Intel I218-LM LAN card speed slow

[Richard_Compal]

Dear Robin,
oh, i only git the source code from iPXE, and build ipxe.efi with command: make bin-x86_64-efi/ipxe.efi EMBED=myscript.ipxe, i don't know i use which driver. (In fact, we used iPXE with Legacy loong time, but we didn't know it deeply. -_-! )

I add PCI_ROM ( 0x8086, 0x155a, "i218lm", "I218-LM", 0 ) into intel.c, and rebuild ipxe.efi, but it seems like no improvement, current we cannot make sure this is a BIOS issue or Intel driver issue as you said, because the same NB boot to Legacy model with iPXE, the speed normal. Do you have any idea about it? or tell me how to do for using the native iPXE driver or SNP/NII driver?

By the way, we test so much LAN chipset, they all no speed issue, except Intel I218(VEN_8086&DEV_155A) and I217(VEN_8086&DEV_153A&SUBSYS_05BD1028) have speed slowly issue.