Can I use rte_pktmbuf_chain to chain multiple mbuffs for calling only single tx_eth_burst API

[Ferruh Yigit]

On 2/9/2022 6:03 PM, Ansar Kannankattil wrote:
> Hi
> My intention is to decrease the number of rte_tx_eth_burst calls, I know that mentioning nb_pkts will result in sending multiple packets in a single call.
> But providing nb_pkts=1 and posting a head mbuff having number of mbuffs linked with it will results sending multiple packets

If driver supports, you can do it.
Driver should expose this capability via RTE_ETH_TX_OFFLOAD_MULTI_SEGS flag,
in 'dev_info->tx_offload_capa'.

> If not, what is the use case of linking multiple mbuffs together

It is also used in Rx path (again if driver supports).