[dpdk-dev] how to get driver name for a given port ID
Montorsi, Francesco
fmontorsi at empirix.com
Mon Oct 26 15:17:36 CET 2015
Hi all,
Is there an API to retrieve the driver name for a certain port ID before calling rte_eth_dev_configure()?
My use case is: I'm trying to call rte_eth_dev_configure() with nb_rx_q=4 and found that this works for ixgbe driver but it doesn't for "rte_em_pmd" (1Gbps device):
ERROR HwEmulDPDKPort::init() rte_eth_dev_configure: err=-22, port=0: Unknown error -22
EAL: PCI device 0000:03:00.0 on NUMA socket 0
EAL: remove driver: 8086:105e rte_em_pmd
EAL: PCI memory unmapped at 0x7feb40000000
EAL: PCI memory unmapped at 0x7feb40020000
So, for those devices I want to use nb_rx_q=1...
Thanks,
Francesco Montorsi
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