X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=lib%2Fdpif.h;h=0a41b77b9e881d2f7f18641982d0082258bd6593;hb=704a1e09e9b31ea39ca41c028c7c6aaf2482283a;hp=1e5412a4d481b336146b006dab49d9e2657598d4;hpb=b566902b599073806d69b722cabb3d242f50d1fa;p=sliver-openvswitch.git diff --git a/lib/dpif.h b/lib/dpif.h index 1e5412a4d..0a41b77b9 100644 --- a/lib/dpif.h +++ b/lib/dpif.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2008, 2009 Nicira Networks. + * Copyright (c) 2008, 2009, 2010 Nicira Networks. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -18,32 +18,42 @@ #ifndef DPIF_H #define DPIF_H 1 -/* Operations for the datapath running in the local kernel. The interface can - * generalize to multiple types of local datapaths, but the implementation only - * supports the openflow kernel module. */ - -#include "openvswitch/datapath-protocol.h" #include #include #include +#include "openflow/openflow.h" +#include "openvswitch/datapath-protocol.h" +#include "util.h" +#ifdef __cplusplus +extern "C" { +#endif + +struct dpif; +struct netdev; +struct nlattr; struct ofpbuf; struct svec; +struct dpif_class; -/* A datapath interface. Opaque. */ -struct dpif { - unsigned int minor; /* For use in error messages. */ - int fd; -}; +void dp_run(void); +void dp_wait(void); + +int dp_register_provider(const struct dpif_class *); +int dp_unregister_provider(const char *type); +void dp_enumerate_types(struct svec *types); -int dp_enumerate(struct svec *); +int dp_enumerate_names(const char *type, struct svec *names); +void dp_parse_name(const char *datapath_name, char **name, char **type); -int dpif_open(const char *name, struct dpif *); -int dpif_create(const char *name, struct dpif *); +int dpif_open(const char *name, const char *type, struct dpif **); +int dpif_create(const char *name, const char *type, struct dpif **); +int dpif_create_and_open(const char *name, const char *type, struct dpif **); void dpif_close(struct dpif *); -static inline unsigned int dpif_id(const struct dpif *dpif); -int dpif_get_name(struct dpif *, char *name, size_t name_size); +const char *dpif_name(const struct dpif *); +const char *dpif_base_name(const struct dpif *); +int dpif_get_all_names(const struct dpif *, struct svec *); int dpif_delete(struct dpif *); @@ -51,55 +61,61 @@ int dpif_get_dp_stats(const struct dpif *, struct odp_stats *); int dpif_get_drop_frags(const struct dpif *, bool *drop_frags); int dpif_set_drop_frags(struct dpif *, bool drop_frags); -int dpif_get_listen_mask(const struct dpif *, int *listen_mask); -int dpif_set_listen_mask(struct dpif *, int listen_mask); -int dpif_purge(struct dpif *); - -int dpif_port_add(struct dpif *, const char *devname, uint16_t port_no, - uint16_t flags); +int dpif_port_add(struct dpif *, struct netdev *, uint16_t *port_nop); int dpif_port_del(struct dpif *, uint16_t port_no); int dpif_port_query_by_number(const struct dpif *, uint16_t port_no, struct odp_port *); int dpif_port_query_by_name(const struct dpif *, const char *devname, struct odp_port *); +int dpif_port_get_name(struct dpif *, uint16_t port_no, + char *name, size_t name_size); int dpif_port_list(const struct dpif *, struct odp_port **, size_t *n_ports); -int dpif_port_group_set(struct dpif *, uint16_t group, - const uint16_t ports[], size_t n_ports); -int dpif_port_group_get(const struct dpif *, uint16_t group, - uint16_t ports[], size_t n_ports, size_t *n_out); +int dpif_port_poll(const struct dpif *, char **devnamep); +void dpif_port_poll_wait(const struct dpif *); int dpif_flow_flush(struct dpif *); int dpif_flow_put(struct dpif *, struct odp_flow_put *); int dpif_flow_del(struct dpif *, struct odp_flow *); int dpif_flow_get(const struct dpif *, struct odp_flow *); int dpif_flow_get_multiple(const struct dpif *, struct odp_flow[], size_t n); -int dpif_flow_list(const struct dpif *, struct odp_flow[], size_t n, - size_t *n_out); -int dpif_flow_list_all(const struct dpif *, - struct odp_flow **flowsp, size_t *np); - -int dpif_execute(struct dpif *, uint16_t in_port, - const union odp_action[], size_t n_actions, - const struct ofpbuf *); +struct dpif_flow_dump { + const struct dpif *dpif; + int error; + void *state; +}; +void dpif_flow_dump_start(struct dpif_flow_dump *, const struct dpif *); +bool dpif_flow_dump_next(struct dpif_flow_dump *, struct odp_flow *); +int dpif_flow_dump_done(struct dpif_flow_dump *); + +int dpif_execute(struct dpif *, const struct nlattr *actions, + size_t actions_len, const struct ofpbuf *); + +/* Minimum number of bytes of headroom for a packet returned by dpif_recv() + * member function. This headroom allows "struct odp_msg" to be replaced by + * "struct ofp_packet_in" without copying the buffer. */ +#define DPIF_RECV_MSG_PADDING \ + ROUND_UP(sizeof(struct ofp_packet_in) - sizeof(struct odp_msg), 8) +BUILD_ASSERT_DECL(sizeof(struct ofp_packet_in) > sizeof(struct odp_msg)); +BUILD_ASSERT_DECL(DPIF_RECV_MSG_PADDING % 8 == 0); + +int dpif_recv_get_mask(const struct dpif *, int *listen_mask); +int dpif_recv_set_mask(struct dpif *, int listen_mask); +int dpif_get_sflow_probability(const struct dpif *, uint32_t *probability); +int dpif_set_sflow_probability(struct dpif *, uint32_t probability); int dpif_recv(struct dpif *, struct ofpbuf **); +int dpif_recv_purge(struct dpif *); void dpif_recv_wait(struct dpif *); -static inline unsigned int -dpif_id(const struct dpif *dpif) -{ - return dpif->minor; -} - -struct dpifmon; - -int dpifmon_create(const char *datapath_name, struct dpifmon **); -void dpifmon_destroy(struct dpifmon *); +void dpif_get_netflow_ids(const struct dpif *, + uint8_t *engine_type, uint8_t *engine_id); -int dpifmon_poll(struct dpifmon *, char **devnamep); +int dpif_queue_to_priority(const struct dpif *, uint32_t queue_id, + uint32_t *priority); -void dpifmon_run(struct dpifmon *); -void dpifmon_wait(struct dpifmon *); +#ifdef __cplusplus +} +#endif #endif /* dpif.h */