diff options
Diffstat (limited to 'include/linux/sunrpc')
| -rw-r--r-- | include/linux/sunrpc/svc.h | 44 | ||||
| -rw-r--r-- | include/linux/sunrpc/svc_rdma.h | 6 | ||||
| -rw-r--r-- | include/linux/sunrpc/svc_xprt.h | 1 | ||||
| -rw-r--r-- | include/linux/sunrpc/svcsock.h | 4 |
4 files changed, 34 insertions, 21 deletions
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h index 74658cca0f38..48666b83fe68 100644 --- a/include/linux/sunrpc/svc.h +++ b/include/linux/sunrpc/svc.h @@ -119,14 +119,14 @@ void svc_destroy(struct svc_serv **svcp); * Linux limit; someone who cares more about NFS/UDP performance * can test a larger number. * - * For TCP transports we have more freedom. A size of 1MB is - * chosen to match the client limit. Other OSes are known to - * have larger limits, but those numbers are probably beyond - * the point of diminishing returns. + * For non-UDP transports we have more freedom. A size of 4MB is + * chosen to accommodate clients that support larger I/O sizes. */ -#define RPCSVC_MAXPAYLOAD (1*1024*1024u) -#define RPCSVC_MAXPAYLOAD_TCP RPCSVC_MAXPAYLOAD -#define RPCSVC_MAXPAYLOAD_UDP (32*1024u) +enum { + RPCSVC_MAXPAYLOAD = 4 * 1024 * 1024, + RPCSVC_MAXPAYLOAD_TCP = RPCSVC_MAXPAYLOAD, + RPCSVC_MAXPAYLOAD_UDP = 32 * 1024, +}; extern u32 svc_max_payload(const struct svc_rqst *rqstp); @@ -150,14 +150,24 @@ extern u32 svc_max_payload(const struct svc_rqst *rqstp); * list. xdr_buf.tail points to the end of the first page. * This assumes that the non-page part of an rpc reply will fit * in a page - NFSd ensures this. lockd also has no trouble. + */ + +/** + * svc_serv_maxpages - maximum count of pages needed for one RPC message + * @serv: RPC service context + * + * Returns a count of pages or vectors that can hold the maximum + * size RPC message for @serv. * - * Each request/reply pair can have at most one "payload", plus two pages, - * one for the request, and one for the reply. - * We using ->sendfile to return read data, we might need one extra page - * if the request is not page-aligned. So add another '1'. + * Each request/reply pair can have at most one "payload", plus two + * pages, one for the request, and one for the reply. + * nfsd_splice_actor() might need an extra page when a READ payload + * is not page-aligned. */ -#define RPCSVC_MAXPAGES ((RPCSVC_MAXPAYLOAD+PAGE_SIZE-1)/PAGE_SIZE \ - + 2 + 1) +static inline unsigned long svc_serv_maxpages(const struct svc_serv *serv) +{ + return DIV_ROUND_UP(serv->sv_max_mesg, PAGE_SIZE) + 2 + 1; +} /* * The context of a single thread, including the request currently being @@ -188,14 +198,14 @@ struct svc_rqst { struct xdr_stream rq_res_stream; struct page *rq_scratch_page; struct xdr_buf rq_res; - struct page *rq_pages[RPCSVC_MAXPAGES + 1]; + unsigned long rq_maxpages; /* num of entries in rq_pages */ + struct page * *rq_pages; struct page * *rq_respages; /* points into rq_pages */ struct page * *rq_next_page; /* next reply page to use */ struct page * *rq_page_end; /* one past the last page */ struct folio_batch rq_fbatch; - struct kvec rq_vec[RPCSVC_MAXPAGES]; /* generally useful.. */ - struct bio_vec rq_bvec[RPCSVC_MAXPAGES]; + struct bio_vec *rq_bvec; __be32 rq_xid; /* transmission id */ u32 rq_prog; /* program number */ @@ -452,8 +462,6 @@ const char * svc_proc_name(const struct svc_rqst *rqstp); int svc_encode_result_payload(struct svc_rqst *rqstp, unsigned int offset, unsigned int length); -unsigned int svc_fill_write_vector(struct svc_rqst *rqstp, - struct xdr_buf *payload); char *svc_fill_symlink_pathname(struct svc_rqst *rqstp, struct kvec *first, void *p, size_t total); diff --git a/include/linux/sunrpc/svc_rdma.h b/include/linux/sunrpc/svc_rdma.h index 619fc0bd837a..22704c2e5b9b 100644 --- a/include/linux/sunrpc/svc_rdma.h +++ b/include/linux/sunrpc/svc_rdma.h @@ -202,7 +202,8 @@ struct svc_rdma_recv_ctxt { struct svc_rdma_pcl rc_reply_pcl; unsigned int rc_page_count; - struct page *rc_pages[RPCSVC_MAXPAGES]; + unsigned long rc_maxpages; + struct page *rc_pages[] __counted_by(rc_maxpages); }; /* @@ -244,7 +245,8 @@ struct svc_rdma_send_ctxt { void *sc_xprt_buf; int sc_page_count; int sc_cur_sge_no; - struct page *sc_pages[RPCSVC_MAXPAGES]; + unsigned long sc_maxpages; + struct page **sc_pages; struct ib_sge sc_sges[]; }; diff --git a/include/linux/sunrpc/svc_xprt.h b/include/linux/sunrpc/svc_xprt.h index 72be60952579..369a89aea186 100644 --- a/include/linux/sunrpc/svc_xprt.h +++ b/include/linux/sunrpc/svc_xprt.h @@ -53,6 +53,7 @@ struct svc_xprt { struct svc_xprt_class *xpt_class; const struct svc_xprt_ops *xpt_ops; struct kref xpt_ref; + ktime_t xpt_qtime; struct list_head xpt_list; struct lwq_node xpt_ready; unsigned long xpt_flags; diff --git a/include/linux/sunrpc/svcsock.h b/include/linux/sunrpc/svcsock.h index bf45d9e8492a..963bbe251e52 100644 --- a/include/linux/sunrpc/svcsock.h +++ b/include/linux/sunrpc/svcsock.h @@ -40,7 +40,9 @@ struct svc_sock { struct completion sk_handshake_done; - struct page * sk_pages[RPCSVC_MAXPAGES]; /* received data */ + /* received data */ + unsigned long sk_maxpages; + struct page * sk_pages[] __counted_by(sk_maxpages); }; static inline u32 svc_sock_reclen(struct svc_sock *svsk) |