On Tue, 24 Feb 2026 19:39:42 -0800 Dimon Zhao <[email protected]> wrote:
> Due to a chip design limitation, only the VF > supports the igb_uio driver. The PF does not. > > The igb_uio driver requires allocating interrupts and configuring the > PCIe MSI-X table before the driver's probe function is called. > This pre-probe configuration is only possible on the VF due to the > hardware limitation; the PF can only configure the MSI-X table during > its probe process. > > Therefore, using igb_uio on the PF will fail. > This commit clarifies this restriction. > > Signed-off-by: Dimon Zhao <[email protected]> The documentation doesn't make it clear that nbl_core is for PF and igb_uio or vfio-pci should be used for VF. Is the VF and PF sharing same ops structure? Also, there should be a entry like this now: RTE_PMD_REGISTER_KMOD_DEP(net_nbl_vf, "* igb_uio | vfio-pci");
