From 3ec35c64be8f93619a04e725bf4af9ecb5329ef0 Mon Sep 17 00:00:00 2001 From: Steve Yang Date: Mon, 18 Jan 2021 07:04:12 +0000 Subject: [PATCH] net/hns3: fix jumbo frame flag condition for MTU set The jumbo frame uses the 'RTE_ETHER_MAX_LEN' as boundary condition, but the Ether overhead is larger than 18 when it supports dual VLAN tags. That will cause the jumbo flag rx offload is wrong when MTU size is 'RTE_ETHER_MTU'. This fix will change the boundary condition with 'HSN3_DEFAULT_FRAME_LEN', that perhaps impacts the cases of the jumbo frame related. Fixes: 1f5ca0b460cd ("net/hns3: support some device operations") Fixes: a5475d61fa34 ("net/hns3: support VF") Cc: stable@dpdk.org Signed-off-by: Steve Yang Acked-by: Lijun Ou --- drivers/net/hns3/hns3_ethdev.c | 2 +- drivers/net/hns3/hns3_ethdev_vf.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/hns3/hns3_ethdev.c b/drivers/net/hns3/hns3_ethdev.c index 90544fe328..bf633a3d71 100644 --- a/drivers/net/hns3/hns3_ethdev.c +++ b/drivers/net/hns3/hns3_ethdev.c @@ -2467,7 +2467,7 @@ hns3_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu) } rte_spinlock_lock(&hw->lock); - is_jumbo_frame = frame_size > RTE_ETHER_MAX_LEN ? true : false; + is_jumbo_frame = frame_size > HNS3_DEFAULT_FRAME_LEN ? true : false; frame_size = RTE_MAX(frame_size, HNS3_DEFAULT_FRAME_LEN); /* diff --git a/drivers/net/hns3/hns3_ethdev_vf.c b/drivers/net/hns3/hns3_ethdev_vf.c index f09cabcd82..ef03fb1c4e 100644 --- a/drivers/net/hns3/hns3_ethdev_vf.c +++ b/drivers/net/hns3/hns3_ethdev_vf.c @@ -928,7 +928,7 @@ hns3vf_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu) rte_spinlock_unlock(&hw->lock); return ret; } - if (frame_size > RTE_ETHER_MAX_LEN) + if (mtu > RTE_ETHER_MTU) dev->data->dev_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME; else -- 2.20.1