On Thu, Sep 13, 2018 at 06:06:15PM -0600, Micah Parrish wrote: > Hi, new subscriber here. We have a problem with Grub 2 and its use of SNP > instead of MNP. Our UEFI driver for a network card parses the relevant DHCP > options for iSCSI boot, generates an iBFT table, then gets closed by Grub > when it opens the SNP interface. The driver removes the iBFT table as part > of normal unload cleanup. I think this should happen with the Tianocore > UEFI reference driver as well. The problem is often masked or does not > occur when there are multiple network ports enabled. It occurs with several > different vendors NICs. > > Possible solutions I see: > > 1. Grub parses the DHCP options and creates its own iBFT. > > 2. Grub copies the already generated iBFT before destroying the interface. > > 3. Grub opens the network interface MNP instead of SNP. > > Although I am a neophyte at grub and UEFI development, I would like to start > a discussion on possible solutions. Has anyone else seen this?
For possible solution 3, I managed to work out patch to use MNP but is not polished, although it survived my testing. If you don't mind and willing to give it go I will post it here as RFC patch for review. Thanks, Michael > > > Micah Parrish > micah.parr...@hpe.com > Linux OS Engineer > Hewlett-Packard Enterprise > > > _______________________________________________ > Grub-devel mailing list > Grub-devel@gnu.org > https://lists.gnu.org/mailman/listinfo/grub-devel _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
