[dpdk-dev] [PATCH 19/20] i40e: fix offloading of outer checksum for ip in ip tunnels

[Olivier Matz <olivier.matz@6wind.com>]

When offloading the checksums of ipip tunnels, m->l2_len is set to 0
as there is no tunnel or inner l2 header. Since this is a valid value
remove the test.

By the way, also remove the same test with l3_len because at this
point, it is expected that the software provides proper values in the
mbuf. It should avoid a test in dataplane processing and therefore
slightly increase performance.

Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
---
 lib/librte_pmd_i40e/i40e_rxtx.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/lib/librte_pmd_i40e/i40e_rxtx.c b/lib/librte_pmd_i40e/i40e_rxtx.c
index 0786255..3031bd7 100644
--- a/lib/librte_pmd_i40e/i40e_rxtx.c
+++ b/lib/librte_pmd_i40e/i40e_rxtx.c
@@ -471,16 +471,6 @@ i40e_txd_enable_checksum(uint64_t ol_flags,
 			uint16_t outer_l3_len,
 			uint32_t *cd_tunneling)
 {
-	if (!l2_len) {
-		PMD_DRV_LOG(DEBUG, "L2 length set to 0");
-		return;
-	}
-
-	if (!l3_len) {
-		PMD_DRV_LOG(DEBUG, "L3 length set to 0");
-		return;
-	}
-
 	/* UDP tunneling packet TX checksum offload */
 	if (unlikely(ol_flags & PKT_TX_OUTER_IP_CKSUM)) {
 
-- 
2.1.4