On 09/25/15 09:21, Leekha Shaveta wrote:
> 
> 
> -----Original Message-----
> From: Laszlo Ersek [mailto:[email protected]] 
> Sent: Friday, September 25, 2015 1:04 AM
> To: Leekha Shaveta-B20052 <[email protected]>
> Cc: [email protected] <[email protected]>; Fu, Siyuan 
> <[email protected]>; Chris Cuthbert <[email protected]>; Gary Ching-Pang 
> Lin <[email protected]>
> Subject: Re: [edk2] TFTP issue, Ping 1st packet reply missing
> 
> On 09/24/15 13:08, Laszlo Ersek wrote:
> 
>> BTW when I wrote that I had just tested PXE boot, I didn't use the 
>> UEFI shell utility; it was a network boot option instead.
> 
> Now I tested the shell command too, in my usual virtual network environment; 
> it works fine for me.
> 
> Thanks
> Laszlo
> 
> I Too faced compilation issues, so I picked up "Guid/NicIp4ConfigNvData.h" 
> file from tianocore site
> " 
> http://sourceforge.net/p/tianocore/edk2/ci/2638c111076f9a49d4766ca5acbafa0eb7f66a18/tree/MdeModulePkg/Include/Guid/NicIp4ConfigNvData.h";
> Copied it in Guid folder and my code compiled.
> 
> Is this the correct file to compile the code with?

No. Please pull the new commits; Jaben checked in the patch that fixes
the build (on Windows at least, and I have a pending patch that fixes it
with gcc too).

Thanks
Laszlo

> 
> Regards,
> Shaveta
> 
>>
>> ... I tried to build the TFTP shell command into OVMF now, just to 
>> test it, but it failed to compile, and the patch that supposedly fixes 
>> it is not readable on the list. :(
>>
>> Thanks
>> Laszlo
>>
>>>
>>> Thanks and regards,
>>> Shaveta
>>>
>>> -----Original Message-----
>>> From: Laszlo Ersek [mailto:[email protected]]
>>> Sent: Thursday, September 24, 2015 2:05 PM
>>> To: Leekha Shaveta-B20052 <[email protected]>
>>> Cc: [email protected] <[email protected]>; Fu, Siyuan 
>>> <[email protected]>; Chris Cuthbert <[email protected]>; Gary 
>>> Ching-Pang Lin <[email protected]>
>>> Subject: Re: [edk2] TFTP issue, Ping 1st packet reply missing
>>>
>>> On 09/24/15 08:04, Leekha Shaveta wrote:
>>>> Hi,
>>>>
>>>> Tftp is also giving issues.
>>>>
>>>> During tftp, as one of its step it calls " GetFileSize"
>>>> Which go through Mtftp4 protocol and calls " Mtftp4->GetInfo"
>>>>
>>>> And this fails.
>>>>
>>>> Any idea what is the issue with tftp command? Has anyone tested it 
>>>> successfully?
>>>
>>> I frequently retest TFTP, and I just did it right now as well, on top of 
>>> current master. It works fine. My test environment is a virtual network, 
>>> where OVMF runs in a virtual machine, and DHCP and TFTP are configured by 
>>> libvirt and served by dnsmasq. The edk2 PXE client downloads shim, then 
>>> shim downloads grub (with the PXE Base Code protocol), then grub downloads 
>>> the kernel and the initial ramdisk, for a networked linux installation.
>>>
>>> I have encountered and/or investigated quite a few TFTP issues, and 
>>> most of the time they have occurred due to problematic DHCP or TFTP 
>>> config, or problems in UEFI applications, or lower level network 
>>> driver implementations. (In several other cases though, people 
>>> contributed edk2 fixes ultimately.)
>>>
>>> Anyhow, the first thing to in such cases is to capture a detailed packet 
>>> log with tcpdump or wireshark, and analyze the packets against the DHCP / 
>>> TFTP server config, the DHCP / PXE specs, and the edk2 code. Usually 
>>> (again, in my experience, although I don't claim to be an expert), the DHCP 
>>> / TFTP server config, or -- possibly -- the network is the culprit.
>>>
>>> Please capture some packets, and analyze them. Analyzing DHCP packets 
>>> against the specs and the server config takes forever, but I've found it to 
>>> be the only way. Good luck.
>>>
>>> Thanks
>>> Laszlo
>>>
>>>
>>>>
>>>> Thanks and Regards,
>>>> Shaveta
>>>>
>>>> -----Original Message-----
>>>> From: edk2-devel [mailto:[email protected]] On Behalf 
>>>> Of Leekha Shaveta
>>>> Sent: Thursday, September 24, 2015 11:15 AM
>>>> To: [email protected]
>>>> Subject: [edk2] Ping 1st packet reply missing
>>>>
>>>>
>>>> Hi,
>>>>
>>>> My ping is working  with Intel's E1000 driver code.
>>>>
>>>> But everytime 1st packet is not getting received successfully, is there 
>>>> some known issue here, or something to be set/missing?
>>>>
>>>> Regards,
>>>> Shaveta
>>>>
>>>> Ping Snippet:
>>>> ===========
>>>> Shell> ping 192.168.3.1ping 192.168.3.1 -n 16
>>>> InstallProtocolInterface: 41D94CD2-35B6-455A-8258-D4E51334AADD DF56EA60 
>>>> Ping 192.168.3.1 16 data bytes.
>>>> GigAdapter->cur_rx_ind: 0
>>>> GigAdapter->cur_rx_ind: 1
>>>> 16 bytes from 192.168.3.1 : icmp_seq=2 ttl=0 time=1ms
>>>> GigAdapter->cur_rx_ind: 2
>>>> 16 bytes from 192.168.3.1 : icmp_seq=3 ttl=0 time=1ms
>>>> GigAdapter->cur_rx_ind: 3
>>>> 16 bytes from 192.168.3.1 : icmp_seq=4 ttl=0 time=1ms
>>>> GigAdapter->cur_rx_ind: 4
>>>> 16 bytes from 192.168.3.1 : icmp_seq=5 ttl=0 time=1ms
>>>> GigAdapter->cur_rx_ind: 5
>>>> 16 bytes from 192.168.3.1 : icmp_seq=6 ttl=0 time=1ms
>>>> GigAdapter->cur_rx_ind: 6
>>>> 16 bytes from 192.168.3.1 : icmp_seq=7 ttl=0 time=1ms
>>>> GigAdapter->cur_rx_ind: 7
>>>> 16 bytes from 192.168.3.1 : icmp_seq=8 ttl=0 time=1ms
>>>> GigAdapter->cur_rx_ind: 0
>>>> 16 bytes from 192.168.3.1 : icmp_seq=9 ttl=0 time=1ms
>>>> GigAdapter->cur_rx_ind: 1
>>>> 16 bytes from 192.168.3.1 : icmp_seq=10 ttl=0 time=1ms
>>>> GigAdapter->cur_rx_ind: 2
>>>> 16 bytes from 192.168.3.1 : icmp_seq=11 ttl=0 time=1ms
>>>> GigAdapter->cur_rx_ind: 3
>>>> 16 bytes from 192.168.3.1 : icmp_seq=12 ttl=0 time=1ms
>>>> GigAdapter->cur_rx_ind: 4
>>>> 16 bytes from 192.168.3.1 : icmp_seq=13 ttl=0 time=1ms
>>>> GigAdapter->cur_rx_ind: 5
>>>> 16 bytes from 192.168.3.1 : icmp_seq=14 ttl=0 time=1ms
>>>> GigAdapter->cur_rx_ind: 6
>>>> 16 bytes from 192.168.3.1 : icmp_seq=15 ttl=0 time=1ms
>>>> GigAdapter->cur_rx_ind: 7
>>>> 16 bytes from 192.168.3.1 : icmp_seq=16 ttl=0 time=1ms
>>>>
>>>> 16 packets transmitted, 15 received, 6% packet loss, time 15ms
>>>>
>>>> Rtt(round trip time) min=1ms max=1ms avg=1ms
>>>>
>>>>  Sent 1 packet:
>>>> Shell> ping 192.168.3.1 -n 1
>>>> InstallProtocolInterface: 41D94CD2-35B6-455A-8258-D4E51334AADD DF56EA60 
>>>> Ping 192.168.3.1 16 data bytes.
>>>> GigAdapter->cur_rx_ind: 4
>>>>
>>>> 1 packets transmitted, 0 received, 100% packet loss, time 0ms
>>>>
>>>>> -----Original Message-----
>>>>> From: Leekha Shaveta-B20052
>>>>> Sent: Saturday, September 12, 2015 11:34 PM
>>>>> To: 'Benjamin Herrenschmidt' 
>>>>> <[email protected]<mailto:[email protected]>>; 
>>>>> 'Andrew Fish' <[email protected]<mailto:[email protected]>>;
>>>>> '[email protected]' 
>>>>> <[email protected]<mailto:[email protected]>>; 'Tian, 
>>>>> Feng' <[email protected]<mailto:[email protected]>>
>>>>> Subject: Re: PCI and non-1:1 mapping of MMIO space (Doubt o PCI 
>>>>> Root bridge IOMap and IoAllocateBuffer)
>>>>>
>>>>> Hi
>>>>>
>>>>> I was implementing PCI RootBridgeIo protocol and have some doubts in 
>>>>> "IoMap" and "AllocateBuffer" functions of this protocol.
>>>>>
>>>>> In our platform, PCI space is starting form address 0x50_0000_0000 (40 
>>>>> bit addressable) And its mapping on PCI bus is like:
>>>>> 50_0000_0000 => 0000_0000 (32 bit)
>>>>>
>>>>> From where the "AllocateBuffer" function should allocate memory when 
>>>>> asked by any PCI device?
>>>>> What is the meaning of "Allocates pages that are suitable for an 
>>>>> EfiPciOperationBusMasterCommonBuffer or
>>>>> EfiPciOperationBusMasterCommonBuffer64 mapping"
>>>>>
>>>>> How to manage mapping in "RootBridgeIoMap" function?
>>>>>
>>>>> Thanks and Regards,
>>>>> Shaveta
>>>>>
>>>>> -----Original Message-----
>>>>> From: edk2-devel [mailto:[email protected]] On Behalf 
>>>>> Of Tian, Feng
>>>>> Sent: Wednesday, August 26, 2015 7:24 AM
>>>>> To: Benjamin Herrenschmidt
>>>>> <[email protected]<mailto:[email protected]>>; Andrew 
>>>>> Fish <[email protected]<mailto:[email protected]>>
>>>>> Cc: [email protected]<mailto:[email protected]>
>>>>> <[email protected]<mailto:[email protected]>>; Tian, Feng 
>>>>> <[email protected]<mailto:[email protected]>>
>>>>> Subject: Re: [edk2] PCI and non-1:1 mapping of MMIO space
>>>>>
>>>>> Hi, Ben & Andrew
>>>>>
>>>>> The GetBarAttributes() returns a set of ACPI 2.0 resource descriptors 
>>>>> that describe the current configuration of the BARs of the PCI controller.
>>>>>
>>>>> What I understood is the returned value of GetBarAttributes() is a CPU 
>>>>> address rather than a PCI address. From the view of PciIo, nobody needs 
>>>>> to know/use Bar's PCI address.
>>>>>
>>>>> Thanks
>>>>> Feng
>>>>>
>>>>> -----Original Message-----
>>>>> From: edk2-devel [mailto:[email protected]] On Behalf 
>>>>> Of Benjamin Herrenschmidt
>>>>> Sent: Wednesday, August 26, 2015 07:54
>>>>> To: Andrew Fish
>>>>> Cc: [email protected]<mailto:[email protected]>
>>>>> Subject: Re: [edk2] PCI and non-1:1 mapping of MMIO space
>>>>>
>>>>> (Argh, I keep sending these from my IBM address which isn't the one on 
>>>>> the list. Sorry Andrew for the duplicates).
>>>>>
>>>>> On Tue, 2015-08-25 at 14:48 -0700, Andrew Fish wrote:
>>>>>
>>>>>>
>>>>>>> So if we stick to the definition of GetBarAttributes() only 
>>>>>>> returning a BAR value, then it's impossible to implement a PCI 
>>>>>>> GOP driver by following the spec.
>>>>>>>
>>>>>> I came to that conclusion too.
>>>>>
>>>>> :(
>>>>>
>>>>>>> Now, there's one thing that might work, which would be to exploit 
>>>>>>> the "AddressTranslationOffset" field of the ACPI resource 
>>>>>>> descriptor.
>>>>>>>
>>>>>> How do you represent a system like this in ACPI? It might be a 
>>>>>> good idea to solve it in a similar way.
>>>>>
>>>>> Unfortunately, I am not familiar with the details of ACPI, I only have a 
>>>>> high level understanding of it. Our platforms have been Open Firmware 
>>>>> based for as far as I've been involved with them and lately, we use C 
>>>>> -generated flat device-tree along with a custom runtime firmwarealled a 
>>>>> OPAL).
>>>>>
>>>>> At this point I'm not (yet) considering a move to ACPI. I'm doing a proof 
>>>>> of concept ppc64 UEFI port to get a feel of the water temperature more 
>>>>> than anything else (though I'll be happy to contribute things back once I 
>>>>> get the appropriate legalese sorted internally to IBM).
>>>>>
>>>>>> The PCI IO was designed to not required the 1:1 mapping. The 
>>>>>> direct access to the Framebuffer came along later, as was mostly a 
>>>>>> fallback for the OS on a safe mode boot kind of thing. I think we 
>>>>>> missed passing the frame buffer out on a system that was not 1:1.
>>>>>
>>>>> Ok. Well, it will be needed even on non-1:1 systems, we will have similar 
>>>>> requirements of the OS needing an early boot framebuffer etc...
>>>>> and I suspect the desire to directly access BARs (at least 
>>>>> prefetchable
>>>>> ones) from the CPU isn't going away in other areas either.
>>>>>
>>>>> So maybe we should try to address this. I'm trying to figure out how to 
>>>>> join the appropriate working groups etc... so I can participate in the 
>>>>> spec side discussion as well (which I'll need to do for other reasons 
>>>>> anyway if we are ever going to officially defining the ppc64 ABI in the 
>>>>> spec).
>>>>>
>>>>> Cheers,
>>>>> Ben.
>>>>>
>>>>>> Thanks,
>>>>>>
>>>>>> Andrew Fish
>>>>>>
>>>>>>> Cheers,
>>>>>>> Ben.
>>>>> _______________________________________________
>>>>> edk2-devel mailing list
>>>>> [email protected]<mailto:[email protected]>
>>>>> https://lists.01.org/mailman/listinfo/edk2-devel
>>>>> _______________________________________________
>>>>> edk2-devel mailing list
>>>>> [email protected]<mailto:[email protected]>
>>>>> https://lists.01.org/mailman/listinfo/edk2-devel
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>>
> 

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