DPDK patches and discussions
 help / color / mirror / Atom feed
* [PATCH v1] config/x86: add lcore support for AMD EPYC Zen5 platforms
@ 2024-10-21 10:21 Sivaprasad Tummala
  2024-10-21 15:07 ` Morten Brørup
  2024-10-30  8:24 ` David Marchand
  0 siblings, 2 replies; 3+ messages in thread
From: Sivaprasad Tummala @ 2024-10-21 10:21 UTC (permalink / raw)
  To: bruce.richardson, maxime.coquelin, mb, ferruh.yigit,
	konstantin.ananyev, thomas, david.marchand, aconole
  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 commit acb34af951cf ("config/x86: increase lcores number for native
AMD EPYC")

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 | 1 +
 1 file changed, 1 insertion(+)

diff --git a/config/x86/meson.build b/config/x86/meson.build
index 265580a555..5455bb0210 100644
--- a/config/x86/meson.build
+++ b/config/x86/meson.build
@@ -96,6 +96,7 @@ dpdk_conf.set('RTE_CACHE_LINE_SIZE', 64)
 dpdk_conf.set('RTE_MAX_LCORE', 128)
 
 epyc_zen_cores = {
+    '__znver5__':768,
     '__znver4__':512,
     '__znver3__':256,
     '__znver2__':256,
-- 
2.34.1


^ permalink raw reply	[flat|nested] 3+ messages in thread

* RE: [PATCH v1] config/x86: add lcore support for AMD EPYC Zen5 platforms
  2024-10-21 10:21 [PATCH v1] config/x86: add lcore support for AMD EPYC Zen5 platforms Sivaprasad Tummala
@ 2024-10-21 15:07 ` Morten Brørup
  2024-10-30  8:24 ` David Marchand
  1 sibling, 0 replies; 3+ messages in thread
From: Morten Brørup @ 2024-10-21 15:07 UTC (permalink / raw)
  To: Sivaprasad Tummala, bruce.richardson, maxime.coquelin,
	ferruh.yigit, konstantin.ananyev, thomas, david.marchand,
	aconole
  Cc: dev

Acked-by: Morten Brørup <mb@smartsharesystems.com>



^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [PATCH v1] config/x86: add lcore support for AMD EPYC Zen5 platforms
  2024-10-21 10:21 [PATCH v1] config/x86: add lcore support for AMD EPYC Zen5 platforms Sivaprasad Tummala
  2024-10-21 15:07 ` Morten Brørup
@ 2024-10-30  8:24 ` David Marchand
  1 sibling, 0 replies; 3+ messages in thread
From: David Marchand @ 2024-10-30  8:24 UTC (permalink / raw)
  To: Sivaprasad Tummala
  Cc: bruce.richardson, maxime.coquelin, mb, ferruh.yigit,
	konstantin.ananyev, thomas, aconole, dev

On Mon, Oct 21, 2024 at 12:21 PM Sivaprasad Tummala
<sivaprasad.tummala@amd.com> wrote:
>
> On x86 platforms, max lcores are limited to 128 by default.
>
> On AMD EPYC processors, this limit was adjusted for native builds in
> the commit acb34af951cf ("config/x86: increase lcores number for native
> AMD EPYC")
>
> 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>

Applied, thanks.


-- 
David Marchand


^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2024-10-30  8:24 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2024-10-21 10:21 [PATCH v1] config/x86: add lcore support for AMD EPYC Zen5 platforms Sivaprasad Tummala
2024-10-21 15:07 ` Morten Brørup
2024-10-30  8:24 ` David Marchand

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).