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linux-vybrid_pu...
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net
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xenpack.h

xenpack.h 2.0 KB
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  1. /****************************************************************************
    2. 

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

  3.  * Copyright 2006 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_XENPACK_H
    11. 

  11. #define EFX_XENPACK_H
    12. 

  12. 

  13. /* Exported functions from Xenpack standard PHY control */
    14. 

  14. 

  15. #include "mdio_10g.h"
    16. 

  16. 

  17. /****************************************************************************/
    18. 

  18. /* XENPACK MDIO register extensions */
    19. 

  19. #define MDIO_XP_LASI_RX_CTRL	(0x9000)
    20. 

  20. #define MDIO_XP_LASI_TX_CTRL	(0x9001)
    21. 

  21. #define MDIO_XP_LASI_CTRL	(0x9002)
    22. 

  22. #define MDIO_XP_LASI_RX_STAT	(0x9003)
    23. 

  23. #define MDIO_XP_LASI_TX_STAT	(0x9004)
    24. 

  24. #define MDIO_XP_LASI_STAT	(0x9005)
    25. 

  25. 

  26. /* Control/Status bits */
    27. 

  27. #define XP_LASI_LS_ALARM	(1 << 0)
    28. 

  28. #define XP_LASI_TX_ALARM	(1 << 1)
    29. 

  29. #define XP_LASI_RX_ALARM	(1 << 2)
    30. 

  30. /* These two are Quake vendor extensions to the standard XENPACK defines */
    31. 

  31. #define XP_LASI_LS_INTB		(1 << 3)
    32. 

  32. #define XP_LASI_TEST		(1 << 7)
    33. 

  33. 

  34. /* Enable LASI interrupts for PHY */
    35. 

  35. static inline void xenpack_enable_lasi_irqs(struct efx_nic *efx)
    36. 

  36. {
    37. 

  37. 	int reg;
    38. 

  38. 	int phy_id = efx->mii.phy_id;
    39. 

  39. 	/* Read to clear LASI status register */
    40. 

  40. 	reg = mdio_clause45_read(efx, phy_id, MDIO_MMD_PMAPMD,
    41. 

  41. 				 MDIO_XP_LASI_STAT);
    42. 

  42. 

  43. 	mdio_clause45_write(efx, phy_id, MDIO_MMD_PMAPMD,
    44. 

  44. 			    MDIO_XP_LASI_CTRL, XP_LASI_LS_ALARM);
    45. 

  45. }
    46. 

  46. 

  47. /* Read the LASI interrupt status to clear the interrupt. */
    48. 

  48. static inline int xenpack_clear_lasi_irqs(struct efx_nic *efx)
    49. 

  49. {
    50. 

  50. 	/* Read to clear link status alarm */
    51. 

  51. 	return mdio_clause45_read(efx, efx->mii.phy_id,
    52. 

  52. 				  MDIO_MMD_PMAPMD, MDIO_XP_LASI_STAT);
    53. 

  53. }
    54. 

  54. 

  55. /* Turn off LASI interrupts */
    56. 

  56. static inline void xenpack_disable_lasi_irqs(struct efx_nic *efx)
    57. 

  57. {
    58. 

  58. 	mdio_clause45_write(efx, efx->mii.phy_id, MDIO_MMD_PMAPMD,
    59. 

  59. 			    MDIO_XP_LASI_CTRL, 0);
    60. 

  60. }
    61. 

  61. 

  62. #endif /* EFX_XENPACK_H */
    63.