kernel/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_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 #endif /* EFX_WORKAROUNDS_H */