1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright(c) 2013 - 2018 Intel Corporation. */ 3 4 /* ethtool support for i40e */ 5 6 #include "i40e.h" 7 #include "i40e_diag.h" 8 #include "i40e_txrx_common.h" 9 10 /* ethtool statistics helpers */ 11 12 /** 13 * struct i40e_stats - definition for an ethtool statistic 14 * @stat_string: statistic name to display in ethtool -S output 15 * @sizeof_stat: the sizeof() the stat, must be no greater than sizeof(u64) 16 * @stat_offset: offsetof() the stat from a base pointer 17 * 18 * This structure defines a statistic to be added to the ethtool stats buffer. 19 * It defines a statistic as offset from a common base pointer. Stats should 20 * be defined in constant arrays using the I40E_STAT macro, with every element 21 * of the array using the same _type for calculating the sizeof_stat and 22 * stat_offset. 23 * 24 * The @sizeof_stat is expected to be sizeof(u8), sizeof(u16), sizeof(u32) or 25 * sizeof(u64). Other sizes are not expected and will produce a WARN_ONCE from 26 * the i40e_add_ethtool_stat() helper function. 27 * 28 * The @stat_string is interpreted as a format string, allowing formatted 29 * values to be inserted while looping over multiple structures for a given 30 * statistics array. Thus, every statistic string in an array should have the 31 * same type and number of format specifiers, to be formatted by variadic 32 * arguments to the i40e_add_stat_string() helper function. 33 **/ 34 struct i40e_stats { 35 char stat_string[ETH_GSTRING_LEN]; 36 int sizeof_stat; 37 int stat_offset; 38 }; 39 40 /* Helper macro to define an i40e_stat structure with proper size and type. 41 * Use this when defining constant statistics arrays. Note that @_type expects 42 * only a type name and is used multiple times. 43 */ 44 #define I40E_STAT(_type, _name, _stat) { \ 45 .stat_string = _name, \ 46 .sizeof_stat = sizeof_field(_type, _stat), \ 47 .stat_offset = offsetof(_type, _stat) \ 48 } 49 50 /* Helper macro for defining some statistics directly copied from the netdev 51 * stats structure. 52 */ 53 #define I40E_NETDEV_STAT(_net_stat) \ 54 I40E_STAT(struct rtnl_link_stats64, #_net_stat, _net_stat) 55 56 /* Helper macro for defining some statistics related to queues */ 57 #define I40E_QUEUE_STAT(_name, _stat) \ 58 I40E_STAT(struct i40e_ring, _name, _stat) 59 60 /* Stats associated with a Tx or Rx ring */ 61 static const struct i40e_stats i40e_gstrings_queue_stats[] = { 62 I40E_QUEUE_STAT("%s-%u.packets", stats.packets), 63 I40E_QUEUE_STAT("%s-%u.bytes", stats.bytes), 64 }; 65 66 /** 67 * i40e_add_one_ethtool_stat - copy the stat into the supplied buffer 68 * @data: location to store the stat value 69 * @pointer: basis for where to copy from 70 * @stat: the stat definition 71 * 72 * Copies the stat data defined by the pointer and stat structure pair into 73 * the memory supplied as data. Used to implement i40e_add_ethtool_stats and 74 * i40e_add_queue_stats. If the pointer is null, data will be zero'd. 75 */ 76 static void 77 i40e_add_one_ethtool_stat(u64 *data, void *pointer, 78 const struct i40e_stats *stat) 79 { 80 char *p; 81 82 if (!pointer) { 83 /* ensure that the ethtool data buffer is zero'd for any stats 84 * which don't have a valid pointer. 85 */ 86 *data = 0; 87 return; 88 } 89 90 p = (char *)pointer + stat->stat_offset; 91 switch (stat->sizeof_stat) { 92 case sizeof(u64): 93 *data = *((u64 *)p); 94 break; 95 case sizeof(u32): 96 *data = *((u32 *)p); 97 break; 98 case sizeof(u16): 99 *data = *((u16 *)p); 100 break; 101 case sizeof(u8): 102 *data = *((u8 *)p); 103 break; 104 default: 105 WARN_ONCE(1, "unexpected stat size for %s", 106 stat->stat_string); 107 *data = 0; 108 } 109 } 110 111 /** 112 * __i40e_add_ethtool_stats - copy stats into the ethtool supplied buffer 113 * @data: ethtool stats buffer 114 * @pointer: location to copy stats from 115 * @stats: array of stats to copy 116 * @size: the size of the stats definition 117 * 118 * Copy the stats defined by the stats array using the pointer as a base into 119 * the data buffer supplied by ethtool. Updates the data pointer to point to 120 * the next empty location for successive calls to __i40e_add_ethtool_stats. 121 * If pointer is null, set the data values to zero and update the pointer to 122 * skip these stats. 123 **/ 124 static void 125 __i40e_add_ethtool_stats(u64 **data, void *pointer, 126 const struct i40e_stats stats[], 127 const unsigned int size) 128 { 129 unsigned int i; 130 131 for (i = 0; i < size; i++) 132 i40e_add_one_ethtool_stat((*data)++, pointer, &stats[i]); 133 } 134 135 /** 136 * i40e_add_ethtool_stats - copy stats into ethtool supplied buffer 137 * @data: ethtool stats buffer 138 * @pointer: location where stats are stored 139 * @stats: static const array of stat definitions 140 * 141 * Macro to ease the use of __i40e_add_ethtool_stats by taking a static 142 * constant stats array and passing the ARRAY_SIZE(). This avoids typos by 143 * ensuring that we pass the size associated with the given stats array. 144 * 145 * The parameter @stats is evaluated twice, so parameters with side effects 146 * should be avoided. 147 **/ 148 #define i40e_add_ethtool_stats(data, pointer, stats) \ 149 __i40e_add_ethtool_stats(data, pointer, stats, ARRAY_SIZE(stats)) 150 151 /** 152 * i40e_add_queue_stats - copy queue statistics into supplied buffer 153 * @data: ethtool stats buffer 154 * @ring: the ring to copy 155 * 156 * Queue statistics must be copied while protected by 157 * u64_stats_fetch_begin_irq, so we can't directly use i40e_add_ethtool_stats. 158 * Assumes that queue stats are defined in i40e_gstrings_queue_stats. If the 159 * ring pointer is null, zero out the queue stat values and update the data 160 * pointer. Otherwise safely copy the stats from the ring into the supplied 161 * buffer and update the data pointer when finished. 162 * 163 * This function expects to be called while under rcu_read_lock(). 164 **/ 165 static void 166 i40e_add_queue_stats(u64 **data, struct i40e_ring *ring) 167 { 168 const unsigned int size = ARRAY_SIZE(i40e_gstrings_queue_stats); 169 const struct i40e_stats *stats = i40e_gstrings_queue_stats; 170 unsigned int start; 171 unsigned int i; 172 173 /* To avoid invalid statistics values, ensure that we keep retrying 174 * the copy until we get a consistent value according to 175 * u64_stats_fetch_retry_irq. But first, make sure our ring is 176 * non-null before attempting to access its syncp. 177 */ 178 do { 179 start = !ring ? 0 : u64_stats_fetch_begin_irq(&ring->syncp); 180 for (i = 0; i < size; i++) { 181 i40e_add_one_ethtool_stat(&(*data)[i], ring, 182 &stats[i]); 183 } 184 } while (ring && u64_stats_fetch_retry_irq(&ring->syncp, start)); 185 186 /* Once we successfully copy the stats in, update the data pointer */ 187 *data += size; 188 } 189 190 /** 191 * __i40e_add_stat_strings - copy stat strings into ethtool buffer 192 * @p: ethtool supplied buffer 193 * @stats: stat definitions array 194 * @size: size of the stats array 195 * 196 * Format and copy the strings described by stats into the buffer pointed at 197 * by p. 198 **/ 199 static void __i40e_add_stat_strings(u8 **p, const struct i40e_stats stats[], 200 const unsigned int size, ...) 201 { 202 unsigned int i; 203 204 for (i = 0; i < size; i++) { 205 va_list args; 206 207 va_start(args, size); 208 vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args); 209 *p += ETH_GSTRING_LEN; 210 va_end(args); 211 } 212 } 213 214 /** 215 * i40e_add_stat_strings - copy stat strings into ethtool buffer 216 * @p: ethtool supplied buffer 217 * @stats: stat definitions array 218 * 219 * Format and copy the strings described by the const static stats value into 220 * the buffer pointed at by p. 221 * 222 * The parameter @stats is evaluated twice, so parameters with side effects 223 * should be avoided. Additionally, stats must be an array such that 224 * ARRAY_SIZE can be called on it. 225 **/ 226 #define i40e_add_stat_strings(p, stats, ...) \ 227 __i40e_add_stat_strings(p, stats, ARRAY_SIZE(stats), ## __VA_ARGS__) 228 229 #define I40E_PF_STAT(_name, _stat) \ 230 I40E_STAT(struct i40e_pf, _name, _stat) 231 #define I40E_VSI_STAT(_name, _stat) \ 232 I40E_STAT(struct i40e_vsi, _name, _stat) 233 #define I40E_VEB_STAT(_name, _stat) \ 234 I40E_STAT(struct i40e_veb, _name, _stat) 235 #define I40E_VEB_TC_STAT(_name, _stat) \ 236 I40E_STAT(struct i40e_cp_veb_tc_stats, _name, _stat) 237 #define I40E_PFC_STAT(_name, _stat) \ 238 I40E_STAT(struct i40e_pfc_stats, _name, _stat) 239 #define I40E_QUEUE_STAT(_name, _stat) \ 240 I40E_STAT(struct i40e_ring, _name, _stat) 241 242 static const struct i40e_stats i40e_gstrings_net_stats[] = { 243 I40E_NETDEV_STAT(rx_packets), 244 I40E_NETDEV_STAT(tx_packets), 245 I40E_NETDEV_STAT(rx_bytes), 246 I40E_NETDEV_STAT(tx_bytes), 247 I40E_NETDEV_STAT(rx_errors), 248 I40E_NETDEV_STAT(tx_errors), 249 I40E_NETDEV_STAT(rx_dropped), 250 I40E_NETDEV_STAT(tx_dropped), 251 I40E_NETDEV_STAT(collisions), 252 I40E_NETDEV_STAT(rx_length_errors), 253 I40E_NETDEV_STAT(rx_crc_errors), 254 }; 255 256 static const struct i40e_stats i40e_gstrings_veb_stats[] = { 257 I40E_VEB_STAT("veb.rx_bytes", stats.rx_bytes), 258 I40E_VEB_STAT("veb.tx_bytes", stats.tx_bytes), 259 I40E_VEB_STAT("veb.rx_unicast", stats.rx_unicast), 260 I40E_VEB_STAT("veb.tx_unicast", stats.tx_unicast), 261 I40E_VEB_STAT("veb.rx_multicast", stats.rx_multicast), 262 I40E_VEB_STAT("veb.tx_multicast", stats.tx_multicast), 263 I40E_VEB_STAT("veb.rx_broadcast", stats.rx_broadcast), 264 I40E_VEB_STAT("veb.tx_broadcast", stats.tx_broadcast), 265 I40E_VEB_STAT("veb.rx_discards", stats.rx_discards), 266 I40E_VEB_STAT("veb.tx_discards", stats.tx_discards), 267 I40E_VEB_STAT("veb.tx_errors", stats.tx_errors), 268 I40E_VEB_STAT("veb.rx_unknown_protocol", stats.rx_unknown_protocol), 269 }; 270 271 struct i40e_cp_veb_tc_stats { 272 u64 tc_rx_packets; 273 u64 tc_rx_bytes; 274 u64 tc_tx_packets; 275 u64 tc_tx_bytes; 276 }; 277 278 static const struct i40e_stats i40e_gstrings_veb_tc_stats[] = { 279 I40E_VEB_TC_STAT("veb.tc_%u_tx_packets", tc_tx_packets), 280 I40E_VEB_TC_STAT("veb.tc_%u_tx_bytes", tc_tx_bytes), 281 I40E_VEB_TC_STAT("veb.tc_%u_rx_packets", tc_rx_packets), 282 I40E_VEB_TC_STAT("veb.tc_%u_rx_bytes", tc_rx_bytes), 283 }; 284 285 static const struct i40e_stats i40e_gstrings_misc_stats[] = { 286 I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast), 287 I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast), 288 I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast), 289 I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast), 290 I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast), 291 I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast), 292 I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol), 293 I40E_VSI_STAT("tx_linearize", tx_linearize), 294 I40E_VSI_STAT("tx_force_wb", tx_force_wb), 295 I40E_VSI_STAT("tx_busy", tx_busy), 296 I40E_VSI_STAT("tx_stopped", tx_stopped), 297 I40E_VSI_STAT("rx_alloc_fail", rx_buf_failed), 298 I40E_VSI_STAT("rx_pg_alloc_fail", rx_page_failed), 299 I40E_VSI_STAT("rx_cache_reuse", rx_page_reuse), 300 I40E_VSI_STAT("rx_cache_alloc", rx_page_alloc), 301 I40E_VSI_STAT("rx_cache_waive", rx_page_waive), 302 I40E_VSI_STAT("rx_cache_busy", rx_page_busy), 303 I40E_VSI_STAT("tx_restart", tx_restart), 304 }; 305 306 /* These PF_STATs might look like duplicates of some NETDEV_STATs, 307 * but they are separate. This device supports Virtualization, and 308 * as such might have several netdevs supporting VMDq and FCoE going 309 * through a single port. The NETDEV_STATs are for individual netdevs 310 * seen at the top of the stack, and the PF_STATs are for the physical 311 * function at the bottom of the stack hosting those netdevs. 312 * 313 * The PF_STATs are appended to the netdev stats only when ethtool -S 314 * is queried on the base PF netdev, not on the VMDq or FCoE netdev. 315 */ 316 static const struct i40e_stats i40e_gstrings_stats[] = { 317 I40E_PF_STAT("port.rx_bytes", stats.eth.rx_bytes), 318 I40E_PF_STAT("port.tx_bytes", stats.eth.tx_bytes), 319 I40E_PF_STAT("port.rx_unicast", stats.eth.rx_unicast), 320 I40E_PF_STAT("port.tx_unicast", stats.eth.tx_unicast), 321 I40E_PF_STAT("port.rx_multicast", stats.eth.rx_multicast), 322 I40E_PF_STAT("port.tx_multicast", stats.eth.tx_multicast), 323 I40E_PF_STAT("port.rx_broadcast", stats.eth.rx_broadcast), 324 I40E_PF_STAT("port.tx_broadcast", stats.eth.tx_broadcast), 325 I40E_PF_STAT("port.tx_errors", stats.eth.tx_errors), 326 I40E_PF_STAT("port.rx_dropped", stats.eth.rx_discards), 327 I40E_PF_STAT("port.tx_dropped_link_down", stats.tx_dropped_link_down), 328 I40E_PF_STAT("port.rx_crc_errors", stats.crc_errors), 329 I40E_PF_STAT("port.illegal_bytes", stats.illegal_bytes), 330 I40E_PF_STAT("port.mac_local_faults", stats.mac_local_faults), 331 I40E_PF_STAT("port.mac_remote_faults", stats.mac_remote_faults), 332 I40E_PF_STAT("port.tx_timeout", tx_timeout_count), 333 I40E_PF_STAT("port.rx_csum_bad", hw_csum_rx_error), 334 I40E_PF_STAT("port.rx_length_errors", stats.rx_length_errors), 335 I40E_PF_STAT("port.link_xon_rx", stats.link_xon_rx), 336 I40E_PF_STAT("port.link_xoff_rx", stats.link_xoff_rx), 337 I40E_PF_STAT("port.link_xon_tx", stats.link_xon_tx), 338 I40E_PF_STAT("port.link_xoff_tx", stats.link_xoff_tx), 339 I40E_PF_STAT("port.rx_size_64", stats.rx_size_64), 340 I40E_PF_STAT("port.rx_size_127", stats.rx_size_127), 341 I40E_PF_STAT("port.rx_size_255", stats.rx_size_255), 342 I40E_PF_STAT("port.rx_size_511", stats.rx_size_511), 343 I40E_PF_STAT("port.rx_size_1023", stats.rx_size_1023), 344 I40E_PF_STAT("port.rx_size_1522", stats.rx_size_1522), 345 I40E_PF_STAT("port.rx_size_big", stats.rx_size_big), 346 I40E_PF_STAT("port.tx_size_64", stats.tx_size_64), 347 I40E_PF_STAT("port.tx_size_127", stats.tx_size_127), 348 I40E_PF_STAT("port.tx_size_255", stats.tx_size_255), 349 I40E_PF_STAT("port.tx_size_511", stats.tx_size_511), 350 I40E_PF_STAT("port.tx_size_1023", stats.tx_size_1023), 351 I40E_PF_STAT("port.tx_size_1522", stats.tx_size_1522), 352 I40E_PF_STAT("port.tx_size_big", stats.tx_size_big), 353 I40E_PF_STAT("port.rx_undersize", stats.rx_undersize), 354 I40E_PF_STAT("port.rx_fragments", stats.rx_fragments), 355 I40E_PF_STAT("port.rx_oversize", stats.rx_oversize), 356 I40E_PF_STAT("port.rx_jabber", stats.rx_jabber), 357 I40E_PF_STAT("port.VF_admin_queue_requests", vf_aq_requests), 358 I40E_PF_STAT("port.arq_overflows", arq_overflows), 359 I40E_PF_STAT("port.tx_hwtstamp_timeouts", tx_hwtstamp_timeouts), 360 I40E_PF_STAT("port.rx_hwtstamp_cleared", rx_hwtstamp_cleared), 361 I40E_PF_STAT("port.tx_hwtstamp_skipped", tx_hwtstamp_skipped), 362 I40E_PF_STAT("port.fdir_flush_cnt", fd_flush_cnt), 363 I40E_PF_STAT("port.fdir_atr_match", stats.fd_atr_match), 364 I40E_PF_STAT("port.fdir_atr_tunnel_match", stats.fd_atr_tunnel_match), 365 I40E_PF_STAT("port.fdir_atr_status", stats.fd_atr_status), 366 I40E_PF_STAT("port.fdir_sb_match", stats.fd_sb_match), 367 I40E_PF_STAT("port.fdir_sb_status", stats.fd_sb_status), 368 369 /* LPI stats */ 370 I40E_PF_STAT("port.tx_lpi_status", stats.tx_lpi_status), 371 I40E_PF_STAT("port.rx_lpi_status", stats.rx_lpi_status), 372 I40E_PF_STAT("port.tx_lpi_count", stats.tx_lpi_count), 373 I40E_PF_STAT("port.rx_lpi_count", stats.rx_lpi_count), 374 }; 375 376 struct i40e_pfc_stats { 377 u64 priority_xon_rx; 378 u64 priority_xoff_rx; 379 u64 priority_xon_tx; 380 u64 priority_xoff_tx; 381 u64 priority_xon_2_xoff; 382 }; 383 384 static const struct i40e_stats i40e_gstrings_pfc_stats[] = { 385 I40E_PFC_STAT("port.tx_priority_%u_xon_tx", priority_xon_tx), 386 I40E_PFC_STAT("port.tx_priority_%u_xoff_tx", priority_xoff_tx), 387 I40E_PFC_STAT("port.rx_priority_%u_xon_rx", priority_xon_rx), 388 I40E_PFC_STAT("port.rx_priority_%u_xoff_rx", priority_xoff_rx), 389 I40E_PFC_STAT("port.rx_priority_%u_xon_2_xoff", priority_xon_2_xoff), 390 }; 391 392 #define I40E_NETDEV_STATS_LEN ARRAY_SIZE(i40e_gstrings_net_stats) 393 394 #define I40E_MISC_STATS_LEN ARRAY_SIZE(i40e_gstrings_misc_stats) 395 396 #define I40E_VSI_STATS_LEN (I40E_NETDEV_STATS_LEN + I40E_MISC_STATS_LEN) 397 398 #define I40E_PFC_STATS_LEN (ARRAY_SIZE(i40e_gstrings_pfc_stats) * \ 399 I40E_MAX_USER_PRIORITY) 400 401 #define I40E_VEB_STATS_LEN (ARRAY_SIZE(i40e_gstrings_veb_stats) + \ 402 (ARRAY_SIZE(i40e_gstrings_veb_tc_stats) * \ 403 I40E_MAX_TRAFFIC_CLASS)) 404 405 #define I40E_GLOBAL_STATS_LEN ARRAY_SIZE(i40e_gstrings_stats) 406 407 #define I40E_PF_STATS_LEN (I40E_GLOBAL_STATS_LEN + \ 408 I40E_PFC_STATS_LEN + \ 409 I40E_VEB_STATS_LEN + \ 410 I40E_VSI_STATS_LEN) 411 412 /* Length of stats for a single queue */ 413 #define I40E_QUEUE_STATS_LEN ARRAY_SIZE(i40e_gstrings_queue_stats) 414 415 enum i40e_ethtool_test_id { 416 I40E_ETH_TEST_REG = 0, 417 I40E_ETH_TEST_EEPROM, 418 I40E_ETH_TEST_INTR, 419 I40E_ETH_TEST_LINK, 420 }; 421 422 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = { 423 "Register test (offline)", 424 "Eeprom test (offline)", 425 "Interrupt test (offline)", 426 "Link test (on/offline)" 427 }; 428 429 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN) 430 431 struct i40e_priv_flags { 432 char flag_string[ETH_GSTRING_LEN]; 433 u64 flag; 434 bool read_only; 435 }; 436 437 #define I40E_PRIV_FLAG(_name, _flag, _read_only) { \ 438 .flag_string = _name, \ 439 .flag = _flag, \ 440 .read_only = _read_only, \ 441 } 442 443 static const struct i40e_priv_flags i40e_gstrings_priv_flags[] = { 444 /* NOTE: MFP setting cannot be changed */ 445 I40E_PRIV_FLAG("MFP", I40E_FLAG_MFP_ENABLED, 1), 446 I40E_PRIV_FLAG("total-port-shutdown", 447 I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED, 1), 448 I40E_PRIV_FLAG("LinkPolling", I40E_FLAG_LINK_POLLING_ENABLED, 0), 449 I40E_PRIV_FLAG("flow-director-atr", I40E_FLAG_FD_ATR_ENABLED, 0), 450 I40E_PRIV_FLAG("veb-stats", I40E_FLAG_VEB_STATS_ENABLED, 0), 451 I40E_PRIV_FLAG("hw-atr-eviction", I40E_FLAG_HW_ATR_EVICT_ENABLED, 0), 452 I40E_PRIV_FLAG("link-down-on-close", 453 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED, 0), 454 I40E_PRIV_FLAG("legacy-rx", I40E_FLAG_LEGACY_RX, 0), 455 I40E_PRIV_FLAG("disable-source-pruning", 456 I40E_FLAG_SOURCE_PRUNING_DISABLED, 0), 457 I40E_PRIV_FLAG("disable-fw-lldp", I40E_FLAG_DISABLE_FW_LLDP, 0), 458 I40E_PRIV_FLAG("rs-fec", I40E_FLAG_RS_FEC, 0), 459 I40E_PRIV_FLAG("base-r-fec", I40E_FLAG_BASE_R_FEC, 0), 460 I40E_PRIV_FLAG("vf-vlan-pruning", 461 I40E_FLAG_VF_VLAN_PRUNING, 0), 462 }; 463 464 #define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gstrings_priv_flags) 465 466 /* Private flags with a global effect, restricted to PF 0 */ 467 static const struct i40e_priv_flags i40e_gl_gstrings_priv_flags[] = { 468 I40E_PRIV_FLAG("vf-true-promisc-support", 469 I40E_FLAG_TRUE_PROMISC_SUPPORT, 0), 470 }; 471 472 #define I40E_GL_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gl_gstrings_priv_flags) 473 474 /** 475 * i40e_partition_setting_complaint - generic complaint for MFP restriction 476 * @pf: the PF struct 477 **/ 478 static void i40e_partition_setting_complaint(struct i40e_pf *pf) 479 { 480 dev_info(&pf->pdev->dev, 481 "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"); 482 } 483 484 /** 485 * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes 486 * @pf: PF struct with phy_types 487 * @ks: ethtool link ksettings struct to fill out 488 * 489 **/ 490 static void i40e_phy_type_to_ethtool(struct i40e_pf *pf, 491 struct ethtool_link_ksettings *ks) 492 { 493 struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info; 494 u64 phy_types = pf->hw.phy.phy_types; 495 496 ethtool_link_ksettings_zero_link_mode(ks, supported); 497 ethtool_link_ksettings_zero_link_mode(ks, advertising); 498 499 if (phy_types & I40E_CAP_PHY_TYPE_SGMII) { 500 ethtool_link_ksettings_add_link_mode(ks, supported, 501 1000baseT_Full); 502 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 503 ethtool_link_ksettings_add_link_mode(ks, advertising, 504 1000baseT_Full); 505 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) { 506 ethtool_link_ksettings_add_link_mode(ks, supported, 507 100baseT_Full); 508 ethtool_link_ksettings_add_link_mode(ks, advertising, 509 100baseT_Full); 510 } 511 } 512 if (phy_types & I40E_CAP_PHY_TYPE_XAUI || 513 phy_types & I40E_CAP_PHY_TYPE_XFI || 514 phy_types & I40E_CAP_PHY_TYPE_SFI || 515 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU || 516 phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC) { 517 ethtool_link_ksettings_add_link_mode(ks, supported, 518 10000baseT_Full); 519 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 520 ethtool_link_ksettings_add_link_mode(ks, advertising, 521 10000baseT_Full); 522 } 523 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_T) { 524 ethtool_link_ksettings_add_link_mode(ks, supported, 525 10000baseT_Full); 526 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 527 ethtool_link_ksettings_add_link_mode(ks, advertising, 528 10000baseT_Full); 529 } 530 if (phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T) { 531 ethtool_link_ksettings_add_link_mode(ks, supported, 532 2500baseT_Full); 533 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB) 534 ethtool_link_ksettings_add_link_mode(ks, advertising, 535 2500baseT_Full); 536 } 537 if (phy_types & I40E_CAP_PHY_TYPE_5GBASE_T) { 538 ethtool_link_ksettings_add_link_mode(ks, supported, 539 5000baseT_Full); 540 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB) 541 ethtool_link_ksettings_add_link_mode(ks, advertising, 542 5000baseT_Full); 543 } 544 if (phy_types & I40E_CAP_PHY_TYPE_XLAUI || 545 phy_types & I40E_CAP_PHY_TYPE_XLPPI || 546 phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC) 547 ethtool_link_ksettings_add_link_mode(ks, supported, 548 40000baseCR4_Full); 549 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU || 550 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) { 551 ethtool_link_ksettings_add_link_mode(ks, supported, 552 40000baseCR4_Full); 553 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB) 554 ethtool_link_ksettings_add_link_mode(ks, advertising, 555 40000baseCR4_Full); 556 } 557 if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) { 558 ethtool_link_ksettings_add_link_mode(ks, supported, 559 100baseT_Full); 560 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 561 ethtool_link_ksettings_add_link_mode(ks, advertising, 562 100baseT_Full); 563 } 564 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T) { 565 ethtool_link_ksettings_add_link_mode(ks, supported, 566 1000baseT_Full); 567 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 568 ethtool_link_ksettings_add_link_mode(ks, advertising, 569 1000baseT_Full); 570 } 571 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4) { 572 ethtool_link_ksettings_add_link_mode(ks, supported, 573 40000baseSR4_Full); 574 ethtool_link_ksettings_add_link_mode(ks, advertising, 575 40000baseSR4_Full); 576 } 577 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4) { 578 ethtool_link_ksettings_add_link_mode(ks, supported, 579 40000baseLR4_Full); 580 ethtool_link_ksettings_add_link_mode(ks, advertising, 581 40000baseLR4_Full); 582 } 583 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) { 584 ethtool_link_ksettings_add_link_mode(ks, supported, 585 40000baseKR4_Full); 586 ethtool_link_ksettings_add_link_mode(ks, advertising, 587 40000baseKR4_Full); 588 } 589 if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) { 590 ethtool_link_ksettings_add_link_mode(ks, supported, 591 20000baseKR2_Full); 592 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB) 593 ethtool_link_ksettings_add_link_mode(ks, advertising, 594 20000baseKR2_Full); 595 } 596 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) { 597 ethtool_link_ksettings_add_link_mode(ks, supported, 598 10000baseKX4_Full); 599 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 600 ethtool_link_ksettings_add_link_mode(ks, advertising, 601 10000baseKX4_Full); 602 } 603 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR && 604 !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) { 605 ethtool_link_ksettings_add_link_mode(ks, supported, 606 10000baseKR_Full); 607 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 608 ethtool_link_ksettings_add_link_mode(ks, advertising, 609 10000baseKR_Full); 610 } 611 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX && 612 !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) { 613 ethtool_link_ksettings_add_link_mode(ks, supported, 614 1000baseKX_Full); 615 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 616 ethtool_link_ksettings_add_link_mode(ks, advertising, 617 1000baseKX_Full); 618 } 619 /* need to add 25G PHY types */ 620 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR) { 621 ethtool_link_ksettings_add_link_mode(ks, supported, 622 25000baseKR_Full); 623 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 624 ethtool_link_ksettings_add_link_mode(ks, advertising, 625 25000baseKR_Full); 626 } 627 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR) { 628 ethtool_link_ksettings_add_link_mode(ks, supported, 629 25000baseCR_Full); 630 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 631 ethtool_link_ksettings_add_link_mode(ks, advertising, 632 25000baseCR_Full); 633 } 634 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 635 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR) { 636 ethtool_link_ksettings_add_link_mode(ks, supported, 637 25000baseSR_Full); 638 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 639 ethtool_link_ksettings_add_link_mode(ks, advertising, 640 25000baseSR_Full); 641 } 642 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC || 643 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) { 644 ethtool_link_ksettings_add_link_mode(ks, supported, 645 25000baseCR_Full); 646 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 647 ethtool_link_ksettings_add_link_mode(ks, advertising, 648 25000baseCR_Full); 649 } 650 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR || 651 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR || 652 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 653 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR || 654 phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC || 655 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) { 656 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); 657 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); 658 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); 659 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) { 660 ethtool_link_ksettings_add_link_mode(ks, advertising, 661 FEC_NONE); 662 ethtool_link_ksettings_add_link_mode(ks, advertising, 663 FEC_RS); 664 ethtool_link_ksettings_add_link_mode(ks, advertising, 665 FEC_BASER); 666 } 667 } 668 /* need to add new 10G PHY types */ 669 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 || 670 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU) { 671 ethtool_link_ksettings_add_link_mode(ks, supported, 672 10000baseCR_Full); 673 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 674 ethtool_link_ksettings_add_link_mode(ks, advertising, 675 10000baseCR_Full); 676 } 677 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR) { 678 ethtool_link_ksettings_add_link_mode(ks, supported, 679 10000baseSR_Full); 680 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 681 ethtool_link_ksettings_add_link_mode(ks, advertising, 682 10000baseSR_Full); 683 } 684 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) { 685 ethtool_link_ksettings_add_link_mode(ks, supported, 686 10000baseLR_Full); 687 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 688 ethtool_link_ksettings_add_link_mode(ks, advertising, 689 10000baseLR_Full); 690 } 691 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX || 692 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX || 693 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) { 694 ethtool_link_ksettings_add_link_mode(ks, supported, 695 1000baseX_Full); 696 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 697 ethtool_link_ksettings_add_link_mode(ks, advertising, 698 1000baseX_Full); 699 } 700 /* Autoneg PHY types */ 701 if (phy_types & I40E_CAP_PHY_TYPE_SGMII || 702 phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4 || 703 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU || 704 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4 || 705 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 706 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR || 707 phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR || 708 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR || 709 phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2 || 710 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR || 711 phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR || 712 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4 || 713 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR || 714 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU || 715 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 || 716 phy_types & I40E_CAP_PHY_TYPE_10GBASE_T || 717 phy_types & I40E_CAP_PHY_TYPE_5GBASE_T || 718 phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T || 719 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL || 720 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T || 721 phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX || 722 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX || 723 phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX || 724 phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) { 725 ethtool_link_ksettings_add_link_mode(ks, supported, 726 Autoneg); 727 ethtool_link_ksettings_add_link_mode(ks, advertising, 728 Autoneg); 729 } 730 } 731 732 /** 733 * i40e_get_settings_link_up_fec - Get the FEC mode encoding from mask 734 * @req_fec_info: mask request FEC info 735 * @ks: ethtool ksettings to fill in 736 **/ 737 static void i40e_get_settings_link_up_fec(u8 req_fec_info, 738 struct ethtool_link_ksettings *ks) 739 { 740 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); 741 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); 742 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); 743 744 if ((I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) && 745 (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info)) { 746 ethtool_link_ksettings_add_link_mode(ks, advertising, 747 FEC_NONE); 748 ethtool_link_ksettings_add_link_mode(ks, advertising, 749 FEC_BASER); 750 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); 751 } else if (I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) { 752 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); 753 } else if (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info) { 754 ethtool_link_ksettings_add_link_mode(ks, advertising, 755 FEC_BASER); 756 } else { 757 ethtool_link_ksettings_add_link_mode(ks, advertising, 758 FEC_NONE); 759 } 760 } 761 762 /** 763 * i40e_get_settings_link_up - Get the Link settings for when link is up 764 * @hw: hw structure 765 * @ks: ethtool ksettings to fill in 766 * @netdev: network interface device structure 767 * @pf: pointer to physical function struct 768 **/ 769 static void i40e_get_settings_link_up(struct i40e_hw *hw, 770 struct ethtool_link_ksettings *ks, 771 struct net_device *netdev, 772 struct i40e_pf *pf) 773 { 774 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 775 struct ethtool_link_ksettings cap_ksettings; 776 u32 link_speed = hw_link_info->link_speed; 777 778 /* Initialize supported and advertised settings based on phy settings */ 779 switch (hw_link_info->phy_type) { 780 case I40E_PHY_TYPE_40GBASE_CR4: 781 case I40E_PHY_TYPE_40GBASE_CR4_CU: 782 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 783 ethtool_link_ksettings_add_link_mode(ks, supported, 784 40000baseCR4_Full); 785 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 786 ethtool_link_ksettings_add_link_mode(ks, advertising, 787 40000baseCR4_Full); 788 break; 789 case I40E_PHY_TYPE_XLAUI: 790 case I40E_PHY_TYPE_XLPPI: 791 case I40E_PHY_TYPE_40GBASE_AOC: 792 ethtool_link_ksettings_add_link_mode(ks, supported, 793 40000baseCR4_Full); 794 ethtool_link_ksettings_add_link_mode(ks, advertising, 795 40000baseCR4_Full); 796 break; 797 case I40E_PHY_TYPE_40GBASE_SR4: 798 ethtool_link_ksettings_add_link_mode(ks, supported, 799 40000baseSR4_Full); 800 ethtool_link_ksettings_add_link_mode(ks, advertising, 801 40000baseSR4_Full); 802 break; 803 case I40E_PHY_TYPE_40GBASE_LR4: 804 ethtool_link_ksettings_add_link_mode(ks, supported, 805 40000baseLR4_Full); 806 ethtool_link_ksettings_add_link_mode(ks, advertising, 807 40000baseLR4_Full); 808 break; 809 case I40E_PHY_TYPE_25GBASE_SR: 810 case I40E_PHY_TYPE_25GBASE_LR: 811 case I40E_PHY_TYPE_10GBASE_SR: 812 case I40E_PHY_TYPE_10GBASE_LR: 813 case I40E_PHY_TYPE_1000BASE_SX: 814 case I40E_PHY_TYPE_1000BASE_LX: 815 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 816 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 817 ethtool_link_ksettings_add_link_mode(ks, supported, 818 25000baseSR_Full); 819 ethtool_link_ksettings_add_link_mode(ks, advertising, 820 25000baseSR_Full); 821 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 822 ethtool_link_ksettings_add_link_mode(ks, supported, 823 10000baseSR_Full); 824 ethtool_link_ksettings_add_link_mode(ks, advertising, 825 10000baseSR_Full); 826 ethtool_link_ksettings_add_link_mode(ks, supported, 827 10000baseLR_Full); 828 ethtool_link_ksettings_add_link_mode(ks, advertising, 829 10000baseLR_Full); 830 ethtool_link_ksettings_add_link_mode(ks, supported, 831 1000baseX_Full); 832 ethtool_link_ksettings_add_link_mode(ks, advertising, 833 1000baseX_Full); 834 ethtool_link_ksettings_add_link_mode(ks, supported, 835 10000baseT_Full); 836 if (hw_link_info->module_type[2] & 837 I40E_MODULE_TYPE_1000BASE_SX || 838 hw_link_info->module_type[2] & 839 I40E_MODULE_TYPE_1000BASE_LX) { 840 ethtool_link_ksettings_add_link_mode(ks, supported, 841 1000baseT_Full); 842 if (hw_link_info->requested_speeds & 843 I40E_LINK_SPEED_1GB) 844 ethtool_link_ksettings_add_link_mode( 845 ks, advertising, 1000baseT_Full); 846 } 847 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 848 ethtool_link_ksettings_add_link_mode(ks, advertising, 849 10000baseT_Full); 850 break; 851 case I40E_PHY_TYPE_10GBASE_T: 852 case I40E_PHY_TYPE_5GBASE_T_LINK_STATUS: 853 case I40E_PHY_TYPE_2_5GBASE_T_LINK_STATUS: 854 case I40E_PHY_TYPE_1000BASE_T: 855 case I40E_PHY_TYPE_100BASE_TX: 856 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 857 ethtool_link_ksettings_add_link_mode(ks, supported, 858 10000baseT_Full); 859 ethtool_link_ksettings_add_link_mode(ks, supported, 860 5000baseT_Full); 861 ethtool_link_ksettings_add_link_mode(ks, supported, 862 2500baseT_Full); 863 ethtool_link_ksettings_add_link_mode(ks, supported, 864 1000baseT_Full); 865 ethtool_link_ksettings_add_link_mode(ks, supported, 866 100baseT_Full); 867 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 868 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 869 ethtool_link_ksettings_add_link_mode(ks, advertising, 870 10000baseT_Full); 871 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB) 872 ethtool_link_ksettings_add_link_mode(ks, advertising, 873 5000baseT_Full); 874 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB) 875 ethtool_link_ksettings_add_link_mode(ks, advertising, 876 2500baseT_Full); 877 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 878 ethtool_link_ksettings_add_link_mode(ks, advertising, 879 1000baseT_Full); 880 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 881 ethtool_link_ksettings_add_link_mode(ks, advertising, 882 100baseT_Full); 883 break; 884 case I40E_PHY_TYPE_1000BASE_T_OPTICAL: 885 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 886 ethtool_link_ksettings_add_link_mode(ks, supported, 887 1000baseT_Full); 888 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 889 ethtool_link_ksettings_add_link_mode(ks, advertising, 890 1000baseT_Full); 891 break; 892 case I40E_PHY_TYPE_10GBASE_CR1_CU: 893 case I40E_PHY_TYPE_10GBASE_CR1: 894 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 895 ethtool_link_ksettings_add_link_mode(ks, supported, 896 10000baseT_Full); 897 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 898 ethtool_link_ksettings_add_link_mode(ks, advertising, 899 10000baseT_Full); 900 break; 901 case I40E_PHY_TYPE_XAUI: 902 case I40E_PHY_TYPE_XFI: 903 case I40E_PHY_TYPE_SFI: 904 case I40E_PHY_TYPE_10GBASE_SFPP_CU: 905 case I40E_PHY_TYPE_10GBASE_AOC: 906 ethtool_link_ksettings_add_link_mode(ks, supported, 907 10000baseT_Full); 908 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 909 ethtool_link_ksettings_add_link_mode(ks, advertising, 910 10000baseT_Full); 911 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 912 break; 913 case I40E_PHY_TYPE_SGMII: 914 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 915 ethtool_link_ksettings_add_link_mode(ks, supported, 916 1000baseT_Full); 917 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 918 ethtool_link_ksettings_add_link_mode(ks, advertising, 919 1000baseT_Full); 920 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) { 921 ethtool_link_ksettings_add_link_mode(ks, supported, 922 100baseT_Full); 923 if (hw_link_info->requested_speeds & 924 I40E_LINK_SPEED_100MB) 925 ethtool_link_ksettings_add_link_mode( 926 ks, advertising, 100baseT_Full); 927 } 928 break; 929 case I40E_PHY_TYPE_40GBASE_KR4: 930 case I40E_PHY_TYPE_25GBASE_KR: 931 case I40E_PHY_TYPE_20GBASE_KR2: 932 case I40E_PHY_TYPE_10GBASE_KR: 933 case I40E_PHY_TYPE_10GBASE_KX4: 934 case I40E_PHY_TYPE_1000BASE_KX: 935 ethtool_link_ksettings_add_link_mode(ks, supported, 936 40000baseKR4_Full); 937 ethtool_link_ksettings_add_link_mode(ks, supported, 938 25000baseKR_Full); 939 ethtool_link_ksettings_add_link_mode(ks, supported, 940 20000baseKR2_Full); 941 ethtool_link_ksettings_add_link_mode(ks, supported, 942 10000baseKR_Full); 943 ethtool_link_ksettings_add_link_mode(ks, supported, 944 10000baseKX4_Full); 945 ethtool_link_ksettings_add_link_mode(ks, supported, 946 1000baseKX_Full); 947 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 948 ethtool_link_ksettings_add_link_mode(ks, advertising, 949 40000baseKR4_Full); 950 ethtool_link_ksettings_add_link_mode(ks, advertising, 951 25000baseKR_Full); 952 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 953 ethtool_link_ksettings_add_link_mode(ks, advertising, 954 20000baseKR2_Full); 955 ethtool_link_ksettings_add_link_mode(ks, advertising, 956 10000baseKR_Full); 957 ethtool_link_ksettings_add_link_mode(ks, advertising, 958 10000baseKX4_Full); 959 ethtool_link_ksettings_add_link_mode(ks, advertising, 960 1000baseKX_Full); 961 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 962 break; 963 case I40E_PHY_TYPE_25GBASE_CR: 964 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 965 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 966 ethtool_link_ksettings_add_link_mode(ks, supported, 967 25000baseCR_Full); 968 ethtool_link_ksettings_add_link_mode(ks, advertising, 969 25000baseCR_Full); 970 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 971 972 break; 973 case I40E_PHY_TYPE_25GBASE_AOC: 974 case I40E_PHY_TYPE_25GBASE_ACC: 975 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 976 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 977 ethtool_link_ksettings_add_link_mode(ks, supported, 978 25000baseCR_Full); 979 ethtool_link_ksettings_add_link_mode(ks, advertising, 980 25000baseCR_Full); 981 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 982 983 ethtool_link_ksettings_add_link_mode(ks, supported, 984 10000baseCR_Full); 985 ethtool_link_ksettings_add_link_mode(ks, advertising, 986 10000baseCR_Full); 987 break; 988 default: 989 /* if we got here and link is up something bad is afoot */ 990 netdev_info(netdev, 991 "WARNING: Link is up but PHY type 0x%x is not recognized, or incorrect cable is in use\n", 992 hw_link_info->phy_type); 993 } 994 995 /* Now that we've worked out everything that could be supported by the 996 * current PHY type, get what is supported by the NVM and intersect 997 * them to get what is truly supported 998 */ 999 memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings)); 1000 i40e_phy_type_to_ethtool(pf, &cap_ksettings); 1001 ethtool_intersect_link_masks(ks, &cap_ksettings); 1002 1003 /* Set speed and duplex */ 1004 switch (link_speed) { 1005 case I40E_LINK_SPEED_40GB: 1006 ks->base.speed = SPEED_40000; 1007 break; 1008 case I40E_LINK_SPEED_25GB: 1009 ks->base.speed = SPEED_25000; 1010 break; 1011 case I40E_LINK_SPEED_20GB: 1012 ks->base.speed = SPEED_20000; 1013 break; 1014 case I40E_LINK_SPEED_10GB: 1015 ks->base.speed = SPEED_10000; 1016 break; 1017 case I40E_LINK_SPEED_5GB: 1018 ks->base.speed = SPEED_5000; 1019 break; 1020 case I40E_LINK_SPEED_2_5GB: 1021 ks->base.speed = SPEED_2500; 1022 break; 1023 case I40E_LINK_SPEED_1GB: 1024 ks->base.speed = SPEED_1000; 1025 break; 1026 case I40E_LINK_SPEED_100MB: 1027 ks->base.speed = SPEED_100; 1028 break; 1029 default: 1030 ks->base.speed = SPEED_UNKNOWN; 1031 break; 1032 } 1033 ks->base.duplex = DUPLEX_FULL; 1034 } 1035 1036 /** 1037 * i40e_get_settings_link_down - Get the Link settings for when link is down 1038 * @hw: hw structure 1039 * @ks: ethtool ksettings to fill in 1040 * @pf: pointer to physical function struct 1041 * 1042 * Reports link settings that can be determined when link is down 1043 **/ 1044 static void i40e_get_settings_link_down(struct i40e_hw *hw, 1045 struct ethtool_link_ksettings *ks, 1046 struct i40e_pf *pf) 1047 { 1048 /* link is down and the driver needs to fall back on 1049 * supported phy types to figure out what info to display 1050 */ 1051 i40e_phy_type_to_ethtool(pf, ks); 1052 1053 /* With no link speed and duplex are unknown */ 1054 ks->base.speed = SPEED_UNKNOWN; 1055 ks->base.duplex = DUPLEX_UNKNOWN; 1056 } 1057 1058 /** 1059 * i40e_get_link_ksettings - Get Link Speed and Duplex settings 1060 * @netdev: network interface device structure 1061 * @ks: ethtool ksettings 1062 * 1063 * Reports speed/duplex settings based on media_type 1064 **/ 1065 static int i40e_get_link_ksettings(struct net_device *netdev, 1066 struct ethtool_link_ksettings *ks) 1067 { 1068 struct i40e_netdev_priv *np = netdev_priv(netdev); 1069 struct i40e_pf *pf = np->vsi->back; 1070 struct i40e_hw *hw = &pf->hw; 1071 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1072 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 1073 1074 ethtool_link_ksettings_zero_link_mode(ks, supported); 1075 ethtool_link_ksettings_zero_link_mode(ks, advertising); 1076 1077 if (link_up) 1078 i40e_get_settings_link_up(hw, ks, netdev, pf); 1079 else 1080 i40e_get_settings_link_down(hw, ks, pf); 1081 1082 /* Now set the settings that don't rely on link being up/down */ 1083 /* Set autoneg settings */ 1084 ks->base.autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 1085 AUTONEG_ENABLE : AUTONEG_DISABLE); 1086 1087 /* Set media type settings */ 1088 switch (hw->phy.media_type) { 1089 case I40E_MEDIA_TYPE_BACKPLANE: 1090 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 1091 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane); 1092 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 1093 ethtool_link_ksettings_add_link_mode(ks, advertising, 1094 Backplane); 1095 ks->base.port = PORT_NONE; 1096 break; 1097 case I40E_MEDIA_TYPE_BASET: 1098 ethtool_link_ksettings_add_link_mode(ks, supported, TP); 1099 ethtool_link_ksettings_add_link_mode(ks, advertising, TP); 1100 ks->base.port = PORT_TP; 1101 break; 1102 case I40E_MEDIA_TYPE_DA: 1103 case I40E_MEDIA_TYPE_CX4: 1104 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1105 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 1106 ks->base.port = PORT_DA; 1107 break; 1108 case I40E_MEDIA_TYPE_FIBER: 1109 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1110 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 1111 ks->base.port = PORT_FIBRE; 1112 break; 1113 case I40E_MEDIA_TYPE_UNKNOWN: 1114 default: 1115 ks->base.port = PORT_OTHER; 1116 break; 1117 } 1118 1119 /* Set flow control settings */ 1120 ethtool_link_ksettings_add_link_mode(ks, supported, Pause); 1121 ethtool_link_ksettings_add_link_mode(ks, supported, Asym_Pause); 1122 1123 switch (hw->fc.requested_mode) { 1124 case I40E_FC_FULL: 1125 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1126 break; 1127 case I40E_FC_TX_PAUSE: 1128 ethtool_link_ksettings_add_link_mode(ks, advertising, 1129 Asym_Pause); 1130 break; 1131 case I40E_FC_RX_PAUSE: 1132 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1133 ethtool_link_ksettings_add_link_mode(ks, advertising, 1134 Asym_Pause); 1135 break; 1136 default: 1137 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause); 1138 ethtool_link_ksettings_del_link_mode(ks, advertising, 1139 Asym_Pause); 1140 break; 1141 } 1142 1143 return 0; 1144 } 1145 1146 #define I40E_LBIT_SIZE 8 1147 /** 1148 * i40e_speed_to_link_speed - Translate decimal speed to i40e_aq_link_speed 1149 * @speed: speed in decimal 1150 * @ks: ethtool ksettings 1151 * 1152 * Return i40e_aq_link_speed based on speed 1153 **/ 1154 static enum i40e_aq_link_speed 1155 i40e_speed_to_link_speed(__u32 speed, const struct ethtool_link_ksettings *ks) 1156 { 1157 enum i40e_aq_link_speed link_speed = I40E_LINK_SPEED_UNKNOWN; 1158 bool speed_changed = false; 1159 int i, j; 1160 1161 static const struct { 1162 __u32 speed; 1163 enum i40e_aq_link_speed link_speed; 1164 __u8 bit[I40E_LBIT_SIZE]; 1165 } i40e_speed_lut[] = { 1166 #define I40E_LBIT(mode) ETHTOOL_LINK_MODE_ ## mode ##_Full_BIT 1167 {SPEED_100, I40E_LINK_SPEED_100MB, {I40E_LBIT(100baseT)} }, 1168 {SPEED_1000, I40E_LINK_SPEED_1GB, 1169 {I40E_LBIT(1000baseT), I40E_LBIT(1000baseX), 1170 I40E_LBIT(1000baseKX)} }, 1171 {SPEED_10000, I40E_LINK_SPEED_10GB, 1172 {I40E_LBIT(10000baseT), I40E_LBIT(10000baseKR), 1173 I40E_LBIT(10000baseLR), I40E_LBIT(10000baseCR), 1174 I40E_LBIT(10000baseSR), I40E_LBIT(10000baseKX4)} }, 1175 1176 {SPEED_25000, I40E_LINK_SPEED_25GB, 1177 {I40E_LBIT(25000baseCR), I40E_LBIT(25000baseKR), 1178 I40E_LBIT(25000baseSR)} }, 1179 {SPEED_40000, I40E_LINK_SPEED_40GB, 1180 {I40E_LBIT(40000baseKR4), I40E_LBIT(40000baseCR4), 1181 I40E_LBIT(40000baseSR4), I40E_LBIT(40000baseLR4)} }, 1182 {SPEED_20000, I40E_LINK_SPEED_20GB, 1183 {I40E_LBIT(20000baseKR2)} }, 1184 {SPEED_2500, I40E_LINK_SPEED_2_5GB, {I40E_LBIT(2500baseT)} }, 1185 {SPEED_5000, I40E_LINK_SPEED_5GB, {I40E_LBIT(2500baseT)} } 1186 #undef I40E_LBIT 1187 }; 1188 1189 for (i = 0; i < ARRAY_SIZE(i40e_speed_lut); i++) { 1190 if (i40e_speed_lut[i].speed == speed) { 1191 for (j = 0; j < I40E_LBIT_SIZE; j++) { 1192 if (test_bit(i40e_speed_lut[i].bit[j], 1193 ks->link_modes.supported)) { 1194 speed_changed = true; 1195 break; 1196 } 1197 if (!i40e_speed_lut[i].bit[j]) 1198 break; 1199 } 1200 if (speed_changed) { 1201 link_speed = i40e_speed_lut[i].link_speed; 1202 break; 1203 } 1204 } 1205 } 1206 return link_speed; 1207 } 1208 1209 #undef I40E_LBIT_SIZE 1210 1211 /** 1212 * i40e_set_link_ksettings - Set Speed and Duplex 1213 * @netdev: network interface device structure 1214 * @ks: ethtool ksettings 1215 * 1216 * Set speed/duplex per media_types advertised/forced 1217 **/ 1218 static int i40e_set_link_ksettings(struct net_device *netdev, 1219 const struct ethtool_link_ksettings *ks) 1220 { 1221 struct i40e_netdev_priv *np = netdev_priv(netdev); 1222 struct i40e_aq_get_phy_abilities_resp abilities; 1223 struct ethtool_link_ksettings safe_ks; 1224 struct ethtool_link_ksettings copy_ks; 1225 struct i40e_aq_set_phy_config config; 1226 struct i40e_pf *pf = np->vsi->back; 1227 enum i40e_aq_link_speed link_speed; 1228 struct i40e_vsi *vsi = np->vsi; 1229 struct i40e_hw *hw = &pf->hw; 1230 bool autoneg_changed = false; 1231 i40e_status status = 0; 1232 int timeout = 50; 1233 int err = 0; 1234 __u32 speed; 1235 u8 autoneg; 1236 1237 /* Changing port settings is not supported if this isn't the 1238 * port's controlling PF 1239 */ 1240 if (hw->partition_id != 1) { 1241 i40e_partition_setting_complaint(pf); 1242 return -EOPNOTSUPP; 1243 } 1244 if (vsi != pf->vsi[pf->lan_vsi]) 1245 return -EOPNOTSUPP; 1246 if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET && 1247 hw->phy.media_type != I40E_MEDIA_TYPE_FIBER && 1248 hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE && 1249 hw->phy.media_type != I40E_MEDIA_TYPE_DA && 1250 hw->phy.link_info.link_info & I40E_AQ_LINK_UP) 1251 return -EOPNOTSUPP; 1252 if (hw->device_id == I40E_DEV_ID_KX_B || 1253 hw->device_id == I40E_DEV_ID_KX_C || 1254 hw->device_id == I40E_DEV_ID_20G_KR2 || 1255 hw->device_id == I40E_DEV_ID_20G_KR2_A || 1256 hw->device_id == I40E_DEV_ID_25G_B || 1257 hw->device_id == I40E_DEV_ID_KX_X722) { 1258 netdev_info(netdev, "Changing settings is not supported on backplane.\n"); 1259 return -EOPNOTSUPP; 1260 } 1261 1262 /* copy the ksettings to copy_ks to avoid modifying the origin */ 1263 memcpy(©_ks, ks, sizeof(struct ethtool_link_ksettings)); 1264 1265 /* save autoneg out of ksettings */ 1266 autoneg = copy_ks.base.autoneg; 1267 speed = copy_ks.base.speed; 1268 1269 /* get our own copy of the bits to check against */ 1270 memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings)); 1271 safe_ks.base.cmd = copy_ks.base.cmd; 1272 safe_ks.base.link_mode_masks_nwords = 1273 copy_ks.base.link_mode_masks_nwords; 1274 i40e_get_link_ksettings(netdev, &safe_ks); 1275 1276 /* Get link modes supported by hardware and check against modes 1277 * requested by the user. Return an error if unsupported mode was set. 1278 */ 1279 if (!bitmap_subset(copy_ks.link_modes.advertising, 1280 safe_ks.link_modes.supported, 1281 __ETHTOOL_LINK_MODE_MASK_NBITS)) 1282 return -EINVAL; 1283 1284 /* set autoneg back to what it currently is */ 1285 copy_ks.base.autoneg = safe_ks.base.autoneg; 1286 copy_ks.base.speed = safe_ks.base.speed; 1287 1288 /* If copy_ks.base and safe_ks.base are not the same now, then they are 1289 * trying to set something that we do not support. 1290 */ 1291 if (memcmp(©_ks.base, &safe_ks.base, 1292 sizeof(struct ethtool_link_settings))) 1293 return -EOPNOTSUPP; 1294 1295 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { 1296 timeout--; 1297 if (!timeout) 1298 return -EBUSY; 1299 usleep_range(1000, 2000); 1300 } 1301 1302 /* Get the current phy config */ 1303 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1304 NULL); 1305 if (status) { 1306 err = -EAGAIN; 1307 goto done; 1308 } 1309 1310 /* Copy abilities to config in case autoneg is not 1311 * set below 1312 */ 1313 memset(&config, 0, sizeof(struct i40e_aq_set_phy_config)); 1314 config.abilities = abilities.abilities; 1315 1316 /* Check autoneg */ 1317 if (autoneg == AUTONEG_ENABLE) { 1318 /* If autoneg was not already enabled */ 1319 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) { 1320 /* If autoneg is not supported, return error */ 1321 if (!ethtool_link_ksettings_test_link_mode(&safe_ks, 1322 supported, 1323 Autoneg)) { 1324 netdev_info(netdev, "Autoneg not supported on this phy\n"); 1325 err = -EINVAL; 1326 goto done; 1327 } 1328 /* Autoneg is allowed to change */ 1329 config.abilities = abilities.abilities | 1330 I40E_AQ_PHY_ENABLE_AN; 1331 autoneg_changed = true; 1332 } 1333 } else { 1334 /* If autoneg is currently enabled */ 1335 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) { 1336 /* If autoneg is supported 10GBASE_T is the only PHY 1337 * that can disable it, so otherwise return error 1338 */ 1339 if (ethtool_link_ksettings_test_link_mode(&safe_ks, 1340 supported, 1341 Autoneg) && 1342 hw->phy.media_type != I40E_MEDIA_TYPE_BASET) { 1343 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n"); 1344 err = -EINVAL; 1345 goto done; 1346 } 1347 /* Autoneg is allowed to change */ 1348 config.abilities = abilities.abilities & 1349 ~I40E_AQ_PHY_ENABLE_AN; 1350 autoneg_changed = true; 1351 } 1352 } 1353 1354 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1355 100baseT_Full)) 1356 config.link_speed |= I40E_LINK_SPEED_100MB; 1357 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1358 1000baseT_Full) || 1359 ethtool_link_ksettings_test_link_mode(ks, advertising, 1360 1000baseX_Full) || 1361 ethtool_link_ksettings_test_link_mode(ks, advertising, 1362 1000baseKX_Full)) 1363 config.link_speed |= I40E_LINK_SPEED_1GB; 1364 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1365 10000baseT_Full) || 1366 ethtool_link_ksettings_test_link_mode(ks, advertising, 1367 10000baseKX4_Full) || 1368 ethtool_link_ksettings_test_link_mode(ks, advertising, 1369 10000baseKR_Full) || 1370 ethtool_link_ksettings_test_link_mode(ks, advertising, 1371 10000baseCR_Full) || 1372 ethtool_link_ksettings_test_link_mode(ks, advertising, 1373 10000baseSR_Full) || 1374 ethtool_link_ksettings_test_link_mode(ks, advertising, 1375 10000baseLR_Full)) 1376 config.link_speed |= I40E_LINK_SPEED_10GB; 1377 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1378 2500baseT_Full)) 1379 config.link_speed |= I40E_LINK_SPEED_2_5GB; 1380 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1381 5000baseT_Full)) 1382 config.link_speed |= I40E_LINK_SPEED_5GB; 1383 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1384 20000baseKR2_Full)) 1385 config.link_speed |= I40E_LINK_SPEED_20GB; 1386 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1387 25000baseCR_Full) || 1388 ethtool_link_ksettings_test_link_mode(ks, advertising, 1389 25000baseKR_Full) || 1390 ethtool_link_ksettings_test_link_mode(ks, advertising, 1391 25000baseSR_Full)) 1392 config.link_speed |= I40E_LINK_SPEED_25GB; 1393 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1394 40000baseKR4_Full) || 1395 ethtool_link_ksettings_test_link_mode(ks, advertising, 1396 40000baseCR4_Full) || 1397 ethtool_link_ksettings_test_link_mode(ks, advertising, 1398 40000baseSR4_Full) || 1399 ethtool_link_ksettings_test_link_mode(ks, advertising, 1400 40000baseLR4_Full)) 1401 config.link_speed |= I40E_LINK_SPEED_40GB; 1402 1403 /* Autonegotiation must be disabled to change speed */ 1404 if ((speed != SPEED_UNKNOWN && safe_ks.base.speed != speed) && 1405 (autoneg == AUTONEG_DISABLE || 1406 (safe_ks.base.autoneg == AUTONEG_DISABLE && !autoneg_changed))) { 1407 link_speed = i40e_speed_to_link_speed(speed, ks); 1408 if (link_speed == I40E_LINK_SPEED_UNKNOWN) { 1409 netdev_info(netdev, "Given speed is not supported\n"); 1410 err = -EOPNOTSUPP; 1411 goto done; 1412 } else { 1413 config.link_speed = link_speed; 1414 } 1415 } else { 1416 if (safe_ks.base.speed != speed) { 1417 netdev_info(netdev, 1418 "Unable to set speed, disable autoneg\n"); 1419 err = -EOPNOTSUPP; 1420 goto done; 1421 } 1422 } 1423 1424 /* If speed didn't get set, set it to what it currently is. 1425 * This is needed because if advertise is 0 (as it is when autoneg 1426 * is disabled) then speed won't get set. 1427 */ 1428 if (!config.link_speed) 1429 config.link_speed = abilities.link_speed; 1430 if (autoneg_changed || abilities.link_speed != config.link_speed) { 1431 /* copy over the rest of the abilities */ 1432 config.phy_type = abilities.phy_type; 1433 config.phy_type_ext = abilities.phy_type_ext; 1434 config.eee_capability = abilities.eee_capability; 1435 config.eeer = abilities.eeer_val; 1436 config.low_power_ctrl = abilities.d3_lpan; 1437 config.fec_config = abilities.fec_cfg_curr_mod_ext_info & 1438 I40E_AQ_PHY_FEC_CONFIG_MASK; 1439 1440 /* save the requested speeds */ 1441 hw->phy.link_info.requested_speeds = config.link_speed; 1442 /* set link and auto negotiation so changes take effect */ 1443 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 1444 /* If link is up put link down */ 1445 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) { 1446 /* Tell the OS link is going down, the link will go 1447 * back up when fw says it is ready asynchronously 1448 */ 1449 i40e_print_link_message(vsi, false); 1450 netif_carrier_off(netdev); 1451 netif_tx_stop_all_queues(netdev); 1452 } 1453 1454 /* make the aq call */ 1455 status = i40e_aq_set_phy_config(hw, &config, NULL); 1456 if (status) { 1457 netdev_info(netdev, 1458 "Set phy config failed, err %s aq_err %s\n", 1459 i40e_stat_str(hw, status), 1460 i40e_aq_str(hw, hw->aq.asq_last_status)); 1461 err = -EAGAIN; 1462 goto done; 1463 } 1464 1465 status = i40e_update_link_info(hw); 1466 if (status) 1467 netdev_dbg(netdev, 1468 "Updating link info failed with err %s aq_err %s\n", 1469 i40e_stat_str(hw, status), 1470 i40e_aq_str(hw, hw->aq.asq_last_status)); 1471 1472 } else { 1473 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n"); 1474 } 1475 1476 done: 1477 clear_bit(__I40E_CONFIG_BUSY, pf->state); 1478 1479 return err; 1480 } 1481 1482 static int i40e_set_fec_cfg(struct net_device *netdev, u8 fec_cfg) 1483 { 1484 struct i40e_netdev_priv *np = netdev_priv(netdev); 1485 struct i40e_aq_get_phy_abilities_resp abilities; 1486 struct i40e_pf *pf = np->vsi->back; 1487 struct i40e_hw *hw = &pf->hw; 1488 i40e_status status = 0; 1489 u32 flags = 0; 1490 int err = 0; 1491 1492 flags = READ_ONCE(pf->flags); 1493 i40e_set_fec_in_flags(fec_cfg, &flags); 1494 1495 /* Get the current phy config */ 1496 memset(&abilities, 0, sizeof(abilities)); 1497 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1498 NULL); 1499 if (status) { 1500 err = -EAGAIN; 1501 goto done; 1502 } 1503 1504 if (abilities.fec_cfg_curr_mod_ext_info != fec_cfg) { 1505 struct i40e_aq_set_phy_config config; 1506 1507 memset(&config, 0, sizeof(config)); 1508 config.phy_type = abilities.phy_type; 1509 config.abilities = abilities.abilities | 1510 I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 1511 config.phy_type_ext = abilities.phy_type_ext; 1512 config.link_speed = abilities.link_speed; 1513 config.eee_capability = abilities.eee_capability; 1514 config.eeer = abilities.eeer_val; 1515 config.low_power_ctrl = abilities.d3_lpan; 1516 config.fec_config = fec_cfg & I40E_AQ_PHY_FEC_CONFIG_MASK; 1517 status = i40e_aq_set_phy_config(hw, &config, NULL); 1518 if (status) { 1519 netdev_info(netdev, 1520 "Set phy config failed, err %s aq_err %s\n", 1521 i40e_stat_str(hw, status), 1522 i40e_aq_str(hw, hw->aq.asq_last_status)); 1523 err = -EAGAIN; 1524 goto done; 1525 } 1526 pf->flags = flags; 1527 status = i40e_update_link_info(hw); 1528 if (status) 1529 /* debug level message only due to relation to the link 1530 * itself rather than to the FEC settings 1531 * (e.g. no physical connection etc.) 1532 */ 1533 netdev_dbg(netdev, 1534 "Updating link info failed with err %s aq_err %s\n", 1535 i40e_stat_str(hw, status), 1536 i40e_aq_str(hw, hw->aq.asq_last_status)); 1537 } 1538 1539 done: 1540 return err; 1541 } 1542 1543 static int i40e_get_fec_param(struct net_device *netdev, 1544 struct ethtool_fecparam *fecparam) 1545 { 1546 struct i40e_netdev_priv *np = netdev_priv(netdev); 1547 struct i40e_aq_get_phy_abilities_resp abilities; 1548 struct i40e_pf *pf = np->vsi->back; 1549 struct i40e_hw *hw = &pf->hw; 1550 i40e_status status = 0; 1551 int err = 0; 1552 u8 fec_cfg; 1553 1554 /* Get the current phy config */ 1555 memset(&abilities, 0, sizeof(abilities)); 1556 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1557 NULL); 1558 if (status) { 1559 err = -EAGAIN; 1560 goto done; 1561 } 1562 1563 fecparam->fec = 0; 1564 fec_cfg = abilities.fec_cfg_curr_mod_ext_info; 1565 if (fec_cfg & I40E_AQ_SET_FEC_AUTO) 1566 fecparam->fec |= ETHTOOL_FEC_AUTO; 1567 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_RS | 1568 I40E_AQ_SET_FEC_ABILITY_RS)) 1569 fecparam->fec |= ETHTOOL_FEC_RS; 1570 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_KR | 1571 I40E_AQ_SET_FEC_ABILITY_KR)) 1572 fecparam->fec |= ETHTOOL_FEC_BASER; 1573 if (fec_cfg == 0) 1574 fecparam->fec |= ETHTOOL_FEC_OFF; 1575 1576 if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_KR_ENA) 1577 fecparam->active_fec = ETHTOOL_FEC_BASER; 1578 else if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_RS_ENA) 1579 fecparam->active_fec = ETHTOOL_FEC_RS; 1580 else 1581 fecparam->active_fec = ETHTOOL_FEC_OFF; 1582 done: 1583 return err; 1584 } 1585 1586 static int i40e_set_fec_param(struct net_device *netdev, 1587 struct ethtool_fecparam *fecparam) 1588 { 1589 struct i40e_netdev_priv *np = netdev_priv(netdev); 1590 struct i40e_pf *pf = np->vsi->back; 1591 struct i40e_hw *hw = &pf->hw; 1592 u8 fec_cfg = 0; 1593 1594 if (hw->device_id != I40E_DEV_ID_25G_SFP28 && 1595 hw->device_id != I40E_DEV_ID_25G_B && 1596 hw->device_id != I40E_DEV_ID_KX_X722) 1597 return -EPERM; 1598 1599 if (hw->mac.type == I40E_MAC_X722 && 1600 !(hw->flags & I40E_HW_FLAG_X722_FEC_REQUEST_CAPABLE)) { 1601 netdev_err(netdev, "Setting FEC encoding not supported by firmware. Please update the NVM image.\n"); 1602 return -EOPNOTSUPP; 1603 } 1604 1605 switch (fecparam->fec) { 1606 case ETHTOOL_FEC_AUTO: 1607 fec_cfg = I40E_AQ_SET_FEC_AUTO; 1608 break; 1609 case ETHTOOL_FEC_RS: 1610 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS | 1611 I40E_AQ_SET_FEC_ABILITY_RS); 1612 break; 1613 case ETHTOOL_FEC_BASER: 1614 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR | 1615 I40E_AQ_SET_FEC_ABILITY_KR); 1616 break; 1617 case ETHTOOL_FEC_OFF: 1618 case ETHTOOL_FEC_NONE: 1619 fec_cfg = 0; 1620 break; 1621 default: 1622 dev_warn(&pf->pdev->dev, "Unsupported FEC mode: %d", 1623 fecparam->fec); 1624 return -EINVAL; 1625 } 1626 1627 return i40e_set_fec_cfg(netdev, fec_cfg); 1628 } 1629 1630 static int i40e_nway_reset(struct net_device *netdev) 1631 { 1632 /* restart autonegotiation */ 1633 struct i40e_netdev_priv *np = netdev_priv(netdev); 1634 struct i40e_pf *pf = np->vsi->back; 1635 struct i40e_hw *hw = &pf->hw; 1636 bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP; 1637 i40e_status ret = 0; 1638 1639 ret = i40e_aq_set_link_restart_an(hw, link_up, NULL); 1640 if (ret) { 1641 netdev_info(netdev, "link restart failed, err %s aq_err %s\n", 1642 i40e_stat_str(hw, ret), 1643 i40e_aq_str(hw, hw->aq.asq_last_status)); 1644 return -EIO; 1645 } 1646 1647 return 0; 1648 } 1649 1650 /** 1651 * i40e_get_pauseparam - Get Flow Control status 1652 * @netdev: netdevice structure 1653 * @pause: buffer to return pause parameters 1654 * 1655 * Return tx/rx-pause status 1656 **/ 1657 static void i40e_get_pauseparam(struct net_device *netdev, 1658 struct ethtool_pauseparam *pause) 1659 { 1660 struct i40e_netdev_priv *np = netdev_priv(netdev); 1661 struct i40e_pf *pf = np->vsi->back; 1662 struct i40e_hw *hw = &pf->hw; 1663 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1664 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 1665 1666 pause->autoneg = 1667 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 1668 AUTONEG_ENABLE : AUTONEG_DISABLE); 1669 1670 /* PFC enabled so report LFC as off */ 1671 if (dcbx_cfg->pfc.pfcenable) { 1672 pause->rx_pause = 0; 1673 pause->tx_pause = 0; 1674 return; 1675 } 1676 1677 if (hw->fc.current_mode == I40E_FC_RX_PAUSE) { 1678 pause->rx_pause = 1; 1679 } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) { 1680 pause->tx_pause = 1; 1681 } else if (hw->fc.current_mode == I40E_FC_FULL) { 1682 pause->rx_pause = 1; 1683 pause->tx_pause = 1; 1684 } 1685 } 1686 1687 /** 1688 * i40e_set_pauseparam - Set Flow Control parameter 1689 * @netdev: network interface device structure 1690 * @pause: return tx/rx flow control status 1691 **/ 1692 static int i40e_set_pauseparam(struct net_device *netdev, 1693 struct ethtool_pauseparam *pause) 1694 { 1695 struct i40e_netdev_priv *np = netdev_priv(netdev); 1696 struct i40e_pf *pf = np->vsi->back; 1697 struct i40e_vsi *vsi = np->vsi; 1698 struct i40e_hw *hw = &pf->hw; 1699 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1700 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 1701 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 1702 i40e_status status; 1703 u8 aq_failures; 1704 int err = 0; 1705 u32 is_an; 1706 1707 /* Changing the port's flow control is not supported if this isn't the 1708 * port's controlling PF 1709 */ 1710 if (hw->partition_id != 1) { 1711 i40e_partition_setting_complaint(pf); 1712 return -EOPNOTSUPP; 1713 } 1714 1715 if (vsi != pf->vsi[pf->lan_vsi]) 1716 return -EOPNOTSUPP; 1717 1718 is_an = hw_link_info->an_info & I40E_AQ_AN_COMPLETED; 1719 if (pause->autoneg != is_an) { 1720 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n"); 1721 return -EOPNOTSUPP; 1722 } 1723 1724 /* If we have link and don't have autoneg */ 1725 if (!test_bit(__I40E_DOWN, pf->state) && !is_an) { 1726 /* Send message that it might not necessarily work*/ 1727 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n"); 1728 } 1729 1730 if (dcbx_cfg->pfc.pfcenable) { 1731 netdev_info(netdev, 1732 "Priority flow control enabled. Cannot set link flow control.\n"); 1733 return -EOPNOTSUPP; 1734 } 1735 1736 if (pause->rx_pause && pause->tx_pause) 1737 hw->fc.requested_mode = I40E_FC_FULL; 1738 else if (pause->rx_pause && !pause->tx_pause) 1739 hw->fc.requested_mode = I40E_FC_RX_PAUSE; 1740 else if (!pause->rx_pause && pause->tx_pause) 1741 hw->fc.requested_mode = I40E_FC_TX_PAUSE; 1742 else if (!pause->rx_pause && !pause->tx_pause) 1743 hw->fc.requested_mode = I40E_FC_NONE; 1744 else 1745 return -EINVAL; 1746 1747 /* Tell the OS link is going down, the link will go back up when fw 1748 * says it is ready asynchronously 1749 */ 1750 i40e_print_link_message(vsi, false); 1751 netif_carrier_off(netdev); 1752 netif_tx_stop_all_queues(netdev); 1753 1754 /* Set the fc mode and only restart an if link is up*/ 1755 status = i40e_set_fc(hw, &aq_failures, link_up); 1756 1757 if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) { 1758 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n", 1759 i40e_stat_str(hw, status), 1760 i40e_aq_str(hw, hw->aq.asq_last_status)); 1761 err = -EAGAIN; 1762 } 1763 if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) { 1764 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n", 1765 i40e_stat_str(hw, status), 1766 i40e_aq_str(hw, hw->aq.asq_last_status)); 1767 err = -EAGAIN; 1768 } 1769 if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) { 1770 netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n", 1771 i40e_stat_str(hw, status), 1772 i40e_aq_str(hw, hw->aq.asq_last_status)); 1773 err = -EAGAIN; 1774 } 1775 1776 if (!test_bit(__I40E_DOWN, pf->state) && is_an) { 1777 /* Give it a little more time to try to come back */ 1778 msleep(75); 1779 if (!test_bit(__I40E_DOWN, pf->state)) 1780 return i40e_nway_reset(netdev); 1781 } 1782 1783 return err; 1784 } 1785 1786 static u32 i40e_get_msglevel(struct net_device *netdev) 1787 { 1788 struct i40e_netdev_priv *np = netdev_priv(netdev); 1789 struct i40e_pf *pf = np->vsi->back; 1790 u32 debug_mask = pf->hw.debug_mask; 1791 1792 if (debug_mask) 1793 netdev_info(netdev, "i40e debug_mask: 0x%08X\n", debug_mask); 1794 1795 return pf->msg_enable; 1796 } 1797 1798 static void i40e_set_msglevel(struct net_device *netdev, u32 data) 1799 { 1800 struct i40e_netdev_priv *np = netdev_priv(netdev); 1801 struct i40e_pf *pf = np->vsi->back; 1802 1803 if (I40E_DEBUG_USER & data) 1804 pf->hw.debug_mask = data; 1805 else 1806 pf->msg_enable = data; 1807 } 1808 1809 static int i40e_get_regs_len(struct net_device *netdev) 1810 { 1811 int reg_count = 0; 1812 int i; 1813 1814 for (i = 0; i40e_reg_list[i].offset != 0; i++) 1815 reg_count += i40e_reg_list[i].elements; 1816 1817 return reg_count * sizeof(u32); 1818 } 1819 1820 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs, 1821 void *p) 1822 { 1823 struct i40e_netdev_priv *np = netdev_priv(netdev); 1824 struct i40e_pf *pf = np->vsi->back; 1825 struct i40e_hw *hw = &pf->hw; 1826 u32 *reg_buf = p; 1827 unsigned int i, j, ri; 1828 u32 reg; 1829 1830 /* Tell ethtool which driver-version-specific regs output we have. 1831 * 1832 * At some point, if we have ethtool doing special formatting of 1833 * this data, it will rely on this version number to know how to 1834 * interpret things. Hence, this needs to be updated if/when the 1835 * diags register table is changed. 1836 */ 1837 regs->version = 1; 1838 1839 /* loop through the diags reg table for what to print */ 1840 ri = 0; 1841 for (i = 0; i40e_reg_list[i].offset != 0; i++) { 1842 for (j = 0; j < i40e_reg_list[i].elements; j++) { 1843 reg = i40e_reg_list[i].offset 1844 + (j * i40e_reg_list[i].stride); 1845 reg_buf[ri++] = rd32(hw, reg); 1846 } 1847 } 1848 1849 } 1850 1851 static int i40e_get_eeprom(struct net_device *netdev, 1852 struct ethtool_eeprom *eeprom, u8 *bytes) 1853 { 1854 struct i40e_netdev_priv *np = netdev_priv(netdev); 1855 struct i40e_hw *hw = &np->vsi->back->hw; 1856 struct i40e_pf *pf = np->vsi->back; 1857 int ret_val = 0, len, offset; 1858 u8 *eeprom_buff; 1859 u16 i, sectors; 1860 bool last; 1861 u32 magic; 1862 1863 #define I40E_NVM_SECTOR_SIZE 4096 1864 if (eeprom->len == 0) 1865 return -EINVAL; 1866 1867 /* check for NVMUpdate access method */ 1868 magic = hw->vendor_id | (hw->device_id << 16); 1869 if (eeprom->magic && eeprom->magic != magic) { 1870 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1871 int errno = 0; 1872 1873 /* make sure it is the right magic for NVMUpdate */ 1874 if ((eeprom->magic >> 16) != hw->device_id) 1875 errno = -EINVAL; 1876 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 1877 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 1878 errno = -EBUSY; 1879 else 1880 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1881 1882 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1883 dev_info(&pf->pdev->dev, 1884 "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1885 ret_val, hw->aq.asq_last_status, errno, 1886 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1887 cmd->offset, cmd->data_size); 1888 1889 return errno; 1890 } 1891 1892 /* normal ethtool get_eeprom support */ 1893 eeprom->magic = hw->vendor_id | (hw->device_id << 16); 1894 1895 eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL); 1896 if (!eeprom_buff) 1897 return -ENOMEM; 1898 1899 ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ); 1900 if (ret_val) { 1901 dev_info(&pf->pdev->dev, 1902 "Failed Acquiring NVM resource for read err=%d status=0x%x\n", 1903 ret_val, hw->aq.asq_last_status); 1904 goto free_buff; 1905 } 1906 1907 sectors = eeprom->len / I40E_NVM_SECTOR_SIZE; 1908 sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0; 1909 len = I40E_NVM_SECTOR_SIZE; 1910 last = false; 1911 for (i = 0; i < sectors; i++) { 1912 if (i == (sectors - 1)) { 1913 len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i); 1914 last = true; 1915 } 1916 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i), 1917 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len, 1918 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i), 1919 last, NULL); 1920 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) { 1921 dev_info(&pf->pdev->dev, 1922 "read NVM failed, invalid offset 0x%x\n", 1923 offset); 1924 break; 1925 } else if (ret_val && 1926 hw->aq.asq_last_status == I40E_AQ_RC_EACCES) { 1927 dev_info(&pf->pdev->dev, 1928 "read NVM failed, access, offset 0x%x\n", 1929 offset); 1930 break; 1931 } else if (ret_val) { 1932 dev_info(&pf->pdev->dev, 1933 "read NVM failed offset %d err=%d status=0x%x\n", 1934 offset, ret_val, hw->aq.asq_last_status); 1935 break; 1936 } 1937 } 1938 1939 i40e_release_nvm(hw); 1940 memcpy(bytes, (u8 *)eeprom_buff, eeprom->len); 1941 free_buff: 1942 kfree(eeprom_buff); 1943 return ret_val; 1944 } 1945 1946 static int i40e_get_eeprom_len(struct net_device *netdev) 1947 { 1948 struct i40e_netdev_priv *np = netdev_priv(netdev); 1949 struct i40e_hw *hw = &np->vsi->back->hw; 1950 u32 val; 1951 1952 #define X722_EEPROM_SCOPE_LIMIT 0x5B9FFF 1953 if (hw->mac.type == I40E_MAC_X722) { 1954 val = X722_EEPROM_SCOPE_LIMIT + 1; 1955 return val; 1956 } 1957 val = (rd32(hw, I40E_GLPCI_LBARCTRL) 1958 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK) 1959 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT; 1960 /* register returns value in power of 2, 64Kbyte chunks. */ 1961 val = (64 * 1024) * BIT(val); 1962 return val; 1963 } 1964 1965 static int i40e_set_eeprom(struct net_device *netdev, 1966 struct ethtool_eeprom *eeprom, u8 *bytes) 1967 { 1968 struct i40e_netdev_priv *np = netdev_priv(netdev); 1969 struct i40e_hw *hw = &np->vsi->back->hw; 1970 struct i40e_pf *pf = np->vsi->back; 1971 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1972 int ret_val = 0; 1973 int errno = 0; 1974 u32 magic; 1975 1976 /* normal ethtool set_eeprom is not supported */ 1977 magic = hw->vendor_id | (hw->device_id << 16); 1978 if (eeprom->magic == magic) 1979 errno = -EOPNOTSUPP; 1980 /* check for NVMUpdate access method */ 1981 else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id) 1982 errno = -EINVAL; 1983 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 1984 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 1985 errno = -EBUSY; 1986 else 1987 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1988 1989 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1990 dev_info(&pf->pdev->dev, 1991 "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1992 ret_val, hw->aq.asq_last_status, errno, 1993 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1994 cmd->offset, cmd->data_size); 1995 1996 return errno; 1997 } 1998 1999 static void i40e_get_drvinfo(struct net_device *netdev, 2000 struct ethtool_drvinfo *drvinfo) 2001 { 2002 struct i40e_netdev_priv *np = netdev_priv(netdev); 2003 struct i40e_vsi *vsi = np->vsi; 2004 struct i40e_pf *pf = vsi->back; 2005 2006 strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver)); 2007 strlcpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw), 2008 sizeof(drvinfo->fw_version)); 2009 strlcpy(drvinfo->bus_info, pci_name(pf->pdev), 2010 sizeof(drvinfo->bus_info)); 2011 drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN; 2012 if (pf->hw.pf_id == 0) 2013 drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN; 2014 } 2015 2016 static void i40e_get_ringparam(struct net_device *netdev, 2017 struct ethtool_ringparam *ring, 2018 struct kernel_ethtool_ringparam *kernel_ring, 2019 struct netlink_ext_ack *extack) 2020 { 2021 struct i40e_netdev_priv *np = netdev_priv(netdev); 2022 struct i40e_pf *pf = np->vsi->back; 2023 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; 2024 2025 ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS; 2026 ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS; 2027 ring->rx_mini_max_pending = 0; 2028 ring->rx_jumbo_max_pending = 0; 2029 ring->rx_pending = vsi->rx_rings[0]->count; 2030 ring->tx_pending = vsi->tx_rings[0]->count; 2031 ring->rx_mini_pending = 0; 2032 ring->rx_jumbo_pending = 0; 2033 } 2034 2035 static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index) 2036 { 2037 if (i40e_enabled_xdp_vsi(vsi)) { 2038 return index < vsi->num_queue_pairs || 2039 (index >= vsi->alloc_queue_pairs && 2040 index < vsi->alloc_queue_pairs + vsi->num_queue_pairs); 2041 } 2042 2043 return index < vsi->num_queue_pairs; 2044 } 2045 2046 static int i40e_set_ringparam(struct net_device *netdev, 2047 struct ethtool_ringparam *ring, 2048 struct kernel_ethtool_ringparam *kernel_ring, 2049 struct netlink_ext_ack *extack) 2050 { 2051 struct i40e_ring *tx_rings = NULL, *rx_rings = NULL; 2052 struct i40e_netdev_priv *np = netdev_priv(netdev); 2053 struct i40e_hw *hw = &np->vsi->back->hw; 2054 struct i40e_vsi *vsi = np->vsi; 2055 struct i40e_pf *pf = vsi->back; 2056 u32 new_rx_count, new_tx_count; 2057 u16 tx_alloc_queue_pairs; 2058 int timeout = 50; 2059 int i, err = 0; 2060 2061 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) 2062 return -EINVAL; 2063 2064 if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS || 2065 ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS || 2066 ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS || 2067 ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) { 2068 netdev_info(netdev, 2069 "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n", 2070 ring->tx_pending, ring->rx_pending, 2071 I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS); 2072 return -EINVAL; 2073 } 2074 2075 new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 2076 new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 2077 2078 /* if nothing to do return success */ 2079 if ((new_tx_count == vsi->tx_rings[0]->count) && 2080 (new_rx_count == vsi->rx_rings[0]->count)) 2081 return 0; 2082 2083 /* If there is a AF_XDP page pool attached to any of Rx rings, 2084 * disallow changing the number of descriptors -- regardless 2085 * if the netdev is running or not. 2086 */ 2087 if (i40e_xsk_any_rx_ring_enabled(vsi)) 2088 return -EBUSY; 2089 2090 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { 2091 timeout--; 2092 if (!timeout) 2093 return -EBUSY; 2094 usleep_range(1000, 2000); 2095 } 2096 2097 if (!netif_running(vsi->netdev)) { 2098 /* simple case - set for the next time the netdev is started */ 2099 for (i = 0; i < vsi->num_queue_pairs; i++) { 2100 vsi->tx_rings[i]->count = new_tx_count; 2101 vsi->rx_rings[i]->count = new_rx_count; 2102 if (i40e_enabled_xdp_vsi(vsi)) 2103 vsi->xdp_rings[i]->count = new_tx_count; 2104 } 2105 vsi->num_tx_desc = new_tx_count; 2106 vsi->num_rx_desc = new_rx_count; 2107 goto done; 2108 } 2109 2110 /* We can't just free everything and then setup again, 2111 * because the ISRs in MSI-X mode get passed pointers 2112 * to the Tx and Rx ring structs. 2113 */ 2114 2115 /* alloc updated Tx and XDP Tx resources */ 2116 tx_alloc_queue_pairs = vsi->alloc_queue_pairs * 2117 (i40e_enabled_xdp_vsi(vsi) ? 2 : 1); 2118 if (new_tx_count != vsi->tx_rings[0]->count) { 2119 netdev_info(netdev, 2120 "Changing Tx descriptor count from %d to %d.\n", 2121 vsi->tx_rings[0]->count, new_tx_count); 2122 tx_rings = kcalloc(tx_alloc_queue_pairs, 2123 sizeof(struct i40e_ring), GFP_KERNEL); 2124 if (!tx_rings) { 2125 err = -ENOMEM; 2126 goto done; 2127 } 2128 2129 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2130 if (!i40e_active_tx_ring_index(vsi, i)) 2131 continue; 2132 2133 tx_rings[i] = *vsi->tx_rings[i]; 2134 tx_rings[i].count = new_tx_count; 2135 /* the desc and bi pointers will be reallocated in the 2136 * setup call 2137 */ 2138 tx_rings[i].desc = NULL; 2139 tx_rings[i].rx_bi = NULL; 2140 err = i40e_setup_tx_descriptors(&tx_rings[i]); 2141 if (err) { 2142 while (i) { 2143 i--; 2144 if (!i40e_active_tx_ring_index(vsi, i)) 2145 continue; 2146 i40e_free_tx_resources(&tx_rings[i]); 2147 } 2148 kfree(tx_rings); 2149 tx_rings = NULL; 2150 2151 goto done; 2152 } 2153 } 2154 } 2155 2156 /* alloc updated Rx resources */ 2157 if (new_rx_count != vsi->rx_rings[0]->count) { 2158 netdev_info(netdev, 2159 "Changing Rx descriptor count from %d to %d\n", 2160 vsi->rx_rings[0]->count, new_rx_count); 2161 rx_rings = kcalloc(vsi->alloc_queue_pairs, 2162 sizeof(struct i40e_ring), GFP_KERNEL); 2163 if (!rx_rings) { 2164 err = -ENOMEM; 2165 goto free_tx; 2166 } 2167 2168 for (i = 0; i < vsi->num_queue_pairs; i++) { 2169 u16 unused; 2170 2171 /* clone ring and setup updated count */ 2172 rx_rings[i] = *vsi->rx_rings[i]; 2173 rx_rings[i].count = new_rx_count; 2174 /* the desc and bi pointers will be reallocated in the 2175 * setup call 2176 */ 2177 rx_rings[i].desc = NULL; 2178 rx_rings[i].rx_bi = NULL; 2179 /* Clear cloned XDP RX-queue info before setup call */ 2180 memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq)); 2181 /* this is to allow wr32 to have something to write to 2182 * during early allocation of Rx buffers 2183 */ 2184 rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS; 2185 err = i40e_setup_rx_descriptors(&rx_rings[i]); 2186 if (err) 2187 goto rx_unwind; 2188 err = i40e_alloc_rx_bi(&rx_rings[i]); 2189 if (err) 2190 goto rx_unwind; 2191 2192 /* now allocate the Rx buffers to make sure the OS 2193 * has enough memory, any failure here means abort 2194 */ 2195 unused = I40E_DESC_UNUSED(&rx_rings[i]); 2196 err = i40e_alloc_rx_buffers(&rx_rings[i], unused); 2197 rx_unwind: 2198 if (err) { 2199 do { 2200 i40e_free_rx_resources(&rx_rings[i]); 2201 } while (i--); 2202 kfree(rx_rings); 2203 rx_rings = NULL; 2204 2205 goto free_tx; 2206 } 2207 } 2208 } 2209 2210 /* Bring interface down, copy in the new ring info, 2211 * then restore the interface 2212 */ 2213 i40e_down(vsi); 2214 2215 if (tx_rings) { 2216 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2217 if (i40e_active_tx_ring_index(vsi, i)) { 2218 i40e_free_tx_resources(vsi->tx_rings[i]); 2219 *vsi->tx_rings[i] = tx_rings[i]; 2220 } 2221 } 2222 kfree(tx_rings); 2223 tx_rings = NULL; 2224 } 2225 2226 if (rx_rings) { 2227 for (i = 0; i < vsi->num_queue_pairs; i++) { 2228 i40e_free_rx_resources(vsi->rx_rings[i]); 2229 /* get the real tail offset */ 2230 rx_rings[i].tail = vsi->rx_rings[i]->tail; 2231 /* this is to fake out the allocation routine 2232 * into thinking it has to realloc everything 2233 * but the recycling logic will let us re-use 2234 * the buffers allocated above 2235 */ 2236 rx_rings[i].next_to_use = 0; 2237 rx_rings[i].next_to_clean = 0; 2238 rx_rings[i].next_to_alloc = 0; 2239 /* do a struct copy */ 2240 *vsi->rx_rings[i] = rx_rings[i]; 2241 } 2242 kfree(rx_rings); 2243 rx_rings = NULL; 2244 } 2245 2246 vsi->num_tx_desc = new_tx_count; 2247 vsi->num_rx_desc = new_rx_count; 2248 i40e_up(vsi); 2249 2250 free_tx: 2251 /* error cleanup if the Rx allocations failed after getting Tx */ 2252 if (tx_rings) { 2253 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2254 if (i40e_active_tx_ring_index(vsi, i)) 2255 i40e_free_tx_resources(vsi->tx_rings[i]); 2256 } 2257 kfree(tx_rings); 2258 tx_rings = NULL; 2259 } 2260 2261 done: 2262 clear_bit(__I40E_CONFIG_BUSY, pf->state); 2263 2264 return err; 2265 } 2266 2267 /** 2268 * i40e_get_stats_count - return the stats count for a device 2269 * @netdev: the netdev to return the count for 2270 * 2271 * Returns the total number of statistics for this netdev. Note that even 2272 * though this is a function, it is required that the count for a specific 2273 * netdev must never change. Basing the count on static values such as the 2274 * maximum number of queues or the device type is ok. However, the API for 2275 * obtaining stats is *not* safe against changes based on non-static 2276 * values such as the *current* number of queues, or runtime flags. 2277 * 2278 * If a statistic is not always enabled, return it as part of the count 2279 * anyways, always return its string, and report its value as zero. 2280 **/ 2281 static int i40e_get_stats_count(struct net_device *netdev) 2282 { 2283 struct i40e_netdev_priv *np = netdev_priv(netdev); 2284 struct i40e_vsi *vsi = np->vsi; 2285 struct i40e_pf *pf = vsi->back; 2286 int stats_len; 2287 2288 if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1) 2289 stats_len = I40E_PF_STATS_LEN; 2290 else 2291 stats_len = I40E_VSI_STATS_LEN; 2292 2293 /* The number of stats reported for a given net_device must remain 2294 * constant throughout the life of that device. 2295 * 2296 * This is because the API for obtaining the size, strings, and stats 2297 * is spread out over three separate ethtool ioctls. There is no safe 2298 * way to lock the number of stats across these calls, so we must 2299 * assume that they will never change. 2300 * 2301 * Due to this, we report the maximum number of queues, even if not 2302 * every queue is currently configured. Since we always allocate 2303 * queues in pairs, we'll just use netdev->num_tx_queues * 2. This 2304 * works because the num_tx_queues is set at device creation and never 2305 * changes. 2306 */ 2307 stats_len += I40E_QUEUE_STATS_LEN * 2 * netdev->num_tx_queues; 2308 2309 return stats_len; 2310 } 2311 2312 static int i40e_get_sset_count(struct net_device *netdev, int sset) 2313 { 2314 struct i40e_netdev_priv *np = netdev_priv(netdev); 2315 struct i40e_vsi *vsi = np->vsi; 2316 struct i40e_pf *pf = vsi->back; 2317 2318 switch (sset) { 2319 case ETH_SS_TEST: 2320 return I40E_TEST_LEN; 2321 case ETH_SS_STATS: 2322 return i40e_get_stats_count(netdev); 2323 case ETH_SS_PRIV_FLAGS: 2324 return I40E_PRIV_FLAGS_STR_LEN + 2325 (pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0); 2326 default: 2327 return -EOPNOTSUPP; 2328 } 2329 } 2330 2331 /** 2332 * i40e_get_veb_tc_stats - copy VEB TC statistics to formatted structure 2333 * @tc: the TC statistics in VEB structure (veb->tc_stats) 2334 * @i: the index of traffic class in (veb->tc_stats) structure to copy 2335 * 2336 * Copy VEB TC statistics from structure of arrays (veb->tc_stats) to 2337 * one dimensional structure i40e_cp_veb_tc_stats. 2338 * Produce formatted i40e_cp_veb_tc_stats structure of the VEB TC 2339 * statistics for the given TC. 2340 **/ 2341 static struct i40e_cp_veb_tc_stats 2342 i40e_get_veb_tc_stats(struct i40e_veb_tc_stats *tc, unsigned int i) 2343 { 2344 struct i40e_cp_veb_tc_stats veb_tc = { 2345 .tc_rx_packets = tc->tc_rx_packets[i], 2346 .tc_rx_bytes = tc->tc_rx_bytes[i], 2347 .tc_tx_packets = tc->tc_tx_packets[i], 2348 .tc_tx_bytes = tc->tc_tx_bytes[i], 2349 }; 2350 2351 return veb_tc; 2352 } 2353 2354 /** 2355 * i40e_get_pfc_stats - copy HW PFC statistics to formatted structure 2356 * @pf: the PF device structure 2357 * @i: the priority value to copy 2358 * 2359 * The PFC stats are found as arrays in pf->stats, which is not easy to pass 2360 * into i40e_add_ethtool_stats. Produce a formatted i40e_pfc_stats structure 2361 * of the PFC stats for the given priority. 2362 **/ 2363 static inline struct i40e_pfc_stats 2364 i40e_get_pfc_stats(struct i40e_pf *pf, unsigned int i) 2365 { 2366 #define I40E_GET_PFC_STAT(stat, priority) \ 2367 .stat = pf->stats.stat[priority] 2368 2369 struct i40e_pfc_stats pfc = { 2370 I40E_GET_PFC_STAT(priority_xon_rx, i), 2371 I40E_GET_PFC_STAT(priority_xoff_rx, i), 2372 I40E_GET_PFC_STAT(priority_xon_tx, i), 2373 I40E_GET_PFC_STAT(priority_xoff_tx, i), 2374 I40E_GET_PFC_STAT(priority_xon_2_xoff, i), 2375 }; 2376 return pfc; 2377 } 2378 2379 /** 2380 * i40e_get_ethtool_stats - copy stat values into supplied buffer 2381 * @netdev: the netdev to collect stats for 2382 * @stats: ethtool stats command structure 2383 * @data: ethtool supplied buffer 2384 * 2385 * Copy the stats values for this netdev into the buffer. Expects data to be 2386 * pre-allocated to the size returned by i40e_get_stats_count.. Note that all 2387 * statistics must be copied in a static order, and the count must not change 2388 * for a given netdev. See i40e_get_stats_count for more details. 2389 * 2390 * If a statistic is not currently valid (such as a disabled queue), this 2391 * function reports its value as zero. 2392 **/ 2393 static void i40e_get_ethtool_stats(struct net_device *netdev, 2394 struct ethtool_stats *stats, u64 *data) 2395 { 2396 struct i40e_netdev_priv *np = netdev_priv(netdev); 2397 struct i40e_vsi *vsi = np->vsi; 2398 struct i40e_pf *pf = vsi->back; 2399 struct i40e_veb *veb = NULL; 2400 unsigned int i; 2401 bool veb_stats; 2402 u64 *p = data; 2403 2404 i40e_update_stats(vsi); 2405 2406 i40e_add_ethtool_stats(&data, i40e_get_vsi_stats_struct(vsi), 2407 i40e_gstrings_net_stats); 2408 2409 i40e_add_ethtool_stats(&data, vsi, i40e_gstrings_misc_stats); 2410 2411 rcu_read_lock(); 2412 for (i = 0; i < netdev->num_tx_queues; i++) { 2413 i40e_add_queue_stats(&data, READ_ONCE(vsi->tx_rings[i])); 2414 i40e_add_queue_stats(&data, READ_ONCE(vsi->rx_rings[i])); 2415 } 2416 rcu_read_unlock(); 2417 2418 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1) 2419 goto check_data_pointer; 2420 2421 veb_stats = ((pf->lan_veb != I40E_NO_VEB) && 2422 (pf->lan_veb < I40E_MAX_VEB) && 2423 (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)); 2424 2425 if (veb_stats) { 2426 veb = pf->veb[pf->lan_veb]; 2427 i40e_update_veb_stats(veb); 2428 } 2429 2430 /* If veb stats aren't enabled, pass NULL instead of the veb so that 2431 * we initialize stats to zero and update the data pointer 2432 * intelligently 2433 */ 2434 i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL, 2435 i40e_gstrings_veb_stats); 2436 2437 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) 2438 if (veb_stats) { 2439 struct i40e_cp_veb_tc_stats veb_tc = 2440 i40e_get_veb_tc_stats(&veb->tc_stats, i); 2441 2442 i40e_add_ethtool_stats(&data, &veb_tc, 2443 i40e_gstrings_veb_tc_stats); 2444 } else { 2445 i40e_add_ethtool_stats(&data, NULL, 2446 i40e_gstrings_veb_tc_stats); 2447 } 2448 2449 i40e_add_ethtool_stats(&data, pf, i40e_gstrings_stats); 2450 2451 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { 2452 struct i40e_pfc_stats pfc = i40e_get_pfc_stats(pf, i); 2453 2454 i40e_add_ethtool_stats(&data, &pfc, i40e_gstrings_pfc_stats); 2455 } 2456 2457 check_data_pointer: 2458 WARN_ONCE(data - p != i40e_get_stats_count(netdev), 2459 "ethtool stats count mismatch!"); 2460 } 2461 2462 /** 2463 * i40e_get_stat_strings - copy stat strings into supplied buffer 2464 * @netdev: the netdev to collect strings for 2465 * @data: supplied buffer to copy strings into 2466 * 2467 * Copy the strings related to stats for this netdev. Expects data to be 2468 * pre-allocated with the size reported by i40e_get_stats_count. Note that the 2469 * strings must be copied in a static order and the total count must not 2470 * change for a given netdev. See i40e_get_stats_count for more details. 2471 **/ 2472 static void i40e_get_stat_strings(struct net_device *netdev, u8 *data) 2473 { 2474 struct i40e_netdev_priv *np = netdev_priv(netdev); 2475 struct i40e_vsi *vsi = np->vsi; 2476 struct i40e_pf *pf = vsi->back; 2477 unsigned int i; 2478 u8 *p = data; 2479 2480 i40e_add_stat_strings(&data, i40e_gstrings_net_stats); 2481 2482 i40e_add_stat_strings(&data, i40e_gstrings_misc_stats); 2483 2484 for (i = 0; i < netdev->num_tx_queues; i++) { 2485 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, 2486 "tx", i); 2487 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, 2488 "rx", i); 2489 } 2490 2491 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1) 2492 goto check_data_pointer; 2493 2494 i40e_add_stat_strings(&data, i40e_gstrings_veb_stats); 2495 2496 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) 2497 i40e_add_stat_strings(&data, i40e_gstrings_veb_tc_stats, i); 2498 2499 i40e_add_stat_strings(&data, i40e_gstrings_stats); 2500 2501 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) 2502 i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i); 2503 2504 check_data_pointer: 2505 WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN, 2506 "stat strings count mismatch!"); 2507 } 2508 2509 static void i40e_get_priv_flag_strings(struct net_device *netdev, u8 *data) 2510 { 2511 struct i40e_netdev_priv *np = netdev_priv(netdev); 2512 struct i40e_vsi *vsi = np->vsi; 2513 struct i40e_pf *pf = vsi->back; 2514 unsigned int i; 2515 u8 *p = data; 2516 2517 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) 2518 ethtool_sprintf(&p, i40e_gstrings_priv_flags[i].flag_string); 2519 if (pf->hw.pf_id != 0) 2520 return; 2521 for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++) 2522 ethtool_sprintf(&p, i40e_gl_gstrings_priv_flags[i].flag_string); 2523 } 2524 2525 static void i40e_get_strings(struct net_device *netdev, u32 stringset, 2526 u8 *data) 2527 { 2528 switch (stringset) { 2529 case ETH_SS_TEST: 2530 memcpy(data, i40e_gstrings_test, 2531 I40E_TEST_LEN * ETH_GSTRING_LEN); 2532 break; 2533 case ETH_SS_STATS: 2534 i40e_get_stat_strings(netdev, data); 2535 break; 2536 case ETH_SS_PRIV_FLAGS: 2537 i40e_get_priv_flag_strings(netdev, data); 2538 break; 2539 default: 2540 break; 2541 } 2542 } 2543 2544 static int i40e_get_ts_info(struct net_device *dev, 2545 struct ethtool_ts_info *info) 2546 { 2547 struct i40e_pf *pf = i40e_netdev_to_pf(dev); 2548 2549 /* only report HW timestamping if PTP is enabled */ 2550 if (!(pf->flags & I40E_FLAG_PTP)) 2551 return ethtool_op_get_ts_info(dev, info); 2552 2553 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | 2554 SOF_TIMESTAMPING_RX_SOFTWARE | 2555 SOF_TIMESTAMPING_SOFTWARE | 2556 SOF_TIMESTAMPING_TX_HARDWARE | 2557 SOF_TIMESTAMPING_RX_HARDWARE | 2558 SOF_TIMESTAMPING_RAW_HARDWARE; 2559 2560 if (pf->ptp_clock) 2561 info->phc_index = ptp_clock_index(pf->ptp_clock); 2562 else 2563 info->phc_index = -1; 2564 2565 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON); 2566 2567 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | 2568 BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) | 2569 BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) | 2570 BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ); 2571 2572 if (pf->hw_features & I40E_HW_PTP_L4_CAPABLE) 2573 info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) | 2574 BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) | 2575 BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) | 2576 BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) | 2577 BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) | 2578 BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) | 2579 BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) | 2580 BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ); 2581 2582 return 0; 2583 } 2584 2585 static u64 i40e_link_test(struct net_device *netdev, u64 *data) 2586 { 2587 struct i40e_netdev_priv *np = netdev_priv(netdev); 2588 struct i40e_pf *pf = np->vsi->back; 2589 i40e_status status; 2590 bool link_up = false; 2591 2592 netif_info(pf, hw, netdev, "link test\n"); 2593 status = i40e_get_link_status(&pf->hw, &link_up); 2594 if (status) { 2595 netif_err(pf, drv, netdev, "link query timed out, please retry test\n"); 2596 *data = 1; 2597 return *data; 2598 } 2599 2600 if (link_up) 2601 *data = 0; 2602 else 2603 *data = 1; 2604 2605 return *data; 2606 } 2607 2608 static u64 i40e_reg_test(struct net_device *netdev, u64 *data) 2609 { 2610 struct i40e_netdev_priv *np = netdev_priv(netdev); 2611 struct i40e_pf *pf = np->vsi->back; 2612 2613 netif_info(pf, hw, netdev, "register test\n"); 2614 *data = i40e_diag_reg_test(&pf->hw); 2615 2616 return *data; 2617 } 2618 2619 static u64 i40e_eeprom_test(struct net_device *netdev, u64 *data) 2620 { 2621 struct i40e_netdev_priv *np = netdev_priv(netdev); 2622 struct i40e_pf *pf = np->vsi->back; 2623 2624 netif_info(pf, hw, netdev, "eeprom test\n"); 2625 *data = i40e_diag_eeprom_test(&pf->hw); 2626 2627 /* forcebly clear the NVM Update state machine */ 2628 pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT; 2629 2630 return *data; 2631 } 2632 2633 static u64 i40e_intr_test(struct net_device *netdev, u64 *data) 2634 { 2635 struct i40e_netdev_priv *np = netdev_priv(netdev); 2636 struct i40e_pf *pf = np->vsi->back; 2637 u16 swc_old = pf->sw_int_count; 2638 2639 netif_info(pf, hw, netdev, "interrupt test\n"); 2640 wr32(&pf->hw, I40E_PFINT_DYN_CTL0, 2641 (I40E_PFINT_DYN_CTL0_INTENA_MASK | 2642 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK | 2643 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK | 2644 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK | 2645 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK)); 2646 usleep_range(1000, 2000); 2647 *data = (swc_old == pf->sw_int_count); 2648 2649 return *data; 2650 } 2651 2652 static inline bool i40e_active_vfs(struct i40e_pf *pf) 2653 { 2654 struct i40e_vf *vfs = pf->vf; 2655 int i; 2656 2657 for (i = 0; i < pf->num_alloc_vfs; i++) 2658 if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states)) 2659 return true; 2660 return false; 2661 } 2662 2663 static inline bool i40e_active_vmdqs(struct i40e_pf *pf) 2664 { 2665 return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2); 2666 } 2667 2668 static void i40e_diag_test(struct net_device *netdev, 2669 struct ethtool_test *eth_test, u64 *data) 2670 { 2671 struct i40e_netdev_priv *np = netdev_priv(netdev); 2672 bool if_running = netif_running(netdev); 2673 struct i40e_pf *pf = np->vsi->back; 2674 2675 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 2676 /* Offline tests */ 2677 netif_info(pf, drv, netdev, "offline testing starting\n"); 2678 2679 set_bit(__I40E_TESTING, pf->state); 2680 2681 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 2682 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) { 2683 dev_warn(&pf->pdev->dev, 2684 "Cannot start offline testing when PF is in reset state.\n"); 2685 goto skip_ol_tests; 2686 } 2687 2688 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) { 2689 dev_warn(&pf->pdev->dev, 2690 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n"); 2691 goto skip_ol_tests; 2692 } 2693 2694 /* If the device is online then take it offline */ 2695 if (if_running) 2696 /* indicate we're in test mode */ 2697 i40e_close(netdev); 2698 else 2699 /* This reset does not affect link - if it is 2700 * changed to a type of reset that does affect 2701 * link then the following link test would have 2702 * to be moved to before the reset 2703 */ 2704 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 2705 2706 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 2707 eth_test->flags |= ETH_TEST_FL_FAILED; 2708 2709 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM])) 2710 eth_test->flags |= ETH_TEST_FL_FAILED; 2711 2712 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR])) 2713 eth_test->flags |= ETH_TEST_FL_FAILED; 2714 2715 /* run reg test last, a reset is required after it */ 2716 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG])) 2717 eth_test->flags |= ETH_TEST_FL_FAILED; 2718 2719 clear_bit(__I40E_TESTING, pf->state); 2720 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 2721 2722 if (if_running) 2723 i40e_open(netdev); 2724 } else { 2725 /* Online tests */ 2726 netif_info(pf, drv, netdev, "online testing starting\n"); 2727 2728 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 2729 eth_test->flags |= ETH_TEST_FL_FAILED; 2730 2731 /* Offline only tests, not run in online; pass by default */ 2732 data[I40E_ETH_TEST_REG] = 0; 2733 data[I40E_ETH_TEST_EEPROM] = 0; 2734 data[I40E_ETH_TEST_INTR] = 0; 2735 } 2736 2737 netif_info(pf, drv, netdev, "testing finished\n"); 2738 return; 2739 2740 skip_ol_tests: 2741 data[I40E_ETH_TEST_REG] = 1; 2742 data[I40E_ETH_TEST_EEPROM] = 1; 2743 data[I40E_ETH_TEST_INTR] = 1; 2744 data[I40E_ETH_TEST_LINK] = 1; 2745 eth_test->flags |= ETH_TEST_FL_FAILED; 2746 clear_bit(__I40E_TESTING, pf->state); 2747 netif_info(pf, drv, netdev, "testing failed\n"); 2748 } 2749 2750 static void i40e_get_wol(struct net_device *netdev, 2751 struct ethtool_wolinfo *wol) 2752 { 2753 struct i40e_netdev_priv *np = netdev_priv(netdev); 2754 struct i40e_pf *pf = np->vsi->back; 2755 struct i40e_hw *hw = &pf->hw; 2756 u16 wol_nvm_bits; 2757 2758 /* NVM bit on means WoL disabled for the port */ 2759 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 2760 if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) { 2761 wol->supported = 0; 2762 wol->wolopts = 0; 2763 } else { 2764 wol->supported = WAKE_MAGIC; 2765 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0); 2766 } 2767 } 2768 2769 /** 2770 * i40e_set_wol - set the WakeOnLAN configuration 2771 * @netdev: the netdev in question 2772 * @wol: the ethtool WoL setting data 2773 **/ 2774 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 2775 { 2776 struct i40e_netdev_priv *np = netdev_priv(netdev); 2777 struct i40e_pf *pf = np->vsi->back; 2778 struct i40e_vsi *vsi = np->vsi; 2779 struct i40e_hw *hw = &pf->hw; 2780 u16 wol_nvm_bits; 2781 2782 /* WoL not supported if this isn't the controlling PF on the port */ 2783 if (hw->partition_id != 1) { 2784 i40e_partition_setting_complaint(pf); 2785 return -EOPNOTSUPP; 2786 } 2787 2788 if (vsi != pf->vsi[pf->lan_vsi]) 2789 return -EOPNOTSUPP; 2790 2791 /* NVM bit on means WoL disabled for the port */ 2792 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 2793 if (BIT(hw->port) & wol_nvm_bits) 2794 return -EOPNOTSUPP; 2795 2796 /* only magic packet is supported */ 2797 if (wol->wolopts & ~WAKE_MAGIC) 2798 return -EOPNOTSUPP; 2799 2800 /* is this a new value? */ 2801 if (pf->wol_en != !!wol->wolopts) { 2802 pf->wol_en = !!wol->wolopts; 2803 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en); 2804 } 2805 2806 return 0; 2807 } 2808 2809 static int i40e_set_phys_id(struct net_device *netdev, 2810 enum ethtool_phys_id_state state) 2811 { 2812 struct i40e_netdev_priv *np = netdev_priv(netdev); 2813 i40e_status ret = 0; 2814 struct i40e_pf *pf = np->vsi->back; 2815 struct i40e_hw *hw = &pf->hw; 2816 int blink_freq = 2; 2817 u16 temp_status; 2818 2819 switch (state) { 2820 case ETHTOOL_ID_ACTIVE: 2821 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) { 2822 pf->led_status = i40e_led_get(hw); 2823 } else { 2824 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) 2825 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL, 2826 NULL); 2827 ret = i40e_led_get_phy(hw, &temp_status, 2828 &pf->phy_led_val); 2829 pf->led_status = temp_status; 2830 } 2831 return blink_freq; 2832 case ETHTOOL_ID_ON: 2833 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) 2834 i40e_led_set(hw, 0xf, false); 2835 else 2836 ret = i40e_led_set_phy(hw, true, pf->led_status, 0); 2837 break; 2838 case ETHTOOL_ID_OFF: 2839 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) 2840 i40e_led_set(hw, 0x0, false); 2841 else 2842 ret = i40e_led_set_phy(hw, false, pf->led_status, 0); 2843 break; 2844 case ETHTOOL_ID_INACTIVE: 2845 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) { 2846 i40e_led_set(hw, pf->led_status, false); 2847 } else { 2848 ret = i40e_led_set_phy(hw, false, pf->led_status, 2849 (pf->phy_led_val | 2850 I40E_PHY_LED_MODE_ORIG)); 2851 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) 2852 i40e_aq_set_phy_debug(hw, 0, NULL); 2853 } 2854 break; 2855 default: 2856 break; 2857 } 2858 if (ret) 2859 return -ENOENT; 2860 else 2861 return 0; 2862 } 2863 2864 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt 2865 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also 2866 * 125us (8000 interrupts per second) == ITR(62) 2867 */ 2868 2869 /** 2870 * __i40e_get_coalesce - get per-queue coalesce settings 2871 * @netdev: the netdev to check 2872 * @ec: ethtool coalesce data structure 2873 * @queue: which queue to pick 2874 * 2875 * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs 2876 * are per queue. If queue is <0 then we default to queue 0 as the 2877 * representative value. 2878 **/ 2879 static int __i40e_get_coalesce(struct net_device *netdev, 2880 struct ethtool_coalesce *ec, 2881 int queue) 2882 { 2883 struct i40e_netdev_priv *np = netdev_priv(netdev); 2884 struct i40e_ring *rx_ring, *tx_ring; 2885 struct i40e_vsi *vsi = np->vsi; 2886 2887 ec->tx_max_coalesced_frames_irq = vsi->work_limit; 2888 ec->rx_max_coalesced_frames_irq = vsi->work_limit; 2889 2890 /* rx and tx usecs has per queue value. If user doesn't specify the 2891 * queue, return queue 0's value to represent. 2892 */ 2893 if (queue < 0) 2894 queue = 0; 2895 else if (queue >= vsi->num_queue_pairs) 2896 return -EINVAL; 2897 2898 rx_ring = vsi->rx_rings[queue]; 2899 tx_ring = vsi->tx_rings[queue]; 2900 2901 if (ITR_IS_DYNAMIC(rx_ring->itr_setting)) 2902 ec->use_adaptive_rx_coalesce = 1; 2903 2904 if (ITR_IS_DYNAMIC(tx_ring->itr_setting)) 2905 ec->use_adaptive_tx_coalesce = 1; 2906 2907 ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC; 2908 ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC; 2909 2910 /* we use the _usecs_high to store/set the interrupt rate limit 2911 * that the hardware supports, that almost but not quite 2912 * fits the original intent of the ethtool variable, 2913 * the rx_coalesce_usecs_high limits total interrupts 2914 * per second from both tx/rx sources. 2915 */ 2916 ec->rx_coalesce_usecs_high = vsi->int_rate_limit; 2917 ec->tx_coalesce_usecs_high = vsi->int_rate_limit; 2918 2919 return 0; 2920 } 2921 2922 /** 2923 * i40e_get_coalesce - get a netdev's coalesce settings 2924 * @netdev: the netdev to check 2925 * @ec: ethtool coalesce data structure 2926 * @kernel_coal: ethtool CQE mode setting structure 2927 * @extack: extack for reporting error messages 2928 * 2929 * Gets the coalesce settings for a particular netdev. Note that if user has 2930 * modified per-queue settings, this only guarantees to represent queue 0. See 2931 * __i40e_get_coalesce for more details. 2932 **/ 2933 static int i40e_get_coalesce(struct net_device *netdev, 2934 struct ethtool_coalesce *ec, 2935 struct kernel_ethtool_coalesce *kernel_coal, 2936 struct netlink_ext_ack *extack) 2937 { 2938 return __i40e_get_coalesce(netdev, ec, -1); 2939 } 2940 2941 /** 2942 * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue 2943 * @netdev: netdev structure 2944 * @ec: ethtool's coalesce settings 2945 * @queue: the particular queue to read 2946 * 2947 * Will read a specific queue's coalesce settings 2948 **/ 2949 static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue, 2950 struct ethtool_coalesce *ec) 2951 { 2952 return __i40e_get_coalesce(netdev, ec, queue); 2953 } 2954 2955 /** 2956 * i40e_set_itr_per_queue - set ITR values for specific queue 2957 * @vsi: the VSI to set values for 2958 * @ec: coalesce settings from ethtool 2959 * @queue: the queue to modify 2960 * 2961 * Change the ITR settings for a specific queue. 2962 **/ 2963 static void i40e_set_itr_per_queue(struct i40e_vsi *vsi, 2964 struct ethtool_coalesce *ec, 2965 int queue) 2966 { 2967 struct i40e_ring *rx_ring = vsi->rx_rings[queue]; 2968 struct i40e_ring *tx_ring = vsi->tx_rings[queue]; 2969 struct i40e_pf *pf = vsi->back; 2970 struct i40e_hw *hw = &pf->hw; 2971 struct i40e_q_vector *q_vector; 2972 u16 intrl; 2973 2974 intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit); 2975 2976 rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs); 2977 tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs); 2978 2979 if (ec->use_adaptive_rx_coalesce) 2980 rx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2981 else 2982 rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2983 2984 if (ec->use_adaptive_tx_coalesce) 2985 tx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2986 else 2987 tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2988 2989 q_vector = rx_ring->q_vector; 2990 q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting); 2991 2992 q_vector = tx_ring->q_vector; 2993 q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting); 2994 2995 /* The interrupt handler itself will take care of programming 2996 * the Tx and Rx ITR values based on the values we have entered 2997 * into the q_vector, no need to write the values now. 2998 */ 2999 3000 wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl); 3001 i40e_flush(hw); 3002 } 3003 3004 /** 3005 * __i40e_set_coalesce - set coalesce settings for particular queue 3006 * @netdev: the netdev to change 3007 * @ec: ethtool coalesce settings 3008 * @queue: the queue to change 3009 * 3010 * Sets the coalesce settings for a particular queue. 3011 **/ 3012 static int __i40e_set_coalesce(struct net_device *netdev, 3013 struct ethtool_coalesce *ec, 3014 int queue) 3015 { 3016 struct i40e_netdev_priv *np = netdev_priv(netdev); 3017 u16 intrl_reg, cur_rx_itr, cur_tx_itr; 3018 struct i40e_vsi *vsi = np->vsi; 3019 struct i40e_pf *pf = vsi->back; 3020 int i; 3021 3022 if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq) 3023 vsi->work_limit = ec->tx_max_coalesced_frames_irq; 3024 3025 if (queue < 0) { 3026 cur_rx_itr = vsi->rx_rings[0]->itr_setting; 3027 cur_tx_itr = vsi->tx_rings[0]->itr_setting; 3028 } else if (queue < vsi->num_queue_pairs) { 3029 cur_rx_itr = vsi->rx_rings[queue]->itr_setting; 3030 cur_tx_itr = vsi->tx_rings[queue]->itr_setting; 3031 } else { 3032 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n", 3033 vsi->num_queue_pairs - 1); 3034 return -EINVAL; 3035 } 3036 3037 cur_tx_itr &= ~I40E_ITR_DYNAMIC; 3038 cur_rx_itr &= ~I40E_ITR_DYNAMIC; 3039 3040 /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */ 3041 if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) { 3042 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n"); 3043 return -EINVAL; 3044 } 3045 3046 if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) { 3047 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n", 3048 INTRL_REG_TO_USEC(I40E_MAX_INTRL)); 3049 return -EINVAL; 3050 } 3051 3052 if (ec->rx_coalesce_usecs != cur_rx_itr && 3053 ec->use_adaptive_rx_coalesce) { 3054 netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n"); 3055 return -EINVAL; 3056 } 3057 3058 if (ec->rx_coalesce_usecs > I40E_MAX_ITR) { 3059 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n"); 3060 return -EINVAL; 3061 } 3062 3063 if (ec->tx_coalesce_usecs != cur_tx_itr && 3064 ec->use_adaptive_tx_coalesce) { 3065 netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n"); 3066 return -EINVAL; 3067 } 3068 3069 if (ec->tx_coalesce_usecs > I40E_MAX_ITR) { 3070 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n"); 3071 return -EINVAL; 3072 } 3073 3074 if (ec->use_adaptive_rx_coalesce && !cur_rx_itr) 3075 ec->rx_coalesce_usecs = I40E_MIN_ITR; 3076 3077 if (ec->use_adaptive_tx_coalesce && !cur_tx_itr) 3078 ec->tx_coalesce_usecs = I40E_MIN_ITR; 3079 3080 intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high); 3081 vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg); 3082 if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) { 3083 netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n", 3084 vsi->int_rate_limit); 3085 } 3086 3087 /* rx and tx usecs has per queue value. If user doesn't specify the 3088 * queue, apply to all queues. 3089 */ 3090 if (queue < 0) { 3091 for (i = 0; i < vsi->num_queue_pairs; i++) 3092 i40e_set_itr_per_queue(vsi, ec, i); 3093 } else { 3094 i40e_set_itr_per_queue(vsi, ec, queue); 3095 } 3096 3097 return 0; 3098 } 3099 3100 /** 3101 * i40e_set_coalesce - set coalesce settings for every queue on the netdev 3102 * @netdev: the netdev to change 3103 * @ec: ethtool coalesce settings 3104 * @kernel_coal: ethtool CQE mode setting structure 3105 * @extack: extack for reporting error messages 3106 * 3107 * This will set each queue to the same coalesce settings. 3108 **/ 3109 static int i40e_set_coalesce(struct net_device *netdev, 3110 struct ethtool_coalesce *ec, 3111 struct kernel_ethtool_coalesce *kernel_coal, 3112 struct netlink_ext_ack *extack) 3113 { 3114 return __i40e_set_coalesce(netdev, ec, -1); 3115 } 3116 3117 /** 3118 * i40e_set_per_queue_coalesce - set specific queue's coalesce settings 3119 * @netdev: the netdev to change 3120 * @ec: ethtool's coalesce settings 3121 * @queue: the queue to change 3122 * 3123 * Sets the specified queue's coalesce settings. 3124 **/ 3125 static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue, 3126 struct ethtool_coalesce *ec) 3127 { 3128 return __i40e_set_coalesce(netdev, ec, queue); 3129 } 3130 3131 /** 3132 * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type 3133 * @pf: pointer to the physical function struct 3134 * @cmd: ethtool rxnfc command 3135 * 3136 * Returns Success if the flow is supported, else Invalid Input. 3137 **/ 3138 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd) 3139 { 3140 struct i40e_hw *hw = &pf->hw; 3141 u8 flow_pctype = 0; 3142 u64 i_set = 0; 3143 3144 cmd->data = 0; 3145 3146 switch (cmd->flow_type) { 3147 case TCP_V4_FLOW: 3148 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3149 break; 3150 case UDP_V4_FLOW: 3151 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3152 break; 3153 case TCP_V6_FLOW: 3154 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3155 break; 3156 case UDP_V6_FLOW: 3157 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3158 break; 3159 case SCTP_V4_FLOW: 3160 case AH_ESP_V4_FLOW: 3161 case AH_V4_FLOW: 3162 case ESP_V4_FLOW: 3163 case IPV4_FLOW: 3164 case SCTP_V6_FLOW: 3165 case AH_ESP_V6_FLOW: 3166 case AH_V6_FLOW: 3167 case ESP_V6_FLOW: 3168 case IPV6_FLOW: 3169 /* Default is src/dest for IP, no matter the L4 hashing */ 3170 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 3171 break; 3172 default: 3173 return -EINVAL; 3174 } 3175 3176 /* Read flow based hash input set register */ 3177 if (flow_pctype) { 3178 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, 3179 flow_pctype)) | 3180 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, 3181 flow_pctype)) << 32); 3182 } 3183 3184 /* Process bits of hash input set */ 3185 if (i_set) { 3186 if (i_set & I40E_L4_SRC_MASK) 3187 cmd->data |= RXH_L4_B_0_1; 3188 if (i_set & I40E_L4_DST_MASK) 3189 cmd->data |= RXH_L4_B_2_3; 3190 3191 if (cmd->flow_type == TCP_V4_FLOW || 3192 cmd->flow_type == UDP_V4_FLOW) { 3193 if (i_set & I40E_L3_SRC_MASK) 3194 cmd->data |= RXH_IP_SRC; 3195 if (i_set & I40E_L3_DST_MASK) 3196 cmd->data |= RXH_IP_DST; 3197 } else if (cmd->flow_type == TCP_V6_FLOW || 3198 cmd->flow_type == UDP_V6_FLOW) { 3199 if (i_set & I40E_L3_V6_SRC_MASK) 3200 cmd->data |= RXH_IP_SRC; 3201 if (i_set & I40E_L3_V6_DST_MASK) 3202 cmd->data |= RXH_IP_DST; 3203 } 3204 } 3205 3206 return 0; 3207 } 3208 3209 /** 3210 * i40e_check_mask - Check whether a mask field is set 3211 * @mask: the full mask value 3212 * @field: mask of the field to check 3213 * 3214 * If the given mask is fully set, return positive value. If the mask for the 3215 * field is fully unset, return zero. Otherwise return a negative error code. 3216 **/ 3217 static int i40e_check_mask(u64 mask, u64 field) 3218 { 3219 u64 value = mask & field; 3220 3221 if (value == field) 3222 return 1; 3223 else if (!value) 3224 return 0; 3225 else 3226 return -1; 3227 } 3228 3229 /** 3230 * i40e_parse_rx_flow_user_data - Deconstruct user-defined data 3231 * @fsp: pointer to rx flow specification 3232 * @data: pointer to userdef data structure for storage 3233 * 3234 * Read the user-defined data and deconstruct the value into a structure. No 3235 * other code should read the user-defined data, so as to ensure that every 3236 * place consistently reads the value correctly. 3237 * 3238 * The user-defined field is a 64bit Big Endian format value, which we 3239 * deconstruct by reading bits or bit fields from it. Single bit flags shall 3240 * be defined starting from the highest bits, while small bit field values 3241 * shall be defined starting from the lowest bits. 3242 * 3243 * Returns 0 if the data is valid, and non-zero if the userdef data is invalid 3244 * and the filter should be rejected. The data structure will always be 3245 * modified even if FLOW_EXT is not set. 3246 * 3247 **/ 3248 static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 3249 struct i40e_rx_flow_userdef *data) 3250 { 3251 u64 value, mask; 3252 int valid; 3253 3254 /* Zero memory first so it's always consistent. */ 3255 memset(data, 0, sizeof(*data)); 3256 3257 if (!(fsp->flow_type & FLOW_EXT)) 3258 return 0; 3259 3260 value = be64_to_cpu(*((__be64 *)fsp->h_ext.data)); 3261 mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data)); 3262 3263 #define I40E_USERDEF_FLEX_WORD GENMASK_ULL(15, 0) 3264 #define I40E_USERDEF_FLEX_OFFSET GENMASK_ULL(31, 16) 3265 #define I40E_USERDEF_FLEX_FILTER GENMASK_ULL(31, 0) 3266 3267 valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER); 3268 if (valid < 0) { 3269 return -EINVAL; 3270 } else if (valid) { 3271 data->flex_word = value & I40E_USERDEF_FLEX_WORD; 3272 data->flex_offset = 3273 (value & I40E_USERDEF_FLEX_OFFSET) >> 16; 3274 data->flex_filter = true; 3275 } 3276 3277 return 0; 3278 } 3279 3280 /** 3281 * i40e_fill_rx_flow_user_data - Fill in user-defined data field 3282 * @fsp: pointer to rx_flow specification 3283 * @data: pointer to return userdef data 3284 * 3285 * Reads the userdef data structure and properly fills in the user defined 3286 * fields of the rx_flow_spec. 3287 **/ 3288 static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 3289 struct i40e_rx_flow_userdef *data) 3290 { 3291 u64 value = 0, mask = 0; 3292 3293 if (data->flex_filter) { 3294 value |= data->flex_word; 3295 value |= (u64)data->flex_offset << 16; 3296 mask |= I40E_USERDEF_FLEX_FILTER; 3297 } 3298 3299 if (value || mask) 3300 fsp->flow_type |= FLOW_EXT; 3301 3302 *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value); 3303 *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask); 3304 } 3305 3306 /** 3307 * i40e_get_ethtool_fdir_all - Populates the rule count of a command 3308 * @pf: Pointer to the physical function struct 3309 * @cmd: The command to get or set Rx flow classification rules 3310 * @rule_locs: Array of used rule locations 3311 * 3312 * This function populates both the total and actual rule count of 3313 * the ethtool flow classification command 3314 * 3315 * Returns 0 on success or -EMSGSIZE if entry not found 3316 **/ 3317 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf, 3318 struct ethtool_rxnfc *cmd, 3319 u32 *rule_locs) 3320 { 3321 struct i40e_fdir_filter *rule; 3322 struct hlist_node *node2; 3323 int cnt = 0; 3324 3325 /* report total rule count */ 3326 cmd->data = i40e_get_fd_cnt_all(pf); 3327 3328 hlist_for_each_entry_safe(rule, node2, 3329 &pf->fdir_filter_list, fdir_node) { 3330 if (cnt == cmd->rule_cnt) 3331 return -EMSGSIZE; 3332 3333 rule_locs[cnt] = rule->fd_id; 3334 cnt++; 3335 } 3336 3337 cmd->rule_cnt = cnt; 3338 3339 return 0; 3340 } 3341 3342 /** 3343 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow 3344 * @pf: Pointer to the physical function struct 3345 * @cmd: The command to get or set Rx flow classification rules 3346 * 3347 * This function looks up a filter based on the Rx flow classification 3348 * command and fills the flow spec info for it if found 3349 * 3350 * Returns 0 on success or -EINVAL if filter not found 3351 **/ 3352 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf, 3353 struct ethtool_rxnfc *cmd) 3354 { 3355 struct ethtool_rx_flow_spec *fsp = 3356 (struct ethtool_rx_flow_spec *)&cmd->fs; 3357 struct i40e_rx_flow_userdef userdef = {0}; 3358 struct i40e_fdir_filter *rule = NULL; 3359 struct hlist_node *node2; 3360 u64 input_set; 3361 u16 index; 3362 3363 hlist_for_each_entry_safe(rule, node2, 3364 &pf->fdir_filter_list, fdir_node) { 3365 if (fsp->location <= rule->fd_id) 3366 break; 3367 } 3368 3369 if (!rule || fsp->location != rule->fd_id) 3370 return -EINVAL; 3371 3372 fsp->flow_type = rule->flow_type; 3373 if (fsp->flow_type == IP_USER_FLOW) { 3374 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4; 3375 fsp->h_u.usr_ip4_spec.proto = 0; 3376 fsp->m_u.usr_ip4_spec.proto = 0; 3377 } 3378 3379 if (fsp->flow_type == IPV6_USER_FLOW || 3380 fsp->flow_type == UDP_V6_FLOW || 3381 fsp->flow_type == TCP_V6_FLOW || 3382 fsp->flow_type == SCTP_V6_FLOW) { 3383 /* Reverse the src and dest notion, since the HW views them 3384 * from Tx perspective where as the user expects it from 3385 * Rx filter view. 3386 */ 3387 fsp->h_u.tcp_ip6_spec.psrc = rule->dst_port; 3388 fsp->h_u.tcp_ip6_spec.pdst = rule->src_port; 3389 memcpy(fsp->h_u.tcp_ip6_spec.ip6dst, rule->src_ip6, 3390 sizeof(__be32) * 4); 3391 memcpy(fsp->h_u.tcp_ip6_spec.ip6src, rule->dst_ip6, 3392 sizeof(__be32) * 4); 3393 } else { 3394 /* Reverse the src and dest notion, since the HW views them 3395 * from Tx perspective where as the user expects it from 3396 * Rx filter view. 3397 */ 3398 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port; 3399 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port; 3400 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip; 3401 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip; 3402 } 3403 3404 switch (rule->flow_type) { 3405 case SCTP_V4_FLOW: 3406 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP; 3407 break; 3408 case TCP_V4_FLOW: 3409 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3410 break; 3411 case UDP_V4_FLOW: 3412 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3413 break; 3414 case SCTP_V6_FLOW: 3415 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP; 3416 break; 3417 case TCP_V6_FLOW: 3418 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3419 break; 3420 case UDP_V6_FLOW: 3421 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3422 break; 3423 case IP_USER_FLOW: 3424 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER; 3425 break; 3426 case IPV6_USER_FLOW: 3427 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER; 3428 break; 3429 default: 3430 /* If we have stored a filter with a flow type not listed here 3431 * it is almost certainly a driver bug. WARN(), and then 3432 * assign the input_set as if all fields are enabled to avoid 3433 * reading unassigned memory. 3434 */ 3435 WARN(1, "Missing input set index for flow_type %d\n", 3436 rule->flow_type); 3437 input_set = 0xFFFFFFFFFFFFFFFFULL; 3438 goto no_input_set; 3439 } 3440 3441 input_set = i40e_read_fd_input_set(pf, index); 3442 3443 no_input_set: 3444 if (input_set & I40E_L3_V6_SRC_MASK) { 3445 fsp->m_u.tcp_ip6_spec.ip6src[0] = htonl(0xFFFFFFFF); 3446 fsp->m_u.tcp_ip6_spec.ip6src[1] = htonl(0xFFFFFFFF); 3447 fsp->m_u.tcp_ip6_spec.ip6src[2] = htonl(0xFFFFFFFF); 3448 fsp->m_u.tcp_ip6_spec.ip6src[3] = htonl(0xFFFFFFFF); 3449 } 3450 3451 if (input_set & I40E_L3_V6_DST_MASK) { 3452 fsp->m_u.tcp_ip6_spec.ip6dst[0] = htonl(0xFFFFFFFF); 3453 fsp->m_u.tcp_ip6_spec.ip6dst[1] = htonl(0xFFFFFFFF); 3454 fsp->m_u.tcp_ip6_spec.ip6dst[2] = htonl(0xFFFFFFFF); 3455 fsp->m_u.tcp_ip6_spec.ip6dst[3] = htonl(0xFFFFFFFF); 3456 } 3457 3458 if (input_set & I40E_L3_SRC_MASK) 3459 fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF); 3460 3461 if (input_set & I40E_L3_DST_MASK) 3462 fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF); 3463 3464 if (input_set & I40E_L4_SRC_MASK) 3465 fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF); 3466 3467 if (input_set & I40E_L4_DST_MASK) 3468 fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF); 3469 3470 if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET) 3471 fsp->ring_cookie = RX_CLS_FLOW_DISC; 3472 else 3473 fsp->ring_cookie = rule->q_index; 3474 3475 if (rule->vlan_tag) { 3476 fsp->h_ext.vlan_etype = rule->vlan_etype; 3477 fsp->m_ext.vlan_etype = htons(0xFFFF); 3478 fsp->h_ext.vlan_tci = rule->vlan_tag; 3479 fsp->m_ext.vlan_tci = htons(0xFFFF); 3480 fsp->flow_type |= FLOW_EXT; 3481 } 3482 3483 if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) { 3484 struct i40e_vsi *vsi; 3485 3486 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi); 3487 if (vsi && vsi->type == I40E_VSI_SRIOV) { 3488 /* VFs are zero-indexed by the driver, but ethtool 3489 * expects them to be one-indexed, so add one here 3490 */ 3491 u64 ring_vf = vsi->vf_id + 1; 3492 3493 ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF; 3494 fsp->ring_cookie |= ring_vf; 3495 } 3496 } 3497 3498 if (rule->flex_filter) { 3499 userdef.flex_filter = true; 3500 userdef.flex_word = be16_to_cpu(rule->flex_word); 3501 userdef.flex_offset = rule->flex_offset; 3502 } 3503 3504 i40e_fill_rx_flow_user_data(fsp, &userdef); 3505 3506 return 0; 3507 } 3508 3509 /** 3510 * i40e_get_rxnfc - command to get RX flow classification rules 3511 * @netdev: network interface device structure 3512 * @cmd: ethtool rxnfc command 3513 * @rule_locs: pointer to store rule data 3514 * 3515 * Returns Success if the command is supported. 3516 **/ 3517 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd, 3518 u32 *rule_locs) 3519 { 3520 struct i40e_netdev_priv *np = netdev_priv(netdev); 3521 struct i40e_vsi *vsi = np->vsi; 3522 struct i40e_pf *pf = vsi->back; 3523 int ret = -EOPNOTSUPP; 3524 3525 switch (cmd->cmd) { 3526 case ETHTOOL_GRXRINGS: 3527 cmd->data = vsi->rss_size; 3528 ret = 0; 3529 break; 3530 case ETHTOOL_GRXFH: 3531 ret = i40e_get_rss_hash_opts(pf, cmd); 3532 break; 3533 case ETHTOOL_GRXCLSRLCNT: 3534 cmd->rule_cnt = pf->fdir_pf_active_filters; 3535 /* report total rule count */ 3536 cmd->data = i40e_get_fd_cnt_all(pf); 3537 ret = 0; 3538 break; 3539 case ETHTOOL_GRXCLSRULE: 3540 ret = i40e_get_ethtool_fdir_entry(pf, cmd); 3541 break; 3542 case ETHTOOL_GRXCLSRLALL: 3543 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs); 3544 break; 3545 default: 3546 break; 3547 } 3548 3549 return ret; 3550 } 3551 3552 /** 3553 * i40e_get_rss_hash_bits - Read RSS Hash bits from register 3554 * @nfc: pointer to user request 3555 * @i_setc: bits currently set 3556 * 3557 * Returns value of bits to be set per user request 3558 **/ 3559 static u64 i40e_get_rss_hash_bits(struct ethtool_rxnfc *nfc, u64 i_setc) 3560 { 3561 u64 i_set = i_setc; 3562 u64 src_l3 = 0, dst_l3 = 0; 3563 3564 if (nfc->data & RXH_L4_B_0_1) 3565 i_set |= I40E_L4_SRC_MASK; 3566 else 3567 i_set &= ~I40E_L4_SRC_MASK; 3568 if (nfc->data & RXH_L4_B_2_3) 3569 i_set |= I40E_L4_DST_MASK; 3570 else 3571 i_set &= ~I40E_L4_DST_MASK; 3572 3573 if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) { 3574 src_l3 = I40E_L3_V6_SRC_MASK; 3575 dst_l3 = I40E_L3_V6_DST_MASK; 3576 } else if (nfc->flow_type == TCP_V4_FLOW || 3577 nfc->flow_type == UDP_V4_FLOW) { 3578 src_l3 = I40E_L3_SRC_MASK; 3579 dst_l3 = I40E_L3_DST_MASK; 3580 } else { 3581 /* Any other flow type are not supported here */ 3582 return i_set; 3583 } 3584 3585 if (nfc->data & RXH_IP_SRC) 3586 i_set |= src_l3; 3587 else 3588 i_set &= ~src_l3; 3589 if (nfc->data & RXH_IP_DST) 3590 i_set |= dst_l3; 3591 else 3592 i_set &= ~dst_l3; 3593 3594 return i_set; 3595 } 3596 3597 /** 3598 * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash 3599 * @pf: pointer to the physical function struct 3600 * @nfc: ethtool rxnfc command 3601 * 3602 * Returns Success if the flow input set is supported. 3603 **/ 3604 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc) 3605 { 3606 struct i40e_hw *hw = &pf->hw; 3607 u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) | 3608 ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32); 3609 u8 flow_pctype = 0; 3610 u64 i_set, i_setc; 3611 3612 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 3613 dev_err(&pf->pdev->dev, 3614 "Change of RSS hash input set is not supported when MFP mode is enabled\n"); 3615 return -EOPNOTSUPP; 3616 } 3617 3618 /* RSS does not support anything other than hashing 3619 * to queues on src and dst IPs and ports 3620 */ 3621 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 3622 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 3623 return -EINVAL; 3624 3625 switch (nfc->flow_type) { 3626 case TCP_V4_FLOW: 3627 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3628 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3629 hena |= 3630 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK); 3631 break; 3632 case TCP_V6_FLOW: 3633 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3634 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3635 hena |= 3636 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK); 3637 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3638 hena |= 3639 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK); 3640 break; 3641 case UDP_V4_FLOW: 3642 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3643 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3644 hena |= 3645 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) | 3646 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP); 3647 3648 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 3649 break; 3650 case UDP_V6_FLOW: 3651 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3652 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3653 hena |= 3654 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) | 3655 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP); 3656 3657 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 3658 break; 3659 case AH_ESP_V4_FLOW: 3660 case AH_V4_FLOW: 3661 case ESP_V4_FLOW: 3662 case SCTP_V4_FLOW: 3663 if ((nfc->data & RXH_L4_B_0_1) || 3664 (nfc->data & RXH_L4_B_2_3)) 3665 return -EINVAL; 3666 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER); 3667 break; 3668 case AH_ESP_V6_FLOW: 3669 case AH_V6_FLOW: 3670 case ESP_V6_FLOW: 3671 case SCTP_V6_FLOW: 3672 if ((nfc->data & RXH_L4_B_0_1) || 3673 (nfc->data & RXH_L4_B_2_3)) 3674 return -EINVAL; 3675 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER); 3676 break; 3677 case IPV4_FLOW: 3678 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) | 3679 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 3680 break; 3681 case IPV6_FLOW: 3682 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) | 3683 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 3684 break; 3685 default: 3686 return -EINVAL; 3687 } 3688 3689 if (flow_pctype) { 3690 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, 3691 flow_pctype)) | 3692 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, 3693 flow_pctype)) << 32); 3694 i_set = i40e_get_rss_hash_bits(nfc, i_setc); 3695 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_pctype), 3696 (u32)i_set); 3697 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_pctype), 3698 (u32)(i_set >> 32)); 3699 hena |= BIT_ULL(flow_pctype); 3700 } 3701 3702 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena); 3703 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32)); 3704 i40e_flush(hw); 3705 3706 return 0; 3707 } 3708 3709 /** 3710 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry 3711 * @vsi: Pointer to the targeted VSI 3712 * @input: The filter to update or NULL to indicate deletion 3713 * @sw_idx: Software index to the filter 3714 * @cmd: The command to get or set Rx flow classification rules 3715 * 3716 * This function updates (or deletes) a Flow Director entry from 3717 * the hlist of the corresponding PF 3718 * 3719 * Returns 0 on success 3720 **/ 3721 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi, 3722 struct i40e_fdir_filter *input, 3723 u16 sw_idx, 3724 struct ethtool_rxnfc *cmd) 3725 { 3726 struct i40e_fdir_filter *rule, *parent; 3727 struct i40e_pf *pf = vsi->back; 3728 struct hlist_node *node2; 3729 int err = -EINVAL; 3730 3731 parent = NULL; 3732 rule = NULL; 3733 3734 hlist_for_each_entry_safe(rule, node2, 3735 &pf->fdir_filter_list, fdir_node) { 3736 /* hash found, or no matching entry */ 3737 if (rule->fd_id >= sw_idx) 3738 break; 3739 parent = rule; 3740 } 3741 3742 /* if there is an old rule occupying our place remove it */ 3743 if (rule && (rule->fd_id == sw_idx)) { 3744 /* Remove this rule, since we're either deleting it, or 3745 * replacing it. 3746 */ 3747 err = i40e_add_del_fdir(vsi, rule, false); 3748 hlist_del(&rule->fdir_node); 3749 kfree(rule); 3750 pf->fdir_pf_active_filters--; 3751 } 3752 3753 /* If we weren't given an input, this is a delete, so just return the 3754 * error code indicating if there was an entry at the requested slot 3755 */ 3756 if (!input) 3757 return err; 3758 3759 /* Otherwise, install the new rule as requested */ 3760 INIT_HLIST_NODE(&input->fdir_node); 3761 3762 /* add filter to the list */ 3763 if (parent) 3764 hlist_add_behind(&input->fdir_node, &parent->fdir_node); 3765 else 3766 hlist_add_head(&input->fdir_node, 3767 &pf->fdir_filter_list); 3768 3769 /* update counts */ 3770 pf->fdir_pf_active_filters++; 3771 3772 return 0; 3773 } 3774 3775 /** 3776 * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table 3777 * @pf: pointer to PF structure 3778 * 3779 * This function searches the list of filters and determines which FLX_PIT 3780 * entries are still required. It will prune any entries which are no longer 3781 * in use after the deletion. 3782 **/ 3783 static void i40e_prune_flex_pit_list(struct i40e_pf *pf) 3784 { 3785 struct i40e_flex_pit *entry, *tmp; 3786 struct i40e_fdir_filter *rule; 3787 3788 /* First, we'll check the l3 table */ 3789 list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) { 3790 bool found = false; 3791 3792 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3793 if (rule->flow_type != IP_USER_FLOW) 3794 continue; 3795 if (rule->flex_filter && 3796 rule->flex_offset == entry->src_offset) { 3797 found = true; 3798 break; 3799 } 3800 } 3801 3802 /* If we didn't find the filter, then we can prune this entry 3803 * from the list. 3804 */ 3805 if (!found) { 3806 list_del(&entry->list); 3807 kfree(entry); 3808 } 3809 } 3810 3811 /* Followed by the L4 table */ 3812 list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) { 3813 bool found = false; 3814 3815 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3816 /* Skip this filter if it's L3, since we already 3817 * checked those in the above loop 3818 */ 3819 if (rule->flow_type == IP_USER_FLOW) 3820 continue; 3821 if (rule->flex_filter && 3822 rule->flex_offset == entry->src_offset) { 3823 found = true; 3824 break; 3825 } 3826 } 3827 3828 /* If we didn't find the filter, then we can prune this entry 3829 * from the list. 3830 */ 3831 if (!found) { 3832 list_del(&entry->list); 3833 kfree(entry); 3834 } 3835 } 3836 } 3837 3838 /** 3839 * i40e_del_fdir_entry - Deletes a Flow Director filter entry 3840 * @vsi: Pointer to the targeted VSI 3841 * @cmd: The command to get or set Rx flow classification rules 3842 * 3843 * The function removes a Flow Director filter entry from the 3844 * hlist of the corresponding PF 3845 * 3846 * Returns 0 on success 3847 */ 3848 static int i40e_del_fdir_entry(struct i40e_vsi *vsi, 3849 struct ethtool_rxnfc *cmd) 3850 { 3851 struct ethtool_rx_flow_spec *fsp = 3852 (struct ethtool_rx_flow_spec *)&cmd->fs; 3853 struct i40e_pf *pf = vsi->back; 3854 int ret = 0; 3855 3856 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 3857 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 3858 return -EBUSY; 3859 3860 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 3861 return -EBUSY; 3862 3863 ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd); 3864 3865 i40e_prune_flex_pit_list(pf); 3866 3867 i40e_fdir_check_and_reenable(pf); 3868 return ret; 3869 } 3870 3871 /** 3872 * i40e_unused_pit_index - Find an unused PIT index for given list 3873 * @pf: the PF data structure 3874 * 3875 * Find the first unused flexible PIT index entry. We search both the L3 and 3876 * L4 flexible PIT lists so that the returned index is unique and unused by 3877 * either currently programmed L3 or L4 filters. We use a bit field as storage 3878 * to track which indexes are already used. 3879 **/ 3880 static u8 i40e_unused_pit_index(struct i40e_pf *pf) 3881 { 3882 unsigned long available_index = 0xFF; 3883 struct i40e_flex_pit *entry; 3884 3885 /* We need to make sure that the new index isn't in use by either L3 3886 * or L4 filters so that IP_USER_FLOW filters can program both L3 and 3887 * L4 to use the same index. 3888 */ 3889 3890 list_for_each_entry(entry, &pf->l4_flex_pit_list, list) 3891 clear_bit(entry->pit_index, &available_index); 3892 3893 list_for_each_entry(entry, &pf->l3_flex_pit_list, list) 3894 clear_bit(entry->pit_index, &available_index); 3895 3896 return find_first_bit(&available_index, 8); 3897 } 3898 3899 /** 3900 * i40e_find_flex_offset - Find an existing flex src_offset 3901 * @flex_pit_list: L3 or L4 flex PIT list 3902 * @src_offset: new src_offset to find 3903 * 3904 * Searches the flex_pit_list for an existing offset. If no offset is 3905 * currently programmed, then this will return an ERR_PTR if there is no space 3906 * to add a new offset, otherwise it returns NULL. 3907 **/ 3908 static 3909 struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list, 3910 u16 src_offset) 3911 { 3912 struct i40e_flex_pit *entry; 3913 int size = 0; 3914 3915 /* Search for the src_offset first. If we find a matching entry 3916 * already programmed, we can simply re-use it. 3917 */ 3918 list_for_each_entry(entry, flex_pit_list, list) { 3919 size++; 3920 if (entry->src_offset == src_offset) 3921 return entry; 3922 } 3923 3924 /* If we haven't found an entry yet, then the provided src offset has 3925 * not yet been programmed. We will program the src offset later on, 3926 * but we need to indicate whether there is enough space to do so 3927 * here. We'll make use of ERR_PTR for this purpose. 3928 */ 3929 if (size >= I40E_FLEX_PIT_TABLE_SIZE) 3930 return ERR_PTR(-ENOSPC); 3931 3932 return NULL; 3933 } 3934 3935 /** 3936 * i40e_add_flex_offset - Add src_offset to flex PIT table list 3937 * @flex_pit_list: L3 or L4 flex PIT list 3938 * @src_offset: new src_offset to add 3939 * @pit_index: the PIT index to program 3940 * 3941 * This function programs the new src_offset to the list. It is expected that 3942 * i40e_find_flex_offset has already been tried and returned NULL, indicating 3943 * that this offset is not programmed, and that the list has enough space to 3944 * store another offset. 3945 * 3946 * Returns 0 on success, and negative value on error. 3947 **/ 3948 static int i40e_add_flex_offset(struct list_head *flex_pit_list, 3949 u16 src_offset, 3950 u8 pit_index) 3951 { 3952 struct i40e_flex_pit *new_pit, *entry; 3953 3954 new_pit = kzalloc(sizeof(*entry), GFP_KERNEL); 3955 if (!new_pit) 3956 return -ENOMEM; 3957 3958 new_pit->src_offset = src_offset; 3959 new_pit->pit_index = pit_index; 3960 3961 /* We need to insert this item such that the list is sorted by 3962 * src_offset in ascending order. 3963 */ 3964 list_for_each_entry(entry, flex_pit_list, list) { 3965 if (new_pit->src_offset < entry->src_offset) { 3966 list_add_tail(&new_pit->list, &entry->list); 3967 return 0; 3968 } 3969 3970 /* If we found an entry with our offset already programmed we 3971 * can simply return here, after freeing the memory. However, 3972 * if the pit_index does not match we need to report an error. 3973 */ 3974 if (new_pit->src_offset == entry->src_offset) { 3975 int err = 0; 3976 3977 /* If the PIT index is not the same we can't re-use 3978 * the entry, so we must report an error. 3979 */ 3980 if (new_pit->pit_index != entry->pit_index) 3981 err = -EINVAL; 3982 3983 kfree(new_pit); 3984 return err; 3985 } 3986 } 3987 3988 /* If we reached here, then we haven't yet added the item. This means 3989 * that we should add the item at the end of the list. 3990 */ 3991 list_add_tail(&new_pit->list, flex_pit_list); 3992 return 0; 3993 } 3994 3995 /** 3996 * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table 3997 * @pf: Pointer to the PF structure 3998 * @flex_pit_list: list of flexible src offsets in use 3999 * @flex_pit_start: index to first entry for this section of the table 4000 * 4001 * In order to handle flexible data, the hardware uses a table of values 4002 * called the FLX_PIT table. This table is used to indicate which sections of 4003 * the input correspond to what PIT index values. Unfortunately, hardware is 4004 * very restrictive about programming this table. Entries must be ordered by 4005 * src_offset in ascending order, without duplicates. Additionally, unused 4006 * entries must be set to the unused index value, and must have valid size and 4007 * length according to the src_offset ordering. 4008 * 4009 * This function will reprogram the FLX_PIT register from a book-keeping 4010 * structure that we guarantee is already ordered correctly, and has no more 4011 * than 3 entries. 4012 * 4013 * To make things easier, we only support flexible values of one word length, 4014 * rather than allowing variable length flexible values. 4015 **/ 4016 static void __i40e_reprogram_flex_pit(struct i40e_pf *pf, 4017 struct list_head *flex_pit_list, 4018 int flex_pit_start) 4019 { 4020 struct i40e_flex_pit *entry = NULL; 4021 u16 last_offset = 0; 4022 int i = 0, j = 0; 4023 4024 /* First, loop over the list of flex PIT entries, and reprogram the 4025 * registers. 4026 */ 4027 list_for_each_entry(entry, flex_pit_list, list) { 4028 /* We have to be careful when programming values for the 4029 * largest SRC_OFFSET value. It is possible that adding 4030 * additional empty values at the end would overflow the space 4031 * for the SRC_OFFSET in the FLX_PIT register. To avoid this, 4032 * we check here and add the empty values prior to adding the 4033 * largest value. 4034 * 4035 * To determine this, we will use a loop from i+1 to 3, which 4036 * will determine whether the unused entries would have valid 4037 * SRC_OFFSET. Note that there cannot be extra entries past 4038 * this value, because the only valid values would have been 4039 * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not 4040 * have been added to the list in the first place. 4041 */ 4042 for (j = i + 1; j < 3; j++) { 4043 u16 offset = entry->src_offset + j; 4044 int index = flex_pit_start + i; 4045 u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 4046 1, 4047 offset - 3); 4048 4049 if (offset > I40E_MAX_FLEX_SRC_OFFSET) { 4050 i40e_write_rx_ctl(&pf->hw, 4051 I40E_PRTQF_FLX_PIT(index), 4052 value); 4053 i++; 4054 } 4055 } 4056 4057 /* Now, we can program the actual value into the table */ 4058 i40e_write_rx_ctl(&pf->hw, 4059 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 4060 I40E_FLEX_PREP_VAL(entry->pit_index + 50, 4061 1, 4062 entry->src_offset)); 4063 i++; 4064 } 4065 4066 /* In order to program the last entries in the table, we need to 4067 * determine the valid offset. If the list is empty, we'll just start 4068 * with 0. Otherwise, we'll start with the last item offset and add 1. 4069 * This ensures that all entries have valid sizes. If we don't do this 4070 * correctly, the hardware will disable flexible field parsing. 4071 */ 4072 if (!list_empty(flex_pit_list)) 4073 last_offset = list_prev_entry(entry, list)->src_offset + 1; 4074 4075 for (; i < 3; i++, last_offset++) { 4076 i40e_write_rx_ctl(&pf->hw, 4077 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 4078 I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 4079 1, 4080 last_offset)); 4081 } 4082 } 4083 4084 /** 4085 * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change 4086 * @pf: pointer to the PF structure 4087 * 4088 * This function reprograms both the L3 and L4 FLX_PIT tables. See the 4089 * internal helper function for implementation details. 4090 **/ 4091 static void i40e_reprogram_flex_pit(struct i40e_pf *pf) 4092 { 4093 __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list, 4094 I40E_FLEX_PIT_IDX_START_L3); 4095 4096 __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list, 4097 I40E_FLEX_PIT_IDX_START_L4); 4098 4099 /* We also need to program the L3 and L4 GLQF ORT register */ 4100 i40e_write_rx_ctl(&pf->hw, 4101 I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX), 4102 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3, 4103 3, 1)); 4104 4105 i40e_write_rx_ctl(&pf->hw, 4106 I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX), 4107 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4, 4108 3, 1)); 4109 } 4110 4111 /** 4112 * i40e_flow_str - Converts a flow_type into a human readable string 4113 * @fsp: the flow specification 4114 * 4115 * Currently only flow types we support are included here, and the string 4116 * value attempts to match what ethtool would use to configure this flow type. 4117 **/ 4118 static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp) 4119 { 4120 switch (fsp->flow_type & ~FLOW_EXT) { 4121 case TCP_V4_FLOW: 4122 return "tcp4"; 4123 case UDP_V4_FLOW: 4124 return "udp4"; 4125 case SCTP_V4_FLOW: 4126 return "sctp4"; 4127 case IP_USER_FLOW: 4128 return "ip4"; 4129 case TCP_V6_FLOW: 4130 return "tcp6"; 4131 case UDP_V6_FLOW: 4132 return "udp6"; 4133 case SCTP_V6_FLOW: 4134 return "sctp6"; 4135 case IPV6_USER_FLOW: 4136 return "ip6"; 4137 default: 4138 return "unknown"; 4139 } 4140 } 4141 4142 /** 4143 * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index 4144 * @pit_index: PIT index to convert 4145 * 4146 * Returns the mask for a given PIT index. Will return 0 if the pit_index is 4147 * of range. 4148 **/ 4149 static u64 i40e_pit_index_to_mask(int pit_index) 4150 { 4151 switch (pit_index) { 4152 case 0: 4153 return I40E_FLEX_50_MASK; 4154 case 1: 4155 return I40E_FLEX_51_MASK; 4156 case 2: 4157 return I40E_FLEX_52_MASK; 4158 case 3: 4159 return I40E_FLEX_53_MASK; 4160 case 4: 4161 return I40E_FLEX_54_MASK; 4162 case 5: 4163 return I40E_FLEX_55_MASK; 4164 case 6: 4165 return I40E_FLEX_56_MASK; 4166 case 7: 4167 return I40E_FLEX_57_MASK; 4168 default: 4169 return 0; 4170 } 4171 } 4172 4173 /** 4174 * i40e_print_input_set - Show changes between two input sets 4175 * @vsi: the vsi being configured 4176 * @old: the old input set 4177 * @new: the new input set 4178 * 4179 * Print the difference between old and new input sets by showing which series 4180 * of words are toggled on or off. Only displays the bits we actually support 4181 * changing. 4182 **/ 4183 static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new) 4184 { 4185 struct i40e_pf *pf = vsi->back; 4186 bool old_value, new_value; 4187 int i; 4188 4189 old_value = !!(old & I40E_L3_SRC_MASK); 4190 new_value = !!(new & I40E_L3_SRC_MASK); 4191 if (old_value != new_value) 4192 netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n", 4193 old_value ? "ON" : "OFF", 4194 new_value ? "ON" : "OFF"); 4195 4196 old_value = !!(old & I40E_L3_DST_MASK); 4197 new_value = !!(new & I40E_L3_DST_MASK); 4198 if (old_value != new_value) 4199 netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n", 4200 old_value ? "ON" : "OFF", 4201 new_value ? "ON" : "OFF"); 4202 4203 old_value = !!(old & I40E_L4_SRC_MASK); 4204 new_value = !!(new & I40E_L4_SRC_MASK); 4205 if (old_value != new_value) 4206 netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n", 4207 old_value ? "ON" : "OFF", 4208 new_value ? "ON" : "OFF"); 4209 4210 old_value = !!(old & I40E_L4_DST_MASK); 4211 new_value = !!(new & I40E_L4_DST_MASK); 4212 if (old_value != new_value) 4213 netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n", 4214 old_value ? "ON" : "OFF", 4215 new_value ? "ON" : "OFF"); 4216 4217 old_value = !!(old & I40E_VERIFY_TAG_MASK); 4218 new_value = !!(new & I40E_VERIFY_TAG_MASK); 4219 if (old_value != new_value) 4220 netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n", 4221 old_value ? "ON" : "OFF", 4222 new_value ? "ON" : "OFF"); 4223 4224 /* Show change of flexible filter entries */ 4225 for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) { 4226 u64 flex_mask = i40e_pit_index_to_mask(i); 4227 4228 old_value = !!(old & flex_mask); 4229 new_value = !!(new & flex_mask); 4230 if (old_value != new_value) 4231 netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n", 4232 i, 4233 old_value ? "ON" : "OFF", 4234 new_value ? "ON" : "OFF"); 4235 } 4236 4237 netif_info(pf, drv, vsi->netdev, " Current input set: %0llx\n", 4238 old); 4239 netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n", 4240 new); 4241 } 4242 4243 /** 4244 * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid 4245 * @vsi: pointer to the targeted VSI 4246 * @fsp: pointer to Rx flow specification 4247 * @userdef: userdefined data from flow specification 4248 * 4249 * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support 4250 * for partial matches exists with a few limitations. First, hardware only 4251 * supports masking by word boundary (2 bytes) and not per individual bit. 4252 * Second, hardware is limited to using one mask for a flow type and cannot 4253 * use a separate mask for each filter. 4254 * 4255 * To support these limitations, if we already have a configured filter for 4256 * the specified type, this function enforces that new filters of the type 4257 * match the configured input set. Otherwise, if we do not have a filter of 4258 * the specified type, we allow the input set to be updated to match the 4259 * desired filter. 4260 * 4261 * To help ensure that administrators understand why filters weren't displayed 4262 * as supported, we print a diagnostic message displaying how the input set 4263 * would change and warning to delete the preexisting filters if required. 4264 * 4265 * Returns 0 on successful input set match, and a negative return code on 4266 * failure. 4267 **/ 4268 static int i40e_check_fdir_input_set(struct i40e_vsi *vsi, 4269 struct ethtool_rx_flow_spec *fsp, 4270 struct i40e_rx_flow_userdef *userdef) 4271 { 4272 static const __be32 ipv6_full_mask[4] = {cpu_to_be32(0xffffffff), 4273 cpu_to_be32(0xffffffff), cpu_to_be32(0xffffffff), 4274 cpu_to_be32(0xffffffff)}; 4275 struct ethtool_tcpip6_spec *tcp_ip6_spec; 4276 struct ethtool_usrip6_spec *usr_ip6_spec; 4277 struct ethtool_tcpip4_spec *tcp_ip4_spec; 4278 struct ethtool_usrip4_spec *usr_ip4_spec; 4279 struct i40e_pf *pf = vsi->back; 4280 u64 current_mask, new_mask; 4281 bool new_flex_offset = false; 4282 bool flex_l3 = false; 4283 u16 *fdir_filter_count; 4284 u16 index, src_offset = 0; 4285 u8 pit_index = 0; 4286 int err; 4287 4288 switch (fsp->flow_type & ~FLOW_EXT) { 4289 case SCTP_V4_FLOW: 4290 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP; 4291 fdir_filter_count = &pf->fd_sctp4_filter_cnt; 4292 break; 4293 case TCP_V4_FLOW: 4294 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 4295 fdir_filter_count = &pf->fd_tcp4_filter_cnt; 4296 break; 4297 case UDP_V4_FLOW: 4298 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 4299 fdir_filter_count = &pf->fd_udp4_filter_cnt; 4300 break; 4301 case SCTP_V6_FLOW: 4302 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP; 4303 fdir_filter_count = &pf->fd_sctp6_filter_cnt; 4304 break; 4305 case TCP_V6_FLOW: 4306 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 4307 fdir_filter_count = &pf->fd_tcp6_filter_cnt; 4308 break; 4309 case UDP_V6_FLOW: 4310 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 4311 fdir_filter_count = &pf->fd_udp6_filter_cnt; 4312 break; 4313 case IP_USER_FLOW: 4314 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER; 4315 fdir_filter_count = &pf->fd_ip4_filter_cnt; 4316 flex_l3 = true; 4317 break; 4318 case IPV6_USER_FLOW: 4319 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER; 4320 fdir_filter_count = &pf->fd_ip6_filter_cnt; 4321 flex_l3 = true; 4322 break; 4323 default: 4324 return -EOPNOTSUPP; 4325 } 4326 4327 /* Read the current input set from register memory. */ 4328 current_mask = i40e_read_fd_input_set(pf, index); 4329 new_mask = current_mask; 4330 4331 /* Determine, if any, the required changes to the input set in order 4332 * to support the provided mask. 4333 * 4334 * Hardware only supports masking at word (2 byte) granularity and does 4335 * not support full bitwise masking. This implementation simplifies 4336 * even further and only supports fully enabled or fully disabled 4337 * masks for each field, even though we could split the ip4src and 4338 * ip4dst fields. 4339 */ 4340 switch (fsp->flow_type & ~FLOW_EXT) { 4341 case SCTP_V4_FLOW: 4342 new_mask &= ~I40E_VERIFY_TAG_MASK; 4343 fallthrough; 4344 case TCP_V4_FLOW: 4345 case UDP_V4_FLOW: 4346 tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec; 4347 4348 /* IPv4 source address */ 4349 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 4350 new_mask |= I40E_L3_SRC_MASK; 4351 else if (!tcp_ip4_spec->ip4src) 4352 new_mask &= ~I40E_L3_SRC_MASK; 4353 else 4354 return -EOPNOTSUPP; 4355 4356 /* IPv4 destination address */ 4357 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 4358 new_mask |= I40E_L3_DST_MASK; 4359 else if (!tcp_ip4_spec->ip4dst) 4360 new_mask &= ~I40E_L3_DST_MASK; 4361 else 4362 return -EOPNOTSUPP; 4363 4364 /* L4 source port */ 4365 if (tcp_ip4_spec->psrc == htons(0xFFFF)) 4366 new_mask |= I40E_L4_SRC_MASK; 4367 else if (!tcp_ip4_spec->psrc) 4368 new_mask &= ~I40E_L4_SRC_MASK; 4369 else 4370 return -EOPNOTSUPP; 4371 4372 /* L4 destination port */ 4373 if (tcp_ip4_spec->pdst == htons(0xFFFF)) 4374 new_mask |= I40E_L4_DST_MASK; 4375 else if (!tcp_ip4_spec->pdst) 4376 new_mask &= ~I40E_L4_DST_MASK; 4377 else 4378 return -EOPNOTSUPP; 4379 4380 /* Filtering on Type of Service is not supported. */ 4381 if (tcp_ip4_spec->tos) 4382 return -EOPNOTSUPP; 4383 4384 break; 4385 case SCTP_V6_FLOW: 4386 new_mask &= ~I40E_VERIFY_TAG_MASK; 4387 fallthrough; 4388 case TCP_V6_FLOW: 4389 case UDP_V6_FLOW: 4390 tcp_ip6_spec = &fsp->m_u.tcp_ip6_spec; 4391 4392 /* Check if user provided IPv6 source address. */ 4393 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6src, 4394 (struct in6_addr *)&ipv6_full_mask)) 4395 new_mask |= I40E_L3_V6_SRC_MASK; 4396 else if (ipv6_addr_any((struct in6_addr *) 4397 &tcp_ip6_spec->ip6src)) 4398 new_mask &= ~I40E_L3_V6_SRC_MASK; 4399 else 4400 return -EOPNOTSUPP; 4401 4402 /* Check if user provided destination address. */ 4403 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6dst, 4404 (struct in6_addr *)&ipv6_full_mask)) 4405 new_mask |= I40E_L3_V6_DST_MASK; 4406 else if (ipv6_addr_any((struct in6_addr *) 4407 &tcp_ip6_spec->ip6dst)) 4408 new_mask &= ~I40E_L3_V6_DST_MASK; 4409 else 4410 return -EOPNOTSUPP; 4411 4412 /* L4 source port */ 4413 if (tcp_ip6_spec->psrc == htons(0xFFFF)) 4414 new_mask |= I40E_L4_SRC_MASK; 4415 else if (!tcp_ip6_spec->psrc) 4416 new_mask &= ~I40E_L4_SRC_MASK; 4417 else 4418 return -EOPNOTSUPP; 4419 4420 /* L4 destination port */ 4421 if (tcp_ip6_spec->pdst == htons(0xFFFF)) 4422 new_mask |= I40E_L4_DST_MASK; 4423 else if (!tcp_ip6_spec->pdst) 4424 new_mask &= ~I40E_L4_DST_MASK; 4425 else 4426 return -EOPNOTSUPP; 4427 4428 /* Filtering on Traffic Classes is not supported. */ 4429 if (tcp_ip6_spec->tclass) 4430 return -EOPNOTSUPP; 4431 break; 4432 case IP_USER_FLOW: 4433 usr_ip4_spec = &fsp->m_u.usr_ip4_spec; 4434 4435 /* IPv4 source address */ 4436 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 4437 new_mask |= I40E_L3_SRC_MASK; 4438 else if (!usr_ip4_spec->ip4src) 4439 new_mask &= ~I40E_L3_SRC_MASK; 4440 else 4441 return -EOPNOTSUPP; 4442 4443 /* IPv4 destination address */ 4444 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 4445 new_mask |= I40E_L3_DST_MASK; 4446 else if (!usr_ip4_spec->ip4dst) 4447 new_mask &= ~I40E_L3_DST_MASK; 4448 else 4449 return -EOPNOTSUPP; 4450 4451 /* First 4 bytes of L4 header */ 4452 if (usr_ip4_spec->l4_4_bytes == htonl(0xFFFFFFFF)) 4453 new_mask |= I40E_L4_SRC_MASK | I40E_L4_DST_MASK; 4454 else if (!usr_ip4_spec->l4_4_bytes) 4455 new_mask &= ~(I40E_L4_SRC_MASK | I40E_L4_DST_MASK); 4456 else 4457 return -EOPNOTSUPP; 4458 4459 /* Filtering on Type of Service is not supported. */ 4460 if (usr_ip4_spec->tos) 4461 return -EOPNOTSUPP; 4462 4463 /* Filtering on IP version is not supported */ 4464 if (usr_ip4_spec->ip_ver) 4465 return -EINVAL; 4466 4467 /* Filtering on L4 protocol is not supported */ 4468 if (usr_ip4_spec->proto) 4469 return -EINVAL; 4470 4471 break; 4472 case IPV6_USER_FLOW: 4473 usr_ip6_spec = &fsp->m_u.usr_ip6_spec; 4474 4475 /* Check if user provided IPv6 source address. */ 4476 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6src, 4477 (struct in6_addr *)&ipv6_full_mask)) 4478 new_mask |= I40E_L3_V6_SRC_MASK; 4479 else if (ipv6_addr_any((struct in6_addr *) 4480 &usr_ip6_spec->ip6src)) 4481 new_mask &= ~I40E_L3_V6_SRC_MASK; 4482 else 4483 return -EOPNOTSUPP; 4484 4485 /* Check if user provided destination address. */ 4486 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6dst, 4487 (struct in6_addr *)&ipv6_full_mask)) 4488 new_mask |= I40E_L3_V6_DST_MASK; 4489 else if (ipv6_addr_any((struct in6_addr *) 4490 &usr_ip6_spec->ip6src)) 4491 new_mask &= ~I40E_L3_V6_DST_MASK; 4492 else 4493 return -EOPNOTSUPP; 4494 4495 if (usr_ip6_spec->l4_4_bytes == htonl(0xFFFFFFFF)) 4496 new_mask |= I40E_L4_SRC_MASK | I40E_L4_DST_MASK; 4497 else if (!usr_ip6_spec->l4_4_bytes) 4498 new_mask &= ~(I40E_L4_SRC_MASK | I40E_L4_DST_MASK); 4499 else 4500 return -EOPNOTSUPP; 4501 4502 /* Filtering on Traffic class is not supported. */ 4503 if (usr_ip6_spec->tclass) 4504 return -EOPNOTSUPP; 4505 4506 /* Filtering on L4 protocol is not supported */ 4507 if (usr_ip6_spec->l4_proto) 4508 return -EINVAL; 4509 4510 break; 4511 default: 4512 return -EOPNOTSUPP; 4513 } 4514 4515 if (fsp->flow_type & FLOW_EXT) { 4516 /* Allow only 802.1Q and no etype defined, as 4517 * later it's modified to 0x8100 4518 */ 4519 if (fsp->h_ext.vlan_etype != htons(ETH_P_8021Q) && 4520 fsp->h_ext.vlan_etype != 0) 4521 return -EOPNOTSUPP; 4522 if (fsp->m_ext.vlan_tci == htons(0xFFFF)) 4523 new_mask |= I40E_VLAN_SRC_MASK; 4524 else 4525 new_mask &= ~I40E_VLAN_SRC_MASK; 4526 } 4527 4528 /* First, clear all flexible filter entries */ 4529 new_mask &= ~I40E_FLEX_INPUT_MASK; 4530 4531 /* If we have a flexible filter, try to add this offset to the correct 4532 * flexible filter PIT list. Once finished, we can update the mask. 4533 * If the src_offset changed, we will get a new mask value which will 4534 * trigger an input set change. 4535 */ 4536 if (userdef->flex_filter) { 4537 struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL; 4538 4539 /* Flexible offset must be even, since the flexible payload 4540 * must be aligned on 2-byte boundary. 4541 */ 4542 if (userdef->flex_offset & 0x1) { 4543 dev_warn(&pf->pdev->dev, 4544 "Flexible data offset must be 2-byte aligned\n"); 4545 return -EINVAL; 4546 } 4547 4548 src_offset = userdef->flex_offset >> 1; 4549 4550 /* FLX_PIT source offset value is only so large */ 4551 if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) { 4552 dev_warn(&pf->pdev->dev, 4553 "Flexible data must reside within first 64 bytes of the packet payload\n"); 4554 return -EINVAL; 4555 } 4556 4557 /* See if this offset has already been programmed. If we get 4558 * an ERR_PTR, then the filter is not safe to add. Otherwise, 4559 * if we get a NULL pointer, this means we will need to add 4560 * the offset. 4561 */ 4562 flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list, 4563 src_offset); 4564 if (IS_ERR(flex_pit)) 4565 return PTR_ERR(flex_pit); 4566 4567 /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown) 4568 * packet types, and thus we need to program both L3 and L4 4569 * flexible values. These must have identical flexible index, 4570 * as otherwise we can't correctly program the input set. So 4571 * we'll find both an L3 and L4 index and make sure they are 4572 * the same. 4573 */ 4574 if (flex_l3) { 4575 l3_flex_pit = 4576 i40e_find_flex_offset(&pf->l3_flex_pit_list, 4577 src_offset); 4578 if (IS_ERR(l3_flex_pit)) 4579 return PTR_ERR(l3_flex_pit); 4580 4581 if (flex_pit) { 4582 /* If we already had a matching L4 entry, we 4583 * need to make sure that the L3 entry we 4584 * obtained uses the same index. 4585 */ 4586 if (l3_flex_pit) { 4587 if (l3_flex_pit->pit_index != 4588 flex_pit->pit_index) { 4589 return -EINVAL; 4590 } 4591 } else { 4592 new_flex_offset = true; 4593 } 4594 } else { 4595 flex_pit = l3_flex_pit; 4596 } 4597 } 4598 4599 /* If we didn't find an existing flex offset, we need to 4600 * program a new one. However, we don't immediately program it 4601 * here because we will wait to program until after we check 4602 * that it is safe to change the input set. 4603 */ 4604 if (!flex_pit) { 4605 new_flex_offset = true; 4606 pit_index = i40e_unused_pit_index(pf); 4607 } else { 4608 pit_index = flex_pit->pit_index; 4609 } 4610 4611 /* Update the mask with the new offset */ 4612 new_mask |= i40e_pit_index_to_mask(pit_index); 4613 } 4614 4615 /* If the mask and flexible filter offsets for this filter match the 4616 * currently programmed values we don't need any input set change, so 4617 * this filter is safe to install. 4618 */ 4619 if (new_mask == current_mask && !new_flex_offset) 4620 return 0; 4621 4622 netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n", 4623 i40e_flow_str(fsp)); 4624 i40e_print_input_set(vsi, current_mask, new_mask); 4625 if (new_flex_offset) { 4626 netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d", 4627 pit_index, src_offset); 4628 } 4629 4630 /* Hardware input sets are global across multiple ports, so even the 4631 * main port cannot change them when in MFP mode as this would impact 4632 * any filters on the other ports. 4633 */ 4634 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 4635 netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n"); 4636 return -EOPNOTSUPP; 4637 } 4638 4639 /* This filter requires us to update the input set. However, hardware 4640 * only supports one input set per flow type, and does not support 4641 * separate masks for each filter. This means that we can only support 4642 * a single mask for all filters of a specific type. 4643 * 4644 * If we have preexisting filters, they obviously depend on the 4645 * current programmed input set. Display a diagnostic message in this 4646 * case explaining why the filter could not be accepted. 4647 */ 4648 if (*fdir_filter_count) { 4649 netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n", 4650 i40e_flow_str(fsp), 4651 *fdir_filter_count); 4652 return -EOPNOTSUPP; 4653 } 4654 4655 i40e_write_fd_input_set(pf, index, new_mask); 4656 4657 /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented 4658 * frames. If we're programming the input set for IPv4/Other, we also 4659 * need to program the IPv4/Fragmented input set. Since we don't have 4660 * separate support, we'll always assume and enforce that the two flow 4661 * types must have matching input sets. 4662 */ 4663 if (index == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) 4664 i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4, 4665 new_mask); 4666 4667 /* Add the new offset and update table, if necessary */ 4668 if (new_flex_offset) { 4669 err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset, 4670 pit_index); 4671 if (err) 4672 return err; 4673 4674 if (flex_l3) { 4675 err = i40e_add_flex_offset(&pf->l3_flex_pit_list, 4676 src_offset, 4677 pit_index); 4678 if (err) 4679 return err; 4680 } 4681 4682 i40e_reprogram_flex_pit(pf); 4683 } 4684 4685 return 0; 4686 } 4687 4688 /** 4689 * i40e_match_fdir_filter - Return true of two filters match 4690 * @a: pointer to filter struct 4691 * @b: pointer to filter struct 4692 * 4693 * Returns true if the two filters match exactly the same criteria. I.e. they 4694 * match the same flow type and have the same parameters. We don't need to 4695 * check any input-set since all filters of the same flow type must use the 4696 * same input set. 4697 **/ 4698 static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a, 4699 struct i40e_fdir_filter *b) 4700 { 4701 /* The filters do not much if any of these criteria differ. */ 4702 if (a->dst_ip != b->dst_ip || 4703 a->src_ip != b->src_ip || 4704 a->dst_port != b->dst_port || 4705 a->src_port != b->src_port || 4706 a->flow_type != b->flow_type || 4707 a->ipl4_proto != b->ipl4_proto || 4708 a->vlan_tag != b->vlan_tag || 4709 a->vlan_etype != b->vlan_etype) 4710 return false; 4711 4712 return true; 4713 } 4714 4715 /** 4716 * i40e_disallow_matching_filters - Check that new filters differ 4717 * @vsi: pointer to the targeted VSI 4718 * @input: new filter to check 4719 * 4720 * Due to hardware limitations, it is not possible for two filters that match 4721 * similar criteria to be programmed at the same time. This is true for a few 4722 * reasons: 4723 * 4724 * (a) all filters matching a particular flow type must use the same input 4725 * set, that is they must match the same criteria. 4726 * (b) different flow types will never match the same packet, as the flow type 4727 * is decided by hardware before checking which rules apply. 4728 * (c) hardware has no way to distinguish which order filters apply in. 4729 * 4730 * Due to this, we can't really support using the location data to order 4731 * filters in the hardware parsing. It is technically possible for the user to 4732 * request two filters matching the same criteria but which select different 4733 * queues. In this case, rather than keep both filters in the list, we reject 4734 * the 2nd filter when the user requests adding it. 4735 * 4736 * This avoids needing to track location for programming the filter to 4737 * hardware, and ensures that we avoid some strange scenarios involving 4738 * deleting filters which match the same criteria. 4739 **/ 4740 static int i40e_disallow_matching_filters(struct i40e_vsi *vsi, 4741 struct i40e_fdir_filter *input) 4742 { 4743 struct i40e_pf *pf = vsi->back; 4744 struct i40e_fdir_filter *rule; 4745 struct hlist_node *node2; 4746 4747 /* Loop through every filter, and check that it doesn't match */ 4748 hlist_for_each_entry_safe(rule, node2, 4749 &pf->fdir_filter_list, fdir_node) { 4750 /* Don't check the filters match if they share the same fd_id, 4751 * since the new filter is actually just updating the target 4752 * of the old filter. 4753 */ 4754 if (rule->fd_id == input->fd_id) 4755 continue; 4756 4757 /* If any filters match, then print a warning message to the 4758 * kernel message buffer and bail out. 4759 */ 4760 if (i40e_match_fdir_filter(rule, input)) { 4761 dev_warn(&pf->pdev->dev, 4762 "Existing user defined filter %d already matches this flow.\n", 4763 rule->fd_id); 4764 return -EINVAL; 4765 } 4766 } 4767 4768 return 0; 4769 } 4770 4771 /** 4772 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters 4773 * @vsi: pointer to the targeted VSI 4774 * @cmd: command to get or set RX flow classification rules 4775 * 4776 * Add Flow Director filters for a specific flow spec based on their 4777 * protocol. Returns 0 if the filters were successfully added. 4778 **/ 4779 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi, 4780 struct ethtool_rxnfc *cmd) 4781 { 4782 struct i40e_rx_flow_userdef userdef; 4783 struct ethtool_rx_flow_spec *fsp; 4784 struct i40e_fdir_filter *input; 4785 u16 dest_vsi = 0, q_index = 0; 4786 struct i40e_pf *pf; 4787 int ret = -EINVAL; 4788 u8 dest_ctl; 4789 4790 if (!vsi) 4791 return -EINVAL; 4792 pf = vsi->back; 4793 4794 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED)) 4795 return -EOPNOTSUPP; 4796 4797 if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state)) 4798 return -ENOSPC; 4799 4800 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 4801 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 4802 return -EBUSY; 4803 4804 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 4805 return -EBUSY; 4806 4807 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs; 4808 4809 /* Parse the user-defined field */ 4810 if (i40e_parse_rx_flow_user_data(fsp, &userdef)) 4811 return -EINVAL; 4812 4813 /* Extended MAC field is not supported */ 4814 if (fsp->flow_type & FLOW_MAC_EXT) 4815 return -EINVAL; 4816 4817 ret = i40e_check_fdir_input_set(vsi, fsp, &userdef); 4818 if (ret) 4819 return ret; 4820 4821 if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort + 4822 pf->hw.func_caps.fd_filters_guaranteed)) { 4823 return -EINVAL; 4824 } 4825 4826 /* ring_cookie is either the drop index, or is a mask of the queue 4827 * index and VF id we wish to target. 4828 */ 4829 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) { 4830 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 4831 } else { 4832 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie); 4833 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie); 4834 4835 if (!vf) { 4836 if (ring >= vsi->num_queue_pairs) 4837 return -EINVAL; 4838 dest_vsi = vsi->id; 4839 } else { 4840 /* VFs are zero-indexed, so we subtract one here */ 4841 vf--; 4842 4843 if (vf >= pf->num_alloc_vfs) 4844 return -EINVAL; 4845 if (ring >= pf->vf[vf].num_queue_pairs) 4846 return -EINVAL; 4847 dest_vsi = pf->vf[vf].lan_vsi_id; 4848 } 4849 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX; 4850 q_index = ring; 4851 } 4852 4853 input = kzalloc(sizeof(*input), GFP_KERNEL); 4854 4855 if (!input) 4856 return -ENOMEM; 4857 4858 input->fd_id = fsp->location; 4859 input->q_index = q_index; 4860 input->dest_vsi = dest_vsi; 4861 input->dest_ctl = dest_ctl; 4862 input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID; 4863 input->cnt_index = I40E_FD_SB_STAT_IDX(pf->hw.pf_id); 4864 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4865 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4866 input->flow_type = fsp->flow_type & ~FLOW_EXT; 4867 4868 input->vlan_etype = fsp->h_ext.vlan_etype; 4869 if (!fsp->m_ext.vlan_etype && fsp->h_ext.vlan_tci) 4870 input->vlan_etype = cpu_to_be16(ETH_P_8021Q); 4871 if (fsp->m_ext.vlan_tci && input->vlan_etype) 4872 input->vlan_tag = fsp->h_ext.vlan_tci; 4873 if (input->flow_type == IPV6_USER_FLOW || 4874 input->flow_type == UDP_V6_FLOW || 4875 input->flow_type == TCP_V6_FLOW || 4876 input->flow_type == SCTP_V6_FLOW) { 4877 /* Reverse the src and dest notion, since the HW expects them 4878 * to be from Tx perspective where as the input from user is 4879 * from Rx filter view. 4880 */ 4881 input->ipl4_proto = fsp->h_u.usr_ip6_spec.l4_proto; 4882 input->dst_port = fsp->h_u.tcp_ip6_spec.psrc; 4883 input->src_port = fsp->h_u.tcp_ip6_spec.pdst; 4884 memcpy(input->dst_ip6, fsp->h_u.ah_ip6_spec.ip6src, 4885 sizeof(__be32) * 4); 4886 memcpy(input->src_ip6, fsp->h_u.ah_ip6_spec.ip6dst, 4887 sizeof(__be32) * 4); 4888 } else { 4889 /* Reverse the src and dest notion, since the HW expects them 4890 * to be from Tx perspective where as the input from user is 4891 * from Rx filter view. 4892 */ 4893 input->ipl4_proto = fsp->h_u.usr_ip4_spec.proto; 4894 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc; 4895 input->src_port = fsp->h_u.tcp_ip4_spec.pdst; 4896 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4897 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4898 } 4899 4900 if (userdef.flex_filter) { 4901 input->flex_filter = true; 4902 input->flex_word = cpu_to_be16(userdef.flex_word); 4903 input->flex_offset = userdef.flex_offset; 4904 } 4905 4906 /* Avoid programming two filters with identical match criteria. */ 4907 ret = i40e_disallow_matching_filters(vsi, input); 4908 if (ret) 4909 goto free_filter_memory; 4910 4911 /* Add the input filter to the fdir_input_list, possibly replacing 4912 * a previous filter. Do not free the input structure after adding it 4913 * to the list as this would cause a use-after-free bug. 4914 */ 4915 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL); 4916 ret = i40e_add_del_fdir(vsi, input, true); 4917 if (ret) 4918 goto remove_sw_rule; 4919 return 0; 4920 4921 remove_sw_rule: 4922 hlist_del(&input->fdir_node); 4923 pf->fdir_pf_active_filters--; 4924 free_filter_memory: 4925 kfree(input); 4926 return ret; 4927 } 4928 4929 /** 4930 * i40e_set_rxnfc - command to set RX flow classification rules 4931 * @netdev: network interface device structure 4932 * @cmd: ethtool rxnfc command 4933 * 4934 * Returns Success if the command is supported. 4935 **/ 4936 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd) 4937 { 4938 struct i40e_netdev_priv *np = netdev_priv(netdev); 4939 struct i40e_vsi *vsi = np->vsi; 4940 struct i40e_pf *pf = vsi->back; 4941 int ret = -EOPNOTSUPP; 4942 4943 switch (cmd->cmd) { 4944 case ETHTOOL_SRXFH: 4945 ret = i40e_set_rss_hash_opt(pf, cmd); 4946 break; 4947 case ETHTOOL_SRXCLSRLINS: 4948 ret = i40e_add_fdir_ethtool(vsi, cmd); 4949 break; 4950 case ETHTOOL_SRXCLSRLDEL: 4951 ret = i40e_del_fdir_entry(vsi, cmd); 4952 break; 4953 default: 4954 break; 4955 } 4956 4957 return ret; 4958 } 4959 4960 /** 4961 * i40e_max_channels - get Max number of combined channels supported 4962 * @vsi: vsi pointer 4963 **/ 4964 static unsigned int i40e_max_channels(struct i40e_vsi *vsi) 4965 { 4966 /* TODO: This code assumes DCB and FD is disabled for now. */ 4967 return vsi->alloc_queue_pairs; 4968 } 4969 4970 /** 4971 * i40e_get_channels - Get the current channels enabled and max supported etc. 4972 * @dev: network interface device structure 4973 * @ch: ethtool channels structure 4974 * 4975 * We don't support separate tx and rx queues as channels. The other count 4976 * represents how many queues are being used for control. max_combined counts 4977 * how many queue pairs we can support. They may not be mapped 1 to 1 with 4978 * q_vectors since we support a lot more queue pairs than q_vectors. 4979 **/ 4980 static void i40e_get_channels(struct net_device *dev, 4981 struct ethtool_channels *ch) 4982 { 4983 struct i40e_netdev_priv *np = netdev_priv(dev); 4984 struct i40e_vsi *vsi = np->vsi; 4985 struct i40e_pf *pf = vsi->back; 4986 4987 /* report maximum channels */ 4988 ch->max_combined = i40e_max_channels(vsi); 4989 4990 /* report info for other vector */ 4991 ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0; 4992 ch->max_other = ch->other_count; 4993 4994 /* Note: This code assumes DCB is disabled for now. */ 4995 ch->combined_count = vsi->num_queue_pairs; 4996 } 4997 4998 /** 4999 * i40e_set_channels - Set the new channels count. 5000 * @dev: network interface device structure 5001 * @ch: ethtool channels structure 5002 * 5003 * The new channels count may not be the same as requested by the user 5004 * since it gets rounded down to a power of 2 value. 5005 **/ 5006 static int i40e_set_channels(struct net_device *dev, 5007 struct ethtool_channels *ch) 5008 { 5009 const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 5010 struct i40e_netdev_priv *np = netdev_priv(dev); 5011 unsigned int count = ch->combined_count; 5012 struct i40e_vsi *vsi = np->vsi; 5013 struct i40e_pf *pf = vsi->back; 5014 struct i40e_fdir_filter *rule; 5015 struct hlist_node *node2; 5016 int new_count; 5017 int err = 0; 5018 5019 /* We do not support setting channels for any other VSI at present */ 5020 if (vsi->type != I40E_VSI_MAIN) 5021 return -EINVAL; 5022 5023 /* We do not support setting channels via ethtool when TCs are 5024 * configured through mqprio 5025 */ 5026 if (pf->flags & I40E_FLAG_TC_MQPRIO) 5027 return -EINVAL; 5028 5029 /* verify they are not requesting separate vectors */ 5030 if (!count || ch->rx_count || ch->tx_count) 5031 return -EINVAL; 5032 5033 /* verify other_count has not changed */ 5034 if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0)) 5035 return -EINVAL; 5036 5037 /* verify the number of channels does not exceed hardware limits */ 5038 if (count > i40e_max_channels(vsi)) 5039 return -EINVAL; 5040 5041 /* verify that the number of channels does not invalidate any current 5042 * flow director rules 5043 */ 5044 hlist_for_each_entry_safe(rule, node2, 5045 &pf->fdir_filter_list, fdir_node) { 5046 if (rule->dest_ctl != drop && count <= rule->q_index) { 5047 dev_warn(&pf->pdev->dev, 5048 "Existing user defined filter %d assigns flow to queue %d\n", 5049 rule->fd_id, rule->q_index); 5050 err = -EINVAL; 5051 } 5052 } 5053 5054 if (err) { 5055 dev_err(&pf->pdev->dev, 5056 "Existing filter rules must be deleted to reduce combined channel count to %d\n", 5057 count); 5058 return err; 5059 } 5060 5061 /* update feature limits from largest to smallest supported values */ 5062 /* TODO: Flow director limit, DCB etc */ 5063 5064 /* use rss_reconfig to rebuild with new queue count and update traffic 5065 * class queue mapping 5066 */ 5067 new_count = i40e_reconfig_rss_queues(pf, count); 5068 if (new_count > 0) 5069 return 0; 5070 else 5071 return -EINVAL; 5072 } 5073 5074 /** 5075 * i40e_get_rxfh_key_size - get the RSS hash key size 5076 * @netdev: network interface device structure 5077 * 5078 * Returns the table size. 5079 **/ 5080 static u32 i40e_get_rxfh_key_size(struct net_device *netdev) 5081 { 5082 return I40E_HKEY_ARRAY_SIZE; 5083 } 5084 5085 /** 5086 * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size 5087 * @netdev: network interface device structure 5088 * 5089 * Returns the table size. 5090 **/ 5091 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev) 5092 { 5093 return I40E_HLUT_ARRAY_SIZE; 5094 } 5095 5096 /** 5097 * i40e_get_rxfh - get the rx flow hash indirection table 5098 * @netdev: network interface device structure 5099 * @indir: indirection table 5100 * @key: hash key 5101 * @hfunc: hash function 5102 * 5103 * Reads the indirection table directly from the hardware. Returns 0 on 5104 * success. 5105 **/ 5106 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 5107 u8 *hfunc) 5108 { 5109 struct i40e_netdev_priv *np = netdev_priv(netdev); 5110 struct i40e_vsi *vsi = np->vsi; 5111 u8 *lut, *seed = NULL; 5112 int ret; 5113 u16 i; 5114 5115 if (hfunc) 5116 *hfunc = ETH_RSS_HASH_TOP; 5117 5118 if (!indir) 5119 return 0; 5120 5121 seed = key; 5122 lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 5123 if (!lut) 5124 return -ENOMEM; 5125 ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE); 5126 if (ret) 5127 goto out; 5128 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 5129 indir[i] = (u32)(lut[i]); 5130 5131 out: 5132 kfree(lut); 5133 5134 return ret; 5135 } 5136 5137 /** 5138 * i40e_set_rxfh - set the rx flow hash indirection table 5139 * @netdev: network interface device structure 5140 * @indir: indirection table 5141 * @key: hash key 5142 * @hfunc: hash function to use 5143 * 5144 * Returns -EINVAL if the table specifies an invalid queue id, otherwise 5145 * returns 0 after programming the table. 5146 **/ 5147 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir, 5148 const u8 *key, const u8 hfunc) 5149 { 5150 struct i40e_netdev_priv *np = netdev_priv(netdev); 5151 struct i40e_vsi *vsi = np->vsi; 5152 struct i40e_pf *pf = vsi->back; 5153 u8 *seed = NULL; 5154 u16 i; 5155 5156 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) 5157 return -EOPNOTSUPP; 5158 5159 if (key) { 5160 if (!vsi->rss_hkey_user) { 5161 vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE, 5162 GFP_KERNEL); 5163 if (!vsi->rss_hkey_user) 5164 return -ENOMEM; 5165 } 5166 memcpy(vsi->rss_hkey_user, key, I40E_HKEY_ARRAY_SIZE); 5167 seed = vsi->rss_hkey_user; 5168 } 5169 if (!vsi->rss_lut_user) { 5170 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 5171 if (!vsi->rss_lut_user) 5172 return -ENOMEM; 5173 } 5174 5175 /* Each 32 bits pointed by 'indir' is stored with a lut entry */ 5176 if (indir) 5177 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 5178 vsi->rss_lut_user[i] = (u8)(indir[i]); 5179 else 5180 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE, 5181 vsi->rss_size); 5182 5183 return i40e_config_rss(vsi, seed, vsi->rss_lut_user, 5184 I40E_HLUT_ARRAY_SIZE); 5185 } 5186 5187 /** 5188 * i40e_get_priv_flags - report device private flags 5189 * @dev: network interface device structure 5190 * 5191 * The get string set count and the string set should be matched for each 5192 * flag returned. Add new strings for each flag to the i40e_gstrings_priv_flags 5193 * array. 5194 * 5195 * Returns a u32 bitmap of flags. 5196 **/ 5197 static u32 i40e_get_priv_flags(struct net_device *dev) 5198 { 5199 struct i40e_netdev_priv *np = netdev_priv(dev); 5200 struct i40e_vsi *vsi = np->vsi; 5201 struct i40e_pf *pf = vsi->back; 5202 u32 i, j, ret_flags = 0; 5203 5204 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 5205 const struct i40e_priv_flags *priv_flags; 5206 5207 priv_flags = &i40e_gstrings_priv_flags[i]; 5208 5209 if (priv_flags->flag & pf->flags) 5210 ret_flags |= BIT(i); 5211 } 5212 5213 if (pf->hw.pf_id != 0) 5214 return ret_flags; 5215 5216 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 5217 const struct i40e_priv_flags *priv_flags; 5218 5219 priv_flags = &i40e_gl_gstrings_priv_flags[j]; 5220 5221 if (priv_flags->flag & pf->flags) 5222 ret_flags |= BIT(i + j); 5223 } 5224 5225 return ret_flags; 5226 } 5227 5228 /** 5229 * i40e_set_priv_flags - set private flags 5230 * @dev: network interface device structure 5231 * @flags: bit flags to be set 5232 **/ 5233 static int i40e_set_priv_flags(struct net_device *dev, u32 flags) 5234 { 5235 struct i40e_netdev_priv *np = netdev_priv(dev); 5236 u64 orig_flags, new_flags, changed_flags; 5237 enum i40e_admin_queue_err adq_err; 5238 struct i40e_vsi *vsi = np->vsi; 5239 struct i40e_pf *pf = vsi->back; 5240 u32 reset_needed = 0; 5241 i40e_status status; 5242 u32 i, j; 5243 5244 orig_flags = READ_ONCE(pf->flags); 5245 new_flags = orig_flags; 5246 5247 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 5248 const struct i40e_priv_flags *priv_flags; 5249 5250 priv_flags = &i40e_gstrings_priv_flags[i]; 5251 5252 if (flags & BIT(i)) 5253 new_flags |= priv_flags->flag; 5254 else 5255 new_flags &= ~(priv_flags->flag); 5256 5257 /* If this is a read-only flag, it can't be changed */ 5258 if (priv_flags->read_only && 5259 ((orig_flags ^ new_flags) & ~BIT(i))) 5260 return -EOPNOTSUPP; 5261 } 5262 5263 if (pf->hw.pf_id != 0) 5264 goto flags_complete; 5265 5266 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 5267 const struct i40e_priv_flags *priv_flags; 5268 5269 priv_flags = &i40e_gl_gstrings_priv_flags[j]; 5270 5271 if (flags & BIT(i + j)) 5272 new_flags |= priv_flags->flag; 5273 else 5274 new_flags &= ~(priv_flags->flag); 5275 5276 /* If this is a read-only flag, it can't be changed */ 5277 if (priv_flags->read_only && 5278 ((orig_flags ^ new_flags) & ~BIT(i))) 5279 return -EOPNOTSUPP; 5280 } 5281 5282 flags_complete: 5283 changed_flags = orig_flags ^ new_flags; 5284 5285 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) 5286 reset_needed = I40E_PF_RESET_AND_REBUILD_FLAG; 5287 if (changed_flags & (I40E_FLAG_VEB_STATS_ENABLED | 5288 I40E_FLAG_LEGACY_RX | I40E_FLAG_SOURCE_PRUNING_DISABLED)) 5289 reset_needed = BIT(__I40E_PF_RESET_REQUESTED); 5290 5291 /* Before we finalize any flag changes, we need to perform some 5292 * checks to ensure that the changes are supported and safe. 5293 */ 5294 5295 /* ATR eviction is not supported on all devices */ 5296 if ((new_flags & I40E_FLAG_HW_ATR_EVICT_ENABLED) && 5297 !(pf->hw_features & I40E_HW_ATR_EVICT_CAPABLE)) 5298 return -EOPNOTSUPP; 5299 5300 /* If the driver detected FW LLDP was disabled on init, this flag could 5301 * be set, however we do not support _changing_ the flag: 5302 * - on XL710 if NPAR is enabled or FW API version < 1.7 5303 * - on X722 with FW API version < 1.6 5304 * There are situations where older FW versions/NPAR enabled PFs could 5305 * disable LLDP, however we _must_ not allow the user to enable/disable 5306 * LLDP with this flag on unsupported FW versions. 5307 */ 5308 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) { 5309 if (!(pf->hw.flags & I40E_HW_FLAG_FW_LLDP_STOPPABLE)) { 5310 dev_warn(&pf->pdev->dev, 5311 "Device does not support changing FW LLDP\n"); 5312 return -EOPNOTSUPP; 5313 } 5314 } 5315 5316 if (changed_flags & I40E_FLAG_RS_FEC && 5317 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && 5318 pf->hw.device_id != I40E_DEV_ID_25G_B) { 5319 dev_warn(&pf->pdev->dev, 5320 "Device does not support changing FEC configuration\n"); 5321 return -EOPNOTSUPP; 5322 } 5323 5324 if (changed_flags & I40E_FLAG_BASE_R_FEC && 5325 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && 5326 pf->hw.device_id != I40E_DEV_ID_25G_B && 5327 pf->hw.device_id != I40E_DEV_ID_KX_X722) { 5328 dev_warn(&pf->pdev->dev, 5329 "Device does not support changing FEC configuration\n"); 5330 return -EOPNOTSUPP; 5331 } 5332 5333 /* Process any additional changes needed as a result of flag changes. 5334 * The changed_flags value reflects the list of bits that were 5335 * changed in the code above. 5336 */ 5337 5338 /* Flush current ATR settings if ATR was disabled */ 5339 if ((changed_flags & I40E_FLAG_FD_ATR_ENABLED) && 5340 !(new_flags & I40E_FLAG_FD_ATR_ENABLED)) { 5341 set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state); 5342 set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state); 5343 } 5344 5345 if (changed_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT) { 5346 u16 sw_flags = 0, valid_flags = 0; 5347 int ret; 5348 5349 if (!(new_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT)) 5350 sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 5351 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 5352 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags, 5353 0, NULL); 5354 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) { 5355 dev_info(&pf->pdev->dev, 5356 "couldn't set switch config bits, err %s aq_err %s\n", 5357 i40e_stat_str(&pf->hw, ret), 5358 i40e_aq_str(&pf->hw, 5359 pf->hw.aq.asq_last_status)); 5360 /* not a fatal problem, just keep going */ 5361 } 5362 } 5363 5364 if ((changed_flags & I40E_FLAG_RS_FEC) || 5365 (changed_flags & I40E_FLAG_BASE_R_FEC)) { 5366 u8 fec_cfg = 0; 5367 5368 if (new_flags & I40E_FLAG_RS_FEC && 5369 new_flags & I40E_FLAG_BASE_R_FEC) { 5370 fec_cfg = I40E_AQ_SET_FEC_AUTO; 5371 } else if (new_flags & I40E_FLAG_RS_FEC) { 5372 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS | 5373 I40E_AQ_SET_FEC_ABILITY_RS); 5374 } else if (new_flags & I40E_FLAG_BASE_R_FEC) { 5375 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR | 5376 I40E_AQ_SET_FEC_ABILITY_KR); 5377 } 5378 if (i40e_set_fec_cfg(dev, fec_cfg)) 5379 dev_warn(&pf->pdev->dev, "Cannot change FEC config\n"); 5380 } 5381 5382 if ((changed_flags & I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) && 5383 (orig_flags & I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED)) { 5384 dev_err(&pf->pdev->dev, 5385 "Setting link-down-on-close not supported on this port (because total-port-shutdown is enabled)\n"); 5386 return -EOPNOTSUPP; 5387 } 5388 5389 if ((changed_flags & I40E_FLAG_VF_VLAN_PRUNING) && 5390 pf->num_alloc_vfs) { 5391 dev_warn(&pf->pdev->dev, 5392 "Changing vf-vlan-pruning flag while VF(s) are active is not supported\n"); 5393 return -EOPNOTSUPP; 5394 } 5395 5396 if ((changed_flags & new_flags & 5397 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) && 5398 (new_flags & I40E_FLAG_MFP_ENABLED)) 5399 dev_warn(&pf->pdev->dev, 5400 "Turning on link-down-on-close flag may affect other partitions\n"); 5401 5402 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) { 5403 if (new_flags & I40E_FLAG_DISABLE_FW_LLDP) { 5404 #ifdef CONFIG_I40E_DCB 5405 i40e_dcb_sw_default_config(pf); 5406 #endif /* CONFIG_I40E_DCB */ 5407 i40e_aq_cfg_lldp_mib_change_event(&pf->hw, false, NULL); 5408 i40e_aq_stop_lldp(&pf->hw, true, false, NULL); 5409 } else { 5410 status = i40e_aq_start_lldp(&pf->hw, false, NULL); 5411 if (status) { 5412 adq_err = pf->hw.aq.asq_last_status; 5413 switch (adq_err) { 5414 case I40E_AQ_RC_EEXIST: 5415 dev_warn(&pf->pdev->dev, 5416 "FW LLDP agent is already running\n"); 5417 reset_needed = 0; 5418 break; 5419 case I40E_AQ_RC_EPERM: 5420 dev_warn(&pf->pdev->dev, 5421 "Device configuration forbids SW from starting the LLDP agent.\n"); 5422 return -EINVAL; 5423 case I40E_AQ_RC_EAGAIN: 5424 dev_warn(&pf->pdev->dev, 5425 "Stop FW LLDP agent command is still being processed, please try again in a second.\n"); 5426 return -EBUSY; 5427 default: 5428 dev_warn(&pf->pdev->dev, 5429 "Starting FW LLDP agent failed: error: %s, %s\n", 5430 i40e_stat_str(&pf->hw, 5431 status), 5432 i40e_aq_str(&pf->hw, 5433 adq_err)); 5434 return -EINVAL; 5435 } 5436 } 5437 } 5438 } 5439 5440 /* Now that we've checked to ensure that the new flags are valid, load 5441 * them into place. Since we only modify flags either (a) during 5442 * initialization or (b) while holding the RTNL lock, we don't need 5443 * anything fancy here. 5444 */ 5445 pf->flags = new_flags; 5446 5447 /* Issue reset to cause things to take effect, as additional bits 5448 * are added we will need to create a mask of bits requiring reset 5449 */ 5450 if (reset_needed) 5451 i40e_do_reset(pf, reset_needed, true); 5452 5453 return 0; 5454 } 5455 5456 /** 5457 * i40e_get_module_info - get (Q)SFP+ module type info 5458 * @netdev: network interface device structure 5459 * @modinfo: module EEPROM size and layout information structure 5460 **/ 5461 static int i40e_get_module_info(struct net_device *netdev, 5462 struct ethtool_modinfo *modinfo) 5463 { 5464 struct i40e_netdev_priv *np = netdev_priv(netdev); 5465 struct i40e_vsi *vsi = np->vsi; 5466 struct i40e_pf *pf = vsi->back; 5467 struct i40e_hw *hw = &pf->hw; 5468 u32 sff8472_comp = 0; 5469 u32 sff8472_swap = 0; 5470 u32 sff8636_rev = 0; 5471 i40e_status status; 5472 u32 type = 0; 5473 5474 /* Check if firmware supports reading module EEPROM. */ 5475 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) { 5476 netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n"); 5477 return -EINVAL; 5478 } 5479 5480 status = i40e_update_link_info(hw); 5481 if (status) 5482 return -EIO; 5483 5484 if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) { 5485 netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n"); 5486 return -EINVAL; 5487 } 5488 5489 type = hw->phy.link_info.module_type[0]; 5490 5491 switch (type) { 5492 case I40E_MODULE_TYPE_SFP: 5493 status = i40e_aq_get_phy_register(hw, 5494 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5495 I40E_I2C_EEPROM_DEV_ADDR, true, 5496 I40E_MODULE_SFF_8472_COMP, 5497 &sff8472_comp, NULL); 5498 if (status) 5499 return -EIO; 5500 5501 status = i40e_aq_get_phy_register(hw, 5502 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5503 I40E_I2C_EEPROM_DEV_ADDR, true, 5504 I40E_MODULE_SFF_8472_SWAP, 5505 &sff8472_swap, NULL); 5506 if (status) 5507 return -EIO; 5508 5509 /* Check if the module requires address swap to access 5510 * the other EEPROM memory page. 5511 */ 5512 if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) { 5513 netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n"); 5514 modinfo->type = ETH_MODULE_SFF_8079; 5515 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5516 } else if (sff8472_comp == 0x00) { 5517 /* Module is not SFF-8472 compliant */ 5518 modinfo->type = ETH_MODULE_SFF_8079; 5519 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5520 } else if (!(sff8472_swap & I40E_MODULE_SFF_DDM_IMPLEMENTED)) { 5521 /* Module is SFF-8472 compliant but doesn't implement 5522 * Digital Diagnostic Monitoring (DDM). 5523 */ 5524 modinfo->type = ETH_MODULE_SFF_8079; 5525 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5526 } else { 5527 modinfo->type = ETH_MODULE_SFF_8472; 5528 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; 5529 } 5530 break; 5531 case I40E_MODULE_TYPE_QSFP_PLUS: 5532 /* Read from memory page 0. */ 5533 status = i40e_aq_get_phy_register(hw, 5534 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5535 0, true, 5536 I40E_MODULE_REVISION_ADDR, 5537 &sff8636_rev, NULL); 5538 if (status) 5539 return -EIO; 5540 /* Determine revision compliance byte */ 5541 if (sff8636_rev > 0x02) { 5542 /* Module is SFF-8636 compliant */ 5543 modinfo->type = ETH_MODULE_SFF_8636; 5544 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5545 } else { 5546 modinfo->type = ETH_MODULE_SFF_8436; 5547 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5548 } 5549 break; 5550 case I40E_MODULE_TYPE_QSFP28: 5551 modinfo->type = ETH_MODULE_SFF_8636; 5552 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5553 break; 5554 default: 5555 netdev_err(vsi->netdev, "Module type unrecognized\n"); 5556 return -EINVAL; 5557 } 5558 return 0; 5559 } 5560 5561 /** 5562 * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents 5563 * @netdev: network interface device structure 5564 * @ee: EEPROM dump request structure 5565 * @data: buffer to be filled with EEPROM contents 5566 **/ 5567 static int i40e_get_module_eeprom(struct net_device *netdev, 5568 struct ethtool_eeprom *ee, 5569 u8 *data) 5570 { 5571 struct i40e_netdev_priv *np = netdev_priv(netdev); 5572 struct i40e_vsi *vsi = np->vsi; 5573 struct i40e_pf *pf = vsi->back; 5574 struct i40e_hw *hw = &pf->hw; 5575 bool is_sfp = false; 5576 i40e_status status; 5577 u32 value = 0; 5578 int i; 5579 5580 if (!ee || !ee->len || !data) 5581 return -EINVAL; 5582 5583 if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP) 5584 is_sfp = true; 5585 5586 for (i = 0; i < ee->len; i++) { 5587 u32 offset = i + ee->offset; 5588 u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0; 5589 5590 /* Check if we need to access the other memory page */ 5591 if (is_sfp) { 5592 if (offset >= ETH_MODULE_SFF_8079_LEN) { 5593 offset -= ETH_MODULE_SFF_8079_LEN; 5594 addr = I40E_I2C_EEPROM_DEV_ADDR2; 5595 } 5596 } else { 5597 while (offset >= ETH_MODULE_SFF_8436_LEN) { 5598 /* Compute memory page number and offset. */ 5599 offset -= ETH_MODULE_SFF_8436_LEN / 2; 5600 addr++; 5601 } 5602 } 5603 5604 status = i40e_aq_get_phy_register(hw, 5605 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5606 addr, true, offset, &value, NULL); 5607 if (status) 5608 return -EIO; 5609 data[i] = value; 5610 } 5611 return 0; 5612 } 5613 5614 static int i40e_get_eee(struct net_device *netdev, struct ethtool_eee *edata) 5615 { 5616 struct i40e_netdev_priv *np = netdev_priv(netdev); 5617 struct i40e_aq_get_phy_abilities_resp phy_cfg; 5618 enum i40e_status_code status = 0; 5619 struct i40e_vsi *vsi = np->vsi; 5620 struct i40e_pf *pf = vsi->back; 5621 struct i40e_hw *hw = &pf->hw; 5622 5623 /* Get initial PHY capabilities */ 5624 status = i40e_aq_get_phy_capabilities(hw, false, true, &phy_cfg, NULL); 5625 if (status) 5626 return -EAGAIN; 5627 5628 /* Check whether NIC configuration is compatible with Energy Efficient 5629 * Ethernet (EEE) mode. 5630 */ 5631 if (phy_cfg.eee_capability == 0) 5632 return -EOPNOTSUPP; 5633 5634 edata->supported = SUPPORTED_Autoneg; 5635 edata->lp_advertised = edata->supported; 5636 5637 /* Get current configuration */ 5638 status = i40e_aq_get_phy_capabilities(hw, false, false, &phy_cfg, NULL); 5639 if (status) 5640 return -EAGAIN; 5641 5642 edata->advertised = phy_cfg.eee_capability ? SUPPORTED_Autoneg : 0U; 5643 edata->eee_enabled = !!edata->advertised; 5644 edata->tx_lpi_enabled = pf->stats.tx_lpi_status; 5645 5646 edata->eee_active = pf->stats.tx_lpi_status && pf->stats.rx_lpi_status; 5647 5648 return 0; 5649 } 5650 5651 static int i40e_is_eee_param_supported(struct net_device *netdev, 5652 struct ethtool_eee *edata) 5653 { 5654 struct i40e_netdev_priv *np = netdev_priv(netdev); 5655 struct i40e_vsi *vsi = np->vsi; 5656 struct i40e_pf *pf = vsi->back; 5657 struct i40e_ethtool_not_used { 5658 u32 value; 5659 const char *name; 5660 } param[] = { 5661 {edata->advertised & ~SUPPORTED_Autoneg, "advertise"}, 5662 {edata->tx_lpi_timer, "tx-timer"}, 5663 {edata->tx_lpi_enabled != pf->stats.tx_lpi_status, "tx-lpi"} 5664 }; 5665 int i; 5666 5667 for (i = 0; i < ARRAY_SIZE(param); i++) { 5668 if (param[i].value) { 5669 netdev_info(netdev, 5670 "EEE setting %s not supported\n", 5671 param[i].name); 5672 return -EOPNOTSUPP; 5673 } 5674 } 5675 5676 return 0; 5677 } 5678 5679 static int i40e_set_eee(struct net_device *netdev, struct ethtool_eee *edata) 5680 { 5681 struct i40e_netdev_priv *np = netdev_priv(netdev); 5682 struct i40e_aq_get_phy_abilities_resp abilities; 5683 enum i40e_status_code status = I40E_SUCCESS; 5684 struct i40e_aq_set_phy_config config; 5685 struct i40e_vsi *vsi = np->vsi; 5686 struct i40e_pf *pf = vsi->back; 5687 struct i40e_hw *hw = &pf->hw; 5688 __le16 eee_capability; 5689 5690 /* Deny parameters we don't support */ 5691 if (i40e_is_eee_param_supported(netdev, edata)) 5692 return -EOPNOTSUPP; 5693 5694 /* Get initial PHY capabilities */ 5695 status = i40e_aq_get_phy_capabilities(hw, false, true, &abilities, 5696 NULL); 5697 if (status) 5698 return -EAGAIN; 5699 5700 /* Check whether NIC configuration is compatible with Energy Efficient 5701 * Ethernet (EEE) mode. 5702 */ 5703 if (abilities.eee_capability == 0) 5704 return -EOPNOTSUPP; 5705 5706 /* Cache initial EEE capability */ 5707 eee_capability = abilities.eee_capability; 5708 5709 /* Get current PHY configuration */ 5710 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 5711 NULL); 5712 if (status) 5713 return -EAGAIN; 5714 5715 /* Cache current PHY configuration */ 5716 config.phy_type = abilities.phy_type; 5717 config.phy_type_ext = abilities.phy_type_ext; 5718 config.link_speed = abilities.link_speed; 5719 config.abilities = abilities.abilities | 5720 I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 5721 config.eeer = abilities.eeer_val; 5722 config.low_power_ctrl = abilities.d3_lpan; 5723 config.fec_config = abilities.fec_cfg_curr_mod_ext_info & 5724 I40E_AQ_PHY_FEC_CONFIG_MASK; 5725 5726 /* Set desired EEE state */ 5727 if (edata->eee_enabled) { 5728 config.eee_capability = eee_capability; 5729 config.eeer |= cpu_to_le32(I40E_PRTPM_EEER_TX_LPI_EN_MASK); 5730 } else { 5731 config.eee_capability = 0; 5732 config.eeer &= cpu_to_le32(~I40E_PRTPM_EEER_TX_LPI_EN_MASK); 5733 } 5734 5735 /* Apply modified PHY configuration */ 5736 status = i40e_aq_set_phy_config(hw, &config, NULL); 5737 if (status) 5738 return -EAGAIN; 5739 5740 return 0; 5741 } 5742 5743 static const struct ethtool_ops i40e_ethtool_recovery_mode_ops = { 5744 .get_drvinfo = i40e_get_drvinfo, 5745 .set_eeprom = i40e_set_eeprom, 5746 .get_eeprom_len = i40e_get_eeprom_len, 5747 .get_eeprom = i40e_get_eeprom, 5748 }; 5749 5750 static const struct ethtool_ops i40e_ethtool_ops = { 5751 .supported_coalesce_params = ETHTOOL_COALESCE_USECS | 5752 ETHTOOL_COALESCE_MAX_FRAMES_IRQ | 5753 ETHTOOL_COALESCE_USE_ADAPTIVE | 5754 ETHTOOL_COALESCE_RX_USECS_HIGH | 5755 ETHTOOL_COALESCE_TX_USECS_HIGH, 5756 .get_drvinfo = i40e_get_drvinfo, 5757 .get_regs_len = i40e_get_regs_len, 5758 .get_regs = i40e_get_regs, 5759 .nway_reset = i40e_nway_reset, 5760 .get_link = ethtool_op_get_link, 5761 .get_wol = i40e_get_wol, 5762 .set_wol = i40e_set_wol, 5763 .set_eeprom = i40e_set_eeprom, 5764 .get_eeprom_len = i40e_get_eeprom_len, 5765 .get_eeprom = i40e_get_eeprom, 5766 .get_ringparam = i40e_get_ringparam, 5767 .set_ringparam = i40e_set_ringparam, 5768 .get_pauseparam = i40e_get_pauseparam, 5769 .set_pauseparam = i40e_set_pauseparam, 5770 .get_msglevel = i40e_get_msglevel, 5771 .set_msglevel = i40e_set_msglevel, 5772 .get_rxnfc = i40e_get_rxnfc, 5773 .set_rxnfc = i40e_set_rxnfc, 5774 .self_test = i40e_diag_test, 5775 .get_strings = i40e_get_strings, 5776 .get_eee = i40e_get_eee, 5777 .set_eee = i40e_set_eee, 5778 .set_phys_id = i40e_set_phys_id, 5779 .get_sset_count = i40e_get_sset_count, 5780 .get_ethtool_stats = i40e_get_ethtool_stats, 5781 .get_coalesce = i40e_get_coalesce, 5782 .set_coalesce = i40e_set_coalesce, 5783 .get_rxfh_key_size = i40e_get_rxfh_key_size, 5784 .get_rxfh_indir_size = i40e_get_rxfh_indir_size, 5785 .get_rxfh = i40e_get_rxfh, 5786 .set_rxfh = i40e_set_rxfh, 5787 .get_channels = i40e_get_channels, 5788 .set_channels = i40e_set_channels, 5789 .get_module_info = i40e_get_module_info, 5790 .get_module_eeprom = i40e_get_module_eeprom, 5791 .get_ts_info = i40e_get_ts_info, 5792 .get_priv_flags = i40e_get_priv_flags, 5793 .set_priv_flags = i40e_set_priv_flags, 5794 .get_per_queue_coalesce = i40e_get_per_queue_coalesce, 5795 .set_per_queue_coalesce = i40e_set_per_queue_coalesce, 5796 .get_link_ksettings = i40e_get_link_ksettings, 5797 .set_link_ksettings = i40e_set_link_ksettings, 5798 .get_fecparam = i40e_get_fec_param, 5799 .set_fecparam = i40e_set_fec_param, 5800 .flash_device = i40e_ddp_flash, 5801 }; 5802 5803 void i40e_set_ethtool_ops(struct net_device *netdev) 5804 { 5805 struct i40e_netdev_priv *np = netdev_priv(netdev); 5806 struct i40e_pf *pf = np->vsi->back; 5807 5808 if (!test_bit(__I40E_RECOVERY_MODE, pf->state)) 5809 netdev->ethtool_ops = &i40e_ethtool_ops; 5810 else 5811 netdev->ethtool_ops = &i40e_ethtool_recovery_mode_ops; 5812 } 5813