netdev - Re: [PATCH net-next v2 09/10] bnxt: convert to new udp_tunnel

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Message-ID: <CACKFLikN6utQT2eXKtnhZFMYxt8Tem-An=6cxX6nXgPiO+k5UQ@mail.gmail.com>
Date:   Wed, 8 Jul 2020 22:27:13 -0700
From:   Michael Chan <michael.chan@...adcom.com>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     David Miller <davem@...emloft.net>,
        Netdev <netdev@...r.kernel.org>,
        Saeed Mahameed <saeedm@...lanox.com>,
        Edwin Peer <edwin.peer@...adcom.com>,
        emil.s.tantilov@...el.com, alexander.h.duyck@...ux.intel.com,
        jeffrey.t.kirsher@...el.com, Tariq Toukan <tariqt@...lanox.com>,
        mkubecek@...e.cz
Subject: Re: [PATCH net-next v2 09/10] bnxt: convert to new udp_tunnel_nic infra

On Wed, Jul 8, 2020 at 6:18 PM Jakub Kicinski <kuba@...nel.org> wrote:
>
> Convert to new infra, taking advantage of sleeping in callbacks.
>
> Signed-off-by: Jakub Kicinski <kuba@...nel.org>
> ---
>  drivers/net/ethernet/broadcom/bnxt/bnxt.c | 133 ++++++----------------
>  drivers/net/ethernet/broadcom/bnxt/bnxt.h |   6 -
>  2 files changed, 34 insertions(+), 105 deletions(-)
>

> diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
> index 78e2fd63ac3d..352a56a18916 100644
> --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
> +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
> @@ -1752,10 +1752,8 @@ struct bnxt {
>  #define BNXT_FW_MAJ(bp)                ((bp)->fw_ver_code >> 48)
>
>         __be16                  vxlan_port;

We can also do away with vxlan_port and nge_port, now that we no
longer need to pass the port from NDO to workqueue.  We just need to
initialize the 2 firmware tunnel IDs to INVALID_HW_RING_ID before use
and after free.  But it is ok the way you have it too.

I like this v2 version better with the VXLAN and GENEVE types defined.

Thanks.

> -       u8                      vxlan_port_cnt;
>         __le16                  vxlan_fw_dst_port_id;
>         __be16                  nge_port;
> -       u8                      nge_port_cnt;
>         __le16                  nge_fw_dst_port_id;
>         u8                      port_partition_type;
>         u8                      port_count;