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From: Rami Rosen <roszenrami@gmail.com>
To: David Marchand <david.marchand@redhat.com>
Cc: Yongseok Koh <yskoh@mellanox.com>,
	Olivier Matz <olivier.matz@6wind.com>,
	 Shahaf Shuler <shahafs@mellanox.com>,
	dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH v2 1/2] mbuf: add function returning default buffer address
Date: Thu, 10 Jan 2019 03:39:29 +0200
Message-ID: <CAKoUArnv4oQvOBOiH7cBVzc3rD63r_=L5pD=QhkH2YMMue_Ceg@mail.gmail.com> (raw)
In-Reply-To: <CAJFAV8ze4K90-snGs0Ddj7Ff6sejgd7KY-Zw=3wHST=gcqLOVw@mail.gmail.com>

Hi, Yongseok,

Maybe you should consider using the pool member of the mbuf, instead of
passing it as a parameter for rte_mbuf_buf_addr_default().
The pool member of mbuf indicates the pool from which it was allocated.
See
http://git.dpdk.org/dpdk/tree/lib/librte_mbuf/rte_mbuf.h#n631

And actually the is exactly what you do in the second method,
rte_mbuf_data_baddr_default(),
when invoking the first,  this is also kind of non consistency.

>> David Marchand wrote:

> So for me s/rte_mbuf_buf_addr_default/rte_mbuf_buf_addr/g


> Or just rte_mbuf_data_addr_default() ?

+ 1

>> David Marchand wrote:

>Those are new functions, they should go through the EXPERIMENTAL api

>marking process.


+1

Regards,
Rami Rosen

בתאריך יום ד׳, 9 בינו׳ 2019, 15:47, מאת David Marchand <
david.marchand@redhat.com>:

> On Wed, Jan 9, 2019 at 2:19 PM Yongseok Koh <yskoh@mellanox.com> wrote:
>
> > This patch introduces two new functions - rte_mbuf_buf_addr_default() and
> > rte_mbuf_data_baddr_default().
> >
> > rte_mbuf_buf_addr_default() reutrns the default buffer address of given
> > mbuf which comes after mbuf structure and private data.
> >
>
> The buffer address should always be the same for a given mbuf, there is no
> "default" value for it, there is only one value.
> So for me s/rte_mbuf_buf_addr_default/rte_mbuf_buf_addr/g.
>
>
> > rte_mbuf_data_baddr_default() returns the default address of mbuf data
> > taking the headroom into account.
> >
>
> Or just rte_mbuf_data_addr_default() ?
>
>
> > Signed-off-by: Yongseok Koh <yskoh@mellanox.com>
> >
>
> Those are new functions, they should go through the EXPERIMENTAL api
> marking process.
>
>
> --
> David Marchand
>

  reply	other threads:[~2019-01-10  1:39 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-09  8:54 [dpdk-dev] [PATCH] net/mlx5: fix instruction hotspot on replenishing Rx buffer Yongseok Koh
2019-01-09  9:38 ` David Marchand
2019-01-09  9:52   ` Olivier Matz
2019-01-09  9:56     ` Yongseok Koh
2019-01-09 10:05       ` David Marchand
2019-01-09 10:11         ` Yongseok Koh
2019-01-09 13:19 ` [dpdk-dev] [PATCH v2 1/2] mbuf: add function returning default buffer address Yongseok Koh
2019-01-09 13:19   ` [dpdk-dev] [PATCH v2 2/2] net/mlx5: fix instruction hotspot on replenishing Rx buffer Yongseok Koh
2019-01-09 13:46   ` [dpdk-dev] [PATCH v2 1/2] mbuf: add function returning default buffer address David Marchand
2019-01-10  1:39     ` Rami Rosen [this message]
2019-01-10 18:18       ` Yongseok Koh
2019-01-10 18:22     ` Yongseok Koh
2019-01-10 18:35 ` [dpdk-dev] [PATCH v3 " Yongseok Koh
2019-01-10 18:35   ` [dpdk-dev] [PATCH v3 2/2] net/mlx5: fix instruction hotspot on replenishing Rx buffer Yongseok Koh
2019-01-10 19:10     ` Shahaf Shuler
2019-01-11  8:14   ` [dpdk-dev] [PATCH v3 1/2] mbuf: add function returning default buffer address Andrew Rybchenko
2019-01-11 11:03     ` Yongseok Koh
2019-01-11 11:17       ` Andrew Rybchenko
2019-01-11 11:37         ` Yongseok Koh
2019-01-11 11:57         ` Bruce Richardson
2019-01-11 12:48           ` David Marchand
2019-01-14 15:51             ` Olivier Matz
2019-01-10 22:40 ` [dpdk-dev] [PATCH v4 " Yongseok Koh
2019-01-10 22:40   ` [dpdk-dev] [PATCH v4 2/2] net/mlx5: fix instruction hotspot on replenishing Rx buffer Yongseok Koh
2019-01-11  8:05   ` [dpdk-dev] [PATCH v4 1/2] mbuf: add function returning default buffer address Olivier Matz
2019-01-11  8:11   ` David Marchand
2019-01-11  8:32     ` David Marchand
2019-01-11 11:09       ` Yongseok Koh
2019-01-11 10:25     ` Thomas Monjalon
2019-01-14 21:16 ` [dpdk-dev] [PATCH v5 1/2] mbuf: add function returning " Yongseok Koh
2019-01-14 21:16   ` [dpdk-dev] [PATCH v5 2/2] net/mlx5: fix instruction hotspot on replenishing Rx buffer Yongseok Koh
2019-02-06 15:54     ` Kevin Traynor
2019-02-21 19:10       ` Kevin Traynor
2019-03-08  2:05         ` Yongseok Koh
2019-01-15  1:35   ` [dpdk-dev] [PATCH v5 1/2] mbuf: add function returning buffer address Thomas Monjalon

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