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1// SPDX-License-Identifier: GPL-2.02/* 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 statistic15 * @stat_string: statistic name to display in ethtool -S output16 * @sizeof_stat: the sizeof() the stat, must be no greater than sizeof(u64)17 * @stat_offset: offsetof() the stat from a base pointer18 *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 should21 * be defined in constant arrays using the I40E_STAT macro, with every element22 * of the array using the same _type for calculating the sizeof_stat and23 * stat_offset.24 *25 * The @sizeof_stat is expected to be sizeof(u8), sizeof(u16), sizeof(u32) or26 * sizeof(u64). Other sizes are not expected and will produce a WARN_ONCE from27 * the i40e_add_ethtool_stat() helper function.28 *29 * The @stat_string is interpreted as a format string, allowing formatted30 * values to be inserted while looping over multiple structures for a given31 * statistics array. Thus, every statistic string in an array should have the32 * same type and number of format specifiers, to be formatted by variadic33 * arguments to the i40e_add_stat_string() helper function.34 **/35struct 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 expects43 * 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 netdev52 * 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 */62static 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 buffer69 * @data: location to store the stat value70 * @pointer: basis for where to copy from71 * @stat: the stat definition72 *73 * Copies the stat data defined by the pointer and stat structure pair into74 * the memory supplied as data. Used to implement i40e_add_ethtool_stats and75 * i40e_add_queue_stats. If the pointer is null, data will be zero'd.76 */77static void78i40e_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 stats85 * 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 buffer114 * @data: ethtool stats buffer115 * @pointer: location to copy stats from116 * @stats: array of stats to copy117 * @size: the size of the stats definition118 *119 * Copy the stats defined by the stats array using the pointer as a base into120 * the data buffer supplied by ethtool. Updates the data pointer to point to121 * 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 to123 * skip these stats.124 **/125static void126__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 buffer138 * @data: ethtool stats buffer139 * @pointer: location where stats are stored140 * @stats: static const array of stat definitions141 *142 * Macro to ease the use of __i40e_add_ethtool_stats by taking a static143 * constant stats array and passing the ARRAY_SIZE(). This avoids typos by144 * ensuring that we pass the size associated with the given stats array.145 *146 * The parameter @stats is evaluated twice, so parameters with side effects147 * 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 buffer154 * @data: ethtool stats buffer155 * @ring: the ring to copy156 *157 * Queue statistics must be copied while protected by158 * 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 the160 * ring pointer is null, zero out the queue stat values and update the data161 * pointer. Otherwise safely copy the stats from the ring into the supplied162 * buffer and update the data pointer when finished.163 *164 * This function expects to be called while under rcu_read_lock().165 **/166static void167i40e_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 retrying175 * the copy until we get a consistent value according to176 * u64_stats_fetch_retry. But first, make sure our ring is177 * 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 buffer193 * @p: ethtool supplied buffer194 * @stats: stat definitions array195 * @size: size of the stats array196 *197 * Format and copy the strings described by stats into the buffer pointed at198 * by p.199 **/200static 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 buffer217 * @p: ethtool supplied buffer218 * @stats: stat definitions array219 *220 * Format and copy the strings described by the const static stats value into221 * the buffer pointed at by p.222 *223 * The parameter @stats is evaluated twice, so parameters with side effects224 * should be avoided. Additionally, stats must be an array such that225 * 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 241static 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 256static 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 271struct 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 278static 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 285static 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, and308 * as such might have several netdevs supporting VMDq and FCoE going309 * through a single port. The NETDEV_STATs are for individual netdevs310 * seen at the top of the stack, and the PF_STATs are for the physical311 * function at the bottom of the stack hosting those netdevs.312 *313 * The PF_STATs are appended to the netdev stats only when ethtool -S314 * is queried on the base PF netdev, not on the VMDq or FCoE netdev.315 */316static 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 376struct 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 384static 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 415enum 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 422static 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 431struct 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 443static 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 */467static 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 restriction476 * @pf: the PF struct477 **/478static 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 modes486 * @pf: PF struct with phy_types487 * @ks: ethtool link ksettings struct to fill out488 *489 **/490static 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 mask734 * @req_fec_info: mask request FEC info735 * @ks: ethtool ksettings to fill in736 **/737static 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 up764 * @hw: hw structure765 * @ks: ethtool ksettings to fill in766 * @netdev: network interface device structure767 * @pf: pointer to physical function struct768 **/769static 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 the996 * current PHY type, get what is supported by the NVM and intersect997 * them to get what is truly supported998 */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 down1038 * @hw: hw structure1039 * @ks: ethtool ksettings to fill in1040 * @pf: pointer to physical function struct1041 *1042 * Reports link settings that can be determined when link is down1043 **/1044static 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 on1049 * supported phy types to figure out what info to display1050 */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 settings1060 * @netdev: network interface device structure1061 * @ks: ethtool ksettings1062 *1063 * Reports speed/duplex settings based on media_type1064 **/1065static 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 else1080 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 81147/**1148 * i40e_speed_to_link_speed - Translate decimal speed to i40e_aq_link_speed1149 * @speed: speed in decimal1150 * @ks: ethtool ksettings1151 *1152 * Return i40e_aq_link_speed based on speed1153 **/1154static enum i40e_aq_link_speed1155i40e_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_BIT1167 {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_LBIT1187};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_SIZE1210 1211/**1212 * i40e_set_link_ksettings - Set Speed and Duplex1213 * @netdev: network interface device structure1214 * @ks: ethtool ksettings1215 *1216 * Set speed/duplex per media_types advertised/forced1217 **/1218static 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 the1238 * port's controlling PF1239 */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 modes1277 * 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 are1289 * 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 not1313 * set below1314 */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 PHY1339 * that can disable it, so otherwise return error1340 */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 autoneg1428 * 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 go1449 * back up when fw says it is ready asynchronously1450 */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 1478done:1479 clear_bit(__I40E_CONFIG_BUSY, pf->state);1480 1481 return err;1482}1483 1484static 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 link1528 * itself rather than to the FEC settings1529 * (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 1537done:1538 return err;1539}1540 1541static 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 else1579 fecparam->active_fec = ETHTOOL_FEC_OFF;1580done:1581 return err;1582}1583 1584static 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 1628static 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 status1650 * @netdev: netdevice structure1651 * @pause: buffer to return pause parameters1652 *1653 * Return tx/rx-pause status1654 **/1655static 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 parameter1687 * @netdev: network interface device structure1688 * @pause: return tx/rx flow control status1689 **/1690static 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 the1706 * port's controlling PF1707 */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 else1743 return -EINVAL;1744 1745 /* Tell the OS link is going down, the link will go back up when fw1746 * says it is ready asynchronously1747 */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 1784static 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 1796static 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 else1804 pf->msg_enable = data;1805}1806 1807static 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 1818static 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 of1831 * this data, it will rely on this version number to know how to1832 * interpret things. Hence, this needs to be updated if/when the1833 * 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].offset1842 + (j * i40e_reg_list[i].stride);1843 reg_buf[ri++] = rd32(hw, reg);1844 }1845 }1846 1847}1848 1849static 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 40961862 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 else1878 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);1939free_buff:1940 kfree(eeprom_buff);1941 return ret_val;1942}1943 1944static 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 0x5B9FFF1951 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 1962static 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 else1984 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 1996static 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 2013static 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 2025static 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 2044static 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 2055static 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 -- regardless2095 * 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 pointers2122 * 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 the2146 * setup call2147 */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 the2185 * setup call2186 */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 to2192 * during early allocation of Rx buffers2193 */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 OS2200 * has enough memory, any failure here means abort2201 */2202 unused = I40E_DESC_UNUSED(&rx_rings[i]);2203 err = i40e_alloc_rx_buffers(&rx_rings[i], unused);2204rx_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 interface2219 */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 routine2239 * into thinking it has to realloc everything2240 * but the recycling logic will let us re-use2241 * the buffers allocated above2242 */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 2257free_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 2268done: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 device2276 * @netdev: the netdev to return the count for2277 *2278 * Returns the total number of statistics for this netdev. Note that even2279 * though this is a function, it is required that the count for a specific2280 * netdev must never change. Basing the count on static values such as the2281 * maximum number of queues or the device type is ok. However, the API for2282 * obtaining stats is *not* safe against changes based on non-static2283 * 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 count2286 * anyways, always return its string, and report its value as zero.2287 **/2288static 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 else2298 stats_len = I40E_VSI_STATS_LEN;2299 2300 /* The number of stats reported for a given net_device must remain2301 * constant throughout the life of that device.2302 *2303 * This is because the API for obtaining the size, strings, and stats2304 * is spread out over three separate ethtool ioctls. There is no safe2305 * way to lock the number of stats across these calls, so we must2306 * assume that they will never change.2307 *2308 * Due to this, we report the maximum number of queues, even if not2309 * every queue is currently configured. Since we always allocate2310 * queues in pairs, we'll just use netdev->num_tx_queues * 2. This2311 * works because the num_tx_queues is set at device creation and never2312 * changes.2313 */2314 stats_len += I40E_QUEUE_STATS_LEN * 2 * netdev->num_tx_queues;2315 2316 return stats_len;2317}2318 2319static 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 structure2340 * @tc: the TC statistics in VEB structure (veb->tc_stats)2341 * @i: the index of traffic class in (veb->tc_stats) structure to copy2342 *2343 * Copy VEB TC statistics from structure of arrays (veb->tc_stats) to2344 * one dimensional structure i40e_cp_veb_tc_stats.2345 * Produce formatted i40e_cp_veb_tc_stats structure of the VEB TC2346 * statistics for the given TC.2347 **/2348static struct i40e_cp_veb_tc_stats2349i40e_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 structure2363 * @pf: the PF device structure2364 * @i: the priority value to copy2365 *2366 * The PFC stats are found as arrays in pf->stats, which is not easy to pass2367 * into i40e_add_ethtool_stats. Produce a formatted i40e_pfc_stats structure2368 * of the PFC stats for the given priority.2369 **/2370static inline struct i40e_pfc_stats2371i40e_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 buffer2388 * @netdev: the netdev to collect stats for2389 * @stats: ethtool stats command structure2390 * @data: ethtool supplied buffer2391 *2392 * Copy the stats values for this netdev into the buffer. Expects data to be2393 * pre-allocated to the size returned by i40e_get_stats_count.. Note that all2394 * statistics must be copied in a static order, and the count must not change2395 * 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), this2398 * function reports its value as zero.2399 **/2400static 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 that2435 * we initialize stats to zero and update the data pointer2436 * intelligently2437 */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 2461check_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 buffer2468 * @netdev: the netdev to collect strings for2469 * @data: supplied buffer to copy strings into2470 *2471 * Copy the strings related to stats for this netdev. Expects data to be2472 * pre-allocated with the size reported by i40e_get_stats_count. Note that the2473 * strings must be copied in a static order and the total count must not2474 * change for a given netdev. See i40e_get_stats_count for more details.2475 **/2476static 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 2508check_data_pointer:2509 WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN,2510 "stat strings count mismatch!");2511}2512 2513static 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 2529static 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 2548static int i40e_get_ts_info(struct net_device *dev,2549 struct kernel_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_TX_HARDWARE |2559 SOF_TIMESTAMPING_RX_HARDWARE |2560 SOF_TIMESTAMPING_RAW_HARDWARE;2561 2562 if (pf->ptp_clock)2563 info->phc_index = ptp_clock_index(pf->ptp_clock);2564 2565 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);2566 2567 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |2568 BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |2569 BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |2570 BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ);2571 2572 if (test_bit(I40E_HW_CAP_PTP_L4, pf->hw.caps))2573 info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |2574 BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |2575 BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) |2576 BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |2577 BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) |2578 BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |2579 BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |2580 BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ);2581 2582 return 0;2583}2584 2585static u64 i40e_link_test(struct net_device *netdev, u64 *data)2586{2587 struct i40e_netdev_priv *np = netdev_priv(netdev);2588 struct i40e_pf *pf = np->vsi->back;2589 bool link_up = false;2590 int status;2591 2592 netif_info(pf, hw, netdev, "link test\n");2593 status = i40e_get_link_status(&pf->hw, &link_up);2594 if (status) {2595 netif_err(pf, drv, netdev, "link query timed out, please retry test\n");2596 *data = 1;2597 return *data;2598 }2599 2600 if (link_up)2601 *data = 0;2602 else2603 *data = 1;2604 2605 return *data;2606}2607 2608static u64 i40e_reg_test(struct net_device *netdev, u64 *data)2609{2610 struct i40e_netdev_priv *np = netdev_priv(netdev);2611 struct i40e_pf *pf = np->vsi->back;2612 2613 netif_info(pf, hw, netdev, "register test\n");2614 *data = i40e_diag_reg_test(&pf->hw);2615 2616 return *data;2617}2618 2619static u64 i40e_eeprom_test(struct net_device *netdev, u64 *data)2620{2621 struct i40e_netdev_priv *np = netdev_priv(netdev);2622 struct i40e_pf *pf = np->vsi->back;2623 2624 netif_info(pf, hw, netdev, "eeprom test\n");2625 *data = i40e_diag_eeprom_test(&pf->hw);2626 2627 /* forcebly clear the NVM Update state machine */2628 pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT;2629 2630 return *data;2631}2632 2633static u64 i40e_intr_test(struct net_device *netdev, u64 *data)2634{2635 struct i40e_netdev_priv *np = netdev_priv(netdev);2636 struct i40e_pf *pf = np->vsi->back;2637 u16 swc_old = pf->sw_int_count;2638 2639 netif_info(pf, hw, netdev, "interrupt test\n");2640 wr32(&pf->hw, I40E_PFINT_DYN_CTL0,2641 (I40E_PFINT_DYN_CTL0_INTENA_MASK |2642 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK |2643 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK |2644 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK |2645 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK));2646 usleep_range(1000, 2000);2647 *data = (swc_old == pf->sw_int_count);2648 2649 return *data;2650}2651 2652static inline bool i40e_active_vfs(struct i40e_pf *pf)2653{2654 struct i40e_vf *vfs = pf->vf;2655 int i;2656 2657 for (i = 0; i < pf->num_alloc_vfs; i++)2658 if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states))2659 return true;2660 return false;2661}2662 2663static inline bool i40e_active_vmdqs(struct i40e_pf *pf)2664{2665 return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2);2666}2667 2668static void i40e_diag_test(struct net_device *netdev,2669 struct ethtool_test *eth_test, u64 *data)2670{2671 struct i40e_netdev_priv *np = netdev_priv(netdev);2672 bool if_running = netif_running(netdev);2673 struct i40e_pf *pf = np->vsi->back;2674 2675 if (eth_test->flags == ETH_TEST_FL_OFFLINE) {2676 /* Offline tests */2677 netif_info(pf, drv, netdev, "offline testing starting\n");2678 2679 set_bit(__I40E_TESTING, pf->state);2680 2681 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||2682 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) {2683 dev_warn(&pf->pdev->dev,2684 "Cannot start offline testing when PF is in reset state.\n");2685 goto skip_ol_tests;2686 }2687 2688 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) {2689 dev_warn(&pf->pdev->dev,2690 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");2691 goto skip_ol_tests;2692 }2693 2694 /* If the device is online then take it offline */2695 if (if_running)2696 /* indicate we're in test mode */2697 i40e_close(netdev);2698 else2699 /* This reset does not affect link - if it is2700 * changed to a type of reset that does affect2701 * link then the following link test would have2702 * to be moved to before the reset2703 */2704 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);2705 2706 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))2707 eth_test->flags |= ETH_TEST_FL_FAILED;2708 2709 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM]))2710 eth_test->flags |= ETH_TEST_FL_FAILED;2711 2712 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR]))2713 eth_test->flags |= ETH_TEST_FL_FAILED;2714 2715 /* run reg test last, a reset is required after it */2716 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG]))2717 eth_test->flags |= ETH_TEST_FL_FAILED;2718 2719 clear_bit(__I40E_TESTING, pf->state);2720 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);2721 2722 if (if_running)2723 i40e_open(netdev);2724 } else {2725 /* Online tests */2726 netif_info(pf, drv, netdev, "online testing starting\n");2727 2728 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))2729 eth_test->flags |= ETH_TEST_FL_FAILED;2730 2731 /* Offline only tests, not run in online; pass by default */2732 data[I40E_ETH_TEST_REG] = 0;2733 data[I40E_ETH_TEST_EEPROM] = 0;2734 data[I40E_ETH_TEST_INTR] = 0;2735 }2736 2737 netif_info(pf, drv, netdev, "testing finished\n");2738 return;2739 2740skip_ol_tests:2741 data[I40E_ETH_TEST_REG] = 1;2742 data[I40E_ETH_TEST_EEPROM] = 1;2743 data[I40E_ETH_TEST_INTR] = 1;2744 data[I40E_ETH_TEST_LINK] = 1;2745 eth_test->flags |= ETH_TEST_FL_FAILED;2746 clear_bit(__I40E_TESTING, pf->state);2747 netif_info(pf, drv, netdev, "testing failed\n");2748}2749 2750static void i40e_get_wol(struct net_device *netdev,2751 struct ethtool_wolinfo *wol)2752{2753 struct i40e_netdev_priv *np = netdev_priv(netdev);2754 struct i40e_pf *pf = np->vsi->back;2755 struct i40e_hw *hw = &pf->hw;2756 u16 wol_nvm_bits;2757 2758 /* NVM bit on means WoL disabled for the port */2759 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);2760 if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) {2761 wol->supported = 0;2762 wol->wolopts = 0;2763 } else {2764 wol->supported = WAKE_MAGIC;2765 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0);2766 }2767}2768 2769/**2770 * i40e_set_wol - set the WakeOnLAN configuration2771 * @netdev: the netdev in question2772 * @wol: the ethtool WoL setting data2773 **/2774static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)2775{2776 struct i40e_netdev_priv *np = netdev_priv(netdev);2777 struct i40e_pf *pf = np->vsi->back;2778 struct i40e_vsi *vsi = np->vsi;2779 struct i40e_hw *hw = &pf->hw;2780 u16 wol_nvm_bits;2781 2782 /* WoL not supported if this isn't the controlling PF on the port */2783 if (hw->partition_id != 1) {2784 i40e_partition_setting_complaint(pf);2785 return -EOPNOTSUPP;2786 }2787 2788 if (vsi->type != I40E_VSI_MAIN)2789 return -EOPNOTSUPP;2790 2791 /* NVM bit on means WoL disabled for the port */2792 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);2793 if (BIT(hw->port) & wol_nvm_bits)2794 return -EOPNOTSUPP;2795 2796 /* only magic packet is supported */2797 if (wol->wolopts & ~WAKE_MAGIC)2798 return -EOPNOTSUPP;2799 2800 /* is this a new value? */2801 if (pf->wol_en != !!wol->wolopts) {2802 pf->wol_en = !!wol->wolopts;2803 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en);2804 }2805 2806 return 0;2807}2808 2809static int i40e_set_phys_id(struct net_device *netdev,2810 enum ethtool_phys_id_state state)2811{2812 struct i40e_netdev_priv *np = netdev_priv(netdev);2813 struct i40e_pf *pf = np->vsi->back;2814 struct i40e_hw *hw = &pf->hw;2815 int blink_freq = 2;2816 u16 temp_status;2817 int ret = 0;2818 2819 switch (state) {2820 case ETHTOOL_ID_ACTIVE:2821 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps)) {2822 pf->led_status = i40e_led_get(hw);2823 } else {2824 if (!test_bit(I40E_HW_CAP_AQ_PHY_ACCESS, hw->caps))2825 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL,2826 NULL);2827 ret = i40e_led_get_phy(hw, &temp_status,2828 &pf->phy_led_val);2829 pf->led_status = temp_status;2830 }2831 return blink_freq;2832 case ETHTOOL_ID_ON:2833 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps))2834 i40e_led_set(hw, 0xf, false);2835 else2836 ret = i40e_led_set_phy(hw, true, pf->led_status, 0);2837 break;2838 case ETHTOOL_ID_OFF:2839 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps))2840 i40e_led_set(hw, 0x0, false);2841 else2842 ret = i40e_led_set_phy(hw, false, pf->led_status, 0);2843 break;2844 case ETHTOOL_ID_INACTIVE:2845 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps)) {2846 i40e_led_set(hw, pf->led_status, false);2847 } else {2848 ret = i40e_led_set_phy(hw, false, pf->led_status,2849 (pf->phy_led_val |2850 I40E_PHY_LED_MODE_ORIG));2851 if (!test_bit(I40E_HW_CAP_AQ_PHY_ACCESS, hw->caps))2852 i40e_aq_set_phy_debug(hw, 0, NULL);2853 }2854 break;2855 default:2856 break;2857 }2858 if (ret)2859 return -ENOENT;2860 else2861 return 0;2862}2863 2864/* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt2865 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also2866 * 125us (8000 interrupts per second) == ITR(62)2867 */2868 2869/**2870 * __i40e_get_coalesce - get per-queue coalesce settings2871 * @netdev: the netdev to check2872 * @ec: ethtool coalesce data structure2873 * @queue: which queue to pick2874 *2875 * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs2876 * are per queue. If queue is <0 then we default to queue 0 as the2877 * representative value.2878 **/2879static int __i40e_get_coalesce(struct net_device *netdev,2880 struct ethtool_coalesce *ec,2881 int queue)2882{2883 struct i40e_netdev_priv *np = netdev_priv(netdev);2884 struct i40e_ring *rx_ring, *tx_ring;2885 struct i40e_vsi *vsi = np->vsi;2886 2887 ec->tx_max_coalesced_frames_irq = vsi->work_limit;2888 2889 /* rx and tx usecs has per queue value. If user doesn't specify the2890 * queue, return queue 0's value to represent.2891 */2892 if (queue < 0)2893 queue = 0;2894 else if (queue >= vsi->num_queue_pairs)2895 return -EINVAL;2896 2897 rx_ring = vsi->rx_rings[queue];2898 tx_ring = vsi->tx_rings[queue];2899 2900 if (ITR_IS_DYNAMIC(rx_ring->itr_setting))2901 ec->use_adaptive_rx_coalesce = 1;2902 2903 if (ITR_IS_DYNAMIC(tx_ring->itr_setting))2904 ec->use_adaptive_tx_coalesce = 1;2905 2906 ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC;2907 ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC;2908 2909 /* we use the _usecs_high to store/set the interrupt rate limit2910 * that the hardware supports, that almost but not quite2911 * fits the original intent of the ethtool variable,2912 * the rx_coalesce_usecs_high limits total interrupts2913 * per second from both tx/rx sources.2914 */2915 ec->rx_coalesce_usecs_high = vsi->int_rate_limit;2916 ec->tx_coalesce_usecs_high = vsi->int_rate_limit;2917 2918 return 0;2919}2920 2921/**2922 * i40e_get_coalesce - get a netdev's coalesce settings2923 * @netdev: the netdev to check2924 * @ec: ethtool coalesce data structure2925 * @kernel_coal: ethtool CQE mode setting structure2926 * @extack: extack for reporting error messages2927 *2928 * Gets the coalesce settings for a particular netdev. Note that if user has2929 * modified per-queue settings, this only guarantees to represent queue 0. See2930 * __i40e_get_coalesce for more details.2931 **/2932static int i40e_get_coalesce(struct net_device *netdev,2933 struct ethtool_coalesce *ec,2934 struct kernel_ethtool_coalesce *kernel_coal,2935 struct netlink_ext_ack *extack)2936{2937 return __i40e_get_coalesce(netdev, ec, -1);2938}2939 2940/**2941 * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue2942 * @netdev: netdev structure2943 * @ec: ethtool's coalesce settings2944 * @queue: the particular queue to read2945 *2946 * Will read a specific queue's coalesce settings2947 **/2948static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue,2949 struct ethtool_coalesce *ec)2950{2951 return __i40e_get_coalesce(netdev, ec, queue);2952}2953 2954/**2955 * i40e_set_itr_per_queue - set ITR values for specific queue2956 * @vsi: the VSI to set values for2957 * @ec: coalesce settings from ethtool2958 * @queue: the queue to modify2959 *2960 * Change the ITR settings for a specific queue.2961 **/2962static void i40e_set_itr_per_queue(struct i40e_vsi *vsi,2963 struct ethtool_coalesce *ec,2964 int queue)2965{2966 struct i40e_ring *rx_ring = vsi->rx_rings[queue];2967 struct i40e_ring *tx_ring = vsi->tx_rings[queue];2968 struct i40e_pf *pf = vsi->back;2969 struct i40e_hw *hw = &pf->hw;2970 struct i40e_q_vector *q_vector;2971 u16 intrl;2972 2973 intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit);2974 2975 rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs);2976 tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs);2977 2978 if (ec->use_adaptive_rx_coalesce)2979 rx_ring->itr_setting |= I40E_ITR_DYNAMIC;2980 else2981 rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;2982 2983 if (ec->use_adaptive_tx_coalesce)2984 tx_ring->itr_setting |= I40E_ITR_DYNAMIC;2985 else2986 tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;2987 2988 q_vector = rx_ring->q_vector;2989 q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting);2990 2991 q_vector = tx_ring->q_vector;2992 q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting);2993 2994 /* The interrupt handler itself will take care of programming2995 * the Tx and Rx ITR values based on the values we have entered2996 * into the q_vector, no need to write the values now.2997 */2998 2999 wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl);3000 i40e_flush(hw);3001}3002 3003/**3004 * __i40e_set_coalesce - set coalesce settings for particular queue3005 * @netdev: the netdev to change3006 * @ec: ethtool coalesce settings3007 * @queue: the queue to change3008 *3009 * Sets the coalesce settings for a particular queue.3010 **/3011static int __i40e_set_coalesce(struct net_device *netdev,3012 struct ethtool_coalesce *ec,3013 int queue)3014{3015 struct i40e_netdev_priv *np = netdev_priv(netdev);3016 u16 intrl_reg, cur_rx_itr, cur_tx_itr;3017 struct i40e_vsi *vsi = np->vsi;3018 struct i40e_pf *pf = vsi->back;3019 int i;3020 3021 if (ec->tx_max_coalesced_frames_irq)3022 vsi->work_limit = ec->tx_max_coalesced_frames_irq;3023 3024 if (queue < 0) {3025 cur_rx_itr = vsi->rx_rings[0]->itr_setting;3026 cur_tx_itr = vsi->tx_rings[0]->itr_setting;3027 } else if (queue < vsi->num_queue_pairs) {3028 cur_rx_itr = vsi->rx_rings[queue]->itr_setting;3029 cur_tx_itr = vsi->tx_rings[queue]->itr_setting;3030 } else {3031 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n",3032 vsi->num_queue_pairs - 1);3033 return -EINVAL;3034 }3035 3036 cur_tx_itr &= ~I40E_ITR_DYNAMIC;3037 cur_rx_itr &= ~I40E_ITR_DYNAMIC;3038 3039 /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */3040 if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) {3041 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n");3042 return -EINVAL;3043 }3044 3045 if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) {3046 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n",3047 INTRL_REG_TO_USEC(I40E_MAX_INTRL));3048 return -EINVAL;3049 }3050 3051 if (ec->rx_coalesce_usecs != cur_rx_itr &&3052 ec->use_adaptive_rx_coalesce) {3053 netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n");3054 return -EINVAL;3055 }3056 3057 if (ec->rx_coalesce_usecs > I40E_MAX_ITR) {3058 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");3059 return -EINVAL;3060 }3061 3062 if (ec->tx_coalesce_usecs != cur_tx_itr &&3063 ec->use_adaptive_tx_coalesce) {3064 netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n");3065 return -EINVAL;3066 }3067 3068 if (ec->tx_coalesce_usecs > I40E_MAX_ITR) {3069 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n");3070 return -EINVAL;3071 }3072 3073 if (ec->use_adaptive_rx_coalesce && !cur_rx_itr)3074 ec->rx_coalesce_usecs = I40E_MIN_ITR;3075 3076 if (ec->use_adaptive_tx_coalesce && !cur_tx_itr)3077 ec->tx_coalesce_usecs = I40E_MIN_ITR;3078 3079 intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high);3080 vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg);3081 if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) {3082 netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n",3083 vsi->int_rate_limit);3084 }3085 3086 /* rx and tx usecs has per queue value. If user doesn't specify the3087 * queue, apply to all queues.3088 */3089 if (queue < 0) {3090 for (i = 0; i < vsi->num_queue_pairs; i++)3091 i40e_set_itr_per_queue(vsi, ec, i);3092 } else {3093 i40e_set_itr_per_queue(vsi, ec, queue);3094 }3095 3096 return 0;3097}3098 3099/**3100 * i40e_set_coalesce - set coalesce settings for every queue on the netdev3101 * @netdev: the netdev to change3102 * @ec: ethtool coalesce settings3103 * @kernel_coal: ethtool CQE mode setting structure3104 * @extack: extack for reporting error messages3105 *3106 * This will set each queue to the same coalesce settings.3107 **/3108static int i40e_set_coalesce(struct net_device *netdev,3109 struct ethtool_coalesce *ec,3110 struct kernel_ethtool_coalesce *kernel_coal,3111 struct netlink_ext_ack *extack)3112{3113 return __i40e_set_coalesce(netdev, ec, -1);3114}3115 3116/**3117 * i40e_set_per_queue_coalesce - set specific queue's coalesce settings3118 * @netdev: the netdev to change3119 * @ec: ethtool's coalesce settings3120 * @queue: the queue to change3121 *3122 * Sets the specified queue's coalesce settings.3123 **/3124static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue,3125 struct ethtool_coalesce *ec)3126{3127 return __i40e_set_coalesce(netdev, ec, queue);3128}3129 3130/**3131 * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type3132 * @pf: pointer to the physical function struct3133 * @cmd: ethtool rxnfc command3134 *3135 * Returns Success if the flow is supported, else Invalid Input.3136 **/3137static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd)3138{3139 struct i40e_hw *hw = &pf->hw;3140 u8 flow_pctype = 0;3141 u64 i_set = 0;3142 3143 cmd->data = 0;3144 3145 switch (cmd->flow_type) {3146 case TCP_V4_FLOW:3147 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;3148 break;3149 case UDP_V4_FLOW:3150 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;3151 break;3152 case TCP_V6_FLOW:3153 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;3154 break;3155 case UDP_V6_FLOW:3156 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;3157 break;3158 case SCTP_V4_FLOW:3159 case AH_ESP_V4_FLOW:3160 case AH_V4_FLOW:3161 case ESP_V4_FLOW:3162 case IPV4_FLOW:3163 case SCTP_V6_FLOW:3164 case AH_ESP_V6_FLOW:3165 case AH_V6_FLOW:3166 case ESP_V6_FLOW:3167 case IPV6_FLOW:3168 /* Default is src/dest for IP, no matter the L4 hashing */3169 cmd->data |= RXH_IP_SRC | RXH_IP_DST;3170 break;3171 default:3172 return -EINVAL;3173 }3174 3175 /* Read flow based hash input set register */3176 if (flow_pctype) {3177 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0,3178 flow_pctype)) |3179 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1,3180 flow_pctype)) << 32);3181 }3182 3183 /* Process bits of hash input set */3184 if (i_set) {3185 if (i_set & I40E_L4_SRC_MASK)3186 cmd->data |= RXH_L4_B_0_1;3187 if (i_set & I40E_L4_DST_MASK)3188 cmd->data |= RXH_L4_B_2_3;3189 3190 if (cmd->flow_type == TCP_V4_FLOW ||3191 cmd->flow_type == UDP_V4_FLOW) {3192 if (hw->mac.type == I40E_MAC_X722) {3193 if (i_set & I40E_X722_L3_SRC_MASK)3194 cmd->data |= RXH_IP_SRC;3195 if (i_set & I40E_X722_L3_DST_MASK)3196 cmd->data |= RXH_IP_DST;3197 } else {3198 if (i_set & I40E_L3_SRC_MASK)3199 cmd->data |= RXH_IP_SRC;3200 if (i_set & I40E_L3_DST_MASK)3201 cmd->data |= RXH_IP_DST;3202 }3203 } else if (cmd->flow_type == TCP_V6_FLOW ||3204 cmd->flow_type == UDP_V6_FLOW) {3205 if (i_set & I40E_L3_V6_SRC_MASK)3206 cmd->data |= RXH_IP_SRC;3207 if (i_set & I40E_L3_V6_DST_MASK)3208 cmd->data |= RXH_IP_DST;3209 }3210 }3211 3212 return 0;3213}3214 3215/**3216 * i40e_check_mask - Check whether a mask field is set3217 * @mask: the full mask value3218 * @field: mask of the field to check3219 *3220 * If the given mask is fully set, return positive value. If the mask for the3221 * field is fully unset, return zero. Otherwise return a negative error code.3222 **/3223static int i40e_check_mask(u64 mask, u64 field)3224{3225 u64 value = mask & field;3226 3227 if (value == field)3228 return 1;3229 else if (!value)3230 return 0;3231 else3232 return -1;3233}3234 3235/**3236 * i40e_parse_rx_flow_user_data - Deconstruct user-defined data3237 * @fsp: pointer to rx flow specification3238 * @data: pointer to userdef data structure for storage3239 *3240 * Read the user-defined data and deconstruct the value into a structure. No3241 * other code should read the user-defined data, so as to ensure that every3242 * place consistently reads the value correctly.3243 *3244 * The user-defined field is a 64bit Big Endian format value, which we3245 * deconstruct by reading bits or bit fields from it. Single bit flags shall3246 * be defined starting from the highest bits, while small bit field values3247 * shall be defined starting from the lowest bits.3248 *3249 * Returns 0 if the data is valid, and non-zero if the userdef data is invalid3250 * and the filter should be rejected. The data structure will always be3251 * modified even if FLOW_EXT is not set.3252 *3253 **/3254static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,3255 struct i40e_rx_flow_userdef *data)3256{3257 u64 value, mask;3258 int valid;3259 3260 /* Zero memory first so it's always consistent. */3261 memset(data, 0, sizeof(*data));3262 3263 if (!(fsp->flow_type & FLOW_EXT))3264 return 0;3265 3266 value = be64_to_cpu(*((__be64 *)fsp->h_ext.data));3267 mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data));3268 3269#define I40E_USERDEF_FLEX_WORD GENMASK_ULL(15, 0)3270#define I40E_USERDEF_FLEX_OFFSET GENMASK_ULL(31, 16)3271#define I40E_USERDEF_FLEX_FILTER GENMASK_ULL(31, 0)3272 3273 valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER);3274 if (valid < 0) {3275 return -EINVAL;3276 } else if (valid) {3277 data->flex_word = value & I40E_USERDEF_FLEX_WORD;3278 data->flex_offset =3279 FIELD_GET(I40E_USERDEF_FLEX_OFFSET, value);3280 data->flex_filter = true;3281 }3282 3283 return 0;3284}3285 3286/**3287 * i40e_fill_rx_flow_user_data - Fill in user-defined data field3288 * @fsp: pointer to rx_flow specification3289 * @data: pointer to return userdef data3290 *3291 * Reads the userdef data structure and properly fills in the user defined3292 * fields of the rx_flow_spec.3293 **/3294static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,3295 struct i40e_rx_flow_userdef *data)3296{3297 u64 value = 0, mask = 0;3298 3299 if (data->flex_filter) {3300 value |= data->flex_word;3301 value |= (u64)data->flex_offset << 16;3302 mask |= I40E_USERDEF_FLEX_FILTER;3303 }3304 3305 if (value || mask)3306 fsp->flow_type |= FLOW_EXT;3307 3308 *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value);3309 *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask);3310}3311 3312/**3313 * i40e_get_ethtool_fdir_all - Populates the rule count of a command3314 * @pf: Pointer to the physical function struct3315 * @cmd: The command to get or set Rx flow classification rules3316 * @rule_locs: Array of used rule locations3317 *3318 * This function populates both the total and actual rule count of3319 * the ethtool flow classification command3320 *3321 * Returns 0 on success or -EMSGSIZE if entry not found3322 **/3323static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf,3324 struct ethtool_rxnfc *cmd,3325 u32 *rule_locs)3326{3327 struct i40e_fdir_filter *rule;3328 struct hlist_node *node2;3329 int cnt = 0;3330 3331 /* report total rule count */3332 cmd->data = i40e_get_fd_cnt_all(pf);3333 3334 hlist_for_each_entry_safe(rule, node2,3335 &pf->fdir_filter_list, fdir_node) {3336 if (cnt == cmd->rule_cnt)3337 return -EMSGSIZE;3338 3339 rule_locs[cnt] = rule->fd_id;3340 cnt++;3341 }3342 3343 cmd->rule_cnt = cnt;3344 3345 return 0;3346}3347 3348/**3349 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow3350 * @pf: Pointer to the physical function struct3351 * @cmd: The command to get or set Rx flow classification rules3352 *3353 * This function looks up a filter based on the Rx flow classification3354 * command and fills the flow spec info for it if found3355 *3356 * Returns 0 on success or -EINVAL if filter not found3357 **/3358static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf,3359 struct ethtool_rxnfc *cmd)3360{3361 struct ethtool_rx_flow_spec *fsp =3362 (struct ethtool_rx_flow_spec *)&cmd->fs;3363 struct i40e_rx_flow_userdef userdef = {0};3364 struct i40e_fdir_filter *rule = NULL;3365 struct hlist_node *node2;3366 struct i40e_vsi *vsi;3367 u64 input_set;3368 u16 index;3369 3370 hlist_for_each_entry_safe(rule, node2,3371 &pf->fdir_filter_list, fdir_node) {3372 if (fsp->location <= rule->fd_id)3373 break;3374 }3375 3376 if (!rule || fsp->location != rule->fd_id)3377 return -EINVAL;3378 3379 fsp->flow_type = rule->flow_type;3380 if (fsp->flow_type == IP_USER_FLOW) {3381 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;3382 fsp->h_u.usr_ip4_spec.proto = 0;3383 fsp->m_u.usr_ip4_spec.proto = 0;3384 }3385 3386 if (fsp->flow_type == IPV6_USER_FLOW ||3387 fsp->flow_type == UDP_V6_FLOW ||3388 fsp->flow_type == TCP_V6_FLOW ||3389 fsp->flow_type == SCTP_V6_FLOW) {3390 /* Reverse the src and dest notion, since the HW views them3391 * from Tx perspective where as the user expects it from3392 * Rx filter view.3393 */3394 fsp->h_u.tcp_ip6_spec.psrc = rule->dst_port;3395 fsp->h_u.tcp_ip6_spec.pdst = rule->src_port;3396 memcpy(fsp->h_u.tcp_ip6_spec.ip6dst, rule->src_ip6,3397 sizeof(__be32) * 4);3398 memcpy(fsp->h_u.tcp_ip6_spec.ip6src, rule->dst_ip6,3399 sizeof(__be32) * 4);3400 } else {3401 /* Reverse the src and dest notion, since the HW views them3402 * from Tx perspective where as the user expects it from3403 * Rx filter view.3404 */3405 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port;3406 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port;3407 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip;3408 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip;3409 }3410 3411 switch (rule->flow_type) {3412 case SCTP_V4_FLOW:3413 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP;3414 break;3415 case TCP_V4_FLOW:3416 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;3417 break;3418 case UDP_V4_FLOW:3419 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;3420 break;3421 case SCTP_V6_FLOW:3422 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP;3423 break;3424 case TCP_V6_FLOW:3425 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;3426 break;3427 case UDP_V6_FLOW:3428 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;3429 break;3430 case IP_USER_FLOW:3431 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;3432 break;3433 case IPV6_USER_FLOW:3434 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER;3435 break;3436 default:3437 /* If we have stored a filter with a flow type not listed here3438 * it is almost certainly a driver bug. WARN(), and then3439 * assign the input_set as if all fields are enabled to avoid3440 * reading unassigned memory.3441 */3442 WARN(1, "Missing input set index for flow_type %d\n",3443 rule->flow_type);3444 input_set = 0xFFFFFFFFFFFFFFFFULL;3445 goto no_input_set;3446 }3447 3448 input_set = i40e_read_fd_input_set(pf, index);3449 3450no_input_set:3451 if (input_set & I40E_L3_V6_SRC_MASK) {3452 fsp->m_u.tcp_ip6_spec.ip6src[0] = htonl(0xFFFFFFFF);3453 fsp->m_u.tcp_ip6_spec.ip6src[1] = htonl(0xFFFFFFFF);3454 fsp->m_u.tcp_ip6_spec.ip6src[2] = htonl(0xFFFFFFFF);3455 fsp->m_u.tcp_ip6_spec.ip6src[3] = htonl(0xFFFFFFFF);3456 }3457 3458 if (input_set & I40E_L3_V6_DST_MASK) {3459 fsp->m_u.tcp_ip6_spec.ip6dst[0] = htonl(0xFFFFFFFF);3460 fsp->m_u.tcp_ip6_spec.ip6dst[1] = htonl(0xFFFFFFFF);3461 fsp->m_u.tcp_ip6_spec.ip6dst[2] = htonl(0xFFFFFFFF);3462 fsp->m_u.tcp_ip6_spec.ip6dst[3] = htonl(0xFFFFFFFF);3463 }3464 3465 if (input_set & I40E_L3_SRC_MASK)3466 fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF);3467 3468 if (input_set & I40E_L3_DST_MASK)3469 fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF);3470 3471 if (input_set & I40E_L4_SRC_MASK)3472 fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF);3473 3474 if (input_set & I40E_L4_DST_MASK)3475 fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF);3476 3477 if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET)3478 fsp->ring_cookie = RX_CLS_FLOW_DISC;3479 else3480 fsp->ring_cookie = rule->q_index;3481 3482 if (rule->vlan_tag) {3483 fsp->h_ext.vlan_etype = rule->vlan_etype;3484 fsp->m_ext.vlan_etype = htons(0xFFFF);3485 fsp->h_ext.vlan_tci = rule->vlan_tag;3486 fsp->m_ext.vlan_tci = htons(0xFFFF);3487 fsp->flow_type |= FLOW_EXT;3488 }3489 3490 vsi = i40e_pf_get_main_vsi(pf);3491 if (rule->dest_vsi != vsi->id) {3492 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi);3493 if (vsi && vsi->type == I40E_VSI_SRIOV) {3494 /* VFs are zero-indexed by the driver, but ethtool3495 * expects them to be one-indexed, so add one here3496 */3497 u64 ring_vf = vsi->vf_id + 1;3498 3499 ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF;3500 fsp->ring_cookie |= ring_vf;3501 }3502 }3503 3504 if (rule->flex_filter) {3505 userdef.flex_filter = true;3506 userdef.flex_word = be16_to_cpu(rule->flex_word);3507 userdef.flex_offset = rule->flex_offset;3508 }3509 3510 i40e_fill_rx_flow_user_data(fsp, &userdef);3511 3512 return 0;3513}3514 3515/**3516 * i40e_get_rxnfc - command to get RX flow classification rules3517 * @netdev: network interface device structure3518 * @cmd: ethtool rxnfc command3519 * @rule_locs: pointer to store rule data3520 *3521 * Returns Success if the command is supported.3522 **/3523static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,3524 u32 *rule_locs)3525{3526 struct i40e_netdev_priv *np = netdev_priv(netdev);3527 struct i40e_vsi *vsi = np->vsi;3528 struct i40e_pf *pf = vsi->back;3529 int ret = -EOPNOTSUPP;3530 3531 switch (cmd->cmd) {3532 case ETHTOOL_GRXRINGS:3533 cmd->data = vsi->rss_size;3534 ret = 0;3535 break;3536 case ETHTOOL_GRXFH:3537 ret = i40e_get_rss_hash_opts(pf, cmd);3538 break;3539 case ETHTOOL_GRXCLSRLCNT:3540 cmd->rule_cnt = pf->fdir_pf_active_filters;3541 /* report total rule count */3542 cmd->data = i40e_get_fd_cnt_all(pf);3543 ret = 0;3544 break;3545 case ETHTOOL_GRXCLSRULE:3546 ret = i40e_get_ethtool_fdir_entry(pf, cmd);3547 break;3548 case ETHTOOL_GRXCLSRLALL:3549 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs);3550 break;3551 default:3552 break;3553 }3554 3555 return ret;3556}3557 3558/**3559 * i40e_get_rss_hash_bits - Read RSS Hash bits from register3560 * @hw: hw structure3561 * @nfc: pointer to user request3562 * @i_setc: bits currently set3563 *3564 * Returns value of bits to be set per user request3565 **/3566static u64 i40e_get_rss_hash_bits(struct i40e_hw *hw,3567 struct ethtool_rxnfc *nfc,3568 u64 i_setc)3569{3570 u64 i_set = i_setc;3571 u64 src_l3 = 0, dst_l3 = 0;3572 3573 if (nfc->data & RXH_L4_B_0_1)3574 i_set |= I40E_L4_SRC_MASK;3575 else3576 i_set &= ~I40E_L4_SRC_MASK;3577 if (nfc->data & RXH_L4_B_2_3)3578 i_set |= I40E_L4_DST_MASK;3579 else3580 i_set &= ~I40E_L4_DST_MASK;3581 3582 if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) {3583 src_l3 = I40E_L3_V6_SRC_MASK;3584 dst_l3 = I40E_L3_V6_DST_MASK;3585 } else if (nfc->flow_type == TCP_V4_FLOW ||3586 nfc->flow_type == UDP_V4_FLOW) {3587 if (hw->mac.type == I40E_MAC_X722) {3588 src_l3 = I40E_X722_L3_SRC_MASK;3589 dst_l3 = I40E_X722_L3_DST_MASK;3590 } else {3591 src_l3 = I40E_L3_SRC_MASK;3592 dst_l3 = I40E_L3_DST_MASK;3593 }3594 } else {3595 /* Any other flow type are not supported here */3596 return i_set;3597 }3598 3599 if (nfc->data & RXH_IP_SRC)3600 i_set |= src_l3;3601 else3602 i_set &= ~src_l3;3603 if (nfc->data & RXH_IP_DST)3604 i_set |= dst_l3;3605 else3606 i_set &= ~dst_l3;3607 3608 return i_set;3609}3610 3611#define FLOW_PCTYPES_SIZE 643612/**3613 * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash3614 * @pf: pointer to the physical function struct3615 * @nfc: ethtool rxnfc command3616 *3617 * Returns Success if the flow input set is supported.3618 **/3619static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)3620{3621 struct i40e_hw *hw = &pf->hw;3622 u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) |3623 ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32);3624 DECLARE_BITMAP(flow_pctypes, FLOW_PCTYPES_SIZE);3625 u64 i_set, i_setc;3626 3627 bitmap_zero(flow_pctypes, FLOW_PCTYPES_SIZE);3628 3629 if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) {3630 dev_err(&pf->pdev->dev,3631 "Change of RSS hash input set is not supported when MFP mode is enabled\n");3632 return -EOPNOTSUPP;3633 }3634 3635 /* RSS does not support anything other than hashing3636 * to queues on src and dst IPs and ports3637 */3638 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |3639 RXH_L4_B_0_1 | RXH_L4_B_2_3))3640 return -EINVAL;3641 3642 switch (nfc->flow_type) {3643 case TCP_V4_FLOW:3644 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_TCP, flow_pctypes);3645 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE,3646 pf->hw.caps))3647 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK,3648 flow_pctypes);3649 break;3650 case TCP_V6_FLOW:3651 set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_TCP, flow_pctypes);3652 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE,3653 pf->hw.caps))3654 set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK,3655 flow_pctypes);3656 break;3657 case UDP_V4_FLOW:3658 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_UDP, flow_pctypes);3659 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE,3660 pf->hw.caps)) {3661 set_bit(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP,3662 flow_pctypes);3663 set_bit(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP,3664 flow_pctypes);3665 }3666 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);3667 break;3668 case UDP_V6_FLOW:3669 set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_UDP, flow_pctypes);3670 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE,3671 pf->hw.caps)) {3672 set_bit(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP,3673 flow_pctypes);3674 set_bit(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP,3675 flow_pctypes);3676 }3677 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);3678 break;3679 case AH_ESP_V4_FLOW:3680 case AH_V4_FLOW:3681 case ESP_V4_FLOW:3682 case SCTP_V4_FLOW:3683 if ((nfc->data & RXH_L4_B_0_1) ||3684 (nfc->data & RXH_L4_B_2_3))3685 return -EINVAL;3686 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);3687 break;3688 case AH_ESP_V6_FLOW:3689 case AH_V6_FLOW:3690 case ESP_V6_FLOW:3691 case SCTP_V6_FLOW:3692 if ((nfc->data & RXH_L4_B_0_1) ||3693 (nfc->data & RXH_L4_B_2_3))3694 return -EINVAL;3695 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);3696 break;3697 case IPV4_FLOW:3698 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) |3699 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);3700 break;3701 case IPV6_FLOW:3702 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) |3703 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);3704 break;3705 default:3706 return -EINVAL;3707 }3708 3709 if (bitmap_weight(flow_pctypes, FLOW_PCTYPES_SIZE)) {3710 u8 flow_id;3711 3712 for_each_set_bit(flow_id, flow_pctypes, FLOW_PCTYPES_SIZE) {3713 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id)) |3714 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id)) << 32);3715 i_set = i40e_get_rss_hash_bits(&pf->hw, nfc, i_setc);3716 3717 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id),3718 (u32)i_set);3719 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id),3720 (u32)(i_set >> 32));3721 hena |= BIT_ULL(flow_id);3722 }3723 }3724 3725 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena);3726 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));3727 i40e_flush(hw);3728 3729 return 0;3730}3731 3732/**3733 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry3734 * @vsi: Pointer to the targeted VSI3735 * @input: The filter to update or NULL to indicate deletion3736 * @sw_idx: Software index to the filter3737 * @cmd: The command to get or set Rx flow classification rules3738 *3739 * This function updates (or deletes) a Flow Director entry from3740 * the hlist of the corresponding PF3741 *3742 * Returns 0 on success3743 **/3744static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi,3745 struct i40e_fdir_filter *input,3746 u16 sw_idx,3747 struct ethtool_rxnfc *cmd)3748{3749 struct i40e_fdir_filter *rule, *parent;3750 struct i40e_pf *pf = vsi->back;3751 struct hlist_node *node2;3752 int err = -EINVAL;3753 3754 parent = NULL;3755 rule = NULL;3756 3757 hlist_for_each_entry_safe(rule, node2,3758 &pf->fdir_filter_list, fdir_node) {3759 /* hash found, or no matching entry */3760 if (rule->fd_id >= sw_idx)3761 break;3762 parent = rule;3763 }3764 3765 /* if there is an old rule occupying our place remove it */3766 if (rule && (rule->fd_id == sw_idx)) {3767 /* Remove this rule, since we're either deleting it, or3768 * replacing it.3769 */3770 err = i40e_add_del_fdir(vsi, rule, false);3771 hlist_del(&rule->fdir_node);3772 kfree(rule);3773 pf->fdir_pf_active_filters--;3774 }3775 3776 /* If we weren't given an input, this is a delete, so just return the3777 * error code indicating if there was an entry at the requested slot3778 */3779 if (!input)3780 return err;3781 3782 /* Otherwise, install the new rule as requested */3783 INIT_HLIST_NODE(&input->fdir_node);3784 3785 /* add filter to the list */3786 if (parent)3787 hlist_add_behind(&input->fdir_node, &parent->fdir_node);3788 else3789 hlist_add_head(&input->fdir_node,3790 &pf->fdir_filter_list);3791 3792 /* update counts */3793 pf->fdir_pf_active_filters++;3794 3795 return 0;3796}3797 3798/**3799 * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table3800 * @pf: pointer to PF structure3801 *3802 * This function searches the list of filters and determines which FLX_PIT3803 * entries are still required. It will prune any entries which are no longer3804 * in use after the deletion.3805 **/3806static void i40e_prune_flex_pit_list(struct i40e_pf *pf)3807{3808 struct i40e_flex_pit *entry, *tmp;3809 struct i40e_fdir_filter *rule;3810 3811 /* First, we'll check the l3 table */3812 list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) {3813 bool found = false;3814 3815 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) {3816 if (rule->flow_type != IP_USER_FLOW)3817 continue;3818 if (rule->flex_filter &&3819 rule->flex_offset == entry->src_offset) {3820 found = true;3821 break;3822 }3823 }3824 3825 /* If we didn't find the filter, then we can prune this entry3826 * from the list.3827 */3828 if (!found) {3829 list_del(&entry->list);3830 kfree(entry);3831 }3832 }3833 3834 /* Followed by the L4 table */3835 list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) {3836 bool found = false;3837 3838 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) {3839 /* Skip this filter if it's L3, since we already3840 * checked those in the above loop3841 */3842 if (rule->flow_type == IP_USER_FLOW)3843 continue;3844 if (rule->flex_filter &&3845 rule->flex_offset == entry->src_offset) {3846 found = true;3847 break;3848 }3849 }3850 3851 /* If we didn't find the filter, then we can prune this entry3852 * from the list.3853 */3854 if (!found) {3855 list_del(&entry->list);3856 kfree(entry);3857 }3858 }3859}3860 3861/**3862 * i40e_del_fdir_entry - Deletes a Flow Director filter entry3863 * @vsi: Pointer to the targeted VSI3864 * @cmd: The command to get or set Rx flow classification rules3865 *3866 * The function removes a Flow Director filter entry from the3867 * hlist of the corresponding PF3868 *3869 * Returns 0 on success3870 */3871static int i40e_del_fdir_entry(struct i40e_vsi *vsi,3872 struct ethtool_rxnfc *cmd)3873{3874 struct ethtool_rx_flow_spec *fsp =3875 (struct ethtool_rx_flow_spec *)&cmd->fs;3876 struct i40e_pf *pf = vsi->back;3877 int ret = 0;3878 3879 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||3880 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))3881 return -EBUSY;3882 3883 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))3884 return -EBUSY;3885 3886 ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd);3887 3888 i40e_prune_flex_pit_list(pf);3889 3890 i40e_fdir_check_and_reenable(pf);3891 return ret;3892}3893 3894/**3895 * i40e_unused_pit_index - Find an unused PIT index for given list3896 * @pf: the PF data structure3897 *3898 * Find the first unused flexible PIT index entry. We search both the L3 and3899 * L4 flexible PIT lists so that the returned index is unique and unused by3900 * either currently programmed L3 or L4 filters. We use a bit field as storage3901 * to track which indexes are already used.3902 **/3903static u8 i40e_unused_pit_index(struct i40e_pf *pf)3904{3905 unsigned long available_index = 0xFF;3906 struct i40e_flex_pit *entry;3907 3908 /* We need to make sure that the new index isn't in use by either L33909 * or L4 filters so that IP_USER_FLOW filters can program both L3 and3910 * L4 to use the same index.3911 */3912 3913 list_for_each_entry(entry, &pf->l4_flex_pit_list, list)3914 clear_bit(entry->pit_index, &available_index);3915 3916 list_for_each_entry(entry, &pf->l3_flex_pit_list, list)3917 clear_bit(entry->pit_index, &available_index);3918 3919 return find_first_bit(&available_index, 8);3920}3921 3922/**3923 * i40e_find_flex_offset - Find an existing flex src_offset3924 * @flex_pit_list: L3 or L4 flex PIT list3925 * @src_offset: new src_offset to find3926 *3927 * Searches the flex_pit_list for an existing offset. If no offset is3928 * currently programmed, then this will return an ERR_PTR if there is no space3929 * to add a new offset, otherwise it returns NULL.3930 **/3931static3932struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list,3933 u16 src_offset)3934{3935 struct i40e_flex_pit *entry;3936 int size = 0;3937 3938 /* Search for the src_offset first. If we find a matching entry3939 * already programmed, we can simply re-use it.3940 */3941 list_for_each_entry(entry, flex_pit_list, list) {3942 size++;3943 if (entry->src_offset == src_offset)3944 return entry;3945 }3946 3947 /* If we haven't found an entry yet, then the provided src offset has3948 * not yet been programmed. We will program the src offset later on,3949 * but we need to indicate whether there is enough space to do so3950 * here. We'll make use of ERR_PTR for this purpose.3951 */3952 if (size >= I40E_FLEX_PIT_TABLE_SIZE)3953 return ERR_PTR(-ENOSPC);3954 3955 return NULL;3956}3957 3958/**3959 * i40e_add_flex_offset - Add src_offset to flex PIT table list3960 * @flex_pit_list: L3 or L4 flex PIT list3961 * @src_offset: new src_offset to add3962 * @pit_index: the PIT index to program3963 *3964 * This function programs the new src_offset to the list. It is expected that3965 * i40e_find_flex_offset has already been tried and returned NULL, indicating3966 * that this offset is not programmed, and that the list has enough space to3967 * store another offset.3968 *3969 * Returns 0 on success, and negative value on error.3970 **/3971static int i40e_add_flex_offset(struct list_head *flex_pit_list,3972 u16 src_offset,3973 u8 pit_index)3974{3975 struct i40e_flex_pit *new_pit, *entry;3976 3977 new_pit = kzalloc(sizeof(*entry), GFP_KERNEL);3978 if (!new_pit)3979 return -ENOMEM;3980 3981 new_pit->src_offset = src_offset;3982 new_pit->pit_index = pit_index;3983 3984 /* We need to insert this item such that the list is sorted by3985 * src_offset in ascending order.3986 */3987 list_for_each_entry(entry, flex_pit_list, list) {3988 if (new_pit->src_offset < entry->src_offset) {3989 list_add_tail(&new_pit->list, &entry->list);3990 return 0;3991 }3992 3993 /* If we found an entry with our offset already programmed we3994 * can simply return here, after freeing the memory. However,3995 * if the pit_index does not match we need to report an error.3996 */3997 if (new_pit->src_offset == entry->src_offset) {3998 int err = 0;3999 4000 /* If the PIT index is not the same we can't re-use4001 * the entry, so we must report an error.4002 */4003 if (new_pit->pit_index != entry->pit_index)4004 err = -EINVAL;4005 4006 kfree(new_pit);4007 return err;4008 }4009 }4010 4011 /* If we reached here, then we haven't yet added the item. This means4012 * that we should add the item at the end of the list.4013 */4014 list_add_tail(&new_pit->list, flex_pit_list);4015 return 0;4016}4017 4018/**4019 * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table4020 * @pf: Pointer to the PF structure4021 * @flex_pit_list: list of flexible src offsets in use4022 * @flex_pit_start: index to first entry for this section of the table4023 *4024 * In order to handle flexible data, the hardware uses a table of values4025 * called the FLX_PIT table. This table is used to indicate which sections of4026 * the input correspond to what PIT index values. Unfortunately, hardware is4027 * very restrictive about programming this table. Entries must be ordered by4028 * src_offset in ascending order, without duplicates. Additionally, unused4029 * entries must be set to the unused index value, and must have valid size and4030 * length according to the src_offset ordering.4031 *4032 * This function will reprogram the FLX_PIT register from a book-keeping4033 * structure that we guarantee is already ordered correctly, and has no more4034 * than 3 entries.4035 *4036 * To make things easier, we only support flexible values of one word length,4037 * rather than allowing variable length flexible values.4038 **/4039static void __i40e_reprogram_flex_pit(struct i40e_pf *pf,4040 struct list_head *flex_pit_list,4041 int flex_pit_start)4042{4043 struct i40e_flex_pit *entry = NULL;4044 u16 last_offset = 0;4045 int i = 0, j = 0;4046 4047 /* First, loop over the list of flex PIT entries, and reprogram the4048 * registers.4049 */4050 list_for_each_entry(entry, flex_pit_list, list) {4051 /* We have to be careful when programming values for the4052 * largest SRC_OFFSET value. It is possible that adding4053 * additional empty values at the end would overflow the space4054 * for the SRC_OFFSET in the FLX_PIT register. To avoid this,4055 * we check here and add the empty values prior to adding the4056 * largest value.4057 *4058 * To determine this, we will use a loop from i+1 to 3, which4059 * will determine whether the unused entries would have valid4060 * SRC_OFFSET. Note that there cannot be extra entries past4061 * this value, because the only valid values would have been4062 * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not4063 * have been added to the list in the first place.4064 */4065 for (j = i + 1; j < 3; j++) {4066 u16 offset = entry->src_offset + j;4067 int index = flex_pit_start + i;4068 u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED,4069 1,4070 offset - 3);4071 4072 if (offset > I40E_MAX_FLEX_SRC_OFFSET) {4073 i40e_write_rx_ctl(&pf->hw,4074 I40E_PRTQF_FLX_PIT(index),4075 value);4076 i++;4077 }4078 }4079 4080 /* Now, we can program the actual value into the table */4081 i40e_write_rx_ctl(&pf->hw,4082 I40E_PRTQF_FLX_PIT(flex_pit_start + i),4083 I40E_FLEX_PREP_VAL(entry->pit_index + 50,4084 1,4085 entry->src_offset));4086 i++;4087 }4088 4089 /* In order to program the last entries in the table, we need to4090 * determine the valid offset. If the list is empty, we'll just start4091 * with 0. Otherwise, we'll start with the last item offset and add 1.4092 * This ensures that all entries have valid sizes. If we don't do this4093 * correctly, the hardware will disable flexible field parsing.4094 */4095 if (!list_empty(flex_pit_list))4096 last_offset = list_prev_entry(entry, list)->src_offset + 1;4097 4098 for (; i < 3; i++, last_offset++) {4099 i40e_write_rx_ctl(&pf->hw,4100 I40E_PRTQF_FLX_PIT(flex_pit_start + i),4101 I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED,4102 1,4103 last_offset));4104 }4105}4106 4107/**4108 * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change4109 * @pf: pointer to the PF structure4110 *4111 * This function reprograms both the L3 and L4 FLX_PIT tables. See the4112 * internal helper function for implementation details.4113 **/4114static void i40e_reprogram_flex_pit(struct i40e_pf *pf)4115{4116 __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list,4117 I40E_FLEX_PIT_IDX_START_L3);4118 4119 __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list,4120 I40E_FLEX_PIT_IDX_START_L4);4121 4122 /* We also need to program the L3 and L4 GLQF ORT register */4123 i40e_write_rx_ctl(&pf->hw,4124 I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX),4125 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3,4126 3, 1));4127 4128 i40e_write_rx_ctl(&pf->hw,4129 I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX),4130 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4,4131 3, 1));4132}4133 4134/**4135 * i40e_flow_str - Converts a flow_type into a human readable string4136 * @fsp: the flow specification4137 *4138 * Currently only flow types we support are included here, and the string4139 * value attempts to match what ethtool would use to configure this flow type.4140 **/4141static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp)4142{4143 switch (fsp->flow_type & ~FLOW_EXT) {4144 case TCP_V4_FLOW:4145 return "tcp4";4146 case UDP_V4_FLOW:4147 return "udp4";4148 case SCTP_V4_FLOW:4149 return "sctp4";4150 case IP_USER_FLOW:4151 return "ip4";4152 case TCP_V6_FLOW:4153 return "tcp6";4154 case UDP_V6_FLOW:4155 return "udp6";4156 case SCTP_V6_FLOW:4157 return "sctp6";4158 case IPV6_USER_FLOW:4159 return "ip6";4160 default:4161 return "unknown";4162 }4163}4164 4165/**4166 * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index4167 * @pit_index: PIT index to convert4168 *4169 * Returns the mask for a given PIT index. Will return 0 if the pit_index is4170 * of range.4171 **/4172static u64 i40e_pit_index_to_mask(int pit_index)4173{4174 switch (pit_index) {4175 case 0:4176 return I40E_FLEX_50_MASK;4177 case 1:4178 return I40E_FLEX_51_MASK;4179 case 2:4180 return I40E_FLEX_52_MASK;4181 case 3:4182 return I40E_FLEX_53_MASK;4183 case 4:4184 return I40E_FLEX_54_MASK;4185 case 5:4186 return I40E_FLEX_55_MASK;4187 case 6:4188 return I40E_FLEX_56_MASK;4189 case 7:4190 return I40E_FLEX_57_MASK;4191 default:4192 return 0;4193 }4194}4195 4196/**4197 * i40e_print_input_set - Show changes between two input sets4198 * @vsi: the vsi being configured4199 * @old: the old input set4200 * @new: the new input set4201 *4202 * Print the difference between old and new input sets by showing which series4203 * of words are toggled on or off. Only displays the bits we actually support4204 * changing.4205 **/4206static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new)4207{4208 struct i40e_pf *pf = vsi->back;4209 bool old_value, new_value;4210 int i;4211 4212 old_value = !!(old & I40E_L3_SRC_MASK);4213 new_value = !!(new & I40E_L3_SRC_MASK);4214 if (old_value != new_value)4215 netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n",4216 old_value ? "ON" : "OFF",4217 new_value ? "ON" : "OFF");4218 4219 old_value = !!(old & I40E_L3_DST_MASK);4220 new_value = !!(new & I40E_L3_DST_MASK);4221 if (old_value != new_value)4222 netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n",4223 old_value ? "ON" : "OFF",4224 new_value ? "ON" : "OFF");4225 4226 old_value = !!(old & I40E_L4_SRC_MASK);4227 new_value = !!(new & I40E_L4_SRC_MASK);4228 if (old_value != new_value)4229 netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n",4230 old_value ? "ON" : "OFF",4231 new_value ? "ON" : "OFF");4232 4233 old_value = !!(old & I40E_L4_DST_MASK);4234 new_value = !!(new & I40E_L4_DST_MASK);4235 if (old_value != new_value)4236 netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n",4237 old_value ? "ON" : "OFF",4238 new_value ? "ON" : "OFF");4239 4240 old_value = !!(old & I40E_VERIFY_TAG_MASK);4241 new_value = !!(new & I40E_VERIFY_TAG_MASK);4242 if (old_value != new_value)4243 netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n",4244 old_value ? "ON" : "OFF",4245 new_value ? "ON" : "OFF");4246 4247 /* Show change of flexible filter entries */4248 for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) {4249 u64 flex_mask = i40e_pit_index_to_mask(i);4250 4251 old_value = !!(old & flex_mask);4252 new_value = !!(new & flex_mask);4253 if (old_value != new_value)4254 netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n",4255 i,4256 old_value ? "ON" : "OFF",4257 new_value ? "ON" : "OFF");4258 }4259 4260 netif_info(pf, drv, vsi->netdev, " Current input set: %0llx\n",4261 old);4262 netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n",4263 new);4264}4265 4266/**4267 * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid4268 * @vsi: pointer to the targeted VSI4269 * @fsp: pointer to Rx flow specification4270 * @userdef: userdefined data from flow specification4271 *4272 * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support4273 * for partial matches exists with a few limitations. First, hardware only4274 * supports masking by word boundary (2 bytes) and not per individual bit.4275 * Second, hardware is limited to using one mask for a flow type and cannot4276 * use a separate mask for each filter.4277 *4278 * To support these limitations, if we already have a configured filter for4279 * the specified type, this function enforces that new filters of the type4280 * match the configured input set. Otherwise, if we do not have a filter of4281 * the specified type, we allow the input set to be updated to match the4282 * desired filter.4283 *4284 * To help ensure that administrators understand why filters weren't displayed4285 * as supported, we print a diagnostic message displaying how the input set4286 * would change and warning to delete the preexisting filters if required.4287 *4288 * Returns 0 on successful input set match, and a negative return code on4289 * failure.4290 **/4291static int i40e_check_fdir_input_set(struct i40e_vsi *vsi,4292 struct ethtool_rx_flow_spec *fsp,4293 struct i40e_rx_flow_userdef *userdef)4294{4295 static const __be32 ipv6_full_mask[4] = {cpu_to_be32(0xffffffff),4296 cpu_to_be32(0xffffffff), cpu_to_be32(0xffffffff),4297 cpu_to_be32(0xffffffff)};4298 struct ethtool_tcpip6_spec *tcp_ip6_spec;4299 struct ethtool_usrip6_spec *usr_ip6_spec;4300 struct ethtool_tcpip4_spec *tcp_ip4_spec;4301 struct ethtool_usrip4_spec *usr_ip4_spec;4302 struct i40e_pf *pf = vsi->back;4303 u64 current_mask, new_mask;4304 bool new_flex_offset = false;4305 bool flex_l3 = false;4306 u16 *fdir_filter_count;4307 u16 index, src_offset = 0;4308 u8 pit_index = 0;4309 int err;4310 4311 switch (fsp->flow_type & ~FLOW_EXT) {4312 case SCTP_V4_FLOW:4313 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP;4314 fdir_filter_count = &pf->fd_sctp4_filter_cnt;4315 break;4316 case TCP_V4_FLOW:4317 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;4318 fdir_filter_count = &pf->fd_tcp4_filter_cnt;4319 break;4320 case UDP_V4_FLOW:4321 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;4322 fdir_filter_count = &pf->fd_udp4_filter_cnt;4323 break;4324 case SCTP_V6_FLOW:4325 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP;4326 fdir_filter_count = &pf->fd_sctp6_filter_cnt;4327 break;4328 case TCP_V6_FLOW:4329 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;4330 fdir_filter_count = &pf->fd_tcp6_filter_cnt;4331 break;4332 case UDP_V6_FLOW:4333 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;4334 fdir_filter_count = &pf->fd_udp6_filter_cnt;4335 break;4336 case IP_USER_FLOW:4337 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;4338 fdir_filter_count = &pf->fd_ip4_filter_cnt;4339 flex_l3 = true;4340 break;4341 case IPV6_USER_FLOW:4342 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER;4343 fdir_filter_count = &pf->fd_ip6_filter_cnt;4344 flex_l3 = true;4345 break;4346 default:4347 return -EOPNOTSUPP;4348 }4349 4350 /* Read the current input set from register memory. */4351 current_mask = i40e_read_fd_input_set(pf, index);4352 new_mask = current_mask;4353 4354 /* Determine, if any, the required changes to the input set in order4355 * to support the provided mask.4356 *4357 * Hardware only supports masking at word (2 byte) granularity and does4358 * not support full bitwise masking. This implementation simplifies4359 * even further and only supports fully enabled or fully disabled4360 * masks for each field, even though we could split the ip4src and4361 * ip4dst fields.4362 */4363 switch (fsp->flow_type & ~FLOW_EXT) {4364 case SCTP_V4_FLOW:4365 new_mask &= ~I40E_VERIFY_TAG_MASK;4366 fallthrough;4367 case TCP_V4_FLOW:4368 case UDP_V4_FLOW:4369 tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec;4370 4371 /* IPv4 source address */4372 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF))4373 new_mask |= I40E_L3_SRC_MASK;4374 else if (!tcp_ip4_spec->ip4src)4375 new_mask &= ~I40E_L3_SRC_MASK;4376 else4377 return -EOPNOTSUPP;4378 4379 /* IPv4 destination address */4380 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF))4381 new_mask |= I40E_L3_DST_MASK;4382 else if (!tcp_ip4_spec->ip4dst)4383 new_mask &= ~I40E_L3_DST_MASK;4384 else4385 return -EOPNOTSUPP;4386 4387 /* L4 source port */4388 if (tcp_ip4_spec->psrc == htons(0xFFFF))4389 new_mask |= I40E_L4_SRC_MASK;4390 else if (!tcp_ip4_spec->psrc)4391 new_mask &= ~I40E_L4_SRC_MASK;4392 else4393 return -EOPNOTSUPP;4394 4395 /* L4 destination port */4396 if (tcp_ip4_spec->pdst == htons(0xFFFF))4397 new_mask |= I40E_L4_DST_MASK;4398 else if (!tcp_ip4_spec->pdst)4399 new_mask &= ~I40E_L4_DST_MASK;4400 else4401 return -EOPNOTSUPP;4402 4403 /* Filtering on Type of Service is not supported. */4404 if (tcp_ip4_spec->tos)4405 return -EOPNOTSUPP;4406 4407 break;4408 case SCTP_V6_FLOW:4409 new_mask &= ~I40E_VERIFY_TAG_MASK;4410 fallthrough;4411 case TCP_V6_FLOW:4412 case UDP_V6_FLOW:4413 tcp_ip6_spec = &fsp->m_u.tcp_ip6_spec;4414 4415 /* Check if user provided IPv6 source address. */4416 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6src,4417 (struct in6_addr *)&ipv6_full_mask))4418 new_mask |= I40E_L3_V6_SRC_MASK;4419 else if (ipv6_addr_any((struct in6_addr *)4420 &tcp_ip6_spec->ip6src))4421 new_mask &= ~I40E_L3_V6_SRC_MASK;4422 else4423 return -EOPNOTSUPP;4424 4425 /* Check if user provided destination address. */4426 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6dst,4427 (struct in6_addr *)&ipv6_full_mask))4428 new_mask |= I40E_L3_V6_DST_MASK;4429 else if (ipv6_addr_any((struct in6_addr *)4430 &tcp_ip6_spec->ip6dst))4431 new_mask &= ~I40E_L3_V6_DST_MASK;4432 else4433 return -EOPNOTSUPP;4434 4435 /* L4 source port */4436 if (tcp_ip6_spec->psrc == htons(0xFFFF))4437 new_mask |= I40E_L4_SRC_MASK;4438 else if (!tcp_ip6_spec->psrc)4439 new_mask &= ~I40E_L4_SRC_MASK;4440 else4441 return -EOPNOTSUPP;4442 4443 /* L4 destination port */4444 if (tcp_ip6_spec->pdst == htons(0xFFFF))4445 new_mask |= I40E_L4_DST_MASK;4446 else if (!tcp_ip6_spec->pdst)4447 new_mask &= ~I40E_L4_DST_MASK;4448 else4449 return -EOPNOTSUPP;4450 4451 /* Filtering on Traffic Classes is not supported. */4452 if (tcp_ip6_spec->tclass)4453 return -EOPNOTSUPP;4454 break;4455 case IP_USER_FLOW:4456 usr_ip4_spec = &fsp->m_u.usr_ip4_spec;4457 4458 /* IPv4 source address */4459 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF))4460 new_mask |= I40E_L3_SRC_MASK;4461 else if (!usr_ip4_spec->ip4src)4462 new_mask &= ~I40E_L3_SRC_MASK;4463 else4464 return -EOPNOTSUPP;4465 4466 /* IPv4 destination address */4467 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF))4468 new_mask |= I40E_L3_DST_MASK;4469 else if (!usr_ip4_spec->ip4dst)4470 new_mask &= ~I40E_L3_DST_MASK;4471 else4472 return -EOPNOTSUPP;4473 4474 /* First 4 bytes of L4 header */4475 if (usr_ip4_spec->l4_4_bytes)4476 return -EOPNOTSUPP;4477 4478 /* Filtering on Type of Service is not supported. */4479 if (usr_ip4_spec->tos)4480 return -EOPNOTSUPP;4481 4482 /* Filtering on IP version is not supported */4483 if (usr_ip4_spec->ip_ver)4484 return -EINVAL;4485 4486 /* Filtering on L4 protocol is not supported */4487 if (usr_ip4_spec->proto)4488 return -EINVAL;4489 4490 break;4491 case IPV6_USER_FLOW:4492 usr_ip6_spec = &fsp->m_u.usr_ip6_spec;4493 4494 /* Check if user provided IPv6 source address. */4495 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6src,4496 (struct in6_addr *)&ipv6_full_mask))4497 new_mask |= I40E_L3_V6_SRC_MASK;4498 else if (ipv6_addr_any((struct in6_addr *)4499 &usr_ip6_spec->ip6src))4500 new_mask &= ~I40E_L3_V6_SRC_MASK;4501 else4502 return -EOPNOTSUPP;4503 4504 /* Check if user provided destination address. */4505 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6dst,4506 (struct in6_addr *)&ipv6_full_mask))4507 new_mask |= I40E_L3_V6_DST_MASK;4508 else if (ipv6_addr_any((struct in6_addr *)4509 &usr_ip6_spec->ip6dst))4510 new_mask &= ~I40E_L3_V6_DST_MASK;4511 else4512 return -EOPNOTSUPP;4513 4514 if (usr_ip6_spec->l4_4_bytes)4515 return -EOPNOTSUPP;4516 4517 /* Filtering on Traffic class is not supported. */4518 if (usr_ip6_spec->tclass)4519 return -EOPNOTSUPP;4520 4521 /* Filtering on L4 protocol is not supported */4522 if (usr_ip6_spec->l4_proto)4523 return -EINVAL;4524 4525 break;4526 default:4527 return -EOPNOTSUPP;4528 }4529 4530 if (fsp->flow_type & FLOW_EXT) {4531 /* Allow only 802.1Q and no etype defined, as4532 * later it's modified to 0x81004533 */4534 if (fsp->h_ext.vlan_etype != htons(ETH_P_8021Q) &&4535 fsp->h_ext.vlan_etype != 0)4536 return -EOPNOTSUPP;4537 if (fsp->m_ext.vlan_tci == htons(0xFFFF))4538 new_mask |= I40E_VLAN_SRC_MASK;4539 else4540 new_mask &= ~I40E_VLAN_SRC_MASK;4541 }4542 4543 /* First, clear all flexible filter entries */4544 new_mask &= ~I40E_FLEX_INPUT_MASK;4545 4546 /* If we have a flexible filter, try to add this offset to the correct4547 * flexible filter PIT list. Once finished, we can update the mask.4548 * If the src_offset changed, we will get a new mask value which will4549 * trigger an input set change.4550 */4551 if (userdef->flex_filter) {4552 struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL;4553 4554 /* Flexible offset must be even, since the flexible payload4555 * must be aligned on 2-byte boundary.4556 */4557 if (userdef->flex_offset & 0x1) {4558 dev_warn(&pf->pdev->dev,4559 "Flexible data offset must be 2-byte aligned\n");4560 return -EINVAL;4561 }4562 4563 src_offset = userdef->flex_offset >> 1;4564 4565 /* FLX_PIT source offset value is only so large */4566 if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) {4567 dev_warn(&pf->pdev->dev,4568 "Flexible data must reside within first 64 bytes of the packet payload\n");4569 return -EINVAL;4570 }4571 4572 /* See if this offset has already been programmed. If we get4573 * an ERR_PTR, then the filter is not safe to add. Otherwise,4574 * if we get a NULL pointer, this means we will need to add4575 * the offset.4576 */4577 flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list,4578 src_offset);4579 if (IS_ERR(flex_pit))4580 return PTR_ERR(flex_pit);4581 4582 /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown)4583 * packet types, and thus we need to program both L3 and L44584 * flexible values. These must have identical flexible index,4585 * as otherwise we can't correctly program the input set. So4586 * we'll find both an L3 and L4 index and make sure they are4587 * the same.4588 */4589 if (flex_l3) {4590 l3_flex_pit =4591 i40e_find_flex_offset(&pf->l3_flex_pit_list,4592 src_offset);4593 if (IS_ERR(l3_flex_pit))4594 return PTR_ERR(l3_flex_pit);4595 4596 if (flex_pit) {4597 /* If we already had a matching L4 entry, we4598 * need to make sure that the L3 entry we4599 * obtained uses the same index.4600 */4601 if (l3_flex_pit) {4602 if (l3_flex_pit->pit_index !=4603 flex_pit->pit_index) {4604 return -EINVAL;4605 }4606 } else {4607 new_flex_offset = true;4608 }4609 } else {4610 flex_pit = l3_flex_pit;4611 }4612 }4613 4614 /* If we didn't find an existing flex offset, we need to4615 * program a new one. However, we don't immediately program it4616 * here because we will wait to program until after we check4617 * that it is safe to change the input set.4618 */4619 if (!flex_pit) {4620 new_flex_offset = true;4621 pit_index = i40e_unused_pit_index(pf);4622 } else {4623 pit_index = flex_pit->pit_index;4624 }4625 4626 /* Update the mask with the new offset */4627 new_mask |= i40e_pit_index_to_mask(pit_index);4628 }4629 4630 /* If the mask and flexible filter offsets for this filter match the4631 * currently programmed values we don't need any input set change, so4632 * this filter is safe to install.4633 */4634 if (new_mask == current_mask && !new_flex_offset)4635 return 0;4636 4637 netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n",4638 i40e_flow_str(fsp));4639 i40e_print_input_set(vsi, current_mask, new_mask);4640 if (new_flex_offset) {4641 netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d",4642 pit_index, src_offset);4643 }4644 4645 /* Hardware input sets are global across multiple ports, so even the4646 * main port cannot change them when in MFP mode as this would impact4647 * any filters on the other ports.4648 */4649 if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) {4650 netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n");4651 return -EOPNOTSUPP;4652 }4653 4654 /* This filter requires us to update the input set. However, hardware4655 * only supports one input set per flow type, and does not support4656 * separate masks for each filter. This means that we can only support4657 * a single mask for all filters of a specific type.4658 *4659 * If we have preexisting filters, they obviously depend on the4660 * current programmed input set. Display a diagnostic message in this4661 * case explaining why the filter could not be accepted.4662 */4663 if (*fdir_filter_count) {4664 netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n",4665 i40e_flow_str(fsp),4666 *fdir_filter_count);4667 return -EOPNOTSUPP;4668 }4669 4670 i40e_write_fd_input_set(pf, index, new_mask);4671 4672 /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented4673 * frames. If we're programming the input set for IPv4/Other, we also4674 * need to program the IPv4/Fragmented input set. Since we don't have4675 * separate support, we'll always assume and enforce that the two flow4676 * types must have matching input sets.4677 */4678 if (index == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER)4679 i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4,4680 new_mask);4681 4682 /* Add the new offset and update table, if necessary */4683 if (new_flex_offset) {4684 err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset,4685 pit_index);4686 if (err)4687 return err;4688 4689 if (flex_l3) {4690 err = i40e_add_flex_offset(&pf->l3_flex_pit_list,4691 src_offset,4692 pit_index);4693 if (err)4694 return err;4695 }4696 4697 i40e_reprogram_flex_pit(pf);4698 }4699 4700 return 0;4701}4702 4703/**4704 * i40e_match_fdir_filter - Return true of two filters match4705 * @a: pointer to filter struct4706 * @b: pointer to filter struct4707 *4708 * Returns true if the two filters match exactly the same criteria. I.e. they4709 * match the same flow type and have the same parameters. We don't need to4710 * check any input-set since all filters of the same flow type must use the4711 * same input set.4712 **/4713static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a,4714 struct i40e_fdir_filter *b)4715{4716 /* The filters do not much if any of these criteria differ. */4717 if (a->dst_ip != b->dst_ip ||4718 a->src_ip != b->src_ip ||4719 a->dst_port != b->dst_port ||4720 a->src_port != b->src_port ||4721 a->flow_type != b->flow_type ||4722 a->ipl4_proto != b->ipl4_proto ||4723 a->vlan_tag != b->vlan_tag ||4724 a->vlan_etype != b->vlan_etype)4725 return false;4726 4727 return true;4728}4729 4730/**4731 * i40e_disallow_matching_filters - Check that new filters differ4732 * @vsi: pointer to the targeted VSI4733 * @input: new filter to check4734 *4735 * Due to hardware limitations, it is not possible for two filters that match4736 * similar criteria to be programmed at the same time. This is true for a few4737 * reasons:4738 *4739 * (a) all filters matching a particular flow type must use the same input4740 * set, that is they must match the same criteria.4741 * (b) different flow types will never match the same packet, as the flow type4742 * is decided by hardware before checking which rules apply.4743 * (c) hardware has no way to distinguish which order filters apply in.4744 *4745 * Due to this, we can't really support using the location data to order4746 * filters in the hardware parsing. It is technically possible for the user to4747 * request two filters matching the same criteria but which select different4748 * queues. In this case, rather than keep both filters in the list, we reject4749 * the 2nd filter when the user requests adding it.4750 *4751 * This avoids needing to track location for programming the filter to4752 * hardware, and ensures that we avoid some strange scenarios involving4753 * deleting filters which match the same criteria.4754 **/4755static int i40e_disallow_matching_filters(struct i40e_vsi *vsi,4756 struct i40e_fdir_filter *input)4757{4758 struct i40e_pf *pf = vsi->back;4759 struct i40e_fdir_filter *rule;4760 struct hlist_node *node2;4761 4762 /* Loop through every filter, and check that it doesn't match */4763 hlist_for_each_entry_safe(rule, node2,4764 &pf->fdir_filter_list, fdir_node) {4765 /* Don't check the filters match if they share the same fd_id,4766 * since the new filter is actually just updating the target4767 * of the old filter.4768 */4769 if (rule->fd_id == input->fd_id)4770 continue;4771 4772 /* If any filters match, then print a warning message to the4773 * kernel message buffer and bail out.4774 */4775 if (i40e_match_fdir_filter(rule, input)) {4776 dev_warn(&pf->pdev->dev,4777 "Existing user defined filter %d already matches this flow.\n",4778 rule->fd_id);4779 return -EINVAL;4780 }4781 }4782 4783 return 0;4784}4785 4786/**4787 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters4788 * @vsi: pointer to the targeted VSI4789 * @cmd: command to get or set RX flow classification rules4790 *4791 * Add Flow Director filters for a specific flow spec based on their4792 * protocol. Returns 0 if the filters were successfully added.4793 **/4794static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,4795 struct ethtool_rxnfc *cmd)4796{4797 struct i40e_rx_flow_userdef userdef;4798 struct ethtool_rx_flow_spec *fsp;4799 struct i40e_fdir_filter *input;4800 u16 dest_vsi = 0, q_index = 0;4801 struct i40e_pf *pf;4802 int ret = -EINVAL;4803 u8 dest_ctl;4804 4805 if (!vsi)4806 return -EINVAL;4807 pf = vsi->back;4808 4809 if (!test_bit(I40E_FLAG_FD_SB_ENA, pf->flags))4810 return -EOPNOTSUPP;4811 4812 if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state))4813 return -ENOSPC;4814 4815 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||4816 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))4817 return -EBUSY;4818 4819 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))4820 return -EBUSY;4821 4822 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;4823 4824 /* Parse the user-defined field */4825 if (i40e_parse_rx_flow_user_data(fsp, &userdef))4826 return -EINVAL;4827 4828 /* Extended MAC field is not supported */4829 if (fsp->flow_type & FLOW_MAC_EXT)4830 return -EINVAL;4831 4832 ret = i40e_check_fdir_input_set(vsi, fsp, &userdef);4833 if (ret)4834 return ret;4835 4836 if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort +4837 pf->hw.func_caps.fd_filters_guaranteed)) {4838 return -EINVAL;4839 }4840 4841 /* ring_cookie is either the drop index, or is a mask of the queue4842 * index and VF id we wish to target.4843 */4844 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) {4845 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;4846 } else {4847 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie);4848 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie);4849 4850 if (!vf) {4851 if (ring >= vsi->num_queue_pairs)4852 return -EINVAL;4853 dest_vsi = vsi->id;4854 } else {4855 /* VFs are zero-indexed, so we subtract one here */4856 vf--;4857 4858 if (vf >= pf->num_alloc_vfs)4859 return -EINVAL;4860 if (ring >= pf->vf[vf].num_queue_pairs)4861 return -EINVAL;4862 dest_vsi = pf->vf[vf].lan_vsi_id;4863 }4864 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;4865 q_index = ring;4866 }4867 4868 input = kzalloc(sizeof(*input), GFP_KERNEL);4869 4870 if (!input)4871 return -ENOMEM;4872 4873 input->fd_id = fsp->location;4874 input->q_index = q_index;4875 input->dest_vsi = dest_vsi;4876 input->dest_ctl = dest_ctl;4877 input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID;4878 input->cnt_index = I40E_FD_SB_STAT_IDX(pf->hw.pf_id);4879 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src;4880 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst;4881 input->flow_type = fsp->flow_type & ~FLOW_EXT;4882 4883 input->vlan_etype = fsp->h_ext.vlan_etype;4884 if (!fsp->m_ext.vlan_etype && fsp->h_ext.vlan_tci)4885 input->vlan_etype = cpu_to_be16(ETH_P_8021Q);4886 if (fsp->m_ext.vlan_tci && input->vlan_etype)4887 input->vlan_tag = fsp->h_ext.vlan_tci;4888 if (input->flow_type == IPV6_USER_FLOW ||4889 input->flow_type == UDP_V6_FLOW ||4890 input->flow_type == TCP_V6_FLOW ||4891 input->flow_type == SCTP_V6_FLOW) {4892 /* Reverse the src and dest notion, since the HW expects them4893 * to be from Tx perspective where as the input from user is4894 * from Rx filter view.4895 */4896 input->ipl4_proto = fsp->h_u.usr_ip6_spec.l4_proto;4897 input->dst_port = fsp->h_u.tcp_ip6_spec.psrc;4898 input->src_port = fsp->h_u.tcp_ip6_spec.pdst;4899 memcpy(input->dst_ip6, fsp->h_u.ah_ip6_spec.ip6src,4900 sizeof(__be32) * 4);4901 memcpy(input->src_ip6, fsp->h_u.ah_ip6_spec.ip6dst,4902 sizeof(__be32) * 4);4903 } else {4904 /* Reverse the src and dest notion, since the HW expects them4905 * to be from Tx perspective where as the input from user is4906 * from Rx filter view.4907 */4908 input->ipl4_proto = fsp->h_u.usr_ip4_spec.proto;4909 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc;4910 input->src_port = fsp->h_u.tcp_ip4_spec.pdst;4911 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src;4912 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst;4913 }4914 4915 if (userdef.flex_filter) {4916 input->flex_filter = true;4917 input->flex_word = cpu_to_be16(userdef.flex_word);4918 input->flex_offset = userdef.flex_offset;4919 }4920 4921 /* Avoid programming two filters with identical match criteria. */4922 ret = i40e_disallow_matching_filters(vsi, input);4923 if (ret)4924 goto free_filter_memory;4925 4926 /* Add the input filter to the fdir_input_list, possibly replacing4927 * a previous filter. Do not free the input structure after adding it4928 * to the list as this would cause a use-after-free bug.4929 */4930 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL);4931 ret = i40e_add_del_fdir(vsi, input, true);4932 if (ret)4933 goto remove_sw_rule;4934 return 0;4935 4936remove_sw_rule:4937 hlist_del(&input->fdir_node);4938 pf->fdir_pf_active_filters--;4939free_filter_memory:4940 kfree(input);4941 return ret;4942}4943 4944/**4945 * i40e_set_rxnfc - command to set RX flow classification rules4946 * @netdev: network interface device structure4947 * @cmd: ethtool rxnfc command4948 *4949 * Returns Success if the command is supported.4950 **/4951static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)4952{4953 struct i40e_netdev_priv *np = netdev_priv(netdev);4954 struct i40e_vsi *vsi = np->vsi;4955 struct i40e_pf *pf = vsi->back;4956 int ret = -EOPNOTSUPP;4957 4958 switch (cmd->cmd) {4959 case ETHTOOL_SRXFH:4960 ret = i40e_set_rss_hash_opt(pf, cmd);4961 break;4962 case ETHTOOL_SRXCLSRLINS:4963 ret = i40e_add_fdir_ethtool(vsi, cmd);4964 break;4965 case ETHTOOL_SRXCLSRLDEL:4966 ret = i40e_del_fdir_entry(vsi, cmd);4967 break;4968 default:4969 break;4970 }4971 4972 return ret;4973}4974 4975/**4976 * i40e_max_channels - get Max number of combined channels supported4977 * @vsi: vsi pointer4978 **/4979static unsigned int i40e_max_channels(struct i40e_vsi *vsi)4980{4981 /* TODO: This code assumes DCB and FD is disabled for now. */4982 return vsi->alloc_queue_pairs;4983}4984 4985/**4986 * i40e_get_channels - Get the current channels enabled and max supported etc.4987 * @dev: network interface device structure4988 * @ch: ethtool channels structure4989 *4990 * We don't support separate tx and rx queues as channels. The other count4991 * represents how many queues are being used for control. max_combined counts4992 * how many queue pairs we can support. They may not be mapped 1 to 1 with4993 * q_vectors since we support a lot more queue pairs than q_vectors.4994 **/4995static void i40e_get_channels(struct net_device *dev,4996 struct ethtool_channels *ch)4997{4998 struct i40e_netdev_priv *np = netdev_priv(dev);4999 struct i40e_vsi *vsi = np->vsi;5000 struct i40e_pf *pf = vsi->back;5001 5002 /* report maximum channels */5003 ch->max_combined = i40e_max_channels(vsi);5004 5005 /* report info for other vector */5006 ch->other_count = test_bit(I40E_FLAG_FD_SB_ENA, pf->flags) ? 1 : 0;5007 ch->max_other = ch->other_count;5008 5009 /* Note: This code assumes DCB is disabled for now. */5010 ch->combined_count = vsi->num_queue_pairs;5011}5012 5013/**5014 * i40e_set_channels - Set the new channels count.5015 * @dev: network interface device structure5016 * @ch: ethtool channels structure5017 *5018 * The new channels count may not be the same as requested by the user5019 * since it gets rounded down to a power of 2 value.5020 **/5021static int i40e_set_channels(struct net_device *dev,5022 struct ethtool_channels *ch)5023{5024 const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;5025 struct i40e_netdev_priv *np = netdev_priv(dev);5026 unsigned int count = ch->combined_count;5027 struct i40e_vsi *vsi = np->vsi;5028 struct i40e_pf *pf = vsi->back;5029 struct i40e_fdir_filter *rule;5030 struct hlist_node *node2;5031 int new_count;5032 int err = 0;5033 5034 /* We do not support setting channels for any other VSI at present */5035 if (vsi->type != I40E_VSI_MAIN)5036 return -EINVAL;5037 5038 /* We do not support setting channels via ethtool when TCs are5039 * configured through mqprio5040 */5041 if (i40e_is_tc_mqprio_enabled(pf))5042 return -EINVAL;5043 5044 /* verify they are not requesting separate vectors */5045 if (!count || ch->rx_count || ch->tx_count)5046 return -EINVAL;5047 5048 /* verify other_count has not changed */5049 if (ch->other_count != (test_bit(I40E_FLAG_FD_SB_ENA, pf->flags) ? 1 : 0))5050 return -EINVAL;5051 5052 /* verify the number of channels does not exceed hardware limits */5053 if (count > i40e_max_channels(vsi))5054 return -EINVAL;5055 5056 /* verify that the number of channels does not invalidate any current5057 * flow director rules5058 */5059 hlist_for_each_entry_safe(rule, node2,5060 &pf->fdir_filter_list, fdir_node) {5061 if (rule->dest_ctl != drop && count <= rule->q_index) {5062 dev_warn(&pf->pdev->dev,5063 "Existing user defined filter %d assigns flow to queue %d\n",5064 rule->fd_id, rule->q_index);5065 err = -EINVAL;5066 }5067 }5068 5069 if (err) {5070 dev_err(&pf->pdev->dev,5071 "Existing filter rules must be deleted to reduce combined channel count to %d\n",5072 count);5073 return err;5074 }5075 5076 /* update feature limits from largest to smallest supported values */5077 /* TODO: Flow director limit, DCB etc */5078 5079 /* use rss_reconfig to rebuild with new queue count and update traffic5080 * class queue mapping5081 */5082 new_count = i40e_reconfig_rss_queues(pf, count);5083 if (new_count > 0)5084 return 0;5085 else5086 return -EINVAL;5087}5088 5089/**5090 * i40e_get_rxfh_key_size - get the RSS hash key size5091 * @netdev: network interface device structure5092 *5093 * Returns the table size.5094 **/5095static u32 i40e_get_rxfh_key_size(struct net_device *netdev)5096{5097 return I40E_HKEY_ARRAY_SIZE;5098}5099 5100/**5101 * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size5102 * @netdev: network interface device structure5103 *5104 * Returns the table size.5105 **/5106static u32 i40e_get_rxfh_indir_size(struct net_device *netdev)5107{5108 return I40E_HLUT_ARRAY_SIZE;5109}5110 5111/**5112 * i40e_get_rxfh - get the rx flow hash indirection table5113 * @netdev: network interface device structure5114 * @rxfh: pointer to param struct (indir, key, hfunc)5115 *5116 * Reads the indirection table directly from the hardware. Returns 0 on5117 * success.5118 **/5119static int i40e_get_rxfh(struct net_device *netdev,5120 struct ethtool_rxfh_param *rxfh)5121{5122 struct i40e_netdev_priv *np = netdev_priv(netdev);5123 struct i40e_vsi *vsi = np->vsi;5124 u8 *lut, *seed = NULL;5125 int ret;5126 u16 i;5127 5128 rxfh->hfunc = ETH_RSS_HASH_TOP;5129 5130 if (!rxfh->indir)5131 return 0;5132 5133 seed = rxfh->key;5134 lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);5135 if (!lut)5136 return -ENOMEM;5137 ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE);5138 if (ret)5139 goto out;5140 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)5141 rxfh->indir[i] = (u32)(lut[i]);5142 5143out:5144 kfree(lut);5145 5146 return ret;5147}5148 5149/**5150 * i40e_set_rxfh - set the rx flow hash indirection table5151 * @netdev: network interface device structure5152 * @rxfh: pointer to param struct (indir, key, hfunc)5153 * @extack: extended ACK from the Netlink message5154 *5155 * Returns -EINVAL if the table specifies an invalid queue id, otherwise5156 * returns 0 after programming the table.5157 **/5158static int i40e_set_rxfh(struct net_device *netdev,5159 struct ethtool_rxfh_param *rxfh,5160 struct netlink_ext_ack *extack)5161{5162 struct i40e_netdev_priv *np = netdev_priv(netdev);5163 struct i40e_vsi *vsi = np->vsi;5164 struct i40e_pf *pf = vsi->back;5165 u8 *seed = NULL;5166 u16 i;5167 5168 if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE &&5169 rxfh->hfunc != ETH_RSS_HASH_TOP)5170 return -EOPNOTSUPP;5171 5172 if (rxfh->key) {5173 if (!vsi->rss_hkey_user) {5174 vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE,5175 GFP_KERNEL);5176 if (!vsi->rss_hkey_user)5177 return -ENOMEM;5178 }5179 memcpy(vsi->rss_hkey_user, rxfh->key, I40E_HKEY_ARRAY_SIZE);5180 seed = vsi->rss_hkey_user;5181 }5182 if (!vsi->rss_lut_user) {5183 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);5184 if (!vsi->rss_lut_user)5185 return -ENOMEM;5186 }5187 5188 /* Each 32 bits pointed by 'indir' is stored with a lut entry */5189 if (rxfh->indir)5190 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)5191 vsi->rss_lut_user[i] = (u8)(rxfh->indir[i]);5192 else5193 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE,5194 vsi->rss_size);5195 5196 return i40e_config_rss(vsi, seed, vsi->rss_lut_user,5197 I40E_HLUT_ARRAY_SIZE);5198}5199 5200/**5201 * i40e_get_priv_flags - report device private flags5202 * @dev: network interface device structure5203 *5204 * The get string set count and the string set should be matched for each5205 * flag returned. Add new strings for each flag to the i40e_gstrings_priv_flags5206 * array.5207 *5208 * Returns a u32 bitmap of flags.5209 **/5210static u32 i40e_get_priv_flags(struct net_device *dev)5211{5212 struct i40e_netdev_priv *np = netdev_priv(dev);5213 struct i40e_vsi *vsi = np->vsi;5214 struct i40e_pf *pf = vsi->back;5215 u32 i, j, ret_flags = 0;5216 5217 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {5218 const struct i40e_priv_flags *priv_flag;5219 5220 priv_flag = &i40e_gstrings_priv_flags[i];5221 5222 if (test_bit(priv_flag->bitno, pf->flags))5223 ret_flags |= BIT(i);5224 }5225 5226 if (pf->hw.pf_id != 0)5227 return ret_flags;5228 5229 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) {5230 const struct i40e_priv_flags *priv_flag;5231 5232 priv_flag = &i40e_gl_gstrings_priv_flags[j];5233 5234 if (test_bit(priv_flag->bitno, pf->flags))5235 ret_flags |= BIT(i + j);5236 }5237 5238 return ret_flags;5239}5240 5241/**5242 * i40e_set_priv_flags - set private flags5243 * @dev: network interface device structure5244 * @flags: bit flags to be set5245 **/5246static int i40e_set_priv_flags(struct net_device *dev, u32 flags)5247{5248 DECLARE_BITMAP(changed_flags, I40E_PF_FLAGS_NBITS);5249 DECLARE_BITMAP(orig_flags, I40E_PF_FLAGS_NBITS);5250 DECLARE_BITMAP(new_flags, I40E_PF_FLAGS_NBITS);5251 struct i40e_netdev_priv *np = netdev_priv(dev);5252 enum i40e_admin_queue_err adq_err;5253 struct i40e_vsi *vsi = np->vsi;5254 struct i40e_pf *pf = vsi->back;5255 u32 reset_needed = 0;5256 int status;5257 u32 i, j;5258 5259 bitmap_copy(orig_flags, pf->flags, I40E_PF_FLAGS_NBITS);5260 bitmap_copy(new_flags, pf->flags, I40E_PF_FLAGS_NBITS);5261 5262 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {5263 const struct i40e_priv_flags *priv_flag;5264 bool new_val;5265 5266 priv_flag = &i40e_gstrings_priv_flags[i];5267 new_val = (flags & BIT(i)) ? true : false;5268 5269 /* If this is a read-only flag, it can't be changed */5270 if (priv_flag->read_only &&5271 test_bit(priv_flag->bitno, orig_flags) != new_val)5272 return -EOPNOTSUPP;5273 5274 if (new_val)5275 set_bit(priv_flag->bitno, new_flags);5276 else5277 clear_bit(priv_flag->bitno, new_flags);5278 }5279 5280 if (pf->hw.pf_id != 0)5281 goto flags_complete;5282 5283 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) {5284 const struct i40e_priv_flags *priv_flag;5285 bool new_val;5286 5287 priv_flag = &i40e_gl_gstrings_priv_flags[j];5288 new_val = (flags & BIT(i + j)) ? true : false;5289 5290 /* If this is a read-only flag, it can't be changed */5291 if (priv_flag->read_only &&5292 test_bit(priv_flag->bitno, orig_flags) != new_val)5293 return -EOPNOTSUPP;5294 5295 if (new_val)5296 set_bit(priv_flag->bitno, new_flags);5297 else5298 clear_bit(priv_flag->bitno, new_flags);5299 }5300 5301flags_complete:5302 bitmap_xor(changed_flags, pf->flags, orig_flags, I40E_PF_FLAGS_NBITS);5303 5304 if (test_bit(I40E_FLAG_FW_LLDP_DIS, changed_flags))5305 reset_needed = I40E_PF_RESET_AND_REBUILD_FLAG;5306 5307 if (test_bit(I40E_FLAG_VEB_STATS_ENA, changed_flags) ||5308 test_bit(I40E_FLAG_LEGACY_RX_ENA, changed_flags) ||5309 test_bit(I40E_FLAG_SOURCE_PRUNING_DIS, changed_flags))5310 reset_needed = BIT(__I40E_PF_RESET_REQUESTED);5311 5312 /* Before we finalize any flag changes, we need to perform some5313 * checks to ensure that the changes are supported and safe.5314 */5315 5316 /* ATR eviction is not supported on all devices */5317 if (test_bit(I40E_FLAG_HW_ATR_EVICT_ENA, new_flags) &&5318 !test_bit(I40E_HW_CAP_ATR_EVICT, pf->hw.caps))5319 return -EOPNOTSUPP;5320 5321 /* If the driver detected FW LLDP was disabled on init, this flag could5322 * be set, however we do not support _changing_ the flag:5323 * - on XL710 if NPAR is enabled or FW API version < 1.75324 * - on X722 with FW API version < 1.65325 * There are situations where older FW versions/NPAR enabled PFs could5326 * disable LLDP, however we _must_ not allow the user to enable/disable5327 * LLDP with this flag on unsupported FW versions.5328 */5329 if (test_bit(I40E_FLAG_FW_LLDP_DIS, changed_flags) &&5330 !test_bit(I40E_HW_CAP_FW_LLDP_STOPPABLE, pf->hw.caps)) {5331 dev_warn(&pf->pdev->dev,5332 "Device does not support changing FW LLDP\n");5333 return -EOPNOTSUPP;5334 }5335 5336 if (test_bit(I40E_FLAG_RS_FEC, changed_flags) &&5337 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 &&5338 pf->hw.device_id != I40E_DEV_ID_25G_B) {5339 dev_warn(&pf->pdev->dev,5340 "Device does not support changing FEC configuration\n");5341 return -EOPNOTSUPP;5342 }5343 5344 if (test_bit(I40E_FLAG_BASE_R_FEC, changed_flags) &&5345 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 &&5346 pf->hw.device_id != I40E_DEV_ID_25G_B &&5347 pf->hw.device_id != I40E_DEV_ID_KX_X722) {5348 dev_warn(&pf->pdev->dev,5349 "Device does not support changing FEC configuration\n");5350 return -EOPNOTSUPP;5351 }5352 5353 /* Process any additional changes needed as a result of flag changes.5354 * The changed_flags value reflects the list of bits that were5355 * changed in the code above.5356 */5357 5358 /* Flush current ATR settings if ATR was disabled */5359 if (test_bit(I40E_FLAG_FD_ATR_ENA, changed_flags) &&5360 !test_bit(I40E_FLAG_FD_ATR_ENA, new_flags)) {5361 set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state);5362 set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state);5363 }5364 5365 if (test_bit(I40E_FLAG_TRUE_PROMISC_ENA, changed_flags)) {5366 u16 sw_flags = 0, valid_flags = 0;5367 int ret;5368 5369 if (!test_bit(I40E_FLAG_TRUE_PROMISC_ENA, new_flags))5370 sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;5371 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;5372 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags,5373 0, NULL);5374 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) {5375 dev_info(&pf->pdev->dev,5376 "couldn't set switch config bits, err %pe aq_err %s\n",5377 ERR_PTR(ret),5378 i40e_aq_str(&pf->hw,5379 pf->hw.aq.asq_last_status));5380 /* not a fatal problem, just keep going */5381 }5382 }5383 5384 if (test_bit(I40E_FLAG_RS_FEC, changed_flags) ||5385 test_bit(I40E_FLAG_BASE_R_FEC, changed_flags)) {5386 u8 fec_cfg = 0;5387 5388 if (test_bit(I40E_FLAG_RS_FEC, new_flags) &&5389 test_bit(I40E_FLAG_BASE_R_FEC, new_flags)) {5390 fec_cfg = I40E_AQ_SET_FEC_AUTO;5391 } else if (test_bit(I40E_FLAG_RS_FEC, new_flags)) {5392 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS |5393 I40E_AQ_SET_FEC_ABILITY_RS);5394 } else if (test_bit(I40E_FLAG_BASE_R_FEC, new_flags)) {5395 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR |5396 I40E_AQ_SET_FEC_ABILITY_KR);5397 }5398 if (i40e_set_fec_cfg(dev, fec_cfg))5399 dev_warn(&pf->pdev->dev, "Cannot change FEC config\n");5400 }5401 5402 if (test_bit(I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, changed_flags) &&5403 test_bit(I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENA, orig_flags)) {5404 dev_err(&pf->pdev->dev,5405 "Setting link-down-on-close not supported on this port (because total-port-shutdown is enabled)\n");5406 return -EOPNOTSUPP;5407 }5408 5409 if (test_bit(I40E_FLAG_VF_VLAN_PRUNING_ENA, changed_flags) &&5410 pf->num_alloc_vfs) {5411 dev_warn(&pf->pdev->dev,5412 "Changing vf-vlan-pruning flag while VF(s) are active is not supported\n");5413 return -EOPNOTSUPP;5414 }5415 5416 if (test_bit(I40E_FLAG_LEGACY_RX_ENA, changed_flags) &&5417 I40E_2K_TOO_SMALL_WITH_PADDING) {5418 dev_warn(&pf->pdev->dev,5419 "2k Rx buffer is too small to fit standard MTU and skb_shared_info\n");5420 return -EOPNOTSUPP;5421 }5422 5423 if (test_bit(I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, changed_flags) &&5424 test_bit(I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, new_flags) &&5425 test_bit(I40E_FLAG_MFP_ENA, new_flags))5426 dev_warn(&pf->pdev->dev,5427 "Turning on link-down-on-close flag may affect other partitions\n");5428 5429 if (test_bit(I40E_FLAG_FW_LLDP_DIS, changed_flags)) {5430 if (test_bit(I40E_FLAG_FW_LLDP_DIS, new_flags)) {5431#ifdef CONFIG_I40E_DCB5432 i40e_dcb_sw_default_config(pf);5433#endif /* CONFIG_I40E_DCB */5434 i40e_aq_cfg_lldp_mib_change_event(&pf->hw, false, NULL);5435 i40e_aq_stop_lldp(&pf->hw, true, false, NULL);5436 } else {5437 status = i40e_aq_start_lldp(&pf->hw, false, NULL);5438 if (status) {5439 adq_err = pf->hw.aq.asq_last_status;5440 switch (adq_err) {5441 case I40E_AQ_RC_EEXIST:5442 dev_warn(&pf->pdev->dev,5443 "FW LLDP agent is already running\n");5444 reset_needed = 0;5445 break;5446 case I40E_AQ_RC_EPERM:5447 dev_warn(&pf->pdev->dev,5448 "Device configuration forbids SW from starting the LLDP agent.\n");5449 return -EINVAL;5450 case I40E_AQ_RC_EAGAIN:5451 dev_warn(&pf->pdev->dev,5452 "Stop FW LLDP agent command is still being processed, please try again in a second.\n");5453 return -EBUSY;5454 default:5455 dev_warn(&pf->pdev->dev,5456 "Starting FW LLDP agent failed: error: %pe, %s\n",5457 ERR_PTR(status),5458 i40e_aq_str(&pf->hw,5459 adq_err));5460 return -EINVAL;5461 }5462 }5463 }5464 }5465 5466 /* Now that we've checked to ensure that the new flags are valid, load5467 * them into place. Since we only modify flags either (a) during5468 * initialization or (b) while holding the RTNL lock, we don't need5469 * anything fancy here.5470 */5471 bitmap_copy(pf->flags, new_flags, I40E_PF_FLAGS_NBITS);5472 5473 /* Issue reset to cause things to take effect, as additional bits5474 * are added we will need to create a mask of bits requiring reset5475 */5476 if (reset_needed)5477 i40e_do_reset(pf, reset_needed, true);5478 5479 return 0;5480}5481 5482/**5483 * i40e_get_module_info - get (Q)SFP+ module type info5484 * @netdev: network interface device structure5485 * @modinfo: module EEPROM size and layout information structure5486 **/5487static int i40e_get_module_info(struct net_device *netdev,5488 struct ethtool_modinfo *modinfo)5489{5490 struct i40e_netdev_priv *np = netdev_priv(netdev);5491 struct i40e_vsi *vsi = np->vsi;5492 struct i40e_pf *pf = vsi->back;5493 struct i40e_hw *hw = &pf->hw;5494 u32 sff8472_comp = 0;5495 u32 sff8472_swap = 0;5496 u32 sff8636_rev = 0;5497 u32 type = 0;5498 int status;5499 5500 /* Check if firmware supports reading module EEPROM. */5501 if (!test_bit(I40E_HW_CAP_AQ_PHY_ACCESS, hw->caps)) {5502 netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n");5503 return -EINVAL;5504 }5505 5506 status = i40e_update_link_info(hw);5507 if (status)5508 return -EIO;5509 5510 if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) {5511 netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n");5512 return -EINVAL;5513 }5514 5515 type = hw->phy.link_info.module_type[0];5516 5517 switch (type) {5518 case I40E_MODULE_TYPE_SFP:5519 status = i40e_aq_get_phy_register(hw,5520 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,5521 I40E_I2C_EEPROM_DEV_ADDR, true,5522 I40E_MODULE_SFF_8472_COMP,5523 &sff8472_comp, NULL);5524 if (status)5525 return -EIO;5526 5527 status = i40e_aq_get_phy_register(hw,5528 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,5529 I40E_I2C_EEPROM_DEV_ADDR, true,5530 I40E_MODULE_SFF_8472_SWAP,5531 &sff8472_swap, NULL);5532 if (status)5533 return -EIO;5534 5535 /* Check if the module requires address swap to access5536 * the other EEPROM memory page.5537 */5538 if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) {5539 netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n");5540 modinfo->type = ETH_MODULE_SFF_8079;5541 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;5542 } else if (sff8472_comp == 0x00) {5543 /* Module is not SFF-8472 compliant */5544 modinfo->type = ETH_MODULE_SFF_8079;5545 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;5546 } else if (!(sff8472_swap & I40E_MODULE_SFF_DDM_IMPLEMENTED)) {5547 /* Module is SFF-8472 compliant but doesn't implement5548 * Digital Diagnostic Monitoring (DDM).5549 */5550 modinfo->type = ETH_MODULE_SFF_8079;5551 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;5552 } else {5553 modinfo->type = ETH_MODULE_SFF_8472;5554 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;5555 }5556 break;5557 case I40E_MODULE_TYPE_QSFP_PLUS:5558 /* Read from memory page 0. */5559 status = i40e_aq_get_phy_register(hw,5560 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,5561 0, true,5562 I40E_MODULE_REVISION_ADDR,5563 &sff8636_rev, NULL);5564 if (status)5565 return -EIO;5566 /* Determine revision compliance byte */5567 if (sff8636_rev > 0x02) {5568 /* Module is SFF-8636 compliant */5569 modinfo->type = ETH_MODULE_SFF_8636;5570 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;5571 } else {5572 modinfo->type = ETH_MODULE_SFF_8436;5573 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;5574 }5575 break;5576 case I40E_MODULE_TYPE_QSFP28:5577 modinfo->type = ETH_MODULE_SFF_8636;5578 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;5579 break;5580 default:5581 netdev_dbg(vsi->netdev, "SFP module type unrecognized or no SFP connector used.\n");5582 return -EOPNOTSUPP;5583 }5584 return 0;5585}5586 5587/**5588 * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents5589 * @netdev: network interface device structure5590 * @ee: EEPROM dump request structure5591 * @data: buffer to be filled with EEPROM contents5592 **/5593static int i40e_get_module_eeprom(struct net_device *netdev,5594 struct ethtool_eeprom *ee,5595 u8 *data)5596{5597 struct i40e_netdev_priv *np = netdev_priv(netdev);5598 struct i40e_vsi *vsi = np->vsi;5599 struct i40e_pf *pf = vsi->back;5600 struct i40e_hw *hw = &pf->hw;5601 bool is_sfp = false;5602 u32 value = 0;5603 int status;5604 int i;5605 5606 if (!ee || !ee->len || !data)5607 return -EINVAL;5608 5609 if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP)5610 is_sfp = true;5611 5612 for (i = 0; i < ee->len; i++) {5613 u32 offset = i + ee->offset;5614 u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0;5615 5616 /* Check if we need to access the other memory page */5617 if (is_sfp) {5618 if (offset >= ETH_MODULE_SFF_8079_LEN) {5619 offset -= ETH_MODULE_SFF_8079_LEN;5620 addr = I40E_I2C_EEPROM_DEV_ADDR2;5621 }5622 } else {5623 while (offset >= ETH_MODULE_SFF_8436_LEN) {5624 /* Compute memory page number and offset. */5625 offset -= ETH_MODULE_SFF_8436_LEN / 2;5626 addr++;5627 }5628 }5629 5630 status = i40e_aq_get_phy_register(hw,5631 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,5632 addr, true, offset, &value, NULL);5633 if (status)5634 return -EIO;5635 data[i] = value;5636 }5637 return 0;5638}5639 5640static void i40e_eee_capability_to_kedata_supported(__le16 eee_capability_,5641 unsigned long *supported)5642{5643 const int eee_capability = le16_to_cpu(eee_capability_);5644 static const int lut[] = {5645 ETHTOOL_LINK_MODE_100baseT_Full_BIT,5646 ETHTOOL_LINK_MODE_1000baseT_Full_BIT,5647 ETHTOOL_LINK_MODE_10000baseT_Full_BIT,5648 ETHTOOL_LINK_MODE_1000baseKX_Full_BIT,5649 ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT,5650 ETHTOOL_LINK_MODE_10000baseKR_Full_BIT,5651 ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT,5652 };5653 5654 linkmode_zero(supported);5655 for (unsigned int i = ARRAY_SIZE(lut); i--; )5656 if (eee_capability & BIT(i + 1))5657 linkmode_set_bit(lut[i], supported);5658}5659 5660static int i40e_get_eee(struct net_device *netdev, struct ethtool_keee *edata)5661{5662 struct i40e_netdev_priv *np = netdev_priv(netdev);5663 struct i40e_aq_get_phy_abilities_resp phy_cfg;5664 struct i40e_vsi *vsi = np->vsi;5665 struct i40e_pf *pf = vsi->back;5666 struct i40e_hw *hw = &pf->hw;5667 int status;5668 5669 /* Get initial PHY capabilities */5670 status = i40e_aq_get_phy_capabilities(hw, false, true, &phy_cfg, NULL);5671 if (status)5672 return -EAGAIN;5673 5674 /* Check whether NIC configuration is compatible with Energy Efficient5675 * Ethernet (EEE) mode.5676 */5677 if (phy_cfg.eee_capability == 0)5678 return -EOPNOTSUPP;5679 5680 i40e_eee_capability_to_kedata_supported(phy_cfg.eee_capability,5681 edata->supported);5682 linkmode_copy(edata->lp_advertised, edata->supported);5683 5684 /* Get current configuration */5685 status = i40e_aq_get_phy_capabilities(hw, false, false, &phy_cfg, NULL);5686 if (status)5687 return -EAGAIN;5688 5689 linkmode_zero(edata->advertised);5690 if (phy_cfg.eee_capability)5691 linkmode_copy(edata->advertised, edata->supported);5692 edata->eee_enabled = !!phy_cfg.eee_capability;5693 edata->tx_lpi_enabled = pf->stats.tx_lpi_status;5694 5695 edata->eee_active = pf->stats.tx_lpi_status && pf->stats.rx_lpi_status;5696 5697 return 0;5698}5699 5700static int i40e_is_eee_param_supported(struct net_device *netdev,5701 struct ethtool_keee *edata)5702{5703 struct i40e_netdev_priv *np = netdev_priv(netdev);5704 struct i40e_vsi *vsi = np->vsi;5705 struct i40e_pf *pf = vsi->back;5706 struct i40e_ethtool_not_used {5707 bool value;5708 const char *name;5709 } param[] = {5710 {!!(edata->advertised[0] & ~edata->supported[0]), "advertise"},5711 {!!edata->tx_lpi_timer, "tx-timer"},5712 {edata->tx_lpi_enabled != pf->stats.tx_lpi_status, "tx-lpi"}5713 };5714 int i;5715 5716 for (i = 0; i < ARRAY_SIZE(param); i++) {5717 if (param[i].value) {5718 netdev_info(netdev,5719 "EEE setting %s not supported\n",5720 param[i].name);5721 return -EOPNOTSUPP;5722 }5723 }5724 5725 return 0;5726}5727 5728static int i40e_set_eee(struct net_device *netdev, struct ethtool_keee *edata)5729{5730 struct i40e_netdev_priv *np = netdev_priv(netdev);5731 struct i40e_aq_get_phy_abilities_resp abilities;5732 struct i40e_aq_set_phy_config config;5733 struct i40e_vsi *vsi = np->vsi;5734 struct i40e_pf *pf = vsi->back;5735 struct i40e_hw *hw = &pf->hw;5736 __le16 eee_capability;5737 int status;5738 5739 /* Deny parameters we don't support */5740 if (i40e_is_eee_param_supported(netdev, edata))5741 return -EOPNOTSUPP;5742 5743 /* Get initial PHY capabilities */5744 status = i40e_aq_get_phy_capabilities(hw, false, true, &abilities,5745 NULL);5746 if (status)5747 return -EAGAIN;5748 5749 /* Check whether NIC configuration is compatible with Energy Efficient5750 * Ethernet (EEE) mode.5751 */5752 if (abilities.eee_capability == 0)5753 return -EOPNOTSUPP;5754 5755 /* Cache initial EEE capability */5756 eee_capability = abilities.eee_capability;5757 5758 /* Get current PHY configuration */5759 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,5760 NULL);5761 if (status)5762 return -EAGAIN;5763 5764 /* Cache current PHY configuration */5765 config.phy_type = abilities.phy_type;5766 config.phy_type_ext = abilities.phy_type_ext;5767 config.link_speed = abilities.link_speed;5768 config.abilities = abilities.abilities |5769 I40E_AQ_PHY_ENABLE_ATOMIC_LINK;5770 config.eeer = abilities.eeer_val;5771 config.low_power_ctrl = abilities.d3_lpan;5772 config.fec_config = abilities.fec_cfg_curr_mod_ext_info &5773 I40E_AQ_PHY_FEC_CONFIG_MASK;5774 5775 /* Set desired EEE state */5776 if (edata->eee_enabled) {5777 config.eee_capability = eee_capability;5778 config.eeer |= cpu_to_le32(I40E_PRTPM_EEER_TX_LPI_EN_MASK);5779 } else {5780 config.eee_capability = 0;5781 config.eeer &= cpu_to_le32(~I40E_PRTPM_EEER_TX_LPI_EN_MASK);5782 }5783 5784 /* Apply modified PHY configuration */5785 status = i40e_aq_set_phy_config(hw, &config, NULL);5786 if (status)5787 return -EAGAIN;5788 5789 return 0;5790}5791 5792static const struct ethtool_ops i40e_ethtool_recovery_mode_ops = {5793 .get_drvinfo = i40e_get_drvinfo,5794 .set_eeprom = i40e_set_eeprom,5795 .get_eeprom_len = i40e_get_eeprom_len,5796 .get_eeprom = i40e_get_eeprom,5797};5798 5799static const struct ethtool_ops i40e_ethtool_ops = {5800 .supported_coalesce_params = ETHTOOL_COALESCE_USECS |5801 ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ |5802 ETHTOOL_COALESCE_USE_ADAPTIVE |5803 ETHTOOL_COALESCE_RX_USECS_HIGH |5804 ETHTOOL_COALESCE_TX_USECS_HIGH,5805 .get_drvinfo = i40e_get_drvinfo,5806 .get_regs_len = i40e_get_regs_len,5807 .get_regs = i40e_get_regs,5808 .nway_reset = i40e_nway_reset,5809 .get_link = ethtool_op_get_link,5810 .get_wol = i40e_get_wol,5811 .set_wol = i40e_set_wol,5812 .set_eeprom = i40e_set_eeprom,5813 .get_eeprom_len = i40e_get_eeprom_len,5814 .get_eeprom = i40e_get_eeprom,5815 .get_ringparam = i40e_get_ringparam,5816 .set_ringparam = i40e_set_ringparam,5817 .get_pauseparam = i40e_get_pauseparam,5818 .set_pauseparam = i40e_set_pauseparam,5819 .get_msglevel = i40e_get_msglevel,5820 .set_msglevel = i40e_set_msglevel,5821 .get_rxnfc = i40e_get_rxnfc,5822 .set_rxnfc = i40e_set_rxnfc,5823 .self_test = i40e_diag_test,5824 .get_strings = i40e_get_strings,5825 .get_eee = i40e_get_eee,5826 .set_eee = i40e_set_eee,5827 .set_phys_id = i40e_set_phys_id,5828 .get_sset_count = i40e_get_sset_count,5829 .get_ethtool_stats = i40e_get_ethtool_stats,5830 .get_coalesce = i40e_get_coalesce,5831 .set_coalesce = i40e_set_coalesce,5832 .get_rxfh_key_size = i40e_get_rxfh_key_size,5833 .get_rxfh_indir_size = i40e_get_rxfh_indir_size,5834 .get_rxfh = i40e_get_rxfh,5835 .set_rxfh = i40e_set_rxfh,5836 .get_channels = i40e_get_channels,5837 .set_channels = i40e_set_channels,5838 .get_module_info = i40e_get_module_info,5839 .get_module_eeprom = i40e_get_module_eeprom,5840 .get_ts_info = i40e_get_ts_info,5841 .get_priv_flags = i40e_get_priv_flags,5842 .set_priv_flags = i40e_set_priv_flags,5843 .get_per_queue_coalesce = i40e_get_per_queue_coalesce,5844 .set_per_queue_coalesce = i40e_set_per_queue_coalesce,5845 .get_link_ksettings = i40e_get_link_ksettings,5846 .set_link_ksettings = i40e_set_link_ksettings,5847 .get_fecparam = i40e_get_fec_param,5848 .set_fecparam = i40e_set_fec_param,5849 .flash_device = i40e_ddp_flash,5850};5851 5852void i40e_set_ethtool_ops(struct net_device *netdev)5853{5854 struct i40e_netdev_priv *np = netdev_priv(netdev);5855 struct i40e_pf *pf = np->vsi->back;5856 5857 if (!test_bit(__I40E_RECOVERY_MODE, pf->state))5858 netdev->ethtool_ops = &i40e_ethtool_ops;5859 else5860 netdev->ethtool_ops = &i40e_ethtool_recovery_mode_ops;5861}5862