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Message-Id: <1497526540-30028-1-git-send-email-tariqt@mellanox.com>
Date: Thu, 15 Jun 2017 14:35:30 +0300
From: Tariq Toukan <tariqt@...lanox.com>
To: "David S. Miller" <davem@...emloft.net>
Cc: netdev@...r.kernel.org, Eran Ben Elisha <eranbe@...lanox.com>,
Saeed Mahameed <saeedm@...lanox.com>, kernel-team@...com,
Tariq Toukan <tariqt@...lanox.com>
Subject: [PATCH net-next 00/10] mlx4 XDP performance improvements
Hi Dave,
This patchset contains data-path improvements, mainly for XDP_DROP
and XDP_TX cases.
Main patches:
* Patch 2 by Saeed allows enabling optimized A0 RX steering (in HW) when
setting a single RX ring.
With this configuration, HW packet-rate dramatically improves,
reaching 28.1 Mpps in XDP_DROP case for both IPv4 (37% gain)
and IPv6 (53% gain).
* Patch 6 enhances the XDP xmit function. Among other changes, now we
ring one doorbell per NAPI. Patch gives 17% gain in XDP_TX case.
* Patch 7 obsoletes the NAPI of XDP_TX completion queue and integrates its
poll into the respective RX NAPI. Patch gives 15% gain in XDP_TX case.
Series generated against net-next commit:
f7aec129a356 rxrpc: Cache the congestion window setting
Thanks,
Tariq.
Saeed Mahameed (1):
net/mlx4_en: Optimized single ring steering
Tariq Toukan (9):
net/mlx4_en: Remove unused argument in TX datapath function
net/mlx4_en: Improve receive data-path
net/mlx4_en: Improve transmit CQ polling
net/mlx4_en: Improve stack xmit function
net/mlx4_en: Improve XDP xmit function
net/mlx4_en: Poll XDP TX completion queue in RX NAPI
net/mlx4_en: Increase default TX ring size
net/mlx4_en: Replace TXBB_SIZE multiplications with shift operations
net/mlx4_en: Refactor mlx4_en_free_tx_desc
drivers/net/ethernet/mellanox/mlx4/en_cq.c | 25 +-
drivers/net/ethernet/mellanox/mlx4/en_main.c | 6 +-
drivers/net/ethernet/mellanox/mlx4/en_netdev.c | 20 +-
drivers/net/ethernet/mellanox/mlx4/en_rx.c | 145 ++++++++----
drivers/net/ethernet/mellanox/mlx4/en_tx.c | 305 ++++++++++++-------------
drivers/net/ethernet/mellanox/mlx4/main.c | 4 +-
drivers/net/ethernet/mellanox/mlx4/mlx4_en.h | 23 +-
7 files changed, 293 insertions(+), 235 deletions(-)
--
1.8.3.1
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