On Mon, Aug 13, 2018 at 02:42:21PM +0300, Arseny Maslennikov wrote: > Pre-3.15 userspace had trouble distinguishing different ports of a NIC > on a single PCI bus/device/function. To solve this, a sysfs field `dev_port' > was introduced quite a while ago (commit v3.14-rc3-739-g3f85944fe207), and > some relevant device drivers were fixed to use it, but not in case of IPoIB. > > The convention for some reason never got documented in the kernel, but > was immediately adopted by userspace (notably udev[1][2], biosdevname[3]) > > 3/3 documents the sysfs field — that's why I'm CC-ing netdev. > > This series was tested on current LTS and 4.18. > > [1] https://lists.freedesktop.org/archives/systemd-devel/2014-June/020788.html > [2] https://lists.freedesktop.org/archives/systemd-devel/2014-July/020804.html > [3] https://github.com/CloudAutomationNTools/biosdevname/blob/c795d51dd93a5309652f0d635f12a3ecfabfaa72/src/eths.c#L38 > > Arseny Maslennikov (3): > IB/ipoib: Use dev_port to expose network interface port numbers > IB/ipoib: Stop using dev_id to expose port numbers > Documentation/ABI: document /sys/class/net/*/dev_port > > Documentation/ABI/testing/sysfs-class-net | 10 ++++++++++ > drivers/infiniband/ulp/ipoib/ipoib_main.c | 2 +- > 2 files changed, 11 insertions(+), 1 deletion(-) This series doesn't apply to rdma for-next, and it is the merge window now. Can you resubmit this aginst 4.19-rc1 in two weeks? Thanks Jason
