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From: Sivaprasad Tummala <sivaprasad.tummala@amd.com>
To: <mb@smartsharesystems.com>, <david.marchand@redhat.com>,
<ktraynor@redhat.com>, <thomas@monjalon.net>,
<konstantin.ananyev@huawei.com>, <konstantin.v.ananyev@yandex.ru>,
<bruce.richardson@intel.com>, <maxime.coquelin@redhat.com>,
<aconole@redhat.com>, <ferruh.yigit@amd.com>
CC: <dev@dpdk.org>
Subject: [PATCH v2] config/x86: config support for AMD EPYC processors
Date: Thu, 21 Dec 2023 06:11:52 +0100
Message-ID: <20231221051152.2450-1-sivaprasad.tummala@amd.com>
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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>
Acked-by: Morten Brørup <mb@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