From: Olivier Matz <olivier.matz@6wind.com>
To: dev@dpdk.org
Cc: jerin.jacob@caviumnetworks.com,
Didier Pallard <didier.pallard@6wind.com>
Subject: [dpdk-dev] [PATCH 2/2] net: support Mpls in software packet type parser
Date: Tue, 23 Oct 2018 09:46:49 +0200 [thread overview]
Message-ID: <20181023074649.10438-2-olivier.matz@6wind.com> (raw)
In-Reply-To: <20181023074649.10438-1-olivier.matz@6wind.com>
Add a new RTE_PTYPE_L2_ETHER_MPLS packet type, and its support in
rte_net_get_ptype().
Signed-off-by: Didier Pallard <didier.pallard@6wind.com>
Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
---
lib/librte_mbuf/rte_mbuf_ptype.h | 7 +++++++
lib/librte_net/rte_ether.h | 2 ++
lib/librte_net/rte_net.c | 21 ++++++++++++++++++++-
3 files changed, 29 insertions(+), 1 deletion(-)
diff --git a/lib/librte_mbuf/rte_mbuf_ptype.h b/lib/librte_mbuf/rte_mbuf_ptype.h
index 01acc66e2..3029777e2 100644
--- a/lib/librte_mbuf/rte_mbuf_ptype.h
+++ b/lib/librte_mbuf/rte_mbuf_ptype.h
@@ -131,6 +131,13 @@ extern "C" {
*/
#define RTE_PTYPE_L2_ETHER_PPPOE 0x00000008
/**
+ * MPLS packet type.
+ *
+ * Packet format:
+ * <'ether type'=[0x8847|0x0x8848]>
+ */
+#define RTE_PTYPE_L2_ETHER_MPLS 0x00000009
+/**
* Mask of layer 2 packet types.
* It is used for outer packet for tunneling cases.
*/
diff --git a/lib/librte_net/rte_ether.h b/lib/librte_net/rte_ether.h
index bee2b34f0..c2c5e249f 100644
--- a/lib/librte_net/rte_ether.h
+++ b/lib/librte_net/rte_ether.h
@@ -306,6 +306,8 @@ struct vxlan_hdr {
#define ETHER_TYPE_SLOW 0x8809 /**< Slow protocols (LACP and Marker). */
#define ETHER_TYPE_TEB 0x6558 /**< Transparent Ethernet Bridging. */
#define ETHER_TYPE_LLDP 0x88CC /**< LLDP Protocol. */
+#define ETHER_TYPE_MPLS 0x8847 /**< MPLS ethertype. */
+#define ETHER_TYPE_MPLSM 0x8848 /**< MPLS multicast ethertype. */
#define ETHER_VXLAN_HLEN (sizeof(struct udp_hdr) + sizeof(struct vxlan_hdr))
/**< VXLAN tunnel header length. */
diff --git a/lib/librte_net/rte_net.c b/lib/librte_net/rte_net.c
index 9eb7c7438..378a4126c 100644
--- a/lib/librte_net/rte_net.c
+++ b/lib/librte_net/rte_net.c
@@ -13,6 +13,7 @@
#include <rte_udp.h>
#include <rte_sctp.h>
#include <rte_gre.h>
+#include <rte_mpls.h>
#include <rte_net.h>
/* get l3 packet type from ip6 next protocol */
@@ -274,9 +275,27 @@ uint32_t rte_net_get_ptype(const struct rte_mbuf *m,
off += 2 * sizeof(*vh);
hdr_lens->l2_len += 2 * sizeof(*vh);
proto = vh->eth_proto;
+ } else if ((proto == rte_cpu_to_be_16(ETHER_TYPE_MPLS)) ||
+ (proto == rte_cpu_to_be_16(ETHER_TYPE_MPLSM))) {
+ unsigned int i;
+ const struct mpls_hdr *mh;
+ struct mpls_hdr mh_copy;
+
+#define MAX_MPLS_HDR 5
+ for (i = 0; i < MAX_MPLS_HDR; i++) {
+ mh = rte_pktmbuf_read(m, off + (i * sizeof(*mh)),
+ sizeof(*mh), &mh_copy);
+ if (unlikely(mh == NULL))
+ return pkt_type;
+ }
+ if (i == MAX_MPLS_HDR)
+ return pkt_type;
+ pkt_type = RTE_PTYPE_L2_ETHER_MPLS;
+ hdr_lens->l2_len += (sizeof(*mh) * i);
+ return pkt_type;
}
- l3:
+l3:
if ((layers & RTE_PTYPE_L3_MASK) == 0)
return pkt_type;
--
2.11.0
next prev parent reply other threads:[~2018-10-23 7:47 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-23 7:46 [dpdk-dev] [PATCH 1/2] net: add Mpls header structure Olivier Matz
2018-10-23 7:46 ` Olivier Matz [this message]
2018-10-25 11:04 ` Ferruh Yigit
2018-10-25 11:05 ` Ferruh Yigit
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