18/12/2017 23:30, Stephen Hemminger: > On Mon, 18 Dec 2017 23:25:37 +0100 > Thomas Monjalon <tho...@monjalon.net> wrote: > > > 05/12/2017 14:20, Thomas Monjalon: > > > 05/12/2017 12:04, Adrien Mazarguil: > > > > Just for information, this "port=x" argument in mlx4 is consistent with > > > > the > > > > value found in /sys/class/net/ethX/dev_port under Linux. If we choose > > > > to use > > > > a port index (instead of a MAC or something else), it would make sense > > > > to > > > > standardize it on the same order as given by the host OS for consistency > > > > across all PMDs. > > > > > > Good idea, thanks. > > > > dev_port is implemented in Linux for few devices: > > > > % git grep -l '\<dev_port\>' drivers/net/ethernet > > drivers/net/ethernet/broadcom/bnxt/bnxt.c > > drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c > > drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c > > drivers/net/ethernet/intel/i40e/i40e_fcoe.c > > drivers/net/ethernet/mellanox/mlx4/en_netdev.c > > > > port is used to distinguish multiple physical ports on a single card. > It is not global like the DPDK port.
Yes, it is an additional property helpful to identify devices.
