linux/drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c
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   1/*******************************************************************************
   2
   3  Intel 10 Gigabit PCI Express Linux driver
   4  Copyright(c) 1999 - 2016 Intel Corporation.
   5
   6  This program is free software; you can redistribute it and/or modify it
   7  under the terms and conditions of the GNU General Public License,
   8  version 2, as published by the Free Software Foundation.
   9
  10  This program is distributed in the hope it will be useful, but WITHOUT
  11  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13  more details.
  14
  15  You should have received a copy of the GNU General Public License along with
  16  this program; if not, write to the Free Software Foundation, Inc.,
  17  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  18
  19  The full GNU General Public License is included in this distribution in
  20  the file called "COPYING".
  21
  22  Contact Information:
  23  Linux NICS <linux.nics@intel.com>
  24  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  25  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  26
  27*******************************************************************************/
  28
  29#include <linux/pci.h>
  30#include <linux/delay.h>
  31#include <linux/sched.h>
  32
  33#include "ixgbe.h"
  34#include "ixgbe_phy.h"
  35
  36#define IXGBE_82598_MAX_TX_QUEUES 32
  37#define IXGBE_82598_MAX_RX_QUEUES 64
  38#define IXGBE_82598_RAR_ENTRIES   16
  39#define IXGBE_82598_MC_TBL_SIZE  128
  40#define IXGBE_82598_VFT_TBL_SIZE 128
  41#define IXGBE_82598_RX_PB_SIZE   512
  42
  43static s32 ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw,
  44                                         ixgbe_link_speed speed,
  45                                         bool autoneg_wait_to_complete);
  46static s32 ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
  47                                       u8 *eeprom_data);
  48
  49/**
  50 *  ixgbe_set_pcie_completion_timeout - set pci-e completion timeout
  51 *  @hw: pointer to the HW structure
  52 *
  53 *  The defaults for 82598 should be in the range of 50us to 50ms,
  54 *  however the hardware default for these parts is 500us to 1ms which is less
  55 *  than the 10ms recommended by the pci-e spec.  To address this we need to
  56 *  increase the value to either 10ms to 250ms for capability version 1 config,
  57 *  or 16ms to 55ms for version 2.
  58 **/
  59static void ixgbe_set_pcie_completion_timeout(struct ixgbe_hw *hw)
  60{
  61        u32 gcr = IXGBE_READ_REG(hw, IXGBE_GCR);
  62        u16 pcie_devctl2;
  63
  64        if (ixgbe_removed(hw->hw_addr))
  65                return;
  66
  67        /* only take action if timeout value is defaulted to 0 */
  68        if (gcr & IXGBE_GCR_CMPL_TMOUT_MASK)
  69                goto out;
  70
  71        /*
  72         * if capababilities version is type 1 we can write the
  73         * timeout of 10ms to 250ms through the GCR register
  74         */
  75        if (!(gcr & IXGBE_GCR_CAP_VER2)) {
  76                gcr |= IXGBE_GCR_CMPL_TMOUT_10ms;
  77                goto out;
  78        }
  79
  80        /*
  81         * for version 2 capabilities we need to write the config space
  82         * directly in order to set the completion timeout value for
  83         * 16ms to 55ms
  84         */
  85        pcie_devctl2 = ixgbe_read_pci_cfg_word(hw, IXGBE_PCI_DEVICE_CONTROL2);
  86        pcie_devctl2 |= IXGBE_PCI_DEVICE_CONTROL2_16ms;
  87        ixgbe_write_pci_cfg_word(hw, IXGBE_PCI_DEVICE_CONTROL2, pcie_devctl2);
  88out:
  89        /* disable completion timeout resend */
  90        gcr &= ~IXGBE_GCR_CMPL_TMOUT_RESEND;
  91        IXGBE_WRITE_REG(hw, IXGBE_GCR, gcr);
  92}
  93
  94static s32 ixgbe_get_invariants_82598(struct ixgbe_hw *hw)
  95{
  96        struct ixgbe_mac_info *mac = &hw->mac;
  97
  98        /* Call PHY identify routine to get the phy type */
  99        ixgbe_identify_phy_generic(hw);
 100
 101        mac->mcft_size = IXGBE_82598_MC_TBL_SIZE;
 102        mac->vft_size = IXGBE_82598_VFT_TBL_SIZE;
 103        mac->num_rar_entries = IXGBE_82598_RAR_ENTRIES;
 104        mac->rx_pb_size = IXGBE_82598_RX_PB_SIZE;
 105        mac->max_rx_queues = IXGBE_82598_MAX_RX_QUEUES;
 106        mac->max_tx_queues = IXGBE_82598_MAX_TX_QUEUES;
 107        mac->max_msix_vectors = ixgbe_get_pcie_msix_count_generic(hw);
 108
 109        return 0;
 110}
 111
 112/**
 113 *  ixgbe_init_phy_ops_82598 - PHY/SFP specific init
 114 *  @hw: pointer to hardware structure
 115 *
 116 *  Initialize any function pointers that were not able to be
 117 *  set during get_invariants because the PHY/SFP type was
 118 *  not known.  Perform the SFP init if necessary.
 119 *
 120 **/
 121static s32 ixgbe_init_phy_ops_82598(struct ixgbe_hw *hw)
 122{
 123        struct ixgbe_mac_info *mac = &hw->mac;
 124        struct ixgbe_phy_info *phy = &hw->phy;
 125        s32 ret_val;
 126        u16 list_offset, data_offset;
 127
 128        /* Identify the PHY */
 129        phy->ops.identify(hw);
 130
 131        /* Overwrite the link function pointers if copper PHY */
 132        if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper) {
 133                mac->ops.setup_link = &ixgbe_setup_copper_link_82598;
 134                mac->ops.get_link_capabilities =
 135                        &ixgbe_get_copper_link_capabilities_generic;
 136        }
 137
 138        switch (hw->phy.type) {
 139        case ixgbe_phy_tn:
 140                phy->ops.setup_link = &ixgbe_setup_phy_link_tnx;
 141                phy->ops.check_link = &ixgbe_check_phy_link_tnx;
 142                break;
 143        case ixgbe_phy_nl:
 144                phy->ops.reset = &ixgbe_reset_phy_nl;
 145
 146                /* Call SFP+ identify routine to get the SFP+ module type */
 147                ret_val = phy->ops.identify_sfp(hw);
 148                if (ret_val)
 149                        return ret_val;
 150                if (hw->phy.sfp_type == ixgbe_sfp_type_unknown)
 151                        return IXGBE_ERR_SFP_NOT_SUPPORTED;
 152
 153                /* Check to see if SFP+ module is supported */
 154                ret_val = ixgbe_get_sfp_init_sequence_offsets(hw,
 155                                                            &list_offset,
 156                                                            &data_offset);
 157                if (ret_val)
 158                        return IXGBE_ERR_SFP_NOT_SUPPORTED;
 159                break;
 160        default:
 161                break;
 162        }
 163
 164        return 0;
 165}
 166
 167/**
 168 *  ixgbe_start_hw_82598 - Prepare hardware for Tx/Rx
 169 *  @hw: pointer to hardware structure
 170 *
 171 *  Starts the hardware using the generic start_hw function.
 172 *  Disables relaxed ordering for archs other than SPARC
 173 *  Then set pcie completion timeout
 174 *
 175 **/
 176static s32 ixgbe_start_hw_82598(struct ixgbe_hw *hw)
 177{
 178#ifndef CONFIG_SPARC
 179        u32 regval;
 180        u32 i;
 181#endif
 182        s32 ret_val;
 183
 184        ret_val = ixgbe_start_hw_generic(hw);
 185
 186#ifndef CONFIG_SPARC
 187        /* Disable relaxed ordering */
 188        for (i = 0; ((i < hw->mac.max_tx_queues) &&
 189             (i < IXGBE_DCA_MAX_QUEUES_82598)); i++) {
 190                regval = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL(i));
 191                regval &= ~IXGBE_DCA_TXCTRL_DESC_WRO_EN;
 192                IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL(i), regval);
 193        }
 194
 195        for (i = 0; ((i < hw->mac.max_rx_queues) &&
 196             (i < IXGBE_DCA_MAX_QUEUES_82598)); i++) {
 197                regval = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i));
 198                regval &= ~(IXGBE_DCA_RXCTRL_DATA_WRO_EN |
 199                            IXGBE_DCA_RXCTRL_HEAD_WRO_EN);
 200                IXGBE_WRITE_REG(hw, IXGBE_DCA_RXCTRL(i), regval);
 201        }
 202#endif
 203        if (ret_val)
 204                return ret_val;
 205
 206        /* set the completion timeout for interface */
 207        ixgbe_set_pcie_completion_timeout(hw);
 208
 209        return 0;
 210}
 211
 212/**
 213 *  ixgbe_get_link_capabilities_82598 - Determines link capabilities
 214 *  @hw: pointer to hardware structure
 215 *  @speed: pointer to link speed
 216 *  @autoneg: boolean auto-negotiation value
 217 *
 218 *  Determines the link capabilities by reading the AUTOC register.
 219 **/
 220static s32 ixgbe_get_link_capabilities_82598(struct ixgbe_hw *hw,
 221                                             ixgbe_link_speed *speed,
 222                                             bool *autoneg)
 223{
 224        u32 autoc = 0;
 225
 226        /*
 227         * Determine link capabilities based on the stored value of AUTOC,
 228         * which represents EEPROM defaults.  If AUTOC value has not been
 229         * stored, use the current register value.
 230         */
 231        if (hw->mac.orig_link_settings_stored)
 232                autoc = hw->mac.orig_autoc;
 233        else
 234                autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
 235
 236        switch (autoc & IXGBE_AUTOC_LMS_MASK) {
 237        case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
 238                *speed = IXGBE_LINK_SPEED_1GB_FULL;
 239                *autoneg = false;
 240                break;
 241
 242        case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
 243                *speed = IXGBE_LINK_SPEED_10GB_FULL;
 244                *autoneg = false;
 245                break;
 246
 247        case IXGBE_AUTOC_LMS_1G_AN:
 248                *speed = IXGBE_LINK_SPEED_1GB_FULL;
 249                *autoneg = true;
 250                break;
 251
 252        case IXGBE_AUTOC_LMS_KX4_AN:
 253        case IXGBE_AUTOC_LMS_KX4_AN_1G_AN:
 254                *speed = IXGBE_LINK_SPEED_UNKNOWN;
 255                if (autoc & IXGBE_AUTOC_KX4_SUPP)
 256                        *speed |= IXGBE_LINK_SPEED_10GB_FULL;
 257                if (autoc & IXGBE_AUTOC_KX_SUPP)
 258                        *speed |= IXGBE_LINK_SPEED_1GB_FULL;
 259                *autoneg = true;
 260                break;
 261
 262        default:
 263                return IXGBE_ERR_LINK_SETUP;
 264        }
 265
 266        return 0;
 267}
 268
 269/**
 270 *  ixgbe_get_media_type_82598 - Determines media type
 271 *  @hw: pointer to hardware structure
 272 *
 273 *  Returns the media type (fiber, copper, backplane)
 274 **/
 275static enum ixgbe_media_type ixgbe_get_media_type_82598(struct ixgbe_hw *hw)
 276{
 277        /* Detect if there is a copper PHY attached. */
 278        switch (hw->phy.type) {
 279        case ixgbe_phy_cu_unknown:
 280        case ixgbe_phy_tn:
 281                return ixgbe_media_type_copper;
 282
 283        default:
 284                break;
 285        }
 286
 287        /* Media type for I82598 is based on device ID */
 288        switch (hw->device_id) {
 289        case IXGBE_DEV_ID_82598:
 290        case IXGBE_DEV_ID_82598_BX:
 291                /* Default device ID is mezzanine card KX/KX4 */
 292                return ixgbe_media_type_backplane;
 293
 294        case IXGBE_DEV_ID_82598AF_DUAL_PORT:
 295        case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
 296        case IXGBE_DEV_ID_82598_DA_DUAL_PORT:
 297        case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM:
 298        case IXGBE_DEV_ID_82598EB_XF_LR:
 299        case IXGBE_DEV_ID_82598EB_SFP_LOM:
 300                return ixgbe_media_type_fiber;
 301
 302        case IXGBE_DEV_ID_82598EB_CX4:
 303        case IXGBE_DEV_ID_82598_CX4_DUAL_PORT:
 304                return ixgbe_media_type_cx4;
 305
 306        case IXGBE_DEV_ID_82598AT:
 307        case IXGBE_DEV_ID_82598AT2:
 308                return ixgbe_media_type_copper;
 309
 310        default:
 311                return ixgbe_media_type_unknown;
 312        }
 313}
 314
 315/**
 316 *  ixgbe_fc_enable_82598 - Enable flow control
 317 *  @hw: pointer to hardware structure
 318 *
 319 *  Enable flow control according to the current settings.
 320 **/
 321static s32 ixgbe_fc_enable_82598(struct ixgbe_hw *hw)
 322{
 323        u32 fctrl_reg;
 324        u32 rmcs_reg;
 325        u32 reg;
 326        u32 fcrtl, fcrth;
 327        u32 link_speed = 0;
 328        int i;
 329        bool link_up;
 330
 331        /* Validate the water mark configuration */
 332        if (!hw->fc.pause_time)
 333                return IXGBE_ERR_INVALID_LINK_SETTINGS;
 334
 335        /* Low water mark of zero causes XOFF floods */
 336        for (i = 0; i < MAX_TRAFFIC_CLASS; i++) {
 337                if ((hw->fc.current_mode & ixgbe_fc_tx_pause) &&
 338                    hw->fc.high_water[i]) {
 339                        if (!hw->fc.low_water[i] ||
 340                            hw->fc.low_water[i] >= hw->fc.high_water[i]) {
 341                                hw_dbg(hw, "Invalid water mark configuration\n");
 342                                return IXGBE_ERR_INVALID_LINK_SETTINGS;
 343                        }
 344                }
 345        }
 346
 347        /*
 348         * On 82598 having Rx FC on causes resets while doing 1G
 349         * so if it's on turn it off once we know link_speed. For
 350         * more details see 82598 Specification update.
 351         */
 352        hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
 353        if (link_up && link_speed == IXGBE_LINK_SPEED_1GB_FULL) {
 354                switch (hw->fc.requested_mode) {
 355                case ixgbe_fc_full:
 356                        hw->fc.requested_mode = ixgbe_fc_tx_pause;
 357                        break;
 358                case ixgbe_fc_rx_pause:
 359                        hw->fc.requested_mode = ixgbe_fc_none;
 360                        break;
 361                default:
 362                        /* no change */
 363                        break;
 364                }
 365        }
 366
 367        /* Negotiate the fc mode to use */
 368        hw->mac.ops.fc_autoneg(hw);
 369
 370        /* Disable any previous flow control settings */
 371        fctrl_reg = IXGBE_READ_REG(hw, IXGBE_FCTRL);
 372        fctrl_reg &= ~(IXGBE_FCTRL_RFCE | IXGBE_FCTRL_RPFCE);
 373
 374        rmcs_reg = IXGBE_READ_REG(hw, IXGBE_RMCS);
 375        rmcs_reg &= ~(IXGBE_RMCS_TFCE_PRIORITY | IXGBE_RMCS_TFCE_802_3X);
 376
 377        /*
 378         * The possible values of fc.current_mode are:
 379         * 0: Flow control is completely disabled
 380         * 1: Rx flow control is enabled (we can receive pause frames,
 381         *    but not send pause frames).
 382         * 2: Tx flow control is enabled (we can send pause frames but
 383         *     we do not support receiving pause frames).
 384         * 3: Both Rx and Tx flow control (symmetric) are enabled.
 385         * other: Invalid.
 386         */
 387        switch (hw->fc.current_mode) {
 388        case ixgbe_fc_none:
 389                /*
 390                 * Flow control is disabled by software override or autoneg.
 391                 * The code below will actually disable it in the HW.
 392                 */
 393                break;
 394        case ixgbe_fc_rx_pause:
 395                /*
 396                 * Rx Flow control is enabled and Tx Flow control is
 397                 * disabled by software override. Since there really
 398                 * isn't a way to advertise that we are capable of RX
 399                 * Pause ONLY, we will advertise that we support both
 400                 * symmetric and asymmetric Rx PAUSE.  Later, we will
 401                 * disable the adapter's ability to send PAUSE frames.
 402                 */
 403                fctrl_reg |= IXGBE_FCTRL_RFCE;
 404                break;
 405        case ixgbe_fc_tx_pause:
 406                /*
 407                 * Tx Flow control is enabled, and Rx Flow control is
 408                 * disabled by software override.
 409                 */
 410                rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
 411                break;
 412        case ixgbe_fc_full:
 413                /* Flow control (both Rx and Tx) is enabled by SW override. */
 414                fctrl_reg |= IXGBE_FCTRL_RFCE;
 415                rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
 416                break;
 417        default:
 418                hw_dbg(hw, "Flow control param set incorrectly\n");
 419                return IXGBE_ERR_CONFIG;
 420        }
 421
 422        /* Set 802.3x based flow control settings. */
 423        fctrl_reg |= IXGBE_FCTRL_DPF;
 424        IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl_reg);
 425        IXGBE_WRITE_REG(hw, IXGBE_RMCS, rmcs_reg);
 426
 427        /* Set up and enable Rx high/low water mark thresholds, enable XON. */
 428        for (i = 0; i < MAX_TRAFFIC_CLASS; i++) {
 429                if ((hw->fc.current_mode & ixgbe_fc_tx_pause) &&
 430                    hw->fc.high_water[i]) {
 431                        fcrtl = (hw->fc.low_water[i] << 10) | IXGBE_FCRTL_XONE;
 432                        fcrth = (hw->fc.high_water[i] << 10) | IXGBE_FCRTH_FCEN;
 433                        IXGBE_WRITE_REG(hw, IXGBE_FCRTL(i), fcrtl);
 434                        IXGBE_WRITE_REG(hw, IXGBE_FCRTH(i), fcrth);
 435                } else {
 436                        IXGBE_WRITE_REG(hw, IXGBE_FCRTL(i), 0);
 437                        IXGBE_WRITE_REG(hw, IXGBE_FCRTH(i), 0);
 438                }
 439
 440        }
 441
 442        /* Configure pause time (2 TCs per register) */
 443        reg = hw->fc.pause_time * 0x00010001;
 444        for (i = 0; i < (MAX_TRAFFIC_CLASS / 2); i++)
 445                IXGBE_WRITE_REG(hw, IXGBE_FCTTV(i), reg);
 446
 447        /* Configure flow control refresh threshold value */
 448        IXGBE_WRITE_REG(hw, IXGBE_FCRTV, hw->fc.pause_time / 2);
 449
 450        return 0;
 451}
 452
 453/**
 454 *  ixgbe_start_mac_link_82598 - Configures MAC link settings
 455 *  @hw: pointer to hardware structure
 456 *
 457 *  Configures link settings based on values in the ixgbe_hw struct.
 458 *  Restarts the link.  Performs autonegotiation if needed.
 459 **/
 460static s32 ixgbe_start_mac_link_82598(struct ixgbe_hw *hw,
 461                                      bool autoneg_wait_to_complete)
 462{
 463        u32 autoc_reg;
 464        u32 links_reg;
 465        u32 i;
 466        s32 status = 0;
 467
 468        /* Restart link */
 469        autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
 470        autoc_reg |= IXGBE_AUTOC_AN_RESTART;
 471        IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
 472
 473        /* Only poll for autoneg to complete if specified to do so */
 474        if (autoneg_wait_to_complete) {
 475                if ((autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
 476                     IXGBE_AUTOC_LMS_KX4_AN ||
 477                    (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
 478                     IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
 479                        links_reg = 0; /* Just in case Autoneg time = 0 */
 480                        for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
 481                                links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
 482                                if (links_reg & IXGBE_LINKS_KX_AN_COMP)
 483                                        break;
 484                                msleep(100);
 485                        }
 486                        if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
 487                                status = IXGBE_ERR_AUTONEG_NOT_COMPLETE;
 488                                hw_dbg(hw, "Autonegotiation did not complete.\n");
 489                        }
 490                }
 491        }
 492
 493        /* Add delay to filter out noises during initial link setup */
 494        msleep(50);
 495
 496        return status;
 497}
 498
 499/**
 500 *  ixgbe_validate_link_ready - Function looks for phy link
 501 *  @hw: pointer to hardware structure
 502 *
 503 *  Function indicates success when phy link is available. If phy is not ready
 504 *  within 5 seconds of MAC indicating link, the function returns error.
 505 **/
 506static s32 ixgbe_validate_link_ready(struct ixgbe_hw *hw)
 507{
 508        u32 timeout;
 509        u16 an_reg;
 510
 511        if (hw->device_id != IXGBE_DEV_ID_82598AT2)
 512                return 0;
 513
 514        for (timeout = 0;
 515             timeout < IXGBE_VALIDATE_LINK_READY_TIMEOUT; timeout++) {
 516                hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN, &an_reg);
 517
 518                if ((an_reg & MDIO_AN_STAT1_COMPLETE) &&
 519                    (an_reg & MDIO_STAT1_LSTATUS))
 520                        break;
 521
 522                msleep(100);
 523        }
 524
 525        if (timeout == IXGBE_VALIDATE_LINK_READY_TIMEOUT) {
 526                hw_dbg(hw, "Link was indicated but link is down\n");
 527                return IXGBE_ERR_LINK_SETUP;
 528        }
 529
 530        return 0;
 531}
 532
 533/**
 534 *  ixgbe_check_mac_link_82598 - Get link/speed status
 535 *  @hw: pointer to hardware structure
 536 *  @speed: pointer to link speed
 537 *  @link_up: true is link is up, false otherwise
 538 *  @link_up_wait_to_complete: bool used to wait for link up or not
 539 *
 540 *  Reads the links register to determine if link is up and the current speed
 541 **/
 542static s32 ixgbe_check_mac_link_82598(struct ixgbe_hw *hw,
 543                                      ixgbe_link_speed *speed, bool *link_up,
 544                                      bool link_up_wait_to_complete)
 545{
 546        u32 links_reg;
 547        u32 i;
 548        u16 link_reg, adapt_comp_reg;
 549
 550        /*
 551         * SERDES PHY requires us to read link status from register 0xC79F.
 552         * Bit 0 set indicates link is up/ready; clear indicates link down.
 553         * 0xC00C is read to check that the XAUI lanes are active.  Bit 0
 554         * clear indicates active; set indicates inactive.
 555         */
 556        if (hw->phy.type == ixgbe_phy_nl) {
 557                hw->phy.ops.read_reg(hw, 0xC79F, MDIO_MMD_PMAPMD, &link_reg);
 558                hw->phy.ops.read_reg(hw, 0xC79F, MDIO_MMD_PMAPMD, &link_reg);
 559                hw->phy.ops.read_reg(hw, 0xC00C, MDIO_MMD_PMAPMD,
 560                                     &adapt_comp_reg);
 561                if (link_up_wait_to_complete) {
 562                        for (i = 0; i < IXGBE_LINK_UP_TIME; i++) {
 563                                if ((link_reg & 1) &&
 564                                    ((adapt_comp_reg & 1) == 0)) {
 565                                        *link_up = true;
 566                                        break;
 567                                } else {
 568                                        *link_up = false;
 569                                }
 570                                msleep(100);
 571                                hw->phy.ops.read_reg(hw, 0xC79F,
 572                                                     MDIO_MMD_PMAPMD,
 573                                                     &link_reg);
 574                                hw->phy.ops.read_reg(hw, 0xC00C,
 575                                                     MDIO_MMD_PMAPMD,
 576                                                     &adapt_comp_reg);
 577                        }
 578                } else {
 579                        if ((link_reg & 1) && ((adapt_comp_reg & 1) == 0))
 580                                *link_up = true;
 581                        else
 582                                *link_up = false;
 583                }
 584
 585                if (!*link_up)
 586                        return 0;
 587        }
 588
 589        links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
 590        if (link_up_wait_to_complete) {
 591                for (i = 0; i < IXGBE_LINK_UP_TIME; i++) {
 592                        if (links_reg & IXGBE_LINKS_UP) {
 593                                *link_up = true;
 594                                break;
 595                        } else {
 596                                *link_up = false;
 597                        }
 598                        msleep(100);
 599                        links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
 600                }
 601        } else {
 602                if (links_reg & IXGBE_LINKS_UP)
 603                        *link_up = true;
 604                else
 605                        *link_up = false;
 606        }
 607
 608        if (links_reg & IXGBE_LINKS_SPEED)
 609                *speed = IXGBE_LINK_SPEED_10GB_FULL;
 610        else
 611                *speed = IXGBE_LINK_SPEED_1GB_FULL;
 612
 613        if ((hw->device_id == IXGBE_DEV_ID_82598AT2) && *link_up &&
 614            (ixgbe_validate_link_ready(hw) != 0))
 615                *link_up = false;
 616
 617        return 0;
 618}
 619
 620/**
 621 *  ixgbe_setup_mac_link_82598 - Set MAC link speed
 622 *  @hw: pointer to hardware structure
 623 *  @speed: new link speed
 624 *  @autoneg_wait_to_complete: true when waiting for completion is needed
 625 *
 626 *  Set the link speed in the AUTOC register and restarts link.
 627 **/
 628static s32 ixgbe_setup_mac_link_82598(struct ixgbe_hw *hw,
 629                                      ixgbe_link_speed speed,
 630                                      bool autoneg_wait_to_complete)
 631{
 632        bool             autoneg           = false;
 633        ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN;
 634        u32              curr_autoc        = IXGBE_READ_REG(hw, IXGBE_AUTOC);
 635        u32              autoc             = curr_autoc;
 636        u32              link_mode         = autoc & IXGBE_AUTOC_LMS_MASK;
 637
 638        /* Check to see if speed passed in is supported. */
 639        ixgbe_get_link_capabilities_82598(hw, &link_capabilities, &autoneg);
 640        speed &= link_capabilities;
 641
 642        if (speed == IXGBE_LINK_SPEED_UNKNOWN)
 643                return IXGBE_ERR_LINK_SETUP;
 644
 645        /* Set KX4/KX support according to speed requested */
 646        else if (link_mode == IXGBE_AUTOC_LMS_KX4_AN ||
 647                 link_mode == IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
 648                autoc &= ~IXGBE_AUTOC_KX4_KX_SUPP_MASK;
 649                if (speed & IXGBE_LINK_SPEED_10GB_FULL)
 650                        autoc |= IXGBE_AUTOC_KX4_SUPP;
 651                if (speed & IXGBE_LINK_SPEED_1GB_FULL)
 652                        autoc |= IXGBE_AUTOC_KX_SUPP;
 653                if (autoc != curr_autoc)
 654                        IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc);
 655        }
 656
 657        /* Setup and restart the link based on the new values in
 658         * ixgbe_hw This will write the AUTOC register based on the new
 659         * stored values
 660         */
 661        return ixgbe_start_mac_link_82598(hw, autoneg_wait_to_complete);
 662}
 663
 664
 665/**
 666 *  ixgbe_setup_copper_link_82598 - Set the PHY autoneg advertised field
 667 *  @hw: pointer to hardware structure
 668 *  @speed: new link speed
 669 *  @autoneg_wait_to_complete: true if waiting is needed to complete
 670 *
 671 *  Sets the link speed in the AUTOC register in the MAC and restarts link.
 672 **/
 673static s32 ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw,
 674                                               ixgbe_link_speed speed,
 675                                               bool autoneg_wait_to_complete)
 676{
 677        s32 status;
 678
 679        /* Setup the PHY according to input speed */
 680        status = hw->phy.ops.setup_link_speed(hw, speed,
 681                                              autoneg_wait_to_complete);
 682        /* Set up MAC */
 683        ixgbe_start_mac_link_82598(hw, autoneg_wait_to_complete);
 684
 685        return status;
 686}
 687
 688/**
 689 *  ixgbe_reset_hw_82598 - Performs hardware reset
 690 *  @hw: pointer to hardware structure
 691 *
 692 *  Resets the hardware by resetting the transmit and receive units, masks and
 693 *  clears all interrupts, performing a PHY reset, and performing a link (MAC)
 694 *  reset.
 695 **/
 696static s32 ixgbe_reset_hw_82598(struct ixgbe_hw *hw)
 697{
 698        s32 status;
 699        s32 phy_status = 0;
 700        u32 ctrl;
 701        u32 gheccr;
 702        u32 i;
 703        u32 autoc;
 704        u8  analog_val;
 705
 706        /* Call adapter stop to disable tx/rx and clear interrupts */
 707        status = hw->mac.ops.stop_adapter(hw);
 708        if (status)
 709                return status;
 710
 711        /*
 712         * Power up the Atlas Tx lanes if they are currently powered down.
 713         * Atlas Tx lanes are powered down for MAC loopback tests, but
 714         * they are not automatically restored on reset.
 715         */
 716        hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK, &analog_val);
 717        if (analog_val & IXGBE_ATLAS_PDN_TX_REG_EN) {
 718                /* Enable Tx Atlas so packets can be transmitted again */
 719                hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
 720                                             &analog_val);
 721                analog_val &= ~IXGBE_ATLAS_PDN_TX_REG_EN;
 722                hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
 723                                              analog_val);
 724
 725                hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
 726                                             &analog_val);
 727                analog_val &= ~IXGBE_ATLAS_PDN_TX_10G_QL_ALL;
 728                hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
 729                                              analog_val);
 730
 731                hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
 732                                             &analog_val);
 733                analog_val &= ~IXGBE_ATLAS_PDN_TX_1G_QL_ALL;
 734                hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
 735                                              analog_val);
 736
 737                hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
 738                                             &analog_val);
 739                analog_val &= ~IXGBE_ATLAS_PDN_TX_AN_QL_ALL;
 740                hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
 741                                              analog_val);
 742        }
 743
 744        /* Reset PHY */
 745        if (hw->phy.reset_disable == false) {
 746                /* PHY ops must be identified and initialized prior to reset */
 747
 748                /* Init PHY and function pointers, perform SFP setup */
 749                phy_status = hw->phy.ops.init(hw);
 750                if (phy_status == IXGBE_ERR_SFP_NOT_SUPPORTED)
 751                        return phy_status;
 752                if (phy_status == IXGBE_ERR_SFP_NOT_PRESENT)
 753                        goto mac_reset_top;
 754
 755                hw->phy.ops.reset(hw);
 756        }
 757
 758mac_reset_top:
 759        /*
 760         * Issue global reset to the MAC.  This needs to be a SW reset.
 761         * If link reset is used, it might reset the MAC when mng is using it
 762         */
 763        ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL) | IXGBE_CTRL_RST;
 764        IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
 765        IXGBE_WRITE_FLUSH(hw);
 766        usleep_range(1000, 1200);
 767
 768        /* Poll for reset bit to self-clear indicating reset is complete */
 769        for (i = 0; i < 10; i++) {
 770                ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
 771                if (!(ctrl & IXGBE_CTRL_RST))
 772                        break;
 773                udelay(1);
 774        }
 775        if (ctrl & IXGBE_CTRL_RST) {
 776                status = IXGBE_ERR_RESET_FAILED;
 777                hw_dbg(hw, "Reset polling failed to complete.\n");
 778        }
 779
 780        msleep(50);
 781
 782        /*
 783         * Double resets are required for recovery from certain error
 784         * conditions.  Between resets, it is necessary to stall to allow time
 785         * for any pending HW events to complete.
 786         */
 787        if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
 788                hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
 789                goto mac_reset_top;
 790        }
 791
 792        gheccr = IXGBE_READ_REG(hw, IXGBE_GHECCR);
 793        gheccr &= ~(BIT(21) | BIT(18) | BIT(9) | BIT(6));
 794        IXGBE_WRITE_REG(hw, IXGBE_GHECCR, gheccr);
 795
 796        /*
 797         * Store the original AUTOC value if it has not been
 798         * stored off yet.  Otherwise restore the stored original
 799         * AUTOC value since the reset operation sets back to deaults.
 800         */
 801        autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
 802        if (hw->mac.orig_link_settings_stored == false) {
 803                hw->mac.orig_autoc = autoc;
 804                hw->mac.orig_link_settings_stored = true;
 805        } else if (autoc != hw->mac.orig_autoc) {
 806                IXGBE_WRITE_REG(hw, IXGBE_AUTOC, hw->mac.orig_autoc);
 807        }
 808
 809        /* Store the permanent mac address */
 810        hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
 811
 812        /*
 813         * Store MAC address from RAR0, clear receive address registers, and
 814         * clear the multicast table
 815         */
 816        hw->mac.ops.init_rx_addrs(hw);
 817
 818        if (phy_status)
 819                status = phy_status;
 820
 821        return status;
 822}
 823
 824/**
 825 *  ixgbe_set_vmdq_82598 - Associate a VMDq set index with a rx address
 826 *  @hw: pointer to hardware struct
 827 *  @rar: receive address register index to associate with a VMDq index
 828 *  @vmdq: VMDq set index
 829 **/
 830static s32 ixgbe_set_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
 831{
 832        u32 rar_high;
 833        u32 rar_entries = hw->mac.num_rar_entries;
 834
 835        /* Make sure we are using a valid rar index range */
 836        if (rar >= rar_entries) {
 837                hw_dbg(hw, "RAR index %d is out of range.\n", rar);
 838                return IXGBE_ERR_INVALID_ARGUMENT;
 839        }
 840
 841        rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
 842        rar_high &= ~IXGBE_RAH_VIND_MASK;
 843        rar_high |= ((vmdq << IXGBE_RAH_VIND_SHIFT) & IXGBE_RAH_VIND_MASK);
 844        IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
 845        return 0;
 846}
 847
 848/**
 849 *  ixgbe_clear_vmdq_82598 - Disassociate a VMDq set index from an rx address
 850 *  @hw: pointer to hardware struct
 851 *  @rar: receive address register index to associate with a VMDq index
 852 *  @vmdq: VMDq clear index (not used in 82598, but elsewhere)
 853 **/
 854static s32 ixgbe_clear_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
 855{
 856        u32 rar_high;
 857        u32 rar_entries = hw->mac.num_rar_entries;
 858
 859
 860        /* Make sure we are using a valid rar index range */
 861        if (rar >= rar_entries) {
 862                hw_dbg(hw, "RAR index %d is out of range.\n", rar);
 863                return IXGBE_ERR_INVALID_ARGUMENT;
 864        }
 865
 866        rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
 867        if (rar_high & IXGBE_RAH_VIND_MASK) {
 868                rar_high &= ~IXGBE_RAH_VIND_MASK;
 869                IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
 870        }
 871
 872        return 0;
 873}
 874
 875/**
 876 *  ixgbe_set_vfta_82598 - Set VLAN filter table
 877 *  @hw: pointer to hardware structure
 878 *  @vlan: VLAN id to write to VLAN filter
 879 *  @vind: VMDq output index that maps queue to VLAN id in VFTA
 880 *  @vlan_on: boolean flag to turn on/off VLAN in VFTA
 881 *  @vlvf_bypass: boolean flag - unused
 882 *
 883 *  Turn on/off specified VLAN in the VLAN filter table.
 884 **/
 885static s32 ixgbe_set_vfta_82598(struct ixgbe_hw *hw, u32 vlan, u32 vind,
 886                                bool vlan_on, bool vlvf_bypass)
 887{
 888        u32 regindex;
 889        u32 bitindex;
 890        u32 bits;
 891        u32 vftabyte;
 892
 893        if (vlan > 4095)
 894                return IXGBE_ERR_PARAM;
 895
 896        /* Determine 32-bit word position in array */
 897        regindex = (vlan >> 5) & 0x7F;   /* upper seven bits */
 898
 899        /* Determine the location of the (VMD) queue index */
 900        vftabyte =  ((vlan >> 3) & 0x03); /* bits (4:3) indicating byte array */
 901        bitindex = (vlan & 0x7) << 2;    /* lower 3 bits indicate nibble */
 902
 903        /* Set the nibble for VMD queue index */
 904        bits = IXGBE_READ_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex));
 905        bits &= (~(0x0F << bitindex));
 906        bits |= (vind << bitindex);
 907        IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex), bits);
 908
 909        /* Determine the location of the bit for this VLAN id */
 910        bitindex = vlan & 0x1F;   /* lower five bits */
 911
 912        bits = IXGBE_READ_REG(hw, IXGBE_VFTA(regindex));
 913        if (vlan_on)
 914                /* Turn on this VLAN id */
 915                bits |= BIT(bitindex);
 916        else
 917                /* Turn off this VLAN id */
 918                bits &= ~BIT(bitindex);
 919        IXGBE_WRITE_REG(hw, IXGBE_VFTA(regindex), bits);
 920
 921        return 0;
 922}
 923
 924/**
 925 *  ixgbe_clear_vfta_82598 - Clear VLAN filter table
 926 *  @hw: pointer to hardware structure
 927 *
 928 *  Clears the VLAN filer table, and the VMDq index associated with the filter
 929 **/
 930static s32 ixgbe_clear_vfta_82598(struct ixgbe_hw *hw)
 931{
 932        u32 offset;
 933        u32 vlanbyte;
 934
 935        for (offset = 0; offset < hw->mac.vft_size; offset++)
 936                IXGBE_WRITE_REG(hw, IXGBE_VFTA(offset), 0);
 937
 938        for (vlanbyte = 0; vlanbyte < 4; vlanbyte++)
 939                for (offset = 0; offset < hw->mac.vft_size; offset++)
 940                        IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vlanbyte, offset),
 941                                        0);
 942
 943        return 0;
 944}
 945
 946/**
 947 *  ixgbe_read_analog_reg8_82598 - Reads 8 bit Atlas analog register
 948 *  @hw: pointer to hardware structure
 949 *  @reg: analog register to read
 950 *  @val: read value
 951 *
 952 *  Performs read operation to Atlas analog register specified.
 953 **/
 954static s32 ixgbe_read_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 *val)
 955{
 956        u32  atlas_ctl;
 957
 958        IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL,
 959                        IXGBE_ATLASCTL_WRITE_CMD | (reg << 8));
 960        IXGBE_WRITE_FLUSH(hw);
 961        udelay(10);
 962        atlas_ctl = IXGBE_READ_REG(hw, IXGBE_ATLASCTL);
 963        *val = (u8)atlas_ctl;
 964
 965        return 0;
 966}
 967
 968/**
 969 *  ixgbe_write_analog_reg8_82598 - Writes 8 bit Atlas analog register
 970 *  @hw: pointer to hardware structure
 971 *  @reg: atlas register to write
 972 *  @val: value to write
 973 *
 974 *  Performs write operation to Atlas analog register specified.
 975 **/
 976static s32 ixgbe_write_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 val)
 977{
 978        u32  atlas_ctl;
 979
 980        atlas_ctl = (reg << 8) | val;
 981        IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL, atlas_ctl);
 982        IXGBE_WRITE_FLUSH(hw);
 983        udelay(10);
 984
 985        return 0;
 986}
 987
 988/**
 989 *  ixgbe_read_i2c_phy_82598 - Reads 8 bit word over I2C interface.
 990 *  @hw: pointer to hardware structure
 991 *  @dev_addr: address to read from
 992 *  @byte_offset: byte offset to read from dev_addr
 993 *  @eeprom_data: value read
 994 *
 995 *  Performs 8 byte read operation to SFP module's data over I2C interface.
 996 **/
 997static s32 ixgbe_read_i2c_phy_82598(struct ixgbe_hw *hw, u8 dev_addr,
 998                                    u8 byte_offset, u8 *eeprom_data)
 999{
1000        s32 status = 0;
1001        u16 sfp_addr = 0;
1002        u16 sfp_data = 0;
1003        u16 sfp_stat = 0;
1004        u16 gssr;
1005        u32 i;
1006
1007        if (IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_LAN_ID_1)
1008                gssr = IXGBE_GSSR_PHY1_SM;
1009        else
1010                gssr = IXGBE_GSSR_PHY0_SM;
1011
1012        if (hw->mac.ops.acquire_swfw_sync(hw, gssr) != 0)
1013                return IXGBE_ERR_SWFW_SYNC;
1014
1015        if (hw->phy.type == ixgbe_phy_nl) {
1016                /*
1017                 * phy SDA/SCL registers are at addresses 0xC30A to
1018                 * 0xC30D.  These registers are used to talk to the SFP+
1019                 * module's EEPROM through the SDA/SCL (I2C) interface.
1020                 */
1021                sfp_addr = (dev_addr << 8) + byte_offset;
1022                sfp_addr = (sfp_addr | IXGBE_I2C_EEPROM_READ_MASK);
1023                hw->phy.ops.write_reg_mdi(hw,
1024                                          IXGBE_MDIO_PMA_PMD_SDA_SCL_ADDR,
1025                                          MDIO_MMD_PMAPMD,
1026                                          sfp_addr);
1027
1028                /* Poll status */
1029                for (i = 0; i < 100; i++) {
1030                        hw->phy.ops.read_reg_mdi(hw,
1031                                                IXGBE_MDIO_PMA_PMD_SDA_SCL_STAT,
1032                                                MDIO_MMD_PMAPMD,
1033                                                &sfp_stat);
1034                        sfp_stat = sfp_stat & IXGBE_I2C_EEPROM_STATUS_MASK;
1035                        if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_IN_PROGRESS)
1036                                break;
1037                        usleep_range(10000, 20000);
1038                }
1039
1040                if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_PASS) {
1041                        hw_dbg(hw, "EEPROM read did not pass.\n");
1042                        status = IXGBE_ERR_SFP_NOT_PRESENT;
1043                        goto out;
1044                }
1045
1046                /* Read data */
1047                hw->phy.ops.read_reg_mdi(hw, IXGBE_MDIO_PMA_PMD_SDA_SCL_DATA,
1048                                        MDIO_MMD_PMAPMD, &sfp_data);
1049
1050                *eeprom_data = (u8)(sfp_data >> 8);
1051        } else {
1052                status = IXGBE_ERR_PHY;
1053        }
1054
1055out:
1056        hw->mac.ops.release_swfw_sync(hw, gssr);
1057        return status;
1058}
1059
1060/**
1061 *  ixgbe_read_i2c_eeprom_82598 - Reads 8 bit word over I2C interface.
1062 *  @hw: pointer to hardware structure
1063 *  @byte_offset: EEPROM byte offset to read
1064 *  @eeprom_data: value read
1065 *
1066 *  Performs 8 byte read operation to SFP module's EEPROM over I2C interface.
1067 **/
1068static s32 ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
1069                                       u8 *eeprom_data)
1070{
1071        return ixgbe_read_i2c_phy_82598(hw, IXGBE_I2C_EEPROM_DEV_ADDR,
1072                                        byte_offset, eeprom_data);
1073}
1074
1075/**
1076 *  ixgbe_read_i2c_sff8472_82598 - Reads 8 bit word over I2C interface.
1077 *  @hw: pointer to hardware structure
1078 *  @byte_offset: byte offset at address 0xA2
1079 *  @eeprom_data: value read
1080 *
1081 *  Performs 8 byte read operation to SFP module's SFF-8472 data over I2C
1082 **/
1083static s32 ixgbe_read_i2c_sff8472_82598(struct ixgbe_hw *hw, u8 byte_offset,
1084                                       u8 *sff8472_data)
1085{
1086        return ixgbe_read_i2c_phy_82598(hw, IXGBE_I2C_EEPROM_DEV_ADDR2,
1087                                        byte_offset, sff8472_data);
1088}
1089
1090/**
1091 *  ixgbe_set_lan_id_multi_port_pcie_82598 - Set LAN id for PCIe multiple
1092 *  port devices.
1093 *  @hw: pointer to the HW structure
1094 *
1095 *  Calls common function and corrects issue with some single port devices
1096 *  that enable LAN1 but not LAN0.
1097 **/
1098static void ixgbe_set_lan_id_multi_port_pcie_82598(struct ixgbe_hw *hw)
1099{
1100        struct ixgbe_bus_info *bus = &hw->bus;
1101        u16 pci_gen = 0;
1102        u16 pci_ctrl2 = 0;
1103
1104        ixgbe_set_lan_id_multi_port_pcie(hw);
1105
1106        /* check if LAN0 is disabled */
1107        hw->eeprom.ops.read(hw, IXGBE_PCIE_GENERAL_PTR, &pci_gen);
1108        if ((pci_gen != 0) && (pci_gen != 0xFFFF)) {
1109
1110                hw->eeprom.ops.read(hw, pci_gen + IXGBE_PCIE_CTRL2, &pci_ctrl2);
1111
1112                /* if LAN0 is completely disabled force function to 0 */
1113                if ((pci_ctrl2 & IXGBE_PCIE_CTRL2_LAN_DISABLE) &&
1114                    !(pci_ctrl2 & IXGBE_PCIE_CTRL2_DISABLE_SELECT) &&
1115                    !(pci_ctrl2 & IXGBE_PCIE_CTRL2_DUMMY_ENABLE)) {
1116
1117                        bus->func = 0;
1118                }
1119        }
1120}
1121
1122/**
1123 * ixgbe_set_rxpba_82598 - Initialize RX packet buffer
1124 * @hw: pointer to hardware structure
1125 * @num_pb: number of packet buffers to allocate
1126 * @headroom: reserve n KB of headroom
1127 * @strategy: packet buffer allocation strategy
1128 **/
1129static void ixgbe_set_rxpba_82598(struct ixgbe_hw *hw, int num_pb,
1130                                  u32 headroom, int strategy)
1131{
1132        u32 rxpktsize = IXGBE_RXPBSIZE_64KB;
1133        u8  i = 0;
1134
1135        if (!num_pb)
1136                return;
1137
1138        /* Setup Rx packet buffer sizes */
1139        switch (strategy) {
1140        case PBA_STRATEGY_WEIGHTED:
1141                /* Setup the first four at 80KB */
1142                rxpktsize = IXGBE_RXPBSIZE_80KB;
1143                for (; i < 4; i++)
1144                        IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
1145                /* Setup the last four at 48KB...don't re-init i */
1146                rxpktsize = IXGBE_RXPBSIZE_48KB;
1147                /* Fall Through */
1148        case PBA_STRATEGY_EQUAL:
1149        default:
1150                /* Divide the remaining Rx packet buffer evenly among the TCs */
1151                for (; i < IXGBE_MAX_PACKET_BUFFERS; i++)
1152                        IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
1153                break;
1154        }
1155
1156        /* Setup Tx packet buffer sizes */
1157        for (i = 0; i < IXGBE_MAX_PACKET_BUFFERS; i++)
1158                IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i), IXGBE_TXPBSIZE_40KB);
1159}
1160
1161static const struct ixgbe_mac_operations mac_ops_82598 = {
1162        .init_hw                = &ixgbe_init_hw_generic,
1163        .reset_hw               = &ixgbe_reset_hw_82598,
1164        .start_hw               = &ixgbe_start_hw_82598,
1165        .clear_hw_cntrs         = &ixgbe_clear_hw_cntrs_generic,
1166        .get_media_type         = &ixgbe_get_media_type_82598,
1167        .enable_rx_dma          = &ixgbe_enable_rx_dma_generic,
1168        .get_mac_addr           = &ixgbe_get_mac_addr_generic,
1169        .stop_adapter           = &ixgbe_stop_adapter_generic,
1170        .get_bus_info           = &ixgbe_get_bus_info_generic,
1171        .set_lan_id             = &ixgbe_set_lan_id_multi_port_pcie_82598,
1172        .read_analog_reg8       = &ixgbe_read_analog_reg8_82598,
1173        .write_analog_reg8      = &ixgbe_write_analog_reg8_82598,
1174        .setup_link             = &ixgbe_setup_mac_link_82598,
1175        .set_rxpba              = &ixgbe_set_rxpba_82598,
1176        .check_link             = &ixgbe_check_mac_link_82598,
1177        .get_link_capabilities  = &ixgbe_get_link_capabilities_82598,
1178        .led_on                 = &ixgbe_led_on_generic,
1179        .led_off                = &ixgbe_led_off_generic,
1180        .init_led_link_act      = ixgbe_init_led_link_act_generic,
1181        .blink_led_start        = &ixgbe_blink_led_start_generic,
1182        .blink_led_stop         = &ixgbe_blink_led_stop_generic,
1183        .set_rar                = &ixgbe_set_rar_generic,
1184        .clear_rar              = &ixgbe_clear_rar_generic,
1185        .set_vmdq               = &ixgbe_set_vmdq_82598,
1186        .clear_vmdq             = &ixgbe_clear_vmdq_82598,
1187        .init_rx_addrs          = &ixgbe_init_rx_addrs_generic,
1188        .update_mc_addr_list    = &ixgbe_update_mc_addr_list_generic,
1189        .enable_mc              = &ixgbe_enable_mc_generic,
1190        .disable_mc             = &ixgbe_disable_mc_generic,
1191        .clear_vfta             = &ixgbe_clear_vfta_82598,
1192        .set_vfta               = &ixgbe_set_vfta_82598,
1193        .fc_enable              = &ixgbe_fc_enable_82598,
1194        .setup_fc               = ixgbe_setup_fc_generic,
1195        .fc_autoneg             = ixgbe_fc_autoneg,
1196        .set_fw_drv_ver         = NULL,
1197        .acquire_swfw_sync      = &ixgbe_acquire_swfw_sync,
1198        .release_swfw_sync      = &ixgbe_release_swfw_sync,
1199        .init_swfw_sync         = NULL,
1200        .get_thermal_sensor_data = NULL,
1201        .init_thermal_sensor_thresh = NULL,
1202        .prot_autoc_read        = &prot_autoc_read_generic,
1203        .prot_autoc_write       = &prot_autoc_write_generic,
1204        .enable_rx              = &ixgbe_enable_rx_generic,
1205        .disable_rx             = &ixgbe_disable_rx_generic,
1206};
1207
1208static const struct ixgbe_eeprom_operations eeprom_ops_82598 = {
1209        .init_params            = &ixgbe_init_eeprom_params_generic,
1210        .read                   = &ixgbe_read_eerd_generic,
1211        .write                  = &ixgbe_write_eeprom_generic,
1212        .write_buffer           = &ixgbe_write_eeprom_buffer_bit_bang_generic,
1213        .read_buffer            = &ixgbe_read_eerd_buffer_generic,
1214        .calc_checksum          = &ixgbe_calc_eeprom_checksum_generic,
1215        .validate_checksum      = &ixgbe_validate_eeprom_checksum_generic,
1216        .update_checksum        = &ixgbe_update_eeprom_checksum_generic,
1217};
1218
1219static const struct ixgbe_phy_operations phy_ops_82598 = {
1220        .identify               = &ixgbe_identify_phy_generic,
1221        .identify_sfp           = &ixgbe_identify_module_generic,
1222        .init                   = &ixgbe_init_phy_ops_82598,
1223        .reset                  = &ixgbe_reset_phy_generic,
1224        .read_reg               = &ixgbe_read_phy_reg_generic,
1225        .write_reg              = &ixgbe_write_phy_reg_generic,
1226        .read_reg_mdi           = &ixgbe_read_phy_reg_mdi,
1227        .write_reg_mdi          = &ixgbe_write_phy_reg_mdi,
1228        .setup_link             = &ixgbe_setup_phy_link_generic,
1229        .setup_link_speed       = &ixgbe_setup_phy_link_speed_generic,
1230        .read_i2c_sff8472       = &ixgbe_read_i2c_sff8472_82598,
1231        .read_i2c_eeprom        = &ixgbe_read_i2c_eeprom_82598,
1232        .check_overtemp         = &ixgbe_tn_check_overtemp,
1233};
1234
1235const struct ixgbe_info ixgbe_82598_info = {
1236        .mac                    = ixgbe_mac_82598EB,
1237        .get_invariants         = &ixgbe_get_invariants_82598,
1238        .mac_ops                = &mac_ops_82598,
1239        .eeprom_ops             = &eeprom_ops_82598,
1240        .phy_ops                = &phy_ops_82598,
1241        .mvals                  = ixgbe_mvals_8259X,
1242};
1243