Get inventory FRU from inventory system path

[john.chung at mic.com.tw]

Hi Andrei,

Thank you for your generous help.
I would ty another path for my system.

-----Original Message-----
From: Andrei Kartashev [mailto:a.kartashev at yadro.com] 
Sent: Thursday, October 8, 2020 6:21 PM
To: john.chung (鍾佳航 - MCT) <john.chung at mic.com.tw>; openbmc at lists.ozlabs.org
Subject: Re: Get inventory FRU from inventory system path

On Thu, 2020-10-08 at 10:09 +0000, john.chung at mic.com.tw wrote:
> Hi Andrei,
> 
> > What are you trying to achieve?
> I am trying to display the system information section in phosphor- 
> webui.
> This section would call the 'getServerInfo' function. 
> The function would need to using the
> "/xyz/openbmc_project/inventory/system" path.
> 
> > The REST API do just a translation to dbus, so you expect to get 
> > exactly what EntityManager (or other inventory-related daemon) 
> > expose.
> > And EM expose nothing to /xyz/openbmc_project/inventory/system
> Yes, I want to get exactly what EntityManager (or other inventory- 
> related daemon) expose.
> But it's null for this dbus path now.

Right, there is no info there, /xyz/openbmc_project/inventory/system is kind of parent node, id doesn't store any information. That is how EM works.
In our system we use our custom interface for baseboard to provide this kind of information.



> -----Original Message-----
> From: Andrei Kartashev [mailto:a.kartashev at yadro.com]
> Sent: Thursday, October 8, 2020 5:58 PM
> To: john.chung (鍾佳航 - MCT) <john.chung at mic.com.tw>; 
> openbmc at lists.ozlabs.org
> Subject: Re: Get inventory FRU from inventory system path
> 
> Hi John,
> 
> What are you trying to achieve?
> The REST API do just a translation to dbus, so you expect to get 
> exactly what EntityManager (or other inventory-related daemon) expose.
> And EM expose nothing to /xyz/openbmc_project/inventory/system
> 
> On Thu, 2020-10-08 at 08:53 +0000, john.chung at mic.com.tw wrote:
> > Hi,
> >  
> > I am trying to get the data from this path “ 
> > https://<bmcip>/xyz/openbmc_project/inventory/system”.
> > But only get the following data from this path.
> >  
> > "/xyz/openbmc_project/inventory/system": {
> > "AssetTag": ""
> > },
> >  
> > Here is an example for this path which I expected to get.
> >  
> >     "/xyz/openbmc_project/inventory/system": {
> >         "BuildDate": "",
> >         "Cached": 0,
> >         "FieldReplaceable": 0,
> >         "Manufacturer": "",
> >         "Model": "2",
> >         "PartNumber": "0000000000000000",
> >         "Present": 1,
> >         "PrettyName": "",
> >         "SerialNumber": "0000000000000000"
> >     },
> >  
> >  
> >  
> > Only using entity-manager in my project for inventory FRU.
> > I could get the FRU data from this path “ 
> > https://<bmcip>/xyz/openbmc_project/inventory/system/board/<name>”
> > But the inventory system path is null.
> >  
> > Any setting I should set for getting FRU from this path?
> >  
> > Regards,
> > John Chung
> >  
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> --
> Best regards,
> Andrei Kartashev
> 
> 
> 
> 
> =====================================================================
> =======
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--
Best regards,
Andrei Kartashev