Nirmal,
Here are the changes that I've been using to allow jumbo frames with dpdk-19.08
and
pktgen-19.10.0:
diff -r default/dpdk-19.08/lib/librte_mbuf/rte_mbuf.h
jumbo/dpdk-19.08/lib/librte_mbuf/rte_mbuf.h
462c462
< #define RTE_MBUF_DEFAULT_DATAROOM 2048
---
> #define RTE_MBUF_DEFAULT_DATAROOM 9600
diff -r default/dpdk-19.08/lib/librte_net/rte_ether.h
jumbo/dpdk-19.08/lib/librte_net/rte_ether.h
33c33
< #define RTE_ETHER_MAX_LEN 1518 /**< Maximum frame len, including CRC. */
---
> #define RTE_ETHER_MAX_LEN 9600 /**< Maximum frame len, including CRC. */
diff -r default/pktgen-19.10.0/app/pktgen.c jumbo/pktgen-19.10.0/app/pktgen.c
749c749
< else if ( (plen >= 1024) && (plen <= PG_ETHER_MAX_LEN))
---
> else if ( (plen >= 1024) && (plen <= 1518))
753c753
< else if (plen > PG_ETHER_MAX_LEN)
---
> else if (plen > 1518)
diff -r default/pktgen-19.10.0/lib/common/pg_inet.h
jumbo/pktgen-19.10.0/lib/common/pg_inet.h
379,380c379,380
< #define ETH_MTU 1500 /* Max MTU for Ethernet */
< #define ETH_MAX_PKT 1518 /* Max Ethernet frame size */
---
> #define ETH_MTU 9600 /* Max MTU for Ethernet */
> #define ETH_MAX_PKT 9600 /* Max Ethernet frame size */
- Lee Roberts
-----Original Message-----
From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Nirmal Sarkar
Sent: Monday, November 18, 2019 10:26 AM
To: dev@dpdk.org
Subject: [dpdk-dev] Jumbo Frame in pktgen & dpdk-pktgen
Hello,
I'm trying to explore pktgen and dpdk-pktgen with Jumbo frame.
I'm using ubuntu-18.04 system where pktgen is a kernel module and I don't have
any provision to set it for Jumbo frame.
Can you please suggest how to configure Jumbo frame in pktgen ?
In dpdk source code, I've modified RTE_MBUF_DEFAULT_DATAROOM [
*lib/librte_mbuf/rte_mbuf.h*] value with 9K and built.
During testing, I could not send packet size more than 1500 byte.
What is the suggestion to overcome this problem ?
Regards,
N. Sarkar
