netdev - Re: [PATCH net-next v8 08/15] p4tc: add P4 data types

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Date: Fri, 17 Nov 2023 07:01:31 -0500
From: Jamal Hadi Salim <jhs@...atatu.com>
To: Jiri Pirko <jiri@...nulli.us>
Cc: netdev@...r.kernel.org, deb.chatterjee@...el.com, anjali.singhai@...el.com, 
	namrata.limaye@...el.com, tom@...anda.io, mleitner@...hat.com, 
	Mahesh.Shirshyad@....com, tomasz.osinski@...el.com, xiyou.wangcong@...il.com, 
	davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com, 
	vladbu@...dia.com, horms@...nel.org, daniel@...earbox.net, 
	bpf@...r.kernel.org, khalidm@...dia.com, toke@...hat.com, mattyk@...dia.com
Subject: Re: [PATCH net-next v8 08/15] p4tc: add P4 data types

On Thu, Nov 16, 2023 at 11:03 AM Jiri Pirko <jiri@...nulli.us> wrote:
>
> Thu, Nov 16, 2023 at 03:59:41PM CET, jhs@...atatu.com wrote:
>
> [...]
>
> >diff --git a/include/net/p4tc_types.h b/include/net/p4tc_types.h
> >new file mode 100644
> >index 000000000..8f6f002ae
>
> [...]
>
> >+#define P4T_MAX_BITSZ 128
>
> [...]
>
> >+#define P4T_MAX_STR_SZ 32
>
> [...]
>
>
> >diff --git a/include/uapi/linux/p4tc.h b/include/uapi/linux/p4tc.h
> >new file mode 100644
> >index 000000000..ba32dba66
> >--- /dev/null
> >+++ b/include/uapi/linux/p4tc.h
> >@@ -0,0 +1,33 @@
> >+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
> >+#ifndef __LINUX_P4TC_H
> >+#define __LINUX_P4TC_H
> >+
> >+#define P4TC_MAX_KEYSZ 512
> >+
> >+enum {
> >+      P4T_UNSPEC,
>
> I wonder, what it the reason for "P4T"/"P4TC" prefix inconsistency.
> In the kernel header, that could be fixes, but in uapi header this is
> forever. Is this just to be aligned with other TC uapi
> inconsitencies? :D
>

P4T is for "types" - but ok, we can change it to P4TC_XXX for consistency.

cheers,
jamal