diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-22 12:53:06 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-22 12:53:06 -0700 |
commit | df36b439c5fedefe013d4449cb6a50d15e2f4d70 (patch) | |
tree | 537c58db778cbf11b74e28091f89d1b8139fb84d /include/linux | |
parent | a9b011f5ac57cbaedb32a8149f3d39d7b2c1f0e0 (diff) | |
parent | e9f029855865e917821ef6034b31e340a4cfc815 (diff) | |
download | op-kernel-dev-df36b439c5fedefe013d4449cb6a50d15e2f4d70.zip op-kernel-dev-df36b439c5fedefe013d4449cb6a50d15e2f4d70.tar.gz |
Merge branch 'for-2.6.31' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
* 'for-2.6.31' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: (128 commits)
nfs41: sunrpc: xprt_alloc_bc_request() should not use spin_lock_bh()
nfs41: Move initialization of nfs4_opendata seq_res to nfs4_init_opendata_res
nfs: remove unnecessary NFS_INO_INVALID_ACL checks
NFS: More "sloppy" parsing problems
NFS: Invalid mount option values should always fail, even with "sloppy"
NFS: Remove unused XDR decoder functions
NFS: Update MNT and MNT3 reply decoding functions
NFS: add XDR decoder for mountd version 3 auth-flavor lists
NFS: add new file handle decoders to in-kernel mountd client
NFS: Add separate mountd status code decoders for each mountd version
NFS: remove unused function in fs/nfs/mount_clnt.c
NFS: Use xdr_stream-based XDR encoder for MNT's dirpath argument
NFS: Clean up MNT program definitions
lockd: Don't bother with RPC ping for NSM upcalls
lockd: Update NSM state from SM_MON replies
NFS: Fix false error return from nfs_callback_up() if ipv6.ko is not available
NFS: Return error code from nfs_callback_up() to user space
NFS: Do not display the setting of the "intr" mount option
NFS: add support for splice writes
nfs41: Backchannel: CB_SEQUENCE validation
...
Diffstat (limited to 'include/linux')
-rw-r--r-- | include/linux/lockd/lockd.h | 2 | ||||
-rw-r--r-- | include/linux/nfs.h | 5 | ||||
-rw-r--r-- | include/linux/nfs2.h | 7 | ||||
-rw-r--r-- | include/linux/nfs3.h | 5 | ||||
-rw-r--r-- | include/linux/nfs4.h | 18 | ||||
-rw-r--r-- | include/linux/nfs_fs_sb.h | 67 | ||||
-rw-r--r-- | include/linux/nfs_xdr.h | 171 | ||||
-rw-r--r-- | include/linux/nfsd/state.h | 1 | ||||
-rw-r--r-- | include/linux/sunrpc/bc_xprt.h | 49 | ||||
-rw-r--r-- | include/linux/sunrpc/clnt.h | 1 | ||||
-rw-r--r-- | include/linux/sunrpc/sched.h | 3 | ||||
-rw-r--r-- | include/linux/sunrpc/svc.h | 11 | ||||
-rw-r--r-- | include/linux/sunrpc/svcsock.h | 2 | ||||
-rw-r--r-- | include/linux/sunrpc/xprt.h | 38 |
14 files changed, 362 insertions, 18 deletions
diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h index 51855df..c325b18 100644 --- a/include/linux/lockd/lockd.h +++ b/include/linux/lockd/lockd.h @@ -195,7 +195,7 @@ extern struct svc_procedure nlmsvc_procedures4[]; extern int nlmsvc_grace_period; extern unsigned long nlmsvc_timeout; extern int nsm_use_hostnames; -extern int nsm_local_state; +extern u32 nsm_local_state; /* * Lockd client functions diff --git a/include/linux/nfs.h b/include/linux/nfs.h index 214d499..f387919 100644 --- a/include/linux/nfs.h +++ b/include/linux/nfs.h @@ -25,8 +25,9 @@ #define NFSMODE_SOCK 0140000 #define NFSMODE_FIFO 0010000 -#define NFS_MNT_PROGRAM 100005 -#define NFS_MNT_PORT 627 +#define NFS_MNT_PROGRAM 100005 +#define NFS_MNT_VERSION 1 +#define NFS_MNT3_VERSION 3 /* * NFS stats. The good thing with these values is that NFSv3 errors are diff --git a/include/linux/nfs2.h b/include/linux/nfs2.h index 0ed9517..fde24b3 100644 --- a/include/linux/nfs2.h +++ b/include/linux/nfs2.h @@ -64,11 +64,4 @@ struct nfs2_fh { #define NFSPROC_READDIR 16 #define NFSPROC_STATFS 17 -#define NFS_MNT_PROGRAM 100005 -#define NFS_MNT_VERSION 1 -#define MNTPROC_NULL 0 -#define MNTPROC_MNT 1 -#define MNTPROC_UMNT 3 -#define MNTPROC_UMNTALL 4 - #endif /* _LINUX_NFS2_H */ diff --git a/include/linux/nfs3.h b/include/linux/nfs3.h index 539f3b5..ac33806 100644 --- a/include/linux/nfs3.h +++ b/include/linux/nfs3.h @@ -88,12 +88,7 @@ struct nfs3_fh { #define NFS3PROC_PATHCONF 20 #define NFS3PROC_COMMIT 21 -#define NFS_MNT3_PROGRAM 100005 #define NFS_MNT3_VERSION 3 -#define MOUNTPROC3_NULL 0 -#define MOUNTPROC3_MNT 1 -#define MOUNTPROC3_UMNT 3 -#define MOUNTPROC3_UMNTALL 4 #if defined(__KERNEL__) diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h index e3f0cbc..bd2eba5 100644 --- a/include/linux/nfs4.h +++ b/include/linux/nfs4.h @@ -21,6 +21,7 @@ #define NFS4_FHSIZE 128 #define NFS4_MAXPATHLEN PATH_MAX #define NFS4_MAXNAMLEN NAME_MAX +#define NFS4_OPAQUE_LIMIT 1024 #define NFS4_MAX_SESSIONID_LEN 16 #define NFS4_ACCESS_READ 0x0001 @@ -130,6 +131,16 @@ #define NFS4_MAX_UINT64 (~(u64)0) +/* An NFS4 sessions server must support at least NFS4_MAX_OPS operations. + * If a compound requires more operations, adjust NFS4_MAX_OPS accordingly. + */ +#define NFS4_MAX_OPS 8 + +/* Our NFS4 client back channel server only wants the cb_sequene and the + * actual operation per compound + */ +#define NFS4_MAX_BACK_CHANNEL_OPS 2 + enum nfs4_acl_whotype { NFS4_ACL_WHO_NAMED = 0, NFS4_ACL_WHO_OWNER, @@ -462,6 +473,13 @@ enum lock_type4 { #define NFSPROC4_NULL 0 #define NFSPROC4_COMPOUND 1 #define NFS4_MINOR_VERSION 0 + +#if defined(CONFIG_NFS_V4_1) +#define NFS4_MAX_MINOR_VERSION 1 +#else +#define NFS4_MAX_MINOR_VERSION 0 +#endif /* CONFIG_NFS_V4_1 */ + #define NFS4_DEBUG 1 /* Index of predefined Linux client operations */ diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h index 6ad7594..19fe15d 100644 --- a/include/linux/nfs_fs_sb.h +++ b/include/linux/nfs_fs_sb.h @@ -4,11 +4,17 @@ #include <linux/list.h> #include <linux/backing-dev.h> #include <linux/wait.h> +#include <linux/nfs_xdr.h> +#include <linux/sunrpc/xprt.h> #include <asm/atomic.h> +struct nfs4_session; struct nfs_iostats; struct nlm_host; +struct nfs4_sequence_args; +struct nfs4_sequence_res; +struct nfs_server; /* * The nfs_client identifies our client state to the server. @@ -18,6 +24,7 @@ struct nfs_client { int cl_cons_state; /* current construction state (-ve: init error) */ #define NFS_CS_READY 0 /* ready to be used */ #define NFS_CS_INITING 1 /* busy initialising */ +#define NFS_CS_SESSION_INITING 2 /* busy initialising session */ unsigned long cl_res_state; /* NFS resources state */ #define NFS_CS_CALLBACK 1 /* - callback started */ #define NFS_CS_IDMAP 2 /* - idmap started */ @@ -32,6 +39,7 @@ struct nfs_client { const struct nfs_rpc_ops *rpc_ops; /* NFS protocol vector */ int cl_proto; /* Network transport protocol */ + u32 cl_minorversion;/* NFSv4 minorversion */ struct rpc_cred *cl_machine_cred; #ifdef CONFIG_NFS_V4 @@ -63,7 +71,22 @@ struct nfs_client { */ char cl_ipaddr[48]; unsigned char cl_id_uniquifier; -#endif + int (* cl_call_sync)(struct nfs_server *server, + struct rpc_message *msg, + struct nfs4_sequence_args *args, + struct nfs4_sequence_res *res, + int cache_reply); +#endif /* CONFIG_NFS_V4 */ + +#ifdef CONFIG_NFS_V4_1 + /* clientid returned from EXCHANGE_ID, used by session operations */ + u64 cl_ex_clid; + /* The sequence id to use for the next CREATE_SESSION */ + u32 cl_seqid; + /* The flags used for obtaining the clientid during EXCHANGE_ID */ + u32 cl_exchange_flags; + struct nfs4_session *cl_session; /* sharred session */ +#endif /* CONFIG_NFS_V4_1 */ #ifdef CONFIG_NFS_FSCACHE struct fscache_cookie *fscache; /* client index cache cookie */ @@ -145,4 +168,46 @@ struct nfs_server { #define NFS_CAP_ACLS (1U << 3) #define NFS_CAP_ATOMIC_OPEN (1U << 4) + +/* maximum number of slots to use */ +#define NFS4_MAX_SLOT_TABLE RPC_MAX_SLOT_TABLE + +#if defined(CONFIG_NFS_V4_1) + +/* Sessions */ +#define SLOT_TABLE_SZ (NFS4_MAX_SLOT_TABLE/(8*sizeof(long))) +struct nfs4_slot_table { + struct nfs4_slot *slots; /* seqid per slot */ + unsigned long used_slots[SLOT_TABLE_SZ]; /* used/unused bitmap */ + spinlock_t slot_tbl_lock; + struct rpc_wait_queue slot_tbl_waitq; /* allocators may wait here */ + int max_slots; /* # slots in table */ + int highest_used_slotid; /* sent to server on each SEQ. + * op for dynamic resizing */ +}; + +static inline int slot_idx(struct nfs4_slot_table *tbl, struct nfs4_slot *sp) +{ + return sp - tbl->slots; +} + +/* + * Session related parameters + */ +struct nfs4_session { + struct nfs4_sessionid sess_id; + u32 flags; + unsigned long session_state; + u32 hash_alg; + u32 ssv_len; + + /* The fore and back channel */ + struct nfs4_channel_attrs fc_attrs; + struct nfs4_slot_table fc_slot_table; + struct nfs4_channel_attrs bc_attrs; + struct nfs4_slot_table bc_slot_table; + struct nfs_client *clp; +}; + +#endif /* CONFIG_NFS_V4_1 */ #endif diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index b89c34e..62f63fb 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -145,6 +145,44 @@ struct nfs4_change_info { }; struct nfs_seqid; + +/* nfs41 sessions channel attributes */ +struct nfs4_channel_attrs { + u32 headerpadsz; + u32 max_rqst_sz; + u32 max_resp_sz; + u32 max_resp_sz_cached; + u32 max_ops; + u32 max_reqs; +}; + +/* nfs41 sessions slot seqid */ +struct nfs4_slot { + u32 seq_nr; +}; + +struct nfs4_sequence_args { + struct nfs4_session *sa_session; + u8 sa_slotid; + u8 sa_cache_this; +}; + +struct nfs4_sequence_res { + struct nfs4_session *sr_session; + u8 sr_slotid; /* slot used to send request */ + unsigned long sr_renewal_time; + int sr_status; /* sequence operation status */ +}; + +struct nfs4_get_lease_time_args { + struct nfs4_sequence_args la_seq_args; +}; + +struct nfs4_get_lease_time_res { + struct nfs_fsinfo *lr_fsinfo; + struct nfs4_sequence_res lr_seq_res; +}; + /* * Arguments to the open call. */ @@ -165,6 +203,7 @@ struct nfs_openargs { const struct nfs_server *server; /* Needed for ID mapping */ const u32 * bitmask; __u32 claim; + struct nfs4_sequence_args seq_args; }; struct nfs_openres { @@ -181,6 +220,7 @@ struct nfs_openres { __u32 do_recall; __u64 maxsize; __u32 attrset[NFS4_BITMAP_SIZE]; + struct nfs4_sequence_res seq_res; }; /* @@ -206,6 +246,7 @@ struct nfs_closeargs { struct nfs_seqid * seqid; fmode_t fmode; const u32 * bitmask; + struct nfs4_sequence_args seq_args; }; struct nfs_closeres { @@ -213,6 +254,7 @@ struct nfs_closeres { struct nfs_fattr * fattr; struct nfs_seqid * seqid; const struct nfs_server *server; + struct nfs4_sequence_res seq_res; }; /* * * Arguments to the lock,lockt, and locku call. @@ -233,12 +275,14 @@ struct nfs_lock_args { unsigned char block : 1; unsigned char reclaim : 1; unsigned char new_lock_owner : 1; + struct nfs4_sequence_args seq_args; }; struct nfs_lock_res { nfs4_stateid stateid; struct nfs_seqid * lock_seqid; struct nfs_seqid * open_seqid; + struct nfs4_sequence_res seq_res; }; struct nfs_locku_args { @@ -246,32 +290,38 @@ struct nfs_locku_args { struct file_lock * fl; struct nfs_seqid * seqid; nfs4_stateid * stateid; + struct nfs4_sequence_args seq_args; }; struct nfs_locku_res { nfs4_stateid stateid; struct nfs_seqid * seqid; + struct nfs4_sequence_res seq_res; }; struct nfs_lockt_args { struct nfs_fh * fh; struct file_lock * fl; struct nfs_lowner lock_owner; + struct nfs4_sequence_args seq_args; }; struct nfs_lockt_res { struct file_lock * denied; /* LOCK, LOCKT failed */ + struct nfs4_sequence_res seq_res; }; struct nfs4_delegreturnargs { const struct nfs_fh *fhandle; const nfs4_stateid *stateid; const u32 * bitmask; + struct nfs4_sequence_args seq_args; }; struct nfs4_delegreturnres { struct nfs_fattr * fattr; const struct nfs_server *server; + struct nfs4_sequence_res seq_res; }; /* @@ -284,12 +334,14 @@ struct nfs_readargs { __u32 count; unsigned int pgbase; struct page ** pages; + struct nfs4_sequence_args seq_args; }; struct nfs_readres { struct nfs_fattr * fattr; __u32 count; int eof; + struct nfs4_sequence_res seq_res; }; /* @@ -304,6 +356,7 @@ struct nfs_writeargs { unsigned int pgbase; struct page ** pages; const u32 * bitmask; + struct nfs4_sequence_args seq_args; }; struct nfs_writeverf { @@ -316,6 +369,7 @@ struct nfs_writeres { struct nfs_writeverf * verf; __u32 count; const struct nfs_server *server; + struct nfs4_sequence_res seq_res; }; /* @@ -325,12 +379,14 @@ struct nfs_removeargs { const struct nfs_fh *fh; struct qstr name; const u32 * bitmask; + struct nfs4_sequence_args seq_args; }; struct nfs_removeres { const struct nfs_server *server; struct nfs4_change_info cinfo; struct nfs_fattr dir_attr; + struct nfs4_sequence_res seq_res; }; /* @@ -383,6 +439,7 @@ struct nfs_setattrargs { struct iattr * iap; const struct nfs_server * server; /* Needed for name mapping */ const u32 * bitmask; + struct nfs4_sequence_args seq_args; }; struct nfs_setaclargs { @@ -390,6 +447,11 @@ struct nfs_setaclargs { size_t acl_len; unsigned int acl_pgbase; struct page ** acl_pages; + struct nfs4_sequence_args seq_args; +}; + +struct nfs_setaclres { + struct nfs4_sequence_res seq_res; }; struct nfs_getaclargs { @@ -397,11 +459,18 @@ struct nfs_getaclargs { size_t acl_len; unsigned int acl_pgbase; struct page ** acl_pages; + struct nfs4_sequence_args seq_args; +}; + +struct nfs_getaclres { + size_t acl_len; + struct nfs4_sequence_res seq_res; }; struct nfs_setattrres { struct nfs_fattr * fattr; const struct nfs_server * server; + struct nfs4_sequence_res seq_res; }; struct nfs_linkargs { @@ -583,6 +652,7 @@ struct nfs4_accessargs { const struct nfs_fh * fh; const u32 * bitmask; u32 access; + struct nfs4_sequence_args seq_args; }; struct nfs4_accessres { @@ -590,6 +660,7 @@ struct nfs4_accessres { struct nfs_fattr * fattr; u32 supported; u32 access; + struct nfs4_sequence_res seq_res; }; struct nfs4_create_arg { @@ -609,6 +680,7 @@ struct nfs4_create_arg { const struct iattr * attrs; const struct nfs_fh * dir_fh; const u32 * bitmask; + struct nfs4_sequence_args seq_args; }; struct nfs4_create_res { @@ -617,21 +689,30 @@ struct nfs4_create_res { struct nfs_fattr * fattr; struct nfs4_change_info dir_cinfo; struct nfs_fattr * dir_fattr; + struct nfs4_sequence_res seq_res; }; struct nfs4_fsinfo_arg { const struct nfs_fh * fh; const u32 * bitmask; + struct nfs4_sequence_args seq_args; +}; + +struct nfs4_fsinfo_res { + struct nfs_fsinfo *fsinfo; + struct nfs4_sequence_res seq_res; }; struct nfs4_getattr_arg { const struct nfs_fh * fh; const u32 * bitmask; + struct nfs4_sequence_args seq_args; }; struct nfs4_getattr_res { const struct nfs_server * server; struct nfs_fattr * fattr; + struct nfs4_sequence_res seq_res; }; struct nfs4_link_arg { @@ -639,6 +720,7 @@ struct nfs4_link_arg { const struct nfs_fh * dir_fh; const struct qstr * name; const u32 * bitmask; + struct nfs4_sequence_args seq_args; }; struct nfs4_link_res { @@ -646,6 +728,7 @@ struct nfs4_link_res { struct nfs_fattr * fattr; struct nfs4_change_info cinfo; struct nfs_fattr * dir_attr; + struct nfs4_sequence_res seq_res; }; @@ -653,21 +736,30 @@ struct nfs4_lookup_arg { const struct nfs_fh * dir_fh; const struct qstr * name; const u32 * bitmask; + struct nfs4_sequence_args seq_args; }; struct nfs4_lookup_res { const struct nfs_server * server; struct nfs_fattr * fattr; struct nfs_fh * fh; + struct nfs4_sequence_res seq_res; }; struct nfs4_lookup_root_arg { const u32 * bitmask; + struct nfs4_sequence_args seq_args; }; struct nfs4_pathconf_arg { const struct nfs_fh * fh; const u32 * bitmask; + struct nfs4_sequence_args seq_args; +}; + +struct nfs4_pathconf_res { + struct nfs_pathconf *pathconf; + struct nfs4_sequence_res seq_res; }; struct nfs4_readdir_arg { @@ -678,11 +770,13 @@ struct nfs4_readdir_arg { struct page ** pages; /* zero-copy data */ unsigned int pgbase; /* zero-copy data */ const u32 * bitmask; + struct nfs4_sequence_args seq_args; }; struct nfs4_readdir_res { nfs4_verifier verifier; unsigned int pgbase; + struct nfs4_sequence_res seq_res; }; struct nfs4_readlink { @@ -690,6 +784,11 @@ struct nfs4_readlink { unsigned int pgbase; unsigned int pglen; /* zero-copy data */ struct page ** pages; /* zero-copy data */ + struct nfs4_sequence_args seq_args; +}; + +struct nfs4_readlink_res { + struct nfs4_sequence_res seq_res; }; struct nfs4_rename_arg { @@ -698,6 +797,7 @@ struct nfs4_rename_arg { const struct qstr * old_name; const struct qstr * new_name; const u32 * bitmask; + struct nfs4_sequence_args seq_args; }; struct nfs4_rename_res { @@ -706,6 +806,7 @@ struct nfs4_rename_res { struct nfs_fattr * old_fattr; struct nfs4_change_info new_cinfo; struct nfs_fattr * new_fattr; + struct nfs4_sequence_res seq_res; }; #define NFS4_SETCLIENTID_NAMELEN (127) @@ -724,6 +825,17 @@ struct nfs4_setclientid { struct nfs4_statfs_arg { const struct nfs_fh * fh; const u32 * bitmask; + struct nfs4_sequence_args seq_args; +}; + +struct nfs4_statfs_res { + struct nfs_fsstat *fsstat; + struct nfs4_sequence_res seq_res; +}; + +struct nfs4_server_caps_arg { + struct nfs_fh *fhandle; + struct nfs4_sequence_args seq_args; }; struct nfs4_server_caps_res { @@ -731,6 +843,7 @@ struct nfs4_server_caps_res { u32 acl_bitmask; u32 has_links; u32 has_symlinks; + struct nfs4_sequence_res seq_res; }; struct nfs4_string { @@ -765,10 +878,68 @@ struct nfs4_fs_locations_arg { const struct qstr *name; struct page *page; const u32 *bitmask; + struct nfs4_sequence_args seq_args; +}; + +struct nfs4_fs_locations_res { + struct nfs4_fs_locations *fs_locations; + struct nfs4_sequence_res seq_res; }; #endif /* CONFIG_NFS_V4 */ +struct nfstime4 { + u64 seconds; + u32 nseconds; +}; + +#ifdef CONFIG_NFS_V4_1 +struct nfs_impl_id4 { + u32 domain_len; + char *domain; + u32 name_len; + char *name; + struct nfstime4 date; +}; + +#define NFS4_EXCHANGE_ID_LEN (48) +struct nfs41_exchange_id_args { + struct nfs_client *client; + nfs4_verifier *verifier; + unsigned int id_len; + char id[NFS4_EXCHANGE_ID_LEN]; + u32 flags; +}; + +struct server_owner { + uint64_t minor_id; + uint32_t major_id_sz; + char major_id[NFS4_OPAQUE_LIMIT]; +}; + +struct server_scope { + uint32_t server_scope_sz; + char server_scope[NFS4_OPAQUE_LIMIT]; +}; + +struct nfs41_exchange_id_res { + struct nfs_client *client; + u32 flags; +}; + +struct nfs41_create_session_args { + struct nfs_client *client; + uint32_t flags; + uint32_t cb_program; + struct nfs4_channel_attrs fc_attrs; /* Fore Channel */ + struct nfs4_channel_attrs bc_attrs; /* Back Channel */ +}; + +struct nfs41_create_session_res { + struct nfs_client *client; +}; +#endif /* CONFIG_NFS_V4_1 */ + struct nfs_page; #define NFS_PAGEVEC_SIZE (8U) diff --git a/include/linux/nfsd/state.h b/include/linux/nfsd/state.h index 4d61c87..7ef4b7a 100644 --- a/include/linux/nfsd/state.h +++ b/include/linux/nfsd/state.h @@ -41,7 +41,6 @@ #include <linux/kref.h> #include <linux/sunrpc/clnt.h> -#define NFS4_OPAQUE_LIMIT 1024 typedef struct { u32 cl_boot; u32 cl_id; diff --git a/include/linux/sunrpc/bc_xprt.h b/include/linux/sunrpc/bc_xprt.h new file mode 100644 index 0000000..6508f0d --- /dev/null +++ b/include/linux/sunrpc/bc_xprt.h @@ -0,0 +1,49 @@ +/****************************************************************************** + +(c) 2008 NetApp. All Rights Reserved. + +NetApp provides this source code under the GPL v2 License. +The GPL v2 license is available at +http://opensource.org/licenses/gpl-license.php. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR +CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, +EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, +PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR +PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF +LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING +NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +******************************************************************************/ + +/* + * Functions to create and manage the backchannel + */ + +#ifndef _LINUX_SUNRPC_BC_XPRT_H +#define _LINUX_SUNRPC_BC_XPRT_H + +#include <linux/sunrpc/svcsock.h> +#include <linux/sunrpc/xprt.h> +#include <linux/sunrpc/sched.h> + +#ifdef CONFIG_NFS_V4_1 +struct rpc_rqst *xprt_alloc_bc_request(struct rpc_xprt *xprt); +void xprt_free_bc_request(struct rpc_rqst *req); +int xprt_setup_backchannel(struct rpc_xprt *, unsigned int min_reqs); +void xprt_destroy_backchannel(struct rpc_xprt *, int max_reqs); +void bc_release_request(struct rpc_task *); +int bc_send(struct rpc_rqst *req); +#else /* CONFIG_NFS_V4_1 */ +static inline int xprt_setup_backchannel(struct rpc_xprt *xprt, + unsigned int min_reqs) +{ + return 0; +} +#endif /* CONFIG_NFS_V4_1 */ +#endif /* _LINUX_SUNRPC_BC_XPRT_H */ + diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h index c39a210..37881f1a 100644 --- a/include/linux/sunrpc/clnt.h +++ b/include/linux/sunrpc/clnt.h @@ -143,6 +143,7 @@ int rpc_call_sync(struct rpc_clnt *clnt, const struct rpc_message *msg, int flags); struct rpc_task *rpc_call_null(struct rpc_clnt *clnt, struct rpc_cred *cred, int flags); +void rpc_restart_call_prepare(struct rpc_task *); void rpc_restart_call(struct rpc_task *); void rpc_setbufsize(struct rpc_clnt *, unsigned int, unsigned int); size_t rpc_max_payload(struct rpc_clnt *); diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h index 64981a2..4010977 100644 --- a/include/linux/sunrpc/sched.h +++ b/include/linux/sunrpc/sched.h @@ -210,6 +210,8 @@ struct rpc_wait_queue { */ struct rpc_task *rpc_new_task(const struct rpc_task_setup *); struct rpc_task *rpc_run_task(const struct rpc_task_setup *); +struct rpc_task *rpc_run_bc_task(struct rpc_rqst *req, + const struct rpc_call_ops *ops); void rpc_put_task(struct rpc_task *); void rpc_exit_task(struct rpc_task *); void rpc_release_calldata(const struct rpc_call_ops *, void *); @@ -237,6 +239,7 @@ void rpc_show_tasks(void); int rpc_init_mempool(void); void rpc_destroy_mempool(void); extern struct workqueue_struct *rpciod_workqueue; +void rpc_prepare_task(struct rpc_task *task); static inline void rpc_exit(struct rpc_task *task, int status) { diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h index 2a30775..ea80096 100644 --- a/include/linux/sunrpc/svc.h +++ b/include/linux/sunrpc/svc.h @@ -96,6 +96,15 @@ struct svc_serv { svc_thread_fn sv_function; /* main function for threads */ unsigned int sv_drc_max_pages; /* Total pages for DRC */ unsigned int sv_drc_pages_used;/* DRC pages used */ +#if defined(CONFIG_NFS_V4_1) + struct list_head sv_cb_list; /* queue for callback requests + * that arrive over the same + * connection */ + spinlock_t sv_cb_lock; /* protects the svc_cb_list */ + wait_queue_head_t sv_cb_waitq; /* sleep here if there are no + * entries in the svc_cb_list */ + struct svc_xprt *bc_xprt; +#endif /* CONFIG_NFS_V4_1 */ }; /* @@ -411,6 +420,8 @@ int svc_set_num_threads(struct svc_serv *, struct svc_pool *, int); int svc_pool_stats_open(struct svc_serv *serv, struct file *file); void svc_destroy(struct svc_serv *); int svc_process(struct svc_rqst *); +int bc_svc_process(struct svc_serv *, struct rpc_rqst *, + struct svc_rqst *); int svc_register(const struct svc_serv *, const int, const unsigned short, const unsigned short); diff --git a/include/linux/sunrpc/svcsock.h b/include/linux/sunrpc/svcsock.h index 483e103..6bb1ec4 100644 --- a/include/linux/sunrpc/svcsock.h +++ b/include/linux/sunrpc/svcsock.h @@ -42,6 +42,8 @@ int svc_sock_names(char *buf, struct svc_serv *serv, char *toclose); int svc_addsock(struct svc_serv *serv, int fd, char *name_return); void svc_init_xprt_sock(void); void svc_cleanup_xprt_sock(void); +struct svc_xprt *svc_sock_create(struct svc_serv *serv, int prot); +void svc_sock_destroy(struct svc_xprt *); /* * svc_makesock socket characteristics diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h index 08afe43..1175d58 100644 --- a/include/linux/sunrpc/xprt.h +++ b/include/linux/sunrpc/xprt.h @@ -67,7 +67,8 @@ struct rpc_rqst { struct rpc_task * rq_task; /* RPC task data */ __be32 rq_xid; /* request XID */ int rq_cong; /* has incremented xprt->cong */ - int rq_received; /* receive completed */ + int rq_reply_bytes_recvd; /* number of reply */ + /* bytes received */ u32 rq_seqno; /* gss seq no. used on req. */ int rq_enc_pages_num; struct page **rq_enc_pages; /* scratch pages for use by @@ -97,6 +98,12 @@ struct rpc_rqst { unsigned long rq_xtime; /* when transmitted */ int rq_ntrans; + +#if defined(CONFIG_NFS_V4_1) + struct list_head rq_bc_list; /* Callback service list */ + unsigned long rq_bc_pa_state; /* Backchannel prealloc state */ + struct list_head rq_bc_pa_list; /* Backchannel prealloc list */ +#endif /* CONFIG_NFS_V4_1 */ }; #define rq_svec rq_snd_buf.head #define rq_slen rq_snd_buf.len @@ -174,6 +181,15 @@ struct rpc_xprt { spinlock_t reserve_lock; /* lock slot table */ u32 xid; /* Next XID value to use */ struct rpc_task * snd_task; /* Task blocked in send */ +#if defined(CONFIG_NFS_V4_1) + struct svc_serv *bc_serv; /* The RPC service which will */ + /* process the callback */ + unsigned int bc_alloc_count; /* Total number of preallocs */ + spinlock_t bc_pa_lock; /* Protects the preallocated + * items */ + struct list_head bc_pa_list; /* List of preallocated + * backchannel rpc_rqst's */ +#endif /* CONFIG_NFS_V4_1 */ struct list_head recv; struct { @@ -192,6 +208,26 @@ struct rpc_xprt { const char *address_strings[RPC_DISPLAY_MAX]; }; +#if defined(CONFIG_NFS_V4_1) +/* + * Backchannel flags + */ +#define RPC_BC_PA_IN_USE 0x0001 /* Preallocated backchannel */ + /* buffer in use */ +#endif /* CONFIG_NFS_V4_1 */ + +#if defined(CONFIG_NFS_V4_1) +static inline int bc_prealloc(struct rpc_rqst *req) +{ + return test_bit(RPC_BC_PA_IN_USE, &req->rq_bc_pa_state); +} +#else +static inline int bc_prealloc(struct rpc_rqst *req) +{ + return 0; +} +#endif /* CONFIG_NFS_V4_1 */ + struct xprt_create { int ident; /* XPRT_TRANSPORT identifier */ struct sockaddr * srcaddr; /* optional local address */ |