X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Fopenflow%2Fnicira-ext.h;h=1a59d3b03114e53b2297d5d6081ce853389d3ac0;hb=cc01d0bb79103a01aa0afc3484249fd518b877ea;hp=3a4a694016bb0bc0a5880aae37276da10b1ef386;hpb=b6c9e612fa0801037c60339a931d29413e8fa08f;p=openvswitch

diff --git a/include/openflow/nicira-ext.h b/include/openflow/nicira-ext.h
index 3a4a6940..1a59d3b0 100644
--- a/include/openflow/nicira-ext.h
+++ b/include/openflow/nicira-ext.h
@@ -205,8 +205,8 @@ OFP_ASSERT(sizeof(struct nxt_tun_id_cookie) == 24);
  *      OpenFlow features.  In particular attempts to modify the flow table
  *      will be rejected with an OFPBRC_EPERM error.
  *
- *      Slave controllers also do not receive asynchronous messages
- *      (OFPT_PACKET_IN, OFPT_FLOW_REMOVED, OFPT_PORT_STATUS).
+ *      Slave controllers do not receive OFPT_PACKET_IN or OFPT_FLOW_REMOVED
+ *      messages, but they do receive OFPT_PORT_STATUS messages.
  */
 struct nx_role_request {
     struct nicira_header nxh;
@@ -230,6 +230,7 @@ enum nx_action_subtype {
     NXAST_POP_QUEUE,            /* struct nx_action_pop_queue */
     NXAST_REG_MOVE,             /* struct nx_action_reg_move */
     NXAST_REG_LOAD,             /* struct nx_action_reg_load */
+    NXAST_NOTE                  /* struct nx_action_note */
 };
 
 /* Header for Nicira-defined actions. */
@@ -442,6 +443,24 @@ struct nx_action_reg_load {
 };
 OFP_ASSERT(sizeof(struct nx_action_reg_load) == 24);
 
+/* Action structure for NXAST_NOTE.
+ *
+ * This action has no effect.  It is variable length.  The switch does not
+ * attempt to interpret the user-defined 'note' data in any way.  A controller
+ * can use this action to attach arbitrary metadata to a flow.
+ *
+ * This action might go away in the future.
+ */
+struct nx_action_note {
+    uint16_t type;                  /* OFPAT_VENDOR. */
+    uint16_t len;                   /* A multiple of 8, but at least 16. */
+    uint32_t vendor;                /* NX_VENDOR_ID. */
+    uint16_t subtype;               /* NXAST_NOTE. */
+    uint8_t note[6];                /* Start of user-defined data. */
+    /* Possibly followed by additional user-defined data. */
+};
+OFP_ASSERT(sizeof(struct nx_action_note) == 16);
+
 /* Wildcard for tunnel ID. */
 #define NXFW_TUN_ID  (1 << 25)
 
@@ -669,8 +688,12 @@ OFP_ASSERT(sizeof(struct nx_action_reg_load) == 24);
  *
  * Format: 48-bit Ethernet MAC address.
  *
- * Masking: Not maskable. */
+ * Masking: The nxm_mask patterns 01:00:00:00:00:00 and FE:FF:FF:FF:FF:FF must
+ *   be supported for NXM_OF_ETH_DST_W (as well as the trivial patterns that
+ *   are all-0-bits or all-1-bits).  Support for other patterns and for masking
+ *   of NXM_OF_ETH_SRC is optional. */
 #define NXM_OF_ETH_DST    NXM_HEADER  (0x0000,  1, 6)
+#define NXM_OF_ETH_DST_W  NXM_HEADER_W(0x0000,  1, 6)
 #define NXM_OF_ETH_SRC    NXM_HEADER  (0x0000,  2, 6)
 
 /* Packet's Ethernet type.