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Re: [BUG?] bonding, slave selection, carrier loss, etc. |
On 02/11/2012 12:52 PM, Ben Hutchings wrote:
On Fri, 2012-02-10 at 17:53 -0800, Jay Vosburgh wrote:Chris Friesen<chris.friesen@xxxxxxxxxxx> wrote:
The best solution would be for bonding to just register for notification of the link going down. Presumably most drivers should be doing that properly by now, and for devices that get interrupt-driven notification of link status changes this would allow the bonding code to react much quicker.A quick look at some drivers shows that at least acenic still doesn't do netif_carrier_off, so converting entirely to a notifier-based failover mechanism would break drivers that work today.[...] It might be worth having some sort of feature flag (in priv_flags) that indicates whether the driver updates the link state. Alternately, disable polling of a device once you see a notification.
This makes a lot of sense to me...it is suboptimal to still be polling when most people that care about bonding reliability are going to be using ethernet hardware with interrupt-based link change notification.
Chris -- Chris Friesen Software Developer GENBAND chris.friesen@xxxxxxxxxxx www.genband.com -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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