linux-kernel - RE: [PATCH net-next 0/6] igc: Fix corner cases for TSN offload

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Message-ID: <SJ1PR11MB6180B5C87699252B91FB7EE1B858A@SJ1PR11MB6180.namprd11.prod.outlook.com>
Date:   Fri, 16 Jun 2023 15:53:58 +0000
From:   "Zulkifli, Muhammad Husaini" <muhammad.husaini.zulkifli@...el.com>
To:     Florian Kauer <florian.kauer@...utronix.de>,
        "Brandeburg, Jesse" <jesse.brandeburg@...el.com>,
        "Nguyen, Anthony L" <anthony.l.nguyen@...el.com>,
        "Gomes, Vinicius" <vinicius.gomes@...el.com>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        "Tan Tee Min" <tee.min.tan@...ux.intel.com>,
        "Gunasekaran, Aravindhan" <aravindhan.gunasekaran@...el.com>,
        "Chilakala, Mallikarjuna" <mallikarjuna.chilakala@...el.com>
CC:     "intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "kurt@...utronix.de" <kurt@...utronix.de>
Subject: RE: [PATCH net-next 0/6] igc: Fix corner cases for TSN offload

Dear Florian,

Thanks for the patch series 😊

> -----Original Message-----
> From: Florian Kauer <florian.kauer@...utronix.de>
> Sent: Wednesday, 14 June, 2023 10:07 PM
> To: Brandeburg, Jesse <jesse.brandeburg@...el.com>; Nguyen, Anthony L
> <anthony.l.nguyen@...el.com>; Gomes, Vinicius <vinicius.gomes@...el.com>;
> David S . Miller <davem@...emloft.net>; Eric Dumazet
> <edumazet@...gle.com>; Jakub Kicinski <kuba@...nel.org>; Paolo Abeni
> <pabeni@...hat.com>; Tan Tee Min <tee.min.tan@...ux.intel.com>; Zulkifli,
> Muhammad Husaini <muhammad.husaini.zulkifli@...el.com>; Gunasekaran,
> Aravindhan <aravindhan.gunasekaran@...el.com>; Chilakala, Mallikarjuna
> <mallikarjuna.chilakala@...el.com>
> Cc: intel-wired-lan@...ts.osuosl.org; netdev@...r.kernel.org; linux-
> kernel@...r.kernel.org; kurt@...utronix.de; florian.kauer@...utronix.de
> Subject: [PATCH net-next 0/6] igc: Fix corner cases for TSN offload
> 
> The igc driver supports several different offloading capabilities relevant in the
> TSN context. Recent patches in this area introduced regressions for certain
> corner cases that are fixed in this series.
> 
> Each of the patches (except the first one) addresses a different regression that
> can be separately reproduced. Still, they have overlapping code changes so they
> should not be separately applied.
> 
> Especially #4 and #6 address the same observation, but both need to be applied
> to avoid TX hang occurrences in the scenario described in the patches.
> 
> Signed-off-by: Florian Kauer <florian.kauer@...utronix.de>
> Reviewed-by: Kurt Kanzenbach <kurt@...utronix.de>
> 
> Florian Kauer (6):
>   igc: Rename qbv_enable to taprio_offload_enable
>   igc: Do not enable taprio offload for invalid arguments
>   igc: Handle already enabled taprio offload for basetime 0
>   igc: No strict mode in pure launchtime/CBS offload
>   igc: Fix launchtime before start of cycle
>   igc: Fix inserting of empty frame for launchtime

All six patches, as far as I can see here, have the Fixes tag. Should they go to Net instead of Net-Next?

> 
>  drivers/net/ethernet/intel/igc/igc.h      |  2 +-
>  drivers/net/ethernet/intel/igc/igc_main.c | 24 ++++++++-------------
> drivers/net/ethernet/intel/igc/igc_tsn.c  | 26 ++++++++++++++++++++---
>  3 files changed, 33 insertions(+), 19 deletions(-)
> 
> --
> 2.39.2