1#ifndef _NFSD_BLOCKLAYOUTXDR_H 2#define _NFSD_BLOCKLAYOUTXDR_H 1 3 4#include <linux/blkdev.h> 5#include "xdr4.h" 6 7struct iomap; 8struct xdr_stream; 9 10struct pnfs_block_extent { 11 struct nfsd4_deviceid vol_id; 12 u64 foff; 13 u64 len; 14 u64 soff; 15 enum pnfs_block_extent_state es; 16}; 17 18struct pnfs_block_range { 19 u64 foff; 20 u64 len; 21}; 22 23/* 24 * Random upper cap for the uuid length to avoid unbounded allocation. 25 * Not actually limited by the protocol. 26 */ 27#define PNFS_BLOCK_UUID_LEN 128 28 29struct pnfs_block_volume { 30 enum pnfs_block_volume_type type; 31 union { 32 struct { 33 u64 offset; 34 u32 sig_len; 35 u8 sig[PNFS_BLOCK_UUID_LEN]; 36 } simple; 37 struct { 38 enum scsi_code_set code_set; 39 enum scsi_designator_type designator_type; 40 int designator_len; 41 u8 designator[256]; 42 u64 pr_key; 43 } scsi; 44 }; 45}; 46 47struct pnfs_block_deviceaddr { 48 u32 nr_volumes; 49 struct pnfs_block_volume volumes[]; 50}; 51 52__be32 nfsd4_block_encode_getdeviceinfo(struct xdr_stream *xdr, 53 struct nfsd4_getdeviceinfo *gdp); 54__be32 nfsd4_block_encode_layoutget(struct xdr_stream *xdr, 55 struct nfsd4_layoutget *lgp); 56int nfsd4_block_decode_layoutupdate(__be32 *p, u32 len, struct iomap **iomapp, 57 u32 block_size); 58int nfsd4_scsi_decode_layoutupdate(__be32 *p, u32 len, struct iomap **iomapp, 59 u32 block_size); 60 61#endif /* _NFSD_BLOCKLAYOUTXDR_H */ 62