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From: David Aldrich <david.aldrich.ntml@gmail.com>
To: users <users@dpdk.org>
Subject: Failing to parse pci device
Date: Tue, 8 Apr 2025 17:34:07 +0100	[thread overview]
Message-ID: <CAJK_iehWrB_Z_-NL5h3OTXF5MSx5P0+um29MjiE8w+MNBNtScw@mail.gmail.com> (raw)

Hi
I am trying to build a legacy application with DPDK 19.11.14. It links
successfully but fails to parse the whitelisted pci device at runtime:

EAL parameters: phy_app --proc-type=primary --file-prefix wls -w 0000:43:00.1
EAL: Detected 64 lcore(s)
EAL: Detected 1 NUMA nodes
EAL: failed to parse device "0000:43:00.1"
EAL: Unable to parse device '0000:43:00.1'

I think this suggests that the rte_bus_pci library is not loaded?

I suspect my linker command is incorrect. I am using CMake and I
detect the dpdk install using pkg-config. My linker directive is:

target_link_libraries(testApp PRIVATE
    -Wl,--start-group
    -lpthread
    -lrt
    -lhugetlbfs
    -Wl,-lm
    -Wl,-lnuma
    -L${WLS_LIB_PATH}
    -lwls
    -L${_dpdk_lib_path}
    -Wl,--whole-archive
    ${DPDK_STATIC_LDFLAGS}   # DPDK libraries - static linking
    -Wl,--no-whole-archive
    -Wl,--end-group
)

I don't understand well the linker directives such as 'start-group'
and 'whole-archive'.  Please could someone review the
target_link_libraries directive above and suggest what may be wrong?

I should mention that the DPDK 23.11 driver is running on the target
server, but I get a similar parse error if I build with DPDK 23.11.

             reply	other threads:[~2025-04-08 16:34 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-08 16:34 David Aldrich [this message]
2025-04-08 16:51 ` David Aldrich
2025-04-09 17:24   ` David Aldrich

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