[PATCH net-next v2 0/7] korina: performance fixes and cleanup

[PATCH net-next v2 0/7] korina: performance fixes and cleanup

[Roman Yeryomin]

Changes from v1:
- use GRO instead of increasing ring size
- use NAPI_POLL_WEIGHT instead of defining own NAPI_WEIGHT
- optimize rx descriptor flags processing

Roman Yeryomin (7):
  net: korina: don't use overflow and underflow interrupts
  net: korina: optimize rx descriptor flags processing
  net: korina: use NAPI_POLL_WEIGHT
  net: korina: use GRO
  net: korina: whitespace cleanup
  net: korina: update authors
  net: korina: bump version

 drivers/net/ethernet/korina.c | 230 ++++++++++++++----------------------------
 1 file changed, 78 insertions(+), 152 deletions(-)

-- 
2.11.0

Re: [PATCH net-next v2 0/7] korina: performance fixes and cleanup

[Florian Fainelli]

On 09/17/2017 10:23 AM, Roman Yeryomin wrote:
> Changes from v1:
> - use GRO instead of increasing ring size
> - use NAPI_POLL_WEIGHT instead of defining own NAPI_WEIGHT
> - optimize rx descriptor flags processing

net-next is closed at the moment, but these look like reasonable
changes, I would just replace patch 7 with a patch that entirely drops
the driver specific version since that does not serve any purpose in the
context of an in-kernel driver.

Some nice clean-ups that you should also consider for future changes:

- reduce the duplication of tests/conditions in korina_send_packet(), a
lot of them are testing for the same things and setting the same
descriptor bits

- move korina_tx() to a NAPI context instead of working from hard
interrupt context

- get rid of the MIPS dma_cache_* calls and instead properly use the
DMA-API to allocate descriptors and invalidate/write-back skb->data

> 
> Roman Yeryomin (7):
>   net: korina: don't use overflow and underflow interrupts
>   net: korina: optimize rx descriptor flags processing
>   net: korina: use NAPI_POLL_WEIGHT
>   net: korina: use GRO
>   net: korina: whitespace cleanup
>   net: korina: update authors
>   net: korina: bump version
> 
>  drivers/net/ethernet/korina.c | 230 ++++++++++++++----------------------------
>  1 file changed, 78 insertions(+), 152 deletions(-)
> 

-- 
Florian

Re: [PATCH net-next v2 0/7] korina: performance fixes and cleanup

[Roman Yeryomin]

On 17 September 2017 at 23:09, Florian Fainelli <f.fainelli@gmail.com> wrote:
>
>
> On 09/17/2017 10:23 AM, Roman Yeryomin wrote:
>> Changes from v1:
>> - use GRO instead of increasing ring size
>> - use NAPI_POLL_WEIGHT instead of defining own NAPI_WEIGHT
>> - optimize rx descriptor flags processing
>
> net-next is closed at the moment, but these look like reasonable
> changes, I would just replace patch 7 with a patch that entirely drops
> the driver specific version since that does not serve any purpose in the
> context of an in-kernel driver.

OK

> Some nice clean-ups that you should also consider for future changes:
>
> - reduce the duplication of tests/conditions in korina_send_packet(), a
> lot of them are testing for the same things and setting the same
> descriptor bits

Already doing that :)

> - move korina_tx() to a NAPI context instead of working from hard
> interrupt context
>
> - get rid of the MIPS dma_cache_* calls and instead properly use the
> DMA-API to allocate descriptors and invalidate/write-back skb->data

OK

>>
>> Roman Yeryomin (7):
>>   net: korina: don't use overflow and underflow interrupts
>>   net: korina: optimize rx descriptor flags processing
>>   net: korina: use NAPI_POLL_WEIGHT
>>   net: korina: use GRO
>>   net: korina: whitespace cleanup
>>   net: korina: update authors
>>   net: korina: bump version
>>
>>  drivers/net/ethernet/korina.c | 230 ++++++++++++++----------------------------
>>  1 file changed, 78 insertions(+), 152 deletions(-)
>>
>
> --
> Florian

Re: [PATCH net-next v2 0/7] korina: performance fixes and cleanup

[Roman Yeryomin]

On 18 September 2017 at 16:02, Roman Yeryomin <leroi.lists@gmail.com> wrote:
> On 17 September 2017 at 23:09, Florian Fainelli <f.fainelli@gmail.com> wrote:
>>
>>
>> On 09/17/2017 10:23 AM, Roman Yeryomin wrote:
>>> Changes from v1:
>>> - use GRO instead of increasing ring size
>>> - use NAPI_POLL_WEIGHT instead of defining own NAPI_WEIGHT
>>> - optimize rx descriptor flags processing
>>
>> net-next is closed at the moment, but these look like reasonable
>> changes, I would just replace patch 7 with a patch that entirely drops
>> the driver specific version since that does not serve any purpose in the
>> context of an in-kernel driver.
>
> OK
>

Oh, wait, forgot we've been here already.
What about ethtool_drvinfo?
Or you mean drop all ethtool helpers?

Regards,
Roman

Re: [PATCH net-next v2 0/7] korina: performance fixes and cleanup

[David Miller]

From: Roman Yeryomin <leroi.lists@gmail.com>
Date: Sun, 17 Sep 2017 20:23:53 +0300

> Changes from v1:
> - use GRO instead of increasing ring size
> - use NAPI_POLL_WEIGHT instead of defining own NAPI_WEIGHT
> - optimize rx descriptor flags processing

Series applied, thank you.