Messages in this thread | | | Date | Fri, 01 Jun 2001 09:15:37 -0400 | From | Jeff Garzik <> | Subject | Re: [PATCH] support for Cobalt Networks (x86 only) systems (forrealthis |
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Bogdan Costescu wrote: > No way! If I implement a HA application which depends on link status, I > want the info to be accurate, I don't want to know that 30 seconds ago I > had good link.
To tangent a little bit, and add netdev to the CC...
The loss and regain of link status should be proactively signalled to userspace using netlink or something similar. Currently we have netif_carrier_{on,off,ok} but it is only passively checked. netif_carrier_{on,off} should probably schedule_task() to fire off a netlink message...
For your HA application specifically, right now, I would suggest making sure your net driver calls netif_carrier_xxx correctly, then checking for IFF_RUNNING interface flag. IFF_RUNNING will disappear if the interface is up, but there is no carrier [as according to netif_carrier_ok].
-- Jeff Garzik | Disbelief, that's why you fail. Building 1024 | MandrakeSoft | - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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