All of lore.kernel.org
 help / color / mirror / Atom feed
* rte_eth_dev_count() returns 0 in shared library mode.
@ 2018-03-19 15:34 Venkatesh N
  2018-03-20 12:24 ` Ferruh Yigit
  0 siblings, 1 reply; 3+ messages in thread
From: Venkatesh N @ 2018-03-19 15:34 UTC (permalink / raw)
  To: dev

Hi Everyone,

Need urgent help over here.

After cloning the latest git, when i compiled the dpdk
in shared library mode by modifying the common_base config file
and rebuild the examples the api rte_eth_dev_count() returns 0

However in the static library mode, rte_eth_dev_count() returns  2.
Can someone please let me know what iam missing over here.

Here are details

-- Code --

  /* Check that there is an even number of ports to send/receive on. */
        nb_ports = rte_eth_dev_count();
        if (nb_ports < 2 || (nb_ports & 1))
                rte_exit(EXIT_FAILURE, "Error: number of ports must be even\n");


#make config T=x86_64-native-linuxapp-gcc install examples
---------------------------------------
Libraries built by changing the SHARED_LIB.

config/common_base
+++ b/config/common_base
@@ -38,7 +38,7 @@ CONFIG_RTE_ARCH_STRICT_ALIGN=n
 #
 # Compile to share library
 #
-CONFIG_RTE_BUILD_SHARED_LIB=n
+CONFIG_RTE_BUILD_SHARED_LIB=y
----------------------------------------


------------------------------------------------------------------------------------------

[root@localhost dpdk_new]#
./examples/skeleton/x86_64-native-linuxapp-gcc/basicfwd
EAL: Detected 72 lcore(s)
EAL: Multi-process socket /var/run/.rte_unix
EAL: Probing VFIO support...
EAL: Error - exiting with code: 1
  Cause: Error: number of ports must be even
------------------------------------------------------------------------------------------
[root@localhost dpdk_new]# ldd
./examples/skeleton/x86_64-native-linuxapp-gcc/basicfwd
        linux-vdso.so.1 =>  (0x00007fffa858a000)
        librte_flow_classify.so.1.1 =>
/root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_flow_classify.so.1.1
(0x00007f7272f5f000)
        librte_pipeline.so.3.1 =>
/root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_pipeline.so.3.1
(0x00007f7272d58000)
        librte_table.so.3.1 =>
/root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_table.so.3.1
(0x00007f7272b3e000)
        librte_port.so.3.1 =>
/root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_port.so.3.1
(0x00007f727291d000)
        librte_pdump.so.2.1 =>
/root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_pdump.so.2.1
(0x00007f7272513000)
        librte_distributor.so.1.1 =>
/root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_distributor.so.1.1
(0x00007f727230d000)
        librte_ip_frag.so.1.1 =>
/root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_ip_frag.so.1.1
(0x00007f7272103000)
        librte_gro.so.1.1 =>
/root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_gro.so.1.1
(0x00007f7271efc000)
        librte_gso.so.1.1 =>
/root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_gso.so.1.1
(0x00007f7271cf7000)
--snip--

[root@localhost dpdk_new]# ./usertools/dpdk-devbind.py --status

Network devices using DPDK-compatible driver
============================================
0000:04:00.0 'I350 Gigabit Network Connection 1521' drv=igb_uio unused=
0000:04:00.1 'I350 Gigabit Network Connection 1521' drv=igb_uio unused=

------------ Static Library Mode ---------------------

[root@localhost dpdk_new]#
./examples/skeleton/x86_64-native-linuxapp-gcc/basicfwd
EAL: Detected 72 lcore(s)
EAL: Multi-process socket /var/run/.rte_unix
EAL: Probing VFIO support...
EAL: PCI device 0000:04:00.0 on NUMA socket 0
EAL:   probe driver: 8086:1521 net_e1000_igb
EAL: PCI device 0000:04:00.1 on NUMA socket 0
EAL:   probe driver: 8086:1521 net_e1000_igb
EAL: PCI device 0000:04:00.2 on NUMA socket 0
EAL:   probe driver: 8086:1521 net_e1000_igb
EAL: PCI device 0000:04:00.3 on NUMA socket 0
EAL:   probe driver: 8086:1521 net_e1000_igb
EAL: PCI device 0000:05:00.0 on NUMA socket 0
EAL:   probe driver: 8086:1572 net_i40e
EAL: PCI device 0000:05:00.1 on NUMA socket 0
EAL:   probe driver: 8086:1572 net_i40e
Port 0 MAC: 14 02 ec 6b 36 10
Port 1 MAC: 14 02 ec 6b 36 11

-----------------------------------

Git Log
-------
commit 09e1e8d256b0832a64af6d13bf96fcb49e1e7ded
Author: Hemant Agrawal <hemant.agrawal@nxp.com>
Date:   Fri Feb 23 15:28:03 2018 +0530

    mk: fix dependencies of dpaaX drivers

    This  patch fixes the build dependency of various
    dpaaX components, when the dpaa or fslmc bus is disabled,
    or VFIO is disabled.

Regards,
Venky

^ permalink raw reply	[flat|nested] 3+ messages in thread
* Re: rte_eth_dev_count() returns 0 in shared library mode.
  2018-03-19 15:34 rte_eth_dev_count() returns 0 in shared library mode Venkatesh N
@ 2018-03-20 12:24 ` Ferruh Yigit
  2018-03-21 15:08   ` Venkatesh N
  0 siblings, 1 reply; 3+ messages in thread
From: Ferruh Yigit @ 2018-03-20 12:24 UTC (permalink / raw)
  To: Venkatesh N, dev

On 3/19/2018 3:34 PM, Venkatesh N wrote:
> Hi Everyone,
> 
> Need urgent help over here.
> 
> After cloning the latest git, when i compiled the dpdk
> in shared library mode by modifying the common_base config file
> and rebuild the examples the api rte_eth_dev_count() returns 0
> 
> However in the static library mode, rte_eth_dev_count() returns  2.
> Can someone please let me know what iam missing over here.
> 
> Here are details
> 
> -- Code --
> 
>   /* Check that there is an even number of ports to send/receive on. */
>         nb_ports = rte_eth_dev_count();
>         if (nb_ports < 2 || (nb_ports & 1))
>                 rte_exit(EXIT_FAILURE, "Error: number of ports must be even\n");
> 
> 
> #make config T=x86_64-native-linuxapp-gcc install examples
> ---------------------------------------
> Libraries built by changing the SHARED_LIB.
> 
> config/common_base
> +++ b/config/common_base
> @@ -38,7 +38,7 @@ CONFIG_RTE_ARCH_STRICT_ALIGN=n
>  #
>  # Compile to share library
>  #
> -CONFIG_RTE_BUILD_SHARED_LIB=n
> +CONFIG_RTE_BUILD_SHARED_LIB=y
> ----------------------------------------
> 
> 
> ------------------------------------------------------------------------------------------
> 
> [root@localhost dpdk_new]#
> ./examples/skeleton/x86_64-native-linuxapp-gcc/basicfwd
> EAL: Detected 72 lcore(s)
> EAL: Multi-process socket /var/run/.rte_unix
> EAL: Probing VFIO support...
> EAL: Error - exiting with code: 1
>   Cause: Error: number of ports must be even
> ------------------------------------------------------------------------------------------
> [root@localhost dpdk_new]# ldd
> ./examples/skeleton/x86_64-native-linuxapp-gcc/basicfwd
>         linux-vdso.so.1 =>  (0x00007fffa858a000)
>         librte_flow_classify.so.1.1 =>
> /root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_flow_classify.so.1.1
> (0x00007f7272f5f000)
>         librte_pipeline.so.3.1 =>
> /root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_pipeline.so.3.1
> (0x00007f7272d58000)
>         librte_table.so.3.1 =>
> /root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_table.so.3.1
> (0x00007f7272b3e000)
>         librte_port.so.3.1 =>
> /root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_port.so.3.1
> (0x00007f727291d000)
>         librte_pdump.so.2.1 =>
> /root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_pdump.so.2.1
> (0x00007f7272513000)
>         librte_distributor.so.1.1 =>
> /root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_distributor.so.1.1
> (0x00007f727230d000)
>         librte_ip_frag.so.1.1 =>
> /root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_ip_frag.so.1.1
> (0x00007f7272103000)
>         librte_gro.so.1.1 =>
> /root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_gro.so.1.1
> (0x00007f7271efc000)
>         librte_gso.so.1.1 =>
> /root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_gso.so.1.1
> (0x00007f7271cf7000)
> --snip--
> 
> [root@localhost dpdk_new]# ./usertools/dpdk-devbind.py --status
> 
> Network devices using DPDK-compatible driver
> ============================================
> 0000:04:00.0 'I350 Gigabit Network Connection 1521' drv=igb_uio unused=
> 0000:04:00.1 'I350 Gigabit Network Connection 1521' drv=igb_uio unused=
> 
> ------------ Static Library Mode ---------------------
> 
> [root@localhost dpdk_new]#
> ./examples/skeleton/x86_64-native-linuxapp-gcc/basicfwd
> EAL: Detected 72 lcore(s)
> EAL: Multi-process socket /var/run/.rte_unix
> EAL: Probing VFIO support...
> EAL: PCI device 0000:04:00.0 on NUMA socket 0
> EAL:   probe driver: 8086:1521 net_e1000_igb
> EAL: PCI device 0000:04:00.1 on NUMA socket 0
> EAL:   probe driver: 8086:1521 net_e1000_igb
> EAL: PCI device 0000:04:00.2 on NUMA socket 0
> EAL:   probe driver: 8086:1521 net_e1000_igb
> EAL: PCI device 0000:04:00.3 on NUMA socket 0
> EAL:   probe driver: 8086:1521 net_e1000_igb
> EAL: PCI device 0000:05:00.0 on NUMA socket 0
> EAL:   probe driver: 8086:1572 net_i40e
> EAL: PCI device 0000:05:00.1 on NUMA socket 0
> EAL:   probe driver: 8086:1572 net_i40e
> Port 0 MAC: 14 02 ec 6b 36 10
> Port 1 MAC: 14 02 ec 6b 36 11
> 
> -----------------------------------
> 
> Git Log
> -------
> commit 09e1e8d256b0832a64af6d13bf96fcb49e1e7ded
> Author: Hemant Agrawal <hemant.agrawal@nxp.com>
> Date:   Fri Feb 23 15:28:03 2018 +0530
> 
>     mk: fix dependencies of dpaaX drivers
> 
>     This  patch fixes the build dependency of various
>     dpaaX components, when the dpaa or fslmc bus is disabled,
>     or VFIO is disabled.
> 
> Regards,
> Venky
>

Need to provide "-d" parameter for shared build [1], something like:
"./examples/skeleton/x86_64-native-linuxapp-gcc/basicfwd -d
./x86_64-native-linuxapp-gcc/lib"


[1]
https://dpdk.org/doc/guides/linux_gsg/build_sample_apps.html#running-a-sample-application

^ permalink raw reply	[flat|nested] 3+ messages in thread
* Re: rte_eth_dev_count() returns 0 in shared library mode.
  2018-03-20 12:24 ` Ferruh Yigit
@ 2018-03-21 15:08   ` Venkatesh N
  0 siblings, 0 replies; 3+ messages in thread
From: Venkatesh N @ 2018-03-21 15:08 UTC (permalink / raw)
  To: Ferruh Yigit; +Cc: dev

Thank Yigit.

It worked for me. I think if the same information is provided in the
doc folder then it can avoid confusion. Many blogs said
to build it as static library.

Regards,
Venky

On Tue, Mar 20, 2018 at 5:54 PM, Ferruh Yigit <ferruh.yigit@intel.com> wrote:
> On 3/19/2018 3:34 PM, Venkatesh N wrote:
>> Hi Everyone,
>>
>> Need urgent help over here.
>>
>> After cloning the latest git, when i compiled the dpdk
>> in shared library mode by modifying the common_base config file
>> and rebuild the examples the api rte_eth_dev_count() returns 0
>>
>> However in the static library mode, rte_eth_dev_count() returns  2.
>> Can someone please let me know what iam missing over here.
>>
>> Here are details
>>
>> -- Code --
>>
>>   /* Check that there is an even number of ports to send/receive on. */
>>         nb_ports = rte_eth_dev_count();
>>         if (nb_ports < 2 || (nb_ports & 1))
>>                 rte_exit(EXIT_FAILURE, "Error: number of ports must be even\n");
>>
>>
>> #make config T=x86_64-native-linuxapp-gcc install examples
>> ---------------------------------------
>> Libraries built by changing the SHARED_LIB.
>>
>> config/common_base
>> +++ b/config/common_base
>> @@ -38,7 +38,7 @@ CONFIG_RTE_ARCH_STRICT_ALIGN=n
>>  #
>>  # Compile to share library
>>  #
>> -CONFIG_RTE_BUILD_SHARED_LIB=n
>> +CONFIG_RTE_BUILD_SHARED_LIB=y
>> ----------------------------------------
>>
>>
>> ------------------------------------------------------------------------------------------
>>
>> [root@localhost dpdk_new]#
>> ./examples/skeleton/x86_64-native-linuxapp-gcc/basicfwd
>> EAL: Detected 72 lcore(s)
>> EAL: Multi-process socket /var/run/.rte_unix
>> EAL: Probing VFIO support...
>> EAL: Error - exiting with code: 1
>>   Cause: Error: number of ports must be even
>> ------------------------------------------------------------------------------------------
>> [root@localhost dpdk_new]# ldd
>> ./examples/skeleton/x86_64-native-linuxapp-gcc/basicfwd
>>         linux-vdso.so.1 =>  (0x00007fffa858a000)
>>         librte_flow_classify.so.1.1 =>
>> /root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_flow_classify.so.1.1
>> (0x00007f7272f5f000)
>>         librte_pipeline.so.3.1 =>
>> /root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_pipeline.so.3.1
>> (0x00007f7272d58000)
>>         librte_table.so.3.1 =>
>> /root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_table.so.3.1
>> (0x00007f7272b3e000)
>>         librte_port.so.3.1 =>
>> /root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_port.so.3.1
>> (0x00007f727291d000)
>>         librte_pdump.so.2.1 =>
>> /root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_pdump.so.2.1
>> (0x00007f7272513000)
>>         librte_distributor.so.1.1 =>
>> /root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_distributor.so.1.1
>> (0x00007f727230d000)
>>         librte_ip_frag.so.1.1 =>
>> /root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_ip_frag.so.1.1
>> (0x00007f7272103000)
>>         librte_gro.so.1.1 =>
>> /root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_gro.so.1.1
>> (0x00007f7271efc000)
>>         librte_gso.so.1.1 =>
>> /root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_gso.so.1.1
>> (0x00007f7271cf7000)
>> --snip--
>>
>> [root@localhost dpdk_new]# ./usertools/dpdk-devbind.py --status
>>
>> Network devices using DPDK-compatible driver
>> ============================================
>> 0000:04:00.0 'I350 Gigabit Network Connection 1521' drv=igb_uio unused=
>> 0000:04:00.1 'I350 Gigabit Network Connection 1521' drv=igb_uio unused=
>>
>> ------------ Static Library Mode ---------------------
>>
>> [root@localhost dpdk_new]#
>> ./examples/skeleton/x86_64-native-linuxapp-gcc/basicfwd
>> EAL: Detected 72 lcore(s)
>> EAL: Multi-process socket /var/run/.rte_unix
>> EAL: Probing VFIO support...
>> EAL: PCI device 0000:04:00.0 on NUMA socket 0
>> EAL:   probe driver: 8086:1521 net_e1000_igb
>> EAL: PCI device 0000:04:00.1 on NUMA socket 0
>> EAL:   probe driver: 8086:1521 net_e1000_igb
>> EAL: PCI device 0000:04:00.2 on NUMA socket 0
>> EAL:   probe driver: 8086:1521 net_e1000_igb
>> EAL: PCI device 0000:04:00.3 on NUMA socket 0
>> EAL:   probe driver: 8086:1521 net_e1000_igb
>> EAL: PCI device 0000:05:00.0 on NUMA socket 0
>> EAL:   probe driver: 8086:1572 net_i40e
>> EAL: PCI device 0000:05:00.1 on NUMA socket 0
>> EAL:   probe driver: 8086:1572 net_i40e
>> Port 0 MAC: 14 02 ec 6b 36 10
>> Port 1 MAC: 14 02 ec 6b 36 11
>>
>> -----------------------------------
>>
>> Git Log
>> -------
>> commit 09e1e8d256b0832a64af6d13bf96fcb49e1e7ded
>> Author: Hemant Agrawal <hemant.agrawal@nxp.com>
>> Date:   Fri Feb 23 15:28:03 2018 +0530
>>
>>     mk: fix dependencies of dpaaX drivers
>>
>>     This  patch fixes the build dependency of various
>>     dpaaX components, when the dpaa or fslmc bus is disabled,
>>     or VFIO is disabled.
>>
>> Regards,
>> Venky
>>
>
> Need to provide "-d" parameter for shared build [1], something like:
> "./examples/skeleton/x86_64-native-linuxapp-gcc/basicfwd -d
> ./x86_64-native-linuxapp-gcc/lib"
>
>
> [1]
> https://dpdk.org/doc/guides/linux_gsg/build_sample_apps.html#running-a-sample-application

^ permalink raw reply	[flat|nested] 3+ messages in thread
end of thread, other threads:[~2018-03-21 15:08 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-03-19 15:34 rte_eth_dev_count() returns 0 in shared library mode Venkatesh N
2018-03-20 12:24 ` Ferruh Yigit
2018-03-21 15:08   ` Venkatesh N

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.