nd-core.h 3.5 KB

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  1. /*
  2. * Copyright(c) 2013-2015 Intel Corporation. All rights reserved.
  3. *
  4. * This program is free software; you can redistribute it and/or modify
  5. * it under the terms of version 2 of the GNU General Public License as
  6. * published by the Free Software Foundation.
  7. *
  8. * This program is distributed in the hope that it will be useful, but
  9. * WITHOUT ANY WARRANTY; without even the implied warranty of
  10. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  11. * General Public License for more details.
  12. */
  13. #ifndef __ND_CORE_H__
  14. #define __ND_CORE_H__
  15. #include <linux/libnvdimm.h>
  16. #include <linux/device.h>
  17. #include <linux/libnvdimm.h>
  18. #include <linux/sizes.h>
  19. #include <linux/mutex.h>
  20. #include <linux/nd.h>
  21. extern struct list_head nvdimm_bus_list;
  22. extern struct mutex nvdimm_bus_list_mutex;
  23. extern int nvdimm_major;
  24. struct nvdimm_bus {
  25. struct nvdimm_bus_descriptor *nd_desc;
  26. wait_queue_head_t probe_wait;
  27. struct module *module;
  28. struct list_head list;
  29. struct device dev;
  30. int id, probe_active;
  31. struct mutex reconfig_mutex;
  32. };
  33. struct nvdimm {
  34. unsigned long flags;
  35. void *provider_data;
  36. unsigned long *dsm_mask;
  37. struct device dev;
  38. atomic_t busy;
  39. int id;
  40. };
  41. bool is_nvdimm(struct device *dev);
  42. bool is_nd_pmem(struct device *dev);
  43. bool is_nd_blk(struct device *dev);
  44. struct nvdimm_bus *walk_to_nvdimm_bus(struct device *nd_dev);
  45. int __init nvdimm_bus_init(void);
  46. void nvdimm_bus_exit(void);
  47. void nd_region_probe_success(struct nvdimm_bus *nvdimm_bus, struct device *dev);
  48. struct nd_region;
  49. void nd_region_create_blk_seed(struct nd_region *nd_region);
  50. void nd_region_create_btt_seed(struct nd_region *nd_region);
  51. void nd_region_disable(struct nvdimm_bus *nvdimm_bus, struct device *dev);
  52. int nvdimm_bus_create_ndctl(struct nvdimm_bus *nvdimm_bus);
  53. void nvdimm_bus_destroy_ndctl(struct nvdimm_bus *nvdimm_bus);
  54. void nd_synchronize(void);
  55. int nvdimm_bus_register_dimms(struct nvdimm_bus *nvdimm_bus);
  56. int nvdimm_bus_register_regions(struct nvdimm_bus *nvdimm_bus);
  57. int nvdimm_bus_init_interleave_sets(struct nvdimm_bus *nvdimm_bus);
  58. void __nd_device_register(struct device *dev);
  59. int nd_match_dimm(struct device *dev, void *data);
  60. struct nd_label_id;
  61. char *nd_label_gen_id(struct nd_label_id *label_id, u8 *uuid, u32 flags);
  62. bool nd_is_uuid_unique(struct device *dev, u8 *uuid);
  63. struct nd_region;
  64. struct nvdimm_drvdata;
  65. struct nd_mapping;
  66. resource_size_t nd_pmem_available_dpa(struct nd_region *nd_region,
  67. struct nd_mapping *nd_mapping, resource_size_t *overlap);
  68. resource_size_t nd_blk_available_dpa(struct nd_mapping *nd_mapping);
  69. resource_size_t nd_region_available_dpa(struct nd_region *nd_region);
  70. resource_size_t nvdimm_allocated_dpa(struct nvdimm_drvdata *ndd,
  71. struct nd_label_id *label_id);
  72. struct nd_mapping;
  73. struct resource *nsblk_add_resource(struct nd_region *nd_region,
  74. struct nvdimm_drvdata *ndd, struct nd_namespace_blk *nsblk,
  75. resource_size_t start);
  76. int nvdimm_num_label_slots(struct nvdimm_drvdata *ndd);
  77. void get_ndd(struct nvdimm_drvdata *ndd);
  78. resource_size_t __nvdimm_namespace_capacity(struct nd_namespace_common *ndns);
  79. void nd_detach_ndns(struct device *dev, struct nd_namespace_common **_ndns);
  80. void __nd_detach_ndns(struct device *dev, struct nd_namespace_common **_ndns);
  81. bool nd_attach_ndns(struct device *dev, struct nd_namespace_common *attach,
  82. struct nd_namespace_common **_ndns);
  83. bool __nd_attach_ndns(struct device *dev, struct nd_namespace_common *attach,
  84. struct nd_namespace_common **_ndns);
  85. ssize_t nd_namespace_store(struct device *dev,
  86. struct nd_namespace_common **_ndns, const char *buf,
  87. size_t len);
  88. #endif /* __ND_CORE_H__ */