From: Joongi Kim <joongi@an.kaist.ac.kr>
To: Stephen Hemminger <stephen@networkplumber.org>,
Adrien Mazarguil <adrien.mazarguil@6wind.com>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH 00/17] Enhance mlx5 with Mellanox OFED 3.1
Date: Wed, 07 Oct 2015 13:30:30 +0000 [thread overview]
Message-ID: <CAKOGY8LxocZ+k6L8Y1SfjBmHYzZ8upj5MOq+Xkk+82sCmZbLdg@mail.gmail.com> (raw)
In-Reply-To: <20151006095416.55a16e0c@uryu.home.lan>
My laboratory (an.kaist.ac.kr) had tried to build a native kernel driver
for mlx4 a few months ago, and sent the full patch to the patchwork system:
http://dpdk.org/dev/patchwork/patch/6128/
This driver supports only minimal RX/TX of packets, and many standard
features such as VLAN are missing.
The major technical difficulty was to make a memory region that is
persistent even when the user process terminates. We have sent another
patch for this: http://dpdk.org/dev/patchwork/patch/6127/
Nonetheless, we abandoned this approach, because the new mlx4 PMD based on
OFED 3.0 performed almost same or better than our native driver with an
almost complete feature set. Still, I believe that there are rooms to
improve/optimize the native driver but we just do not have enough human
resources for that.
In background, we tried to publish a academic paper about an automated
convertor from Linux NIC drivers to DPDK poll-mode drivers, but
unfortunately this project is being hold back now.
Regards,
Joongi
2015년 10월 6일 (화) 오후 5:54, Stephen Hemminger <stephen@networkplumber.org>님이
작성:
> On Mon, 5 Oct 2015 19:54:35 +0200
> Adrien Mazarguil <adrien.mazarguil@6wind.com> wrote:
>
> > Mellanox OFED 3.1 [1] comes with improved APIs that Mellanox ConnectX-4
> > (mlx5) adapters can take advantage of, such as:
> >
> > - Separate post and doorbell operations on all queues.
> > - Lightweight RX queues called Work Queues (WQs).
> > - Low-level RSS indirection table and hash key configuration.
> >
> > This patchset enhances mlx5 with all of these for better performance and
> > flexibility. Documentation is updated accordingly.
>
> Has anybody explored doing a driver without the dependency on OFED?
> It is certainly possible. The Linux kernel drivers don't depend on it.
> And dropping OFED would certainly be faster.
>
next prev parent reply other threads:[~2015-10-07 13:30 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-05 17:54 Adrien Mazarguil
2015-10-05 17:54 ` [dpdk-dev] [PATCH 01/17] mlx5: use fast Verbs interface for scattered RX operation Adrien Mazarguil
2015-10-05 17:54 ` [dpdk-dev] [PATCH 02/17] mlx5: get rid of the WR structure in RX queue elements Adrien Mazarguil
2015-10-05 17:54 ` [dpdk-dev] [PATCH 03/17] mlx5: refactor RX code for the new Verbs RSS API Adrien Mazarguil
2015-10-05 17:54 ` [dpdk-dev] [PATCH 04/17] mlx5: restore allmulti and promisc modes after device restart Adrien Mazarguil
2015-10-05 17:54 ` [dpdk-dev] [PATCH 05/17] mlx5: use separate indirection table for default hash RX queue Adrien Mazarguil
2015-10-05 17:54 ` [dpdk-dev] [PATCH 06/17] mlx5: adapt indirection table size depending on RX queues number Adrien Mazarguil
2015-10-05 17:54 ` [dpdk-dev] [PATCH 07/17] mlx5: define specific flow steering rules for each hash RX QP Adrien Mazarguil
2015-10-05 17:54 ` [dpdk-dev] [PATCH 08/17] mlx5: use alternate method to configure promiscuous mode Adrien Mazarguil
2015-10-05 17:54 ` [dpdk-dev] [PATCH 09/17] mlx5: add RSS hash update/get Adrien Mazarguil
2015-10-05 17:54 ` [dpdk-dev] [PATCH 10/17] mlx5: use one RSS hash key per flow type Adrien Mazarguil
2015-10-05 17:54 ` [dpdk-dev] [PATCH 11/17] app/testpmd: add missing type to RSS hash commands Adrien Mazarguil
2015-10-05 17:54 ` [dpdk-dev] [PATCH 12/17] app/testpmd: fix missing initialization in the RSS hash show command Adrien Mazarguil
2015-10-05 17:54 ` [dpdk-dev] [PATCH 13/17] mlx5: remove normal MAC flows when enabling promiscuous mode Adrien Mazarguil
2015-10-05 17:54 ` [dpdk-dev] [PATCH 14/17] mlx5: use experimental flows in hash RX queues Adrien Mazarguil
2015-10-05 17:54 ` [dpdk-dev] [PATCH 15/17] mlx5: enable multi packet send WR in TX CQ Adrien Mazarguil
2015-10-05 17:54 ` [dpdk-dev] [PATCH 16/17] mlx5: fix compilation error with GCC < 4.6 Adrien Mazarguil
2015-10-05 17:54 ` [dpdk-dev] [PATCH 17/17] doc: update mlx5 documentation Adrien Mazarguil
2015-10-06 8:54 ` [dpdk-dev] [PATCH 00/17] Enhance mlx5 with Mellanox OFED 3.1 Stephen Hemminger
2015-10-06 9:58 ` Vincent JARDIN
2015-10-07 13:30 ` Joongi Kim [this message]
2015-10-30 18:55 ` [dpdk-dev] [PATCH v2 00/16] " Adrien Mazarguil
2015-10-30 18:55 ` [dpdk-dev] [PATCH v2 01/16] mlx5: use fast Verbs interface for scattered RX operation Adrien Mazarguil
2015-10-30 18:55 ` [dpdk-dev] [PATCH v2 02/16] mlx5: get rid of the WR structure in RX queue elements Adrien Mazarguil
2015-10-30 18:55 ` [dpdk-dev] [PATCH v2 03/16] mlx5: refactor RX code for the new Verbs RSS API Adrien Mazarguil
2015-10-30 18:55 ` [dpdk-dev] [PATCH v2 04/16] mlx5: use separate indirection table for default hash RX queue Adrien Mazarguil
2015-10-30 18:55 ` [dpdk-dev] [PATCH v2 05/16] mlx5: adapt indirection table size depending on RX queues number Adrien Mazarguil
2015-10-30 18:55 ` [dpdk-dev] [PATCH v2 06/16] mlx5: define specific flow steering rules for each hash RX QP Adrien Mazarguil
2015-10-30 18:55 ` [dpdk-dev] [PATCH v2 07/16] mlx5: use alternate method to configure promisc and allmulti modes Adrien Mazarguil
2015-10-30 18:55 ` [dpdk-dev] [PATCH v2 08/16] mlx5: add RSS hash update/get Adrien Mazarguil
2015-10-30 18:55 ` [dpdk-dev] [PATCH v2 09/16] mlx5: use one RSS hash key per flow type Adrien Mazarguil
2015-10-30 18:55 ` [dpdk-dev] [PATCH v2 10/16] app/testpmd: add missing type to RSS hash commands Adrien Mazarguil
2015-10-30 18:55 ` [dpdk-dev] [PATCH v2 11/16] app/testpmd: fix missing initialization in the RSS hash show command Adrien Mazarguil
2015-10-30 18:55 ` [dpdk-dev] [PATCH v2 12/16] mlx5: disable useless flows in promiscuous mode Adrien Mazarguil
2015-10-30 18:55 ` [dpdk-dev] [PATCH v2 13/16] mlx5: add IPv6 RSS support using experimental flows Adrien Mazarguil
2015-10-30 18:55 ` [dpdk-dev] [PATCH v2 14/16] mlx5: enable multi packet send WR in TX CQ Adrien Mazarguil
2015-10-30 18:55 ` [dpdk-dev] [PATCH v2 15/16] mlx5: fix compilation error with GCC < 4.6 Adrien Mazarguil
2015-10-30 18:55 ` [dpdk-dev] [PATCH v2 16/16] doc: update mlx5 documentation Adrien Mazarguil
2015-11-01 10:26 ` [dpdk-dev] [PATCH v2 00/16] Enhance mlx5 with Mellanox OFED 3.1 Thomas Monjalon
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