From: Thomas Monjalon <thomas.monjalon@6wind.com>
To: "Ananyev, Konstantin" <konstantin.ananyev@intel.com>
Cc: "Kulasek, TomaszX" <tomaszx.kulasek@intel.com>, dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH] doc: announce ABI change for rte_eth_dev structure
Date: Wed, 20 Jul 2016 17:22:07 +0200 [thread overview]
Message-ID: <2792307.Hs7AniM9ZW@xps13> (raw)
In-Reply-To: <2601191342CEEE43887BDE71AB97725836B7FFB6@irsmsx105.ger.corp.intel.com>
2016-07-20 15:13, Ananyev, Konstantin:
> Hi Thomas,
>
> > Hi,
> >
> > This patch announces an interesting change in the DPDK design.
> >
> > 2016-07-20 16:24, Tomasz Kulasek:
> > > This is an ABI deprecation notice for DPDK 16.11 in librte_ether about
> > > changes in rte_eth_dev and rte_eth_desc_lim structures.
> > >
> > > In 16.11, we plan to introduce rte_eth_tx_prep() function to do
> > > necessary preparations of packet burst to be safely transmitted on
> > > device for desired HW offloads (set/reset checksum field according to
> > > the hardware requirements) and check HW constraints (number of
> > > segments per packet, etc).
> > >
> > > While the limitations and requirements may differ for devices, it
> > > requires to extend rte_eth_dev structure with new function pointer
> > > "tx_pkt_prep" which can be implemented in the driver to prepare and
> > > verify packets, in devices specific way, before burst, what should to
> > > prevent application to send malformed packets.
> > >
> > > Also new fields will be introduced in rte_eth_desc_lim: nb_seg_max and
> > > nb_mtu_seg_max, providing an information about max segments in TSO and
> > > non TSO packets acceptable by device.
> >
> > We cannot acknowledge such notice without a prior design discussion.
> > Please explain why you plan to work on this change and give a draft of the new structures (a RFC patch would be ideal).
>
> I think it is not really a deprecation note, but announce ABI change for rte_ethdev.h structures.
An ABI break requires a deprecation notice. So it is :)
> The plan is to implement what was proposed & discussed the following thread:
> http://dpdk.org/ml/archives/dev/2015-September/023603.html
Please could you summarize it here?
next prev parent reply other threads:[~2016-07-20 15:22 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-20 14:24 Tomasz Kulasek
2016-07-20 15:01 ` Thomas Monjalon
2016-07-20 15:13 ` Ananyev, Konstantin
2016-07-20 15:22 ` Thomas Monjalon [this message]
2016-07-20 15:42 ` Kulasek, TomaszX
2016-07-21 15:24 ` [dpdk-dev] [PATCH v2] " Tomasz Kulasek
2016-07-21 22:48 ` Ananyev, Konstantin
2016-07-27 8:59 ` Thomas Monjalon
2016-07-27 17:10 ` Jerin Jacob
2016-07-27 17:33 ` Ananyev, Konstantin
2016-07-27 17:41 ` Jerin Jacob
2016-07-27 20:51 ` Ananyev, Konstantin
2016-07-28 2:13 ` Jerin Jacob
2016-07-28 10:36 ` Ananyev, Konstantin
2016-07-28 11:38 ` Jerin Jacob
2016-07-28 12:07 ` Avi Kivity
2016-07-28 13:01 ` Ananyev, Konstantin
2016-07-28 13:58 ` Olivier MATZ
2016-07-28 14:21 ` Ananyev, Konstantin
2016-07-28 13:59 ` Jerin Jacob
2016-07-28 14:52 ` Thomas Monjalon
2016-07-28 16:25 ` Jerin Jacob
2016-07-28 17:07 ` Thomas Monjalon
2016-07-31 7:50 ` Vlad Zolotarov
2016-07-28 12:04 ` Avi Kivity
2016-07-31 7:46 ` [dpdk-dev] [PATCH] " Vlad Zolotarov
2016-07-31 8:10 ` Vlad Zolotarov
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