patchlwIP - A Lightweight TCP/IP stack - Patches: patch #9798, IGMP and MLD6 Timers on demand

 
 

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patch #9798: IGMP and MLD6 Timers on demand

Submitted by:  Sachin Parekh <sachin0x18>
Submitted on:  Mon 22 Apr 2019 02:07:11 PM UTC
 
Category:  Contrib Priority:  5 - Normal
Status:  None Privacy:  Public
Assigned to:  None Open/Closed:  Open
Planned Release:  None
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Mon 22 Apr 2019 02:07:11 PM UTC, original submission:  

The thought behind this patch is to reduce power consumption when running in low power mode.

The current implementation of IGMP and MLD6 Timer is that they are periodically fired at an interval of 100ms each.

Timer interrupt is called when the timeout expires. The timer interrupt function checks if there are any multicast group timeout running, if so then decrement the timeout value and if it reaches zero then send an appropriate report packet on the network.

The timer restarts itself even if there are no multicast group timeouts. This leads to increase in power consumption. Starting the timer only when receiving a QUERY packet or joining a group will reduce the power consumption.

Sachin Parekh <sachin0x18>

 

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    Follows 1 latest change.

    Date Changed by Updated Field Previous Value => Replaced by
    2019-04-22 sachin0x18 Attached File- => Added 0001-igmp-Option-for-IGMP-Timer-to-be-called-ondemand-dyn.patch, #46810

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