From: Thomas Monjalon <thomas@monjalon.net>
To: Stephen Hemminger <stephen@networkplumber.org>
Cc: dev@dpdk.org, ferruh.yigit@intel.com, david.marchand@redhat.com,
bruce.richardson@intel.com, olivier.matz@6wind.com,
andrew.rybchenko@oktetlabs.ru, jerinj@marvell.com,
viacheslavo@nvidia.com
Subject: Re: [dpdk-dev] [PATCH v5 00/16] remove mbuf timestamp
Date: Tue, 03 Nov 2020 17:20:20 +0100 [thread overview]
Message-ID: <35654921.Wzvq2zENnk@thomas> (raw)
In-Reply-To: <20201103080839.4d7d50ab@hermes.local>
03/11/2020 17:08, Stephen Hemminger:
> On Tue, 3 Nov 2020 15:09:15 +0100
> Thomas Monjalon <thomas@monjalon.net> wrote:
>
> > The mbuf field timestamp was announced to be removed for three reasons:
> > - a dynamic field already exist, used for Tx only
> > - this field always used 8 bytes even if unneeded
> > - this field is in the first half (cacheline) of mbuf
> >
> > After this series, the dynamic field timestamp is used for both Rx and Tx
> > with separate dynamic flags to distinguish when the value is meaningful
> > without resetting the field during forwarding.
>
> There should be a place in documentation which describes all the
> dynamic fields and their meaning. For example, which drivers/features
> set the field and the exact meaning.
A dynamic field can be registered by anyone, including the apps.
So you will never get a full list.
The meaning of each field should be defined in its context
(driver, lib or app).
> Is the timestamp in HW units, UTC units, or TSC ticks?
The timestamp unit is driver-specific.
It is explained in ethdev API:
http://doc.dpdk.org/api/rte__ethdev_8h.html#a4346bf07a0d302c9ba4fe06baffd3196
next prev parent reply other threads:[~2020-11-03 16:20 UTC|newest]
Thread overview: 170+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-29 9:27 [dpdk-dev] [PATCH 00/15] " Thomas Monjalon
2020-10-29 9:27 ` [dpdk-dev] [PATCH 01/15] eventdev: remove software Rx timestamp Thomas Monjalon
2020-10-29 9:27 ` [dpdk-dev] [PATCH 02/15] mbuf: add Rx timestamp dynamic flag Thomas Monjalon
2020-10-29 9:58 ` Andrew Rybchenko
2020-10-29 18:19 ` Ajit Khaparde
2020-10-29 9:27 ` [dpdk-dev] [PATCH 03/15] ethdev: register mbuf field and flags for timestamp Thomas Monjalon
2020-10-29 10:08 ` Andrew Rybchenko
2020-10-29 10:12 ` Thomas Monjalon
2020-10-29 10:33 ` Andrew Rybchenko
2020-10-29 10:46 ` Thomas Monjalon
2020-10-29 9:27 ` [dpdk-dev] [PATCH 04/15] latency: switch timestamp to dynamic mbuf field Thomas Monjalon
2020-10-29 10:13 ` Andrew Rybchenko
2020-10-29 10:40 ` Thomas Monjalon
2020-10-29 14:20 ` Pattan, Reshma
2020-10-29 16:15 ` Thomas Monjalon
2020-10-29 9:27 ` [dpdk-dev] [PATCH 05/15] net/ark: " Thomas Monjalon
2020-10-29 9:27 ` [dpdk-dev] [PATCH 06/15] net/dpaa2: " Thomas Monjalon
2020-10-29 9:27 ` [dpdk-dev] [PATCH 07/15] net/mlx5: fix dynamic mbuf offset lookup check Thomas Monjalon
2020-10-29 9:27 ` [dpdk-dev] [PATCH 08/15] net/mlx5: switch timestamp to dynamic mbuf field Thomas Monjalon
2020-10-29 9:27 ` [dpdk-dev] [PATCH 09/15] net/nfb: " Thomas Monjalon
2020-10-29 9:27 ` [dpdk-dev] [PATCH 10/15] net/octeontx2: " Thomas Monjalon
2020-10-29 11:02 ` Andrew Rybchenko
2020-10-29 11:34 ` Thomas Monjalon
2020-10-29 11:37 ` Andrew Rybchenko
2020-10-29 11:52 ` Slava Ovsiienko
2020-10-30 12:41 ` Jerin Jacob
2020-11-01 16:12 ` Thomas Monjalon
2020-11-01 20:00 ` Andrew Rybchenko
2020-10-29 9:27 ` [dpdk-dev] [PATCH 11/15] net/pcap: " Thomas Monjalon
2020-10-29 9:27 ` [dpdk-dev] [PATCH 12/15] app/testpmd: " Thomas Monjalon
2020-10-29 10:20 ` Andrew Rybchenko
2020-10-29 10:43 ` Thomas Monjalon
2020-10-29 10:52 ` Andrew Rybchenko
2020-10-29 9:27 ` [dpdk-dev] [PATCH 13/15] examples/rxtx_callbacks: switch timestamp to dynamic field Thomas Monjalon
2020-10-29 10:21 ` Andrew Rybchenko
2020-10-29 10:44 ` Thomas Monjalon
2020-10-29 9:27 ` [dpdk-dev] [PATCH 14/15] mbuf: remove deprecated timestamp field Thomas Monjalon
2020-10-29 10:23 ` Andrew Rybchenko
2020-10-29 18:18 ` Ajit Khaparde
2020-10-29 14:48 ` Kinsella, Ray
2020-10-29 9:27 ` [dpdk-dev] [PATCH 15/15] mbuf: move pool pointer in hotter first half Thomas Monjalon
2020-10-29 10:50 ` Andrew Rybchenko
2020-10-29 10:56 ` Thomas Monjalon
2020-10-29 14:15 ` Ananyev, Konstantin
2020-10-29 18:45 ` Ajit Khaparde
2020-10-31 18:20 ` [dpdk-dev] [PATCH 15/15] mbuf: move pool pointer in hotterfirst half Morten Brørup
2020-10-31 20:40 ` Thomas Monjalon
2020-11-01 9:12 ` Morten Brørup
2020-11-01 16:21 ` Thomas Monjalon
2020-11-01 16:38 ` Thomas Monjalon
2020-11-01 20:59 ` Morten Brørup
2020-11-02 15:58 ` Thomas Monjalon
2020-11-03 12:10 ` Morten Brørup
2020-11-03 12:25 ` Bruce Richardson
2020-11-03 13:46 ` Morten Brørup
2020-11-03 13:50 ` Bruce Richardson
2020-11-03 14:03 ` Morten Brørup
2020-11-03 14:02 ` Slava Ovsiienko
2020-11-03 15:03 ` Morten Brørup
2020-11-04 15:00 ` Olivier Matz
2020-11-05 0:25 ` Ananyev, Konstantin
2020-11-05 9:04 ` Morten Brørup
2020-11-05 9:35 ` Morten Brørup
2020-11-05 10:29 ` Bruce Richardson
2020-10-29 14:42 ` [dpdk-dev] [PATCH 15/15] mbuf: move pool pointer in hotter first half Kinsella, Ray
2020-11-01 18:06 ` [dpdk-dev] [PATCH v2 00/14] remove mbuf timestamp Thomas Monjalon
2020-11-01 18:06 ` [dpdk-dev] [PATCH v2 01/14] eventdev: remove software Rx timestamp Thomas Monjalon
2020-11-01 18:06 ` [dpdk-dev] [PATCH v2 02/14] mbuf: add Rx timestamp dynamic flag Thomas Monjalon
2020-11-01 18:06 ` [dpdk-dev] [PATCH v2 03/14] ethdev: register mbuf field and flags for timestamp Thomas Monjalon
2020-11-02 15:39 ` Olivier Matz
2020-11-02 16:52 ` Thomas Monjalon
2020-11-01 18:06 ` [dpdk-dev] [PATCH v2 04/14] latency: switch timestamp to dynamic mbuf field Thomas Monjalon
2020-11-01 18:06 ` [dpdk-dev] [PATCH v2 05/14] net/ark: " Thomas Monjalon
2020-11-02 15:32 ` Olivier Matz
2020-11-02 16:10 ` Thomas Monjalon
2020-11-01 18:06 ` [dpdk-dev] [PATCH v2 06/14] net/dpaa2: " Thomas Monjalon
2020-11-01 18:06 ` [dpdk-dev] [PATCH v2 07/14] net/mlx5: fix dynamic mbuf offset lookup check Thomas Monjalon
2020-11-01 18:06 ` [dpdk-dev] [PATCH v2 08/14] net/mlx5: switch timestamp to dynamic mbuf field Thomas Monjalon
2020-11-02 5:08 ` Ruifeng Wang
2020-11-02 23:20 ` David Christensen
2020-11-01 18:06 ` [dpdk-dev] [PATCH v2 09/14] net/nfb: " Thomas Monjalon
2020-11-01 18:06 ` [dpdk-dev] [PATCH v2 10/14] net/octeontx2: " Thomas Monjalon
2020-11-01 18:28 ` Jerin Jacob
2020-11-02 9:38 ` Thomas Monjalon
2020-11-02 11:01 ` Thomas Monjalon
2020-11-01 18:06 ` [dpdk-dev] [PATCH v2 11/14] net/pcap: " Thomas Monjalon
2020-11-01 18:06 ` [dpdk-dev] [PATCH v2 12/14] app/testpmd: " Thomas Monjalon
2020-11-01 18:06 ` [dpdk-dev] [PATCH v2 13/14] examples/rxtx_callbacks: switch timestamp to dynamic field Thomas Monjalon
2020-11-01 18:06 ` [dpdk-dev] [PATCH v2 14/14] mbuf: remove deprecated timestamp field Thomas Monjalon
2020-11-02 15:41 ` Olivier Matz
2020-11-02 15:47 ` David Marchand
2020-11-02 15:49 ` Thomas Monjalon
2020-11-01 18:08 ` [dpdk-dev] [PATCH v2 00/14] remove mbuf timestamp Thomas Monjalon
2020-11-03 0:13 ` [dpdk-dev] [PATCH v3 00/16] " Thomas Monjalon
2020-11-03 0:13 ` [dpdk-dev] [PATCH v3 01/16] eventdev: remove software Rx timestamp Thomas Monjalon
2020-11-03 0:13 ` [dpdk-dev] [PATCH v3 02/16] mbuf: add Rx timestamp flag and helpers Thomas Monjalon
2020-11-03 9:33 ` Olivier Matz
2020-11-03 9:59 ` Thomas Monjalon
2020-11-03 0:13 ` [dpdk-dev] [PATCH v3 03/16] latency: switch Rx timestamp to dynamic mbuf field Thomas Monjalon
2020-11-03 0:13 ` [dpdk-dev] [PATCH v3 04/16] net/ark: " Thomas Monjalon
2020-11-03 0:13 ` [dpdk-dev] [PATCH v3 05/16] net/dpaa2: " Thomas Monjalon
2020-11-03 9:18 ` Hemant Agrawal
2020-11-03 0:13 ` [dpdk-dev] [PATCH v3 06/16] net/mlx5: fix dynamic mbuf offset lookup check Thomas Monjalon
2020-11-03 8:12 ` Slava Ovsiienko
2020-11-03 0:13 ` [dpdk-dev] [PATCH v3 07/16] net/mlx5: switch Rx timestamp to dynamic mbuf field Thomas Monjalon
2020-11-03 8:12 ` Slava Ovsiienko
2020-11-03 0:13 ` [dpdk-dev] [PATCH v3 08/16] net/nfb: " Thomas Monjalon
2020-11-03 10:20 ` Olivier Matz
2020-11-03 0:14 ` [dpdk-dev] [PATCH v3 09/16] net/octeontx2: " Thomas Monjalon
2020-11-03 10:52 ` Harman Kalra
2020-11-03 11:22 ` Thomas Monjalon
2020-11-03 12:21 ` Thomas Monjalon
2020-11-03 14:23 ` [dpdk-dev] [EXT] " Harman Kalra
2020-11-03 0:14 ` [dpdk-dev] [PATCH v3 10/16] net/pcap: " Thomas Monjalon
2020-11-03 0:14 ` [dpdk-dev] [PATCH v3 11/16] app/testpmd: " Thomas Monjalon
2020-11-03 10:23 ` Olivier Matz
2020-11-03 0:14 ` [dpdk-dev] [PATCH v3 12/16] examples/rxtx_callbacks: switch timestamp to dynamic field Thomas Monjalon
2020-11-03 0:14 ` [dpdk-dev] [PATCH v3 13/16] ethdev: add doxygen comment for Rx timestamp API Thomas Monjalon
2020-11-03 0:14 ` [dpdk-dev] [PATCH v3 14/16] mbuf: remove deprecated timestamp field Thomas Monjalon
2020-11-03 0:14 ` [dpdk-dev] [PATCH v3 15/16] mbuf: add Tx timestamp registration helper Thomas Monjalon
2020-11-03 0:14 ` [dpdk-dev] [PATCH v3 16/16] ethdev: include mbuf registration in Tx timestamp API Thomas Monjalon
2020-11-03 7:54 ` Slava Ovsiienko
2020-11-03 9:00 ` [dpdk-dev] [PATCH v3 00/16] remove mbuf timestamp David Marchand
2020-11-03 12:21 ` [dpdk-dev] [PATCH v4 " Thomas Monjalon
2020-11-03 12:21 ` [dpdk-dev] [PATCH v4 01/16] eventdev: remove software Rx timestamp Thomas Monjalon
2020-11-03 12:21 ` [dpdk-dev] [PATCH v4 02/16] mbuf: add Rx timestamp flag and helpers Thomas Monjalon
2020-11-03 12:34 ` Andrew Rybchenko
2020-11-03 12:21 ` [dpdk-dev] [PATCH v4 03/16] latency: switch Rx timestamp to dynamic mbuf field Thomas Monjalon
2020-11-03 12:21 ` [dpdk-dev] [PATCH v4 04/16] net/ark: " Thomas Monjalon
2020-11-03 12:37 ` Andrew Rybchenko
2020-11-03 13:08 ` Thomas Monjalon
2020-11-03 12:21 ` [dpdk-dev] [PATCH v4 05/16] net/dpaa2: " Thomas Monjalon
2020-11-03 12:21 ` [dpdk-dev] [PATCH v4 06/16] net/mlx5: fix dynamic mbuf offset lookup check Thomas Monjalon
2020-11-03 12:21 ` [dpdk-dev] [PATCH v4 07/16] net/mlx5: switch Rx timestamp to dynamic mbuf field Thomas Monjalon
2020-11-03 12:21 ` [dpdk-dev] [PATCH v4 08/16] net/nfb: " Thomas Monjalon
2020-11-03 12:21 ` [dpdk-dev] [PATCH v4 09/16] net/octeontx2: " Thomas Monjalon
2020-11-03 12:21 ` [dpdk-dev] [PATCH v4 10/16] net/pcap: " Thomas Monjalon
2020-11-03 12:22 ` [dpdk-dev] [PATCH v4 11/16] app/testpmd: " Thomas Monjalon
2020-11-03 12:22 ` [dpdk-dev] [PATCH v4 12/16] examples/rxtx_callbacks: switch timestamp to dynamic field Thomas Monjalon
2020-11-03 12:22 ` [dpdk-dev] [PATCH v4 13/16] ethdev: add doxygen comment for Rx timestamp API Thomas Monjalon
2020-11-03 12:40 ` Andrew Rybchenko
2020-11-03 12:22 ` [dpdk-dev] [PATCH v4 14/16] mbuf: remove deprecated timestamp field Thomas Monjalon
2020-11-03 12:22 ` [dpdk-dev] [PATCH v4 15/16] mbuf: add Tx timestamp registration helper Thomas Monjalon
2020-11-03 12:42 ` Andrew Rybchenko
2020-11-03 12:22 ` [dpdk-dev] [PATCH v4 16/16] ethdev: include mbuf registration in Tx timestamp API Thomas Monjalon
2020-11-03 12:45 ` Andrew Rybchenko
2020-11-03 14:09 ` [dpdk-dev] [PATCH v5 00/16] remove mbuf timestamp Thomas Monjalon
2020-11-03 14:09 ` [dpdk-dev] [PATCH v5 01/16] eventdev: remove software Rx timestamp Thomas Monjalon
2020-11-03 14:09 ` [dpdk-dev] [PATCH v5 02/16] mbuf: add Rx timestamp flag and helpers Thomas Monjalon
2020-11-03 14:09 ` [dpdk-dev] [PATCH v5 03/16] latency: switch Rx timestamp to dynamic mbuf field Thomas Monjalon
2020-11-03 14:09 ` [dpdk-dev] [PATCH v5 04/16] net/ark: " Thomas Monjalon
2020-11-03 14:09 ` [dpdk-dev] [PATCH v5 05/16] net/dpaa2: " Thomas Monjalon
2020-11-03 14:09 ` [dpdk-dev] [PATCH v5 06/16] net/mlx5: fix dynamic mbuf offset lookup check Thomas Monjalon
2020-11-03 14:09 ` [dpdk-dev] [PATCH v5 07/16] net/mlx5: switch Rx timestamp to dynamic mbuf field Thomas Monjalon
2020-11-03 14:09 ` [dpdk-dev] [PATCH v5 08/16] net/nfb: " Thomas Monjalon
2020-11-03 14:09 ` [dpdk-dev] [PATCH v5 09/16] net/octeontx2: " Thomas Monjalon
2020-11-03 14:09 ` [dpdk-dev] [PATCH v5 10/16] net/pcap: " Thomas Monjalon
2020-11-03 14:09 ` [dpdk-dev] [PATCH v5 11/16] app/testpmd: " Thomas Monjalon
2020-11-03 14:09 ` [dpdk-dev] [PATCH v5 12/16] examples/rxtx_callbacks: switch timestamp to dynamic field Thomas Monjalon
2020-11-03 14:09 ` [dpdk-dev] [PATCH v5 13/16] ethdev: add doxygen comment for Rx timestamp API Thomas Monjalon
2020-11-03 19:07 ` Ajit Khaparde
2020-11-03 14:09 ` [dpdk-dev] [PATCH v5 14/16] mbuf: remove deprecated timestamp field Thomas Monjalon
2020-11-03 14:09 ` [dpdk-dev] [PATCH v5 15/16] mbuf: add Tx timestamp registration helper Thomas Monjalon
2020-11-03 14:09 ` [dpdk-dev] [PATCH v5 16/16] ethdev: include mbuf registration in Tx timestamp API Thomas Monjalon
2020-11-03 14:17 ` [dpdk-dev] [PATCH v5 00/16] remove mbuf timestamp Olivier Matz
2020-11-03 14:44 ` Thomas Monjalon
2020-11-03 16:08 ` Stephen Hemminger
2020-11-03 16:20 ` Thomas Monjalon [this message]
2020-11-03 17:42 ` Stephen Hemminger
2020-11-03 17:55 ` Thomas Monjalon
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