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_FALCON_A(efx) (efx_nic_rev(efx) <= EFX_REV_FALCON_A1)
  19#define EFX_WORKAROUND_FALCON_AB(efx) (efx_nic_rev(efx) <= EFX_REV_FALCON_B0)
  20#define EFX_WORKAROUND_SIENA(efx) (efx_nic_rev(efx) == EFX_REV_SIENA_A0)
  21#define EFX_WORKAROUND_10G(efx) 1
  22
  23/* Bit-bashed I2C reads cause performance drop */
  24#define EFX_WORKAROUND_7884 EFX_WORKAROUND_10G
  25/* Truncated IPv4 packets can confuse the TX packet parser */
  26#define EFX_WORKAROUND_15592 EFX_WORKAROUND_FALCON_AB
  27/* Legacy interrupt storm when interrupt fifo fills */
  28#define EFX_WORKAROUND_17213 EFX_WORKAROUND_SIENA
  29
  30/* Spurious parity errors in TSORT buffers */
  31#define EFX_WORKAROUND_5129 EFX_WORKAROUND_FALCON_A
  32/* Unaligned read request >512 bytes after aligning may break TSORT */
  33#define EFX_WORKAROUND_5391 EFX_WORKAROUND_FALCON_A
  34/* iSCSI parsing errors */
  35#define EFX_WORKAROUND_5583 EFX_WORKAROUND_FALCON_A
  36/* RX events go missing */
  37#define EFX_WORKAROUND_5676 EFX_WORKAROUND_FALCON_A
  38/* RX_RESET on A1 */
  39#define EFX_WORKAROUND_6555 EFX_WORKAROUND_FALCON_A
  40/* Increase filter depth to avoid RX_RESET */
  41#define EFX_WORKAROUND_7244 EFX_WORKAROUND_FALCON_A
  42/* Flushes may never complete */
  43#define EFX_WORKAROUND_7803 EFX_WORKAROUND_FALCON_AB
  44/* Leak overlength packets rather than free */
  45#define EFX_WORKAROUND_8071 EFX_WORKAROUND_FALCON_A
  46
  47/* Lockup when writing event block registers at gen2/gen3 */
  48#define EFX_EF10_WORKAROUND_35388(efx)                                  \
  49        (((struct efx_ef10_nic_data *)efx->nic_data)->workaround_35388)
  50#define EFX_WORKAROUND_35388(efx)                                       \
  51        (efx_nic_rev(efx) == EFX_REV_HUNT_A0 && EFX_EF10_WORKAROUND_35388(efx))
  52
  53/* Moderation timer access must go through MCDI */
  54#define EFX_EF10_WORKAROUND_61265(efx)                                  \
  55        (((struct efx_ef10_nic_data *)efx->nic_data)->workaround_61265)
  56
  57#endif /* EFX_WORKAROUNDS_H */
  58