20. Ability to use external memory test plan

20.1. Description:

Provide an abstraction for DPDK hugepage allocation, to have a “default” memory allocator that will allocate hugepages, but also have custom allocator support for external memory.

20.2. Test case 1: IGB_UIO and anonymous memory allocation

Bind the ports to IGB_UIO driver

Start testpmd with –mp-alloc=xmem flag:

./x86_64-native-linuxapp-gcc/app/testpmd -c 0xf -n 4 -- --mp-alloc=xmem -i

Start forward in testpmd

Start send traffic from outside to test the forward function

20.3. Test case 2: IGB_UIO and anonymous hugepage memory allocation

Bind the ports to IGB_UIO driver

Start testpmd with –mp-alloc=xmemhuge flag:

./x86_64-native-linuxapp-gcc/app/testpmd -c 0xf -n 4 -- --mp-alloc=xmemhuge -i

Start forward in testpmd

Start send traffic from outside to test the forward function

20.4. Test case 3: VFIO and anonymous memory allocation

Bind the ports to vfio-pci driver

Start testpmd with –mp-alloc=xmem flag:

./x86_64-native-linuxapp-gcc/app/testpmd -c 0xf -n 4 -- --mp-alloc=xmem -i

Start forward in testpmd

Start send traffic from outside to test the forward function

20.5. Test case 4: VFIO and anonymous hugepage memory allocation

Bind the ports to vfio-pci driver

Start testpmd with –mp-alloc=xmemhuge flag:

./x86_64-native-linuxapp-gcc/app/testpmd -c 0xf -n 4 -- --mp-alloc=xmemhuge -i

Start forward in testpmd

Start send traffic from outside to test the forward function