https://bugs.dpdk.org/show_bug.cgi?id=1596
Bug ID: 1596
Summary: devbind no longer works unless VFIO_UNSAFE is enabled
Product: DPDK
Version: 24.11
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: major
Priority: Normal
Component: core
Assignee: dev@dpdk.org
Reporter: step...@networkplumber.org
Target Milestone: ---
Debian (and probably lots of other distributions), do not enable unsafe VFIO
option (CONFIG_VFIO_NOIOMMU). If that is true, then the module parameter does
not exist.
This causes DPDK devbind to fail:
Error: failed to check unsafe noiommu mode - Cannot open
/sys/module/vfio/parameters/enable_unsafe_noiommu_mode: [Errno 2] No such file
or directory: '/sys/module/vfio/parameters/enable_unsafe_noiommu_mode'
This regression is caused by the commit.
commit 6ca0f1c8450d6e28926cad33c6500ad487f4cfdb
Author: Fidaullah Noonari <fidaullah.noon...@emumba.com>
Date: Wed Oct 2 11:13:12 2024 -0700
usertools/devbind: support VFIO non-IOMMU mode
This patch adds noiommu option to dpdk-devbind.
If the no IOMMU is detected, then if noiommu flag is set
the vfio-pci unsafe_noiommu_mode flag is set.
Signed-off-by: Fidaullah Noonari <fidaullah.noon...@emumba.com>
Signed-off-by: Stephen Hemminger <step...@networkplumber.org>
Acked-by: Bruce Richardson <bruce.richard...@intel.com>
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