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amd-xgbe: Add ethtool show/set channels support

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Add ethtool support to show and set the device channel configuration.
Changing the channel configuration will result in a device restart.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tom Lendacky
2018-05-23 11:39:13 -05:00
committed by David S. Miller
parent 2244753409
commit 01b5277fc9
3 changed files with 163 additions and 0 deletions
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25
drivers/net/ethernet/amd/xgbe/xgbe-drv.c
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@@ -1329,6 +1329,17 @@ static int xgbe_alloc_memory(struct xgbe_prv_data *pdata)
struct net_device *netdev = pdata->netdev;
int ret;
if (pdata->new_tx_ring_count) {
pdata->tx_ring_count = pdata->new_tx_ring_count;
pdata->tx_q_count = pdata->tx_ring_count;
pdata->new_tx_ring_count = 0;
}
if (pdata->new_rx_ring_count) {
pdata->rx_ring_count = pdata->new_rx_ring_count;
pdata->new_rx_ring_count = 0;
}
/* Calculate the Rx buffer size before allocating rings */
pdata->rx_buf_size = xgbe_calc_rx_buf_size(netdev, netdev->mtu);
@@ -1482,6 +1493,20 @@ static void xgbe_stopdev(struct work_struct *work)
netdev_alert(pdata->netdev, "device stopped\n");
}
void xgbe_full_restart_dev(struct xgbe_prv_data *pdata)
{
/* If not running, "restart" will happen on open */
if (!netif_running(pdata->netdev))
return;
xgbe_stop(pdata);
xgbe_free_memory(pdata);
xgbe_alloc_memory(pdata);
xgbe_start(pdata);
}
void xgbe_restart_dev(struct xgbe_prv_data *pdata)
{
/* If not running, "restart" will happen on open */