nfsd: add SCSI layout support

[cascardo/linux.git] / fs / nfsd / blocklayoutxdr.h

diff --git a/fs/nfsd/blocklayoutxdr.h b/fs/nfsd/blocklayoutxdr.h
index 6de925f..397bc75 100644 (file)
--- a/fs/nfsd/blocklayoutxdr.h
+++ b/fs/nfsd/blocklayoutxdr.h
@@ -15,6 +15,11 @@ struct pnfs_block_extent {
        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.
@@ -29,6 +34,13 @@ struct pnfs_block_volume {
                        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;
        };
 };
 
@@ -43,5 +55,7 @@ __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 */