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From: Ferruh Yigit <ferruh.yigit@intel.com>
To: Shreyansh Jain <shreyansh.jain@nxp.com>,
	Hemant Agrawal <hemant.agrawal@nxp.com>,
	"dev@dpdk.org" <dev@dpdk.org>
Cc: Pankaj Chauhan <pankaj.chauhan@nxp.com>,
	"M.h. Lian" <minghuan.lian@nxp.com>
Subject: Re: [dpdk-dev] [PATCH 20/20] bus/fslmc: add function to map any addr via VFIO
Date: Fri, 11 Jan 2019 11:58:55 +0000
Message-ID: <d70a8024-9a2e-326f-7682-3736f802dd25@intel.com> (raw)
In-Reply-To: <644680ea-c4f7-3295-feef-47475d870596@nxp.com>

On 1/10/2019 9:58 AM, Shreyansh Jain wrote:
> Hello Ferruh,
> 
> Replying on behalf of Hemant...
> 
> On 08/01/19 7:40 PM, Ferruh Yigit wrote:
>> On 12/27/2018 6:23 AM, Hemant Agrawal wrote:
>>> From: Pankaj Chauhan <pankaj.chauhan@nxp.com>
>>>
>>> This is required to map any accelerator memory
>>> and PCI address to VFIO using QDMA.
>>>
>>> Signed-off-by: Minghuan Lian <Minghuan.Lian@nxp.com>
>>> Signed-off-by: Pankaj Chauhan <pankaj.chauhan@nxp.com>
>>
>> This requires either sign-off or ack from 'bus/fslmc' maintainers, which are:
>> 	M: Hemant Agrawal <hemant.agrawal@nxp.com>
>>
>>
>>
>> 	M: Shreyansh Jain <shreyansh.jain@nxp.com>
>>
>> I think Hemant sending the patchset implies that this has been reviewed by him
>> but this information get lost in git, so better to explicitly provide review/ack
>> tags whenever appropriate.
> 
> What I will do is, re-spin the complete series (with error below 
> fixed...) and send again. All the patches are on FSLMC/DPAA2 drivers 
> only so probably Hemant's or my Acks would work directly.
> 
>>
>> <...>
>>
>>> +	printf("PCIe vfio map 0x%llx:0x%llx, size 0x%llx\n", dma_map.vaddr,
>>> +		dma_map.iova, dma_map.size);
>>
>> This is causing build error [1], but why at first place using 'printf()' instead
>> of logging macros?
> 
> I will fix this.
> 
>>
>> [1]
>> .../drivers/bus/fslmc/fslmc_vfio.c: In function ‘rte_fslmc_vfio_mem_dmamap’:
>> .../drivers/bus/fslmc/fslmc_vfio.c:376:29: error: format ‘%llx’ expects argument
>> of type ‘long long unsigned int’, but argument 2 has type ‘__u64’ {aka ‘long
>> unsigned int’} [-Werror=format=]
>>    printf("PCIe vfio map 0x%llx:0x%llx, size 0x%llx\n", dma_map.vaddr,
>>                            ~~~^                         ~~~~~~~~~~~~~
>>                            %lx
>>
>> <...>
>>
>>> +DPDK_19.02 {
>>> +	global:
>>> +
>>> +	rte_fslmc_vfio_mem_dmamap;
>>
>> Is this need to be an API? Who is the consumer of this API, I don't see anyone
>> calls this function?
>>
> 
> This API (internal to FSLMC) was added for one of NXP's internal 
> software stack over DPDK. As this is an internal API, I don't think it 
> would pollute the outer namespace - isn't it? And, I think its consumers 
> won't necessarily be within DPDK stack.
> 
> Or, if this is conflicting case, I will remove this patch (it is 
> independent) and send again. Let me know your reservation.

API consumers doesn't have to be in DPDK but than it is not an internal API.

And for API we recently decided to have an implementation for new APIs, it can
be unit test, sample application, or app like testpmd, so that we can detect
when it is broken.

Perhaps it can be good idea to separate patch, as you suggested, to not block
the rest of the patchset.

  reply	other threads:[~2019-01-11 11:58 UTC|newest]

Thread overview: 70+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-12-27  6:22 [dpdk-dev] [PATCH 00/20] NXP DPAA2 fixes and enhancements Hemant Agrawal
2018-12-27  6:22 ` [dpdk-dev] [PATCH 01/20] bus/fslmc: fix to reset portal memory before use Hemant Agrawal
2018-12-27  6:22 ` [dpdk-dev] [PATCH 02/20] bus/fslmc: fix the ring mode to use correct cache settings Hemant Agrawal
2018-12-27  6:22 ` [dpdk-dev] [PATCH 03/20] bus/fslmc: fix to use correct physical core for logical core Hemant Agrawal
2018-12-27  6:22 ` [dpdk-dev] [PATCH 04/20] net/dpaa2: fix bad check for not-null Hemant Agrawal
2018-12-27  6:22 ` [dpdk-dev] [PATCH 05/20] bus/fslmc: fix to convert error msg to warning Hemant Agrawal
2018-12-27  6:23 ` [dpdk-dev] [PATCH 06/20] bus/fslmc: fix parse method for bus devices Hemant Agrawal
2018-12-27  6:23 ` [dpdk-dev] [PATCH 07/20] net/dpaa2: fix device init for secondary process Hemant Agrawal
2018-12-27  6:23 ` [dpdk-dev] [PATCH 08/20] net/dpaa2: enable optional timestamp in mbuf Hemant Agrawal
2018-12-27  6:23 ` [dpdk-dev] [PATCH 09/20] bus/fslmc: upgrade to latest qbman library Hemant Agrawal
2018-12-27  6:23 ` [dpdk-dev] [PATCH 10/20] bus/fslmc: add dynamic config for memback portal mode Hemant Agrawal
2018-12-27  6:23 ` [dpdk-dev] [PATCH 11/20] bus/fslmc: rename portal pi index to consumer index Hemant Agrawal
2018-12-27  6:23 ` [dpdk-dev] [PATCH 12/20] bus/fslmc: make portal func static Hemant Agrawal
2018-12-27  6:23 ` [dpdk-dev] [PATCH 13/20] net/dpaa2: add dpdmux mc flib Hemant Agrawal
2018-12-27  6:23 ` [dpdk-dev] [PATCH 14/20] bus/fslmc: add support for scanning DPDMUX object Hemant Agrawal
2018-12-27  6:23 ` [dpdk-dev] [PATCH 15/20] net/dpaa2: add dpdmux initialization and configuration Hemant Agrawal
2018-12-27  6:23 ` [dpdk-dev] [PATCH 16/20] net/dpaa2: add API to support custom hash key Hemant Agrawal
2018-12-27  6:23 ` [dpdk-dev] [PATCH 17/20] mempool/dpaa2: support saving context of buffer pool Hemant Agrawal
2018-12-27  6:23 ` [dpdk-dev] [PATCH 18/20] net/dpaa2: change ref of device to private device Hemant Agrawal
2018-12-27  6:23 ` [dpdk-dev] [PATCH 19/20] bus/fslmc: add support for secondary processes Hemant Agrawal
2018-12-27  6:23 ` [dpdk-dev] [PATCH 20/20] bus/fslmc: add function to map any addr via VFIO Hemant Agrawal
2019-01-08 14:10   ` Ferruh Yigit
2019-01-10  9:58     ` Shreyansh Jain
2019-01-11 11:58       ` Ferruh Yigit [this message]
2019-01-11 12:16         ` Shreyansh Jain
2019-01-11 11:57 ` [dpdk-dev] [PATCH v2 00/20] NXP DPAA2 fixes and enhancements Shreyansh Jain
2019-01-11 11:57   ` [dpdk-dev] [PATCH v2 01/20] bus/fslmc: fix to reset portal memory before use Shreyansh Jain
2019-01-11 11:57   ` [dpdk-dev] [PATCH v2 02/20] bus/fslmc: fix the ring mode to use correct cache settings Shreyansh Jain
2019-01-11 11:57   ` [dpdk-dev] [PATCH v2 03/20] bus/fslmc: fix to use correct physical core for logical core Shreyansh Jain
2019-01-11 11:58   ` [dpdk-dev] [PATCH v2 04/20] net/dpaa2: fix bad check for not-null Shreyansh Jain
2019-01-11 11:58   ` [dpdk-dev] [PATCH v2 05/20] bus/fslmc: fix to convert error msg to warning Shreyansh Jain
2019-01-11 11:58   ` [dpdk-dev] [PATCH v2 06/20] bus/fslmc: fix parse method for bus devices Shreyansh Jain
2019-01-11 11:58   ` [dpdk-dev] [PATCH v2 07/20] net/dpaa2: fix device init for secondary process Shreyansh Jain
2019-01-11 11:58   ` [dpdk-dev] [PATCH v2 08/20] net/dpaa2: enable optional timestamp in mbuf Shreyansh Jain
2019-01-11 11:58   ` [dpdk-dev] [PATCH v2 09/20] bus/fslmc: upgrade to latest qbman library Shreyansh Jain
2019-01-11 11:58   ` [dpdk-dev] [PATCH v2 10/20] bus/fslmc: add dynamic config for memback portal mode Shreyansh Jain
2019-01-11 11:58   ` [dpdk-dev] [PATCH v2 11/20] bus/fslmc: rename portal pi index to consumer index Shreyansh Jain
2019-01-11 11:58   ` [dpdk-dev] [PATCH v2 12/20] bus/fslmc: make portal func static Shreyansh Jain
2019-01-11 11:58   ` [dpdk-dev] [PATCH v2 13/20] net/dpaa2: add dpdmux mc flib Shreyansh Jain
2019-01-11 11:58   ` [dpdk-dev] [PATCH v2 14/20] bus/fslmc: add support for scanning DPDMUX object Shreyansh Jain
2019-01-11 11:58   ` [dpdk-dev] [PATCH v2 15/20] net/dpaa2: add dpdmux initialization and configuration Shreyansh Jain
2019-01-11 11:58   ` [dpdk-dev] [PATCH v2 16/20] net/dpaa2: add API to support custom hash key Shreyansh Jain
2019-01-11 11:58   ` [dpdk-dev] [PATCH v2 17/20] mempool/dpaa2: support saving context of buffer pool Shreyansh Jain
2019-01-11 11:58   ` [dpdk-dev] [PATCH v2 18/20] net/dpaa2: change reference to private device Shreyansh Jain
2019-01-11 11:58   ` [dpdk-dev] [PATCH v2 19/20] bus/fslmc: add support for secondary processes Shreyansh Jain
2019-01-11 11:58   ` [dpdk-dev] [PATCH v2 20/20] bus/fslmc: add function to map any addr via VFIO Shreyansh Jain
2019-01-11 12:24   ` [dpdk-dev] [PATCH v3 00/20] NXP DPAA2 fixes and enhancements Shreyansh Jain
2019-01-11 12:24     ` [dpdk-dev] [PATCH v3 01/19] bus/fslmc: fix to reset portal memory before use Shreyansh Jain
2019-01-11 12:24     ` [dpdk-dev] [PATCH v3 02/19] bus/fslmc: fix the ring mode to use correct cache settings Shreyansh Jain
2019-01-11 12:24     ` [dpdk-dev] [PATCH v3 03/19] bus/fslmc: fix to use correct physical core for logical core Shreyansh Jain
2019-01-11 12:24     ` [dpdk-dev] [PATCH v3 04/19] net/dpaa2: fix bad check for not-null Shreyansh Jain
2019-01-11 12:24     ` [dpdk-dev] [PATCH v3 05/19] bus/fslmc: fix to convert error msg to warning Shreyansh Jain
2019-01-11 12:24     ` [dpdk-dev] [PATCH v3 06/19] bus/fslmc: fix parse method for bus devices Shreyansh Jain
2019-01-11 12:24     ` [dpdk-dev] [PATCH v3 07/19] net/dpaa2: fix device init for secondary process Shreyansh Jain
2019-01-11 12:24     ` [dpdk-dev] [PATCH v3 08/19] net/dpaa2: enable optional timestamp in mbuf Shreyansh Jain
2019-01-11 12:24     ` [dpdk-dev] [PATCH v3 09/19] bus/fslmc: upgrade to latest qbman library Shreyansh Jain
2019-01-11 12:24     ` [dpdk-dev] [PATCH v3 10/19] bus/fslmc: add dynamic config for memback portal mode Shreyansh Jain
2019-01-11 12:24     ` [dpdk-dev] [PATCH v3 11/19] bus/fslmc: rename portal pi index to consumer index Shreyansh Jain
2019-01-11 12:24     ` [dpdk-dev] [PATCH v3 12/19] bus/fslmc: make portal func static Shreyansh Jain
2019-01-11 12:24     ` [dpdk-dev] [PATCH v3 13/19] net/dpaa2: add dpdmux mc flib Shreyansh Jain
2019-01-11 12:24     ` [dpdk-dev] [PATCH v3 14/19] bus/fslmc: add support for scanning DPDMUX object Shreyansh Jain
2019-01-11 12:24     ` [dpdk-dev] [PATCH v3 15/19] net/dpaa2: add dpdmux initialization and configuration Shreyansh Jain
2019-01-11 12:24     ` [dpdk-dev] [PATCH v3 16/19] net/dpaa2: add API to support custom hash key Shreyansh Jain
2019-01-11 12:25     ` [dpdk-dev] [PATCH v3 17/19] mempool/dpaa2: support saving context of buffer pool Shreyansh Jain
2019-01-11 12:25     ` [dpdk-dev] [PATCH v3 18/19] net/dpaa2: change reference to private device Shreyansh Jain
2019-01-11 12:25     ` [dpdk-dev] [PATCH v3 19/19] bus/fslmc: add support for secondary processes Shreyansh Jain
2019-01-11 15:51     ` [dpdk-dev] [PATCH v3 00/20] NXP DPAA2 fixes and enhancements Ferruh Yigit
2019-01-11 16:12       ` Ferruh Yigit
2019-01-14  5:20         ` Shreyansh Jain
2019-01-14  5:19     ` Shreyansh Jain

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