[PATCH v2 2/9] doc: fix missing note on UIO module in Linux GSG

[Bruce Richardson]

The docs on binding drivers was updated as part of the removal of the
igb_uio module from the main DPDK repo. As part of that update, a note
about uio_pci_generic requiring legacy interrupts was removed, but
should have been kept.

Fixes: 56bb5841fd06 ("kernel/linux: remove igb_uio")
Cc: thomas at monjalon.net
Cc: stable at dpdk.org

Signed-off-by: Bruce Richardson <bruce.richardson at intel.com>
---
 doc/guides/linux_gsg/linux_drivers.rst | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/doc/guides/linux_gsg/linux_drivers.rst b/doc/guides/linux_gsg/linux_drivers.rst
index ef6fec10d7..bd983b4d81 100644
--- a/doc/guides/linux_gsg/linux_drivers.rst
+++ b/doc/guides/linux_gsg/linux_drivers.rst
@@ -174,6 +174,11 @@ It can be loaded as shown below:
    sudo modprobe uio
    sudo insmod igb_uio.ko
 
+.. note::
+
+    For some devices which lack support for legacy interrupts, e.g. virtual function
+    (VF) devices, the ``igb_uio`` module may be needed in place of ``uio_pci_generic``.
+
 .. note::
 
    If UEFI secure boot is enabled,
-- 
2.32.0