[PATCH] msm: rmnet: msm rmnet smd virtual ethernet driver

nvishwan at codeaurora.org nvishwan at codeaurora.org
Tue Dec 21 18:45:45 EST 2010


> On Wed, 15 Dec 2010 10:31:06 -0800
> Niranjana Vishwanathapura <nvishwan at codeaurora.org> wrote:
>
>> +
>> +static DECLARE_TASKLET(smd_net_data_tasklet, smd_net_data_handler, 0);
>> +
>> +static void smd_net_notify(void *_dev, unsigned event)
>> +{
>> +	if (event != SMD_EVENT_DATA)
>> +		return;
>> +
>> +	smd_net_data_tasklet.data = (unsigned long) _dev;
>> +
>> +	tasklet_schedule(&smd_net_data_tasklet);
>> +}
>> +
>
> Rather than having private tasklet, maybe using NAPI
> would be better?
>
> Also since you are already in tasklet, no need to call netif_rx()
> when receiving packet; instead use netif_receive_skb directly.
>
> --
>

NAPI will not buy much as the SMD transport doesn't provide a machanism to
stop interrupts.  I will consider using NAPI in the future (it requires
performance testing on lot of different targets).

However, I can replace netif_rx() by netif_receive_skb() and send out new
patch




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