linux/drivers/net/sfc/workarounds.h
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   1/****************************************************************************
   2 * Driver for Solarflare Solarstorm network controllers and boards
   3 * Copyright 2006-2010 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_ALWAYS(efx) 1
  19#define EFX_WORKAROUND_FALCON_A(efx) (efx_nic_rev(efx) <= EFX_REV_FALCON_A1)
  20#define EFX_WORKAROUND_FALCON_AB(efx) (efx_nic_rev(efx) <= EFX_REV_FALCON_B0)
  21#define EFX_WORKAROUND_SIENA(efx) (efx_nic_rev(efx) == EFX_REV_SIENA_A0)
  22#define EFX_WORKAROUND_10G(efx) 1
  23
  24/* XAUI resets if link not detected */
  25#define EFX_WORKAROUND_5147 EFX_WORKAROUND_ALWAYS
  26/* RX PCIe double split performance issue */
  27#define EFX_WORKAROUND_7575 EFX_WORKAROUND_ALWAYS
  28/* Bit-bashed I2C reads cause performance drop */
  29#define EFX_WORKAROUND_7884 EFX_WORKAROUND_10G
  30/* TX_EV_PKT_ERR can be caused by a dangling TX descriptor
  31 * or a PCIe error (bug 11028) */
  32#define EFX_WORKAROUND_10727 EFX_WORKAROUND_ALWAYS
  33/* Transmit flow control may get disabled */
  34#define EFX_WORKAROUND_11482 EFX_WORKAROUND_FALCON_AB
  35/* Truncated IPv4 packets can confuse the TX packet parser */
  36#define EFX_WORKAROUND_15592 EFX_WORKAROUND_FALCON_AB
  37/* Legacy ISR read can return zero once */
  38#define EFX_WORKAROUND_15783 EFX_WORKAROUND_ALWAYS
  39/* Legacy interrupt storm when interrupt fifo fills */
  40#define EFX_WORKAROUND_17213 EFX_WORKAROUND_SIENA
  41
  42/* Spurious parity errors in TSORT buffers */
  43#define EFX_WORKAROUND_5129 EFX_WORKAROUND_FALCON_A
  44/* Unaligned read request >512 bytes after aligning may break TSORT */
  45#define EFX_WORKAROUND_5391 EFX_WORKAROUND_FALCON_A
  46/* iSCSI parsing errors */
  47#define EFX_WORKAROUND_5583 EFX_WORKAROUND_FALCON_A
  48/* RX events go missing */
  49#define EFX_WORKAROUND_5676 EFX_WORKAROUND_FALCON_A
  50/* RX_RESET on A1 */
  51#define EFX_WORKAROUND_6555 EFX_WORKAROUND_FALCON_A
  52/* Increase filter depth to avoid RX_RESET */
  53#define EFX_WORKAROUND_7244 EFX_WORKAROUND_FALCON_A
  54/* Flushes may never complete */
  55#define EFX_WORKAROUND_7803 EFX_WORKAROUND_FALCON_AB
  56/* Leak overlength packets rather than free */
  57#define EFX_WORKAROUND_8071 EFX_WORKAROUND_FALCON_A
  58
  59#endif /* EFX_WORKAROUNDS_H */
  60