netdev - Re: [PATCH RESEND net-next v4 0/4] net/mlx5e: Add GBP VxLAN HW offload support

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Date:   Mon, 6 Mar 2023 15:47:54 +0100
From:   Alexander Lobakin <aleksander.lobakin@...el.com>
To:     Gavin Li <gavinl@...dia.com>
CC:     <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
        <pabeni@...hat.com>, <roopa@...dia.com>,
        <eng.alaamohamedsoliman.am@...il.com>, <bigeasy@...utronix.de>,
        <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <gavi@...dia.com>, <roid@...dia.com>, <maord@...dia.com>,
        <saeedm@...dia.com>
Subject: Re: [PATCH RESEND net-next v4 0/4] net/mlx5e: Add GBP VxLAN HW
 offload support

From: Gavin Li <gavinl@...dia.com>
Date: Mon, 6 Mar 2023 05:02:58 +0200

> Patch-1: Remove unused argument from functions.
> Patch-2: Expose helper function vxlan_build_gbp_hdr.
> Patch-3: Add helper function for encap_info_equal for tunnels with options.
> Patch-4: Add HW offloading support for TC flows with VxLAN GBP encap/decap
>         in mlx ethernet driver.
> 
> Gavin Li (4):
>   vxlan: Remove unused argument from vxlan_build_gbp_hdr( ) and
>     vxlan_build_gpe_hdr( )
> ---
> changelog:
> v2->v3
> - Addressed comments from Paolo Abeni
> - Add new patch
> ---
>   vxlan: Expose helper vxlan_build_gbp_hdr
> ---
> changelog:
> v1->v2
> - Addressed comments from Alexander Lobakin
> - Use const to annotate read-only the pointer parameter
> ---
>   net/mlx5e: Add helper for encap_info_equal for tunnels with options
> ---
> changelog:
> v3->v4
> - Addressed comments from Alexander Lobakin
> - Fix vertical alignment issue
> v1->v2
> - Addressed comments from Alexander Lobakin
> - Replace confusing pointer arithmetic with function call
> - Use boolean operator NOT to check if the function return value is not zero
> ---
>   net/mlx5e: TC, Add support for VxLAN GBP encap/decap flows offload
> ---
> changelog:
> v3->v4
> - Addressed comments from Simon Horman
> - Using cast in place instead of changing API

I don't remember me acking this. The last thing I said is that in order
to avoid cast-aways you need to use _Generic(). 2 times. IIRC you said
"Ack" and that was the last message in that thread.
Now this. Without me in CCs, so I noticed it accidentally.
???

> v2->v3
> - Addressed comments from Alexander Lobakin
> - Remove the WA by casting away
> v1->v2
> - Addressed comments from Alexander Lobakin
> - Add a separate pair of braces around bitops
> - Remove the WA by casting away
> - Fit all log messages into one line
> - Use NL_SET_ERR_MSG_FMT_MOD to print the invalid value on error
> ---
> 
>  .../ethernet/mellanox/mlx5/core/en/tc_tun.h   |  3 +
>  .../mellanox/mlx5/core/en/tc_tun_encap.c      | 32 ++++++++
>  .../mellanox/mlx5/core/en/tc_tun_geneve.c     | 24 +-----
>  .../mellanox/mlx5/core/en/tc_tun_vxlan.c      | 76 ++++++++++++++++++-
>  drivers/net/vxlan/vxlan_core.c                | 27 +------
>  include/linux/mlx5/device.h                   |  6 ++
>  include/linux/mlx5/mlx5_ifc.h                 | 13 +++-
>  include/net/vxlan.h                           | 19 +++++
>  8 files changed, 149 insertions(+), 51 deletions(-)
> 

Thanks,
Olek