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dpif-netdev: user space datapath recirculation

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Add basic recirculation infrastructure and user space
data path support for it. The following bond mega flow patch will
make use of this infrastructure.

Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
This commit is contained in:
Andy Zhou
2014-03-04 15:36:03 -08:00
parent f537461746
commit 572f732ab0
8 changed files with 218 additions and 10 deletions
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9
lib/odp-execute.c
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@@ -125,6 +125,14 @@ odp_execute_set_action(struct ofpbuf *packet, const struct nlattr *a,
set_arp(packet, nl_attr_get_unspec(a, sizeof(struct ovs_key_arp)));
break;
case OVS_KEY_ATTR_DP_HASH:
md->dp_hash = nl_attr_get_u32(a);
break;
case OVS_KEY_ATTR_RECIRC_ID:
md->recirc_id = nl_attr_get_u32(a);
break;
case OVS_KEY_ATTR_UNSPEC:
case OVS_KEY_ATTR_ENCAP:
case OVS_KEY_ATTR_ETHERTYPE:
@@ -197,6 +205,7 @@ odp_execute_actions__(void *dp, struct ofpbuf *packet, bool steal,
/* These only make sense in the context of a datapath. */
case OVS_ACTION_ATTR_OUTPUT:
case OVS_ACTION_ATTR_USERSPACE:
case OVS_ACTION_ATTR_RECIRC:
if (dp_execute_action) {
bool may_steal;
/* Allow 'dp_execute_action' to steal the packet data if we do