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dpif: Add support for OVS_ACTION_ATTR_CT_CLEAR

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This supports using the ct_clear action in the kernel datapath. To
preserve compatibility with current ct_clear behavior on old kernels, we
only pass this action down to the datapath if a probe reveals the
datapath actually supports it.

Signed-off-by: Eric Garver <e@erig.me>
Acked-by: William Tu <u9012063@gmail.com>
Acked-by: Flavio Leitner <fbl@sysclose.org>
Signed-off-by: Justin Pettit <jpettit@ovn.org>
This commit is contained in:
Eric Garver
2018-01-19 14:21:51 -05:00
committed by Justin Pettit
parent 70bbaa4649
commit 1fe178d251
15 changed files with 88 additions and 4 deletions
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7
lib/odp-execute.c
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@@ -35,6 +35,7 @@
#include "unaligned.h"
#include "util.h"
#include "csum.h"
#include "conntrack.h"
/* Masked copy of an ethernet address. 'src' is already properly masked. */
static void
@@ -674,6 +675,7 @@ requires_datapath_assistance(const struct nlattr *a)
case OVS_ACTION_ATTR_CLONE:
case OVS_ACTION_ATTR_PUSH_NSH:
case OVS_ACTION_ATTR_POP_NSH:
case OVS_ACTION_ATTR_CT_CLEAR:
return false;
case OVS_ACTION_ATTR_UNSPEC:
@@ -874,6 +876,11 @@ odp_execute_actions(void *dp, struct dp_packet_batch *batch, bool steal,
}
break;
}
case OVS_ACTION_ATTR_CT_CLEAR:
DP_PACKET_BATCH_FOR_EACH (packet, batch) {
conntrack_clear(packet);
}
break;
case OVS_ACTION_ATTR_OUTPUT:
case OVS_ACTION_ATTR_TUNNEL_PUSH: