diff mbox series

[v1,09/12] net/octeontx2: fix the jumbo frame flag condition for mtu

Message ID 20201209031628.29572-10-stevex.yang@intel.com (mailing list archive)
State Superseded, archived
Delegated to: Ferruh Yigit
Headers
Series fix rx packets dropped issue |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Steve Yang Dec. 9, 2020, 3:16 a.m. UTC 
  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 'RTE_ETHER_MTU'.

Fixes: 0e2efd02db58 ("net/octeontx2: add MTU set operation")

Signed-off-by: Steve Yang <stevex.yang@intel.com>
---
 drivers/net/octeontx2/otx2_ethdev_ops.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Sunil Kumar Kori Dec. 21, 2020, 7:16 a.m. UTC | #1 
>-----Original Message-----
>From: Steve Yang <stevex.yang@intel.com>
>Sent: Wednesday, December 9, 2020 8:46 AM
>To: dev@dpdk.org
>Cc: hemant.agrawal@nxp.com; sachin.saxena@oss.nxp.com;
>jia.guo@intel.com; haiyue.wang@intel.com; xavier.huwei@huawei.com;
>humin29@huawei.com; yisen.zhuang@huawei.com; oulijun@huawei.com;
>beilei.xing@intel.com; jingjing.wu@intel.com; qiming.yang@intel.com;
>qi.z.zhang@intel.com; rosen.xu@intel.com; Harman Kalra
><hkalra@marvell.com>; Jerin Jacob Kollanukkaran <jerinj@marvell.com>;
>Nithin Kumar Dabilpuram <ndabilpuram@marvell.com>; Kiran Kumar
>Kokkilagadda <kirankumark@marvell.com>; Rasesh Mody
><rmody@marvell.com>; Shahed Shaikh <shshaikh@marvell.com>;
>andrew.rybchenko@oktetlabs.ru; Maciej Czekaj [C] <mczekaj@marvell.com>;
>wei.dai@intel.com; fengchunsong@huawei.com; lihuisong@huawei.com;
>ferruh.yigit@intel.com; chenhao164@huawei.com; helin.zhang@intel.com;
>konstantin.ananyev@intel.com; yanglong.wu@intel.com;
>xiaolong.ye@intel.com; ting.xu@intel.com; xiaoyun.li@intel.com;
>wenzhuo.lu@intel.com; andy.pei@intel.com; dan.wei@intel.com; Sunil
>Kumar Kori <skori@marvell.com>; Vamsi Krishna Attunuru
><vattunuru@marvell.com>; sony.chacko@qlogic.com;
>bruce.richardson@intel.com; ivan.malov@oktetlabs.ru;
>zyta.szpak@semihalf.com; slawomir.rosek@semihalf.com;
>rad@semihalf.com; Steve Yang <stevex.yang@intel.com>
>Subject: [EXT] [PATCH v1 09/12] net/octeontx2: fix the jumbo frame flag
>condition for mtu
>
>External Email
>
>----------------------------------------------------------------------
>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 'RTE_ETHER_MTU'.
>
>Fixes: 0e2efd02db58 ("net/octeontx2: add MTU set operation")
>
>Signed-off-by: Steve Yang <stevex.yang@intel.com>
>---
> drivers/net/octeontx2/otx2_ethdev_ops.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
>diff --git a/drivers/net/octeontx2/otx2_ethdev_ops.c
>b/drivers/net/octeontx2/otx2_ethdev_ops.c
>index b36d37b9f7..170b8fbd91 100644
>--- a/drivers/net/octeontx2/otx2_ethdev_ops.c
>+++ b/drivers/net/octeontx2/otx2_ethdev_ops.c
>@@ -58,7 +58,7 @@ otx2_nix_mtu_set(struct rte_eth_dev *eth_dev, uint16_t
>mtu)
> 	if (rc)
> 		return rc;
>
>-	if (frame_size > RTE_ETHER_MAX_LEN)
>+	if (mtu > RTE_ETHER_MTU)
> 		dev->rx_offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
> 	else
> 		dev->rx_offloads &= ~DEV_RX_OFFLOAD_JUMBO_FRAME;
>--
>2.17.1

Acked-by: Sunil Kumar Kori <skori@mavell.com>
diff mbox series

Patch

diff --git a/drivers/net/octeontx2/otx2_ethdev_ops.c b/drivers/net/octeontx2/otx2_ethdev_ops.c
index b36d37b9f7..170b8fbd91 100644
--- a/drivers/net/octeontx2/otx2_ethdev_ops.c
+++ b/drivers/net/octeontx2/otx2_ethdev_ops.c
@@ -58,7 +58,7 @@  otx2_nix_mtu_set(struct rte_eth_dev *eth_dev, uint16_t mtu)
 	if (rc)
 		return rc;
 
-	if (frame_size > RTE_ETHER_MAX_LEN)
+	if (mtu > RTE_ETHER_MTU)
 		dev->rx_offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
 	else
 		dev->rx_offloads &= ~DEV_RX_OFFLOAD_JUMBO_FRAME;