Regarding PXE boot NACK error.

* Regarding PXE boot NACK error.
@ 2019-03-07 17:36 MohammadYounasKhan.P
  2019-03-10 17:48 ` MohammadYounasKhan.P
  0 siblings, 1 reply; 4+ messages in thread
From: MohammadYounasKhan.P @ 2019-03-07 17:36 UTC (permalink / raw)
  To: edk2-devel; +Cc: Shekar.Babu.S, Sriramkumar.Raju, KarunakarPoosapalli

[-- Attachment #1: Type: text/plain, Size: 753 bytes --]

Hi All,

When one of DHCP cum PXE server which is not configured properly and returns NACK.

When PxeBcDhcp4Dora() returns EFI_TIME_OUT and PxeBcSelectBootPrompt () returns EFI_NOT_FOUND, do we need to abort the DHCP transaction or not in PxeBcDiscoverBootFile()? Or should we retry?
Currently it calls PxeBcDhcp4BootInfo() to get the boot info.

PxeBcDhcp4CallBack is getting called 2 times:

Dhcp4Event: 0x1 (Dhcp4RcvdOffer)
Dhcp4Event: 0xC (Dhcp4Fail)

Do we need to retry PxeBcDhcp4CallBack() for more times even if it is Dhcp4Fail?

EfiPxeLoadFile() -> PxeBcLoadBootFile () -> PxeBcDiscoverBootFile() -> PxeBcSelectBootPrompt()

Attached the transaction debug log for reference.
Please share your comments.

Thank you,
Younas.

[-- Attachment #2: DebugLog.txt --]
[-- Type: text/plain, Size: 1658 bytes --]

EfiPxeLoadFile Entry
MediaStatus: Success
UsingIpv6: 0
EfiPxeBcStart Entry
Mode->UsingIpv6: 0Start PXE over IPv6
Private->Udp4Read->Configure Status: Success
PxeBcSeedDhcp4Packet Entry
PxeBcSeedDhcp4Packet Exit
CreateEvent for Arp Status: Success
SetTimer for ARP Status: Success
CreateEvent for Icmp Status: Success
PxeBcSetIp4Policy Entry
Ip4Config2->GetData Status: Success
PxeBcSetIp4Policy Exit
PxeBcSetIp4Policy Status: Success
CreateEvent for Udptimeout Status: Success
Everything is success
PxeBc->Start() Status: Success
PxeBcLoadBootFile Entry
PxeBcInstallCallback Entry
InstallProtocolInterface: 245DCA21-FB7B-11D3-8F01-00A0C969723B B4962190
PxeBcInstallCallback Exit Status: Success
PxeBcInstallCallback Status: Success
Private->BootFileSize: 0
PxeBcDiscoverBootFile Entry
EfiPxeBcDhcp Entry
Mode->UsingIpv6: 0PxeBcDhcp4Dora Entry
PxeBcBuildDhcp4Options Entry
PxeBcBuildDhcp4Options Exit Index: 0x5
OptCount: 0x5
Dhcp4->Configure Status: Success
PxeBcDhcp4CallBack Entry, Dhcp4Event: 0x1
PxeBcParseDhcp4Options Entry
Found the required option. So return the option
Callback Status: Warning Unknown Glyph
PxeBcDhcp4CallBack Exit Status: Success
PxeBcDhcp4CallBack Entry, Dhcp4Event: 0xC
returns success
Dhcp4->Start Status: Time out
PxeBcDhcp4Dora Exit Status: Time out
PxeBcDhcp4Dora Status: Time out
Private->Udp6Read->Configure Status: Success
EfiPxeBcDhcp Exit status:Success
PxeBc->Dhcp Status: Success
PxeBcSelectBootPrompt Status: Not Found
Mode->ProxyOfferReceived: 0x0
Mode->UsingIpv6: 0

DXE_ASSERT!: c:\dummy\NetworkPkg\UefiPxeBcDxe\PxeBcBoot.c (508): Cache4->OptList[6] != ((void *) 0)

^ permalink raw reply	[flat|nested] 4+ messages in thread