From: Ferruh Yigit <ferruh.yigit@intel.com>
To: Viacheslav Ovsiienko <viacheslavo@mellanox.com>, dev@dpdk.org
Cc: yskoh@mellanox.com
Subject: Re: [dpdk-dev] [PATCH v4 6/8] net/mlx5: introduce Tx burst routine template
Date: Mon, 22 Jul 2019 12:53:21 +0100 [thread overview]
Message-ID: <980c7f61-d6b2-f794-8405-62ee1a339870@intel.com> (raw)
In-Reply-To: <1563719100-368-7-git-send-email-viacheslavo@mellanox.com>
On 7/21/2019 3:24 PM, Viacheslav Ovsiienko wrote:
> Mellanox NICs support the wide set of Tx offloads. The supported
> offloads are reported by the mlx5 PMD in rte_eth_dev_info tx_offload_capa
> field. An application may choose any combination of supported offloads
> and configure the device appropriately. Some of Tx offloads may be
> not requested by application, or ever all of them may be omitted.
> Most of the Tx offloads require some code branches in tx_burst routine
> to support ones. If Tx offload is not requested the tx_burst routine
> code may be significantly simplified and consume less CPU cycles.
>
> For example, if application does not engage TSO offload this code
> can be omitted, if multi-segment packet is not supposed the tx_burst
> may assume single mbuf packets only, etc.
>
> Currently, the mlx5 PMD implements multiple tx_burst subroutines
> for most common combinations of requested Tx offloads, each branch
> has its own dedicated implementation. It is not very easy to update,
> support and develop such kind of code - multiple branches impose
> the multiple points to process. Also many of frequently requested
> offload combinations are not supported yet. That leads to selecting of
> not completely matching tx_burst routine and harms the performance.
>
> This patch introduces the new approach for tx_burst code. It is proposed
> to develop the unified template for tx_burst routine, which supports
> all the Tx offloads and takes the compile time defined parameter
> describing the supposed set of supported offloads. On the base
> of this template, the compiler is able to generate multiple tx_burst
> routines highly optimized for the statically specified set of Tx offloads.
> Next, in runtime, at Tx queue configuration the best matching optimized
> implementation of tx_burst is chosen.
>
> This patch intentionally omits the template internal implementation,
> but just introduces the template itself to emboss the approach of
> the multiple specially tuned tx_burst routines.
>
> Signed-off-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
Getting following build error with icc, can you please check?
.../dpdk/drivers/net/mlx5/mlx5_rxtx.c(4649): error #191: type qualifier is
meaningless on cast type
MLX5_TXOFF_DECL(full_empw,
^
.../dpdk/drivers/net/mlx5/mlx5_rxtx.c(4652): error #191: type qualifier is
meaningless on cast type
MLX5_TXOFF_DECL(none_empw,
^
Many of same error for "MLX5_TXOFF_DECL" usage.
next prev parent reply other threads:[~2019-07-22 11:56 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-04 16:29 [dpdk-dev] [PATCH 0/7] net/mlx5: consolidate Tx datapath Viacheslav Ovsiienko
2019-07-04 16:29 ` [dpdk-dev] [PATCH 1/7] net/mlx5: remove Tx datapath implementation Viacheslav Ovsiienko
2019-07-15 13:59 ` [dpdk-dev] [PATCH v2 0/7] net/mlx5: consolidate Tx datapath Viacheslav Ovsiienko
2019-07-15 13:59 ` [dpdk-dev] [PATCH v2 1/7] net/mlx5: remove Tx datapath implementation Viacheslav Ovsiienko
2019-07-15 13:59 ` [dpdk-dev] [PATCH v2 2/7] net/mlx5: add Tx datapath related devargs Viacheslav Ovsiienko
2019-07-15 13:59 ` [dpdk-dev] [PATCH v2 3/7] net/mlx5: update Tx datapath definitions Viacheslav Ovsiienko
2019-07-15 13:59 ` [dpdk-dev] [PATCH v2 4/7] net/mlx5: add Tx datapath configuration and setup Viacheslav Ovsiienko
2019-07-15 13:59 ` [dpdk-dev] [PATCH v2 5/7] net/mlx5: introduce Tx burst routine template Viacheslav Ovsiienko
2019-07-15 13:59 ` [dpdk-dev] [PATCH v2 6/7] net/mlx5: implement Tx burst template Viacheslav Ovsiienko
2019-07-15 13:59 ` [dpdk-dev] [PATCH v2 7/7] net/mlx5: add minimal required Tx data inline Viacheslav Ovsiienko
2019-07-17 6:53 ` [dpdk-dev] [PATCH v3 0/8] net/mlx5: consolidate Tx datapath Viacheslav Ovsiienko
2019-07-17 6:53 ` [dpdk-dev] [PATCH v3 1/8] net/mlx5: remove Tx datapath implementation Viacheslav Ovsiienko
2019-07-17 6:53 ` [dpdk-dev] [PATCH v3 2/8] net/mlx5: add Tx datapath related devargs Viacheslav Ovsiienko
2019-07-17 6:53 ` [dpdk-dev] [PATCH v3 3/8] net/mlx5: update Tx datapath definitions Viacheslav Ovsiienko
2019-07-17 6:53 ` [dpdk-dev] [PATCH v3 4/8] net/mlx5: add Tx datapath configuration and setup Viacheslav Ovsiienko
2019-07-17 6:53 ` [dpdk-dev] [PATCH v3 5/8] net/mlx5: introduce Tx burst routine template Viacheslav Ovsiienko
2019-07-17 6:53 ` [dpdk-dev] [PATCH v3 6/8] net/mlx5: implement Tx burst template Viacheslav Ovsiienko
2019-07-17 6:53 ` [dpdk-dev] [PATCH v3 7/8] net/mlx5: add minimal required Tx data inline Viacheslav Ovsiienko
2019-07-17 6:53 ` [dpdk-dev] [PATCH v3 8/8] net/mlx5: report supported max number of mbuf segments Viacheslav Ovsiienko
2019-07-21 14:24 ` [dpdk-dev] [PATCH v4 0/8] net/mlx5: consolidate Tx datapath Viacheslav Ovsiienko
2019-07-21 14:24 ` [dpdk-dev] [PATCH v4 1/8] net/mlx5: remove Tx datapath implementation Viacheslav Ovsiienko
2019-07-22 5:32 ` Yongseok Koh
2019-07-21 14:24 ` [dpdk-dev] [PATCH v4 2/8] net/mlx5: add Tx datapath related devargs Viacheslav Ovsiienko
2019-07-22 5:32 ` Yongseok Koh
2019-07-21 14:24 ` [dpdk-dev] [PATCH v4 3/8] net/mlx5: update Tx datapath definitions Viacheslav Ovsiienko
2019-07-22 5:33 ` Yongseok Koh
2019-07-21 14:24 ` [dpdk-dev] [PATCH v4 4/8] net/mlx5: extend NIC attributes query via DevX Viacheslav Ovsiienko
2019-07-22 5:33 ` Yongseok Koh
2019-07-21 14:24 ` [dpdk-dev] [PATCH v4 5/8] net/mlx5: add Tx datapath configuration and setup Viacheslav Ovsiienko
2019-07-22 5:33 ` Yongseok Koh
2019-07-21 14:24 ` [dpdk-dev] [PATCH v4 6/8] net/mlx5: introduce Tx burst routine template Viacheslav Ovsiienko
2019-07-22 5:34 ` Yongseok Koh
2019-07-22 11:53 ` Ferruh Yigit [this message]
2019-07-22 13:07 ` Slava Ovsiienko
2019-07-22 16:45 ` Ferruh Yigit
2019-07-22 16:49 ` Yongseok Koh
2019-07-22 19:00 ` Slava Ovsiienko
2019-07-22 18:26 ` [dpdk-dev] [PATCH] net/mlx5: fix icc compilation issue with type qualifier Viacheslav Ovsiienko
2019-07-22 19:07 ` Ferruh Yigit
2019-07-21 14:24 ` [dpdk-dev] [PATCH v4 7/8] net/mlx5: implement Tx burst template Viacheslav Ovsiienko
2019-07-22 5:34 ` Yongseok Koh
2019-07-21 14:25 ` [dpdk-dev] [PATCH v4 8/8] net/mlx5: report supported max number of mbuf segments Viacheslav Ovsiienko
2019-07-22 5:34 ` Yongseok Koh
2019-07-22 8:42 ` [dpdk-dev] [PATCH v4 0/8] net/mlx5: consolidate Tx datapath Raslan Darawsheh
2019-07-04 16:29 ` [dpdk-dev] [PATCH 2/7] net/mlx5: add Tx datapath related devargs Viacheslav Ovsiienko
2019-07-04 16:29 ` [dpdk-dev] [PATCH 3/7] net/mlx5: update Tx datapath definitions Viacheslav Ovsiienko
2019-07-04 16:29 ` [dpdk-dev] [PATCH 4/7] net/mlx5: add Tx datapath configuration and setup Viacheslav Ovsiienko
2019-07-04 16:29 ` [dpdk-dev] [PATCH 5/7] net/mlx5: introduce Tx burst routine template Viacheslav Ovsiienko
2019-07-04 16:29 ` [dpdk-dev] [PATCH 6/7] net/mlx5: implement Tx burst template Viacheslav Ovsiienko
2019-07-04 16:29 ` [dpdk-dev] [PATCH 7/7] net/mlx5: add minimal required Tx data inline Viacheslav Ovsiienko
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