The function simply returns the ethernet type of the packet (after
eventually discarding the VLAN tag). It will be used by a following
commit.
Signed-off-by: Daniele Di Proietto <diproiet...@vmware.com>
Acked-by: Flavio Leitner <f...@sysclose.org>
---
lib/flow.c | 14 ++++++++++++--
lib/flow.h | 1 +
2 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/lib/flow.c b/lib/flow.c
index f94b1f2..8cf707b 100644
--- a/lib/flow.c
+++ b/lib/flow.c
@@ -328,7 +328,7 @@ parse_mpls(const void **datap, size_t *sizep)
return MIN(count, FLOW_MAX_MPLS_LABELS);
}
-static inline ovs_be16
+static inline ALWAYS_INLINE ovs_be16
parse_vlan(const void **datap, size_t *sizep)
{
const struct eth_header *eth = *datap;
@@ -350,7 +350,7 @@ parse_vlan(const void **datap, size_t *sizep)
return 0;
}
-static inline ovs_be16
+static inline ALWAYS_INLINE ovs_be16
parse_ethertype(const void **datap, size_t *sizep)
{
const struct llc_snap_header *llc;
@@ -827,6 +827,16 @@ miniflow_extract(struct dp_packet *packet, struct miniflow
*dst)
dst->map = mf.map;
}
+ovs_be16
+parse_dl_type(const struct eth_header *data_, size_t size)
+{
+ const void *data = data_;
+
+ parse_vlan(&data, &size);
+
+ return parse_ethertype(&data, &size);
+}
+
/* For every bit of a field that is wildcarded in 'wildcards', sets the
* corresponding bit in 'flow' to zero. */
void
diff --git a/lib/flow.h b/lib/flow.h
index c041e8a..fd9c712 100644
--- a/lib/flow.h
+++ b/lib/flow.h
@@ -108,6 +108,7 @@ void flow_compose(struct dp_packet *, const struct flow *);
bool parse_ipv6_ext_hdrs(const void **datap, size_t *sizep, uint8_t *nw_proto,
uint8_t *nw_frag);
+ovs_be16 parse_dl_type(const struct eth_header *data_, size_t size);
static inline uint64_t
flow_get_xreg(const struct flow *flow, int idx)
--
2.8.1
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