netdev - Re: [PATCH net-next 0/4] Introduce adaptive TX interrupt moderation to net DIM

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Date:   Fri, 30 Mar 2018 09:43:06 +0300
From:   Tal Gilboa <talgi@...lanox.com>
To:     "David S. Miller" <davem@...emloft.net>
Cc:     netdev@...r.kernel.org, Tariq Toukan <tariqt@...lanox.com>,
        Andy Gospodarek <andrew.gospodarek@...adcom.com>,
        Saeed Mahameed <saeedm@...lanox.com>,
        Florian Fainelli <f.fainelli@...il.com>
Subject: Re: [PATCH net-next 0/4] Introduce adaptive TX interrupt moderation
 to net DIM

On 3/30/2018 9:37 AM, Tal Gilboa wrote:
> Net DIM is a library designed for dynamic interrupt moderation. It was
> implemented and optimized with receive side interrupts in mind, since these
> are usually the CPU expensive ones. This patch-set introduces adaptive transmit
> interrupt moderation to net DIM, complete with a usage in the mlx5e driver.
> Using adaptive TX behavior would reduce interrupt rate for multiple scenarios.
> Furthermore, it is essential for increasing bandwidth on cases where payload
> aggregation is required.

Important note: In order to avoid conflicts, this patch-set is rebased 
over Florian Fainelli's "[PATCH net-next v2 3/3] net: bcmgenet: Fix 
coalescing settings handling" patch.

> 
> Tal Gilboa (4):
>    net/dim: Rename *_get_profile() functions to *_get_rx_moderation()
>    net/dim: Add "enabled" field to net_dim struct
>    net/dim: Support adaptive TX moderation
>    net/mlx5e: Enable adaptive-TX moderation
> 
>   drivers/net/ethernet/broadcom/bcmsysport.c         |  2 +-
>   drivers/net/ethernet/broadcom/bnxt/bnxt_dim.c      |  8 +--
>   drivers/net/ethernet/broadcom/genet/bcmgenet.c     |  2 +-
>   drivers/net/ethernet/mellanox/mlx5/core/en.h       |  5 +-
>   drivers/net/ethernet/mellanox/mlx5/core/en_dim.c   | 28 ++++++---
>   .../net/ethernet/mellanox/mlx5/core/en_ethtool.c   | 35 +++++++----
>   drivers/net/ethernet/mellanox/mlx5/core/en_main.c  | 34 ++++++++--
>   drivers/net/ethernet/mellanox/mlx5/core/en_rep.c   |  2 +-
>   drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c  | 37 ++++++++---
>   include/linux/net_dim.h                            | 72 +++++++++++++++++-----
>   10 files changed, 169 insertions(+), 56 deletions(-)
>