[PATCH] net/nfp: set the appropriate initialized value of flbufsz
Chaoyong He
chaoyong.he at corigine.com
Mon Oct 10 08:48:15 CEST 2022
From: Peng Zhang <peng.zhang at corigine.com>
When the testpmd app start-up with parameter max-pkt-len, it will set MTU.
But the initialized value of flubfsz is inappropriate, if the value of
flbufsz is smaller than the valude of max-pkt-len, the testpmd app will
start fail.
Fixes: 5c305e218f15 ("net/nfp: fix initialization")
Cc: stable at dpdk.org
Signed-off-by: Peng Zhang <peng.zhang at corigine.com>
Reviewed-by: Chaoyong He <chaoyong.he at corigine.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund at corigine.com>
---
drivers/net/nfp/nfp_ethdev.c | 2 +-
drivers/net/nfp/nfp_ethdev_vf.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/nfp/nfp_ethdev.c b/drivers/net/nfp/nfp_ethdev.c
index 5cdd34e588..b95e623f1f 100644
--- a/drivers/net/nfp/nfp_ethdev.c
+++ b/drivers/net/nfp/nfp_ethdev.c
@@ -517,7 +517,7 @@ nfp_net_init(struct rte_eth_dev *eth_dev)
hw->cap = nn_cfg_readl(hw, NFP_NET_CFG_CAP);
hw->max_mtu = nn_cfg_readl(hw, NFP_NET_CFG_MAX_MTU);
hw->mtu = RTE_ETHER_MTU;
- hw->flbufsz = RTE_ETHER_MTU;
+ hw->flbufsz = hw->max_mtu;
/* VLAN insertion is incompatible with LSOv2 */
if (hw->cap & NFP_NET_CFG_CTRL_LSO2)
diff --git a/drivers/net/nfp/nfp_ethdev_vf.c b/drivers/net/nfp/nfp_ethdev_vf.c
index d304d78d34..47acb4c60e 100644
--- a/drivers/net/nfp/nfp_ethdev_vf.c
+++ b/drivers/net/nfp/nfp_ethdev_vf.c
@@ -396,7 +396,7 @@ nfp_netvf_init(struct rte_eth_dev *eth_dev)
hw->cap = nn_cfg_readl(hw, NFP_NET_CFG_CAP);
hw->max_mtu = nn_cfg_readl(hw, NFP_NET_CFG_MAX_MTU);
hw->mtu = RTE_ETHER_MTU;
- hw->flbufsz = RTE_ETHER_MTU;
+ hw->flbufsz = hw->max_mtu;
/* VLAN insertion is incompatible with LSOv2 */
if (hw->cap & NFP_NET_CFG_CTRL_LSO2)
--
2.27.0
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