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From: David Marchand <david.marchand@6wind.com>
To: Shreyansh Jain <shreyansh.jain@nxp.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
	Thomas Monjalon <thomas.monjalon@6wind.com>
Subject: Re: [dpdk-dev] [PATCH 00/13] Introducing EAL Bus-Device-Driver Model
Date: Tue, 6 Dec 2016 21:52:08 +0100	[thread overview]
Message-ID: <CALwxeUtqnNpm=KuR3Qtb2PNUghAc=e9TKQqm4Uh8pvgZ4EmriA@mail.gmail.com> (raw)
In-Reply-To: <1480846288-2517-1-git-send-email-shreyansh.jain@nxp.com>

"Big patchset and a lot of things to look at.

Here is a first look at it.

On Sun, Dec 4, 2016 at 11:11 AM, Shreyansh Jain <shreyansh.jain@nxp.com> wrote:
> In continuation to the RFC posted on 17/Nov [9],
> A series of patches is being posted which attempts to create:
>  1. A basic bus model
>     `- define rte_bus and associated methods/helpers
>     `- test infrastructure to test the Bus infra
>  2. Changes in EAL to support PCI as a bus
>     `- a "pci" bus is registered
>     `- existing scan/match/probe are modified to allow for bus integration
>     `- PCI Device and Driver list, which were global entities, have been
>        moved to rte_bus->[device/driver]_list
>
> I have sanity tested this patch over a XeonD X552 available with me, as
> well as part of PoC for verifying NXP's DPAA2 PMD (being pushed out in a
> separate series). Exhaustive testing is still pending.

I saw some checkpatch issues for patch 1 (I would ignore this one) and
4 (please check).


> :: Brief about Patch Layout ::
>
> 0001:      Container_of patch from [3]

> 0002~0003: Introducing the basic Bus model and associated test case
> 0005:      Support insertion of device rather than addition to tail

Patch 2 and 5 could be squashed.
The constructor priority stuff seems unneeded as long as we use
explicit reference to a global (or local, did not check) bus symbol
rather than a runtime lookup.


> 0004:      Add scan and match callbacks for the Bus and updated test case

Why do you push back the bus object in the 'scan' method ?
This method is bus specific which means that the code "knows" the
object registered with the callback.
Is is that you want to have a single scan method used by multiple buses ?


> 0006:      Integrate bus scan/match with EAL, without any effective driver

Hard to find a right balance in patch splittng, but patch 4 and 6 are
linked, I would squash them into one.


> 0007:      rte_pci_driver->probe replaced with rte_driver->probe

This patch is too big, please separate in two patches: eal changes
then ethdev/driver changes.
I almost missed that mlx4 has been broken : you moved the drv_flags
from the mlx4 pci driver to rte_driver.

Why do you push back the driver object in the 'probe' method ? (idem
rte_bus->scan).


> 0008:      Integrate probe of drivers with EAL

This patch does nothing about "remove" while its title talks about it.

+ What about hotplug code ? I suppose this is for later.


> 0009:      Split the existing PCI probe into match and probe

You don't need to expose rte_eal_pci_match_default() (and I am not
sure what the "default" means here).
This method should be internal to the pci bus object ?


> 0010:      Make PCI probe/match work on rte_driver/device rather than
>            rte_pci_device/rte_pci_driver
> 0011:      Patch from Ben [8], part of series [2]


> 0012~0013: Enable Scan/Match/probe on Bus from EAL and remove unused
>            functions and lists

Same thing as earlier in the series, you don't need to check for the bus object.
The pci bus code can't be called if the bus was not registered and
consequently, you are sure that the pci bus object is the pci_bus
symbol.



Regards,
-- 
David Marchand

  parent reply	other threads:[~2016-12-06 20:52 UTC|newest]

Thread overview: 132+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-04 10:11 Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 01/13] eal: define container_of macro Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 02/13] eal/bus: introduce bus abstraction Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 03/13] test: add basic bus infrastructure tests Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 04/13] eal/bus: add scan and match support Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 05/13] eal/bus: add support for inserting a device on a bus Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 06/13] eal: integrate bus scan and probe with EAL Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 07/13] pci: replace probe and remove handlers with rte_driver Shreyansh Jain
2016-12-08 17:50   ` Ferruh Yigit
2016-12-09  4:59     ` Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 08/13] eal: enable probe and remove from bus infrastructure Shreyansh Jain
2016-12-06 10:45   ` Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 09/13] pci: split match and probe function Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 10/13] eal/pci: generalize args of PCI scan/match towards RTE device/driver Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 11/13] pci: Pass rte_pci_addr to functions instead of separate args Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 12/13] eal: enable PCI bus Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 13/13] eal/pci: remove PCI probe and init calls Shreyansh Jain
2016-12-06 20:52 ` David Marchand [this message]
2016-12-07  9:55   ` [dpdk-dev] [PATCH 00/13] Introducing EAL Bus-Device-Driver Model Shreyansh Jain
2016-12-07 12:17     ` David Marchand
2016-12-07 13:10       ` Shreyansh Jain
2016-12-07 13:24         ` Thomas Monjalon
2016-12-08  5:04           ` Shreyansh Jain
2016-12-08  7:21             ` Thomas Monjalon
2016-12-08  7:53               ` Shreyansh Jain
2016-12-12 14:35         ` Jianbo Liu
2016-12-13  6:56           ` Shreyansh Jain
2016-12-13 13:37 ` [dpdk-dev] [PATCH v2 00/12] " Shreyansh Jain
2016-12-13 13:37   ` [dpdk-dev] [PATCH v2 01/12] eal: define container_of macro Shreyansh Jain
2016-12-13 22:24     ` Jan Blunck
2016-12-14  5:12       ` Shreyansh Jain
2016-12-16  8:14         ` Jan Blunck
2016-12-16  9:23           ` Adrien Mazarguil
2016-12-16 10:47             ` Jan Blunck
2016-12-16 11:21               ` Adrien Mazarguil
2016-12-16 11:54                 ` Shreyansh Jain
2016-12-13 13:37   ` [dpdk-dev] [PATCH v2 02/12] eal/bus: introduce bus abstraction Shreyansh Jain
2016-12-13 13:37   ` [dpdk-dev] [PATCH v2 03/12] test: add basic bus infrastructure tests Shreyansh Jain
2016-12-13 13:37   ` [dpdk-dev] [PATCH v2 04/12] eal/bus: add scan, match and insert support Shreyansh Jain
2016-12-13 13:37   ` [dpdk-dev] [PATCH v2 05/12] eal: integrate bus scan and probe with EAL Shreyansh Jain
2016-12-13 13:37   ` [dpdk-dev] [PATCH v2 06/12] eal: add probe and remove support for rte_driver Shreyansh Jain
2016-12-13 13:37   ` [dpdk-dev] [PATCH v2 07/12] eal: enable probe from bus infrastructure Shreyansh Jain
2016-12-13 13:37   ` [dpdk-dev] [PATCH v2 08/12] pci: split match and probe function Shreyansh Jain
2016-12-13 13:37   ` [dpdk-dev] [PATCH v2 09/12] eal/pci: generalize args of PCI scan/match towards RTE device/driver Shreyansh Jain
2016-12-13 13:37   ` [dpdk-dev] [PATCH v2 10/12] pci: Pass rte_pci_addr to functions instead of separate args Shreyansh Jain
2016-12-13 13:37   ` [dpdk-dev] [PATCH v2 11/12] eal: enable PCI bus Shreyansh Jain
2016-12-13 13:37   ` [dpdk-dev] [PATCH v2 12/12] drivers: update PMDs to use rte_driver probe and remove Shreyansh Jain
2016-12-13 13:52     ` Andrew Rybchenko
2016-12-13 15:07       ` Ferruh Yigit
2016-12-14  5:14         ` Shreyansh Jain
2016-12-14  5:11       ` Shreyansh Jain
2016-12-14  9:49     ` Shreyansh Jain
2016-12-15 21:36       ` Jan Blunck
2016-12-26  9:14         ` Shreyansh Jain
2016-12-16 13:10   ` [dpdk-dev] [PATCH v3 00/12] Introducing EAL Bus-Device-Driver Model Shreyansh Jain
2016-12-16 13:10     ` [dpdk-dev] [PATCH v3 01/12] eal: define container_of macro Shreyansh Jain
2016-12-16 13:10     ` [dpdk-dev] [PATCH v3 02/12] eal/bus: introduce bus abstraction Shreyansh Jain
2016-12-20 12:37       ` Hemant Agrawal
2016-12-20 13:17       ` Jan Blunck
2016-12-20 13:51         ` Shreyansh Jain
2016-12-20 17:11         ` Stephen Hemminger
2016-12-21  7:11           ` Shreyansh Jain
2016-12-21 15:38           ` Jan Blunck
2016-12-21 23:33             ` Stephen Hemminger
2016-12-22  5:12               ` Shreyansh Jain
2016-12-22  5:52                 ` Shreyansh Jain
2016-12-25 17:39         ` Shreyansh Jain
2016-12-16 13:10     ` [dpdk-dev] [PATCH v3 03/12] test: add basic bus infrastructure tests Shreyansh Jain
2016-12-16 13:10     ` [dpdk-dev] [PATCH v3 04/12] eal/bus: add scan, match and insert support Shreyansh Jain
2016-12-16 13:25       ` Shreyansh Jain
2016-12-16 13:10     ` [dpdk-dev] [PATCH v3 05/12] eal: integrate bus scan and probe with EAL Shreyansh Jain
2016-12-16 13:10     ` [dpdk-dev] [PATCH v3 06/12] eal: add probe and remove support for rte_driver Shreyansh Jain
2016-12-16 13:10     ` [dpdk-dev] [PATCH v3 07/12] eal: enable probe from bus infrastructure Shreyansh Jain
2016-12-16 13:10     ` [dpdk-dev] [PATCH v3 08/12] pci: split match and probe function Shreyansh Jain
2016-12-16 13:10     ` [dpdk-dev] [PATCH v3 09/12] eal/pci: generalize args of PCI scan/match towards RTE device/driver Shreyansh Jain
2016-12-16 13:10     ` [dpdk-dev] [PATCH v3 10/12] pci: Pass rte_pci_addr to functions instead of separate args Shreyansh Jain
2016-12-16 13:10     ` [dpdk-dev] [PATCH v3 11/12] eal: enable PCI bus and PCI test framework Shreyansh Jain
2016-12-16 13:20       ` Shreyansh Jain
2016-12-16 13:10     ` [dpdk-dev] [PATCH v3 12/12] drivers: update PMDs to use rte_driver probe and remove Shreyansh Jain
2016-12-26 12:50     ` [dpdk-dev] [PATCH v4 00/12] Introducing EAL Bus-Device-Driver Model Shreyansh Jain
2016-12-26 12:50       ` [dpdk-dev] [PATCH v4 01/12] eal/bus: introduce bus abstraction Shreyansh Jain
2016-12-26 12:50       ` [dpdk-dev] [PATCH v4 02/12] test: add basic bus infrastructure tests Shreyansh Jain
2016-12-26 12:50       ` [dpdk-dev] [PATCH v4 03/12] eal/bus: add scan, match and insert support Shreyansh Jain
2016-12-26 13:27         ` Shreyansh Jain
2016-12-26 12:50       ` [dpdk-dev] [PATCH v4 04/12] eal: integrate bus scan and probe with EAL Shreyansh Jain
2016-12-26 12:50       ` [dpdk-dev] [PATCH v4 05/12] eal: add probe and remove support for rte_driver Shreyansh Jain
2016-12-26 12:50       ` [dpdk-dev] [PATCH v4 06/12] eal: enable probe from bus infrastructure Shreyansh Jain
2016-12-26 12:50       ` [dpdk-dev] [PATCH v4 07/12] pci: split match and probe function Shreyansh Jain
2016-12-26 12:50       ` [dpdk-dev] [PATCH v4 08/12] eal/pci: generalize args of PCI scan/match towards RTE device/driver Shreyansh Jain
2016-12-26 12:50       ` [dpdk-dev] [PATCH v4 09/12] pci: Pass rte_pci_addr to functions instead of separate args Shreyansh Jain
2016-12-26 12:50       ` [dpdk-dev] [PATCH v4 10/12] eal: enable PCI bus and PCI test framework Shreyansh Jain
2016-12-26 12:50       ` [dpdk-dev] [PATCH v4 11/12] drivers: update PMDs to use rte_driver probe and remove Shreyansh Jain
2016-12-26 12:50       ` [dpdk-dev] [PATCH v4 12/12] eal/bus: add bus iteration macros Shreyansh Jain
2016-12-26 13:23       ` [dpdk-dev] [PATCH v5 00/12] Introducing EAL Bus-Device-Driver Model Shreyansh Jain
2016-12-26 13:23         ` [dpdk-dev] [PATCH v5 01/12] eal/bus: introduce bus abstraction Shreyansh Jain
2017-01-03 21:52           ` Thomas Monjalon
2017-01-06 10:31             ` Shreyansh Jain
2017-01-06 14:55               ` Thomas Monjalon
2017-01-09  6:24                 ` Shreyansh Jain
2017-01-09 15:22           ` Ferruh Yigit
2017-01-10  4:07             ` Shreyansh Jain
2016-12-26 13:23         ` [dpdk-dev] [PATCH v5 02/12] test: add basic bus infrastructure tests Shreyansh Jain
2016-12-26 13:23         ` [dpdk-dev] [PATCH v5 03/12] eal/bus: add scan, match and insert support Shreyansh Jain
2016-12-26 13:23         ` [dpdk-dev] [PATCH v5 04/12] eal: integrate bus scan and probe with EAL Shreyansh Jain
2017-01-03 21:46           ` Thomas Monjalon
2017-01-06 10:38             ` Shreyansh Jain
2017-01-06 12:00               ` Shreyansh Jain
2017-01-06 13:46                 ` Thomas Monjalon
2017-01-09  6:35                   ` Shreyansh Jain
2017-01-08 12:21           ` Rosen, Rami
2017-01-09  6:34             ` Shreyansh Jain
2016-12-26 13:23         ` [dpdk-dev] [PATCH v5 05/12] eal: add probe and remove support for rte_driver Shreyansh Jain
2017-01-03 22:05           ` Thomas Monjalon
2017-01-06 11:44             ` Shreyansh Jain
2017-01-06 15:26               ` Thomas Monjalon
2017-01-09  6:28                 ` Shreyansh Jain
2016-12-26 13:23         ` [dpdk-dev] [PATCH v5 06/12] eal: enable probe from bus infrastructure Shreyansh Jain
2016-12-26 13:24         ` [dpdk-dev] [PATCH v5 07/12] pci: split match and probe function Shreyansh Jain
2017-01-03 22:08           ` Thomas Monjalon
2016-12-26 13:24         ` [dpdk-dev] [PATCH v5 08/12] eal/pci: generalize args of PCI scan/match towards RTE device/driver Shreyansh Jain
2017-01-03 22:13           ` Thomas Monjalon
2017-01-06 12:03             ` Shreyansh Jain
2016-12-26 13:24         ` [dpdk-dev] [PATCH v5 09/12] pci: Pass rte_pci_addr to functions instead of separate args Shreyansh Jain
2016-12-26 13:24         ` [dpdk-dev] [PATCH v5 10/12] eal: enable PCI bus and PCI test framework Shreyansh Jain
2016-12-26 13:24         ` [dpdk-dev] [PATCH v5 11/12] drivers: update PMDs to use rte_driver probe and remove Shreyansh Jain
2017-01-09 15:19           ` Ferruh Yigit
2017-01-09 16:18             ` Ferruh Yigit
2017-01-10  4:09               ` Shreyansh Jain
2016-12-26 13:24         ` [dpdk-dev] [PATCH v5 12/12] eal/bus: add bus iteration macros Shreyansh Jain
2017-01-03 22:15           ` Thomas Monjalon
2017-01-03 22:22         ` [dpdk-dev] [PATCH v5 00/12] Introducing EAL Bus-Device-Driver Model Thomas Monjalon
2017-01-06  6:27           ` Shreyansh Jain

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