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Merge tag 'nfs-rdma-for-5.1-1' of git://git.linux-nfs.org/projects/anna/linux-nfs

Browse Source 
NFSoRDMA client updates for 5.1

New features:
- Convert rpc auth layer to use xdr_streams
- Config option to disable insecure enctypes
- Reduce size of RPC receive buffers

Bugfixes and cleanups:
- Fix sparse warnings
- Check inline size before providing a write chunk
- Reduce the receive doorbell rate
- Various tracepoint improvements

[Trond: Fix up merge conflicts]
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Trond Myklebust
2019-02-25 08:39:26 -05:00
parent 5085607d20 2c94b8eca1
commit 06b5fc3ad9
47 changed files with 2078 additions and 1581 deletions
Download Patch File Download Diff File Expand all files Collapse all files

42
include/linux/sunrpc/auth.h
View File

@@ -74,14 +74,12 @@ struct rpc_cred_cache;
struct rpc_authops;
struct rpc_auth {
unsigned int au_cslack; /* call cred size estimate */
/* guess at number of u32's auth adds before
* reply data; normally the verifier size: */
unsigned int au_rslack;
/* for gss, used to calculate au_rslack: */
unsigned int au_verfsize;
unsigned int au_rslack; /* reply cred size estimate */
unsigned int au_verfsize; /* size of reply verifier */
unsigned int au_ralign; /* words before UL header */
unsigned int au_flags; /* various flags */
const struct rpc_authops *au_ops; /* operations */
unsigned int au_flags;
const struct rpc_authops *au_ops;
rpc_authflavor_t au_flavor; /* pseudoflavor (note may
* differ from the flavor in
* au_ops->au_flavor in gss
@@ -131,13 +129,15 @@ struct rpc_credops {
void (*crdestroy)(struct rpc_cred *);
int (*crmatch)(struct auth_cred *, struct rpc_cred *, int);
__be32 * (*crmarshal)(struct rpc_task *, __be32 *);
int (*crmarshal)(struct rpc_task *task,
struct xdr_stream *xdr);
int (*crrefresh)(struct rpc_task *);
__be32 * (*crvalidate)(struct rpc_task *, __be32 *);
int (*crwrap_req)(struct rpc_task *, kxdreproc_t,
void *, __be32 *, void *);
int (*crunwrap_resp)(struct rpc_task *, kxdrdproc_t,
void *, __be32 *, void *);
int (*crvalidate)(struct rpc_task *task,
struct xdr_stream *xdr);
int (*crwrap_req)(struct rpc_task *task,
struct xdr_stream *xdr);
int (*crunwrap_resp)(struct rpc_task *task,
struct xdr_stream *xdr);
int (*crkey_timeout)(struct rpc_cred *);
char * (*crstringify_acceptor)(struct rpc_cred *);
bool (*crneed_reencode)(struct rpc_task *);
@@ -165,10 +165,18 @@ struct rpc_cred * rpcauth_lookup_credcache(struct rpc_auth *, struct auth_cred *
void rpcauth_init_cred(struct rpc_cred *, const struct auth_cred *, struct rpc_auth *, const struct rpc_credops *);
struct rpc_cred * rpcauth_lookupcred(struct rpc_auth *, int);
void put_rpccred(struct rpc_cred *);
__be32 * rpcauth_marshcred(struct rpc_task *, __be32 *);
__be32 * rpcauth_checkverf(struct rpc_task *, __be32 *);
int rpcauth_wrap_req(struct rpc_task *task, kxdreproc_t encode, void *rqstp, __be32 *data, void *obj);
int rpcauth_unwrap_resp(struct rpc_task *task, kxdrdproc_t decode, void *rqstp, __be32 *data, void *obj);
int rpcauth_marshcred(struct rpc_task *task,
struct xdr_stream *xdr);
int rpcauth_checkverf(struct rpc_task *task,
struct xdr_stream *xdr);
int rpcauth_wrap_req_encode(struct rpc_task *task,
struct xdr_stream *xdr);
int rpcauth_wrap_req(struct rpc_task *task,
struct xdr_stream *xdr);
int rpcauth_unwrap_resp_decode(struct rpc_task *task,
struct xdr_stream *xdr);
int rpcauth_unwrap_resp(struct rpc_task *task,
struct xdr_stream *xdr);
bool rpcauth_xmit_need_reencode(struct rpc_task *task);
int rpcauth_refreshcred(struct rpc_task *);
void rpcauth_invalcred(struct rpc_task *);

3
include/linux/sunrpc/clnt.h
View File

@@ -169,6 +169,9 @@ int rpcb_v4_register(struct net *net, const u32 program,
const char *netid);
void rpcb_getport_async(struct rpc_task *);
void rpc_prepare_reply_pages(struct rpc_rqst *req, struct page **pages,
unsigned int base, unsigned int len,
unsigned int hdrsize);
void rpc_call_start(struct rpc_task *);
int rpc_call_async(struct rpc_clnt *clnt,
const struct rpc_message *msg, int flags,

42
include/linux/sunrpc/gss_krb5_enctypes.h
View File

@@ -1,4 +1,44 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Dumb way to share this static piece of information with nfsd
* Define the string that exports the set of kernel-supported
* Kerberos enctypes. This list is sent via upcall to gssd, and
* is also exposed via the nfsd /proc API. The consumers generally
* treat this as an ordered list, where the first item in the list
* is the most preferred.
*/
#ifndef _LINUX_SUNRPC_GSS_KRB5_ENCTYPES_H
#define _LINUX_SUNRPC_GSS_KRB5_ENCTYPES_H
#ifdef CONFIG_SUNRPC_DISABLE_INSECURE_ENCTYPES
/*
* NB: This list includes encryption types that were deprecated
* by RFC 8429 (DES3_CBC_SHA1 and ARCFOUR_HMAC).
*
* ENCTYPE_AES256_CTS_HMAC_SHA1_96
* ENCTYPE_AES128_CTS_HMAC_SHA1_96
* ENCTYPE_DES3_CBC_SHA1
* ENCTYPE_ARCFOUR_HMAC
*/
#define KRB5_SUPPORTED_ENCTYPES "18,17,16,23"
#else /* CONFIG_SUNRPC_DISABLE_INSECURE_ENCTYPES */
/*
* NB: This list includes encryption types that were deprecated
* by RFC 8429 and RFC 6649.
*
* ENCTYPE_AES256_CTS_HMAC_SHA1_96
* ENCTYPE_AES128_CTS_HMAC_SHA1_96
* ENCTYPE_DES3_CBC_SHA1
* ENCTYPE_ARCFOUR_HMAC
* ENCTYPE_DES_CBC_MD5
* ENCTYPE_DES_CBC_CRC
* ENCTYPE_DES_CBC_MD4
*/
#define KRB5_SUPPORTED_ENCTYPES "18,17,16,23,3,1,2"
#endif /* CONFIG_SUNRPC_DISABLE_INSECURE_ENCTYPES */
#endif /* _LINUX_SUNRPC_GSS_KRB5_ENCTYPES_H */

23
include/linux/sunrpc/xdr.h
View File

@@ -87,6 +87,16 @@ xdr_buf_init(struct xdr_buf *buf, void *start, size_t len)
#define xdr_one cpu_to_be32(1)
#define xdr_two cpu_to_be32(2)
#define rpc_auth_null cpu_to_be32(RPC_AUTH_NULL)
#define rpc_auth_unix cpu_to_be32(RPC_AUTH_UNIX)
#define rpc_auth_short cpu_to_be32(RPC_AUTH_SHORT)
#define rpc_auth_gss cpu_to_be32(RPC_AUTH_GSS)
#define rpc_call cpu_to_be32(RPC_CALL)
#define rpc_reply cpu_to_be32(RPC_REPLY)
#define rpc_msg_accepted cpu_to_be32(RPC_MSG_ACCEPTED)
#define rpc_success cpu_to_be32(RPC_SUCCESS)
#define rpc_prog_unavail cpu_to_be32(RPC_PROG_UNAVAIL)
#define rpc_prog_mismatch cpu_to_be32(RPC_PROG_MISMATCH)
@@ -95,6 +105,9 @@ xdr_buf_init(struct xdr_buf *buf, void *start, size_t len)
#define rpc_system_err cpu_to_be32(RPC_SYSTEM_ERR)
#define rpc_drop_reply cpu_to_be32(RPC_DROP_REPLY)
#define rpc_mismatch cpu_to_be32(RPC_MISMATCH)
#define rpc_auth_error cpu_to_be32(RPC_AUTH_ERROR)
#define rpc_auth_ok cpu_to_be32(RPC_AUTH_OK)
#define rpc_autherr_badcred cpu_to_be32(RPC_AUTH_BADCRED)
#define rpc_autherr_rejectedcred cpu_to_be32(RPC_AUTH_REJECTEDCRED)
@@ -103,7 +116,6 @@ xdr_buf_init(struct xdr_buf *buf, void *start, size_t len)
#define rpc_autherr_tooweak cpu_to_be32(RPC_AUTH_TOOWEAK)
#define rpcsec_gsserr_credproblem cpu_to_be32(RPCSEC_GSS_CREDPROBLEM)
#define rpcsec_gsserr_ctxproblem cpu_to_be32(RPCSEC_GSS_CTXPROBLEM)
#define rpc_autherr_oldseqnum cpu_to_be32(101)
/*
* Miscellaneous XDR helper functions
@@ -167,7 +179,6 @@ xdr_adjust_iovec(struct kvec *iov, __be32 *p)
extern void xdr_shift_buf(struct xdr_buf *, size_t);
extern void xdr_buf_from_iov(struct kvec *, struct xdr_buf *);
extern int xdr_buf_subsegment(struct xdr_buf *, struct xdr_buf *, unsigned int, unsigned int);
extern void xdr_buf_trim(struct xdr_buf *, unsigned int);
extern int xdr_buf_read_netobj(struct xdr_buf *, struct xdr_netobj *, unsigned int);
extern int read_bytes_from_xdr_buf(struct xdr_buf *, unsigned int, void *, unsigned int);
extern int write_bytes_to_xdr_buf(struct xdr_buf *, unsigned int, void *, unsigned int);
@@ -217,6 +228,8 @@ struct xdr_stream {
struct kvec scratch; /* Scratch buffer */
struct page **page_ptr; /* pointer to the current page */
unsigned int nwords; /* Remaining decode buffer length */
struct rpc_rqst *rqst; /* For debugging */
};
/*
@@ -227,7 +240,8 @@ typedef void (*kxdreproc_t)(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
typedef int (*kxdrdproc_t)(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
void *obj);
extern void xdr_init_encode(struct xdr_stream *xdr, struct xdr_buf *buf, __be32 *p);
extern void xdr_init_encode(struct xdr_stream *xdr, struct xdr_buf *buf,
__be32 *p, struct rpc_rqst *rqst);
extern __be32 *xdr_reserve_space(struct xdr_stream *xdr, size_t nbytes);
extern void xdr_commit_encode(struct xdr_stream *xdr);
extern void xdr_truncate_encode(struct xdr_stream *xdr, size_t len);
@@ -235,7 +249,8 @@ extern int xdr_restrict_buflen(struct xdr_stream *xdr, int newbuflen);
extern void xdr_write_pages(struct xdr_stream *xdr, struct page **pages,
unsigned int base, unsigned int len);
extern unsigned int xdr_stream_pos(const struct xdr_stream *xdr);
extern void xdr_init_decode(struct xdr_stream *xdr, struct xdr_buf *buf, __be32 *p);
extern void xdr_init_decode(struct xdr_stream *xdr, struct xdr_buf *buf,
__be32 *p, struct rpc_rqst *rqst);
extern void xdr_init_decode_pages(struct xdr_stream *xdr, struct xdr_buf *buf,
struct page **pages, unsigned int len);
extern void xdr_set_scratch_buffer(struct xdr_stream *xdr, void *buf, size_t buflen);

7
include/linux/sunrpc/xprt.h
View File

@@ -196,8 +196,6 @@ struct rpc_xprt {
size_t max_payload; /* largest RPC payload size,
in bytes */
unsigned int tsh_size; /* size of transport specific
header */
struct rpc_wait_queue binding; /* requests waiting on rpcbind */
struct rpc_wait_queue sending; /* requests waiting to send */
@@ -362,11 +360,6 @@ struct rpc_xprt * xprt_alloc(struct net *net, size_t size,
unsigned int max_req);
void xprt_free(struct rpc_xprt *);
static inline __be32 *xprt_skip_transport_header(struct rpc_xprt *xprt, __be32 *p)
{
return p + xprt->tsh_size;
}
static inline int
xprt_enable_swap(struct rpc_xprt *xprt)
{