[dpdk-dev] [PATCH 7/7] examples/eventdev_pipeline: add new Rx RSS hash offload
Jerin Jacob Kollanukkaran
jerinj at marvell.com
Fri Aug 16 08:01:18 CEST 2019
> -----Original Message-----
> From: pbhagavatula at marvell.com <pbhagavatula at marvell.com>
> Sent: Friday, August 16, 2019 11:25 AM
> To: Jerin Jacob Kollanukkaran <jerinj at marvell.com>; ferruh.yigit at intel.com;
> Harry van Haaren <harry.van.haaren at intel.com>
> Cc: dev at dpdk.org; Pavan Nikhilesh Bhagavatula
> <pbhagavatula at marvell.com>
> Subject: [dpdk-dev] [PATCH 7/7] examples/eventdev_pipeline: add new Rx
> RSS hash offload
>
> From: Pavan Nikhilesh <pbhagavatula at marvell.com>
>
> Since pipeline_generic uses `rte_mbuf::hash::rss` add the new Rx offload flag
> `DEV_RX_OFFLOAD_RSS_HASH` to inform PMD to copy the RSS hash result
> into the mbuf.
>
> Signed-off-by: Pavan Nikhilesh <pbhagavatula at marvell.com>
> ---
> examples/eventdev_pipeline/main.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/examples/eventdev_pipeline/main.c
> b/examples/eventdev_pipeline/main.c
> index f4e57f541..f08253cc3 100644
> --- a/examples/eventdev_pipeline/main.c
> +++ b/examples/eventdev_pipeline/main.c
> @@ -278,6 +278,10 @@ port_init(uint8_t port, struct rte_mempool
> *mbuf_pool)
> if (dev_info.tx_offload_capa &
> DEV_TX_OFFLOAD_MBUF_FAST_FREE)
> port_conf.txmode.offloads |=
> DEV_TX_OFFLOAD_MBUF_FAST_FREE;
> +
> + if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_RSS_HASH)
> + port_conf.rxmode.offloads |=
> DEV_RX_OFFLOAD_RSS_HASH;
We need this only when Rx adapter in SW mode.
> +
> rx_conf = dev_info.default_rxconf;
> rx_conf.offloads = port_conf.rxmode.offloads;
>
> --
> 2.22.0
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