From: Sivaprasad Tummala <sivaprasad.tummala@amd.com>
To: <bruce.richardson@intel.com>, <konstantin.v.ananyev@yandex.ru>
Cc: <dev@dpdk.org>, Sivaprasad Tummala <Sivaprasad.Tummala@amd.com>
Subject: [PATCH] config/x86: config support for AMD EPYC processors
Date: Mon, 25 Sep 2023 08:10:27 -0700 [thread overview]
Message-ID: <20230925151027.558546-1-sivaprasad.tummala@amd.com> (raw)
From: Sivaprasad Tummala <Sivaprasad.Tummala@amd.com>
By default, max lcores are limited to 128 for x86 platforms.
On AMD EPYC processors, this limit needs to be increased to
leverage all the cores.
The patch adjusts the limit specifically for native compilation
on AMD EPYC CPUs.
Signed-off-by: Sivaprasad Tummala <Sivaprasad.Tummala@amd.com>
---
config/x86/meson.build | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/config/x86/meson.build b/config/x86/meson.build
index d8ef50fb40..5355731cef 100644
--- a/config/x86/meson.build
+++ b/config/x86/meson.build
@@ -83,4 +83,21 @@ endif
dpdk_conf.set('RTE_CACHE_LINE_SIZE', 64)
dpdk_conf.set('RTE_MAX_LCORE', 128)
+
+epyc_zen_cores = {
+ '__znver4__':512,
+ '__znver3__':256,
+ '__znver2__':256,
+ '__znver1__':128
+ }
+
+if get_option('platform') == '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
+endif
+
dpdk_conf.set('RTE_MAX_NUMA_NODES', 32)
--
2.34.1
next reply other threads:[~2023-09-25 15:11 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-25 15:10 Sivaprasad Tummala [this message]
2023-10-06 7:50 ` David Marchand
2023-10-16 5:14 ` Tummala, Sivaprasad
2023-10-16 5:20 ` Tummala, Sivaprasad
2023-10-17 9:45 ` Kevin Traynor
2023-10-17 10:27 ` Morten Brørup
2023-11-06 21:05 ` Thomas Monjalon
2023-11-06 22:17 ` Morten Brørup
2023-11-07 13:13 ` Konstantin Ananyev
2023-11-07 13:30 ` Morten Brørup
2023-11-07 14:32 ` Konstantin Ananyev
2023-11-08 12:24 ` Tummala, Sivaprasad
2023-11-08 13:06 ` Morten Brørup
2023-11-09 16:43 ` Konstantin Ananyev
2023-10-17 10:58 ` Ferruh Yigit
2023-11-07 12:59 ` Konstantin Ananyev
2023-11-12 13:48 ` Thomas Monjalon
2023-12-20 7:10 Sivaprasad Tummala
2023-12-20 7:27 ` Morten Brørup
2023-12-20 9:22 ` Tummala, Sivaprasad
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230925151027.558546-1-sivaprasad.tummala@amd.com \
--to=sivaprasad.tummala@amd.com \
--cc=bruce.richardson@intel.com \
--cc=dev@dpdk.org \
--cc=konstantin.v.ananyev@yandex.ru \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).