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authorLinus Torvalds <torvalds@linux-foundation.org>2008-07-20 21:21:46 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-20 21:21:46 -0700
commit14b395e35d1afdd8019d11b92e28041fad591b71 (patch)
treecff7ba9bed7a38300b19a5bacc632979d64fd9c8 /include/linux/sunrpc
parent734b397cd14f3340394a8dd3266bec97d01f034b (diff)
parent5108b27651727b5aba0826e8fd7be71b42428701 (diff)
Merge branch 'for-2.6.27' of git://linux-nfs.org/~bfields/linux
* 'for-2.6.27' of git://linux-nfs.org/~bfields/linux: (51 commits) nfsd: nfs4xdr.c do-while is not a compound statement nfsd: Use C99 initializers in fs/nfsd/nfs4xdr.c lockd: Pass "struct sockaddr *" to new failover-by-IP function lockd: get host reference in nlmsvc_create_block() instead of callers lockd: minor svclock.c style fixes lockd: eliminate duplicate nlmsvc_lookup_host call from nlmsvc_lock lockd: eliminate duplicate nlmsvc_lookup_host call from nlmsvc_testlock lockd: nlm_release_host() checks for NULL, caller needn't file lock: reorder struct file_lock to save space on 64 bit builds nfsd: take file and mnt write in nfs4_upgrade_open nfsd: document open share bit tracking nfsd: tabulate nfs4 xdr encoding functions nfsd: dprint operation names svcrdma: Change WR context get/put to use the kmem cache svcrdma: Create a kmem cache for the WR contexts svcrdma: Add flush_scheduled_work to module exit function svcrdma: Limit ORD based on client's advertised IRD svcrdma: Remove unused wait q from svcrdma_xprt structure svcrdma: Remove unneeded spin locks from __svc_rdma_free svcrdma: Add dma map count and WARN_ON ...
Diffstat (limited to 'include/linux/sunrpc')
-rw-r--r--include/linux/sunrpc/gss_krb5.h3
-rw-r--r--include/linux/sunrpc/svc.h7
-rw-r--r--include/linux/sunrpc/svc_rdma.h36
3 files changed, 35 insertions, 11 deletions
diff --git a/include/linux/sunrpc/gss_krb5.h b/include/linux/sunrpc/gss_krb5.h
index a10f1fb0bf7..e7bbdba474d 100644
--- a/include/linux/sunrpc/gss_krb5.h
+++ b/include/linux/sunrpc/gss_krb5.h
@@ -51,6 +51,9 @@ struct krb5_ctx {
extern spinlock_t krb5_seq_lock;
+/* The length of the Kerberos GSS token header */
+#define GSS_KRB5_TOK_HDR_LEN (16)
+
#define KG_TOK_MIC_MSG 0x0101
#define KG_TOK_WRAP_MSG 0x0201
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 4b54c5fdcfd..dc69068d94c 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -22,7 +22,7 @@
/*
* This is the RPC server thread function prototype
*/
-typedef void (*svc_thread_fn)(struct svc_rqst *);
+typedef int (*svc_thread_fn)(void *);
/*
*
@@ -80,7 +80,6 @@ struct svc_serv {
struct module * sv_module; /* optional module to count when
* adding threads */
svc_thread_fn sv_function; /* main function for threads */
- int sv_kill_signal; /* signal to kill threads */
};
/*
@@ -388,8 +387,8 @@ struct svc_rqst *svc_prepare_thread(struct svc_serv *serv,
struct svc_pool *pool);
void svc_exit_thread(struct svc_rqst *);
struct svc_serv * svc_create_pooled(struct svc_program *, unsigned int,
- void (*shutdown)(struct svc_serv*),
- svc_thread_fn, int sig, struct module *);
+ void (*shutdown)(struct svc_serv*), svc_thread_fn,
+ struct module *);
int svc_set_num_threads(struct svc_serv *, struct svc_pool *, int);
void svc_destroy(struct svc_serv *);
int svc_process(struct svc_rqst *);
diff --git a/include/linux/sunrpc/svc_rdma.h b/include/linux/sunrpc/svc_rdma.h
index 05eb4664d0d..ef2e3a20bf3 100644
--- a/include/linux/sunrpc/svc_rdma.h
+++ b/include/linux/sunrpc/svc_rdma.h
@@ -72,7 +72,7 @@ extern atomic_t rdma_stat_sq_prod;
*/
struct svc_rdma_op_ctxt {
struct svc_rdma_op_ctxt *read_hdr;
- struct list_head free_list;
+ int hdr_count;
struct xdr_buf arg;
struct list_head dto_q;
enum ib_wr_opcode wr_op;
@@ -86,6 +86,31 @@ struct svc_rdma_op_ctxt {
struct page *pages[RPCSVC_MAXPAGES];
};
+/*
+ * NFS_ requests are mapped on the client side by the chunk lists in
+ * the RPCRDMA header. During the fetching of the RPC from the client
+ * and the writing of the reply to the client, the memory in the
+ * client and the memory in the server must be mapped as contiguous
+ * vaddr/len for access by the hardware. These data strucures keep
+ * these mappings.
+ *
+ * For an RDMA_WRITE, the 'sge' maps the RPC REPLY. For RDMA_READ, the
+ * 'sge' in the svc_rdma_req_map maps the server side RPC reply and the
+ * 'ch' field maps the read-list of the RPCRDMA header to the 'sge'
+ * mapping of the reply.
+ */
+struct svc_rdma_chunk_sge {
+ int start; /* sge no for this chunk */
+ int count; /* sge count for this chunk */
+};
+struct svc_rdma_req_map {
+ unsigned long count;
+ union {
+ struct kvec sge[RPCSVC_MAXPAGES];
+ struct svc_rdma_chunk_sge ch[RPCSVC_MAXPAGES];
+ };
+};
+
#define RDMACTXT_F_LAST_CTXT 2
struct svcxprt_rdma {
@@ -93,7 +118,6 @@ struct svcxprt_rdma {
struct rdma_cm_id *sc_cm_id; /* RDMA connection id */
struct list_head sc_accept_q; /* Conn. waiting accept */
int sc_ord; /* RDMA read limit */
- wait_queue_head_t sc_read_wait;
int sc_max_sge;
int sc_sq_depth; /* Depth of SQ */
@@ -104,12 +128,8 @@ struct svcxprt_rdma {
struct ib_pd *sc_pd;
+ atomic_t sc_dma_used;
atomic_t sc_ctxt_used;
- struct list_head sc_ctxt_free;
- int sc_ctxt_cnt;
- int sc_ctxt_bump;
- int sc_ctxt_max;
- spinlock_t sc_ctxt_lock;
struct list_head sc_rq_dto_q;
spinlock_t sc_rq_dto_lock;
struct ib_qp *sc_qp;
@@ -173,6 +193,8 @@ extern int svc_rdma_post_recv(struct svcxprt_rdma *);
extern int svc_rdma_create_listen(struct svc_serv *, int, struct sockaddr *);
extern struct svc_rdma_op_ctxt *svc_rdma_get_context(struct svcxprt_rdma *);
extern void svc_rdma_put_context(struct svc_rdma_op_ctxt *, int);
+extern struct svc_rdma_req_map *svc_rdma_get_req_map(void);
+extern void svc_rdma_put_req_map(struct svc_rdma_req_map *);
extern void svc_sq_reap(struct svcxprt_rdma *);
extern void svc_rq_reap(struct svcxprt_rdma *);
extern struct svc_xprt_class svc_rdma_class;