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From:   Pavan Chebbi <pavan.chebbi@broadcom.com>
Date:   Mon, 7 Aug 2023 20:20:11 +0530
Message-ID: <CALs4sv1OGqYguPUVoErc25tcEDetVA6z1ANjz9+vNp3q7WTR=Q@mail.gmail.com>
Subject: Re: [PATCH net-next] net: mana: Add gdma stats to ethtool output for mana
To:     Shradha Gupta <shradhagupta@linux.microsoft.com>
Cc:     linux-kernel@vger.kernel.org, linux-hyperv@vger.kernel.org,
        linux-rdma@vger.kernel.org, netdev@vger.kernel.org,
        Eric Dumazet <edumazet@google.com>,
        Jakub Kicinski <kuba@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>,
        Ajay Sharma <sharmaajay@microsoft.com>,
        Leon Romanovsky <leon@kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
        "K. Y. Srinivasan" <kys@microsoft.com>,
        Haiyang Zhang <haiyangz@microsoft.com>,
        Wei Liu <wei.liu@kernel.org>, Dexuan Cui <decui@microsoft.com>,
        Long Li <longli@microsoft.com>,
        Michael Kelley <mikelley@microsoft.com>
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On Mon, Aug 7, 2023 at 4:29=E2=80=AFPM Shradha Gupta
<shradhagupta@linux.microsoft.com> wrote:
>
> Extended performance counter stats in 'ethtool -S <interface>'
> for MANA VF to include GDMA tx LSO packets and bytes count.
>
> Tested-on: Ubuntu22
> Testcases:
> 1. LISA testcase:
> PERF-NETWORK-TCP-THROUGHPUT-MULTICONNECTION-NTTTCP-Synthetic
> 2. LISA testcase:
> PERF-NETWORK-TCP-THROUGHPUT-MULTICONNECTION-NTTTCP-SRIOV
> 3. Validated the GDMA stat packets and byte counters
> Signed-off-by: Shradha Gupta <shradhagupta@linux.microsoft.com>
> ---
>  drivers/net/ethernet/microsoft/mana/mana_en.c | 40 +++++++++
>  .../ethernet/microsoft/mana/mana_ethtool.c    | 15 ++++
>  include/net/mana/mana.h                       | 88 +++++++++++++++++++
>  3 files changed, 143 insertions(+)
>
> diff --git a/drivers/net/ethernet/microsoft/mana/mana_en.c b/drivers/net/=
ethernet/microsoft/mana/mana_en.c
> index ac2acc9aca9d..eb5e4164b9bf 100644
> --- a/drivers/net/ethernet/microsoft/mana/mana_en.c
> +++ b/drivers/net/ethernet/microsoft/mana/mana_en.c
> @@ -2234,6 +2234,46 @@ int mana_config_rss(struct mana_port_context *apc,=
 enum TRI_STATE rx,
>         return 0;
>  }
>
> +void mana_query_gf_stats(struct mana_port_context *apc)
> +{
> +       struct mana_query_gf_stat_req   req =3D {};

nit: remove the space before 'req' and rearrange in reverse x-mas order

> +       struct mana_query_gf_stat_resp resp =3D {};
> +       struct net_device *ndev =3D apc->ndev;

> +#define STATISTICS_FLAGS_HC_TX_BCAST_PACKETS           0x000000000100000=
0
> +#define STATISTICS_FLAGS_HC_TX_BCAST_BYTES             0x000000000200000=
0
> +/* Tx error */
> +#define STATISTICS_FLAGS_TX_ERRORS_GDMA_ERROR          0x000000000400000=
0
> +
> +

Checkpatch is warning about this.
Otherwise it looks good.

>  #define MANA_MAX_NUM_QUEUES 64
>
>  #define MANA_SHORT_VPORT_OFFSET_MAX ((1U << 8) - 1)
> --
> 2.34.1
>
>

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