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Date: Fri, 27 Jan 2017 21:36:29 +0000
From: Bruce Richardson <bruce.richardson@intel.com>
To: Sridhar Pitchai <sridhar.pitchai@outlook.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>
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Subject: Re: [dpdk-dev] rte_eth_from_rings
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On Fri, Jan 27, 2017 at 07:16:25PM +0000, Sridhar Pitchai wrote:
> Hi,
> 
> I am trying to write a data path for packets punted to CPU(slowpath) from vender silicon like broadcom. I am planing to use "rte_eth_from_rings" like model where I will be able to read and write to the ring for the packets punted from vendor chip.
> 
> 
> the eth_dev abstraction provided by "rte_eth_from_rings" helps to build the dpdk data path. Can someone help me on how to read and write to the rings that is emulating the eth_dev.
> 
>
To use the rings like an ethdev just use rte_eth_rx_burst and
rte_eth_tx_burst, passing in the port id of your newly created rings
ethdev. To access them directly as rings, just use the ring
enqueue/dequeue functions passing in the ring pointer as normal.

Regards,
/Bruce