[PATCH] eventdev/eth_tx: fix queue delete

[Jayatheerthan, Jay]

Looks good to me.

Acked-by: Jay Jayatheerthan <jay.jayatheerthan at intel.com>

-Jay



> -----Original Message-----
> From: Naga Harish K, S V <s.v.naga.harish.k at intel.com>
> Sent: Thursday, June 23, 2022 3:35 PM
> To: Jayatheerthan, Jay <jay.jayatheerthan at intel.com>; jerinj at marvell.com
> Cc: dev at dpdk.org; stable at dpdk.org
> Subject: [PATCH] eventdev/eth_tx: fix queue delete
> 
> Add spinlock protection in queue delete function.
> This protects the data path while the queue delete operation
> is in progress.
> 
> Fixes: a3bbf2e09756 ("eventdev: add eth Tx adapter implementation")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Naga Harish K S V <s.v.naga.harish.k at intel.com>
> ---
>  lib/eventdev/rte_event_eth_tx_adapter.c | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
> 
> diff --git a/lib/eventdev/rte_event_eth_tx_adapter.c b/lib/eventdev/rte_event_eth_tx_adapter.c
> index c700fb7b1f..b4b37f1cae 100644
> --- a/lib/eventdev/rte_event_eth_tx_adapter.c
> +++ b/lib/eventdev/rte_event_eth_tx_adapter.c
> @@ -891,9 +891,10 @@ txa_service_queue_del(uint8_t id,
> 
>  	txa = txa_service_id_to_data(id);
> 
> +	rte_spinlock_lock(&txa->tx_lock);
>  	tqi = txa_service_queue(txa, port_id, tx_queue_id);
>  	if (tqi == NULL || !tqi->added)
> -		return 0;
> +		goto ret_unlock;
> 
>  	tb = tqi->tx_buf;
>  	tqi->added = 0;
> @@ -903,6 +904,9 @@ txa_service_queue_del(uint8_t id,
>  	txa->txa_ethdev[port_id].nb_queues--;
> 
>  	txa_service_queue_array_free(txa, port_id);
> +
> +ret_unlock:
> +	rte_spinlock_unlock(&txa->tx_lock);
>  	return 0;
>  }
> 
> --
> 2.25.1