Re: [PATCH net-next 2/2] hv_netvsc: Implement set_channels ethtool op

From: David Miller
Date: Wed Aug 12 2015 - 17:46:04 EST

From: Andrew Schwartzmeyer <andschwa@xxxxxxxxxxxxx>
Date: Tue, 11 Aug 2015 17:14:32 -0700

> This enables the use of ethtool --set-channels devname combined N to
> change the number of vRSS queues. Separate rx, tx, and other parameters
> are not supported. The maximum is rsscap.num_recv_que. It passes the
> given value to rndis_filter_device_add through the device_info->num_chn
> field.
> If the procedure fails, it attempts to recover to the prior state. If
> the recovery fails, it logs an error and aborts.
> Current num_chn is saved and restored when changing the MTU.
> Signed-off-by: Andrew Schwartzmeyer <andschwa@xxxxxxxxxxxxx>

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