[U-Boot] [PATCH v2 02/11] x86: Move ipchecksum into common area and rename it

Bin Meng bmeng.cn at gmail.com
Sun Jan 11 03:44:59 CET 2015


Hi Simon,

On Sun, Jan 11, 2015 at 1:20 AM, Simon Glass <sjg at chromium.org> wrote:
> Hi Bin,
>
> On 10 January 2015 at 08:47, Bin Meng <bmeng.cn at gmail.com> wrote:
>> Hi Simon,
>>
>> On Fri, Jan 9, 2015 at 11:30 AM, Simon Glass <sjg at chromium.org> wrote:
>>> The existing IP checksum function is only accessible to the 'coreboot' cpu.
>>> Move it into the common area and rename it slightly to remove the
>>> abbreviations.
>>>
>>> Signed-off-by: Simon Glass <sjg at chromium.org>
>>> ---
>>>
>>> Changes in v2:
>>> - Refactor IP checksum patches
>>>
>>>  arch/x86/cpu/Makefile                           |  1 +
>>>  arch/x86/cpu/coreboot/Makefile                  |  1 -
>>>  arch/x86/cpu/coreboot/ipchecksum.c              | 55 -------------------------
>>>  arch/x86/cpu/coreboot/tables.c                  |  8 ++--
>>>  arch/x86/cpu/ip_checksum.c                      | 34 +++++++++++++++
>>
>> What about the namings we discussed in the v1 patch thread? ip_xxx
>> indicates ip protocol, but acutally they are not.
>
> Is it not? This is not actually CMOS-specific - e.g. it is used by
> Coreboot to send data through to U-Boot in the tables it provides.
>
> I thought it was an IP checksum...
>

OK, so you mean coreboot is using the same IP checksum algorithm to
generate checksums for coreboot tables to be passed to U-Boot. If that
is the case, I think we should put the these files to u-boot/net or
u-boot/lib. Are there existing codes that we can reuse?

Regards,
Bin


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