linux-kernel - Re: [PATCH net-next v8 0/4] net: Add Keystone NetCP ethernet driver support

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Message-ID: <54C91328.6030208@ti.com>
Date:	Wed, 28 Jan 2015 11:49:44 -0500
From:	Murali Karicheri <m-karicheri2@...com>
To:	Arnd Bergmann <arnd@...db.de>
CC:	David Miller <davem@...emloft.net>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>
Subject: Re: [PATCH net-next v8 0/4] net: Add Keystone NetCP ethernet driver
 support

On 01/27/2015 05:28 PM, Arnd Bergmann wrote:
> On Tuesday 20 January 2015 10:53:36 Murali Karicheri wrote:
>> On 01/19/2015 03:11 PM, David Miller wrote:
>>> From: Murali Karicheri<m-karicheri2@...com>
>>> Date: Thu, 15 Jan 2015 19:10:03 -0500
>>>
>>>> The Network Coprocessor (NetCP) is a hardware accelerator that processes
>>>> Ethernet packets. NetCP has a gigabit Ethernet (GbE) subsystem with a ethernet
>>>> switch sub-module to send and receive packets. NetCP also includes a packet
>>>> accelerator (PA) module to perform packet classification operations such as
>>>> header matching, and packet modification operations such as checksum
>>>> generation. NetCP can also optionally include a Security Accelerator(SA)
>>>> capable of performing IPSec operations on ingress/egress packets.
>>>>
>>>> Keystone SoC's also have a 10 Gigabit Ethernet Subsystem (XGbE) which
>>>> includes a 3-port Ethernet switch sub-module capable of 10Gb/s and
>>>> 1Gb/s rates per Ethernet port.
>>>>
>>>> Both GBE and XGBE network processors supported using common driver. It
>>>> is also designed to handle future variants of NetCP.
>>>
>>> Series applied to net-next, thanks.
>> David,
>>
>> Thanks a lot for applying this series. This helps us move forward to
>> work on the next set of patches.
>
> Hi Murali,
>
> Building an ARM 'allmodconfig' kernel now runs into two separate problems
> from your driver:
>
> - you have two module_init() instances in one module, which conflict.
>
> - you have two files that are linked into more than one module, so building
>    both TI_CPSW and TI_KEYSTONE_NETCP in the same kernel fails.
>
> The answer to both of these is probably to have separate loadable modules,
> but you might be able to come up with a different solution.
Arnd,

Thanks for letting us know. We will look into this.

How do I reproduce this? Is there a defconfig used for allmodconfig? I 
am unable to find one. Any details to reproduce this will be useful.

Thanks.

Murali
>
> 	Arnd


-- 
Murali Karicheri
Linux Kernel, Texas Instruments
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