This patch support parse ipv6 extension header, and
support TSO for ipv6tcp packets with extension header.
Signed-off-by: Jie Hai <haij...@huawei.com>
---
app/test-pmd/csumonly.c | 47 ++++++++++++++++++++++++++++++++++++++++-
1 file changed, 46 insertions(+), 1 deletion(-)
diff --git a/app/test-pmd/csumonly.c b/app/test-pmd/csumonly.c
index 2246c22e8e56..a7b11490fe27 100644
--- a/app/test-pmd/csumonly.c
+++ b/app/test-pmd/csumonly.c
@@ -124,14 +124,59 @@ parse_ipv4(struct rte_ipv4_hdr *ipv4_hdr, struct
testpmd_offload_info *info)
info->l4_len = 0;
}
+static uint16_t
+parse_ipv6_ext(struct rte_ipv6_hdr *ipv6_hdr, uint32_t *off)
+{
+ struct ext_hdr {
+ uint8_t next_hdr;
+ uint8_t len;
+ };
+ struct ext_hdr *xh;
+ uint16_t proto;
+ char *xh_fst;
+ uint16_t i;
+
+ proto = ipv6_hdr->proto;
+ xh_fst = (char *)ipv6_hdr + sizeof(*ipv6_hdr);
+#define MAX_EXT_HDRS 9
+ for (i = 0; i < MAX_EXT_HDRS; i++) {
+ switch (proto) {
+ case IPPROTO_HOPOPTS:
+ case IPPROTO_ROUTING:
+ case IPPROTO_DSTOPTS:
+ xh = (struct ext_hdr *)(xh_fst + *off);
+ *off += (xh->len + 1) * 8;
+ proto = xh->next_hdr;
+ break;
+ case IPPROTO_AH:
+ xh = (struct ext_hdr *)(xh_fst + *off);
+ *off += (xh->len + 2) * 4;
+ proto = xh->next_hdr;
+ break;
+ case IPPROTO_FRAGMENT:
+ xh = (struct ext_hdr *)(xh_fst + *off);
+ *off += 8;
+ proto = xh->next_hdr;
+ return proto; /* this is always the last ext hdr */
+ case IPPROTO_NONE:
+ return proto;
+ default:
+ return proto;
+ }
+ }
+ return proto;
+}
+
/* Parse an IPv6 header to fill l3_len, l4_len, and l4_proto */
static void
parse_ipv6(struct rte_ipv6_hdr *ipv6_hdr, struct testpmd_offload_info *info)
{
struct rte_tcp_hdr *tcp_hdr;
+ uint32_t off = 0;
info->l3_len = sizeof(struct rte_ipv6_hdr);
- info->l4_proto = ipv6_hdr->proto;
+ info->l4_proto = parse_ipv6_ext(ipv6_hdr, &off);
+ info->l3_len += off;
/* only fill l4_len for TCP, it's useful for TSO */
if (info->l4_proto == IPPROTO_TCP) {
--
2.22.0
