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Patch ENA PMD to skip setting tx flags in rx path

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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>
This commit is contained in:
Matthew Smith
2017-12-18 14:19:07 -06:00
committed by Damjan Marion
parent 8554f8adcc
commit a5fb2cf8be
2 changed files with 22 additions and 1 deletions
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21
dpdk/dpdk-17.11_patches/0001-ena-pmd-no-tx-flags.patch Normal file
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@ -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))