[dpdk-dev] how to use multiple RX queues on the same port
Hi Pablo, > -Original Message- > From: De Lara Guarch, Pablo [mailto:pablo.de.lara.guarch at intel.com] > > Hi all, > > To avoid rx_nombuf packet drops, I'm trying to configure a DPDK port > > to use more than 1 RX queue... so I'm trying (on a 10Gbps card) to use 4 RX > queues. > > The call to rte_eth_dev_configure() and the 4 calls to > > rte_eth_rx_queue_setup() succeed but then via the > > rte_eth_rx_queue_count() API I see that only the first RX queue is > > used. The remaining 3 seems unused... am I missing something? > > How are you configuring the port? Are you using RSS? I guess that's what you > are looking for, so make sure that you are using the right > mq_mode(ETH_MQ_RX_RSS). No, I was not using RSS and this was indeed the problem. I enabled it as is done in e.g., l3fwd example, i.e., using the ETH_RSS_IP for the hash functions to apply. I now see that all 4 RX queues are correctly used. Thanks!! Francesco
[dpdk-dev] how to use multiple RX queues on the same port
Hi Francesco, > -Original Message- > From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Montorsi, > Francesco > Sent: Monday, October 26, 2015 5:23 PM > To: dev at dpdk.org > Subject: [dpdk-dev] how to use multiple RX queues on the same port > > Hi all, > To avoid rx_nombuf packet drops, I'm trying to configure a DPDK port to use > more than 1 RX queue... so I'm trying (on a 10Gbps card) to use 4 RX queues. > The call to rte_eth_dev_configure() and the 4 calls to > rte_eth_rx_queue_setup() succeed but then via the > rte_eth_rx_queue_count() API I see that only the first RX queue is used. The > remaining 3 seems unused... am I missing something? How are you configuring the port? Are you using RSS? I guess that's what you are looking for, so make sure that you are using the right mq_mode(ETH_MQ_RX_RSS). Which NIC are you using and which traffic type? Because if you don't vary the traffic, you won't see any traffic in all queues. Pablo > > > Thanks! > > Francesco Montorsi
[dpdk-dev] how to use multiple RX queues on the same port
Hi all, To avoid rx_nombuf packet drops, I'm trying to configure a DPDK port to use more than 1 RX queue... so I'm trying (on a 10Gbps card) to use 4 RX queues. The call to rte_eth_dev_configure() and the 4 calls to rte_eth_rx_queue_setup() succeed but then via the rte_eth_rx_queue_count() API I see that only the first RX queue is used. The remaining 3 seems unused... am I missing something? Thanks! Francesco Montorsi
