Merge branch 'mainstream'

[sliver-openvswitch.git] / include / openflow / nicira-ext.h

diff --git a/include/openflow/nicira-ext.h b/include/openflow/nicira-ext.h
index 8e6af52..e9790fd 100644 (file)
--- a/include/openflow/nicira-ext.h
+++ b/include/openflow/nicira-ext.h
@@ -303,6 +303,7 @@ enum nx_action_subtype {
     NXAST_FIN_TIMEOUT,          /* struct nx_action_fin_timeout */
     NXAST_CONTROLLER,           /* struct nx_action_controller */
     NXAST_DEC_TTL_CNT_IDS,      /* struct nx_action_cnt_ids */
+    NXAST_WRITE_METADATA,       /* struct nx_action_write_metadata */
 };
 
 /* Header for Nicira-defined actions. */
@@ -502,6 +503,10 @@ OFP_ASSERT(sizeof(struct nx_action_pop_queue) == 16);
  * The switch will reject actions for which src_ofs+n_bits is greater than the
  * width of 'src' or dst_ofs+n_bits is greater than the width of 'dst' with
  * error type OFPET_BAD_ACTION, code OFPBAC_BAD_ARGUMENT.
+ *
+ * This action behaves properly when 'src' overlaps with 'dst', that is, it
+ * behaves as if 'src' were copied out to a temporary buffer, then the
+ * temporary buffer copied to 'dst'.
  */
 struct nx_action_reg_move {
     ovs_be16 type;                  /* OFPAT_VENDOR. */
@@ -2191,4 +2196,18 @@ struct nx_flow_monitor_cancel {
 };
 OFP_ASSERT(sizeof(struct nx_flow_monitor_cancel) == 4);
 
+/* Action structure for NXAST_WRITE_METADATA.
+ *
+ * Modifies the 'mask' bits of the metadata value. */
+struct nx_action_write_metadata {
+    ovs_be16 type;                  /* OFPAT_VENDOR. */
+    ovs_be16 len;                   /* Length is 32. */
+    ovs_be32 vendor;                /* NX_VENDOR_ID. */
+    ovs_be16 subtype;               /* NXAST_WRITE_METADATA. */
+    uint8_t zeros[6];               /* Must be zero. */
+    ovs_be64 metadata;              /* Metadata register. */
+    ovs_be64 mask;                  /* Metadata mask. */
+};
+OFP_ASSERT(sizeof(struct nx_action_write_metadata) == 32);
+
 #endif /* openflow/nicira-ext.h */