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Message-ID: <08319f88-36a9-445a-9920-ad1fba666b6a@baylibre.com>
Date: Thu, 18 Apr 2024 13:17:47 +0200
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Subject: Re: [PATCH net-next v9 0/3] Add minimal XDP support to TI AM65 CPSW
 Ethernet driver
To: Siddharth Vadapalli <s-vadapalli@ti.com>,
 "David S. Miller" <davem@davemloft.net>, Eric Dumazet <edumazet@google.com>,
 Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
 Russell King <linux@armlinux.org.uk>, Alexei Starovoitov <ast@kernel.org>,
 Daniel Borkmann <daniel@iogearbox.net>,
 Jesper Dangaard Brouer <hawk@kernel.org>,
 John Fastabend <john.fastabend@gmail.com>,
 Sumit Semwal <sumit.semwal@linaro.org>,
 =?UTF-8?Q?Christian_K=C3=B6nig?= <christian.koenig@amd.com>,
 Simon Horman <horms@kernel.org>, Andrew Lunn <andrew@lunn.ch>,
 Ratheesh Kannoth <rkannoth@marvell.com>,
 Naveen Mamindlapalli <naveenm@marvell.com>,
 Jacob Keller <jacob.e.keller@intel.com>
Cc: danishanwar@ti.com, yuehaibing@huawei.com, rogerq@kernel.org,
 netdev@vger.kernel.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org,
 linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org,
 linaro-mm-sig@lists.linaro.org
References: <20240223-am65-cpsw-xdp-basic-v9-0-2c194217e325@baylibre.com>
 <260d258f-87a1-4aac-8883-aab4746b32d8@ti.com>
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From: Julien Panis <jpanis@baylibre.com>
In-Reply-To: <260d258f-87a1-4aac-8883-aab4746b32d8@ti.com>
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On 4/18/24 13:00, Siddharth Vadapalli wrote:
> On 12-04-2024 21:08, Julien Panis wrote:
>> This patch adds XDP support to TI AM65 CPSW Ethernet driver.
>>
>> The following features are implemented: NETDEV_XDP_ACT_BASIC,
>> NETDEV_XDP_ACT_REDIRECT, and NETDEV_XDP_ACT_NDO_XMIT.
>>
>> Zero-copy and non-linear XDP buffer supports are NOT implemented.
>>
>> Besides, the page pool memory model is used to get better performance.
>>
>> Signed-off-by: Julien Panis <jpanis@baylibre.com>
> Hello Julien,
>
> This series crashes Linux on AM62ax SoC which also uses the
> AM65-CPSW-NUSS driver:
> https://gist.github.com/Siddharth-Vadapalli-at-TI/5ed0e436606001c247a7da664f75edee
>
> Regards,
> Siddharth.

Hello Siddharth.

Thanks for the log. I can read:
[    1.966094] Missing net_device from driver

Did you check that nodes exist in the device tree for the net devices ?

Julien