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Date: Sun, 05 Jun 2016 23:12:13 -0400 (EDT)
From: David Miller <davem@...emloft.net>
To: mschmidt@...hat.com
Cc: netdev@...r.kernel.org, Yuval.Mintz@...gic.com,
Ariel.Elior@...gic.com
Subject: Re: [PATCH net] bnx2x: allow adding VLANs while interface is down
From: Michal Schmidt <mschmidt@...hat.com>
Date: Fri, 3 Jun 2016 15:32:18 +0200
> Since implementing VLAN filtering in commit 05cc5a39ddb74
> ("bnx2x: add vlan filtering offload") bnx2x refuses to add a VLAN while
> the interface is down:
>
> # ip link add link enp3s0f0 enp3s0f0_10 type vlan id 10
> RTNETLINK answers: Bad address
>
> and in dmesg (with bnx2x.debug=0x20):
> bnx2x: [bnx2x_vlan_rx_add_vid:12941(enp3s0f0)]Ignoring VLAN
> configuration the interface is down
>
> Other drivers have no problem with this.
> Fix this peculiar behavior in the following way:
> - Accept requests to add/kill VID regardless of the device state.
> Maintain the requested list of VIDs in the bp->vlan_reg list.
> - If the device is up, try to configure the VID list into the hardware.
> If we run out of VLAN credits or encounter a failure configuring an
> entry, fall back to accepting all VLANs.
> If we successfully configure all entries from the list, turn the
> fallback off.
> - Use the same code for reconfiguring VLANs during NIC load.
>
> Signed-off-by: Michal Schmidt <mschmidt@...hat.com>
Applied, thanks.
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