DPDK patches and discussions
 help / color / mirror / Atom feed
From: "Dumitrescu, Cristian" <cristian.dumitrescu@intel.com>
To: "Mattias Rönnblom" <mattias.ronnblom@ericsson.com>,
	"Ananyev, Konstantin" <konstantin.ananyev@intel.com>,
	"Pattan, Reshma" <reshma.pattan@intel.com>,
	"dev@dpdk.org" <dev@dpdk.org>,
	"jerin.jacob@caviumnetworks.com" <jerin.jacob@caviumnetworks.com>,
	"Singh, Jasvinder" <jasvinder.singh@intel.com>
Subject: Re: [dpdk-dev] [PATCH v2 2/3] eal: add new rte color definition
Date: Mon, 17 Dec 2018 09:41:03 +0000	[thread overview]
Message-ID: <3EB4FA525960D640B5BDFFD6A3D891268E815AFE@IRSMSX108.ger.corp.intel.com> (raw)
In-Reply-To: <128d5503-af19-c9bb-d59c-43b71471f9c4@ericsson.com>



> -----Original Message-----
> From: Mattias Rönnblom [mailto:mattias.ronnblom@ericsson.com]
> Sent: Saturday, December 15, 2018 2:16 PM
> To: Ananyev, Konstantin <konstantin.ananyev@intel.com>; Pattan, Reshma
> <reshma.pattan@intel.com>; dev@dpdk.org; Dumitrescu, Cristian
> <cristian.dumitrescu@intel.com>; jerin.jacob@caviumnetworks.com; Singh,
> Jasvinder <jasvinder.singh@intel.com>
> Subject: Re: [dpdk-dev] [PATCH v2 2/3] eal: add new rte color definition
> 
> On 2018-12-15 00:35, Ananyev, Konstantin wrote:
> > Hi Reshma,
> >
> >> diff --git a/lib/librte_eal/common/include/rte_color.h
> b/lib/librte_eal/common/include/rte_color.h
> >> new file mode 100644
> >> index 000000000..f4387071b
> >> --- /dev/null
> >> +++ b/lib/librte_eal/common/include/rte_color.h
> >> @@ -0,0 +1,18 @@
> >> +/* SPDX-License-Identifier: BSD-3-Clause
> >> + * Copyright(c) 2018 Intel Corporation
> >> + */
> >> +
> >> +#ifndef _RTE_COLOR_H_
> >> +#define _RTE_COLOR_H_
> >> +
> >> +/**
> >> + * Color
> >> + */
> >> +enum rte_color {
> >> +	RTE_COLOR_GREEN = 0, /**< Green */
> >> +	RTE_COLOR_YELLOW, /**< Yellow */
> >> +	RTE_COLOR_RED, /**< Red */
> >> +	RTE_COLORS /**< Number of colors */
> >> +};
> >
> > Does it really belong to EAL?
> > Konstantin
> >
> 
> If this is supposed to be a generic type, we definitely need
> RTE_COLOR_BLACK as well, or RTE_COLOR_VERY_VERY_DARK_GREY.
> 
> /Batman

Hi Mattias,

The packet color values of (green, yellow, red) are not my invention, they are part of the IETF DiffServ foundation and standardized by a long list of RFCs, with just a few of them listed below:

	RFC 2697 - srTCM
	RFC 2698 - trTCM
	RFC 4115 - trTCM
	RFC 2597 - Assured Forwarding

It is also easy to check in the documentation from Cisco, Juniper and other router vendors that the packet color values used for traffic metering and policing are always (green, yellow, red).

So, bottom line:
	1. This is a formal as well as a de facto standard, to me it makes no sense for DPDK to do it differently. Why not align to the formal and de facto industry standards?
	2. DPDK already recognized this in a number of its APIs, such as: rte_meter, ethdev rte_mtr, ethdev rte_tm, rte_sched. This patch is simply a cosmetic consolidation of the packet color definition for easier integration of all these API, it does not propose any API change. If you want to change any of these APIs, please describe the motivation and send a separate patch for review.

Regards,
Cristian



  parent reply	other threads:[~2018-12-17  9:41 UTC|newest]

Thread overview: 74+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-23 16:54 [dpdk-dev] [PATCH] mbuf: implement generic format for sched field Jasvinder Singh
2018-11-26 11:37 ` Dumitrescu, Cristian
2018-11-29 10:42   ` Singh, Jasvinder
2018-12-04 17:39     ` Dumitrescu, Cristian
2018-12-05 12:22       ` Singh, Jasvinder
2018-12-01 14:22 ` Jerin Jacob
2018-12-05 11:15   ` Singh, Jasvinder
2018-12-10 17:49   ` Dumitrescu, Cristian
2018-12-07 14:31 ` [dpdk-dev] [PATCH v2 1/3] " Reshma Pattan
2018-12-11 19:02   ` Dumitrescu, Cristian
2018-12-12 18:17   ` Dumitrescu, Cristian
2018-12-13  8:51   ` Rao, Nikhil
2018-12-13 18:08   ` [dpdk-dev] [PATCH v3 1/2] eal: add new rte color definition Reshma Pattan
2018-12-13 18:08     ` [dpdk-dev] [PATCH v3 2/2] mbuf: implement generic format for sched field Reshma Pattan
2018-12-14 22:52       ` Dumitrescu, Cristian
2018-12-20  8:32         ` Olivier Matz
2018-12-20 11:19           ` Dumitrescu, Cristian
2018-12-14 22:19     ` [dpdk-dev] [PATCH v3 1/2] eal: add new rte color definition Dumitrescu, Cristian
2018-12-17 20:35     ` Thomas Monjalon
2018-12-18 15:40     ` [dpdk-dev] [PATCH v4 1/2] meter: " Reshma Pattan
2018-12-18 15:40       ` [dpdk-dev] [PATCH v4 2/2] mbuf: implement generic format for sched field Reshma Pattan
2018-12-19 15:34       ` [dpdk-dev] [PATCH v5 1/2] meter: add new rte color definition Reshma Pattan
2018-12-19 15:34         ` [dpdk-dev] [PATCH v5 2/2] mbuf: implement generic format for sched field Reshma Pattan
2018-12-19 15:42         ` [dpdk-dev] [PATCH v6 1/2] meter: add new rte color definition Reshma Pattan
2018-12-19 15:42           ` [dpdk-dev] [PATCH v6 2/2] mbuf: implement generic format for sched field Reshma Pattan
2018-12-19 18:14             ` Ananyev, Konstantin
2018-12-20  8:29             ` Olivier Matz
2018-12-20 11:28               ` Dumitrescu, Cristian
2018-12-20 12:41                 ` Olivier Matz
2018-12-20 12:16           ` [dpdk-dev] [PATCH v7 1/2] meter: add new rte color definition Reshma Pattan
2018-12-20 12:16             ` [dpdk-dev] [PATCH v7 2/2] mbuf: implement generic format for sched field Reshma Pattan
2018-12-20 12:43               ` Olivier Matz
2018-12-20 19:11                 ` Dumitrescu, Cristian
2018-12-20 14:55               ` Rao, Nikhil
2019-01-15 22:37               ` Stephen Hemminger
2019-01-16  9:19                 ` Pattan, Reshma
2019-01-16  9:33                   ` Dumitrescu, Cristian
2019-01-16 10:09                     ` Singh, Jasvinder
2019-01-15 23:11               ` Stephen Hemminger
2019-01-16  8:41                 ` Thomas Monjalon
2018-12-07 14:31 ` [dpdk-dev] [PATCH v2 2/3] eal: add new rte color definition Reshma Pattan
2018-12-10 18:24   ` Dumitrescu, Cristian
2018-12-14 23:35   ` Ananyev, Konstantin
2018-12-15  0:16     ` Dumitrescu, Cristian
2018-12-17 11:21       ` Ananyev, Konstantin
2018-12-17 17:15         ` Pattan, Reshma
2018-12-17 18:51           ` Dumitrescu, Cristian
2018-12-17 23:11             ` Thomas Monjalon
2018-12-18 10:30               ` Dumitrescu, Cristian
2018-12-18 11:18               ` Dumitrescu, Cristian
2018-12-18 12:38                 ` Thomas Monjalon
2018-12-18 13:19                   ` Dumitrescu, Cristian
2018-12-18 13:39                     ` Thomas Monjalon
2018-12-18 17:07                       ` Ananyev, Konstantin
2018-12-18 19:34                         ` Dumitrescu, Cristian
2018-12-18 20:19                           ` Thomas Monjalon
2018-12-19 10:47                             ` Dumitrescu, Cristian
2018-12-19 10:50                               ` Thomas Monjalon
2018-12-19 10:52                             ` Ananyev, Konstantin
2018-12-19 10:49                           ` Ananyev, Konstantin
2018-12-19 11:04                             ` Dumitrescu, Cristian
2018-12-18 10:15             ` Ananyev, Konstantin
2018-12-18 10:25               ` Pattan, Reshma
2018-12-18 10:38                 ` Ananyev, Konstantin
2018-12-18 10:41                   ` Pattan, Reshma
2018-12-18 10:52                     ` Singh, Jasvinder
2018-12-18 12:10                       ` Ananyev, Konstantin
2018-12-15 14:15     ` Mattias Rönnblom
2018-12-17  7:27       ` Pattan, Reshma
2018-12-17  9:41       ` Dumitrescu, Cristian [this message]
2018-12-17 19:36         ` Mattias Rönnblom
2018-12-17 23:24           ` Ferruh Yigit
2018-12-07 14:31 ` [dpdk-dev] [PATCH v2 3/3] doc: add deprecation notice to remove rte meter color Reshma Pattan
2018-12-11 14:58   ` Dumitrescu, Cristian

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=3EB4FA525960D640B5BDFFD6A3D891268E815AFE@IRSMSX108.ger.corp.intel.com \
    --to=cristian.dumitrescu@intel.com \
    --cc=dev@dpdk.org \
    --cc=jasvinder.singh@intel.com \
    --cc=jerin.jacob@caviumnetworks.com \
    --cc=konstantin.ananyev@intel.com \
    --cc=mattias.ronnblom@ericsson.com \
    --cc=reshma.pattan@intel.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).