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drivers
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s390
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cio
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chp.h

chp.h 1.3 KB
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  1. /*
    2. 

  2.  *  drivers/s390/cio/chp.h
    3. 

  3.  *
    4. 

  4.  *    Copyright IBM Corp. 2007
    5. 

  5.  *    Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
    6. 

  6.  */
    7. 

  7. 

  8. #ifndef S390_CHP_H
    9. 

  9. #define S390_CHP_H S390_CHP_H
    10. 

  10. 

  11. #include <linux/types.h>
    12. 

  12. #include <linux/device.h>
    13. 

  13. #include <asm/chpid.h>
    14. 

  14. #include "chsc.h"
    15. 

  15. 

  16. #define CHP_STATUS_STANDBY		0
    17. 

  17. #define CHP_STATUS_CONFIGURED		1
    18. 

  18. #define CHP_STATUS_RESERVED		2
    19. 

  19. #define CHP_STATUS_NOT_RECOGNIZED	3
    20. 

  20. 

  21. static inline int chp_test_bit(u8 *bitmap, int num)
    22. 

  22. {
    23. 

  23. 	int byte = num >> 3;
    24. 

  24. 	int mask = 128 >> (num & 7);
    25. 

  25. 

  26. 	return (bitmap[byte] & mask) ? 1 : 0;
    27. 

  27. }
    28. 

  28. 

  29. 

  30. struct channel_path {
    31. 

  31. 	struct chp_id chpid;
    32. 

  32. 	int state;
    33. 

  33. 	struct channel_path_desc desc;
    34. 

  34. 	/* Channel-measurement related stuff: */
    35. 

  35. 	int cmg;
    36. 

  36. 	int shared;
    37. 

  37. 	void *cmg_chars;
    38. 

  38. 	struct device dev;
    39. 

  39. };
    40. 

  40. 

  41. int chp_get_status(struct chp_id chpid);
    42. 

  42. u8 chp_get_sch_opm(struct subchannel *sch);
    43. 

  43. int chp_is_registered(struct chp_id chpid);
    44. 

  44. void *chp_get_chp_desc(struct chp_id chpid);
    45. 

  45. void chp_process_crw(int id, int available);
    46. 

  46. void chp_remove_cmg_attr(struct channel_path *chp);
    47. 

  47. int chp_add_cmg_attr(struct channel_path *chp);
    48. 

  48. int chp_new(struct chp_id chpid);
    49. 

  49. void chp_cfg_schedule(struct chp_id chpid, int configure);
    50. 

  50. void chp_cfg_cancel_deconfigure(struct chp_id chpid);
    51. 

  51. int chp_info_get_status(struct chp_id chpid);
    52. 

  52. 

  53. #endif /* S390_CHP_H */
    54.