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_devids.h"
   7 #include "i40e_diag.h"
   8 #include "i40e_txrx_common.h"
   9 #include "i40e_virtchnl_pf.h"
  10
  11 /* ethtool statistics helpers */
  12
  13 /**
  14  * struct i40e_stats - definition for an ethtool statistic
  15  * @stat_string: statistic name to display in ethtool -S output
  16  * @sizeof_stat: the sizeof() the stat, must be no greater than sizeof(u64)
  17  * @stat_offset: offsetof() the stat from a base pointer
  18  *
  19  * This structure defines a statistic to be added to the ethtool stats buffer.
  20  * It defines a statistic as offset from a common base pointer. Stats should
  21  * be defined in constant arrays using the I40E_STAT macro, with every element
  22  * of the array using the same _type for calculating the sizeof_stat and
  23  * stat_offset.
  24  *
  25  * The @sizeof_stat is expected to be sizeof(u8), sizeof(u16), sizeof(u32) or
  26  * sizeof(u64). Other sizes are not expected and will produce a WARN_ONCE from
  27  * the i40e_add_ethtool_stat() helper function.
  28  *
  29  * The @stat_string is interpreted as a format string, allowing formatted
  30  * values to be inserted while looping over multiple structures for a given
  31  * statistics array. Thus, every statistic string in an array should have the
  32  * same type and number of format specifiers, to be formatted by variadic
  33  * arguments to the i40e_add_stat_string() helper function.
  34  **/
  35 struct i40e_stats {
  36         char stat_string[ETH_GSTRING_LEN];
  37         int sizeof_stat;
  38         int stat_offset;
  39 };
  40
  41 /* Helper macro to define an i40e_stat structure with proper size and type.
  42  * Use this when defining constant statistics arrays. Note that @_type expects
  43  * only a type name and is used multiple times.
  44  */
  45 #define I40E_STAT(_type, _name, _stat) { \
  46         .stat_string = _name, \
  47         .sizeof_stat = sizeof_field(_type, _stat), \
  48         .stat_offset = offsetof(_type, _stat) \
  49 }
  50
  51 /* Helper macro for defining some statistics directly copied from the netdev
  52  * stats structure.
  53  */
  54 #define I40E_NETDEV_STAT(_net_stat) \
  55         I40E_STAT(struct rtnl_link_stats64, #_net_stat, _net_stat)
  56
  57 /* Helper macro for defining some statistics related to queues */
  58 #define I40E_QUEUE_STAT(_name, _stat) \
  59         I40E_STAT(struct i40e_ring, _name, _stat)
  60
  61 /* Stats associated with a Tx or Rx ring */
  62 static const struct i40e_stats i40e_gstrings_queue_stats[] = {
  63         I40E_QUEUE_STAT("%s-%u.packets", stats.packets),
  64         I40E_QUEUE_STAT("%s-%u.bytes", stats.bytes),
  65 };
  66
  67 /**
  68  * i40e_add_one_ethtool_stat - copy the stat into the supplied buffer
  69  * @data: location to store the stat value
  70  * @pointer: basis for where to copy from
  71  * @stat: the stat definition
  72  *
  73  * Copies the stat data defined by the pointer and stat structure pair into
  74  * the memory supplied as data. Used to implement i40e_add_ethtool_stats and
  75  * i40e_add_queue_stats. If the pointer is null, data will be zero'd.
  76  */
  77 static void
  78 i40e_add_one_ethtool_stat(u64 *data, void *pointer,
  79                           const struct i40e_stats *stat)
  80 {
  81         char *p;
  82
  83         if (!pointer) {
  84                 /* ensure that the ethtool data buffer is zero'd for any stats
  85                  * which don't have a valid pointer.
  86                  */
  87                 *data = 0;
  88                 return;
  89         }
  90
  91         p = (char *)pointer + stat->stat_offset;
  92         switch (stat->sizeof_stat) {
  93         case sizeof(u64):
  94                 *data = *((u64 *)p);
  95                 break;
  96         case sizeof(u32):
  97                 *data = *((u32 *)p);
  98                 break;
  99         case sizeof(u16):
 100                 *data = *((u16 *)p);
 101                 break;
 102         case sizeof(u8):
 103                 *data = *((u8 *)p);
 104                 break;
 105         default:
 106                 WARN_ONCE(1, "unexpected stat size for %s",
 107                           stat->stat_string);
 108                 *data = 0;
 109         }
 110 }
 111
 112 /**
 113  * __i40e_add_ethtool_stats - copy stats into the ethtool supplied buffer
 114  * @data: ethtool stats buffer
 115  * @pointer: location to copy stats from
 116  * @stats: array of stats to copy
 117  * @size: the size of the stats definition
 118  *
 119  * Copy the stats defined by the stats array using the pointer as a base into
 120  * the data buffer supplied by ethtool. Updates the data pointer to point to
 121  * the next empty location for successive calls to __i40e_add_ethtool_stats.
 122  * If pointer is null, set the data values to zero and update the pointer to
 123  * skip these stats.
 124  **/
 125 static void
 126 __i40e_add_ethtool_stats(u64 **data, void *pointer,
 127                          const struct i40e_stats stats[],
 128                          const unsigned int size)
 129 {
 130         unsigned int i;
 131
 132         for (i = 0; i < size; i++)
 133                 i40e_add_one_ethtool_stat((*data)++, pointer, &stats[i]);
 134 }
 135
 136 /**
 137  * i40e_add_ethtool_stats - copy stats into ethtool supplied buffer
 138  * @data: ethtool stats buffer
 139  * @pointer: location where stats are stored
 140  * @stats: static const array of stat definitions
 141  *
 142  * Macro to ease the use of __i40e_add_ethtool_stats by taking a static
 143  * constant stats array and passing the ARRAY_SIZE(). This avoids typos by
 144  * ensuring that we pass the size associated with the given stats array.
 145  *
 146  * The parameter @stats is evaluated twice, so parameters with side effects
 147  * should be avoided.
 148  **/
 149 #define i40e_add_ethtool_stats(data, pointer, stats) \
 150         __i40e_add_ethtool_stats(data, pointer, stats, ARRAY_SIZE(stats))
 151
 152 /**
 153  * i40e_add_queue_stats - copy queue statistics into supplied buffer
 154  * @data: ethtool stats buffer
 155  * @ring: the ring to copy
 156  *
 157  * Queue statistics must be copied while protected by
 158  * u64_stats_fetch_begin, so we can't directly use i40e_add_ethtool_stats.
 159  * Assumes that queue stats are defined in i40e_gstrings_queue_stats. If the
 160  * ring pointer is null, zero out the queue stat values and update the data
 161  * pointer. Otherwise safely copy the stats from the ring into the supplied
 162  * buffer and update the data pointer when finished.
 163  *
 164  * This function expects to be called while under rcu_read_lock().
 165  **/
 166 static void
 167 i40e_add_queue_stats(u64 **data, struct i40e_ring *ring)
 168 {
 169         const unsigned int size = ARRAY_SIZE(i40e_gstrings_queue_stats);
 170         const struct i40e_stats *stats = i40e_gstrings_queue_stats;
 171         unsigned int start;
 172         unsigned int i;
 173
 174         /* To avoid invalid statistics values, ensure that we keep retrying
 175          * the copy until we get a consistent value according to
 176          * u64_stats_fetch_retry. But first, make sure our ring is
 177          * non-null before attempting to access its syncp.
 178          */
 179         do {
 180                 start = !ring ? 0 : u64_stats_fetch_begin(&ring->syncp);
 181                 for (i = 0; i < size; i++) {
 182                         i40e_add_one_ethtool_stat(&(*data)[i], ring,
 183                                                   &stats[i]);
 184                 }
 185         } while (ring && u64_stats_fetch_retry(&ring->syncp, start));
 186
 187         /* Once we successfully copy the stats in, update the data pointer */
 188         *data += size;
 189 }
 190
 191 /**
 192  * __i40e_add_stat_strings - copy stat strings into ethtool buffer
 193  * @p: ethtool supplied buffer
 194  * @stats: stat definitions array
 195  * @size: size of the stats array
 196  *
 197  * Format and copy the strings described by stats into the buffer pointed at
 198  * by p.
 199  **/
 200 static void __i40e_add_stat_strings(u8 **p, const struct i40e_stats stats[],
 201                                     const unsigned int size, ...)
 202 {
 203         unsigned int i;
 204
 205         for (i = 0; i < size; i++) {
 206                 va_list args;
 207
 208                 va_start(args, size);
 209                 vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args);
 210                 *p += ETH_GSTRING_LEN;
 211                 va_end(args);
 212         }
 213 }
 214
 215 /**
 216  * i40e_add_stat_strings - copy stat strings into ethtool buffer
 217  * @p: ethtool supplied buffer
 218  * @stats: stat definitions array
 219  *
 220  * Format and copy the strings described by the const static stats value into
 221  * the buffer pointed at by p.
 222  *
 223  * The parameter @stats is evaluated twice, so parameters with side effects
 224  * should be avoided. Additionally, stats must be an array such that
 225  * ARRAY_SIZE can be called on it.
 226  **/
 227 #define i40e_add_stat_strings(p, stats, ...) \
 228         __i40e_add_stat_strings(p, stats, ARRAY_SIZE(stats), ## __VA_ARGS__)
 229
 230 #define I40E_PF_STAT(_name, _stat) \
 231         I40E_STAT(struct i40e_pf, _name, _stat)
 232 #define I40E_VSI_STAT(_name, _stat) \
 233         I40E_STAT(struct i40e_vsi, _name, _stat)
 234 #define I40E_VEB_STAT(_name, _stat) \
 235         I40E_STAT(struct i40e_veb, _name, _stat)
 236 #define I40E_VEB_TC_STAT(_name, _stat) \
 237         I40E_STAT(struct i40e_cp_veb_tc_stats, _name, _stat)
 238 #define I40E_PFC_STAT(_name, _stat) \
 239         I40E_STAT(struct i40e_pfc_stats, _name, _stat)
 240
 241 static const struct i40e_stats i40e_gstrings_net_stats[] = {
 242         I40E_NETDEV_STAT(rx_packets),
 243         I40E_NETDEV_STAT(tx_packets),
 244         I40E_NETDEV_STAT(rx_bytes),
 245         I40E_NETDEV_STAT(tx_bytes),
 246         I40E_NETDEV_STAT(rx_errors),
 247         I40E_NETDEV_STAT(tx_errors),
 248         I40E_NETDEV_STAT(rx_dropped),
 249         I40E_NETDEV_STAT(rx_missed_errors),
 250         I40E_NETDEV_STAT(tx_dropped),
 251         I40E_NETDEV_STAT(collisions),
 252         I40E_NETDEV_STAT(rx_length_errors),
 253         I40E_NETDEV_STAT(rx_crc_errors),
 254 };
 255
 256 static const struct i40e_stats i40e_gstrings_veb_stats[] = {
 257         I40E_VEB_STAT("veb.rx_bytes", stats.rx_bytes),
 258         I40E_VEB_STAT("veb.tx_bytes", stats.tx_bytes),
 259         I40E_VEB_STAT("veb.rx_unicast", stats.rx_unicast),
 260         I40E_VEB_STAT("veb.tx_unicast", stats.tx_unicast),
 261         I40E_VEB_STAT("veb.rx_multicast", stats.rx_multicast),
 262         I40E_VEB_STAT("veb.tx_multicast", stats.tx_multicast),
 263         I40E_VEB_STAT("veb.rx_broadcast", stats.rx_broadcast),
 264         I40E_VEB_STAT("veb.tx_broadcast", stats.tx_broadcast),
 265         I40E_VEB_STAT("veb.rx_discards", stats.rx_discards),
 266         I40E_VEB_STAT("veb.tx_discards", stats.tx_discards),
 267         I40E_VEB_STAT("veb.tx_errors", stats.tx_errors),
 268         I40E_VEB_STAT("veb.rx_unknown_protocol", stats.rx_unknown_protocol),
 269 };
 270
 271 struct i40e_cp_veb_tc_stats {
 272         u64 tc_rx_packets;
 273         u64 tc_rx_bytes;
 274         u64 tc_tx_packets;
 275         u64 tc_tx_bytes;
 276 };
 277
 278 static const struct i40e_stats i40e_gstrings_veb_tc_stats[] = {
 279         I40E_VEB_TC_STAT("veb.tc_%u_tx_packets", tc_tx_packets),
 280         I40E_VEB_TC_STAT("veb.tc_%u_tx_bytes", tc_tx_bytes),
 281         I40E_VEB_TC_STAT("veb.tc_%u_rx_packets", tc_rx_packets),
 282         I40E_VEB_TC_STAT("veb.tc_%u_rx_bytes", tc_rx_bytes),
 283 };
 284
 285 static const struct i40e_stats i40e_gstrings_misc_stats[] = {
 286         I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast),
 287         I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast),
 288         I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast),
 289         I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast),
 290         I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast),
 291         I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast),
 292         I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol),
 293         I40E_VSI_STAT("tx_linearize", tx_linearize),
 294         I40E_VSI_STAT("tx_force_wb", tx_force_wb),
 295         I40E_VSI_STAT("tx_busy", tx_busy),
 296         I40E_VSI_STAT("tx_stopped", tx_stopped),
 297         I40E_VSI_STAT("rx_alloc_fail", rx_buf_failed),
 298         I40E_VSI_STAT("rx_pg_alloc_fail", rx_page_failed),
 299         I40E_VSI_STAT("rx_cache_reuse", rx_page_reuse),
 300         I40E_VSI_STAT("rx_cache_alloc", rx_page_alloc),
 301         I40E_VSI_STAT("rx_cache_waive", rx_page_waive),
 302         I40E_VSI_STAT("rx_cache_busy", rx_page_busy),
 303         I40E_VSI_STAT("tx_restart", tx_restart),
 304 };
 305
 306 /* These PF_STATs might look like duplicates of some NETDEV_STATs,
 307  * but they are separate.  This device supports Virtualization, and
 308  * as such might have several netdevs supporting VMDq and FCoE going
 309  * through a single port.  The NETDEV_STATs are for individual netdevs
 310  * seen at the top of the stack, and the PF_STATs are for the physical
 311  * function at the bottom of the stack hosting those netdevs.
 312  *
 313  * The PF_STATs are appended to the netdev stats only when ethtool -S
 314  * is queried on the base PF netdev, not on the VMDq or FCoE netdev.
 315  */
 316 static const struct i40e_stats i40e_gstrings_stats[] = {
 317         I40E_PF_STAT("port.rx_bytes", stats.eth.rx_bytes),
 318         I40E_PF_STAT("port.tx_bytes", stats.eth.tx_bytes),
 319         I40E_PF_STAT("port.rx_unicast", stats.eth.rx_unicast),
 320         I40E_PF_STAT("port.tx_unicast", stats.eth.tx_unicast),
 321         I40E_PF_STAT("port.rx_multicast", stats.eth.rx_multicast),
 322         I40E_PF_STAT("port.tx_multicast", stats.eth.tx_multicast),
 323         I40E_PF_STAT("port.rx_broadcast", stats.eth.rx_broadcast),
 324         I40E_PF_STAT("port.tx_broadcast", stats.eth.tx_broadcast),
 325         I40E_PF_STAT("port.tx_errors", stats.eth.tx_errors),
 326         I40E_PF_STAT("port.rx_discards", stats.eth.rx_discards),
 327         I40E_PF_STAT("port.tx_dropped_link_down", stats.tx_dropped_link_down),
 328         I40E_PF_STAT("port.rx_crc_errors", stats.crc_errors),
 329         I40E_PF_STAT("port.illegal_bytes", stats.illegal_bytes),
 330         I40E_PF_STAT("port.mac_local_faults", stats.mac_local_faults),
 331         I40E_PF_STAT("port.mac_remote_faults", stats.mac_remote_faults),
 332         I40E_PF_STAT("port.tx_timeout", tx_timeout_count),
 333         I40E_PF_STAT("port.rx_csum_bad", hw_csum_rx_error),
 334         I40E_PF_STAT("port.rx_length_errors", stats.rx_length_errors),
 335         I40E_PF_STAT("port.link_xon_rx", stats.link_xon_rx),
 336         I40E_PF_STAT("port.link_xoff_rx", stats.link_xoff_rx),
 337         I40E_PF_STAT("port.link_xon_tx", stats.link_xon_tx),
 338         I40E_PF_STAT("port.link_xoff_tx", stats.link_xoff_tx),
 339         I40E_PF_STAT("port.rx_size_64", stats.rx_size_64),
 340         I40E_PF_STAT("port.rx_size_127", stats.rx_size_127),
 341         I40E_PF_STAT("port.rx_size_255", stats.rx_size_255),
 342         I40E_PF_STAT("port.rx_size_511", stats.rx_size_511),
 343         I40E_PF_STAT("port.rx_size_1023", stats.rx_size_1023),
 344         I40E_PF_STAT("port.rx_size_1522", stats.rx_size_1522),
 345         I40E_PF_STAT("port.rx_size_big", stats.rx_size_big),
 346         I40E_PF_STAT("port.tx_size_64", stats.tx_size_64),
 347         I40E_PF_STAT("port.tx_size_127", stats.tx_size_127),
 348         I40E_PF_STAT("port.tx_size_255", stats.tx_size_255),
 349         I40E_PF_STAT("port.tx_size_511", stats.tx_size_511),
 350         I40E_PF_STAT("port.tx_size_1023", stats.tx_size_1023),
 351         I40E_PF_STAT("port.tx_size_1522", stats.tx_size_1522),
 352         I40E_PF_STAT("port.tx_size_big", stats.tx_size_big),
 353         I40E_PF_STAT("port.rx_undersize", stats.rx_undersize),
 354         I40E_PF_STAT("port.rx_fragments", stats.rx_fragments),
 355         I40E_PF_STAT("port.rx_oversize", stats.rx_oversize),
 356         I40E_PF_STAT("port.rx_jabber", stats.rx_jabber),
 357         I40E_PF_STAT("port.VF_admin_queue_requests", vf_aq_requests),
 358         I40E_PF_STAT("port.arq_overflows", arq_overflows),
 359         I40E_PF_STAT("port.tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
 360         I40E_PF_STAT("port.rx_hwtstamp_cleared", rx_hwtstamp_cleared),
 361         I40E_PF_STAT("port.tx_hwtstamp_skipped", tx_hwtstamp_skipped),
 362         I40E_PF_STAT("port.fdir_flush_cnt", fd_flush_cnt),
 363         I40E_PF_STAT("port.fdir_atr_match", stats.fd_atr_match),
 364         I40E_PF_STAT("port.fdir_atr_tunnel_match", stats.fd_atr_tunnel_match),
 365         I40E_PF_STAT("port.fdir_atr_status", stats.fd_atr_status),
 366         I40E_PF_STAT("port.fdir_sb_match", stats.fd_sb_match),
 367         I40E_PF_STAT("port.fdir_sb_status", stats.fd_sb_status),
 368
 369         /* LPI stats */
 370         I40E_PF_STAT("port.tx_lpi_status", stats.tx_lpi_status),
 371         I40E_PF_STAT("port.rx_lpi_status", stats.rx_lpi_status),
 372         I40E_PF_STAT("port.tx_lpi_count", stats.tx_lpi_count),
 373         I40E_PF_STAT("port.rx_lpi_count", stats.rx_lpi_count),
 374 };
 375
 376 struct i40e_pfc_stats {
 377         u64 priority_xon_rx;
 378         u64 priority_xoff_rx;
 379         u64 priority_xon_tx;
 380         u64 priority_xoff_tx;
 381         u64 priority_xon_2_xoff;
 382 };
 383
 384 static const struct i40e_stats i40e_gstrings_pfc_stats[] = {
 385         I40E_PFC_STAT("port.tx_priority_%u_xon_tx", priority_xon_tx),
 386         I40E_PFC_STAT("port.tx_priority_%u_xoff_tx", priority_xoff_tx),
 387         I40E_PFC_STAT("port.rx_priority_%u_xon_rx", priority_xon_rx),
 388         I40E_PFC_STAT("port.rx_priority_%u_xoff_rx", priority_xoff_rx),
 389         I40E_PFC_STAT("port.rx_priority_%u_xon_2_xoff", priority_xon_2_xoff),
 390 };
 391
 392 #define I40E_NETDEV_STATS_LEN   ARRAY_SIZE(i40e_gstrings_net_stats)
 393
 394 #define I40E_MISC_STATS_LEN     ARRAY_SIZE(i40e_gstrings_misc_stats)
 395
 396 #define I40E_VSI_STATS_LEN      (I40E_NETDEV_STATS_LEN + I40E_MISC_STATS_LEN)
 397
 398 #define I40E_PFC_STATS_LEN      (ARRAY_SIZE(i40e_gstrings_pfc_stats) * \
 399                                  I40E_MAX_USER_PRIORITY)
 400
 401 #define I40E_VEB_STATS_LEN      (ARRAY_SIZE(i40e_gstrings_veb_stats) + \
 402                                  (ARRAY_SIZE(i40e_gstrings_veb_tc_stats) * \
 403                                   I40E_MAX_TRAFFIC_CLASS))
 404
 405 #define I40E_GLOBAL_STATS_LEN   ARRAY_SIZE(i40e_gstrings_stats)
 406
 407 #define I40E_PF_STATS_LEN       (I40E_GLOBAL_STATS_LEN + \
 408                                  I40E_PFC_STATS_LEN + \
 409                                  I40E_VEB_STATS_LEN + \
 410                                  I40E_VSI_STATS_LEN)
 411
 412 /* Length of stats for a single queue */
 413 #define I40E_QUEUE_STATS_LEN    ARRAY_SIZE(i40e_gstrings_queue_stats)
 414
 415 enum i40e_ethtool_test_id {
 416         I40E_ETH_TEST_REG = 0,
 417         I40E_ETH_TEST_EEPROM,
 418         I40E_ETH_TEST_INTR,
 419         I40E_ETH_TEST_LINK,
 420 };
 421
 422 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = {
 423         "Register test  (offline)",
 424         "Eeprom test    (offline)",
 425         "Interrupt test (offline)",
 426         "Link test   (on/offline)"
 427 };
 428
 429 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN)
 430
 431 struct i40e_priv_flags {
 432         char flag_string[ETH_GSTRING_LEN];
 433         u8 bitno;
 434         bool read_only;
 435 };
 436
 437 #define I40E_PRIV_FLAG(_name, _bitno, _read_only) { \
 438         .flag_string = _name, \
 439         .bitno = _bitno, \
 440         .read_only = _read_only, \
 441 }
 442
 443 static const struct i40e_priv_flags i40e_gstrings_priv_flags[] = {
 444         /* NOTE: MFP setting cannot be changed */
 445         I40E_PRIV_FLAG("MFP", I40E_FLAG_MFP_ENA, 1),
 446         I40E_PRIV_FLAG("total-port-shutdown",
 447                        I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENA, 1),
 448         I40E_PRIV_FLAG("LinkPolling", I40E_FLAG_LINK_POLLING_ENA, 0),
 449         I40E_PRIV_FLAG("flow-director-atr", I40E_FLAG_FD_ATR_ENA, 0),
 450         I40E_PRIV_FLAG("veb-stats", I40E_FLAG_VEB_STATS_ENA, 0),
 451         I40E_PRIV_FLAG("hw-atr-eviction", I40E_FLAG_HW_ATR_EVICT_ENA, 0),
 452         I40E_PRIV_FLAG("link-down-on-close",
 453                        I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, 0),
 454         I40E_PRIV_FLAG("legacy-rx", I40E_FLAG_LEGACY_RX_ENA, 0),
 455         I40E_PRIV_FLAG("disable-source-pruning",
 456                        I40E_FLAG_SOURCE_PRUNING_DIS, 0),
 457         I40E_PRIV_FLAG("disable-fw-lldp", I40E_FLAG_FW_LLDP_DIS, 0),
 458         I40E_PRIV_FLAG("rs-fec", I40E_FLAG_RS_FEC, 0),
 459         I40E_PRIV_FLAG("base-r-fec", I40E_FLAG_BASE_R_FEC, 0),
 460         I40E_PRIV_FLAG("vf-vlan-pruning",
 461                        I40E_FLAG_VF_VLAN_PRUNING_ENA, 0),
 462 };
 463
 464 #define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gstrings_priv_flags)
 465
 466 /* Private flags with a global effect, restricted to PF 0 */
 467 static const struct i40e_priv_flags i40e_gl_gstrings_priv_flags[] = {
 468         I40E_PRIV_FLAG("vf-true-promisc-support",
 469                        I40E_FLAG_TRUE_PROMISC_ENA, 0),
 470 };
 471
 472 #define I40E_GL_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gl_gstrings_priv_flags)
 473
 474 /**
 475  * i40e_partition_setting_complaint - generic complaint for MFP restriction
 476  * @pf: the PF struct
 477  **/
 478 static void i40e_partition_setting_complaint(struct i40e_pf *pf)
 479 {
 480         dev_info(&pf->pdev->dev,
 481                  "The link settings are allowed to be changed only from the first partition of a given port. Please switch to the first partition in order to change the setting.\n");
 482 }
 483
 484 /**
 485  * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes
 486  * @pf: PF struct with phy_types
 487  * @ks: ethtool link ksettings struct to fill out
 488  *
 489  **/
 490 static void i40e_phy_type_to_ethtool(struct i40e_pf *pf,
 491                                      struct ethtool_link_ksettings *ks)
 492 {
 493         struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info;
 494         u64 phy_types = pf->hw.phy.phy_types;
 495
 496         ethtool_link_ksettings_zero_link_mode(ks, supported);
 497         ethtool_link_ksettings_zero_link_mode(ks, advertising);
 498
 499         if (phy_types & I40E_CAP_PHY_TYPE_SGMII) {
 500                 ethtool_link_ksettings_add_link_mode(ks, supported,
 501                                                      1000baseT_Full);
 502                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 503                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 504                                                              1000baseT_Full);
 505                 if (test_bit(I40E_HW_CAP_100M_SGMII, pf->hw.caps)) {
 506                         ethtool_link_ksettings_add_link_mode(ks, supported,
 507                                                              100baseT_Full);
 508                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 509                                                              100baseT_Full);
 510                 }
 511         }
 512         if (phy_types & I40E_CAP_PHY_TYPE_XAUI ||
 513             phy_types & I40E_CAP_PHY_TYPE_XFI ||
 514             phy_types & I40E_CAP_PHY_TYPE_SFI ||
 515             phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU ||
 516             phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC) {
 517                 ethtool_link_ksettings_add_link_mode(ks, supported,
 518                                                      10000baseT_Full);
 519                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 520                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 521                                                              10000baseT_Full);
 522         }
 523         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_T) {
 524                 ethtool_link_ksettings_add_link_mode(ks, supported,
 525                                                      10000baseT_Full);
 526                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 527                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 528                                                              10000baseT_Full);
 529         }
 530         if (phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T) {
 531                 ethtool_link_ksettings_add_link_mode(ks, supported,
 532                                                      2500baseT_Full);
 533                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB)
 534                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 535                                                              2500baseT_Full);
 536         }
 537         if (phy_types & I40E_CAP_PHY_TYPE_5GBASE_T) {
 538                 ethtool_link_ksettings_add_link_mode(ks, supported,
 539                                                      5000baseT_Full);
 540                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB)
 541                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 542                                                              5000baseT_Full);
 543         }
 544         if (phy_types & I40E_CAP_PHY_TYPE_XLAUI ||
 545             phy_types & I40E_CAP_PHY_TYPE_XLPPI ||
 546             phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC)
 547                 ethtool_link_ksettings_add_link_mode(ks, supported,
 548                                                      40000baseCR4_Full);
 549         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
 550             phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) {
 551                 ethtool_link_ksettings_add_link_mode(ks, supported,
 552                                                      40000baseCR4_Full);
 553                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB)
 554                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 555                                                              40000baseCR4_Full);
 556         }
 557         if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) {
 558                 ethtool_link_ksettings_add_link_mode(ks, supported,
 559                                                      100baseT_Full);
 560                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
 561                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 562                                                              100baseT_Full);
 563         }
 564         if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T) {
 565                 ethtool_link_ksettings_add_link_mode(ks, supported,
 566                                                      1000baseT_Full);
 567                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 568                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 569                                                              1000baseT_Full);
 570         }
 571         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4) {
 572                 ethtool_link_ksettings_add_link_mode(ks, supported,
 573                                                      40000baseSR4_Full);
 574                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 575                                                      40000baseSR4_Full);
 576         }
 577         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4) {
 578                 ethtool_link_ksettings_add_link_mode(ks, supported,
 579                                                      40000baseLR4_Full);
 580                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 581                                                      40000baseLR4_Full);
 582         }
 583         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) {
 584                 ethtool_link_ksettings_add_link_mode(ks, supported,
 585                                                      40000baseKR4_Full);
 586                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 587                                                      40000baseKR4_Full);
 588         }
 589         if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) {
 590                 ethtool_link_ksettings_add_link_mode(ks, supported,
 591                                                      20000baseKR2_Full);
 592                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB)
 593                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 594                                                              20000baseKR2_Full);
 595         }
 596         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) {
 597                 ethtool_link_ksettings_add_link_mode(ks, supported,
 598                                                      10000baseKX4_Full);
 599                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 600                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 601                                                              10000baseKX4_Full);
 602         }
 603         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR &&
 604             !test_bit(I40E_HW_CAP_CRT_RETIMER, pf->hw.caps)) {
 605                 ethtool_link_ksettings_add_link_mode(ks, supported,
 606                                                      10000baseKR_Full);
 607                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 608                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 609                                                              10000baseKR_Full);
 610         }
 611         if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX &&
 612             !test_bit(I40E_HW_CAP_CRT_RETIMER, pf->hw.caps)) {
 613                 ethtool_link_ksettings_add_link_mode(ks, supported,
 614                                                      1000baseKX_Full);
 615                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 616                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 617                                                              1000baseKX_Full);
 618         }
 619         /* need to add 25G PHY types */
 620         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR) {
 621                 ethtool_link_ksettings_add_link_mode(ks, supported,
 622                                                      25000baseKR_Full);
 623                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 624                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 625                                                              25000baseKR_Full);
 626         }
 627         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR) {
 628                 ethtool_link_ksettings_add_link_mode(ks, supported,
 629                                                      25000baseCR_Full);
 630                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 631                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 632                                                              25000baseCR_Full);
 633         }
 634         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
 635             phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR) {
 636                 ethtool_link_ksettings_add_link_mode(ks, supported,
 637                                                      25000baseSR_Full);
 638                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 639                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 640                                                              25000baseSR_Full);
 641         }
 642         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC ||
 643             phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) {
 644                 ethtool_link_ksettings_add_link_mode(ks, supported,
 645                                                      25000baseCR_Full);
 646                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 647                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 648                                                              25000baseCR_Full);
 649         }
 650         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR ||
 651             phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR ||
 652             phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
 653             phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR ||
 654             phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC ||
 655             phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) {
 656                 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE);
 657                 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);
 658                 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);
 659                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) {
 660                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 661                                                              FEC_NONE);
 662                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 663                                                              FEC_RS);
 664                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 665                                                              FEC_BASER);
 666                 }
 667         }
 668         /* need to add new 10G PHY types */
 669         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
 670             phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU) {
 671                 ethtool_link_ksettings_add_link_mode(ks, supported,
 672                                                      10000baseCR_Full);
 673                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 674                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 675                                                              10000baseCR_Full);
 676         }
 677         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR) {
 678                 ethtool_link_ksettings_add_link_mode(ks, supported,
 679                                                      10000baseSR_Full);
 680                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 681                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 682                                                              10000baseSR_Full);
 683         }
 684         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) {
 685                 ethtool_link_ksettings_add_link_mode(ks, supported,
 686                                                      10000baseLR_Full);
 687                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 688                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 689                                                              10000baseLR_Full);
 690         }
 691         if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
 692             phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
 693             phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) {
 694                 ethtool_link_ksettings_add_link_mode(ks, supported,
 695                                                      1000baseX_Full);
 696                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 697                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 698                                                              1000baseX_Full);
 699         }
 700         /* Autoneg PHY types */
 701         if (phy_types & I40E_CAP_PHY_TYPE_SGMII ||
 702             phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4 ||
 703             phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
 704             phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4 ||
 705             phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
 706             phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR ||
 707             phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR ||
 708             phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR ||
 709             phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2 ||
 710             phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR ||
 711             phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR ||
 712             phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4 ||
 713             phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR ||
 714             phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU ||
 715             phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
 716             phy_types & I40E_CAP_PHY_TYPE_10GBASE_T ||
 717             phy_types & I40E_CAP_PHY_TYPE_5GBASE_T ||
 718             phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T ||
 719             phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL ||
 720             phy_types & I40E_CAP_PHY_TYPE_1000BASE_T ||
 721             phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
 722             phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
 723             phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX ||
 724             phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) {
 725                 ethtool_link_ksettings_add_link_mode(ks, supported,
 726                                                      Autoneg);
 727                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 728                                                      Autoneg);
 729         }
 730 }
 731
 732 /**
 733  * i40e_get_settings_link_up_fec - Get the FEC mode encoding from mask
 734  * @req_fec_info: mask request FEC info
 735  * @ks: ethtool ksettings to fill in
 736  **/
 737 static void i40e_get_settings_link_up_fec(u8 req_fec_info,
 738                                           struct ethtool_link_ksettings *ks)
 739 {
 740         ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE);
 741         ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);
 742         ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);
 743
 744         if ((I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) &&
 745             (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info)) {
 746                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 747                                                      FEC_NONE);
 748                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 749                                                      FEC_BASER);
 750                 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);
 751         } else if (I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) {
 752                 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);
 753         } else if (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info) {
 754                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 755                                                      FEC_BASER);
 756         } else {
 757                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 758                                                      FEC_NONE);
 759         }
 760 }
 761
 762 /**
 763  * i40e_get_settings_link_up - Get the Link settings for when link is up
 764  * @hw: hw structure
 765  * @ks: ethtool ksettings to fill in
 766  * @netdev: network interface device structure
 767  * @pf: pointer to physical function struct
 768  **/
 769 static void i40e_get_settings_link_up(struct i40e_hw *hw,
 770                                       struct ethtool_link_ksettings *ks,
 771                                       struct net_device *netdev,
 772                                       struct i40e_pf *pf)
 773 {
 774         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 775         struct ethtool_link_ksettings cap_ksettings;
 776         u32 link_speed = hw_link_info->link_speed;
 777
 778         /* Initialize supported and advertised settings based on phy settings */
 779         switch (hw_link_info->phy_type) {
 780         case I40E_PHY_TYPE_40GBASE_CR4:
 781         case I40E_PHY_TYPE_40GBASE_CR4_CU:
 782                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 783                 ethtool_link_ksettings_add_link_mode(ks, supported,
 784                                                      40000baseCR4_Full);
 785                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 786                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 787                                                      40000baseCR4_Full);
 788                 break;
 789         case I40E_PHY_TYPE_XLAUI:
 790         case I40E_PHY_TYPE_XLPPI:
 791         case I40E_PHY_TYPE_40GBASE_AOC:
 792                 ethtool_link_ksettings_add_link_mode(ks, supported,
 793                                                      40000baseCR4_Full);
 794                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 795                                                      40000baseCR4_Full);
 796                 break;
 797         case I40E_PHY_TYPE_40GBASE_SR4:
 798                 ethtool_link_ksettings_add_link_mode(ks, supported,
 799                                                      40000baseSR4_Full);
 800                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 801                                                      40000baseSR4_Full);
 802                 break;
 803         case I40E_PHY_TYPE_40GBASE_LR4:
 804                 ethtool_link_ksettings_add_link_mode(ks, supported,
 805                                                      40000baseLR4_Full);
 806                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 807                                                      40000baseLR4_Full);
 808                 break;
 809         case I40E_PHY_TYPE_25GBASE_SR:
 810         case I40E_PHY_TYPE_25GBASE_LR:
 811         case I40E_PHY_TYPE_10GBASE_SR:
 812         case I40E_PHY_TYPE_10GBASE_LR:
 813         case I40E_PHY_TYPE_1000BASE_SX:
 814         case I40E_PHY_TYPE_1000BASE_LX:
 815                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 816                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 817                 ethtool_link_ksettings_add_link_mode(ks, supported,
 818                                                      25000baseSR_Full);
 819                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 820                                                      25000baseSR_Full);
 821                 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
 822                 ethtool_link_ksettings_add_link_mode(ks, supported,
 823                                                      10000baseSR_Full);
 824                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 825                                                      10000baseSR_Full);
 826                 ethtool_link_ksettings_add_link_mode(ks, supported,
 827                                                      10000baseLR_Full);
 828                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 829                                                      10000baseLR_Full);
 830                 ethtool_link_ksettings_add_link_mode(ks, supported,
 831                                                      1000baseX_Full);
 832                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 833                                                      1000baseX_Full);
 834                 ethtool_link_ksettings_add_link_mode(ks, supported,
 835                                                      10000baseT_Full);
 836                 if (hw_link_info->module_type[2] &
 837                     I40E_MODULE_TYPE_1000BASE_SX ||
 838                     hw_link_info->module_type[2] &
 839                     I40E_MODULE_TYPE_1000BASE_LX) {
 840                         ethtool_link_ksettings_add_link_mode(ks, supported,
 841                                                              1000baseT_Full);
 842                         if (hw_link_info->requested_speeds &
 843                             I40E_LINK_SPEED_1GB)
 844                                 ethtool_link_ksettings_add_link_mode(
 845                                      ks, advertising, 1000baseT_Full);
 846                 }
 847                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 848                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 849                                                              10000baseT_Full);
 850                 break;
 851         case I40E_PHY_TYPE_10GBASE_T:
 852         case I40E_PHY_TYPE_5GBASE_T_LINK_STATUS:
 853         case I40E_PHY_TYPE_2_5GBASE_T_LINK_STATUS:
 854         case I40E_PHY_TYPE_1000BASE_T:
 855         case I40E_PHY_TYPE_100BASE_TX:
 856                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 857                 ethtool_link_ksettings_add_link_mode(ks, supported,
 858                                                      10000baseT_Full);
 859                 ethtool_link_ksettings_add_link_mode(ks, supported,
 860                                                      5000baseT_Full);
 861                 ethtool_link_ksettings_add_link_mode(ks, supported,
 862                                                      2500baseT_Full);
 863                 ethtool_link_ksettings_add_link_mode(ks, supported,
 864                                                      1000baseT_Full);
 865                 ethtool_link_ksettings_add_link_mode(ks, supported,
 866                                                      100baseT_Full);
 867                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 868                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 869                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 870                                                              10000baseT_Full);
 871                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB)
 872                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 873                                                              5000baseT_Full);
 874                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB)
 875                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 876                                                              2500baseT_Full);
 877                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 878                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 879                                                              1000baseT_Full);
 880                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
 881                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 882                                                              100baseT_Full);
 883                 break;
 884         case I40E_PHY_TYPE_1000BASE_T_OPTICAL:
 885                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 886                 ethtool_link_ksettings_add_link_mode(ks, supported,
 887                                                      1000baseT_Full);
 888                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 889                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 890                                                      1000baseT_Full);
 891                 break;
 892         case I40E_PHY_TYPE_10GBASE_CR1_CU:
 893         case I40E_PHY_TYPE_10GBASE_CR1:
 894                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 895                 ethtool_link_ksettings_add_link_mode(ks, supported,
 896                                                      10000baseT_Full);
 897                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 898                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 899                                                      10000baseT_Full);
 900                 break;
 901         case I40E_PHY_TYPE_XAUI:
 902         case I40E_PHY_TYPE_XFI:
 903         case I40E_PHY_TYPE_SFI:
 904         case I40E_PHY_TYPE_10GBASE_SFPP_CU:
 905         case I40E_PHY_TYPE_10GBASE_AOC:
 906                 ethtool_link_ksettings_add_link_mode(ks, supported,
 907                                                      10000baseT_Full);
 908                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 909                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 910                                                              10000baseT_Full);
 911                 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
 912                 break;
 913         case I40E_PHY_TYPE_SGMII:
 914                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 915                 ethtool_link_ksettings_add_link_mode(ks, supported,
 916                                                      1000baseT_Full);
 917                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 918                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 919                                                              1000baseT_Full);
 920                 if (test_bit(I40E_HW_CAP_100M_SGMII, pf->hw.caps)) {
 921                         ethtool_link_ksettings_add_link_mode(ks, supported,
 922                                                              100baseT_Full);
 923                         if (hw_link_info->requested_speeds &
 924                             I40E_LINK_SPEED_100MB)
 925                                 ethtool_link_ksettings_add_link_mode(
 926                                       ks, advertising, 100baseT_Full);
 927                 }
 928                 break;
 929         case I40E_PHY_TYPE_40GBASE_KR4:
 930         case I40E_PHY_TYPE_25GBASE_KR:
 931         case I40E_PHY_TYPE_20GBASE_KR2:
 932         case I40E_PHY_TYPE_10GBASE_KR:
 933         case I40E_PHY_TYPE_10GBASE_KX4:
 934         case I40E_PHY_TYPE_1000BASE_KX:
 935                 ethtool_link_ksettings_add_link_mode(ks, supported,
 936                                                      40000baseKR4_Full);
 937                 ethtool_link_ksettings_add_link_mode(ks, supported,
 938                                                      25000baseKR_Full);
 939                 ethtool_link_ksettings_add_link_mode(ks, supported,
 940                                                      20000baseKR2_Full);
 941                 ethtool_link_ksettings_add_link_mode(ks, supported,
 942                                                      10000baseKR_Full);
 943                 ethtool_link_ksettings_add_link_mode(ks, supported,
 944                                                      10000baseKX4_Full);
 945                 ethtool_link_ksettings_add_link_mode(ks, supported,
 946                                                      1000baseKX_Full);
 947                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 948                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 949                                                      40000baseKR4_Full);
 950                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 951                                                      25000baseKR_Full);
 952                 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
 953                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 954                                                      20000baseKR2_Full);
 955                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 956                                                      10000baseKR_Full);
 957                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 958                                                      10000baseKX4_Full);
 959                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 960                                                      1000baseKX_Full);
 961                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 962                 break;
 963         case I40E_PHY_TYPE_25GBASE_CR:
 964                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 965                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 966                 ethtool_link_ksettings_add_link_mode(ks, supported,
 967                                                      25000baseCR_Full);
 968                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 969                                                      25000baseCR_Full);
 970                 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
 971
 972                 break;
 973         case I40E_PHY_TYPE_25GBASE_AOC:
 974         case I40E_PHY_TYPE_25GBASE_ACC:
 975                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 976                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 977                 ethtool_link_ksettings_add_link_mode(ks, supported,
 978                                                      25000baseCR_Full);
 979                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 980                                                      25000baseCR_Full);
 981                 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
 982
 983                 ethtool_link_ksettings_add_link_mode(ks, supported,
 984                                                      10000baseCR_Full);
 985                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 986                                                      10000baseCR_Full);
 987                 break;
 988         default:
 989                 /* if we got here and link is up something bad is afoot */
 990                 netdev_info(netdev,
 991                             "WARNING: Link is up but PHY type 0x%x is not recognized, or incorrect cable is in use\n",
 992                             hw_link_info->phy_type);
 993         }
 994
 995         /* Now that we've worked out everything that could be supported by the
 996          * current PHY type, get what is supported by the NVM and intersect
 997          * them to get what is truly supported
 998          */
 999         memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings));
1000         i40e_phy_type_to_ethtool(pf, &cap_ksettings);
1001         ethtool_intersect_link_masks(ks, &cap_ksettings);
1002
1003         /* Set speed and duplex */
1004         switch (link_speed) {
1005         case I40E_LINK_SPEED_40GB:
1006                 ks->base.speed = SPEED_40000;
1007                 break;
1008         case I40E_LINK_SPEED_25GB:
1009                 ks->base.speed = SPEED_25000;
1010                 break;
1011         case I40E_LINK_SPEED_20GB:
1012                 ks->base.speed = SPEED_20000;
1013                 break;
1014         case I40E_LINK_SPEED_10GB:
1015                 ks->base.speed = SPEED_10000;
1016                 break;
1017         case I40E_LINK_SPEED_5GB:
1018                 ks->base.speed = SPEED_5000;
1019                 break;
1020         case I40E_LINK_SPEED_2_5GB:
1021                 ks->base.speed = SPEED_2500;
1022                 break;
1023         case I40E_LINK_SPEED_1GB:
1024                 ks->base.speed = SPEED_1000;
1025                 break;
1026         case I40E_LINK_SPEED_100MB:
1027                 ks->base.speed = SPEED_100;
1028                 break;
1029         default:
1030                 ks->base.speed = SPEED_UNKNOWN;
1031                 break;
1032         }
1033         ks->base.duplex = DUPLEX_FULL;
1034 }
1035
1036 /**
1037  * i40e_get_settings_link_down - Get the Link settings for when link is down
1038  * @hw: hw structure
1039  * @ks: ethtool ksettings to fill in
1040  * @pf: pointer to physical function struct
1041  *
1042  * Reports link settings that can be determined when link is down
1043  **/
1044 static void i40e_get_settings_link_down(struct i40e_hw *hw,
1045                                         struct ethtool_link_ksettings *ks,
1046                                         struct i40e_pf *pf)
1047 {
1048         /* link is down and the driver needs to fall back on
1049          * supported phy types to figure out what info to display
1050          */
1051         i40e_phy_type_to_ethtool(pf, ks);
1052
1053         /* With no link speed and duplex are unknown */
1054         ks->base.speed = SPEED_UNKNOWN;
1055         ks->base.duplex = DUPLEX_UNKNOWN;
1056 }
1057
1058 /**
1059  * i40e_get_link_ksettings - Get Link Speed and Duplex settings
1060  * @netdev: network interface device structure
1061  * @ks: ethtool ksettings
1062  *
1063  * Reports speed/duplex settings based on media_type
1064  **/
1065 static int i40e_get_link_ksettings(struct net_device *netdev,
1066                                    struct ethtool_link_ksettings *ks)
1067 {
1068         struct i40e_netdev_priv *np = netdev_priv(netdev);
1069         struct i40e_pf *pf = np->vsi->back;
1070         struct i40e_hw *hw = &pf->hw;
1071         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1072         bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
1073
1074         ethtool_link_ksettings_zero_link_mode(ks, supported);
1075         ethtool_link_ksettings_zero_link_mode(ks, advertising);
1076
1077         if (link_up)
1078                 i40e_get_settings_link_up(hw, ks, netdev, pf);
1079         else
1080                 i40e_get_settings_link_down(hw, ks, pf);
1081
1082         /* Now set the settings that don't rely on link being up/down */
1083         /* Set autoneg settings */
1084         ks->base.autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
1085                             AUTONEG_ENABLE : AUTONEG_DISABLE);
1086
1087         /* Set media type settings */
1088         switch (hw->phy.media_type) {
1089         case I40E_MEDIA_TYPE_BACKPLANE:
1090                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1091                 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane);
1092                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1093                 ethtool_link_ksettings_add_link_mode(ks, advertising,
1094                                                      Backplane);
1095                 ks->base.port = PORT_NONE;
1096                 break;
1097         case I40E_MEDIA_TYPE_BASET:
1098                 ethtool_link_ksettings_add_link_mode(ks, supported, TP);
1099                 ethtool_link_ksettings_add_link_mode(ks, advertising, TP);
1100                 ks->base.port = PORT_TP;
1101                 break;
1102         case I40E_MEDIA_TYPE_DA:
1103         case I40E_MEDIA_TYPE_CX4:
1104                 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
1105                 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
1106                 ks->base.port = PORT_DA;
1107                 break;
1108         case I40E_MEDIA_TYPE_FIBER:
1109                 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
1110                 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
1111                 ks->base.port = PORT_FIBRE;
1112                 break;
1113         case I40E_MEDIA_TYPE_UNKNOWN:
1114         default:
1115                 ks->base.port = PORT_OTHER;
1116                 break;
1117         }
1118
1119         /* Set flow control settings */
1120         ethtool_link_ksettings_add_link_mode(ks, supported, Pause);
1121         ethtool_link_ksettings_add_link_mode(ks, supported, Asym_Pause);
1122
1123         switch (hw->fc.requested_mode) {
1124         case I40E_FC_FULL:
1125                 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
1126                 break;
1127         case I40E_FC_TX_PAUSE:
1128                 ethtool_link_ksettings_add_link_mode(ks, advertising,
1129                                                      Asym_Pause);
1130                 break;
1131         case I40E_FC_RX_PAUSE:
1132                 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
1133                 ethtool_link_ksettings_add_link_mode(ks, advertising,
1134                                                      Asym_Pause);
1135                 break;
1136         default:
1137                 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause);
1138                 ethtool_link_ksettings_del_link_mode(ks, advertising,
1139                                                      Asym_Pause);
1140                 break;
1141         }
1142
1143         return 0;
1144 }
1145
1146 #define I40E_LBIT_SIZE 8
1147 /**
1148  * i40e_speed_to_link_speed - Translate decimal speed to i40e_aq_link_speed
1149  * @speed: speed in decimal
1150  * @ks: ethtool ksettings
1151  *
1152  * Return i40e_aq_link_speed based on speed
1153  **/
1154 static enum i40e_aq_link_speed
1155 i40e_speed_to_link_speed(__u32 speed, const struct ethtool_link_ksettings *ks)
1156 {
1157         enum i40e_aq_link_speed link_speed = I40E_LINK_SPEED_UNKNOWN;
1158         bool speed_changed = false;
1159         int i, j;
1160
1161         static const struct {
1162                 __u32 speed;
1163                 enum i40e_aq_link_speed link_speed;
1164                 __u8 bit[I40E_LBIT_SIZE];
1165         } i40e_speed_lut[] = {
1166 #define I40E_LBIT(mode) ETHTOOL_LINK_MODE_ ## mode ##_Full_BIT
1167                 {SPEED_100, I40E_LINK_SPEED_100MB, {I40E_LBIT(100baseT)} },
1168                 {SPEED_1000, I40E_LINK_SPEED_1GB,
1169                  {I40E_LBIT(1000baseT), I40E_LBIT(1000baseX),
1170                   I40E_LBIT(1000baseKX)} },
1171                 {SPEED_10000, I40E_LINK_SPEED_10GB,
1172                  {I40E_LBIT(10000baseT), I40E_LBIT(10000baseKR),
1173                   I40E_LBIT(10000baseLR), I40E_LBIT(10000baseCR),
1174                   I40E_LBIT(10000baseSR), I40E_LBIT(10000baseKX4)} },
1175
1176                 {SPEED_25000, I40E_LINK_SPEED_25GB,
1177                  {I40E_LBIT(25000baseCR), I40E_LBIT(25000baseKR),
1178                   I40E_LBIT(25000baseSR)} },
1179                 {SPEED_40000, I40E_LINK_SPEED_40GB,
1180                  {I40E_LBIT(40000baseKR4), I40E_LBIT(40000baseCR4),
1181                   I40E_LBIT(40000baseSR4), I40E_LBIT(40000baseLR4)} },
1182                 {SPEED_20000, I40E_LINK_SPEED_20GB,
1183                  {I40E_LBIT(20000baseKR2)} },
1184                 {SPEED_2500, I40E_LINK_SPEED_2_5GB, {I40E_LBIT(2500baseT)} },
1185                 {SPEED_5000, I40E_LINK_SPEED_5GB, {I40E_LBIT(2500baseT)} }
1186 #undef I40E_LBIT
1187 };
1188
1189         for (i = 0; i < ARRAY_SIZE(i40e_speed_lut); i++) {
1190                 if (i40e_speed_lut[i].speed == speed) {
1191                         for (j = 0; j < I40E_LBIT_SIZE; j++) {
1192                                 if (test_bit(i40e_speed_lut[i].bit[j],
1193                                              ks->link_modes.supported)) {
1194                                         speed_changed = true;
1195                                         break;
1196                                 }
1197                                 if (!i40e_speed_lut[i].bit[j])
1198                                         break;
1199                         }
1200                         if (speed_changed) {
1201                                 link_speed = i40e_speed_lut[i].link_speed;
1202                                 break;
1203                         }
1204                 }
1205         }
1206         return link_speed;
1207 }
1208
1209 #undef I40E_LBIT_SIZE
1210
1211 /**
1212  * i40e_set_link_ksettings - Set Speed and Duplex
1213  * @netdev: network interface device structure
1214  * @ks: ethtool ksettings
1215  *
1216  * Set speed/duplex per media_types advertised/forced
1217  **/
1218 static int i40e_set_link_ksettings(struct net_device *netdev,
1219                                    const struct ethtool_link_ksettings *ks)
1220 {
1221         struct i40e_netdev_priv *np = netdev_priv(netdev);
1222         struct i40e_aq_get_phy_abilities_resp abilities;
1223         struct ethtool_link_ksettings safe_ks;
1224         struct ethtool_link_ksettings copy_ks;
1225         struct i40e_aq_set_phy_config config;
1226         struct i40e_pf *pf = np->vsi->back;
1227         enum i40e_aq_link_speed link_speed;
1228         struct i40e_vsi *vsi = np->vsi;
1229         struct i40e_hw *hw = &pf->hw;
1230         bool autoneg_changed = false;
1231         int timeout = 50;
1232         int status = 0;
1233         int err = 0;
1234         __u32 speed;
1235         u8 autoneg;
1236
1237         /* Changing port settings is not supported if this isn't the
1238          * port's controlling PF
1239          */
1240         if (hw->partition_id != 1) {
1241                 i40e_partition_setting_complaint(pf);
1242                 return -EOPNOTSUPP;
1243         }
1244         if (vsi->type != I40E_VSI_MAIN)
1245                 return -EOPNOTSUPP;
1246         if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET &&
1247             hw->phy.media_type != I40E_MEDIA_TYPE_FIBER &&
1248             hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE &&
1249             hw->phy.media_type != I40E_MEDIA_TYPE_DA &&
1250             hw->phy.link_info.link_info & I40E_AQ_LINK_UP)
1251                 return -EOPNOTSUPP;
1252         if (hw->device_id == I40E_DEV_ID_KX_B ||
1253             hw->device_id == I40E_DEV_ID_KX_C ||
1254             hw->device_id == I40E_DEV_ID_20G_KR2 ||
1255             hw->device_id == I40E_DEV_ID_20G_KR2_A ||
1256             hw->device_id == I40E_DEV_ID_25G_B ||
1257             hw->device_id == I40E_DEV_ID_KX_X722) {
1258                 netdev_info(netdev, "Changing settings is not supported on backplane.\n");
1259                 return -EOPNOTSUPP;
1260         }
1261
1262         /* copy the ksettings to copy_ks to avoid modifying the origin */
1263         memcpy(&copy_ks, ks, sizeof(struct ethtool_link_ksettings));
1264
1265         /* save autoneg out of ksettings */
1266         autoneg = copy_ks.base.autoneg;
1267         speed = copy_ks.base.speed;
1268
1269         /* get our own copy of the bits to check against */
1270         memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings));
1271         safe_ks.base.cmd = copy_ks.base.cmd;
1272         safe_ks.base.link_mode_masks_nwords =
1273                 copy_ks.base.link_mode_masks_nwords;
1274         i40e_get_link_ksettings(netdev, &safe_ks);
1275
1276         /* Get link modes supported by hardware and check against modes
1277          * requested by the user.  Return an error if unsupported mode was set.
1278          */
1279         if (!bitmap_subset(copy_ks.link_modes.advertising,
1280                            safe_ks.link_modes.supported,
1281                            __ETHTOOL_LINK_MODE_MASK_NBITS))
1282                 return -EINVAL;
1283
1284         /* set autoneg back to what it currently is */
1285         copy_ks.base.autoneg = safe_ks.base.autoneg;
1286         copy_ks.base.speed  = safe_ks.base.speed;
1287
1288         /* If copy_ks.base and safe_ks.base are not the same now, then they are
1289          * trying to set something that we do not support.
1290          */
1291         if (memcmp(&copy_ks.base, &safe_ks.base,
1292                    sizeof(struct ethtool_link_settings))) {
1293                 netdev_err(netdev, "Only speed and autoneg are supported.\n");
1294                 return -EOPNOTSUPP;
1295         }
1296
1297         while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) {
1298                 timeout--;
1299                 if (!timeout)
1300                         return -EBUSY;
1301                 usleep_range(1000, 2000);
1302         }
1303
1304         /* Get the current phy config */
1305         status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1306                                               NULL);
1307         if (status) {
1308                 err = -EAGAIN;
1309                 goto done;
1310         }
1311
1312         /* Copy abilities to config in case autoneg is not
1313          * set below
1314          */
1315         memset(&config, 0, sizeof(struct i40e_aq_set_phy_config));
1316         config.abilities = abilities.abilities;
1317
1318         /* Check autoneg */
1319         if (autoneg == AUTONEG_ENABLE) {
1320                 /* If autoneg was not already enabled */
1321                 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) {
1322                         /* If autoneg is not supported, return error */
1323                         if (!ethtool_link_ksettings_test_link_mode(&safe_ks,
1324                                                                    supported,
1325                                                                    Autoneg)) {
1326                                 netdev_info(netdev, "Autoneg not supported on this phy\n");
1327                                 err = -EINVAL;
1328                                 goto done;
1329                         }
1330                         /* Autoneg is allowed to change */
1331                         config.abilities = abilities.abilities |
1332                                            I40E_AQ_PHY_ENABLE_AN;
1333                         autoneg_changed = true;
1334                 }
1335         } else {
1336                 /* If autoneg is currently enabled */
1337                 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) {
1338                         /* If autoneg is supported 10GBASE_T is the only PHY
1339                          * that can disable it, so otherwise return error
1340                          */
1341                         if (ethtool_link_ksettings_test_link_mode(&safe_ks,
1342                                                                   supported,
1343                                                                   Autoneg) &&
1344                             hw->phy.media_type != I40E_MEDIA_TYPE_BASET) {
1345                                 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
1346                                 err = -EINVAL;
1347                                 goto done;
1348                         }
1349                         /* Autoneg is allowed to change */
1350                         config.abilities = abilities.abilities &
1351                                            ~I40E_AQ_PHY_ENABLE_AN;
1352                         autoneg_changed = true;
1353                 }
1354         }
1355
1356         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1357                                                   100baseT_Full))
1358                 config.link_speed |= I40E_LINK_SPEED_100MB;
1359         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1360                                                   1000baseT_Full) ||
1361             ethtool_link_ksettings_test_link_mode(ks, advertising,
1362                                                   1000baseX_Full) ||
1363             ethtool_link_ksettings_test_link_mode(ks, advertising,
1364                                                   1000baseKX_Full))
1365                 config.link_speed |= I40E_LINK_SPEED_1GB;
1366         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1367                                                   10000baseT_Full) ||
1368             ethtool_link_ksettings_test_link_mode(ks, advertising,
1369                                                   10000baseKX4_Full) ||
1370             ethtool_link_ksettings_test_link_mode(ks, advertising,
1371                                                   10000baseKR_Full) ||
1372             ethtool_link_ksettings_test_link_mode(ks, advertising,
1373                                                   10000baseCR_Full) ||
1374             ethtool_link_ksettings_test_link_mode(ks, advertising,
1375                                                   10000baseSR_Full) ||
1376             ethtool_link_ksettings_test_link_mode(ks, advertising,
1377                                                   10000baseLR_Full))
1378                 config.link_speed |= I40E_LINK_SPEED_10GB;
1379         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1380                                                   2500baseT_Full))
1381                 config.link_speed |= I40E_LINK_SPEED_2_5GB;
1382         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1383                                                   5000baseT_Full))
1384                 config.link_speed |= I40E_LINK_SPEED_5GB;
1385         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1386                                                   20000baseKR2_Full))
1387                 config.link_speed |= I40E_LINK_SPEED_20GB;
1388         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1389                                                   25000baseCR_Full) ||
1390             ethtool_link_ksettings_test_link_mode(ks, advertising,
1391                                                   25000baseKR_Full) ||
1392             ethtool_link_ksettings_test_link_mode(ks, advertising,
1393                                                   25000baseSR_Full))
1394                 config.link_speed |= I40E_LINK_SPEED_25GB;
1395         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1396                                                   40000baseKR4_Full) ||
1397             ethtool_link_ksettings_test_link_mode(ks, advertising,
1398                                                   40000baseCR4_Full) ||
1399             ethtool_link_ksettings_test_link_mode(ks, advertising,
1400                                                   40000baseSR4_Full) ||
1401             ethtool_link_ksettings_test_link_mode(ks, advertising,
1402                                                   40000baseLR4_Full))
1403                 config.link_speed |= I40E_LINK_SPEED_40GB;
1404
1405         /* Autonegotiation must be disabled to change speed */
1406         if ((speed != SPEED_UNKNOWN && safe_ks.base.speed != speed) &&
1407             (autoneg == AUTONEG_DISABLE ||
1408             (safe_ks.base.autoneg == AUTONEG_DISABLE && !autoneg_changed))) {
1409                 link_speed = i40e_speed_to_link_speed(speed, ks);
1410                 if (link_speed == I40E_LINK_SPEED_UNKNOWN) {
1411                         netdev_info(netdev, "Given speed is not supported\n");
1412                         err = -EOPNOTSUPP;
1413                         goto done;
1414                 } else {
1415                         config.link_speed = link_speed;
1416                 }
1417         } else {
1418                 if (safe_ks.base.speed != speed) {
1419                         netdev_info(netdev,
1420                                     "Unable to set speed, disable autoneg\n");
1421                         err = -EOPNOTSUPP;
1422                         goto done;
1423                 }
1424         }
1425
1426         /* If speed didn't get set, set it to what it currently is.
1427          * This is needed because if advertise is 0 (as it is when autoneg
1428          * is disabled) then speed won't get set.
1429          */
1430         if (!config.link_speed)
1431                 config.link_speed = abilities.link_speed;
1432         if (autoneg_changed || abilities.link_speed != config.link_speed) {
1433                 /* copy over the rest of the abilities */
1434                 config.phy_type = abilities.phy_type;
1435                 config.phy_type_ext = abilities.phy_type_ext;
1436                 config.eee_capability = abilities.eee_capability;
1437                 config.eeer = abilities.eeer_val;
1438                 config.low_power_ctrl = abilities.d3_lpan;
1439                 config.fec_config = abilities.fec_cfg_curr_mod_ext_info &
1440                                     I40E_AQ_PHY_FEC_CONFIG_MASK;
1441
1442                 /* save the requested speeds */
1443                 hw->phy.link_info.requested_speeds = config.link_speed;
1444                 /* set link and auto negotiation so changes take effect */
1445                 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
1446                 /* If link is up put link down */
1447                 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) {
1448                         /* Tell the OS link is going down, the link will go
1449                          * back up when fw says it is ready asynchronously
1450                          */
1451                         i40e_print_link_message(vsi, false);
1452                         netif_carrier_off(netdev);
1453                         netif_tx_stop_all_queues(netdev);
1454                 }
1455
1456                 /* make the aq call */
1457                 status = i40e_aq_set_phy_config(hw, &config, NULL);
1458                 if (status) {
1459                         netdev_info(netdev,
1460                                     "Set phy config failed, err %pe aq_err %s\n",
1461                                     ERR_PTR(status),
1462                                     i40e_aq_str(hw, hw->aq.asq_last_status));
1463                         err = -EAGAIN;
1464                         goto done;
1465                 }
1466
1467                 status = i40e_update_link_info(hw);
1468                 if (status)
1469                         netdev_dbg(netdev,
1470                                    "Updating link info failed with err %pe aq_err %s\n",
1471                                    ERR_PTR(status),
1472                                    i40e_aq_str(hw, hw->aq.asq_last_status));
1473
1474         } else {
1475                 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
1476         }
1477
1478 done:
1479         clear_bit(__I40E_CONFIG_BUSY, pf->state);
1480
1481         return err;
1482 }
1483
1484 static int i40e_set_fec_cfg(struct net_device *netdev, u8 fec_cfg)
1485 {
1486         struct i40e_netdev_priv *np = netdev_priv(netdev);
1487         struct i40e_aq_get_phy_abilities_resp abilities;
1488         struct i40e_pf *pf = np->vsi->back;
1489         struct i40e_hw *hw = &pf->hw;
1490         int status = 0;
1491         int err = 0;
1492
1493         /* Get the current phy config */
1494         memset(&abilities, 0, sizeof(abilities));
1495         status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1496                                               NULL);
1497         if (status) {
1498                 err = -EAGAIN;
1499                 goto done;
1500         }
1501
1502         if (abilities.fec_cfg_curr_mod_ext_info != fec_cfg) {
1503                 struct i40e_aq_set_phy_config config;
1504
1505                 memset(&config, 0, sizeof(config));
1506                 config.phy_type = abilities.phy_type;
1507                 config.abilities = abilities.abilities |
1508                                    I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
1509                 config.phy_type_ext = abilities.phy_type_ext;
1510                 config.link_speed = abilities.link_speed;
1511                 config.eee_capability = abilities.eee_capability;
1512                 config.eeer = abilities.eeer_val;
1513                 config.low_power_ctrl = abilities.d3_lpan;
1514                 config.fec_config = fec_cfg & I40E_AQ_PHY_FEC_CONFIG_MASK;
1515                 status = i40e_aq_set_phy_config(hw, &config, NULL);
1516                 if (status) {
1517                         netdev_info(netdev,
1518                                     "Set phy config failed, err %pe aq_err %s\n",
1519                                     ERR_PTR(status),
1520                                     i40e_aq_str(hw, hw->aq.asq_last_status));
1521                         err = -EAGAIN;
1522                         goto done;
1523                 }
1524                 i40e_set_fec_in_flags(fec_cfg, pf->flags);
1525                 status = i40e_update_link_info(hw);
1526                 if (status)
1527                         /* debug level message only due to relation to the link
1528                          * itself rather than to the FEC settings
1529                          * (e.g. no physical connection etc.)
1530                          */
1531                         netdev_dbg(netdev,
1532                                    "Updating link info failed with err %pe aq_err %s\n",
1533                                    ERR_PTR(status),
1534                                    i40e_aq_str(hw, hw->aq.asq_last_status));
1535         }
1536
1537 done:
1538         return err;
1539 }
1540
1541 static int i40e_get_fec_param(struct net_device *netdev,
1542                               struct ethtool_fecparam *fecparam)
1543 {
1544         struct i40e_netdev_priv *np = netdev_priv(netdev);
1545         struct i40e_aq_get_phy_abilities_resp abilities;
1546         struct i40e_pf *pf = np->vsi->back;
1547         struct i40e_hw *hw = &pf->hw;
1548         int status = 0;
1549         int err = 0;
1550         u8 fec_cfg;
1551
1552         /* Get the current phy config */
1553         memset(&abilities, 0, sizeof(abilities));
1554         status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1555                                               NULL);
1556         if (status) {
1557                 err = -EAGAIN;
1558                 goto done;
1559         }
1560
1561         fecparam->fec = 0;
1562         fec_cfg = abilities.fec_cfg_curr_mod_ext_info;
1563         if (fec_cfg & I40E_AQ_SET_FEC_AUTO)
1564                 fecparam->fec |= ETHTOOL_FEC_AUTO;
1565         else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_RS |
1566                  I40E_AQ_SET_FEC_ABILITY_RS))
1567                 fecparam->fec |= ETHTOOL_FEC_RS;
1568         else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_KR |
1569                  I40E_AQ_SET_FEC_ABILITY_KR))
1570                 fecparam->fec |= ETHTOOL_FEC_BASER;
1571         if (fec_cfg == 0)
1572                 fecparam->fec |= ETHTOOL_FEC_OFF;
1573
1574         if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_KR_ENA)
1575                 fecparam->active_fec = ETHTOOL_FEC_BASER;
1576         else if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_RS_ENA)
1577                 fecparam->active_fec = ETHTOOL_FEC_RS;
1578         else
1579                 fecparam->active_fec = ETHTOOL_FEC_OFF;
1580 done:
1581         return err;
1582 }
1583
1584 static int i40e_set_fec_param(struct net_device *netdev,
1585                               struct ethtool_fecparam *fecparam)
1586 {
1587         struct i40e_netdev_priv *np = netdev_priv(netdev);
1588         struct i40e_pf *pf = np->vsi->back;
1589         struct i40e_hw *hw = &pf->hw;
1590         u8 fec_cfg = 0;
1591
1592         if (hw->device_id != I40E_DEV_ID_25G_SFP28 &&
1593             hw->device_id != I40E_DEV_ID_25G_B &&
1594             hw->device_id != I40E_DEV_ID_KX_X722)
1595                 return -EPERM;
1596
1597         if (hw->mac.type == I40E_MAC_X722 &&
1598             !test_bit(I40E_HW_CAP_X722_FEC_REQUEST, hw->caps)) {
1599                 netdev_err(netdev, "Setting FEC encoding not supported by firmware. Please update the NVM image.\n");
1600                 return -EOPNOTSUPP;
1601         }
1602
1603         switch (fecparam->fec) {
1604         case ETHTOOL_FEC_AUTO:
1605                 fec_cfg = I40E_AQ_SET_FEC_AUTO;
1606                 break;
1607         case ETHTOOL_FEC_RS:
1608                 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS |
1609                              I40E_AQ_SET_FEC_ABILITY_RS);
1610                 break;
1611         case ETHTOOL_FEC_BASER:
1612                 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR |
1613                              I40E_AQ_SET_FEC_ABILITY_KR);
1614                 break;
1615         case ETHTOOL_FEC_OFF:
1616         case ETHTOOL_FEC_NONE:
1617                 fec_cfg = 0;
1618                 break;
1619         default:
1620                 dev_warn(&pf->pdev->dev, "Unsupported FEC mode: %d",
1621                          fecparam->fec);
1622                 return -EINVAL;
1623         }
1624
1625         return i40e_set_fec_cfg(netdev, fec_cfg);
1626 }
1627
1628 static int i40e_nway_reset(struct net_device *netdev)
1629 {
1630         /* restart autonegotiation */
1631         struct i40e_netdev_priv *np = netdev_priv(netdev);
1632         struct i40e_pf *pf = np->vsi->back;
1633         struct i40e_hw *hw = &pf->hw;
1634         bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP;
1635         int ret = 0;
1636
1637         ret = i40e_aq_set_link_restart_an(hw, link_up, NULL);
1638         if (ret) {
1639                 netdev_info(netdev, "link restart failed, err %pe aq_err %s\n",
1640                             ERR_PTR(ret),
1641                             i40e_aq_str(hw, hw->aq.asq_last_status));
1642                 return -EIO;
1643         }
1644
1645         return 0;
1646 }
1647
1648 /**
1649  * i40e_get_pauseparam -  Get Flow Control status
1650  * @netdev: netdevice structure
1651  * @pause: buffer to return pause parameters
1652  *
1653  * Return tx/rx-pause status
1654  **/
1655 static void i40e_get_pauseparam(struct net_device *netdev,
1656                                 struct ethtool_pauseparam *pause)
1657 {
1658         struct i40e_netdev_priv *np = netdev_priv(netdev);
1659         struct i40e_pf *pf = np->vsi->back;
1660         struct i40e_hw *hw = &pf->hw;
1661         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1662         struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
1663
1664         pause->autoneg =
1665                 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
1666                   AUTONEG_ENABLE : AUTONEG_DISABLE);
1667
1668         /* PFC enabled so report LFC as off */
1669         if (dcbx_cfg->pfc.pfcenable) {
1670                 pause->rx_pause = 0;
1671                 pause->tx_pause = 0;
1672                 return;
1673         }
1674
1675         if (hw->fc.current_mode == I40E_FC_RX_PAUSE) {
1676                 pause->rx_pause = 1;
1677         } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) {
1678                 pause->tx_pause = 1;
1679         } else if (hw->fc.current_mode == I40E_FC_FULL) {
1680                 pause->rx_pause = 1;
1681                 pause->tx_pause = 1;
1682         }
1683 }
1684
1685 /**
1686  * i40e_set_pauseparam - Set Flow Control parameter
1687  * @netdev: network interface device structure
1688  * @pause: return tx/rx flow control status
1689  **/
1690 static int i40e_set_pauseparam(struct net_device *netdev,
1691                                struct ethtool_pauseparam *pause)
1692 {
1693         struct i40e_netdev_priv *np = netdev_priv(netdev);
1694         struct i40e_pf *pf = np->vsi->back;
1695         struct i40e_vsi *vsi = np->vsi;
1696         struct i40e_hw *hw = &pf->hw;
1697         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1698         struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
1699         bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
1700         u8 aq_failures;
1701         int err = 0;
1702         int status;
1703         u32 is_an;
1704
1705         /* Changing the port's flow control is not supported if this isn't the
1706          * port's controlling PF
1707          */
1708         if (hw->partition_id != 1) {
1709                 i40e_partition_setting_complaint(pf);
1710                 return -EOPNOTSUPP;
1711         }
1712
1713         if (vsi->type != I40E_VSI_MAIN)
1714                 return -EOPNOTSUPP;
1715
1716         is_an = hw_link_info->an_info & I40E_AQ_AN_COMPLETED;
1717         if (pause->autoneg != is_an) {
1718                 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
1719                 return -EOPNOTSUPP;
1720         }
1721
1722         /* If we have link and don't have autoneg */
1723         if (!test_bit(__I40E_DOWN, pf->state) && !is_an) {
1724                 /* Send message that it might not necessarily work*/
1725                 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
1726         }
1727
1728         if (dcbx_cfg->pfc.pfcenable) {
1729                 netdev_info(netdev,
1730                             "Priority flow control enabled. Cannot set link flow control.\n");
1731                 return -EOPNOTSUPP;
1732         }
1733
1734         if (pause->rx_pause && pause->tx_pause)
1735                 hw->fc.requested_mode = I40E_FC_FULL;
1736         else if (pause->rx_pause && !pause->tx_pause)
1737                 hw->fc.requested_mode = I40E_FC_RX_PAUSE;
1738         else if (!pause->rx_pause && pause->tx_pause)
1739                 hw->fc.requested_mode = I40E_FC_TX_PAUSE;
1740         else if (!pause->rx_pause && !pause->tx_pause)
1741                 hw->fc.requested_mode = I40E_FC_NONE;
1742         else
1743                 return -EINVAL;
1744
1745         /* Tell the OS link is going down, the link will go back up when fw
1746          * says it is ready asynchronously
1747          */
1748         i40e_print_link_message(vsi, false);
1749         netif_carrier_off(netdev);
1750         netif_tx_stop_all_queues(netdev);
1751
1752         /* Set the fc mode and only restart an if link is up*/
1753         status = i40e_set_fc(hw, &aq_failures, link_up);
1754
1755         if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) {
1756                 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %pe aq_err %s\n",
1757                             ERR_PTR(status),
1758                             i40e_aq_str(hw, hw->aq.asq_last_status));
1759                 err = -EAGAIN;
1760         }
1761         if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) {
1762                 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %pe aq_err %s\n",
1763                             ERR_PTR(status),
1764                             i40e_aq_str(hw, hw->aq.asq_last_status));
1765                 err = -EAGAIN;
1766         }
1767         if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) {
1768                 netdev_info(netdev, "Set fc failed on the get_link_info call with err %pe aq_err %s\n",
1769                             ERR_PTR(status),
1770                             i40e_aq_str(hw, hw->aq.asq_last_status));
1771                 err = -EAGAIN;
1772         }
1773
1774         if (!test_bit(__I40E_DOWN, pf->state) && is_an) {
1775                 /* Give it a little more time to try to come back */
1776                 msleep(75);
1777                 if (!test_bit(__I40E_DOWN, pf->state))
1778                         return i40e_nway_reset(netdev);
1779         }
1780
1781         return err;
1782 }
1783
1784 static u32 i40e_get_msglevel(struct net_device *netdev)
1785 {
1786         struct i40e_netdev_priv *np = netdev_priv(netdev);
1787         struct i40e_pf *pf = np->vsi->back;
1788         u32 debug_mask = pf->hw.debug_mask;
1789
1790         if (debug_mask)
1791                 netdev_info(netdev, "i40e debug_mask: 0x%08X\n", debug_mask);
1792
1793         return pf->msg_enable;
1794 }
1795
1796 static void i40e_set_msglevel(struct net_device *netdev, u32 data)
1797 {
1798         struct i40e_netdev_priv *np = netdev_priv(netdev);
1799         struct i40e_pf *pf = np->vsi->back;
1800
1801         if (I40E_DEBUG_USER & data)
1802                 pf->hw.debug_mask = data;
1803         else
1804                 pf->msg_enable = data;
1805 }
1806
1807 static int i40e_get_regs_len(struct net_device *netdev)
1808 {
1809         int reg_count = 0;
1810         int i;
1811
1812         for (i = 0; i40e_reg_list[i].offset != 0; i++)
1813                 reg_count += i40e_reg_list[i].elements;
1814
1815         return reg_count * sizeof(u32);
1816 }
1817
1818 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
1819                           void *p)
1820 {
1821         struct i40e_netdev_priv *np = netdev_priv(netdev);
1822         struct i40e_pf *pf = np->vsi->back;
1823         struct i40e_hw *hw = &pf->hw;
1824         u32 *reg_buf = p;
1825         unsigned int i, j, ri;
1826         u32 reg;
1827
1828         /* Tell ethtool which driver-version-specific regs output we have.
1829          *
1830          * At some point, if we have ethtool doing special formatting of
1831          * this data, it will rely on this version number to know how to
1832          * interpret things.  Hence, this needs to be updated if/when the
1833          * diags register table is changed.
1834          */
1835         regs->version = 1;
1836
1837         /* loop through the diags reg table for what to print */
1838         ri = 0;
1839         for (i = 0; i40e_reg_list[i].offset != 0; i++) {
1840                 for (j = 0; j < i40e_reg_list[i].elements; j++) {
1841                         reg = i40e_reg_list[i].offset
1842                                 + (j * i40e_reg_list[i].stride);
1843                         reg_buf[ri++] = rd32(hw, reg);
1844                 }
1845         }
1846
1847 }
1848
1849 static int i40e_get_eeprom(struct net_device *netdev,
1850                            struct ethtool_eeprom *eeprom, u8 *bytes)
1851 {
1852         struct i40e_netdev_priv *np = netdev_priv(netdev);
1853         struct i40e_hw *hw = &np->vsi->back->hw;
1854         struct i40e_pf *pf = np->vsi->back;
1855         int ret_val = 0, len, offset;
1856         u8 *eeprom_buff;
1857         u16 i, sectors;
1858         bool last;
1859         u32 magic;
1860
1861 #define I40E_NVM_SECTOR_SIZE  4096
1862         if (eeprom->len == 0)
1863                 return -EINVAL;
1864
1865         /* check for NVMUpdate access method */
1866         magic = hw->vendor_id | (hw->device_id << 16);
1867         if (eeprom->magic && eeprom->magic != magic) {
1868                 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1869                 int errno = 0;
1870
1871                 /* make sure it is the right magic for NVMUpdate */
1872                 if ((eeprom->magic >> 16) != hw->device_id)
1873                         errno = -EINVAL;
1874                 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
1875                          test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
1876                         errno = -EBUSY;
1877                 else
1878                         ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1879
1880                 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1881                         dev_info(&pf->pdev->dev,
1882                                  "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1883                                  ret_val, hw->aq.asq_last_status, errno,
1884                                  (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1885                                  cmd->offset, cmd->data_size);
1886
1887                 return errno;
1888         }
1889
1890         /* normal ethtool get_eeprom support */
1891         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
1892
1893         eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL);
1894         if (!eeprom_buff)
1895                 return -ENOMEM;
1896
1897         ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
1898         if (ret_val) {
1899                 dev_info(&pf->pdev->dev,
1900                          "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1901                          ret_val, hw->aq.asq_last_status);
1902                 goto free_buff;
1903         }
1904
1905         sectors = eeprom->len / I40E_NVM_SECTOR_SIZE;
1906         sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0;
1907         len = I40E_NVM_SECTOR_SIZE;
1908         last = false;
1909         for (i = 0; i < sectors; i++) {
1910                 if (i == (sectors - 1)) {
1911                         len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i);
1912                         last = true;
1913                 }
1914                 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i);
1915                 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len,
1916                                 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i),
1917                                 last, NULL);
1918                 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) {
1919                         dev_info(&pf->pdev->dev,
1920                                  "read NVM failed, invalid offset 0x%x\n",
1921                                  offset);
1922                         break;
1923                 } else if (ret_val &&
1924                            hw->aq.asq_last_status == I40E_AQ_RC_EACCES) {
1925                         dev_info(&pf->pdev->dev,
1926                                  "read NVM failed, access, offset 0x%x\n",
1927                                  offset);
1928                         break;
1929                 } else if (ret_val) {
1930                         dev_info(&pf->pdev->dev,
1931                                  "read NVM failed offset %d err=%d status=0x%x\n",
1932                                  offset, ret_val, hw->aq.asq_last_status);
1933                         break;
1934                 }
1935         }
1936
1937         i40e_release_nvm(hw);
1938         memcpy(bytes, (u8 *)eeprom_buff, eeprom->len);
1939 free_buff:
1940         kfree(eeprom_buff);
1941         return ret_val;
1942 }
1943
1944 static int i40e_get_eeprom_len(struct net_device *netdev)
1945 {
1946         struct i40e_netdev_priv *np = netdev_priv(netdev);
1947         struct i40e_hw *hw = &np->vsi->back->hw;
1948         u32 val;
1949
1950 #define X722_EEPROM_SCOPE_LIMIT 0x5B9FFF
1951         if (hw->mac.type == I40E_MAC_X722) {
1952                 val = X722_EEPROM_SCOPE_LIMIT + 1;
1953                 return val;
1954         }
1955         val = FIELD_GET(I40E_GLPCI_LBARCTRL_FL_SIZE_MASK,
1956                         rd32(hw, I40E_GLPCI_LBARCTRL));
1957         /* register returns value in power of 2, 64Kbyte chunks. */
1958         val = (64 * 1024) * BIT(val);
1959         return val;
1960 }
1961
1962 static int i40e_set_eeprom(struct net_device *netdev,
1963                            struct ethtool_eeprom *eeprom, u8 *bytes)
1964 {
1965         struct i40e_netdev_priv *np = netdev_priv(netdev);
1966         struct i40e_hw *hw = &np->vsi->back->hw;
1967         struct i40e_pf *pf = np->vsi->back;
1968         struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1969         int ret_val = 0;
1970         int errno = 0;
1971         u32 magic;
1972
1973         /* normal ethtool set_eeprom is not supported */
1974         magic = hw->vendor_id | (hw->device_id << 16);
1975         if (eeprom->magic == magic)
1976                 errno = -EOPNOTSUPP;
1977         /* check for NVMUpdate access method */
1978         else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id)
1979                 errno = -EINVAL;
1980         else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
1981                  test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
1982                 errno = -EBUSY;
1983         else
1984                 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1985
1986         if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1987                 dev_info(&pf->pdev->dev,
1988                          "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1989                          ret_val, hw->aq.asq_last_status, errno,
1990                          (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1991                          cmd->offset, cmd->data_size);
1992
1993         return errno;
1994 }
1995
1996 static void i40e_get_drvinfo(struct net_device *netdev,
1997                              struct ethtool_drvinfo *drvinfo)
1998 {
1999         struct i40e_netdev_priv *np = netdev_priv(netdev);
2000         struct i40e_vsi *vsi = np->vsi;
2001         struct i40e_pf *pf = vsi->back;
2002
2003         strscpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver));
2004         i40e_nvm_version_str(&pf->hw, drvinfo->fw_version,
2005                              sizeof(drvinfo->fw_version));
2006         strscpy(drvinfo->bus_info, pci_name(pf->pdev),
2007                 sizeof(drvinfo->bus_info));
2008         drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN;
2009         if (pf->hw.pf_id == 0)
2010                 drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN;
2011 }
2012
2013 static u32 i40e_get_max_num_descriptors(struct i40e_pf *pf)
2014 {
2015         struct i40e_hw *hw = &pf->hw;
2016
2017         switch (hw->mac.type) {
2018         case I40E_MAC_XL710:
2019                 return I40E_MAX_NUM_DESCRIPTORS_XL710;
2020         default:
2021                 return I40E_MAX_NUM_DESCRIPTORS;
2022         }
2023 }
2024
2025 static void i40e_get_ringparam(struct net_device *netdev,
2026                                struct ethtool_ringparam *ring,
2027                                struct kernel_ethtool_ringparam *kernel_ring,
2028                                struct netlink_ext_ack *extack)
2029 {
2030         struct i40e_netdev_priv *np = netdev_priv(netdev);
2031         struct i40e_pf *pf = np->vsi->back;
2032         struct i40e_vsi *vsi = i40e_pf_get_main_vsi(pf);
2033
2034         ring->rx_max_pending = i40e_get_max_num_descriptors(pf);
2035         ring->tx_max_pending = i40e_get_max_num_descriptors(pf);
2036         ring->rx_mini_max_pending = 0;
2037         ring->rx_jumbo_max_pending = 0;
2038         ring->rx_pending = vsi->rx_rings[0]->count;
2039         ring->tx_pending = vsi->tx_rings[0]->count;
2040         ring->rx_mini_pending = 0;
2041         ring->rx_jumbo_pending = 0;
2042 }
2043
2044 static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index)
2045 {
2046         if (i40e_enabled_xdp_vsi(vsi)) {
2047                 return index < vsi->num_queue_pairs ||
2048                         (index >= vsi->alloc_queue_pairs &&
2049                          index < vsi->alloc_queue_pairs + vsi->num_queue_pairs);
2050         }
2051
2052         return index < vsi->num_queue_pairs;
2053 }
2054
2055 static int i40e_set_ringparam(struct net_device *netdev,
2056                               struct ethtool_ringparam *ring,
2057                               struct kernel_ethtool_ringparam *kernel_ring,
2058                               struct netlink_ext_ack *extack)
2059 {
2060         u32 new_rx_count, new_tx_count, max_num_descriptors;
2061         struct i40e_ring *tx_rings = NULL, *rx_rings = NULL;
2062         struct i40e_netdev_priv *np = netdev_priv(netdev);
2063         struct i40e_hw *hw = &np->vsi->back->hw;
2064         struct i40e_vsi *vsi = np->vsi;
2065         struct i40e_pf *pf = vsi->back;
2066         u16 tx_alloc_queue_pairs;
2067         int timeout = 50;
2068         int i, err = 0;
2069
2070         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
2071                 return -EINVAL;
2072
2073         max_num_descriptors = i40e_get_max_num_descriptors(pf);
2074         if (ring->tx_pending > max_num_descriptors ||
2075             ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS ||
2076             ring->rx_pending > max_num_descriptors ||
2077             ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) {
2078                 netdev_info(netdev,
2079                             "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n",
2080                             ring->tx_pending, ring->rx_pending,
2081                             I40E_MIN_NUM_DESCRIPTORS, max_num_descriptors);
2082                 return -EINVAL;
2083         }
2084
2085         new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
2086         new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
2087
2088         /* if nothing to do return success */
2089         if ((new_tx_count == vsi->tx_rings[0]->count) &&
2090             (new_rx_count == vsi->rx_rings[0]->count))
2091                 return 0;
2092
2093         /* If there is a AF_XDP page pool attached to any of Rx rings,
2094          * disallow changing the number of descriptors -- regardless
2095          * if the netdev is running or not.
2096          */
2097         if (i40e_xsk_any_rx_ring_enabled(vsi))
2098                 return -EBUSY;
2099
2100         while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) {
2101                 timeout--;
2102                 if (!timeout)
2103                         return -EBUSY;
2104                 usleep_range(1000, 2000);
2105         }
2106
2107         if (!netif_running(vsi->netdev)) {
2108                 /* simple case - set for the next time the netdev is started */
2109                 for (i = 0; i < vsi->num_queue_pairs; i++) {
2110                         vsi->tx_rings[i]->count = new_tx_count;
2111                         vsi->rx_rings[i]->count = new_rx_count;
2112                         if (i40e_enabled_xdp_vsi(vsi))
2113                                 vsi->xdp_rings[i]->count = new_tx_count;
2114                 }
2115                 vsi->num_tx_desc = new_tx_count;
2116                 vsi->num_rx_desc = new_rx_count;
2117                 goto done;
2118         }
2119
2120         /* We can't just free everything and then setup again,
2121          * because the ISRs in MSI-X mode get passed pointers
2122          * to the Tx and Rx ring structs.
2123          */
2124
2125         /* alloc updated Tx and XDP Tx resources */
2126         tx_alloc_queue_pairs = vsi->alloc_queue_pairs *
2127                                (i40e_enabled_xdp_vsi(vsi) ? 2 : 1);
2128         if (new_tx_count != vsi->tx_rings[0]->count) {
2129                 netdev_info(netdev,
2130                             "Changing Tx descriptor count from %d to %d.\n",
2131                             vsi->tx_rings[0]->count, new_tx_count);
2132                 tx_rings = kcalloc(tx_alloc_queue_pairs,
2133                                    sizeof(struct i40e_ring), GFP_KERNEL);
2134                 if (!tx_rings) {
2135                         err = -ENOMEM;
2136                         goto done;
2137                 }
2138
2139                 for (i = 0; i < tx_alloc_queue_pairs; i++) {
2140                         if (!i40e_active_tx_ring_index(vsi, i))
2141                                 continue;
2142
2143                         tx_rings[i] = *vsi->tx_rings[i];
2144                         tx_rings[i].count = new_tx_count;
2145                         /* the desc and bi pointers will be reallocated in the
2146                          * setup call
2147                          */
2148                         tx_rings[i].desc = NULL;
2149                         tx_rings[i].rx_bi = NULL;
2150                         err = i40e_setup_tx_descriptors(&tx_rings[i]);
2151                         if (err) {
2152                                 while (i) {
2153                                         i--;
2154                                         if (!i40e_active_tx_ring_index(vsi, i))
2155                                                 continue;
2156                                         i40e_free_tx_resources(&tx_rings[i]);
2157                                 }
2158                                 kfree(tx_rings);
2159                                 tx_rings = NULL;
2160
2161                                 goto done;
2162                         }
2163                 }
2164         }
2165
2166         /* alloc updated Rx resources */
2167         if (new_rx_count != vsi->rx_rings[0]->count) {
2168                 netdev_info(netdev,
2169                             "Changing Rx descriptor count from %d to %d\n",
2170                             vsi->rx_rings[0]->count, new_rx_count);
2171                 rx_rings = kcalloc(vsi->alloc_queue_pairs,
2172                                    sizeof(struct i40e_ring), GFP_KERNEL);
2173                 if (!rx_rings) {
2174                         err = -ENOMEM;
2175                         goto free_tx;
2176                 }
2177
2178                 for (i = 0; i < vsi->num_queue_pairs; i++) {
2179                         u16 unused;
2180
2181                         /* clone ring and setup updated count */
2182                         rx_rings[i] = *vsi->rx_rings[i];
2183                         rx_rings[i].count = new_rx_count;
2184                         /* the desc and bi pointers will be reallocated in the
2185                          * setup call
2186                          */
2187                         rx_rings[i].desc = NULL;
2188                         rx_rings[i].rx_bi = NULL;
2189                         /* Clear cloned XDP RX-queue info before setup call */
2190                         memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq));
2191                         /* this is to allow wr32 to have something to write to
2192                          * during early allocation of Rx buffers
2193                          */
2194                         rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS;
2195                         err = i40e_setup_rx_descriptors(&rx_rings[i]);
2196                         if (err)
2197                                 goto rx_unwind;
2198
2199                         /* now allocate the Rx buffers to make sure the OS
2200                          * has enough memory, any failure here means abort
2201                          */
2202                         unused = I40E_DESC_UNUSED(&rx_rings[i]);
2203                         err = i40e_alloc_rx_buffers(&rx_rings[i], unused);
2204 rx_unwind:
2205                         if (err) {
2206                                 do {
2207                                         i40e_free_rx_resources(&rx_rings[i]);
2208                                 } while (i--);
2209                                 kfree(rx_rings);
2210                                 rx_rings = NULL;
2211
2212                                 goto free_tx;
2213                         }
2214                 }
2215         }
2216
2217         /* Bring interface down, copy in the new ring info,
2218          * then restore the interface
2219          */
2220         i40e_down(vsi);
2221
2222         if (tx_rings) {
2223                 for (i = 0; i < tx_alloc_queue_pairs; i++) {
2224                         if (i40e_active_tx_ring_index(vsi, i)) {
2225                                 i40e_free_tx_resources(vsi->tx_rings[i]);
2226                                 *vsi->tx_rings[i] = tx_rings[i];
2227                         }
2228                 }
2229                 kfree(tx_rings);
2230                 tx_rings = NULL;
2231         }
2232
2233         if (rx_rings) {
2234                 for (i = 0; i < vsi->num_queue_pairs; i++) {
2235                         i40e_free_rx_resources(vsi->rx_rings[i]);
2236                         /* get the real tail offset */
2237                         rx_rings[i].tail = vsi->rx_rings[i]->tail;
2238                         /* this is to fake out the allocation routine
2239                          * into thinking it has to realloc everything
2240                          * but the recycling logic will let us re-use
2241                          * the buffers allocated above
2242                          */
2243                         rx_rings[i].next_to_use = 0;
2244                         rx_rings[i].next_to_clean = 0;
2245                         rx_rings[i].next_to_alloc = 0;
2246                         /* do a struct copy */
2247                         *vsi->rx_rings[i] = rx_rings[i];
2248                 }
2249                 kfree(rx_rings);
2250                 rx_rings = NULL;
2251         }
2252
2253         vsi->num_tx_desc = new_tx_count;
2254         vsi->num_rx_desc = new_rx_count;
2255         i40e_up(vsi);
2256
2257 free_tx:
2258         /* error cleanup if the Rx allocations failed after getting Tx */
2259         if (tx_rings) {
2260                 for (i = 0; i < tx_alloc_queue_pairs; i++) {
2261                         if (i40e_active_tx_ring_index(vsi, i))
2262                                 i40e_free_tx_resources(vsi->tx_rings[i]);
2263                 }
2264                 kfree(tx_rings);
2265                 tx_rings = NULL;
2266         }
2267
2268 done:
2269         clear_bit(__I40E_CONFIG_BUSY, pf->state);
2270
2271         return err;
2272 }
2273
2274 /**
2275  * i40e_get_stats_count - return the stats count for a device
2276  * @netdev: the netdev to return the count for
2277  *
2278  * Returns the total number of statistics for this netdev. Note that even
2279  * though this is a function, it is required that the count for a specific
2280  * netdev must never change. Basing the count on static values such as the
2281  * maximum number of queues or the device type is ok. However, the API for
2282  * obtaining stats is *not* safe against changes based on non-static
2283  * values such as the *current* number of queues, or runtime flags.
2284  *
2285  * If a statistic is not always enabled, return it as part of the count
2286  * anyways, always return its string, and report its value as zero.
2287  **/
2288 static int i40e_get_stats_count(struct net_device *netdev)
2289 {
2290         struct i40e_netdev_priv *np = netdev_priv(netdev);
2291         struct i40e_vsi *vsi = np->vsi;
2292         struct i40e_pf *pf = vsi->back;
2293         int stats_len;
2294
2295         if (vsi->type == I40E_VSI_MAIN && pf->hw.partition_id == 1)
2296                 stats_len = I40E_PF_STATS_LEN;
2297         else
2298                 stats_len = I40E_VSI_STATS_LEN;
2299
2300         /* The number of stats reported for a given net_device must remain
2301          * constant throughout the life of that device.
2302          *
2303          * This is because the API for obtaining the size, strings, and stats
2304          * is spread out over three separate ethtool ioctls. There is no safe
2305          * way to lock the number of stats across these calls, so we must
2306          * assume that they will never change.
2307          *
2308          * Due to this, we report the maximum number of queues, even if not
2309          * every queue is currently configured. Since we always allocate
2310          * queues in pairs, we'll just use netdev->num_tx_queues * 2. This
2311          * works because the num_tx_queues is set at device creation and never
2312          * changes.
2313          */
2314         stats_len += I40E_QUEUE_STATS_LEN * 2 * netdev->num_tx_queues;
2315
2316         return stats_len;
2317 }
2318
2319 static int i40e_get_sset_count(struct net_device *netdev, int sset)
2320 {
2321         struct i40e_netdev_priv *np = netdev_priv(netdev);
2322         struct i40e_vsi *vsi = np->vsi;
2323         struct i40e_pf *pf = vsi->back;
2324
2325         switch (sset) {
2326         case ETH_SS_TEST:
2327                 return I40E_TEST_LEN;
2328         case ETH_SS_STATS:
2329                 return i40e_get_stats_count(netdev);
2330         case ETH_SS_PRIV_FLAGS:
2331                 return I40E_PRIV_FLAGS_STR_LEN +
2332                         (pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0);
2333         default:
2334                 return -EOPNOTSUPP;
2335         }
2336 }
2337
2338 /**
2339  * i40e_get_veb_tc_stats - copy VEB TC statistics to formatted structure
2340  * @tc: the TC statistics in VEB structure (veb->tc_stats)
2341  * @i: the index of traffic class in (veb->tc_stats) structure to copy
2342  *
2343  * Copy VEB TC statistics from structure of arrays (veb->tc_stats) to
2344  * one dimensional structure i40e_cp_veb_tc_stats.
2345  * Produce formatted i40e_cp_veb_tc_stats structure of the VEB TC
2346  * statistics for the given TC.
2347  **/
2348 static struct i40e_cp_veb_tc_stats
2349 i40e_get_veb_tc_stats(struct i40e_veb_tc_stats *tc, unsigned int i)
2350 {
2351         struct i40e_cp_veb_tc_stats veb_tc = {
2352                 .tc_rx_packets = tc->tc_rx_packets[i],
2353                 .tc_rx_bytes = tc->tc_rx_bytes[i],
2354                 .tc_tx_packets = tc->tc_tx_packets[i],
2355                 .tc_tx_bytes = tc->tc_tx_bytes[i],
2356         };
2357
2358         return veb_tc;
2359 }
2360
2361 /**
2362  * i40e_get_pfc_stats - copy HW PFC statistics to formatted structure
2363  * @pf: the PF device structure
2364  * @i: the priority value to copy
2365  *
2366  * The PFC stats are found as arrays in pf->stats, which is not easy to pass
2367  * into i40e_add_ethtool_stats. Produce a formatted i40e_pfc_stats structure
2368  * of the PFC stats for the given priority.
2369  **/
2370 static inline struct i40e_pfc_stats
2371 i40e_get_pfc_stats(struct i40e_pf *pf, unsigned int i)
2372 {
2373 #define I40E_GET_PFC_STAT(stat, priority) \
2374         .stat = pf->stats.stat[priority]
2375
2376         struct i40e_pfc_stats pfc = {
2377                 I40E_GET_PFC_STAT(priority_xon_rx, i),
2378                 I40E_GET_PFC_STAT(priority_xoff_rx, i),
2379                 I40E_GET_PFC_STAT(priority_xon_tx, i),
2380                 I40E_GET_PFC_STAT(priority_xoff_tx, i),
2381                 I40E_GET_PFC_STAT(priority_xon_2_xoff, i),
2382         };
2383         return pfc;
2384 }
2385
2386 /**
2387  * i40e_get_ethtool_stats - copy stat values into supplied buffer
2388  * @netdev: the netdev to collect stats for
2389  * @stats: ethtool stats command structure
2390  * @data: ethtool supplied buffer
2391  *
2392  * Copy the stats values for this netdev into the buffer. Expects data to be
2393  * pre-allocated to the size returned by i40e_get_stats_count.. Note that all
2394  * statistics must be copied in a static order, and the count must not change
2395  * for a given netdev. See i40e_get_stats_count for more details.
2396  *
2397  * If a statistic is not currently valid (such as a disabled queue), this
2398  * function reports its value as zero.
2399  **/
2400 static void i40e_get_ethtool_stats(struct net_device *netdev,
2401                                    struct ethtool_stats *stats, u64 *data)
2402 {
2403         struct i40e_netdev_priv *np = netdev_priv(netdev);
2404         struct i40e_vsi *vsi = np->vsi;
2405         struct i40e_pf *pf = vsi->back;
2406         struct i40e_veb *veb = NULL;
2407         unsigned int i;
2408         bool veb_stats;
2409         u64 *p = data;
2410
2411         i40e_update_stats(vsi);
2412
2413         i40e_add_ethtool_stats(&data, i40e_get_vsi_stats_struct(vsi),
2414                                i40e_gstrings_net_stats);
2415
2416         i40e_add_ethtool_stats(&data, vsi, i40e_gstrings_misc_stats);
2417
2418         rcu_read_lock();
2419         for (i = 0; i < netdev->num_tx_queues; i++) {
2420                 i40e_add_queue_stats(&data, READ_ONCE(vsi->tx_rings[i]));
2421                 i40e_add_queue_stats(&data, READ_ONCE(vsi->rx_rings[i]));
2422         }
2423         rcu_read_unlock();
2424
2425         if (vsi->type != I40E_VSI_MAIN || pf->hw.partition_id != 1)
2426                 goto check_data_pointer;
2427
2428         veb = i40e_pf_get_main_veb(pf);
2429         veb_stats = veb && test_bit(I40E_FLAG_VEB_STATS_ENA, pf->flags);
2430
2431         if (veb_stats)
2432                 i40e_update_veb_stats(veb);
2433
2434         /* If veb stats aren't enabled, pass NULL instead of the veb so that
2435          * we initialize stats to zero and update the data pointer
2436          * intelligently
2437          */
2438         i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL,
2439                                i40e_gstrings_veb_stats);
2440
2441         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
2442                 if (veb_stats) {
2443                         struct i40e_cp_veb_tc_stats veb_tc =
2444                                 i40e_get_veb_tc_stats(&veb->tc_stats, i);
2445
2446                         i40e_add_ethtool_stats(&data, &veb_tc,
2447                                                i40e_gstrings_veb_tc_stats);
2448                 } else {
2449                         i40e_add_ethtool_stats(&data, NULL,
2450                                                i40e_gstrings_veb_tc_stats);
2451                 }
2452
2453         i40e_add_ethtool_stats(&data, pf, i40e_gstrings_stats);
2454
2455         for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
2456                 struct i40e_pfc_stats pfc = i40e_get_pfc_stats(pf, i);
2457
2458                 i40e_add_ethtool_stats(&data, &pfc, i40e_gstrings_pfc_stats);
2459         }
2460
2461 check_data_pointer:
2462         WARN_ONCE(data - p != i40e_get_stats_count(netdev),
2463                   "ethtool stats count mismatch!");
2464 }
2465
2466 /**
2467  * i40e_get_stat_strings - copy stat strings into supplied buffer
2468  * @netdev: the netdev to collect strings for
2469  * @data: supplied buffer to copy strings into
2470  *
2471  * Copy the strings related to stats for this netdev. Expects data to be
2472  * pre-allocated with the size reported by i40e_get_stats_count. Note that the
2473  * strings must be copied in a static order and the total count must not
2474  * change for a given netdev. See i40e_get_stats_count for more details.
2475  **/
2476 static void i40e_get_stat_strings(struct net_device *netdev, u8 *data)
2477 {
2478         struct i40e_netdev_priv *np = netdev_priv(netdev);
2479         struct i40e_vsi *vsi = np->vsi;
2480         struct i40e_pf *pf = vsi->back;
2481         unsigned int i;
2482         u8 *p = data;
2483
2484         i40e_add_stat_strings(&data, i40e_gstrings_net_stats);
2485
2486         i40e_add_stat_strings(&data, i40e_gstrings_misc_stats);
2487
2488         for (i = 0; i < netdev->num_tx_queues; i++) {
2489                 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats,
2490                                       "tx", i);
2491                 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats,
2492                                       "rx", i);
2493         }
2494
2495         if (vsi->type != I40E_VSI_MAIN || pf->hw.partition_id != 1)
2496                 goto check_data_pointer;
2497
2498         i40e_add_stat_strings(&data, i40e_gstrings_veb_stats);
2499
2500         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
2501                 i40e_add_stat_strings(&data, i40e_gstrings_veb_tc_stats, i);
2502
2503         i40e_add_stat_strings(&data, i40e_gstrings_stats);
2504
2505         for (i = 0; i < I40E_MAX_USER_PRIORITY; i++)
2506                 i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i);
2507
2508 check_data_pointer:
2509         WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN,
2510                   "stat strings count mismatch!");
2511 }
2512
2513 static void i40e_get_priv_flag_strings(struct net_device *netdev, u8 *data)
2514 {
2515         struct i40e_netdev_priv *np = netdev_priv(netdev);
2516         struct i40e_vsi *vsi = np->vsi;
2517         struct i40e_pf *pf = vsi->back;
2518         unsigned int i;
2519         u8 *p = data;
2520
2521         for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++)
2522                 ethtool_puts(&p, i40e_gstrings_priv_flags[i].flag_string);
2523         if (pf->hw.pf_id != 0)
2524                 return;
2525         for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++)
2526                 ethtool_puts(&p, i40e_gl_gstrings_priv_flags[i].flag_string);
2527 }
2528
2529 static void i40e_get_strings(struct net_device *netdev, u32 stringset,
2530                              u8 *data)
2531 {
2532         switch (stringset) {
2533         case ETH_SS_TEST:
2534                 memcpy(data, i40e_gstrings_test,
2535                        I40E_TEST_LEN * ETH_GSTRING_LEN);
2536                 break;
2537         case ETH_SS_STATS:
2538                 i40e_get_stat_strings(netdev, data);
2539                 break;
2540         case ETH_SS_PRIV_FLAGS:
2541                 i40e_get_priv_flag_strings(netdev, data);
2542                 break;
2543         default:
2544                 break;
2545         }
2546 }
2547
2548 static int i40e_get_ts_info(struct net_device *dev,
2549                             struct kernel_ethtool_ts_info *info)
2550 {
2551         struct i40e_pf *pf = i40e_netdev_to_pf(dev);
2552
2553         /* only report HW timestamping if PTP is enabled */
2554         if (!test_bit(I40E_FLAG_PTP_ENA, pf->flags))
2555                 return ethtool_op_get_ts_info(dev, info);
2556
2557         info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
2558                                 SOF_TIMESTAMPING_TX_HARDWARE |
2559                                 SOF_TIMESTAMPING_RX_HARDWARE |
2560                                 SOF_TIMESTAMPING_RAW_HARDWARE;
2561
2562         if (pf->ptp_clock)
2563                 info->phc_index = ptp_clock_index(pf->ptp_clock);
2564
2565         info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
2566
2567         info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
2568                            BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
2569                            BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
2570                            BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ);
2571
2572         if (test_bit(I40E_HW_CAP_PTP_L4, pf->hw.caps))
2573                 info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
2574                                     BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
2575                                     BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) |
2576                                     BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
2577                                     BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) |
2578                                     BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
2579                                     BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
2580                                     BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ);
2581
2582         return 0;
2583 }
2584
2585 static u64 i40e_link_test(struct net_device *netdev, u64 *data)
2586 {
2587         struct i40e_netdev_priv *np = netdev_priv(netdev);
2588         struct i40e_pf *pf = np->vsi->back;
2589         bool link_up = false;
2590         int status;
2591
2592         netif_info(pf, hw, netdev, "link test\n");
2593         status = i40e_get_link_status(&pf->hw, &link_up);
2594         if (status) {
2595                 netif_err(pf, drv, netdev, "link query timed out, please retry test\n");
2596                 *data = 1;
2597                 return *data;
2598         }
2599
2600         if (link_up)
2601                 *data = 0;
2602         else
2603                 *data = 1;
2604
2605         return *data;
2606 }
2607
2608 static u64 i40e_reg_test(struct net_device *netdev, u64 *data)
2609 {
2610         struct i40e_netdev_priv *np = netdev_priv(netdev);
2611         struct i40e_pf *pf = np->vsi->back;
2612
2613         netif_info(pf, hw, netdev, "register test\n");
2614         *data = i40e_diag_reg_test(&pf->hw);
2615
2616         return *data;
2617 }
2618
2619 static u64 i40e_eeprom_test(struct net_device *netdev, u64 *data)
2620 {
2621         struct i40e_netdev_priv *np = netdev_priv(netdev);
2622         struct i40e_pf *pf = np->vsi->back;
2623
2624         netif_info(pf, hw, netdev, "eeprom test\n");
2625         *data = i40e_diag_eeprom_test(&pf->hw);
2626
2627         /* forcebly clear the NVM Update state machine */
2628         pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT;
2629
2630         return *data;
2631 }
2632
2633 static u64 i40e_intr_test(struct net_device *netdev, u64 *data)
2634 {
2635         struct i40e_netdev_priv *np = netdev_priv(netdev);
2636         struct i40e_pf *pf = np->vsi->back;
2637         u16 swc_old = pf->sw_int_count;
2638
2639         netif_info(pf, hw, netdev, "interrupt test\n");
2640         wr32(&pf->hw, I40E_PFINT_DYN_CTL0,
2641              (I40E_PFINT_DYN_CTL0_INTENA_MASK |
2642               I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK |
2643               I40E_PFINT_DYN_CTL0_ITR_INDX_MASK |
2644               I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK |
2645               I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK));
2646         usleep_range(1000, 2000);
2647         *data = (swc_old == pf->sw_int_count);
2648
2649         return *data;
2650 }
2651
2652 static inline bool i40e_active_vfs(struct i40e_pf *pf)
2653 {
2654         struct i40e_vf *vfs = pf->vf;
2655         int i;
2656
2657         for (i = 0; i < pf->num_alloc_vfs; i++)
2658                 if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states))
2659                         return true;
2660         return false;
2661 }
2662
2663 static inline bool i40e_active_vmdqs(struct i40e_pf *pf)
2664 {
2665         return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2);
2666 }
2667
2668 static void i40e_diag_test(struct net_device *netdev,
2669                            struct ethtool_test *eth_test, u64 *data)
2670 {
2671         struct i40e_netdev_priv *np = netdev_priv(netdev);
2672         bool if_running = netif_running(netdev);
2673         struct i40e_pf *pf = np->vsi->back;
2674
2675         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
2676                 /* Offline tests */
2677                 netif_info(pf, drv, netdev, "offline testing starting\n");
2678
2679                 set_bit(__I40E_TESTING, pf->state);
2680
2681                 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
2682                     test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) {
2683                         dev_warn(&pf->pdev->dev,
2684                                  "Cannot start offline testing when PF is in reset state.\n");
2685                         goto skip_ol_tests;
2686                 }
2687
2688                 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) {
2689                         dev_warn(&pf->pdev->dev,
2690                                  "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");
2691                         goto skip_ol_tests;
2692                 }
2693
2694                 /* If the device is online then take it offline */
2695                 if (if_running)
2696                         /* indicate we're in test mode */
2697                         i40e_close(netdev);
2698                 else
2699                         /* This reset does not affect link - if it is
2700                          * changed to a type of reset that does affect
2701                          * link then the following link test would have
2702                          * to be moved to before the reset
2703                          */
2704                         i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
2705
2706                 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
2707                         eth_test->flags |= ETH_TEST_FL_FAILED;
2708
2709                 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM]))
2710                         eth_test->flags |= ETH_TEST_FL_FAILED;
2711
2712                 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR]))
2713                         eth_test->flags |= ETH_TEST_FL_FAILED;
2714
2715                 /* run reg test last, a reset is required after it */
2716                 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG]))
2717                         eth_test->flags |= ETH_TEST_FL_FAILED;
2718
2719                 clear_bit(__I40E_TESTING, pf->state);
2720                 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
2721
2722                 if (if_running)
2723                         i40e_open(netdev);
2724         } else {
2725                 /* Online tests */
2726                 netif_info(pf, drv, netdev, "online testing starting\n");
2727
2728                 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
2729                         eth_test->flags |= ETH_TEST_FL_FAILED;
2730
2731                 /* Offline only tests, not run in online; pass by default */
2732                 data[I40E_ETH_TEST_REG] = 0;
2733                 data[I40E_ETH_TEST_EEPROM] = 0;
2734                 data[I40E_ETH_TEST_INTR] = 0;
2735         }
2736
2737         netif_info(pf, drv, netdev, "testing finished\n");
2738         return;
2739
2740 skip_ol_tests:
2741         data[I40E_ETH_TEST_REG]         = 1;
2742         data[I40E_ETH_TEST_EEPROM]      = 1;
2743         data[I40E_ETH_TEST_INTR]        = 1;
2744         data[I40E_ETH_TEST_LINK]        = 1;
2745         eth_test->flags |= ETH_TEST_FL_FAILED;
2746         clear_bit(__I40E_TESTING, pf->state);
2747         netif_info(pf, drv, netdev, "testing failed\n");
2748 }
2749
2750 static void i40e_get_wol(struct net_device *netdev,
2751                          struct ethtool_wolinfo *wol)
2752 {
2753         struct i40e_netdev_priv *np = netdev_priv(netdev);
2754         struct i40e_pf *pf = np->vsi->back;
2755         struct i40e_hw *hw = &pf->hw;
2756         u16 wol_nvm_bits;
2757
2758         /* NVM bit on means WoL disabled for the port */
2759         i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
2760         if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) {
2761                 wol->supported = 0;
2762                 wol->wolopts = 0;
2763         } else {
2764                 wol->supported = WAKE_MAGIC;
2765                 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0);
2766         }
2767 }
2768
2769 /**
2770  * i40e_set_wol - set the WakeOnLAN configuration
2771  * @netdev: the netdev in question
2772  * @wol: the ethtool WoL setting data
2773  **/
2774 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
2775 {
2776         struct i40e_netdev_priv *np = netdev_priv(netdev);
2777         struct i40e_pf *pf = np->vsi->back;
2778         struct i40e_vsi *vsi = np->vsi;
2779         struct i40e_hw *hw = &pf->hw;
2780         u16 wol_nvm_bits;
2781
2782         /* WoL not supported if this isn't the controlling PF on the port */
2783         if (hw->partition_id != 1) {
2784                 i40e_partition_setting_complaint(pf);
2785                 return -EOPNOTSUPP;
2786         }
2787
2788         if (vsi->type != I40E_VSI_MAIN)
2789                 return -EOPNOTSUPP;
2790
2791         /* NVM bit on means WoL disabled for the port */
2792         i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
2793         if (BIT(hw->port) & wol_nvm_bits)
2794                 return -EOPNOTSUPP;
2795
2796         /* only magic packet is supported */
2797         if (wol->wolopts & ~WAKE_MAGIC)
2798                 return -EOPNOTSUPP;
2799
2800         /* is this a new value? */
2801         if (pf->wol_en != !!wol->wolopts) {
2802                 pf->wol_en = !!wol->wolopts;
2803                 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en);
2804         }
2805
2806         return 0;
2807 }
2808
2809 static int i40e_set_phys_id(struct net_device *netdev,
2810                             enum ethtool_phys_id_state state)
2811 {
2812         struct i40e_netdev_priv *np = netdev_priv(netdev);
2813         struct i40e_pf *pf = np->vsi->back;
2814         struct i40e_hw *hw = &pf->hw;
2815         int blink_freq = 2;
2816         u16 temp_status;
2817         int ret = 0;
2818
2819         switch (state) {
2820         case ETHTOOL_ID_ACTIVE:
2821                 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps)) {
2822                         pf->led_status = i40e_led_get(hw);
2823                 } else {
2824                         if (!test_bit(I40E_HW_CAP_AQ_PHY_ACCESS, hw->caps))
2825                                 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL,
2826                                                       NULL);
2827                         ret = i40e_led_get_phy(hw, &temp_status,
2828                                                &pf->phy_led_val);
2829                         pf->led_status = temp_status;
2830                 }
2831                 return blink_freq;
2832         case ETHTOOL_ID_ON:
2833                 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps))
2834                         i40e_led_set(hw, 0xf, false);
2835                 else
2836                         ret = i40e_led_set_phy(hw, true, pf->led_status, 0);
2837                 break;
2838         case ETHTOOL_ID_OFF:
2839                 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps))
2840                         i40e_led_set(hw, 0x0, false);
2841                 else
2842                         ret = i40e_led_set_phy(hw, false, pf->led_status, 0);
2843                 break;
2844         case ETHTOOL_ID_INACTIVE:
2845                 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps)) {
2846                         i40e_led_set(hw, pf->led_status, false);
2847                 } else {
2848                         ret = i40e_led_set_phy(hw, false, pf->led_status,
2849                                                (pf->phy_led_val |
2850                                                I40E_PHY_LED_MODE_ORIG));
2851                         if (!test_bit(I40E_HW_CAP_AQ_PHY_ACCESS, hw->caps))
2852                                 i40e_aq_set_phy_debug(hw, 0, NULL);
2853                 }
2854                 break;
2855         default:
2856                 break;
2857         }
2858         if (ret)
2859                 return -ENOENT;
2860         else
2861                 return 0;
2862 }
2863
2864 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt
2865  * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also
2866  * 125us (8000 interrupts per second) == ITR(62)
2867  */
2868
2869 /**
2870  * __i40e_get_coalesce - get per-queue coalesce settings
2871  * @netdev: the netdev to check
2872  * @ec: ethtool coalesce data structure
2873  * @queue: which queue to pick
2874  *
2875  * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs
2876  * are per queue. If queue is <0 then we default to queue 0 as the
2877  * representative value.
2878  **/
2879 static int __i40e_get_coalesce(struct net_device *netdev,
2880                                struct ethtool_coalesce *ec,
2881                                int queue)
2882 {
2883         struct i40e_netdev_priv *np = netdev_priv(netdev);
2884         struct i40e_ring *rx_ring, *tx_ring;
2885         struct i40e_vsi *vsi = np->vsi;
2886
2887         ec->tx_max_coalesced_frames_irq = vsi->work_limit;
2888
2889         /* rx and tx usecs has per queue value. If user doesn't specify the
2890          * queue, return queue 0's value to represent.
2891          */
2892         if (queue < 0)
2893                 queue = 0;
2894         else if (queue >= vsi->num_queue_pairs)
2895                 return -EINVAL;
2896
2897         rx_ring = vsi->rx_rings[queue];
2898         tx_ring = vsi->tx_rings[queue];
2899
2900         if (ITR_IS_DYNAMIC(rx_ring->itr_setting))
2901                 ec->use_adaptive_rx_coalesce = 1;
2902
2903         if (ITR_IS_DYNAMIC(tx_ring->itr_setting))
2904                 ec->use_adaptive_tx_coalesce = 1;
2905
2906         ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
2907         ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
2908
2909         /* we use the _usecs_high to store/set the interrupt rate limit
2910          * that the hardware supports, that almost but not quite
2911          * fits the original intent of the ethtool variable,
2912          * the rx_coalesce_usecs_high limits total interrupts
2913          * per second from both tx/rx sources.
2914          */
2915         ec->rx_coalesce_usecs_high = vsi->int_rate_limit;
2916         ec->tx_coalesce_usecs_high = vsi->int_rate_limit;
2917
2918         return 0;
2919 }
2920
2921 /**
2922  * i40e_get_coalesce - get a netdev's coalesce settings
2923  * @netdev: the netdev to check
2924  * @ec: ethtool coalesce data structure
2925  * @kernel_coal: ethtool CQE mode setting structure
2926  * @extack: extack for reporting error messages
2927  *
2928  * Gets the coalesce settings for a particular netdev. Note that if user has
2929  * modified per-queue settings, this only guarantees to represent queue 0. See
2930  * __i40e_get_coalesce for more details.
2931  **/
2932 static int i40e_get_coalesce(struct net_device *netdev,
2933                              struct ethtool_coalesce *ec,
2934                              struct kernel_ethtool_coalesce *kernel_coal,
2935                              struct netlink_ext_ack *extack)
2936 {
2937         return __i40e_get_coalesce(netdev, ec, -1);
2938 }
2939
2940 /**
2941  * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue
2942  * @netdev: netdev structure
2943  * @ec: ethtool's coalesce settings
2944  * @queue: the particular queue to read
2945  *
2946  * Will read a specific queue's coalesce settings
2947  **/
2948 static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue,
2949                                        struct ethtool_coalesce *ec)
2950 {
2951         return __i40e_get_coalesce(netdev, ec, queue);
2952 }
2953
2954 /**
2955  * i40e_set_itr_per_queue - set ITR values for specific queue
2956  * @vsi: the VSI to set values for
2957  * @ec: coalesce settings from ethtool
2958  * @queue: the queue to modify
2959  *
2960  * Change the ITR settings for a specific queue.
2961  **/
2962 static void i40e_set_itr_per_queue(struct i40e_vsi *vsi,
2963                                    struct ethtool_coalesce *ec,
2964                                    int queue)
2965 {
2966         struct i40e_ring *rx_ring = vsi->rx_rings[queue];
2967         struct i40e_ring *tx_ring = vsi->tx_rings[queue];
2968         struct i40e_pf *pf = vsi->back;
2969         struct i40e_hw *hw = &pf->hw;
2970         struct i40e_q_vector *q_vector;
2971         u16 intrl;
2972
2973         intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit);
2974
2975         rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs);
2976         tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs);
2977
2978         if (ec->use_adaptive_rx_coalesce)
2979                 rx_ring->itr_setting |= I40E_ITR_DYNAMIC;
2980         else
2981                 rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;
2982
2983         if (ec->use_adaptive_tx_coalesce)
2984                 tx_ring->itr_setting |= I40E_ITR_DYNAMIC;
2985         else
2986                 tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;
2987
2988         q_vector = rx_ring->q_vector;
2989         q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting);
2990
2991         q_vector = tx_ring->q_vector;
2992         q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting);
2993
2994         /* The interrupt handler itself will take care of programming
2995          * the Tx and Rx ITR values based on the values we have entered
2996          * into the q_vector, no need to write the values now.
2997          */
2998
2999         wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl);
3000         i40e_flush(hw);
3001 }
3002
3003 /**
3004  * __i40e_set_coalesce - set coalesce settings for particular queue
3005  * @netdev: the netdev to change
3006  * @ec: ethtool coalesce settings
3007  * @queue: the queue to change
3008  *
3009  * Sets the coalesce settings for a particular queue.
3010  **/
3011 static int __i40e_set_coalesce(struct net_device *netdev,
3012                                struct ethtool_coalesce *ec,
3013                                int queue)
3014 {
3015         struct i40e_netdev_priv *np = netdev_priv(netdev);
3016         u16 intrl_reg, cur_rx_itr, cur_tx_itr;
3017         struct i40e_vsi *vsi = np->vsi;
3018         struct i40e_pf *pf = vsi->back;
3019         int i;
3020
3021         if (ec->tx_max_coalesced_frames_irq)
3022                 vsi->work_limit = ec->tx_max_coalesced_frames_irq;
3023
3024         if (queue < 0) {
3025                 cur_rx_itr = vsi->rx_rings[0]->itr_setting;
3026                 cur_tx_itr = vsi->tx_rings[0]->itr_setting;
3027         } else if (queue < vsi->num_queue_pairs) {
3028                 cur_rx_itr = vsi->rx_rings[queue]->itr_setting;
3029                 cur_tx_itr = vsi->tx_rings[queue]->itr_setting;
3030         } else {
3031                 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n",
3032                            vsi->num_queue_pairs - 1);
3033                 return -EINVAL;
3034         }
3035
3036         cur_tx_itr &= ~I40E_ITR_DYNAMIC;
3037         cur_rx_itr &= ~I40E_ITR_DYNAMIC;
3038
3039         /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */
3040         if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) {
3041                 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n");
3042                 return -EINVAL;
3043         }
3044
3045         if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) {
3046                 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n",
3047                            INTRL_REG_TO_USEC(I40E_MAX_INTRL));
3048                 return -EINVAL;
3049         }
3050
3051         if (ec->rx_coalesce_usecs != cur_rx_itr &&
3052             ec->use_adaptive_rx_coalesce) {
3053                 netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n");
3054                 return -EINVAL;
3055         }
3056
3057         if (ec->rx_coalesce_usecs > I40E_MAX_ITR) {
3058                 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
3059                 return -EINVAL;
3060         }
3061
3062         if (ec->tx_coalesce_usecs != cur_tx_itr &&
3063             ec->use_adaptive_tx_coalesce) {
3064                 netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n");
3065                 return -EINVAL;
3066         }
3067
3068         if (ec->tx_coalesce_usecs > I40E_MAX_ITR) {
3069                 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n");
3070                 return -EINVAL;
3071         }
3072
3073         if (ec->use_adaptive_rx_coalesce && !cur_rx_itr)
3074                 ec->rx_coalesce_usecs = I40E_MIN_ITR;
3075
3076         if (ec->use_adaptive_tx_coalesce && !cur_tx_itr)
3077                 ec->tx_coalesce_usecs = I40E_MIN_ITR;
3078
3079         intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high);
3080         vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg);
3081         if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) {
3082                 netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n",
3083                            vsi->int_rate_limit);
3084         }
3085
3086         /* rx and tx usecs has per queue value. If user doesn't specify the
3087          * queue, apply to all queues.
3088          */
3089         if (queue < 0) {
3090                 for (i = 0; i < vsi->num_queue_pairs; i++)
3091                         i40e_set_itr_per_queue(vsi, ec, i);
3092         } else {
3093                 i40e_set_itr_per_queue(vsi, ec, queue);
3094         }
3095
3096         return 0;
3097 }
3098
3099 /**
3100  * i40e_set_coalesce - set coalesce settings for every queue on the netdev
3101  * @netdev: the netdev to change
3102  * @ec: ethtool coalesce settings
3103  * @kernel_coal: ethtool CQE mode setting structure
3104  * @extack: extack for reporting error messages
3105  *
3106  * This will set each queue to the same coalesce settings.
3107  **/
3108 static int i40e_set_coalesce(struct net_device *netdev,
3109                              struct ethtool_coalesce *ec,
3110                              struct kernel_ethtool_coalesce *kernel_coal,
3111                              struct netlink_ext_ack *extack)
3112 {
3113         return __i40e_set_coalesce(netdev, ec, -1);
3114 }
3115
3116 /**
3117  * i40e_set_per_queue_coalesce - set specific queue's coalesce settings
3118  * @netdev: the netdev to change
3119  * @ec: ethtool's coalesce settings
3120  * @queue: the queue to change
3121  *
3122  * Sets the specified queue's coalesce settings.
3123  **/
3124 static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue,
3125                                        struct ethtool_coalesce *ec)
3126 {
3127         return __i40e_set_coalesce(netdev, ec, queue);
3128 }
3129
3130 /**
3131  * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type
3132  * @pf: pointer to the physical function struct
3133  * @cmd: ethtool rxnfc command
3134  *
3135  * Returns Success if the flow is supported, else Invalid Input.
3136  **/
3137 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd)
3138 {
3139         struct i40e_hw *hw = &pf->hw;
3140         u8 flow_pctype = 0;
3141         u64 i_set = 0;
3142
3143         cmd->data = 0;
3144
3145         switch (cmd->flow_type) {
3146         case TCP_V4_FLOW:
3147                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
3148                 break;
3149         case UDP_V4_FLOW:
3150                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
3151                 break;
3152         case TCP_V6_FLOW:
3153                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
3154                 break;
3155         case UDP_V6_FLOW:
3156                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
3157                 break;
3158         case SCTP_V4_FLOW:
3159         case AH_ESP_V4_FLOW:
3160         case AH_V4_FLOW:
3161         case ESP_V4_FLOW:
3162         case IPV4_FLOW:
3163         case SCTP_V6_FLOW:
3164         case AH_ESP_V6_FLOW:
3165         case AH_V6_FLOW:
3166         case ESP_V6_FLOW:
3167         case IPV6_FLOW:
3168                 /* Default is src/dest for IP, no matter the L4 hashing */
3169                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
3170                 break;
3171         default:
3172                 return -EINVAL;
3173         }
3174
3175         /* Read flow based hash input set register */
3176         if (flow_pctype) {
3177                 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0,
3178                                               flow_pctype)) |
3179                         ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1,
3180                                                flow_pctype)) << 32);
3181         }
3182
3183         /* Process bits of hash input set */
3184         if (i_set) {
3185                 if (i_set & I40E_L4_SRC_MASK)
3186                         cmd->data |= RXH_L4_B_0_1;
3187                 if (i_set & I40E_L4_DST_MASK)
3188                         cmd->data |= RXH_L4_B_2_3;
3189
3190                 if (cmd->flow_type == TCP_V4_FLOW ||
3191                     cmd->flow_type == UDP_V4_FLOW) {
3192                         if (hw->mac.type == I40E_MAC_X722) {
3193                                 if (i_set & I40E_X722_L3_SRC_MASK)
3194                                         cmd->data |= RXH_IP_SRC;
3195                                 if (i_set & I40E_X722_L3_DST_MASK)
3196                                         cmd->data |= RXH_IP_DST;
3197                         } else {
3198                                 if (i_set & I40E_L3_SRC_MASK)
3199                                         cmd->data |= RXH_IP_SRC;
3200                                 if (i_set & I40E_L3_DST_MASK)
3201                                         cmd->data |= RXH_IP_DST;
3202                         }
3203                 } else if (cmd->flow_type == TCP_V6_FLOW ||
3204                           cmd->flow_type == UDP_V6_FLOW) {
3205                         if (i_set & I40E_L3_V6_SRC_MASK)
3206                                 cmd->data |= RXH_IP_SRC;
3207                         if (i_set & I40E_L3_V6_DST_MASK)
3208                                 cmd->data |= RXH_IP_DST;
3209                 }
3210         }
3211
3212         return 0;
3213 }
3214
3215 /**
3216  * i40e_check_mask - Check whether a mask field is set
3217  * @mask: the full mask value
3218  * @field: mask of the field to check
3219  *
3220  * If the given mask is fully set, return positive value. If the mask for the
3221  * field is fully unset, return zero. Otherwise return a negative error code.
3222  **/
3223 static int i40e_check_mask(u64 mask, u64 field)
3224 {
3225         u64 value = mask & field;
3226
3227         if (value == field)
3228                 return 1;
3229         else if (!value)
3230                 return 0;
3231         else
3232                 return -1;
3233 }
3234
3235 /**
3236  * i40e_parse_rx_flow_user_data - Deconstruct user-defined data
3237  * @fsp: pointer to rx flow specification
3238  * @data: pointer to userdef data structure for storage
3239  *
3240  * Read the user-defined data and deconstruct the value into a structure. No
3241  * other code should read the user-defined data, so as to ensure that every
3242  * place consistently reads the value correctly.
3243  *
3244  * The user-defined field is a 64bit Big Endian format value, which we
3245  * deconstruct by reading bits or bit fields from it. Single bit flags shall
3246  * be defined starting from the highest bits, while small bit field values
3247  * shall be defined starting from the lowest bits.
3248  *
3249  * Returns 0 if the data is valid, and non-zero if the userdef data is invalid
3250  * and the filter should be rejected. The data structure will always be
3251  * modified even if FLOW_EXT is not set.
3252  *
3253  **/
3254 static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
3255                                         struct i40e_rx_flow_userdef *data)
3256 {
3257         u64 value, mask;
3258         int valid;
3259
3260         /* Zero memory first so it's always consistent. */
3261         memset(data, 0, sizeof(*data));
3262
3263         if (!(fsp->flow_type & FLOW_EXT))
3264                 return 0;
3265
3266         value = be64_to_cpu(*((__be64 *)fsp->h_ext.data));
3267         mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data));
3268
3269 #define I40E_USERDEF_FLEX_WORD          GENMASK_ULL(15, 0)
3270 #define I40E_USERDEF_FLEX_OFFSET        GENMASK_ULL(31, 16)
3271 #define I40E_USERDEF_FLEX_FILTER        GENMASK_ULL(31, 0)
3272
3273         valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER);
3274         if (valid < 0) {
3275                 return -EINVAL;
3276         } else if (valid) {
3277                 data->flex_word = value & I40E_USERDEF_FLEX_WORD;
3278                 data->flex_offset =
3279                         FIELD_GET(I40E_USERDEF_FLEX_OFFSET, value);
3280                 data->flex_filter = true;
3281         }
3282
3283         return 0;
3284 }
3285
3286 /**
3287  * i40e_fill_rx_flow_user_data - Fill in user-defined data field
3288  * @fsp: pointer to rx_flow specification
3289  * @data: pointer to return userdef data
3290  *
3291  * Reads the userdef data structure and properly fills in the user defined
3292  * fields of the rx_flow_spec.
3293  **/
3294 static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
3295                                         struct i40e_rx_flow_userdef *data)
3296 {
3297         u64 value = 0, mask = 0;
3298
3299         if (data->flex_filter) {
3300                 value |= data->flex_word;
3301                 value |= (u64)data->flex_offset << 16;
3302                 mask |= I40E_USERDEF_FLEX_FILTER;
3303         }
3304
3305         if (value || mask)
3306                 fsp->flow_type |= FLOW_EXT;
3307
3308         *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value);
3309         *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask);
3310 }
3311
3312 /**
3313  * i40e_get_ethtool_fdir_all - Populates the rule count of a command
3314  * @pf: Pointer to the physical function struct
3315  * @cmd: The command to get or set Rx flow classification rules
3316  * @rule_locs: Array of used rule locations
3317  *
3318  * This function populates both the total and actual rule count of
3319  * the ethtool flow classification command
3320  *
3321  * Returns 0 on success or -EMSGSIZE if entry not found
3322  **/
3323 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf,
3324                                      struct ethtool_rxnfc *cmd,
3325                                      u32 *rule_locs)
3326 {
3327         struct i40e_fdir_filter *rule;
3328         struct hlist_node *node2;
3329         int cnt = 0;
3330
3331         /* report total rule count */
3332         cmd->data = i40e_get_fd_cnt_all(pf);
3333
3334         hlist_for_each_entry_safe(rule, node2,
3335                                   &pf->fdir_filter_list, fdir_node) {
3336                 if (cnt == cmd->rule_cnt)
3337                         return -EMSGSIZE;
3338
3339                 rule_locs[cnt] = rule->fd_id;
3340                 cnt++;
3341         }
3342
3343         cmd->rule_cnt = cnt;
3344
3345         return 0;
3346 }
3347
3348 /**
3349  * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow
3350  * @pf: Pointer to the physical function struct
3351  * @cmd: The command to get or set Rx flow classification rules
3352  *
3353  * This function looks up a filter based on the Rx flow classification
3354  * command and fills the flow spec info for it if found
3355  *
3356  * Returns 0 on success or -EINVAL if filter not found
3357  **/
3358 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf,
3359                                        struct ethtool_rxnfc *cmd)
3360 {
3361         struct ethtool_rx_flow_spec *fsp =
3362                         (struct ethtool_rx_flow_spec *)&cmd->fs;
3363         struct i40e_rx_flow_userdef userdef = {0};
3364         struct i40e_fdir_filter *rule = NULL;
3365         struct hlist_node *node2;
3366         struct i40e_vsi *vsi;
3367         u64 input_set;
3368         u16 index;
3369
3370         hlist_for_each_entry_safe(rule, node2,
3371                                   &pf->fdir_filter_list, fdir_node) {
3372                 if (fsp->location <= rule->fd_id)
3373                         break;
3374         }
3375
3376         if (!rule || fsp->location != rule->fd_id)
3377                 return -EINVAL;
3378
3379         fsp->flow_type = rule->flow_type;
3380         if (fsp->flow_type == IP_USER_FLOW) {
3381                 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
3382                 fsp->h_u.usr_ip4_spec.proto = 0;
3383                 fsp->m_u.usr_ip4_spec.proto = 0;
3384         }
3385
3386         if (fsp->flow_type == IPV6_USER_FLOW ||
3387             fsp->flow_type == UDP_V6_FLOW ||
3388             fsp->flow_type == TCP_V6_FLOW ||
3389             fsp->flow_type == SCTP_V6_FLOW) {
3390                 /* Reverse the src and dest notion, since the HW views them
3391                  * from Tx perspective where as the user expects it from
3392                  * Rx filter view.
3393                  */
3394                 fsp->h_u.tcp_ip6_spec.psrc = rule->dst_port;
3395                 fsp->h_u.tcp_ip6_spec.pdst = rule->src_port;
3396                 memcpy(fsp->h_u.tcp_ip6_spec.ip6dst, rule->src_ip6,
3397                        sizeof(__be32) * 4);
3398                 memcpy(fsp->h_u.tcp_ip6_spec.ip6src, rule->dst_ip6,
3399                        sizeof(__be32) * 4);
3400         } else {
3401                 /* Reverse the src and dest notion, since the HW views them
3402                  * from Tx perspective where as the user expects it from
3403                  * Rx filter view.
3404                  */
3405                 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port;
3406                 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port;
3407                 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip;
3408                 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip;
3409         }
3410
3411         switch (rule->flow_type) {
3412         case SCTP_V4_FLOW:
3413                 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP;
3414                 break;
3415         case TCP_V4_FLOW:
3416                 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
3417                 break;
3418         case UDP_V4_FLOW:
3419                 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
3420                 break;
3421         case SCTP_V6_FLOW:
3422                 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP;
3423                 break;
3424         case TCP_V6_FLOW:
3425                 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
3426                 break;
3427         case UDP_V6_FLOW:
3428                 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
3429                 break;
3430         case IP_USER_FLOW:
3431                 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;
3432                 break;
3433         case IPV6_USER_FLOW:
3434                 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER;
3435                 break;
3436         default:
3437                 /* If we have stored a filter with a flow type not listed here
3438                  * it is almost certainly a driver bug. WARN(), and then
3439                  * assign the input_set as if all fields are enabled to avoid
3440                  * reading unassigned memory.
3441                  */
3442                 WARN(1, "Missing input set index for flow_type %d\n",
3443                      rule->flow_type);
3444                 input_set = 0xFFFFFFFFFFFFFFFFULL;
3445                 goto no_input_set;
3446         }
3447
3448         input_set = i40e_read_fd_input_set(pf, index);
3449
3450 no_input_set:
3451         if (input_set & I40E_L3_V6_SRC_MASK) {
3452                 fsp->m_u.tcp_ip6_spec.ip6src[0] = htonl(0xFFFFFFFF);
3453                 fsp->m_u.tcp_ip6_spec.ip6src[1] = htonl(0xFFFFFFFF);
3454                 fsp->m_u.tcp_ip6_spec.ip6src[2] = htonl(0xFFFFFFFF);
3455                 fsp->m_u.tcp_ip6_spec.ip6src[3] = htonl(0xFFFFFFFF);
3456         }
3457
3458         if (input_set & I40E_L3_V6_DST_MASK) {
3459                 fsp->m_u.tcp_ip6_spec.ip6dst[0] = htonl(0xFFFFFFFF);
3460                 fsp->m_u.tcp_ip6_spec.ip6dst[1] = htonl(0xFFFFFFFF);
3461                 fsp->m_u.tcp_ip6_spec.ip6dst[2] = htonl(0xFFFFFFFF);
3462                 fsp->m_u.tcp_ip6_spec.ip6dst[3] = htonl(0xFFFFFFFF);
3463         }
3464
3465         if (input_set & I40E_L3_SRC_MASK)
3466                 fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF);
3467
3468         if (input_set & I40E_L3_DST_MASK)
3469                 fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF);
3470
3471         if (input_set & I40E_L4_SRC_MASK)
3472                 fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF);
3473
3474         if (input_set & I40E_L4_DST_MASK)
3475                 fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF);
3476
3477         if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET)
3478                 fsp->ring_cookie = RX_CLS_FLOW_DISC;
3479         else
3480                 fsp->ring_cookie = rule->q_index;
3481
3482         if (rule->vlan_tag) {
3483                 fsp->h_ext.vlan_etype = rule->vlan_etype;
3484                 fsp->m_ext.vlan_etype = htons(0xFFFF);
3485                 fsp->h_ext.vlan_tci = rule->vlan_tag;
3486                 fsp->m_ext.vlan_tci = htons(0xFFFF);
3487                 fsp->flow_type |= FLOW_EXT;
3488         }
3489
3490         vsi = i40e_pf_get_main_vsi(pf);
3491         if (rule->dest_vsi != vsi->id) {
3492                 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi);
3493                 if (vsi && vsi->type == I40E_VSI_SRIOV) {
3494                         /* VFs are zero-indexed by the driver, but ethtool
3495                          * expects them to be one-indexed, so add one here
3496                          */
3497                         u64 ring_vf = vsi->vf_id + 1;
3498
3499                         ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF;
3500                         fsp->ring_cookie |= ring_vf;
3501                 }
3502         }
3503
3504         if (rule->flex_filter) {
3505                 userdef.flex_filter = true;
3506                 userdef.flex_word = be16_to_cpu(rule->flex_word);
3507                 userdef.flex_offset = rule->flex_offset;
3508         }
3509
3510         i40e_fill_rx_flow_user_data(fsp, &userdef);
3511
3512         return 0;
3513 }
3514
3515 /**
3516  * i40e_get_rxnfc - command to get RX flow classification rules
3517  * @netdev: network interface device structure
3518  * @cmd: ethtool rxnfc command
3519  * @rule_locs: pointer to store rule data
3520  *
3521  * Returns Success if the command is supported.
3522  **/
3523 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
3524                           u32 *rule_locs)
3525 {
3526         struct i40e_netdev_priv *np = netdev_priv(netdev);
3527         struct i40e_vsi *vsi = np->vsi;
3528         struct i40e_pf *pf = vsi->back;
3529         int ret = -EOPNOTSUPP;
3530
3531         switch (cmd->cmd) {
3532         case ETHTOOL_GRXRINGS:
3533                 cmd->data = vsi->rss_size;
3534                 ret = 0;
3535                 break;
3536         case ETHTOOL_GRXFH:
3537                 ret = i40e_get_rss_hash_opts(pf, cmd);
3538                 break;
3539         case ETHTOOL_GRXCLSRLCNT:
3540                 cmd->rule_cnt = pf->fdir_pf_active_filters;
3541                 /* report total rule count */
3542                 cmd->data = i40e_get_fd_cnt_all(pf);
3543                 ret = 0;
3544                 break;
3545         case ETHTOOL_GRXCLSRULE:
3546                 ret = i40e_get_ethtool_fdir_entry(pf, cmd);
3547                 break;
3548         case ETHTOOL_GRXCLSRLALL:
3549                 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs);
3550                 break;
3551         default:
3552                 break;
3553         }
3554
3555         return ret;
3556 }
3557
3558 /**
3559  * i40e_get_rss_hash_bits - Read RSS Hash bits from register
3560  * @hw: hw structure
3561  * @nfc: pointer to user request
3562  * @i_setc: bits currently set
3563  *
3564  * Returns value of bits to be set per user request
3565  **/
3566 static u64 i40e_get_rss_hash_bits(struct i40e_hw *hw,
3567                                   struct ethtool_rxnfc *nfc,
3568                                   u64 i_setc)
3569 {
3570         u64 i_set = i_setc;
3571         u64 src_l3 = 0, dst_l3 = 0;
3572
3573         if (nfc->data & RXH_L4_B_0_1)
3574                 i_set |= I40E_L4_SRC_MASK;
3575         else
3576                 i_set &= ~I40E_L4_SRC_MASK;
3577         if (nfc->data & RXH_L4_B_2_3)
3578                 i_set |= I40E_L4_DST_MASK;
3579         else
3580                 i_set &= ~I40E_L4_DST_MASK;
3581
3582         if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) {
3583                 src_l3 = I40E_L3_V6_SRC_MASK;
3584                 dst_l3 = I40E_L3_V6_DST_MASK;
3585         } else if (nfc->flow_type == TCP_V4_FLOW ||
3586                   nfc->flow_type == UDP_V4_FLOW) {
3587                 if (hw->mac.type == I40E_MAC_X722) {
3588                         src_l3 = I40E_X722_L3_SRC_MASK;
3589                         dst_l3 = I40E_X722_L3_DST_MASK;
3590                 } else {
3591                         src_l3 = I40E_L3_SRC_MASK;
3592                         dst_l3 = I40E_L3_DST_MASK;
3593                 }
3594         } else {
3595                 /* Any other flow type are not supported here */
3596                 return i_set;
3597         }
3598
3599         if (nfc->data & RXH_IP_SRC)
3600                 i_set |= src_l3;
3601         else
3602                 i_set &= ~src_l3;
3603         if (nfc->data & RXH_IP_DST)
3604                 i_set |= dst_l3;
3605         else
3606                 i_set &= ~dst_l3;
3607
3608         return i_set;
3609 }
3610
3611 #define FLOW_PCTYPES_SIZE 64
3612 /**
3613  * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash
3614  * @pf: pointer to the physical function struct
3615  * @nfc: ethtool rxnfc command
3616  *
3617  * Returns Success if the flow input set is supported.
3618  **/
3619 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
3620 {
3621         struct i40e_hw *hw = &pf->hw;
3622         u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) |
3623                    ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32);
3624         DECLARE_BITMAP(flow_pctypes, FLOW_PCTYPES_SIZE);
3625         u64 i_set, i_setc;
3626
3627         bitmap_zero(flow_pctypes, FLOW_PCTYPES_SIZE);
3628
3629         if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) {
3630                 dev_err(&pf->pdev->dev,
3631                         "Change of RSS hash input set is not supported when MFP mode is enabled\n");
3632                 return -EOPNOTSUPP;
3633         }
3634
3635         /* RSS does not support anything other than hashing
3636          * to queues on src and dst IPs and ports
3637          */
3638         if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
3639                           RXH_L4_B_0_1 | RXH_L4_B_2_3))
3640                 return -EINVAL;
3641
3642         switch (nfc->flow_type) {
3643         case TCP_V4_FLOW:
3644                 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_TCP, flow_pctypes);
3645                 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE,
3646                              pf->hw.caps))
3647                         set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK,
3648                                 flow_pctypes);
3649                 break;
3650         case TCP_V6_FLOW:
3651                 set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_TCP, flow_pctypes);
3652                 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE,
3653                              pf->hw.caps))
3654                         set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK,
3655                                 flow_pctypes);
3656                 break;
3657         case UDP_V4_FLOW:
3658                 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_UDP, flow_pctypes);
3659                 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE,
3660                              pf->hw.caps)) {
3661                         set_bit(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP,
3662                                 flow_pctypes);
3663                         set_bit(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP,
3664                                 flow_pctypes);
3665                 }
3666                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
3667                 break;
3668         case UDP_V6_FLOW:
3669                 set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_UDP, flow_pctypes);
3670                 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE,
3671                              pf->hw.caps)) {
3672                         set_bit(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP,
3673                                 flow_pctypes);
3674                         set_bit(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP,
3675                                 flow_pctypes);
3676                 }
3677                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
3678                 break;
3679         case AH_ESP_V4_FLOW:
3680         case AH_V4_FLOW:
3681         case ESP_V4_FLOW:
3682         case SCTP_V4_FLOW:
3683                 if ((nfc->data & RXH_L4_B_0_1) ||
3684                     (nfc->data & RXH_L4_B_2_3))
3685                         return -EINVAL;
3686                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);
3687                 break;
3688         case AH_ESP_V6_FLOW:
3689         case AH_V6_FLOW:
3690         case ESP_V6_FLOW:
3691         case SCTP_V6_FLOW:
3692                 if ((nfc->data & RXH_L4_B_0_1) ||
3693                     (nfc->data & RXH_L4_B_2_3))
3694                         return -EINVAL;
3695                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);
3696                 break;
3697         case IPV4_FLOW:
3698                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) |
3699                         BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
3700                 break;
3701         case IPV6_FLOW:
3702                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) |
3703                         BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
3704                 break;
3705         default:
3706                 return -EINVAL;
3707         }
3708
3709         if (bitmap_weight(flow_pctypes, FLOW_PCTYPES_SIZE)) {
3710                 u8 flow_id;
3711
3712                 for_each_set_bit(flow_id, flow_pctypes, FLOW_PCTYPES_SIZE) {
3713                         i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id)) |
3714                                  ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id)) << 32);
3715                         i_set = i40e_get_rss_hash_bits(&pf->hw, nfc, i_setc);
3716
3717                         i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id),
3718                                           (u32)i_set);
3719                         i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id),
3720                                           (u32)(i_set >> 32));
3721                         hena |= BIT_ULL(flow_id);
3722                 }
3723         }
3724
3725         i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena);
3726         i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));
3727         i40e_flush(hw);
3728
3729         return 0;
3730 }
3731
3732 /**
3733  * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry
3734  * @vsi: Pointer to the targeted VSI
3735  * @input: The filter to update or NULL to indicate deletion
3736  * @sw_idx: Software index to the filter
3737  * @cmd: The command to get or set Rx flow classification rules
3738  *
3739  * This function updates (or deletes) a Flow Director entry from
3740  * the hlist of the corresponding PF
3741  *
3742  * Returns 0 on success
3743  **/
3744 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi,
3745                                           struct i40e_fdir_filter *input,
3746                                           u16 sw_idx,
3747                                           struct ethtool_rxnfc *cmd)
3748 {
3749         struct i40e_fdir_filter *rule, *parent;
3750         struct i40e_pf *pf = vsi->back;
3751         struct hlist_node *node2;
3752         int err = -EINVAL;
3753
3754         parent = NULL;
3755         rule = NULL;
3756
3757         hlist_for_each_entry_safe(rule, node2,
3758                                   &pf->fdir_filter_list, fdir_node) {
3759                 /* hash found, or no matching entry */
3760                 if (rule->fd_id >= sw_idx)
3761                         break;
3762                 parent = rule;
3763         }
3764
3765         /* if there is an old rule occupying our place remove it */
3766         if (rule && (rule->fd_id == sw_idx)) {
3767                 /* Remove this rule, since we're either deleting it, or
3768                  * replacing it.
3769                  */
3770                 err = i40e_add_del_fdir(vsi, rule, false);
3771                 hlist_del(&rule->fdir_node);
3772                 kfree(rule);
3773                 pf->fdir_pf_active_filters--;
3774         }
3775
3776         /* If we weren't given an input, this is a delete, so just return the
3777          * error code indicating if there was an entry at the requested slot
3778          */
3779         if (!input)
3780                 return err;
3781
3782         /* Otherwise, install the new rule as requested */
3783         INIT_HLIST_NODE(&input->fdir_node);
3784
3785         /* add filter to the list */
3786         if (parent)
3787                 hlist_add_behind(&input->fdir_node, &parent->fdir_node);
3788         else
3789                 hlist_add_head(&input->fdir_node,
3790                                &pf->fdir_filter_list);
3791
3792         /* update counts */
3793         pf->fdir_pf_active_filters++;
3794
3795         return 0;
3796 }
3797
3798 /**
3799  * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table
3800  * @pf: pointer to PF structure
3801  *
3802  * This function searches the list of filters and determines which FLX_PIT
3803  * entries are still required. It will prune any entries which are no longer
3804  * in use after the deletion.
3805  **/
3806 static void i40e_prune_flex_pit_list(struct i40e_pf *pf)
3807 {
3808         struct i40e_flex_pit *entry, *tmp;
3809         struct i40e_fdir_filter *rule;
3810
3811         /* First, we'll check the l3 table */
3812         list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) {
3813                 bool found = false;
3814
3815                 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) {
3816                         if (rule->flow_type != IP_USER_FLOW)
3817                                 continue;
3818                         if (rule->flex_filter &&
3819                             rule->flex_offset == entry->src_offset) {
3820                                 found = true;
3821                                 break;
3822                         }
3823                 }
3824
3825                 /* If we didn't find the filter, then we can prune this entry
3826                  * from the list.
3827                  */
3828                 if (!found) {
3829                         list_del(&entry->list);
3830                         kfree(entry);
3831                 }
3832         }
3833
3834         /* Followed by the L4 table */
3835         list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) {
3836                 bool found = false;
3837
3838                 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) {
3839                         /* Skip this filter if it's L3, since we already
3840                          * checked those in the above loop
3841                          */
3842                         if (rule->flow_type == IP_USER_FLOW)
3843                                 continue;
3844                         if (rule->flex_filter &&
3845                             rule->flex_offset == entry->src_offset) {
3846                                 found = true;
3847                                 break;
3848                         }
3849                 }
3850
3851                 /* If we didn't find the filter, then we can prune this entry
3852                  * from the list.
3853                  */
3854                 if (!found) {
3855                         list_del(&entry->list);
3856                         kfree(entry);
3857                 }
3858         }
3859 }
3860
3861 /**
3862  * i40e_del_fdir_entry - Deletes a Flow Director filter entry
3863  * @vsi: Pointer to the targeted VSI
3864  * @cmd: The command to get or set Rx flow classification rules
3865  *
3866  * The function removes a Flow Director filter entry from the
3867  * hlist of the corresponding PF
3868  *
3869  * Returns 0 on success
3870  */
3871 static int i40e_del_fdir_entry(struct i40e_vsi *vsi,
3872                                struct ethtool_rxnfc *cmd)
3873 {
3874         struct ethtool_rx_flow_spec *fsp =
3875                 (struct ethtool_rx_flow_spec *)&cmd->fs;
3876         struct i40e_pf *pf = vsi->back;
3877         int ret = 0;
3878
3879         if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
3880             test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
3881                 return -EBUSY;
3882
3883         if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))
3884                 return -EBUSY;
3885
3886         ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd);
3887
3888         i40e_prune_flex_pit_list(pf);
3889
3890         i40e_fdir_check_and_reenable(pf);
3891         return ret;
3892 }
3893
3894 /**
3895  * i40e_unused_pit_index - Find an unused PIT index for given list
3896  * @pf: the PF data structure
3897  *
3898  * Find the first unused flexible PIT index entry. We search both the L3 and
3899  * L4 flexible PIT lists so that the returned index is unique and unused by
3900  * either currently programmed L3 or L4 filters. We use a bit field as storage
3901  * to track which indexes are already used.
3902  **/
3903 static u8 i40e_unused_pit_index(struct i40e_pf *pf)
3904 {
3905         unsigned long available_index = 0xFF;
3906         struct i40e_flex_pit *entry;
3907
3908         /* We need to make sure that the new index isn't in use by either L3
3909          * or L4 filters so that IP_USER_FLOW filters can program both L3 and
3910          * L4 to use the same index.
3911          */
3912
3913         list_for_each_entry(entry, &pf->l4_flex_pit_list, list)
3914                 clear_bit(entry->pit_index, &available_index);
3915
3916         list_for_each_entry(entry, &pf->l3_flex_pit_list, list)
3917                 clear_bit(entry->pit_index, &available_index);
3918
3919         return find_first_bit(&available_index, 8);
3920 }
3921
3922 /**
3923  * i40e_find_flex_offset - Find an existing flex src_offset
3924  * @flex_pit_list: L3 or L4 flex PIT list
3925  * @src_offset: new src_offset to find
3926  *
3927  * Searches the flex_pit_list for an existing offset. If no offset is
3928  * currently programmed, then this will return an ERR_PTR if there is no space
3929  * to add a new offset, otherwise it returns NULL.
3930  **/
3931 static
3932 struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list,
3933                                             u16 src_offset)
3934 {
3935         struct i40e_flex_pit *entry;
3936         int size = 0;
3937
3938         /* Search for the src_offset first. If we find a matching entry
3939          * already programmed, we can simply re-use it.
3940          */
3941         list_for_each_entry(entry, flex_pit_list, list) {
3942                 size++;
3943                 if (entry->src_offset == src_offset)
3944                         return entry;
3945         }
3946
3947         /* If we haven't found an entry yet, then the provided src offset has
3948          * not yet been programmed. We will program the src offset later on,
3949          * but we need to indicate whether there is enough space to do so
3950          * here. We'll make use of ERR_PTR for this purpose.
3951          */
3952         if (size >= I40E_FLEX_PIT_TABLE_SIZE)
3953                 return ERR_PTR(-ENOSPC);
3954
3955         return NULL;
3956 }
3957
3958 /**
3959  * i40e_add_flex_offset - Add src_offset to flex PIT table list
3960  * @flex_pit_list: L3 or L4 flex PIT list
3961  * @src_offset: new src_offset to add
3962  * @pit_index: the PIT index to program
3963  *
3964  * This function programs the new src_offset to the list. It is expected that
3965  * i40e_find_flex_offset has already been tried and returned NULL, indicating
3966  * that this offset is not programmed, and that the list has enough space to
3967  * store another offset.
3968  *
3969  * Returns 0 on success, and negative value on error.
3970  **/
3971 static int i40e_add_flex_offset(struct list_head *flex_pit_list,
3972                                 u16 src_offset,
3973                                 u8 pit_index)
3974 {
3975         struct i40e_flex_pit *new_pit, *entry;
3976
3977         new_pit = kzalloc(sizeof(*entry), GFP_KERNEL);
3978         if (!new_pit)
3979                 return -ENOMEM;
3980
3981         new_pit->src_offset = src_offset;
3982         new_pit->pit_index = pit_index;
3983
3984         /* We need to insert this item such that the list is sorted by
3985          * src_offset in ascending order.
3986          */
3987         list_for_each_entry(entry, flex_pit_list, list) {
3988                 if (new_pit->src_offset < entry->src_offset) {
3989                         list_add_tail(&new_pit->list, &entry->list);
3990                         return 0;
3991                 }
3992
3993                 /* If we found an entry with our offset already programmed we
3994                  * can simply return here, after freeing the memory. However,
3995                  * if the pit_index does not match we need to report an error.
3996                  */
3997                 if (new_pit->src_offset == entry->src_offset) {
3998                         int err = 0;
3999
4000                         /* If the PIT index is not the same we can't re-use
4001                          * the entry, so we must report an error.
4002                          */
4003                         if (new_pit->pit_index != entry->pit_index)
4004                                 err = -EINVAL;
4005
4006                         kfree(new_pit);
4007                         return err;
4008                 }
4009         }
4010
4011         /* If we reached here, then we haven't yet added the item. This means
4012          * that we should add the item at the end of the list.
4013          */
4014         list_add_tail(&new_pit->list, flex_pit_list);
4015         return 0;
4016 }
4017
4018 /**
4019  * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table
4020  * @pf: Pointer to the PF structure
4021  * @flex_pit_list: list of flexible src offsets in use
4022  * @flex_pit_start: index to first entry for this section of the table
4023  *
4024  * In order to handle flexible data, the hardware uses a table of values
4025  * called the FLX_PIT table. This table is used to indicate which sections of
4026  * the input correspond to what PIT index values. Unfortunately, hardware is
4027  * very restrictive about programming this table. Entries must be ordered by
4028  * src_offset in ascending order, without duplicates. Additionally, unused
4029  * entries must be set to the unused index value, and must have valid size and
4030  * length according to the src_offset ordering.
4031  *
4032  * This function will reprogram the FLX_PIT register from a book-keeping
4033  * structure that we guarantee is already ordered correctly, and has no more
4034  * than 3 entries.
4035  *
4036  * To make things easier, we only support flexible values of one word length,
4037  * rather than allowing variable length flexible values.
4038  **/
4039 static void __i40e_reprogram_flex_pit(struct i40e_pf *pf,
4040                                       struct list_head *flex_pit_list,
4041                                       int flex_pit_start)
4042 {
4043         struct i40e_flex_pit *entry = NULL;
4044         u16 last_offset = 0;
4045         int i = 0, j = 0;
4046
4047         /* First, loop over the list of flex PIT entries, and reprogram the
4048          * registers.
4049          */
4050         list_for_each_entry(entry, flex_pit_list, list) {
4051                 /* We have to be careful when programming values for the
4052                  * largest SRC_OFFSET value. It is possible that adding
4053                  * additional empty values at the end would overflow the space
4054                  * for the SRC_OFFSET in the FLX_PIT register. To avoid this,
4055                  * we check here and add the empty values prior to adding the
4056                  * largest value.
4057                  *
4058                  * To determine this, we will use a loop from i+1 to 3, which
4059                  * will determine whether the unused entries would have valid
4060                  * SRC_OFFSET. Note that there cannot be extra entries past
4061                  * this value, because the only valid values would have been
4062                  * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not
4063                  * have been added to the list in the first place.
4064                  */
4065                 for (j = i + 1; j < 3; j++) {
4066                         u16 offset = entry->src_offset + j;
4067                         int index = flex_pit_start + i;
4068                         u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED,
4069                                                        1,
4070                                                        offset - 3);
4071
4072                         if (offset > I40E_MAX_FLEX_SRC_OFFSET) {
4073                                 i40e_write_rx_ctl(&pf->hw,
4074                                                   I40E_PRTQF_FLX_PIT(index),
4075                                                   value);
4076                                 i++;
4077                         }
4078                 }
4079
4080                 /* Now, we can program the actual value into the table */
4081                 i40e_write_rx_ctl(&pf->hw,
4082                                   I40E_PRTQF_FLX_PIT(flex_pit_start + i),
4083                                   I40E_FLEX_PREP_VAL(entry->pit_index + 50,
4084                                                      1,
4085                                                      entry->src_offset));
4086                 i++;
4087         }
4088
4089         /* In order to program the last entries in the table, we need to
4090          * determine the valid offset. If the list is empty, we'll just start
4091          * with 0. Otherwise, we'll start with the last item offset and add 1.
4092          * This ensures that all entries have valid sizes. If we don't do this
4093          * correctly, the hardware will disable flexible field parsing.
4094          */
4095         if (!list_empty(flex_pit_list))
4096                 last_offset = list_prev_entry(entry, list)->src_offset + 1;
4097
4098         for (; i < 3; i++, last_offset++) {
4099                 i40e_write_rx_ctl(&pf->hw,
4100                                   I40E_PRTQF_FLX_PIT(flex_pit_start + i),
4101                                   I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED,
4102                                                      1,
4103                                                      last_offset));
4104         }
4105 }
4106
4107 /**
4108  * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change
4109  * @pf: pointer to the PF structure
4110  *
4111  * This function reprograms both the L3 and L4 FLX_PIT tables. See the
4112  * internal helper function for implementation details.
4113  **/
4114 static void i40e_reprogram_flex_pit(struct i40e_pf *pf)
4115 {
4116         __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list,
4117                                   I40E_FLEX_PIT_IDX_START_L3);
4118
4119         __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list,
4120                                   I40E_FLEX_PIT_IDX_START_L4);
4121
4122         /* We also need to program the L3 and L4 GLQF ORT register */
4123         i40e_write_rx_ctl(&pf->hw,
4124                           I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX),
4125                           I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3,
4126                                             3, 1));
4127
4128         i40e_write_rx_ctl(&pf->hw,
4129                           I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX),
4130                           I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4,
4131                                             3, 1));
4132 }
4133
4134 /**
4135  * i40e_flow_str - Converts a flow_type into a human readable string
4136  * @fsp: the flow specification
4137  *
4138  * Currently only flow types we support are included here, and the string
4139  * value attempts to match what ethtool would use to configure this flow type.
4140  **/
4141 static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp)
4142 {
4143         switch (fsp->flow_type & ~FLOW_EXT) {
4144         case TCP_V4_FLOW:
4145                 return "tcp4";
4146         case UDP_V4_FLOW:
4147                 return "udp4";
4148         case SCTP_V4_FLOW:
4149                 return "sctp4";
4150         case IP_USER_FLOW:
4151                 return "ip4";
4152         case TCP_V6_FLOW:
4153                 return "tcp6";
4154         case UDP_V6_FLOW:
4155                 return "udp6";
4156         case SCTP_V6_FLOW:
4157                 return "sctp6";
4158         case IPV6_USER_FLOW:
4159                 return "ip6";
4160         default:
4161                 return "unknown";
4162         }
4163 }
4164
4165 /**
4166  * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index
4167  * @pit_index: PIT index to convert
4168  *
4169  * Returns the mask for a given PIT index. Will return 0 if the pit_index is
4170  * of range.
4171  **/
4172 static u64 i40e_pit_index_to_mask(int pit_index)
4173 {
4174         switch (pit_index) {
4175         case 0:
4176                 return I40E_FLEX_50_MASK;
4177         case 1:
4178                 return I40E_FLEX_51_MASK;
4179         case 2:
4180                 return I40E_FLEX_52_MASK;
4181         case 3:
4182                 return I40E_FLEX_53_MASK;
4183         case 4:
4184                 return I40E_FLEX_54_MASK;
4185         case 5:
4186                 return I40E_FLEX_55_MASK;
4187         case 6:
4188                 return I40E_FLEX_56_MASK;
4189         case 7:
4190                 return I40E_FLEX_57_MASK;
4191         default:
4192                 return 0;
4193         }
4194 }
4195
4196 /**
4197  * i40e_print_input_set - Show changes between two input sets
4198  * @vsi: the vsi being configured
4199  * @old: the old input set
4200  * @new: the new input set
4201  *
4202  * Print the difference between old and new input sets by showing which series
4203  * of words are toggled on or off. Only displays the bits we actually support
4204  * changing.
4205  **/
4206 static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new)
4207 {
4208         struct i40e_pf *pf = vsi->back;
4209         bool old_value, new_value;
4210         int i;
4211
4212         old_value = !!(old & I40E_L3_SRC_MASK);
4213         new_value = !!(new & I40E_L3_SRC_MASK);
4214         if (old_value != new_value)
4215                 netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n",
4216                            old_value ? "ON" : "OFF",
4217                            new_value ? "ON" : "OFF");
4218
4219         old_value = !!(old & I40E_L3_DST_MASK);
4220         new_value = !!(new & I40E_L3_DST_MASK);
4221         if (old_value != new_value)
4222                 netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n",
4223                            old_value ? "ON" : "OFF",
4224                            new_value ? "ON" : "OFF");
4225
4226         old_value = !!(old & I40E_L4_SRC_MASK);
4227         new_value = !!(new & I40E_L4_SRC_MASK);
4228         if (old_value != new_value)
4229                 netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n",
4230                            old_value ? "ON" : "OFF",
4231                            new_value ? "ON" : "OFF");
4232
4233         old_value = !!(old & I40E_L4_DST_MASK);
4234         new_value = !!(new & I40E_L4_DST_MASK);
4235         if (old_value != new_value)
4236                 netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n",
4237                            old_value ? "ON" : "OFF",
4238                            new_value ? "ON" : "OFF");
4239
4240         old_value = !!(old & I40E_VERIFY_TAG_MASK);
4241         new_value = !!(new & I40E_VERIFY_TAG_MASK);
4242         if (old_value != new_value)
4243                 netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n",
4244                            old_value ? "ON" : "OFF",
4245                            new_value ? "ON" : "OFF");
4246
4247         /* Show change of flexible filter entries */
4248         for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) {
4249                 u64 flex_mask = i40e_pit_index_to_mask(i);
4250
4251                 old_value = !!(old & flex_mask);
4252                 new_value = !!(new & flex_mask);
4253                 if (old_value != new_value)
4254                         netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n",
4255                                    i,
4256                                    old_value ? "ON" : "OFF",
4257                                    new_value ? "ON" : "OFF");
4258         }
4259
4260         netif_info(pf, drv, vsi->netdev, "  Current input set: %0llx\n",
4261                    old);
4262         netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n",
4263                    new);
4264 }
4265
4266 /**
4267  * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid
4268  * @vsi: pointer to the targeted VSI
4269  * @fsp: pointer to Rx flow specification
4270  * @userdef: userdefined data from flow specification
4271  *
4272  * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support
4273  * for partial matches exists with a few limitations. First, hardware only
4274  * supports masking by word boundary (2 bytes) and not per individual bit.
4275  * Second, hardware is limited to using one mask for a flow type and cannot
4276  * use a separate mask for each filter.
4277  *
4278  * To support these limitations, if we already have a configured filter for
4279  * the specified type, this function enforces that new filters of the type
4280  * match the configured input set. Otherwise, if we do not have a filter of
4281  * the specified type, we allow the input set to be updated to match the
4282  * desired filter.
4283  *
4284  * To help ensure that administrators understand why filters weren't displayed
4285  * as supported, we print a diagnostic message displaying how the input set
4286  * would change and warning to delete the preexisting filters if required.
4287  *
4288  * Returns 0 on successful input set match, and a negative return code on
4289  * failure.
4290  **/
4291 static int i40e_check_fdir_input_set(struct i40e_vsi *vsi,
4292                                      struct ethtool_rx_flow_spec *fsp,
4293                                      struct i40e_rx_flow_userdef *userdef)
4294 {
4295         static const __be32 ipv6_full_mask[4] = {cpu_to_be32(0xffffffff),
4296                 cpu_to_be32(0xffffffff), cpu_to_be32(0xffffffff),
4297                 cpu_to_be32(0xffffffff)};
4298         struct ethtool_tcpip6_spec *tcp_ip6_spec;
4299         struct ethtool_usrip6_spec *usr_ip6_spec;
4300         struct ethtool_tcpip4_spec *tcp_ip4_spec;
4301         struct ethtool_usrip4_spec *usr_ip4_spec;
4302         struct i40e_pf *pf = vsi->back;
4303         u64 current_mask, new_mask;
4304         bool new_flex_offset = false;
4305         bool flex_l3 = false;
4306         u16 *fdir_filter_count;
4307         u16 index, src_offset = 0;
4308         u8 pit_index = 0;
4309         int err;
4310
4311         switch (fsp->flow_type & ~FLOW_EXT) {
4312         case SCTP_V4_FLOW:
4313                 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP;
4314                 fdir_filter_count = &pf->fd_sctp4_filter_cnt;
4315                 break;
4316         case TCP_V4_FLOW:
4317                 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
4318                 fdir_filter_count = &pf->fd_tcp4_filter_cnt;
4319                 break;
4320         case UDP_V4_FLOW:
4321                 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
4322                 fdir_filter_count = &pf->fd_udp4_filter_cnt;
4323                 break;
4324         case SCTP_V6_FLOW:
4325                 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP;
4326                 fdir_filter_count = &pf->fd_sctp6_filter_cnt;
4327                 break;
4328         case TCP_V6_FLOW:
4329                 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
4330                 fdir_filter_count = &pf->fd_tcp6_filter_cnt;
4331                 break;
4332         case UDP_V6_FLOW:
4333                 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
4334                 fdir_filter_count = &pf->fd_udp6_filter_cnt;
4335                 break;
4336         case IP_USER_FLOW:
4337                 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;
4338                 fdir_filter_count = &pf->fd_ip4_filter_cnt;
4339                 flex_l3 = true;
4340                 break;
4341         case IPV6_USER_FLOW:
4342                 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER;
4343                 fdir_filter_count = &pf->fd_ip6_filter_cnt;
4344                 flex_l3 = true;
4345                 break;
4346         default:
4347                 return -EOPNOTSUPP;
4348         }
4349
4350         /* Read the current input set from register memory. */
4351         current_mask = i40e_read_fd_input_set(pf, index);
4352         new_mask = current_mask;
4353
4354         /* Determine, if any, the required changes to the input set in order
4355          * to support the provided mask.
4356          *
4357          * Hardware only supports masking at word (2 byte) granularity and does
4358          * not support full bitwise masking. This implementation simplifies
4359          * even further and only supports fully enabled or fully disabled
4360          * masks for each field, even though we could split the ip4src and
4361          * ip4dst fields.
4362          */
4363         switch (fsp->flow_type & ~FLOW_EXT) {
4364         case SCTP_V4_FLOW:
4365                 new_mask &= ~I40E_VERIFY_TAG_MASK;
4366                 fallthrough;
4367         case TCP_V4_FLOW:
4368         case UDP_V4_FLOW:
4369                 tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec;
4370
4371                 /* IPv4 source address */
4372                 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF))
4373                         new_mask |= I40E_L3_SRC_MASK;
4374                 else if (!tcp_ip4_spec->ip4src)
4375                         new_mask &= ~I40E_L3_SRC_MASK;
4376                 else
4377                         return -EOPNOTSUPP;
4378
4379                 /* IPv4 destination address */
4380                 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF))
4381                         new_mask |= I40E_L3_DST_MASK;
4382                 else if (!tcp_ip4_spec->ip4dst)
4383                         new_mask &= ~I40E_L3_DST_MASK;
4384                 else
4385                         return -EOPNOTSUPP;
4386
4387                 /* L4 source port */
4388                 if (tcp_ip4_spec->psrc == htons(0xFFFF))
4389                         new_mask |= I40E_L4_SRC_MASK;
4390                 else if (!tcp_ip4_spec->psrc)
4391                         new_mask &= ~I40E_L4_SRC_MASK;
4392                 else
4393                         return -EOPNOTSUPP;
4394
4395                 /* L4 destination port */
4396                 if (tcp_ip4_spec->pdst == htons(0xFFFF))
4397                         new_mask |= I40E_L4_DST_MASK;
4398                 else if (!tcp_ip4_spec->pdst)
4399                         new_mask &= ~I40E_L4_DST_MASK;
4400                 else
4401                         return -EOPNOTSUPP;
4402
4403                 /* Filtering on Type of Service is not supported. */
4404                 if (tcp_ip4_spec->tos)
4405                         return -EOPNOTSUPP;
4406
4407                 break;
4408         case SCTP_V6_FLOW:
4409                 new_mask &= ~I40E_VERIFY_TAG_MASK;
4410                 fallthrough;
4411         case TCP_V6_FLOW:
4412         case UDP_V6_FLOW:
4413                 tcp_ip6_spec = &fsp->m_u.tcp_ip6_spec;
4414
4415                 /* Check if user provided IPv6 source address. */
4416                 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6src,
4417                                     (struct in6_addr *)&ipv6_full_mask))
4418                         new_mask |= I40E_L3_V6_SRC_MASK;
4419                 else if (ipv6_addr_any((struct in6_addr *)
4420                                        &tcp_ip6_spec->ip6src))
4421                         new_mask &= ~I40E_L3_V6_SRC_MASK;
4422                 else
4423                         return -EOPNOTSUPP;
4424
4425                 /* Check if user provided destination address. */
4426                 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6dst,
4427                                     (struct in6_addr *)&ipv6_full_mask))
4428                         new_mask |= I40E_L3_V6_DST_MASK;
4429                 else if (ipv6_addr_any((struct in6_addr *)
4430                                        &tcp_ip6_spec->ip6dst))
4431                         new_mask &= ~I40E_L3_V6_DST_MASK;
4432                 else
4433                         return -EOPNOTSUPP;
4434
4435                 /* L4 source port */
4436                 if (tcp_ip6_spec->psrc == htons(0xFFFF))
4437                         new_mask |= I40E_L4_SRC_MASK;
4438                 else if (!tcp_ip6_spec->psrc)
4439                         new_mask &= ~I40E_L4_SRC_MASK;
4440                 else
4441                         return -EOPNOTSUPP;
4442
4443                 /* L4 destination port */
4444                 if (tcp_ip6_spec->pdst == htons(0xFFFF))
4445                         new_mask |= I40E_L4_DST_MASK;
4446                 else if (!tcp_ip6_spec->pdst)
4447                         new_mask &= ~I40E_L4_DST_MASK;
4448                 else
4449                         return -EOPNOTSUPP;
4450
4451                 /* Filtering on Traffic Classes is not supported. */
4452                 if (tcp_ip6_spec->tclass)
4453                         return -EOPNOTSUPP;
4454                 break;
4455         case IP_USER_FLOW:
4456                 usr_ip4_spec = &fsp->m_u.usr_ip4_spec;
4457
4458                 /* IPv4 source address */
4459                 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF))
4460                         new_mask |= I40E_L3_SRC_MASK;
4461                 else if (!usr_ip4_spec->ip4src)
4462                         new_mask &= ~I40E_L3_SRC_MASK;
4463                 else
4464                         return -EOPNOTSUPP;
4465
4466                 /* IPv4 destination address */
4467                 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF))
4468                         new_mask |= I40E_L3_DST_MASK;
4469                 else if (!usr_ip4_spec->ip4dst)
4470                         new_mask &= ~I40E_L3_DST_MASK;
4471                 else
4472                         return -EOPNOTSUPP;
4473
4474                 /* First 4 bytes of L4 header */
4475                 if (usr_ip4_spec->l4_4_bytes)
4476                         return -EOPNOTSUPP;
4477
4478                 /* Filtering on Type of Service is not supported. */
4479                 if (usr_ip4_spec->tos)
4480                         return -EOPNOTSUPP;
4481
4482                 /* Filtering on IP version is not supported */
4483                 if (usr_ip4_spec->ip_ver)
4484                         return -EINVAL;
4485
4486                 /* Filtering on L4 protocol is not supported */
4487                 if (usr_ip4_spec->proto)
4488                         return -EINVAL;
4489
4490                 break;
4491         case IPV6_USER_FLOW:
4492                 usr_ip6_spec = &fsp->m_u.usr_ip6_spec;
4493
4494                 /* Check if user provided IPv6 source address. */
4495                 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6src,
4496                                     (struct in6_addr *)&ipv6_full_mask))
4497                         new_mask |= I40E_L3_V6_SRC_MASK;
4498                 else if (ipv6_addr_any((struct in6_addr *)
4499                                        &usr_ip6_spec->ip6src))
4500                         new_mask &= ~I40E_L3_V6_SRC_MASK;
4501                 else
4502                         return -EOPNOTSUPP;
4503
4504                 /* Check if user provided destination address. */
4505                 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6dst,
4506                                     (struct in6_addr *)&ipv6_full_mask))
4507                         new_mask |= I40E_L3_V6_DST_MASK;
4508                 else if (ipv6_addr_any((struct in6_addr *)
4509                                        &usr_ip6_spec->ip6dst))
4510                         new_mask &= ~I40E_L3_V6_DST_MASK;
4511                 else
4512                         return -EOPNOTSUPP;
4513
4514                 if (usr_ip6_spec->l4_4_bytes)
4515                         return -EOPNOTSUPP;
4516
4517                 /* Filtering on Traffic class is not supported. */
4518                 if (usr_ip6_spec->tclass)
4519                         return -EOPNOTSUPP;
4520
4521                 /* Filtering on L4 protocol is not supported */
4522                 if (usr_ip6_spec->l4_proto)
4523                         return -EINVAL;
4524
4525                 break;
4526         default:
4527                 return -EOPNOTSUPP;
4528         }
4529
4530         if (fsp->flow_type & FLOW_EXT) {
4531                 /* Allow only 802.1Q and no etype defined, as
4532                  * later it's modified to 0x8100
4533                  */
4534                 if (fsp->h_ext.vlan_etype != htons(ETH_P_8021Q) &&
4535                     fsp->h_ext.vlan_etype != 0)
4536                         return -EOPNOTSUPP;
4537                 if (fsp->m_ext.vlan_tci == htons(0xFFFF))
4538                         new_mask |= I40E_VLAN_SRC_MASK;
4539                 else
4540                         new_mask &= ~I40E_VLAN_SRC_MASK;
4541         }
4542
4543         /* First, clear all flexible filter entries */
4544         new_mask &= ~I40E_FLEX_INPUT_MASK;
4545
4546         /* If we have a flexible filter, try to add this offset to the correct
4547          * flexible filter PIT list. Once finished, we can update the mask.
4548          * If the src_offset changed, we will get a new mask value which will
4549          * trigger an input set change.
4550          */
4551         if (userdef->flex_filter) {
4552                 struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL;
4553
4554                 /* Flexible offset must be even, since the flexible payload
4555                  * must be aligned on 2-byte boundary.
4556                  */
4557                 if (userdef->flex_offset & 0x1) {
4558                         dev_warn(&pf->pdev->dev,
4559                                  "Flexible data offset must be 2-byte aligned\n");
4560                         return -EINVAL;
4561                 }
4562
4563                 src_offset = userdef->flex_offset >> 1;
4564
4565                 /* FLX_PIT source offset value is only so large */
4566                 if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) {
4567                         dev_warn(&pf->pdev->dev,
4568                                  "Flexible data must reside within first 64 bytes of the packet payload\n");
4569                         return -EINVAL;
4570                 }
4571
4572                 /* See if this offset has already been programmed. If we get
4573                  * an ERR_PTR, then the filter is not safe to add. Otherwise,
4574                  * if we get a NULL pointer, this means we will need to add
4575                  * the offset.
4576                  */
4577                 flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list,
4578                                                  src_offset);
4579                 if (IS_ERR(flex_pit))
4580                         return PTR_ERR(flex_pit);
4581
4582                 /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown)
4583                  * packet types, and thus we need to program both L3 and L4
4584                  * flexible values. These must have identical flexible index,
4585                  * as otherwise we can't correctly program the input set. So
4586                  * we'll find both an L3 and L4 index and make sure they are
4587                  * the same.
4588                  */
4589                 if (flex_l3) {
4590                         l3_flex_pit =
4591                                 i40e_find_flex_offset(&pf->l3_flex_pit_list,
4592                                                       src_offset);
4593                         if (IS_ERR(l3_flex_pit))
4594                                 return PTR_ERR(l3_flex_pit);
4595
4596                         if (flex_pit) {
4597                                 /* If we already had a matching L4 entry, we
4598                                  * need to make sure that the L3 entry we
4599                                  * obtained uses the same index.
4600                                  */
4601                                 if (l3_flex_pit) {
4602                                         if (l3_flex_pit->pit_index !=
4603                                             flex_pit->pit_index) {
4604                                                 return -EINVAL;
4605                                         }
4606                                 } else {
4607                                         new_flex_offset = true;
4608                                 }
4609                         } else {
4610                                 flex_pit = l3_flex_pit;
4611                         }
4612                 }
4613
4614                 /* If we didn't find an existing flex offset, we need to
4615                  * program a new one. However, we don't immediately program it
4616                  * here because we will wait to program until after we check
4617                  * that it is safe to change the input set.
4618                  */
4619                 if (!flex_pit) {
4620                         new_flex_offset = true;
4621                         pit_index = i40e_unused_pit_index(pf);
4622                 } else {
4623                         pit_index = flex_pit->pit_index;
4624                 }
4625
4626                 /* Update the mask with the new offset */
4627                 new_mask |= i40e_pit_index_to_mask(pit_index);
4628         }
4629
4630         /* If the mask and flexible filter offsets for this filter match the
4631          * currently programmed values we don't need any input set change, so
4632          * this filter is safe to install.
4633          */
4634         if (new_mask == current_mask && !new_flex_offset)
4635                 return 0;
4636
4637         netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n",
4638                    i40e_flow_str(fsp));
4639         i40e_print_input_set(vsi, current_mask, new_mask);
4640         if (new_flex_offset) {
4641                 netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d",
4642                            pit_index, src_offset);
4643         }
4644
4645         /* Hardware input sets are global across multiple ports, so even the
4646          * main port cannot change them when in MFP mode as this would impact
4647          * any filters on the other ports.
4648          */
4649         if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) {
4650                 netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n");
4651                 return -EOPNOTSUPP;
4652         }
4653
4654         /* This filter requires us to update the input set. However, hardware
4655          * only supports one input set per flow type, and does not support
4656          * separate masks for each filter. This means that we can only support
4657          * a single mask for all filters of a specific type.
4658          *
4659          * If we have preexisting filters, they obviously depend on the
4660          * current programmed input set. Display a diagnostic message in this
4661          * case explaining why the filter could not be accepted.
4662          */
4663         if (*fdir_filter_count) {
4664                 netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n",
4665                           i40e_flow_str(fsp),
4666                           *fdir_filter_count);
4667                 return -EOPNOTSUPP;
4668         }
4669
4670         i40e_write_fd_input_set(pf, index, new_mask);
4671
4672         /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented
4673          * frames. If we're programming the input set for IPv4/Other, we also
4674          * need to program the IPv4/Fragmented input set. Since we don't have
4675          * separate support, we'll always assume and enforce that the two flow
4676          * types must have matching input sets.
4677          */
4678         if (index == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER)
4679                 i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4,
4680                                         new_mask);
4681
4682         /* Add the new offset and update table, if necessary */
4683         if (new_flex_offset) {
4684                 err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset,
4685                                            pit_index);
4686                 if (err)
4687                         return err;
4688
4689                 if (flex_l3) {
4690                         err = i40e_add_flex_offset(&pf->l3_flex_pit_list,
4691                                                    src_offset,
4692                                                    pit_index);
4693                         if (err)
4694                                 return err;
4695                 }
4696
4697                 i40e_reprogram_flex_pit(pf);
4698         }
4699
4700         return 0;
4701 }
4702
4703 /**
4704  * i40e_match_fdir_filter - Return true of two filters match
4705  * @a: pointer to filter struct
4706  * @b: pointer to filter struct
4707  *
4708  * Returns true if the two filters match exactly the same criteria. I.e. they
4709  * match the same flow type and have the same parameters. We don't need to
4710  * check any input-set since all filters of the same flow type must use the
4711  * same input set.
4712  **/
4713 static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a,
4714                                    struct i40e_fdir_filter *b)
4715 {
4716         /* The filters do not much if any of these criteria differ. */
4717         if (a->dst_ip != b->dst_ip ||
4718             a->src_ip != b->src_ip ||
4719             a->dst_port != b->dst_port ||
4720             a->src_port != b->src_port ||
4721             a->flow_type != b->flow_type ||
4722             a->ipl4_proto != b->ipl4_proto ||
4723             a->vlan_tag != b->vlan_tag ||
4724             a->vlan_etype != b->vlan_etype)
4725                 return false;
4726
4727         return true;
4728 }
4729
4730 /**
4731  * i40e_disallow_matching_filters - Check that new filters differ
4732  * @vsi: pointer to the targeted VSI
4733  * @input: new filter to check
4734  *
4735  * Due to hardware limitations, it is not possible for two filters that match
4736  * similar criteria to be programmed at the same time. This is true for a few
4737  * reasons:
4738  *
4739  * (a) all filters matching a particular flow type must use the same input
4740  * set, that is they must match the same criteria.
4741  * (b) different flow types will never match the same packet, as the flow type
4742  * is decided by hardware before checking which rules apply.
4743  * (c) hardware has no way to distinguish which order filters apply in.
4744  *
4745  * Due to this, we can't really support using the location data to order
4746  * filters in the hardware parsing. It is technically possible for the user to
4747  * request two filters matching the same criteria but which select different
4748  * queues. In this case, rather than keep both filters in the list, we reject
4749  * the 2nd filter when the user requests adding it.
4750  *
4751  * This avoids needing to track location for programming the filter to
4752  * hardware, and ensures that we avoid some strange scenarios involving
4753  * deleting filters which match the same criteria.
4754  **/
4755 static int i40e_disallow_matching_filters(struct i40e_vsi *vsi,
4756                                           struct i40e_fdir_filter *input)
4757 {
4758         struct i40e_pf *pf = vsi->back;
4759         struct i40e_fdir_filter *rule;
4760         struct hlist_node *node2;
4761
4762         /* Loop through every filter, and check that it doesn't match */
4763         hlist_for_each_entry_safe(rule, node2,
4764                                   &pf->fdir_filter_list, fdir_node) {
4765                 /* Don't check the filters match if they share the same fd_id,
4766                  * since the new filter is actually just updating the target
4767                  * of the old filter.
4768                  */
4769                 if (rule->fd_id == input->fd_id)
4770                         continue;
4771
4772                 /* If any filters match, then print a warning message to the
4773                  * kernel message buffer and bail out.
4774                  */
4775                 if (i40e_match_fdir_filter(rule, input)) {
4776                         dev_warn(&pf->pdev->dev,
4777                                  "Existing user defined filter %d already matches this flow.\n",
4778                                  rule->fd_id);
4779                         return -EINVAL;
4780                 }
4781         }
4782
4783         return 0;
4784 }
4785
4786 /**
4787  * i40e_add_fdir_ethtool - Add/Remove Flow Director filters
4788  * @vsi: pointer to the targeted VSI
4789  * @cmd: command to get or set RX flow classification rules
4790  *
4791  * Add Flow Director filters for a specific flow spec based on their
4792  * protocol.  Returns 0 if the filters were successfully added.
4793  **/
4794 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
4795                                  struct ethtool_rxnfc *cmd)
4796 {
4797         struct i40e_rx_flow_userdef userdef;
4798         struct ethtool_rx_flow_spec *fsp;
4799         struct i40e_fdir_filter *input;
4800         u16 dest_vsi = 0, q_index = 0;
4801         struct i40e_pf *pf;
4802         int ret = -EINVAL;
4803         u8 dest_ctl;
4804
4805         if (!vsi)
4806                 return -EINVAL;
4807         pf = vsi->back;
4808
4809         if (!test_bit(I40E_FLAG_FD_SB_ENA, pf->flags))
4810                 return -EOPNOTSUPP;
4811
4812         if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state))
4813                 return -ENOSPC;
4814
4815         if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
4816             test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
4817                 return -EBUSY;
4818
4819         if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))
4820                 return -EBUSY;
4821
4822         fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
4823
4824         /* Parse the user-defined field */
4825         if (i40e_parse_rx_flow_user_data(fsp, &userdef))
4826                 return -EINVAL;
4827
4828         /* Extended MAC field is not supported */
4829         if (fsp->flow_type & FLOW_MAC_EXT)
4830                 return -EINVAL;
4831
4832         ret = i40e_check_fdir_input_set(vsi, fsp, &userdef);
4833         if (ret)
4834                 return ret;
4835
4836         if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort +
4837                               pf->hw.func_caps.fd_filters_guaranteed)) {
4838                 return -EINVAL;
4839         }
4840
4841         /* ring_cookie is either the drop index, or is a mask of the queue
4842          * index and VF id we wish to target.
4843          */
4844         if (fsp->ring_cookie == RX_CLS_FLOW_DISC) {
4845                 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
4846         } else {
4847                 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie);
4848                 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie);
4849
4850                 if (!vf) {
4851                         if (ring >= vsi->num_queue_pairs)
4852                                 return -EINVAL;
4853                         dest_vsi = vsi->id;
4854                 } else {
4855                         /* VFs are zero-indexed, so we subtract one here */
4856                         vf--;
4857
4858                         if (vf >= pf->num_alloc_vfs)
4859                                 return -EINVAL;
4860                         if (ring >= pf->vf[vf].num_queue_pairs)
4861                                 return -EINVAL;
4862                         dest_vsi = pf->vf[vf].lan_vsi_id;
4863                 }
4864                 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
4865                 q_index = ring;
4866         }
4867
4868         input = kzalloc(sizeof(*input), GFP_KERNEL);
4869
4870         if (!input)
4871                 return -ENOMEM;
4872
4873         input->fd_id = fsp->location;
4874         input->q_index = q_index;
4875         input->dest_vsi = dest_vsi;
4876         input->dest_ctl = dest_ctl;
4877         input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID;
4878         input->cnt_index  = I40E_FD_SB_STAT_IDX(pf->hw.pf_id);
4879         input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src;
4880         input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
4881         input->flow_type = fsp->flow_type & ~FLOW_EXT;
4882
4883         input->vlan_etype = fsp->h_ext.vlan_etype;
4884         if (!fsp->m_ext.vlan_etype && fsp->h_ext.vlan_tci)
4885                 input->vlan_etype = cpu_to_be16(ETH_P_8021Q);
4886         if (fsp->m_ext.vlan_tci && input->vlan_etype)
4887                 input->vlan_tag = fsp->h_ext.vlan_tci;
4888         if (input->flow_type == IPV6_USER_FLOW ||
4889             input->flow_type == UDP_V6_FLOW ||
4890             input->flow_type == TCP_V6_FLOW ||
4891             input->flow_type == SCTP_V6_FLOW) {
4892                 /* Reverse the src and dest notion, since the HW expects them
4893                  * to be from Tx perspective where as the input from user is
4894                  * from Rx filter view.
4895                  */
4896                 input->ipl4_proto = fsp->h_u.usr_ip6_spec.l4_proto;
4897                 input->dst_port = fsp->h_u.tcp_ip6_spec.psrc;
4898                 input->src_port = fsp->h_u.tcp_ip6_spec.pdst;
4899                 memcpy(input->dst_ip6, fsp->h_u.ah_ip6_spec.ip6src,
4900                        sizeof(__be32) * 4);
4901                 memcpy(input->src_ip6, fsp->h_u.ah_ip6_spec.ip6dst,
4902                        sizeof(__be32) * 4);
4903         } else {
4904                 /* Reverse the src and dest notion, since the HW expects them
4905                  * to be from Tx perspective where as the input from user is
4906                  * from Rx filter view.
4907                  */
4908                 input->ipl4_proto = fsp->h_u.usr_ip4_spec.proto;
4909                 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc;
4910                 input->src_port = fsp->h_u.tcp_ip4_spec.pdst;
4911                 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src;
4912                 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
4913         }
4914
4915         if (userdef.flex_filter) {
4916                 input->flex_filter = true;
4917                 input->flex_word = cpu_to_be16(userdef.flex_word);
4918                 input->flex_offset = userdef.flex_offset;
4919         }
4920
4921         /* Avoid programming two filters with identical match criteria. */
4922         ret = i40e_disallow_matching_filters(vsi, input);
4923         if (ret)
4924                 goto free_filter_memory;
4925
4926         /* Add the input filter to the fdir_input_list, possibly replacing
4927          * a previous filter. Do not free the input structure after adding it
4928          * to the list as this would cause a use-after-free bug.
4929          */
4930         i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL);
4931         ret = i40e_add_del_fdir(vsi, input, true);
4932         if (ret)
4933                 goto remove_sw_rule;
4934         return 0;
4935
4936 remove_sw_rule:
4937         hlist_del(&input->fdir_node);
4938         pf->fdir_pf_active_filters--;
4939 free_filter_memory:
4940         kfree(input);
4941         return ret;
4942 }
4943
4944 /**
4945  * i40e_set_rxnfc - command to set RX flow classification rules
4946  * @netdev: network interface device structure
4947  * @cmd: ethtool rxnfc command
4948  *
4949  * Returns Success if the command is supported.
4950  **/
4951 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
4952 {
4953         struct i40e_netdev_priv *np = netdev_priv(netdev);
4954         struct i40e_vsi *vsi = np->vsi;
4955         struct i40e_pf *pf = vsi->back;
4956         int ret = -EOPNOTSUPP;
4957
4958         switch (cmd->cmd) {
4959         case ETHTOOL_SRXFH:
4960                 ret = i40e_set_rss_hash_opt(pf, cmd);
4961                 break;
4962         case ETHTOOL_SRXCLSRLINS:
4963                 ret = i40e_add_fdir_ethtool(vsi, cmd);
4964                 break;
4965         case ETHTOOL_SRXCLSRLDEL:
4966                 ret = i40e_del_fdir_entry(vsi, cmd);
4967                 break;
4968         default:
4969                 break;
4970         }
4971
4972         return ret;
4973 }
4974
4975 /**
4976  * i40e_max_channels - get Max number of combined channels supported
4977  * @vsi: vsi pointer
4978  **/
4979 static unsigned int i40e_max_channels(struct i40e_vsi *vsi)
4980 {
4981         /* TODO: This code assumes DCB and FD is disabled for now. */
4982         return vsi->alloc_queue_pairs;
4983 }
4984
4985 /**
4986  * i40e_get_channels - Get the current channels enabled and max supported etc.
4987  * @dev: network interface device structure
4988  * @ch: ethtool channels structure
4989  *
4990  * We don't support separate tx and rx queues as channels. The other count
4991  * represents how many queues are being used for control. max_combined counts
4992  * how many queue pairs we can support. They may not be mapped 1 to 1 with
4993  * q_vectors since we support a lot more queue pairs than q_vectors.
4994  **/
4995 static void i40e_get_channels(struct net_device *dev,
4996                               struct ethtool_channels *ch)
4997 {
4998         struct i40e_netdev_priv *np = netdev_priv(dev);
4999         struct i40e_vsi *vsi = np->vsi;
5000         struct i40e_pf *pf = vsi->back;
5001
5002         /* report maximum channels */
5003         ch->max_combined = i40e_max_channels(vsi);
5004
5005         /* report info for other vector */
5006         ch->other_count = test_bit(I40E_FLAG_FD_SB_ENA, pf->flags) ? 1 : 0;
5007         ch->max_other = ch->other_count;
5008
5009         /* Note: This code assumes DCB is disabled for now. */
5010         ch->combined_count = vsi->num_queue_pairs;
5011 }
5012
5013 /**
5014  * i40e_set_channels - Set the new channels count.
5015  * @dev: network interface device structure
5016  * @ch: ethtool channels structure
5017  *
5018  * The new channels count may not be the same as requested by the user
5019  * since it gets rounded down to a power of 2 value.
5020  **/
5021 static int i40e_set_channels(struct net_device *dev,
5022                              struct ethtool_channels *ch)
5023 {
5024         const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
5025         struct i40e_netdev_priv *np = netdev_priv(dev);
5026         unsigned int count = ch->combined_count;
5027         struct i40e_vsi *vsi = np->vsi;
5028         struct i40e_pf *pf = vsi->back;
5029         struct i40e_fdir_filter *rule;
5030         struct hlist_node *node2;
5031         int new_count;
5032         int err = 0;
5033
5034         /* We do not support setting channels for any other VSI at present */
5035         if (vsi->type != I40E_VSI_MAIN)
5036                 return -EINVAL;
5037
5038         /* We do not support setting channels via ethtool when TCs are
5039          * configured through mqprio
5040          */
5041         if (i40e_is_tc_mqprio_enabled(pf))
5042                 return -EINVAL;
5043
5044         /* verify they are not requesting separate vectors */
5045         if (!count || ch->rx_count || ch->tx_count)
5046                 return -EINVAL;
5047
5048         /* verify other_count has not changed */
5049         if (ch->other_count != (test_bit(I40E_FLAG_FD_SB_ENA, pf->flags) ? 1 : 0))
5050                 return -EINVAL;
5051
5052         /* verify the number of channels does not exceed hardware limits */
5053         if (count > i40e_max_channels(vsi))
5054                 return -EINVAL;
5055
5056         /* verify that the number of channels does not invalidate any current
5057          * flow director rules
5058          */
5059         hlist_for_each_entry_safe(rule, node2,
5060                                   &pf->fdir_filter_list, fdir_node) {
5061                 if (rule->dest_ctl != drop && count <= rule->q_index) {
5062                         dev_warn(&pf->pdev->dev,
5063                                  "Existing user defined filter %d assigns flow to queue %d\n",
5064                                  rule->fd_id, rule->q_index);
5065                         err = -EINVAL;
5066                 }
5067         }
5068
5069         if (err) {
5070                 dev_err(&pf->pdev->dev,
5071                         "Existing filter rules must be deleted to reduce combined channel count to %d\n",
5072                         count);
5073                 return err;
5074         }
5075
5076         /* update feature limits from largest to smallest supported values */
5077         /* TODO: Flow director limit, DCB etc */
5078
5079         /* use rss_reconfig to rebuild with new queue count and update traffic
5080          * class queue mapping
5081          */
5082         new_count = i40e_reconfig_rss_queues(pf, count);
5083         if (new_count > 0)
5084                 return 0;
5085         else
5086                 return -EINVAL;
5087 }
5088
5089 /**
5090  * i40e_get_rxfh_key_size - get the RSS hash key size
5091  * @netdev: network interface device structure
5092  *
5093  * Returns the table size.
5094  **/
5095 static u32 i40e_get_rxfh_key_size(struct net_device *netdev)
5096 {
5097         return I40E_HKEY_ARRAY_SIZE;
5098 }
5099
5100 /**
5101  * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size
5102  * @netdev: network interface device structure
5103  *
5104  * Returns the table size.
5105  **/
5106 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev)
5107 {
5108         return I40E_HLUT_ARRAY_SIZE;
5109 }
5110
5111 /**
5112  * i40e_get_rxfh - get the rx flow hash indirection table
5113  * @netdev: network interface device structure
5114  * @rxfh: pointer to param struct (indir, key, hfunc)
5115  *
5116  * Reads the indirection table directly from the hardware. Returns 0 on
5117  * success.
5118  **/
5119 static int i40e_get_rxfh(struct net_device *netdev,
5120                          struct ethtool_rxfh_param *rxfh)
5121 {
5122         struct i40e_netdev_priv *np = netdev_priv(netdev);
5123         struct i40e_vsi *vsi = np->vsi;
5124         u8 *lut, *seed = NULL;
5125         int ret;
5126         u16 i;
5127
5128         rxfh->hfunc = ETH_RSS_HASH_TOP;
5129
5130         if (!rxfh->indir)
5131                 return 0;
5132
5133         seed = rxfh->key;
5134         lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
5135         if (!lut)
5136                 return -ENOMEM;
5137         ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE);
5138         if (ret)
5139                 goto out;
5140         for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
5141                 rxfh->indir[i] = (u32)(lut[i]);
5142
5143 out:
5144         kfree(lut);
5145
5146         return ret;
5147 }
5148
5149 /**
5150  * i40e_set_rxfh - set the rx flow hash indirection table
5151  * @netdev: network interface device structure
5152  * @rxfh: pointer to param struct (indir, key, hfunc)
5153  * @extack: extended ACK from the Netlink message
5154  *
5155  * Returns -EINVAL if the table specifies an invalid queue id, otherwise
5156  * returns 0 after programming the table.
5157  **/
5158 static int i40e_set_rxfh(struct net_device *netdev,
5159                          struct ethtool_rxfh_param *rxfh,
5160                          struct netlink_ext_ack *extack)
5161 {
5162         struct i40e_netdev_priv *np = netdev_priv(netdev);
5163         struct i40e_vsi *vsi = np->vsi;
5164         struct i40e_pf *pf = vsi->back;
5165         u8 *seed = NULL;
5166         u16 i;
5167
5168         if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE &&
5169             rxfh->hfunc != ETH_RSS_HASH_TOP)
5170                 return -EOPNOTSUPP;
5171
5172         if (rxfh->key) {
5173                 if (!vsi->rss_hkey_user) {
5174                         vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE,
5175                                                      GFP_KERNEL);
5176                         if (!vsi->rss_hkey_user)
5177                                 return -ENOMEM;
5178                 }
5179                 memcpy(vsi->rss_hkey_user, rxfh->key, I40E_HKEY_ARRAY_SIZE);
5180                 seed = vsi->rss_hkey_user;
5181         }
5182         if (!vsi->rss_lut_user) {
5183                 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
5184                 if (!vsi->rss_lut_user)
5185                         return -ENOMEM;
5186         }
5187
5188         /* Each 32 bits pointed by 'indir' is stored with a lut entry */
5189         if (rxfh->indir)
5190                 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
5191                         vsi->rss_lut_user[i] = (u8)(rxfh->indir[i]);
5192         else
5193                 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE,
5194                                   vsi->rss_size);
5195
5196         return i40e_config_rss(vsi, seed, vsi->rss_lut_user,
5197                                I40E_HLUT_ARRAY_SIZE);
5198 }
5199
5200 /**
5201  * i40e_get_priv_flags - report device private flags
5202  * @dev: network interface device structure
5203  *
5204  * The get string set count and the string set should be matched for each
5205  * flag returned.  Add new strings for each flag to the i40e_gstrings_priv_flags
5206  * array.
5207  *
5208  * Returns a u32 bitmap of flags.
5209  **/
5210 static u32 i40e_get_priv_flags(struct net_device *dev)
5211 {
5212         struct i40e_netdev_priv *np = netdev_priv(dev);
5213         struct i40e_vsi *vsi = np->vsi;
5214         struct i40e_pf *pf = vsi->back;
5215         u32 i, j, ret_flags = 0;
5216
5217         for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
5218                 const struct i40e_priv_flags *priv_flag;
5219
5220                 priv_flag = &i40e_gstrings_priv_flags[i];
5221
5222                 if (test_bit(priv_flag->bitno, pf->flags))
5223                         ret_flags |= BIT(i);
5224         }
5225
5226         if (pf->hw.pf_id != 0)
5227                 return ret_flags;
5228
5229         for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) {
5230                 const struct i40e_priv_flags *priv_flag;
5231
5232                 priv_flag = &i40e_gl_gstrings_priv_flags[j];
5233
5234                 if (test_bit(priv_flag->bitno, pf->flags))
5235                         ret_flags |= BIT(i + j);
5236         }
5237
5238         return ret_flags;
5239 }
5240
5241 /**
5242  * i40e_set_priv_flags - set private flags
5243  * @dev: network interface device structure
5244  * @flags: bit flags to be set
5245  **/
5246 static int i40e_set_priv_flags(struct net_device *dev, u32 flags)
5247 {
5248         DECLARE_BITMAP(changed_flags, I40E_PF_FLAGS_NBITS);
5249         DECLARE_BITMAP(orig_flags, I40E_PF_FLAGS_NBITS);
5250         DECLARE_BITMAP(new_flags, I40E_PF_FLAGS_NBITS);
5251         struct i40e_netdev_priv *np = netdev_priv(dev);
5252         enum i40e_admin_queue_err adq_err;
5253         struct i40e_vsi *vsi = np->vsi;
5254         struct i40e_pf *pf = vsi->back;
5255         u32 reset_needed = 0;
5256         int status;
5257         u32 i, j;
5258
5259         bitmap_copy(orig_flags, pf->flags, I40E_PF_FLAGS_NBITS);
5260         bitmap_copy(new_flags, pf->flags, I40E_PF_FLAGS_NBITS);
5261
5262         for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
5263                 const struct i40e_priv_flags *priv_flag;
5264                 bool new_val;
5265
5266                 priv_flag = &i40e_gstrings_priv_flags[i];
5267                 new_val = (flags & BIT(i)) ? true : false;
5268
5269                 /* If this is a read-only flag, it can't be changed */
5270                 if (priv_flag->read_only &&
5271                     test_bit(priv_flag->bitno, orig_flags) != new_val)
5272                         return -EOPNOTSUPP;
5273
5274                 if (new_val)
5275                         set_bit(priv_flag->bitno, new_flags);
5276                 else
5277                         clear_bit(priv_flag->bitno, new_flags);
5278         }
5279
5280         if (pf->hw.pf_id != 0)
5281                 goto flags_complete;
5282
5283         for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) {
5284                 const struct i40e_priv_flags *priv_flag;
5285                 bool new_val;
5286
5287                 priv_flag = &i40e_gl_gstrings_priv_flags[j];
5288                 new_val = (flags & BIT(i + j)) ? true : false;
5289
5290                 /* If this is a read-only flag, it can't be changed */
5291                 if (priv_flag->read_only &&
5292                     test_bit(priv_flag->bitno, orig_flags) != new_val)
5293                         return -EOPNOTSUPP;
5294
5295                 if (new_val)
5296                         set_bit(priv_flag->bitno, new_flags);
5297                 else
5298                         clear_bit(priv_flag->bitno, new_flags);
5299         }
5300
5301 flags_complete:
5302         bitmap_xor(changed_flags, pf->flags, orig_flags, I40E_PF_FLAGS_NBITS);
5303
5304         if (test_bit(I40E_FLAG_FW_LLDP_DIS, changed_flags))
5305                 reset_needed = I40E_PF_RESET_AND_REBUILD_FLAG;
5306
5307         if (test_bit(I40E_FLAG_VEB_STATS_ENA, changed_flags) ||
5308             test_bit(I40E_FLAG_LEGACY_RX_ENA, changed_flags) ||
5309             test_bit(I40E_FLAG_SOURCE_PRUNING_DIS, changed_flags))
5310                 reset_needed = BIT(__I40E_PF_RESET_REQUESTED);
5311
5312         /* Before we finalize any flag changes, we need to perform some
5313          * checks to ensure that the changes are supported and safe.
5314          */
5315
5316         /* ATR eviction is not supported on all devices */
5317         if (test_bit(I40E_FLAG_HW_ATR_EVICT_ENA, new_flags) &&
5318             !test_bit(I40E_HW_CAP_ATR_EVICT, pf->hw.caps))
5319                 return -EOPNOTSUPP;
5320
5321         /* If the driver detected FW LLDP was disabled on init, this flag could
5322          * be set, however we do not support _changing_ the flag:
5323          * - on XL710 if NPAR is enabled or FW API version < 1.7
5324          * - on X722 with FW API version < 1.6
5325          * There are situations where older FW versions/NPAR enabled PFs could
5326          * disable LLDP, however we _must_ not allow the user to enable/disable
5327          * LLDP with this flag on unsupported FW versions.
5328          */
5329         if (test_bit(I40E_FLAG_FW_LLDP_DIS, changed_flags) &&
5330             !test_bit(I40E_HW_CAP_FW_LLDP_STOPPABLE, pf->hw.caps)) {
5331                 dev_warn(&pf->pdev->dev,
5332                          "Device does not support changing FW LLDP\n");
5333                 return -EOPNOTSUPP;
5334         }
5335
5336         if (test_bit(I40E_FLAG_RS_FEC, changed_flags) &&
5337             pf->hw.device_id != I40E_DEV_ID_25G_SFP28 &&
5338             pf->hw.device_id != I40E_DEV_ID_25G_B) {
5339                 dev_warn(&pf->pdev->dev,
5340                          "Device does not support changing FEC configuration\n");
5341                 return -EOPNOTSUPP;
5342         }
5343
5344         if (test_bit(I40E_FLAG_BASE_R_FEC, changed_flags) &&
5345             pf->hw.device_id != I40E_DEV_ID_25G_SFP28 &&
5346             pf->hw.device_id != I40E_DEV_ID_25G_B &&
5347             pf->hw.device_id != I40E_DEV_ID_KX_X722) {
5348                 dev_warn(&pf->pdev->dev,
5349                          "Device does not support changing FEC configuration\n");
5350                 return -EOPNOTSUPP;
5351         }
5352
5353         /* Process any additional changes needed as a result of flag changes.
5354          * The changed_flags value reflects the list of bits that were
5355          * changed in the code above.
5356          */
5357
5358         /* Flush current ATR settings if ATR was disabled */
5359         if (test_bit(I40E_FLAG_FD_ATR_ENA, changed_flags) &&
5360             !test_bit(I40E_FLAG_FD_ATR_ENA, new_flags)) {
5361                 set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state);
5362                 set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state);
5363         }
5364
5365         if (test_bit(I40E_FLAG_TRUE_PROMISC_ENA, changed_flags)) {
5366                 u16 sw_flags = 0, valid_flags = 0;
5367                 int ret;
5368
5369                 if (!test_bit(I40E_FLAG_TRUE_PROMISC_ENA, new_flags))
5370                         sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
5371                 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
5372                 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags,
5373                                                 0, NULL);
5374                 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) {
5375                         dev_info(&pf->pdev->dev,
5376                                  "couldn't set switch config bits, err %pe aq_err %s\n",
5377                                  ERR_PTR(ret),
5378                                  i40e_aq_str(&pf->hw,
5379                                              pf->hw.aq.asq_last_status));
5380                         /* not a fatal problem, just keep going */
5381                 }
5382         }
5383
5384         if (test_bit(I40E_FLAG_RS_FEC, changed_flags) ||
5385             test_bit(I40E_FLAG_BASE_R_FEC, changed_flags)) {
5386                 u8 fec_cfg = 0;
5387
5388                 if (test_bit(I40E_FLAG_RS_FEC, new_flags) &&
5389                     test_bit(I40E_FLAG_BASE_R_FEC, new_flags)) {
5390                         fec_cfg = I40E_AQ_SET_FEC_AUTO;
5391                 } else if (test_bit(I40E_FLAG_RS_FEC, new_flags)) {
5392                         fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS |
5393                                    I40E_AQ_SET_FEC_ABILITY_RS);
5394                 } else if (test_bit(I40E_FLAG_BASE_R_FEC, new_flags)) {
5395                         fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR |
5396                                    I40E_AQ_SET_FEC_ABILITY_KR);
5397                 }
5398                 if (i40e_set_fec_cfg(dev, fec_cfg))
5399                         dev_warn(&pf->pdev->dev, "Cannot change FEC config\n");
5400         }
5401
5402         if (test_bit(I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, changed_flags) &&
5403             test_bit(I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENA, orig_flags)) {
5404                 dev_err(&pf->pdev->dev,
5405                         "Setting link-down-on-close not supported on this port (because total-port-shutdown is enabled)\n");
5406                 return -EOPNOTSUPP;
5407         }
5408
5409         if (test_bit(I40E_FLAG_VF_VLAN_PRUNING_ENA, changed_flags) &&
5410             pf->num_alloc_vfs) {
5411                 dev_warn(&pf->pdev->dev,
5412                          "Changing vf-vlan-pruning flag while VF(s) are active is not supported\n");
5413                 return -EOPNOTSUPP;
5414         }
5415
5416         if (test_bit(I40E_FLAG_LEGACY_RX_ENA, changed_flags) &&
5417             I40E_2K_TOO_SMALL_WITH_PADDING) {
5418                 dev_warn(&pf->pdev->dev,
5419                          "2k Rx buffer is too small to fit standard MTU and skb_shared_info\n");
5420                 return -EOPNOTSUPP;
5421         }
5422
5423         if (test_bit(I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, changed_flags) &&
5424             test_bit(I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, new_flags) &&
5425             test_bit(I40E_FLAG_MFP_ENA, new_flags))
5426                 dev_warn(&pf->pdev->dev,
5427                          "Turning on link-down-on-close flag may affect other partitions\n");
5428
5429         if (test_bit(I40E_FLAG_FW_LLDP_DIS, changed_flags)) {
5430                 if (test_bit(I40E_FLAG_FW_LLDP_DIS, new_flags)) {
5431 #ifdef CONFIG_I40E_DCB
5432                         i40e_dcb_sw_default_config(pf);
5433 #endif /* CONFIG_I40E_DCB */
5434                         i40e_aq_cfg_lldp_mib_change_event(&pf->hw, false, NULL);
5435                         i40e_aq_stop_lldp(&pf->hw, true, false, NULL);
5436                 } else {
5437                         status = i40e_aq_start_lldp(&pf->hw, false, NULL);
5438                         if (status) {
5439                                 adq_err = pf->hw.aq.asq_last_status;
5440                                 switch (adq_err) {
5441                                 case I40E_AQ_RC_EEXIST:
5442                                         dev_warn(&pf->pdev->dev,
5443                                                  "FW LLDP agent is already running\n");
5444                                         reset_needed = 0;
5445                                         break;
5446                                 case I40E_AQ_RC_EPERM:
5447                                         dev_warn(&pf->pdev->dev,
5448                                                  "Device configuration forbids SW from starting the LLDP agent.\n");
5449                                         return -EINVAL;
5450                                 case I40E_AQ_RC_EAGAIN:
5451                                         dev_warn(&pf->pdev->dev,
5452                                                  "Stop FW LLDP agent command is still being processed, please try again in a second.\n");
5453                                         return -EBUSY;
5454                                 default:
5455                                         dev_warn(&pf->pdev->dev,
5456                                                  "Starting FW LLDP agent failed: error: %pe, %s\n",
5457                                                  ERR_PTR(status),
5458                                                  i40e_aq_str(&pf->hw,
5459                                                              adq_err));
5460                                         return -EINVAL;
5461                                 }
5462                         }
5463                 }
5464         }
5465
5466         /* Now that we've checked to ensure that the new flags are valid, load
5467          * them into place. Since we only modify flags either (a) during
5468          * initialization or (b) while holding the RTNL lock, we don't need
5469          * anything fancy here.
5470          */
5471         bitmap_copy(pf->flags, new_flags, I40E_PF_FLAGS_NBITS);
5472
5473         /* Issue reset to cause things to take effect, as additional bits
5474          * are added we will need to create a mask of bits requiring reset
5475          */
5476         if (reset_needed)
5477                 i40e_do_reset(pf, reset_needed, true);
5478
5479         return 0;
5480 }
5481
5482 /**
5483  * i40e_get_module_info - get (Q)SFP+ module type info
5484  * @netdev: network interface device structure
5485  * @modinfo: module EEPROM size and layout information structure
5486  **/
5487 static int i40e_get_module_info(struct net_device *netdev,
5488                                 struct ethtool_modinfo *modinfo)
5489 {
5490         struct i40e_netdev_priv *np = netdev_priv(netdev);
5491         struct i40e_vsi *vsi = np->vsi;
5492         struct i40e_pf *pf = vsi->back;
5493         struct i40e_hw *hw = &pf->hw;
5494         u32 sff8472_comp = 0;
5495         u32 sff8472_swap = 0;
5496         u32 sff8636_rev = 0;
5497         u32 type = 0;
5498         int status;
5499
5500         /* Check if firmware supports reading module EEPROM. */
5501         if (!test_bit(I40E_HW_CAP_AQ_PHY_ACCESS, hw->caps)) {
5502                 netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n");
5503                 return -EINVAL;
5504         }
5505
5506         status = i40e_update_link_info(hw);
5507         if (status)
5508                 return -EIO;
5509
5510         if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) {
5511                 netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n");
5512                 return -EINVAL;
5513         }
5514
5515         type = hw->phy.link_info.module_type[0];
5516
5517         switch (type) {
5518         case I40E_MODULE_TYPE_SFP:
5519                 status = i40e_aq_get_phy_register(hw,
5520                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5521                                 I40E_I2C_EEPROM_DEV_ADDR, true,
5522                                 I40E_MODULE_SFF_8472_COMP,
5523                                 &sff8472_comp, NULL);
5524                 if (status)
5525                         return -EIO;
5526
5527                 status = i40e_aq_get_phy_register(hw,
5528                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5529                                 I40E_I2C_EEPROM_DEV_ADDR, true,
5530                                 I40E_MODULE_SFF_8472_SWAP,
5531                                 &sff8472_swap, NULL);
5532                 if (status)
5533                         return -EIO;
5534
5535                 /* Check if the module requires address swap to access
5536                  * the other EEPROM memory page.
5537                  */
5538                 if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) {
5539                         netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n");
5540                         modinfo->type = ETH_MODULE_SFF_8079;
5541                         modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5542                 } else if (sff8472_comp == 0x00) {
5543                         /* Module is not SFF-8472 compliant */
5544                         modinfo->type = ETH_MODULE_SFF_8079;
5545                         modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5546                 } else if (!(sff8472_swap & I40E_MODULE_SFF_DDM_IMPLEMENTED)) {
5547                         /* Module is SFF-8472 compliant but doesn't implement
5548                          * Digital Diagnostic Monitoring (DDM).
5549                          */
5550                         modinfo->type = ETH_MODULE_SFF_8079;
5551                         modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5552                 } else {
5553                         modinfo->type = ETH_MODULE_SFF_8472;
5554                         modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
5555                 }
5556                 break;
5557         case I40E_MODULE_TYPE_QSFP_PLUS:
5558                 /* Read from memory page 0. */
5559                 status = i40e_aq_get_phy_register(hw,
5560                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5561                                 0, true,
5562                                 I40E_MODULE_REVISION_ADDR,
5563                                 &sff8636_rev, NULL);
5564                 if (status)
5565                         return -EIO;
5566                 /* Determine revision compliance byte */
5567                 if (sff8636_rev > 0x02) {
5568                         /* Module is SFF-8636 compliant */
5569                         modinfo->type = ETH_MODULE_SFF_8636;
5570                         modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5571                 } else {
5572                         modinfo->type = ETH_MODULE_SFF_8436;
5573                         modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5574                 }
5575                 break;
5576         case I40E_MODULE_TYPE_QSFP28:
5577                 modinfo->type = ETH_MODULE_SFF_8636;
5578                 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5579                 break;
5580         default:
5581                 netdev_dbg(vsi->netdev, "SFP module type unrecognized or no SFP connector used.\n");
5582                 return -EOPNOTSUPP;
5583         }
5584         return 0;
5585 }
5586
5587 /**
5588  * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents
5589  * @netdev: network interface device structure
5590  * @ee: EEPROM dump request structure
5591  * @data: buffer to be filled with EEPROM contents
5592  **/
5593 static int i40e_get_module_eeprom(struct net_device *netdev,
5594                                   struct ethtool_eeprom *ee,
5595                                   u8 *data)
5596 {
5597         struct i40e_netdev_priv *np = netdev_priv(netdev);
5598         struct i40e_vsi *vsi = np->vsi;
5599         struct i40e_pf *pf = vsi->back;
5600         struct i40e_hw *hw = &pf->hw;
5601         bool is_sfp = false;
5602         u32 value = 0;
5603         int status;
5604         int i;
5605
5606         if (!ee || !ee->len || !data)
5607                 return -EINVAL;
5608
5609         if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP)
5610                 is_sfp = true;
5611
5612         for (i = 0; i < ee->len; i++) {
5613                 u32 offset = i + ee->offset;
5614                 u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0;
5615
5616                 /* Check if we need to access the other memory page */
5617                 if (is_sfp) {
5618                         if (offset >= ETH_MODULE_SFF_8079_LEN) {
5619                                 offset -= ETH_MODULE_SFF_8079_LEN;
5620                                 addr = I40E_I2C_EEPROM_DEV_ADDR2;
5621                         }
5622                 } else {
5623                         while (offset >= ETH_MODULE_SFF_8436_LEN) {
5624                                 /* Compute memory page number and offset. */
5625                                 offset -= ETH_MODULE_SFF_8436_LEN / 2;
5626                                 addr++;
5627                         }
5628                 }
5629
5630                 status = i40e_aq_get_phy_register(hw,
5631                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5632                                 addr, true, offset, &value, NULL);
5633                 if (status)
5634                         return -EIO;
5635                 data[i] = value;
5636         }
5637         return 0;
5638 }
5639
5640 static void i40e_eee_capability_to_kedata_supported(__le16 eee_capability_,
5641                                                     unsigned long *supported)
5642 {
5643         const int eee_capability = le16_to_cpu(eee_capability_);
5644         static const int lut[] = {
5645                 ETHTOOL_LINK_MODE_100baseT_Full_BIT,
5646                 ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
5647                 ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
5648                 ETHTOOL_LINK_MODE_1000baseKX_Full_BIT,
5649                 ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT,
5650                 ETHTOOL_LINK_MODE_10000baseKR_Full_BIT,
5651                 ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT,
5652         };
5653
5654         linkmode_zero(supported);
5655         for (unsigned int i = ARRAY_SIZE(lut); i--; )
5656                 if (eee_capability & BIT(i + 1))
5657                         linkmode_set_bit(lut[i], supported);
5658 }
5659
5660 static int i40e_get_eee(struct net_device *netdev, struct ethtool_keee *edata)
5661 {
5662         struct i40e_netdev_priv *np = netdev_priv(netdev);
5663         struct i40e_aq_get_phy_abilities_resp phy_cfg;
5664         struct i40e_vsi *vsi = np->vsi;
5665         struct i40e_pf *pf = vsi->back;
5666         struct i40e_hw *hw = &pf->hw;
5667         int status;
5668
5669         /* Get initial PHY capabilities */
5670         status = i40e_aq_get_phy_capabilities(hw, false, true, &phy_cfg, NULL);
5671         if (status)
5672                 return -EAGAIN;
5673
5674         /* Check whether NIC configuration is compatible with Energy Efficient
5675          * Ethernet (EEE) mode.
5676          */
5677         if (phy_cfg.eee_capability == 0)
5678                 return -EOPNOTSUPP;
5679
5680         i40e_eee_capability_to_kedata_supported(phy_cfg.eee_capability,
5681                                                 edata->supported);
5682         linkmode_copy(edata->lp_advertised, edata->supported);
5683
5684         /* Get current configuration */
5685         status = i40e_aq_get_phy_capabilities(hw, false, false, &phy_cfg, NULL);
5686         if (status)
5687                 return -EAGAIN;
5688
5689         linkmode_zero(edata->advertised);
5690         if (phy_cfg.eee_capability)
5691                 linkmode_copy(edata->advertised, edata->supported);
5692         edata->eee_enabled = !!phy_cfg.eee_capability;
5693         edata->tx_lpi_enabled = pf->stats.tx_lpi_status;
5694
5695         edata->eee_active = pf->stats.tx_lpi_status && pf->stats.rx_lpi_status;
5696
5697         return 0;
5698 }
5699
5700 static int i40e_is_eee_param_supported(struct net_device *netdev,
5701                                        struct ethtool_keee *edata)
5702 {
5703         struct i40e_netdev_priv *np = netdev_priv(netdev);
5704         struct i40e_vsi *vsi = np->vsi;
5705         struct i40e_pf *pf = vsi->back;
5706         struct i40e_ethtool_not_used {
5707                 bool value;
5708                 const char *name;
5709         } param[] = {
5710                 {!!(edata->advertised[0] & ~edata->supported[0]), "advertise"},
5711                 {!!edata->tx_lpi_timer, "tx-timer"},
5712                 {edata->tx_lpi_enabled != pf->stats.tx_lpi_status, "tx-lpi"}
5713         };
5714         int i;
5715
5716         for (i = 0; i < ARRAY_SIZE(param); i++) {
5717                 if (param[i].value) {
5718                         netdev_info(netdev,
5719                                     "EEE setting %s not supported\n",
5720                                     param[i].name);
5721                         return -EOPNOTSUPP;
5722                 }
5723         }
5724
5725         return 0;
5726 }
5727
5728 static int i40e_set_eee(struct net_device *netdev, struct ethtool_keee *edata)
5729 {
5730         struct i40e_netdev_priv *np = netdev_priv(netdev);
5731         struct i40e_aq_get_phy_abilities_resp abilities;
5732         struct i40e_aq_set_phy_config config;
5733         struct i40e_vsi *vsi = np->vsi;
5734         struct i40e_pf *pf = vsi->back;
5735         struct i40e_hw *hw = &pf->hw;
5736         __le16 eee_capability;
5737         int status;
5738
5739         /* Deny parameters we don't support */
5740         if (i40e_is_eee_param_supported(netdev, edata))
5741                 return -EOPNOTSUPP;
5742
5743         /* Get initial PHY capabilities */
5744         status = i40e_aq_get_phy_capabilities(hw, false, true, &abilities,
5745                                               NULL);
5746         if (status)
5747                 return -EAGAIN;
5748
5749         /* Check whether NIC configuration is compatible with Energy Efficient
5750          * Ethernet (EEE) mode.
5751          */
5752         if (abilities.eee_capability == 0)
5753                 return -EOPNOTSUPP;
5754
5755         /* Cache initial EEE capability */
5756         eee_capability = abilities.eee_capability;
5757
5758         /* Get current PHY configuration */
5759         status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
5760                                               NULL);
5761         if (status)
5762                 return -EAGAIN;
5763
5764         /* Cache current PHY configuration */
5765         config.phy_type = abilities.phy_type;
5766         config.phy_type_ext = abilities.phy_type_ext;
5767         config.link_speed = abilities.link_speed;
5768         config.abilities = abilities.abilities |
5769                            I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
5770         config.eeer = abilities.eeer_val;
5771         config.low_power_ctrl = abilities.d3_lpan;
5772         config.fec_config = abilities.fec_cfg_curr_mod_ext_info &
5773                             I40E_AQ_PHY_FEC_CONFIG_MASK;
5774
5775         /* Set desired EEE state */
5776         if (edata->eee_enabled) {
5777                 config.eee_capability = eee_capability;
5778                 config.eeer |= cpu_to_le32(I40E_PRTPM_EEER_TX_LPI_EN_MASK);
5779         } else {
5780                 config.eee_capability = 0;
5781                 config.eeer &= cpu_to_le32(~I40E_PRTPM_EEER_TX_LPI_EN_MASK);
5782         }
5783
5784         /* Apply modified PHY configuration */
5785         status = i40e_aq_set_phy_config(hw, &config, NULL);
5786         if (status)
5787                 return -EAGAIN;
5788
5789         return 0;
5790 }
5791
5792 static const struct ethtool_ops i40e_ethtool_recovery_mode_ops = {
5793         .get_drvinfo            = i40e_get_drvinfo,
5794         .set_eeprom             = i40e_set_eeprom,
5795         .get_eeprom_len         = i40e_get_eeprom_len,
5796         .get_eeprom             = i40e_get_eeprom,
5797 };
5798
5799 static const struct ethtool_ops i40e_ethtool_ops = {
5800         .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
5801                                      ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ |
5802                                      ETHTOOL_COALESCE_USE_ADAPTIVE |
5803                                      ETHTOOL_COALESCE_RX_USECS_HIGH |
5804                                      ETHTOOL_COALESCE_TX_USECS_HIGH,
5805         .get_drvinfo            = i40e_get_drvinfo,
5806         .get_regs_len           = i40e_get_regs_len,
5807         .get_regs               = i40e_get_regs,
5808         .nway_reset             = i40e_nway_reset,
5809         .get_link               = ethtool_op_get_link,
5810         .get_wol                = i40e_get_wol,
5811         .set_wol                = i40e_set_wol,
5812         .set_eeprom             = i40e_set_eeprom,
5813         .get_eeprom_len         = i40e_get_eeprom_len,
5814         .get_eeprom             = i40e_get_eeprom,
5815         .get_ringparam          = i40e_get_ringparam,
5816         .set_ringparam          = i40e_set_ringparam,
5817         .get_pauseparam         = i40e_get_pauseparam,
5818         .set_pauseparam         = i40e_set_pauseparam,
5819         .get_msglevel           = i40e_get_msglevel,
5820         .set_msglevel           = i40e_set_msglevel,
5821         .get_rxnfc              = i40e_get_rxnfc,
5822         .set_rxnfc              = i40e_set_rxnfc,
5823         .self_test              = i40e_diag_test,
5824         .get_strings            = i40e_get_strings,
5825         .get_eee                = i40e_get_eee,
5826         .set_eee                = i40e_set_eee,
5827         .set_phys_id            = i40e_set_phys_id,
5828         .get_sset_count         = i40e_get_sset_count,
5829         .get_ethtool_stats      = i40e_get_ethtool_stats,
5830         .get_coalesce           = i40e_get_coalesce,
5831         .set_coalesce           = i40e_set_coalesce,
5832         .get_rxfh_key_size      = i40e_get_rxfh_key_size,
5833         .get_rxfh_indir_size    = i40e_get_rxfh_indir_size,
5834         .get_rxfh               = i40e_get_rxfh,
5835         .set_rxfh               = i40e_set_rxfh,
5836         .get_channels           = i40e_get_channels,
5837         .set_channels           = i40e_set_channels,
5838         .get_module_info        = i40e_get_module_info,
5839         .get_module_eeprom      = i40e_get_module_eeprom,
5840         .get_ts_info            = i40e_get_ts_info,
5841         .get_priv_flags         = i40e_get_priv_flags,
5842         .set_priv_flags         = i40e_set_priv_flags,
5843         .get_per_queue_coalesce = i40e_get_per_queue_coalesce,
5844         .set_per_queue_coalesce = i40e_set_per_queue_coalesce,
5845         .get_link_ksettings     = i40e_get_link_ksettings,
5846         .set_link_ksettings     = i40e_set_link_ksettings,
5847         .get_fecparam = i40e_get_fec_param,
5848         .set_fecparam = i40e_set_fec_param,
5849         .flash_device = i40e_ddp_flash,
5850 };
5851
5852 void i40e_set_ethtool_ops(struct net_device *netdev)
5853 {
5854         struct i40e_netdev_priv *np = netdev_priv(netdev);
5855         struct i40e_pf          *pf = np->vsi->back;
5856
5857         if (!test_bit(__I40E_RECOVERY_MODE, pf->state))
5858                 netdev->ethtool_ops = &i40e_ethtool_ops;
5859         else
5860                 netdev->ethtool_ops = &i40e_ethtool_recovery_mode_ops;
5861 }