Re: pktgen offload checksum flag not able to make it work with pacp packets.

I have not enabled that feature myself, but I would expect it to work as long as the hardware does. What does the docs say about enabling hardware offload support? Did you look at the following files:

ip_reassembly/ipv4_rsmbl.h:     m->ol_flags |= PKT_TX_IP_CKSUM;
ipv4_frag/rte_ipv4_frag.h:              out_pkt->ol_flags |= PKT_TX_IP_CKSUM;

Thanks
++Keith

Keith Wiles, Principal Technologist for Networking member of the CTO office, Wind River
mobile 940.213.5533
[Powering 30 Years of Innovation]<http://www.windriver.com/announces/wr30/>

On Jan 24, 2014, at 12:54 PM, Banashankar KV <banveerad-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org<mailto:banveerad-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>> wrote:

I was modifying a packet in pktgen_pcap_mbuf_ctor()
and after modifying I wanted to offload the checksum calculation to h/w
so I am setting these flags in pktgen_pcap_mbuf_ctor function.

m->pkt.vlan_macip.f.l2_len = sizeof(struct ether_hdr);
m->pkt.vlan_macip.f.l3_len = sizeof(struct ipv4_hdr);

m->ol_flags = PKT_TX_IP_CKSUM


I even tried with setting .txq_flags = 0 in rte_eth_txconf struct in pktgen.c.

But still not able to get the h/w checksum. Am I missing anything ?



Thanks
Banashankar