[dpdk-stable] [dpdk-dev] [PATCH 1/3] net/virtio: reject deferred start Rx queue setup

[Andrew Rybchenko]

Hi Kevin,

On 10/1/19 7:29 PM, Kevin Traynor wrote:
> Hi,
>
> On 01/10/2019 16:44, Andrew Rybchenko wrote:
>> From: Dilshod Urazov <Dilshod.Urazov at oktetlabs.ru>
>>
>> Deferred start Rx queue is not supported by the driver.
>>
>> Fixes: 0748be2cf9a2 ("ethdev: queue start and stop")
>> Cc: stable at dpdk.org
>>
>> Signed-off-by: Dilshod Urazov <Dilshod.Urazov at oktetlabs.ru>
>> Signed-off-by: Andrew Rybchenko <arybchenko at solarflare.com>
>> ---
>>   drivers/net/virtio/virtio_rxtx.c | 5 +++++
>>   1 file changed, 5 insertions(+)
>>
>> diff --git a/drivers/net/virtio/virtio_rxtx.c b/drivers/net/virtio/virtio_rxtx.c
>> index 929aa4cbd..9c8c617f7 100644
>> --- a/drivers/net/virtio/virtio_rxtx.c
>> +++ b/drivers/net/virtio/virtio_rxtx.c
>> @@ -929,6 +929,11 @@ virtio_dev_rx_queue_setup(struct rte_eth_dev *dev,
>>   
> const struct rte_eth_rxconf *rx_conf __rte_unused,
> 				     ^^^^^^^^^^^^
> The unused can be removed now

Thanks, will fix in v2.

>>   	PMD_INIT_FUNC_TRACE();
>>   
>> +	if (rx_conf->rx_deferred_start) {
>> +		PMD_INIT_LOG(ERR, "Rx deferred start is not supported");
>> +		return -EINVAL;
>> +	}
>> +
>>   	if (nb_desc == 0 || nb_desc > vq->vq_nentries)
>>   		nb_desc = vq->vq_nentries;
>>   	vq->vq_free_cnt = RTE_MIN(vq->vq_free_cnt, nb_desc);
>>