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* [PATCH] config/x86: config support for AMD EPYC processors
@ 2023-12-20  7:10 Sivaprasad Tummala
  2023-12-20  7:27 ` Morten Brørup
  2023-12-21  5:11 ` [PATCH v2] " Sivaprasad Tummala
  0 siblings, 2 replies; 6+ messages in thread
From: Sivaprasad Tummala @ 2023-12-20  7:10 UTC (permalink / raw)
  To: mb, david.marchand, ktraynor, thomas, konstantin.ananyev,
	konstantin.v.ananyev, bruce.richardson, maxime.coquelin, aconole,
	ferruh.yigit
  Cc: dev

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@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@amd.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..f2df4c2003 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


^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2024-02-13 14:28 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-12-20  7:10 [PATCH] config/x86: config support for AMD EPYC processors Sivaprasad Tummala
2023-12-20  7:27 ` Morten Brørup
2023-12-20  9:22   ` Tummala, Sivaprasad
2023-12-21  5:11 ` [PATCH v2] " Sivaprasad Tummala
2024-01-02 18:18   ` Konstantin Ananyev
2024-02-13 14:28     ` Thomas Monjalon

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