[dpdk-dev] [PATCH v2 1/1] ena: fix SIGFPE with 0 rx queues

[Michał Krawczyk]

2018-06-26 18:53 GMT+02:00 Ferruh Yigit <ferruh.yigit at intel.com>:
> On 6/26/2018 6:38 PM, Ferruh Yigit wrote:
>> From: Daria Kolistratova <daria.kolistratova at intel.com>
>
> I re-send the Daria's patch, somehow it didn't appeared in mail list and patchwork.
>
>>
>> When the number of rx queues is 0
>> (what can be when application does not receive)
>> failed with SIGFPE. It happens when the application
>> is also requesting ETH_MQ_RX_RSS_FLAG in the
>> rte_dev->data->dev_conf.rxmode.mq_mode.
>> Fixed adding zero rx queues check.
>>
>> Signed-off-by: Daria Kolistratova <daria.kolistratova at intel.com>
Acked-by: Michal Krawczyk <mk at semihalf.com>
>> ---
>>  drivers/net/ena/ena_ethdev.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c
>> index 9ae73e331..3249b9d92 100644
>> --- a/drivers/net/ena/ena_ethdev.c
>> +++ b/drivers/net/ena/ena_ethdev.c
>> @@ -1052,7 +1052,7 @@ static int ena_start(struct rte_eth_dev *dev)
>>               return rc;
>>
>>       if (adapter->rte_dev->data->dev_conf.rxmode.mq_mode &
>> -         ETH_MQ_RX_RSS_FLAG) {
>> +         ETH_MQ_RX_RSS_FLAG && adapter->rte_dev->data->nb_rx_queues > 0) {
>>               rc = ena_rss_init_default(adapter);
>>               if (rc)
>>                       return rc;
>>
>