24 lines
912 B
Markdown
24 lines
912 B
Markdown
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SPDK Porting Guide
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==================
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SPDK is ported to new environments by implementing the nvme_impl
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interface. The nvme_impl interface provides APIs for the driver
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to allocate physically contiguous and pinned memory, perform PCI
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operations (config cycles and mapping BARs), virtual to physical
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address translation and allocating per I/O data structures.
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SPDK includes a default implementation of the nvme_impl API based
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on the Data Plane Development Kit ([DPDK](dpdk.org)) and
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libpciaccess. This DPDK implementation can be found in
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lib/nvme/nvme_impl.h. DPDK is currently supported on Linux and
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FreeBSD only.
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Users who want to use SPDK on other operating system, or in
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userspace driver frameworks other than DPDK, will need to implement
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a new version of nvme_impl.h. The new nvme_impl.h can be
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integrated into the SPDK build by updating the following line
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in CONFIG:
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CONFIG_NVME_IMPL=nvme_impl.h
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