[dpdk-dev] [PATCH 4/4] net/vmxnet3: enable lro

[Yong Wang]

The current implementation of jumbo frame rx can be used for
LRO directly without changes.  This change enables device
LRO if requested.

Note that since jumbo frame uses both ring0 and ring1, it
cannot be enabled in UPT (VMDirectPath) mode.

Signed-off-by: Yong Wang <yongwang at vmware.com>
---
 drivers/net/vmxnet3/vmxnet3_ethdev.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/net/vmxnet3/vmxnet3_ethdev.c b/drivers/net/vmxnet3/vmxnet3_ethdev.c
index 6b1e720..0d7732d 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethdev.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethdev.c
@@ -540,6 +540,11 @@ vmxnet3_setup_driver_shared(struct rte_eth_dev *dev)
 	if (dev->data->dev_conf.rxmode.hw_ip_checksum)
 		devRead->misc.uptFeatures |= VMXNET3_F_RXCSUM;
 
+	if (dev->data->dev_conf.rxmode.enable_lro) {
+		devRead->misc.uptFeatures |= VMXNET3_F_LRO;
+		devRead->misc.maxNumRxSG = 0;
+	}
+
 	if (port_conf.rxmode.mq_mode == ETH_MQ_RX_RSS) {
 		ret = vmxnet3_rss_configure(dev);
 		if (ret != VMXNET3_SUCCESS)
@@ -741,7 +746,8 @@ vmxnet3_dev_info_get(__rte_unused struct rte_eth_dev *dev,
 	dev_info->rx_offload_capa =
 		DEV_RX_OFFLOAD_VLAN_STRIP |
 		DEV_RX_OFFLOAD_UDP_CKSUM |
-		DEV_RX_OFFLOAD_TCP_CKSUM;
+		DEV_RX_OFFLOAD_TCP_CKSUM |
+		DEV_RX_OFFLOAD_TCP_LRO;
 
 	dev_info->tx_offload_capa =
 		DEV_TX_OFFLOAD_VLAN_INSERT |
-- 
1.9.1