drivers/net/ethernet/intel/i40e/i40e_ethtool.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* Copyright(c) 2013 - 2018 Intel Corporation. */
   3
   4 /* ethtool support for i40e */
   5
   6 #include "i40e.h"
   7 #include "i40e_diag.h"
   8 #include "i40e_txrx_common.h"
   9
  10 /* ethtool statistics helpers */
  11
  12 /**
  13  * struct i40e_stats - definition for an ethtool statistic
  14  * @stat_string: statistic name to display in ethtool -S output
  15  * @sizeof_stat: the sizeof() the stat, must be no greater than sizeof(u64)
  16  * @stat_offset: offsetof() the stat from a base pointer
  17  *
  18  * This structure defines a statistic to be added to the ethtool stats buffer.
  19  * It defines a statistic as offset from a common base pointer. Stats should
  20  * be defined in constant arrays using the I40E_STAT macro, with every element
  21  * of the array using the same _type for calculating the sizeof_stat and
  22  * stat_offset.
  23  *
  24  * The @sizeof_stat is expected to be sizeof(u8), sizeof(u16), sizeof(u32) or
  25  * sizeof(u64). Other sizes are not expected and will produce a WARN_ONCE from
  26  * the i40e_add_ethtool_stat() helper function.
  27  *
  28  * The @stat_string is interpreted as a format string, allowing formatted
  29  * values to be inserted while looping over multiple structures for a given
  30  * statistics array. Thus, every statistic string in an array should have the
  31  * same type and number of format specifiers, to be formatted by variadic
  32  * arguments to the i40e_add_stat_string() helper function.
  33  **/
  34 struct i40e_stats {
  35         char stat_string[ETH_GSTRING_LEN];
  36         int sizeof_stat;
  37         int stat_offset;
  38 };
  39
  40 /* Helper macro to define an i40e_stat structure with proper size and type.
  41  * Use this when defining constant statistics arrays. Note that @_type expects
  42  * only a type name and is used multiple times.
  43  */
  44 #define I40E_STAT(_type, _name, _stat) { \
  45         .stat_string = _name, \
  46         .sizeof_stat = sizeof_field(_type, _stat), \
  47         .stat_offset = offsetof(_type, _stat) \
  48 }
  49
  50 /* Helper macro for defining some statistics directly copied from the netdev
  51  * stats structure.
  52  */
  53 #define I40E_NETDEV_STAT(_net_stat) \
  54         I40E_STAT(struct rtnl_link_stats64, #_net_stat, _net_stat)
  55
  56 /* Helper macro for defining some statistics related to queues */
  57 #define I40E_QUEUE_STAT(_name, _stat) \
  58         I40E_STAT(struct i40e_ring, _name, _stat)
  59
  60 /* Stats associated with a Tx or Rx ring */
  61 static const struct i40e_stats i40e_gstrings_queue_stats[] = {
  62         I40E_QUEUE_STAT("%s-%u.packets", stats.packets),
  63         I40E_QUEUE_STAT("%s-%u.bytes", stats.bytes),
  64 };
  65
  66 /**
  67  * i40e_add_one_ethtool_stat - copy the stat into the supplied buffer
  68  * @data: location to store the stat value
  69  * @pointer: basis for where to copy from
  70  * @stat: the stat definition
  71  *
  72  * Copies the stat data defined by the pointer and stat structure pair into
  73  * the memory supplied as data. Used to implement i40e_add_ethtool_stats and
  74  * i40e_add_queue_stats. If the pointer is null, data will be zero'd.
  75  */
  76 static void
  77 i40e_add_one_ethtool_stat(u64 *data, void *pointer,
  78                           const struct i40e_stats *stat)
  79 {
  80         char *p;
  81
  82         if (!pointer) {
  83                 /* ensure that the ethtool data buffer is zero'd for any stats
  84                  * which don't have a valid pointer.
  85                  */
  86                 *data = 0;
  87                 return;
  88         }
  89
  90         p = (char *)pointer + stat->stat_offset;
  91         switch (stat->sizeof_stat) {
  92         case sizeof(u64):
  93                 *data = *((u64 *)p);
  94                 break;
  95         case sizeof(u32):
  96                 *data = *((u32 *)p);
  97                 break;
  98         case sizeof(u16):
  99                 *data = *((u16 *)p);
 100                 break;
 101         case sizeof(u8):
 102                 *data = *((u8 *)p);
 103                 break;
 104         default:
 105                 WARN_ONCE(1, "unexpected stat size for %s",
 106                           stat->stat_string);
 107                 *data = 0;
 108         }
 109 }
 110
 111 /**
 112  * __i40e_add_ethtool_stats - copy stats into the ethtool supplied buffer
 113  * @data: ethtool stats buffer
 114  * @pointer: location to copy stats from
 115  * @stats: array of stats to copy
 116  * @size: the size of the stats definition
 117  *
 118  * Copy the stats defined by the stats array using the pointer as a base into
 119  * the data buffer supplied by ethtool. Updates the data pointer to point to
 120  * the next empty location for successive calls to __i40e_add_ethtool_stats.
 121  * If pointer is null, set the data values to zero and update the pointer to
 122  * skip these stats.
 123  **/
 124 static void
 125 __i40e_add_ethtool_stats(u64 **data, void *pointer,
 126                          const struct i40e_stats stats[],
 127                          const unsigned int size)
 128 {
 129         unsigned int i;
 130
 131         for (i = 0; i < size; i++)
 132                 i40e_add_one_ethtool_stat((*data)++, pointer, &stats[i]);
 133 }
 134
 135 /**
 136  * i40e_add_ethtool_stats - copy stats into ethtool supplied buffer
 137  * @data: ethtool stats buffer
 138  * @pointer: location where stats are stored
 139  * @stats: static const array of stat definitions
 140  *
 141  * Macro to ease the use of __i40e_add_ethtool_stats by taking a static
 142  * constant stats array and passing the ARRAY_SIZE(). This avoids typos by
 143  * ensuring that we pass the size associated with the given stats array.
 144  *
 145  * The parameter @stats is evaluated twice, so parameters with side effects
 146  * should be avoided.
 147  **/
 148 #define i40e_add_ethtool_stats(data, pointer, stats) \
 149         __i40e_add_ethtool_stats(data, pointer, stats, ARRAY_SIZE(stats))
 150
 151 /**
 152  * i40e_add_queue_stats - copy queue statistics into supplied buffer
 153  * @data: ethtool stats buffer
 154  * @ring: the ring to copy
 155  *
 156  * Queue statistics must be copied while protected by
 157  * u64_stats_fetch_begin, so we can't directly use i40e_add_ethtool_stats.
 158  * Assumes that queue stats are defined in i40e_gstrings_queue_stats. If the
 159  * ring pointer is null, zero out the queue stat values and update the data
 160  * pointer. Otherwise safely copy the stats from the ring into the supplied
 161  * buffer and update the data pointer when finished.
 162  *
 163  * This function expects to be called while under rcu_read_lock().
 164  **/
 165 static void
 166 i40e_add_queue_stats(u64 **data, struct i40e_ring *ring)
 167 {
 168         const unsigned int size = ARRAY_SIZE(i40e_gstrings_queue_stats);
 169         const struct i40e_stats *stats = i40e_gstrings_queue_stats;
 170         unsigned int start;
 171         unsigned int i;
 172
 173         /* To avoid invalid statistics values, ensure that we keep retrying
 174          * the copy until we get a consistent value according to
 175          * u64_stats_fetch_retry. But first, make sure our ring is
 176          * non-null before attempting to access its syncp.
 177          */
 178         do {
 179                 start = !ring ? 0 : u64_stats_fetch_begin(&ring->syncp);
 180                 for (i = 0; i < size; i++) {
 181                         i40e_add_one_ethtool_stat(&(*data)[i], ring,
 182                                                   &stats[i]);
 183                 }
 184         } while (ring && u64_stats_fetch_retry(&ring->syncp, start));
 185
 186         /* Once we successfully copy the stats in, update the data pointer */
 187         *data += size;
 188 }
 189
 190 /**
 191  * __i40e_add_stat_strings - copy stat strings into ethtool buffer
 192  * @p: ethtool supplied buffer
 193  * @stats: stat definitions array
 194  * @size: size of the stats array
 195  *
 196  * Format and copy the strings described by stats into the buffer pointed at
 197  * by p.
 198  **/
 199 static void __i40e_add_stat_strings(u8 **p, const struct i40e_stats stats[],
 200                                     const unsigned int size, ...)
 201 {
 202         unsigned int i;
 203
 204         for (i = 0; i < size; i++) {
 205                 va_list args;
 206
 207                 va_start(args, size);
 208                 vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args);
 209                 *p += ETH_GSTRING_LEN;
 210                 va_end(args);
 211         }
 212 }
 213
 214 /**
 215  * i40e_add_stat_strings - copy stat strings into ethtool buffer
 216  * @p: ethtool supplied buffer
 217  * @stats: stat definitions array
 218  *
 219  * Format and copy the strings described by the const static stats value into
 220  * the buffer pointed at by p.
 221  *
 222  * The parameter @stats is evaluated twice, so parameters with side effects
 223  * should be avoided. Additionally, stats must be an array such that
 224  * ARRAY_SIZE can be called on it.
 225  **/
 226 #define i40e_add_stat_strings(p, stats, ...) \
 227         __i40e_add_stat_strings(p, stats, ARRAY_SIZE(stats), ## __VA_ARGS__)
 228
 229 #define I40E_PF_STAT(_name, _stat) \
 230         I40E_STAT(struct i40e_pf, _name, _stat)
 231 #define I40E_VSI_STAT(_name, _stat) \
 232         I40E_STAT(struct i40e_vsi, _name, _stat)
 233 #define I40E_VEB_STAT(_name, _stat) \
 234         I40E_STAT(struct i40e_veb, _name, _stat)
 235 #define I40E_VEB_TC_STAT(_name, _stat) \
 236         I40E_STAT(struct i40e_cp_veb_tc_stats, _name, _stat)
 237 #define I40E_PFC_STAT(_name, _stat) \
 238         I40E_STAT(struct i40e_pfc_stats, _name, _stat)
 239
 240 static const struct i40e_stats i40e_gstrings_net_stats[] = {
 241         I40E_NETDEV_STAT(rx_packets),
 242         I40E_NETDEV_STAT(tx_packets),
 243         I40E_NETDEV_STAT(rx_bytes),
 244         I40E_NETDEV_STAT(tx_bytes),
 245         I40E_NETDEV_STAT(rx_errors),
 246         I40E_NETDEV_STAT(tx_errors),
 247         I40E_NETDEV_STAT(rx_dropped),
 248         I40E_NETDEV_STAT(tx_dropped),
 249         I40E_NETDEV_STAT(collisions),
 250         I40E_NETDEV_STAT(rx_length_errors),
 251         I40E_NETDEV_STAT(rx_crc_errors),
 252 };
 253
 254 static const struct i40e_stats i40e_gstrings_veb_stats[] = {
 255         I40E_VEB_STAT("veb.rx_bytes", stats.rx_bytes),
 256         I40E_VEB_STAT("veb.tx_bytes", stats.tx_bytes),
 257         I40E_VEB_STAT("veb.rx_unicast", stats.rx_unicast),
 258         I40E_VEB_STAT("veb.tx_unicast", stats.tx_unicast),
 259         I40E_VEB_STAT("veb.rx_multicast", stats.rx_multicast),
 260         I40E_VEB_STAT("veb.tx_multicast", stats.tx_multicast),
 261         I40E_VEB_STAT("veb.rx_broadcast", stats.rx_broadcast),
 262         I40E_VEB_STAT("veb.tx_broadcast", stats.tx_broadcast),
 263         I40E_VEB_STAT("veb.rx_discards", stats.rx_discards),
 264         I40E_VEB_STAT("veb.tx_discards", stats.tx_discards),
 265         I40E_VEB_STAT("veb.tx_errors", stats.tx_errors),
 266         I40E_VEB_STAT("veb.rx_unknown_protocol", stats.rx_unknown_protocol),
 267 };
 268
 269 struct i40e_cp_veb_tc_stats {
 270         u64 tc_rx_packets;
 271         u64 tc_rx_bytes;
 272         u64 tc_tx_packets;
 273         u64 tc_tx_bytes;
 274 };
 275
 276 static const struct i40e_stats i40e_gstrings_veb_tc_stats[] = {
 277         I40E_VEB_TC_STAT("veb.tc_%u_tx_packets", tc_tx_packets),
 278         I40E_VEB_TC_STAT("veb.tc_%u_tx_bytes", tc_tx_bytes),
 279         I40E_VEB_TC_STAT("veb.tc_%u_rx_packets", tc_rx_packets),
 280         I40E_VEB_TC_STAT("veb.tc_%u_rx_bytes", tc_rx_bytes),
 281 };
 282
 283 static const struct i40e_stats i40e_gstrings_misc_stats[] = {
 284         I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast),
 285         I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast),
 286         I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast),
 287         I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast),
 288         I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast),
 289         I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast),
 290         I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol),
 291         I40E_VSI_STAT("tx_linearize", tx_linearize),
 292         I40E_VSI_STAT("tx_force_wb", tx_force_wb),
 293         I40E_VSI_STAT("tx_busy", tx_busy),
 294         I40E_VSI_STAT("tx_stopped", tx_stopped),
 295         I40E_VSI_STAT("rx_alloc_fail", rx_buf_failed),
 296         I40E_VSI_STAT("rx_pg_alloc_fail", rx_page_failed),
 297         I40E_VSI_STAT("rx_cache_reuse", rx_page_reuse),
 298         I40E_VSI_STAT("rx_cache_alloc", rx_page_alloc),
 299         I40E_VSI_STAT("rx_cache_waive", rx_page_waive),
 300         I40E_VSI_STAT("rx_cache_busy", rx_page_busy),
 301         I40E_VSI_STAT("tx_restart", tx_restart),
 302 };
 303
 304 /* These PF_STATs might look like duplicates of some NETDEV_STATs,
 305  * but they are separate.  This device supports Virtualization, and
 306  * as such might have several netdevs supporting VMDq and FCoE going
 307  * through a single port.  The NETDEV_STATs are for individual netdevs
 308  * seen at the top of the stack, and the PF_STATs are for the physical
 309  * function at the bottom of the stack hosting those netdevs.
 310  *
 311  * The PF_STATs are appended to the netdev stats only when ethtool -S
 312  * is queried on the base PF netdev, not on the VMDq or FCoE netdev.
 313  */
 314 static const struct i40e_stats i40e_gstrings_stats[] = {
 315         I40E_PF_STAT("port.rx_bytes", stats.eth.rx_bytes),
 316         I40E_PF_STAT("port.tx_bytes", stats.eth.tx_bytes),
 317         I40E_PF_STAT("port.rx_unicast", stats.eth.rx_unicast),
 318         I40E_PF_STAT("port.tx_unicast", stats.eth.tx_unicast),
 319         I40E_PF_STAT("port.rx_multicast", stats.eth.rx_multicast),
 320         I40E_PF_STAT("port.tx_multicast", stats.eth.tx_multicast),
 321         I40E_PF_STAT("port.rx_broadcast", stats.eth.rx_broadcast),
 322         I40E_PF_STAT("port.tx_broadcast", stats.eth.tx_broadcast),
 323         I40E_PF_STAT("port.tx_errors", stats.eth.tx_errors),
 324         I40E_PF_STAT("port.rx_dropped", stats.eth.rx_discards),
 325         I40E_PF_STAT("port.tx_dropped_link_down", stats.tx_dropped_link_down),
 326         I40E_PF_STAT("port.rx_crc_errors", stats.crc_errors),
 327         I40E_PF_STAT("port.illegal_bytes", stats.illegal_bytes),
 328         I40E_PF_STAT("port.mac_local_faults", stats.mac_local_faults),
 329         I40E_PF_STAT("port.mac_remote_faults", stats.mac_remote_faults),
 330         I40E_PF_STAT("port.tx_timeout", tx_timeout_count),
 331         I40E_PF_STAT("port.rx_csum_bad", hw_csum_rx_error),
 332         I40E_PF_STAT("port.rx_length_errors", stats.rx_length_errors),
 333         I40E_PF_STAT("port.link_xon_rx", stats.link_xon_rx),
 334         I40E_PF_STAT("port.link_xoff_rx", stats.link_xoff_rx),
 335         I40E_PF_STAT("port.link_xon_tx", stats.link_xon_tx),
 336         I40E_PF_STAT("port.link_xoff_tx", stats.link_xoff_tx),
 337         I40E_PF_STAT("port.rx_size_64", stats.rx_size_64),
 338         I40E_PF_STAT("port.rx_size_127", stats.rx_size_127),
 339         I40E_PF_STAT("port.rx_size_255", stats.rx_size_255),
 340         I40E_PF_STAT("port.rx_size_511", stats.rx_size_511),
 341         I40E_PF_STAT("port.rx_size_1023", stats.rx_size_1023),
 342         I40E_PF_STAT("port.rx_size_1522", stats.rx_size_1522),
 343         I40E_PF_STAT("port.rx_size_big", stats.rx_size_big),
 344         I40E_PF_STAT("port.tx_size_64", stats.tx_size_64),
 345         I40E_PF_STAT("port.tx_size_127", stats.tx_size_127),
 346         I40E_PF_STAT("port.tx_size_255", stats.tx_size_255),
 347         I40E_PF_STAT("port.tx_size_511", stats.tx_size_511),
 348         I40E_PF_STAT("port.tx_size_1023", stats.tx_size_1023),
 349         I40E_PF_STAT("port.tx_size_1522", stats.tx_size_1522),
 350         I40E_PF_STAT("port.tx_size_big", stats.tx_size_big),
 351         I40E_PF_STAT("port.rx_undersize", stats.rx_undersize),
 352         I40E_PF_STAT("port.rx_fragments", stats.rx_fragments),
 353         I40E_PF_STAT("port.rx_oversize", stats.rx_oversize),
 354         I40E_PF_STAT("port.rx_jabber", stats.rx_jabber),
 355         I40E_PF_STAT("port.VF_admin_queue_requests", vf_aq_requests),
 356         I40E_PF_STAT("port.arq_overflows", arq_overflows),
 357         I40E_PF_STAT("port.tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
 358         I40E_PF_STAT("port.rx_hwtstamp_cleared", rx_hwtstamp_cleared),
 359         I40E_PF_STAT("port.tx_hwtstamp_skipped", tx_hwtstamp_skipped),
 360         I40E_PF_STAT("port.fdir_flush_cnt", fd_flush_cnt),
 361         I40E_PF_STAT("port.fdir_atr_match", stats.fd_atr_match),
 362         I40E_PF_STAT("port.fdir_atr_tunnel_match", stats.fd_atr_tunnel_match),
 363         I40E_PF_STAT("port.fdir_atr_status", stats.fd_atr_status),
 364         I40E_PF_STAT("port.fdir_sb_match", stats.fd_sb_match),
 365         I40E_PF_STAT("port.fdir_sb_status", stats.fd_sb_status),
 366
 367         /* LPI stats */
 368         I40E_PF_STAT("port.tx_lpi_status", stats.tx_lpi_status),
 369         I40E_PF_STAT("port.rx_lpi_status", stats.rx_lpi_status),
 370         I40E_PF_STAT("port.tx_lpi_count", stats.tx_lpi_count),
 371         I40E_PF_STAT("port.rx_lpi_count", stats.rx_lpi_count),
 372 };
 373
 374 struct i40e_pfc_stats {
 375         u64 priority_xon_rx;
 376         u64 priority_xoff_rx;
 377         u64 priority_xon_tx;
 378         u64 priority_xoff_tx;
 379         u64 priority_xon_2_xoff;
 380 };
 381
 382 static const struct i40e_stats i40e_gstrings_pfc_stats[] = {
 383         I40E_PFC_STAT("port.tx_priority_%u_xon_tx", priority_xon_tx),
 384         I40E_PFC_STAT("port.tx_priority_%u_xoff_tx", priority_xoff_tx),
 385         I40E_PFC_STAT("port.rx_priority_%u_xon_rx", priority_xon_rx),
 386         I40E_PFC_STAT("port.rx_priority_%u_xoff_rx", priority_xoff_rx),
 387         I40E_PFC_STAT("port.rx_priority_%u_xon_2_xoff", priority_xon_2_xoff),
 388 };
 389
 390 #define I40E_NETDEV_STATS_LEN   ARRAY_SIZE(i40e_gstrings_net_stats)
 391
 392 #define I40E_MISC_STATS_LEN     ARRAY_SIZE(i40e_gstrings_misc_stats)
 393
 394 #define I40E_VSI_STATS_LEN      (I40E_NETDEV_STATS_LEN + I40E_MISC_STATS_LEN)
 395
 396 #define I40E_PFC_STATS_LEN      (ARRAY_SIZE(i40e_gstrings_pfc_stats) * \
 397                                  I40E_MAX_USER_PRIORITY)
 398
 399 #define I40E_VEB_STATS_LEN      (ARRAY_SIZE(i40e_gstrings_veb_stats) + \
 400                                  (ARRAY_SIZE(i40e_gstrings_veb_tc_stats) * \
 401                                   I40E_MAX_TRAFFIC_CLASS))
 402
 403 #define I40E_GLOBAL_STATS_LEN   ARRAY_SIZE(i40e_gstrings_stats)
 404
 405 #define I40E_PF_STATS_LEN       (I40E_GLOBAL_STATS_LEN + \
 406                                  I40E_PFC_STATS_LEN + \
 407                                  I40E_VEB_STATS_LEN + \
 408                                  I40E_VSI_STATS_LEN)
 409
 410 /* Length of stats for a single queue */
 411 #define I40E_QUEUE_STATS_LEN    ARRAY_SIZE(i40e_gstrings_queue_stats)
 412
 413 enum i40e_ethtool_test_id {
 414         I40E_ETH_TEST_REG = 0,
 415         I40E_ETH_TEST_EEPROM,
 416         I40E_ETH_TEST_INTR,
 417         I40E_ETH_TEST_LINK,
 418 };
 419
 420 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = {
 421         "Register test  (offline)",
 422         "Eeprom test    (offline)",
 423         "Interrupt test (offline)",
 424         "Link test   (on/offline)"
 425 };
 426
 427 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN)
 428
 429 struct i40e_priv_flags {
 430         char flag_string[ETH_GSTRING_LEN];
 431         u64 flag;
 432         bool read_only;
 433 };
 434
 435 #define I40E_PRIV_FLAG(_name, _flag, _read_only) { \
 436         .flag_string = _name, \
 437         .flag = _flag, \
 438         .read_only = _read_only, \
 439 }
 440
 441 static const struct i40e_priv_flags i40e_gstrings_priv_flags[] = {
 442         /* NOTE: MFP setting cannot be changed */
 443         I40E_PRIV_FLAG("MFP", I40E_FLAG_MFP_ENABLED, 1),
 444         I40E_PRIV_FLAG("total-port-shutdown",
 445                        I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED, 1),
 446         I40E_PRIV_FLAG("LinkPolling", I40E_FLAG_LINK_POLLING_ENABLED, 0),
 447         I40E_PRIV_FLAG("flow-director-atr", I40E_FLAG_FD_ATR_ENABLED, 0),
 448         I40E_PRIV_FLAG("veb-stats", I40E_FLAG_VEB_STATS_ENABLED, 0),
 449         I40E_PRIV_FLAG("hw-atr-eviction", I40E_FLAG_HW_ATR_EVICT_ENABLED, 0),
 450         I40E_PRIV_FLAG("link-down-on-close",
 451                        I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED, 0),
 452         I40E_PRIV_FLAG("legacy-rx", I40E_FLAG_LEGACY_RX, 0),
 453         I40E_PRIV_FLAG("disable-source-pruning",
 454                        I40E_FLAG_SOURCE_PRUNING_DISABLED, 0),
 455         I40E_PRIV_FLAG("disable-fw-lldp", I40E_FLAG_DISABLE_FW_LLDP, 0),
 456         I40E_PRIV_FLAG("rs-fec", I40E_FLAG_RS_FEC, 0),
 457         I40E_PRIV_FLAG("base-r-fec", I40E_FLAG_BASE_R_FEC, 0),
 458         I40E_PRIV_FLAG("vf-vlan-pruning",
 459                        I40E_FLAG_VF_VLAN_PRUNING, 0),
 460 };
 461
 462 #define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gstrings_priv_flags)
 463
 464 /* Private flags with a global effect, restricted to PF 0 */
 465 static const struct i40e_priv_flags i40e_gl_gstrings_priv_flags[] = {
 466         I40E_PRIV_FLAG("vf-true-promisc-support",
 467                        I40E_FLAG_TRUE_PROMISC_SUPPORT, 0),
 468 };
 469
 470 #define I40E_GL_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gl_gstrings_priv_flags)
 471
 472 /**
 473  * i40e_partition_setting_complaint - generic complaint for MFP restriction
 474  * @pf: the PF struct
 475  **/
 476 static void i40e_partition_setting_complaint(struct i40e_pf *pf)
 477 {
 478         dev_info(&pf->pdev->dev,
 479                  "The link settings are allowed to be changed only from the first partition of a given port. Please switch to the first partition in order to change the setting.\n");
 480 }
 481
 482 /**
 483  * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes
 484  * @pf: PF struct with phy_types
 485  * @ks: ethtool link ksettings struct to fill out
 486  *
 487  **/
 488 static void i40e_phy_type_to_ethtool(struct i40e_pf *pf,
 489                                      struct ethtool_link_ksettings *ks)
 490 {
 491         struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info;
 492         u64 phy_types = pf->hw.phy.phy_types;
 493
 494         ethtool_link_ksettings_zero_link_mode(ks, supported);
 495         ethtool_link_ksettings_zero_link_mode(ks, advertising);
 496
 497         if (phy_types & I40E_CAP_PHY_TYPE_SGMII) {
 498                 ethtool_link_ksettings_add_link_mode(ks, supported,
 499                                                      1000baseT_Full);
 500                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 501                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 502                                                              1000baseT_Full);
 503                 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) {
 504                         ethtool_link_ksettings_add_link_mode(ks, supported,
 505                                                              100baseT_Full);
 506                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 507                                                              100baseT_Full);
 508                 }
 509         }
 510         if (phy_types & I40E_CAP_PHY_TYPE_XAUI ||
 511             phy_types & I40E_CAP_PHY_TYPE_XFI ||
 512             phy_types & I40E_CAP_PHY_TYPE_SFI ||
 513             phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU ||
 514             phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC) {
 515                 ethtool_link_ksettings_add_link_mode(ks, supported,
 516                                                      10000baseT_Full);
 517                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 518                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 519                                                              10000baseT_Full);
 520         }
 521         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_T) {
 522                 ethtool_link_ksettings_add_link_mode(ks, supported,
 523                                                      10000baseT_Full);
 524                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 525                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 526                                                              10000baseT_Full);
 527         }
 528         if (phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T) {
 529                 ethtool_link_ksettings_add_link_mode(ks, supported,
 530                                                      2500baseT_Full);
 531                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB)
 532                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 533                                                              2500baseT_Full);
 534         }
 535         if (phy_types & I40E_CAP_PHY_TYPE_5GBASE_T) {
 536                 ethtool_link_ksettings_add_link_mode(ks, supported,
 537                                                      5000baseT_Full);
 538                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB)
 539                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 540                                                              5000baseT_Full);
 541         }
 542         if (phy_types & I40E_CAP_PHY_TYPE_XLAUI ||
 543             phy_types & I40E_CAP_PHY_TYPE_XLPPI ||
 544             phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC)
 545                 ethtool_link_ksettings_add_link_mode(ks, supported,
 546                                                      40000baseCR4_Full);
 547         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
 548             phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) {
 549                 ethtool_link_ksettings_add_link_mode(ks, supported,
 550                                                      40000baseCR4_Full);
 551                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB)
 552                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 553                                                              40000baseCR4_Full);
 554         }
 555         if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) {
 556                 ethtool_link_ksettings_add_link_mode(ks, supported,
 557                                                      100baseT_Full);
 558                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
 559                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 560                                                              100baseT_Full);
 561         }
 562         if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T) {
 563                 ethtool_link_ksettings_add_link_mode(ks, supported,
 564                                                      1000baseT_Full);
 565                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 566                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 567                                                              1000baseT_Full);
 568         }
 569         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4) {
 570                 ethtool_link_ksettings_add_link_mode(ks, supported,
 571                                                      40000baseSR4_Full);
 572                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 573                                                      40000baseSR4_Full);
 574         }
 575         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4) {
 576                 ethtool_link_ksettings_add_link_mode(ks, supported,
 577                                                      40000baseLR4_Full);
 578                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 579                                                      40000baseLR4_Full);
 580         }
 581         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) {
 582                 ethtool_link_ksettings_add_link_mode(ks, supported,
 583                                                      40000baseKR4_Full);
 584                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 585                                                      40000baseKR4_Full);
 586         }
 587         if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) {
 588                 ethtool_link_ksettings_add_link_mode(ks, supported,
 589                                                      20000baseKR2_Full);
 590                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB)
 591                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 592                                                              20000baseKR2_Full);
 593         }
 594         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) {
 595                 ethtool_link_ksettings_add_link_mode(ks, supported,
 596                                                      10000baseKX4_Full);
 597                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 598                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 599                                                              10000baseKX4_Full);
 600         }
 601         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR &&
 602             !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) {
 603                 ethtool_link_ksettings_add_link_mode(ks, supported,
 604                                                      10000baseKR_Full);
 605                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 606                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 607                                                              10000baseKR_Full);
 608         }
 609         if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX &&
 610             !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) {
 611                 ethtool_link_ksettings_add_link_mode(ks, supported,
 612                                                      1000baseKX_Full);
 613                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 614                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 615                                                              1000baseKX_Full);
 616         }
 617         /* need to add 25G PHY types */
 618         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR) {
 619                 ethtool_link_ksettings_add_link_mode(ks, supported,
 620                                                      25000baseKR_Full);
 621                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 622                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 623                                                              25000baseKR_Full);
 624         }
 625         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR) {
 626                 ethtool_link_ksettings_add_link_mode(ks, supported,
 627                                                      25000baseCR_Full);
 628                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 629                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 630                                                              25000baseCR_Full);
 631         }
 632         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
 633             phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR) {
 634                 ethtool_link_ksettings_add_link_mode(ks, supported,
 635                                                      25000baseSR_Full);
 636                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 637                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 638                                                              25000baseSR_Full);
 639         }
 640         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC ||
 641             phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) {
 642                 ethtool_link_ksettings_add_link_mode(ks, supported,
 643                                                      25000baseCR_Full);
 644                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 645                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 646                                                              25000baseCR_Full);
 647         }
 648         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR ||
 649             phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR ||
 650             phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
 651             phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR ||
 652             phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC ||
 653             phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) {
 654                 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE);
 655                 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);
 656                 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);
 657                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) {
 658                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 659                                                              FEC_NONE);
 660                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 661                                                              FEC_RS);
 662                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 663                                                              FEC_BASER);
 664                 }
 665         }
 666         /* need to add new 10G PHY types */
 667         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
 668             phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU) {
 669                 ethtool_link_ksettings_add_link_mode(ks, supported,
 670                                                      10000baseCR_Full);
 671                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 672                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 673                                                              10000baseCR_Full);
 674         }
 675         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR) {
 676                 ethtool_link_ksettings_add_link_mode(ks, supported,
 677                                                      10000baseSR_Full);
 678                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 679                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 680                                                              10000baseSR_Full);
 681         }
 682         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) {
 683                 ethtool_link_ksettings_add_link_mode(ks, supported,
 684                                                      10000baseLR_Full);
 685                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 686                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 687                                                              10000baseLR_Full);
 688         }
 689         if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
 690             phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
 691             phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) {
 692                 ethtool_link_ksettings_add_link_mode(ks, supported,
 693                                                      1000baseX_Full);
 694                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 695                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 696                                                              1000baseX_Full);
 697         }
 698         /* Autoneg PHY types */
 699         if (phy_types & I40E_CAP_PHY_TYPE_SGMII ||
 700             phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4 ||
 701             phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
 702             phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4 ||
 703             phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
 704             phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR ||
 705             phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR ||
 706             phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR ||
 707             phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2 ||
 708             phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR ||
 709             phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR ||
 710             phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4 ||
 711             phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR ||
 712             phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU ||
 713             phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
 714             phy_types & I40E_CAP_PHY_TYPE_10GBASE_T ||
 715             phy_types & I40E_CAP_PHY_TYPE_5GBASE_T ||
 716             phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T ||
 717             phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL ||
 718             phy_types & I40E_CAP_PHY_TYPE_1000BASE_T ||
 719             phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
 720             phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
 721             phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX ||
 722             phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) {
 723                 ethtool_link_ksettings_add_link_mode(ks, supported,
 724                                                      Autoneg);
 725                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 726                                                      Autoneg);
 727         }
 728 }
 729
 730 /**
 731  * i40e_get_settings_link_up_fec - Get the FEC mode encoding from mask
 732  * @req_fec_info: mask request FEC info
 733  * @ks: ethtool ksettings to fill in
 734  **/
 735 static void i40e_get_settings_link_up_fec(u8 req_fec_info,
 736                                           struct ethtool_link_ksettings *ks)
 737 {
 738         ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE);
 739         ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);
 740         ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);
 741
 742         if ((I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) &&
 743             (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info)) {
 744                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 745                                                      FEC_NONE);
 746                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 747                                                      FEC_BASER);
 748                 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);
 749         } else if (I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) {
 750                 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);
 751         } else if (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info) {
 752                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 753                                                      FEC_BASER);
 754         } else {
 755                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 756                                                      FEC_NONE);
 757         }
 758 }
 759
 760 /**
 761  * i40e_get_settings_link_up - Get the Link settings for when link is up
 762  * @hw: hw structure
 763  * @ks: ethtool ksettings to fill in
 764  * @netdev: network interface device structure
 765  * @pf: pointer to physical function struct
 766  **/
 767 static void i40e_get_settings_link_up(struct i40e_hw *hw,
 768                                       struct ethtool_link_ksettings *ks,
 769                                       struct net_device *netdev,
 770                                       struct i40e_pf *pf)
 771 {
 772         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 773         struct ethtool_link_ksettings cap_ksettings;
 774         u32 link_speed = hw_link_info->link_speed;
 775
 776         /* Initialize supported and advertised settings based on phy settings */
 777         switch (hw_link_info->phy_type) {
 778         case I40E_PHY_TYPE_40GBASE_CR4:
 779         case I40E_PHY_TYPE_40GBASE_CR4_CU:
 780                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 781                 ethtool_link_ksettings_add_link_mode(ks, supported,
 782                                                      40000baseCR4_Full);
 783                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 784                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 785                                                      40000baseCR4_Full);
 786                 break;
 787         case I40E_PHY_TYPE_XLAUI:
 788         case I40E_PHY_TYPE_XLPPI:
 789         case I40E_PHY_TYPE_40GBASE_AOC:
 790                 ethtool_link_ksettings_add_link_mode(ks, supported,
 791                                                      40000baseCR4_Full);
 792                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 793                                                      40000baseCR4_Full);
 794                 break;
 795         case I40E_PHY_TYPE_40GBASE_SR4:
 796                 ethtool_link_ksettings_add_link_mode(ks, supported,
 797                                                      40000baseSR4_Full);
 798                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 799                                                      40000baseSR4_Full);
 800                 break;
 801         case I40E_PHY_TYPE_40GBASE_LR4:
 802                 ethtool_link_ksettings_add_link_mode(ks, supported,
 803                                                      40000baseLR4_Full);
 804                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 805                                                      40000baseLR4_Full);
 806                 break;
 807         case I40E_PHY_TYPE_25GBASE_SR:
 808         case I40E_PHY_TYPE_25GBASE_LR:
 809         case I40E_PHY_TYPE_10GBASE_SR:
 810         case I40E_PHY_TYPE_10GBASE_LR:
 811         case I40E_PHY_TYPE_1000BASE_SX:
 812         case I40E_PHY_TYPE_1000BASE_LX:
 813                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 814                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 815                 ethtool_link_ksettings_add_link_mode(ks, supported,
 816                                                      25000baseSR_Full);
 817                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 818                                                      25000baseSR_Full);
 819                 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
 820                 ethtool_link_ksettings_add_link_mode(ks, supported,
 821                                                      10000baseSR_Full);
 822                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 823                                                      10000baseSR_Full);
 824                 ethtool_link_ksettings_add_link_mode(ks, supported,
 825                                                      10000baseLR_Full);
 826                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 827                                                      10000baseLR_Full);
 828                 ethtool_link_ksettings_add_link_mode(ks, supported,
 829                                                      1000baseX_Full);
 830                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 831                                                      1000baseX_Full);
 832                 ethtool_link_ksettings_add_link_mode(ks, supported,
 833                                                      10000baseT_Full);
 834                 if (hw_link_info->module_type[2] &
 835                     I40E_MODULE_TYPE_1000BASE_SX ||
 836                     hw_link_info->module_type[2] &
 837                     I40E_MODULE_TYPE_1000BASE_LX) {
 838                         ethtool_link_ksettings_add_link_mode(ks, supported,
 839                                                              1000baseT_Full);
 840                         if (hw_link_info->requested_speeds &
 841                             I40E_LINK_SPEED_1GB)
 842                                 ethtool_link_ksettings_add_link_mode(
 843                                      ks, advertising, 1000baseT_Full);
 844                 }
 845                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 846                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 847                                                              10000baseT_Full);
 848                 break;
 849         case I40E_PHY_TYPE_10GBASE_T:
 850         case I40E_PHY_TYPE_5GBASE_T_LINK_STATUS:
 851         case I40E_PHY_TYPE_2_5GBASE_T_LINK_STATUS:
 852         case I40E_PHY_TYPE_1000BASE_T:
 853         case I40E_PHY_TYPE_100BASE_TX:
 854                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 855                 ethtool_link_ksettings_add_link_mode(ks, supported,
 856                                                      10000baseT_Full);
 857                 ethtool_link_ksettings_add_link_mode(ks, supported,
 858                                                      5000baseT_Full);
 859                 ethtool_link_ksettings_add_link_mode(ks, supported,
 860                                                      2500baseT_Full);
 861                 ethtool_link_ksettings_add_link_mode(ks, supported,
 862                                                      1000baseT_Full);
 863                 ethtool_link_ksettings_add_link_mode(ks, supported,
 864                                                      100baseT_Full);
 865                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 866                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 867                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 868                                                              10000baseT_Full);
 869                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB)
 870                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 871                                                              5000baseT_Full);
 872                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB)
 873                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 874                                                              2500baseT_Full);
 875                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 876                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 877                                                              1000baseT_Full);
 878                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
 879                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 880                                                              100baseT_Full);
 881                 break;
 882         case I40E_PHY_TYPE_1000BASE_T_OPTICAL:
 883                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 884                 ethtool_link_ksettings_add_link_mode(ks, supported,
 885                                                      1000baseT_Full);
 886                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 887                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 888                                                      1000baseT_Full);
 889                 break;
 890         case I40E_PHY_TYPE_10GBASE_CR1_CU:
 891         case I40E_PHY_TYPE_10GBASE_CR1:
 892                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 893                 ethtool_link_ksettings_add_link_mode(ks, supported,
 894                                                      10000baseT_Full);
 895                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 896                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 897                                                      10000baseT_Full);
 898                 break;
 899         case I40E_PHY_TYPE_XAUI:
 900         case I40E_PHY_TYPE_XFI:
 901         case I40E_PHY_TYPE_SFI:
 902         case I40E_PHY_TYPE_10GBASE_SFPP_CU:
 903         case I40E_PHY_TYPE_10GBASE_AOC:
 904                 ethtool_link_ksettings_add_link_mode(ks, supported,
 905                                                      10000baseT_Full);
 906                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 907                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 908                                                              10000baseT_Full);
 909                 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
 910                 break;
 911         case I40E_PHY_TYPE_SGMII:
 912                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 913                 ethtool_link_ksettings_add_link_mode(ks, supported,
 914                                                      1000baseT_Full);
 915                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 916                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 917                                                              1000baseT_Full);
 918                 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) {
 919                         ethtool_link_ksettings_add_link_mode(ks, supported,
 920                                                              100baseT_Full);
 921                         if (hw_link_info->requested_speeds &
 922                             I40E_LINK_SPEED_100MB)
 923                                 ethtool_link_ksettings_add_link_mode(
 924                                       ks, advertising, 100baseT_Full);
 925                 }
 926                 break;
 927         case I40E_PHY_TYPE_40GBASE_KR4:
 928         case I40E_PHY_TYPE_25GBASE_KR:
 929         case I40E_PHY_TYPE_20GBASE_KR2:
 930         case I40E_PHY_TYPE_10GBASE_KR:
 931         case I40E_PHY_TYPE_10GBASE_KX4:
 932         case I40E_PHY_TYPE_1000BASE_KX:
 933                 ethtool_link_ksettings_add_link_mode(ks, supported,
 934                                                      40000baseKR4_Full);
 935                 ethtool_link_ksettings_add_link_mode(ks, supported,
 936                                                      25000baseKR_Full);
 937                 ethtool_link_ksettings_add_link_mode(ks, supported,
 938                                                      20000baseKR2_Full);
 939                 ethtool_link_ksettings_add_link_mode(ks, supported,
 940                                                      10000baseKR_Full);
 941                 ethtool_link_ksettings_add_link_mode(ks, supported,
 942                                                      10000baseKX4_Full);
 943                 ethtool_link_ksettings_add_link_mode(ks, supported,
 944                                                      1000baseKX_Full);
 945                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 946                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 947                                                      40000baseKR4_Full);
 948                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 949                                                      25000baseKR_Full);
 950                 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
 951                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 952                                                      20000baseKR2_Full);
 953                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 954                                                      10000baseKR_Full);
 955                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 956                                                      10000baseKX4_Full);
 957                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 958                                                      1000baseKX_Full);
 959                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 960                 break;
 961         case I40E_PHY_TYPE_25GBASE_CR:
 962                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 963                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 964                 ethtool_link_ksettings_add_link_mode(ks, supported,
 965                                                      25000baseCR_Full);
 966                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 967                                                      25000baseCR_Full);
 968                 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
 969
 970                 break;
 971         case I40E_PHY_TYPE_25GBASE_AOC:
 972         case I40E_PHY_TYPE_25GBASE_ACC:
 973                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 974                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 975                 ethtool_link_ksettings_add_link_mode(ks, supported,
 976                                                      25000baseCR_Full);
 977                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 978                                                      25000baseCR_Full);
 979                 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
 980
 981                 ethtool_link_ksettings_add_link_mode(ks, supported,
 982                                                      10000baseCR_Full);
 983                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 984                                                      10000baseCR_Full);
 985                 break;
 986         default:
 987                 /* if we got here and link is up something bad is afoot */
 988                 netdev_info(netdev,
 989                             "WARNING: Link is up but PHY type 0x%x is not recognized, or incorrect cable is in use\n",
 990                             hw_link_info->phy_type);
 991         }
 992
 993         /* Now that we've worked out everything that could be supported by the
 994          * current PHY type, get what is supported by the NVM and intersect
 995          * them to get what is truly supported
 996          */
 997         memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings));
 998         i40e_phy_type_to_ethtool(pf, &cap_ksettings);
 999         ethtool_intersect_link_masks(ks, &cap_ksettings);
1000
1001         /* Set speed and duplex */
1002         switch (link_speed) {
1003         case I40E_LINK_SPEED_40GB:
1004                 ks->base.speed = SPEED_40000;
1005                 break;
1006         case I40E_LINK_SPEED_25GB:
1007                 ks->base.speed = SPEED_25000;
1008                 break;
1009         case I40E_LINK_SPEED_20GB:
1010                 ks->base.speed = SPEED_20000;
1011                 break;
1012         case I40E_LINK_SPEED_10GB:
1013                 ks->base.speed = SPEED_10000;
1014                 break;
1015         case I40E_LINK_SPEED_5GB:
1016                 ks->base.speed = SPEED_5000;
1017                 break;
1018         case I40E_LINK_SPEED_2_5GB:
1019                 ks->base.speed = SPEED_2500;
1020                 break;
1021         case I40E_LINK_SPEED_1GB:
1022                 ks->base.speed = SPEED_1000;
1023                 break;
1024         case I40E_LINK_SPEED_100MB:
1025                 ks->base.speed = SPEED_100;
1026                 break;
1027         default:
1028                 ks->base.speed = SPEED_UNKNOWN;
1029                 break;
1030         }
1031         ks->base.duplex = DUPLEX_FULL;
1032 }
1033
1034 /**
1035  * i40e_get_settings_link_down - Get the Link settings for when link is down
1036  * @hw: hw structure
1037  * @ks: ethtool ksettings to fill in
1038  * @pf: pointer to physical function struct
1039  *
1040  * Reports link settings that can be determined when link is down
1041  **/
1042 static void i40e_get_settings_link_down(struct i40e_hw *hw,
1043                                         struct ethtool_link_ksettings *ks,
1044                                         struct i40e_pf *pf)
1045 {
1046         /* link is down and the driver needs to fall back on
1047          * supported phy types to figure out what info to display
1048          */
1049         i40e_phy_type_to_ethtool(pf, ks);
1050
1051         /* With no link speed and duplex are unknown */
1052         ks->base.speed = SPEED_UNKNOWN;
1053         ks->base.duplex = DUPLEX_UNKNOWN;
1054 }
1055
1056 /**
1057  * i40e_get_link_ksettings - Get Link Speed and Duplex settings
1058  * @netdev: network interface device structure
1059  * @ks: ethtool ksettings
1060  *
1061  * Reports speed/duplex settings based on media_type
1062  **/
1063 static int i40e_get_link_ksettings(struct net_device *netdev,
1064                                    struct ethtool_link_ksettings *ks)
1065 {
1066         struct i40e_netdev_priv *np = netdev_priv(netdev);
1067         struct i40e_pf *pf = np->vsi->back;
1068         struct i40e_hw *hw = &pf->hw;
1069         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1070         bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
1071
1072         ethtool_link_ksettings_zero_link_mode(ks, supported);
1073         ethtool_link_ksettings_zero_link_mode(ks, advertising);
1074
1075         if (link_up)
1076                 i40e_get_settings_link_up(hw, ks, netdev, pf);
1077         else
1078                 i40e_get_settings_link_down(hw, ks, pf);
1079
1080         /* Now set the settings that don't rely on link being up/down */
1081         /* Set autoneg settings */
1082         ks->base.autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
1083                             AUTONEG_ENABLE : AUTONEG_DISABLE);
1084
1085         /* Set media type settings */
1086         switch (hw->phy.media_type) {
1087         case I40E_MEDIA_TYPE_BACKPLANE:
1088                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1089                 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane);
1090                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1091                 ethtool_link_ksettings_add_link_mode(ks, advertising,
1092                                                      Backplane);
1093                 ks->base.port = PORT_NONE;
1094                 break;
1095         case I40E_MEDIA_TYPE_BASET:
1096                 ethtool_link_ksettings_add_link_mode(ks, supported, TP);
1097                 ethtool_link_ksettings_add_link_mode(ks, advertising, TP);
1098                 ks->base.port = PORT_TP;
1099                 break;
1100         case I40E_MEDIA_TYPE_DA:
1101         case I40E_MEDIA_TYPE_CX4:
1102                 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
1103                 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
1104                 ks->base.port = PORT_DA;
1105                 break;
1106         case I40E_MEDIA_TYPE_FIBER:
1107                 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
1108                 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
1109                 ks->base.port = PORT_FIBRE;
1110                 break;
1111         case I40E_MEDIA_TYPE_UNKNOWN:
1112         default:
1113                 ks->base.port = PORT_OTHER;
1114                 break;
1115         }
1116
1117         /* Set flow control settings */
1118         ethtool_link_ksettings_add_link_mode(ks, supported, Pause);
1119         ethtool_link_ksettings_add_link_mode(ks, supported, Asym_Pause);
1120
1121         switch (hw->fc.requested_mode) {
1122         case I40E_FC_FULL:
1123                 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
1124                 break;
1125         case I40E_FC_TX_PAUSE:
1126                 ethtool_link_ksettings_add_link_mode(ks, advertising,
1127                                                      Asym_Pause);
1128                 break;
1129         case I40E_FC_RX_PAUSE:
1130                 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
1131                 ethtool_link_ksettings_add_link_mode(ks, advertising,
1132                                                      Asym_Pause);
1133                 break;
1134         default:
1135                 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause);
1136                 ethtool_link_ksettings_del_link_mode(ks, advertising,
1137                                                      Asym_Pause);
1138                 break;
1139         }
1140
1141         return 0;
1142 }
1143
1144 #define I40E_LBIT_SIZE 8
1145 /**
1146  * i40e_speed_to_link_speed - Translate decimal speed to i40e_aq_link_speed
1147  * @speed: speed in decimal
1148  * @ks: ethtool ksettings
1149  *
1150  * Return i40e_aq_link_speed based on speed
1151  **/
1152 static enum i40e_aq_link_speed
1153 i40e_speed_to_link_speed(__u32 speed, const struct ethtool_link_ksettings *ks)
1154 {
1155         enum i40e_aq_link_speed link_speed = I40E_LINK_SPEED_UNKNOWN;
1156         bool speed_changed = false;
1157         int i, j;
1158
1159         static const struct {
1160                 __u32 speed;
1161                 enum i40e_aq_link_speed link_speed;
1162                 __u8 bit[I40E_LBIT_SIZE];
1163         } i40e_speed_lut[] = {
1164 #define I40E_LBIT(mode) ETHTOOL_LINK_MODE_ ## mode ##_Full_BIT
1165                 {SPEED_100, I40E_LINK_SPEED_100MB, {I40E_LBIT(100baseT)} },
1166                 {SPEED_1000, I40E_LINK_SPEED_1GB,
1167                  {I40E_LBIT(1000baseT), I40E_LBIT(1000baseX),
1168                   I40E_LBIT(1000baseKX)} },
1169                 {SPEED_10000, I40E_LINK_SPEED_10GB,
1170                  {I40E_LBIT(10000baseT), I40E_LBIT(10000baseKR),
1171                   I40E_LBIT(10000baseLR), I40E_LBIT(10000baseCR),
1172                   I40E_LBIT(10000baseSR), I40E_LBIT(10000baseKX4)} },
1173
1174                 {SPEED_25000, I40E_LINK_SPEED_25GB,
1175                  {I40E_LBIT(25000baseCR), I40E_LBIT(25000baseKR),
1176                   I40E_LBIT(25000baseSR)} },
1177                 {SPEED_40000, I40E_LINK_SPEED_40GB,
1178                  {I40E_LBIT(40000baseKR4), I40E_LBIT(40000baseCR4),
1179                   I40E_LBIT(40000baseSR4), I40E_LBIT(40000baseLR4)} },
1180                 {SPEED_20000, I40E_LINK_SPEED_20GB,
1181                  {I40E_LBIT(20000baseKR2)} },
1182                 {SPEED_2500, I40E_LINK_SPEED_2_5GB, {I40E_LBIT(2500baseT)} },
1183                 {SPEED_5000, I40E_LINK_SPEED_5GB, {I40E_LBIT(2500baseT)} }
1184 #undef I40E_LBIT
1185 };
1186
1187         for (i = 0; i < ARRAY_SIZE(i40e_speed_lut); i++) {
1188                 if (i40e_speed_lut[i].speed == speed) {
1189                         for (j = 0; j < I40E_LBIT_SIZE; j++) {
1190                                 if (test_bit(i40e_speed_lut[i].bit[j],
1191                                              ks->link_modes.supported)) {
1192                                         speed_changed = true;
1193                                         break;
1194                                 }
1195                                 if (!i40e_speed_lut[i].bit[j])
1196                                         break;
1197                         }
1198                         if (speed_changed) {
1199                                 link_speed = i40e_speed_lut[i].link_speed;
1200                                 break;
1201                         }
1202                 }
1203         }
1204         return link_speed;
1205 }
1206
1207 #undef I40E_LBIT_SIZE
1208
1209 /**
1210  * i40e_set_link_ksettings - Set Speed and Duplex
1211  * @netdev: network interface device structure
1212  * @ks: ethtool ksettings
1213  *
1214  * Set speed/duplex per media_types advertised/forced
1215  **/
1216 static int i40e_set_link_ksettings(struct net_device *netdev,
1217                                    const struct ethtool_link_ksettings *ks)
1218 {
1219         struct i40e_netdev_priv *np = netdev_priv(netdev);
1220         struct i40e_aq_get_phy_abilities_resp abilities;
1221         struct ethtool_link_ksettings safe_ks;
1222         struct ethtool_link_ksettings copy_ks;
1223         struct i40e_aq_set_phy_config config;
1224         struct i40e_pf *pf = np->vsi->back;
1225         enum i40e_aq_link_speed link_speed;
1226         struct i40e_vsi *vsi = np->vsi;
1227         struct i40e_hw *hw = &pf->hw;
1228         bool autoneg_changed = false;
1229         int timeout = 50;
1230         int status = 0;
1231         int err = 0;
1232         __u32 speed;
1233         u8 autoneg;
1234
1235         /* Changing port settings is not supported if this isn't the
1236          * port's controlling PF
1237          */
1238         if (hw->partition_id != 1) {
1239                 i40e_partition_setting_complaint(pf);
1240                 return -EOPNOTSUPP;
1241         }
1242         if (vsi != pf->vsi[pf->lan_vsi])
1243                 return -EOPNOTSUPP;
1244         if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET &&
1245             hw->phy.media_type != I40E_MEDIA_TYPE_FIBER &&
1246             hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE &&
1247             hw->phy.media_type != I40E_MEDIA_TYPE_DA &&
1248             hw->phy.link_info.link_info & I40E_AQ_LINK_UP)
1249                 return -EOPNOTSUPP;
1250         if (hw->device_id == I40E_DEV_ID_KX_B ||
1251             hw->device_id == I40E_DEV_ID_KX_C ||
1252             hw->device_id == I40E_DEV_ID_20G_KR2 ||
1253             hw->device_id == I40E_DEV_ID_20G_KR2_A ||
1254             hw->device_id == I40E_DEV_ID_25G_B ||
1255             hw->device_id == I40E_DEV_ID_KX_X722) {
1256                 netdev_info(netdev, "Changing settings is not supported on backplane.\n");
1257                 return -EOPNOTSUPP;
1258         }
1259
1260         /* copy the ksettings to copy_ks to avoid modifying the origin */
1261         memcpy(&copy_ks, ks, sizeof(struct ethtool_link_ksettings));
1262
1263         /* save autoneg out of ksettings */
1264         autoneg = copy_ks.base.autoneg;
1265         speed = copy_ks.base.speed;
1266
1267         /* get our own copy of the bits to check against */
1268         memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings));
1269         safe_ks.base.cmd = copy_ks.base.cmd;
1270         safe_ks.base.link_mode_masks_nwords =
1271                 copy_ks.base.link_mode_masks_nwords;
1272         i40e_get_link_ksettings(netdev, &safe_ks);
1273
1274         /* Get link modes supported by hardware and check against modes
1275          * requested by the user.  Return an error if unsupported mode was set.
1276          */
1277         if (!bitmap_subset(copy_ks.link_modes.advertising,
1278                            safe_ks.link_modes.supported,
1279                            __ETHTOOL_LINK_MODE_MASK_NBITS))
1280                 return -EINVAL;
1281
1282         /* set autoneg back to what it currently is */
1283         copy_ks.base.autoneg = safe_ks.base.autoneg;
1284         copy_ks.base.speed  = safe_ks.base.speed;
1285
1286         /* If copy_ks.base and safe_ks.base are not the same now, then they are
1287          * trying to set something that we do not support.
1288          */
1289         if (memcmp(&copy_ks.base, &safe_ks.base,
1290                    sizeof(struct ethtool_link_settings))) {
1291                 netdev_err(netdev, "Only speed and autoneg are supported.\n");
1292                 return -EOPNOTSUPP;
1293         }
1294
1295         while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) {
1296                 timeout--;
1297                 if (!timeout)
1298                         return -EBUSY;
1299                 usleep_range(1000, 2000);
1300         }
1301
1302         /* Get the current phy config */
1303         status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1304                                               NULL);
1305         if (status) {
1306                 err = -EAGAIN;
1307                 goto done;
1308         }
1309
1310         /* Copy abilities to config in case autoneg is not
1311          * set below
1312          */
1313         memset(&config, 0, sizeof(struct i40e_aq_set_phy_config));
1314         config.abilities = abilities.abilities;
1315
1316         /* Check autoneg */
1317         if (autoneg == AUTONEG_ENABLE) {
1318                 /* If autoneg was not already enabled */
1319                 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) {
1320                         /* If autoneg is not supported, return error */
1321                         if (!ethtool_link_ksettings_test_link_mode(&safe_ks,
1322                                                                    supported,
1323                                                                    Autoneg)) {
1324                                 netdev_info(netdev, "Autoneg not supported on this phy\n");
1325                                 err = -EINVAL;
1326                                 goto done;
1327                         }
1328                         /* Autoneg is allowed to change */
1329                         config.abilities = abilities.abilities |
1330                                            I40E_AQ_PHY_ENABLE_AN;
1331                         autoneg_changed = true;
1332                 }
1333         } else {
1334                 /* If autoneg is currently enabled */
1335                 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) {
1336                         /* If autoneg is supported 10GBASE_T is the only PHY
1337                          * that can disable it, so otherwise return error
1338                          */
1339                         if (ethtool_link_ksettings_test_link_mode(&safe_ks,
1340                                                                   supported,
1341                                                                   Autoneg) &&
1342                             hw->phy.media_type != I40E_MEDIA_TYPE_BASET) {
1343                                 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
1344                                 err = -EINVAL;
1345                                 goto done;
1346                         }
1347                         /* Autoneg is allowed to change */
1348                         config.abilities = abilities.abilities &
1349                                            ~I40E_AQ_PHY_ENABLE_AN;
1350                         autoneg_changed = true;
1351                 }
1352         }
1353
1354         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1355                                                   100baseT_Full))
1356                 config.link_speed |= I40E_LINK_SPEED_100MB;
1357         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1358                                                   1000baseT_Full) ||
1359             ethtool_link_ksettings_test_link_mode(ks, advertising,
1360                                                   1000baseX_Full) ||
1361             ethtool_link_ksettings_test_link_mode(ks, advertising,
1362                                                   1000baseKX_Full))
1363                 config.link_speed |= I40E_LINK_SPEED_1GB;
1364         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1365                                                   10000baseT_Full) ||
1366             ethtool_link_ksettings_test_link_mode(ks, advertising,
1367                                                   10000baseKX4_Full) ||
1368             ethtool_link_ksettings_test_link_mode(ks, advertising,
1369                                                   10000baseKR_Full) ||
1370             ethtool_link_ksettings_test_link_mode(ks, advertising,
1371                                                   10000baseCR_Full) ||
1372             ethtool_link_ksettings_test_link_mode(ks, advertising,
1373                                                   10000baseSR_Full) ||
1374             ethtool_link_ksettings_test_link_mode(ks, advertising,
1375                                                   10000baseLR_Full))
1376                 config.link_speed |= I40E_LINK_SPEED_10GB;
1377         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1378                                                   2500baseT_Full))
1379                 config.link_speed |= I40E_LINK_SPEED_2_5GB;
1380         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1381                                                   5000baseT_Full))
1382                 config.link_speed |= I40E_LINK_SPEED_5GB;
1383         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1384                                                   20000baseKR2_Full))
1385                 config.link_speed |= I40E_LINK_SPEED_20GB;
1386         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1387                                                   25000baseCR_Full) ||
1388             ethtool_link_ksettings_test_link_mode(ks, advertising,
1389                                                   25000baseKR_Full) ||
1390             ethtool_link_ksettings_test_link_mode(ks, advertising,
1391                                                   25000baseSR_Full))
1392                 config.link_speed |= I40E_LINK_SPEED_25GB;
1393         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1394                                                   40000baseKR4_Full) ||
1395             ethtool_link_ksettings_test_link_mode(ks, advertising,
1396                                                   40000baseCR4_Full) ||
1397             ethtool_link_ksettings_test_link_mode(ks, advertising,
1398                                                   40000baseSR4_Full) ||
1399             ethtool_link_ksettings_test_link_mode(ks, advertising,
1400                                                   40000baseLR4_Full))
1401                 config.link_speed |= I40E_LINK_SPEED_40GB;
1402
1403         /* Autonegotiation must be disabled to change speed */
1404         if ((speed != SPEED_UNKNOWN && safe_ks.base.speed != speed) &&
1405             (autoneg == AUTONEG_DISABLE ||
1406             (safe_ks.base.autoneg == AUTONEG_DISABLE && !autoneg_changed))) {
1407                 link_speed = i40e_speed_to_link_speed(speed, ks);
1408                 if (link_speed == I40E_LINK_SPEED_UNKNOWN) {
1409                         netdev_info(netdev, "Given speed is not supported\n");
1410                         err = -EOPNOTSUPP;
1411                         goto done;
1412                 } else {
1413                         config.link_speed = link_speed;
1414                 }
1415         } else {
1416                 if (safe_ks.base.speed != speed) {
1417                         netdev_info(netdev,
1418                                     "Unable to set speed, disable autoneg\n");
1419                         err = -EOPNOTSUPP;
1420                         goto done;
1421                 }
1422         }
1423
1424         /* If speed didn't get set, set it to what it currently is.
1425          * This is needed because if advertise is 0 (as it is when autoneg
1426          * is disabled) then speed won't get set.
1427          */
1428         if (!config.link_speed)
1429                 config.link_speed = abilities.link_speed;
1430         if (autoneg_changed || abilities.link_speed != config.link_speed) {
1431                 /* copy over the rest of the abilities */
1432                 config.phy_type = abilities.phy_type;
1433                 config.phy_type_ext = abilities.phy_type_ext;
1434                 config.eee_capability = abilities.eee_capability;
1435                 config.eeer = abilities.eeer_val;
1436                 config.low_power_ctrl = abilities.d3_lpan;
1437                 config.fec_config = abilities.fec_cfg_curr_mod_ext_info &
1438                                     I40E_AQ_PHY_FEC_CONFIG_MASK;
1439
1440                 /* save the requested speeds */
1441                 hw->phy.link_info.requested_speeds = config.link_speed;
1442                 /* set link and auto negotiation so changes take effect */
1443                 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
1444                 /* If link is up put link down */
1445                 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) {
1446                         /* Tell the OS link is going down, the link will go
1447                          * back up when fw says it is ready asynchronously
1448                          */
1449                         i40e_print_link_message(vsi, false);
1450                         netif_carrier_off(netdev);
1451                         netif_tx_stop_all_queues(netdev);
1452                 }
1453
1454                 /* make the aq call */
1455                 status = i40e_aq_set_phy_config(hw, &config, NULL);
1456                 if (status) {
1457                         netdev_info(netdev,
1458                                     "Set phy config failed, err %pe aq_err %s\n",
1459                                     ERR_PTR(status),
1460                                     i40e_aq_str(hw, hw->aq.asq_last_status));
1461                         err = -EAGAIN;
1462                         goto done;
1463                 }
1464
1465                 status = i40e_update_link_info(hw);
1466                 if (status)
1467                         netdev_dbg(netdev,
1468                                    "Updating link info failed with err %pe aq_err %s\n",
1469                                    ERR_PTR(status),
1470                                    i40e_aq_str(hw, hw->aq.asq_last_status));
1471
1472         } else {
1473                 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
1474         }
1475
1476 done:
1477         clear_bit(__I40E_CONFIG_BUSY, pf->state);
1478
1479         return err;
1480 }
1481
1482 static int i40e_set_fec_cfg(struct net_device *netdev, u8 fec_cfg)
1483 {
1484         struct i40e_netdev_priv *np = netdev_priv(netdev);
1485         struct i40e_aq_get_phy_abilities_resp abilities;
1486         struct i40e_pf *pf = np->vsi->back;
1487         struct i40e_hw *hw = &pf->hw;
1488         int status = 0;
1489         u32 flags = 0;
1490         int err = 0;
1491
1492         flags = READ_ONCE(pf->flags);
1493         i40e_set_fec_in_flags(fec_cfg, &flags);
1494
1495         /* Get the current phy config */
1496         memset(&abilities, 0, sizeof(abilities));
1497         status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1498                                               NULL);
1499         if (status) {
1500                 err = -EAGAIN;
1501                 goto done;
1502         }
1503
1504         if (abilities.fec_cfg_curr_mod_ext_info != fec_cfg) {
1505                 struct i40e_aq_set_phy_config config;
1506
1507                 memset(&config, 0, sizeof(config));
1508                 config.phy_type = abilities.phy_type;
1509                 config.abilities = abilities.abilities |
1510                                    I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
1511                 config.phy_type_ext = abilities.phy_type_ext;
1512                 config.link_speed = abilities.link_speed;
1513                 config.eee_capability = abilities.eee_capability;
1514                 config.eeer = abilities.eeer_val;
1515                 config.low_power_ctrl = abilities.d3_lpan;
1516                 config.fec_config = fec_cfg & I40E_AQ_PHY_FEC_CONFIG_MASK;
1517                 status = i40e_aq_set_phy_config(hw, &config, NULL);
1518                 if (status) {
1519                         netdev_info(netdev,
1520                                     "Set phy config failed, err %pe aq_err %s\n",
1521                                     ERR_PTR(status),
1522                                     i40e_aq_str(hw, hw->aq.asq_last_status));
1523                         err = -EAGAIN;
1524                         goto done;
1525                 }
1526                 pf->flags = flags;
1527                 status = i40e_update_link_info(hw);
1528                 if (status)
1529                         /* debug level message only due to relation to the link
1530                          * itself rather than to the FEC settings
1531                          * (e.g. no physical connection etc.)
1532                          */
1533                         netdev_dbg(netdev,
1534                                    "Updating link info failed with err %pe aq_err %s\n",
1535                                    ERR_PTR(status),
1536                                    i40e_aq_str(hw, hw->aq.asq_last_status));
1537         }
1538
1539 done:
1540         return err;
1541 }
1542
1543 static int i40e_get_fec_param(struct net_device *netdev,
1544                               struct ethtool_fecparam *fecparam)
1545 {
1546         struct i40e_netdev_priv *np = netdev_priv(netdev);
1547         struct i40e_aq_get_phy_abilities_resp abilities;
1548         struct i40e_pf *pf = np->vsi->back;
1549         struct i40e_hw *hw = &pf->hw;
1550         int status = 0;
1551         int err = 0;
1552         u8 fec_cfg;
1553
1554         /* Get the current phy config */
1555         memset(&abilities, 0, sizeof(abilities));
1556         status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1557                                               NULL);
1558         if (status) {
1559                 err = -EAGAIN;
1560                 goto done;
1561         }
1562
1563         fecparam->fec = 0;
1564         fec_cfg = abilities.fec_cfg_curr_mod_ext_info;
1565         if (fec_cfg & I40E_AQ_SET_FEC_AUTO)
1566                 fecparam->fec |= ETHTOOL_FEC_AUTO;
1567         else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_RS |
1568                  I40E_AQ_SET_FEC_ABILITY_RS))
1569                 fecparam->fec |= ETHTOOL_FEC_RS;
1570         else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_KR |
1571                  I40E_AQ_SET_FEC_ABILITY_KR))
1572                 fecparam->fec |= ETHTOOL_FEC_BASER;
1573         if (fec_cfg == 0)
1574                 fecparam->fec |= ETHTOOL_FEC_OFF;
1575
1576         if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_KR_ENA)
1577                 fecparam->active_fec = ETHTOOL_FEC_BASER;
1578         else if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_RS_ENA)
1579                 fecparam->active_fec = ETHTOOL_FEC_RS;
1580         else
1581                 fecparam->active_fec = ETHTOOL_FEC_OFF;
1582 done:
1583         return err;
1584 }
1585
1586 static int i40e_set_fec_param(struct net_device *netdev,
1587                               struct ethtool_fecparam *fecparam)
1588 {
1589         struct i40e_netdev_priv *np = netdev_priv(netdev);
1590         struct i40e_pf *pf = np->vsi->back;
1591         struct i40e_hw *hw = &pf->hw;
1592         u8 fec_cfg = 0;
1593
1594         if (hw->device_id != I40E_DEV_ID_25G_SFP28 &&
1595             hw->device_id != I40E_DEV_ID_25G_B &&
1596             hw->device_id != I40E_DEV_ID_KX_X722)
1597                 return -EPERM;
1598
1599         if (hw->mac.type == I40E_MAC_X722 &&
1600             !(hw->flags & I40E_HW_FLAG_X722_FEC_REQUEST_CAPABLE)) {
1601                 netdev_err(netdev, "Setting FEC encoding not supported by firmware. Please update the NVM image.\n");
1602                 return -EOPNOTSUPP;
1603         }
1604
1605         switch (fecparam->fec) {
1606         case ETHTOOL_FEC_AUTO:
1607                 fec_cfg = I40E_AQ_SET_FEC_AUTO;
1608                 break;
1609         case ETHTOOL_FEC_RS:
1610                 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS |
1611                              I40E_AQ_SET_FEC_ABILITY_RS);
1612                 break;
1613         case ETHTOOL_FEC_BASER:
1614                 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR |
1615                              I40E_AQ_SET_FEC_ABILITY_KR);
1616                 break;
1617         case ETHTOOL_FEC_OFF:
1618         case ETHTOOL_FEC_NONE:
1619                 fec_cfg = 0;
1620                 break;
1621         default:
1622                 dev_warn(&pf->pdev->dev, "Unsupported FEC mode: %d",
1623                          fecparam->fec);
1624                 return -EINVAL;
1625         }
1626
1627         return i40e_set_fec_cfg(netdev, fec_cfg);
1628 }
1629
1630 static int i40e_nway_reset(struct net_device *netdev)
1631 {
1632         /* restart autonegotiation */
1633         struct i40e_netdev_priv *np = netdev_priv(netdev);
1634         struct i40e_pf *pf = np->vsi->back;
1635         struct i40e_hw *hw = &pf->hw;
1636         bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP;
1637         int ret = 0;
1638
1639         ret = i40e_aq_set_link_restart_an(hw, link_up, NULL);
1640         if (ret) {
1641                 netdev_info(netdev, "link restart failed, err %pe aq_err %s\n",
1642                             ERR_PTR(ret),
1643                             i40e_aq_str(hw, hw->aq.asq_last_status));
1644                 return -EIO;
1645         }
1646
1647         return 0;
1648 }
1649
1650 /**
1651  * i40e_get_pauseparam -  Get Flow Control status
1652  * @netdev: netdevice structure
1653  * @pause: buffer to return pause parameters
1654  *
1655  * Return tx/rx-pause status
1656  **/
1657 static void i40e_get_pauseparam(struct net_device *netdev,
1658                                 struct ethtool_pauseparam *pause)
1659 {
1660         struct i40e_netdev_priv *np = netdev_priv(netdev);
1661         struct i40e_pf *pf = np->vsi->back;
1662         struct i40e_hw *hw = &pf->hw;
1663         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1664         struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
1665
1666         pause->autoneg =
1667                 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
1668                   AUTONEG_ENABLE : AUTONEG_DISABLE);
1669
1670         /* PFC enabled so report LFC as off */
1671         if (dcbx_cfg->pfc.pfcenable) {
1672                 pause->rx_pause = 0;
1673                 pause->tx_pause = 0;
1674                 return;
1675         }
1676
1677         if (hw->fc.current_mode == I40E_FC_RX_PAUSE) {
1678                 pause->rx_pause = 1;
1679         } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) {
1680                 pause->tx_pause = 1;
1681         } else if (hw->fc.current_mode == I40E_FC_FULL) {
1682                 pause->rx_pause = 1;
1683                 pause->tx_pause = 1;
1684         }
1685 }
1686
1687 /**
1688  * i40e_set_pauseparam - Set Flow Control parameter
1689  * @netdev: network interface device structure
1690  * @pause: return tx/rx flow control status
1691  **/
1692 static int i40e_set_pauseparam(struct net_device *netdev,
1693                                struct ethtool_pauseparam *pause)
1694 {
1695         struct i40e_netdev_priv *np = netdev_priv(netdev);
1696         struct i40e_pf *pf = np->vsi->back;
1697         struct i40e_vsi *vsi = np->vsi;
1698         struct i40e_hw *hw = &pf->hw;
1699         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1700         struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
1701         bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
1702         u8 aq_failures;
1703         int err = 0;
1704         int status;
1705         u32 is_an;
1706
1707         /* Changing the port's flow control is not supported if this isn't the
1708          * port's controlling PF
1709          */
1710         if (hw->partition_id != 1) {
1711                 i40e_partition_setting_complaint(pf);
1712                 return -EOPNOTSUPP;
1713         }
1714
1715         if (vsi != pf->vsi[pf->lan_vsi])
1716                 return -EOPNOTSUPP;
1717
1718         is_an = hw_link_info->an_info & I40E_AQ_AN_COMPLETED;
1719         if (pause->autoneg != is_an) {
1720                 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
1721                 return -EOPNOTSUPP;
1722         }
1723
1724         /* If we have link and don't have autoneg */
1725         if (!test_bit(__I40E_DOWN, pf->state) && !is_an) {
1726                 /* Send message that it might not necessarily work*/
1727                 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
1728         }
1729
1730         if (dcbx_cfg->pfc.pfcenable) {
1731                 netdev_info(netdev,
1732                             "Priority flow control enabled. Cannot set link flow control.\n");
1733                 return -EOPNOTSUPP;
1734         }
1735
1736         if (pause->rx_pause && pause->tx_pause)
1737                 hw->fc.requested_mode = I40E_FC_FULL;
1738         else if (pause->rx_pause && !pause->tx_pause)
1739                 hw->fc.requested_mode = I40E_FC_RX_PAUSE;
1740         else if (!pause->rx_pause && pause->tx_pause)
1741                 hw->fc.requested_mode = I40E_FC_TX_PAUSE;
1742         else if (!pause->rx_pause && !pause->tx_pause)
1743                 hw->fc.requested_mode = I40E_FC_NONE;
1744         else
1745                 return -EINVAL;
1746
1747         /* Tell the OS link is going down, the link will go back up when fw
1748          * says it is ready asynchronously
1749          */
1750         i40e_print_link_message(vsi, false);
1751         netif_carrier_off(netdev);
1752         netif_tx_stop_all_queues(netdev);
1753
1754         /* Set the fc mode and only restart an if link is up*/
1755         status = i40e_set_fc(hw, &aq_failures, link_up);
1756
1757         if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) {
1758                 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %pe aq_err %s\n",
1759                             ERR_PTR(status),
1760                             i40e_aq_str(hw, hw->aq.asq_last_status));
1761                 err = -EAGAIN;
1762         }
1763         if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) {
1764                 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %pe aq_err %s\n",
1765                             ERR_PTR(status),
1766                             i40e_aq_str(hw, hw->aq.asq_last_status));
1767                 err = -EAGAIN;
1768         }
1769         if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) {
1770                 netdev_info(netdev, "Set fc failed on the get_link_info call with err %pe aq_err %s\n",
1771                             ERR_PTR(status),
1772                             i40e_aq_str(hw, hw->aq.asq_last_status));
1773                 err = -EAGAIN;
1774         }
1775
1776         if (!test_bit(__I40E_DOWN, pf->state) && is_an) {
1777                 /* Give it a little more time to try to come back */
1778                 msleep(75);
1779                 if (!test_bit(__I40E_DOWN, pf->state))
1780                         return i40e_nway_reset(netdev);
1781         }
1782
1783         return err;
1784 }
1785
1786 static u32 i40e_get_msglevel(struct net_device *netdev)
1787 {
1788         struct i40e_netdev_priv *np = netdev_priv(netdev);
1789         struct i40e_pf *pf = np->vsi->back;
1790         u32 debug_mask = pf->hw.debug_mask;
1791
1792         if (debug_mask)
1793                 netdev_info(netdev, "i40e debug_mask: 0x%08X\n", debug_mask);
1794
1795         return pf->msg_enable;
1796 }
1797
1798 static void i40e_set_msglevel(struct net_device *netdev, u32 data)
1799 {
1800         struct i40e_netdev_priv *np = netdev_priv(netdev);
1801         struct i40e_pf *pf = np->vsi->back;
1802
1803         if (I40E_DEBUG_USER & data)
1804                 pf->hw.debug_mask = data;
1805         else
1806                 pf->msg_enable = data;
1807 }
1808
1809 static int i40e_get_regs_len(struct net_device *netdev)
1810 {
1811         int reg_count = 0;
1812         int i;
1813
1814         for (i = 0; i40e_reg_list[i].offset != 0; i++)
1815                 reg_count += i40e_reg_list[i].elements;
1816
1817         return reg_count * sizeof(u32);
1818 }
1819
1820 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
1821                           void *p)
1822 {
1823         struct i40e_netdev_priv *np = netdev_priv(netdev);
1824         struct i40e_pf *pf = np->vsi->back;
1825         struct i40e_hw *hw = &pf->hw;
1826         u32 *reg_buf = p;
1827         unsigned int i, j, ri;
1828         u32 reg;
1829
1830         /* Tell ethtool which driver-version-specific regs output we have.
1831          *
1832          * At some point, if we have ethtool doing special formatting of
1833          * this data, it will rely on this version number to know how to
1834          * interpret things.  Hence, this needs to be updated if/when the
1835          * diags register table is changed.
1836          */
1837         regs->version = 1;
1838
1839         /* loop through the diags reg table for what to print */
1840         ri = 0;
1841         for (i = 0; i40e_reg_list[i].offset != 0; i++) {
1842                 for (j = 0; j < i40e_reg_list[i].elements; j++) {
1843                         reg = i40e_reg_list[i].offset
1844                                 + (j * i40e_reg_list[i].stride);
1845                         reg_buf[ri++] = rd32(hw, reg);
1846                 }
1847         }
1848
1849 }
1850
1851 static int i40e_get_eeprom(struct net_device *netdev,
1852                            struct ethtool_eeprom *eeprom, u8 *bytes)
1853 {
1854         struct i40e_netdev_priv *np = netdev_priv(netdev);
1855         struct i40e_hw *hw = &np->vsi->back->hw;
1856         struct i40e_pf *pf = np->vsi->back;
1857         int ret_val = 0, len, offset;
1858         u8 *eeprom_buff;
1859         u16 i, sectors;
1860         bool last;
1861         u32 magic;
1862
1863 #define I40E_NVM_SECTOR_SIZE  4096
1864         if (eeprom->len == 0)
1865                 return -EINVAL;
1866
1867         /* check for NVMUpdate access method */
1868         magic = hw->vendor_id | (hw->device_id << 16);
1869         if (eeprom->magic && eeprom->magic != magic) {
1870                 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1871                 int errno = 0;
1872
1873                 /* make sure it is the right magic for NVMUpdate */
1874                 if ((eeprom->magic >> 16) != hw->device_id)
1875                         errno = -EINVAL;
1876                 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
1877                          test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
1878                         errno = -EBUSY;
1879                 else
1880                         ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1881
1882                 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1883                         dev_info(&pf->pdev->dev,
1884                                  "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1885                                  ret_val, hw->aq.asq_last_status, errno,
1886                                  (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1887                                  cmd->offset, cmd->data_size);
1888
1889                 return errno;
1890         }
1891
1892         /* normal ethtool get_eeprom support */
1893         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
1894
1895         eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL);
1896         if (!eeprom_buff)
1897                 return -ENOMEM;
1898
1899         ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
1900         if (ret_val) {
1901                 dev_info(&pf->pdev->dev,
1902                          "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1903                          ret_val, hw->aq.asq_last_status);
1904                 goto free_buff;
1905         }
1906
1907         sectors = eeprom->len / I40E_NVM_SECTOR_SIZE;
1908         sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0;
1909         len = I40E_NVM_SECTOR_SIZE;
1910         last = false;
1911         for (i = 0; i < sectors; i++) {
1912                 if (i == (sectors - 1)) {
1913                         len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i);
1914                         last = true;
1915                 }
1916                 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i),
1917                 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len,
1918                                 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i),
1919                                 last, NULL);
1920                 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) {
1921                         dev_info(&pf->pdev->dev,
1922                                  "read NVM failed, invalid offset 0x%x\n",
1923                                  offset);
1924                         break;
1925                 } else if (ret_val &&
1926                            hw->aq.asq_last_status == I40E_AQ_RC_EACCES) {
1927                         dev_info(&pf->pdev->dev,
1928                                  "read NVM failed, access, offset 0x%x\n",
1929                                  offset);
1930                         break;
1931                 } else if (ret_val) {
1932                         dev_info(&pf->pdev->dev,
1933                                  "read NVM failed offset %d err=%d status=0x%x\n",
1934                                  offset, ret_val, hw->aq.asq_last_status);
1935                         break;
1936                 }
1937         }
1938
1939         i40e_release_nvm(hw);
1940         memcpy(bytes, (u8 *)eeprom_buff, eeprom->len);
1941 free_buff:
1942         kfree(eeprom_buff);
1943         return ret_val;
1944 }
1945
1946 static int i40e_get_eeprom_len(struct net_device *netdev)
1947 {
1948         struct i40e_netdev_priv *np = netdev_priv(netdev);
1949         struct i40e_hw *hw = &np->vsi->back->hw;
1950         u32 val;
1951
1952 #define X722_EEPROM_SCOPE_LIMIT 0x5B9FFF
1953         if (hw->mac.type == I40E_MAC_X722) {
1954                 val = X722_EEPROM_SCOPE_LIMIT + 1;
1955                 return val;
1956         }
1957         val = (rd32(hw, I40E_GLPCI_LBARCTRL)
1958                 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK)
1959                 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT;
1960         /* register returns value in power of 2, 64Kbyte chunks. */
1961         val = (64 * 1024) * BIT(val);
1962         return val;
1963 }
1964
1965 static int i40e_set_eeprom(struct net_device *netdev,
1966                            struct ethtool_eeprom *eeprom, u8 *bytes)
1967 {
1968         struct i40e_netdev_priv *np = netdev_priv(netdev);
1969         struct i40e_hw *hw = &np->vsi->back->hw;
1970         struct i40e_pf *pf = np->vsi->back;
1971         struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1972         int ret_val = 0;
1973         int errno = 0;
1974         u32 magic;
1975
1976         /* normal ethtool set_eeprom is not supported */
1977         magic = hw->vendor_id | (hw->device_id << 16);
1978         if (eeprom->magic == magic)
1979                 errno = -EOPNOTSUPP;
1980         /* check for NVMUpdate access method */
1981         else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id)
1982                 errno = -EINVAL;
1983         else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
1984                  test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
1985                 errno = -EBUSY;
1986         else
1987                 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1988
1989         if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1990                 dev_info(&pf->pdev->dev,
1991                          "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1992                          ret_val, hw->aq.asq_last_status, errno,
1993                          (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1994                          cmd->offset, cmd->data_size);
1995
1996         return errno;
1997 }
1998
1999 static void i40e_get_drvinfo(struct net_device *netdev,
2000                              struct ethtool_drvinfo *drvinfo)
2001 {
2002         struct i40e_netdev_priv *np = netdev_priv(netdev);
2003         struct i40e_vsi *vsi = np->vsi;
2004         struct i40e_pf *pf = vsi->back;
2005
2006         strscpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver));
2007         strscpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw),
2008                 sizeof(drvinfo->fw_version));
2009         strscpy(drvinfo->bus_info, pci_name(pf->pdev),
2010                 sizeof(drvinfo->bus_info));
2011         drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN;
2012         if (pf->hw.pf_id == 0)
2013                 drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN;
2014 }
2015
2016 static void i40e_get_ringparam(struct net_device *netdev,
2017                                struct ethtool_ringparam *ring,
2018                                struct kernel_ethtool_ringparam *kernel_ring,
2019                                struct netlink_ext_ack *extack)
2020 {
2021         struct i40e_netdev_priv *np = netdev_priv(netdev);
2022         struct i40e_pf *pf = np->vsi->back;
2023         struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
2024
2025         ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
2026         ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
2027         ring->rx_mini_max_pending = 0;
2028         ring->rx_jumbo_max_pending = 0;
2029         ring->rx_pending = vsi->rx_rings[0]->count;
2030         ring->tx_pending = vsi->tx_rings[0]->count;
2031         ring->rx_mini_pending = 0;
2032         ring->rx_jumbo_pending = 0;
2033 }
2034
2035 static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index)
2036 {
2037         if (i40e_enabled_xdp_vsi(vsi)) {
2038                 return index < vsi->num_queue_pairs ||
2039                         (index >= vsi->alloc_queue_pairs &&
2040                          index < vsi->alloc_queue_pairs + vsi->num_queue_pairs);
2041         }
2042
2043         return index < vsi->num_queue_pairs;
2044 }
2045
2046 static int i40e_set_ringparam(struct net_device *netdev,
2047                               struct ethtool_ringparam *ring,
2048                               struct kernel_ethtool_ringparam *kernel_ring,
2049                               struct netlink_ext_ack *extack)
2050 {
2051         struct i40e_ring *tx_rings = NULL, *rx_rings = NULL;
2052         struct i40e_netdev_priv *np = netdev_priv(netdev);
2053         struct i40e_hw *hw = &np->vsi->back->hw;
2054         struct i40e_vsi *vsi = np->vsi;
2055         struct i40e_pf *pf = vsi->back;
2056         u32 new_rx_count, new_tx_count;
2057         u16 tx_alloc_queue_pairs;
2058         int timeout = 50;
2059         int i, err = 0;
2060
2061         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
2062                 return -EINVAL;
2063
2064         if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS ||
2065             ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS ||
2066             ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS ||
2067             ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) {
2068                 netdev_info(netdev,
2069                             "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n",
2070                             ring->tx_pending, ring->rx_pending,
2071                             I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS);
2072                 return -EINVAL;
2073         }
2074
2075         new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
2076         new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
2077
2078         /* if nothing to do return success */
2079         if ((new_tx_count == vsi->tx_rings[0]->count) &&
2080             (new_rx_count == vsi->rx_rings[0]->count))
2081                 return 0;
2082
2083         /* If there is a AF_XDP page pool attached to any of Rx rings,
2084          * disallow changing the number of descriptors -- regardless
2085          * if the netdev is running or not.
2086          */
2087         if (i40e_xsk_any_rx_ring_enabled(vsi))
2088                 return -EBUSY;
2089
2090         while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) {
2091                 timeout--;
2092                 if (!timeout)
2093                         return -EBUSY;
2094                 usleep_range(1000, 2000);
2095         }
2096
2097         if (!netif_running(vsi->netdev)) {
2098                 /* simple case - set for the next time the netdev is started */
2099                 for (i = 0; i < vsi->num_queue_pairs; i++) {
2100                         vsi->tx_rings[i]->count = new_tx_count;
2101                         vsi->rx_rings[i]->count = new_rx_count;
2102                         if (i40e_enabled_xdp_vsi(vsi))
2103                                 vsi->xdp_rings[i]->count = new_tx_count;
2104                 }
2105                 vsi->num_tx_desc = new_tx_count;
2106                 vsi->num_rx_desc = new_rx_count;
2107                 goto done;
2108         }
2109
2110         /* We can't just free everything and then setup again,
2111          * because the ISRs in MSI-X mode get passed pointers
2112          * to the Tx and Rx ring structs.
2113          */
2114
2115         /* alloc updated Tx and XDP Tx resources */
2116         tx_alloc_queue_pairs = vsi->alloc_queue_pairs *
2117                                (i40e_enabled_xdp_vsi(vsi) ? 2 : 1);
2118         if (new_tx_count != vsi->tx_rings[0]->count) {
2119                 netdev_info(netdev,
2120                             "Changing Tx descriptor count from %d to %d.\n",
2121                             vsi->tx_rings[0]->count, new_tx_count);
2122                 tx_rings = kcalloc(tx_alloc_queue_pairs,
2123                                    sizeof(struct i40e_ring), GFP_KERNEL);
2124                 if (!tx_rings) {
2125                         err = -ENOMEM;
2126                         goto done;
2127                 }
2128
2129                 for (i = 0; i < tx_alloc_queue_pairs; i++) {
2130                         if (!i40e_active_tx_ring_index(vsi, i))
2131                                 continue;
2132
2133                         tx_rings[i] = *vsi->tx_rings[i];
2134                         tx_rings[i].count = new_tx_count;
2135                         /* the desc and bi pointers will be reallocated in the
2136                          * setup call
2137                          */
2138                         tx_rings[i].desc = NULL;
2139                         tx_rings[i].rx_bi = NULL;
2140                         err = i40e_setup_tx_descriptors(&tx_rings[i]);
2141                         if (err) {
2142                                 while (i) {
2143                                         i--;
2144                                         if (!i40e_active_tx_ring_index(vsi, i))
2145                                                 continue;
2146                                         i40e_free_tx_resources(&tx_rings[i]);
2147                                 }
2148                                 kfree(tx_rings);
2149                                 tx_rings = NULL;
2150
2151                                 goto done;
2152                         }
2153                 }
2154         }
2155
2156         /* alloc updated Rx resources */
2157         if (new_rx_count != vsi->rx_rings[0]->count) {
2158                 netdev_info(netdev,
2159                             "Changing Rx descriptor count from %d to %d\n",
2160                             vsi->rx_rings[0]->count, new_rx_count);
2161                 rx_rings = kcalloc(vsi->alloc_queue_pairs,
2162                                    sizeof(struct i40e_ring), GFP_KERNEL);
2163                 if (!rx_rings) {
2164                         err = -ENOMEM;
2165                         goto free_tx;
2166                 }
2167
2168                 for (i = 0; i < vsi->num_queue_pairs; i++) {
2169                         u16 unused;
2170
2171                         /* clone ring and setup updated count */
2172                         rx_rings[i] = *vsi->rx_rings[i];
2173                         rx_rings[i].count = new_rx_count;
2174                         /* the desc and bi pointers will be reallocated in the
2175                          * setup call
2176                          */
2177                         rx_rings[i].desc = NULL;
2178                         rx_rings[i].rx_bi = NULL;
2179                         /* Clear cloned XDP RX-queue info before setup call */
2180                         memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq));
2181                         /* this is to allow wr32 to have something to write to
2182                          * during early allocation of Rx buffers
2183                          */
2184                         rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS;
2185                         err = i40e_setup_rx_descriptors(&rx_rings[i]);
2186                         if (err)
2187                                 goto rx_unwind;
2188
2189                         /* now allocate the Rx buffers to make sure the OS
2190                          * has enough memory, any failure here means abort
2191                          */
2192                         unused = I40E_DESC_UNUSED(&rx_rings[i]);
2193                         err = i40e_alloc_rx_buffers(&rx_rings[i], unused);
2194 rx_unwind:
2195                         if (err) {
2196                                 do {
2197                                         i40e_free_rx_resources(&rx_rings[i]);
2198                                 } while (i--);
2199                                 kfree(rx_rings);
2200                                 rx_rings = NULL;
2201
2202                                 goto free_tx;
2203                         }
2204                 }
2205         }
2206
2207         /* Bring interface down, copy in the new ring info,
2208          * then restore the interface
2209          */
2210         i40e_down(vsi);
2211
2212         if (tx_rings) {
2213                 for (i = 0; i < tx_alloc_queue_pairs; i++) {
2214                         if (i40e_active_tx_ring_index(vsi, i)) {
2215                                 i40e_free_tx_resources(vsi->tx_rings[i]);
2216                                 *vsi->tx_rings[i] = tx_rings[i];
2217                         }
2218                 }
2219                 kfree(tx_rings);
2220                 tx_rings = NULL;
2221         }
2222
2223         if (rx_rings) {
2224                 for (i = 0; i < vsi->num_queue_pairs; i++) {
2225                         i40e_free_rx_resources(vsi->rx_rings[i]);
2226                         /* get the real tail offset */
2227                         rx_rings[i].tail = vsi->rx_rings[i]->tail;
2228                         /* this is to fake out the allocation routine
2229                          * into thinking it has to realloc everything
2230                          * but the recycling logic will let us re-use
2231                          * the buffers allocated above
2232                          */
2233                         rx_rings[i].next_to_use = 0;
2234                         rx_rings[i].next_to_clean = 0;
2235                         rx_rings[i].next_to_alloc = 0;
2236                         /* do a struct copy */
2237                         *vsi->rx_rings[i] = rx_rings[i];
2238                 }
2239                 kfree(rx_rings);
2240                 rx_rings = NULL;
2241         }
2242
2243         vsi->num_tx_desc = new_tx_count;
2244         vsi->num_rx_desc = new_rx_count;
2245         i40e_up(vsi);
2246
2247 free_tx:
2248         /* error cleanup if the Rx allocations failed after getting Tx */
2249         if (tx_rings) {
2250                 for (i = 0; i < tx_alloc_queue_pairs; i++) {
2251                         if (i40e_active_tx_ring_index(vsi, i))
2252                                 i40e_free_tx_resources(vsi->tx_rings[i]);
2253                 }
2254                 kfree(tx_rings);
2255                 tx_rings = NULL;
2256         }
2257
2258 done:
2259         clear_bit(__I40E_CONFIG_BUSY, pf->state);
2260
2261         return err;
2262 }
2263
2264 /**
2265  * i40e_get_stats_count - return the stats count for a device
2266  * @netdev: the netdev to return the count for
2267  *
2268  * Returns the total number of statistics for this netdev. Note that even
2269  * though this is a function, it is required that the count for a specific
2270  * netdev must never change. Basing the count on static values such as the
2271  * maximum number of queues or the device type is ok. However, the API for
2272  * obtaining stats is *not* safe against changes based on non-static
2273  * values such as the *current* number of queues, or runtime flags.
2274  *
2275  * If a statistic is not always enabled, return it as part of the count
2276  * anyways, always return its string, and report its value as zero.
2277  **/
2278 static int i40e_get_stats_count(struct net_device *netdev)
2279 {
2280         struct i40e_netdev_priv *np = netdev_priv(netdev);
2281         struct i40e_vsi *vsi = np->vsi;
2282         struct i40e_pf *pf = vsi->back;
2283         int stats_len;
2284
2285         if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1)
2286                 stats_len = I40E_PF_STATS_LEN;
2287         else
2288                 stats_len = I40E_VSI_STATS_LEN;
2289
2290         /* The number of stats reported for a given net_device must remain
2291          * constant throughout the life of that device.
2292          *
2293          * This is because the API for obtaining the size, strings, and stats
2294          * is spread out over three separate ethtool ioctls. There is no safe
2295          * way to lock the number of stats across these calls, so we must
2296          * assume that they will never change.
2297          *
2298          * Due to this, we report the maximum number of queues, even if not
2299          * every queue is currently configured. Since we always allocate
2300          * queues in pairs, we'll just use netdev->num_tx_queues * 2. This
2301          * works because the num_tx_queues is set at device creation and never
2302          * changes.
2303          */
2304         stats_len += I40E_QUEUE_STATS_LEN * 2 * netdev->num_tx_queues;
2305
2306         return stats_len;
2307 }
2308
2309 static int i40e_get_sset_count(struct net_device *netdev, int sset)
2310 {
2311         struct i40e_netdev_priv *np = netdev_priv(netdev);
2312         struct i40e_vsi *vsi = np->vsi;
2313         struct i40e_pf *pf = vsi->back;
2314
2315         switch (sset) {
2316         case ETH_SS_TEST:
2317                 return I40E_TEST_LEN;
2318         case ETH_SS_STATS:
2319                 return i40e_get_stats_count(netdev);
2320         case ETH_SS_PRIV_FLAGS:
2321                 return I40E_PRIV_FLAGS_STR_LEN +
2322                         (pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0);
2323         default:
2324                 return -EOPNOTSUPP;
2325         }
2326 }
2327
2328 /**
2329  * i40e_get_veb_tc_stats - copy VEB TC statistics to formatted structure
2330  * @tc: the TC statistics in VEB structure (veb->tc_stats)
2331  * @i: the index of traffic class in (veb->tc_stats) structure to copy
2332  *
2333  * Copy VEB TC statistics from structure of arrays (veb->tc_stats) to
2334  * one dimensional structure i40e_cp_veb_tc_stats.
2335  * Produce formatted i40e_cp_veb_tc_stats structure of the VEB TC
2336  * statistics for the given TC.
2337  **/
2338 static struct i40e_cp_veb_tc_stats
2339 i40e_get_veb_tc_stats(struct i40e_veb_tc_stats *tc, unsigned int i)
2340 {
2341         struct i40e_cp_veb_tc_stats veb_tc = {
2342                 .tc_rx_packets = tc->tc_rx_packets[i],
2343                 .tc_rx_bytes = tc->tc_rx_bytes[i],
2344                 .tc_tx_packets = tc->tc_tx_packets[i],
2345                 .tc_tx_bytes = tc->tc_tx_bytes[i],
2346         };
2347
2348         return veb_tc;
2349 }
2350
2351 /**
2352  * i40e_get_pfc_stats - copy HW PFC statistics to formatted structure
2353  * @pf: the PF device structure
2354  * @i: the priority value to copy
2355  *
2356  * The PFC stats are found as arrays in pf->stats, which is not easy to pass
2357  * into i40e_add_ethtool_stats. Produce a formatted i40e_pfc_stats structure
2358  * of the PFC stats for the given priority.
2359  **/
2360 static inline struct i40e_pfc_stats
2361 i40e_get_pfc_stats(struct i40e_pf *pf, unsigned int i)
2362 {
2363 #define I40E_GET_PFC_STAT(stat, priority) \
2364         .stat = pf->stats.stat[priority]
2365
2366         struct i40e_pfc_stats pfc = {
2367                 I40E_GET_PFC_STAT(priority_xon_rx, i),
2368                 I40E_GET_PFC_STAT(priority_xoff_rx, i),
2369                 I40E_GET_PFC_STAT(priority_xon_tx, i),
2370                 I40E_GET_PFC_STAT(priority_xoff_tx, i),
2371                 I40E_GET_PFC_STAT(priority_xon_2_xoff, i),
2372         };
2373         return pfc;
2374 }
2375
2376 /**
2377  * i40e_get_ethtool_stats - copy stat values into supplied buffer
2378  * @netdev: the netdev to collect stats for
2379  * @stats: ethtool stats command structure
2380  * @data: ethtool supplied buffer
2381  *
2382  * Copy the stats values for this netdev into the buffer. Expects data to be
2383  * pre-allocated to the size returned by i40e_get_stats_count.. Note that all
2384  * statistics must be copied in a static order, and the count must not change
2385  * for a given netdev. See i40e_get_stats_count for more details.
2386  *
2387  * If a statistic is not currently valid (such as a disabled queue), this
2388  * function reports its value as zero.
2389  **/
2390 static void i40e_get_ethtool_stats(struct net_device *netdev,
2391                                    struct ethtool_stats *stats, u64 *data)
2392 {
2393         struct i40e_netdev_priv *np = netdev_priv(netdev);
2394         struct i40e_vsi *vsi = np->vsi;
2395         struct i40e_pf *pf = vsi->back;
2396         struct i40e_veb *veb = NULL;
2397         unsigned int i;
2398         bool veb_stats;
2399         u64 *p = data;
2400
2401         i40e_update_stats(vsi);
2402
2403         i40e_add_ethtool_stats(&data, i40e_get_vsi_stats_struct(vsi),
2404                                i40e_gstrings_net_stats);
2405
2406         i40e_add_ethtool_stats(&data, vsi, i40e_gstrings_misc_stats);
2407
2408         rcu_read_lock();
2409         for (i = 0; i < netdev->num_tx_queues; i++) {
2410                 i40e_add_queue_stats(&data, READ_ONCE(vsi->tx_rings[i]));
2411                 i40e_add_queue_stats(&data, READ_ONCE(vsi->rx_rings[i]));
2412         }
2413         rcu_read_unlock();
2414
2415         if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
2416                 goto check_data_pointer;
2417
2418         veb_stats = ((pf->lan_veb != I40E_NO_VEB) &&
2419                      (pf->lan_veb < I40E_MAX_VEB) &&
2420                      (pf->flags & I40E_FLAG_VEB_STATS_ENABLED));
2421
2422         if (veb_stats) {
2423                 veb = pf->veb[pf->lan_veb];
2424                 i40e_update_veb_stats(veb);
2425         }
2426
2427         /* If veb stats aren't enabled, pass NULL instead of the veb so that
2428          * we initialize stats to zero and update the data pointer
2429          * intelligently
2430          */
2431         i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL,
2432                                i40e_gstrings_veb_stats);
2433
2434         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
2435                 if (veb_stats) {
2436                         struct i40e_cp_veb_tc_stats veb_tc =
2437                                 i40e_get_veb_tc_stats(&veb->tc_stats, i);
2438
2439                         i40e_add_ethtool_stats(&data, &veb_tc,
2440                                                i40e_gstrings_veb_tc_stats);
2441                 } else {
2442                         i40e_add_ethtool_stats(&data, NULL,
2443                                                i40e_gstrings_veb_tc_stats);
2444                 }
2445
2446         i40e_add_ethtool_stats(&data, pf, i40e_gstrings_stats);
2447
2448         for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
2449                 struct i40e_pfc_stats pfc = i40e_get_pfc_stats(pf, i);
2450
2451                 i40e_add_ethtool_stats(&data, &pfc, i40e_gstrings_pfc_stats);
2452         }
2453
2454 check_data_pointer:
2455         WARN_ONCE(data - p != i40e_get_stats_count(netdev),
2456                   "ethtool stats count mismatch!");
2457 }
2458
2459 /**
2460  * i40e_get_stat_strings - copy stat strings into supplied buffer
2461  * @netdev: the netdev to collect strings for
2462  * @data: supplied buffer to copy strings into
2463  *
2464  * Copy the strings related to stats for this netdev. Expects data to be
2465  * pre-allocated with the size reported by i40e_get_stats_count. Note that the
2466  * strings must be copied in a static order and the total count must not
2467  * change for a given netdev. See i40e_get_stats_count for more details.
2468  **/
2469 static void i40e_get_stat_strings(struct net_device *netdev, u8 *data)
2470 {
2471         struct i40e_netdev_priv *np = netdev_priv(netdev);
2472         struct i40e_vsi *vsi = np->vsi;
2473         struct i40e_pf *pf = vsi->back;
2474         unsigned int i;
2475         u8 *p = data;
2476
2477         i40e_add_stat_strings(&data, i40e_gstrings_net_stats);
2478
2479         i40e_add_stat_strings(&data, i40e_gstrings_misc_stats);
2480
2481         for (i = 0; i < netdev->num_tx_queues; i++) {
2482                 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats,
2483                                       "tx", i);
2484                 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats,
2485                                       "rx", i);
2486         }
2487
2488         if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
2489                 goto check_data_pointer;
2490
2491         i40e_add_stat_strings(&data, i40e_gstrings_veb_stats);
2492
2493         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
2494                 i40e_add_stat_strings(&data, i40e_gstrings_veb_tc_stats, i);
2495
2496         i40e_add_stat_strings(&data, i40e_gstrings_stats);
2497
2498         for (i = 0; i < I40E_MAX_USER_PRIORITY; i++)
2499                 i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i);
2500
2501 check_data_pointer:
2502         WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN,
2503                   "stat strings count mismatch!");
2504 }
2505
2506 static void i40e_get_priv_flag_strings(struct net_device *netdev, u8 *data)
2507 {
2508         struct i40e_netdev_priv *np = netdev_priv(netdev);
2509         struct i40e_vsi *vsi = np->vsi;
2510         struct i40e_pf *pf = vsi->back;
2511         unsigned int i;
2512         u8 *p = data;
2513
2514         for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++)
2515                 ethtool_sprintf(&p, i40e_gstrings_priv_flags[i].flag_string);
2516         if (pf->hw.pf_id != 0)
2517                 return;
2518         for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++)
2519                 ethtool_sprintf(&p, i40e_gl_gstrings_priv_flags[i].flag_string);
2520 }
2521
2522 static void i40e_get_strings(struct net_device *netdev, u32 stringset,
2523                              u8 *data)
2524 {
2525         switch (stringset) {
2526         case ETH_SS_TEST:
2527                 memcpy(data, i40e_gstrings_test,
2528                        I40E_TEST_LEN * ETH_GSTRING_LEN);
2529                 break;
2530         case ETH_SS_STATS:
2531                 i40e_get_stat_strings(netdev, data);
2532                 break;
2533         case ETH_SS_PRIV_FLAGS:
2534                 i40e_get_priv_flag_strings(netdev, data);
2535                 break;
2536         default:
2537                 break;
2538         }
2539 }
2540
2541 static int i40e_get_ts_info(struct net_device *dev,
2542                             struct ethtool_ts_info *info)
2543 {
2544         struct i40e_pf *pf = i40e_netdev_to_pf(dev);
2545
2546         /* only report HW timestamping if PTP is enabled */
2547         if (!(pf->flags & I40E_FLAG_PTP))
2548                 return ethtool_op_get_ts_info(dev, info);
2549
2550         info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
2551                                 SOF_TIMESTAMPING_RX_SOFTWARE |
2552                                 SOF_TIMESTAMPING_SOFTWARE |
2553                                 SOF_TIMESTAMPING_TX_HARDWARE |
2554                                 SOF_TIMESTAMPING_RX_HARDWARE |
2555                                 SOF_TIMESTAMPING_RAW_HARDWARE;
2556
2557         if (pf->ptp_clock)
2558                 info->phc_index = ptp_clock_index(pf->ptp_clock);
2559         else
2560                 info->phc_index = -1;
2561
2562         info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
2563
2564         info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
2565                            BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
2566                            BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
2567                            BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ);
2568
2569         if (pf->hw_features & I40E_HW_PTP_L4_CAPABLE)
2570                 info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
2571                                     BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
2572                                     BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) |
2573                                     BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
2574                                     BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) |
2575                                     BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
2576                                     BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
2577                                     BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ);
2578
2579         return 0;
2580 }
2581
2582 static u64 i40e_link_test(struct net_device *netdev, u64 *data)
2583 {
2584         struct i40e_netdev_priv *np = netdev_priv(netdev);
2585         struct i40e_pf *pf = np->vsi->back;
2586         bool link_up = false;
2587         int status;
2588
2589         netif_info(pf, hw, netdev, "link test\n");
2590         status = i40e_get_link_status(&pf->hw, &link_up);
2591         if (status) {
2592                 netif_err(pf, drv, netdev, "link query timed out, please retry test\n");
2593                 *data = 1;
2594                 return *data;
2595         }
2596
2597         if (link_up)
2598                 *data = 0;
2599         else
2600                 *data = 1;
2601
2602         return *data;
2603 }
2604
2605 static u64 i40e_reg_test(struct net_device *netdev, u64 *data)
2606 {
2607         struct i40e_netdev_priv *np = netdev_priv(netdev);
2608         struct i40e_pf *pf = np->vsi->back;
2609
2610         netif_info(pf, hw, netdev, "register test\n");
2611         *data = i40e_diag_reg_test(&pf->hw);
2612
2613         return *data;
2614 }
2615
2616 static u64 i40e_eeprom_test(struct net_device *netdev, u64 *data)
2617 {
2618         struct i40e_netdev_priv *np = netdev_priv(netdev);
2619         struct i40e_pf *pf = np->vsi->back;
2620
2621         netif_info(pf, hw, netdev, "eeprom test\n");
2622         *data = i40e_diag_eeprom_test(&pf->hw);
2623
2624         /* forcebly clear the NVM Update state machine */
2625         pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT;
2626
2627         return *data;
2628 }
2629
2630 static u64 i40e_intr_test(struct net_device *netdev, u64 *data)
2631 {
2632         struct i40e_netdev_priv *np = netdev_priv(netdev);
2633         struct i40e_pf *pf = np->vsi->back;
2634         u16 swc_old = pf->sw_int_count;
2635
2636         netif_info(pf, hw, netdev, "interrupt test\n");
2637         wr32(&pf->hw, I40E_PFINT_DYN_CTL0,
2638              (I40E_PFINT_DYN_CTL0_INTENA_MASK |
2639               I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK |
2640               I40E_PFINT_DYN_CTL0_ITR_INDX_MASK |
2641               I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK |
2642               I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK));
2643         usleep_range(1000, 2000);
2644         *data = (swc_old == pf->sw_int_count);
2645
2646         return *data;
2647 }
2648
2649 static inline bool i40e_active_vfs(struct i40e_pf *pf)
2650 {
2651         struct i40e_vf *vfs = pf->vf;
2652         int i;
2653
2654         for (i = 0; i < pf->num_alloc_vfs; i++)
2655                 if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states))
2656                         return true;
2657         return false;
2658 }
2659
2660 static inline bool i40e_active_vmdqs(struct i40e_pf *pf)
2661 {
2662         return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2);
2663 }
2664
2665 static void i40e_diag_test(struct net_device *netdev,
2666                            struct ethtool_test *eth_test, u64 *data)
2667 {
2668         struct i40e_netdev_priv *np = netdev_priv(netdev);
2669         bool if_running = netif_running(netdev);
2670         struct i40e_pf *pf = np->vsi->back;
2671
2672         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
2673                 /* Offline tests */
2674                 netif_info(pf, drv, netdev, "offline testing starting\n");
2675
2676                 set_bit(__I40E_TESTING, pf->state);
2677
2678                 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
2679                     test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) {
2680                         dev_warn(&pf->pdev->dev,
2681                                  "Cannot start offline testing when PF is in reset state.\n");
2682                         goto skip_ol_tests;
2683                 }
2684
2685                 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) {
2686                         dev_warn(&pf->pdev->dev,
2687                                  "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");
2688                         goto skip_ol_tests;
2689                 }
2690
2691                 /* If the device is online then take it offline */
2692                 if (if_running)
2693                         /* indicate we're in test mode */
2694                         i40e_close(netdev);
2695                 else
2696                         /* This reset does not affect link - if it is
2697                          * changed to a type of reset that does affect
2698                          * link then the following link test would have
2699                          * to be moved to before the reset
2700                          */
2701                         i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
2702
2703                 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
2704                         eth_test->flags |= ETH_TEST_FL_FAILED;
2705
2706                 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM]))
2707                         eth_test->flags |= ETH_TEST_FL_FAILED;
2708
2709                 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR]))
2710                         eth_test->flags |= ETH_TEST_FL_FAILED;
2711
2712                 /* run reg test last, a reset is required after it */
2713                 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG]))
2714                         eth_test->flags |= ETH_TEST_FL_FAILED;
2715
2716                 clear_bit(__I40E_TESTING, pf->state);
2717                 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
2718
2719                 if (if_running)
2720                         i40e_open(netdev);
2721         } else {
2722                 /* Online tests */
2723                 netif_info(pf, drv, netdev, "online testing starting\n");
2724
2725                 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
2726                         eth_test->flags |= ETH_TEST_FL_FAILED;
2727
2728                 /* Offline only tests, not run in online; pass by default */
2729                 data[I40E_ETH_TEST_REG] = 0;
2730                 data[I40E_ETH_TEST_EEPROM] = 0;
2731                 data[I40E_ETH_TEST_INTR] = 0;
2732         }
2733
2734         netif_info(pf, drv, netdev, "testing finished\n");
2735         return;
2736
2737 skip_ol_tests:
2738         data[I40E_ETH_TEST_REG]         = 1;
2739         data[I40E_ETH_TEST_EEPROM]      = 1;
2740         data[I40E_ETH_TEST_INTR]        = 1;
2741         data[I40E_ETH_TEST_LINK]        = 1;
2742         eth_test->flags |= ETH_TEST_FL_FAILED;
2743         clear_bit(__I40E_TESTING, pf->state);
2744         netif_info(pf, drv, netdev, "testing failed\n");
2745 }
2746
2747 static void i40e_get_wol(struct net_device *netdev,
2748                          struct ethtool_wolinfo *wol)
2749 {
2750         struct i40e_netdev_priv *np = netdev_priv(netdev);
2751         struct i40e_pf *pf = np->vsi->back;
2752         struct i40e_hw *hw = &pf->hw;
2753         u16 wol_nvm_bits;
2754
2755         /* NVM bit on means WoL disabled for the port */
2756         i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
2757         if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) {
2758                 wol->supported = 0;
2759                 wol->wolopts = 0;
2760         } else {
2761                 wol->supported = WAKE_MAGIC;
2762                 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0);
2763         }
2764 }
2765
2766 /**
2767  * i40e_set_wol - set the WakeOnLAN configuration
2768  * @netdev: the netdev in question
2769  * @wol: the ethtool WoL setting data
2770  **/
2771 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
2772 {
2773         struct i40e_netdev_priv *np = netdev_priv(netdev);
2774         struct i40e_pf *pf = np->vsi->back;
2775         struct i40e_vsi *vsi = np->vsi;
2776         struct i40e_hw *hw = &pf->hw;
2777         u16 wol_nvm_bits;
2778
2779         /* WoL not supported if this isn't the controlling PF on the port */
2780         if (hw->partition_id != 1) {
2781                 i40e_partition_setting_complaint(pf);
2782                 return -EOPNOTSUPP;
2783         }
2784
2785         if (vsi != pf->vsi[pf->lan_vsi])
2786                 return -EOPNOTSUPP;
2787
2788         /* NVM bit on means WoL disabled for the port */
2789         i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
2790         if (BIT(hw->port) & wol_nvm_bits)
2791                 return -EOPNOTSUPP;
2792
2793         /* only magic packet is supported */
2794         if (wol->wolopts & ~WAKE_MAGIC)
2795                 return -EOPNOTSUPP;
2796
2797         /* is this a new value? */
2798         if (pf->wol_en != !!wol->wolopts) {
2799                 pf->wol_en = !!wol->wolopts;
2800                 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en);
2801         }
2802
2803         return 0;
2804 }
2805
2806 static int i40e_set_phys_id(struct net_device *netdev,
2807                             enum ethtool_phys_id_state state)
2808 {
2809         struct i40e_netdev_priv *np = netdev_priv(netdev);
2810         struct i40e_pf *pf = np->vsi->back;
2811         struct i40e_hw *hw = &pf->hw;
2812         int blink_freq = 2;
2813         u16 temp_status;
2814         int ret = 0;
2815
2816         switch (state) {
2817         case ETHTOOL_ID_ACTIVE:
2818                 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) {
2819                         pf->led_status = i40e_led_get(hw);
2820                 } else {
2821                         if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE))
2822                                 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL,
2823                                                       NULL);
2824                         ret = i40e_led_get_phy(hw, &temp_status,
2825                                                &pf->phy_led_val);
2826                         pf->led_status = temp_status;
2827                 }
2828                 return blink_freq;
2829         case ETHTOOL_ID_ON:
2830                 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS))
2831                         i40e_led_set(hw, 0xf, false);
2832                 else
2833                         ret = i40e_led_set_phy(hw, true, pf->led_status, 0);
2834                 break;
2835         case ETHTOOL_ID_OFF:
2836                 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS))
2837                         i40e_led_set(hw, 0x0, false);
2838                 else
2839                         ret = i40e_led_set_phy(hw, false, pf->led_status, 0);
2840                 break;
2841         case ETHTOOL_ID_INACTIVE:
2842                 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) {
2843                         i40e_led_set(hw, pf->led_status, false);
2844                 } else {
2845                         ret = i40e_led_set_phy(hw, false, pf->led_status,
2846                                                (pf->phy_led_val |
2847                                                I40E_PHY_LED_MODE_ORIG));
2848                         if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE))
2849                                 i40e_aq_set_phy_debug(hw, 0, NULL);
2850                 }
2851                 break;
2852         default:
2853                 break;
2854         }
2855         if (ret)
2856                 return -ENOENT;
2857         else
2858                 return 0;
2859 }
2860
2861 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt
2862  * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also
2863  * 125us (8000 interrupts per second) == ITR(62)
2864  */
2865
2866 /**
2867  * __i40e_get_coalesce - get per-queue coalesce settings
2868  * @netdev: the netdev to check
2869  * @ec: ethtool coalesce data structure
2870  * @queue: which queue to pick
2871  *
2872  * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs
2873  * are per queue. If queue is <0 then we default to queue 0 as the
2874  * representative value.
2875  **/
2876 static int __i40e_get_coalesce(struct net_device *netdev,
2877                                struct ethtool_coalesce *ec,
2878                                int queue)
2879 {
2880         struct i40e_netdev_priv *np = netdev_priv(netdev);
2881         struct i40e_ring *rx_ring, *tx_ring;
2882         struct i40e_vsi *vsi = np->vsi;
2883
2884         ec->tx_max_coalesced_frames_irq = vsi->work_limit;
2885         ec->rx_max_coalesced_frames_irq = vsi->work_limit;
2886
2887         /* rx and tx usecs has per queue value. If user doesn't specify the
2888          * queue, return queue 0's value to represent.
2889          */
2890         if (queue < 0)
2891                 queue = 0;
2892         else if (queue >= vsi->num_queue_pairs)
2893                 return -EINVAL;
2894
2895         rx_ring = vsi->rx_rings[queue];
2896         tx_ring = vsi->tx_rings[queue];
2897
2898         if (ITR_IS_DYNAMIC(rx_ring->itr_setting))
2899                 ec->use_adaptive_rx_coalesce = 1;
2900
2901         if (ITR_IS_DYNAMIC(tx_ring->itr_setting))
2902                 ec->use_adaptive_tx_coalesce = 1;
2903
2904         ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
2905         ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
2906
2907         /* we use the _usecs_high to store/set the interrupt rate limit
2908          * that the hardware supports, that almost but not quite
2909          * fits the original intent of the ethtool variable,
2910          * the rx_coalesce_usecs_high limits total interrupts
2911          * per second from both tx/rx sources.
2912          */
2913         ec->rx_coalesce_usecs_high = vsi->int_rate_limit;
2914         ec->tx_coalesce_usecs_high = vsi->int_rate_limit;
2915
2916         return 0;
2917 }
2918
2919 /**
2920  * i40e_get_coalesce - get a netdev's coalesce settings
2921  * @netdev: the netdev to check
2922  * @ec: ethtool coalesce data structure
2923  * @kernel_coal: ethtool CQE mode setting structure
2924  * @extack: extack for reporting error messages
2925  *
2926  * Gets the coalesce settings for a particular netdev. Note that if user has
2927  * modified per-queue settings, this only guarantees to represent queue 0. See
2928  * __i40e_get_coalesce for more details.
2929  **/
2930 static int i40e_get_coalesce(struct net_device *netdev,
2931                              struct ethtool_coalesce *ec,
2932                              struct kernel_ethtool_coalesce *kernel_coal,
2933                              struct netlink_ext_ack *extack)
2934 {
2935         return __i40e_get_coalesce(netdev, ec, -1);
2936 }
2937
2938 /**
2939  * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue
2940  * @netdev: netdev structure
2941  * @ec: ethtool's coalesce settings
2942  * @queue: the particular queue to read
2943  *
2944  * Will read a specific queue's coalesce settings
2945  **/
2946 static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue,
2947                                        struct ethtool_coalesce *ec)
2948 {
2949         return __i40e_get_coalesce(netdev, ec, queue);
2950 }
2951
2952 /**
2953  * i40e_set_itr_per_queue - set ITR values for specific queue
2954  * @vsi: the VSI to set values for
2955  * @ec: coalesce settings from ethtool
2956  * @queue: the queue to modify
2957  *
2958  * Change the ITR settings for a specific queue.
2959  **/
2960 static void i40e_set_itr_per_queue(struct i40e_vsi *vsi,
2961                                    struct ethtool_coalesce *ec,
2962                                    int queue)
2963 {
2964         struct i40e_ring *rx_ring = vsi->rx_rings[queue];
2965         struct i40e_ring *tx_ring = vsi->tx_rings[queue];
2966         struct i40e_pf *pf = vsi->back;
2967         struct i40e_hw *hw = &pf->hw;
2968         struct i40e_q_vector *q_vector;
2969         u16 intrl;
2970
2971         intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit);
2972
2973         rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs);
2974         tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs);
2975
2976         if (ec->use_adaptive_rx_coalesce)
2977                 rx_ring->itr_setting |= I40E_ITR_DYNAMIC;
2978         else
2979                 rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;
2980
2981         if (ec->use_adaptive_tx_coalesce)
2982                 tx_ring->itr_setting |= I40E_ITR_DYNAMIC;
2983         else
2984                 tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;
2985
2986         q_vector = rx_ring->q_vector;
2987         q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting);
2988
2989         q_vector = tx_ring->q_vector;
2990         q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting);
2991
2992         /* The interrupt handler itself will take care of programming
2993          * the Tx and Rx ITR values based on the values we have entered
2994          * into the q_vector, no need to write the values now.
2995          */
2996
2997         wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl);
2998         i40e_flush(hw);
2999 }
3000
3001 /**
3002  * __i40e_set_coalesce - set coalesce settings for particular queue
3003  * @netdev: the netdev to change
3004  * @ec: ethtool coalesce settings
3005  * @queue: the queue to change
3006  *
3007  * Sets the coalesce settings for a particular queue.
3008  **/
3009 static int __i40e_set_coalesce(struct net_device *netdev,
3010                                struct ethtool_coalesce *ec,
3011                                int queue)
3012 {
3013         struct i40e_netdev_priv *np = netdev_priv(netdev);
3014         u16 intrl_reg, cur_rx_itr, cur_tx_itr;
3015         struct i40e_vsi *vsi = np->vsi;
3016         struct i40e_pf *pf = vsi->back;
3017         int i;
3018
3019         if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq)
3020                 vsi->work_limit = ec->tx_max_coalesced_frames_irq;
3021
3022         if (queue < 0) {
3023                 cur_rx_itr = vsi->rx_rings[0]->itr_setting;
3024                 cur_tx_itr = vsi->tx_rings[0]->itr_setting;
3025         } else if (queue < vsi->num_queue_pairs) {
3026                 cur_rx_itr = vsi->rx_rings[queue]->itr_setting;
3027                 cur_tx_itr = vsi->tx_rings[queue]->itr_setting;
3028         } else {
3029                 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n",
3030                            vsi->num_queue_pairs - 1);
3031                 return -EINVAL;
3032         }
3033
3034         cur_tx_itr &= ~I40E_ITR_DYNAMIC;
3035         cur_rx_itr &= ~I40E_ITR_DYNAMIC;
3036
3037         /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */
3038         if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) {
3039                 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n");
3040                 return -EINVAL;
3041         }
3042
3043         if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) {
3044                 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n",
3045                            INTRL_REG_TO_USEC(I40E_MAX_INTRL));
3046                 return -EINVAL;
3047         }
3048
3049         if (ec->rx_coalesce_usecs != cur_rx_itr &&
3050             ec->use_adaptive_rx_coalesce) {
3051                 netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n");
3052                 return -EINVAL;
3053         }
3054
3055         if (ec->rx_coalesce_usecs > I40E_MAX_ITR) {
3056                 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
3057                 return -EINVAL;
3058         }
3059
3060         if (ec->tx_coalesce_usecs != cur_tx_itr &&
3061             ec->use_adaptive_tx_coalesce) {
3062                 netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n");
3063                 return -EINVAL;
3064         }
3065
3066         if (ec->tx_coalesce_usecs > I40E_MAX_ITR) {
3067                 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n");
3068                 return -EINVAL;
3069         }
3070
3071         if (ec->use_adaptive_rx_coalesce && !cur_rx_itr)
3072                 ec->rx_coalesce_usecs = I40E_MIN_ITR;
3073
3074         if (ec->use_adaptive_tx_coalesce && !cur_tx_itr)
3075                 ec->tx_coalesce_usecs = I40E_MIN_ITR;
3076
3077         intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high);
3078         vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg);
3079         if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) {
3080                 netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n",
3081                            vsi->int_rate_limit);
3082         }
3083
3084         /* rx and tx usecs has per queue value. If user doesn't specify the
3085          * queue, apply to all queues.
3086          */
3087         if (queue < 0) {
3088                 for (i = 0; i < vsi->num_queue_pairs; i++)
3089                         i40e_set_itr_per_queue(vsi, ec, i);
3090         } else {
3091                 i40e_set_itr_per_queue(vsi, ec, queue);
3092         }
3093
3094         return 0;
3095 }
3096
3097 /**
3098  * i40e_set_coalesce - set coalesce settings for every queue on the netdev
3099  * @netdev: the netdev to change
3100  * @ec: ethtool coalesce settings
3101  * @kernel_coal: ethtool CQE mode setting structure
3102  * @extack: extack for reporting error messages
3103  *
3104  * This will set each queue to the same coalesce settings.
3105  **/
3106 static int i40e_set_coalesce(struct net_device *netdev,
3107                              struct ethtool_coalesce *ec,
3108                              struct kernel_ethtool_coalesce *kernel_coal,
3109                              struct netlink_ext_ack *extack)
3110 {
3111         return __i40e_set_coalesce(netdev, ec, -1);
3112 }
3113
3114 /**
3115  * i40e_set_per_queue_coalesce - set specific queue's coalesce settings
3116  * @netdev: the netdev to change
3117  * @ec: ethtool's coalesce settings
3118  * @queue: the queue to change
3119  *
3120  * Sets the specified queue's coalesce settings.
3121  **/
3122 static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue,
3123                                        struct ethtool_coalesce *ec)
3124 {
3125         return __i40e_set_coalesce(netdev, ec, queue);
3126 }
3127
3128 /**
3129  * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type
3130  * @pf: pointer to the physical function struct
3131  * @cmd: ethtool rxnfc command
3132  *
3133  * Returns Success if the flow is supported, else Invalid Input.
3134  **/
3135 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd)
3136 {
3137         struct i40e_hw *hw = &pf->hw;
3138         u8 flow_pctype = 0;
3139         u64 i_set = 0;
3140
3141         cmd->data = 0;
3142
3143         switch (cmd->flow_type) {
3144         case TCP_V4_FLOW:
3145                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
3146                 break;
3147         case UDP_V4_FLOW:
3148                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
3149                 break;
3150         case TCP_V6_FLOW:
3151                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
3152                 break;
3153         case UDP_V6_FLOW:
3154                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
3155                 break;
3156         case SCTP_V4_FLOW:
3157         case AH_ESP_V4_FLOW:
3158         case AH_V4_FLOW:
3159         case ESP_V4_FLOW:
3160         case IPV4_FLOW:
3161         case SCTP_V6_FLOW:
3162         case AH_ESP_V6_FLOW:
3163         case AH_V6_FLOW:
3164         case ESP_V6_FLOW:
3165         case IPV6_FLOW:
3166                 /* Default is src/dest for IP, no matter the L4 hashing */
3167                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
3168                 break;
3169         default:
3170                 return -EINVAL;
3171         }
3172
3173         /* Read flow based hash input set register */
3174         if (flow_pctype) {
3175                 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0,
3176                                               flow_pctype)) |
3177                         ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1,
3178                                                flow_pctype)) << 32);
3179         }
3180
3181         /* Process bits of hash input set */
3182         if (i_set) {
3183                 if (i_set & I40E_L4_SRC_MASK)
3184                         cmd->data |= RXH_L4_B_0_1;
3185                 if (i_set & I40E_L4_DST_MASK)
3186                         cmd->data |= RXH_L4_B_2_3;
3187
3188                 if (cmd->flow_type == TCP_V4_FLOW ||
3189                     cmd->flow_type == UDP_V4_FLOW) {
3190                         if (hw->mac.type == I40E_MAC_X722) {
3191                                 if (i_set & I40E_X722_L3_SRC_MASK)
3192                                         cmd->data |= RXH_IP_SRC;
3193                                 if (i_set & I40E_X722_L3_DST_MASK)
3194                                         cmd->data |= RXH_IP_DST;
3195                         } else {
3196                                 if (i_set & I40E_L3_SRC_MASK)
3197                                         cmd->data |= RXH_IP_SRC;
3198                                 if (i_set & I40E_L3_DST_MASK)
3199                                         cmd->data |= RXH_IP_DST;
3200                         }
3201                 } else if (cmd->flow_type == TCP_V6_FLOW ||
3202                           cmd->flow_type == UDP_V6_FLOW) {
3203                         if (i_set & I40E_L3_V6_SRC_MASK)
3204                                 cmd->data |= RXH_IP_SRC;
3205                         if (i_set & I40E_L3_V6_DST_MASK)
3206                                 cmd->data |= RXH_IP_DST;
3207                 }
3208         }
3209
3210         return 0;
3211 }
3212
3213 /**
3214  * i40e_check_mask - Check whether a mask field is set
3215  * @mask: the full mask value
3216  * @field: mask of the field to check
3217  *
3218  * If the given mask is fully set, return positive value. If the mask for the
3219  * field is fully unset, return zero. Otherwise return a negative error code.
3220  **/
3221 static int i40e_check_mask(u64 mask, u64 field)
3222 {
3223         u64 value = mask & field;
3224
3225         if (value == field)
3226                 return 1;
3227         else if (!value)
3228                 return 0;
3229         else
3230                 return -1;
3231 }
3232
3233 /**
3234  * i40e_parse_rx_flow_user_data - Deconstruct user-defined data
3235  * @fsp: pointer to rx flow specification
3236  * @data: pointer to userdef data structure for storage
3237  *
3238  * Read the user-defined data and deconstruct the value into a structure. No
3239  * other code should read the user-defined data, so as to ensure that every
3240  * place consistently reads the value correctly.
3241  *
3242  * The user-defined field is a 64bit Big Endian format value, which we
3243  * deconstruct by reading bits or bit fields from it. Single bit flags shall
3244  * be defined starting from the highest bits, while small bit field values
3245  * shall be defined starting from the lowest bits.
3246  *
3247  * Returns 0 if the data is valid, and non-zero if the userdef data is invalid
3248  * and the filter should be rejected. The data structure will always be
3249  * modified even if FLOW_EXT is not set.
3250  *
3251  **/
3252 static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
3253                                         struct i40e_rx_flow_userdef *data)
3254 {
3255         u64 value, mask;
3256         int valid;
3257
3258         /* Zero memory first so it's always consistent. */
3259         memset(data, 0, sizeof(*data));
3260
3261         if (!(fsp->flow_type & FLOW_EXT))
3262                 return 0;
3263
3264         value = be64_to_cpu(*((__be64 *)fsp->h_ext.data));
3265         mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data));
3266
3267 #define I40E_USERDEF_FLEX_WORD          GENMASK_ULL(15, 0)
3268 #define I40E_USERDEF_FLEX_OFFSET        GENMASK_ULL(31, 16)
3269 #define I40E_USERDEF_FLEX_FILTER        GENMASK_ULL(31, 0)
3270
3271         valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER);
3272         if (valid < 0) {
3273                 return -EINVAL;
3274         } else if (valid) {
3275                 data->flex_word = value & I40E_USERDEF_FLEX_WORD;
3276                 data->flex_offset =
3277                         (value & I40E_USERDEF_FLEX_OFFSET) >> 16;
3278                 data->flex_filter = true;
3279         }
3280
3281         return 0;
3282 }
3283
3284 /**
3285  * i40e_fill_rx_flow_user_data - Fill in user-defined data field
3286  * @fsp: pointer to rx_flow specification
3287  * @data: pointer to return userdef data
3288  *
3289  * Reads the userdef data structure and properly fills in the user defined
3290  * fields of the rx_flow_spec.
3291  **/
3292 static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
3293                                         struct i40e_rx_flow_userdef *data)
3294 {
3295         u64 value = 0, mask = 0;
3296
3297         if (data->flex_filter) {
3298                 value |= data->flex_word;
3299                 value |= (u64)data->flex_offset << 16;
3300                 mask |= I40E_USERDEF_FLEX_FILTER;
3301         }
3302
3303         if (value || mask)
3304                 fsp->flow_type |= FLOW_EXT;
3305
3306         *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value);
3307         *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask);
3308 }
3309
3310 /**
3311  * i40e_get_ethtool_fdir_all - Populates the rule count of a command
3312  * @pf: Pointer to the physical function struct
3313  * @cmd: The command to get or set Rx flow classification rules
3314  * @rule_locs: Array of used rule locations
3315  *
3316  * This function populates both the total and actual rule count of
3317  * the ethtool flow classification command
3318  *
3319  * Returns 0 on success or -EMSGSIZE if entry not found
3320  **/
3321 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf,
3322                                      struct ethtool_rxnfc *cmd,
3323                                      u32 *rule_locs)
3324 {
3325         struct i40e_fdir_filter *rule;
3326         struct hlist_node *node2;
3327         int cnt = 0;
3328
3329         /* report total rule count */
3330         cmd->data = i40e_get_fd_cnt_all(pf);
3331
3332         hlist_for_each_entry_safe(rule, node2,
3333                                   &pf->fdir_filter_list, fdir_node) {
3334                 if (cnt == cmd->rule_cnt)
3335                         return -EMSGSIZE;
3336
3337                 rule_locs[cnt] = rule->fd_id;
3338                 cnt++;
3339         }
3340
3341         cmd->rule_cnt = cnt;
3342
3343         return 0;
3344 }
3345
3346 /**
3347  * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow
3348  * @pf: Pointer to the physical function struct
3349  * @cmd: The command to get or set Rx flow classification rules
3350  *
3351  * This function looks up a filter based on the Rx flow classification
3352  * command and fills the flow spec info for it if found
3353  *
3354  * Returns 0 on success or -EINVAL if filter not found
3355  **/
3356 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf,
3357                                        struct ethtool_rxnfc *cmd)
3358 {
3359         struct ethtool_rx_flow_spec *fsp =
3360                         (struct ethtool_rx_flow_spec *)&cmd->fs;
3361         struct i40e_rx_flow_userdef userdef = {0};
3362         struct i40e_fdir_filter *rule = NULL;
3363         struct hlist_node *node2;
3364         u64 input_set;
3365         u16 index;
3366
3367         hlist_for_each_entry_safe(rule, node2,
3368                                   &pf->fdir_filter_list, fdir_node) {
3369                 if (fsp->location <= rule->fd_id)
3370                         break;
3371         }
3372
3373         if (!rule || fsp->location != rule->fd_id)
3374                 return -EINVAL;
3375
3376         fsp->flow_type = rule->flow_type;
3377         if (fsp->flow_type == IP_USER_FLOW) {
3378                 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
3379                 fsp->h_u.usr_ip4_spec.proto = 0;
3380                 fsp->m_u.usr_ip4_spec.proto = 0;
3381         }
3382
3383         if (fsp->flow_type == IPV6_USER_FLOW ||
3384             fsp->flow_type == UDP_V6_FLOW ||
3385             fsp->flow_type == TCP_V6_FLOW ||
3386             fsp->flow_type == SCTP_V6_FLOW) {
3387                 /* Reverse the src and dest notion, since the HW views them
3388                  * from Tx perspective where as the user expects it from
3389                  * Rx filter view.
3390                  */
3391                 fsp->h_u.tcp_ip6_spec.psrc = rule->dst_port;
3392                 fsp->h_u.tcp_ip6_spec.pdst = rule->src_port;
3393                 memcpy(fsp->h_u.tcp_ip6_spec.ip6dst, rule->src_ip6,
3394                        sizeof(__be32) * 4);
3395                 memcpy(fsp->h_u.tcp_ip6_spec.ip6src, rule->dst_ip6,
3396                        sizeof(__be32) * 4);
3397         } else {
3398                 /* Reverse the src and dest notion, since the HW views them
3399                  * from Tx perspective where as the user expects it from
3400                  * Rx filter view.
3401                  */
3402                 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port;
3403                 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port;
3404                 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip;
3405                 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip;
3406         }
3407
3408         switch (rule->flow_type) {
3409         case SCTP_V4_FLOW:
3410                 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP;
3411                 break;
3412         case TCP_V4_FLOW:
3413                 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
3414                 break;
3415         case UDP_V4_FLOW:
3416                 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
3417                 break;
3418         case SCTP_V6_FLOW:
3419                 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP;
3420                 break;
3421         case TCP_V6_FLOW:
3422                 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
3423                 break;
3424         case UDP_V6_FLOW:
3425                 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
3426                 break;
3427         case IP_USER_FLOW:
3428                 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;
3429                 break;
3430         case IPV6_USER_FLOW:
3431                 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER;
3432                 break;
3433         default:
3434                 /* If we have stored a filter with a flow type not listed here
3435                  * it is almost certainly a driver bug. WARN(), and then
3436                  * assign the input_set as if all fields are enabled to avoid
3437                  * reading unassigned memory.
3438                  */
3439                 WARN(1, "Missing input set index for flow_type %d\n",
3440                      rule->flow_type);
3441                 input_set = 0xFFFFFFFFFFFFFFFFULL;
3442                 goto no_input_set;
3443         }
3444
3445         input_set = i40e_read_fd_input_set(pf, index);
3446
3447 no_input_set:
3448         if (input_set & I40E_L3_V6_SRC_MASK) {
3449                 fsp->m_u.tcp_ip6_spec.ip6src[0] = htonl(0xFFFFFFFF);
3450                 fsp->m_u.tcp_ip6_spec.ip6src[1] = htonl(0xFFFFFFFF);
3451                 fsp->m_u.tcp_ip6_spec.ip6src[2] = htonl(0xFFFFFFFF);
3452                 fsp->m_u.tcp_ip6_spec.ip6src[3] = htonl(0xFFFFFFFF);
3453         }
3454
3455         if (input_set & I40E_L3_V6_DST_MASK) {
3456                 fsp->m_u.tcp_ip6_spec.ip6dst[0] = htonl(0xFFFFFFFF);
3457                 fsp->m_u.tcp_ip6_spec.ip6dst[1] = htonl(0xFFFFFFFF);
3458                 fsp->m_u.tcp_ip6_spec.ip6dst[2] = htonl(0xFFFFFFFF);
3459                 fsp->m_u.tcp_ip6_spec.ip6dst[3] = htonl(0xFFFFFFFF);
3460         }
3461
3462         if (input_set & I40E_L3_SRC_MASK)
3463                 fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF);
3464
3465         if (input_set & I40E_L3_DST_MASK)
3466                 fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF);
3467
3468         if (input_set & I40E_L4_SRC_MASK)
3469                 fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF);
3470
3471         if (input_set & I40E_L4_DST_MASK)
3472                 fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF);
3473
3474         if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET)
3475                 fsp->ring_cookie = RX_CLS_FLOW_DISC;
3476         else
3477                 fsp->ring_cookie = rule->q_index;
3478
3479         if (rule->vlan_tag) {
3480                 fsp->h_ext.vlan_etype = rule->vlan_etype;
3481                 fsp->m_ext.vlan_etype = htons(0xFFFF);
3482                 fsp->h_ext.vlan_tci = rule->vlan_tag;
3483                 fsp->m_ext.vlan_tci = htons(0xFFFF);
3484                 fsp->flow_type |= FLOW_EXT;
3485         }
3486
3487         if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) {
3488                 struct i40e_vsi *vsi;
3489
3490                 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi);
3491                 if (vsi && vsi->type == I40E_VSI_SRIOV) {
3492                         /* VFs are zero-indexed by the driver, but ethtool
3493                          * expects them to be one-indexed, so add one here
3494                          */
3495                         u64 ring_vf = vsi->vf_id + 1;
3496
3497                         ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF;
3498                         fsp->ring_cookie |= ring_vf;
3499                 }
3500         }
3501
3502         if (rule->flex_filter) {
3503                 userdef.flex_filter = true;
3504                 userdef.flex_word = be16_to_cpu(rule->flex_word);
3505                 userdef.flex_offset = rule->flex_offset;
3506         }
3507
3508         i40e_fill_rx_flow_user_data(fsp, &userdef);
3509
3510         return 0;
3511 }
3512
3513 /**
3514  * i40e_get_rxnfc - command to get RX flow classification rules
3515  * @netdev: network interface device structure
3516  * @cmd: ethtool rxnfc command
3517  * @rule_locs: pointer to store rule data
3518  *
3519  * Returns Success if the command is supported.
3520  **/
3521 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
3522                           u32 *rule_locs)
3523 {
3524         struct i40e_netdev_priv *np = netdev_priv(netdev);
3525         struct i40e_vsi *vsi = np->vsi;
3526         struct i40e_pf *pf = vsi->back;
3527         int ret = -EOPNOTSUPP;
3528
3529         switch (cmd->cmd) {
3530         case ETHTOOL_GRXRINGS:
3531                 cmd->data = vsi->rss_size;
3532                 ret = 0;
3533                 break;
3534         case ETHTOOL_GRXFH:
3535                 ret = i40e_get_rss_hash_opts(pf, cmd);
3536                 break;
3537         case ETHTOOL_GRXCLSRLCNT:
3538                 cmd->rule_cnt = pf->fdir_pf_active_filters;
3539                 /* report total rule count */
3540                 cmd->data = i40e_get_fd_cnt_all(pf);
3541                 ret = 0;
3542                 break;
3543         case ETHTOOL_GRXCLSRULE:
3544                 ret = i40e_get_ethtool_fdir_entry(pf, cmd);
3545                 break;
3546         case ETHTOOL_GRXCLSRLALL:
3547                 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs);
3548                 break;
3549         default:
3550                 break;
3551         }
3552
3553         return ret;
3554 }
3555
3556 /**
3557  * i40e_get_rss_hash_bits - Read RSS Hash bits from register
3558  * @hw: hw structure
3559  * @nfc: pointer to user request
3560  * @i_setc: bits currently set
3561  *
3562  * Returns value of bits to be set per user request
3563  **/
3564 static u64 i40e_get_rss_hash_bits(struct i40e_hw *hw,
3565                                   struct ethtool_rxnfc *nfc,
3566                                   u64 i_setc)
3567 {
3568         u64 i_set = i_setc;
3569         u64 src_l3 = 0, dst_l3 = 0;
3570
3571         if (nfc->data & RXH_L4_B_0_1)
3572                 i_set |= I40E_L4_SRC_MASK;
3573         else
3574                 i_set &= ~I40E_L4_SRC_MASK;
3575         if (nfc->data & RXH_L4_B_2_3)
3576                 i_set |= I40E_L4_DST_MASK;
3577         else
3578                 i_set &= ~I40E_L4_DST_MASK;
3579
3580         if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) {
3581                 src_l3 = I40E_L3_V6_SRC_MASK;
3582                 dst_l3 = I40E_L3_V6_DST_MASK;
3583         } else if (nfc->flow_type == TCP_V4_FLOW ||
3584                   nfc->flow_type == UDP_V4_FLOW) {
3585                 if (hw->mac.type == I40E_MAC_X722) {
3586                         src_l3 = I40E_X722_L3_SRC_MASK;
3587                         dst_l3 = I40E_X722_L3_DST_MASK;
3588                 } else {
3589                         src_l3 = I40E_L3_SRC_MASK;
3590                         dst_l3 = I40E_L3_DST_MASK;
3591                 }
3592         } else {
3593                 /* Any other flow type are not supported here */
3594                 return i_set;
3595         }
3596
3597         if (nfc->data & RXH_IP_SRC)
3598                 i_set |= src_l3;
3599         else
3600                 i_set &= ~src_l3;
3601         if (nfc->data & RXH_IP_DST)
3602                 i_set |= dst_l3;
3603         else
3604                 i_set &= ~dst_l3;
3605
3606         return i_set;
3607 }
3608
3609 #define FLOW_PCTYPES_SIZE 64
3610 /**
3611  * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash
3612  * @pf: pointer to the physical function struct
3613  * @nfc: ethtool rxnfc command
3614  *
3615  * Returns Success if the flow input set is supported.
3616  **/
3617 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
3618 {
3619         struct i40e_hw *hw = &pf->hw;
3620         u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) |
3621                    ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32);
3622         DECLARE_BITMAP(flow_pctypes, FLOW_PCTYPES_SIZE);
3623         u64 i_set, i_setc;
3624
3625         bitmap_zero(flow_pctypes, FLOW_PCTYPES_SIZE);
3626
3627         if (pf->flags & I40E_FLAG_MFP_ENABLED) {
3628                 dev_err(&pf->pdev->dev,
3629                         "Change of RSS hash input set is not supported when MFP mode is enabled\n");
3630                 return -EOPNOTSUPP;
3631         }
3632
3633         /* RSS does not support anything other than hashing
3634          * to queues on src and dst IPs and ports
3635          */
3636         if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
3637                           RXH_L4_B_0_1 | RXH_L4_B_2_3))
3638                 return -EINVAL;
3639
3640         switch (nfc->flow_type) {
3641         case TCP_V4_FLOW:
3642                 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_TCP, flow_pctypes);
3643                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3644                         set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK,
3645                                 flow_pctypes);
3646                 break;
3647         case TCP_V6_FLOW:
3648                 set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_TCP, flow_pctypes);
3649                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3650                         set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK,
3651                                 flow_pctypes);
3652                 break;
3653         case UDP_V4_FLOW:
3654                 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_UDP, flow_pctypes);
3655                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) {
3656                         set_bit(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP,
3657                                 flow_pctypes);
3658                         set_bit(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP,
3659                                 flow_pctypes);
3660                 }
3661                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
3662                 break;
3663         case UDP_V6_FLOW:
3664                 set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_UDP, flow_pctypes);
3665                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) {
3666                         set_bit(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP,
3667                                 flow_pctypes);
3668                         set_bit(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP,
3669                                 flow_pctypes);
3670                 }
3671                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
3672                 break;
3673         case AH_ESP_V4_FLOW:
3674         case AH_V4_FLOW:
3675         case ESP_V4_FLOW:
3676         case SCTP_V4_FLOW:
3677                 if ((nfc->data & RXH_L4_B_0_1) ||
3678                     (nfc->data & RXH_L4_B_2_3))
3679                         return -EINVAL;
3680                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);
3681                 break;
3682         case AH_ESP_V6_FLOW:
3683         case AH_V6_FLOW:
3684         case ESP_V6_FLOW:
3685         case SCTP_V6_FLOW:
3686                 if ((nfc->data & RXH_L4_B_0_1) ||
3687                     (nfc->data & RXH_L4_B_2_3))
3688                         return -EINVAL;
3689                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);
3690                 break;
3691         case IPV4_FLOW:
3692                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) |
3693                         BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
3694                 break;
3695         case IPV6_FLOW:
3696                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) |
3697                         BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
3698                 break;
3699         default:
3700                 return -EINVAL;
3701         }
3702
3703         if (bitmap_weight(flow_pctypes, FLOW_PCTYPES_SIZE)) {
3704                 u8 flow_id;
3705
3706                 for_each_set_bit(flow_id, flow_pctypes, FLOW_PCTYPES_SIZE) {
3707                         i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id)) |
3708                                  ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id)) << 32);
3709                         i_set = i40e_get_rss_hash_bits(&pf->hw, nfc, i_setc);
3710
3711                         i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id),
3712                                           (u32)i_set);
3713                         i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id),
3714                                           (u32)(i_set >> 32));
3715                         hena |= BIT_ULL(flow_id);
3716                 }
3717         }
3718
3719         i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena);
3720         i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));
3721         i40e_flush(hw);
3722
3723         return 0;
3724 }
3725
3726 /**
3727  * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry
3728  * @vsi: Pointer to the targeted VSI
3729  * @input: The filter to update or NULL to indicate deletion
3730  * @sw_idx: Software index to the filter
3731  * @cmd: The command to get or set Rx flow classification rules
3732  *
3733  * This function updates (or deletes) a Flow Director entry from
3734  * the hlist of the corresponding PF
3735  *
3736  * Returns 0 on success
3737  **/
3738 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi,
3739                                           struct i40e_fdir_filter *input,
3740                                           u16 sw_idx,
3741                                           struct ethtool_rxnfc *cmd)
3742 {
3743         struct i40e_fdir_filter *rule, *parent;
3744         struct i40e_pf *pf = vsi->back;
3745         struct hlist_node *node2;
3746         int err = -EINVAL;
3747
3748         parent = NULL;
3749         rule = NULL;
3750
3751         hlist_for_each_entry_safe(rule, node2,
3752                                   &pf->fdir_filter_list, fdir_node) {
3753                 /* hash found, or no matching entry */
3754                 if (rule->fd_id >= sw_idx)
3755                         break;
3756                 parent = rule;
3757         }
3758
3759         /* if there is an old rule occupying our place remove it */
3760         if (rule && (rule->fd_id == sw_idx)) {
3761                 /* Remove this rule, since we're either deleting it, or
3762                  * replacing it.
3763                  */
3764                 err = i40e_add_del_fdir(vsi, rule, false);
3765                 hlist_del(&rule->fdir_node);
3766                 kfree(rule);
3767                 pf->fdir_pf_active_filters--;
3768         }
3769
3770         /* If we weren't given an input, this is a delete, so just return the
3771          * error code indicating if there was an entry at the requested slot
3772          */
3773         if (!input)
3774                 return err;
3775
3776         /* Otherwise, install the new rule as requested */
3777         INIT_HLIST_NODE(&input->fdir_node);
3778
3779         /* add filter to the list */
3780         if (parent)
3781                 hlist_add_behind(&input->fdir_node, &parent->fdir_node);
3782         else
3783                 hlist_add_head(&input->fdir_node,
3784                                &pf->fdir_filter_list);
3785
3786         /* update counts */
3787         pf->fdir_pf_active_filters++;
3788
3789         return 0;
3790 }
3791
3792 /**
3793  * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table
3794  * @pf: pointer to PF structure
3795  *
3796  * This function searches the list of filters and determines which FLX_PIT
3797  * entries are still required. It will prune any entries which are no longer
3798  * in use after the deletion.
3799  **/
3800 static void i40e_prune_flex_pit_list(struct i40e_pf *pf)
3801 {
3802         struct i40e_flex_pit *entry, *tmp;
3803         struct i40e_fdir_filter *rule;
3804
3805         /* First, we'll check the l3 table */
3806         list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) {
3807                 bool found = false;
3808
3809                 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) {
3810                         if (rule->flow_type != IP_USER_FLOW)
3811                                 continue;
3812                         if (rule->flex_filter &&
3813                             rule->flex_offset == entry->src_offset) {
3814                                 found = true;
3815                                 break;
3816                         }
3817                 }
3818
3819                 /* If we didn't find the filter, then we can prune this entry
3820                  * from the list.
3821                  */
3822                 if (!found) {
3823                         list_del(&entry->list);
3824                         kfree(entry);
3825                 }
3826         }
3827
3828         /* Followed by the L4 table */
3829         list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) {
3830                 bool found = false;
3831
3832                 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) {
3833                         /* Skip this filter if it's L3, since we already
3834                          * checked those in the above loop
3835                          */
3836                         if (rule->flow_type == IP_USER_FLOW)
3837                                 continue;
3838                         if (rule->flex_filter &&
3839                             rule->flex_offset == entry->src_offset) {
3840                                 found = true;
3841                                 break;
3842                         }
3843                 }
3844
3845                 /* If we didn't find the filter, then we can prune this entry
3846                  * from the list.
3847                  */
3848                 if (!found) {
3849                         list_del(&entry->list);
3850                         kfree(entry);
3851                 }
3852         }
3853 }
3854
3855 /**
3856  * i40e_del_fdir_entry - Deletes a Flow Director filter entry
3857  * @vsi: Pointer to the targeted VSI
3858  * @cmd: The command to get or set Rx flow classification rules
3859  *
3860  * The function removes a Flow Director filter entry from the
3861  * hlist of the corresponding PF
3862  *
3863  * Returns 0 on success
3864  */
3865 static int i40e_del_fdir_entry(struct i40e_vsi *vsi,
3866                                struct ethtool_rxnfc *cmd)
3867 {
3868         struct ethtool_rx_flow_spec *fsp =
3869                 (struct ethtool_rx_flow_spec *)&cmd->fs;
3870         struct i40e_pf *pf = vsi->back;
3871         int ret = 0;
3872
3873         if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
3874             test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
3875                 return -EBUSY;
3876
3877         if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))
3878                 return -EBUSY;
3879
3880         ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd);
3881
3882         i40e_prune_flex_pit_list(pf);
3883
3884         i40e_fdir_check_and_reenable(pf);
3885         return ret;
3886 }
3887
3888 /**
3889  * i40e_unused_pit_index - Find an unused PIT index for given list
3890  * @pf: the PF data structure
3891  *
3892  * Find the first unused flexible PIT index entry. We search both the L3 and
3893  * L4 flexible PIT lists so that the returned index is unique and unused by
3894  * either currently programmed L3 or L4 filters. We use a bit field as storage
3895  * to track which indexes are already used.
3896  **/
3897 static u8 i40e_unused_pit_index(struct i40e_pf *pf)
3898 {
3899         unsigned long available_index = 0xFF;
3900         struct i40e_flex_pit *entry;
3901
3902         /* We need to make sure that the new index isn't in use by either L3
3903          * or L4 filters so that IP_USER_FLOW filters can program both L3 and
3904          * L4 to use the same index.
3905          */
3906
3907         list_for_each_entry(entry, &pf->l4_flex_pit_list, list)
3908                 clear_bit(entry->pit_index, &available_index);
3909
3910         list_for_each_entry(entry, &pf->l3_flex_pit_list, list)
3911                 clear_bit(entry->pit_index, &available_index);
3912
3913         return find_first_bit(&available_index, 8);
3914 }
3915
3916 /**
3917  * i40e_find_flex_offset - Find an existing flex src_offset
3918  * @flex_pit_list: L3 or L4 flex PIT list
3919  * @src_offset: new src_offset to find
3920  *
3921  * Searches the flex_pit_list for an existing offset. If no offset is
3922  * currently programmed, then this will return an ERR_PTR if there is no space
3923  * to add a new offset, otherwise it returns NULL.
3924  **/
3925 static
3926 struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list,
3927                                             u16 src_offset)
3928 {
3929         struct i40e_flex_pit *entry;
3930         int size = 0;
3931
3932         /* Search for the src_offset first. If we find a matching entry
3933          * already programmed, we can simply re-use it.
3934          */
3935         list_for_each_entry(entry, flex_pit_list, list) {
3936                 size++;
3937                 if (entry->src_offset == src_offset)
3938                         return entry;
3939         }
3940
3941         /* If we haven't found an entry yet, then the provided src offset has
3942          * not yet been programmed. We will program the src offset later on,
3943          * but we need to indicate whether there is enough space to do so
3944          * here. We'll make use of ERR_PTR for this purpose.
3945          */
3946         if (size >= I40E_FLEX_PIT_TABLE_SIZE)
3947                 return ERR_PTR(-ENOSPC);
3948
3949         return NULL;
3950 }
3951
3952 /**
3953  * i40e_add_flex_offset - Add src_offset to flex PIT table list
3954  * @flex_pit_list: L3 or L4 flex PIT list
3955  * @src_offset: new src_offset to add
3956  * @pit_index: the PIT index to program
3957  *
3958  * This function programs the new src_offset to the list. It is expected that
3959  * i40e_find_flex_offset has already been tried and returned NULL, indicating
3960  * that this offset is not programmed, and that the list has enough space to
3961  * store another offset.
3962  *
3963  * Returns 0 on success, and negative value on error.
3964  **/
3965 static int i40e_add_flex_offset(struct list_head *flex_pit_list,
3966                                 u16 src_offset,
3967                                 u8 pit_index)
3968 {
3969         struct i40e_flex_pit *new_pit, *entry;
3970
3971         new_pit = kzalloc(sizeof(*entry), GFP_KERNEL);
3972         if (!new_pit)
3973                 return -ENOMEM;
3974
3975         new_pit->src_offset = src_offset;
3976         new_pit->pit_index = pit_index;
3977
3978         /* We need to insert this item such that the list is sorted by
3979          * src_offset in ascending order.
3980          */
3981         list_for_each_entry(entry, flex_pit_list, list) {
3982                 if (new_pit->src_offset < entry->src_offset) {
3983                         list_add_tail(&new_pit->list, &entry->list);
3984                         return 0;
3985                 }
3986
3987                 /* If we found an entry with our offset already programmed we
3988                  * can simply return here, after freeing the memory. However,
3989                  * if the pit_index does not match we need to report an error.
3990                  */
3991                 if (new_pit->src_offset == entry->src_offset) {
3992                         int err = 0;
3993
3994                         /* If the PIT index is not the same we can't re-use
3995                          * the entry, so we must report an error.
3996                          */
3997                         if (new_pit->pit_index != entry->pit_index)
3998                                 err = -EINVAL;
3999
4000                         kfree(new_pit);
4001                         return err;
4002                 }
4003         }
4004
4005         /* If we reached here, then we haven't yet added the item. This means
4006          * that we should add the item at the end of the list.
4007          */
4008         list_add_tail(&new_pit->list, flex_pit_list);
4009         return 0;
4010 }
4011
4012 /**
4013  * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table
4014  * @pf: Pointer to the PF structure
4015  * @flex_pit_list: list of flexible src offsets in use
4016  * @flex_pit_start: index to first entry for this section of the table
4017  *
4018  * In order to handle flexible data, the hardware uses a table of values
4019  * called the FLX_PIT table. This table is used to indicate which sections of
4020  * the input correspond to what PIT index values. Unfortunately, hardware is
4021  * very restrictive about programming this table. Entries must be ordered by
4022  * src_offset in ascending order, without duplicates. Additionally, unused
4023  * entries must be set to the unused index value, and must have valid size and
4024  * length according to the src_offset ordering.
4025  *
4026  * This function will reprogram the FLX_PIT register from a book-keeping
4027  * structure that we guarantee is already ordered correctly, and has no more
4028  * than 3 entries.
4029  *
4030  * To make things easier, we only support flexible values of one word length,
4031  * rather than allowing variable length flexible values.
4032  **/
4033 static void __i40e_reprogram_flex_pit(struct i40e_pf *pf,
4034                                       struct list_head *flex_pit_list,
4035                                       int flex_pit_start)
4036 {
4037         struct i40e_flex_pit *entry = NULL;
4038         u16 last_offset = 0;
4039         int i = 0, j = 0;
4040
4041         /* First, loop over the list of flex PIT entries, and reprogram the
4042          * registers.
4043          */
4044         list_for_each_entry(entry, flex_pit_list, list) {
4045                 /* We have to be careful when programming values for the
4046                  * largest SRC_OFFSET value. It is possible that adding
4047                  * additional empty values at the end would overflow the space
4048                  * for the SRC_OFFSET in the FLX_PIT register. To avoid this,
4049                  * we check here and add the empty values prior to adding the
4050                  * largest value.
4051                  *
4052                  * To determine this, we will use a loop from i+1 to 3, which
4053                  * will determine whether the unused entries would have valid
4054                  * SRC_OFFSET. Note that there cannot be extra entries past
4055                  * this value, because the only valid values would have been
4056                  * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not
4057                  * have been added to the list in the first place.
4058                  */
4059                 for (j = i + 1; j < 3; j++) {
4060                         u16 offset = entry->src_offset + j;
4061                         int index = flex_pit_start + i;
4062                         u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED,
4063                                                        1,
4064                                                        offset - 3);
4065
4066                         if (offset > I40E_MAX_FLEX_SRC_OFFSET) {
4067                                 i40e_write_rx_ctl(&pf->hw,
4068                                                   I40E_PRTQF_FLX_PIT(index),
4069                                                   value);
4070                                 i++;
4071                         }
4072                 }
4073
4074                 /* Now, we can program the actual value into the table */
4075                 i40e_write_rx_ctl(&pf->hw,
4076                                   I40E_PRTQF_FLX_PIT(flex_pit_start + i),
4077                                   I40E_FLEX_PREP_VAL(entry->pit_index + 50,
4078                                                      1,
4079                                                      entry->src_offset));
4080                 i++;
4081         }
4082
4083         /* In order to program the last entries in the table, we need to
4084          * determine the valid offset. If the list is empty, we'll just start
4085          * with 0. Otherwise, we'll start with the last item offset and add 1.
4086          * This ensures that all entries have valid sizes. If we don't do this
4087          * correctly, the hardware will disable flexible field parsing.
4088          */
4089         if (!list_empty(flex_pit_list))
4090                 last_offset = list_prev_entry(entry, list)->src_offset + 1;
4091
4092         for (; i < 3; i++, last_offset++) {
4093                 i40e_write_rx_ctl(&pf->hw,
4094                                   I40E_PRTQF_FLX_PIT(flex_pit_start + i),
4095                                   I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED,
4096                                                      1,
4097                                                      last_offset));
4098         }
4099 }
4100
4101 /**
4102  * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change
4103  * @pf: pointer to the PF structure
4104  *
4105  * This function reprograms both the L3 and L4 FLX_PIT tables. See the
4106  * internal helper function for implementation details.
4107  **/
4108 static void i40e_reprogram_flex_pit(struct i40e_pf *pf)
4109 {
4110         __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list,
4111                                   I40E_FLEX_PIT_IDX_START_L3);
4112
4113         __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list,
4114                                   I40E_FLEX_PIT_IDX_START_L4);
4115
4116         /* We also need to program the L3 and L4 GLQF ORT register */
4117         i40e_write_rx_ctl(&pf->hw,
4118                           I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX),
4119                           I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3,
4120                                             3, 1));
4121
4122         i40e_write_rx_ctl(&pf->hw,
4123                           I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX),
4124                           I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4,
4125                                             3, 1));
4126 }
4127
4128 /**
4129  * i40e_flow_str - Converts a flow_type into a human readable string
4130  * @fsp: the flow specification
4131  *
4132  * Currently only flow types we support are included here, and the string
4133  * value attempts to match what ethtool would use to configure this flow type.
4134  **/
4135 static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp)
4136 {
4137         switch (fsp->flow_type & ~FLOW_EXT) {
4138         case TCP_V4_FLOW:
4139                 return "tcp4";
4140         case UDP_V4_FLOW:
4141                 return "udp4";
4142         case SCTP_V4_FLOW:
4143                 return "sctp4";
4144         case IP_USER_FLOW:
4145                 return "ip4";
4146         case TCP_V6_FLOW:
4147                 return "tcp6";
4148         case UDP_V6_FLOW:
4149                 return "udp6";
4150         case SCTP_V6_FLOW:
4151                 return "sctp6";
4152         case IPV6_USER_FLOW:
4153                 return "ip6";
4154         default:
4155                 return "unknown";
4156         }
4157 }
4158
4159 /**
4160  * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index
4161  * @pit_index: PIT index to convert
4162  *
4163  * Returns the mask for a given PIT index. Will return 0 if the pit_index is
4164  * of range.
4165  **/
4166 static u64 i40e_pit_index_to_mask(int pit_index)
4167 {
4168         switch (pit_index) {
4169         case 0:
4170                 return I40E_FLEX_50_MASK;
4171         case 1:
4172                 return I40E_FLEX_51_MASK;
4173         case 2:
4174                 return I40E_FLEX_52_MASK;
4175         case 3:
4176                 return I40E_FLEX_53_MASK;
4177         case 4:
4178                 return I40E_FLEX_54_MASK;
4179         case 5:
4180                 return I40E_FLEX_55_MASK;
4181         case 6:
4182                 return I40E_FLEX_56_MASK;
4183         case 7:
4184                 return I40E_FLEX_57_MASK;
4185         default:
4186                 return 0;
4187         }
4188 }
4189
4190 /**
4191  * i40e_print_input_set - Show changes between two input sets
4192  * @vsi: the vsi being configured
4193  * @old: the old input set
4194  * @new: the new input set
4195  *
4196  * Print the difference between old and new input sets by showing which series
4197  * of words are toggled on or off. Only displays the bits we actually support
4198  * changing.
4199  **/
4200 static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new)
4201 {
4202         struct i40e_pf *pf = vsi->back;
4203         bool old_value, new_value;
4204         int i;
4205
4206         old_value = !!(old & I40E_L3_SRC_MASK);
4207         new_value = !!(new & I40E_L3_SRC_MASK);
4208         if (old_value != new_value)
4209                 netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n",
4210                            old_value ? "ON" : "OFF",
4211                            new_value ? "ON" : "OFF");
4212
4213         old_value = !!(old & I40E_L3_DST_MASK);
4214         new_value = !!(new & I40E_L3_DST_MASK);
4215         if (old_value != new_value)
4216                 netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n",
4217                            old_value ? "ON" : "OFF",
4218                            new_value ? "ON" : "OFF");
4219
4220         old_value = !!(old & I40E_L4_SRC_MASK);
4221         new_value = !!(new & I40E_L4_SRC_MASK);
4222         if (old_value != new_value)
4223                 netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n",
4224                            old_value ? "ON" : "OFF",
4225                            new_value ? "ON" : "OFF");
4226
4227         old_value = !!(old & I40E_L4_DST_MASK);
4228         new_value = !!(new & I40E_L4_DST_MASK);
4229         if (old_value != new_value)
4230                 netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n",
4231                            old_value ? "ON" : "OFF",
4232                            new_value ? "ON" : "OFF");
4233
4234         old_value = !!(old & I40E_VERIFY_TAG_MASK);
4235         new_value = !!(new & I40E_VERIFY_TAG_MASK);
4236         if (old_value != new_value)
4237                 netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n",
4238                            old_value ? "ON" : "OFF",
4239                            new_value ? "ON" : "OFF");
4240
4241         /* Show change of flexible filter entries */
4242         for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) {
4243                 u64 flex_mask = i40e_pit_index_to_mask(i);
4244
4245                 old_value = !!(old & flex_mask);
4246                 new_value = !!(new & flex_mask);
4247                 if (old_value != new_value)
4248                         netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n",
4249                                    i,
4250                                    old_value ? "ON" : "OFF",
4251                                    new_value ? "ON" : "OFF");
4252         }
4253
4254         netif_info(pf, drv, vsi->netdev, "  Current input set: %0llx\n",
4255                    old);
4256         netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n",
4257                    new);
4258 }
4259
4260 /**
4261  * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid
4262  * @vsi: pointer to the targeted VSI
4263  * @fsp: pointer to Rx flow specification
4264  * @userdef: userdefined data from flow specification
4265  *
4266  * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support
4267  * for partial matches exists with a few limitations. First, hardware only
4268  * supports masking by word boundary (2 bytes) and not per individual bit.
4269  * Second, hardware is limited to using one mask for a flow type and cannot
4270  * use a separate mask for each filter.
4271  *
4272  * To support these limitations, if we already have a configured filter for
4273  * the specified type, this function enforces that new filters of the type
4274  * match the configured input set. Otherwise, if we do not have a filter of
4275  * the specified type, we allow the input set to be updated to match the
4276  * desired filter.
4277  *
4278  * To help ensure that administrators understand why filters weren't displayed
4279  * as supported, we print a diagnostic message displaying how the input set
4280  * would change and warning to delete the preexisting filters if required.
4281  *
4282  * Returns 0 on successful input set match, and a negative return code on
4283  * failure.
4284  **/
4285 static int i40e_check_fdir_input_set(struct i40e_vsi *vsi,
4286                                      struct ethtool_rx_flow_spec *fsp,
4287                                      struct i40e_rx_flow_userdef *userdef)
4288 {
4289         static const __be32 ipv6_full_mask[4] = {cpu_to_be32(0xffffffff),
4290                 cpu_to_be32(0xffffffff), cpu_to_be32(0xffffffff),
4291                 cpu_to_be32(0xffffffff)};
4292         struct ethtool_tcpip6_spec *tcp_ip6_spec;
4293         struct ethtool_usrip6_spec *usr_ip6_spec;
4294         struct ethtool_tcpip4_spec *tcp_ip4_spec;
4295         struct ethtool_usrip4_spec *usr_ip4_spec;
4296         struct i40e_pf *pf = vsi->back;
4297         u64 current_mask, new_mask;
4298         bool new_flex_offset = false;
4299         bool flex_l3 = false;
4300         u16 *fdir_filter_count;
4301         u16 index, src_offset = 0;
4302         u8 pit_index = 0;
4303         int err;
4304
4305         switch (fsp->flow_type & ~FLOW_EXT) {
4306         case SCTP_V4_FLOW:
4307                 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP;
4308                 fdir_filter_count = &pf->fd_sctp4_filter_cnt;
4309                 break;
4310         case TCP_V4_FLOW:
4311                 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
4312                 fdir_filter_count = &pf->fd_tcp4_filter_cnt;
4313                 break;
4314         case UDP_V4_FLOW:
4315                 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
4316                 fdir_filter_count = &pf->fd_udp4_filter_cnt;
4317                 break;
4318         case SCTP_V6_FLOW:
4319                 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP;
4320                 fdir_filter_count = &pf->fd_sctp6_filter_cnt;
4321                 break;
4322         case TCP_V6_FLOW:
4323                 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
4324                 fdir_filter_count = &pf->fd_tcp6_filter_cnt;
4325                 break;
4326         case UDP_V6_FLOW:
4327                 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
4328                 fdir_filter_count = &pf->fd_udp6_filter_cnt;
4329                 break;
4330         case IP_USER_FLOW:
4331                 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;
4332                 fdir_filter_count = &pf->fd_ip4_filter_cnt;
4333                 flex_l3 = true;
4334                 break;
4335         case IPV6_USER_FLOW:
4336                 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER;
4337                 fdir_filter_count = &pf->fd_ip6_filter_cnt;
4338                 flex_l3 = true;
4339                 break;
4340         default:
4341                 return -EOPNOTSUPP;
4342         }
4343
4344         /* Read the current input set from register memory. */
4345         current_mask = i40e_read_fd_input_set(pf, index);
4346         new_mask = current_mask;
4347
4348         /* Determine, if any, the required changes to the input set in order
4349          * to support the provided mask.
4350          *
4351          * Hardware only supports masking at word (2 byte) granularity and does
4352          * not support full bitwise masking. This implementation simplifies
4353          * even further and only supports fully enabled or fully disabled
4354          * masks for each field, even though we could split the ip4src and
4355          * ip4dst fields.
4356          */
4357         switch (fsp->flow_type & ~FLOW_EXT) {
4358         case SCTP_V4_FLOW:
4359                 new_mask &= ~I40E_VERIFY_TAG_MASK;
4360                 fallthrough;
4361         case TCP_V4_FLOW:
4362         case UDP_V4_FLOW:
4363                 tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec;
4364
4365                 /* IPv4 source address */
4366                 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF))
4367                         new_mask |= I40E_L3_SRC_MASK;
4368                 else if (!tcp_ip4_spec->ip4src)
4369                         new_mask &= ~I40E_L3_SRC_MASK;
4370                 else
4371                         return -EOPNOTSUPP;
4372
4373                 /* IPv4 destination address */
4374                 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF))
4375                         new_mask |= I40E_L3_DST_MASK;
4376                 else if (!tcp_ip4_spec->ip4dst)
4377                         new_mask &= ~I40E_L3_DST_MASK;
4378                 else
4379                         return -EOPNOTSUPP;
4380
4381                 /* L4 source port */
4382                 if (tcp_ip4_spec->psrc == htons(0xFFFF))
4383                         new_mask |= I40E_L4_SRC_MASK;
4384                 else if (!tcp_ip4_spec->psrc)
4385                         new_mask &= ~I40E_L4_SRC_MASK;
4386                 else
4387                         return -EOPNOTSUPP;
4388
4389                 /* L4 destination port */
4390                 if (tcp_ip4_spec->pdst == htons(0xFFFF))
4391                         new_mask |= I40E_L4_DST_MASK;
4392                 else if (!tcp_ip4_spec->pdst)
4393                         new_mask &= ~I40E_L4_DST_MASK;
4394                 else
4395                         return -EOPNOTSUPP;
4396
4397                 /* Filtering on Type of Service is not supported. */
4398                 if (tcp_ip4_spec->tos)
4399                         return -EOPNOTSUPP;
4400
4401                 break;
4402         case SCTP_V6_FLOW:
4403                 new_mask &= ~I40E_VERIFY_TAG_MASK;
4404                 fallthrough;
4405         case TCP_V6_FLOW:
4406         case UDP_V6_FLOW:
4407                 tcp_ip6_spec = &fsp->m_u.tcp_ip6_spec;
4408
4409                 /* Check if user provided IPv6 source address. */
4410                 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6src,
4411                                     (struct in6_addr *)&ipv6_full_mask))
4412                         new_mask |= I40E_L3_V6_SRC_MASK;
4413                 else if (ipv6_addr_any((struct in6_addr *)
4414                                        &tcp_ip6_spec->ip6src))
4415                         new_mask &= ~I40E_L3_V6_SRC_MASK;
4416                 else
4417                         return -EOPNOTSUPP;
4418
4419                 /* Check if user provided destination address. */
4420                 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6dst,
4421                                     (struct in6_addr *)&ipv6_full_mask))
4422                         new_mask |= I40E_L3_V6_DST_MASK;
4423                 else if (ipv6_addr_any((struct in6_addr *)
4424                                        &tcp_ip6_spec->ip6dst))
4425                         new_mask &= ~I40E_L3_V6_DST_MASK;
4426                 else
4427                         return -EOPNOTSUPP;
4428
4429                 /* L4 source port */
4430                 if (tcp_ip6_spec->psrc == htons(0xFFFF))
4431                         new_mask |= I40E_L4_SRC_MASK;
4432                 else if (!tcp_ip6_spec->psrc)
4433                         new_mask &= ~I40E_L4_SRC_MASK;
4434                 else
4435                         return -EOPNOTSUPP;
4436
4437                 /* L4 destination port */
4438                 if (tcp_ip6_spec->pdst == htons(0xFFFF))
4439                         new_mask |= I40E_L4_DST_MASK;
4440                 else if (!tcp_ip6_spec->pdst)
4441                         new_mask &= ~I40E_L4_DST_MASK;
4442                 else
4443                         return -EOPNOTSUPP;
4444
4445                 /* Filtering on Traffic Classes is not supported. */
4446                 if (tcp_ip6_spec->tclass)
4447                         return -EOPNOTSUPP;
4448                 break;
4449         case IP_USER_FLOW:
4450                 usr_ip4_spec = &fsp->m_u.usr_ip4_spec;
4451
4452                 /* IPv4 source address */
4453                 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF))
4454                         new_mask |= I40E_L3_SRC_MASK;
4455                 else if (!usr_ip4_spec->ip4src)
4456                         new_mask &= ~I40E_L3_SRC_MASK;
4457                 else
4458                         return -EOPNOTSUPP;
4459
4460                 /* IPv4 destination address */
4461                 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF))
4462                         new_mask |= I40E_L3_DST_MASK;
4463                 else if (!usr_ip4_spec->ip4dst)
4464                         new_mask &= ~I40E_L3_DST_MASK;
4465                 else
4466                         return -EOPNOTSUPP;
4467
4468                 /* First 4 bytes of L4 header */
4469                 if (usr_ip4_spec->l4_4_bytes)
4470                         return -EOPNOTSUPP;
4471
4472                 /* Filtering on Type of Service is not supported. */
4473                 if (usr_ip4_spec->tos)
4474                         return -EOPNOTSUPP;
4475
4476                 /* Filtering on IP version is not supported */
4477                 if (usr_ip4_spec->ip_ver)
4478                         return -EINVAL;
4479
4480                 /* Filtering on L4 protocol is not supported */
4481                 if (usr_ip4_spec->proto)
4482                         return -EINVAL;
4483
4484                 break;
4485         case IPV6_USER_FLOW:
4486                 usr_ip6_spec = &fsp->m_u.usr_ip6_spec;
4487
4488                 /* Check if user provided IPv6 source address. */
4489                 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6src,
4490                                     (struct in6_addr *)&ipv6_full_mask))
4491                         new_mask |= I40E_L3_V6_SRC_MASK;
4492                 else if (ipv6_addr_any((struct in6_addr *)
4493                                        &usr_ip6_spec->ip6src))
4494                         new_mask &= ~I40E_L3_V6_SRC_MASK;
4495                 else
4496                         return -EOPNOTSUPP;
4497
4498                 /* Check if user provided destination address. */
4499                 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6dst,
4500                                     (struct in6_addr *)&ipv6_full_mask))
4501                         new_mask |= I40E_L3_V6_DST_MASK;
4502                 else if (ipv6_addr_any((struct in6_addr *)
4503                                        &usr_ip6_spec->ip6dst))
4504                         new_mask &= ~I40E_L3_V6_DST_MASK;
4505                 else
4506                         return -EOPNOTSUPP;
4507
4508                 if (usr_ip6_spec->l4_4_bytes)
4509                         return -EOPNOTSUPP;
4510
4511                 /* Filtering on Traffic class is not supported. */
4512                 if (usr_ip6_spec->tclass)
4513                         return -EOPNOTSUPP;
4514
4515                 /* Filtering on L4 protocol is not supported */
4516                 if (usr_ip6_spec->l4_proto)
4517                         return -EINVAL;
4518
4519                 break;
4520         default:
4521                 return -EOPNOTSUPP;
4522         }
4523
4524         if (fsp->flow_type & FLOW_EXT) {
4525                 /* Allow only 802.1Q and no etype defined, as
4526                  * later it's modified to 0x8100
4527                  */
4528                 if (fsp->h_ext.vlan_etype != htons(ETH_P_8021Q) &&
4529                     fsp->h_ext.vlan_etype != 0)
4530                         return -EOPNOTSUPP;
4531                 if (fsp->m_ext.vlan_tci == htons(0xFFFF))
4532                         new_mask |= I40E_VLAN_SRC_MASK;
4533                 else
4534                         new_mask &= ~I40E_VLAN_SRC_MASK;
4535         }
4536
4537         /* First, clear all flexible filter entries */
4538         new_mask &= ~I40E_FLEX_INPUT_MASK;
4539
4540         /* If we have a flexible filter, try to add this offset to the correct
4541          * flexible filter PIT list. Once finished, we can update the mask.
4542          * If the src_offset changed, we will get a new mask value which will
4543          * trigger an input set change.
4544          */
4545         if (userdef->flex_filter) {
4546                 struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL;
4547
4548                 /* Flexible offset must be even, since the flexible payload
4549                  * must be aligned on 2-byte boundary.
4550                  */
4551                 if (userdef->flex_offset & 0x1) {
4552                         dev_warn(&pf->pdev->dev,
4553                                  "Flexible data offset must be 2-byte aligned\n");
4554                         return -EINVAL;
4555                 }
4556
4557                 src_offset = userdef->flex_offset >> 1;
4558
4559                 /* FLX_PIT source offset value is only so large */
4560                 if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) {
4561                         dev_warn(&pf->pdev->dev,
4562                                  "Flexible data must reside within first 64 bytes of the packet payload\n");
4563                         return -EINVAL;
4564                 }
4565
4566                 /* See if this offset has already been programmed. If we get
4567                  * an ERR_PTR, then the filter is not safe to add. Otherwise,
4568                  * if we get a NULL pointer, this means we will need to add
4569                  * the offset.
4570                  */
4571                 flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list,
4572                                                  src_offset);
4573                 if (IS_ERR(flex_pit))
4574                         return PTR_ERR(flex_pit);
4575
4576                 /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown)
4577                  * packet types, and thus we need to program both L3 and L4
4578                  * flexible values. These must have identical flexible index,
4579                  * as otherwise we can't correctly program the input set. So
4580                  * we'll find both an L3 and L4 index and make sure they are
4581                  * the same.
4582                  */
4583                 if (flex_l3) {
4584                         l3_flex_pit =
4585                                 i40e_find_flex_offset(&pf->l3_flex_pit_list,
4586                                                       src_offset);
4587                         if (IS_ERR(l3_flex_pit))
4588                                 return PTR_ERR(l3_flex_pit);
4589
4590                         if (flex_pit) {
4591                                 /* If we already had a matching L4 entry, we
4592                                  * need to make sure that the L3 entry we
4593                                  * obtained uses the same index.
4594                                  */
4595                                 if (l3_flex_pit) {
4596                                         if (l3_flex_pit->pit_index !=
4597                                             flex_pit->pit_index) {
4598                                                 return -EINVAL;
4599                                         }
4600                                 } else {
4601                                         new_flex_offset = true;
4602                                 }
4603                         } else {
4604                                 flex_pit = l3_flex_pit;
4605                         }
4606                 }
4607
4608                 /* If we didn't find an existing flex offset, we need to
4609                  * program a new one. However, we don't immediately program it
4610                  * here because we will wait to program until after we check
4611                  * that it is safe to change the input set.
4612                  */
4613                 if (!flex_pit) {
4614                         new_flex_offset = true;
4615                         pit_index = i40e_unused_pit_index(pf);
4616                 } else {
4617                         pit_index = flex_pit->pit_index;
4618                 }
4619
4620                 /* Update the mask with the new offset */
4621                 new_mask |= i40e_pit_index_to_mask(pit_index);
4622         }
4623
4624         /* If the mask and flexible filter offsets for this filter match the
4625          * currently programmed values we don't need any input set change, so
4626          * this filter is safe to install.
4627          */
4628         if (new_mask == current_mask && !new_flex_offset)
4629                 return 0;
4630
4631         netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n",
4632                    i40e_flow_str(fsp));
4633         i40e_print_input_set(vsi, current_mask, new_mask);
4634         if (new_flex_offset) {
4635                 netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d",
4636                            pit_index, src_offset);
4637         }
4638
4639         /* Hardware input sets are global across multiple ports, so even the
4640          * main port cannot change them when in MFP mode as this would impact
4641          * any filters on the other ports.
4642          */
4643         if (pf->flags & I40E_FLAG_MFP_ENABLED) {
4644                 netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n");
4645                 return -EOPNOTSUPP;
4646         }
4647
4648         /* This filter requires us to update the input set. However, hardware
4649          * only supports one input set per flow type, and does not support
4650          * separate masks for each filter. This means that we can only support
4651          * a single mask for all filters of a specific type.
4652          *
4653          * If we have preexisting filters, they obviously depend on the
4654          * current programmed input set. Display a diagnostic message in this
4655          * case explaining why the filter could not be accepted.
4656          */
4657         if (*fdir_filter_count) {
4658                 netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n",
4659                           i40e_flow_str(fsp),
4660                           *fdir_filter_count);
4661                 return -EOPNOTSUPP;
4662         }
4663
4664         i40e_write_fd_input_set(pf, index, new_mask);
4665
4666         /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented
4667          * frames. If we're programming the input set for IPv4/Other, we also
4668          * need to program the IPv4/Fragmented input set. Since we don't have
4669          * separate support, we'll always assume and enforce that the two flow
4670          * types must have matching input sets.
4671          */
4672         if (index == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER)
4673                 i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4,
4674                                         new_mask);
4675
4676         /* Add the new offset and update table, if necessary */
4677         if (new_flex_offset) {
4678                 err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset,
4679                                            pit_index);
4680                 if (err)
4681                         return err;
4682
4683                 if (flex_l3) {
4684                         err = i40e_add_flex_offset(&pf->l3_flex_pit_list,
4685                                                    src_offset,
4686                                                    pit_index);
4687                         if (err)
4688                                 return err;
4689                 }
4690
4691                 i40e_reprogram_flex_pit(pf);
4692         }
4693
4694         return 0;
4695 }
4696
4697 /**
4698  * i40e_match_fdir_filter - Return true of two filters match
4699  * @a: pointer to filter struct
4700  * @b: pointer to filter struct
4701  *
4702  * Returns true if the two filters match exactly the same criteria. I.e. they
4703  * match the same flow type and have the same parameters. We don't need to
4704  * check any input-set since all filters of the same flow type must use the
4705  * same input set.
4706  **/
4707 static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a,
4708                                    struct i40e_fdir_filter *b)
4709 {
4710         /* The filters do not much if any of these criteria differ. */
4711         if (a->dst_ip != b->dst_ip ||
4712             a->src_ip != b->src_ip ||
4713             a->dst_port != b->dst_port ||
4714             a->src_port != b->src_port ||
4715             a->flow_type != b->flow_type ||
4716             a->ipl4_proto != b->ipl4_proto ||
4717             a->vlan_tag != b->vlan_tag ||
4718             a->vlan_etype != b->vlan_etype)
4719                 return false;
4720
4721         return true;
4722 }
4723
4724 /**
4725  * i40e_disallow_matching_filters - Check that new filters differ
4726  * @vsi: pointer to the targeted VSI
4727  * @input: new filter to check
4728  *
4729  * Due to hardware limitations, it is not possible for two filters that match
4730  * similar criteria to be programmed at the same time. This is true for a few
4731  * reasons:
4732  *
4733  * (a) all filters matching a particular flow type must use the same input
4734  * set, that is they must match the same criteria.
4735  * (b) different flow types will never match the same packet, as the flow type
4736  * is decided by hardware before checking which rules apply.
4737  * (c) hardware has no way to distinguish which order filters apply in.
4738  *
4739  * Due to this, we can't really support using the location data to order
4740  * filters in the hardware parsing. It is technically possible for the user to
4741  * request two filters matching the same criteria but which select different
4742  * queues. In this case, rather than keep both filters in the list, we reject
4743  * the 2nd filter when the user requests adding it.
4744  *
4745  * This avoids needing to track location for programming the filter to
4746  * hardware, and ensures that we avoid some strange scenarios involving
4747  * deleting filters which match the same criteria.
4748  **/
4749 static int i40e_disallow_matching_filters(struct i40e_vsi *vsi,
4750                                           struct i40e_fdir_filter *input)
4751 {
4752         struct i40e_pf *pf = vsi->back;
4753         struct i40e_fdir_filter *rule;
4754         struct hlist_node *node2;
4755
4756         /* Loop through every filter, and check that it doesn't match */
4757         hlist_for_each_entry_safe(rule, node2,
4758                                   &pf->fdir_filter_list, fdir_node) {
4759                 /* Don't check the filters match if they share the same fd_id,
4760                  * since the new filter is actually just updating the target
4761                  * of the old filter.
4762                  */
4763                 if (rule->fd_id == input->fd_id)
4764                         continue;
4765
4766                 /* If any filters match, then print a warning message to the
4767                  * kernel message buffer and bail out.
4768                  */
4769                 if (i40e_match_fdir_filter(rule, input)) {
4770                         dev_warn(&pf->pdev->dev,
4771                                  "Existing user defined filter %d already matches this flow.\n",
4772                                  rule->fd_id);
4773                         return -EINVAL;
4774                 }
4775         }
4776
4777         return 0;
4778 }
4779
4780 /**
4781  * i40e_add_fdir_ethtool - Add/Remove Flow Director filters
4782  * @vsi: pointer to the targeted VSI
4783  * @cmd: command to get or set RX flow classification rules
4784  *
4785  * Add Flow Director filters for a specific flow spec based on their
4786  * protocol.  Returns 0 if the filters were successfully added.
4787  **/
4788 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
4789                                  struct ethtool_rxnfc *cmd)
4790 {
4791         struct i40e_rx_flow_userdef userdef;
4792         struct ethtool_rx_flow_spec *fsp;
4793         struct i40e_fdir_filter *input;
4794         u16 dest_vsi = 0, q_index = 0;
4795         struct i40e_pf *pf;
4796         int ret = -EINVAL;
4797         u8 dest_ctl;
4798
4799         if (!vsi)
4800                 return -EINVAL;
4801         pf = vsi->back;
4802
4803         if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
4804                 return -EOPNOTSUPP;
4805
4806         if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state))
4807                 return -ENOSPC;
4808
4809         if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
4810             test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
4811                 return -EBUSY;
4812
4813         if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))
4814                 return -EBUSY;
4815
4816         fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
4817
4818         /* Parse the user-defined field */
4819         if (i40e_parse_rx_flow_user_data(fsp, &userdef))
4820                 return -EINVAL;
4821
4822         /* Extended MAC field is not supported */
4823         if (fsp->flow_type & FLOW_MAC_EXT)
4824                 return -EINVAL;
4825
4826         ret = i40e_check_fdir_input_set(vsi, fsp, &userdef);
4827         if (ret)
4828                 return ret;
4829
4830         if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort +
4831                               pf->hw.func_caps.fd_filters_guaranteed)) {
4832                 return -EINVAL;
4833         }
4834
4835         /* ring_cookie is either the drop index, or is a mask of the queue
4836          * index and VF id we wish to target.
4837          */
4838         if (fsp->ring_cookie == RX_CLS_FLOW_DISC) {
4839                 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
4840         } else {
4841                 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie);
4842                 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie);
4843
4844                 if (!vf) {
4845                         if (ring >= vsi->num_queue_pairs)
4846                                 return -EINVAL;
4847                         dest_vsi = vsi->id;
4848                 } else {
4849                         /* VFs are zero-indexed, so we subtract one here */
4850                         vf--;
4851
4852                         if (vf >= pf->num_alloc_vfs)
4853                                 return -EINVAL;
4854                         if (ring >= pf->vf[vf].num_queue_pairs)
4855                                 return -EINVAL;
4856                         dest_vsi = pf->vf[vf].lan_vsi_id;
4857                 }
4858                 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
4859                 q_index = ring;
4860         }
4861
4862         input = kzalloc(sizeof(*input), GFP_KERNEL);
4863
4864         if (!input)
4865                 return -ENOMEM;
4866
4867         input->fd_id = fsp->location;
4868         input->q_index = q_index;
4869         input->dest_vsi = dest_vsi;
4870         input->dest_ctl = dest_ctl;
4871         input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID;
4872         input->cnt_index  = I40E_FD_SB_STAT_IDX(pf->hw.pf_id);
4873         input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src;
4874         input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
4875         input->flow_type = fsp->flow_type & ~FLOW_EXT;
4876
4877         input->vlan_etype = fsp->h_ext.vlan_etype;
4878         if (!fsp->m_ext.vlan_etype && fsp->h_ext.vlan_tci)
4879                 input->vlan_etype = cpu_to_be16(ETH_P_8021Q);
4880         if (fsp->m_ext.vlan_tci && input->vlan_etype)
4881                 input->vlan_tag = fsp->h_ext.vlan_tci;
4882         if (input->flow_type == IPV6_USER_FLOW ||
4883             input->flow_type == UDP_V6_FLOW ||
4884             input->flow_type == TCP_V6_FLOW ||
4885             input->flow_type == SCTP_V6_FLOW) {
4886                 /* Reverse the src and dest notion, since the HW expects them
4887                  * to be from Tx perspective where as the input from user is
4888                  * from Rx filter view.
4889                  */
4890                 input->ipl4_proto = fsp->h_u.usr_ip6_spec.l4_proto;
4891                 input->dst_port = fsp->h_u.tcp_ip6_spec.psrc;
4892                 input->src_port = fsp->h_u.tcp_ip6_spec.pdst;
4893                 memcpy(input->dst_ip6, fsp->h_u.ah_ip6_spec.ip6src,
4894                        sizeof(__be32) * 4);
4895                 memcpy(input->src_ip6, fsp->h_u.ah_ip6_spec.ip6dst,
4896                        sizeof(__be32) * 4);
4897         } else {
4898                 /* Reverse the src and dest notion, since the HW expects them
4899                  * to be from Tx perspective where as the input from user is
4900                  * from Rx filter view.
4901                  */
4902                 input->ipl4_proto = fsp->h_u.usr_ip4_spec.proto;
4903                 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc;
4904                 input->src_port = fsp->h_u.tcp_ip4_spec.pdst;
4905                 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src;
4906                 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
4907         }
4908
4909         if (userdef.flex_filter) {
4910                 input->flex_filter = true;
4911                 input->flex_word = cpu_to_be16(userdef.flex_word);
4912                 input->flex_offset = userdef.flex_offset;
4913         }
4914
4915         /* Avoid programming two filters with identical match criteria. */
4916         ret = i40e_disallow_matching_filters(vsi, input);
4917         if (ret)
4918                 goto free_filter_memory;
4919
4920         /* Add the input filter to the fdir_input_list, possibly replacing
4921          * a previous filter. Do not free the input structure after adding it
4922          * to the list as this would cause a use-after-free bug.
4923          */
4924         i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL);
4925         ret = i40e_add_del_fdir(vsi, input, true);
4926         if (ret)
4927                 goto remove_sw_rule;
4928         return 0;
4929
4930 remove_sw_rule:
4931         hlist_del(&input->fdir_node);
4932         pf->fdir_pf_active_filters--;
4933 free_filter_memory:
4934         kfree(input);
4935         return ret;
4936 }
4937
4938 /**
4939  * i40e_set_rxnfc - command to set RX flow classification rules
4940  * @netdev: network interface device structure
4941  * @cmd: ethtool rxnfc command
4942  *
4943  * Returns Success if the command is supported.
4944  **/
4945 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
4946 {
4947         struct i40e_netdev_priv *np = netdev_priv(netdev);
4948         struct i40e_vsi *vsi = np->vsi;
4949         struct i40e_pf *pf = vsi->back;
4950         int ret = -EOPNOTSUPP;
4951
4952         switch (cmd->cmd) {
4953         case ETHTOOL_SRXFH:
4954                 ret = i40e_set_rss_hash_opt(pf, cmd);
4955                 break;
4956         case ETHTOOL_SRXCLSRLINS:
4957                 ret = i40e_add_fdir_ethtool(vsi, cmd);
4958                 break;
4959         case ETHTOOL_SRXCLSRLDEL:
4960                 ret = i40e_del_fdir_entry(vsi, cmd);
4961                 break;
4962         default:
4963                 break;
4964         }
4965
4966         return ret;
4967 }
4968
4969 /**
4970  * i40e_max_channels - get Max number of combined channels supported
4971  * @vsi: vsi pointer
4972  **/
4973 static unsigned int i40e_max_channels(struct i40e_vsi *vsi)
4974 {
4975         /* TODO: This code assumes DCB and FD is disabled for now. */
4976         return vsi->alloc_queue_pairs;
4977 }
4978
4979 /**
4980  * i40e_get_channels - Get the current channels enabled and max supported etc.
4981  * @dev: network interface device structure
4982  * @ch: ethtool channels structure
4983  *
4984  * We don't support separate tx and rx queues as channels. The other count
4985  * represents how many queues are being used for control. max_combined counts
4986  * how many queue pairs we can support. They may not be mapped 1 to 1 with
4987  * q_vectors since we support a lot more queue pairs than q_vectors.
4988  **/
4989 static void i40e_get_channels(struct net_device *dev,
4990                               struct ethtool_channels *ch)
4991 {
4992         struct i40e_netdev_priv *np = netdev_priv(dev);
4993         struct i40e_vsi *vsi = np->vsi;
4994         struct i40e_pf *pf = vsi->back;
4995
4996         /* report maximum channels */
4997         ch->max_combined = i40e_max_channels(vsi);
4998
4999         /* report info for other vector */
5000         ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0;
5001         ch->max_other = ch->other_count;
5002
5003         /* Note: This code assumes DCB is disabled for now. */
5004         ch->combined_count = vsi->num_queue_pairs;
5005 }
5006
5007 /**
5008  * i40e_set_channels - Set the new channels count.
5009  * @dev: network interface device structure
5010  * @ch: ethtool channels structure
5011  *
5012  * The new channels count may not be the same as requested by the user
5013  * since it gets rounded down to a power of 2 value.
5014  **/
5015 static int i40e_set_channels(struct net_device *dev,
5016                              struct ethtool_channels *ch)
5017 {
5018         const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
5019         struct i40e_netdev_priv *np = netdev_priv(dev);
5020         unsigned int count = ch->combined_count;
5021         struct i40e_vsi *vsi = np->vsi;
5022         struct i40e_pf *pf = vsi->back;
5023         struct i40e_fdir_filter *rule;
5024         struct hlist_node *node2;
5025         int new_count;
5026         int err = 0;
5027
5028         /* We do not support setting channels for any other VSI at present */
5029         if (vsi->type != I40E_VSI_MAIN)
5030                 return -EINVAL;
5031
5032         /* We do not support setting channels via ethtool when TCs are
5033          * configured through mqprio
5034          */
5035         if (i40e_is_tc_mqprio_enabled(pf))
5036                 return -EINVAL;
5037
5038         /* verify they are not requesting separate vectors */
5039         if (!count || ch->rx_count || ch->tx_count)
5040                 return -EINVAL;
5041
5042         /* verify other_count has not changed */
5043         if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0))
5044                 return -EINVAL;
5045
5046         /* verify the number of channels does not exceed hardware limits */
5047         if (count > i40e_max_channels(vsi))
5048                 return -EINVAL;
5049
5050         /* verify that the number of channels does not invalidate any current
5051          * flow director rules
5052          */
5053         hlist_for_each_entry_safe(rule, node2,
5054                                   &pf->fdir_filter_list, fdir_node) {
5055                 if (rule->dest_ctl != drop && count <= rule->q_index) {
5056                         dev_warn(&pf->pdev->dev,
5057                                  "Existing user defined filter %d assigns flow to queue %d\n",
5058                                  rule->fd_id, rule->q_index);
5059                         err = -EINVAL;
5060                 }
5061         }
5062
5063         if (err) {
5064                 dev_err(&pf->pdev->dev,
5065                         "Existing filter rules must be deleted to reduce combined channel count to %d\n",
5066                         count);
5067                 return err;
5068         }
5069
5070         /* update feature limits from largest to smallest supported values */
5071         /* TODO: Flow director limit, DCB etc */
5072
5073         /* use rss_reconfig to rebuild with new queue count and update traffic
5074          * class queue mapping
5075          */
5076         new_count = i40e_reconfig_rss_queues(pf, count);
5077         if (new_count > 0)
5078                 return 0;
5079         else
5080                 return -EINVAL;
5081 }
5082
5083 /**
5084  * i40e_get_rxfh_key_size - get the RSS hash key size
5085  * @netdev: network interface device structure
5086  *
5087  * Returns the table size.
5088  **/
5089 static u32 i40e_get_rxfh_key_size(struct net_device *netdev)
5090 {
5091         return I40E_HKEY_ARRAY_SIZE;
5092 }
5093
5094 /**
5095  * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size
5096  * @netdev: network interface device structure
5097  *
5098  * Returns the table size.
5099  **/
5100 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev)
5101 {
5102         return I40E_HLUT_ARRAY_SIZE;
5103 }
5104
5105 /**
5106  * i40e_get_rxfh - get the rx flow hash indirection table
5107  * @netdev: network interface device structure
5108  * @indir: indirection table
5109  * @key: hash key
5110  * @hfunc: hash function
5111  *
5112  * Reads the indirection table directly from the hardware. Returns 0 on
5113  * success.
5114  **/
5115 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
5116                          u8 *hfunc)
5117 {
5118         struct i40e_netdev_priv *np = netdev_priv(netdev);
5119         struct i40e_vsi *vsi = np->vsi;
5120         u8 *lut, *seed = NULL;
5121         int ret;
5122         u16 i;
5123
5124         if (hfunc)
5125                 *hfunc = ETH_RSS_HASH_TOP;
5126
5127         if (!indir)
5128                 return 0;
5129
5130         seed = key;
5131         lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
5132         if (!lut)
5133                 return -ENOMEM;
5134         ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE);
5135         if (ret)
5136                 goto out;
5137         for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
5138                 indir[i] = (u32)(lut[i]);
5139
5140 out:
5141         kfree(lut);
5142
5143         return ret;
5144 }
5145
5146 /**
5147  * i40e_set_rxfh - set the rx flow hash indirection table
5148  * @netdev: network interface device structure
5149  * @indir: indirection table
5150  * @key: hash key
5151  * @hfunc: hash function to use
5152  *
5153  * Returns -EINVAL if the table specifies an invalid queue id, otherwise
5154  * returns 0 after programming the table.
5155  **/
5156 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir,
5157                          const u8 *key, const u8 hfunc)
5158 {
5159         struct i40e_netdev_priv *np = netdev_priv(netdev);
5160         struct i40e_vsi *vsi = np->vsi;
5161         struct i40e_pf *pf = vsi->back;
5162         u8 *seed = NULL;
5163         u16 i;
5164
5165         if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
5166                 return -EOPNOTSUPP;
5167
5168         if (key) {
5169                 if (!vsi->rss_hkey_user) {
5170                         vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE,
5171                                                      GFP_KERNEL);
5172                         if (!vsi->rss_hkey_user)
5173                                 return -ENOMEM;
5174                 }
5175                 memcpy(vsi->rss_hkey_user, key, I40E_HKEY_ARRAY_SIZE);
5176                 seed = vsi->rss_hkey_user;
5177         }
5178         if (!vsi->rss_lut_user) {
5179                 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
5180                 if (!vsi->rss_lut_user)
5181                         return -ENOMEM;
5182         }
5183
5184         /* Each 32 bits pointed by 'indir' is stored with a lut entry */
5185         if (indir)
5186                 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
5187                         vsi->rss_lut_user[i] = (u8)(indir[i]);
5188         else
5189                 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE,
5190                                   vsi->rss_size);
5191
5192         return i40e_config_rss(vsi, seed, vsi->rss_lut_user,
5193                                I40E_HLUT_ARRAY_SIZE);
5194 }
5195
5196 /**
5197  * i40e_get_priv_flags - report device private flags
5198  * @dev: network interface device structure
5199  *
5200  * The get string set count and the string set should be matched for each
5201  * flag returned.  Add new strings for each flag to the i40e_gstrings_priv_flags
5202  * array.
5203  *
5204  * Returns a u32 bitmap of flags.
5205  **/
5206 static u32 i40e_get_priv_flags(struct net_device *dev)
5207 {
5208         struct i40e_netdev_priv *np = netdev_priv(dev);
5209         struct i40e_vsi *vsi = np->vsi;
5210         struct i40e_pf *pf = vsi->back;
5211         u32 i, j, ret_flags = 0;
5212
5213         for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
5214                 const struct i40e_priv_flags *priv_flags;
5215
5216                 priv_flags = &i40e_gstrings_priv_flags[i];
5217
5218                 if (priv_flags->flag & pf->flags)
5219                         ret_flags |= BIT(i);
5220         }
5221
5222         if (pf->hw.pf_id != 0)
5223                 return ret_flags;
5224
5225         for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) {
5226                 const struct i40e_priv_flags *priv_flags;
5227
5228                 priv_flags = &i40e_gl_gstrings_priv_flags[j];
5229
5230                 if (priv_flags->flag & pf->flags)
5231                         ret_flags |= BIT(i + j);
5232         }
5233
5234         return ret_flags;
5235 }
5236
5237 /**
5238  * i40e_set_priv_flags - set private flags
5239  * @dev: network interface device structure
5240  * @flags: bit flags to be set
5241  **/
5242 static int i40e_set_priv_flags(struct net_device *dev, u32 flags)
5243 {
5244         struct i40e_netdev_priv *np = netdev_priv(dev);
5245         u64 orig_flags, new_flags, changed_flags;
5246         enum i40e_admin_queue_err adq_err;
5247         struct i40e_vsi *vsi = np->vsi;
5248         struct i40e_pf *pf = vsi->back;
5249         u32 reset_needed = 0;
5250         int status;
5251         u32 i, j;
5252
5253         orig_flags = READ_ONCE(pf->flags);
5254         new_flags = orig_flags;
5255
5256         for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
5257                 const struct i40e_priv_flags *priv_flags;
5258
5259                 priv_flags = &i40e_gstrings_priv_flags[i];
5260
5261                 if (flags & BIT(i))
5262                         new_flags |= priv_flags->flag;
5263                 else
5264                         new_flags &= ~(priv_flags->flag);
5265
5266                 /* If this is a read-only flag, it can't be changed */
5267                 if (priv_flags->read_only &&
5268                     ((orig_flags ^ new_flags) & ~BIT(i)))
5269                         return -EOPNOTSUPP;
5270         }
5271
5272         if (pf->hw.pf_id != 0)
5273                 goto flags_complete;
5274
5275         for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) {
5276                 const struct i40e_priv_flags *priv_flags;
5277
5278                 priv_flags = &i40e_gl_gstrings_priv_flags[j];
5279
5280                 if (flags & BIT(i + j))
5281                         new_flags |= priv_flags->flag;
5282                 else
5283                         new_flags &= ~(priv_flags->flag);
5284
5285                 /* If this is a read-only flag, it can't be changed */
5286                 if (priv_flags->read_only &&
5287                     ((orig_flags ^ new_flags) & ~BIT(i)))
5288                         return -EOPNOTSUPP;
5289         }
5290
5291 flags_complete:
5292         changed_flags = orig_flags ^ new_flags;
5293
5294         if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP)
5295                 reset_needed = I40E_PF_RESET_AND_REBUILD_FLAG;
5296         if (changed_flags & (I40E_FLAG_VEB_STATS_ENABLED |
5297             I40E_FLAG_LEGACY_RX | I40E_FLAG_SOURCE_PRUNING_DISABLED))
5298                 reset_needed = BIT(__I40E_PF_RESET_REQUESTED);
5299
5300         /* Before we finalize any flag changes, we need to perform some
5301          * checks to ensure that the changes are supported and safe.
5302          */
5303
5304         /* ATR eviction is not supported on all devices */
5305         if ((new_flags & I40E_FLAG_HW_ATR_EVICT_ENABLED) &&
5306             !(pf->hw_features & I40E_HW_ATR_EVICT_CAPABLE))
5307                 return -EOPNOTSUPP;
5308
5309         /* If the driver detected FW LLDP was disabled on init, this flag could
5310          * be set, however we do not support _changing_ the flag:
5311          * - on XL710 if NPAR is enabled or FW API version < 1.7
5312          * - on X722 with FW API version < 1.6
5313          * There are situations where older FW versions/NPAR enabled PFs could
5314          * disable LLDP, however we _must_ not allow the user to enable/disable
5315          * LLDP with this flag on unsupported FW versions.
5316          */
5317         if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) {
5318                 if (!(pf->hw.flags & I40E_HW_FLAG_FW_LLDP_STOPPABLE)) {
5319                         dev_warn(&pf->pdev->dev,
5320                                  "Device does not support changing FW LLDP\n");
5321                         return -EOPNOTSUPP;
5322                 }
5323         }
5324
5325         if (changed_flags & I40E_FLAG_RS_FEC &&
5326             pf->hw.device_id != I40E_DEV_ID_25G_SFP28 &&
5327             pf->hw.device_id != I40E_DEV_ID_25G_B) {
5328                 dev_warn(&pf->pdev->dev,
5329                          "Device does not support changing FEC configuration\n");
5330                 return -EOPNOTSUPP;
5331         }
5332
5333         if (changed_flags & I40E_FLAG_BASE_R_FEC &&
5334             pf->hw.device_id != I40E_DEV_ID_25G_SFP28 &&
5335             pf->hw.device_id != I40E_DEV_ID_25G_B &&
5336             pf->hw.device_id != I40E_DEV_ID_KX_X722) {
5337                 dev_warn(&pf->pdev->dev,
5338                          "Device does not support changing FEC configuration\n");
5339                 return -EOPNOTSUPP;
5340         }
5341
5342         /* Process any additional changes needed as a result of flag changes.
5343          * The changed_flags value reflects the list of bits that were
5344          * changed in the code above.
5345          */
5346
5347         /* Flush current ATR settings if ATR was disabled */
5348         if ((changed_flags & I40E_FLAG_FD_ATR_ENABLED) &&
5349             !(new_flags & I40E_FLAG_FD_ATR_ENABLED)) {
5350                 set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state);
5351                 set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state);
5352         }
5353
5354         if (changed_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT) {
5355                 u16 sw_flags = 0, valid_flags = 0;
5356                 int ret;
5357
5358                 if (!(new_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT))
5359                         sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
5360                 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
5361                 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags,
5362                                                 0, NULL);
5363                 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) {
5364                         dev_info(&pf->pdev->dev,
5365                                  "couldn't set switch config bits, err %pe aq_err %s\n",
5366                                  ERR_PTR(ret),
5367                                  i40e_aq_str(&pf->hw,
5368                                              pf->hw.aq.asq_last_status));
5369                         /* not a fatal problem, just keep going */
5370                 }
5371         }
5372
5373         if ((changed_flags & I40E_FLAG_RS_FEC) ||
5374             (changed_flags & I40E_FLAG_BASE_R_FEC)) {
5375                 u8 fec_cfg = 0;
5376
5377                 if (new_flags & I40E_FLAG_RS_FEC &&
5378                     new_flags & I40E_FLAG_BASE_R_FEC) {
5379                         fec_cfg = I40E_AQ_SET_FEC_AUTO;
5380                 } else if (new_flags & I40E_FLAG_RS_FEC) {
5381                         fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS |
5382                                    I40E_AQ_SET_FEC_ABILITY_RS);
5383                 } else if (new_flags & I40E_FLAG_BASE_R_FEC) {
5384                         fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR |
5385                                    I40E_AQ_SET_FEC_ABILITY_KR);
5386                 }
5387                 if (i40e_set_fec_cfg(dev, fec_cfg))
5388                         dev_warn(&pf->pdev->dev, "Cannot change FEC config\n");
5389         }
5390
5391         if ((changed_flags & I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) &&
5392             (orig_flags & I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED)) {
5393                 dev_err(&pf->pdev->dev,
5394                         "Setting link-down-on-close not supported on this port (because total-port-shutdown is enabled)\n");
5395                 return -EOPNOTSUPP;
5396         }
5397
5398         if ((changed_flags & I40E_FLAG_VF_VLAN_PRUNING) &&
5399             pf->num_alloc_vfs) {
5400                 dev_warn(&pf->pdev->dev,
5401                          "Changing vf-vlan-pruning flag while VF(s) are active is not supported\n");
5402                 return -EOPNOTSUPP;
5403         }
5404
5405         if ((changed_flags & I40E_FLAG_LEGACY_RX) &&
5406             I40E_2K_TOO_SMALL_WITH_PADDING) {
5407                 dev_warn(&pf->pdev->dev,
5408                          "2k Rx buffer is too small to fit standard MTU and skb_shared_info\n");
5409                 return -EOPNOTSUPP;
5410         }
5411
5412         if ((changed_flags & new_flags &
5413              I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) &&
5414             (new_flags & I40E_FLAG_MFP_ENABLED))
5415                 dev_warn(&pf->pdev->dev,
5416                          "Turning on link-down-on-close flag may affect other partitions\n");
5417
5418         if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) {
5419                 if (new_flags & I40E_FLAG_DISABLE_FW_LLDP) {
5420 #ifdef CONFIG_I40E_DCB
5421                         i40e_dcb_sw_default_config(pf);
5422 #endif /* CONFIG_I40E_DCB */
5423                         i40e_aq_cfg_lldp_mib_change_event(&pf->hw, false, NULL);
5424                         i40e_aq_stop_lldp(&pf->hw, true, false, NULL);
5425                 } else {
5426                         status = i40e_aq_start_lldp(&pf->hw, false, NULL);
5427                         if (status) {
5428                                 adq_err = pf->hw.aq.asq_last_status;
5429                                 switch (adq_err) {
5430                                 case I40E_AQ_RC_EEXIST:
5431                                         dev_warn(&pf->pdev->dev,
5432                                                  "FW LLDP agent is already running\n");
5433                                         reset_needed = 0;
5434                                         break;
5435                                 case I40E_AQ_RC_EPERM:
5436                                         dev_warn(&pf->pdev->dev,
5437                                                  "Device configuration forbids SW from starting the LLDP agent.\n");
5438                                         return -EINVAL;
5439                                 case I40E_AQ_RC_EAGAIN:
5440                                         dev_warn(&pf->pdev->dev,
5441                                                  "Stop FW LLDP agent command is still being processed, please try again in a second.\n");
5442                                         return -EBUSY;
5443                                 default:
5444                                         dev_warn(&pf->pdev->dev,
5445                                                  "Starting FW LLDP agent failed: error: %pe, %s\n",
5446                                                  ERR_PTR(status),
5447                                                  i40e_aq_str(&pf->hw,
5448                                                              adq_err));
5449                                         return -EINVAL;
5450                                 }
5451                         }
5452                 }
5453         }
5454
5455         /* Now that we've checked to ensure that the new flags are valid, load
5456          * them into place. Since we only modify flags either (a) during
5457          * initialization or (b) while holding the RTNL lock, we don't need
5458          * anything fancy here.
5459          */
5460         pf->flags = new_flags;
5461
5462         /* Issue reset to cause things to take effect, as additional bits
5463          * are added we will need to create a mask of bits requiring reset
5464          */
5465         if (reset_needed)
5466                 i40e_do_reset(pf, reset_needed, true);
5467
5468         return 0;
5469 }
5470
5471 /**
5472  * i40e_get_module_info - get (Q)SFP+ module type info
5473  * @netdev: network interface device structure
5474  * @modinfo: module EEPROM size and layout information structure
5475  **/
5476 static int i40e_get_module_info(struct net_device *netdev,
5477                                 struct ethtool_modinfo *modinfo)
5478 {
5479         struct i40e_netdev_priv *np = netdev_priv(netdev);
5480         struct i40e_vsi *vsi = np->vsi;
5481         struct i40e_pf *pf = vsi->back;
5482         struct i40e_hw *hw = &pf->hw;
5483         u32 sff8472_comp = 0;
5484         u32 sff8472_swap = 0;
5485         u32 sff8636_rev = 0;
5486         u32 type = 0;
5487         int status;
5488
5489         /* Check if firmware supports reading module EEPROM. */
5490         if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) {
5491                 netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n");
5492                 return -EINVAL;
5493         }
5494
5495         status = i40e_update_link_info(hw);
5496         if (status)
5497                 return -EIO;
5498
5499         if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) {
5500                 netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n");
5501                 return -EINVAL;
5502         }
5503
5504         type = hw->phy.link_info.module_type[0];
5505
5506         switch (type) {
5507         case I40E_MODULE_TYPE_SFP:
5508                 status = i40e_aq_get_phy_register(hw,
5509                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5510                                 I40E_I2C_EEPROM_DEV_ADDR, true,
5511                                 I40E_MODULE_SFF_8472_COMP,
5512                                 &sff8472_comp, NULL);
5513                 if (status)
5514                         return -EIO;
5515
5516                 status = i40e_aq_get_phy_register(hw,
5517                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5518                                 I40E_I2C_EEPROM_DEV_ADDR, true,
5519                                 I40E_MODULE_SFF_8472_SWAP,
5520                                 &sff8472_swap, NULL);
5521                 if (status)
5522                         return -EIO;
5523
5524                 /* Check if the module requires address swap to access
5525                  * the other EEPROM memory page.
5526                  */
5527                 if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) {
5528                         netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n");
5529                         modinfo->type = ETH_MODULE_SFF_8079;
5530                         modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5531                 } else if (sff8472_comp == 0x00) {
5532                         /* Module is not SFF-8472 compliant */
5533                         modinfo->type = ETH_MODULE_SFF_8079;
5534                         modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5535                 } else if (!(sff8472_swap & I40E_MODULE_SFF_DDM_IMPLEMENTED)) {
5536                         /* Module is SFF-8472 compliant but doesn't implement
5537                          * Digital Diagnostic Monitoring (DDM).
5538                          */
5539                         modinfo->type = ETH_MODULE_SFF_8079;
5540                         modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5541                 } else {
5542                         modinfo->type = ETH_MODULE_SFF_8472;
5543                         modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
5544                 }
5545                 break;
5546         case I40E_MODULE_TYPE_QSFP_PLUS:
5547                 /* Read from memory page 0. */
5548                 status = i40e_aq_get_phy_register(hw,
5549                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5550                                 0, true,
5551                                 I40E_MODULE_REVISION_ADDR,
5552                                 &sff8636_rev, NULL);
5553                 if (status)
5554                         return -EIO;
5555                 /* Determine revision compliance byte */
5556                 if (sff8636_rev > 0x02) {
5557                         /* Module is SFF-8636 compliant */
5558                         modinfo->type = ETH_MODULE_SFF_8636;
5559                         modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5560                 } else {
5561                         modinfo->type = ETH_MODULE_SFF_8436;
5562                         modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5563                 }
5564                 break;
5565         case I40E_MODULE_TYPE_QSFP28:
5566                 modinfo->type = ETH_MODULE_SFF_8636;
5567                 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5568                 break;
5569         default:
5570                 netdev_err(vsi->netdev, "Module type unrecognized\n");
5571                 return -EINVAL;
5572         }
5573         return 0;
5574 }
5575
5576 /**
5577  * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents
5578  * @netdev: network interface device structure
5579  * @ee: EEPROM dump request structure
5580  * @data: buffer to be filled with EEPROM contents
5581  **/
5582 static int i40e_get_module_eeprom(struct net_device *netdev,
5583                                   struct ethtool_eeprom *ee,
5584                                   u8 *data)
5585 {
5586         struct i40e_netdev_priv *np = netdev_priv(netdev);
5587         struct i40e_vsi *vsi = np->vsi;
5588         struct i40e_pf *pf = vsi->back;
5589         struct i40e_hw *hw = &pf->hw;
5590         bool is_sfp = false;
5591         u32 value = 0;
5592         int status;
5593         int i;
5594
5595         if (!ee || !ee->len || !data)
5596                 return -EINVAL;
5597
5598         if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP)
5599                 is_sfp = true;
5600
5601         for (i = 0; i < ee->len; i++) {
5602                 u32 offset = i + ee->offset;
5603                 u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0;
5604
5605                 /* Check if we need to access the other memory page */
5606                 if (is_sfp) {
5607                         if (offset >= ETH_MODULE_SFF_8079_LEN) {
5608                                 offset -= ETH_MODULE_SFF_8079_LEN;
5609                                 addr = I40E_I2C_EEPROM_DEV_ADDR2;
5610                         }
5611                 } else {
5612                         while (offset >= ETH_MODULE_SFF_8436_LEN) {
5613                                 /* Compute memory page number and offset. */
5614                                 offset -= ETH_MODULE_SFF_8436_LEN / 2;
5615                                 addr++;
5616                         }
5617                 }
5618
5619                 status = i40e_aq_get_phy_register(hw,
5620                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5621                                 addr, true, offset, &value, NULL);
5622                 if (status)
5623                         return -EIO;
5624                 data[i] = value;
5625         }
5626         return 0;
5627 }
5628
5629 static int i40e_get_eee(struct net_device *netdev, struct ethtool_eee *edata)
5630 {
5631         struct i40e_netdev_priv *np = netdev_priv(netdev);
5632         struct i40e_aq_get_phy_abilities_resp phy_cfg;
5633         struct i40e_vsi *vsi = np->vsi;
5634         struct i40e_pf *pf = vsi->back;
5635         struct i40e_hw *hw = &pf->hw;
5636         int status = 0;
5637
5638         /* Get initial PHY capabilities */
5639         status = i40e_aq_get_phy_capabilities(hw, false, true, &phy_cfg, NULL);
5640         if (status)
5641                 return -EAGAIN;
5642
5643         /* Check whether NIC configuration is compatible with Energy Efficient
5644          * Ethernet (EEE) mode.
5645          */
5646         if (phy_cfg.eee_capability == 0)
5647                 return -EOPNOTSUPP;
5648
5649         edata->supported = SUPPORTED_Autoneg;
5650         edata->lp_advertised = edata->supported;
5651
5652         /* Get current configuration */
5653         status = i40e_aq_get_phy_capabilities(hw, false, false, &phy_cfg, NULL);
5654         if (status)
5655                 return -EAGAIN;
5656
5657         edata->advertised = phy_cfg.eee_capability ? SUPPORTED_Autoneg : 0U;
5658         edata->eee_enabled = !!edata->advertised;
5659         edata->tx_lpi_enabled = pf->stats.tx_lpi_status;
5660
5661         edata->eee_active = pf->stats.tx_lpi_status && pf->stats.rx_lpi_status;
5662
5663         return 0;
5664 }
5665
5666 static int i40e_is_eee_param_supported(struct net_device *netdev,
5667                                        struct ethtool_eee *edata)
5668 {
5669         struct i40e_netdev_priv *np = netdev_priv(netdev);
5670         struct i40e_vsi *vsi = np->vsi;
5671         struct i40e_pf *pf = vsi->back;
5672         struct i40e_ethtool_not_used {
5673                 u32 value;
5674                 const char *name;
5675         } param[] = {
5676                 {edata->advertised & ~SUPPORTED_Autoneg, "advertise"},
5677                 {edata->tx_lpi_timer, "tx-timer"},
5678                 {edata->tx_lpi_enabled != pf->stats.tx_lpi_status, "tx-lpi"}
5679         };
5680         int i;
5681
5682         for (i = 0; i < ARRAY_SIZE(param); i++) {
5683                 if (param[i].value) {
5684                         netdev_info(netdev,
5685                                     "EEE setting %s not supported\n",
5686                                     param[i].name);
5687                         return -EOPNOTSUPP;
5688                 }
5689         }
5690
5691         return 0;
5692 }
5693
5694 static int i40e_set_eee(struct net_device *netdev, struct ethtool_eee *edata)
5695 {
5696         struct i40e_netdev_priv *np = netdev_priv(netdev);
5697         struct i40e_aq_get_phy_abilities_resp abilities;
5698         struct i40e_aq_set_phy_config config;
5699         struct i40e_vsi *vsi = np->vsi;
5700         struct i40e_pf *pf = vsi->back;
5701         struct i40e_hw *hw = &pf->hw;
5702         int status = I40E_SUCCESS;
5703         __le16 eee_capability;
5704
5705         /* Deny parameters we don't support */
5706         if (i40e_is_eee_param_supported(netdev, edata))
5707                 return -EOPNOTSUPP;
5708
5709         /* Get initial PHY capabilities */
5710         status = i40e_aq_get_phy_capabilities(hw, false, true, &abilities,
5711                                               NULL);
5712         if (status)
5713                 return -EAGAIN;
5714
5715         /* Check whether NIC configuration is compatible with Energy Efficient
5716          * Ethernet (EEE) mode.
5717          */
5718         if (abilities.eee_capability == 0)
5719                 return -EOPNOTSUPP;
5720
5721         /* Cache initial EEE capability */
5722         eee_capability = abilities.eee_capability;
5723
5724         /* Get current PHY configuration */
5725         status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
5726                                               NULL);
5727         if (status)
5728                 return -EAGAIN;
5729
5730         /* Cache current PHY configuration */
5731         config.phy_type = abilities.phy_type;
5732         config.phy_type_ext = abilities.phy_type_ext;
5733         config.link_speed = abilities.link_speed;
5734         config.abilities = abilities.abilities |
5735                            I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
5736         config.eeer = abilities.eeer_val;
5737         config.low_power_ctrl = abilities.d3_lpan;
5738         config.fec_config = abilities.fec_cfg_curr_mod_ext_info &
5739                             I40E_AQ_PHY_FEC_CONFIG_MASK;
5740
5741         /* Set desired EEE state */
5742         if (edata->eee_enabled) {
5743                 config.eee_capability = eee_capability;
5744                 config.eeer |= cpu_to_le32(I40E_PRTPM_EEER_TX_LPI_EN_MASK);
5745         } else {
5746                 config.eee_capability = 0;
5747                 config.eeer &= cpu_to_le32(~I40E_PRTPM_EEER_TX_LPI_EN_MASK);
5748         }
5749
5750         /* Apply modified PHY configuration */
5751         status = i40e_aq_set_phy_config(hw, &config, NULL);
5752         if (status)
5753                 return -EAGAIN;
5754
5755         return 0;
5756 }
5757
5758 static const struct ethtool_ops i40e_ethtool_recovery_mode_ops = {
5759         .get_drvinfo            = i40e_get_drvinfo,
5760         .set_eeprom             = i40e_set_eeprom,
5761         .get_eeprom_len         = i40e_get_eeprom_len,
5762         .get_eeprom             = i40e_get_eeprom,
5763 };
5764
5765 static const struct ethtool_ops i40e_ethtool_ops = {
5766         .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
5767                                      ETHTOOL_COALESCE_MAX_FRAMES_IRQ |
5768                                      ETHTOOL_COALESCE_USE_ADAPTIVE |
5769                                      ETHTOOL_COALESCE_RX_USECS_HIGH |
5770                                      ETHTOOL_COALESCE_TX_USECS_HIGH,
5771         .get_drvinfo            = i40e_get_drvinfo,
5772         .get_regs_len           = i40e_get_regs_len,
5773         .get_regs               = i40e_get_regs,
5774         .nway_reset             = i40e_nway_reset,
5775         .get_link               = ethtool_op_get_link,
5776         .get_wol                = i40e_get_wol,
5777         .set_wol                = i40e_set_wol,
5778         .set_eeprom             = i40e_set_eeprom,
5779         .get_eeprom_len         = i40e_get_eeprom_len,
5780         .get_eeprom             = i40e_get_eeprom,
5781         .get_ringparam          = i40e_get_ringparam,
5782         .set_ringparam          = i40e_set_ringparam,
5783         .get_pauseparam         = i40e_get_pauseparam,
5784         .set_pauseparam         = i40e_set_pauseparam,
5785         .get_msglevel           = i40e_get_msglevel,
5786         .set_msglevel           = i40e_set_msglevel,
5787         .get_rxnfc              = i40e_get_rxnfc,
5788         .set_rxnfc              = i40e_set_rxnfc,
5789         .self_test              = i40e_diag_test,
5790         .get_strings            = i40e_get_strings,
5791         .get_eee                = i40e_get_eee,
5792         .set_eee                = i40e_set_eee,
5793         .set_phys_id            = i40e_set_phys_id,
5794         .get_sset_count         = i40e_get_sset_count,
5795         .get_ethtool_stats      = i40e_get_ethtool_stats,
5796         .get_coalesce           = i40e_get_coalesce,
5797         .set_coalesce           = i40e_set_coalesce,
5798         .get_rxfh_key_size      = i40e_get_rxfh_key_size,
5799         .get_rxfh_indir_size    = i40e_get_rxfh_indir_size,
5800         .get_rxfh               = i40e_get_rxfh,
5801         .set_rxfh               = i40e_set_rxfh,
5802         .get_channels           = i40e_get_channels,
5803         .set_channels           = i40e_set_channels,
5804         .get_module_info        = i40e_get_module_info,
5805         .get_module_eeprom      = i40e_get_module_eeprom,
5806         .get_ts_info            = i40e_get_ts_info,
5807         .get_priv_flags         = i40e_get_priv_flags,
5808         .set_priv_flags         = i40e_set_priv_flags,
5809         .get_per_queue_coalesce = i40e_get_per_queue_coalesce,
5810         .set_per_queue_coalesce = i40e_set_per_queue_coalesce,
5811         .get_link_ksettings     = i40e_get_link_ksettings,
5812         .set_link_ksettings     = i40e_set_link_ksettings,
5813         .get_fecparam = i40e_get_fec_param,
5814         .set_fecparam = i40e_set_fec_param,
5815         .flash_device = i40e_ddp_flash,
5816 };
5817
5818 void i40e_set_ethtool_ops(struct net_device *netdev)
5819 {
5820         struct i40e_netdev_priv *np = netdev_priv(netdev);
5821         struct i40e_pf          *pf = np->vsi->back;
5822
5823         if (!test_bit(__I40E_RECOVERY_MODE, pf->state))
5824                 netdev->ethtool_ops = &i40e_ethtool_ops;
5825         else
5826                 netdev->ethtool_ops = &i40e_ethtool_recovery_mode_ops;
5827 }