netdev - Re: [next-queue PATCH 5/8] igb: Add support for ethtool MAC address filters

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Date:   Fri, 23 Feb 2018 20:38:44 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Vinicius Costa Gomes <vinicius.gomes@...el.com>,
        intel-wired-lan@...ts.osuosl.org
CC:     jeffrey.t.kirsher@...el.com, netdev@...r.kernel.org,
        jesus.sanchez-palencia@...el.com
Subject: Re: [next-queue PATCH 5/8] igb: Add support for ethtool MAC address filters

On February 23, 2018 5:20:33 PM PST, Vinicius Costa Gomes <vinicius.gomes@...el.com> wrote:
>This adds the capability of configuring the queue steering of arriving
>packets based on their source and destination MAC addresses.
>
>In practical terms this adds support for the following use cases,
>characterized by these examples:
>
>$ ethtool -N eth0 flow-type ether dst aa:aa:aa:aa:aa:aa action 0
>(this will direct packets with destination address "aa:aa:aa:aa:aa:aa"
>to the RX queue 0)
>
>$ ethtool -N eth0 flow-type ether src 44:44:44:44:44:44 action 3
>(this will direct packets with destination address "44:44:44:44:44:44"
>to the RX queue 3)
>
>Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@...el.com>
>---

[snip]

>diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c
>b/drivers/net/ethernet/intel/igb/igb_ethtool.c
>index 143f0bb34e4d..d8686a0f5b5d 100644
>--- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
>+++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
>@@ -152,6 +152,9 @@ static const char
>igb_priv_flags_strings[][ETH_GSTRING_LEN] = {
> 
> #define IGB_PRIV_FLAGS_STR_LEN ARRAY_SIZE(igb_priv_flags_strings)
> 
>+static const u8 broadcast_addr[ETH_ALEN] = {
>+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff };

This is already defined in an existing header, don't have it handy but likely etherdevice.h.

-- 
Florian