netdev - Re: [PATCH net] ibmvnic: Wait for device response when changing MAC

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Message-Id: <20180129.180344.453718428801787041.davem@davemloft.net>
Date:   Mon, 29 Jan 2018 18:03:44 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     tlfalcon@...ux.vnet.ibm.com
Cc:     netdev@...r.kernel.org, nfont@...ux.vnet.ibm.com,
        jallen@...ux.vnet.ibm.com
Subject: Re: [PATCH net] ibmvnic: Wait for device response when changing MAC

From: Thomas Falcon <tlfalcon@...ux.vnet.ibm.com>
Date: Mon, 29 Jan 2018 13:45:05 -0600

> Wait for a response from the VNIC server before exiting after setting
> the MAC address. The resolves an issue with bonding a VNIC client in
> ALB or TLB modes. The bonding driver was changing the MAC address more
> rapidly than the device could respond, causing the following errors.
> 
> "bond0: the hw address of slave eth2 is in use by the bond;
> couldn't find a slave with a free hw address to give it
> (this should not have happened)"
> 
> If the function waits until the change is finalized, these errors are
> avoided.
> 
> Signed-off-by: Thomas Falcon <tlfalcon@...ux.vnet.ibm.com>

Applied, thanks Thomas.