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