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Compiled tree of Oasis Linux based on own branch at <https://hacktivis.me/git/oasis/> git clone https://anongit.hacktivis.me/git/oasis-root.git

vfio_ccw.h (1317B)

    

  1. /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
  2. /*
  3.  * Interfaces for vfio-ccw
  4.  *
  5.  * Copyright IBM Corp. 2017
  6.  *
  7.  * Author(s): Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
  8.  */
  10. #ifndef _VFIO_CCW_H_
  11. #define _VFIO_CCW_H_
  13. #include <linux/types.h>
  15. /* used for START SUBCHANNEL, always present */
  16. struct ccw_io_region {
  17. #define ORB_AREA_SIZE 12
  18. 	__u8	orb_area[ORB_AREA_SIZE];
  19. #define SCSW_AREA_SIZE 12
  20. 	__u8	scsw_area[SCSW_AREA_SIZE];
  21. #define IRB_AREA_SIZE 96
  22. 	__u8	irb_area[IRB_AREA_SIZE];
  23. 	__u32	ret_code;
  24. } __attribute__((packed));
  26. /*
  27.  * used for processing commands that trigger asynchronous actions
  28.  * Note: this is controlled by a capability
  29.  */
  30. #define VFIO_CCW_ASYNC_CMD_HSCH (1 << 0)
  31. #define VFIO_CCW_ASYNC_CMD_CSCH (1 << 1)
  32. struct ccw_cmd_region {
  33. 	__u32 command;
  34. 	__u32 ret_code;
  35. } __attribute__((packed));
  37. /*
  38.  * Used for processing commands that read the subchannel-information block
  39.  * Reading this region triggers a stsch() to hardware
  40.  * Note: this is controlled by a capability
  41.  */
  42. struct ccw_schib_region {
  43. #define SCHIB_AREA_SIZE 52
  44. 	__u8 schib_area[SCHIB_AREA_SIZE];
  45. } __attribute__((packed));
  47. /*
  48.  * Used for returning a Channel Report Word to userspace.
  49.  * Note: this is controlled by a capability
  50.  */
  51. struct ccw_crw_region {
  52. 	__u32 crw;
  53. 	__u32 pad;
  54. } __attribute__((packed));
  56. #endif