Re: l3fwd error, port 0 is not present on the board

[Neil Horman <nhorman-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>]

On Wed, Dec 31, 2014 at 08:18:34AM -0600, Lyn M wrote:
> Neil, to build DPDK, I am doing the following steps:
> 1) download DPDK tarball (1.7.1 or 1.8.0) from
> http://dpdk.org/browse/dpdk/refs/
> 2) untar
> 3) edit config/common_linuxapp and change CONFIG_RTE_BUILD_COMBINE_LIBS
> from "n" to "y"
> 4) follow all of the steps in http://dpdk.org/doc/quick-start
> 
Hmm, I wonder if you're seeing a problem in which the constructors don't get
linked in properly.  Does it work if you don't specify
CONFIG_RTE_BUILD_COMBINE_LIBS?  I.e. if you build several .a files?

Can you objdump -t the resultant binary with and without COMBINE_LIBS and post
it?

Neil

> When I do those steps for DPDK 1.7.1, the output of testpmd is OK, and I
> see both of my NICs that are bound to igb_uio.
> When I do those steps for DPDK 1.8.0, the output of testpmd is:
> EAL: Error - exiting with code: 1
>   Cause: No probed ethernet device
> 
> I see the same result when I use the setup.sh script instead of manually
> doing the steps in http://dpdk.org/doc/quick-start
> 
> Can you please show me an example of enabling the pmd init debug macros?
> 
> Lyn
> 
> On Tue, Dec 30, 2014 at 3:24 PM, Neil Horman <nhorman-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org> wrote:
> 
> > On Tue, Dec 30, 2014 at 12:54:17PM -0600, Lyn M wrote:
> > > Neil, thank you for your reply.
> > >
> > > I used the DPDK 8.1.0 setup.sh script to clean the system (unbind NICs,
> > > rmmod igb_uio and uio, remove hugepage mappings), and then re-built for
> > > x86_64-native-linuxapp-gcc, setup hugepages, insmod the modules, bound
> > the
> > > NICs, but have the same result when trying to run testpmd:
> > > EAL: Error - exiting with code: 1
> > >   Cause: No probed ethernet device
> > >
> > >
> > > I then cleaned up again, downloaded DPDK 1.7.1 and ran the setup.sh
> > script
> > > to build for x86_64-native-linuxapp-gcc.  With 1.7.1, testpmd runs
> > > successfully, and I am able to run my l3fwd command as well. I also built
> > > for x86_64-ivshmem-linuxapp-gcc, and testpmd ran successfully (other than
> > > the warning about no IVSHMEM configuration).
> > >
> > > Thoughts?
> > >
> > Well, the root cause is still the same, DPDK isn't detecting any devices
> > over
> > which to forward traffic, which means the nb_port count is zero.  That
> > would
> > suggest that you didn't find any devices during rte_eal_init.  The
> > question is
> > why. I'd turn on all the pmd init debug macros to see if all the init
> > routines
> > are getting called.
> >
> > Two questions: (1) are you doing a static or DSO build, and (2) did you
> > make any
> > changes to the make flags?
> >
> > Neil
> >
> > > On Mon, Dec 29, 2014 at 3:02 PM, Neil Horman <nhorman-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>
> > wrote:
> > >
> > > > On Mon, Dec 29, 2014 at 02:18:09PM -0600, Lyn M wrote:
> > > > > Hello all,
> > > > >
> > > > > Rangeley platform (1 CPU with 8 cores, 4x1 GbE, 2x10 GbE, Intel PCIe
> > card
> > > > > with 2x10 GbE fiber)
> > > > > FC20 with hugepages enabled
> > > > > DPDK 1.8.0 built with T=x86_64-ivshmem-linuxapp-gcc
> > > > >
> > > > >  */usr/src/dpdk/tools/dpdk_nic_bind.py --status*
> > > > >
> > > > >
> > > > >
> > > > > Network devices using DPDK-compatible driver
> > > > >
> > > > > ============================================
> > > > >
> > > > > 0000:09:00.0 '82599ES 10-Gigabit SFI/SFP+ Network Connection'
> > drv=igb_uio
> > > > > unused=ixgbe
> > > > >
> > > > > 0000:09:00.1 '82599ES 10-Gigabit SFI/SFP+ Network Connection'
> > drv=igb_uio
> > > > > unused=ixgbe
> > > > >
> > > > >
> > > > >
> > > > > Network devices using kernel driver
> > > > >
> > > > > ===================================
> > > > >
> > > > > 0000:00:14.0 'Ethernet Connection I354' if=enp0s20f0 drv=igb
> > > > unused=igb_uio
> > > > >
> > > > > 0000:00:14.1 'Ethernet Connection I354' if=enp0s20f1 drv=igb
> > > > unused=igb_uio
> > > > >
> > > > > 0000:00:14.2 'Ethernet Connection I354' if=enp0s20f2 drv=igb
> > > > unused=igb_uio
> > > > >
> > > > > 0000:00:14.3 'Ethernet Connection I354' if=enp0s20f3 drv=igb
> > > > unused=igb_uio
> > > > >
> > > > > 0000:07:00.0 'Ethernet Controller 10-Gigabit X540-AT2' if=p5p1
> > drv=ixgbe
> > > > > unused=igb_uio *Active*
> > > > >
> > > > > 0000:07:00.1 'Ethernet Controller 10-Gigabit X540-AT2' if=p5p2
> > drv=ixgbe
> > > > > unused=igb_uio
> > > > >
> > > > >
> > > > >
> > > > > Other network devices
> > > > >
> > > > > =====================
> > > > >
> > > > > <none>
> > > > >
> > > > > The DPDK helloworld example seems to run OK, other than the warning
> > about
> > > > > IVSHMEM configuration not found:
> > > > > *./helloworld -c 0x3 -n 4*
> > > > > EAL: Detected lcore 0 as core 0 on socket 0
> > > > > EAL: Detected lcore 1 as core 1 on socket 0
> > > > > EAL: Detected lcore 2 as core 2 on socket 0
> > > > > EAL: Detected lcore 3 as core 3 on socket 0
> > > > > EAL: Detected lcore 4 as core 4 on socket 0
> > > > > EAL: Detected lcore 5 as core 5 on socket 0
> > > > > EAL: Detected lcore 6 as core 6 on socket 0
> > > > > EAL: Detected lcore 7 as core 7 on socket 0
> > > > > EAL: Support maximum 128 logical core(s) by configuration.
> > > > > EAL: Detected 8 lcore(s)
> > > > > EAL: Searching for IVSHMEM devices...
> > > > > EAL: No IVSHMEM configuration found!
> > > > > EAL: Setting up memory...
> > > > > EAL: Ask a virtual area of 0x200000 bytes
> > > > > EAL: Virtual area found at 0x7fcca2c00000 (size = 0x200000)
> > > > > EAL: Ask a virtual area of 0x29400000 bytes
> > > > > EAL: Virtual area found at 0x7fcc79600000 (size = 0x29400000)
> > > > > EAL: Ask a virtual area of 0x400000 bytes
> > > > > EAL: Virtual area found at 0x7fcca3400000 (size = 0x400000)
> > > > > EAL: Ask a virtual area of 0x200000 bytes
> > > > > EAL: Virtual area found at 0x7fcca3000000 (size = 0x200000)
> > > > > EAL: Ask a virtual area of 0x200000 bytes
> > > > > EAL: Virtual area found at 0x7fcc79200000 (size = 0x200000)
> > > > > EAL: Ask a virtual area of 0x14d000000 bytes
> > > > > EAL: Virtual area found at 0x7fcb2c000000 (size = 0x14d000000)
> > > > > EAL: Ask a virtual area of 0x200000 bytes
> > > > > EAL: Virtual area found at 0x7fcb2bc00000 (size = 0x200000)
> > > > > EAL: Requesting 3000 pages of size 2MB from socket 0
> > > > > EAL: TSC frequency is ~2393997 KHz
> > > > > EAL: Master core 0 is ready (tid=a4ca2840)
> > > > > EAL: Core 1 is ready (tid=2bbff700)
> > > > > hello from core 1
> > > > > hello from core 0
> > > > >
> > > > >
> > > > > I want to run the l3fwd example app, per Appendix A.2 (pg 35-36) in
> > the
> > > > > DPDK 1.2 Release Benchmark Test Report .pdf:
> > > > > *./build/l3fwd -c 0x6 -n 4 --socket-mem 1024,0 -- -p 0x3
> > > > > -config="(0,0,1),(1,0,2)"*
> > > > > where the "-p option is the hexadecimal bit mask of the ports to
> > > > configure"
> > > > >
> > > > > I am running this command:
> > > > >
> > > > > *./build/l3fwd -c 0x3 -n 4 --socket-mem 1024,0 -- -p 0x3
> > > > > --config="(0,0,0),(1,0,1)" --no-numa*
> > > > >
> > > > > EAL: Detected lcore 0 as core 0 on socket 0
> > > > >
> > > > > EAL: Detected lcore 1 as core 1 on socket 0
> > > > >
> > > > > EAL: Detected lcore 2 as core 2 on socket 0
> > > > >
> > > > > EAL: Detected lcore 3 as core 3 on socket 0
> > > > >
> > > > > EAL: Detected lcore 4 as core 4 on socket 0
> > > > >
> > > > > EAL: Detected lcore 5 as core 5 on socket 0
> > > > >
> > > > > EAL: Detected lcore 6 as core 6 on socket 0
> > > > >
> > > > > EAL: Detected lcore 7 as core 7 on socket 0
> > > > >
> > > > > EAL: Support maximum 128 logical core(s) by configuration.
> > > > >
> > > > > EAL: Detected 8 lcore(s)
> > > > >
> > > > > EAL: Searching for IVSHMEM devices...
> > > > >
> > > > > EAL: No IVSHMEM configuration found!
> > > > >
> > > > > EAL: Setting up memory...
> > > > >
> > > > > EAL: Ask a virtual area of 0x200000 bytes
> > > > >
> > > > > EAL: Virtual area found at 0x7f3212600000 (size = 0x200000)
> > > > >
> > > > > EAL: Ask a virtual area of 0x29400000 bytes
> > > > >
> > > > > EAL: Virtual area found at 0x7f31e9000000 (size = 0x29400000)
> > > > >
> > > > > EAL: Ask a virtual area of 0x400000 bytes
> > > > >
> > > > > EAL: Virtual area found at 0x7f3212e00000 (size = 0x400000)
> > > > >
> > > > > EAL: Ask a virtual area of 0x200000 bytes
> > > > >
> > > > > EAL: Virtual area found at 0x7f3212a00000 (size = 0x200000)
> > > > >
> > > > > EAL: Ask a virtual area of 0x200000 bytes
> > > > >
> > > > > EAL: Virtual area found at 0x7f31e8c00000 (size = 0x200000)
> > > > >
> > > > > EAL: Ask a virtual area of 0x14d000000 bytes
> > > > >
> > > > > EAL: Virtual area found at 0x7f309ba00000 (size = 0x14d000000)
> > > > >
> > > > > EAL: Ask a virtual area of 0x200000 bytes
> > > > >
> > > > > EAL: Virtual area found at 0x7f309b600000 (size = 0x200000)
> > > > >
> > > > > EAL: Requesting 512 pages of size 2MB from socket 0
> > > > >
> > > > > EAL: TSC frequency is ~2393998 KHz
> > > > >
> > > > > EAL: Master core 0 is ready (tid=14734840)
> > > > >
> > > > > EAL: Core 1 is ready (tid=e8bff700)
> > > > >
> > > > > numa is disabled
> > > > >
> > > > > port 0 is not present on the board
> > > > >
> > > > > EAL: Error - exiting with code: 1
> > > > >
> > > > >   Cause: check_port_config failed
> > > > >
> > > > > Perhaps the 0x3 (0011) hex portmask is incorrect?  What Linux
> > command, or
> > > > > combination of commands, would help show the appropriate hex
> > portmask to
> > > > > use in my case?
> > > > >
> > > > > Thanks for your time,
> > > > > Lyn
> > > > >
> > > > I don't see the detection of any of your physical devices here.  I'm
> > > > guessing
> > > > your setup is just looking for ivshmem devices, which you won't have
> > any
> > > > of in
> > > > FC20 unless you rebuild qemu.  As such, dpdk doesn't see any ports,
> > which
> > > > is why
> > > > you're getting the error the results from portid 0 being greater than
> > the
> > > > number
> > > > of detected ports on the system
> > > >
> > > > neil
> > > >
> > > >
> >