drivers/net/ethernet/intel/ice/ice_ethtool.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* Copyright (c) 2018, Intel Corporation. */
   3
   4 /* ethtool support for ice */
   5
   6 #include "ice.h"
   7 #include "ice_flow.h"
   8 #include "ice_fltr.h"
   9 #include "ice_lib.h"
  10 #include "ice_dcb_lib.h"
  11 #include <net/dcbnl.h>
  12
  13 struct ice_stats {
  14         char stat_string[ETH_GSTRING_LEN];
  15         int sizeof_stat;
  16         int stat_offset;
  17 };
  18
  19 #define ICE_STAT(_type, _name, _stat) { \
  20         .stat_string = _name, \
  21         .sizeof_stat = sizeof_field(_type, _stat), \
  22         .stat_offset = offsetof(_type, _stat) \
  23 }
  24
  25 #define ICE_VSI_STAT(_name, _stat) \
  26                 ICE_STAT(struct ice_vsi, _name, _stat)
  27 #define ICE_PF_STAT(_name, _stat) \
  28                 ICE_STAT(struct ice_pf, _name, _stat)
  29
  30 static int ice_q_stats_len(struct net_device *netdev)
  31 {
  32         struct ice_netdev_priv *np = netdev_priv(netdev);
  33
  34         return ((np->vsi->alloc_txq + np->vsi->alloc_rxq) *
  35                 (sizeof(struct ice_q_stats) / sizeof(u64)));
  36 }
  37
  38 #define ICE_PF_STATS_LEN        ARRAY_SIZE(ice_gstrings_pf_stats)
  39 #define ICE_VSI_STATS_LEN       ARRAY_SIZE(ice_gstrings_vsi_stats)
  40
  41 #define ICE_PFC_STATS_LEN ( \
  42                 (sizeof_field(struct ice_pf, stats.priority_xoff_rx) + \
  43                  sizeof_field(struct ice_pf, stats.priority_xon_rx) + \
  44                  sizeof_field(struct ice_pf, stats.priority_xoff_tx) + \
  45                  sizeof_field(struct ice_pf, stats.priority_xon_tx)) \
  46                  / sizeof(u64))
  47 #define ICE_ALL_STATS_LEN(n)    (ICE_PF_STATS_LEN + ICE_PFC_STATS_LEN + \
  48                                  ICE_VSI_STATS_LEN + ice_q_stats_len(n))
  49
  50 static const struct ice_stats ice_gstrings_vsi_stats[] = {
  51         ICE_VSI_STAT("rx_unicast", eth_stats.rx_unicast),
  52         ICE_VSI_STAT("tx_unicast", eth_stats.tx_unicast),
  53         ICE_VSI_STAT("rx_multicast", eth_stats.rx_multicast),
  54         ICE_VSI_STAT("tx_multicast", eth_stats.tx_multicast),
  55         ICE_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast),
  56         ICE_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast),
  57         ICE_VSI_STAT("rx_bytes", eth_stats.rx_bytes),
  58         ICE_VSI_STAT("tx_bytes", eth_stats.tx_bytes),
  59         ICE_VSI_STAT("rx_dropped", eth_stats.rx_discards),
  60         ICE_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol),
  61         ICE_VSI_STAT("rx_alloc_fail", rx_buf_failed),
  62         ICE_VSI_STAT("rx_pg_alloc_fail", rx_page_failed),
  63         ICE_VSI_STAT("rx_gro_dropped", rx_gro_dropped),
  64         ICE_VSI_STAT("tx_errors", eth_stats.tx_errors),
  65         ICE_VSI_STAT("tx_linearize", tx_linearize),
  66         ICE_VSI_STAT("tx_busy", tx_busy),
  67         ICE_VSI_STAT("tx_restart", tx_restart),
  68 };
  69
  70 enum ice_ethtool_test_id {
  71         ICE_ETH_TEST_REG = 0,
  72         ICE_ETH_TEST_EEPROM,
  73         ICE_ETH_TEST_INTR,
  74         ICE_ETH_TEST_LOOP,
  75         ICE_ETH_TEST_LINK,
  76 };
  77
  78 static const char ice_gstrings_test[][ETH_GSTRING_LEN] = {
  79         "Register test  (offline)",
  80         "EEPROM test    (offline)",
  81         "Interrupt test (offline)",
  82         "Loopback test  (offline)",
  83         "Link test   (on/offline)",
  84 };
  85
  86 #define ICE_TEST_LEN (sizeof(ice_gstrings_test) / ETH_GSTRING_LEN)
  87
  88 /* These PF_STATs might look like duplicates of some NETDEV_STATs,
  89  * but they aren't. This device is capable of supporting multiple
  90  * VSIs/netdevs on a single PF. The NETDEV_STATs are for individual
  91  * netdevs whereas the PF_STATs are for the physical function that's
  92  * hosting these netdevs.
  93  *
  94  * The PF_STATs are appended to the netdev stats only when ethtool -S
  95  * is queried on the base PF netdev.
  96  */
  97 static const struct ice_stats ice_gstrings_pf_stats[] = {
  98         ICE_PF_STAT("rx_bytes.nic", stats.eth.rx_bytes),
  99         ICE_PF_STAT("tx_bytes.nic", stats.eth.tx_bytes),
 100         ICE_PF_STAT("rx_unicast.nic", stats.eth.rx_unicast),
 101         ICE_PF_STAT("tx_unicast.nic", stats.eth.tx_unicast),
 102         ICE_PF_STAT("rx_multicast.nic", stats.eth.rx_multicast),
 103         ICE_PF_STAT("tx_multicast.nic", stats.eth.tx_multicast),
 104         ICE_PF_STAT("rx_broadcast.nic", stats.eth.rx_broadcast),
 105         ICE_PF_STAT("tx_broadcast.nic", stats.eth.tx_broadcast),
 106         ICE_PF_STAT("tx_errors.nic", stats.eth.tx_errors),
 107         ICE_PF_STAT("tx_timeout.nic", tx_timeout_count),
 108         ICE_PF_STAT("rx_size_64.nic", stats.rx_size_64),
 109         ICE_PF_STAT("tx_size_64.nic", stats.tx_size_64),
 110         ICE_PF_STAT("rx_size_127.nic", stats.rx_size_127),
 111         ICE_PF_STAT("tx_size_127.nic", stats.tx_size_127),
 112         ICE_PF_STAT("rx_size_255.nic", stats.rx_size_255),
 113         ICE_PF_STAT("tx_size_255.nic", stats.tx_size_255),
 114         ICE_PF_STAT("rx_size_511.nic", stats.rx_size_511),
 115         ICE_PF_STAT("tx_size_511.nic", stats.tx_size_511),
 116         ICE_PF_STAT("rx_size_1023.nic", stats.rx_size_1023),
 117         ICE_PF_STAT("tx_size_1023.nic", stats.tx_size_1023),
 118         ICE_PF_STAT("rx_size_1522.nic", stats.rx_size_1522),
 119         ICE_PF_STAT("tx_size_1522.nic", stats.tx_size_1522),
 120         ICE_PF_STAT("rx_size_big.nic", stats.rx_size_big),
 121         ICE_PF_STAT("tx_size_big.nic", stats.tx_size_big),
 122         ICE_PF_STAT("link_xon_rx.nic", stats.link_xon_rx),
 123         ICE_PF_STAT("link_xon_tx.nic", stats.link_xon_tx),
 124         ICE_PF_STAT("link_xoff_rx.nic", stats.link_xoff_rx),
 125         ICE_PF_STAT("link_xoff_tx.nic", stats.link_xoff_tx),
 126         ICE_PF_STAT("tx_dropped_link_down.nic", stats.tx_dropped_link_down),
 127         ICE_PF_STAT("rx_undersize.nic", stats.rx_undersize),
 128         ICE_PF_STAT("rx_fragments.nic", stats.rx_fragments),
 129         ICE_PF_STAT("rx_oversize.nic", stats.rx_oversize),
 130         ICE_PF_STAT("rx_jabber.nic", stats.rx_jabber),
 131         ICE_PF_STAT("rx_csum_bad.nic", hw_csum_rx_error),
 132         ICE_PF_STAT("rx_length_errors.nic", stats.rx_len_errors),
 133         ICE_PF_STAT("rx_dropped.nic", stats.eth.rx_discards),
 134         ICE_PF_STAT("rx_crc_errors.nic", stats.crc_errors),
 135         ICE_PF_STAT("illegal_bytes.nic", stats.illegal_bytes),
 136         ICE_PF_STAT("mac_local_faults.nic", stats.mac_local_faults),
 137         ICE_PF_STAT("mac_remote_faults.nic", stats.mac_remote_faults),
 138         ICE_PF_STAT("fdir_sb_match.nic", stats.fd_sb_match),
 139         ICE_PF_STAT("fdir_sb_status.nic", stats.fd_sb_status),
 140 };
 141
 142 static const u32 ice_regs_dump_list[] = {
 143         PFGEN_STATE,
 144         PRTGEN_STATUS,
 145         QRX_CTRL(0),
 146         QINT_TQCTL(0),
 147         QINT_RQCTL(0),
 148         PFINT_OICR_ENA,
 149         QRX_ITR(0),
 150 };
 151
 152 struct ice_priv_flag {
 153         char name[ETH_GSTRING_LEN];
 154         u32 bitno;                      /* bit position in pf->flags */
 155 };
 156
 157 #define ICE_PRIV_FLAG(_name, _bitno) { \
 158         .name = _name, \
 159         .bitno = _bitno, \
 160 }
 161
 162 static const struct ice_priv_flag ice_gstrings_priv_flags[] = {
 163         ICE_PRIV_FLAG("link-down-on-close", ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA),
 164         ICE_PRIV_FLAG("fw-lldp-agent", ICE_FLAG_FW_LLDP_AGENT),
 165         ICE_PRIV_FLAG("vf-true-promisc-support",
 166                       ICE_FLAG_VF_TRUE_PROMISC_ENA),
 167         ICE_PRIV_FLAG("mdd-auto-reset-vf", ICE_FLAG_MDD_AUTO_RESET_VF),
 168         ICE_PRIV_FLAG("legacy-rx", ICE_FLAG_LEGACY_RX),
 169 };
 170
 171 #define ICE_PRIV_FLAG_ARRAY_SIZE        ARRAY_SIZE(ice_gstrings_priv_flags)
 172
 173 static void
 174 ice_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
 175 {
 176         struct ice_netdev_priv *np = netdev_priv(netdev);
 177         struct ice_vsi *vsi = np->vsi;
 178         struct ice_pf *pf = vsi->back;
 179         struct ice_hw *hw = &pf->hw;
 180         struct ice_orom_info *orom;
 181         struct ice_nvm_info *nvm;
 182
 183         nvm = &hw->nvm;
 184         orom = &nvm->orom;
 185
 186         strscpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver));
 187
 188         /* Display NVM version (from which the firmware version can be
 189          * determined) which contains more pertinent information.
 190          */
 191         snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
 192                  "%x.%02x 0x%x %d.%d.%d", nvm->major_ver, nvm->minor_ver,
 193                  nvm->eetrack, orom->major, orom->build, orom->patch);
 194
 195         strscpy(drvinfo->bus_info, pci_name(pf->pdev),
 196                 sizeof(drvinfo->bus_info));
 197         drvinfo->n_priv_flags = ICE_PRIV_FLAG_ARRAY_SIZE;
 198 }
 199
 200 static int ice_get_regs_len(struct net_device __always_unused *netdev)
 201 {
 202         return sizeof(ice_regs_dump_list);
 203 }
 204
 205 static void
 206 ice_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p)
 207 {
 208         struct ice_netdev_priv *np = netdev_priv(netdev);
 209         struct ice_pf *pf = np->vsi->back;
 210         struct ice_hw *hw = &pf->hw;
 211         u32 *regs_buf = (u32 *)p;
 212         unsigned int i;
 213
 214         regs->version = 1;
 215
 216         for (i = 0; i < ARRAY_SIZE(ice_regs_dump_list); ++i)
 217                 regs_buf[i] = rd32(hw, ice_regs_dump_list[i]);
 218 }
 219
 220 static u32 ice_get_msglevel(struct net_device *netdev)
 221 {
 222         struct ice_netdev_priv *np = netdev_priv(netdev);
 223         struct ice_pf *pf = np->vsi->back;
 224
 225 #ifndef CONFIG_DYNAMIC_DEBUG
 226         if (pf->hw.debug_mask)
 227                 netdev_info(netdev, "hw debug_mask: 0x%llX\n",
 228                             pf->hw.debug_mask);
 229 #endif /* !CONFIG_DYNAMIC_DEBUG */
 230
 231         return pf->msg_enable;
 232 }
 233
 234 static void ice_set_msglevel(struct net_device *netdev, u32 data)
 235 {
 236         struct ice_netdev_priv *np = netdev_priv(netdev);
 237         struct ice_pf *pf = np->vsi->back;
 238
 239 #ifndef CONFIG_DYNAMIC_DEBUG
 240         if (ICE_DBG_USER & data)
 241                 pf->hw.debug_mask = data;
 242         else
 243                 pf->msg_enable = data;
 244 #else
 245         pf->msg_enable = data;
 246 #endif /* !CONFIG_DYNAMIC_DEBUG */
 247 }
 248
 249 static int ice_get_eeprom_len(struct net_device *netdev)
 250 {
 251         struct ice_netdev_priv *np = netdev_priv(netdev);
 252         struct ice_pf *pf = np->vsi->back;
 253
 254         return (int)pf->hw.nvm.flash_size;
 255 }
 256
 257 static int
 258 ice_get_eeprom(struct net_device *netdev, struct ethtool_eeprom *eeprom,
 259                u8 *bytes)
 260 {
 261         struct ice_netdev_priv *np = netdev_priv(netdev);
 262         struct ice_vsi *vsi = np->vsi;
 263         struct ice_pf *pf = vsi->back;
 264         struct ice_hw *hw = &pf->hw;
 265         enum ice_status status;
 266         struct device *dev;
 267         int ret = 0;
 268         u8 *buf;
 269
 270         dev = ice_pf_to_dev(pf);
 271
 272         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
 273         netdev_dbg(netdev, "GEEPROM cmd 0x%08x, offset 0x%08x, len 0x%08x\n",
 274                    eeprom->cmd, eeprom->offset, eeprom->len);
 275
 276         buf = kzalloc(eeprom->len, GFP_KERNEL);
 277         if (!buf)
 278                 return -ENOMEM;
 279
 280         status = ice_acquire_nvm(hw, ICE_RES_READ);
 281         if (status) {
 282                 dev_err(dev, "ice_acquire_nvm failed, err %s aq_err %s\n",
 283                         ice_stat_str(status),
 284                         ice_aq_str(hw->adminq.sq_last_status));
 285                 ret = -EIO;
 286                 goto out;
 287         }
 288
 289         status = ice_read_flat_nvm(hw, eeprom->offset, &eeprom->len, buf,
 290                                    false);
 291         if (status) {
 292                 dev_err(dev, "ice_read_flat_nvm failed, err %s aq_err %s\n",
 293                         ice_stat_str(status),
 294                         ice_aq_str(hw->adminq.sq_last_status));
 295                 ret = -EIO;
 296                 goto release;
 297         }
 298
 299         memcpy(bytes, buf, eeprom->len);
 300 release:
 301         ice_release_nvm(hw);
 302 out:
 303         kfree(buf);
 304         return ret;
 305 }
 306
 307 /**
 308  * ice_active_vfs - check if there are any active VFs
 309  * @pf: board private structure
 310  *
 311  * Returns true if an active VF is found, otherwise returns false
 312  */
 313 static bool ice_active_vfs(struct ice_pf *pf)
 314 {
 315         unsigned int i;
 316
 317         ice_for_each_vf(pf, i) {
 318                 struct ice_vf *vf = &pf->vf[i];
 319
 320                 if (test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states))
 321                         return true;
 322         }
 323
 324         return false;
 325 }
 326
 327 /**
 328  * ice_link_test - perform a link test on a given net_device
 329  * @netdev: network interface device structure
 330  *
 331  * This function performs one of the self-tests required by ethtool.
 332  * Returns 0 on success, non-zero on failure.
 333  */
 334 static u64 ice_link_test(struct net_device *netdev)
 335 {
 336         struct ice_netdev_priv *np = netdev_priv(netdev);
 337         enum ice_status status;
 338         bool link_up = false;
 339
 340         netdev_info(netdev, "link test\n");
 341         status = ice_get_link_status(np->vsi->port_info, &link_up);
 342         if (status) {
 343                 netdev_err(netdev, "link query error, status = %s\n",
 344                            ice_stat_str(status));
 345                 return 1;
 346         }
 347
 348         if (!link_up)
 349                 return 2;
 350
 351         return 0;
 352 }
 353
 354 /**
 355  * ice_eeprom_test - perform an EEPROM test on a given net_device
 356  * @netdev: network interface device structure
 357  *
 358  * This function performs one of the self-tests required by ethtool.
 359  * Returns 0 on success, non-zero on failure.
 360  */
 361 static u64 ice_eeprom_test(struct net_device *netdev)
 362 {
 363         struct ice_netdev_priv *np = netdev_priv(netdev);
 364         struct ice_pf *pf = np->vsi->back;
 365
 366         netdev_info(netdev, "EEPROM test\n");
 367         return !!(ice_nvm_validate_checksum(&pf->hw));
 368 }
 369
 370 /**
 371  * ice_reg_pattern_test
 372  * @hw: pointer to the HW struct
 373  * @reg: reg to be tested
 374  * @mask: bits to be touched
 375  */
 376 static int ice_reg_pattern_test(struct ice_hw *hw, u32 reg, u32 mask)
 377 {
 378         struct ice_pf *pf = (struct ice_pf *)hw->back;
 379         struct device *dev = ice_pf_to_dev(pf);
 380         static const u32 patterns[] = {
 381                 0x5A5A5A5A, 0xA5A5A5A5,
 382                 0x00000000, 0xFFFFFFFF
 383         };
 384         u32 val, orig_val;
 385         unsigned int i;
 386
 387         orig_val = rd32(hw, reg);
 388         for (i = 0; i < ARRAY_SIZE(patterns); ++i) {
 389                 u32 pattern = patterns[i] & mask;
 390
 391                 wr32(hw, reg, pattern);
 392                 val = rd32(hw, reg);
 393                 if (val == pattern)
 394                         continue;
 395                 dev_err(dev, "%s: reg pattern test failed - reg 0x%08x pat 0x%08x val 0x%08x\n"
 396                         , __func__, reg, pattern, val);
 397                 return 1;
 398         }
 399
 400         wr32(hw, reg, orig_val);
 401         val = rd32(hw, reg);
 402         if (val != orig_val) {
 403                 dev_err(dev, "%s: reg restore test failed - reg 0x%08x orig 0x%08x val 0x%08x\n"
 404                         , __func__, reg, orig_val, val);
 405                 return 1;
 406         }
 407
 408         return 0;
 409 }
 410
 411 /**
 412  * ice_reg_test - perform a register test on a given net_device
 413  * @netdev: network interface device structure
 414  *
 415  * This function performs one of the self-tests required by ethtool.
 416  * Returns 0 on success, non-zero on failure.
 417  */
 418 static u64 ice_reg_test(struct net_device *netdev)
 419 {
 420         struct ice_netdev_priv *np = netdev_priv(netdev);
 421         struct ice_hw *hw = np->vsi->port_info->hw;
 422         u32 int_elements = hw->func_caps.common_cap.num_msix_vectors ?
 423                 hw->func_caps.common_cap.num_msix_vectors - 1 : 1;
 424         struct ice_diag_reg_test_info {
 425                 u32 address;
 426                 u32 mask;
 427                 u32 elem_num;
 428                 u32 elem_size;
 429         } ice_reg_list[] = {
 430                 {GLINT_ITR(0, 0), 0x00000fff, int_elements,
 431                         GLINT_ITR(0, 1) - GLINT_ITR(0, 0)},
 432                 {GLINT_ITR(1, 0), 0x00000fff, int_elements,
 433                         GLINT_ITR(1, 1) - GLINT_ITR(1, 0)},
 434                 {GLINT_ITR(0, 0), 0x00000fff, int_elements,
 435                         GLINT_ITR(2, 1) - GLINT_ITR(2, 0)},
 436                 {GLINT_CTL, 0xffff0001, 1, 0}
 437         };
 438         unsigned int i;
 439
 440         netdev_dbg(netdev, "Register test\n");
 441         for (i = 0; i < ARRAY_SIZE(ice_reg_list); ++i) {
 442                 u32 j;
 443
 444                 for (j = 0; j < ice_reg_list[i].elem_num; ++j) {
 445                         u32 mask = ice_reg_list[i].mask;
 446                         u32 reg = ice_reg_list[i].address +
 447                                 (j * ice_reg_list[i].elem_size);
 448
 449                         /* bail on failure (non-zero return) */
 450                         if (ice_reg_pattern_test(hw, reg, mask))
 451                                 return 1;
 452                 }
 453         }
 454
 455         return 0;
 456 }
 457
 458 /**
 459  * ice_lbtest_prepare_rings - configure Tx/Rx test rings
 460  * @vsi: pointer to the VSI structure
 461  *
 462  * Function configures rings of a VSI for loopback test without
 463  * enabling interrupts or informing the kernel about new queues.
 464  *
 465  * Returns 0 on success, negative on failure.
 466  */
 467 static int ice_lbtest_prepare_rings(struct ice_vsi *vsi)
 468 {
 469         int status;
 470
 471         status = ice_vsi_setup_tx_rings(vsi);
 472         if (status)
 473                 goto err_setup_tx_ring;
 474
 475         status = ice_vsi_setup_rx_rings(vsi);
 476         if (status)
 477                 goto err_setup_rx_ring;
 478
 479         status = ice_vsi_cfg(vsi);
 480         if (status)
 481                 goto err_setup_rx_ring;
 482
 483         status = ice_vsi_start_all_rx_rings(vsi);
 484         if (status)
 485                 goto err_start_rx_ring;
 486
 487         return status;
 488
 489 err_start_rx_ring:
 490         ice_vsi_free_rx_rings(vsi);
 491 err_setup_rx_ring:
 492         ice_vsi_stop_lan_tx_rings(vsi, ICE_NO_RESET, 0);
 493 err_setup_tx_ring:
 494         ice_vsi_free_tx_rings(vsi);
 495
 496         return status;
 497 }
 498
 499 /**
 500  * ice_lbtest_disable_rings - disable Tx/Rx test rings after loopback test
 501  * @vsi: pointer to the VSI structure
 502  *
 503  * Function stops and frees VSI rings after a loopback test.
 504  * Returns 0 on success, negative on failure.
 505  */
 506 static int ice_lbtest_disable_rings(struct ice_vsi *vsi)
 507 {
 508         int status;
 509
 510         status = ice_vsi_stop_lan_tx_rings(vsi, ICE_NO_RESET, 0);
 511         if (status)
 512                 netdev_err(vsi->netdev, "Failed to stop Tx rings, VSI %d error %d\n",
 513                            vsi->vsi_num, status);
 514
 515         status = ice_vsi_stop_all_rx_rings(vsi);
 516         if (status)
 517                 netdev_err(vsi->netdev, "Failed to stop Rx rings, VSI %d error %d\n",
 518                            vsi->vsi_num, status);
 519
 520         ice_vsi_free_tx_rings(vsi);
 521         ice_vsi_free_rx_rings(vsi);
 522
 523         return status;
 524 }
 525
 526 /**
 527  * ice_lbtest_create_frame - create test packet
 528  * @pf: pointer to the PF structure
 529  * @ret_data: allocated frame buffer
 530  * @size: size of the packet data
 531  *
 532  * Function allocates a frame with a test pattern on specific offsets.
 533  * Returns 0 on success, non-zero on failure.
 534  */
 535 static int ice_lbtest_create_frame(struct ice_pf *pf, u8 **ret_data, u16 size)
 536 {
 537         u8 *data;
 538
 539         if (!pf)
 540                 return -EINVAL;
 541
 542         data = devm_kzalloc(ice_pf_to_dev(pf), size, GFP_KERNEL);
 543         if (!data)
 544                 return -ENOMEM;
 545
 546         /* Since the ethernet test frame should always be at least
 547          * 64 bytes long, fill some octets in the payload with test data.
 548          */
 549         memset(data, 0xFF, size);
 550         data[32] = 0xDE;
 551         data[42] = 0xAD;
 552         data[44] = 0xBE;
 553         data[46] = 0xEF;
 554
 555         *ret_data = data;
 556
 557         return 0;
 558 }
 559
 560 /**
 561  * ice_lbtest_check_frame - verify received loopback frame
 562  * @frame: pointer to the raw packet data
 563  *
 564  * Function verifies received test frame with a pattern.
 565  * Returns true if frame matches the pattern, false otherwise.
 566  */
 567 static bool ice_lbtest_check_frame(u8 *frame)
 568 {
 569         /* Validate bytes of a frame under offsets chosen earlier */
 570         if (frame[32] == 0xDE &&
 571             frame[42] == 0xAD &&
 572             frame[44] == 0xBE &&
 573             frame[46] == 0xEF &&
 574             frame[48] == 0xFF)
 575                 return true;
 576
 577         return false;
 578 }
 579
 580 /**
 581  * ice_diag_send - send test frames to the test ring
 582  * @tx_ring: pointer to the transmit ring
 583  * @data: pointer to the raw packet data
 584  * @size: size of the packet to send
 585  *
 586  * Function sends loopback packets on a test Tx ring.
 587  */
 588 static int ice_diag_send(struct ice_ring *tx_ring, u8 *data, u16 size)
 589 {
 590         struct ice_tx_desc *tx_desc;
 591         struct ice_tx_buf *tx_buf;
 592         dma_addr_t dma;
 593         u64 td_cmd;
 594
 595         tx_desc = ICE_TX_DESC(tx_ring, tx_ring->next_to_use);
 596         tx_buf = &tx_ring->tx_buf[tx_ring->next_to_use];
 597
 598         dma = dma_map_single(tx_ring->dev, data, size, DMA_TO_DEVICE);
 599         if (dma_mapping_error(tx_ring->dev, dma))
 600                 return -EINVAL;
 601
 602         tx_desc->buf_addr = cpu_to_le64(dma);
 603
 604         /* These flags are required for a descriptor to be pushed out */
 605         td_cmd = (u64)(ICE_TX_DESC_CMD_EOP | ICE_TX_DESC_CMD_RS);
 606         tx_desc->cmd_type_offset_bsz =
 607                 cpu_to_le64(ICE_TX_DESC_DTYPE_DATA |
 608                             (td_cmd << ICE_TXD_QW1_CMD_S) |
 609                             ((u64)0 << ICE_TXD_QW1_OFFSET_S) |
 610                             ((u64)size << ICE_TXD_QW1_TX_BUF_SZ_S) |
 611                             ((u64)0 << ICE_TXD_QW1_L2TAG1_S));
 612
 613         tx_buf->next_to_watch = tx_desc;
 614
 615         /* Force memory write to complete before letting h/w know
 616          * there are new descriptors to fetch.
 617          */
 618         wmb();
 619
 620         tx_ring->next_to_use++;
 621         if (tx_ring->next_to_use >= tx_ring->count)
 622                 tx_ring->next_to_use = 0;
 623
 624         writel_relaxed(tx_ring->next_to_use, tx_ring->tail);
 625
 626         /* Wait until the packets get transmitted to the receive queue. */
 627         usleep_range(1000, 2000);
 628         dma_unmap_single(tx_ring->dev, dma, size, DMA_TO_DEVICE);
 629
 630         return 0;
 631 }
 632
 633 #define ICE_LB_FRAME_SIZE 64
 634 /**
 635  * ice_lbtest_receive_frames - receive and verify test frames
 636  * @rx_ring: pointer to the receive ring
 637  *
 638  * Function receives loopback packets and verify their correctness.
 639  * Returns number of received valid frames.
 640  */
 641 static int ice_lbtest_receive_frames(struct ice_ring *rx_ring)
 642 {
 643         struct ice_rx_buf *rx_buf;
 644         int valid_frames, i;
 645         u8 *received_buf;
 646
 647         valid_frames = 0;
 648
 649         for (i = 0; i < rx_ring->count; i++) {
 650                 union ice_32b_rx_flex_desc *rx_desc;
 651
 652                 rx_desc = ICE_RX_DESC(rx_ring, i);
 653
 654                 if (!(rx_desc->wb.status_error0 &
 655                     (cpu_to_le16(BIT(ICE_RX_FLEX_DESC_STATUS0_DD_S)) |
 656                      cpu_to_le16(BIT(ICE_RX_FLEX_DESC_STATUS0_EOF_S)))))
 657                         continue;
 658
 659                 rx_buf = &rx_ring->rx_buf[i];
 660                 received_buf = page_address(rx_buf->page) + rx_buf->page_offset;
 661
 662                 if (ice_lbtest_check_frame(received_buf))
 663                         valid_frames++;
 664         }
 665
 666         return valid_frames;
 667 }
 668
 669 /**
 670  * ice_loopback_test - perform a loopback test on a given net_device
 671  * @netdev: network interface device structure
 672  *
 673  * This function performs one of the self-tests required by ethtool.
 674  * Returns 0 on success, non-zero on failure.
 675  */
 676 static u64 ice_loopback_test(struct net_device *netdev)
 677 {
 678         struct ice_netdev_priv *np = netdev_priv(netdev);
 679         struct ice_vsi *orig_vsi = np->vsi, *test_vsi;
 680         struct ice_pf *pf = orig_vsi->back;
 681         struct ice_ring *tx_ring, *rx_ring;
 682         u8 broadcast[ETH_ALEN], ret = 0;
 683         int num_frames, valid_frames;
 684         struct device *dev;
 685         u8 *tx_frame;
 686         int i;
 687
 688         dev = ice_pf_to_dev(pf);
 689         netdev_info(netdev, "loopback test\n");
 690
 691         test_vsi = ice_lb_vsi_setup(pf, pf->hw.port_info);
 692         if (!test_vsi) {
 693                 netdev_err(netdev, "Failed to create a VSI for the loopback test\n");
 694                 return 1;
 695         }
 696
 697         test_vsi->netdev = netdev;
 698         tx_ring = test_vsi->tx_rings[0];
 699         rx_ring = test_vsi->rx_rings[0];
 700
 701         if (ice_lbtest_prepare_rings(test_vsi)) {
 702                 ret = 2;
 703                 goto lbtest_vsi_close;
 704         }
 705
 706         if (ice_alloc_rx_bufs(rx_ring, rx_ring->count)) {
 707                 ret = 3;
 708                 goto lbtest_rings_dis;
 709         }
 710
 711         /* Enable MAC loopback in firmware */
 712         if (ice_aq_set_mac_loopback(&pf->hw, true, NULL)) {
 713                 ret = 4;
 714                 goto lbtest_mac_dis;
 715         }
 716
 717         /* Test VSI needs to receive broadcast packets */
 718         eth_broadcast_addr(broadcast);
 719         if (ice_fltr_add_mac(test_vsi, broadcast, ICE_FWD_TO_VSI)) {
 720                 ret = 5;
 721                 goto lbtest_mac_dis;
 722         }
 723
 724         if (ice_lbtest_create_frame(pf, &tx_frame, ICE_LB_FRAME_SIZE)) {
 725                 ret = 7;
 726                 goto remove_mac_filters;
 727         }
 728
 729         num_frames = min_t(int, tx_ring->count, 32);
 730         for (i = 0; i < num_frames; i++) {
 731                 if (ice_diag_send(tx_ring, tx_frame, ICE_LB_FRAME_SIZE)) {
 732                         ret = 8;
 733                         goto lbtest_free_frame;
 734                 }
 735         }
 736
 737         valid_frames = ice_lbtest_receive_frames(rx_ring);
 738         if (!valid_frames)
 739                 ret = 9;
 740         else if (valid_frames != num_frames)
 741                 ret = 10;
 742
 743 lbtest_free_frame:
 744         devm_kfree(dev, tx_frame);
 745 remove_mac_filters:
 746         if (ice_fltr_remove_mac(test_vsi, broadcast, ICE_FWD_TO_VSI))
 747                 netdev_err(netdev, "Could not remove MAC filter for the test VSI\n");
 748 lbtest_mac_dis:
 749         /* Disable MAC loopback after the test is completed. */
 750         if (ice_aq_set_mac_loopback(&pf->hw, false, NULL))
 751                 netdev_err(netdev, "Could not disable MAC loopback\n");
 752 lbtest_rings_dis:
 753         if (ice_lbtest_disable_rings(test_vsi))
 754                 netdev_err(netdev, "Could not disable test rings\n");
 755 lbtest_vsi_close:
 756         test_vsi->netdev = NULL;
 757         if (ice_vsi_release(test_vsi))
 758                 netdev_err(netdev, "Failed to remove the test VSI\n");
 759
 760         return ret;
 761 }
 762
 763 /**
 764  * ice_intr_test - perform an interrupt test on a given net_device
 765  * @netdev: network interface device structure
 766  *
 767  * This function performs one of the self-tests required by ethtool.
 768  * Returns 0 on success, non-zero on failure.
 769  */
 770 static u64 ice_intr_test(struct net_device *netdev)
 771 {
 772         struct ice_netdev_priv *np = netdev_priv(netdev);
 773         struct ice_pf *pf = np->vsi->back;
 774         u16 swic_old = pf->sw_int_count;
 775
 776         netdev_info(netdev, "interrupt test\n");
 777
 778         wr32(&pf->hw, GLINT_DYN_CTL(pf->oicr_idx),
 779              GLINT_DYN_CTL_SW_ITR_INDX_M |
 780              GLINT_DYN_CTL_INTENA_MSK_M |
 781              GLINT_DYN_CTL_SWINT_TRIG_M);
 782
 783         usleep_range(1000, 2000);
 784         return (swic_old == pf->sw_int_count);
 785 }
 786
 787 /**
 788  * ice_self_test - handler function for performing a self-test by ethtool
 789  * @netdev: network interface device structure
 790  * @eth_test: ethtool_test structure
 791  * @data: required by ethtool.self_test
 792  *
 793  * This function is called after invoking 'ethtool -t devname' command where
 794  * devname is the name of the network device on which ethtool should operate.
 795  * It performs a set of self-tests to check if a device works properly.
 796  */
 797 static void
 798 ice_self_test(struct net_device *netdev, struct ethtool_test *eth_test,
 799               u64 *data)
 800 {
 801         struct ice_netdev_priv *np = netdev_priv(netdev);
 802         bool if_running = netif_running(netdev);
 803         struct ice_pf *pf = np->vsi->back;
 804         struct device *dev;
 805
 806         dev = ice_pf_to_dev(pf);
 807
 808         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
 809                 netdev_info(netdev, "offline testing starting\n");
 810
 811                 set_bit(__ICE_TESTING, pf->state);
 812
 813                 if (ice_active_vfs(pf)) {
 814                         dev_warn(dev, "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");
 815                         data[ICE_ETH_TEST_REG] = 1;
 816                         data[ICE_ETH_TEST_EEPROM] = 1;
 817                         data[ICE_ETH_TEST_INTR] = 1;
 818                         data[ICE_ETH_TEST_LOOP] = 1;
 819                         data[ICE_ETH_TEST_LINK] = 1;
 820                         eth_test->flags |= ETH_TEST_FL_FAILED;
 821                         clear_bit(__ICE_TESTING, pf->state);
 822                         goto skip_ol_tests;
 823                 }
 824                 /* If the device is online then take it offline */
 825                 if (if_running)
 826                         /* indicate we're in test mode */
 827                         ice_stop(netdev);
 828
 829                 data[ICE_ETH_TEST_LINK] = ice_link_test(netdev);
 830                 data[ICE_ETH_TEST_EEPROM] = ice_eeprom_test(netdev);
 831                 data[ICE_ETH_TEST_INTR] = ice_intr_test(netdev);
 832                 data[ICE_ETH_TEST_LOOP] = ice_loopback_test(netdev);
 833                 data[ICE_ETH_TEST_REG] = ice_reg_test(netdev);
 834
 835                 if (data[ICE_ETH_TEST_LINK] ||
 836                     data[ICE_ETH_TEST_EEPROM] ||
 837                     data[ICE_ETH_TEST_LOOP] ||
 838                     data[ICE_ETH_TEST_INTR] ||
 839                     data[ICE_ETH_TEST_REG])
 840                         eth_test->flags |= ETH_TEST_FL_FAILED;
 841
 842                 clear_bit(__ICE_TESTING, pf->state);
 843
 844                 if (if_running) {
 845                         int status = ice_open(netdev);
 846
 847                         if (status) {
 848                                 dev_err(dev, "Could not open device %s, err %d\n",
 849                                         pf->int_name, status);
 850                         }
 851                 }
 852         } else {
 853                 /* Online tests */
 854                 netdev_info(netdev, "online testing starting\n");
 855
 856                 data[ICE_ETH_TEST_LINK] = ice_link_test(netdev);
 857                 if (data[ICE_ETH_TEST_LINK])
 858                         eth_test->flags |= ETH_TEST_FL_FAILED;
 859
 860                 /* Offline only tests, not run in online; pass by default */
 861                 data[ICE_ETH_TEST_REG] = 0;
 862                 data[ICE_ETH_TEST_EEPROM] = 0;
 863                 data[ICE_ETH_TEST_INTR] = 0;
 864                 data[ICE_ETH_TEST_LOOP] = 0;
 865         }
 866
 867 skip_ol_tests:
 868         netdev_info(netdev, "testing finished\n");
 869 }
 870
 871 static void ice_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
 872 {
 873         struct ice_netdev_priv *np = netdev_priv(netdev);
 874         struct ice_vsi *vsi = np->vsi;
 875         char *p = (char *)data;
 876         unsigned int i;
 877
 878         switch (stringset) {
 879         case ETH_SS_STATS:
 880                 for (i = 0; i < ICE_VSI_STATS_LEN; i++) {
 881                         snprintf(p, ETH_GSTRING_LEN, "%s",
 882                                  ice_gstrings_vsi_stats[i].stat_string);
 883                         p += ETH_GSTRING_LEN;
 884                 }
 885
 886                 ice_for_each_alloc_txq(vsi, i) {
 887                         snprintf(p, ETH_GSTRING_LEN,
 888                                  "tx_queue_%u_packets", i);
 889                         p += ETH_GSTRING_LEN;
 890                         snprintf(p, ETH_GSTRING_LEN, "tx_queue_%u_bytes", i);
 891                         p += ETH_GSTRING_LEN;
 892                 }
 893
 894                 ice_for_each_alloc_rxq(vsi, i) {
 895                         snprintf(p, ETH_GSTRING_LEN,
 896                                  "rx_queue_%u_packets", i);
 897                         p += ETH_GSTRING_LEN;
 898                         snprintf(p, ETH_GSTRING_LEN, "rx_queue_%u_bytes", i);
 899                         p += ETH_GSTRING_LEN;
 900                 }
 901
 902                 if (vsi->type != ICE_VSI_PF)
 903                         return;
 904
 905                 for (i = 0; i < ICE_PF_STATS_LEN; i++) {
 906                         snprintf(p, ETH_GSTRING_LEN, "%s",
 907                                  ice_gstrings_pf_stats[i].stat_string);
 908                         p += ETH_GSTRING_LEN;
 909                 }
 910
 911                 for (i = 0; i < ICE_MAX_USER_PRIORITY; i++) {
 912                         snprintf(p, ETH_GSTRING_LEN,
 913                                  "tx_priority_%u_xon.nic", i);
 914                         p += ETH_GSTRING_LEN;
 915                         snprintf(p, ETH_GSTRING_LEN,
 916                                  "tx_priority_%u_xoff.nic", i);
 917                         p += ETH_GSTRING_LEN;
 918                 }
 919                 for (i = 0; i < ICE_MAX_USER_PRIORITY; i++) {
 920                         snprintf(p, ETH_GSTRING_LEN,
 921                                  "rx_priority_%u_xon.nic", i);
 922                         p += ETH_GSTRING_LEN;
 923                         snprintf(p, ETH_GSTRING_LEN,
 924                                  "rx_priority_%u_xoff.nic", i);
 925                         p += ETH_GSTRING_LEN;
 926                 }
 927                 break;
 928         case ETH_SS_TEST:
 929                 memcpy(data, ice_gstrings_test, ICE_TEST_LEN * ETH_GSTRING_LEN);
 930                 break;
 931         case ETH_SS_PRIV_FLAGS:
 932                 for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++) {
 933                         snprintf(p, ETH_GSTRING_LEN, "%s",
 934                                  ice_gstrings_priv_flags[i].name);
 935                         p += ETH_GSTRING_LEN;
 936                 }
 937                 break;
 938         default:
 939                 break;
 940         }
 941 }
 942
 943 static int
 944 ice_set_phys_id(struct net_device *netdev, enum ethtool_phys_id_state state)
 945 {
 946         struct ice_netdev_priv *np = netdev_priv(netdev);
 947         bool led_active;
 948
 949         switch (state) {
 950         case ETHTOOL_ID_ACTIVE:
 951                 led_active = true;
 952                 break;
 953         case ETHTOOL_ID_INACTIVE:
 954                 led_active = false;
 955                 break;
 956         default:
 957                 return -EINVAL;
 958         }
 959
 960         if (ice_aq_set_port_id_led(np->vsi->port_info, !led_active, NULL))
 961                 return -EIO;
 962
 963         return 0;
 964 }
 965
 966 /**
 967  * ice_set_fec_cfg - Set link FEC options
 968  * @netdev: network interface device structure
 969  * @req_fec: FEC mode to configure
 970  */
 971 static int ice_set_fec_cfg(struct net_device *netdev, enum ice_fec_mode req_fec)
 972 {
 973         struct ice_netdev_priv *np = netdev_priv(netdev);
 974         struct ice_aqc_set_phy_cfg_data config = { 0 };
 975         struct ice_vsi *vsi = np->vsi;
 976         struct ice_port_info *pi;
 977
 978         pi = vsi->port_info;
 979         if (!pi)
 980                 return -EOPNOTSUPP;
 981
 982         /* Changing the FEC parameters is not supported if not the PF VSI */
 983         if (vsi->type != ICE_VSI_PF) {
 984                 netdev_info(netdev, "Changing FEC parameters only supported for PF VSI\n");
 985                 return -EOPNOTSUPP;
 986         }
 987
 988         /* Proceed only if requesting different FEC mode */
 989         if (pi->phy.curr_user_fec_req == req_fec)
 990                 return 0;
 991
 992         /* Copy the current user PHY configuration. The current user PHY
 993          * configuration is initialized during probe from PHY capabilities
 994          * software mode, and updated on set PHY configuration.
 995          */
 996         memcpy(&config, &pi->phy.curr_user_phy_cfg, sizeof(config));
 997
 998         ice_cfg_phy_fec(pi, &config, req_fec);
 999         config.caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
1000
1001         if (ice_aq_set_phy_cfg(pi->hw, pi, &config, NULL))
1002                 return -EAGAIN;
1003
1004         /* Save requested FEC config */
1005         pi->phy.curr_user_fec_req = req_fec;
1006
1007         return 0;
1008 }
1009
1010 /**
1011  * ice_set_fecparam - Set FEC link options
1012  * @netdev: network interface device structure
1013  * @fecparam: Ethtool structure to retrieve FEC parameters
1014  */
1015 static int
1016 ice_set_fecparam(struct net_device *netdev, struct ethtool_fecparam *fecparam)
1017 {
1018         struct ice_netdev_priv *np = netdev_priv(netdev);
1019         struct ice_vsi *vsi = np->vsi;
1020         enum ice_fec_mode fec;
1021
1022         switch (fecparam->fec) {
1023         case ETHTOOL_FEC_AUTO:
1024                 fec = ICE_FEC_AUTO;
1025                 break;
1026         case ETHTOOL_FEC_RS:
1027                 fec = ICE_FEC_RS;
1028                 break;
1029         case ETHTOOL_FEC_BASER:
1030                 fec = ICE_FEC_BASER;
1031                 break;
1032         case ETHTOOL_FEC_OFF:
1033         case ETHTOOL_FEC_NONE:
1034                 fec = ICE_FEC_NONE;
1035                 break;
1036         default:
1037                 dev_warn(ice_pf_to_dev(vsi->back), "Unsupported FEC mode: %d\n",
1038                          fecparam->fec);
1039                 return -EINVAL;
1040         }
1041
1042         return ice_set_fec_cfg(netdev, fec);
1043 }
1044
1045 /**
1046  * ice_get_fecparam - Get link FEC options
1047  * @netdev: network interface device structure
1048  * @fecparam: Ethtool structure to retrieve FEC parameters
1049  */
1050 static int
1051 ice_get_fecparam(struct net_device *netdev, struct ethtool_fecparam *fecparam)
1052 {
1053         struct ice_netdev_priv *np = netdev_priv(netdev);
1054         struct ice_aqc_get_phy_caps_data *caps;
1055         struct ice_link_status *link_info;
1056         struct ice_vsi *vsi = np->vsi;
1057         struct ice_port_info *pi;
1058         enum ice_status status;
1059         int err = 0;
1060
1061         pi = vsi->port_info;
1062
1063         if (!pi)
1064                 return -EOPNOTSUPP;
1065         link_info = &pi->phy.link_info;
1066
1067         /* Set FEC mode based on negotiated link info */
1068         switch (link_info->fec_info) {
1069         case ICE_AQ_LINK_25G_KR_FEC_EN:
1070                 fecparam->active_fec = ETHTOOL_FEC_BASER;
1071                 break;
1072         case ICE_AQ_LINK_25G_RS_528_FEC_EN:
1073         case ICE_AQ_LINK_25G_RS_544_FEC_EN:
1074                 fecparam->active_fec = ETHTOOL_FEC_RS;
1075                 break;
1076         default:
1077                 fecparam->active_fec = ETHTOOL_FEC_OFF;
1078                 break;
1079         }
1080
1081         caps = kzalloc(sizeof(*caps), GFP_KERNEL);
1082         if (!caps)
1083                 return -ENOMEM;
1084
1085         status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_MEDIA,
1086                                      caps, NULL);
1087         if (status) {
1088                 err = -EAGAIN;
1089                 goto done;
1090         }
1091
1092         /* Set supported/configured FEC modes based on PHY capability */
1093         if (caps->caps & ICE_AQC_PHY_EN_AUTO_FEC)
1094                 fecparam->fec |= ETHTOOL_FEC_AUTO;
1095         if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_EN ||
1096             caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_REQ ||
1097             caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_CLAUSE74_EN ||
1098             caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_REQ)
1099                 fecparam->fec |= ETHTOOL_FEC_BASER;
1100         if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_528_REQ ||
1101             caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_544_REQ ||
1102             caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_CLAUSE91_EN)
1103                 fecparam->fec |= ETHTOOL_FEC_RS;
1104         if (caps->link_fec_options == 0)
1105                 fecparam->fec |= ETHTOOL_FEC_OFF;
1106
1107 done:
1108         kfree(caps);
1109         return err;
1110 }
1111
1112 /**
1113  * ice_nway_reset - restart autonegotiation
1114  * @netdev: network interface device structure
1115  */
1116 static int ice_nway_reset(struct net_device *netdev)
1117 {
1118         struct ice_netdev_priv *np = netdev_priv(netdev);
1119         struct ice_vsi *vsi = np->vsi;
1120         struct ice_port_info *pi;
1121         enum ice_status status;
1122
1123         pi = vsi->port_info;
1124         /* If VSI state is up, then restart autoneg with link up */
1125         if (!test_bit(__ICE_DOWN, vsi->back->state))
1126                 status = ice_aq_set_link_restart_an(pi, true, NULL);
1127         else
1128                 status = ice_aq_set_link_restart_an(pi, false, NULL);
1129
1130         if (status) {
1131                 netdev_info(netdev, "link restart failed, err %s aq_err %s\n",
1132                             ice_stat_str(status),
1133                             ice_aq_str(pi->hw->adminq.sq_last_status));
1134                 return -EIO;
1135         }
1136
1137         return 0;
1138 }
1139
1140 /**
1141  * ice_get_priv_flags - report device private flags
1142  * @netdev: network interface device structure
1143  *
1144  * The get string set count and the string set should be matched for each
1145  * flag returned.  Add new strings for each flag to the ice_gstrings_priv_flags
1146  * array.
1147  *
1148  * Returns a u32 bitmap of flags.
1149  */
1150 static u32 ice_get_priv_flags(struct net_device *netdev)
1151 {
1152         struct ice_netdev_priv *np = netdev_priv(netdev);
1153         struct ice_vsi *vsi = np->vsi;
1154         struct ice_pf *pf = vsi->back;
1155         u32 i, ret_flags = 0;
1156
1157         for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++) {
1158                 const struct ice_priv_flag *priv_flag;
1159
1160                 priv_flag = &ice_gstrings_priv_flags[i];
1161
1162                 if (test_bit(priv_flag->bitno, pf->flags))
1163                         ret_flags |= BIT(i);
1164         }
1165
1166         return ret_flags;
1167 }
1168
1169 /**
1170  * ice_set_priv_flags - set private flags
1171  * @netdev: network interface device structure
1172  * @flags: bit flags to be set
1173  */
1174 static int ice_set_priv_flags(struct net_device *netdev, u32 flags)
1175 {
1176         struct ice_netdev_priv *np = netdev_priv(netdev);
1177         DECLARE_BITMAP(change_flags, ICE_PF_FLAGS_NBITS);
1178         DECLARE_BITMAP(orig_flags, ICE_PF_FLAGS_NBITS);
1179         struct ice_vsi *vsi = np->vsi;
1180         struct ice_pf *pf = vsi->back;
1181         struct device *dev;
1182         int ret = 0;
1183         u32 i;
1184
1185         if (flags > BIT(ICE_PRIV_FLAG_ARRAY_SIZE))
1186                 return -EINVAL;
1187
1188         dev = ice_pf_to_dev(pf);
1189         set_bit(ICE_FLAG_ETHTOOL_CTXT, pf->flags);
1190
1191         bitmap_copy(orig_flags, pf->flags, ICE_PF_FLAGS_NBITS);
1192         for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++) {
1193                 const struct ice_priv_flag *priv_flag;
1194
1195                 priv_flag = &ice_gstrings_priv_flags[i];
1196
1197                 if (flags & BIT(i))
1198                         set_bit(priv_flag->bitno, pf->flags);
1199                 else
1200                         clear_bit(priv_flag->bitno, pf->flags);
1201         }
1202
1203         bitmap_xor(change_flags, pf->flags, orig_flags, ICE_PF_FLAGS_NBITS);
1204
1205         /* Do not allow change to link-down-on-close when Total Port Shutdown
1206          * is enabled.
1207          */
1208         if (test_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, change_flags) &&
1209             test_bit(ICE_FLAG_TOTAL_PORT_SHUTDOWN_ENA, pf->flags)) {
1210                 dev_err(dev, "Setting link-down-on-close not supported on this port\n");
1211                 set_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, pf->flags);
1212                 ret = -EINVAL;
1213                 goto ethtool_exit;
1214         }
1215
1216         if (test_bit(ICE_FLAG_FW_LLDP_AGENT, change_flags)) {
1217                 if (!test_bit(ICE_FLAG_FW_LLDP_AGENT, pf->flags)) {
1218                         enum ice_status status;
1219
1220                         /* Disable FW LLDP engine */
1221                         status = ice_cfg_lldp_mib_change(&pf->hw, false);
1222
1223                         /* If unregistering for LLDP events fails, this is
1224                          * not an error state, as there shouldn't be any
1225                          * events to respond to.
1226                          */
1227                         if (status)
1228                                 dev_info(dev, "Failed to unreg for LLDP events\n");
1229
1230                         /* The AQ call to stop the FW LLDP agent will generate
1231                          * an error if the agent is already stopped.
1232                          */
1233                         status = ice_aq_stop_lldp(&pf->hw, true, true, NULL);
1234                         if (status)
1235                                 dev_warn(dev, "Fail to stop LLDP agent\n");
1236                         /* Use case for having the FW LLDP agent stopped
1237                          * will likely not need DCB, so failure to init is
1238                          * not a concern of ethtool
1239                          */
1240                         status = ice_init_pf_dcb(pf, true);
1241                         if (status)
1242                                 dev_warn(dev, "Fail to init DCB\n");
1243
1244                         pf->dcbx_cap &= ~DCB_CAP_DCBX_LLD_MANAGED;
1245                         pf->dcbx_cap |= DCB_CAP_DCBX_HOST;
1246                 } else {
1247                         enum ice_status status;
1248                         bool dcbx_agent_status;
1249
1250                         /* AQ command to start FW LLDP agent will return an
1251                          * error if the agent is already started
1252                          */
1253                         status = ice_aq_start_lldp(&pf->hw, true, NULL);
1254                         if (status)
1255                                 dev_warn(dev, "Fail to start LLDP Agent\n");
1256
1257                         /* AQ command to start FW DCBX agent will fail if
1258                          * the agent is already started
1259                          */
1260                         status = ice_aq_start_stop_dcbx(&pf->hw, true,
1261                                                         &dcbx_agent_status,
1262                                                         NULL);
1263                         if (status)
1264                                 dev_dbg(dev, "Failed to start FW DCBX\n");
1265
1266                         dev_info(dev, "FW DCBX agent is %s\n",
1267                                  dcbx_agent_status ? "ACTIVE" : "DISABLED");
1268
1269                         /* Failure to configure MIB change or init DCB is not
1270                          * relevant to ethtool.  Print notification that
1271                          * registration/init failed but do not return error
1272                          * state to ethtool
1273                          */
1274                         status = ice_init_pf_dcb(pf, true);
1275                         if (status)
1276                                 dev_dbg(dev, "Fail to init DCB\n");
1277
1278                         /* Remove rule to direct LLDP packets to default VSI.
1279                          * The FW LLDP engine will now be consuming them.
1280                          */
1281                         ice_cfg_sw_lldp(vsi, false, false);
1282
1283                         /* Register for MIB change events */
1284                         status = ice_cfg_lldp_mib_change(&pf->hw, true);
1285                         if (status)
1286                                 dev_dbg(dev, "Fail to enable MIB change events\n");
1287
1288                         pf->dcbx_cap &= ~DCB_CAP_DCBX_HOST;
1289                         pf->dcbx_cap |= DCB_CAP_DCBX_LLD_MANAGED;
1290
1291                         ice_nway_reset(netdev);
1292                 }
1293         }
1294         if (test_bit(ICE_FLAG_LEGACY_RX, change_flags)) {
1295                 /* down and up VSI so that changes of Rx cfg are reflected. */
1296                 ice_down(vsi);
1297                 ice_up(vsi);
1298         }
1299         /* don't allow modification of this flag when a single VF is in
1300          * promiscuous mode because it's not supported
1301          */
1302         if (test_bit(ICE_FLAG_VF_TRUE_PROMISC_ENA, change_flags) &&
1303             ice_is_any_vf_in_promisc(pf)) {
1304                 dev_err(dev, "Changing vf-true-promisc-support flag while VF(s) are in promiscuous mode not supported\n");
1305                 /* toggle bit back to previous state */
1306                 change_bit(ICE_FLAG_VF_TRUE_PROMISC_ENA, pf->flags);
1307                 ret = -EAGAIN;
1308         }
1309 ethtool_exit:
1310         clear_bit(ICE_FLAG_ETHTOOL_CTXT, pf->flags);
1311         return ret;
1312 }
1313
1314 static int ice_get_sset_count(struct net_device *netdev, int sset)
1315 {
1316         switch (sset) {
1317         case ETH_SS_STATS:
1318                 /* The number (and order) of strings reported *must* remain
1319                  * constant for a given netdevice. This function must not
1320                  * report a different number based on run time parameters
1321                  * (such as the number of queues in use, or the setting of
1322                  * a private ethtool flag). This is due to the nature of the
1323                  * ethtool stats API.
1324                  *
1325                  * Userspace programs such as ethtool must make 3 separate
1326                  * ioctl requests, one for size, one for the strings, and
1327                  * finally one for the stats. Since these cross into
1328                  * userspace, changes to the number or size could result in
1329                  * undefined memory access or incorrect string<->value
1330                  * correlations for statistics.
1331                  *
1332                  * Even if it appears to be safe, changes to the size or
1333                  * order of strings will suffer from race conditions and are
1334                  * not safe.
1335                  */
1336                 return ICE_ALL_STATS_LEN(netdev);
1337         case ETH_SS_TEST:
1338                 return ICE_TEST_LEN;
1339         case ETH_SS_PRIV_FLAGS:
1340                 return ICE_PRIV_FLAG_ARRAY_SIZE;
1341         default:
1342                 return -EOPNOTSUPP;
1343         }
1344 }
1345
1346 static void
1347 ice_get_ethtool_stats(struct net_device *netdev,
1348                       struct ethtool_stats __always_unused *stats, u64 *data)
1349 {
1350         struct ice_netdev_priv *np = netdev_priv(netdev);
1351         struct ice_vsi *vsi = np->vsi;
1352         struct ice_pf *pf = vsi->back;
1353         struct ice_ring *ring;
1354         unsigned int j;
1355         int i = 0;
1356         char *p;
1357
1358         ice_update_pf_stats(pf);
1359         ice_update_vsi_stats(vsi);
1360
1361         for (j = 0; j < ICE_VSI_STATS_LEN; j++) {
1362                 p = (char *)vsi + ice_gstrings_vsi_stats[j].stat_offset;
1363                 data[i++] = (ice_gstrings_vsi_stats[j].sizeof_stat ==
1364                              sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1365         }
1366
1367         /* populate per queue stats */
1368         rcu_read_lock();
1369
1370         ice_for_each_alloc_txq(vsi, j) {
1371                 ring = READ_ONCE(vsi->tx_rings[j]);
1372                 if (ring) {
1373                         data[i++] = ring->stats.pkts;
1374                         data[i++] = ring->stats.bytes;
1375                 } else {
1376                         data[i++] = 0;
1377                         data[i++] = 0;
1378                 }
1379         }
1380
1381         ice_for_each_alloc_rxq(vsi, j) {
1382                 ring = READ_ONCE(vsi->rx_rings[j]);
1383                 if (ring) {
1384                         data[i++] = ring->stats.pkts;
1385                         data[i++] = ring->stats.bytes;
1386                 } else {
1387                         data[i++] = 0;
1388                         data[i++] = 0;
1389                 }
1390         }
1391
1392         rcu_read_unlock();
1393
1394         if (vsi->type != ICE_VSI_PF)
1395                 return;
1396
1397         for (j = 0; j < ICE_PF_STATS_LEN; j++) {
1398                 p = (char *)pf + ice_gstrings_pf_stats[j].stat_offset;
1399                 data[i++] = (ice_gstrings_pf_stats[j].sizeof_stat ==
1400                              sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1401         }
1402
1403         for (j = 0; j < ICE_MAX_USER_PRIORITY; j++) {
1404                 data[i++] = pf->stats.priority_xon_tx[j];
1405                 data[i++] = pf->stats.priority_xoff_tx[j];
1406         }
1407
1408         for (j = 0; j < ICE_MAX_USER_PRIORITY; j++) {
1409                 data[i++] = pf->stats.priority_xon_rx[j];
1410                 data[i++] = pf->stats.priority_xoff_rx[j];
1411         }
1412 }
1413
1414 #define ICE_PHY_TYPE_LOW_MASK_MIN_1G    (ICE_PHY_TYPE_LOW_100BASE_TX | \
1415                                          ICE_PHY_TYPE_LOW_100M_SGMII)
1416
1417 #define ICE_PHY_TYPE_LOW_MASK_MIN_25G   (ICE_PHY_TYPE_LOW_MASK_MIN_1G | \
1418                                          ICE_PHY_TYPE_LOW_1000BASE_T | \
1419                                          ICE_PHY_TYPE_LOW_1000BASE_SX | \
1420                                          ICE_PHY_TYPE_LOW_1000BASE_LX | \
1421                                          ICE_PHY_TYPE_LOW_1000BASE_KX | \
1422                                          ICE_PHY_TYPE_LOW_1G_SGMII | \
1423                                          ICE_PHY_TYPE_LOW_2500BASE_T | \
1424                                          ICE_PHY_TYPE_LOW_2500BASE_X | \
1425                                          ICE_PHY_TYPE_LOW_2500BASE_KX | \
1426                                          ICE_PHY_TYPE_LOW_5GBASE_T | \
1427                                          ICE_PHY_TYPE_LOW_5GBASE_KR | \
1428                                          ICE_PHY_TYPE_LOW_10GBASE_T | \
1429                                          ICE_PHY_TYPE_LOW_10G_SFI_DA | \
1430                                          ICE_PHY_TYPE_LOW_10GBASE_SR | \
1431                                          ICE_PHY_TYPE_LOW_10GBASE_LR | \
1432                                          ICE_PHY_TYPE_LOW_10GBASE_KR_CR1 | \
1433                                          ICE_PHY_TYPE_LOW_10G_SFI_AOC_ACC | \
1434                                          ICE_PHY_TYPE_LOW_10G_SFI_C2C)
1435
1436 #define ICE_PHY_TYPE_LOW_MASK_100G      (ICE_PHY_TYPE_LOW_100GBASE_CR4 | \
1437                                          ICE_PHY_TYPE_LOW_100GBASE_SR4 | \
1438                                          ICE_PHY_TYPE_LOW_100GBASE_LR4 | \
1439                                          ICE_PHY_TYPE_LOW_100GBASE_KR4 | \
1440                                          ICE_PHY_TYPE_LOW_100G_CAUI4_AOC_ACC | \
1441                                          ICE_PHY_TYPE_LOW_100G_CAUI4 | \
1442                                          ICE_PHY_TYPE_LOW_100G_AUI4_AOC_ACC | \
1443                                          ICE_PHY_TYPE_LOW_100G_AUI4 | \
1444                                          ICE_PHY_TYPE_LOW_100GBASE_CR_PAM4 | \
1445                                          ICE_PHY_TYPE_LOW_100GBASE_KR_PAM4 | \
1446                                          ICE_PHY_TYPE_LOW_100GBASE_CP2 | \
1447                                          ICE_PHY_TYPE_LOW_100GBASE_SR2 | \
1448                                          ICE_PHY_TYPE_LOW_100GBASE_DR)
1449
1450 #define ICE_PHY_TYPE_HIGH_MASK_100G     (ICE_PHY_TYPE_HIGH_100GBASE_KR2_PAM4 | \
1451                                          ICE_PHY_TYPE_HIGH_100G_CAUI2_AOC_ACC |\
1452                                          ICE_PHY_TYPE_HIGH_100G_CAUI2 | \
1453                                          ICE_PHY_TYPE_HIGH_100G_AUI2_AOC_ACC | \
1454                                          ICE_PHY_TYPE_HIGH_100G_AUI2)
1455
1456 /**
1457  * ice_mask_min_supported_speeds
1458  * @phy_types_high: PHY type high
1459  * @phy_types_low: PHY type low to apply minimum supported speeds mask
1460  *
1461  * Apply minimum supported speeds mask to PHY type low. These are the speeds
1462  * for ethtool supported link mode.
1463  */
1464 static
1465 void ice_mask_min_supported_speeds(u64 phy_types_high, u64 *phy_types_low)
1466 {
1467         /* if QSFP connection with 100G speed, minimum supported speed is 25G */
1468         if (*phy_types_low & ICE_PHY_TYPE_LOW_MASK_100G ||
1469             phy_types_high & ICE_PHY_TYPE_HIGH_MASK_100G)
1470                 *phy_types_low &= ~ICE_PHY_TYPE_LOW_MASK_MIN_25G;
1471         else
1472                 *phy_types_low &= ~ICE_PHY_TYPE_LOW_MASK_MIN_1G;
1473 }
1474
1475 #define ice_ethtool_advertise_link_mode(aq_link_speed, ethtool_link_mode)    \
1476         do {                                                                 \
1477                 if (req_speeds & (aq_link_speed) ||                          \
1478                     (!req_speeds &&                                          \
1479                      (adv_phy_type_lo & phy_type_mask_lo ||                  \
1480                       adv_phy_type_hi & phy_type_mask_hi)))                  \
1481                         ethtool_link_ksettings_add_link_mode(ks, advertising,\
1482                                                         ethtool_link_mode);  \
1483         } while (0)
1484
1485 /**
1486  * ice_phy_type_to_ethtool - convert the phy_types to ethtool link modes
1487  * @netdev: network interface device structure
1488  * @ks: ethtool link ksettings struct to fill out
1489  */
1490 static void
1491 ice_phy_type_to_ethtool(struct net_device *netdev,
1492                         struct ethtool_link_ksettings *ks)
1493 {
1494         struct ice_netdev_priv *np = netdev_priv(netdev);
1495         struct ice_vsi *vsi = np->vsi;
1496         struct ice_pf *pf = vsi->back;
1497         u64 phy_type_mask_lo = 0;
1498         u64 phy_type_mask_hi = 0;
1499         u64 adv_phy_type_lo = 0;
1500         u64 adv_phy_type_hi = 0;
1501         u64 phy_types_high = 0;
1502         u64 phy_types_low = 0;
1503         u16 req_speeds;
1504
1505         req_speeds = vsi->port_info->phy.link_info.req_speeds;
1506
1507         /* Check if lenient mode is supported and enabled, or in strict mode.
1508          *
1509          * In lenient mode the Supported link modes are the PHY types without
1510          * media. The Advertising link mode is either 1. the user requested
1511          * speed, 2. the override PHY mask, or 3. the PHY types with media.
1512          *
1513          * In strict mode Supported link mode are the PHY type with media,
1514          * and Advertising link modes are the media PHY type or the speed
1515          * requested by user.
1516          */
1517         if (test_bit(ICE_FLAG_LINK_LENIENT_MODE_ENA, pf->flags)) {
1518                 struct ice_link_default_override_tlv *ldo;
1519
1520                 ldo = &pf->link_dflt_override;
1521                 phy_types_low = le64_to_cpu(pf->nvm_phy_type_lo);
1522                 phy_types_high = le64_to_cpu(pf->nvm_phy_type_hi);
1523
1524                 ice_mask_min_supported_speeds(phy_types_high, &phy_types_low);
1525
1526                 /* If override enabled and PHY mask set, then
1527                  * Advertising link mode is the intersection of the PHY
1528                  * types without media and the override PHY mask.
1529                  */
1530                 if (ldo->options & ICE_LINK_OVERRIDE_EN &&
1531                     (ldo->phy_type_low || ldo->phy_type_high)) {
1532                         adv_phy_type_lo =
1533                                 le64_to_cpu(pf->nvm_phy_type_lo) &
1534                                 ldo->phy_type_low;
1535                         adv_phy_type_hi =
1536                                 le64_to_cpu(pf->nvm_phy_type_hi) &
1537                                 ldo->phy_type_high;
1538                 }
1539         } else {
1540                 phy_types_low = vsi->port_info->phy.phy_type_low;
1541                 phy_types_high = vsi->port_info->phy.phy_type_high;
1542         }
1543
1544         /* If Advertising link mode PHY type is not using override PHY type,
1545          * then use PHY type with media.
1546          */
1547         if (!adv_phy_type_lo && !adv_phy_type_hi) {
1548                 adv_phy_type_lo = vsi->port_info->phy.phy_type_low;
1549                 adv_phy_type_hi = vsi->port_info->phy.phy_type_high;
1550         }
1551
1552         ethtool_link_ksettings_zero_link_mode(ks, supported);
1553         ethtool_link_ksettings_zero_link_mode(ks, advertising);
1554
1555         phy_type_mask_lo = ICE_PHY_TYPE_LOW_100BASE_TX |
1556                            ICE_PHY_TYPE_LOW_100M_SGMII;
1557         if (phy_types_low & phy_type_mask_lo) {
1558                 ethtool_link_ksettings_add_link_mode(ks, supported,
1559                                                      100baseT_Full);
1560
1561                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100MB,
1562                                                 100baseT_Full);
1563         }
1564
1565         phy_type_mask_lo = ICE_PHY_TYPE_LOW_1000BASE_T |
1566                            ICE_PHY_TYPE_LOW_1G_SGMII;
1567         if (phy_types_low & phy_type_mask_lo) {
1568                 ethtool_link_ksettings_add_link_mode(ks, supported,
1569                                                      1000baseT_Full);
1570                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_1000MB,
1571                                                 1000baseT_Full);
1572         }
1573
1574         phy_type_mask_lo = ICE_PHY_TYPE_LOW_1000BASE_KX;
1575         if (phy_types_low & phy_type_mask_lo) {
1576                 ethtool_link_ksettings_add_link_mode(ks, supported,
1577                                                      1000baseKX_Full);
1578                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_1000MB,
1579                                                 1000baseKX_Full);
1580         }
1581
1582         phy_type_mask_lo = ICE_PHY_TYPE_LOW_1000BASE_SX |
1583                            ICE_PHY_TYPE_LOW_1000BASE_LX;
1584         if (phy_types_low & phy_type_mask_lo) {
1585                 ethtool_link_ksettings_add_link_mode(ks, supported,
1586                                                      1000baseX_Full);
1587                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_1000MB,
1588                                                 1000baseX_Full);
1589         }
1590
1591         phy_type_mask_lo = ICE_PHY_TYPE_LOW_2500BASE_T;
1592         if (phy_types_low & phy_type_mask_lo) {
1593                 ethtool_link_ksettings_add_link_mode(ks, supported,
1594                                                      2500baseT_Full);
1595                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_2500MB,
1596                                                 2500baseT_Full);
1597         }
1598
1599         phy_type_mask_lo = ICE_PHY_TYPE_LOW_2500BASE_X |
1600                            ICE_PHY_TYPE_LOW_2500BASE_KX;
1601         if (phy_types_low & phy_type_mask_lo) {
1602                 ethtool_link_ksettings_add_link_mode(ks, supported,
1603                                                      2500baseX_Full);
1604                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_2500MB,
1605                                                 2500baseX_Full);
1606         }
1607
1608         phy_type_mask_lo = ICE_PHY_TYPE_LOW_5GBASE_T |
1609                            ICE_PHY_TYPE_LOW_5GBASE_KR;
1610         if (phy_types_low & phy_type_mask_lo) {
1611                 ethtool_link_ksettings_add_link_mode(ks, supported,
1612                                                      5000baseT_Full);
1613                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_5GB,
1614                                                 5000baseT_Full);
1615         }
1616
1617         phy_type_mask_lo = ICE_PHY_TYPE_LOW_10GBASE_T |
1618                            ICE_PHY_TYPE_LOW_10G_SFI_DA |
1619                            ICE_PHY_TYPE_LOW_10G_SFI_AOC_ACC |
1620                            ICE_PHY_TYPE_LOW_10G_SFI_C2C;
1621         if (phy_types_low & phy_type_mask_lo) {
1622                 ethtool_link_ksettings_add_link_mode(ks, supported,
1623                                                      10000baseT_Full);
1624                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_10GB,
1625                                                 10000baseT_Full);
1626         }
1627
1628         phy_type_mask_lo = ICE_PHY_TYPE_LOW_10GBASE_KR_CR1;
1629         if (phy_types_low & phy_type_mask_lo) {
1630                 ethtool_link_ksettings_add_link_mode(ks, supported,
1631                                                      10000baseKR_Full);
1632                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_10GB,
1633                                                 10000baseKR_Full);
1634         }
1635
1636         phy_type_mask_lo = ICE_PHY_TYPE_LOW_10GBASE_SR;
1637         if (phy_types_low & phy_type_mask_lo) {
1638                 ethtool_link_ksettings_add_link_mode(ks, supported,
1639                                                      10000baseSR_Full);
1640                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_10GB,
1641                                                 10000baseSR_Full);
1642         }
1643
1644         phy_type_mask_lo = ICE_PHY_TYPE_LOW_10GBASE_LR;
1645         if (phy_types_low & phy_type_mask_lo) {
1646                 ethtool_link_ksettings_add_link_mode(ks, supported,
1647                                                      10000baseLR_Full);
1648                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_10GB,
1649                                                 10000baseLR_Full);
1650         }
1651
1652         phy_type_mask_lo = ICE_PHY_TYPE_LOW_25GBASE_T |
1653                            ICE_PHY_TYPE_LOW_25GBASE_CR |
1654                            ICE_PHY_TYPE_LOW_25GBASE_CR_S |
1655                            ICE_PHY_TYPE_LOW_25GBASE_CR1 |
1656                            ICE_PHY_TYPE_LOW_25G_AUI_AOC_ACC |
1657                            ICE_PHY_TYPE_LOW_25G_AUI_C2C;
1658         if (phy_types_low & phy_type_mask_lo) {
1659                 ethtool_link_ksettings_add_link_mode(ks, supported,
1660                                                      25000baseCR_Full);
1661                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_25GB,
1662                                                 25000baseCR_Full);
1663         }
1664
1665         phy_type_mask_lo = ICE_PHY_TYPE_LOW_25GBASE_SR |
1666                            ICE_PHY_TYPE_LOW_25GBASE_LR;
1667         if (phy_types_low & phy_type_mask_lo) {
1668                 ethtool_link_ksettings_add_link_mode(ks, supported,
1669                                                      25000baseSR_Full);
1670                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_25GB,
1671                                                 25000baseSR_Full);
1672         }
1673
1674         phy_type_mask_lo = ICE_PHY_TYPE_LOW_25GBASE_KR |
1675                            ICE_PHY_TYPE_LOW_25GBASE_KR_S |
1676                            ICE_PHY_TYPE_LOW_25GBASE_KR1;
1677         if (phy_types_low & phy_type_mask_lo) {
1678                 ethtool_link_ksettings_add_link_mode(ks, supported,
1679                                                      25000baseKR_Full);
1680                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_25GB,
1681                                                 25000baseKR_Full);
1682         }
1683
1684         phy_type_mask_lo = ICE_PHY_TYPE_LOW_40GBASE_KR4;
1685         if (phy_types_low & phy_type_mask_lo) {
1686                 ethtool_link_ksettings_add_link_mode(ks, supported,
1687                                                      40000baseKR4_Full);
1688                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_40GB,
1689                                                 40000baseKR4_Full);
1690         }
1691
1692         phy_type_mask_lo = ICE_PHY_TYPE_LOW_40GBASE_CR4 |
1693                            ICE_PHY_TYPE_LOW_40G_XLAUI_AOC_ACC |
1694                            ICE_PHY_TYPE_LOW_40G_XLAUI;
1695         if (phy_types_low & phy_type_mask_lo) {
1696                 ethtool_link_ksettings_add_link_mode(ks, supported,
1697                                                      40000baseCR4_Full);
1698                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_40GB,
1699                                                 40000baseCR4_Full);
1700         }
1701
1702         phy_type_mask_lo = ICE_PHY_TYPE_LOW_40GBASE_SR4;
1703         if (phy_types_low & phy_type_mask_lo) {
1704                 ethtool_link_ksettings_add_link_mode(ks, supported,
1705                                                      40000baseSR4_Full);
1706                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_40GB,
1707                                                 40000baseSR4_Full);
1708         }
1709
1710         phy_type_mask_lo = ICE_PHY_TYPE_LOW_40GBASE_LR4;
1711         if (phy_types_low & phy_type_mask_lo) {
1712                 ethtool_link_ksettings_add_link_mode(ks, supported,
1713                                                      40000baseLR4_Full);
1714                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_40GB,
1715                                                 40000baseLR4_Full);
1716         }
1717
1718         phy_type_mask_lo = ICE_PHY_TYPE_LOW_50GBASE_CR2 |
1719                            ICE_PHY_TYPE_LOW_50G_LAUI2_AOC_ACC |
1720                            ICE_PHY_TYPE_LOW_50G_LAUI2 |
1721                            ICE_PHY_TYPE_LOW_50G_AUI2_AOC_ACC |
1722                            ICE_PHY_TYPE_LOW_50G_AUI2 |
1723                            ICE_PHY_TYPE_LOW_50GBASE_CP |
1724                            ICE_PHY_TYPE_LOW_50GBASE_SR |
1725                            ICE_PHY_TYPE_LOW_50G_AUI1_AOC_ACC |
1726                            ICE_PHY_TYPE_LOW_50G_AUI1;
1727         if (phy_types_low & phy_type_mask_lo) {
1728                 ethtool_link_ksettings_add_link_mode(ks, supported,
1729                                                      50000baseCR2_Full);
1730                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_50GB,
1731                                                 50000baseCR2_Full);
1732         }
1733
1734         phy_type_mask_lo = ICE_PHY_TYPE_LOW_50GBASE_KR2 |
1735                            ICE_PHY_TYPE_LOW_50GBASE_KR_PAM4;
1736         if (phy_types_low & phy_type_mask_lo) {
1737                 ethtool_link_ksettings_add_link_mode(ks, supported,
1738                                                      50000baseKR2_Full);
1739                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_50GB,
1740                                                 50000baseKR2_Full);
1741         }
1742
1743         phy_type_mask_lo = ICE_PHY_TYPE_LOW_50GBASE_SR2 |
1744                            ICE_PHY_TYPE_LOW_50GBASE_LR2 |
1745                            ICE_PHY_TYPE_LOW_50GBASE_FR |
1746                            ICE_PHY_TYPE_LOW_50GBASE_LR;
1747         if (phy_types_low & phy_type_mask_lo) {
1748                 ethtool_link_ksettings_add_link_mode(ks, supported,
1749                                                      50000baseSR2_Full);
1750                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_50GB,
1751                                                 50000baseSR2_Full);
1752         }
1753
1754         phy_type_mask_lo = ICE_PHY_TYPE_LOW_100GBASE_CR4 |
1755                            ICE_PHY_TYPE_LOW_100G_CAUI4_AOC_ACC |
1756                            ICE_PHY_TYPE_LOW_100G_CAUI4 |
1757                            ICE_PHY_TYPE_LOW_100G_AUI4_AOC_ACC |
1758                            ICE_PHY_TYPE_LOW_100G_AUI4 |
1759                            ICE_PHY_TYPE_LOW_100GBASE_CR_PAM4 |
1760                            ICE_PHY_TYPE_LOW_100GBASE_CP2;
1761         phy_type_mask_hi = ICE_PHY_TYPE_HIGH_100G_CAUI2_AOC_ACC |
1762                            ICE_PHY_TYPE_HIGH_100G_CAUI2 |
1763                            ICE_PHY_TYPE_HIGH_100G_AUI2_AOC_ACC |
1764                            ICE_PHY_TYPE_HIGH_100G_AUI2;
1765         if (phy_types_low & phy_type_mask_lo ||
1766             phy_types_high & phy_type_mask_hi) {
1767                 ethtool_link_ksettings_add_link_mode(ks, supported,
1768                                                      100000baseCR4_Full);
1769                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100GB,
1770                                                 100000baseCR4_Full);
1771         }
1772
1773         phy_type_mask_lo = ICE_PHY_TYPE_LOW_100GBASE_SR4 |
1774                            ICE_PHY_TYPE_LOW_100GBASE_SR2;
1775         if (phy_types_low & phy_type_mask_lo) {
1776                 ethtool_link_ksettings_add_link_mode(ks, supported,
1777                                                      100000baseSR4_Full);
1778                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100GB,
1779                                                 100000baseSR4_Full);
1780         }
1781
1782         phy_type_mask_lo = ICE_PHY_TYPE_LOW_100GBASE_LR4 |
1783                            ICE_PHY_TYPE_LOW_100GBASE_DR;
1784         if (phy_types_low & phy_type_mask_lo) {
1785                 ethtool_link_ksettings_add_link_mode(ks, supported,
1786                                                      100000baseLR4_ER4_Full);
1787                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100GB,
1788                                                 100000baseLR4_ER4_Full);
1789         }
1790
1791         phy_type_mask_lo = ICE_PHY_TYPE_LOW_100GBASE_KR4 |
1792                            ICE_PHY_TYPE_LOW_100GBASE_KR_PAM4;
1793         phy_type_mask_hi = ICE_PHY_TYPE_HIGH_100GBASE_KR2_PAM4;
1794         if (phy_types_low & phy_type_mask_lo ||
1795             phy_types_high & phy_type_mask_hi) {
1796                 ethtool_link_ksettings_add_link_mode(ks, supported,
1797                                                      100000baseKR4_Full);
1798                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100GB,
1799                                                 100000baseKR4_Full);
1800         }
1801 }
1802
1803 #define TEST_SET_BITS_TIMEOUT   50
1804 #define TEST_SET_BITS_SLEEP_MAX 2000
1805 #define TEST_SET_BITS_SLEEP_MIN 1000
1806
1807 /**
1808  * ice_get_settings_link_up - Get Link settings for when link is up
1809  * @ks: ethtool ksettings to fill in
1810  * @netdev: network interface device structure
1811  */
1812 static void
1813 ice_get_settings_link_up(struct ethtool_link_ksettings *ks,
1814                          struct net_device *netdev)
1815 {
1816         struct ice_netdev_priv *np = netdev_priv(netdev);
1817         struct ice_port_info *pi = np->vsi->port_info;
1818         struct ice_link_status *link_info;
1819         struct ice_vsi *vsi = np->vsi;
1820
1821         link_info = &vsi->port_info->phy.link_info;
1822
1823         /* Get supported and advertised settings from PHY ability with media */
1824         ice_phy_type_to_ethtool(netdev, ks);
1825
1826         switch (link_info->link_speed) {
1827         case ICE_AQ_LINK_SPEED_100GB:
1828                 ks->base.speed = SPEED_100000;
1829                 break;
1830         case ICE_AQ_LINK_SPEED_50GB:
1831                 ks->base.speed = SPEED_50000;
1832                 break;
1833         case ICE_AQ_LINK_SPEED_40GB:
1834                 ks->base.speed = SPEED_40000;
1835                 break;
1836         case ICE_AQ_LINK_SPEED_25GB:
1837                 ks->base.speed = SPEED_25000;
1838                 break;
1839         case ICE_AQ_LINK_SPEED_20GB:
1840                 ks->base.speed = SPEED_20000;
1841                 break;
1842         case ICE_AQ_LINK_SPEED_10GB:
1843                 ks->base.speed = SPEED_10000;
1844                 break;
1845         case ICE_AQ_LINK_SPEED_5GB:
1846                 ks->base.speed = SPEED_5000;
1847                 break;
1848         case ICE_AQ_LINK_SPEED_2500MB:
1849                 ks->base.speed = SPEED_2500;
1850                 break;
1851         case ICE_AQ_LINK_SPEED_1000MB:
1852                 ks->base.speed = SPEED_1000;
1853                 break;
1854         case ICE_AQ_LINK_SPEED_100MB:
1855                 ks->base.speed = SPEED_100;
1856                 break;
1857         default:
1858                 netdev_info(netdev, "WARNING: Unrecognized link_speed (0x%x).\n",
1859                             link_info->link_speed);
1860                 break;
1861         }
1862         ks->base.duplex = DUPLEX_FULL;
1863
1864         if (link_info->an_info & ICE_AQ_AN_COMPLETED)
1865                 ethtool_link_ksettings_add_link_mode(ks, lp_advertising,
1866                                                      Autoneg);
1867
1868         /* Set flow control negotiated Rx/Tx pause */
1869         switch (pi->fc.current_mode) {
1870         case ICE_FC_FULL:
1871                 ethtool_link_ksettings_add_link_mode(ks, lp_advertising, Pause);
1872                 break;
1873         case ICE_FC_TX_PAUSE:
1874                 ethtool_link_ksettings_add_link_mode(ks, lp_advertising, Pause);
1875                 ethtool_link_ksettings_add_link_mode(ks, lp_advertising,
1876                                                      Asym_Pause);
1877                 break;
1878         case ICE_FC_RX_PAUSE:
1879                 ethtool_link_ksettings_add_link_mode(ks, lp_advertising,
1880                                                      Asym_Pause);
1881                 break;
1882         case ICE_FC_PFC:
1883         default:
1884                 ethtool_link_ksettings_del_link_mode(ks, lp_advertising, Pause);
1885                 ethtool_link_ksettings_del_link_mode(ks, lp_advertising,
1886                                                      Asym_Pause);
1887                 break;
1888         }
1889 }
1890
1891 /**
1892  * ice_get_settings_link_down - Get the Link settings when link is down
1893  * @ks: ethtool ksettings to fill in
1894  * @netdev: network interface device structure
1895  *
1896  * Reports link settings that can be determined when link is down
1897  */
1898 static void
1899 ice_get_settings_link_down(struct ethtool_link_ksettings *ks,
1900                            struct net_device *netdev)
1901 {
1902         /* link is down and the driver needs to fall back on
1903          * supported PHY types to figure out what info to display
1904          */
1905         ice_phy_type_to_ethtool(netdev, ks);
1906
1907         /* With no link, speed and duplex are unknown */
1908         ks->base.speed = SPEED_UNKNOWN;
1909         ks->base.duplex = DUPLEX_UNKNOWN;
1910 }
1911
1912 /**
1913  * ice_get_link_ksettings - Get Link Speed and Duplex settings
1914  * @netdev: network interface device structure
1915  * @ks: ethtool ksettings
1916  *
1917  * Reports speed/duplex settings based on media_type
1918  */
1919 static int
1920 ice_get_link_ksettings(struct net_device *netdev,
1921                        struct ethtool_link_ksettings *ks)
1922 {
1923         struct ice_netdev_priv *np = netdev_priv(netdev);
1924         struct ice_aqc_get_phy_caps_data *caps;
1925         struct ice_link_status *hw_link_info;
1926         struct ice_vsi *vsi = np->vsi;
1927         enum ice_status status;
1928         int err = 0;
1929
1930         ethtool_link_ksettings_zero_link_mode(ks, supported);
1931         ethtool_link_ksettings_zero_link_mode(ks, advertising);
1932         ethtool_link_ksettings_zero_link_mode(ks, lp_advertising);
1933         hw_link_info = &vsi->port_info->phy.link_info;
1934
1935         /* set speed and duplex */
1936         if (hw_link_info->link_info & ICE_AQ_LINK_UP)
1937                 ice_get_settings_link_up(ks, netdev);
1938         else
1939                 ice_get_settings_link_down(ks, netdev);
1940
1941         /* set autoneg settings */
1942         ks->base.autoneg = (hw_link_info->an_info & ICE_AQ_AN_COMPLETED) ?
1943                 AUTONEG_ENABLE : AUTONEG_DISABLE;
1944
1945         /* set media type settings */
1946         switch (vsi->port_info->phy.media_type) {
1947         case ICE_MEDIA_FIBER:
1948                 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
1949                 ks->base.port = PORT_FIBRE;
1950                 break;
1951         case ICE_MEDIA_BASET:
1952                 ethtool_link_ksettings_add_link_mode(ks, supported, TP);
1953                 ethtool_link_ksettings_add_link_mode(ks, advertising, TP);
1954                 ks->base.port = PORT_TP;
1955                 break;
1956         case ICE_MEDIA_BACKPLANE:
1957                 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane);
1958                 ethtool_link_ksettings_add_link_mode(ks, advertising,
1959                                                      Backplane);
1960                 ks->base.port = PORT_NONE;
1961                 break;
1962         case ICE_MEDIA_DA:
1963                 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
1964                 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
1965                 ks->base.port = PORT_DA;
1966                 break;
1967         default:
1968                 ks->base.port = PORT_OTHER;
1969                 break;
1970         }
1971
1972         /* flow control is symmetric and always supported */
1973         ethtool_link_ksettings_add_link_mode(ks, supported, Pause);
1974
1975         caps = kzalloc(sizeof(*caps), GFP_KERNEL);
1976         if (!caps)
1977                 return -ENOMEM;
1978
1979         status = ice_aq_get_phy_caps(vsi->port_info, false,
1980                                      ICE_AQC_REPORT_ACTIVE_CFG, caps, NULL);
1981         if (status) {
1982                 err = -EIO;
1983                 goto done;
1984         }
1985
1986         /* Set the advertised flow control based on the PHY capability */
1987         if ((caps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE) &&
1988             (caps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE)) {
1989                 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
1990                 ethtool_link_ksettings_add_link_mode(ks, advertising,
1991                                                      Asym_Pause);
1992         } else if (caps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE) {
1993                 ethtool_link_ksettings_add_link_mode(ks, advertising,
1994                                                      Asym_Pause);
1995         } else if (caps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE) {
1996                 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
1997                 ethtool_link_ksettings_add_link_mode(ks, advertising,
1998                                                      Asym_Pause);
1999         } else {
2000                 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause);
2001                 ethtool_link_ksettings_del_link_mode(ks, advertising,
2002                                                      Asym_Pause);
2003         }
2004
2005         /* Set advertised FEC modes based on PHY capability */
2006         ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_NONE);
2007
2008         if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_REQ ||
2009             caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_REQ)
2010                 ethtool_link_ksettings_add_link_mode(ks, advertising,
2011                                                      FEC_BASER);
2012         if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_528_REQ ||
2013             caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_544_REQ)
2014                 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);
2015
2016         status = ice_aq_get_phy_caps(vsi->port_info, false,
2017                                      ICE_AQC_REPORT_TOPO_CAP_MEDIA, caps, NULL);
2018         if (status) {
2019                 err = -EIO;
2020                 goto done;
2021         }
2022
2023         /* Set supported FEC modes based on PHY capability */
2024         ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE);
2025
2026         if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_EN ||
2027             caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_CLAUSE74_EN)
2028                 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);
2029         if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_CLAUSE91_EN)
2030                 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);
2031
2032         /* Set supported and advertised autoneg */
2033         if (ice_is_phy_caps_an_enabled(caps)) {
2034                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
2035                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
2036         }
2037
2038 done:
2039         kfree(caps);
2040         return err;
2041 }
2042
2043 /**
2044  * ice_ksettings_find_adv_link_speed - Find advertising link speed
2045  * @ks: ethtool ksettings
2046  */
2047 static u16
2048 ice_ksettings_find_adv_link_speed(const struct ethtool_link_ksettings *ks)
2049 {
2050         u16 adv_link_speed = 0;
2051
2052         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2053                                                   100baseT_Full))
2054                 adv_link_speed |= ICE_AQ_LINK_SPEED_100MB;
2055         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2056                                                   1000baseX_Full))
2057                 adv_link_speed |= ICE_AQ_LINK_SPEED_1000MB;
2058         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2059                                                   1000baseT_Full) ||
2060             ethtool_link_ksettings_test_link_mode(ks, advertising,
2061                                                   1000baseKX_Full))
2062                 adv_link_speed |= ICE_AQ_LINK_SPEED_1000MB;
2063         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2064                                                   2500baseT_Full))
2065                 adv_link_speed |= ICE_AQ_LINK_SPEED_2500MB;
2066         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2067                                                   2500baseX_Full))
2068                 adv_link_speed |= ICE_AQ_LINK_SPEED_2500MB;
2069         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2070                                                   5000baseT_Full))
2071                 adv_link_speed |= ICE_AQ_LINK_SPEED_5GB;
2072         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2073                                                   10000baseT_Full) ||
2074             ethtool_link_ksettings_test_link_mode(ks, advertising,
2075                                                   10000baseKR_Full))
2076                 adv_link_speed |= ICE_AQ_LINK_SPEED_10GB;
2077         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2078                                                   10000baseSR_Full) ||
2079             ethtool_link_ksettings_test_link_mode(ks, advertising,
2080                                                   10000baseLR_Full))
2081                 adv_link_speed |= ICE_AQ_LINK_SPEED_10GB;
2082         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2083                                                   25000baseCR_Full) ||
2084             ethtool_link_ksettings_test_link_mode(ks, advertising,
2085                                                   25000baseSR_Full) ||
2086             ethtool_link_ksettings_test_link_mode(ks, advertising,
2087                                                   25000baseKR_Full))
2088                 adv_link_speed |= ICE_AQ_LINK_SPEED_25GB;
2089         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2090                                                   40000baseCR4_Full) ||
2091             ethtool_link_ksettings_test_link_mode(ks, advertising,
2092                                                   40000baseSR4_Full) ||
2093             ethtool_link_ksettings_test_link_mode(ks, advertising,
2094                                                   40000baseLR4_Full) ||
2095             ethtool_link_ksettings_test_link_mode(ks, advertising,
2096                                                   40000baseKR4_Full))
2097                 adv_link_speed |= ICE_AQ_LINK_SPEED_40GB;
2098         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2099                                                   50000baseCR2_Full) ||
2100             ethtool_link_ksettings_test_link_mode(ks, advertising,
2101                                                   50000baseKR2_Full))
2102                 adv_link_speed |= ICE_AQ_LINK_SPEED_50GB;
2103         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2104                                                   50000baseSR2_Full))
2105                 adv_link_speed |= ICE_AQ_LINK_SPEED_50GB;
2106         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2107                                                   100000baseCR4_Full) ||
2108             ethtool_link_ksettings_test_link_mode(ks, advertising,
2109                                                   100000baseSR4_Full) ||
2110             ethtool_link_ksettings_test_link_mode(ks, advertising,
2111                                                   100000baseLR4_ER4_Full) ||
2112             ethtool_link_ksettings_test_link_mode(ks, advertising,
2113                                                   100000baseKR4_Full))
2114                 adv_link_speed |= ICE_AQ_LINK_SPEED_100GB;
2115
2116         return adv_link_speed;
2117 }
2118
2119 /**
2120  * ice_setup_autoneg
2121  * @p: port info
2122  * @ks: ethtool_link_ksettings
2123  * @config: configuration that will be sent down to FW
2124  * @autoneg_enabled: autonegotiation is enabled or not
2125  * @autoneg_changed: will there a change in autonegotiation
2126  * @netdev: network interface device structure
2127  *
2128  * Setup PHY autonegotiation feature
2129  */
2130 static int
2131 ice_setup_autoneg(struct ice_port_info *p, struct ethtool_link_ksettings *ks,
2132                   struct ice_aqc_set_phy_cfg_data *config,
2133                   u8 autoneg_enabled, u8 *autoneg_changed,
2134                   struct net_device *netdev)
2135 {
2136         int err = 0;
2137
2138         *autoneg_changed = 0;
2139
2140         /* Check autoneg */
2141         if (autoneg_enabled == AUTONEG_ENABLE) {
2142                 /* If autoneg was not already enabled */
2143                 if (!(p->phy.link_info.an_info & ICE_AQ_AN_COMPLETED)) {
2144                         /* If autoneg is not supported, return error */
2145                         if (!ethtool_link_ksettings_test_link_mode(ks,
2146                                                                    supported,
2147                                                                    Autoneg)) {
2148                                 netdev_info(netdev, "Autoneg not supported on this phy.\n");
2149                                 err = -EINVAL;
2150                         } else {
2151                                 /* Autoneg is allowed to change */
2152                                 config->caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
2153                                 *autoneg_changed = 1;
2154                         }
2155                 }
2156         } else {
2157                 /* If autoneg is currently enabled */
2158                 if (p->phy.link_info.an_info & ICE_AQ_AN_COMPLETED) {
2159                         /* If autoneg is supported 10GBASE_T is the only PHY
2160                          * that can disable it, so otherwise return error
2161                          */
2162                         if (ethtool_link_ksettings_test_link_mode(ks,
2163                                                                   supported,
2164                                                                   Autoneg)) {
2165                                 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
2166                                 err = -EINVAL;
2167                         } else {
2168                                 /* Autoneg is allowed to change */
2169                                 config->caps &= ~ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
2170                                 *autoneg_changed = 1;
2171                         }
2172                 }
2173         }
2174
2175         return err;
2176 }
2177
2178 /**
2179  * ice_set_phy_type_from_speed - set phy_types based on speeds
2180  * and advertised modes
2181  * @ks: ethtool link ksettings struct
2182  * @phy_type_low: pointer to the lower part of phy_type
2183  * @phy_type_high: pointer to the higher part of phy_type
2184  * @adv_link_speed: targeted link speeds bitmap
2185  */
2186 static void
2187 ice_set_phy_type_from_speed(const struct ethtool_link_ksettings *ks,
2188                             u64 *phy_type_low, u64 *phy_type_high,
2189                             u16 adv_link_speed)
2190 {
2191         /* Handle 1000M speed in a special way because ice_update_phy_type
2192          * enables all link modes, but having mixed copper and optical
2193          * standards is not supported.
2194          */
2195         adv_link_speed &= ~ICE_AQ_LINK_SPEED_1000MB;
2196
2197         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2198                                                   1000baseT_Full))
2199                 *phy_type_low |= ICE_PHY_TYPE_LOW_1000BASE_T |
2200                                  ICE_PHY_TYPE_LOW_1G_SGMII;
2201
2202         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2203                                                   1000baseKX_Full))
2204                 *phy_type_low |= ICE_PHY_TYPE_LOW_1000BASE_KX;
2205
2206         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2207                                                   1000baseX_Full))
2208                 *phy_type_low |= ICE_PHY_TYPE_LOW_1000BASE_SX |
2209                                  ICE_PHY_TYPE_LOW_1000BASE_LX;
2210
2211         ice_update_phy_type(phy_type_low, phy_type_high, adv_link_speed);
2212 }
2213
2214 /**
2215  * ice_set_link_ksettings - Set Speed and Duplex
2216  * @netdev: network interface device structure
2217  * @ks: ethtool ksettings
2218  *
2219  * Set speed/duplex per media_types advertised/forced
2220  */
2221 static int
2222 ice_set_link_ksettings(struct net_device *netdev,
2223                        const struct ethtool_link_ksettings *ks)
2224 {
2225         struct ice_netdev_priv *np = netdev_priv(netdev);
2226         struct ethtool_link_ksettings safe_ks, copy_ks;
2227         u8 autoneg, timeout = TEST_SET_BITS_TIMEOUT;
2228         struct ice_aqc_get_phy_caps_data *phy_caps;
2229         struct ice_aqc_set_phy_cfg_data config;
2230         u16 adv_link_speed, curr_link_speed;
2231         struct ice_pf *pf = np->vsi->back;
2232         struct ice_port_info *pi;
2233         u8 autoneg_changed = 0;
2234         enum ice_status status;
2235         u64 phy_type_high = 0;
2236         u64 phy_type_low = 0;
2237         int err = 0;
2238         bool linkup;
2239
2240         pi = np->vsi->port_info;
2241
2242         if (!pi)
2243                 return -EOPNOTSUPP;
2244
2245         if (pi->phy.media_type != ICE_MEDIA_BASET &&
2246             pi->phy.media_type != ICE_MEDIA_FIBER &&
2247             pi->phy.media_type != ICE_MEDIA_BACKPLANE &&
2248             pi->phy.media_type != ICE_MEDIA_DA &&
2249             pi->phy.link_info.link_info & ICE_AQ_LINK_UP)
2250                 return -EOPNOTSUPP;
2251
2252         phy_caps = kzalloc(sizeof(*phy_caps), GFP_KERNEL);
2253         if (!phy_caps)
2254                 return -ENOMEM;
2255
2256         /* Get the PHY capabilities based on media */
2257         status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_MEDIA,
2258                                      phy_caps, NULL);
2259         if (status) {
2260                 err = -EAGAIN;
2261                 goto done;
2262         }
2263
2264         /* copy the ksettings to copy_ks to avoid modifying the original */
2265         memcpy(&copy_ks, ks, sizeof(copy_ks));
2266
2267         /* save autoneg out of ksettings */
2268         autoneg = copy_ks.base.autoneg;
2269
2270         memset(&safe_ks, 0, sizeof(safe_ks));
2271
2272         /* Get link modes supported by hardware.*/
2273         ice_phy_type_to_ethtool(netdev, &safe_ks);
2274
2275         /* and check against modes requested by user.
2276          * Return an error if unsupported mode was set.
2277          */
2278         if (!bitmap_subset(copy_ks.link_modes.advertising,
2279                            safe_ks.link_modes.supported,
2280                            __ETHTOOL_LINK_MODE_MASK_NBITS)) {
2281                 if (!test_bit(ICE_FLAG_LINK_LENIENT_MODE_ENA, pf->flags))
2282                         netdev_info(netdev, "The selected speed is not supported by the current media. Please select a link speed that is supported by the current media.\n");
2283                 err = -EINVAL;
2284                 goto done;
2285         }
2286
2287         /* get our own copy of the bits to check against */
2288         memset(&safe_ks, 0, sizeof(safe_ks));
2289         safe_ks.base.cmd = copy_ks.base.cmd;
2290         safe_ks.base.link_mode_masks_nwords =
2291                 copy_ks.base.link_mode_masks_nwords;
2292         ice_get_link_ksettings(netdev, &safe_ks);
2293
2294         /* set autoneg back to what it currently is */
2295         copy_ks.base.autoneg = safe_ks.base.autoneg;
2296         /* we don't compare the speed */
2297         copy_ks.base.speed = safe_ks.base.speed;
2298
2299         /* If copy_ks.base and safe_ks.base are not the same now, then they are
2300          * trying to set something that we do not support.
2301          */
2302         if (memcmp(&copy_ks.base, &safe_ks.base, sizeof(copy_ks.base))) {
2303                 err = -EOPNOTSUPP;
2304                 goto done;
2305         }
2306
2307         while (test_and_set_bit(__ICE_CFG_BUSY, pf->state)) {
2308                 timeout--;
2309                 if (!timeout) {
2310                         err = -EBUSY;
2311                         goto done;
2312                 }
2313                 usleep_range(TEST_SET_BITS_SLEEP_MIN, TEST_SET_BITS_SLEEP_MAX);
2314         }
2315
2316         /* Copy the current user PHY configuration. The current user PHY
2317          * configuration is initialized during probe from PHY capabilities
2318          * software mode, and updated on set PHY configuration.
2319          */
2320         memcpy(&config, &pi->phy.curr_user_phy_cfg, sizeof(config));
2321
2322         config.caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
2323
2324         /* Check autoneg */
2325         err = ice_setup_autoneg(pi, &safe_ks, &config, autoneg, &autoneg_changed,
2326                                 netdev);
2327
2328         if (err)
2329                 goto done;
2330
2331         /* Call to get the current link speed */
2332         pi->phy.get_link_info = true;
2333         status = ice_get_link_status(pi, &linkup);
2334         if (status) {
2335                 err = -EAGAIN;
2336                 goto done;
2337         }
2338
2339         curr_link_speed = pi->phy.curr_user_speed_req;
2340         adv_link_speed = ice_ksettings_find_adv_link_speed(ks);
2341
2342         /* If speed didn't get set, set it to what it currently is.
2343          * This is needed because if advertise is 0 (as it is when autoneg
2344          * is disabled) then speed won't get set.
2345          */
2346         if (!adv_link_speed)
2347                 adv_link_speed = curr_link_speed;
2348
2349         /* Convert the advertise link speeds to their corresponded PHY_TYPE */
2350         ice_set_phy_type_from_speed(ks, &phy_type_low, &phy_type_high,
2351                                     adv_link_speed);
2352
2353         if (!autoneg_changed && adv_link_speed == curr_link_speed) {
2354                 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
2355                 goto done;
2356         }
2357
2358         /* save the requested speeds */
2359         pi->phy.link_info.req_speeds = adv_link_speed;
2360
2361         /* set link and auto negotiation so changes take effect */
2362         config.caps |= ICE_AQ_PHY_ENA_LINK;
2363
2364         /* check if there is a PHY type for the requested advertised speed */
2365         if (!(phy_type_low || phy_type_high)) {
2366                 netdev_info(netdev, "The selected speed is not supported by the current media. Please select a link speed that is supported by the current media.\n");
2367                 err = -EAGAIN;
2368                 goto done;
2369         }
2370
2371         /* intersect requested advertised speed PHY types with media PHY types
2372          * for set PHY configuration
2373          */
2374         config.phy_type_high = cpu_to_le64(phy_type_high) &
2375                         phy_caps->phy_type_high;
2376         config.phy_type_low = cpu_to_le64(phy_type_low) &
2377                         phy_caps->phy_type_low;
2378
2379         if (!(config.phy_type_high || config.phy_type_low)) {
2380                 /* If there is no intersection and lenient mode is enabled, then
2381                  * intersect the requested advertised speed with NVM media type
2382                  * PHY types.
2383                  */
2384                 if (test_bit(ICE_FLAG_LINK_LENIENT_MODE_ENA, pf->flags)) {
2385                         config.phy_type_high = cpu_to_le64(phy_type_high) &
2386                                                pf->nvm_phy_type_hi;
2387                         config.phy_type_low = cpu_to_le64(phy_type_low) &
2388                                               pf->nvm_phy_type_lo;
2389                 } else {
2390                         netdev_info(netdev, "The selected speed is not supported by the current media. Please select a link speed that is supported by the current media.\n");
2391                         err = -EAGAIN;
2392                         goto done;
2393                 }
2394         }
2395
2396         /* If link is up put link down */
2397         if (pi->phy.link_info.link_info & ICE_AQ_LINK_UP) {
2398                 /* Tell the OS link is going down, the link will go
2399                  * back up when fw says it is ready asynchronously
2400                  */
2401                 ice_print_link_msg(np->vsi, false);
2402                 netif_carrier_off(netdev);
2403                 netif_tx_stop_all_queues(netdev);
2404         }
2405
2406         /* make the aq call */
2407         status = ice_aq_set_phy_cfg(&pf->hw, pi, &config, NULL);
2408         if (status) {
2409                 netdev_info(netdev, "Set phy config failed,\n");
2410                 err = -EAGAIN;
2411                 goto done;
2412         }
2413
2414         /* Save speed request */
2415         pi->phy.curr_user_speed_req = adv_link_speed;
2416 done:
2417         kfree(phy_caps);
2418         clear_bit(__ICE_CFG_BUSY, pf->state);
2419
2420         return err;
2421 }
2422
2423 /**
2424  * ice_parse_hdrs - parses headers from RSS hash input
2425  * @nfc: ethtool rxnfc command
2426  *
2427  * This function parses the rxnfc command and returns intended
2428  * header types for RSS configuration
2429  */
2430 static u32 ice_parse_hdrs(struct ethtool_rxnfc *nfc)
2431 {
2432         u32 hdrs = ICE_FLOW_SEG_HDR_NONE;
2433
2434         switch (nfc->flow_type) {
2435         case TCP_V4_FLOW:
2436                 hdrs |= ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV4;
2437                 break;
2438         case UDP_V4_FLOW:
2439                 hdrs |= ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV4;
2440                 break;
2441         case SCTP_V4_FLOW:
2442                 hdrs |= ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV4;
2443                 break;
2444         case TCP_V6_FLOW:
2445                 hdrs |= ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV6;
2446                 break;
2447         case UDP_V6_FLOW:
2448                 hdrs |= ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV6;
2449                 break;
2450         case SCTP_V6_FLOW:
2451                 hdrs |= ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV6;
2452                 break;
2453         default:
2454                 break;
2455         }
2456         return hdrs;
2457 }
2458
2459 #define ICE_FLOW_HASH_FLD_IPV4_SA       BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)
2460 #define ICE_FLOW_HASH_FLD_IPV6_SA       BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA)
2461 #define ICE_FLOW_HASH_FLD_IPV4_DA       BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)
2462 #define ICE_FLOW_HASH_FLD_IPV6_DA       BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)
2463 #define ICE_FLOW_HASH_FLD_TCP_SRC_PORT  BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT)
2464 #define ICE_FLOW_HASH_FLD_TCP_DST_PORT  BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT)
2465 #define ICE_FLOW_HASH_FLD_UDP_SRC_PORT  BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT)
2466 #define ICE_FLOW_HASH_FLD_UDP_DST_PORT  BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT)
2467 #define ICE_FLOW_HASH_FLD_SCTP_SRC_PORT \
2468         BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT)
2469 #define ICE_FLOW_HASH_FLD_SCTP_DST_PORT \
2470         BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT)
2471
2472 /**
2473  * ice_parse_hash_flds - parses hash fields from RSS hash input
2474  * @nfc: ethtool rxnfc command
2475  *
2476  * This function parses the rxnfc command and returns intended
2477  * hash fields for RSS configuration
2478  */
2479 static u64 ice_parse_hash_flds(struct ethtool_rxnfc *nfc)
2480 {
2481         u64 hfld = ICE_HASH_INVALID;
2482
2483         if (nfc->data & RXH_IP_SRC || nfc->data & RXH_IP_DST) {
2484                 switch (nfc->flow_type) {
2485                 case TCP_V4_FLOW:
2486                 case UDP_V4_FLOW:
2487                 case SCTP_V4_FLOW:
2488                         if (nfc->data & RXH_IP_SRC)
2489                                 hfld |= ICE_FLOW_HASH_FLD_IPV4_SA;
2490                         if (nfc->data & RXH_IP_DST)
2491                                 hfld |= ICE_FLOW_HASH_FLD_IPV4_DA;
2492                         break;
2493                 case TCP_V6_FLOW:
2494                 case UDP_V6_FLOW:
2495                 case SCTP_V6_FLOW:
2496                         if (nfc->data & RXH_IP_SRC)
2497                                 hfld |= ICE_FLOW_HASH_FLD_IPV6_SA;
2498                         if (nfc->data & RXH_IP_DST)
2499                                 hfld |= ICE_FLOW_HASH_FLD_IPV6_DA;
2500                         break;
2501                 default:
2502                         break;
2503                 }
2504         }
2505
2506         if (nfc->data & RXH_L4_B_0_1 || nfc->data & RXH_L4_B_2_3) {
2507                 switch (nfc->flow_type) {
2508                 case TCP_V4_FLOW:
2509                 case TCP_V6_FLOW:
2510                         if (nfc->data & RXH_L4_B_0_1)
2511                                 hfld |= ICE_FLOW_HASH_FLD_TCP_SRC_PORT;
2512                         if (nfc->data & RXH_L4_B_2_3)
2513                                 hfld |= ICE_FLOW_HASH_FLD_TCP_DST_PORT;
2514                         break;
2515                 case UDP_V4_FLOW:
2516                 case UDP_V6_FLOW:
2517                         if (nfc->data & RXH_L4_B_0_1)
2518                                 hfld |= ICE_FLOW_HASH_FLD_UDP_SRC_PORT;
2519                         if (nfc->data & RXH_L4_B_2_3)
2520                                 hfld |= ICE_FLOW_HASH_FLD_UDP_DST_PORT;
2521                         break;
2522                 case SCTP_V4_FLOW:
2523                 case SCTP_V6_FLOW:
2524                         if (nfc->data & RXH_L4_B_0_1)
2525                                 hfld |= ICE_FLOW_HASH_FLD_SCTP_SRC_PORT;
2526                         if (nfc->data & RXH_L4_B_2_3)
2527                                 hfld |= ICE_FLOW_HASH_FLD_SCTP_DST_PORT;
2528                         break;
2529                 default:
2530                         break;
2531                 }
2532         }
2533
2534         return hfld;
2535 }
2536
2537 /**
2538  * ice_set_rss_hash_opt - Enable/Disable flow types for RSS hash
2539  * @vsi: the VSI being configured
2540  * @nfc: ethtool rxnfc command
2541  *
2542  * Returns Success if the flow input set is supported.
2543  */
2544 static int
2545 ice_set_rss_hash_opt(struct ice_vsi *vsi, struct ethtool_rxnfc *nfc)
2546 {
2547         struct ice_pf *pf = vsi->back;
2548         enum ice_status status;
2549         struct device *dev;
2550         u64 hashed_flds;
2551         u32 hdrs;
2552
2553         dev = ice_pf_to_dev(pf);
2554         if (ice_is_safe_mode(pf)) {
2555                 dev_dbg(dev, "Advanced RSS disabled. Package download failed, vsi num = %d\n",
2556                         vsi->vsi_num);
2557                 return -EINVAL;
2558         }
2559
2560         hashed_flds = ice_parse_hash_flds(nfc);
2561         if (hashed_flds == ICE_HASH_INVALID) {
2562                 dev_dbg(dev, "Invalid hash fields, vsi num = %d\n",
2563                         vsi->vsi_num);
2564                 return -EINVAL;
2565         }
2566
2567         hdrs = ice_parse_hdrs(nfc);
2568         if (hdrs == ICE_FLOW_SEG_HDR_NONE) {
2569                 dev_dbg(dev, "Header type is not valid, vsi num = %d\n",
2570                         vsi->vsi_num);
2571                 return -EINVAL;
2572         }
2573
2574         status = ice_add_rss_cfg(&pf->hw, vsi->idx, hashed_flds, hdrs);
2575         if (status) {
2576                 dev_dbg(dev, "ice_add_rss_cfg failed, vsi num = %d, error = %s\n",
2577                         vsi->vsi_num, ice_stat_str(status));
2578                 return -EINVAL;
2579         }
2580
2581         return 0;
2582 }
2583
2584 /**
2585  * ice_get_rss_hash_opt - Retrieve hash fields for a given flow-type
2586  * @vsi: the VSI being configured
2587  * @nfc: ethtool rxnfc command
2588  */
2589 static void
2590 ice_get_rss_hash_opt(struct ice_vsi *vsi, struct ethtool_rxnfc *nfc)
2591 {
2592         struct ice_pf *pf = vsi->back;
2593         struct device *dev;
2594         u64 hash_flds;
2595         u32 hdrs;
2596
2597         dev = ice_pf_to_dev(pf);
2598
2599         nfc->data = 0;
2600         if (ice_is_safe_mode(pf)) {
2601                 dev_dbg(dev, "Advanced RSS disabled. Package download failed, vsi num = %d\n",
2602                         vsi->vsi_num);
2603                 return;
2604         }
2605
2606         hdrs = ice_parse_hdrs(nfc);
2607         if (hdrs == ICE_FLOW_SEG_HDR_NONE) {
2608                 dev_dbg(dev, "Header type is not valid, vsi num = %d\n",
2609                         vsi->vsi_num);
2610                 return;
2611         }
2612
2613         hash_flds = ice_get_rss_cfg(&pf->hw, vsi->idx, hdrs);
2614         if (hash_flds == ICE_HASH_INVALID) {
2615                 dev_dbg(dev, "No hash fields found for the given header type, vsi num = %d\n",
2616                         vsi->vsi_num);
2617                 return;
2618         }
2619
2620         if (hash_flds & ICE_FLOW_HASH_FLD_IPV4_SA ||
2621             hash_flds & ICE_FLOW_HASH_FLD_IPV6_SA)
2622                 nfc->data |= (u64)RXH_IP_SRC;
2623
2624         if (hash_flds & ICE_FLOW_HASH_FLD_IPV4_DA ||
2625             hash_flds & ICE_FLOW_HASH_FLD_IPV6_DA)
2626                 nfc->data |= (u64)RXH_IP_DST;
2627
2628         if (hash_flds & ICE_FLOW_HASH_FLD_TCP_SRC_PORT ||
2629             hash_flds & ICE_FLOW_HASH_FLD_UDP_SRC_PORT ||
2630             hash_flds & ICE_FLOW_HASH_FLD_SCTP_SRC_PORT)
2631                 nfc->data |= (u64)RXH_L4_B_0_1;
2632
2633         if (hash_flds & ICE_FLOW_HASH_FLD_TCP_DST_PORT ||
2634             hash_flds & ICE_FLOW_HASH_FLD_UDP_DST_PORT ||
2635             hash_flds & ICE_FLOW_HASH_FLD_SCTP_DST_PORT)
2636                 nfc->data |= (u64)RXH_L4_B_2_3;
2637 }
2638
2639 /**
2640  * ice_set_rxnfc - command to set Rx flow rules.
2641  * @netdev: network interface device structure
2642  * @cmd: ethtool rxnfc command
2643  *
2644  * Returns 0 for success and negative values for errors
2645  */
2646 static int ice_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
2647 {
2648         struct ice_netdev_priv *np = netdev_priv(netdev);
2649         struct ice_vsi *vsi = np->vsi;
2650
2651         switch (cmd->cmd) {
2652         case ETHTOOL_SRXCLSRLINS:
2653                 return ice_add_fdir_ethtool(vsi, cmd);
2654         case ETHTOOL_SRXCLSRLDEL:
2655                 return ice_del_fdir_ethtool(vsi, cmd);
2656         case ETHTOOL_SRXFH:
2657                 return ice_set_rss_hash_opt(vsi, cmd);
2658         default:
2659                 break;
2660         }
2661         return -EOPNOTSUPP;
2662 }
2663
2664 /**
2665  * ice_get_rxnfc - command to get Rx flow classification rules
2666  * @netdev: network interface device structure
2667  * @cmd: ethtool rxnfc command
2668  * @rule_locs: buffer to rturn Rx flow classification rules
2669  *
2670  * Returns Success if the command is supported.
2671  */
2672 static int
2673 ice_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
2674               u32 __always_unused *rule_locs)
2675 {
2676         struct ice_netdev_priv *np = netdev_priv(netdev);
2677         struct ice_vsi *vsi = np->vsi;
2678         int ret = -EOPNOTSUPP;
2679         struct ice_hw *hw;
2680
2681         hw = &vsi->back->hw;
2682
2683         switch (cmd->cmd) {
2684         case ETHTOOL_GRXRINGS:
2685                 cmd->data = vsi->rss_size;
2686                 ret = 0;
2687                 break;
2688         case ETHTOOL_GRXCLSRLCNT:
2689                 cmd->rule_cnt = hw->fdir_active_fltr;
2690                 /* report total rule count */
2691                 cmd->data = ice_get_fdir_cnt_all(hw);
2692                 ret = 0;
2693                 break;
2694         case ETHTOOL_GRXCLSRULE:
2695                 ret = ice_get_ethtool_fdir_entry(hw, cmd);
2696                 break;
2697         case ETHTOOL_GRXCLSRLALL:
2698                 ret = ice_get_fdir_fltr_ids(hw, cmd, (u32 *)rule_locs);
2699                 break;
2700         case ETHTOOL_GRXFH:
2701                 ice_get_rss_hash_opt(vsi, cmd);
2702                 ret = 0;
2703                 break;
2704         default:
2705                 break;
2706         }
2707
2708         return ret;
2709 }
2710
2711 static void
2712 ice_get_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring)
2713 {
2714         struct ice_netdev_priv *np = netdev_priv(netdev);
2715         struct ice_vsi *vsi = np->vsi;
2716
2717         ring->rx_max_pending = ICE_MAX_NUM_DESC;
2718         ring->tx_max_pending = ICE_MAX_NUM_DESC;
2719         ring->rx_pending = vsi->rx_rings[0]->count;
2720         ring->tx_pending = vsi->tx_rings[0]->count;
2721
2722         /* Rx mini and jumbo rings are not supported */
2723         ring->rx_mini_max_pending = 0;
2724         ring->rx_jumbo_max_pending = 0;
2725         ring->rx_mini_pending = 0;
2726         ring->rx_jumbo_pending = 0;
2727 }
2728
2729 static int
2730 ice_set_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring)
2731 {
2732         struct ice_ring *tx_rings = NULL, *rx_rings = NULL;
2733         struct ice_netdev_priv *np = netdev_priv(netdev);
2734         struct ice_ring *xdp_rings = NULL;
2735         struct ice_vsi *vsi = np->vsi;
2736         struct ice_pf *pf = vsi->back;
2737         int i, timeout = 50, err = 0;
2738         u16 new_rx_cnt, new_tx_cnt;
2739
2740         if (ring->tx_pending > ICE_MAX_NUM_DESC ||
2741             ring->tx_pending < ICE_MIN_NUM_DESC ||
2742             ring->rx_pending > ICE_MAX_NUM_DESC ||
2743             ring->rx_pending < ICE_MIN_NUM_DESC) {
2744                 netdev_err(netdev, "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d] (increment %d)\n",
2745                            ring->tx_pending, ring->rx_pending,
2746                            ICE_MIN_NUM_DESC, ICE_MAX_NUM_DESC,
2747                            ICE_REQ_DESC_MULTIPLE);
2748                 return -EINVAL;
2749         }
2750
2751         new_tx_cnt = ALIGN(ring->tx_pending, ICE_REQ_DESC_MULTIPLE);
2752         if (new_tx_cnt != ring->tx_pending)
2753                 netdev_info(netdev, "Requested Tx descriptor count rounded up to %d\n",
2754                             new_tx_cnt);
2755         new_rx_cnt = ALIGN(ring->rx_pending, ICE_REQ_DESC_MULTIPLE);
2756         if (new_rx_cnt != ring->rx_pending)
2757                 netdev_info(netdev, "Requested Rx descriptor count rounded up to %d\n",
2758                             new_rx_cnt);
2759
2760         /* if nothing to do return success */
2761         if (new_tx_cnt == vsi->tx_rings[0]->count &&
2762             new_rx_cnt == vsi->rx_rings[0]->count) {
2763                 netdev_dbg(netdev, "Nothing to change, descriptor count is same as requested\n");
2764                 return 0;
2765         }
2766
2767         /* If there is a AF_XDP UMEM attached to any of Rx rings,
2768          * disallow changing the number of descriptors -- regardless
2769          * if the netdev is running or not.
2770          */
2771         if (ice_xsk_any_rx_ring_ena(vsi))
2772                 return -EBUSY;
2773
2774         while (test_and_set_bit(__ICE_CFG_BUSY, pf->state)) {
2775                 timeout--;
2776                 if (!timeout)
2777                         return -EBUSY;
2778                 usleep_range(1000, 2000);
2779         }
2780
2781         /* set for the next time the netdev is started */
2782         if (!netif_running(vsi->netdev)) {
2783                 for (i = 0; i < vsi->alloc_txq; i++)
2784                         vsi->tx_rings[i]->count = new_tx_cnt;
2785                 for (i = 0; i < vsi->alloc_rxq; i++)
2786                         vsi->rx_rings[i]->count = new_rx_cnt;
2787                 if (ice_is_xdp_ena_vsi(vsi))
2788                         for (i = 0; i < vsi->num_xdp_txq; i++)
2789                                 vsi->xdp_rings[i]->count = new_tx_cnt;
2790                 vsi->num_tx_desc = (u16)new_tx_cnt;
2791                 vsi->num_rx_desc = (u16)new_rx_cnt;
2792                 netdev_dbg(netdev, "Link is down, descriptor count change happens when link is brought up\n");
2793                 goto done;
2794         }
2795
2796         if (new_tx_cnt == vsi->tx_rings[0]->count)
2797                 goto process_rx;
2798
2799         /* alloc updated Tx resources */
2800         netdev_info(netdev, "Changing Tx descriptor count from %d to %d\n",
2801                     vsi->tx_rings[0]->count, new_tx_cnt);
2802
2803         tx_rings = kcalloc(vsi->num_txq, sizeof(*tx_rings), GFP_KERNEL);
2804         if (!tx_rings) {
2805                 err = -ENOMEM;
2806                 goto done;
2807         }
2808
2809         ice_for_each_txq(vsi, i) {
2810                 /* clone ring and setup updated count */
2811                 tx_rings[i] = *vsi->tx_rings[i];
2812                 tx_rings[i].count = new_tx_cnt;
2813                 tx_rings[i].desc = NULL;
2814                 tx_rings[i].tx_buf = NULL;
2815                 err = ice_setup_tx_ring(&tx_rings[i]);
2816                 if (err) {
2817                         while (i--)
2818                                 ice_clean_tx_ring(&tx_rings[i]);
2819                         kfree(tx_rings);
2820                         goto done;
2821                 }
2822         }
2823
2824         if (!ice_is_xdp_ena_vsi(vsi))
2825                 goto process_rx;
2826
2827         /* alloc updated XDP resources */
2828         netdev_info(netdev, "Changing XDP descriptor count from %d to %d\n",
2829                     vsi->xdp_rings[0]->count, new_tx_cnt);
2830
2831         xdp_rings = kcalloc(vsi->num_xdp_txq, sizeof(*xdp_rings), GFP_KERNEL);
2832         if (!xdp_rings) {
2833                 err = -ENOMEM;
2834                 goto free_tx;
2835         }
2836
2837         for (i = 0; i < vsi->num_xdp_txq; i++) {
2838                 /* clone ring and setup updated count */
2839                 xdp_rings[i] = *vsi->xdp_rings[i];
2840                 xdp_rings[i].count = new_tx_cnt;
2841                 xdp_rings[i].desc = NULL;
2842                 xdp_rings[i].tx_buf = NULL;
2843                 err = ice_setup_tx_ring(&xdp_rings[i]);
2844                 if (err) {
2845                         while (i--)
2846                                 ice_clean_tx_ring(&xdp_rings[i]);
2847                         kfree(xdp_rings);
2848                         goto free_tx;
2849                 }
2850                 ice_set_ring_xdp(&xdp_rings[i]);
2851         }
2852
2853 process_rx:
2854         if (new_rx_cnt == vsi->rx_rings[0]->count)
2855                 goto process_link;
2856
2857         /* alloc updated Rx resources */
2858         netdev_info(netdev, "Changing Rx descriptor count from %d to %d\n",
2859                     vsi->rx_rings[0]->count, new_rx_cnt);
2860
2861         rx_rings = kcalloc(vsi->num_rxq, sizeof(*rx_rings), GFP_KERNEL);
2862         if (!rx_rings) {
2863                 err = -ENOMEM;
2864                 goto done;
2865         }
2866
2867         ice_for_each_rxq(vsi, i) {
2868                 /* clone ring and setup updated count */
2869                 rx_rings[i] = *vsi->rx_rings[i];
2870                 rx_rings[i].count = new_rx_cnt;
2871                 rx_rings[i].desc = NULL;
2872                 rx_rings[i].rx_buf = NULL;
2873                 /* this is to allow wr32 to have something to write to
2874                  * during early allocation of Rx buffers
2875                  */
2876                 rx_rings[i].tail = vsi->back->hw.hw_addr + PRTGEN_STATUS;
2877
2878                 err = ice_setup_rx_ring(&rx_rings[i]);
2879                 if (err)
2880                         goto rx_unwind;
2881
2882                 /* allocate Rx buffers */
2883                 err = ice_alloc_rx_bufs(&rx_rings[i],
2884                                         ICE_DESC_UNUSED(&rx_rings[i]));
2885 rx_unwind:
2886                 if (err) {
2887                         while (i) {
2888                                 i--;
2889                                 ice_free_rx_ring(&rx_rings[i]);
2890                         }
2891                         kfree(rx_rings);
2892                         err = -ENOMEM;
2893                         goto free_tx;
2894                 }
2895         }
2896
2897 process_link:
2898         /* Bring interface down, copy in the new ring info, then restore the
2899          * interface. if VSI is up, bring it down and then back up
2900          */
2901         if (!test_and_set_bit(__ICE_DOWN, vsi->state)) {
2902                 ice_down(vsi);
2903
2904                 if (tx_rings) {
2905                         ice_for_each_txq(vsi, i) {
2906                                 ice_free_tx_ring(vsi->tx_rings[i]);
2907                                 *vsi->tx_rings[i] = tx_rings[i];
2908                         }
2909                         kfree(tx_rings);
2910                 }
2911
2912                 if (rx_rings) {
2913                         ice_for_each_rxq(vsi, i) {
2914                                 ice_free_rx_ring(vsi->rx_rings[i]);
2915                                 /* copy the real tail offset */
2916                                 rx_rings[i].tail = vsi->rx_rings[i]->tail;
2917                                 /* this is to fake out the allocation routine
2918                                  * into thinking it has to realloc everything
2919                                  * but the recycling logic will let us re-use
2920                                  * the buffers allocated above
2921                                  */
2922                                 rx_rings[i].next_to_use = 0;
2923                                 rx_rings[i].next_to_clean = 0;
2924                                 rx_rings[i].next_to_alloc = 0;
2925                                 *vsi->rx_rings[i] = rx_rings[i];
2926                         }
2927                         kfree(rx_rings);
2928                 }
2929
2930                 if (xdp_rings) {
2931                         for (i = 0; i < vsi->num_xdp_txq; i++) {
2932                                 ice_free_tx_ring(vsi->xdp_rings[i]);
2933                                 *vsi->xdp_rings[i] = xdp_rings[i];
2934                         }
2935                         kfree(xdp_rings);
2936                 }
2937
2938                 vsi->num_tx_desc = new_tx_cnt;
2939                 vsi->num_rx_desc = new_rx_cnt;
2940                 ice_up(vsi);
2941         }
2942         goto done;
2943
2944 free_tx:
2945         /* error cleanup if the Rx allocations failed after getting Tx */
2946         if (tx_rings) {
2947                 ice_for_each_txq(vsi, i)
2948                         ice_free_tx_ring(&tx_rings[i]);
2949                 kfree(tx_rings);
2950         }
2951
2952 done:
2953         clear_bit(__ICE_CFG_BUSY, pf->state);
2954         return err;
2955 }
2956
2957 /**
2958  * ice_get_pauseparam - Get Flow Control status
2959  * @netdev: network interface device structure
2960  * @pause: ethernet pause (flow control) parameters
2961  *
2962  * Get requested flow control status from PHY capability.
2963  * If autoneg is true, then ethtool will send the ETHTOOL_GSET ioctl which
2964  * is handled by ice_get_link_ksettings. ice_get_link_ksettings will report
2965  * the negotiated Rx/Tx pause via lp_advertising.
2966  */
2967 static void
2968 ice_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause)
2969 {
2970         struct ice_netdev_priv *np = netdev_priv(netdev);
2971         struct ice_port_info *pi = np->vsi->port_info;
2972         struct ice_aqc_get_phy_caps_data *pcaps;
2973         struct ice_dcbx_cfg *dcbx_cfg;
2974         enum ice_status status;
2975
2976         /* Initialize pause params */
2977         pause->rx_pause = 0;
2978         pause->tx_pause = 0;
2979
2980         dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg;
2981
2982         pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL);
2983         if (!pcaps)
2984                 return;
2985
2986         /* Get current PHY config */
2987         status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_ACTIVE_CFG, pcaps,
2988                                      NULL);
2989         if (status)
2990                 goto out;
2991
2992         pause->autoneg = ice_is_phy_caps_an_enabled(pcaps) ? AUTONEG_ENABLE :
2993                                                              AUTONEG_DISABLE;
2994
2995         if (dcbx_cfg->pfc.pfcena)
2996                 /* PFC enabled so report LFC as off */
2997                 goto out;
2998
2999         if (pcaps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE)
3000                 pause->tx_pause = 1;
3001         if (pcaps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE)
3002                 pause->rx_pause = 1;
3003
3004 out:
3005         kfree(pcaps);
3006 }
3007
3008 /**
3009  * ice_set_pauseparam - Set Flow Control parameter
3010  * @netdev: network interface device structure
3011  * @pause: return Tx/Rx flow control status
3012  */
3013 static int
3014 ice_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause)
3015 {
3016         struct ice_netdev_priv *np = netdev_priv(netdev);
3017         struct ice_aqc_get_phy_caps_data *pcaps;
3018         struct ice_link_status *hw_link_info;
3019         struct ice_pf *pf = np->vsi->back;
3020         struct ice_dcbx_cfg *dcbx_cfg;
3021         struct ice_vsi *vsi = np->vsi;
3022         struct ice_hw *hw = &pf->hw;
3023         struct ice_port_info *pi;
3024         enum ice_status status;
3025         u8 aq_failures;
3026         bool link_up;
3027         int err = 0;
3028         u32 is_an;
3029
3030         pi = vsi->port_info;
3031         hw_link_info = &pi->phy.link_info;
3032         dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg;
3033         link_up = hw_link_info->link_info & ICE_AQ_LINK_UP;
3034
3035         /* Changing the port's flow control is not supported if this isn't the
3036          * PF VSI
3037          */
3038         if (vsi->type != ICE_VSI_PF) {
3039                 netdev_info(netdev, "Changing flow control parameters only supported for PF VSI\n");
3040                 return -EOPNOTSUPP;
3041         }
3042
3043         /* Get pause param reports configured and negotiated flow control pause
3044          * when ETHTOOL_GLINKSETTINGS is defined. Since ETHTOOL_GLINKSETTINGS is
3045          * defined get pause param pause->autoneg reports SW configured setting,
3046          * so compare pause->autoneg with SW configured to prevent the user from
3047          * using set pause param to chance autoneg.
3048          */
3049         pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL);
3050         if (!pcaps)
3051                 return -ENOMEM;
3052
3053         /* Get current PHY config */
3054         status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_ACTIVE_CFG, pcaps,
3055                                      NULL);
3056         if (status) {
3057                 kfree(pcaps);
3058                 return -EIO;
3059         }
3060
3061         is_an = ice_is_phy_caps_an_enabled(pcaps) ? AUTONEG_ENABLE :
3062                                                     AUTONEG_DISABLE;
3063
3064         kfree(pcaps);
3065
3066         if (pause->autoneg != is_an) {
3067                 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
3068                 return -EOPNOTSUPP;
3069         }
3070
3071         /* If we have link and don't have autoneg */
3072         if (!test_bit(__ICE_DOWN, pf->state) &&
3073             !(hw_link_info->an_info & ICE_AQ_AN_COMPLETED)) {
3074                 /* Send message that it might not necessarily work*/
3075                 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
3076         }
3077
3078         if (dcbx_cfg->pfc.pfcena) {
3079                 netdev_info(netdev, "Priority flow control enabled. Cannot set link flow control.\n");
3080                 return -EOPNOTSUPP;
3081         }
3082         if (pause->rx_pause && pause->tx_pause)
3083                 pi->fc.req_mode = ICE_FC_FULL;
3084         else if (pause->rx_pause && !pause->tx_pause)
3085                 pi->fc.req_mode = ICE_FC_RX_PAUSE;
3086         else if (!pause->rx_pause && pause->tx_pause)
3087                 pi->fc.req_mode = ICE_FC_TX_PAUSE;
3088         else if (!pause->rx_pause && !pause->tx_pause)
3089                 pi->fc.req_mode = ICE_FC_NONE;
3090         else
3091                 return -EINVAL;
3092
3093         /* Set the FC mode and only restart AN if link is up */
3094         status = ice_set_fc(pi, &aq_failures, link_up);
3095
3096         if (aq_failures & ICE_SET_FC_AQ_FAIL_GET) {
3097                 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n",
3098                             ice_stat_str(status),
3099                             ice_aq_str(hw->adminq.sq_last_status));
3100                 err = -EAGAIN;
3101         } else if (aq_failures & ICE_SET_FC_AQ_FAIL_SET) {
3102                 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n",
3103                             ice_stat_str(status),
3104                             ice_aq_str(hw->adminq.sq_last_status));
3105                 err = -EAGAIN;
3106         } else if (aq_failures & ICE_SET_FC_AQ_FAIL_UPDATE) {
3107                 netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n",
3108                             ice_stat_str(status),
3109                             ice_aq_str(hw->adminq.sq_last_status));
3110                 err = -EAGAIN;
3111         }
3112
3113         return err;
3114 }
3115
3116 /**
3117  * ice_get_rxfh_key_size - get the RSS hash key size
3118  * @netdev: network interface device structure
3119  *
3120  * Returns the table size.
3121  */
3122 static u32 ice_get_rxfh_key_size(struct net_device __always_unused *netdev)
3123 {
3124         return ICE_VSIQF_HKEY_ARRAY_SIZE;
3125 }
3126
3127 /**
3128  * ice_get_rxfh_indir_size - get the Rx flow hash indirection table size
3129  * @netdev: network interface device structure
3130  *
3131  * Returns the table size.
3132  */
3133 static u32 ice_get_rxfh_indir_size(struct net_device *netdev)
3134 {
3135         struct ice_netdev_priv *np = netdev_priv(netdev);
3136
3137         return np->vsi->rss_table_size;
3138 }
3139
3140 /**
3141  * ice_get_rxfh - get the Rx flow hash indirection table
3142  * @netdev: network interface device structure
3143  * @indir: indirection table
3144  * @key: hash key
3145  * @hfunc: hash function
3146  *
3147  * Reads the indirection table directly from the hardware.
3148  */
3149 static int
3150 ice_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, u8 *hfunc)
3151 {
3152         struct ice_netdev_priv *np = netdev_priv(netdev);
3153         struct ice_vsi *vsi = np->vsi;
3154         struct ice_pf *pf = vsi->back;
3155         int ret = 0, i;
3156         u8 *lut;
3157
3158         if (hfunc)
3159                 *hfunc = ETH_RSS_HASH_TOP;
3160
3161         if (!indir)
3162                 return 0;
3163
3164         if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) {
3165                 /* RSS not supported return error here */
3166                 netdev_warn(netdev, "RSS is not configured on this VSI!\n");
3167                 return -EIO;
3168         }
3169
3170         lut = kzalloc(vsi->rss_table_size, GFP_KERNEL);
3171         if (!lut)
3172                 return -ENOMEM;
3173
3174         if (ice_get_rss(vsi, key, lut, vsi->rss_table_size)) {
3175                 ret = -EIO;
3176                 goto out;
3177         }
3178
3179         for (i = 0; i < vsi->rss_table_size; i++)
3180                 indir[i] = (u32)(lut[i]);
3181
3182 out:
3183         kfree(lut);
3184         return ret;
3185 }
3186
3187 /**
3188  * ice_set_rxfh - set the Rx flow hash indirection table
3189  * @netdev: network interface device structure
3190  * @indir: indirection table
3191  * @key: hash key
3192  * @hfunc: hash function
3193  *
3194  * Returns -EINVAL if the table specifies an invalid queue ID, otherwise
3195  * returns 0 after programming the table.
3196  */
3197 static int
3198 ice_set_rxfh(struct net_device *netdev, const u32 *indir, const u8 *key,
3199              const u8 hfunc)
3200 {
3201         struct ice_netdev_priv *np = netdev_priv(netdev);
3202         struct ice_vsi *vsi = np->vsi;
3203         struct ice_pf *pf = vsi->back;
3204         struct device *dev;
3205         u8 *seed = NULL;
3206
3207         dev = ice_pf_to_dev(pf);
3208         if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
3209                 return -EOPNOTSUPP;
3210
3211         if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) {
3212                 /* RSS not supported return error here */
3213                 netdev_warn(netdev, "RSS is not configured on this VSI!\n");
3214                 return -EIO;
3215         }
3216
3217         if (key) {
3218                 if (!vsi->rss_hkey_user) {
3219                         vsi->rss_hkey_user =
3220                                 devm_kzalloc(dev, ICE_VSIQF_HKEY_ARRAY_SIZE,
3221                                              GFP_KERNEL);
3222                         if (!vsi->rss_hkey_user)
3223                                 return -ENOMEM;
3224                 }
3225                 memcpy(vsi->rss_hkey_user, key, ICE_VSIQF_HKEY_ARRAY_SIZE);
3226                 seed = vsi->rss_hkey_user;
3227         }
3228
3229         if (!vsi->rss_lut_user) {
3230                 vsi->rss_lut_user = devm_kzalloc(dev, vsi->rss_table_size,
3231                                                  GFP_KERNEL);
3232                 if (!vsi->rss_lut_user)
3233                         return -ENOMEM;
3234         }
3235
3236         /* Each 32 bits pointed by 'indir' is stored with a lut entry */
3237         if (indir) {
3238                 int i;
3239
3240                 for (i = 0; i < vsi->rss_table_size; i++)
3241                         vsi->rss_lut_user[i] = (u8)(indir[i]);
3242         } else {
3243                 ice_fill_rss_lut(vsi->rss_lut_user, vsi->rss_table_size,
3244                                  vsi->rss_size);
3245         }
3246
3247         if (ice_set_rss(vsi, seed, vsi->rss_lut_user, vsi->rss_table_size))
3248                 return -EIO;
3249
3250         return 0;
3251 }
3252
3253 /**
3254  * ice_get_max_txq - return the maximum number of Tx queues for in a PF
3255  * @pf: PF structure
3256  */
3257 static int ice_get_max_txq(struct ice_pf *pf)
3258 {
3259         return min3(pf->num_lan_msix, (u16)num_online_cpus(),
3260                     (u16)pf->hw.func_caps.common_cap.num_txq);
3261 }
3262
3263 /**
3264  * ice_get_max_rxq - return the maximum number of Rx queues for in a PF
3265  * @pf: PF structure
3266  */
3267 static int ice_get_max_rxq(struct ice_pf *pf)
3268 {
3269         return min3(pf->num_lan_msix, (u16)num_online_cpus(),
3270                     (u16)pf->hw.func_caps.common_cap.num_rxq);
3271 }
3272
3273 /**
3274  * ice_get_combined_cnt - return the current number of combined channels
3275  * @vsi: PF VSI pointer
3276  *
3277  * Go through all queue vectors and count ones that have both Rx and Tx ring
3278  * attached
3279  */
3280 static u32 ice_get_combined_cnt(struct ice_vsi *vsi)
3281 {
3282         u32 combined = 0;
3283         int q_idx;
3284
3285         ice_for_each_q_vector(vsi, q_idx) {
3286                 struct ice_q_vector *q_vector = vsi->q_vectors[q_idx];
3287
3288                 if (q_vector->rx.ring && q_vector->tx.ring)
3289                         combined++;
3290         }
3291
3292         return combined;
3293 }
3294
3295 /**
3296  * ice_get_channels - get the current and max supported channels
3297  * @dev: network interface device structure
3298  * @ch: ethtool channel data structure
3299  */
3300 static void
3301 ice_get_channels(struct net_device *dev, struct ethtool_channels *ch)
3302 {
3303         struct ice_netdev_priv *np = netdev_priv(dev);
3304         struct ice_vsi *vsi = np->vsi;
3305         struct ice_pf *pf = vsi->back;
3306
3307         /* report maximum channels */
3308         ch->max_rx = ice_get_max_rxq(pf);
3309         ch->max_tx = ice_get_max_txq(pf);
3310         ch->max_combined = min_t(int, ch->max_rx, ch->max_tx);
3311
3312         /* report current channels */
3313         ch->combined_count = ice_get_combined_cnt(vsi);
3314         ch->rx_count = vsi->num_rxq - ch->combined_count;
3315         ch->tx_count = vsi->num_txq - ch->combined_count;
3316
3317         /* report other queues */
3318         ch->other_count = test_bit(ICE_FLAG_FD_ENA, pf->flags) ? 1 : 0;
3319         ch->max_other = ch->other_count;
3320 }
3321
3322 /**
3323  * ice_get_valid_rss_size - return valid number of RSS queues
3324  * @hw: pointer to the HW structure
3325  * @new_size: requested RSS queues
3326  */
3327 static int ice_get_valid_rss_size(struct ice_hw *hw, int new_size)
3328 {
3329         struct ice_hw_common_caps *caps = &hw->func_caps.common_cap;
3330
3331         return min_t(int, new_size, BIT(caps->rss_table_entry_width));
3332 }
3333
3334 /**
3335  * ice_vsi_set_dflt_rss_lut - set default RSS LUT with requested RSS size
3336  * @vsi: VSI to reconfigure RSS LUT on
3337  * @req_rss_size: requested range of queue numbers for hashing
3338  *
3339  * Set the VSI's RSS parameters, configure the RSS LUT based on these.
3340  */
3341 static int ice_vsi_set_dflt_rss_lut(struct ice_vsi *vsi, int req_rss_size)
3342 {
3343         struct ice_pf *pf = vsi->back;
3344         enum ice_status status;
3345         struct device *dev;
3346         struct ice_hw *hw;
3347         int err = 0;
3348         u8 *lut;
3349
3350         dev = ice_pf_to_dev(pf);
3351         hw = &pf->hw;
3352
3353         if (!req_rss_size)
3354                 return -EINVAL;
3355
3356         lut = kzalloc(vsi->rss_table_size, GFP_KERNEL);
3357         if (!lut)
3358                 return -ENOMEM;
3359
3360         /* set RSS LUT parameters */
3361         if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags))
3362                 vsi->rss_size = 1;
3363         else
3364                 vsi->rss_size = ice_get_valid_rss_size(hw, req_rss_size);
3365
3366         /* create/set RSS LUT */
3367         ice_fill_rss_lut(lut, vsi->rss_table_size, vsi->rss_size);
3368         status = ice_aq_set_rss_lut(hw, vsi->idx, vsi->rss_lut_type, lut,
3369                                     vsi->rss_table_size);
3370         if (status) {
3371                 dev_err(dev, "Cannot set RSS lut, err %s aq_err %s\n",
3372                         ice_stat_str(status),
3373                         ice_aq_str(hw->adminq.sq_last_status));
3374                 err = -EIO;
3375         }
3376
3377         kfree(lut);
3378         return err;
3379 }
3380
3381 /**
3382  * ice_set_channels - set the number channels
3383  * @dev: network interface device structure
3384  * @ch: ethtool channel data structure
3385  */
3386 static int ice_set_channels(struct net_device *dev, struct ethtool_channels *ch)
3387 {
3388         struct ice_netdev_priv *np = netdev_priv(dev);
3389         struct ice_vsi *vsi = np->vsi;
3390         struct ice_pf *pf = vsi->back;
3391         int new_rx = 0, new_tx = 0;
3392         u32 curr_combined;
3393
3394         /* do not support changing channels in Safe Mode */
3395         if (ice_is_safe_mode(pf)) {
3396                 netdev_err(dev, "Changing channel in Safe Mode is not supported\n");
3397                 return -EOPNOTSUPP;
3398         }
3399         /* do not support changing other_count */
3400         if (ch->other_count != (test_bit(ICE_FLAG_FD_ENA, pf->flags) ? 1U : 0U))
3401                 return -EINVAL;
3402
3403         if (test_bit(ICE_FLAG_FD_ENA, pf->flags) && pf->hw.fdir_active_fltr) {
3404                 netdev_err(dev, "Cannot set channels when Flow Director filters are active\n");
3405                 return -EOPNOTSUPP;
3406         }
3407
3408         curr_combined = ice_get_combined_cnt(vsi);
3409
3410         /* these checks are for cases where user didn't specify a particular
3411          * value on cmd line but we get non-zero value anyway via
3412          * get_channels(); look at ethtool.c in ethtool repository (the user
3413          * space part), particularly, do_schannels() routine
3414          */
3415         if (ch->rx_count == vsi->num_rxq - curr_combined)
3416                 ch->rx_count = 0;
3417         if (ch->tx_count == vsi->num_txq - curr_combined)
3418                 ch->tx_count = 0;
3419         if (ch->combined_count == curr_combined)
3420                 ch->combined_count = 0;
3421
3422         if (!(ch->combined_count || (ch->rx_count && ch->tx_count))) {
3423                 netdev_err(dev, "Please specify at least 1 Rx and 1 Tx channel\n");
3424                 return -EINVAL;
3425         }
3426
3427         new_rx = ch->combined_count + ch->rx_count;
3428         new_tx = ch->combined_count + ch->tx_count;
3429
3430         if (new_rx > ice_get_max_rxq(pf)) {
3431                 netdev_err(dev, "Maximum allowed Rx channels is %d\n",
3432                            ice_get_max_rxq(pf));
3433                 return -EINVAL;
3434         }
3435         if (new_tx > ice_get_max_txq(pf)) {
3436                 netdev_err(dev, "Maximum allowed Tx channels is %d\n",
3437                            ice_get_max_txq(pf));
3438                 return -EINVAL;
3439         }
3440
3441         ice_vsi_recfg_qs(vsi, new_rx, new_tx);
3442
3443         if (!netif_is_rxfh_configured(dev))
3444                 return ice_vsi_set_dflt_rss_lut(vsi, new_rx);
3445
3446         /* Update rss_size due to change in Rx queues */
3447         vsi->rss_size = ice_get_valid_rss_size(&pf->hw, new_rx);
3448
3449         return 0;
3450 }
3451
3452 /**
3453  * ice_get_wol - get current Wake on LAN configuration
3454  * @netdev: network interface device structure
3455  * @wol: Ethtool structure to retrieve WoL settings
3456  */
3457 static void ice_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
3458 {
3459         struct ice_netdev_priv *np = netdev_priv(netdev);
3460         struct ice_pf *pf = np->vsi->back;
3461
3462         if (np->vsi->type != ICE_VSI_PF)
3463                 netdev_warn(netdev, "Wake on LAN is not supported on this interface!\n");
3464
3465         /* Get WoL settings based on the HW capability */
3466         if (ice_is_wol_supported(&pf->hw)) {
3467                 wol->supported = WAKE_MAGIC;
3468                 wol->wolopts = pf->wol_ena ? WAKE_MAGIC : 0;
3469         } else {
3470                 wol->supported = 0;
3471                 wol->wolopts = 0;
3472         }
3473 }
3474
3475 /**
3476  * ice_set_wol - set Wake on LAN on supported device
3477  * @netdev: network interface device structure
3478  * @wol: Ethtool structure to set WoL
3479  */
3480 static int ice_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
3481 {
3482         struct ice_netdev_priv *np = netdev_priv(netdev);
3483         struct ice_vsi *vsi = np->vsi;
3484         struct ice_pf *pf = vsi->back;
3485
3486         if (vsi->type != ICE_VSI_PF || !ice_is_wol_supported(&pf->hw))
3487                 return -EOPNOTSUPP;
3488
3489         /* only magic packet is supported */
3490         if (wol->wolopts && wol->wolopts != WAKE_MAGIC)
3491                 return -EOPNOTSUPP;
3492
3493         /* Set WoL only if there is a new value */
3494         if (pf->wol_ena != !!wol->wolopts) {
3495                 pf->wol_ena = !!wol->wolopts;
3496                 device_set_wakeup_enable(ice_pf_to_dev(pf), pf->wol_ena);
3497                 netdev_dbg(netdev, "WoL magic packet %sabled\n",
3498                            pf->wol_ena ? "en" : "dis");
3499         }
3500
3501         return 0;
3502 }
3503
3504 enum ice_container_type {
3505         ICE_RX_CONTAINER,
3506         ICE_TX_CONTAINER,
3507 };
3508
3509 /**
3510  * ice_get_rc_coalesce - get ITR values for specific ring container
3511  * @ec: ethtool structure to fill with driver's coalesce settings
3512  * @c_type: container type, Rx or Tx
3513  * @rc: ring container that the ITR values will come from
3514  *
3515  * Query the device for ice_ring_container specific ITR values. This is
3516  * done per ice_ring_container because each q_vector can have 1 or more rings
3517  * and all of said ring(s) will have the same ITR values.
3518  *
3519  * Returns 0 on success, negative otherwise.
3520  */
3521 static int
3522 ice_get_rc_coalesce(struct ethtool_coalesce *ec, enum ice_container_type c_type,
3523                     struct ice_ring_container *rc)
3524 {
3525         if (!rc->ring)
3526                 return -EINVAL;
3527
3528         switch (c_type) {
3529         case ICE_RX_CONTAINER:
3530                 ec->use_adaptive_rx_coalesce = ITR_IS_DYNAMIC(rc->itr_setting);
3531                 ec->rx_coalesce_usecs = rc->itr_setting & ~ICE_ITR_DYNAMIC;
3532                 ec->rx_coalesce_usecs_high = rc->ring->q_vector->intrl;
3533                 break;
3534         case ICE_TX_CONTAINER:
3535                 ec->use_adaptive_tx_coalesce = ITR_IS_DYNAMIC(rc->itr_setting);
3536                 ec->tx_coalesce_usecs = rc->itr_setting & ~ICE_ITR_DYNAMIC;
3537                 break;
3538         default:
3539                 dev_dbg(ice_pf_to_dev(rc->ring->vsi->back), "Invalid c_type %d\n", c_type);
3540                 return -EINVAL;
3541         }
3542
3543         return 0;
3544 }
3545
3546 /**
3547  * ice_get_q_coalesce - get a queue's ITR/INTRL (coalesce) settings
3548  * @vsi: VSI associated to the queue for getting ITR/INTRL (coalesce) settings
3549  * @ec: coalesce settings to program the device with
3550  * @q_num: update ITR/INTRL (coalesce) settings for this queue number/index
3551  *
3552  * Return 0 on success, and negative under the following conditions:
3553  * 1. Getting Tx or Rx ITR/INTRL (coalesce) settings failed.
3554  * 2. The q_num passed in is not a valid number/index for Tx and Rx rings.
3555  */
3556 static int
3557 ice_get_q_coalesce(struct ice_vsi *vsi, struct ethtool_coalesce *ec, int q_num)
3558 {
3559         if (q_num < vsi->num_rxq && q_num < vsi->num_txq) {
3560                 if (ice_get_rc_coalesce(ec, ICE_RX_CONTAINER,
3561                                         &vsi->rx_rings[q_num]->q_vector->rx))
3562                         return -EINVAL;
3563                 if (ice_get_rc_coalesce(ec, ICE_TX_CONTAINER,
3564                                         &vsi->tx_rings[q_num]->q_vector->tx))
3565                         return -EINVAL;
3566         } else if (q_num < vsi->num_rxq) {
3567                 if (ice_get_rc_coalesce(ec, ICE_RX_CONTAINER,
3568                                         &vsi->rx_rings[q_num]->q_vector->rx))
3569                         return -EINVAL;
3570         } else if (q_num < vsi->num_txq) {
3571                 if (ice_get_rc_coalesce(ec, ICE_TX_CONTAINER,
3572                                         &vsi->tx_rings[q_num]->q_vector->tx))
3573                         return -EINVAL;
3574         } else {
3575                 return -EINVAL;
3576         }
3577
3578         return 0;
3579 }
3580
3581 /**
3582  * __ice_get_coalesce - get ITR/INTRL values for the device
3583  * @netdev: pointer to the netdev associated with this query
3584  * @ec: ethtool structure to fill with driver's coalesce settings
3585  * @q_num: queue number to get the coalesce settings for
3586  *
3587  * If the caller passes in a negative q_num then we return coalesce settings
3588  * based on queue number 0, else use the actual q_num passed in.
3589  */
3590 static int
3591 __ice_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec,
3592                    int q_num)
3593 {
3594         struct ice_netdev_priv *np = netdev_priv(netdev);
3595         struct ice_vsi *vsi = np->vsi;
3596
3597         if (q_num < 0)
3598                 q_num = 0;
3599
3600         if (ice_get_q_coalesce(vsi, ec, q_num))
3601                 return -EINVAL;
3602
3603         return 0;
3604 }
3605
3606 static int
3607 ice_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec)
3608 {
3609         return __ice_get_coalesce(netdev, ec, -1);
3610 }
3611
3612 static int
3613 ice_get_per_q_coalesce(struct net_device *netdev, u32 q_num,
3614                        struct ethtool_coalesce *ec)
3615 {
3616         return __ice_get_coalesce(netdev, ec, q_num);
3617 }
3618
3619 /**
3620  * ice_set_rc_coalesce - set ITR values for specific ring container
3621  * @c_type: container type, Rx or Tx
3622  * @ec: ethtool structure from user to update ITR settings
3623  * @rc: ring container that the ITR values will come from
3624  * @vsi: VSI associated to the ring container
3625  *
3626  * Set specific ITR values. This is done per ice_ring_container because each
3627  * q_vector can have 1 or more rings and all of said ring(s) will have the same
3628  * ITR values.
3629  *
3630  * Returns 0 on success, negative otherwise.
3631  */
3632 static int
3633 ice_set_rc_coalesce(enum ice_container_type c_type, struct ethtool_coalesce *ec,
3634                     struct ice_ring_container *rc, struct ice_vsi *vsi)
3635 {
3636         const char *c_type_str = (c_type == ICE_RX_CONTAINER) ? "rx" : "tx";
3637         u32 use_adaptive_coalesce, coalesce_usecs;
3638         struct ice_pf *pf = vsi->back;
3639         u16 itr_setting;
3640
3641         if (!rc->ring)
3642                 return -EINVAL;
3643
3644         switch (c_type) {
3645         case ICE_RX_CONTAINER:
3646                 if (ec->rx_coalesce_usecs_high > ICE_MAX_INTRL ||
3647                     (ec->rx_coalesce_usecs_high &&
3648                      ec->rx_coalesce_usecs_high < pf->hw.intrl_gran)) {
3649                         netdev_info(vsi->netdev, "Invalid value, %s-usecs-high valid values are 0 (disabled), %d-%d\n",
3650                                     c_type_str, pf->hw.intrl_gran,
3651                                     ICE_MAX_INTRL);
3652                         return -EINVAL;
3653                 }
3654                 if (ec->rx_coalesce_usecs_high != rc->ring->q_vector->intrl) {
3655                         rc->ring->q_vector->intrl = ec->rx_coalesce_usecs_high;
3656                         wr32(&pf->hw, GLINT_RATE(rc->ring->q_vector->reg_idx),
3657                              ice_intrl_usec_to_reg(ec->rx_coalesce_usecs_high,
3658                                                    pf->hw.intrl_gran));
3659                 }
3660
3661                 use_adaptive_coalesce = ec->use_adaptive_rx_coalesce;
3662                 coalesce_usecs = ec->rx_coalesce_usecs;
3663
3664                 break;
3665         case ICE_TX_CONTAINER:
3666                 use_adaptive_coalesce = ec->use_adaptive_tx_coalesce;
3667                 coalesce_usecs = ec->tx_coalesce_usecs;
3668
3669                 break;
3670         default:
3671                 dev_dbg(ice_pf_to_dev(pf), "Invalid container type %d\n",
3672                         c_type);
3673                 return -EINVAL;
3674         }
3675
3676         itr_setting = rc->itr_setting & ~ICE_ITR_DYNAMIC;
3677         if (coalesce_usecs != itr_setting && use_adaptive_coalesce) {
3678                 netdev_info(vsi->netdev, "%s interrupt throttling cannot be changed if adaptive-%s is enabled\n",
3679                             c_type_str, c_type_str);
3680                 return -EINVAL;
3681         }
3682
3683         if (coalesce_usecs > ICE_ITR_MAX) {
3684                 netdev_info(vsi->netdev, "Invalid value, %s-usecs range is 0-%d\n",
3685                             c_type_str, ICE_ITR_MAX);
3686                 return -EINVAL;
3687         }
3688
3689         if (use_adaptive_coalesce) {
3690                 rc->itr_setting |= ICE_ITR_DYNAMIC;
3691         } else {
3692                 /* save the user set usecs */
3693                 rc->itr_setting = coalesce_usecs;
3694                 /* device ITR granularity is in 2 usec increments */
3695                 rc->target_itr = ITR_REG_ALIGN(rc->itr_setting);
3696         }
3697
3698         return 0;
3699 }
3700
3701 /**
3702  * ice_set_q_coalesce - set a queue's ITR/INTRL (coalesce) settings
3703  * @vsi: VSI associated to the queue that need updating
3704  * @ec: coalesce settings to program the device with
3705  * @q_num: update ITR/INTRL (coalesce) settings for this queue number/index
3706  *
3707  * Return 0 on success, and negative under the following conditions:
3708  * 1. Setting Tx or Rx ITR/INTRL (coalesce) settings failed.
3709  * 2. The q_num passed in is not a valid number/index for Tx and Rx rings.
3710  */
3711 static int
3712 ice_set_q_coalesce(struct ice_vsi *vsi, struct ethtool_coalesce *ec, int q_num)
3713 {
3714         if (q_num < vsi->num_rxq && q_num < vsi->num_txq) {
3715                 if (ice_set_rc_coalesce(ICE_RX_CONTAINER, ec,
3716                                         &vsi->rx_rings[q_num]->q_vector->rx,
3717                                         vsi))
3718                         return -EINVAL;
3719
3720                 if (ice_set_rc_coalesce(ICE_TX_CONTAINER, ec,
3721                                         &vsi->tx_rings[q_num]->q_vector->tx,
3722                                         vsi))
3723                         return -EINVAL;
3724         } else if (q_num < vsi->num_rxq) {
3725                 if (ice_set_rc_coalesce(ICE_RX_CONTAINER, ec,
3726                                         &vsi->rx_rings[q_num]->q_vector->rx,
3727                                         vsi))
3728                         return -EINVAL;
3729         } else if (q_num < vsi->num_txq) {
3730                 if (ice_set_rc_coalesce(ICE_TX_CONTAINER, ec,
3731                                         &vsi->tx_rings[q_num]->q_vector->tx,
3732                                         vsi))
3733                         return -EINVAL;
3734         } else {
3735                 return -EINVAL;
3736         }
3737
3738         return 0;
3739 }
3740
3741 /**
3742  * ice_print_if_odd_usecs - print message if user tries to set odd [tx|rx]-usecs
3743  * @netdev: netdev used for print
3744  * @itr_setting: previous user setting
3745  * @use_adaptive_coalesce: if adaptive coalesce is enabled or being enabled
3746  * @coalesce_usecs: requested value of [tx|rx]-usecs
3747  * @c_type_str: either "rx" or "tx" to match user set field of [tx|rx]-usecs
3748  */
3749 static void
3750 ice_print_if_odd_usecs(struct net_device *netdev, u16 itr_setting,
3751                        u32 use_adaptive_coalesce, u32 coalesce_usecs,
3752                        const char *c_type_str)
3753 {
3754         if (use_adaptive_coalesce)
3755                 return;
3756
3757         itr_setting = ITR_TO_REG(itr_setting);
3758
3759         if (itr_setting != coalesce_usecs && (coalesce_usecs % 2))
3760                 netdev_info(netdev, "User set %s-usecs to %d, device only supports even values. Rounding down and attempting to set %s-usecs to %d\n",
3761                             c_type_str, coalesce_usecs, c_type_str,
3762                             ITR_REG_ALIGN(coalesce_usecs));
3763 }
3764
3765 /**
3766  * __ice_set_coalesce - set ITR/INTRL values for the device
3767  * @netdev: pointer to the netdev associated with this query
3768  * @ec: ethtool structure to fill with driver's coalesce settings
3769  * @q_num: queue number to get the coalesce settings for
3770  *
3771  * If the caller passes in a negative q_num then we set the coalesce settings
3772  * for all Tx/Rx queues, else use the actual q_num passed in.
3773  */
3774 static int
3775 __ice_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec,
3776                    int q_num)
3777 {
3778         struct ice_netdev_priv *np = netdev_priv(netdev);
3779         struct ice_vsi *vsi = np->vsi;
3780
3781         if (q_num < 0) {
3782                 struct ice_q_vector *q_vector = vsi->q_vectors[0];
3783                 int v_idx;
3784
3785                 if (q_vector) {
3786                         ice_print_if_odd_usecs(netdev, q_vector->rx.itr_setting,
3787                                                ec->use_adaptive_rx_coalesce,
3788                                                ec->rx_coalesce_usecs, "rx");
3789
3790                         ice_print_if_odd_usecs(netdev, q_vector->tx.itr_setting,
3791                                                ec->use_adaptive_tx_coalesce,
3792                                                ec->tx_coalesce_usecs, "tx");
3793                 }
3794
3795                 ice_for_each_q_vector(vsi, v_idx) {
3796                         /* In some cases if DCB is configured the num_[rx|tx]q
3797                          * can be less than vsi->num_q_vectors. This check
3798                          * accounts for that so we don't report a false failure
3799                          */
3800                         if (v_idx >= vsi->num_rxq && v_idx >= vsi->num_txq)
3801                                 goto set_complete;
3802
3803                         if (ice_set_q_coalesce(vsi, ec, v_idx))
3804                                 return -EINVAL;
3805                 }
3806                 goto set_complete;
3807         }
3808
3809         if (ice_set_q_coalesce(vsi, ec, q_num))
3810                 return -EINVAL;
3811
3812 set_complete:
3813
3814         return 0;
3815 }
3816
3817 static int
3818 ice_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec)
3819 {
3820         return __ice_set_coalesce(netdev, ec, -1);
3821 }
3822
3823 static int
3824 ice_set_per_q_coalesce(struct net_device *netdev, u32 q_num,
3825                        struct ethtool_coalesce *ec)
3826 {
3827         return __ice_set_coalesce(netdev, ec, q_num);
3828 }
3829
3830 #define ICE_I2C_EEPROM_DEV_ADDR         0xA0
3831 #define ICE_I2C_EEPROM_DEV_ADDR2        0xA2
3832 #define ICE_MODULE_TYPE_SFP             0x03
3833 #define ICE_MODULE_TYPE_QSFP_PLUS       0x0D
3834 #define ICE_MODULE_TYPE_QSFP28          0x11
3835 #define ICE_MODULE_SFF_ADDR_MODE        0x04
3836 #define ICE_MODULE_SFF_DIAG_CAPAB       0x40
3837 #define ICE_MODULE_REVISION_ADDR        0x01
3838 #define ICE_MODULE_SFF_8472_COMP        0x5E
3839 #define ICE_MODULE_SFF_8472_SWAP        0x5C
3840 #define ICE_MODULE_QSFP_MAX_LEN         640
3841
3842 /**
3843  * ice_get_module_info - get SFF module type and revision information
3844  * @netdev: network interface device structure
3845  * @modinfo: module EEPROM size and layout information structure
3846  */
3847 static int
3848 ice_get_module_info(struct net_device *netdev,
3849                     struct ethtool_modinfo *modinfo)
3850 {
3851         struct ice_netdev_priv *np = netdev_priv(netdev);
3852         struct ice_vsi *vsi = np->vsi;
3853         struct ice_pf *pf = vsi->back;
3854         struct ice_hw *hw = &pf->hw;
3855         enum ice_status status;
3856         u8 sff8472_comp = 0;
3857         u8 sff8472_swap = 0;
3858         u8 sff8636_rev = 0;
3859         u8 value = 0;
3860
3861         status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR, 0x00, 0x00,
3862                                    0, &value, 1, 0, NULL);
3863         if (status)
3864                 return -EIO;
3865
3866         switch (value) {
3867         case ICE_MODULE_TYPE_SFP:
3868                 status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR,
3869                                            ICE_MODULE_SFF_8472_COMP, 0x00, 0,
3870                                            &sff8472_comp, 1, 0, NULL);
3871                 if (status)
3872                         return -EIO;
3873                 status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR,
3874                                            ICE_MODULE_SFF_8472_SWAP, 0x00, 0,
3875                                            &sff8472_swap, 1, 0, NULL);
3876                 if (status)
3877                         return -EIO;
3878
3879                 if (sff8472_swap & ICE_MODULE_SFF_ADDR_MODE) {
3880                         modinfo->type = ETH_MODULE_SFF_8079;
3881                         modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
3882                 } else if (sff8472_comp &&
3883                            (sff8472_swap & ICE_MODULE_SFF_DIAG_CAPAB)) {
3884                         modinfo->type = ETH_MODULE_SFF_8472;
3885                         modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
3886                 } else {
3887                         modinfo->type = ETH_MODULE_SFF_8079;
3888                         modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
3889                 }
3890                 break;
3891         case ICE_MODULE_TYPE_QSFP_PLUS:
3892         case ICE_MODULE_TYPE_QSFP28:
3893                 status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR,
3894                                            ICE_MODULE_REVISION_ADDR, 0x00, 0,
3895                                            &sff8636_rev, 1, 0, NULL);
3896                 if (status)
3897                         return -EIO;
3898                 /* Check revision compliance */
3899                 if (sff8636_rev > 0x02) {
3900                         /* Module is SFF-8636 compliant */
3901                         modinfo->type = ETH_MODULE_SFF_8636;
3902                         modinfo->eeprom_len = ICE_MODULE_QSFP_MAX_LEN;
3903                 } else {
3904                         modinfo->type = ETH_MODULE_SFF_8436;
3905                         modinfo->eeprom_len = ICE_MODULE_QSFP_MAX_LEN;
3906                 }
3907                 break;
3908         default:
3909                 netdev_warn(netdev, "SFF Module Type not recognized.\n");
3910                 return -EINVAL;
3911         }
3912         return 0;
3913 }
3914
3915 /**
3916  * ice_get_module_eeprom - fill buffer with SFF EEPROM contents
3917  * @netdev: network interface device structure
3918  * @ee: EEPROM dump request structure
3919  * @data: buffer to be filled with EEPROM contents
3920  */
3921 static int
3922 ice_get_module_eeprom(struct net_device *netdev,
3923                       struct ethtool_eeprom *ee, u8 *data)
3924 {
3925         struct ice_netdev_priv *np = netdev_priv(netdev);
3926         u8 addr = ICE_I2C_EEPROM_DEV_ADDR;
3927         struct ice_vsi *vsi = np->vsi;
3928         struct ice_pf *pf = vsi->back;
3929         struct ice_hw *hw = &pf->hw;
3930         enum ice_status status;
3931         bool is_sfp = false;
3932         unsigned int i;
3933         u16 offset = 0;
3934         u8 value = 0;
3935         u8 page = 0;
3936
3937         status = ice_aq_sff_eeprom(hw, 0, addr, offset, page, 0,
3938                                    &value, 1, 0, NULL);
3939         if (status)
3940                 return -EIO;
3941
3942         if (!ee || !ee->len || !data)
3943                 return -EINVAL;
3944
3945         if (value == ICE_MODULE_TYPE_SFP)
3946                 is_sfp = true;
3947
3948         for (i = 0; i < ee->len; i++) {
3949                 offset = i + ee->offset;
3950
3951                 /* Check if we need to access the other memory page */
3952                 if (is_sfp) {
3953                         if (offset >= ETH_MODULE_SFF_8079_LEN) {
3954                                 offset -= ETH_MODULE_SFF_8079_LEN;
3955                                 addr = ICE_I2C_EEPROM_DEV_ADDR2;
3956                         }
3957                 } else {
3958                         while (offset >= ETH_MODULE_SFF_8436_LEN) {
3959                                 /* Compute memory page number and offset. */
3960                                 offset -= ETH_MODULE_SFF_8436_LEN / 2;
3961                                 page++;
3962                         }
3963                 }
3964
3965                 status = ice_aq_sff_eeprom(hw, 0, addr, offset, page, !is_sfp,
3966                                            &value, 1, 0, NULL);
3967                 if (status)
3968                         value = 0;
3969                 data[i] = value;
3970         }
3971         return 0;
3972 }
3973
3974 static const struct ethtool_ops ice_ethtool_ops = {
3975         .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
3976                                      ETHTOOL_COALESCE_USE_ADAPTIVE |
3977                                      ETHTOOL_COALESCE_RX_USECS_HIGH,
3978         .get_link_ksettings     = ice_get_link_ksettings,
3979         .set_link_ksettings     = ice_set_link_ksettings,
3980         .get_drvinfo            = ice_get_drvinfo,
3981         .get_regs_len           = ice_get_regs_len,
3982         .get_regs               = ice_get_regs,
3983         .get_wol                = ice_get_wol,
3984         .set_wol                = ice_set_wol,
3985         .get_msglevel           = ice_get_msglevel,
3986         .set_msglevel           = ice_set_msglevel,
3987         .self_test              = ice_self_test,
3988         .get_link               = ethtool_op_get_link,
3989         .get_eeprom_len         = ice_get_eeprom_len,
3990         .get_eeprom             = ice_get_eeprom,
3991         .get_coalesce           = ice_get_coalesce,
3992         .set_coalesce           = ice_set_coalesce,
3993         .get_strings            = ice_get_strings,
3994         .set_phys_id            = ice_set_phys_id,
3995         .get_ethtool_stats      = ice_get_ethtool_stats,
3996         .get_priv_flags         = ice_get_priv_flags,
3997         .set_priv_flags         = ice_set_priv_flags,
3998         .get_sset_count         = ice_get_sset_count,
3999         .get_rxnfc              = ice_get_rxnfc,
4000         .set_rxnfc              = ice_set_rxnfc,
4001         .get_ringparam          = ice_get_ringparam,
4002         .set_ringparam          = ice_set_ringparam,
4003         .nway_reset             = ice_nway_reset,
4004         .get_pauseparam         = ice_get_pauseparam,
4005         .set_pauseparam         = ice_set_pauseparam,
4006         .get_rxfh_key_size      = ice_get_rxfh_key_size,
4007         .get_rxfh_indir_size    = ice_get_rxfh_indir_size,
4008         .get_rxfh               = ice_get_rxfh,
4009         .set_rxfh               = ice_set_rxfh,
4010         .get_channels           = ice_get_channels,
4011         .set_channels           = ice_set_channels,
4012         .get_ts_info            = ethtool_op_get_ts_info,
4013         .get_per_queue_coalesce = ice_get_per_q_coalesce,
4014         .set_per_queue_coalesce = ice_set_per_q_coalesce,
4015         .get_fecparam           = ice_get_fecparam,
4016         .set_fecparam           = ice_set_fecparam,
4017         .get_module_info        = ice_get_module_info,
4018         .get_module_eeprom      = ice_get_module_eeprom,
4019 };
4020
4021 static const struct ethtool_ops ice_ethtool_safe_mode_ops = {
4022         .get_link_ksettings     = ice_get_link_ksettings,
4023         .set_link_ksettings     = ice_set_link_ksettings,
4024         .get_drvinfo            = ice_get_drvinfo,
4025         .get_regs_len           = ice_get_regs_len,
4026         .get_regs               = ice_get_regs,
4027         .get_wol                = ice_get_wol,
4028         .set_wol                = ice_set_wol,
4029         .get_msglevel           = ice_get_msglevel,
4030         .set_msglevel           = ice_set_msglevel,
4031         .get_link               = ethtool_op_get_link,
4032         .get_eeprom_len         = ice_get_eeprom_len,
4033         .get_eeprom             = ice_get_eeprom,
4034         .get_strings            = ice_get_strings,
4035         .get_ethtool_stats      = ice_get_ethtool_stats,
4036         .get_sset_count         = ice_get_sset_count,
4037         .get_ringparam          = ice_get_ringparam,
4038         .set_ringparam          = ice_set_ringparam,
4039         .nway_reset             = ice_nway_reset,
4040         .get_channels           = ice_get_channels,
4041 };
4042
4043 /**
4044  * ice_set_ethtool_safe_mode_ops - setup safe mode ethtool ops
4045  * @netdev: network interface device structure
4046  */
4047 void ice_set_ethtool_safe_mode_ops(struct net_device *netdev)
4048 {
4049         netdev->ethtool_ops = &ice_ethtool_safe_mode_ops;
4050 }
4051
4052 /**
4053  * ice_set_ethtool_ops - setup netdev ethtool ops
4054  * @netdev: network interface device structure
4055  *
4056  * setup netdev ethtool ops with ice specific ops
4057  */
4058 void ice_set_ethtool_ops(struct net_device *netdev)
4059 {
4060         netdev->ethtool_ops = &ice_ethtool_ops;
4061 }