LXR linux/drivers/net/ethernet/sfc/txc43128

   1/****************************************************************************
   2 * Driver for Solarflare network controllers and boards
   3 * Copyright 2006-2011 Solarflare Communications Inc.
   4 *
   5 * This program is free software; you can redistribute it and/or modify it
   6 * under the terms of the GNU General Public License version 2 as published
   7 * by the Free Software Foundation, incorporated herein by reference.
   8 */
   9
  10/*
  11 * Driver for Transwitch/Mysticom CX4 retimer
  12 * see www.transwitch.com, part is TXC-43128
  13 */
  14
  15#include <linux/delay.h>
  16#include <linux/slab.h>
  17#include "efx.h"
  18#include "mdio_10g.h"
  19#include "phy.h"
  20#include "nic.h"
  21
  22/* We expect these MMDs to be in the package */
  23#define TXC_REQUIRED_DEVS (MDIO_DEVS_PCS |      \
  24                           MDIO_DEVS_PMAPMD |   \
  25                           MDIO_DEVS_PHYXS)
  26
  27#define TXC_LOOPBACKS ((1 << LOOPBACK_PCS) |    \
  28                       (1 << LOOPBACK_PMAPMD) | \
  29                       (1 << LOOPBACK_PHYXS_WS))
  30
  31/**************************************************************************
  32 *
  33 * Compile-time config
  34 *
  35 **************************************************************************
  36 */
  37#define TXCNAME "TXC43128"
  38/* Total length of time we'll wait for the PHY to come out of reset (ms) */
  39#define TXC_MAX_RESET_TIME      500
  40/* Interval between checks (ms) */
  41#define TXC_RESET_WAIT          10
  42/* How long to run BIST (us) */
  43#define TXC_BIST_DURATION       50
  44
  45/**************************************************************************
  46 *
  47 * Register definitions
  48 *
  49 **************************************************************************
  50 */
  51
  52/* Command register */
  53#define TXC_GLRGS_GLCMD         0xc004
  54/* Useful bits in command register */
  55/* Lane power-down */
  56#define TXC_GLCMD_L01PD_LBN     5
  57#define TXC_GLCMD_L23PD_LBN     6
  58/* Limited SW reset: preserves configuration but
  59 * initiates a logic reset. Self-clearing */
  60#define TXC_GLCMD_LMTSWRST_LBN  14
  61
  62/* Signal Quality Control */
  63#define TXC_GLRGS_GSGQLCTL      0xc01a
  64/* Enable bit */
  65#define TXC_GSGQLCT_SGQLEN_LBN  15
  66/* Lane selection */
  67#define TXC_GSGQLCT_LNSL_LBN    13
  68#define TXC_GSGQLCT_LNSL_WIDTH  2
  69
  70/* Analog TX control */
  71#define TXC_ALRGS_ATXCTL        0xc040
  72/* Lane power-down */
  73#define TXC_ATXCTL_TXPD3_LBN    15
  74#define TXC_ATXCTL_TXPD2_LBN    14
  75#define TXC_ATXCTL_TXPD1_LBN    13
  76#define TXC_ATXCTL_TXPD0_LBN    12
  77
  78/* Amplitude on lanes 0, 1 */
  79#define TXC_ALRGS_ATXAMP0       0xc041
  80/* Amplitude on lanes 2, 3 */
  81#define TXC_ALRGS_ATXAMP1       0xc042
  82/* Bit position of value for lane 0 (or 2) */
  83#define TXC_ATXAMP_LANE02_LBN   3
  84/* Bit position of value for lane 1 (or 3) */
  85#define TXC_ATXAMP_LANE13_LBN   11
  86
  87#define TXC_ATXAMP_1280_mV      0
  88#define TXC_ATXAMP_1200_mV      8
  89#define TXC_ATXAMP_1120_mV      12
  90#define TXC_ATXAMP_1060_mV      14
  91#define TXC_ATXAMP_0820_mV      25
  92#define TXC_ATXAMP_0720_mV      26
  93#define TXC_ATXAMP_0580_mV      27
  94#define TXC_ATXAMP_0440_mV      28
  95
  96#define TXC_ATXAMP_0820_BOTH                                    \
  97        ((TXC_ATXAMP_0820_mV << TXC_ATXAMP_LANE02_LBN)          \
  98         | (TXC_ATXAMP_0820_mV << TXC_ATXAMP_LANE13_LBN))
  99
 100#define TXC_ATXAMP_DEFAULT      0x6060 /* From databook */
 101
 102/* Preemphasis on lanes 0, 1 */
 103#define TXC_ALRGS_ATXPRE0       0xc043
 104/* Preemphasis on lanes 2, 3 */
 105#define TXC_ALRGS_ATXPRE1       0xc044
 106
 107#define TXC_ATXPRE_NONE 0
 108#define TXC_ATXPRE_DEFAULT      0x1010 /* From databook */
 109
 110#define TXC_ALRGS_ARXCTL        0xc045
 111/* Lane power-down */
 112#define TXC_ARXCTL_RXPD3_LBN    15
 113#define TXC_ARXCTL_RXPD2_LBN    14
 114#define TXC_ARXCTL_RXPD1_LBN    13
 115#define TXC_ARXCTL_RXPD0_LBN    12
 116
 117/* Main control */
 118#define TXC_MRGS_CTL            0xc340
 119/* Bits in main control */
 120#define TXC_MCTL_RESET_LBN      15      /* Self clear */
 121#define TXC_MCTL_TXLED_LBN      14      /* 1 to show align status */
 122#define TXC_MCTL_RXLED_LBN      13      /* 1 to show align status */
 123
 124/* GPIO output */
 125#define TXC_GPIO_OUTPUT         0xc346
 126#define TXC_GPIO_DIR            0xc348
 127
 128/* Vendor-specific BIST registers */
 129#define TXC_BIST_CTL            0xc280
 130#define TXC_BIST_TXFRMCNT       0xc281
 131#define TXC_BIST_RX0FRMCNT      0xc282
 132#define TXC_BIST_RX1FRMCNT      0xc283
 133#define TXC_BIST_RX2FRMCNT      0xc284
 134#define TXC_BIST_RX3FRMCNT      0xc285
 135#define TXC_BIST_RX0ERRCNT      0xc286
 136#define TXC_BIST_RX1ERRCNT      0xc287
 137#define TXC_BIST_RX2ERRCNT      0xc288
 138#define TXC_BIST_RX3ERRCNT      0xc289
 139
 140/* BIST type (controls bit patter in test) */
 141#define TXC_BIST_CTRL_TYPE_LBN  10
 142#define TXC_BIST_CTRL_TYPE_TSD  0       /* TranSwitch Deterministic */
 143#define TXC_BIST_CTRL_TYPE_CRP  1       /* CRPAT standard */
 144#define TXC_BIST_CTRL_TYPE_CJP  2       /* CJPAT standard */
 145#define TXC_BIST_CTRL_TYPE_TSR  3       /* TranSwitch pseudo-random */
 146/* Set this to 1 for 10 bit and 0 for 8 bit */
 147#define TXC_BIST_CTRL_B10EN_LBN 12
 148/* Enable BIST (write 0 to disable) */
 149#define TXC_BIST_CTRL_ENAB_LBN  13
 150/* Stop BIST (self-clears when stop complete) */
 151#define TXC_BIST_CTRL_STOP_LBN  14
 152/* Start BIST (cleared by writing 1 to STOP) */
 153#define TXC_BIST_CTRL_STRT_LBN  15
 154
 155/* Mt. Diablo test configuration */
 156#define TXC_MTDIABLO_CTRL       0xc34f
 157#define TXC_MTDIABLO_CTRL_PMA_LOOP_LBN  10
 158
 159struct txc43128_data {
 160        unsigned long bug10934_timer;
 161        enum efx_phy_mode phy_mode;
 162        enum efx_loopback_mode loopback_mode;
 163};
 164
 165/* The PHY sometimes needs a reset to bring the link back up.  So long as
 166 * it reports link down, we reset it every 5 seconds.
 167 */
 168#define BUG10934_RESET_INTERVAL (5 * HZ)
 169
 170/* Perform a reset that doesn't clear configuration changes */
 171static void txc_reset_logic(struct efx_nic *efx);
 172
 173/* Set the output value of a gpio */
 174void falcon_txc_set_gpio_val(struct efx_nic *efx, int pin, int on)
 175{
 176        efx_mdio_set_flag(efx, MDIO_MMD_PHYXS, TXC_GPIO_OUTPUT, 1 << pin, on);
 177}
 178
 179/* Set up the GPIO direction register */
 180void falcon_txc_set_gpio_dir(struct efx_nic *efx, int pin, int dir)
 181{
 182        efx_mdio_set_flag(efx, MDIO_MMD_PHYXS, TXC_GPIO_DIR, 1 << pin, dir);
 183}
 184
 185/* Reset the PMA/PMD MMD. The documentation is explicit that this does a
 186 * global reset (it's less clear what reset of other MMDs does).*/
 187static int txc_reset_phy(struct efx_nic *efx)
 188{
 189        int rc = efx_mdio_reset_mmd(efx, MDIO_MMD_PMAPMD,
 190                                    TXC_MAX_RESET_TIME / TXC_RESET_WAIT,
 191                                    TXC_RESET_WAIT);
 192        if (rc < 0)
 193                goto fail;
 194
 195        /* Check that all the MMDs we expect are present and responding. */
 196        rc = efx_mdio_check_mmds(efx, TXC_REQUIRED_DEVS);
 197        if (rc < 0)
 198                goto fail;
 199
 200        return 0;
 201
 202fail:
 203        netif_err(efx, hw, efx->net_dev, TXCNAME ": reset timed out!\n");
 204        return rc;
 205}
 206
 207/* Run a single BIST on one MMD */
 208static int txc_bist_one(struct efx_nic *efx, int mmd, int test)
 209{
 210        int ctrl, bctl;
 211        int lane;
 212        int rc = 0;
 213
 214        /* Set PMA to test into loopback using Mt Diablo reg as per app note */
 215        ctrl = efx_mdio_read(efx, MDIO_MMD_PCS, TXC_MTDIABLO_CTRL);
 216        ctrl |= (1 << TXC_MTDIABLO_CTRL_PMA_LOOP_LBN);
 217        efx_mdio_write(efx, MDIO_MMD_PCS, TXC_MTDIABLO_CTRL, ctrl);
 218
 219        /* The BIST app. note lists these  as 3 distinct steps. */
 220        /* Set the BIST type */
 221        bctl = (test << TXC_BIST_CTRL_TYPE_LBN);
 222        efx_mdio_write(efx, mmd, TXC_BIST_CTL, bctl);
 223
 224        /* Set the BSTEN bit in the BIST Control register to enable */
 225        bctl |= (1 << TXC_BIST_CTRL_ENAB_LBN);
 226        efx_mdio_write(efx, mmd, TXC_BIST_CTL, bctl);
 227
 228        /* Set the BSTRT bit in the BIST Control register */
 229        efx_mdio_write(efx, mmd, TXC_BIST_CTL,
 230                       bctl | (1 << TXC_BIST_CTRL_STRT_LBN));
 231
 232        /* Wait. */
 233        udelay(TXC_BIST_DURATION);
 234
 235        /* Set the BSTOP bit in the BIST Control register */
 236        bctl |= (1 << TXC_BIST_CTRL_STOP_LBN);
 237        efx_mdio_write(efx, mmd, TXC_BIST_CTL, bctl);
 238
 239        /* The STOP bit should go off when things have stopped */
 240        while (bctl & (1 << TXC_BIST_CTRL_STOP_LBN))
 241                bctl = efx_mdio_read(efx, mmd, TXC_BIST_CTL);
 242
 243        /* Check all the error counts are 0 and all the frame counts are
 244           non-zero */
 245        for (lane = 0; lane < 4; lane++) {
 246                int count = efx_mdio_read(efx, mmd, TXC_BIST_RX0ERRCNT + lane);
 247                if (count != 0) {
 248                        netif_err(efx, hw, efx->net_dev, TXCNAME": BIST error. "
 249                                  "Lane %d had %d errs\n", lane, count);
 250                        rc = -EIO;
 251                }
 252                count = efx_mdio_read(efx, mmd, TXC_BIST_RX0FRMCNT + lane);
 253                if (count == 0) {
 254                        netif_err(efx, hw, efx->net_dev, TXCNAME": BIST error. "
 255                                  "Lane %d got 0 frames\n", lane);
 256                        rc = -EIO;
 257                }
 258        }
 259
 260        if (rc == 0)
 261                netif_info(efx, hw, efx->net_dev, TXCNAME": BIST pass\n");
 262
 263        /* Disable BIST */
 264        efx_mdio_write(efx, mmd, TXC_BIST_CTL, 0);
 265
 266        /* Turn off loopback */
 267        ctrl &= ~(1 << TXC_MTDIABLO_CTRL_PMA_LOOP_LBN);
 268        efx_mdio_write(efx, MDIO_MMD_PCS, TXC_MTDIABLO_CTRL, ctrl);
 269
 270        return rc;
 271}
 272
 273static int txc_bist(struct efx_nic *efx)
 274{
 275        return txc_bist_one(efx, MDIO_MMD_PCS, TXC_BIST_CTRL_TYPE_TSD);
 276}
 277
 278/* Push the non-configurable defaults into the PHY. This must be
 279 * done after every full reset */
 280static void txc_apply_defaults(struct efx_nic *efx)
 281{
 282        int mctrl;
 283
 284        /* Turn amplitude down and preemphasis off on the host side
 285         * (PHY<->MAC) as this is believed less likely to upset Falcon
 286         * and no adverse effects have been noted. It probably also
 287         * saves a picowatt or two */
 288
 289        /* Turn off preemphasis */
 290        efx_mdio_write(efx, MDIO_MMD_PHYXS, TXC_ALRGS_ATXPRE0, TXC_ATXPRE_NONE);
 291        efx_mdio_write(efx, MDIO_MMD_PHYXS, TXC_ALRGS_ATXPRE1, TXC_ATXPRE_NONE);
 292
 293        /* Turn down the amplitude */
 294        efx_mdio_write(efx, MDIO_MMD_PHYXS,
 295                       TXC_ALRGS_ATXAMP0, TXC_ATXAMP_0820_BOTH);
 296        efx_mdio_write(efx, MDIO_MMD_PHYXS,
 297                       TXC_ALRGS_ATXAMP1, TXC_ATXAMP_0820_BOTH);
 298
 299        /* Set the line side amplitude and preemphasis to the databook
 300         * defaults as an erratum causes them to be 0 on at least some
 301         * PHY rev.s */
 302        efx_mdio_write(efx, MDIO_MMD_PMAPMD,
 303                       TXC_ALRGS_ATXPRE0, TXC_ATXPRE_DEFAULT);
 304        efx_mdio_write(efx, MDIO_MMD_PMAPMD,
 305                       TXC_ALRGS_ATXPRE1, TXC_ATXPRE_DEFAULT);
 306        efx_mdio_write(efx, MDIO_MMD_PMAPMD,
 307                       TXC_ALRGS_ATXAMP0, TXC_ATXAMP_DEFAULT);
 308        efx_mdio_write(efx, MDIO_MMD_PMAPMD,
 309                       TXC_ALRGS_ATXAMP1, TXC_ATXAMP_DEFAULT);
 310
 311        /* Set up the LEDs  */
 312        mctrl = efx_mdio_read(efx, MDIO_MMD_PHYXS, TXC_MRGS_CTL);
 313
 314        /* Set the Green and Red LEDs to their default modes */
 315        mctrl &= ~((1 << TXC_MCTL_TXLED_LBN) | (1 << TXC_MCTL_RXLED_LBN));
 316        efx_mdio_write(efx, MDIO_MMD_PHYXS, TXC_MRGS_CTL, mctrl);
 317
 318        /* Databook recommends doing this after configuration changes */
 319        txc_reset_logic(efx);
 320
 321        falcon_board(efx)->type->init_phy(efx);
 322}
 323
 324static int txc43128_phy_probe(struct efx_nic *efx)
 325{
 326        struct txc43128_data *phy_data;
 327
 328        /* Allocate phy private storage */
 329        phy_data = kzalloc(sizeof(*phy_data), GFP_KERNEL);
 330        if (!phy_data)
 331                return -ENOMEM;
 332        efx->phy_data = phy_data;
 333        phy_data->phy_mode = efx->phy_mode;
 334
 335        efx->mdio.mmds = TXC_REQUIRED_DEVS;
 336        efx->mdio.mode_support = MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22;
 337
 338        efx->loopback_modes = TXC_LOOPBACKS | FALCON_XMAC_LOOPBACKS;
 339
 340        return 0;
 341}
 342
 343/* Initialisation entry point for this PHY driver */
 344static int txc43128_phy_init(struct efx_nic *efx)
 345{
 346        int rc;
 347
 348        rc = txc_reset_phy(efx);
 349        if (rc < 0)
 350                return rc;
 351
 352        rc = txc_bist(efx);
 353        if (rc < 0)
 354                return rc;
 355
 356        txc_apply_defaults(efx);
 357
 358        return 0;
 359}
 360
 361/* Set the lane power down state in the global registers */
 362static void txc_glrgs_lane_power(struct efx_nic *efx, int mmd)
 363{
 364        int pd = (1 << TXC_GLCMD_L01PD_LBN) | (1 << TXC_GLCMD_L23PD_LBN);
 365        int ctl = efx_mdio_read(efx, mmd, TXC_GLRGS_GLCMD);
 366
 367        if (!(efx->phy_mode & PHY_MODE_LOW_POWER))
 368                ctl &= ~pd;
 369        else
 370                ctl |= pd;
 371
 372        efx_mdio_write(efx, mmd, TXC_GLRGS_GLCMD, ctl);
 373}
 374
 375/* Set the lane power down state in the analog control registers */
 376static void txc_analog_lane_power(struct efx_nic *efx, int mmd)
 377{
 378        int txpd = (1 << TXC_ATXCTL_TXPD3_LBN) | (1 << TXC_ATXCTL_TXPD2_LBN)
 379                | (1 << TXC_ATXCTL_TXPD1_LBN) | (1 << TXC_ATXCTL_TXPD0_LBN);
 380        int rxpd = (1 << TXC_ARXCTL_RXPD3_LBN) | (1 << TXC_ARXCTL_RXPD2_LBN)
 381                | (1 << TXC_ARXCTL_RXPD1_LBN) | (1 << TXC_ARXCTL_RXPD0_LBN);
 382        int txctl = efx_mdio_read(efx, mmd, TXC_ALRGS_ATXCTL);
 383        int rxctl = efx_mdio_read(efx, mmd, TXC_ALRGS_ARXCTL);
 384
 385        if (!(efx->phy_mode & PHY_MODE_LOW_POWER)) {
 386                txctl &= ~txpd;
 387                rxctl &= ~rxpd;
 388        } else {
 389                txctl |= txpd;
 390                rxctl |= rxpd;
 391        }
 392
 393        efx_mdio_write(efx, mmd, TXC_ALRGS_ATXCTL, txctl);
 394        efx_mdio_write(efx, mmd, TXC_ALRGS_ARXCTL, rxctl);
 395}
 396
 397static void txc_set_power(struct efx_nic *efx)
 398{
 399        /* According to the data book, all the MMDs can do low power */
 400        efx_mdio_set_mmds_lpower(efx,
 401                                 !!(efx->phy_mode & PHY_MODE_LOW_POWER),
 402                                 TXC_REQUIRED_DEVS);
 403
 404        /* Global register bank is in PCS, PHY XS. These control the host
 405         * side and line side settings respectively. */
 406        txc_glrgs_lane_power(efx, MDIO_MMD_PCS);
 407        txc_glrgs_lane_power(efx, MDIO_MMD_PHYXS);
 408
 409        /* Analog register bank in PMA/PMD, PHY XS */
 410        txc_analog_lane_power(efx, MDIO_MMD_PMAPMD);
 411        txc_analog_lane_power(efx, MDIO_MMD_PHYXS);
 412}
 413
 414static void txc_reset_logic_mmd(struct efx_nic *efx, int mmd)
 415{
 416        int val = efx_mdio_read(efx, mmd, TXC_GLRGS_GLCMD);
 417        int tries = 50;
 418
 419        val |= (1 << TXC_GLCMD_LMTSWRST_LBN);
 420        efx_mdio_write(efx, mmd, TXC_GLRGS_GLCMD, val);
 421        while (tries--) {
 422                val = efx_mdio_read(efx, mmd, TXC_GLRGS_GLCMD);
 423                if (!(val & (1 << TXC_GLCMD_LMTSWRST_LBN)))
 424                        break;
 425                udelay(1);
 426        }
 427        if (!tries)
 428                netif_info(efx, hw, efx->net_dev,
 429                           TXCNAME " Logic reset timed out!\n");
 430}
 431
 432/* Perform a logic reset. This preserves the configuration registers
 433 * and is needed for some configuration changes to take effect */
 434static void txc_reset_logic(struct efx_nic *efx)
 435{
 436        /* The data sheet claims we can do the logic reset on either the
 437         * PCS or the PHYXS and the result is a reset of both host- and
 438         * line-side logic. */
 439        txc_reset_logic_mmd(efx, MDIO_MMD_PCS);
 440}
 441
 442static bool txc43128_phy_read_link(struct efx_nic *efx)
 443{
 444        return efx_mdio_links_ok(efx, TXC_REQUIRED_DEVS);
 445}
 446
 447static int txc43128_phy_reconfigure(struct efx_nic *efx)
 448{
 449        struct txc43128_data *phy_data = efx->phy_data;
 450        enum efx_phy_mode mode_change = efx->phy_mode ^ phy_data->phy_mode;
 451        bool loop_change = LOOPBACK_CHANGED(phy_data, efx, TXC_LOOPBACKS);
 452
 453        if (efx->phy_mode & mode_change & PHY_MODE_TX_DISABLED) {
 454                txc_reset_phy(efx);
 455                txc_apply_defaults(efx);
 456                falcon_reset_xaui(efx);
 457                mode_change &= ~PHY_MODE_TX_DISABLED;
 458        }
 459
 460        efx_mdio_transmit_disable(efx);
 461        efx_mdio_phy_reconfigure(efx);
 462        if (mode_change & PHY_MODE_LOW_POWER)
 463                txc_set_power(efx);
 464
 465        /* The data sheet claims this is required after every reconfiguration
 466         * (note at end of 7.1), but we mustn't do it when nothing changes as
 467         * it glitches the link, and reconfigure gets called on link change,
 468         * so we get an IRQ storm on link up. */
 469        if (loop_change || mode_change)
 470                txc_reset_logic(efx);
 471
 472        phy_data->phy_mode = efx->phy_mode;
 473        phy_data->loopback_mode = efx->loopback_mode;
 474
 475        return 0;
 476}
 477
 478static void txc43128_phy_fini(struct efx_nic *efx)
 479{
 480        /* Disable link events */
 481        efx_mdio_write(efx, MDIO_MMD_PMAPMD, MDIO_PMA_LASI_CTRL, 0);
 482}
 483
 484static void txc43128_phy_remove(struct efx_nic *efx)
 485{
 486        kfree(efx->phy_data);
 487        efx->phy_data = NULL;
 488}
 489
 490/* Periodic callback: this exists mainly to poll link status as we
 491 * don't use LASI interrupts */
 492static bool txc43128_phy_poll(struct efx_nic *efx)
 493{
 494        struct txc43128_data *data = efx->phy_data;
 495        bool was_up = efx->link_state.up;
 496
 497        efx->link_state.up = txc43128_phy_read_link(efx);
 498        efx->link_state.speed = 10000;
 499        efx->link_state.fd = true;
 500        efx->link_state.fc = efx->wanted_fc;
 501
 502        if (efx->link_state.up || (efx->loopback_mode != LOOPBACK_NONE)) {
 503                data->bug10934_timer = jiffies;
 504        } else {
 505                if (time_after_eq(jiffies, (data->bug10934_timer +
 506                                            BUG10934_RESET_INTERVAL))) {
 507                        data->bug10934_timer = jiffies;
 508                        txc_reset_logic(efx);
 509                }
 510        }
 511
 512        return efx->link_state.up != was_up;
 513}
 514
 515static const char *const txc43128_test_names[] = {
 516        "bist"
 517};
 518
 519static const char *txc43128_test_name(struct efx_nic *efx, unsigned int index)
 520{
 521        if (index < ARRAY_SIZE(txc43128_test_names))
 522                return txc43128_test_names[index];
 523        return NULL;
 524}
 525
 526static int txc43128_run_tests(struct efx_nic *efx, int *results, unsigned flags)
 527{
 528        int rc;
 529
 530        if (!(flags & ETH_TEST_FL_OFFLINE))
 531                return 0;
 532
 533        rc = txc_reset_phy(efx);
 534        if (rc < 0)
 535                return rc;
 536
 537        rc = txc_bist(efx);
 538        txc_apply_defaults(efx);
 539        results[0] = rc ? -1 : 1;
 540        return rc;
 541}
 542
 543static void txc43128_get_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd)
 544{
 545        mdio45_ethtool_gset(&efx->mdio, ecmd);
 546}
 547
 548const struct efx_phy_operations falcon_txc_phy_ops = {
 549        .probe          = txc43128_phy_probe,
 550        .init           = txc43128_phy_init,
 551        .reconfigure    = txc43128_phy_reconfigure,
 552        .poll           = txc43128_phy_poll,
 553        .fini           = txc43128_phy_fini,
 554        .remove         = txc43128_phy_remove,
 555        .get_settings   = txc43128_get_settings,
 556        .set_settings   = efx_mdio_set_settings,
 557        .test_alive     = efx_mdio_test_alive,
 558        .run_tests      = txc43128_run_tests,
 559        .test_name      = txc43128_test_name,
 560};
 561