[dpdk-dev] [Linuxarm] Re: [PATCH V2] app/testpmd: support Tx mbuf free on demand cmd

[Thomas Monjalon]

12/03/2021 11:29, oulijun:
> 2021/3/10 15:59, Thomas Monjalon:
> > 10/03/2021 02:48, oulijun:
> >> Can we add an API such as rte_eth_get_device(pord_id)
> >>
> >> for example:
> >> struct rte_eth_dev *
> >> rte_eth_get_device(uint16_t port_id)
> >> {
> >>          return &rte_eth_devices[port_id];
> >> }
> > An application is not supposed to access the struct rte_eth_dev.
> > Which info do you need from this struct?
> 
> Applications cannot directly access the global variable 
> rte_eth_devices[]. To obtain information about rte_eth_dev, they need to 
> access the global variable through APIs instead of directly.

That's not the question.
Which device info do you need, which is not already provided by
one of the function rte_eth_*info* ?
	rte_eth_dev_get_dcb_info
	rte_eth_dev_get_reg_info
	rte_eth_dev_info_get
	rte_eth_rx_queue_info_get
	rte_eth_tx_queue_info_get
	rte_eth_dev_get_module_info