commit a5fb2cf8be8298e589c2b619f7e907a0a1d76262
author Matthew Smith <mgsmith@netgate.com> Mon Dec 18 14:19:07 2017 -0600
committer Damjan Marion <dmarion.lists@gmail.com> Tue Jan 09 20:22:14 2018 +0000
tree 70d2730f421e51dd1579f096690c534f02b4b42b
parent 8554f8adcc97b10eee674762307bfb2ede76d722

Patch ENA PMD to skip setting tx flags in rx path

On rx, the ENA PMD sets tx offload flags based on the
received packet's l4 protocol. This means you need
to turn off those offloads for every packet if you
encapsulate packets arriving on an interface using
that PMD. Disable this behavior.

Change-Id: Icae9f32e3d292d767da440ae5c1280902bdaa083
Signed-off-by: Matthew Smith <mgsmith@netgate.com>

dpdk/dpdk-17.11_patches/0001-ena-pmd-no-tx-flags.patch

diff --git a/dpdk/dpdk-17.11_patches/0001-ena-pmd-no-tx-flags.patch b/dpdk/dpdk-17.11_patches/0001-ena-pmd-no-tx-flags.patch
new file mode 100644
index 0000000..97dbadd
--- /dev/null
+++ b/dpdk/dpdk-17.11_patches/0001-ena-pmd-no-tx-flags.patch
@@ -0,0 +1,21 @@
+diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c
+index 22db895..6f982f6 100644
+--- a/drivers/net/ena/ena_ethdev.c
++++ b/drivers/net/ena/ena_ethdev.c
+@@ -261,16 +261,6 @@ static inline void ena_rx_mbuf_prepare(struct rte_mbuf *mbuf,
+ {
+ 	uint64_t ol_flags = 0;
+ 
+-	if (ena_rx_ctx->l4_proto == ENA_ETH_IO_L4_PROTO_TCP)
+-		ol_flags |= PKT_TX_TCP_CKSUM;
+-	else if (ena_rx_ctx->l4_proto == ENA_ETH_IO_L4_PROTO_UDP)
+-		ol_flags |= PKT_TX_UDP_CKSUM;
+-
+-	if (ena_rx_ctx->l3_proto == ENA_ETH_IO_L3_PROTO_IPV4)
+-		ol_flags |= PKT_TX_IPV4;
+-	else if (ena_rx_ctx->l3_proto == ENA_ETH_IO_L3_PROTO_IPV6)
+-		ol_flags |= PKT_TX_IPV6;
+-
+ 	if (unlikely(ena_rx_ctx->l4_csum_err))
+ 		ol_flags |= PKT_RX_L4_CKSUM_BAD;
+ 	if (unlikely(ena_rx_ctx->l3_csum_err))