[ipxe-devel] [ipxe/ipxe] [efi_snp] Subtract link-layer header length from MaxPacketSize (#73)

[Rob Taglang]

It seems that the EDK network stack expects this to be 1500, not 1514.

As-is, in the case of fragmentation, the UEFI UDP layer will compute fragment sizes larger than the MTU which typically get dropped.
You can view, comment on, or merge this pull request online at:

https://github.com/ipxe/ipxe/pull/73

-- Commit Summary --

* [efi_snp] Subtract link-layer header length from MaxPacketSize

-- File Changes --

M src/interface/efi/efi_snp.c (2)

-- Patch Links --

https://github.com/ipxe/ipxe/pull/73.patch
https://github.com/ipxe/ipxe/pull/73.diff

[Michael Brown]

Closed #73.

[Michael Brown]

Merged (with a minor change to use netdev->mtu directly instead of replicating the calculation); thanks!