netdev - Re: [PATCH] vmxnet3: fix netpoll race condition

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Date:	Sat, 8 Mar 2014 09:36:59 -0500
From:	Neil Horman <nhorman@...driver.com>
To:	Shreyas Bhatewara <sbhatewara@...are.com>
Cc:	netdev@...r.kernel.org, "VMware, Inc." <pv-drivers@...are.com>,
	"David S. Miller" <davem@...emloft.net>, stable@...r.kernel.org
Subject: Re: [PATCH] vmxnet3: fix netpoll race condition

On Fri, Mar 07, 2014 at 09:14:21PM -0800, Shreyas Bhatewara wrote:
> Thanks for the patch Neil. 
> 
> 
> > --- a/drivers/net/vmxnet3/vmxnet3_drv.c
> > +++ b/drivers/net/vmxnet3/vmxnet3_drv.c
> > @@ -1762,11 +1762,13 @@ vmxnet3_netpoll(struct net_device *netdev)
> >  {
> >  	struct vmxnet3_adapter *adapter = netdev_priv(netdev);
> >  
> > -	if (adapter->intr.mask_mode == VMXNET3_IMM_ACTIVE)
> > -		vmxnet3_disable_all_intrs(adapter);
> > -
> > -	vmxnet3_do_poll(adapter, adapter->rx_queue[0].rx_ring[0].size);
> > -	vmxnet3_enable_all_intrs(adapter);
> > +	switch (adapter->intr.type) {
> > +	case VMXNET3_IT_MSIX:
> > +		vmxnet3_msix_rx(0, &adapter->rx_queue[0]);
> 
> This should be called for each rx queue, just calling it for
> 1st queue does not suffice.
You're right, I'll fix that up.

> Also there should be a break; here
> 
that too. thanks
Neil

> 
> > +	case VMXNET3_IT_MSI:
> > +	default:
> > +		vmxnet3_intr(0, adapter->netdev);
> > +	}
> 
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