> -----Original Message-----
> From: Jason Gunthorpe <jgg@xxxxxxxxxx>
> Sent: Monday, August 23, 2021 11:11 AM
> To: Nikolova, Tatyana E <tatyana.e.nikolova@xxxxxxxxx>
> Cc: dledford@xxxxxxxxxx; leon@xxxxxxxxxx; linux-rdma@xxxxxxxxxxxxxxx
> Subject: Re: [PATCH v2 rdma-core] irdma: Add ice and irdma to kernel-boot
> rules
>
> On Mon, Aug 23, 2021 at 10:48:16AM -0500, Tatyana Nikolova wrote:
> > Add ice and irdma to kernel-boot rules so that these devices are
> > recognized as iWARP and RoCE capable.
> >
> > Otherwise the port mapper service which is only relevant for iWARP
> > devices may not start automatically after boot.
> >
> > Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@xxxxxxxxx>
> > kernel-boot/rdma-description.rules | 2 ++
> > 1 file changed, 2 insertions(+)
>
> Given that ice is both iwarp and roce, is there some better way to detect
> this? Doesn't the aux device encode it?
Hi Jason,
We tried a few experiments without success. The auxiliary devices alias with our driver and not ice, so maybe this is the reason?
Here is an example of what we tried.
udevadm info /sys/devices/pci0000:2e/0000:2e:00.0/0000:2f:00.0/ice.roce.0
P: /devices/pci0000:2e/0000:2e:00.0/0000:2f:00.0/ice.roce.0
E: DEVPATH=/devices/pci0000:2e/0000:2e:00.0/0000:2f:00.0/ice.roce.0
E: DRIVER=irdma
E: MODALIAS=auxiliary:ice.roce
E: SUBSYSTEM=auxiliary
udevadm info /sys/bus/auxiliary/devices/ice.roce.0
P: /devices/pci0000:2e/0000:2e:00.0/0000:2f:00.0/ice.roce.0
E: DEVPATH=/devices/pci0000:2e/0000:2e:00.0/0000:2f:00.0/ice.roce.0
E: DRIVER=irdma
E: MODALIAS=auxiliary:ice.roce
E: SUBSYSTEM=auxiliary
Given the udevadm output, we put the following line in the udev rdma-description.rules:
SUBSYSTEMS=="auxiliary", DEVPATH=="*/devices/pci0000:2e/0000:2e:00.0/0000:2f:00.0/ice.roce.0/*", ENV{ID_RDMA_ROCE}="1"
Thank you,
Tatyana
udevadm info
> > /sys/devices/pci0000:2e/0000:2e:00.0/0000:2f:00.0/ice.roce.0
> > P: /devices/pci0000:2e/0000:2e:00.0/0000:2f:00.0/ice.roce.0
> > E: DEVPATH=/devices/pci0000:2e/0000:2e:00.0/0000:2f:00.0/ice.roce.0
> > E: DRIVER=irdma
> > E: MODALIAS=auxiliary:ice.roce
> > E: SUBSYSTEM=auxiliary
> >
> > udevadm info /sys/bus/auxiliary/devices/ice.roce.0
> > P: /devices/pci0000:2e/0000:2e:00.0/0000:2f:00.0/ice.roce.0
> > E: DEVPATH=/devices/pci0000:2e/0000:2e:00.0/0000:2f:00.0/ice.roce.0
> > E: DRIVER=irdma
> > E: MODALIAS=auxiliary:ice.roce
> > E: SUBSYSTEM=auxiliary
> >
> > We put the following line in the udev rdma-description.rules:
> >
> > SUBSYSTEMS=="auxiliary",
> > DEVPATH=="*/devices/pci0000:2e/0000:2e:00.0/0000:2f:00.0/ice.roce.0/*"
> > ,
> > ENV{ID_RDMA_ROCE}="1"
