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From: Mike Shang <mshang5@gmail.com>
Date: Thu, 23 Mar 2017 15:47:18 +0800
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Subject: [dpdk-users] Getting pci id using port id with latest DPDK
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Hi,
I have legacy code that needs to get pci id using port id in order to make
different config for different pci device. In the past, we can do that with
a simple call to rte_eth_dev_info_get() and look into the pci_dev file in
rte_eth_dev_info structure. But with latest DPDK, rte_eth_dev_info_get() no
longer fills pci_dev after this commit (
http://dpdk.org/browse/dpdk/commit/lib/librte_ether/rte_ethdev.c?id=ae34410a8a8aff1b8382e16fcc89353648355be0
) Looks like the developers wanted to decouple pci device from a general
device.
Under such condition, how can I get the needed pci id from port id ? I scan
all function listed in rte_ethdev.h but didn't find such function. Maybe
there an indirect to do that? as a last resort, I can patch the dpdk source
code to make rte_eth_dev_info_get() fill pci_dev again but that may be the
last thing I would consider.....