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_irq, so we can't directly use i40e_add_ethtool_stats.
 158  * Assumes that queue stats are defined in i40e_gstrings_queue_stats. If the
 159  * ring pointer is null, zero out the queue stat values and update the data
 160  * pointer. Otherwise safely copy the stats from the ring into the supplied
 161  * buffer and update the data pointer when finished.
 162  *
 163  * This function expects to be called while under rcu_read_lock().
 164  **/
 165 static void
 166 i40e_add_queue_stats(u64 **data, struct i40e_ring *ring)
 167 {
 168         const unsigned int size = ARRAY_SIZE(i40e_gstrings_queue_stats);
 169         const struct i40e_stats *stats = i40e_gstrings_queue_stats;
 170         unsigned int start;
 171         unsigned int i;
 172
 173         /* To avoid invalid statistics values, ensure that we keep retrying
 174          * the copy until we get a consistent value according to
 175          * u64_stats_fetch_retry_irq. But first, make sure our ring is
 176          * non-null before attempting to access its syncp.
 177          */
 178         do {
 179                 start = !ring ? 0 : u64_stats_fetch_begin_irq(&ring->syncp);
 180                 for (i = 0; i < size; i++) {
 181                         i40e_add_one_ethtool_stat(&(*data)[i], ring,
 182                                                   &stats[i]);
 183                 }
 184         } while (ring && u64_stats_fetch_retry_irq(&ring->syncp, start));
 185
 186         /* Once we successfully copy the stats in, update the data pointer */
 187         *data += size;
 188 }
 189
 190 /**
 191  * __i40e_add_stat_strings - copy stat strings into ethtool buffer
 192  * @p: ethtool supplied buffer
 193  * @stats: stat definitions array
 194  * @size: size of the stats array
 195  *
 196  * Format and copy the strings described by stats into the buffer pointed at
 197  * by p.
 198  **/
 199 static void __i40e_add_stat_strings(u8 **p, const struct i40e_stats stats[],
 200                                     const unsigned int size, ...)
 201 {
 202         unsigned int i;
 203
 204         for (i = 0; i < size; i++) {
 205                 va_list args;
 206
 207                 va_start(args, size);
 208                 vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args);
 209                 *p += ETH_GSTRING_LEN;
 210                 va_end(args);
 211         }
 212 }
 213
 214 /**
 215  * i40e_add_stat_strings - copy stat strings into ethtool buffer
 216  * @p: ethtool supplied buffer
 217  * @stats: stat definitions array
 218  *
 219  * Format and copy the strings described by the const static stats value into
 220  * the buffer pointed at by p.
 221  *
 222  * The parameter @stats is evaluated twice, so parameters with side effects
 223  * should be avoided. Additionally, stats must be an array such that
 224  * ARRAY_SIZE can be called on it.
 225  **/
 226 #define i40e_add_stat_strings(p, stats, ...) \
 227         __i40e_add_stat_strings(p, stats, ARRAY_SIZE(stats), ## __VA_ARGS__)
 228
 229 #define I40E_PF_STAT(_name, _stat) \
 230         I40E_STAT(struct i40e_pf, _name, _stat)
 231 #define I40E_VSI_STAT(_name, _stat) \
 232         I40E_STAT(struct i40e_vsi, _name, _stat)
 233 #define I40E_VEB_STAT(_name, _stat) \
 234         I40E_STAT(struct i40e_veb, _name, _stat)
 235 #define I40E_VEB_TC_STAT(_name, _stat) \
 236         I40E_STAT(struct i40e_cp_veb_tc_stats, _name, _stat)
 237 #define I40E_PFC_STAT(_name, _stat) \
 238         I40E_STAT(struct i40e_pfc_stats, _name, _stat)
 239 #define I40E_QUEUE_STAT(_name, _stat) \
 240         I40E_STAT(struct i40e_ring, _name, _stat)
 241
 242 static const struct i40e_stats i40e_gstrings_net_stats[] = {
 243         I40E_NETDEV_STAT(rx_packets),
 244         I40E_NETDEV_STAT(tx_packets),
 245         I40E_NETDEV_STAT(rx_bytes),
 246         I40E_NETDEV_STAT(tx_bytes),
 247         I40E_NETDEV_STAT(rx_errors),
 248         I40E_NETDEV_STAT(tx_errors),
 249         I40E_NETDEV_STAT(rx_dropped),
 250         I40E_NETDEV_STAT(tx_dropped),
 251         I40E_NETDEV_STAT(collisions),
 252         I40E_NETDEV_STAT(rx_length_errors),
 253         I40E_NETDEV_STAT(rx_crc_errors),
 254 };
 255
 256 static const struct i40e_stats i40e_gstrings_veb_stats[] = {
 257         I40E_VEB_STAT("veb.rx_bytes", stats.rx_bytes),
 258         I40E_VEB_STAT("veb.tx_bytes", stats.tx_bytes),
 259         I40E_VEB_STAT("veb.rx_unicast", stats.rx_unicast),
 260         I40E_VEB_STAT("veb.tx_unicast", stats.tx_unicast),
 261         I40E_VEB_STAT("veb.rx_multicast", stats.rx_multicast),
 262         I40E_VEB_STAT("veb.tx_multicast", stats.tx_multicast),
 263         I40E_VEB_STAT("veb.rx_broadcast", stats.rx_broadcast),
 264         I40E_VEB_STAT("veb.tx_broadcast", stats.tx_broadcast),
 265         I40E_VEB_STAT("veb.rx_discards", stats.rx_discards),
 266         I40E_VEB_STAT("veb.tx_discards", stats.tx_discards),
 267         I40E_VEB_STAT("veb.tx_errors", stats.tx_errors),
 268         I40E_VEB_STAT("veb.rx_unknown_protocol", stats.rx_unknown_protocol),
 269 };
 270
 271 struct i40e_cp_veb_tc_stats {
 272         u64 tc_rx_packets;
 273         u64 tc_rx_bytes;
 274         u64 tc_tx_packets;
 275         u64 tc_tx_bytes;
 276 };
 277
 278 static const struct i40e_stats i40e_gstrings_veb_tc_stats[] = {
 279         I40E_VEB_TC_STAT("veb.tc_%u_tx_packets", tc_tx_packets),
 280         I40E_VEB_TC_STAT("veb.tc_%u_tx_bytes", tc_tx_bytes),
 281         I40E_VEB_TC_STAT("veb.tc_%u_rx_packets", tc_rx_packets),
 282         I40E_VEB_TC_STAT("veb.tc_%u_rx_bytes", tc_rx_bytes),
 283 };
 284
 285 static const struct i40e_stats i40e_gstrings_misc_stats[] = {
 286         I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast),
 287         I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast),
 288         I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast),
 289         I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast),
 290         I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast),
 291         I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast),
 292         I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol),
 293         I40E_VSI_STAT("tx_linearize", tx_linearize),
 294         I40E_VSI_STAT("tx_force_wb", tx_force_wb),
 295         I40E_VSI_STAT("tx_busy", tx_busy),
 296         I40E_VSI_STAT("rx_alloc_fail", rx_buf_failed),
 297         I40E_VSI_STAT("rx_pg_alloc_fail", rx_page_failed),
 298 };
 299
 300 /* These PF_STATs might look like duplicates of some NETDEV_STATs,
 301  * but they are separate.  This device supports Virtualization, and
 302  * as such might have several netdevs supporting VMDq and FCoE going
 303  * through a single port.  The NETDEV_STATs are for individual netdevs
 304  * seen at the top of the stack, and the PF_STATs are for the physical
 305  * function at the bottom of the stack hosting those netdevs.
 306  *
 307  * The PF_STATs are appended to the netdev stats only when ethtool -S
 308  * is queried on the base PF netdev, not on the VMDq or FCoE netdev.
 309  */
 310 static const struct i40e_stats i40e_gstrings_stats[] = {
 311         I40E_PF_STAT("port.rx_bytes", stats.eth.rx_bytes),
 312         I40E_PF_STAT("port.tx_bytes", stats.eth.tx_bytes),
 313         I40E_PF_STAT("port.rx_unicast", stats.eth.rx_unicast),
 314         I40E_PF_STAT("port.tx_unicast", stats.eth.tx_unicast),
 315         I40E_PF_STAT("port.rx_multicast", stats.eth.rx_multicast),
 316         I40E_PF_STAT("port.tx_multicast", stats.eth.tx_multicast),
 317         I40E_PF_STAT("port.rx_broadcast", stats.eth.rx_broadcast),
 318         I40E_PF_STAT("port.tx_broadcast", stats.eth.tx_broadcast),
 319         I40E_PF_STAT("port.tx_errors", stats.eth.tx_errors),
 320         I40E_PF_STAT("port.rx_dropped", stats.eth.rx_discards),
 321         I40E_PF_STAT("port.tx_dropped_link_down", stats.tx_dropped_link_down),
 322         I40E_PF_STAT("port.rx_crc_errors", stats.crc_errors),
 323         I40E_PF_STAT("port.illegal_bytes", stats.illegal_bytes),
 324         I40E_PF_STAT("port.mac_local_faults", stats.mac_local_faults),
 325         I40E_PF_STAT("port.mac_remote_faults", stats.mac_remote_faults),
 326         I40E_PF_STAT("port.tx_timeout", tx_timeout_count),
 327         I40E_PF_STAT("port.rx_csum_bad", hw_csum_rx_error),
 328         I40E_PF_STAT("port.rx_length_errors", stats.rx_length_errors),
 329         I40E_PF_STAT("port.link_xon_rx", stats.link_xon_rx),
 330         I40E_PF_STAT("port.link_xoff_rx", stats.link_xoff_rx),
 331         I40E_PF_STAT("port.link_xon_tx", stats.link_xon_tx),
 332         I40E_PF_STAT("port.link_xoff_tx", stats.link_xoff_tx),
 333         I40E_PF_STAT("port.rx_size_64", stats.rx_size_64),
 334         I40E_PF_STAT("port.rx_size_127", stats.rx_size_127),
 335         I40E_PF_STAT("port.rx_size_255", stats.rx_size_255),
 336         I40E_PF_STAT("port.rx_size_511", stats.rx_size_511),
 337         I40E_PF_STAT("port.rx_size_1023", stats.rx_size_1023),
 338         I40E_PF_STAT("port.rx_size_1522", stats.rx_size_1522),
 339         I40E_PF_STAT("port.rx_size_big", stats.rx_size_big),
 340         I40E_PF_STAT("port.tx_size_64", stats.tx_size_64),
 341         I40E_PF_STAT("port.tx_size_127", stats.tx_size_127),
 342         I40E_PF_STAT("port.tx_size_255", stats.tx_size_255),
 343         I40E_PF_STAT("port.tx_size_511", stats.tx_size_511),
 344         I40E_PF_STAT("port.tx_size_1023", stats.tx_size_1023),
 345         I40E_PF_STAT("port.tx_size_1522", stats.tx_size_1522),
 346         I40E_PF_STAT("port.tx_size_big", stats.tx_size_big),
 347         I40E_PF_STAT("port.rx_undersize", stats.rx_undersize),
 348         I40E_PF_STAT("port.rx_fragments", stats.rx_fragments),
 349         I40E_PF_STAT("port.rx_oversize", stats.rx_oversize),
 350         I40E_PF_STAT("port.rx_jabber", stats.rx_jabber),
 351         I40E_PF_STAT("port.VF_admin_queue_requests", vf_aq_requests),
 352         I40E_PF_STAT("port.arq_overflows", arq_overflows),
 353         I40E_PF_STAT("port.tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
 354         I40E_PF_STAT("port.rx_hwtstamp_cleared", rx_hwtstamp_cleared),
 355         I40E_PF_STAT("port.tx_hwtstamp_skipped", tx_hwtstamp_skipped),
 356         I40E_PF_STAT("port.fdir_flush_cnt", fd_flush_cnt),
 357         I40E_PF_STAT("port.fdir_atr_match", stats.fd_atr_match),
 358         I40E_PF_STAT("port.fdir_atr_tunnel_match", stats.fd_atr_tunnel_match),
 359         I40E_PF_STAT("port.fdir_atr_status", stats.fd_atr_status),
 360         I40E_PF_STAT("port.fdir_sb_match", stats.fd_sb_match),
 361         I40E_PF_STAT("port.fdir_sb_status", stats.fd_sb_status),
 362
 363         /* LPI stats */
 364         I40E_PF_STAT("port.tx_lpi_status", stats.tx_lpi_status),
 365         I40E_PF_STAT("port.rx_lpi_status", stats.rx_lpi_status),
 366         I40E_PF_STAT("port.tx_lpi_count", stats.tx_lpi_count),
 367         I40E_PF_STAT("port.rx_lpi_count", stats.rx_lpi_count),
 368 };
 369
 370 struct i40e_pfc_stats {
 371         u64 priority_xon_rx;
 372         u64 priority_xoff_rx;
 373         u64 priority_xon_tx;
 374         u64 priority_xoff_tx;
 375         u64 priority_xon_2_xoff;
 376 };
 377
 378 static const struct i40e_stats i40e_gstrings_pfc_stats[] = {
 379         I40E_PFC_STAT("port.tx_priority_%u_xon_tx", priority_xon_tx),
 380         I40E_PFC_STAT("port.tx_priority_%u_xoff_tx", priority_xoff_tx),
 381         I40E_PFC_STAT("port.rx_priority_%u_xon_rx", priority_xon_rx),
 382         I40E_PFC_STAT("port.rx_priority_%u_xoff_rx", priority_xoff_rx),
 383         I40E_PFC_STAT("port.rx_priority_%u_xon_2_xoff", priority_xon_2_xoff),
 384 };
 385
 386 #define I40E_NETDEV_STATS_LEN   ARRAY_SIZE(i40e_gstrings_net_stats)
 387
 388 #define I40E_MISC_STATS_LEN     ARRAY_SIZE(i40e_gstrings_misc_stats)
 389
 390 #define I40E_VSI_STATS_LEN      (I40E_NETDEV_STATS_LEN + I40E_MISC_STATS_LEN)
 391
 392 #define I40E_PFC_STATS_LEN      (ARRAY_SIZE(i40e_gstrings_pfc_stats) * \
 393                                  I40E_MAX_USER_PRIORITY)
 394
 395 #define I40E_VEB_STATS_LEN      (ARRAY_SIZE(i40e_gstrings_veb_stats) + \
 396                                  (ARRAY_SIZE(i40e_gstrings_veb_tc_stats) * \
 397                                   I40E_MAX_TRAFFIC_CLASS))
 398
 399 #define I40E_GLOBAL_STATS_LEN   ARRAY_SIZE(i40e_gstrings_stats)
 400
 401 #define I40E_PF_STATS_LEN       (I40E_GLOBAL_STATS_LEN + \
 402                                  I40E_PFC_STATS_LEN + \
 403                                  I40E_VEB_STATS_LEN + \
 404                                  I40E_VSI_STATS_LEN)
 405
 406 /* Length of stats for a single queue */
 407 #define I40E_QUEUE_STATS_LEN    ARRAY_SIZE(i40e_gstrings_queue_stats)
 408
 409 enum i40e_ethtool_test_id {
 410         I40E_ETH_TEST_REG = 0,
 411         I40E_ETH_TEST_EEPROM,
 412         I40E_ETH_TEST_INTR,
 413         I40E_ETH_TEST_LINK,
 414 };
 415
 416 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = {
 417         "Register test  (offline)",
 418         "Eeprom test    (offline)",
 419         "Interrupt test (offline)",
 420         "Link test   (on/offline)"
 421 };
 422
 423 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN)
 424
 425 struct i40e_priv_flags {
 426         char flag_string[ETH_GSTRING_LEN];
 427         u64 flag;
 428         bool read_only;
 429 };
 430
 431 #define I40E_PRIV_FLAG(_name, _flag, _read_only) { \
 432         .flag_string = _name, \
 433         .flag = _flag, \
 434         .read_only = _read_only, \
 435 }
 436
 437 static const struct i40e_priv_flags i40e_gstrings_priv_flags[] = {
 438         /* NOTE: MFP setting cannot be changed */
 439         I40E_PRIV_FLAG("MFP", I40E_FLAG_MFP_ENABLED, 1),
 440         I40E_PRIV_FLAG("total-port-shutdown",
 441                        I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED, 1),
 442         I40E_PRIV_FLAG("LinkPolling", I40E_FLAG_LINK_POLLING_ENABLED, 0),
 443         I40E_PRIV_FLAG("flow-director-atr", I40E_FLAG_FD_ATR_ENABLED, 0),
 444         I40E_PRIV_FLAG("veb-stats", I40E_FLAG_VEB_STATS_ENABLED, 0),
 445         I40E_PRIV_FLAG("hw-atr-eviction", I40E_FLAG_HW_ATR_EVICT_ENABLED, 0),
 446         I40E_PRIV_FLAG("link-down-on-close",
 447                        I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED, 0),
 448         I40E_PRIV_FLAG("legacy-rx", I40E_FLAG_LEGACY_RX, 0),
 449         I40E_PRIV_FLAG("disable-source-pruning",
 450                        I40E_FLAG_SOURCE_PRUNING_DISABLED, 0),
 451         I40E_PRIV_FLAG("disable-fw-lldp", I40E_FLAG_DISABLE_FW_LLDP, 0),
 452         I40E_PRIV_FLAG("rs-fec", I40E_FLAG_RS_FEC, 0),
 453         I40E_PRIV_FLAG("base-r-fec", I40E_FLAG_BASE_R_FEC, 0),
 454 };
 455
 456 #define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gstrings_priv_flags)
 457
 458 /* Private flags with a global effect, restricted to PF 0 */
 459 static const struct i40e_priv_flags i40e_gl_gstrings_priv_flags[] = {
 460         I40E_PRIV_FLAG("vf-true-promisc-support",
 461                        I40E_FLAG_TRUE_PROMISC_SUPPORT, 0),
 462 };
 463
 464 #define I40E_GL_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gl_gstrings_priv_flags)
 465
 466 /**
 467  * i40e_partition_setting_complaint - generic complaint for MFP restriction
 468  * @pf: the PF struct
 469  **/
 470 static void i40e_partition_setting_complaint(struct i40e_pf *pf)
 471 {
 472         dev_info(&pf->pdev->dev,
 473                  "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");
 474 }
 475
 476 /**
 477  * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes
 478  * @pf: PF struct with phy_types
 479  * @ks: ethtool link ksettings struct to fill out
 480  *
 481  **/
 482 static void i40e_phy_type_to_ethtool(struct i40e_pf *pf,
 483                                      struct ethtool_link_ksettings *ks)
 484 {
 485         struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info;
 486         u64 phy_types = pf->hw.phy.phy_types;
 487
 488         ethtool_link_ksettings_zero_link_mode(ks, supported);
 489         ethtool_link_ksettings_zero_link_mode(ks, advertising);
 490
 491         if (phy_types & I40E_CAP_PHY_TYPE_SGMII) {
 492                 ethtool_link_ksettings_add_link_mode(ks, supported,
 493                                                      1000baseT_Full);
 494                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 495                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 496                                                              1000baseT_Full);
 497                 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) {
 498                         ethtool_link_ksettings_add_link_mode(ks, supported,
 499                                                              100baseT_Full);
 500                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 501                                                              100baseT_Full);
 502                 }
 503         }
 504         if (phy_types & I40E_CAP_PHY_TYPE_XAUI ||
 505             phy_types & I40E_CAP_PHY_TYPE_XFI ||
 506             phy_types & I40E_CAP_PHY_TYPE_SFI ||
 507             phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU ||
 508             phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC) {
 509                 ethtool_link_ksettings_add_link_mode(ks, supported,
 510                                                      10000baseT_Full);
 511                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 512                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 513                                                              10000baseT_Full);
 514         }
 515         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_T) {
 516                 ethtool_link_ksettings_add_link_mode(ks, supported,
 517                                                      10000baseT_Full);
 518                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 519                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 520                                                              10000baseT_Full);
 521         }
 522         if (phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T) {
 523                 ethtool_link_ksettings_add_link_mode(ks, supported,
 524                                                      2500baseT_Full);
 525                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB)
 526                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 527                                                              2500baseT_Full);
 528         }
 529         if (phy_types & I40E_CAP_PHY_TYPE_5GBASE_T) {
 530                 ethtool_link_ksettings_add_link_mode(ks, supported,
 531                                                      5000baseT_Full);
 532                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB)
 533                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 534                                                              5000baseT_Full);
 535         }
 536         if (phy_types & I40E_CAP_PHY_TYPE_XLAUI ||
 537             phy_types & I40E_CAP_PHY_TYPE_XLPPI ||
 538             phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC)
 539                 ethtool_link_ksettings_add_link_mode(ks, supported,
 540                                                      40000baseCR4_Full);
 541         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
 542             phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) {
 543                 ethtool_link_ksettings_add_link_mode(ks, supported,
 544                                                      40000baseCR4_Full);
 545                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB)
 546                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 547                                                              40000baseCR4_Full);
 548         }
 549         if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) {
 550                 ethtool_link_ksettings_add_link_mode(ks, supported,
 551                                                      100baseT_Full);
 552                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
 553                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 554                                                              100baseT_Full);
 555         }
 556         if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T) {
 557                 ethtool_link_ksettings_add_link_mode(ks, supported,
 558                                                      1000baseT_Full);
 559                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 560                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 561                                                              1000baseT_Full);
 562         }
 563         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4) {
 564                 ethtool_link_ksettings_add_link_mode(ks, supported,
 565                                                      40000baseSR4_Full);
 566                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 567                                                      40000baseSR4_Full);
 568         }
 569         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4) {
 570                 ethtool_link_ksettings_add_link_mode(ks, supported,
 571                                                      40000baseLR4_Full);
 572                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 573                                                      40000baseLR4_Full);
 574         }
 575         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) {
 576                 ethtool_link_ksettings_add_link_mode(ks, supported,
 577                                                      40000baseKR4_Full);
 578                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 579                                                      40000baseKR4_Full);
 580         }
 581         if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) {
 582                 ethtool_link_ksettings_add_link_mode(ks, supported,
 583                                                      20000baseKR2_Full);
 584                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB)
 585                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 586                                                              20000baseKR2_Full);
 587         }
 588         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) {
 589                 ethtool_link_ksettings_add_link_mode(ks, supported,
 590                                                      10000baseKX4_Full);
 591                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 592                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 593                                                              10000baseKX4_Full);
 594         }
 595         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR &&
 596             !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) {
 597                 ethtool_link_ksettings_add_link_mode(ks, supported,
 598                                                      10000baseKR_Full);
 599                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 600                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 601                                                              10000baseKR_Full);
 602         }
 603         if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX &&
 604             !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) {
 605                 ethtool_link_ksettings_add_link_mode(ks, supported,
 606                                                      1000baseKX_Full);
 607                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 608                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 609                                                              1000baseKX_Full);
 610         }
 611         /* need to add 25G PHY types */
 612         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR) {
 613                 ethtool_link_ksettings_add_link_mode(ks, supported,
 614                                                      25000baseKR_Full);
 615                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 616                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 617                                                              25000baseKR_Full);
 618         }
 619         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR) {
 620                 ethtool_link_ksettings_add_link_mode(ks, supported,
 621                                                      25000baseCR_Full);
 622                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 623                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 624                                                              25000baseCR_Full);
 625         }
 626         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
 627             phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR) {
 628                 ethtool_link_ksettings_add_link_mode(ks, supported,
 629                                                      25000baseSR_Full);
 630                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 631                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 632                                                              25000baseSR_Full);
 633         }
 634         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC ||
 635             phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) {
 636                 ethtool_link_ksettings_add_link_mode(ks, supported,
 637                                                      25000baseCR_Full);
 638                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 639                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 640                                                              25000baseCR_Full);
 641         }
 642         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR ||
 643             phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR ||
 644             phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
 645             phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR ||
 646             phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC ||
 647             phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) {
 648                 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE);
 649                 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);
 650                 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);
 651                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) {
 652                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 653                                                              FEC_NONE);
 654                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 655                                                              FEC_RS);
 656                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 657                                                              FEC_BASER);
 658                 }
 659         }
 660         /* need to add new 10G PHY types */
 661         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
 662             phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU) {
 663                 ethtool_link_ksettings_add_link_mode(ks, supported,
 664                                                      10000baseCR_Full);
 665                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 666                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 667                                                              10000baseCR_Full);
 668         }
 669         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR) {
 670                 ethtool_link_ksettings_add_link_mode(ks, supported,
 671                                                      10000baseSR_Full);
 672                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 673                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 674                                                              10000baseSR_Full);
 675         }
 676         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) {
 677                 ethtool_link_ksettings_add_link_mode(ks, supported,
 678                                                      10000baseLR_Full);
 679                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 680                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 681                                                              10000baseLR_Full);
 682         }
 683         if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
 684             phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
 685             phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) {
 686                 ethtool_link_ksettings_add_link_mode(ks, supported,
 687                                                      1000baseX_Full);
 688                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 689                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 690                                                              1000baseX_Full);
 691         }
 692         /* Autoneg PHY types */
 693         if (phy_types & I40E_CAP_PHY_TYPE_SGMII ||
 694             phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4 ||
 695             phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
 696             phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4 ||
 697             phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
 698             phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR ||
 699             phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR ||
 700             phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR ||
 701             phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2 ||
 702             phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR ||
 703             phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR ||
 704             phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4 ||
 705             phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR ||
 706             phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU ||
 707             phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
 708             phy_types & I40E_CAP_PHY_TYPE_10GBASE_T ||
 709             phy_types & I40E_CAP_PHY_TYPE_5GBASE_T ||
 710             phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T ||
 711             phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL ||
 712             phy_types & I40E_CAP_PHY_TYPE_1000BASE_T ||
 713             phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
 714             phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
 715             phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX ||
 716             phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) {
 717                 ethtool_link_ksettings_add_link_mode(ks, supported,
 718                                                      Autoneg);
 719                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 720                                                      Autoneg);
 721         }
 722 }
 723
 724 /**
 725  * i40e_get_settings_link_up_fec - Get the FEC mode encoding from mask
 726  * @req_fec_info: mask request FEC info
 727  * @ks: ethtool ksettings to fill in
 728  **/
 729 static void i40e_get_settings_link_up_fec(u8 req_fec_info,
 730                                           struct ethtool_link_ksettings *ks)
 731 {
 732         ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE);
 733         ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);
 734         ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);
 735
 736         if ((I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) &&
 737             (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info)) {
 738                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 739                                                      FEC_NONE);
 740                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 741                                                      FEC_BASER);
 742                 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);
 743         } else if (I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) {
 744                 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);
 745         } else if (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info) {
 746                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 747                                                      FEC_BASER);
 748         } else {
 749                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 750                                                      FEC_NONE);
 751         }
 752 }
 753
 754 /**
 755  * i40e_get_settings_link_up - Get the Link settings for when link is up
 756  * @hw: hw structure
 757  * @ks: ethtool ksettings to fill in
 758  * @netdev: network interface device structure
 759  * @pf: pointer to physical function struct
 760  **/
 761 static void i40e_get_settings_link_up(struct i40e_hw *hw,
 762                                       struct ethtool_link_ksettings *ks,
 763                                       struct net_device *netdev,
 764                                       struct i40e_pf *pf)
 765 {
 766         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 767         struct ethtool_link_ksettings cap_ksettings;
 768         u32 link_speed = hw_link_info->link_speed;
 769
 770         /* Initialize supported and advertised settings based on phy settings */
 771         switch (hw_link_info->phy_type) {
 772         case I40E_PHY_TYPE_40GBASE_CR4:
 773         case I40E_PHY_TYPE_40GBASE_CR4_CU:
 774                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 775                 ethtool_link_ksettings_add_link_mode(ks, supported,
 776                                                      40000baseCR4_Full);
 777                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 778                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 779                                                      40000baseCR4_Full);
 780                 break;
 781         case I40E_PHY_TYPE_XLAUI:
 782         case I40E_PHY_TYPE_XLPPI:
 783         case I40E_PHY_TYPE_40GBASE_AOC:
 784                 ethtool_link_ksettings_add_link_mode(ks, supported,
 785                                                      40000baseCR4_Full);
 786                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 787                                                      40000baseCR4_Full);
 788                 break;
 789         case I40E_PHY_TYPE_40GBASE_SR4:
 790                 ethtool_link_ksettings_add_link_mode(ks, supported,
 791                                                      40000baseSR4_Full);
 792                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 793                                                      40000baseSR4_Full);
 794                 break;
 795         case I40E_PHY_TYPE_40GBASE_LR4:
 796                 ethtool_link_ksettings_add_link_mode(ks, supported,
 797                                                      40000baseLR4_Full);
 798                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 799                                                      40000baseLR4_Full);
 800                 break;
 801         case I40E_PHY_TYPE_25GBASE_SR:
 802         case I40E_PHY_TYPE_25GBASE_LR:
 803         case I40E_PHY_TYPE_10GBASE_SR:
 804         case I40E_PHY_TYPE_10GBASE_LR:
 805         case I40E_PHY_TYPE_1000BASE_SX:
 806         case I40E_PHY_TYPE_1000BASE_LX:
 807                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 808                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 809                 ethtool_link_ksettings_add_link_mode(ks, supported,
 810                                                      25000baseSR_Full);
 811                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 812                                                      25000baseSR_Full);
 813                 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
 814                 ethtool_link_ksettings_add_link_mode(ks, supported,
 815                                                      10000baseSR_Full);
 816                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 817                                                      10000baseSR_Full);
 818                 ethtool_link_ksettings_add_link_mode(ks, supported,
 819                                                      10000baseLR_Full);
 820                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 821                                                      10000baseLR_Full);
 822                 ethtool_link_ksettings_add_link_mode(ks, supported,
 823                                                      1000baseX_Full);
 824                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 825                                                      1000baseX_Full);
 826                 ethtool_link_ksettings_add_link_mode(ks, supported,
 827                                                      10000baseT_Full);
 828                 if (hw_link_info->module_type[2] &
 829                     I40E_MODULE_TYPE_1000BASE_SX ||
 830                     hw_link_info->module_type[2] &
 831                     I40E_MODULE_TYPE_1000BASE_LX) {
 832                         ethtool_link_ksettings_add_link_mode(ks, supported,
 833                                                              1000baseT_Full);
 834                         if (hw_link_info->requested_speeds &
 835                             I40E_LINK_SPEED_1GB)
 836                                 ethtool_link_ksettings_add_link_mode(
 837                                      ks, advertising, 1000baseT_Full);
 838                 }
 839                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 840                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 841                                                              10000baseT_Full);
 842                 break;
 843         case I40E_PHY_TYPE_10GBASE_T:
 844         case I40E_PHY_TYPE_5GBASE_T_LINK_STATUS:
 845         case I40E_PHY_TYPE_2_5GBASE_T_LINK_STATUS:
 846         case I40E_PHY_TYPE_1000BASE_T:
 847         case I40E_PHY_TYPE_100BASE_TX:
 848                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 849                 ethtool_link_ksettings_add_link_mode(ks, supported,
 850                                                      10000baseT_Full);
 851                 ethtool_link_ksettings_add_link_mode(ks, supported,
 852                                                      5000baseT_Full);
 853                 ethtool_link_ksettings_add_link_mode(ks, supported,
 854                                                      2500baseT_Full);
 855                 ethtool_link_ksettings_add_link_mode(ks, supported,
 856                                                      1000baseT_Full);
 857                 ethtool_link_ksettings_add_link_mode(ks, supported,
 858                                                      100baseT_Full);
 859                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 860                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 861                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 862                                                              10000baseT_Full);
 863                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB)
 864                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 865                                                              5000baseT_Full);
 866                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB)
 867                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 868                                                              2500baseT_Full);
 869                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 870                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 871                                                              1000baseT_Full);
 872                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
 873                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 874                                                              100baseT_Full);
 875                 break;
 876         case I40E_PHY_TYPE_1000BASE_T_OPTICAL:
 877                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 878                 ethtool_link_ksettings_add_link_mode(ks, supported,
 879                                                      1000baseT_Full);
 880                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 881                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 882                                                      1000baseT_Full);
 883                 break;
 884         case I40E_PHY_TYPE_10GBASE_CR1_CU:
 885         case I40E_PHY_TYPE_10GBASE_CR1:
 886                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 887                 ethtool_link_ksettings_add_link_mode(ks, supported,
 888                                                      10000baseT_Full);
 889                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 890                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 891                                                      10000baseT_Full);
 892                 break;
 893         case I40E_PHY_TYPE_XAUI:
 894         case I40E_PHY_TYPE_XFI:
 895         case I40E_PHY_TYPE_SFI:
 896         case I40E_PHY_TYPE_10GBASE_SFPP_CU:
 897         case I40E_PHY_TYPE_10GBASE_AOC:
 898                 ethtool_link_ksettings_add_link_mode(ks, supported,
 899                                                      10000baseT_Full);
 900                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 901                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 902                                                              10000baseT_Full);
 903                 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
 904                 break;
 905         case I40E_PHY_TYPE_SGMII:
 906                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 907                 ethtool_link_ksettings_add_link_mode(ks, supported,
 908                                                      1000baseT_Full);
 909                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 910                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 911                                                              1000baseT_Full);
 912                 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) {
 913                         ethtool_link_ksettings_add_link_mode(ks, supported,
 914                                                              100baseT_Full);
 915                         if (hw_link_info->requested_speeds &
 916                             I40E_LINK_SPEED_100MB)
 917                                 ethtool_link_ksettings_add_link_mode(
 918                                       ks, advertising, 100baseT_Full);
 919                 }
 920                 break;
 921         case I40E_PHY_TYPE_40GBASE_KR4:
 922         case I40E_PHY_TYPE_25GBASE_KR:
 923         case I40E_PHY_TYPE_20GBASE_KR2:
 924         case I40E_PHY_TYPE_10GBASE_KR:
 925         case I40E_PHY_TYPE_10GBASE_KX4:
 926         case I40E_PHY_TYPE_1000BASE_KX:
 927                 ethtool_link_ksettings_add_link_mode(ks, supported,
 928                                                      40000baseKR4_Full);
 929                 ethtool_link_ksettings_add_link_mode(ks, supported,
 930                                                      25000baseKR_Full);
 931                 ethtool_link_ksettings_add_link_mode(ks, supported,
 932                                                      20000baseKR2_Full);
 933                 ethtool_link_ksettings_add_link_mode(ks, supported,
 934                                                      10000baseKR_Full);
 935                 ethtool_link_ksettings_add_link_mode(ks, supported,
 936                                                      10000baseKX4_Full);
 937                 ethtool_link_ksettings_add_link_mode(ks, supported,
 938                                                      1000baseKX_Full);
 939                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 940                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 941                                                      40000baseKR4_Full);
 942                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 943                                                      25000baseKR_Full);
 944                 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
 945                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 946                                                      20000baseKR2_Full);
 947                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 948                                                      10000baseKR_Full);
 949                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 950                                                      10000baseKX4_Full);
 951                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 952                                                      1000baseKX_Full);
 953                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 954                 break;
 955         case I40E_PHY_TYPE_25GBASE_CR:
 956                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 957                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 958                 ethtool_link_ksettings_add_link_mode(ks, supported,
 959                                                      25000baseCR_Full);
 960                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 961                                                      25000baseCR_Full);
 962                 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
 963
 964                 break;
 965         case I40E_PHY_TYPE_25GBASE_AOC:
 966         case I40E_PHY_TYPE_25GBASE_ACC:
 967                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 968                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 969                 ethtool_link_ksettings_add_link_mode(ks, supported,
 970                                                      25000baseCR_Full);
 971                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 972                                                      25000baseCR_Full);
 973                 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
 974
 975                 ethtool_link_ksettings_add_link_mode(ks, supported,
 976                                                      10000baseCR_Full);
 977                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 978                                                      10000baseCR_Full);
 979                 break;
 980         default:
 981                 /* if we got here and link is up something bad is afoot */
 982                 netdev_info(netdev,
 983                             "WARNING: Link is up but PHY type 0x%x is not recognized.\n",
 984                             hw_link_info->phy_type);
 985         }
 986
 987         /* Now that we've worked out everything that could be supported by the
 988          * current PHY type, get what is supported by the NVM and intersect
 989          * them to get what is truly supported
 990          */
 991         memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings));
 992         i40e_phy_type_to_ethtool(pf, &cap_ksettings);
 993         ethtool_intersect_link_masks(ks, &cap_ksettings);
 994
 995         /* Set speed and duplex */
 996         switch (link_speed) {
 997         case I40E_LINK_SPEED_40GB:
 998                 ks->base.speed = SPEED_40000;
 999                 break;
1000         case I40E_LINK_SPEED_25GB:
1001                 ks->base.speed = SPEED_25000;
1002                 break;
1003         case I40E_LINK_SPEED_20GB:
1004                 ks->base.speed = SPEED_20000;
1005                 break;
1006         case I40E_LINK_SPEED_10GB:
1007                 ks->base.speed = SPEED_10000;
1008                 break;
1009         case I40E_LINK_SPEED_5GB:
1010                 ks->base.speed = SPEED_5000;
1011                 break;
1012         case I40E_LINK_SPEED_2_5GB:
1013                 ks->base.speed = SPEED_2500;
1014                 break;
1015         case I40E_LINK_SPEED_1GB:
1016                 ks->base.speed = SPEED_1000;
1017                 break;
1018         case I40E_LINK_SPEED_100MB:
1019                 ks->base.speed = SPEED_100;
1020                 break;
1021         default:
1022                 ks->base.speed = SPEED_UNKNOWN;
1023                 break;
1024         }
1025         ks->base.duplex = DUPLEX_FULL;
1026 }
1027
1028 /**
1029  * i40e_get_settings_link_down - Get the Link settings for when link is down
1030  * @hw: hw structure
1031  * @ks: ethtool ksettings to fill in
1032  * @pf: pointer to physical function struct
1033  *
1034  * Reports link settings that can be determined when link is down
1035  **/
1036 static void i40e_get_settings_link_down(struct i40e_hw *hw,
1037                                         struct ethtool_link_ksettings *ks,
1038                                         struct i40e_pf *pf)
1039 {
1040         /* link is down and the driver needs to fall back on
1041          * supported phy types to figure out what info to display
1042          */
1043         i40e_phy_type_to_ethtool(pf, ks);
1044
1045         /* With no link speed and duplex are unknown */
1046         ks->base.speed = SPEED_UNKNOWN;
1047         ks->base.duplex = DUPLEX_UNKNOWN;
1048 }
1049
1050 /**
1051  * i40e_get_link_ksettings - Get Link Speed and Duplex settings
1052  * @netdev: network interface device structure
1053  * @ks: ethtool ksettings
1054  *
1055  * Reports speed/duplex settings based on media_type
1056  **/
1057 static int i40e_get_link_ksettings(struct net_device *netdev,
1058                                    struct ethtool_link_ksettings *ks)
1059 {
1060         struct i40e_netdev_priv *np = netdev_priv(netdev);
1061         struct i40e_pf *pf = np->vsi->back;
1062         struct i40e_hw *hw = &pf->hw;
1063         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1064         bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
1065
1066         ethtool_link_ksettings_zero_link_mode(ks, supported);
1067         ethtool_link_ksettings_zero_link_mode(ks, advertising);
1068
1069         if (link_up)
1070                 i40e_get_settings_link_up(hw, ks, netdev, pf);
1071         else
1072                 i40e_get_settings_link_down(hw, ks, pf);
1073
1074         /* Now set the settings that don't rely on link being up/down */
1075         /* Set autoneg settings */
1076         ks->base.autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
1077                             AUTONEG_ENABLE : AUTONEG_DISABLE);
1078
1079         /* Set media type settings */
1080         switch (hw->phy.media_type) {
1081         case I40E_MEDIA_TYPE_BACKPLANE:
1082                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1083                 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane);
1084                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1085                 ethtool_link_ksettings_add_link_mode(ks, advertising,
1086                                                      Backplane);
1087                 ks->base.port = PORT_NONE;
1088                 break;
1089         case I40E_MEDIA_TYPE_BASET:
1090                 ethtool_link_ksettings_add_link_mode(ks, supported, TP);
1091                 ethtool_link_ksettings_add_link_mode(ks, advertising, TP);
1092                 ks->base.port = PORT_TP;
1093                 break;
1094         case I40E_MEDIA_TYPE_DA:
1095         case I40E_MEDIA_TYPE_CX4:
1096                 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
1097                 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
1098                 ks->base.port = PORT_DA;
1099                 break;
1100         case I40E_MEDIA_TYPE_FIBER:
1101                 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
1102                 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
1103                 ks->base.port = PORT_FIBRE;
1104                 break;
1105         case I40E_MEDIA_TYPE_UNKNOWN:
1106         default:
1107                 ks->base.port = PORT_OTHER;
1108                 break;
1109         }
1110
1111         /* Set flow control settings */
1112         ethtool_link_ksettings_add_link_mode(ks, supported, Pause);
1113         ethtool_link_ksettings_add_link_mode(ks, supported, Asym_Pause);
1114
1115         switch (hw->fc.requested_mode) {
1116         case I40E_FC_FULL:
1117                 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
1118                 break;
1119         case I40E_FC_TX_PAUSE:
1120                 ethtool_link_ksettings_add_link_mode(ks, advertising,
1121                                                      Asym_Pause);
1122                 break;
1123         case I40E_FC_RX_PAUSE:
1124                 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
1125                 ethtool_link_ksettings_add_link_mode(ks, advertising,
1126                                                      Asym_Pause);
1127                 break;
1128         default:
1129                 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause);
1130                 ethtool_link_ksettings_del_link_mode(ks, advertising,
1131                                                      Asym_Pause);
1132                 break;
1133         }
1134
1135         return 0;
1136 }
1137
1138 /**
1139  * i40e_set_link_ksettings - Set Speed and Duplex
1140  * @netdev: network interface device structure
1141  * @ks: ethtool ksettings
1142  *
1143  * Set speed/duplex per media_types advertised/forced
1144  **/
1145 static int i40e_set_link_ksettings(struct net_device *netdev,
1146                                    const struct ethtool_link_ksettings *ks)
1147 {
1148         struct i40e_netdev_priv *np = netdev_priv(netdev);
1149         struct i40e_aq_get_phy_abilities_resp abilities;
1150         struct ethtool_link_ksettings safe_ks;
1151         struct ethtool_link_ksettings copy_ks;
1152         struct i40e_aq_set_phy_config config;
1153         struct i40e_pf *pf = np->vsi->back;
1154         struct i40e_vsi *vsi = np->vsi;
1155         struct i40e_hw *hw = &pf->hw;
1156         bool autoneg_changed = false;
1157         i40e_status status = 0;
1158         int timeout = 50;
1159         int err = 0;
1160         u8 autoneg;
1161
1162         /* Changing port settings is not supported if this isn't the
1163          * port's controlling PF
1164          */
1165         if (hw->partition_id != 1) {
1166                 i40e_partition_setting_complaint(pf);
1167                 return -EOPNOTSUPP;
1168         }
1169         if (vsi != pf->vsi[pf->lan_vsi])
1170                 return -EOPNOTSUPP;
1171         if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET &&
1172             hw->phy.media_type != I40E_MEDIA_TYPE_FIBER &&
1173             hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE &&
1174             hw->phy.media_type != I40E_MEDIA_TYPE_DA &&
1175             hw->phy.link_info.link_info & I40E_AQ_LINK_UP)
1176                 return -EOPNOTSUPP;
1177         if (hw->device_id == I40E_DEV_ID_KX_B ||
1178             hw->device_id == I40E_DEV_ID_KX_C ||
1179             hw->device_id == I40E_DEV_ID_20G_KR2 ||
1180             hw->device_id == I40E_DEV_ID_20G_KR2_A ||
1181             hw->device_id == I40E_DEV_ID_25G_B ||
1182             hw->device_id == I40E_DEV_ID_KX_X722) {
1183                 netdev_info(netdev, "Changing settings is not supported on backplane.\n");
1184                 return -EOPNOTSUPP;
1185         }
1186
1187         /* copy the ksettings to copy_ks to avoid modifying the origin */
1188         memcpy(&copy_ks, ks, sizeof(struct ethtool_link_ksettings));
1189
1190         /* save autoneg out of ksettings */
1191         autoneg = copy_ks.base.autoneg;
1192
1193         /* get our own copy of the bits to check against */
1194         memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings));
1195         safe_ks.base.cmd = copy_ks.base.cmd;
1196         safe_ks.base.link_mode_masks_nwords =
1197                 copy_ks.base.link_mode_masks_nwords;
1198         i40e_get_link_ksettings(netdev, &safe_ks);
1199
1200         /* Get link modes supported by hardware and check against modes
1201          * requested by the user.  Return an error if unsupported mode was set.
1202          */
1203         if (!bitmap_subset(copy_ks.link_modes.advertising,
1204                            safe_ks.link_modes.supported,
1205                            __ETHTOOL_LINK_MODE_MASK_NBITS))
1206                 return -EINVAL;
1207
1208         /* set autoneg back to what it currently is */
1209         copy_ks.base.autoneg = safe_ks.base.autoneg;
1210
1211         /* If copy_ks.base and safe_ks.base are not the same now, then they are
1212          * trying to set something that we do not support.
1213          */
1214         if (memcmp(&copy_ks.base, &safe_ks.base,
1215                    sizeof(struct ethtool_link_settings)))
1216                 return -EOPNOTSUPP;
1217
1218         while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) {
1219                 timeout--;
1220                 if (!timeout)
1221                         return -EBUSY;
1222                 usleep_range(1000, 2000);
1223         }
1224
1225         /* Get the current phy config */
1226         status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1227                                               NULL);
1228         if (status) {
1229                 err = -EAGAIN;
1230                 goto done;
1231         }
1232
1233         /* Copy abilities to config in case autoneg is not
1234          * set below
1235          */
1236         memset(&config, 0, sizeof(struct i40e_aq_set_phy_config));
1237         config.abilities = abilities.abilities;
1238
1239         /* Check autoneg */
1240         if (autoneg == AUTONEG_ENABLE) {
1241                 /* If autoneg was not already enabled */
1242                 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) {
1243                         /* If autoneg is not supported, return error */
1244                         if (!ethtool_link_ksettings_test_link_mode(&safe_ks,
1245                                                                    supported,
1246                                                                    Autoneg)) {
1247                                 netdev_info(netdev, "Autoneg not supported on this phy\n");
1248                                 err = -EINVAL;
1249                                 goto done;
1250                         }
1251                         /* Autoneg is allowed to change */
1252                         config.abilities = abilities.abilities |
1253                                            I40E_AQ_PHY_ENABLE_AN;
1254                         autoneg_changed = true;
1255                 }
1256         } else {
1257                 /* If autoneg is currently enabled */
1258                 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) {
1259                         /* If autoneg is supported 10GBASE_T is the only PHY
1260                          * that can disable it, so otherwise return error
1261                          */
1262                         if (ethtool_link_ksettings_test_link_mode(&safe_ks,
1263                                                                   supported,
1264                                                                   Autoneg) &&
1265                             hw->phy.link_info.phy_type !=
1266                             I40E_PHY_TYPE_10GBASE_T) {
1267                                 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
1268                                 err = -EINVAL;
1269                                 goto done;
1270                         }
1271                         /* Autoneg is allowed to change */
1272                         config.abilities = abilities.abilities &
1273                                            ~I40E_AQ_PHY_ENABLE_AN;
1274                         autoneg_changed = true;
1275                 }
1276         }
1277
1278         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1279                                                   100baseT_Full))
1280                 config.link_speed |= I40E_LINK_SPEED_100MB;
1281         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1282                                                   1000baseT_Full) ||
1283             ethtool_link_ksettings_test_link_mode(ks, advertising,
1284                                                   1000baseX_Full) ||
1285             ethtool_link_ksettings_test_link_mode(ks, advertising,
1286                                                   1000baseKX_Full))
1287                 config.link_speed |= I40E_LINK_SPEED_1GB;
1288         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1289                                                   10000baseT_Full) ||
1290             ethtool_link_ksettings_test_link_mode(ks, advertising,
1291                                                   10000baseKX4_Full) ||
1292             ethtool_link_ksettings_test_link_mode(ks, advertising,
1293                                                   10000baseKR_Full) ||
1294             ethtool_link_ksettings_test_link_mode(ks, advertising,
1295                                                   10000baseCR_Full) ||
1296             ethtool_link_ksettings_test_link_mode(ks, advertising,
1297                                                   10000baseSR_Full) ||
1298             ethtool_link_ksettings_test_link_mode(ks, advertising,
1299                                                   10000baseLR_Full))
1300                 config.link_speed |= I40E_LINK_SPEED_10GB;
1301         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1302                                                   2500baseT_Full))
1303                 config.link_speed |= I40E_LINK_SPEED_2_5GB;
1304         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1305                                                   5000baseT_Full))
1306                 config.link_speed |= I40E_LINK_SPEED_5GB;
1307         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1308                                                   20000baseKR2_Full))
1309                 config.link_speed |= I40E_LINK_SPEED_20GB;
1310         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1311                                                   25000baseCR_Full) ||
1312             ethtool_link_ksettings_test_link_mode(ks, advertising,
1313                                                   25000baseKR_Full) ||
1314             ethtool_link_ksettings_test_link_mode(ks, advertising,
1315                                                   25000baseSR_Full))
1316                 config.link_speed |= I40E_LINK_SPEED_25GB;
1317         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1318                                                   40000baseKR4_Full) ||
1319             ethtool_link_ksettings_test_link_mode(ks, advertising,
1320                                                   40000baseCR4_Full) ||
1321             ethtool_link_ksettings_test_link_mode(ks, advertising,
1322                                                   40000baseSR4_Full) ||
1323             ethtool_link_ksettings_test_link_mode(ks, advertising,
1324                                                   40000baseLR4_Full))
1325                 config.link_speed |= I40E_LINK_SPEED_40GB;
1326
1327         /* If speed didn't get set, set it to what it currently is.
1328          * This is needed because if advertise is 0 (as it is when autoneg
1329          * is disabled) then speed won't get set.
1330          */
1331         if (!config.link_speed)
1332                 config.link_speed = abilities.link_speed;
1333         if (autoneg_changed || abilities.link_speed != config.link_speed) {
1334                 /* copy over the rest of the abilities */
1335                 config.phy_type = abilities.phy_type;
1336                 config.phy_type_ext = abilities.phy_type_ext;
1337                 config.eee_capability = abilities.eee_capability;
1338                 config.eeer = abilities.eeer_val;
1339                 config.low_power_ctrl = abilities.d3_lpan;
1340                 config.fec_config = abilities.fec_cfg_curr_mod_ext_info &
1341                                     I40E_AQ_PHY_FEC_CONFIG_MASK;
1342
1343                 /* save the requested speeds */
1344                 hw->phy.link_info.requested_speeds = config.link_speed;
1345                 /* set link and auto negotiation so changes take effect */
1346                 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
1347                 /* If link is up put link down */
1348                 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) {
1349                         /* Tell the OS link is going down, the link will go
1350                          * back up when fw says it is ready asynchronously
1351                          */
1352                         i40e_print_link_message(vsi, false);
1353                         netif_carrier_off(netdev);
1354                         netif_tx_stop_all_queues(netdev);
1355                 }
1356
1357                 /* make the aq call */
1358                 status = i40e_aq_set_phy_config(hw, &config, NULL);
1359                 if (status) {
1360                         netdev_info(netdev,
1361                                     "Set phy config failed, err %s aq_err %s\n",
1362                                     i40e_stat_str(hw, status),
1363                                     i40e_aq_str(hw, hw->aq.asq_last_status));
1364                         err = -EAGAIN;
1365                         goto done;
1366                 }
1367
1368                 status = i40e_update_link_info(hw);
1369                 if (status)
1370                         netdev_dbg(netdev,
1371                                    "Updating link info failed with err %s aq_err %s\n",
1372                                    i40e_stat_str(hw, status),
1373                                    i40e_aq_str(hw, hw->aq.asq_last_status));
1374
1375         } else {
1376                 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
1377         }
1378
1379 done:
1380         clear_bit(__I40E_CONFIG_BUSY, pf->state);
1381
1382         return err;
1383 }
1384
1385 static int i40e_set_fec_cfg(struct net_device *netdev, u8 fec_cfg)
1386 {
1387         struct i40e_netdev_priv *np = netdev_priv(netdev);
1388         struct i40e_aq_get_phy_abilities_resp abilities;
1389         struct i40e_pf *pf = np->vsi->back;
1390         struct i40e_hw *hw = &pf->hw;
1391         i40e_status status = 0;
1392         u32 flags = 0;
1393         int err = 0;
1394
1395         flags = READ_ONCE(pf->flags);
1396         i40e_set_fec_in_flags(fec_cfg, &flags);
1397
1398         /* Get the current phy config */
1399         memset(&abilities, 0, sizeof(abilities));
1400         status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1401                                               NULL);
1402         if (status) {
1403                 err = -EAGAIN;
1404                 goto done;
1405         }
1406
1407         if (abilities.fec_cfg_curr_mod_ext_info != fec_cfg) {
1408                 struct i40e_aq_set_phy_config config;
1409
1410                 memset(&config, 0, sizeof(config));
1411                 config.phy_type = abilities.phy_type;
1412                 config.abilities = abilities.abilities |
1413                                    I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
1414                 config.phy_type_ext = abilities.phy_type_ext;
1415                 config.link_speed = abilities.link_speed;
1416                 config.eee_capability = abilities.eee_capability;
1417                 config.eeer = abilities.eeer_val;
1418                 config.low_power_ctrl = abilities.d3_lpan;
1419                 config.fec_config = fec_cfg & I40E_AQ_PHY_FEC_CONFIG_MASK;
1420                 status = i40e_aq_set_phy_config(hw, &config, NULL);
1421                 if (status) {
1422                         netdev_info(netdev,
1423                                     "Set phy config failed, err %s aq_err %s\n",
1424                                     i40e_stat_str(hw, status),
1425                                     i40e_aq_str(hw, hw->aq.asq_last_status));
1426                         err = -EAGAIN;
1427                         goto done;
1428                 }
1429                 pf->flags = flags;
1430                 status = i40e_update_link_info(hw);
1431                 if (status)
1432                         /* debug level message only due to relation to the link
1433                          * itself rather than to the FEC settings
1434                          * (e.g. no physical connection etc.)
1435                          */
1436                         netdev_dbg(netdev,
1437                                    "Updating link info failed with err %s aq_err %s\n",
1438                                    i40e_stat_str(hw, status),
1439                                    i40e_aq_str(hw, hw->aq.asq_last_status));
1440         }
1441
1442 done:
1443         return err;
1444 }
1445
1446 static int i40e_get_fec_param(struct net_device *netdev,
1447                               struct ethtool_fecparam *fecparam)
1448 {
1449         struct i40e_netdev_priv *np = netdev_priv(netdev);
1450         struct i40e_aq_get_phy_abilities_resp abilities;
1451         struct i40e_pf *pf = np->vsi->back;
1452         struct i40e_hw *hw = &pf->hw;
1453         i40e_status status = 0;
1454         int err = 0;
1455         u8 fec_cfg;
1456
1457         /* Get the current phy config */
1458         memset(&abilities, 0, sizeof(abilities));
1459         status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1460                                               NULL);
1461         if (status) {
1462                 err = -EAGAIN;
1463                 goto done;
1464         }
1465
1466         fecparam->fec = 0;
1467         fec_cfg = abilities.fec_cfg_curr_mod_ext_info;
1468         if (fec_cfg & I40E_AQ_SET_FEC_AUTO)
1469                 fecparam->fec |= ETHTOOL_FEC_AUTO;
1470         else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_RS |
1471                  I40E_AQ_SET_FEC_ABILITY_RS))
1472                 fecparam->fec |= ETHTOOL_FEC_RS;
1473         else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_KR |
1474                  I40E_AQ_SET_FEC_ABILITY_KR))
1475                 fecparam->fec |= ETHTOOL_FEC_BASER;
1476         if (fec_cfg == 0)
1477                 fecparam->fec |= ETHTOOL_FEC_OFF;
1478
1479         if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_KR_ENA)
1480                 fecparam->active_fec = ETHTOOL_FEC_BASER;
1481         else if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_RS_ENA)
1482                 fecparam->active_fec = ETHTOOL_FEC_RS;
1483         else
1484                 fecparam->active_fec = ETHTOOL_FEC_OFF;
1485 done:
1486         return err;
1487 }
1488
1489 static int i40e_set_fec_param(struct net_device *netdev,
1490                               struct ethtool_fecparam *fecparam)
1491 {
1492         struct i40e_netdev_priv *np = netdev_priv(netdev);
1493         struct i40e_pf *pf = np->vsi->back;
1494         struct i40e_hw *hw = &pf->hw;
1495         u8 fec_cfg = 0;
1496
1497         if (hw->device_id != I40E_DEV_ID_25G_SFP28 &&
1498             hw->device_id != I40E_DEV_ID_25G_B &&
1499             hw->device_id != I40E_DEV_ID_KX_X722)
1500                 return -EPERM;
1501
1502         if (hw->mac.type == I40E_MAC_X722 &&
1503             !(hw->flags & I40E_HW_FLAG_X722_FEC_REQUEST_CAPABLE)) {
1504                 netdev_err(netdev, "Setting FEC encoding not supported by firmware. Please update the NVM image.\n");
1505                 return -EOPNOTSUPP;
1506         }
1507
1508         switch (fecparam->fec) {
1509         case ETHTOOL_FEC_AUTO:
1510                 fec_cfg = I40E_AQ_SET_FEC_AUTO;
1511                 break;
1512         case ETHTOOL_FEC_RS:
1513                 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS |
1514                              I40E_AQ_SET_FEC_ABILITY_RS);
1515                 break;
1516         case ETHTOOL_FEC_BASER:
1517                 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR |
1518                              I40E_AQ_SET_FEC_ABILITY_KR);
1519                 break;
1520         case ETHTOOL_FEC_OFF:
1521         case ETHTOOL_FEC_NONE:
1522                 fec_cfg = 0;
1523                 break;
1524         default:
1525                 dev_warn(&pf->pdev->dev, "Unsupported FEC mode: %d",
1526                          fecparam->fec);
1527                 return -EINVAL;
1528         }
1529
1530         return i40e_set_fec_cfg(netdev, fec_cfg);
1531 }
1532
1533 static int i40e_nway_reset(struct net_device *netdev)
1534 {
1535         /* restart autonegotiation */
1536         struct i40e_netdev_priv *np = netdev_priv(netdev);
1537         struct i40e_pf *pf = np->vsi->back;
1538         struct i40e_hw *hw = &pf->hw;
1539         bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP;
1540         i40e_status ret = 0;
1541
1542         ret = i40e_aq_set_link_restart_an(hw, link_up, NULL);
1543         if (ret) {
1544                 netdev_info(netdev, "link restart failed, err %s aq_err %s\n",
1545                             i40e_stat_str(hw, ret),
1546                             i40e_aq_str(hw, hw->aq.asq_last_status));
1547                 return -EIO;
1548         }
1549
1550         return 0;
1551 }
1552
1553 /**
1554  * i40e_get_pauseparam -  Get Flow Control status
1555  * @netdev: netdevice structure
1556  * @pause: buffer to return pause parameters
1557  *
1558  * Return tx/rx-pause status
1559  **/
1560 static void i40e_get_pauseparam(struct net_device *netdev,
1561                                 struct ethtool_pauseparam *pause)
1562 {
1563         struct i40e_netdev_priv *np = netdev_priv(netdev);
1564         struct i40e_pf *pf = np->vsi->back;
1565         struct i40e_hw *hw = &pf->hw;
1566         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1567         struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
1568
1569         pause->autoneg =
1570                 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
1571                   AUTONEG_ENABLE : AUTONEG_DISABLE);
1572
1573         /* PFC enabled so report LFC as off */
1574         if (dcbx_cfg->pfc.pfcenable) {
1575                 pause->rx_pause = 0;
1576                 pause->tx_pause = 0;
1577                 return;
1578         }
1579
1580         if (hw->fc.current_mode == I40E_FC_RX_PAUSE) {
1581                 pause->rx_pause = 1;
1582         } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) {
1583                 pause->tx_pause = 1;
1584         } else if (hw->fc.current_mode == I40E_FC_FULL) {
1585                 pause->rx_pause = 1;
1586                 pause->tx_pause = 1;
1587         }
1588 }
1589
1590 /**
1591  * i40e_set_pauseparam - Set Flow Control parameter
1592  * @netdev: network interface device structure
1593  * @pause: return tx/rx flow control status
1594  **/
1595 static int i40e_set_pauseparam(struct net_device *netdev,
1596                                struct ethtool_pauseparam *pause)
1597 {
1598         struct i40e_netdev_priv *np = netdev_priv(netdev);
1599         struct i40e_pf *pf = np->vsi->back;
1600         struct i40e_vsi *vsi = np->vsi;
1601         struct i40e_hw *hw = &pf->hw;
1602         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1603         struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
1604         bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
1605         i40e_status status;
1606         u8 aq_failures;
1607         int err = 0;
1608         u32 is_an;
1609
1610         /* Changing the port's flow control is not supported if this isn't the
1611          * port's controlling PF
1612          */
1613         if (hw->partition_id != 1) {
1614                 i40e_partition_setting_complaint(pf);
1615                 return -EOPNOTSUPP;
1616         }
1617
1618         if (vsi != pf->vsi[pf->lan_vsi])
1619                 return -EOPNOTSUPP;
1620
1621         is_an = hw_link_info->an_info & I40E_AQ_AN_COMPLETED;
1622         if (pause->autoneg != is_an) {
1623                 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
1624                 return -EOPNOTSUPP;
1625         }
1626
1627         /* If we have link and don't have autoneg */
1628         if (!test_bit(__I40E_DOWN, pf->state) && !is_an) {
1629                 /* Send message that it might not necessarily work*/
1630                 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
1631         }
1632
1633         if (dcbx_cfg->pfc.pfcenable) {
1634                 netdev_info(netdev,
1635                             "Priority flow control enabled. Cannot set link flow control.\n");
1636                 return -EOPNOTSUPP;
1637         }
1638
1639         if (pause->rx_pause && pause->tx_pause)
1640                 hw->fc.requested_mode = I40E_FC_FULL;
1641         else if (pause->rx_pause && !pause->tx_pause)
1642                 hw->fc.requested_mode = I40E_FC_RX_PAUSE;
1643         else if (!pause->rx_pause && pause->tx_pause)
1644                 hw->fc.requested_mode = I40E_FC_TX_PAUSE;
1645         else if (!pause->rx_pause && !pause->tx_pause)
1646                 hw->fc.requested_mode = I40E_FC_NONE;
1647         else
1648                 return -EINVAL;
1649
1650         /* Tell the OS link is going down, the link will go back up when fw
1651          * says it is ready asynchronously
1652          */
1653         i40e_print_link_message(vsi, false);
1654         netif_carrier_off(netdev);
1655         netif_tx_stop_all_queues(netdev);
1656
1657         /* Set the fc mode and only restart an if link is up*/
1658         status = i40e_set_fc(hw, &aq_failures, link_up);
1659
1660         if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) {
1661                 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n",
1662                             i40e_stat_str(hw, status),
1663                             i40e_aq_str(hw, hw->aq.asq_last_status));
1664                 err = -EAGAIN;
1665         }
1666         if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) {
1667                 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n",
1668                             i40e_stat_str(hw, status),
1669                             i40e_aq_str(hw, hw->aq.asq_last_status));
1670                 err = -EAGAIN;
1671         }
1672         if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) {
1673                 netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n",
1674                             i40e_stat_str(hw, status),
1675                             i40e_aq_str(hw, hw->aq.asq_last_status));
1676                 err = -EAGAIN;
1677         }
1678
1679         if (!test_bit(__I40E_DOWN, pf->state) && is_an) {
1680                 /* Give it a little more time to try to come back */
1681                 msleep(75);
1682                 if (!test_bit(__I40E_DOWN, pf->state))
1683                         return i40e_nway_reset(netdev);
1684         }
1685
1686         return err;
1687 }
1688
1689 static u32 i40e_get_msglevel(struct net_device *netdev)
1690 {
1691         struct i40e_netdev_priv *np = netdev_priv(netdev);
1692         struct i40e_pf *pf = np->vsi->back;
1693         u32 debug_mask = pf->hw.debug_mask;
1694
1695         if (debug_mask)
1696                 netdev_info(netdev, "i40e debug_mask: 0x%08X\n", debug_mask);
1697
1698         return pf->msg_enable;
1699 }
1700
1701 static void i40e_set_msglevel(struct net_device *netdev, u32 data)
1702 {
1703         struct i40e_netdev_priv *np = netdev_priv(netdev);
1704         struct i40e_pf *pf = np->vsi->back;
1705
1706         if (I40E_DEBUG_USER & data)
1707                 pf->hw.debug_mask = data;
1708         else
1709                 pf->msg_enable = data;
1710 }
1711
1712 static int i40e_get_regs_len(struct net_device *netdev)
1713 {
1714         int reg_count = 0;
1715         int i;
1716
1717         for (i = 0; i40e_reg_list[i].offset != 0; i++)
1718                 reg_count += i40e_reg_list[i].elements;
1719
1720         return reg_count * sizeof(u32);
1721 }
1722
1723 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
1724                           void *p)
1725 {
1726         struct i40e_netdev_priv *np = netdev_priv(netdev);
1727         struct i40e_pf *pf = np->vsi->back;
1728         struct i40e_hw *hw = &pf->hw;
1729         u32 *reg_buf = p;
1730         unsigned int i, j, ri;
1731         u32 reg;
1732
1733         /* Tell ethtool which driver-version-specific regs output we have.
1734          *
1735          * At some point, if we have ethtool doing special formatting of
1736          * this data, it will rely on this version number to know how to
1737          * interpret things.  Hence, this needs to be updated if/when the
1738          * diags register table is changed.
1739          */
1740         regs->version = 1;
1741
1742         /* loop through the diags reg table for what to print */
1743         ri = 0;
1744         for (i = 0; i40e_reg_list[i].offset != 0; i++) {
1745                 for (j = 0; j < i40e_reg_list[i].elements; j++) {
1746                         reg = i40e_reg_list[i].offset
1747                                 + (j * i40e_reg_list[i].stride);
1748                         reg_buf[ri++] = rd32(hw, reg);
1749                 }
1750         }
1751
1752 }
1753
1754 static int i40e_get_eeprom(struct net_device *netdev,
1755                            struct ethtool_eeprom *eeprom, u8 *bytes)
1756 {
1757         struct i40e_netdev_priv *np = netdev_priv(netdev);
1758         struct i40e_hw *hw = &np->vsi->back->hw;
1759         struct i40e_pf *pf = np->vsi->back;
1760         int ret_val = 0, len, offset;
1761         u8 *eeprom_buff;
1762         u16 i, sectors;
1763         bool last;
1764         u32 magic;
1765
1766 #define I40E_NVM_SECTOR_SIZE  4096
1767         if (eeprom->len == 0)
1768                 return -EINVAL;
1769
1770         /* check for NVMUpdate access method */
1771         magic = hw->vendor_id | (hw->device_id << 16);
1772         if (eeprom->magic && eeprom->magic != magic) {
1773                 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1774                 int errno = 0;
1775
1776                 /* make sure it is the right magic for NVMUpdate */
1777                 if ((eeprom->magic >> 16) != hw->device_id)
1778                         errno = -EINVAL;
1779                 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
1780                          test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
1781                         errno = -EBUSY;
1782                 else
1783                         ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1784
1785                 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1786                         dev_info(&pf->pdev->dev,
1787                                  "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1788                                  ret_val, hw->aq.asq_last_status, errno,
1789                                  (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1790                                  cmd->offset, cmd->data_size);
1791
1792                 return errno;
1793         }
1794
1795         /* normal ethtool get_eeprom support */
1796         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
1797
1798         eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL);
1799         if (!eeprom_buff)
1800                 return -ENOMEM;
1801
1802         ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
1803         if (ret_val) {
1804                 dev_info(&pf->pdev->dev,
1805                          "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1806                          ret_val, hw->aq.asq_last_status);
1807                 goto free_buff;
1808         }
1809
1810         sectors = eeprom->len / I40E_NVM_SECTOR_SIZE;
1811         sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0;
1812         len = I40E_NVM_SECTOR_SIZE;
1813         last = false;
1814         for (i = 0; i < sectors; i++) {
1815                 if (i == (sectors - 1)) {
1816                         len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i);
1817                         last = true;
1818                 }
1819                 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i),
1820                 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len,
1821                                 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i),
1822                                 last, NULL);
1823                 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) {
1824                         dev_info(&pf->pdev->dev,
1825                                  "read NVM failed, invalid offset 0x%x\n",
1826                                  offset);
1827                         break;
1828                 } else if (ret_val &&
1829                            hw->aq.asq_last_status == I40E_AQ_RC_EACCES) {
1830                         dev_info(&pf->pdev->dev,
1831                                  "read NVM failed, access, offset 0x%x\n",
1832                                  offset);
1833                         break;
1834                 } else if (ret_val) {
1835                         dev_info(&pf->pdev->dev,
1836                                  "read NVM failed offset %d err=%d status=0x%x\n",
1837                                  offset, ret_val, hw->aq.asq_last_status);
1838                         break;
1839                 }
1840         }
1841
1842         i40e_release_nvm(hw);
1843         memcpy(bytes, (u8 *)eeprom_buff, eeprom->len);
1844 free_buff:
1845         kfree(eeprom_buff);
1846         return ret_val;
1847 }
1848
1849 static int i40e_get_eeprom_len(struct net_device *netdev)
1850 {
1851         struct i40e_netdev_priv *np = netdev_priv(netdev);
1852         struct i40e_hw *hw = &np->vsi->back->hw;
1853         u32 val;
1854
1855 #define X722_EEPROM_SCOPE_LIMIT 0x5B9FFF
1856         if (hw->mac.type == I40E_MAC_X722) {
1857                 val = X722_EEPROM_SCOPE_LIMIT + 1;
1858                 return val;
1859         }
1860         val = (rd32(hw, I40E_GLPCI_LBARCTRL)
1861                 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK)
1862                 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT;
1863         /* register returns value in power of 2, 64Kbyte chunks. */
1864         val = (64 * 1024) * BIT(val);
1865         return val;
1866 }
1867
1868 static int i40e_set_eeprom(struct net_device *netdev,
1869                            struct ethtool_eeprom *eeprom, u8 *bytes)
1870 {
1871         struct i40e_netdev_priv *np = netdev_priv(netdev);
1872         struct i40e_hw *hw = &np->vsi->back->hw;
1873         struct i40e_pf *pf = np->vsi->back;
1874         struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1875         int ret_val = 0;
1876         int errno = 0;
1877         u32 magic;
1878
1879         /* normal ethtool set_eeprom is not supported */
1880         magic = hw->vendor_id | (hw->device_id << 16);
1881         if (eeprom->magic == magic)
1882                 errno = -EOPNOTSUPP;
1883         /* check for NVMUpdate access method */
1884         else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id)
1885                 errno = -EINVAL;
1886         else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
1887                  test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
1888                 errno = -EBUSY;
1889         else
1890                 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1891
1892         if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1893                 dev_info(&pf->pdev->dev,
1894                          "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1895                          ret_val, hw->aq.asq_last_status, errno,
1896                          (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1897                          cmd->offset, cmd->data_size);
1898
1899         return errno;
1900 }
1901
1902 static void i40e_get_drvinfo(struct net_device *netdev,
1903                              struct ethtool_drvinfo *drvinfo)
1904 {
1905         struct i40e_netdev_priv *np = netdev_priv(netdev);
1906         struct i40e_vsi *vsi = np->vsi;
1907         struct i40e_pf *pf = vsi->back;
1908
1909         strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver));
1910         strlcpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw),
1911                 sizeof(drvinfo->fw_version));
1912         strlcpy(drvinfo->bus_info, pci_name(pf->pdev),
1913                 sizeof(drvinfo->bus_info));
1914         drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN;
1915         if (pf->hw.pf_id == 0)
1916                 drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN;
1917 }
1918
1919 static void i40e_get_ringparam(struct net_device *netdev,
1920                                struct ethtool_ringparam *ring)
1921 {
1922         struct i40e_netdev_priv *np = netdev_priv(netdev);
1923         struct i40e_pf *pf = np->vsi->back;
1924         struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
1925
1926         ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1927         ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1928         ring->rx_mini_max_pending = 0;
1929         ring->rx_jumbo_max_pending = 0;
1930         ring->rx_pending = vsi->rx_rings[0]->count;
1931         ring->tx_pending = vsi->tx_rings[0]->count;
1932         ring->rx_mini_pending = 0;
1933         ring->rx_jumbo_pending = 0;
1934 }
1935
1936 static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index)
1937 {
1938         if (i40e_enabled_xdp_vsi(vsi)) {
1939                 return index < vsi->num_queue_pairs ||
1940                         (index >= vsi->alloc_queue_pairs &&
1941                          index < vsi->alloc_queue_pairs + vsi->num_queue_pairs);
1942         }
1943
1944         return index < vsi->num_queue_pairs;
1945 }
1946
1947 static int i40e_set_ringparam(struct net_device *netdev,
1948                               struct ethtool_ringparam *ring)
1949 {
1950         struct i40e_ring *tx_rings = NULL, *rx_rings = NULL;
1951         struct i40e_netdev_priv *np = netdev_priv(netdev);
1952         struct i40e_hw *hw = &np->vsi->back->hw;
1953         struct i40e_vsi *vsi = np->vsi;
1954         struct i40e_pf *pf = vsi->back;
1955         u32 new_rx_count, new_tx_count;
1956         u16 tx_alloc_queue_pairs;
1957         int timeout = 50;
1958         int i, err = 0;
1959
1960         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
1961                 return -EINVAL;
1962
1963         if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1964             ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS ||
1965             ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1966             ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) {
1967                 netdev_info(netdev,
1968                             "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n",
1969                             ring->tx_pending, ring->rx_pending,
1970                             I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS);
1971                 return -EINVAL;
1972         }
1973
1974         new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1975         new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1976
1977         /* if nothing to do return success */
1978         if ((new_tx_count == vsi->tx_rings[0]->count) &&
1979             (new_rx_count == vsi->rx_rings[0]->count))
1980                 return 0;
1981
1982         /* If there is a AF_XDP page pool attached to any of Rx rings,
1983          * disallow changing the number of descriptors -- regardless
1984          * if the netdev is running or not.
1985          */
1986         if (i40e_xsk_any_rx_ring_enabled(vsi))
1987                 return -EBUSY;
1988
1989         while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) {
1990                 timeout--;
1991                 if (!timeout)
1992                         return -EBUSY;
1993                 usleep_range(1000, 2000);
1994         }
1995
1996         if (!netif_running(vsi->netdev)) {
1997                 /* simple case - set for the next time the netdev is started */
1998                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1999                         vsi->tx_rings[i]->count = new_tx_count;
2000                         vsi->rx_rings[i]->count = new_rx_count;
2001                         if (i40e_enabled_xdp_vsi(vsi))
2002                                 vsi->xdp_rings[i]->count = new_tx_count;
2003                 }
2004                 vsi->num_tx_desc = new_tx_count;
2005                 vsi->num_rx_desc = new_rx_count;
2006                 goto done;
2007         }
2008
2009         /* We can't just free everything and then setup again,
2010          * because the ISRs in MSI-X mode get passed pointers
2011          * to the Tx and Rx ring structs.
2012          */
2013
2014         /* alloc updated Tx and XDP Tx resources */
2015         tx_alloc_queue_pairs = vsi->alloc_queue_pairs *
2016                                (i40e_enabled_xdp_vsi(vsi) ? 2 : 1);
2017         if (new_tx_count != vsi->tx_rings[0]->count) {
2018                 netdev_info(netdev,
2019                             "Changing Tx descriptor count from %d to %d.\n",
2020                             vsi->tx_rings[0]->count, new_tx_count);
2021                 tx_rings = kcalloc(tx_alloc_queue_pairs,
2022                                    sizeof(struct i40e_ring), GFP_KERNEL);
2023                 if (!tx_rings) {
2024                         err = -ENOMEM;
2025                         goto done;
2026                 }
2027
2028                 for (i = 0; i < tx_alloc_queue_pairs; i++) {
2029                         if (!i40e_active_tx_ring_index(vsi, i))
2030                                 continue;
2031
2032                         tx_rings[i] = *vsi->tx_rings[i];
2033                         tx_rings[i].count = new_tx_count;
2034                         /* the desc and bi pointers will be reallocated in the
2035                          * setup call
2036                          */
2037                         tx_rings[i].desc = NULL;
2038                         tx_rings[i].rx_bi = NULL;
2039                         err = i40e_setup_tx_descriptors(&tx_rings[i]);
2040                         if (err) {
2041                                 while (i) {
2042                                         i--;
2043                                         if (!i40e_active_tx_ring_index(vsi, i))
2044                                                 continue;
2045                                         i40e_free_tx_resources(&tx_rings[i]);
2046                                 }
2047                                 kfree(tx_rings);
2048                                 tx_rings = NULL;
2049
2050                                 goto done;
2051                         }
2052                 }
2053         }
2054
2055         /* alloc updated Rx resources */
2056         if (new_rx_count != vsi->rx_rings[0]->count) {
2057                 netdev_info(netdev,
2058                             "Changing Rx descriptor count from %d to %d\n",
2059                             vsi->rx_rings[0]->count, new_rx_count);
2060                 rx_rings = kcalloc(vsi->alloc_queue_pairs,
2061                                    sizeof(struct i40e_ring), GFP_KERNEL);
2062                 if (!rx_rings) {
2063                         err = -ENOMEM;
2064                         goto free_tx;
2065                 }
2066
2067                 for (i = 0; i < vsi->num_queue_pairs; i++) {
2068                         u16 unused;
2069
2070                         /* clone ring and setup updated count */
2071                         rx_rings[i] = *vsi->rx_rings[i];
2072                         rx_rings[i].count = new_rx_count;
2073                         /* the desc and bi pointers will be reallocated in the
2074                          * setup call
2075                          */
2076                         rx_rings[i].desc = NULL;
2077                         rx_rings[i].rx_bi = NULL;
2078                         /* Clear cloned XDP RX-queue info before setup call */
2079                         memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq));
2080                         /* this is to allow wr32 to have something to write to
2081                          * during early allocation of Rx buffers
2082                          */
2083                         rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS;
2084                         err = i40e_setup_rx_descriptors(&rx_rings[i]);
2085                         if (err)
2086                                 goto rx_unwind;
2087                         err = i40e_alloc_rx_bi(&rx_rings[i]);
2088                         if (err)
2089                                 goto rx_unwind;
2090
2091                         /* now allocate the Rx buffers to make sure the OS
2092                          * has enough memory, any failure here means abort
2093                          */
2094                         unused = I40E_DESC_UNUSED(&rx_rings[i]);
2095                         err = i40e_alloc_rx_buffers(&rx_rings[i], unused);
2096 rx_unwind:
2097                         if (err) {
2098                                 do {
2099                                         i40e_free_rx_resources(&rx_rings[i]);
2100                                 } while (i--);
2101                                 kfree(rx_rings);
2102                                 rx_rings = NULL;
2103
2104                                 goto free_tx;
2105                         }
2106                 }
2107         }
2108
2109         /* Bring interface down, copy in the new ring info,
2110          * then restore the interface
2111          */
2112         i40e_down(vsi);
2113
2114         if (tx_rings) {
2115                 for (i = 0; i < tx_alloc_queue_pairs; i++) {
2116                         if (i40e_active_tx_ring_index(vsi, i)) {
2117                                 i40e_free_tx_resources(vsi->tx_rings[i]);
2118                                 *vsi->tx_rings[i] = tx_rings[i];
2119                         }
2120                 }
2121                 kfree(tx_rings);
2122                 tx_rings = NULL;
2123         }
2124
2125         if (rx_rings) {
2126                 for (i = 0; i < vsi->num_queue_pairs; i++) {
2127                         i40e_free_rx_resources(vsi->rx_rings[i]);
2128                         /* get the real tail offset */
2129                         rx_rings[i].tail = vsi->rx_rings[i]->tail;
2130                         /* this is to fake out the allocation routine
2131                          * into thinking it has to realloc everything
2132                          * but the recycling logic will let us re-use
2133                          * the buffers allocated above
2134                          */
2135                         rx_rings[i].next_to_use = 0;
2136                         rx_rings[i].next_to_clean = 0;
2137                         rx_rings[i].next_to_alloc = 0;
2138                         /* do a struct copy */
2139                         *vsi->rx_rings[i] = rx_rings[i];
2140                 }
2141                 kfree(rx_rings);
2142                 rx_rings = NULL;
2143         }
2144
2145         vsi->num_tx_desc = new_tx_count;
2146         vsi->num_rx_desc = new_rx_count;
2147         i40e_up(vsi);
2148
2149 free_tx:
2150         /* error cleanup if the Rx allocations failed after getting Tx */
2151         if (tx_rings) {
2152                 for (i = 0; i < tx_alloc_queue_pairs; i++) {
2153                         if (i40e_active_tx_ring_index(vsi, i))
2154                                 i40e_free_tx_resources(vsi->tx_rings[i]);
2155                 }
2156                 kfree(tx_rings);
2157                 tx_rings = NULL;
2158         }
2159
2160 done:
2161         clear_bit(__I40E_CONFIG_BUSY, pf->state);
2162
2163         return err;
2164 }
2165
2166 /**
2167  * i40e_get_stats_count - return the stats count for a device
2168  * @netdev: the netdev to return the count for
2169  *
2170  * Returns the total number of statistics for this netdev. Note that even
2171  * though this is a function, it is required that the count for a specific
2172  * netdev must never change. Basing the count on static values such as the
2173  * maximum number of queues or the device type is ok. However, the API for
2174  * obtaining stats is *not* safe against changes based on non-static
2175  * values such as the *current* number of queues, or runtime flags.
2176  *
2177  * If a statistic is not always enabled, return it as part of the count
2178  * anyways, always return its string, and report its value as zero.
2179  **/
2180 static int i40e_get_stats_count(struct net_device *netdev)
2181 {
2182         struct i40e_netdev_priv *np = netdev_priv(netdev);
2183         struct i40e_vsi *vsi = np->vsi;
2184         struct i40e_pf *pf = vsi->back;
2185         int stats_len;
2186
2187         if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1)
2188                 stats_len = I40E_PF_STATS_LEN;
2189         else
2190                 stats_len = I40E_VSI_STATS_LEN;
2191
2192         /* The number of stats reported for a given net_device must remain
2193          * constant throughout the life of that device.
2194          *
2195          * This is because the API for obtaining the size, strings, and stats
2196          * is spread out over three separate ethtool ioctls. There is no safe
2197          * way to lock the number of stats across these calls, so we must
2198          * assume that they will never change.
2199          *
2200          * Due to this, we report the maximum number of queues, even if not
2201          * every queue is currently configured. Since we always allocate
2202          * queues in pairs, we'll just use netdev->num_tx_queues * 2. This
2203          * works because the num_tx_queues is set at device creation and never
2204          * changes.
2205          */
2206         stats_len += I40E_QUEUE_STATS_LEN * 2 * netdev->num_tx_queues;
2207
2208         return stats_len;
2209 }
2210
2211 static int i40e_get_sset_count(struct net_device *netdev, int sset)
2212 {
2213         struct i40e_netdev_priv *np = netdev_priv(netdev);
2214         struct i40e_vsi *vsi = np->vsi;
2215         struct i40e_pf *pf = vsi->back;
2216
2217         switch (sset) {
2218         case ETH_SS_TEST:
2219                 return I40E_TEST_LEN;
2220         case ETH_SS_STATS:
2221                 return i40e_get_stats_count(netdev);
2222         case ETH_SS_PRIV_FLAGS:
2223                 return I40E_PRIV_FLAGS_STR_LEN +
2224                         (pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0);
2225         default:
2226                 return -EOPNOTSUPP;
2227         }
2228 }
2229
2230 /**
2231  * i40e_get_veb_tc_stats - copy VEB TC statistics to formatted structure
2232  * @tc: the TC statistics in VEB structure (veb->tc_stats)
2233  * @i: the index of traffic class in (veb->tc_stats) structure to copy
2234  *
2235  * Copy VEB TC statistics from structure of arrays (veb->tc_stats) to
2236  * one dimensional structure i40e_cp_veb_tc_stats.
2237  * Produce formatted i40e_cp_veb_tc_stats structure of the VEB TC
2238  * statistics for the given TC.
2239  **/
2240 static struct i40e_cp_veb_tc_stats
2241 i40e_get_veb_tc_stats(struct i40e_veb_tc_stats *tc, unsigned int i)
2242 {
2243         struct i40e_cp_veb_tc_stats veb_tc = {
2244                 .tc_rx_packets = tc->tc_rx_packets[i],
2245                 .tc_rx_bytes = tc->tc_rx_bytes[i],
2246                 .tc_tx_packets = tc->tc_tx_packets[i],
2247                 .tc_tx_bytes = tc->tc_tx_bytes[i],
2248         };
2249
2250         return veb_tc;
2251 }
2252
2253 /**
2254  * i40e_get_pfc_stats - copy HW PFC statistics to formatted structure
2255  * @pf: the PF device structure
2256  * @i: the priority value to copy
2257  *
2258  * The PFC stats are found as arrays in pf->stats, which is not easy to pass
2259  * into i40e_add_ethtool_stats. Produce a formatted i40e_pfc_stats structure
2260  * of the PFC stats for the given priority.
2261  **/
2262 static inline struct i40e_pfc_stats
2263 i40e_get_pfc_stats(struct i40e_pf *pf, unsigned int i)
2264 {
2265 #define I40E_GET_PFC_STAT(stat, priority) \
2266         .stat = pf->stats.stat[priority]
2267
2268         struct i40e_pfc_stats pfc = {
2269                 I40E_GET_PFC_STAT(priority_xon_rx, i),
2270                 I40E_GET_PFC_STAT(priority_xoff_rx, i),
2271                 I40E_GET_PFC_STAT(priority_xon_tx, i),
2272                 I40E_GET_PFC_STAT(priority_xoff_tx, i),
2273                 I40E_GET_PFC_STAT(priority_xon_2_xoff, i),
2274         };
2275         return pfc;
2276 }
2277
2278 /**
2279  * i40e_get_ethtool_stats - copy stat values into supplied buffer
2280  * @netdev: the netdev to collect stats for
2281  * @stats: ethtool stats command structure
2282  * @data: ethtool supplied buffer
2283  *
2284  * Copy the stats values for this netdev into the buffer. Expects data to be
2285  * pre-allocated to the size returned by i40e_get_stats_count.. Note that all
2286  * statistics must be copied in a static order, and the count must not change
2287  * for a given netdev. See i40e_get_stats_count for more details.
2288  *
2289  * If a statistic is not currently valid (such as a disabled queue), this
2290  * function reports its value as zero.
2291  **/
2292 static void i40e_get_ethtool_stats(struct net_device *netdev,
2293                                    struct ethtool_stats *stats, u64 *data)
2294 {
2295         struct i40e_netdev_priv *np = netdev_priv(netdev);
2296         struct i40e_vsi *vsi = np->vsi;
2297         struct i40e_pf *pf = vsi->back;
2298         struct i40e_veb *veb = NULL;
2299         unsigned int i;
2300         bool veb_stats;
2301         u64 *p = data;
2302
2303         i40e_update_stats(vsi);
2304
2305         i40e_add_ethtool_stats(&data, i40e_get_vsi_stats_struct(vsi),
2306                                i40e_gstrings_net_stats);
2307
2308         i40e_add_ethtool_stats(&data, vsi, i40e_gstrings_misc_stats);
2309
2310         rcu_read_lock();
2311         for (i = 0; i < netdev->num_tx_queues; i++) {
2312                 i40e_add_queue_stats(&data, READ_ONCE(vsi->tx_rings[i]));
2313                 i40e_add_queue_stats(&data, READ_ONCE(vsi->rx_rings[i]));
2314         }
2315         rcu_read_unlock();
2316
2317         if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
2318                 goto check_data_pointer;
2319
2320         veb_stats = ((pf->lan_veb != I40E_NO_VEB) &&
2321                      (pf->lan_veb < I40E_MAX_VEB) &&
2322                      (pf->flags & I40E_FLAG_VEB_STATS_ENABLED));
2323
2324         if (veb_stats) {
2325                 veb = pf->veb[pf->lan_veb];
2326                 i40e_update_veb_stats(veb);
2327         }
2328
2329         /* If veb stats aren't enabled, pass NULL instead of the veb so that
2330          * we initialize stats to zero and update the data pointer
2331          * intelligently
2332          */
2333         i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL,
2334                                i40e_gstrings_veb_stats);
2335
2336         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
2337                 if (veb_stats) {
2338                         struct i40e_cp_veb_tc_stats veb_tc =
2339                                 i40e_get_veb_tc_stats(&veb->tc_stats, i);
2340
2341                         i40e_add_ethtool_stats(&data, &veb_tc,
2342                                                i40e_gstrings_veb_tc_stats);
2343                 } else {
2344                         i40e_add_ethtool_stats(&data, NULL,
2345                                                i40e_gstrings_veb_tc_stats);
2346                 }
2347
2348         i40e_add_ethtool_stats(&data, pf, i40e_gstrings_stats);
2349
2350         for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
2351                 struct i40e_pfc_stats pfc = i40e_get_pfc_stats(pf, i);
2352
2353                 i40e_add_ethtool_stats(&data, &pfc, i40e_gstrings_pfc_stats);
2354         }
2355
2356 check_data_pointer:
2357         WARN_ONCE(data - p != i40e_get_stats_count(netdev),
2358                   "ethtool stats count mismatch!");
2359 }
2360
2361 /**
2362  * i40e_get_stat_strings - copy stat strings into supplied buffer
2363  * @netdev: the netdev to collect strings for
2364  * @data: supplied buffer to copy strings into
2365  *
2366  * Copy the strings related to stats for this netdev. Expects data to be
2367  * pre-allocated with the size reported by i40e_get_stats_count. Note that the
2368  * strings must be copied in a static order and the total count must not
2369  * change for a given netdev. See i40e_get_stats_count for more details.
2370  **/
2371 static void i40e_get_stat_strings(struct net_device *netdev, u8 *data)
2372 {
2373         struct i40e_netdev_priv *np = netdev_priv(netdev);
2374         struct i40e_vsi *vsi = np->vsi;
2375         struct i40e_pf *pf = vsi->back;
2376         unsigned int i;
2377         u8 *p = data;
2378
2379         i40e_add_stat_strings(&data, i40e_gstrings_net_stats);
2380
2381         i40e_add_stat_strings(&data, i40e_gstrings_misc_stats);
2382
2383         for (i = 0; i < netdev->num_tx_queues; i++) {
2384                 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats,
2385                                       "tx", i);
2386                 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats,
2387                                       "rx", i);
2388         }
2389
2390         if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
2391                 goto check_data_pointer;
2392
2393         i40e_add_stat_strings(&data, i40e_gstrings_veb_stats);
2394
2395         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
2396                 i40e_add_stat_strings(&data, i40e_gstrings_veb_tc_stats, i);
2397
2398         i40e_add_stat_strings(&data, i40e_gstrings_stats);
2399
2400         for (i = 0; i < I40E_MAX_USER_PRIORITY; i++)
2401                 i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i);
2402
2403 check_data_pointer:
2404         WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN,
2405                   "stat strings count mismatch!");
2406 }
2407
2408 static void i40e_get_priv_flag_strings(struct net_device *netdev, u8 *data)
2409 {
2410         struct i40e_netdev_priv *np = netdev_priv(netdev);
2411         struct i40e_vsi *vsi = np->vsi;
2412         struct i40e_pf *pf = vsi->back;
2413         unsigned int i;
2414         u8 *p = data;
2415
2416         for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++)
2417                 ethtool_sprintf(&p, i40e_gstrings_priv_flags[i].flag_string);
2418         if (pf->hw.pf_id != 0)
2419                 return;
2420         for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++)
2421                 ethtool_sprintf(&p, i40e_gl_gstrings_priv_flags[i].flag_string);
2422 }
2423
2424 static void i40e_get_strings(struct net_device *netdev, u32 stringset,
2425                              u8 *data)
2426 {
2427         switch (stringset) {
2428         case ETH_SS_TEST:
2429                 memcpy(data, i40e_gstrings_test,
2430                        I40E_TEST_LEN * ETH_GSTRING_LEN);
2431                 break;
2432         case ETH_SS_STATS:
2433                 i40e_get_stat_strings(netdev, data);
2434                 break;
2435         case ETH_SS_PRIV_FLAGS:
2436                 i40e_get_priv_flag_strings(netdev, data);
2437                 break;
2438         default:
2439                 break;
2440         }
2441 }
2442
2443 static int i40e_get_ts_info(struct net_device *dev,
2444                             struct ethtool_ts_info *info)
2445 {
2446         struct i40e_pf *pf = i40e_netdev_to_pf(dev);
2447
2448         /* only report HW timestamping if PTP is enabled */
2449         if (!(pf->flags & I40E_FLAG_PTP))
2450                 return ethtool_op_get_ts_info(dev, info);
2451
2452         info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
2453                                 SOF_TIMESTAMPING_RX_SOFTWARE |
2454                                 SOF_TIMESTAMPING_SOFTWARE |
2455                                 SOF_TIMESTAMPING_TX_HARDWARE |
2456                                 SOF_TIMESTAMPING_RX_HARDWARE |
2457                                 SOF_TIMESTAMPING_RAW_HARDWARE;
2458
2459         if (pf->ptp_clock)
2460                 info->phc_index = ptp_clock_index(pf->ptp_clock);
2461         else
2462                 info->phc_index = -1;
2463
2464         info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
2465
2466         info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
2467                            BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
2468                            BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
2469                            BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ);
2470
2471         if (pf->hw_features & I40E_HW_PTP_L4_CAPABLE)
2472                 info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
2473                                     BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
2474                                     BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) |
2475                                     BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
2476                                     BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) |
2477                                     BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
2478                                     BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
2479                                     BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ);
2480
2481         return 0;
2482 }
2483
2484 static u64 i40e_link_test(struct net_device *netdev, u64 *data)
2485 {
2486         struct i40e_netdev_priv *np = netdev_priv(netdev);
2487         struct i40e_pf *pf = np->vsi->back;
2488         i40e_status status;
2489         bool link_up = false;
2490
2491         netif_info(pf, hw, netdev, "link test\n");
2492         status = i40e_get_link_status(&pf->hw, &link_up);
2493         if (status) {
2494                 netif_err(pf, drv, netdev, "link query timed out, please retry test\n");
2495                 *data = 1;
2496                 return *data;
2497         }
2498
2499         if (link_up)
2500                 *data = 0;
2501         else
2502                 *data = 1;
2503
2504         return *data;
2505 }
2506
2507 static u64 i40e_reg_test(struct net_device *netdev, u64 *data)
2508 {
2509         struct i40e_netdev_priv *np = netdev_priv(netdev);
2510         struct i40e_pf *pf = np->vsi->back;
2511
2512         netif_info(pf, hw, netdev, "register test\n");
2513         *data = i40e_diag_reg_test(&pf->hw);
2514
2515         return *data;
2516 }
2517
2518 static u64 i40e_eeprom_test(struct net_device *netdev, u64 *data)
2519 {
2520         struct i40e_netdev_priv *np = netdev_priv(netdev);
2521         struct i40e_pf *pf = np->vsi->back;
2522
2523         netif_info(pf, hw, netdev, "eeprom test\n");
2524         *data = i40e_diag_eeprom_test(&pf->hw);
2525
2526         /* forcebly clear the NVM Update state machine */
2527         pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT;
2528
2529         return *data;
2530 }
2531
2532 static u64 i40e_intr_test(struct net_device *netdev, u64 *data)
2533 {
2534         struct i40e_netdev_priv *np = netdev_priv(netdev);
2535         struct i40e_pf *pf = np->vsi->back;
2536         u16 swc_old = pf->sw_int_count;
2537
2538         netif_info(pf, hw, netdev, "interrupt test\n");
2539         wr32(&pf->hw, I40E_PFINT_DYN_CTL0,
2540              (I40E_PFINT_DYN_CTL0_INTENA_MASK |
2541               I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK |
2542               I40E_PFINT_DYN_CTL0_ITR_INDX_MASK |
2543               I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK |
2544               I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK));
2545         usleep_range(1000, 2000);
2546         *data = (swc_old == pf->sw_int_count);
2547
2548         return *data;
2549 }
2550
2551 static inline bool i40e_active_vfs(struct i40e_pf *pf)
2552 {
2553         struct i40e_vf *vfs = pf->vf;
2554         int i;
2555
2556         for (i = 0; i < pf->num_alloc_vfs; i++)
2557                 if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states))
2558                         return true;
2559         return false;
2560 }
2561
2562 static inline bool i40e_active_vmdqs(struct i40e_pf *pf)
2563 {
2564         return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2);
2565 }
2566
2567 static void i40e_diag_test(struct net_device *netdev,
2568                            struct ethtool_test *eth_test, u64 *data)
2569 {
2570         struct i40e_netdev_priv *np = netdev_priv(netdev);
2571         bool if_running = netif_running(netdev);
2572         struct i40e_pf *pf = np->vsi->back;
2573
2574         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
2575                 /* Offline tests */
2576                 netif_info(pf, drv, netdev, "offline testing starting\n");
2577
2578                 set_bit(__I40E_TESTING, pf->state);
2579
2580                 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) {
2581                         dev_warn(&pf->pdev->dev,
2582                                  "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");
2583                         data[I40E_ETH_TEST_REG]         = 1;
2584                         data[I40E_ETH_TEST_EEPROM]      = 1;
2585                         data[I40E_ETH_TEST_INTR]        = 1;
2586                         data[I40E_ETH_TEST_LINK]        = 1;
2587                         eth_test->flags |= ETH_TEST_FL_FAILED;
2588                         clear_bit(__I40E_TESTING, pf->state);
2589                         goto skip_ol_tests;
2590                 }
2591
2592                 /* If the device is online then take it offline */
2593                 if (if_running)
2594                         /* indicate we're in test mode */
2595                         i40e_close(netdev);
2596                 else
2597                         /* This reset does not affect link - if it is
2598                          * changed to a type of reset that does affect
2599                          * link then the following link test would have
2600                          * to be moved to before the reset
2601                          */
2602                         i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
2603
2604                 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
2605                         eth_test->flags |= ETH_TEST_FL_FAILED;
2606
2607                 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM]))
2608                         eth_test->flags |= ETH_TEST_FL_FAILED;
2609
2610                 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR]))
2611                         eth_test->flags |= ETH_TEST_FL_FAILED;
2612
2613                 /* run reg test last, a reset is required after it */
2614                 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG]))
2615                         eth_test->flags |= ETH_TEST_FL_FAILED;
2616
2617                 clear_bit(__I40E_TESTING, pf->state);
2618                 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
2619
2620                 if (if_running)
2621                         i40e_open(netdev);
2622         } else {
2623                 /* Online tests */
2624                 netif_info(pf, drv, netdev, "online testing starting\n");
2625
2626                 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
2627                         eth_test->flags |= ETH_TEST_FL_FAILED;
2628
2629                 /* Offline only tests, not run in online; pass by default */
2630                 data[I40E_ETH_TEST_REG] = 0;
2631                 data[I40E_ETH_TEST_EEPROM] = 0;
2632                 data[I40E_ETH_TEST_INTR] = 0;
2633         }
2634
2635 skip_ol_tests:
2636
2637         netif_info(pf, drv, netdev, "testing finished\n");
2638 }
2639
2640 static void i40e_get_wol(struct net_device *netdev,
2641                          struct ethtool_wolinfo *wol)
2642 {
2643         struct i40e_netdev_priv *np = netdev_priv(netdev);
2644         struct i40e_pf *pf = np->vsi->back;
2645         struct i40e_hw *hw = &pf->hw;
2646         u16 wol_nvm_bits;
2647
2648         /* NVM bit on means WoL disabled for the port */
2649         i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
2650         if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) {
2651                 wol->supported = 0;
2652                 wol->wolopts = 0;
2653         } else {
2654                 wol->supported = WAKE_MAGIC;
2655                 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0);
2656         }
2657 }
2658
2659 /**
2660  * i40e_set_wol - set the WakeOnLAN configuration
2661  * @netdev: the netdev in question
2662  * @wol: the ethtool WoL setting data
2663  **/
2664 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
2665 {
2666         struct i40e_netdev_priv *np = netdev_priv(netdev);
2667         struct i40e_pf *pf = np->vsi->back;
2668         struct i40e_vsi *vsi = np->vsi;
2669         struct i40e_hw *hw = &pf->hw;
2670         u16 wol_nvm_bits;
2671
2672         /* WoL not supported if this isn't the controlling PF on the port */
2673         if (hw->partition_id != 1) {
2674                 i40e_partition_setting_complaint(pf);
2675                 return -EOPNOTSUPP;
2676         }
2677
2678         if (vsi != pf->vsi[pf->lan_vsi])
2679                 return -EOPNOTSUPP;
2680
2681         /* NVM bit on means WoL disabled for the port */
2682         i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
2683         if (BIT(hw->port) & wol_nvm_bits)
2684                 return -EOPNOTSUPP;
2685
2686         /* only magic packet is supported */
2687         if (wol->wolopts & ~WAKE_MAGIC)
2688                 return -EOPNOTSUPP;
2689
2690         /* is this a new value? */
2691         if (pf->wol_en != !!wol->wolopts) {
2692                 pf->wol_en = !!wol->wolopts;
2693                 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en);
2694         }
2695
2696         return 0;
2697 }
2698
2699 static int i40e_set_phys_id(struct net_device *netdev,
2700                             enum ethtool_phys_id_state state)
2701 {
2702         struct i40e_netdev_priv *np = netdev_priv(netdev);
2703         i40e_status ret = 0;
2704         struct i40e_pf *pf = np->vsi->back;
2705         struct i40e_hw *hw = &pf->hw;
2706         int blink_freq = 2;
2707         u16 temp_status;
2708
2709         switch (state) {
2710         case ETHTOOL_ID_ACTIVE:
2711                 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) {
2712                         pf->led_status = i40e_led_get(hw);
2713                 } else {
2714                         if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE))
2715                                 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL,
2716                                                       NULL);
2717                         ret = i40e_led_get_phy(hw, &temp_status,
2718                                                &pf->phy_led_val);
2719                         pf->led_status = temp_status;
2720                 }
2721                 return blink_freq;
2722         case ETHTOOL_ID_ON:
2723                 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS))
2724                         i40e_led_set(hw, 0xf, false);
2725                 else
2726                         ret = i40e_led_set_phy(hw, true, pf->led_status, 0);
2727                 break;
2728         case ETHTOOL_ID_OFF:
2729                 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS))
2730                         i40e_led_set(hw, 0x0, false);
2731                 else
2732                         ret = i40e_led_set_phy(hw, false, pf->led_status, 0);
2733                 break;
2734         case ETHTOOL_ID_INACTIVE:
2735                 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) {
2736                         i40e_led_set(hw, pf->led_status, false);
2737                 } else {
2738                         ret = i40e_led_set_phy(hw, false, pf->led_status,
2739                                                (pf->phy_led_val |
2740                                                I40E_PHY_LED_MODE_ORIG));
2741                         if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE))
2742                                 i40e_aq_set_phy_debug(hw, 0, NULL);
2743                 }
2744                 break;
2745         default:
2746                 break;
2747         }
2748         if (ret)
2749                 return -ENOENT;
2750         else
2751                 return 0;
2752 }
2753
2754 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt
2755  * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also
2756  * 125us (8000 interrupts per second) == ITR(62)
2757  */
2758
2759 /**
2760  * __i40e_get_coalesce - get per-queue coalesce settings
2761  * @netdev: the netdev to check
2762  * @ec: ethtool coalesce data structure
2763  * @queue: which queue to pick
2764  *
2765  * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs
2766  * are per queue. If queue is <0 then we default to queue 0 as the
2767  * representative value.
2768  **/
2769 static int __i40e_get_coalesce(struct net_device *netdev,
2770                                struct ethtool_coalesce *ec,
2771                                int queue)
2772 {
2773         struct i40e_netdev_priv *np = netdev_priv(netdev);
2774         struct i40e_ring *rx_ring, *tx_ring;
2775         struct i40e_vsi *vsi = np->vsi;
2776
2777         ec->tx_max_coalesced_frames_irq = vsi->work_limit;
2778         ec->rx_max_coalesced_frames_irq = vsi->work_limit;
2779
2780         /* rx and tx usecs has per queue value. If user doesn't specify the
2781          * queue, return queue 0's value to represent.
2782          */
2783         if (queue < 0)
2784                 queue = 0;
2785         else if (queue >= vsi->num_queue_pairs)
2786                 return -EINVAL;
2787
2788         rx_ring = vsi->rx_rings[queue];
2789         tx_ring = vsi->tx_rings[queue];
2790
2791         if (ITR_IS_DYNAMIC(rx_ring->itr_setting))
2792                 ec->use_adaptive_rx_coalesce = 1;
2793
2794         if (ITR_IS_DYNAMIC(tx_ring->itr_setting))
2795                 ec->use_adaptive_tx_coalesce = 1;
2796
2797         ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
2798         ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
2799
2800         /* we use the _usecs_high to store/set the interrupt rate limit
2801          * that the hardware supports, that almost but not quite
2802          * fits the original intent of the ethtool variable,
2803          * the rx_coalesce_usecs_high limits total interrupts
2804          * per second from both tx/rx sources.
2805          */
2806         ec->rx_coalesce_usecs_high = vsi->int_rate_limit;
2807         ec->tx_coalesce_usecs_high = vsi->int_rate_limit;
2808
2809         return 0;
2810 }
2811
2812 /**
2813  * i40e_get_coalesce - get a netdev's coalesce settings
2814  * @netdev: the netdev to check
2815  * @ec: ethtool coalesce data structure
2816  *
2817  * Gets the coalesce settings for a particular netdev. Note that if user has
2818  * modified per-queue settings, this only guarantees to represent queue 0. See
2819  * __i40e_get_coalesce for more details.
2820  **/
2821 static int i40e_get_coalesce(struct net_device *netdev,
2822                              struct ethtool_coalesce *ec)
2823 {
2824         return __i40e_get_coalesce(netdev, ec, -1);
2825 }
2826
2827 /**
2828  * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue
2829  * @netdev: netdev structure
2830  * @ec: ethtool's coalesce settings
2831  * @queue: the particular queue to read
2832  *
2833  * Will read a specific queue's coalesce settings
2834  **/
2835 static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue,
2836                                        struct ethtool_coalesce *ec)
2837 {
2838         return __i40e_get_coalesce(netdev, ec, queue);
2839 }
2840
2841 /**
2842  * i40e_set_itr_per_queue - set ITR values for specific queue
2843  * @vsi: the VSI to set values for
2844  * @ec: coalesce settings from ethtool
2845  * @queue: the queue to modify
2846  *
2847  * Change the ITR settings for a specific queue.
2848  **/
2849 static void i40e_set_itr_per_queue(struct i40e_vsi *vsi,
2850                                    struct ethtool_coalesce *ec,
2851                                    int queue)
2852 {
2853         struct i40e_ring *rx_ring = vsi->rx_rings[queue];
2854         struct i40e_ring *tx_ring = vsi->tx_rings[queue];
2855         struct i40e_pf *pf = vsi->back;
2856         struct i40e_hw *hw = &pf->hw;
2857         struct i40e_q_vector *q_vector;
2858         u16 intrl;
2859
2860         intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit);
2861
2862         rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs);
2863         tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs);
2864
2865         if (ec->use_adaptive_rx_coalesce)
2866                 rx_ring->itr_setting |= I40E_ITR_DYNAMIC;
2867         else
2868                 rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;
2869
2870         if (ec->use_adaptive_tx_coalesce)
2871                 tx_ring->itr_setting |= I40E_ITR_DYNAMIC;
2872         else
2873                 tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;
2874
2875         q_vector = rx_ring->q_vector;
2876         q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting);
2877
2878         q_vector = tx_ring->q_vector;
2879         q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting);
2880
2881         /* The interrupt handler itself will take care of programming
2882          * the Tx and Rx ITR values based on the values we have entered
2883          * into the q_vector, no need to write the values now.
2884          */
2885
2886         wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl);
2887         i40e_flush(hw);
2888 }
2889
2890 /**
2891  * __i40e_set_coalesce - set coalesce settings for particular queue
2892  * @netdev: the netdev to change
2893  * @ec: ethtool coalesce settings
2894  * @queue: the queue to change
2895  *
2896  * Sets the coalesce settings for a particular queue.
2897  **/
2898 static int __i40e_set_coalesce(struct net_device *netdev,
2899                                struct ethtool_coalesce *ec,
2900                                int queue)
2901 {
2902         struct i40e_netdev_priv *np = netdev_priv(netdev);
2903         u16 intrl_reg, cur_rx_itr, cur_tx_itr;
2904         struct i40e_vsi *vsi = np->vsi;
2905         struct i40e_pf *pf = vsi->back;
2906         int i;
2907
2908         if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq)
2909                 vsi->work_limit = ec->tx_max_coalesced_frames_irq;
2910
2911         if (queue < 0) {
2912                 cur_rx_itr = vsi->rx_rings[0]->itr_setting;
2913                 cur_tx_itr = vsi->tx_rings[0]->itr_setting;
2914         } else if (queue < vsi->num_queue_pairs) {
2915                 cur_rx_itr = vsi->rx_rings[queue]->itr_setting;
2916                 cur_tx_itr = vsi->tx_rings[queue]->itr_setting;
2917         } else {
2918                 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n",
2919                            vsi->num_queue_pairs - 1);
2920                 return -EINVAL;
2921         }
2922
2923         cur_tx_itr &= ~I40E_ITR_DYNAMIC;
2924         cur_rx_itr &= ~I40E_ITR_DYNAMIC;
2925
2926         /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */
2927         if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) {
2928                 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n");
2929                 return -EINVAL;
2930         }
2931
2932         if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) {
2933                 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n",
2934                            INTRL_REG_TO_USEC(I40E_MAX_INTRL));
2935                 return -EINVAL;
2936         }
2937
2938         if (ec->rx_coalesce_usecs != cur_rx_itr &&
2939             ec->use_adaptive_rx_coalesce) {
2940                 netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n");
2941                 return -EINVAL;
2942         }
2943
2944         if (ec->rx_coalesce_usecs > I40E_MAX_ITR) {
2945                 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
2946                 return -EINVAL;
2947         }
2948
2949         if (ec->tx_coalesce_usecs != cur_tx_itr &&
2950             ec->use_adaptive_tx_coalesce) {
2951                 netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n");
2952                 return -EINVAL;
2953         }
2954
2955         if (ec->tx_coalesce_usecs > I40E_MAX_ITR) {
2956                 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n");
2957                 return -EINVAL;
2958         }
2959
2960         if (ec->use_adaptive_rx_coalesce && !cur_rx_itr)
2961                 ec->rx_coalesce_usecs = I40E_MIN_ITR;
2962
2963         if (ec->use_adaptive_tx_coalesce && !cur_tx_itr)
2964                 ec->tx_coalesce_usecs = I40E_MIN_ITR;
2965
2966         intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high);
2967         vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg);
2968         if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) {
2969                 netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n",
2970                            vsi->int_rate_limit);
2971         }
2972
2973         /* rx and tx usecs has per queue value. If user doesn't specify the
2974          * queue, apply to all queues.
2975          */
2976         if (queue < 0) {
2977                 for (i = 0; i < vsi->num_queue_pairs; i++)
2978                         i40e_set_itr_per_queue(vsi, ec, i);
2979         } else {
2980                 i40e_set_itr_per_queue(vsi, ec, queue);
2981         }
2982
2983         return 0;
2984 }
2985
2986 /**
2987  * i40e_set_coalesce - set coalesce settings for every queue on the netdev
2988  * @netdev: the netdev to change
2989  * @ec: ethtool coalesce settings
2990  *
2991  * This will set each queue to the same coalesce settings.
2992  **/
2993 static int i40e_set_coalesce(struct net_device *netdev,
2994                              struct ethtool_coalesce *ec)
2995 {
2996         return __i40e_set_coalesce(netdev, ec, -1);
2997 }
2998
2999 /**
3000  * i40e_set_per_queue_coalesce - set specific queue's coalesce settings
3001  * @netdev: the netdev to change
3002  * @ec: ethtool's coalesce settings
3003  * @queue: the queue to change
3004  *
3005  * Sets the specified queue's coalesce settings.
3006  **/
3007 static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue,
3008                                        struct ethtool_coalesce *ec)
3009 {
3010         return __i40e_set_coalesce(netdev, ec, queue);
3011 }
3012
3013 /**
3014  * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type
3015  * @pf: pointer to the physical function struct
3016  * @cmd: ethtool rxnfc command
3017  *
3018  * Returns Success if the flow is supported, else Invalid Input.
3019  **/
3020 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd)
3021 {
3022         struct i40e_hw *hw = &pf->hw;
3023         u8 flow_pctype = 0;
3024         u64 i_set = 0;
3025
3026         cmd->data = 0;
3027
3028         switch (cmd->flow_type) {
3029         case TCP_V4_FLOW:
3030                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
3031                 break;
3032         case UDP_V4_FLOW:
3033                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
3034                 break;
3035         case TCP_V6_FLOW:
3036                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
3037                 break;
3038         case UDP_V6_FLOW:
3039                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
3040                 break;
3041         case SCTP_V4_FLOW:
3042         case AH_ESP_V4_FLOW:
3043         case AH_V4_FLOW:
3044         case ESP_V4_FLOW:
3045         case IPV4_FLOW:
3046         case SCTP_V6_FLOW:
3047         case AH_ESP_V6_FLOW:
3048         case AH_V6_FLOW:
3049         case ESP_V6_FLOW:
3050         case IPV6_FLOW:
3051                 /* Default is src/dest for IP, no matter the L4 hashing */
3052                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
3053                 break;
3054         default:
3055                 return -EINVAL;
3056         }
3057
3058         /* Read flow based hash input set register */
3059         if (flow_pctype) {
3060                 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0,
3061                                               flow_pctype)) |
3062                         ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1,
3063                                                flow_pctype)) << 32);
3064         }
3065
3066         /* Process bits of hash input set */
3067         if (i_set) {
3068                 if (i_set & I40E_L4_SRC_MASK)
3069                         cmd->data |= RXH_L4_B_0_1;
3070                 if (i_set & I40E_L4_DST_MASK)
3071                         cmd->data |= RXH_L4_B_2_3;
3072
3073                 if (cmd->flow_type == TCP_V4_FLOW ||
3074                     cmd->flow_type == UDP_V4_FLOW) {
3075                         if (i_set & I40E_L3_SRC_MASK)
3076                                 cmd->data |= RXH_IP_SRC;
3077                         if (i_set & I40E_L3_DST_MASK)
3078                                 cmd->data |= RXH_IP_DST;
3079                 } else if (cmd->flow_type == TCP_V6_FLOW ||
3080                           cmd->flow_type == UDP_V6_FLOW) {
3081                         if (i_set & I40E_L3_V6_SRC_MASK)
3082                                 cmd->data |= RXH_IP_SRC;
3083                         if (i_set & I40E_L3_V6_DST_MASK)
3084                                 cmd->data |= RXH_IP_DST;
3085                 }
3086         }
3087
3088         return 0;
3089 }
3090
3091 /**
3092  * i40e_check_mask - Check whether a mask field is set
3093  * @mask: the full mask value
3094  * @field: mask of the field to check
3095  *
3096  * If the given mask is fully set, return positive value. If the mask for the
3097  * field is fully unset, return zero. Otherwise return a negative error code.
3098  **/
3099 static int i40e_check_mask(u64 mask, u64 field)
3100 {
3101         u64 value = mask & field;
3102
3103         if (value == field)
3104                 return 1;
3105         else if (!value)
3106                 return 0;
3107         else
3108                 return -1;
3109 }
3110
3111 /**
3112  * i40e_parse_rx_flow_user_data - Deconstruct user-defined data
3113  * @fsp: pointer to rx flow specification
3114  * @data: pointer to userdef data structure for storage
3115  *
3116  * Read the user-defined data and deconstruct the value into a structure. No
3117  * other code should read the user-defined data, so as to ensure that every
3118  * place consistently reads the value correctly.
3119  *
3120  * The user-defined field is a 64bit Big Endian format value, which we
3121  * deconstruct by reading bits or bit fields from it. Single bit flags shall
3122  * be defined starting from the highest bits, while small bit field values
3123  * shall be defined starting from the lowest bits.
3124  *
3125  * Returns 0 if the data is valid, and non-zero if the userdef data is invalid
3126  * and the filter should be rejected. The data structure will always be
3127  * modified even if FLOW_EXT is not set.
3128  *
3129  **/
3130 static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
3131                                         struct i40e_rx_flow_userdef *data)
3132 {
3133         u64 value, mask;
3134         int valid;
3135
3136         /* Zero memory first so it's always consistent. */
3137         memset(data, 0, sizeof(*data));
3138
3139         if (!(fsp->flow_type & FLOW_EXT))
3140                 return 0;
3141
3142         value = be64_to_cpu(*((__be64 *)fsp->h_ext.data));
3143         mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data));
3144
3145 #define I40E_USERDEF_FLEX_WORD          GENMASK_ULL(15, 0)
3146 #define I40E_USERDEF_FLEX_OFFSET        GENMASK_ULL(31, 16)
3147 #define I40E_USERDEF_FLEX_FILTER        GENMASK_ULL(31, 0)
3148
3149         valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER);
3150         if (valid < 0) {
3151                 return -EINVAL;
3152         } else if (valid) {
3153                 data->flex_word = value & I40E_USERDEF_FLEX_WORD;
3154                 data->flex_offset =
3155                         (value & I40E_USERDEF_FLEX_OFFSET) >> 16;
3156                 data->flex_filter = true;
3157         }
3158
3159         return 0;
3160 }
3161
3162 /**
3163  * i40e_fill_rx_flow_user_data - Fill in user-defined data field
3164  * @fsp: pointer to rx_flow specification
3165  * @data: pointer to return userdef data
3166  *
3167  * Reads the userdef data structure and properly fills in the user defined
3168  * fields of the rx_flow_spec.
3169  **/
3170 static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
3171                                         struct i40e_rx_flow_userdef *data)
3172 {
3173         u64 value = 0, mask = 0;
3174
3175         if (data->flex_filter) {
3176                 value |= data->flex_word;
3177                 value |= (u64)data->flex_offset << 16;
3178                 mask |= I40E_USERDEF_FLEX_FILTER;
3179         }
3180
3181         if (value || mask)
3182                 fsp->flow_type |= FLOW_EXT;
3183
3184         *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value);
3185         *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask);
3186 }
3187
3188 /**
3189  * i40e_get_ethtool_fdir_all - Populates the rule count of a command
3190  * @pf: Pointer to the physical function struct
3191  * @cmd: The command to get or set Rx flow classification rules
3192  * @rule_locs: Array of used rule locations
3193  *
3194  * This function populates both the total and actual rule count of
3195  * the ethtool flow classification command
3196  *
3197  * Returns 0 on success or -EMSGSIZE if entry not found
3198  **/
3199 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf,
3200                                      struct ethtool_rxnfc *cmd,
3201                                      u32 *rule_locs)
3202 {
3203         struct i40e_fdir_filter *rule;
3204         struct hlist_node *node2;
3205         int cnt = 0;
3206
3207         /* report total rule count */
3208         cmd->data = i40e_get_fd_cnt_all(pf);
3209
3210         hlist_for_each_entry_safe(rule, node2,
3211                                   &pf->fdir_filter_list, fdir_node) {
3212                 if (cnt == cmd->rule_cnt)
3213                         return -EMSGSIZE;
3214
3215                 rule_locs[cnt] = rule->fd_id;
3216                 cnt++;
3217         }
3218
3219         cmd->rule_cnt = cnt;
3220
3221         return 0;
3222 }
3223
3224 /**
3225  * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow
3226  * @pf: Pointer to the physical function struct
3227  * @cmd: The command to get or set Rx flow classification rules
3228  *
3229  * This function looks up a filter based on the Rx flow classification
3230  * command and fills the flow spec info for it if found
3231  *
3232  * Returns 0 on success or -EINVAL if filter not found
3233  **/
3234 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf,
3235                                        struct ethtool_rxnfc *cmd)
3236 {
3237         struct ethtool_rx_flow_spec *fsp =
3238                         (struct ethtool_rx_flow_spec *)&cmd->fs;
3239         struct i40e_rx_flow_userdef userdef = {0};
3240         struct i40e_fdir_filter *rule = NULL;
3241         struct hlist_node *node2;
3242         u64 input_set;
3243         u16 index;
3244
3245         hlist_for_each_entry_safe(rule, node2,
3246                                   &pf->fdir_filter_list, fdir_node) {
3247                 if (fsp->location <= rule->fd_id)
3248                         break;
3249         }
3250
3251         if (!rule || fsp->location != rule->fd_id)
3252                 return -EINVAL;
3253
3254         fsp->flow_type = rule->flow_type;
3255         if (fsp->flow_type == IP_USER_FLOW) {
3256                 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
3257                 fsp->h_u.usr_ip4_spec.proto = 0;
3258                 fsp->m_u.usr_ip4_spec.proto = 0;
3259         }
3260
3261         if (fsp->flow_type == IPV6_USER_FLOW ||
3262             fsp->flow_type == UDP_V6_FLOW ||
3263             fsp->flow_type == TCP_V6_FLOW ||
3264             fsp->flow_type == SCTP_V6_FLOW) {
3265                 /* Reverse the src and dest notion, since the HW views them
3266                  * from Tx perspective where as the user expects it from
3267                  * Rx filter view.
3268                  */
3269                 fsp->h_u.tcp_ip6_spec.psrc = rule->dst_port;
3270                 fsp->h_u.tcp_ip6_spec.pdst = rule->src_port;
3271                 memcpy(fsp->h_u.tcp_ip6_spec.ip6dst, rule->src_ip6,
3272                        sizeof(__be32) * 4);
3273                 memcpy(fsp->h_u.tcp_ip6_spec.ip6src, rule->dst_ip6,
3274                        sizeof(__be32) * 4);
3275         } else {
3276                 /* Reverse the src and dest notion, since the HW views them
3277                  * from Tx perspective where as the user expects it from
3278                  * Rx filter view.
3279                  */
3280                 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port;
3281                 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port;
3282                 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip;
3283                 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip;
3284         }
3285
3286         switch (rule->flow_type) {
3287         case SCTP_V4_FLOW:
3288                 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP;
3289                 break;
3290         case TCP_V4_FLOW:
3291                 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
3292                 break;
3293         case UDP_V4_FLOW:
3294                 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
3295                 break;
3296         case SCTP_V6_FLOW:
3297                 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP;
3298                 break;
3299         case TCP_V6_FLOW:
3300                 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
3301                 break;
3302         case UDP_V6_FLOW:
3303                 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
3304                 break;
3305         case IP_USER_FLOW:
3306                 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;
3307                 break;
3308         case IPV6_USER_FLOW:
3309                 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER;
3310                 break;
3311         default:
3312                 /* If we have stored a filter with a flow type not listed here
3313                  * it is almost certainly a driver bug. WARN(), and then
3314                  * assign the input_set as if all fields are enabled to avoid
3315                  * reading unassigned memory.
3316                  */
3317                 WARN(1, "Missing input set index for flow_type %d\n",
3318                      rule->flow_type);
3319                 input_set = 0xFFFFFFFFFFFFFFFFULL;
3320                 goto no_input_set;
3321         }
3322
3323         input_set = i40e_read_fd_input_set(pf, index);
3324
3325 no_input_set:
3326         if (input_set & I40E_L3_V6_SRC_MASK) {
3327                 fsp->m_u.tcp_ip6_spec.ip6src[0] = htonl(0xFFFFFFFF);
3328                 fsp->m_u.tcp_ip6_spec.ip6src[1] = htonl(0xFFFFFFFF);
3329                 fsp->m_u.tcp_ip6_spec.ip6src[2] = htonl(0xFFFFFFFF);
3330                 fsp->m_u.tcp_ip6_spec.ip6src[3] = htonl(0xFFFFFFFF);
3331         }
3332
3333         if (input_set & I40E_L3_V6_DST_MASK) {
3334                 fsp->m_u.tcp_ip6_spec.ip6dst[0] = htonl(0xFFFFFFFF);
3335                 fsp->m_u.tcp_ip6_spec.ip6dst[1] = htonl(0xFFFFFFFF);
3336                 fsp->m_u.tcp_ip6_spec.ip6dst[2] = htonl(0xFFFFFFFF);
3337                 fsp->m_u.tcp_ip6_spec.ip6dst[3] = htonl(0xFFFFFFFF);
3338         }
3339
3340         if (input_set & I40E_L3_SRC_MASK)
3341                 fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF);
3342
3343         if (input_set & I40E_L3_DST_MASK)
3344                 fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF);
3345
3346         if (input_set & I40E_L4_SRC_MASK)
3347                 fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF);
3348
3349         if (input_set & I40E_L4_DST_MASK)
3350                 fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF);
3351
3352         if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET)
3353                 fsp->ring_cookie = RX_CLS_FLOW_DISC;
3354         else
3355                 fsp->ring_cookie = rule->q_index;
3356
3357         if (rule->vlan_tag) {
3358                 fsp->h_ext.vlan_etype = rule->vlan_etype;
3359                 fsp->m_ext.vlan_etype = htons(0xFFFF);
3360                 fsp->h_ext.vlan_tci = rule->vlan_tag;
3361                 fsp->m_ext.vlan_tci = htons(0xFFFF);
3362                 fsp->flow_type |= FLOW_EXT;
3363         }
3364
3365         if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) {
3366                 struct i40e_vsi *vsi;
3367
3368                 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi);
3369                 if (vsi && vsi->type == I40E_VSI_SRIOV) {
3370                         /* VFs are zero-indexed by the driver, but ethtool
3371                          * expects them to be one-indexed, so add one here
3372                          */
3373                         u64 ring_vf = vsi->vf_id + 1;
3374
3375                         ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF;
3376                         fsp->ring_cookie |= ring_vf;
3377                 }
3378         }
3379
3380         if (rule->flex_filter) {
3381                 userdef.flex_filter = true;
3382                 userdef.flex_word = be16_to_cpu(rule->flex_word);
3383                 userdef.flex_offset = rule->flex_offset;
3384         }
3385
3386         i40e_fill_rx_flow_user_data(fsp, &userdef);
3387
3388         return 0;
3389 }
3390
3391 /**
3392  * i40e_get_rxnfc - command to get RX flow classification rules
3393  * @netdev: network interface device structure
3394  * @cmd: ethtool rxnfc command
3395  * @rule_locs: pointer to store rule data
3396  *
3397  * Returns Success if the command is supported.
3398  **/
3399 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
3400                           u32 *rule_locs)
3401 {
3402         struct i40e_netdev_priv *np = netdev_priv(netdev);
3403         struct i40e_vsi *vsi = np->vsi;
3404         struct i40e_pf *pf = vsi->back;
3405         int ret = -EOPNOTSUPP;
3406
3407         switch (cmd->cmd) {
3408         case ETHTOOL_GRXRINGS:
3409                 cmd->data = vsi->rss_size;
3410                 ret = 0;
3411                 break;
3412         case ETHTOOL_GRXFH:
3413                 ret = i40e_get_rss_hash_opts(pf, cmd);
3414                 break;
3415         case ETHTOOL_GRXCLSRLCNT:
3416                 cmd->rule_cnt = pf->fdir_pf_active_filters;
3417                 /* report total rule count */
3418                 cmd->data = i40e_get_fd_cnt_all(pf);
3419                 ret = 0;
3420                 break;
3421         case ETHTOOL_GRXCLSRULE:
3422                 ret = i40e_get_ethtool_fdir_entry(pf, cmd);
3423                 break;
3424         case ETHTOOL_GRXCLSRLALL:
3425                 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs);
3426                 break;
3427         default:
3428                 break;
3429         }
3430
3431         return ret;
3432 }
3433
3434 /**
3435  * i40e_get_rss_hash_bits - Read RSS Hash bits from register
3436  * @nfc: pointer to user request
3437  * @i_setc: bits currently set
3438  *
3439  * Returns value of bits to be set per user request
3440  **/
3441 static u64 i40e_get_rss_hash_bits(struct ethtool_rxnfc *nfc, u64 i_setc)
3442 {
3443         u64 i_set = i_setc;
3444         u64 src_l3 = 0, dst_l3 = 0;
3445
3446         if (nfc->data & RXH_L4_B_0_1)
3447                 i_set |= I40E_L4_SRC_MASK;
3448         else
3449                 i_set &= ~I40E_L4_SRC_MASK;
3450         if (nfc->data & RXH_L4_B_2_3)
3451                 i_set |= I40E_L4_DST_MASK;
3452         else
3453                 i_set &= ~I40E_L4_DST_MASK;
3454
3455         if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) {
3456                 src_l3 = I40E_L3_V6_SRC_MASK;
3457                 dst_l3 = I40E_L3_V6_DST_MASK;
3458         } else if (nfc->flow_type == TCP_V4_FLOW ||
3459                   nfc->flow_type == UDP_V4_FLOW) {
3460                 src_l3 = I40E_L3_SRC_MASK;
3461                 dst_l3 = I40E_L3_DST_MASK;
3462         } else {
3463                 /* Any other flow type are not supported here */
3464                 return i_set;
3465         }
3466
3467         if (nfc->data & RXH_IP_SRC)
3468                 i_set |= src_l3;
3469         else
3470                 i_set &= ~src_l3;
3471         if (nfc->data & RXH_IP_DST)
3472                 i_set |= dst_l3;
3473         else
3474                 i_set &= ~dst_l3;
3475
3476         return i_set;
3477 }
3478
3479 /**
3480  * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash
3481  * @pf: pointer to the physical function struct
3482  * @nfc: ethtool rxnfc command
3483  *
3484  * Returns Success if the flow input set is supported.
3485  **/
3486 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
3487 {
3488         struct i40e_hw *hw = &pf->hw;
3489         u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) |
3490                    ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32);
3491         u8 flow_pctype = 0;
3492         u64 i_set, i_setc;
3493
3494         if (pf->flags & I40E_FLAG_MFP_ENABLED) {
3495                 dev_err(&pf->pdev->dev,
3496                         "Change of RSS hash input set is not supported when MFP mode is enabled\n");
3497                 return -EOPNOTSUPP;
3498         }
3499
3500         /* RSS does not support anything other than hashing
3501          * to queues on src and dst IPs and ports
3502          */
3503         if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
3504                           RXH_L4_B_0_1 | RXH_L4_B_2_3))
3505                 return -EINVAL;
3506
3507         switch (nfc->flow_type) {
3508         case TCP_V4_FLOW:
3509                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
3510                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3511                         hena |=
3512                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK);
3513                 break;
3514         case TCP_V6_FLOW:
3515                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
3516                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3517                         hena |=
3518                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK);
3519                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3520                         hena |=
3521                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK);
3522                 break;
3523         case UDP_V4_FLOW:
3524                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
3525                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3526                         hena |=
3527                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) |
3528                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP);
3529
3530                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
3531                 break;
3532         case UDP_V6_FLOW:
3533                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
3534                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3535                         hena |=
3536                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) |
3537                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP);
3538
3539                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
3540                 break;
3541         case AH_ESP_V4_FLOW:
3542         case AH_V4_FLOW:
3543         case ESP_V4_FLOW:
3544         case SCTP_V4_FLOW:
3545                 if ((nfc->data & RXH_L4_B_0_1) ||
3546                     (nfc->data & RXH_L4_B_2_3))
3547                         return -EINVAL;
3548                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);
3549                 break;
3550         case AH_ESP_V6_FLOW:
3551         case AH_V6_FLOW:
3552         case ESP_V6_FLOW:
3553         case SCTP_V6_FLOW:
3554                 if ((nfc->data & RXH_L4_B_0_1) ||
3555                     (nfc->data & RXH_L4_B_2_3))
3556                         return -EINVAL;
3557                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);
3558                 break;
3559         case IPV4_FLOW:
3560                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) |
3561                         BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
3562                 break;
3563         case IPV6_FLOW:
3564                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) |
3565                         BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
3566                 break;
3567         default:
3568                 return -EINVAL;
3569         }
3570
3571         if (flow_pctype) {
3572                 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0,
3573                                                flow_pctype)) |
3574                         ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1,
3575                                                flow_pctype)) << 32);
3576                 i_set = i40e_get_rss_hash_bits(nfc, i_setc);
3577                 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_pctype),
3578                                   (u32)i_set);
3579                 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_pctype),
3580                                   (u32)(i_set >> 32));
3581                 hena |= BIT_ULL(flow_pctype);
3582         }
3583
3584         i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena);
3585         i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));
3586         i40e_flush(hw);
3587
3588         return 0;
3589 }
3590
3591 /**
3592  * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry
3593  * @vsi: Pointer to the targeted VSI
3594  * @input: The filter to update or NULL to indicate deletion
3595  * @sw_idx: Software index to the filter
3596  * @cmd: The command to get or set Rx flow classification rules
3597  *
3598  * This function updates (or deletes) a Flow Director entry from
3599  * the hlist of the corresponding PF
3600  *
3601  * Returns 0 on success
3602  **/
3603 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi,
3604                                           struct i40e_fdir_filter *input,
3605                                           u16 sw_idx,
3606                                           struct ethtool_rxnfc *cmd)
3607 {
3608         struct i40e_fdir_filter *rule, *parent;
3609         struct i40e_pf *pf = vsi->back;
3610         struct hlist_node *node2;
3611         int err = -EINVAL;
3612
3613         parent = NULL;
3614         rule = NULL;
3615
3616         hlist_for_each_entry_safe(rule, node2,
3617                                   &pf->fdir_filter_list, fdir_node) {
3618                 /* hash found, or no matching entry */
3619                 if (rule->fd_id >= sw_idx)
3620                         break;
3621                 parent = rule;
3622         }
3623
3624         /* if there is an old rule occupying our place remove it */
3625         if (rule && (rule->fd_id == sw_idx)) {
3626                 /* Remove this rule, since we're either deleting it, or
3627                  * replacing it.
3628                  */
3629                 err = i40e_add_del_fdir(vsi, rule, false);
3630                 hlist_del(&rule->fdir_node);
3631                 kfree(rule);
3632                 pf->fdir_pf_active_filters--;
3633         }
3634
3635         /* If we weren't given an input, this is a delete, so just return the
3636          * error code indicating if there was an entry at the requested slot
3637          */
3638         if (!input)
3639                 return err;
3640
3641         /* Otherwise, install the new rule as requested */
3642         INIT_HLIST_NODE(&input->fdir_node);
3643
3644         /* add filter to the list */
3645         if (parent)
3646                 hlist_add_behind(&input->fdir_node, &parent->fdir_node);
3647         else
3648                 hlist_add_head(&input->fdir_node,
3649                                &pf->fdir_filter_list);
3650
3651         /* update counts */
3652         pf->fdir_pf_active_filters++;
3653
3654         return 0;
3655 }
3656
3657 /**
3658  * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table
3659  * @pf: pointer to PF structure
3660  *
3661  * This function searches the list of filters and determines which FLX_PIT
3662  * entries are still required. It will prune any entries which are no longer
3663  * in use after the deletion.
3664  **/
3665 static void i40e_prune_flex_pit_list(struct i40e_pf *pf)
3666 {
3667         struct i40e_flex_pit *entry, *tmp;
3668         struct i40e_fdir_filter *rule;
3669
3670         /* First, we'll check the l3 table */
3671         list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) {
3672                 bool found = false;
3673
3674                 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) {
3675                         if (rule->flow_type != IP_USER_FLOW)
3676                                 continue;
3677                         if (rule->flex_filter &&
3678                             rule->flex_offset == entry->src_offset) {
3679                                 found = true;
3680                                 break;
3681                         }
3682                 }
3683
3684                 /* If we didn't find the filter, then we can prune this entry
3685                  * from the list.
3686                  */
3687                 if (!found) {
3688                         list_del(&entry->list);
3689                         kfree(entry);
3690                 }
3691         }
3692
3693         /* Followed by the L4 table */
3694         list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) {
3695                 bool found = false;
3696
3697                 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) {
3698                         /* Skip this filter if it's L3, since we already
3699                          * checked those in the above loop
3700                          */
3701                         if (rule->flow_type == IP_USER_FLOW)
3702                                 continue;
3703                         if (rule->flex_filter &&
3704                             rule->flex_offset == entry->src_offset) {
3705                                 found = true;
3706                                 break;
3707                         }
3708                 }
3709
3710                 /* If we didn't find the filter, then we can prune this entry
3711                  * from the list.
3712                  */
3713                 if (!found) {
3714                         list_del(&entry->list);
3715                         kfree(entry);
3716                 }
3717         }
3718 }
3719
3720 /**
3721  * i40e_del_fdir_entry - Deletes a Flow Director filter entry
3722  * @vsi: Pointer to the targeted VSI
3723  * @cmd: The command to get or set Rx flow classification rules
3724  *
3725  * The function removes a Flow Director filter entry from the
3726  * hlist of the corresponding PF
3727  *
3728  * Returns 0 on success
3729  */
3730 static int i40e_del_fdir_entry(struct i40e_vsi *vsi,
3731                                struct ethtool_rxnfc *cmd)
3732 {
3733         struct ethtool_rx_flow_spec *fsp =
3734                 (struct ethtool_rx_flow_spec *)&cmd->fs;
3735         struct i40e_pf *pf = vsi->back;
3736         int ret = 0;
3737
3738         if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
3739             test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
3740                 return -EBUSY;
3741
3742         if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))
3743                 return -EBUSY;
3744
3745         ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd);
3746
3747         i40e_prune_flex_pit_list(pf);
3748
3749         i40e_fdir_check_and_reenable(pf);
3750         return ret;
3751 }
3752
3753 /**
3754  * i40e_unused_pit_index - Find an unused PIT index for given list
3755  * @pf: the PF data structure
3756  *
3757  * Find the first unused flexible PIT index entry. We search both the L3 and
3758  * L4 flexible PIT lists so that the returned index is unique and unused by
3759  * either currently programmed L3 or L4 filters. We use a bit field as storage
3760  * to track which indexes are already used.
3761  **/
3762 static u8 i40e_unused_pit_index(struct i40e_pf *pf)
3763 {
3764         unsigned long available_index = 0xFF;
3765         struct i40e_flex_pit *entry;
3766
3767         /* We need to make sure that the new index isn't in use by either L3
3768          * or L4 filters so that IP_USER_FLOW filters can program both L3 and
3769          * L4 to use the same index.
3770          */
3771
3772         list_for_each_entry(entry, &pf->l4_flex_pit_list, list)
3773                 clear_bit(entry->pit_index, &available_index);
3774
3775         list_for_each_entry(entry, &pf->l3_flex_pit_list, list)
3776                 clear_bit(entry->pit_index, &available_index);
3777
3778         return find_first_bit(&available_index, 8);
3779 }
3780
3781 /**
3782  * i40e_find_flex_offset - Find an existing flex src_offset
3783  * @flex_pit_list: L3 or L4 flex PIT list
3784  * @src_offset: new src_offset to find
3785  *
3786  * Searches the flex_pit_list for an existing offset. If no offset is
3787  * currently programmed, then this will return an ERR_PTR if there is no space
3788  * to add a new offset, otherwise it returns NULL.
3789  **/
3790 static
3791 struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list,
3792                                             u16 src_offset)
3793 {
3794         struct i40e_flex_pit *entry;
3795         int size = 0;
3796
3797         /* Search for the src_offset first. If we find a matching entry
3798          * already programmed, we can simply re-use it.
3799          */
3800         list_for_each_entry(entry, flex_pit_list, list) {
3801                 size++;
3802                 if (entry->src_offset == src_offset)
3803                         return entry;
3804         }
3805
3806         /* If we haven't found an entry yet, then the provided src offset has
3807          * not yet been programmed. We will program the src offset later on,
3808          * but we need to indicate whether there is enough space to do so
3809          * here. We'll make use of ERR_PTR for this purpose.
3810          */
3811         if (size >= I40E_FLEX_PIT_TABLE_SIZE)
3812                 return ERR_PTR(-ENOSPC);
3813
3814         return NULL;
3815 }
3816
3817 /**
3818  * i40e_add_flex_offset - Add src_offset to flex PIT table list
3819  * @flex_pit_list: L3 or L4 flex PIT list
3820  * @src_offset: new src_offset to add
3821  * @pit_index: the PIT index to program
3822  *
3823  * This function programs the new src_offset to the list. It is expected that
3824  * i40e_find_flex_offset has already been tried and returned NULL, indicating
3825  * that this offset is not programmed, and that the list has enough space to
3826  * store another offset.
3827  *
3828  * Returns 0 on success, and negative value on error.
3829  **/
3830 static int i40e_add_flex_offset(struct list_head *flex_pit_list,
3831                                 u16 src_offset,
3832                                 u8 pit_index)
3833 {
3834         struct i40e_flex_pit *new_pit, *entry;
3835
3836         new_pit = kzalloc(sizeof(*entry), GFP_KERNEL);
3837         if (!new_pit)
3838                 return -ENOMEM;
3839
3840         new_pit->src_offset = src_offset;
3841         new_pit->pit_index = pit_index;
3842
3843         /* We need to insert this item such that the list is sorted by
3844          * src_offset in ascending order.
3845          */
3846         list_for_each_entry(entry, flex_pit_list, list) {
3847                 if (new_pit->src_offset < entry->src_offset) {
3848                         list_add_tail(&new_pit->list, &entry->list);
3849                         return 0;
3850                 }
3851
3852                 /* If we found an entry with our offset already programmed we
3853                  * can simply return here, after freeing the memory. However,
3854                  * if the pit_index does not match we need to report an error.
3855                  */
3856                 if (new_pit->src_offset == entry->src_offset) {
3857                         int err = 0;
3858
3859                         /* If the PIT index is not the same we can't re-use
3860                          * the entry, so we must report an error.
3861                          */
3862                         if (new_pit->pit_index != entry->pit_index)
3863                                 err = -EINVAL;
3864
3865                         kfree(new_pit);
3866                         return err;
3867                 }
3868         }
3869
3870         /* If we reached here, then we haven't yet added the item. This means
3871          * that we should add the item at the end of the list.
3872          */
3873         list_add_tail(&new_pit->list, flex_pit_list);
3874         return 0;
3875 }
3876
3877 /**
3878  * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table
3879  * @pf: Pointer to the PF structure
3880  * @flex_pit_list: list of flexible src offsets in use
3881  * @flex_pit_start: index to first entry for this section of the table
3882  *
3883  * In order to handle flexible data, the hardware uses a table of values
3884  * called the FLX_PIT table. This table is used to indicate which sections of
3885  * the input correspond to what PIT index values. Unfortunately, hardware is
3886  * very restrictive about programming this table. Entries must be ordered by
3887  * src_offset in ascending order, without duplicates. Additionally, unused
3888  * entries must be set to the unused index value, and must have valid size and
3889  * length according to the src_offset ordering.
3890  *
3891  * This function will reprogram the FLX_PIT register from a book-keeping
3892  * structure that we guarantee is already ordered correctly, and has no more
3893  * than 3 entries.
3894  *
3895  * To make things easier, we only support flexible values of one word length,
3896  * rather than allowing variable length flexible values.
3897  **/
3898 static void __i40e_reprogram_flex_pit(struct i40e_pf *pf,
3899                                       struct list_head *flex_pit_list,
3900                                       int flex_pit_start)
3901 {
3902         struct i40e_flex_pit *entry = NULL;
3903         u16 last_offset = 0;
3904         int i = 0, j = 0;
3905
3906         /* First, loop over the list of flex PIT entries, and reprogram the
3907          * registers.
3908          */
3909         list_for_each_entry(entry, flex_pit_list, list) {
3910                 /* We have to be careful when programming values for the
3911                  * largest SRC_OFFSET value. It is possible that adding
3912                  * additional empty values at the end would overflow the space
3913                  * for the SRC_OFFSET in the FLX_PIT register. To avoid this,
3914                  * we check here and add the empty values prior to adding the
3915                  * largest value.
3916                  *
3917                  * To determine this, we will use a loop from i+1 to 3, which
3918                  * will determine whether the unused entries would have valid
3919                  * SRC_OFFSET. Note that there cannot be extra entries past
3920                  * this value, because the only valid values would have been
3921                  * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not
3922                  * have been added to the list in the first place.
3923                  */
3924                 for (j = i + 1; j < 3; j++) {
3925                         u16 offset = entry->src_offset + j;
3926                         int index = flex_pit_start + i;
3927                         u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED,
3928                                                        1,
3929                                                        offset - 3);
3930
3931                         if (offset > I40E_MAX_FLEX_SRC_OFFSET) {
3932                                 i40e_write_rx_ctl(&pf->hw,
3933                                                   I40E_PRTQF_FLX_PIT(index),
3934                                                   value);
3935                                 i++;
3936                         }
3937                 }
3938
3939                 /* Now, we can program the actual value into the table */
3940                 i40e_write_rx_ctl(&pf->hw,
3941                                   I40E_PRTQF_FLX_PIT(flex_pit_start + i),
3942                                   I40E_FLEX_PREP_VAL(entry->pit_index + 50,
3943                                                      1,
3944                                                      entry->src_offset));
3945                 i++;
3946         }
3947
3948         /* In order to program the last entries in the table, we need to
3949          * determine the valid offset. If the list is empty, we'll just start
3950          * with 0. Otherwise, we'll start with the last item offset and add 1.
3951          * This ensures that all entries have valid sizes. If we don't do this
3952          * correctly, the hardware will disable flexible field parsing.
3953          */
3954         if (!list_empty(flex_pit_list))
3955                 last_offset = list_prev_entry(entry, list)->src_offset + 1;
3956
3957         for (; i < 3; i++, last_offset++) {
3958                 i40e_write_rx_ctl(&pf->hw,
3959                                   I40E_PRTQF_FLX_PIT(flex_pit_start + i),
3960                                   I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED,
3961                                                      1,
3962                                                      last_offset));
3963         }
3964 }
3965
3966 /**
3967  * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change
3968  * @pf: pointer to the PF structure
3969  *
3970  * This function reprograms both the L3 and L4 FLX_PIT tables. See the
3971  * internal helper function for implementation details.
3972  **/
3973 static void i40e_reprogram_flex_pit(struct i40e_pf *pf)
3974 {
3975         __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list,
3976                                   I40E_FLEX_PIT_IDX_START_L3);
3977
3978         __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list,
3979                                   I40E_FLEX_PIT_IDX_START_L4);
3980
3981         /* We also need to program the L3 and L4 GLQF ORT register */
3982         i40e_write_rx_ctl(&pf->hw,
3983                           I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX),
3984                           I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3,
3985                                             3, 1));
3986
3987         i40e_write_rx_ctl(&pf->hw,
3988                           I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX),
3989                           I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4,
3990                                             3, 1));
3991 }
3992
3993 /**
3994  * i40e_flow_str - Converts a flow_type into a human readable string
3995  * @fsp: the flow specification
3996  *
3997  * Currently only flow types we support are included here, and the string
3998  * value attempts to match what ethtool would use to configure this flow type.
3999  **/
4000 static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp)
4001 {
4002         switch (fsp->flow_type & ~FLOW_EXT) {
4003         case TCP_V4_FLOW:
4004                 return "tcp4";
4005         case UDP_V4_FLOW:
4006                 return "udp4";
4007         case SCTP_V4_FLOW:
4008                 return "sctp4";
4009         case IP_USER_FLOW:
4010                 return "ip4";
4011         case TCP_V6_FLOW:
4012                 return "tcp6";
4013         case UDP_V6_FLOW:
4014                 return "udp6";
4015         case SCTP_V6_FLOW:
4016                 return "sctp6";
4017         case IPV6_USER_FLOW:
4018                 return "ip6";
4019         default:
4020                 return "unknown";
4021         }
4022 }
4023
4024 /**
4025  * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index
4026  * @pit_index: PIT index to convert
4027  *
4028  * Returns the mask for a given PIT index. Will return 0 if the pit_index is
4029  * of range.
4030  **/
4031 static u64 i40e_pit_index_to_mask(int pit_index)
4032 {
4033         switch (pit_index) {
4034         case 0:
4035                 return I40E_FLEX_50_MASK;
4036         case 1:
4037                 return I40E_FLEX_51_MASK;
4038         case 2:
4039                 return I40E_FLEX_52_MASK;
4040         case 3:
4041                 return I40E_FLEX_53_MASK;
4042         case 4:
4043                 return I40E_FLEX_54_MASK;
4044         case 5:
4045                 return I40E_FLEX_55_MASK;
4046         case 6:
4047                 return I40E_FLEX_56_MASK;
4048         case 7:
4049                 return I40E_FLEX_57_MASK;
4050         default:
4051                 return 0;
4052         }
4053 }
4054
4055 /**
4056  * i40e_print_input_set - Show changes between two input sets
4057  * @vsi: the vsi being configured
4058  * @old: the old input set
4059  * @new: the new input set
4060  *
4061  * Print the difference between old and new input sets by showing which series
4062  * of words are toggled on or off. Only displays the bits we actually support
4063  * changing.
4064  **/
4065 static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new)
4066 {
4067         struct i40e_pf *pf = vsi->back;
4068         bool old_value, new_value;
4069         int i;
4070
4071         old_value = !!(old & I40E_L3_SRC_MASK);
4072         new_value = !!(new & I40E_L3_SRC_MASK);
4073         if (old_value != new_value)
4074                 netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n",
4075                            old_value ? "ON" : "OFF",
4076                            new_value ? "ON" : "OFF");
4077
4078         old_value = !!(old & I40E_L3_DST_MASK);
4079         new_value = !!(new & I40E_L3_DST_MASK);
4080         if (old_value != new_value)
4081                 netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n",
4082                            old_value ? "ON" : "OFF",
4083                            new_value ? "ON" : "OFF");
4084
4085         old_value = !!(old & I40E_L4_SRC_MASK);
4086         new_value = !!(new & I40E_L4_SRC_MASK);
4087         if (old_value != new_value)
4088                 netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n",
4089                            old_value ? "ON" : "OFF",
4090                            new_value ? "ON" : "OFF");
4091
4092         old_value = !!(old & I40E_L4_DST_MASK);
4093         new_value = !!(new & I40E_L4_DST_MASK);
4094         if (old_value != new_value)
4095                 netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n",
4096                            old_value ? "ON" : "OFF",
4097                            new_value ? "ON" : "OFF");
4098
4099         old_value = !!(old & I40E_VERIFY_TAG_MASK);
4100         new_value = !!(new & I40E_VERIFY_TAG_MASK);
4101         if (old_value != new_value)
4102                 netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n",
4103                            old_value ? "ON" : "OFF",
4104                            new_value ? "ON" : "OFF");
4105
4106         /* Show change of flexible filter entries */
4107         for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) {
4108                 u64 flex_mask = i40e_pit_index_to_mask(i);
4109
4110                 old_value = !!(old & flex_mask);
4111                 new_value = !!(new & flex_mask);
4112                 if (old_value != new_value)
4113                         netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n",
4114                                    i,
4115                                    old_value ? "ON" : "OFF",
4116                                    new_value ? "ON" : "OFF");
4117         }
4118
4119         netif_info(pf, drv, vsi->netdev, "  Current input set: %0llx\n",
4120                    old);
4121         netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n",
4122                    new);
4123 }
4124
4125 /**
4126  * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid
4127  * @vsi: pointer to the targeted VSI
4128  * @fsp: pointer to Rx flow specification
4129  * @userdef: userdefined data from flow specification
4130  *
4131  * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support
4132  * for partial matches exists with a few limitations. First, hardware only
4133  * supports masking by word boundary (2 bytes) and not per individual bit.
4134  * Second, hardware is limited to using one mask for a flow type and cannot
4135  * use a separate mask for each filter.
4136  *
4137  * To support these limitations, if we already have a configured filter for
4138  * the specified type, this function enforces that new filters of the type
4139  * match the configured input set. Otherwise, if we do not have a filter of
4140  * the specified type, we allow the input set to be updated to match the
4141  * desired filter.
4142  *
4143  * To help ensure that administrators understand why filters weren't displayed
4144  * as supported, we print a diagnostic message displaying how the input set
4145  * would change and warning to delete the preexisting filters if required.
4146  *
4147  * Returns 0 on successful input set match, and a negative return code on
4148  * failure.
4149  **/
4150 static int i40e_check_fdir_input_set(struct i40e_vsi *vsi,
4151                                      struct ethtool_rx_flow_spec *fsp,
4152                                      struct i40e_rx_flow_userdef *userdef)
4153 {
4154         static const __be32 ipv6_full_mask[4] = {cpu_to_be32(0xffffffff),
4155                 cpu_to_be32(0xffffffff), cpu_to_be32(0xffffffff),
4156                 cpu_to_be32(0xffffffff)};
4157         struct ethtool_tcpip6_spec *tcp_ip6_spec;
4158         struct ethtool_usrip6_spec *usr_ip6_spec;
4159         struct ethtool_tcpip4_spec *tcp_ip4_spec;
4160         struct ethtool_usrip4_spec *usr_ip4_spec;
4161         struct i40e_pf *pf = vsi->back;
4162         u64 current_mask, new_mask;
4163         bool new_flex_offset = false;
4164         bool flex_l3 = false;
4165         u16 *fdir_filter_count;
4166         u16 index, src_offset = 0;
4167         u8 pit_index = 0;
4168         int err;
4169
4170         switch (fsp->flow_type & ~FLOW_EXT) {
4171         case SCTP_V4_FLOW:
4172                 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP;
4173                 fdir_filter_count = &pf->fd_sctp4_filter_cnt;
4174                 break;
4175         case TCP_V4_FLOW:
4176                 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
4177                 fdir_filter_count = &pf->fd_tcp4_filter_cnt;
4178                 break;
4179         case UDP_V4_FLOW:
4180                 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
4181                 fdir_filter_count = &pf->fd_udp4_filter_cnt;
4182                 break;
4183         case SCTP_V6_FLOW:
4184                 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP;
4185                 fdir_filter_count = &pf->fd_sctp6_filter_cnt;
4186                 break;
4187         case TCP_V6_FLOW:
4188                 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
4189                 fdir_filter_count = &pf->fd_tcp6_filter_cnt;
4190                 break;
4191         case UDP_V6_FLOW:
4192                 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
4193                 fdir_filter_count = &pf->fd_udp6_filter_cnt;
4194                 break;
4195         case IP_USER_FLOW:
4196                 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;
4197                 fdir_filter_count = &pf->fd_ip4_filter_cnt;
4198                 flex_l3 = true;
4199                 break;
4200         case IPV6_USER_FLOW:
4201                 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER;
4202                 fdir_filter_count = &pf->fd_ip6_filter_cnt;
4203                 flex_l3 = true;
4204                 break;
4205         default:
4206                 return -EOPNOTSUPP;
4207         }
4208
4209         /* Read the current input set from register memory. */
4210         current_mask = i40e_read_fd_input_set(pf, index);
4211         new_mask = current_mask;
4212
4213         /* Determine, if any, the required changes to the input set in order
4214          * to support the provided mask.
4215          *
4216          * Hardware only supports masking at word (2 byte) granularity and does
4217          * not support full bitwise masking. This implementation simplifies
4218          * even further and only supports fully enabled or fully disabled
4219          * masks for each field, even though we could split the ip4src and
4220          * ip4dst fields.
4221          */
4222         switch (fsp->flow_type & ~FLOW_EXT) {
4223         case SCTP_V4_FLOW:
4224                 new_mask &= ~I40E_VERIFY_TAG_MASK;
4225                 fallthrough;
4226         case TCP_V4_FLOW:
4227         case UDP_V4_FLOW:
4228                 tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec;
4229
4230                 /* IPv4 source address */
4231                 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF))
4232                         new_mask |= I40E_L3_SRC_MASK;
4233                 else if (!tcp_ip4_spec->ip4src)
4234                         new_mask &= ~I40E_L3_SRC_MASK;
4235                 else
4236                         return -EOPNOTSUPP;
4237
4238                 /* IPv4 destination address */
4239                 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF))
4240                         new_mask |= I40E_L3_DST_MASK;
4241                 else if (!tcp_ip4_spec->ip4dst)
4242                         new_mask &= ~I40E_L3_DST_MASK;
4243                 else
4244                         return -EOPNOTSUPP;
4245
4246                 /* L4 source port */
4247                 if (tcp_ip4_spec->psrc == htons(0xFFFF))
4248                         new_mask |= I40E_L4_SRC_MASK;
4249                 else if (!tcp_ip4_spec->psrc)
4250                         new_mask &= ~I40E_L4_SRC_MASK;
4251                 else
4252                         return -EOPNOTSUPP;
4253
4254                 /* L4 destination port */
4255                 if (tcp_ip4_spec->pdst == htons(0xFFFF))
4256                         new_mask |= I40E_L4_DST_MASK;
4257                 else if (!tcp_ip4_spec->pdst)
4258                         new_mask &= ~I40E_L4_DST_MASK;
4259                 else
4260                         return -EOPNOTSUPP;
4261
4262                 /* Filtering on Type of Service is not supported. */
4263                 if (tcp_ip4_spec->tos)
4264                         return -EOPNOTSUPP;
4265
4266                 break;
4267         case SCTP_V6_FLOW:
4268                 new_mask &= ~I40E_VERIFY_TAG_MASK;
4269                 fallthrough;
4270         case TCP_V6_FLOW:
4271         case UDP_V6_FLOW:
4272                 tcp_ip6_spec = &fsp->m_u.tcp_ip6_spec;
4273
4274                 /* Check if user provided IPv6 source address. */
4275                 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6src,
4276                                     (struct in6_addr *)&ipv6_full_mask))
4277                         new_mask |= I40E_L3_V6_SRC_MASK;
4278                 else if (ipv6_addr_any((struct in6_addr *)
4279                                        &tcp_ip6_spec->ip6src))
4280                         new_mask &= ~I40E_L3_V6_SRC_MASK;
4281                 else
4282                         return -EOPNOTSUPP;
4283
4284                 /* Check if user provided destination address. */
4285                 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6dst,
4286                                     (struct in6_addr *)&ipv6_full_mask))
4287                         new_mask |= I40E_L3_V6_DST_MASK;
4288                 else if (ipv6_addr_any((struct in6_addr *)
4289                                        &tcp_ip6_spec->ip6dst))
4290                         new_mask &= ~I40E_L3_V6_DST_MASK;
4291                 else
4292                         return -EOPNOTSUPP;
4293
4294                 /* L4 source port */
4295                 if (tcp_ip6_spec->psrc == htons(0xFFFF))
4296                         new_mask |= I40E_L4_SRC_MASK;
4297                 else if (!tcp_ip6_spec->psrc)
4298                         new_mask &= ~I40E_L4_SRC_MASK;
4299                 else
4300                         return -EOPNOTSUPP;
4301
4302                 /* L4 destination port */
4303                 if (tcp_ip6_spec->pdst == htons(0xFFFF))
4304                         new_mask |= I40E_L4_DST_MASK;
4305                 else if (!tcp_ip6_spec->pdst)
4306                         new_mask &= ~I40E_L4_DST_MASK;
4307                 else
4308                         return -EOPNOTSUPP;
4309
4310                 /* Filtering on Traffic Classes is not supported. */
4311                 if (tcp_ip6_spec->tclass)
4312                         return -EOPNOTSUPP;
4313                 break;
4314         case IP_USER_FLOW:
4315                 usr_ip4_spec = &fsp->m_u.usr_ip4_spec;
4316
4317                 /* IPv4 source address */
4318                 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF))
4319                         new_mask |= I40E_L3_SRC_MASK;
4320                 else if (!usr_ip4_spec->ip4src)
4321                         new_mask &= ~I40E_L3_SRC_MASK;
4322                 else
4323                         return -EOPNOTSUPP;
4324
4325                 /* IPv4 destination address */
4326                 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF))
4327                         new_mask |= I40E_L3_DST_MASK;
4328                 else if (!usr_ip4_spec->ip4dst)
4329                         new_mask &= ~I40E_L3_DST_MASK;
4330                 else
4331                         return -EOPNOTSUPP;
4332
4333                 /* First 4 bytes of L4 header */
4334                 if (usr_ip4_spec->l4_4_bytes == htonl(0xFFFFFFFF))
4335                         new_mask |= I40E_L4_SRC_MASK | I40E_L4_DST_MASK;
4336                 else if (!usr_ip4_spec->l4_4_bytes)
4337                         new_mask &= ~(I40E_L4_SRC_MASK | I40E_L4_DST_MASK);
4338                 else
4339                         return -EOPNOTSUPP;
4340
4341                 /* Filtering on Type of Service is not supported. */
4342                 if (usr_ip4_spec->tos)
4343                         return -EOPNOTSUPP;
4344
4345                 /* Filtering on IP version is not supported */
4346                 if (usr_ip4_spec->ip_ver)
4347                         return -EINVAL;
4348
4349                 /* Filtering on L4 protocol is not supported */
4350                 if (usr_ip4_spec->proto)
4351                         return -EINVAL;
4352
4353                 break;
4354         case IPV6_USER_FLOW:
4355                 usr_ip6_spec = &fsp->m_u.usr_ip6_spec;
4356
4357                 /* Check if user provided IPv6 source address. */
4358                 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6src,
4359                                     (struct in6_addr *)&ipv6_full_mask))
4360                         new_mask |= I40E_L3_V6_SRC_MASK;
4361                 else if (ipv6_addr_any((struct in6_addr *)
4362                                        &usr_ip6_spec->ip6src))
4363                         new_mask &= ~I40E_L3_V6_SRC_MASK;
4364                 else
4365                         return -EOPNOTSUPP;
4366
4367                 /* Check if user provided destination address. */
4368                 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6dst,
4369                                     (struct in6_addr *)&ipv6_full_mask))
4370                         new_mask |= I40E_L3_V6_DST_MASK;
4371                 else if (ipv6_addr_any((struct in6_addr *)
4372                                        &usr_ip6_spec->ip6src))
4373                         new_mask &= ~I40E_L3_V6_DST_MASK;
4374                 else
4375                         return -EOPNOTSUPP;
4376
4377                 if (usr_ip6_spec->l4_4_bytes == htonl(0xFFFFFFFF))
4378                         new_mask |= I40E_L4_SRC_MASK | I40E_L4_DST_MASK;
4379                 else if (!usr_ip6_spec->l4_4_bytes)
4380                         new_mask &= ~(I40E_L4_SRC_MASK | I40E_L4_DST_MASK);
4381                 else
4382                         return -EOPNOTSUPP;
4383
4384                 /* Filtering on Traffic class is not supported. */
4385                 if (usr_ip6_spec->tclass)
4386                         return -EOPNOTSUPP;
4387
4388                 /* Filtering on L4 protocol is not supported */
4389                 if (usr_ip6_spec->l4_proto)
4390                         return -EINVAL;
4391
4392                 break;
4393         default:
4394                 return -EOPNOTSUPP;
4395         }
4396
4397         if (fsp->flow_type & FLOW_EXT) {
4398                 /* Allow only 802.1Q and no etype defined, as
4399                  * later it's modified to 0x8100
4400                  */
4401                 if (fsp->h_ext.vlan_etype != htons(ETH_P_8021Q) &&
4402                     fsp->h_ext.vlan_etype != 0)
4403                         return -EOPNOTSUPP;
4404                 if (fsp->m_ext.vlan_tci == htons(0xFFFF))
4405                         new_mask |= I40E_VLAN_SRC_MASK;
4406                 else
4407                         new_mask &= ~I40E_VLAN_SRC_MASK;
4408         }
4409
4410         /* First, clear all flexible filter entries */
4411         new_mask &= ~I40E_FLEX_INPUT_MASK;
4412
4413         /* If we have a flexible filter, try to add this offset to the correct
4414          * flexible filter PIT list. Once finished, we can update the mask.
4415          * If the src_offset changed, we will get a new mask value which will
4416          * trigger an input set change.
4417          */
4418         if (userdef->flex_filter) {
4419                 struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL;
4420
4421                 /* Flexible offset must be even, since the flexible payload
4422                  * must be aligned on 2-byte boundary.
4423                  */
4424                 if (userdef->flex_offset & 0x1) {
4425                         dev_warn(&pf->pdev->dev,
4426                                  "Flexible data offset must be 2-byte aligned\n");
4427                         return -EINVAL;
4428                 }
4429
4430                 src_offset = userdef->flex_offset >> 1;
4431
4432                 /* FLX_PIT source offset value is only so large */
4433                 if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) {
4434                         dev_warn(&pf->pdev->dev,
4435                                  "Flexible data must reside within first 64 bytes of the packet payload\n");
4436                         return -EINVAL;
4437                 }
4438
4439                 /* See if this offset has already been programmed. If we get
4440                  * an ERR_PTR, then the filter is not safe to add. Otherwise,
4441                  * if we get a NULL pointer, this means we will need to add
4442                  * the offset.
4443                  */
4444                 flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list,
4445                                                  src_offset);
4446                 if (IS_ERR(flex_pit))
4447                         return PTR_ERR(flex_pit);
4448
4449                 /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown)
4450                  * packet types, and thus we need to program both L3 and L4
4451                  * flexible values. These must have identical flexible index,
4452                  * as otherwise we can't correctly program the input set. So
4453                  * we'll find both an L3 and L4 index and make sure they are
4454                  * the same.
4455                  */
4456                 if (flex_l3) {
4457                         l3_flex_pit =
4458                                 i40e_find_flex_offset(&pf->l3_flex_pit_list,
4459                                                       src_offset);
4460                         if (IS_ERR(l3_flex_pit))
4461                                 return PTR_ERR(l3_flex_pit);
4462
4463                         if (flex_pit) {
4464                                 /* If we already had a matching L4 entry, we
4465                                  * need to make sure that the L3 entry we
4466                                  * obtained uses the same index.
4467                                  */
4468                                 if (l3_flex_pit) {
4469                                         if (l3_flex_pit->pit_index !=
4470                                             flex_pit->pit_index) {
4471                                                 return -EINVAL;
4472                                         }
4473                                 } else {
4474                                         new_flex_offset = true;
4475                                 }
4476                         } else {
4477                                 flex_pit = l3_flex_pit;
4478                         }
4479                 }
4480
4481                 /* If we didn't find an existing flex offset, we need to
4482                  * program a new one. However, we don't immediately program it
4483                  * here because we will wait to program until after we check
4484                  * that it is safe to change the input set.
4485                  */
4486                 if (!flex_pit) {
4487                         new_flex_offset = true;
4488                         pit_index = i40e_unused_pit_index(pf);
4489                 } else {
4490                         pit_index = flex_pit->pit_index;
4491                 }
4492
4493                 /* Update the mask with the new offset */
4494                 new_mask |= i40e_pit_index_to_mask(pit_index);
4495         }
4496
4497         /* If the mask and flexible filter offsets for this filter match the
4498          * currently programmed values we don't need any input set change, so
4499          * this filter is safe to install.
4500          */
4501         if (new_mask == current_mask && !new_flex_offset)
4502                 return 0;
4503
4504         netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n",
4505                    i40e_flow_str(fsp));
4506         i40e_print_input_set(vsi, current_mask, new_mask);
4507         if (new_flex_offset) {
4508                 netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d",
4509                            pit_index, src_offset);
4510         }
4511
4512         /* Hardware input sets are global across multiple ports, so even the
4513          * main port cannot change them when in MFP mode as this would impact
4514          * any filters on the other ports.
4515          */
4516         if (pf->flags & I40E_FLAG_MFP_ENABLED) {
4517                 netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n");
4518                 return -EOPNOTSUPP;
4519         }
4520
4521         /* This filter requires us to update the input set. However, hardware
4522          * only supports one input set per flow type, and does not support
4523          * separate masks for each filter. This means that we can only support
4524          * a single mask for all filters of a specific type.
4525          *
4526          * If we have preexisting filters, they obviously depend on the
4527          * current programmed input set. Display a diagnostic message in this
4528          * case explaining why the filter could not be accepted.
4529          */
4530         if (*fdir_filter_count) {
4531                 netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n",
4532                           i40e_flow_str(fsp),
4533                           *fdir_filter_count);
4534                 return -EOPNOTSUPP;
4535         }
4536
4537         i40e_write_fd_input_set(pf, index, new_mask);
4538
4539         /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented
4540          * frames. If we're programming the input set for IPv4/Other, we also
4541          * need to program the IPv4/Fragmented input set. Since we don't have
4542          * separate support, we'll always assume and enforce that the two flow
4543          * types must have matching input sets.
4544          */
4545         if (index == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER)
4546                 i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4,
4547                                         new_mask);
4548
4549         /* Add the new offset and update table, if necessary */
4550         if (new_flex_offset) {
4551                 err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset,
4552                                            pit_index);
4553                 if (err)
4554                         return err;
4555
4556                 if (flex_l3) {
4557                         err = i40e_add_flex_offset(&pf->l3_flex_pit_list,
4558                                                    src_offset,
4559                                                    pit_index);
4560                         if (err)
4561                                 return err;
4562                 }
4563
4564                 i40e_reprogram_flex_pit(pf);
4565         }
4566
4567         return 0;
4568 }
4569
4570 /**
4571  * i40e_match_fdir_filter - Return true of two filters match
4572  * @a: pointer to filter struct
4573  * @b: pointer to filter struct
4574  *
4575  * Returns true if the two filters match exactly the same criteria. I.e. they
4576  * match the same flow type and have the same parameters. We don't need to
4577  * check any input-set since all filters of the same flow type must use the
4578  * same input set.
4579  **/
4580 static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a,
4581                                    struct i40e_fdir_filter *b)
4582 {
4583         /* The filters do not much if any of these criteria differ. */
4584         if (a->dst_ip != b->dst_ip ||
4585             a->src_ip != b->src_ip ||
4586             a->dst_port != b->dst_port ||
4587             a->src_port != b->src_port ||
4588             a->flow_type != b->flow_type ||
4589             a->ipl4_proto != b->ipl4_proto ||
4590             a->vlan_tag != b->vlan_tag ||
4591             a->vlan_etype != b->vlan_etype)
4592                 return false;
4593
4594         return true;
4595 }
4596
4597 /**
4598  * i40e_disallow_matching_filters - Check that new filters differ
4599  * @vsi: pointer to the targeted VSI
4600  * @input: new filter to check
4601  *
4602  * Due to hardware limitations, it is not possible for two filters that match
4603  * similar criteria to be programmed at the same time. This is true for a few
4604  * reasons:
4605  *
4606  * (a) all filters matching a particular flow type must use the same input
4607  * set, that is they must match the same criteria.
4608  * (b) different flow types will never match the same packet, as the flow type
4609  * is decided by hardware before checking which rules apply.
4610  * (c) hardware has no way to distinguish which order filters apply in.
4611  *
4612  * Due to this, we can't really support using the location data to order
4613  * filters in the hardware parsing. It is technically possible for the user to
4614  * request two filters matching the same criteria but which select different
4615  * queues. In this case, rather than keep both filters in the list, we reject
4616  * the 2nd filter when the user requests adding it.
4617  *
4618  * This avoids needing to track location for programming the filter to
4619  * hardware, and ensures that we avoid some strange scenarios involving
4620  * deleting filters which match the same criteria.
4621  **/
4622 static int i40e_disallow_matching_filters(struct i40e_vsi *vsi,
4623                                           struct i40e_fdir_filter *input)
4624 {
4625         struct i40e_pf *pf = vsi->back;
4626         struct i40e_fdir_filter *rule;
4627         struct hlist_node *node2;
4628
4629         /* Loop through every filter, and check that it doesn't match */
4630         hlist_for_each_entry_safe(rule, node2,
4631                                   &pf->fdir_filter_list, fdir_node) {
4632                 /* Don't check the filters match if they share the same fd_id,
4633                  * since the new filter is actually just updating the target
4634                  * of the old filter.
4635                  */
4636                 if (rule->fd_id == input->fd_id)
4637                         continue;
4638
4639                 /* If any filters match, then print a warning message to the
4640                  * kernel message buffer and bail out.
4641                  */
4642                 if (i40e_match_fdir_filter(rule, input)) {
4643                         dev_warn(&pf->pdev->dev,
4644                                  "Existing user defined filter %d already matches this flow.\n",
4645                                  rule->fd_id);
4646                         return -EINVAL;
4647                 }
4648         }
4649
4650         return 0;
4651 }
4652
4653 /**
4654  * i40e_add_fdir_ethtool - Add/Remove Flow Director filters
4655  * @vsi: pointer to the targeted VSI
4656  * @cmd: command to get or set RX flow classification rules
4657  *
4658  * Add Flow Director filters for a specific flow spec based on their
4659  * protocol.  Returns 0 if the filters were successfully added.
4660  **/
4661 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
4662                                  struct ethtool_rxnfc *cmd)
4663 {
4664         struct i40e_rx_flow_userdef userdef;
4665         struct ethtool_rx_flow_spec *fsp;
4666         struct i40e_fdir_filter *input;
4667         u16 dest_vsi = 0, q_index = 0;
4668         struct i40e_pf *pf;
4669         int ret = -EINVAL;
4670         u8 dest_ctl;
4671
4672         if (!vsi)
4673                 return -EINVAL;
4674         pf = vsi->back;
4675
4676         if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
4677                 return -EOPNOTSUPP;
4678
4679         if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state))
4680                 return -ENOSPC;
4681
4682         if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
4683             test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
4684                 return -EBUSY;
4685
4686         if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))
4687                 return -EBUSY;
4688
4689         fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
4690
4691         /* Parse the user-defined field */
4692         if (i40e_parse_rx_flow_user_data(fsp, &userdef))
4693                 return -EINVAL;
4694
4695         /* Extended MAC field is not supported */
4696         if (fsp->flow_type & FLOW_MAC_EXT)
4697                 return -EINVAL;
4698
4699         ret = i40e_check_fdir_input_set(vsi, fsp, &userdef);
4700         if (ret)
4701                 return ret;
4702
4703         if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort +
4704                               pf->hw.func_caps.fd_filters_guaranteed)) {
4705                 return -EINVAL;
4706         }
4707
4708         /* ring_cookie is either the drop index, or is a mask of the queue
4709          * index and VF id we wish to target.
4710          */
4711         if (fsp->ring_cookie == RX_CLS_FLOW_DISC) {
4712                 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
4713         } else {
4714                 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie);
4715                 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie);
4716
4717                 if (!vf) {
4718                         if (ring >= vsi->num_queue_pairs)
4719                                 return -EINVAL;
4720                         dest_vsi = vsi->id;
4721                 } else {
4722                         /* VFs are zero-indexed, so we subtract one here */
4723                         vf--;
4724
4725                         if (vf >= pf->num_alloc_vfs)
4726                                 return -EINVAL;
4727                         if (ring >= pf->vf[vf].num_queue_pairs)
4728                                 return -EINVAL;
4729                         dest_vsi = pf->vf[vf].lan_vsi_id;
4730                 }
4731                 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
4732                 q_index = ring;
4733         }
4734
4735         input = kzalloc(sizeof(*input), GFP_KERNEL);
4736
4737         if (!input)
4738                 return -ENOMEM;
4739
4740         input->fd_id = fsp->location;
4741         input->q_index = q_index;
4742         input->dest_vsi = dest_vsi;
4743         input->dest_ctl = dest_ctl;
4744         input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID;
4745         input->cnt_index  = I40E_FD_SB_STAT_IDX(pf->hw.pf_id);
4746         input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src;
4747         input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
4748         input->flow_type = fsp->flow_type & ~FLOW_EXT;
4749
4750         input->vlan_etype = fsp->h_ext.vlan_etype;
4751         if (!fsp->m_ext.vlan_etype && fsp->h_ext.vlan_tci)
4752                 input->vlan_etype = cpu_to_be16(ETH_P_8021Q);
4753         if (fsp->m_ext.vlan_tci && input->vlan_etype)
4754                 input->vlan_tag = fsp->h_ext.vlan_tci;
4755         if (input->flow_type == IPV6_USER_FLOW ||
4756             input->flow_type == UDP_V6_FLOW ||
4757             input->flow_type == TCP_V6_FLOW ||
4758             input->flow_type == SCTP_V6_FLOW) {
4759                 /* Reverse the src and dest notion, since the HW expects them
4760                  * to be from Tx perspective where as the input from user is
4761                  * from Rx filter view.
4762                  */
4763                 input->ipl4_proto = fsp->h_u.usr_ip6_spec.l4_proto;
4764                 input->dst_port = fsp->h_u.tcp_ip6_spec.psrc;
4765                 input->src_port = fsp->h_u.tcp_ip6_spec.pdst;
4766                 memcpy(input->dst_ip6, fsp->h_u.ah_ip6_spec.ip6src,
4767                        sizeof(__be32) * 4);
4768                 memcpy(input->src_ip6, fsp->h_u.ah_ip6_spec.ip6dst,
4769                        sizeof(__be32) * 4);
4770         } else {
4771                 /* Reverse the src and dest notion, since the HW expects them
4772                  * to be from Tx perspective where as the input from user is
4773                  * from Rx filter view.
4774                  */
4775                 input->ipl4_proto = fsp->h_u.usr_ip4_spec.proto;
4776                 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc;
4777                 input->src_port = fsp->h_u.tcp_ip4_spec.pdst;
4778                 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src;
4779                 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
4780         }
4781
4782         if (userdef.flex_filter) {
4783                 input->flex_filter = true;
4784                 input->flex_word = cpu_to_be16(userdef.flex_word);
4785                 input->flex_offset = userdef.flex_offset;
4786         }
4787
4788         /* Avoid programming two filters with identical match criteria. */
4789         ret = i40e_disallow_matching_filters(vsi, input);
4790         if (ret)
4791                 goto free_filter_memory;
4792
4793         /* Add the input filter to the fdir_input_list, possibly replacing
4794          * a previous filter. Do not free the input structure after adding it
4795          * to the list as this would cause a use-after-free bug.
4796          */
4797         i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL);
4798         ret = i40e_add_del_fdir(vsi, input, true);
4799         if (ret)
4800                 goto remove_sw_rule;
4801         return 0;
4802
4803 remove_sw_rule:
4804         hlist_del(&input->fdir_node);
4805         pf->fdir_pf_active_filters--;
4806 free_filter_memory:
4807         kfree(input);
4808         return ret;
4809 }
4810
4811 /**
4812  * i40e_set_rxnfc - command to set RX flow classification rules
4813  * @netdev: network interface device structure
4814  * @cmd: ethtool rxnfc command
4815  *
4816  * Returns Success if the command is supported.
4817  **/
4818 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
4819 {
4820         struct i40e_netdev_priv *np = netdev_priv(netdev);
4821         struct i40e_vsi *vsi = np->vsi;
4822         struct i40e_pf *pf = vsi->back;
4823         int ret = -EOPNOTSUPP;
4824
4825         switch (cmd->cmd) {
4826         case ETHTOOL_SRXFH:
4827                 ret = i40e_set_rss_hash_opt(pf, cmd);
4828                 break;
4829         case ETHTOOL_SRXCLSRLINS:
4830                 ret = i40e_add_fdir_ethtool(vsi, cmd);
4831                 break;
4832         case ETHTOOL_SRXCLSRLDEL:
4833                 ret = i40e_del_fdir_entry(vsi, cmd);
4834                 break;
4835         default:
4836                 break;
4837         }
4838
4839         return ret;
4840 }
4841
4842 /**
4843  * i40e_max_channels - get Max number of combined channels supported
4844  * @vsi: vsi pointer
4845  **/
4846 static unsigned int i40e_max_channels(struct i40e_vsi *vsi)
4847 {
4848         /* TODO: This code assumes DCB and FD is disabled for now. */
4849         return vsi->alloc_queue_pairs;
4850 }
4851
4852 /**
4853  * i40e_get_channels - Get the current channels enabled and max supported etc.
4854  * @dev: network interface device structure
4855  * @ch: ethtool channels structure
4856  *
4857  * We don't support separate tx and rx queues as channels. The other count
4858  * represents how many queues are being used for control. max_combined counts
4859  * how many queue pairs we can support. They may not be mapped 1 to 1 with
4860  * q_vectors since we support a lot more queue pairs than q_vectors.
4861  **/
4862 static void i40e_get_channels(struct net_device *dev,
4863                               struct ethtool_channels *ch)
4864 {
4865         struct i40e_netdev_priv *np = netdev_priv(dev);
4866         struct i40e_vsi *vsi = np->vsi;
4867         struct i40e_pf *pf = vsi->back;
4868
4869         /* report maximum channels */
4870         ch->max_combined = i40e_max_channels(vsi);
4871
4872         /* report info for other vector */
4873         ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0;
4874         ch->max_other = ch->other_count;
4875
4876         /* Note: This code assumes DCB is disabled for now. */
4877         ch->combined_count = vsi->num_queue_pairs;
4878 }
4879
4880 /**
4881  * i40e_set_channels - Set the new channels count.
4882  * @dev: network interface device structure
4883  * @ch: ethtool channels structure
4884  *
4885  * The new channels count may not be the same as requested by the user
4886  * since it gets rounded down to a power of 2 value.
4887  **/
4888 static int i40e_set_channels(struct net_device *dev,
4889                              struct ethtool_channels *ch)
4890 {
4891         const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
4892         struct i40e_netdev_priv *np = netdev_priv(dev);
4893         unsigned int count = ch->combined_count;
4894         struct i40e_vsi *vsi = np->vsi;
4895         struct i40e_pf *pf = vsi->back;
4896         struct i40e_fdir_filter *rule;
4897         struct hlist_node *node2;
4898         int new_count;
4899         int err = 0;
4900
4901         /* We do not support setting channels for any other VSI at present */
4902         if (vsi->type != I40E_VSI_MAIN)
4903                 return -EINVAL;
4904
4905         /* We do not support setting channels via ethtool when TCs are
4906          * configured through mqprio
4907          */
4908         if (pf->flags & I40E_FLAG_TC_MQPRIO)
4909                 return -EINVAL;
4910
4911         /* verify they are not requesting separate vectors */
4912         if (!count || ch->rx_count || ch->tx_count)
4913                 return -EINVAL;
4914
4915         /* verify other_count has not changed */
4916         if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0))
4917                 return -EINVAL;
4918
4919         /* verify the number of channels does not exceed hardware limits */
4920         if (count > i40e_max_channels(vsi))
4921                 return -EINVAL;
4922
4923         /* verify that the number of channels does not invalidate any current
4924          * flow director rules
4925          */
4926         hlist_for_each_entry_safe(rule, node2,
4927                                   &pf->fdir_filter_list, fdir_node) {
4928                 if (rule->dest_ctl != drop && count <= rule->q_index) {
4929                         dev_warn(&pf->pdev->dev,
4930                                  "Existing user defined filter %d assigns flow to queue %d\n",
4931                                  rule->fd_id, rule->q_index);
4932                         err = -EINVAL;
4933                 }
4934         }
4935
4936         if (err) {
4937                 dev_err(&pf->pdev->dev,
4938                         "Existing filter rules must be deleted to reduce combined channel count to %d\n",
4939                         count);
4940                 return err;
4941         }
4942
4943         /* update feature limits from largest to smallest supported values */
4944         /* TODO: Flow director limit, DCB etc */
4945
4946         /* use rss_reconfig to rebuild with new queue count and update traffic
4947          * class queue mapping
4948          */
4949         new_count = i40e_reconfig_rss_queues(pf, count);
4950         if (new_count > 0)
4951                 return 0;
4952         else
4953                 return -EINVAL;
4954 }
4955
4956 /**
4957  * i40e_get_rxfh_key_size - get the RSS hash key size
4958  * @netdev: network interface device structure
4959  *
4960  * Returns the table size.
4961  **/
4962 static u32 i40e_get_rxfh_key_size(struct net_device *netdev)
4963 {
4964         return I40E_HKEY_ARRAY_SIZE;
4965 }
4966
4967 /**
4968  * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size
4969  * @netdev: network interface device structure
4970  *
4971  * Returns the table size.
4972  **/
4973 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev)
4974 {
4975         return I40E_HLUT_ARRAY_SIZE;
4976 }
4977
4978 /**
4979  * i40e_get_rxfh - get the rx flow hash indirection table
4980  * @netdev: network interface device structure
4981  * @indir: indirection table
4982  * @key: hash key
4983  * @hfunc: hash function
4984  *
4985  * Reads the indirection table directly from the hardware. Returns 0 on
4986  * success.
4987  **/
4988 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
4989                          u8 *hfunc)
4990 {
4991         struct i40e_netdev_priv *np = netdev_priv(netdev);
4992         struct i40e_vsi *vsi = np->vsi;
4993         u8 *lut, *seed = NULL;
4994         int ret;
4995         u16 i;
4996
4997         if (hfunc)
4998                 *hfunc = ETH_RSS_HASH_TOP;
4999
5000         if (!indir)
5001                 return 0;
5002
5003         seed = key;
5004         lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
5005         if (!lut)
5006                 return -ENOMEM;
5007         ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE);
5008         if (ret)
5009                 goto out;
5010         for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
5011                 indir[i] = (u32)(lut[i]);
5012
5013 out:
5014         kfree(lut);
5015
5016         return ret;
5017 }
5018
5019 /**
5020  * i40e_set_rxfh - set the rx flow hash indirection table
5021  * @netdev: network interface device structure
5022  * @indir: indirection table
5023  * @key: hash key
5024  * @hfunc: hash function to use
5025  *
5026  * Returns -EINVAL if the table specifies an invalid queue id, otherwise
5027  * returns 0 after programming the table.
5028  **/
5029 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir,
5030                          const u8 *key, const u8 hfunc)
5031 {
5032         struct i40e_netdev_priv *np = netdev_priv(netdev);
5033         struct i40e_vsi *vsi = np->vsi;
5034         struct i40e_pf *pf = vsi->back;
5035         u8 *seed = NULL;
5036         u16 i;
5037
5038         if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
5039                 return -EOPNOTSUPP;
5040
5041         if (key) {
5042                 if (!vsi->rss_hkey_user) {
5043                         vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE,
5044                                                      GFP_KERNEL);
5045                         if (!vsi->rss_hkey_user)
5046                                 return -ENOMEM;
5047                 }
5048                 memcpy(vsi->rss_hkey_user, key, I40E_HKEY_ARRAY_SIZE);
5049                 seed = vsi->rss_hkey_user;
5050         }
5051         if (!vsi->rss_lut_user) {
5052                 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
5053                 if (!vsi->rss_lut_user)
5054                         return -ENOMEM;
5055         }
5056
5057         /* Each 32 bits pointed by 'indir' is stored with a lut entry */
5058         if (indir)
5059                 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
5060                         vsi->rss_lut_user[i] = (u8)(indir[i]);
5061         else
5062                 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE,
5063                                   vsi->rss_size);
5064
5065         return i40e_config_rss(vsi, seed, vsi->rss_lut_user,
5066                                I40E_HLUT_ARRAY_SIZE);
5067 }
5068
5069 /**
5070  * i40e_get_priv_flags - report device private flags
5071  * @dev: network interface device structure
5072  *
5073  * The get string set count and the string set should be matched for each
5074  * flag returned.  Add new strings for each flag to the i40e_gstrings_priv_flags
5075  * array.
5076  *
5077  * Returns a u32 bitmap of flags.
5078  **/
5079 static u32 i40e_get_priv_flags(struct net_device *dev)
5080 {
5081         struct i40e_netdev_priv *np = netdev_priv(dev);
5082         struct i40e_vsi *vsi = np->vsi;
5083         struct i40e_pf *pf = vsi->back;
5084         u32 i, j, ret_flags = 0;
5085
5086         for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
5087                 const struct i40e_priv_flags *priv_flags;
5088
5089                 priv_flags = &i40e_gstrings_priv_flags[i];
5090
5091                 if (priv_flags->flag & pf->flags)
5092                         ret_flags |= BIT(i);
5093         }
5094
5095         if (pf->hw.pf_id != 0)
5096                 return ret_flags;
5097
5098         for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) {
5099                 const struct i40e_priv_flags *priv_flags;
5100
5101                 priv_flags = &i40e_gl_gstrings_priv_flags[j];
5102
5103                 if (priv_flags->flag & pf->flags)
5104                         ret_flags |= BIT(i + j);
5105         }
5106
5107         return ret_flags;
5108 }
5109
5110 /**
5111  * i40e_set_priv_flags - set private flags
5112  * @dev: network interface device structure
5113  * @flags: bit flags to be set
5114  **/
5115 static int i40e_set_priv_flags(struct net_device *dev, u32 flags)
5116 {
5117         struct i40e_netdev_priv *np = netdev_priv(dev);
5118         u64 orig_flags, new_flags, changed_flags;
5119         enum i40e_admin_queue_err adq_err;
5120         struct i40e_vsi *vsi = np->vsi;
5121         struct i40e_pf *pf = vsi->back;
5122         u32 reset_needed = 0;
5123         i40e_status status;
5124         u32 i, j;
5125
5126         orig_flags = READ_ONCE(pf->flags);
5127         new_flags = orig_flags;
5128
5129         for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
5130                 const struct i40e_priv_flags *priv_flags;
5131
5132                 priv_flags = &i40e_gstrings_priv_flags[i];
5133
5134                 if (flags & BIT(i))
5135                         new_flags |= priv_flags->flag;
5136                 else
5137                         new_flags &= ~(priv_flags->flag);
5138
5139                 /* If this is a read-only flag, it can't be changed */
5140                 if (priv_flags->read_only &&
5141                     ((orig_flags ^ new_flags) & ~BIT(i)))
5142                         return -EOPNOTSUPP;
5143         }
5144
5145         if (pf->hw.pf_id != 0)
5146                 goto flags_complete;
5147
5148         for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) {
5149                 const struct i40e_priv_flags *priv_flags;
5150
5151                 priv_flags = &i40e_gl_gstrings_priv_flags[j];
5152
5153                 if (flags & BIT(i + j))
5154                         new_flags |= priv_flags->flag;
5155                 else
5156                         new_flags &= ~(priv_flags->flag);
5157
5158                 /* If this is a read-only flag, it can't be changed */
5159                 if (priv_flags->read_only &&
5160                     ((orig_flags ^ new_flags) & ~BIT(i)))
5161                         return -EOPNOTSUPP;
5162         }
5163
5164 flags_complete:
5165         changed_flags = orig_flags ^ new_flags;
5166
5167         if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP)
5168                 reset_needed = I40E_PF_RESET_AND_REBUILD_FLAG;
5169         if (changed_flags & (I40E_FLAG_VEB_STATS_ENABLED |
5170             I40E_FLAG_LEGACY_RX | I40E_FLAG_SOURCE_PRUNING_DISABLED))
5171                 reset_needed = BIT(__I40E_PF_RESET_REQUESTED);
5172
5173         /* Before we finalize any flag changes, we need to perform some
5174          * checks to ensure that the changes are supported and safe.
5175          */
5176
5177         /* ATR eviction is not supported on all devices */
5178         if ((new_flags & I40E_FLAG_HW_ATR_EVICT_ENABLED) &&
5179             !(pf->hw_features & I40E_HW_ATR_EVICT_CAPABLE))
5180                 return -EOPNOTSUPP;
5181
5182         /* If the driver detected FW LLDP was disabled on init, this flag could
5183          * be set, however we do not support _changing_ the flag:
5184          * - on XL710 if NPAR is enabled or FW API version < 1.7
5185          * - on X722 with FW API version < 1.6
5186          * There are situations where older FW versions/NPAR enabled PFs could
5187          * disable LLDP, however we _must_ not allow the user to enable/disable
5188          * LLDP with this flag on unsupported FW versions.
5189          */
5190         if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) {
5191                 if (!(pf->hw.flags & I40E_HW_FLAG_FW_LLDP_STOPPABLE)) {
5192                         dev_warn(&pf->pdev->dev,
5193                                  "Device does not support changing FW LLDP\n");
5194                         return -EOPNOTSUPP;
5195                 }
5196         }
5197
5198         if (changed_flags & I40E_FLAG_RS_FEC &&
5199             pf->hw.device_id != I40E_DEV_ID_25G_SFP28 &&
5200             pf->hw.device_id != I40E_DEV_ID_25G_B) {
5201                 dev_warn(&pf->pdev->dev,
5202                          "Device does not support changing FEC configuration\n");
5203                 return -EOPNOTSUPP;
5204         }
5205
5206         if (changed_flags & I40E_FLAG_BASE_R_FEC &&
5207             pf->hw.device_id != I40E_DEV_ID_25G_SFP28 &&
5208             pf->hw.device_id != I40E_DEV_ID_25G_B &&
5209             pf->hw.device_id != I40E_DEV_ID_KX_X722) {
5210                 dev_warn(&pf->pdev->dev,
5211                          "Device does not support changing FEC configuration\n");
5212                 return -EOPNOTSUPP;
5213         }
5214
5215         /* Process any additional changes needed as a result of flag changes.
5216          * The changed_flags value reflects the list of bits that were
5217          * changed in the code above.
5218          */
5219
5220         /* Flush current ATR settings if ATR was disabled */
5221         if ((changed_flags & I40E_FLAG_FD_ATR_ENABLED) &&
5222             !(new_flags & I40E_FLAG_FD_ATR_ENABLED)) {
5223                 set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state);
5224                 set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state);
5225         }
5226
5227         if (changed_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT) {
5228                 u16 sw_flags = 0, valid_flags = 0;
5229                 int ret;
5230
5231                 if (!(new_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT))
5232                         sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
5233                 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
5234                 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags,
5235                                                 0, NULL);
5236                 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) {
5237                         dev_info(&pf->pdev->dev,
5238                                  "couldn't set switch config bits, err %s aq_err %s\n",
5239                                  i40e_stat_str(&pf->hw, ret),
5240                                  i40e_aq_str(&pf->hw,
5241                                              pf->hw.aq.asq_last_status));
5242                         /* not a fatal problem, just keep going */
5243                 }
5244         }
5245
5246         if ((changed_flags & I40E_FLAG_RS_FEC) ||
5247             (changed_flags & I40E_FLAG_BASE_R_FEC)) {
5248                 u8 fec_cfg = 0;
5249
5250                 if (new_flags & I40E_FLAG_RS_FEC &&
5251                     new_flags & I40E_FLAG_BASE_R_FEC) {
5252                         fec_cfg = I40E_AQ_SET_FEC_AUTO;
5253                 } else if (new_flags & I40E_FLAG_RS_FEC) {
5254                         fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS |
5255                                    I40E_AQ_SET_FEC_ABILITY_RS);
5256                 } else if (new_flags & I40E_FLAG_BASE_R_FEC) {
5257                         fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR |
5258                                    I40E_AQ_SET_FEC_ABILITY_KR);
5259                 }
5260                 if (i40e_set_fec_cfg(dev, fec_cfg))
5261                         dev_warn(&pf->pdev->dev, "Cannot change FEC config\n");
5262         }
5263
5264         if ((changed_flags & I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) &&
5265             (orig_flags & I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED)) {
5266                 dev_err(&pf->pdev->dev,
5267                         "Setting link-down-on-close not supported on this port (because total-port-shutdown is enabled)\n");
5268                 return -EOPNOTSUPP;
5269         }
5270
5271         if ((changed_flags & new_flags &
5272              I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) &&
5273             (new_flags & I40E_FLAG_MFP_ENABLED))
5274                 dev_warn(&pf->pdev->dev,
5275                          "Turning on link-down-on-close flag may affect other partitions\n");
5276
5277         if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) {
5278                 if (new_flags & I40E_FLAG_DISABLE_FW_LLDP) {
5279 #ifdef CONFIG_I40E_DCB
5280                         i40e_dcb_sw_default_config(pf);
5281 #endif /* CONFIG_I40E_DCB */
5282                         i40e_aq_cfg_lldp_mib_change_event(&pf->hw, false, NULL);
5283                         i40e_aq_stop_lldp(&pf->hw, true, false, NULL);
5284                 } else {
5285                         i40e_set_lldp_forwarding(pf, false);
5286                         status = i40e_aq_start_lldp(&pf->hw, false, NULL);
5287                         if (status) {
5288                                 adq_err = pf->hw.aq.asq_last_status;
5289                                 switch (adq_err) {
5290                                 case I40E_AQ_RC_EEXIST:
5291                                         dev_warn(&pf->pdev->dev,
5292                                                  "FW LLDP agent is already running\n");
5293                                         reset_needed = 0;
5294                                         break;
5295                                 case I40E_AQ_RC_EPERM:
5296                                         dev_warn(&pf->pdev->dev,
5297                                                  "Device configuration forbids SW from starting the LLDP agent.\n");
5298                                         return -EINVAL;
5299                                 default:
5300                                         dev_warn(&pf->pdev->dev,
5301                                                  "Starting FW LLDP agent failed: error: %s, %s\n",
5302                                                  i40e_stat_str(&pf->hw,
5303                                                                status),
5304                                                  i40e_aq_str(&pf->hw,
5305                                                              adq_err));
5306                                         return -EINVAL;
5307                                 }
5308                         }
5309                 }
5310         }
5311
5312         /* Now that we've checked to ensure that the new flags are valid, load
5313          * them into place. Since we only modify flags either (a) during
5314          * initialization or (b) while holding the RTNL lock, we don't need
5315          * anything fancy here.
5316          */
5317         pf->flags = new_flags;
5318
5319         /* Issue reset to cause things to take effect, as additional bits
5320          * are added we will need to create a mask of bits requiring reset
5321          */
5322         if (reset_needed)
5323                 i40e_do_reset(pf, reset_needed, true);
5324
5325         return 0;
5326 }
5327
5328 /**
5329  * i40e_get_module_info - get (Q)SFP+ module type info
5330  * @netdev: network interface device structure
5331  * @modinfo: module EEPROM size and layout information structure
5332  **/
5333 static int i40e_get_module_info(struct net_device *netdev,
5334                                 struct ethtool_modinfo *modinfo)
5335 {
5336         struct i40e_netdev_priv *np = netdev_priv(netdev);
5337         struct i40e_vsi *vsi = np->vsi;
5338         struct i40e_pf *pf = vsi->back;
5339         struct i40e_hw *hw = &pf->hw;
5340         u32 sff8472_comp = 0;
5341         u32 sff8472_swap = 0;
5342         u32 sff8636_rev = 0;
5343         i40e_status status;
5344         u32 type = 0;
5345
5346         /* Check if firmware supports reading module EEPROM. */
5347         if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) {
5348                 netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n");
5349                 return -EINVAL;
5350         }
5351
5352         status = i40e_update_link_info(hw);
5353         if (status)
5354                 return -EIO;
5355
5356         if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) {
5357                 netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n");
5358                 return -EINVAL;
5359         }
5360
5361         type = hw->phy.link_info.module_type[0];
5362
5363         switch (type) {
5364         case I40E_MODULE_TYPE_SFP:
5365                 status = i40e_aq_get_phy_register(hw,
5366                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5367                                 I40E_I2C_EEPROM_DEV_ADDR, true,
5368                                 I40E_MODULE_SFF_8472_COMP,
5369                                 &sff8472_comp, NULL);
5370                 if (status)
5371                         return -EIO;
5372
5373                 status = i40e_aq_get_phy_register(hw,
5374                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5375                                 I40E_I2C_EEPROM_DEV_ADDR, true,
5376                                 I40E_MODULE_SFF_8472_SWAP,
5377                                 &sff8472_swap, NULL);
5378                 if (status)
5379                         return -EIO;
5380
5381                 /* Check if the module requires address swap to access
5382                  * the other EEPROM memory page.
5383                  */
5384                 if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) {
5385                         netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n");
5386                         modinfo->type = ETH_MODULE_SFF_8079;
5387                         modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5388                 } else if (sff8472_comp == 0x00) {
5389                         /* Module is not SFF-8472 compliant */
5390                         modinfo->type = ETH_MODULE_SFF_8079;
5391                         modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5392                 } else if (!(sff8472_swap & I40E_MODULE_SFF_DDM_IMPLEMENTED)) {
5393                         /* Module is SFF-8472 compliant but doesn't implement
5394                          * Digital Diagnostic Monitoring (DDM).
5395                          */
5396                         modinfo->type = ETH_MODULE_SFF_8079;
5397                         modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5398                 } else {
5399                         modinfo->type = ETH_MODULE_SFF_8472;
5400                         modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
5401                 }
5402                 break;
5403         case I40E_MODULE_TYPE_QSFP_PLUS:
5404                 /* Read from memory page 0. */
5405                 status = i40e_aq_get_phy_register(hw,
5406                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5407                                 0, true,
5408                                 I40E_MODULE_REVISION_ADDR,
5409                                 &sff8636_rev, NULL);
5410                 if (status)
5411                         return -EIO;
5412                 /* Determine revision compliance byte */
5413                 if (sff8636_rev > 0x02) {
5414                         /* Module is SFF-8636 compliant */
5415                         modinfo->type = ETH_MODULE_SFF_8636;
5416                         modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5417                 } else {
5418                         modinfo->type = ETH_MODULE_SFF_8436;
5419                         modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5420                 }
5421                 break;
5422         case I40E_MODULE_TYPE_QSFP28:
5423                 modinfo->type = ETH_MODULE_SFF_8636;
5424                 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5425                 break;
5426         default:
5427                 netdev_err(vsi->netdev, "Module type unrecognized\n");
5428                 return -EINVAL;
5429         }
5430         return 0;
5431 }
5432
5433 /**
5434  * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents
5435  * @netdev: network interface device structure
5436  * @ee: EEPROM dump request structure
5437  * @data: buffer to be filled with EEPROM contents
5438  **/
5439 static int i40e_get_module_eeprom(struct net_device *netdev,
5440                                   struct ethtool_eeprom *ee,
5441                                   u8 *data)
5442 {
5443         struct i40e_netdev_priv *np = netdev_priv(netdev);
5444         struct i40e_vsi *vsi = np->vsi;
5445         struct i40e_pf *pf = vsi->back;
5446         struct i40e_hw *hw = &pf->hw;
5447         bool is_sfp = false;
5448         i40e_status status;
5449         u32 value = 0;
5450         int i;
5451
5452         if (!ee || !ee->len || !data)
5453                 return -EINVAL;
5454
5455         if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP)
5456                 is_sfp = true;
5457
5458         for (i = 0; i < ee->len; i++) {
5459                 u32 offset = i + ee->offset;
5460                 u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0;
5461
5462                 /* Check if we need to access the other memory page */
5463                 if (is_sfp) {
5464                         if (offset >= ETH_MODULE_SFF_8079_LEN) {
5465                                 offset -= ETH_MODULE_SFF_8079_LEN;
5466                                 addr = I40E_I2C_EEPROM_DEV_ADDR2;
5467                         }
5468                 } else {
5469                         while (offset >= ETH_MODULE_SFF_8436_LEN) {
5470                                 /* Compute memory page number and offset. */
5471                                 offset -= ETH_MODULE_SFF_8436_LEN / 2;
5472                                 addr++;
5473                         }
5474                 }
5475
5476                 status = i40e_aq_get_phy_register(hw,
5477                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5478                                 addr, true, offset, &value, NULL);
5479                 if (status)
5480                         return -EIO;
5481                 data[i] = value;
5482         }
5483         return 0;
5484 }
5485
5486 static int i40e_get_eee(struct net_device *netdev, struct ethtool_eee *edata)
5487 {
5488         struct i40e_netdev_priv *np = netdev_priv(netdev);
5489         struct i40e_aq_get_phy_abilities_resp phy_cfg;
5490         enum i40e_status_code status = 0;
5491         struct i40e_vsi *vsi = np->vsi;
5492         struct i40e_pf *pf = vsi->back;
5493         struct i40e_hw *hw = &pf->hw;
5494
5495         /* Get initial PHY capabilities */
5496         status = i40e_aq_get_phy_capabilities(hw, false, true, &phy_cfg, NULL);
5497         if (status)
5498                 return -EAGAIN;
5499
5500         /* Check whether NIC configuration is compatible with Energy Efficient
5501          * Ethernet (EEE) mode.
5502          */
5503         if (phy_cfg.eee_capability == 0)
5504                 return -EOPNOTSUPP;
5505
5506         edata->supported = SUPPORTED_Autoneg;
5507         edata->lp_advertised = edata->supported;
5508
5509         /* Get current configuration */
5510         status = i40e_aq_get_phy_capabilities(hw, false, false, &phy_cfg, NULL);
5511         if (status)
5512                 return -EAGAIN;
5513
5514         edata->advertised = phy_cfg.eee_capability ? SUPPORTED_Autoneg : 0U;
5515         edata->eee_enabled = !!edata->advertised;
5516         edata->tx_lpi_enabled = pf->stats.tx_lpi_status;
5517
5518         edata->eee_active = pf->stats.tx_lpi_status && pf->stats.rx_lpi_status;
5519
5520         return 0;
5521 }
5522
5523 static int i40e_is_eee_param_supported(struct net_device *netdev,
5524                                        struct ethtool_eee *edata)
5525 {
5526         struct i40e_netdev_priv *np = netdev_priv(netdev);
5527         struct i40e_vsi *vsi = np->vsi;
5528         struct i40e_pf *pf = vsi->back;
5529         struct i40e_ethtool_not_used {
5530                 u32 value;
5531                 const char *name;
5532         } param[] = {
5533                 {edata->advertised & ~SUPPORTED_Autoneg, "advertise"},
5534                 {edata->tx_lpi_timer, "tx-timer"},
5535                 {edata->tx_lpi_enabled != pf->stats.tx_lpi_status, "tx-lpi"}
5536         };
5537         int i;
5538
5539         for (i = 0; i < ARRAY_SIZE(param); i++) {
5540                 if (param[i].value) {
5541                         netdev_info(netdev,
5542                                     "EEE setting %s not supported\n",
5543                                     param[i].name);
5544                         return -EOPNOTSUPP;
5545                 }
5546         }
5547
5548         return 0;
5549 }
5550
5551 static int i40e_set_eee(struct net_device *netdev, struct ethtool_eee *edata)
5552 {
5553         struct i40e_netdev_priv *np = netdev_priv(netdev);
5554         struct i40e_aq_get_phy_abilities_resp abilities;
5555         enum i40e_status_code status = I40E_SUCCESS;
5556         struct i40e_aq_set_phy_config config;
5557         struct i40e_vsi *vsi = np->vsi;
5558         struct i40e_pf *pf = vsi->back;
5559         struct i40e_hw *hw = &pf->hw;
5560         __le16 eee_capability;
5561
5562         /* Deny parameters we don't support */
5563         if (i40e_is_eee_param_supported(netdev, edata))
5564                 return -EOPNOTSUPP;
5565
5566         /* Get initial PHY capabilities */
5567         status = i40e_aq_get_phy_capabilities(hw, false, true, &abilities,
5568                                               NULL);
5569         if (status)
5570                 return -EAGAIN;
5571
5572         /* Check whether NIC configuration is compatible with Energy Efficient
5573          * Ethernet (EEE) mode.
5574          */
5575         if (abilities.eee_capability == 0)
5576                 return -EOPNOTSUPP;
5577
5578         /* Cache initial EEE capability */
5579         eee_capability = abilities.eee_capability;
5580
5581         /* Get current PHY configuration */
5582         status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
5583                                               NULL);
5584         if (status)
5585                 return -EAGAIN;
5586
5587         /* Cache current PHY configuration */
5588         config.phy_type = abilities.phy_type;
5589         config.phy_type_ext = abilities.phy_type_ext;
5590         config.link_speed = abilities.link_speed;
5591         config.abilities = abilities.abilities |
5592                            I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
5593         config.eeer = abilities.eeer_val;
5594         config.low_power_ctrl = abilities.d3_lpan;
5595         config.fec_config = abilities.fec_cfg_curr_mod_ext_info &
5596                             I40E_AQ_PHY_FEC_CONFIG_MASK;
5597
5598         /* Set desired EEE state */
5599         if (edata->eee_enabled) {
5600                 config.eee_capability = eee_capability;
5601                 config.eeer |= cpu_to_le32(I40E_PRTPM_EEER_TX_LPI_EN_MASK);
5602         } else {
5603                 config.eee_capability = 0;
5604                 config.eeer &= cpu_to_le32(~I40E_PRTPM_EEER_TX_LPI_EN_MASK);
5605         }
5606
5607         /* Apply modified PHY configuration */
5608         status = i40e_aq_set_phy_config(hw, &config, NULL);
5609         if (status)
5610                 return -EAGAIN;
5611
5612         return 0;
5613 }
5614
5615 static const struct ethtool_ops i40e_ethtool_recovery_mode_ops = {
5616         .get_drvinfo            = i40e_get_drvinfo,
5617         .set_eeprom             = i40e_set_eeprom,
5618         .get_eeprom_len         = i40e_get_eeprom_len,
5619         .get_eeprom             = i40e_get_eeprom,
5620 };
5621
5622 static const struct ethtool_ops i40e_ethtool_ops = {
5623         .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
5624                                      ETHTOOL_COALESCE_MAX_FRAMES_IRQ |
5625                                      ETHTOOL_COALESCE_USE_ADAPTIVE |
5626                                      ETHTOOL_COALESCE_RX_USECS_HIGH |
5627                                      ETHTOOL_COALESCE_TX_USECS_HIGH,
5628         .get_drvinfo            = i40e_get_drvinfo,
5629         .get_regs_len           = i40e_get_regs_len,
5630         .get_regs               = i40e_get_regs,
5631         .nway_reset             = i40e_nway_reset,
5632         .get_link               = ethtool_op_get_link,
5633         .get_wol                = i40e_get_wol,
5634         .set_wol                = i40e_set_wol,
5635         .set_eeprom             = i40e_set_eeprom,
5636         .get_eeprom_len         = i40e_get_eeprom_len,
5637         .get_eeprom             = i40e_get_eeprom,
5638         .get_ringparam          = i40e_get_ringparam,
5639         .set_ringparam          = i40e_set_ringparam,
5640         .get_pauseparam         = i40e_get_pauseparam,
5641         .set_pauseparam         = i40e_set_pauseparam,
5642         .get_msglevel           = i40e_get_msglevel,
5643         .set_msglevel           = i40e_set_msglevel,
5644         .get_rxnfc              = i40e_get_rxnfc,
5645         .set_rxnfc              = i40e_set_rxnfc,
5646         .self_test              = i40e_diag_test,
5647         .get_strings            = i40e_get_strings,
5648         .get_eee                = i40e_get_eee,
5649         .set_eee                = i40e_set_eee,
5650         .set_phys_id            = i40e_set_phys_id,
5651         .get_sset_count         = i40e_get_sset_count,
5652         .get_ethtool_stats      = i40e_get_ethtool_stats,
5653         .get_coalesce           = i40e_get_coalesce,
5654         .set_coalesce           = i40e_set_coalesce,
5655         .get_rxfh_key_size      = i40e_get_rxfh_key_size,
5656         .get_rxfh_indir_size    = i40e_get_rxfh_indir_size,
5657         .get_rxfh               = i40e_get_rxfh,
5658         .set_rxfh               = i40e_set_rxfh,
5659         .get_channels           = i40e_get_channels,
5660         .set_channels           = i40e_set_channels,
5661         .get_module_info        = i40e_get_module_info,
5662         .get_module_eeprom      = i40e_get_module_eeprom,
5663         .get_ts_info            = i40e_get_ts_info,
5664         .get_priv_flags         = i40e_get_priv_flags,
5665         .set_priv_flags         = i40e_set_priv_flags,
5666         .get_per_queue_coalesce = i40e_get_per_queue_coalesce,
5667         .set_per_queue_coalesce = i40e_set_per_queue_coalesce,
5668         .get_link_ksettings     = i40e_get_link_ksettings,
5669         .set_link_ksettings     = i40e_set_link_ksettings,
5670         .get_fecparam = i40e_get_fec_param,
5671         .set_fecparam = i40e_set_fec_param,
5672         .flash_device = i40e_ddp_flash,
5673 };
5674
5675 void i40e_set_ethtool_ops(struct net_device *netdev)
5676 {
5677         struct i40e_netdev_priv *np = netdev_priv(netdev);
5678         struct i40e_pf          *pf = np->vsi->back;
5679
5680         if (!test_bit(__I40E_RECOVERY_MODE, pf->state))
5681                 netdev->ethtool_ops = &i40e_ethtool_ops;
5682         else
5683                 netdev->ethtool_ops = &i40e_ethtool_recovery_mode_ops;
5684 }