drivers/net/ethernet/sfc/workarounds.h

   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 */