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("tx_errors", eth_stats.tx_errors),
  64         ICE_VSI_STAT("tx_linearize", tx_linearize),
  65         ICE_VSI_STAT("tx_busy", tx_busy),
  66         ICE_VSI_STAT("tx_restart", tx_restart),
  67 };
  68
  69 enum ice_ethtool_test_id {
  70         ICE_ETH_TEST_REG = 0,
  71         ICE_ETH_TEST_EEPROM,
  72         ICE_ETH_TEST_INTR,
  73         ICE_ETH_TEST_LOOP,
  74         ICE_ETH_TEST_LINK,
  75 };
  76
  77 static const char ice_gstrings_test[][ETH_GSTRING_LEN] = {
  78         "Register test  (offline)",
  79         "EEPROM test    (offline)",
  80         "Interrupt test (offline)",
  81         "Loopback test  (offline)",
  82         "Link test   (on/offline)",
  83 };
  84
  85 #define ICE_TEST_LEN (sizeof(ice_gstrings_test) / ETH_GSTRING_LEN)
  86
  87 /* These PF_STATs might look like duplicates of some NETDEV_STATs,
  88  * but they aren't. This device is capable of supporting multiple
  89  * VSIs/netdevs on a single PF. The NETDEV_STATs are for individual
  90  * netdevs whereas the PF_STATs are for the physical function that's
  91  * hosting these netdevs.
  92  *
  93  * The PF_STATs are appended to the netdev stats only when ethtool -S
  94  * is queried on the base PF netdev.
  95  */
  96 static const struct ice_stats ice_gstrings_pf_stats[] = {
  97         ICE_PF_STAT("rx_bytes.nic", stats.eth.rx_bytes),
  98         ICE_PF_STAT("tx_bytes.nic", stats.eth.tx_bytes),
  99         ICE_PF_STAT("rx_unicast.nic", stats.eth.rx_unicast),
 100         ICE_PF_STAT("tx_unicast.nic", stats.eth.tx_unicast),
 101         ICE_PF_STAT("rx_multicast.nic", stats.eth.rx_multicast),
 102         ICE_PF_STAT("tx_multicast.nic", stats.eth.tx_multicast),
 103         ICE_PF_STAT("rx_broadcast.nic", stats.eth.rx_broadcast),
 104         ICE_PF_STAT("tx_broadcast.nic", stats.eth.tx_broadcast),
 105         ICE_PF_STAT("tx_errors.nic", stats.eth.tx_errors),
 106         ICE_PF_STAT("tx_timeout.nic", tx_timeout_count),
 107         ICE_PF_STAT("rx_size_64.nic", stats.rx_size_64),
 108         ICE_PF_STAT("tx_size_64.nic", stats.tx_size_64),
 109         ICE_PF_STAT("rx_size_127.nic", stats.rx_size_127),
 110         ICE_PF_STAT("tx_size_127.nic", stats.tx_size_127),
 111         ICE_PF_STAT("rx_size_255.nic", stats.rx_size_255),
 112         ICE_PF_STAT("tx_size_255.nic", stats.tx_size_255),
 113         ICE_PF_STAT("rx_size_511.nic", stats.rx_size_511),
 114         ICE_PF_STAT("tx_size_511.nic", stats.tx_size_511),
 115         ICE_PF_STAT("rx_size_1023.nic", stats.rx_size_1023),
 116         ICE_PF_STAT("tx_size_1023.nic", stats.tx_size_1023),
 117         ICE_PF_STAT("rx_size_1522.nic", stats.rx_size_1522),
 118         ICE_PF_STAT("tx_size_1522.nic", stats.tx_size_1522),
 119         ICE_PF_STAT("rx_size_big.nic", stats.rx_size_big),
 120         ICE_PF_STAT("tx_size_big.nic", stats.tx_size_big),
 121         ICE_PF_STAT("link_xon_rx.nic", stats.link_xon_rx),
 122         ICE_PF_STAT("link_xon_tx.nic", stats.link_xon_tx),
 123         ICE_PF_STAT("link_xoff_rx.nic", stats.link_xoff_rx),
 124         ICE_PF_STAT("link_xoff_tx.nic", stats.link_xoff_tx),
 125         ICE_PF_STAT("tx_dropped_link_down.nic", stats.tx_dropped_link_down),
 126         ICE_PF_STAT("rx_undersize.nic", stats.rx_undersize),
 127         ICE_PF_STAT("rx_fragments.nic", stats.rx_fragments),
 128         ICE_PF_STAT("rx_oversize.nic", stats.rx_oversize),
 129         ICE_PF_STAT("rx_jabber.nic", stats.rx_jabber),
 130         ICE_PF_STAT("rx_csum_bad.nic", hw_csum_rx_error),
 131         ICE_PF_STAT("rx_length_errors.nic", stats.rx_len_errors),
 132         ICE_PF_STAT("rx_dropped.nic", stats.eth.rx_discards),
 133         ICE_PF_STAT("rx_crc_errors.nic", stats.crc_errors),
 134         ICE_PF_STAT("illegal_bytes.nic", stats.illegal_bytes),
 135         ICE_PF_STAT("mac_local_faults.nic", stats.mac_local_faults),
 136         ICE_PF_STAT("mac_remote_faults.nic", stats.mac_remote_faults),
 137         ICE_PF_STAT("fdir_sb_match.nic", stats.fd_sb_match),
 138         ICE_PF_STAT("fdir_sb_status.nic", stats.fd_sb_status),
 139 };
 140
 141 static const u32 ice_regs_dump_list[] = {
 142         PFGEN_STATE,
 143         PRTGEN_STATUS,
 144         QRX_CTRL(0),
 145         QINT_TQCTL(0),
 146         QINT_RQCTL(0),
 147         PFINT_OICR_ENA,
 148         QRX_ITR(0),
 149 };
 150
 151 struct ice_priv_flag {
 152         char name[ETH_GSTRING_LEN];
 153         u32 bitno;                      /* bit position in pf->flags */
 154 };
 155
 156 #define ICE_PRIV_FLAG(_name, _bitno) { \
 157         .name = _name, \
 158         .bitno = _bitno, \
 159 }
 160
 161 static const struct ice_priv_flag ice_gstrings_priv_flags[] = {
 162         ICE_PRIV_FLAG("link-down-on-close", ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA),
 163         ICE_PRIV_FLAG("fw-lldp-agent", ICE_FLAG_FW_LLDP_AGENT),
 164         ICE_PRIV_FLAG("vf-true-promisc-support",
 165                       ICE_FLAG_VF_TRUE_PROMISC_ENA),
 166         ICE_PRIV_FLAG("mdd-auto-reset-vf", ICE_FLAG_MDD_AUTO_RESET_VF),
 167         ICE_PRIV_FLAG("legacy-rx", ICE_FLAG_LEGACY_RX),
 168 };
 169
 170 #define ICE_PRIV_FLAG_ARRAY_SIZE        ARRAY_SIZE(ice_gstrings_priv_flags)
 171
 172 static void
 173 ice_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
 174 {
 175         struct ice_netdev_priv *np = netdev_priv(netdev);
 176         struct ice_vsi *vsi = np->vsi;
 177         struct ice_pf *pf = vsi->back;
 178         struct ice_hw *hw = &pf->hw;
 179         struct ice_orom_info *orom;
 180         struct ice_nvm_info *nvm;
 181
 182         nvm = &hw->flash.nvm;
 183         orom = &hw->flash.orom;
 184
 185         strscpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver));
 186
 187         /* Display NVM version (from which the firmware version can be
 188          * determined) which contains more pertinent information.
 189          */
 190         snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
 191                  "%x.%02x 0x%x %d.%d.%d", nvm->major, nvm->minor,
 192                  nvm->eetrack, orom->major, orom->build, orom->patch);
 193
 194         strscpy(drvinfo->bus_info, pci_name(pf->pdev),
 195                 sizeof(drvinfo->bus_info));
 196         drvinfo->n_priv_flags = ICE_PRIV_FLAG_ARRAY_SIZE;
 197 }
 198
 199 static int ice_get_regs_len(struct net_device __always_unused *netdev)
 200 {
 201         return sizeof(ice_regs_dump_list);
 202 }
 203
 204 static void
 205 ice_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p)
 206 {
 207         struct ice_netdev_priv *np = netdev_priv(netdev);
 208         struct ice_pf *pf = np->vsi->back;
 209         struct ice_hw *hw = &pf->hw;
 210         u32 *regs_buf = (u32 *)p;
 211         unsigned int i;
 212
 213         regs->version = 1;
 214
 215         for (i = 0; i < ARRAY_SIZE(ice_regs_dump_list); ++i)
 216                 regs_buf[i] = rd32(hw, ice_regs_dump_list[i]);
 217 }
 218
 219 static u32 ice_get_msglevel(struct net_device *netdev)
 220 {
 221         struct ice_netdev_priv *np = netdev_priv(netdev);
 222         struct ice_pf *pf = np->vsi->back;
 223
 224 #ifndef CONFIG_DYNAMIC_DEBUG
 225         if (pf->hw.debug_mask)
 226                 netdev_info(netdev, "hw debug_mask: 0x%llX\n",
 227                             pf->hw.debug_mask);
 228 #endif /* !CONFIG_DYNAMIC_DEBUG */
 229
 230         return pf->msg_enable;
 231 }
 232
 233 static void ice_set_msglevel(struct net_device *netdev, u32 data)
 234 {
 235         struct ice_netdev_priv *np = netdev_priv(netdev);
 236         struct ice_pf *pf = np->vsi->back;
 237
 238 #ifndef CONFIG_DYNAMIC_DEBUG
 239         if (ICE_DBG_USER & data)
 240                 pf->hw.debug_mask = data;
 241         else
 242                 pf->msg_enable = data;
 243 #else
 244         pf->msg_enable = data;
 245 #endif /* !CONFIG_DYNAMIC_DEBUG */
 246 }
 247
 248 static int ice_get_eeprom_len(struct net_device *netdev)
 249 {
 250         struct ice_netdev_priv *np = netdev_priv(netdev);
 251         struct ice_pf *pf = np->vsi->back;
 252
 253         return (int)pf->hw.flash.flash_size;
 254 }
 255
 256 static int
 257 ice_get_eeprom(struct net_device *netdev, struct ethtool_eeprom *eeprom,
 258                u8 *bytes)
 259 {
 260         struct ice_netdev_priv *np = netdev_priv(netdev);
 261         struct ice_vsi *vsi = np->vsi;
 262         struct ice_pf *pf = vsi->back;
 263         struct ice_hw *hw = &pf->hw;
 264         enum ice_status status;
 265         struct device *dev;
 266         int ret = 0;
 267         u8 *buf;
 268
 269         dev = ice_pf_to_dev(pf);
 270
 271         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
 272         netdev_dbg(netdev, "GEEPROM cmd 0x%08x, offset 0x%08x, len 0x%08x\n",
 273                    eeprom->cmd, eeprom->offset, eeprom->len);
 274
 275         buf = kzalloc(eeprom->len, GFP_KERNEL);
 276         if (!buf)
 277                 return -ENOMEM;
 278
 279         status = ice_acquire_nvm(hw, ICE_RES_READ);
 280         if (status) {
 281                 dev_err(dev, "ice_acquire_nvm failed, err %s aq_err %s\n",
 282                         ice_stat_str(status),
 283                         ice_aq_str(hw->adminq.sq_last_status));
 284                 ret = -EIO;
 285                 goto out;
 286         }
 287
 288         status = ice_read_flat_nvm(hw, eeprom->offset, &eeprom->len, buf,
 289                                    false);
 290         if (status) {
 291                 dev_err(dev, "ice_read_flat_nvm failed, err %s aq_err %s\n",
 292                         ice_stat_str(status),
 293                         ice_aq_str(hw->adminq.sq_last_status));
 294                 ret = -EIO;
 295                 goto release;
 296         }
 297
 298         memcpy(bytes, buf, eeprom->len);
 299 release:
 300         ice_release_nvm(hw);
 301 out:
 302         kfree(buf);
 303         return ret;
 304 }
 305
 306 /**
 307  * ice_active_vfs - check if there are any active VFs
 308  * @pf: board private structure
 309  *
 310  * Returns true if an active VF is found, otherwise returns false
 311  */
 312 static bool ice_active_vfs(struct ice_pf *pf)
 313 {
 314         unsigned int i;
 315
 316         ice_for_each_vf(pf, i) {
 317                 struct ice_vf *vf = &pf->vf[i];
 318
 319                 if (test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states))
 320                         return true;
 321         }
 322
 323         return false;
 324 }
 325
 326 /**
 327  * ice_link_test - perform a link test on a given net_device
 328  * @netdev: network interface device structure
 329  *
 330  * This function performs one of the self-tests required by ethtool.
 331  * Returns 0 on success, non-zero on failure.
 332  */
 333 static u64 ice_link_test(struct net_device *netdev)
 334 {
 335         struct ice_netdev_priv *np = netdev_priv(netdev);
 336         enum ice_status status;
 337         bool link_up = false;
 338
 339         netdev_info(netdev, "link test\n");
 340         status = ice_get_link_status(np->vsi->port_info, &link_up);
 341         if (status) {
 342                 netdev_err(netdev, "link query error, status = %s\n",
 343                            ice_stat_str(status));
 344                 return 1;
 345         }
 346
 347         if (!link_up)
 348                 return 2;
 349
 350         return 0;
 351 }
 352
 353 /**
 354  * ice_eeprom_test - perform an EEPROM test on a given net_device
 355  * @netdev: network interface device structure
 356  *
 357  * This function performs one of the self-tests required by ethtool.
 358  * Returns 0 on success, non-zero on failure.
 359  */
 360 static u64 ice_eeprom_test(struct net_device *netdev)
 361 {
 362         struct ice_netdev_priv *np = netdev_priv(netdev);
 363         struct ice_pf *pf = np->vsi->back;
 364
 365         netdev_info(netdev, "EEPROM test\n");
 366         return !!(ice_nvm_validate_checksum(&pf->hw));
 367 }
 368
 369 /**
 370  * ice_reg_pattern_test
 371  * @hw: pointer to the HW struct
 372  * @reg: reg to be tested
 373  * @mask: bits to be touched
 374  */
 375 static int ice_reg_pattern_test(struct ice_hw *hw, u32 reg, u32 mask)
 376 {
 377         struct ice_pf *pf = (struct ice_pf *)hw->back;
 378         struct device *dev = ice_pf_to_dev(pf);
 379         static const u32 patterns[] = {
 380                 0x5A5A5A5A, 0xA5A5A5A5,
 381                 0x00000000, 0xFFFFFFFF
 382         };
 383         u32 val, orig_val;
 384         unsigned int i;
 385
 386         orig_val = rd32(hw, reg);
 387         for (i = 0; i < ARRAY_SIZE(patterns); ++i) {
 388                 u32 pattern = patterns[i] & mask;
 389
 390                 wr32(hw, reg, pattern);
 391                 val = rd32(hw, reg);
 392                 if (val == pattern)
 393                         continue;
 394                 dev_err(dev, "%s: reg pattern test failed - reg 0x%08x pat 0x%08x val 0x%08x\n"
 395                         , __func__, reg, pattern, val);
 396                 return 1;
 397         }
 398
 399         wr32(hw, reg, orig_val);
 400         val = rd32(hw, reg);
 401         if (val != orig_val) {
 402                 dev_err(dev, "%s: reg restore test failed - reg 0x%08x orig 0x%08x val 0x%08x\n"
 403                         , __func__, reg, orig_val, val);
 404                 return 1;
 405         }
 406
 407         return 0;
 408 }
 409
 410 /**
 411  * ice_reg_test - perform a register test on a given net_device
 412  * @netdev: network interface device structure
 413  *
 414  * This function performs one of the self-tests required by ethtool.
 415  * Returns 0 on success, non-zero on failure.
 416  */
 417 static u64 ice_reg_test(struct net_device *netdev)
 418 {
 419         struct ice_netdev_priv *np = netdev_priv(netdev);
 420         struct ice_hw *hw = np->vsi->port_info->hw;
 421         u32 int_elements = hw->func_caps.common_cap.num_msix_vectors ?
 422                 hw->func_caps.common_cap.num_msix_vectors - 1 : 1;
 423         struct ice_diag_reg_test_info {
 424                 u32 address;
 425                 u32 mask;
 426                 u32 elem_num;
 427                 u32 elem_size;
 428         } ice_reg_list[] = {
 429                 {GLINT_ITR(0, 0), 0x00000fff, int_elements,
 430                         GLINT_ITR(0, 1) - GLINT_ITR(0, 0)},
 431                 {GLINT_ITR(1, 0), 0x00000fff, int_elements,
 432                         GLINT_ITR(1, 1) - GLINT_ITR(1, 0)},
 433                 {GLINT_ITR(0, 0), 0x00000fff, int_elements,
 434                         GLINT_ITR(2, 1) - GLINT_ITR(2, 0)},
 435                 {GLINT_CTL, 0xffff0001, 1, 0}
 436         };
 437         unsigned int i;
 438
 439         netdev_dbg(netdev, "Register test\n");
 440         for (i = 0; i < ARRAY_SIZE(ice_reg_list); ++i) {
 441                 u32 j;
 442
 443                 for (j = 0; j < ice_reg_list[i].elem_num; ++j) {
 444                         u32 mask = ice_reg_list[i].mask;
 445                         u32 reg = ice_reg_list[i].address +
 446                                 (j * ice_reg_list[i].elem_size);
 447
 448                         /* bail on failure (non-zero return) */
 449                         if (ice_reg_pattern_test(hw, reg, mask))
 450                                 return 1;
 451                 }
 452         }
 453
 454         return 0;
 455 }
 456
 457 /**
 458  * ice_lbtest_prepare_rings - configure Tx/Rx test rings
 459  * @vsi: pointer to the VSI structure
 460  *
 461  * Function configures rings of a VSI for loopback test without
 462  * enabling interrupts or informing the kernel about new queues.
 463  *
 464  * Returns 0 on success, negative on failure.
 465  */
 466 static int ice_lbtest_prepare_rings(struct ice_vsi *vsi)
 467 {
 468         int status;
 469
 470         status = ice_vsi_setup_tx_rings(vsi);
 471         if (status)
 472                 goto err_setup_tx_ring;
 473
 474         status = ice_vsi_setup_rx_rings(vsi);
 475         if (status)
 476                 goto err_setup_rx_ring;
 477
 478         status = ice_vsi_cfg(vsi);
 479         if (status)
 480                 goto err_setup_rx_ring;
 481
 482         status = ice_vsi_start_all_rx_rings(vsi);
 483         if (status)
 484                 goto err_start_rx_ring;
 485
 486         return status;
 487
 488 err_start_rx_ring:
 489         ice_vsi_free_rx_rings(vsi);
 490 err_setup_rx_ring:
 491         ice_vsi_stop_lan_tx_rings(vsi, ICE_NO_RESET, 0);
 492 err_setup_tx_ring:
 493         ice_vsi_free_tx_rings(vsi);
 494
 495         return status;
 496 }
 497
 498 /**
 499  * ice_lbtest_disable_rings - disable Tx/Rx test rings after loopback test
 500  * @vsi: pointer to the VSI structure
 501  *
 502  * Function stops and frees VSI rings after a loopback test.
 503  * Returns 0 on success, negative on failure.
 504  */
 505 static int ice_lbtest_disable_rings(struct ice_vsi *vsi)
 506 {
 507         int status;
 508
 509         status = ice_vsi_stop_lan_tx_rings(vsi, ICE_NO_RESET, 0);
 510         if (status)
 511                 netdev_err(vsi->netdev, "Failed to stop Tx rings, VSI %d error %d\n",
 512                            vsi->vsi_num, status);
 513
 514         status = ice_vsi_stop_all_rx_rings(vsi);
 515         if (status)
 516                 netdev_err(vsi->netdev, "Failed to stop Rx rings, VSI %d error %d\n",
 517                            vsi->vsi_num, status);
 518
 519         ice_vsi_free_tx_rings(vsi);
 520         ice_vsi_free_rx_rings(vsi);
 521
 522         return status;
 523 }
 524
 525 /**
 526  * ice_lbtest_create_frame - create test packet
 527  * @pf: pointer to the PF structure
 528  * @ret_data: allocated frame buffer
 529  * @size: size of the packet data
 530  *
 531  * Function allocates a frame with a test pattern on specific offsets.
 532  * Returns 0 on success, non-zero on failure.
 533  */
 534 static int ice_lbtest_create_frame(struct ice_pf *pf, u8 **ret_data, u16 size)
 535 {
 536         u8 *data;
 537
 538         if (!pf)
 539                 return -EINVAL;
 540
 541         data = devm_kzalloc(ice_pf_to_dev(pf), size, GFP_KERNEL);
 542         if (!data)
 543                 return -ENOMEM;
 544
 545         /* Since the ethernet test frame should always be at least
 546          * 64 bytes long, fill some octets in the payload with test data.
 547          */
 548         memset(data, 0xFF, size);
 549         data[32] = 0xDE;
 550         data[42] = 0xAD;
 551         data[44] = 0xBE;
 552         data[46] = 0xEF;
 553
 554         *ret_data = data;
 555
 556         return 0;
 557 }
 558
 559 /**
 560  * ice_lbtest_check_frame - verify received loopback frame
 561  * @frame: pointer to the raw packet data
 562  *
 563  * Function verifies received test frame with a pattern.
 564  * Returns true if frame matches the pattern, false otherwise.
 565  */
 566 static bool ice_lbtest_check_frame(u8 *frame)
 567 {
 568         /* Validate bytes of a frame under offsets chosen earlier */
 569         if (frame[32] == 0xDE &&
 570             frame[42] == 0xAD &&
 571             frame[44] == 0xBE &&
 572             frame[46] == 0xEF &&
 573             frame[48] == 0xFF)
 574                 return true;
 575
 576         return false;
 577 }
 578
 579 /**
 580  * ice_diag_send - send test frames to the test ring
 581  * @tx_ring: pointer to the transmit ring
 582  * @data: pointer to the raw packet data
 583  * @size: size of the packet to send
 584  *
 585  * Function sends loopback packets on a test Tx ring.
 586  */
 587 static int ice_diag_send(struct ice_ring *tx_ring, u8 *data, u16 size)
 588 {
 589         struct ice_tx_desc *tx_desc;
 590         struct ice_tx_buf *tx_buf;
 591         dma_addr_t dma;
 592         u64 td_cmd;
 593
 594         tx_desc = ICE_TX_DESC(tx_ring, tx_ring->next_to_use);
 595         tx_buf = &tx_ring->tx_buf[tx_ring->next_to_use];
 596
 597         dma = dma_map_single(tx_ring->dev, data, size, DMA_TO_DEVICE);
 598         if (dma_mapping_error(tx_ring->dev, dma))
 599                 return -EINVAL;
 600
 601         tx_desc->buf_addr = cpu_to_le64(dma);
 602
 603         /* These flags are required for a descriptor to be pushed out */
 604         td_cmd = (u64)(ICE_TX_DESC_CMD_EOP | ICE_TX_DESC_CMD_RS);
 605         tx_desc->cmd_type_offset_bsz =
 606                 cpu_to_le64(ICE_TX_DESC_DTYPE_DATA |
 607                             (td_cmd << ICE_TXD_QW1_CMD_S) |
 608                             ((u64)0 << ICE_TXD_QW1_OFFSET_S) |
 609                             ((u64)size << ICE_TXD_QW1_TX_BUF_SZ_S) |
 610                             ((u64)0 << ICE_TXD_QW1_L2TAG1_S));
 611
 612         tx_buf->next_to_watch = tx_desc;
 613
 614         /* Force memory write to complete before letting h/w know
 615          * there are new descriptors to fetch.
 616          */
 617         wmb();
 618
 619         tx_ring->next_to_use++;
 620         if (tx_ring->next_to_use >= tx_ring->count)
 621                 tx_ring->next_to_use = 0;
 622
 623         writel_relaxed(tx_ring->next_to_use, tx_ring->tail);
 624
 625         /* Wait until the packets get transmitted to the receive queue. */
 626         usleep_range(1000, 2000);
 627         dma_unmap_single(tx_ring->dev, dma, size, DMA_TO_DEVICE);
 628
 629         return 0;
 630 }
 631
 632 #define ICE_LB_FRAME_SIZE 64
 633 /**
 634  * ice_lbtest_receive_frames - receive and verify test frames
 635  * @rx_ring: pointer to the receive ring
 636  *
 637  * Function receives loopback packets and verify their correctness.
 638  * Returns number of received valid frames.
 639  */
 640 static int ice_lbtest_receive_frames(struct ice_ring *rx_ring)
 641 {
 642         struct ice_rx_buf *rx_buf;
 643         int valid_frames, i;
 644         u8 *received_buf;
 645
 646         valid_frames = 0;
 647
 648         for (i = 0; i < rx_ring->count; i++) {
 649                 union ice_32b_rx_flex_desc *rx_desc;
 650
 651                 rx_desc = ICE_RX_DESC(rx_ring, i);
 652
 653                 if (!(rx_desc->wb.status_error0 &
 654                     cpu_to_le16(ICE_TX_DESC_CMD_EOP | ICE_TX_DESC_CMD_RS)))
 655                         continue;
 656
 657                 rx_buf = &rx_ring->rx_buf[i];
 658                 received_buf = page_address(rx_buf->page) + rx_buf->page_offset;
 659
 660                 if (ice_lbtest_check_frame(received_buf))
 661                         valid_frames++;
 662         }
 663
 664         return valid_frames;
 665 }
 666
 667 /**
 668  * ice_loopback_test - perform a loopback test on a given net_device
 669  * @netdev: network interface device structure
 670  *
 671  * This function performs one of the self-tests required by ethtool.
 672  * Returns 0 on success, non-zero on failure.
 673  */
 674 static u64 ice_loopback_test(struct net_device *netdev)
 675 {
 676         struct ice_netdev_priv *np = netdev_priv(netdev);
 677         struct ice_vsi *orig_vsi = np->vsi, *test_vsi;
 678         struct ice_pf *pf = orig_vsi->back;
 679         struct ice_ring *tx_ring, *rx_ring;
 680         u8 broadcast[ETH_ALEN], ret = 0;
 681         int num_frames, valid_frames;
 682         struct device *dev;
 683         u8 *tx_frame;
 684         int i;
 685
 686         dev = ice_pf_to_dev(pf);
 687         netdev_info(netdev, "loopback test\n");
 688
 689         test_vsi = ice_lb_vsi_setup(pf, pf->hw.port_info);
 690         if (!test_vsi) {
 691                 netdev_err(netdev, "Failed to create a VSI for the loopback test\n");
 692                 return 1;
 693         }
 694
 695         test_vsi->netdev = netdev;
 696         tx_ring = test_vsi->tx_rings[0];
 697         rx_ring = test_vsi->rx_rings[0];
 698
 699         if (ice_lbtest_prepare_rings(test_vsi)) {
 700                 ret = 2;
 701                 goto lbtest_vsi_close;
 702         }
 703
 704         if (ice_alloc_rx_bufs(rx_ring, rx_ring->count)) {
 705                 ret = 3;
 706                 goto lbtest_rings_dis;
 707         }
 708
 709         /* Enable MAC loopback in firmware */
 710         if (ice_aq_set_mac_loopback(&pf->hw, true, NULL)) {
 711                 ret = 4;
 712                 goto lbtest_mac_dis;
 713         }
 714
 715         /* Test VSI needs to receive broadcast packets */
 716         eth_broadcast_addr(broadcast);
 717         if (ice_fltr_add_mac(test_vsi, broadcast, ICE_FWD_TO_VSI)) {
 718                 ret = 5;
 719                 goto lbtest_mac_dis;
 720         }
 721
 722         if (ice_lbtest_create_frame(pf, &tx_frame, ICE_LB_FRAME_SIZE)) {
 723                 ret = 7;
 724                 goto remove_mac_filters;
 725         }
 726
 727         num_frames = min_t(int, tx_ring->count, 32);
 728         for (i = 0; i < num_frames; i++) {
 729                 if (ice_diag_send(tx_ring, tx_frame, ICE_LB_FRAME_SIZE)) {
 730                         ret = 8;
 731                         goto lbtest_free_frame;
 732                 }
 733         }
 734
 735         valid_frames = ice_lbtest_receive_frames(rx_ring);
 736         if (!valid_frames)
 737                 ret = 9;
 738         else if (valid_frames != num_frames)
 739                 ret = 10;
 740
 741 lbtest_free_frame:
 742         devm_kfree(dev, tx_frame);
 743 remove_mac_filters:
 744         if (ice_fltr_remove_mac(test_vsi, broadcast, ICE_FWD_TO_VSI))
 745                 netdev_err(netdev, "Could not remove MAC filter for the test VSI\n");
 746 lbtest_mac_dis:
 747         /* Disable MAC loopback after the test is completed. */
 748         if (ice_aq_set_mac_loopback(&pf->hw, false, NULL))
 749                 netdev_err(netdev, "Could not disable MAC loopback\n");
 750 lbtest_rings_dis:
 751         if (ice_lbtest_disable_rings(test_vsi))
 752                 netdev_err(netdev, "Could not disable test rings\n");
 753 lbtest_vsi_close:
 754         test_vsi->netdev = NULL;
 755         if (ice_vsi_release(test_vsi))
 756                 netdev_err(netdev, "Failed to remove the test VSI\n");
 757
 758         return ret;
 759 }
 760
 761 /**
 762  * ice_intr_test - perform an interrupt test on a given net_device
 763  * @netdev: network interface device structure
 764  *
 765  * This function performs one of the self-tests required by ethtool.
 766  * Returns 0 on success, non-zero on failure.
 767  */
 768 static u64 ice_intr_test(struct net_device *netdev)
 769 {
 770         struct ice_netdev_priv *np = netdev_priv(netdev);
 771         struct ice_pf *pf = np->vsi->back;
 772         u16 swic_old = pf->sw_int_count;
 773
 774         netdev_info(netdev, "interrupt test\n");
 775
 776         wr32(&pf->hw, GLINT_DYN_CTL(pf->oicr_idx),
 777              GLINT_DYN_CTL_SW_ITR_INDX_M |
 778              GLINT_DYN_CTL_INTENA_MSK_M |
 779              GLINT_DYN_CTL_SWINT_TRIG_M);
 780
 781         usleep_range(1000, 2000);
 782         return (swic_old == pf->sw_int_count);
 783 }
 784
 785 /**
 786  * ice_self_test - handler function for performing a self-test by ethtool
 787  * @netdev: network interface device structure
 788  * @eth_test: ethtool_test structure
 789  * @data: required by ethtool.self_test
 790  *
 791  * This function is called after invoking 'ethtool -t devname' command where
 792  * devname is the name of the network device on which ethtool should operate.
 793  * It performs a set of self-tests to check if a device works properly.
 794  */
 795 static void
 796 ice_self_test(struct net_device *netdev, struct ethtool_test *eth_test,
 797               u64 *data)
 798 {
 799         struct ice_netdev_priv *np = netdev_priv(netdev);
 800         bool if_running = netif_running(netdev);
 801         struct ice_pf *pf = np->vsi->back;
 802         struct device *dev;
 803
 804         dev = ice_pf_to_dev(pf);
 805
 806         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
 807                 netdev_info(netdev, "offline testing starting\n");
 808
 809                 set_bit(ICE_TESTING, pf->state);
 810
 811                 if (ice_active_vfs(pf)) {
 812                         dev_warn(dev, "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");
 813                         data[ICE_ETH_TEST_REG] = 1;
 814                         data[ICE_ETH_TEST_EEPROM] = 1;
 815                         data[ICE_ETH_TEST_INTR] = 1;
 816                         data[ICE_ETH_TEST_LOOP] = 1;
 817                         data[ICE_ETH_TEST_LINK] = 1;
 818                         eth_test->flags |= ETH_TEST_FL_FAILED;
 819                         clear_bit(ICE_TESTING, pf->state);
 820                         goto skip_ol_tests;
 821                 }
 822                 /* If the device is online then take it offline */
 823                 if (if_running)
 824                         /* indicate we're in test mode */
 825                         ice_stop(netdev);
 826
 827                 data[ICE_ETH_TEST_LINK] = ice_link_test(netdev);
 828                 data[ICE_ETH_TEST_EEPROM] = ice_eeprom_test(netdev);
 829                 data[ICE_ETH_TEST_INTR] = ice_intr_test(netdev);
 830                 data[ICE_ETH_TEST_LOOP] = ice_loopback_test(netdev);
 831                 data[ICE_ETH_TEST_REG] = ice_reg_test(netdev);
 832
 833                 if (data[ICE_ETH_TEST_LINK] ||
 834                     data[ICE_ETH_TEST_EEPROM] ||
 835                     data[ICE_ETH_TEST_LOOP] ||
 836                     data[ICE_ETH_TEST_INTR] ||
 837                     data[ICE_ETH_TEST_REG])
 838                         eth_test->flags |= ETH_TEST_FL_FAILED;
 839
 840                 clear_bit(ICE_TESTING, pf->state);
 841
 842                 if (if_running) {
 843                         int status = ice_open(netdev);
 844
 845                         if (status) {
 846                                 dev_err(dev, "Could not open device %s, err %d\n",
 847                                         pf->int_name, status);
 848                         }
 849                 }
 850         } else {
 851                 /* Online tests */
 852                 netdev_info(netdev, "online testing starting\n");
 853
 854                 data[ICE_ETH_TEST_LINK] = ice_link_test(netdev);
 855                 if (data[ICE_ETH_TEST_LINK])
 856                         eth_test->flags |= ETH_TEST_FL_FAILED;
 857
 858                 /* Offline only tests, not run in online; pass by default */
 859                 data[ICE_ETH_TEST_REG] = 0;
 860                 data[ICE_ETH_TEST_EEPROM] = 0;
 861                 data[ICE_ETH_TEST_INTR] = 0;
 862                 data[ICE_ETH_TEST_LOOP] = 0;
 863         }
 864
 865 skip_ol_tests:
 866         netdev_info(netdev, "testing finished\n");
 867 }
 868
 869 static void ice_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
 870 {
 871         struct ice_netdev_priv *np = netdev_priv(netdev);
 872         struct ice_vsi *vsi = np->vsi;
 873         unsigned int i;
 874         u8 *p = data;
 875
 876         switch (stringset) {
 877         case ETH_SS_STATS:
 878                 for (i = 0; i < ICE_VSI_STATS_LEN; i++)
 879                         ethtool_sprintf(&p,
 880                                         ice_gstrings_vsi_stats[i].stat_string);
 881
 882                 ice_for_each_alloc_txq(vsi, i) {
 883                         ethtool_sprintf(&p, "tx_queue_%u_packets", i);
 884                         ethtool_sprintf(&p, "tx_queue_%u_bytes", i);
 885                 }
 886
 887                 ice_for_each_alloc_rxq(vsi, i) {
 888                         ethtool_sprintf(&p, "rx_queue_%u_packets", i);
 889                         ethtool_sprintf(&p, "rx_queue_%u_bytes", i);
 890                 }
 891
 892                 if (vsi->type != ICE_VSI_PF)
 893                         return;
 894
 895                 for (i = 0; i < ICE_PF_STATS_LEN; i++)
 896                         ethtool_sprintf(&p,
 897                                         ice_gstrings_pf_stats[i].stat_string);
 898
 899                 for (i = 0; i < ICE_MAX_USER_PRIORITY; i++) {
 900                         ethtool_sprintf(&p, "tx_priority_%u_xon.nic", i);
 901                         ethtool_sprintf(&p, "tx_priority_%u_xoff.nic", i);
 902                 }
 903                 for (i = 0; i < ICE_MAX_USER_PRIORITY; i++) {
 904                         ethtool_sprintf(&p, "rx_priority_%u_xon.nic", i);
 905                         ethtool_sprintf(&p, "rx_priority_%u_xoff.nic", i);
 906                 }
 907                 break;
 908         case ETH_SS_TEST:
 909                 memcpy(data, ice_gstrings_test, ICE_TEST_LEN * ETH_GSTRING_LEN);
 910                 break;
 911         case ETH_SS_PRIV_FLAGS:
 912                 for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++)
 913                         ethtool_sprintf(&p, ice_gstrings_priv_flags[i].name);
 914                 break;
 915         default:
 916                 break;
 917         }
 918 }
 919
 920 static int
 921 ice_set_phys_id(struct net_device *netdev, enum ethtool_phys_id_state state)
 922 {
 923         struct ice_netdev_priv *np = netdev_priv(netdev);
 924         bool led_active;
 925
 926         switch (state) {
 927         case ETHTOOL_ID_ACTIVE:
 928                 led_active = true;
 929                 break;
 930         case ETHTOOL_ID_INACTIVE:
 931                 led_active = false;
 932                 break;
 933         default:
 934                 return -EINVAL;
 935         }
 936
 937         if (ice_aq_set_port_id_led(np->vsi->port_info, !led_active, NULL))
 938                 return -EIO;
 939
 940         return 0;
 941 }
 942
 943 /**
 944  * ice_set_fec_cfg - Set link FEC options
 945  * @netdev: network interface device structure
 946  * @req_fec: FEC mode to configure
 947  */
 948 static int ice_set_fec_cfg(struct net_device *netdev, enum ice_fec_mode req_fec)
 949 {
 950         struct ice_netdev_priv *np = netdev_priv(netdev);
 951         struct ice_aqc_set_phy_cfg_data config = { 0 };
 952         struct ice_vsi *vsi = np->vsi;
 953         struct ice_port_info *pi;
 954
 955         pi = vsi->port_info;
 956         if (!pi)
 957                 return -EOPNOTSUPP;
 958
 959         /* Changing the FEC parameters is not supported if not the PF VSI */
 960         if (vsi->type != ICE_VSI_PF) {
 961                 netdev_info(netdev, "Changing FEC parameters only supported for PF VSI\n");
 962                 return -EOPNOTSUPP;
 963         }
 964
 965         /* Proceed only if requesting different FEC mode */
 966         if (pi->phy.curr_user_fec_req == req_fec)
 967                 return 0;
 968
 969         /* Copy the current user PHY configuration. The current user PHY
 970          * configuration is initialized during probe from PHY capabilities
 971          * software mode, and updated on set PHY configuration.
 972          */
 973         memcpy(&config, &pi->phy.curr_user_phy_cfg, sizeof(config));
 974
 975         ice_cfg_phy_fec(pi, &config, req_fec);
 976         config.caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
 977
 978         if (ice_aq_set_phy_cfg(pi->hw, pi, &config, NULL))
 979                 return -EAGAIN;
 980
 981         /* Save requested FEC config */
 982         pi->phy.curr_user_fec_req = req_fec;
 983
 984         return 0;
 985 }
 986
 987 /**
 988  * ice_set_fecparam - Set FEC link options
 989  * @netdev: network interface device structure
 990  * @fecparam: Ethtool structure to retrieve FEC parameters
 991  */
 992 static int
 993 ice_set_fecparam(struct net_device *netdev, struct ethtool_fecparam *fecparam)
 994 {
 995         struct ice_netdev_priv *np = netdev_priv(netdev);
 996         struct ice_vsi *vsi = np->vsi;
 997         enum ice_fec_mode fec;
 998
 999         switch (fecparam->fec) {
1000         case ETHTOOL_FEC_AUTO:
1001                 fec = ICE_FEC_AUTO;
1002                 break;
1003         case ETHTOOL_FEC_RS:
1004                 fec = ICE_FEC_RS;
1005                 break;
1006         case ETHTOOL_FEC_BASER:
1007                 fec = ICE_FEC_BASER;
1008                 break;
1009         case ETHTOOL_FEC_OFF:
1010         case ETHTOOL_FEC_NONE:
1011                 fec = ICE_FEC_NONE;
1012                 break;
1013         default:
1014                 dev_warn(ice_pf_to_dev(vsi->back), "Unsupported FEC mode: %d\n",
1015                          fecparam->fec);
1016                 return -EINVAL;
1017         }
1018
1019         return ice_set_fec_cfg(netdev, fec);
1020 }
1021
1022 /**
1023  * ice_get_fecparam - Get link FEC options
1024  * @netdev: network interface device structure
1025  * @fecparam: Ethtool structure to retrieve FEC parameters
1026  */
1027 static int
1028 ice_get_fecparam(struct net_device *netdev, struct ethtool_fecparam *fecparam)
1029 {
1030         struct ice_netdev_priv *np = netdev_priv(netdev);
1031         struct ice_aqc_get_phy_caps_data *caps;
1032         struct ice_link_status *link_info;
1033         struct ice_vsi *vsi = np->vsi;
1034         struct ice_port_info *pi;
1035         enum ice_status status;
1036         int err = 0;
1037
1038         pi = vsi->port_info;
1039
1040         if (!pi)
1041                 return -EOPNOTSUPP;
1042         link_info = &pi->phy.link_info;
1043
1044         /* Set FEC mode based on negotiated link info */
1045         switch (link_info->fec_info) {
1046         case ICE_AQ_LINK_25G_KR_FEC_EN:
1047                 fecparam->active_fec = ETHTOOL_FEC_BASER;
1048                 break;
1049         case ICE_AQ_LINK_25G_RS_528_FEC_EN:
1050         case ICE_AQ_LINK_25G_RS_544_FEC_EN:
1051                 fecparam->active_fec = ETHTOOL_FEC_RS;
1052                 break;
1053         default:
1054                 fecparam->active_fec = ETHTOOL_FEC_OFF;
1055                 break;
1056         }
1057
1058         caps = kzalloc(sizeof(*caps), GFP_KERNEL);
1059         if (!caps)
1060                 return -ENOMEM;
1061
1062         status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_MEDIA,
1063                                      caps, NULL);
1064         if (status) {
1065                 err = -EAGAIN;
1066                 goto done;
1067         }
1068
1069         /* Set supported/configured FEC modes based on PHY capability */
1070         if (caps->caps & ICE_AQC_PHY_EN_AUTO_FEC)
1071                 fecparam->fec |= ETHTOOL_FEC_AUTO;
1072         if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_EN ||
1073             caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_REQ ||
1074             caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_CLAUSE74_EN ||
1075             caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_REQ)
1076                 fecparam->fec |= ETHTOOL_FEC_BASER;
1077         if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_528_REQ ||
1078             caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_544_REQ ||
1079             caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_CLAUSE91_EN)
1080                 fecparam->fec |= ETHTOOL_FEC_RS;
1081         if (caps->link_fec_options == 0)
1082                 fecparam->fec |= ETHTOOL_FEC_OFF;
1083
1084 done:
1085         kfree(caps);
1086         return err;
1087 }
1088
1089 /**
1090  * ice_nway_reset - restart autonegotiation
1091  * @netdev: network interface device structure
1092  */
1093 static int ice_nway_reset(struct net_device *netdev)
1094 {
1095         struct ice_netdev_priv *np = netdev_priv(netdev);
1096         struct ice_vsi *vsi = np->vsi;
1097         int err;
1098
1099         /* If VSI state is up, then restart autoneg with link up */
1100         if (!test_bit(ICE_DOWN, vsi->back->state))
1101                 err = ice_set_link(vsi, true);
1102         else
1103                 err = ice_set_link(vsi, false);
1104
1105         return err;
1106 }
1107
1108 /**
1109  * ice_get_priv_flags - report device private flags
1110  * @netdev: network interface device structure
1111  *
1112  * The get string set count and the string set should be matched for each
1113  * flag returned.  Add new strings for each flag to the ice_gstrings_priv_flags
1114  * array.
1115  *
1116  * Returns a u32 bitmap of flags.
1117  */
1118 static u32 ice_get_priv_flags(struct net_device *netdev)
1119 {
1120         struct ice_netdev_priv *np = netdev_priv(netdev);
1121         struct ice_vsi *vsi = np->vsi;
1122         struct ice_pf *pf = vsi->back;
1123         u32 i, ret_flags = 0;
1124
1125         for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++) {
1126                 const struct ice_priv_flag *priv_flag;
1127
1128                 priv_flag = &ice_gstrings_priv_flags[i];
1129
1130                 if (test_bit(priv_flag->bitno, pf->flags))
1131                         ret_flags |= BIT(i);
1132         }
1133
1134         return ret_flags;
1135 }
1136
1137 /**
1138  * ice_set_priv_flags - set private flags
1139  * @netdev: network interface device structure
1140  * @flags: bit flags to be set
1141  */
1142 static int ice_set_priv_flags(struct net_device *netdev, u32 flags)
1143 {
1144         struct ice_netdev_priv *np = netdev_priv(netdev);
1145         DECLARE_BITMAP(change_flags, ICE_PF_FLAGS_NBITS);
1146         DECLARE_BITMAP(orig_flags, ICE_PF_FLAGS_NBITS);
1147         struct ice_vsi *vsi = np->vsi;
1148         struct ice_pf *pf = vsi->back;
1149         struct device *dev;
1150         int ret = 0;
1151         u32 i;
1152
1153         if (flags > BIT(ICE_PRIV_FLAG_ARRAY_SIZE))
1154                 return -EINVAL;
1155
1156         dev = ice_pf_to_dev(pf);
1157         set_bit(ICE_FLAG_ETHTOOL_CTXT, pf->flags);
1158
1159         bitmap_copy(orig_flags, pf->flags, ICE_PF_FLAGS_NBITS);
1160         for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++) {
1161                 const struct ice_priv_flag *priv_flag;
1162
1163                 priv_flag = &ice_gstrings_priv_flags[i];
1164
1165                 if (flags & BIT(i))
1166                         set_bit(priv_flag->bitno, pf->flags);
1167                 else
1168                         clear_bit(priv_flag->bitno, pf->flags);
1169         }
1170
1171         bitmap_xor(change_flags, pf->flags, orig_flags, ICE_PF_FLAGS_NBITS);
1172
1173         /* Do not allow change to link-down-on-close when Total Port Shutdown
1174          * is enabled.
1175          */
1176         if (test_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, change_flags) &&
1177             test_bit(ICE_FLAG_TOTAL_PORT_SHUTDOWN_ENA, pf->flags)) {
1178                 dev_err(dev, "Setting link-down-on-close not supported on this port\n");
1179                 set_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, pf->flags);
1180                 ret = -EINVAL;
1181                 goto ethtool_exit;
1182         }
1183
1184         if (test_bit(ICE_FLAG_FW_LLDP_AGENT, change_flags)) {
1185                 if (!test_bit(ICE_FLAG_FW_LLDP_AGENT, pf->flags)) {
1186                         enum ice_status status;
1187
1188                         /* Disable FW LLDP engine */
1189                         status = ice_cfg_lldp_mib_change(&pf->hw, false);
1190
1191                         /* If unregistering for LLDP events fails, this is
1192                          * not an error state, as there shouldn't be any
1193                          * events to respond to.
1194                          */
1195                         if (status)
1196                                 dev_info(dev, "Failed to unreg for LLDP events\n");
1197
1198                         /* The AQ call to stop the FW LLDP agent will generate
1199                          * an error if the agent is already stopped.
1200                          */
1201                         status = ice_aq_stop_lldp(&pf->hw, true, true, NULL);
1202                         if (status)
1203                                 dev_warn(dev, "Fail to stop LLDP agent\n");
1204                         /* Use case for having the FW LLDP agent stopped
1205                          * will likely not need DCB, so failure to init is
1206                          * not a concern of ethtool
1207                          */
1208                         status = ice_init_pf_dcb(pf, true);
1209                         if (status)
1210                                 dev_warn(dev, "Fail to init DCB\n");
1211
1212                         pf->dcbx_cap &= ~DCB_CAP_DCBX_LLD_MANAGED;
1213                         pf->dcbx_cap |= DCB_CAP_DCBX_HOST;
1214                 } else {
1215                         enum ice_status status;
1216                         bool dcbx_agent_status;
1217
1218                         /* Remove rule to direct LLDP packets to default VSI.
1219                          * The FW LLDP engine will now be consuming them.
1220                          */
1221                         ice_cfg_sw_lldp(vsi, false, false);
1222
1223                         /* AQ command to start FW LLDP agent will return an
1224                          * error if the agent is already started
1225                          */
1226                         status = ice_aq_start_lldp(&pf->hw, true, NULL);
1227                         if (status)
1228                                 dev_warn(dev, "Fail to start LLDP Agent\n");
1229
1230                         /* AQ command to start FW DCBX agent will fail if
1231                          * the agent is already started
1232                          */
1233                         status = ice_aq_start_stop_dcbx(&pf->hw, true,
1234                                                         &dcbx_agent_status,
1235                                                         NULL);
1236                         if (status)
1237                                 dev_dbg(dev, "Failed to start FW DCBX\n");
1238
1239                         dev_info(dev, "FW DCBX agent is %s\n",
1240                                  dcbx_agent_status ? "ACTIVE" : "DISABLED");
1241
1242                         /* Failure to configure MIB change or init DCB is not
1243                          * relevant to ethtool.  Print notification that
1244                          * registration/init failed but do not return error
1245                          * state to ethtool
1246                          */
1247                         status = ice_init_pf_dcb(pf, true);
1248                         if (status)
1249                                 dev_dbg(dev, "Fail to init DCB\n");
1250
1251                         /* Register for MIB change events */
1252                         status = ice_cfg_lldp_mib_change(&pf->hw, true);
1253                         if (status)
1254                                 dev_dbg(dev, "Fail to enable MIB change events\n");
1255
1256                         pf->dcbx_cap &= ~DCB_CAP_DCBX_HOST;
1257                         pf->dcbx_cap |= DCB_CAP_DCBX_LLD_MANAGED;
1258
1259                         ice_nway_reset(netdev);
1260                 }
1261         }
1262         if (test_bit(ICE_FLAG_LEGACY_RX, change_flags)) {
1263                 /* down and up VSI so that changes of Rx cfg are reflected. */
1264                 ice_down(vsi);
1265                 ice_up(vsi);
1266         }
1267         /* don't allow modification of this flag when a single VF is in
1268          * promiscuous mode because it's not supported
1269          */
1270         if (test_bit(ICE_FLAG_VF_TRUE_PROMISC_ENA, change_flags) &&
1271             ice_is_any_vf_in_promisc(pf)) {
1272                 dev_err(dev, "Changing vf-true-promisc-support flag while VF(s) are in promiscuous mode not supported\n");
1273                 /* toggle bit back to previous state */
1274                 change_bit(ICE_FLAG_VF_TRUE_PROMISC_ENA, pf->flags);
1275                 ret = -EAGAIN;
1276         }
1277 ethtool_exit:
1278         clear_bit(ICE_FLAG_ETHTOOL_CTXT, pf->flags);
1279         return ret;
1280 }
1281
1282 static int ice_get_sset_count(struct net_device *netdev, int sset)
1283 {
1284         switch (sset) {
1285         case ETH_SS_STATS:
1286                 /* The number (and order) of strings reported *must* remain
1287                  * constant for a given netdevice. This function must not
1288                  * report a different number based on run time parameters
1289                  * (such as the number of queues in use, or the setting of
1290                  * a private ethtool flag). This is due to the nature of the
1291                  * ethtool stats API.
1292                  *
1293                  * Userspace programs such as ethtool must make 3 separate
1294                  * ioctl requests, one for size, one for the strings, and
1295                  * finally one for the stats. Since these cross into
1296                  * userspace, changes to the number or size could result in
1297                  * undefined memory access or incorrect string<->value
1298                  * correlations for statistics.
1299                  *
1300                  * Even if it appears to be safe, changes to the size or
1301                  * order of strings will suffer from race conditions and are
1302                  * not safe.
1303                  */
1304                 return ICE_ALL_STATS_LEN(netdev);
1305         case ETH_SS_TEST:
1306                 return ICE_TEST_LEN;
1307         case ETH_SS_PRIV_FLAGS:
1308                 return ICE_PRIV_FLAG_ARRAY_SIZE;
1309         default:
1310                 return -EOPNOTSUPP;
1311         }
1312 }
1313
1314 static void
1315 ice_get_ethtool_stats(struct net_device *netdev,
1316                       struct ethtool_stats __always_unused *stats, u64 *data)
1317 {
1318         struct ice_netdev_priv *np = netdev_priv(netdev);
1319         struct ice_vsi *vsi = np->vsi;
1320         struct ice_pf *pf = vsi->back;
1321         struct ice_ring *ring;
1322         unsigned int j;
1323         int i = 0;
1324         char *p;
1325
1326         ice_update_pf_stats(pf);
1327         ice_update_vsi_stats(vsi);
1328
1329         for (j = 0; j < ICE_VSI_STATS_LEN; j++) {
1330                 p = (char *)vsi + ice_gstrings_vsi_stats[j].stat_offset;
1331                 data[i++] = (ice_gstrings_vsi_stats[j].sizeof_stat ==
1332                              sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1333         }
1334
1335         /* populate per queue stats */
1336         rcu_read_lock();
1337
1338         ice_for_each_alloc_txq(vsi, j) {
1339                 ring = READ_ONCE(vsi->tx_rings[j]);
1340                 if (ring) {
1341                         data[i++] = ring->stats.pkts;
1342                         data[i++] = ring->stats.bytes;
1343                 } else {
1344                         data[i++] = 0;
1345                         data[i++] = 0;
1346                 }
1347         }
1348
1349         ice_for_each_alloc_rxq(vsi, j) {
1350                 ring = READ_ONCE(vsi->rx_rings[j]);
1351                 if (ring) {
1352                         data[i++] = ring->stats.pkts;
1353                         data[i++] = ring->stats.bytes;
1354                 } else {
1355                         data[i++] = 0;
1356                         data[i++] = 0;
1357                 }
1358         }
1359
1360         rcu_read_unlock();
1361
1362         if (vsi->type != ICE_VSI_PF)
1363                 return;
1364
1365         for (j = 0; j < ICE_PF_STATS_LEN; j++) {
1366                 p = (char *)pf + ice_gstrings_pf_stats[j].stat_offset;
1367                 data[i++] = (ice_gstrings_pf_stats[j].sizeof_stat ==
1368                              sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1369         }
1370
1371         for (j = 0; j < ICE_MAX_USER_PRIORITY; j++) {
1372                 data[i++] = pf->stats.priority_xon_tx[j];
1373                 data[i++] = pf->stats.priority_xoff_tx[j];
1374         }
1375
1376         for (j = 0; j < ICE_MAX_USER_PRIORITY; j++) {
1377                 data[i++] = pf->stats.priority_xon_rx[j];
1378                 data[i++] = pf->stats.priority_xoff_rx[j];
1379         }
1380 }
1381
1382 #define ICE_PHY_TYPE_LOW_MASK_MIN_1G    (ICE_PHY_TYPE_LOW_100BASE_TX | \
1383                                          ICE_PHY_TYPE_LOW_100M_SGMII)
1384
1385 #define ICE_PHY_TYPE_LOW_MASK_MIN_25G   (ICE_PHY_TYPE_LOW_MASK_MIN_1G | \
1386                                          ICE_PHY_TYPE_LOW_1000BASE_T | \
1387                                          ICE_PHY_TYPE_LOW_1000BASE_SX | \
1388                                          ICE_PHY_TYPE_LOW_1000BASE_LX | \
1389                                          ICE_PHY_TYPE_LOW_1000BASE_KX | \
1390                                          ICE_PHY_TYPE_LOW_1G_SGMII | \
1391                                          ICE_PHY_TYPE_LOW_2500BASE_T | \
1392                                          ICE_PHY_TYPE_LOW_2500BASE_X | \
1393                                          ICE_PHY_TYPE_LOW_2500BASE_KX | \
1394                                          ICE_PHY_TYPE_LOW_5GBASE_T | \
1395                                          ICE_PHY_TYPE_LOW_5GBASE_KR | \
1396                                          ICE_PHY_TYPE_LOW_10GBASE_T | \
1397                                          ICE_PHY_TYPE_LOW_10G_SFI_DA | \
1398                                          ICE_PHY_TYPE_LOW_10GBASE_SR | \
1399                                          ICE_PHY_TYPE_LOW_10GBASE_LR | \
1400                                          ICE_PHY_TYPE_LOW_10GBASE_KR_CR1 | \
1401                                          ICE_PHY_TYPE_LOW_10G_SFI_AOC_ACC | \
1402                                          ICE_PHY_TYPE_LOW_10G_SFI_C2C)
1403
1404 #define ICE_PHY_TYPE_LOW_MASK_100G      (ICE_PHY_TYPE_LOW_100GBASE_CR4 | \
1405                                          ICE_PHY_TYPE_LOW_100GBASE_SR4 | \
1406                                          ICE_PHY_TYPE_LOW_100GBASE_LR4 | \
1407                                          ICE_PHY_TYPE_LOW_100GBASE_KR4 | \
1408                                          ICE_PHY_TYPE_LOW_100G_CAUI4_AOC_ACC | \
1409                                          ICE_PHY_TYPE_LOW_100G_CAUI4 | \
1410                                          ICE_PHY_TYPE_LOW_100G_AUI4_AOC_ACC | \
1411                                          ICE_PHY_TYPE_LOW_100G_AUI4 | \
1412                                          ICE_PHY_TYPE_LOW_100GBASE_CR_PAM4 | \
1413                                          ICE_PHY_TYPE_LOW_100GBASE_KR_PAM4 | \
1414                                          ICE_PHY_TYPE_LOW_100GBASE_CP2 | \
1415                                          ICE_PHY_TYPE_LOW_100GBASE_SR2 | \
1416                                          ICE_PHY_TYPE_LOW_100GBASE_DR)
1417
1418 #define ICE_PHY_TYPE_HIGH_MASK_100G     (ICE_PHY_TYPE_HIGH_100GBASE_KR2_PAM4 | \
1419                                          ICE_PHY_TYPE_HIGH_100G_CAUI2_AOC_ACC |\
1420                                          ICE_PHY_TYPE_HIGH_100G_CAUI2 | \
1421                                          ICE_PHY_TYPE_HIGH_100G_AUI2_AOC_ACC | \
1422                                          ICE_PHY_TYPE_HIGH_100G_AUI2)
1423
1424 /**
1425  * ice_mask_min_supported_speeds
1426  * @phy_types_high: PHY type high
1427  * @phy_types_low: PHY type low to apply minimum supported speeds mask
1428  *
1429  * Apply minimum supported speeds mask to PHY type low. These are the speeds
1430  * for ethtool supported link mode.
1431  */
1432 static
1433 void ice_mask_min_supported_speeds(u64 phy_types_high, u64 *phy_types_low)
1434 {
1435         /* if QSFP connection with 100G speed, minimum supported speed is 25G */
1436         if (*phy_types_low & ICE_PHY_TYPE_LOW_MASK_100G ||
1437             phy_types_high & ICE_PHY_TYPE_HIGH_MASK_100G)
1438                 *phy_types_low &= ~ICE_PHY_TYPE_LOW_MASK_MIN_25G;
1439         else
1440                 *phy_types_low &= ~ICE_PHY_TYPE_LOW_MASK_MIN_1G;
1441 }
1442
1443 #define ice_ethtool_advertise_link_mode(aq_link_speed, ethtool_link_mode)    \
1444         do {                                                                 \
1445                 if (req_speeds & (aq_link_speed) ||                          \
1446                     (!req_speeds &&                                          \
1447                      (advert_phy_type_lo & phy_type_mask_lo ||               \
1448                       advert_phy_type_hi & phy_type_mask_hi)))               \
1449                         ethtool_link_ksettings_add_link_mode(ks, advertising,\
1450                                                         ethtool_link_mode);  \
1451         } while (0)
1452
1453 /**
1454  * ice_phy_type_to_ethtool - convert the phy_types to ethtool link modes
1455  * @netdev: network interface device structure
1456  * @ks: ethtool link ksettings struct to fill out
1457  */
1458 static void
1459 ice_phy_type_to_ethtool(struct net_device *netdev,
1460                         struct ethtool_link_ksettings *ks)
1461 {
1462         struct ice_netdev_priv *np = netdev_priv(netdev);
1463         struct ice_vsi *vsi = np->vsi;
1464         struct ice_pf *pf = vsi->back;
1465         u64 advert_phy_type_lo = 0;
1466         u64 advert_phy_type_hi = 0;
1467         u64 phy_type_mask_lo = 0;
1468         u64 phy_type_mask_hi = 0;
1469         u64 phy_types_high = 0;
1470         u64 phy_types_low = 0;
1471         u16 req_speeds;
1472
1473         req_speeds = vsi->port_info->phy.link_info.req_speeds;
1474
1475         /* Check if lenient mode is supported and enabled, or in strict mode.
1476          *
1477          * In lenient mode the Supported link modes are the PHY types without
1478          * media. The Advertising link mode is either 1. the user requested
1479          * speed, 2. the override PHY mask, or 3. the PHY types with media.
1480          *
1481          * In strict mode Supported link mode are the PHY type with media,
1482          * and Advertising link modes are the media PHY type or the speed
1483          * requested by user.
1484          */
1485         if (test_bit(ICE_FLAG_LINK_LENIENT_MODE_ENA, pf->flags)) {
1486                 phy_types_low = le64_to_cpu(pf->nvm_phy_type_lo);
1487                 phy_types_high = le64_to_cpu(pf->nvm_phy_type_hi);
1488
1489                 ice_mask_min_supported_speeds(phy_types_high, &phy_types_low);
1490                 /* determine advertised modes based on link override only
1491                  * if it's supported and if the FW doesn't abstract the
1492                  * driver from having to account for link overrides
1493                  */
1494                 if (ice_fw_supports_link_override(&pf->hw) &&
1495                     !ice_fw_supports_report_dflt_cfg(&pf->hw)) {
1496                         struct ice_link_default_override_tlv *ldo;
1497
1498                         ldo = &pf->link_dflt_override;
1499                         /* If override enabled and PHY mask set, then
1500                          * Advertising link mode is the intersection of the PHY
1501                          * types without media and the override PHY mask.
1502                          */
1503                         if (ldo->options & ICE_LINK_OVERRIDE_EN &&
1504                             (ldo->phy_type_low || ldo->phy_type_high)) {
1505                                 advert_phy_type_lo =
1506                                         le64_to_cpu(pf->nvm_phy_type_lo) &
1507                                         ldo->phy_type_low;
1508                                 advert_phy_type_hi =
1509                                         le64_to_cpu(pf->nvm_phy_type_hi) &
1510                                         ldo->phy_type_high;
1511                         }
1512                 }
1513         } else {
1514                 /* strict mode */
1515                 phy_types_low = vsi->port_info->phy.phy_type_low;
1516                 phy_types_high = vsi->port_info->phy.phy_type_high;
1517         }
1518
1519         /* If Advertising link mode PHY type is not using override PHY type,
1520          * then use PHY type with media.
1521          */
1522         if (!advert_phy_type_lo && !advert_phy_type_hi) {
1523                 advert_phy_type_lo = vsi->port_info->phy.phy_type_low;
1524                 advert_phy_type_hi = vsi->port_info->phy.phy_type_high;
1525         }
1526
1527         ethtool_link_ksettings_zero_link_mode(ks, supported);
1528         ethtool_link_ksettings_zero_link_mode(ks, advertising);
1529
1530         phy_type_mask_lo = ICE_PHY_TYPE_LOW_100BASE_TX |
1531                            ICE_PHY_TYPE_LOW_100M_SGMII;
1532         if (phy_types_low & phy_type_mask_lo) {
1533                 ethtool_link_ksettings_add_link_mode(ks, supported,
1534                                                      100baseT_Full);
1535
1536                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100MB,
1537                                                 100baseT_Full);
1538         }
1539
1540         phy_type_mask_lo = ICE_PHY_TYPE_LOW_1000BASE_T |
1541                            ICE_PHY_TYPE_LOW_1G_SGMII;
1542         if (phy_types_low & phy_type_mask_lo) {
1543                 ethtool_link_ksettings_add_link_mode(ks, supported,
1544                                                      1000baseT_Full);
1545                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_1000MB,
1546                                                 1000baseT_Full);
1547         }
1548
1549         phy_type_mask_lo = ICE_PHY_TYPE_LOW_1000BASE_KX;
1550         if (phy_types_low & phy_type_mask_lo) {
1551                 ethtool_link_ksettings_add_link_mode(ks, supported,
1552                                                      1000baseKX_Full);
1553                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_1000MB,
1554                                                 1000baseKX_Full);
1555         }
1556
1557         phy_type_mask_lo = ICE_PHY_TYPE_LOW_1000BASE_SX |
1558                            ICE_PHY_TYPE_LOW_1000BASE_LX;
1559         if (phy_types_low & phy_type_mask_lo) {
1560                 ethtool_link_ksettings_add_link_mode(ks, supported,
1561                                                      1000baseX_Full);
1562                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_1000MB,
1563                                                 1000baseX_Full);
1564         }
1565
1566         phy_type_mask_lo = ICE_PHY_TYPE_LOW_2500BASE_T;
1567         if (phy_types_low & phy_type_mask_lo) {
1568                 ethtool_link_ksettings_add_link_mode(ks, supported,
1569                                                      2500baseT_Full);
1570                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_2500MB,
1571                                                 2500baseT_Full);
1572         }
1573
1574         phy_type_mask_lo = ICE_PHY_TYPE_LOW_2500BASE_X |
1575                            ICE_PHY_TYPE_LOW_2500BASE_KX;
1576         if (phy_types_low & phy_type_mask_lo) {
1577                 ethtool_link_ksettings_add_link_mode(ks, supported,
1578                                                      2500baseX_Full);
1579                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_2500MB,
1580                                                 2500baseX_Full);
1581         }
1582
1583         phy_type_mask_lo = ICE_PHY_TYPE_LOW_5GBASE_T |
1584                            ICE_PHY_TYPE_LOW_5GBASE_KR;
1585         if (phy_types_low & phy_type_mask_lo) {
1586                 ethtool_link_ksettings_add_link_mode(ks, supported,
1587                                                      5000baseT_Full);
1588                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_5GB,
1589                                                 5000baseT_Full);
1590         }
1591
1592         phy_type_mask_lo = ICE_PHY_TYPE_LOW_10GBASE_T |
1593                            ICE_PHY_TYPE_LOW_10G_SFI_DA |
1594                            ICE_PHY_TYPE_LOW_10G_SFI_AOC_ACC |
1595                            ICE_PHY_TYPE_LOW_10G_SFI_C2C;
1596         if (phy_types_low & phy_type_mask_lo) {
1597                 ethtool_link_ksettings_add_link_mode(ks, supported,
1598                                                      10000baseT_Full);
1599                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_10GB,
1600                                                 10000baseT_Full);
1601         }
1602
1603         phy_type_mask_lo = ICE_PHY_TYPE_LOW_10GBASE_KR_CR1;
1604         if (phy_types_low & phy_type_mask_lo) {
1605                 ethtool_link_ksettings_add_link_mode(ks, supported,
1606                                                      10000baseKR_Full);
1607                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_10GB,
1608                                                 10000baseKR_Full);
1609         }
1610
1611         phy_type_mask_lo = ICE_PHY_TYPE_LOW_10GBASE_SR;
1612         if (phy_types_low & phy_type_mask_lo) {
1613                 ethtool_link_ksettings_add_link_mode(ks, supported,
1614                                                      10000baseSR_Full);
1615                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_10GB,
1616                                                 10000baseSR_Full);
1617         }
1618
1619         phy_type_mask_lo = ICE_PHY_TYPE_LOW_10GBASE_LR;
1620         if (phy_types_low & phy_type_mask_lo) {
1621                 ethtool_link_ksettings_add_link_mode(ks, supported,
1622                                                      10000baseLR_Full);
1623                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_10GB,
1624                                                 10000baseLR_Full);
1625         }
1626
1627         phy_type_mask_lo = ICE_PHY_TYPE_LOW_25GBASE_T |
1628                            ICE_PHY_TYPE_LOW_25GBASE_CR |
1629                            ICE_PHY_TYPE_LOW_25GBASE_CR_S |
1630                            ICE_PHY_TYPE_LOW_25GBASE_CR1 |
1631                            ICE_PHY_TYPE_LOW_25G_AUI_AOC_ACC |
1632                            ICE_PHY_TYPE_LOW_25G_AUI_C2C;
1633         if (phy_types_low & phy_type_mask_lo) {
1634                 ethtool_link_ksettings_add_link_mode(ks, supported,
1635                                                      25000baseCR_Full);
1636                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_25GB,
1637                                                 25000baseCR_Full);
1638         }
1639
1640         phy_type_mask_lo = ICE_PHY_TYPE_LOW_25GBASE_SR |
1641                            ICE_PHY_TYPE_LOW_25GBASE_LR;
1642         if (phy_types_low & phy_type_mask_lo) {
1643                 ethtool_link_ksettings_add_link_mode(ks, supported,
1644                                                      25000baseSR_Full);
1645                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_25GB,
1646                                                 25000baseSR_Full);
1647         }
1648
1649         phy_type_mask_lo = ICE_PHY_TYPE_LOW_25GBASE_KR |
1650                            ICE_PHY_TYPE_LOW_25GBASE_KR_S |
1651                            ICE_PHY_TYPE_LOW_25GBASE_KR1;
1652         if (phy_types_low & phy_type_mask_lo) {
1653                 ethtool_link_ksettings_add_link_mode(ks, supported,
1654                                                      25000baseKR_Full);
1655                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_25GB,
1656                                                 25000baseKR_Full);
1657         }
1658
1659         phy_type_mask_lo = ICE_PHY_TYPE_LOW_40GBASE_KR4;
1660         if (phy_types_low & phy_type_mask_lo) {
1661                 ethtool_link_ksettings_add_link_mode(ks, supported,
1662                                                      40000baseKR4_Full);
1663                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_40GB,
1664                                                 40000baseKR4_Full);
1665         }
1666
1667         phy_type_mask_lo = ICE_PHY_TYPE_LOW_40GBASE_CR4 |
1668                            ICE_PHY_TYPE_LOW_40G_XLAUI_AOC_ACC |
1669                            ICE_PHY_TYPE_LOW_40G_XLAUI;
1670         if (phy_types_low & phy_type_mask_lo) {
1671                 ethtool_link_ksettings_add_link_mode(ks, supported,
1672                                                      40000baseCR4_Full);
1673                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_40GB,
1674                                                 40000baseCR4_Full);
1675         }
1676
1677         phy_type_mask_lo = ICE_PHY_TYPE_LOW_40GBASE_SR4;
1678         if (phy_types_low & phy_type_mask_lo) {
1679                 ethtool_link_ksettings_add_link_mode(ks, supported,
1680                                                      40000baseSR4_Full);
1681                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_40GB,
1682                                                 40000baseSR4_Full);
1683         }
1684
1685         phy_type_mask_lo = ICE_PHY_TYPE_LOW_40GBASE_LR4;
1686         if (phy_types_low & phy_type_mask_lo) {
1687                 ethtool_link_ksettings_add_link_mode(ks, supported,
1688                                                      40000baseLR4_Full);
1689                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_40GB,
1690                                                 40000baseLR4_Full);
1691         }
1692
1693         phy_type_mask_lo = ICE_PHY_TYPE_LOW_50GBASE_CR2 |
1694                            ICE_PHY_TYPE_LOW_50G_LAUI2_AOC_ACC |
1695                            ICE_PHY_TYPE_LOW_50G_LAUI2 |
1696                            ICE_PHY_TYPE_LOW_50G_AUI2_AOC_ACC |
1697                            ICE_PHY_TYPE_LOW_50G_AUI2 |
1698                            ICE_PHY_TYPE_LOW_50GBASE_CP |
1699                            ICE_PHY_TYPE_LOW_50GBASE_SR |
1700                            ICE_PHY_TYPE_LOW_50G_AUI1_AOC_ACC |
1701                            ICE_PHY_TYPE_LOW_50G_AUI1;
1702         if (phy_types_low & phy_type_mask_lo) {
1703                 ethtool_link_ksettings_add_link_mode(ks, supported,
1704                                                      50000baseCR2_Full);
1705                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_50GB,
1706                                                 50000baseCR2_Full);
1707         }
1708
1709         phy_type_mask_lo = ICE_PHY_TYPE_LOW_50GBASE_KR2 |
1710                            ICE_PHY_TYPE_LOW_50GBASE_KR_PAM4;
1711         if (phy_types_low & phy_type_mask_lo) {
1712                 ethtool_link_ksettings_add_link_mode(ks, supported,
1713                                                      50000baseKR2_Full);
1714                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_50GB,
1715                                                 50000baseKR2_Full);
1716         }
1717
1718         phy_type_mask_lo = ICE_PHY_TYPE_LOW_50GBASE_SR2 |
1719                            ICE_PHY_TYPE_LOW_50GBASE_LR2 |
1720                            ICE_PHY_TYPE_LOW_50GBASE_FR |
1721                            ICE_PHY_TYPE_LOW_50GBASE_LR;
1722         if (phy_types_low & phy_type_mask_lo) {
1723                 ethtool_link_ksettings_add_link_mode(ks, supported,
1724                                                      50000baseSR2_Full);
1725                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_50GB,
1726                                                 50000baseSR2_Full);
1727         }
1728
1729         phy_type_mask_lo = ICE_PHY_TYPE_LOW_100GBASE_CR4 |
1730                            ICE_PHY_TYPE_LOW_100G_CAUI4_AOC_ACC |
1731                            ICE_PHY_TYPE_LOW_100G_CAUI4 |
1732                            ICE_PHY_TYPE_LOW_100G_AUI4_AOC_ACC |
1733                            ICE_PHY_TYPE_LOW_100G_AUI4 |
1734                            ICE_PHY_TYPE_LOW_100GBASE_CR_PAM4 |
1735                            ICE_PHY_TYPE_LOW_100GBASE_CP2;
1736         phy_type_mask_hi = ICE_PHY_TYPE_HIGH_100G_CAUI2_AOC_ACC |
1737                            ICE_PHY_TYPE_HIGH_100G_CAUI2 |
1738                            ICE_PHY_TYPE_HIGH_100G_AUI2_AOC_ACC |
1739                            ICE_PHY_TYPE_HIGH_100G_AUI2;
1740         if (phy_types_low & phy_type_mask_lo ||
1741             phy_types_high & phy_type_mask_hi) {
1742                 ethtool_link_ksettings_add_link_mode(ks, supported,
1743                                                      100000baseCR4_Full);
1744                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100GB,
1745                                                 100000baseCR4_Full);
1746         }
1747
1748         phy_type_mask_lo = ICE_PHY_TYPE_LOW_100GBASE_SR4 |
1749                            ICE_PHY_TYPE_LOW_100GBASE_SR2;
1750         if (phy_types_low & phy_type_mask_lo) {
1751                 ethtool_link_ksettings_add_link_mode(ks, supported,
1752                                                      100000baseSR4_Full);
1753                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100GB,
1754                                                 100000baseSR4_Full);
1755         }
1756
1757         phy_type_mask_lo = ICE_PHY_TYPE_LOW_100GBASE_LR4 |
1758                            ICE_PHY_TYPE_LOW_100GBASE_DR;
1759         if (phy_types_low & phy_type_mask_lo) {
1760                 ethtool_link_ksettings_add_link_mode(ks, supported,
1761                                                      100000baseLR4_ER4_Full);
1762                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100GB,
1763                                                 100000baseLR4_ER4_Full);
1764         }
1765
1766         phy_type_mask_lo = ICE_PHY_TYPE_LOW_100GBASE_KR4 |
1767                            ICE_PHY_TYPE_LOW_100GBASE_KR_PAM4;
1768         phy_type_mask_hi = ICE_PHY_TYPE_HIGH_100GBASE_KR2_PAM4;
1769         if (phy_types_low & phy_type_mask_lo ||
1770             phy_types_high & phy_type_mask_hi) {
1771                 ethtool_link_ksettings_add_link_mode(ks, supported,
1772                                                      100000baseKR4_Full);
1773                 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100GB,
1774                                                 100000baseKR4_Full);
1775         }
1776 }
1777
1778 #define TEST_SET_BITS_TIMEOUT   50
1779 #define TEST_SET_BITS_SLEEP_MAX 2000
1780 #define TEST_SET_BITS_SLEEP_MIN 1000
1781
1782 /**
1783  * ice_get_settings_link_up - Get Link settings for when link is up
1784  * @ks: ethtool ksettings to fill in
1785  * @netdev: network interface device structure
1786  */
1787 static void
1788 ice_get_settings_link_up(struct ethtool_link_ksettings *ks,
1789                          struct net_device *netdev)
1790 {
1791         struct ice_netdev_priv *np = netdev_priv(netdev);
1792         struct ice_port_info *pi = np->vsi->port_info;
1793         struct ice_link_status *link_info;
1794         struct ice_vsi *vsi = np->vsi;
1795
1796         link_info = &vsi->port_info->phy.link_info;
1797
1798         /* Get supported and advertised settings from PHY ability with media */
1799         ice_phy_type_to_ethtool(netdev, ks);
1800
1801         switch (link_info->link_speed) {
1802         case ICE_AQ_LINK_SPEED_100GB:
1803                 ks->base.speed = SPEED_100000;
1804                 break;
1805         case ICE_AQ_LINK_SPEED_50GB:
1806                 ks->base.speed = SPEED_50000;
1807                 break;
1808         case ICE_AQ_LINK_SPEED_40GB:
1809                 ks->base.speed = SPEED_40000;
1810                 break;
1811         case ICE_AQ_LINK_SPEED_25GB:
1812                 ks->base.speed = SPEED_25000;
1813                 break;
1814         case ICE_AQ_LINK_SPEED_20GB:
1815                 ks->base.speed = SPEED_20000;
1816                 break;
1817         case ICE_AQ_LINK_SPEED_10GB:
1818                 ks->base.speed = SPEED_10000;
1819                 break;
1820         case ICE_AQ_LINK_SPEED_5GB:
1821                 ks->base.speed = SPEED_5000;
1822                 break;
1823         case ICE_AQ_LINK_SPEED_2500MB:
1824                 ks->base.speed = SPEED_2500;
1825                 break;
1826         case ICE_AQ_LINK_SPEED_1000MB:
1827                 ks->base.speed = SPEED_1000;
1828                 break;
1829         case ICE_AQ_LINK_SPEED_100MB:
1830                 ks->base.speed = SPEED_100;
1831                 break;
1832         default:
1833                 netdev_info(netdev, "WARNING: Unrecognized link_speed (0x%x).\n",
1834                             link_info->link_speed);
1835                 break;
1836         }
1837         ks->base.duplex = DUPLEX_FULL;
1838
1839         if (link_info->an_info & ICE_AQ_AN_COMPLETED)
1840                 ethtool_link_ksettings_add_link_mode(ks, lp_advertising,
1841                                                      Autoneg);
1842
1843         /* Set flow control negotiated Rx/Tx pause */
1844         switch (pi->fc.current_mode) {
1845         case ICE_FC_FULL:
1846                 ethtool_link_ksettings_add_link_mode(ks, lp_advertising, Pause);
1847                 break;
1848         case ICE_FC_TX_PAUSE:
1849                 ethtool_link_ksettings_add_link_mode(ks, lp_advertising, Pause);
1850                 ethtool_link_ksettings_add_link_mode(ks, lp_advertising,
1851                                                      Asym_Pause);
1852                 break;
1853         case ICE_FC_RX_PAUSE:
1854                 ethtool_link_ksettings_add_link_mode(ks, lp_advertising,
1855                                                      Asym_Pause);
1856                 break;
1857         case ICE_FC_PFC:
1858         default:
1859                 ethtool_link_ksettings_del_link_mode(ks, lp_advertising, Pause);
1860                 ethtool_link_ksettings_del_link_mode(ks, lp_advertising,
1861                                                      Asym_Pause);
1862                 break;
1863         }
1864 }
1865
1866 /**
1867  * ice_get_settings_link_down - Get the Link settings when link is down
1868  * @ks: ethtool ksettings to fill in
1869  * @netdev: network interface device structure
1870  *
1871  * Reports link settings that can be determined when link is down
1872  */
1873 static void
1874 ice_get_settings_link_down(struct ethtool_link_ksettings *ks,
1875                            struct net_device *netdev)
1876 {
1877         /* link is down and the driver needs to fall back on
1878          * supported PHY types to figure out what info to display
1879          */
1880         ice_phy_type_to_ethtool(netdev, ks);
1881
1882         /* With no link, speed and duplex are unknown */
1883         ks->base.speed = SPEED_UNKNOWN;
1884         ks->base.duplex = DUPLEX_UNKNOWN;
1885 }
1886
1887 /**
1888  * ice_get_link_ksettings - Get Link Speed and Duplex settings
1889  * @netdev: network interface device structure
1890  * @ks: ethtool ksettings
1891  *
1892  * Reports speed/duplex settings based on media_type
1893  */
1894 static int
1895 ice_get_link_ksettings(struct net_device *netdev,
1896                        struct ethtool_link_ksettings *ks)
1897 {
1898         struct ice_netdev_priv *np = netdev_priv(netdev);
1899         struct ice_aqc_get_phy_caps_data *caps;
1900         struct ice_link_status *hw_link_info;
1901         struct ice_vsi *vsi = np->vsi;
1902         enum ice_status status;
1903         int err = 0;
1904
1905         ethtool_link_ksettings_zero_link_mode(ks, supported);
1906         ethtool_link_ksettings_zero_link_mode(ks, advertising);
1907         ethtool_link_ksettings_zero_link_mode(ks, lp_advertising);
1908         hw_link_info = &vsi->port_info->phy.link_info;
1909
1910         /* set speed and duplex */
1911         if (hw_link_info->link_info & ICE_AQ_LINK_UP)
1912                 ice_get_settings_link_up(ks, netdev);
1913         else
1914                 ice_get_settings_link_down(ks, netdev);
1915
1916         /* set autoneg settings */
1917         ks->base.autoneg = (hw_link_info->an_info & ICE_AQ_AN_COMPLETED) ?
1918                 AUTONEG_ENABLE : AUTONEG_DISABLE;
1919
1920         /* set media type settings */
1921         switch (vsi->port_info->phy.media_type) {
1922         case ICE_MEDIA_FIBER:
1923                 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
1924                 ks->base.port = PORT_FIBRE;
1925                 break;
1926         case ICE_MEDIA_BASET:
1927                 ethtool_link_ksettings_add_link_mode(ks, supported, TP);
1928                 ethtool_link_ksettings_add_link_mode(ks, advertising, TP);
1929                 ks->base.port = PORT_TP;
1930                 break;
1931         case ICE_MEDIA_BACKPLANE:
1932                 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane);
1933                 ethtool_link_ksettings_add_link_mode(ks, advertising,
1934                                                      Backplane);
1935                 ks->base.port = PORT_NONE;
1936                 break;
1937         case ICE_MEDIA_DA:
1938                 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
1939                 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
1940                 ks->base.port = PORT_DA;
1941                 break;
1942         default:
1943                 ks->base.port = PORT_OTHER;
1944                 break;
1945         }
1946
1947         /* flow control is symmetric and always supported */
1948         ethtool_link_ksettings_add_link_mode(ks, supported, Pause);
1949
1950         caps = kzalloc(sizeof(*caps), GFP_KERNEL);
1951         if (!caps)
1952                 return -ENOMEM;
1953
1954         status = ice_aq_get_phy_caps(vsi->port_info, false,
1955                                      ICE_AQC_REPORT_ACTIVE_CFG, caps, NULL);
1956         if (status) {
1957                 err = -EIO;
1958                 goto done;
1959         }
1960
1961         /* Set the advertised flow control based on the PHY capability */
1962         if ((caps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE) &&
1963             (caps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE)) {
1964                 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
1965                 ethtool_link_ksettings_add_link_mode(ks, advertising,
1966                                                      Asym_Pause);
1967         } else if (caps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE) {
1968                 ethtool_link_ksettings_add_link_mode(ks, advertising,
1969                                                      Asym_Pause);
1970         } else if (caps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE) {
1971                 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
1972                 ethtool_link_ksettings_add_link_mode(ks, advertising,
1973                                                      Asym_Pause);
1974         } else {
1975                 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause);
1976                 ethtool_link_ksettings_del_link_mode(ks, advertising,
1977                                                      Asym_Pause);
1978         }
1979
1980         /* Set advertised FEC modes based on PHY capability */
1981         ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_NONE);
1982
1983         if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_REQ ||
1984             caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_REQ)
1985                 ethtool_link_ksettings_add_link_mode(ks, advertising,
1986                                                      FEC_BASER);
1987         if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_528_REQ ||
1988             caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_544_REQ)
1989                 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);
1990
1991         status = ice_aq_get_phy_caps(vsi->port_info, false,
1992                                      ICE_AQC_REPORT_TOPO_CAP_MEDIA, caps, NULL);
1993         if (status) {
1994                 err = -EIO;
1995                 goto done;
1996         }
1997
1998         /* Set supported FEC modes based on PHY capability */
1999         ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE);
2000
2001         if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_EN ||
2002             caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_CLAUSE74_EN)
2003                 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);
2004         if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_CLAUSE91_EN)
2005                 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);
2006
2007         /* Set supported and advertised autoneg */
2008         if (ice_is_phy_caps_an_enabled(caps)) {
2009                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
2010                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
2011         }
2012
2013 done:
2014         kfree(caps);
2015         return err;
2016 }
2017
2018 /**
2019  * ice_ksettings_find_adv_link_speed - Find advertising link speed
2020  * @ks: ethtool ksettings
2021  */
2022 static u16
2023 ice_ksettings_find_adv_link_speed(const struct ethtool_link_ksettings *ks)
2024 {
2025         u16 adv_link_speed = 0;
2026
2027         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2028                                                   100baseT_Full))
2029                 adv_link_speed |= ICE_AQ_LINK_SPEED_100MB;
2030         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2031                                                   1000baseX_Full))
2032                 adv_link_speed |= ICE_AQ_LINK_SPEED_1000MB;
2033         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2034                                                   1000baseT_Full) ||
2035             ethtool_link_ksettings_test_link_mode(ks, advertising,
2036                                                   1000baseKX_Full))
2037                 adv_link_speed |= ICE_AQ_LINK_SPEED_1000MB;
2038         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2039                                                   2500baseT_Full))
2040                 adv_link_speed |= ICE_AQ_LINK_SPEED_2500MB;
2041         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2042                                                   2500baseX_Full))
2043                 adv_link_speed |= ICE_AQ_LINK_SPEED_2500MB;
2044         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2045                                                   5000baseT_Full))
2046                 adv_link_speed |= ICE_AQ_LINK_SPEED_5GB;
2047         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2048                                                   10000baseT_Full) ||
2049             ethtool_link_ksettings_test_link_mode(ks, advertising,
2050                                                   10000baseKR_Full))
2051                 adv_link_speed |= ICE_AQ_LINK_SPEED_10GB;
2052         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2053                                                   10000baseSR_Full) ||
2054             ethtool_link_ksettings_test_link_mode(ks, advertising,
2055                                                   10000baseLR_Full))
2056                 adv_link_speed |= ICE_AQ_LINK_SPEED_10GB;
2057         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2058                                                   25000baseCR_Full) ||
2059             ethtool_link_ksettings_test_link_mode(ks, advertising,
2060                                                   25000baseSR_Full) ||
2061             ethtool_link_ksettings_test_link_mode(ks, advertising,
2062                                                   25000baseKR_Full))
2063                 adv_link_speed |= ICE_AQ_LINK_SPEED_25GB;
2064         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2065                                                   40000baseCR4_Full) ||
2066             ethtool_link_ksettings_test_link_mode(ks, advertising,
2067                                                   40000baseSR4_Full) ||
2068             ethtool_link_ksettings_test_link_mode(ks, advertising,
2069                                                   40000baseLR4_Full) ||
2070             ethtool_link_ksettings_test_link_mode(ks, advertising,
2071                                                   40000baseKR4_Full))
2072                 adv_link_speed |= ICE_AQ_LINK_SPEED_40GB;
2073         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2074                                                   50000baseCR2_Full) ||
2075             ethtool_link_ksettings_test_link_mode(ks, advertising,
2076                                                   50000baseKR2_Full))
2077                 adv_link_speed |= ICE_AQ_LINK_SPEED_50GB;
2078         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2079                                                   50000baseSR2_Full))
2080                 adv_link_speed |= ICE_AQ_LINK_SPEED_50GB;
2081         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2082                                                   100000baseCR4_Full) ||
2083             ethtool_link_ksettings_test_link_mode(ks, advertising,
2084                                                   100000baseSR4_Full) ||
2085             ethtool_link_ksettings_test_link_mode(ks, advertising,
2086                                                   100000baseLR4_ER4_Full) ||
2087             ethtool_link_ksettings_test_link_mode(ks, advertising,
2088                                                   100000baseKR4_Full))
2089                 adv_link_speed |= ICE_AQ_LINK_SPEED_100GB;
2090
2091         return adv_link_speed;
2092 }
2093
2094 /**
2095  * ice_setup_autoneg
2096  * @p: port info
2097  * @ks: ethtool_link_ksettings
2098  * @config: configuration that will be sent down to FW
2099  * @autoneg_enabled: autonegotiation is enabled or not
2100  * @autoneg_changed: will there a change in autonegotiation
2101  * @netdev: network interface device structure
2102  *
2103  * Setup PHY autonegotiation feature
2104  */
2105 static int
2106 ice_setup_autoneg(struct ice_port_info *p, struct ethtool_link_ksettings *ks,
2107                   struct ice_aqc_set_phy_cfg_data *config,
2108                   u8 autoneg_enabled, u8 *autoneg_changed,
2109                   struct net_device *netdev)
2110 {
2111         int err = 0;
2112
2113         *autoneg_changed = 0;
2114
2115         /* Check autoneg */
2116         if (autoneg_enabled == AUTONEG_ENABLE) {
2117                 /* If autoneg was not already enabled */
2118                 if (!(p->phy.link_info.an_info & ICE_AQ_AN_COMPLETED)) {
2119                         /* If autoneg is not supported, return error */
2120                         if (!ethtool_link_ksettings_test_link_mode(ks,
2121                                                                    supported,
2122                                                                    Autoneg)) {
2123                                 netdev_info(netdev, "Autoneg not supported on this phy.\n");
2124                                 err = -EINVAL;
2125                         } else {
2126                                 /* Autoneg is allowed to change */
2127                                 config->caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
2128                                 *autoneg_changed = 1;
2129                         }
2130                 }
2131         } else {
2132                 /* If autoneg is currently enabled */
2133                 if (p->phy.link_info.an_info & ICE_AQ_AN_COMPLETED) {
2134                         /* If autoneg is supported 10GBASE_T is the only PHY
2135                          * that can disable it, so otherwise return error
2136                          */
2137                         if (ethtool_link_ksettings_test_link_mode(ks,
2138                                                                   supported,
2139                                                                   Autoneg)) {
2140                                 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
2141                                 err = -EINVAL;
2142                         } else {
2143                                 /* Autoneg is allowed to change */
2144                                 config->caps &= ~ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
2145                                 *autoneg_changed = 1;
2146                         }
2147                 }
2148         }
2149
2150         return err;
2151 }
2152
2153 /**
2154  * ice_set_link_ksettings - Set Speed and Duplex
2155  * @netdev: network interface device structure
2156  * @ks: ethtool ksettings
2157  *
2158  * Set speed/duplex per media_types advertised/forced
2159  */
2160 static int
2161 ice_set_link_ksettings(struct net_device *netdev,
2162                        const struct ethtool_link_ksettings *ks)
2163 {
2164         struct ice_netdev_priv *np = netdev_priv(netdev);
2165         u8 autoneg, timeout = TEST_SET_BITS_TIMEOUT;
2166         struct ethtool_link_ksettings copy_ks = *ks;
2167         struct ethtool_link_ksettings safe_ks = {};
2168         struct ice_aqc_get_phy_caps_data *phy_caps;
2169         struct ice_aqc_set_phy_cfg_data config;
2170         u16 adv_link_speed, curr_link_speed;
2171         struct ice_pf *pf = np->vsi->back;
2172         struct ice_port_info *pi;
2173         u8 autoneg_changed = 0;
2174         enum ice_status status;
2175         u64 phy_type_high = 0;
2176         u64 phy_type_low = 0;
2177         int err = 0;
2178         bool linkup;
2179
2180         pi = np->vsi->port_info;
2181
2182         if (!pi)
2183                 return -EIO;
2184
2185         if (pi->phy.media_type != ICE_MEDIA_BASET &&
2186             pi->phy.media_type != ICE_MEDIA_FIBER &&
2187             pi->phy.media_type != ICE_MEDIA_BACKPLANE &&
2188             pi->phy.media_type != ICE_MEDIA_DA &&
2189             pi->phy.link_info.link_info & ICE_AQ_LINK_UP)
2190                 return -EOPNOTSUPP;
2191
2192         phy_caps = kzalloc(sizeof(*phy_caps), GFP_KERNEL);
2193         if (!phy_caps)
2194                 return -ENOMEM;
2195
2196         /* Get the PHY capabilities based on media */
2197         if (ice_fw_supports_report_dflt_cfg(pi->hw))
2198                 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_DFLT_CFG,
2199                                              phy_caps, NULL);
2200         else
2201                 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_MEDIA,
2202                                              phy_caps, NULL);
2203         if (status) {
2204                 err = -EIO;
2205                 goto done;
2206         }
2207
2208         /* save autoneg out of ksettings */
2209         autoneg = copy_ks.base.autoneg;
2210
2211         /* Get link modes supported by hardware.*/
2212         ice_phy_type_to_ethtool(netdev, &safe_ks);
2213
2214         /* and check against modes requested by user.
2215          * Return an error if unsupported mode was set.
2216          */
2217         if (!bitmap_subset(copy_ks.link_modes.advertising,
2218                            safe_ks.link_modes.supported,
2219                            __ETHTOOL_LINK_MODE_MASK_NBITS)) {
2220                 if (!test_bit(ICE_FLAG_LINK_LENIENT_MODE_ENA, pf->flags))
2221                         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");
2222                 err = -EOPNOTSUPP;
2223                 goto done;
2224         }
2225
2226         /* get our own copy of the bits to check against */
2227         memset(&safe_ks, 0, sizeof(safe_ks));
2228         safe_ks.base.cmd = copy_ks.base.cmd;
2229         safe_ks.base.link_mode_masks_nwords =
2230                 copy_ks.base.link_mode_masks_nwords;
2231         ice_get_link_ksettings(netdev, &safe_ks);
2232
2233         /* set autoneg back to what it currently is */
2234         copy_ks.base.autoneg = safe_ks.base.autoneg;
2235         /* we don't compare the speed */
2236         copy_ks.base.speed = safe_ks.base.speed;
2237
2238         /* If copy_ks.base and safe_ks.base are not the same now, then they are
2239          * trying to set something that we do not support.
2240          */
2241         if (memcmp(&copy_ks.base, &safe_ks.base, sizeof(copy_ks.base))) {
2242                 err = -EOPNOTSUPP;
2243                 goto done;
2244         }
2245
2246         while (test_and_set_bit(ICE_CFG_BUSY, pf->state)) {
2247                 timeout--;
2248                 if (!timeout) {
2249                         err = -EBUSY;
2250                         goto done;
2251                 }
2252                 usleep_range(TEST_SET_BITS_SLEEP_MIN, TEST_SET_BITS_SLEEP_MAX);
2253         }
2254
2255         /* Copy the current user PHY configuration. The current user PHY
2256          * configuration is initialized during probe from PHY capabilities
2257          * software mode, and updated on set PHY configuration.
2258          */
2259         config = pi->phy.curr_user_phy_cfg;
2260
2261         config.caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
2262
2263         /* Check autoneg */
2264         err = ice_setup_autoneg(pi, &safe_ks, &config, autoneg, &autoneg_changed,
2265                                 netdev);
2266
2267         if (err)
2268                 goto done;
2269
2270         /* Call to get the current link speed */
2271         pi->phy.get_link_info = true;
2272         status = ice_get_link_status(pi, &linkup);
2273         if (status) {
2274                 err = -EIO;
2275                 goto done;
2276         }
2277
2278         curr_link_speed = pi->phy.link_info.link_speed;
2279         adv_link_speed = ice_ksettings_find_adv_link_speed(ks);
2280
2281         /* If speed didn't get set, set it to what it currently is.
2282          * This is needed because if advertise is 0 (as it is when autoneg
2283          * is disabled) then speed won't get set.
2284          */
2285         if (!adv_link_speed)
2286                 adv_link_speed = curr_link_speed;
2287
2288         /* Convert the advertise link speeds to their corresponded PHY_TYPE */
2289         ice_update_phy_type(&phy_type_low, &phy_type_high, adv_link_speed);
2290
2291         if (!autoneg_changed && adv_link_speed == curr_link_speed) {
2292                 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
2293                 goto done;
2294         }
2295
2296         /* save the requested speeds */
2297         pi->phy.link_info.req_speeds = adv_link_speed;
2298
2299         /* set link and auto negotiation so changes take effect */
2300         config.caps |= ICE_AQ_PHY_ENA_LINK;
2301
2302         /* check if there is a PHY type for the requested advertised speed */
2303         if (!(phy_type_low || phy_type_high)) {
2304                 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");
2305                 err = -EOPNOTSUPP;
2306                 goto done;
2307         }
2308
2309         /* intersect requested advertised speed PHY types with media PHY types
2310          * for set PHY configuration
2311          */
2312         config.phy_type_high = cpu_to_le64(phy_type_high) &
2313                         phy_caps->phy_type_high;
2314         config.phy_type_low = cpu_to_le64(phy_type_low) &
2315                         phy_caps->phy_type_low;
2316
2317         if (!(config.phy_type_high || config.phy_type_low)) {
2318                 /* If there is no intersection and lenient mode is enabled, then
2319                  * intersect the requested advertised speed with NVM media type
2320                  * PHY types.
2321                  */
2322                 if (test_bit(ICE_FLAG_LINK_LENIENT_MODE_ENA, pf->flags)) {
2323                         config.phy_type_high = cpu_to_le64(phy_type_high) &
2324                                                pf->nvm_phy_type_hi;
2325                         config.phy_type_low = cpu_to_le64(phy_type_low) &
2326                                               pf->nvm_phy_type_lo;
2327                 } else {
2328                         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");
2329                         err = -EOPNOTSUPP;
2330                         goto done;
2331                 }
2332         }
2333
2334         /* If link is up put link down */
2335         if (pi->phy.link_info.link_info & ICE_AQ_LINK_UP) {
2336                 /* Tell the OS link is going down, the link will go
2337                  * back up when fw says it is ready asynchronously
2338                  */
2339                 ice_print_link_msg(np->vsi, false);
2340                 netif_carrier_off(netdev);
2341                 netif_tx_stop_all_queues(netdev);
2342         }
2343
2344         /* make the aq call */
2345         status = ice_aq_set_phy_cfg(&pf->hw, pi, &config, NULL);
2346         if (status) {
2347                 netdev_info(netdev, "Set phy config failed,\n");
2348                 err = -EIO;
2349                 goto done;
2350         }
2351
2352         /* Save speed request */
2353         pi->phy.curr_user_speed_req = adv_link_speed;
2354 done:
2355         kfree(phy_caps);
2356         clear_bit(ICE_CFG_BUSY, pf->state);
2357
2358         return err;
2359 }
2360
2361 /**
2362  * ice_parse_hdrs - parses headers from RSS hash input
2363  * @nfc: ethtool rxnfc command
2364  *
2365  * This function parses the rxnfc command and returns intended
2366  * header types for RSS configuration
2367  */
2368 static u32 ice_parse_hdrs(struct ethtool_rxnfc *nfc)
2369 {
2370         u32 hdrs = ICE_FLOW_SEG_HDR_NONE;
2371
2372         switch (nfc->flow_type) {
2373         case TCP_V4_FLOW:
2374                 hdrs |= ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV4;
2375                 break;
2376         case UDP_V4_FLOW:
2377                 hdrs |= ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV4;
2378                 break;
2379         case SCTP_V4_FLOW:
2380                 hdrs |= ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV4;
2381                 break;
2382         case TCP_V6_FLOW:
2383                 hdrs |= ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV6;
2384                 break;
2385         case UDP_V6_FLOW:
2386                 hdrs |= ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV6;
2387                 break;
2388         case SCTP_V6_FLOW:
2389                 hdrs |= ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV6;
2390                 break;
2391         default:
2392                 break;
2393         }
2394         return hdrs;
2395 }
2396
2397 #define ICE_FLOW_HASH_FLD_IPV4_SA       BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)
2398 #define ICE_FLOW_HASH_FLD_IPV6_SA       BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA)
2399 #define ICE_FLOW_HASH_FLD_IPV4_DA       BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)
2400 #define ICE_FLOW_HASH_FLD_IPV6_DA       BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)
2401 #define ICE_FLOW_HASH_FLD_TCP_SRC_PORT  BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT)
2402 #define ICE_FLOW_HASH_FLD_TCP_DST_PORT  BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT)
2403 #define ICE_FLOW_HASH_FLD_UDP_SRC_PORT  BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT)
2404 #define ICE_FLOW_HASH_FLD_UDP_DST_PORT  BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT)
2405 #define ICE_FLOW_HASH_FLD_SCTP_SRC_PORT \
2406         BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT)
2407 #define ICE_FLOW_HASH_FLD_SCTP_DST_PORT \
2408         BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT)
2409
2410 /**
2411  * ice_parse_hash_flds - parses hash fields from RSS hash input
2412  * @nfc: ethtool rxnfc command
2413  *
2414  * This function parses the rxnfc command and returns intended
2415  * hash fields for RSS configuration
2416  */
2417 static u64 ice_parse_hash_flds(struct ethtool_rxnfc *nfc)
2418 {
2419         u64 hfld = ICE_HASH_INVALID;
2420
2421         if (nfc->data & RXH_IP_SRC || nfc->data & RXH_IP_DST) {
2422                 switch (nfc->flow_type) {
2423                 case TCP_V4_FLOW:
2424                 case UDP_V4_FLOW:
2425                 case SCTP_V4_FLOW:
2426                         if (nfc->data & RXH_IP_SRC)
2427                                 hfld |= ICE_FLOW_HASH_FLD_IPV4_SA;
2428                         if (nfc->data & RXH_IP_DST)
2429                                 hfld |= ICE_FLOW_HASH_FLD_IPV4_DA;
2430                         break;
2431                 case TCP_V6_FLOW:
2432                 case UDP_V6_FLOW:
2433                 case SCTP_V6_FLOW:
2434                         if (nfc->data & RXH_IP_SRC)
2435                                 hfld |= ICE_FLOW_HASH_FLD_IPV6_SA;
2436                         if (nfc->data & RXH_IP_DST)
2437                                 hfld |= ICE_FLOW_HASH_FLD_IPV6_DA;
2438                         break;
2439                 default:
2440                         break;
2441                 }
2442         }
2443
2444         if (nfc->data & RXH_L4_B_0_1 || nfc->data & RXH_L4_B_2_3) {
2445                 switch (nfc->flow_type) {
2446                 case TCP_V4_FLOW:
2447                 case TCP_V6_FLOW:
2448                         if (nfc->data & RXH_L4_B_0_1)
2449                                 hfld |= ICE_FLOW_HASH_FLD_TCP_SRC_PORT;
2450                         if (nfc->data & RXH_L4_B_2_3)
2451                                 hfld |= ICE_FLOW_HASH_FLD_TCP_DST_PORT;
2452                         break;
2453                 case UDP_V4_FLOW:
2454                 case UDP_V6_FLOW:
2455                         if (nfc->data & RXH_L4_B_0_1)
2456                                 hfld |= ICE_FLOW_HASH_FLD_UDP_SRC_PORT;
2457                         if (nfc->data & RXH_L4_B_2_3)
2458                                 hfld |= ICE_FLOW_HASH_FLD_UDP_DST_PORT;
2459                         break;
2460                 case SCTP_V4_FLOW:
2461                 case SCTP_V6_FLOW:
2462                         if (nfc->data & RXH_L4_B_0_1)
2463                                 hfld |= ICE_FLOW_HASH_FLD_SCTP_SRC_PORT;
2464                         if (nfc->data & RXH_L4_B_2_3)
2465                                 hfld |= ICE_FLOW_HASH_FLD_SCTP_DST_PORT;
2466                         break;
2467                 default:
2468                         break;
2469                 }
2470         }
2471
2472         return hfld;
2473 }
2474
2475 /**
2476  * ice_set_rss_hash_opt - Enable/Disable flow types for RSS hash
2477  * @vsi: the VSI being configured
2478  * @nfc: ethtool rxnfc command
2479  *
2480  * Returns Success if the flow input set is supported.
2481  */
2482 static int
2483 ice_set_rss_hash_opt(struct ice_vsi *vsi, struct ethtool_rxnfc *nfc)
2484 {
2485         struct ice_pf *pf = vsi->back;
2486         enum ice_status status;
2487         struct device *dev;
2488         u64 hashed_flds;
2489         u32 hdrs;
2490
2491         dev = ice_pf_to_dev(pf);
2492         if (ice_is_safe_mode(pf)) {
2493                 dev_dbg(dev, "Advanced RSS disabled. Package download failed, vsi num = %d\n",
2494                         vsi->vsi_num);
2495                 return -EINVAL;
2496         }
2497
2498         hashed_flds = ice_parse_hash_flds(nfc);
2499         if (hashed_flds == ICE_HASH_INVALID) {
2500                 dev_dbg(dev, "Invalid hash fields, vsi num = %d\n",
2501                         vsi->vsi_num);
2502                 return -EINVAL;
2503         }
2504
2505         hdrs = ice_parse_hdrs(nfc);
2506         if (hdrs == ICE_FLOW_SEG_HDR_NONE) {
2507                 dev_dbg(dev, "Header type is not valid, vsi num = %d\n",
2508                         vsi->vsi_num);
2509                 return -EINVAL;
2510         }
2511
2512         status = ice_add_rss_cfg(&pf->hw, vsi->idx, hashed_flds, hdrs);
2513         if (status) {
2514                 dev_dbg(dev, "ice_add_rss_cfg failed, vsi num = %d, error = %s\n",
2515                         vsi->vsi_num, ice_stat_str(status));
2516                 return -EINVAL;
2517         }
2518
2519         return 0;
2520 }
2521
2522 /**
2523  * ice_get_rss_hash_opt - Retrieve hash fields for a given flow-type
2524  * @vsi: the VSI being configured
2525  * @nfc: ethtool rxnfc command
2526  */
2527 static void
2528 ice_get_rss_hash_opt(struct ice_vsi *vsi, struct ethtool_rxnfc *nfc)
2529 {
2530         struct ice_pf *pf = vsi->back;
2531         struct device *dev;
2532         u64 hash_flds;
2533         u32 hdrs;
2534
2535         dev = ice_pf_to_dev(pf);
2536
2537         nfc->data = 0;
2538         if (ice_is_safe_mode(pf)) {
2539                 dev_dbg(dev, "Advanced RSS disabled. Package download failed, vsi num = %d\n",
2540                         vsi->vsi_num);
2541                 return;
2542         }
2543
2544         hdrs = ice_parse_hdrs(nfc);
2545         if (hdrs == ICE_FLOW_SEG_HDR_NONE) {
2546                 dev_dbg(dev, "Header type is not valid, vsi num = %d\n",
2547                         vsi->vsi_num);
2548                 return;
2549         }
2550
2551         hash_flds = ice_get_rss_cfg(&pf->hw, vsi->idx, hdrs);
2552         if (hash_flds == ICE_HASH_INVALID) {
2553                 dev_dbg(dev, "No hash fields found for the given header type, vsi num = %d\n",
2554                         vsi->vsi_num);
2555                 return;
2556         }
2557
2558         if (hash_flds & ICE_FLOW_HASH_FLD_IPV4_SA ||
2559             hash_flds & ICE_FLOW_HASH_FLD_IPV6_SA)
2560                 nfc->data |= (u64)RXH_IP_SRC;
2561
2562         if (hash_flds & ICE_FLOW_HASH_FLD_IPV4_DA ||
2563             hash_flds & ICE_FLOW_HASH_FLD_IPV6_DA)
2564                 nfc->data |= (u64)RXH_IP_DST;
2565
2566         if (hash_flds & ICE_FLOW_HASH_FLD_TCP_SRC_PORT ||
2567             hash_flds & ICE_FLOW_HASH_FLD_UDP_SRC_PORT ||
2568             hash_flds & ICE_FLOW_HASH_FLD_SCTP_SRC_PORT)
2569                 nfc->data |= (u64)RXH_L4_B_0_1;
2570
2571         if (hash_flds & ICE_FLOW_HASH_FLD_TCP_DST_PORT ||
2572             hash_flds & ICE_FLOW_HASH_FLD_UDP_DST_PORT ||
2573             hash_flds & ICE_FLOW_HASH_FLD_SCTP_DST_PORT)
2574                 nfc->data |= (u64)RXH_L4_B_2_3;
2575 }
2576
2577 /**
2578  * ice_set_rxnfc - command to set Rx flow rules.
2579  * @netdev: network interface device structure
2580  * @cmd: ethtool rxnfc command
2581  *
2582  * Returns 0 for success and negative values for errors
2583  */
2584 static int ice_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
2585 {
2586         struct ice_netdev_priv *np = netdev_priv(netdev);
2587         struct ice_vsi *vsi = np->vsi;
2588
2589         switch (cmd->cmd) {
2590         case ETHTOOL_SRXCLSRLINS:
2591                 return ice_add_fdir_ethtool(vsi, cmd);
2592         case ETHTOOL_SRXCLSRLDEL:
2593                 return ice_del_fdir_ethtool(vsi, cmd);
2594         case ETHTOOL_SRXFH:
2595                 return ice_set_rss_hash_opt(vsi, cmd);
2596         default:
2597                 break;
2598         }
2599         return -EOPNOTSUPP;
2600 }
2601
2602 /**
2603  * ice_get_rxnfc - command to get Rx flow classification rules
2604  * @netdev: network interface device structure
2605  * @cmd: ethtool rxnfc command
2606  * @rule_locs: buffer to rturn Rx flow classification rules
2607  *
2608  * Returns Success if the command is supported.
2609  */
2610 static int
2611 ice_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
2612               u32 __always_unused *rule_locs)
2613 {
2614         struct ice_netdev_priv *np = netdev_priv(netdev);
2615         struct ice_vsi *vsi = np->vsi;
2616         int ret = -EOPNOTSUPP;
2617         struct ice_hw *hw;
2618
2619         hw = &vsi->back->hw;
2620
2621         switch (cmd->cmd) {
2622         case ETHTOOL_GRXRINGS:
2623                 cmd->data = vsi->rss_size;
2624                 ret = 0;
2625                 break;
2626         case ETHTOOL_GRXCLSRLCNT:
2627                 cmd->rule_cnt = hw->fdir_active_fltr;
2628                 /* report total rule count */
2629                 cmd->data = ice_get_fdir_cnt_all(hw);
2630                 ret = 0;
2631                 break;
2632         case ETHTOOL_GRXCLSRULE:
2633                 ret = ice_get_ethtool_fdir_entry(hw, cmd);
2634                 break;
2635         case ETHTOOL_GRXCLSRLALL:
2636                 ret = ice_get_fdir_fltr_ids(hw, cmd, (u32 *)rule_locs);
2637                 break;
2638         case ETHTOOL_GRXFH:
2639                 ice_get_rss_hash_opt(vsi, cmd);
2640                 ret = 0;
2641                 break;
2642         default:
2643                 break;
2644         }
2645
2646         return ret;
2647 }
2648
2649 static void
2650 ice_get_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring)
2651 {
2652         struct ice_netdev_priv *np = netdev_priv(netdev);
2653         struct ice_vsi *vsi = np->vsi;
2654
2655         ring->rx_max_pending = ICE_MAX_NUM_DESC;
2656         ring->tx_max_pending = ICE_MAX_NUM_DESC;
2657         ring->rx_pending = vsi->rx_rings[0]->count;
2658         ring->tx_pending = vsi->tx_rings[0]->count;
2659
2660         /* Rx mini and jumbo rings are not supported */
2661         ring->rx_mini_max_pending = 0;
2662         ring->rx_jumbo_max_pending = 0;
2663         ring->rx_mini_pending = 0;
2664         ring->rx_jumbo_pending = 0;
2665 }
2666
2667 static int
2668 ice_set_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring)
2669 {
2670         struct ice_ring *tx_rings = NULL, *rx_rings = NULL;
2671         struct ice_netdev_priv *np = netdev_priv(netdev);
2672         struct ice_ring *xdp_rings = NULL;
2673         struct ice_vsi *vsi = np->vsi;
2674         struct ice_pf *pf = vsi->back;
2675         int i, timeout = 50, err = 0;
2676         u16 new_rx_cnt, new_tx_cnt;
2677
2678         if (ring->tx_pending > ICE_MAX_NUM_DESC ||
2679             ring->tx_pending < ICE_MIN_NUM_DESC ||
2680             ring->rx_pending > ICE_MAX_NUM_DESC ||
2681             ring->rx_pending < ICE_MIN_NUM_DESC) {
2682                 netdev_err(netdev, "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d] (increment %d)\n",
2683                            ring->tx_pending, ring->rx_pending,
2684                            ICE_MIN_NUM_DESC, ICE_MAX_NUM_DESC,
2685                            ICE_REQ_DESC_MULTIPLE);
2686                 return -EINVAL;
2687         }
2688
2689         new_tx_cnt = ALIGN(ring->tx_pending, ICE_REQ_DESC_MULTIPLE);
2690         if (new_tx_cnt != ring->tx_pending)
2691                 netdev_info(netdev, "Requested Tx descriptor count rounded up to %d\n",
2692                             new_tx_cnt);
2693         new_rx_cnt = ALIGN(ring->rx_pending, ICE_REQ_DESC_MULTIPLE);
2694         if (new_rx_cnt != ring->rx_pending)
2695                 netdev_info(netdev, "Requested Rx descriptor count rounded up to %d\n",
2696                             new_rx_cnt);
2697
2698         /* if nothing to do return success */
2699         if (new_tx_cnt == vsi->tx_rings[0]->count &&
2700             new_rx_cnt == vsi->rx_rings[0]->count) {
2701                 netdev_dbg(netdev, "Nothing to change, descriptor count is same as requested\n");
2702                 return 0;
2703         }
2704
2705         /* If there is a AF_XDP UMEM attached to any of Rx rings,
2706          * disallow changing the number of descriptors -- regardless
2707          * if the netdev is running or not.
2708          */
2709         if (ice_xsk_any_rx_ring_ena(vsi))
2710                 return -EBUSY;
2711
2712         while (test_and_set_bit(ICE_CFG_BUSY, pf->state)) {
2713                 timeout--;
2714                 if (!timeout)
2715                         return -EBUSY;
2716                 usleep_range(1000, 2000);
2717         }
2718
2719         /* set for the next time the netdev is started */
2720         if (!netif_running(vsi->netdev)) {
2721                 for (i = 0; i < vsi->alloc_txq; i++)
2722                         vsi->tx_rings[i]->count = new_tx_cnt;
2723                 for (i = 0; i < vsi->alloc_rxq; i++)
2724                         vsi->rx_rings[i]->count = new_rx_cnt;
2725                 if (ice_is_xdp_ena_vsi(vsi))
2726                         for (i = 0; i < vsi->num_xdp_txq; i++)
2727                                 vsi->xdp_rings[i]->count = new_tx_cnt;
2728                 vsi->num_tx_desc = (u16)new_tx_cnt;
2729                 vsi->num_rx_desc = (u16)new_rx_cnt;
2730                 netdev_dbg(netdev, "Link is down, descriptor count change happens when link is brought up\n");
2731                 goto done;
2732         }
2733
2734         if (new_tx_cnt == vsi->tx_rings[0]->count)
2735                 goto process_rx;
2736
2737         /* alloc updated Tx resources */
2738         netdev_info(netdev, "Changing Tx descriptor count from %d to %d\n",
2739                     vsi->tx_rings[0]->count, new_tx_cnt);
2740
2741         tx_rings = kcalloc(vsi->num_txq, sizeof(*tx_rings), GFP_KERNEL);
2742         if (!tx_rings) {
2743                 err = -ENOMEM;
2744                 goto done;
2745         }
2746
2747         ice_for_each_txq(vsi, i) {
2748                 /* clone ring and setup updated count */
2749                 tx_rings[i] = *vsi->tx_rings[i];
2750                 tx_rings[i].count = new_tx_cnt;
2751                 tx_rings[i].desc = NULL;
2752                 tx_rings[i].tx_buf = NULL;
2753                 err = ice_setup_tx_ring(&tx_rings[i]);
2754                 if (err) {
2755                         while (i--)
2756                                 ice_clean_tx_ring(&tx_rings[i]);
2757                         kfree(tx_rings);
2758                         goto done;
2759                 }
2760         }
2761
2762         if (!ice_is_xdp_ena_vsi(vsi))
2763                 goto process_rx;
2764
2765         /* alloc updated XDP resources */
2766         netdev_info(netdev, "Changing XDP descriptor count from %d to %d\n",
2767                     vsi->xdp_rings[0]->count, new_tx_cnt);
2768
2769         xdp_rings = kcalloc(vsi->num_xdp_txq, sizeof(*xdp_rings), GFP_KERNEL);
2770         if (!xdp_rings) {
2771                 err = -ENOMEM;
2772                 goto free_tx;
2773         }
2774
2775         for (i = 0; i < vsi->num_xdp_txq; i++) {
2776                 /* clone ring and setup updated count */
2777                 xdp_rings[i] = *vsi->xdp_rings[i];
2778                 xdp_rings[i].count = new_tx_cnt;
2779                 xdp_rings[i].desc = NULL;
2780                 xdp_rings[i].tx_buf = NULL;
2781                 err = ice_setup_tx_ring(&xdp_rings[i]);
2782                 if (err) {
2783                         while (i--)
2784                                 ice_clean_tx_ring(&xdp_rings[i]);
2785                         kfree(xdp_rings);
2786                         goto free_tx;
2787                 }
2788                 ice_set_ring_xdp(&xdp_rings[i]);
2789         }
2790
2791 process_rx:
2792         if (new_rx_cnt == vsi->rx_rings[0]->count)
2793                 goto process_link;
2794
2795         /* alloc updated Rx resources */
2796         netdev_info(netdev, "Changing Rx descriptor count from %d to %d\n",
2797                     vsi->rx_rings[0]->count, new_rx_cnt);
2798
2799         rx_rings = kcalloc(vsi->num_rxq, sizeof(*rx_rings), GFP_KERNEL);
2800         if (!rx_rings) {
2801                 err = -ENOMEM;
2802                 goto done;
2803         }
2804
2805         ice_for_each_rxq(vsi, i) {
2806                 /* clone ring and setup updated count */
2807                 rx_rings[i] = *vsi->rx_rings[i];
2808                 rx_rings[i].count = new_rx_cnt;
2809                 rx_rings[i].desc = NULL;
2810                 rx_rings[i].rx_buf = NULL;
2811                 /* this is to allow wr32 to have something to write to
2812                  * during early allocation of Rx buffers
2813                  */
2814                 rx_rings[i].tail = vsi->back->hw.hw_addr + PRTGEN_STATUS;
2815
2816                 err = ice_setup_rx_ring(&rx_rings[i]);
2817                 if (err)
2818                         goto rx_unwind;
2819
2820                 /* allocate Rx buffers */
2821                 err = ice_alloc_rx_bufs(&rx_rings[i],
2822                                         ICE_DESC_UNUSED(&rx_rings[i]));
2823 rx_unwind:
2824                 if (err) {
2825                         while (i) {
2826                                 i--;
2827                                 ice_free_rx_ring(&rx_rings[i]);
2828                         }
2829                         kfree(rx_rings);
2830                         err = -ENOMEM;
2831                         goto free_tx;
2832                 }
2833         }
2834
2835 process_link:
2836         /* Bring interface down, copy in the new ring info, then restore the
2837          * interface. if VSI is up, bring it down and then back up
2838          */
2839         if (!test_and_set_bit(ICE_VSI_DOWN, vsi->state)) {
2840                 ice_down(vsi);
2841
2842                 if (tx_rings) {
2843                         ice_for_each_txq(vsi, i) {
2844                                 ice_free_tx_ring(vsi->tx_rings[i]);
2845                                 *vsi->tx_rings[i] = tx_rings[i];
2846                         }
2847                         kfree(tx_rings);
2848                 }
2849
2850                 if (rx_rings) {
2851                         ice_for_each_rxq(vsi, i) {
2852                                 ice_free_rx_ring(vsi->rx_rings[i]);
2853                                 /* copy the real tail offset */
2854                                 rx_rings[i].tail = vsi->rx_rings[i]->tail;
2855                                 /* this is to fake out the allocation routine
2856                                  * into thinking it has to realloc everything
2857                                  * but the recycling logic will let us re-use
2858                                  * the buffers allocated above
2859                                  */
2860                                 rx_rings[i].next_to_use = 0;
2861                                 rx_rings[i].next_to_clean = 0;
2862                                 rx_rings[i].next_to_alloc = 0;
2863                                 *vsi->rx_rings[i] = rx_rings[i];
2864                         }
2865                         kfree(rx_rings);
2866                 }
2867
2868                 if (xdp_rings) {
2869                         for (i = 0; i < vsi->num_xdp_txq; i++) {
2870                                 ice_free_tx_ring(vsi->xdp_rings[i]);
2871                                 *vsi->xdp_rings[i] = xdp_rings[i];
2872                         }
2873                         kfree(xdp_rings);
2874                 }
2875
2876                 vsi->num_tx_desc = new_tx_cnt;
2877                 vsi->num_rx_desc = new_rx_cnt;
2878                 ice_up(vsi);
2879         }
2880         goto done;
2881
2882 free_tx:
2883         /* error cleanup if the Rx allocations failed after getting Tx */
2884         if (tx_rings) {
2885                 ice_for_each_txq(vsi, i)
2886                         ice_free_tx_ring(&tx_rings[i]);
2887                 kfree(tx_rings);
2888         }
2889
2890 done:
2891         clear_bit(ICE_CFG_BUSY, pf->state);
2892         return err;
2893 }
2894
2895 /**
2896  * ice_get_pauseparam - Get Flow Control status
2897  * @netdev: network interface device structure
2898  * @pause: ethernet pause (flow control) parameters
2899  *
2900  * Get requested flow control status from PHY capability.
2901  * If autoneg is true, then ethtool will send the ETHTOOL_GSET ioctl which
2902  * is handled by ice_get_link_ksettings. ice_get_link_ksettings will report
2903  * the negotiated Rx/Tx pause via lp_advertising.
2904  */
2905 static void
2906 ice_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause)
2907 {
2908         struct ice_netdev_priv *np = netdev_priv(netdev);
2909         struct ice_port_info *pi = np->vsi->port_info;
2910         struct ice_aqc_get_phy_caps_data *pcaps;
2911         struct ice_dcbx_cfg *dcbx_cfg;
2912         enum ice_status status;
2913
2914         /* Initialize pause params */
2915         pause->rx_pause = 0;
2916         pause->tx_pause = 0;
2917
2918         dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg;
2919
2920         pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL);
2921         if (!pcaps)
2922                 return;
2923
2924         /* Get current PHY config */
2925         status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_ACTIVE_CFG, pcaps,
2926                                      NULL);
2927         if (status)
2928                 goto out;
2929
2930         pause->autoneg = ice_is_phy_caps_an_enabled(pcaps) ? AUTONEG_ENABLE :
2931                                                              AUTONEG_DISABLE;
2932
2933         if (dcbx_cfg->pfc.pfcena)
2934                 /* PFC enabled so report LFC as off */
2935                 goto out;
2936
2937         if (pcaps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE)
2938                 pause->tx_pause = 1;
2939         if (pcaps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE)
2940                 pause->rx_pause = 1;
2941
2942 out:
2943         kfree(pcaps);
2944 }
2945
2946 /**
2947  * ice_set_pauseparam - Set Flow Control parameter
2948  * @netdev: network interface device structure
2949  * @pause: return Tx/Rx flow control status
2950  */
2951 static int
2952 ice_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause)
2953 {
2954         struct ice_netdev_priv *np = netdev_priv(netdev);
2955         struct ice_aqc_get_phy_caps_data *pcaps;
2956         struct ice_link_status *hw_link_info;
2957         struct ice_pf *pf = np->vsi->back;
2958         struct ice_dcbx_cfg *dcbx_cfg;
2959         struct ice_vsi *vsi = np->vsi;
2960         struct ice_hw *hw = &pf->hw;
2961         struct ice_port_info *pi;
2962         enum ice_status status;
2963         u8 aq_failures;
2964         bool link_up;
2965         int err = 0;
2966         u32 is_an;
2967
2968         pi = vsi->port_info;
2969         hw_link_info = &pi->phy.link_info;
2970         dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg;
2971         link_up = hw_link_info->link_info & ICE_AQ_LINK_UP;
2972
2973         /* Changing the port's flow control is not supported if this isn't the
2974          * PF VSI
2975          */
2976         if (vsi->type != ICE_VSI_PF) {
2977                 netdev_info(netdev, "Changing flow control parameters only supported for PF VSI\n");
2978                 return -EOPNOTSUPP;
2979         }
2980
2981         /* Get pause param reports configured and negotiated flow control pause
2982          * when ETHTOOL_GLINKSETTINGS is defined. Since ETHTOOL_GLINKSETTINGS is
2983          * defined get pause param pause->autoneg reports SW configured setting,
2984          * so compare pause->autoneg with SW configured to prevent the user from
2985          * using set pause param to chance autoneg.
2986          */
2987         pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL);
2988         if (!pcaps)
2989                 return -ENOMEM;
2990
2991         /* Get current PHY config */
2992         status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_ACTIVE_CFG, pcaps,
2993                                      NULL);
2994         if (status) {
2995                 kfree(pcaps);
2996                 return -EIO;
2997         }
2998
2999         is_an = ice_is_phy_caps_an_enabled(pcaps) ? AUTONEG_ENABLE :
3000                                                     AUTONEG_DISABLE;
3001
3002         kfree(pcaps);
3003
3004         if (pause->autoneg != is_an) {
3005                 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
3006                 return -EOPNOTSUPP;
3007         }
3008
3009         /* If we have link and don't have autoneg */
3010         if (!test_bit(ICE_DOWN, pf->state) &&
3011             !(hw_link_info->an_info & ICE_AQ_AN_COMPLETED)) {
3012                 /* Send message that it might not necessarily work*/
3013                 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
3014         }
3015
3016         if (dcbx_cfg->pfc.pfcena) {
3017                 netdev_info(netdev, "Priority flow control enabled. Cannot set link flow control.\n");
3018                 return -EOPNOTSUPP;
3019         }
3020         if (pause->rx_pause && pause->tx_pause)
3021                 pi->fc.req_mode = ICE_FC_FULL;
3022         else if (pause->rx_pause && !pause->tx_pause)
3023                 pi->fc.req_mode = ICE_FC_RX_PAUSE;
3024         else if (!pause->rx_pause && pause->tx_pause)
3025                 pi->fc.req_mode = ICE_FC_TX_PAUSE;
3026         else if (!pause->rx_pause && !pause->tx_pause)
3027                 pi->fc.req_mode = ICE_FC_NONE;
3028         else
3029                 return -EINVAL;
3030
3031         /* Set the FC mode and only restart AN if link is up */
3032         status = ice_set_fc(pi, &aq_failures, link_up);
3033
3034         if (aq_failures & ICE_SET_FC_AQ_FAIL_GET) {
3035                 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n",
3036                             ice_stat_str(status),
3037                             ice_aq_str(hw->adminq.sq_last_status));
3038                 err = -EAGAIN;
3039         } else if (aq_failures & ICE_SET_FC_AQ_FAIL_SET) {
3040                 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n",
3041                             ice_stat_str(status),
3042                             ice_aq_str(hw->adminq.sq_last_status));
3043                 err = -EAGAIN;
3044         } else if (aq_failures & ICE_SET_FC_AQ_FAIL_UPDATE) {
3045                 netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n",
3046                             ice_stat_str(status),
3047                             ice_aq_str(hw->adminq.sq_last_status));
3048                 err = -EAGAIN;
3049         }
3050
3051         return err;
3052 }
3053
3054 /**
3055  * ice_get_rxfh_key_size - get the RSS hash key size
3056  * @netdev: network interface device structure
3057  *
3058  * Returns the table size.
3059  */
3060 static u32 ice_get_rxfh_key_size(struct net_device __always_unused *netdev)
3061 {
3062         return ICE_VSIQF_HKEY_ARRAY_SIZE;
3063 }
3064
3065 /**
3066  * ice_get_rxfh_indir_size - get the Rx flow hash indirection table size
3067  * @netdev: network interface device structure
3068  *
3069  * Returns the table size.
3070  */
3071 static u32 ice_get_rxfh_indir_size(struct net_device *netdev)
3072 {
3073         struct ice_netdev_priv *np = netdev_priv(netdev);
3074
3075         return np->vsi->rss_table_size;
3076 }
3077
3078 /**
3079  * ice_get_rxfh - get the Rx flow hash indirection table
3080  * @netdev: network interface device structure
3081  * @indir: indirection table
3082  * @key: hash key
3083  * @hfunc: hash function
3084  *
3085  * Reads the indirection table directly from the hardware.
3086  */
3087 static int
3088 ice_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, u8 *hfunc)
3089 {
3090         struct ice_netdev_priv *np = netdev_priv(netdev);
3091         struct ice_vsi *vsi = np->vsi;
3092         struct ice_pf *pf = vsi->back;
3093         int err, i;
3094         u8 *lut;
3095
3096         if (hfunc)
3097                 *hfunc = ETH_RSS_HASH_TOP;
3098
3099         if (!indir)
3100                 return 0;
3101
3102         if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) {
3103                 /* RSS not supported return error here */
3104                 netdev_warn(netdev, "RSS is not configured on this VSI!\n");
3105                 return -EIO;
3106         }
3107
3108         lut = kzalloc(vsi->rss_table_size, GFP_KERNEL);
3109         if (!lut)
3110                 return -ENOMEM;
3111
3112         err = ice_get_rss_key(vsi, key);
3113         if (err)
3114                 goto out;
3115
3116         err = ice_get_rss_lut(vsi, lut, vsi->rss_table_size);
3117         if (err)
3118                 goto out;
3119
3120         for (i = 0; i < vsi->rss_table_size; i++)
3121                 indir[i] = (u32)(lut[i]);
3122
3123 out:
3124         kfree(lut);
3125         return err;
3126 }
3127
3128 /**
3129  * ice_set_rxfh - set the Rx flow hash indirection table
3130  * @netdev: network interface device structure
3131  * @indir: indirection table
3132  * @key: hash key
3133  * @hfunc: hash function
3134  *
3135  * Returns -EINVAL if the table specifies an invalid queue ID, otherwise
3136  * returns 0 after programming the table.
3137  */
3138 static int
3139 ice_set_rxfh(struct net_device *netdev, const u32 *indir, const u8 *key,
3140              const u8 hfunc)
3141 {
3142         struct ice_netdev_priv *np = netdev_priv(netdev);
3143         struct ice_vsi *vsi = np->vsi;
3144         struct ice_pf *pf = vsi->back;
3145         struct device *dev;
3146         int err;
3147
3148         dev = ice_pf_to_dev(pf);
3149         if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
3150                 return -EOPNOTSUPP;
3151
3152         if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) {
3153                 /* RSS not supported return error here */
3154                 netdev_warn(netdev, "RSS is not configured on this VSI!\n");
3155                 return -EIO;
3156         }
3157
3158         if (key) {
3159                 if (!vsi->rss_hkey_user) {
3160                         vsi->rss_hkey_user =
3161                                 devm_kzalloc(dev, ICE_VSIQF_HKEY_ARRAY_SIZE,
3162                                              GFP_KERNEL);
3163                         if (!vsi->rss_hkey_user)
3164                                 return -ENOMEM;
3165                 }
3166                 memcpy(vsi->rss_hkey_user, key, ICE_VSIQF_HKEY_ARRAY_SIZE);
3167
3168                 err = ice_set_rss_key(vsi, vsi->rss_hkey_user);
3169                 if (err)
3170                         return err;
3171         }
3172
3173         if (!vsi->rss_lut_user) {
3174                 vsi->rss_lut_user = devm_kzalloc(dev, vsi->rss_table_size,
3175                                                  GFP_KERNEL);
3176                 if (!vsi->rss_lut_user)
3177                         return -ENOMEM;
3178         }
3179
3180         /* Each 32 bits pointed by 'indir' is stored with a lut entry */
3181         if (indir) {
3182                 int i;
3183
3184                 for (i = 0; i < vsi->rss_table_size; i++)
3185                         vsi->rss_lut_user[i] = (u8)(indir[i]);
3186         } else {
3187                 ice_fill_rss_lut(vsi->rss_lut_user, vsi->rss_table_size,
3188                                  vsi->rss_size);
3189         }
3190
3191         err = ice_set_rss_lut(vsi, vsi->rss_lut_user, vsi->rss_table_size);
3192         if (err)
3193                 return err;
3194
3195         return 0;
3196 }
3197
3198 /**
3199  * ice_get_max_txq - return the maximum number of Tx queues for in a PF
3200  * @pf: PF structure
3201  */
3202 static int ice_get_max_txq(struct ice_pf *pf)
3203 {
3204         return min3(pf->num_lan_msix, (u16)num_online_cpus(),
3205                     (u16)pf->hw.func_caps.common_cap.num_txq);
3206 }
3207
3208 /**
3209  * ice_get_max_rxq - return the maximum number of Rx queues for in a PF
3210  * @pf: PF structure
3211  */
3212 static int ice_get_max_rxq(struct ice_pf *pf)
3213 {
3214         return min3(pf->num_lan_msix, (u16)num_online_cpus(),
3215                     (u16)pf->hw.func_caps.common_cap.num_rxq);
3216 }
3217
3218 /**
3219  * ice_get_combined_cnt - return the current number of combined channels
3220  * @vsi: PF VSI pointer
3221  *
3222  * Go through all queue vectors and count ones that have both Rx and Tx ring
3223  * attached
3224  */
3225 static u32 ice_get_combined_cnt(struct ice_vsi *vsi)
3226 {
3227         u32 combined = 0;
3228         int q_idx;
3229
3230         ice_for_each_q_vector(vsi, q_idx) {
3231                 struct ice_q_vector *q_vector = vsi->q_vectors[q_idx];
3232
3233                 if (q_vector->rx.ring && q_vector->tx.ring)
3234                         combined++;
3235         }
3236
3237         return combined;
3238 }
3239
3240 /**
3241  * ice_get_channels - get the current and max supported channels
3242  * @dev: network interface device structure
3243  * @ch: ethtool channel data structure
3244  */
3245 static void
3246 ice_get_channels(struct net_device *dev, struct ethtool_channels *ch)
3247 {
3248         struct ice_netdev_priv *np = netdev_priv(dev);
3249         struct ice_vsi *vsi = np->vsi;
3250         struct ice_pf *pf = vsi->back;
3251
3252         /* report maximum channels */
3253         ch->max_rx = ice_get_max_rxq(pf);
3254         ch->max_tx = ice_get_max_txq(pf);
3255         ch->max_combined = min_t(int, ch->max_rx, ch->max_tx);
3256
3257         /* report current channels */
3258         ch->combined_count = ice_get_combined_cnt(vsi);
3259         ch->rx_count = vsi->num_rxq - ch->combined_count;
3260         ch->tx_count = vsi->num_txq - ch->combined_count;
3261
3262         /* report other queues */
3263         ch->other_count = test_bit(ICE_FLAG_FD_ENA, pf->flags) ? 1 : 0;
3264         ch->max_other = ch->other_count;
3265 }
3266
3267 /**
3268  * ice_get_valid_rss_size - return valid number of RSS queues
3269  * @hw: pointer to the HW structure
3270  * @new_size: requested RSS queues
3271  */
3272 static int ice_get_valid_rss_size(struct ice_hw *hw, int new_size)
3273 {
3274         struct ice_hw_common_caps *caps = &hw->func_caps.common_cap;
3275
3276         return min_t(int, new_size, BIT(caps->rss_table_entry_width));
3277 }
3278
3279 /**
3280  * ice_vsi_set_dflt_rss_lut - set default RSS LUT with requested RSS size
3281  * @vsi: VSI to reconfigure RSS LUT on
3282  * @req_rss_size: requested range of queue numbers for hashing
3283  *
3284  * Set the VSI's RSS parameters, configure the RSS LUT based on these.
3285  */
3286 static int ice_vsi_set_dflt_rss_lut(struct ice_vsi *vsi, int req_rss_size)
3287 {
3288         struct ice_pf *pf = vsi->back;
3289         struct device *dev;
3290         struct ice_hw *hw;
3291         int err;
3292         u8 *lut;
3293
3294         dev = ice_pf_to_dev(pf);
3295         hw = &pf->hw;
3296
3297         if (!req_rss_size)
3298                 return -EINVAL;
3299
3300         lut = kzalloc(vsi->rss_table_size, GFP_KERNEL);
3301         if (!lut)
3302                 return -ENOMEM;
3303
3304         /* set RSS LUT parameters */
3305         if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags))
3306                 vsi->rss_size = 1;
3307         else
3308                 vsi->rss_size = ice_get_valid_rss_size(hw, req_rss_size);
3309
3310         /* create/set RSS LUT */
3311         ice_fill_rss_lut(lut, vsi->rss_table_size, vsi->rss_size);
3312         err = ice_set_rss_lut(vsi, lut, vsi->rss_table_size);
3313         if (err)
3314                 dev_err(dev, "Cannot set RSS lut, err %d aq_err %s\n", err,
3315                         ice_aq_str(hw->adminq.sq_last_status));
3316
3317         kfree(lut);
3318         return err;
3319 }
3320
3321 /**
3322  * ice_set_channels - set the number channels
3323  * @dev: network interface device structure
3324  * @ch: ethtool channel data structure
3325  */
3326 static int ice_set_channels(struct net_device *dev, struct ethtool_channels *ch)
3327 {
3328         struct ice_netdev_priv *np = netdev_priv(dev);
3329         struct ice_vsi *vsi = np->vsi;
3330         struct ice_pf *pf = vsi->back;
3331         int new_rx = 0, new_tx = 0;
3332         u32 curr_combined;
3333
3334         /* do not support changing channels in Safe Mode */
3335         if (ice_is_safe_mode(pf)) {
3336                 netdev_err(dev, "Changing channel in Safe Mode is not supported\n");
3337                 return -EOPNOTSUPP;
3338         }
3339         /* do not support changing other_count */
3340         if (ch->other_count != (test_bit(ICE_FLAG_FD_ENA, pf->flags) ? 1U : 0U))
3341                 return -EINVAL;
3342
3343         if (test_bit(ICE_FLAG_FD_ENA, pf->flags) && pf->hw.fdir_active_fltr) {
3344                 netdev_err(dev, "Cannot set channels when Flow Director filters are active\n");
3345                 return -EOPNOTSUPP;
3346         }
3347
3348         curr_combined = ice_get_combined_cnt(vsi);
3349
3350         /* these checks are for cases where user didn't specify a particular
3351          * value on cmd line but we get non-zero value anyway via
3352          * get_channels(); look at ethtool.c in ethtool repository (the user
3353          * space part), particularly, do_schannels() routine
3354          */
3355         if (ch->rx_count == vsi->num_rxq - curr_combined)
3356                 ch->rx_count = 0;
3357         if (ch->tx_count == vsi->num_txq - curr_combined)
3358                 ch->tx_count = 0;
3359         if (ch->combined_count == curr_combined)
3360                 ch->combined_count = 0;
3361
3362         if (!(ch->combined_count || (ch->rx_count && ch->tx_count))) {
3363                 netdev_err(dev, "Please specify at least 1 Rx and 1 Tx channel\n");
3364                 return -EINVAL;
3365         }
3366
3367         new_rx = ch->combined_count + ch->rx_count;
3368         new_tx = ch->combined_count + ch->tx_count;
3369
3370         if (new_rx > ice_get_max_rxq(pf)) {
3371                 netdev_err(dev, "Maximum allowed Rx channels is %d\n",
3372                            ice_get_max_rxq(pf));
3373                 return -EINVAL;
3374         }
3375         if (new_tx > ice_get_max_txq(pf)) {
3376                 netdev_err(dev, "Maximum allowed Tx channels is %d\n",
3377                            ice_get_max_txq(pf));
3378                 return -EINVAL;
3379         }
3380
3381         ice_vsi_recfg_qs(vsi, new_rx, new_tx);
3382
3383         if (!netif_is_rxfh_configured(dev))
3384                 return ice_vsi_set_dflt_rss_lut(vsi, new_rx);
3385
3386         /* Update rss_size due to change in Rx queues */
3387         vsi->rss_size = ice_get_valid_rss_size(&pf->hw, new_rx);
3388
3389         return 0;
3390 }
3391
3392 /**
3393  * ice_get_wol - get current Wake on LAN configuration
3394  * @netdev: network interface device structure
3395  * @wol: Ethtool structure to retrieve WoL settings
3396  */
3397 static void ice_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
3398 {
3399         struct ice_netdev_priv *np = netdev_priv(netdev);
3400         struct ice_pf *pf = np->vsi->back;
3401
3402         if (np->vsi->type != ICE_VSI_PF)
3403                 netdev_warn(netdev, "Wake on LAN is not supported on this interface!\n");
3404
3405         /* Get WoL settings based on the HW capability */
3406         if (ice_is_wol_supported(&pf->hw)) {
3407                 wol->supported = WAKE_MAGIC;
3408                 wol->wolopts = pf->wol_ena ? WAKE_MAGIC : 0;
3409         } else {
3410                 wol->supported = 0;
3411                 wol->wolopts = 0;
3412         }
3413 }
3414
3415 /**
3416  * ice_set_wol - set Wake on LAN on supported device
3417  * @netdev: network interface device structure
3418  * @wol: Ethtool structure to set WoL
3419  */
3420 static int ice_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
3421 {
3422         struct ice_netdev_priv *np = netdev_priv(netdev);
3423         struct ice_vsi *vsi = np->vsi;
3424         struct ice_pf *pf = vsi->back;
3425
3426         if (vsi->type != ICE_VSI_PF || !ice_is_wol_supported(&pf->hw))
3427                 return -EOPNOTSUPP;
3428
3429         /* only magic packet is supported */
3430         if (wol->wolopts && wol->wolopts != WAKE_MAGIC)
3431                 return -EOPNOTSUPP;
3432
3433         /* Set WoL only if there is a new value */
3434         if (pf->wol_ena != !!wol->wolopts) {
3435                 pf->wol_ena = !!wol->wolopts;
3436                 device_set_wakeup_enable(ice_pf_to_dev(pf), pf->wol_ena);
3437                 netdev_dbg(netdev, "WoL magic packet %sabled\n",
3438                            pf->wol_ena ? "en" : "dis");
3439         }
3440
3441         return 0;
3442 }
3443
3444 enum ice_container_type {
3445         ICE_RX_CONTAINER,
3446         ICE_TX_CONTAINER,
3447 };
3448
3449 /**
3450  * ice_get_rc_coalesce - get ITR values for specific ring container
3451  * @ec: ethtool structure to fill with driver's coalesce settings
3452  * @c_type: container type, Rx or Tx
3453  * @rc: ring container that the ITR values will come from
3454  *
3455  * Query the device for ice_ring_container specific ITR values. This is
3456  * done per ice_ring_container because each q_vector can have 1 or more rings
3457  * and all of said ring(s) will have the same ITR values.
3458  *
3459  * Returns 0 on success, negative otherwise.
3460  */
3461 static int
3462 ice_get_rc_coalesce(struct ethtool_coalesce *ec, enum ice_container_type c_type,
3463                     struct ice_ring_container *rc)
3464 {
3465         struct ice_pf *pf;
3466
3467         if (!rc->ring)
3468                 return -EINVAL;
3469
3470         pf = rc->ring->vsi->back;
3471
3472         switch (c_type) {
3473         case ICE_RX_CONTAINER:
3474                 ec->use_adaptive_rx_coalesce = ITR_IS_DYNAMIC(rc);
3475                 ec->rx_coalesce_usecs = rc->itr_setting;
3476                 ec->rx_coalesce_usecs_high = rc->ring->q_vector->intrl;
3477                 break;
3478         case ICE_TX_CONTAINER:
3479                 ec->use_adaptive_tx_coalesce = ITR_IS_DYNAMIC(rc);
3480                 ec->tx_coalesce_usecs = rc->itr_setting;
3481                 break;
3482         default:
3483                 dev_dbg(ice_pf_to_dev(pf), "Invalid c_type %d\n", c_type);
3484                 return -EINVAL;
3485         }
3486
3487         return 0;
3488 }
3489
3490 /**
3491  * ice_get_q_coalesce - get a queue's ITR/INTRL (coalesce) settings
3492  * @vsi: VSI associated to the queue for getting ITR/INTRL (coalesce) settings
3493  * @ec: coalesce settings to program the device with
3494  * @q_num: update ITR/INTRL (coalesce) settings for this queue number/index
3495  *
3496  * Return 0 on success, and negative under the following conditions:
3497  * 1. Getting Tx or Rx ITR/INTRL (coalesce) settings failed.
3498  * 2. The q_num passed in is not a valid number/index for Tx and Rx rings.
3499  */
3500 static int
3501 ice_get_q_coalesce(struct ice_vsi *vsi, struct ethtool_coalesce *ec, int q_num)
3502 {
3503         if (q_num < vsi->num_rxq && q_num < vsi->num_txq) {
3504                 if (ice_get_rc_coalesce(ec, ICE_RX_CONTAINER,
3505                                         &vsi->rx_rings[q_num]->q_vector->rx))
3506                         return -EINVAL;
3507                 if (ice_get_rc_coalesce(ec, ICE_TX_CONTAINER,
3508                                         &vsi->tx_rings[q_num]->q_vector->tx))
3509                         return -EINVAL;
3510         } else if (q_num < vsi->num_rxq) {
3511                 if (ice_get_rc_coalesce(ec, ICE_RX_CONTAINER,
3512                                         &vsi->rx_rings[q_num]->q_vector->rx))
3513                         return -EINVAL;
3514         } else if (q_num < vsi->num_txq) {
3515                 if (ice_get_rc_coalesce(ec, ICE_TX_CONTAINER,
3516                                         &vsi->tx_rings[q_num]->q_vector->tx))
3517                         return -EINVAL;
3518         } else {
3519                 return -EINVAL;
3520         }
3521
3522         return 0;
3523 }
3524
3525 /**
3526  * __ice_get_coalesce - get ITR/INTRL values for the device
3527  * @netdev: pointer to the netdev associated with this query
3528  * @ec: ethtool structure to fill with driver's coalesce settings
3529  * @q_num: queue number to get the coalesce settings for
3530  *
3531  * If the caller passes in a negative q_num then we return coalesce settings
3532  * based on queue number 0, else use the actual q_num passed in.
3533  */
3534 static int
3535 __ice_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec,
3536                    int q_num)
3537 {
3538         struct ice_netdev_priv *np = netdev_priv(netdev);
3539         struct ice_vsi *vsi = np->vsi;
3540
3541         if (q_num < 0)
3542                 q_num = 0;
3543
3544         if (ice_get_q_coalesce(vsi, ec, q_num))
3545                 return -EINVAL;
3546
3547         return 0;
3548 }
3549
3550 static int
3551 ice_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec)
3552 {
3553         return __ice_get_coalesce(netdev, ec, -1);
3554 }
3555
3556 static int
3557 ice_get_per_q_coalesce(struct net_device *netdev, u32 q_num,
3558                        struct ethtool_coalesce *ec)
3559 {
3560         return __ice_get_coalesce(netdev, ec, q_num);
3561 }
3562
3563 /**
3564  * ice_set_rc_coalesce - set ITR values for specific ring container
3565  * @c_type: container type, Rx or Tx
3566  * @ec: ethtool structure from user to update ITR settings
3567  * @rc: ring container that the ITR values will come from
3568  * @vsi: VSI associated to the ring container
3569  *
3570  * Set specific ITR values. This is done per ice_ring_container because each
3571  * q_vector can have 1 or more rings and all of said ring(s) will have the same
3572  * ITR values.
3573  *
3574  * Returns 0 on success, negative otherwise.
3575  */
3576 static int
3577 ice_set_rc_coalesce(enum ice_container_type c_type, struct ethtool_coalesce *ec,
3578                     struct ice_ring_container *rc, struct ice_vsi *vsi)
3579 {
3580         const char *c_type_str = (c_type == ICE_RX_CONTAINER) ? "rx" : "tx";
3581         u32 use_adaptive_coalesce, coalesce_usecs;
3582         struct ice_pf *pf = vsi->back;
3583         u16 itr_setting;
3584
3585         if (!rc->ring)
3586                 return -EINVAL;
3587
3588         switch (c_type) {
3589         case ICE_RX_CONTAINER:
3590                 if (ec->rx_coalesce_usecs_high > ICE_MAX_INTRL ||
3591                     (ec->rx_coalesce_usecs_high &&
3592                      ec->rx_coalesce_usecs_high < pf->hw.intrl_gran)) {
3593                         netdev_info(vsi->netdev, "Invalid value, %s-usecs-high valid values are 0 (disabled), %d-%d\n",
3594                                     c_type_str, pf->hw.intrl_gran,
3595                                     ICE_MAX_INTRL);
3596                         return -EINVAL;
3597                 }
3598                 if (ec->rx_coalesce_usecs_high != rc->ring->q_vector->intrl &&
3599                     (ec->use_adaptive_rx_coalesce || ec->use_adaptive_tx_coalesce)) {
3600                         netdev_info(vsi->netdev, "Invalid value, %s-usecs-high cannot be changed if adaptive-tx or adaptive-rx is enabled\n",
3601                                     c_type_str);
3602                         return -EINVAL;
3603                 }
3604                 if (ec->rx_coalesce_usecs_high != rc->ring->q_vector->intrl) {
3605                         rc->ring->q_vector->intrl = ec->rx_coalesce_usecs_high;
3606                         ice_write_intrl(rc->ring->q_vector,
3607                                         ec->rx_coalesce_usecs_high);
3608                 }
3609
3610                 use_adaptive_coalesce = ec->use_adaptive_rx_coalesce;
3611                 coalesce_usecs = ec->rx_coalesce_usecs;
3612
3613                 break;
3614         case ICE_TX_CONTAINER:
3615                 use_adaptive_coalesce = ec->use_adaptive_tx_coalesce;
3616                 coalesce_usecs = ec->tx_coalesce_usecs;
3617
3618                 break;
3619         default:
3620                 dev_dbg(ice_pf_to_dev(pf), "Invalid container type %d\n",
3621                         c_type);
3622                 return -EINVAL;
3623         }
3624
3625         itr_setting = rc->itr_setting;
3626         if (coalesce_usecs != itr_setting && use_adaptive_coalesce) {
3627                 netdev_info(vsi->netdev, "%s interrupt throttling cannot be changed if adaptive-%s is enabled\n",
3628                             c_type_str, c_type_str);
3629                 return -EINVAL;
3630         }
3631
3632         if (coalesce_usecs > ICE_ITR_MAX) {
3633                 netdev_info(vsi->netdev, "Invalid value, %s-usecs range is 0-%d\n",
3634                             c_type_str, ICE_ITR_MAX);
3635                 return -EINVAL;
3636         }
3637
3638         if (use_adaptive_coalesce) {
3639                 rc->itr_mode = ITR_DYNAMIC;
3640         } else {
3641                 rc->itr_mode = ITR_STATIC;
3642                 /* store user facing value how it was set */
3643                 rc->itr_setting = coalesce_usecs;
3644                 /* write the change to the register */
3645                 ice_write_itr(rc, coalesce_usecs);
3646                 /* force writes to take effect immediately, the flush shouldn't
3647                  * be done in the functions above because the intent is for
3648                  * them to do lazy writes.
3649                  */
3650                 ice_flush(&pf->hw);
3651         }
3652
3653         return 0;
3654 }
3655
3656 /**
3657  * ice_set_q_coalesce - set a queue's ITR/INTRL (coalesce) settings
3658  * @vsi: VSI associated to the queue that need updating
3659  * @ec: coalesce settings to program the device with
3660  * @q_num: update ITR/INTRL (coalesce) settings for this queue number/index
3661  *
3662  * Return 0 on success, and negative under the following conditions:
3663  * 1. Setting Tx or Rx ITR/INTRL (coalesce) settings failed.
3664  * 2. The q_num passed in is not a valid number/index for Tx and Rx rings.
3665  */
3666 static int
3667 ice_set_q_coalesce(struct ice_vsi *vsi, struct ethtool_coalesce *ec, int q_num)
3668 {
3669         if (q_num < vsi->num_rxq && q_num < vsi->num_txq) {
3670                 if (ice_set_rc_coalesce(ICE_RX_CONTAINER, ec,
3671                                         &vsi->rx_rings[q_num]->q_vector->rx,
3672                                         vsi))
3673                         return -EINVAL;
3674
3675                 if (ice_set_rc_coalesce(ICE_TX_CONTAINER, ec,
3676                                         &vsi->tx_rings[q_num]->q_vector->tx,
3677                                         vsi))
3678                         return -EINVAL;
3679         } else if (q_num < vsi->num_rxq) {
3680                 if (ice_set_rc_coalesce(ICE_RX_CONTAINER, ec,
3681                                         &vsi->rx_rings[q_num]->q_vector->rx,
3682                                         vsi))
3683                         return -EINVAL;
3684         } else if (q_num < vsi->num_txq) {
3685                 if (ice_set_rc_coalesce(ICE_TX_CONTAINER, ec,
3686                                         &vsi->tx_rings[q_num]->q_vector->tx,
3687                                         vsi))
3688                         return -EINVAL;
3689         } else {
3690                 return -EINVAL;
3691         }
3692
3693         return 0;
3694 }
3695
3696 /**
3697  * ice_print_if_odd_usecs - print message if user tries to set odd [tx|rx]-usecs
3698  * @netdev: netdev used for print
3699  * @itr_setting: previous user setting
3700  * @use_adaptive_coalesce: if adaptive coalesce is enabled or being enabled
3701  * @coalesce_usecs: requested value of [tx|rx]-usecs
3702  * @c_type_str: either "rx" or "tx" to match user set field of [tx|rx]-usecs
3703  */
3704 static void
3705 ice_print_if_odd_usecs(struct net_device *netdev, u16 itr_setting,
3706                        u32 use_adaptive_coalesce, u32 coalesce_usecs,
3707                        const char *c_type_str)
3708 {
3709         if (use_adaptive_coalesce)
3710                 return;
3711
3712         if (itr_setting != coalesce_usecs && (coalesce_usecs % 2))
3713                 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",
3714                             c_type_str, coalesce_usecs, c_type_str,
3715                             ITR_REG_ALIGN(coalesce_usecs));
3716 }
3717
3718 /**
3719  * __ice_set_coalesce - set ITR/INTRL values for the device
3720  * @netdev: pointer to the netdev associated with this query
3721  * @ec: ethtool structure to fill with driver's coalesce settings
3722  * @q_num: queue number to get the coalesce settings for
3723  *
3724  * If the caller passes in a negative q_num then we set the coalesce settings
3725  * for all Tx/Rx queues, else use the actual q_num passed in.
3726  */
3727 static int
3728 __ice_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec,
3729                    int q_num)
3730 {
3731         struct ice_netdev_priv *np = netdev_priv(netdev);
3732         struct ice_vsi *vsi = np->vsi;
3733
3734         if (q_num < 0) {
3735                 struct ice_q_vector *q_vector = vsi->q_vectors[0];
3736                 int v_idx;
3737
3738                 if (q_vector) {
3739                         ice_print_if_odd_usecs(netdev, q_vector->rx.itr_setting,
3740                                                ec->use_adaptive_rx_coalesce,
3741                                                ec->rx_coalesce_usecs, "rx");
3742
3743                         ice_print_if_odd_usecs(netdev, q_vector->tx.itr_setting,
3744                                                ec->use_adaptive_tx_coalesce,
3745                                                ec->tx_coalesce_usecs, "tx");
3746                 }
3747
3748                 ice_for_each_q_vector(vsi, v_idx) {
3749                         /* In some cases if DCB is configured the num_[rx|tx]q
3750                          * can be less than vsi->num_q_vectors. This check
3751                          * accounts for that so we don't report a false failure
3752                          */
3753                         if (v_idx >= vsi->num_rxq && v_idx >= vsi->num_txq)
3754                                 goto set_complete;
3755
3756                         if (ice_set_q_coalesce(vsi, ec, v_idx))
3757                                 return -EINVAL;
3758                 }
3759                 goto set_complete;
3760         }
3761
3762         if (ice_set_q_coalesce(vsi, ec, q_num))
3763                 return -EINVAL;
3764
3765 set_complete:
3766         return 0;
3767 }
3768
3769 static int
3770 ice_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec)
3771 {
3772         return __ice_set_coalesce(netdev, ec, -1);
3773 }
3774
3775 static int
3776 ice_set_per_q_coalesce(struct net_device *netdev, u32 q_num,
3777                        struct ethtool_coalesce *ec)
3778 {
3779         return __ice_set_coalesce(netdev, ec, q_num);
3780 }
3781
3782 #define ICE_I2C_EEPROM_DEV_ADDR         0xA0
3783 #define ICE_I2C_EEPROM_DEV_ADDR2        0xA2
3784 #define ICE_MODULE_TYPE_SFP             0x03
3785 #define ICE_MODULE_TYPE_QSFP_PLUS       0x0D
3786 #define ICE_MODULE_TYPE_QSFP28          0x11
3787 #define ICE_MODULE_SFF_ADDR_MODE        0x04
3788 #define ICE_MODULE_SFF_DIAG_CAPAB       0x40
3789 #define ICE_MODULE_REVISION_ADDR        0x01
3790 #define ICE_MODULE_SFF_8472_COMP        0x5E
3791 #define ICE_MODULE_SFF_8472_SWAP        0x5C
3792 #define ICE_MODULE_QSFP_MAX_LEN         640
3793
3794 /**
3795  * ice_get_module_info - get SFF module type and revision information
3796  * @netdev: network interface device structure
3797  * @modinfo: module EEPROM size and layout information structure
3798  */
3799 static int
3800 ice_get_module_info(struct net_device *netdev,
3801                     struct ethtool_modinfo *modinfo)
3802 {
3803         struct ice_netdev_priv *np = netdev_priv(netdev);
3804         struct ice_vsi *vsi = np->vsi;
3805         struct ice_pf *pf = vsi->back;
3806         struct ice_hw *hw = &pf->hw;
3807         enum ice_status status;
3808         u8 sff8472_comp = 0;
3809         u8 sff8472_swap = 0;
3810         u8 sff8636_rev = 0;
3811         u8 value = 0;
3812
3813         status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR, 0x00, 0x00,
3814                                    0, &value, 1, 0, NULL);
3815         if (status)
3816                 return -EIO;
3817
3818         switch (value) {
3819         case ICE_MODULE_TYPE_SFP:
3820                 status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR,
3821                                            ICE_MODULE_SFF_8472_COMP, 0x00, 0,
3822                                            &sff8472_comp, 1, 0, NULL);
3823                 if (status)
3824                         return -EIO;
3825                 status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR,
3826                                            ICE_MODULE_SFF_8472_SWAP, 0x00, 0,
3827                                            &sff8472_swap, 1, 0, NULL);
3828                 if (status)
3829                         return -EIO;
3830
3831                 if (sff8472_swap & ICE_MODULE_SFF_ADDR_MODE) {
3832                         modinfo->type = ETH_MODULE_SFF_8079;
3833                         modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
3834                 } else if (sff8472_comp &&
3835                            (sff8472_swap & ICE_MODULE_SFF_DIAG_CAPAB)) {
3836                         modinfo->type = ETH_MODULE_SFF_8472;
3837                         modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
3838                 } else {
3839                         modinfo->type = ETH_MODULE_SFF_8079;
3840                         modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
3841                 }
3842                 break;
3843         case ICE_MODULE_TYPE_QSFP_PLUS:
3844         case ICE_MODULE_TYPE_QSFP28:
3845                 status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR,
3846                                            ICE_MODULE_REVISION_ADDR, 0x00, 0,
3847                                            &sff8636_rev, 1, 0, NULL);
3848                 if (status)
3849                         return -EIO;
3850                 /* Check revision compliance */
3851                 if (sff8636_rev > 0x02) {
3852                         /* Module is SFF-8636 compliant */
3853                         modinfo->type = ETH_MODULE_SFF_8636;
3854                         modinfo->eeprom_len = ICE_MODULE_QSFP_MAX_LEN;
3855                 } else {
3856                         modinfo->type = ETH_MODULE_SFF_8436;
3857                         modinfo->eeprom_len = ICE_MODULE_QSFP_MAX_LEN;
3858                 }
3859                 break;
3860         default:
3861                 netdev_warn(netdev, "SFF Module Type not recognized.\n");
3862                 return -EINVAL;
3863         }
3864         return 0;
3865 }
3866
3867 /**
3868  * ice_get_module_eeprom - fill buffer with SFF EEPROM contents
3869  * @netdev: network interface device structure
3870  * @ee: EEPROM dump request structure
3871  * @data: buffer to be filled with EEPROM contents
3872  */
3873 static int
3874 ice_get_module_eeprom(struct net_device *netdev,
3875                       struct ethtool_eeprom *ee, u8 *data)
3876 {
3877         struct ice_netdev_priv *np = netdev_priv(netdev);
3878 #define SFF_READ_BLOCK_SIZE 8
3879         u8 value[SFF_READ_BLOCK_SIZE] = { 0 };
3880         u8 addr = ICE_I2C_EEPROM_DEV_ADDR;
3881         struct ice_vsi *vsi = np->vsi;
3882         struct ice_pf *pf = vsi->back;
3883         struct ice_hw *hw = &pf->hw;
3884         enum ice_status status;
3885         bool is_sfp = false;
3886         unsigned int i, j;
3887         u16 offset = 0;
3888         u8 page = 0;
3889
3890         if (!ee || !ee->len || !data)
3891                 return -EINVAL;
3892
3893         status = ice_aq_sff_eeprom(hw, 0, addr, offset, page, 0, value, 1, 0,
3894                                    NULL);
3895         if (status)
3896                 return -EIO;
3897
3898         if (value[0] == ICE_MODULE_TYPE_SFP)
3899                 is_sfp = true;
3900
3901         memset(data, 0, ee->len);
3902         for (i = 0; i < ee->len; i += SFF_READ_BLOCK_SIZE) {
3903                 offset = i + ee->offset;
3904                 page = 0;
3905
3906                 /* Check if we need to access the other memory page */
3907                 if (is_sfp) {
3908                         if (offset >= ETH_MODULE_SFF_8079_LEN) {
3909                                 offset -= ETH_MODULE_SFF_8079_LEN;
3910                                 addr = ICE_I2C_EEPROM_DEV_ADDR2;
3911                         }
3912                 } else {
3913                         while (offset >= ETH_MODULE_SFF_8436_LEN) {
3914                                 /* Compute memory page number and offset. */
3915                                 offset -= ETH_MODULE_SFF_8436_LEN / 2;
3916                                 page++;
3917                         }
3918                 }
3919
3920                 /* Bit 2 of EEPROM address 0x02 declares upper
3921                  * pages are disabled on QSFP modules.
3922                  * SFP modules only ever use page 0.
3923                  */
3924                 if (page == 0 || !(data[0x2] & 0x4)) {
3925                         /* If i2c bus is busy due to slow page change or
3926                          * link management access, call can fail. This is normal.
3927                          * So we retry this a few times.
3928                          */
3929                         for (j = 0; j < 4; j++) {
3930                                 status = ice_aq_sff_eeprom(hw, 0, addr, offset, page,
3931                                                            !is_sfp, value,
3932                                                            SFF_READ_BLOCK_SIZE,
3933                                                            0, NULL);
3934                                 netdev_dbg(netdev, "SFF %02X %02X %02X %X = %02X%02X%02X%02X.%02X%02X%02X%02X (%X)\n",
3935                                            addr, offset, page, is_sfp,
3936                                            value[0], value[1], value[2], value[3],
3937                                            value[4], value[5], value[6], value[7],
3938                                            status);
3939                                 if (status) {
3940                                         usleep_range(1500, 2500);
3941                                         memset(value, 0, SFF_READ_BLOCK_SIZE);
3942                                         continue;
3943                                 }
3944                                 break;
3945                         }
3946
3947                         /* Make sure we have enough room for the new block */
3948                         if ((i + SFF_READ_BLOCK_SIZE) < ee->len)
3949                                 memcpy(data + i, value, SFF_READ_BLOCK_SIZE);
3950                 }
3951         }
3952         return 0;
3953 }
3954
3955 static const struct ethtool_ops ice_ethtool_ops = {
3956         .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
3957                                      ETHTOOL_COALESCE_USE_ADAPTIVE |
3958                                      ETHTOOL_COALESCE_RX_USECS_HIGH,
3959         .get_link_ksettings     = ice_get_link_ksettings,
3960         .set_link_ksettings     = ice_set_link_ksettings,
3961         .get_drvinfo            = ice_get_drvinfo,
3962         .get_regs_len           = ice_get_regs_len,
3963         .get_regs               = ice_get_regs,
3964         .get_wol                = ice_get_wol,
3965         .set_wol                = ice_set_wol,
3966         .get_msglevel           = ice_get_msglevel,
3967         .set_msglevel           = ice_set_msglevel,
3968         .self_test              = ice_self_test,
3969         .get_link               = ethtool_op_get_link,
3970         .get_eeprom_len         = ice_get_eeprom_len,
3971         .get_eeprom             = ice_get_eeprom,
3972         .get_coalesce           = ice_get_coalesce,
3973         .set_coalesce           = ice_set_coalesce,
3974         .get_strings            = ice_get_strings,
3975         .set_phys_id            = ice_set_phys_id,
3976         .get_ethtool_stats      = ice_get_ethtool_stats,
3977         .get_priv_flags         = ice_get_priv_flags,
3978         .set_priv_flags         = ice_set_priv_flags,
3979         .get_sset_count         = ice_get_sset_count,
3980         .get_rxnfc              = ice_get_rxnfc,
3981         .set_rxnfc              = ice_set_rxnfc,
3982         .get_ringparam          = ice_get_ringparam,
3983         .set_ringparam          = ice_set_ringparam,
3984         .nway_reset             = ice_nway_reset,
3985         .get_pauseparam         = ice_get_pauseparam,
3986         .set_pauseparam         = ice_set_pauseparam,
3987         .get_rxfh_key_size      = ice_get_rxfh_key_size,
3988         .get_rxfh_indir_size    = ice_get_rxfh_indir_size,
3989         .get_rxfh               = ice_get_rxfh,
3990         .set_rxfh               = ice_set_rxfh,
3991         .get_channels           = ice_get_channels,
3992         .set_channels           = ice_set_channels,
3993         .get_ts_info            = ethtool_op_get_ts_info,
3994         .get_per_queue_coalesce = ice_get_per_q_coalesce,
3995         .set_per_queue_coalesce = ice_set_per_q_coalesce,
3996         .get_fecparam           = ice_get_fecparam,
3997         .set_fecparam           = ice_set_fecparam,
3998         .get_module_info        = ice_get_module_info,
3999         .get_module_eeprom      = ice_get_module_eeprom,
4000 };
4001
4002 static const struct ethtool_ops ice_ethtool_safe_mode_ops = {
4003         .get_link_ksettings     = ice_get_link_ksettings,
4004         .set_link_ksettings     = ice_set_link_ksettings,
4005         .get_drvinfo            = ice_get_drvinfo,
4006         .get_regs_len           = ice_get_regs_len,
4007         .get_regs               = ice_get_regs,
4008         .get_wol                = ice_get_wol,
4009         .set_wol                = ice_set_wol,
4010         .get_msglevel           = ice_get_msglevel,
4011         .set_msglevel           = ice_set_msglevel,
4012         .get_link               = ethtool_op_get_link,
4013         .get_eeprom_len         = ice_get_eeprom_len,
4014         .get_eeprom             = ice_get_eeprom,
4015         .get_strings            = ice_get_strings,
4016         .get_ethtool_stats      = ice_get_ethtool_stats,
4017         .get_sset_count         = ice_get_sset_count,
4018         .get_ringparam          = ice_get_ringparam,
4019         .set_ringparam          = ice_set_ringparam,
4020         .nway_reset             = ice_nway_reset,
4021         .get_channels           = ice_get_channels,
4022 };
4023
4024 /**
4025  * ice_set_ethtool_safe_mode_ops - setup safe mode ethtool ops
4026  * @netdev: network interface device structure
4027  */
4028 void ice_set_ethtool_safe_mode_ops(struct net_device *netdev)
4029 {
4030         netdev->ethtool_ops = &ice_ethtool_safe_mode_ops;
4031 }
4032
4033 /**
4034  * ice_set_ethtool_ops - setup netdev ethtool ops
4035  * @netdev: network interface device structure
4036  *
4037  * setup netdev ethtool ops with ice specific ops
4038  */
4039 void ice_set_ethtool_ops(struct net_device *netdev)
4040 {
4041         netdev->ethtool_ops = &ice_ethtool_ops;
4042 }