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| author |   Dan Williams <dan.j.williams@intel.com> | 2015-07-30 17:57:47 -0400 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2015-08-28 23:39:36 -0400 |
| commit | e1455744b27c9e6115c3508a7b2902157c2c4347 (patch) | |
| tree | 6bfbc5d78269c9389f5bcfc1adc35d4f7f2e6fa4 /drivers/nvdimm/nd-core.h | |
| parent | x86, pmem: clarify that ARCH_HAS_PMEM_API implies PMEM mapped WB (diff) | |
| download | linux-dev-e1455744b27c9e6115c3508a7b2902157c2c4347.tar.xz linux-dev-e1455744b27c9e6115c3508a7b2902157c2c4347.zip | |
libnvdimm, pfn: 'struct page' provider infrastructure
Implement the base infrastructure for libnvdimm PFN devices. Similar to
BTT devices they take a namespace as a backing device and layer
functionality on top. In this case the functionality is reserving space
for an array of 'struct page' entries to be handed out through
pfn_to_page(). For now this is just the basic libnvdimm-device-model for
configuring the base PFN device.
As the namespace claiming mechanism for PFN devices is mostly identical
to BTT devices drivers/nvdimm/claim.c is created to house the common
bits.
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm/nd-core.h')
| -rw-r--r-- | drivers/nvdimm/nd-core.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/nvdimm/nd-core.h b/drivers/nvdimm/nd-core.h index e1970c71ad1c..159aed532042 100644 --- a/drivers/nvdimm/nd-core.h +++ b/drivers/nvdimm/nd-core.h @@ -80,4 +80,13 @@ struct resource *nsblk_add_resource(struct nd_region *nd_region, int nvdimm_num_label_slots(struct nvdimm_drvdata *ndd); void get_ndd(struct nvdimm_drvdata *ndd); resource_size_t __nvdimm_namespace_capacity(struct nd_namespace_common *ndns); +void nd_detach_ndns(struct device *dev, struct nd_namespace_common **_ndns); +void __nd_detach_ndns(struct device *dev, struct nd_namespace_common **_ndns); +bool nd_attach_ndns(struct device *dev, struct nd_namespace_common *attach, + struct nd_namespace_common **_ndns); +bool __nd_attach_ndns(struct device *dev, struct nd_namespace_common *attach, + struct nd_namespace_common **_ndns); +ssize_t nd_namespace_store(struct device *dev, + struct nd_namespace_common **_ndns, const char *buf, + size_t len); #endif /* __ND_CORE_H__ */ |