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Subject: Re: No networking due to "net/mlx5e: Add support for devlink-port in
 non-representors mode"
From:   Qian Cai <cai@lca.pw>
In-Reply-To: <52874e86-a8ae-dcf0-a798-a10e8c97d09e@mellanox.com>
Date:   Wed, 25 Mar 2020 16:25:17 -0400
Cc:     Vladyslav Tarasiuk <vladyslavt@mellanox.com>,
        Jiri Pirko <jiri@mellanox.com>,
        Saeed Mahameed <saeedm@mellanox.com>,
        Parav Pandit <parav@mellanox.com>,
        "David S. Miller" <davem@davemloft.net>, netdev@vger.kernel.org,
        LKML <linux-kernel@vger.kernel.org>
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Message-Id: <483B11FF-4004-4909-B89A-06CA48E3BBBC@lca.pw>
References: <0DF043A6-F507-4CB4-9764-9BD472ABCF01@lca.pw>
 <52874e86-a8ae-dcf0-a798-a10e8c97d09e@mellanox.com>
To:     Moshe Shemesh <moshe@mellanox.com>
Sender: linux-kernel-owner@vger.kernel.org
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> On Mar 25, 2020, at 3:33 PM, Moshe Shemesh <moshe@mellanox.com> wrote:
>=20
>=20
> On 3/25/2020 6:01 AM, Qian Cai wrote:
>> Reverted the linux-next commit c6acd629ee (=E2=80=9Cnet/mlx5e: Add =
support for devlink-port in non-representors mode=E2=80=9D)
>> and its dependencies,
>>=20
>> 162add8cbae4 (=E2=80=9Cnet/mlx5e: Use devlink virtual flavour for VF =
devlink port=E2=80=9D)
>> 31e87b39ba9d (=E2=80=9Cnet/mlx5e: Fix devlink port register =
sequence=E2=80=9D)
>>=20
>> on the top of next-20200324 allowed NICs to obtain an IPv4 address =
from DHCP again.
>=20
>=20
> These patches should not interfere DHCP.
>=20
> You might have dependencies on interface name which was changed by =
this patch, please check.


Yes,

Before,
[  238.225149][ T2021] mlx5_core 0000:0b:00.1 enp11s0f1: renamed from =
eth1
[  238.511324][ T2035] mlx5_core 0000:0b:00.0 enp11s0f0: renamed from =
eth0

Now,
[  234.448420][ T2013] mlx5_core 0000:0b:00.1 enp11s0f1np1: renamed from =
eth1
[  234.664236][ T2042] mlx5_core 0000:0b:00.0 enp11s0f0np0: renamed from =
eth0

>=20
>> 0b:00.0 Ethernet controller: Mellanox Technologies MT27710 Family =
[ConnectX-4 Lx]
>> 0b:00.1 Ethernet controller: Mellanox Technologies MT27710 Family =
[ConnectX-4 Lx]
>>=20
>> [  223.280777][   T13] mlx5_core 0000:0b:00.0: firmware version: =
14.21.1000
>> [  223.287753][   T13] mlx5_core 0000:0b:00.0: 63.008 Gb/s available =
PCIe bandwidth (8.0 GT/s PCIe x8 link)
>> [  226.292153][    C0] mlx5_core 0000:0b:00.0: Port module event: =
module 0, Cable plugged
>> [  226.874100][ T2023] mlx5_core 0000:0b:00.1: Adding to iommu group =
2
>> [  227.343553][   T13] mlx5_core 0000:0b:00.1: firmware version: =
14.21.1000
>> [  227.350467][   T13] mlx5_core 0000:0b:00.1: 63.008 Gb/s available =
PCIe bandwidth (8.0 GT/s PCIe x8 link)
>> [  230.026346][    C0] mlx5_core 0000:0b:00.1: Port module event: =
module 1, Cable unplugged
>> [  230.522660][ T2023] mlx5_core 0000:0b:00.0: MLX5E: StrdRq(0) =
RqSz(1024) StrdSz(256) RxCqeCmprss(0)
>> [  231.448493][ T2023] mlx5_core 0000:0b:00.1: MLX5E: StrdRq(0) =
RqSz(1024) StrdSz(256) RxCqeCmprss(0)
>> [  232.436993][ T2007] mlx5_core 0000:0b:00.1 enp11s0f1np1: renamed =
from eth1
>> [  232.690895][ T2013] mlx5_core 0000:0b:00.0 enp11s0f0np0: renamed =
from eth0