#define DPIF_PROVIDER_H 1
/* Provider interface to dpifs, which provide an interface to an Open vSwitch
- * datapath. */
+ * datapath. A datapath is a collection of physical or virtual ports that are
+ * exposed over OpenFlow as a single switch. Datapaths and the collections of
+ * ports that they contain may be fixed or dynamic. */
#include <assert.h>
#include "openflow/openflow.h"
* value other than EAGAIN. */
void (*port_poll_wait)(const struct dpif *dpif);
- /* Stores in 'ports' the port numbers of up to 'n' ports that belong to
- * 'group' in 'dpif'. Returns the number of ports in 'group' (not the
- * number stored), if successful, otherwise a negative errno value. */
- int (*port_group_get)(const struct dpif *dpif, int group,
- uint16_t ports[], int n);
-
- /* Changes port group 'group' in 'dpif' to consist of the 'n' ports whose
- * numbers are given in 'ports'.
- *
- * Use the get_stats member function to obtain the number of supported port
- * groups. */
- int (*port_group_set)(struct dpif *dpif, int group,
- const uint16_t ports[], int n);
-
/* For each flow 'flow' in the 'n' flows in 'flows':
*
* - If a flow matching 'flow->key' exists in 'dpif':
int (*flow_list)(const struct dpif *dpif, struct odp_flow flows[], int n);
/* Performs the 'n_actions' actions in 'actions' on the Ethernet frame
- * specified in 'packet'.
- *
- * Pretends that the frame was originally received on the port numbered
- * 'in_port'. This affects only ODPAT_OUTPUT_GROUP actions, which will not
- * send a packet out their input port. Specify the number of an unused
- * port (e.g. UINT16_MAX is currently always unused) to avoid this
- * behavior. */
- int (*execute)(struct dpif *dpif, uint16_t in_port,
+ * specified in 'packet'. */
+ int (*execute)(struct dpif *dpif,
const union odp_action actions[], int n_actions,
const struct ofpbuf *packet);
* packet. */
int (*set_sflow_probability)(struct dpif *dpif, uint32_t probability);
+ /* Translates OpenFlow queue ID 'queue_id' (in host byte order) into a
+ * priority value for use in the ODPAT_SET_PRIORITY action in
+ * '*priority'. */
+ int (*queue_to_priority)(const struct dpif *dpif, uint32_t queue_id,
+ uint32_t *priority);
+
/* Attempts to receive a message from 'dpif'. If successful, stores the
* message into '*packetp'. The message, if one is received, must begin
* with 'struct odp_msg' as a header, and must have at least
void (*recv_wait)(struct dpif *dpif);
};
-/* Minimum number of bytes of headroom for a packet returned by the 'recv'
- * member function (see above). This headroom allows "struct odp_msg" to be
- * replaced by "struct ofp_packet_in" without copying the buffer. */
-#define DPIF_RECV_MSG_PADDING (sizeof(struct ofp_packet_in) \
- - sizeof(struct odp_msg))
-BUILD_ASSERT_DECL(sizeof(struct ofp_packet_in) > sizeof(struct odp_msg));
-BUILD_ASSERT_DECL(DPIF_RECV_MSG_PADDING % 4 == 0);
-
extern const struct dpif_class dpif_linux_class;
extern const struct dpif_class dpif_netdev_class;