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nfsd: update documentation for pNFS support 

Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Christoph Hellwig 2014-09-25 11:28:02 +02:00
parent c5c707f96f
commit 18d1aef89e
1 changed files with 8 additions and 15 deletions
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23
Documentation/filesystems/nfs/nfs41-server.txt
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@ -24,11 +24,6 @@ focuses on the mandatory-to-implement NFSv4.1 Sessions, providing
"exactly once" semantics and better control and throttling of the "exactly once" semantics and better control and throttling of the
resources allocated for each client. resources allocated for each client.
Other NFSv4.1 features, Parallel NFS operations in particular,
are still under development out of tree.
See http://wiki.linux-nfs.org/wiki/index.php/PNFS_prototype_design
for more information.
The table below, taken from the NFSv4.1 document, lists The table below, taken from the NFSv4.1 document, lists
the operations that are mandatory to implement (REQ), optional the operations that are mandatory to implement (REQ), optional
(OPT), and NFSv4.0 operations that are required not to implement (MNI) (OPT), and NFSv4.0 operations that are required not to implement (MNI)
@ -43,9 +38,7 @@ The OPTIONAL features identified and their abbreviations are as follows:
The following abbreviations indicate the linux server implementation status. The following abbreviations indicate the linux server implementation status.
I Implemented NFSv4.1 operations. I Implemented NFSv4.1 operations.
NS Not Supported. NS Not Supported.
NS* unimplemented optional feature. NS* Unimplemented optional feature.
P pNFS features implemented out of tree.
PNS pNFS features that are not supported yet (out of tree).
Operations Operations
@ -70,13 +63,13 @@ I | DESTROY_SESSION | REQ | | Section 18.37 |
I | EXCHANGE_ID | REQ | | Section 18.35 | I | EXCHANGE_ID | REQ | | Section 18.35 |
I | FREE_STATEID | REQ | | Section 18.38 | I | FREE_STATEID | REQ | | Section 18.38 |
| GETATTR | REQ | | Section 18.7 | | GETATTR | REQ | | Section 18.7 |
P | GETDEVICEINFO | OPT | pNFS (REQ) | Section 18.40 | I | GETDEVICEINFO | OPT | pNFS (REQ) | Section 18.40 |
P | GETDEVICELIST | OPT | pNFS (OPT) | Section 18.41 | NS*| GETDEVICELIST | OPT | pNFS (OPT) | Section 18.41 |
| GETFH | REQ | | Section 18.8 | | GETFH | REQ | | Section 18.8 |
NS*| GET_DIR_DELEGATION | OPT | DDELG (REQ) | Section 18.39 | NS*| GET_DIR_DELEGATION | OPT | DDELG (REQ) | Section 18.39 |
P | LAYOUTCOMMIT | OPT | pNFS (REQ) | Section 18.42 | I | LAYOUTCOMMIT | OPT | pNFS (REQ) | Section 18.42 |
P | LAYOUTGET | OPT | pNFS (REQ) | Section 18.43 | I | LAYOUTGET | OPT | pNFS (REQ) | Section 18.43 |
P | LAYOUTRETURN | OPT | pNFS (REQ) | Section 18.44 | I | LAYOUTRETURN | OPT | pNFS (REQ) | Section 18.44 |
| LINK | OPT | | Section 18.9 | | LINK | OPT | | Section 18.9 |
| LOCK | REQ | | Section 18.10 | | LOCK | REQ | | Section 18.10 |
| LOCKT | REQ | | Section 18.11 | | LOCKT | REQ | | Section 18.11 |
@ -122,9 +115,9 @@ Callback Operations
| | MNI | or OPT) | | | | MNI | or OPT) | |
+-------------------------+-----------+-------------+---------------+ +-------------------------+-----------+-------------+---------------+
| CB_GETATTR | OPT | FDELG (REQ) | Section 20.1 | | CB_GETATTR | OPT | FDELG (REQ) | Section 20.1 |
P | CB_LAYOUTRECALL | OPT | pNFS (REQ) | Section 20.3 | I | CB_LAYOUTRECALL | OPT | pNFS (REQ) | Section 20.3 |
NS*| CB_NOTIFY | OPT | DDELG (REQ) | Section 20.4 | NS*| CB_NOTIFY | OPT | DDELG (REQ) | Section 20.4 |
P | CB_NOTIFY_DEVICEID | OPT | pNFS (OPT) | Section 20.12 | NS*| CB_NOTIFY_DEVICEID | OPT | pNFS (OPT) | Section 20.12 |
NS*| CB_NOTIFY_LOCK | OPT | | Section 20.11 | NS*| CB_NOTIFY_LOCK | OPT | | Section 20.11 |
NS*| CB_PUSH_DELEG | OPT | FDELG (OPT) | Section 20.5 | NS*| CB_PUSH_DELEG | OPT | FDELG (OPT) | Section 20.5 |
| CB_RECALL | OPT | FDELG, | Section 20.2 | | CB_RECALL | OPT | FDELG, | Section 20.2 |