linux-kernel - Re: [PATCH v5] net: ethernet: add driver for Aurora VLSI NB8800 Ethernet controller

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Date:	Tue, 10 Nov 2015 19:25:40 +0000
From:	Måns Rullgård <mans@...sr.com>
To:	Mason <slash.tmp@...e.fr>
Cc:	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH v5] net: ethernet: add driver for Aurora VLSI NB8800 Ethernet controller

Mason <slash.tmp@...e.fr> writes:

> On 10/11/2015 17:14, Mans Rullgard wrote:
>
>> This adds a driver for the Aurora VLSI NB8800 Ethernet controller.
>> It is an almost complete rewrite of a driver originally found in
>> a Sigma Designs 2.6.22 tree.
>> 
>> Signed-off-by: Mans Rullgard <mans@...sr.com>
>> ---
>> Changes:
>> - Refactored mdio access functions
>> - Refactored register access helpers
>> - Improved error handling in rx buffer allocation
>> - Optimised some fifo parameters
>> - Overhauled tx dma. Multiple packets are now chained in a single dma
>>   operation if xmit_more is set, improving performance.
>> - Improved rx irq handling. It's not possible to disable interrupts
>>   entirely for napi poll, but they can be slowed down a little.
>> - Use readx_poll_timeout in various places
>> - Improved error detection
>> - Improved statistics
>> - Report hardware statistics counters through ethtool
>> - Improved tangox-specific setup
>> - Support for flow control using pause frames
>> - Explanatory comments added
>> - Various minor stylistic changes
>> ---
>>  drivers/net/ethernet/Kconfig         |    1 +
>>  drivers/net/ethernet/Makefile        |    1 +
>>  drivers/net/ethernet/aurora/Kconfig  |   20 +
>>  drivers/net/ethernet/aurora/Makefile |    1 +
>>  drivers/net/ethernet/aurora/nb8800.c | 1530 ++++++++++++++++++++++++++++++++++
>>  drivers/net/ethernet/aurora/nb8800.h |  314 +++++++
>>  6 files changed, 1867 insertions(+)
>
> The code has grown much since the previous patch, despite some
> refactoring. Is this mostly due to ethtool_ops support?
>
>  drivers/net/ethernet/aurora/nb8800.c | 1146 ++++++++++++++++++++++++++++++++++
>  drivers/net/ethernet/aurora/nb8800.h |  230 +++++++

Some of the increase is from new features, some from improvements, and
then there are a bunch of new comments.

-- 
Måns Rullgård
mans@...sr.com
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