[PATCH v3 2/3] test: allow larger packet sizes

[Stephen Hemminger]

On Fri, 9 Jan 2026 16:00:00 +0100
Morten Brørup <mb at smartsharesystems.com> wrote:

> >  generate_packet_burst(struct rte_mempool *mp, struct rte_mbuf
> > **pkts_burst,
> >  		struct rte_ether_hdr *eth_hdr, uint8_t vlan_enabled,
> >  		void *ip_hdr, uint8_t ipv4, struct rte_udp_hdr *udp_hdr,
> > -		int nb_pkt_per_burst, uint8_t pkt_len, uint8_t
> > nb_pkt_segs);
> > +		int nb_pkt_per_burst, uint16_t pkt_len, uint8_t
> > nb_pkt_segs);  
> 
> The pkt_len field in rte_mbuf is uint32_t.
> You could upgrade the packet length here to uint32_t too, instead of upgrading to only uint16_t.

This code is generating UDP packets, and the maximum size allowed with UDP is UINT16_MAX.
IP packet length is also limited to 16 bits.

But you comment did motivate fixing to allow more packet segments.