[PATCH v2] config/x86: config support for AMD EPYC processors

[Sivaprasad Tummala]

On x86 platforms, max lcores are limited to 128 by default.

On AMD EPYC processors, this limit was adjusted for native
builds in the previous patch.
https://patches.dpdk.org/project/dpdk/patch/
20230925151027.558546-1-sivaprasad.tummala at amd.com/

As agreed earlier in mailing list, this patch adjusts the limit
for specific AMD EPYC target/cross builds.

Signed-off-by: Sivaprasad Tummala <sivaprasad.tummala at amd.com>
Acked-by: Morten Brørup <mb at smartsharesystems.com>
---
 config/x86/meson.build | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/config/x86/meson.build b/config/x86/meson.build
index 5355731cef..8087b9ae91 100644
--- a/config/x86/meson.build
+++ b/config/x86/meson.build
@@ -91,13 +91,21 @@ epyc_zen_cores = {
     '__znver1__':128
     }
 
-if get_option('platform') == 'native'
+cpu_instruction_set = get_option('cpu_instruction_set')
+if cpu_instruction_set == 'native'
     foreach m:epyc_zen_cores.keys()
         if cc.get_define(m, args: machine_args) != ''
             dpdk_conf.set('RTE_MAX_LCORE', epyc_zen_cores[m])
             break
         endif
     endforeach
+else
+    foreach m:epyc_zen_cores.keys()
+        if m.contains(cpu_instruction_set)
+            dpdk_conf.set('RTE_MAX_LCORE', epyc_zen_cores[m])
+            break
+        endif
+    endforeach
 endif
 
 dpdk_conf.set('RTE_MAX_NUMA_NODES', 32)
-- 
2.25.1