[dpdk-dev] [RFC] eventdev: replace mbufs with events in Rx callback

Jerin Jacob Kollanukkaran jerinj at marvell.com
Thu May 9 09:53:43 CEST 2019


> -----Original Message-----
> From: Nikhil Rao <nikhil.rao at intel.com>
> Sent: Thursday, May 9, 2019 5:27 AM
> To: Jerin Jacob Kollanukkaran <jerinj at marvell.com>
> Cc: dev at dpdk.org; Nikhil Rao <nikhil.rao at intel.com>
> Subject: [EXT] [RFC] eventdev: replace mbufs with events in Rx callback
> 
> Replace the mbuf pointer array in the event eth Rx adapter callback with an
> event array instead of an mbuf array. Using an event array allows the
> application to change attributes of the events enqueued by the SW adapter.

Looks good to me. If I understand it correctly, It is applicable only to SW adapter.
If not, let us know.

Please remove the EXPERIMENTAL tag after the change.

> Signed-off-by: Nikhil Rao <nikhil.rao at intel.com>
> ---
> 
> Hi All,
> 
> Please review the new interface proposed below.
> 
>  lib/librte_eventdev/rte_event_eth_rx_adapter.h | 57 +++++++++++++++--
> ---------
>  1 file changed, 34 insertions(+), 23 deletions(-)
> 
> 
> + *  Packets dropped by callback.
>   * @return
> - *  Returns the number of mbufs should be enqueued to eventdev
> + *  - The number of events to be enqueued by the SW adapter.
>   */
>  typedef uint16_t (*rte_event_eth_rx_adapter_cb_fn)(uint16_t
> eth_dev_id,
>  						uint16_t queue_id,
>  						uint32_t enqueue_buf_size,
>  						uint32_t
> enqueue_buf_count,
> -						struct rte_mbuf **mbuf,
> -						uint16_t nb_mbuf,
> +						struct rte_event *ev,
> +						uint16_t nb_event,
>  						void *cb_arg,
> -						struct rte_mbuf **enq_buf);
> +						uint16_t *nb_dropped);
> 
>  /**
>   * @warning
> --
> 1.8.3.1



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