On Thu, Dec 06, 2018 at 03:19:51PM +1100, David Gibson wrote: > Mellanox ConnectX-5 IB cards (MT27800) seem to cause a call trace when > unbound from their regular driver and attached to vfio-pci in order to pass > them through to a guest. > > This goes away if the disable_idle_d3 option is used, so it looks like a > problem with the hardware handling D3 state. To fix that more permanently, > use a device quirk to disable D3 state for these devices. > > We do this by renaming the existing quirk_no_ata_d3() more generally and > attaching it to the ConnectX-[45] devices (0x15b3:0x1013). > > Signed-off-by: David Gibson <da...@gibson.dropbear.id.au> > --- > drivers/pci/quirks.c | 17 +++++++++++------ > 1 file changed, 11 insertions(+), 6 deletions(-) >
Hi David, Thank for your patch, I would like to reproduce the calltrace before moving forward, but have trouble to reproduce the original issue. I'm working with vfio-pci and CX-4/5 cards on daily basis, tried manually enter into D3 state now, and it worked for me. Can you please post your full calltrace, and "lspci -s PCI_ID -vv" output? Thanks
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