From mboxrd@z Thu Jan  1 00:00:00 1970
From: Thomas Monjalon <thomas@monjalon.net>
Subject: Re: [PATCH] [RFC] ether: standardize getting the port by
	name
Date: Mon, 18 Dec 2017 23:25:37 +0100
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 <20171205110446.GN4062@6wind.com> <4433948.XFY0rnHxgs@xps>
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Cc: dev@dpdk.org, Yuanhan Liu <yliu@fridaylinux.org>,
 =?ISO-8859-1?Q?Ga=EBtan?= Rivet <gaetan.rivet@6wind.com>,
 Stephen Hemminger <stephen@networkplumber.org>,
 Ciara Loftus <ciara.loftus@intel.com>, Kevin Traynor <ktraynor@redhat.com>,
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To: Adrien Mazarguil <adrien.mazarguil@6wind.com>
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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