netdev - Re: [PATCH net] Documentation: fix sctp

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Date:   Tue, 19 Jul 2022 15:49:06 -0300
From:   Marcelo Ricardo Leitner <marcelo.leitner@...il.com>
To:     Xin Long <lucien.xin@...il.com>
Cc:     network dev <netdev@...r.kernel.org>, linux-sctp@...r.kernel.org,
        davem@...emloft.net, kuba@...nel.org
Subject: Re: [PATCH net] Documentation: fix sctp_wmem in ip-sysctl.rst

On Mon, Jul 18, 2022 at 01:54:56PM -0400, Xin Long wrote:
> Since commit 1033990ac5b2 ("sctp: implement memory accounting on tx path"),
> SCTP has supported memory accounting on tx path where 'sctp_wmem' is used
> by sk_wmem_schedule(). So we should fix the description for this option in
> ip-sysctl.rst accordingly.
> 
> Fixes: 1033990ac5b2 ("sctp: implement memory accounting on tx path")
> Signed-off-by: Xin Long <lucien.xin@...il.com>
> ---
>  Documentation/networking/ip-sysctl.rst | 9 ++++++++-
>  1 file changed, 8 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/networking/ip-sysctl.rst b/Documentation/networking/ip-sysctl.rst
> index 0e58001f8580..b7db2e5e5cc5 100644
> --- a/Documentation/networking/ip-sysctl.rst
> +++ b/Documentation/networking/ip-sysctl.rst
> @@ -2870,7 +2870,14 @@ sctp_rmem - vector of 3 INTEGERs: min, default, max
>  	Default: 4K
>  
>  sctp_wmem  - vector of 3 INTEGERs: min, default, max
> -	Currently this tunable has no effect.
> +	Only the first value ("min") is used, "default" and "max" are
> +	ignored.
> +
> +	min: Minimal size of send buffer used by SCTP socket.

I'm not a native English speaker, but this seems better:
"Minimum size of send buffer that can be used by an SCTP socket."

> +	It is guaranteed to each SCTP socket (but not association) even
> +	under moderate memory pressure.
> +
> +	Default: 4K
>  
>  addr_scope_policy - INTEGER
>  	Control IPv4 address scoping - draft-stewart-tsvwg-sctp-ipv4-00
> -- 
> 2.31.1
>