2024-11-20T08:39:01.929Z

<liang> Hello, I am getting issue below when I run "./do_cmake.sh -DWITH_TESTS=OFF -DWITH_DPDK=ON". My dpdk directory is ceph/src/dpdk. Could anyone know how to resolve this issue? many thanks in advance.

ExternalProject target 'dpdk-ext' would depend on the targets for step(s) 'configure;patch-config;build' under policy CMP0114, but this is being left out for compatibility since the policy is not set. Call Stack (most recent call first): cmake/modules/BuildDPDK.cmake:114 (ExternalProject_Add_StepTargets) cmake/modules/BuildDPDK.cmake:194 (do_build_dpdk) CMakeLists.txt:404 (build_dpdk)

2024-11-20T14:58:01.433Z

<Casey Bodley> you could try enabling that CMP0114 policy at the top of CMakeLists.txt:
```-foreach(policy CMP0127 CMP0135)
+foreach(policy CMP0127 CMP0135 CMP0114)```

2024-11-20T15:00:42.341Z

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2024-11-20T15:03:15.899Z

<liang> I have installed dpdk-dev. Then this issue is resolved. But dpdk is not been enabled in async message. Do you how to compile ceph that use dpdk async message？Thank you.

2024-11-20T15:04:51.508Z

<Casey Bodley> `-DWITH_DPDK=ON` should cause the messenger stuff to build

2024-11-20T15:06:44.717Z

<liang> Hi all. I try to compile ceph with -DWITH_DPDK=ON. But dpdk is not enabled. Do anyone know how to use DPDKStack on async message？

2024-11-20T15:07:37.151Z

<Casey Bodley> i would expect that to build the dpdk backend. then you would have to configure `ms_type=async+dpdk` to use it at runtime

2024-11-20T15:08:12.030Z

<liang> I have installed dpdk-dev. Cmake also find dpdk successfully.

2024-11-20T15:11:09.916Z

<Joseph Mundackal> <https://github.com/ceph/ceph/blob/main/CMakeLists.txt#L501>

2024-11-20T15:11:24.545Z

<Joseph Mundackal> you might have to uniunstall system dpdk... to make ceph build it?

2024-11-20T15:12:31.295Z

<liang> yep，I have configure ms_type=async+dpdk，but failed，do not support dpdk is printed. find dpdkstack function with nm command. It seems that dpdkstack for async message code is not compile in ceph-osd binary.

2024-11-20T15:13:44.568Z

<liang> thank you. I will try as you said

2024-11-20T16:24:34.147Z

<Casey Bodley> weekly rgw meeting starting in ~5m at [ <https://pad.ceph.com/p/rgw-weekly](https://meet.google.com/mmj-uzzv-qce> )