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From: Thomas Monjalon <thomas@monjalon.net>
To: "Harris, James R" <james.r.harris@intel.com>,
	"Walker, Benjamin" <benjamin.walker@intel.com>,
	"Xia, Chenbo" <chenbo.xia@intel.com>
Cc: "Liu, Changpeng" <changpeng.liu@intel.com>,
	David Marchand <david.marchand@redhat.com>,
	"dev@dpdk.org" <dev@dpdk.org>, Aaron Conole <aconole@redhat.com>,
	"Zawadzki, Tomasz" <tomasz.zawadzki@intel.com>
Subject: Re: [dpdk-dev] [PATCH v2 0/7] Removal of PCI bus ABIs
Date: Thu, 14 Oct 2021 10:25:53 +0200	[thread overview]
Message-ID: <1722442.PpsNWNFnZ4@thomas> (raw)
In-Reply-To: <SN6PR11MB35049389D8FC8027525E6C9A9CB89@SN6PR11MB3504.namprd11.prod.outlook.com>

14/10/2021 10:07, Xia, Chenbo:
> From: Thomas Monjalon <thomas@monjalon.net>
> > 14/10/2021 09:00, Xia, Chenbo:
> > > From: Thomas Monjalon <thomas@monjalon.net>
> > > > 14/10/2021 04:21, Xia, Chenbo:
> > > > > From: Thomas Monjalon <thomas@monjalon.net>
> > > > > > Yes I think we need to agree on functions to keep as-is for
> > compatibility.
> > > > > > Waiting for your input please.
> > > > >
> > > > > So, do you mean currently DPDK doesn't guarantee ABI for drivers
> > > >
> > > > Yes
> > > >
> > > > > but could have driver ABI in the future?
> > > >
> > > > I don't think so, not general compatibility,
> > > > but we can think about a way to avoid breaking SPDK specifically,
> > > > which has less requirements.
> > >
> > > So the problem here is exposing some APIs to SPDK directly? Without the
> > 'enable_driver_sdk'
> > > option, I don't see a solution of both exposed and not-ABI. Any idea in your
> > mind?
> > 
> > No the idea is to keep using enable_driver_sdk.
> > But so far, there is no compatibility guarantee for driver SDK.
> > The discussion is about which basic compatibility requirement is needed for
> > SPDK.
> 
> Sorry for not understanding your point quickly, but what's the difference of
> 'general compatibility' and 'basic compatibility'? Because in my mind, one
> struct or function should either be ABI-compatible or not. Could you help explain
> it a bit?

I wonder whether we could have a guarantee for a subset of structs and functions.
Anyway, this is just opening the discussion to collect some inputs first.
Then we'll have to check what is possible and get a techboard approval.



  reply	other threads:[~2021-10-14  8:26 UTC|newest]

Thread overview: 59+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-10  2:23 [dpdk-dev] [PATCH 0/8] " Chenbo Xia
2021-09-10  2:23 ` [dpdk-dev] [PATCH 1/8] bus/pci: add new memory resource access APIs Chenbo Xia
2021-09-13 11:59   ` Kinsella, Ray
2021-09-10  2:23 ` [dpdk-dev] [PATCH 2/8] app/testpmd: use PCI " Chenbo Xia
2021-09-16  6:10   ` Li, Xiaoyun
2021-09-16  6:38     ` Xia, Chenbo
2021-09-10  2:23 ` [dpdk-dev] [PATCH 3/8] examples/ethtool: use PCI library API to get PCI address Chenbo Xia
2021-09-10  2:23 ` [dpdk-dev] [PATCH 4/8] examples/kni: remove unused PCI bus header Chenbo Xia
2021-09-17 15:38   ` Ferruh Yigit
2021-09-10  2:23 ` [dpdk-dev] [PATCH 5/8] test/kni: remove setting of PCI ID and address Chenbo Xia
2021-09-10  7:12   ` David Marchand
2021-09-17 15:38   ` Ferruh Yigit
2021-09-10  2:24 ` [dpdk-dev] [PATCH 6/8] examples/ip_pipeline: " Chenbo Xia
2021-09-10  7:18   ` David Marchand
2021-09-10  8:21     ` Xia, Chenbo
2021-09-17  3:09     ` Xia, Chenbo
2021-09-17 11:55       ` David Marchand
2021-09-17 15:37         ` Ferruh Yigit
2021-09-10  2:24 ` [dpdk-dev] [PATCH 7/8] kni: replace unused variable definition with reserved bytes Chenbo Xia
2021-09-10  2:24 ` [dpdk-dev] [PATCH 8/8] bus/pci: remove ABIs in PCI bus Chenbo Xia
2021-09-13 12:06   ` Kinsella, Ray
2021-09-14  8:15   ` Xu, Rosen
2021-09-18  2:24 ` [dpdk-dev] [PATCH v2 0/7] Removal of PCI bus ABIs Chenbo Xia
2021-09-18  2:24   ` [dpdk-dev] [PATCH v2 1/7] bus/pci: add new memory resource access APIs Chenbo Xia
2021-09-18  2:24   ` [dpdk-dev] [PATCH v2 2/7] app/testpmd: use PCI " Chenbo Xia
2021-09-18  2:44     ` Li, Xiaoyun
2021-09-18  2:24   ` [dpdk-dev] [PATCH v2 3/7] examples/ethtool: use PCI library API to get PCI address Chenbo Xia
2021-09-18  2:24   ` [dpdk-dev] [PATCH v2 4/7] examples/kni: remove unused PCI bus header Chenbo Xia
2021-09-18  2:24   ` [dpdk-dev] [PATCH v2 5/7] kni: remove unused PCI info from test and example Chenbo Xia
2021-09-18  2:24   ` [dpdk-dev] [PATCH v2 6/7] kni: replace unused variable definition with reserved bytes Chenbo Xia
2021-09-18  2:24   ` [dpdk-dev] [PATCH v2 7/7] bus/pci: remove ABIs in PCI bus Chenbo Xia
2021-09-29  7:38   ` [dpdk-dev] [PATCH v2 0/7] Removal of PCI bus ABIs Xia, Chenbo
2021-09-30  8:45     ` David Marchand
2021-10-04 13:37       ` David Marchand
2021-10-04 15:56         ` Harris, James R
2021-10-06  4:25           ` Xia, Chenbo
2021-10-08  6:15             ` Liu, Changpeng
2021-10-08  7:08               ` David Marchand
2021-10-08  7:44                 ` Liu, Changpeng
2021-10-11  6:58                   ` Xia, Chenbo
2021-10-11 12:55                     ` Thomas Monjalon
2021-10-12  0:35                       ` Harris, James R
2021-10-12  7:04                         ` Thomas Monjalon
2021-10-12 16:59                           ` Walker, Benjamin
2021-10-12 18:43                             ` Thomas Monjalon
2021-10-12 19:26                               ` Walker, Benjamin
2021-10-12 21:50                                 ` Thomas Monjalon
2021-10-13 17:56                                   ` Walker, Benjamin
2021-10-13 18:59                                     ` Thomas Monjalon
2021-10-13 22:48                                       ` Walker, Benjamin
2021-10-14  6:41                                         ` Thomas Monjalon
2022-07-11 12:11                                           ` Thomas Monjalon
2021-10-14  2:21                                       ` Xia, Chenbo
2021-10-14  6:41                                         ` Thomas Monjalon
2021-10-14  7:00                                           ` Xia, Chenbo
2021-10-14  7:07                                             ` Thomas Monjalon
2021-10-14  8:07                                               ` Xia, Chenbo
2021-10-14  8:25                                                 ` Thomas Monjalon [this message]
2021-10-27 12:03                                                   ` Xia, Chenbo

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