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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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11
lib/odp-util.c
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@@ -118,6 +118,7 @@ odp_action_len(uint16_t type)
case OVS_ACTION_ATTR_SET_MASKED: return ATTR_LEN_VARIABLE;
case OVS_ACTION_ATTR_SAMPLE: return ATTR_LEN_VARIABLE;
case OVS_ACTION_ATTR_CT: return ATTR_LEN_VARIABLE;
case OVS_ACTION_ATTR_CT_CLEAR: return 0;
case OVS_ACTION_ATTR_PUSH_ETH: return sizeof(struct ovs_action_push_eth);
case OVS_ACTION_ATTR_POP_ETH: return 0;
case OVS_ACTION_ATTR_CLONE: return ATTR_LEN_VARIABLE;
@@ -1131,6 +1132,9 @@ format_odp_action(struct ds *ds, const struct nlattr *a,
case OVS_ACTION_ATTR_CT:
format_odp_conntrack_action(ds, a);
break;
case OVS_ACTION_ATTR_CT_CLEAR:
ds_put_cstr(ds, "ct_clear");
break;
case OVS_ACTION_ATTR_CLONE:
format_odp_clone_action(ds, a, portno_names);
break;
@@ -2284,6 +2288,13 @@ parse_odp_action(const char *s, const struct simap *port_names,
}
}
{
if (!strncmp(s, "ct_clear", 8)) {
nl_msg_put_flag(actions, OVS_ACTION_ATTR_CT_CLEAR);
return 8;
}
}
{
int retval;