odp-execute: Consolidate callbacks.

[sliver-openvswitch.git] / ofproto / ofproto-dpif-xlate.c

diff --git a/ofproto/ofproto-dpif-xlate.c b/ofproto/ofproto-dpif-xlate.c
index 065560f..11e0855 100644 (file)
--- a/ofproto/ofproto-dpif-xlate.c
+++ b/ofproto/ofproto-dpif-xlate.c
@@ -42,6 +42,7 @@
 #include "ofp-actions.h"
 #include "ofproto/ofproto-dpif-ipfix.h"
 #include "ofproto/ofproto-dpif-mirror.h"
+#include "ofproto/ofproto-dpif-monitor.h"
 #include "ofproto/ofproto-dpif-sflow.h"
 #include "ofproto/ofproto-dpif.h"
 #include "ofproto/ofproto-provider.h"
@@ -86,6 +87,11 @@ struct xbridge {
     enum ofp_config_flags frag;   /* Fragmentation handling. */
     bool has_in_band;             /* Bridge has in band control? */
     bool forward_bpdu;            /* Bridge forwards STP BPDUs? */
+
+    /* True if the datapath supports variable-length
+     * OVS_USERSPACE_ATTR_USERDATA in OVS_ACTION_ATTR_USERSPACE actions.
+     * False if the datapath supports only 8-byte (or shorter) userdata. */
+    bool variable_length_userdata;
 };
 
 struct xbundle {
@@ -248,7 +254,8 @@ xlate_ofproto_set(struct ofproto_dpif *ofproto, const char *name,
                   const struct dpif_sflow *sflow,
                   const struct dpif_ipfix *ipfix,
                   const struct netflow *netflow, enum ofp_config_flags frag,
-                  bool forward_bpdu, bool has_in_band)
+                  bool forward_bpdu, bool has_in_band,
+                  bool variable_length_userdata)
 {
     struct xbridge *xbridge = xbridge_lookup(ofproto);
 
@@ -300,6 +307,7 @@ xlate_ofproto_set(struct ofproto_dpif *ofproto, const char *name,
     xbridge->frag = frag;
     xbridge->miss_rule = miss_rule;
     xbridge->no_packet_in_rule = no_packet_in_rule;
+    xbridge->variable_length_userdata = variable_length_userdata;
 }
 
 void
@@ -572,18 +580,7 @@ xlate_receive(const struct dpif_backer *backer, struct ofpbuf *packet,
             /* Make the packet resemble the flow, so that it gets sent to
              * an OpenFlow controller properly, so that it looks correct
              * for sFlow, and so that flow_extract() will get the correct
-             * vlan_tci if it is called on 'packet'.
-             *
-             * The allocated space inside 'packet' probably also contains
-             * 'key', that is, both 'packet' and 'key' are probably part of
-             * a struct dpif_upcall (see the large comment on that
-             * structure definition), so pushing data on 'packet' is in
-             * general not a good idea since it could overwrite 'key' or
-             * free it as a side effect.  However, it's OK in this special
-             * case because we know that 'packet' is inside a Netlink
-             * attribute: pushing 4 bytes will just overwrite the 4-byte
-             * "struct nlattr", which is fine since we don't need that
-             * header anymore. */
+             * vlan_tci if it is called on 'packet'. */
             eth_push_vlan(packet, flow->vlan_tci);
         }
         /* We can't reproduce 'key' from 'flow'. */
@@ -979,7 +976,7 @@ add_mirror_actions(struct xlate_ctx *ctx, const struct flow *orig_flow)
         bool has_mirror;
         int out_vlan;
 
-        has_mirror = mirror_get(xbridge->mbridge, mirror_mask_ffs(mirrors) - 1,
+        has_mirror = mirror_get(xbridge->mbridge, raw_ctz(mirrors),
                                 &vlans, &dup_mirrors, &out, &out_vlan);
         ovs_assert(has_mirror);
 
@@ -1037,7 +1034,7 @@ input_vid_to_vlan(const struct xbundle *in_xbundle, uint16_t vid)
         return vid ? vid : in_xbundle->vlan;
 
     default:
-        NOT_REACHED();
+        OVS_NOT_REACHED();
     }
 }
 
@@ -1090,7 +1087,7 @@ input_vid_is_valid(uint16_t vid, struct xbundle *in_xbundle, bool warn)
         return true;
 
     default:
-        NOT_REACHED();
+        OVS_NOT_REACHED();
     }
 
 }
@@ -1117,7 +1114,7 @@ output_vlan_to_vid(const struct xbundle *out_xbundle, uint16_t vlan)
         return vlan == out_xbundle->vlan ? 0 : vlan;
 
     default:
-        NOT_REACHED();
+        OVS_NOT_REACHED();
     }
 }
 
@@ -1656,6 +1653,14 @@ process_special(struct xlate_ctx *ctx, const struct flow *flow,
     } else if (xport->bfd && bfd_should_process_flow(xport->bfd, flow, wc)) {
         if (packet) {
             bfd_process_packet(xport->bfd, flow, packet);
+            /* If POLL received, immediately sends FINAL back. */
+            if (bfd_should_send_packet(xport->bfd)) {
+                if (xport->peer) {
+                    ofproto_dpif_monitor_port_send_soon(xport->ofport);
+                } else {
+                    ofproto_dpif_monitor_port_send_soon_safe(xport->ofport);
+                }
+            }
         }
         return SLOW_BFD;
     } else if (xport->xbundle && xport->xbundle->lacp
@@ -1999,7 +2004,7 @@ xlate_group_action__(struct xlate_ctx *ctx, struct group_dpif *group)
         xlate_ff_group(ctx, group);
         break;
     default:
-        NOT_REACHED();
+        OVS_NOT_REACHED();
     }
     group_dpif_release(group);
 }
@@ -2088,7 +2093,7 @@ execute_controller_action(struct xlate_ctx *ctx, int len,
                                           &ctx->mpls_depth_delta);
 
     odp_execute_actions(NULL, packet, &key, ctx->xout->odp_actions.data,
-                        ctx->xout->odp_actions.size, NULL, NULL);
+                        ctx->xout->odp_actions.size, NULL);
 
     pin = xmalloc(sizeof *pin);
     pin->up.packet_len = packet->size;
@@ -2523,6 +2528,15 @@ xlate_sample_action(struct xlate_ctx *ctx,
    * the same percentage. */
   uint32_t probability = (os->probability << 16) | os->probability;
 
+  if (!ctx->xbridge->variable_length_userdata) {
+      static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
+
+      VLOG_ERR_RL(&rl, "ignoring NXAST_SAMPLE action because datapath "
+                  "lacks support (needs Linux 3.10+ or kernel module from "
+                  "OVS 1.11+)");
+      return;
+  }
+
   ctx->xout->slow |= commit_odp_actions(&ctx->xin->flow, &ctx->base_flow,
                                         &ctx->xout->odp_actions,
                                         &ctx->xout->wc,
@@ -3099,7 +3113,7 @@ xlate_actions__(struct xlate_in *xin, struct xlate_out *xout)
         ofpacts = actions->ofpacts;
         ofpacts_len = actions->ofpacts_len;
     } else {
-        NOT_REACHED();
+        OVS_NOT_REACHED();
     }
 
     ofpbuf_use_stub(&ctx.stack, ctx.init_stack, sizeof ctx.init_stack);
@@ -3124,14 +3138,14 @@ xlate_actions__(struct xlate_in *xin, struct xlate_out *xout)
             goto out;
 
         case OFPC_FRAG_REASM:
-            NOT_REACHED();
+            OVS_NOT_REACHED();
 
         case OFPC_FRAG_NX_MATCH:
             /* Nothing to do. */
             break;
 
         case OFPC_INVALID_TTL_TO_CONTROLLER:
-            NOT_REACHED();
+            OVS_NOT_REACHED();
         }
     }