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workarounds.h

workarounds.h 2.4 KB
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  1. /****************************************************************************
    2. 

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

  3.  * Copyright 2006-2010 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_ALWAYS(efx) 1
    19. 

  19. #define EFX_WORKAROUND_FALCON_A(efx) (efx_nic_rev(efx) <= EFX_REV_FALCON_A1)
    20. 

  20. #define EFX_WORKAROUND_FALCON_AB(efx) (efx_nic_rev(efx) <= EFX_REV_FALCON_B0)
    21. 

  21. #define EFX_WORKAROUND_SIENA(efx) (efx_nic_rev(efx) == EFX_REV_SIENA_A0)
    22. 

  22. #define EFX_WORKAROUND_10G(efx) 1
    23. 

  23. 

  24. /* XAUI resets if link not detected */
    25. 

  25. #define EFX_WORKAROUND_5147 EFX_WORKAROUND_ALWAYS
    26. 

  26. /* RX PCIe double split performance issue */
    27. 

  27. #define EFX_WORKAROUND_7575 EFX_WORKAROUND_ALWAYS
    28. 

  28. /* Bit-bashed I2C reads cause performance drop */
    29. 

  29. #define EFX_WORKAROUND_7884 EFX_WORKAROUND_10G
    30. 

  30. /* TX_EV_PKT_ERR can be caused by a dangling TX descriptor
    31. 

  31.  * or a PCIe error (bug 11028) */
    32. 

  32. #define EFX_WORKAROUND_10727 EFX_WORKAROUND_ALWAYS
    33. 

  33. /* Transmit flow control may get disabled */
    34. 

  34. #define EFX_WORKAROUND_11482 EFX_WORKAROUND_FALCON_AB
    35. 

  35. /* Truncated IPv4 packets can confuse the TX packet parser */
    36. 

  36. #define EFX_WORKAROUND_15592 EFX_WORKAROUND_FALCON_AB
    37. 

  37. /* Legacy ISR read can return zero once */
    38. 

  38. #define EFX_WORKAROUND_15783 EFX_WORKAROUND_ALWAYS
    39. 

  39. /* Legacy interrupt storm when interrupt fifo fills */
    40. 

  40. #define EFX_WORKAROUND_17213 EFX_WORKAROUND_SIENA
    41. 

  41. 

  42. /* Spurious parity errors in TSORT buffers */
    43. 

  43. #define EFX_WORKAROUND_5129 EFX_WORKAROUND_FALCON_A
    44. 

  44. /* Unaligned read request >512 bytes after aligning may break TSORT */
    45. 

  45. #define EFX_WORKAROUND_5391 EFX_WORKAROUND_FALCON_A
    46. 

  46. /* iSCSI parsing errors */
    47. 

  47. #define EFX_WORKAROUND_5583 EFX_WORKAROUND_FALCON_A
    48. 

  48. /* RX events go missing */
    49. 

  49. #define EFX_WORKAROUND_5676 EFX_WORKAROUND_FALCON_A
    50. 

  50. /* RX_RESET on A1 */
    51. 

  51. #define EFX_WORKAROUND_6555 EFX_WORKAROUND_FALCON_A
    52. 

  52. /* Increase filter depth to avoid RX_RESET */
    53. 

  53. #define EFX_WORKAROUND_7244 EFX_WORKAROUND_FALCON_A
    54. 

  54. /* Flushes may never complete */
    55. 

  55. #define EFX_WORKAROUND_7803 EFX_WORKAROUND_FALCON_AB
    56. 

  56. /* Leak overlength packets rather than free */
    57. 

  57. #define EFX_WORKAROUND_8071 EFX_WORKAROUND_FALCON_A
    58. 

  58. 

  59. #endif /* EFX_WORKAROUNDS_H */
    60. 

  60.