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->type != I40E_VSI_MAIN) 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->type != I40E_VSI_MAIN) 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 = FIELD_GET(I40E_GLPCI_LBARCTRL_FL_SIZE_MASK, 1956 rd32(hw, I40E_GLPCI_LBARCTRL)); 1957 /* register returns value in power of 2, 64Kbyte chunks. */ 1958 val = (64 * 1024) * BIT(val); 1959 return val; 1960 } 1961 1962 static int i40e_set_eeprom(struct net_device *netdev, 1963 struct ethtool_eeprom *eeprom, u8 *bytes) 1964 { 1965 struct i40e_netdev_priv *np = netdev_priv(netdev); 1966 struct i40e_hw *hw = &np->vsi->back->hw; 1967 struct i40e_pf *pf = np->vsi->back; 1968 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1969 int ret_val = 0; 1970 int errno = 0; 1971 u32 magic; 1972 1973 /* normal ethtool set_eeprom is not supported */ 1974 magic = hw->vendor_id | (hw->device_id << 16); 1975 if (eeprom->magic == magic) 1976 errno = -EOPNOTSUPP; 1977 /* check for NVMUpdate access method */ 1978 else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id) 1979 errno = -EINVAL; 1980 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 1981 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 1982 errno = -EBUSY; 1983 else 1984 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1985 1986 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1987 dev_info(&pf->pdev->dev, 1988 "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1989 ret_val, hw->aq.asq_last_status, errno, 1990 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1991 cmd->offset, cmd->data_size); 1992 1993 return errno; 1994 } 1995 1996 static void i40e_get_drvinfo(struct net_device *netdev, 1997 struct ethtool_drvinfo *drvinfo) 1998 { 1999 struct i40e_netdev_priv *np = netdev_priv(netdev); 2000 struct i40e_vsi *vsi = np->vsi; 2001 struct i40e_pf *pf = vsi->back; 2002 2003 strscpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver)); 2004 i40e_nvm_version_str(&pf->hw, drvinfo->fw_version, 2005 sizeof(drvinfo->fw_version)); 2006 strscpy(drvinfo->bus_info, pci_name(pf->pdev), 2007 sizeof(drvinfo->bus_info)); 2008 drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN; 2009 if (pf->hw.pf_id == 0) 2010 drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN; 2011 } 2012 2013 static u32 i40e_get_max_num_descriptors(struct i40e_pf *pf) 2014 { 2015 struct i40e_hw *hw = &pf->hw; 2016 2017 switch (hw->mac.type) { 2018 case I40E_MAC_XL710: 2019 return I40E_MAX_NUM_DESCRIPTORS_XL710; 2020 default: 2021 return I40E_MAX_NUM_DESCRIPTORS; 2022 } 2023 } 2024 2025 static void i40e_get_ringparam(struct net_device *netdev, 2026 struct ethtool_ringparam *ring, 2027 struct kernel_ethtool_ringparam *kernel_ring, 2028 struct netlink_ext_ack *extack) 2029 { 2030 struct i40e_netdev_priv *np = netdev_priv(netdev); 2031 struct i40e_pf *pf = np->vsi->back; 2032 struct i40e_vsi *vsi = i40e_pf_get_main_vsi(pf); 2033 2034 ring->rx_max_pending = i40e_get_max_num_descriptors(pf); 2035 ring->tx_max_pending = i40e_get_max_num_descriptors(pf); 2036 ring->rx_mini_max_pending = 0; 2037 ring->rx_jumbo_max_pending = 0; 2038 ring->rx_pending = vsi->rx_rings[0]->count; 2039 ring->tx_pending = vsi->tx_rings[0]->count; 2040 ring->rx_mini_pending = 0; 2041 ring->rx_jumbo_pending = 0; 2042 } 2043 2044 static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index) 2045 { 2046 if (i40e_enabled_xdp_vsi(vsi)) { 2047 return index < vsi->num_queue_pairs || 2048 (index >= vsi->alloc_queue_pairs && 2049 index < vsi->alloc_queue_pairs + vsi->num_queue_pairs); 2050 } 2051 2052 return index < vsi->num_queue_pairs; 2053 } 2054 2055 static int i40e_set_ringparam(struct net_device *netdev, 2056 struct ethtool_ringparam *ring, 2057 struct kernel_ethtool_ringparam *kernel_ring, 2058 struct netlink_ext_ack *extack) 2059 { 2060 u32 new_rx_count, new_tx_count, max_num_descriptors; 2061 struct i40e_ring *tx_rings = NULL, *rx_rings = NULL; 2062 struct i40e_netdev_priv *np = netdev_priv(netdev); 2063 struct i40e_hw *hw = &np->vsi->back->hw; 2064 struct i40e_vsi *vsi = np->vsi; 2065 struct i40e_pf *pf = vsi->back; 2066 u16 tx_alloc_queue_pairs; 2067 int timeout = 50; 2068 int i, err = 0; 2069 2070 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) 2071 return -EINVAL; 2072 2073 max_num_descriptors = i40e_get_max_num_descriptors(pf); 2074 if (ring->tx_pending > max_num_descriptors || 2075 ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS || 2076 ring->rx_pending > max_num_descriptors || 2077 ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) { 2078 netdev_info(netdev, 2079 "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n", 2080 ring->tx_pending, ring->rx_pending, 2081 I40E_MIN_NUM_DESCRIPTORS, max_num_descriptors); 2082 return -EINVAL; 2083 } 2084 2085 new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 2086 new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 2087 2088 /* if nothing to do return success */ 2089 if ((new_tx_count == vsi->tx_rings[0]->count) && 2090 (new_rx_count == vsi->rx_rings[0]->count)) 2091 return 0; 2092 2093 /* If there is a AF_XDP page pool attached to any of Rx rings, 2094 * disallow changing the number of descriptors -- regardless 2095 * if the netdev is running or not. 2096 */ 2097 if (i40e_xsk_any_rx_ring_enabled(vsi)) 2098 return -EBUSY; 2099 2100 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { 2101 timeout--; 2102 if (!timeout) 2103 return -EBUSY; 2104 usleep_range(1000, 2000); 2105 } 2106 2107 if (!netif_running(vsi->netdev)) { 2108 /* simple case - set for the next time the netdev is started */ 2109 for (i = 0; i < vsi->num_queue_pairs; i++) { 2110 vsi->tx_rings[i]->count = new_tx_count; 2111 vsi->rx_rings[i]->count = new_rx_count; 2112 if (i40e_enabled_xdp_vsi(vsi)) 2113 vsi->xdp_rings[i]->count = new_tx_count; 2114 } 2115 vsi->num_tx_desc = new_tx_count; 2116 vsi->num_rx_desc = new_rx_count; 2117 goto done; 2118 } 2119 2120 /* We can't just free everything and then setup again, 2121 * because the ISRs in MSI-X mode get passed pointers 2122 * to the Tx and Rx ring structs. 2123 */ 2124 2125 /* alloc updated Tx and XDP Tx resources */ 2126 tx_alloc_queue_pairs = vsi->alloc_queue_pairs * 2127 (i40e_enabled_xdp_vsi(vsi) ? 2 : 1); 2128 if (new_tx_count != vsi->tx_rings[0]->count) { 2129 netdev_info(netdev, 2130 "Changing Tx descriptor count from %d to %d.\n", 2131 vsi->tx_rings[0]->count, new_tx_count); 2132 tx_rings = kcalloc(tx_alloc_queue_pairs, 2133 sizeof(struct i40e_ring), GFP_KERNEL); 2134 if (!tx_rings) { 2135 err = -ENOMEM; 2136 goto done; 2137 } 2138 2139 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2140 if (!i40e_active_tx_ring_index(vsi, i)) 2141 continue; 2142 2143 tx_rings[i] = *vsi->tx_rings[i]; 2144 tx_rings[i].count = new_tx_count; 2145 /* the desc and bi pointers will be reallocated in the 2146 * setup call 2147 */ 2148 tx_rings[i].desc = NULL; 2149 tx_rings[i].rx_bi = NULL; 2150 err = i40e_setup_tx_descriptors(&tx_rings[i]); 2151 if (err) { 2152 while (i) { 2153 i--; 2154 if (!i40e_active_tx_ring_index(vsi, i)) 2155 continue; 2156 i40e_free_tx_resources(&tx_rings[i]); 2157 } 2158 kfree(tx_rings); 2159 tx_rings = NULL; 2160 2161 goto done; 2162 } 2163 } 2164 } 2165 2166 /* alloc updated Rx resources */ 2167 if (new_rx_count != vsi->rx_rings[0]->count) { 2168 netdev_info(netdev, 2169 "Changing Rx descriptor count from %d to %d\n", 2170 vsi->rx_rings[0]->count, new_rx_count); 2171 rx_rings = kcalloc(vsi->alloc_queue_pairs, 2172 sizeof(struct i40e_ring), GFP_KERNEL); 2173 if (!rx_rings) { 2174 err = -ENOMEM; 2175 goto free_tx; 2176 } 2177 2178 for (i = 0; i < vsi->num_queue_pairs; i++) { 2179 u16 unused; 2180 2181 /* clone ring and setup updated count */ 2182 rx_rings[i] = *vsi->rx_rings[i]; 2183 rx_rings[i].count = new_rx_count; 2184 /* the desc and bi pointers will be reallocated in the 2185 * setup call 2186 */ 2187 rx_rings[i].desc = NULL; 2188 rx_rings[i].rx_bi = NULL; 2189 /* Clear cloned XDP RX-queue info before setup call */ 2190 memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq)); 2191 /* this is to allow wr32 to have something to write to 2192 * during early allocation of Rx buffers 2193 */ 2194 rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS; 2195 err = i40e_setup_rx_descriptors(&rx_rings[i]); 2196 if (err) 2197 goto rx_unwind; 2198 2199 /* now allocate the Rx buffers to make sure the OS 2200 * has enough memory, any failure here means abort 2201 */ 2202 unused = I40E_DESC_UNUSED(&rx_rings[i]); 2203 err = i40e_alloc_rx_buffers(&rx_rings[i], unused); 2204 rx_unwind: 2205 if (err) { 2206 do { 2207 i40e_free_rx_resources(&rx_rings[i]); 2208 } while (i--); 2209 kfree(rx_rings); 2210 rx_rings = NULL; 2211 2212 goto free_tx; 2213 } 2214 } 2215 } 2216 2217 /* Bring interface down, copy in the new ring info, 2218 * then restore the interface 2219 */ 2220 i40e_down(vsi); 2221 2222 if (tx_rings) { 2223 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2224 if (i40e_active_tx_ring_index(vsi, i)) { 2225 i40e_free_tx_resources(vsi->tx_rings[i]); 2226 *vsi->tx_rings[i] = tx_rings[i]; 2227 } 2228 } 2229 kfree(tx_rings); 2230 tx_rings = NULL; 2231 } 2232 2233 if (rx_rings) { 2234 for (i = 0; i < vsi->num_queue_pairs; i++) { 2235 i40e_free_rx_resources(vsi->rx_rings[i]); 2236 /* get the real tail offset */ 2237 rx_rings[i].tail = vsi->rx_rings[i]->tail; 2238 /* this is to fake out the allocation routine 2239 * into thinking it has to realloc everything 2240 * but the recycling logic will let us re-use 2241 * the buffers allocated above 2242 */ 2243 rx_rings[i].next_to_use = 0; 2244 rx_rings[i].next_to_clean = 0; 2245 rx_rings[i].next_to_alloc = 0; 2246 /* do a struct copy */ 2247 *vsi->rx_rings[i] = rx_rings[i]; 2248 } 2249 kfree(rx_rings); 2250 rx_rings = NULL; 2251 } 2252 2253 vsi->num_tx_desc = new_tx_count; 2254 vsi->num_rx_desc = new_rx_count; 2255 i40e_up(vsi); 2256 2257 free_tx: 2258 /* error cleanup if the Rx allocations failed after getting Tx */ 2259 if (tx_rings) { 2260 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2261 if (i40e_active_tx_ring_index(vsi, i)) 2262 i40e_free_tx_resources(vsi->tx_rings[i]); 2263 } 2264 kfree(tx_rings); 2265 tx_rings = NULL; 2266 } 2267 2268 done: 2269 clear_bit(__I40E_CONFIG_BUSY, pf->state); 2270 2271 return err; 2272 } 2273 2274 /** 2275 * i40e_get_stats_count - return the stats count for a device 2276 * @netdev: the netdev to return the count for 2277 * 2278 * Returns the total number of statistics for this netdev. Note that even 2279 * though this is a function, it is required that the count for a specific 2280 * netdev must never change. Basing the count on static values such as the 2281 * maximum number of queues or the device type is ok. However, the API for 2282 * obtaining stats is *not* safe against changes based on non-static 2283 * values such as the *current* number of queues, or runtime flags. 2284 * 2285 * If a statistic is not always enabled, return it as part of the count 2286 * anyways, always return its string, and report its value as zero. 2287 **/ 2288 static int i40e_get_stats_count(struct net_device *netdev) 2289 { 2290 struct i40e_netdev_priv *np = netdev_priv(netdev); 2291 struct i40e_vsi *vsi = np->vsi; 2292 struct i40e_pf *pf = vsi->back; 2293 int stats_len; 2294 2295 if (vsi->type == I40E_VSI_MAIN && pf->hw.partition_id == 1) 2296 stats_len = I40E_PF_STATS_LEN; 2297 else 2298 stats_len = I40E_VSI_STATS_LEN; 2299 2300 /* The number of stats reported for a given net_device must remain 2301 * constant throughout the life of that device. 2302 * 2303 * This is because the API for obtaining the size, strings, and stats 2304 * is spread out over three separate ethtool ioctls. There is no safe 2305 * way to lock the number of stats across these calls, so we must 2306 * assume that they will never change. 2307 * 2308 * Due to this, we report the maximum number of queues, even if not 2309 * every queue is currently configured. Since we always allocate 2310 * queues in pairs, we'll just use netdev->num_tx_queues * 2. This 2311 * works because the num_tx_queues is set at device creation and never 2312 * changes. 2313 */ 2314 stats_len += I40E_QUEUE_STATS_LEN * 2 * netdev->num_tx_queues; 2315 2316 return stats_len; 2317 } 2318 2319 static int i40e_get_sset_count(struct net_device *netdev, int sset) 2320 { 2321 struct i40e_netdev_priv *np = netdev_priv(netdev); 2322 struct i40e_vsi *vsi = np->vsi; 2323 struct i40e_pf *pf = vsi->back; 2324 2325 switch (sset) { 2326 case ETH_SS_TEST: 2327 return I40E_TEST_LEN; 2328 case ETH_SS_STATS: 2329 return i40e_get_stats_count(netdev); 2330 case ETH_SS_PRIV_FLAGS: 2331 return I40E_PRIV_FLAGS_STR_LEN + 2332 (pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0); 2333 default: 2334 return -EOPNOTSUPP; 2335 } 2336 } 2337 2338 /** 2339 * i40e_get_veb_tc_stats - copy VEB TC statistics to formatted structure 2340 * @tc: the TC statistics in VEB structure (veb->tc_stats) 2341 * @i: the index of traffic class in (veb->tc_stats) structure to copy 2342 * 2343 * Copy VEB TC statistics from structure of arrays (veb->tc_stats) to 2344 * one dimensional structure i40e_cp_veb_tc_stats. 2345 * Produce formatted i40e_cp_veb_tc_stats structure of the VEB TC 2346 * statistics for the given TC. 2347 **/ 2348 static struct i40e_cp_veb_tc_stats 2349 i40e_get_veb_tc_stats(struct i40e_veb_tc_stats *tc, unsigned int i) 2350 { 2351 struct i40e_cp_veb_tc_stats veb_tc = { 2352 .tc_rx_packets = tc->tc_rx_packets[i], 2353 .tc_rx_bytes = tc->tc_rx_bytes[i], 2354 .tc_tx_packets = tc->tc_tx_packets[i], 2355 .tc_tx_bytes = tc->tc_tx_bytes[i], 2356 }; 2357 2358 return veb_tc; 2359 } 2360 2361 /** 2362 * i40e_get_pfc_stats - copy HW PFC statistics to formatted structure 2363 * @pf: the PF device structure 2364 * @i: the priority value to copy 2365 * 2366 * The PFC stats are found as arrays in pf->stats, which is not easy to pass 2367 * into i40e_add_ethtool_stats. Produce a formatted i40e_pfc_stats structure 2368 * of the PFC stats for the given priority. 2369 **/ 2370 static inline struct i40e_pfc_stats 2371 i40e_get_pfc_stats(struct i40e_pf *pf, unsigned int i) 2372 { 2373 #define I40E_GET_PFC_STAT(stat, priority) \ 2374 .stat = pf->stats.stat[priority] 2375 2376 struct i40e_pfc_stats pfc = { 2377 I40E_GET_PFC_STAT(priority_xon_rx, i), 2378 I40E_GET_PFC_STAT(priority_xoff_rx, i), 2379 I40E_GET_PFC_STAT(priority_xon_tx, i), 2380 I40E_GET_PFC_STAT(priority_xoff_tx, i), 2381 I40E_GET_PFC_STAT(priority_xon_2_xoff, i), 2382 }; 2383 return pfc; 2384 } 2385 2386 /** 2387 * i40e_get_ethtool_stats - copy stat values into supplied buffer 2388 * @netdev: the netdev to collect stats for 2389 * @stats: ethtool stats command structure 2390 * @data: ethtool supplied buffer 2391 * 2392 * Copy the stats values for this netdev into the buffer. Expects data to be 2393 * pre-allocated to the size returned by i40e_get_stats_count.. Note that all 2394 * statistics must be copied in a static order, and the count must not change 2395 * for a given netdev. See i40e_get_stats_count for more details. 2396 * 2397 * If a statistic is not currently valid (such as a disabled queue), this 2398 * function reports its value as zero. 2399 **/ 2400 static void i40e_get_ethtool_stats(struct net_device *netdev, 2401 struct ethtool_stats *stats, u64 *data) 2402 { 2403 struct i40e_netdev_priv *np = netdev_priv(netdev); 2404 struct i40e_vsi *vsi = np->vsi; 2405 struct i40e_pf *pf = vsi->back; 2406 struct i40e_veb *veb = NULL; 2407 unsigned int i; 2408 bool veb_stats; 2409 u64 *p = data; 2410 2411 i40e_update_stats(vsi); 2412 2413 i40e_add_ethtool_stats(&data, i40e_get_vsi_stats_struct(vsi), 2414 i40e_gstrings_net_stats); 2415 2416 i40e_add_ethtool_stats(&data, vsi, i40e_gstrings_misc_stats); 2417 2418 rcu_read_lock(); 2419 for (i = 0; i < netdev->num_tx_queues; i++) { 2420 i40e_add_queue_stats(&data, READ_ONCE(vsi->tx_rings[i])); 2421 i40e_add_queue_stats(&data, READ_ONCE(vsi->rx_rings[i])); 2422 } 2423 rcu_read_unlock(); 2424 2425 if (vsi->type != I40E_VSI_MAIN || pf->hw.partition_id != 1) 2426 goto check_data_pointer; 2427 2428 veb = i40e_pf_get_main_veb(pf); 2429 veb_stats = veb && test_bit(I40E_FLAG_VEB_STATS_ENA, pf->flags); 2430 2431 if (veb_stats) 2432 i40e_update_veb_stats(veb); 2433 2434 /* If veb stats aren't enabled, pass NULL instead of the veb so that 2435 * we initialize stats to zero and update the data pointer 2436 * intelligently 2437 */ 2438 i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL, 2439 i40e_gstrings_veb_stats); 2440 2441 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) 2442 if (veb_stats) { 2443 struct i40e_cp_veb_tc_stats veb_tc = 2444 i40e_get_veb_tc_stats(&veb->tc_stats, i); 2445 2446 i40e_add_ethtool_stats(&data, &veb_tc, 2447 i40e_gstrings_veb_tc_stats); 2448 } else { 2449 i40e_add_ethtool_stats(&data, NULL, 2450 i40e_gstrings_veb_tc_stats); 2451 } 2452 2453 i40e_add_ethtool_stats(&data, pf, i40e_gstrings_stats); 2454 2455 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { 2456 struct i40e_pfc_stats pfc = i40e_get_pfc_stats(pf, i); 2457 2458 i40e_add_ethtool_stats(&data, &pfc, i40e_gstrings_pfc_stats); 2459 } 2460 2461 check_data_pointer: 2462 WARN_ONCE(data - p != i40e_get_stats_count(netdev), 2463 "ethtool stats count mismatch!"); 2464 } 2465 2466 /** 2467 * i40e_get_stat_strings - copy stat strings into supplied buffer 2468 * @netdev: the netdev to collect strings for 2469 * @data: supplied buffer to copy strings into 2470 * 2471 * Copy the strings related to stats for this netdev. Expects data to be 2472 * pre-allocated with the size reported by i40e_get_stats_count. Note that the 2473 * strings must be copied in a static order and the total count must not 2474 * change for a given netdev. See i40e_get_stats_count for more details. 2475 **/ 2476 static void i40e_get_stat_strings(struct net_device *netdev, u8 *data) 2477 { 2478 struct i40e_netdev_priv *np = netdev_priv(netdev); 2479 struct i40e_vsi *vsi = np->vsi; 2480 struct i40e_pf *pf = vsi->back; 2481 unsigned int i; 2482 u8 *p = data; 2483 2484 i40e_add_stat_strings(&data, i40e_gstrings_net_stats); 2485 2486 i40e_add_stat_strings(&data, i40e_gstrings_misc_stats); 2487 2488 for (i = 0; i < netdev->num_tx_queues; i++) { 2489 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, 2490 "tx", i); 2491 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, 2492 "rx", i); 2493 } 2494 2495 if (vsi->type != I40E_VSI_MAIN || pf->hw.partition_id != 1) 2496 goto check_data_pointer; 2497 2498 i40e_add_stat_strings(&data, i40e_gstrings_veb_stats); 2499 2500 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) 2501 i40e_add_stat_strings(&data, i40e_gstrings_veb_tc_stats, i); 2502 2503 i40e_add_stat_strings(&data, i40e_gstrings_stats); 2504 2505 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) 2506 i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i); 2507 2508 check_data_pointer: 2509 WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN, 2510 "stat strings count mismatch!"); 2511 } 2512 2513 static void i40e_get_priv_flag_strings(struct net_device *netdev, u8 *data) 2514 { 2515 struct i40e_netdev_priv *np = netdev_priv(netdev); 2516 struct i40e_vsi *vsi = np->vsi; 2517 struct i40e_pf *pf = vsi->back; 2518 unsigned int i; 2519 u8 *p = data; 2520 2521 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) 2522 ethtool_puts(&p, i40e_gstrings_priv_flags[i].flag_string); 2523 if (pf->hw.pf_id != 0) 2524 return; 2525 for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++) 2526 ethtool_puts(&p, i40e_gl_gstrings_priv_flags[i].flag_string); 2527 } 2528 2529 static void i40e_get_strings(struct net_device *netdev, u32 stringset, 2530 u8 *data) 2531 { 2532 switch (stringset) { 2533 case ETH_SS_TEST: 2534 memcpy(data, i40e_gstrings_test, 2535 I40E_TEST_LEN * ETH_GSTRING_LEN); 2536 break; 2537 case ETH_SS_STATS: 2538 i40e_get_stat_strings(netdev, data); 2539 break; 2540 case ETH_SS_PRIV_FLAGS: 2541 i40e_get_priv_flag_strings(netdev, data); 2542 break; 2543 default: 2544 break; 2545 } 2546 } 2547 2548 static int i40e_get_ts_info(struct net_device *dev, 2549 struct ethtool_ts_info *info) 2550 { 2551 struct i40e_pf *pf = i40e_netdev_to_pf(dev); 2552 2553 /* only report HW timestamping if PTP is enabled */ 2554 if (!test_bit(I40E_FLAG_PTP_ENA, pf->flags)) 2555 return ethtool_op_get_ts_info(dev, info); 2556 2557 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | 2558 SOF_TIMESTAMPING_RX_SOFTWARE | 2559 SOF_TIMESTAMPING_SOFTWARE | 2560 SOF_TIMESTAMPING_TX_HARDWARE | 2561 SOF_TIMESTAMPING_RX_HARDWARE | 2562 SOF_TIMESTAMPING_RAW_HARDWARE; 2563 2564 if (pf->ptp_clock) 2565 info->phc_index = ptp_clock_index(pf->ptp_clock); 2566 else 2567 info->phc_index = -1; 2568 2569 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON); 2570 2571 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | 2572 BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) | 2573 BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) | 2574 BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ); 2575 2576 if (test_bit(I40E_HW_CAP_PTP_L4, pf->hw.caps)) 2577 info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) | 2578 BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) | 2579 BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) | 2580 BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) | 2581 BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) | 2582 BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) | 2583 BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) | 2584 BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ); 2585 2586 return 0; 2587 } 2588 2589 static u64 i40e_link_test(struct net_device *netdev, u64 *data) 2590 { 2591 struct i40e_netdev_priv *np = netdev_priv(netdev); 2592 struct i40e_pf *pf = np->vsi->back; 2593 bool link_up = false; 2594 int status; 2595 2596 netif_info(pf, hw, netdev, "link test\n"); 2597 status = i40e_get_link_status(&pf->hw, &link_up); 2598 if (status) { 2599 netif_err(pf, drv, netdev, "link query timed out, please retry test\n"); 2600 *data = 1; 2601 return *data; 2602 } 2603 2604 if (link_up) 2605 *data = 0; 2606 else 2607 *data = 1; 2608 2609 return *data; 2610 } 2611 2612 static u64 i40e_reg_test(struct net_device *netdev, u64 *data) 2613 { 2614 struct i40e_netdev_priv *np = netdev_priv(netdev); 2615 struct i40e_pf *pf = np->vsi->back; 2616 2617 netif_info(pf, hw, netdev, "register test\n"); 2618 *data = i40e_diag_reg_test(&pf->hw); 2619 2620 return *data; 2621 } 2622 2623 static u64 i40e_eeprom_test(struct net_device *netdev, u64 *data) 2624 { 2625 struct i40e_netdev_priv *np = netdev_priv(netdev); 2626 struct i40e_pf *pf = np->vsi->back; 2627 2628 netif_info(pf, hw, netdev, "eeprom test\n"); 2629 *data = i40e_diag_eeprom_test(&pf->hw); 2630 2631 /* forcebly clear the NVM Update state machine */ 2632 pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT; 2633 2634 return *data; 2635 } 2636 2637 static u64 i40e_intr_test(struct net_device *netdev, u64 *data) 2638 { 2639 struct i40e_netdev_priv *np = netdev_priv(netdev); 2640 struct i40e_pf *pf = np->vsi->back; 2641 u16 swc_old = pf->sw_int_count; 2642 2643 netif_info(pf, hw, netdev, "interrupt test\n"); 2644 wr32(&pf->hw, I40E_PFINT_DYN_CTL0, 2645 (I40E_PFINT_DYN_CTL0_INTENA_MASK | 2646 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK | 2647 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK | 2648 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK | 2649 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK)); 2650 usleep_range(1000, 2000); 2651 *data = (swc_old == pf->sw_int_count); 2652 2653 return *data; 2654 } 2655 2656 static inline bool i40e_active_vfs(struct i40e_pf *pf) 2657 { 2658 struct i40e_vf *vfs = pf->vf; 2659 int i; 2660 2661 for (i = 0; i < pf->num_alloc_vfs; i++) 2662 if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states)) 2663 return true; 2664 return false; 2665 } 2666 2667 static inline bool i40e_active_vmdqs(struct i40e_pf *pf) 2668 { 2669 return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2); 2670 } 2671 2672 static void i40e_diag_test(struct net_device *netdev, 2673 struct ethtool_test *eth_test, u64 *data) 2674 { 2675 struct i40e_netdev_priv *np = netdev_priv(netdev); 2676 bool if_running = netif_running(netdev); 2677 struct i40e_pf *pf = np->vsi->back; 2678 2679 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 2680 /* Offline tests */ 2681 netif_info(pf, drv, netdev, "offline testing starting\n"); 2682 2683 set_bit(__I40E_TESTING, pf->state); 2684 2685 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 2686 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) { 2687 dev_warn(&pf->pdev->dev, 2688 "Cannot start offline testing when PF is in reset state.\n"); 2689 goto skip_ol_tests; 2690 } 2691 2692 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) { 2693 dev_warn(&pf->pdev->dev, 2694 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n"); 2695 goto skip_ol_tests; 2696 } 2697 2698 /* If the device is online then take it offline */ 2699 if (if_running) 2700 /* indicate we're in test mode */ 2701 i40e_close(netdev); 2702 else 2703 /* This reset does not affect link - if it is 2704 * changed to a type of reset that does affect 2705 * link then the following link test would have 2706 * to be moved to before the reset 2707 */ 2708 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 2709 2710 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 2711 eth_test->flags |= ETH_TEST_FL_FAILED; 2712 2713 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM])) 2714 eth_test->flags |= ETH_TEST_FL_FAILED; 2715 2716 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR])) 2717 eth_test->flags |= ETH_TEST_FL_FAILED; 2718 2719 /* run reg test last, a reset is required after it */ 2720 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG])) 2721 eth_test->flags |= ETH_TEST_FL_FAILED; 2722 2723 clear_bit(__I40E_TESTING, pf->state); 2724 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 2725 2726 if (if_running) 2727 i40e_open(netdev); 2728 } else { 2729 /* Online tests */ 2730 netif_info(pf, drv, netdev, "online testing starting\n"); 2731 2732 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 2733 eth_test->flags |= ETH_TEST_FL_FAILED; 2734 2735 /* Offline only tests, not run in online; pass by default */ 2736 data[I40E_ETH_TEST_REG] = 0; 2737 data[I40E_ETH_TEST_EEPROM] = 0; 2738 data[I40E_ETH_TEST_INTR] = 0; 2739 } 2740 2741 netif_info(pf, drv, netdev, "testing finished\n"); 2742 return; 2743 2744 skip_ol_tests: 2745 data[I40E_ETH_TEST_REG] = 1; 2746 data[I40E_ETH_TEST_EEPROM] = 1; 2747 data[I40E_ETH_TEST_INTR] = 1; 2748 data[I40E_ETH_TEST_LINK] = 1; 2749 eth_test->flags |= ETH_TEST_FL_FAILED; 2750 clear_bit(__I40E_TESTING, pf->state); 2751 netif_info(pf, drv, netdev, "testing failed\n"); 2752 } 2753 2754 static void i40e_get_wol(struct net_device *netdev, 2755 struct ethtool_wolinfo *wol) 2756 { 2757 struct i40e_netdev_priv *np = netdev_priv(netdev); 2758 struct i40e_pf *pf = np->vsi->back; 2759 struct i40e_hw *hw = &pf->hw; 2760 u16 wol_nvm_bits; 2761 2762 /* NVM bit on means WoL disabled for the port */ 2763 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 2764 if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) { 2765 wol->supported = 0; 2766 wol->wolopts = 0; 2767 } else { 2768 wol->supported = WAKE_MAGIC; 2769 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0); 2770 } 2771 } 2772 2773 /** 2774 * i40e_set_wol - set the WakeOnLAN configuration 2775 * @netdev: the netdev in question 2776 * @wol: the ethtool WoL setting data 2777 **/ 2778 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 2779 { 2780 struct i40e_netdev_priv *np = netdev_priv(netdev); 2781 struct i40e_pf *pf = np->vsi->back; 2782 struct i40e_vsi *vsi = np->vsi; 2783 struct i40e_hw *hw = &pf->hw; 2784 u16 wol_nvm_bits; 2785 2786 /* WoL not supported if this isn't the controlling PF on the port */ 2787 if (hw->partition_id != 1) { 2788 i40e_partition_setting_complaint(pf); 2789 return -EOPNOTSUPP; 2790 } 2791 2792 if (vsi->type != I40E_VSI_MAIN) 2793 return -EOPNOTSUPP; 2794 2795 /* NVM bit on means WoL disabled for the port */ 2796 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 2797 if (BIT(hw->port) & wol_nvm_bits) 2798 return -EOPNOTSUPP; 2799 2800 /* only magic packet is supported */ 2801 if (wol->wolopts & ~WAKE_MAGIC) 2802 return -EOPNOTSUPP; 2803 2804 /* is this a new value? */ 2805 if (pf->wol_en != !!wol->wolopts) { 2806 pf->wol_en = !!wol->wolopts; 2807 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en); 2808 } 2809 2810 return 0; 2811 } 2812 2813 static int i40e_set_phys_id(struct net_device *netdev, 2814 enum ethtool_phys_id_state state) 2815 { 2816 struct i40e_netdev_priv *np = netdev_priv(netdev); 2817 struct i40e_pf *pf = np->vsi->back; 2818 struct i40e_hw *hw = &pf->hw; 2819 int blink_freq = 2; 2820 u16 temp_status; 2821 int ret = 0; 2822 2823 switch (state) { 2824 case ETHTOOL_ID_ACTIVE: 2825 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps)) { 2826 pf->led_status = i40e_led_get(hw); 2827 } else { 2828 if (!test_bit(I40E_HW_CAP_AQ_PHY_ACCESS, hw->caps)) 2829 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL, 2830 NULL); 2831 ret = i40e_led_get_phy(hw, &temp_status, 2832 &pf->phy_led_val); 2833 pf->led_status = temp_status; 2834 } 2835 return blink_freq; 2836 case ETHTOOL_ID_ON: 2837 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps)) 2838 i40e_led_set(hw, 0xf, false); 2839 else 2840 ret = i40e_led_set_phy(hw, true, pf->led_status, 0); 2841 break; 2842 case ETHTOOL_ID_OFF: 2843 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps)) 2844 i40e_led_set(hw, 0x0, false); 2845 else 2846 ret = i40e_led_set_phy(hw, false, pf->led_status, 0); 2847 break; 2848 case ETHTOOL_ID_INACTIVE: 2849 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps)) { 2850 i40e_led_set(hw, pf->led_status, false); 2851 } else { 2852 ret = i40e_led_set_phy(hw, false, pf->led_status, 2853 (pf->phy_led_val | 2854 I40E_PHY_LED_MODE_ORIG)); 2855 if (!test_bit(I40E_HW_CAP_AQ_PHY_ACCESS, hw->caps)) 2856 i40e_aq_set_phy_debug(hw, 0, NULL); 2857 } 2858 break; 2859 default: 2860 break; 2861 } 2862 if (ret) 2863 return -ENOENT; 2864 else 2865 return 0; 2866 } 2867 2868 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt 2869 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also 2870 * 125us (8000 interrupts per second) == ITR(62) 2871 */ 2872 2873 /** 2874 * __i40e_get_coalesce - get per-queue coalesce settings 2875 * @netdev: the netdev to check 2876 * @ec: ethtool coalesce data structure 2877 * @queue: which queue to pick 2878 * 2879 * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs 2880 * are per queue. If queue is <0 then we default to queue 0 as the 2881 * representative value. 2882 **/ 2883 static int __i40e_get_coalesce(struct net_device *netdev, 2884 struct ethtool_coalesce *ec, 2885 int queue) 2886 { 2887 struct i40e_netdev_priv *np = netdev_priv(netdev); 2888 struct i40e_ring *rx_ring, *tx_ring; 2889 struct i40e_vsi *vsi = np->vsi; 2890 2891 ec->tx_max_coalesced_frames_irq = vsi->work_limit; 2892 2893 /* rx and tx usecs has per queue value. If user doesn't specify the 2894 * queue, return queue 0's value to represent. 2895 */ 2896 if (queue < 0) 2897 queue = 0; 2898 else if (queue >= vsi->num_queue_pairs) 2899 return -EINVAL; 2900 2901 rx_ring = vsi->rx_rings[queue]; 2902 tx_ring = vsi->tx_rings[queue]; 2903 2904 if (ITR_IS_DYNAMIC(rx_ring->itr_setting)) 2905 ec->use_adaptive_rx_coalesce = 1; 2906 2907 if (ITR_IS_DYNAMIC(tx_ring->itr_setting)) 2908 ec->use_adaptive_tx_coalesce = 1; 2909 2910 ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC; 2911 ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC; 2912 2913 /* we use the _usecs_high to store/set the interrupt rate limit 2914 * that the hardware supports, that almost but not quite 2915 * fits the original intent of the ethtool variable, 2916 * the rx_coalesce_usecs_high limits total interrupts 2917 * per second from both tx/rx sources. 2918 */ 2919 ec->rx_coalesce_usecs_high = vsi->int_rate_limit; 2920 ec->tx_coalesce_usecs_high = vsi->int_rate_limit; 2921 2922 return 0; 2923 } 2924 2925 /** 2926 * i40e_get_coalesce - get a netdev's coalesce settings 2927 * @netdev: the netdev to check 2928 * @ec: ethtool coalesce data structure 2929 * @kernel_coal: ethtool CQE mode setting structure 2930 * @extack: extack for reporting error messages 2931 * 2932 * Gets the coalesce settings for a particular netdev. Note that if user has 2933 * modified per-queue settings, this only guarantees to represent queue 0. See 2934 * __i40e_get_coalesce for more details. 2935 **/ 2936 static int i40e_get_coalesce(struct net_device *netdev, 2937 struct ethtool_coalesce *ec, 2938 struct kernel_ethtool_coalesce *kernel_coal, 2939 struct netlink_ext_ack *extack) 2940 { 2941 return __i40e_get_coalesce(netdev, ec, -1); 2942 } 2943 2944 /** 2945 * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue 2946 * @netdev: netdev structure 2947 * @ec: ethtool's coalesce settings 2948 * @queue: the particular queue to read 2949 * 2950 * Will read a specific queue's coalesce settings 2951 **/ 2952 static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue, 2953 struct ethtool_coalesce *ec) 2954 { 2955 return __i40e_get_coalesce(netdev, ec, queue); 2956 } 2957 2958 /** 2959 * i40e_set_itr_per_queue - set ITR values for specific queue 2960 * @vsi: the VSI to set values for 2961 * @ec: coalesce settings from ethtool 2962 * @queue: the queue to modify 2963 * 2964 * Change the ITR settings for a specific queue. 2965 **/ 2966 static void i40e_set_itr_per_queue(struct i40e_vsi *vsi, 2967 struct ethtool_coalesce *ec, 2968 int queue) 2969 { 2970 struct i40e_ring *rx_ring = vsi->rx_rings[queue]; 2971 struct i40e_ring *tx_ring = vsi->tx_rings[queue]; 2972 struct i40e_pf *pf = vsi->back; 2973 struct i40e_hw *hw = &pf->hw; 2974 struct i40e_q_vector *q_vector; 2975 u16 intrl; 2976 2977 intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit); 2978 2979 rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs); 2980 tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs); 2981 2982 if (ec->use_adaptive_rx_coalesce) 2983 rx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2984 else 2985 rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2986 2987 if (ec->use_adaptive_tx_coalesce) 2988 tx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2989 else 2990 tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2991 2992 q_vector = rx_ring->q_vector; 2993 q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting); 2994 2995 q_vector = tx_ring->q_vector; 2996 q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting); 2997 2998 /* The interrupt handler itself will take care of programming 2999 * the Tx and Rx ITR values based on the values we have entered 3000 * into the q_vector, no need to write the values now. 3001 */ 3002 3003 wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl); 3004 i40e_flush(hw); 3005 } 3006 3007 /** 3008 * __i40e_set_coalesce - set coalesce settings for particular queue 3009 * @netdev: the netdev to change 3010 * @ec: ethtool coalesce settings 3011 * @queue: the queue to change 3012 * 3013 * Sets the coalesce settings for a particular queue. 3014 **/ 3015 static int __i40e_set_coalesce(struct net_device *netdev, 3016 struct ethtool_coalesce *ec, 3017 int queue) 3018 { 3019 struct i40e_netdev_priv *np = netdev_priv(netdev); 3020 u16 intrl_reg, cur_rx_itr, cur_tx_itr; 3021 struct i40e_vsi *vsi = np->vsi; 3022 struct i40e_pf *pf = vsi->back; 3023 int i; 3024 3025 if (ec->tx_max_coalesced_frames_irq) 3026 vsi->work_limit = ec->tx_max_coalesced_frames_irq; 3027 3028 if (queue < 0) { 3029 cur_rx_itr = vsi->rx_rings[0]->itr_setting; 3030 cur_tx_itr = vsi->tx_rings[0]->itr_setting; 3031 } else if (queue < vsi->num_queue_pairs) { 3032 cur_rx_itr = vsi->rx_rings[queue]->itr_setting; 3033 cur_tx_itr = vsi->tx_rings[queue]->itr_setting; 3034 } else { 3035 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n", 3036 vsi->num_queue_pairs - 1); 3037 return -EINVAL; 3038 } 3039 3040 cur_tx_itr &= ~I40E_ITR_DYNAMIC; 3041 cur_rx_itr &= ~I40E_ITR_DYNAMIC; 3042 3043 /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */ 3044 if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) { 3045 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n"); 3046 return -EINVAL; 3047 } 3048 3049 if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) { 3050 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n", 3051 INTRL_REG_TO_USEC(I40E_MAX_INTRL)); 3052 return -EINVAL; 3053 } 3054 3055 if (ec->rx_coalesce_usecs != cur_rx_itr && 3056 ec->use_adaptive_rx_coalesce) { 3057 netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n"); 3058 return -EINVAL; 3059 } 3060 3061 if (ec->rx_coalesce_usecs > I40E_MAX_ITR) { 3062 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n"); 3063 return -EINVAL; 3064 } 3065 3066 if (ec->tx_coalesce_usecs != cur_tx_itr && 3067 ec->use_adaptive_tx_coalesce) { 3068 netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n"); 3069 return -EINVAL; 3070 } 3071 3072 if (ec->tx_coalesce_usecs > I40E_MAX_ITR) { 3073 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n"); 3074 return -EINVAL; 3075 } 3076 3077 if (ec->use_adaptive_rx_coalesce && !cur_rx_itr) 3078 ec->rx_coalesce_usecs = I40E_MIN_ITR; 3079 3080 if (ec->use_adaptive_tx_coalesce && !cur_tx_itr) 3081 ec->tx_coalesce_usecs = I40E_MIN_ITR; 3082 3083 intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high); 3084 vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg); 3085 if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) { 3086 netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n", 3087 vsi->int_rate_limit); 3088 } 3089 3090 /* rx and tx usecs has per queue value. If user doesn't specify the 3091 * queue, apply to all queues. 3092 */ 3093 if (queue < 0) { 3094 for (i = 0; i < vsi->num_queue_pairs; i++) 3095 i40e_set_itr_per_queue(vsi, ec, i); 3096 } else { 3097 i40e_set_itr_per_queue(vsi, ec, queue); 3098 } 3099 3100 return 0; 3101 } 3102 3103 /** 3104 * i40e_set_coalesce - set coalesce settings for every queue on the netdev 3105 * @netdev: the netdev to change 3106 * @ec: ethtool coalesce settings 3107 * @kernel_coal: ethtool CQE mode setting structure 3108 * @extack: extack for reporting error messages 3109 * 3110 * This will set each queue to the same coalesce settings. 3111 **/ 3112 static int i40e_set_coalesce(struct net_device *netdev, 3113 struct ethtool_coalesce *ec, 3114 struct kernel_ethtool_coalesce *kernel_coal, 3115 struct netlink_ext_ack *extack) 3116 { 3117 return __i40e_set_coalesce(netdev, ec, -1); 3118 } 3119 3120 /** 3121 * i40e_set_per_queue_coalesce - set specific queue's coalesce settings 3122 * @netdev: the netdev to change 3123 * @ec: ethtool's coalesce settings 3124 * @queue: the queue to change 3125 * 3126 * Sets the specified queue's coalesce settings. 3127 **/ 3128 static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue, 3129 struct ethtool_coalesce *ec) 3130 { 3131 return __i40e_set_coalesce(netdev, ec, queue); 3132 } 3133 3134 /** 3135 * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type 3136 * @pf: pointer to the physical function struct 3137 * @cmd: ethtool rxnfc command 3138 * 3139 * Returns Success if the flow is supported, else Invalid Input. 3140 **/ 3141 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd) 3142 { 3143 struct i40e_hw *hw = &pf->hw; 3144 u8 flow_pctype = 0; 3145 u64 i_set = 0; 3146 3147 cmd->data = 0; 3148 3149 switch (cmd->flow_type) { 3150 case TCP_V4_FLOW: 3151 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3152 break; 3153 case UDP_V4_FLOW: 3154 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3155 break; 3156 case TCP_V6_FLOW: 3157 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3158 break; 3159 case UDP_V6_FLOW: 3160 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3161 break; 3162 case SCTP_V4_FLOW: 3163 case AH_ESP_V4_FLOW: 3164 case AH_V4_FLOW: 3165 case ESP_V4_FLOW: 3166 case IPV4_FLOW: 3167 case SCTP_V6_FLOW: 3168 case AH_ESP_V6_FLOW: 3169 case AH_V6_FLOW: 3170 case ESP_V6_FLOW: 3171 case IPV6_FLOW: 3172 /* Default is src/dest for IP, no matter the L4 hashing */ 3173 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 3174 break; 3175 default: 3176 return -EINVAL; 3177 } 3178 3179 /* Read flow based hash input set register */ 3180 if (flow_pctype) { 3181 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, 3182 flow_pctype)) | 3183 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, 3184 flow_pctype)) << 32); 3185 } 3186 3187 /* Process bits of hash input set */ 3188 if (i_set) { 3189 if (i_set & I40E_L4_SRC_MASK) 3190 cmd->data |= RXH_L4_B_0_1; 3191 if (i_set & I40E_L4_DST_MASK) 3192 cmd->data |= RXH_L4_B_2_3; 3193 3194 if (cmd->flow_type == TCP_V4_FLOW || 3195 cmd->flow_type == UDP_V4_FLOW) { 3196 if (hw->mac.type == I40E_MAC_X722) { 3197 if (i_set & I40E_X722_L3_SRC_MASK) 3198 cmd->data |= RXH_IP_SRC; 3199 if (i_set & I40E_X722_L3_DST_MASK) 3200 cmd->data |= RXH_IP_DST; 3201 } else { 3202 if (i_set & I40E_L3_SRC_MASK) 3203 cmd->data |= RXH_IP_SRC; 3204 if (i_set & I40E_L3_DST_MASK) 3205 cmd->data |= RXH_IP_DST; 3206 } 3207 } else if (cmd->flow_type == TCP_V6_FLOW || 3208 cmd->flow_type == UDP_V6_FLOW) { 3209 if (i_set & I40E_L3_V6_SRC_MASK) 3210 cmd->data |= RXH_IP_SRC; 3211 if (i_set & I40E_L3_V6_DST_MASK) 3212 cmd->data |= RXH_IP_DST; 3213 } 3214 } 3215 3216 return 0; 3217 } 3218 3219 /** 3220 * i40e_check_mask - Check whether a mask field is set 3221 * @mask: the full mask value 3222 * @field: mask of the field to check 3223 * 3224 * If the given mask is fully set, return positive value. If the mask for the 3225 * field is fully unset, return zero. Otherwise return a negative error code. 3226 **/ 3227 static int i40e_check_mask(u64 mask, u64 field) 3228 { 3229 u64 value = mask & field; 3230 3231 if (value == field) 3232 return 1; 3233 else if (!value) 3234 return 0; 3235 else 3236 return -1; 3237 } 3238 3239 /** 3240 * i40e_parse_rx_flow_user_data - Deconstruct user-defined data 3241 * @fsp: pointer to rx flow specification 3242 * @data: pointer to userdef data structure for storage 3243 * 3244 * Read the user-defined data and deconstruct the value into a structure. No 3245 * other code should read the user-defined data, so as to ensure that every 3246 * place consistently reads the value correctly. 3247 * 3248 * The user-defined field is a 64bit Big Endian format value, which we 3249 * deconstruct by reading bits or bit fields from it. Single bit flags shall 3250 * be defined starting from the highest bits, while small bit field values 3251 * shall be defined starting from the lowest bits. 3252 * 3253 * Returns 0 if the data is valid, and non-zero if the userdef data is invalid 3254 * and the filter should be rejected. The data structure will always be 3255 * modified even if FLOW_EXT is not set. 3256 * 3257 **/ 3258 static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 3259 struct i40e_rx_flow_userdef *data) 3260 { 3261 u64 value, mask; 3262 int valid; 3263 3264 /* Zero memory first so it's always consistent. */ 3265 memset(data, 0, sizeof(*data)); 3266 3267 if (!(fsp->flow_type & FLOW_EXT)) 3268 return 0; 3269 3270 value = be64_to_cpu(*((__be64 *)fsp->h_ext.data)); 3271 mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data)); 3272 3273 #define I40E_USERDEF_FLEX_WORD GENMASK_ULL(15, 0) 3274 #define I40E_USERDEF_FLEX_OFFSET GENMASK_ULL(31, 16) 3275 #define I40E_USERDEF_FLEX_FILTER GENMASK_ULL(31, 0) 3276 3277 valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER); 3278 if (valid < 0) { 3279 return -EINVAL; 3280 } else if (valid) { 3281 data->flex_word = value & I40E_USERDEF_FLEX_WORD; 3282 data->flex_offset = 3283 FIELD_GET(I40E_USERDEF_FLEX_OFFSET, value); 3284 data->flex_filter = true; 3285 } 3286 3287 return 0; 3288 } 3289 3290 /** 3291 * i40e_fill_rx_flow_user_data - Fill in user-defined data field 3292 * @fsp: pointer to rx_flow specification 3293 * @data: pointer to return userdef data 3294 * 3295 * Reads the userdef data structure and properly fills in the user defined 3296 * fields of the rx_flow_spec. 3297 **/ 3298 static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 3299 struct i40e_rx_flow_userdef *data) 3300 { 3301 u64 value = 0, mask = 0; 3302 3303 if (data->flex_filter) { 3304 value |= data->flex_word; 3305 value |= (u64)data->flex_offset << 16; 3306 mask |= I40E_USERDEF_FLEX_FILTER; 3307 } 3308 3309 if (value || mask) 3310 fsp->flow_type |= FLOW_EXT; 3311 3312 *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value); 3313 *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask); 3314 } 3315 3316 /** 3317 * i40e_get_ethtool_fdir_all - Populates the rule count of a command 3318 * @pf: Pointer to the physical function struct 3319 * @cmd: The command to get or set Rx flow classification rules 3320 * @rule_locs: Array of used rule locations 3321 * 3322 * This function populates both the total and actual rule count of 3323 * the ethtool flow classification command 3324 * 3325 * Returns 0 on success or -EMSGSIZE if entry not found 3326 **/ 3327 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf, 3328 struct ethtool_rxnfc *cmd, 3329 u32 *rule_locs) 3330 { 3331 struct i40e_fdir_filter *rule; 3332 struct hlist_node *node2; 3333 int cnt = 0; 3334 3335 /* report total rule count */ 3336 cmd->data = i40e_get_fd_cnt_all(pf); 3337 3338 hlist_for_each_entry_safe(rule, node2, 3339 &pf->fdir_filter_list, fdir_node) { 3340 if (cnt == cmd->rule_cnt) 3341 return -EMSGSIZE; 3342 3343 rule_locs[cnt] = rule->fd_id; 3344 cnt++; 3345 } 3346 3347 cmd->rule_cnt = cnt; 3348 3349 return 0; 3350 } 3351 3352 /** 3353 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow 3354 * @pf: Pointer to the physical function struct 3355 * @cmd: The command to get or set Rx flow classification rules 3356 * 3357 * This function looks up a filter based on the Rx flow classification 3358 * command and fills the flow spec info for it if found 3359 * 3360 * Returns 0 on success or -EINVAL if filter not found 3361 **/ 3362 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf, 3363 struct ethtool_rxnfc *cmd) 3364 { 3365 struct ethtool_rx_flow_spec *fsp = 3366 (struct ethtool_rx_flow_spec *)&cmd->fs; 3367 struct i40e_rx_flow_userdef userdef = {0}; 3368 struct i40e_fdir_filter *rule = NULL; 3369 struct hlist_node *node2; 3370 struct i40e_vsi *vsi; 3371 u64 input_set; 3372 u16 index; 3373 3374 hlist_for_each_entry_safe(rule, node2, 3375 &pf->fdir_filter_list, fdir_node) { 3376 if (fsp->location <= rule->fd_id) 3377 break; 3378 } 3379 3380 if (!rule || fsp->location != rule->fd_id) 3381 return -EINVAL; 3382 3383 fsp->flow_type = rule->flow_type; 3384 if (fsp->flow_type == IP_USER_FLOW) { 3385 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4; 3386 fsp->h_u.usr_ip4_spec.proto = 0; 3387 fsp->m_u.usr_ip4_spec.proto = 0; 3388 } 3389 3390 if (fsp->flow_type == IPV6_USER_FLOW || 3391 fsp->flow_type == UDP_V6_FLOW || 3392 fsp->flow_type == TCP_V6_FLOW || 3393 fsp->flow_type == SCTP_V6_FLOW) { 3394 /* Reverse the src and dest notion, since the HW views them 3395 * from Tx perspective where as the user expects it from 3396 * Rx filter view. 3397 */ 3398 fsp->h_u.tcp_ip6_spec.psrc = rule->dst_port; 3399 fsp->h_u.tcp_ip6_spec.pdst = rule->src_port; 3400 memcpy(fsp->h_u.tcp_ip6_spec.ip6dst, rule->src_ip6, 3401 sizeof(__be32) * 4); 3402 memcpy(fsp->h_u.tcp_ip6_spec.ip6src, rule->dst_ip6, 3403 sizeof(__be32) * 4); 3404 } else { 3405 /* Reverse the src and dest notion, since the HW views them 3406 * from Tx perspective where as the user expects it from 3407 * Rx filter view. 3408 */ 3409 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port; 3410 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port; 3411 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip; 3412 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip; 3413 } 3414 3415 switch (rule->flow_type) { 3416 case SCTP_V4_FLOW: 3417 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP; 3418 break; 3419 case TCP_V4_FLOW: 3420 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3421 break; 3422 case UDP_V4_FLOW: 3423 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3424 break; 3425 case SCTP_V6_FLOW: 3426 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP; 3427 break; 3428 case TCP_V6_FLOW: 3429 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3430 break; 3431 case UDP_V6_FLOW: 3432 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3433 break; 3434 case IP_USER_FLOW: 3435 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER; 3436 break; 3437 case IPV6_USER_FLOW: 3438 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER; 3439 break; 3440 default: 3441 /* If we have stored a filter with a flow type not listed here 3442 * it is almost certainly a driver bug. WARN(), and then 3443 * assign the input_set as if all fields are enabled to avoid 3444 * reading unassigned memory. 3445 */ 3446 WARN(1, "Missing input set index for flow_type %d\n", 3447 rule->flow_type); 3448 input_set = 0xFFFFFFFFFFFFFFFFULL; 3449 goto no_input_set; 3450 } 3451 3452 input_set = i40e_read_fd_input_set(pf, index); 3453 3454 no_input_set: 3455 if (input_set & I40E_L3_V6_SRC_MASK) { 3456 fsp->m_u.tcp_ip6_spec.ip6src[0] = htonl(0xFFFFFFFF); 3457 fsp->m_u.tcp_ip6_spec.ip6src[1] = htonl(0xFFFFFFFF); 3458 fsp->m_u.tcp_ip6_spec.ip6src[2] = htonl(0xFFFFFFFF); 3459 fsp->m_u.tcp_ip6_spec.ip6src[3] = htonl(0xFFFFFFFF); 3460 } 3461 3462 if (input_set & I40E_L3_V6_DST_MASK) { 3463 fsp->m_u.tcp_ip6_spec.ip6dst[0] = htonl(0xFFFFFFFF); 3464 fsp->m_u.tcp_ip6_spec.ip6dst[1] = htonl(0xFFFFFFFF); 3465 fsp->m_u.tcp_ip6_spec.ip6dst[2] = htonl(0xFFFFFFFF); 3466 fsp->m_u.tcp_ip6_spec.ip6dst[3] = htonl(0xFFFFFFFF); 3467 } 3468 3469 if (input_set & I40E_L3_SRC_MASK) 3470 fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF); 3471 3472 if (input_set & I40E_L3_DST_MASK) 3473 fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF); 3474 3475 if (input_set & I40E_L4_SRC_MASK) 3476 fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF); 3477 3478 if (input_set & I40E_L4_DST_MASK) 3479 fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF); 3480 3481 if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET) 3482 fsp->ring_cookie = RX_CLS_FLOW_DISC; 3483 else 3484 fsp->ring_cookie = rule->q_index; 3485 3486 if (rule->vlan_tag) { 3487 fsp->h_ext.vlan_etype = rule->vlan_etype; 3488 fsp->m_ext.vlan_etype = htons(0xFFFF); 3489 fsp->h_ext.vlan_tci = rule->vlan_tag; 3490 fsp->m_ext.vlan_tci = htons(0xFFFF); 3491 fsp->flow_type |= FLOW_EXT; 3492 } 3493 3494 vsi = i40e_pf_get_main_vsi(pf); 3495 if (rule->dest_vsi != vsi->id) { 3496 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi); 3497 if (vsi && vsi->type == I40E_VSI_SRIOV) { 3498 /* VFs are zero-indexed by the driver, but ethtool 3499 * expects them to be one-indexed, so add one here 3500 */ 3501 u64 ring_vf = vsi->vf_id + 1; 3502 3503 ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF; 3504 fsp->ring_cookie |= ring_vf; 3505 } 3506 } 3507 3508 if (rule->flex_filter) { 3509 userdef.flex_filter = true; 3510 userdef.flex_word = be16_to_cpu(rule->flex_word); 3511 userdef.flex_offset = rule->flex_offset; 3512 } 3513 3514 i40e_fill_rx_flow_user_data(fsp, &userdef); 3515 3516 return 0; 3517 } 3518 3519 /** 3520 * i40e_get_rxnfc - command to get RX flow classification rules 3521 * @netdev: network interface device structure 3522 * @cmd: ethtool rxnfc command 3523 * @rule_locs: pointer to store rule data 3524 * 3525 * Returns Success if the command is supported. 3526 **/ 3527 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd, 3528 u32 *rule_locs) 3529 { 3530 struct i40e_netdev_priv *np = netdev_priv(netdev); 3531 struct i40e_vsi *vsi = np->vsi; 3532 struct i40e_pf *pf = vsi->back; 3533 int ret = -EOPNOTSUPP; 3534 3535 switch (cmd->cmd) { 3536 case ETHTOOL_GRXRINGS: 3537 cmd->data = vsi->rss_size; 3538 ret = 0; 3539 break; 3540 case ETHTOOL_GRXFH: 3541 ret = i40e_get_rss_hash_opts(pf, cmd); 3542 break; 3543 case ETHTOOL_GRXCLSRLCNT: 3544 cmd->rule_cnt = pf->fdir_pf_active_filters; 3545 /* report total rule count */ 3546 cmd->data = i40e_get_fd_cnt_all(pf); 3547 ret = 0; 3548 break; 3549 case ETHTOOL_GRXCLSRULE: 3550 ret = i40e_get_ethtool_fdir_entry(pf, cmd); 3551 break; 3552 case ETHTOOL_GRXCLSRLALL: 3553 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs); 3554 break; 3555 default: 3556 break; 3557 } 3558 3559 return ret; 3560 } 3561 3562 /** 3563 * i40e_get_rss_hash_bits - Read RSS Hash bits from register 3564 * @hw: hw structure 3565 * @nfc: pointer to user request 3566 * @i_setc: bits currently set 3567 * 3568 * Returns value of bits to be set per user request 3569 **/ 3570 static u64 i40e_get_rss_hash_bits(struct i40e_hw *hw, 3571 struct ethtool_rxnfc *nfc, 3572 u64 i_setc) 3573 { 3574 u64 i_set = i_setc; 3575 u64 src_l3 = 0, dst_l3 = 0; 3576 3577 if (nfc->data & RXH_L4_B_0_1) 3578 i_set |= I40E_L4_SRC_MASK; 3579 else 3580 i_set &= ~I40E_L4_SRC_MASK; 3581 if (nfc->data & RXH_L4_B_2_3) 3582 i_set |= I40E_L4_DST_MASK; 3583 else 3584 i_set &= ~I40E_L4_DST_MASK; 3585 3586 if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) { 3587 src_l3 = I40E_L3_V6_SRC_MASK; 3588 dst_l3 = I40E_L3_V6_DST_MASK; 3589 } else if (nfc->flow_type == TCP_V4_FLOW || 3590 nfc->flow_type == UDP_V4_FLOW) { 3591 if (hw->mac.type == I40E_MAC_X722) { 3592 src_l3 = I40E_X722_L3_SRC_MASK; 3593 dst_l3 = I40E_X722_L3_DST_MASK; 3594 } else { 3595 src_l3 = I40E_L3_SRC_MASK; 3596 dst_l3 = I40E_L3_DST_MASK; 3597 } 3598 } else { 3599 /* Any other flow type are not supported here */ 3600 return i_set; 3601 } 3602 3603 if (nfc->data & RXH_IP_SRC) 3604 i_set |= src_l3; 3605 else 3606 i_set &= ~src_l3; 3607 if (nfc->data & RXH_IP_DST) 3608 i_set |= dst_l3; 3609 else 3610 i_set &= ~dst_l3; 3611 3612 return i_set; 3613 } 3614 3615 #define FLOW_PCTYPES_SIZE 64 3616 /** 3617 * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash 3618 * @pf: pointer to the physical function struct 3619 * @nfc: ethtool rxnfc command 3620 * 3621 * Returns Success if the flow input set is supported. 3622 **/ 3623 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc) 3624 { 3625 struct i40e_hw *hw = &pf->hw; 3626 u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) | 3627 ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32); 3628 DECLARE_BITMAP(flow_pctypes, FLOW_PCTYPES_SIZE); 3629 u64 i_set, i_setc; 3630 3631 bitmap_zero(flow_pctypes, FLOW_PCTYPES_SIZE); 3632 3633 if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) { 3634 dev_err(&pf->pdev->dev, 3635 "Change of RSS hash input set is not supported when MFP mode is enabled\n"); 3636 return -EOPNOTSUPP; 3637 } 3638 3639 /* RSS does not support anything other than hashing 3640 * to queues on src and dst IPs and ports 3641 */ 3642 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 3643 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 3644 return -EINVAL; 3645 3646 switch (nfc->flow_type) { 3647 case TCP_V4_FLOW: 3648 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_TCP, flow_pctypes); 3649 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, 3650 pf->hw.caps)) 3651 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK, 3652 flow_pctypes); 3653 break; 3654 case TCP_V6_FLOW: 3655 set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_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_IPV6_TCP_SYN_NO_ACK, 3659 flow_pctypes); 3660 break; 3661 case UDP_V4_FLOW: 3662 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_UDP, 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_UNICAST_IPV4_UDP, 3666 flow_pctypes); 3667 set_bit(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP, 3668 flow_pctypes); 3669 } 3670 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 3671 break; 3672 case UDP_V6_FLOW: 3673 set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_UDP, flow_pctypes); 3674 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, 3675 pf->hw.caps)) { 3676 set_bit(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP, 3677 flow_pctypes); 3678 set_bit(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP, 3679 flow_pctypes); 3680 } 3681 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 3682 break; 3683 case AH_ESP_V4_FLOW: 3684 case AH_V4_FLOW: 3685 case ESP_V4_FLOW: 3686 case SCTP_V4_FLOW: 3687 if ((nfc->data & RXH_L4_B_0_1) || 3688 (nfc->data & RXH_L4_B_2_3)) 3689 return -EINVAL; 3690 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER); 3691 break; 3692 case AH_ESP_V6_FLOW: 3693 case AH_V6_FLOW: 3694 case ESP_V6_FLOW: 3695 case SCTP_V6_FLOW: 3696 if ((nfc->data & RXH_L4_B_0_1) || 3697 (nfc->data & RXH_L4_B_2_3)) 3698 return -EINVAL; 3699 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER); 3700 break; 3701 case IPV4_FLOW: 3702 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) | 3703 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 3704 break; 3705 case IPV6_FLOW: 3706 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) | 3707 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 3708 break; 3709 default: 3710 return -EINVAL; 3711 } 3712 3713 if (bitmap_weight(flow_pctypes, FLOW_PCTYPES_SIZE)) { 3714 u8 flow_id; 3715 3716 for_each_set_bit(flow_id, flow_pctypes, FLOW_PCTYPES_SIZE) { 3717 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id)) | 3718 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id)) << 32); 3719 i_set = i40e_get_rss_hash_bits(&pf->hw, nfc, i_setc); 3720 3721 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id), 3722 (u32)i_set); 3723 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id), 3724 (u32)(i_set >> 32)); 3725 hena |= BIT_ULL(flow_id); 3726 } 3727 } 3728 3729 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena); 3730 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32)); 3731 i40e_flush(hw); 3732 3733 return 0; 3734 } 3735 3736 /** 3737 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry 3738 * @vsi: Pointer to the targeted VSI 3739 * @input: The filter to update or NULL to indicate deletion 3740 * @sw_idx: Software index to the filter 3741 * @cmd: The command to get or set Rx flow classification rules 3742 * 3743 * This function updates (or deletes) a Flow Director entry from 3744 * the hlist of the corresponding PF 3745 * 3746 * Returns 0 on success 3747 **/ 3748 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi, 3749 struct i40e_fdir_filter *input, 3750 u16 sw_idx, 3751 struct ethtool_rxnfc *cmd) 3752 { 3753 struct i40e_fdir_filter *rule, *parent; 3754 struct i40e_pf *pf = vsi->back; 3755 struct hlist_node *node2; 3756 int err = -EINVAL; 3757 3758 parent = NULL; 3759 rule = NULL; 3760 3761 hlist_for_each_entry_safe(rule, node2, 3762 &pf->fdir_filter_list, fdir_node) { 3763 /* hash found, or no matching entry */ 3764 if (rule->fd_id >= sw_idx) 3765 break; 3766 parent = rule; 3767 } 3768 3769 /* if there is an old rule occupying our place remove it */ 3770 if (rule && (rule->fd_id == sw_idx)) { 3771 /* Remove this rule, since we're either deleting it, or 3772 * replacing it. 3773 */ 3774 err = i40e_add_del_fdir(vsi, rule, false); 3775 hlist_del(&rule->fdir_node); 3776 kfree(rule); 3777 pf->fdir_pf_active_filters--; 3778 } 3779 3780 /* If we weren't given an input, this is a delete, so just return the 3781 * error code indicating if there was an entry at the requested slot 3782 */ 3783 if (!input) 3784 return err; 3785 3786 /* Otherwise, install the new rule as requested */ 3787 INIT_HLIST_NODE(&input->fdir_node); 3788 3789 /* add filter to the list */ 3790 if (parent) 3791 hlist_add_behind(&input->fdir_node, &parent->fdir_node); 3792 else 3793 hlist_add_head(&input->fdir_node, 3794 &pf->fdir_filter_list); 3795 3796 /* update counts */ 3797 pf->fdir_pf_active_filters++; 3798 3799 return 0; 3800 } 3801 3802 /** 3803 * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table 3804 * @pf: pointer to PF structure 3805 * 3806 * This function searches the list of filters and determines which FLX_PIT 3807 * entries are still required. It will prune any entries which are no longer 3808 * in use after the deletion. 3809 **/ 3810 static void i40e_prune_flex_pit_list(struct i40e_pf *pf) 3811 { 3812 struct i40e_flex_pit *entry, *tmp; 3813 struct i40e_fdir_filter *rule; 3814 3815 /* First, we'll check the l3 table */ 3816 list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) { 3817 bool found = false; 3818 3819 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3820 if (rule->flow_type != IP_USER_FLOW) 3821 continue; 3822 if (rule->flex_filter && 3823 rule->flex_offset == entry->src_offset) { 3824 found = true; 3825 break; 3826 } 3827 } 3828 3829 /* If we didn't find the filter, then we can prune this entry 3830 * from the list. 3831 */ 3832 if (!found) { 3833 list_del(&entry->list); 3834 kfree(entry); 3835 } 3836 } 3837 3838 /* Followed by the L4 table */ 3839 list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) { 3840 bool found = false; 3841 3842 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3843 /* Skip this filter if it's L3, since we already 3844 * checked those in the above loop 3845 */ 3846 if (rule->flow_type == IP_USER_FLOW) 3847 continue; 3848 if (rule->flex_filter && 3849 rule->flex_offset == entry->src_offset) { 3850 found = true; 3851 break; 3852 } 3853 } 3854 3855 /* If we didn't find the filter, then we can prune this entry 3856 * from the list. 3857 */ 3858 if (!found) { 3859 list_del(&entry->list); 3860 kfree(entry); 3861 } 3862 } 3863 } 3864 3865 /** 3866 * i40e_del_fdir_entry - Deletes a Flow Director filter entry 3867 * @vsi: Pointer to the targeted VSI 3868 * @cmd: The command to get or set Rx flow classification rules 3869 * 3870 * The function removes a Flow Director filter entry from the 3871 * hlist of the corresponding PF 3872 * 3873 * Returns 0 on success 3874 */ 3875 static int i40e_del_fdir_entry(struct i40e_vsi *vsi, 3876 struct ethtool_rxnfc *cmd) 3877 { 3878 struct ethtool_rx_flow_spec *fsp = 3879 (struct ethtool_rx_flow_spec *)&cmd->fs; 3880 struct i40e_pf *pf = vsi->back; 3881 int ret = 0; 3882 3883 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 3884 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 3885 return -EBUSY; 3886 3887 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 3888 return -EBUSY; 3889 3890 ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd); 3891 3892 i40e_prune_flex_pit_list(pf); 3893 3894 i40e_fdir_check_and_reenable(pf); 3895 return ret; 3896 } 3897 3898 /** 3899 * i40e_unused_pit_index - Find an unused PIT index for given list 3900 * @pf: the PF data structure 3901 * 3902 * Find the first unused flexible PIT index entry. We search both the L3 and 3903 * L4 flexible PIT lists so that the returned index is unique and unused by 3904 * either currently programmed L3 or L4 filters. We use a bit field as storage 3905 * to track which indexes are already used. 3906 **/ 3907 static u8 i40e_unused_pit_index(struct i40e_pf *pf) 3908 { 3909 unsigned long available_index = 0xFF; 3910 struct i40e_flex_pit *entry; 3911 3912 /* We need to make sure that the new index isn't in use by either L3 3913 * or L4 filters so that IP_USER_FLOW filters can program both L3 and 3914 * L4 to use the same index. 3915 */ 3916 3917 list_for_each_entry(entry, &pf->l4_flex_pit_list, list) 3918 clear_bit(entry->pit_index, &available_index); 3919 3920 list_for_each_entry(entry, &pf->l3_flex_pit_list, list) 3921 clear_bit(entry->pit_index, &available_index); 3922 3923 return find_first_bit(&available_index, 8); 3924 } 3925 3926 /** 3927 * i40e_find_flex_offset - Find an existing flex src_offset 3928 * @flex_pit_list: L3 or L4 flex PIT list 3929 * @src_offset: new src_offset to find 3930 * 3931 * Searches the flex_pit_list for an existing offset. If no offset is 3932 * currently programmed, then this will return an ERR_PTR if there is no space 3933 * to add a new offset, otherwise it returns NULL. 3934 **/ 3935 static 3936 struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list, 3937 u16 src_offset) 3938 { 3939 struct i40e_flex_pit *entry; 3940 int size = 0; 3941 3942 /* Search for the src_offset first. If we find a matching entry 3943 * already programmed, we can simply re-use it. 3944 */ 3945 list_for_each_entry(entry, flex_pit_list, list) { 3946 size++; 3947 if (entry->src_offset == src_offset) 3948 return entry; 3949 } 3950 3951 /* If we haven't found an entry yet, then the provided src offset has 3952 * not yet been programmed. We will program the src offset later on, 3953 * but we need to indicate whether there is enough space to do so 3954 * here. We'll make use of ERR_PTR for this purpose. 3955 */ 3956 if (size >= I40E_FLEX_PIT_TABLE_SIZE) 3957 return ERR_PTR(-ENOSPC); 3958 3959 return NULL; 3960 } 3961 3962 /** 3963 * i40e_add_flex_offset - Add src_offset to flex PIT table list 3964 * @flex_pit_list: L3 or L4 flex PIT list 3965 * @src_offset: new src_offset to add 3966 * @pit_index: the PIT index to program 3967 * 3968 * This function programs the new src_offset to the list. It is expected that 3969 * i40e_find_flex_offset has already been tried and returned NULL, indicating 3970 * that this offset is not programmed, and that the list has enough space to 3971 * store another offset. 3972 * 3973 * Returns 0 on success, and negative value on error. 3974 **/ 3975 static int i40e_add_flex_offset(struct list_head *flex_pit_list, 3976 u16 src_offset, 3977 u8 pit_index) 3978 { 3979 struct i40e_flex_pit *new_pit, *entry; 3980 3981 new_pit = kzalloc(sizeof(*entry), GFP_KERNEL); 3982 if (!new_pit) 3983 return -ENOMEM; 3984 3985 new_pit->src_offset = src_offset; 3986 new_pit->pit_index = pit_index; 3987 3988 /* We need to insert this item such that the list is sorted by 3989 * src_offset in ascending order. 3990 */ 3991 list_for_each_entry(entry, flex_pit_list, list) { 3992 if (new_pit->src_offset < entry->src_offset) { 3993 list_add_tail(&new_pit->list, &entry->list); 3994 return 0; 3995 } 3996 3997 /* If we found an entry with our offset already programmed we 3998 * can simply return here, after freeing the memory. However, 3999 * if the pit_index does not match we need to report an error. 4000 */ 4001 if (new_pit->src_offset == entry->src_offset) { 4002 int err = 0; 4003 4004 /* If the PIT index is not the same we can't re-use 4005 * the entry, so we must report an error. 4006 */ 4007 if (new_pit->pit_index != entry->pit_index) 4008 err = -EINVAL; 4009 4010 kfree(new_pit); 4011 return err; 4012 } 4013 } 4014 4015 /* If we reached here, then we haven't yet added the item. This means 4016 * that we should add the item at the end of the list. 4017 */ 4018 list_add_tail(&new_pit->list, flex_pit_list); 4019 return 0; 4020 } 4021 4022 /** 4023 * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table 4024 * @pf: Pointer to the PF structure 4025 * @flex_pit_list: list of flexible src offsets in use 4026 * @flex_pit_start: index to first entry for this section of the table 4027 * 4028 * In order to handle flexible data, the hardware uses a table of values 4029 * called the FLX_PIT table. This table is used to indicate which sections of 4030 * the input correspond to what PIT index values. Unfortunately, hardware is 4031 * very restrictive about programming this table. Entries must be ordered by 4032 * src_offset in ascending order, without duplicates. Additionally, unused 4033 * entries must be set to the unused index value, and must have valid size and 4034 * length according to the src_offset ordering. 4035 * 4036 * This function will reprogram the FLX_PIT register from a book-keeping 4037 * structure that we guarantee is already ordered correctly, and has no more 4038 * than 3 entries. 4039 * 4040 * To make things easier, we only support flexible values of one word length, 4041 * rather than allowing variable length flexible values. 4042 **/ 4043 static void __i40e_reprogram_flex_pit(struct i40e_pf *pf, 4044 struct list_head *flex_pit_list, 4045 int flex_pit_start) 4046 { 4047 struct i40e_flex_pit *entry = NULL; 4048 u16 last_offset = 0; 4049 int i = 0, j = 0; 4050 4051 /* First, loop over the list of flex PIT entries, and reprogram the 4052 * registers. 4053 */ 4054 list_for_each_entry(entry, flex_pit_list, list) { 4055 /* We have to be careful when programming values for the 4056 * largest SRC_OFFSET value. It is possible that adding 4057 * additional empty values at the end would overflow the space 4058 * for the SRC_OFFSET in the FLX_PIT register. To avoid this, 4059 * we check here and add the empty values prior to adding the 4060 * largest value. 4061 * 4062 * To determine this, we will use a loop from i+1 to 3, which 4063 * will determine whether the unused entries would have valid 4064 * SRC_OFFSET. Note that there cannot be extra entries past 4065 * this value, because the only valid values would have been 4066 * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not 4067 * have been added to the list in the first place. 4068 */ 4069 for (j = i + 1; j < 3; j++) { 4070 u16 offset = entry->src_offset + j; 4071 int index = flex_pit_start + i; 4072 u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 4073 1, 4074 offset - 3); 4075 4076 if (offset > I40E_MAX_FLEX_SRC_OFFSET) { 4077 i40e_write_rx_ctl(&pf->hw, 4078 I40E_PRTQF_FLX_PIT(index), 4079 value); 4080 i++; 4081 } 4082 } 4083 4084 /* Now, we can program the actual value into the table */ 4085 i40e_write_rx_ctl(&pf->hw, 4086 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 4087 I40E_FLEX_PREP_VAL(entry->pit_index + 50, 4088 1, 4089 entry->src_offset)); 4090 i++; 4091 } 4092 4093 /* In order to program the last entries in the table, we need to 4094 * determine the valid offset. If the list is empty, we'll just start 4095 * with 0. Otherwise, we'll start with the last item offset and add 1. 4096 * This ensures that all entries have valid sizes. If we don't do this 4097 * correctly, the hardware will disable flexible field parsing. 4098 */ 4099 if (!list_empty(flex_pit_list)) 4100 last_offset = list_prev_entry(entry, list)->src_offset + 1; 4101 4102 for (; i < 3; i++, last_offset++) { 4103 i40e_write_rx_ctl(&pf->hw, 4104 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 4105 I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 4106 1, 4107 last_offset)); 4108 } 4109 } 4110 4111 /** 4112 * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change 4113 * @pf: pointer to the PF structure 4114 * 4115 * This function reprograms both the L3 and L4 FLX_PIT tables. See the 4116 * internal helper function for implementation details. 4117 **/ 4118 static void i40e_reprogram_flex_pit(struct i40e_pf *pf) 4119 { 4120 __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list, 4121 I40E_FLEX_PIT_IDX_START_L3); 4122 4123 __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list, 4124 I40E_FLEX_PIT_IDX_START_L4); 4125 4126 /* We also need to program the L3 and L4 GLQF ORT register */ 4127 i40e_write_rx_ctl(&pf->hw, 4128 I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX), 4129 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3, 4130 3, 1)); 4131 4132 i40e_write_rx_ctl(&pf->hw, 4133 I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX), 4134 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4, 4135 3, 1)); 4136 } 4137 4138 /** 4139 * i40e_flow_str - Converts a flow_type into a human readable string 4140 * @fsp: the flow specification 4141 * 4142 * Currently only flow types we support are included here, and the string 4143 * value attempts to match what ethtool would use to configure this flow type. 4144 **/ 4145 static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp) 4146 { 4147 switch (fsp->flow_type & ~FLOW_EXT) { 4148 case TCP_V4_FLOW: 4149 return "tcp4"; 4150 case UDP_V4_FLOW: 4151 return "udp4"; 4152 case SCTP_V4_FLOW: 4153 return "sctp4"; 4154 case IP_USER_FLOW: 4155 return "ip4"; 4156 case TCP_V6_FLOW: 4157 return "tcp6"; 4158 case UDP_V6_FLOW: 4159 return "udp6"; 4160 case SCTP_V6_FLOW: 4161 return "sctp6"; 4162 case IPV6_USER_FLOW: 4163 return "ip6"; 4164 default: 4165 return "unknown"; 4166 } 4167 } 4168 4169 /** 4170 * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index 4171 * @pit_index: PIT index to convert 4172 * 4173 * Returns the mask for a given PIT index. Will return 0 if the pit_index is 4174 * of range. 4175 **/ 4176 static u64 i40e_pit_index_to_mask(int pit_index) 4177 { 4178 switch (pit_index) { 4179 case 0: 4180 return I40E_FLEX_50_MASK; 4181 case 1: 4182 return I40E_FLEX_51_MASK; 4183 case 2: 4184 return I40E_FLEX_52_MASK; 4185 case 3: 4186 return I40E_FLEX_53_MASK; 4187 case 4: 4188 return I40E_FLEX_54_MASK; 4189 case 5: 4190 return I40E_FLEX_55_MASK; 4191 case 6: 4192 return I40E_FLEX_56_MASK; 4193 case 7: 4194 return I40E_FLEX_57_MASK; 4195 default: 4196 return 0; 4197 } 4198 } 4199 4200 /** 4201 * i40e_print_input_set - Show changes between two input sets 4202 * @vsi: the vsi being configured 4203 * @old: the old input set 4204 * @new: the new input set 4205 * 4206 * Print the difference between old and new input sets by showing which series 4207 * of words are toggled on or off. Only displays the bits we actually support 4208 * changing. 4209 **/ 4210 static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new) 4211 { 4212 struct i40e_pf *pf = vsi->back; 4213 bool old_value, new_value; 4214 int i; 4215 4216 old_value = !!(old & I40E_L3_SRC_MASK); 4217 new_value = !!(new & I40E_L3_SRC_MASK); 4218 if (old_value != new_value) 4219 netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n", 4220 old_value ? "ON" : "OFF", 4221 new_value ? "ON" : "OFF"); 4222 4223 old_value = !!(old & I40E_L3_DST_MASK); 4224 new_value = !!(new & I40E_L3_DST_MASK); 4225 if (old_value != new_value) 4226 netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n", 4227 old_value ? "ON" : "OFF", 4228 new_value ? "ON" : "OFF"); 4229 4230 old_value = !!(old & I40E_L4_SRC_MASK); 4231 new_value = !!(new & I40E_L4_SRC_MASK); 4232 if (old_value != new_value) 4233 netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n", 4234 old_value ? "ON" : "OFF", 4235 new_value ? "ON" : "OFF"); 4236 4237 old_value = !!(old & I40E_L4_DST_MASK); 4238 new_value = !!(new & I40E_L4_DST_MASK); 4239 if (old_value != new_value) 4240 netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n", 4241 old_value ? "ON" : "OFF", 4242 new_value ? "ON" : "OFF"); 4243 4244 old_value = !!(old & I40E_VERIFY_TAG_MASK); 4245 new_value = !!(new & I40E_VERIFY_TAG_MASK); 4246 if (old_value != new_value) 4247 netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n", 4248 old_value ? "ON" : "OFF", 4249 new_value ? "ON" : "OFF"); 4250 4251 /* Show change of flexible filter entries */ 4252 for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) { 4253 u64 flex_mask = i40e_pit_index_to_mask(i); 4254 4255 old_value = !!(old & flex_mask); 4256 new_value = !!(new & flex_mask); 4257 if (old_value != new_value) 4258 netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n", 4259 i, 4260 old_value ? "ON" : "OFF", 4261 new_value ? "ON" : "OFF"); 4262 } 4263 4264 netif_info(pf, drv, vsi->netdev, " Current input set: %0llx\n", 4265 old); 4266 netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n", 4267 new); 4268 } 4269 4270 /** 4271 * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid 4272 * @vsi: pointer to the targeted VSI 4273 * @fsp: pointer to Rx flow specification 4274 * @userdef: userdefined data from flow specification 4275 * 4276 * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support 4277 * for partial matches exists with a few limitations. First, hardware only 4278 * supports masking by word boundary (2 bytes) and not per individual bit. 4279 * Second, hardware is limited to using one mask for a flow type and cannot 4280 * use a separate mask for each filter. 4281 * 4282 * To support these limitations, if we already have a configured filter for 4283 * the specified type, this function enforces that new filters of the type 4284 * match the configured input set. Otherwise, if we do not have a filter of 4285 * the specified type, we allow the input set to be updated to match the 4286 * desired filter. 4287 * 4288 * To help ensure that administrators understand why filters weren't displayed 4289 * as supported, we print a diagnostic message displaying how the input set 4290 * would change and warning to delete the preexisting filters if required. 4291 * 4292 * Returns 0 on successful input set match, and a negative return code on 4293 * failure. 4294 **/ 4295 static int i40e_check_fdir_input_set(struct i40e_vsi *vsi, 4296 struct ethtool_rx_flow_spec *fsp, 4297 struct i40e_rx_flow_userdef *userdef) 4298 { 4299 static const __be32 ipv6_full_mask[4] = {cpu_to_be32(0xffffffff), 4300 cpu_to_be32(0xffffffff), cpu_to_be32(0xffffffff), 4301 cpu_to_be32(0xffffffff)}; 4302 struct ethtool_tcpip6_spec *tcp_ip6_spec; 4303 struct ethtool_usrip6_spec *usr_ip6_spec; 4304 struct ethtool_tcpip4_spec *tcp_ip4_spec; 4305 struct ethtool_usrip4_spec *usr_ip4_spec; 4306 struct i40e_pf *pf = vsi->back; 4307 u64 current_mask, new_mask; 4308 bool new_flex_offset = false; 4309 bool flex_l3 = false; 4310 u16 *fdir_filter_count; 4311 u16 index, src_offset = 0; 4312 u8 pit_index = 0; 4313 int err; 4314 4315 switch (fsp->flow_type & ~FLOW_EXT) { 4316 case SCTP_V4_FLOW: 4317 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP; 4318 fdir_filter_count = &pf->fd_sctp4_filter_cnt; 4319 break; 4320 case TCP_V4_FLOW: 4321 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 4322 fdir_filter_count = &pf->fd_tcp4_filter_cnt; 4323 break; 4324 case UDP_V4_FLOW: 4325 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 4326 fdir_filter_count = &pf->fd_udp4_filter_cnt; 4327 break; 4328 case SCTP_V6_FLOW: 4329 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP; 4330 fdir_filter_count = &pf->fd_sctp6_filter_cnt; 4331 break; 4332 case TCP_V6_FLOW: 4333 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 4334 fdir_filter_count = &pf->fd_tcp6_filter_cnt; 4335 break; 4336 case UDP_V6_FLOW: 4337 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 4338 fdir_filter_count = &pf->fd_udp6_filter_cnt; 4339 break; 4340 case IP_USER_FLOW: 4341 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER; 4342 fdir_filter_count = &pf->fd_ip4_filter_cnt; 4343 flex_l3 = true; 4344 break; 4345 case IPV6_USER_FLOW: 4346 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER; 4347 fdir_filter_count = &pf->fd_ip6_filter_cnt; 4348 flex_l3 = true; 4349 break; 4350 default: 4351 return -EOPNOTSUPP; 4352 } 4353 4354 /* Read the current input set from register memory. */ 4355 current_mask = i40e_read_fd_input_set(pf, index); 4356 new_mask = current_mask; 4357 4358 /* Determine, if any, the required changes to the input set in order 4359 * to support the provided mask. 4360 * 4361 * Hardware only supports masking at word (2 byte) granularity and does 4362 * not support full bitwise masking. This implementation simplifies 4363 * even further and only supports fully enabled or fully disabled 4364 * masks for each field, even though we could split the ip4src and 4365 * ip4dst fields. 4366 */ 4367 switch (fsp->flow_type & ~FLOW_EXT) { 4368 case SCTP_V4_FLOW: 4369 new_mask &= ~I40E_VERIFY_TAG_MASK; 4370 fallthrough; 4371 case TCP_V4_FLOW: 4372 case UDP_V4_FLOW: 4373 tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec; 4374 4375 /* IPv4 source address */ 4376 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 4377 new_mask |= I40E_L3_SRC_MASK; 4378 else if (!tcp_ip4_spec->ip4src) 4379 new_mask &= ~I40E_L3_SRC_MASK; 4380 else 4381 return -EOPNOTSUPP; 4382 4383 /* IPv4 destination address */ 4384 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 4385 new_mask |= I40E_L3_DST_MASK; 4386 else if (!tcp_ip4_spec->ip4dst) 4387 new_mask &= ~I40E_L3_DST_MASK; 4388 else 4389 return -EOPNOTSUPP; 4390 4391 /* L4 source port */ 4392 if (tcp_ip4_spec->psrc == htons(0xFFFF)) 4393 new_mask |= I40E_L4_SRC_MASK; 4394 else if (!tcp_ip4_spec->psrc) 4395 new_mask &= ~I40E_L4_SRC_MASK; 4396 else 4397 return -EOPNOTSUPP; 4398 4399 /* L4 destination port */ 4400 if (tcp_ip4_spec->pdst == htons(0xFFFF)) 4401 new_mask |= I40E_L4_DST_MASK; 4402 else if (!tcp_ip4_spec->pdst) 4403 new_mask &= ~I40E_L4_DST_MASK; 4404 else 4405 return -EOPNOTSUPP; 4406 4407 /* Filtering on Type of Service is not supported. */ 4408 if (tcp_ip4_spec->tos) 4409 return -EOPNOTSUPP; 4410 4411 break; 4412 case SCTP_V6_FLOW: 4413 new_mask &= ~I40E_VERIFY_TAG_MASK; 4414 fallthrough; 4415 case TCP_V6_FLOW: 4416 case UDP_V6_FLOW: 4417 tcp_ip6_spec = &fsp->m_u.tcp_ip6_spec; 4418 4419 /* Check if user provided IPv6 source address. */ 4420 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6src, 4421 (struct in6_addr *)&ipv6_full_mask)) 4422 new_mask |= I40E_L3_V6_SRC_MASK; 4423 else if (ipv6_addr_any((struct in6_addr *) 4424 &tcp_ip6_spec->ip6src)) 4425 new_mask &= ~I40E_L3_V6_SRC_MASK; 4426 else 4427 return -EOPNOTSUPP; 4428 4429 /* Check if user provided destination address. */ 4430 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6dst, 4431 (struct in6_addr *)&ipv6_full_mask)) 4432 new_mask |= I40E_L3_V6_DST_MASK; 4433 else if (ipv6_addr_any((struct in6_addr *) 4434 &tcp_ip6_spec->ip6dst)) 4435 new_mask &= ~I40E_L3_V6_DST_MASK; 4436 else 4437 return -EOPNOTSUPP; 4438 4439 /* L4 source port */ 4440 if (tcp_ip6_spec->psrc == htons(0xFFFF)) 4441 new_mask |= I40E_L4_SRC_MASK; 4442 else if (!tcp_ip6_spec->psrc) 4443 new_mask &= ~I40E_L4_SRC_MASK; 4444 else 4445 return -EOPNOTSUPP; 4446 4447 /* L4 destination port */ 4448 if (tcp_ip6_spec->pdst == htons(0xFFFF)) 4449 new_mask |= I40E_L4_DST_MASK; 4450 else if (!tcp_ip6_spec->pdst) 4451 new_mask &= ~I40E_L4_DST_MASK; 4452 else 4453 return -EOPNOTSUPP; 4454 4455 /* Filtering on Traffic Classes is not supported. */ 4456 if (tcp_ip6_spec->tclass) 4457 return -EOPNOTSUPP; 4458 break; 4459 case IP_USER_FLOW: 4460 usr_ip4_spec = &fsp->m_u.usr_ip4_spec; 4461 4462 /* IPv4 source address */ 4463 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 4464 new_mask |= I40E_L3_SRC_MASK; 4465 else if (!usr_ip4_spec->ip4src) 4466 new_mask &= ~I40E_L3_SRC_MASK; 4467 else 4468 return -EOPNOTSUPP; 4469 4470 /* IPv4 destination address */ 4471 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 4472 new_mask |= I40E_L3_DST_MASK; 4473 else if (!usr_ip4_spec->ip4dst) 4474 new_mask &= ~I40E_L3_DST_MASK; 4475 else 4476 return -EOPNOTSUPP; 4477 4478 /* First 4 bytes of L4 header */ 4479 if (usr_ip4_spec->l4_4_bytes) 4480 return -EOPNOTSUPP; 4481 4482 /* Filtering on Type of Service is not supported. */ 4483 if (usr_ip4_spec->tos) 4484 return -EOPNOTSUPP; 4485 4486 /* Filtering on IP version is not supported */ 4487 if (usr_ip4_spec->ip_ver) 4488 return -EINVAL; 4489 4490 /* Filtering on L4 protocol is not supported */ 4491 if (usr_ip4_spec->proto) 4492 return -EINVAL; 4493 4494 break; 4495 case IPV6_USER_FLOW: 4496 usr_ip6_spec = &fsp->m_u.usr_ip6_spec; 4497 4498 /* Check if user provided IPv6 source address. */ 4499 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6src, 4500 (struct in6_addr *)&ipv6_full_mask)) 4501 new_mask |= I40E_L3_V6_SRC_MASK; 4502 else if (ipv6_addr_any((struct in6_addr *) 4503 &usr_ip6_spec->ip6src)) 4504 new_mask &= ~I40E_L3_V6_SRC_MASK; 4505 else 4506 return -EOPNOTSUPP; 4507 4508 /* Check if user provided destination address. */ 4509 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6dst, 4510 (struct in6_addr *)&ipv6_full_mask)) 4511 new_mask |= I40E_L3_V6_DST_MASK; 4512 else if (ipv6_addr_any((struct in6_addr *) 4513 &usr_ip6_spec->ip6dst)) 4514 new_mask &= ~I40E_L3_V6_DST_MASK; 4515 else 4516 return -EOPNOTSUPP; 4517 4518 if (usr_ip6_spec->l4_4_bytes) 4519 return -EOPNOTSUPP; 4520 4521 /* Filtering on Traffic class is not supported. */ 4522 if (usr_ip6_spec->tclass) 4523 return -EOPNOTSUPP; 4524 4525 /* Filtering on L4 protocol is not supported */ 4526 if (usr_ip6_spec->l4_proto) 4527 return -EINVAL; 4528 4529 break; 4530 default: 4531 return -EOPNOTSUPP; 4532 } 4533 4534 if (fsp->flow_type & FLOW_EXT) { 4535 /* Allow only 802.1Q and no etype defined, as 4536 * later it's modified to 0x8100 4537 */ 4538 if (fsp->h_ext.vlan_etype != htons(ETH_P_8021Q) && 4539 fsp->h_ext.vlan_etype != 0) 4540 return -EOPNOTSUPP; 4541 if (fsp->m_ext.vlan_tci == htons(0xFFFF)) 4542 new_mask |= I40E_VLAN_SRC_MASK; 4543 else 4544 new_mask &= ~I40E_VLAN_SRC_MASK; 4545 } 4546 4547 /* First, clear all flexible filter entries */ 4548 new_mask &= ~I40E_FLEX_INPUT_MASK; 4549 4550 /* If we have a flexible filter, try to add this offset to the correct 4551 * flexible filter PIT list. Once finished, we can update the mask. 4552 * If the src_offset changed, we will get a new mask value which will 4553 * trigger an input set change. 4554 */ 4555 if (userdef->flex_filter) { 4556 struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL; 4557 4558 /* Flexible offset must be even, since the flexible payload 4559 * must be aligned on 2-byte boundary. 4560 */ 4561 if (userdef->flex_offset & 0x1) { 4562 dev_warn(&pf->pdev->dev, 4563 "Flexible data offset must be 2-byte aligned\n"); 4564 return -EINVAL; 4565 } 4566 4567 src_offset = userdef->flex_offset >> 1; 4568 4569 /* FLX_PIT source offset value is only so large */ 4570 if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) { 4571 dev_warn(&pf->pdev->dev, 4572 "Flexible data must reside within first 64 bytes of the packet payload\n"); 4573 return -EINVAL; 4574 } 4575 4576 /* See if this offset has already been programmed. If we get 4577 * an ERR_PTR, then the filter is not safe to add. Otherwise, 4578 * if we get a NULL pointer, this means we will need to add 4579 * the offset. 4580 */ 4581 flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list, 4582 src_offset); 4583 if (IS_ERR(flex_pit)) 4584 return PTR_ERR(flex_pit); 4585 4586 /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown) 4587 * packet types, and thus we need to program both L3 and L4 4588 * flexible values. These must have identical flexible index, 4589 * as otherwise we can't correctly program the input set. So 4590 * we'll find both an L3 and L4 index and make sure they are 4591 * the same. 4592 */ 4593 if (flex_l3) { 4594 l3_flex_pit = 4595 i40e_find_flex_offset(&pf->l3_flex_pit_list, 4596 src_offset); 4597 if (IS_ERR(l3_flex_pit)) 4598 return PTR_ERR(l3_flex_pit); 4599 4600 if (flex_pit) { 4601 /* If we already had a matching L4 entry, we 4602 * need to make sure that the L3 entry we 4603 * obtained uses the same index. 4604 */ 4605 if (l3_flex_pit) { 4606 if (l3_flex_pit->pit_index != 4607 flex_pit->pit_index) { 4608 return -EINVAL; 4609 } 4610 } else { 4611 new_flex_offset = true; 4612 } 4613 } else { 4614 flex_pit = l3_flex_pit; 4615 } 4616 } 4617 4618 /* If we didn't find an existing flex offset, we need to 4619 * program a new one. However, we don't immediately program it 4620 * here because we will wait to program until after we check 4621 * that it is safe to change the input set. 4622 */ 4623 if (!flex_pit) { 4624 new_flex_offset = true; 4625 pit_index = i40e_unused_pit_index(pf); 4626 } else { 4627 pit_index = flex_pit->pit_index; 4628 } 4629 4630 /* Update the mask with the new offset */ 4631 new_mask |= i40e_pit_index_to_mask(pit_index); 4632 } 4633 4634 /* If the mask and flexible filter offsets for this filter match the 4635 * currently programmed values we don't need any input set change, so 4636 * this filter is safe to install. 4637 */ 4638 if (new_mask == current_mask && !new_flex_offset) 4639 return 0; 4640 4641 netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n", 4642 i40e_flow_str(fsp)); 4643 i40e_print_input_set(vsi, current_mask, new_mask); 4644 if (new_flex_offset) { 4645 netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d", 4646 pit_index, src_offset); 4647 } 4648 4649 /* Hardware input sets are global across multiple ports, so even the 4650 * main port cannot change them when in MFP mode as this would impact 4651 * any filters on the other ports. 4652 */ 4653 if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) { 4654 netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n"); 4655 return -EOPNOTSUPP; 4656 } 4657 4658 /* This filter requires us to update the input set. However, hardware 4659 * only supports one input set per flow type, and does not support 4660 * separate masks for each filter. This means that we can only support 4661 * a single mask for all filters of a specific type. 4662 * 4663 * If we have preexisting filters, they obviously depend on the 4664 * current programmed input set. Display a diagnostic message in this 4665 * case explaining why the filter could not be accepted. 4666 */ 4667 if (*fdir_filter_count) { 4668 netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n", 4669 i40e_flow_str(fsp), 4670 *fdir_filter_count); 4671 return -EOPNOTSUPP; 4672 } 4673 4674 i40e_write_fd_input_set(pf, index, new_mask); 4675 4676 /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented 4677 * frames. If we're programming the input set for IPv4/Other, we also 4678 * need to program the IPv4/Fragmented input set. Since we don't have 4679 * separate support, we'll always assume and enforce that the two flow 4680 * types must have matching input sets. 4681 */ 4682 if (index == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) 4683 i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4, 4684 new_mask); 4685 4686 /* Add the new offset and update table, if necessary */ 4687 if (new_flex_offset) { 4688 err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset, 4689 pit_index); 4690 if (err) 4691 return err; 4692 4693 if (flex_l3) { 4694 err = i40e_add_flex_offset(&pf->l3_flex_pit_list, 4695 src_offset, 4696 pit_index); 4697 if (err) 4698 return err; 4699 } 4700 4701 i40e_reprogram_flex_pit(pf); 4702 } 4703 4704 return 0; 4705 } 4706 4707 /** 4708 * i40e_match_fdir_filter - Return true of two filters match 4709 * @a: pointer to filter struct 4710 * @b: pointer to filter struct 4711 * 4712 * Returns true if the two filters match exactly the same criteria. I.e. they 4713 * match the same flow type and have the same parameters. We don't need to 4714 * check any input-set since all filters of the same flow type must use the 4715 * same input set. 4716 **/ 4717 static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a, 4718 struct i40e_fdir_filter *b) 4719 { 4720 /* The filters do not much if any of these criteria differ. */ 4721 if (a->dst_ip != b->dst_ip || 4722 a->src_ip != b->src_ip || 4723 a->dst_port != b->dst_port || 4724 a->src_port != b->src_port || 4725 a->flow_type != b->flow_type || 4726 a->ipl4_proto != b->ipl4_proto || 4727 a->vlan_tag != b->vlan_tag || 4728 a->vlan_etype != b->vlan_etype) 4729 return false; 4730 4731 return true; 4732 } 4733 4734 /** 4735 * i40e_disallow_matching_filters - Check that new filters differ 4736 * @vsi: pointer to the targeted VSI 4737 * @input: new filter to check 4738 * 4739 * Due to hardware limitations, it is not possible for two filters that match 4740 * similar criteria to be programmed at the same time. This is true for a few 4741 * reasons: 4742 * 4743 * (a) all filters matching a particular flow type must use the same input 4744 * set, that is they must match the same criteria. 4745 * (b) different flow types will never match the same packet, as the flow type 4746 * is decided by hardware before checking which rules apply. 4747 * (c) hardware has no way to distinguish which order filters apply in. 4748 * 4749 * Due to this, we can't really support using the location data to order 4750 * filters in the hardware parsing. It is technically possible for the user to 4751 * request two filters matching the same criteria but which select different 4752 * queues. In this case, rather than keep both filters in the list, we reject 4753 * the 2nd filter when the user requests adding it. 4754 * 4755 * This avoids needing to track location for programming the filter to 4756 * hardware, and ensures that we avoid some strange scenarios involving 4757 * deleting filters which match the same criteria. 4758 **/ 4759 static int i40e_disallow_matching_filters(struct i40e_vsi *vsi, 4760 struct i40e_fdir_filter *input) 4761 { 4762 struct i40e_pf *pf = vsi->back; 4763 struct i40e_fdir_filter *rule; 4764 struct hlist_node *node2; 4765 4766 /* Loop through every filter, and check that it doesn't match */ 4767 hlist_for_each_entry_safe(rule, node2, 4768 &pf->fdir_filter_list, fdir_node) { 4769 /* Don't check the filters match if they share the same fd_id, 4770 * since the new filter is actually just updating the target 4771 * of the old filter. 4772 */ 4773 if (rule->fd_id == input->fd_id) 4774 continue; 4775 4776 /* If any filters match, then print a warning message to the 4777 * kernel message buffer and bail out. 4778 */ 4779 if (i40e_match_fdir_filter(rule, input)) { 4780 dev_warn(&pf->pdev->dev, 4781 "Existing user defined filter %d already matches this flow.\n", 4782 rule->fd_id); 4783 return -EINVAL; 4784 } 4785 } 4786 4787 return 0; 4788 } 4789 4790 /** 4791 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters 4792 * @vsi: pointer to the targeted VSI 4793 * @cmd: command to get or set RX flow classification rules 4794 * 4795 * Add Flow Director filters for a specific flow spec based on their 4796 * protocol. Returns 0 if the filters were successfully added. 4797 **/ 4798 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi, 4799 struct ethtool_rxnfc *cmd) 4800 { 4801 struct i40e_rx_flow_userdef userdef; 4802 struct ethtool_rx_flow_spec *fsp; 4803 struct i40e_fdir_filter *input; 4804 u16 dest_vsi = 0, q_index = 0; 4805 struct i40e_pf *pf; 4806 int ret = -EINVAL; 4807 u8 dest_ctl; 4808 4809 if (!vsi) 4810 return -EINVAL; 4811 pf = vsi->back; 4812 4813 if (!test_bit(I40E_FLAG_FD_SB_ENA, pf->flags)) 4814 return -EOPNOTSUPP; 4815 4816 if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state)) 4817 return -ENOSPC; 4818 4819 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 4820 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 4821 return -EBUSY; 4822 4823 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 4824 return -EBUSY; 4825 4826 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs; 4827 4828 /* Parse the user-defined field */ 4829 if (i40e_parse_rx_flow_user_data(fsp, &userdef)) 4830 return -EINVAL; 4831 4832 /* Extended MAC field is not supported */ 4833 if (fsp->flow_type & FLOW_MAC_EXT) 4834 return -EINVAL; 4835 4836 ret = i40e_check_fdir_input_set(vsi, fsp, &userdef); 4837 if (ret) 4838 return ret; 4839 4840 if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort + 4841 pf->hw.func_caps.fd_filters_guaranteed)) { 4842 return -EINVAL; 4843 } 4844 4845 /* ring_cookie is either the drop index, or is a mask of the queue 4846 * index and VF id we wish to target. 4847 */ 4848 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) { 4849 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 4850 } else { 4851 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie); 4852 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie); 4853 4854 if (!vf) { 4855 if (ring >= vsi->num_queue_pairs) 4856 return -EINVAL; 4857 dest_vsi = vsi->id; 4858 } else { 4859 /* VFs are zero-indexed, so we subtract one here */ 4860 vf--; 4861 4862 if (vf >= pf->num_alloc_vfs) 4863 return -EINVAL; 4864 if (ring >= pf->vf[vf].num_queue_pairs) 4865 return -EINVAL; 4866 dest_vsi = pf->vf[vf].lan_vsi_id; 4867 } 4868 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX; 4869 q_index = ring; 4870 } 4871 4872 input = kzalloc(sizeof(*input), GFP_KERNEL); 4873 4874 if (!input) 4875 return -ENOMEM; 4876 4877 input->fd_id = fsp->location; 4878 input->q_index = q_index; 4879 input->dest_vsi = dest_vsi; 4880 input->dest_ctl = dest_ctl; 4881 input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID; 4882 input->cnt_index = I40E_FD_SB_STAT_IDX(pf->hw.pf_id); 4883 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4884 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4885 input->flow_type = fsp->flow_type & ~FLOW_EXT; 4886 4887 input->vlan_etype = fsp->h_ext.vlan_etype; 4888 if (!fsp->m_ext.vlan_etype && fsp->h_ext.vlan_tci) 4889 input->vlan_etype = cpu_to_be16(ETH_P_8021Q); 4890 if (fsp->m_ext.vlan_tci && input->vlan_etype) 4891 input->vlan_tag = fsp->h_ext.vlan_tci; 4892 if (input->flow_type == IPV6_USER_FLOW || 4893 input->flow_type == UDP_V6_FLOW || 4894 input->flow_type == TCP_V6_FLOW || 4895 input->flow_type == SCTP_V6_FLOW) { 4896 /* Reverse the src and dest notion, since the HW expects them 4897 * to be from Tx perspective where as the input from user is 4898 * from Rx filter view. 4899 */ 4900 input->ipl4_proto = fsp->h_u.usr_ip6_spec.l4_proto; 4901 input->dst_port = fsp->h_u.tcp_ip6_spec.psrc; 4902 input->src_port = fsp->h_u.tcp_ip6_spec.pdst; 4903 memcpy(input->dst_ip6, fsp->h_u.ah_ip6_spec.ip6src, 4904 sizeof(__be32) * 4); 4905 memcpy(input->src_ip6, fsp->h_u.ah_ip6_spec.ip6dst, 4906 sizeof(__be32) * 4); 4907 } else { 4908 /* Reverse the src and dest notion, since the HW expects them 4909 * to be from Tx perspective where as the input from user is 4910 * from Rx filter view. 4911 */ 4912 input->ipl4_proto = fsp->h_u.usr_ip4_spec.proto; 4913 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc; 4914 input->src_port = fsp->h_u.tcp_ip4_spec.pdst; 4915 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4916 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4917 } 4918 4919 if (userdef.flex_filter) { 4920 input->flex_filter = true; 4921 input->flex_word = cpu_to_be16(userdef.flex_word); 4922 input->flex_offset = userdef.flex_offset; 4923 } 4924 4925 /* Avoid programming two filters with identical match criteria. */ 4926 ret = i40e_disallow_matching_filters(vsi, input); 4927 if (ret) 4928 goto free_filter_memory; 4929 4930 /* Add the input filter to the fdir_input_list, possibly replacing 4931 * a previous filter. Do not free the input structure after adding it 4932 * to the list as this would cause a use-after-free bug. 4933 */ 4934 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL); 4935 ret = i40e_add_del_fdir(vsi, input, true); 4936 if (ret) 4937 goto remove_sw_rule; 4938 return 0; 4939 4940 remove_sw_rule: 4941 hlist_del(&input->fdir_node); 4942 pf->fdir_pf_active_filters--; 4943 free_filter_memory: 4944 kfree(input); 4945 return ret; 4946 } 4947 4948 /** 4949 * i40e_set_rxnfc - command to set RX flow classification rules 4950 * @netdev: network interface device structure 4951 * @cmd: ethtool rxnfc command 4952 * 4953 * Returns Success if the command is supported. 4954 **/ 4955 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd) 4956 { 4957 struct i40e_netdev_priv *np = netdev_priv(netdev); 4958 struct i40e_vsi *vsi = np->vsi; 4959 struct i40e_pf *pf = vsi->back; 4960 int ret = -EOPNOTSUPP; 4961 4962 switch (cmd->cmd) { 4963 case ETHTOOL_SRXFH: 4964 ret = i40e_set_rss_hash_opt(pf, cmd); 4965 break; 4966 case ETHTOOL_SRXCLSRLINS: 4967 ret = i40e_add_fdir_ethtool(vsi, cmd); 4968 break; 4969 case ETHTOOL_SRXCLSRLDEL: 4970 ret = i40e_del_fdir_entry(vsi, cmd); 4971 break; 4972 default: 4973 break; 4974 } 4975 4976 return ret; 4977 } 4978 4979 /** 4980 * i40e_max_channels - get Max number of combined channels supported 4981 * @vsi: vsi pointer 4982 **/ 4983 static unsigned int i40e_max_channels(struct i40e_vsi *vsi) 4984 { 4985 /* TODO: This code assumes DCB and FD is disabled for now. */ 4986 return vsi->alloc_queue_pairs; 4987 } 4988 4989 /** 4990 * i40e_get_channels - Get the current channels enabled and max supported etc. 4991 * @dev: network interface device structure 4992 * @ch: ethtool channels structure 4993 * 4994 * We don't support separate tx and rx queues as channels. The other count 4995 * represents how many queues are being used for control. max_combined counts 4996 * how many queue pairs we can support. They may not be mapped 1 to 1 with 4997 * q_vectors since we support a lot more queue pairs than q_vectors. 4998 **/ 4999 static void i40e_get_channels(struct net_device *dev, 5000 struct ethtool_channels *ch) 5001 { 5002 struct i40e_netdev_priv *np = netdev_priv(dev); 5003 struct i40e_vsi *vsi = np->vsi; 5004 struct i40e_pf *pf = vsi->back; 5005 5006 /* report maximum channels */ 5007 ch->max_combined = i40e_max_channels(vsi); 5008 5009 /* report info for other vector */ 5010 ch->other_count = test_bit(I40E_FLAG_FD_SB_ENA, pf->flags) ? 1 : 0; 5011 ch->max_other = ch->other_count; 5012 5013 /* Note: This code assumes DCB is disabled for now. */ 5014 ch->combined_count = vsi->num_queue_pairs; 5015 } 5016 5017 /** 5018 * i40e_set_channels - Set the new channels count. 5019 * @dev: network interface device structure 5020 * @ch: ethtool channels structure 5021 * 5022 * The new channels count may not be the same as requested by the user 5023 * since it gets rounded down to a power of 2 value. 5024 **/ 5025 static int i40e_set_channels(struct net_device *dev, 5026 struct ethtool_channels *ch) 5027 { 5028 const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 5029 struct i40e_netdev_priv *np = netdev_priv(dev); 5030 unsigned int count = ch->combined_count; 5031 struct i40e_vsi *vsi = np->vsi; 5032 struct i40e_pf *pf = vsi->back; 5033 struct i40e_fdir_filter *rule; 5034 struct hlist_node *node2; 5035 int new_count; 5036 int err = 0; 5037 5038 /* We do not support setting channels for any other VSI at present */ 5039 if (vsi->type != I40E_VSI_MAIN) 5040 return -EINVAL; 5041 5042 /* We do not support setting channels via ethtool when TCs are 5043 * configured through mqprio 5044 */ 5045 if (i40e_is_tc_mqprio_enabled(pf)) 5046 return -EINVAL; 5047 5048 /* verify they are not requesting separate vectors */ 5049 if (!count || ch->rx_count || ch->tx_count) 5050 return -EINVAL; 5051 5052 /* verify other_count has not changed */ 5053 if (ch->other_count != (test_bit(I40E_FLAG_FD_SB_ENA, pf->flags) ? 1 : 0)) 5054 return -EINVAL; 5055 5056 /* verify the number of channels does not exceed hardware limits */ 5057 if (count > i40e_max_channels(vsi)) 5058 return -EINVAL; 5059 5060 /* verify that the number of channels does not invalidate any current 5061 * flow director rules 5062 */ 5063 hlist_for_each_entry_safe(rule, node2, 5064 &pf->fdir_filter_list, fdir_node) { 5065 if (rule->dest_ctl != drop && count <= rule->q_index) { 5066 dev_warn(&pf->pdev->dev, 5067 "Existing user defined filter %d assigns flow to queue %d\n", 5068 rule->fd_id, rule->q_index); 5069 err = -EINVAL; 5070 } 5071 } 5072 5073 if (err) { 5074 dev_err(&pf->pdev->dev, 5075 "Existing filter rules must be deleted to reduce combined channel count to %d\n", 5076 count); 5077 return err; 5078 } 5079 5080 /* update feature limits from largest to smallest supported values */ 5081 /* TODO: Flow director limit, DCB etc */ 5082 5083 /* use rss_reconfig to rebuild with new queue count and update traffic 5084 * class queue mapping 5085 */ 5086 new_count = i40e_reconfig_rss_queues(pf, count); 5087 if (new_count > 0) 5088 return 0; 5089 else 5090 return -EINVAL; 5091 } 5092 5093 /** 5094 * i40e_get_rxfh_key_size - get the RSS hash key size 5095 * @netdev: network interface device structure 5096 * 5097 * Returns the table size. 5098 **/ 5099 static u32 i40e_get_rxfh_key_size(struct net_device *netdev) 5100 { 5101 return I40E_HKEY_ARRAY_SIZE; 5102 } 5103 5104 /** 5105 * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size 5106 * @netdev: network interface device structure 5107 * 5108 * Returns the table size. 5109 **/ 5110 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev) 5111 { 5112 return I40E_HLUT_ARRAY_SIZE; 5113 } 5114 5115 /** 5116 * i40e_get_rxfh - get the rx flow hash indirection table 5117 * @netdev: network interface device structure 5118 * @rxfh: pointer to param struct (indir, key, hfunc) 5119 * 5120 * Reads the indirection table directly from the hardware. Returns 0 on 5121 * success. 5122 **/ 5123 static int i40e_get_rxfh(struct net_device *netdev, 5124 struct ethtool_rxfh_param *rxfh) 5125 { 5126 struct i40e_netdev_priv *np = netdev_priv(netdev); 5127 struct i40e_vsi *vsi = np->vsi; 5128 u8 *lut, *seed = NULL; 5129 int ret; 5130 u16 i; 5131 5132 rxfh->hfunc = ETH_RSS_HASH_TOP; 5133 5134 if (!rxfh->indir) 5135 return 0; 5136 5137 seed = rxfh->key; 5138 lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 5139 if (!lut) 5140 return -ENOMEM; 5141 ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE); 5142 if (ret) 5143 goto out; 5144 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 5145 rxfh->indir[i] = (u32)(lut[i]); 5146 5147 out: 5148 kfree(lut); 5149 5150 return ret; 5151 } 5152 5153 /** 5154 * i40e_set_rxfh - set the rx flow hash indirection table 5155 * @netdev: network interface device structure 5156 * @rxfh: pointer to param struct (indir, key, hfunc) 5157 * @extack: extended ACK from the Netlink message 5158 * 5159 * Returns -EINVAL if the table specifies an invalid queue id, otherwise 5160 * returns 0 after programming the table. 5161 **/ 5162 static int i40e_set_rxfh(struct net_device *netdev, 5163 struct ethtool_rxfh_param *rxfh, 5164 struct netlink_ext_ack *extack) 5165 { 5166 struct i40e_netdev_priv *np = netdev_priv(netdev); 5167 struct i40e_vsi *vsi = np->vsi; 5168 struct i40e_pf *pf = vsi->back; 5169 u8 *seed = NULL; 5170 u16 i; 5171 5172 if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE && 5173 rxfh->hfunc != ETH_RSS_HASH_TOP) 5174 return -EOPNOTSUPP; 5175 5176 if (rxfh->key) { 5177 if (!vsi->rss_hkey_user) { 5178 vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE, 5179 GFP_KERNEL); 5180 if (!vsi->rss_hkey_user) 5181 return -ENOMEM; 5182 } 5183 memcpy(vsi->rss_hkey_user, rxfh->key, I40E_HKEY_ARRAY_SIZE); 5184 seed = vsi->rss_hkey_user; 5185 } 5186 if (!vsi->rss_lut_user) { 5187 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 5188 if (!vsi->rss_lut_user) 5189 return -ENOMEM; 5190 } 5191 5192 /* Each 32 bits pointed by 'indir' is stored with a lut entry */ 5193 if (rxfh->indir) 5194 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 5195 vsi->rss_lut_user[i] = (u8)(rxfh->indir[i]); 5196 else 5197 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE, 5198 vsi->rss_size); 5199 5200 return i40e_config_rss(vsi, seed, vsi->rss_lut_user, 5201 I40E_HLUT_ARRAY_SIZE); 5202 } 5203 5204 /** 5205 * i40e_get_priv_flags - report device private flags 5206 * @dev: network interface device structure 5207 * 5208 * The get string set count and the string set should be matched for each 5209 * flag returned. Add new strings for each flag to the i40e_gstrings_priv_flags 5210 * array. 5211 * 5212 * Returns a u32 bitmap of flags. 5213 **/ 5214 static u32 i40e_get_priv_flags(struct net_device *dev) 5215 { 5216 struct i40e_netdev_priv *np = netdev_priv(dev); 5217 struct i40e_vsi *vsi = np->vsi; 5218 struct i40e_pf *pf = vsi->back; 5219 u32 i, j, ret_flags = 0; 5220 5221 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 5222 const struct i40e_priv_flags *priv_flag; 5223 5224 priv_flag = &i40e_gstrings_priv_flags[i]; 5225 5226 if (test_bit(priv_flag->bitno, pf->flags)) 5227 ret_flags |= BIT(i); 5228 } 5229 5230 if (pf->hw.pf_id != 0) 5231 return ret_flags; 5232 5233 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 5234 const struct i40e_priv_flags *priv_flag; 5235 5236 priv_flag = &i40e_gl_gstrings_priv_flags[j]; 5237 5238 if (test_bit(priv_flag->bitno, pf->flags)) 5239 ret_flags |= BIT(i + j); 5240 } 5241 5242 return ret_flags; 5243 } 5244 5245 /** 5246 * i40e_set_priv_flags - set private flags 5247 * @dev: network interface device structure 5248 * @flags: bit flags to be set 5249 **/ 5250 static int i40e_set_priv_flags(struct net_device *dev, u32 flags) 5251 { 5252 DECLARE_BITMAP(changed_flags, I40E_PF_FLAGS_NBITS); 5253 DECLARE_BITMAP(orig_flags, I40E_PF_FLAGS_NBITS); 5254 DECLARE_BITMAP(new_flags, I40E_PF_FLAGS_NBITS); 5255 struct i40e_netdev_priv *np = netdev_priv(dev); 5256 enum i40e_admin_queue_err adq_err; 5257 struct i40e_vsi *vsi = np->vsi; 5258 struct i40e_pf *pf = vsi->back; 5259 u32 reset_needed = 0; 5260 int status; 5261 u32 i, j; 5262 5263 bitmap_copy(orig_flags, pf->flags, I40E_PF_FLAGS_NBITS); 5264 bitmap_copy(new_flags, pf->flags, I40E_PF_FLAGS_NBITS); 5265 5266 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 5267 const struct i40e_priv_flags *priv_flag; 5268 bool new_val; 5269 5270 priv_flag = &i40e_gstrings_priv_flags[i]; 5271 new_val = (flags & BIT(i)) ? true : false; 5272 5273 /* If this is a read-only flag, it can't be changed */ 5274 if (priv_flag->read_only && 5275 test_bit(priv_flag->bitno, orig_flags) != new_val) 5276 return -EOPNOTSUPP; 5277 5278 if (new_val) 5279 set_bit(priv_flag->bitno, new_flags); 5280 else 5281 clear_bit(priv_flag->bitno, new_flags); 5282 } 5283 5284 if (pf->hw.pf_id != 0) 5285 goto flags_complete; 5286 5287 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 5288 const struct i40e_priv_flags *priv_flag; 5289 bool new_val; 5290 5291 priv_flag = &i40e_gl_gstrings_priv_flags[j]; 5292 new_val = (flags & BIT(i + j)) ? true : false; 5293 5294 /* If this is a read-only flag, it can't be changed */ 5295 if (priv_flag->read_only && 5296 test_bit(priv_flag->bitno, orig_flags) != new_val) 5297 return -EOPNOTSUPP; 5298 5299 if (new_val) 5300 set_bit(priv_flag->bitno, new_flags); 5301 else 5302 clear_bit(priv_flag->bitno, new_flags); 5303 } 5304 5305 flags_complete: 5306 bitmap_xor(changed_flags, pf->flags, orig_flags, I40E_PF_FLAGS_NBITS); 5307 5308 if (test_bit(I40E_FLAG_FW_LLDP_DIS, changed_flags)) 5309 reset_needed = I40E_PF_RESET_AND_REBUILD_FLAG; 5310 5311 if (test_bit(I40E_FLAG_VEB_STATS_ENA, changed_flags) || 5312 test_bit(I40E_FLAG_LEGACY_RX_ENA, changed_flags) || 5313 test_bit(I40E_FLAG_SOURCE_PRUNING_DIS, changed_flags)) 5314 reset_needed = BIT(__I40E_PF_RESET_REQUESTED); 5315 5316 /* Before we finalize any flag changes, we need to perform some 5317 * checks to ensure that the changes are supported and safe. 5318 */ 5319 5320 /* ATR eviction is not supported on all devices */ 5321 if (test_bit(I40E_FLAG_HW_ATR_EVICT_ENA, new_flags) && 5322 !test_bit(I40E_HW_CAP_ATR_EVICT, pf->hw.caps)) 5323 return -EOPNOTSUPP; 5324 5325 /* If the driver detected FW LLDP was disabled on init, this flag could 5326 * be set, however we do not support _changing_ the flag: 5327 * - on XL710 if NPAR is enabled or FW API version < 1.7 5328 * - on X722 with FW API version < 1.6 5329 * There are situations where older FW versions/NPAR enabled PFs could 5330 * disable LLDP, however we _must_ not allow the user to enable/disable 5331 * LLDP with this flag on unsupported FW versions. 5332 */ 5333 if (test_bit(I40E_FLAG_FW_LLDP_DIS, changed_flags) && 5334 !test_bit(I40E_HW_CAP_FW_LLDP_STOPPABLE, pf->hw.caps)) { 5335 dev_warn(&pf->pdev->dev, 5336 "Device does not support changing FW LLDP\n"); 5337 return -EOPNOTSUPP; 5338 } 5339 5340 if (test_bit(I40E_FLAG_RS_FEC, changed_flags) && 5341 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && 5342 pf->hw.device_id != I40E_DEV_ID_25G_B) { 5343 dev_warn(&pf->pdev->dev, 5344 "Device does not support changing FEC configuration\n"); 5345 return -EOPNOTSUPP; 5346 } 5347 5348 if (test_bit(I40E_FLAG_BASE_R_FEC, changed_flags) && 5349 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && 5350 pf->hw.device_id != I40E_DEV_ID_25G_B && 5351 pf->hw.device_id != I40E_DEV_ID_KX_X722) { 5352 dev_warn(&pf->pdev->dev, 5353 "Device does not support changing FEC configuration\n"); 5354 return -EOPNOTSUPP; 5355 } 5356 5357 /* Process any additional changes needed as a result of flag changes. 5358 * The changed_flags value reflects the list of bits that were 5359 * changed in the code above. 5360 */ 5361 5362 /* Flush current ATR settings if ATR was disabled */ 5363 if (test_bit(I40E_FLAG_FD_ATR_ENA, changed_flags) && 5364 !test_bit(I40E_FLAG_FD_ATR_ENA, new_flags)) { 5365 set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state); 5366 set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state); 5367 } 5368 5369 if (test_bit(I40E_FLAG_TRUE_PROMISC_ENA, changed_flags)) { 5370 u16 sw_flags = 0, valid_flags = 0; 5371 int ret; 5372 5373 if (!test_bit(I40E_FLAG_TRUE_PROMISC_ENA, new_flags)) 5374 sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 5375 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 5376 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags, 5377 0, NULL); 5378 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) { 5379 dev_info(&pf->pdev->dev, 5380 "couldn't set switch config bits, err %pe aq_err %s\n", 5381 ERR_PTR(ret), 5382 i40e_aq_str(&pf->hw, 5383 pf->hw.aq.asq_last_status)); 5384 /* not a fatal problem, just keep going */ 5385 } 5386 } 5387 5388 if (test_bit(I40E_FLAG_RS_FEC, changed_flags) || 5389 test_bit(I40E_FLAG_BASE_R_FEC, changed_flags)) { 5390 u8 fec_cfg = 0; 5391 5392 if (test_bit(I40E_FLAG_RS_FEC, new_flags) && 5393 test_bit(I40E_FLAG_BASE_R_FEC, new_flags)) { 5394 fec_cfg = I40E_AQ_SET_FEC_AUTO; 5395 } else if (test_bit(I40E_FLAG_RS_FEC, new_flags)) { 5396 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS | 5397 I40E_AQ_SET_FEC_ABILITY_RS); 5398 } else if (test_bit(I40E_FLAG_BASE_R_FEC, new_flags)) { 5399 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR | 5400 I40E_AQ_SET_FEC_ABILITY_KR); 5401 } 5402 if (i40e_set_fec_cfg(dev, fec_cfg)) 5403 dev_warn(&pf->pdev->dev, "Cannot change FEC config\n"); 5404 } 5405 5406 if (test_bit(I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, changed_flags) && 5407 test_bit(I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENA, orig_flags)) { 5408 dev_err(&pf->pdev->dev, 5409 "Setting link-down-on-close not supported on this port (because total-port-shutdown is enabled)\n"); 5410 return -EOPNOTSUPP; 5411 } 5412 5413 if (test_bit(I40E_FLAG_VF_VLAN_PRUNING_ENA, changed_flags) && 5414 pf->num_alloc_vfs) { 5415 dev_warn(&pf->pdev->dev, 5416 "Changing vf-vlan-pruning flag while VF(s) are active is not supported\n"); 5417 return -EOPNOTSUPP; 5418 } 5419 5420 if (test_bit(I40E_FLAG_LEGACY_RX_ENA, changed_flags) && 5421 I40E_2K_TOO_SMALL_WITH_PADDING) { 5422 dev_warn(&pf->pdev->dev, 5423 "2k Rx buffer is too small to fit standard MTU and skb_shared_info\n"); 5424 return -EOPNOTSUPP; 5425 } 5426 5427 if (test_bit(I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, changed_flags) && 5428 test_bit(I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, new_flags) && 5429 test_bit(I40E_FLAG_MFP_ENA, new_flags)) 5430 dev_warn(&pf->pdev->dev, 5431 "Turning on link-down-on-close flag may affect other partitions\n"); 5432 5433 if (test_bit(I40E_FLAG_FW_LLDP_DIS, changed_flags)) { 5434 if (test_bit(I40E_FLAG_FW_LLDP_DIS, new_flags)) { 5435 #ifdef CONFIG_I40E_DCB 5436 i40e_dcb_sw_default_config(pf); 5437 #endif /* CONFIG_I40E_DCB */ 5438 i40e_aq_cfg_lldp_mib_change_event(&pf->hw, false, NULL); 5439 i40e_aq_stop_lldp(&pf->hw, true, false, NULL); 5440 } else { 5441 status = i40e_aq_start_lldp(&pf->hw, false, NULL); 5442 if (status) { 5443 adq_err = pf->hw.aq.asq_last_status; 5444 switch (adq_err) { 5445 case I40E_AQ_RC_EEXIST: 5446 dev_warn(&pf->pdev->dev, 5447 "FW LLDP agent is already running\n"); 5448 reset_needed = 0; 5449 break; 5450 case I40E_AQ_RC_EPERM: 5451 dev_warn(&pf->pdev->dev, 5452 "Device configuration forbids SW from starting the LLDP agent.\n"); 5453 return -EINVAL; 5454 case I40E_AQ_RC_EAGAIN: 5455 dev_warn(&pf->pdev->dev, 5456 "Stop FW LLDP agent command is still being processed, please try again in a second.\n"); 5457 return -EBUSY; 5458 default: 5459 dev_warn(&pf->pdev->dev, 5460 "Starting FW LLDP agent failed: error: %pe, %s\n", 5461 ERR_PTR(status), 5462 i40e_aq_str(&pf->hw, 5463 adq_err)); 5464 return -EINVAL; 5465 } 5466 } 5467 } 5468 } 5469 5470 /* Now that we've checked to ensure that the new flags are valid, load 5471 * them into place. Since we only modify flags either (a) during 5472 * initialization or (b) while holding the RTNL lock, we don't need 5473 * anything fancy here. 5474 */ 5475 bitmap_copy(pf->flags, new_flags, I40E_PF_FLAGS_NBITS); 5476 5477 /* Issue reset to cause things to take effect, as additional bits 5478 * are added we will need to create a mask of bits requiring reset 5479 */ 5480 if (reset_needed) 5481 i40e_do_reset(pf, reset_needed, true); 5482 5483 return 0; 5484 } 5485 5486 /** 5487 * i40e_get_module_info - get (Q)SFP+ module type info 5488 * @netdev: network interface device structure 5489 * @modinfo: module EEPROM size and layout information structure 5490 **/ 5491 static int i40e_get_module_info(struct net_device *netdev, 5492 struct ethtool_modinfo *modinfo) 5493 { 5494 struct i40e_netdev_priv *np = netdev_priv(netdev); 5495 struct i40e_vsi *vsi = np->vsi; 5496 struct i40e_pf *pf = vsi->back; 5497 struct i40e_hw *hw = &pf->hw; 5498 u32 sff8472_comp = 0; 5499 u32 sff8472_swap = 0; 5500 u32 sff8636_rev = 0; 5501 u32 type = 0; 5502 int status; 5503 5504 /* Check if firmware supports reading module EEPROM. */ 5505 if (!test_bit(I40E_HW_CAP_AQ_PHY_ACCESS, hw->caps)) { 5506 netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n"); 5507 return -EINVAL; 5508 } 5509 5510 status = i40e_update_link_info(hw); 5511 if (status) 5512 return -EIO; 5513 5514 if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) { 5515 netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n"); 5516 return -EINVAL; 5517 } 5518 5519 type = hw->phy.link_info.module_type[0]; 5520 5521 switch (type) { 5522 case I40E_MODULE_TYPE_SFP: 5523 status = i40e_aq_get_phy_register(hw, 5524 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5525 I40E_I2C_EEPROM_DEV_ADDR, true, 5526 I40E_MODULE_SFF_8472_COMP, 5527 &sff8472_comp, NULL); 5528 if (status) 5529 return -EIO; 5530 5531 status = i40e_aq_get_phy_register(hw, 5532 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5533 I40E_I2C_EEPROM_DEV_ADDR, true, 5534 I40E_MODULE_SFF_8472_SWAP, 5535 &sff8472_swap, NULL); 5536 if (status) 5537 return -EIO; 5538 5539 /* Check if the module requires address swap to access 5540 * the other EEPROM memory page. 5541 */ 5542 if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) { 5543 netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n"); 5544 modinfo->type = ETH_MODULE_SFF_8079; 5545 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5546 } else if (sff8472_comp == 0x00) { 5547 /* Module is not SFF-8472 compliant */ 5548 modinfo->type = ETH_MODULE_SFF_8079; 5549 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5550 } else if (!(sff8472_swap & I40E_MODULE_SFF_DDM_IMPLEMENTED)) { 5551 /* Module is SFF-8472 compliant but doesn't implement 5552 * Digital Diagnostic Monitoring (DDM). 5553 */ 5554 modinfo->type = ETH_MODULE_SFF_8079; 5555 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5556 } else { 5557 modinfo->type = ETH_MODULE_SFF_8472; 5558 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; 5559 } 5560 break; 5561 case I40E_MODULE_TYPE_QSFP_PLUS: 5562 /* Read from memory page 0. */ 5563 status = i40e_aq_get_phy_register(hw, 5564 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5565 0, true, 5566 I40E_MODULE_REVISION_ADDR, 5567 &sff8636_rev, NULL); 5568 if (status) 5569 return -EIO; 5570 /* Determine revision compliance byte */ 5571 if (sff8636_rev > 0x02) { 5572 /* Module is SFF-8636 compliant */ 5573 modinfo->type = ETH_MODULE_SFF_8636; 5574 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5575 } else { 5576 modinfo->type = ETH_MODULE_SFF_8436; 5577 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5578 } 5579 break; 5580 case I40E_MODULE_TYPE_QSFP28: 5581 modinfo->type = ETH_MODULE_SFF_8636; 5582 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5583 break; 5584 default: 5585 netdev_dbg(vsi->netdev, "SFP module type unrecognized or no SFP connector used.\n"); 5586 return -EOPNOTSUPP; 5587 } 5588 return 0; 5589 } 5590 5591 /** 5592 * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents 5593 * @netdev: network interface device structure 5594 * @ee: EEPROM dump request structure 5595 * @data: buffer to be filled with EEPROM contents 5596 **/ 5597 static int i40e_get_module_eeprom(struct net_device *netdev, 5598 struct ethtool_eeprom *ee, 5599 u8 *data) 5600 { 5601 struct i40e_netdev_priv *np = netdev_priv(netdev); 5602 struct i40e_vsi *vsi = np->vsi; 5603 struct i40e_pf *pf = vsi->back; 5604 struct i40e_hw *hw = &pf->hw; 5605 bool is_sfp = false; 5606 u32 value = 0; 5607 int status; 5608 int i; 5609 5610 if (!ee || !ee->len || !data) 5611 return -EINVAL; 5612 5613 if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP) 5614 is_sfp = true; 5615 5616 for (i = 0; i < ee->len; i++) { 5617 u32 offset = i + ee->offset; 5618 u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0; 5619 5620 /* Check if we need to access the other memory page */ 5621 if (is_sfp) { 5622 if (offset >= ETH_MODULE_SFF_8079_LEN) { 5623 offset -= ETH_MODULE_SFF_8079_LEN; 5624 addr = I40E_I2C_EEPROM_DEV_ADDR2; 5625 } 5626 } else { 5627 while (offset >= ETH_MODULE_SFF_8436_LEN) { 5628 /* Compute memory page number and offset. */ 5629 offset -= ETH_MODULE_SFF_8436_LEN / 2; 5630 addr++; 5631 } 5632 } 5633 5634 status = i40e_aq_get_phy_register(hw, 5635 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5636 addr, true, offset, &value, NULL); 5637 if (status) 5638 return -EIO; 5639 data[i] = value; 5640 } 5641 return 0; 5642 } 5643 5644 static int i40e_get_eee(struct net_device *netdev, struct ethtool_keee *edata) 5645 { 5646 struct i40e_netdev_priv *np = netdev_priv(netdev); 5647 struct i40e_aq_get_phy_abilities_resp phy_cfg; 5648 struct i40e_vsi *vsi = np->vsi; 5649 struct i40e_pf *pf = vsi->back; 5650 struct i40e_hw *hw = &pf->hw; 5651 int status = 0; 5652 5653 /* Get initial PHY capabilities */ 5654 status = i40e_aq_get_phy_capabilities(hw, false, true, &phy_cfg, NULL); 5655 if (status) 5656 return -EAGAIN; 5657 5658 /* Check whether NIC configuration is compatible with Energy Efficient 5659 * Ethernet (EEE) mode. 5660 */ 5661 if (phy_cfg.eee_capability == 0) 5662 return -EOPNOTSUPP; 5663 5664 /* Get current configuration */ 5665 status = i40e_aq_get_phy_capabilities(hw, false, false, &phy_cfg, NULL); 5666 if (status) 5667 return -EAGAIN; 5668 5669 edata->eee_enabled = !!phy_cfg.eee_capability; 5670 edata->tx_lpi_enabled = pf->stats.tx_lpi_status; 5671 5672 edata->eee_active = pf->stats.tx_lpi_status && pf->stats.rx_lpi_status; 5673 5674 return 0; 5675 } 5676 5677 static int i40e_is_eee_param_supported(struct net_device *netdev, 5678 struct ethtool_keee *edata) 5679 { 5680 struct i40e_netdev_priv *np = netdev_priv(netdev); 5681 struct i40e_vsi *vsi = np->vsi; 5682 struct i40e_pf *pf = vsi->back; 5683 struct i40e_ethtool_not_used { 5684 u32 value; 5685 const char *name; 5686 } param[] = { 5687 {edata->tx_lpi_timer, "tx-timer"}, 5688 {edata->tx_lpi_enabled != pf->stats.tx_lpi_status, "tx-lpi"} 5689 }; 5690 int i; 5691 5692 for (i = 0; i < ARRAY_SIZE(param); i++) { 5693 if (param[i].value) { 5694 netdev_info(netdev, 5695 "EEE setting %s not supported\n", 5696 param[i].name); 5697 return -EOPNOTSUPP; 5698 } 5699 } 5700 5701 return 0; 5702 } 5703 5704 static int i40e_set_eee(struct net_device *netdev, struct ethtool_keee *edata) 5705 { 5706 struct i40e_netdev_priv *np = netdev_priv(netdev); 5707 struct i40e_aq_get_phy_abilities_resp abilities; 5708 struct i40e_aq_set_phy_config config; 5709 struct i40e_vsi *vsi = np->vsi; 5710 struct i40e_pf *pf = vsi->back; 5711 struct i40e_hw *hw = &pf->hw; 5712 __le16 eee_capability; 5713 int status = 0; 5714 5715 /* Deny parameters we don't support */ 5716 if (i40e_is_eee_param_supported(netdev, edata)) 5717 return -EOPNOTSUPP; 5718 5719 /* Get initial PHY capabilities */ 5720 status = i40e_aq_get_phy_capabilities(hw, false, true, &abilities, 5721 NULL); 5722 if (status) 5723 return -EAGAIN; 5724 5725 /* Check whether NIC configuration is compatible with Energy Efficient 5726 * Ethernet (EEE) mode. 5727 */ 5728 if (abilities.eee_capability == 0) 5729 return -EOPNOTSUPP; 5730 5731 /* Cache initial EEE capability */ 5732 eee_capability = abilities.eee_capability; 5733 5734 /* Get current PHY configuration */ 5735 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 5736 NULL); 5737 if (status) 5738 return -EAGAIN; 5739 5740 /* Cache current PHY configuration */ 5741 config.phy_type = abilities.phy_type; 5742 config.phy_type_ext = abilities.phy_type_ext; 5743 config.link_speed = abilities.link_speed; 5744 config.abilities = abilities.abilities | 5745 I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 5746 config.eeer = abilities.eeer_val; 5747 config.low_power_ctrl = abilities.d3_lpan; 5748 config.fec_config = abilities.fec_cfg_curr_mod_ext_info & 5749 I40E_AQ_PHY_FEC_CONFIG_MASK; 5750 5751 /* Set desired EEE state */ 5752 if (edata->eee_enabled) { 5753 config.eee_capability = eee_capability; 5754 config.eeer |= cpu_to_le32(I40E_PRTPM_EEER_TX_LPI_EN_MASK); 5755 } else { 5756 config.eee_capability = 0; 5757 config.eeer &= cpu_to_le32(~I40E_PRTPM_EEER_TX_LPI_EN_MASK); 5758 } 5759 5760 /* Apply modified PHY configuration */ 5761 status = i40e_aq_set_phy_config(hw, &config, NULL); 5762 if (status) 5763 return -EAGAIN; 5764 5765 return 0; 5766 } 5767 5768 static const struct ethtool_ops i40e_ethtool_recovery_mode_ops = { 5769 .get_drvinfo = i40e_get_drvinfo, 5770 .set_eeprom = i40e_set_eeprom, 5771 .get_eeprom_len = i40e_get_eeprom_len, 5772 .get_eeprom = i40e_get_eeprom, 5773 }; 5774 5775 static const struct ethtool_ops i40e_ethtool_ops = { 5776 .supported_coalesce_params = ETHTOOL_COALESCE_USECS | 5777 ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ | 5778 ETHTOOL_COALESCE_USE_ADAPTIVE | 5779 ETHTOOL_COALESCE_RX_USECS_HIGH | 5780 ETHTOOL_COALESCE_TX_USECS_HIGH, 5781 .get_drvinfo = i40e_get_drvinfo, 5782 .get_regs_len = i40e_get_regs_len, 5783 .get_regs = i40e_get_regs, 5784 .nway_reset = i40e_nway_reset, 5785 .get_link = ethtool_op_get_link, 5786 .get_wol = i40e_get_wol, 5787 .set_wol = i40e_set_wol, 5788 .set_eeprom = i40e_set_eeprom, 5789 .get_eeprom_len = i40e_get_eeprom_len, 5790 .get_eeprom = i40e_get_eeprom, 5791 .get_ringparam = i40e_get_ringparam, 5792 .set_ringparam = i40e_set_ringparam, 5793 .get_pauseparam = i40e_get_pauseparam, 5794 .set_pauseparam = i40e_set_pauseparam, 5795 .get_msglevel = i40e_get_msglevel, 5796 .set_msglevel = i40e_set_msglevel, 5797 .get_rxnfc = i40e_get_rxnfc, 5798 .set_rxnfc = i40e_set_rxnfc, 5799 .self_test = i40e_diag_test, 5800 .get_strings = i40e_get_strings, 5801 .get_eee = i40e_get_eee, 5802 .set_eee = i40e_set_eee, 5803 .set_phys_id = i40e_set_phys_id, 5804 .get_sset_count = i40e_get_sset_count, 5805 .get_ethtool_stats = i40e_get_ethtool_stats, 5806 .get_coalesce = i40e_get_coalesce, 5807 .set_coalesce = i40e_set_coalesce, 5808 .get_rxfh_key_size = i40e_get_rxfh_key_size, 5809 .get_rxfh_indir_size = i40e_get_rxfh_indir_size, 5810 .get_rxfh = i40e_get_rxfh, 5811 .set_rxfh = i40e_set_rxfh, 5812 .get_channels = i40e_get_channels, 5813 .set_channels = i40e_set_channels, 5814 .get_module_info = i40e_get_module_info, 5815 .get_module_eeprom = i40e_get_module_eeprom, 5816 .get_ts_info = i40e_get_ts_info, 5817 .get_priv_flags = i40e_get_priv_flags, 5818 .set_priv_flags = i40e_set_priv_flags, 5819 .get_per_queue_coalesce = i40e_get_per_queue_coalesce, 5820 .set_per_queue_coalesce = i40e_set_per_queue_coalesce, 5821 .get_link_ksettings = i40e_get_link_ksettings, 5822 .set_link_ksettings = i40e_set_link_ksettings, 5823 .get_fecparam = i40e_get_fec_param, 5824 .set_fecparam = i40e_set_fec_param, 5825 .flash_device = i40e_ddp_flash, 5826 }; 5827 5828 void i40e_set_ethtool_ops(struct net_device *netdev) 5829 { 5830 struct i40e_netdev_priv *np = netdev_priv(netdev); 5831 struct i40e_pf *pf = np->vsi->back; 5832 5833 if (!test_bit(__I40E_RECOVERY_MODE, pf->state)) 5834 netdev->ethtool_ops = &i40e_ethtool_ops; 5835 else 5836 netdev->ethtool_ops = &i40e_ethtool_recovery_mode_ops; 5837 } 5838