linux/drivers/net/ethernet/sfc/workarounds.h
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   1/****************************************************************************
   2 * Driver for Solarflare network controllers and boards
   3 * Copyright 2006-2013 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#ifndef EFX_WORKAROUNDS_H
  11#define EFX_WORKAROUNDS_H
  12
  13/*
  14 * Hardware workarounds.
  15 * Bug numbers are from Solarflare's Bugzilla.
  16 */
  17
  18#define EFX_WORKAROUND_SIENA(efx) (efx_nic_rev(efx) == EFX_REV_SIENA_A0)
  19#define EFX_WORKAROUND_EF10(efx) (efx_nic_rev(efx) >= EFX_REV_HUNT_A0)
  20#define EFX_WORKAROUND_10G(efx) 1
  21
  22/* Bit-bashed I2C reads cause performance drop */
  23#define EFX_WORKAROUND_7884 EFX_WORKAROUND_10G
  24/* Legacy interrupt storm when interrupt fifo fills */
  25#define EFX_WORKAROUND_17213 EFX_WORKAROUND_SIENA
  26
  27/* Lockup when writing event block registers at gen2/gen3 */
  28#define EFX_EF10_WORKAROUND_35388(efx)                                  \
  29        (((struct efx_ef10_nic_data *)efx->nic_data)->workaround_35388)
  30#define EFX_WORKAROUND_35388(efx)                                       \
  31        (efx_nic_rev(efx) == EFX_REV_HUNT_A0 && EFX_EF10_WORKAROUND_35388(efx))
  32
  33/* Moderation timer access must go through MCDI */
  34#define EFX_EF10_WORKAROUND_61265(efx)                                  \
  35        (((struct efx_ef10_nic_data *)efx->nic_data)->workaround_61265)
  36
  37#endif /* EFX_WORKAROUNDS_H */
  38