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

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* Copyright(c) 2013 - 2018 Intel Corporation. */
   3
   4 /* ethtool support for i40e */
   5
   6 #include "i40e.h"
   7 #include "i40e_diag.h"
   8 #include "i40e_txrx_common.h"
   9
  10 /* ethtool statistics helpers */
  11
  12 /**
  13  * struct i40e_stats - definition for an ethtool statistic
  14  * @stat_string: statistic name to display in ethtool -S output
  15  * @sizeof_stat: the sizeof() the stat, must be no greater than sizeof(u64)
  16  * @stat_offset: offsetof() the stat from a base pointer
  17  *
  18  * This structure defines a statistic to be added to the ethtool stats buffer.
  19  * It defines a statistic as offset from a common base pointer. Stats should
  20  * be defined in constant arrays using the I40E_STAT macro, with every element
  21  * of the array using the same _type for calculating the sizeof_stat and
  22  * stat_offset.
  23  *
  24  * The @sizeof_stat is expected to be sizeof(u8), sizeof(u16), sizeof(u32) or
  25  * sizeof(u64). Other sizes are not expected and will produce a WARN_ONCE from
  26  * the i40e_add_ethtool_stat() helper function.
  27  *
  28  * The @stat_string is interpreted as a format string, allowing formatted
  29  * values to be inserted while looping over multiple structures for a given
  30  * statistics array. Thus, every statistic string in an array should have the
  31  * same type and number of format specifiers, to be formatted by variadic
  32  * arguments to the i40e_add_stat_string() helper function.
  33  **/
  34 struct i40e_stats {
  35         char stat_string[ETH_GSTRING_LEN];
  36         int sizeof_stat;
  37         int stat_offset;
  38 };
  39
  40 /* Helper macro to define an i40e_stat structure with proper size and type.
  41  * Use this when defining constant statistics arrays. Note that @_type expects
  42  * only a type name and is used multiple times.
  43  */
  44 #define I40E_STAT(_type, _name, _stat) { \
  45         .stat_string = _name, \
  46         .sizeof_stat = sizeof_field(_type, _stat), \
  47         .stat_offset = offsetof(_type, _stat) \
  48 }
  49
  50 /* Helper macro for defining some statistics directly copied from the netdev
  51  * stats structure.
  52  */
  53 #define I40E_NETDEV_STAT(_net_stat) \
  54         I40E_STAT(struct rtnl_link_stats64, #_net_stat, _net_stat)
  55
  56 /* Helper macro for defining some statistics related to queues */
  57 #define I40E_QUEUE_STAT(_name, _stat) \
  58         I40E_STAT(struct i40e_ring, _name, _stat)
  59
  60 /* Stats associated with a Tx or Rx ring */
  61 static const struct i40e_stats i40e_gstrings_queue_stats[] = {
  62         I40E_QUEUE_STAT("%s-%u.packets", stats.packets),
  63         I40E_QUEUE_STAT("%s-%u.bytes", stats.bytes),
  64 };
  65
  66 /**
  67  * i40e_add_one_ethtool_stat - copy the stat into the supplied buffer
  68  * @data: location to store the stat value
  69  * @pointer: basis for where to copy from
  70  * @stat: the stat definition
  71  *
  72  * Copies the stat data defined by the pointer and stat structure pair into
  73  * the memory supplied as data. Used to implement i40e_add_ethtool_stats and
  74  * i40e_add_queue_stats. If the pointer is null, data will be zero'd.
  75  */
  76 static void
  77 i40e_add_one_ethtool_stat(u64 *data, void *pointer,
  78                           const struct i40e_stats *stat)
  79 {
  80         char *p;
  81
  82         if (!pointer) {
  83                 /* ensure that the ethtool data buffer is zero'd for any stats
  84                  * which don't have a valid pointer.
  85                  */
  86                 *data = 0;
  87                 return;
  88         }
  89
  90         p = (char *)pointer + stat->stat_offset;
  91         switch (stat->sizeof_stat) {
  92         case sizeof(u64):
  93                 *data = *((u64 *)p);
  94                 break;
  95         case sizeof(u32):
  96                 *data = *((u32 *)p);
  97                 break;
  98         case sizeof(u16):
  99                 *data = *((u16 *)p);
 100                 break;
 101         case sizeof(u8):
 102                 *data = *((u8 *)p);
 103                 break;
 104         default:
 105                 WARN_ONCE(1, "unexpected stat size for %s",
 106                           stat->stat_string);
 107                 *data = 0;
 108         }
 109 }
 110
 111 /**
 112  * __i40e_add_ethtool_stats - copy stats into the ethtool supplied buffer
 113  * @data: ethtool stats buffer
 114  * @pointer: location to copy stats from
 115  * @stats: array of stats to copy
 116  * @size: the size of the stats definition
 117  *
 118  * Copy the stats defined by the stats array using the pointer as a base into
 119  * the data buffer supplied by ethtool. Updates the data pointer to point to
 120  * the next empty location for successive calls to __i40e_add_ethtool_stats.
 121  * If pointer is null, set the data values to zero and update the pointer to
 122  * skip these stats.
 123  **/
 124 static void
 125 __i40e_add_ethtool_stats(u64 **data, void *pointer,
 126                          const struct i40e_stats stats[],
 127                          const unsigned int size)
 128 {
 129         unsigned int i;
 130
 131         for (i = 0; i < size; i++)
 132                 i40e_add_one_ethtool_stat((*data)++, pointer, &stats[i]);
 133 }
 134
 135 /**
 136  * i40e_add_ethtool_stats - copy stats into ethtool supplied buffer
 137  * @data: ethtool stats buffer
 138  * @pointer: location where stats are stored
 139  * @stats: static const array of stat definitions
 140  *
 141  * Macro to ease the use of __i40e_add_ethtool_stats by taking a static
 142  * constant stats array and passing the ARRAY_SIZE(). This avoids typos by
 143  * ensuring that we pass the size associated with the given stats array.
 144  *
 145  * The parameter @stats is evaluated twice, so parameters with side effects
 146  * should be avoided.
 147  **/
 148 #define i40e_add_ethtool_stats(data, pointer, stats) \
 149         __i40e_add_ethtool_stats(data, pointer, stats, ARRAY_SIZE(stats))
 150
 151 /**
 152  * i40e_add_queue_stats - copy queue statistics into supplied buffer
 153  * @data: ethtool stats buffer
 154  * @ring: the ring to copy
 155  *
 156  * Queue statistics must be copied while protected by
 157  * u64_stats_fetch_begin_irq, so we can't directly use i40e_add_ethtool_stats.
 158  * Assumes that queue stats are defined in i40e_gstrings_queue_stats. If the
 159  * ring pointer is null, zero out the queue stat values and update the data
 160  * pointer. Otherwise safely copy the stats from the ring into the supplied
 161  * buffer and update the data pointer when finished.
 162  *
 163  * This function expects to be called while under rcu_read_lock().
 164  **/
 165 static void
 166 i40e_add_queue_stats(u64 **data, struct i40e_ring *ring)
 167 {
 168         const unsigned int size = ARRAY_SIZE(i40e_gstrings_queue_stats);
 169         const struct i40e_stats *stats = i40e_gstrings_queue_stats;
 170         unsigned int start;
 171         unsigned int i;
 172
 173         /* To avoid invalid statistics values, ensure that we keep retrying
 174          * the copy until we get a consistent value according to
 175          * u64_stats_fetch_retry_irq. But first, make sure our ring is
 176          * non-null before attempting to access its syncp.
 177          */
 178         do {
 179                 start = !ring ? 0 : u64_stats_fetch_begin_irq(&ring->syncp);
 180                 for (i = 0; i < size; i++) {
 181                         i40e_add_one_ethtool_stat(&(*data)[i], ring,
 182                                                   &stats[i]);
 183                 }
 184         } while (ring && u64_stats_fetch_retry_irq(&ring->syncp, start));
 185
 186         /* Once we successfully copy the stats in, update the data pointer */
 187         *data += size;
 188 }
 189
 190 /**
 191  * __i40e_add_stat_strings - copy stat strings into ethtool buffer
 192  * @p: ethtool supplied buffer
 193  * @stats: stat definitions array
 194  * @size: size of the stats array
 195  *
 196  * Format and copy the strings described by stats into the buffer pointed at
 197  * by p.
 198  **/
 199 static void __i40e_add_stat_strings(u8 **p, const struct i40e_stats stats[],
 200                                     const unsigned int size, ...)
 201 {
 202         unsigned int i;
 203
 204         for (i = 0; i < size; i++) {
 205                 va_list args;
 206
 207                 va_start(args, size);
 208                 vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args);
 209                 *p += ETH_GSTRING_LEN;
 210                 va_end(args);
 211         }
 212 }
 213
 214 /**
 215  * 40e_add_stat_strings - copy stat strings into ethtool buffer
 216  * @p: ethtool supplied buffer
 217  * @stats: stat definitions array
 218  *
 219  * Format and copy the strings described by the const static stats value into
 220  * the buffer pointed at by p.
 221  *
 222  * The parameter @stats is evaluated twice, so parameters with side effects
 223  * should be avoided. Additionally, stats must be an array such that
 224  * ARRAY_SIZE can be called on it.
 225  **/
 226 #define i40e_add_stat_strings(p, stats, ...) \
 227         __i40e_add_stat_strings(p, stats, ARRAY_SIZE(stats), ## __VA_ARGS__)
 228
 229 #define I40E_PF_STAT(_name, _stat) \
 230         I40E_STAT(struct i40e_pf, _name, _stat)
 231 #define I40E_VSI_STAT(_name, _stat) \
 232         I40E_STAT(struct i40e_vsi, _name, _stat)
 233 #define I40E_VEB_STAT(_name, _stat) \
 234         I40E_STAT(struct i40e_veb, _name, _stat)
 235 #define I40E_PFC_STAT(_name, _stat) \
 236         I40E_STAT(struct i40e_pfc_stats, _name, _stat)
 237 #define I40E_QUEUE_STAT(_name, _stat) \
 238         I40E_STAT(struct i40e_ring, _name, _stat)
 239
 240 static const struct i40e_stats i40e_gstrings_net_stats[] = {
 241         I40E_NETDEV_STAT(rx_packets),
 242         I40E_NETDEV_STAT(tx_packets),
 243         I40E_NETDEV_STAT(rx_bytes),
 244         I40E_NETDEV_STAT(tx_bytes),
 245         I40E_NETDEV_STAT(rx_errors),
 246         I40E_NETDEV_STAT(tx_errors),
 247         I40E_NETDEV_STAT(rx_dropped),
 248         I40E_NETDEV_STAT(tx_dropped),
 249         I40E_NETDEV_STAT(collisions),
 250         I40E_NETDEV_STAT(rx_length_errors),
 251         I40E_NETDEV_STAT(rx_crc_errors),
 252 };
 253
 254 static const struct i40e_stats i40e_gstrings_veb_stats[] = {
 255         I40E_VEB_STAT("veb.rx_bytes", stats.rx_bytes),
 256         I40E_VEB_STAT("veb.tx_bytes", stats.tx_bytes),
 257         I40E_VEB_STAT("veb.rx_unicast", stats.rx_unicast),
 258         I40E_VEB_STAT("veb.tx_unicast", stats.tx_unicast),
 259         I40E_VEB_STAT("veb.rx_multicast", stats.rx_multicast),
 260         I40E_VEB_STAT("veb.tx_multicast", stats.tx_multicast),
 261         I40E_VEB_STAT("veb.rx_broadcast", stats.rx_broadcast),
 262         I40E_VEB_STAT("veb.tx_broadcast", stats.tx_broadcast),
 263         I40E_VEB_STAT("veb.rx_discards", stats.rx_discards),
 264         I40E_VEB_STAT("veb.tx_discards", stats.tx_discards),
 265         I40E_VEB_STAT("veb.tx_errors", stats.tx_errors),
 266         I40E_VEB_STAT("veb.rx_unknown_protocol", stats.rx_unknown_protocol),
 267 };
 268
 269 static const struct i40e_stats i40e_gstrings_veb_tc_stats[] = {
 270         I40E_VEB_STAT("veb.tc_%u_tx_packets", tc_stats.tc_tx_packets),
 271         I40E_VEB_STAT("veb.tc_%u_tx_bytes", tc_stats.tc_tx_bytes),
 272         I40E_VEB_STAT("veb.tc_%u_rx_packets", tc_stats.tc_rx_packets),
 273         I40E_VEB_STAT("veb.tc_%u_rx_bytes", tc_stats.tc_rx_bytes),
 274 };
 275
 276 static const struct i40e_stats i40e_gstrings_misc_stats[] = {
 277         I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast),
 278         I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast),
 279         I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast),
 280         I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast),
 281         I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast),
 282         I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast),
 283         I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol),
 284         I40E_VSI_STAT("tx_linearize", tx_linearize),
 285         I40E_VSI_STAT("tx_force_wb", tx_force_wb),
 286         I40E_VSI_STAT("tx_busy", tx_busy),
 287         I40E_VSI_STAT("rx_alloc_fail", rx_buf_failed),
 288         I40E_VSI_STAT("rx_pg_alloc_fail", rx_page_failed),
 289 };
 290
 291 /* These PF_STATs might look like duplicates of some NETDEV_STATs,
 292  * but they are separate.  This device supports Virtualization, and
 293  * as such might have several netdevs supporting VMDq and FCoE going
 294  * through a single port.  The NETDEV_STATs are for individual netdevs
 295  * seen at the top of the stack, and the PF_STATs are for the physical
 296  * function at the bottom of the stack hosting those netdevs.
 297  *
 298  * The PF_STATs are appended to the netdev stats only when ethtool -S
 299  * is queried on the base PF netdev, not on the VMDq or FCoE netdev.
 300  */
 301 static const struct i40e_stats i40e_gstrings_stats[] = {
 302         I40E_PF_STAT("port.rx_bytes", stats.eth.rx_bytes),
 303         I40E_PF_STAT("port.tx_bytes", stats.eth.tx_bytes),
 304         I40E_PF_STAT("port.rx_unicast", stats.eth.rx_unicast),
 305         I40E_PF_STAT("port.tx_unicast", stats.eth.tx_unicast),
 306         I40E_PF_STAT("port.rx_multicast", stats.eth.rx_multicast),
 307         I40E_PF_STAT("port.tx_multicast", stats.eth.tx_multicast),
 308         I40E_PF_STAT("port.rx_broadcast", stats.eth.rx_broadcast),
 309         I40E_PF_STAT("port.tx_broadcast", stats.eth.tx_broadcast),
 310         I40E_PF_STAT("port.tx_errors", stats.eth.tx_errors),
 311         I40E_PF_STAT("port.rx_dropped", stats.eth.rx_discards),
 312         I40E_PF_STAT("port.tx_dropped_link_down", stats.tx_dropped_link_down),
 313         I40E_PF_STAT("port.rx_crc_errors", stats.crc_errors),
 314         I40E_PF_STAT("port.illegal_bytes", stats.illegal_bytes),
 315         I40E_PF_STAT("port.mac_local_faults", stats.mac_local_faults),
 316         I40E_PF_STAT("port.mac_remote_faults", stats.mac_remote_faults),
 317         I40E_PF_STAT("port.tx_timeout", tx_timeout_count),
 318         I40E_PF_STAT("port.rx_csum_bad", hw_csum_rx_error),
 319         I40E_PF_STAT("port.rx_length_errors", stats.rx_length_errors),
 320         I40E_PF_STAT("port.link_xon_rx", stats.link_xon_rx),
 321         I40E_PF_STAT("port.link_xoff_rx", stats.link_xoff_rx),
 322         I40E_PF_STAT("port.link_xon_tx", stats.link_xon_tx),
 323         I40E_PF_STAT("port.link_xoff_tx", stats.link_xoff_tx),
 324         I40E_PF_STAT("port.rx_size_64", stats.rx_size_64),
 325         I40E_PF_STAT("port.rx_size_127", stats.rx_size_127),
 326         I40E_PF_STAT("port.rx_size_255", stats.rx_size_255),
 327         I40E_PF_STAT("port.rx_size_511", stats.rx_size_511),
 328         I40E_PF_STAT("port.rx_size_1023", stats.rx_size_1023),
 329         I40E_PF_STAT("port.rx_size_1522", stats.rx_size_1522),
 330         I40E_PF_STAT("port.rx_size_big", stats.rx_size_big),
 331         I40E_PF_STAT("port.tx_size_64", stats.tx_size_64),
 332         I40E_PF_STAT("port.tx_size_127", stats.tx_size_127),
 333         I40E_PF_STAT("port.tx_size_255", stats.tx_size_255),
 334         I40E_PF_STAT("port.tx_size_511", stats.tx_size_511),
 335         I40E_PF_STAT("port.tx_size_1023", stats.tx_size_1023),
 336         I40E_PF_STAT("port.tx_size_1522", stats.tx_size_1522),
 337         I40E_PF_STAT("port.tx_size_big", stats.tx_size_big),
 338         I40E_PF_STAT("port.rx_undersize", stats.rx_undersize),
 339         I40E_PF_STAT("port.rx_fragments", stats.rx_fragments),
 340         I40E_PF_STAT("port.rx_oversize", stats.rx_oversize),
 341         I40E_PF_STAT("port.rx_jabber", stats.rx_jabber),
 342         I40E_PF_STAT("port.VF_admin_queue_requests", vf_aq_requests),
 343         I40E_PF_STAT("port.arq_overflows", arq_overflows),
 344         I40E_PF_STAT("port.tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
 345         I40E_PF_STAT("port.rx_hwtstamp_cleared", rx_hwtstamp_cleared),
 346         I40E_PF_STAT("port.tx_hwtstamp_skipped", tx_hwtstamp_skipped),
 347         I40E_PF_STAT("port.fdir_flush_cnt", fd_flush_cnt),
 348         I40E_PF_STAT("port.fdir_atr_match", stats.fd_atr_match),
 349         I40E_PF_STAT("port.fdir_atr_tunnel_match", stats.fd_atr_tunnel_match),
 350         I40E_PF_STAT("port.fdir_atr_status", stats.fd_atr_status),
 351         I40E_PF_STAT("port.fdir_sb_match", stats.fd_sb_match),
 352         I40E_PF_STAT("port.fdir_sb_status", stats.fd_sb_status),
 353
 354         /* LPI stats */
 355         I40E_PF_STAT("port.tx_lpi_status", stats.tx_lpi_status),
 356         I40E_PF_STAT("port.rx_lpi_status", stats.rx_lpi_status),
 357         I40E_PF_STAT("port.tx_lpi_count", stats.tx_lpi_count),
 358         I40E_PF_STAT("port.rx_lpi_count", stats.rx_lpi_count),
 359 };
 360
 361 struct i40e_pfc_stats {
 362         u64 priority_xon_rx;
 363         u64 priority_xoff_rx;
 364         u64 priority_xon_tx;
 365         u64 priority_xoff_tx;
 366         u64 priority_xon_2_xoff;
 367 };
 368
 369 static const struct i40e_stats i40e_gstrings_pfc_stats[] = {
 370         I40E_PFC_STAT("port.tx_priority_%u_xon_tx", priority_xon_tx),
 371         I40E_PFC_STAT("port.tx_priority_%u_xoff_tx", priority_xoff_tx),
 372         I40E_PFC_STAT("port.rx_priority_%u_xon_rx", priority_xon_rx),
 373         I40E_PFC_STAT("port.rx_priority_%u_xoff_rx", priority_xoff_rx),
 374         I40E_PFC_STAT("port.rx_priority_%u_xon_2_xoff", priority_xon_2_xoff),
 375 };
 376
 377 #define I40E_NETDEV_STATS_LEN   ARRAY_SIZE(i40e_gstrings_net_stats)
 378
 379 #define I40E_MISC_STATS_LEN     ARRAY_SIZE(i40e_gstrings_misc_stats)
 380
 381 #define I40E_VSI_STATS_LEN      (I40E_NETDEV_STATS_LEN + I40E_MISC_STATS_LEN)
 382
 383 #define I40E_PFC_STATS_LEN      (ARRAY_SIZE(i40e_gstrings_pfc_stats) * \
 384                                  I40E_MAX_USER_PRIORITY)
 385
 386 #define I40E_VEB_STATS_LEN      (ARRAY_SIZE(i40e_gstrings_veb_stats) + \
 387                                  (ARRAY_SIZE(i40e_gstrings_veb_tc_stats) * \
 388                                   I40E_MAX_TRAFFIC_CLASS))
 389
 390 #define I40E_GLOBAL_STATS_LEN   ARRAY_SIZE(i40e_gstrings_stats)
 391
 392 #define I40E_PF_STATS_LEN       (I40E_GLOBAL_STATS_LEN + \
 393                                  I40E_PFC_STATS_LEN + \
 394                                  I40E_VEB_STATS_LEN + \
 395                                  I40E_VSI_STATS_LEN)
 396
 397 /* Length of stats for a single queue */
 398 #define I40E_QUEUE_STATS_LEN    ARRAY_SIZE(i40e_gstrings_queue_stats)
 399
 400 enum i40e_ethtool_test_id {
 401         I40E_ETH_TEST_REG = 0,
 402         I40E_ETH_TEST_EEPROM,
 403         I40E_ETH_TEST_INTR,
 404         I40E_ETH_TEST_LINK,
 405 };
 406
 407 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = {
 408         "Register test  (offline)",
 409         "Eeprom test    (offline)",
 410         "Interrupt test (offline)",
 411         "Link test   (on/offline)"
 412 };
 413
 414 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN)
 415
 416 struct i40e_priv_flags {
 417         char flag_string[ETH_GSTRING_LEN];
 418         u64 flag;
 419         bool read_only;
 420 };
 421
 422 #define I40E_PRIV_FLAG(_name, _flag, _read_only) { \
 423         .flag_string = _name, \
 424         .flag = _flag, \
 425         .read_only = _read_only, \
 426 }
 427
 428 static const struct i40e_priv_flags i40e_gstrings_priv_flags[] = {
 429         /* NOTE: MFP setting cannot be changed */
 430         I40E_PRIV_FLAG("MFP", I40E_FLAG_MFP_ENABLED, 1),
 431         I40E_PRIV_FLAG("total-port-shutdown",
 432                        I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED, 1),
 433         I40E_PRIV_FLAG("LinkPolling", I40E_FLAG_LINK_POLLING_ENABLED, 0),
 434         I40E_PRIV_FLAG("flow-director-atr", I40E_FLAG_FD_ATR_ENABLED, 0),
 435         I40E_PRIV_FLAG("veb-stats", I40E_FLAG_VEB_STATS_ENABLED, 0),
 436         I40E_PRIV_FLAG("hw-atr-eviction", I40E_FLAG_HW_ATR_EVICT_ENABLED, 0),
 437         I40E_PRIV_FLAG("link-down-on-close",
 438                        I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED, 0),
 439         I40E_PRIV_FLAG("legacy-rx", I40E_FLAG_LEGACY_RX, 0),
 440         I40E_PRIV_FLAG("disable-source-pruning",
 441                        I40E_FLAG_SOURCE_PRUNING_DISABLED, 0),
 442         I40E_PRIV_FLAG("disable-fw-lldp", I40E_FLAG_DISABLE_FW_LLDP, 0),
 443         I40E_PRIV_FLAG("rs-fec", I40E_FLAG_RS_FEC, 0),
 444         I40E_PRIV_FLAG("base-r-fec", I40E_FLAG_BASE_R_FEC, 0),
 445 };
 446
 447 #define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gstrings_priv_flags)
 448
 449 /* Private flags with a global effect, restricted to PF 0 */
 450 static const struct i40e_priv_flags i40e_gl_gstrings_priv_flags[] = {
 451         I40E_PRIV_FLAG("vf-true-promisc-support",
 452                        I40E_FLAG_TRUE_PROMISC_SUPPORT, 0),
 453 };
 454
 455 #define I40E_GL_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gl_gstrings_priv_flags)
 456
 457 /**
 458  * i40e_partition_setting_complaint - generic complaint for MFP restriction
 459  * @pf: the PF struct
 460  **/
 461 static void i40e_partition_setting_complaint(struct i40e_pf *pf)
 462 {
 463         dev_info(&pf->pdev->dev,
 464                  "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");
 465 }
 466
 467 /**
 468  * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes
 469  * @pf: PF struct with phy_types
 470  * @ks: ethtool link ksettings struct to fill out
 471  *
 472  **/
 473 static void i40e_phy_type_to_ethtool(struct i40e_pf *pf,
 474                                      struct ethtool_link_ksettings *ks)
 475 {
 476         struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info;
 477         u64 phy_types = pf->hw.phy.phy_types;
 478
 479         ethtool_link_ksettings_zero_link_mode(ks, supported);
 480         ethtool_link_ksettings_zero_link_mode(ks, advertising);
 481
 482         if (phy_types & I40E_CAP_PHY_TYPE_SGMII) {
 483                 ethtool_link_ksettings_add_link_mode(ks, supported,
 484                                                      1000baseT_Full);
 485                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 486                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 487                                                              1000baseT_Full);
 488                 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) {
 489                         ethtool_link_ksettings_add_link_mode(ks, supported,
 490                                                              100baseT_Full);
 491                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 492                                                              100baseT_Full);
 493                 }
 494         }
 495         if (phy_types & I40E_CAP_PHY_TYPE_XAUI ||
 496             phy_types & I40E_CAP_PHY_TYPE_XFI ||
 497             phy_types & I40E_CAP_PHY_TYPE_SFI ||
 498             phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU ||
 499             phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC) {
 500                 ethtool_link_ksettings_add_link_mode(ks, supported,
 501                                                      10000baseT_Full);
 502                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 503                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 504                                                              10000baseT_Full);
 505         }
 506         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_T) {
 507                 ethtool_link_ksettings_add_link_mode(ks, supported,
 508                                                      10000baseT_Full);
 509                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 510                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 511                                                              10000baseT_Full);
 512         }
 513         if (phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T) {
 514                 ethtool_link_ksettings_add_link_mode(ks, supported,
 515                                                      2500baseT_Full);
 516                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB)
 517                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 518                                                              2500baseT_Full);
 519         }
 520         if (phy_types & I40E_CAP_PHY_TYPE_5GBASE_T) {
 521                 ethtool_link_ksettings_add_link_mode(ks, supported,
 522                                                      5000baseT_Full);
 523                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB)
 524                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 525                                                              5000baseT_Full);
 526         }
 527         if (phy_types & I40E_CAP_PHY_TYPE_XLAUI ||
 528             phy_types & I40E_CAP_PHY_TYPE_XLPPI ||
 529             phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC)
 530                 ethtool_link_ksettings_add_link_mode(ks, supported,
 531                                                      40000baseCR4_Full);
 532         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
 533             phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) {
 534                 ethtool_link_ksettings_add_link_mode(ks, supported,
 535                                                      40000baseCR4_Full);
 536                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB)
 537                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 538                                                              40000baseCR4_Full);
 539         }
 540         if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) {
 541                 ethtool_link_ksettings_add_link_mode(ks, supported,
 542                                                      100baseT_Full);
 543                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
 544                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 545                                                              100baseT_Full);
 546         }
 547         if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T) {
 548                 ethtool_link_ksettings_add_link_mode(ks, supported,
 549                                                      1000baseT_Full);
 550                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 551                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 552                                                              1000baseT_Full);
 553         }
 554         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4) {
 555                 ethtool_link_ksettings_add_link_mode(ks, supported,
 556                                                      40000baseSR4_Full);
 557                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 558                                                      40000baseSR4_Full);
 559         }
 560         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4) {
 561                 ethtool_link_ksettings_add_link_mode(ks, supported,
 562                                                      40000baseLR4_Full);
 563                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 564                                                      40000baseLR4_Full);
 565         }
 566         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) {
 567                 ethtool_link_ksettings_add_link_mode(ks, supported,
 568                                                      40000baseKR4_Full);
 569                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 570                                                      40000baseKR4_Full);
 571         }
 572         if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) {
 573                 ethtool_link_ksettings_add_link_mode(ks, supported,
 574                                                      20000baseKR2_Full);
 575                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB)
 576                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 577                                                              20000baseKR2_Full);
 578         }
 579         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) {
 580                 ethtool_link_ksettings_add_link_mode(ks, supported,
 581                                                      10000baseKX4_Full);
 582                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 583                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 584                                                              10000baseKX4_Full);
 585         }
 586         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR &&
 587             !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) {
 588                 ethtool_link_ksettings_add_link_mode(ks, supported,
 589                                                      10000baseKR_Full);
 590                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 591                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 592                                                              10000baseKR_Full);
 593         }
 594         if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX &&
 595             !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) {
 596                 ethtool_link_ksettings_add_link_mode(ks, supported,
 597                                                      1000baseKX_Full);
 598                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 599                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 600                                                              1000baseKX_Full);
 601         }
 602         /* need to add 25G PHY types */
 603         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR) {
 604                 ethtool_link_ksettings_add_link_mode(ks, supported,
 605                                                      25000baseKR_Full);
 606                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 607                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 608                                                              25000baseKR_Full);
 609         }
 610         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR) {
 611                 ethtool_link_ksettings_add_link_mode(ks, supported,
 612                                                      25000baseCR_Full);
 613                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 614                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 615                                                              25000baseCR_Full);
 616         }
 617         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
 618             phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR) {
 619                 ethtool_link_ksettings_add_link_mode(ks, supported,
 620                                                      25000baseSR_Full);
 621                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 622                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 623                                                              25000baseSR_Full);
 624         }
 625         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC ||
 626             phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) {
 627                 ethtool_link_ksettings_add_link_mode(ks, supported,
 628                                                      25000baseCR_Full);
 629                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 630                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 631                                                              25000baseCR_Full);
 632         }
 633         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR ||
 634             phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR ||
 635             phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
 636             phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR ||
 637             phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC ||
 638             phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) {
 639                 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE);
 640                 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);
 641                 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);
 642                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) {
 643                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 644                                                              FEC_NONE);
 645                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 646                                                              FEC_RS);
 647                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 648                                                              FEC_BASER);
 649                 }
 650         }
 651         /* need to add new 10G PHY types */
 652         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
 653             phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU) {
 654                 ethtool_link_ksettings_add_link_mode(ks, supported,
 655                                                      10000baseCR_Full);
 656                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 657                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 658                                                              10000baseCR_Full);
 659         }
 660         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR) {
 661                 ethtool_link_ksettings_add_link_mode(ks, supported,
 662                                                      10000baseSR_Full);
 663                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 664                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 665                                                              10000baseSR_Full);
 666         }
 667         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) {
 668                 ethtool_link_ksettings_add_link_mode(ks, supported,
 669                                                      10000baseLR_Full);
 670                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 671                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 672                                                              10000baseLR_Full);
 673         }
 674         if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
 675             phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
 676             phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) {
 677                 ethtool_link_ksettings_add_link_mode(ks, supported,
 678                                                      1000baseX_Full);
 679                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 680                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 681                                                              1000baseX_Full);
 682         }
 683         /* Autoneg PHY types */
 684         if (phy_types & I40E_CAP_PHY_TYPE_SGMII ||
 685             phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4 ||
 686             phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
 687             phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4 ||
 688             phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
 689             phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR ||
 690             phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR ||
 691             phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR ||
 692             phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2 ||
 693             phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR ||
 694             phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR ||
 695             phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4 ||
 696             phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR ||
 697             phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU ||
 698             phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
 699             phy_types & I40E_CAP_PHY_TYPE_10GBASE_T ||
 700             phy_types & I40E_CAP_PHY_TYPE_5GBASE_T ||
 701             phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T ||
 702             phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL ||
 703             phy_types & I40E_CAP_PHY_TYPE_1000BASE_T ||
 704             phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
 705             phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
 706             phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX ||
 707             phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) {
 708                 ethtool_link_ksettings_add_link_mode(ks, supported,
 709                                                      Autoneg);
 710                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 711                                                      Autoneg);
 712         }
 713 }
 714
 715 /**
 716  * i40e_get_settings_link_up_fec - Get the FEC mode encoding from mask
 717  * @req_fec_info: mask request FEC info
 718  * @ks: ethtool ksettings to fill in
 719  **/
 720 static void i40e_get_settings_link_up_fec(u8 req_fec_info,
 721                                           struct ethtool_link_ksettings *ks)
 722 {
 723         ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE);
 724         ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);
 725         ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);
 726
 727         if ((I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) &&
 728             (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info)) {
 729                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 730                                                      FEC_NONE);
 731                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 732                                                      FEC_BASER);
 733                 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);
 734         } else if (I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) {
 735                 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);
 736         } else if (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info) {
 737                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 738                                                      FEC_BASER);
 739         } else {
 740                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 741                                                      FEC_NONE);
 742         }
 743 }
 744
 745 /**
 746  * i40e_get_settings_link_up - Get the Link settings for when link is up
 747  * @hw: hw structure
 748  * @ks: ethtool ksettings to fill in
 749  * @netdev: network interface device structure
 750  * @pf: pointer to physical function struct
 751  **/
 752 static void i40e_get_settings_link_up(struct i40e_hw *hw,
 753                                       struct ethtool_link_ksettings *ks,
 754                                       struct net_device *netdev,
 755                                       struct i40e_pf *pf)
 756 {
 757         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 758         struct ethtool_link_ksettings cap_ksettings;
 759         u32 link_speed = hw_link_info->link_speed;
 760
 761         /* Initialize supported and advertised settings based on phy settings */
 762         switch (hw_link_info->phy_type) {
 763         case I40E_PHY_TYPE_40GBASE_CR4:
 764         case I40E_PHY_TYPE_40GBASE_CR4_CU:
 765                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 766                 ethtool_link_ksettings_add_link_mode(ks, supported,
 767                                                      40000baseCR4_Full);
 768                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 769                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 770                                                      40000baseCR4_Full);
 771                 break;
 772         case I40E_PHY_TYPE_XLAUI:
 773         case I40E_PHY_TYPE_XLPPI:
 774         case I40E_PHY_TYPE_40GBASE_AOC:
 775                 ethtool_link_ksettings_add_link_mode(ks, supported,
 776                                                      40000baseCR4_Full);
 777                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 778                                                      40000baseCR4_Full);
 779                 break;
 780         case I40E_PHY_TYPE_40GBASE_SR4:
 781                 ethtool_link_ksettings_add_link_mode(ks, supported,
 782                                                      40000baseSR4_Full);
 783                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 784                                                      40000baseSR4_Full);
 785                 break;
 786         case I40E_PHY_TYPE_40GBASE_LR4:
 787                 ethtool_link_ksettings_add_link_mode(ks, supported,
 788                                                      40000baseLR4_Full);
 789                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 790                                                      40000baseLR4_Full);
 791                 break;
 792         case I40E_PHY_TYPE_25GBASE_SR:
 793         case I40E_PHY_TYPE_25GBASE_LR:
 794         case I40E_PHY_TYPE_10GBASE_SR:
 795         case I40E_PHY_TYPE_10GBASE_LR:
 796         case I40E_PHY_TYPE_1000BASE_SX:
 797         case I40E_PHY_TYPE_1000BASE_LX:
 798                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 799                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 800                 ethtool_link_ksettings_add_link_mode(ks, supported,
 801                                                      25000baseSR_Full);
 802                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 803                                                      25000baseSR_Full);
 804                 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
 805                 ethtool_link_ksettings_add_link_mode(ks, supported,
 806                                                      10000baseSR_Full);
 807                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 808                                                      10000baseSR_Full);
 809                 ethtool_link_ksettings_add_link_mode(ks, supported,
 810                                                      10000baseLR_Full);
 811                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 812                                                      10000baseLR_Full);
 813                 ethtool_link_ksettings_add_link_mode(ks, supported,
 814                                                      1000baseX_Full);
 815                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 816                                                      1000baseX_Full);
 817                 ethtool_link_ksettings_add_link_mode(ks, supported,
 818                                                      10000baseT_Full);
 819                 if (hw_link_info->module_type[2] &
 820                     I40E_MODULE_TYPE_1000BASE_SX ||
 821                     hw_link_info->module_type[2] &
 822                     I40E_MODULE_TYPE_1000BASE_LX) {
 823                         ethtool_link_ksettings_add_link_mode(ks, supported,
 824                                                              1000baseT_Full);
 825                         if (hw_link_info->requested_speeds &
 826                             I40E_LINK_SPEED_1GB)
 827                                 ethtool_link_ksettings_add_link_mode(
 828                                      ks, advertising, 1000baseT_Full);
 829                 }
 830                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 831                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 832                                                              10000baseT_Full);
 833                 break;
 834         case I40E_PHY_TYPE_10GBASE_T:
 835         case I40E_PHY_TYPE_5GBASE_T:
 836         case I40E_PHY_TYPE_2_5GBASE_T:
 837         case I40E_PHY_TYPE_1000BASE_T:
 838         case I40E_PHY_TYPE_100BASE_TX:
 839                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 840                 ethtool_link_ksettings_add_link_mode(ks, supported,
 841                                                      10000baseT_Full);
 842                 ethtool_link_ksettings_add_link_mode(ks, supported,
 843                                                      5000baseT_Full);
 844                 ethtool_link_ksettings_add_link_mode(ks, supported,
 845                                                      2500baseT_Full);
 846                 ethtool_link_ksettings_add_link_mode(ks, supported,
 847                                                      1000baseT_Full);
 848                 ethtool_link_ksettings_add_link_mode(ks, supported,
 849                                                      100baseT_Full);
 850                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 851                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 852                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 853                                                              10000baseT_Full);
 854                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB)
 855                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 856                                                              5000baseT_Full);
 857                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB)
 858                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 859                                                              2500baseT_Full);
 860                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 861                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 862                                                              1000baseT_Full);
 863                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
 864                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 865                                                              100baseT_Full);
 866                 break;
 867         case I40E_PHY_TYPE_1000BASE_T_OPTICAL:
 868                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 869                 ethtool_link_ksettings_add_link_mode(ks, supported,
 870                                                      1000baseT_Full);
 871                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 872                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 873                                                      1000baseT_Full);
 874                 break;
 875         case I40E_PHY_TYPE_10GBASE_CR1_CU:
 876         case I40E_PHY_TYPE_10GBASE_CR1:
 877                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 878                 ethtool_link_ksettings_add_link_mode(ks, supported,
 879                                                      10000baseT_Full);
 880                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 881                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 882                                                      10000baseT_Full);
 883                 break;
 884         case I40E_PHY_TYPE_XAUI:
 885         case I40E_PHY_TYPE_XFI:
 886         case I40E_PHY_TYPE_SFI:
 887         case I40E_PHY_TYPE_10GBASE_SFPP_CU:
 888         case I40E_PHY_TYPE_10GBASE_AOC:
 889                 ethtool_link_ksettings_add_link_mode(ks, supported,
 890                                                      10000baseT_Full);
 891                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 892                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 893                                                              10000baseT_Full);
 894                 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
 895                 break;
 896         case I40E_PHY_TYPE_SGMII:
 897                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 898                 ethtool_link_ksettings_add_link_mode(ks, supported,
 899                                                      1000baseT_Full);
 900                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 901                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 902                                                              1000baseT_Full);
 903                 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) {
 904                         ethtool_link_ksettings_add_link_mode(ks, supported,
 905                                                              100baseT_Full);
 906                         if (hw_link_info->requested_speeds &
 907                             I40E_LINK_SPEED_100MB)
 908                                 ethtool_link_ksettings_add_link_mode(
 909                                       ks, advertising, 100baseT_Full);
 910                 }
 911                 break;
 912         case I40E_PHY_TYPE_40GBASE_KR4:
 913         case I40E_PHY_TYPE_25GBASE_KR:
 914         case I40E_PHY_TYPE_20GBASE_KR2:
 915         case I40E_PHY_TYPE_10GBASE_KR:
 916         case I40E_PHY_TYPE_10GBASE_KX4:
 917         case I40E_PHY_TYPE_1000BASE_KX:
 918                 ethtool_link_ksettings_add_link_mode(ks, supported,
 919                                                      40000baseKR4_Full);
 920                 ethtool_link_ksettings_add_link_mode(ks, supported,
 921                                                      25000baseKR_Full);
 922                 ethtool_link_ksettings_add_link_mode(ks, supported,
 923                                                      20000baseKR2_Full);
 924                 ethtool_link_ksettings_add_link_mode(ks, supported,
 925                                                      10000baseKR_Full);
 926                 ethtool_link_ksettings_add_link_mode(ks, supported,
 927                                                      10000baseKX4_Full);
 928                 ethtool_link_ksettings_add_link_mode(ks, supported,
 929                                                      1000baseKX_Full);
 930                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 931                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 932                                                      40000baseKR4_Full);
 933                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 934                                                      25000baseKR_Full);
 935                 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
 936                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 937                                                      20000baseKR2_Full);
 938                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 939                                                      10000baseKR_Full);
 940                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 941                                                      10000baseKX4_Full);
 942                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 943                                                      1000baseKX_Full);
 944                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 945                 break;
 946         case I40E_PHY_TYPE_25GBASE_CR:
 947                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 948                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 949                 ethtool_link_ksettings_add_link_mode(ks, supported,
 950                                                      25000baseCR_Full);
 951                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 952                                                      25000baseCR_Full);
 953                 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
 954
 955                 break;
 956         case I40E_PHY_TYPE_25GBASE_AOC:
 957         case I40E_PHY_TYPE_25GBASE_ACC:
 958                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 959                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 960                 ethtool_link_ksettings_add_link_mode(ks, supported,
 961                                                      25000baseCR_Full);
 962                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 963                                                      25000baseCR_Full);
 964                 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
 965
 966                 ethtool_link_ksettings_add_link_mode(ks, supported,
 967                                                      10000baseCR_Full);
 968                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 969                                                      10000baseCR_Full);
 970                 break;
 971         default:
 972                 /* if we got here and link is up something bad is afoot */
 973                 netdev_info(netdev,
 974                             "WARNING: Link is up but PHY type 0x%x is not recognized.\n",
 975                             hw_link_info->phy_type);
 976         }
 977
 978         /* Now that we've worked out everything that could be supported by the
 979          * current PHY type, get what is supported by the NVM and intersect
 980          * them to get what is truly supported
 981          */
 982         memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings));
 983         i40e_phy_type_to_ethtool(pf, &cap_ksettings);
 984         ethtool_intersect_link_masks(ks, &cap_ksettings);
 985
 986         /* Set speed and duplex */
 987         switch (link_speed) {
 988         case I40E_LINK_SPEED_40GB:
 989                 ks->base.speed = SPEED_40000;
 990                 break;
 991         case I40E_LINK_SPEED_25GB:
 992                 ks->base.speed = SPEED_25000;
 993                 break;
 994         case I40E_LINK_SPEED_20GB:
 995                 ks->base.speed = SPEED_20000;
 996                 break;
 997         case I40E_LINK_SPEED_10GB:
 998                 ks->base.speed = SPEED_10000;
 999                 break;
1000         case I40E_LINK_SPEED_5GB:
1001                 ks->base.speed = SPEED_5000;
1002                 break;
1003         case I40E_LINK_SPEED_2_5GB:
1004                 ks->base.speed = SPEED_2500;
1005                 break;
1006         case I40E_LINK_SPEED_1GB:
1007                 ks->base.speed = SPEED_1000;
1008                 break;
1009         case I40E_LINK_SPEED_100MB:
1010                 ks->base.speed = SPEED_100;
1011                 break;
1012         default:
1013                 ks->base.speed = SPEED_UNKNOWN;
1014                 break;
1015         }
1016         ks->base.duplex = DUPLEX_FULL;
1017 }
1018
1019 /**
1020  * i40e_get_settings_link_down - Get the Link settings for when link is down
1021  * @hw: hw structure
1022  * @ks: ethtool ksettings to fill in
1023  * @pf: pointer to physical function struct
1024  *
1025  * Reports link settings that can be determined when link is down
1026  **/
1027 static void i40e_get_settings_link_down(struct i40e_hw *hw,
1028                                         struct ethtool_link_ksettings *ks,
1029                                         struct i40e_pf *pf)
1030 {
1031         /* link is down and the driver needs to fall back on
1032          * supported phy types to figure out what info to display
1033          */
1034         i40e_phy_type_to_ethtool(pf, ks);
1035
1036         /* With no link speed and duplex are unknown */
1037         ks->base.speed = SPEED_UNKNOWN;
1038         ks->base.duplex = DUPLEX_UNKNOWN;
1039 }
1040
1041 /**
1042  * i40e_get_link_ksettings - Get Link Speed and Duplex settings
1043  * @netdev: network interface device structure
1044  * @ks: ethtool ksettings
1045  *
1046  * Reports speed/duplex settings based on media_type
1047  **/
1048 static int i40e_get_link_ksettings(struct net_device *netdev,
1049                                    struct ethtool_link_ksettings *ks)
1050 {
1051         struct i40e_netdev_priv *np = netdev_priv(netdev);
1052         struct i40e_pf *pf = np->vsi->back;
1053         struct i40e_hw *hw = &pf->hw;
1054         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1055         bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
1056
1057         ethtool_link_ksettings_zero_link_mode(ks, supported);
1058         ethtool_link_ksettings_zero_link_mode(ks, advertising);
1059
1060         if (link_up)
1061                 i40e_get_settings_link_up(hw, ks, netdev, pf);
1062         else
1063                 i40e_get_settings_link_down(hw, ks, pf);
1064
1065         /* Now set the settings that don't rely on link being up/down */
1066         /* Set autoneg settings */
1067         ks->base.autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
1068                             AUTONEG_ENABLE : AUTONEG_DISABLE);
1069
1070         /* Set media type settings */
1071         switch (hw->phy.media_type) {
1072         case I40E_MEDIA_TYPE_BACKPLANE:
1073                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1074                 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane);
1075                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1076                 ethtool_link_ksettings_add_link_mode(ks, advertising,
1077                                                      Backplane);
1078                 ks->base.port = PORT_NONE;
1079                 break;
1080         case I40E_MEDIA_TYPE_BASET:
1081                 ethtool_link_ksettings_add_link_mode(ks, supported, TP);
1082                 ethtool_link_ksettings_add_link_mode(ks, advertising, TP);
1083                 ks->base.port = PORT_TP;
1084                 break;
1085         case I40E_MEDIA_TYPE_DA:
1086         case I40E_MEDIA_TYPE_CX4:
1087                 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
1088                 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
1089                 ks->base.port = PORT_DA;
1090                 break;
1091         case I40E_MEDIA_TYPE_FIBER:
1092                 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
1093                 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
1094                 ks->base.port = PORT_FIBRE;
1095                 break;
1096         case I40E_MEDIA_TYPE_UNKNOWN:
1097         default:
1098                 ks->base.port = PORT_OTHER;
1099                 break;
1100         }
1101
1102         /* Set flow control settings */
1103         ethtool_link_ksettings_add_link_mode(ks, supported, Pause);
1104
1105         switch (hw->fc.requested_mode) {
1106         case I40E_FC_FULL:
1107                 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
1108                 break;
1109         case I40E_FC_TX_PAUSE:
1110                 ethtool_link_ksettings_add_link_mode(ks, advertising,
1111                                                      Asym_Pause);
1112                 break;
1113         case I40E_FC_RX_PAUSE:
1114                 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
1115                 ethtool_link_ksettings_add_link_mode(ks, advertising,
1116                                                      Asym_Pause);
1117                 break;
1118         default:
1119                 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause);
1120                 ethtool_link_ksettings_del_link_mode(ks, advertising,
1121                                                      Asym_Pause);
1122                 break;
1123         }
1124
1125         return 0;
1126 }
1127
1128 /**
1129  * i40e_set_link_ksettings - Set Speed and Duplex
1130  * @netdev: network interface device structure
1131  * @ks: ethtool ksettings
1132  *
1133  * Set speed/duplex per media_types advertised/forced
1134  **/
1135 static int i40e_set_link_ksettings(struct net_device *netdev,
1136                                    const struct ethtool_link_ksettings *ks)
1137 {
1138         struct i40e_netdev_priv *np = netdev_priv(netdev);
1139         struct i40e_aq_get_phy_abilities_resp abilities;
1140         struct ethtool_link_ksettings safe_ks;
1141         struct ethtool_link_ksettings copy_ks;
1142         struct i40e_aq_set_phy_config config;
1143         struct i40e_pf *pf = np->vsi->back;
1144         struct i40e_vsi *vsi = np->vsi;
1145         struct i40e_hw *hw = &pf->hw;
1146         bool autoneg_changed = false;
1147         i40e_status status = 0;
1148         int timeout = 50;
1149         int err = 0;
1150         u8 autoneg;
1151
1152         /* Changing port settings is not supported if this isn't the
1153          * port's controlling PF
1154          */
1155         if (hw->partition_id != 1) {
1156                 i40e_partition_setting_complaint(pf);
1157                 return -EOPNOTSUPP;
1158         }
1159         if (vsi != pf->vsi[pf->lan_vsi])
1160                 return -EOPNOTSUPP;
1161         if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET &&
1162             hw->phy.media_type != I40E_MEDIA_TYPE_FIBER &&
1163             hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE &&
1164             hw->phy.media_type != I40E_MEDIA_TYPE_DA &&
1165             hw->phy.link_info.link_info & I40E_AQ_LINK_UP)
1166                 return -EOPNOTSUPP;
1167         if (hw->device_id == I40E_DEV_ID_KX_B ||
1168             hw->device_id == I40E_DEV_ID_KX_C ||
1169             hw->device_id == I40E_DEV_ID_20G_KR2 ||
1170             hw->device_id == I40E_DEV_ID_20G_KR2_A ||
1171             hw->device_id == I40E_DEV_ID_25G_B ||
1172             hw->device_id == I40E_DEV_ID_KX_X722) {
1173                 netdev_info(netdev, "Changing settings is not supported on backplane.\n");
1174                 return -EOPNOTSUPP;
1175         }
1176
1177         /* copy the ksettings to copy_ks to avoid modifying the origin */
1178         memcpy(&copy_ks, ks, sizeof(struct ethtool_link_ksettings));
1179
1180         /* save autoneg out of ksettings */
1181         autoneg = copy_ks.base.autoneg;
1182
1183         /* get our own copy of the bits to check against */
1184         memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings));
1185         safe_ks.base.cmd = copy_ks.base.cmd;
1186         safe_ks.base.link_mode_masks_nwords =
1187                 copy_ks.base.link_mode_masks_nwords;
1188         i40e_get_link_ksettings(netdev, &safe_ks);
1189
1190         /* Get link modes supported by hardware and check against modes
1191          * requested by the user.  Return an error if unsupported mode was set.
1192          */
1193         if (!bitmap_subset(copy_ks.link_modes.advertising,
1194                            safe_ks.link_modes.supported,
1195                            __ETHTOOL_LINK_MODE_MASK_NBITS))
1196                 return -EINVAL;
1197
1198         /* set autoneg back to what it currently is */
1199         copy_ks.base.autoneg = safe_ks.base.autoneg;
1200
1201         /* If copy_ks.base and safe_ks.base are not the same now, then they are
1202          * trying to set something that we do not support.
1203          */
1204         if (memcmp(&copy_ks.base, &safe_ks.base,
1205                    sizeof(struct ethtool_link_settings)))
1206                 return -EOPNOTSUPP;
1207
1208         while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) {
1209                 timeout--;
1210                 if (!timeout)
1211                         return -EBUSY;
1212                 usleep_range(1000, 2000);
1213         }
1214
1215         /* Get the current phy config */
1216         status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1217                                               NULL);
1218         if (status) {
1219                 err = -EAGAIN;
1220                 goto done;
1221         }
1222
1223         /* Copy abilities to config in case autoneg is not
1224          * set below
1225          */
1226         memset(&config, 0, sizeof(struct i40e_aq_set_phy_config));
1227         config.abilities = abilities.abilities;
1228
1229         /* Check autoneg */
1230         if (autoneg == AUTONEG_ENABLE) {
1231                 /* If autoneg was not already enabled */
1232                 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) {
1233                         /* If autoneg is not supported, return error */
1234                         if (!ethtool_link_ksettings_test_link_mode(&safe_ks,
1235                                                                    supported,
1236                                                                    Autoneg)) {
1237                                 netdev_info(netdev, "Autoneg not supported on this phy\n");
1238                                 err = -EINVAL;
1239                                 goto done;
1240                         }
1241                         /* Autoneg is allowed to change */
1242                         config.abilities = abilities.abilities |
1243                                            I40E_AQ_PHY_ENABLE_AN;
1244                         autoneg_changed = true;
1245                 }
1246         } else {
1247                 /* If autoneg is currently enabled */
1248                 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) {
1249                         /* If autoneg is supported 10GBASE_T is the only PHY
1250                          * that can disable it, so otherwise return error
1251                          */
1252                         if (ethtool_link_ksettings_test_link_mode(&safe_ks,
1253                                                                   supported,
1254                                                                   Autoneg) &&
1255                             hw->phy.link_info.phy_type !=
1256                             I40E_PHY_TYPE_10GBASE_T) {
1257                                 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
1258                                 err = -EINVAL;
1259                                 goto done;
1260                         }
1261                         /* Autoneg is allowed to change */
1262                         config.abilities = abilities.abilities &
1263                                            ~I40E_AQ_PHY_ENABLE_AN;
1264                         autoneg_changed = true;
1265                 }
1266         }
1267
1268         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1269                                                   100baseT_Full))
1270                 config.link_speed |= I40E_LINK_SPEED_100MB;
1271         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1272                                                   1000baseT_Full) ||
1273             ethtool_link_ksettings_test_link_mode(ks, advertising,
1274                                                   1000baseX_Full) ||
1275             ethtool_link_ksettings_test_link_mode(ks, advertising,
1276                                                   1000baseKX_Full))
1277                 config.link_speed |= I40E_LINK_SPEED_1GB;
1278         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1279                                                   10000baseT_Full) ||
1280             ethtool_link_ksettings_test_link_mode(ks, advertising,
1281                                                   10000baseKX4_Full) ||
1282             ethtool_link_ksettings_test_link_mode(ks, advertising,
1283                                                   10000baseKR_Full) ||
1284             ethtool_link_ksettings_test_link_mode(ks, advertising,
1285                                                   10000baseCR_Full) ||
1286             ethtool_link_ksettings_test_link_mode(ks, advertising,
1287                                                   10000baseSR_Full) ||
1288             ethtool_link_ksettings_test_link_mode(ks, advertising,
1289                                                   10000baseLR_Full))
1290                 config.link_speed |= I40E_LINK_SPEED_10GB;
1291         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1292                                                   2500baseT_Full))
1293                 config.link_speed |= I40E_LINK_SPEED_2_5GB;
1294         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1295                                                   5000baseT_Full))
1296                 config.link_speed |= I40E_LINK_SPEED_5GB;
1297         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1298                                                   20000baseKR2_Full))
1299                 config.link_speed |= I40E_LINK_SPEED_20GB;
1300         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1301                                                   25000baseCR_Full) ||
1302             ethtool_link_ksettings_test_link_mode(ks, advertising,
1303                                                   25000baseKR_Full) ||
1304             ethtool_link_ksettings_test_link_mode(ks, advertising,
1305                                                   25000baseSR_Full))
1306                 config.link_speed |= I40E_LINK_SPEED_25GB;
1307         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1308                                                   40000baseKR4_Full) ||
1309             ethtool_link_ksettings_test_link_mode(ks, advertising,
1310                                                   40000baseCR4_Full) ||
1311             ethtool_link_ksettings_test_link_mode(ks, advertising,
1312                                                   40000baseSR4_Full) ||
1313             ethtool_link_ksettings_test_link_mode(ks, advertising,
1314                                                   40000baseLR4_Full))
1315                 config.link_speed |= I40E_LINK_SPEED_40GB;
1316
1317         /* If speed didn't get set, set it to what it currently is.
1318          * This is needed because if advertise is 0 (as it is when autoneg
1319          * is disabled) then speed won't get set.
1320          */
1321         if (!config.link_speed)
1322                 config.link_speed = abilities.link_speed;
1323         if (autoneg_changed || abilities.link_speed != config.link_speed) {
1324                 /* copy over the rest of the abilities */
1325                 config.phy_type = abilities.phy_type;
1326                 config.phy_type_ext = abilities.phy_type_ext;
1327                 config.eee_capability = abilities.eee_capability;
1328                 config.eeer = abilities.eeer_val;
1329                 config.low_power_ctrl = abilities.d3_lpan;
1330                 config.fec_config = abilities.fec_cfg_curr_mod_ext_info &
1331                                     I40E_AQ_PHY_FEC_CONFIG_MASK;
1332
1333                 /* save the requested speeds */
1334                 hw->phy.link_info.requested_speeds = config.link_speed;
1335                 /* set link and auto negotiation so changes take effect */
1336                 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
1337                 /* If link is up put link down */
1338                 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) {
1339                         /* Tell the OS link is going down, the link will go
1340                          * back up when fw says it is ready asynchronously
1341                          */
1342                         i40e_print_link_message(vsi, false);
1343                         netif_carrier_off(netdev);
1344                         netif_tx_stop_all_queues(netdev);
1345                 }
1346
1347                 /* make the aq call */
1348                 status = i40e_aq_set_phy_config(hw, &config, NULL);
1349                 if (status) {
1350                         netdev_info(netdev,
1351                                     "Set phy config failed, err %s aq_err %s\n",
1352                                     i40e_stat_str(hw, status),
1353                                     i40e_aq_str(hw, hw->aq.asq_last_status));
1354                         err = -EAGAIN;
1355                         goto done;
1356                 }
1357
1358                 status = i40e_update_link_info(hw);
1359                 if (status)
1360                         netdev_dbg(netdev,
1361                                    "Updating link info failed with err %s aq_err %s\n",
1362                                    i40e_stat_str(hw, status),
1363                                    i40e_aq_str(hw, hw->aq.asq_last_status));
1364
1365         } else {
1366                 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
1367         }
1368
1369 done:
1370         clear_bit(__I40E_CONFIG_BUSY, pf->state);
1371
1372         return err;
1373 }
1374
1375 static int i40e_set_fec_cfg(struct net_device *netdev, u8 fec_cfg)
1376 {
1377         struct i40e_netdev_priv *np = netdev_priv(netdev);
1378         struct i40e_aq_get_phy_abilities_resp abilities;
1379         struct i40e_pf *pf = np->vsi->back;
1380         struct i40e_hw *hw = &pf->hw;
1381         i40e_status status = 0;
1382         u32 flags = 0;
1383         int err = 0;
1384
1385         flags = READ_ONCE(pf->flags);
1386         i40e_set_fec_in_flags(fec_cfg, &flags);
1387
1388         /* Get the current phy config */
1389         memset(&abilities, 0, sizeof(abilities));
1390         status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1391                                               NULL);
1392         if (status) {
1393                 err = -EAGAIN;
1394                 goto done;
1395         }
1396
1397         if (abilities.fec_cfg_curr_mod_ext_info != fec_cfg) {
1398                 struct i40e_aq_set_phy_config config;
1399
1400                 memset(&config, 0, sizeof(config));
1401                 config.phy_type = abilities.phy_type;
1402                 config.abilities = abilities.abilities;
1403                 config.phy_type_ext = abilities.phy_type_ext;
1404                 config.link_speed = abilities.link_speed;
1405                 config.eee_capability = abilities.eee_capability;
1406                 config.eeer = abilities.eeer_val;
1407                 config.low_power_ctrl = abilities.d3_lpan;
1408                 config.fec_config = fec_cfg & I40E_AQ_PHY_FEC_CONFIG_MASK;
1409                 status = i40e_aq_set_phy_config(hw, &config, NULL);
1410                 if (status) {
1411                         netdev_info(netdev,
1412                                     "Set phy config failed, err %s aq_err %s\n",
1413                                     i40e_stat_str(hw, status),
1414                                     i40e_aq_str(hw, hw->aq.asq_last_status));
1415                         err = -EAGAIN;
1416                         goto done;
1417                 }
1418                 pf->flags = flags;
1419                 status = i40e_update_link_info(hw);
1420                 if (status)
1421                         /* debug level message only due to relation to the link
1422                          * itself rather than to the FEC settings
1423                          * (e.g. no physical connection etc.)
1424                          */
1425                         netdev_dbg(netdev,
1426                                    "Updating link info failed with err %s aq_err %s\n",
1427                                    i40e_stat_str(hw, status),
1428                                    i40e_aq_str(hw, hw->aq.asq_last_status));
1429         }
1430
1431 done:
1432         return err;
1433 }
1434
1435 static int i40e_get_fec_param(struct net_device *netdev,
1436                               struct ethtool_fecparam *fecparam)
1437 {
1438         struct i40e_netdev_priv *np = netdev_priv(netdev);
1439         struct i40e_aq_get_phy_abilities_resp abilities;
1440         struct i40e_pf *pf = np->vsi->back;
1441         struct i40e_hw *hw = &pf->hw;
1442         i40e_status status = 0;
1443         int err = 0;
1444         u8 fec_cfg;
1445
1446         /* Get the current phy config */
1447         memset(&abilities, 0, sizeof(abilities));
1448         status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1449                                               NULL);
1450         if (status) {
1451                 err = -EAGAIN;
1452                 goto done;
1453         }
1454
1455         fecparam->fec = 0;
1456         fec_cfg = abilities.fec_cfg_curr_mod_ext_info;
1457         if (fec_cfg & I40E_AQ_SET_FEC_AUTO)
1458                 fecparam->fec |= ETHTOOL_FEC_AUTO;
1459         else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_RS |
1460                  I40E_AQ_SET_FEC_ABILITY_RS))
1461                 fecparam->fec |= ETHTOOL_FEC_RS;
1462         else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_KR |
1463                  I40E_AQ_SET_FEC_ABILITY_KR))
1464                 fecparam->fec |= ETHTOOL_FEC_BASER;
1465         if (fec_cfg == 0)
1466                 fecparam->fec |= ETHTOOL_FEC_OFF;
1467
1468         if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_KR_ENA)
1469                 fecparam->active_fec = ETHTOOL_FEC_BASER;
1470         else if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_RS_ENA)
1471                 fecparam->active_fec = ETHTOOL_FEC_RS;
1472         else
1473                 fecparam->active_fec = ETHTOOL_FEC_OFF;
1474 done:
1475         return err;
1476 }
1477
1478 static int i40e_set_fec_param(struct net_device *netdev,
1479                               struct ethtool_fecparam *fecparam)
1480 {
1481         struct i40e_netdev_priv *np = netdev_priv(netdev);
1482         struct i40e_pf *pf = np->vsi->back;
1483         struct i40e_hw *hw = &pf->hw;
1484         u8 fec_cfg = 0;
1485
1486         if (hw->device_id != I40E_DEV_ID_25G_SFP28 &&
1487             hw->device_id != I40E_DEV_ID_25G_B &&
1488             hw->device_id != I40E_DEV_ID_KX_X722)
1489                 return -EPERM;
1490
1491         if (hw->mac.type == I40E_MAC_X722 &&
1492             !(hw->flags & I40E_HW_FLAG_X722_FEC_REQUEST_CAPABLE)) {
1493                 netdev_err(netdev, "Setting FEC encoding not supported by firmware. Please update the NVM image.\n");
1494                 return -EOPNOTSUPP;
1495         }
1496
1497         switch (fecparam->fec) {
1498         case ETHTOOL_FEC_AUTO:
1499                 fec_cfg = I40E_AQ_SET_FEC_AUTO;
1500                 break;
1501         case ETHTOOL_FEC_RS:
1502                 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS |
1503                              I40E_AQ_SET_FEC_ABILITY_RS);
1504                 break;
1505         case ETHTOOL_FEC_BASER:
1506                 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR |
1507                              I40E_AQ_SET_FEC_ABILITY_KR);
1508                 break;
1509         case ETHTOOL_FEC_OFF:
1510         case ETHTOOL_FEC_NONE:
1511                 fec_cfg = 0;
1512                 break;
1513         default:
1514                 dev_warn(&pf->pdev->dev, "Unsupported FEC mode: %d",
1515                          fecparam->fec);
1516                 return -EINVAL;
1517         }
1518
1519         return i40e_set_fec_cfg(netdev, fec_cfg);
1520 }
1521
1522 static int i40e_nway_reset(struct net_device *netdev)
1523 {
1524         /* restart autonegotiation */
1525         struct i40e_netdev_priv *np = netdev_priv(netdev);
1526         struct i40e_pf *pf = np->vsi->back;
1527         struct i40e_hw *hw = &pf->hw;
1528         bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP;
1529         i40e_status ret = 0;
1530
1531         ret = i40e_aq_set_link_restart_an(hw, link_up, NULL);
1532         if (ret) {
1533                 netdev_info(netdev, "link restart failed, err %s aq_err %s\n",
1534                             i40e_stat_str(hw, ret),
1535                             i40e_aq_str(hw, hw->aq.asq_last_status));
1536                 return -EIO;
1537         }
1538
1539         return 0;
1540 }
1541
1542 /**
1543  * i40e_get_pauseparam -  Get Flow Control status
1544  * @netdev: netdevice structure
1545  * @pause: buffer to return pause parameters
1546  *
1547  * Return tx/rx-pause status
1548  **/
1549 static void i40e_get_pauseparam(struct net_device *netdev,
1550                                 struct ethtool_pauseparam *pause)
1551 {
1552         struct i40e_netdev_priv *np = netdev_priv(netdev);
1553         struct i40e_pf *pf = np->vsi->back;
1554         struct i40e_hw *hw = &pf->hw;
1555         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1556         struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
1557
1558         pause->autoneg =
1559                 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
1560                   AUTONEG_ENABLE : AUTONEG_DISABLE);
1561
1562         /* PFC enabled so report LFC as off */
1563         if (dcbx_cfg->pfc.pfcenable) {
1564                 pause->rx_pause = 0;
1565                 pause->tx_pause = 0;
1566                 return;
1567         }
1568
1569         if (hw->fc.current_mode == I40E_FC_RX_PAUSE) {
1570                 pause->rx_pause = 1;
1571         } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) {
1572                 pause->tx_pause = 1;
1573         } else if (hw->fc.current_mode == I40E_FC_FULL) {
1574                 pause->rx_pause = 1;
1575                 pause->tx_pause = 1;
1576         }
1577 }
1578
1579 /**
1580  * i40e_set_pauseparam - Set Flow Control parameter
1581  * @netdev: network interface device structure
1582  * @pause: return tx/rx flow control status
1583  **/
1584 static int i40e_set_pauseparam(struct net_device *netdev,
1585                                struct ethtool_pauseparam *pause)
1586 {
1587         struct i40e_netdev_priv *np = netdev_priv(netdev);
1588         struct i40e_pf *pf = np->vsi->back;
1589         struct i40e_vsi *vsi = np->vsi;
1590         struct i40e_hw *hw = &pf->hw;
1591         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1592         struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
1593         bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
1594         i40e_status status;
1595         u8 aq_failures;
1596         int err = 0;
1597         u32 is_an;
1598
1599         /* Changing the port's flow control is not supported if this isn't the
1600          * port's controlling PF
1601          */
1602         if (hw->partition_id != 1) {
1603                 i40e_partition_setting_complaint(pf);
1604                 return -EOPNOTSUPP;
1605         }
1606
1607         if (vsi != pf->vsi[pf->lan_vsi])
1608                 return -EOPNOTSUPP;
1609
1610         is_an = hw_link_info->an_info & I40E_AQ_AN_COMPLETED;
1611         if (pause->autoneg != is_an) {
1612                 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
1613                 return -EOPNOTSUPP;
1614         }
1615
1616         /* If we have link and don't have autoneg */
1617         if (!test_bit(__I40E_DOWN, pf->state) && !is_an) {
1618                 /* Send message that it might not necessarily work*/
1619                 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
1620         }
1621
1622         if (dcbx_cfg->pfc.pfcenable) {
1623                 netdev_info(netdev,
1624                             "Priority flow control enabled. Cannot set link flow control.\n");
1625                 return -EOPNOTSUPP;
1626         }
1627
1628         if (pause->rx_pause && pause->tx_pause)
1629                 hw->fc.requested_mode = I40E_FC_FULL;
1630         else if (pause->rx_pause && !pause->tx_pause)
1631                 hw->fc.requested_mode = I40E_FC_RX_PAUSE;
1632         else if (!pause->rx_pause && pause->tx_pause)
1633                 hw->fc.requested_mode = I40E_FC_TX_PAUSE;
1634         else if (!pause->rx_pause && !pause->tx_pause)
1635                 hw->fc.requested_mode = I40E_FC_NONE;
1636         else
1637                 return -EINVAL;
1638
1639         /* Tell the OS link is going down, the link will go back up when fw
1640          * says it is ready asynchronously
1641          */
1642         i40e_print_link_message(vsi, false);
1643         netif_carrier_off(netdev);
1644         netif_tx_stop_all_queues(netdev);
1645
1646         /* Set the fc mode and only restart an if link is up*/
1647         status = i40e_set_fc(hw, &aq_failures, link_up);
1648
1649         if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) {
1650                 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n",
1651                             i40e_stat_str(hw, status),
1652                             i40e_aq_str(hw, hw->aq.asq_last_status));
1653                 err = -EAGAIN;
1654         }
1655         if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) {
1656                 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n",
1657                             i40e_stat_str(hw, status),
1658                             i40e_aq_str(hw, hw->aq.asq_last_status));
1659                 err = -EAGAIN;
1660         }
1661         if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) {
1662                 netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n",
1663                             i40e_stat_str(hw, status),
1664                             i40e_aq_str(hw, hw->aq.asq_last_status));
1665                 err = -EAGAIN;
1666         }
1667
1668         if (!test_bit(__I40E_DOWN, pf->state) && is_an) {
1669                 /* Give it a little more time to try to come back */
1670                 msleep(75);
1671                 if (!test_bit(__I40E_DOWN, pf->state))
1672                         return i40e_nway_reset(netdev);
1673         }
1674
1675         return err;
1676 }
1677
1678 static u32 i40e_get_msglevel(struct net_device *netdev)
1679 {
1680         struct i40e_netdev_priv *np = netdev_priv(netdev);
1681         struct i40e_pf *pf = np->vsi->back;
1682         u32 debug_mask = pf->hw.debug_mask;
1683
1684         if (debug_mask)
1685                 netdev_info(netdev, "i40e debug_mask: 0x%08X\n", debug_mask);
1686
1687         return pf->msg_enable;
1688 }
1689
1690 static void i40e_set_msglevel(struct net_device *netdev, u32 data)
1691 {
1692         struct i40e_netdev_priv *np = netdev_priv(netdev);
1693         struct i40e_pf *pf = np->vsi->back;
1694
1695         if (I40E_DEBUG_USER & data)
1696                 pf->hw.debug_mask = data;
1697         else
1698                 pf->msg_enable = data;
1699 }
1700
1701 static int i40e_get_regs_len(struct net_device *netdev)
1702 {
1703         int reg_count = 0;
1704         int i;
1705
1706         for (i = 0; i40e_reg_list[i].offset != 0; i++)
1707                 reg_count += i40e_reg_list[i].elements;
1708
1709         return reg_count * sizeof(u32);
1710 }
1711
1712 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
1713                           void *p)
1714 {
1715         struct i40e_netdev_priv *np = netdev_priv(netdev);
1716         struct i40e_pf *pf = np->vsi->back;
1717         struct i40e_hw *hw = &pf->hw;
1718         u32 *reg_buf = p;
1719         unsigned int i, j, ri;
1720         u32 reg;
1721
1722         /* Tell ethtool which driver-version-specific regs output we have.
1723          *
1724          * At some point, if we have ethtool doing special formatting of
1725          * this data, it will rely on this version number to know how to
1726          * interpret things.  Hence, this needs to be updated if/when the
1727          * diags register table is changed.
1728          */
1729         regs->version = 1;
1730
1731         /* loop through the diags reg table for what to print */
1732         ri = 0;
1733         for (i = 0; i40e_reg_list[i].offset != 0; i++) {
1734                 for (j = 0; j < i40e_reg_list[i].elements; j++) {
1735                         reg = i40e_reg_list[i].offset
1736                                 + (j * i40e_reg_list[i].stride);
1737                         reg_buf[ri++] = rd32(hw, reg);
1738                 }
1739         }
1740
1741 }
1742
1743 static int i40e_get_eeprom(struct net_device *netdev,
1744                            struct ethtool_eeprom *eeprom, u8 *bytes)
1745 {
1746         struct i40e_netdev_priv *np = netdev_priv(netdev);
1747         struct i40e_hw *hw = &np->vsi->back->hw;
1748         struct i40e_pf *pf = np->vsi->back;
1749         int ret_val = 0, len, offset;
1750         u8 *eeprom_buff;
1751         u16 i, sectors;
1752         bool last;
1753         u32 magic;
1754
1755 #define I40E_NVM_SECTOR_SIZE  4096
1756         if (eeprom->len == 0)
1757                 return -EINVAL;
1758
1759         /* check for NVMUpdate access method */
1760         magic = hw->vendor_id | (hw->device_id << 16);
1761         if (eeprom->magic && eeprom->magic != magic) {
1762                 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1763                 int errno = 0;
1764
1765                 /* make sure it is the right magic for NVMUpdate */
1766                 if ((eeprom->magic >> 16) != hw->device_id)
1767                         errno = -EINVAL;
1768                 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
1769                          test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
1770                         errno = -EBUSY;
1771                 else
1772                         ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1773
1774                 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1775                         dev_info(&pf->pdev->dev,
1776                                  "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1777                                  ret_val, hw->aq.asq_last_status, errno,
1778                                  (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1779                                  cmd->offset, cmd->data_size);
1780
1781                 return errno;
1782         }
1783
1784         /* normal ethtool get_eeprom support */
1785         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
1786
1787         eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL);
1788         if (!eeprom_buff)
1789                 return -ENOMEM;
1790
1791         ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
1792         if (ret_val) {
1793                 dev_info(&pf->pdev->dev,
1794                          "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1795                          ret_val, hw->aq.asq_last_status);
1796                 goto free_buff;
1797         }
1798
1799         sectors = eeprom->len / I40E_NVM_SECTOR_SIZE;
1800         sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0;
1801         len = I40E_NVM_SECTOR_SIZE;
1802         last = false;
1803         for (i = 0; i < sectors; i++) {
1804                 if (i == (sectors - 1)) {
1805                         len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i);
1806                         last = true;
1807                 }
1808                 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i),
1809                 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len,
1810                                 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i),
1811                                 last, NULL);
1812                 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) {
1813                         dev_info(&pf->pdev->dev,
1814                                  "read NVM failed, invalid offset 0x%x\n",
1815                                  offset);
1816                         break;
1817                 } else if (ret_val &&
1818                            hw->aq.asq_last_status == I40E_AQ_RC_EACCES) {
1819                         dev_info(&pf->pdev->dev,
1820                                  "read NVM failed, access, offset 0x%x\n",
1821                                  offset);
1822                         break;
1823                 } else if (ret_val) {
1824                         dev_info(&pf->pdev->dev,
1825                                  "read NVM failed offset %d err=%d status=0x%x\n",
1826                                  offset, ret_val, hw->aq.asq_last_status);
1827                         break;
1828                 }
1829         }
1830
1831         i40e_release_nvm(hw);
1832         memcpy(bytes, (u8 *)eeprom_buff, eeprom->len);
1833 free_buff:
1834         kfree(eeprom_buff);
1835         return ret_val;
1836 }
1837
1838 static int i40e_get_eeprom_len(struct net_device *netdev)
1839 {
1840         struct i40e_netdev_priv *np = netdev_priv(netdev);
1841         struct i40e_hw *hw = &np->vsi->back->hw;
1842         u32 val;
1843
1844 #define X722_EEPROM_SCOPE_LIMIT 0x5B9FFF
1845         if (hw->mac.type == I40E_MAC_X722) {
1846                 val = X722_EEPROM_SCOPE_LIMIT + 1;
1847                 return val;
1848         }
1849         val = (rd32(hw, I40E_GLPCI_LBARCTRL)
1850                 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK)
1851                 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT;
1852         /* register returns value in power of 2, 64Kbyte chunks. */
1853         val = (64 * 1024) * BIT(val);
1854         return val;
1855 }
1856
1857 static int i40e_set_eeprom(struct net_device *netdev,
1858                            struct ethtool_eeprom *eeprom, u8 *bytes)
1859 {
1860         struct i40e_netdev_priv *np = netdev_priv(netdev);
1861         struct i40e_hw *hw = &np->vsi->back->hw;
1862         struct i40e_pf *pf = np->vsi->back;
1863         struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1864         int ret_val = 0;
1865         int errno = 0;
1866         u32 magic;
1867
1868         /* normal ethtool set_eeprom is not supported */
1869         magic = hw->vendor_id | (hw->device_id << 16);
1870         if (eeprom->magic == magic)
1871                 errno = -EOPNOTSUPP;
1872         /* check for NVMUpdate access method */
1873         else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id)
1874                 errno = -EINVAL;
1875         else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
1876                  test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
1877                 errno = -EBUSY;
1878         else
1879                 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1880
1881         if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1882                 dev_info(&pf->pdev->dev,
1883                          "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1884                          ret_val, hw->aq.asq_last_status, errno,
1885                          (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1886                          cmd->offset, cmd->data_size);
1887
1888         return errno;
1889 }
1890
1891 static void i40e_get_drvinfo(struct net_device *netdev,
1892                              struct ethtool_drvinfo *drvinfo)
1893 {
1894         struct i40e_netdev_priv *np = netdev_priv(netdev);
1895         struct i40e_vsi *vsi = np->vsi;
1896         struct i40e_pf *pf = vsi->back;
1897
1898         strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver));
1899         strlcpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw),
1900                 sizeof(drvinfo->fw_version));
1901         strlcpy(drvinfo->bus_info, pci_name(pf->pdev),
1902                 sizeof(drvinfo->bus_info));
1903         drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN;
1904         if (pf->hw.pf_id == 0)
1905                 drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN;
1906 }
1907
1908 static void i40e_get_ringparam(struct net_device *netdev,
1909                                struct ethtool_ringparam *ring)
1910 {
1911         struct i40e_netdev_priv *np = netdev_priv(netdev);
1912         struct i40e_pf *pf = np->vsi->back;
1913         struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
1914
1915         ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1916         ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1917         ring->rx_mini_max_pending = 0;
1918         ring->rx_jumbo_max_pending = 0;
1919         ring->rx_pending = vsi->rx_rings[0]->count;
1920         ring->tx_pending = vsi->tx_rings[0]->count;
1921         ring->rx_mini_pending = 0;
1922         ring->rx_jumbo_pending = 0;
1923 }
1924
1925 static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index)
1926 {
1927         if (i40e_enabled_xdp_vsi(vsi)) {
1928                 return index < vsi->num_queue_pairs ||
1929                         (index >= vsi->alloc_queue_pairs &&
1930                          index < vsi->alloc_queue_pairs + vsi->num_queue_pairs);
1931         }
1932
1933         return index < vsi->num_queue_pairs;
1934 }
1935
1936 static int i40e_set_ringparam(struct net_device *netdev,
1937                               struct ethtool_ringparam *ring)
1938 {
1939         struct i40e_ring *tx_rings = NULL, *rx_rings = NULL;
1940         struct i40e_netdev_priv *np = netdev_priv(netdev);
1941         struct i40e_hw *hw = &np->vsi->back->hw;
1942         struct i40e_vsi *vsi = np->vsi;
1943         struct i40e_pf *pf = vsi->back;
1944         u32 new_rx_count, new_tx_count;
1945         u16 tx_alloc_queue_pairs;
1946         int timeout = 50;
1947         int i, err = 0;
1948
1949         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
1950                 return -EINVAL;
1951
1952         if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1953             ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS ||
1954             ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1955             ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) {
1956                 netdev_info(netdev,
1957                             "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n",
1958                             ring->tx_pending, ring->rx_pending,
1959                             I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS);
1960                 return -EINVAL;
1961         }
1962
1963         new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1964         new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1965
1966         /* if nothing to do return success */
1967         if ((new_tx_count == vsi->tx_rings[0]->count) &&
1968             (new_rx_count == vsi->rx_rings[0]->count))
1969                 return 0;
1970
1971         /* If there is a AF_XDP page pool attached to any of Rx rings,
1972          * disallow changing the number of descriptors -- regardless
1973          * if the netdev is running or not.
1974          */
1975         if (i40e_xsk_any_rx_ring_enabled(vsi))
1976                 return -EBUSY;
1977
1978         while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) {
1979                 timeout--;
1980                 if (!timeout)
1981                         return -EBUSY;
1982                 usleep_range(1000, 2000);
1983         }
1984
1985         if (!netif_running(vsi->netdev)) {
1986                 /* simple case - set for the next time the netdev is started */
1987                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1988                         vsi->tx_rings[i]->count = new_tx_count;
1989                         vsi->rx_rings[i]->count = new_rx_count;
1990                         if (i40e_enabled_xdp_vsi(vsi))
1991                                 vsi->xdp_rings[i]->count = new_tx_count;
1992                 }
1993                 vsi->num_tx_desc = new_tx_count;
1994                 vsi->num_rx_desc = new_rx_count;
1995                 goto done;
1996         }
1997
1998         /* We can't just free everything and then setup again,
1999          * because the ISRs in MSI-X mode get passed pointers
2000          * to the Tx and Rx ring structs.
2001          */
2002
2003         /* alloc updated Tx and XDP Tx resources */
2004         tx_alloc_queue_pairs = vsi->alloc_queue_pairs *
2005                                (i40e_enabled_xdp_vsi(vsi) ? 2 : 1);
2006         if (new_tx_count != vsi->tx_rings[0]->count) {
2007                 netdev_info(netdev,
2008                             "Changing Tx descriptor count from %d to %d.\n",
2009                             vsi->tx_rings[0]->count, new_tx_count);
2010                 tx_rings = kcalloc(tx_alloc_queue_pairs,
2011                                    sizeof(struct i40e_ring), GFP_KERNEL);
2012                 if (!tx_rings) {
2013                         err = -ENOMEM;
2014                         goto done;
2015                 }
2016
2017                 for (i = 0; i < tx_alloc_queue_pairs; i++) {
2018                         if (!i40e_active_tx_ring_index(vsi, i))
2019                                 continue;
2020
2021                         tx_rings[i] = *vsi->tx_rings[i];
2022                         tx_rings[i].count = new_tx_count;
2023                         /* the desc and bi pointers will be reallocated in the
2024                          * setup call
2025                          */
2026                         tx_rings[i].desc = NULL;
2027                         tx_rings[i].rx_bi = NULL;
2028                         err = i40e_setup_tx_descriptors(&tx_rings[i]);
2029                         if (err) {
2030                                 while (i) {
2031                                         i--;
2032                                         if (!i40e_active_tx_ring_index(vsi, i))
2033                                                 continue;
2034                                         i40e_free_tx_resources(&tx_rings[i]);
2035                                 }
2036                                 kfree(tx_rings);
2037                                 tx_rings = NULL;
2038
2039                                 goto done;
2040                         }
2041                 }
2042         }
2043
2044         /* alloc updated Rx resources */
2045         if (new_rx_count != vsi->rx_rings[0]->count) {
2046                 netdev_info(netdev,
2047                             "Changing Rx descriptor count from %d to %d\n",
2048                             vsi->rx_rings[0]->count, new_rx_count);
2049                 rx_rings = kcalloc(vsi->alloc_queue_pairs,
2050                                    sizeof(struct i40e_ring), GFP_KERNEL);
2051                 if (!rx_rings) {
2052                         err = -ENOMEM;
2053                         goto free_tx;
2054                 }
2055
2056                 for (i = 0; i < vsi->num_queue_pairs; i++) {
2057                         u16 unused;
2058
2059                         /* clone ring and setup updated count */
2060                         rx_rings[i] = *vsi->rx_rings[i];
2061                         rx_rings[i].count = new_rx_count;
2062                         /* the desc and bi pointers will be reallocated in the
2063                          * setup call
2064                          */
2065                         rx_rings[i].desc = NULL;
2066                         rx_rings[i].rx_bi = NULL;
2067                         /* Clear cloned XDP RX-queue info before setup call */
2068                         memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq));
2069                         /* this is to allow wr32 to have something to write to
2070                          * during early allocation of Rx buffers
2071                          */
2072                         rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS;
2073                         err = i40e_setup_rx_descriptors(&rx_rings[i]);
2074                         if (err)
2075                                 goto rx_unwind;
2076                         err = i40e_alloc_rx_bi(&rx_rings[i]);
2077                         if (err)
2078                                 goto rx_unwind;
2079
2080                         /* now allocate the Rx buffers to make sure the OS
2081                          * has enough memory, any failure here means abort
2082                          */
2083                         unused = I40E_DESC_UNUSED(&rx_rings[i]);
2084                         err = i40e_alloc_rx_buffers(&rx_rings[i], unused);
2085 rx_unwind:
2086                         if (err) {
2087                                 do {
2088                                         i40e_free_rx_resources(&rx_rings[i]);
2089                                 } while (i--);
2090                                 kfree(rx_rings);
2091                                 rx_rings = NULL;
2092
2093                                 goto free_tx;
2094                         }
2095                 }
2096         }
2097
2098         /* Bring interface down, copy in the new ring info,
2099          * then restore the interface
2100          */
2101         i40e_down(vsi);
2102
2103         if (tx_rings) {
2104                 for (i = 0; i < tx_alloc_queue_pairs; i++) {
2105                         if (i40e_active_tx_ring_index(vsi, i)) {
2106                                 i40e_free_tx_resources(vsi->tx_rings[i]);
2107                                 *vsi->tx_rings[i] = tx_rings[i];
2108                         }
2109                 }
2110                 kfree(tx_rings);
2111                 tx_rings = NULL;
2112         }
2113
2114         if (rx_rings) {
2115                 for (i = 0; i < vsi->num_queue_pairs; i++) {
2116                         i40e_free_rx_resources(vsi->rx_rings[i]);
2117                         /* get the real tail offset */
2118                         rx_rings[i].tail = vsi->rx_rings[i]->tail;
2119                         /* this is to fake out the allocation routine
2120                          * into thinking it has to realloc everything
2121                          * but the recycling logic will let us re-use
2122                          * the buffers allocated above
2123                          */
2124                         rx_rings[i].next_to_use = 0;
2125                         rx_rings[i].next_to_clean = 0;
2126                         rx_rings[i].next_to_alloc = 0;
2127                         /* do a struct copy */
2128                         *vsi->rx_rings[i] = rx_rings[i];
2129                 }
2130                 kfree(rx_rings);
2131                 rx_rings = NULL;
2132         }
2133
2134         vsi->num_tx_desc = new_tx_count;
2135         vsi->num_rx_desc = new_rx_count;
2136         i40e_up(vsi);
2137
2138 free_tx:
2139         /* error cleanup if the Rx allocations failed after getting Tx */
2140         if (tx_rings) {
2141                 for (i = 0; i < tx_alloc_queue_pairs; i++) {
2142                         if (i40e_active_tx_ring_index(vsi, i))
2143                                 i40e_free_tx_resources(vsi->tx_rings[i]);
2144                 }
2145                 kfree(tx_rings);
2146                 tx_rings = NULL;
2147         }
2148
2149 done:
2150         clear_bit(__I40E_CONFIG_BUSY, pf->state);
2151
2152         return err;
2153 }
2154
2155 /**
2156  * i40e_get_stats_count - return the stats count for a device
2157  * @netdev: the netdev to return the count for
2158  *
2159  * Returns the total number of statistics for this netdev. Note that even
2160  * though this is a function, it is required that the count for a specific
2161  * netdev must never change. Basing the count on static values such as the
2162  * maximum number of queues or the device type is ok. However, the API for
2163  * obtaining stats is *not* safe against changes based on non-static
2164  * values such as the *current* number of queues, or runtime flags.
2165  *
2166  * If a statistic is not always enabled, return it as part of the count
2167  * anyways, always return its string, and report its value as zero.
2168  **/
2169 static int i40e_get_stats_count(struct net_device *netdev)
2170 {
2171         struct i40e_netdev_priv *np = netdev_priv(netdev);
2172         struct i40e_vsi *vsi = np->vsi;
2173         struct i40e_pf *pf = vsi->back;
2174         int stats_len;
2175
2176         if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1)
2177                 stats_len = I40E_PF_STATS_LEN;
2178         else
2179                 stats_len = I40E_VSI_STATS_LEN;
2180
2181         /* The number of stats reported for a given net_device must remain
2182          * constant throughout the life of that device.
2183          *
2184          * This is because the API for obtaining the size, strings, and stats
2185          * is spread out over three separate ethtool ioctls. There is no safe
2186          * way to lock the number of stats across these calls, so we must
2187          * assume that they will never change.
2188          *
2189          * Due to this, we report the maximum number of queues, even if not
2190          * every queue is currently configured. Since we always allocate
2191          * queues in pairs, we'll just use netdev->num_tx_queues * 2. This
2192          * works because the num_tx_queues is set at device creation and never
2193          * changes.
2194          */
2195         stats_len += I40E_QUEUE_STATS_LEN * 2 * netdev->num_tx_queues;
2196
2197         return stats_len;
2198 }
2199
2200 static int i40e_get_sset_count(struct net_device *netdev, int sset)
2201 {
2202         struct i40e_netdev_priv *np = netdev_priv(netdev);
2203         struct i40e_vsi *vsi = np->vsi;
2204         struct i40e_pf *pf = vsi->back;
2205
2206         switch (sset) {
2207         case ETH_SS_TEST:
2208                 return I40E_TEST_LEN;
2209         case ETH_SS_STATS:
2210                 return i40e_get_stats_count(netdev);
2211         case ETH_SS_PRIV_FLAGS:
2212                 return I40E_PRIV_FLAGS_STR_LEN +
2213                         (pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0);
2214         default:
2215                 return -EOPNOTSUPP;
2216         }
2217 }
2218
2219 /**
2220  * i40e_get_pfc_stats - copy HW PFC statistics to formatted structure
2221  * @pf: the PF device structure
2222  * @i: the priority value to copy
2223  *
2224  * The PFC stats are found as arrays in pf->stats, which is not easy to pass
2225  * into i40e_add_ethtool_stats. Produce a formatted i40e_pfc_stats structure
2226  * of the PFC stats for the given priority.
2227  **/
2228 static inline struct i40e_pfc_stats
2229 i40e_get_pfc_stats(struct i40e_pf *pf, unsigned int i)
2230 {
2231 #define I40E_GET_PFC_STAT(stat, priority) \
2232         .stat = pf->stats.stat[priority]
2233
2234         struct i40e_pfc_stats pfc = {
2235                 I40E_GET_PFC_STAT(priority_xon_rx, i),
2236                 I40E_GET_PFC_STAT(priority_xoff_rx, i),
2237                 I40E_GET_PFC_STAT(priority_xon_tx, i),
2238                 I40E_GET_PFC_STAT(priority_xoff_tx, i),
2239                 I40E_GET_PFC_STAT(priority_xon_2_xoff, i),
2240         };
2241         return pfc;
2242 }
2243
2244 /**
2245  * i40e_get_ethtool_stats - copy stat values into supplied buffer
2246  * @netdev: the netdev to collect stats for
2247  * @stats: ethtool stats command structure
2248  * @data: ethtool supplied buffer
2249  *
2250  * Copy the stats values for this netdev into the buffer. Expects data to be
2251  * pre-allocated to the size returned by i40e_get_stats_count.. Note that all
2252  * statistics must be copied in a static order, and the count must not change
2253  * for a given netdev. See i40e_get_stats_count for more details.
2254  *
2255  * If a statistic is not currently valid (such as a disabled queue), this
2256  * function reports its value as zero.
2257  **/
2258 static void i40e_get_ethtool_stats(struct net_device *netdev,
2259                                    struct ethtool_stats *stats, u64 *data)
2260 {
2261         struct i40e_netdev_priv *np = netdev_priv(netdev);
2262         struct i40e_vsi *vsi = np->vsi;
2263         struct i40e_pf *pf = vsi->back;
2264         struct i40e_veb *veb = NULL;
2265         unsigned int i;
2266         bool veb_stats;
2267         u64 *p = data;
2268
2269         i40e_update_stats(vsi);
2270
2271         i40e_add_ethtool_stats(&data, i40e_get_vsi_stats_struct(vsi),
2272                                i40e_gstrings_net_stats);
2273
2274         i40e_add_ethtool_stats(&data, vsi, i40e_gstrings_misc_stats);
2275
2276         rcu_read_lock();
2277         for (i = 0; i < netdev->num_tx_queues; i++) {
2278                 i40e_add_queue_stats(&data, READ_ONCE(vsi->tx_rings[i]));
2279                 i40e_add_queue_stats(&data, READ_ONCE(vsi->rx_rings[i]));
2280         }
2281         rcu_read_unlock();
2282
2283         if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
2284                 goto check_data_pointer;
2285
2286         veb_stats = ((pf->lan_veb != I40E_NO_VEB) &&
2287                      (pf->lan_veb < I40E_MAX_VEB) &&
2288                      (pf->flags & I40E_FLAG_VEB_STATS_ENABLED));
2289
2290         if (veb_stats) {
2291                 veb = pf->veb[pf->lan_veb];
2292                 i40e_update_veb_stats(veb);
2293         }
2294
2295         /* If veb stats aren't enabled, pass NULL instead of the veb so that
2296          * we initialize stats to zero and update the data pointer
2297          * intelligently
2298          */
2299         i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL,
2300                                i40e_gstrings_veb_stats);
2301
2302         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
2303                 i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL,
2304                                        i40e_gstrings_veb_tc_stats);
2305
2306         i40e_add_ethtool_stats(&data, pf, i40e_gstrings_stats);
2307
2308         for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
2309                 struct i40e_pfc_stats pfc = i40e_get_pfc_stats(pf, i);
2310
2311                 i40e_add_ethtool_stats(&data, &pfc, i40e_gstrings_pfc_stats);
2312         }
2313
2314 check_data_pointer:
2315         WARN_ONCE(data - p != i40e_get_stats_count(netdev),
2316                   "ethtool stats count mismatch!");
2317 }
2318
2319 /**
2320  * i40e_get_stat_strings - copy stat strings into supplied buffer
2321  * @netdev: the netdev to collect strings for
2322  * @data: supplied buffer to copy strings into
2323  *
2324  * Copy the strings related to stats for this netdev. Expects data to be
2325  * pre-allocated with the size reported by i40e_get_stats_count. Note that the
2326  * strings must be copied in a static order and the total count must not
2327  * change for a given netdev. See i40e_get_stats_count for more details.
2328  **/
2329 static void i40e_get_stat_strings(struct net_device *netdev, u8 *data)
2330 {
2331         struct i40e_netdev_priv *np = netdev_priv(netdev);
2332         struct i40e_vsi *vsi = np->vsi;
2333         struct i40e_pf *pf = vsi->back;
2334         unsigned int i;
2335         u8 *p = data;
2336
2337         i40e_add_stat_strings(&data, i40e_gstrings_net_stats);
2338
2339         i40e_add_stat_strings(&data, i40e_gstrings_misc_stats);
2340
2341         for (i = 0; i < netdev->num_tx_queues; i++) {
2342                 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats,
2343                                       "tx", i);
2344                 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats,
2345                                       "rx", i);
2346         }
2347
2348         if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
2349                 goto check_data_pointer;
2350
2351         i40e_add_stat_strings(&data, i40e_gstrings_veb_stats);
2352
2353         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
2354                 i40e_add_stat_strings(&data, i40e_gstrings_veb_tc_stats, i);
2355
2356         i40e_add_stat_strings(&data, i40e_gstrings_stats);
2357
2358         for (i = 0; i < I40E_MAX_USER_PRIORITY; i++)
2359                 i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i);
2360
2361 check_data_pointer:
2362         WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN,
2363                   "stat strings count mismatch!");
2364 }
2365
2366 static void i40e_get_priv_flag_strings(struct net_device *netdev, u8 *data)
2367 {
2368         struct i40e_netdev_priv *np = netdev_priv(netdev);
2369         struct i40e_vsi *vsi = np->vsi;
2370         struct i40e_pf *pf = vsi->back;
2371         char *p = (char *)data;
2372         unsigned int i;
2373
2374         for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
2375                 snprintf(p, ETH_GSTRING_LEN, "%s",
2376                          i40e_gstrings_priv_flags[i].flag_string);
2377                 p += ETH_GSTRING_LEN;
2378         }
2379         if (pf->hw.pf_id != 0)
2380                 return;
2381         for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++) {
2382                 snprintf(p, ETH_GSTRING_LEN, "%s",
2383                          i40e_gl_gstrings_priv_flags[i].flag_string);
2384                 p += ETH_GSTRING_LEN;
2385         }
2386 }
2387
2388 static void i40e_get_strings(struct net_device *netdev, u32 stringset,
2389                              u8 *data)
2390 {
2391         switch (stringset) {
2392         case ETH_SS_TEST:
2393                 memcpy(data, i40e_gstrings_test,
2394                        I40E_TEST_LEN * ETH_GSTRING_LEN);
2395                 break;
2396         case ETH_SS_STATS:
2397                 i40e_get_stat_strings(netdev, data);
2398                 break;
2399         case ETH_SS_PRIV_FLAGS:
2400                 i40e_get_priv_flag_strings(netdev, data);
2401                 break;
2402         default:
2403                 break;
2404         }
2405 }
2406
2407 static int i40e_get_ts_info(struct net_device *dev,
2408                             struct ethtool_ts_info *info)
2409 {
2410         struct i40e_pf *pf = i40e_netdev_to_pf(dev);
2411
2412         /* only report HW timestamping if PTP is enabled */
2413         if (!(pf->flags & I40E_FLAG_PTP))
2414                 return ethtool_op_get_ts_info(dev, info);
2415
2416         info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
2417                                 SOF_TIMESTAMPING_RX_SOFTWARE |
2418                                 SOF_TIMESTAMPING_SOFTWARE |
2419                                 SOF_TIMESTAMPING_TX_HARDWARE |
2420                                 SOF_TIMESTAMPING_RX_HARDWARE |
2421                                 SOF_TIMESTAMPING_RAW_HARDWARE;
2422
2423         if (pf->ptp_clock)
2424                 info->phc_index = ptp_clock_index(pf->ptp_clock);
2425         else
2426                 info->phc_index = -1;
2427
2428         info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
2429
2430         info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
2431                            BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
2432                            BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
2433                            BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ);
2434
2435         if (pf->hw_features & I40E_HW_PTP_L4_CAPABLE)
2436                 info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
2437                                     BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
2438                                     BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) |
2439                                     BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
2440                                     BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) |
2441                                     BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
2442                                     BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
2443                                     BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ);
2444
2445         return 0;
2446 }
2447
2448 static u64 i40e_link_test(struct net_device *netdev, u64 *data)
2449 {
2450         struct i40e_netdev_priv *np = netdev_priv(netdev);
2451         struct i40e_pf *pf = np->vsi->back;
2452         i40e_status status;
2453         bool link_up = false;
2454
2455         netif_info(pf, hw, netdev, "link test\n");
2456         status = i40e_get_link_status(&pf->hw, &link_up);
2457         if (status) {
2458                 netif_err(pf, drv, netdev, "link query timed out, please retry test\n");
2459                 *data = 1;
2460                 return *data;
2461         }
2462
2463         if (link_up)
2464                 *data = 0;
2465         else
2466                 *data = 1;
2467
2468         return *data;
2469 }
2470
2471 static u64 i40e_reg_test(struct net_device *netdev, u64 *data)
2472 {
2473         struct i40e_netdev_priv *np = netdev_priv(netdev);
2474         struct i40e_pf *pf = np->vsi->back;
2475
2476         netif_info(pf, hw, netdev, "register test\n");
2477         *data = i40e_diag_reg_test(&pf->hw);
2478
2479         return *data;
2480 }
2481
2482 static u64 i40e_eeprom_test(struct net_device *netdev, u64 *data)
2483 {
2484         struct i40e_netdev_priv *np = netdev_priv(netdev);
2485         struct i40e_pf *pf = np->vsi->back;
2486
2487         netif_info(pf, hw, netdev, "eeprom test\n");
2488         *data = i40e_diag_eeprom_test(&pf->hw);
2489
2490         /* forcebly clear the NVM Update state machine */
2491         pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT;
2492
2493         return *data;
2494 }
2495
2496 static u64 i40e_intr_test(struct net_device *netdev, u64 *data)
2497 {
2498         struct i40e_netdev_priv *np = netdev_priv(netdev);
2499         struct i40e_pf *pf = np->vsi->back;
2500         u16 swc_old = pf->sw_int_count;
2501
2502         netif_info(pf, hw, netdev, "interrupt test\n");
2503         wr32(&pf->hw, I40E_PFINT_DYN_CTL0,
2504              (I40E_PFINT_DYN_CTL0_INTENA_MASK |
2505               I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK |
2506               I40E_PFINT_DYN_CTL0_ITR_INDX_MASK |
2507               I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK |
2508               I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK));
2509         usleep_range(1000, 2000);
2510         *data = (swc_old == pf->sw_int_count);
2511
2512         return *data;
2513 }
2514
2515 static inline bool i40e_active_vfs(struct i40e_pf *pf)
2516 {
2517         struct i40e_vf *vfs = pf->vf;
2518         int i;
2519
2520         for (i = 0; i < pf->num_alloc_vfs; i++)
2521                 if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states))
2522                         return true;
2523         return false;
2524 }
2525
2526 static inline bool i40e_active_vmdqs(struct i40e_pf *pf)
2527 {
2528         return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2);
2529 }
2530
2531 static void i40e_diag_test(struct net_device *netdev,
2532                            struct ethtool_test *eth_test, u64 *data)
2533 {
2534         struct i40e_netdev_priv *np = netdev_priv(netdev);
2535         bool if_running = netif_running(netdev);
2536         struct i40e_pf *pf = np->vsi->back;
2537
2538         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
2539                 /* Offline tests */
2540                 netif_info(pf, drv, netdev, "offline testing starting\n");
2541
2542                 set_bit(__I40E_TESTING, pf->state);
2543
2544                 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) {
2545                         dev_warn(&pf->pdev->dev,
2546                                  "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");
2547                         data[I40E_ETH_TEST_REG]         = 1;
2548                         data[I40E_ETH_TEST_EEPROM]      = 1;
2549                         data[I40E_ETH_TEST_INTR]        = 1;
2550                         data[I40E_ETH_TEST_LINK]        = 1;
2551                         eth_test->flags |= ETH_TEST_FL_FAILED;
2552                         clear_bit(__I40E_TESTING, pf->state);
2553                         goto skip_ol_tests;
2554                 }
2555
2556                 /* If the device is online then take it offline */
2557                 if (if_running)
2558                         /* indicate we're in test mode */
2559                         i40e_close(netdev);
2560                 else
2561                         /* This reset does not affect link - if it is
2562                          * changed to a type of reset that does affect
2563                          * link then the following link test would have
2564                          * to be moved to before the reset
2565                          */
2566                         i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
2567
2568                 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
2569                         eth_test->flags |= ETH_TEST_FL_FAILED;
2570
2571                 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM]))
2572                         eth_test->flags |= ETH_TEST_FL_FAILED;
2573
2574                 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR]))
2575                         eth_test->flags |= ETH_TEST_FL_FAILED;
2576
2577                 /* run reg test last, a reset is required after it */
2578                 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG]))
2579                         eth_test->flags |= ETH_TEST_FL_FAILED;
2580
2581                 clear_bit(__I40E_TESTING, pf->state);
2582                 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
2583
2584                 if (if_running)
2585                         i40e_open(netdev);
2586         } else {
2587                 /* Online tests */
2588                 netif_info(pf, drv, netdev, "online testing starting\n");
2589
2590                 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
2591                         eth_test->flags |= ETH_TEST_FL_FAILED;
2592
2593                 /* Offline only tests, not run in online; pass by default */
2594                 data[I40E_ETH_TEST_REG] = 0;
2595                 data[I40E_ETH_TEST_EEPROM] = 0;
2596                 data[I40E_ETH_TEST_INTR] = 0;
2597         }
2598
2599 skip_ol_tests:
2600
2601         netif_info(pf, drv, netdev, "testing finished\n");
2602 }
2603
2604 static void i40e_get_wol(struct net_device *netdev,
2605                          struct ethtool_wolinfo *wol)
2606 {
2607         struct i40e_netdev_priv *np = netdev_priv(netdev);
2608         struct i40e_pf *pf = np->vsi->back;
2609         struct i40e_hw *hw = &pf->hw;
2610         u16 wol_nvm_bits;
2611
2612         /* NVM bit on means WoL disabled for the port */
2613         i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
2614         if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) {
2615                 wol->supported = 0;
2616                 wol->wolopts = 0;
2617         } else {
2618                 wol->supported = WAKE_MAGIC;
2619                 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0);
2620         }
2621 }
2622
2623 /**
2624  * i40e_set_wol - set the WakeOnLAN configuration
2625  * @netdev: the netdev in question
2626  * @wol: the ethtool WoL setting data
2627  **/
2628 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
2629 {
2630         struct i40e_netdev_priv *np = netdev_priv(netdev);
2631         struct i40e_pf *pf = np->vsi->back;
2632         struct i40e_vsi *vsi = np->vsi;
2633         struct i40e_hw *hw = &pf->hw;
2634         u16 wol_nvm_bits;
2635
2636         /* WoL not supported if this isn't the controlling PF on the port */
2637         if (hw->partition_id != 1) {
2638                 i40e_partition_setting_complaint(pf);
2639                 return -EOPNOTSUPP;
2640         }
2641
2642         if (vsi != pf->vsi[pf->lan_vsi])
2643                 return -EOPNOTSUPP;
2644
2645         /* NVM bit on means WoL disabled for the port */
2646         i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
2647         if (BIT(hw->port) & wol_nvm_bits)
2648                 return -EOPNOTSUPP;
2649
2650         /* only magic packet is supported */
2651         if (wol->wolopts & ~WAKE_MAGIC)
2652                 return -EOPNOTSUPP;
2653
2654         /* is this a new value? */
2655         if (pf->wol_en != !!wol->wolopts) {
2656                 pf->wol_en = !!wol->wolopts;
2657                 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en);
2658         }
2659
2660         return 0;
2661 }
2662
2663 static int i40e_set_phys_id(struct net_device *netdev,
2664                             enum ethtool_phys_id_state state)
2665 {
2666         struct i40e_netdev_priv *np = netdev_priv(netdev);
2667         i40e_status ret = 0;
2668         struct i40e_pf *pf = np->vsi->back;
2669         struct i40e_hw *hw = &pf->hw;
2670         int blink_freq = 2;
2671         u16 temp_status;
2672
2673         switch (state) {
2674         case ETHTOOL_ID_ACTIVE:
2675                 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) {
2676                         pf->led_status = i40e_led_get(hw);
2677                 } else {
2678                         if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE))
2679                                 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL,
2680                                                       NULL);
2681                         ret = i40e_led_get_phy(hw, &temp_status,
2682                                                &pf->phy_led_val);
2683                         pf->led_status = temp_status;
2684                 }
2685                 return blink_freq;
2686         case ETHTOOL_ID_ON:
2687                 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS))
2688                         i40e_led_set(hw, 0xf, false);
2689                 else
2690                         ret = i40e_led_set_phy(hw, true, pf->led_status, 0);
2691                 break;
2692         case ETHTOOL_ID_OFF:
2693                 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS))
2694                         i40e_led_set(hw, 0x0, false);
2695                 else
2696                         ret = i40e_led_set_phy(hw, false, pf->led_status, 0);
2697                 break;
2698         case ETHTOOL_ID_INACTIVE:
2699                 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) {
2700                         i40e_led_set(hw, pf->led_status, false);
2701                 } else {
2702                         ret = i40e_led_set_phy(hw, false, pf->led_status,
2703                                                (pf->phy_led_val |
2704                                                I40E_PHY_LED_MODE_ORIG));
2705                         if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE))
2706                                 i40e_aq_set_phy_debug(hw, 0, NULL);
2707                 }
2708                 break;
2709         default:
2710                 break;
2711         }
2712         if (ret)
2713                 return -ENOENT;
2714         else
2715                 return 0;
2716 }
2717
2718 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt
2719  * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also
2720  * 125us (8000 interrupts per second) == ITR(62)
2721  */
2722
2723 /**
2724  * __i40e_get_coalesce - get per-queue coalesce settings
2725  * @netdev: the netdev to check
2726  * @ec: ethtool coalesce data structure
2727  * @queue: which queue to pick
2728  *
2729  * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs
2730  * are per queue. If queue is <0 then we default to queue 0 as the
2731  * representative value.
2732  **/
2733 static int __i40e_get_coalesce(struct net_device *netdev,
2734                                struct ethtool_coalesce *ec,
2735                                int queue)
2736 {
2737         struct i40e_netdev_priv *np = netdev_priv(netdev);
2738         struct i40e_ring *rx_ring, *tx_ring;
2739         struct i40e_vsi *vsi = np->vsi;
2740
2741         ec->tx_max_coalesced_frames_irq = vsi->work_limit;
2742         ec->rx_max_coalesced_frames_irq = vsi->work_limit;
2743
2744         /* rx and tx usecs has per queue value. If user doesn't specify the
2745          * queue, return queue 0's value to represent.
2746          */
2747         if (queue < 0)
2748                 queue = 0;
2749         else if (queue >= vsi->num_queue_pairs)
2750                 return -EINVAL;
2751
2752         rx_ring = vsi->rx_rings[queue];
2753         tx_ring = vsi->tx_rings[queue];
2754
2755         if (ITR_IS_DYNAMIC(rx_ring->itr_setting))
2756                 ec->use_adaptive_rx_coalesce = 1;
2757
2758         if (ITR_IS_DYNAMIC(tx_ring->itr_setting))
2759                 ec->use_adaptive_tx_coalesce = 1;
2760
2761         ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
2762         ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
2763
2764         /* we use the _usecs_high to store/set the interrupt rate limit
2765          * that the hardware supports, that almost but not quite
2766          * fits the original intent of the ethtool variable,
2767          * the rx_coalesce_usecs_high limits total interrupts
2768          * per second from both tx/rx sources.
2769          */
2770         ec->rx_coalesce_usecs_high = vsi->int_rate_limit;
2771         ec->tx_coalesce_usecs_high = vsi->int_rate_limit;
2772
2773         return 0;
2774 }
2775
2776 /**
2777  * i40e_get_coalesce - get a netdev's coalesce settings
2778  * @netdev: the netdev to check
2779  * @ec: ethtool coalesce data structure
2780  *
2781  * Gets the coalesce settings for a particular netdev. Note that if user has
2782  * modified per-queue settings, this only guarantees to represent queue 0. See
2783  * __i40e_get_coalesce for more details.
2784  **/
2785 static int i40e_get_coalesce(struct net_device *netdev,
2786                              struct ethtool_coalesce *ec)
2787 {
2788         return __i40e_get_coalesce(netdev, ec, -1);
2789 }
2790
2791 /**
2792  * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue
2793  * @netdev: netdev structure
2794  * @ec: ethtool's coalesce settings
2795  * @queue: the particular queue to read
2796  *
2797  * Will read a specific queue's coalesce settings
2798  **/
2799 static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue,
2800                                        struct ethtool_coalesce *ec)
2801 {
2802         return __i40e_get_coalesce(netdev, ec, queue);
2803 }
2804
2805 /**
2806  * i40e_set_itr_per_queue - set ITR values for specific queue
2807  * @vsi: the VSI to set values for
2808  * @ec: coalesce settings from ethtool
2809  * @queue: the queue to modify
2810  *
2811  * Change the ITR settings for a specific queue.
2812  **/
2813 static void i40e_set_itr_per_queue(struct i40e_vsi *vsi,
2814                                    struct ethtool_coalesce *ec,
2815                                    int queue)
2816 {
2817         struct i40e_ring *rx_ring = vsi->rx_rings[queue];
2818         struct i40e_ring *tx_ring = vsi->tx_rings[queue];
2819         struct i40e_pf *pf = vsi->back;
2820         struct i40e_hw *hw = &pf->hw;
2821         struct i40e_q_vector *q_vector;
2822         u16 intrl;
2823
2824         intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit);
2825
2826         rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs);
2827         tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs);
2828
2829         if (ec->use_adaptive_rx_coalesce)
2830                 rx_ring->itr_setting |= I40E_ITR_DYNAMIC;
2831         else
2832                 rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;
2833
2834         if (ec->use_adaptive_tx_coalesce)
2835                 tx_ring->itr_setting |= I40E_ITR_DYNAMIC;
2836         else
2837                 tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;
2838
2839         q_vector = rx_ring->q_vector;
2840         q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting);
2841
2842         q_vector = tx_ring->q_vector;
2843         q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting);
2844
2845         /* The interrupt handler itself will take care of programming
2846          * the Tx and Rx ITR values based on the values we have entered
2847          * into the q_vector, no need to write the values now.
2848          */
2849
2850         wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl);
2851         i40e_flush(hw);
2852 }
2853
2854 /**
2855  * __i40e_set_coalesce - set coalesce settings for particular queue
2856  * @netdev: the netdev to change
2857  * @ec: ethtool coalesce settings
2858  * @queue: the queue to change
2859  *
2860  * Sets the coalesce settings for a particular queue.
2861  **/
2862 static int __i40e_set_coalesce(struct net_device *netdev,
2863                                struct ethtool_coalesce *ec,
2864                                int queue)
2865 {
2866         struct i40e_netdev_priv *np = netdev_priv(netdev);
2867         u16 intrl_reg, cur_rx_itr, cur_tx_itr;
2868         struct i40e_vsi *vsi = np->vsi;
2869         struct i40e_pf *pf = vsi->back;
2870         int i;
2871
2872         if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq)
2873                 vsi->work_limit = ec->tx_max_coalesced_frames_irq;
2874
2875         if (queue < 0) {
2876                 cur_rx_itr = vsi->rx_rings[0]->itr_setting;
2877                 cur_tx_itr = vsi->tx_rings[0]->itr_setting;
2878         } else if (queue < vsi->num_queue_pairs) {
2879                 cur_rx_itr = vsi->rx_rings[queue]->itr_setting;
2880                 cur_tx_itr = vsi->tx_rings[queue]->itr_setting;
2881         } else {
2882                 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n",
2883                            vsi->num_queue_pairs - 1);
2884                 return -EINVAL;
2885         }
2886
2887         cur_tx_itr &= ~I40E_ITR_DYNAMIC;
2888         cur_rx_itr &= ~I40E_ITR_DYNAMIC;
2889
2890         /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */
2891         if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) {
2892                 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n");
2893                 return -EINVAL;
2894         }
2895
2896         if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) {
2897                 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n",
2898                            INTRL_REG_TO_USEC(I40E_MAX_INTRL));
2899                 return -EINVAL;
2900         }
2901
2902         if (ec->rx_coalesce_usecs != cur_rx_itr &&
2903             ec->use_adaptive_rx_coalesce) {
2904                 netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n");
2905                 return -EINVAL;
2906         }
2907
2908         if (ec->rx_coalesce_usecs > I40E_MAX_ITR) {
2909                 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
2910                 return -EINVAL;
2911         }
2912
2913         if (ec->tx_coalesce_usecs != cur_tx_itr &&
2914             ec->use_adaptive_tx_coalesce) {
2915                 netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n");
2916                 return -EINVAL;
2917         }
2918
2919         if (ec->tx_coalesce_usecs > I40E_MAX_ITR) {
2920                 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n");
2921                 return -EINVAL;
2922         }
2923
2924         if (ec->use_adaptive_rx_coalesce && !cur_rx_itr)
2925                 ec->rx_coalesce_usecs = I40E_MIN_ITR;
2926
2927         if (ec->use_adaptive_tx_coalesce && !cur_tx_itr)
2928                 ec->tx_coalesce_usecs = I40E_MIN_ITR;
2929
2930         intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high);
2931         vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg);
2932         if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) {
2933                 netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n",
2934                            vsi->int_rate_limit);
2935         }
2936
2937         /* rx and tx usecs has per queue value. If user doesn't specify the
2938          * queue, apply to all queues.
2939          */
2940         if (queue < 0) {
2941                 for (i = 0; i < vsi->num_queue_pairs; i++)
2942                         i40e_set_itr_per_queue(vsi, ec, i);
2943         } else {
2944                 i40e_set_itr_per_queue(vsi, ec, queue);
2945         }
2946
2947         return 0;
2948 }
2949
2950 /**
2951  * i40e_set_coalesce - set coalesce settings for every queue on the netdev
2952  * @netdev: the netdev to change
2953  * @ec: ethtool coalesce settings
2954  *
2955  * This will set each queue to the same coalesce settings.
2956  **/
2957 static int i40e_set_coalesce(struct net_device *netdev,
2958                              struct ethtool_coalesce *ec)
2959 {
2960         return __i40e_set_coalesce(netdev, ec, -1);
2961 }
2962
2963 /**
2964  * i40e_set_per_queue_coalesce - set specific queue's coalesce settings
2965  * @netdev: the netdev to change
2966  * @ec: ethtool's coalesce settings
2967  * @queue: the queue to change
2968  *
2969  * Sets the specified queue's coalesce settings.
2970  **/
2971 static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue,
2972                                        struct ethtool_coalesce *ec)
2973 {
2974         return __i40e_set_coalesce(netdev, ec, queue);
2975 }
2976
2977 /**
2978  * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type
2979  * @pf: pointer to the physical function struct
2980  * @cmd: ethtool rxnfc command
2981  *
2982  * Returns Success if the flow is supported, else Invalid Input.
2983  **/
2984 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd)
2985 {
2986         struct i40e_hw *hw = &pf->hw;
2987         u8 flow_pctype = 0;
2988         u64 i_set = 0;
2989
2990         cmd->data = 0;
2991
2992         switch (cmd->flow_type) {
2993         case TCP_V4_FLOW:
2994                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
2995                 break;
2996         case UDP_V4_FLOW:
2997                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
2998                 break;
2999         case TCP_V6_FLOW:
3000                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
3001                 break;
3002         case UDP_V6_FLOW:
3003                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
3004                 break;
3005         case SCTP_V4_FLOW:
3006         case AH_ESP_V4_FLOW:
3007         case AH_V4_FLOW:
3008         case ESP_V4_FLOW:
3009         case IPV4_FLOW:
3010         case SCTP_V6_FLOW:
3011         case AH_ESP_V6_FLOW:
3012         case AH_V6_FLOW:
3013         case ESP_V6_FLOW:
3014         case IPV6_FLOW:
3015                 /* Default is src/dest for IP, no matter the L4 hashing */
3016                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
3017                 break;
3018         default:
3019                 return -EINVAL;
3020         }
3021
3022         /* Read flow based hash input set register */
3023         if (flow_pctype) {
3024                 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0,
3025                                               flow_pctype)) |
3026                         ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1,
3027                                                flow_pctype)) << 32);
3028         }
3029
3030         /* Process bits of hash input set */
3031         if (i_set) {
3032                 if (i_set & I40E_L4_SRC_MASK)
3033                         cmd->data |= RXH_L4_B_0_1;
3034                 if (i_set & I40E_L4_DST_MASK)
3035                         cmd->data |= RXH_L4_B_2_3;
3036
3037                 if (cmd->flow_type == TCP_V4_FLOW ||
3038                     cmd->flow_type == UDP_V4_FLOW) {
3039                         if (i_set & I40E_L3_SRC_MASK)
3040                                 cmd->data |= RXH_IP_SRC;
3041                         if (i_set & I40E_L3_DST_MASK)
3042                                 cmd->data |= RXH_IP_DST;
3043                 } else if (cmd->flow_type == TCP_V6_FLOW ||
3044                           cmd->flow_type == UDP_V6_FLOW) {
3045                         if (i_set & I40E_L3_V6_SRC_MASK)
3046                                 cmd->data |= RXH_IP_SRC;
3047                         if (i_set & I40E_L3_V6_DST_MASK)
3048                                 cmd->data |= RXH_IP_DST;
3049                 }
3050         }
3051
3052         return 0;
3053 }
3054
3055 /**
3056  * i40e_check_mask - Check whether a mask field is set
3057  * @mask: the full mask value
3058  * @field: mask of the field to check
3059  *
3060  * If the given mask is fully set, return positive value. If the mask for the
3061  * field is fully unset, return zero. Otherwise return a negative error code.
3062  **/
3063 static int i40e_check_mask(u64 mask, u64 field)
3064 {
3065         u64 value = mask & field;
3066
3067         if (value == field)
3068                 return 1;
3069         else if (!value)
3070                 return 0;
3071         else
3072                 return -1;
3073 }
3074
3075 /**
3076  * i40e_parse_rx_flow_user_data - Deconstruct user-defined data
3077  * @fsp: pointer to rx flow specification
3078  * @data: pointer to userdef data structure for storage
3079  *
3080  * Read the user-defined data and deconstruct the value into a structure. No
3081  * other code should read the user-defined data, so as to ensure that every
3082  * place consistently reads the value correctly.
3083  *
3084  * The user-defined field is a 64bit Big Endian format value, which we
3085  * deconstruct by reading bits or bit fields from it. Single bit flags shall
3086  * be defined starting from the highest bits, while small bit field values
3087  * shall be defined starting from the lowest bits.
3088  *
3089  * Returns 0 if the data is valid, and non-zero if the userdef data is invalid
3090  * and the filter should be rejected. The data structure will always be
3091  * modified even if FLOW_EXT is not set.
3092  *
3093  **/
3094 static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
3095                                         struct i40e_rx_flow_userdef *data)
3096 {
3097         u64 value, mask;
3098         int valid;
3099
3100         /* Zero memory first so it's always consistent. */
3101         memset(data, 0, sizeof(*data));
3102
3103         if (!(fsp->flow_type & FLOW_EXT))
3104                 return 0;
3105
3106         value = be64_to_cpu(*((__be64 *)fsp->h_ext.data));
3107         mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data));
3108
3109 #define I40E_USERDEF_FLEX_WORD          GENMASK_ULL(15, 0)
3110 #define I40E_USERDEF_FLEX_OFFSET        GENMASK_ULL(31, 16)
3111 #define I40E_USERDEF_FLEX_FILTER        GENMASK_ULL(31, 0)
3112
3113         valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER);
3114         if (valid < 0) {
3115                 return -EINVAL;
3116         } else if (valid) {
3117                 data->flex_word = value & I40E_USERDEF_FLEX_WORD;
3118                 data->flex_offset =
3119                         (value & I40E_USERDEF_FLEX_OFFSET) >> 16;
3120                 data->flex_filter = true;
3121         }
3122
3123         return 0;
3124 }
3125
3126 /**
3127  * i40e_fill_rx_flow_user_data - Fill in user-defined data field
3128  * @fsp: pointer to rx_flow specification
3129  * @data: pointer to return userdef data
3130  *
3131  * Reads the userdef data structure and properly fills in the user defined
3132  * fields of the rx_flow_spec.
3133  **/
3134 static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
3135                                         struct i40e_rx_flow_userdef *data)
3136 {
3137         u64 value = 0, mask = 0;
3138
3139         if (data->flex_filter) {
3140                 value |= data->flex_word;
3141                 value |= (u64)data->flex_offset << 16;
3142                 mask |= I40E_USERDEF_FLEX_FILTER;
3143         }
3144
3145         if (value || mask)
3146                 fsp->flow_type |= FLOW_EXT;
3147
3148         *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value);
3149         *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask);
3150 }
3151
3152 /**
3153  * i40e_get_ethtool_fdir_all - Populates the rule count of a command
3154  * @pf: Pointer to the physical function struct
3155  * @cmd: The command to get or set Rx flow classification rules
3156  * @rule_locs: Array of used rule locations
3157  *
3158  * This function populates both the total and actual rule count of
3159  * the ethtool flow classification command
3160  *
3161  * Returns 0 on success or -EMSGSIZE if entry not found
3162  **/
3163 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf,
3164                                      struct ethtool_rxnfc *cmd,
3165                                      u32 *rule_locs)
3166 {
3167         struct i40e_fdir_filter *rule;
3168         struct hlist_node *node2;
3169         int cnt = 0;
3170
3171         /* report total rule count */
3172         cmd->data = i40e_get_fd_cnt_all(pf);
3173
3174         hlist_for_each_entry_safe(rule, node2,
3175                                   &pf->fdir_filter_list, fdir_node) {
3176                 if (cnt == cmd->rule_cnt)
3177                         return -EMSGSIZE;
3178
3179                 rule_locs[cnt] = rule->fd_id;
3180                 cnt++;
3181         }
3182
3183         cmd->rule_cnt = cnt;
3184
3185         return 0;
3186 }
3187
3188 /**
3189  * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow
3190  * @pf: Pointer to the physical function struct
3191  * @cmd: The command to get or set Rx flow classification rules
3192  *
3193  * This function looks up a filter based on the Rx flow classification
3194  * command and fills the flow spec info for it if found
3195  *
3196  * Returns 0 on success or -EINVAL if filter not found
3197  **/
3198 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf,
3199                                        struct ethtool_rxnfc *cmd)
3200 {
3201         struct ethtool_rx_flow_spec *fsp =
3202                         (struct ethtool_rx_flow_spec *)&cmd->fs;
3203         struct i40e_rx_flow_userdef userdef = {0};
3204         struct i40e_fdir_filter *rule = NULL;
3205         struct hlist_node *node2;
3206         u64 input_set;
3207         u16 index;
3208
3209         hlist_for_each_entry_safe(rule, node2,
3210                                   &pf->fdir_filter_list, fdir_node) {
3211                 if (fsp->location <= rule->fd_id)
3212                         break;
3213         }
3214
3215         if (!rule || fsp->location != rule->fd_id)
3216                 return -EINVAL;
3217
3218         fsp->flow_type = rule->flow_type;
3219         if (fsp->flow_type == IP_USER_FLOW) {
3220                 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
3221                 fsp->h_u.usr_ip4_spec.proto = 0;
3222                 fsp->m_u.usr_ip4_spec.proto = 0;
3223         }
3224
3225         if (fsp->flow_type == IPV6_USER_FLOW ||
3226             fsp->flow_type == UDP_V6_FLOW ||
3227             fsp->flow_type == TCP_V6_FLOW ||
3228             fsp->flow_type == SCTP_V6_FLOW) {
3229                 /* Reverse the src and dest notion, since the HW views them
3230                  * from Tx perspective where as the user expects it from
3231                  * Rx filter view.
3232                  */
3233                 fsp->h_u.tcp_ip6_spec.psrc = rule->dst_port;
3234                 fsp->h_u.tcp_ip6_spec.pdst = rule->src_port;
3235                 memcpy(fsp->h_u.tcp_ip6_spec.ip6dst, rule->src_ip6,
3236                        sizeof(__be32) * 4);
3237                 memcpy(fsp->h_u.tcp_ip6_spec.ip6src, rule->dst_ip6,
3238                        sizeof(__be32) * 4);
3239         } else {
3240                 /* Reverse the src and dest notion, since the HW views them
3241                  * from Tx perspective where as the user expects it from
3242                  * Rx filter view.
3243                  */
3244                 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port;
3245                 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port;
3246                 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip;
3247                 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip;
3248         }
3249
3250         switch (rule->flow_type) {
3251         case SCTP_V4_FLOW:
3252                 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP;
3253                 break;
3254         case TCP_V4_FLOW:
3255                 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
3256                 break;
3257         case UDP_V4_FLOW:
3258                 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
3259                 break;
3260         case SCTP_V6_FLOW:
3261                 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP;
3262                 break;
3263         case TCP_V6_FLOW:
3264                 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
3265                 break;
3266         case UDP_V6_FLOW:
3267                 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
3268                 break;
3269         case IP_USER_FLOW:
3270                 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;
3271                 break;
3272         case IPV6_USER_FLOW:
3273                 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER;
3274                 break;
3275         default:
3276                 /* If we have stored a filter with a flow type not listed here
3277                  * it is almost certainly a driver bug. WARN(), and then
3278                  * assign the input_set as if all fields are enabled to avoid
3279                  * reading unassigned memory.
3280                  */
3281                 WARN(1, "Missing input set index for flow_type %d\n",
3282                      rule->flow_type);
3283                 input_set = 0xFFFFFFFFFFFFFFFFULL;
3284                 goto no_input_set;
3285         }
3286
3287         input_set = i40e_read_fd_input_set(pf, index);
3288
3289 no_input_set:
3290         if (input_set & I40E_L3_V6_SRC_MASK) {
3291                 fsp->m_u.tcp_ip6_spec.ip6src[0] = htonl(0xFFFFFFFF);
3292                 fsp->m_u.tcp_ip6_spec.ip6src[1] = htonl(0xFFFFFFFF);
3293                 fsp->m_u.tcp_ip6_spec.ip6src[2] = htonl(0xFFFFFFFF);
3294                 fsp->m_u.tcp_ip6_spec.ip6src[3] = htonl(0xFFFFFFFF);
3295         }
3296
3297         if (input_set & I40E_L3_V6_DST_MASK) {
3298                 fsp->m_u.tcp_ip6_spec.ip6dst[0] = htonl(0xFFFFFFFF);
3299                 fsp->m_u.tcp_ip6_spec.ip6dst[1] = htonl(0xFFFFFFFF);
3300                 fsp->m_u.tcp_ip6_spec.ip6dst[2] = htonl(0xFFFFFFFF);
3301                 fsp->m_u.tcp_ip6_spec.ip6dst[3] = htonl(0xFFFFFFFF);
3302         }
3303
3304         if (input_set & I40E_L3_SRC_MASK)
3305                 fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF);
3306
3307         if (input_set & I40E_L3_DST_MASK)
3308                 fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF);
3309
3310         if (input_set & I40E_L4_SRC_MASK)
3311                 fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF);
3312
3313         if (input_set & I40E_L4_DST_MASK)
3314                 fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF);
3315
3316         if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET)
3317                 fsp->ring_cookie = RX_CLS_FLOW_DISC;
3318         else
3319                 fsp->ring_cookie = rule->q_index;
3320
3321         if (rule->vlan_tag) {
3322                 fsp->h_ext.vlan_etype = rule->vlan_etype;
3323                 fsp->m_ext.vlan_etype = htons(0xFFFF);
3324                 fsp->h_ext.vlan_tci = rule->vlan_tag;
3325                 fsp->m_ext.vlan_tci = htons(0xFFFF);
3326                 fsp->flow_type |= FLOW_EXT;
3327         }
3328
3329         if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) {
3330                 struct i40e_vsi *vsi;
3331
3332                 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi);
3333                 if (vsi && vsi->type == I40E_VSI_SRIOV) {
3334                         /* VFs are zero-indexed by the driver, but ethtool
3335                          * expects them to be one-indexed, so add one here
3336                          */
3337                         u64 ring_vf = vsi->vf_id + 1;
3338
3339                         ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF;
3340                         fsp->ring_cookie |= ring_vf;
3341                 }
3342         }
3343
3344         if (rule->flex_filter) {
3345                 userdef.flex_filter = true;
3346                 userdef.flex_word = be16_to_cpu(rule->flex_word);
3347                 userdef.flex_offset = rule->flex_offset;
3348         }
3349
3350         i40e_fill_rx_flow_user_data(fsp, &userdef);
3351
3352         return 0;
3353 }
3354
3355 /**
3356  * i40e_get_rxnfc - command to get RX flow classification rules
3357  * @netdev: network interface device structure
3358  * @cmd: ethtool rxnfc command
3359  * @rule_locs: pointer to store rule data
3360  *
3361  * Returns Success if the command is supported.
3362  **/
3363 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
3364                           u32 *rule_locs)
3365 {
3366         struct i40e_netdev_priv *np = netdev_priv(netdev);
3367         struct i40e_vsi *vsi = np->vsi;
3368         struct i40e_pf *pf = vsi->back;
3369         int ret = -EOPNOTSUPP;
3370
3371         switch (cmd->cmd) {
3372         case ETHTOOL_GRXRINGS:
3373                 cmd->data = vsi->rss_size;
3374                 ret = 0;
3375                 break;
3376         case ETHTOOL_GRXFH:
3377                 ret = i40e_get_rss_hash_opts(pf, cmd);
3378                 break;
3379         case ETHTOOL_GRXCLSRLCNT:
3380                 cmd->rule_cnt = pf->fdir_pf_active_filters;
3381                 /* report total rule count */
3382                 cmd->data = i40e_get_fd_cnt_all(pf);
3383                 ret = 0;
3384                 break;
3385         case ETHTOOL_GRXCLSRULE:
3386                 ret = i40e_get_ethtool_fdir_entry(pf, cmd);
3387                 break;
3388         case ETHTOOL_GRXCLSRLALL:
3389                 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs);
3390                 break;
3391         default:
3392                 break;
3393         }
3394
3395         return ret;
3396 }
3397
3398 /**
3399  * i40e_get_rss_hash_bits - Read RSS Hash bits from register
3400  * @nfc: pointer to user request
3401  * @i_setc: bits currently set
3402  *
3403  * Returns value of bits to be set per user request
3404  **/
3405 static u64 i40e_get_rss_hash_bits(struct ethtool_rxnfc *nfc, u64 i_setc)
3406 {
3407         u64 i_set = i_setc;
3408         u64 src_l3 = 0, dst_l3 = 0;
3409
3410         if (nfc->data & RXH_L4_B_0_1)
3411                 i_set |= I40E_L4_SRC_MASK;
3412         else
3413                 i_set &= ~I40E_L4_SRC_MASK;
3414         if (nfc->data & RXH_L4_B_2_3)
3415                 i_set |= I40E_L4_DST_MASK;
3416         else
3417                 i_set &= ~I40E_L4_DST_MASK;
3418
3419         if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) {
3420                 src_l3 = I40E_L3_V6_SRC_MASK;
3421                 dst_l3 = I40E_L3_V6_DST_MASK;
3422         } else if (nfc->flow_type == TCP_V4_FLOW ||
3423                   nfc->flow_type == UDP_V4_FLOW) {
3424                 src_l3 = I40E_L3_SRC_MASK;
3425                 dst_l3 = I40E_L3_DST_MASK;
3426         } else {
3427                 /* Any other flow type are not supported here */
3428                 return i_set;
3429         }
3430
3431         if (nfc->data & RXH_IP_SRC)
3432                 i_set |= src_l3;
3433         else
3434                 i_set &= ~src_l3;
3435         if (nfc->data & RXH_IP_DST)
3436                 i_set |= dst_l3;
3437         else
3438                 i_set &= ~dst_l3;
3439
3440         return i_set;
3441 }
3442
3443 /**
3444  * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash
3445  * @pf: pointer to the physical function struct
3446  * @nfc: ethtool rxnfc command
3447  *
3448  * Returns Success if the flow input set is supported.
3449  **/
3450 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
3451 {
3452         struct i40e_hw *hw = &pf->hw;
3453         u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) |
3454                    ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32);
3455         u8 flow_pctype = 0;
3456         u64 i_set, i_setc;
3457
3458         if (pf->flags & I40E_FLAG_MFP_ENABLED) {
3459                 dev_err(&pf->pdev->dev,
3460                         "Change of RSS hash input set is not supported when MFP mode is enabled\n");
3461                 return -EOPNOTSUPP;
3462         }
3463
3464         /* RSS does not support anything other than hashing
3465          * to queues on src and dst IPs and ports
3466          */
3467         if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
3468                           RXH_L4_B_0_1 | RXH_L4_B_2_3))
3469                 return -EINVAL;
3470
3471         switch (nfc->flow_type) {
3472         case TCP_V4_FLOW:
3473                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
3474                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3475                         hena |=
3476                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK);
3477                 break;
3478         case TCP_V6_FLOW:
3479                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
3480                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3481                         hena |=
3482                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK);
3483                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3484                         hena |=
3485                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK);
3486                 break;
3487         case UDP_V4_FLOW:
3488                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
3489                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3490                         hena |=
3491                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) |
3492                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP);
3493
3494                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
3495                 break;
3496         case UDP_V6_FLOW:
3497                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
3498                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3499                         hena |=
3500                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) |
3501                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP);
3502
3503                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
3504                 break;
3505         case AH_ESP_V4_FLOW:
3506         case AH_V4_FLOW:
3507         case ESP_V4_FLOW:
3508         case SCTP_V4_FLOW:
3509                 if ((nfc->data & RXH_L4_B_0_1) ||
3510                     (nfc->data & RXH_L4_B_2_3))
3511                         return -EINVAL;
3512                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);
3513                 break;
3514         case AH_ESP_V6_FLOW:
3515         case AH_V6_FLOW:
3516         case ESP_V6_FLOW:
3517         case SCTP_V6_FLOW:
3518                 if ((nfc->data & RXH_L4_B_0_1) ||
3519                     (nfc->data & RXH_L4_B_2_3))
3520                         return -EINVAL;
3521                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);
3522                 break;
3523         case IPV4_FLOW:
3524                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) |
3525                         BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
3526                 break;
3527         case IPV6_FLOW:
3528                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) |
3529                         BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
3530                 break;
3531         default:
3532                 return -EINVAL;
3533         }
3534
3535         if (flow_pctype) {
3536                 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0,
3537                                                flow_pctype)) |
3538                         ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1,
3539                                                flow_pctype)) << 32);
3540                 i_set = i40e_get_rss_hash_bits(nfc, i_setc);
3541                 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_pctype),
3542                                   (u32)i_set);
3543                 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_pctype),
3544                                   (u32)(i_set >> 32));
3545                 hena |= BIT_ULL(flow_pctype);
3546         }
3547
3548         i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena);
3549         i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));
3550         i40e_flush(hw);
3551
3552         return 0;
3553 }
3554
3555 /**
3556  * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry
3557  * @vsi: Pointer to the targeted VSI
3558  * @input: The filter to update or NULL to indicate deletion
3559  * @sw_idx: Software index to the filter
3560  * @cmd: The command to get or set Rx flow classification rules
3561  *
3562  * This function updates (or deletes) a Flow Director entry from
3563  * the hlist of the corresponding PF
3564  *
3565  * Returns 0 on success
3566  **/
3567 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi,
3568                                           struct i40e_fdir_filter *input,
3569                                           u16 sw_idx,
3570                                           struct ethtool_rxnfc *cmd)
3571 {
3572         struct i40e_fdir_filter *rule, *parent;
3573         struct i40e_pf *pf = vsi->back;
3574         struct hlist_node *node2;
3575         int err = -EINVAL;
3576
3577         parent = NULL;
3578         rule = NULL;
3579
3580         hlist_for_each_entry_safe(rule, node2,
3581                                   &pf->fdir_filter_list, fdir_node) {
3582                 /* hash found, or no matching entry */
3583                 if (rule->fd_id >= sw_idx)
3584                         break;
3585                 parent = rule;
3586         }
3587
3588         /* if there is an old rule occupying our place remove it */
3589         if (rule && (rule->fd_id == sw_idx)) {
3590                 /* Remove this rule, since we're either deleting it, or
3591                  * replacing it.
3592                  */
3593                 err = i40e_add_del_fdir(vsi, rule, false);
3594                 hlist_del(&rule->fdir_node);
3595                 kfree(rule);
3596                 pf->fdir_pf_active_filters--;
3597         }
3598
3599         /* If we weren't given an input, this is a delete, so just return the
3600          * error code indicating if there was an entry at the requested slot
3601          */
3602         if (!input)
3603                 return err;
3604
3605         /* Otherwise, install the new rule as requested */
3606         INIT_HLIST_NODE(&input->fdir_node);
3607
3608         /* add filter to the list */
3609         if (parent)
3610                 hlist_add_behind(&input->fdir_node, &parent->fdir_node);
3611         else
3612                 hlist_add_head(&input->fdir_node,
3613                                &pf->fdir_filter_list);
3614
3615         /* update counts */
3616         pf->fdir_pf_active_filters++;
3617
3618         return 0;
3619 }
3620
3621 /**
3622  * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table
3623  * @pf: pointer to PF structure
3624  *
3625  * This function searches the list of filters and determines which FLX_PIT
3626  * entries are still required. It will prune any entries which are no longer
3627  * in use after the deletion.
3628  **/
3629 static void i40e_prune_flex_pit_list(struct i40e_pf *pf)
3630 {
3631         struct i40e_flex_pit *entry, *tmp;
3632         struct i40e_fdir_filter *rule;
3633
3634         /* First, we'll check the l3 table */
3635         list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) {
3636                 bool found = false;
3637
3638                 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) {
3639                         if (rule->flow_type != IP_USER_FLOW)
3640                                 continue;
3641                         if (rule->flex_filter &&
3642                             rule->flex_offset == entry->src_offset) {
3643                                 found = true;
3644                                 break;
3645                         }
3646                 }
3647
3648                 /* If we didn't find the filter, then we can prune this entry
3649                  * from the list.
3650                  */
3651                 if (!found) {
3652                         list_del(&entry->list);
3653                         kfree(entry);
3654                 }
3655         }
3656
3657         /* Followed by the L4 table */
3658         list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) {
3659                 bool found = false;
3660
3661                 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) {
3662                         /* Skip this filter if it's L3, since we already
3663                          * checked those in the above loop
3664                          */
3665                         if (rule->flow_type == IP_USER_FLOW)
3666                                 continue;
3667                         if (rule->flex_filter &&
3668                             rule->flex_offset == entry->src_offset) {
3669                                 found = true;
3670                                 break;
3671                         }
3672                 }
3673
3674                 /* If we didn't find the filter, then we can prune this entry
3675                  * from the list.
3676                  */
3677                 if (!found) {
3678                         list_del(&entry->list);
3679                         kfree(entry);
3680                 }
3681         }
3682 }
3683
3684 /**
3685  * i40e_del_fdir_entry - Deletes a Flow Director filter entry
3686  * @vsi: Pointer to the targeted VSI
3687  * @cmd: The command to get or set Rx flow classification rules
3688  *
3689  * The function removes a Flow Director filter entry from the
3690  * hlist of the corresponding PF
3691  *
3692  * Returns 0 on success
3693  */
3694 static int i40e_del_fdir_entry(struct i40e_vsi *vsi,
3695                                struct ethtool_rxnfc *cmd)
3696 {
3697         struct ethtool_rx_flow_spec *fsp =
3698                 (struct ethtool_rx_flow_spec *)&cmd->fs;
3699         struct i40e_pf *pf = vsi->back;
3700         int ret = 0;
3701
3702         if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
3703             test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
3704                 return -EBUSY;
3705
3706         if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))
3707                 return -EBUSY;
3708
3709         ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd);
3710
3711         i40e_prune_flex_pit_list(pf);
3712
3713         i40e_fdir_check_and_reenable(pf);
3714         return ret;
3715 }
3716
3717 /**
3718  * i40e_unused_pit_index - Find an unused PIT index for given list
3719  * @pf: the PF data structure
3720  *
3721  * Find the first unused flexible PIT index entry. We search both the L3 and
3722  * L4 flexible PIT lists so that the returned index is unique and unused by
3723  * either currently programmed L3 or L4 filters. We use a bit field as storage
3724  * to track which indexes are already used.
3725  **/
3726 static u8 i40e_unused_pit_index(struct i40e_pf *pf)
3727 {
3728         unsigned long available_index = 0xFF;
3729         struct i40e_flex_pit *entry;
3730
3731         /* We need to make sure that the new index isn't in use by either L3
3732          * or L4 filters so that IP_USER_FLOW filters can program both L3 and
3733          * L4 to use the same index.
3734          */
3735
3736         list_for_each_entry(entry, &pf->l4_flex_pit_list, list)
3737                 clear_bit(entry->pit_index, &available_index);
3738
3739         list_for_each_entry(entry, &pf->l3_flex_pit_list, list)
3740                 clear_bit(entry->pit_index, &available_index);
3741
3742         return find_first_bit(&available_index, 8);
3743 }
3744
3745 /**
3746  * i40e_find_flex_offset - Find an existing flex src_offset
3747  * @flex_pit_list: L3 or L4 flex PIT list
3748  * @src_offset: new src_offset to find
3749  *
3750  * Searches the flex_pit_list for an existing offset. If no offset is
3751  * currently programmed, then this will return an ERR_PTR if there is no space
3752  * to add a new offset, otherwise it returns NULL.
3753  **/
3754 static
3755 struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list,
3756                                             u16 src_offset)
3757 {
3758         struct i40e_flex_pit *entry;
3759         int size = 0;
3760
3761         /* Search for the src_offset first. If we find a matching entry
3762          * already programmed, we can simply re-use it.
3763          */
3764         list_for_each_entry(entry, flex_pit_list, list) {
3765                 size++;
3766                 if (entry->src_offset == src_offset)
3767                         return entry;
3768         }
3769
3770         /* If we haven't found an entry yet, then the provided src offset has
3771          * not yet been programmed. We will program the src offset later on,
3772          * but we need to indicate whether there is enough space to do so
3773          * here. We'll make use of ERR_PTR for this purpose.
3774          */
3775         if (size >= I40E_FLEX_PIT_TABLE_SIZE)
3776                 return ERR_PTR(-ENOSPC);
3777
3778         return NULL;
3779 }
3780
3781 /**
3782  * i40e_add_flex_offset - Add src_offset to flex PIT table list
3783  * @flex_pit_list: L3 or L4 flex PIT list
3784  * @src_offset: new src_offset to add
3785  * @pit_index: the PIT index to program
3786  *
3787  * This function programs the new src_offset to the list. It is expected that
3788  * i40e_find_flex_offset has already been tried and returned NULL, indicating
3789  * that this offset is not programmed, and that the list has enough space to
3790  * store another offset.
3791  *
3792  * Returns 0 on success, and negative value on error.
3793  **/
3794 static int i40e_add_flex_offset(struct list_head *flex_pit_list,
3795                                 u16 src_offset,
3796                                 u8 pit_index)
3797 {
3798         struct i40e_flex_pit *new_pit, *entry;
3799
3800         new_pit = kzalloc(sizeof(*entry), GFP_KERNEL);
3801         if (!new_pit)
3802                 return -ENOMEM;
3803
3804         new_pit->src_offset = src_offset;
3805         new_pit->pit_index = pit_index;
3806
3807         /* We need to insert this item such that the list is sorted by
3808          * src_offset in ascending order.
3809          */
3810         list_for_each_entry(entry, flex_pit_list, list) {
3811                 if (new_pit->src_offset < entry->src_offset) {
3812                         list_add_tail(&new_pit->list, &entry->list);
3813                         return 0;
3814                 }
3815
3816                 /* If we found an entry with our offset already programmed we
3817                  * can simply return here, after freeing the memory. However,
3818                  * if the pit_index does not match we need to report an error.
3819                  */
3820                 if (new_pit->src_offset == entry->src_offset) {
3821                         int err = 0;
3822
3823                         /* If the PIT index is not the same we can't re-use
3824                          * the entry, so we must report an error.
3825                          */
3826                         if (new_pit->pit_index != entry->pit_index)
3827                                 err = -EINVAL;
3828
3829                         kfree(new_pit);
3830                         return err;
3831                 }
3832         }
3833
3834         /* If we reached here, then we haven't yet added the item. This means
3835          * that we should add the item at the end of the list.
3836          */
3837         list_add_tail(&new_pit->list, flex_pit_list);
3838         return 0;
3839 }
3840
3841 /**
3842  * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table
3843  * @pf: Pointer to the PF structure
3844  * @flex_pit_list: list of flexible src offsets in use
3845  * @flex_pit_start: index to first entry for this section of the table
3846  *
3847  * In order to handle flexible data, the hardware uses a table of values
3848  * called the FLX_PIT table. This table is used to indicate which sections of
3849  * the input correspond to what PIT index values. Unfortunately, hardware is
3850  * very restrictive about programming this table. Entries must be ordered by
3851  * src_offset in ascending order, without duplicates. Additionally, unused
3852  * entries must be set to the unused index value, and must have valid size and
3853  * length according to the src_offset ordering.
3854  *
3855  * This function will reprogram the FLX_PIT register from a book-keeping
3856  * structure that we guarantee is already ordered correctly, and has no more
3857  * than 3 entries.
3858  *
3859  * To make things easier, we only support flexible values of one word length,
3860  * rather than allowing variable length flexible values.
3861  **/
3862 static void __i40e_reprogram_flex_pit(struct i40e_pf *pf,
3863                                       struct list_head *flex_pit_list,
3864                                       int flex_pit_start)
3865 {
3866         struct i40e_flex_pit *entry = NULL;
3867         u16 last_offset = 0;
3868         int i = 0, j = 0;
3869
3870         /* First, loop over the list of flex PIT entries, and reprogram the
3871          * registers.
3872          */
3873         list_for_each_entry(entry, flex_pit_list, list) {
3874                 /* We have to be careful when programming values for the
3875                  * largest SRC_OFFSET value. It is possible that adding
3876                  * additional empty values at the end would overflow the space
3877                  * for the SRC_OFFSET in the FLX_PIT register. To avoid this,
3878                  * we check here and add the empty values prior to adding the
3879                  * largest value.
3880                  *
3881                  * To determine this, we will use a loop from i+1 to 3, which
3882                  * will determine whether the unused entries would have valid
3883                  * SRC_OFFSET. Note that there cannot be extra entries past
3884                  * this value, because the only valid values would have been
3885                  * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not
3886                  * have been added to the list in the first place.
3887                  */
3888                 for (j = i + 1; j < 3; j++) {
3889                         u16 offset = entry->src_offset + j;
3890                         int index = flex_pit_start + i;
3891                         u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED,
3892                                                        1,
3893                                                        offset - 3);
3894
3895                         if (offset > I40E_MAX_FLEX_SRC_OFFSET) {
3896                                 i40e_write_rx_ctl(&pf->hw,
3897                                                   I40E_PRTQF_FLX_PIT(index),
3898                                                   value);
3899                                 i++;
3900                         }
3901                 }
3902
3903                 /* Now, we can program the actual value into the table */
3904                 i40e_write_rx_ctl(&pf->hw,
3905                                   I40E_PRTQF_FLX_PIT(flex_pit_start + i),
3906                                   I40E_FLEX_PREP_VAL(entry->pit_index + 50,
3907                                                      1,
3908                                                      entry->src_offset));
3909                 i++;
3910         }
3911
3912         /* In order to program the last entries in the table, we need to
3913          * determine the valid offset. If the list is empty, we'll just start
3914          * with 0. Otherwise, we'll start with the last item offset and add 1.
3915          * This ensures that all entries have valid sizes. If we don't do this
3916          * correctly, the hardware will disable flexible field parsing.
3917          */
3918         if (!list_empty(flex_pit_list))
3919                 last_offset = list_prev_entry(entry, list)->src_offset + 1;
3920
3921         for (; i < 3; i++, last_offset++) {
3922                 i40e_write_rx_ctl(&pf->hw,
3923                                   I40E_PRTQF_FLX_PIT(flex_pit_start + i),
3924                                   I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED,
3925                                                      1,
3926                                                      last_offset));
3927         }
3928 }
3929
3930 /**
3931  * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change
3932  * @pf: pointer to the PF structure
3933  *
3934  * This function reprograms both the L3 and L4 FLX_PIT tables. See the
3935  * internal helper function for implementation details.
3936  **/
3937 static void i40e_reprogram_flex_pit(struct i40e_pf *pf)
3938 {
3939         __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list,
3940                                   I40E_FLEX_PIT_IDX_START_L3);
3941
3942         __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list,
3943                                   I40E_FLEX_PIT_IDX_START_L4);
3944
3945         /* We also need to program the L3 and L4 GLQF ORT register */
3946         i40e_write_rx_ctl(&pf->hw,
3947                           I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX),
3948                           I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3,
3949                                             3, 1));
3950
3951         i40e_write_rx_ctl(&pf->hw,
3952                           I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX),
3953                           I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4,
3954                                             3, 1));
3955 }
3956
3957 /**
3958  * i40e_flow_str - Converts a flow_type into a human readable string
3959  * @fsp: the flow specification
3960  *
3961  * Currently only flow types we support are included here, and the string
3962  * value attempts to match what ethtool would use to configure this flow type.
3963  **/
3964 static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp)
3965 {
3966         switch (fsp->flow_type & ~FLOW_EXT) {
3967         case TCP_V4_FLOW:
3968                 return "tcp4";
3969         case UDP_V4_FLOW:
3970                 return "udp4";
3971         case SCTP_V4_FLOW:
3972                 return "sctp4";
3973         case IP_USER_FLOW:
3974                 return "ip4";
3975         case TCP_V6_FLOW:
3976                 return "tcp6";
3977         case UDP_V6_FLOW:
3978                 return "udp6";
3979         case SCTP_V6_FLOW:
3980                 return "sctp6";
3981         case IPV6_USER_FLOW:
3982                 return "ip6";
3983         default:
3984                 return "unknown";
3985         }
3986 }
3987
3988 /**
3989  * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index
3990  * @pit_index: PIT index to convert
3991  *
3992  * Returns the mask for a given PIT index. Will return 0 if the pit_index is
3993  * of range.
3994  **/
3995 static u64 i40e_pit_index_to_mask(int pit_index)
3996 {
3997         switch (pit_index) {
3998         case 0:
3999                 return I40E_FLEX_50_MASK;
4000         case 1:
4001                 return I40E_FLEX_51_MASK;
4002         case 2:
4003                 return I40E_FLEX_52_MASK;
4004         case 3:
4005                 return I40E_FLEX_53_MASK;
4006         case 4:
4007                 return I40E_FLEX_54_MASK;
4008         case 5:
4009                 return I40E_FLEX_55_MASK;
4010         case 6:
4011                 return I40E_FLEX_56_MASK;
4012         case 7:
4013                 return I40E_FLEX_57_MASK;
4014         default:
4015                 return 0;
4016         }
4017 }
4018
4019 /**
4020  * i40e_print_input_set - Show changes between two input sets
4021  * @vsi: the vsi being configured
4022  * @old: the old input set
4023  * @new: the new input set
4024  *
4025  * Print the difference between old and new input sets by showing which series
4026  * of words are toggled on or off. Only displays the bits we actually support
4027  * changing.
4028  **/
4029 static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new)
4030 {
4031         struct i40e_pf *pf = vsi->back;
4032         bool old_value, new_value;
4033         int i;
4034
4035         old_value = !!(old & I40E_L3_SRC_MASK);
4036         new_value = !!(new & I40E_L3_SRC_MASK);
4037         if (old_value != new_value)
4038                 netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n",
4039                            old_value ? "ON" : "OFF",
4040                            new_value ? "ON" : "OFF");
4041
4042         old_value = !!(old & I40E_L3_DST_MASK);
4043         new_value = !!(new & I40E_L3_DST_MASK);
4044         if (old_value != new_value)
4045                 netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n",
4046                            old_value ? "ON" : "OFF",
4047                            new_value ? "ON" : "OFF");
4048
4049         old_value = !!(old & I40E_L4_SRC_MASK);
4050         new_value = !!(new & I40E_L4_SRC_MASK);
4051         if (old_value != new_value)
4052                 netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n",
4053                            old_value ? "ON" : "OFF",
4054                            new_value ? "ON" : "OFF");
4055
4056         old_value = !!(old & I40E_L4_DST_MASK);
4057         new_value = !!(new & I40E_L4_DST_MASK);
4058         if (old_value != new_value)
4059                 netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n",
4060                            old_value ? "ON" : "OFF",
4061                            new_value ? "ON" : "OFF");
4062
4063         old_value = !!(old & I40E_VERIFY_TAG_MASK);
4064         new_value = !!(new & I40E_VERIFY_TAG_MASK);
4065         if (old_value != new_value)
4066                 netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n",
4067                            old_value ? "ON" : "OFF",
4068                            new_value ? "ON" : "OFF");
4069
4070         /* Show change of flexible filter entries */
4071         for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) {
4072                 u64 flex_mask = i40e_pit_index_to_mask(i);
4073
4074                 old_value = !!(old & flex_mask);
4075                 new_value = !!(new & flex_mask);
4076                 if (old_value != new_value)
4077                         netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n",
4078                                    i,
4079                                    old_value ? "ON" : "OFF",
4080                                    new_value ? "ON" : "OFF");
4081         }
4082
4083         netif_info(pf, drv, vsi->netdev, "  Current input set: %0llx\n",
4084                    old);
4085         netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n",
4086                    new);
4087 }
4088
4089 /**
4090  * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid
4091  * @vsi: pointer to the targeted VSI
4092  * @fsp: pointer to Rx flow specification
4093  * @userdef: userdefined data from flow specification
4094  *
4095  * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support
4096  * for partial matches exists with a few limitations. First, hardware only
4097  * supports masking by word boundary (2 bytes) and not per individual bit.
4098  * Second, hardware is limited to using one mask for a flow type and cannot
4099  * use a separate mask for each filter.
4100  *
4101  * To support these limitations, if we already have a configured filter for
4102  * the specified type, this function enforces that new filters of the type
4103  * match the configured input set. Otherwise, if we do not have a filter of
4104  * the specified type, we allow the input set to be updated to match the
4105  * desired filter.
4106  *
4107  * To help ensure that administrators understand why filters weren't displayed
4108  * as supported, we print a diagnostic message displaying how the input set
4109  * would change and warning to delete the preexisting filters if required.
4110  *
4111  * Returns 0 on successful input set match, and a negative return code on
4112  * failure.
4113  **/
4114 static int i40e_check_fdir_input_set(struct i40e_vsi *vsi,
4115                                      struct ethtool_rx_flow_spec *fsp,
4116                                      struct i40e_rx_flow_userdef *userdef)
4117 {
4118         static const __be32 ipv6_full_mask[4] = {cpu_to_be32(0xffffffff),
4119                 cpu_to_be32(0xffffffff), cpu_to_be32(0xffffffff),
4120                 cpu_to_be32(0xffffffff)};
4121         struct ethtool_tcpip6_spec *tcp_ip6_spec;
4122         struct ethtool_usrip6_spec *usr_ip6_spec;
4123         struct ethtool_tcpip4_spec *tcp_ip4_spec;
4124         struct ethtool_usrip4_spec *usr_ip4_spec;
4125         struct i40e_pf *pf = vsi->back;
4126         u64 current_mask, new_mask;
4127         bool new_flex_offset = false;
4128         bool flex_l3 = false;
4129         u16 *fdir_filter_count;
4130         u16 index, src_offset = 0;
4131         u8 pit_index = 0;
4132         int err;
4133
4134         switch (fsp->flow_type & ~FLOW_EXT) {
4135         case SCTP_V4_FLOW:
4136                 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP;
4137                 fdir_filter_count = &pf->fd_sctp4_filter_cnt;
4138                 break;
4139         case TCP_V4_FLOW:
4140                 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
4141                 fdir_filter_count = &pf->fd_tcp4_filter_cnt;
4142                 break;
4143         case UDP_V4_FLOW:
4144                 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
4145                 fdir_filter_count = &pf->fd_udp4_filter_cnt;
4146                 break;
4147         case SCTP_V6_FLOW:
4148                 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP;
4149                 fdir_filter_count = &pf->fd_sctp6_filter_cnt;
4150                 break;
4151         case TCP_V6_FLOW:
4152                 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
4153                 fdir_filter_count = &pf->fd_tcp6_filter_cnt;
4154                 break;
4155         case UDP_V6_FLOW:
4156                 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
4157                 fdir_filter_count = &pf->fd_udp6_filter_cnt;
4158                 break;
4159         case IP_USER_FLOW:
4160                 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;
4161                 fdir_filter_count = &pf->fd_ip4_filter_cnt;
4162                 flex_l3 = true;
4163                 break;
4164         case IPV6_USER_FLOW:
4165                 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER;
4166                 fdir_filter_count = &pf->fd_ip6_filter_cnt;
4167                 flex_l3 = true;
4168                 break;
4169         default:
4170                 return -EOPNOTSUPP;
4171         }
4172
4173         /* Read the current input set from register memory. */
4174         current_mask = i40e_read_fd_input_set(pf, index);
4175         new_mask = current_mask;
4176
4177         /* Determine, if any, the required changes to the input set in order
4178          * to support the provided mask.
4179          *
4180          * Hardware only supports masking at word (2 byte) granularity and does
4181          * not support full bitwise masking. This implementation simplifies
4182          * even further and only supports fully enabled or fully disabled
4183          * masks for each field, even though we could split the ip4src and
4184          * ip4dst fields.
4185          */
4186         switch (fsp->flow_type & ~FLOW_EXT) {
4187         case SCTP_V4_FLOW:
4188                 new_mask &= ~I40E_VERIFY_TAG_MASK;
4189                 fallthrough;
4190         case TCP_V4_FLOW:
4191         case UDP_V4_FLOW:
4192                 tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec;
4193
4194                 /* IPv4 source address */
4195                 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF))
4196                         new_mask |= I40E_L3_SRC_MASK;
4197                 else if (!tcp_ip4_spec->ip4src)
4198                         new_mask &= ~I40E_L3_SRC_MASK;
4199                 else
4200                         return -EOPNOTSUPP;
4201
4202                 /* IPv4 destination address */
4203                 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF))
4204                         new_mask |= I40E_L3_DST_MASK;
4205                 else if (!tcp_ip4_spec->ip4dst)
4206                         new_mask &= ~I40E_L3_DST_MASK;
4207                 else
4208                         return -EOPNOTSUPP;
4209
4210                 /* L4 source port */
4211                 if (tcp_ip4_spec->psrc == htons(0xFFFF))
4212                         new_mask |= I40E_L4_SRC_MASK;
4213                 else if (!tcp_ip4_spec->psrc)
4214                         new_mask &= ~I40E_L4_SRC_MASK;
4215                 else
4216                         return -EOPNOTSUPP;
4217
4218                 /* L4 destination port */
4219                 if (tcp_ip4_spec->pdst == htons(0xFFFF))
4220                         new_mask |= I40E_L4_DST_MASK;
4221                 else if (!tcp_ip4_spec->pdst)
4222                         new_mask &= ~I40E_L4_DST_MASK;
4223                 else
4224                         return -EOPNOTSUPP;
4225
4226                 /* Filtering on Type of Service is not supported. */
4227                 if (tcp_ip4_spec->tos)
4228                         return -EOPNOTSUPP;
4229
4230                 break;
4231         case SCTP_V6_FLOW:
4232                 new_mask &= ~I40E_VERIFY_TAG_MASK;
4233                 fallthrough;
4234         case TCP_V6_FLOW:
4235         case UDP_V6_FLOW:
4236                 tcp_ip6_spec = &fsp->m_u.tcp_ip6_spec;
4237
4238                 /* Check if user provided IPv6 source address. */
4239                 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6src,
4240                                     (struct in6_addr *)&ipv6_full_mask))
4241                         new_mask |= I40E_L3_V6_SRC_MASK;
4242                 else if (ipv6_addr_any((struct in6_addr *)
4243                                        &tcp_ip6_spec->ip6src))
4244                         new_mask &= ~I40E_L3_V6_SRC_MASK;
4245                 else
4246                         return -EOPNOTSUPP;
4247
4248                 /* Check if user provided destination address. */
4249                 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6dst,
4250                                     (struct in6_addr *)&ipv6_full_mask))
4251                         new_mask |= I40E_L3_V6_DST_MASK;
4252                 else if (ipv6_addr_any((struct in6_addr *)
4253                                        &tcp_ip6_spec->ip6dst))
4254                         new_mask &= ~I40E_L3_V6_DST_MASK;
4255                 else
4256                         return -EOPNOTSUPP;
4257
4258                 /* L4 source port */
4259                 if (tcp_ip6_spec->psrc == htons(0xFFFF))
4260                         new_mask |= I40E_L4_SRC_MASK;
4261                 else if (!tcp_ip6_spec->psrc)
4262                         new_mask &= ~I40E_L4_SRC_MASK;
4263                 else
4264                         return -EOPNOTSUPP;
4265
4266                 /* L4 destination port */
4267                 if (tcp_ip6_spec->pdst == htons(0xFFFF))
4268                         new_mask |= I40E_L4_DST_MASK;
4269                 else if (!tcp_ip6_spec->pdst)
4270                         new_mask &= ~I40E_L4_DST_MASK;
4271                 else
4272                         return -EOPNOTSUPP;
4273
4274                 /* Filtering on Traffic Classes is not supported. */
4275                 if (tcp_ip6_spec->tclass)
4276                         return -EOPNOTSUPP;
4277                 break;
4278         case IP_USER_FLOW:
4279                 usr_ip4_spec = &fsp->m_u.usr_ip4_spec;
4280
4281                 /* IPv4 source address */
4282                 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF))
4283                         new_mask |= I40E_L3_SRC_MASK;
4284                 else if (!usr_ip4_spec->ip4src)
4285                         new_mask &= ~I40E_L3_SRC_MASK;
4286                 else
4287                         return -EOPNOTSUPP;
4288
4289                 /* IPv4 destination address */
4290                 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF))
4291                         new_mask |= I40E_L3_DST_MASK;
4292                 else if (!usr_ip4_spec->ip4dst)
4293                         new_mask &= ~I40E_L3_DST_MASK;
4294                 else
4295                         return -EOPNOTSUPP;
4296
4297                 /* First 4 bytes of L4 header */
4298                 if (usr_ip4_spec->l4_4_bytes == htonl(0xFFFFFFFF))
4299                         new_mask |= I40E_L4_SRC_MASK | I40E_L4_DST_MASK;
4300                 else if (!usr_ip4_spec->l4_4_bytes)
4301                         new_mask &= ~(I40E_L4_SRC_MASK | I40E_L4_DST_MASK);
4302                 else
4303                         return -EOPNOTSUPP;
4304
4305                 /* Filtering on Type of Service is not supported. */
4306                 if (usr_ip4_spec->tos)
4307                         return -EOPNOTSUPP;
4308
4309                 /* Filtering on IP version is not supported */
4310                 if (usr_ip4_spec->ip_ver)
4311                         return -EINVAL;
4312
4313                 /* Filtering on L4 protocol is not supported */
4314                 if (usr_ip4_spec->proto)
4315                         return -EINVAL;
4316
4317                 break;
4318         case IPV6_USER_FLOW:
4319                 usr_ip6_spec = &fsp->m_u.usr_ip6_spec;
4320
4321                 /* Check if user provided IPv6 source address. */
4322                 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6src,
4323                                     (struct in6_addr *)&ipv6_full_mask))
4324                         new_mask |= I40E_L3_V6_SRC_MASK;
4325                 else if (ipv6_addr_any((struct in6_addr *)
4326                                        &usr_ip6_spec->ip6src))
4327                         new_mask &= ~I40E_L3_V6_SRC_MASK;
4328                 else
4329                         return -EOPNOTSUPP;
4330
4331                 /* Check if user provided destination address. */
4332                 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6dst,
4333                                     (struct in6_addr *)&ipv6_full_mask))
4334                         new_mask |= I40E_L3_V6_DST_MASK;
4335                 else if (ipv6_addr_any((struct in6_addr *)
4336                                        &usr_ip6_spec->ip6src))
4337                         new_mask &= ~I40E_L3_V6_DST_MASK;
4338                 else
4339                         return -EOPNOTSUPP;
4340
4341                 if (usr_ip6_spec->l4_4_bytes == htonl(0xFFFFFFFF))
4342                         new_mask |= I40E_L4_SRC_MASK | I40E_L4_DST_MASK;
4343                 else if (!usr_ip6_spec->l4_4_bytes)
4344                         new_mask &= ~(I40E_L4_SRC_MASK | I40E_L4_DST_MASK);
4345                 else
4346                         return -EOPNOTSUPP;
4347
4348                 /* Filtering on Traffic class is not supported. */
4349                 if (usr_ip6_spec->tclass)
4350                         return -EOPNOTSUPP;
4351
4352                 /* Filtering on L4 protocol is not supported */
4353                 if (usr_ip6_spec->l4_proto)
4354                         return -EINVAL;
4355
4356                 break;
4357         default:
4358                 return -EOPNOTSUPP;
4359         }
4360
4361         if (fsp->flow_type & FLOW_EXT) {
4362                 /* Allow only 802.1Q and no etype defined, as
4363                  * later it's modified to 0x8100
4364                  */
4365                 if (fsp->h_ext.vlan_etype != htons(ETH_P_8021Q) &&
4366                     fsp->h_ext.vlan_etype != 0)
4367                         return -EOPNOTSUPP;
4368                 if (fsp->m_ext.vlan_tci == htons(0xFFFF))
4369                         new_mask |= I40E_VLAN_SRC_MASK;
4370                 else
4371                         new_mask &= ~I40E_VLAN_SRC_MASK;
4372         }
4373
4374         /* First, clear all flexible filter entries */
4375         new_mask &= ~I40E_FLEX_INPUT_MASK;
4376
4377         /* If we have a flexible filter, try to add this offset to the correct
4378          * flexible filter PIT list. Once finished, we can update the mask.
4379          * If the src_offset changed, we will get a new mask value which will
4380          * trigger an input set change.
4381          */
4382         if (userdef->flex_filter) {
4383                 struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL;
4384
4385                 /* Flexible offset must be even, since the flexible payload
4386                  * must be aligned on 2-byte boundary.
4387                  */
4388                 if (userdef->flex_offset & 0x1) {
4389                         dev_warn(&pf->pdev->dev,
4390                                  "Flexible data offset must be 2-byte aligned\n");
4391                         return -EINVAL;
4392                 }
4393
4394                 src_offset = userdef->flex_offset >> 1;
4395
4396                 /* FLX_PIT source offset value is only so large */
4397                 if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) {
4398                         dev_warn(&pf->pdev->dev,
4399                                  "Flexible data must reside within first 64 bytes of the packet payload\n");
4400                         return -EINVAL;
4401                 }
4402
4403                 /* See if this offset has already been programmed. If we get
4404                  * an ERR_PTR, then the filter is not safe to add. Otherwise,
4405                  * if we get a NULL pointer, this means we will need to add
4406                  * the offset.
4407                  */
4408                 flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list,
4409                                                  src_offset);
4410                 if (IS_ERR(flex_pit))
4411                         return PTR_ERR(flex_pit);
4412
4413                 /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown)
4414                  * packet types, and thus we need to program both L3 and L4
4415                  * flexible values. These must have identical flexible index,
4416                  * as otherwise we can't correctly program the input set. So
4417                  * we'll find both an L3 and L4 index and make sure they are
4418                  * the same.
4419                  */
4420                 if (flex_l3) {
4421                         l3_flex_pit =
4422                                 i40e_find_flex_offset(&pf->l3_flex_pit_list,
4423                                                       src_offset);
4424                         if (IS_ERR(l3_flex_pit))
4425                                 return PTR_ERR(l3_flex_pit);
4426
4427                         if (flex_pit) {
4428                                 /* If we already had a matching L4 entry, we
4429                                  * need to make sure that the L3 entry we
4430                                  * obtained uses the same index.
4431                                  */
4432                                 if (l3_flex_pit) {
4433                                         if (l3_flex_pit->pit_index !=
4434                                             flex_pit->pit_index) {
4435                                                 return -EINVAL;
4436                                         }
4437                                 } else {
4438                                         new_flex_offset = true;
4439                                 }
4440                         } else {
4441                                 flex_pit = l3_flex_pit;
4442                         }
4443                 }
4444
4445                 /* If we didn't find an existing flex offset, we need to
4446                  * program a new one. However, we don't immediately program it
4447                  * here because we will wait to program until after we check
4448                  * that it is safe to change the input set.
4449                  */
4450                 if (!flex_pit) {
4451                         new_flex_offset = true;
4452                         pit_index = i40e_unused_pit_index(pf);
4453                 } else {
4454                         pit_index = flex_pit->pit_index;
4455                 }
4456
4457                 /* Update the mask with the new offset */
4458                 new_mask |= i40e_pit_index_to_mask(pit_index);
4459         }
4460
4461         /* If the mask and flexible filter offsets for this filter match the
4462          * currently programmed values we don't need any input set change, so
4463          * this filter is safe to install.
4464          */
4465         if (new_mask == current_mask && !new_flex_offset)
4466                 return 0;
4467
4468         netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n",
4469                    i40e_flow_str(fsp));
4470         i40e_print_input_set(vsi, current_mask, new_mask);
4471         if (new_flex_offset) {
4472                 netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d",
4473                            pit_index, src_offset);
4474         }
4475
4476         /* Hardware input sets are global across multiple ports, so even the
4477          * main port cannot change them when in MFP mode as this would impact
4478          * any filters on the other ports.
4479          */
4480         if (pf->flags & I40E_FLAG_MFP_ENABLED) {
4481                 netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n");
4482                 return -EOPNOTSUPP;
4483         }
4484
4485         /* This filter requires us to update the input set. However, hardware
4486          * only supports one input set per flow type, and does not support
4487          * separate masks for each filter. This means that we can only support
4488          * a single mask for all filters of a specific type.
4489          *
4490          * If we have preexisting filters, they obviously depend on the
4491          * current programmed input set. Display a diagnostic message in this
4492          * case explaining why the filter could not be accepted.
4493          */
4494         if (*fdir_filter_count) {
4495                 netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n",
4496                           i40e_flow_str(fsp),
4497                           *fdir_filter_count);
4498                 return -EOPNOTSUPP;
4499         }
4500
4501         i40e_write_fd_input_set(pf, index, new_mask);
4502
4503         /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented
4504          * frames. If we're programming the input set for IPv4/Other, we also
4505          * need to program the IPv4/Fragmented input set. Since we don't have
4506          * separate support, we'll always assume and enforce that the two flow
4507          * types must have matching input sets.
4508          */
4509         if (index == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER)
4510                 i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4,
4511                                         new_mask);
4512
4513         /* Add the new offset and update table, if necessary */
4514         if (new_flex_offset) {
4515                 err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset,
4516                                            pit_index);
4517                 if (err)
4518                         return err;
4519
4520                 if (flex_l3) {
4521                         err = i40e_add_flex_offset(&pf->l3_flex_pit_list,
4522                                                    src_offset,
4523                                                    pit_index);
4524                         if (err)
4525                                 return err;
4526                 }
4527
4528                 i40e_reprogram_flex_pit(pf);
4529         }
4530
4531         return 0;
4532 }
4533
4534 /**
4535  * i40e_match_fdir_filter - Return true of two filters match
4536  * @a: pointer to filter struct
4537  * @b: pointer to filter struct
4538  *
4539  * Returns true if the two filters match exactly the same criteria. I.e. they
4540  * match the same flow type and have the same parameters. We don't need to
4541  * check any input-set since all filters of the same flow type must use the
4542  * same input set.
4543  **/
4544 static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a,
4545                                    struct i40e_fdir_filter *b)
4546 {
4547         /* The filters do not much if any of these criteria differ. */
4548         if (a->dst_ip != b->dst_ip ||
4549             a->src_ip != b->src_ip ||
4550             a->dst_port != b->dst_port ||
4551             a->src_port != b->src_port ||
4552             a->flow_type != b->flow_type ||
4553             a->ipl4_proto != b->ipl4_proto ||
4554             a->vlan_tag != b->vlan_tag ||
4555             a->vlan_etype != b->vlan_etype)
4556                 return false;
4557
4558         return true;
4559 }
4560
4561 /**
4562  * i40e_disallow_matching_filters - Check that new filters differ
4563  * @vsi: pointer to the targeted VSI
4564  * @input: new filter to check
4565  *
4566  * Due to hardware limitations, it is not possible for two filters that match
4567  * similar criteria to be programmed at the same time. This is true for a few
4568  * reasons:
4569  *
4570  * (a) all filters matching a particular flow type must use the same input
4571  * set, that is they must match the same criteria.
4572  * (b) different flow types will never match the same packet, as the flow type
4573  * is decided by hardware before checking which rules apply.
4574  * (c) hardware has no way to distinguish which order filters apply in.
4575  *
4576  * Due to this, we can't really support using the location data to order
4577  * filters in the hardware parsing. It is technically possible for the user to
4578  * request two filters matching the same criteria but which select different
4579  * queues. In this case, rather than keep both filters in the list, we reject
4580  * the 2nd filter when the user requests adding it.
4581  *
4582  * This avoids needing to track location for programming the filter to
4583  * hardware, and ensures that we avoid some strange scenarios involving
4584  * deleting filters which match the same criteria.
4585  **/
4586 static int i40e_disallow_matching_filters(struct i40e_vsi *vsi,
4587                                           struct i40e_fdir_filter *input)
4588 {
4589         struct i40e_pf *pf = vsi->back;
4590         struct i40e_fdir_filter *rule;
4591         struct hlist_node *node2;
4592
4593         /* Loop through every filter, and check that it doesn't match */
4594         hlist_for_each_entry_safe(rule, node2,
4595                                   &pf->fdir_filter_list, fdir_node) {
4596                 /* Don't check the filters match if they share the same fd_id,
4597                  * since the new filter is actually just updating the target
4598                  * of the old filter.
4599                  */
4600                 if (rule->fd_id == input->fd_id)
4601                         continue;
4602
4603                 /* If any filters match, then print a warning message to the
4604                  * kernel message buffer and bail out.
4605                  */
4606                 if (i40e_match_fdir_filter(rule, input)) {
4607                         dev_warn(&pf->pdev->dev,
4608                                  "Existing user defined filter %d already matches this flow.\n",
4609                                  rule->fd_id);
4610                         return -EINVAL;
4611                 }
4612         }
4613
4614         return 0;
4615 }
4616
4617 /**
4618  * i40e_add_fdir_ethtool - Add/Remove Flow Director filters
4619  * @vsi: pointer to the targeted VSI
4620  * @cmd: command to get or set RX flow classification rules
4621  *
4622  * Add Flow Director filters for a specific flow spec based on their
4623  * protocol.  Returns 0 if the filters were successfully added.
4624  **/
4625 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
4626                                  struct ethtool_rxnfc *cmd)
4627 {
4628         struct i40e_rx_flow_userdef userdef;
4629         struct ethtool_rx_flow_spec *fsp;
4630         struct i40e_fdir_filter *input;
4631         u16 dest_vsi = 0, q_index = 0;
4632         struct i40e_pf *pf;
4633         int ret = -EINVAL;
4634         u8 dest_ctl;
4635
4636         if (!vsi)
4637                 return -EINVAL;
4638         pf = vsi->back;
4639
4640         if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
4641                 return -EOPNOTSUPP;
4642
4643         if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state))
4644                 return -ENOSPC;
4645
4646         if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
4647             test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
4648                 return -EBUSY;
4649
4650         if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))
4651                 return -EBUSY;
4652
4653         fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
4654
4655         /* Parse the user-defined field */
4656         if (i40e_parse_rx_flow_user_data(fsp, &userdef))
4657                 return -EINVAL;
4658
4659         /* Extended MAC field is not supported */
4660         if (fsp->flow_type & FLOW_MAC_EXT)
4661                 return -EINVAL;
4662
4663         ret = i40e_check_fdir_input_set(vsi, fsp, &userdef);
4664         if (ret)
4665                 return ret;
4666
4667         if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort +
4668                               pf->hw.func_caps.fd_filters_guaranteed)) {
4669                 return -EINVAL;
4670         }
4671
4672         /* ring_cookie is either the drop index, or is a mask of the queue
4673          * index and VF id we wish to target.
4674          */
4675         if (fsp->ring_cookie == RX_CLS_FLOW_DISC) {
4676                 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
4677         } else {
4678                 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie);
4679                 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie);
4680
4681                 if (!vf) {
4682                         if (ring >= vsi->num_queue_pairs)
4683                                 return -EINVAL;
4684                         dest_vsi = vsi->id;
4685                 } else {
4686                         /* VFs are zero-indexed, so we subtract one here */
4687                         vf--;
4688
4689                         if (vf >= pf->num_alloc_vfs)
4690                                 return -EINVAL;
4691                         if (ring >= pf->vf[vf].num_queue_pairs)
4692                                 return -EINVAL;
4693                         dest_vsi = pf->vf[vf].lan_vsi_id;
4694                 }
4695                 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
4696                 q_index = ring;
4697         }
4698
4699         input = kzalloc(sizeof(*input), GFP_KERNEL);
4700
4701         if (!input)
4702                 return -ENOMEM;
4703
4704         input->fd_id = fsp->location;
4705         input->q_index = q_index;
4706         input->dest_vsi = dest_vsi;
4707         input->dest_ctl = dest_ctl;
4708         input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID;
4709         input->cnt_index  = I40E_FD_SB_STAT_IDX(pf->hw.pf_id);
4710         input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src;
4711         input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
4712         input->flow_type = fsp->flow_type & ~FLOW_EXT;
4713
4714         input->vlan_etype = fsp->h_ext.vlan_etype;
4715         if (!fsp->m_ext.vlan_etype && fsp->h_ext.vlan_tci)
4716                 input->vlan_etype = cpu_to_be16(ETH_P_8021Q);
4717         if (fsp->m_ext.vlan_tci && input->vlan_etype)
4718                 input->vlan_tag = fsp->h_ext.vlan_tci;
4719         if (input->flow_type == IPV6_USER_FLOW ||
4720             input->flow_type == UDP_V6_FLOW ||
4721             input->flow_type == TCP_V6_FLOW ||
4722             input->flow_type == SCTP_V6_FLOW) {
4723                 /* Reverse the src and dest notion, since the HW expects them
4724                  * to be from Tx perspective where as the input from user is
4725                  * from Rx filter view.
4726                  */
4727                 input->ipl4_proto = fsp->h_u.usr_ip6_spec.l4_proto;
4728                 input->dst_port = fsp->h_u.tcp_ip6_spec.psrc;
4729                 input->src_port = fsp->h_u.tcp_ip6_spec.pdst;
4730                 memcpy(input->dst_ip6, fsp->h_u.ah_ip6_spec.ip6src,
4731                        sizeof(__be32) * 4);
4732                 memcpy(input->src_ip6, fsp->h_u.ah_ip6_spec.ip6dst,
4733                        sizeof(__be32) * 4);
4734         } else {
4735                 /* Reverse the src and dest notion, since the HW expects them
4736                  * to be from Tx perspective where as the input from user is
4737                  * from Rx filter view.
4738                  */
4739                 input->ipl4_proto = fsp->h_u.usr_ip4_spec.proto;
4740                 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc;
4741                 input->src_port = fsp->h_u.tcp_ip4_spec.pdst;
4742                 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src;
4743                 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
4744         }
4745
4746         if (userdef.flex_filter) {
4747                 input->flex_filter = true;
4748                 input->flex_word = cpu_to_be16(userdef.flex_word);
4749                 input->flex_offset = userdef.flex_offset;
4750         }
4751
4752         /* Avoid programming two filters with identical match criteria. */
4753         ret = i40e_disallow_matching_filters(vsi, input);
4754         if (ret)
4755                 goto free_filter_memory;
4756
4757         /* Add the input filter to the fdir_input_list, possibly replacing
4758          * a previous filter. Do not free the input structure after adding it
4759          * to the list as this would cause a use-after-free bug.
4760          */
4761         i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL);
4762         ret = i40e_add_del_fdir(vsi, input, true);
4763         if (ret)
4764                 goto remove_sw_rule;
4765         return 0;
4766
4767 remove_sw_rule:
4768         hlist_del(&input->fdir_node);
4769         pf->fdir_pf_active_filters--;
4770 free_filter_memory:
4771         kfree(input);
4772         return ret;
4773 }
4774
4775 /**
4776  * i40e_set_rxnfc - command to set RX flow classification rules
4777  * @netdev: network interface device structure
4778  * @cmd: ethtool rxnfc command
4779  *
4780  * Returns Success if the command is supported.
4781  **/
4782 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
4783 {
4784         struct i40e_netdev_priv *np = netdev_priv(netdev);
4785         struct i40e_vsi *vsi = np->vsi;
4786         struct i40e_pf *pf = vsi->back;
4787         int ret = -EOPNOTSUPP;
4788
4789         switch (cmd->cmd) {
4790         case ETHTOOL_SRXFH:
4791                 ret = i40e_set_rss_hash_opt(pf, cmd);
4792                 break;
4793         case ETHTOOL_SRXCLSRLINS:
4794                 ret = i40e_add_fdir_ethtool(vsi, cmd);
4795                 break;
4796         case ETHTOOL_SRXCLSRLDEL:
4797                 ret = i40e_del_fdir_entry(vsi, cmd);
4798                 break;
4799         default:
4800                 break;
4801         }
4802
4803         return ret;
4804 }
4805
4806 /**
4807  * i40e_max_channels - get Max number of combined channels supported
4808  * @vsi: vsi pointer
4809  **/
4810 static unsigned int i40e_max_channels(struct i40e_vsi *vsi)
4811 {
4812         /* TODO: This code assumes DCB and FD is disabled for now. */
4813         return vsi->alloc_queue_pairs;
4814 }
4815
4816 /**
4817  * i40e_get_channels - Get the current channels enabled and max supported etc.
4818  * @dev: network interface device structure
4819  * @ch: ethtool channels structure
4820  *
4821  * We don't support separate tx and rx queues as channels. The other count
4822  * represents how many queues are being used for control. max_combined counts
4823  * how many queue pairs we can support. They may not be mapped 1 to 1 with
4824  * q_vectors since we support a lot more queue pairs than q_vectors.
4825  **/
4826 static void i40e_get_channels(struct net_device *dev,
4827                               struct ethtool_channels *ch)
4828 {
4829         struct i40e_netdev_priv *np = netdev_priv(dev);
4830         struct i40e_vsi *vsi = np->vsi;
4831         struct i40e_pf *pf = vsi->back;
4832
4833         /* report maximum channels */
4834         ch->max_combined = i40e_max_channels(vsi);
4835
4836         /* report info for other vector */
4837         ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0;
4838         ch->max_other = ch->other_count;
4839
4840         /* Note: This code assumes DCB is disabled for now. */
4841         ch->combined_count = vsi->num_queue_pairs;
4842 }
4843
4844 /**
4845  * i40e_set_channels - Set the new channels count.
4846  * @dev: network interface device structure
4847  * @ch: ethtool channels structure
4848  *
4849  * The new channels count may not be the same as requested by the user
4850  * since it gets rounded down to a power of 2 value.
4851  **/
4852 static int i40e_set_channels(struct net_device *dev,
4853                              struct ethtool_channels *ch)
4854 {
4855         const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
4856         struct i40e_netdev_priv *np = netdev_priv(dev);
4857         unsigned int count = ch->combined_count;
4858         struct i40e_vsi *vsi = np->vsi;
4859         struct i40e_pf *pf = vsi->back;
4860         struct i40e_fdir_filter *rule;
4861         struct hlist_node *node2;
4862         int new_count;
4863         int err = 0;
4864
4865         /* We do not support setting channels for any other VSI at present */
4866         if (vsi->type != I40E_VSI_MAIN)
4867                 return -EINVAL;
4868
4869         /* We do not support setting channels via ethtool when TCs are
4870          * configured through mqprio
4871          */
4872         if (pf->flags & I40E_FLAG_TC_MQPRIO)
4873                 return -EINVAL;
4874
4875         /* verify they are not requesting separate vectors */
4876         if (!count || ch->rx_count || ch->tx_count)
4877                 return -EINVAL;
4878
4879         /* verify other_count has not changed */
4880         if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0))
4881                 return -EINVAL;
4882
4883         /* verify the number of channels does not exceed hardware limits */
4884         if (count > i40e_max_channels(vsi))
4885                 return -EINVAL;
4886
4887         /* verify that the number of channels does not invalidate any current
4888          * flow director rules
4889          */
4890         hlist_for_each_entry_safe(rule, node2,
4891                                   &pf->fdir_filter_list, fdir_node) {
4892                 if (rule->dest_ctl != drop && count <= rule->q_index) {
4893                         dev_warn(&pf->pdev->dev,
4894                                  "Existing user defined filter %d assigns flow to queue %d\n",
4895                                  rule->fd_id, rule->q_index);
4896                         err = -EINVAL;
4897                 }
4898         }
4899
4900         if (err) {
4901                 dev_err(&pf->pdev->dev,
4902                         "Existing filter rules must be deleted to reduce combined channel count to %d\n",
4903                         count);
4904                 return err;
4905         }
4906
4907         /* update feature limits from largest to smallest supported values */
4908         /* TODO: Flow director limit, DCB etc */
4909
4910         /* use rss_reconfig to rebuild with new queue count and update traffic
4911          * class queue mapping
4912          */
4913         new_count = i40e_reconfig_rss_queues(pf, count);
4914         if (new_count > 0)
4915                 return 0;
4916         else
4917                 return -EINVAL;
4918 }
4919
4920 /**
4921  * i40e_get_rxfh_key_size - get the RSS hash key size
4922  * @netdev: network interface device structure
4923  *
4924  * Returns the table size.
4925  **/
4926 static u32 i40e_get_rxfh_key_size(struct net_device *netdev)
4927 {
4928         return I40E_HKEY_ARRAY_SIZE;
4929 }
4930
4931 /**
4932  * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size
4933  * @netdev: network interface device structure
4934  *
4935  * Returns the table size.
4936  **/
4937 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev)
4938 {
4939         return I40E_HLUT_ARRAY_SIZE;
4940 }
4941
4942 /**
4943  * i40e_get_rxfh - get the rx flow hash indirection table
4944  * @netdev: network interface device structure
4945  * @indir: indirection table
4946  * @key: hash key
4947  * @hfunc: hash function
4948  *
4949  * Reads the indirection table directly from the hardware. Returns 0 on
4950  * success.
4951  **/
4952 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
4953                          u8 *hfunc)
4954 {
4955         struct i40e_netdev_priv *np = netdev_priv(netdev);
4956         struct i40e_vsi *vsi = np->vsi;
4957         u8 *lut, *seed = NULL;
4958         int ret;
4959         u16 i;
4960
4961         if (hfunc)
4962                 *hfunc = ETH_RSS_HASH_TOP;
4963
4964         if (!indir)
4965                 return 0;
4966
4967         seed = key;
4968         lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
4969         if (!lut)
4970                 return -ENOMEM;
4971         ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE);
4972         if (ret)
4973                 goto out;
4974         for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
4975                 indir[i] = (u32)(lut[i]);
4976
4977 out:
4978         kfree(lut);
4979
4980         return ret;
4981 }
4982
4983 /**
4984  * i40e_set_rxfh - set the rx flow hash indirection table
4985  * @netdev: network interface device structure
4986  * @indir: indirection table
4987  * @key: hash key
4988  * @hfunc: hash function to use
4989  *
4990  * Returns -EINVAL if the table specifies an invalid queue id, otherwise
4991  * returns 0 after programming the table.
4992  **/
4993 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir,
4994                          const u8 *key, const u8 hfunc)
4995 {
4996         struct i40e_netdev_priv *np = netdev_priv(netdev);
4997         struct i40e_vsi *vsi = np->vsi;
4998         struct i40e_pf *pf = vsi->back;
4999         u8 *seed = NULL;
5000         u16 i;
5001
5002         if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
5003                 return -EOPNOTSUPP;
5004
5005         if (key) {
5006                 if (!vsi->rss_hkey_user) {
5007                         vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE,
5008                                                      GFP_KERNEL);
5009                         if (!vsi->rss_hkey_user)
5010                                 return -ENOMEM;
5011                 }
5012                 memcpy(vsi->rss_hkey_user, key, I40E_HKEY_ARRAY_SIZE);
5013                 seed = vsi->rss_hkey_user;
5014         }
5015         if (!vsi->rss_lut_user) {
5016                 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
5017                 if (!vsi->rss_lut_user)
5018                         return -ENOMEM;
5019         }
5020
5021         /* Each 32 bits pointed by 'indir' is stored with a lut entry */
5022         if (indir)
5023                 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
5024                         vsi->rss_lut_user[i] = (u8)(indir[i]);
5025         else
5026                 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE,
5027                                   vsi->rss_size);
5028
5029         return i40e_config_rss(vsi, seed, vsi->rss_lut_user,
5030                                I40E_HLUT_ARRAY_SIZE);
5031 }
5032
5033 /**
5034  * i40e_get_priv_flags - report device private flags
5035  * @dev: network interface device structure
5036  *
5037  * The get string set count and the string set should be matched for each
5038  * flag returned.  Add new strings for each flag to the i40e_gstrings_priv_flags
5039  * array.
5040  *
5041  * Returns a u32 bitmap of flags.
5042  **/
5043 static u32 i40e_get_priv_flags(struct net_device *dev)
5044 {
5045         struct i40e_netdev_priv *np = netdev_priv(dev);
5046         struct i40e_vsi *vsi = np->vsi;
5047         struct i40e_pf *pf = vsi->back;
5048         u32 i, j, ret_flags = 0;
5049
5050         for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
5051                 const struct i40e_priv_flags *priv_flags;
5052
5053                 priv_flags = &i40e_gstrings_priv_flags[i];
5054
5055                 if (priv_flags->flag & pf->flags)
5056                         ret_flags |= BIT(i);
5057         }
5058
5059         if (pf->hw.pf_id != 0)
5060                 return ret_flags;
5061
5062         for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) {
5063                 const struct i40e_priv_flags *priv_flags;
5064
5065                 priv_flags = &i40e_gl_gstrings_priv_flags[j];
5066
5067                 if (priv_flags->flag & pf->flags)
5068                         ret_flags |= BIT(i + j);
5069         }
5070
5071         return ret_flags;
5072 }
5073
5074 /**
5075  * i40e_set_priv_flags - set private flags
5076  * @dev: network interface device structure
5077  * @flags: bit flags to be set
5078  **/
5079 static int i40e_set_priv_flags(struct net_device *dev, u32 flags)
5080 {
5081         struct i40e_netdev_priv *np = netdev_priv(dev);
5082         u64 orig_flags, new_flags, changed_flags;
5083         enum i40e_admin_queue_err adq_err;
5084         struct i40e_vsi *vsi = np->vsi;
5085         struct i40e_pf *pf = vsi->back;
5086         u32 reset_needed = 0;
5087         i40e_status status;
5088         u32 i, j;
5089
5090         orig_flags = READ_ONCE(pf->flags);
5091         new_flags = orig_flags;
5092
5093         for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
5094                 const struct i40e_priv_flags *priv_flags;
5095
5096                 priv_flags = &i40e_gstrings_priv_flags[i];
5097
5098                 if (flags & BIT(i))
5099                         new_flags |= priv_flags->flag;
5100                 else
5101                         new_flags &= ~(priv_flags->flag);
5102
5103                 /* If this is a read-only flag, it can't be changed */
5104                 if (priv_flags->read_only &&
5105                     ((orig_flags ^ new_flags) & ~BIT(i)))
5106                         return -EOPNOTSUPP;
5107         }
5108
5109         if (pf->hw.pf_id != 0)
5110                 goto flags_complete;
5111
5112         for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) {
5113                 const struct i40e_priv_flags *priv_flags;
5114
5115                 priv_flags = &i40e_gl_gstrings_priv_flags[j];
5116
5117                 if (flags & BIT(i + j))
5118                         new_flags |= priv_flags->flag;
5119                 else
5120                         new_flags &= ~(priv_flags->flag);
5121
5122                 /* If this is a read-only flag, it can't be changed */
5123                 if (priv_flags->read_only &&
5124                     ((orig_flags ^ new_flags) & ~BIT(i)))
5125                         return -EOPNOTSUPP;
5126         }
5127
5128 flags_complete:
5129         changed_flags = orig_flags ^ new_flags;
5130
5131         if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP)
5132                 reset_needed = I40E_PF_RESET_AND_REBUILD_FLAG;
5133         if (changed_flags & (I40E_FLAG_VEB_STATS_ENABLED |
5134             I40E_FLAG_LEGACY_RX | I40E_FLAG_SOURCE_PRUNING_DISABLED))
5135                 reset_needed = BIT(__I40E_PF_RESET_REQUESTED);
5136
5137         /* Before we finalize any flag changes, we need to perform some
5138          * checks to ensure that the changes are supported and safe.
5139          */
5140
5141         /* ATR eviction is not supported on all devices */
5142         if ((new_flags & I40E_FLAG_HW_ATR_EVICT_ENABLED) &&
5143             !(pf->hw_features & I40E_HW_ATR_EVICT_CAPABLE))
5144                 return -EOPNOTSUPP;
5145
5146         /* If the driver detected FW LLDP was disabled on init, this flag could
5147          * be set, however we do not support _changing_ the flag:
5148          * - on XL710 if NPAR is enabled or FW API version < 1.7
5149          * - on X722 with FW API version < 1.6
5150          * There are situations where older FW versions/NPAR enabled PFs could
5151          * disable LLDP, however we _must_ not allow the user to enable/disable
5152          * LLDP with this flag on unsupported FW versions.
5153          */
5154         if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) {
5155                 if (!(pf->hw.flags & I40E_HW_FLAG_FW_LLDP_STOPPABLE)) {
5156                         dev_warn(&pf->pdev->dev,
5157                                  "Device does not support changing FW LLDP\n");
5158                         return -EOPNOTSUPP;
5159                 }
5160         }
5161
5162         if (changed_flags & I40E_FLAG_RS_FEC &&
5163             pf->hw.device_id != I40E_DEV_ID_25G_SFP28 &&
5164             pf->hw.device_id != I40E_DEV_ID_25G_B) {
5165                 dev_warn(&pf->pdev->dev,
5166                          "Device does not support changing FEC configuration\n");
5167                 return -EOPNOTSUPP;
5168         }
5169
5170         if (changed_flags & I40E_FLAG_BASE_R_FEC &&
5171             pf->hw.device_id != I40E_DEV_ID_25G_SFP28 &&
5172             pf->hw.device_id != I40E_DEV_ID_25G_B &&
5173             pf->hw.device_id != I40E_DEV_ID_KX_X722) {
5174                 dev_warn(&pf->pdev->dev,
5175                          "Device does not support changing FEC configuration\n");
5176                 return -EOPNOTSUPP;
5177         }
5178
5179         /* Process any additional changes needed as a result of flag changes.
5180          * The changed_flags value reflects the list of bits that were
5181          * changed in the code above.
5182          */
5183
5184         /* Flush current ATR settings if ATR was disabled */
5185         if ((changed_flags & I40E_FLAG_FD_ATR_ENABLED) &&
5186             !(new_flags & I40E_FLAG_FD_ATR_ENABLED)) {
5187                 set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state);
5188                 set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state);
5189         }
5190
5191         if (changed_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT) {
5192                 u16 sw_flags = 0, valid_flags = 0;
5193                 int ret;
5194
5195                 if (!(new_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT))
5196                         sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
5197                 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
5198                 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags,
5199                                                 0, NULL);
5200                 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) {
5201                         dev_info(&pf->pdev->dev,
5202                                  "couldn't set switch config bits, err %s aq_err %s\n",
5203                                  i40e_stat_str(&pf->hw, ret),
5204                                  i40e_aq_str(&pf->hw,
5205                                              pf->hw.aq.asq_last_status));
5206                         /* not a fatal problem, just keep going */
5207                 }
5208         }
5209
5210         if ((changed_flags & I40E_FLAG_RS_FEC) ||
5211             (changed_flags & I40E_FLAG_BASE_R_FEC)) {
5212                 u8 fec_cfg = 0;
5213
5214                 if (new_flags & I40E_FLAG_RS_FEC &&
5215                     new_flags & I40E_FLAG_BASE_R_FEC) {
5216                         fec_cfg = I40E_AQ_SET_FEC_AUTO;
5217                 } else if (new_flags & I40E_FLAG_RS_FEC) {
5218                         fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS |
5219                                    I40E_AQ_SET_FEC_ABILITY_RS);
5220                 } else if (new_flags & I40E_FLAG_BASE_R_FEC) {
5221                         fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR |
5222                                    I40E_AQ_SET_FEC_ABILITY_KR);
5223                 }
5224                 if (i40e_set_fec_cfg(dev, fec_cfg))
5225                         dev_warn(&pf->pdev->dev, "Cannot change FEC config\n");
5226         }
5227
5228         if ((changed_flags & I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) &&
5229             (orig_flags & I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED)) {
5230                 dev_err(&pf->pdev->dev,
5231                         "Setting link-down-on-close not supported on this port (because total-port-shutdown is enabled)\n");
5232                 return -EOPNOTSUPP;
5233         }
5234
5235         if ((changed_flags & new_flags &
5236              I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) &&
5237             (new_flags & I40E_FLAG_MFP_ENABLED))
5238                 dev_warn(&pf->pdev->dev,
5239                          "Turning on link-down-on-close flag may affect other partitions\n");
5240
5241         if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) {
5242                 if (new_flags & I40E_FLAG_DISABLE_FW_LLDP) {
5243 #ifdef CONFIG_I40E_DCB
5244                         i40e_dcb_sw_default_config(pf);
5245 #endif /* CONFIG_I40E_DCB */
5246                         i40e_aq_cfg_lldp_mib_change_event(&pf->hw, false, NULL);
5247                         i40e_aq_stop_lldp(&pf->hw, true, false, NULL);
5248                 } else {
5249                         i40e_set_lldp_forwarding(pf, false);
5250                         status = i40e_aq_start_lldp(&pf->hw, false, NULL);
5251                         if (status) {
5252                                 adq_err = pf->hw.aq.asq_last_status;
5253                                 switch (adq_err) {
5254                                 case I40E_AQ_RC_EEXIST:
5255                                         dev_warn(&pf->pdev->dev,
5256                                                  "FW LLDP agent is already running\n");
5257                                         reset_needed = 0;
5258                                         break;
5259                                 case I40E_AQ_RC_EPERM:
5260                                         dev_warn(&pf->pdev->dev,
5261                                                  "Device configuration forbids SW from starting the LLDP agent.\n");
5262                                         return -EINVAL;
5263                                 default:
5264                                         dev_warn(&pf->pdev->dev,
5265                                                  "Starting FW LLDP agent failed: error: %s, %s\n",
5266                                                  i40e_stat_str(&pf->hw,
5267                                                                status),
5268                                                  i40e_aq_str(&pf->hw,
5269                                                              adq_err));
5270                                         return -EINVAL;
5271                                 }
5272                         }
5273                 }
5274         }
5275
5276         /* Now that we've checked to ensure that the new flags are valid, load
5277          * them into place. Since we only modify flags either (a) during
5278          * initialization or (b) while holding the RTNL lock, we don't need
5279          * anything fancy here.
5280          */
5281         pf->flags = new_flags;
5282
5283         /* Issue reset to cause things to take effect, as additional bits
5284          * are added we will need to create a mask of bits requiring reset
5285          */
5286         if (reset_needed)
5287                 i40e_do_reset(pf, reset_needed, true);
5288
5289         return 0;
5290 }
5291
5292 /**
5293  * i40e_get_module_info - get (Q)SFP+ module type info
5294  * @netdev: network interface device structure
5295  * @modinfo: module EEPROM size and layout information structure
5296  **/
5297 static int i40e_get_module_info(struct net_device *netdev,
5298                                 struct ethtool_modinfo *modinfo)
5299 {
5300         struct i40e_netdev_priv *np = netdev_priv(netdev);
5301         struct i40e_vsi *vsi = np->vsi;
5302         struct i40e_pf *pf = vsi->back;
5303         struct i40e_hw *hw = &pf->hw;
5304         u32 sff8472_comp = 0;
5305         u32 sff8472_swap = 0;
5306         u32 sff8636_rev = 0;
5307         i40e_status status;
5308         u32 type = 0;
5309
5310         /* Check if firmware supports reading module EEPROM. */
5311         if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) {
5312                 netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n");
5313                 return -EINVAL;
5314         }
5315
5316         status = i40e_update_link_info(hw);
5317         if (status)
5318                 return -EIO;
5319
5320         if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) {
5321                 netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n");
5322                 return -EINVAL;
5323         }
5324
5325         type = hw->phy.link_info.module_type[0];
5326
5327         switch (type) {
5328         case I40E_MODULE_TYPE_SFP:
5329                 status = i40e_aq_get_phy_register(hw,
5330                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5331                                 I40E_I2C_EEPROM_DEV_ADDR, true,
5332                                 I40E_MODULE_SFF_8472_COMP,
5333                                 &sff8472_comp, NULL);
5334                 if (status)
5335                         return -EIO;
5336
5337                 status = i40e_aq_get_phy_register(hw,
5338                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5339                                 I40E_I2C_EEPROM_DEV_ADDR, true,
5340                                 I40E_MODULE_SFF_8472_SWAP,
5341                                 &sff8472_swap, NULL);
5342                 if (status)
5343                         return -EIO;
5344
5345                 /* Check if the module requires address swap to access
5346                  * the other EEPROM memory page.
5347                  */
5348                 if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) {
5349                         netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n");
5350                         modinfo->type = ETH_MODULE_SFF_8079;
5351                         modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5352                 } else if (sff8472_comp == 0x00) {
5353                         /* Module is not SFF-8472 compliant */
5354                         modinfo->type = ETH_MODULE_SFF_8079;
5355                         modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5356                 } else if (!(sff8472_swap & I40E_MODULE_SFF_DDM_IMPLEMENTED)) {
5357                         /* Module is SFF-8472 compliant but doesn't implement
5358                          * Digital Diagnostic Monitoring (DDM).
5359                          */
5360                         modinfo->type = ETH_MODULE_SFF_8079;
5361                         modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5362                 } else {
5363                         modinfo->type = ETH_MODULE_SFF_8472;
5364                         modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
5365                 }
5366                 break;
5367         case I40E_MODULE_TYPE_QSFP_PLUS:
5368                 /* Read from memory page 0. */
5369                 status = i40e_aq_get_phy_register(hw,
5370                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5371                                 0, true,
5372                                 I40E_MODULE_REVISION_ADDR,
5373                                 &sff8636_rev, NULL);
5374                 if (status)
5375                         return -EIO;
5376                 /* Determine revision compliance byte */
5377                 if (sff8636_rev > 0x02) {
5378                         /* Module is SFF-8636 compliant */
5379                         modinfo->type = ETH_MODULE_SFF_8636;
5380                         modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5381                 } else {
5382                         modinfo->type = ETH_MODULE_SFF_8436;
5383                         modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5384                 }
5385                 break;
5386         case I40E_MODULE_TYPE_QSFP28:
5387                 modinfo->type = ETH_MODULE_SFF_8636;
5388                 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5389                 break;
5390         default:
5391                 netdev_err(vsi->netdev, "Module type unrecognized\n");
5392                 return -EINVAL;
5393         }
5394         return 0;
5395 }
5396
5397 /**
5398  * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents
5399  * @netdev: network interface device structure
5400  * @ee: EEPROM dump request structure
5401  * @data: buffer to be filled with EEPROM contents
5402  **/
5403 static int i40e_get_module_eeprom(struct net_device *netdev,
5404                                   struct ethtool_eeprom *ee,
5405                                   u8 *data)
5406 {
5407         struct i40e_netdev_priv *np = netdev_priv(netdev);
5408         struct i40e_vsi *vsi = np->vsi;
5409         struct i40e_pf *pf = vsi->back;
5410         struct i40e_hw *hw = &pf->hw;
5411         bool is_sfp = false;
5412         i40e_status status;
5413         u32 value = 0;
5414         int i;
5415
5416         if (!ee || !ee->len || !data)
5417                 return -EINVAL;
5418
5419         if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP)
5420                 is_sfp = true;
5421
5422         for (i = 0; i < ee->len; i++) {
5423                 u32 offset = i + ee->offset;
5424                 u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0;
5425
5426                 /* Check if we need to access the other memory page */
5427                 if (is_sfp) {
5428                         if (offset >= ETH_MODULE_SFF_8079_LEN) {
5429                                 offset -= ETH_MODULE_SFF_8079_LEN;
5430                                 addr = I40E_I2C_EEPROM_DEV_ADDR2;
5431                         }
5432                 } else {
5433                         while (offset >= ETH_MODULE_SFF_8436_LEN) {
5434                                 /* Compute memory page number and offset. */
5435                                 offset -= ETH_MODULE_SFF_8436_LEN / 2;
5436                                 addr++;
5437                         }
5438                 }
5439
5440                 status = i40e_aq_get_phy_register(hw,
5441                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5442                                 true, addr, offset, &value, NULL);
5443                 if (status)
5444                         return -EIO;
5445                 data[i] = value;
5446         }
5447         return 0;
5448 }
5449
5450 static int i40e_get_eee(struct net_device *netdev, struct ethtool_eee *edata)
5451 {
5452         struct i40e_netdev_priv *np = netdev_priv(netdev);
5453         struct i40e_aq_get_phy_abilities_resp phy_cfg;
5454         enum i40e_status_code status = 0;
5455         struct i40e_vsi *vsi = np->vsi;
5456         struct i40e_pf *pf = vsi->back;
5457         struct i40e_hw *hw = &pf->hw;
5458
5459         /* Get initial PHY capabilities */
5460         status = i40e_aq_get_phy_capabilities(hw, false, true, &phy_cfg, NULL);
5461         if (status)
5462                 return -EAGAIN;
5463
5464         /* Check whether NIC configuration is compatible with Energy Efficient
5465          * Ethernet (EEE) mode.
5466          */
5467         if (phy_cfg.eee_capability == 0)
5468                 return -EOPNOTSUPP;
5469
5470         edata->supported = SUPPORTED_Autoneg;
5471         edata->lp_advertised = edata->supported;
5472
5473         /* Get current configuration */
5474         status = i40e_aq_get_phy_capabilities(hw, false, false, &phy_cfg, NULL);
5475         if (status)
5476                 return -EAGAIN;
5477
5478         edata->advertised = phy_cfg.eee_capability ? SUPPORTED_Autoneg : 0U;
5479         edata->eee_enabled = !!edata->advertised;
5480         edata->tx_lpi_enabled = pf->stats.tx_lpi_status;
5481
5482         edata->eee_active = pf->stats.tx_lpi_status && pf->stats.rx_lpi_status;
5483
5484         return 0;
5485 }
5486
5487 static int i40e_is_eee_param_supported(struct net_device *netdev,
5488                                        struct ethtool_eee *edata)
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_ethtool_not_used {
5494                 u32 value;
5495                 const char *name;
5496         } param[] = {
5497                 {edata->advertised & ~SUPPORTED_Autoneg, "advertise"},
5498                 {edata->tx_lpi_timer, "tx-timer"},
5499                 {edata->tx_lpi_enabled != pf->stats.tx_lpi_status, "tx-lpi"}
5500         };
5501         int i;
5502
5503         for (i = 0; i < ARRAY_SIZE(param); i++) {
5504                 if (param[i].value) {
5505                         netdev_info(netdev,
5506                                     "EEE setting %s not supported\n",
5507                                     param[i].name);
5508                         return -EOPNOTSUPP;
5509                 }
5510         }
5511
5512         return 0;
5513 }
5514
5515 static int i40e_set_eee(struct net_device *netdev, struct ethtool_eee *edata)
5516 {
5517         struct i40e_netdev_priv *np = netdev_priv(netdev);
5518         struct i40e_aq_get_phy_abilities_resp abilities;
5519         enum i40e_status_code status = I40E_SUCCESS;
5520         struct i40e_aq_set_phy_config config;
5521         struct i40e_vsi *vsi = np->vsi;
5522         struct i40e_pf *pf = vsi->back;
5523         struct i40e_hw *hw = &pf->hw;
5524         __le16 eee_capability;
5525
5526         /* Deny parameters we don't support */
5527         if (i40e_is_eee_param_supported(netdev, edata))
5528                 return -EOPNOTSUPP;
5529
5530         /* Get initial PHY capabilities */
5531         status = i40e_aq_get_phy_capabilities(hw, false, true, &abilities,
5532                                               NULL);
5533         if (status)
5534                 return -EAGAIN;
5535
5536         /* Check whether NIC configuration is compatible with Energy Efficient
5537          * Ethernet (EEE) mode.
5538          */
5539         if (abilities.eee_capability == 0)
5540                 return -EOPNOTSUPP;
5541
5542         /* Cache initial EEE capability */
5543         eee_capability = abilities.eee_capability;
5544
5545         /* Get current PHY configuration */
5546         status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
5547                                               NULL);
5548         if (status)
5549                 return -EAGAIN;
5550
5551         /* Cache current PHY configuration */
5552         config.phy_type = abilities.phy_type;
5553         config.phy_type_ext = abilities.phy_type_ext;
5554         config.link_speed = abilities.link_speed;
5555         config.abilities = abilities.abilities |
5556                            I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
5557         config.eeer = abilities.eeer_val;
5558         config.low_power_ctrl = abilities.d3_lpan;
5559         config.fec_config = abilities.fec_cfg_curr_mod_ext_info &
5560                             I40E_AQ_PHY_FEC_CONFIG_MASK;
5561
5562         /* Set desired EEE state */
5563         if (edata->eee_enabled) {
5564                 config.eee_capability = eee_capability;
5565                 config.eeer |= cpu_to_le32(I40E_PRTPM_EEER_TX_LPI_EN_MASK);
5566         } else {
5567                 config.eee_capability = 0;
5568                 config.eeer &= cpu_to_le32(~I40E_PRTPM_EEER_TX_LPI_EN_MASK);
5569         }
5570
5571         /* Apply modified PHY configuration */
5572         status = i40e_aq_set_phy_config(hw, &config, NULL);
5573         if (status)
5574                 return -EAGAIN;
5575
5576         return 0;
5577 }
5578
5579 static const struct ethtool_ops i40e_ethtool_recovery_mode_ops = {
5580         .get_drvinfo            = i40e_get_drvinfo,
5581         .set_eeprom             = i40e_set_eeprom,
5582         .get_eeprom_len         = i40e_get_eeprom_len,
5583         .get_eeprom             = i40e_get_eeprom,
5584 };
5585
5586 static const struct ethtool_ops i40e_ethtool_ops = {
5587         .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
5588                                      ETHTOOL_COALESCE_MAX_FRAMES_IRQ |
5589                                      ETHTOOL_COALESCE_USE_ADAPTIVE |
5590                                      ETHTOOL_COALESCE_RX_USECS_HIGH |
5591                                      ETHTOOL_COALESCE_TX_USECS_HIGH,
5592         .get_drvinfo            = i40e_get_drvinfo,
5593         .get_regs_len           = i40e_get_regs_len,
5594         .get_regs               = i40e_get_regs,
5595         .nway_reset             = i40e_nway_reset,
5596         .get_link               = ethtool_op_get_link,
5597         .get_wol                = i40e_get_wol,
5598         .set_wol                = i40e_set_wol,
5599         .set_eeprom             = i40e_set_eeprom,
5600         .get_eeprom_len         = i40e_get_eeprom_len,
5601         .get_eeprom             = i40e_get_eeprom,
5602         .get_ringparam          = i40e_get_ringparam,
5603         .set_ringparam          = i40e_set_ringparam,
5604         .get_pauseparam         = i40e_get_pauseparam,
5605         .set_pauseparam         = i40e_set_pauseparam,
5606         .get_msglevel           = i40e_get_msglevel,
5607         .set_msglevel           = i40e_set_msglevel,
5608         .get_rxnfc              = i40e_get_rxnfc,
5609         .set_rxnfc              = i40e_set_rxnfc,
5610         .self_test              = i40e_diag_test,
5611         .get_strings            = i40e_get_strings,
5612         .get_eee                = i40e_get_eee,
5613         .set_eee                = i40e_set_eee,
5614         .set_phys_id            = i40e_set_phys_id,
5615         .get_sset_count         = i40e_get_sset_count,
5616         .get_ethtool_stats      = i40e_get_ethtool_stats,
5617         .get_coalesce           = i40e_get_coalesce,
5618         .set_coalesce           = i40e_set_coalesce,
5619         .get_rxfh_key_size      = i40e_get_rxfh_key_size,
5620         .get_rxfh_indir_size    = i40e_get_rxfh_indir_size,
5621         .get_rxfh               = i40e_get_rxfh,
5622         .set_rxfh               = i40e_set_rxfh,
5623         .get_channels           = i40e_get_channels,
5624         .set_channels           = i40e_set_channels,
5625         .get_module_info        = i40e_get_module_info,
5626         .get_module_eeprom      = i40e_get_module_eeprom,
5627         .get_ts_info            = i40e_get_ts_info,
5628         .get_priv_flags         = i40e_get_priv_flags,
5629         .set_priv_flags         = i40e_set_priv_flags,
5630         .get_per_queue_coalesce = i40e_get_per_queue_coalesce,
5631         .set_per_queue_coalesce = i40e_set_per_queue_coalesce,
5632         .get_link_ksettings     = i40e_get_link_ksettings,
5633         .set_link_ksettings     = i40e_set_link_ksettings,
5634         .get_fecparam = i40e_get_fec_param,
5635         .set_fecparam = i40e_set_fec_param,
5636         .flash_device = i40e_ddp_flash,
5637 };
5638
5639 void i40e_set_ethtool_ops(struct net_device *netdev)
5640 {
5641         struct i40e_netdev_priv *np = netdev_priv(netdev);
5642         struct i40e_pf          *pf = np->vsi->back;
5643
5644         if (!test_bit(__I40E_RECOVERY_MODE, pf->state))
5645                 netdev->ethtool_ops = &i40e_ethtool_ops;
5646         else
5647                 netdev->ethtool_ops = &i40e_ethtool_recovery_mode_ops;
5648 }