From: Liu Chang <liuch...@cmss.chinamobile.com>
Nowadays some Nics support hw offloading via dpdk rte_flow lib.
Many layer2-layer4 fields can be offloaded to nics, including smac/dmac
ipv4 sip/dip etc. Also some nics(including intel X710) supports ipv6
header offloading, but when we execute netdev_offload_dpdk_add_flow,
there is no IPV6 rte_flow pattern.
This patch adds support for IPV6 header hw-offload rte_flow pattern,
including ipv6_label, nw_ttl, nw_proto, ipv6 sip and dip, also the
corresponding mask filed is added.
Signed-off-by: Liu Chang <liuch...@cmss.chinamobile.com>
---
lib/netdev-offload-dpdk.c | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/lib/netdev-offload-dpdk.c b/lib/netdev-offload-dpdk.c
index f8c46bbaa..f8d3a044a 100644
--- a/lib/netdev-offload-dpdk.c
+++ b/lib/netdev-offload-dpdk.c
@@ -635,6 +635,38 @@ parse_flow_match(struct flow_patterns *patterns,
next_proto_mask = &mask->hdr.next_proto_id;
}
+ /* IP v6 */
+ if (match->flow.dl_type == htons(ETH_TYPE_IPV6)) {
+ int i =0;
+ struct rte_flow_item_ipv6 *spec, *mask;
+
+ spec = xzalloc(sizeof *spec);
+ mask = xzalloc(sizeof *mask);
+
+ spec->hdr.vtc_flow = match->flow.ipv6_label;
+ spec->hdr.proto = match->flow.nw_proto;
+ spec->hdr.hop_limits = match->flow.nw_ttl;
+
+ mask->hdr.vtc_flow = match->wc.masks.ipv6_label;
+ mask->hdr.proto = match->wc.masks.nw_proto;
+ mask->hdr.hop_limits = match->wc.masks.nw_ttl;
+
+ for (i = 0; i < 16; i++) {
+
+ spec->hdr.src_addr[i] = match->flow.ipv6_src.s6_addr[i];
+ spec->hdr.dst_addr[i] = match->flow.ipv6_dst.s6_addr[i];
+
+ mask->hdr.src_addr[i] = match->wc.masks.ipv6_src.s6_addr[i];
+ mask->hdr.dst_addr[i] = match->wc.masks.ipv6_dst.s6_addr[i];
+ }
+
+ add_flow_pattern(patterns, RTE_FLOW_ITEM_TYPE_IPV6, spec, mask);
+
+ /* Save proto for L4 protocol setup. */
+ proto = spec->hdr.proto & mask->hdr.proto;
+ next_proto_mask = &mask->hdr.proto;
+ }
+
if (proto != IPPROTO_ICMP && proto != IPPROTO_UDP &&
proto != IPPROTO_SCTP && proto != IPPROTO_TCP &&
(match->wc.masks.tp_src ||
--
2.13.3
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