netdev - RE: [Intel-wired-lan] [PATCH net-next v8 1/2] ethtool: Add GTP RSS hash options to ethtool.h

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <CYYPR11MB8429DCD5AD7C3E8ECFD635D3BD222@CYYPR11MB8429.namprd11.prod.outlook.com>
Date: Tue, 5 Mar 2024 14:49:28 +0000
From: "Pucha, HimasekharX Reddy" <himasekharx.reddy.pucha@...el.com>
To: Takeru Hayasaka <hayatake396@...il.com>, "Brandeburg, Jesse"
	<jesse.brandeburg@...el.com>, "Nguyen, Anthony L"
	<anthony.l.nguyen@...el.com>, "David S. Miller" <davem@...emloft.net>, "Eric
 Dumazet" <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni
	<pabeni@...hat.com>, Jonathan Corbet <corbet@....net>
CC: "linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	"vladimir.oltean@....com" <vladimir.oltean@....com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"laforge@...monks.org" <laforge@...monks.org>, Marcin Szycik
	<marcin.szycik@...ux.intel.com>, "intel-wired-lan@...ts.osuosl.org"
	<intel-wired-lan@...ts.osuosl.org>, "netdev@...r.kernel.org"
	<netdev@...r.kernel.org>, "mailhol.vincent@...adoo.fr"
	<mailhol.vincent@...adoo.fr>
Subject: RE: [Intel-wired-lan] [PATCH net-next v8 1/2] ethtool: Add GTP RSS
 hash options to ethtool.h

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@...osl.org> On Behalf Of Takeru Hayasaka
> Sent: Monday, February 12, 2024 7:34 AM
> To: Brandeburg, Jesse <jesse.brandeburg@...el.com>; Nguyen, Anthony L <anthony.l.nguyen@...el.com>; David S. Miller <davem@...emloft.net>; Eric Dumazet <edumazet@...gle.com>; Jakub Kicinski <kuba@...nel.org>; Paolo Abeni <pabeni@...hat.com>; Jonathan Corbet <corbet@....net>
> Cc: linux-doc@...r.kernel.org; vladimir.oltean@....com; linux-kernel@...r.kernel.org; laforge@...monks.org; Marcin Szycik <marcin.szycik@...ux.intel.com>; intel-wired-lan@...ts.osuosl.org; Takeru Hayasaka <hayatake396@...il.com>; netdev@...r.kernel.org; mailhol.vincent@...adoo.fr
> Subject: [Intel-wired-lan] [PATCH net-next v8 1/2] ethtool: Add GTP RSS hash options to ethtool.h
>
> This is a patch that enables RSS functionality for GTP packets using ethtool.
>
> A user can include TEID and make RSS work for GTP-U over IPv4 by doing the
> following:`ethtool -N ens3 rx-flow-hash gtpu4 sde`
>
> In addition to gtpu(4|6), we now support gtpc(4|6),gtpc(4|6)t,gtpu(4|6)e,
> gtpu(4|6)u, and gtpu(4|6)d.
>
> gtpc(4|6): Used for GTP-C in IPv4 and IPv6, where the GTP header format does
> not include a TEID.
> gtpc(4|6)t: Used for GTP-C in IPv4 and IPv6, with a GTP header format that
> includes a TEID.
> gtpu(4|6): Used for GTP-U in both IPv4 and IPv6 scenarios.
> gtpu(4|6)e: Used for GTP-U with extended headers in both IPv4 and IPv6.
> gtpu(4|6)u: Used when the PSC (PDU session container) in the GTP-U extended
> header includes Uplink, applicable to both IPv4 and IPv6.
> gtpu(4|6)d: Used when the PSC in the GTP-U extended header includes Downlink,
> for both IPv4 and IPv6.
>
> GTP generates a flow that includes an ID called TEID to identify the tunnel.
> This tunnel is created for each UE (User Equipment).By performing RSS based on
> this flow, it is possible to apply RSS for each communication unit from the UE.
> Without this, RSS would only be effective within the range of IP addresses. For
> instance, the PGW can only perform RSS within the IP range of the SGW.
> Problematic from a load distribution perspective, especially if there's a bias
> in the terminals connected to a particular base station.This case can be
> solved by using this patch.
>
> Signed-off-by: Takeru Hayasaka <hayatake396@...il.com>
> Reviewed-by: Marcin Szycik <marcin.szycik@...ux.intel.com>
> ---
> v2->v3: Based on Harald-san's review, I added documentation and comments to
> ethtool.h and ice.rst.
> v3->v4: Based on Marcin-san's review, I added the missing code for GTPC and
> GTPC_TEID, and revised the documentation and comments.
> v4->v5: Based on Marcin-san's review, I fixed rename and wrong code regarding
> GTPC
> v5->v6: Based on Marcin-san's review, Undoing the addition of unnecessary
> blank lines.Minor fixes.
> v6->v7 Based on Jakub-san's review, Split the patch.
> v7->v8: There are no code changes. I've resent the patch, including Marcin-san's
> patch, because PatchWork did not interpret the patch correctly.Simon-san told
> me. Thanks.
> include/uapi/linux/ethtool.h | 48 ++++++++++++++++++++++++++++++++++++
> 1 file changed, 48 insertions(+)
>

Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@...el.com> (A Contingent worker at Intel)