Re: [PATCH v8 0/6] NVMeoFC support on Grub

[krishang <krishang@imap.linux.ibm.com>]

On 2026-02-23 19:14, Avnish Chouhan wrote:

Tested-by: Krishan Gopal Saraswat <krishang@linux.ibm.com>

Regards,
Krishan

> This patch series adds support of NVMeoFC and NVMe Multipath splitter
> on grub. It consists of six
> patches.
> 
> Patch 1/6 
> (0001-ieee1275-powerpc-implements-fibre-channel-discovery-.patch):
> grub-ofpathname doesn't work with fibre channel because there is no
> function currently implemented for it.
> This patch enables it by prividing a function that looks for the port
> name, building the entire path for OF devices.
> 
> Patch 2/6(0002-ieee1275-implement-FCP-methods-for-WWPN-and-LUNs.patch):
> This patch enables the fcp-targets and fcp-luns methods which are
> responsible to get WWPNs and LUNs for fibre channel devices.
> Those methods are specially necessary if the boot directory and grub
> installation are in different FCP disks, allowing the dev_iterate()
> to find the WWPNs and LUNs when called by searchfs.uuid tool.
> 
> Patch 3/6(0003-change-partition-parser.patch):
> Usually grub will parse the PFW arguments by searching for the first
> occurence of the character ':'.
> However, we can have this char more than once on NQN.
> This patch changes the logic to find the last occurence of this char
> so we can get the proper values
> for NVMeoFC
> 
> Patch 4/6(0004-ieee1275-add-support-for-NVMeoFC.patch):
> This patch implements the functions to scan and discovery of NVMeoFC.
> 
> Patch 
> 5/6(0005-ieee1275-ofpath-enable-NVMeoF-logical-device-transla.patch):
> This patch add code to enable the translation of logical devices to
> the of NVMeoFC paths.
> 
> Patch 
> 6/6(0006-ieee1275-support-added-for-multiple-nvme-bootpaths.patch)
> This patch sets mupltiple NVMe boot-devices for more robust boot.
> Scenario where NVMe multipaths are available, all the available
> bootpaths (Max 5)
> will be added as the boot-device.
> 
> Avnish Chouhan (5):
>   ieee1275: implement FCP methods for WWPN and LUNs
>   ieee1275: change the logic of ieee1275_get_devargs()
>   ieee1275: add support for NVMeoFC
>   ieee1275: ofpath enable NVMeoF logical device translate
>   ieee1275: support added for multiple nvme bootpaths
> 
> Diego Domingos (1):
>   ieee1275/powerpc: implements fibre channel discovery for ofpathname
> 
>  grub-core/disk/ieee1275/ofdisk.c
>  grub-core/kern/ieee1275/openfw.c
>  grub-core/osdep/linux/ofpath.c
>  grub-core/osdep/unix/platform.c
>  include/grub/util/ofpath.h
>  include/grub/util/install.h
>  6 files changed

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