1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright(c) 2013 - 2018 Intel Corporation. */ 3 4 /* ethtool support for i40e */ 5 6 #include "i40e_devids.h" 7 #include "i40e_diag.h" 8 #include "i40e_txrx_common.h" 9 #include "i40e_virtchnl_pf.h" 10 11 /* ethtool statistics helpers */ 12 13 /** 14 * struct i40e_stats - definition for an ethtool statistic 15 * @stat_string: statistic name to display in ethtool -S output 16 * @sizeof_stat: the sizeof() the stat, must be no greater than sizeof(u64) 17 * @stat_offset: offsetof() the stat from a base pointer 18 * 19 * This structure defines a statistic to be added to the ethtool stats buffer. 20 * It defines a statistic as offset from a common base pointer. Stats should 21 * be defined in constant arrays using the I40E_STAT macro, with every element 22 * of the array using the same _type for calculating the sizeof_stat and 23 * stat_offset. 24 * 25 * The @sizeof_stat is expected to be sizeof(u8), sizeof(u16), sizeof(u32) or 26 * sizeof(u64). Other sizes are not expected and will produce a WARN_ONCE from 27 * the i40e_add_ethtool_stat() helper function. 28 * 29 * The @stat_string is interpreted as a format string, allowing formatted 30 * values to be inserted while looping over multiple structures for a given 31 * statistics array. Thus, every statistic string in an array should have the 32 * same type and number of format specifiers, to be formatted by variadic 33 * arguments to the i40e_add_stat_string() helper function. 34 **/ 35 struct i40e_stats { 36 char stat_string[ETH_GSTRING_LEN]; 37 int sizeof_stat; 38 int stat_offset; 39 }; 40 41 /* Helper macro to define an i40e_stat structure with proper size and type. 42 * Use this when defining constant statistics arrays. Note that @_type expects 43 * only a type name and is used multiple times. 44 */ 45 #define I40E_STAT(_type, _name, _stat) { \ 46 .stat_string = _name, \ 47 .sizeof_stat = sizeof_field(_type, _stat), \ 48 .stat_offset = offsetof(_type, _stat) \ 49 } 50 51 /* Helper macro for defining some statistics directly copied from the netdev 52 * stats structure. 53 */ 54 #define I40E_NETDEV_STAT(_net_stat) \ 55 I40E_STAT(struct rtnl_link_stats64, #_net_stat, _net_stat) 56 57 /* Helper macro for defining some statistics related to queues */ 58 #define I40E_QUEUE_STAT(_name, _stat) \ 59 I40E_STAT(struct i40e_ring, _name, _stat) 60 61 /* Stats associated with a Tx or Rx ring */ 62 static const struct i40e_stats i40e_gstrings_queue_stats[] = { 63 I40E_QUEUE_STAT("%s-%u.packets", stats.packets), 64 I40E_QUEUE_STAT("%s-%u.bytes", stats.bytes), 65 }; 66 67 /** 68 * i40e_add_one_ethtool_stat - copy the stat into the supplied buffer 69 * @data: location to store the stat value 70 * @pointer: basis for where to copy from 71 * @stat: the stat definition 72 * 73 * Copies the stat data defined by the pointer and stat structure pair into 74 * the memory supplied as data. Used to implement i40e_add_ethtool_stats and 75 * i40e_add_queue_stats. If the pointer is null, data will be zero'd. 76 */ 77 static void 78 i40e_add_one_ethtool_stat(u64 *data, void *pointer, 79 const struct i40e_stats *stat) 80 { 81 char *p; 82 83 if (!pointer) { 84 /* ensure that the ethtool data buffer is zero'd for any stats 85 * which don't have a valid pointer. 86 */ 87 *data = 0; 88 return; 89 } 90 91 p = (char *)pointer + stat->stat_offset; 92 switch (stat->sizeof_stat) { 93 case sizeof(u64): 94 *data = *((u64 *)p); 95 break; 96 case sizeof(u32): 97 *data = *((u32 *)p); 98 break; 99 case sizeof(u16): 100 *data = *((u16 *)p); 101 break; 102 case sizeof(u8): 103 *data = *((u8 *)p); 104 break; 105 default: 106 WARN_ONCE(1, "unexpected stat size for %s", 107 stat->stat_string); 108 *data = 0; 109 } 110 } 111 112 /** 113 * __i40e_add_ethtool_stats - copy stats into the ethtool supplied buffer 114 * @data: ethtool stats buffer 115 * @pointer: location to copy stats from 116 * @stats: array of stats to copy 117 * @size: the size of the stats definition 118 * 119 * Copy the stats defined by the stats array using the pointer as a base into 120 * the data buffer supplied by ethtool. Updates the data pointer to point to 121 * the next empty location for successive calls to __i40e_add_ethtool_stats. 122 * If pointer is null, set the data values to zero and update the pointer to 123 * skip these stats. 124 **/ 125 static void 126 __i40e_add_ethtool_stats(u64 **data, void *pointer, 127 const struct i40e_stats stats[], 128 const unsigned int size) 129 { 130 unsigned int i; 131 132 for (i = 0; i < size; i++) 133 i40e_add_one_ethtool_stat((*data)++, pointer, &stats[i]); 134 } 135 136 /** 137 * i40e_add_ethtool_stats - copy stats into ethtool supplied buffer 138 * @data: ethtool stats buffer 139 * @pointer: location where stats are stored 140 * @stats: static const array of stat definitions 141 * 142 * Macro to ease the use of __i40e_add_ethtool_stats by taking a static 143 * constant stats array and passing the ARRAY_SIZE(). This avoids typos by 144 * ensuring that we pass the size associated with the given stats array. 145 * 146 * The parameter @stats is evaluated twice, so parameters with side effects 147 * should be avoided. 148 **/ 149 #define i40e_add_ethtool_stats(data, pointer, stats) \ 150 __i40e_add_ethtool_stats(data, pointer, stats, ARRAY_SIZE(stats)) 151 152 /** 153 * i40e_add_queue_stats - copy queue statistics into supplied buffer 154 * @data: ethtool stats buffer 155 * @ring: the ring to copy 156 * 157 * Queue statistics must be copied while protected by 158 * u64_stats_fetch_begin, so we can't directly use i40e_add_ethtool_stats. 159 * Assumes that queue stats are defined in i40e_gstrings_queue_stats. If the 160 * ring pointer is null, zero out the queue stat values and update the data 161 * pointer. Otherwise safely copy the stats from the ring into the supplied 162 * buffer and update the data pointer when finished. 163 * 164 * This function expects to be called while under rcu_read_lock(). 165 **/ 166 static void 167 i40e_add_queue_stats(u64 **data, struct i40e_ring *ring) 168 { 169 const unsigned int size = ARRAY_SIZE(i40e_gstrings_queue_stats); 170 const struct i40e_stats *stats = i40e_gstrings_queue_stats; 171 unsigned int start; 172 unsigned int i; 173 174 /* To avoid invalid statistics values, ensure that we keep retrying 175 * the copy until we get a consistent value according to 176 * u64_stats_fetch_retry. But first, make sure our ring is 177 * non-null before attempting to access its syncp. 178 */ 179 do { 180 start = !ring ? 0 : u64_stats_fetch_begin(&ring->syncp); 181 for (i = 0; i < size; i++) { 182 i40e_add_one_ethtool_stat(&(*data)[i], ring, 183 &stats[i]); 184 } 185 } while (ring && u64_stats_fetch_retry(&ring->syncp, start)); 186 187 /* Once we successfully copy the stats in, update the data pointer */ 188 *data += size; 189 } 190 191 /** 192 * __i40e_add_stat_strings - copy stat strings into ethtool buffer 193 * @p: ethtool supplied buffer 194 * @stats: stat definitions array 195 * @size: size of the stats array 196 * 197 * Format and copy the strings described by stats into the buffer pointed at 198 * by p. 199 **/ 200 static void __i40e_add_stat_strings(u8 **p, const struct i40e_stats stats[], 201 const unsigned int size, ...) 202 { 203 unsigned int i; 204 205 for (i = 0; i < size; i++) { 206 va_list args; 207 208 va_start(args, size); 209 vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args); 210 *p += ETH_GSTRING_LEN; 211 va_end(args); 212 } 213 } 214 215 /** 216 * i40e_add_stat_strings - copy stat strings into ethtool buffer 217 * @p: ethtool supplied buffer 218 * @stats: stat definitions array 219 * 220 * Format and copy the strings described by the const static stats value into 221 * the buffer pointed at by p. 222 * 223 * The parameter @stats is evaluated twice, so parameters with side effects 224 * should be avoided. Additionally, stats must be an array such that 225 * ARRAY_SIZE can be called on it. 226 **/ 227 #define i40e_add_stat_strings(p, stats, ...) \ 228 __i40e_add_stat_strings(p, stats, ARRAY_SIZE(stats), ## __VA_ARGS__) 229 230 #define I40E_PF_STAT(_name, _stat) \ 231 I40E_STAT(struct i40e_pf, _name, _stat) 232 #define I40E_VSI_STAT(_name, _stat) \ 233 I40E_STAT(struct i40e_vsi, _name, _stat) 234 #define I40E_VEB_STAT(_name, _stat) \ 235 I40E_STAT(struct i40e_veb, _name, _stat) 236 #define I40E_VEB_TC_STAT(_name, _stat) \ 237 I40E_STAT(struct i40e_cp_veb_tc_stats, _name, _stat) 238 #define I40E_PFC_STAT(_name, _stat) \ 239 I40E_STAT(struct i40e_pfc_stats, _name, _stat) 240 241 static const struct i40e_stats i40e_gstrings_net_stats[] = { 242 I40E_NETDEV_STAT(rx_packets), 243 I40E_NETDEV_STAT(tx_packets), 244 I40E_NETDEV_STAT(rx_bytes), 245 I40E_NETDEV_STAT(tx_bytes), 246 I40E_NETDEV_STAT(rx_errors), 247 I40E_NETDEV_STAT(tx_errors), 248 I40E_NETDEV_STAT(rx_dropped), 249 I40E_NETDEV_STAT(rx_missed_errors), 250 I40E_NETDEV_STAT(tx_dropped), 251 I40E_NETDEV_STAT(collisions), 252 I40E_NETDEV_STAT(rx_length_errors), 253 I40E_NETDEV_STAT(rx_crc_errors), 254 }; 255 256 static const struct i40e_stats i40e_gstrings_veb_stats[] = { 257 I40E_VEB_STAT("veb.rx_bytes", stats.rx_bytes), 258 I40E_VEB_STAT("veb.tx_bytes", stats.tx_bytes), 259 I40E_VEB_STAT("veb.rx_unicast", stats.rx_unicast), 260 I40E_VEB_STAT("veb.tx_unicast", stats.tx_unicast), 261 I40E_VEB_STAT("veb.rx_multicast", stats.rx_multicast), 262 I40E_VEB_STAT("veb.tx_multicast", stats.tx_multicast), 263 I40E_VEB_STAT("veb.rx_broadcast", stats.rx_broadcast), 264 I40E_VEB_STAT("veb.tx_broadcast", stats.tx_broadcast), 265 I40E_VEB_STAT("veb.rx_discards", stats.rx_discards), 266 I40E_VEB_STAT("veb.tx_discards", stats.tx_discards), 267 I40E_VEB_STAT("veb.tx_errors", stats.tx_errors), 268 I40E_VEB_STAT("veb.rx_unknown_protocol", stats.rx_unknown_protocol), 269 }; 270 271 struct i40e_cp_veb_tc_stats { 272 u64 tc_rx_packets; 273 u64 tc_rx_bytes; 274 u64 tc_tx_packets; 275 u64 tc_tx_bytes; 276 }; 277 278 static const struct i40e_stats i40e_gstrings_veb_tc_stats[] = { 279 I40E_VEB_TC_STAT("veb.tc_%u_tx_packets", tc_tx_packets), 280 I40E_VEB_TC_STAT("veb.tc_%u_tx_bytes", tc_tx_bytes), 281 I40E_VEB_TC_STAT("veb.tc_%u_rx_packets", tc_rx_packets), 282 I40E_VEB_TC_STAT("veb.tc_%u_rx_bytes", tc_rx_bytes), 283 }; 284 285 static const struct i40e_stats i40e_gstrings_misc_stats[] = { 286 I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast), 287 I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast), 288 I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast), 289 I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast), 290 I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast), 291 I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast), 292 I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol), 293 I40E_VSI_STAT("tx_linearize", tx_linearize), 294 I40E_VSI_STAT("tx_force_wb", tx_force_wb), 295 I40E_VSI_STAT("tx_busy", tx_busy), 296 I40E_VSI_STAT("tx_stopped", tx_stopped), 297 I40E_VSI_STAT("rx_alloc_fail", rx_buf_failed), 298 I40E_VSI_STAT("rx_pg_alloc_fail", rx_page_failed), 299 I40E_VSI_STAT("rx_cache_reuse", rx_page_reuse), 300 I40E_VSI_STAT("rx_cache_alloc", rx_page_alloc), 301 I40E_VSI_STAT("rx_cache_waive", rx_page_waive), 302 I40E_VSI_STAT("rx_cache_busy", rx_page_busy), 303 I40E_VSI_STAT("tx_restart", tx_restart), 304 }; 305 306 /* These PF_STATs might look like duplicates of some NETDEV_STATs, 307 * but they are separate. This device supports Virtualization, and 308 * as such might have several netdevs supporting VMDq and FCoE going 309 * through a single port. The NETDEV_STATs are for individual netdevs 310 * seen at the top of the stack, and the PF_STATs are for the physical 311 * function at the bottom of the stack hosting those netdevs. 312 * 313 * The PF_STATs are appended to the netdev stats only when ethtool -S 314 * is queried on the base PF netdev, not on the VMDq or FCoE netdev. 315 */ 316 static const struct i40e_stats i40e_gstrings_stats[] = { 317 I40E_PF_STAT("port.rx_bytes", stats.eth.rx_bytes), 318 I40E_PF_STAT("port.tx_bytes", stats.eth.tx_bytes), 319 I40E_PF_STAT("port.rx_unicast", stats.eth.rx_unicast), 320 I40E_PF_STAT("port.tx_unicast", stats.eth.tx_unicast), 321 I40E_PF_STAT("port.rx_multicast", stats.eth.rx_multicast), 322 I40E_PF_STAT("port.tx_multicast", stats.eth.tx_multicast), 323 I40E_PF_STAT("port.rx_broadcast", stats.eth.rx_broadcast), 324 I40E_PF_STAT("port.tx_broadcast", stats.eth.tx_broadcast), 325 I40E_PF_STAT("port.tx_errors", stats.eth.tx_errors), 326 I40E_PF_STAT("port.rx_discards", stats.eth.rx_discards), 327 I40E_PF_STAT("port.tx_dropped_link_down", stats.tx_dropped_link_down), 328 I40E_PF_STAT("port.rx_crc_errors", stats.crc_errors), 329 I40E_PF_STAT("port.illegal_bytes", stats.illegal_bytes), 330 I40E_PF_STAT("port.mac_local_faults", stats.mac_local_faults), 331 I40E_PF_STAT("port.mac_remote_faults", stats.mac_remote_faults), 332 I40E_PF_STAT("port.tx_timeout", tx_timeout_count), 333 I40E_PF_STAT("port.rx_csum_bad", hw_csum_rx_error), 334 I40E_PF_STAT("port.rx_length_errors", stats.rx_length_errors), 335 I40E_PF_STAT("port.link_xon_rx", stats.link_xon_rx), 336 I40E_PF_STAT("port.link_xoff_rx", stats.link_xoff_rx), 337 I40E_PF_STAT("port.link_xon_tx", stats.link_xon_tx), 338 I40E_PF_STAT("port.link_xoff_tx", stats.link_xoff_tx), 339 I40E_PF_STAT("port.rx_size_64", stats.rx_size_64), 340 I40E_PF_STAT("port.rx_size_127", stats.rx_size_127), 341 I40E_PF_STAT("port.rx_size_255", stats.rx_size_255), 342 I40E_PF_STAT("port.rx_size_511", stats.rx_size_511), 343 I40E_PF_STAT("port.rx_size_1023", stats.rx_size_1023), 344 I40E_PF_STAT("port.rx_size_1522", stats.rx_size_1522), 345 I40E_PF_STAT("port.rx_size_big", stats.rx_size_big), 346 I40E_PF_STAT("port.tx_size_64", stats.tx_size_64), 347 I40E_PF_STAT("port.tx_size_127", stats.tx_size_127), 348 I40E_PF_STAT("port.tx_size_255", stats.tx_size_255), 349 I40E_PF_STAT("port.tx_size_511", stats.tx_size_511), 350 I40E_PF_STAT("port.tx_size_1023", stats.tx_size_1023), 351 I40E_PF_STAT("port.tx_size_1522", stats.tx_size_1522), 352 I40E_PF_STAT("port.tx_size_big", stats.tx_size_big), 353 I40E_PF_STAT("port.rx_undersize", stats.rx_undersize), 354 I40E_PF_STAT("port.rx_fragments", stats.rx_fragments), 355 I40E_PF_STAT("port.rx_oversize", stats.rx_oversize), 356 I40E_PF_STAT("port.rx_jabber", stats.rx_jabber), 357 I40E_PF_STAT("port.VF_admin_queue_requests", vf_aq_requests), 358 I40E_PF_STAT("port.arq_overflows", arq_overflows), 359 I40E_PF_STAT("port.tx_hwtstamp_timeouts", tx_hwtstamp_timeouts), 360 I40E_PF_STAT("port.rx_hwtstamp_cleared", rx_hwtstamp_cleared), 361 I40E_PF_STAT("port.tx_hwtstamp_skipped", tx_hwtstamp_skipped), 362 I40E_PF_STAT("port.fdir_flush_cnt", fd_flush_cnt), 363 I40E_PF_STAT("port.fdir_atr_match", stats.fd_atr_match), 364 I40E_PF_STAT("port.fdir_atr_tunnel_match", stats.fd_atr_tunnel_match), 365 I40E_PF_STAT("port.fdir_atr_status", stats.fd_atr_status), 366 I40E_PF_STAT("port.fdir_sb_match", stats.fd_sb_match), 367 I40E_PF_STAT("port.fdir_sb_status", stats.fd_sb_status), 368 369 /* LPI stats */ 370 I40E_PF_STAT("port.tx_lpi_status", stats.tx_lpi_status), 371 I40E_PF_STAT("port.rx_lpi_status", stats.rx_lpi_status), 372 I40E_PF_STAT("port.tx_lpi_count", stats.tx_lpi_count), 373 I40E_PF_STAT("port.rx_lpi_count", stats.rx_lpi_count), 374 }; 375 376 struct i40e_pfc_stats { 377 u64 priority_xon_rx; 378 u64 priority_xoff_rx; 379 u64 priority_xon_tx; 380 u64 priority_xoff_tx; 381 u64 priority_xon_2_xoff; 382 }; 383 384 static const struct i40e_stats i40e_gstrings_pfc_stats[] = { 385 I40E_PFC_STAT("port.tx_priority_%u_xon_tx", priority_xon_tx), 386 I40E_PFC_STAT("port.tx_priority_%u_xoff_tx", priority_xoff_tx), 387 I40E_PFC_STAT("port.rx_priority_%u_xon_rx", priority_xon_rx), 388 I40E_PFC_STAT("port.rx_priority_%u_xoff_rx", priority_xoff_rx), 389 I40E_PFC_STAT("port.rx_priority_%u_xon_2_xoff", priority_xon_2_xoff), 390 }; 391 392 #define I40E_NETDEV_STATS_LEN ARRAY_SIZE(i40e_gstrings_net_stats) 393 394 #define I40E_MISC_STATS_LEN ARRAY_SIZE(i40e_gstrings_misc_stats) 395 396 #define I40E_VSI_STATS_LEN (I40E_NETDEV_STATS_LEN + I40E_MISC_STATS_LEN) 397 398 #define I40E_PFC_STATS_LEN (ARRAY_SIZE(i40e_gstrings_pfc_stats) * \ 399 I40E_MAX_USER_PRIORITY) 400 401 #define I40E_VEB_STATS_LEN (ARRAY_SIZE(i40e_gstrings_veb_stats) + \ 402 (ARRAY_SIZE(i40e_gstrings_veb_tc_stats) * \ 403 I40E_MAX_TRAFFIC_CLASS)) 404 405 #define I40E_GLOBAL_STATS_LEN ARRAY_SIZE(i40e_gstrings_stats) 406 407 #define I40E_PF_STATS_LEN (I40E_GLOBAL_STATS_LEN + \ 408 I40E_PFC_STATS_LEN + \ 409 I40E_VEB_STATS_LEN + \ 410 I40E_VSI_STATS_LEN) 411 412 /* Length of stats for a single queue */ 413 #define I40E_QUEUE_STATS_LEN ARRAY_SIZE(i40e_gstrings_queue_stats) 414 415 enum i40e_ethtool_test_id { 416 I40E_ETH_TEST_REG = 0, 417 I40E_ETH_TEST_EEPROM, 418 I40E_ETH_TEST_INTR, 419 I40E_ETH_TEST_LINK, 420 }; 421 422 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = { 423 "Register test (offline)", 424 "Eeprom test (offline)", 425 "Interrupt test (offline)", 426 "Link test (on/offline)" 427 }; 428 429 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN) 430 431 struct i40e_priv_flags { 432 char flag_string[ETH_GSTRING_LEN]; 433 u8 bitno; 434 bool read_only; 435 }; 436 437 #define I40E_PRIV_FLAG(_name, _bitno, _read_only) { \ 438 .flag_string = _name, \ 439 .bitno = _bitno, \ 440 .read_only = _read_only, \ 441 } 442 443 static const struct i40e_priv_flags i40e_gstrings_priv_flags[] = { 444 /* NOTE: MFP setting cannot be changed */ 445 I40E_PRIV_FLAG("MFP", I40E_FLAG_MFP_ENA, 1), 446 I40E_PRIV_FLAG("total-port-shutdown", 447 I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENA, 1), 448 I40E_PRIV_FLAG("LinkPolling", I40E_FLAG_LINK_POLLING_ENA, 0), 449 I40E_PRIV_FLAG("flow-director-atr", I40E_FLAG_FD_ATR_ENA, 0), 450 I40E_PRIV_FLAG("veb-stats", I40E_FLAG_VEB_STATS_ENA, 0), 451 I40E_PRIV_FLAG("hw-atr-eviction", I40E_FLAG_HW_ATR_EVICT_ENA, 0), 452 I40E_PRIV_FLAG("link-down-on-close", 453 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, 0), 454 I40E_PRIV_FLAG("legacy-rx", I40E_FLAG_LEGACY_RX_ENA, 0), 455 I40E_PRIV_FLAG("disable-source-pruning", 456 I40E_FLAG_SOURCE_PRUNING_DIS, 0), 457 I40E_PRIV_FLAG("disable-fw-lldp", I40E_FLAG_FW_LLDP_DIS, 0), 458 I40E_PRIV_FLAG("rs-fec", I40E_FLAG_RS_FEC, 0), 459 I40E_PRIV_FLAG("base-r-fec", I40E_FLAG_BASE_R_FEC, 0), 460 I40E_PRIV_FLAG("vf-vlan-pruning", 461 I40E_FLAG_VF_VLAN_PRUNING_ENA, 0), 462 }; 463 464 #define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gstrings_priv_flags) 465 466 /* Private flags with a global effect, restricted to PF 0 */ 467 static const struct i40e_priv_flags i40e_gl_gstrings_priv_flags[] = { 468 I40E_PRIV_FLAG("vf-true-promisc-support", 469 I40E_FLAG_TRUE_PROMISC_ENA, 0), 470 }; 471 472 #define I40E_GL_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gl_gstrings_priv_flags) 473 474 /** 475 * i40e_partition_setting_complaint - generic complaint for MFP restriction 476 * @pf: the PF struct 477 **/ 478 static void i40e_partition_setting_complaint(struct i40e_pf *pf) 479 { 480 dev_info(&pf->pdev->dev, 481 "The link settings are allowed to be changed only from the first partition of a given port. Please switch to the first partition in order to change the setting.\n"); 482 } 483 484 /** 485 * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes 486 * @pf: PF struct with phy_types 487 * @ks: ethtool link ksettings struct to fill out 488 * 489 **/ 490 static void i40e_phy_type_to_ethtool(struct i40e_pf *pf, 491 struct ethtool_link_ksettings *ks) 492 { 493 struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info; 494 u64 phy_types = pf->hw.phy.phy_types; 495 496 ethtool_link_ksettings_zero_link_mode(ks, supported); 497 ethtool_link_ksettings_zero_link_mode(ks, advertising); 498 499 if (phy_types & I40E_CAP_PHY_TYPE_SGMII) { 500 ethtool_link_ksettings_add_link_mode(ks, supported, 501 1000baseT_Full); 502 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 503 ethtool_link_ksettings_add_link_mode(ks, advertising, 504 1000baseT_Full); 505 if (test_bit(I40E_HW_CAP_100M_SGMII, pf->hw.caps)) { 506 ethtool_link_ksettings_add_link_mode(ks, supported, 507 100baseT_Full); 508 ethtool_link_ksettings_add_link_mode(ks, advertising, 509 100baseT_Full); 510 } 511 } 512 if (phy_types & I40E_CAP_PHY_TYPE_XAUI || 513 phy_types & I40E_CAP_PHY_TYPE_XFI || 514 phy_types & I40E_CAP_PHY_TYPE_SFI || 515 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU || 516 phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC) { 517 ethtool_link_ksettings_add_link_mode(ks, supported, 518 10000baseT_Full); 519 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 520 ethtool_link_ksettings_add_link_mode(ks, advertising, 521 10000baseT_Full); 522 } 523 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_T) { 524 ethtool_link_ksettings_add_link_mode(ks, supported, 525 10000baseT_Full); 526 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 527 ethtool_link_ksettings_add_link_mode(ks, advertising, 528 10000baseT_Full); 529 } 530 if (phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T) { 531 ethtool_link_ksettings_add_link_mode(ks, supported, 532 2500baseT_Full); 533 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB) 534 ethtool_link_ksettings_add_link_mode(ks, advertising, 535 2500baseT_Full); 536 } 537 if (phy_types & I40E_CAP_PHY_TYPE_5GBASE_T) { 538 ethtool_link_ksettings_add_link_mode(ks, supported, 539 5000baseT_Full); 540 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB) 541 ethtool_link_ksettings_add_link_mode(ks, advertising, 542 5000baseT_Full); 543 } 544 if (phy_types & I40E_CAP_PHY_TYPE_XLAUI || 545 phy_types & I40E_CAP_PHY_TYPE_XLPPI || 546 phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC) 547 ethtool_link_ksettings_add_link_mode(ks, supported, 548 40000baseCR4_Full); 549 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU || 550 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) { 551 ethtool_link_ksettings_add_link_mode(ks, supported, 552 40000baseCR4_Full); 553 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB) 554 ethtool_link_ksettings_add_link_mode(ks, advertising, 555 40000baseCR4_Full); 556 } 557 if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) { 558 ethtool_link_ksettings_add_link_mode(ks, supported, 559 100baseT_Full); 560 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 561 ethtool_link_ksettings_add_link_mode(ks, advertising, 562 100baseT_Full); 563 } 564 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T) { 565 ethtool_link_ksettings_add_link_mode(ks, supported, 566 1000baseT_Full); 567 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 568 ethtool_link_ksettings_add_link_mode(ks, advertising, 569 1000baseT_Full); 570 } 571 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4) { 572 ethtool_link_ksettings_add_link_mode(ks, supported, 573 40000baseSR4_Full); 574 ethtool_link_ksettings_add_link_mode(ks, advertising, 575 40000baseSR4_Full); 576 } 577 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4) { 578 ethtool_link_ksettings_add_link_mode(ks, supported, 579 40000baseLR4_Full); 580 ethtool_link_ksettings_add_link_mode(ks, advertising, 581 40000baseLR4_Full); 582 } 583 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) { 584 ethtool_link_ksettings_add_link_mode(ks, supported, 585 40000baseKR4_Full); 586 ethtool_link_ksettings_add_link_mode(ks, advertising, 587 40000baseKR4_Full); 588 } 589 if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) { 590 ethtool_link_ksettings_add_link_mode(ks, supported, 591 20000baseKR2_Full); 592 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB) 593 ethtool_link_ksettings_add_link_mode(ks, advertising, 594 20000baseKR2_Full); 595 } 596 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) { 597 ethtool_link_ksettings_add_link_mode(ks, supported, 598 10000baseKX4_Full); 599 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 600 ethtool_link_ksettings_add_link_mode(ks, advertising, 601 10000baseKX4_Full); 602 } 603 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR && 604 !test_bit(I40E_HW_CAP_CRT_RETIMER, pf->hw.caps)) { 605 ethtool_link_ksettings_add_link_mode(ks, supported, 606 10000baseKR_Full); 607 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 608 ethtool_link_ksettings_add_link_mode(ks, advertising, 609 10000baseKR_Full); 610 } 611 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX && 612 !test_bit(I40E_HW_CAP_CRT_RETIMER, pf->hw.caps)) { 613 ethtool_link_ksettings_add_link_mode(ks, supported, 614 1000baseKX_Full); 615 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 616 ethtool_link_ksettings_add_link_mode(ks, advertising, 617 1000baseKX_Full); 618 } 619 /* need to add 25G PHY types */ 620 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR) { 621 ethtool_link_ksettings_add_link_mode(ks, supported, 622 25000baseKR_Full); 623 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 624 ethtool_link_ksettings_add_link_mode(ks, advertising, 625 25000baseKR_Full); 626 } 627 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR) { 628 ethtool_link_ksettings_add_link_mode(ks, supported, 629 25000baseCR_Full); 630 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 631 ethtool_link_ksettings_add_link_mode(ks, advertising, 632 25000baseCR_Full); 633 } 634 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 635 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR) { 636 ethtool_link_ksettings_add_link_mode(ks, supported, 637 25000baseSR_Full); 638 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 639 ethtool_link_ksettings_add_link_mode(ks, advertising, 640 25000baseSR_Full); 641 } 642 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC || 643 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) { 644 ethtool_link_ksettings_add_link_mode(ks, supported, 645 25000baseCR_Full); 646 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 647 ethtool_link_ksettings_add_link_mode(ks, advertising, 648 25000baseCR_Full); 649 } 650 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR || 651 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR || 652 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 653 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR || 654 phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC || 655 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) { 656 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); 657 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); 658 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); 659 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) { 660 ethtool_link_ksettings_add_link_mode(ks, advertising, 661 FEC_NONE); 662 ethtool_link_ksettings_add_link_mode(ks, advertising, 663 FEC_RS); 664 ethtool_link_ksettings_add_link_mode(ks, advertising, 665 FEC_BASER); 666 } 667 } 668 /* need to add new 10G PHY types */ 669 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 || 670 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU) { 671 ethtool_link_ksettings_add_link_mode(ks, supported, 672 10000baseCR_Full); 673 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 674 ethtool_link_ksettings_add_link_mode(ks, advertising, 675 10000baseCR_Full); 676 } 677 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR) { 678 ethtool_link_ksettings_add_link_mode(ks, supported, 679 10000baseSR_Full); 680 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 681 ethtool_link_ksettings_add_link_mode(ks, advertising, 682 10000baseSR_Full); 683 } 684 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) { 685 ethtool_link_ksettings_add_link_mode(ks, supported, 686 10000baseLR_Full); 687 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 688 ethtool_link_ksettings_add_link_mode(ks, advertising, 689 10000baseLR_Full); 690 } 691 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX || 692 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX || 693 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) { 694 ethtool_link_ksettings_add_link_mode(ks, supported, 695 1000baseX_Full); 696 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 697 ethtool_link_ksettings_add_link_mode(ks, advertising, 698 1000baseX_Full); 699 } 700 /* Autoneg PHY types */ 701 if (phy_types & I40E_CAP_PHY_TYPE_SGMII || 702 phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4 || 703 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU || 704 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4 || 705 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 706 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR || 707 phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR || 708 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR || 709 phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2 || 710 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR || 711 phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR || 712 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4 || 713 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR || 714 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU || 715 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 || 716 phy_types & I40E_CAP_PHY_TYPE_10GBASE_T || 717 phy_types & I40E_CAP_PHY_TYPE_5GBASE_T || 718 phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T || 719 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL || 720 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T || 721 phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX || 722 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX || 723 phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX || 724 phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) { 725 ethtool_link_ksettings_add_link_mode(ks, supported, 726 Autoneg); 727 ethtool_link_ksettings_add_link_mode(ks, advertising, 728 Autoneg); 729 } 730 } 731 732 /** 733 * i40e_get_settings_link_up_fec - Get the FEC mode encoding from mask 734 * @req_fec_info: mask request FEC info 735 * @ks: ethtool ksettings to fill in 736 **/ 737 static void i40e_get_settings_link_up_fec(u8 req_fec_info, 738 struct ethtool_link_ksettings *ks) 739 { 740 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); 741 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); 742 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); 743 744 if ((I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) && 745 (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info)) { 746 ethtool_link_ksettings_add_link_mode(ks, advertising, 747 FEC_NONE); 748 ethtool_link_ksettings_add_link_mode(ks, advertising, 749 FEC_BASER); 750 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); 751 } else if (I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) { 752 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); 753 } else if (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info) { 754 ethtool_link_ksettings_add_link_mode(ks, advertising, 755 FEC_BASER); 756 } else { 757 ethtool_link_ksettings_add_link_mode(ks, advertising, 758 FEC_NONE); 759 } 760 } 761 762 /** 763 * i40e_get_settings_link_up - Get the Link settings for when link is up 764 * @hw: hw structure 765 * @ks: ethtool ksettings to fill in 766 * @netdev: network interface device structure 767 * @pf: pointer to physical function struct 768 **/ 769 static void i40e_get_settings_link_up(struct i40e_hw *hw, 770 struct ethtool_link_ksettings *ks, 771 struct net_device *netdev, 772 struct i40e_pf *pf) 773 { 774 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 775 struct ethtool_link_ksettings cap_ksettings; 776 u32 link_speed = hw_link_info->link_speed; 777 778 /* Initialize supported and advertised settings based on phy settings */ 779 switch (hw_link_info->phy_type) { 780 case I40E_PHY_TYPE_40GBASE_CR4: 781 case I40E_PHY_TYPE_40GBASE_CR4_CU: 782 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 783 ethtool_link_ksettings_add_link_mode(ks, supported, 784 40000baseCR4_Full); 785 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 786 ethtool_link_ksettings_add_link_mode(ks, advertising, 787 40000baseCR4_Full); 788 break; 789 case I40E_PHY_TYPE_XLAUI: 790 case I40E_PHY_TYPE_XLPPI: 791 case I40E_PHY_TYPE_40GBASE_AOC: 792 ethtool_link_ksettings_add_link_mode(ks, supported, 793 40000baseCR4_Full); 794 ethtool_link_ksettings_add_link_mode(ks, advertising, 795 40000baseCR4_Full); 796 break; 797 case I40E_PHY_TYPE_40GBASE_SR4: 798 ethtool_link_ksettings_add_link_mode(ks, supported, 799 40000baseSR4_Full); 800 ethtool_link_ksettings_add_link_mode(ks, advertising, 801 40000baseSR4_Full); 802 break; 803 case I40E_PHY_TYPE_40GBASE_LR4: 804 ethtool_link_ksettings_add_link_mode(ks, supported, 805 40000baseLR4_Full); 806 ethtool_link_ksettings_add_link_mode(ks, advertising, 807 40000baseLR4_Full); 808 break; 809 case I40E_PHY_TYPE_25GBASE_SR: 810 case I40E_PHY_TYPE_25GBASE_LR: 811 case I40E_PHY_TYPE_10GBASE_SR: 812 case I40E_PHY_TYPE_10GBASE_LR: 813 case I40E_PHY_TYPE_1000BASE_SX: 814 case I40E_PHY_TYPE_1000BASE_LX: 815 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 816 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 817 ethtool_link_ksettings_add_link_mode(ks, supported, 818 25000baseSR_Full); 819 ethtool_link_ksettings_add_link_mode(ks, advertising, 820 25000baseSR_Full); 821 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 822 ethtool_link_ksettings_add_link_mode(ks, supported, 823 10000baseSR_Full); 824 ethtool_link_ksettings_add_link_mode(ks, advertising, 825 10000baseSR_Full); 826 ethtool_link_ksettings_add_link_mode(ks, supported, 827 10000baseLR_Full); 828 ethtool_link_ksettings_add_link_mode(ks, advertising, 829 10000baseLR_Full); 830 ethtool_link_ksettings_add_link_mode(ks, supported, 831 1000baseX_Full); 832 ethtool_link_ksettings_add_link_mode(ks, advertising, 833 1000baseX_Full); 834 ethtool_link_ksettings_add_link_mode(ks, supported, 835 10000baseT_Full); 836 if (hw_link_info->module_type[2] & 837 I40E_MODULE_TYPE_1000BASE_SX || 838 hw_link_info->module_type[2] & 839 I40E_MODULE_TYPE_1000BASE_LX) { 840 ethtool_link_ksettings_add_link_mode(ks, supported, 841 1000baseT_Full); 842 if (hw_link_info->requested_speeds & 843 I40E_LINK_SPEED_1GB) 844 ethtool_link_ksettings_add_link_mode( 845 ks, advertising, 1000baseT_Full); 846 } 847 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 848 ethtool_link_ksettings_add_link_mode(ks, advertising, 849 10000baseT_Full); 850 break; 851 case I40E_PHY_TYPE_10GBASE_T: 852 case I40E_PHY_TYPE_5GBASE_T_LINK_STATUS: 853 case I40E_PHY_TYPE_2_5GBASE_T_LINK_STATUS: 854 case I40E_PHY_TYPE_1000BASE_T: 855 case I40E_PHY_TYPE_100BASE_TX: 856 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 857 ethtool_link_ksettings_add_link_mode(ks, supported, 858 10000baseT_Full); 859 ethtool_link_ksettings_add_link_mode(ks, supported, 860 5000baseT_Full); 861 ethtool_link_ksettings_add_link_mode(ks, supported, 862 2500baseT_Full); 863 ethtool_link_ksettings_add_link_mode(ks, supported, 864 1000baseT_Full); 865 ethtool_link_ksettings_add_link_mode(ks, supported, 866 100baseT_Full); 867 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 868 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 869 ethtool_link_ksettings_add_link_mode(ks, advertising, 870 10000baseT_Full); 871 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB) 872 ethtool_link_ksettings_add_link_mode(ks, advertising, 873 5000baseT_Full); 874 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB) 875 ethtool_link_ksettings_add_link_mode(ks, advertising, 876 2500baseT_Full); 877 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 878 ethtool_link_ksettings_add_link_mode(ks, advertising, 879 1000baseT_Full); 880 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 881 ethtool_link_ksettings_add_link_mode(ks, advertising, 882 100baseT_Full); 883 break; 884 case I40E_PHY_TYPE_1000BASE_T_OPTICAL: 885 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 886 ethtool_link_ksettings_add_link_mode(ks, supported, 887 1000baseT_Full); 888 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 889 ethtool_link_ksettings_add_link_mode(ks, advertising, 890 1000baseT_Full); 891 break; 892 case I40E_PHY_TYPE_10GBASE_CR1_CU: 893 case I40E_PHY_TYPE_10GBASE_CR1: 894 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 895 ethtool_link_ksettings_add_link_mode(ks, supported, 896 10000baseT_Full); 897 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 898 ethtool_link_ksettings_add_link_mode(ks, advertising, 899 10000baseT_Full); 900 break; 901 case I40E_PHY_TYPE_XAUI: 902 case I40E_PHY_TYPE_XFI: 903 case I40E_PHY_TYPE_SFI: 904 case I40E_PHY_TYPE_10GBASE_SFPP_CU: 905 case I40E_PHY_TYPE_10GBASE_AOC: 906 ethtool_link_ksettings_add_link_mode(ks, supported, 907 10000baseT_Full); 908 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 909 ethtool_link_ksettings_add_link_mode(ks, advertising, 910 10000baseT_Full); 911 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 912 break; 913 case I40E_PHY_TYPE_SGMII: 914 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 915 ethtool_link_ksettings_add_link_mode(ks, supported, 916 1000baseT_Full); 917 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 918 ethtool_link_ksettings_add_link_mode(ks, advertising, 919 1000baseT_Full); 920 if (test_bit(I40E_HW_CAP_100M_SGMII, pf->hw.caps)) { 921 ethtool_link_ksettings_add_link_mode(ks, supported, 922 100baseT_Full); 923 if (hw_link_info->requested_speeds & 924 I40E_LINK_SPEED_100MB) 925 ethtool_link_ksettings_add_link_mode( 926 ks, advertising, 100baseT_Full); 927 } 928 break; 929 case I40E_PHY_TYPE_40GBASE_KR4: 930 case I40E_PHY_TYPE_25GBASE_KR: 931 case I40E_PHY_TYPE_20GBASE_KR2: 932 case I40E_PHY_TYPE_10GBASE_KR: 933 case I40E_PHY_TYPE_10GBASE_KX4: 934 case I40E_PHY_TYPE_1000BASE_KX: 935 ethtool_link_ksettings_add_link_mode(ks, supported, 936 40000baseKR4_Full); 937 ethtool_link_ksettings_add_link_mode(ks, supported, 938 25000baseKR_Full); 939 ethtool_link_ksettings_add_link_mode(ks, supported, 940 20000baseKR2_Full); 941 ethtool_link_ksettings_add_link_mode(ks, supported, 942 10000baseKR_Full); 943 ethtool_link_ksettings_add_link_mode(ks, supported, 944 10000baseKX4_Full); 945 ethtool_link_ksettings_add_link_mode(ks, supported, 946 1000baseKX_Full); 947 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 948 ethtool_link_ksettings_add_link_mode(ks, advertising, 949 40000baseKR4_Full); 950 ethtool_link_ksettings_add_link_mode(ks, advertising, 951 25000baseKR_Full); 952 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 953 ethtool_link_ksettings_add_link_mode(ks, advertising, 954 20000baseKR2_Full); 955 ethtool_link_ksettings_add_link_mode(ks, advertising, 956 10000baseKR_Full); 957 ethtool_link_ksettings_add_link_mode(ks, advertising, 958 10000baseKX4_Full); 959 ethtool_link_ksettings_add_link_mode(ks, advertising, 960 1000baseKX_Full); 961 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 962 break; 963 case I40E_PHY_TYPE_25GBASE_CR: 964 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 965 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 966 ethtool_link_ksettings_add_link_mode(ks, supported, 967 25000baseCR_Full); 968 ethtool_link_ksettings_add_link_mode(ks, advertising, 969 25000baseCR_Full); 970 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 971 972 break; 973 case I40E_PHY_TYPE_25GBASE_AOC: 974 case I40E_PHY_TYPE_25GBASE_ACC: 975 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 976 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 977 ethtool_link_ksettings_add_link_mode(ks, supported, 978 25000baseCR_Full); 979 ethtool_link_ksettings_add_link_mode(ks, advertising, 980 25000baseCR_Full); 981 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 982 983 ethtool_link_ksettings_add_link_mode(ks, supported, 984 10000baseCR_Full); 985 ethtool_link_ksettings_add_link_mode(ks, advertising, 986 10000baseCR_Full); 987 break; 988 default: 989 /* if we got here and link is up something bad is afoot */ 990 netdev_info(netdev, 991 "WARNING: Link is up but PHY type 0x%x is not recognized, or incorrect cable is in use\n", 992 hw_link_info->phy_type); 993 } 994 995 /* Now that we've worked out everything that could be supported by the 996 * current PHY type, get what is supported by the NVM and intersect 997 * them to get what is truly supported 998 */ 999 memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings)); 1000 i40e_phy_type_to_ethtool(pf, &cap_ksettings); 1001 ethtool_intersect_link_masks(ks, &cap_ksettings); 1002 1003 /* Set speed and duplex */ 1004 switch (link_speed) { 1005 case I40E_LINK_SPEED_40GB: 1006 ks->base.speed = SPEED_40000; 1007 break; 1008 case I40E_LINK_SPEED_25GB: 1009 ks->base.speed = SPEED_25000; 1010 break; 1011 case I40E_LINK_SPEED_20GB: 1012 ks->base.speed = SPEED_20000; 1013 break; 1014 case I40E_LINK_SPEED_10GB: 1015 ks->base.speed = SPEED_10000; 1016 break; 1017 case I40E_LINK_SPEED_5GB: 1018 ks->base.speed = SPEED_5000; 1019 break; 1020 case I40E_LINK_SPEED_2_5GB: 1021 ks->base.speed = SPEED_2500; 1022 break; 1023 case I40E_LINK_SPEED_1GB: 1024 ks->base.speed = SPEED_1000; 1025 break; 1026 case I40E_LINK_SPEED_100MB: 1027 ks->base.speed = SPEED_100; 1028 break; 1029 default: 1030 ks->base.speed = SPEED_UNKNOWN; 1031 break; 1032 } 1033 ks->base.duplex = DUPLEX_FULL; 1034 } 1035 1036 /** 1037 * i40e_get_settings_link_down - Get the Link settings for when link is down 1038 * @hw: hw structure 1039 * @ks: ethtool ksettings to fill in 1040 * @pf: pointer to physical function struct 1041 * 1042 * Reports link settings that can be determined when link is down 1043 **/ 1044 static void i40e_get_settings_link_down(struct i40e_hw *hw, 1045 struct ethtool_link_ksettings *ks, 1046 struct i40e_pf *pf) 1047 { 1048 /* link is down and the driver needs to fall back on 1049 * supported phy types to figure out what info to display 1050 */ 1051 i40e_phy_type_to_ethtool(pf, ks); 1052 1053 /* With no link speed and duplex are unknown */ 1054 ks->base.speed = SPEED_UNKNOWN; 1055 ks->base.duplex = DUPLEX_UNKNOWN; 1056 } 1057 1058 /** 1059 * i40e_get_link_ksettings - Get Link Speed and Duplex settings 1060 * @netdev: network interface device structure 1061 * @ks: ethtool ksettings 1062 * 1063 * Reports speed/duplex settings based on media_type 1064 **/ 1065 static int i40e_get_link_ksettings(struct net_device *netdev, 1066 struct ethtool_link_ksettings *ks) 1067 { 1068 struct i40e_netdev_priv *np = netdev_priv(netdev); 1069 struct i40e_pf *pf = np->vsi->back; 1070 struct i40e_hw *hw = &pf->hw; 1071 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1072 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 1073 1074 ethtool_link_ksettings_zero_link_mode(ks, supported); 1075 ethtool_link_ksettings_zero_link_mode(ks, advertising); 1076 1077 if (link_up) 1078 i40e_get_settings_link_up(hw, ks, netdev, pf); 1079 else 1080 i40e_get_settings_link_down(hw, ks, pf); 1081 1082 /* Now set the settings that don't rely on link being up/down */ 1083 /* Set autoneg settings */ 1084 ks->base.autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 1085 AUTONEG_ENABLE : AUTONEG_DISABLE); 1086 1087 /* Set media type settings */ 1088 switch (hw->phy.media_type) { 1089 case I40E_MEDIA_TYPE_BACKPLANE: 1090 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 1091 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane); 1092 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 1093 ethtool_link_ksettings_add_link_mode(ks, advertising, 1094 Backplane); 1095 ks->base.port = PORT_NONE; 1096 break; 1097 case I40E_MEDIA_TYPE_BASET: 1098 ethtool_link_ksettings_add_link_mode(ks, supported, TP); 1099 ethtool_link_ksettings_add_link_mode(ks, advertising, TP); 1100 ks->base.port = PORT_TP; 1101 break; 1102 case I40E_MEDIA_TYPE_DA: 1103 case I40E_MEDIA_TYPE_CX4: 1104 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1105 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 1106 ks->base.port = PORT_DA; 1107 break; 1108 case I40E_MEDIA_TYPE_FIBER: 1109 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1110 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 1111 ks->base.port = PORT_FIBRE; 1112 break; 1113 case I40E_MEDIA_TYPE_UNKNOWN: 1114 default: 1115 ks->base.port = PORT_OTHER; 1116 break; 1117 } 1118 1119 /* Set flow control settings */ 1120 ethtool_link_ksettings_add_link_mode(ks, supported, Pause); 1121 ethtool_link_ksettings_add_link_mode(ks, supported, Asym_Pause); 1122 1123 switch (hw->fc.requested_mode) { 1124 case I40E_FC_FULL: 1125 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1126 break; 1127 case I40E_FC_TX_PAUSE: 1128 ethtool_link_ksettings_add_link_mode(ks, advertising, 1129 Asym_Pause); 1130 break; 1131 case I40E_FC_RX_PAUSE: 1132 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1133 ethtool_link_ksettings_add_link_mode(ks, advertising, 1134 Asym_Pause); 1135 break; 1136 default: 1137 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause); 1138 ethtool_link_ksettings_del_link_mode(ks, advertising, 1139 Asym_Pause); 1140 break; 1141 } 1142 1143 return 0; 1144 } 1145 1146 #define I40E_LBIT_SIZE 8 1147 /** 1148 * i40e_speed_to_link_speed - Translate decimal speed to i40e_aq_link_speed 1149 * @speed: speed in decimal 1150 * @ks: ethtool ksettings 1151 * 1152 * Return i40e_aq_link_speed based on speed 1153 **/ 1154 static enum i40e_aq_link_speed 1155 i40e_speed_to_link_speed(__u32 speed, const struct ethtool_link_ksettings *ks) 1156 { 1157 enum i40e_aq_link_speed link_speed = I40E_LINK_SPEED_UNKNOWN; 1158 bool speed_changed = false; 1159 int i, j; 1160 1161 static const struct { 1162 __u32 speed; 1163 enum i40e_aq_link_speed link_speed; 1164 __u8 bit[I40E_LBIT_SIZE]; 1165 } i40e_speed_lut[] = { 1166 #define I40E_LBIT(mode) ETHTOOL_LINK_MODE_ ## mode ##_Full_BIT 1167 {SPEED_100, I40E_LINK_SPEED_100MB, {I40E_LBIT(100baseT)} }, 1168 {SPEED_1000, I40E_LINK_SPEED_1GB, 1169 {I40E_LBIT(1000baseT), I40E_LBIT(1000baseX), 1170 I40E_LBIT(1000baseKX)} }, 1171 {SPEED_10000, I40E_LINK_SPEED_10GB, 1172 {I40E_LBIT(10000baseT), I40E_LBIT(10000baseKR), 1173 I40E_LBIT(10000baseLR), I40E_LBIT(10000baseCR), 1174 I40E_LBIT(10000baseSR), I40E_LBIT(10000baseKX4)} }, 1175 1176 {SPEED_25000, I40E_LINK_SPEED_25GB, 1177 {I40E_LBIT(25000baseCR), I40E_LBIT(25000baseKR), 1178 I40E_LBIT(25000baseSR)} }, 1179 {SPEED_40000, I40E_LINK_SPEED_40GB, 1180 {I40E_LBIT(40000baseKR4), I40E_LBIT(40000baseCR4), 1181 I40E_LBIT(40000baseSR4), I40E_LBIT(40000baseLR4)} }, 1182 {SPEED_20000, I40E_LINK_SPEED_20GB, 1183 {I40E_LBIT(20000baseKR2)} }, 1184 {SPEED_2500, I40E_LINK_SPEED_2_5GB, {I40E_LBIT(2500baseT)} }, 1185 {SPEED_5000, I40E_LINK_SPEED_5GB, {I40E_LBIT(2500baseT)} } 1186 #undef I40E_LBIT 1187 }; 1188 1189 for (i = 0; i < ARRAY_SIZE(i40e_speed_lut); i++) { 1190 if (i40e_speed_lut[i].speed == speed) { 1191 for (j = 0; j < I40E_LBIT_SIZE; j++) { 1192 if (test_bit(i40e_speed_lut[i].bit[j], 1193 ks->link_modes.supported)) { 1194 speed_changed = true; 1195 break; 1196 } 1197 if (!i40e_speed_lut[i].bit[j]) 1198 break; 1199 } 1200 if (speed_changed) { 1201 link_speed = i40e_speed_lut[i].link_speed; 1202 break; 1203 } 1204 } 1205 } 1206 return link_speed; 1207 } 1208 1209 #undef I40E_LBIT_SIZE 1210 1211 /** 1212 * i40e_set_link_ksettings - Set Speed and Duplex 1213 * @netdev: network interface device structure 1214 * @ks: ethtool ksettings 1215 * 1216 * Set speed/duplex per media_types advertised/forced 1217 **/ 1218 static int i40e_set_link_ksettings(struct net_device *netdev, 1219 const struct ethtool_link_ksettings *ks) 1220 { 1221 struct i40e_netdev_priv *np = netdev_priv(netdev); 1222 struct i40e_aq_get_phy_abilities_resp abilities; 1223 struct ethtool_link_ksettings safe_ks; 1224 struct ethtool_link_ksettings copy_ks; 1225 struct i40e_aq_set_phy_config config; 1226 struct i40e_pf *pf = np->vsi->back; 1227 enum i40e_aq_link_speed link_speed; 1228 struct i40e_vsi *vsi = np->vsi; 1229 struct i40e_hw *hw = &pf->hw; 1230 bool autoneg_changed = false; 1231 int timeout = 50; 1232 int status = 0; 1233 int err = 0; 1234 __u32 speed; 1235 u8 autoneg; 1236 1237 /* Changing port settings is not supported if this isn't the 1238 * port's controlling PF 1239 */ 1240 if (hw->partition_id != 1) { 1241 i40e_partition_setting_complaint(pf); 1242 return -EOPNOTSUPP; 1243 } 1244 if (vsi != pf->vsi[pf->lan_vsi]) 1245 return -EOPNOTSUPP; 1246 if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET && 1247 hw->phy.media_type != I40E_MEDIA_TYPE_FIBER && 1248 hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE && 1249 hw->phy.media_type != I40E_MEDIA_TYPE_DA && 1250 hw->phy.link_info.link_info & I40E_AQ_LINK_UP) 1251 return -EOPNOTSUPP; 1252 if (hw->device_id == I40E_DEV_ID_KX_B || 1253 hw->device_id == I40E_DEV_ID_KX_C || 1254 hw->device_id == I40E_DEV_ID_20G_KR2 || 1255 hw->device_id == I40E_DEV_ID_20G_KR2_A || 1256 hw->device_id == I40E_DEV_ID_25G_B || 1257 hw->device_id == I40E_DEV_ID_KX_X722) { 1258 netdev_info(netdev, "Changing settings is not supported on backplane.\n"); 1259 return -EOPNOTSUPP; 1260 } 1261 1262 /* copy the ksettings to copy_ks to avoid modifying the origin */ 1263 memcpy(©_ks, ks, sizeof(struct ethtool_link_ksettings)); 1264 1265 /* save autoneg out of ksettings */ 1266 autoneg = copy_ks.base.autoneg; 1267 speed = copy_ks.base.speed; 1268 1269 /* get our own copy of the bits to check against */ 1270 memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings)); 1271 safe_ks.base.cmd = copy_ks.base.cmd; 1272 safe_ks.base.link_mode_masks_nwords = 1273 copy_ks.base.link_mode_masks_nwords; 1274 i40e_get_link_ksettings(netdev, &safe_ks); 1275 1276 /* Get link modes supported by hardware and check against modes 1277 * requested by the user. Return an error if unsupported mode was set. 1278 */ 1279 if (!bitmap_subset(copy_ks.link_modes.advertising, 1280 safe_ks.link_modes.supported, 1281 __ETHTOOL_LINK_MODE_MASK_NBITS)) 1282 return -EINVAL; 1283 1284 /* set autoneg back to what it currently is */ 1285 copy_ks.base.autoneg = safe_ks.base.autoneg; 1286 copy_ks.base.speed = safe_ks.base.speed; 1287 1288 /* If copy_ks.base and safe_ks.base are not the same now, then they are 1289 * trying to set something that we do not support. 1290 */ 1291 if (memcmp(©_ks.base, &safe_ks.base, 1292 sizeof(struct ethtool_link_settings))) { 1293 netdev_err(netdev, "Only speed and autoneg are supported.\n"); 1294 return -EOPNOTSUPP; 1295 } 1296 1297 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { 1298 timeout--; 1299 if (!timeout) 1300 return -EBUSY; 1301 usleep_range(1000, 2000); 1302 } 1303 1304 /* Get the current phy config */ 1305 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1306 NULL); 1307 if (status) { 1308 err = -EAGAIN; 1309 goto done; 1310 } 1311 1312 /* Copy abilities to config in case autoneg is not 1313 * set below 1314 */ 1315 memset(&config, 0, sizeof(struct i40e_aq_set_phy_config)); 1316 config.abilities = abilities.abilities; 1317 1318 /* Check autoneg */ 1319 if (autoneg == AUTONEG_ENABLE) { 1320 /* If autoneg was not already enabled */ 1321 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) { 1322 /* If autoneg is not supported, return error */ 1323 if (!ethtool_link_ksettings_test_link_mode(&safe_ks, 1324 supported, 1325 Autoneg)) { 1326 netdev_info(netdev, "Autoneg not supported on this phy\n"); 1327 err = -EINVAL; 1328 goto done; 1329 } 1330 /* Autoneg is allowed to change */ 1331 config.abilities = abilities.abilities | 1332 I40E_AQ_PHY_ENABLE_AN; 1333 autoneg_changed = true; 1334 } 1335 } else { 1336 /* If autoneg is currently enabled */ 1337 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) { 1338 /* If autoneg is supported 10GBASE_T is the only PHY 1339 * that can disable it, so otherwise return error 1340 */ 1341 if (ethtool_link_ksettings_test_link_mode(&safe_ks, 1342 supported, 1343 Autoneg) && 1344 hw->phy.media_type != I40E_MEDIA_TYPE_BASET) { 1345 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n"); 1346 err = -EINVAL; 1347 goto done; 1348 } 1349 /* Autoneg is allowed to change */ 1350 config.abilities = abilities.abilities & 1351 ~I40E_AQ_PHY_ENABLE_AN; 1352 autoneg_changed = true; 1353 } 1354 } 1355 1356 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1357 100baseT_Full)) 1358 config.link_speed |= I40E_LINK_SPEED_100MB; 1359 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1360 1000baseT_Full) || 1361 ethtool_link_ksettings_test_link_mode(ks, advertising, 1362 1000baseX_Full) || 1363 ethtool_link_ksettings_test_link_mode(ks, advertising, 1364 1000baseKX_Full)) 1365 config.link_speed |= I40E_LINK_SPEED_1GB; 1366 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1367 10000baseT_Full) || 1368 ethtool_link_ksettings_test_link_mode(ks, advertising, 1369 10000baseKX4_Full) || 1370 ethtool_link_ksettings_test_link_mode(ks, advertising, 1371 10000baseKR_Full) || 1372 ethtool_link_ksettings_test_link_mode(ks, advertising, 1373 10000baseCR_Full) || 1374 ethtool_link_ksettings_test_link_mode(ks, advertising, 1375 10000baseSR_Full) || 1376 ethtool_link_ksettings_test_link_mode(ks, advertising, 1377 10000baseLR_Full)) 1378 config.link_speed |= I40E_LINK_SPEED_10GB; 1379 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1380 2500baseT_Full)) 1381 config.link_speed |= I40E_LINK_SPEED_2_5GB; 1382 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1383 5000baseT_Full)) 1384 config.link_speed |= I40E_LINK_SPEED_5GB; 1385 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1386 20000baseKR2_Full)) 1387 config.link_speed |= I40E_LINK_SPEED_20GB; 1388 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1389 25000baseCR_Full) || 1390 ethtool_link_ksettings_test_link_mode(ks, advertising, 1391 25000baseKR_Full) || 1392 ethtool_link_ksettings_test_link_mode(ks, advertising, 1393 25000baseSR_Full)) 1394 config.link_speed |= I40E_LINK_SPEED_25GB; 1395 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1396 40000baseKR4_Full) || 1397 ethtool_link_ksettings_test_link_mode(ks, advertising, 1398 40000baseCR4_Full) || 1399 ethtool_link_ksettings_test_link_mode(ks, advertising, 1400 40000baseSR4_Full) || 1401 ethtool_link_ksettings_test_link_mode(ks, advertising, 1402 40000baseLR4_Full)) 1403 config.link_speed |= I40E_LINK_SPEED_40GB; 1404 1405 /* Autonegotiation must be disabled to change speed */ 1406 if ((speed != SPEED_UNKNOWN && safe_ks.base.speed != speed) && 1407 (autoneg == AUTONEG_DISABLE || 1408 (safe_ks.base.autoneg == AUTONEG_DISABLE && !autoneg_changed))) { 1409 link_speed = i40e_speed_to_link_speed(speed, ks); 1410 if (link_speed == I40E_LINK_SPEED_UNKNOWN) { 1411 netdev_info(netdev, "Given speed is not supported\n"); 1412 err = -EOPNOTSUPP; 1413 goto done; 1414 } else { 1415 config.link_speed = link_speed; 1416 } 1417 } else { 1418 if (safe_ks.base.speed != speed) { 1419 netdev_info(netdev, 1420 "Unable to set speed, disable autoneg\n"); 1421 err = -EOPNOTSUPP; 1422 goto done; 1423 } 1424 } 1425 1426 /* If speed didn't get set, set it to what it currently is. 1427 * This is needed because if advertise is 0 (as it is when autoneg 1428 * is disabled) then speed won't get set. 1429 */ 1430 if (!config.link_speed) 1431 config.link_speed = abilities.link_speed; 1432 if (autoneg_changed || abilities.link_speed != config.link_speed) { 1433 /* copy over the rest of the abilities */ 1434 config.phy_type = abilities.phy_type; 1435 config.phy_type_ext = abilities.phy_type_ext; 1436 config.eee_capability = abilities.eee_capability; 1437 config.eeer = abilities.eeer_val; 1438 config.low_power_ctrl = abilities.d3_lpan; 1439 config.fec_config = abilities.fec_cfg_curr_mod_ext_info & 1440 I40E_AQ_PHY_FEC_CONFIG_MASK; 1441 1442 /* save the requested speeds */ 1443 hw->phy.link_info.requested_speeds = config.link_speed; 1444 /* set link and auto negotiation so changes take effect */ 1445 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 1446 /* If link is up put link down */ 1447 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) { 1448 /* Tell the OS link is going down, the link will go 1449 * back up when fw says it is ready asynchronously 1450 */ 1451 i40e_print_link_message(vsi, false); 1452 netif_carrier_off(netdev); 1453 netif_tx_stop_all_queues(netdev); 1454 } 1455 1456 /* make the aq call */ 1457 status = i40e_aq_set_phy_config(hw, &config, NULL); 1458 if (status) { 1459 netdev_info(netdev, 1460 "Set phy config failed, err %pe aq_err %s\n", 1461 ERR_PTR(status), 1462 i40e_aq_str(hw, hw->aq.asq_last_status)); 1463 err = -EAGAIN; 1464 goto done; 1465 } 1466 1467 status = i40e_update_link_info(hw); 1468 if (status) 1469 netdev_dbg(netdev, 1470 "Updating link info failed with err %pe aq_err %s\n", 1471 ERR_PTR(status), 1472 i40e_aq_str(hw, hw->aq.asq_last_status)); 1473 1474 } else { 1475 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n"); 1476 } 1477 1478 done: 1479 clear_bit(__I40E_CONFIG_BUSY, pf->state); 1480 1481 return err; 1482 } 1483 1484 static int i40e_set_fec_cfg(struct net_device *netdev, u8 fec_cfg) 1485 { 1486 struct i40e_netdev_priv *np = netdev_priv(netdev); 1487 struct i40e_aq_get_phy_abilities_resp abilities; 1488 struct i40e_pf *pf = np->vsi->back; 1489 struct i40e_hw *hw = &pf->hw; 1490 int status = 0; 1491 int err = 0; 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 %pe aq_err %s\n", 1519 ERR_PTR(status), 1520 i40e_aq_str(hw, hw->aq.asq_last_status)); 1521 err = -EAGAIN; 1522 goto done; 1523 } 1524 i40e_set_fec_in_flags(fec_cfg, pf->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 %pe aq_err %s\n", 1533 ERR_PTR(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 int 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 !test_bit(I40E_HW_CAP_X722_FEC_REQUEST, hw->caps)) { 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 int 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 %pe aq_err %s\n", 1640 ERR_PTR(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 u8 aq_failures; 1701 int err = 0; 1702 int status; 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 %pe aq_err %s\n", 1757 ERR_PTR(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 %pe aq_err %s\n", 1763 ERR_PTR(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 %pe aq_err %s\n", 1769 ERR_PTR(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 i40e_nvm_version_str(&pf->hw, drvinfo->fw_version, 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 u32 i40e_get_max_num_descriptors(struct i40e_pf *pf) 2015 { 2016 struct i40e_hw *hw = &pf->hw; 2017 2018 switch (hw->mac.type) { 2019 case I40E_MAC_XL710: 2020 return I40E_MAX_NUM_DESCRIPTORS_XL710; 2021 default: 2022 return I40E_MAX_NUM_DESCRIPTORS; 2023 } 2024 } 2025 2026 static void i40e_get_ringparam(struct net_device *netdev, 2027 struct ethtool_ringparam *ring, 2028 struct kernel_ethtool_ringparam *kernel_ring, 2029 struct netlink_ext_ack *extack) 2030 { 2031 struct i40e_netdev_priv *np = netdev_priv(netdev); 2032 struct i40e_pf *pf = np->vsi->back; 2033 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; 2034 2035 ring->rx_max_pending = i40e_get_max_num_descriptors(pf); 2036 ring->tx_max_pending = i40e_get_max_num_descriptors(pf); 2037 ring->rx_mini_max_pending = 0; 2038 ring->rx_jumbo_max_pending = 0; 2039 ring->rx_pending = vsi->rx_rings[0]->count; 2040 ring->tx_pending = vsi->tx_rings[0]->count; 2041 ring->rx_mini_pending = 0; 2042 ring->rx_jumbo_pending = 0; 2043 } 2044 2045 static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index) 2046 { 2047 if (i40e_enabled_xdp_vsi(vsi)) { 2048 return index < vsi->num_queue_pairs || 2049 (index >= vsi->alloc_queue_pairs && 2050 index < vsi->alloc_queue_pairs + vsi->num_queue_pairs); 2051 } 2052 2053 return index < vsi->num_queue_pairs; 2054 } 2055 2056 static int i40e_set_ringparam(struct net_device *netdev, 2057 struct ethtool_ringparam *ring, 2058 struct kernel_ethtool_ringparam *kernel_ring, 2059 struct netlink_ext_ack *extack) 2060 { 2061 u32 new_rx_count, new_tx_count, max_num_descriptors; 2062 struct i40e_ring *tx_rings = NULL, *rx_rings = NULL; 2063 struct i40e_netdev_priv *np = netdev_priv(netdev); 2064 struct i40e_hw *hw = &np->vsi->back->hw; 2065 struct i40e_vsi *vsi = np->vsi; 2066 struct i40e_pf *pf = vsi->back; 2067 u16 tx_alloc_queue_pairs; 2068 int timeout = 50; 2069 int i, err = 0; 2070 2071 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) 2072 return -EINVAL; 2073 2074 max_num_descriptors = i40e_get_max_num_descriptors(pf); 2075 if (ring->tx_pending > max_num_descriptors || 2076 ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS || 2077 ring->rx_pending > max_num_descriptors || 2078 ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) { 2079 netdev_info(netdev, 2080 "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n", 2081 ring->tx_pending, ring->rx_pending, 2082 I40E_MIN_NUM_DESCRIPTORS, max_num_descriptors); 2083 return -EINVAL; 2084 } 2085 2086 new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 2087 new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 2088 2089 /* if nothing to do return success */ 2090 if ((new_tx_count == vsi->tx_rings[0]->count) && 2091 (new_rx_count == vsi->rx_rings[0]->count)) 2092 return 0; 2093 2094 /* If there is a AF_XDP page pool attached to any of Rx rings, 2095 * disallow changing the number of descriptors -- regardless 2096 * if the netdev is running or not. 2097 */ 2098 if (i40e_xsk_any_rx_ring_enabled(vsi)) 2099 return -EBUSY; 2100 2101 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { 2102 timeout--; 2103 if (!timeout) 2104 return -EBUSY; 2105 usleep_range(1000, 2000); 2106 } 2107 2108 if (!netif_running(vsi->netdev)) { 2109 /* simple case - set for the next time the netdev is started */ 2110 for (i = 0; i < vsi->num_queue_pairs; i++) { 2111 vsi->tx_rings[i]->count = new_tx_count; 2112 vsi->rx_rings[i]->count = new_rx_count; 2113 if (i40e_enabled_xdp_vsi(vsi)) 2114 vsi->xdp_rings[i]->count = new_tx_count; 2115 } 2116 vsi->num_tx_desc = new_tx_count; 2117 vsi->num_rx_desc = new_rx_count; 2118 goto done; 2119 } 2120 2121 /* We can't just free everything and then setup again, 2122 * because the ISRs in MSI-X mode get passed pointers 2123 * to the Tx and Rx ring structs. 2124 */ 2125 2126 /* alloc updated Tx and XDP Tx resources */ 2127 tx_alloc_queue_pairs = vsi->alloc_queue_pairs * 2128 (i40e_enabled_xdp_vsi(vsi) ? 2 : 1); 2129 if (new_tx_count != vsi->tx_rings[0]->count) { 2130 netdev_info(netdev, 2131 "Changing Tx descriptor count from %d to %d.\n", 2132 vsi->tx_rings[0]->count, new_tx_count); 2133 tx_rings = kcalloc(tx_alloc_queue_pairs, 2134 sizeof(struct i40e_ring), GFP_KERNEL); 2135 if (!tx_rings) { 2136 err = -ENOMEM; 2137 goto done; 2138 } 2139 2140 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2141 if (!i40e_active_tx_ring_index(vsi, i)) 2142 continue; 2143 2144 tx_rings[i] = *vsi->tx_rings[i]; 2145 tx_rings[i].count = new_tx_count; 2146 /* the desc and bi pointers will be reallocated in the 2147 * setup call 2148 */ 2149 tx_rings[i].desc = NULL; 2150 tx_rings[i].rx_bi = NULL; 2151 err = i40e_setup_tx_descriptors(&tx_rings[i]); 2152 if (err) { 2153 while (i) { 2154 i--; 2155 if (!i40e_active_tx_ring_index(vsi, i)) 2156 continue; 2157 i40e_free_tx_resources(&tx_rings[i]); 2158 } 2159 kfree(tx_rings); 2160 tx_rings = NULL; 2161 2162 goto done; 2163 } 2164 } 2165 } 2166 2167 /* alloc updated Rx resources */ 2168 if (new_rx_count != vsi->rx_rings[0]->count) { 2169 netdev_info(netdev, 2170 "Changing Rx descriptor count from %d to %d\n", 2171 vsi->rx_rings[0]->count, new_rx_count); 2172 rx_rings = kcalloc(vsi->alloc_queue_pairs, 2173 sizeof(struct i40e_ring), GFP_KERNEL); 2174 if (!rx_rings) { 2175 err = -ENOMEM; 2176 goto free_tx; 2177 } 2178 2179 for (i = 0; i < vsi->num_queue_pairs; i++) { 2180 u16 unused; 2181 2182 /* clone ring and setup updated count */ 2183 rx_rings[i] = *vsi->rx_rings[i]; 2184 rx_rings[i].count = new_rx_count; 2185 /* the desc and bi pointers will be reallocated in the 2186 * setup call 2187 */ 2188 rx_rings[i].desc = NULL; 2189 rx_rings[i].rx_bi = NULL; 2190 /* Clear cloned XDP RX-queue info before setup call */ 2191 memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq)); 2192 /* this is to allow wr32 to have something to write to 2193 * during early allocation of Rx buffers 2194 */ 2195 rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS; 2196 err = i40e_setup_rx_descriptors(&rx_rings[i]); 2197 if (err) 2198 goto rx_unwind; 2199 2200 /* now allocate the Rx buffers to make sure the OS 2201 * has enough memory, any failure here means abort 2202 */ 2203 unused = I40E_DESC_UNUSED(&rx_rings[i]); 2204 err = i40e_alloc_rx_buffers(&rx_rings[i], unused); 2205 rx_unwind: 2206 if (err) { 2207 do { 2208 i40e_free_rx_resources(&rx_rings[i]); 2209 } while (i--); 2210 kfree(rx_rings); 2211 rx_rings = NULL; 2212 2213 goto free_tx; 2214 } 2215 } 2216 } 2217 2218 /* Bring interface down, copy in the new ring info, 2219 * then restore the interface 2220 */ 2221 i40e_down(vsi); 2222 2223 if (tx_rings) { 2224 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2225 if (i40e_active_tx_ring_index(vsi, i)) { 2226 i40e_free_tx_resources(vsi->tx_rings[i]); 2227 *vsi->tx_rings[i] = tx_rings[i]; 2228 } 2229 } 2230 kfree(tx_rings); 2231 tx_rings = NULL; 2232 } 2233 2234 if (rx_rings) { 2235 for (i = 0; i < vsi->num_queue_pairs; i++) { 2236 i40e_free_rx_resources(vsi->rx_rings[i]); 2237 /* get the real tail offset */ 2238 rx_rings[i].tail = vsi->rx_rings[i]->tail; 2239 /* this is to fake out the allocation routine 2240 * into thinking it has to realloc everything 2241 * but the recycling logic will let us re-use 2242 * the buffers allocated above 2243 */ 2244 rx_rings[i].next_to_use = 0; 2245 rx_rings[i].next_to_clean = 0; 2246 rx_rings[i].next_to_alloc = 0; 2247 /* do a struct copy */ 2248 *vsi->rx_rings[i] = rx_rings[i]; 2249 } 2250 kfree(rx_rings); 2251 rx_rings = NULL; 2252 } 2253 2254 vsi->num_tx_desc = new_tx_count; 2255 vsi->num_rx_desc = new_rx_count; 2256 i40e_up(vsi); 2257 2258 free_tx: 2259 /* error cleanup if the Rx allocations failed after getting Tx */ 2260 if (tx_rings) { 2261 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2262 if (i40e_active_tx_ring_index(vsi, i)) 2263 i40e_free_tx_resources(vsi->tx_rings[i]); 2264 } 2265 kfree(tx_rings); 2266 tx_rings = NULL; 2267 } 2268 2269 done: 2270 clear_bit(__I40E_CONFIG_BUSY, pf->state); 2271 2272 return err; 2273 } 2274 2275 /** 2276 * i40e_get_stats_count - return the stats count for a device 2277 * @netdev: the netdev to return the count for 2278 * 2279 * Returns the total number of statistics for this netdev. Note that even 2280 * though this is a function, it is required that the count for a specific 2281 * netdev must never change. Basing the count on static values such as the 2282 * maximum number of queues or the device type is ok. However, the API for 2283 * obtaining stats is *not* safe against changes based on non-static 2284 * values such as the *current* number of queues, or runtime flags. 2285 * 2286 * If a statistic is not always enabled, return it as part of the count 2287 * anyways, always return its string, and report its value as zero. 2288 **/ 2289 static int i40e_get_stats_count(struct net_device *netdev) 2290 { 2291 struct i40e_netdev_priv *np = netdev_priv(netdev); 2292 struct i40e_vsi *vsi = np->vsi; 2293 struct i40e_pf *pf = vsi->back; 2294 int stats_len; 2295 2296 if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1) 2297 stats_len = I40E_PF_STATS_LEN; 2298 else 2299 stats_len = I40E_VSI_STATS_LEN; 2300 2301 /* The number of stats reported for a given net_device must remain 2302 * constant throughout the life of that device. 2303 * 2304 * This is because the API for obtaining the size, strings, and stats 2305 * is spread out over three separate ethtool ioctls. There is no safe 2306 * way to lock the number of stats across these calls, so we must 2307 * assume that they will never change. 2308 * 2309 * Due to this, we report the maximum number of queues, even if not 2310 * every queue is currently configured. Since we always allocate 2311 * queues in pairs, we'll just use netdev->num_tx_queues * 2. This 2312 * works because the num_tx_queues is set at device creation and never 2313 * changes. 2314 */ 2315 stats_len += I40E_QUEUE_STATS_LEN * 2 * netdev->num_tx_queues; 2316 2317 return stats_len; 2318 } 2319 2320 static int i40e_get_sset_count(struct net_device *netdev, int sset) 2321 { 2322 struct i40e_netdev_priv *np = netdev_priv(netdev); 2323 struct i40e_vsi *vsi = np->vsi; 2324 struct i40e_pf *pf = vsi->back; 2325 2326 switch (sset) { 2327 case ETH_SS_TEST: 2328 return I40E_TEST_LEN; 2329 case ETH_SS_STATS: 2330 return i40e_get_stats_count(netdev); 2331 case ETH_SS_PRIV_FLAGS: 2332 return I40E_PRIV_FLAGS_STR_LEN + 2333 (pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0); 2334 default: 2335 return -EOPNOTSUPP; 2336 } 2337 } 2338 2339 /** 2340 * i40e_get_veb_tc_stats - copy VEB TC statistics to formatted structure 2341 * @tc: the TC statistics in VEB structure (veb->tc_stats) 2342 * @i: the index of traffic class in (veb->tc_stats) structure to copy 2343 * 2344 * Copy VEB TC statistics from structure of arrays (veb->tc_stats) to 2345 * one dimensional structure i40e_cp_veb_tc_stats. 2346 * Produce formatted i40e_cp_veb_tc_stats structure of the VEB TC 2347 * statistics for the given TC. 2348 **/ 2349 static struct i40e_cp_veb_tc_stats 2350 i40e_get_veb_tc_stats(struct i40e_veb_tc_stats *tc, unsigned int i) 2351 { 2352 struct i40e_cp_veb_tc_stats veb_tc = { 2353 .tc_rx_packets = tc->tc_rx_packets[i], 2354 .tc_rx_bytes = tc->tc_rx_bytes[i], 2355 .tc_tx_packets = tc->tc_tx_packets[i], 2356 .tc_tx_bytes = tc->tc_tx_bytes[i], 2357 }; 2358 2359 return veb_tc; 2360 } 2361 2362 /** 2363 * i40e_get_pfc_stats - copy HW PFC statistics to formatted structure 2364 * @pf: the PF device structure 2365 * @i: the priority value to copy 2366 * 2367 * The PFC stats are found as arrays in pf->stats, which is not easy to pass 2368 * into i40e_add_ethtool_stats. Produce a formatted i40e_pfc_stats structure 2369 * of the PFC stats for the given priority. 2370 **/ 2371 static inline struct i40e_pfc_stats 2372 i40e_get_pfc_stats(struct i40e_pf *pf, unsigned int i) 2373 { 2374 #define I40E_GET_PFC_STAT(stat, priority) \ 2375 .stat = pf->stats.stat[priority] 2376 2377 struct i40e_pfc_stats pfc = { 2378 I40E_GET_PFC_STAT(priority_xon_rx, i), 2379 I40E_GET_PFC_STAT(priority_xoff_rx, i), 2380 I40E_GET_PFC_STAT(priority_xon_tx, i), 2381 I40E_GET_PFC_STAT(priority_xoff_tx, i), 2382 I40E_GET_PFC_STAT(priority_xon_2_xoff, i), 2383 }; 2384 return pfc; 2385 } 2386 2387 /** 2388 * i40e_get_ethtool_stats - copy stat values into supplied buffer 2389 * @netdev: the netdev to collect stats for 2390 * @stats: ethtool stats command structure 2391 * @data: ethtool supplied buffer 2392 * 2393 * Copy the stats values for this netdev into the buffer. Expects data to be 2394 * pre-allocated to the size returned by i40e_get_stats_count.. Note that all 2395 * statistics must be copied in a static order, and the count must not change 2396 * for a given netdev. See i40e_get_stats_count for more details. 2397 * 2398 * If a statistic is not currently valid (such as a disabled queue), this 2399 * function reports its value as zero. 2400 **/ 2401 static void i40e_get_ethtool_stats(struct net_device *netdev, 2402 struct ethtool_stats *stats, u64 *data) 2403 { 2404 struct i40e_netdev_priv *np = netdev_priv(netdev); 2405 struct i40e_vsi *vsi = np->vsi; 2406 struct i40e_pf *pf = vsi->back; 2407 struct i40e_veb *veb = NULL; 2408 unsigned int i; 2409 bool veb_stats; 2410 u64 *p = data; 2411 2412 i40e_update_stats(vsi); 2413 2414 i40e_add_ethtool_stats(&data, i40e_get_vsi_stats_struct(vsi), 2415 i40e_gstrings_net_stats); 2416 2417 i40e_add_ethtool_stats(&data, vsi, i40e_gstrings_misc_stats); 2418 2419 rcu_read_lock(); 2420 for (i = 0; i < netdev->num_tx_queues; i++) { 2421 i40e_add_queue_stats(&data, READ_ONCE(vsi->tx_rings[i])); 2422 i40e_add_queue_stats(&data, READ_ONCE(vsi->rx_rings[i])); 2423 } 2424 rcu_read_unlock(); 2425 2426 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1) 2427 goto check_data_pointer; 2428 2429 veb_stats = ((pf->lan_veb != I40E_NO_VEB) && 2430 (pf->lan_veb < I40E_MAX_VEB) && 2431 test_bit(I40E_FLAG_VEB_STATS_ENA, pf->flags)); 2432 2433 if (veb_stats) { 2434 veb = pf->veb[pf->lan_veb]; 2435 i40e_update_veb_stats(veb); 2436 } 2437 2438 /* If veb stats aren't enabled, pass NULL instead of the veb so that 2439 * we initialize stats to zero and update the data pointer 2440 * intelligently 2441 */ 2442 i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL, 2443 i40e_gstrings_veb_stats); 2444 2445 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) 2446 if (veb_stats) { 2447 struct i40e_cp_veb_tc_stats veb_tc = 2448 i40e_get_veb_tc_stats(&veb->tc_stats, i); 2449 2450 i40e_add_ethtool_stats(&data, &veb_tc, 2451 i40e_gstrings_veb_tc_stats); 2452 } else { 2453 i40e_add_ethtool_stats(&data, NULL, 2454 i40e_gstrings_veb_tc_stats); 2455 } 2456 2457 i40e_add_ethtool_stats(&data, pf, i40e_gstrings_stats); 2458 2459 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { 2460 struct i40e_pfc_stats pfc = i40e_get_pfc_stats(pf, i); 2461 2462 i40e_add_ethtool_stats(&data, &pfc, i40e_gstrings_pfc_stats); 2463 } 2464 2465 check_data_pointer: 2466 WARN_ONCE(data - p != i40e_get_stats_count(netdev), 2467 "ethtool stats count mismatch!"); 2468 } 2469 2470 /** 2471 * i40e_get_stat_strings - copy stat strings into supplied buffer 2472 * @netdev: the netdev to collect strings for 2473 * @data: supplied buffer to copy strings into 2474 * 2475 * Copy the strings related to stats for this netdev. Expects data to be 2476 * pre-allocated with the size reported by i40e_get_stats_count. Note that the 2477 * strings must be copied in a static order and the total count must not 2478 * change for a given netdev. See i40e_get_stats_count for more details. 2479 **/ 2480 static void i40e_get_stat_strings(struct net_device *netdev, u8 *data) 2481 { 2482 struct i40e_netdev_priv *np = netdev_priv(netdev); 2483 struct i40e_vsi *vsi = np->vsi; 2484 struct i40e_pf *pf = vsi->back; 2485 unsigned int i; 2486 u8 *p = data; 2487 2488 i40e_add_stat_strings(&data, i40e_gstrings_net_stats); 2489 2490 i40e_add_stat_strings(&data, i40e_gstrings_misc_stats); 2491 2492 for (i = 0; i < netdev->num_tx_queues; i++) { 2493 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, 2494 "tx", i); 2495 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, 2496 "rx", i); 2497 } 2498 2499 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1) 2500 goto check_data_pointer; 2501 2502 i40e_add_stat_strings(&data, i40e_gstrings_veb_stats); 2503 2504 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) 2505 i40e_add_stat_strings(&data, i40e_gstrings_veb_tc_stats, i); 2506 2507 i40e_add_stat_strings(&data, i40e_gstrings_stats); 2508 2509 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) 2510 i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i); 2511 2512 check_data_pointer: 2513 WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN, 2514 "stat strings count mismatch!"); 2515 } 2516 2517 static void i40e_get_priv_flag_strings(struct net_device *netdev, u8 *data) 2518 { 2519 struct i40e_netdev_priv *np = netdev_priv(netdev); 2520 struct i40e_vsi *vsi = np->vsi; 2521 struct i40e_pf *pf = vsi->back; 2522 unsigned int i; 2523 u8 *p = data; 2524 2525 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) 2526 ethtool_sprintf(&p, "%s", 2527 i40e_gstrings_priv_flags[i].flag_string); 2528 if (pf->hw.pf_id != 0) 2529 return; 2530 for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++) 2531 ethtool_sprintf(&p, "%s", 2532 i40e_gl_gstrings_priv_flags[i].flag_string); 2533 } 2534 2535 static void i40e_get_strings(struct net_device *netdev, u32 stringset, 2536 u8 *data) 2537 { 2538 switch (stringset) { 2539 case ETH_SS_TEST: 2540 memcpy(data, i40e_gstrings_test, 2541 I40E_TEST_LEN * ETH_GSTRING_LEN); 2542 break; 2543 case ETH_SS_STATS: 2544 i40e_get_stat_strings(netdev, data); 2545 break; 2546 case ETH_SS_PRIV_FLAGS: 2547 i40e_get_priv_flag_strings(netdev, data); 2548 break; 2549 default: 2550 break; 2551 } 2552 } 2553 2554 static int i40e_get_ts_info(struct net_device *dev, 2555 struct ethtool_ts_info *info) 2556 { 2557 struct i40e_pf *pf = i40e_netdev_to_pf(dev); 2558 2559 /* only report HW timestamping if PTP is enabled */ 2560 if (!test_bit(I40E_FLAG_PTP_ENA, pf->flags)) 2561 return ethtool_op_get_ts_info(dev, info); 2562 2563 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | 2564 SOF_TIMESTAMPING_RX_SOFTWARE | 2565 SOF_TIMESTAMPING_SOFTWARE | 2566 SOF_TIMESTAMPING_TX_HARDWARE | 2567 SOF_TIMESTAMPING_RX_HARDWARE | 2568 SOF_TIMESTAMPING_RAW_HARDWARE; 2569 2570 if (pf->ptp_clock) 2571 info->phc_index = ptp_clock_index(pf->ptp_clock); 2572 else 2573 info->phc_index = -1; 2574 2575 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON); 2576 2577 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | 2578 BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) | 2579 BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) | 2580 BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ); 2581 2582 if (test_bit(I40E_HW_CAP_PTP_L4, pf->hw.caps)) 2583 info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) | 2584 BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) | 2585 BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) | 2586 BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) | 2587 BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) | 2588 BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) | 2589 BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) | 2590 BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ); 2591 2592 return 0; 2593 } 2594 2595 static u64 i40e_link_test(struct net_device *netdev, u64 *data) 2596 { 2597 struct i40e_netdev_priv *np = netdev_priv(netdev); 2598 struct i40e_pf *pf = np->vsi->back; 2599 bool link_up = false; 2600 int status; 2601 2602 netif_info(pf, hw, netdev, "link test\n"); 2603 status = i40e_get_link_status(&pf->hw, &link_up); 2604 if (status) { 2605 netif_err(pf, drv, netdev, "link query timed out, please retry test\n"); 2606 *data = 1; 2607 return *data; 2608 } 2609 2610 if (link_up) 2611 *data = 0; 2612 else 2613 *data = 1; 2614 2615 return *data; 2616 } 2617 2618 static u64 i40e_reg_test(struct net_device *netdev, u64 *data) 2619 { 2620 struct i40e_netdev_priv *np = netdev_priv(netdev); 2621 struct i40e_pf *pf = np->vsi->back; 2622 2623 netif_info(pf, hw, netdev, "register test\n"); 2624 *data = i40e_diag_reg_test(&pf->hw); 2625 2626 return *data; 2627 } 2628 2629 static u64 i40e_eeprom_test(struct net_device *netdev, u64 *data) 2630 { 2631 struct i40e_netdev_priv *np = netdev_priv(netdev); 2632 struct i40e_pf *pf = np->vsi->back; 2633 2634 netif_info(pf, hw, netdev, "eeprom test\n"); 2635 *data = i40e_diag_eeprom_test(&pf->hw); 2636 2637 /* forcebly clear the NVM Update state machine */ 2638 pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT; 2639 2640 return *data; 2641 } 2642 2643 static u64 i40e_intr_test(struct net_device *netdev, u64 *data) 2644 { 2645 struct i40e_netdev_priv *np = netdev_priv(netdev); 2646 struct i40e_pf *pf = np->vsi->back; 2647 u16 swc_old = pf->sw_int_count; 2648 2649 netif_info(pf, hw, netdev, "interrupt test\n"); 2650 wr32(&pf->hw, I40E_PFINT_DYN_CTL0, 2651 (I40E_PFINT_DYN_CTL0_INTENA_MASK | 2652 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK | 2653 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK | 2654 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK | 2655 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK)); 2656 usleep_range(1000, 2000); 2657 *data = (swc_old == pf->sw_int_count); 2658 2659 return *data; 2660 } 2661 2662 static inline bool i40e_active_vfs(struct i40e_pf *pf) 2663 { 2664 struct i40e_vf *vfs = pf->vf; 2665 int i; 2666 2667 for (i = 0; i < pf->num_alloc_vfs; i++) 2668 if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states)) 2669 return true; 2670 return false; 2671 } 2672 2673 static inline bool i40e_active_vmdqs(struct i40e_pf *pf) 2674 { 2675 return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2); 2676 } 2677 2678 static void i40e_diag_test(struct net_device *netdev, 2679 struct ethtool_test *eth_test, u64 *data) 2680 { 2681 struct i40e_netdev_priv *np = netdev_priv(netdev); 2682 bool if_running = netif_running(netdev); 2683 struct i40e_pf *pf = np->vsi->back; 2684 2685 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 2686 /* Offline tests */ 2687 netif_info(pf, drv, netdev, "offline testing starting\n"); 2688 2689 set_bit(__I40E_TESTING, pf->state); 2690 2691 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 2692 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) { 2693 dev_warn(&pf->pdev->dev, 2694 "Cannot start offline testing when PF is in reset state.\n"); 2695 goto skip_ol_tests; 2696 } 2697 2698 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) { 2699 dev_warn(&pf->pdev->dev, 2700 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n"); 2701 goto skip_ol_tests; 2702 } 2703 2704 /* If the device is online then take it offline */ 2705 if (if_running) 2706 /* indicate we're in test mode */ 2707 i40e_close(netdev); 2708 else 2709 /* This reset does not affect link - if it is 2710 * changed to a type of reset that does affect 2711 * link then the following link test would have 2712 * to be moved to before the reset 2713 */ 2714 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 2715 2716 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 2717 eth_test->flags |= ETH_TEST_FL_FAILED; 2718 2719 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM])) 2720 eth_test->flags |= ETH_TEST_FL_FAILED; 2721 2722 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR])) 2723 eth_test->flags |= ETH_TEST_FL_FAILED; 2724 2725 /* run reg test last, a reset is required after it */ 2726 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG])) 2727 eth_test->flags |= ETH_TEST_FL_FAILED; 2728 2729 clear_bit(__I40E_TESTING, pf->state); 2730 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 2731 2732 if (if_running) 2733 i40e_open(netdev); 2734 } else { 2735 /* Online tests */ 2736 netif_info(pf, drv, netdev, "online testing starting\n"); 2737 2738 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 2739 eth_test->flags |= ETH_TEST_FL_FAILED; 2740 2741 /* Offline only tests, not run in online; pass by default */ 2742 data[I40E_ETH_TEST_REG] = 0; 2743 data[I40E_ETH_TEST_EEPROM] = 0; 2744 data[I40E_ETH_TEST_INTR] = 0; 2745 } 2746 2747 netif_info(pf, drv, netdev, "testing finished\n"); 2748 return; 2749 2750 skip_ol_tests: 2751 data[I40E_ETH_TEST_REG] = 1; 2752 data[I40E_ETH_TEST_EEPROM] = 1; 2753 data[I40E_ETH_TEST_INTR] = 1; 2754 data[I40E_ETH_TEST_LINK] = 1; 2755 eth_test->flags |= ETH_TEST_FL_FAILED; 2756 clear_bit(__I40E_TESTING, pf->state); 2757 netif_info(pf, drv, netdev, "testing failed\n"); 2758 } 2759 2760 static void i40e_get_wol(struct net_device *netdev, 2761 struct ethtool_wolinfo *wol) 2762 { 2763 struct i40e_netdev_priv *np = netdev_priv(netdev); 2764 struct i40e_pf *pf = np->vsi->back; 2765 struct i40e_hw *hw = &pf->hw; 2766 u16 wol_nvm_bits; 2767 2768 /* NVM bit on means WoL disabled for the port */ 2769 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 2770 if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) { 2771 wol->supported = 0; 2772 wol->wolopts = 0; 2773 } else { 2774 wol->supported = WAKE_MAGIC; 2775 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0); 2776 } 2777 } 2778 2779 /** 2780 * i40e_set_wol - set the WakeOnLAN configuration 2781 * @netdev: the netdev in question 2782 * @wol: the ethtool WoL setting data 2783 **/ 2784 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 2785 { 2786 struct i40e_netdev_priv *np = netdev_priv(netdev); 2787 struct i40e_pf *pf = np->vsi->back; 2788 struct i40e_vsi *vsi = np->vsi; 2789 struct i40e_hw *hw = &pf->hw; 2790 u16 wol_nvm_bits; 2791 2792 /* WoL not supported if this isn't the controlling PF on the port */ 2793 if (hw->partition_id != 1) { 2794 i40e_partition_setting_complaint(pf); 2795 return -EOPNOTSUPP; 2796 } 2797 2798 if (vsi != pf->vsi[pf->lan_vsi]) 2799 return -EOPNOTSUPP; 2800 2801 /* NVM bit on means WoL disabled for the port */ 2802 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 2803 if (BIT(hw->port) & wol_nvm_bits) 2804 return -EOPNOTSUPP; 2805 2806 /* only magic packet is supported */ 2807 if (wol->wolopts & ~WAKE_MAGIC) 2808 return -EOPNOTSUPP; 2809 2810 /* is this a new value? */ 2811 if (pf->wol_en != !!wol->wolopts) { 2812 pf->wol_en = !!wol->wolopts; 2813 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en); 2814 } 2815 2816 return 0; 2817 } 2818 2819 static int i40e_set_phys_id(struct net_device *netdev, 2820 enum ethtool_phys_id_state state) 2821 { 2822 struct i40e_netdev_priv *np = netdev_priv(netdev); 2823 struct i40e_pf *pf = np->vsi->back; 2824 struct i40e_hw *hw = &pf->hw; 2825 int blink_freq = 2; 2826 u16 temp_status; 2827 int ret = 0; 2828 2829 switch (state) { 2830 case ETHTOOL_ID_ACTIVE: 2831 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps)) { 2832 pf->led_status = i40e_led_get(hw); 2833 } else { 2834 if (!test_bit(I40E_HW_CAP_AQ_PHY_ACCESS, hw->caps)) 2835 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL, 2836 NULL); 2837 ret = i40e_led_get_phy(hw, &temp_status, 2838 &pf->phy_led_val); 2839 pf->led_status = temp_status; 2840 } 2841 return blink_freq; 2842 case ETHTOOL_ID_ON: 2843 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps)) 2844 i40e_led_set(hw, 0xf, false); 2845 else 2846 ret = i40e_led_set_phy(hw, true, pf->led_status, 0); 2847 break; 2848 case ETHTOOL_ID_OFF: 2849 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps)) 2850 i40e_led_set(hw, 0x0, false); 2851 else 2852 ret = i40e_led_set_phy(hw, false, pf->led_status, 0); 2853 break; 2854 case ETHTOOL_ID_INACTIVE: 2855 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps)) { 2856 i40e_led_set(hw, pf->led_status, false); 2857 } else { 2858 ret = i40e_led_set_phy(hw, false, pf->led_status, 2859 (pf->phy_led_val | 2860 I40E_PHY_LED_MODE_ORIG)); 2861 if (!test_bit(I40E_HW_CAP_AQ_PHY_ACCESS, hw->caps)) 2862 i40e_aq_set_phy_debug(hw, 0, NULL); 2863 } 2864 break; 2865 default: 2866 break; 2867 } 2868 if (ret) 2869 return -ENOENT; 2870 else 2871 return 0; 2872 } 2873 2874 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt 2875 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also 2876 * 125us (8000 interrupts per second) == ITR(62) 2877 */ 2878 2879 /** 2880 * __i40e_get_coalesce - get per-queue coalesce settings 2881 * @netdev: the netdev to check 2882 * @ec: ethtool coalesce data structure 2883 * @queue: which queue to pick 2884 * 2885 * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs 2886 * are per queue. If queue is <0 then we default to queue 0 as the 2887 * representative value. 2888 **/ 2889 static int __i40e_get_coalesce(struct net_device *netdev, 2890 struct ethtool_coalesce *ec, 2891 int queue) 2892 { 2893 struct i40e_netdev_priv *np = netdev_priv(netdev); 2894 struct i40e_ring *rx_ring, *tx_ring; 2895 struct i40e_vsi *vsi = np->vsi; 2896 2897 ec->tx_max_coalesced_frames_irq = vsi->work_limit; 2898 ec->rx_max_coalesced_frames_irq = vsi->work_limit; 2899 2900 /* rx and tx usecs has per queue value. If user doesn't specify the 2901 * queue, return queue 0's value to represent. 2902 */ 2903 if (queue < 0) 2904 queue = 0; 2905 else if (queue >= vsi->num_queue_pairs) 2906 return -EINVAL; 2907 2908 rx_ring = vsi->rx_rings[queue]; 2909 tx_ring = vsi->tx_rings[queue]; 2910 2911 if (ITR_IS_DYNAMIC(rx_ring->itr_setting)) 2912 ec->use_adaptive_rx_coalesce = 1; 2913 2914 if (ITR_IS_DYNAMIC(tx_ring->itr_setting)) 2915 ec->use_adaptive_tx_coalesce = 1; 2916 2917 ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC; 2918 ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC; 2919 2920 /* we use the _usecs_high to store/set the interrupt rate limit 2921 * that the hardware supports, that almost but not quite 2922 * fits the original intent of the ethtool variable, 2923 * the rx_coalesce_usecs_high limits total interrupts 2924 * per second from both tx/rx sources. 2925 */ 2926 ec->rx_coalesce_usecs_high = vsi->int_rate_limit; 2927 ec->tx_coalesce_usecs_high = vsi->int_rate_limit; 2928 2929 return 0; 2930 } 2931 2932 /** 2933 * i40e_get_coalesce - get a netdev's coalesce settings 2934 * @netdev: the netdev to check 2935 * @ec: ethtool coalesce data structure 2936 * @kernel_coal: ethtool CQE mode setting structure 2937 * @extack: extack for reporting error messages 2938 * 2939 * Gets the coalesce settings for a particular netdev. Note that if user has 2940 * modified per-queue settings, this only guarantees to represent queue 0. See 2941 * __i40e_get_coalesce for more details. 2942 **/ 2943 static int i40e_get_coalesce(struct net_device *netdev, 2944 struct ethtool_coalesce *ec, 2945 struct kernel_ethtool_coalesce *kernel_coal, 2946 struct netlink_ext_ack *extack) 2947 { 2948 return __i40e_get_coalesce(netdev, ec, -1); 2949 } 2950 2951 /** 2952 * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue 2953 * @netdev: netdev structure 2954 * @ec: ethtool's coalesce settings 2955 * @queue: the particular queue to read 2956 * 2957 * Will read a specific queue's coalesce settings 2958 **/ 2959 static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue, 2960 struct ethtool_coalesce *ec) 2961 { 2962 return __i40e_get_coalesce(netdev, ec, queue); 2963 } 2964 2965 /** 2966 * i40e_set_itr_per_queue - set ITR values for specific queue 2967 * @vsi: the VSI to set values for 2968 * @ec: coalesce settings from ethtool 2969 * @queue: the queue to modify 2970 * 2971 * Change the ITR settings for a specific queue. 2972 **/ 2973 static void i40e_set_itr_per_queue(struct i40e_vsi *vsi, 2974 struct ethtool_coalesce *ec, 2975 int queue) 2976 { 2977 struct i40e_ring *rx_ring = vsi->rx_rings[queue]; 2978 struct i40e_ring *tx_ring = vsi->tx_rings[queue]; 2979 struct i40e_pf *pf = vsi->back; 2980 struct i40e_hw *hw = &pf->hw; 2981 struct i40e_q_vector *q_vector; 2982 u16 intrl; 2983 2984 intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit); 2985 2986 rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs); 2987 tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs); 2988 2989 if (ec->use_adaptive_rx_coalesce) 2990 rx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2991 else 2992 rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2993 2994 if (ec->use_adaptive_tx_coalesce) 2995 tx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2996 else 2997 tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2998 2999 q_vector = rx_ring->q_vector; 3000 q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting); 3001 3002 q_vector = tx_ring->q_vector; 3003 q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting); 3004 3005 /* The interrupt handler itself will take care of programming 3006 * the Tx and Rx ITR values based on the values we have entered 3007 * into the q_vector, no need to write the values now. 3008 */ 3009 3010 wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl); 3011 i40e_flush(hw); 3012 } 3013 3014 /** 3015 * __i40e_set_coalesce - set coalesce settings for particular queue 3016 * @netdev: the netdev to change 3017 * @ec: ethtool coalesce settings 3018 * @queue: the queue to change 3019 * 3020 * Sets the coalesce settings for a particular queue. 3021 **/ 3022 static int __i40e_set_coalesce(struct net_device *netdev, 3023 struct ethtool_coalesce *ec, 3024 int queue) 3025 { 3026 struct i40e_netdev_priv *np = netdev_priv(netdev); 3027 u16 intrl_reg, cur_rx_itr, cur_tx_itr; 3028 struct i40e_vsi *vsi = np->vsi; 3029 struct i40e_pf *pf = vsi->back; 3030 int i; 3031 3032 if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq) 3033 vsi->work_limit = ec->tx_max_coalesced_frames_irq; 3034 3035 if (queue < 0) { 3036 cur_rx_itr = vsi->rx_rings[0]->itr_setting; 3037 cur_tx_itr = vsi->tx_rings[0]->itr_setting; 3038 } else if (queue < vsi->num_queue_pairs) { 3039 cur_rx_itr = vsi->rx_rings[queue]->itr_setting; 3040 cur_tx_itr = vsi->tx_rings[queue]->itr_setting; 3041 } else { 3042 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n", 3043 vsi->num_queue_pairs - 1); 3044 return -EINVAL; 3045 } 3046 3047 cur_tx_itr &= ~I40E_ITR_DYNAMIC; 3048 cur_rx_itr &= ~I40E_ITR_DYNAMIC; 3049 3050 /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */ 3051 if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) { 3052 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n"); 3053 return -EINVAL; 3054 } 3055 3056 if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) { 3057 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n", 3058 INTRL_REG_TO_USEC(I40E_MAX_INTRL)); 3059 return -EINVAL; 3060 } 3061 3062 if (ec->rx_coalesce_usecs != cur_rx_itr && 3063 ec->use_adaptive_rx_coalesce) { 3064 netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n"); 3065 return -EINVAL; 3066 } 3067 3068 if (ec->rx_coalesce_usecs > I40E_MAX_ITR) { 3069 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n"); 3070 return -EINVAL; 3071 } 3072 3073 if (ec->tx_coalesce_usecs != cur_tx_itr && 3074 ec->use_adaptive_tx_coalesce) { 3075 netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n"); 3076 return -EINVAL; 3077 } 3078 3079 if (ec->tx_coalesce_usecs > I40E_MAX_ITR) { 3080 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n"); 3081 return -EINVAL; 3082 } 3083 3084 if (ec->use_adaptive_rx_coalesce && !cur_rx_itr) 3085 ec->rx_coalesce_usecs = I40E_MIN_ITR; 3086 3087 if (ec->use_adaptive_tx_coalesce && !cur_tx_itr) 3088 ec->tx_coalesce_usecs = I40E_MIN_ITR; 3089 3090 intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high); 3091 vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg); 3092 if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) { 3093 netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n", 3094 vsi->int_rate_limit); 3095 } 3096 3097 /* rx and tx usecs has per queue value. If user doesn't specify the 3098 * queue, apply to all queues. 3099 */ 3100 if (queue < 0) { 3101 for (i = 0; i < vsi->num_queue_pairs; i++) 3102 i40e_set_itr_per_queue(vsi, ec, i); 3103 } else { 3104 i40e_set_itr_per_queue(vsi, ec, queue); 3105 } 3106 3107 return 0; 3108 } 3109 3110 /** 3111 * i40e_set_coalesce - set coalesce settings for every queue on the netdev 3112 * @netdev: the netdev to change 3113 * @ec: ethtool coalesce settings 3114 * @kernel_coal: ethtool CQE mode setting structure 3115 * @extack: extack for reporting error messages 3116 * 3117 * This will set each queue to the same coalesce settings. 3118 **/ 3119 static int i40e_set_coalesce(struct net_device *netdev, 3120 struct ethtool_coalesce *ec, 3121 struct kernel_ethtool_coalesce *kernel_coal, 3122 struct netlink_ext_ack *extack) 3123 { 3124 return __i40e_set_coalesce(netdev, ec, -1); 3125 } 3126 3127 /** 3128 * i40e_set_per_queue_coalesce - set specific queue's coalesce settings 3129 * @netdev: the netdev to change 3130 * @ec: ethtool's coalesce settings 3131 * @queue: the queue to change 3132 * 3133 * Sets the specified queue's coalesce settings. 3134 **/ 3135 static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue, 3136 struct ethtool_coalesce *ec) 3137 { 3138 return __i40e_set_coalesce(netdev, ec, queue); 3139 } 3140 3141 /** 3142 * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type 3143 * @pf: pointer to the physical function struct 3144 * @cmd: ethtool rxnfc command 3145 * 3146 * Returns Success if the flow is supported, else Invalid Input. 3147 **/ 3148 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd) 3149 { 3150 struct i40e_hw *hw = &pf->hw; 3151 u8 flow_pctype = 0; 3152 u64 i_set = 0; 3153 3154 cmd->data = 0; 3155 3156 switch (cmd->flow_type) { 3157 case TCP_V4_FLOW: 3158 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3159 break; 3160 case UDP_V4_FLOW: 3161 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3162 break; 3163 case TCP_V6_FLOW: 3164 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3165 break; 3166 case UDP_V6_FLOW: 3167 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3168 break; 3169 case SCTP_V4_FLOW: 3170 case AH_ESP_V4_FLOW: 3171 case AH_V4_FLOW: 3172 case ESP_V4_FLOW: 3173 case IPV4_FLOW: 3174 case SCTP_V6_FLOW: 3175 case AH_ESP_V6_FLOW: 3176 case AH_V6_FLOW: 3177 case ESP_V6_FLOW: 3178 case IPV6_FLOW: 3179 /* Default is src/dest for IP, no matter the L4 hashing */ 3180 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 3181 break; 3182 default: 3183 return -EINVAL; 3184 } 3185 3186 /* Read flow based hash input set register */ 3187 if (flow_pctype) { 3188 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, 3189 flow_pctype)) | 3190 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, 3191 flow_pctype)) << 32); 3192 } 3193 3194 /* Process bits of hash input set */ 3195 if (i_set) { 3196 if (i_set & I40E_L4_SRC_MASK) 3197 cmd->data |= RXH_L4_B_0_1; 3198 if (i_set & I40E_L4_DST_MASK) 3199 cmd->data |= RXH_L4_B_2_3; 3200 3201 if (cmd->flow_type == TCP_V4_FLOW || 3202 cmd->flow_type == UDP_V4_FLOW) { 3203 if (hw->mac.type == I40E_MAC_X722) { 3204 if (i_set & I40E_X722_L3_SRC_MASK) 3205 cmd->data |= RXH_IP_SRC; 3206 if (i_set & I40E_X722_L3_DST_MASK) 3207 cmd->data |= RXH_IP_DST; 3208 } else { 3209 if (i_set & I40E_L3_SRC_MASK) 3210 cmd->data |= RXH_IP_SRC; 3211 if (i_set & I40E_L3_DST_MASK) 3212 cmd->data |= RXH_IP_DST; 3213 } 3214 } else if (cmd->flow_type == TCP_V6_FLOW || 3215 cmd->flow_type == UDP_V6_FLOW) { 3216 if (i_set & I40E_L3_V6_SRC_MASK) 3217 cmd->data |= RXH_IP_SRC; 3218 if (i_set & I40E_L3_V6_DST_MASK) 3219 cmd->data |= RXH_IP_DST; 3220 } 3221 } 3222 3223 return 0; 3224 } 3225 3226 /** 3227 * i40e_check_mask - Check whether a mask field is set 3228 * @mask: the full mask value 3229 * @field: mask of the field to check 3230 * 3231 * If the given mask is fully set, return positive value. If the mask for the 3232 * field is fully unset, return zero. Otherwise return a negative error code. 3233 **/ 3234 static int i40e_check_mask(u64 mask, u64 field) 3235 { 3236 u64 value = mask & field; 3237 3238 if (value == field) 3239 return 1; 3240 else if (!value) 3241 return 0; 3242 else 3243 return -1; 3244 } 3245 3246 /** 3247 * i40e_parse_rx_flow_user_data - Deconstruct user-defined data 3248 * @fsp: pointer to rx flow specification 3249 * @data: pointer to userdef data structure for storage 3250 * 3251 * Read the user-defined data and deconstruct the value into a structure. No 3252 * other code should read the user-defined data, so as to ensure that every 3253 * place consistently reads the value correctly. 3254 * 3255 * The user-defined field is a 64bit Big Endian format value, which we 3256 * deconstruct by reading bits or bit fields from it. Single bit flags shall 3257 * be defined starting from the highest bits, while small bit field values 3258 * shall be defined starting from the lowest bits. 3259 * 3260 * Returns 0 if the data is valid, and non-zero if the userdef data is invalid 3261 * and the filter should be rejected. The data structure will always be 3262 * modified even if FLOW_EXT is not set. 3263 * 3264 **/ 3265 static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 3266 struct i40e_rx_flow_userdef *data) 3267 { 3268 u64 value, mask; 3269 int valid; 3270 3271 /* Zero memory first so it's always consistent. */ 3272 memset(data, 0, sizeof(*data)); 3273 3274 if (!(fsp->flow_type & FLOW_EXT)) 3275 return 0; 3276 3277 value = be64_to_cpu(*((__be64 *)fsp->h_ext.data)); 3278 mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data)); 3279 3280 #define I40E_USERDEF_FLEX_WORD GENMASK_ULL(15, 0) 3281 #define I40E_USERDEF_FLEX_OFFSET GENMASK_ULL(31, 16) 3282 #define I40E_USERDEF_FLEX_FILTER GENMASK_ULL(31, 0) 3283 3284 valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER); 3285 if (valid < 0) { 3286 return -EINVAL; 3287 } else if (valid) { 3288 data->flex_word = value & I40E_USERDEF_FLEX_WORD; 3289 data->flex_offset = 3290 (value & I40E_USERDEF_FLEX_OFFSET) >> 16; 3291 data->flex_filter = true; 3292 } 3293 3294 return 0; 3295 } 3296 3297 /** 3298 * i40e_fill_rx_flow_user_data - Fill in user-defined data field 3299 * @fsp: pointer to rx_flow specification 3300 * @data: pointer to return userdef data 3301 * 3302 * Reads the userdef data structure and properly fills in the user defined 3303 * fields of the rx_flow_spec. 3304 **/ 3305 static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 3306 struct i40e_rx_flow_userdef *data) 3307 { 3308 u64 value = 0, mask = 0; 3309 3310 if (data->flex_filter) { 3311 value |= data->flex_word; 3312 value |= (u64)data->flex_offset << 16; 3313 mask |= I40E_USERDEF_FLEX_FILTER; 3314 } 3315 3316 if (value || mask) 3317 fsp->flow_type |= FLOW_EXT; 3318 3319 *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value); 3320 *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask); 3321 } 3322 3323 /** 3324 * i40e_get_ethtool_fdir_all - Populates the rule count of a command 3325 * @pf: Pointer to the physical function struct 3326 * @cmd: The command to get or set Rx flow classification rules 3327 * @rule_locs: Array of used rule locations 3328 * 3329 * This function populates both the total and actual rule count of 3330 * the ethtool flow classification command 3331 * 3332 * Returns 0 on success or -EMSGSIZE if entry not found 3333 **/ 3334 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf, 3335 struct ethtool_rxnfc *cmd, 3336 u32 *rule_locs) 3337 { 3338 struct i40e_fdir_filter *rule; 3339 struct hlist_node *node2; 3340 int cnt = 0; 3341 3342 /* report total rule count */ 3343 cmd->data = i40e_get_fd_cnt_all(pf); 3344 3345 hlist_for_each_entry_safe(rule, node2, 3346 &pf->fdir_filter_list, fdir_node) { 3347 if (cnt == cmd->rule_cnt) 3348 return -EMSGSIZE; 3349 3350 rule_locs[cnt] = rule->fd_id; 3351 cnt++; 3352 } 3353 3354 cmd->rule_cnt = cnt; 3355 3356 return 0; 3357 } 3358 3359 /** 3360 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow 3361 * @pf: Pointer to the physical function struct 3362 * @cmd: The command to get or set Rx flow classification rules 3363 * 3364 * This function looks up a filter based on the Rx flow classification 3365 * command and fills the flow spec info for it if found 3366 * 3367 * Returns 0 on success or -EINVAL if filter not found 3368 **/ 3369 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf, 3370 struct ethtool_rxnfc *cmd) 3371 { 3372 struct ethtool_rx_flow_spec *fsp = 3373 (struct ethtool_rx_flow_spec *)&cmd->fs; 3374 struct i40e_rx_flow_userdef userdef = {0}; 3375 struct i40e_fdir_filter *rule = NULL; 3376 struct hlist_node *node2; 3377 u64 input_set; 3378 u16 index; 3379 3380 hlist_for_each_entry_safe(rule, node2, 3381 &pf->fdir_filter_list, fdir_node) { 3382 if (fsp->location <= rule->fd_id) 3383 break; 3384 } 3385 3386 if (!rule || fsp->location != rule->fd_id) 3387 return -EINVAL; 3388 3389 fsp->flow_type = rule->flow_type; 3390 if (fsp->flow_type == IP_USER_FLOW) { 3391 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4; 3392 fsp->h_u.usr_ip4_spec.proto = 0; 3393 fsp->m_u.usr_ip4_spec.proto = 0; 3394 } 3395 3396 if (fsp->flow_type == IPV6_USER_FLOW || 3397 fsp->flow_type == UDP_V6_FLOW || 3398 fsp->flow_type == TCP_V6_FLOW || 3399 fsp->flow_type == SCTP_V6_FLOW) { 3400 /* Reverse the src and dest notion, since the HW views them 3401 * from Tx perspective where as the user expects it from 3402 * Rx filter view. 3403 */ 3404 fsp->h_u.tcp_ip6_spec.psrc = rule->dst_port; 3405 fsp->h_u.tcp_ip6_spec.pdst = rule->src_port; 3406 memcpy(fsp->h_u.tcp_ip6_spec.ip6dst, rule->src_ip6, 3407 sizeof(__be32) * 4); 3408 memcpy(fsp->h_u.tcp_ip6_spec.ip6src, rule->dst_ip6, 3409 sizeof(__be32) * 4); 3410 } else { 3411 /* Reverse the src and dest notion, since the HW views them 3412 * from Tx perspective where as the user expects it from 3413 * Rx filter view. 3414 */ 3415 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port; 3416 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port; 3417 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip; 3418 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip; 3419 } 3420 3421 switch (rule->flow_type) { 3422 case SCTP_V4_FLOW: 3423 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP; 3424 break; 3425 case TCP_V4_FLOW: 3426 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3427 break; 3428 case UDP_V4_FLOW: 3429 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3430 break; 3431 case SCTP_V6_FLOW: 3432 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP; 3433 break; 3434 case TCP_V6_FLOW: 3435 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3436 break; 3437 case UDP_V6_FLOW: 3438 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3439 break; 3440 case IP_USER_FLOW: 3441 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER; 3442 break; 3443 case IPV6_USER_FLOW: 3444 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER; 3445 break; 3446 default: 3447 /* If we have stored a filter with a flow type not listed here 3448 * it is almost certainly a driver bug. WARN(), and then 3449 * assign the input_set as if all fields are enabled to avoid 3450 * reading unassigned memory. 3451 */ 3452 WARN(1, "Missing input set index for flow_type %d\n", 3453 rule->flow_type); 3454 input_set = 0xFFFFFFFFFFFFFFFFULL; 3455 goto no_input_set; 3456 } 3457 3458 input_set = i40e_read_fd_input_set(pf, index); 3459 3460 no_input_set: 3461 if (input_set & I40E_L3_V6_SRC_MASK) { 3462 fsp->m_u.tcp_ip6_spec.ip6src[0] = htonl(0xFFFFFFFF); 3463 fsp->m_u.tcp_ip6_spec.ip6src[1] = htonl(0xFFFFFFFF); 3464 fsp->m_u.tcp_ip6_spec.ip6src[2] = htonl(0xFFFFFFFF); 3465 fsp->m_u.tcp_ip6_spec.ip6src[3] = htonl(0xFFFFFFFF); 3466 } 3467 3468 if (input_set & I40E_L3_V6_DST_MASK) { 3469 fsp->m_u.tcp_ip6_spec.ip6dst[0] = htonl(0xFFFFFFFF); 3470 fsp->m_u.tcp_ip6_spec.ip6dst[1] = htonl(0xFFFFFFFF); 3471 fsp->m_u.tcp_ip6_spec.ip6dst[2] = htonl(0xFFFFFFFF); 3472 fsp->m_u.tcp_ip6_spec.ip6dst[3] = htonl(0xFFFFFFFF); 3473 } 3474 3475 if (input_set & I40E_L3_SRC_MASK) 3476 fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF); 3477 3478 if (input_set & I40E_L3_DST_MASK) 3479 fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF); 3480 3481 if (input_set & I40E_L4_SRC_MASK) 3482 fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF); 3483 3484 if (input_set & I40E_L4_DST_MASK) 3485 fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF); 3486 3487 if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET) 3488 fsp->ring_cookie = RX_CLS_FLOW_DISC; 3489 else 3490 fsp->ring_cookie = rule->q_index; 3491 3492 if (rule->vlan_tag) { 3493 fsp->h_ext.vlan_etype = rule->vlan_etype; 3494 fsp->m_ext.vlan_etype = htons(0xFFFF); 3495 fsp->h_ext.vlan_tci = rule->vlan_tag; 3496 fsp->m_ext.vlan_tci = htons(0xFFFF); 3497 fsp->flow_type |= FLOW_EXT; 3498 } 3499 3500 if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) { 3501 struct i40e_vsi *vsi; 3502 3503 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi); 3504 if (vsi && vsi->type == I40E_VSI_SRIOV) { 3505 /* VFs are zero-indexed by the driver, but ethtool 3506 * expects them to be one-indexed, so add one here 3507 */ 3508 u64 ring_vf = vsi->vf_id + 1; 3509 3510 ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF; 3511 fsp->ring_cookie |= ring_vf; 3512 } 3513 } 3514 3515 if (rule->flex_filter) { 3516 userdef.flex_filter = true; 3517 userdef.flex_word = be16_to_cpu(rule->flex_word); 3518 userdef.flex_offset = rule->flex_offset; 3519 } 3520 3521 i40e_fill_rx_flow_user_data(fsp, &userdef); 3522 3523 return 0; 3524 } 3525 3526 /** 3527 * i40e_get_rxnfc - command to get RX flow classification rules 3528 * @netdev: network interface device structure 3529 * @cmd: ethtool rxnfc command 3530 * @rule_locs: pointer to store rule data 3531 * 3532 * Returns Success if the command is supported. 3533 **/ 3534 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd, 3535 u32 *rule_locs) 3536 { 3537 struct i40e_netdev_priv *np = netdev_priv(netdev); 3538 struct i40e_vsi *vsi = np->vsi; 3539 struct i40e_pf *pf = vsi->back; 3540 int ret = -EOPNOTSUPP; 3541 3542 switch (cmd->cmd) { 3543 case ETHTOOL_GRXRINGS: 3544 cmd->data = vsi->rss_size; 3545 ret = 0; 3546 break; 3547 case ETHTOOL_GRXFH: 3548 ret = i40e_get_rss_hash_opts(pf, cmd); 3549 break; 3550 case ETHTOOL_GRXCLSRLCNT: 3551 cmd->rule_cnt = pf->fdir_pf_active_filters; 3552 /* report total rule count */ 3553 cmd->data = i40e_get_fd_cnt_all(pf); 3554 ret = 0; 3555 break; 3556 case ETHTOOL_GRXCLSRULE: 3557 ret = i40e_get_ethtool_fdir_entry(pf, cmd); 3558 break; 3559 case ETHTOOL_GRXCLSRLALL: 3560 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs); 3561 break; 3562 default: 3563 break; 3564 } 3565 3566 return ret; 3567 } 3568 3569 /** 3570 * i40e_get_rss_hash_bits - Read RSS Hash bits from register 3571 * @hw: hw structure 3572 * @nfc: pointer to user request 3573 * @i_setc: bits currently set 3574 * 3575 * Returns value of bits to be set per user request 3576 **/ 3577 static u64 i40e_get_rss_hash_bits(struct i40e_hw *hw, 3578 struct ethtool_rxnfc *nfc, 3579 u64 i_setc) 3580 { 3581 u64 i_set = i_setc; 3582 u64 src_l3 = 0, dst_l3 = 0; 3583 3584 if (nfc->data & RXH_L4_B_0_1) 3585 i_set |= I40E_L4_SRC_MASK; 3586 else 3587 i_set &= ~I40E_L4_SRC_MASK; 3588 if (nfc->data & RXH_L4_B_2_3) 3589 i_set |= I40E_L4_DST_MASK; 3590 else 3591 i_set &= ~I40E_L4_DST_MASK; 3592 3593 if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) { 3594 src_l3 = I40E_L3_V6_SRC_MASK; 3595 dst_l3 = I40E_L3_V6_DST_MASK; 3596 } else if (nfc->flow_type == TCP_V4_FLOW || 3597 nfc->flow_type == UDP_V4_FLOW) { 3598 if (hw->mac.type == I40E_MAC_X722) { 3599 src_l3 = I40E_X722_L3_SRC_MASK; 3600 dst_l3 = I40E_X722_L3_DST_MASK; 3601 } else { 3602 src_l3 = I40E_L3_SRC_MASK; 3603 dst_l3 = I40E_L3_DST_MASK; 3604 } 3605 } else { 3606 /* Any other flow type are not supported here */ 3607 return i_set; 3608 } 3609 3610 if (nfc->data & RXH_IP_SRC) 3611 i_set |= src_l3; 3612 else 3613 i_set &= ~src_l3; 3614 if (nfc->data & RXH_IP_DST) 3615 i_set |= dst_l3; 3616 else 3617 i_set &= ~dst_l3; 3618 3619 return i_set; 3620 } 3621 3622 #define FLOW_PCTYPES_SIZE 64 3623 /** 3624 * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash 3625 * @pf: pointer to the physical function struct 3626 * @nfc: ethtool rxnfc command 3627 * 3628 * Returns Success if the flow input set is supported. 3629 **/ 3630 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc) 3631 { 3632 struct i40e_hw *hw = &pf->hw; 3633 u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) | 3634 ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32); 3635 DECLARE_BITMAP(flow_pctypes, FLOW_PCTYPES_SIZE); 3636 u64 i_set, i_setc; 3637 3638 bitmap_zero(flow_pctypes, FLOW_PCTYPES_SIZE); 3639 3640 if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) { 3641 dev_err(&pf->pdev->dev, 3642 "Change of RSS hash input set is not supported when MFP mode is enabled\n"); 3643 return -EOPNOTSUPP; 3644 } 3645 3646 /* RSS does not support anything other than hashing 3647 * to queues on src and dst IPs and ports 3648 */ 3649 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 3650 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 3651 return -EINVAL; 3652 3653 switch (nfc->flow_type) { 3654 case TCP_V4_FLOW: 3655 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_TCP, flow_pctypes); 3656 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, 3657 pf->hw.caps)) 3658 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK, 3659 flow_pctypes); 3660 break; 3661 case TCP_V6_FLOW: 3662 set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_TCP, flow_pctypes); 3663 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, 3664 pf->hw.caps)) 3665 set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK, 3666 flow_pctypes); 3667 break; 3668 case UDP_V4_FLOW: 3669 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_UDP, flow_pctypes); 3670 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, 3671 pf->hw.caps)) { 3672 set_bit(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP, 3673 flow_pctypes); 3674 set_bit(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP, 3675 flow_pctypes); 3676 } 3677 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 3678 break; 3679 case UDP_V6_FLOW: 3680 set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_UDP, flow_pctypes); 3681 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, 3682 pf->hw.caps)) { 3683 set_bit(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP, 3684 flow_pctypes); 3685 set_bit(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP, 3686 flow_pctypes); 3687 } 3688 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 3689 break; 3690 case AH_ESP_V4_FLOW: 3691 case AH_V4_FLOW: 3692 case ESP_V4_FLOW: 3693 case SCTP_V4_FLOW: 3694 if ((nfc->data & RXH_L4_B_0_1) || 3695 (nfc->data & RXH_L4_B_2_3)) 3696 return -EINVAL; 3697 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER); 3698 break; 3699 case AH_ESP_V6_FLOW: 3700 case AH_V6_FLOW: 3701 case ESP_V6_FLOW: 3702 case SCTP_V6_FLOW: 3703 if ((nfc->data & RXH_L4_B_0_1) || 3704 (nfc->data & RXH_L4_B_2_3)) 3705 return -EINVAL; 3706 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER); 3707 break; 3708 case IPV4_FLOW: 3709 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) | 3710 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 3711 break; 3712 case IPV6_FLOW: 3713 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) | 3714 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 3715 break; 3716 default: 3717 return -EINVAL; 3718 } 3719 3720 if (bitmap_weight(flow_pctypes, FLOW_PCTYPES_SIZE)) { 3721 u8 flow_id; 3722 3723 for_each_set_bit(flow_id, flow_pctypes, FLOW_PCTYPES_SIZE) { 3724 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id)) | 3725 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id)) << 32); 3726 i_set = i40e_get_rss_hash_bits(&pf->hw, nfc, i_setc); 3727 3728 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id), 3729 (u32)i_set); 3730 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id), 3731 (u32)(i_set >> 32)); 3732 hena |= BIT_ULL(flow_id); 3733 } 3734 } 3735 3736 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena); 3737 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32)); 3738 i40e_flush(hw); 3739 3740 return 0; 3741 } 3742 3743 /** 3744 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry 3745 * @vsi: Pointer to the targeted VSI 3746 * @input: The filter to update or NULL to indicate deletion 3747 * @sw_idx: Software index to the filter 3748 * @cmd: The command to get or set Rx flow classification rules 3749 * 3750 * This function updates (or deletes) a Flow Director entry from 3751 * the hlist of the corresponding PF 3752 * 3753 * Returns 0 on success 3754 **/ 3755 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi, 3756 struct i40e_fdir_filter *input, 3757 u16 sw_idx, 3758 struct ethtool_rxnfc *cmd) 3759 { 3760 struct i40e_fdir_filter *rule, *parent; 3761 struct i40e_pf *pf = vsi->back; 3762 struct hlist_node *node2; 3763 int err = -EINVAL; 3764 3765 parent = NULL; 3766 rule = NULL; 3767 3768 hlist_for_each_entry_safe(rule, node2, 3769 &pf->fdir_filter_list, fdir_node) { 3770 /* hash found, or no matching entry */ 3771 if (rule->fd_id >= sw_idx) 3772 break; 3773 parent = rule; 3774 } 3775 3776 /* if there is an old rule occupying our place remove it */ 3777 if (rule && (rule->fd_id == sw_idx)) { 3778 /* Remove this rule, since we're either deleting it, or 3779 * replacing it. 3780 */ 3781 err = i40e_add_del_fdir(vsi, rule, false); 3782 hlist_del(&rule->fdir_node); 3783 kfree(rule); 3784 pf->fdir_pf_active_filters--; 3785 } 3786 3787 /* If we weren't given an input, this is a delete, so just return the 3788 * error code indicating if there was an entry at the requested slot 3789 */ 3790 if (!input) 3791 return err; 3792 3793 /* Otherwise, install the new rule as requested */ 3794 INIT_HLIST_NODE(&input->fdir_node); 3795 3796 /* add filter to the list */ 3797 if (parent) 3798 hlist_add_behind(&input->fdir_node, &parent->fdir_node); 3799 else 3800 hlist_add_head(&input->fdir_node, 3801 &pf->fdir_filter_list); 3802 3803 /* update counts */ 3804 pf->fdir_pf_active_filters++; 3805 3806 return 0; 3807 } 3808 3809 /** 3810 * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table 3811 * @pf: pointer to PF structure 3812 * 3813 * This function searches the list of filters and determines which FLX_PIT 3814 * entries are still required. It will prune any entries which are no longer 3815 * in use after the deletion. 3816 **/ 3817 static void i40e_prune_flex_pit_list(struct i40e_pf *pf) 3818 { 3819 struct i40e_flex_pit *entry, *tmp; 3820 struct i40e_fdir_filter *rule; 3821 3822 /* First, we'll check the l3 table */ 3823 list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) { 3824 bool found = false; 3825 3826 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3827 if (rule->flow_type != IP_USER_FLOW) 3828 continue; 3829 if (rule->flex_filter && 3830 rule->flex_offset == entry->src_offset) { 3831 found = true; 3832 break; 3833 } 3834 } 3835 3836 /* If we didn't find the filter, then we can prune this entry 3837 * from the list. 3838 */ 3839 if (!found) { 3840 list_del(&entry->list); 3841 kfree(entry); 3842 } 3843 } 3844 3845 /* Followed by the L4 table */ 3846 list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) { 3847 bool found = false; 3848 3849 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3850 /* Skip this filter if it's L3, since we already 3851 * checked those in the above loop 3852 */ 3853 if (rule->flow_type == IP_USER_FLOW) 3854 continue; 3855 if (rule->flex_filter && 3856 rule->flex_offset == entry->src_offset) { 3857 found = true; 3858 break; 3859 } 3860 } 3861 3862 /* If we didn't find the filter, then we can prune this entry 3863 * from the list. 3864 */ 3865 if (!found) { 3866 list_del(&entry->list); 3867 kfree(entry); 3868 } 3869 } 3870 } 3871 3872 /** 3873 * i40e_del_fdir_entry - Deletes a Flow Director filter entry 3874 * @vsi: Pointer to the targeted VSI 3875 * @cmd: The command to get or set Rx flow classification rules 3876 * 3877 * The function removes a Flow Director filter entry from the 3878 * hlist of the corresponding PF 3879 * 3880 * Returns 0 on success 3881 */ 3882 static int i40e_del_fdir_entry(struct i40e_vsi *vsi, 3883 struct ethtool_rxnfc *cmd) 3884 { 3885 struct ethtool_rx_flow_spec *fsp = 3886 (struct ethtool_rx_flow_spec *)&cmd->fs; 3887 struct i40e_pf *pf = vsi->back; 3888 int ret = 0; 3889 3890 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 3891 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 3892 return -EBUSY; 3893 3894 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 3895 return -EBUSY; 3896 3897 ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd); 3898 3899 i40e_prune_flex_pit_list(pf); 3900 3901 i40e_fdir_check_and_reenable(pf); 3902 return ret; 3903 } 3904 3905 /** 3906 * i40e_unused_pit_index - Find an unused PIT index for given list 3907 * @pf: the PF data structure 3908 * 3909 * Find the first unused flexible PIT index entry. We search both the L3 and 3910 * L4 flexible PIT lists so that the returned index is unique and unused by 3911 * either currently programmed L3 or L4 filters. We use a bit field as storage 3912 * to track which indexes are already used. 3913 **/ 3914 static u8 i40e_unused_pit_index(struct i40e_pf *pf) 3915 { 3916 unsigned long available_index = 0xFF; 3917 struct i40e_flex_pit *entry; 3918 3919 /* We need to make sure that the new index isn't in use by either L3 3920 * or L4 filters so that IP_USER_FLOW filters can program both L3 and 3921 * L4 to use the same index. 3922 */ 3923 3924 list_for_each_entry(entry, &pf->l4_flex_pit_list, list) 3925 clear_bit(entry->pit_index, &available_index); 3926 3927 list_for_each_entry(entry, &pf->l3_flex_pit_list, list) 3928 clear_bit(entry->pit_index, &available_index); 3929 3930 return find_first_bit(&available_index, 8); 3931 } 3932 3933 /** 3934 * i40e_find_flex_offset - Find an existing flex src_offset 3935 * @flex_pit_list: L3 or L4 flex PIT list 3936 * @src_offset: new src_offset to find 3937 * 3938 * Searches the flex_pit_list for an existing offset. If no offset is 3939 * currently programmed, then this will return an ERR_PTR if there is no space 3940 * to add a new offset, otherwise it returns NULL. 3941 **/ 3942 static 3943 struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list, 3944 u16 src_offset) 3945 { 3946 struct i40e_flex_pit *entry; 3947 int size = 0; 3948 3949 /* Search for the src_offset first. If we find a matching entry 3950 * already programmed, we can simply re-use it. 3951 */ 3952 list_for_each_entry(entry, flex_pit_list, list) { 3953 size++; 3954 if (entry->src_offset == src_offset) 3955 return entry; 3956 } 3957 3958 /* If we haven't found an entry yet, then the provided src offset has 3959 * not yet been programmed. We will program the src offset later on, 3960 * but we need to indicate whether there is enough space to do so 3961 * here. We'll make use of ERR_PTR for this purpose. 3962 */ 3963 if (size >= I40E_FLEX_PIT_TABLE_SIZE) 3964 return ERR_PTR(-ENOSPC); 3965 3966 return NULL; 3967 } 3968 3969 /** 3970 * i40e_add_flex_offset - Add src_offset to flex PIT table list 3971 * @flex_pit_list: L3 or L4 flex PIT list 3972 * @src_offset: new src_offset to add 3973 * @pit_index: the PIT index to program 3974 * 3975 * This function programs the new src_offset to the list. It is expected that 3976 * i40e_find_flex_offset has already been tried and returned NULL, indicating 3977 * that this offset is not programmed, and that the list has enough space to 3978 * store another offset. 3979 * 3980 * Returns 0 on success, and negative value on error. 3981 **/ 3982 static int i40e_add_flex_offset(struct list_head *flex_pit_list, 3983 u16 src_offset, 3984 u8 pit_index) 3985 { 3986 struct i40e_flex_pit *new_pit, *entry; 3987 3988 new_pit = kzalloc(sizeof(*entry), GFP_KERNEL); 3989 if (!new_pit) 3990 return -ENOMEM; 3991 3992 new_pit->src_offset = src_offset; 3993 new_pit->pit_index = pit_index; 3994 3995 /* We need to insert this item such that the list is sorted by 3996 * src_offset in ascending order. 3997 */ 3998 list_for_each_entry(entry, flex_pit_list, list) { 3999 if (new_pit->src_offset < entry->src_offset) { 4000 list_add_tail(&new_pit->list, &entry->list); 4001 return 0; 4002 } 4003 4004 /* If we found an entry with our offset already programmed we 4005 * can simply return here, after freeing the memory. However, 4006 * if the pit_index does not match we need to report an error. 4007 */ 4008 if (new_pit->src_offset == entry->src_offset) { 4009 int err = 0; 4010 4011 /* If the PIT index is not the same we can't re-use 4012 * the entry, so we must report an error. 4013 */ 4014 if (new_pit->pit_index != entry->pit_index) 4015 err = -EINVAL; 4016 4017 kfree(new_pit); 4018 return err; 4019 } 4020 } 4021 4022 /* If we reached here, then we haven't yet added the item. This means 4023 * that we should add the item at the end of the list. 4024 */ 4025 list_add_tail(&new_pit->list, flex_pit_list); 4026 return 0; 4027 } 4028 4029 /** 4030 * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table 4031 * @pf: Pointer to the PF structure 4032 * @flex_pit_list: list of flexible src offsets in use 4033 * @flex_pit_start: index to first entry for this section of the table 4034 * 4035 * In order to handle flexible data, the hardware uses a table of values 4036 * called the FLX_PIT table. This table is used to indicate which sections of 4037 * the input correspond to what PIT index values. Unfortunately, hardware is 4038 * very restrictive about programming this table. Entries must be ordered by 4039 * src_offset in ascending order, without duplicates. Additionally, unused 4040 * entries must be set to the unused index value, and must have valid size and 4041 * length according to the src_offset ordering. 4042 * 4043 * This function will reprogram the FLX_PIT register from a book-keeping 4044 * structure that we guarantee is already ordered correctly, and has no more 4045 * than 3 entries. 4046 * 4047 * To make things easier, we only support flexible values of one word length, 4048 * rather than allowing variable length flexible values. 4049 **/ 4050 static void __i40e_reprogram_flex_pit(struct i40e_pf *pf, 4051 struct list_head *flex_pit_list, 4052 int flex_pit_start) 4053 { 4054 struct i40e_flex_pit *entry = NULL; 4055 u16 last_offset = 0; 4056 int i = 0, j = 0; 4057 4058 /* First, loop over the list of flex PIT entries, and reprogram the 4059 * registers. 4060 */ 4061 list_for_each_entry(entry, flex_pit_list, list) { 4062 /* We have to be careful when programming values for the 4063 * largest SRC_OFFSET value. It is possible that adding 4064 * additional empty values at the end would overflow the space 4065 * for the SRC_OFFSET in the FLX_PIT register. To avoid this, 4066 * we check here and add the empty values prior to adding the 4067 * largest value. 4068 * 4069 * To determine this, we will use a loop from i+1 to 3, which 4070 * will determine whether the unused entries would have valid 4071 * SRC_OFFSET. Note that there cannot be extra entries past 4072 * this value, because the only valid values would have been 4073 * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not 4074 * have been added to the list in the first place. 4075 */ 4076 for (j = i + 1; j < 3; j++) { 4077 u16 offset = entry->src_offset + j; 4078 int index = flex_pit_start + i; 4079 u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 4080 1, 4081 offset - 3); 4082 4083 if (offset > I40E_MAX_FLEX_SRC_OFFSET) { 4084 i40e_write_rx_ctl(&pf->hw, 4085 I40E_PRTQF_FLX_PIT(index), 4086 value); 4087 i++; 4088 } 4089 } 4090 4091 /* Now, we can program the actual value into the table */ 4092 i40e_write_rx_ctl(&pf->hw, 4093 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 4094 I40E_FLEX_PREP_VAL(entry->pit_index + 50, 4095 1, 4096 entry->src_offset)); 4097 i++; 4098 } 4099 4100 /* In order to program the last entries in the table, we need to 4101 * determine the valid offset. If the list is empty, we'll just start 4102 * with 0. Otherwise, we'll start with the last item offset and add 1. 4103 * This ensures that all entries have valid sizes. If we don't do this 4104 * correctly, the hardware will disable flexible field parsing. 4105 */ 4106 if (!list_empty(flex_pit_list)) 4107 last_offset = list_prev_entry(entry, list)->src_offset + 1; 4108 4109 for (; i < 3; i++, last_offset++) { 4110 i40e_write_rx_ctl(&pf->hw, 4111 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 4112 I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 4113 1, 4114 last_offset)); 4115 } 4116 } 4117 4118 /** 4119 * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change 4120 * @pf: pointer to the PF structure 4121 * 4122 * This function reprograms both the L3 and L4 FLX_PIT tables. See the 4123 * internal helper function for implementation details. 4124 **/ 4125 static void i40e_reprogram_flex_pit(struct i40e_pf *pf) 4126 { 4127 __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list, 4128 I40E_FLEX_PIT_IDX_START_L3); 4129 4130 __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list, 4131 I40E_FLEX_PIT_IDX_START_L4); 4132 4133 /* We also need to program the L3 and L4 GLQF ORT register */ 4134 i40e_write_rx_ctl(&pf->hw, 4135 I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX), 4136 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3, 4137 3, 1)); 4138 4139 i40e_write_rx_ctl(&pf->hw, 4140 I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX), 4141 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4, 4142 3, 1)); 4143 } 4144 4145 /** 4146 * i40e_flow_str - Converts a flow_type into a human readable string 4147 * @fsp: the flow specification 4148 * 4149 * Currently only flow types we support are included here, and the string 4150 * value attempts to match what ethtool would use to configure this flow type. 4151 **/ 4152 static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp) 4153 { 4154 switch (fsp->flow_type & ~FLOW_EXT) { 4155 case TCP_V4_FLOW: 4156 return "tcp4"; 4157 case UDP_V4_FLOW: 4158 return "udp4"; 4159 case SCTP_V4_FLOW: 4160 return "sctp4"; 4161 case IP_USER_FLOW: 4162 return "ip4"; 4163 case TCP_V6_FLOW: 4164 return "tcp6"; 4165 case UDP_V6_FLOW: 4166 return "udp6"; 4167 case SCTP_V6_FLOW: 4168 return "sctp6"; 4169 case IPV6_USER_FLOW: 4170 return "ip6"; 4171 default: 4172 return "unknown"; 4173 } 4174 } 4175 4176 /** 4177 * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index 4178 * @pit_index: PIT index to convert 4179 * 4180 * Returns the mask for a given PIT index. Will return 0 if the pit_index is 4181 * of range. 4182 **/ 4183 static u64 i40e_pit_index_to_mask(int pit_index) 4184 { 4185 switch (pit_index) { 4186 case 0: 4187 return I40E_FLEX_50_MASK; 4188 case 1: 4189 return I40E_FLEX_51_MASK; 4190 case 2: 4191 return I40E_FLEX_52_MASK; 4192 case 3: 4193 return I40E_FLEX_53_MASK; 4194 case 4: 4195 return I40E_FLEX_54_MASK; 4196 case 5: 4197 return I40E_FLEX_55_MASK; 4198 case 6: 4199 return I40E_FLEX_56_MASK; 4200 case 7: 4201 return I40E_FLEX_57_MASK; 4202 default: 4203 return 0; 4204 } 4205 } 4206 4207 /** 4208 * i40e_print_input_set - Show changes between two input sets 4209 * @vsi: the vsi being configured 4210 * @old: the old input set 4211 * @new: the new input set 4212 * 4213 * Print the difference between old and new input sets by showing which series 4214 * of words are toggled on or off. Only displays the bits we actually support 4215 * changing. 4216 **/ 4217 static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new) 4218 { 4219 struct i40e_pf *pf = vsi->back; 4220 bool old_value, new_value; 4221 int i; 4222 4223 old_value = !!(old & I40E_L3_SRC_MASK); 4224 new_value = !!(new & I40E_L3_SRC_MASK); 4225 if (old_value != new_value) 4226 netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n", 4227 old_value ? "ON" : "OFF", 4228 new_value ? "ON" : "OFF"); 4229 4230 old_value = !!(old & I40E_L3_DST_MASK); 4231 new_value = !!(new & I40E_L3_DST_MASK); 4232 if (old_value != new_value) 4233 netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n", 4234 old_value ? "ON" : "OFF", 4235 new_value ? "ON" : "OFF"); 4236 4237 old_value = !!(old & I40E_L4_SRC_MASK); 4238 new_value = !!(new & I40E_L4_SRC_MASK); 4239 if (old_value != new_value) 4240 netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n", 4241 old_value ? "ON" : "OFF", 4242 new_value ? "ON" : "OFF"); 4243 4244 old_value = !!(old & I40E_L4_DST_MASK); 4245 new_value = !!(new & I40E_L4_DST_MASK); 4246 if (old_value != new_value) 4247 netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n", 4248 old_value ? "ON" : "OFF", 4249 new_value ? "ON" : "OFF"); 4250 4251 old_value = !!(old & I40E_VERIFY_TAG_MASK); 4252 new_value = !!(new & I40E_VERIFY_TAG_MASK); 4253 if (old_value != new_value) 4254 netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n", 4255 old_value ? "ON" : "OFF", 4256 new_value ? "ON" : "OFF"); 4257 4258 /* Show change of flexible filter entries */ 4259 for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) { 4260 u64 flex_mask = i40e_pit_index_to_mask(i); 4261 4262 old_value = !!(old & flex_mask); 4263 new_value = !!(new & flex_mask); 4264 if (old_value != new_value) 4265 netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n", 4266 i, 4267 old_value ? "ON" : "OFF", 4268 new_value ? "ON" : "OFF"); 4269 } 4270 4271 netif_info(pf, drv, vsi->netdev, " Current input set: %0llx\n", 4272 old); 4273 netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n", 4274 new); 4275 } 4276 4277 /** 4278 * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid 4279 * @vsi: pointer to the targeted VSI 4280 * @fsp: pointer to Rx flow specification 4281 * @userdef: userdefined data from flow specification 4282 * 4283 * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support 4284 * for partial matches exists with a few limitations. First, hardware only 4285 * supports masking by word boundary (2 bytes) and not per individual bit. 4286 * Second, hardware is limited to using one mask for a flow type and cannot 4287 * use a separate mask for each filter. 4288 * 4289 * To support these limitations, if we already have a configured filter for 4290 * the specified type, this function enforces that new filters of the type 4291 * match the configured input set. Otherwise, if we do not have a filter of 4292 * the specified type, we allow the input set to be updated to match the 4293 * desired filter. 4294 * 4295 * To help ensure that administrators understand why filters weren't displayed 4296 * as supported, we print a diagnostic message displaying how the input set 4297 * would change and warning to delete the preexisting filters if required. 4298 * 4299 * Returns 0 on successful input set match, and a negative return code on 4300 * failure. 4301 **/ 4302 static int i40e_check_fdir_input_set(struct i40e_vsi *vsi, 4303 struct ethtool_rx_flow_spec *fsp, 4304 struct i40e_rx_flow_userdef *userdef) 4305 { 4306 static const __be32 ipv6_full_mask[4] = {cpu_to_be32(0xffffffff), 4307 cpu_to_be32(0xffffffff), cpu_to_be32(0xffffffff), 4308 cpu_to_be32(0xffffffff)}; 4309 struct ethtool_tcpip6_spec *tcp_ip6_spec; 4310 struct ethtool_usrip6_spec *usr_ip6_spec; 4311 struct ethtool_tcpip4_spec *tcp_ip4_spec; 4312 struct ethtool_usrip4_spec *usr_ip4_spec; 4313 struct i40e_pf *pf = vsi->back; 4314 u64 current_mask, new_mask; 4315 bool new_flex_offset = false; 4316 bool flex_l3 = false; 4317 u16 *fdir_filter_count; 4318 u16 index, src_offset = 0; 4319 u8 pit_index = 0; 4320 int err; 4321 4322 switch (fsp->flow_type & ~FLOW_EXT) { 4323 case SCTP_V4_FLOW: 4324 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP; 4325 fdir_filter_count = &pf->fd_sctp4_filter_cnt; 4326 break; 4327 case TCP_V4_FLOW: 4328 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 4329 fdir_filter_count = &pf->fd_tcp4_filter_cnt; 4330 break; 4331 case UDP_V4_FLOW: 4332 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 4333 fdir_filter_count = &pf->fd_udp4_filter_cnt; 4334 break; 4335 case SCTP_V6_FLOW: 4336 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP; 4337 fdir_filter_count = &pf->fd_sctp6_filter_cnt; 4338 break; 4339 case TCP_V6_FLOW: 4340 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 4341 fdir_filter_count = &pf->fd_tcp6_filter_cnt; 4342 break; 4343 case UDP_V6_FLOW: 4344 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 4345 fdir_filter_count = &pf->fd_udp6_filter_cnt; 4346 break; 4347 case IP_USER_FLOW: 4348 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER; 4349 fdir_filter_count = &pf->fd_ip4_filter_cnt; 4350 flex_l3 = true; 4351 break; 4352 case IPV6_USER_FLOW: 4353 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER; 4354 fdir_filter_count = &pf->fd_ip6_filter_cnt; 4355 flex_l3 = true; 4356 break; 4357 default: 4358 return -EOPNOTSUPP; 4359 } 4360 4361 /* Read the current input set from register memory. */ 4362 current_mask = i40e_read_fd_input_set(pf, index); 4363 new_mask = current_mask; 4364 4365 /* Determine, if any, the required changes to the input set in order 4366 * to support the provided mask. 4367 * 4368 * Hardware only supports masking at word (2 byte) granularity and does 4369 * not support full bitwise masking. This implementation simplifies 4370 * even further and only supports fully enabled or fully disabled 4371 * masks for each field, even though we could split the ip4src and 4372 * ip4dst fields. 4373 */ 4374 switch (fsp->flow_type & ~FLOW_EXT) { 4375 case SCTP_V4_FLOW: 4376 new_mask &= ~I40E_VERIFY_TAG_MASK; 4377 fallthrough; 4378 case TCP_V4_FLOW: 4379 case UDP_V4_FLOW: 4380 tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec; 4381 4382 /* IPv4 source address */ 4383 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 4384 new_mask |= I40E_L3_SRC_MASK; 4385 else if (!tcp_ip4_spec->ip4src) 4386 new_mask &= ~I40E_L3_SRC_MASK; 4387 else 4388 return -EOPNOTSUPP; 4389 4390 /* IPv4 destination address */ 4391 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 4392 new_mask |= I40E_L3_DST_MASK; 4393 else if (!tcp_ip4_spec->ip4dst) 4394 new_mask &= ~I40E_L3_DST_MASK; 4395 else 4396 return -EOPNOTSUPP; 4397 4398 /* L4 source port */ 4399 if (tcp_ip4_spec->psrc == htons(0xFFFF)) 4400 new_mask |= I40E_L4_SRC_MASK; 4401 else if (!tcp_ip4_spec->psrc) 4402 new_mask &= ~I40E_L4_SRC_MASK; 4403 else 4404 return -EOPNOTSUPP; 4405 4406 /* L4 destination port */ 4407 if (tcp_ip4_spec->pdst == htons(0xFFFF)) 4408 new_mask |= I40E_L4_DST_MASK; 4409 else if (!tcp_ip4_spec->pdst) 4410 new_mask &= ~I40E_L4_DST_MASK; 4411 else 4412 return -EOPNOTSUPP; 4413 4414 /* Filtering on Type of Service is not supported. */ 4415 if (tcp_ip4_spec->tos) 4416 return -EOPNOTSUPP; 4417 4418 break; 4419 case SCTP_V6_FLOW: 4420 new_mask &= ~I40E_VERIFY_TAG_MASK; 4421 fallthrough; 4422 case TCP_V6_FLOW: 4423 case UDP_V6_FLOW: 4424 tcp_ip6_spec = &fsp->m_u.tcp_ip6_spec; 4425 4426 /* Check if user provided IPv6 source address. */ 4427 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6src, 4428 (struct in6_addr *)&ipv6_full_mask)) 4429 new_mask |= I40E_L3_V6_SRC_MASK; 4430 else if (ipv6_addr_any((struct in6_addr *) 4431 &tcp_ip6_spec->ip6src)) 4432 new_mask &= ~I40E_L3_V6_SRC_MASK; 4433 else 4434 return -EOPNOTSUPP; 4435 4436 /* Check if user provided destination address. */ 4437 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6dst, 4438 (struct in6_addr *)&ipv6_full_mask)) 4439 new_mask |= I40E_L3_V6_DST_MASK; 4440 else if (ipv6_addr_any((struct in6_addr *) 4441 &tcp_ip6_spec->ip6dst)) 4442 new_mask &= ~I40E_L3_V6_DST_MASK; 4443 else 4444 return -EOPNOTSUPP; 4445 4446 /* L4 source port */ 4447 if (tcp_ip6_spec->psrc == htons(0xFFFF)) 4448 new_mask |= I40E_L4_SRC_MASK; 4449 else if (!tcp_ip6_spec->psrc) 4450 new_mask &= ~I40E_L4_SRC_MASK; 4451 else 4452 return -EOPNOTSUPP; 4453 4454 /* L4 destination port */ 4455 if (tcp_ip6_spec->pdst == htons(0xFFFF)) 4456 new_mask |= I40E_L4_DST_MASK; 4457 else if (!tcp_ip6_spec->pdst) 4458 new_mask &= ~I40E_L4_DST_MASK; 4459 else 4460 return -EOPNOTSUPP; 4461 4462 /* Filtering on Traffic Classes is not supported. */ 4463 if (tcp_ip6_spec->tclass) 4464 return -EOPNOTSUPP; 4465 break; 4466 case IP_USER_FLOW: 4467 usr_ip4_spec = &fsp->m_u.usr_ip4_spec; 4468 4469 /* IPv4 source address */ 4470 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 4471 new_mask |= I40E_L3_SRC_MASK; 4472 else if (!usr_ip4_spec->ip4src) 4473 new_mask &= ~I40E_L3_SRC_MASK; 4474 else 4475 return -EOPNOTSUPP; 4476 4477 /* IPv4 destination address */ 4478 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 4479 new_mask |= I40E_L3_DST_MASK; 4480 else if (!usr_ip4_spec->ip4dst) 4481 new_mask &= ~I40E_L3_DST_MASK; 4482 else 4483 return -EOPNOTSUPP; 4484 4485 /* First 4 bytes of L4 header */ 4486 if (usr_ip4_spec->l4_4_bytes) 4487 return -EOPNOTSUPP; 4488 4489 /* Filtering on Type of Service is not supported. */ 4490 if (usr_ip4_spec->tos) 4491 return -EOPNOTSUPP; 4492 4493 /* Filtering on IP version is not supported */ 4494 if (usr_ip4_spec->ip_ver) 4495 return -EINVAL; 4496 4497 /* Filtering on L4 protocol is not supported */ 4498 if (usr_ip4_spec->proto) 4499 return -EINVAL; 4500 4501 break; 4502 case IPV6_USER_FLOW: 4503 usr_ip6_spec = &fsp->m_u.usr_ip6_spec; 4504 4505 /* Check if user provided IPv6 source address. */ 4506 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6src, 4507 (struct in6_addr *)&ipv6_full_mask)) 4508 new_mask |= I40E_L3_V6_SRC_MASK; 4509 else if (ipv6_addr_any((struct in6_addr *) 4510 &usr_ip6_spec->ip6src)) 4511 new_mask &= ~I40E_L3_V6_SRC_MASK; 4512 else 4513 return -EOPNOTSUPP; 4514 4515 /* Check if user provided destination address. */ 4516 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6dst, 4517 (struct in6_addr *)&ipv6_full_mask)) 4518 new_mask |= I40E_L3_V6_DST_MASK; 4519 else if (ipv6_addr_any((struct in6_addr *) 4520 &usr_ip6_spec->ip6dst)) 4521 new_mask &= ~I40E_L3_V6_DST_MASK; 4522 else 4523 return -EOPNOTSUPP; 4524 4525 if (usr_ip6_spec->l4_4_bytes) 4526 return -EOPNOTSUPP; 4527 4528 /* Filtering on Traffic class is not supported. */ 4529 if (usr_ip6_spec->tclass) 4530 return -EOPNOTSUPP; 4531 4532 /* Filtering on L4 protocol is not supported */ 4533 if (usr_ip6_spec->l4_proto) 4534 return -EINVAL; 4535 4536 break; 4537 default: 4538 return -EOPNOTSUPP; 4539 } 4540 4541 if (fsp->flow_type & FLOW_EXT) { 4542 /* Allow only 802.1Q and no etype defined, as 4543 * later it's modified to 0x8100 4544 */ 4545 if (fsp->h_ext.vlan_etype != htons(ETH_P_8021Q) && 4546 fsp->h_ext.vlan_etype != 0) 4547 return -EOPNOTSUPP; 4548 if (fsp->m_ext.vlan_tci == htons(0xFFFF)) 4549 new_mask |= I40E_VLAN_SRC_MASK; 4550 else 4551 new_mask &= ~I40E_VLAN_SRC_MASK; 4552 } 4553 4554 /* First, clear all flexible filter entries */ 4555 new_mask &= ~I40E_FLEX_INPUT_MASK; 4556 4557 /* If we have a flexible filter, try to add this offset to the correct 4558 * flexible filter PIT list. Once finished, we can update the mask. 4559 * If the src_offset changed, we will get a new mask value which will 4560 * trigger an input set change. 4561 */ 4562 if (userdef->flex_filter) { 4563 struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL; 4564 4565 /* Flexible offset must be even, since the flexible payload 4566 * must be aligned on 2-byte boundary. 4567 */ 4568 if (userdef->flex_offset & 0x1) { 4569 dev_warn(&pf->pdev->dev, 4570 "Flexible data offset must be 2-byte aligned\n"); 4571 return -EINVAL; 4572 } 4573 4574 src_offset = userdef->flex_offset >> 1; 4575 4576 /* FLX_PIT source offset value is only so large */ 4577 if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) { 4578 dev_warn(&pf->pdev->dev, 4579 "Flexible data must reside within first 64 bytes of the packet payload\n"); 4580 return -EINVAL; 4581 } 4582 4583 /* See if this offset has already been programmed. If we get 4584 * an ERR_PTR, then the filter is not safe to add. Otherwise, 4585 * if we get a NULL pointer, this means we will need to add 4586 * the offset. 4587 */ 4588 flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list, 4589 src_offset); 4590 if (IS_ERR(flex_pit)) 4591 return PTR_ERR(flex_pit); 4592 4593 /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown) 4594 * packet types, and thus we need to program both L3 and L4 4595 * flexible values. These must have identical flexible index, 4596 * as otherwise we can't correctly program the input set. So 4597 * we'll find both an L3 and L4 index and make sure they are 4598 * the same. 4599 */ 4600 if (flex_l3) { 4601 l3_flex_pit = 4602 i40e_find_flex_offset(&pf->l3_flex_pit_list, 4603 src_offset); 4604 if (IS_ERR(l3_flex_pit)) 4605 return PTR_ERR(l3_flex_pit); 4606 4607 if (flex_pit) { 4608 /* If we already had a matching L4 entry, we 4609 * need to make sure that the L3 entry we 4610 * obtained uses the same index. 4611 */ 4612 if (l3_flex_pit) { 4613 if (l3_flex_pit->pit_index != 4614 flex_pit->pit_index) { 4615 return -EINVAL; 4616 } 4617 } else { 4618 new_flex_offset = true; 4619 } 4620 } else { 4621 flex_pit = l3_flex_pit; 4622 } 4623 } 4624 4625 /* If we didn't find an existing flex offset, we need to 4626 * program a new one. However, we don't immediately program it 4627 * here because we will wait to program until after we check 4628 * that it is safe to change the input set. 4629 */ 4630 if (!flex_pit) { 4631 new_flex_offset = true; 4632 pit_index = i40e_unused_pit_index(pf); 4633 } else { 4634 pit_index = flex_pit->pit_index; 4635 } 4636 4637 /* Update the mask with the new offset */ 4638 new_mask |= i40e_pit_index_to_mask(pit_index); 4639 } 4640 4641 /* If the mask and flexible filter offsets for this filter match the 4642 * currently programmed values we don't need any input set change, so 4643 * this filter is safe to install. 4644 */ 4645 if (new_mask == current_mask && !new_flex_offset) 4646 return 0; 4647 4648 netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n", 4649 i40e_flow_str(fsp)); 4650 i40e_print_input_set(vsi, current_mask, new_mask); 4651 if (new_flex_offset) { 4652 netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d", 4653 pit_index, src_offset); 4654 } 4655 4656 /* Hardware input sets are global across multiple ports, so even the 4657 * main port cannot change them when in MFP mode as this would impact 4658 * any filters on the other ports. 4659 */ 4660 if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) { 4661 netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n"); 4662 return -EOPNOTSUPP; 4663 } 4664 4665 /* This filter requires us to update the input set. However, hardware 4666 * only supports one input set per flow type, and does not support 4667 * separate masks for each filter. This means that we can only support 4668 * a single mask for all filters of a specific type. 4669 * 4670 * If we have preexisting filters, they obviously depend on the 4671 * current programmed input set. Display a diagnostic message in this 4672 * case explaining why the filter could not be accepted. 4673 */ 4674 if (*fdir_filter_count) { 4675 netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n", 4676 i40e_flow_str(fsp), 4677 *fdir_filter_count); 4678 return -EOPNOTSUPP; 4679 } 4680 4681 i40e_write_fd_input_set(pf, index, new_mask); 4682 4683 /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented 4684 * frames. If we're programming the input set for IPv4/Other, we also 4685 * need to program the IPv4/Fragmented input set. Since we don't have 4686 * separate support, we'll always assume and enforce that the two flow 4687 * types must have matching input sets. 4688 */ 4689 if (index == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) 4690 i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4, 4691 new_mask); 4692 4693 /* Add the new offset and update table, if necessary */ 4694 if (new_flex_offset) { 4695 err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset, 4696 pit_index); 4697 if (err) 4698 return err; 4699 4700 if (flex_l3) { 4701 err = i40e_add_flex_offset(&pf->l3_flex_pit_list, 4702 src_offset, 4703 pit_index); 4704 if (err) 4705 return err; 4706 } 4707 4708 i40e_reprogram_flex_pit(pf); 4709 } 4710 4711 return 0; 4712 } 4713 4714 /** 4715 * i40e_match_fdir_filter - Return true of two filters match 4716 * @a: pointer to filter struct 4717 * @b: pointer to filter struct 4718 * 4719 * Returns true if the two filters match exactly the same criteria. I.e. they 4720 * match the same flow type and have the same parameters. We don't need to 4721 * check any input-set since all filters of the same flow type must use the 4722 * same input set. 4723 **/ 4724 static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a, 4725 struct i40e_fdir_filter *b) 4726 { 4727 /* The filters do not much if any of these criteria differ. */ 4728 if (a->dst_ip != b->dst_ip || 4729 a->src_ip != b->src_ip || 4730 a->dst_port != b->dst_port || 4731 a->src_port != b->src_port || 4732 a->flow_type != b->flow_type || 4733 a->ipl4_proto != b->ipl4_proto || 4734 a->vlan_tag != b->vlan_tag || 4735 a->vlan_etype != b->vlan_etype) 4736 return false; 4737 4738 return true; 4739 } 4740 4741 /** 4742 * i40e_disallow_matching_filters - Check that new filters differ 4743 * @vsi: pointer to the targeted VSI 4744 * @input: new filter to check 4745 * 4746 * Due to hardware limitations, it is not possible for two filters that match 4747 * similar criteria to be programmed at the same time. This is true for a few 4748 * reasons: 4749 * 4750 * (a) all filters matching a particular flow type must use the same input 4751 * set, that is they must match the same criteria. 4752 * (b) different flow types will never match the same packet, as the flow type 4753 * is decided by hardware before checking which rules apply. 4754 * (c) hardware has no way to distinguish which order filters apply in. 4755 * 4756 * Due to this, we can't really support using the location data to order 4757 * filters in the hardware parsing. It is technically possible for the user to 4758 * request two filters matching the same criteria but which select different 4759 * queues. In this case, rather than keep both filters in the list, we reject 4760 * the 2nd filter when the user requests adding it. 4761 * 4762 * This avoids needing to track location for programming the filter to 4763 * hardware, and ensures that we avoid some strange scenarios involving 4764 * deleting filters which match the same criteria. 4765 **/ 4766 static int i40e_disallow_matching_filters(struct i40e_vsi *vsi, 4767 struct i40e_fdir_filter *input) 4768 { 4769 struct i40e_pf *pf = vsi->back; 4770 struct i40e_fdir_filter *rule; 4771 struct hlist_node *node2; 4772 4773 /* Loop through every filter, and check that it doesn't match */ 4774 hlist_for_each_entry_safe(rule, node2, 4775 &pf->fdir_filter_list, fdir_node) { 4776 /* Don't check the filters match if they share the same fd_id, 4777 * since the new filter is actually just updating the target 4778 * of the old filter. 4779 */ 4780 if (rule->fd_id == input->fd_id) 4781 continue; 4782 4783 /* If any filters match, then print a warning message to the 4784 * kernel message buffer and bail out. 4785 */ 4786 if (i40e_match_fdir_filter(rule, input)) { 4787 dev_warn(&pf->pdev->dev, 4788 "Existing user defined filter %d already matches this flow.\n", 4789 rule->fd_id); 4790 return -EINVAL; 4791 } 4792 } 4793 4794 return 0; 4795 } 4796 4797 /** 4798 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters 4799 * @vsi: pointer to the targeted VSI 4800 * @cmd: command to get or set RX flow classification rules 4801 * 4802 * Add Flow Director filters for a specific flow spec based on their 4803 * protocol. Returns 0 if the filters were successfully added. 4804 **/ 4805 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi, 4806 struct ethtool_rxnfc *cmd) 4807 { 4808 struct i40e_rx_flow_userdef userdef; 4809 struct ethtool_rx_flow_spec *fsp; 4810 struct i40e_fdir_filter *input; 4811 u16 dest_vsi = 0, q_index = 0; 4812 struct i40e_pf *pf; 4813 int ret = -EINVAL; 4814 u8 dest_ctl; 4815 4816 if (!vsi) 4817 return -EINVAL; 4818 pf = vsi->back; 4819 4820 if (!test_bit(I40E_FLAG_FD_SB_ENA, pf->flags)) 4821 return -EOPNOTSUPP; 4822 4823 if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state)) 4824 return -ENOSPC; 4825 4826 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 4827 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 4828 return -EBUSY; 4829 4830 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 4831 return -EBUSY; 4832 4833 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs; 4834 4835 /* Parse the user-defined field */ 4836 if (i40e_parse_rx_flow_user_data(fsp, &userdef)) 4837 return -EINVAL; 4838 4839 /* Extended MAC field is not supported */ 4840 if (fsp->flow_type & FLOW_MAC_EXT) 4841 return -EINVAL; 4842 4843 ret = i40e_check_fdir_input_set(vsi, fsp, &userdef); 4844 if (ret) 4845 return ret; 4846 4847 if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort + 4848 pf->hw.func_caps.fd_filters_guaranteed)) { 4849 return -EINVAL; 4850 } 4851 4852 /* ring_cookie is either the drop index, or is a mask of the queue 4853 * index and VF id we wish to target. 4854 */ 4855 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) { 4856 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 4857 } else { 4858 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie); 4859 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie); 4860 4861 if (!vf) { 4862 if (ring >= vsi->num_queue_pairs) 4863 return -EINVAL; 4864 dest_vsi = vsi->id; 4865 } else { 4866 /* VFs are zero-indexed, so we subtract one here */ 4867 vf--; 4868 4869 if (vf >= pf->num_alloc_vfs) 4870 return -EINVAL; 4871 if (ring >= pf->vf[vf].num_queue_pairs) 4872 return -EINVAL; 4873 dest_vsi = pf->vf[vf].lan_vsi_id; 4874 } 4875 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX; 4876 q_index = ring; 4877 } 4878 4879 input = kzalloc(sizeof(*input), GFP_KERNEL); 4880 4881 if (!input) 4882 return -ENOMEM; 4883 4884 input->fd_id = fsp->location; 4885 input->q_index = q_index; 4886 input->dest_vsi = dest_vsi; 4887 input->dest_ctl = dest_ctl; 4888 input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID; 4889 input->cnt_index = I40E_FD_SB_STAT_IDX(pf->hw.pf_id); 4890 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4891 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4892 input->flow_type = fsp->flow_type & ~FLOW_EXT; 4893 4894 input->vlan_etype = fsp->h_ext.vlan_etype; 4895 if (!fsp->m_ext.vlan_etype && fsp->h_ext.vlan_tci) 4896 input->vlan_etype = cpu_to_be16(ETH_P_8021Q); 4897 if (fsp->m_ext.vlan_tci && input->vlan_etype) 4898 input->vlan_tag = fsp->h_ext.vlan_tci; 4899 if (input->flow_type == IPV6_USER_FLOW || 4900 input->flow_type == UDP_V6_FLOW || 4901 input->flow_type == TCP_V6_FLOW || 4902 input->flow_type == SCTP_V6_FLOW) { 4903 /* Reverse the src and dest notion, since the HW expects them 4904 * to be from Tx perspective where as the input from user is 4905 * from Rx filter view. 4906 */ 4907 input->ipl4_proto = fsp->h_u.usr_ip6_spec.l4_proto; 4908 input->dst_port = fsp->h_u.tcp_ip6_spec.psrc; 4909 input->src_port = fsp->h_u.tcp_ip6_spec.pdst; 4910 memcpy(input->dst_ip6, fsp->h_u.ah_ip6_spec.ip6src, 4911 sizeof(__be32) * 4); 4912 memcpy(input->src_ip6, fsp->h_u.ah_ip6_spec.ip6dst, 4913 sizeof(__be32) * 4); 4914 } else { 4915 /* Reverse the src and dest notion, since the HW expects them 4916 * to be from Tx perspective where as the input from user is 4917 * from Rx filter view. 4918 */ 4919 input->ipl4_proto = fsp->h_u.usr_ip4_spec.proto; 4920 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc; 4921 input->src_port = fsp->h_u.tcp_ip4_spec.pdst; 4922 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4923 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4924 } 4925 4926 if (userdef.flex_filter) { 4927 input->flex_filter = true; 4928 input->flex_word = cpu_to_be16(userdef.flex_word); 4929 input->flex_offset = userdef.flex_offset; 4930 } 4931 4932 /* Avoid programming two filters with identical match criteria. */ 4933 ret = i40e_disallow_matching_filters(vsi, input); 4934 if (ret) 4935 goto free_filter_memory; 4936 4937 /* Add the input filter to the fdir_input_list, possibly replacing 4938 * a previous filter. Do not free the input structure after adding it 4939 * to the list as this would cause a use-after-free bug. 4940 */ 4941 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL); 4942 ret = i40e_add_del_fdir(vsi, input, true); 4943 if (ret) 4944 goto remove_sw_rule; 4945 return 0; 4946 4947 remove_sw_rule: 4948 hlist_del(&input->fdir_node); 4949 pf->fdir_pf_active_filters--; 4950 free_filter_memory: 4951 kfree(input); 4952 return ret; 4953 } 4954 4955 /** 4956 * i40e_set_rxnfc - command to set RX flow classification rules 4957 * @netdev: network interface device structure 4958 * @cmd: ethtool rxnfc command 4959 * 4960 * Returns Success if the command is supported. 4961 **/ 4962 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd) 4963 { 4964 struct i40e_netdev_priv *np = netdev_priv(netdev); 4965 struct i40e_vsi *vsi = np->vsi; 4966 struct i40e_pf *pf = vsi->back; 4967 int ret = -EOPNOTSUPP; 4968 4969 switch (cmd->cmd) { 4970 case ETHTOOL_SRXFH: 4971 ret = i40e_set_rss_hash_opt(pf, cmd); 4972 break; 4973 case ETHTOOL_SRXCLSRLINS: 4974 ret = i40e_add_fdir_ethtool(vsi, cmd); 4975 break; 4976 case ETHTOOL_SRXCLSRLDEL: 4977 ret = i40e_del_fdir_entry(vsi, cmd); 4978 break; 4979 default: 4980 break; 4981 } 4982 4983 return ret; 4984 } 4985 4986 /** 4987 * i40e_max_channels - get Max number of combined channels supported 4988 * @vsi: vsi pointer 4989 **/ 4990 static unsigned int i40e_max_channels(struct i40e_vsi *vsi) 4991 { 4992 /* TODO: This code assumes DCB and FD is disabled for now. */ 4993 return vsi->alloc_queue_pairs; 4994 } 4995 4996 /** 4997 * i40e_get_channels - Get the current channels enabled and max supported etc. 4998 * @dev: network interface device structure 4999 * @ch: ethtool channels structure 5000 * 5001 * We don't support separate tx and rx queues as channels. The other count 5002 * represents how many queues are being used for control. max_combined counts 5003 * how many queue pairs we can support. They may not be mapped 1 to 1 with 5004 * q_vectors since we support a lot more queue pairs than q_vectors. 5005 **/ 5006 static void i40e_get_channels(struct net_device *dev, 5007 struct ethtool_channels *ch) 5008 { 5009 struct i40e_netdev_priv *np = netdev_priv(dev); 5010 struct i40e_vsi *vsi = np->vsi; 5011 struct i40e_pf *pf = vsi->back; 5012 5013 /* report maximum channels */ 5014 ch->max_combined = i40e_max_channels(vsi); 5015 5016 /* report info for other vector */ 5017 ch->other_count = test_bit(I40E_FLAG_FD_SB_ENA, pf->flags) ? 1 : 0; 5018 ch->max_other = ch->other_count; 5019 5020 /* Note: This code assumes DCB is disabled for now. */ 5021 ch->combined_count = vsi->num_queue_pairs; 5022 } 5023 5024 /** 5025 * i40e_set_channels - Set the new channels count. 5026 * @dev: network interface device structure 5027 * @ch: ethtool channels structure 5028 * 5029 * The new channels count may not be the same as requested by the user 5030 * since it gets rounded down to a power of 2 value. 5031 **/ 5032 static int i40e_set_channels(struct net_device *dev, 5033 struct ethtool_channels *ch) 5034 { 5035 const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 5036 struct i40e_netdev_priv *np = netdev_priv(dev); 5037 unsigned int count = ch->combined_count; 5038 struct i40e_vsi *vsi = np->vsi; 5039 struct i40e_pf *pf = vsi->back; 5040 struct i40e_fdir_filter *rule; 5041 struct hlist_node *node2; 5042 int new_count; 5043 int err = 0; 5044 5045 /* We do not support setting channels for any other VSI at present */ 5046 if (vsi->type != I40E_VSI_MAIN) 5047 return -EINVAL; 5048 5049 /* We do not support setting channels via ethtool when TCs are 5050 * configured through mqprio 5051 */ 5052 if (i40e_is_tc_mqprio_enabled(pf)) 5053 return -EINVAL; 5054 5055 /* verify they are not requesting separate vectors */ 5056 if (!count || ch->rx_count || ch->tx_count) 5057 return -EINVAL; 5058 5059 /* verify other_count has not changed */ 5060 if (ch->other_count != (test_bit(I40E_FLAG_FD_SB_ENA, pf->flags) ? 1 : 0)) 5061 return -EINVAL; 5062 5063 /* verify the number of channels does not exceed hardware limits */ 5064 if (count > i40e_max_channels(vsi)) 5065 return -EINVAL; 5066 5067 /* verify that the number of channels does not invalidate any current 5068 * flow director rules 5069 */ 5070 hlist_for_each_entry_safe(rule, node2, 5071 &pf->fdir_filter_list, fdir_node) { 5072 if (rule->dest_ctl != drop && count <= rule->q_index) { 5073 dev_warn(&pf->pdev->dev, 5074 "Existing user defined filter %d assigns flow to queue %d\n", 5075 rule->fd_id, rule->q_index); 5076 err = -EINVAL; 5077 } 5078 } 5079 5080 if (err) { 5081 dev_err(&pf->pdev->dev, 5082 "Existing filter rules must be deleted to reduce combined channel count to %d\n", 5083 count); 5084 return err; 5085 } 5086 5087 /* update feature limits from largest to smallest supported values */ 5088 /* TODO: Flow director limit, DCB etc */ 5089 5090 /* use rss_reconfig to rebuild with new queue count and update traffic 5091 * class queue mapping 5092 */ 5093 new_count = i40e_reconfig_rss_queues(pf, count); 5094 if (new_count > 0) 5095 return 0; 5096 else 5097 return -EINVAL; 5098 } 5099 5100 /** 5101 * i40e_get_rxfh_key_size - get the RSS hash key size 5102 * @netdev: network interface device structure 5103 * 5104 * Returns the table size. 5105 **/ 5106 static u32 i40e_get_rxfh_key_size(struct net_device *netdev) 5107 { 5108 return I40E_HKEY_ARRAY_SIZE; 5109 } 5110 5111 /** 5112 * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size 5113 * @netdev: network interface device structure 5114 * 5115 * Returns the table size. 5116 **/ 5117 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev) 5118 { 5119 return I40E_HLUT_ARRAY_SIZE; 5120 } 5121 5122 /** 5123 * i40e_get_rxfh - get the rx flow hash indirection table 5124 * @netdev: network interface device structure 5125 * @indir: indirection table 5126 * @key: hash key 5127 * @hfunc: hash function 5128 * 5129 * Reads the indirection table directly from the hardware. Returns 0 on 5130 * success. 5131 **/ 5132 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 5133 u8 *hfunc) 5134 { 5135 struct i40e_netdev_priv *np = netdev_priv(netdev); 5136 struct i40e_vsi *vsi = np->vsi; 5137 u8 *lut, *seed = NULL; 5138 int ret; 5139 u16 i; 5140 5141 if (hfunc) 5142 *hfunc = ETH_RSS_HASH_TOP; 5143 5144 if (!indir) 5145 return 0; 5146 5147 seed = key; 5148 lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 5149 if (!lut) 5150 return -ENOMEM; 5151 ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE); 5152 if (ret) 5153 goto out; 5154 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 5155 indir[i] = (u32)(lut[i]); 5156 5157 out: 5158 kfree(lut); 5159 5160 return ret; 5161 } 5162 5163 /** 5164 * i40e_set_rxfh - set the rx flow hash indirection table 5165 * @netdev: network interface device structure 5166 * @indir: indirection table 5167 * @key: hash key 5168 * @hfunc: hash function to use 5169 * 5170 * Returns -EINVAL if the table specifies an invalid queue id, otherwise 5171 * returns 0 after programming the table. 5172 **/ 5173 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir, 5174 const u8 *key, const u8 hfunc) 5175 { 5176 struct i40e_netdev_priv *np = netdev_priv(netdev); 5177 struct i40e_vsi *vsi = np->vsi; 5178 struct i40e_pf *pf = vsi->back; 5179 u8 *seed = NULL; 5180 u16 i; 5181 5182 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) 5183 return -EOPNOTSUPP; 5184 5185 if (key) { 5186 if (!vsi->rss_hkey_user) { 5187 vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE, 5188 GFP_KERNEL); 5189 if (!vsi->rss_hkey_user) 5190 return -ENOMEM; 5191 } 5192 memcpy(vsi->rss_hkey_user, key, I40E_HKEY_ARRAY_SIZE); 5193 seed = vsi->rss_hkey_user; 5194 } 5195 if (!vsi->rss_lut_user) { 5196 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 5197 if (!vsi->rss_lut_user) 5198 return -ENOMEM; 5199 } 5200 5201 /* Each 32 bits pointed by 'indir' is stored with a lut entry */ 5202 if (indir) 5203 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 5204 vsi->rss_lut_user[i] = (u8)(indir[i]); 5205 else 5206 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE, 5207 vsi->rss_size); 5208 5209 return i40e_config_rss(vsi, seed, vsi->rss_lut_user, 5210 I40E_HLUT_ARRAY_SIZE); 5211 } 5212 5213 /** 5214 * i40e_get_priv_flags - report device private flags 5215 * @dev: network interface device structure 5216 * 5217 * The get string set count and the string set should be matched for each 5218 * flag returned. Add new strings for each flag to the i40e_gstrings_priv_flags 5219 * array. 5220 * 5221 * Returns a u32 bitmap of flags. 5222 **/ 5223 static u32 i40e_get_priv_flags(struct net_device *dev) 5224 { 5225 struct i40e_netdev_priv *np = netdev_priv(dev); 5226 struct i40e_vsi *vsi = np->vsi; 5227 struct i40e_pf *pf = vsi->back; 5228 u32 i, j, ret_flags = 0; 5229 5230 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 5231 const struct i40e_priv_flags *priv_flag; 5232 5233 priv_flag = &i40e_gstrings_priv_flags[i]; 5234 5235 if (test_bit(priv_flag->bitno, pf->flags)) 5236 ret_flags |= BIT(i); 5237 } 5238 5239 if (pf->hw.pf_id != 0) 5240 return ret_flags; 5241 5242 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 5243 const struct i40e_priv_flags *priv_flag; 5244 5245 priv_flag = &i40e_gl_gstrings_priv_flags[j]; 5246 5247 if (test_bit(priv_flag->bitno, pf->flags)) 5248 ret_flags |= BIT(i + j); 5249 } 5250 5251 return ret_flags; 5252 } 5253 5254 /** 5255 * i40e_set_priv_flags - set private flags 5256 * @dev: network interface device structure 5257 * @flags: bit flags to be set 5258 **/ 5259 static int i40e_set_priv_flags(struct net_device *dev, u32 flags) 5260 { 5261 DECLARE_BITMAP(changed_flags, I40E_PF_FLAGS_NBITS); 5262 DECLARE_BITMAP(orig_flags, I40E_PF_FLAGS_NBITS); 5263 DECLARE_BITMAP(new_flags, I40E_PF_FLAGS_NBITS); 5264 struct i40e_netdev_priv *np = netdev_priv(dev); 5265 enum i40e_admin_queue_err adq_err; 5266 struct i40e_vsi *vsi = np->vsi; 5267 struct i40e_pf *pf = vsi->back; 5268 u32 reset_needed = 0; 5269 int status; 5270 u32 i, j; 5271 5272 bitmap_copy(orig_flags, pf->flags, I40E_PF_FLAGS_NBITS); 5273 bitmap_copy(new_flags, pf->flags, I40E_PF_FLAGS_NBITS); 5274 5275 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 5276 const struct i40e_priv_flags *priv_flag; 5277 bool new_val; 5278 5279 priv_flag = &i40e_gstrings_priv_flags[i]; 5280 new_val = (flags & BIT(i)) ? true : false; 5281 5282 /* If this is a read-only flag, it can't be changed */ 5283 if (priv_flag->read_only && 5284 test_bit(priv_flag->bitno, orig_flags) != new_val) 5285 return -EOPNOTSUPP; 5286 5287 if (new_val) 5288 set_bit(priv_flag->bitno, new_flags); 5289 else 5290 clear_bit(priv_flag->bitno, new_flags); 5291 } 5292 5293 if (pf->hw.pf_id != 0) 5294 goto flags_complete; 5295 5296 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 5297 const struct i40e_priv_flags *priv_flag; 5298 bool new_val; 5299 5300 priv_flag = &i40e_gl_gstrings_priv_flags[j]; 5301 new_val = (flags & BIT(i + j)) ? true : false; 5302 5303 /* If this is a read-only flag, it can't be changed */ 5304 if (priv_flag->read_only && 5305 test_bit(priv_flag->bitno, orig_flags) != new_val) 5306 return -EOPNOTSUPP; 5307 5308 if (new_val) 5309 set_bit(priv_flag->bitno, new_flags); 5310 else 5311 clear_bit(priv_flag->bitno, new_flags); 5312 } 5313 5314 flags_complete: 5315 bitmap_xor(changed_flags, pf->flags, orig_flags, I40E_PF_FLAGS_NBITS); 5316 5317 if (test_bit(I40E_FLAG_FW_LLDP_DIS, changed_flags)) 5318 reset_needed = I40E_PF_RESET_AND_REBUILD_FLAG; 5319 5320 if (test_bit(I40E_FLAG_VEB_STATS_ENA, changed_flags) || 5321 test_bit(I40E_FLAG_LEGACY_RX_ENA, changed_flags) || 5322 test_bit(I40E_FLAG_SOURCE_PRUNING_DIS, changed_flags)) 5323 reset_needed = BIT(__I40E_PF_RESET_REQUESTED); 5324 5325 /* Before we finalize any flag changes, we need to perform some 5326 * checks to ensure that the changes are supported and safe. 5327 */ 5328 5329 /* ATR eviction is not supported on all devices */ 5330 if (test_bit(I40E_FLAG_HW_ATR_EVICT_ENA, new_flags) && 5331 !test_bit(I40E_HW_CAP_ATR_EVICT, pf->hw.caps)) 5332 return -EOPNOTSUPP; 5333 5334 /* If the driver detected FW LLDP was disabled on init, this flag could 5335 * be set, however we do not support _changing_ the flag: 5336 * - on XL710 if NPAR is enabled or FW API version < 1.7 5337 * - on X722 with FW API version < 1.6 5338 * There are situations where older FW versions/NPAR enabled PFs could 5339 * disable LLDP, however we _must_ not allow the user to enable/disable 5340 * LLDP with this flag on unsupported FW versions. 5341 */ 5342 if (test_bit(I40E_FLAG_FW_LLDP_DIS, changed_flags) && 5343 !test_bit(I40E_HW_CAP_FW_LLDP_STOPPABLE, pf->hw.caps)) { 5344 dev_warn(&pf->pdev->dev, 5345 "Device does not support changing FW LLDP\n"); 5346 return -EOPNOTSUPP; 5347 } 5348 5349 if (test_bit(I40E_FLAG_RS_FEC, changed_flags) && 5350 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && 5351 pf->hw.device_id != I40E_DEV_ID_25G_B) { 5352 dev_warn(&pf->pdev->dev, 5353 "Device does not support changing FEC configuration\n"); 5354 return -EOPNOTSUPP; 5355 } 5356 5357 if (test_bit(I40E_FLAG_BASE_R_FEC, changed_flags) && 5358 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && 5359 pf->hw.device_id != I40E_DEV_ID_25G_B && 5360 pf->hw.device_id != I40E_DEV_ID_KX_X722) { 5361 dev_warn(&pf->pdev->dev, 5362 "Device does not support changing FEC configuration\n"); 5363 return -EOPNOTSUPP; 5364 } 5365 5366 /* Process any additional changes needed as a result of flag changes. 5367 * The changed_flags value reflects the list of bits that were 5368 * changed in the code above. 5369 */ 5370 5371 /* Flush current ATR settings if ATR was disabled */ 5372 if (test_bit(I40E_FLAG_FD_ATR_ENA, changed_flags) && 5373 !test_bit(I40E_FLAG_FD_ATR_ENA, new_flags)) { 5374 set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state); 5375 set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state); 5376 } 5377 5378 if (test_bit(I40E_FLAG_TRUE_PROMISC_ENA, changed_flags)) { 5379 u16 sw_flags = 0, valid_flags = 0; 5380 int ret; 5381 5382 if (!test_bit(I40E_FLAG_TRUE_PROMISC_ENA, new_flags)) 5383 sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 5384 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 5385 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags, 5386 0, NULL); 5387 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) { 5388 dev_info(&pf->pdev->dev, 5389 "couldn't set switch config bits, err %pe aq_err %s\n", 5390 ERR_PTR(ret), 5391 i40e_aq_str(&pf->hw, 5392 pf->hw.aq.asq_last_status)); 5393 /* not a fatal problem, just keep going */ 5394 } 5395 } 5396 5397 if (test_bit(I40E_FLAG_RS_FEC, changed_flags) || 5398 test_bit(I40E_FLAG_BASE_R_FEC, changed_flags)) { 5399 u8 fec_cfg = 0; 5400 5401 if (test_bit(I40E_FLAG_RS_FEC, new_flags) && 5402 test_bit(I40E_FLAG_BASE_R_FEC, new_flags)) { 5403 fec_cfg = I40E_AQ_SET_FEC_AUTO; 5404 } else if (test_bit(I40E_FLAG_RS_FEC, new_flags)) { 5405 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS | 5406 I40E_AQ_SET_FEC_ABILITY_RS); 5407 } else if (test_bit(I40E_FLAG_BASE_R_FEC, new_flags)) { 5408 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR | 5409 I40E_AQ_SET_FEC_ABILITY_KR); 5410 } 5411 if (i40e_set_fec_cfg(dev, fec_cfg)) 5412 dev_warn(&pf->pdev->dev, "Cannot change FEC config\n"); 5413 } 5414 5415 if (test_bit(I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, changed_flags) && 5416 test_bit(I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENA, orig_flags)) { 5417 dev_err(&pf->pdev->dev, 5418 "Setting link-down-on-close not supported on this port (because total-port-shutdown is enabled)\n"); 5419 return -EOPNOTSUPP; 5420 } 5421 5422 if (test_bit(I40E_FLAG_VF_VLAN_PRUNING_ENA, changed_flags) && 5423 pf->num_alloc_vfs) { 5424 dev_warn(&pf->pdev->dev, 5425 "Changing vf-vlan-pruning flag while VF(s) are active is not supported\n"); 5426 return -EOPNOTSUPP; 5427 } 5428 5429 if (test_bit(I40E_FLAG_LEGACY_RX_ENA, changed_flags) && 5430 I40E_2K_TOO_SMALL_WITH_PADDING) { 5431 dev_warn(&pf->pdev->dev, 5432 "2k Rx buffer is too small to fit standard MTU and skb_shared_info\n"); 5433 return -EOPNOTSUPP; 5434 } 5435 5436 if (test_bit(I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, changed_flags) && 5437 test_bit(I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, new_flags) && 5438 test_bit(I40E_FLAG_MFP_ENA, new_flags)) 5439 dev_warn(&pf->pdev->dev, 5440 "Turning on link-down-on-close flag may affect other partitions\n"); 5441 5442 if (test_bit(I40E_FLAG_FW_LLDP_DIS, changed_flags)) { 5443 if (test_bit(I40E_FLAG_FW_LLDP_DIS, new_flags)) { 5444 #ifdef CONFIG_I40E_DCB 5445 i40e_dcb_sw_default_config(pf); 5446 #endif /* CONFIG_I40E_DCB */ 5447 i40e_aq_cfg_lldp_mib_change_event(&pf->hw, false, NULL); 5448 i40e_aq_stop_lldp(&pf->hw, true, false, NULL); 5449 } else { 5450 status = i40e_aq_start_lldp(&pf->hw, false, NULL); 5451 if (status) { 5452 adq_err = pf->hw.aq.asq_last_status; 5453 switch (adq_err) { 5454 case I40E_AQ_RC_EEXIST: 5455 dev_warn(&pf->pdev->dev, 5456 "FW LLDP agent is already running\n"); 5457 reset_needed = 0; 5458 break; 5459 case I40E_AQ_RC_EPERM: 5460 dev_warn(&pf->pdev->dev, 5461 "Device configuration forbids SW from starting the LLDP agent.\n"); 5462 return -EINVAL; 5463 case I40E_AQ_RC_EAGAIN: 5464 dev_warn(&pf->pdev->dev, 5465 "Stop FW LLDP agent command is still being processed, please try again in a second.\n"); 5466 return -EBUSY; 5467 default: 5468 dev_warn(&pf->pdev->dev, 5469 "Starting FW LLDP agent failed: error: %pe, %s\n", 5470 ERR_PTR(status), 5471 i40e_aq_str(&pf->hw, 5472 adq_err)); 5473 return -EINVAL; 5474 } 5475 } 5476 } 5477 } 5478 5479 /* Now that we've checked to ensure that the new flags are valid, load 5480 * them into place. Since we only modify flags either (a) during 5481 * initialization or (b) while holding the RTNL lock, we don't need 5482 * anything fancy here. 5483 */ 5484 bitmap_copy(pf->flags, new_flags, I40E_PF_FLAGS_NBITS); 5485 5486 /* Issue reset to cause things to take effect, as additional bits 5487 * are added we will need to create a mask of bits requiring reset 5488 */ 5489 if (reset_needed) 5490 i40e_do_reset(pf, reset_needed, true); 5491 5492 return 0; 5493 } 5494 5495 /** 5496 * i40e_get_module_info - get (Q)SFP+ module type info 5497 * @netdev: network interface device structure 5498 * @modinfo: module EEPROM size and layout information structure 5499 **/ 5500 static int i40e_get_module_info(struct net_device *netdev, 5501 struct ethtool_modinfo *modinfo) 5502 { 5503 struct i40e_netdev_priv *np = netdev_priv(netdev); 5504 struct i40e_vsi *vsi = np->vsi; 5505 struct i40e_pf *pf = vsi->back; 5506 struct i40e_hw *hw = &pf->hw; 5507 u32 sff8472_comp = 0; 5508 u32 sff8472_swap = 0; 5509 u32 sff8636_rev = 0; 5510 u32 type = 0; 5511 int status; 5512 5513 /* Check if firmware supports reading module EEPROM. */ 5514 if (!test_bit(I40E_HW_CAP_AQ_PHY_ACCESS, hw->caps)) { 5515 netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n"); 5516 return -EINVAL; 5517 } 5518 5519 status = i40e_update_link_info(hw); 5520 if (status) 5521 return -EIO; 5522 5523 if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) { 5524 netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n"); 5525 return -EINVAL; 5526 } 5527 5528 type = hw->phy.link_info.module_type[0]; 5529 5530 switch (type) { 5531 case I40E_MODULE_TYPE_SFP: 5532 status = i40e_aq_get_phy_register(hw, 5533 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5534 I40E_I2C_EEPROM_DEV_ADDR, true, 5535 I40E_MODULE_SFF_8472_COMP, 5536 &sff8472_comp, NULL); 5537 if (status) 5538 return -EIO; 5539 5540 status = i40e_aq_get_phy_register(hw, 5541 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5542 I40E_I2C_EEPROM_DEV_ADDR, true, 5543 I40E_MODULE_SFF_8472_SWAP, 5544 &sff8472_swap, NULL); 5545 if (status) 5546 return -EIO; 5547 5548 /* Check if the module requires address swap to access 5549 * the other EEPROM memory page. 5550 */ 5551 if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) { 5552 netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n"); 5553 modinfo->type = ETH_MODULE_SFF_8079; 5554 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5555 } else if (sff8472_comp == 0x00) { 5556 /* Module is not SFF-8472 compliant */ 5557 modinfo->type = ETH_MODULE_SFF_8079; 5558 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5559 } else if (!(sff8472_swap & I40E_MODULE_SFF_DDM_IMPLEMENTED)) { 5560 /* Module is SFF-8472 compliant but doesn't implement 5561 * Digital Diagnostic Monitoring (DDM). 5562 */ 5563 modinfo->type = ETH_MODULE_SFF_8079; 5564 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5565 } else { 5566 modinfo->type = ETH_MODULE_SFF_8472; 5567 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; 5568 } 5569 break; 5570 case I40E_MODULE_TYPE_QSFP_PLUS: 5571 /* Read from memory page 0. */ 5572 status = i40e_aq_get_phy_register(hw, 5573 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5574 0, true, 5575 I40E_MODULE_REVISION_ADDR, 5576 &sff8636_rev, NULL); 5577 if (status) 5578 return -EIO; 5579 /* Determine revision compliance byte */ 5580 if (sff8636_rev > 0x02) { 5581 /* Module is SFF-8636 compliant */ 5582 modinfo->type = ETH_MODULE_SFF_8636; 5583 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5584 } else { 5585 modinfo->type = ETH_MODULE_SFF_8436; 5586 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5587 } 5588 break; 5589 case I40E_MODULE_TYPE_QSFP28: 5590 modinfo->type = ETH_MODULE_SFF_8636; 5591 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5592 break; 5593 default: 5594 netdev_dbg(vsi->netdev, "SFP module type unrecognized or no SFP connector used.\n"); 5595 return -EOPNOTSUPP; 5596 } 5597 return 0; 5598 } 5599 5600 /** 5601 * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents 5602 * @netdev: network interface device structure 5603 * @ee: EEPROM dump request structure 5604 * @data: buffer to be filled with EEPROM contents 5605 **/ 5606 static int i40e_get_module_eeprom(struct net_device *netdev, 5607 struct ethtool_eeprom *ee, 5608 u8 *data) 5609 { 5610 struct i40e_netdev_priv *np = netdev_priv(netdev); 5611 struct i40e_vsi *vsi = np->vsi; 5612 struct i40e_pf *pf = vsi->back; 5613 struct i40e_hw *hw = &pf->hw; 5614 bool is_sfp = false; 5615 u32 value = 0; 5616 int status; 5617 int i; 5618 5619 if (!ee || !ee->len || !data) 5620 return -EINVAL; 5621 5622 if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP) 5623 is_sfp = true; 5624 5625 for (i = 0; i < ee->len; i++) { 5626 u32 offset = i + ee->offset; 5627 u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0; 5628 5629 /* Check if we need to access the other memory page */ 5630 if (is_sfp) { 5631 if (offset >= ETH_MODULE_SFF_8079_LEN) { 5632 offset -= ETH_MODULE_SFF_8079_LEN; 5633 addr = I40E_I2C_EEPROM_DEV_ADDR2; 5634 } 5635 } else { 5636 while (offset >= ETH_MODULE_SFF_8436_LEN) { 5637 /* Compute memory page number and offset. */ 5638 offset -= ETH_MODULE_SFF_8436_LEN / 2; 5639 addr++; 5640 } 5641 } 5642 5643 status = i40e_aq_get_phy_register(hw, 5644 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5645 addr, true, offset, &value, NULL); 5646 if (status) 5647 return -EIO; 5648 data[i] = value; 5649 } 5650 return 0; 5651 } 5652 5653 static int i40e_get_eee(struct net_device *netdev, struct ethtool_eee *edata) 5654 { 5655 struct i40e_netdev_priv *np = netdev_priv(netdev); 5656 struct i40e_aq_get_phy_abilities_resp phy_cfg; 5657 struct i40e_vsi *vsi = np->vsi; 5658 struct i40e_pf *pf = vsi->back; 5659 struct i40e_hw *hw = &pf->hw; 5660 int status = 0; 5661 5662 /* Get initial PHY capabilities */ 5663 status = i40e_aq_get_phy_capabilities(hw, false, true, &phy_cfg, NULL); 5664 if (status) 5665 return -EAGAIN; 5666 5667 /* Check whether NIC configuration is compatible with Energy Efficient 5668 * Ethernet (EEE) mode. 5669 */ 5670 if (phy_cfg.eee_capability == 0) 5671 return -EOPNOTSUPP; 5672 5673 edata->supported = SUPPORTED_Autoneg; 5674 edata->lp_advertised = edata->supported; 5675 5676 /* Get current configuration */ 5677 status = i40e_aq_get_phy_capabilities(hw, false, false, &phy_cfg, NULL); 5678 if (status) 5679 return -EAGAIN; 5680 5681 edata->advertised = phy_cfg.eee_capability ? SUPPORTED_Autoneg : 0U; 5682 edata->eee_enabled = !!edata->advertised; 5683 edata->tx_lpi_enabled = pf->stats.tx_lpi_status; 5684 5685 edata->eee_active = pf->stats.tx_lpi_status && pf->stats.rx_lpi_status; 5686 5687 return 0; 5688 } 5689 5690 static int i40e_is_eee_param_supported(struct net_device *netdev, 5691 struct ethtool_eee *edata) 5692 { 5693 struct i40e_netdev_priv *np = netdev_priv(netdev); 5694 struct i40e_vsi *vsi = np->vsi; 5695 struct i40e_pf *pf = vsi->back; 5696 struct i40e_ethtool_not_used { 5697 u32 value; 5698 const char *name; 5699 } param[] = { 5700 {edata->advertised & ~SUPPORTED_Autoneg, "advertise"}, 5701 {edata->tx_lpi_timer, "tx-timer"}, 5702 {edata->tx_lpi_enabled != pf->stats.tx_lpi_status, "tx-lpi"} 5703 }; 5704 int i; 5705 5706 for (i = 0; i < ARRAY_SIZE(param); i++) { 5707 if (param[i].value) { 5708 netdev_info(netdev, 5709 "EEE setting %s not supported\n", 5710 param[i].name); 5711 return -EOPNOTSUPP; 5712 } 5713 } 5714 5715 return 0; 5716 } 5717 5718 static int i40e_set_eee(struct net_device *netdev, struct ethtool_eee *edata) 5719 { 5720 struct i40e_netdev_priv *np = netdev_priv(netdev); 5721 struct i40e_aq_get_phy_abilities_resp abilities; 5722 struct i40e_aq_set_phy_config config; 5723 struct i40e_vsi *vsi = np->vsi; 5724 struct i40e_pf *pf = vsi->back; 5725 struct i40e_hw *hw = &pf->hw; 5726 __le16 eee_capability; 5727 int status = 0; 5728 5729 /* Deny parameters we don't support */ 5730 if (i40e_is_eee_param_supported(netdev, edata)) 5731 return -EOPNOTSUPP; 5732 5733 /* Get initial PHY capabilities */ 5734 status = i40e_aq_get_phy_capabilities(hw, false, true, &abilities, 5735 NULL); 5736 if (status) 5737 return -EAGAIN; 5738 5739 /* Check whether NIC configuration is compatible with Energy Efficient 5740 * Ethernet (EEE) mode. 5741 */ 5742 if (abilities.eee_capability == 0) 5743 return -EOPNOTSUPP; 5744 5745 /* Cache initial EEE capability */ 5746 eee_capability = abilities.eee_capability; 5747 5748 /* Get current PHY configuration */ 5749 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 5750 NULL); 5751 if (status) 5752 return -EAGAIN; 5753 5754 /* Cache current PHY configuration */ 5755 config.phy_type = abilities.phy_type; 5756 config.phy_type_ext = abilities.phy_type_ext; 5757 config.link_speed = abilities.link_speed; 5758 config.abilities = abilities.abilities | 5759 I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 5760 config.eeer = abilities.eeer_val; 5761 config.low_power_ctrl = abilities.d3_lpan; 5762 config.fec_config = abilities.fec_cfg_curr_mod_ext_info & 5763 I40E_AQ_PHY_FEC_CONFIG_MASK; 5764 5765 /* Set desired EEE state */ 5766 if (edata->eee_enabled) { 5767 config.eee_capability = eee_capability; 5768 config.eeer |= cpu_to_le32(I40E_PRTPM_EEER_TX_LPI_EN_MASK); 5769 } else { 5770 config.eee_capability = 0; 5771 config.eeer &= cpu_to_le32(~I40E_PRTPM_EEER_TX_LPI_EN_MASK); 5772 } 5773 5774 /* Apply modified PHY configuration */ 5775 status = i40e_aq_set_phy_config(hw, &config, NULL); 5776 if (status) 5777 return -EAGAIN; 5778 5779 return 0; 5780 } 5781 5782 static const struct ethtool_ops i40e_ethtool_recovery_mode_ops = { 5783 .get_drvinfo = i40e_get_drvinfo, 5784 .set_eeprom = i40e_set_eeprom, 5785 .get_eeprom_len = i40e_get_eeprom_len, 5786 .get_eeprom = i40e_get_eeprom, 5787 }; 5788 5789 static const struct ethtool_ops i40e_ethtool_ops = { 5790 .supported_coalesce_params = ETHTOOL_COALESCE_USECS | 5791 ETHTOOL_COALESCE_MAX_FRAMES_IRQ | 5792 ETHTOOL_COALESCE_USE_ADAPTIVE | 5793 ETHTOOL_COALESCE_RX_USECS_HIGH | 5794 ETHTOOL_COALESCE_TX_USECS_HIGH, 5795 .get_drvinfo = i40e_get_drvinfo, 5796 .get_regs_len = i40e_get_regs_len, 5797 .get_regs = i40e_get_regs, 5798 .nway_reset = i40e_nway_reset, 5799 .get_link = ethtool_op_get_link, 5800 .get_wol = i40e_get_wol, 5801 .set_wol = i40e_set_wol, 5802 .set_eeprom = i40e_set_eeprom, 5803 .get_eeprom_len = i40e_get_eeprom_len, 5804 .get_eeprom = i40e_get_eeprom, 5805 .get_ringparam = i40e_get_ringparam, 5806 .set_ringparam = i40e_set_ringparam, 5807 .get_pauseparam = i40e_get_pauseparam, 5808 .set_pauseparam = i40e_set_pauseparam, 5809 .get_msglevel = i40e_get_msglevel, 5810 .set_msglevel = i40e_set_msglevel, 5811 .get_rxnfc = i40e_get_rxnfc, 5812 .set_rxnfc = i40e_set_rxnfc, 5813 .self_test = i40e_diag_test, 5814 .get_strings = i40e_get_strings, 5815 .get_eee = i40e_get_eee, 5816 .set_eee = i40e_set_eee, 5817 .set_phys_id = i40e_set_phys_id, 5818 .get_sset_count = i40e_get_sset_count, 5819 .get_ethtool_stats = i40e_get_ethtool_stats, 5820 .get_coalesce = i40e_get_coalesce, 5821 .set_coalesce = i40e_set_coalesce, 5822 .get_rxfh_key_size = i40e_get_rxfh_key_size, 5823 .get_rxfh_indir_size = i40e_get_rxfh_indir_size, 5824 .get_rxfh = i40e_get_rxfh, 5825 .set_rxfh = i40e_set_rxfh, 5826 .get_channels = i40e_get_channels, 5827 .set_channels = i40e_set_channels, 5828 .get_module_info = i40e_get_module_info, 5829 .get_module_eeprom = i40e_get_module_eeprom, 5830 .get_ts_info = i40e_get_ts_info, 5831 .get_priv_flags = i40e_get_priv_flags, 5832 .set_priv_flags = i40e_set_priv_flags, 5833 .get_per_queue_coalesce = i40e_get_per_queue_coalesce, 5834 .set_per_queue_coalesce = i40e_set_per_queue_coalesce, 5835 .get_link_ksettings = i40e_get_link_ksettings, 5836 .set_link_ksettings = i40e_set_link_ksettings, 5837 .get_fecparam = i40e_get_fec_param, 5838 .set_fecparam = i40e_set_fec_param, 5839 .flash_device = i40e_ddp_flash, 5840 }; 5841 5842 void i40e_set_ethtool_ops(struct net_device *netdev) 5843 { 5844 struct i40e_netdev_priv *np = netdev_priv(netdev); 5845 struct i40e_pf *pf = np->vsi->back; 5846 5847 if (!test_bit(__I40E_RECOVERY_MODE, pf->state)) 5848 netdev->ethtool_ops = &i40e_ethtool_ops; 5849 else 5850 netdev->ethtool_ops = &i40e_ethtool_recovery_mode_ops; 5851 } 5852