netdev - Re: [PATCH 1/1] bonding: Use notifiers for slave link state detection

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Date:	Fri, 29 Jan 2016 15:05:55 +0800
From:	zhuyj <zyjzyj2000@...il.com>
To:	Jay Vosburgh <jay.vosburgh@...onical.com>
Cc:	mkubecek@...e.cz, vfalico@...il.com, gospo@...ulusnetworks.com,
	netdev@...r.kernel.org, boris.shteinbock@...driver.com,
	emil.s.tantilov@...el.com, zhuyj <zyjzyj2000@...il.com>
Subject: Re: [PATCH 1/1] bonding: Use notifiers for slave link state detection

Thanks a lot.

Maybe this patch is to miimon and notifier. Maybe it is not appropriate to arp monitor.
So the following patch will avoid arp monitor.

Thanks a lot.

Zhu Yanjun

+	/* Because of link flap from the slave interface, it is possilbe that
+	 * the notifiler is NETDEV_UP while the actual link state is down. If
+	 * so, it is not necessary to contiune.
+	 */
+	if (!bond->params.arp_interval) {
+		switch (event) {
+		case NETDEV_UP:
+			if (!link_state)
+				return 0;
+			break;
+
+		case NETDEV_DOWN:
+			if (link_state)
+				return 0;
+			break;
+		}
+	}


On 01/26/2016 02:00 PM, Jay Vosburgh wrote:
> +	/* Because of link flap from the slave interface, it is possilbe that
> +	 * the notifiler is NETDEV_UP while the actual link state is down. If
> +	 * so, it is not necessary to contiune.
> +	 */
> +	switch (event) {
> +	case NETDEV_UP:
> +		if (!link_state)
> +			return 0;
> +		break;
> +
> +	case NETDEV_DOWN:
> +		if (link_state)
> +			return 0;
> +		break;
> +	}
> +