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authorSimon Horman <horms@verge.net.au>2013-05-02 10:49:49 +0900
committerJesse Gross <jesse@nicira.com>2013-05-01 19:34:05 -0700
commit20131cefeb4c033e1c3cfaea03e06c6b86a6d98d (patch)
tree02406216066aa28f23585ebe5ff9826a3139005d
parentb82b19e93801a26b155f0191c70aba2fbbbdad42 (diff)
downloadopenvswitch-20131cefeb4c033e1c3cfaea03e06c6b86a6d98d.tar.gz
Make it more obvious that OVS_KEY_ATTR_MPLS may be an array
Note that OVS_KEY_ATTR_MPLS may be an array of ovs_key_mpls and that the acceptable length may be restricted by the implementation. Currently the user-space datapath and proposed kernel datapath implementation restrict the length to a single element. Also update the mpls_top_lse name of the element of struct ovs_key_mpls, as it is an array of LSEs and thus not necessarily just the top LSE. As requested by Jesse Gross Cc: Jesse Gross <jesse@nicira.com> Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Jesse Gross <jesse@nicira.com>
-rw-r--r--include/linux/openvswitch.h6
-rw-r--r--lib/odp-util.c8
2 files changed, 8 insertions, 6 deletions
diff --git a/include/linux/openvswitch.h b/include/linux/openvswitch.h
index bd2f05f8d..e890fd82d 100644
--- a/include/linux/openvswitch.h
+++ b/include/linux/openvswitch.h
@@ -287,7 +287,9 @@ enum ovs_key_attr {
OVS_KEY_ATTR_IPV4_TUNNEL, /* struct ovs_key_ipv4_tunnel */
#endif
- OVS_KEY_ATTR_MPLS = 62, /* struct ovs_key_mpls */
+ OVS_KEY_ATTR_MPLS = 62, /* array of struct ovs_key_mpls.
+ * The implementation may restrict
+ * the accepted length of the array. */
__OVS_KEY_ATTR_MAX
};
@@ -330,7 +332,7 @@ struct ovs_key_ethernet {
};
struct ovs_key_mpls {
- __be32 mpls_top_lse;
+ __be32 mpls_lse;
};
struct ovs_key_ipv4 {
diff --git a/lib/odp-util.c b/lib/odp-util.c
index 1988c637e..ae0926766 100644
--- a/lib/odp-util.c
+++ b/lib/odp-util.c
@@ -942,7 +942,7 @@ format_odp_key_attr(const struct nlattr *a, struct ds *ds)
case OVS_KEY_ATTR_MPLS: {
const struct ovs_key_mpls *mpls_key = nl_attr_get(a);
ds_put_char(ds, '(');
- format_mpls_lse(ds, mpls_key->mpls_top_lse);
+ format_mpls_lse(ds, mpls_key->mpls_lse);
ds_put_char(ds, ')');
break;
}
@@ -1267,7 +1267,7 @@ parse_odp_key_attr(const char *s, const struct simap *port_names,
mpls = nl_msg_put_unspec_uninit(key, OVS_KEY_ATTR_MPLS,
sizeof *mpls);
- mpls->mpls_top_lse = mpls_lse_from_components(label, tc, ttl, bos);
+ mpls->mpls_lse = mpls_lse_from_components(label, tc, ttl, bos);
return n;
}
}
@@ -1630,7 +1630,7 @@ odp_flow_key_from_flow(struct ofpbuf *buf, const struct flow *flow,
mpls_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_MPLS,
sizeof *mpls_key);
- mpls_key->mpls_top_lse = flow->mpls_lse;
+ mpls_key->mpls_lse = flow->mpls_lse;
}
if (is_ip_any(flow) && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) {
@@ -2285,7 +2285,7 @@ commit_mpls_action(const struct flow *flow, struct flow *base,
} else {
struct ovs_key_mpls mpls_key;
- mpls_key.mpls_top_lse = flow->mpls_lse;
+ mpls_key.mpls_lse = flow->mpls_lse;
commit_set_action(odp_actions, OVS_KEY_ATTR_MPLS,
&mpls_key, sizeof(mpls_key));
}