[dpdk-dev] [PATCH 3/5] net/virtio: do not touch Tx offload flags
David Marchand
david.marchand at redhat.com
Thu Apr 1 11:52:41 CEST 2021
Tx offload flags are of the application responsibility.
Leave the mbuf alone and use a local storage for implicit tcp checksum
offloading in case of TSO.
Signed-off-by: David Marchand <david.marchand at redhat.com>
---
drivers/net/virtio/virtqueue.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/net/virtio/virtqueue.h b/drivers/net/virtio/virtqueue.h
index 71b66f3208..2e8826bc28 100644
--- a/drivers/net/virtio/virtqueue.h
+++ b/drivers/net/virtio/virtqueue.h
@@ -618,10 +618,12 @@ virtqueue_xmit_offload(struct virtio_net_hdr *hdr,
uint8_t offload)
{
if (offload) {
+ uint64_t csum_l4 = cookie->ol_flags & PKT_TX_L4_MASK;
+
if (cookie->ol_flags & PKT_TX_TCP_SEG)
- cookie->ol_flags |= PKT_TX_TCP_CKSUM;
+ csum_l4 |= PKT_TX_TCP_CKSUM;
- switch (cookie->ol_flags & PKT_TX_L4_MASK) {
+ switch (csum_l4) {
case PKT_TX_UDP_CKSUM:
hdr->csum_start = cookie->l2_len + cookie->l3_len;
hdr->csum_offset = offsetof(struct rte_udp_hdr,
--
2.23.0
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