From: David Marchand <david.marchand@6wind.com>
To: Neil Horman <nhorman@tuxdriver.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
Thomas Monjalon <thomas.monjalon@6wind.com>,
Stephen Hemminger <stephen@networkplumber.org>,
"Richardson, Bruce" <bruce.richardson@intel.com>,
Panu Matilainen <pmatilai@redhat.com>,
Christian Ehrhardt <christian.ehrhardt@canonical.com>,
Wenzhuo Lu <wenzhuo.lu@intel.com>,
"Zhang, Helin" <helin.zhang@intel.com>
Subject: Re: [dpdk-dev] [PATCH v3 01/13] e1000: move pci device ids to driver
Date: Thu, 21 Apr 2016 09:27:18 +0200 [thread overview]
Message-ID: <CALwxeUtkRMer-TsO2sqcZ8sJ0=NN6jK3ewNCbsZv=a2Ru+pjZg@mail.gmail.com> (raw)
In-Reply-To: <20160420181511.GB21072@hmsreliant.think-freely.org>
On Wed, Apr 20, 2016 at 8:15 PM, Neil Horman <nhorman@tuxdriver.com> wrote:
> On Wed, Apr 20, 2016 at 03:39:59PM +0200, David Marchand wrote:
>> On Wed, Apr 20, 2016 at 3:29 PM, Neil Horman <nhorman@tuxdriver.com> wrote:
>> >> +#ifndef RTE_PCI_DEV_ID_DECL_EM
>> >> +#define RTE_PCI_DEV_ID_DECL_EM(vend, dev)
>> >> +#endif
>> >> +
>> >> +#ifndef PCI_VENDOR_ID_INTEL
>> >> +/** Vendor ID used by Intel devices */
>> >> +#define PCI_VENDOR_ID_INTEL 0x8086
>> >> +#endif
>> >> +
>> > This is broken, PCI_VENDOR_ID_INTEL should be defined in a central location for
>> > all pci drivers, not redefined in every compilation unit. And you can likely
>>
>> Well we can keep the vendors in a common header, but I don't see the benefit.
>>
> ?
> The fact that you won't have to do this
> #ifndef PCI_VENDOR_ID_INTEL
> #define PCI_VENDOR_ID_INTEL ...
> #endif
> in every pmd
Ok, so you would keep the rte_pci_dev_ids.h with just the vendors in it ?
Or, we could rely on linux kernel headers (pci_ids.h), rather than
maintain a header in dpdk.
But this would add a dependency build on dpdk and I am not sure there
is something equivalent on freebsd (afaics all drivers seem to
duplicate the pci vendor id).
Any freebsd gourou reading this ?
>> > just remvoe the RTE_PCI_DEV_ID_DECL_* macros from each patch and use the
>> > RTE_PCI_DEV macro, as all the DECL macros just evaluate to that anyway.
>>
>> app/test/test_pci.c:#define RTE_PCI_DEV_ID_DECL_IGB(vend, dev)
>> {RTE_PCI_DEVICE(vend, dev)},
>> lib/librte_eal/linuxapp/kni/kni_misc.c: #define
>> RTE_PCI_DEV_ID_DECL_IGB(vend, dev) case (dev):
>>
>> All this stuff is because of pci tests and kni code.
>>
> You're going to have to explain a bit further than that. Why does the kni code
> and pci testing code require that each driver have their own macro that just
> maps to the same macro underneath? Looking at the test_pci code, it appears its
> done because we used to contain all our pci device ids in a single file, and the
> device specific macros were used to selectively enable devices that were there
> for testing. But the point of this series is in part to separate out the device
> ids to their own locations, so it seems like you will have to fix up the pci
> tests anyway (and additionally it would be nice to include more than just EM,
> IGB, and IXGBE in thsoe tests anyway, though I understand thats outside the
> scope of this series)
- test_pci.c should be about testing pci infrastructure.
Relying on igb / ixgbe (or whatever pci device if we extend the list
to all pci ids) being present on the system to run successfully is
flawed but I have no better idea.
- kni implements specific ethtool stuff based on pci ids.
kni contains duplicated code from the kernel and it uses those ids to
drive to the right ops.
The solutions I have imagined so far :
* use a shared header for the devices that it supports
* drop the use of pci ids between kni library and kni kernel driver,
instead use the pmd name that would be resolved internally by the kni
library at RTE_KNI_IOCTL_CREATE time, and use this in the kni kernel
driver
* drop kni :-)
I don't mind doing trivial changes, but I don't have time for more on
this series.
--
David Marchand
next prev parent reply other threads:[~2016-04-21 7:27 UTC|newest]
Thread overview: 92+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-05 19:37 [dpdk-dev] time to kill rte_pci_dev_ids.h Stephen Hemminger
2016-01-06 1:40 ` Thomas Monjalon
2016-01-08 13:20 ` David Marchand
2016-01-10 12:50 ` [dpdk-dev] [PATCH 00/11] kill global pci device id list David Marchand
2016-01-10 12:50 ` [dpdk-dev] [PATCH 01/11] e1000: move pci device ids to driver David Marchand
2016-01-10 12:50 ` [dpdk-dev] [PATCH 02/11] ixgbe: " David Marchand
2016-01-10 12:50 ` [dpdk-dev] [PATCH 03/11] i40e: " David Marchand
2016-01-10 20:02 ` Stephen Hemminger
2016-01-12 8:45 ` David Marchand
2016-01-10 12:50 ` [dpdk-dev] [PATCH 04/11] fm10k: " David Marchand
2016-01-10 12:50 ` [dpdk-dev] [PATCH 05/11] virtio: " David Marchand
2016-01-10 12:50 ` [dpdk-dev] [PATCH 06/11] vmxnet3: " David Marchand
2016-01-10 12:50 ` [dpdk-dev] [PATCH 07/11] enic: " David Marchand
2016-01-10 12:50 ` [dpdk-dev] [PATCH 08/11] bnx2x: " David Marchand
2016-01-10 12:50 ` [dpdk-dev] [PATCH 09/11] doc: refresh headers list David Marchand
2016-01-12 14:06 ` Mcnamara, John
2016-01-16 15:10 ` David Marchand
2016-01-18 9:47 ` Thomas Monjalon
2016-01-18 16:25 ` Mcnamara, John
2016-01-10 12:50 ` [dpdk-dev] [PATCH 10/11] pci: no need for global device ids list David Marchand
2016-01-10 12:50 ` [dpdk-dev] [PATCH 11/11] pci: place all uio pci device ids in a dedicated section David Marchand
2016-01-10 12:58 ` [dpdk-dev] [PATCH 00/11] kill global pci device id list David Marchand
2016-01-10 13:24 ` Thomas Monjalon
2016-01-10 13:26 ` David Marchand
2016-01-10 13:27 ` David Marchand
2016-01-10 15:53 ` Zhang, Helin
2016-01-16 15:02 ` David Marchand
2016-01-21 1:12 ` Zhang, Helin
2016-01-18 12:30 ` [dpdk-dev] [PATCH v2 00/10] " David Marchand
2016-01-18 12:30 ` [dpdk-dev] [PATCH v2 01/10] e1000: move pci device ids to driver David Marchand
2016-01-18 12:30 ` [dpdk-dev] [PATCH v2 02/10] ixgbe: " David Marchand
2016-01-18 12:30 ` [dpdk-dev] [PATCH v2 03/10] i40e: " David Marchand
2016-01-18 12:30 ` [dpdk-dev] [PATCH v2 04/10] fm10k: " David Marchand
2016-01-18 12:30 ` [dpdk-dev] [PATCH v2 05/10] virtio: " David Marchand
2016-01-18 12:30 ` [dpdk-dev] [PATCH v2 06/10] vmxnet3: " David Marchand
2016-01-18 12:30 ` [dpdk-dev] [PATCH v2 07/10] enic: " David Marchand
2016-01-18 12:30 ` [dpdk-dev] [PATCH v2 08/10] bnx2x: " David Marchand
2016-01-18 12:30 ` [dpdk-dev] [PATCH v2 09/10] pci: no need for global device ids list David Marchand
2016-01-18 12:30 ` [dpdk-dev] [PATCH v2 10/10] pci: place all uio pci device ids in a dedicated section David Marchand
2016-01-19 7:30 ` Thomas Monjalon
2016-01-19 14:29 ` Neil Horman
2016-01-19 16:10 ` Stephen Hemminger
2016-01-19 20:56 ` Neil Horman
2016-01-19 21:35 ` Stephen Hemminger
2016-01-20 15:40 ` Neil Horman
2016-02-24 11:37 ` Bruce Richardson
2016-02-24 11:50 ` Thomas Monjalon
2016-02-24 14:18 ` Neil Horman
2016-04-20 12:43 ` [dpdk-dev] [PATCH v3 00/13] kill global pci device id list David Marchand
2016-04-20 12:43 ` [dpdk-dev] [PATCH v3 01/13] e1000: move pci device ids to driver David Marchand
2016-04-20 13:29 ` Neil Horman
2016-04-20 13:39 ` David Marchand
2016-04-20 18:15 ` Neil Horman
2016-04-21 7:27 ` David Marchand [this message]
2016-04-21 12:08 ` Neil Horman
2016-04-21 12:41 ` Thomas Monjalon
2016-04-22 12:13 ` Neil Horman
2016-04-22 13:22 ` Thomas Monjalon
2016-07-08 13:31 ` Thomas Monjalon
2016-07-11 5:33 ` Yuanhan Liu
2016-07-11 5:56 ` Thomas Monjalon
2016-07-11 6:05 ` Yuanhan Liu
2016-07-11 11:35 ` David Marchand
2016-07-11 12:05 ` Yuanhan Liu
2016-04-20 12:43 ` [dpdk-dev] [PATCH v3 02/13] ixgbe: " David Marchand
2016-04-29 1:34 ` Wu, Jingjing
2016-05-04 8:26 ` David Marchand
2016-04-20 12:43 ` [dpdk-dev] [PATCH v3 03/13] i40e: " David Marchand
2016-04-20 12:43 ` [dpdk-dev] [PATCH v3 04/13] fm10k: " David Marchand
2016-04-20 12:43 ` [dpdk-dev] [PATCH v3 05/13] virtio: " David Marchand
2016-04-20 12:43 ` [dpdk-dev] [PATCH v3 06/13] vmxnet3: " David Marchand
2016-04-20 12:43 ` [dpdk-dev] [PATCH v3 07/13] enic: " David Marchand
2016-04-20 12:43 ` [dpdk-dev] [PATCH v3 08/13] bnx2x: " David Marchand
2016-04-20 12:43 ` [dpdk-dev] [PATCH v3 09/13] ena: remove unneeded pci macro David Marchand
2016-04-20 12:43 ` [dpdk-dev] [PATCH v3 10/13] pci: no need for global device ids list David Marchand
2016-04-20 12:43 ` [dpdk-dev] [PATCH v3 11/13] drivers: constify pci id tables David Marchand
2016-04-20 12:43 ` [dpdk-dev] [PATCH v3 12/13] drivers: export pci drivers David Marchand
2016-04-20 12:43 ` [dpdk-dev] [PATCH v3 13/13] app: introduce dpdk-obj-info tool David Marchand
2016-04-21 8:07 ` [dpdk-dev] [PATCH v3 00/13] kill global pci device id list David Marchand
2016-04-21 12:13 ` Neil Horman
2016-07-11 14:40 ` [dpdk-dev] [PATCH v4 00/10] kill global pci device id list (almost) David Marchand
2016-07-11 14:40 ` [dpdk-dev] [PATCH v4 01/10] eal: remove PCI device ids header from doxygen David Marchand
2016-07-11 14:40 ` [dpdk-dev] [PATCH v4 02/10] net/e1000: move em PCI device ids to the driver David Marchand
2016-07-11 14:40 ` [dpdk-dev] [PATCH v4 03/10] net/i40e: move " David Marchand
2016-07-11 14:40 ` [dpdk-dev] [PATCH v4 04/10] net/fm10k: " David Marchand
2016-07-11 14:40 ` [dpdk-dev] [PATCH v4 05/10] net/virtio: " David Marchand
2016-07-11 14:40 ` [dpdk-dev] [PATCH v4 06/10] net/vmxnet3: " David Marchand
2016-07-11 14:40 ` [dpdk-dev] [PATCH v4 07/10] net/enic: " David Marchand
2016-07-11 14:40 ` [dpdk-dev] [PATCH v4 08/10] net/bnx2x: " David Marchand
2016-07-11 14:40 ` [dpdk-dev] [PATCH v4 09/10] net/bnxt: " David Marchand
2016-07-11 14:40 ` [dpdk-dev] [PATCH v4 10/10] net/ena: remove unneeded PCI macro David Marchand
2016-07-11 16:27 ` [dpdk-dev] [PATCH v4 00/10] kill global pci device id list (almost) Thomas Monjalon
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