1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright(c) 2013 - 2018 Intel Corporation. */ 3 4 /* ethtool support for i40e */ 5 6 #include "i40e_devids.h" 7 #include "i40e_diag.h" 8 #include "i40e_txrx_common.h" 9 #include "i40e_virtchnl_pf.h" 10 11 /* ethtool statistics helpers */ 12 13 /** 14 * struct i40e_stats - definition for an ethtool statistic 15 * @stat_string: statistic name to display in ethtool -S output 16 * @sizeof_stat: the sizeof() the stat, must be no greater than sizeof(u64) 17 * @stat_offset: offsetof() the stat from a base pointer 18 * 19 * This structure defines a statistic to be added to the ethtool stats buffer. 20 * It defines a statistic as offset from a common base pointer. Stats should 21 * be defined in constant arrays using the I40E_STAT macro, with every element 22 * of the array using the same _type for calculating the sizeof_stat and 23 * stat_offset. 24 * 25 * The @sizeof_stat is expected to be sizeof(u8), sizeof(u16), sizeof(u32) or 26 * sizeof(u64). Other sizes are not expected and will produce a WARN_ONCE from 27 * the i40e_add_ethtool_stat() helper function. 28 * 29 * The @stat_string is interpreted as a format string, allowing formatted 30 * values to be inserted while looping over multiple structures for a given 31 * statistics array. Thus, every statistic string in an array should have the 32 * same type and number of format specifiers, to be formatted by variadic 33 * arguments to the i40e_add_stat_string() helper function. 34 **/ 35 struct i40e_stats { 36 char stat_string[ETH_GSTRING_LEN]; 37 int sizeof_stat; 38 int stat_offset; 39 }; 40 41 /* Helper macro to define an i40e_stat structure with proper size and type. 42 * Use this when defining constant statistics arrays. Note that @_type expects 43 * only a type name and is used multiple times. 44 */ 45 #define I40E_STAT(_type, _name, _stat) { \ 46 .stat_string = _name, \ 47 .sizeof_stat = sizeof_field(_type, _stat), \ 48 .stat_offset = offsetof(_type, _stat) \ 49 } 50 51 /* Helper macro for defining some statistics directly copied from the netdev 52 * stats structure. 53 */ 54 #define I40E_NETDEV_STAT(_net_stat) \ 55 I40E_STAT(struct rtnl_link_stats64, #_net_stat, _net_stat) 56 57 /* Helper macro for defining some statistics related to queues */ 58 #define I40E_QUEUE_STAT(_name, _stat) \ 59 I40E_STAT(struct i40e_ring, _name, _stat) 60 61 /* Stats associated with a Tx or Rx ring */ 62 static const struct i40e_stats i40e_gstrings_queue_stats[] = { 63 I40E_QUEUE_STAT("%s-%u.packets", stats.packets), 64 I40E_QUEUE_STAT("%s-%u.bytes", stats.bytes), 65 }; 66 67 /** 68 * i40e_add_one_ethtool_stat - copy the stat into the supplied buffer 69 * @data: location to store the stat value 70 * @pointer: basis for where to copy from 71 * @stat: the stat definition 72 * 73 * Copies the stat data defined by the pointer and stat structure pair into 74 * the memory supplied as data. Used to implement i40e_add_ethtool_stats and 75 * i40e_add_queue_stats. If the pointer is null, data will be zero'd. 76 */ 77 static void 78 i40e_add_one_ethtool_stat(u64 *data, void *pointer, 79 const struct i40e_stats *stat) 80 { 81 char *p; 82 83 if (!pointer) { 84 /* ensure that the ethtool data buffer is zero'd for any stats 85 * which don't have a valid pointer. 86 */ 87 *data = 0; 88 return; 89 } 90 91 p = (char *)pointer + stat->stat_offset; 92 switch (stat->sizeof_stat) { 93 case sizeof(u64): 94 *data = *((u64 *)p); 95 break; 96 case sizeof(u32): 97 *data = *((u32 *)p); 98 break; 99 case sizeof(u16): 100 *data = *((u16 *)p); 101 break; 102 case sizeof(u8): 103 *data = *((u8 *)p); 104 break; 105 default: 106 WARN_ONCE(1, "unexpected stat size for %s", 107 stat->stat_string); 108 *data = 0; 109 } 110 } 111 112 /** 113 * __i40e_add_ethtool_stats - copy stats into the ethtool supplied buffer 114 * @data: ethtool stats buffer 115 * @pointer: location to copy stats from 116 * @stats: array of stats to copy 117 * @size: the size of the stats definition 118 * 119 * Copy the stats defined by the stats array using the pointer as a base into 120 * the data buffer supplied by ethtool. Updates the data pointer to point to 121 * the next empty location for successive calls to __i40e_add_ethtool_stats. 122 * If pointer is null, set the data values to zero and update the pointer to 123 * skip these stats. 124 **/ 125 static void 126 __i40e_add_ethtool_stats(u64 **data, void *pointer, 127 const struct i40e_stats stats[], 128 const unsigned int size) 129 { 130 unsigned int i; 131 132 for (i = 0; i < size; i++) 133 i40e_add_one_ethtool_stat((*data)++, pointer, &stats[i]); 134 } 135 136 /** 137 * i40e_add_ethtool_stats - copy stats into ethtool supplied buffer 138 * @data: ethtool stats buffer 139 * @pointer: location where stats are stored 140 * @stats: static const array of stat definitions 141 * 142 * Macro to ease the use of __i40e_add_ethtool_stats by taking a static 143 * constant stats array and passing the ARRAY_SIZE(). This avoids typos by 144 * ensuring that we pass the size associated with the given stats array. 145 * 146 * The parameter @stats is evaluated twice, so parameters with side effects 147 * should be avoided. 148 **/ 149 #define i40e_add_ethtool_stats(data, pointer, stats) \ 150 __i40e_add_ethtool_stats(data, pointer, stats, ARRAY_SIZE(stats)) 151 152 /** 153 * i40e_add_queue_stats - copy queue statistics into supplied buffer 154 * @data: ethtool stats buffer 155 * @ring: the ring to copy 156 * 157 * Queue statistics must be copied while protected by 158 * u64_stats_fetch_begin, so we can't directly use i40e_add_ethtool_stats. 159 * Assumes that queue stats are defined in i40e_gstrings_queue_stats. If the 160 * ring pointer is null, zero out the queue stat values and update the data 161 * pointer. Otherwise safely copy the stats from the ring into the supplied 162 * buffer and update the data pointer when finished. 163 * 164 * This function expects to be called while under rcu_read_lock(). 165 **/ 166 static void 167 i40e_add_queue_stats(u64 **data, struct i40e_ring *ring) 168 { 169 const unsigned int size = ARRAY_SIZE(i40e_gstrings_queue_stats); 170 const struct i40e_stats *stats = i40e_gstrings_queue_stats; 171 unsigned int start; 172 unsigned int i; 173 174 /* To avoid invalid statistics values, ensure that we keep retrying 175 * the copy until we get a consistent value according to 176 * u64_stats_fetch_retry. But first, make sure our ring is 177 * non-null before attempting to access its syncp. 178 */ 179 do { 180 start = !ring ? 0 : u64_stats_fetch_begin(&ring->syncp); 181 for (i = 0; i < size; i++) { 182 i40e_add_one_ethtool_stat(&(*data)[i], ring, 183 &stats[i]); 184 } 185 } while (ring && u64_stats_fetch_retry(&ring->syncp, start)); 186 187 /* Once we successfully copy the stats in, update the data pointer */ 188 *data += size; 189 } 190 191 /** 192 * __i40e_add_stat_strings - copy stat strings into ethtool buffer 193 * @p: ethtool supplied buffer 194 * @stats: stat definitions array 195 * @size: size of the stats array 196 * 197 * Format and copy the strings described by stats into the buffer pointed at 198 * by p. 199 **/ 200 static void __i40e_add_stat_strings(u8 **p, const struct i40e_stats stats[], 201 const unsigned int size, ...) 202 { 203 unsigned int i; 204 205 for (i = 0; i < size; i++) { 206 va_list args; 207 208 va_start(args, size); 209 vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args); 210 *p += ETH_GSTRING_LEN; 211 va_end(args); 212 } 213 } 214 215 /** 216 * i40e_add_stat_strings - copy stat strings into ethtool buffer 217 * @p: ethtool supplied buffer 218 * @stats: stat definitions array 219 * 220 * Format and copy the strings described by the const static stats value into 221 * the buffer pointed at by p. 222 * 223 * The parameter @stats is evaluated twice, so parameters with side effects 224 * should be avoided. Additionally, stats must be an array such that 225 * ARRAY_SIZE can be called on it. 226 **/ 227 #define i40e_add_stat_strings(p, stats, ...) \ 228 __i40e_add_stat_strings(p, stats, ARRAY_SIZE(stats), ## __VA_ARGS__) 229 230 #define I40E_PF_STAT(_name, _stat) \ 231 I40E_STAT(struct i40e_pf, _name, _stat) 232 #define I40E_VSI_STAT(_name, _stat) \ 233 I40E_STAT(struct i40e_vsi, _name, _stat) 234 #define I40E_VEB_STAT(_name, _stat) \ 235 I40E_STAT(struct i40e_veb, _name, _stat) 236 #define I40E_VEB_TC_STAT(_name, _stat) \ 237 I40E_STAT(struct i40e_cp_veb_tc_stats, _name, _stat) 238 #define I40E_PFC_STAT(_name, _stat) \ 239 I40E_STAT(struct i40e_pfc_stats, _name, _stat) 240 241 static const struct i40e_stats i40e_gstrings_net_stats[] = { 242 I40E_NETDEV_STAT(rx_packets), 243 I40E_NETDEV_STAT(tx_packets), 244 I40E_NETDEV_STAT(rx_bytes), 245 I40E_NETDEV_STAT(tx_bytes), 246 I40E_NETDEV_STAT(rx_errors), 247 I40E_NETDEV_STAT(tx_errors), 248 I40E_NETDEV_STAT(rx_dropped), 249 I40E_NETDEV_STAT(tx_dropped), 250 I40E_NETDEV_STAT(collisions), 251 I40E_NETDEV_STAT(rx_length_errors), 252 I40E_NETDEV_STAT(rx_crc_errors), 253 }; 254 255 static const struct i40e_stats i40e_gstrings_veb_stats[] = { 256 I40E_VEB_STAT("veb.rx_bytes", stats.rx_bytes), 257 I40E_VEB_STAT("veb.tx_bytes", stats.tx_bytes), 258 I40E_VEB_STAT("veb.rx_unicast", stats.rx_unicast), 259 I40E_VEB_STAT("veb.tx_unicast", stats.tx_unicast), 260 I40E_VEB_STAT("veb.rx_multicast", stats.rx_multicast), 261 I40E_VEB_STAT("veb.tx_multicast", stats.tx_multicast), 262 I40E_VEB_STAT("veb.rx_broadcast", stats.rx_broadcast), 263 I40E_VEB_STAT("veb.tx_broadcast", stats.tx_broadcast), 264 I40E_VEB_STAT("veb.rx_discards", stats.rx_discards), 265 I40E_VEB_STAT("veb.tx_discards", stats.tx_discards), 266 I40E_VEB_STAT("veb.tx_errors", stats.tx_errors), 267 I40E_VEB_STAT("veb.rx_unknown_protocol", stats.rx_unknown_protocol), 268 }; 269 270 struct i40e_cp_veb_tc_stats { 271 u64 tc_rx_packets; 272 u64 tc_rx_bytes; 273 u64 tc_tx_packets; 274 u64 tc_tx_bytes; 275 }; 276 277 static const struct i40e_stats i40e_gstrings_veb_tc_stats[] = { 278 I40E_VEB_TC_STAT("veb.tc_%u_tx_packets", tc_tx_packets), 279 I40E_VEB_TC_STAT("veb.tc_%u_tx_bytes", tc_tx_bytes), 280 I40E_VEB_TC_STAT("veb.tc_%u_rx_packets", tc_rx_packets), 281 I40E_VEB_TC_STAT("veb.tc_%u_rx_bytes", tc_rx_bytes), 282 }; 283 284 static const struct i40e_stats i40e_gstrings_misc_stats[] = { 285 I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast), 286 I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast), 287 I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast), 288 I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast), 289 I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast), 290 I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast), 291 I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol), 292 I40E_VSI_STAT("tx_linearize", tx_linearize), 293 I40E_VSI_STAT("tx_force_wb", tx_force_wb), 294 I40E_VSI_STAT("tx_busy", tx_busy), 295 I40E_VSI_STAT("tx_stopped", tx_stopped), 296 I40E_VSI_STAT("rx_alloc_fail", rx_buf_failed), 297 I40E_VSI_STAT("rx_pg_alloc_fail", rx_page_failed), 298 I40E_VSI_STAT("rx_cache_reuse", rx_page_reuse), 299 I40E_VSI_STAT("rx_cache_alloc", rx_page_alloc), 300 I40E_VSI_STAT("rx_cache_waive", rx_page_waive), 301 I40E_VSI_STAT("rx_cache_busy", rx_page_busy), 302 I40E_VSI_STAT("tx_restart", tx_restart), 303 }; 304 305 /* These PF_STATs might look like duplicates of some NETDEV_STATs, 306 * but they are separate. This device supports Virtualization, and 307 * as such might have several netdevs supporting VMDq and FCoE going 308 * through a single port. The NETDEV_STATs are for individual netdevs 309 * seen at the top of the stack, and the PF_STATs are for the physical 310 * function at the bottom of the stack hosting those netdevs. 311 * 312 * The PF_STATs are appended to the netdev stats only when ethtool -S 313 * is queried on the base PF netdev, not on the VMDq or FCoE netdev. 314 */ 315 static const struct i40e_stats i40e_gstrings_stats[] = { 316 I40E_PF_STAT("port.rx_bytes", stats.eth.rx_bytes), 317 I40E_PF_STAT("port.tx_bytes", stats.eth.tx_bytes), 318 I40E_PF_STAT("port.rx_unicast", stats.eth.rx_unicast), 319 I40E_PF_STAT("port.tx_unicast", stats.eth.tx_unicast), 320 I40E_PF_STAT("port.rx_multicast", stats.eth.rx_multicast), 321 I40E_PF_STAT("port.tx_multicast", stats.eth.tx_multicast), 322 I40E_PF_STAT("port.rx_broadcast", stats.eth.rx_broadcast), 323 I40E_PF_STAT("port.tx_broadcast", stats.eth.tx_broadcast), 324 I40E_PF_STAT("port.tx_errors", stats.eth.tx_errors), 325 I40E_PF_STAT("port.rx_dropped", stats.eth.rx_discards), 326 I40E_PF_STAT("port.tx_dropped_link_down", stats.tx_dropped_link_down), 327 I40E_PF_STAT("port.rx_crc_errors", stats.crc_errors), 328 I40E_PF_STAT("port.illegal_bytes", stats.illegal_bytes), 329 I40E_PF_STAT("port.mac_local_faults", stats.mac_local_faults), 330 I40E_PF_STAT("port.mac_remote_faults", stats.mac_remote_faults), 331 I40E_PF_STAT("port.tx_timeout", tx_timeout_count), 332 I40E_PF_STAT("port.rx_csum_bad", hw_csum_rx_error), 333 I40E_PF_STAT("port.rx_length_errors", stats.rx_length_errors), 334 I40E_PF_STAT("port.link_xon_rx", stats.link_xon_rx), 335 I40E_PF_STAT("port.link_xoff_rx", stats.link_xoff_rx), 336 I40E_PF_STAT("port.link_xon_tx", stats.link_xon_tx), 337 I40E_PF_STAT("port.link_xoff_tx", stats.link_xoff_tx), 338 I40E_PF_STAT("port.rx_size_64", stats.rx_size_64), 339 I40E_PF_STAT("port.rx_size_127", stats.rx_size_127), 340 I40E_PF_STAT("port.rx_size_255", stats.rx_size_255), 341 I40E_PF_STAT("port.rx_size_511", stats.rx_size_511), 342 I40E_PF_STAT("port.rx_size_1023", stats.rx_size_1023), 343 I40E_PF_STAT("port.rx_size_1522", stats.rx_size_1522), 344 I40E_PF_STAT("port.rx_size_big", stats.rx_size_big), 345 I40E_PF_STAT("port.tx_size_64", stats.tx_size_64), 346 I40E_PF_STAT("port.tx_size_127", stats.tx_size_127), 347 I40E_PF_STAT("port.tx_size_255", stats.tx_size_255), 348 I40E_PF_STAT("port.tx_size_511", stats.tx_size_511), 349 I40E_PF_STAT("port.tx_size_1023", stats.tx_size_1023), 350 I40E_PF_STAT("port.tx_size_1522", stats.tx_size_1522), 351 I40E_PF_STAT("port.tx_size_big", stats.tx_size_big), 352 I40E_PF_STAT("port.rx_undersize", stats.rx_undersize), 353 I40E_PF_STAT("port.rx_fragments", stats.rx_fragments), 354 I40E_PF_STAT("port.rx_oversize", stats.rx_oversize), 355 I40E_PF_STAT("port.rx_jabber", stats.rx_jabber), 356 I40E_PF_STAT("port.VF_admin_queue_requests", vf_aq_requests), 357 I40E_PF_STAT("port.arq_overflows", arq_overflows), 358 I40E_PF_STAT("port.tx_hwtstamp_timeouts", tx_hwtstamp_timeouts), 359 I40E_PF_STAT("port.rx_hwtstamp_cleared", rx_hwtstamp_cleared), 360 I40E_PF_STAT("port.tx_hwtstamp_skipped", tx_hwtstamp_skipped), 361 I40E_PF_STAT("port.fdir_flush_cnt", fd_flush_cnt), 362 I40E_PF_STAT("port.fdir_atr_match", stats.fd_atr_match), 363 I40E_PF_STAT("port.fdir_atr_tunnel_match", stats.fd_atr_tunnel_match), 364 I40E_PF_STAT("port.fdir_atr_status", stats.fd_atr_status), 365 I40E_PF_STAT("port.fdir_sb_match", stats.fd_sb_match), 366 I40E_PF_STAT("port.fdir_sb_status", stats.fd_sb_status), 367 368 /* LPI stats */ 369 I40E_PF_STAT("port.tx_lpi_status", stats.tx_lpi_status), 370 I40E_PF_STAT("port.rx_lpi_status", stats.rx_lpi_status), 371 I40E_PF_STAT("port.tx_lpi_count", stats.tx_lpi_count), 372 I40E_PF_STAT("port.rx_lpi_count", stats.rx_lpi_count), 373 }; 374 375 struct i40e_pfc_stats { 376 u64 priority_xon_rx; 377 u64 priority_xoff_rx; 378 u64 priority_xon_tx; 379 u64 priority_xoff_tx; 380 u64 priority_xon_2_xoff; 381 }; 382 383 static const struct i40e_stats i40e_gstrings_pfc_stats[] = { 384 I40E_PFC_STAT("port.tx_priority_%u_xon_tx", priority_xon_tx), 385 I40E_PFC_STAT("port.tx_priority_%u_xoff_tx", priority_xoff_tx), 386 I40E_PFC_STAT("port.rx_priority_%u_xon_rx", priority_xon_rx), 387 I40E_PFC_STAT("port.rx_priority_%u_xoff_rx", priority_xoff_rx), 388 I40E_PFC_STAT("port.rx_priority_%u_xon_2_xoff", priority_xon_2_xoff), 389 }; 390 391 #define I40E_NETDEV_STATS_LEN ARRAY_SIZE(i40e_gstrings_net_stats) 392 393 #define I40E_MISC_STATS_LEN ARRAY_SIZE(i40e_gstrings_misc_stats) 394 395 #define I40E_VSI_STATS_LEN (I40E_NETDEV_STATS_LEN + I40E_MISC_STATS_LEN) 396 397 #define I40E_PFC_STATS_LEN (ARRAY_SIZE(i40e_gstrings_pfc_stats) * \ 398 I40E_MAX_USER_PRIORITY) 399 400 #define I40E_VEB_STATS_LEN (ARRAY_SIZE(i40e_gstrings_veb_stats) + \ 401 (ARRAY_SIZE(i40e_gstrings_veb_tc_stats) * \ 402 I40E_MAX_TRAFFIC_CLASS)) 403 404 #define I40E_GLOBAL_STATS_LEN ARRAY_SIZE(i40e_gstrings_stats) 405 406 #define I40E_PF_STATS_LEN (I40E_GLOBAL_STATS_LEN + \ 407 I40E_PFC_STATS_LEN + \ 408 I40E_VEB_STATS_LEN + \ 409 I40E_VSI_STATS_LEN) 410 411 /* Length of stats for a single queue */ 412 #define I40E_QUEUE_STATS_LEN ARRAY_SIZE(i40e_gstrings_queue_stats) 413 414 enum i40e_ethtool_test_id { 415 I40E_ETH_TEST_REG = 0, 416 I40E_ETH_TEST_EEPROM, 417 I40E_ETH_TEST_INTR, 418 I40E_ETH_TEST_LINK, 419 }; 420 421 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = { 422 "Register test (offline)", 423 "Eeprom test (offline)", 424 "Interrupt test (offline)", 425 "Link test (on/offline)" 426 }; 427 428 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN) 429 430 struct i40e_priv_flags { 431 char flag_string[ETH_GSTRING_LEN]; 432 u64 flag; 433 bool read_only; 434 }; 435 436 #define I40E_PRIV_FLAG(_name, _flag, _read_only) { \ 437 .flag_string = _name, \ 438 .flag = _flag, \ 439 .read_only = _read_only, \ 440 } 441 442 static const struct i40e_priv_flags i40e_gstrings_priv_flags[] = { 443 /* NOTE: MFP setting cannot be changed */ 444 I40E_PRIV_FLAG("MFP", I40E_FLAG_MFP_ENABLED, 1), 445 I40E_PRIV_FLAG("total-port-shutdown", 446 I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED, 1), 447 I40E_PRIV_FLAG("LinkPolling", I40E_FLAG_LINK_POLLING_ENABLED, 0), 448 I40E_PRIV_FLAG("flow-director-atr", I40E_FLAG_FD_ATR_ENABLED, 0), 449 I40E_PRIV_FLAG("veb-stats", I40E_FLAG_VEB_STATS_ENABLED, 0), 450 I40E_PRIV_FLAG("hw-atr-eviction", I40E_FLAG_HW_ATR_EVICT_ENABLED, 0), 451 I40E_PRIV_FLAG("link-down-on-close", 452 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED, 0), 453 I40E_PRIV_FLAG("legacy-rx", I40E_FLAG_LEGACY_RX, 0), 454 I40E_PRIV_FLAG("disable-source-pruning", 455 I40E_FLAG_SOURCE_PRUNING_DISABLED, 0), 456 I40E_PRIV_FLAG("disable-fw-lldp", I40E_FLAG_DISABLE_FW_LLDP, 0), 457 I40E_PRIV_FLAG("rs-fec", I40E_FLAG_RS_FEC, 0), 458 I40E_PRIV_FLAG("base-r-fec", I40E_FLAG_BASE_R_FEC, 0), 459 I40E_PRIV_FLAG("vf-vlan-pruning", 460 I40E_FLAG_VF_VLAN_PRUNING, 0), 461 }; 462 463 #define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gstrings_priv_flags) 464 465 /* Private flags with a global effect, restricted to PF 0 */ 466 static const struct i40e_priv_flags i40e_gl_gstrings_priv_flags[] = { 467 I40E_PRIV_FLAG("vf-true-promisc-support", 468 I40E_FLAG_TRUE_PROMISC_SUPPORT, 0), 469 }; 470 471 #define I40E_GL_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gl_gstrings_priv_flags) 472 473 /** 474 * i40e_partition_setting_complaint - generic complaint for MFP restriction 475 * @pf: the PF struct 476 **/ 477 static void i40e_partition_setting_complaint(struct i40e_pf *pf) 478 { 479 dev_info(&pf->pdev->dev, 480 "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"); 481 } 482 483 /** 484 * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes 485 * @pf: PF struct with phy_types 486 * @ks: ethtool link ksettings struct to fill out 487 * 488 **/ 489 static void i40e_phy_type_to_ethtool(struct i40e_pf *pf, 490 struct ethtool_link_ksettings *ks) 491 { 492 struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info; 493 u64 phy_types = pf->hw.phy.phy_types; 494 495 ethtool_link_ksettings_zero_link_mode(ks, supported); 496 ethtool_link_ksettings_zero_link_mode(ks, advertising); 497 498 if (phy_types & I40E_CAP_PHY_TYPE_SGMII) { 499 ethtool_link_ksettings_add_link_mode(ks, supported, 500 1000baseT_Full); 501 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 502 ethtool_link_ksettings_add_link_mode(ks, advertising, 503 1000baseT_Full); 504 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) { 505 ethtool_link_ksettings_add_link_mode(ks, supported, 506 100baseT_Full); 507 ethtool_link_ksettings_add_link_mode(ks, advertising, 508 100baseT_Full); 509 } 510 } 511 if (phy_types & I40E_CAP_PHY_TYPE_XAUI || 512 phy_types & I40E_CAP_PHY_TYPE_XFI || 513 phy_types & I40E_CAP_PHY_TYPE_SFI || 514 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU || 515 phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC) { 516 ethtool_link_ksettings_add_link_mode(ks, supported, 517 10000baseT_Full); 518 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 519 ethtool_link_ksettings_add_link_mode(ks, advertising, 520 10000baseT_Full); 521 } 522 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_T) { 523 ethtool_link_ksettings_add_link_mode(ks, supported, 524 10000baseT_Full); 525 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 526 ethtool_link_ksettings_add_link_mode(ks, advertising, 527 10000baseT_Full); 528 } 529 if (phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T) { 530 ethtool_link_ksettings_add_link_mode(ks, supported, 531 2500baseT_Full); 532 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB) 533 ethtool_link_ksettings_add_link_mode(ks, advertising, 534 2500baseT_Full); 535 } 536 if (phy_types & I40E_CAP_PHY_TYPE_5GBASE_T) { 537 ethtool_link_ksettings_add_link_mode(ks, supported, 538 5000baseT_Full); 539 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB) 540 ethtool_link_ksettings_add_link_mode(ks, advertising, 541 5000baseT_Full); 542 } 543 if (phy_types & I40E_CAP_PHY_TYPE_XLAUI || 544 phy_types & I40E_CAP_PHY_TYPE_XLPPI || 545 phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC) 546 ethtool_link_ksettings_add_link_mode(ks, supported, 547 40000baseCR4_Full); 548 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU || 549 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) { 550 ethtool_link_ksettings_add_link_mode(ks, supported, 551 40000baseCR4_Full); 552 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB) 553 ethtool_link_ksettings_add_link_mode(ks, advertising, 554 40000baseCR4_Full); 555 } 556 if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) { 557 ethtool_link_ksettings_add_link_mode(ks, supported, 558 100baseT_Full); 559 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 560 ethtool_link_ksettings_add_link_mode(ks, advertising, 561 100baseT_Full); 562 } 563 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T) { 564 ethtool_link_ksettings_add_link_mode(ks, supported, 565 1000baseT_Full); 566 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 567 ethtool_link_ksettings_add_link_mode(ks, advertising, 568 1000baseT_Full); 569 } 570 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4) { 571 ethtool_link_ksettings_add_link_mode(ks, supported, 572 40000baseSR4_Full); 573 ethtool_link_ksettings_add_link_mode(ks, advertising, 574 40000baseSR4_Full); 575 } 576 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4) { 577 ethtool_link_ksettings_add_link_mode(ks, supported, 578 40000baseLR4_Full); 579 ethtool_link_ksettings_add_link_mode(ks, advertising, 580 40000baseLR4_Full); 581 } 582 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) { 583 ethtool_link_ksettings_add_link_mode(ks, supported, 584 40000baseKR4_Full); 585 ethtool_link_ksettings_add_link_mode(ks, advertising, 586 40000baseKR4_Full); 587 } 588 if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) { 589 ethtool_link_ksettings_add_link_mode(ks, supported, 590 20000baseKR2_Full); 591 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB) 592 ethtool_link_ksettings_add_link_mode(ks, advertising, 593 20000baseKR2_Full); 594 } 595 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) { 596 ethtool_link_ksettings_add_link_mode(ks, supported, 597 10000baseKX4_Full); 598 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 599 ethtool_link_ksettings_add_link_mode(ks, advertising, 600 10000baseKX4_Full); 601 } 602 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR && 603 !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) { 604 ethtool_link_ksettings_add_link_mode(ks, supported, 605 10000baseKR_Full); 606 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 607 ethtool_link_ksettings_add_link_mode(ks, advertising, 608 10000baseKR_Full); 609 } 610 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX && 611 !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) { 612 ethtool_link_ksettings_add_link_mode(ks, supported, 613 1000baseKX_Full); 614 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 615 ethtool_link_ksettings_add_link_mode(ks, advertising, 616 1000baseKX_Full); 617 } 618 /* need to add 25G PHY types */ 619 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR) { 620 ethtool_link_ksettings_add_link_mode(ks, supported, 621 25000baseKR_Full); 622 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 623 ethtool_link_ksettings_add_link_mode(ks, advertising, 624 25000baseKR_Full); 625 } 626 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR) { 627 ethtool_link_ksettings_add_link_mode(ks, supported, 628 25000baseCR_Full); 629 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 630 ethtool_link_ksettings_add_link_mode(ks, advertising, 631 25000baseCR_Full); 632 } 633 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 634 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR) { 635 ethtool_link_ksettings_add_link_mode(ks, supported, 636 25000baseSR_Full); 637 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 638 ethtool_link_ksettings_add_link_mode(ks, advertising, 639 25000baseSR_Full); 640 } 641 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC || 642 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) { 643 ethtool_link_ksettings_add_link_mode(ks, supported, 644 25000baseCR_Full); 645 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 646 ethtool_link_ksettings_add_link_mode(ks, advertising, 647 25000baseCR_Full); 648 } 649 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR || 650 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR || 651 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 652 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR || 653 phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC || 654 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) { 655 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); 656 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); 657 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); 658 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) { 659 ethtool_link_ksettings_add_link_mode(ks, advertising, 660 FEC_NONE); 661 ethtool_link_ksettings_add_link_mode(ks, advertising, 662 FEC_RS); 663 ethtool_link_ksettings_add_link_mode(ks, advertising, 664 FEC_BASER); 665 } 666 } 667 /* need to add new 10G PHY types */ 668 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 || 669 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU) { 670 ethtool_link_ksettings_add_link_mode(ks, supported, 671 10000baseCR_Full); 672 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 673 ethtool_link_ksettings_add_link_mode(ks, advertising, 674 10000baseCR_Full); 675 } 676 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR) { 677 ethtool_link_ksettings_add_link_mode(ks, supported, 678 10000baseSR_Full); 679 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 680 ethtool_link_ksettings_add_link_mode(ks, advertising, 681 10000baseSR_Full); 682 } 683 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) { 684 ethtool_link_ksettings_add_link_mode(ks, supported, 685 10000baseLR_Full); 686 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 687 ethtool_link_ksettings_add_link_mode(ks, advertising, 688 10000baseLR_Full); 689 } 690 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX || 691 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX || 692 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) { 693 ethtool_link_ksettings_add_link_mode(ks, supported, 694 1000baseX_Full); 695 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 696 ethtool_link_ksettings_add_link_mode(ks, advertising, 697 1000baseX_Full); 698 } 699 /* Autoneg PHY types */ 700 if (phy_types & I40E_CAP_PHY_TYPE_SGMII || 701 phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4 || 702 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU || 703 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4 || 704 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 705 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR || 706 phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR || 707 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR || 708 phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2 || 709 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR || 710 phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR || 711 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4 || 712 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR || 713 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU || 714 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 || 715 phy_types & I40E_CAP_PHY_TYPE_10GBASE_T || 716 phy_types & I40E_CAP_PHY_TYPE_5GBASE_T || 717 phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T || 718 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL || 719 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T || 720 phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX || 721 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX || 722 phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX || 723 phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) { 724 ethtool_link_ksettings_add_link_mode(ks, supported, 725 Autoneg); 726 ethtool_link_ksettings_add_link_mode(ks, advertising, 727 Autoneg); 728 } 729 } 730 731 /** 732 * i40e_get_settings_link_up_fec - Get the FEC mode encoding from mask 733 * @req_fec_info: mask request FEC info 734 * @ks: ethtool ksettings to fill in 735 **/ 736 static void i40e_get_settings_link_up_fec(u8 req_fec_info, 737 struct ethtool_link_ksettings *ks) 738 { 739 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); 740 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); 741 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); 742 743 if ((I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) && 744 (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info)) { 745 ethtool_link_ksettings_add_link_mode(ks, advertising, 746 FEC_NONE); 747 ethtool_link_ksettings_add_link_mode(ks, advertising, 748 FEC_BASER); 749 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); 750 } else if (I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) { 751 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); 752 } else if (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info) { 753 ethtool_link_ksettings_add_link_mode(ks, advertising, 754 FEC_BASER); 755 } else { 756 ethtool_link_ksettings_add_link_mode(ks, advertising, 757 FEC_NONE); 758 } 759 } 760 761 /** 762 * i40e_get_settings_link_up - Get the Link settings for when link is up 763 * @hw: hw structure 764 * @ks: ethtool ksettings to fill in 765 * @netdev: network interface device structure 766 * @pf: pointer to physical function struct 767 **/ 768 static void i40e_get_settings_link_up(struct i40e_hw *hw, 769 struct ethtool_link_ksettings *ks, 770 struct net_device *netdev, 771 struct i40e_pf *pf) 772 { 773 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 774 struct ethtool_link_ksettings cap_ksettings; 775 u32 link_speed = hw_link_info->link_speed; 776 777 /* Initialize supported and advertised settings based on phy settings */ 778 switch (hw_link_info->phy_type) { 779 case I40E_PHY_TYPE_40GBASE_CR4: 780 case I40E_PHY_TYPE_40GBASE_CR4_CU: 781 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 782 ethtool_link_ksettings_add_link_mode(ks, supported, 783 40000baseCR4_Full); 784 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 785 ethtool_link_ksettings_add_link_mode(ks, advertising, 786 40000baseCR4_Full); 787 break; 788 case I40E_PHY_TYPE_XLAUI: 789 case I40E_PHY_TYPE_XLPPI: 790 case I40E_PHY_TYPE_40GBASE_AOC: 791 ethtool_link_ksettings_add_link_mode(ks, supported, 792 40000baseCR4_Full); 793 ethtool_link_ksettings_add_link_mode(ks, advertising, 794 40000baseCR4_Full); 795 break; 796 case I40E_PHY_TYPE_40GBASE_SR4: 797 ethtool_link_ksettings_add_link_mode(ks, supported, 798 40000baseSR4_Full); 799 ethtool_link_ksettings_add_link_mode(ks, advertising, 800 40000baseSR4_Full); 801 break; 802 case I40E_PHY_TYPE_40GBASE_LR4: 803 ethtool_link_ksettings_add_link_mode(ks, supported, 804 40000baseLR4_Full); 805 ethtool_link_ksettings_add_link_mode(ks, advertising, 806 40000baseLR4_Full); 807 break; 808 case I40E_PHY_TYPE_25GBASE_SR: 809 case I40E_PHY_TYPE_25GBASE_LR: 810 case I40E_PHY_TYPE_10GBASE_SR: 811 case I40E_PHY_TYPE_10GBASE_LR: 812 case I40E_PHY_TYPE_1000BASE_SX: 813 case I40E_PHY_TYPE_1000BASE_LX: 814 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 815 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 816 ethtool_link_ksettings_add_link_mode(ks, supported, 817 25000baseSR_Full); 818 ethtool_link_ksettings_add_link_mode(ks, advertising, 819 25000baseSR_Full); 820 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 821 ethtool_link_ksettings_add_link_mode(ks, supported, 822 10000baseSR_Full); 823 ethtool_link_ksettings_add_link_mode(ks, advertising, 824 10000baseSR_Full); 825 ethtool_link_ksettings_add_link_mode(ks, supported, 826 10000baseLR_Full); 827 ethtool_link_ksettings_add_link_mode(ks, advertising, 828 10000baseLR_Full); 829 ethtool_link_ksettings_add_link_mode(ks, supported, 830 1000baseX_Full); 831 ethtool_link_ksettings_add_link_mode(ks, advertising, 832 1000baseX_Full); 833 ethtool_link_ksettings_add_link_mode(ks, supported, 834 10000baseT_Full); 835 if (hw_link_info->module_type[2] & 836 I40E_MODULE_TYPE_1000BASE_SX || 837 hw_link_info->module_type[2] & 838 I40E_MODULE_TYPE_1000BASE_LX) { 839 ethtool_link_ksettings_add_link_mode(ks, supported, 840 1000baseT_Full); 841 if (hw_link_info->requested_speeds & 842 I40E_LINK_SPEED_1GB) 843 ethtool_link_ksettings_add_link_mode( 844 ks, advertising, 1000baseT_Full); 845 } 846 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 847 ethtool_link_ksettings_add_link_mode(ks, advertising, 848 10000baseT_Full); 849 break; 850 case I40E_PHY_TYPE_10GBASE_T: 851 case I40E_PHY_TYPE_5GBASE_T_LINK_STATUS: 852 case I40E_PHY_TYPE_2_5GBASE_T_LINK_STATUS: 853 case I40E_PHY_TYPE_1000BASE_T: 854 case I40E_PHY_TYPE_100BASE_TX: 855 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 856 ethtool_link_ksettings_add_link_mode(ks, supported, 857 10000baseT_Full); 858 ethtool_link_ksettings_add_link_mode(ks, supported, 859 5000baseT_Full); 860 ethtool_link_ksettings_add_link_mode(ks, supported, 861 2500baseT_Full); 862 ethtool_link_ksettings_add_link_mode(ks, supported, 863 1000baseT_Full); 864 ethtool_link_ksettings_add_link_mode(ks, supported, 865 100baseT_Full); 866 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 867 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 868 ethtool_link_ksettings_add_link_mode(ks, advertising, 869 10000baseT_Full); 870 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB) 871 ethtool_link_ksettings_add_link_mode(ks, advertising, 872 5000baseT_Full); 873 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB) 874 ethtool_link_ksettings_add_link_mode(ks, advertising, 875 2500baseT_Full); 876 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 877 ethtool_link_ksettings_add_link_mode(ks, advertising, 878 1000baseT_Full); 879 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 880 ethtool_link_ksettings_add_link_mode(ks, advertising, 881 100baseT_Full); 882 break; 883 case I40E_PHY_TYPE_1000BASE_T_OPTICAL: 884 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 885 ethtool_link_ksettings_add_link_mode(ks, supported, 886 1000baseT_Full); 887 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 888 ethtool_link_ksettings_add_link_mode(ks, advertising, 889 1000baseT_Full); 890 break; 891 case I40E_PHY_TYPE_10GBASE_CR1_CU: 892 case I40E_PHY_TYPE_10GBASE_CR1: 893 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 894 ethtool_link_ksettings_add_link_mode(ks, supported, 895 10000baseT_Full); 896 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 897 ethtool_link_ksettings_add_link_mode(ks, advertising, 898 10000baseT_Full); 899 break; 900 case I40E_PHY_TYPE_XAUI: 901 case I40E_PHY_TYPE_XFI: 902 case I40E_PHY_TYPE_SFI: 903 case I40E_PHY_TYPE_10GBASE_SFPP_CU: 904 case I40E_PHY_TYPE_10GBASE_AOC: 905 ethtool_link_ksettings_add_link_mode(ks, supported, 906 10000baseT_Full); 907 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 908 ethtool_link_ksettings_add_link_mode(ks, advertising, 909 10000baseT_Full); 910 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 911 break; 912 case I40E_PHY_TYPE_SGMII: 913 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 914 ethtool_link_ksettings_add_link_mode(ks, supported, 915 1000baseT_Full); 916 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 917 ethtool_link_ksettings_add_link_mode(ks, advertising, 918 1000baseT_Full); 919 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) { 920 ethtool_link_ksettings_add_link_mode(ks, supported, 921 100baseT_Full); 922 if (hw_link_info->requested_speeds & 923 I40E_LINK_SPEED_100MB) 924 ethtool_link_ksettings_add_link_mode( 925 ks, advertising, 100baseT_Full); 926 } 927 break; 928 case I40E_PHY_TYPE_40GBASE_KR4: 929 case I40E_PHY_TYPE_25GBASE_KR: 930 case I40E_PHY_TYPE_20GBASE_KR2: 931 case I40E_PHY_TYPE_10GBASE_KR: 932 case I40E_PHY_TYPE_10GBASE_KX4: 933 case I40E_PHY_TYPE_1000BASE_KX: 934 ethtool_link_ksettings_add_link_mode(ks, supported, 935 40000baseKR4_Full); 936 ethtool_link_ksettings_add_link_mode(ks, supported, 937 25000baseKR_Full); 938 ethtool_link_ksettings_add_link_mode(ks, supported, 939 20000baseKR2_Full); 940 ethtool_link_ksettings_add_link_mode(ks, supported, 941 10000baseKR_Full); 942 ethtool_link_ksettings_add_link_mode(ks, supported, 943 10000baseKX4_Full); 944 ethtool_link_ksettings_add_link_mode(ks, supported, 945 1000baseKX_Full); 946 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 947 ethtool_link_ksettings_add_link_mode(ks, advertising, 948 40000baseKR4_Full); 949 ethtool_link_ksettings_add_link_mode(ks, advertising, 950 25000baseKR_Full); 951 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 952 ethtool_link_ksettings_add_link_mode(ks, advertising, 953 20000baseKR2_Full); 954 ethtool_link_ksettings_add_link_mode(ks, advertising, 955 10000baseKR_Full); 956 ethtool_link_ksettings_add_link_mode(ks, advertising, 957 10000baseKX4_Full); 958 ethtool_link_ksettings_add_link_mode(ks, advertising, 959 1000baseKX_Full); 960 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 961 break; 962 case I40E_PHY_TYPE_25GBASE_CR: 963 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 964 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 965 ethtool_link_ksettings_add_link_mode(ks, supported, 966 25000baseCR_Full); 967 ethtool_link_ksettings_add_link_mode(ks, advertising, 968 25000baseCR_Full); 969 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 970 971 break; 972 case I40E_PHY_TYPE_25GBASE_AOC: 973 case I40E_PHY_TYPE_25GBASE_ACC: 974 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 975 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 976 ethtool_link_ksettings_add_link_mode(ks, supported, 977 25000baseCR_Full); 978 ethtool_link_ksettings_add_link_mode(ks, advertising, 979 25000baseCR_Full); 980 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 981 982 ethtool_link_ksettings_add_link_mode(ks, supported, 983 10000baseCR_Full); 984 ethtool_link_ksettings_add_link_mode(ks, advertising, 985 10000baseCR_Full); 986 break; 987 default: 988 /* if we got here and link is up something bad is afoot */ 989 netdev_info(netdev, 990 "WARNING: Link is up but PHY type 0x%x is not recognized, or incorrect cable is in use\n", 991 hw_link_info->phy_type); 992 } 993 994 /* Now that we've worked out everything that could be supported by the 995 * current PHY type, get what is supported by the NVM and intersect 996 * them to get what is truly supported 997 */ 998 memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings)); 999 i40e_phy_type_to_ethtool(pf, &cap_ksettings); 1000 ethtool_intersect_link_masks(ks, &cap_ksettings); 1001 1002 /* Set speed and duplex */ 1003 switch (link_speed) { 1004 case I40E_LINK_SPEED_40GB: 1005 ks->base.speed = SPEED_40000; 1006 break; 1007 case I40E_LINK_SPEED_25GB: 1008 ks->base.speed = SPEED_25000; 1009 break; 1010 case I40E_LINK_SPEED_20GB: 1011 ks->base.speed = SPEED_20000; 1012 break; 1013 case I40E_LINK_SPEED_10GB: 1014 ks->base.speed = SPEED_10000; 1015 break; 1016 case I40E_LINK_SPEED_5GB: 1017 ks->base.speed = SPEED_5000; 1018 break; 1019 case I40E_LINK_SPEED_2_5GB: 1020 ks->base.speed = SPEED_2500; 1021 break; 1022 case I40E_LINK_SPEED_1GB: 1023 ks->base.speed = SPEED_1000; 1024 break; 1025 case I40E_LINK_SPEED_100MB: 1026 ks->base.speed = SPEED_100; 1027 break; 1028 default: 1029 ks->base.speed = SPEED_UNKNOWN; 1030 break; 1031 } 1032 ks->base.duplex = DUPLEX_FULL; 1033 } 1034 1035 /** 1036 * i40e_get_settings_link_down - Get the Link settings for when link is down 1037 * @hw: hw structure 1038 * @ks: ethtool ksettings to fill in 1039 * @pf: pointer to physical function struct 1040 * 1041 * Reports link settings that can be determined when link is down 1042 **/ 1043 static void i40e_get_settings_link_down(struct i40e_hw *hw, 1044 struct ethtool_link_ksettings *ks, 1045 struct i40e_pf *pf) 1046 { 1047 /* link is down and the driver needs to fall back on 1048 * supported phy types to figure out what info to display 1049 */ 1050 i40e_phy_type_to_ethtool(pf, ks); 1051 1052 /* With no link speed and duplex are unknown */ 1053 ks->base.speed = SPEED_UNKNOWN; 1054 ks->base.duplex = DUPLEX_UNKNOWN; 1055 } 1056 1057 /** 1058 * i40e_get_link_ksettings - Get Link Speed and Duplex settings 1059 * @netdev: network interface device structure 1060 * @ks: ethtool ksettings 1061 * 1062 * Reports speed/duplex settings based on media_type 1063 **/ 1064 static int i40e_get_link_ksettings(struct net_device *netdev, 1065 struct ethtool_link_ksettings *ks) 1066 { 1067 struct i40e_netdev_priv *np = netdev_priv(netdev); 1068 struct i40e_pf *pf = np->vsi->back; 1069 struct i40e_hw *hw = &pf->hw; 1070 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1071 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 1072 1073 ethtool_link_ksettings_zero_link_mode(ks, supported); 1074 ethtool_link_ksettings_zero_link_mode(ks, advertising); 1075 1076 if (link_up) 1077 i40e_get_settings_link_up(hw, ks, netdev, pf); 1078 else 1079 i40e_get_settings_link_down(hw, ks, pf); 1080 1081 /* Now set the settings that don't rely on link being up/down */ 1082 /* Set autoneg settings */ 1083 ks->base.autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 1084 AUTONEG_ENABLE : AUTONEG_DISABLE); 1085 1086 /* Set media type settings */ 1087 switch (hw->phy.media_type) { 1088 case I40E_MEDIA_TYPE_BACKPLANE: 1089 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 1090 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane); 1091 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 1092 ethtool_link_ksettings_add_link_mode(ks, advertising, 1093 Backplane); 1094 ks->base.port = PORT_NONE; 1095 break; 1096 case I40E_MEDIA_TYPE_BASET: 1097 ethtool_link_ksettings_add_link_mode(ks, supported, TP); 1098 ethtool_link_ksettings_add_link_mode(ks, advertising, TP); 1099 ks->base.port = PORT_TP; 1100 break; 1101 case I40E_MEDIA_TYPE_DA: 1102 case I40E_MEDIA_TYPE_CX4: 1103 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1104 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 1105 ks->base.port = PORT_DA; 1106 break; 1107 case I40E_MEDIA_TYPE_FIBER: 1108 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1109 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 1110 ks->base.port = PORT_FIBRE; 1111 break; 1112 case I40E_MEDIA_TYPE_UNKNOWN: 1113 default: 1114 ks->base.port = PORT_OTHER; 1115 break; 1116 } 1117 1118 /* Set flow control settings */ 1119 ethtool_link_ksettings_add_link_mode(ks, supported, Pause); 1120 ethtool_link_ksettings_add_link_mode(ks, supported, Asym_Pause); 1121 1122 switch (hw->fc.requested_mode) { 1123 case I40E_FC_FULL: 1124 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1125 break; 1126 case I40E_FC_TX_PAUSE: 1127 ethtool_link_ksettings_add_link_mode(ks, advertising, 1128 Asym_Pause); 1129 break; 1130 case I40E_FC_RX_PAUSE: 1131 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1132 ethtool_link_ksettings_add_link_mode(ks, advertising, 1133 Asym_Pause); 1134 break; 1135 default: 1136 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause); 1137 ethtool_link_ksettings_del_link_mode(ks, advertising, 1138 Asym_Pause); 1139 break; 1140 } 1141 1142 return 0; 1143 } 1144 1145 #define I40E_LBIT_SIZE 8 1146 /** 1147 * i40e_speed_to_link_speed - Translate decimal speed to i40e_aq_link_speed 1148 * @speed: speed in decimal 1149 * @ks: ethtool ksettings 1150 * 1151 * Return i40e_aq_link_speed based on speed 1152 **/ 1153 static enum i40e_aq_link_speed 1154 i40e_speed_to_link_speed(__u32 speed, const struct ethtool_link_ksettings *ks) 1155 { 1156 enum i40e_aq_link_speed link_speed = I40E_LINK_SPEED_UNKNOWN; 1157 bool speed_changed = false; 1158 int i, j; 1159 1160 static const struct { 1161 __u32 speed; 1162 enum i40e_aq_link_speed link_speed; 1163 __u8 bit[I40E_LBIT_SIZE]; 1164 } i40e_speed_lut[] = { 1165 #define I40E_LBIT(mode) ETHTOOL_LINK_MODE_ ## mode ##_Full_BIT 1166 {SPEED_100, I40E_LINK_SPEED_100MB, {I40E_LBIT(100baseT)} }, 1167 {SPEED_1000, I40E_LINK_SPEED_1GB, 1168 {I40E_LBIT(1000baseT), I40E_LBIT(1000baseX), 1169 I40E_LBIT(1000baseKX)} }, 1170 {SPEED_10000, I40E_LINK_SPEED_10GB, 1171 {I40E_LBIT(10000baseT), I40E_LBIT(10000baseKR), 1172 I40E_LBIT(10000baseLR), I40E_LBIT(10000baseCR), 1173 I40E_LBIT(10000baseSR), I40E_LBIT(10000baseKX4)} }, 1174 1175 {SPEED_25000, I40E_LINK_SPEED_25GB, 1176 {I40E_LBIT(25000baseCR), I40E_LBIT(25000baseKR), 1177 I40E_LBIT(25000baseSR)} }, 1178 {SPEED_40000, I40E_LINK_SPEED_40GB, 1179 {I40E_LBIT(40000baseKR4), I40E_LBIT(40000baseCR4), 1180 I40E_LBIT(40000baseSR4), I40E_LBIT(40000baseLR4)} }, 1181 {SPEED_20000, I40E_LINK_SPEED_20GB, 1182 {I40E_LBIT(20000baseKR2)} }, 1183 {SPEED_2500, I40E_LINK_SPEED_2_5GB, {I40E_LBIT(2500baseT)} }, 1184 {SPEED_5000, I40E_LINK_SPEED_5GB, {I40E_LBIT(2500baseT)} } 1185 #undef I40E_LBIT 1186 }; 1187 1188 for (i = 0; i < ARRAY_SIZE(i40e_speed_lut); i++) { 1189 if (i40e_speed_lut[i].speed == speed) { 1190 for (j = 0; j < I40E_LBIT_SIZE; j++) { 1191 if (test_bit(i40e_speed_lut[i].bit[j], 1192 ks->link_modes.supported)) { 1193 speed_changed = true; 1194 break; 1195 } 1196 if (!i40e_speed_lut[i].bit[j]) 1197 break; 1198 } 1199 if (speed_changed) { 1200 link_speed = i40e_speed_lut[i].link_speed; 1201 break; 1202 } 1203 } 1204 } 1205 return link_speed; 1206 } 1207 1208 #undef I40E_LBIT_SIZE 1209 1210 /** 1211 * i40e_set_link_ksettings - Set Speed and Duplex 1212 * @netdev: network interface device structure 1213 * @ks: ethtool ksettings 1214 * 1215 * Set speed/duplex per media_types advertised/forced 1216 **/ 1217 static int i40e_set_link_ksettings(struct net_device *netdev, 1218 const struct ethtool_link_ksettings *ks) 1219 { 1220 struct i40e_netdev_priv *np = netdev_priv(netdev); 1221 struct i40e_aq_get_phy_abilities_resp abilities; 1222 struct ethtool_link_ksettings safe_ks; 1223 struct ethtool_link_ksettings copy_ks; 1224 struct i40e_aq_set_phy_config config; 1225 struct i40e_pf *pf = np->vsi->back; 1226 enum i40e_aq_link_speed link_speed; 1227 struct i40e_vsi *vsi = np->vsi; 1228 struct i40e_hw *hw = &pf->hw; 1229 bool autoneg_changed = false; 1230 int timeout = 50; 1231 int status = 0; 1232 int err = 0; 1233 __u32 speed; 1234 u8 autoneg; 1235 1236 /* Changing port settings is not supported if this isn't the 1237 * port's controlling PF 1238 */ 1239 if (hw->partition_id != 1) { 1240 i40e_partition_setting_complaint(pf); 1241 return -EOPNOTSUPP; 1242 } 1243 if (vsi != pf->vsi[pf->lan_vsi]) 1244 return -EOPNOTSUPP; 1245 if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET && 1246 hw->phy.media_type != I40E_MEDIA_TYPE_FIBER && 1247 hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE && 1248 hw->phy.media_type != I40E_MEDIA_TYPE_DA && 1249 hw->phy.link_info.link_info & I40E_AQ_LINK_UP) 1250 return -EOPNOTSUPP; 1251 if (hw->device_id == I40E_DEV_ID_KX_B || 1252 hw->device_id == I40E_DEV_ID_KX_C || 1253 hw->device_id == I40E_DEV_ID_20G_KR2 || 1254 hw->device_id == I40E_DEV_ID_20G_KR2_A || 1255 hw->device_id == I40E_DEV_ID_25G_B || 1256 hw->device_id == I40E_DEV_ID_KX_X722) { 1257 netdev_info(netdev, "Changing settings is not supported on backplane.\n"); 1258 return -EOPNOTSUPP; 1259 } 1260 1261 /* copy the ksettings to copy_ks to avoid modifying the origin */ 1262 memcpy(©_ks, ks, sizeof(struct ethtool_link_ksettings)); 1263 1264 /* save autoneg out of ksettings */ 1265 autoneg = copy_ks.base.autoneg; 1266 speed = copy_ks.base.speed; 1267 1268 /* get our own copy of the bits to check against */ 1269 memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings)); 1270 safe_ks.base.cmd = copy_ks.base.cmd; 1271 safe_ks.base.link_mode_masks_nwords = 1272 copy_ks.base.link_mode_masks_nwords; 1273 i40e_get_link_ksettings(netdev, &safe_ks); 1274 1275 /* Get link modes supported by hardware and check against modes 1276 * requested by the user. Return an error if unsupported mode was set. 1277 */ 1278 if (!bitmap_subset(copy_ks.link_modes.advertising, 1279 safe_ks.link_modes.supported, 1280 __ETHTOOL_LINK_MODE_MASK_NBITS)) 1281 return -EINVAL; 1282 1283 /* set autoneg back to what it currently is */ 1284 copy_ks.base.autoneg = safe_ks.base.autoneg; 1285 copy_ks.base.speed = safe_ks.base.speed; 1286 1287 /* If copy_ks.base and safe_ks.base are not the same now, then they are 1288 * trying to set something that we do not support. 1289 */ 1290 if (memcmp(©_ks.base, &safe_ks.base, 1291 sizeof(struct ethtool_link_settings))) { 1292 netdev_err(netdev, "Only speed and autoneg are supported.\n"); 1293 return -EOPNOTSUPP; 1294 } 1295 1296 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { 1297 timeout--; 1298 if (!timeout) 1299 return -EBUSY; 1300 usleep_range(1000, 2000); 1301 } 1302 1303 /* Get the current phy config */ 1304 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1305 NULL); 1306 if (status) { 1307 err = -EAGAIN; 1308 goto done; 1309 } 1310 1311 /* Copy abilities to config in case autoneg is not 1312 * set below 1313 */ 1314 memset(&config, 0, sizeof(struct i40e_aq_set_phy_config)); 1315 config.abilities = abilities.abilities; 1316 1317 /* Check autoneg */ 1318 if (autoneg == AUTONEG_ENABLE) { 1319 /* If autoneg was not already enabled */ 1320 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) { 1321 /* If autoneg is not supported, return error */ 1322 if (!ethtool_link_ksettings_test_link_mode(&safe_ks, 1323 supported, 1324 Autoneg)) { 1325 netdev_info(netdev, "Autoneg not supported on this phy\n"); 1326 err = -EINVAL; 1327 goto done; 1328 } 1329 /* Autoneg is allowed to change */ 1330 config.abilities = abilities.abilities | 1331 I40E_AQ_PHY_ENABLE_AN; 1332 autoneg_changed = true; 1333 } 1334 } else { 1335 /* If autoneg is currently enabled */ 1336 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) { 1337 /* If autoneg is supported 10GBASE_T is the only PHY 1338 * that can disable it, so otherwise return error 1339 */ 1340 if (ethtool_link_ksettings_test_link_mode(&safe_ks, 1341 supported, 1342 Autoneg) && 1343 hw->phy.media_type != I40E_MEDIA_TYPE_BASET) { 1344 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n"); 1345 err = -EINVAL; 1346 goto done; 1347 } 1348 /* Autoneg is allowed to change */ 1349 config.abilities = abilities.abilities & 1350 ~I40E_AQ_PHY_ENABLE_AN; 1351 autoneg_changed = true; 1352 } 1353 } 1354 1355 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1356 100baseT_Full)) 1357 config.link_speed |= I40E_LINK_SPEED_100MB; 1358 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1359 1000baseT_Full) || 1360 ethtool_link_ksettings_test_link_mode(ks, advertising, 1361 1000baseX_Full) || 1362 ethtool_link_ksettings_test_link_mode(ks, advertising, 1363 1000baseKX_Full)) 1364 config.link_speed |= I40E_LINK_SPEED_1GB; 1365 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1366 10000baseT_Full) || 1367 ethtool_link_ksettings_test_link_mode(ks, advertising, 1368 10000baseKX4_Full) || 1369 ethtool_link_ksettings_test_link_mode(ks, advertising, 1370 10000baseKR_Full) || 1371 ethtool_link_ksettings_test_link_mode(ks, advertising, 1372 10000baseCR_Full) || 1373 ethtool_link_ksettings_test_link_mode(ks, advertising, 1374 10000baseSR_Full) || 1375 ethtool_link_ksettings_test_link_mode(ks, advertising, 1376 10000baseLR_Full)) 1377 config.link_speed |= I40E_LINK_SPEED_10GB; 1378 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1379 2500baseT_Full)) 1380 config.link_speed |= I40E_LINK_SPEED_2_5GB; 1381 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1382 5000baseT_Full)) 1383 config.link_speed |= I40E_LINK_SPEED_5GB; 1384 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1385 20000baseKR2_Full)) 1386 config.link_speed |= I40E_LINK_SPEED_20GB; 1387 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1388 25000baseCR_Full) || 1389 ethtool_link_ksettings_test_link_mode(ks, advertising, 1390 25000baseKR_Full) || 1391 ethtool_link_ksettings_test_link_mode(ks, advertising, 1392 25000baseSR_Full)) 1393 config.link_speed |= I40E_LINK_SPEED_25GB; 1394 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1395 40000baseKR4_Full) || 1396 ethtool_link_ksettings_test_link_mode(ks, advertising, 1397 40000baseCR4_Full) || 1398 ethtool_link_ksettings_test_link_mode(ks, advertising, 1399 40000baseSR4_Full) || 1400 ethtool_link_ksettings_test_link_mode(ks, advertising, 1401 40000baseLR4_Full)) 1402 config.link_speed |= I40E_LINK_SPEED_40GB; 1403 1404 /* Autonegotiation must be disabled to change speed */ 1405 if ((speed != SPEED_UNKNOWN && safe_ks.base.speed != speed) && 1406 (autoneg == AUTONEG_DISABLE || 1407 (safe_ks.base.autoneg == AUTONEG_DISABLE && !autoneg_changed))) { 1408 link_speed = i40e_speed_to_link_speed(speed, ks); 1409 if (link_speed == I40E_LINK_SPEED_UNKNOWN) { 1410 netdev_info(netdev, "Given speed is not supported\n"); 1411 err = -EOPNOTSUPP; 1412 goto done; 1413 } else { 1414 config.link_speed = link_speed; 1415 } 1416 } else { 1417 if (safe_ks.base.speed != speed) { 1418 netdev_info(netdev, 1419 "Unable to set speed, disable autoneg\n"); 1420 err = -EOPNOTSUPP; 1421 goto done; 1422 } 1423 } 1424 1425 /* If speed didn't get set, set it to what it currently is. 1426 * This is needed because if advertise is 0 (as it is when autoneg 1427 * is disabled) then speed won't get set. 1428 */ 1429 if (!config.link_speed) 1430 config.link_speed = abilities.link_speed; 1431 if (autoneg_changed || abilities.link_speed != config.link_speed) { 1432 /* copy over the rest of the abilities */ 1433 config.phy_type = abilities.phy_type; 1434 config.phy_type_ext = abilities.phy_type_ext; 1435 config.eee_capability = abilities.eee_capability; 1436 config.eeer = abilities.eeer_val; 1437 config.low_power_ctrl = abilities.d3_lpan; 1438 config.fec_config = abilities.fec_cfg_curr_mod_ext_info & 1439 I40E_AQ_PHY_FEC_CONFIG_MASK; 1440 1441 /* save the requested speeds */ 1442 hw->phy.link_info.requested_speeds = config.link_speed; 1443 /* set link and auto negotiation so changes take effect */ 1444 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 1445 /* If link is up put link down */ 1446 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) { 1447 /* Tell the OS link is going down, the link will go 1448 * back up when fw says it is ready asynchronously 1449 */ 1450 i40e_print_link_message(vsi, false); 1451 netif_carrier_off(netdev); 1452 netif_tx_stop_all_queues(netdev); 1453 } 1454 1455 /* make the aq call */ 1456 status = i40e_aq_set_phy_config(hw, &config, NULL); 1457 if (status) { 1458 netdev_info(netdev, 1459 "Set phy config failed, err %pe aq_err %s\n", 1460 ERR_PTR(status), 1461 i40e_aq_str(hw, hw->aq.asq_last_status)); 1462 err = -EAGAIN; 1463 goto done; 1464 } 1465 1466 status = i40e_update_link_info(hw); 1467 if (status) 1468 netdev_dbg(netdev, 1469 "Updating link info failed with err %pe aq_err %s\n", 1470 ERR_PTR(status), 1471 i40e_aq_str(hw, hw->aq.asq_last_status)); 1472 1473 } else { 1474 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n"); 1475 } 1476 1477 done: 1478 clear_bit(__I40E_CONFIG_BUSY, pf->state); 1479 1480 return err; 1481 } 1482 1483 static int i40e_set_fec_cfg(struct net_device *netdev, u8 fec_cfg) 1484 { 1485 struct i40e_netdev_priv *np = netdev_priv(netdev); 1486 struct i40e_aq_get_phy_abilities_resp abilities; 1487 struct i40e_pf *pf = np->vsi->back; 1488 struct i40e_hw *hw = &pf->hw; 1489 int status = 0; 1490 u32 flags = 0; 1491 int err = 0; 1492 1493 flags = READ_ONCE(pf->flags); 1494 i40e_set_fec_in_flags(fec_cfg, &flags); 1495 1496 /* Get the current phy config */ 1497 memset(&abilities, 0, sizeof(abilities)); 1498 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1499 NULL); 1500 if (status) { 1501 err = -EAGAIN; 1502 goto done; 1503 } 1504 1505 if (abilities.fec_cfg_curr_mod_ext_info != fec_cfg) { 1506 struct i40e_aq_set_phy_config config; 1507 1508 memset(&config, 0, sizeof(config)); 1509 config.phy_type = abilities.phy_type; 1510 config.abilities = abilities.abilities | 1511 I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 1512 config.phy_type_ext = abilities.phy_type_ext; 1513 config.link_speed = abilities.link_speed; 1514 config.eee_capability = abilities.eee_capability; 1515 config.eeer = abilities.eeer_val; 1516 config.low_power_ctrl = abilities.d3_lpan; 1517 config.fec_config = fec_cfg & I40E_AQ_PHY_FEC_CONFIG_MASK; 1518 status = i40e_aq_set_phy_config(hw, &config, NULL); 1519 if (status) { 1520 netdev_info(netdev, 1521 "Set phy config failed, err %pe aq_err %s\n", 1522 ERR_PTR(status), 1523 i40e_aq_str(hw, hw->aq.asq_last_status)); 1524 err = -EAGAIN; 1525 goto done; 1526 } 1527 pf->flags = flags; 1528 status = i40e_update_link_info(hw); 1529 if (status) 1530 /* debug level message only due to relation to the link 1531 * itself rather than to the FEC settings 1532 * (e.g. no physical connection etc.) 1533 */ 1534 netdev_dbg(netdev, 1535 "Updating link info failed with err %pe aq_err %s\n", 1536 ERR_PTR(status), 1537 i40e_aq_str(hw, hw->aq.asq_last_status)); 1538 } 1539 1540 done: 1541 return err; 1542 } 1543 1544 static int i40e_get_fec_param(struct net_device *netdev, 1545 struct ethtool_fecparam *fecparam) 1546 { 1547 struct i40e_netdev_priv *np = netdev_priv(netdev); 1548 struct i40e_aq_get_phy_abilities_resp abilities; 1549 struct i40e_pf *pf = np->vsi->back; 1550 struct i40e_hw *hw = &pf->hw; 1551 int status = 0; 1552 int err = 0; 1553 u8 fec_cfg; 1554 1555 /* Get the current phy config */ 1556 memset(&abilities, 0, sizeof(abilities)); 1557 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1558 NULL); 1559 if (status) { 1560 err = -EAGAIN; 1561 goto done; 1562 } 1563 1564 fecparam->fec = 0; 1565 fec_cfg = abilities.fec_cfg_curr_mod_ext_info; 1566 if (fec_cfg & I40E_AQ_SET_FEC_AUTO) 1567 fecparam->fec |= ETHTOOL_FEC_AUTO; 1568 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_RS | 1569 I40E_AQ_SET_FEC_ABILITY_RS)) 1570 fecparam->fec |= ETHTOOL_FEC_RS; 1571 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_KR | 1572 I40E_AQ_SET_FEC_ABILITY_KR)) 1573 fecparam->fec |= ETHTOOL_FEC_BASER; 1574 if (fec_cfg == 0) 1575 fecparam->fec |= ETHTOOL_FEC_OFF; 1576 1577 if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_KR_ENA) 1578 fecparam->active_fec = ETHTOOL_FEC_BASER; 1579 else if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_RS_ENA) 1580 fecparam->active_fec = ETHTOOL_FEC_RS; 1581 else 1582 fecparam->active_fec = ETHTOOL_FEC_OFF; 1583 done: 1584 return err; 1585 } 1586 1587 static int i40e_set_fec_param(struct net_device *netdev, 1588 struct ethtool_fecparam *fecparam) 1589 { 1590 struct i40e_netdev_priv *np = netdev_priv(netdev); 1591 struct i40e_pf *pf = np->vsi->back; 1592 struct i40e_hw *hw = &pf->hw; 1593 u8 fec_cfg = 0; 1594 1595 if (hw->device_id != I40E_DEV_ID_25G_SFP28 && 1596 hw->device_id != I40E_DEV_ID_25G_B && 1597 hw->device_id != I40E_DEV_ID_KX_X722) 1598 return -EPERM; 1599 1600 if (hw->mac.type == I40E_MAC_X722 && 1601 !(hw->flags & I40E_HW_FLAG_X722_FEC_REQUEST_CAPABLE)) { 1602 netdev_err(netdev, "Setting FEC encoding not supported by firmware. Please update the NVM image.\n"); 1603 return -EOPNOTSUPP; 1604 } 1605 1606 switch (fecparam->fec) { 1607 case ETHTOOL_FEC_AUTO: 1608 fec_cfg = I40E_AQ_SET_FEC_AUTO; 1609 break; 1610 case ETHTOOL_FEC_RS: 1611 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS | 1612 I40E_AQ_SET_FEC_ABILITY_RS); 1613 break; 1614 case ETHTOOL_FEC_BASER: 1615 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR | 1616 I40E_AQ_SET_FEC_ABILITY_KR); 1617 break; 1618 case ETHTOOL_FEC_OFF: 1619 case ETHTOOL_FEC_NONE: 1620 fec_cfg = 0; 1621 break; 1622 default: 1623 dev_warn(&pf->pdev->dev, "Unsupported FEC mode: %d", 1624 fecparam->fec); 1625 return -EINVAL; 1626 } 1627 1628 return i40e_set_fec_cfg(netdev, fec_cfg); 1629 } 1630 1631 static int i40e_nway_reset(struct net_device *netdev) 1632 { 1633 /* restart autonegotiation */ 1634 struct i40e_netdev_priv *np = netdev_priv(netdev); 1635 struct i40e_pf *pf = np->vsi->back; 1636 struct i40e_hw *hw = &pf->hw; 1637 bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP; 1638 int ret = 0; 1639 1640 ret = i40e_aq_set_link_restart_an(hw, link_up, NULL); 1641 if (ret) { 1642 netdev_info(netdev, "link restart failed, err %pe aq_err %s\n", 1643 ERR_PTR(ret), 1644 i40e_aq_str(hw, hw->aq.asq_last_status)); 1645 return -EIO; 1646 } 1647 1648 return 0; 1649 } 1650 1651 /** 1652 * i40e_get_pauseparam - Get Flow Control status 1653 * @netdev: netdevice structure 1654 * @pause: buffer to return pause parameters 1655 * 1656 * Return tx/rx-pause status 1657 **/ 1658 static void i40e_get_pauseparam(struct net_device *netdev, 1659 struct ethtool_pauseparam *pause) 1660 { 1661 struct i40e_netdev_priv *np = netdev_priv(netdev); 1662 struct i40e_pf *pf = np->vsi->back; 1663 struct i40e_hw *hw = &pf->hw; 1664 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1665 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 1666 1667 pause->autoneg = 1668 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 1669 AUTONEG_ENABLE : AUTONEG_DISABLE); 1670 1671 /* PFC enabled so report LFC as off */ 1672 if (dcbx_cfg->pfc.pfcenable) { 1673 pause->rx_pause = 0; 1674 pause->tx_pause = 0; 1675 return; 1676 } 1677 1678 if (hw->fc.current_mode == I40E_FC_RX_PAUSE) { 1679 pause->rx_pause = 1; 1680 } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) { 1681 pause->tx_pause = 1; 1682 } else if (hw->fc.current_mode == I40E_FC_FULL) { 1683 pause->rx_pause = 1; 1684 pause->tx_pause = 1; 1685 } 1686 } 1687 1688 /** 1689 * i40e_set_pauseparam - Set Flow Control parameter 1690 * @netdev: network interface device structure 1691 * @pause: return tx/rx flow control status 1692 **/ 1693 static int i40e_set_pauseparam(struct net_device *netdev, 1694 struct ethtool_pauseparam *pause) 1695 { 1696 struct i40e_netdev_priv *np = netdev_priv(netdev); 1697 struct i40e_pf *pf = np->vsi->back; 1698 struct i40e_vsi *vsi = np->vsi; 1699 struct i40e_hw *hw = &pf->hw; 1700 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1701 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 1702 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 1703 u8 aq_failures; 1704 int err = 0; 1705 int status; 1706 u32 is_an; 1707 1708 /* Changing the port's flow control is not supported if this isn't the 1709 * port's controlling PF 1710 */ 1711 if (hw->partition_id != 1) { 1712 i40e_partition_setting_complaint(pf); 1713 return -EOPNOTSUPP; 1714 } 1715 1716 if (vsi != pf->vsi[pf->lan_vsi]) 1717 return -EOPNOTSUPP; 1718 1719 is_an = hw_link_info->an_info & I40E_AQ_AN_COMPLETED; 1720 if (pause->autoneg != is_an) { 1721 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n"); 1722 return -EOPNOTSUPP; 1723 } 1724 1725 /* If we have link and don't have autoneg */ 1726 if (!test_bit(__I40E_DOWN, pf->state) && !is_an) { 1727 /* Send message that it might not necessarily work*/ 1728 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n"); 1729 } 1730 1731 if (dcbx_cfg->pfc.pfcenable) { 1732 netdev_info(netdev, 1733 "Priority flow control enabled. Cannot set link flow control.\n"); 1734 return -EOPNOTSUPP; 1735 } 1736 1737 if (pause->rx_pause && pause->tx_pause) 1738 hw->fc.requested_mode = I40E_FC_FULL; 1739 else if (pause->rx_pause && !pause->tx_pause) 1740 hw->fc.requested_mode = I40E_FC_RX_PAUSE; 1741 else if (!pause->rx_pause && pause->tx_pause) 1742 hw->fc.requested_mode = I40E_FC_TX_PAUSE; 1743 else if (!pause->rx_pause && !pause->tx_pause) 1744 hw->fc.requested_mode = I40E_FC_NONE; 1745 else 1746 return -EINVAL; 1747 1748 /* Tell the OS link is going down, the link will go back up when fw 1749 * says it is ready asynchronously 1750 */ 1751 i40e_print_link_message(vsi, false); 1752 netif_carrier_off(netdev); 1753 netif_tx_stop_all_queues(netdev); 1754 1755 /* Set the fc mode and only restart an if link is up*/ 1756 status = i40e_set_fc(hw, &aq_failures, link_up); 1757 1758 if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) { 1759 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %pe aq_err %s\n", 1760 ERR_PTR(status), 1761 i40e_aq_str(hw, hw->aq.asq_last_status)); 1762 err = -EAGAIN; 1763 } 1764 if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) { 1765 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %pe aq_err %s\n", 1766 ERR_PTR(status), 1767 i40e_aq_str(hw, hw->aq.asq_last_status)); 1768 err = -EAGAIN; 1769 } 1770 if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) { 1771 netdev_info(netdev, "Set fc failed on the get_link_info call with err %pe aq_err %s\n", 1772 ERR_PTR(status), 1773 i40e_aq_str(hw, hw->aq.asq_last_status)); 1774 err = -EAGAIN; 1775 } 1776 1777 if (!test_bit(__I40E_DOWN, pf->state) && is_an) { 1778 /* Give it a little more time to try to come back */ 1779 msleep(75); 1780 if (!test_bit(__I40E_DOWN, pf->state)) 1781 return i40e_nway_reset(netdev); 1782 } 1783 1784 return err; 1785 } 1786 1787 static u32 i40e_get_msglevel(struct net_device *netdev) 1788 { 1789 struct i40e_netdev_priv *np = netdev_priv(netdev); 1790 struct i40e_pf *pf = np->vsi->back; 1791 u32 debug_mask = pf->hw.debug_mask; 1792 1793 if (debug_mask) 1794 netdev_info(netdev, "i40e debug_mask: 0x%08X\n", debug_mask); 1795 1796 return pf->msg_enable; 1797 } 1798 1799 static void i40e_set_msglevel(struct net_device *netdev, u32 data) 1800 { 1801 struct i40e_netdev_priv *np = netdev_priv(netdev); 1802 struct i40e_pf *pf = np->vsi->back; 1803 1804 if (I40E_DEBUG_USER & data) 1805 pf->hw.debug_mask = data; 1806 else 1807 pf->msg_enable = data; 1808 } 1809 1810 static int i40e_get_regs_len(struct net_device *netdev) 1811 { 1812 int reg_count = 0; 1813 int i; 1814 1815 for (i = 0; i40e_reg_list[i].offset != 0; i++) 1816 reg_count += i40e_reg_list[i].elements; 1817 1818 return reg_count * sizeof(u32); 1819 } 1820 1821 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs, 1822 void *p) 1823 { 1824 struct i40e_netdev_priv *np = netdev_priv(netdev); 1825 struct i40e_pf *pf = np->vsi->back; 1826 struct i40e_hw *hw = &pf->hw; 1827 u32 *reg_buf = p; 1828 unsigned int i, j, ri; 1829 u32 reg; 1830 1831 /* Tell ethtool which driver-version-specific regs output we have. 1832 * 1833 * At some point, if we have ethtool doing special formatting of 1834 * this data, it will rely on this version number to know how to 1835 * interpret things. Hence, this needs to be updated if/when the 1836 * diags register table is changed. 1837 */ 1838 regs->version = 1; 1839 1840 /* loop through the diags reg table for what to print */ 1841 ri = 0; 1842 for (i = 0; i40e_reg_list[i].offset != 0; i++) { 1843 for (j = 0; j < i40e_reg_list[i].elements; j++) { 1844 reg = i40e_reg_list[i].offset 1845 + (j * i40e_reg_list[i].stride); 1846 reg_buf[ri++] = rd32(hw, reg); 1847 } 1848 } 1849 1850 } 1851 1852 static int i40e_get_eeprom(struct net_device *netdev, 1853 struct ethtool_eeprom *eeprom, u8 *bytes) 1854 { 1855 struct i40e_netdev_priv *np = netdev_priv(netdev); 1856 struct i40e_hw *hw = &np->vsi->back->hw; 1857 struct i40e_pf *pf = np->vsi->back; 1858 int ret_val = 0, len, offset; 1859 u8 *eeprom_buff; 1860 u16 i, sectors; 1861 bool last; 1862 u32 magic; 1863 1864 #define I40E_NVM_SECTOR_SIZE 4096 1865 if (eeprom->len == 0) 1866 return -EINVAL; 1867 1868 /* check for NVMUpdate access method */ 1869 magic = hw->vendor_id | (hw->device_id << 16); 1870 if (eeprom->magic && eeprom->magic != magic) { 1871 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1872 int errno = 0; 1873 1874 /* make sure it is the right magic for NVMUpdate */ 1875 if ((eeprom->magic >> 16) != hw->device_id) 1876 errno = -EINVAL; 1877 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 1878 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 1879 errno = -EBUSY; 1880 else 1881 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1882 1883 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1884 dev_info(&pf->pdev->dev, 1885 "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1886 ret_val, hw->aq.asq_last_status, errno, 1887 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1888 cmd->offset, cmd->data_size); 1889 1890 return errno; 1891 } 1892 1893 /* normal ethtool get_eeprom support */ 1894 eeprom->magic = hw->vendor_id | (hw->device_id << 16); 1895 1896 eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL); 1897 if (!eeprom_buff) 1898 return -ENOMEM; 1899 1900 ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ); 1901 if (ret_val) { 1902 dev_info(&pf->pdev->dev, 1903 "Failed Acquiring NVM resource for read err=%d status=0x%x\n", 1904 ret_val, hw->aq.asq_last_status); 1905 goto free_buff; 1906 } 1907 1908 sectors = eeprom->len / I40E_NVM_SECTOR_SIZE; 1909 sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0; 1910 len = I40E_NVM_SECTOR_SIZE; 1911 last = false; 1912 for (i = 0; i < sectors; i++) { 1913 if (i == (sectors - 1)) { 1914 len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i); 1915 last = true; 1916 } 1917 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i), 1918 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len, 1919 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i), 1920 last, NULL); 1921 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) { 1922 dev_info(&pf->pdev->dev, 1923 "read NVM failed, invalid offset 0x%x\n", 1924 offset); 1925 break; 1926 } else if (ret_val && 1927 hw->aq.asq_last_status == I40E_AQ_RC_EACCES) { 1928 dev_info(&pf->pdev->dev, 1929 "read NVM failed, access, offset 0x%x\n", 1930 offset); 1931 break; 1932 } else if (ret_val) { 1933 dev_info(&pf->pdev->dev, 1934 "read NVM failed offset %d err=%d status=0x%x\n", 1935 offset, ret_val, hw->aq.asq_last_status); 1936 break; 1937 } 1938 } 1939 1940 i40e_release_nvm(hw); 1941 memcpy(bytes, (u8 *)eeprom_buff, eeprom->len); 1942 free_buff: 1943 kfree(eeprom_buff); 1944 return ret_val; 1945 } 1946 1947 static int i40e_get_eeprom_len(struct net_device *netdev) 1948 { 1949 struct i40e_netdev_priv *np = netdev_priv(netdev); 1950 struct i40e_hw *hw = &np->vsi->back->hw; 1951 u32 val; 1952 1953 #define X722_EEPROM_SCOPE_LIMIT 0x5B9FFF 1954 if (hw->mac.type == I40E_MAC_X722) { 1955 val = X722_EEPROM_SCOPE_LIMIT + 1; 1956 return val; 1957 } 1958 val = (rd32(hw, I40E_GLPCI_LBARCTRL) 1959 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK) 1960 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT; 1961 /* register returns value in power of 2, 64Kbyte chunks. */ 1962 val = (64 * 1024) * BIT(val); 1963 return val; 1964 } 1965 1966 static int i40e_set_eeprom(struct net_device *netdev, 1967 struct ethtool_eeprom *eeprom, u8 *bytes) 1968 { 1969 struct i40e_netdev_priv *np = netdev_priv(netdev); 1970 struct i40e_hw *hw = &np->vsi->back->hw; 1971 struct i40e_pf *pf = np->vsi->back; 1972 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1973 int ret_val = 0; 1974 int errno = 0; 1975 u32 magic; 1976 1977 /* normal ethtool set_eeprom is not supported */ 1978 magic = hw->vendor_id | (hw->device_id << 16); 1979 if (eeprom->magic == magic) 1980 errno = -EOPNOTSUPP; 1981 /* check for NVMUpdate access method */ 1982 else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id) 1983 errno = -EINVAL; 1984 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 1985 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 1986 errno = -EBUSY; 1987 else 1988 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1989 1990 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1991 dev_info(&pf->pdev->dev, 1992 "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1993 ret_val, hw->aq.asq_last_status, errno, 1994 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1995 cmd->offset, cmd->data_size); 1996 1997 return errno; 1998 } 1999 2000 static void i40e_get_drvinfo(struct net_device *netdev, 2001 struct ethtool_drvinfo *drvinfo) 2002 { 2003 struct i40e_netdev_priv *np = netdev_priv(netdev); 2004 struct i40e_vsi *vsi = np->vsi; 2005 struct i40e_pf *pf = vsi->back; 2006 2007 strscpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver)); 2008 strscpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw), 2009 sizeof(drvinfo->fw_version)); 2010 strscpy(drvinfo->bus_info, pci_name(pf->pdev), 2011 sizeof(drvinfo->bus_info)); 2012 drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN; 2013 if (pf->hw.pf_id == 0) 2014 drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN; 2015 } 2016 2017 static void i40e_get_ringparam(struct net_device *netdev, 2018 struct ethtool_ringparam *ring, 2019 struct kernel_ethtool_ringparam *kernel_ring, 2020 struct netlink_ext_ack *extack) 2021 { 2022 struct i40e_netdev_priv *np = netdev_priv(netdev); 2023 struct i40e_pf *pf = np->vsi->back; 2024 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; 2025 2026 ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS; 2027 ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS; 2028 ring->rx_mini_max_pending = 0; 2029 ring->rx_jumbo_max_pending = 0; 2030 ring->rx_pending = vsi->rx_rings[0]->count; 2031 ring->tx_pending = vsi->tx_rings[0]->count; 2032 ring->rx_mini_pending = 0; 2033 ring->rx_jumbo_pending = 0; 2034 } 2035 2036 static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index) 2037 { 2038 if (i40e_enabled_xdp_vsi(vsi)) { 2039 return index < vsi->num_queue_pairs || 2040 (index >= vsi->alloc_queue_pairs && 2041 index < vsi->alloc_queue_pairs + vsi->num_queue_pairs); 2042 } 2043 2044 return index < vsi->num_queue_pairs; 2045 } 2046 2047 static int i40e_set_ringparam(struct net_device *netdev, 2048 struct ethtool_ringparam *ring, 2049 struct kernel_ethtool_ringparam *kernel_ring, 2050 struct netlink_ext_ack *extack) 2051 { 2052 struct i40e_ring *tx_rings = NULL, *rx_rings = NULL; 2053 struct i40e_netdev_priv *np = netdev_priv(netdev); 2054 struct i40e_hw *hw = &np->vsi->back->hw; 2055 struct i40e_vsi *vsi = np->vsi; 2056 struct i40e_pf *pf = vsi->back; 2057 u32 new_rx_count, new_tx_count; 2058 u16 tx_alloc_queue_pairs; 2059 int timeout = 50; 2060 int i, err = 0; 2061 2062 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) 2063 return -EINVAL; 2064 2065 if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS || 2066 ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS || 2067 ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS || 2068 ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) { 2069 netdev_info(netdev, 2070 "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n", 2071 ring->tx_pending, ring->rx_pending, 2072 I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS); 2073 return -EINVAL; 2074 } 2075 2076 new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 2077 new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 2078 2079 /* if nothing to do return success */ 2080 if ((new_tx_count == vsi->tx_rings[0]->count) && 2081 (new_rx_count == vsi->rx_rings[0]->count)) 2082 return 0; 2083 2084 /* If there is a AF_XDP page pool attached to any of Rx rings, 2085 * disallow changing the number of descriptors -- regardless 2086 * if the netdev is running or not. 2087 */ 2088 if (i40e_xsk_any_rx_ring_enabled(vsi)) 2089 return -EBUSY; 2090 2091 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { 2092 timeout--; 2093 if (!timeout) 2094 return -EBUSY; 2095 usleep_range(1000, 2000); 2096 } 2097 2098 if (!netif_running(vsi->netdev)) { 2099 /* simple case - set for the next time the netdev is started */ 2100 for (i = 0; i < vsi->num_queue_pairs; i++) { 2101 vsi->tx_rings[i]->count = new_tx_count; 2102 vsi->rx_rings[i]->count = new_rx_count; 2103 if (i40e_enabled_xdp_vsi(vsi)) 2104 vsi->xdp_rings[i]->count = new_tx_count; 2105 } 2106 vsi->num_tx_desc = new_tx_count; 2107 vsi->num_rx_desc = new_rx_count; 2108 goto done; 2109 } 2110 2111 /* We can't just free everything and then setup again, 2112 * because the ISRs in MSI-X mode get passed pointers 2113 * to the Tx and Rx ring structs. 2114 */ 2115 2116 /* alloc updated Tx and XDP Tx resources */ 2117 tx_alloc_queue_pairs = vsi->alloc_queue_pairs * 2118 (i40e_enabled_xdp_vsi(vsi) ? 2 : 1); 2119 if (new_tx_count != vsi->tx_rings[0]->count) { 2120 netdev_info(netdev, 2121 "Changing Tx descriptor count from %d to %d.\n", 2122 vsi->tx_rings[0]->count, new_tx_count); 2123 tx_rings = kcalloc(tx_alloc_queue_pairs, 2124 sizeof(struct i40e_ring), GFP_KERNEL); 2125 if (!tx_rings) { 2126 err = -ENOMEM; 2127 goto done; 2128 } 2129 2130 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2131 if (!i40e_active_tx_ring_index(vsi, i)) 2132 continue; 2133 2134 tx_rings[i] = *vsi->tx_rings[i]; 2135 tx_rings[i].count = new_tx_count; 2136 /* the desc and bi pointers will be reallocated in the 2137 * setup call 2138 */ 2139 tx_rings[i].desc = NULL; 2140 tx_rings[i].rx_bi = NULL; 2141 err = i40e_setup_tx_descriptors(&tx_rings[i]); 2142 if (err) { 2143 while (i) { 2144 i--; 2145 if (!i40e_active_tx_ring_index(vsi, i)) 2146 continue; 2147 i40e_free_tx_resources(&tx_rings[i]); 2148 } 2149 kfree(tx_rings); 2150 tx_rings = NULL; 2151 2152 goto done; 2153 } 2154 } 2155 } 2156 2157 /* alloc updated Rx resources */ 2158 if (new_rx_count != vsi->rx_rings[0]->count) { 2159 netdev_info(netdev, 2160 "Changing Rx descriptor count from %d to %d\n", 2161 vsi->rx_rings[0]->count, new_rx_count); 2162 rx_rings = kcalloc(vsi->alloc_queue_pairs, 2163 sizeof(struct i40e_ring), GFP_KERNEL); 2164 if (!rx_rings) { 2165 err = -ENOMEM; 2166 goto free_tx; 2167 } 2168 2169 for (i = 0; i < vsi->num_queue_pairs; i++) { 2170 u16 unused; 2171 2172 /* clone ring and setup updated count */ 2173 rx_rings[i] = *vsi->rx_rings[i]; 2174 rx_rings[i].count = new_rx_count; 2175 /* the desc and bi pointers will be reallocated in the 2176 * setup call 2177 */ 2178 rx_rings[i].desc = NULL; 2179 rx_rings[i].rx_bi = NULL; 2180 /* Clear cloned XDP RX-queue info before setup call */ 2181 memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq)); 2182 /* this is to allow wr32 to have something to write to 2183 * during early allocation of Rx buffers 2184 */ 2185 rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS; 2186 err = i40e_setup_rx_descriptors(&rx_rings[i]); 2187 if (err) 2188 goto rx_unwind; 2189 2190 /* now allocate the Rx buffers to make sure the OS 2191 * has enough memory, any failure here means abort 2192 */ 2193 unused = I40E_DESC_UNUSED(&rx_rings[i]); 2194 err = i40e_alloc_rx_buffers(&rx_rings[i], unused); 2195 rx_unwind: 2196 if (err) { 2197 do { 2198 i40e_free_rx_resources(&rx_rings[i]); 2199 } while (i--); 2200 kfree(rx_rings); 2201 rx_rings = NULL; 2202 2203 goto free_tx; 2204 } 2205 } 2206 } 2207 2208 /* Bring interface down, copy in the new ring info, 2209 * then restore the interface 2210 */ 2211 i40e_down(vsi); 2212 2213 if (tx_rings) { 2214 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2215 if (i40e_active_tx_ring_index(vsi, i)) { 2216 i40e_free_tx_resources(vsi->tx_rings[i]); 2217 *vsi->tx_rings[i] = tx_rings[i]; 2218 } 2219 } 2220 kfree(tx_rings); 2221 tx_rings = NULL; 2222 } 2223 2224 if (rx_rings) { 2225 for (i = 0; i < vsi->num_queue_pairs; i++) { 2226 i40e_free_rx_resources(vsi->rx_rings[i]); 2227 /* get the real tail offset */ 2228 rx_rings[i].tail = vsi->rx_rings[i]->tail; 2229 /* this is to fake out the allocation routine 2230 * into thinking it has to realloc everything 2231 * but the recycling logic will let us re-use 2232 * the buffers allocated above 2233 */ 2234 rx_rings[i].next_to_use = 0; 2235 rx_rings[i].next_to_clean = 0; 2236 rx_rings[i].next_to_alloc = 0; 2237 /* do a struct copy */ 2238 *vsi->rx_rings[i] = rx_rings[i]; 2239 } 2240 kfree(rx_rings); 2241 rx_rings = NULL; 2242 } 2243 2244 vsi->num_tx_desc = new_tx_count; 2245 vsi->num_rx_desc = new_rx_count; 2246 i40e_up(vsi); 2247 2248 free_tx: 2249 /* error cleanup if the Rx allocations failed after getting Tx */ 2250 if (tx_rings) { 2251 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2252 if (i40e_active_tx_ring_index(vsi, i)) 2253 i40e_free_tx_resources(vsi->tx_rings[i]); 2254 } 2255 kfree(tx_rings); 2256 tx_rings = NULL; 2257 } 2258 2259 done: 2260 clear_bit(__I40E_CONFIG_BUSY, pf->state); 2261 2262 return err; 2263 } 2264 2265 /** 2266 * i40e_get_stats_count - return the stats count for a device 2267 * @netdev: the netdev to return the count for 2268 * 2269 * Returns the total number of statistics for this netdev. Note that even 2270 * though this is a function, it is required that the count for a specific 2271 * netdev must never change. Basing the count on static values such as the 2272 * maximum number of queues or the device type is ok. However, the API for 2273 * obtaining stats is *not* safe against changes based on non-static 2274 * values such as the *current* number of queues, or runtime flags. 2275 * 2276 * If a statistic is not always enabled, return it as part of the count 2277 * anyways, always return its string, and report its value as zero. 2278 **/ 2279 static int i40e_get_stats_count(struct net_device *netdev) 2280 { 2281 struct i40e_netdev_priv *np = netdev_priv(netdev); 2282 struct i40e_vsi *vsi = np->vsi; 2283 struct i40e_pf *pf = vsi->back; 2284 int stats_len; 2285 2286 if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1) 2287 stats_len = I40E_PF_STATS_LEN; 2288 else 2289 stats_len = I40E_VSI_STATS_LEN; 2290 2291 /* The number of stats reported for a given net_device must remain 2292 * constant throughout the life of that device. 2293 * 2294 * This is because the API for obtaining the size, strings, and stats 2295 * is spread out over three separate ethtool ioctls. There is no safe 2296 * way to lock the number of stats across these calls, so we must 2297 * assume that they will never change. 2298 * 2299 * Due to this, we report the maximum number of queues, even if not 2300 * every queue is currently configured. Since we always allocate 2301 * queues in pairs, we'll just use netdev->num_tx_queues * 2. This 2302 * works because the num_tx_queues is set at device creation and never 2303 * changes. 2304 */ 2305 stats_len += I40E_QUEUE_STATS_LEN * 2 * netdev->num_tx_queues; 2306 2307 return stats_len; 2308 } 2309 2310 static int i40e_get_sset_count(struct net_device *netdev, int sset) 2311 { 2312 struct i40e_netdev_priv *np = netdev_priv(netdev); 2313 struct i40e_vsi *vsi = np->vsi; 2314 struct i40e_pf *pf = vsi->back; 2315 2316 switch (sset) { 2317 case ETH_SS_TEST: 2318 return I40E_TEST_LEN; 2319 case ETH_SS_STATS: 2320 return i40e_get_stats_count(netdev); 2321 case ETH_SS_PRIV_FLAGS: 2322 return I40E_PRIV_FLAGS_STR_LEN + 2323 (pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0); 2324 default: 2325 return -EOPNOTSUPP; 2326 } 2327 } 2328 2329 /** 2330 * i40e_get_veb_tc_stats - copy VEB TC statistics to formatted structure 2331 * @tc: the TC statistics in VEB structure (veb->tc_stats) 2332 * @i: the index of traffic class in (veb->tc_stats) structure to copy 2333 * 2334 * Copy VEB TC statistics from structure of arrays (veb->tc_stats) to 2335 * one dimensional structure i40e_cp_veb_tc_stats. 2336 * Produce formatted i40e_cp_veb_tc_stats structure of the VEB TC 2337 * statistics for the given TC. 2338 **/ 2339 static struct i40e_cp_veb_tc_stats 2340 i40e_get_veb_tc_stats(struct i40e_veb_tc_stats *tc, unsigned int i) 2341 { 2342 struct i40e_cp_veb_tc_stats veb_tc = { 2343 .tc_rx_packets = tc->tc_rx_packets[i], 2344 .tc_rx_bytes = tc->tc_rx_bytes[i], 2345 .tc_tx_packets = tc->tc_tx_packets[i], 2346 .tc_tx_bytes = tc->tc_tx_bytes[i], 2347 }; 2348 2349 return veb_tc; 2350 } 2351 2352 /** 2353 * i40e_get_pfc_stats - copy HW PFC statistics to formatted structure 2354 * @pf: the PF device structure 2355 * @i: the priority value to copy 2356 * 2357 * The PFC stats are found as arrays in pf->stats, which is not easy to pass 2358 * into i40e_add_ethtool_stats. Produce a formatted i40e_pfc_stats structure 2359 * of the PFC stats for the given priority. 2360 **/ 2361 static inline struct i40e_pfc_stats 2362 i40e_get_pfc_stats(struct i40e_pf *pf, unsigned int i) 2363 { 2364 #define I40E_GET_PFC_STAT(stat, priority) \ 2365 .stat = pf->stats.stat[priority] 2366 2367 struct i40e_pfc_stats pfc = { 2368 I40E_GET_PFC_STAT(priority_xon_rx, i), 2369 I40E_GET_PFC_STAT(priority_xoff_rx, i), 2370 I40E_GET_PFC_STAT(priority_xon_tx, i), 2371 I40E_GET_PFC_STAT(priority_xoff_tx, i), 2372 I40E_GET_PFC_STAT(priority_xon_2_xoff, i), 2373 }; 2374 return pfc; 2375 } 2376 2377 /** 2378 * i40e_get_ethtool_stats - copy stat values into supplied buffer 2379 * @netdev: the netdev to collect stats for 2380 * @stats: ethtool stats command structure 2381 * @data: ethtool supplied buffer 2382 * 2383 * Copy the stats values for this netdev into the buffer. Expects data to be 2384 * pre-allocated to the size returned by i40e_get_stats_count.. Note that all 2385 * statistics must be copied in a static order, and the count must not change 2386 * for a given netdev. See i40e_get_stats_count for more details. 2387 * 2388 * If a statistic is not currently valid (such as a disabled queue), this 2389 * function reports its value as zero. 2390 **/ 2391 static void i40e_get_ethtool_stats(struct net_device *netdev, 2392 struct ethtool_stats *stats, u64 *data) 2393 { 2394 struct i40e_netdev_priv *np = netdev_priv(netdev); 2395 struct i40e_vsi *vsi = np->vsi; 2396 struct i40e_pf *pf = vsi->back; 2397 struct i40e_veb *veb = NULL; 2398 unsigned int i; 2399 bool veb_stats; 2400 u64 *p = data; 2401 2402 i40e_update_stats(vsi); 2403 2404 i40e_add_ethtool_stats(&data, i40e_get_vsi_stats_struct(vsi), 2405 i40e_gstrings_net_stats); 2406 2407 i40e_add_ethtool_stats(&data, vsi, i40e_gstrings_misc_stats); 2408 2409 rcu_read_lock(); 2410 for (i = 0; i < netdev->num_tx_queues; i++) { 2411 i40e_add_queue_stats(&data, READ_ONCE(vsi->tx_rings[i])); 2412 i40e_add_queue_stats(&data, READ_ONCE(vsi->rx_rings[i])); 2413 } 2414 rcu_read_unlock(); 2415 2416 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1) 2417 goto check_data_pointer; 2418 2419 veb_stats = ((pf->lan_veb != I40E_NO_VEB) && 2420 (pf->lan_veb < I40E_MAX_VEB) && 2421 (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)); 2422 2423 if (veb_stats) { 2424 veb = pf->veb[pf->lan_veb]; 2425 i40e_update_veb_stats(veb); 2426 } 2427 2428 /* If veb stats aren't enabled, pass NULL instead of the veb so that 2429 * we initialize stats to zero and update the data pointer 2430 * intelligently 2431 */ 2432 i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL, 2433 i40e_gstrings_veb_stats); 2434 2435 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) 2436 if (veb_stats) { 2437 struct i40e_cp_veb_tc_stats veb_tc = 2438 i40e_get_veb_tc_stats(&veb->tc_stats, i); 2439 2440 i40e_add_ethtool_stats(&data, &veb_tc, 2441 i40e_gstrings_veb_tc_stats); 2442 } else { 2443 i40e_add_ethtool_stats(&data, NULL, 2444 i40e_gstrings_veb_tc_stats); 2445 } 2446 2447 i40e_add_ethtool_stats(&data, pf, i40e_gstrings_stats); 2448 2449 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { 2450 struct i40e_pfc_stats pfc = i40e_get_pfc_stats(pf, i); 2451 2452 i40e_add_ethtool_stats(&data, &pfc, i40e_gstrings_pfc_stats); 2453 } 2454 2455 check_data_pointer: 2456 WARN_ONCE(data - p != i40e_get_stats_count(netdev), 2457 "ethtool stats count mismatch!"); 2458 } 2459 2460 /** 2461 * i40e_get_stat_strings - copy stat strings into supplied buffer 2462 * @netdev: the netdev to collect strings for 2463 * @data: supplied buffer to copy strings into 2464 * 2465 * Copy the strings related to stats for this netdev. Expects data to be 2466 * pre-allocated with the size reported by i40e_get_stats_count. Note that the 2467 * strings must be copied in a static order and the total count must not 2468 * change for a given netdev. See i40e_get_stats_count for more details. 2469 **/ 2470 static void i40e_get_stat_strings(struct net_device *netdev, u8 *data) 2471 { 2472 struct i40e_netdev_priv *np = netdev_priv(netdev); 2473 struct i40e_vsi *vsi = np->vsi; 2474 struct i40e_pf *pf = vsi->back; 2475 unsigned int i; 2476 u8 *p = data; 2477 2478 i40e_add_stat_strings(&data, i40e_gstrings_net_stats); 2479 2480 i40e_add_stat_strings(&data, i40e_gstrings_misc_stats); 2481 2482 for (i = 0; i < netdev->num_tx_queues; i++) { 2483 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, 2484 "tx", i); 2485 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, 2486 "rx", i); 2487 } 2488 2489 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1) 2490 goto check_data_pointer; 2491 2492 i40e_add_stat_strings(&data, i40e_gstrings_veb_stats); 2493 2494 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) 2495 i40e_add_stat_strings(&data, i40e_gstrings_veb_tc_stats, i); 2496 2497 i40e_add_stat_strings(&data, i40e_gstrings_stats); 2498 2499 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) 2500 i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i); 2501 2502 check_data_pointer: 2503 WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN, 2504 "stat strings count mismatch!"); 2505 } 2506 2507 static void i40e_get_priv_flag_strings(struct net_device *netdev, u8 *data) 2508 { 2509 struct i40e_netdev_priv *np = netdev_priv(netdev); 2510 struct i40e_vsi *vsi = np->vsi; 2511 struct i40e_pf *pf = vsi->back; 2512 unsigned int i; 2513 u8 *p = data; 2514 2515 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) 2516 ethtool_sprintf(&p, i40e_gstrings_priv_flags[i].flag_string); 2517 if (pf->hw.pf_id != 0) 2518 return; 2519 for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++) 2520 ethtool_sprintf(&p, i40e_gl_gstrings_priv_flags[i].flag_string); 2521 } 2522 2523 static void i40e_get_strings(struct net_device *netdev, u32 stringset, 2524 u8 *data) 2525 { 2526 switch (stringset) { 2527 case ETH_SS_TEST: 2528 memcpy(data, i40e_gstrings_test, 2529 I40E_TEST_LEN * ETH_GSTRING_LEN); 2530 break; 2531 case ETH_SS_STATS: 2532 i40e_get_stat_strings(netdev, data); 2533 break; 2534 case ETH_SS_PRIV_FLAGS: 2535 i40e_get_priv_flag_strings(netdev, data); 2536 break; 2537 default: 2538 break; 2539 } 2540 } 2541 2542 static int i40e_get_ts_info(struct net_device *dev, 2543 struct ethtool_ts_info *info) 2544 { 2545 struct i40e_pf *pf = i40e_netdev_to_pf(dev); 2546 2547 /* only report HW timestamping if PTP is enabled */ 2548 if (!(pf->flags & I40E_FLAG_PTP)) 2549 return ethtool_op_get_ts_info(dev, info); 2550 2551 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | 2552 SOF_TIMESTAMPING_RX_SOFTWARE | 2553 SOF_TIMESTAMPING_SOFTWARE | 2554 SOF_TIMESTAMPING_TX_HARDWARE | 2555 SOF_TIMESTAMPING_RX_HARDWARE | 2556 SOF_TIMESTAMPING_RAW_HARDWARE; 2557 2558 if (pf->ptp_clock) 2559 info->phc_index = ptp_clock_index(pf->ptp_clock); 2560 else 2561 info->phc_index = -1; 2562 2563 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON); 2564 2565 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | 2566 BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) | 2567 BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) | 2568 BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ); 2569 2570 if (pf->hw_features & I40E_HW_PTP_L4_CAPABLE) 2571 info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) | 2572 BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) | 2573 BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) | 2574 BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) | 2575 BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) | 2576 BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) | 2577 BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) | 2578 BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ); 2579 2580 return 0; 2581 } 2582 2583 static u64 i40e_link_test(struct net_device *netdev, u64 *data) 2584 { 2585 struct i40e_netdev_priv *np = netdev_priv(netdev); 2586 struct i40e_pf *pf = np->vsi->back; 2587 bool link_up = false; 2588 int status; 2589 2590 netif_info(pf, hw, netdev, "link test\n"); 2591 status = i40e_get_link_status(&pf->hw, &link_up); 2592 if (status) { 2593 netif_err(pf, drv, netdev, "link query timed out, please retry test\n"); 2594 *data = 1; 2595 return *data; 2596 } 2597 2598 if (link_up) 2599 *data = 0; 2600 else 2601 *data = 1; 2602 2603 return *data; 2604 } 2605 2606 static u64 i40e_reg_test(struct net_device *netdev, u64 *data) 2607 { 2608 struct i40e_netdev_priv *np = netdev_priv(netdev); 2609 struct i40e_pf *pf = np->vsi->back; 2610 2611 netif_info(pf, hw, netdev, "register test\n"); 2612 *data = i40e_diag_reg_test(&pf->hw); 2613 2614 return *data; 2615 } 2616 2617 static u64 i40e_eeprom_test(struct net_device *netdev, u64 *data) 2618 { 2619 struct i40e_netdev_priv *np = netdev_priv(netdev); 2620 struct i40e_pf *pf = np->vsi->back; 2621 2622 netif_info(pf, hw, netdev, "eeprom test\n"); 2623 *data = i40e_diag_eeprom_test(&pf->hw); 2624 2625 /* forcebly clear the NVM Update state machine */ 2626 pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT; 2627 2628 return *data; 2629 } 2630 2631 static u64 i40e_intr_test(struct net_device *netdev, u64 *data) 2632 { 2633 struct i40e_netdev_priv *np = netdev_priv(netdev); 2634 struct i40e_pf *pf = np->vsi->back; 2635 u16 swc_old = pf->sw_int_count; 2636 2637 netif_info(pf, hw, netdev, "interrupt test\n"); 2638 wr32(&pf->hw, I40E_PFINT_DYN_CTL0, 2639 (I40E_PFINT_DYN_CTL0_INTENA_MASK | 2640 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK | 2641 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK | 2642 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK | 2643 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK)); 2644 usleep_range(1000, 2000); 2645 *data = (swc_old == pf->sw_int_count); 2646 2647 return *data; 2648 } 2649 2650 static inline bool i40e_active_vfs(struct i40e_pf *pf) 2651 { 2652 struct i40e_vf *vfs = pf->vf; 2653 int i; 2654 2655 for (i = 0; i < pf->num_alloc_vfs; i++) 2656 if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states)) 2657 return true; 2658 return false; 2659 } 2660 2661 static inline bool i40e_active_vmdqs(struct i40e_pf *pf) 2662 { 2663 return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2); 2664 } 2665 2666 static void i40e_diag_test(struct net_device *netdev, 2667 struct ethtool_test *eth_test, u64 *data) 2668 { 2669 struct i40e_netdev_priv *np = netdev_priv(netdev); 2670 bool if_running = netif_running(netdev); 2671 struct i40e_pf *pf = np->vsi->back; 2672 2673 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 2674 /* Offline tests */ 2675 netif_info(pf, drv, netdev, "offline testing starting\n"); 2676 2677 set_bit(__I40E_TESTING, pf->state); 2678 2679 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 2680 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) { 2681 dev_warn(&pf->pdev->dev, 2682 "Cannot start offline testing when PF is in reset state.\n"); 2683 goto skip_ol_tests; 2684 } 2685 2686 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) { 2687 dev_warn(&pf->pdev->dev, 2688 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n"); 2689 goto skip_ol_tests; 2690 } 2691 2692 /* If the device is online then take it offline */ 2693 if (if_running) 2694 /* indicate we're in test mode */ 2695 i40e_close(netdev); 2696 else 2697 /* This reset does not affect link - if it is 2698 * changed to a type of reset that does affect 2699 * link then the following link test would have 2700 * to be moved to before the reset 2701 */ 2702 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 2703 2704 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 2705 eth_test->flags |= ETH_TEST_FL_FAILED; 2706 2707 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM])) 2708 eth_test->flags |= ETH_TEST_FL_FAILED; 2709 2710 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR])) 2711 eth_test->flags |= ETH_TEST_FL_FAILED; 2712 2713 /* run reg test last, a reset is required after it */ 2714 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG])) 2715 eth_test->flags |= ETH_TEST_FL_FAILED; 2716 2717 clear_bit(__I40E_TESTING, pf->state); 2718 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 2719 2720 if (if_running) 2721 i40e_open(netdev); 2722 } else { 2723 /* Online tests */ 2724 netif_info(pf, drv, netdev, "online testing starting\n"); 2725 2726 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 2727 eth_test->flags |= ETH_TEST_FL_FAILED; 2728 2729 /* Offline only tests, not run in online; pass by default */ 2730 data[I40E_ETH_TEST_REG] = 0; 2731 data[I40E_ETH_TEST_EEPROM] = 0; 2732 data[I40E_ETH_TEST_INTR] = 0; 2733 } 2734 2735 netif_info(pf, drv, netdev, "testing finished\n"); 2736 return; 2737 2738 skip_ol_tests: 2739 data[I40E_ETH_TEST_REG] = 1; 2740 data[I40E_ETH_TEST_EEPROM] = 1; 2741 data[I40E_ETH_TEST_INTR] = 1; 2742 data[I40E_ETH_TEST_LINK] = 1; 2743 eth_test->flags |= ETH_TEST_FL_FAILED; 2744 clear_bit(__I40E_TESTING, pf->state); 2745 netif_info(pf, drv, netdev, "testing failed\n"); 2746 } 2747 2748 static void i40e_get_wol(struct net_device *netdev, 2749 struct ethtool_wolinfo *wol) 2750 { 2751 struct i40e_netdev_priv *np = netdev_priv(netdev); 2752 struct i40e_pf *pf = np->vsi->back; 2753 struct i40e_hw *hw = &pf->hw; 2754 u16 wol_nvm_bits; 2755 2756 /* NVM bit on means WoL disabled for the port */ 2757 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 2758 if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) { 2759 wol->supported = 0; 2760 wol->wolopts = 0; 2761 } else { 2762 wol->supported = WAKE_MAGIC; 2763 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0); 2764 } 2765 } 2766 2767 /** 2768 * i40e_set_wol - set the WakeOnLAN configuration 2769 * @netdev: the netdev in question 2770 * @wol: the ethtool WoL setting data 2771 **/ 2772 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 2773 { 2774 struct i40e_netdev_priv *np = netdev_priv(netdev); 2775 struct i40e_pf *pf = np->vsi->back; 2776 struct i40e_vsi *vsi = np->vsi; 2777 struct i40e_hw *hw = &pf->hw; 2778 u16 wol_nvm_bits; 2779 2780 /* WoL not supported if this isn't the controlling PF on the port */ 2781 if (hw->partition_id != 1) { 2782 i40e_partition_setting_complaint(pf); 2783 return -EOPNOTSUPP; 2784 } 2785 2786 if (vsi != pf->vsi[pf->lan_vsi]) 2787 return -EOPNOTSUPP; 2788 2789 /* NVM bit on means WoL disabled for the port */ 2790 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 2791 if (BIT(hw->port) & wol_nvm_bits) 2792 return -EOPNOTSUPP; 2793 2794 /* only magic packet is supported */ 2795 if (wol->wolopts & ~WAKE_MAGIC) 2796 return -EOPNOTSUPP; 2797 2798 /* is this a new value? */ 2799 if (pf->wol_en != !!wol->wolopts) { 2800 pf->wol_en = !!wol->wolopts; 2801 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en); 2802 } 2803 2804 return 0; 2805 } 2806 2807 static int i40e_set_phys_id(struct net_device *netdev, 2808 enum ethtool_phys_id_state state) 2809 { 2810 struct i40e_netdev_priv *np = netdev_priv(netdev); 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 int ret = 0; 2816 2817 switch (state) { 2818 case ETHTOOL_ID_ACTIVE: 2819 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) { 2820 pf->led_status = i40e_led_get(hw); 2821 } else { 2822 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) 2823 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL, 2824 NULL); 2825 ret = i40e_led_get_phy(hw, &temp_status, 2826 &pf->phy_led_val); 2827 pf->led_status = temp_status; 2828 } 2829 return blink_freq; 2830 case ETHTOOL_ID_ON: 2831 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) 2832 i40e_led_set(hw, 0xf, false); 2833 else 2834 ret = i40e_led_set_phy(hw, true, pf->led_status, 0); 2835 break; 2836 case ETHTOOL_ID_OFF: 2837 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) 2838 i40e_led_set(hw, 0x0, false); 2839 else 2840 ret = i40e_led_set_phy(hw, false, pf->led_status, 0); 2841 break; 2842 case ETHTOOL_ID_INACTIVE: 2843 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) { 2844 i40e_led_set(hw, pf->led_status, false); 2845 } else { 2846 ret = i40e_led_set_phy(hw, false, pf->led_status, 2847 (pf->phy_led_val | 2848 I40E_PHY_LED_MODE_ORIG)); 2849 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) 2850 i40e_aq_set_phy_debug(hw, 0, NULL); 2851 } 2852 break; 2853 default: 2854 break; 2855 } 2856 if (ret) 2857 return -ENOENT; 2858 else 2859 return 0; 2860 } 2861 2862 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt 2863 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also 2864 * 125us (8000 interrupts per second) == ITR(62) 2865 */ 2866 2867 /** 2868 * __i40e_get_coalesce - get per-queue coalesce settings 2869 * @netdev: the netdev to check 2870 * @ec: ethtool coalesce data structure 2871 * @queue: which queue to pick 2872 * 2873 * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs 2874 * are per queue. If queue is <0 then we default to queue 0 as the 2875 * representative value. 2876 **/ 2877 static int __i40e_get_coalesce(struct net_device *netdev, 2878 struct ethtool_coalesce *ec, 2879 int queue) 2880 { 2881 struct i40e_netdev_priv *np = netdev_priv(netdev); 2882 struct i40e_ring *rx_ring, *tx_ring; 2883 struct i40e_vsi *vsi = np->vsi; 2884 2885 ec->tx_max_coalesced_frames_irq = vsi->work_limit; 2886 ec->rx_max_coalesced_frames_irq = vsi->work_limit; 2887 2888 /* rx and tx usecs has per queue value. If user doesn't specify the 2889 * queue, return queue 0's value to represent. 2890 */ 2891 if (queue < 0) 2892 queue = 0; 2893 else if (queue >= vsi->num_queue_pairs) 2894 return -EINVAL; 2895 2896 rx_ring = vsi->rx_rings[queue]; 2897 tx_ring = vsi->tx_rings[queue]; 2898 2899 if (ITR_IS_DYNAMIC(rx_ring->itr_setting)) 2900 ec->use_adaptive_rx_coalesce = 1; 2901 2902 if (ITR_IS_DYNAMIC(tx_ring->itr_setting)) 2903 ec->use_adaptive_tx_coalesce = 1; 2904 2905 ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC; 2906 ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC; 2907 2908 /* we use the _usecs_high to store/set the interrupt rate limit 2909 * that the hardware supports, that almost but not quite 2910 * fits the original intent of the ethtool variable, 2911 * the rx_coalesce_usecs_high limits total interrupts 2912 * per second from both tx/rx sources. 2913 */ 2914 ec->rx_coalesce_usecs_high = vsi->int_rate_limit; 2915 ec->tx_coalesce_usecs_high = vsi->int_rate_limit; 2916 2917 return 0; 2918 } 2919 2920 /** 2921 * i40e_get_coalesce - get a netdev's coalesce settings 2922 * @netdev: the netdev to check 2923 * @ec: ethtool coalesce data structure 2924 * @kernel_coal: ethtool CQE mode setting structure 2925 * @extack: extack for reporting error messages 2926 * 2927 * Gets the coalesce settings for a particular netdev. Note that if user has 2928 * modified per-queue settings, this only guarantees to represent queue 0. See 2929 * __i40e_get_coalesce for more details. 2930 **/ 2931 static int i40e_get_coalesce(struct net_device *netdev, 2932 struct ethtool_coalesce *ec, 2933 struct kernel_ethtool_coalesce *kernel_coal, 2934 struct netlink_ext_ack *extack) 2935 { 2936 return __i40e_get_coalesce(netdev, ec, -1); 2937 } 2938 2939 /** 2940 * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue 2941 * @netdev: netdev structure 2942 * @ec: ethtool's coalesce settings 2943 * @queue: the particular queue to read 2944 * 2945 * Will read a specific queue's coalesce settings 2946 **/ 2947 static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue, 2948 struct ethtool_coalesce *ec) 2949 { 2950 return __i40e_get_coalesce(netdev, ec, queue); 2951 } 2952 2953 /** 2954 * i40e_set_itr_per_queue - set ITR values for specific queue 2955 * @vsi: the VSI to set values for 2956 * @ec: coalesce settings from ethtool 2957 * @queue: the queue to modify 2958 * 2959 * Change the ITR settings for a specific queue. 2960 **/ 2961 static void i40e_set_itr_per_queue(struct i40e_vsi *vsi, 2962 struct ethtool_coalesce *ec, 2963 int queue) 2964 { 2965 struct i40e_ring *rx_ring = vsi->rx_rings[queue]; 2966 struct i40e_ring *tx_ring = vsi->tx_rings[queue]; 2967 struct i40e_pf *pf = vsi->back; 2968 struct i40e_hw *hw = &pf->hw; 2969 struct i40e_q_vector *q_vector; 2970 u16 intrl; 2971 2972 intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit); 2973 2974 rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs); 2975 tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs); 2976 2977 if (ec->use_adaptive_rx_coalesce) 2978 rx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2979 else 2980 rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2981 2982 if (ec->use_adaptive_tx_coalesce) 2983 tx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2984 else 2985 tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2986 2987 q_vector = rx_ring->q_vector; 2988 q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting); 2989 2990 q_vector = tx_ring->q_vector; 2991 q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting); 2992 2993 /* The interrupt handler itself will take care of programming 2994 * the Tx and Rx ITR values based on the values we have entered 2995 * into the q_vector, no need to write the values now. 2996 */ 2997 2998 wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl); 2999 i40e_flush(hw); 3000 } 3001 3002 /** 3003 * __i40e_set_coalesce - set coalesce settings for particular queue 3004 * @netdev: the netdev to change 3005 * @ec: ethtool coalesce settings 3006 * @queue: the queue to change 3007 * 3008 * Sets the coalesce settings for a particular queue. 3009 **/ 3010 static int __i40e_set_coalesce(struct net_device *netdev, 3011 struct ethtool_coalesce *ec, 3012 int queue) 3013 { 3014 struct i40e_netdev_priv *np = netdev_priv(netdev); 3015 u16 intrl_reg, cur_rx_itr, cur_tx_itr; 3016 struct i40e_vsi *vsi = np->vsi; 3017 struct i40e_pf *pf = vsi->back; 3018 int i; 3019 3020 if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq) 3021 vsi->work_limit = ec->tx_max_coalesced_frames_irq; 3022 3023 if (queue < 0) { 3024 cur_rx_itr = vsi->rx_rings[0]->itr_setting; 3025 cur_tx_itr = vsi->tx_rings[0]->itr_setting; 3026 } else if (queue < vsi->num_queue_pairs) { 3027 cur_rx_itr = vsi->rx_rings[queue]->itr_setting; 3028 cur_tx_itr = vsi->tx_rings[queue]->itr_setting; 3029 } else { 3030 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n", 3031 vsi->num_queue_pairs - 1); 3032 return -EINVAL; 3033 } 3034 3035 cur_tx_itr &= ~I40E_ITR_DYNAMIC; 3036 cur_rx_itr &= ~I40E_ITR_DYNAMIC; 3037 3038 /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */ 3039 if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) { 3040 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n"); 3041 return -EINVAL; 3042 } 3043 3044 if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) { 3045 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n", 3046 INTRL_REG_TO_USEC(I40E_MAX_INTRL)); 3047 return -EINVAL; 3048 } 3049 3050 if (ec->rx_coalesce_usecs != cur_rx_itr && 3051 ec->use_adaptive_rx_coalesce) { 3052 netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n"); 3053 return -EINVAL; 3054 } 3055 3056 if (ec->rx_coalesce_usecs > I40E_MAX_ITR) { 3057 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n"); 3058 return -EINVAL; 3059 } 3060 3061 if (ec->tx_coalesce_usecs != cur_tx_itr && 3062 ec->use_adaptive_tx_coalesce) { 3063 netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n"); 3064 return -EINVAL; 3065 } 3066 3067 if (ec->tx_coalesce_usecs > I40E_MAX_ITR) { 3068 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n"); 3069 return -EINVAL; 3070 } 3071 3072 if (ec->use_adaptive_rx_coalesce && !cur_rx_itr) 3073 ec->rx_coalesce_usecs = I40E_MIN_ITR; 3074 3075 if (ec->use_adaptive_tx_coalesce && !cur_tx_itr) 3076 ec->tx_coalesce_usecs = I40E_MIN_ITR; 3077 3078 intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high); 3079 vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg); 3080 if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) { 3081 netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n", 3082 vsi->int_rate_limit); 3083 } 3084 3085 /* rx and tx usecs has per queue value. If user doesn't specify the 3086 * queue, apply to all queues. 3087 */ 3088 if (queue < 0) { 3089 for (i = 0; i < vsi->num_queue_pairs; i++) 3090 i40e_set_itr_per_queue(vsi, ec, i); 3091 } else { 3092 i40e_set_itr_per_queue(vsi, ec, queue); 3093 } 3094 3095 return 0; 3096 } 3097 3098 /** 3099 * i40e_set_coalesce - set coalesce settings for every queue on the netdev 3100 * @netdev: the netdev to change 3101 * @ec: ethtool coalesce settings 3102 * @kernel_coal: ethtool CQE mode setting structure 3103 * @extack: extack for reporting error messages 3104 * 3105 * This will set each queue to the same coalesce settings. 3106 **/ 3107 static int i40e_set_coalesce(struct net_device *netdev, 3108 struct ethtool_coalesce *ec, 3109 struct kernel_ethtool_coalesce *kernel_coal, 3110 struct netlink_ext_ack *extack) 3111 { 3112 return __i40e_set_coalesce(netdev, ec, -1); 3113 } 3114 3115 /** 3116 * i40e_set_per_queue_coalesce - set specific queue's coalesce settings 3117 * @netdev: the netdev to change 3118 * @ec: ethtool's coalesce settings 3119 * @queue: the queue to change 3120 * 3121 * Sets the specified queue's coalesce settings. 3122 **/ 3123 static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue, 3124 struct ethtool_coalesce *ec) 3125 { 3126 return __i40e_set_coalesce(netdev, ec, queue); 3127 } 3128 3129 /** 3130 * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type 3131 * @pf: pointer to the physical function struct 3132 * @cmd: ethtool rxnfc command 3133 * 3134 * Returns Success if the flow is supported, else Invalid Input. 3135 **/ 3136 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd) 3137 { 3138 struct i40e_hw *hw = &pf->hw; 3139 u8 flow_pctype = 0; 3140 u64 i_set = 0; 3141 3142 cmd->data = 0; 3143 3144 switch (cmd->flow_type) { 3145 case TCP_V4_FLOW: 3146 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3147 break; 3148 case UDP_V4_FLOW: 3149 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3150 break; 3151 case TCP_V6_FLOW: 3152 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3153 break; 3154 case UDP_V6_FLOW: 3155 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3156 break; 3157 case SCTP_V4_FLOW: 3158 case AH_ESP_V4_FLOW: 3159 case AH_V4_FLOW: 3160 case ESP_V4_FLOW: 3161 case IPV4_FLOW: 3162 case SCTP_V6_FLOW: 3163 case AH_ESP_V6_FLOW: 3164 case AH_V6_FLOW: 3165 case ESP_V6_FLOW: 3166 case IPV6_FLOW: 3167 /* Default is src/dest for IP, no matter the L4 hashing */ 3168 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 3169 break; 3170 default: 3171 return -EINVAL; 3172 } 3173 3174 /* Read flow based hash input set register */ 3175 if (flow_pctype) { 3176 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, 3177 flow_pctype)) | 3178 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, 3179 flow_pctype)) << 32); 3180 } 3181 3182 /* Process bits of hash input set */ 3183 if (i_set) { 3184 if (i_set & I40E_L4_SRC_MASK) 3185 cmd->data |= RXH_L4_B_0_1; 3186 if (i_set & I40E_L4_DST_MASK) 3187 cmd->data |= RXH_L4_B_2_3; 3188 3189 if (cmd->flow_type == TCP_V4_FLOW || 3190 cmd->flow_type == UDP_V4_FLOW) { 3191 if (hw->mac.type == I40E_MAC_X722) { 3192 if (i_set & I40E_X722_L3_SRC_MASK) 3193 cmd->data |= RXH_IP_SRC; 3194 if (i_set & I40E_X722_L3_DST_MASK) 3195 cmd->data |= RXH_IP_DST; 3196 } else { 3197 if (i_set & I40E_L3_SRC_MASK) 3198 cmd->data |= RXH_IP_SRC; 3199 if (i_set & I40E_L3_DST_MASK) 3200 cmd->data |= RXH_IP_DST; 3201 } 3202 } else if (cmd->flow_type == TCP_V6_FLOW || 3203 cmd->flow_type == UDP_V6_FLOW) { 3204 if (i_set & I40E_L3_V6_SRC_MASK) 3205 cmd->data |= RXH_IP_SRC; 3206 if (i_set & I40E_L3_V6_DST_MASK) 3207 cmd->data |= RXH_IP_DST; 3208 } 3209 } 3210 3211 return 0; 3212 } 3213 3214 /** 3215 * i40e_check_mask - Check whether a mask field is set 3216 * @mask: the full mask value 3217 * @field: mask of the field to check 3218 * 3219 * If the given mask is fully set, return positive value. If the mask for the 3220 * field is fully unset, return zero. Otherwise return a negative error code. 3221 **/ 3222 static int i40e_check_mask(u64 mask, u64 field) 3223 { 3224 u64 value = mask & field; 3225 3226 if (value == field) 3227 return 1; 3228 else if (!value) 3229 return 0; 3230 else 3231 return -1; 3232 } 3233 3234 /** 3235 * i40e_parse_rx_flow_user_data - Deconstruct user-defined data 3236 * @fsp: pointer to rx flow specification 3237 * @data: pointer to userdef data structure for storage 3238 * 3239 * Read the user-defined data and deconstruct the value into a structure. No 3240 * other code should read the user-defined data, so as to ensure that every 3241 * place consistently reads the value correctly. 3242 * 3243 * The user-defined field is a 64bit Big Endian format value, which we 3244 * deconstruct by reading bits or bit fields from it. Single bit flags shall 3245 * be defined starting from the highest bits, while small bit field values 3246 * shall be defined starting from the lowest bits. 3247 * 3248 * Returns 0 if the data is valid, and non-zero if the userdef data is invalid 3249 * and the filter should be rejected. The data structure will always be 3250 * modified even if FLOW_EXT is not set. 3251 * 3252 **/ 3253 static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 3254 struct i40e_rx_flow_userdef *data) 3255 { 3256 u64 value, mask; 3257 int valid; 3258 3259 /* Zero memory first so it's always consistent. */ 3260 memset(data, 0, sizeof(*data)); 3261 3262 if (!(fsp->flow_type & FLOW_EXT)) 3263 return 0; 3264 3265 value = be64_to_cpu(*((__be64 *)fsp->h_ext.data)); 3266 mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data)); 3267 3268 #define I40E_USERDEF_FLEX_WORD GENMASK_ULL(15, 0) 3269 #define I40E_USERDEF_FLEX_OFFSET GENMASK_ULL(31, 16) 3270 #define I40E_USERDEF_FLEX_FILTER GENMASK_ULL(31, 0) 3271 3272 valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER); 3273 if (valid < 0) { 3274 return -EINVAL; 3275 } else if (valid) { 3276 data->flex_word = value & I40E_USERDEF_FLEX_WORD; 3277 data->flex_offset = 3278 (value & I40E_USERDEF_FLEX_OFFSET) >> 16; 3279 data->flex_filter = true; 3280 } 3281 3282 return 0; 3283 } 3284 3285 /** 3286 * i40e_fill_rx_flow_user_data - Fill in user-defined data field 3287 * @fsp: pointer to rx_flow specification 3288 * @data: pointer to return userdef data 3289 * 3290 * Reads the userdef data structure and properly fills in the user defined 3291 * fields of the rx_flow_spec. 3292 **/ 3293 static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 3294 struct i40e_rx_flow_userdef *data) 3295 { 3296 u64 value = 0, mask = 0; 3297 3298 if (data->flex_filter) { 3299 value |= data->flex_word; 3300 value |= (u64)data->flex_offset << 16; 3301 mask |= I40E_USERDEF_FLEX_FILTER; 3302 } 3303 3304 if (value || mask) 3305 fsp->flow_type |= FLOW_EXT; 3306 3307 *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value); 3308 *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask); 3309 } 3310 3311 /** 3312 * i40e_get_ethtool_fdir_all - Populates the rule count of a command 3313 * @pf: Pointer to the physical function struct 3314 * @cmd: The command to get or set Rx flow classification rules 3315 * @rule_locs: Array of used rule locations 3316 * 3317 * This function populates both the total and actual rule count of 3318 * the ethtool flow classification command 3319 * 3320 * Returns 0 on success or -EMSGSIZE if entry not found 3321 **/ 3322 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf, 3323 struct ethtool_rxnfc *cmd, 3324 u32 *rule_locs) 3325 { 3326 struct i40e_fdir_filter *rule; 3327 struct hlist_node *node2; 3328 int cnt = 0; 3329 3330 /* report total rule count */ 3331 cmd->data = i40e_get_fd_cnt_all(pf); 3332 3333 hlist_for_each_entry_safe(rule, node2, 3334 &pf->fdir_filter_list, fdir_node) { 3335 if (cnt == cmd->rule_cnt) 3336 return -EMSGSIZE; 3337 3338 rule_locs[cnt] = rule->fd_id; 3339 cnt++; 3340 } 3341 3342 cmd->rule_cnt = cnt; 3343 3344 return 0; 3345 } 3346 3347 /** 3348 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow 3349 * @pf: Pointer to the physical function struct 3350 * @cmd: The command to get or set Rx flow classification rules 3351 * 3352 * This function looks up a filter based on the Rx flow classification 3353 * command and fills the flow spec info for it if found 3354 * 3355 * Returns 0 on success or -EINVAL if filter not found 3356 **/ 3357 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf, 3358 struct ethtool_rxnfc *cmd) 3359 { 3360 struct ethtool_rx_flow_spec *fsp = 3361 (struct ethtool_rx_flow_spec *)&cmd->fs; 3362 struct i40e_rx_flow_userdef userdef = {0}; 3363 struct i40e_fdir_filter *rule = NULL; 3364 struct hlist_node *node2; 3365 u64 input_set; 3366 u16 index; 3367 3368 hlist_for_each_entry_safe(rule, node2, 3369 &pf->fdir_filter_list, fdir_node) { 3370 if (fsp->location <= rule->fd_id) 3371 break; 3372 } 3373 3374 if (!rule || fsp->location != rule->fd_id) 3375 return -EINVAL; 3376 3377 fsp->flow_type = rule->flow_type; 3378 if (fsp->flow_type == IP_USER_FLOW) { 3379 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4; 3380 fsp->h_u.usr_ip4_spec.proto = 0; 3381 fsp->m_u.usr_ip4_spec.proto = 0; 3382 } 3383 3384 if (fsp->flow_type == IPV6_USER_FLOW || 3385 fsp->flow_type == UDP_V6_FLOW || 3386 fsp->flow_type == TCP_V6_FLOW || 3387 fsp->flow_type == SCTP_V6_FLOW) { 3388 /* Reverse the src and dest notion, since the HW views them 3389 * from Tx perspective where as the user expects it from 3390 * Rx filter view. 3391 */ 3392 fsp->h_u.tcp_ip6_spec.psrc = rule->dst_port; 3393 fsp->h_u.tcp_ip6_spec.pdst = rule->src_port; 3394 memcpy(fsp->h_u.tcp_ip6_spec.ip6dst, rule->src_ip6, 3395 sizeof(__be32) * 4); 3396 memcpy(fsp->h_u.tcp_ip6_spec.ip6src, rule->dst_ip6, 3397 sizeof(__be32) * 4); 3398 } else { 3399 /* Reverse the src and dest notion, since the HW views them 3400 * from Tx perspective where as the user expects it from 3401 * Rx filter view. 3402 */ 3403 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port; 3404 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port; 3405 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip; 3406 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip; 3407 } 3408 3409 switch (rule->flow_type) { 3410 case SCTP_V4_FLOW: 3411 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP; 3412 break; 3413 case TCP_V4_FLOW: 3414 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3415 break; 3416 case UDP_V4_FLOW: 3417 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3418 break; 3419 case SCTP_V6_FLOW: 3420 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP; 3421 break; 3422 case TCP_V6_FLOW: 3423 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3424 break; 3425 case UDP_V6_FLOW: 3426 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3427 break; 3428 case IP_USER_FLOW: 3429 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER; 3430 break; 3431 case IPV6_USER_FLOW: 3432 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER; 3433 break; 3434 default: 3435 /* If we have stored a filter with a flow type not listed here 3436 * it is almost certainly a driver bug. WARN(), and then 3437 * assign the input_set as if all fields are enabled to avoid 3438 * reading unassigned memory. 3439 */ 3440 WARN(1, "Missing input set index for flow_type %d\n", 3441 rule->flow_type); 3442 input_set = 0xFFFFFFFFFFFFFFFFULL; 3443 goto no_input_set; 3444 } 3445 3446 input_set = i40e_read_fd_input_set(pf, index); 3447 3448 no_input_set: 3449 if (input_set & I40E_L3_V6_SRC_MASK) { 3450 fsp->m_u.tcp_ip6_spec.ip6src[0] = htonl(0xFFFFFFFF); 3451 fsp->m_u.tcp_ip6_spec.ip6src[1] = htonl(0xFFFFFFFF); 3452 fsp->m_u.tcp_ip6_spec.ip6src[2] = htonl(0xFFFFFFFF); 3453 fsp->m_u.tcp_ip6_spec.ip6src[3] = htonl(0xFFFFFFFF); 3454 } 3455 3456 if (input_set & I40E_L3_V6_DST_MASK) { 3457 fsp->m_u.tcp_ip6_spec.ip6dst[0] = htonl(0xFFFFFFFF); 3458 fsp->m_u.tcp_ip6_spec.ip6dst[1] = htonl(0xFFFFFFFF); 3459 fsp->m_u.tcp_ip6_spec.ip6dst[2] = htonl(0xFFFFFFFF); 3460 fsp->m_u.tcp_ip6_spec.ip6dst[3] = htonl(0xFFFFFFFF); 3461 } 3462 3463 if (input_set & I40E_L3_SRC_MASK) 3464 fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF); 3465 3466 if (input_set & I40E_L3_DST_MASK) 3467 fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF); 3468 3469 if (input_set & I40E_L4_SRC_MASK) 3470 fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF); 3471 3472 if (input_set & I40E_L4_DST_MASK) 3473 fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF); 3474 3475 if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET) 3476 fsp->ring_cookie = RX_CLS_FLOW_DISC; 3477 else 3478 fsp->ring_cookie = rule->q_index; 3479 3480 if (rule->vlan_tag) { 3481 fsp->h_ext.vlan_etype = rule->vlan_etype; 3482 fsp->m_ext.vlan_etype = htons(0xFFFF); 3483 fsp->h_ext.vlan_tci = rule->vlan_tag; 3484 fsp->m_ext.vlan_tci = htons(0xFFFF); 3485 fsp->flow_type |= FLOW_EXT; 3486 } 3487 3488 if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) { 3489 struct i40e_vsi *vsi; 3490 3491 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi); 3492 if (vsi && vsi->type == I40E_VSI_SRIOV) { 3493 /* VFs are zero-indexed by the driver, but ethtool 3494 * expects them to be one-indexed, so add one here 3495 */ 3496 u64 ring_vf = vsi->vf_id + 1; 3497 3498 ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF; 3499 fsp->ring_cookie |= ring_vf; 3500 } 3501 } 3502 3503 if (rule->flex_filter) { 3504 userdef.flex_filter = true; 3505 userdef.flex_word = be16_to_cpu(rule->flex_word); 3506 userdef.flex_offset = rule->flex_offset; 3507 } 3508 3509 i40e_fill_rx_flow_user_data(fsp, &userdef); 3510 3511 return 0; 3512 } 3513 3514 /** 3515 * i40e_get_rxnfc - command to get RX flow classification rules 3516 * @netdev: network interface device structure 3517 * @cmd: ethtool rxnfc command 3518 * @rule_locs: pointer to store rule data 3519 * 3520 * Returns Success if the command is supported. 3521 **/ 3522 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd, 3523 u32 *rule_locs) 3524 { 3525 struct i40e_netdev_priv *np = netdev_priv(netdev); 3526 struct i40e_vsi *vsi = np->vsi; 3527 struct i40e_pf *pf = vsi->back; 3528 int ret = -EOPNOTSUPP; 3529 3530 switch (cmd->cmd) { 3531 case ETHTOOL_GRXRINGS: 3532 cmd->data = vsi->rss_size; 3533 ret = 0; 3534 break; 3535 case ETHTOOL_GRXFH: 3536 ret = i40e_get_rss_hash_opts(pf, cmd); 3537 break; 3538 case ETHTOOL_GRXCLSRLCNT: 3539 cmd->rule_cnt = pf->fdir_pf_active_filters; 3540 /* report total rule count */ 3541 cmd->data = i40e_get_fd_cnt_all(pf); 3542 ret = 0; 3543 break; 3544 case ETHTOOL_GRXCLSRULE: 3545 ret = i40e_get_ethtool_fdir_entry(pf, cmd); 3546 break; 3547 case ETHTOOL_GRXCLSRLALL: 3548 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs); 3549 break; 3550 default: 3551 break; 3552 } 3553 3554 return ret; 3555 } 3556 3557 /** 3558 * i40e_get_rss_hash_bits - Read RSS Hash bits from register 3559 * @hw: hw structure 3560 * @nfc: pointer to user request 3561 * @i_setc: bits currently set 3562 * 3563 * Returns value of bits to be set per user request 3564 **/ 3565 static u64 i40e_get_rss_hash_bits(struct i40e_hw *hw, 3566 struct ethtool_rxnfc *nfc, 3567 u64 i_setc) 3568 { 3569 u64 i_set = i_setc; 3570 u64 src_l3 = 0, dst_l3 = 0; 3571 3572 if (nfc->data & RXH_L4_B_0_1) 3573 i_set |= I40E_L4_SRC_MASK; 3574 else 3575 i_set &= ~I40E_L4_SRC_MASK; 3576 if (nfc->data & RXH_L4_B_2_3) 3577 i_set |= I40E_L4_DST_MASK; 3578 else 3579 i_set &= ~I40E_L4_DST_MASK; 3580 3581 if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) { 3582 src_l3 = I40E_L3_V6_SRC_MASK; 3583 dst_l3 = I40E_L3_V6_DST_MASK; 3584 } else if (nfc->flow_type == TCP_V4_FLOW || 3585 nfc->flow_type == UDP_V4_FLOW) { 3586 if (hw->mac.type == I40E_MAC_X722) { 3587 src_l3 = I40E_X722_L3_SRC_MASK; 3588 dst_l3 = I40E_X722_L3_DST_MASK; 3589 } else { 3590 src_l3 = I40E_L3_SRC_MASK; 3591 dst_l3 = I40E_L3_DST_MASK; 3592 } 3593 } else { 3594 /* Any other flow type are not supported here */ 3595 return i_set; 3596 } 3597 3598 if (nfc->data & RXH_IP_SRC) 3599 i_set |= src_l3; 3600 else 3601 i_set &= ~src_l3; 3602 if (nfc->data & RXH_IP_DST) 3603 i_set |= dst_l3; 3604 else 3605 i_set &= ~dst_l3; 3606 3607 return i_set; 3608 } 3609 3610 #define FLOW_PCTYPES_SIZE 64 3611 /** 3612 * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash 3613 * @pf: pointer to the physical function struct 3614 * @nfc: ethtool rxnfc command 3615 * 3616 * Returns Success if the flow input set is supported. 3617 **/ 3618 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc) 3619 { 3620 struct i40e_hw *hw = &pf->hw; 3621 u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) | 3622 ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32); 3623 DECLARE_BITMAP(flow_pctypes, FLOW_PCTYPES_SIZE); 3624 u64 i_set, i_setc; 3625 3626 bitmap_zero(flow_pctypes, FLOW_PCTYPES_SIZE); 3627 3628 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 3629 dev_err(&pf->pdev->dev, 3630 "Change of RSS hash input set is not supported when MFP mode is enabled\n"); 3631 return -EOPNOTSUPP; 3632 } 3633 3634 /* RSS does not support anything other than hashing 3635 * to queues on src and dst IPs and ports 3636 */ 3637 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 3638 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 3639 return -EINVAL; 3640 3641 switch (nfc->flow_type) { 3642 case TCP_V4_FLOW: 3643 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_TCP, flow_pctypes); 3644 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3645 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK, 3646 flow_pctypes); 3647 break; 3648 case TCP_V6_FLOW: 3649 set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_TCP, flow_pctypes); 3650 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3651 set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK, 3652 flow_pctypes); 3653 break; 3654 case UDP_V4_FLOW: 3655 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_UDP, flow_pctypes); 3656 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) { 3657 set_bit(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP, 3658 flow_pctypes); 3659 set_bit(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP, 3660 flow_pctypes); 3661 } 3662 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 3663 break; 3664 case UDP_V6_FLOW: 3665 set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_UDP, flow_pctypes); 3666 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) { 3667 set_bit(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP, 3668 flow_pctypes); 3669 set_bit(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP, 3670 flow_pctypes); 3671 } 3672 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 3673 break; 3674 case AH_ESP_V4_FLOW: 3675 case AH_V4_FLOW: 3676 case ESP_V4_FLOW: 3677 case SCTP_V4_FLOW: 3678 if ((nfc->data & RXH_L4_B_0_1) || 3679 (nfc->data & RXH_L4_B_2_3)) 3680 return -EINVAL; 3681 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER); 3682 break; 3683 case AH_ESP_V6_FLOW: 3684 case AH_V6_FLOW: 3685 case ESP_V6_FLOW: 3686 case SCTP_V6_FLOW: 3687 if ((nfc->data & RXH_L4_B_0_1) || 3688 (nfc->data & RXH_L4_B_2_3)) 3689 return -EINVAL; 3690 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER); 3691 break; 3692 case IPV4_FLOW: 3693 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) | 3694 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 3695 break; 3696 case IPV6_FLOW: 3697 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) | 3698 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 3699 break; 3700 default: 3701 return -EINVAL; 3702 } 3703 3704 if (bitmap_weight(flow_pctypes, FLOW_PCTYPES_SIZE)) { 3705 u8 flow_id; 3706 3707 for_each_set_bit(flow_id, flow_pctypes, FLOW_PCTYPES_SIZE) { 3708 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id)) | 3709 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id)) << 32); 3710 i_set = i40e_get_rss_hash_bits(&pf->hw, nfc, i_setc); 3711 3712 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id), 3713 (u32)i_set); 3714 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id), 3715 (u32)(i_set >> 32)); 3716 hena |= BIT_ULL(flow_id); 3717 } 3718 } 3719 3720 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena); 3721 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32)); 3722 i40e_flush(hw); 3723 3724 return 0; 3725 } 3726 3727 /** 3728 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry 3729 * @vsi: Pointer to the targeted VSI 3730 * @input: The filter to update or NULL to indicate deletion 3731 * @sw_idx: Software index to the filter 3732 * @cmd: The command to get or set Rx flow classification rules 3733 * 3734 * This function updates (or deletes) a Flow Director entry from 3735 * the hlist of the corresponding PF 3736 * 3737 * Returns 0 on success 3738 **/ 3739 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi, 3740 struct i40e_fdir_filter *input, 3741 u16 sw_idx, 3742 struct ethtool_rxnfc *cmd) 3743 { 3744 struct i40e_fdir_filter *rule, *parent; 3745 struct i40e_pf *pf = vsi->back; 3746 struct hlist_node *node2; 3747 int err = -EINVAL; 3748 3749 parent = NULL; 3750 rule = NULL; 3751 3752 hlist_for_each_entry_safe(rule, node2, 3753 &pf->fdir_filter_list, fdir_node) { 3754 /* hash found, or no matching entry */ 3755 if (rule->fd_id >= sw_idx) 3756 break; 3757 parent = rule; 3758 } 3759 3760 /* if there is an old rule occupying our place remove it */ 3761 if (rule && (rule->fd_id == sw_idx)) { 3762 /* Remove this rule, since we're either deleting it, or 3763 * replacing it. 3764 */ 3765 err = i40e_add_del_fdir(vsi, rule, false); 3766 hlist_del(&rule->fdir_node); 3767 kfree(rule); 3768 pf->fdir_pf_active_filters--; 3769 } 3770 3771 /* If we weren't given an input, this is a delete, so just return the 3772 * error code indicating if there was an entry at the requested slot 3773 */ 3774 if (!input) 3775 return err; 3776 3777 /* Otherwise, install the new rule as requested */ 3778 INIT_HLIST_NODE(&input->fdir_node); 3779 3780 /* add filter to the list */ 3781 if (parent) 3782 hlist_add_behind(&input->fdir_node, &parent->fdir_node); 3783 else 3784 hlist_add_head(&input->fdir_node, 3785 &pf->fdir_filter_list); 3786 3787 /* update counts */ 3788 pf->fdir_pf_active_filters++; 3789 3790 return 0; 3791 } 3792 3793 /** 3794 * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table 3795 * @pf: pointer to PF structure 3796 * 3797 * This function searches the list of filters and determines which FLX_PIT 3798 * entries are still required. It will prune any entries which are no longer 3799 * in use after the deletion. 3800 **/ 3801 static void i40e_prune_flex_pit_list(struct i40e_pf *pf) 3802 { 3803 struct i40e_flex_pit *entry, *tmp; 3804 struct i40e_fdir_filter *rule; 3805 3806 /* First, we'll check the l3 table */ 3807 list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) { 3808 bool found = false; 3809 3810 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3811 if (rule->flow_type != IP_USER_FLOW) 3812 continue; 3813 if (rule->flex_filter && 3814 rule->flex_offset == entry->src_offset) { 3815 found = true; 3816 break; 3817 } 3818 } 3819 3820 /* If we didn't find the filter, then we can prune this entry 3821 * from the list. 3822 */ 3823 if (!found) { 3824 list_del(&entry->list); 3825 kfree(entry); 3826 } 3827 } 3828 3829 /* Followed by the L4 table */ 3830 list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) { 3831 bool found = false; 3832 3833 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3834 /* Skip this filter if it's L3, since we already 3835 * checked those in the above loop 3836 */ 3837 if (rule->flow_type == IP_USER_FLOW) 3838 continue; 3839 if (rule->flex_filter && 3840 rule->flex_offset == entry->src_offset) { 3841 found = true; 3842 break; 3843 } 3844 } 3845 3846 /* If we didn't find the filter, then we can prune this entry 3847 * from the list. 3848 */ 3849 if (!found) { 3850 list_del(&entry->list); 3851 kfree(entry); 3852 } 3853 } 3854 } 3855 3856 /** 3857 * i40e_del_fdir_entry - Deletes a Flow Director filter entry 3858 * @vsi: Pointer to the targeted VSI 3859 * @cmd: The command to get or set Rx flow classification rules 3860 * 3861 * The function removes a Flow Director filter entry from the 3862 * hlist of the corresponding PF 3863 * 3864 * Returns 0 on success 3865 */ 3866 static int i40e_del_fdir_entry(struct i40e_vsi *vsi, 3867 struct ethtool_rxnfc *cmd) 3868 { 3869 struct ethtool_rx_flow_spec *fsp = 3870 (struct ethtool_rx_flow_spec *)&cmd->fs; 3871 struct i40e_pf *pf = vsi->back; 3872 int ret = 0; 3873 3874 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 3875 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 3876 return -EBUSY; 3877 3878 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 3879 return -EBUSY; 3880 3881 ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd); 3882 3883 i40e_prune_flex_pit_list(pf); 3884 3885 i40e_fdir_check_and_reenable(pf); 3886 return ret; 3887 } 3888 3889 /** 3890 * i40e_unused_pit_index - Find an unused PIT index for given list 3891 * @pf: the PF data structure 3892 * 3893 * Find the first unused flexible PIT index entry. We search both the L3 and 3894 * L4 flexible PIT lists so that the returned index is unique and unused by 3895 * either currently programmed L3 or L4 filters. We use a bit field as storage 3896 * to track which indexes are already used. 3897 **/ 3898 static u8 i40e_unused_pit_index(struct i40e_pf *pf) 3899 { 3900 unsigned long available_index = 0xFF; 3901 struct i40e_flex_pit *entry; 3902 3903 /* We need to make sure that the new index isn't in use by either L3 3904 * or L4 filters so that IP_USER_FLOW filters can program both L3 and 3905 * L4 to use the same index. 3906 */ 3907 3908 list_for_each_entry(entry, &pf->l4_flex_pit_list, list) 3909 clear_bit(entry->pit_index, &available_index); 3910 3911 list_for_each_entry(entry, &pf->l3_flex_pit_list, list) 3912 clear_bit(entry->pit_index, &available_index); 3913 3914 return find_first_bit(&available_index, 8); 3915 } 3916 3917 /** 3918 * i40e_find_flex_offset - Find an existing flex src_offset 3919 * @flex_pit_list: L3 or L4 flex PIT list 3920 * @src_offset: new src_offset to find 3921 * 3922 * Searches the flex_pit_list for an existing offset. If no offset is 3923 * currently programmed, then this will return an ERR_PTR if there is no space 3924 * to add a new offset, otherwise it returns NULL. 3925 **/ 3926 static 3927 struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list, 3928 u16 src_offset) 3929 { 3930 struct i40e_flex_pit *entry; 3931 int size = 0; 3932 3933 /* Search for the src_offset first. If we find a matching entry 3934 * already programmed, we can simply re-use it. 3935 */ 3936 list_for_each_entry(entry, flex_pit_list, list) { 3937 size++; 3938 if (entry->src_offset == src_offset) 3939 return entry; 3940 } 3941 3942 /* If we haven't found an entry yet, then the provided src offset has 3943 * not yet been programmed. We will program the src offset later on, 3944 * but we need to indicate whether there is enough space to do so 3945 * here. We'll make use of ERR_PTR for this purpose. 3946 */ 3947 if (size >= I40E_FLEX_PIT_TABLE_SIZE) 3948 return ERR_PTR(-ENOSPC); 3949 3950 return NULL; 3951 } 3952 3953 /** 3954 * i40e_add_flex_offset - Add src_offset to flex PIT table list 3955 * @flex_pit_list: L3 or L4 flex PIT list 3956 * @src_offset: new src_offset to add 3957 * @pit_index: the PIT index to program 3958 * 3959 * This function programs the new src_offset to the list. It is expected that 3960 * i40e_find_flex_offset has already been tried and returned NULL, indicating 3961 * that this offset is not programmed, and that the list has enough space to 3962 * store another offset. 3963 * 3964 * Returns 0 on success, and negative value on error. 3965 **/ 3966 static int i40e_add_flex_offset(struct list_head *flex_pit_list, 3967 u16 src_offset, 3968 u8 pit_index) 3969 { 3970 struct i40e_flex_pit *new_pit, *entry; 3971 3972 new_pit = kzalloc(sizeof(*entry), GFP_KERNEL); 3973 if (!new_pit) 3974 return -ENOMEM; 3975 3976 new_pit->src_offset = src_offset; 3977 new_pit->pit_index = pit_index; 3978 3979 /* We need to insert this item such that the list is sorted by 3980 * src_offset in ascending order. 3981 */ 3982 list_for_each_entry(entry, flex_pit_list, list) { 3983 if (new_pit->src_offset < entry->src_offset) { 3984 list_add_tail(&new_pit->list, &entry->list); 3985 return 0; 3986 } 3987 3988 /* If we found an entry with our offset already programmed we 3989 * can simply return here, after freeing the memory. However, 3990 * if the pit_index does not match we need to report an error. 3991 */ 3992 if (new_pit->src_offset == entry->src_offset) { 3993 int err = 0; 3994 3995 /* If the PIT index is not the same we can't re-use 3996 * the entry, so we must report an error. 3997 */ 3998 if (new_pit->pit_index != entry->pit_index) 3999 err = -EINVAL; 4000 4001 kfree(new_pit); 4002 return err; 4003 } 4004 } 4005 4006 /* If we reached here, then we haven't yet added the item. This means 4007 * that we should add the item at the end of the list. 4008 */ 4009 list_add_tail(&new_pit->list, flex_pit_list); 4010 return 0; 4011 } 4012 4013 /** 4014 * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table 4015 * @pf: Pointer to the PF structure 4016 * @flex_pit_list: list of flexible src offsets in use 4017 * @flex_pit_start: index to first entry for this section of the table 4018 * 4019 * In order to handle flexible data, the hardware uses a table of values 4020 * called the FLX_PIT table. This table is used to indicate which sections of 4021 * the input correspond to what PIT index values. Unfortunately, hardware is 4022 * very restrictive about programming this table. Entries must be ordered by 4023 * src_offset in ascending order, without duplicates. Additionally, unused 4024 * entries must be set to the unused index value, and must have valid size and 4025 * length according to the src_offset ordering. 4026 * 4027 * This function will reprogram the FLX_PIT register from a book-keeping 4028 * structure that we guarantee is already ordered correctly, and has no more 4029 * than 3 entries. 4030 * 4031 * To make things easier, we only support flexible values of one word length, 4032 * rather than allowing variable length flexible values. 4033 **/ 4034 static void __i40e_reprogram_flex_pit(struct i40e_pf *pf, 4035 struct list_head *flex_pit_list, 4036 int flex_pit_start) 4037 { 4038 struct i40e_flex_pit *entry = NULL; 4039 u16 last_offset = 0; 4040 int i = 0, j = 0; 4041 4042 /* First, loop over the list of flex PIT entries, and reprogram the 4043 * registers. 4044 */ 4045 list_for_each_entry(entry, flex_pit_list, list) { 4046 /* We have to be careful when programming values for the 4047 * largest SRC_OFFSET value. It is possible that adding 4048 * additional empty values at the end would overflow the space 4049 * for the SRC_OFFSET in the FLX_PIT register. To avoid this, 4050 * we check here and add the empty values prior to adding the 4051 * largest value. 4052 * 4053 * To determine this, we will use a loop from i+1 to 3, which 4054 * will determine whether the unused entries would have valid 4055 * SRC_OFFSET. Note that there cannot be extra entries past 4056 * this value, because the only valid values would have been 4057 * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not 4058 * have been added to the list in the first place. 4059 */ 4060 for (j = i + 1; j < 3; j++) { 4061 u16 offset = entry->src_offset + j; 4062 int index = flex_pit_start + i; 4063 u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 4064 1, 4065 offset - 3); 4066 4067 if (offset > I40E_MAX_FLEX_SRC_OFFSET) { 4068 i40e_write_rx_ctl(&pf->hw, 4069 I40E_PRTQF_FLX_PIT(index), 4070 value); 4071 i++; 4072 } 4073 } 4074 4075 /* Now, we can program the actual value into the table */ 4076 i40e_write_rx_ctl(&pf->hw, 4077 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 4078 I40E_FLEX_PREP_VAL(entry->pit_index + 50, 4079 1, 4080 entry->src_offset)); 4081 i++; 4082 } 4083 4084 /* In order to program the last entries in the table, we need to 4085 * determine the valid offset. If the list is empty, we'll just start 4086 * with 0. Otherwise, we'll start with the last item offset and add 1. 4087 * This ensures that all entries have valid sizes. If we don't do this 4088 * correctly, the hardware will disable flexible field parsing. 4089 */ 4090 if (!list_empty(flex_pit_list)) 4091 last_offset = list_prev_entry(entry, list)->src_offset + 1; 4092 4093 for (; i < 3; i++, last_offset++) { 4094 i40e_write_rx_ctl(&pf->hw, 4095 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 4096 I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 4097 1, 4098 last_offset)); 4099 } 4100 } 4101 4102 /** 4103 * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change 4104 * @pf: pointer to the PF structure 4105 * 4106 * This function reprograms both the L3 and L4 FLX_PIT tables. See the 4107 * internal helper function for implementation details. 4108 **/ 4109 static void i40e_reprogram_flex_pit(struct i40e_pf *pf) 4110 { 4111 __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list, 4112 I40E_FLEX_PIT_IDX_START_L3); 4113 4114 __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list, 4115 I40E_FLEX_PIT_IDX_START_L4); 4116 4117 /* We also need to program the L3 and L4 GLQF ORT register */ 4118 i40e_write_rx_ctl(&pf->hw, 4119 I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX), 4120 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3, 4121 3, 1)); 4122 4123 i40e_write_rx_ctl(&pf->hw, 4124 I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX), 4125 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4, 4126 3, 1)); 4127 } 4128 4129 /** 4130 * i40e_flow_str - Converts a flow_type into a human readable string 4131 * @fsp: the flow specification 4132 * 4133 * Currently only flow types we support are included here, and the string 4134 * value attempts to match what ethtool would use to configure this flow type. 4135 **/ 4136 static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp) 4137 { 4138 switch (fsp->flow_type & ~FLOW_EXT) { 4139 case TCP_V4_FLOW: 4140 return "tcp4"; 4141 case UDP_V4_FLOW: 4142 return "udp4"; 4143 case SCTP_V4_FLOW: 4144 return "sctp4"; 4145 case IP_USER_FLOW: 4146 return "ip4"; 4147 case TCP_V6_FLOW: 4148 return "tcp6"; 4149 case UDP_V6_FLOW: 4150 return "udp6"; 4151 case SCTP_V6_FLOW: 4152 return "sctp6"; 4153 case IPV6_USER_FLOW: 4154 return "ip6"; 4155 default: 4156 return "unknown"; 4157 } 4158 } 4159 4160 /** 4161 * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index 4162 * @pit_index: PIT index to convert 4163 * 4164 * Returns the mask for a given PIT index. Will return 0 if the pit_index is 4165 * of range. 4166 **/ 4167 static u64 i40e_pit_index_to_mask(int pit_index) 4168 { 4169 switch (pit_index) { 4170 case 0: 4171 return I40E_FLEX_50_MASK; 4172 case 1: 4173 return I40E_FLEX_51_MASK; 4174 case 2: 4175 return I40E_FLEX_52_MASK; 4176 case 3: 4177 return I40E_FLEX_53_MASK; 4178 case 4: 4179 return I40E_FLEX_54_MASK; 4180 case 5: 4181 return I40E_FLEX_55_MASK; 4182 case 6: 4183 return I40E_FLEX_56_MASK; 4184 case 7: 4185 return I40E_FLEX_57_MASK; 4186 default: 4187 return 0; 4188 } 4189 } 4190 4191 /** 4192 * i40e_print_input_set - Show changes between two input sets 4193 * @vsi: the vsi being configured 4194 * @old: the old input set 4195 * @new: the new input set 4196 * 4197 * Print the difference between old and new input sets by showing which series 4198 * of words are toggled on or off. Only displays the bits we actually support 4199 * changing. 4200 **/ 4201 static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new) 4202 { 4203 struct i40e_pf *pf = vsi->back; 4204 bool old_value, new_value; 4205 int i; 4206 4207 old_value = !!(old & I40E_L3_SRC_MASK); 4208 new_value = !!(new & I40E_L3_SRC_MASK); 4209 if (old_value != new_value) 4210 netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n", 4211 old_value ? "ON" : "OFF", 4212 new_value ? "ON" : "OFF"); 4213 4214 old_value = !!(old & I40E_L3_DST_MASK); 4215 new_value = !!(new & I40E_L3_DST_MASK); 4216 if (old_value != new_value) 4217 netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n", 4218 old_value ? "ON" : "OFF", 4219 new_value ? "ON" : "OFF"); 4220 4221 old_value = !!(old & I40E_L4_SRC_MASK); 4222 new_value = !!(new & I40E_L4_SRC_MASK); 4223 if (old_value != new_value) 4224 netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n", 4225 old_value ? "ON" : "OFF", 4226 new_value ? "ON" : "OFF"); 4227 4228 old_value = !!(old & I40E_L4_DST_MASK); 4229 new_value = !!(new & I40E_L4_DST_MASK); 4230 if (old_value != new_value) 4231 netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n", 4232 old_value ? "ON" : "OFF", 4233 new_value ? "ON" : "OFF"); 4234 4235 old_value = !!(old & I40E_VERIFY_TAG_MASK); 4236 new_value = !!(new & I40E_VERIFY_TAG_MASK); 4237 if (old_value != new_value) 4238 netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n", 4239 old_value ? "ON" : "OFF", 4240 new_value ? "ON" : "OFF"); 4241 4242 /* Show change of flexible filter entries */ 4243 for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) { 4244 u64 flex_mask = i40e_pit_index_to_mask(i); 4245 4246 old_value = !!(old & flex_mask); 4247 new_value = !!(new & flex_mask); 4248 if (old_value != new_value) 4249 netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n", 4250 i, 4251 old_value ? "ON" : "OFF", 4252 new_value ? "ON" : "OFF"); 4253 } 4254 4255 netif_info(pf, drv, vsi->netdev, " Current input set: %0llx\n", 4256 old); 4257 netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n", 4258 new); 4259 } 4260 4261 /** 4262 * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid 4263 * @vsi: pointer to the targeted VSI 4264 * @fsp: pointer to Rx flow specification 4265 * @userdef: userdefined data from flow specification 4266 * 4267 * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support 4268 * for partial matches exists with a few limitations. First, hardware only 4269 * supports masking by word boundary (2 bytes) and not per individual bit. 4270 * Second, hardware is limited to using one mask for a flow type and cannot 4271 * use a separate mask for each filter. 4272 * 4273 * To support these limitations, if we already have a configured filter for 4274 * the specified type, this function enforces that new filters of the type 4275 * match the configured input set. Otherwise, if we do not have a filter of 4276 * the specified type, we allow the input set to be updated to match the 4277 * desired filter. 4278 * 4279 * To help ensure that administrators understand why filters weren't displayed 4280 * as supported, we print a diagnostic message displaying how the input set 4281 * would change and warning to delete the preexisting filters if required. 4282 * 4283 * Returns 0 on successful input set match, and a negative return code on 4284 * failure. 4285 **/ 4286 static int i40e_check_fdir_input_set(struct i40e_vsi *vsi, 4287 struct ethtool_rx_flow_spec *fsp, 4288 struct i40e_rx_flow_userdef *userdef) 4289 { 4290 static const __be32 ipv6_full_mask[4] = {cpu_to_be32(0xffffffff), 4291 cpu_to_be32(0xffffffff), cpu_to_be32(0xffffffff), 4292 cpu_to_be32(0xffffffff)}; 4293 struct ethtool_tcpip6_spec *tcp_ip6_spec; 4294 struct ethtool_usrip6_spec *usr_ip6_spec; 4295 struct ethtool_tcpip4_spec *tcp_ip4_spec; 4296 struct ethtool_usrip4_spec *usr_ip4_spec; 4297 struct i40e_pf *pf = vsi->back; 4298 u64 current_mask, new_mask; 4299 bool new_flex_offset = false; 4300 bool flex_l3 = false; 4301 u16 *fdir_filter_count; 4302 u16 index, src_offset = 0; 4303 u8 pit_index = 0; 4304 int err; 4305 4306 switch (fsp->flow_type & ~FLOW_EXT) { 4307 case SCTP_V4_FLOW: 4308 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP; 4309 fdir_filter_count = &pf->fd_sctp4_filter_cnt; 4310 break; 4311 case TCP_V4_FLOW: 4312 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 4313 fdir_filter_count = &pf->fd_tcp4_filter_cnt; 4314 break; 4315 case UDP_V4_FLOW: 4316 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 4317 fdir_filter_count = &pf->fd_udp4_filter_cnt; 4318 break; 4319 case SCTP_V6_FLOW: 4320 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP; 4321 fdir_filter_count = &pf->fd_sctp6_filter_cnt; 4322 break; 4323 case TCP_V6_FLOW: 4324 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 4325 fdir_filter_count = &pf->fd_tcp6_filter_cnt; 4326 break; 4327 case UDP_V6_FLOW: 4328 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 4329 fdir_filter_count = &pf->fd_udp6_filter_cnt; 4330 break; 4331 case IP_USER_FLOW: 4332 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER; 4333 fdir_filter_count = &pf->fd_ip4_filter_cnt; 4334 flex_l3 = true; 4335 break; 4336 case IPV6_USER_FLOW: 4337 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER; 4338 fdir_filter_count = &pf->fd_ip6_filter_cnt; 4339 flex_l3 = true; 4340 break; 4341 default: 4342 return -EOPNOTSUPP; 4343 } 4344 4345 /* Read the current input set from register memory. */ 4346 current_mask = i40e_read_fd_input_set(pf, index); 4347 new_mask = current_mask; 4348 4349 /* Determine, if any, the required changes to the input set in order 4350 * to support the provided mask. 4351 * 4352 * Hardware only supports masking at word (2 byte) granularity and does 4353 * not support full bitwise masking. This implementation simplifies 4354 * even further and only supports fully enabled or fully disabled 4355 * masks for each field, even though we could split the ip4src and 4356 * ip4dst fields. 4357 */ 4358 switch (fsp->flow_type & ~FLOW_EXT) { 4359 case SCTP_V4_FLOW: 4360 new_mask &= ~I40E_VERIFY_TAG_MASK; 4361 fallthrough; 4362 case TCP_V4_FLOW: 4363 case UDP_V4_FLOW: 4364 tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec; 4365 4366 /* IPv4 source address */ 4367 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 4368 new_mask |= I40E_L3_SRC_MASK; 4369 else if (!tcp_ip4_spec->ip4src) 4370 new_mask &= ~I40E_L3_SRC_MASK; 4371 else 4372 return -EOPNOTSUPP; 4373 4374 /* IPv4 destination address */ 4375 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 4376 new_mask |= I40E_L3_DST_MASK; 4377 else if (!tcp_ip4_spec->ip4dst) 4378 new_mask &= ~I40E_L3_DST_MASK; 4379 else 4380 return -EOPNOTSUPP; 4381 4382 /* L4 source port */ 4383 if (tcp_ip4_spec->psrc == htons(0xFFFF)) 4384 new_mask |= I40E_L4_SRC_MASK; 4385 else if (!tcp_ip4_spec->psrc) 4386 new_mask &= ~I40E_L4_SRC_MASK; 4387 else 4388 return -EOPNOTSUPP; 4389 4390 /* L4 destination port */ 4391 if (tcp_ip4_spec->pdst == htons(0xFFFF)) 4392 new_mask |= I40E_L4_DST_MASK; 4393 else if (!tcp_ip4_spec->pdst) 4394 new_mask &= ~I40E_L4_DST_MASK; 4395 else 4396 return -EOPNOTSUPP; 4397 4398 /* Filtering on Type of Service is not supported. */ 4399 if (tcp_ip4_spec->tos) 4400 return -EOPNOTSUPP; 4401 4402 break; 4403 case SCTP_V6_FLOW: 4404 new_mask &= ~I40E_VERIFY_TAG_MASK; 4405 fallthrough; 4406 case TCP_V6_FLOW: 4407 case UDP_V6_FLOW: 4408 tcp_ip6_spec = &fsp->m_u.tcp_ip6_spec; 4409 4410 /* Check if user provided IPv6 source address. */ 4411 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6src, 4412 (struct in6_addr *)&ipv6_full_mask)) 4413 new_mask |= I40E_L3_V6_SRC_MASK; 4414 else if (ipv6_addr_any((struct in6_addr *) 4415 &tcp_ip6_spec->ip6src)) 4416 new_mask &= ~I40E_L3_V6_SRC_MASK; 4417 else 4418 return -EOPNOTSUPP; 4419 4420 /* Check if user provided destination address. */ 4421 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6dst, 4422 (struct in6_addr *)&ipv6_full_mask)) 4423 new_mask |= I40E_L3_V6_DST_MASK; 4424 else if (ipv6_addr_any((struct in6_addr *) 4425 &tcp_ip6_spec->ip6dst)) 4426 new_mask &= ~I40E_L3_V6_DST_MASK; 4427 else 4428 return -EOPNOTSUPP; 4429 4430 /* L4 source port */ 4431 if (tcp_ip6_spec->psrc == htons(0xFFFF)) 4432 new_mask |= I40E_L4_SRC_MASK; 4433 else if (!tcp_ip6_spec->psrc) 4434 new_mask &= ~I40E_L4_SRC_MASK; 4435 else 4436 return -EOPNOTSUPP; 4437 4438 /* L4 destination port */ 4439 if (tcp_ip6_spec->pdst == htons(0xFFFF)) 4440 new_mask |= I40E_L4_DST_MASK; 4441 else if (!tcp_ip6_spec->pdst) 4442 new_mask &= ~I40E_L4_DST_MASK; 4443 else 4444 return -EOPNOTSUPP; 4445 4446 /* Filtering on Traffic Classes is not supported. */ 4447 if (tcp_ip6_spec->tclass) 4448 return -EOPNOTSUPP; 4449 break; 4450 case IP_USER_FLOW: 4451 usr_ip4_spec = &fsp->m_u.usr_ip4_spec; 4452 4453 /* IPv4 source address */ 4454 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 4455 new_mask |= I40E_L3_SRC_MASK; 4456 else if (!usr_ip4_spec->ip4src) 4457 new_mask &= ~I40E_L3_SRC_MASK; 4458 else 4459 return -EOPNOTSUPP; 4460 4461 /* IPv4 destination address */ 4462 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 4463 new_mask |= I40E_L3_DST_MASK; 4464 else if (!usr_ip4_spec->ip4dst) 4465 new_mask &= ~I40E_L3_DST_MASK; 4466 else 4467 return -EOPNOTSUPP; 4468 4469 /* First 4 bytes of L4 header */ 4470 if (usr_ip4_spec->l4_4_bytes) 4471 return -EOPNOTSUPP; 4472 4473 /* Filtering on Type of Service is not supported. */ 4474 if (usr_ip4_spec->tos) 4475 return -EOPNOTSUPP; 4476 4477 /* Filtering on IP version is not supported */ 4478 if (usr_ip4_spec->ip_ver) 4479 return -EINVAL; 4480 4481 /* Filtering on L4 protocol is not supported */ 4482 if (usr_ip4_spec->proto) 4483 return -EINVAL; 4484 4485 break; 4486 case IPV6_USER_FLOW: 4487 usr_ip6_spec = &fsp->m_u.usr_ip6_spec; 4488 4489 /* Check if user provided IPv6 source address. */ 4490 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6src, 4491 (struct in6_addr *)&ipv6_full_mask)) 4492 new_mask |= I40E_L3_V6_SRC_MASK; 4493 else if (ipv6_addr_any((struct in6_addr *) 4494 &usr_ip6_spec->ip6src)) 4495 new_mask &= ~I40E_L3_V6_SRC_MASK; 4496 else 4497 return -EOPNOTSUPP; 4498 4499 /* Check if user provided destination address. */ 4500 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6dst, 4501 (struct in6_addr *)&ipv6_full_mask)) 4502 new_mask |= I40E_L3_V6_DST_MASK; 4503 else if (ipv6_addr_any((struct in6_addr *) 4504 &usr_ip6_spec->ip6dst)) 4505 new_mask &= ~I40E_L3_V6_DST_MASK; 4506 else 4507 return -EOPNOTSUPP; 4508 4509 if (usr_ip6_spec->l4_4_bytes) 4510 return -EOPNOTSUPP; 4511 4512 /* Filtering on Traffic class is not supported. */ 4513 if (usr_ip6_spec->tclass) 4514 return -EOPNOTSUPP; 4515 4516 /* Filtering on L4 protocol is not supported */ 4517 if (usr_ip6_spec->l4_proto) 4518 return -EINVAL; 4519 4520 break; 4521 default: 4522 return -EOPNOTSUPP; 4523 } 4524 4525 if (fsp->flow_type & FLOW_EXT) { 4526 /* Allow only 802.1Q and no etype defined, as 4527 * later it's modified to 0x8100 4528 */ 4529 if (fsp->h_ext.vlan_etype != htons(ETH_P_8021Q) && 4530 fsp->h_ext.vlan_etype != 0) 4531 return -EOPNOTSUPP; 4532 if (fsp->m_ext.vlan_tci == htons(0xFFFF)) 4533 new_mask |= I40E_VLAN_SRC_MASK; 4534 else 4535 new_mask &= ~I40E_VLAN_SRC_MASK; 4536 } 4537 4538 /* First, clear all flexible filter entries */ 4539 new_mask &= ~I40E_FLEX_INPUT_MASK; 4540 4541 /* If we have a flexible filter, try to add this offset to the correct 4542 * flexible filter PIT list. Once finished, we can update the mask. 4543 * If the src_offset changed, we will get a new mask value which will 4544 * trigger an input set change. 4545 */ 4546 if (userdef->flex_filter) { 4547 struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL; 4548 4549 /* Flexible offset must be even, since the flexible payload 4550 * must be aligned on 2-byte boundary. 4551 */ 4552 if (userdef->flex_offset & 0x1) { 4553 dev_warn(&pf->pdev->dev, 4554 "Flexible data offset must be 2-byte aligned\n"); 4555 return -EINVAL; 4556 } 4557 4558 src_offset = userdef->flex_offset >> 1; 4559 4560 /* FLX_PIT source offset value is only so large */ 4561 if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) { 4562 dev_warn(&pf->pdev->dev, 4563 "Flexible data must reside within first 64 bytes of the packet payload\n"); 4564 return -EINVAL; 4565 } 4566 4567 /* See if this offset has already been programmed. If we get 4568 * an ERR_PTR, then the filter is not safe to add. Otherwise, 4569 * if we get a NULL pointer, this means we will need to add 4570 * the offset. 4571 */ 4572 flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list, 4573 src_offset); 4574 if (IS_ERR(flex_pit)) 4575 return PTR_ERR(flex_pit); 4576 4577 /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown) 4578 * packet types, and thus we need to program both L3 and L4 4579 * flexible values. These must have identical flexible index, 4580 * as otherwise we can't correctly program the input set. So 4581 * we'll find both an L3 and L4 index and make sure they are 4582 * the same. 4583 */ 4584 if (flex_l3) { 4585 l3_flex_pit = 4586 i40e_find_flex_offset(&pf->l3_flex_pit_list, 4587 src_offset); 4588 if (IS_ERR(l3_flex_pit)) 4589 return PTR_ERR(l3_flex_pit); 4590 4591 if (flex_pit) { 4592 /* If we already had a matching L4 entry, we 4593 * need to make sure that the L3 entry we 4594 * obtained uses the same index. 4595 */ 4596 if (l3_flex_pit) { 4597 if (l3_flex_pit->pit_index != 4598 flex_pit->pit_index) { 4599 return -EINVAL; 4600 } 4601 } else { 4602 new_flex_offset = true; 4603 } 4604 } else { 4605 flex_pit = l3_flex_pit; 4606 } 4607 } 4608 4609 /* If we didn't find an existing flex offset, we need to 4610 * program a new one. However, we don't immediately program it 4611 * here because we will wait to program until after we check 4612 * that it is safe to change the input set. 4613 */ 4614 if (!flex_pit) { 4615 new_flex_offset = true; 4616 pit_index = i40e_unused_pit_index(pf); 4617 } else { 4618 pit_index = flex_pit->pit_index; 4619 } 4620 4621 /* Update the mask with the new offset */ 4622 new_mask |= i40e_pit_index_to_mask(pit_index); 4623 } 4624 4625 /* If the mask and flexible filter offsets for this filter match the 4626 * currently programmed values we don't need any input set change, so 4627 * this filter is safe to install. 4628 */ 4629 if (new_mask == current_mask && !new_flex_offset) 4630 return 0; 4631 4632 netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n", 4633 i40e_flow_str(fsp)); 4634 i40e_print_input_set(vsi, current_mask, new_mask); 4635 if (new_flex_offset) { 4636 netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d", 4637 pit_index, src_offset); 4638 } 4639 4640 /* Hardware input sets are global across multiple ports, so even the 4641 * main port cannot change them when in MFP mode as this would impact 4642 * any filters on the other ports. 4643 */ 4644 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 4645 netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n"); 4646 return -EOPNOTSUPP; 4647 } 4648 4649 /* This filter requires us to update the input set. However, hardware 4650 * only supports one input set per flow type, and does not support 4651 * separate masks for each filter. This means that we can only support 4652 * a single mask for all filters of a specific type. 4653 * 4654 * If we have preexisting filters, they obviously depend on the 4655 * current programmed input set. Display a diagnostic message in this 4656 * case explaining why the filter could not be accepted. 4657 */ 4658 if (*fdir_filter_count) { 4659 netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n", 4660 i40e_flow_str(fsp), 4661 *fdir_filter_count); 4662 return -EOPNOTSUPP; 4663 } 4664 4665 i40e_write_fd_input_set(pf, index, new_mask); 4666 4667 /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented 4668 * frames. If we're programming the input set for IPv4/Other, we also 4669 * need to program the IPv4/Fragmented input set. Since we don't have 4670 * separate support, we'll always assume and enforce that the two flow 4671 * types must have matching input sets. 4672 */ 4673 if (index == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) 4674 i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4, 4675 new_mask); 4676 4677 /* Add the new offset and update table, if necessary */ 4678 if (new_flex_offset) { 4679 err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset, 4680 pit_index); 4681 if (err) 4682 return err; 4683 4684 if (flex_l3) { 4685 err = i40e_add_flex_offset(&pf->l3_flex_pit_list, 4686 src_offset, 4687 pit_index); 4688 if (err) 4689 return err; 4690 } 4691 4692 i40e_reprogram_flex_pit(pf); 4693 } 4694 4695 return 0; 4696 } 4697 4698 /** 4699 * i40e_match_fdir_filter - Return true of two filters match 4700 * @a: pointer to filter struct 4701 * @b: pointer to filter struct 4702 * 4703 * Returns true if the two filters match exactly the same criteria. I.e. they 4704 * match the same flow type and have the same parameters. We don't need to 4705 * check any input-set since all filters of the same flow type must use the 4706 * same input set. 4707 **/ 4708 static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a, 4709 struct i40e_fdir_filter *b) 4710 { 4711 /* The filters do not much if any of these criteria differ. */ 4712 if (a->dst_ip != b->dst_ip || 4713 a->src_ip != b->src_ip || 4714 a->dst_port != b->dst_port || 4715 a->src_port != b->src_port || 4716 a->flow_type != b->flow_type || 4717 a->ipl4_proto != b->ipl4_proto || 4718 a->vlan_tag != b->vlan_tag || 4719 a->vlan_etype != b->vlan_etype) 4720 return false; 4721 4722 return true; 4723 } 4724 4725 /** 4726 * i40e_disallow_matching_filters - Check that new filters differ 4727 * @vsi: pointer to the targeted VSI 4728 * @input: new filter to check 4729 * 4730 * Due to hardware limitations, it is not possible for two filters that match 4731 * similar criteria to be programmed at the same time. This is true for a few 4732 * reasons: 4733 * 4734 * (a) all filters matching a particular flow type must use the same input 4735 * set, that is they must match the same criteria. 4736 * (b) different flow types will never match the same packet, as the flow type 4737 * is decided by hardware before checking which rules apply. 4738 * (c) hardware has no way to distinguish which order filters apply in. 4739 * 4740 * Due to this, we can't really support using the location data to order 4741 * filters in the hardware parsing. It is technically possible for the user to 4742 * request two filters matching the same criteria but which select different 4743 * queues. In this case, rather than keep both filters in the list, we reject 4744 * the 2nd filter when the user requests adding it. 4745 * 4746 * This avoids needing to track location for programming the filter to 4747 * hardware, and ensures that we avoid some strange scenarios involving 4748 * deleting filters which match the same criteria. 4749 **/ 4750 static int i40e_disallow_matching_filters(struct i40e_vsi *vsi, 4751 struct i40e_fdir_filter *input) 4752 { 4753 struct i40e_pf *pf = vsi->back; 4754 struct i40e_fdir_filter *rule; 4755 struct hlist_node *node2; 4756 4757 /* Loop through every filter, and check that it doesn't match */ 4758 hlist_for_each_entry_safe(rule, node2, 4759 &pf->fdir_filter_list, fdir_node) { 4760 /* Don't check the filters match if they share the same fd_id, 4761 * since the new filter is actually just updating the target 4762 * of the old filter. 4763 */ 4764 if (rule->fd_id == input->fd_id) 4765 continue; 4766 4767 /* If any filters match, then print a warning message to the 4768 * kernel message buffer and bail out. 4769 */ 4770 if (i40e_match_fdir_filter(rule, input)) { 4771 dev_warn(&pf->pdev->dev, 4772 "Existing user defined filter %d already matches this flow.\n", 4773 rule->fd_id); 4774 return -EINVAL; 4775 } 4776 } 4777 4778 return 0; 4779 } 4780 4781 /** 4782 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters 4783 * @vsi: pointer to the targeted VSI 4784 * @cmd: command to get or set RX flow classification rules 4785 * 4786 * Add Flow Director filters for a specific flow spec based on their 4787 * protocol. Returns 0 if the filters were successfully added. 4788 **/ 4789 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi, 4790 struct ethtool_rxnfc *cmd) 4791 { 4792 struct i40e_rx_flow_userdef userdef; 4793 struct ethtool_rx_flow_spec *fsp; 4794 struct i40e_fdir_filter *input; 4795 u16 dest_vsi = 0, q_index = 0; 4796 struct i40e_pf *pf; 4797 int ret = -EINVAL; 4798 u8 dest_ctl; 4799 4800 if (!vsi) 4801 return -EINVAL; 4802 pf = vsi->back; 4803 4804 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED)) 4805 return -EOPNOTSUPP; 4806 4807 if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state)) 4808 return -ENOSPC; 4809 4810 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 4811 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 4812 return -EBUSY; 4813 4814 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 4815 return -EBUSY; 4816 4817 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs; 4818 4819 /* Parse the user-defined field */ 4820 if (i40e_parse_rx_flow_user_data(fsp, &userdef)) 4821 return -EINVAL; 4822 4823 /* Extended MAC field is not supported */ 4824 if (fsp->flow_type & FLOW_MAC_EXT) 4825 return -EINVAL; 4826 4827 ret = i40e_check_fdir_input_set(vsi, fsp, &userdef); 4828 if (ret) 4829 return ret; 4830 4831 if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort + 4832 pf->hw.func_caps.fd_filters_guaranteed)) { 4833 return -EINVAL; 4834 } 4835 4836 /* ring_cookie is either the drop index, or is a mask of the queue 4837 * index and VF id we wish to target. 4838 */ 4839 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) { 4840 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 4841 } else { 4842 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie); 4843 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie); 4844 4845 if (!vf) { 4846 if (ring >= vsi->num_queue_pairs) 4847 return -EINVAL; 4848 dest_vsi = vsi->id; 4849 } else { 4850 /* VFs are zero-indexed, so we subtract one here */ 4851 vf--; 4852 4853 if (vf >= pf->num_alloc_vfs) 4854 return -EINVAL; 4855 if (ring >= pf->vf[vf].num_queue_pairs) 4856 return -EINVAL; 4857 dest_vsi = pf->vf[vf].lan_vsi_id; 4858 } 4859 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX; 4860 q_index = ring; 4861 } 4862 4863 input = kzalloc(sizeof(*input), GFP_KERNEL); 4864 4865 if (!input) 4866 return -ENOMEM; 4867 4868 input->fd_id = fsp->location; 4869 input->q_index = q_index; 4870 input->dest_vsi = dest_vsi; 4871 input->dest_ctl = dest_ctl; 4872 input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID; 4873 input->cnt_index = I40E_FD_SB_STAT_IDX(pf->hw.pf_id); 4874 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4875 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4876 input->flow_type = fsp->flow_type & ~FLOW_EXT; 4877 4878 input->vlan_etype = fsp->h_ext.vlan_etype; 4879 if (!fsp->m_ext.vlan_etype && fsp->h_ext.vlan_tci) 4880 input->vlan_etype = cpu_to_be16(ETH_P_8021Q); 4881 if (fsp->m_ext.vlan_tci && input->vlan_etype) 4882 input->vlan_tag = fsp->h_ext.vlan_tci; 4883 if (input->flow_type == IPV6_USER_FLOW || 4884 input->flow_type == UDP_V6_FLOW || 4885 input->flow_type == TCP_V6_FLOW || 4886 input->flow_type == SCTP_V6_FLOW) { 4887 /* Reverse the src and dest notion, since the HW expects them 4888 * to be from Tx perspective where as the input from user is 4889 * from Rx filter view. 4890 */ 4891 input->ipl4_proto = fsp->h_u.usr_ip6_spec.l4_proto; 4892 input->dst_port = fsp->h_u.tcp_ip6_spec.psrc; 4893 input->src_port = fsp->h_u.tcp_ip6_spec.pdst; 4894 memcpy(input->dst_ip6, fsp->h_u.ah_ip6_spec.ip6src, 4895 sizeof(__be32) * 4); 4896 memcpy(input->src_ip6, fsp->h_u.ah_ip6_spec.ip6dst, 4897 sizeof(__be32) * 4); 4898 } else { 4899 /* Reverse the src and dest notion, since the HW expects them 4900 * to be from Tx perspective where as the input from user is 4901 * from Rx filter view. 4902 */ 4903 input->ipl4_proto = fsp->h_u.usr_ip4_spec.proto; 4904 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc; 4905 input->src_port = fsp->h_u.tcp_ip4_spec.pdst; 4906 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4907 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4908 } 4909 4910 if (userdef.flex_filter) { 4911 input->flex_filter = true; 4912 input->flex_word = cpu_to_be16(userdef.flex_word); 4913 input->flex_offset = userdef.flex_offset; 4914 } 4915 4916 /* Avoid programming two filters with identical match criteria. */ 4917 ret = i40e_disallow_matching_filters(vsi, input); 4918 if (ret) 4919 goto free_filter_memory; 4920 4921 /* Add the input filter to the fdir_input_list, possibly replacing 4922 * a previous filter. Do not free the input structure after adding it 4923 * to the list as this would cause a use-after-free bug. 4924 */ 4925 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL); 4926 ret = i40e_add_del_fdir(vsi, input, true); 4927 if (ret) 4928 goto remove_sw_rule; 4929 return 0; 4930 4931 remove_sw_rule: 4932 hlist_del(&input->fdir_node); 4933 pf->fdir_pf_active_filters--; 4934 free_filter_memory: 4935 kfree(input); 4936 return ret; 4937 } 4938 4939 /** 4940 * i40e_set_rxnfc - command to set RX flow classification rules 4941 * @netdev: network interface device structure 4942 * @cmd: ethtool rxnfc command 4943 * 4944 * Returns Success if the command is supported. 4945 **/ 4946 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd) 4947 { 4948 struct i40e_netdev_priv *np = netdev_priv(netdev); 4949 struct i40e_vsi *vsi = np->vsi; 4950 struct i40e_pf *pf = vsi->back; 4951 int ret = -EOPNOTSUPP; 4952 4953 switch (cmd->cmd) { 4954 case ETHTOOL_SRXFH: 4955 ret = i40e_set_rss_hash_opt(pf, cmd); 4956 break; 4957 case ETHTOOL_SRXCLSRLINS: 4958 ret = i40e_add_fdir_ethtool(vsi, cmd); 4959 break; 4960 case ETHTOOL_SRXCLSRLDEL: 4961 ret = i40e_del_fdir_entry(vsi, cmd); 4962 break; 4963 default: 4964 break; 4965 } 4966 4967 return ret; 4968 } 4969 4970 /** 4971 * i40e_max_channels - get Max number of combined channels supported 4972 * @vsi: vsi pointer 4973 **/ 4974 static unsigned int i40e_max_channels(struct i40e_vsi *vsi) 4975 { 4976 /* TODO: This code assumes DCB and FD is disabled for now. */ 4977 return vsi->alloc_queue_pairs; 4978 } 4979 4980 /** 4981 * i40e_get_channels - Get the current channels enabled and max supported etc. 4982 * @dev: network interface device structure 4983 * @ch: ethtool channels structure 4984 * 4985 * We don't support separate tx and rx queues as channels. The other count 4986 * represents how many queues are being used for control. max_combined counts 4987 * how many queue pairs we can support. They may not be mapped 1 to 1 with 4988 * q_vectors since we support a lot more queue pairs than q_vectors. 4989 **/ 4990 static void i40e_get_channels(struct net_device *dev, 4991 struct ethtool_channels *ch) 4992 { 4993 struct i40e_netdev_priv *np = netdev_priv(dev); 4994 struct i40e_vsi *vsi = np->vsi; 4995 struct i40e_pf *pf = vsi->back; 4996 4997 /* report maximum channels */ 4998 ch->max_combined = i40e_max_channels(vsi); 4999 5000 /* report info for other vector */ 5001 ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0; 5002 ch->max_other = ch->other_count; 5003 5004 /* Note: This code assumes DCB is disabled for now. */ 5005 ch->combined_count = vsi->num_queue_pairs; 5006 } 5007 5008 /** 5009 * i40e_set_channels - Set the new channels count. 5010 * @dev: network interface device structure 5011 * @ch: ethtool channels structure 5012 * 5013 * The new channels count may not be the same as requested by the user 5014 * since it gets rounded down to a power of 2 value. 5015 **/ 5016 static int i40e_set_channels(struct net_device *dev, 5017 struct ethtool_channels *ch) 5018 { 5019 const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 5020 struct i40e_netdev_priv *np = netdev_priv(dev); 5021 unsigned int count = ch->combined_count; 5022 struct i40e_vsi *vsi = np->vsi; 5023 struct i40e_pf *pf = vsi->back; 5024 struct i40e_fdir_filter *rule; 5025 struct hlist_node *node2; 5026 int new_count; 5027 int err = 0; 5028 5029 /* We do not support setting channels for any other VSI at present */ 5030 if (vsi->type != I40E_VSI_MAIN) 5031 return -EINVAL; 5032 5033 /* We do not support setting channels via ethtool when TCs are 5034 * configured through mqprio 5035 */ 5036 if (i40e_is_tc_mqprio_enabled(pf)) 5037 return -EINVAL; 5038 5039 /* verify they are not requesting separate vectors */ 5040 if (!count || ch->rx_count || ch->tx_count) 5041 return -EINVAL; 5042 5043 /* verify other_count has not changed */ 5044 if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0)) 5045 return -EINVAL; 5046 5047 /* verify the number of channels does not exceed hardware limits */ 5048 if (count > i40e_max_channels(vsi)) 5049 return -EINVAL; 5050 5051 /* verify that the number of channels does not invalidate any current 5052 * flow director rules 5053 */ 5054 hlist_for_each_entry_safe(rule, node2, 5055 &pf->fdir_filter_list, fdir_node) { 5056 if (rule->dest_ctl != drop && count <= rule->q_index) { 5057 dev_warn(&pf->pdev->dev, 5058 "Existing user defined filter %d assigns flow to queue %d\n", 5059 rule->fd_id, rule->q_index); 5060 err = -EINVAL; 5061 } 5062 } 5063 5064 if (err) { 5065 dev_err(&pf->pdev->dev, 5066 "Existing filter rules must be deleted to reduce combined channel count to %d\n", 5067 count); 5068 return err; 5069 } 5070 5071 /* update feature limits from largest to smallest supported values */ 5072 /* TODO: Flow director limit, DCB etc */ 5073 5074 /* use rss_reconfig to rebuild with new queue count and update traffic 5075 * class queue mapping 5076 */ 5077 new_count = i40e_reconfig_rss_queues(pf, count); 5078 if (new_count > 0) 5079 return 0; 5080 else 5081 return -EINVAL; 5082 } 5083 5084 /** 5085 * i40e_get_rxfh_key_size - get the RSS hash key size 5086 * @netdev: network interface device structure 5087 * 5088 * Returns the table size. 5089 **/ 5090 static u32 i40e_get_rxfh_key_size(struct net_device *netdev) 5091 { 5092 return I40E_HKEY_ARRAY_SIZE; 5093 } 5094 5095 /** 5096 * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size 5097 * @netdev: network interface device structure 5098 * 5099 * Returns the table size. 5100 **/ 5101 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev) 5102 { 5103 return I40E_HLUT_ARRAY_SIZE; 5104 } 5105 5106 /** 5107 * i40e_get_rxfh - get the rx flow hash indirection table 5108 * @netdev: network interface device structure 5109 * @indir: indirection table 5110 * @key: hash key 5111 * @hfunc: hash function 5112 * 5113 * Reads the indirection table directly from the hardware. Returns 0 on 5114 * success. 5115 **/ 5116 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 5117 u8 *hfunc) 5118 { 5119 struct i40e_netdev_priv *np = netdev_priv(netdev); 5120 struct i40e_vsi *vsi = np->vsi; 5121 u8 *lut, *seed = NULL; 5122 int ret; 5123 u16 i; 5124 5125 if (hfunc) 5126 *hfunc = ETH_RSS_HASH_TOP; 5127 5128 if (!indir) 5129 return 0; 5130 5131 seed = key; 5132 lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 5133 if (!lut) 5134 return -ENOMEM; 5135 ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE); 5136 if (ret) 5137 goto out; 5138 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 5139 indir[i] = (u32)(lut[i]); 5140 5141 out: 5142 kfree(lut); 5143 5144 return ret; 5145 } 5146 5147 /** 5148 * i40e_set_rxfh - set the rx flow hash indirection table 5149 * @netdev: network interface device structure 5150 * @indir: indirection table 5151 * @key: hash key 5152 * @hfunc: hash function to use 5153 * 5154 * Returns -EINVAL if the table specifies an invalid queue id, otherwise 5155 * returns 0 after programming the table. 5156 **/ 5157 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir, 5158 const u8 *key, const u8 hfunc) 5159 { 5160 struct i40e_netdev_priv *np = netdev_priv(netdev); 5161 struct i40e_vsi *vsi = np->vsi; 5162 struct i40e_pf *pf = vsi->back; 5163 u8 *seed = NULL; 5164 u16 i; 5165 5166 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) 5167 return -EOPNOTSUPP; 5168 5169 if (key) { 5170 if (!vsi->rss_hkey_user) { 5171 vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE, 5172 GFP_KERNEL); 5173 if (!vsi->rss_hkey_user) 5174 return -ENOMEM; 5175 } 5176 memcpy(vsi->rss_hkey_user, key, I40E_HKEY_ARRAY_SIZE); 5177 seed = vsi->rss_hkey_user; 5178 } 5179 if (!vsi->rss_lut_user) { 5180 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 5181 if (!vsi->rss_lut_user) 5182 return -ENOMEM; 5183 } 5184 5185 /* Each 32 bits pointed by 'indir' is stored with a lut entry */ 5186 if (indir) 5187 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 5188 vsi->rss_lut_user[i] = (u8)(indir[i]); 5189 else 5190 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE, 5191 vsi->rss_size); 5192 5193 return i40e_config_rss(vsi, seed, vsi->rss_lut_user, 5194 I40E_HLUT_ARRAY_SIZE); 5195 } 5196 5197 /** 5198 * i40e_get_priv_flags - report device private flags 5199 * @dev: network interface device structure 5200 * 5201 * The get string set count and the string set should be matched for each 5202 * flag returned. Add new strings for each flag to the i40e_gstrings_priv_flags 5203 * array. 5204 * 5205 * Returns a u32 bitmap of flags. 5206 **/ 5207 static u32 i40e_get_priv_flags(struct net_device *dev) 5208 { 5209 struct i40e_netdev_priv *np = netdev_priv(dev); 5210 struct i40e_vsi *vsi = np->vsi; 5211 struct i40e_pf *pf = vsi->back; 5212 u32 i, j, ret_flags = 0; 5213 5214 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 5215 const struct i40e_priv_flags *priv_flags; 5216 5217 priv_flags = &i40e_gstrings_priv_flags[i]; 5218 5219 if (priv_flags->flag & pf->flags) 5220 ret_flags |= BIT(i); 5221 } 5222 5223 if (pf->hw.pf_id != 0) 5224 return ret_flags; 5225 5226 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 5227 const struct i40e_priv_flags *priv_flags; 5228 5229 priv_flags = &i40e_gl_gstrings_priv_flags[j]; 5230 5231 if (priv_flags->flag & pf->flags) 5232 ret_flags |= BIT(i + j); 5233 } 5234 5235 return ret_flags; 5236 } 5237 5238 /** 5239 * i40e_set_priv_flags - set private flags 5240 * @dev: network interface device structure 5241 * @flags: bit flags to be set 5242 **/ 5243 static int i40e_set_priv_flags(struct net_device *dev, u32 flags) 5244 { 5245 struct i40e_netdev_priv *np = netdev_priv(dev); 5246 u64 orig_flags, new_flags, changed_flags; 5247 enum i40e_admin_queue_err adq_err; 5248 struct i40e_vsi *vsi = np->vsi; 5249 struct i40e_pf *pf = vsi->back; 5250 u32 reset_needed = 0; 5251 int status; 5252 u32 i, j; 5253 5254 orig_flags = READ_ONCE(pf->flags); 5255 new_flags = orig_flags; 5256 5257 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 5258 const struct i40e_priv_flags *priv_flags; 5259 5260 priv_flags = &i40e_gstrings_priv_flags[i]; 5261 5262 if (flags & BIT(i)) 5263 new_flags |= priv_flags->flag; 5264 else 5265 new_flags &= ~(priv_flags->flag); 5266 5267 /* If this is a read-only flag, it can't be changed */ 5268 if (priv_flags->read_only && 5269 ((orig_flags ^ new_flags) & ~BIT(i))) 5270 return -EOPNOTSUPP; 5271 } 5272 5273 if (pf->hw.pf_id != 0) 5274 goto flags_complete; 5275 5276 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 5277 const struct i40e_priv_flags *priv_flags; 5278 5279 priv_flags = &i40e_gl_gstrings_priv_flags[j]; 5280 5281 if (flags & BIT(i + j)) 5282 new_flags |= priv_flags->flag; 5283 else 5284 new_flags &= ~(priv_flags->flag); 5285 5286 /* If this is a read-only flag, it can't be changed */ 5287 if (priv_flags->read_only && 5288 ((orig_flags ^ new_flags) & ~BIT(i))) 5289 return -EOPNOTSUPP; 5290 } 5291 5292 flags_complete: 5293 changed_flags = orig_flags ^ new_flags; 5294 5295 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) 5296 reset_needed = I40E_PF_RESET_AND_REBUILD_FLAG; 5297 if (changed_flags & (I40E_FLAG_VEB_STATS_ENABLED | 5298 I40E_FLAG_LEGACY_RX | I40E_FLAG_SOURCE_PRUNING_DISABLED)) 5299 reset_needed = BIT(__I40E_PF_RESET_REQUESTED); 5300 5301 /* Before we finalize any flag changes, we need to perform some 5302 * checks to ensure that the changes are supported and safe. 5303 */ 5304 5305 /* ATR eviction is not supported on all devices */ 5306 if ((new_flags & I40E_FLAG_HW_ATR_EVICT_ENABLED) && 5307 !(pf->hw_features & I40E_HW_ATR_EVICT_CAPABLE)) 5308 return -EOPNOTSUPP; 5309 5310 /* If the driver detected FW LLDP was disabled on init, this flag could 5311 * be set, however we do not support _changing_ the flag: 5312 * - on XL710 if NPAR is enabled or FW API version < 1.7 5313 * - on X722 with FW API version < 1.6 5314 * There are situations where older FW versions/NPAR enabled PFs could 5315 * disable LLDP, however we _must_ not allow the user to enable/disable 5316 * LLDP with this flag on unsupported FW versions. 5317 */ 5318 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) { 5319 if (!(pf->hw.flags & I40E_HW_FLAG_FW_LLDP_STOPPABLE)) { 5320 dev_warn(&pf->pdev->dev, 5321 "Device does not support changing FW LLDP\n"); 5322 return -EOPNOTSUPP; 5323 } 5324 } 5325 5326 if (changed_flags & I40E_FLAG_RS_FEC && 5327 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && 5328 pf->hw.device_id != I40E_DEV_ID_25G_B) { 5329 dev_warn(&pf->pdev->dev, 5330 "Device does not support changing FEC configuration\n"); 5331 return -EOPNOTSUPP; 5332 } 5333 5334 if (changed_flags & I40E_FLAG_BASE_R_FEC && 5335 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && 5336 pf->hw.device_id != I40E_DEV_ID_25G_B && 5337 pf->hw.device_id != I40E_DEV_ID_KX_X722) { 5338 dev_warn(&pf->pdev->dev, 5339 "Device does not support changing FEC configuration\n"); 5340 return -EOPNOTSUPP; 5341 } 5342 5343 /* Process any additional changes needed as a result of flag changes. 5344 * The changed_flags value reflects the list of bits that were 5345 * changed in the code above. 5346 */ 5347 5348 /* Flush current ATR settings if ATR was disabled */ 5349 if ((changed_flags & I40E_FLAG_FD_ATR_ENABLED) && 5350 !(new_flags & I40E_FLAG_FD_ATR_ENABLED)) { 5351 set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state); 5352 set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state); 5353 } 5354 5355 if (changed_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT) { 5356 u16 sw_flags = 0, valid_flags = 0; 5357 int ret; 5358 5359 if (!(new_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT)) 5360 sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 5361 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 5362 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags, 5363 0, NULL); 5364 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) { 5365 dev_info(&pf->pdev->dev, 5366 "couldn't set switch config bits, err %pe aq_err %s\n", 5367 ERR_PTR(ret), 5368 i40e_aq_str(&pf->hw, 5369 pf->hw.aq.asq_last_status)); 5370 /* not a fatal problem, just keep going */ 5371 } 5372 } 5373 5374 if ((changed_flags & I40E_FLAG_RS_FEC) || 5375 (changed_flags & I40E_FLAG_BASE_R_FEC)) { 5376 u8 fec_cfg = 0; 5377 5378 if (new_flags & I40E_FLAG_RS_FEC && 5379 new_flags & I40E_FLAG_BASE_R_FEC) { 5380 fec_cfg = I40E_AQ_SET_FEC_AUTO; 5381 } else if (new_flags & I40E_FLAG_RS_FEC) { 5382 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS | 5383 I40E_AQ_SET_FEC_ABILITY_RS); 5384 } else if (new_flags & I40E_FLAG_BASE_R_FEC) { 5385 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR | 5386 I40E_AQ_SET_FEC_ABILITY_KR); 5387 } 5388 if (i40e_set_fec_cfg(dev, fec_cfg)) 5389 dev_warn(&pf->pdev->dev, "Cannot change FEC config\n"); 5390 } 5391 5392 if ((changed_flags & I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) && 5393 (orig_flags & I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED)) { 5394 dev_err(&pf->pdev->dev, 5395 "Setting link-down-on-close not supported on this port (because total-port-shutdown is enabled)\n"); 5396 return -EOPNOTSUPP; 5397 } 5398 5399 if ((changed_flags & I40E_FLAG_VF_VLAN_PRUNING) && 5400 pf->num_alloc_vfs) { 5401 dev_warn(&pf->pdev->dev, 5402 "Changing vf-vlan-pruning flag while VF(s) are active is not supported\n"); 5403 return -EOPNOTSUPP; 5404 } 5405 5406 if ((changed_flags & I40E_FLAG_LEGACY_RX) && 5407 I40E_2K_TOO_SMALL_WITH_PADDING) { 5408 dev_warn(&pf->pdev->dev, 5409 "2k Rx buffer is too small to fit standard MTU and skb_shared_info\n"); 5410 return -EOPNOTSUPP; 5411 } 5412 5413 if ((changed_flags & new_flags & 5414 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) && 5415 (new_flags & I40E_FLAG_MFP_ENABLED)) 5416 dev_warn(&pf->pdev->dev, 5417 "Turning on link-down-on-close flag may affect other partitions\n"); 5418 5419 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) { 5420 if (new_flags & I40E_FLAG_DISABLE_FW_LLDP) { 5421 #ifdef CONFIG_I40E_DCB 5422 i40e_dcb_sw_default_config(pf); 5423 #endif /* CONFIG_I40E_DCB */ 5424 i40e_aq_cfg_lldp_mib_change_event(&pf->hw, false, NULL); 5425 i40e_aq_stop_lldp(&pf->hw, true, false, NULL); 5426 } else { 5427 status = i40e_aq_start_lldp(&pf->hw, false, NULL); 5428 if (status) { 5429 adq_err = pf->hw.aq.asq_last_status; 5430 switch (adq_err) { 5431 case I40E_AQ_RC_EEXIST: 5432 dev_warn(&pf->pdev->dev, 5433 "FW LLDP agent is already running\n"); 5434 reset_needed = 0; 5435 break; 5436 case I40E_AQ_RC_EPERM: 5437 dev_warn(&pf->pdev->dev, 5438 "Device configuration forbids SW from starting the LLDP agent.\n"); 5439 return -EINVAL; 5440 case I40E_AQ_RC_EAGAIN: 5441 dev_warn(&pf->pdev->dev, 5442 "Stop FW LLDP agent command is still being processed, please try again in a second.\n"); 5443 return -EBUSY; 5444 default: 5445 dev_warn(&pf->pdev->dev, 5446 "Starting FW LLDP agent failed: error: %pe, %s\n", 5447 ERR_PTR(status), 5448 i40e_aq_str(&pf->hw, 5449 adq_err)); 5450 return -EINVAL; 5451 } 5452 } 5453 } 5454 } 5455 5456 /* Now that we've checked to ensure that the new flags are valid, load 5457 * them into place. Since we only modify flags either (a) during 5458 * initialization or (b) while holding the RTNL lock, we don't need 5459 * anything fancy here. 5460 */ 5461 pf->flags = new_flags; 5462 5463 /* Issue reset to cause things to take effect, as additional bits 5464 * are added we will need to create a mask of bits requiring reset 5465 */ 5466 if (reset_needed) 5467 i40e_do_reset(pf, reset_needed, true); 5468 5469 return 0; 5470 } 5471 5472 /** 5473 * i40e_get_module_info - get (Q)SFP+ module type info 5474 * @netdev: network interface device structure 5475 * @modinfo: module EEPROM size and layout information structure 5476 **/ 5477 static int i40e_get_module_info(struct net_device *netdev, 5478 struct ethtool_modinfo *modinfo) 5479 { 5480 struct i40e_netdev_priv *np = netdev_priv(netdev); 5481 struct i40e_vsi *vsi = np->vsi; 5482 struct i40e_pf *pf = vsi->back; 5483 struct i40e_hw *hw = &pf->hw; 5484 u32 sff8472_comp = 0; 5485 u32 sff8472_swap = 0; 5486 u32 sff8636_rev = 0; 5487 u32 type = 0; 5488 int status; 5489 5490 /* Check if firmware supports reading module EEPROM. */ 5491 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) { 5492 netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n"); 5493 return -EINVAL; 5494 } 5495 5496 status = i40e_update_link_info(hw); 5497 if (status) 5498 return -EIO; 5499 5500 if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) { 5501 netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n"); 5502 return -EINVAL; 5503 } 5504 5505 type = hw->phy.link_info.module_type[0]; 5506 5507 switch (type) { 5508 case I40E_MODULE_TYPE_SFP: 5509 status = i40e_aq_get_phy_register(hw, 5510 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5511 I40E_I2C_EEPROM_DEV_ADDR, true, 5512 I40E_MODULE_SFF_8472_COMP, 5513 &sff8472_comp, NULL); 5514 if (status) 5515 return -EIO; 5516 5517 status = i40e_aq_get_phy_register(hw, 5518 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5519 I40E_I2C_EEPROM_DEV_ADDR, true, 5520 I40E_MODULE_SFF_8472_SWAP, 5521 &sff8472_swap, NULL); 5522 if (status) 5523 return -EIO; 5524 5525 /* Check if the module requires address swap to access 5526 * the other EEPROM memory page. 5527 */ 5528 if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) { 5529 netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n"); 5530 modinfo->type = ETH_MODULE_SFF_8079; 5531 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5532 } else if (sff8472_comp == 0x00) { 5533 /* Module is not SFF-8472 compliant */ 5534 modinfo->type = ETH_MODULE_SFF_8079; 5535 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5536 } else if (!(sff8472_swap & I40E_MODULE_SFF_DDM_IMPLEMENTED)) { 5537 /* Module is SFF-8472 compliant but doesn't implement 5538 * Digital Diagnostic Monitoring (DDM). 5539 */ 5540 modinfo->type = ETH_MODULE_SFF_8079; 5541 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5542 } else { 5543 modinfo->type = ETH_MODULE_SFF_8472; 5544 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; 5545 } 5546 break; 5547 case I40E_MODULE_TYPE_QSFP_PLUS: 5548 /* Read from memory page 0. */ 5549 status = i40e_aq_get_phy_register(hw, 5550 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5551 0, true, 5552 I40E_MODULE_REVISION_ADDR, 5553 &sff8636_rev, NULL); 5554 if (status) 5555 return -EIO; 5556 /* Determine revision compliance byte */ 5557 if (sff8636_rev > 0x02) { 5558 /* Module is SFF-8636 compliant */ 5559 modinfo->type = ETH_MODULE_SFF_8636; 5560 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5561 } else { 5562 modinfo->type = ETH_MODULE_SFF_8436; 5563 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5564 } 5565 break; 5566 case I40E_MODULE_TYPE_QSFP28: 5567 modinfo->type = ETH_MODULE_SFF_8636; 5568 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5569 break; 5570 default: 5571 netdev_err(vsi->netdev, "Module type unrecognized\n"); 5572 return -EINVAL; 5573 } 5574 return 0; 5575 } 5576 5577 /** 5578 * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents 5579 * @netdev: network interface device structure 5580 * @ee: EEPROM dump request structure 5581 * @data: buffer to be filled with EEPROM contents 5582 **/ 5583 static int i40e_get_module_eeprom(struct net_device *netdev, 5584 struct ethtool_eeprom *ee, 5585 u8 *data) 5586 { 5587 struct i40e_netdev_priv *np = netdev_priv(netdev); 5588 struct i40e_vsi *vsi = np->vsi; 5589 struct i40e_pf *pf = vsi->back; 5590 struct i40e_hw *hw = &pf->hw; 5591 bool is_sfp = false; 5592 u32 value = 0; 5593 int status; 5594 int i; 5595 5596 if (!ee || !ee->len || !data) 5597 return -EINVAL; 5598 5599 if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP) 5600 is_sfp = true; 5601 5602 for (i = 0; i < ee->len; i++) { 5603 u32 offset = i + ee->offset; 5604 u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0; 5605 5606 /* Check if we need to access the other memory page */ 5607 if (is_sfp) { 5608 if (offset >= ETH_MODULE_SFF_8079_LEN) { 5609 offset -= ETH_MODULE_SFF_8079_LEN; 5610 addr = I40E_I2C_EEPROM_DEV_ADDR2; 5611 } 5612 } else { 5613 while (offset >= ETH_MODULE_SFF_8436_LEN) { 5614 /* Compute memory page number and offset. */ 5615 offset -= ETH_MODULE_SFF_8436_LEN / 2; 5616 addr++; 5617 } 5618 } 5619 5620 status = i40e_aq_get_phy_register(hw, 5621 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5622 addr, true, offset, &value, NULL); 5623 if (status) 5624 return -EIO; 5625 data[i] = value; 5626 } 5627 return 0; 5628 } 5629 5630 static int i40e_get_eee(struct net_device *netdev, struct ethtool_eee *edata) 5631 { 5632 struct i40e_netdev_priv *np = netdev_priv(netdev); 5633 struct i40e_aq_get_phy_abilities_resp phy_cfg; 5634 struct i40e_vsi *vsi = np->vsi; 5635 struct i40e_pf *pf = vsi->back; 5636 struct i40e_hw *hw = &pf->hw; 5637 int status = 0; 5638 5639 /* Get initial PHY capabilities */ 5640 status = i40e_aq_get_phy_capabilities(hw, false, true, &phy_cfg, NULL); 5641 if (status) 5642 return -EAGAIN; 5643 5644 /* Check whether NIC configuration is compatible with Energy Efficient 5645 * Ethernet (EEE) mode. 5646 */ 5647 if (phy_cfg.eee_capability == 0) 5648 return -EOPNOTSUPP; 5649 5650 edata->supported = SUPPORTED_Autoneg; 5651 edata->lp_advertised = edata->supported; 5652 5653 /* Get current configuration */ 5654 status = i40e_aq_get_phy_capabilities(hw, false, false, &phy_cfg, NULL); 5655 if (status) 5656 return -EAGAIN; 5657 5658 edata->advertised = phy_cfg.eee_capability ? SUPPORTED_Autoneg : 0U; 5659 edata->eee_enabled = !!edata->advertised; 5660 edata->tx_lpi_enabled = pf->stats.tx_lpi_status; 5661 5662 edata->eee_active = pf->stats.tx_lpi_status && pf->stats.rx_lpi_status; 5663 5664 return 0; 5665 } 5666 5667 static int i40e_is_eee_param_supported(struct net_device *netdev, 5668 struct ethtool_eee *edata) 5669 { 5670 struct i40e_netdev_priv *np = netdev_priv(netdev); 5671 struct i40e_vsi *vsi = np->vsi; 5672 struct i40e_pf *pf = vsi->back; 5673 struct i40e_ethtool_not_used { 5674 u32 value; 5675 const char *name; 5676 } param[] = { 5677 {edata->advertised & ~SUPPORTED_Autoneg, "advertise"}, 5678 {edata->tx_lpi_timer, "tx-timer"}, 5679 {edata->tx_lpi_enabled != pf->stats.tx_lpi_status, "tx-lpi"} 5680 }; 5681 int i; 5682 5683 for (i = 0; i < ARRAY_SIZE(param); i++) { 5684 if (param[i].value) { 5685 netdev_info(netdev, 5686 "EEE setting %s not supported\n", 5687 param[i].name); 5688 return -EOPNOTSUPP; 5689 } 5690 } 5691 5692 return 0; 5693 } 5694 5695 static int i40e_set_eee(struct net_device *netdev, struct ethtool_eee *edata) 5696 { 5697 struct i40e_netdev_priv *np = netdev_priv(netdev); 5698 struct i40e_aq_get_phy_abilities_resp abilities; 5699 struct i40e_aq_set_phy_config config; 5700 struct i40e_vsi *vsi = np->vsi; 5701 struct i40e_pf *pf = vsi->back; 5702 struct i40e_hw *hw = &pf->hw; 5703 __le16 eee_capability; 5704 int status = 0; 5705 5706 /* Deny parameters we don't support */ 5707 if (i40e_is_eee_param_supported(netdev, edata)) 5708 return -EOPNOTSUPP; 5709 5710 /* Get initial PHY capabilities */ 5711 status = i40e_aq_get_phy_capabilities(hw, false, true, &abilities, 5712 NULL); 5713 if (status) 5714 return -EAGAIN; 5715 5716 /* Check whether NIC configuration is compatible with Energy Efficient 5717 * Ethernet (EEE) mode. 5718 */ 5719 if (abilities.eee_capability == 0) 5720 return -EOPNOTSUPP; 5721 5722 /* Cache initial EEE capability */ 5723 eee_capability = abilities.eee_capability; 5724 5725 /* Get current PHY configuration */ 5726 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 5727 NULL); 5728 if (status) 5729 return -EAGAIN; 5730 5731 /* Cache current PHY configuration */ 5732 config.phy_type = abilities.phy_type; 5733 config.phy_type_ext = abilities.phy_type_ext; 5734 config.link_speed = abilities.link_speed; 5735 config.abilities = abilities.abilities | 5736 I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 5737 config.eeer = abilities.eeer_val; 5738 config.low_power_ctrl = abilities.d3_lpan; 5739 config.fec_config = abilities.fec_cfg_curr_mod_ext_info & 5740 I40E_AQ_PHY_FEC_CONFIG_MASK; 5741 5742 /* Set desired EEE state */ 5743 if (edata->eee_enabled) { 5744 config.eee_capability = eee_capability; 5745 config.eeer |= cpu_to_le32(I40E_PRTPM_EEER_TX_LPI_EN_MASK); 5746 } else { 5747 config.eee_capability = 0; 5748 config.eeer &= cpu_to_le32(~I40E_PRTPM_EEER_TX_LPI_EN_MASK); 5749 } 5750 5751 /* Apply modified PHY configuration */ 5752 status = i40e_aq_set_phy_config(hw, &config, NULL); 5753 if (status) 5754 return -EAGAIN; 5755 5756 return 0; 5757 } 5758 5759 static const struct ethtool_ops i40e_ethtool_recovery_mode_ops = { 5760 .get_drvinfo = i40e_get_drvinfo, 5761 .set_eeprom = i40e_set_eeprom, 5762 .get_eeprom_len = i40e_get_eeprom_len, 5763 .get_eeprom = i40e_get_eeprom, 5764 }; 5765 5766 static const struct ethtool_ops i40e_ethtool_ops = { 5767 .supported_coalesce_params = ETHTOOL_COALESCE_USECS | 5768 ETHTOOL_COALESCE_MAX_FRAMES_IRQ | 5769 ETHTOOL_COALESCE_USE_ADAPTIVE | 5770 ETHTOOL_COALESCE_RX_USECS_HIGH | 5771 ETHTOOL_COALESCE_TX_USECS_HIGH, 5772 .get_drvinfo = i40e_get_drvinfo, 5773 .get_regs_len = i40e_get_regs_len, 5774 .get_regs = i40e_get_regs, 5775 .nway_reset = i40e_nway_reset, 5776 .get_link = ethtool_op_get_link, 5777 .get_wol = i40e_get_wol, 5778 .set_wol = i40e_set_wol, 5779 .set_eeprom = i40e_set_eeprom, 5780 .get_eeprom_len = i40e_get_eeprom_len, 5781 .get_eeprom = i40e_get_eeprom, 5782 .get_ringparam = i40e_get_ringparam, 5783 .set_ringparam = i40e_set_ringparam, 5784 .get_pauseparam = i40e_get_pauseparam, 5785 .set_pauseparam = i40e_set_pauseparam, 5786 .get_msglevel = i40e_get_msglevel, 5787 .set_msglevel = i40e_set_msglevel, 5788 .get_rxnfc = i40e_get_rxnfc, 5789 .set_rxnfc = i40e_set_rxnfc, 5790 .self_test = i40e_diag_test, 5791 .get_strings = i40e_get_strings, 5792 .get_eee = i40e_get_eee, 5793 .set_eee = i40e_set_eee, 5794 .set_phys_id = i40e_set_phys_id, 5795 .get_sset_count = i40e_get_sset_count, 5796 .get_ethtool_stats = i40e_get_ethtool_stats, 5797 .get_coalesce = i40e_get_coalesce, 5798 .set_coalesce = i40e_set_coalesce, 5799 .get_rxfh_key_size = i40e_get_rxfh_key_size, 5800 .get_rxfh_indir_size = i40e_get_rxfh_indir_size, 5801 .get_rxfh = i40e_get_rxfh, 5802 .set_rxfh = i40e_set_rxfh, 5803 .get_channels = i40e_get_channels, 5804 .set_channels = i40e_set_channels, 5805 .get_module_info = i40e_get_module_info, 5806 .get_module_eeprom = i40e_get_module_eeprom, 5807 .get_ts_info = i40e_get_ts_info, 5808 .get_priv_flags = i40e_get_priv_flags, 5809 .set_priv_flags = i40e_set_priv_flags, 5810 .get_per_queue_coalesce = i40e_get_per_queue_coalesce, 5811 .set_per_queue_coalesce = i40e_set_per_queue_coalesce, 5812 .get_link_ksettings = i40e_get_link_ksettings, 5813 .set_link_ksettings = i40e_set_link_ksettings, 5814 .get_fecparam = i40e_get_fec_param, 5815 .set_fecparam = i40e_set_fec_param, 5816 .flash_device = i40e_ddp_flash, 5817 }; 5818 5819 void i40e_set_ethtool_ops(struct net_device *netdev) 5820 { 5821 struct i40e_netdev_priv *np = netdev_priv(netdev); 5822 struct i40e_pf *pf = np->vsi->back; 5823 5824 if (!test_bit(__I40E_RECOVERY_MODE, pf->state)) 5825 netdev->ethtool_ops = &i40e_ethtool_ops; 5826 else 5827 netdev->ethtool_ops = &i40e_ethtool_recovery_mode_ops; 5828 } 5829