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Add the concept of a fragment list for non-volatile stored options.

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This commit is contained in:
Michael Brown
2006-12-04 21:46:13 +00:00
parent f944737045
commit cc9bcb99a0
3 changed files with 135 additions and 39 deletions
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28
src/include/gpxe/nvo.h
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@@ -7,15 +7,37 @@
*
*/
#include <stdint.h>
struct nvs_device;
struct dhcp_option_block;
struct nvs_options {
/**
* A fragment of a non-volatile storage device used for stored options
*/
struct nvo_fragment {
/** Starting address of fragment within NVS device */
unsigned int address;
/** Length of fragment */
size_t len;
};
/**
* A block of non-volatile stored options
*/
struct nvo_block {
/** Underlying non-volatile storage device */
struct nvs_device *nvs;
/** List of option-containing fragments
*
* The list is terminated by a fragment with a length of zero.
*/
struct nvo_fragment *fragments;
/** DHCP options block */
struct dhcp_option_block *options;
};
extern int nvo_register ( struct nvs_options *nvo );
extern void nvo_unregister ( struct nvs_options *nvo );
extern int nvo_register ( struct nvo_block *nvo );
extern void nvo_unregister ( struct nvo_block *nvo );
#endif /* _GPXE_NVO_H */