/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _NFSD_BLOCKLAYOUTXDR_H #define _NFSD_BLOCKLAYOUTXDR_H 1 #include <linux/blkdev.h> #include "xdr4.h" struct iomap; struct xdr_stream; struct pnfs_block_extent { struct nfsd4_deviceid vol_id; u64 foff; u64 len; u64 soff; enum pnfs_block_extent_state es; }; struct pnfs_block_range { u64 foff; u64 len; }; /* * Random upper cap for the uuid length to avoid unbounded allocation. * Not actually limited by the protocol. */ #define PNFS_BLOCK_UUID_LEN 128 struct pnfs_block_volume { enum pnfs_block_volume_type type; union { struct { u64 offset; u32 sig_len; u8 sig[PNFS_BLOCK_UUID_LEN]; } simple; struct { enum scsi_code_set code_set; enum scsi_designator_type designator_type; int designator_len; u8 designator[256]; u64 pr_key; } scsi; }; }; struct pnfs_block_deviceaddr { u32 nr_volumes; struct pnfs_block_volume volumes[]; }; __be32 nfsd4_block_encode_getdeviceinfo(struct xdr_stream *xdr, struct nfsd4_getdeviceinfo *gdp); __be32 nfsd4_block_encode_layoutget(struct xdr_stream *xdr, struct nfsd4_layoutget *lgp); int nfsd4_block_decode_layoutupdate(__be32 *p, u32 len, struct iomap **iomapp, u32 block_size); int nfsd4_scsi_decode_layoutupdate(__be32 *p, u32 len, struct iomap **iomapp, u32 block_size); #endif /* _NFSD_BLOCKLAYOUTXDR_H */