d/numam-dpdk
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

net/octeontx: fix jumbo frame flag condition for MTU set

Browse Source 
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' and
overhead, that perhaps impacts the cases of the jumbo frame related.

Fixes: 3151e6a687a3 ("net/octeontx: support MTU")
Cc: stable@dpdk.org

Signed-off-by: Steve Yang <stevex.yang@intel.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Harman Kalra <hkalra@marvell.com>
This commit is contained in:
Steve Yang 2021-01-18 07:04:17 +00:00 committed by Ferruh Yigit
parent 6f4edbadea
commit e6ad69e40f
2 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/octeontx/octeontx_ethdev.c
View File

@ -552,7 +552,7 @@ octeontx_dev_mtu_set(struct rte_eth_dev *eth_dev, uint16_t mtu)
if (rc)
return rc;
if (frame_size > RTE_ETHER_MAX_LEN)
if (frame_size > OCCTX_L2_MAX_LEN)
nic->rx_offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
else
nic->rx_offloads &= ~DEV_RX_OFFLOAD_JUMBO_FRAME;

1
drivers/net/octeontx/octeontx_ethdev.h
View File

@ -44,6 +44,7 @@
/* ETH_HLEN+ETH_FCS+2*VLAN_HLEN */
#define OCCTX_L2_OVERHEAD (RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN + \
OCCTX_MAX_VTAG_ACT_SIZE)
#define OCCTX_L2_MAX_LEN (RTE_ETHER_MTU + OCCTX_L2_OVERHEAD)
/* Since HW FRS includes NPC VTAG insertion space, user has reduced FRS */
#define OCCTX_MAX_FRS \