5116 u8 *hfunc) 5117 { 5118 struct i40e_netdev_priv *np = netdev_priv(netdev); 5119 struct i40e_vsi *vsi = np->vsi; 5120 u8 *lut, *seed = NULL; 5121 int ret; 5122 u16 i; 5123 5124 if (hfunc) 5125 *hfunc = ETH_RSS_HASH_TOP; 5126 5127 if (!indir) 5128 return 0; 5129 5130 seed = key; 5131 lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 5132 if (!lut) 5133 return -ENOMEM; 5134 ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE); 5135 if (ret) 5136 goto out; 5137 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 5138 indir[i] = (u32)(lut[i]); 5139 5140 out: 5141 kfree(lut); 5142 5143 return ret; 5144 } 5145 5146 /** 5147 * i40e_set_rxfh - set the rx flow hash indirection table 5148 * @netdev: network interface device structure 5149 * @indir: indirection table 5150 * @key: hash key 5151 * @hfunc: hash function to use 5152 * 5153 * Returns -EINVAL if the table specifies an invalid queue id, otherwise 5154 * returns 0 after programming the table. 5155 **/ 5156 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir, 5157 const u8 *key, const u8 hfunc) 5158 { 5159 struct i40e_netdev_priv *np = netdev_priv(netdev); 5160 struct i40e_vsi *vsi = np->vsi; 5161 struct i40e_pf *pf = vsi->back; 5162 u8 *seed = NULL; 5163 u16 i; 5164 5165 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) 5166 return -EOPNOTSUPP; 5167 5168 if (key) { 5169 if (!vsi->rss_hkey_user) { 5170 vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE, 5171 GFP_KERNEL); 5172 if (!vsi->rss_hkey_user) 5173 return -ENOMEM; 5174 } 5175 memcpy(vsi->rss_hkey_user, key, I40E_HKEY_ARRAY_SIZE); 5176 seed = vsi->rss_hkey_user; 5177 } 5178 if (!vsi->rss_lut_user) { 5179 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 5180 if (!vsi->rss_lut_user) 5181 return -ENOMEM; 5182 } 5183 5184 /* Each 32 bits pointed by 'indir' is stored with a lut entry */ 5185 if (indir) 5186 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 5187 vsi->rss_lut_user[i] = (u8)(indir[i]); 5188 else 5189 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE, 5190 vsi->rss_size); 5191 5192 return i40e_config_rss(vsi, seed, vsi->rss_lut_user, 5193 I40E_HLUT_ARRAY_SIZE); 5194 } 5195 5196 /** 5197 * i40e_get_priv_flags - report device private flags 5198 * @dev: network interface device structure 5199 * 5200 * The get string set count and the string set should be matched for each 5201 * flag returned. Add new strings for each flag to the i40e_gstrings_priv_flags 5202 * array. 5203 * 5204 * Returns a u32 bitmap of flags. 5205 **/ 5206 static u32 i40e_get_priv_flags(struct net_device *dev) 5207 { 5208 struct i40e_netdev_priv *np = netdev_priv(dev); 5209 struct i40e_vsi *vsi = np->vsi; 5210 struct i40e_pf *pf = vsi->back; 5211 u32 i, j, ret_flags = 0; 5212 5213 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 5214 const struct i40e_priv_flags *priv_flags; 5215 5216 priv_flags = &i40e_gstrings_priv_flags[i]; 5217 5218 if (priv_flags->flag & pf->flags) 5219 ret_flags |= BIT(i); 5220 } 5221 5222 if (pf->hw.pf_id != 0) 5223 return ret_flags; 5224 5225 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 5226 const struct i40e_priv_flags *priv_flags; 5227 5228 priv_flags = &i40e_gl_gstrings_priv_flags[j]; 5229 5230 if (priv_flags->flag & pf->flags) 5231 ret_flags |= BIT(i + j); 5232 } 5233 5234 return ret_flags; 5235 } 5236 5237 /** 5238 * i40e_set_priv_flags - set private flags 5239 * @dev: network interface device structure 5240 * @flags: bit flags to be set 5241 **/ 5242 static int i40e_set_priv_flags(struct net_device *dev, u32 flags) 5243 { 5244 struct i40e_netdev_priv *np = netdev_priv(dev); 5245 u64 orig_flags, new_flags, changed_flags; 5246 enum i40e_admin_queue_err adq_err; 5247 struct i40e_vsi *vsi = np->vsi; 5248 struct i40e_pf *pf = vsi->back; 5249 u32 reset_needed = 0; 5250 i40e_status status; 5251 u32 i, j; 5252 5253 orig_flags = READ_ONCE(pf->flags); 5254 new_flags = orig_flags; 5255 5256 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 5257 const struct i40e_priv_flags *priv_flags; 5258 5259 priv_flags = &i40e_gstrings_priv_flags[i]; 5260 5261 if (flags & BIT(i)) 5262 new_flags |= priv_flags->flag; 5263 else 5264 new_flags &= ~(priv_flags->flag); 5265 5266 /* If this is a read-only flag, it can't be changed */ 5267 if (priv_flags->read_only && 5268 ((orig_flags ^ new_flags) & ~BIT(i))) 5269 return -EOPNOTSUPP; 5270 } 5271 5272 if (pf->hw.pf_id != 0) 5273 goto flags_complete; 5274 5275 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 5276 const struct i40e_priv_flags *priv_flags; 5277 5278 priv_flags = &i40e_gl_gstrings_priv_flags[j]; 5279 5280 if (flags & BIT(i + j)) 5281 new_flags |= priv_flags->flag; 5282 else 5283 new_flags &= ~(priv_flags->flag); 5284 5285 /* If this is a read-only flag, it can't be changed */ 5286 if (priv_flags->read_only && 5287 ((orig_flags ^ new_flags) & ~BIT(i))) 5288 return -EOPNOTSUPP; 5289 } 5290 5291 flags_complete: 5292 changed_flags = orig_flags ^ new_flags; 5293 5294 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) 5295 reset_needed = I40E_PF_RESET_AND_REBUILD_FLAG; 5296 if (changed_flags & (I40E_FLAG_VEB_STATS_ENABLED | 5297 I40E_FLAG_LEGACY_RX | I40E_FLAG_SOURCE_PRUNING_DISABLED)) 5298 reset_needed = BIT(__I40E_PF_RESET_REQUESTED); 5299 5300 /* Before we finalize any flag changes, we need to perform some 5301 * checks to ensure that the changes are supported and safe. 5302 */ 5303 5304 /* ATR eviction is not supported on all devices */ 5305 if ((new_flags & I40E_FLAG_HW_ATR_EVICT_ENABLED) && 5306 !(pf->hw_features & I40E_HW_ATR_EVICT_CAPABLE)) 5307 return -EOPNOTSUPP; 5308 5309 /* If the driver detected FW LLDP was disabled on init, this flag could 5310 * be set, however we do not support _changing_ the flag: 5311 * - on XL710 if NPAR is enabled or FW API version < 1.7 5312 * - on X722 with FW API version < 1.6 5313 * There are situations where older FW versions/NPAR enabled PFs could 5314 * disable LLDP, however we _must_ not allow the user to enable/disable 5315 * LLDP with this flag on unsupported FW versions. 5316 */ 5317 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) { 5318 if (!(pf->hw.flags & I40E_HW_FLAG_FW_LLDP_STOPPABLE)) { 5319 dev_warn(&pf->pdev->dev, 5320 "Device does not support changing FW LLDP\n"); 5321 return -EOPNOTSUPP; 5322 } 5323 } 5324 5325 if (changed_flags & I40E_FLAG_RS_FEC && 5326 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && 5327 pf->hw.device_id != I40E_DEV_ID_25G_B) { 5328 dev_warn(&pf->pdev->dev, 5329 "Device does not support changing FEC configuration\n"); 5330 return -EOPNOTSUPP; 5331 } 5332 5333 if (changed_flags & I40E_FLAG_BASE_R_FEC && 5334 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && 5335 pf->hw.device_id != I40E_DEV_ID_25G_B && 5336 pf->hw.device_id != I40E_DEV_ID_KX_X722) { 5337 dev_warn(&pf->pdev->dev, 5338 "Device does not support changing FEC configuration\n"); 5339 return -EOPNOTSUPP; 5340 } 5341 5342 /* Process any additional changes needed as a result of flag changes. 5343 * The changed_flags value reflects the list of bits that were 5344 * changed in the code above. 5345 */ 5346 5347 /* Flush current ATR settings if ATR was disabled */ 5348 if ((changed_flags & I40E_FLAG_FD_ATR_ENABLED) && 5349 !(new_flags & I40E_FLAG_FD_ATR_ENABLED)) { 5350 set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state); 5351 set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state); 5352 } 5353 5354 if (changed_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT) { 5355 u16 sw_flags = 0, valid_flags = 0; 5356 int ret; 5357 5358 if (!(new_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT)) 5359 sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 5360 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 5361 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags, 5362 0, NULL); 5363 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) { 5364 dev_info(&pf->pdev->dev, 5365 "couldn't set switch config bits, err %s aq_err %s\n", 5366 i40e_stat_str(&pf->hw, ret), 5367 i40e_aq_str(&pf->hw, 5368 pf->hw.aq.asq_last_status)); 5369 /* not a fatal problem, just keep going */ 5370 } 5371 } 5372 5373 if ((changed_flags & I40E_FLAG_RS_FEC) || 5374 (changed_flags & I40E_FLAG_BASE_R_FEC)) { 5375 u8 fec_cfg = 0; 5376 5377 if (new_flags & I40E_FLAG_RS_FEC && 5378 new_flags & I40E_FLAG_BASE_R_FEC) { 5379 fec_cfg = I40E_AQ_SET_FEC_AUTO; 5380 } else if (new_flags & I40E_FLAG_RS_FEC) { 5381 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS | 5382 I40E_AQ_SET_FEC_ABILITY_RS); 5383 } else if (new_flags & I40E_FLAG_BASE_R_FEC) { 5384 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR | 5385 I40E_AQ_SET_FEC_ABILITY_KR); 5386 } 5387 if (i40e_set_fec_cfg(dev, fec_cfg)) 5388 dev_warn(&pf->pdev->dev, "Cannot change FEC config\n"); 5389 } 5390 5391 if ((changed_flags & I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) && 5392 (orig_flags & I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED)) { 5393 dev_err(&pf->pdev->dev, 5394 "Setting link-down-on-close not supported on this port (because total-port-shutdown is enabled)\n"); 5395 return -EOPNOTSUPP; 5396 } 5397 5398 if ((changed_flags & I40E_FLAG_VF_VLAN_PRUNING) && 5399 pf->num_alloc_vfs) { 5400 dev_warn(&pf->pdev->dev, 5401 "Changing vf-vlan-pruning flag while VF(s) are active is not supported\n"); 5402 return -EOPNOTSUPP; 5403 } 5404 5405 if ((changed_flags & new_flags & 5406 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) && 5407 (new_flags & I40E_FLAG_MFP_ENABLED)) 5408 dev_warn(&pf->pdev->dev, 5409 "Turning on link-down-on-close flag may affect other partitions\n"); 5410 5411 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) { 5412 if (new_flags & I40E_FLAG_DISABLE_FW_LLDP) { 5413 #ifdef CONFIG_I40E_DCB 5414 i40e_dcb_sw_default_config(pf); 5415 #endif /* CONFIG_I40E_DCB */ 5416 i40e_aq_cfg_lldp_mib_change_event(&pf->hw, false, NULL); 5417 i40e_aq_stop_lldp(&pf->hw, true, false, NULL); 5418 } else { 5419 status = i40e_aq_start_lldp(&pf->hw, false, NULL); 5420 if (status) { 5421 adq_err = pf->hw.aq.asq_last_status; 5422 switch (adq_err) { 5423 case I40E_AQ_RC_EEXIST: 5424 dev_warn(&pf->pdev->dev, 5425 "FW LLDP agent is already running\n"); 5426 reset_needed = 0; 5427 break; 5428 case I40E_AQ_RC_EPERM: 5429 dev_warn(&pf->pdev->dev, 5430 "Device configuration forbids SW from starting the LLDP agent.\n"); 5431 return -EINVAL; 5432 case I40E_AQ_RC_EAGAIN: 5433 dev_warn(&pf->pdev->dev, 5434 "Stop FW LLDP agent command is still being processed, please try again in a second.\n"); 5435 return -EBUSY; 5436 default: 5437 dev_warn(&pf->pdev->dev, 5438 "Starting FW LLDP agent failed: error: %s, %s\n", 5439 i40e_stat_str(&pf->hw, 5440 status), 5441 i40e_aq_str(&pf->hw, 5442 adq_err)); 5443 return -EINVAL; 5444 } 5445 } 5446 } 5447 } 5448 5449 /* Now that we've checked to ensure that the new flags are valid, load 5450 * them into place. Since we only modify flags either (a) during 5451 * initialization or (b) while holding the RTNL lock, we don't need 5452 * anything fancy here. 5453 */ 5454 pf->flags = new_flags; 5455 5456 /* Issue reset to cause things to take effect, as additional bits 5457 * are added we will need to create a mask of bits requiring reset 5458 */ 5459 if (reset_needed) 5460 i40e_do_reset(pf, reset_needed, true); 5461 5462 return 0; 5463 } 5464 5465 /** 5466 * i40e_get_module_info - get (Q)SFP+ module type info 5467 * @netdev: network interface device structure 5468 * @modinfo: module EEPROM size and layout information structure 5469 **/ 5470 static int i40e_get_module_info(struct net_device *netdev, 5471 struct ethtool_modinfo *modinfo) 5472 { 5473 struct i40e_netdev_priv *np = netdev_priv(netdev); 5474 struct i40e_vsi *vsi = np->vsi; 5475 struct i40e_pf *pf = vsi->back; 5476 struct i40e_hw *hw = &pf->hw; 5477 u32 sff8472_comp = 0; 5478 u32 sff8472_swap = 0; 5479 u32 sff8636_rev = 0; 5480 i40e_status status; 5481 u32 type = 0; 5482 5483 /* Check if firmware supports reading module EEPROM. */ 5484 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) { 5485 netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n"); 5486 return -EINVAL; 5487 } 5488 5489 status = i40e_update_link_info(hw); 5490 if (status) 5491 return -EIO; 5492 5493 if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) { 5494 netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n"); 5495 return -EINVAL; 5496 } 5497 5498 type = hw->phy.link_info.module_type[0]; 5499 5500 switch (type) { 5501 case I40E_MODULE_TYPE_SFP: 5502 status = i40e_aq_get_phy_register(hw, 5503 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5504 I40E_I2C_EEPROM_DEV_ADDR, true, 5505 I40E_MODULE_SFF_8472_COMP, 5506 &sff8472_comp, NULL); 5507 if (status) 5508 return -EIO; 5509 5510 status = i40e_aq_get_phy_register(hw, 5511 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5512 I40E_I2C_EEPROM_DEV_ADDR, true, 5513 I40E_MODULE_SFF_8472_SWAP, 5514 &sff8472_swap, NULL); 5515 if (status) 5516 return -EIO; 5517 5518 /* Check if the module requires address swap to access 5519 * the other EEPROM memory page. 5520 */ 5521 if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) { 5522 netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n"); 5523 modinfo->type = ETH_MODULE_SFF_8079; 5524 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5525 } else if (sff8472_comp == 0x00) { 5526 /* Module is not SFF-8472 compliant */ 5527 modinfo->type = ETH_MODULE_SFF_8079; 5528 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5529 } else if (!(sff8472_swap & I40E_MODULE_SFF_DDM_IMPLEMENTED)) { 5530 /* Module is SFF-8472 compliant but doesn't implement 5531 * Digital Diagnostic Monitoring (DDM). 5532 */ 5533 modinfo->type = ETH_MODULE_SFF_8079; 5534 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5535 } else { 5536 modinfo->type = ETH_MODULE_SFF_8472; 5537 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; 5538 } 5539 break; 5540 case I40E_MODULE_TYPE_QSFP_PLUS: 5541 /* Read from memory page 0. */ 5542 status = i40e_aq_get_phy_register(hw, 5543 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5544 0, true, 5545 I40E_MODULE_REVISION_ADDR, 5546 &sff8636_rev, NULL); 5547 if (status) 5548 return -EIO; 5549 /* Determine revision compliance byte */ 5550 if (sff8636_rev > 0x02) { 5551 /* Module is SFF-8636 compliant */ 5552 modinfo->type = ETH_MODULE_SFF_8636; 5553 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5554 } else { 5555 modinfo->type = ETH_MODULE_SFF_8436; 5556 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5557 } 5558 break; 5559 case I40E_MODULE_TYPE_QSFP28: 5560 modinfo->type = ETH_MODULE_SFF_8636; 5561 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5562 break; 5563 default: 5564 netdev_err(vsi->netdev, "Module type unrecognized\n"); 5565 return -EINVAL; 5566 } 5567 return 0; 5568 } 5569 5570 /** 5571 * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents 5572 * @netdev: network interface device structure 5573 * @ee: EEPROM dump request structure 5574 * @data: buffer to be filled with EEPROM contents 5575 **/ 5576 static int i40e_get_module_eeprom(struct net_device *netdev, 5577 struct ethtool_eeprom *ee, 5578 u8 *data) 5579 { 5580 struct i40e_netdev_priv *np = netdev_priv(netdev); 5581 struct i40e_vsi *vsi = np->vsi; 5582 struct i40e_pf *pf = vsi->back; 5583 struct i40e_hw *hw = &pf->hw; 5584 bool is_sfp = false; 5585 i40e_status status; 5586 u32 value = 0; 5587 int i; 5588 5589 if (!ee || !ee->len || !data) 5590 return -EINVAL; 5591 5592 if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP) 5593 is_sfp = true; 5594 5595 for (i = 0; i < ee->len; i++) { 5596 u32 offset = i + ee->offset; 5597 u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0; 5598 5599 /* Check if we need to access the other memory page */ 5600 if (is_sfp) { 5601 if (offset >= ETH_MODULE_SFF_8079_LEN) { 5602 offset -= ETH_MODULE_SFF_8079_LEN; 5603 addr = I40E_I2C_EEPROM_DEV_ADDR2; 5604 } 5605 } else { 5606 while (offset >= ETH_MODULE_SFF_8436_LEN) { 5607 /* Compute memory page number and offset. */ 5608 offset -= ETH_MODULE_SFF_8436_LEN / 2; 5609 addr++; 5610 } 5611 } 5612 5613 status = i40e_aq_get_phy_register(hw, 5614 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5615 addr, true, offset, &value, NULL); 5616 if (status) 5617 return -EIO; 5618 data[i] = value; 5619 } 5620 return 0; 5621 } 5622 5623 static int i40e_get_eee(struct net_device *netdev, struct ethtool_eee *edata) 5624 { 5625 struct i40e_netdev_priv *np = netdev_priv(netdev); 5626 struct i40e_aq_get_phy_abilities_resp phy_cfg; 5627 enum i40e_status_code status = 0; 5628 struct i40e_vsi *vsi = np->vsi; 5629 struct i40e_pf *pf = vsi->back; 5630 struct i40e_hw *hw = &pf->hw; 5631 5632 /* Get initial PHY capabilities */ 5633 status = i40e_aq_get_phy_capabilities(hw, false, true, &phy_cfg, NULL); 5634 if (status) 5635 return -EAGAIN; 5636 5637 /* Check whether NIC configuration is compatible with Energy Efficient 5638 * Ethernet (EEE) mode. 5639 */ 5640 if (phy_cfg.eee_capability == 0) 5641 return -EOPNOTSUPP; 5642 5643 edata->supported = SUPPORTED_Autoneg; 5644 edata->lp_advertised = edata->supported; 5645 5646 /* Get current configuration */ 5647 status = i40e_aq_get_phy_capabilities(hw, false, false, &phy_cfg, NULL); 5648 if (status) 5649 return -EAGAIN; 5650 5651 edata->advertised = phy_cfg.eee_capability ? SUPPORTED_Autoneg : 0U; 5652 edata->eee_enabled = !!edata->advertised; 5653 edata->tx_lpi_enabled = pf->stats.tx_lpi_status; 5654 5655 edata->eee_active = pf->stats.tx_lpi_status && pf->stats.rx_lpi_status; 5656 5657 return 0; 5658 } 5659 5660 static int i40e_is_eee_param_supported(struct net_device *netdev, 5661 struct ethtool_eee *edata) 5662 { 5663 struct i40e_netdev_priv *np = netdev_priv(netdev); 5664 struct i40e_vsi *vsi = np->vsi; 5665 struct i40e_pf *pf = vsi->back; 5666 struct i40e_ethtool_not_used { 5667 u32 value; 5668 const char *name; 5669 } param[] = { 5670 {edata->advertised & ~SUPPORTED_Autoneg, "advertise"}, 5671 {edata->tx_lpi_timer, "tx-timer"}, 5672 {edata->tx_lpi_enabled != pf->stats.tx_lpi_status, "tx-lpi"} 5673 }; 5674 int i; 5675 5676 for (i = 0; i < ARRAY_SIZE(param); i++) { 5677 if (param[i].value) { 5678 netdev_info(netdev, 5679 "EEE setting %s not supported\n", 5680 param[i].name); 5681 return -EOPNOTSUPP; 5682 } 5683 } 5684 5685 return 0; 5686 } 5687 5688 static int i40e_set_eee(struct net_device *netdev, struct ethtool_eee *edata) 5689 { 5690 struct i40e_netdev_priv *np = netdev_priv(netdev); 5691 struct i40e_aq_get_phy_abilities_resp abilities; 5692 enum i40e_status_code status = I40E_SUCCESS; 5693 struct i40e_aq_set_phy_config config; 5694 struct i40e_vsi *vsi = np->vsi; 5695 struct i40e_pf *pf = vsi->back; 5696 struct i40e_hw *hw = &pf->hw; 5697 __le16 eee_capability; 5698 5699 /* Deny parameters we don't support */ 5700 if (i40e_is_eee_param_supported(netdev, edata)) 5701 return -EOPNOTSUPP; 5702 5703 /* Get initial PHY capabilities */ 5704 status = i40e_aq_get_phy_capabilities(hw, false, true, &abilities, 5705 NULL); 5706 if (status) 5707 return -EAGAIN; 5708 5709 /* Check whether NIC configuration is compatible with Energy Efficient 5710 * Ethernet (EEE) mode. 5711 */ 5712 if (abilities.eee_capability == 0) 5713 return -EOPNOTSUPP; 5714 5715 /* Cache initial EEE capability */ 5716 eee_capability = abilities.eee_capability; 5717 5718 /* Get current PHY configuration */ 5719 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 5720 NULL); 5721 if (status) 5722 return -EAGAIN; 5723 5724 /* Cache current PHY configuration */ 5725 config.phy_type = abilities.phy_type; 5726 config.phy_type_ext = abilities.phy_type_ext; 5727 config.link_speed = abilities.link_speed; 5728 config.abilities = abilities.abilities | 5729 I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 5730 config.eeer = abilities.eeer_val; 5731 config.low_power_ctrl = abilities.d3_lpan; 5732 config.fec_config = abilities.fec_cfg_curr_mod_ext_info & 5733 I40E_AQ_PHY_FEC_CONFIG_MASK; 5734 5735 /* Set desired EEE state */ 5736 if (edata->eee_enabled) { 5737 config.eee_capability = eee_capability; 5738 config.eeer |= cpu_to_le32(I40E_PRTPM_EEER_TX_LPI_EN_MASK); 5739 } else { 5740 config.eee_capability = 0; 5741 config.eeer &= cpu_to_le32(~I40E_PRTPM_EEER_TX_LPI_EN_MASK); 5742 } 5743 5744 /* Apply modified PHY configuration */ 5745 status = i40e_aq_set_phy_config(hw, &config, NULL); 5746 if (status) 5747 return -EAGAIN; 5748 5749 return 0; 5750 } 5751 5752 static const struct ethtool_ops i40e_ethtool_recovery_mode_ops = { 5753 .get_drvinfo = i40e_get_drvinfo, 5754 .set_eeprom = i40e_set_eeprom, 5755 .get_eeprom_len = i40e_get_eeprom_len, 5756 .get_eeprom = i40e_get_eeprom, 5757 }; 5758 5759 static const struct ethtool_ops i40e_ethtool_ops = { 5760 .supported_coalesce_params = ETHTOOL_COALESCE_USECS | 5761 ETHTOOL_COALESCE_MAX_FRAMES_IRQ | 5762 ETHTOOL_COALESCE_USE_ADAPTIVE | 5763 ETHTOOL_COALESCE_RX_USECS_HIGH | 5764 ETHTOOL_COALESCE_TX_USECS_HIGH, 5765 .get_drvinfo = i40e_get_drvinfo, 5766 .get_regs_len = i40e_get_regs_len, 5767 .get_regs = i40e_get_regs, 5768 .nway_reset = i40e_nway_reset, 5769 .get_link = ethtool_op_get_link, 5770 .get_wol = i40e_get_wol, 5771 .set_wol = i40e_set_wol, 5772 .set_eeprom = i40e_set_eeprom, 5773 .get_eeprom_len = i40e_get_eeprom_len, 5774 .get_eeprom = i40e_get_eeprom, 5775 .get_ringparam = i40e_get_ringparam, 5776 .set_ringparam = i40e_set_ringparam, 5777 .get_pauseparam = i40e_get_pauseparam, 5778 .set_pauseparam = i40e_set_pauseparam, 5779 .get_msglevel = i40e_get_msglevel, 5780 .set_msglevel = i40e_set_msglevel, 5781 .get_rxnfc = i40e_get_rxnfc, 5782 .set_rxnfc = i40e_set_rxnfc, 5783 .self_test = i40e_diag_test, 5784 .get_strings = i40e_get_strings, 5785 .get_eee = i40e_get_eee, 5786 .set_eee = i40e_set_eee, 5787 .set_phys_id = i40e_set_phys_id, 5788 .get_sset_count = i40e_get_sset_count, 5789 .get_ethtool_stats = i40e_get_ethtool_stats, 5790 .get_coalesce = i40e_get_coalesce, 5791 .set_coalesce = i40e_set_coalesce, 5792 .get_rxfh_key_size = i40e_get_rxfh_key_size, 5793 .get_rxfh_indir_size = i40e_get_rxfh_indir_size, 5794 .get_rxfh = i40e_get_rxfh, 5795 .set_rxfh = i40e_set_rxfh, 5796 .get_channels = i40e_get_channels, 5797 .set_channels = i40e_set_channels, 5798 .get_module_info = i40e_get_module_info, 5799 .get_module_eeprom = i40e_get_module_eeprom, 5800 .get_ts_info = i40e_get_ts_info, 5801 .get_priv_flags = i40e_get_priv_flags, 5802 .set_priv_flags = i40e_set_priv_flags, 5803 .get_per_queue_coalesce = i40e_get_per_queue_coalesce, 5804 .set_per_queue_coalesce = i40e_set_per_queue_coalesce, 5805 .get_link_ksettings = i40e_get_link_ksettings, 5806 .set_link_ksettings = i40e_set_link_ksettings, 5807 .get_fecparam = i40e_get_fec_param, 5808 .set_fecparam = i40e_set_fec_param, 5809 .flash_device = i40e_ddp_flash, 5810 }; 5811 5812 void i40e_set_ethtool_ops(struct net_device *netdev) 5813 { 5814 struct i40e_netdev_priv *np = netdev_priv(netdev); 5815 struct i40e_pf *pf = np->vsi->back; 5816 5817 if (!test_bit(__I40E_RECOVERY_MODE, pf->state)) 5818 netdev->ethtool_ops = &i40e_ethtool_ops; 5819 else 5820 netdev->ethtool_ops = &i40e_ethtool_recovery_mode_ops; 5821 } 5822