/*
- * Copyright (c) 2009, 2010, 2011, 2012 Nicira Networks.
+ * Copyright (c) 2009, 2010, 2011, 2012 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* With few exceptions, ofproto implementations may look at these fields but
* should not modify them. */
struct ofproto {
+ struct hmap_node hmap_node; /* In global 'all_ofprotos' hmap. */
const struct ofproto_class *ofproto_class;
char *type; /* Datapath type. */
char *name; /* Datapath name. */
- struct hmap_node hmap_node; /* In global 'all_ofprotos' hmap. */
/* Settings. */
uint64_t fallback_dpid; /* Datapath ID if no better choice found. */
* widespread use, we will delete these interfaces. */
unsigned long int *vlan_bitmap; /* 4096-bit bitmap of in-use VLANs. */
bool vlans_changed; /* True if new VLANs are in use. */
+ int min_mtu; /* Current MTU of non-internal ports. */
};
void ofproto_init_tables(struct ofproto *, int n_tables);
* With few exceptions, ofproto implementations may look at these fields but
* should not modify them. */
struct ofport {
- struct ofproto *ofproto; /* The ofproto that contains this port. */
struct hmap_node hmap_node; /* In struct ofproto's "ports" hmap. */
+ struct ofproto *ofproto; /* The ofproto that contains this port. */
struct netdev *netdev;
struct ofputil_phy_port pp;
uint16_t ofp_port; /* OpenFlow port number. */
* With few exceptions, ofproto implementations may look at these fields but
* should not modify them. */
struct rule {
- struct ofproto *ofproto; /* The ofproto that contains this rule. */
struct list ofproto_node; /* Owned by ofproto base code. */
+ struct ofproto *ofproto; /* The ofproto that contains this rule. */
struct cls_rule cr; /* In owning ofproto's classifier. */
struct ofoperation *pending; /* Operation now in progress, if nonnull. */
*
* 'flow' reflects the flow information for 'packet'. All of the
* information in 'flow' is extracted from 'packet', except for
- * flow->in_port, which is taken from the OFPT_PACKET_OUT message.
- * flow->tun_id and its register values are zeroed.
+ * flow->in_port (see below). flow->tun_id and its register values are
+ * zeroed.
+ *
+ * flow->in_port comes from the OpenFlow OFPT_PACKET_OUT message. The
+ * implementation should reject invalid flow->in_port values by returning
+ * OFPERR_NXBRC_BAD_IN_PORT. For consistency, the implementation should
+ * consider valid for flow->in_port any value that could possibly be seen
+ * in a packet that it passes to connmgr_send_packet_in(). Ideally, even
+ * an implementation that never generates packet-ins (e.g. due to hardware
+ * limitations) should still allow flow->in_port values for every possible
+ * physical port and OFPP_LOCAL. The only virtual ports (those above
+ * OFPP_MAX) that the caller will ever pass in as flow->in_port, other than
+ * OFPP_LOCAL, are OFPP_NONE and OFPP_CONTROLLER. The implementation
+ * should allow both of these, treating each of them as packets generated
+ * by the controller as opposed to packets originating from some switch
+ * port.
+ *
+ * (Ordinarily the only effect of flow->in_port is on output actions that
+ * involve the input port, such as actions that output to OFPP_IN_PORT,
+ * OFPP_FLOOD, or OFPP_ALL. flow->in_port can also affect Nicira extension
+ * "resubmit" actions.)
*
* 'packet' is not matched against the OpenFlow flow table, so its
* statistics should not be included in OpenFlow flow statistics.
int (*get_cfm_remote_mpids)(const struct ofport *ofport,
const uint64_t **rmps, size_t *n_rmps);
+ /* Checks the health of CFM configured on 'ofport'. Returns an integer
+ * to indicate the health percentage of the 'ofport' which is an average of
+ * the health of all the remote_mps. Returns an integer between 0 and 100
+ * where 0 means that the 'ofport' is very unhealthy and 100 means the
+ * 'ofport' is perfectly healthy. Returns -1 if CFM is not enabled on
+ * 'port' or if the number of remote_mpids is > 1.
+ *
+ * This function may be a null pointer if the ofproto implementation does
+ * not support CFM. */
+ int (*get_cfm_health)(const struct ofport *ofport);
+
/* Configures spanning tree protocol (STP) on 'ofproto' using the
* settings defined in 's'.
*