[dpdk-dev] [PATCH v2 2/4] ethdev: prevent changing of nb_q_per_pool in rte_eth_dev_check_mq_mode()

[Ouyang, Changchun]

> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Pawel Wodkowski
> Sent: Monday, January 19, 2015 9:02 PM
> To: dev at dpdk.org
> Subject: [dpdk-dev] [PATCH v2 2/4] ethdev: prevent changing of
> nb_q_per_pool in rte_eth_dev_check_mq_mode()
> 
> If SRIOV is used and device configuration does not use MQ the
> RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool is set to 1 in
> rte_eth_dev_check_mq_mode().
> This is bad becouse of two reasons:
> 1. Port reconfiguration from non-MQ mode to MQ mode is impossible 2.
> Confguring RX and TX side in different way is impossible.
> 

This case is possible:
rxmode.mq_mode is ETH_MQ_RX_VMDQ_RSS, and txmode.mq_mode is ETH_MQ_TX_NONE.