X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=lib%2Fdpif-provider.h;h=429cc9d73e279318ee29974397cf031dc3a2ef8c;hb=4c1b8eecda77f8d1a2a500b3a16d6a212bd3c80a;hp=1975cc5c1996765c3506dfced9b6762f898bdf28;hpb=a8d9304d121f56af0e6f02677342933579be3277;p=sliver-openvswitch.git

diff --git a/lib/dpif-provider.h b/lib/dpif-provider.h
index 1975cc5c1..429cc9d73 100644
--- a/lib/dpif-provider.h
+++ b/lib/dpif-provider.h
@@ -110,16 +110,6 @@ struct dpif_class {
     /* Retrieves statistics for 'dpif' into 'stats'. */
     int (*get_stats)(const struct dpif *dpif, struct dpif_dp_stats *stats);
 
-    /* Retrieves 'dpif''s current treatment of IP fragments into '*drop_frags':
-     * true indicates that fragments are dropped, false indicates that
-     * fragments are treated in the same way as other IP packets (except that
-     * the L4 header cannot be read). */
-    int (*get_drop_frags)(const struct dpif *dpif, bool *drop_frags);
-
-    /* Changes 'dpif''s treatment of IP fragments to 'drop_frags', whose
-     * meaning is the same as for the get_drop_frags member function. */
-    int (*set_drop_frags)(struct dpif *dpif, bool drop_frags);
-
     /* Adds 'netdev' as a new port in 'dpif'.  If successful, sets '*port_no'
      * to the new port's port number. */
     int (*port_add)(struct dpif *dpif, struct netdev *netdev,
@@ -142,6 +132,18 @@ struct dpif_class {
      * actions. */
     int (*get_max_ports)(const struct dpif *dpif);
 
+    /* Returns the Netlink PID value to supply in OVS_ACTION_ATTR_USERSPACE
+     * actions as the OVS_USERSPACE_ATTR_PID attribute's value, for use in
+     * flows whose packets arrived on port 'port_no'.
+     *
+     * The return value only needs to be meaningful when DPIF_UC_ACTION has
+     * been enabled in the 'dpif''s listen mask, and it is allowed to change
+     * when DPIF_UC_ACTION is disabled and then re-enabled.
+     *
+     * A dpif provider that doesn't have meaningful Netlink PIDs can use NULL
+     * for this function.  This is equivalent to always returning 0. */
+    uint32_t (*port_get_pid)(const struct dpif *dpif, uint16_t port_no);
+
     /* Attempts to begin dumping the ports in a dpif.  On success, returns 0
      * and initializes '*statep' with any data needed for iteration.  On
      * failure, returns a positive errno value. */
@@ -291,6 +293,14 @@ struct dpif_class {
                    const struct nlattr *actions, size_t actions_len,
                    const struct ofpbuf *packet);
 
+    /* Executes each of the 'n_ops' operations in 'ops' on 'dpif', in the order
+     * in which they are specified, placing each operation's results in the
+     * "output" members documented in comments.
+     *
+     * This function is optional.  It is only worthwhile to implement it if
+     * 'dpif' can perform operations in batch faster than individually. */
+    void (*operate)(struct dpif *dpif, union dpif_op **ops, size_t n_ops);
+
     /* Retrieves 'dpif''s "listen mask" into '*listen_mask'.  A 1-bit of value
      * 2**X set in '*listen_mask' indicates that 'dpif' will receive messages
      * of the type (from "enum dpif_upcall_type") with value X when its 'recv'
@@ -300,12 +310,15 @@ struct dpif_class {
     /* Sets 'dpif''s "listen mask" to 'listen_mask'.  A 1-bit of value 2**X set
      * in '*listen_mask' requests that 'dpif' will receive messages of the type
      * (from "enum dpif_upcall_type") with value X when its 'recv' function is
-     * called. */
+     * called.
+     *
+     * Turning DPIF_UC_ACTION off and then back on is allowed to change Netlink
+     * PID assignments (see ->port_get_pid()).  The client is responsible for
+     * updating flows as necessary if it does this. */
     int (*recv_set_mask)(struct dpif *dpif, int listen_mask);
 
     /* Translates OpenFlow queue ID 'queue_id' (in host byte order) into a
-     * priority value for use in the OVS_ACTION_ATTR_SET_PRIORITY action in
-     * '*priority'. */
+     * priority value used for setting packet priority. */
     int (*queue_to_priority)(const struct dpif *dpif, uint32_t queue_id,
                              uint32_t *priority);