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From: "Gaëtan Rivet" <gaetan.rivet@6wind.com>
To: Thomas Monjalon <thomas@monjalon.net>
Cc: dev@dpdk.org, Jan Blunck <jblunck@infradead.org>
Subject: Re: [dpdk-dev] [PATCH v4 2/9] bus: add device iterator
Date: Wed, 21 Jun 2017 14:15:56 +0200	[thread overview]
Message-ID: <20170621121555.GF2344@bidouze.vm.6wind.com> (raw)
In-Reply-To: <3755201.Yc0g0bYsoq@xps>

On Wed, Jun 21, 2017 at 01:55:39PM +0200, Thomas Monjalon wrote:
> 21/06/2017 01:29, Gaetan Rivet:
> > +/**
> > + * Device comparison function.
> > + *
> > + * @param dev
> > + *   Device handle.
> > + *
> > + * @param data
> > + *   Data to compare against.
> > + *
> > + * @return
> > + *   0 if the device matches the data.
> > + *   !0 if the device does not match.
> > + *   <0 if ordering is possible and the device is lower than the data.
> > + *   >0 if ordering is possible and the device is greater than the data.
> > + */
> > +typedef int (*rte_dev_cmp_t)(const struct rte_device *dev, const void *data);
> 
> data is really abstract.
> Maybe a comment is missing to explain that data is better specified
> in bus implementations?
> 

I'm not sure it is better specified in rte_bus though :).
However, the usage can be understood there, why it exists in the first
place.

I think bus iterators could benefit some more explanation about the why.

> Why not implement it for PCI?
> 

I sent this series with only the patches from Jan, initially in the
version he solely developed. Only afterward did I fix a few bugs,
reworked a few APIs.

As such, two other series complete this patchset:

[dpdk-dev] [PATCH v3] pci: implement find_device bus operation
http://dpdk.org/ml/archives/dev/2017-June/067485.html

And

[dpdk-dev] [PATCH v3 0/3] eal: complete attach / detach support
http://dpdk.org/ml/archives/dev/2017-June/067516.html

It might make sense to merge all three series together.
They are conceptually linked very closely. The only reason I did not do
so at first was because I was unsure about who would take responsibility
for the attach / detach patchset, and if it had not be me I did not want to
put undue responsibility of my patches on whomever would.

But that point is moot now.

-- 
Gaëtan Rivet
6WIND

  reply	other threads:[~2017-06-21 12:16 UTC|newest]

Thread overview: 61+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-05-24 15:04 [dpdk-dev] [PATCH 0/9] bus: attach / detach API Gaetan Rivet
2017-05-24 15:04 ` [dpdk-dev] [PATCH 1/9] bus: add bus iterator to find a particular bus Gaetan Rivet
2017-05-24 15:04 ` [dpdk-dev] [PATCH 2/9] bus: add device iterator Gaetan Rivet
2017-05-24 15:04 ` [dpdk-dev] [PATCH 3/9] bus: add helper to find bus for a particular device Gaetan Rivet
2017-05-24 15:04 ` [dpdk-dev] [PATCH 4/9] bus: add bus helper iterator to find " Gaetan Rivet
2017-05-24 15:04 ` [dpdk-dev] [PATCH 5/9] bus: introduce attach/detach functionality Gaetan Rivet
2017-05-24 15:04 ` [dpdk-dev] [PATCH 6/9] vdev: implement find_device bus operation Gaetan Rivet
2017-05-24 15:04 ` [dpdk-dev] [PATCH 7/9] vdev: implement detach " Gaetan Rivet
2017-05-24 15:05 ` [dpdk-dev] [PATCH 8/9] eal: make virtual driver probe and remove take rte_vdev_device Gaetan Rivet
2017-05-24 15:05 ` [dpdk-dev] [PATCH 9/9] ethdev: Use embedded rte_device to detach driver Gaetan Rivet
2017-05-31 13:17 ` [dpdk-dev] [PATCH v2 00/11] bus: attach / detach API Gaetan Rivet
2017-05-31 13:17   ` [dpdk-dev] [PATCH v2 01/11] bus: add bus iterator to find a particular bus Gaetan Rivet
2017-06-07  7:06     ` Shreyansh Jain
2017-06-07 13:27       ` Gaëtan Rivet
2017-06-07 16:55         ` Jan Blunck
2017-06-08  4:34         ` Shreyansh Jain
2017-06-08  8:05           ` Gaëtan Rivet
2017-05-31 13:17   ` [dpdk-dev] [PATCH v2 02/11] bus: add device iterator Gaetan Rivet
2017-05-31 13:17   ` [dpdk-dev] [PATCH v2 03/11] bus: add helper to find bus for a particular device Gaetan Rivet
2017-05-31 13:17   ` [dpdk-dev] [PATCH v2 04/11] bus: add bus helper iterator to find " Gaetan Rivet
2017-06-07 16:41     ` Jan Blunck
2017-06-07 20:12       ` Gaëtan Rivet
2017-05-31 13:17   ` [dpdk-dev] [PATCH v2 05/11] bus: introduce hotplug functionality Gaetan Rivet
2017-05-31 13:17   ` [dpdk-dev] [PATCH v2 06/11] vdev: implement find_device bus operation Gaetan Rivet
2017-05-31 13:17   ` [dpdk-dev] [PATCH v2 07/11] vdev: implement hotplug functionality Gaetan Rivet
2017-05-31 13:17   ` [dpdk-dev] [PATCH v2 08/11] vdev: implement unplug bus operation Gaetan Rivet
2017-05-31 13:17   ` [dpdk-dev] [PATCH v2 09/11] eal: make virtual driver probe and remove take rte_vdev_device Gaetan Rivet
2017-05-31 13:17   ` [dpdk-dev] [PATCH v2 10/11] ethdev: Use embedded rte_device to detach driver Gaetan Rivet
2017-05-31 13:17   ` [dpdk-dev] [PATCH v2 11/11] net/ring: fix dev handle in eth_dev Gaetan Rivet
2017-05-31 15:34   ` [dpdk-dev] [PATCH v2 00/11] bus: attach / detach API Stephen Hemminger
2017-06-26  0:27     ` Gaëtan Rivet
2017-06-07 23:53   ` [dpdk-dev] [PATCH v3 00/10] " Gaetan Rivet
2017-06-07 23:53     ` [dpdk-dev] [PATCH v3 01/10] bus: add bus iterator to find a particular bus Gaetan Rivet
2017-06-10  8:58       ` Jan Blunck
2017-06-11 19:59         ` Gaëtan Rivet
2017-06-07 23:53     ` [dpdk-dev] [PATCH v3 02/10] bus: add device iterator Gaetan Rivet
2017-06-07 23:53     ` [dpdk-dev] [PATCH v3 03/10] bus: add helper to find bus for a particular device Gaetan Rivet
2017-06-07 23:53     ` [dpdk-dev] [PATCH v3 04/10] bus: add bus helper iterator to find " Gaetan Rivet
2017-06-07 23:53     ` [dpdk-dev] [PATCH v3 05/10] bus: introduce hotplug functionality Gaetan Rivet
2017-06-07 23:53     ` [dpdk-dev] [PATCH v3 06/10] vdev: implement find_device bus operation Gaetan Rivet
2017-06-07 23:53     ` [dpdk-dev] [PATCH v3 07/10] vdev: implement hotplug functionality Gaetan Rivet
2017-06-07 23:53     ` [dpdk-dev] [PATCH v3 08/10] eal: make virtual driver probe and remove take rte_vdev_device Gaetan Rivet
2017-06-07 23:53     ` [dpdk-dev] [PATCH v3 09/10] ethdev: use embedded rte_device to detach driver Gaetan Rivet
2017-06-07 23:53     ` [dpdk-dev] [PATCH v3 10/10] net/ring: fix dev handle in eth_dev Gaetan Rivet
2017-06-20 23:29     ` [dpdk-dev] [PATCH v4 0/9] bus: attach / detach API Gaetan Rivet
2017-06-20 23:29       ` [dpdk-dev] [PATCH v4 1/9] bus: add bus iterator to find a particular bus Gaetan Rivet
2017-06-21 12:12         ` Thomas Monjalon
2017-06-20 23:29       ` [dpdk-dev] [PATCH v4 2/9] bus: add device iterator Gaetan Rivet
2017-06-21 11:55         ` Thomas Monjalon
2017-06-21 12:15           ` Gaëtan Rivet [this message]
2017-06-20 23:29       ` [dpdk-dev] [PATCH v4 3/9] bus: add helper to find bus for a particular device Gaetan Rivet
2017-06-21 12:11         ` Thomas Monjalon
2017-06-20 23:29       ` [dpdk-dev] [PATCH v4 4/9] bus: add bus helper iterator to find " Gaetan Rivet
2017-06-21 12:21         ` Thomas Monjalon
2017-06-20 23:29       ` [dpdk-dev] [PATCH v4 5/9] bus: introduce hotplug functionality Gaetan Rivet
2017-06-20 23:29       ` [dpdk-dev] [PATCH v4 6/9] vdev: implement find_device bus operation Gaetan Rivet
2017-06-20 23:29       ` [dpdk-dev] [PATCH v4 7/9] vdev: implement hotplug functionality Gaetan Rivet
2017-06-20 23:29       ` [dpdk-dev] [PATCH v4 8/9] eal: make virtual driver probe and remove take rte_vdev_device Gaetan Rivet
2017-06-20 23:29       ` [dpdk-dev] [PATCH v4 9/9] ethdev: use embedded rte_device to detach driver Gaetan Rivet
2017-06-21 14:33         ` Thomas Monjalon
2017-06-21 14:35         ` Thomas Monjalon

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