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workarounds.h

workarounds.h 2.1 KB
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  1. /****************************************************************************
    2. 

  2.  * Driver for Solarflare network controllers and boards
    3. 

  3.  * Copyright 2006-2013 Solarflare Communications Inc.
    4. 

  4.  *
    5. 

  5.  * This program is free software; you can redistribute it and/or modify it
    6. 

  6.  * under the terms of the GNU General Public License version 2 as published
    7. 

  7.  * by the Free Software Foundation, incorporated herein by reference.
    8. 

  8.  */
    9. 

  9. 

  10. #ifndef EFX_WORKAROUNDS_H
    11. 

  11. #define EFX_WORKAROUNDS_H
    12. 

  12. 

  13. /*
    14. 

  14.  * Hardware workarounds.
    15. 

  15.  * Bug numbers are from Solarflare's Bugzilla.
    16. 

  16.  */
    17. 

  17. 

  18. #define EFX_WORKAROUND_FALCON_A(efx) (efx_nic_rev(efx) <= EFX_REV_FALCON_A1)
    19. 

  19. #define EFX_WORKAROUND_FALCON_AB(efx) (efx_nic_rev(efx) <= EFX_REV_FALCON_B0)
    20. 

  20. #define EFX_WORKAROUND_SIENA(efx) (efx_nic_rev(efx) == EFX_REV_SIENA_A0)
    21. 

  21. #define EFX_WORKAROUND_10G(efx) 1
    22. 

  22. 

  23. /* Bit-bashed I2C reads cause performance drop */
    24. 

  24. #define EFX_WORKAROUND_7884 EFX_WORKAROUND_10G
    25. 

  25. /* Truncated IPv4 packets can confuse the TX packet parser */
    26. 

  26. #define EFX_WORKAROUND_15592 EFX_WORKAROUND_FALCON_AB
    27. 

  27. /* Legacy interrupt storm when interrupt fifo fills */
    28. 

  28. #define EFX_WORKAROUND_17213 EFX_WORKAROUND_SIENA
    29. 

  29. 

  30. /* Spurious parity errors in TSORT buffers */
    31. 

  31. #define EFX_WORKAROUND_5129 EFX_WORKAROUND_FALCON_A
    32. 

  32. /* Unaligned read request >512 bytes after aligning may break TSORT */
    33. 

  33. #define EFX_WORKAROUND_5391 EFX_WORKAROUND_FALCON_A
    34. 

  34. /* iSCSI parsing errors */
    35. 

  35. #define EFX_WORKAROUND_5583 EFX_WORKAROUND_FALCON_A
    36. 

  36. /* RX events go missing */
    37. 

  37. #define EFX_WORKAROUND_5676 EFX_WORKAROUND_FALCON_A
    38. 

  38. /* RX_RESET on A1 */
    39. 

  39. #define EFX_WORKAROUND_6555 EFX_WORKAROUND_FALCON_A
    40. 

  40. /* Increase filter depth to avoid RX_RESET */
    41. 

  41. #define EFX_WORKAROUND_7244 EFX_WORKAROUND_FALCON_A
    42. 

  42. /* Flushes may never complete */
    43. 

  43. #define EFX_WORKAROUND_7803 EFX_WORKAROUND_FALCON_AB
    44. 

  44. /* Leak overlength packets rather than free */
    45. 

  45. #define EFX_WORKAROUND_8071 EFX_WORKAROUND_FALCON_A
    46. 

  46. 

  47. /* Lockup when writing event block registers at gen2/gen3 */
    48. 

  48. #define EFX_EF10_WORKAROUND_35388(efx)					\
    49. 

  49. 	(((struct efx_ef10_nic_data *)efx->nic_data)->workaround_35388)
    50. 

  50. #define EFX_WORKAROUND_35388(efx)					\
    51. 

  51. 	(efx_nic_rev(efx) == EFX_REV_HUNT_A0 && EFX_EF10_WORKAROUND_35388(efx))
    52. 

  52. 

  53. #endif /* EFX_WORKAROUNDS_H */
    54.