From: Ferruh Yigit <ferruh.yigit@intel.com>
To: Ansar Kannankattil <ansarkannankat@gmail.com>, <dev@dpdk.org>
Subject: Re: Can I use rte_pktmbuf_chain to chain multiple mbuffs for calling only single tx_eth_burst API
Date: Wed, 9 Feb 2022 22:18:24 +0000 [thread overview]
Message-ID: <fa4dcbb4-00aa-8691-69a7-9de173d3698d@intel.com> (raw)
In-Reply-To: <CAPA_rBexb_JKhGtxp4uQ1M-5F0RXpvpOHxDCso5VxmjRxkL1eA@mail.gmail.com>
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).
next prev parent reply other threads:[~2022-02-09 22:18 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-09 18:03 Can I use rte_pktmbuf_chain to chain multiple mbuffs for calling only single tx_eth_burst API Ansar Kannankattil
2022-02-09 20:56 ` Stephen Hemminger
2022-02-09 22:18 ` Ferruh Yigit [this message]
2022-02-09 22:46 ` Stephen Hemminger
2022-02-10 8:56 ` Ferruh Yigit
2022-02-10 10:37 ` Ansar Kannankattil
2022-02-10 10:43 ` Ferruh Yigit
2022-02-10 11:36 ` Bruce Richardson
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