[dpdk-dev] [PATCH v3 03/17] app/test: eventdev link all queues before start

[Jerin Jacob]

On Fri, Feb 17, 2017 at 02:53:58PM +0000, Harry van Haaren wrote:
> The software eventdev can lock-up if not all queues are
> linked to a port. For this reason, the software evendev
> fails to start if queues are not linked to anything.
> 
> This commit creates dummy links from all queues to port
> 0 in the eventdev setup function and start/stop test,
> which would otherwise fail due to unlinked queues.
> 
> Signed-off-by: Harry van Haaren <harry.van.haaren at intel.com>
> ---
>  app/test/test_eventdev.c | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
> 
> diff --git a/app/test/test_eventdev.c b/app/test/test_eventdev.c
> index 756bc32..7d4160d 100644
> --- a/app/test/test_eventdev.c
> +++ b/app/test/test_eventdev.c
> @@ -545,6 +545,14 @@ test_eventdev_start_stop(void)
>  		TEST_ASSERT_SUCCESS(ret, "Failed to setup port%d", i);
>  	}
>  
> +	for (i = 0; i < rte_event_queue_count(TEST_DEV_ID); i++) {
> +		uint8_t queue = i;
> +		uint8_t prio  = 0;
> +		ret = rte_event_port_link(TEST_DEV_ID, 0, &queue, &prio, 1);

You can replace the for loop and pass NULL to link all the queues.
i.e rte_event_port_link(TEST_DEV_ID, 0, NULL, NULL, 0);


> +		TEST_ASSERT(ret == 1, "Failed to link port, device %d",
> +			    TEST_DEV_ID);
> +	}
> +
>  	ret = rte_event_dev_start(TEST_DEV_ID);
>  	TEST_ASSERT_SUCCESS(ret, "Failed to start device%d", TEST_DEV_ID);
>  
> @@ -571,6 +579,14 @@ eventdev_setup_device(void)
>  		TEST_ASSERT_SUCCESS(ret, "Failed to setup port%d", i);
>  	}
>  
> +	for (i = 0; i < rte_event_queue_count(TEST_DEV_ID); i++) {
> +		uint8_t queue = i;
> +		uint8_t prio  = 0;
> +		ret = rte_event_port_link(TEST_DEV_ID, 0, &queue, &prio, 1);
> +		TEST_ASSERT(ret == 1, "Failed to link port, device %d",
> +			    TEST_DEV_ID);
> +	}
> +
>  	ret = rte_event_dev_start(TEST_DEV_ID);
>  	TEST_ASSERT_SUCCESS(ret, "Failed to start device%d", TEST_DEV_ID);
>  
> -- 
> 2.7.4
>