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

DEFINITIONS

1. i40e_add_one_ethtool_stat
2. __i40e_add_ethtool_stats
3. i40e_add_queue_stats
4. __i40e_add_stat_strings
5. i40e_partition_setting_complaint
6. i40e_phy_type_to_ethtool
7. i40e_get_settings_link_up_fec
8. i40e_get_settings_link_up
9. i40e_get_settings_link_down
10. i40e_get_link_ksettings
11. i40e_set_link_ksettings
12. i40e_set_fec_cfg
13. i40e_get_fec_param
14. i40e_set_fec_param
15. i40e_nway_reset
16. i40e_get_pauseparam
17. i40e_set_pauseparam
18. i40e_get_msglevel
19. i40e_set_msglevel
20. i40e_get_regs_len
21. i40e_get_regs
22. i40e_get_eeprom
23. i40e_get_eeprom_len
24. i40e_set_eeprom
25. i40e_get_drvinfo
26. i40e_get_ringparam
27. i40e_active_tx_ring_index
28. i40e_set_ringparam
29. i40e_get_stats_count
30. i40e_get_sset_count
31. i40e_get_pfc_stats
32. i40e_get_ethtool_stats
33. i40e_get_stat_strings
34. i40e_get_priv_flag_strings
35. i40e_get_strings
36. i40e_get_ts_info
37. i40e_link_test
38. i40e_reg_test
39. i40e_eeprom_test
40. i40e_intr_test
41. i40e_active_vfs
42. i40e_active_vmdqs
43. i40e_diag_test
44. i40e_get_wol
45. i40e_set_wol
46. i40e_set_phys_id
47. __i40e_get_coalesce
48. i40e_get_coalesce
49. i40e_get_per_queue_coalesce
50. i40e_set_itr_per_queue
51. __i40e_set_coalesce
52. i40e_set_coalesce
53. i40e_set_per_queue_coalesce
54. i40e_get_rss_hash_opts
55. i40e_check_mask
56. i40e_parse_rx_flow_user_data
57. i40e_fill_rx_flow_user_data
58. i40e_get_ethtool_fdir_all
59. i40e_get_ethtool_fdir_entry
60. i40e_get_rxnfc
61. i40e_get_rss_hash_bits
62. i40e_set_rss_hash_opt
63. i40e_update_ethtool_fdir_entry
64. i40e_prune_flex_pit_list
65. i40e_del_fdir_entry
66. i40e_unused_pit_index
67. i40e_find_flex_offset
68. i40e_add_flex_offset
69. __i40e_reprogram_flex_pit
70. i40e_reprogram_flex_pit
71. i40e_flow_str
72. i40e_pit_index_to_mask
73. i40e_print_input_set
74. i40e_check_fdir_input_set
75. i40e_match_fdir_filter
76. i40e_disallow_matching_filters
77. i40e_add_fdir_ethtool
78. i40e_set_rxnfc
79. i40e_max_channels
80. i40e_get_channels
81. i40e_set_channels
82. i40e_get_rxfh_key_size
83. i40e_get_rxfh_indir_size
84. i40e_get_rxfh
85. i40e_set_rxfh
86. i40e_get_priv_flags
87. i40e_set_priv_flags
88. i40e_get_module_info
89. i40e_get_module_eeprom
90. i40e_get_eee
91. i40e_set_eee
92. i40e_set_ethtool_ops

   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 = FIELD_SIZEOF(_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("LinkPolling", I40E_FLAG_LINK_POLLING_ENABLED, 0),
 432         I40E_PRIV_FLAG("flow-director-atr", I40E_FLAG_FD_ATR_ENABLED, 0),
 433         I40E_PRIV_FLAG("veb-stats", I40E_FLAG_VEB_STATS_ENABLED, 0),
 434         I40E_PRIV_FLAG("hw-atr-eviction", I40E_FLAG_HW_ATR_EVICT_ENABLED, 0),
 435         I40E_PRIV_FLAG("link-down-on-close",
 436                        I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED, 0),
 437         I40E_PRIV_FLAG("legacy-rx", I40E_FLAG_LEGACY_RX, 0),
 438         I40E_PRIV_FLAG("disable-source-pruning",
 439                        I40E_FLAG_SOURCE_PRUNING_DISABLED, 0),
 440         I40E_PRIV_FLAG("disable-fw-lldp", I40E_FLAG_DISABLE_FW_LLDP, 0),
 441         I40E_PRIV_FLAG("rs-fec", I40E_FLAG_RS_FEC, 0),
 442         I40E_PRIV_FLAG("base-r-fec", I40E_FLAG_BASE_R_FEC, 0),
 443 };
 444 
 445 #define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gstrings_priv_flags)
 446 
 447 /* Private flags with a global effect, restricted to PF 0 */
 448 static const struct i40e_priv_flags i40e_gl_gstrings_priv_flags[] = {
 449         I40E_PRIV_FLAG("vf-true-promisc-support",
 450                        I40E_FLAG_TRUE_PROMISC_SUPPORT, 0),
 451 };
 452 
 453 #define I40E_GL_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gl_gstrings_priv_flags)
 454 
 455 /**
 456  * i40e_partition_setting_complaint - generic complaint for MFP restriction
 457  * @pf: the PF struct
 458  **/
 459 static void i40e_partition_setting_complaint(struct i40e_pf *pf)
 460 {
 461         dev_info(&pf->pdev->dev,
 462                  "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");
 463 }
 464 
 465 /**
 466  * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes
 467  * @pf: PF struct with phy_types
 468  * @ks: ethtool link ksettings struct to fill out
 469  *
 470  **/
 471 static void i40e_phy_type_to_ethtool(struct i40e_pf *pf,
 472                                      struct ethtool_link_ksettings *ks)
 473 {
 474         struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info;
 475         u64 phy_types = pf->hw.phy.phy_types;
 476 
 477         ethtool_link_ksettings_zero_link_mode(ks, supported);
 478         ethtool_link_ksettings_zero_link_mode(ks, advertising);
 479 
 480         if (phy_types & I40E_CAP_PHY_TYPE_SGMII) {
 481                 ethtool_link_ksettings_add_link_mode(ks, supported,
 482                                                      1000baseT_Full);
 483                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 484                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 485                                                              1000baseT_Full);
 486                 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) {
 487                         ethtool_link_ksettings_add_link_mode(ks, supported,
 488                                                              100baseT_Full);
 489                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 490                                                              100baseT_Full);
 491                 }
 492         }
 493         if (phy_types & I40E_CAP_PHY_TYPE_XAUI ||
 494             phy_types & I40E_CAP_PHY_TYPE_XFI ||
 495             phy_types & I40E_CAP_PHY_TYPE_SFI ||
 496             phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU ||
 497             phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC) {
 498                 ethtool_link_ksettings_add_link_mode(ks, supported,
 499                                                      10000baseT_Full);
 500                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 501                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 502                                                              10000baseT_Full);
 503         }
 504         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_T) {
 505                 ethtool_link_ksettings_add_link_mode(ks, supported,
 506                                                      10000baseT_Full);
 507                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 508                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 509                                                              10000baseT_Full);
 510         }
 511         if (phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T) {
 512                 ethtool_link_ksettings_add_link_mode(ks, supported,
 513                                                      2500baseT_Full);
 514                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB)
 515                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 516                                                              2500baseT_Full);
 517         }
 518         if (phy_types & I40E_CAP_PHY_TYPE_5GBASE_T) {
 519                 ethtool_link_ksettings_add_link_mode(ks, supported,
 520                                                      5000baseT_Full);
 521                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB)
 522                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 523                                                              5000baseT_Full);
 524         }
 525         if (phy_types & I40E_CAP_PHY_TYPE_XLAUI ||
 526             phy_types & I40E_CAP_PHY_TYPE_XLPPI ||
 527             phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC)
 528                 ethtool_link_ksettings_add_link_mode(ks, supported,
 529                                                      40000baseCR4_Full);
 530         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
 531             phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) {
 532                 ethtool_link_ksettings_add_link_mode(ks, supported,
 533                                                      40000baseCR4_Full);
 534                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB)
 535                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 536                                                              40000baseCR4_Full);
 537         }
 538         if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) {
 539                 ethtool_link_ksettings_add_link_mode(ks, supported,
 540                                                      100baseT_Full);
 541                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
 542                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 543                                                              100baseT_Full);
 544         }
 545         if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T) {
 546                 ethtool_link_ksettings_add_link_mode(ks, supported,
 547                                                      1000baseT_Full);
 548                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 549                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 550                                                              1000baseT_Full);
 551         }
 552         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4) {
 553                 ethtool_link_ksettings_add_link_mode(ks, supported,
 554                                                      40000baseSR4_Full);
 555                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 556                                                      40000baseSR4_Full);
 557         }
 558         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4) {
 559                 ethtool_link_ksettings_add_link_mode(ks, supported,
 560                                                      40000baseLR4_Full);
 561                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 562                                                      40000baseLR4_Full);
 563         }
 564         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) {
 565                 ethtool_link_ksettings_add_link_mode(ks, supported,
 566                                                      40000baseKR4_Full);
 567                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 568                                                      40000baseKR4_Full);
 569         }
 570         if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) {
 571                 ethtool_link_ksettings_add_link_mode(ks, supported,
 572                                                      20000baseKR2_Full);
 573                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB)
 574                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 575                                                              20000baseKR2_Full);
 576         }
 577         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) {
 578                 ethtool_link_ksettings_add_link_mode(ks, supported,
 579                                                      10000baseKX4_Full);
 580                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 581                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 582                                                              10000baseKX4_Full);
 583         }
 584         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR &&
 585             !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) {
 586                 ethtool_link_ksettings_add_link_mode(ks, supported,
 587                                                      10000baseKR_Full);
 588                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 589                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 590                                                              10000baseKR_Full);
 591         }
 592         if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX &&
 593             !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) {
 594                 ethtool_link_ksettings_add_link_mode(ks, supported,
 595                                                      1000baseKX_Full);
 596                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 597                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 598                                                              1000baseKX_Full);
 599         }
 600         /* need to add 25G PHY types */
 601         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR) {
 602                 ethtool_link_ksettings_add_link_mode(ks, supported,
 603                                                      25000baseKR_Full);
 604                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 605                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 606                                                              25000baseKR_Full);
 607         }
 608         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR) {
 609                 ethtool_link_ksettings_add_link_mode(ks, supported,
 610                                                      25000baseCR_Full);
 611                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 612                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 613                                                              25000baseCR_Full);
 614         }
 615         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
 616             phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR) {
 617                 ethtool_link_ksettings_add_link_mode(ks, supported,
 618                                                      25000baseSR_Full);
 619                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 620                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 621                                                              25000baseSR_Full);
 622         }
 623         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC ||
 624             phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) {
 625                 ethtool_link_ksettings_add_link_mode(ks, supported,
 626                                                      25000baseCR_Full);
 627                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 628                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 629                                                              25000baseCR_Full);
 630         }
 631         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR ||
 632             phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR ||
 633             phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
 634             phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR ||
 635             phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC ||
 636             phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) {
 637                 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE);
 638                 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);
 639                 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);
 640                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) {
 641                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 642                                                              FEC_NONE);
 643                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 644                                                              FEC_RS);
 645                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 646                                                              FEC_BASER);
 647                 }
 648         }
 649         /* need to add new 10G PHY types */
 650         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
 651             phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU) {
 652                 ethtool_link_ksettings_add_link_mode(ks, supported,
 653                                                      10000baseCR_Full);
 654                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 655                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 656                                                              10000baseCR_Full);
 657         }
 658         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR) {
 659                 ethtool_link_ksettings_add_link_mode(ks, supported,
 660                                                      10000baseSR_Full);
 661                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 662                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 663                                                              10000baseSR_Full);
 664         }
 665         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) {
 666                 ethtool_link_ksettings_add_link_mode(ks, supported,
 667                                                      10000baseLR_Full);
 668                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 669                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 670                                                              10000baseLR_Full);
 671         }
 672         if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
 673             phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
 674             phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) {
 675                 ethtool_link_ksettings_add_link_mode(ks, supported,
 676                                                      1000baseX_Full);
 677                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 678                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 679                                                              1000baseX_Full);
 680         }
 681         /* Autoneg PHY types */
 682         if (phy_types & I40E_CAP_PHY_TYPE_SGMII ||
 683             phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4 ||
 684             phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
 685             phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4 ||
 686             phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
 687             phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR ||
 688             phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR ||
 689             phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR ||
 690             phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2 ||
 691             phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR ||
 692             phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR ||
 693             phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4 ||
 694             phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR ||
 695             phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU ||
 696             phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
 697             phy_types & I40E_CAP_PHY_TYPE_10GBASE_T ||
 698             phy_types & I40E_CAP_PHY_TYPE_5GBASE_T ||
 699             phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T ||
 700             phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL ||
 701             phy_types & I40E_CAP_PHY_TYPE_1000BASE_T ||
 702             phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
 703             phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
 704             phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX ||
 705             phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) {
 706                 ethtool_link_ksettings_add_link_mode(ks, supported,
 707                                                      Autoneg);
 708                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 709                                                      Autoneg);
 710         }
 711 }
 712 
 713 /**
 714  * i40e_get_settings_link_up_fec - Get the FEC mode encoding from mask
 715  * @req_fec_info: mask request FEC info
 716  * @ks: ethtool ksettings to fill in
 717  **/
 718 static void i40e_get_settings_link_up_fec(u8 req_fec_info,
 719                                           struct ethtool_link_ksettings *ks)
 720 {
 721         ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE);
 722         ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);
 723         ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);
 724 
 725         if ((I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) &&
 726             (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info)) {
 727                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 728                                                      FEC_NONE);
 729                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 730                                                      FEC_BASER);
 731                 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);
 732         } else if (I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) {
 733                 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);
 734         } else if (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info) {
 735                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 736                                                      FEC_BASER);
 737         } else {
 738                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 739                                                      FEC_NONE);
 740         }
 741 }
 742 
 743 /**
 744  * i40e_get_settings_link_up - Get the Link settings for when link is up
 745  * @hw: hw structure
 746  * @ks: ethtool ksettings to fill in
 747  * @netdev: network interface device structure
 748  * @pf: pointer to physical function struct
 749  **/
 750 static void i40e_get_settings_link_up(struct i40e_hw *hw,
 751                                       struct ethtool_link_ksettings *ks,
 752                                       struct net_device *netdev,
 753                                       struct i40e_pf *pf)
 754 {
 755         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 756         struct ethtool_link_ksettings cap_ksettings;
 757         u32 link_speed = hw_link_info->link_speed;
 758 
 759         /* Initialize supported and advertised settings based on phy settings */
 760         switch (hw_link_info->phy_type) {
 761         case I40E_PHY_TYPE_40GBASE_CR4:
 762         case I40E_PHY_TYPE_40GBASE_CR4_CU:
 763                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 764                 ethtool_link_ksettings_add_link_mode(ks, supported,
 765                                                      40000baseCR4_Full);
 766                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 767                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 768                                                      40000baseCR4_Full);
 769                 break;
 770         case I40E_PHY_TYPE_XLAUI:
 771         case I40E_PHY_TYPE_XLPPI:
 772         case I40E_PHY_TYPE_40GBASE_AOC:
 773                 ethtool_link_ksettings_add_link_mode(ks, supported,
 774                                                      40000baseCR4_Full);
 775                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 776                                                      40000baseCR4_Full);
 777                 break;
 778         case I40E_PHY_TYPE_40GBASE_SR4:
 779                 ethtool_link_ksettings_add_link_mode(ks, supported,
 780                                                      40000baseSR4_Full);
 781                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 782                                                      40000baseSR4_Full);
 783                 break;
 784         case I40E_PHY_TYPE_40GBASE_LR4:
 785                 ethtool_link_ksettings_add_link_mode(ks, supported,
 786                                                      40000baseLR4_Full);
 787                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 788                                                      40000baseLR4_Full);
 789                 break;
 790         case I40E_PHY_TYPE_25GBASE_SR:
 791         case I40E_PHY_TYPE_25GBASE_LR:
 792         case I40E_PHY_TYPE_10GBASE_SR:
 793         case I40E_PHY_TYPE_10GBASE_LR:
 794         case I40E_PHY_TYPE_1000BASE_SX:
 795         case I40E_PHY_TYPE_1000BASE_LX:
 796                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 797                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 798                 ethtool_link_ksettings_add_link_mode(ks, supported,
 799                                                      25000baseSR_Full);
 800                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 801                                                      25000baseSR_Full);
 802                 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
 803                 ethtool_link_ksettings_add_link_mode(ks, supported,
 804                                                      10000baseSR_Full);
 805                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 806                                                      10000baseSR_Full);
 807                 ethtool_link_ksettings_add_link_mode(ks, supported,
 808                                                      10000baseLR_Full);
 809                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 810                                                      10000baseLR_Full);
 811                 ethtool_link_ksettings_add_link_mode(ks, supported,
 812                                                      1000baseX_Full);
 813                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 814                                                      1000baseX_Full);
 815                 ethtool_link_ksettings_add_link_mode(ks, supported,
 816                                                      10000baseT_Full);
 817                 if (hw_link_info->module_type[2] &
 818                     I40E_MODULE_TYPE_1000BASE_SX ||
 819                     hw_link_info->module_type[2] &
 820                     I40E_MODULE_TYPE_1000BASE_LX) {
 821                         ethtool_link_ksettings_add_link_mode(ks, supported,
 822                                                              1000baseT_Full);
 823                         if (hw_link_info->requested_speeds &
 824                             I40E_LINK_SPEED_1GB)
 825                                 ethtool_link_ksettings_add_link_mode(
 826                                      ks, advertising, 1000baseT_Full);
 827                 }
 828                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 829                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 830                                                              10000baseT_Full);
 831                 break;
 832         case I40E_PHY_TYPE_10GBASE_T:
 833         case I40E_PHY_TYPE_5GBASE_T:
 834         case I40E_PHY_TYPE_2_5GBASE_T:
 835         case I40E_PHY_TYPE_1000BASE_T:
 836         case I40E_PHY_TYPE_100BASE_TX:
 837                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 838                 ethtool_link_ksettings_add_link_mode(ks, supported,
 839                                                      10000baseT_Full);
 840                 ethtool_link_ksettings_add_link_mode(ks, supported,
 841                                                      5000baseT_Full);
 842                 ethtool_link_ksettings_add_link_mode(ks, supported,
 843                                                      2500baseT_Full);
 844                 ethtool_link_ksettings_add_link_mode(ks, supported,
 845                                                      1000baseT_Full);
 846                 ethtool_link_ksettings_add_link_mode(ks, supported,
 847                                                      100baseT_Full);
 848                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 849                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 850                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 851                                                              10000baseT_Full);
 852                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB)
 853                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 854                                                              5000baseT_Full);
 855                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB)
 856                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 857                                                              2500baseT_Full);
 858                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 859                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 860                                                              1000baseT_Full);
 861                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
 862                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 863                                                              100baseT_Full);
 864                 break;
 865         case I40E_PHY_TYPE_1000BASE_T_OPTICAL:
 866                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 867                 ethtool_link_ksettings_add_link_mode(ks, supported,
 868                                                      1000baseT_Full);
 869                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 870                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 871                                                      1000baseT_Full);
 872                 break;
 873         case I40E_PHY_TYPE_10GBASE_CR1_CU:
 874         case I40E_PHY_TYPE_10GBASE_CR1:
 875                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 876                 ethtool_link_ksettings_add_link_mode(ks, supported,
 877                                                      10000baseT_Full);
 878                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 879                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 880                                                      10000baseT_Full);
 881                 break;
 882         case I40E_PHY_TYPE_XAUI:
 883         case I40E_PHY_TYPE_XFI:
 884         case I40E_PHY_TYPE_SFI:
 885         case I40E_PHY_TYPE_10GBASE_SFPP_CU:
 886         case I40E_PHY_TYPE_10GBASE_AOC:
 887                 ethtool_link_ksettings_add_link_mode(ks, supported,
 888                                                      10000baseT_Full);
 889                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 890                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 891                                                              10000baseT_Full);
 892                 break;
 893         case I40E_PHY_TYPE_SGMII:
 894                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 895                 ethtool_link_ksettings_add_link_mode(ks, supported,
 896                                                      1000baseT_Full);
 897                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 898                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 899                                                              1000baseT_Full);
 900                 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) {
 901                         ethtool_link_ksettings_add_link_mode(ks, supported,
 902                                                              100baseT_Full);
 903                         if (hw_link_info->requested_speeds &
 904                             I40E_LINK_SPEED_100MB)
 905                                 ethtool_link_ksettings_add_link_mode(
 906                                       ks, advertising, 100baseT_Full);
 907                 }
 908                 break;
 909         case I40E_PHY_TYPE_40GBASE_KR4:
 910         case I40E_PHY_TYPE_25GBASE_KR:
 911         case I40E_PHY_TYPE_20GBASE_KR2:
 912         case I40E_PHY_TYPE_10GBASE_KR:
 913         case I40E_PHY_TYPE_10GBASE_KX4:
 914         case I40E_PHY_TYPE_1000BASE_KX:
 915                 ethtool_link_ksettings_add_link_mode(ks, supported,
 916                                                      40000baseKR4_Full);
 917                 ethtool_link_ksettings_add_link_mode(ks, supported,
 918                                                      25000baseKR_Full);
 919                 ethtool_link_ksettings_add_link_mode(ks, supported,
 920                                                      20000baseKR2_Full);
 921                 ethtool_link_ksettings_add_link_mode(ks, supported,
 922                                                      10000baseKR_Full);
 923                 ethtool_link_ksettings_add_link_mode(ks, supported,
 924                                                      10000baseKX4_Full);
 925                 ethtool_link_ksettings_add_link_mode(ks, supported,
 926                                                      1000baseKX_Full);
 927                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 928                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 929                                                      40000baseKR4_Full);
 930                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 931                                                      25000baseKR_Full);
 932                 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
 933                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 934                                                      20000baseKR2_Full);
 935                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 936                                                      10000baseKR_Full);
 937                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 938                                                      10000baseKX4_Full);
 939                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 940                                                      1000baseKX_Full);
 941                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 942                 break;
 943         case I40E_PHY_TYPE_25GBASE_CR:
 944                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 945                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 946                 ethtool_link_ksettings_add_link_mode(ks, supported,
 947                                                      25000baseCR_Full);
 948                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 949                                                      25000baseCR_Full);
 950                 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
 951 
 952                 break;
 953         case I40E_PHY_TYPE_25GBASE_AOC:
 954         case I40E_PHY_TYPE_25GBASE_ACC:
 955                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 956                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 957                 ethtool_link_ksettings_add_link_mode(ks, supported,
 958                                                      25000baseCR_Full);
 959                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 960                                                      25000baseCR_Full);
 961                 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks);
 962 
 963                 ethtool_link_ksettings_add_link_mode(ks, supported,
 964                                                      10000baseCR_Full);
 965                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 966                                                      10000baseCR_Full);
 967                 break;
 968         default:
 969                 /* if we got here and link is up something bad is afoot */
 970                 netdev_info(netdev,
 971                             "WARNING: Link is up but PHY type 0x%x is not recognized.\n",
 972                             hw_link_info->phy_type);
 973         }
 974 
 975         /* Now that we've worked out everything that could be supported by the
 976          * current PHY type, get what is supported by the NVM and intersect
 977          * them to get what is truly supported
 978          */
 979         memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings));
 980         i40e_phy_type_to_ethtool(pf, &cap_ksettings);
 981         ethtool_intersect_link_masks(ks, &cap_ksettings);
 982 
 983         /* Set speed and duplex */
 984         switch (link_speed) {
 985         case I40E_LINK_SPEED_40GB:
 986                 ks->base.speed = SPEED_40000;
 987                 break;
 988         case I40E_LINK_SPEED_25GB:
 989                 ks->base.speed = SPEED_25000;
 990                 break;
 991         case I40E_LINK_SPEED_20GB:
 992                 ks->base.speed = SPEED_20000;
 993                 break;
 994         case I40E_LINK_SPEED_10GB:
 995                 ks->base.speed = SPEED_10000;
 996                 break;
 997         case I40E_LINK_SPEED_5GB:
 998                 ks->base.speed = SPEED_5000;
 999                 break;
1000         case I40E_LINK_SPEED_2_5GB:
1001                 ks->base.speed = SPEED_2500;
1002                 break;
1003         case I40E_LINK_SPEED_1GB:
1004                 ks->base.speed = SPEED_1000;
1005                 break;
1006         case I40E_LINK_SPEED_100MB:
1007                 ks->base.speed = SPEED_100;
1008                 break;
1009         default:
1010                 ks->base.speed = SPEED_UNKNOWN;
1011                 break;
1012         }
1013         ks->base.duplex = DUPLEX_FULL;
1014 }
1015 
1016 /**
1017  * i40e_get_settings_link_down - Get the Link settings for when link is down
1018  * @hw: hw structure
1019  * @ks: ethtool ksettings to fill in
1020  * @pf: pointer to physical function struct
1021  *
1022  * Reports link settings that can be determined when link is down
1023  **/
1024 static void i40e_get_settings_link_down(struct i40e_hw *hw,
1025                                         struct ethtool_link_ksettings *ks,
1026                                         struct i40e_pf *pf)
1027 {
1028         /* link is down and the driver needs to fall back on
1029          * supported phy types to figure out what info to display
1030          */
1031         i40e_phy_type_to_ethtool(pf, ks);
1032 
1033         /* With no link speed and duplex are unknown */
1034         ks->base.speed = SPEED_UNKNOWN;
1035         ks->base.duplex = DUPLEX_UNKNOWN;
1036 }
1037 
1038 /**
1039  * i40e_get_link_ksettings - Get Link Speed and Duplex settings
1040  * @netdev: network interface device structure
1041  * @ks: ethtool ksettings
1042  *
1043  * Reports speed/duplex settings based on media_type
1044  **/
1045 static int i40e_get_link_ksettings(struct net_device *netdev,
1046                                    struct ethtool_link_ksettings *ks)
1047 {
1048         struct i40e_netdev_priv *np = netdev_priv(netdev);
1049         struct i40e_pf *pf = np->vsi->back;
1050         struct i40e_hw *hw = &pf->hw;
1051         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1052         bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
1053 
1054         ethtool_link_ksettings_zero_link_mode(ks, supported);
1055         ethtool_link_ksettings_zero_link_mode(ks, advertising);
1056 
1057         if (link_up)
1058                 i40e_get_settings_link_up(hw, ks, netdev, pf);
1059         else
1060                 i40e_get_settings_link_down(hw, ks, pf);
1061 
1062         /* Now set the settings that don't rely on link being up/down */
1063         /* Set autoneg settings */
1064         ks->base.autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
1065                             AUTONEG_ENABLE : AUTONEG_DISABLE);
1066 
1067         /* Set media type settings */
1068         switch (hw->phy.media_type) {
1069         case I40E_MEDIA_TYPE_BACKPLANE:
1070                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1071                 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane);
1072                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1073                 ethtool_link_ksettings_add_link_mode(ks, advertising,
1074                                                      Backplane);
1075                 ks->base.port = PORT_NONE;
1076                 break;
1077         case I40E_MEDIA_TYPE_BASET:
1078                 ethtool_link_ksettings_add_link_mode(ks, supported, TP);
1079                 ethtool_link_ksettings_add_link_mode(ks, advertising, TP);
1080                 ks->base.port = PORT_TP;
1081                 break;
1082         case I40E_MEDIA_TYPE_DA:
1083         case I40E_MEDIA_TYPE_CX4:
1084                 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
1085                 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
1086                 ks->base.port = PORT_DA;
1087                 break;
1088         case I40E_MEDIA_TYPE_FIBER:
1089                 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
1090                 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
1091                 ks->base.port = PORT_FIBRE;
1092                 break;
1093         case I40E_MEDIA_TYPE_UNKNOWN:
1094         default:
1095                 ks->base.port = PORT_OTHER;
1096                 break;
1097         }
1098 
1099         /* Set flow control settings */
1100         ethtool_link_ksettings_add_link_mode(ks, supported, Pause);
1101 
1102         switch (hw->fc.requested_mode) {
1103         case I40E_FC_FULL:
1104                 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
1105                 break;
1106         case I40E_FC_TX_PAUSE:
1107                 ethtool_link_ksettings_add_link_mode(ks, advertising,
1108                                                      Asym_Pause);
1109                 break;
1110         case I40E_FC_RX_PAUSE:
1111                 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
1112                 ethtool_link_ksettings_add_link_mode(ks, advertising,
1113                                                      Asym_Pause);
1114                 break;
1115         default:
1116                 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause);
1117                 ethtool_link_ksettings_del_link_mode(ks, advertising,
1118                                                      Asym_Pause);
1119                 break;
1120         }
1121 
1122         return 0;
1123 }
1124 
1125 /**
1126  * i40e_set_link_ksettings - Set Speed and Duplex
1127  * @netdev: network interface device structure
1128  * @ks: ethtool ksettings
1129  *
1130  * Set speed/duplex per media_types advertised/forced
1131  **/
1132 static int i40e_set_link_ksettings(struct net_device *netdev,
1133                                    const struct ethtool_link_ksettings *ks)
1134 {
1135         struct i40e_netdev_priv *np = netdev_priv(netdev);
1136         struct i40e_aq_get_phy_abilities_resp abilities;
1137         struct ethtool_link_ksettings safe_ks;
1138         struct ethtool_link_ksettings copy_ks;
1139         struct i40e_aq_set_phy_config config;
1140         struct i40e_pf *pf = np->vsi->back;
1141         struct i40e_vsi *vsi = np->vsi;
1142         struct i40e_hw *hw = &pf->hw;
1143         bool autoneg_changed = false;
1144         i40e_status status = 0;
1145         int timeout = 50;
1146         int err = 0;
1147         u8 autoneg;
1148 
1149         /* Changing port settings is not supported if this isn't the
1150          * port's controlling PF
1151          */
1152         if (hw->partition_id != 1) {
1153                 i40e_partition_setting_complaint(pf);
1154                 return -EOPNOTSUPP;
1155         }
1156         if (vsi != pf->vsi[pf->lan_vsi])
1157                 return -EOPNOTSUPP;
1158         if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET &&
1159             hw->phy.media_type != I40E_MEDIA_TYPE_FIBER &&
1160             hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE &&
1161             hw->phy.media_type != I40E_MEDIA_TYPE_DA &&
1162             hw->phy.link_info.link_info & I40E_AQ_LINK_UP)
1163                 return -EOPNOTSUPP;
1164         if (hw->device_id == I40E_DEV_ID_KX_B ||
1165             hw->device_id == I40E_DEV_ID_KX_C ||
1166             hw->device_id == I40E_DEV_ID_20G_KR2 ||
1167             hw->device_id == I40E_DEV_ID_20G_KR2_A ||
1168             hw->device_id == I40E_DEV_ID_25G_B ||
1169             hw->device_id == I40E_DEV_ID_KX_X722) {
1170                 netdev_info(netdev, "Changing settings is not supported on backplane.\n");
1171                 return -EOPNOTSUPP;
1172         }
1173 
1174         /* copy the ksettings to copy_ks to avoid modifying the origin */
1175         memcpy(&copy_ks, ks, sizeof(struct ethtool_link_ksettings));
1176 
1177         /* save autoneg out of ksettings */
1178         autoneg = copy_ks.base.autoneg;
1179 
1180         /* get our own copy of the bits to check against */
1181         memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings));
1182         safe_ks.base.cmd = copy_ks.base.cmd;
1183         safe_ks.base.link_mode_masks_nwords =
1184                 copy_ks.base.link_mode_masks_nwords;
1185         i40e_get_link_ksettings(netdev, &safe_ks);
1186 
1187         /* Get link modes supported by hardware and check against modes
1188          * requested by the user.  Return an error if unsupported mode was set.
1189          */
1190         if (!bitmap_subset(copy_ks.link_modes.advertising,
1191                            safe_ks.link_modes.supported,
1192                            __ETHTOOL_LINK_MODE_MASK_NBITS))
1193                 return -EINVAL;
1194 
1195         /* set autoneg back to what it currently is */
1196         copy_ks.base.autoneg = safe_ks.base.autoneg;
1197 
1198         /* If copy_ks.base and safe_ks.base are not the same now, then they are
1199          * trying to set something that we do not support.
1200          */
1201         if (memcmp(&copy_ks.base, &safe_ks.base,
1202                    sizeof(struct ethtool_link_settings)))
1203                 return -EOPNOTSUPP;
1204 
1205         while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) {
1206                 timeout--;
1207                 if (!timeout)
1208                         return -EBUSY;
1209                 usleep_range(1000, 2000);
1210         }
1211 
1212         /* Get the current phy config */
1213         status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1214                                               NULL);
1215         if (status) {
1216                 err = -EAGAIN;
1217                 goto done;
1218         }
1219 
1220         /* Copy abilities to config in case autoneg is not
1221          * set below
1222          */
1223         memset(&config, 0, sizeof(struct i40e_aq_set_phy_config));
1224         config.abilities = abilities.abilities;
1225 
1226         /* Check autoneg */
1227         if (autoneg == AUTONEG_ENABLE) {
1228                 /* If autoneg was not already enabled */
1229                 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) {
1230                         /* If autoneg is not supported, return error */
1231                         if (!ethtool_link_ksettings_test_link_mode(&safe_ks,
1232                                                                    supported,
1233                                                                    Autoneg)) {
1234                                 netdev_info(netdev, "Autoneg not supported on this phy\n");
1235                                 err = -EINVAL;
1236                                 goto done;
1237                         }
1238                         /* Autoneg is allowed to change */
1239                         config.abilities = abilities.abilities |
1240                                            I40E_AQ_PHY_ENABLE_AN;
1241                         autoneg_changed = true;
1242                 }
1243         } else {
1244                 /* If autoneg is currently enabled */
1245                 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) {
1246                         /* If autoneg is supported 10GBASE_T is the only PHY
1247                          * that can disable it, so otherwise return error
1248                          */
1249                         if (ethtool_link_ksettings_test_link_mode(&safe_ks,
1250                                                                   supported,
1251                                                                   Autoneg) &&
1252                             hw->phy.link_info.phy_type !=
1253                             I40E_PHY_TYPE_10GBASE_T) {
1254                                 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
1255                                 err = -EINVAL;
1256                                 goto done;
1257                         }
1258                         /* Autoneg is allowed to change */
1259                         config.abilities = abilities.abilities &
1260                                            ~I40E_AQ_PHY_ENABLE_AN;
1261                         autoneg_changed = true;
1262                 }
1263         }
1264 
1265         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1266                                                   100baseT_Full))
1267                 config.link_speed |= I40E_LINK_SPEED_100MB;
1268         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1269                                                   1000baseT_Full) ||
1270             ethtool_link_ksettings_test_link_mode(ks, advertising,
1271                                                   1000baseX_Full) ||
1272             ethtool_link_ksettings_test_link_mode(ks, advertising,
1273                                                   1000baseKX_Full))
1274                 config.link_speed |= I40E_LINK_SPEED_1GB;
1275         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1276                                                   10000baseT_Full) ||
1277             ethtool_link_ksettings_test_link_mode(ks, advertising,
1278                                                   10000baseKX4_Full) ||
1279             ethtool_link_ksettings_test_link_mode(ks, advertising,
1280                                                   10000baseKR_Full) ||
1281             ethtool_link_ksettings_test_link_mode(ks, advertising,
1282                                                   10000baseCR_Full) ||
1283             ethtool_link_ksettings_test_link_mode(ks, advertising,
1284                                                   10000baseSR_Full) ||
1285             ethtool_link_ksettings_test_link_mode(ks, advertising,
1286                                                   10000baseLR_Full))
1287                 config.link_speed |= I40E_LINK_SPEED_10GB;
1288         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1289                                                   2500baseT_Full))
1290                 config.link_speed |= I40E_LINK_SPEED_2_5GB;
1291         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1292                                                   5000baseT_Full))
1293                 config.link_speed |= I40E_LINK_SPEED_5GB;
1294         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1295                                                   20000baseKR2_Full))
1296                 config.link_speed |= I40E_LINK_SPEED_20GB;
1297         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1298                                                   25000baseCR_Full) ||
1299             ethtool_link_ksettings_test_link_mode(ks, advertising,
1300                                                   25000baseKR_Full) ||
1301             ethtool_link_ksettings_test_link_mode(ks, advertising,
1302                                                   25000baseSR_Full))
1303                 config.link_speed |= I40E_LINK_SPEED_25GB;
1304         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1305                                                   40000baseKR4_Full) ||
1306             ethtool_link_ksettings_test_link_mode(ks, advertising,
1307                                                   40000baseCR4_Full) ||
1308             ethtool_link_ksettings_test_link_mode(ks, advertising,
1309                                                   40000baseSR4_Full) ||
1310             ethtool_link_ksettings_test_link_mode(ks, advertising,
1311                                                   40000baseLR4_Full))
1312                 config.link_speed |= I40E_LINK_SPEED_40GB;
1313 
1314         /* If speed didn't get set, set it to what it currently is.
1315          * This is needed because if advertise is 0 (as it is when autoneg
1316          * is disabled) then speed won't get set.
1317          */
1318         if (!config.link_speed)
1319                 config.link_speed = abilities.link_speed;
1320         if (autoneg_changed || abilities.link_speed != config.link_speed) {
1321                 /* copy over the rest of the abilities */
1322                 config.phy_type = abilities.phy_type;
1323                 config.phy_type_ext = abilities.phy_type_ext;
1324                 config.eee_capability = abilities.eee_capability;
1325                 config.eeer = abilities.eeer_val;
1326                 config.low_power_ctrl = abilities.d3_lpan;
1327                 config.fec_config = abilities.fec_cfg_curr_mod_ext_info &
1328                                     I40E_AQ_PHY_FEC_CONFIG_MASK;
1329 
1330                 /* save the requested speeds */
1331                 hw->phy.link_info.requested_speeds = config.link_speed;
1332                 /* set link and auto negotiation so changes take effect */
1333                 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
1334                 /* If link is up put link down */
1335                 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) {
1336                         /* Tell the OS link is going down, the link will go
1337                          * back up when fw says it is ready asynchronously
1338                          */
1339                         i40e_print_link_message(vsi, false);
1340                         netif_carrier_off(netdev);
1341                         netif_tx_stop_all_queues(netdev);
1342                 }
1343 
1344                 /* make the aq call */
1345                 status = i40e_aq_set_phy_config(hw, &config, NULL);
1346                 if (status) {
1347                         netdev_info(netdev,
1348                                     "Set phy config failed, err %s aq_err %s\n",
1349                                     i40e_stat_str(hw, status),
1350                                     i40e_aq_str(hw, hw->aq.asq_last_status));
1351                         err = -EAGAIN;
1352                         goto done;
1353                 }
1354 
1355                 status = i40e_update_link_info(hw);
1356                 if (status)
1357                         netdev_dbg(netdev,
1358                                    "Updating link info failed with err %s aq_err %s\n",
1359                                    i40e_stat_str(hw, status),
1360                                    i40e_aq_str(hw, hw->aq.asq_last_status));
1361 
1362         } else {
1363                 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
1364         }
1365 
1366 done:
1367         clear_bit(__I40E_CONFIG_BUSY, pf->state);
1368 
1369         return err;
1370 }
1371 
1372 static int i40e_set_fec_cfg(struct net_device *netdev, u8 fec_cfg)
1373 {
1374         struct i40e_netdev_priv *np = netdev_priv(netdev);
1375         struct i40e_aq_get_phy_abilities_resp abilities;
1376         struct i40e_pf *pf = np->vsi->back;
1377         struct i40e_hw *hw = &pf->hw;
1378         i40e_status status = 0;
1379         u32 flags = 0;
1380         int err = 0;
1381 
1382         flags = READ_ONCE(pf->flags);
1383         i40e_set_fec_in_flags(fec_cfg, &flags);
1384 
1385         /* Get the current phy config */
1386         memset(&abilities, 0, sizeof(abilities));
1387         status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1388                                               NULL);
1389         if (status) {
1390                 err = -EAGAIN;
1391                 goto done;
1392         }
1393 
1394         if (abilities.fec_cfg_curr_mod_ext_info != fec_cfg) {
1395                 struct i40e_aq_set_phy_config config;
1396 
1397                 memset(&config, 0, sizeof(config));
1398                 config.phy_type = abilities.phy_type;
1399                 config.abilities = abilities.abilities;
1400                 config.phy_type_ext = abilities.phy_type_ext;
1401                 config.link_speed = abilities.link_speed;
1402                 config.eee_capability = abilities.eee_capability;
1403                 config.eeer = abilities.eeer_val;
1404                 config.low_power_ctrl = abilities.d3_lpan;
1405                 config.fec_config = fec_cfg & I40E_AQ_PHY_FEC_CONFIG_MASK;
1406                 status = i40e_aq_set_phy_config(hw, &config, NULL);
1407                 if (status) {
1408                         netdev_info(netdev,
1409                                     "Set phy config failed, err %s aq_err %s\n",
1410                                     i40e_stat_str(hw, status),
1411                                     i40e_aq_str(hw, hw->aq.asq_last_status));
1412                         err = -EAGAIN;
1413                         goto done;
1414                 }
1415                 pf->flags = flags;
1416                 status = i40e_update_link_info(hw);
1417                 if (status)
1418                         /* debug level message only due to relation to the link
1419                          * itself rather than to the FEC settings
1420                          * (e.g. no physical connection etc.)
1421                          */
1422                         netdev_dbg(netdev,
1423                                    "Updating link info failed with err %s aq_err %s\n",
1424                                    i40e_stat_str(hw, status),
1425                                    i40e_aq_str(hw, hw->aq.asq_last_status));
1426         }
1427 
1428 done:
1429         return err;
1430 }
1431 
1432 static int i40e_get_fec_param(struct net_device *netdev,
1433                               struct ethtool_fecparam *fecparam)
1434 {
1435         struct i40e_netdev_priv *np = netdev_priv(netdev);
1436         struct i40e_aq_get_phy_abilities_resp abilities;
1437         struct i40e_pf *pf = np->vsi->back;
1438         struct i40e_hw *hw = &pf->hw;
1439         i40e_status status = 0;
1440         int err = 0;
1441         u8 fec_cfg;
1442 
1443         /* Get the current phy config */
1444         memset(&abilities, 0, sizeof(abilities));
1445         status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
1446                                               NULL);
1447         if (status) {
1448                 err = -EAGAIN;
1449                 goto done;
1450         }
1451 
1452         fecparam->fec = 0;
1453         fec_cfg = abilities.fec_cfg_curr_mod_ext_info;
1454         if (fec_cfg & I40E_AQ_SET_FEC_AUTO)
1455                 fecparam->fec |= ETHTOOL_FEC_AUTO;
1456         else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_RS |
1457                  I40E_AQ_SET_FEC_ABILITY_RS))
1458                 fecparam->fec |= ETHTOOL_FEC_RS;
1459         else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_KR |
1460                  I40E_AQ_SET_FEC_ABILITY_KR))
1461                 fecparam->fec |= ETHTOOL_FEC_BASER;
1462         if (fec_cfg == 0)
1463                 fecparam->fec |= ETHTOOL_FEC_OFF;
1464 
1465         if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_KR_ENA)
1466                 fecparam->active_fec = ETHTOOL_FEC_BASER;
1467         else if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_RS_ENA)
1468                 fecparam->active_fec = ETHTOOL_FEC_RS;
1469         else
1470                 fecparam->active_fec = ETHTOOL_FEC_OFF;
1471 done:
1472         return err;
1473 }
1474 
1475 static int i40e_set_fec_param(struct net_device *netdev,
1476                               struct ethtool_fecparam *fecparam)
1477 {
1478         struct i40e_netdev_priv *np = netdev_priv(netdev);
1479         struct i40e_pf *pf = np->vsi->back;
1480         struct i40e_hw *hw = &pf->hw;
1481         u8 fec_cfg = 0;
1482         int err = 0;
1483 
1484         if (hw->device_id != I40E_DEV_ID_25G_SFP28 &&
1485             hw->device_id != I40E_DEV_ID_25G_B) {
1486                 err = -EPERM;
1487                 goto done;
1488         }
1489 
1490         switch (fecparam->fec) {
1491         case ETHTOOL_FEC_AUTO:
1492                 fec_cfg = I40E_AQ_SET_FEC_AUTO;
1493                 break;
1494         case ETHTOOL_FEC_RS:
1495                 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS |
1496                              I40E_AQ_SET_FEC_ABILITY_RS);
1497                 break;
1498         case ETHTOOL_FEC_BASER:
1499                 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR |
1500                              I40E_AQ_SET_FEC_ABILITY_KR);
1501                 break;
1502         case ETHTOOL_FEC_OFF:
1503         case ETHTOOL_FEC_NONE:
1504                 fec_cfg = 0;
1505                 break;
1506         default:
1507                 dev_warn(&pf->pdev->dev, "Unsupported FEC mode: %d",
1508                          fecparam->fec);
1509                 err = -EINVAL;
1510                 goto done;
1511         }
1512 
1513         err = i40e_set_fec_cfg(netdev, fec_cfg);
1514 
1515 done:
1516         return err;
1517 }
1518 
1519 static int i40e_nway_reset(struct net_device *netdev)
1520 {
1521         /* restart autonegotiation */
1522         struct i40e_netdev_priv *np = netdev_priv(netdev);
1523         struct i40e_pf *pf = np->vsi->back;
1524         struct i40e_hw *hw = &pf->hw;
1525         bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP;
1526         i40e_status ret = 0;
1527 
1528         ret = i40e_aq_set_link_restart_an(hw, link_up, NULL);
1529         if (ret) {
1530                 netdev_info(netdev, "link restart failed, err %s aq_err %s\n",
1531                             i40e_stat_str(hw, ret),
1532                             i40e_aq_str(hw, hw->aq.asq_last_status));
1533                 return -EIO;
1534         }
1535 
1536         return 0;
1537 }
1538 
1539 /**
1540  * i40e_get_pauseparam -  Get Flow Control status
1541  * @netdev: netdevice structure
1542  * @pause: buffer to return pause parameters
1543  *
1544  * Return tx/rx-pause status
1545  **/
1546 static void i40e_get_pauseparam(struct net_device *netdev,
1547                                 struct ethtool_pauseparam *pause)
1548 {
1549         struct i40e_netdev_priv *np = netdev_priv(netdev);
1550         struct i40e_pf *pf = np->vsi->back;
1551         struct i40e_hw *hw = &pf->hw;
1552         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1553         struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
1554 
1555         pause->autoneg =
1556                 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
1557                   AUTONEG_ENABLE : AUTONEG_DISABLE);
1558 
1559         /* PFC enabled so report LFC as off */
1560         if (dcbx_cfg->pfc.pfcenable) {
1561                 pause->rx_pause = 0;
1562                 pause->tx_pause = 0;
1563                 return;
1564         }
1565 
1566         if (hw->fc.current_mode == I40E_FC_RX_PAUSE) {
1567                 pause->rx_pause = 1;
1568         } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) {
1569                 pause->tx_pause = 1;
1570         } else if (hw->fc.current_mode == I40E_FC_FULL) {
1571                 pause->rx_pause = 1;
1572                 pause->tx_pause = 1;
1573         }
1574 }
1575 
1576 /**
1577  * i40e_set_pauseparam - Set Flow Control parameter
1578  * @netdev: network interface device structure
1579  * @pause: return tx/rx flow control status
1580  **/
1581 static int i40e_set_pauseparam(struct net_device *netdev,
1582                                struct ethtool_pauseparam *pause)
1583 {
1584         struct i40e_netdev_priv *np = netdev_priv(netdev);
1585         struct i40e_pf *pf = np->vsi->back;
1586         struct i40e_vsi *vsi = np->vsi;
1587         struct i40e_hw *hw = &pf->hw;
1588         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1589         struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
1590         bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
1591         i40e_status status;
1592         u8 aq_failures;
1593         int err = 0;
1594         u32 is_an;
1595 
1596         /* Changing the port's flow control is not supported if this isn't the
1597          * port's controlling PF
1598          */
1599         if (hw->partition_id != 1) {
1600                 i40e_partition_setting_complaint(pf);
1601                 return -EOPNOTSUPP;
1602         }
1603 
1604         if (vsi != pf->vsi[pf->lan_vsi])
1605                 return -EOPNOTSUPP;
1606 
1607         is_an = hw_link_info->an_info & I40E_AQ_AN_COMPLETED;
1608         if (pause->autoneg != is_an) {
1609                 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
1610                 return -EOPNOTSUPP;
1611         }
1612 
1613         /* If we have link and don't have autoneg */
1614         if (!test_bit(__I40E_DOWN, pf->state) && !is_an) {
1615                 /* Send message that it might not necessarily work*/
1616                 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
1617         }
1618 
1619         if (dcbx_cfg->pfc.pfcenable) {
1620                 netdev_info(netdev,
1621                             "Priority flow control enabled. Cannot set link flow control.\n");
1622                 return -EOPNOTSUPP;
1623         }
1624 
1625         if (pause->rx_pause && pause->tx_pause)
1626                 hw->fc.requested_mode = I40E_FC_FULL;
1627         else if (pause->rx_pause && !pause->tx_pause)
1628                 hw->fc.requested_mode = I40E_FC_RX_PAUSE;
1629         else if (!pause->rx_pause && pause->tx_pause)
1630                 hw->fc.requested_mode = I40E_FC_TX_PAUSE;
1631         else if (!pause->rx_pause && !pause->tx_pause)
1632                 hw->fc.requested_mode = I40E_FC_NONE;
1633         else
1634                 return -EINVAL;
1635 
1636         /* Tell the OS link is going down, the link will go back up when fw
1637          * says it is ready asynchronously
1638          */
1639         i40e_print_link_message(vsi, false);
1640         netif_carrier_off(netdev);
1641         netif_tx_stop_all_queues(netdev);
1642 
1643         /* Set the fc mode and only restart an if link is up*/
1644         status = i40e_set_fc(hw, &aq_failures, link_up);
1645 
1646         if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) {
1647                 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n",
1648                             i40e_stat_str(hw, status),
1649                             i40e_aq_str(hw, hw->aq.asq_last_status));
1650                 err = -EAGAIN;
1651         }
1652         if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) {
1653                 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n",
1654                             i40e_stat_str(hw, status),
1655                             i40e_aq_str(hw, hw->aq.asq_last_status));
1656                 err = -EAGAIN;
1657         }
1658         if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) {
1659                 netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n",
1660                             i40e_stat_str(hw, status),
1661                             i40e_aq_str(hw, hw->aq.asq_last_status));
1662                 err = -EAGAIN;
1663         }
1664 
1665         if (!test_bit(__I40E_DOWN, pf->state) && is_an) {
1666                 /* Give it a little more time to try to come back */
1667                 msleep(75);
1668                 if (!test_bit(__I40E_DOWN, pf->state))
1669                         return i40e_nway_reset(netdev);
1670         }
1671 
1672         return err;
1673 }
1674 
1675 static u32 i40e_get_msglevel(struct net_device *netdev)
1676 {
1677         struct i40e_netdev_priv *np = netdev_priv(netdev);
1678         struct i40e_pf *pf = np->vsi->back;
1679         u32 debug_mask = pf->hw.debug_mask;
1680 
1681         if (debug_mask)
1682                 netdev_info(netdev, "i40e debug_mask: 0x%08X\n", debug_mask);
1683 
1684         return pf->msg_enable;
1685 }
1686 
1687 static void i40e_set_msglevel(struct net_device *netdev, u32 data)
1688 {
1689         struct i40e_netdev_priv *np = netdev_priv(netdev);
1690         struct i40e_pf *pf = np->vsi->back;
1691 
1692         if (I40E_DEBUG_USER & data)
1693                 pf->hw.debug_mask = data;
1694         else
1695                 pf->msg_enable = data;
1696 }
1697 
1698 static int i40e_get_regs_len(struct net_device *netdev)
1699 {
1700         int reg_count = 0;
1701         int i;
1702 
1703         for (i = 0; i40e_reg_list[i].offset != 0; i++)
1704                 reg_count += i40e_reg_list[i].elements;
1705 
1706         return reg_count * sizeof(u32);
1707 }
1708 
1709 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
1710                           void *p)
1711 {
1712         struct i40e_netdev_priv *np = netdev_priv(netdev);
1713         struct i40e_pf *pf = np->vsi->back;
1714         struct i40e_hw *hw = &pf->hw;
1715         u32 *reg_buf = p;
1716         unsigned int i, j, ri;
1717         u32 reg;
1718 
1719         /* Tell ethtool which driver-version-specific regs output we have.
1720          *
1721          * At some point, if we have ethtool doing special formatting of
1722          * this data, it will rely on this version number to know how to
1723          * interpret things.  Hence, this needs to be updated if/when the
1724          * diags register table is changed.
1725          */
1726         regs->version = 1;
1727 
1728         /* loop through the diags reg table for what to print */
1729         ri = 0;
1730         for (i = 0; i40e_reg_list[i].offset != 0; i++) {
1731                 for (j = 0; j < i40e_reg_list[i].elements; j++) {
1732                         reg = i40e_reg_list[i].offset
1733                                 + (j * i40e_reg_list[i].stride);
1734                         reg_buf[ri++] = rd32(hw, reg);
1735                 }
1736         }
1737 
1738 }
1739 
1740 static int i40e_get_eeprom(struct net_device *netdev,
1741                            struct ethtool_eeprom *eeprom, u8 *bytes)
1742 {
1743         struct i40e_netdev_priv *np = netdev_priv(netdev);
1744         struct i40e_hw *hw = &np->vsi->back->hw;
1745         struct i40e_pf *pf = np->vsi->back;
1746         int ret_val = 0, len, offset;
1747         u8 *eeprom_buff;
1748         u16 i, sectors;
1749         bool last;
1750         u32 magic;
1751 
1752 #define I40E_NVM_SECTOR_SIZE  4096
1753         if (eeprom->len == 0)
1754                 return -EINVAL;
1755 
1756         /* check for NVMUpdate access method */
1757         magic = hw->vendor_id | (hw->device_id << 16);
1758         if (eeprom->magic && eeprom->magic != magic) {
1759                 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1760                 int errno = 0;
1761 
1762                 /* make sure it is the right magic for NVMUpdate */
1763                 if ((eeprom->magic >> 16) != hw->device_id)
1764                         errno = -EINVAL;
1765                 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
1766                          test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
1767                         errno = -EBUSY;
1768                 else
1769                         ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1770 
1771                 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1772                         dev_info(&pf->pdev->dev,
1773                                  "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1774                                  ret_val, hw->aq.asq_last_status, errno,
1775                                  (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1776                                  cmd->offset, cmd->data_size);
1777 
1778                 return errno;
1779         }
1780 
1781         /* normal ethtool get_eeprom support */
1782         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
1783 
1784         eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL);
1785         if (!eeprom_buff)
1786                 return -ENOMEM;
1787 
1788         ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
1789         if (ret_val) {
1790                 dev_info(&pf->pdev->dev,
1791                          "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1792                          ret_val, hw->aq.asq_last_status);
1793                 goto free_buff;
1794         }
1795 
1796         sectors = eeprom->len / I40E_NVM_SECTOR_SIZE;
1797         sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0;
1798         len = I40E_NVM_SECTOR_SIZE;
1799         last = false;
1800         for (i = 0; i < sectors; i++) {
1801                 if (i == (sectors - 1)) {
1802                         len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i);
1803                         last = true;
1804                 }
1805                 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i),
1806                 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len,
1807                                 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i),
1808                                 last, NULL);
1809                 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) {
1810                         dev_info(&pf->pdev->dev,
1811                                  "read NVM failed, invalid offset 0x%x\n",
1812                                  offset);
1813                         break;
1814                 } else if (ret_val &&
1815                            hw->aq.asq_last_status == I40E_AQ_RC_EACCES) {
1816                         dev_info(&pf->pdev->dev,
1817                                  "read NVM failed, access, offset 0x%x\n",
1818                                  offset);
1819                         break;
1820                 } else if (ret_val) {
1821                         dev_info(&pf->pdev->dev,
1822                                  "read NVM failed offset %d err=%d status=0x%x\n",
1823                                  offset, ret_val, hw->aq.asq_last_status);
1824                         break;
1825                 }
1826         }
1827 
1828         i40e_release_nvm(hw);
1829         memcpy(bytes, (u8 *)eeprom_buff, eeprom->len);
1830 free_buff:
1831         kfree(eeprom_buff);
1832         return ret_val;
1833 }
1834 
1835 static int i40e_get_eeprom_len(struct net_device *netdev)
1836 {
1837         struct i40e_netdev_priv *np = netdev_priv(netdev);
1838         struct i40e_hw *hw = &np->vsi->back->hw;
1839         u32 val;
1840 
1841 #define X722_EEPROM_SCOPE_LIMIT 0x5B9FFF
1842         if (hw->mac.type == I40E_MAC_X722) {
1843                 val = X722_EEPROM_SCOPE_LIMIT + 1;
1844                 return val;
1845         }
1846         val = (rd32(hw, I40E_GLPCI_LBARCTRL)
1847                 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK)
1848                 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT;
1849         /* register returns value in power of 2, 64Kbyte chunks. */
1850         val = (64 * 1024) * BIT(val);
1851         return val;
1852 }
1853 
1854 static int i40e_set_eeprom(struct net_device *netdev,
1855                            struct ethtool_eeprom *eeprom, u8 *bytes)
1856 {
1857         struct i40e_netdev_priv *np = netdev_priv(netdev);
1858         struct i40e_hw *hw = &np->vsi->back->hw;
1859         struct i40e_pf *pf = np->vsi->back;
1860         struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1861         int ret_val = 0;
1862         int errno = 0;
1863         u32 magic;
1864 
1865         /* normal ethtool set_eeprom is not supported */
1866         magic = hw->vendor_id | (hw->device_id << 16);
1867         if (eeprom->magic == magic)
1868                 errno = -EOPNOTSUPP;
1869         /* check for NVMUpdate access method */
1870         else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id)
1871                 errno = -EINVAL;
1872         else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
1873                  test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
1874                 errno = -EBUSY;
1875         else
1876                 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1877 
1878         if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1879                 dev_info(&pf->pdev->dev,
1880                          "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1881                          ret_val, hw->aq.asq_last_status, errno,
1882                          (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1883                          cmd->offset, cmd->data_size);
1884 
1885         return errno;
1886 }
1887 
1888 static void i40e_get_drvinfo(struct net_device *netdev,
1889                              struct ethtool_drvinfo *drvinfo)
1890 {
1891         struct i40e_netdev_priv *np = netdev_priv(netdev);
1892         struct i40e_vsi *vsi = np->vsi;
1893         struct i40e_pf *pf = vsi->back;
1894 
1895         strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver));
1896         strlcpy(drvinfo->version, i40e_driver_version_str,
1897                 sizeof(drvinfo->version));
1898         strlcpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw),
1899                 sizeof(drvinfo->fw_version));
1900         strlcpy(drvinfo->bus_info, pci_name(pf->pdev),
1901                 sizeof(drvinfo->bus_info));
1902         drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN;
1903         if (pf->hw.pf_id == 0)
1904                 drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN;
1905 }
1906 
1907 static void i40e_get_ringparam(struct net_device *netdev,
1908                                struct ethtool_ringparam *ring)
1909 {
1910         struct i40e_netdev_priv *np = netdev_priv(netdev);
1911         struct i40e_pf *pf = np->vsi->back;
1912         struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
1913 
1914         ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1915         ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1916         ring->rx_mini_max_pending = 0;
1917         ring->rx_jumbo_max_pending = 0;
1918         ring->rx_pending = vsi->rx_rings[0]->count;
1919         ring->tx_pending = vsi->tx_rings[0]->count;
1920         ring->rx_mini_pending = 0;
1921         ring->rx_jumbo_pending = 0;
1922 }
1923 
1924 static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index)
1925 {
1926         if (i40e_enabled_xdp_vsi(vsi)) {
1927                 return index < vsi->num_queue_pairs ||
1928                         (index >= vsi->alloc_queue_pairs &&
1929                          index < vsi->alloc_queue_pairs + vsi->num_queue_pairs);
1930         }
1931 
1932         return index < vsi->num_queue_pairs;
1933 }
1934 
1935 static int i40e_set_ringparam(struct net_device *netdev,
1936                               struct ethtool_ringparam *ring)
1937 {
1938         struct i40e_ring *tx_rings = NULL, *rx_rings = NULL;
1939         struct i40e_netdev_priv *np = netdev_priv(netdev);
1940         struct i40e_hw *hw = &np->vsi->back->hw;
1941         struct i40e_vsi *vsi = np->vsi;
1942         struct i40e_pf *pf = vsi->back;
1943         u32 new_rx_count, new_tx_count;
1944         u16 tx_alloc_queue_pairs;
1945         int timeout = 50;
1946         int i, err = 0;
1947 
1948         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
1949                 return -EINVAL;
1950 
1951         if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1952             ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS ||
1953             ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1954             ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) {
1955                 netdev_info(netdev,
1956                             "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n",
1957                             ring->tx_pending, ring->rx_pending,
1958                             I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS);
1959                 return -EINVAL;
1960         }
1961 
1962         new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1963         new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1964 
1965         /* if nothing to do return success */
1966         if ((new_tx_count == vsi->tx_rings[0]->count) &&
1967             (new_rx_count == vsi->rx_rings[0]->count))
1968                 return 0;
1969 
1970         /* If there is a AF_XDP UMEM attached to any of Rx rings,
1971          * disallow changing the number of descriptors -- regardless
1972          * if the netdev is running or not.
1973          */
1974         if (i40e_xsk_any_rx_ring_enabled(vsi))
1975                 return -EBUSY;
1976 
1977         while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) {
1978                 timeout--;
1979                 if (!timeout)
1980                         return -EBUSY;
1981                 usleep_range(1000, 2000);
1982         }
1983 
1984         if (!netif_running(vsi->netdev)) {
1985                 /* simple case - set for the next time the netdev is started */
1986                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1987                         vsi->tx_rings[i]->count = new_tx_count;
1988                         vsi->rx_rings[i]->count = new_rx_count;
1989                         if (i40e_enabled_xdp_vsi(vsi))
1990                                 vsi->xdp_rings[i]->count = new_tx_count;
1991                 }
1992                 vsi->num_tx_desc = new_tx_count;
1993                 vsi->num_rx_desc = new_rx_count;
1994                 goto done;
1995         }
1996 
1997         /* We can't just free everything and then setup again,
1998          * because the ISRs in MSI-X mode get passed pointers
1999          * to the Tx and Rx ring structs.
2000          */
2001 
2002         /* alloc updated Tx and XDP Tx resources */
2003         tx_alloc_queue_pairs = vsi->alloc_queue_pairs *
2004                                (i40e_enabled_xdp_vsi(vsi) ? 2 : 1);
2005         if (new_tx_count != vsi->tx_rings[0]->count) {
2006                 netdev_info(netdev,
2007                             "Changing Tx descriptor count from %d to %d.\n",
2008                             vsi->tx_rings[0]->count, new_tx_count);
2009                 tx_rings = kcalloc(tx_alloc_queue_pairs,
2010                                    sizeof(struct i40e_ring), GFP_KERNEL);
2011                 if (!tx_rings) {
2012                         err = -ENOMEM;
2013                         goto done;
2014                 }
2015 
2016                 for (i = 0; i < tx_alloc_queue_pairs; i++) {
2017                         if (!i40e_active_tx_ring_index(vsi, i))
2018                                 continue;
2019 
2020                         tx_rings[i] = *vsi->tx_rings[i];
2021                         tx_rings[i].count = new_tx_count;
2022                         /* the desc and bi pointers will be reallocated in the
2023                          * setup call
2024                          */
2025                         tx_rings[i].desc = NULL;
2026                         tx_rings[i].rx_bi = NULL;
2027                         err = i40e_setup_tx_descriptors(&tx_rings[i]);
2028                         if (err) {
2029                                 while (i) {
2030                                         i--;
2031                                         if (!i40e_active_tx_ring_index(vsi, i))
2032                                                 continue;
2033                                         i40e_free_tx_resources(&tx_rings[i]);
2034                                 }
2035                                 kfree(tx_rings);
2036                                 tx_rings = NULL;
2037 
2038                                 goto done;
2039                         }
2040                 }
2041         }
2042 
2043         /* alloc updated Rx resources */
2044         if (new_rx_count != vsi->rx_rings[0]->count) {
2045                 netdev_info(netdev,
2046                             "Changing Rx descriptor count from %d to %d\n",
2047                             vsi->rx_rings[0]->count, new_rx_count);
2048                 rx_rings = kcalloc(vsi->alloc_queue_pairs,
2049                                    sizeof(struct i40e_ring), GFP_KERNEL);
2050                 if (!rx_rings) {
2051                         err = -ENOMEM;
2052                         goto free_tx;
2053                 }
2054 
2055                 for (i = 0; i < vsi->num_queue_pairs; i++) {
2056                         u16 unused;
2057 
2058                         /* clone ring and setup updated count */
2059                         rx_rings[i] = *vsi->rx_rings[i];
2060                         rx_rings[i].count = new_rx_count;
2061                         /* the desc and bi pointers will be reallocated in the
2062                          * setup call
2063                          */
2064                         rx_rings[i].desc = NULL;
2065                         rx_rings[i].rx_bi = NULL;
2066                         /* Clear cloned XDP RX-queue info before setup call */
2067                         memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq));
2068                         /* this is to allow wr32 to have something to write to
2069                          * during early allocation of Rx buffers
2070                          */
2071                         rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS;
2072                         err = i40e_setup_rx_descriptors(&rx_rings[i]);
2073                         if (err)
2074                                 goto rx_unwind;
2075 
2076                         /* now allocate the Rx buffers to make sure the OS
2077                          * has enough memory, any failure here means abort
2078                          */
2079                         unused = I40E_DESC_UNUSED(&rx_rings[i]);
2080                         err = i40e_alloc_rx_buffers(&rx_rings[i], unused);
2081 rx_unwind:
2082                         if (err) {
2083                                 do {
2084                                         i40e_free_rx_resources(&rx_rings[i]);
2085                                 } while (i--);
2086                                 kfree(rx_rings);
2087                                 rx_rings = NULL;
2088 
2089                                 goto free_tx;
2090                         }
2091                 }
2092         }
2093 
2094         /* Bring interface down, copy in the new ring info,
2095          * then restore the interface
2096          */
2097         i40e_down(vsi);
2098 
2099         if (tx_rings) {
2100                 for (i = 0; i < tx_alloc_queue_pairs; i++) {
2101                         if (i40e_active_tx_ring_index(vsi, i)) {
2102                                 i40e_free_tx_resources(vsi->tx_rings[i]);
2103                                 *vsi->tx_rings[i] = tx_rings[i];
2104                         }
2105                 }
2106                 kfree(tx_rings);
2107                 tx_rings = NULL;
2108         }
2109 
2110         if (rx_rings) {
2111                 for (i = 0; i < vsi->num_queue_pairs; i++) {
2112                         i40e_free_rx_resources(vsi->rx_rings[i]);
2113                         /* get the real tail offset */
2114                         rx_rings[i].tail = vsi->rx_rings[i]->tail;
2115                         /* this is to fake out the allocation routine
2116                          * into thinking it has to realloc everything
2117                          * but the recycling logic will let us re-use
2118                          * the buffers allocated above
2119                          */
2120                         rx_rings[i].next_to_use = 0;
2121                         rx_rings[i].next_to_clean = 0;
2122                         rx_rings[i].next_to_alloc = 0;
2123                         /* do a struct copy */
2124                         *vsi->rx_rings[i] = rx_rings[i];
2125                 }
2126                 kfree(rx_rings);
2127                 rx_rings = NULL;
2128         }
2129 
2130         vsi->num_tx_desc = new_tx_count;
2131         vsi->num_rx_desc = new_rx_count;
2132         i40e_up(vsi);
2133 
2134 free_tx:
2135         /* error cleanup if the Rx allocations failed after getting Tx */
2136         if (tx_rings) {
2137                 for (i = 0; i < tx_alloc_queue_pairs; i++) {
2138                         if (i40e_active_tx_ring_index(vsi, i))
2139                                 i40e_free_tx_resources(vsi->tx_rings[i]);
2140                 }
2141                 kfree(tx_rings);
2142                 tx_rings = NULL;
2143         }
2144 
2145 done:
2146         clear_bit(__I40E_CONFIG_BUSY, pf->state);
2147 
2148         return err;
2149 }
2150 
2151 /**
2152  * i40e_get_stats_count - return the stats count for a device
2153  * @netdev: the netdev to return the count for
2154  *
2155  * Returns the total number of statistics for this netdev. Note that even
2156  * though this is a function, it is required that the count for a specific
2157  * netdev must never change. Basing the count on static values such as the
2158  * maximum number of queues or the device type is ok. However, the API for
2159  * obtaining stats is *not* safe against changes based on non-static
2160  * values such as the *current* number of queues, or runtime flags.
2161  *
2162  * If a statistic is not always enabled, return it as part of the count
2163  * anyways, always return its string, and report its value as zero.
2164  **/
2165 static int i40e_get_stats_count(struct net_device *netdev)
2166 {
2167         struct i40e_netdev_priv *np = netdev_priv(netdev);
2168         struct i40e_vsi *vsi = np->vsi;
2169         struct i40e_pf *pf = vsi->back;
2170         int stats_len;
2171 
2172         if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1)
2173                 stats_len = I40E_PF_STATS_LEN;
2174         else
2175                 stats_len = I40E_VSI_STATS_LEN;
2176 
2177         /* The number of stats reported for a given net_device must remain
2178          * constant throughout the life of that device.
2179          *
2180          * This is because the API for obtaining the size, strings, and stats
2181          * is spread out over three separate ethtool ioctls. There is no safe
2182          * way to lock the number of stats across these calls, so we must
2183          * assume that they will never change.
2184          *
2185          * Due to this, we report the maximum number of queues, even if not
2186          * every queue is currently configured. Since we always allocate
2187          * queues in pairs, we'll just use netdev->num_tx_queues * 2. This
2188          * works because the num_tx_queues is set at device creation and never
2189          * changes.
2190          */
2191         stats_len += I40E_QUEUE_STATS_LEN * 2 * netdev->num_tx_queues;
2192 
2193         return stats_len;
2194 }
2195 
2196 static int i40e_get_sset_count(struct net_device *netdev, int sset)
2197 {
2198         struct i40e_netdev_priv *np = netdev_priv(netdev);
2199         struct i40e_vsi *vsi = np->vsi;
2200         struct i40e_pf *pf = vsi->back;
2201 
2202         switch (sset) {
2203         case ETH_SS_TEST:
2204                 return I40E_TEST_LEN;
2205         case ETH_SS_STATS:
2206                 return i40e_get_stats_count(netdev);
2207         case ETH_SS_PRIV_FLAGS:
2208                 return I40E_PRIV_FLAGS_STR_LEN +
2209                         (pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0);
2210         default:
2211                 return -EOPNOTSUPP;
2212         }
2213 }
2214 
2215 /**
2216  * i40e_get_pfc_stats - copy HW PFC statistics to formatted structure
2217  * @pf: the PF device structure
2218  * @i: the priority value to copy
2219  *
2220  * The PFC stats are found as arrays in pf->stats, which is not easy to pass
2221  * into i40e_add_ethtool_stats. Produce a formatted i40e_pfc_stats structure
2222  * of the PFC stats for the given priority.
2223  **/
2224 static inline struct i40e_pfc_stats
2225 i40e_get_pfc_stats(struct i40e_pf *pf, unsigned int i)
2226 {
2227 #define I40E_GET_PFC_STAT(stat, priority) \
2228         .stat = pf->stats.stat[priority]
2229 
2230         struct i40e_pfc_stats pfc = {
2231                 I40E_GET_PFC_STAT(priority_xon_rx, i),
2232                 I40E_GET_PFC_STAT(priority_xoff_rx, i),
2233                 I40E_GET_PFC_STAT(priority_xon_tx, i),
2234                 I40E_GET_PFC_STAT(priority_xoff_tx, i),
2235                 I40E_GET_PFC_STAT(priority_xon_2_xoff, i),
2236         };
2237         return pfc;
2238 }
2239 
2240 /**
2241  * i40e_get_ethtool_stats - copy stat values into supplied buffer
2242  * @netdev: the netdev to collect stats for
2243  * @stats: ethtool stats command structure
2244  * @data: ethtool supplied buffer
2245  *
2246  * Copy the stats values for this netdev into the buffer. Expects data to be
2247  * pre-allocated to the size returned by i40e_get_stats_count.. Note that all
2248  * statistics must be copied in a static order, and the count must not change
2249  * for a given netdev. See i40e_get_stats_count for more details.
2250  *
2251  * If a statistic is not currently valid (such as a disabled queue), this
2252  * function reports its value as zero.
2253  **/
2254 static void i40e_get_ethtool_stats(struct net_device *netdev,
2255                                    struct ethtool_stats *stats, u64 *data)
2256 {
2257         struct i40e_netdev_priv *np = netdev_priv(netdev);
2258         struct i40e_vsi *vsi = np->vsi;
2259         struct i40e_pf *pf = vsi->back;
2260         struct i40e_veb *veb = NULL;
2261         unsigned int i;
2262         bool veb_stats;
2263         u64 *p = data;
2264 
2265         i40e_update_stats(vsi);
2266 
2267         i40e_add_ethtool_stats(&data, i40e_get_vsi_stats_struct(vsi),
2268                                i40e_gstrings_net_stats);
2269 
2270         i40e_add_ethtool_stats(&data, vsi, i40e_gstrings_misc_stats);
2271 
2272         rcu_read_lock();
2273         for (i = 0; i < netdev->num_tx_queues; i++) {
2274                 i40e_add_queue_stats(&data, READ_ONCE(vsi->tx_rings[i]));
2275                 i40e_add_queue_stats(&data, READ_ONCE(vsi->rx_rings[i]));
2276         }
2277         rcu_read_unlock();
2278 
2279         if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
2280                 goto check_data_pointer;
2281 
2282         veb_stats = ((pf->lan_veb != I40E_NO_VEB) &&
2283                      (pf->lan_veb < I40E_MAX_VEB) &&
2284                      (pf->flags & I40E_FLAG_VEB_STATS_ENABLED));
2285 
2286         if (veb_stats) {
2287                 veb = pf->veb[pf->lan_veb];
2288                 i40e_update_veb_stats(veb);
2289         }
2290 
2291         /* If veb stats aren't enabled, pass NULL instead of the veb so that
2292          * we initialize stats to zero and update the data pointer
2293          * intelligently
2294          */
2295         i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL,
2296                                i40e_gstrings_veb_stats);
2297 
2298         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
2299                 i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL,
2300                                        i40e_gstrings_veb_tc_stats);
2301 
2302         i40e_add_ethtool_stats(&data, pf, i40e_gstrings_stats);
2303 
2304         for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
2305                 struct i40e_pfc_stats pfc = i40e_get_pfc_stats(pf, i);
2306 
2307                 i40e_add_ethtool_stats(&data, &pfc, i40e_gstrings_pfc_stats);
2308         }
2309 
2310 check_data_pointer:
2311         WARN_ONCE(data - p != i40e_get_stats_count(netdev),
2312                   "ethtool stats count mismatch!");
2313 }
2314 
2315 /**
2316  * i40e_get_stat_strings - copy stat strings into supplied buffer
2317  * @netdev: the netdev to collect strings for
2318  * @data: supplied buffer to copy strings into
2319  *
2320  * Copy the strings related to stats for this netdev. Expects data to be
2321  * pre-allocated with the size reported by i40e_get_stats_count. Note that the
2322  * strings must be copied in a static order and the total count must not
2323  * change for a given netdev. See i40e_get_stats_count for more details.
2324  **/
2325 static void i40e_get_stat_strings(struct net_device *netdev, u8 *data)
2326 {
2327         struct i40e_netdev_priv *np = netdev_priv(netdev);
2328         struct i40e_vsi *vsi = np->vsi;
2329         struct i40e_pf *pf = vsi->back;
2330         unsigned int i;
2331         u8 *p = data;
2332 
2333         i40e_add_stat_strings(&data, i40e_gstrings_net_stats);
2334 
2335         i40e_add_stat_strings(&data, i40e_gstrings_misc_stats);
2336 
2337         for (i = 0; i < netdev->num_tx_queues; i++) {
2338                 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats,
2339                                       "tx", i);
2340                 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats,
2341                                       "rx", i);
2342         }
2343 
2344         if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
2345                 goto check_data_pointer;
2346 
2347         i40e_add_stat_strings(&data, i40e_gstrings_veb_stats);
2348 
2349         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
2350                 i40e_add_stat_strings(&data, i40e_gstrings_veb_tc_stats, i);
2351 
2352         i40e_add_stat_strings(&data, i40e_gstrings_stats);
2353 
2354         for (i = 0; i < I40E_MAX_USER_PRIORITY; i++)
2355                 i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i);
2356 
2357 check_data_pointer:
2358         WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN,
2359                   "stat strings count mismatch!");
2360 }
2361 
2362 static void i40e_get_priv_flag_strings(struct net_device *netdev, u8 *data)
2363 {
2364         struct i40e_netdev_priv *np = netdev_priv(netdev);
2365         struct i40e_vsi *vsi = np->vsi;
2366         struct i40e_pf *pf = vsi->back;
2367         char *p = (char *)data;
2368         unsigned int i;
2369 
2370         for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
2371                 snprintf(p, ETH_GSTRING_LEN, "%s",
2372                          i40e_gstrings_priv_flags[i].flag_string);
2373                 p += ETH_GSTRING_LEN;
2374         }
2375         if (pf->hw.pf_id != 0)
2376                 return;
2377         for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++) {
2378                 snprintf(p, ETH_GSTRING_LEN, "%s",
2379                          i40e_gl_gstrings_priv_flags[i].flag_string);
2380                 p += ETH_GSTRING_LEN;
2381         }
2382 }
2383 
2384 static void i40e_get_strings(struct net_device *netdev, u32 stringset,
2385                              u8 *data)
2386 {
2387         switch (stringset) {
2388         case ETH_SS_TEST:
2389                 memcpy(data, i40e_gstrings_test,
2390                        I40E_TEST_LEN * ETH_GSTRING_LEN);
2391                 break;
2392         case ETH_SS_STATS:
2393                 i40e_get_stat_strings(netdev, data);
2394                 break;
2395         case ETH_SS_PRIV_FLAGS:
2396                 i40e_get_priv_flag_strings(netdev, data);
2397                 break;
2398         default:
2399                 break;
2400         }
2401 }
2402 
2403 static int i40e_get_ts_info(struct net_device *dev,
2404                             struct ethtool_ts_info *info)
2405 {
2406         struct i40e_pf *pf = i40e_netdev_to_pf(dev);
2407 
2408         /* only report HW timestamping if PTP is enabled */
2409         if (!(pf->flags & I40E_FLAG_PTP))
2410                 return ethtool_op_get_ts_info(dev, info);
2411 
2412         info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
2413                                 SOF_TIMESTAMPING_RX_SOFTWARE |
2414                                 SOF_TIMESTAMPING_SOFTWARE |
2415                                 SOF_TIMESTAMPING_TX_HARDWARE |
2416                                 SOF_TIMESTAMPING_RX_HARDWARE |
2417                                 SOF_TIMESTAMPING_RAW_HARDWARE;
2418 
2419         if (pf->ptp_clock)
2420                 info->phc_index = ptp_clock_index(pf->ptp_clock);
2421         else
2422                 info->phc_index = -1;
2423 
2424         info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
2425 
2426         info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
2427                            BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
2428                            BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
2429                            BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ);
2430 
2431         if (pf->hw_features & I40E_HW_PTP_L4_CAPABLE)
2432                 info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
2433                                     BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
2434                                     BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) |
2435                                     BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
2436                                     BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) |
2437                                     BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
2438                                     BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
2439                                     BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ);
2440 
2441         return 0;
2442 }
2443 
2444 static u64 i40e_link_test(struct net_device *netdev, u64 *data)
2445 {
2446         struct i40e_netdev_priv *np = netdev_priv(netdev);
2447         struct i40e_pf *pf = np->vsi->back;
2448         i40e_status status;
2449         bool link_up = false;
2450 
2451         netif_info(pf, hw, netdev, "link test\n");
2452         status = i40e_get_link_status(&pf->hw, &link_up);
2453         if (status) {
2454                 netif_err(pf, drv, netdev, "link query timed out, please retry test\n");
2455                 *data = 1;
2456                 return *data;
2457         }
2458 
2459         if (link_up)
2460                 *data = 0;
2461         else
2462                 *data = 1;
2463 
2464         return *data;
2465 }
2466 
2467 static u64 i40e_reg_test(struct net_device *netdev, u64 *data)
2468 {
2469         struct i40e_netdev_priv *np = netdev_priv(netdev);
2470         struct i40e_pf *pf = np->vsi->back;
2471 
2472         netif_info(pf, hw, netdev, "register test\n");
2473         *data = i40e_diag_reg_test(&pf->hw);
2474 
2475         return *data;
2476 }
2477 
2478 static u64 i40e_eeprom_test(struct net_device *netdev, u64 *data)
2479 {
2480         struct i40e_netdev_priv *np = netdev_priv(netdev);
2481         struct i40e_pf *pf = np->vsi->back;
2482 
2483         netif_info(pf, hw, netdev, "eeprom test\n");
2484         *data = i40e_diag_eeprom_test(&pf->hw);
2485 
2486         /* forcebly clear the NVM Update state machine */
2487         pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT;
2488 
2489         return *data;
2490 }
2491 
2492 static u64 i40e_intr_test(struct net_device *netdev, u64 *data)
2493 {
2494         struct i40e_netdev_priv *np = netdev_priv(netdev);
2495         struct i40e_pf *pf = np->vsi->back;
2496         u16 swc_old = pf->sw_int_count;
2497 
2498         netif_info(pf, hw, netdev, "interrupt test\n");
2499         wr32(&pf->hw, I40E_PFINT_DYN_CTL0,
2500              (I40E_PFINT_DYN_CTL0_INTENA_MASK |
2501               I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK |
2502               I40E_PFINT_DYN_CTL0_ITR_INDX_MASK |
2503               I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK |
2504               I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK));
2505         usleep_range(1000, 2000);
2506         *data = (swc_old == pf->sw_int_count);
2507 
2508         return *data;
2509 }
2510 
2511 static inline bool i40e_active_vfs(struct i40e_pf *pf)
2512 {
2513         struct i40e_vf *vfs = pf->vf;
2514         int i;
2515 
2516         for (i = 0; i < pf->num_alloc_vfs; i++)
2517                 if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states))
2518                         return true;
2519         return false;
2520 }
2521 
2522 static inline bool i40e_active_vmdqs(struct i40e_pf *pf)
2523 {
2524         return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2);
2525 }
2526 
2527 static void i40e_diag_test(struct net_device *netdev,
2528                            struct ethtool_test *eth_test, u64 *data)
2529 {
2530         struct i40e_netdev_priv *np = netdev_priv(netdev);
2531         bool if_running = netif_running(netdev);
2532         struct i40e_pf *pf = np->vsi->back;
2533 
2534         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
2535                 /* Offline tests */
2536                 netif_info(pf, drv, netdev, "offline testing starting\n");
2537 
2538                 set_bit(__I40E_TESTING, pf->state);
2539 
2540                 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) {
2541                         dev_warn(&pf->pdev->dev,
2542                                  "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");
2543                         data[I40E_ETH_TEST_REG]         = 1;
2544                         data[I40E_ETH_TEST_EEPROM]      = 1;
2545                         data[I40E_ETH_TEST_INTR]        = 1;
2546                         data[I40E_ETH_TEST_LINK]        = 1;
2547                         eth_test->flags |= ETH_TEST_FL_FAILED;
2548                         clear_bit(__I40E_TESTING, pf->state);
2549                         goto skip_ol_tests;
2550                 }
2551 
2552                 /* If the device is online then take it offline */
2553                 if (if_running)
2554                         /* indicate we're in test mode */
2555                         i40e_close(netdev);
2556                 else
2557                         /* This reset does not affect link - if it is
2558                          * changed to a type of reset that does affect
2559                          * link then the following link test would have
2560                          * to be moved to before the reset
2561                          */
2562                         i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
2563 
2564                 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
2565                         eth_test->flags |= ETH_TEST_FL_FAILED;
2566 
2567                 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM]))
2568                         eth_test->flags |= ETH_TEST_FL_FAILED;
2569 
2570                 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR]))
2571                         eth_test->flags |= ETH_TEST_FL_FAILED;
2572 
2573                 /* run reg test last, a reset is required after it */
2574                 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG]))
2575                         eth_test->flags |= ETH_TEST_FL_FAILED;
2576 
2577                 clear_bit(__I40E_TESTING, pf->state);
2578                 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
2579 
2580                 if (if_running)
2581                         i40e_open(netdev);
2582         } else {
2583                 /* Online tests */
2584                 netif_info(pf, drv, netdev, "online testing starting\n");
2585 
2586                 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
2587                         eth_test->flags |= ETH_TEST_FL_FAILED;
2588 
2589                 /* Offline only tests, not run in online; pass by default */
2590                 data[I40E_ETH_TEST_REG] = 0;
2591                 data[I40E_ETH_TEST_EEPROM] = 0;
2592                 data[I40E_ETH_TEST_INTR] = 0;
2593         }
2594 
2595 skip_ol_tests:
2596 
2597         netif_info(pf, drv, netdev, "testing finished\n");
2598 }
2599 
2600 static void i40e_get_wol(struct net_device *netdev,
2601                          struct ethtool_wolinfo *wol)
2602 {
2603         struct i40e_netdev_priv *np = netdev_priv(netdev);
2604         struct i40e_pf *pf = np->vsi->back;
2605         struct i40e_hw *hw = &pf->hw;
2606         u16 wol_nvm_bits;
2607 
2608         /* NVM bit on means WoL disabled for the port */
2609         i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
2610         if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) {
2611                 wol->supported = 0;
2612                 wol->wolopts = 0;
2613         } else {
2614                 wol->supported = WAKE_MAGIC;
2615                 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0);
2616         }
2617 }
2618 
2619 /**
2620  * i40e_set_wol - set the WakeOnLAN configuration
2621  * @netdev: the netdev in question
2622  * @wol: the ethtool WoL setting data
2623  **/
2624 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
2625 {
2626         struct i40e_netdev_priv *np = netdev_priv(netdev);
2627         struct i40e_pf *pf = np->vsi->back;
2628         struct i40e_vsi *vsi = np->vsi;
2629         struct i40e_hw *hw = &pf->hw;
2630         u16 wol_nvm_bits;
2631 
2632         /* WoL not supported if this isn't the controlling PF on the port */
2633         if (hw->partition_id != 1) {
2634                 i40e_partition_setting_complaint(pf);
2635                 return -EOPNOTSUPP;
2636         }
2637 
2638         if (vsi != pf->vsi[pf->lan_vsi])
2639                 return -EOPNOTSUPP;
2640 
2641         /* NVM bit on means WoL disabled for the port */
2642         i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
2643         if (BIT(hw->port) & wol_nvm_bits)
2644                 return -EOPNOTSUPP;
2645 
2646         /* only magic packet is supported */
2647         if (wol->wolopts & ~WAKE_MAGIC)
2648                 return -EOPNOTSUPP;
2649 
2650         /* is this a new value? */
2651         if (pf->wol_en != !!wol->wolopts) {
2652                 pf->wol_en = !!wol->wolopts;
2653                 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en);
2654         }
2655 
2656         return 0;
2657 }
2658 
2659 static int i40e_set_phys_id(struct net_device *netdev,
2660                             enum ethtool_phys_id_state state)
2661 {
2662         struct i40e_netdev_priv *np = netdev_priv(netdev);
2663         i40e_status ret = 0;
2664         struct i40e_pf *pf = np->vsi->back;
2665         struct i40e_hw *hw = &pf->hw;
2666         int blink_freq = 2;
2667         u16 temp_status;
2668 
2669         switch (state) {
2670         case ETHTOOL_ID_ACTIVE:
2671                 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) {
2672                         pf->led_status = i40e_led_get(hw);
2673                 } else {
2674                         if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE))
2675                                 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL,
2676                                                       NULL);
2677                         ret = i40e_led_get_phy(hw, &temp_status,
2678                                                &pf->phy_led_val);
2679                         pf->led_status = temp_status;
2680                 }
2681                 return blink_freq;
2682         case ETHTOOL_ID_ON:
2683                 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS))
2684                         i40e_led_set(hw, 0xf, false);
2685                 else
2686                         ret = i40e_led_set_phy(hw, true, pf->led_status, 0);
2687                 break;
2688         case ETHTOOL_ID_OFF:
2689                 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS))
2690                         i40e_led_set(hw, 0x0, false);
2691                 else
2692                         ret = i40e_led_set_phy(hw, false, pf->led_status, 0);
2693                 break;
2694         case ETHTOOL_ID_INACTIVE:
2695                 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) {
2696                         i40e_led_set(hw, pf->led_status, false);
2697                 } else {
2698                         ret = i40e_led_set_phy(hw, false, pf->led_status,
2699                                                (pf->phy_led_val |
2700                                                I40E_PHY_LED_MODE_ORIG));
2701                         if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE))
2702                                 i40e_aq_set_phy_debug(hw, 0, NULL);
2703                 }
2704                 break;
2705         default:
2706                 break;
2707         }
2708         if (ret)
2709                 return -ENOENT;
2710         else
2711                 return 0;
2712 }
2713 
2714 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt
2715  * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also
2716  * 125us (8000 interrupts per second) == ITR(62)
2717  */
2718 
2719 /**
2720  * __i40e_get_coalesce - get per-queue coalesce settings
2721  * @netdev: the netdev to check
2722  * @ec: ethtool coalesce data structure
2723  * @queue: which queue to pick
2724  *
2725  * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs
2726  * are per queue. If queue is <0 then we default to queue 0 as the
2727  * representative value.
2728  **/
2729 static int __i40e_get_coalesce(struct net_device *netdev,
2730                                struct ethtool_coalesce *ec,
2731                                int queue)
2732 {
2733         struct i40e_netdev_priv *np = netdev_priv(netdev);
2734         struct i40e_ring *rx_ring, *tx_ring;
2735         struct i40e_vsi *vsi = np->vsi;
2736 
2737         ec->tx_max_coalesced_frames_irq = vsi->work_limit;
2738         ec->rx_max_coalesced_frames_irq = vsi->work_limit;
2739 
2740         /* rx and tx usecs has per queue value. If user doesn't specify the
2741          * queue, return queue 0's value to represent.
2742          */
2743         if (queue < 0)
2744                 queue = 0;
2745         else if (queue >= vsi->num_queue_pairs)
2746                 return -EINVAL;
2747 
2748         rx_ring = vsi->rx_rings[queue];
2749         tx_ring = vsi->tx_rings[queue];
2750 
2751         if (ITR_IS_DYNAMIC(rx_ring->itr_setting))
2752                 ec->use_adaptive_rx_coalesce = 1;
2753 
2754         if (ITR_IS_DYNAMIC(tx_ring->itr_setting))
2755                 ec->use_adaptive_tx_coalesce = 1;
2756 
2757         ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
2758         ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
2759 
2760         /* we use the _usecs_high to store/set the interrupt rate limit
2761          * that the hardware supports, that almost but not quite
2762          * fits the original intent of the ethtool variable,
2763          * the rx_coalesce_usecs_high limits total interrupts
2764          * per second from both tx/rx sources.
2765          */
2766         ec->rx_coalesce_usecs_high = vsi->int_rate_limit;
2767         ec->tx_coalesce_usecs_high = vsi->int_rate_limit;
2768 
2769         return 0;
2770 }
2771 
2772 /**
2773  * i40e_get_coalesce - get a netdev's coalesce settings
2774  * @netdev: the netdev to check
2775  * @ec: ethtool coalesce data structure
2776  *
2777  * Gets the coalesce settings for a particular netdev. Note that if user has
2778  * modified per-queue settings, this only guarantees to represent queue 0. See
2779  * __i40e_get_coalesce for more details.
2780  **/
2781 static int i40e_get_coalesce(struct net_device *netdev,
2782                              struct ethtool_coalesce *ec)
2783 {
2784         return __i40e_get_coalesce(netdev, ec, -1);
2785 }
2786 
2787 /**
2788  * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue
2789  * @netdev: netdev structure
2790  * @ec: ethtool's coalesce settings
2791  * @queue: the particular queue to read
2792  *
2793  * Will read a specific queue's coalesce settings
2794  **/
2795 static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue,
2796                                        struct ethtool_coalesce *ec)
2797 {
2798         return __i40e_get_coalesce(netdev, ec, queue);
2799 }
2800 
2801 /**
2802  * i40e_set_itr_per_queue - set ITR values for specific queue
2803  * @vsi: the VSI to set values for
2804  * @ec: coalesce settings from ethtool
2805  * @queue: the queue to modify
2806  *
2807  * Change the ITR settings for a specific queue.
2808  **/
2809 static void i40e_set_itr_per_queue(struct i40e_vsi *vsi,
2810                                    struct ethtool_coalesce *ec,
2811                                    int queue)
2812 {
2813         struct i40e_ring *rx_ring = vsi->rx_rings[queue];
2814         struct i40e_ring *tx_ring = vsi->tx_rings[queue];
2815         struct i40e_pf *pf = vsi->back;
2816         struct i40e_hw *hw = &pf->hw;
2817         struct i40e_q_vector *q_vector;
2818         u16 intrl;
2819 
2820         intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit);
2821 
2822         rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs);
2823         tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs);
2824 
2825         if (ec->use_adaptive_rx_coalesce)
2826                 rx_ring->itr_setting |= I40E_ITR_DYNAMIC;
2827         else
2828                 rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;
2829 
2830         if (ec->use_adaptive_tx_coalesce)
2831                 tx_ring->itr_setting |= I40E_ITR_DYNAMIC;
2832         else
2833                 tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;
2834 
2835         q_vector = rx_ring->q_vector;
2836         q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting);
2837 
2838         q_vector = tx_ring->q_vector;
2839         q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting);
2840 
2841         /* The interrupt handler itself will take care of programming
2842          * the Tx and Rx ITR values based on the values we have entered
2843          * into the q_vector, no need to write the values now.
2844          */
2845 
2846         wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl);
2847         i40e_flush(hw);
2848 }
2849 
2850 /**
2851  * __i40e_set_coalesce - set coalesce settings for particular queue
2852  * @netdev: the netdev to change
2853  * @ec: ethtool coalesce settings
2854  * @queue: the queue to change
2855  *
2856  * Sets the coalesce settings for a particular queue.
2857  **/
2858 static int __i40e_set_coalesce(struct net_device *netdev,
2859                                struct ethtool_coalesce *ec,
2860                                int queue)
2861 {
2862         struct i40e_netdev_priv *np = netdev_priv(netdev);
2863         u16 intrl_reg, cur_rx_itr, cur_tx_itr;
2864         struct i40e_vsi *vsi = np->vsi;
2865         struct i40e_pf *pf = vsi->back;
2866         int i;
2867 
2868         if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq)
2869                 vsi->work_limit = ec->tx_max_coalesced_frames_irq;
2870 
2871         if (queue < 0) {
2872                 cur_rx_itr = vsi->rx_rings[0]->itr_setting;
2873                 cur_tx_itr = vsi->tx_rings[0]->itr_setting;
2874         } else if (queue < vsi->num_queue_pairs) {
2875                 cur_rx_itr = vsi->rx_rings[queue]->itr_setting;
2876                 cur_tx_itr = vsi->tx_rings[queue]->itr_setting;
2877         } else {
2878                 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n",
2879                            vsi->num_queue_pairs - 1);
2880                 return -EINVAL;
2881         }
2882 
2883         cur_tx_itr &= ~I40E_ITR_DYNAMIC;
2884         cur_rx_itr &= ~I40E_ITR_DYNAMIC;
2885 
2886         /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */
2887         if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) {
2888                 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n");
2889                 return -EINVAL;
2890         }
2891 
2892         if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) {
2893                 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n",
2894                            INTRL_REG_TO_USEC(I40E_MAX_INTRL));
2895                 return -EINVAL;
2896         }
2897 
2898         if (ec->rx_coalesce_usecs != cur_rx_itr &&
2899             ec->use_adaptive_rx_coalesce) {
2900                 netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n");
2901                 return -EINVAL;
2902         }
2903 
2904         if (ec->rx_coalesce_usecs > I40E_MAX_ITR) {
2905                 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
2906                 return -EINVAL;
2907         }
2908 
2909         if (ec->tx_coalesce_usecs != cur_tx_itr &&
2910             ec->use_adaptive_tx_coalesce) {
2911                 netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n");
2912                 return -EINVAL;
2913         }
2914 
2915         if (ec->tx_coalesce_usecs > I40E_MAX_ITR) {
2916                 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n");
2917                 return -EINVAL;
2918         }
2919 
2920         if (ec->use_adaptive_rx_coalesce && !cur_rx_itr)
2921                 ec->rx_coalesce_usecs = I40E_MIN_ITR;
2922 
2923         if (ec->use_adaptive_tx_coalesce && !cur_tx_itr)
2924                 ec->tx_coalesce_usecs = I40E_MIN_ITR;
2925 
2926         intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high);
2927         vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg);
2928         if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) {
2929                 netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n",
2930                            vsi->int_rate_limit);
2931         }
2932 
2933         /* rx and tx usecs has per queue value. If user doesn't specify the
2934          * queue, apply to all queues.
2935          */
2936         if (queue < 0) {
2937                 for (i = 0; i < vsi->num_queue_pairs; i++)
2938                         i40e_set_itr_per_queue(vsi, ec, i);
2939         } else {
2940                 i40e_set_itr_per_queue(vsi, ec, queue);
2941         }
2942 
2943         return 0;
2944 }
2945 
2946 /**
2947  * i40e_set_coalesce - set coalesce settings for every queue on the netdev
2948  * @netdev: the netdev to change
2949  * @ec: ethtool coalesce settings
2950  *
2951  * This will set each queue to the same coalesce settings.
2952  **/
2953 static int i40e_set_coalesce(struct net_device *netdev,
2954                              struct ethtool_coalesce *ec)
2955 {
2956         return __i40e_set_coalesce(netdev, ec, -1);
2957 }
2958 
2959 /**
2960  * i40e_set_per_queue_coalesce - set specific queue's coalesce settings
2961  * @netdev: the netdev to change
2962  * @ec: ethtool's coalesce settings
2963  * @queue: the queue to change
2964  *
2965  * Sets the specified queue's coalesce settings.
2966  **/
2967 static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue,
2968                                        struct ethtool_coalesce *ec)
2969 {
2970         return __i40e_set_coalesce(netdev, ec, queue);
2971 }
2972 
2973 /**
2974  * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type
2975  * @pf: pointer to the physical function struct
2976  * @cmd: ethtool rxnfc command
2977  *
2978  * Returns Success if the flow is supported, else Invalid Input.
2979  **/
2980 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd)
2981 {
2982         struct i40e_hw *hw = &pf->hw;
2983         u8 flow_pctype = 0;
2984         u64 i_set = 0;
2985 
2986         cmd->data = 0;
2987 
2988         switch (cmd->flow_type) {
2989         case TCP_V4_FLOW:
2990                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
2991                 break;
2992         case UDP_V4_FLOW:
2993                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
2994                 break;
2995         case TCP_V6_FLOW:
2996                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
2997                 break;
2998         case UDP_V6_FLOW:
2999                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
3000                 break;
3001         case SCTP_V4_FLOW:
3002         case AH_ESP_V4_FLOW:
3003         case AH_V4_FLOW:
3004         case ESP_V4_FLOW:
3005         case IPV4_FLOW:
3006         case SCTP_V6_FLOW:
3007         case AH_ESP_V6_FLOW:
3008         case AH_V6_FLOW:
3009         case ESP_V6_FLOW:
3010         case IPV6_FLOW:
3011                 /* Default is src/dest for IP, no matter the L4 hashing */
3012                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
3013                 break;
3014         default:
3015                 return -EINVAL;
3016         }
3017 
3018         /* Read flow based hash input set register */
3019         if (flow_pctype) {
3020                 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0,
3021                                               flow_pctype)) |
3022                         ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1,
3023                                                flow_pctype)) << 32);
3024         }
3025 
3026         /* Process bits of hash input set */
3027         if (i_set) {
3028                 if (i_set & I40E_L4_SRC_MASK)
3029                         cmd->data |= RXH_L4_B_0_1;
3030                 if (i_set & I40E_L4_DST_MASK)
3031                         cmd->data |= RXH_L4_B_2_3;
3032 
3033                 if (cmd->flow_type == TCP_V4_FLOW ||
3034                     cmd->flow_type == UDP_V4_FLOW) {
3035                         if (i_set & I40E_L3_SRC_MASK)
3036                                 cmd->data |= RXH_IP_SRC;
3037                         if (i_set & I40E_L3_DST_MASK)
3038                                 cmd->data |= RXH_IP_DST;
3039                 } else if (cmd->flow_type == TCP_V6_FLOW ||
3040                           cmd->flow_type == UDP_V6_FLOW) {
3041                         if (i_set & I40E_L3_V6_SRC_MASK)
3042                                 cmd->data |= RXH_IP_SRC;
3043                         if (i_set & I40E_L3_V6_DST_MASK)
3044                                 cmd->data |= RXH_IP_DST;
3045                 }
3046         }
3047 
3048         return 0;
3049 }
3050 
3051 /**
3052  * i40e_check_mask - Check whether a mask field is set
3053  * @mask: the full mask value
3054  * @field: mask of the field to check
3055  *
3056  * If the given mask is fully set, return positive value. If the mask for the
3057  * field is fully unset, return zero. Otherwise return a negative error code.
3058  **/
3059 static int i40e_check_mask(u64 mask, u64 field)
3060 {
3061         u64 value = mask & field;
3062 
3063         if (value == field)
3064                 return 1;
3065         else if (!value)
3066                 return 0;
3067         else
3068                 return -1;
3069 }
3070 
3071 /**
3072  * i40e_parse_rx_flow_user_data - Deconstruct user-defined data
3073  * @fsp: pointer to rx flow specification
3074  * @data: pointer to userdef data structure for storage
3075  *
3076  * Read the user-defined data and deconstruct the value into a structure. No
3077  * other code should read the user-defined data, so as to ensure that every
3078  * place consistently reads the value correctly.
3079  *
3080  * The user-defined field is a 64bit Big Endian format value, which we
3081  * deconstruct by reading bits or bit fields from it. Single bit flags shall
3082  * be defined starting from the highest bits, while small bit field values
3083  * shall be defined starting from the lowest bits.
3084  *
3085  * Returns 0 if the data is valid, and non-zero if the userdef data is invalid
3086  * and the filter should be rejected. The data structure will always be
3087  * modified even if FLOW_EXT is not set.
3088  *
3089  **/
3090 static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
3091                                         struct i40e_rx_flow_userdef *data)
3092 {
3093         u64 value, mask;
3094         int valid;
3095 
3096         /* Zero memory first so it's always consistent. */
3097         memset(data, 0, sizeof(*data));
3098 
3099         if (!(fsp->flow_type & FLOW_EXT))
3100                 return 0;
3101 
3102         value = be64_to_cpu(*((__be64 *)fsp->h_ext.data));
3103         mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data));
3104 
3105 #define I40E_USERDEF_FLEX_WORD          GENMASK_ULL(15, 0)
3106 #define I40E_USERDEF_FLEX_OFFSET        GENMASK_ULL(31, 16)
3107 #define I40E_USERDEF_FLEX_FILTER        GENMASK_ULL(31, 0)
3108 
3109         valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER);
3110         if (valid < 0) {
3111                 return -EINVAL;
3112         } else if (valid) {
3113                 data->flex_word = value & I40E_USERDEF_FLEX_WORD;
3114                 data->flex_offset =
3115                         (value & I40E_USERDEF_FLEX_OFFSET) >> 16;
3116                 data->flex_filter = true;
3117         }
3118 
3119         return 0;
3120 }
3121 
3122 /**
3123  * i40e_fill_rx_flow_user_data - Fill in user-defined data field
3124  * @fsp: pointer to rx_flow specification
3125  * @data: pointer to return userdef data
3126  *
3127  * Reads the userdef data structure and properly fills in the user defined
3128  * fields of the rx_flow_spec.
3129  **/
3130 static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
3131                                         struct i40e_rx_flow_userdef *data)
3132 {
3133         u64 value = 0, mask = 0;
3134 
3135         if (data->flex_filter) {
3136                 value |= data->flex_word;
3137                 value |= (u64)data->flex_offset << 16;
3138                 mask |= I40E_USERDEF_FLEX_FILTER;
3139         }
3140 
3141         if (value || mask)
3142                 fsp->flow_type |= FLOW_EXT;
3143 
3144         *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value);
3145         *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask);
3146 }
3147 
3148 /**
3149  * i40e_get_ethtool_fdir_all - Populates the rule count of a command
3150  * @pf: Pointer to the physical function struct
3151  * @cmd: The command to get or set Rx flow classification rules
3152  * @rule_locs: Array of used rule locations
3153  *
3154  * This function populates both the total and actual rule count of
3155  * the ethtool flow classification command
3156  *
3157  * Returns 0 on success or -EMSGSIZE if entry not found
3158  **/
3159 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf,
3160                                      struct ethtool_rxnfc *cmd,
3161                                      u32 *rule_locs)
3162 {
3163         struct i40e_fdir_filter *rule;
3164         struct hlist_node *node2;
3165         int cnt = 0;
3166 
3167         /* report total rule count */
3168         cmd->data = i40e_get_fd_cnt_all(pf);
3169 
3170         hlist_for_each_entry_safe(rule, node2,
3171                                   &pf->fdir_filter_list, fdir_node) {
3172                 if (cnt == cmd->rule_cnt)
3173                         return -EMSGSIZE;
3174 
3175                 rule_locs[cnt] = rule->fd_id;
3176                 cnt++;
3177         }
3178 
3179         cmd->rule_cnt = cnt;
3180 
3181         return 0;
3182 }
3183 
3184 /**
3185  * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow
3186  * @pf: Pointer to the physical function struct
3187  * @cmd: The command to get or set Rx flow classification rules
3188  *
3189  * This function looks up a filter based on the Rx flow classification
3190  * command and fills the flow spec info for it if found
3191  *
3192  * Returns 0 on success or -EINVAL if filter not found
3193  **/
3194 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf,
3195                                        struct ethtool_rxnfc *cmd)
3196 {
3197         struct ethtool_rx_flow_spec *fsp =
3198                         (struct ethtool_rx_flow_spec *)&cmd->fs;
3199         struct i40e_rx_flow_userdef userdef = {0};
3200         struct i40e_fdir_filter *rule = NULL;
3201         struct hlist_node *node2;
3202         u64 input_set;
3203         u16 index;
3204 
3205         hlist_for_each_entry_safe(rule, node2,
3206                                   &pf->fdir_filter_list, fdir_node) {
3207                 if (fsp->location <= rule->fd_id)
3208                         break;
3209         }
3210 
3211         if (!rule || fsp->location != rule->fd_id)
3212                 return -EINVAL;
3213 
3214         fsp->flow_type = rule->flow_type;
3215         if (fsp->flow_type == IP_USER_FLOW) {
3216                 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
3217                 fsp->h_u.usr_ip4_spec.proto = 0;
3218                 fsp->m_u.usr_ip4_spec.proto = 0;
3219         }
3220 
3221         /* Reverse the src and dest notion, since the HW views them from
3222          * Tx perspective where as the user expects it from Rx filter view.
3223          */
3224         fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port;
3225         fsp->h_u.tcp_ip4_spec.pdst = rule->src_port;
3226         fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip;
3227         fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip;
3228 
3229         switch (rule->flow_type) {
3230         case SCTP_V4_FLOW:
3231                 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP;
3232                 break;
3233         case TCP_V4_FLOW:
3234                 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
3235                 break;
3236         case UDP_V4_FLOW:
3237                 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
3238                 break;
3239         case IP_USER_FLOW:
3240                 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;
3241                 break;
3242         default:
3243                 /* If we have stored a filter with a flow type not listed here
3244                  * it is almost certainly a driver bug. WARN(), and then
3245                  * assign the input_set as if all fields are enabled to avoid
3246                  * reading unassigned memory.
3247                  */
3248                 WARN(1, "Missing input set index for flow_type %d\n",
3249                      rule->flow_type);
3250                 input_set = 0xFFFFFFFFFFFFFFFFULL;
3251                 goto no_input_set;
3252         }
3253 
3254         input_set = i40e_read_fd_input_set(pf, index);
3255 
3256 no_input_set:
3257         if (input_set & I40E_L3_SRC_MASK)
3258                 fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF);
3259 
3260         if (input_set & I40E_L3_DST_MASK)
3261                 fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF);
3262 
3263         if (input_set & I40E_L4_SRC_MASK)
3264                 fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF);
3265 
3266         if (input_set & I40E_L4_DST_MASK)
3267                 fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF);
3268 
3269         if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET)
3270                 fsp->ring_cookie = RX_CLS_FLOW_DISC;
3271         else
3272                 fsp->ring_cookie = rule->q_index;
3273 
3274         if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) {
3275                 struct i40e_vsi *vsi;
3276 
3277                 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi);
3278                 if (vsi && vsi->type == I40E_VSI_SRIOV) {
3279                         /* VFs are zero-indexed by the driver, but ethtool
3280                          * expects them to be one-indexed, so add one here
3281                          */
3282                         u64 ring_vf = vsi->vf_id + 1;
3283 
3284                         ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF;
3285                         fsp->ring_cookie |= ring_vf;
3286                 }
3287         }
3288 
3289         if (rule->flex_filter) {
3290                 userdef.flex_filter = true;
3291                 userdef.flex_word = be16_to_cpu(rule->flex_word);
3292                 userdef.flex_offset = rule->flex_offset;
3293         }
3294 
3295         i40e_fill_rx_flow_user_data(fsp, &userdef);
3296 
3297         return 0;
3298 }
3299 
3300 /**
3301  * i40e_get_rxnfc - command to get RX flow classification rules
3302  * @netdev: network interface device structure
3303  * @cmd: ethtool rxnfc command
3304  * @rule_locs: pointer to store rule data
3305  *
3306  * Returns Success if the command is supported.
3307  **/
3308 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
3309                           u32 *rule_locs)
3310 {
3311         struct i40e_netdev_priv *np = netdev_priv(netdev);
3312         struct i40e_vsi *vsi = np->vsi;
3313         struct i40e_pf *pf = vsi->back;
3314         int ret = -EOPNOTSUPP;
3315 
3316         switch (cmd->cmd) {
3317         case ETHTOOL_GRXRINGS:
3318                 cmd->data = vsi->rss_size;
3319                 ret = 0;
3320                 break;
3321         case ETHTOOL_GRXFH:
3322                 ret = i40e_get_rss_hash_opts(pf, cmd);
3323                 break;
3324         case ETHTOOL_GRXCLSRLCNT:
3325                 cmd->rule_cnt = pf->fdir_pf_active_filters;
3326                 /* report total rule count */
3327                 cmd->data = i40e_get_fd_cnt_all(pf);
3328                 ret = 0;
3329                 break;
3330         case ETHTOOL_GRXCLSRULE:
3331                 ret = i40e_get_ethtool_fdir_entry(pf, cmd);
3332                 break;
3333         case ETHTOOL_GRXCLSRLALL:
3334                 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs);
3335                 break;
3336         default:
3337                 break;
3338         }
3339 
3340         return ret;
3341 }
3342 
3343 /**
3344  * i40e_get_rss_hash_bits - Read RSS Hash bits from register
3345  * @nfc: pointer to user request
3346  * @i_setc: bits currently set
3347  *
3348  * Returns value of bits to be set per user request
3349  **/
3350 static u64 i40e_get_rss_hash_bits(struct ethtool_rxnfc *nfc, u64 i_setc)
3351 {
3352         u64 i_set = i_setc;
3353         u64 src_l3 = 0, dst_l3 = 0;
3354 
3355         if (nfc->data & RXH_L4_B_0_1)
3356                 i_set |= I40E_L4_SRC_MASK;
3357         else
3358                 i_set &= ~I40E_L4_SRC_MASK;
3359         if (nfc->data & RXH_L4_B_2_3)
3360                 i_set |= I40E_L4_DST_MASK;
3361         else
3362                 i_set &= ~I40E_L4_DST_MASK;
3363 
3364         if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) {
3365                 src_l3 = I40E_L3_V6_SRC_MASK;
3366                 dst_l3 = I40E_L3_V6_DST_MASK;
3367         } else if (nfc->flow_type == TCP_V4_FLOW ||
3368                   nfc->flow_type == UDP_V4_FLOW) {
3369                 src_l3 = I40E_L3_SRC_MASK;
3370                 dst_l3 = I40E_L3_DST_MASK;
3371         } else {
3372                 /* Any other flow type are not supported here */
3373                 return i_set;
3374         }
3375 
3376         if (nfc->data & RXH_IP_SRC)
3377                 i_set |= src_l3;
3378         else
3379                 i_set &= ~src_l3;
3380         if (nfc->data & RXH_IP_DST)
3381                 i_set |= dst_l3;
3382         else
3383                 i_set &= ~dst_l3;
3384 
3385         return i_set;
3386 }
3387 
3388 /**
3389  * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash
3390  * @pf: pointer to the physical function struct
3391  * @nfc: ethtool rxnfc command
3392  *
3393  * Returns Success if the flow input set is supported.
3394  **/
3395 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
3396 {
3397         struct i40e_hw *hw = &pf->hw;
3398         u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) |
3399                    ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32);
3400         u8 flow_pctype = 0;
3401         u64 i_set, i_setc;
3402 
3403         if (pf->flags & I40E_FLAG_MFP_ENABLED) {
3404                 dev_err(&pf->pdev->dev,
3405                         "Change of RSS hash input set is not supported when MFP mode is enabled\n");
3406                 return -EOPNOTSUPP;
3407         }
3408 
3409         /* RSS does not support anything other than hashing
3410          * to queues on src and dst IPs and ports
3411          */
3412         if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
3413                           RXH_L4_B_0_1 | RXH_L4_B_2_3))
3414                 return -EINVAL;
3415 
3416         switch (nfc->flow_type) {
3417         case TCP_V4_FLOW:
3418                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
3419                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3420                         hena |=
3421                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK);
3422                 break;
3423         case TCP_V6_FLOW:
3424                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
3425                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3426                         hena |=
3427                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK);
3428                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3429                         hena |=
3430                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK);
3431                 break;
3432         case UDP_V4_FLOW:
3433                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
3434                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3435                         hena |=
3436                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) |
3437                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP);
3438 
3439                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
3440                 break;
3441         case UDP_V6_FLOW:
3442                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
3443                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3444                         hena |=
3445                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) |
3446                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP);
3447 
3448                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
3449                 break;
3450         case AH_ESP_V4_FLOW:
3451         case AH_V4_FLOW:
3452         case ESP_V4_FLOW:
3453         case SCTP_V4_FLOW:
3454                 if ((nfc->data & RXH_L4_B_0_1) ||
3455                     (nfc->data & RXH_L4_B_2_3))
3456                         return -EINVAL;
3457                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);
3458                 break;
3459         case AH_ESP_V6_FLOW:
3460         case AH_V6_FLOW:
3461         case ESP_V6_FLOW:
3462         case SCTP_V6_FLOW:
3463                 if ((nfc->data & RXH_L4_B_0_1) ||
3464                     (nfc->data & RXH_L4_B_2_3))
3465                         return -EINVAL;
3466                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);
3467                 break;
3468         case IPV4_FLOW:
3469                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) |
3470                         BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
3471                 break;
3472         case IPV6_FLOW:
3473                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) |
3474                         BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
3475                 break;
3476         default:
3477                 return -EINVAL;
3478         }
3479 
3480         if (flow_pctype) {
3481                 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0,
3482                                                flow_pctype)) |
3483                         ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1,
3484                                                flow_pctype)) << 32);
3485                 i_set = i40e_get_rss_hash_bits(nfc, i_setc);
3486                 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_pctype),
3487                                   (u32)i_set);
3488                 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_pctype),
3489                                   (u32)(i_set >> 32));
3490                 hena |= BIT_ULL(flow_pctype);
3491         }
3492 
3493         i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena);
3494         i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));
3495         i40e_flush(hw);
3496 
3497         return 0;
3498 }
3499 
3500 /**
3501  * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry
3502  * @vsi: Pointer to the targeted VSI
3503  * @input: The filter to update or NULL to indicate deletion
3504  * @sw_idx: Software index to the filter
3505  * @cmd: The command to get or set Rx flow classification rules
3506  *
3507  * This function updates (or deletes) a Flow Director entry from
3508  * the hlist of the corresponding PF
3509  *
3510  * Returns 0 on success
3511  **/
3512 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi,
3513                                           struct i40e_fdir_filter *input,
3514                                           u16 sw_idx,
3515                                           struct ethtool_rxnfc *cmd)
3516 {
3517         struct i40e_fdir_filter *rule, *parent;
3518         struct i40e_pf *pf = vsi->back;
3519         struct hlist_node *node2;
3520         int err = -EINVAL;
3521 
3522         parent = NULL;
3523         rule = NULL;
3524 
3525         hlist_for_each_entry_safe(rule, node2,
3526                                   &pf->fdir_filter_list, fdir_node) {
3527                 /* hash found, or no matching entry */
3528                 if (rule->fd_id >= sw_idx)
3529                         break;
3530                 parent = rule;
3531         }
3532 
3533         /* if there is an old rule occupying our place remove it */
3534         if (rule && (rule->fd_id == sw_idx)) {
3535                 /* Remove this rule, since we're either deleting it, or
3536                  * replacing it.
3537                  */
3538                 err = i40e_add_del_fdir(vsi, rule, false);
3539                 hlist_del(&rule->fdir_node);
3540                 kfree(rule);
3541                 pf->fdir_pf_active_filters--;
3542         }
3543 
3544         /* If we weren't given an input, this is a delete, so just return the
3545          * error code indicating if there was an entry at the requested slot
3546          */
3547         if (!input)
3548                 return err;
3549 
3550         /* Otherwise, install the new rule as requested */
3551         INIT_HLIST_NODE(&input->fdir_node);
3552 
3553         /* add filter to the list */
3554         if (parent)
3555                 hlist_add_behind(&input->fdir_node, &parent->fdir_node);
3556         else
3557                 hlist_add_head(&input->fdir_node,
3558                                &pf->fdir_filter_list);
3559 
3560         /* update counts */
3561         pf->fdir_pf_active_filters++;
3562 
3563         return 0;
3564 }
3565 
3566 /**
3567  * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table
3568  * @pf: pointer to PF structure
3569  *
3570  * This function searches the list of filters and determines which FLX_PIT
3571  * entries are still required. It will prune any entries which are no longer
3572  * in use after the deletion.
3573  **/
3574 static void i40e_prune_flex_pit_list(struct i40e_pf *pf)
3575 {
3576         struct i40e_flex_pit *entry, *tmp;
3577         struct i40e_fdir_filter *rule;
3578 
3579         /* First, we'll check the l3 table */
3580         list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) {
3581                 bool found = false;
3582 
3583                 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) {
3584                         if (rule->flow_type != IP_USER_FLOW)
3585                                 continue;
3586                         if (rule->flex_filter &&
3587                             rule->flex_offset == entry->src_offset) {
3588                                 found = true;
3589                                 break;
3590                         }
3591                 }
3592 
3593                 /* If we didn't find the filter, then we can prune this entry
3594                  * from the list.
3595                  */
3596                 if (!found) {
3597                         list_del(&entry->list);
3598                         kfree(entry);
3599                 }
3600         }
3601 
3602         /* Followed by the L4 table */
3603         list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) {
3604                 bool found = false;
3605 
3606                 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) {
3607                         /* Skip this filter if it's L3, since we already
3608                          * checked those in the above loop
3609                          */
3610                         if (rule->flow_type == IP_USER_FLOW)
3611                                 continue;
3612                         if (rule->flex_filter &&
3613                             rule->flex_offset == entry->src_offset) {
3614                                 found = true;
3615                                 break;
3616                         }
3617                 }
3618 
3619                 /* If we didn't find the filter, then we can prune this entry
3620                  * from the list.
3621                  */
3622                 if (!found) {
3623                         list_del(&entry->list);
3624                         kfree(entry);
3625                 }
3626         }
3627 }
3628 
3629 /**
3630  * i40e_del_fdir_entry - Deletes a Flow Director filter entry
3631  * @vsi: Pointer to the targeted VSI
3632  * @cmd: The command to get or set Rx flow classification rules
3633  *
3634  * The function removes a Flow Director filter entry from the
3635  * hlist of the corresponding PF
3636  *
3637  * Returns 0 on success
3638  */
3639 static int i40e_del_fdir_entry(struct i40e_vsi *vsi,
3640                                struct ethtool_rxnfc *cmd)
3641 {
3642         struct ethtool_rx_flow_spec *fsp =
3643                 (struct ethtool_rx_flow_spec *)&cmd->fs;
3644         struct i40e_pf *pf = vsi->back;
3645         int ret = 0;
3646 
3647         if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
3648             test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
3649                 return -EBUSY;
3650 
3651         if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))
3652                 return -EBUSY;
3653 
3654         ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd);
3655 
3656         i40e_prune_flex_pit_list(pf);
3657 
3658         i40e_fdir_check_and_reenable(pf);
3659         return ret;
3660 }
3661 
3662 /**
3663  * i40e_unused_pit_index - Find an unused PIT index for given list
3664  * @pf: the PF data structure
3665  *
3666  * Find the first unused flexible PIT index entry. We search both the L3 and
3667  * L4 flexible PIT lists so that the returned index is unique and unused by
3668  * either currently programmed L3 or L4 filters. We use a bit field as storage
3669  * to track which indexes are already used.
3670  **/
3671 static u8 i40e_unused_pit_index(struct i40e_pf *pf)
3672 {
3673         unsigned long available_index = 0xFF;
3674         struct i40e_flex_pit *entry;
3675 
3676         /* We need to make sure that the new index isn't in use by either L3
3677          * or L4 filters so that IP_USER_FLOW filters can program both L3 and
3678          * L4 to use the same index.
3679          */
3680 
3681         list_for_each_entry(entry, &pf->l4_flex_pit_list, list)
3682                 clear_bit(entry->pit_index, &available_index);
3683 
3684         list_for_each_entry(entry, &pf->l3_flex_pit_list, list)
3685                 clear_bit(entry->pit_index, &available_index);
3686 
3687         return find_first_bit(&available_index, 8);
3688 }
3689 
3690 /**
3691  * i40e_find_flex_offset - Find an existing flex src_offset
3692  * @flex_pit_list: L3 or L4 flex PIT list
3693  * @src_offset: new src_offset to find
3694  *
3695  * Searches the flex_pit_list for an existing offset. If no offset is
3696  * currently programmed, then this will return an ERR_PTR if there is no space
3697  * to add a new offset, otherwise it returns NULL.
3698  **/
3699 static
3700 struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list,
3701                                             u16 src_offset)
3702 {
3703         struct i40e_flex_pit *entry;
3704         int size = 0;
3705 
3706         /* Search for the src_offset first. If we find a matching entry
3707          * already programmed, we can simply re-use it.
3708          */
3709         list_for_each_entry(entry, flex_pit_list, list) {
3710                 size++;
3711                 if (entry->src_offset == src_offset)
3712                         return entry;
3713         }
3714 
3715         /* If we haven't found an entry yet, then the provided src offset has
3716          * not yet been programmed. We will program the src offset later on,
3717          * but we need to indicate whether there is enough space to do so
3718          * here. We'll make use of ERR_PTR for this purpose.
3719          */
3720         if (size >= I40E_FLEX_PIT_TABLE_SIZE)
3721                 return ERR_PTR(-ENOSPC);
3722 
3723         return NULL;
3724 }
3725 
3726 /**
3727  * i40e_add_flex_offset - Add src_offset to flex PIT table list
3728  * @flex_pit_list: L3 or L4 flex PIT list
3729  * @src_offset: new src_offset to add
3730  * @pit_index: the PIT index to program
3731  *
3732  * This function programs the new src_offset to the list. It is expected that
3733  * i40e_find_flex_offset has already been tried and returned NULL, indicating
3734  * that this offset is not programmed, and that the list has enough space to
3735  * store another offset.
3736  *
3737  * Returns 0 on success, and negative value on error.
3738  **/
3739 static int i40e_add_flex_offset(struct list_head *flex_pit_list,
3740                                 u16 src_offset,
3741                                 u8 pit_index)
3742 {
3743         struct i40e_flex_pit *new_pit, *entry;
3744 
3745         new_pit = kzalloc(sizeof(*entry), GFP_KERNEL);
3746         if (!new_pit)
3747                 return -ENOMEM;
3748 
3749         new_pit->src_offset = src_offset;
3750         new_pit->pit_index = pit_index;
3751 
3752         /* We need to insert this item such that the list is sorted by
3753          * src_offset in ascending order.
3754          */
3755         list_for_each_entry(entry, flex_pit_list, list) {
3756                 if (new_pit->src_offset < entry->src_offset) {
3757                         list_add_tail(&new_pit->list, &entry->list);
3758                         return 0;
3759                 }
3760 
3761                 /* If we found an entry with our offset already programmed we
3762                  * can simply return here, after freeing the memory. However,
3763                  * if the pit_index does not match we need to report an error.
3764                  */
3765                 if (new_pit->src_offset == entry->src_offset) {
3766                         int err = 0;
3767 
3768                         /* If the PIT index is not the same we can't re-use
3769                          * the entry, so we must report an error.
3770                          */
3771                         if (new_pit->pit_index != entry->pit_index)
3772                                 err = -EINVAL;
3773 
3774                         kfree(new_pit);
3775                         return err;
3776                 }
3777         }
3778 
3779         /* If we reached here, then we haven't yet added the item. This means
3780          * that we should add the item at the end of the list.
3781          */
3782         list_add_tail(&new_pit->list, flex_pit_list);
3783         return 0;
3784 }
3785 
3786 /**
3787  * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table
3788  * @pf: Pointer to the PF structure
3789  * @flex_pit_list: list of flexible src offsets in use
3790  * @flex_pit_start: index to first entry for this section of the table
3791  *
3792  * In order to handle flexible data, the hardware uses a table of values
3793  * called the FLX_PIT table. This table is used to indicate which sections of
3794  * the input correspond to what PIT index values. Unfortunately, hardware is
3795  * very restrictive about programming this table. Entries must be ordered by
3796  * src_offset in ascending order, without duplicates. Additionally, unused
3797  * entries must be set to the unused index value, and must have valid size and
3798  * length according to the src_offset ordering.
3799  *
3800  * This function will reprogram the FLX_PIT register from a book-keeping
3801  * structure that we guarantee is already ordered correctly, and has no more
3802  * than 3 entries.
3803  *
3804  * To make things easier, we only support flexible values of one word length,
3805  * rather than allowing variable length flexible values.
3806  **/
3807 static void __i40e_reprogram_flex_pit(struct i40e_pf *pf,
3808                                       struct list_head *flex_pit_list,
3809                                       int flex_pit_start)
3810 {
3811         struct i40e_flex_pit *entry = NULL;
3812         u16 last_offset = 0;
3813         int i = 0, j = 0;
3814 
3815         /* First, loop over the list of flex PIT entries, and reprogram the
3816          * registers.
3817          */
3818         list_for_each_entry(entry, flex_pit_list, list) {
3819                 /* We have to be careful when programming values for the
3820                  * largest SRC_OFFSET value. It is possible that adding
3821                  * additional empty values at the end would overflow the space
3822                  * for the SRC_OFFSET in the FLX_PIT register. To avoid this,
3823                  * we check here and add the empty values prior to adding the
3824                  * largest value.
3825                  *
3826                  * To determine this, we will use a loop from i+1 to 3, which
3827                  * will determine whether the unused entries would have valid
3828                  * SRC_OFFSET. Note that there cannot be extra entries past
3829                  * this value, because the only valid values would have been
3830                  * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not
3831                  * have been added to the list in the first place.
3832                  */
3833                 for (j = i + 1; j < 3; j++) {
3834                         u16 offset = entry->src_offset + j;
3835                         int index = flex_pit_start + i;
3836                         u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED,
3837                                                        1,
3838                                                        offset - 3);
3839 
3840                         if (offset > I40E_MAX_FLEX_SRC_OFFSET) {
3841                                 i40e_write_rx_ctl(&pf->hw,
3842                                                   I40E_PRTQF_FLX_PIT(index),
3843                                                   value);
3844                                 i++;
3845                         }
3846                 }
3847 
3848                 /* Now, we can program the actual value into the table */
3849                 i40e_write_rx_ctl(&pf->hw,
3850                                   I40E_PRTQF_FLX_PIT(flex_pit_start + i),
3851                                   I40E_FLEX_PREP_VAL(entry->pit_index + 50,
3852                                                      1,
3853                                                      entry->src_offset));
3854                 i++;
3855         }
3856 
3857         /* In order to program the last entries in the table, we need to
3858          * determine the valid offset. If the list is empty, we'll just start
3859          * with 0. Otherwise, we'll start with the last item offset and add 1.
3860          * This ensures that all entries have valid sizes. If we don't do this
3861          * correctly, the hardware will disable flexible field parsing.
3862          */
3863         if (!list_empty(flex_pit_list))
3864                 last_offset = list_prev_entry(entry, list)->src_offset + 1;
3865 
3866         for (; i < 3; i++, last_offset++) {
3867                 i40e_write_rx_ctl(&pf->hw,
3868                                   I40E_PRTQF_FLX_PIT(flex_pit_start + i),
3869                                   I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED,
3870                                                      1,
3871                                                      last_offset));
3872         }
3873 }
3874 
3875 /**
3876  * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change
3877  * @pf: pointer to the PF structure
3878  *
3879  * This function reprograms both the L3 and L4 FLX_PIT tables. See the
3880  * internal helper function for implementation details.
3881  **/
3882 static void i40e_reprogram_flex_pit(struct i40e_pf *pf)
3883 {
3884         __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list,
3885                                   I40E_FLEX_PIT_IDX_START_L3);
3886 
3887         __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list,
3888                                   I40E_FLEX_PIT_IDX_START_L4);
3889 
3890         /* We also need to program the L3 and L4 GLQF ORT register */
3891         i40e_write_rx_ctl(&pf->hw,
3892                           I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX),
3893                           I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3,
3894                                             3, 1));
3895 
3896         i40e_write_rx_ctl(&pf->hw,
3897                           I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX),
3898                           I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4,
3899                                             3, 1));
3900 }
3901 
3902 /**
3903  * i40e_flow_str - Converts a flow_type into a human readable string
3904  * @fsp: the flow specification
3905  *
3906  * Currently only flow types we support are included here, and the string
3907  * value attempts to match what ethtool would use to configure this flow type.
3908  **/
3909 static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp)
3910 {
3911         switch (fsp->flow_type & ~FLOW_EXT) {
3912         case TCP_V4_FLOW:
3913                 return "tcp4";
3914         case UDP_V4_FLOW:
3915                 return "udp4";
3916         case SCTP_V4_FLOW:
3917                 return "sctp4";
3918         case IP_USER_FLOW:
3919                 return "ip4";
3920         default:
3921                 return "unknown";
3922         }
3923 }
3924 
3925 /**
3926  * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index
3927  * @pit_index: PIT index to convert
3928  *
3929  * Returns the mask for a given PIT index. Will return 0 if the pit_index is
3930  * of range.
3931  **/
3932 static u64 i40e_pit_index_to_mask(int pit_index)
3933 {
3934         switch (pit_index) {
3935         case 0:
3936                 return I40E_FLEX_50_MASK;
3937         case 1:
3938                 return I40E_FLEX_51_MASK;
3939         case 2:
3940                 return I40E_FLEX_52_MASK;
3941         case 3:
3942                 return I40E_FLEX_53_MASK;
3943         case 4:
3944                 return I40E_FLEX_54_MASK;
3945         case 5:
3946                 return I40E_FLEX_55_MASK;
3947         case 6:
3948                 return I40E_FLEX_56_MASK;
3949         case 7:
3950                 return I40E_FLEX_57_MASK;
3951         default:
3952                 return 0;
3953         }
3954 }
3955 
3956 /**
3957  * i40e_print_input_set - Show changes between two input sets
3958  * @vsi: the vsi being configured
3959  * @old: the old input set
3960  * @new: the new input set
3961  *
3962  * Print the difference between old and new input sets by showing which series
3963  * of words are toggled on or off. Only displays the bits we actually support
3964  * changing.
3965  **/
3966 static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new)
3967 {
3968         struct i40e_pf *pf = vsi->back;
3969         bool old_value, new_value;
3970         int i;
3971 
3972         old_value = !!(old & I40E_L3_SRC_MASK);
3973         new_value = !!(new & I40E_L3_SRC_MASK);
3974         if (old_value != new_value)
3975                 netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n",
3976                            old_value ? "ON" : "OFF",
3977                            new_value ? "ON" : "OFF");
3978 
3979         old_value = !!(old & I40E_L3_DST_MASK);
3980         new_value = !!(new & I40E_L3_DST_MASK);
3981         if (old_value != new_value)
3982                 netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n",
3983                            old_value ? "ON" : "OFF",
3984                            new_value ? "ON" : "OFF");
3985 
3986         old_value = !!(old & I40E_L4_SRC_MASK);
3987         new_value = !!(new & I40E_L4_SRC_MASK);
3988         if (old_value != new_value)
3989                 netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n",
3990                            old_value ? "ON" : "OFF",
3991                            new_value ? "ON" : "OFF");
3992 
3993         old_value = !!(old & I40E_L4_DST_MASK);
3994         new_value = !!(new & I40E_L4_DST_MASK);
3995         if (old_value != new_value)
3996                 netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n",
3997                            old_value ? "ON" : "OFF",
3998                            new_value ? "ON" : "OFF");
3999 
4000         old_value = !!(old & I40E_VERIFY_TAG_MASK);
4001         new_value = !!(new & I40E_VERIFY_TAG_MASK);
4002         if (old_value != new_value)
4003                 netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n",
4004                            old_value ? "ON" : "OFF",
4005                            new_value ? "ON" : "OFF");
4006 
4007         /* Show change of flexible filter entries */
4008         for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) {
4009                 u64 flex_mask = i40e_pit_index_to_mask(i);
4010 
4011                 old_value = !!(old & flex_mask);
4012                 new_value = !!(new & flex_mask);
4013                 if (old_value != new_value)
4014                         netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n",
4015                                    i,
4016                                    old_value ? "ON" : "OFF",
4017                                    new_value ? "ON" : "OFF");
4018         }
4019 
4020         netif_info(pf, drv, vsi->netdev, "  Current input set: %0llx\n",
4021                    old);
4022         netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n",
4023                    new);
4024 }
4025 
4026 /**
4027  * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid
4028  * @vsi: pointer to the targeted VSI
4029  * @fsp: pointer to Rx flow specification
4030  * @userdef: userdefined data from flow specification
4031  *
4032  * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support
4033  * for partial matches exists with a few limitations. First, hardware only
4034  * supports masking by word boundary (2 bytes) and not per individual bit.
4035  * Second, hardware is limited to using one mask for a flow type and cannot
4036  * use a separate mask for each filter.
4037  *
4038  * To support these limitations, if we already have a configured filter for
4039  * the specified type, this function enforces that new filters of the type
4040  * match the configured input set. Otherwise, if we do not have a filter of
4041  * the specified type, we allow the input set to be updated to match the
4042  * desired filter.
4043  *
4044  * To help ensure that administrators understand why filters weren't displayed
4045  * as supported, we print a diagnostic message displaying how the input set
4046  * would change and warning to delete the preexisting filters if required.
4047  *
4048  * Returns 0 on successful input set match, and a negative return code on
4049  * failure.
4050  **/
4051 static int i40e_check_fdir_input_set(struct i40e_vsi *vsi,
4052                                      struct ethtool_rx_flow_spec *fsp,
4053                                      struct i40e_rx_flow_userdef *userdef)
4054 {
4055         struct i40e_pf *pf = vsi->back;
4056         struct ethtool_tcpip4_spec *tcp_ip4_spec;
4057         struct ethtool_usrip4_spec *usr_ip4_spec;
4058         u64 current_mask, new_mask;
4059         bool new_flex_offset = false;
4060         bool flex_l3 = false;
4061         u16 *fdir_filter_count;
4062         u16 index, src_offset = 0;
4063         u8 pit_index = 0;
4064         int err;
4065 
4066         switch (fsp->flow_type & ~FLOW_EXT) {
4067         case SCTP_V4_FLOW:
4068                 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP;
4069                 fdir_filter_count = &pf->fd_sctp4_filter_cnt;
4070                 break;
4071         case TCP_V4_FLOW:
4072                 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
4073                 fdir_filter_count = &pf->fd_tcp4_filter_cnt;
4074                 break;
4075         case UDP_V4_FLOW:
4076                 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
4077                 fdir_filter_count = &pf->fd_udp4_filter_cnt;
4078                 break;
4079         case IP_USER_FLOW:
4080                 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;
4081                 fdir_filter_count = &pf->fd_ip4_filter_cnt;
4082                 flex_l3 = true;
4083                 break;
4084         default:
4085                 return -EOPNOTSUPP;
4086         }
4087 
4088         /* Read the current input set from register memory. */
4089         current_mask = i40e_read_fd_input_set(pf, index);
4090         new_mask = current_mask;
4091 
4092         /* Determine, if any, the required changes to the input set in order
4093          * to support the provided mask.
4094          *
4095          * Hardware only supports masking at word (2 byte) granularity and does
4096          * not support full bitwise masking. This implementation simplifies
4097          * even further and only supports fully enabled or fully disabled
4098          * masks for each field, even though we could split the ip4src and
4099          * ip4dst fields.
4100          */
4101         switch (fsp->flow_type & ~FLOW_EXT) {
4102         case SCTP_V4_FLOW:
4103                 new_mask &= ~I40E_VERIFY_TAG_MASK;
4104                 /* Fall through */
4105         case TCP_V4_FLOW:
4106         case UDP_V4_FLOW:
4107                 tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec;
4108 
4109                 /* IPv4 source address */
4110                 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF))
4111                         new_mask |= I40E_L3_SRC_MASK;
4112                 else if (!tcp_ip4_spec->ip4src)
4113                         new_mask &= ~I40E_L3_SRC_MASK;
4114                 else
4115                         return -EOPNOTSUPP;
4116 
4117                 /* IPv4 destination address */
4118                 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF))
4119                         new_mask |= I40E_L3_DST_MASK;
4120                 else if (!tcp_ip4_spec->ip4dst)
4121                         new_mask &= ~I40E_L3_DST_MASK;
4122                 else
4123                         return -EOPNOTSUPP;
4124 
4125                 /* L4 source port */
4126                 if (tcp_ip4_spec->psrc == htons(0xFFFF))
4127                         new_mask |= I40E_L4_SRC_MASK;
4128                 else if (!tcp_ip4_spec->psrc)
4129                         new_mask &= ~I40E_L4_SRC_MASK;
4130                 else
4131                         return -EOPNOTSUPP;
4132 
4133                 /* L4 destination port */
4134                 if (tcp_ip4_spec->pdst == htons(0xFFFF))
4135                         new_mask |= I40E_L4_DST_MASK;
4136                 else if (!tcp_ip4_spec->pdst)
4137                         new_mask &= ~I40E_L4_DST_MASK;
4138                 else
4139                         return -EOPNOTSUPP;
4140 
4141                 /* Filtering on Type of Service is not supported. */
4142                 if (tcp_ip4_spec->tos)
4143                         return -EOPNOTSUPP;
4144 
4145                 break;
4146         case IP_USER_FLOW:
4147                 usr_ip4_spec = &fsp->m_u.usr_ip4_spec;
4148 
4149                 /* IPv4 source address */
4150                 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF))
4151                         new_mask |= I40E_L3_SRC_MASK;
4152                 else if (!usr_ip4_spec->ip4src)
4153                         new_mask &= ~I40E_L3_SRC_MASK;
4154                 else
4155                         return -EOPNOTSUPP;
4156 
4157                 /* IPv4 destination address */
4158                 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF))
4159                         new_mask |= I40E_L3_DST_MASK;
4160                 else if (!usr_ip4_spec->ip4dst)
4161                         new_mask &= ~I40E_L3_DST_MASK;
4162                 else
4163                         return -EOPNOTSUPP;
4164 
4165                 /* First 4 bytes of L4 header */
4166                 if (usr_ip4_spec->l4_4_bytes == htonl(0xFFFFFFFF))
4167                         new_mask |= I40E_L4_SRC_MASK | I40E_L4_DST_MASK;
4168                 else if (!usr_ip4_spec->l4_4_bytes)
4169                         new_mask &= ~(I40E_L4_SRC_MASK | I40E_L4_DST_MASK);
4170                 else
4171                         return -EOPNOTSUPP;
4172 
4173                 /* Filtering on Type of Service is not supported. */
4174                 if (usr_ip4_spec->tos)
4175                         return -EOPNOTSUPP;
4176 
4177                 /* Filtering on IP version is not supported */
4178                 if (usr_ip4_spec->ip_ver)
4179                         return -EINVAL;
4180 
4181                 /* Filtering on L4 protocol is not supported */
4182                 if (usr_ip4_spec->proto)
4183                         return -EINVAL;
4184 
4185                 break;
4186         default:
4187                 return -EOPNOTSUPP;
4188         }
4189 
4190         /* First, clear all flexible filter entries */
4191         new_mask &= ~I40E_FLEX_INPUT_MASK;
4192 
4193         /* If we have a flexible filter, try to add this offset to the correct
4194          * flexible filter PIT list. Once finished, we can update the mask.
4195          * If the src_offset changed, we will get a new mask value which will
4196          * trigger an input set change.
4197          */
4198         if (userdef->flex_filter) {
4199                 struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL;
4200 
4201                 /* Flexible offset must be even, since the flexible payload
4202                  * must be aligned on 2-byte boundary.
4203                  */
4204                 if (userdef->flex_offset & 0x1) {
4205                         dev_warn(&pf->pdev->dev,
4206                                  "Flexible data offset must be 2-byte aligned\n");
4207                         return -EINVAL;
4208                 }
4209 
4210                 src_offset = userdef->flex_offset >> 1;
4211 
4212                 /* FLX_PIT source offset value is only so large */
4213                 if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) {
4214                         dev_warn(&pf->pdev->dev,
4215                                  "Flexible data must reside within first 64 bytes of the packet payload\n");
4216                         return -EINVAL;
4217                 }
4218 
4219                 /* See if this offset has already been programmed. If we get
4220                  * an ERR_PTR, then the filter is not safe to add. Otherwise,
4221                  * if we get a NULL pointer, this means we will need to add
4222                  * the offset.
4223                  */
4224                 flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list,
4225                                                  src_offset);
4226                 if (IS_ERR(flex_pit))
4227                         return PTR_ERR(flex_pit);
4228 
4229                 /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown)
4230                  * packet types, and thus we need to program both L3 and L4
4231                  * flexible values. These must have identical flexible index,
4232                  * as otherwise we can't correctly program the input set. So
4233                  * we'll find both an L3 and L4 index and make sure they are
4234                  * the same.
4235                  */
4236                 if (flex_l3) {
4237                         l3_flex_pit =
4238                                 i40e_find_flex_offset(&pf->l3_flex_pit_list,
4239                                                       src_offset);
4240                         if (IS_ERR(l3_flex_pit))
4241                                 return PTR_ERR(l3_flex_pit);
4242 
4243                         if (flex_pit) {
4244                                 /* If we already had a matching L4 entry, we
4245                                  * need to make sure that the L3 entry we
4246                                  * obtained uses the same index.
4247                                  */
4248                                 if (l3_flex_pit) {
4249                                         if (l3_flex_pit->pit_index !=
4250                                             flex_pit->pit_index) {
4251                                                 return -EINVAL;
4252                                         }
4253                                 } else {
4254                                         new_flex_offset = true;
4255                                 }
4256                         } else {
4257                                 flex_pit = l3_flex_pit;
4258                         }
4259                 }
4260 
4261                 /* If we didn't find an existing flex offset, we need to
4262                  * program a new one. However, we don't immediately program it
4263                  * here because we will wait to program until after we check
4264                  * that it is safe to change the input set.
4265                  */
4266                 if (!flex_pit) {
4267                         new_flex_offset = true;
4268                         pit_index = i40e_unused_pit_index(pf);
4269                 } else {
4270                         pit_index = flex_pit->pit_index;
4271                 }
4272 
4273                 /* Update the mask with the new offset */
4274                 new_mask |= i40e_pit_index_to_mask(pit_index);
4275         }
4276 
4277         /* If the mask and flexible filter offsets for this filter match the
4278          * currently programmed values we don't need any input set change, so
4279          * this filter is safe to install.
4280          */
4281         if (new_mask == current_mask && !new_flex_offset)
4282                 return 0;
4283 
4284         netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n",
4285                    i40e_flow_str(fsp));
4286         i40e_print_input_set(vsi, current_mask, new_mask);
4287         if (new_flex_offset) {
4288                 netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d",
4289                            pit_index, src_offset);
4290         }
4291 
4292         /* Hardware input sets are global across multiple ports, so even the
4293          * main port cannot change them when in MFP mode as this would impact
4294          * any filters on the other ports.
4295          */
4296         if (pf->flags & I40E_FLAG_MFP_ENABLED) {
4297                 netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n");
4298                 return -EOPNOTSUPP;
4299         }
4300 
4301         /* This filter requires us to update the input set. However, hardware
4302          * only supports one input set per flow type, and does not support
4303          * separate masks for each filter. This means that we can only support
4304          * a single mask for all filters of a specific type.
4305          *
4306          * If we have preexisting filters, they obviously depend on the
4307          * current programmed input set. Display a diagnostic message in this
4308          * case explaining why the filter could not be accepted.
4309          */
4310         if (*fdir_filter_count) {
4311                 netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n",
4312                           i40e_flow_str(fsp),
4313                           *fdir_filter_count);
4314                 return -EOPNOTSUPP;
4315         }
4316 
4317         i40e_write_fd_input_set(pf, index, new_mask);
4318 
4319         /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented
4320          * frames. If we're programming the input set for IPv4/Other, we also
4321          * need to program the IPv4/Fragmented input set. Since we don't have
4322          * separate support, we'll always assume and enforce that the two flow
4323          * types must have matching input sets.
4324          */
4325         if (index == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER)
4326                 i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4,
4327                                         new_mask);
4328 
4329         /* Add the new offset and update table, if necessary */
4330         if (new_flex_offset) {
4331                 err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset,
4332                                            pit_index);
4333                 if (err)
4334                         return err;
4335 
4336                 if (flex_l3) {
4337                         err = i40e_add_flex_offset(&pf->l3_flex_pit_list,
4338                                                    src_offset,
4339                                                    pit_index);
4340                         if (err)
4341                                 return err;
4342                 }
4343 
4344                 i40e_reprogram_flex_pit(pf);
4345         }
4346 
4347         return 0;
4348 }
4349 
4350 /**
4351  * i40e_match_fdir_filter - Return true of two filters match
4352  * @a: pointer to filter struct
4353  * @b: pointer to filter struct
4354  *
4355  * Returns true if the two filters match exactly the same criteria. I.e. they
4356  * match the same flow type and have the same parameters. We don't need to
4357  * check any input-set since all filters of the same flow type must use the
4358  * same input set.
4359  **/
4360 static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a,
4361                                    struct i40e_fdir_filter *b)
4362 {
4363         /* The filters do not much if any of these criteria differ. */
4364         if (a->dst_ip != b->dst_ip ||
4365             a->src_ip != b->src_ip ||
4366             a->dst_port != b->dst_port ||
4367             a->src_port != b->src_port ||
4368             a->flow_type != b->flow_type ||
4369             a->ip4_proto != b->ip4_proto)
4370                 return false;
4371 
4372         return true;
4373 }
4374 
4375 /**
4376  * i40e_disallow_matching_filters - Check that new filters differ
4377  * @vsi: pointer to the targeted VSI
4378  * @input: new filter to check
4379  *
4380  * Due to hardware limitations, it is not possible for two filters that match
4381  * similar criteria to be programmed at the same time. This is true for a few
4382  * reasons:
4383  *
4384  * (a) all filters matching a particular flow type must use the same input
4385  * set, that is they must match the same criteria.
4386  * (b) different flow types will never match the same packet, as the flow type
4387  * is decided by hardware before checking which rules apply.
4388  * (c) hardware has no way to distinguish which order filters apply in.
4389  *
4390  * Due to this, we can't really support using the location data to order
4391  * filters in the hardware parsing. It is technically possible for the user to
4392  * request two filters matching the same criteria but which select different
4393  * queues. In this case, rather than keep both filters in the list, we reject
4394  * the 2nd filter when the user requests adding it.
4395  *
4396  * This avoids needing to track location for programming the filter to
4397  * hardware, and ensures that we avoid some strange scenarios involving
4398  * deleting filters which match the same criteria.
4399  **/
4400 static int i40e_disallow_matching_filters(struct i40e_vsi *vsi,
4401                                           struct i40e_fdir_filter *input)
4402 {
4403         struct i40e_pf *pf = vsi->back;
4404         struct i40e_fdir_filter *rule;
4405         struct hlist_node *node2;
4406 
4407         /* Loop through every filter, and check that it doesn't match */
4408         hlist_for_each_entry_safe(rule, node2,
4409                                   &pf->fdir_filter_list, fdir_node) {
4410                 /* Don't check the filters match if they share the same fd_id,
4411                  * since the new filter is actually just updating the target
4412                  * of the old filter.
4413                  */
4414                 if (rule->fd_id == input->fd_id)
4415                         continue;
4416 
4417                 /* If any filters match, then print a warning message to the
4418                  * kernel message buffer and bail out.
4419                  */
4420                 if (i40e_match_fdir_filter(rule, input)) {
4421                         dev_warn(&pf->pdev->dev,
4422                                  "Existing user defined filter %d already matches this flow.\n",
4423                                  rule->fd_id);
4424                         return -EINVAL;
4425                 }
4426         }
4427 
4428         return 0;
4429 }
4430 
4431 /**
4432  * i40e_add_fdir_ethtool - Add/Remove Flow Director filters
4433  * @vsi: pointer to the targeted VSI
4434  * @cmd: command to get or set RX flow classification rules
4435  *
4436  * Add Flow Director filters for a specific flow spec based on their
4437  * protocol.  Returns 0 if the filters were successfully added.
4438  **/
4439 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
4440                                  struct ethtool_rxnfc *cmd)
4441 {
4442         struct i40e_rx_flow_userdef userdef;
4443         struct ethtool_rx_flow_spec *fsp;
4444         struct i40e_fdir_filter *input;
4445         u16 dest_vsi = 0, q_index = 0;
4446         struct i40e_pf *pf;
4447         int ret = -EINVAL;
4448         u8 dest_ctl;
4449 
4450         if (!vsi)
4451                 return -EINVAL;
4452         pf = vsi->back;
4453 
4454         if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
4455                 return -EOPNOTSUPP;
4456 
4457         if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state))
4458                 return -ENOSPC;
4459 
4460         if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
4461             test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
4462                 return -EBUSY;
4463 
4464         if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))
4465                 return -EBUSY;
4466 
4467         fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
4468 
4469         /* Parse the user-defined field */
4470         if (i40e_parse_rx_flow_user_data(fsp, &userdef))
4471                 return -EINVAL;
4472 
4473         /* Extended MAC field is not supported */
4474         if (fsp->flow_type & FLOW_MAC_EXT)
4475                 return -EINVAL;
4476 
4477         ret = i40e_check_fdir_input_set(vsi, fsp, &userdef);
4478         if (ret)
4479                 return ret;
4480 
4481         if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort +
4482                               pf->hw.func_caps.fd_filters_guaranteed)) {
4483                 return -EINVAL;
4484         }
4485 
4486         /* ring_cookie is either the drop index, or is a mask of the queue
4487          * index and VF id we wish to target.
4488          */
4489         if (fsp->ring_cookie == RX_CLS_FLOW_DISC) {
4490                 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
4491         } else {
4492                 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie);
4493                 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie);
4494 
4495                 if (!vf) {
4496                         if (ring >= vsi->num_queue_pairs)
4497                                 return -EINVAL;
4498                         dest_vsi = vsi->id;
4499                 } else {
4500                         /* VFs are zero-indexed, so we subtract one here */
4501                         vf--;
4502 
4503                         if (vf >= pf->num_alloc_vfs)
4504                                 return -EINVAL;
4505                         if (ring >= pf->vf[vf].num_queue_pairs)
4506                                 return -EINVAL;
4507                         dest_vsi = pf->vf[vf].lan_vsi_id;
4508                 }
4509                 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
4510                 q_index = ring;
4511         }
4512 
4513         input = kzalloc(sizeof(*input), GFP_KERNEL);
4514 
4515         if (!input)
4516                 return -ENOMEM;
4517 
4518         input->fd_id = fsp->location;
4519         input->q_index = q_index;
4520         input->dest_vsi = dest_vsi;
4521         input->dest_ctl = dest_ctl;
4522         input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID;
4523         input->cnt_index  = I40E_FD_SB_STAT_IDX(pf->hw.pf_id);
4524         input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src;
4525         input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
4526         input->flow_type = fsp->flow_type & ~FLOW_EXT;
4527         input->ip4_proto = fsp->h_u.usr_ip4_spec.proto;
4528 
4529         /* Reverse the src and dest notion, since the HW expects them to be from
4530          * Tx perspective where as the input from user is from Rx filter view.
4531          */
4532         input->dst_port = fsp->h_u.tcp_ip4_spec.psrc;
4533         input->src_port = fsp->h_u.tcp_ip4_spec.pdst;
4534         input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src;
4535         input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
4536 
4537         if (userdef.flex_filter) {
4538                 input->flex_filter = true;
4539                 input->flex_word = cpu_to_be16(userdef.flex_word);
4540                 input->flex_offset = userdef.flex_offset;
4541         }
4542 
4543         /* Avoid programming two filters with identical match criteria. */
4544         ret = i40e_disallow_matching_filters(vsi, input);
4545         if (ret)
4546                 goto free_filter_memory;
4547 
4548         /* Add the input filter to the fdir_input_list, possibly replacing
4549          * a previous filter. Do not free the input structure after adding it
4550          * to the list as this would cause a use-after-free bug.
4551          */
4552         i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL);
4553         ret = i40e_add_del_fdir(vsi, input, true);
4554         if (ret)
4555                 goto remove_sw_rule;
4556         return 0;
4557 
4558 remove_sw_rule:
4559         hlist_del(&input->fdir_node);
4560         pf->fdir_pf_active_filters--;
4561 free_filter_memory:
4562         kfree(input);
4563         return ret;
4564 }
4565 
4566 /**
4567  * i40e_set_rxnfc - command to set RX flow classification rules
4568  * @netdev: network interface device structure
4569  * @cmd: ethtool rxnfc command
4570  *
4571  * Returns Success if the command is supported.
4572  **/
4573 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
4574 {
4575         struct i40e_netdev_priv *np = netdev_priv(netdev);
4576         struct i40e_vsi *vsi = np->vsi;
4577         struct i40e_pf *pf = vsi->back;
4578         int ret = -EOPNOTSUPP;
4579 
4580         switch (cmd->cmd) {
4581         case ETHTOOL_SRXFH:
4582                 ret = i40e_set_rss_hash_opt(pf, cmd);
4583                 break;
4584         case ETHTOOL_SRXCLSRLINS:
4585                 ret = i40e_add_fdir_ethtool(vsi, cmd);
4586                 break;
4587         case ETHTOOL_SRXCLSRLDEL:
4588                 ret = i40e_del_fdir_entry(vsi, cmd);
4589                 break;
4590         default:
4591                 break;
4592         }
4593 
4594         return ret;
4595 }
4596 
4597 /**
4598  * i40e_max_channels - get Max number of combined channels supported
4599  * @vsi: vsi pointer
4600  **/
4601 static unsigned int i40e_max_channels(struct i40e_vsi *vsi)
4602 {
4603         /* TODO: This code assumes DCB and FD is disabled for now. */
4604         return vsi->alloc_queue_pairs;
4605 }
4606 
4607 /**
4608  * i40e_get_channels - Get the current channels enabled and max supported etc.
4609  * @dev: network interface device structure
4610  * @ch: ethtool channels structure
4611  *
4612  * We don't support separate tx and rx queues as channels. The other count
4613  * represents how many queues are being used for control. max_combined counts
4614  * how many queue pairs we can support. They may not be mapped 1 to 1 with
4615  * q_vectors since we support a lot more queue pairs than q_vectors.
4616  **/
4617 static void i40e_get_channels(struct net_device *dev,
4618                               struct ethtool_channels *ch)
4619 {
4620         struct i40e_netdev_priv *np = netdev_priv(dev);
4621         struct i40e_vsi *vsi = np->vsi;
4622         struct i40e_pf *pf = vsi->back;
4623 
4624         /* report maximum channels */
4625         ch->max_combined = i40e_max_channels(vsi);
4626 
4627         /* report info for other vector */
4628         ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0;
4629         ch->max_other = ch->other_count;
4630 
4631         /* Note: This code assumes DCB is disabled for now. */
4632         ch->combined_count = vsi->num_queue_pairs;
4633 }
4634 
4635 /**
4636  * i40e_set_channels - Set the new channels count.
4637  * @dev: network interface device structure
4638  * @ch: ethtool channels structure
4639  *
4640  * The new channels count may not be the same as requested by the user
4641  * since it gets rounded down to a power of 2 value.
4642  **/
4643 static int i40e_set_channels(struct net_device *dev,
4644                              struct ethtool_channels *ch)
4645 {
4646         const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
4647         struct i40e_netdev_priv *np = netdev_priv(dev);
4648         unsigned int count = ch->combined_count;
4649         struct i40e_vsi *vsi = np->vsi;
4650         struct i40e_pf *pf = vsi->back;
4651         struct i40e_fdir_filter *rule;
4652         struct hlist_node *node2;
4653         int new_count;
4654         int err = 0;
4655 
4656         /* We do not support setting channels for any other VSI at present */
4657         if (vsi->type != I40E_VSI_MAIN)
4658                 return -EINVAL;
4659 
4660         /* We do not support setting channels via ethtool when TCs are
4661          * configured through mqprio
4662          */
4663         if (pf->flags & I40E_FLAG_TC_MQPRIO)
4664                 return -EINVAL;
4665 
4666         /* verify they are not requesting separate vectors */
4667         if (!count || ch->rx_count || ch->tx_count)
4668                 return -EINVAL;
4669 
4670         /* verify other_count has not changed */
4671         if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0))
4672                 return -EINVAL;
4673 
4674         /* verify the number of channels does not exceed hardware limits */
4675         if (count > i40e_max_channels(vsi))
4676                 return -EINVAL;
4677 
4678         /* verify that the number of channels does not invalidate any current
4679          * flow director rules
4680          */
4681         hlist_for_each_entry_safe(rule, node2,
4682                                   &pf->fdir_filter_list, fdir_node) {
4683                 if (rule->dest_ctl != drop && count <= rule->q_index) {
4684                         dev_warn(&pf->pdev->dev,
4685                                  "Existing user defined filter %d assigns flow to queue %d\n",
4686                                  rule->fd_id, rule->q_index);
4687                         err = -EINVAL;
4688                 }
4689         }
4690 
4691         if (err) {
4692                 dev_err(&pf->pdev->dev,
4693                         "Existing filter rules must be deleted to reduce combined channel count to %d\n",
4694                         count);
4695                 return err;
4696         }
4697 
4698         /* update feature limits from largest to smallest supported values */
4699         /* TODO: Flow director limit, DCB etc */
4700 
4701         /* use rss_reconfig to rebuild with new queue count and update traffic
4702          * class queue mapping
4703          */
4704         new_count = i40e_reconfig_rss_queues(pf, count);
4705         if (new_count > 0)
4706                 return 0;
4707         else
4708                 return -EINVAL;
4709 }
4710 
4711 /**
4712  * i40e_get_rxfh_key_size - get the RSS hash key size
4713  * @netdev: network interface device structure
4714  *
4715  * Returns the table size.
4716  **/
4717 static u32 i40e_get_rxfh_key_size(struct net_device *netdev)
4718 {
4719         return I40E_HKEY_ARRAY_SIZE;
4720 }
4721 
4722 /**
4723  * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size
4724  * @netdev: network interface device structure
4725  *
4726  * Returns the table size.
4727  **/
4728 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev)
4729 {
4730         return I40E_HLUT_ARRAY_SIZE;
4731 }
4732 
4733 /**
4734  * i40e_get_rxfh - get the rx flow hash indirection table
4735  * @netdev: network interface device structure
4736  * @indir: indirection table
4737  * @key: hash key
4738  * @hfunc: hash function
4739  *
4740  * Reads the indirection table directly from the hardware. Returns 0 on
4741  * success.
4742  **/
4743 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
4744                          u8 *hfunc)
4745 {
4746         struct i40e_netdev_priv *np = netdev_priv(netdev);
4747         struct i40e_vsi *vsi = np->vsi;
4748         u8 *lut, *seed = NULL;
4749         int ret;
4750         u16 i;
4751 
4752         if (hfunc)
4753                 *hfunc = ETH_RSS_HASH_TOP;
4754 
4755         if (!indir)
4756                 return 0;
4757 
4758         seed = key;
4759         lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
4760         if (!lut)
4761                 return -ENOMEM;
4762         ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE);
4763         if (ret)
4764                 goto out;
4765         for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
4766                 indir[i] = (u32)(lut[i]);
4767 
4768 out:
4769         kfree(lut);
4770 
4771         return ret;
4772 }
4773 
4774 /**
4775  * i40e_set_rxfh - set the rx flow hash indirection table
4776  * @netdev: network interface device structure
4777  * @indir: indirection table
4778  * @key: hash key
4779  * @hfunc: hash function to use
4780  *
4781  * Returns -EINVAL if the table specifies an invalid queue id, otherwise
4782  * returns 0 after programming the table.
4783  **/
4784 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir,
4785                          const u8 *key, const u8 hfunc)
4786 {
4787         struct i40e_netdev_priv *np = netdev_priv(netdev);
4788         struct i40e_vsi *vsi = np->vsi;
4789         struct i40e_pf *pf = vsi->back;
4790         u8 *seed = NULL;
4791         u16 i;
4792 
4793         if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
4794                 return -EOPNOTSUPP;
4795 
4796         if (key) {
4797                 if (!vsi->rss_hkey_user) {
4798                         vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE,
4799                                                      GFP_KERNEL);
4800                         if (!vsi->rss_hkey_user)
4801                                 return -ENOMEM;
4802                 }
4803                 memcpy(vsi->rss_hkey_user, key, I40E_HKEY_ARRAY_SIZE);
4804                 seed = vsi->rss_hkey_user;
4805         }
4806         if (!vsi->rss_lut_user) {
4807                 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
4808                 if (!vsi->rss_lut_user)
4809                         return -ENOMEM;
4810         }
4811 
4812         /* Each 32 bits pointed by 'indir' is stored with a lut entry */
4813         if (indir)
4814                 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
4815                         vsi->rss_lut_user[i] = (u8)(indir[i]);
4816         else
4817                 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE,
4818                                   vsi->rss_size);
4819 
4820         return i40e_config_rss(vsi, seed, vsi->rss_lut_user,
4821                                I40E_HLUT_ARRAY_SIZE);
4822 }
4823 
4824 /**
4825  * i40e_get_priv_flags - report device private flags
4826  * @dev: network interface device structure
4827  *
4828  * The get string set count and the string set should be matched for each
4829  * flag returned.  Add new strings for each flag to the i40e_gstrings_priv_flags
4830  * array.
4831  *
4832  * Returns a u32 bitmap of flags.
4833  **/
4834 static u32 i40e_get_priv_flags(struct net_device *dev)
4835 {
4836         struct i40e_netdev_priv *np = netdev_priv(dev);
4837         struct i40e_vsi *vsi = np->vsi;
4838         struct i40e_pf *pf = vsi->back;
4839         u32 i, j, ret_flags = 0;
4840 
4841         for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
4842                 const struct i40e_priv_flags *priv_flags;
4843 
4844                 priv_flags = &i40e_gstrings_priv_flags[i];
4845 
4846                 if (priv_flags->flag & pf->flags)
4847                         ret_flags |= BIT(i);
4848         }
4849 
4850         if (pf->hw.pf_id != 0)
4851                 return ret_flags;
4852 
4853         for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) {
4854                 const struct i40e_priv_flags *priv_flags;
4855 
4856                 priv_flags = &i40e_gl_gstrings_priv_flags[j];
4857 
4858                 if (priv_flags->flag & pf->flags)
4859                         ret_flags |= BIT(i + j);
4860         }
4861 
4862         return ret_flags;
4863 }
4864 
4865 /**
4866  * i40e_set_priv_flags - set private flags
4867  * @dev: network interface device structure
4868  * @flags: bit flags to be set
4869  **/
4870 static int i40e_set_priv_flags(struct net_device *dev, u32 flags)
4871 {
4872         struct i40e_netdev_priv *np = netdev_priv(dev);
4873         u64 orig_flags, new_flags, changed_flags;
4874         enum i40e_admin_queue_err adq_err;
4875         struct i40e_vsi *vsi = np->vsi;
4876         struct i40e_pf *pf = vsi->back;
4877         bool is_reset_needed;
4878         i40e_status status;
4879         u32 i, j;
4880 
4881         orig_flags = READ_ONCE(pf->flags);
4882         new_flags = orig_flags;
4883 
4884         for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
4885                 const struct i40e_priv_flags *priv_flags;
4886 
4887                 priv_flags = &i40e_gstrings_priv_flags[i];
4888 
4889                 if (flags & BIT(i))
4890                         new_flags |= priv_flags->flag;
4891                 else
4892                         new_flags &= ~(priv_flags->flag);
4893 
4894                 /* If this is a read-only flag, it can't be changed */
4895                 if (priv_flags->read_only &&
4896                     ((orig_flags ^ new_flags) & ~BIT(i)))
4897                         return -EOPNOTSUPP;
4898         }
4899 
4900         if (pf->hw.pf_id != 0)
4901                 goto flags_complete;
4902 
4903         for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) {
4904                 const struct i40e_priv_flags *priv_flags;
4905 
4906                 priv_flags = &i40e_gl_gstrings_priv_flags[j];
4907 
4908                 if (flags & BIT(i + j))
4909                         new_flags |= priv_flags->flag;
4910                 else
4911                         new_flags &= ~(priv_flags->flag);
4912 
4913                 /* If this is a read-only flag, it can't be changed */
4914                 if (priv_flags->read_only &&
4915                     ((orig_flags ^ new_flags) & ~BIT(i)))
4916                         return -EOPNOTSUPP;
4917         }
4918 
4919 flags_complete:
4920         changed_flags = orig_flags ^ new_flags;
4921 
4922         is_reset_needed = !!(changed_flags & (I40E_FLAG_VEB_STATS_ENABLED |
4923                 I40E_FLAG_LEGACY_RX | I40E_FLAG_SOURCE_PRUNING_DISABLED |
4924                 I40E_FLAG_DISABLE_FW_LLDP));
4925 
4926         /* Before we finalize any flag changes, we need to perform some
4927          * checks to ensure that the changes are supported and safe.
4928          */
4929 
4930         /* ATR eviction is not supported on all devices */
4931         if ((new_flags & I40E_FLAG_HW_ATR_EVICT_ENABLED) &&
4932             !(pf->hw_features & I40E_HW_ATR_EVICT_CAPABLE))
4933                 return -EOPNOTSUPP;
4934 
4935         /* If the driver detected FW LLDP was disabled on init, this flag could
4936          * be set, however we do not support _changing_ the flag:
4937          * - on XL710 if NPAR is enabled or FW API version < 1.7
4938          * - on X722 with FW API version < 1.6
4939          * There are situations where older FW versions/NPAR enabled PFs could
4940          * disable LLDP, however we _must_ not allow the user to enable/disable
4941          * LLDP with this flag on unsupported FW versions.
4942          */
4943         if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) {
4944                 if (!(pf->hw.flags & I40E_HW_FLAG_FW_LLDP_STOPPABLE)) {
4945                         dev_warn(&pf->pdev->dev,
4946                                  "Device does not support changing FW LLDP\n");
4947                         return -EOPNOTSUPP;
4948                 }
4949         }
4950 
4951         if (((changed_flags & I40E_FLAG_RS_FEC) ||
4952              (changed_flags & I40E_FLAG_BASE_R_FEC)) &&
4953             pf->hw.device_id != I40E_DEV_ID_25G_SFP28 &&
4954             pf->hw.device_id != I40E_DEV_ID_25G_B) {
4955                 dev_warn(&pf->pdev->dev,
4956                          "Device does not support changing FEC configuration\n");
4957                 return -EOPNOTSUPP;
4958         }
4959 
4960         /* Process any additional changes needed as a result of flag changes.
4961          * The changed_flags value reflects the list of bits that were
4962          * changed in the code above.
4963          */
4964 
4965         /* Flush current ATR settings if ATR was disabled */
4966         if ((changed_flags & I40E_FLAG_FD_ATR_ENABLED) &&
4967             !(new_flags & I40E_FLAG_FD_ATR_ENABLED)) {
4968                 set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state);
4969                 set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state);
4970         }
4971 
4972         if (changed_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT) {
4973                 u16 sw_flags = 0, valid_flags = 0;
4974                 int ret;
4975 
4976                 if (!(new_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT))
4977                         sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
4978                 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
4979                 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags,
4980                                                 0, NULL);
4981                 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) {
4982                         dev_info(&pf->pdev->dev,
4983                                  "couldn't set switch config bits, err %s aq_err %s\n",
4984                                  i40e_stat_str(&pf->hw, ret),
4985                                  i40e_aq_str(&pf->hw,
4986                                              pf->hw.aq.asq_last_status));
4987                         /* not a fatal problem, just keep going */
4988                 }
4989         }
4990 
4991         if ((changed_flags & I40E_FLAG_RS_FEC) ||
4992             (changed_flags & I40E_FLAG_BASE_R_FEC)) {
4993                 u8 fec_cfg = 0;
4994 
4995                 if (new_flags & I40E_FLAG_RS_FEC &&
4996                     new_flags & I40E_FLAG_BASE_R_FEC) {
4997                         fec_cfg = I40E_AQ_SET_FEC_AUTO;
4998                 } else if (new_flags & I40E_FLAG_RS_FEC) {
4999                         fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS |
5000                                    I40E_AQ_SET_FEC_ABILITY_RS);
5001                 } else if (new_flags & I40E_FLAG_BASE_R_FEC) {
5002                         fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR |
5003                                    I40E_AQ_SET_FEC_ABILITY_KR);
5004                 }
5005                 if (i40e_set_fec_cfg(dev, fec_cfg))
5006                         dev_warn(&pf->pdev->dev, "Cannot change FEC config\n");
5007         }
5008 
5009         if ((changed_flags & new_flags &
5010              I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) &&
5011             (new_flags & I40E_FLAG_MFP_ENABLED))
5012                 dev_warn(&pf->pdev->dev,
5013                          "Turning on link-down-on-close flag may affect other partitions\n");
5014 
5015         if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) {
5016                 if (new_flags & I40E_FLAG_DISABLE_FW_LLDP) {
5017                         struct i40e_dcbx_config *dcbcfg;
5018 
5019                         i40e_aq_stop_lldp(&pf->hw, true, false, NULL);
5020                         i40e_aq_set_dcb_parameters(&pf->hw, true, NULL);
5021                         /* reset local_dcbx_config to default */
5022                         dcbcfg = &pf->hw.local_dcbx_config;
5023                         dcbcfg->etscfg.willing = 1;
5024                         dcbcfg->etscfg.maxtcs = 0;
5025                         dcbcfg->etscfg.tcbwtable[0] = 100;
5026                         for (i = 1; i < I40E_MAX_TRAFFIC_CLASS; i++)
5027                                 dcbcfg->etscfg.tcbwtable[i] = 0;
5028                         for (i = 0; i < I40E_MAX_USER_PRIORITY; i++)
5029                                 dcbcfg->etscfg.prioritytable[i] = 0;
5030                         dcbcfg->etscfg.tsatable[0] = I40E_IEEE_TSA_ETS;
5031                         dcbcfg->pfc.willing = 1;
5032                         dcbcfg->pfc.pfccap = I40E_MAX_TRAFFIC_CLASS;
5033                 } else {
5034                         status = i40e_aq_start_lldp(&pf->hw, false, NULL);
5035                         if (status) {
5036                                 adq_err = pf->hw.aq.asq_last_status;
5037                                 switch (adq_err) {
5038                                 case I40E_AQ_RC_EEXIST:
5039                                         dev_warn(&pf->pdev->dev,
5040                                                  "FW LLDP agent is already running\n");
5041                                         is_reset_needed = false;
5042                                         break;
5043                                 case I40E_AQ_RC_EPERM:
5044                                         dev_warn(&pf->pdev->dev,
5045                                                  "Device configuration forbids SW from starting the LLDP agent.\n");
5046                                         return -EINVAL;
5047                                 default:
5048                                         dev_warn(&pf->pdev->dev,
5049                                                  "Starting FW LLDP agent failed: error: %s, %s\n",
5050                                                  i40e_stat_str(&pf->hw,
5051                                                                status),
5052                                                  i40e_aq_str(&pf->hw,
5053                                                              adq_err));
5054                                         return -EINVAL;
5055                                 }
5056                         }
5057                 }
5058         }
5059 
5060         /* Now that we've checked to ensure that the new flags are valid, load
5061          * them into place. Since we only modify flags either (a) during
5062          * initialization or (b) while holding the RTNL lock, we don't need
5063          * anything fancy here.
5064          */
5065         pf->flags = new_flags;
5066 
5067         /* Issue reset to cause things to take effect, as additional bits
5068          * are added we will need to create a mask of bits requiring reset
5069          */
5070         if (is_reset_needed)
5071                 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
5072 
5073         return 0;
5074 }
5075 
5076 /**
5077  * i40e_get_module_info - get (Q)SFP+ module type info
5078  * @netdev: network interface device structure
5079  * @modinfo: module EEPROM size and layout information structure
5080  **/
5081 static int i40e_get_module_info(struct net_device *netdev,
5082                                 struct ethtool_modinfo *modinfo)
5083 {
5084         struct i40e_netdev_priv *np = netdev_priv(netdev);
5085         struct i40e_vsi *vsi = np->vsi;
5086         struct i40e_pf *pf = vsi->back;
5087         struct i40e_hw *hw = &pf->hw;
5088         u32 sff8472_comp = 0;
5089         u32 sff8472_swap = 0;
5090         u32 sff8636_rev = 0;
5091         i40e_status status;
5092         u32 type = 0;
5093 
5094         /* Check if firmware supports reading module EEPROM. */
5095         if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) {
5096                 netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n");
5097                 return -EINVAL;
5098         }
5099 
5100         status = i40e_update_link_info(hw);
5101         if (status)
5102                 return -EIO;
5103 
5104         if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) {
5105                 netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n");
5106                 return -EINVAL;
5107         }
5108 
5109         type = hw->phy.link_info.module_type[0];
5110 
5111         switch (type) {
5112         case I40E_MODULE_TYPE_SFP:
5113                 status = i40e_aq_get_phy_register(hw,
5114                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5115                                 I40E_I2C_EEPROM_DEV_ADDR,
5116                                 I40E_MODULE_SFF_8472_COMP,
5117                                 &sff8472_comp, NULL);
5118                 if (status)
5119                         return -EIO;
5120 
5121                 status = i40e_aq_get_phy_register(hw,
5122                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5123                                 I40E_I2C_EEPROM_DEV_ADDR,
5124                                 I40E_MODULE_SFF_8472_SWAP,
5125                                 &sff8472_swap, NULL);
5126                 if (status)
5127                         return -EIO;
5128 
5129                 /* Check if the module requires address swap to access
5130                  * the other EEPROM memory page.
5131                  */
5132                 if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) {
5133                         netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n");
5134                         modinfo->type = ETH_MODULE_SFF_8079;
5135                         modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5136                 } else if (sff8472_comp == 0x00) {
5137                         /* Module is not SFF-8472 compliant */
5138                         modinfo->type = ETH_MODULE_SFF_8079;
5139                         modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5140                 } else if (!(sff8472_swap & I40E_MODULE_SFF_DDM_IMPLEMENTED)) {
5141                         /* Module is SFF-8472 compliant but doesn't implement
5142                          * Digital Diagnostic Monitoring (DDM).
5143                          */
5144                         modinfo->type = ETH_MODULE_SFF_8079;
5145                         modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
5146                 } else {
5147                         modinfo->type = ETH_MODULE_SFF_8472;
5148                         modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
5149                 }
5150                 break;
5151         case I40E_MODULE_TYPE_QSFP_PLUS:
5152                 /* Read from memory page 0. */
5153                 status = i40e_aq_get_phy_register(hw,
5154                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5155                                 0,
5156                                 I40E_MODULE_REVISION_ADDR,
5157                                 &sff8636_rev, NULL);
5158                 if (status)
5159                         return -EIO;
5160                 /* Determine revision compliance byte */
5161                 if (sff8636_rev > 0x02) {
5162                         /* Module is SFF-8636 compliant */
5163                         modinfo->type = ETH_MODULE_SFF_8636;
5164                         modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5165                 } else {
5166                         modinfo->type = ETH_MODULE_SFF_8436;
5167                         modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5168                 }
5169                 break;
5170         case I40E_MODULE_TYPE_QSFP28:
5171                 modinfo->type = ETH_MODULE_SFF_8636;
5172                 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
5173                 break;
5174         default:
5175                 netdev_err(vsi->netdev, "Module type unrecognized\n");
5176                 return -EINVAL;
5177         }
5178         return 0;
5179 }
5180 
5181 /**
5182  * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents
5183  * @netdev: network interface device structure
5184  * @ee: EEPROM dump request structure
5185  * @data: buffer to be filled with EEPROM contents
5186  **/
5187 static int i40e_get_module_eeprom(struct net_device *netdev,
5188                                   struct ethtool_eeprom *ee,
5189                                   u8 *data)
5190 {
5191         struct i40e_netdev_priv *np = netdev_priv(netdev);
5192         struct i40e_vsi *vsi = np->vsi;
5193         struct i40e_pf *pf = vsi->back;
5194         struct i40e_hw *hw = &pf->hw;
5195         bool is_sfp = false;
5196         i40e_status status;
5197         u32 value = 0;
5198         int i;
5199 
5200         if (!ee || !ee->len || !data)
5201                 return -EINVAL;
5202 
5203         if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP)
5204                 is_sfp = true;
5205 
5206         for (i = 0; i < ee->len; i++) {
5207                 u32 offset = i + ee->offset;
5208                 u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0;
5209 
5210                 /* Check if we need to access the other memory page */
5211                 if (is_sfp) {
5212                         if (offset >= ETH_MODULE_SFF_8079_LEN) {
5213                                 offset -= ETH_MODULE_SFF_8079_LEN;
5214                                 addr = I40E_I2C_EEPROM_DEV_ADDR2;
5215                         }
5216                 } else {
5217                         while (offset >= ETH_MODULE_SFF_8436_LEN) {
5218                                 /* Compute memory page number and offset. */
5219                                 offset -= ETH_MODULE_SFF_8436_LEN / 2;
5220                                 addr++;
5221                         }
5222                 }
5223 
5224                 status = i40e_aq_get_phy_register(hw,
5225                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
5226                                 addr, offset, &value, NULL);
5227                 if (status)
5228                         return -EIO;
5229                 data[i] = value;
5230         }
5231         return 0;
5232 }
5233 
5234 static int i40e_get_eee(struct net_device *netdev, struct ethtool_eee *edata)
5235 {
5236         return -EOPNOTSUPP;
5237 }
5238 
5239 static int i40e_set_eee(struct net_device *netdev, struct ethtool_eee *edata)
5240 {
5241         return -EOPNOTSUPP;
5242 }
5243 
5244 static const struct ethtool_ops i40e_ethtool_recovery_mode_ops = {
5245         .set_eeprom             = i40e_set_eeprom,
5246         .get_eeprom_len         = i40e_get_eeprom_len,
5247         .get_eeprom             = i40e_get_eeprom,
5248 };
5249 
5250 static const struct ethtool_ops i40e_ethtool_ops = {
5251         .get_drvinfo            = i40e_get_drvinfo,
5252         .get_regs_len           = i40e_get_regs_len,
5253         .get_regs               = i40e_get_regs,
5254         .nway_reset             = i40e_nway_reset,
5255         .get_link               = ethtool_op_get_link,
5256         .get_wol                = i40e_get_wol,
5257         .set_wol                = i40e_set_wol,
5258         .set_eeprom             = i40e_set_eeprom,
5259         .get_eeprom_len         = i40e_get_eeprom_len,
5260         .get_eeprom             = i40e_get_eeprom,
5261         .get_ringparam          = i40e_get_ringparam,
5262         .set_ringparam          = i40e_set_ringparam,
5263         .get_pauseparam         = i40e_get_pauseparam,
5264         .set_pauseparam         = i40e_set_pauseparam,
5265         .get_msglevel           = i40e_get_msglevel,
5266         .set_msglevel           = i40e_set_msglevel,
5267         .get_rxnfc              = i40e_get_rxnfc,
5268         .set_rxnfc              = i40e_set_rxnfc,
5269         .self_test              = i40e_diag_test,
5270         .get_strings            = i40e_get_strings,
5271         .get_eee                = i40e_get_eee,
5272         .set_eee                = i40e_set_eee,
5273         .set_phys_id            = i40e_set_phys_id,
5274         .get_sset_count         = i40e_get_sset_count,
5275         .get_ethtool_stats      = i40e_get_ethtool_stats,
5276         .get_coalesce           = i40e_get_coalesce,
5277         .set_coalesce           = i40e_set_coalesce,
5278         .get_rxfh_key_size      = i40e_get_rxfh_key_size,
5279         .get_rxfh_indir_size    = i40e_get_rxfh_indir_size,
5280         .get_rxfh               = i40e_get_rxfh,
5281         .set_rxfh               = i40e_set_rxfh,
5282         .get_channels           = i40e_get_channels,
5283         .set_channels           = i40e_set_channels,
5284         .get_module_info        = i40e_get_module_info,
5285         .get_module_eeprom      = i40e_get_module_eeprom,
5286         .get_ts_info            = i40e_get_ts_info,
5287         .get_priv_flags         = i40e_get_priv_flags,
5288         .set_priv_flags         = i40e_set_priv_flags,
5289         .get_per_queue_coalesce = i40e_get_per_queue_coalesce,
5290         .set_per_queue_coalesce = i40e_set_per_queue_coalesce,
5291         .get_link_ksettings     = i40e_get_link_ksettings,
5292         .set_link_ksettings     = i40e_set_link_ksettings,
5293         .get_fecparam = i40e_get_fec_param,
5294         .set_fecparam = i40e_set_fec_param,
5295         .flash_device = i40e_ddp_flash,
5296 };
5297 
5298 void i40e_set_ethtool_ops(struct net_device *netdev)
5299 {
5300         struct i40e_netdev_priv *np = netdev_priv(netdev);
5301         struct i40e_pf          *pf = np->vsi->back;
5302 
5303         if (!test_bit(__I40E_RECOVERY_MODE, pf->state))
5304                 netdev->ethtool_ops = &i40e_ethtool_ops;
5305         else
5306                 netdev->ethtool_ops = &i40e_ethtool_recovery_mode_ops;
5307 }