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https://git.proxmox.com/git/mirror_edk2
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5cb90e14e1
This patch is used to fix the wrong IpSb->State update issue. Issue reproduce steps: 1 .First PXE boot, then boot to shell; 2. ifconfig -s eth0 dhcp (Success); 3. Reboot and do PXE, then boot to shell; 4. ifconfig -s eth0 dhcp (Platform failed to get IP address no matter how many times retried.) Root cause: On step3 reboot, policy is DHCP (Changed by step2). So, Ip4Dxe driver will try to get one IP address from DHCP server automatically. Before it get the IP address successfully, the IpSb->State will be always in IP4_SERVICE_STARTED status until the Instance->Dhcp4Event is triggered, then it can be changed to IP4_SERVICE_CONFIGED. But the DHCP process will be interrupted by PXE boot, which will change the policy to static, and the Instance->Dhcp4Event will be also closed directly. However, current implementation doesn't update the IpSb->State to IP4_SERVICE_UNSTARTED status in such case. So, failure happened. Cc: Ye Ting <ting.ye@intel.com> Cc: Fu Siyuan <siyuan.fu@intel.com> Cc: Ryan Harkin <ryan.harkin@linaro.org> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jiaxin Wu <jiaxin.wu@intel.com> Reviewed-by: Ryan Harkin <ryan.harkin@linaro.org> Reviewed-by: Fu Siyuan <siyuan.fu@intel.com> Reviewed-by: Ye Ting <ting.ye@intel.com> Tested-by: Ryan Harkin <ryan.harkin@linaro.org> |
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| .. | ||
| Application | ||
| Bus | ||
| Core | ||
| Include | ||
| Library | ||
| Logo | ||
| Universal | ||
| Contributions.txt | ||
| License.txt | ||
| MdeModulePkg.dec | ||
| MdeModulePkg.dsc | ||
| MdeModulePkg.uni | ||
| MdeModulePkgExtra.uni | ||