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Commit 01ef7e05 authored by Sudarsana Kalluru's avatar Sudarsana Kalluru Committed by David S. Miller
Browse files

qede: Add support for {get, set}_ringparam 



Signed-off-by: default avatarSudarsana Kalluru <Sudarsana.Kalluru@qlogic.com>
Signed-off-by: default avatarYuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8edf049d

drivers/net/ethernet/qlogic/qede/qede.h

+2 −2
Original line number Diff line number Diff line
@@ -270,13 +270,13 @@ int qede_change_mtu(struct net_device *dev, int new_mtu); 
void qede_fill_by_demand_stats(struct qede_dev *edev);



#define RX_RING_SIZE_POW	13

#define RX_RING_SIZE		BIT(RX_RING_SIZE_POW)

#define RX_RING_SIZE		((u16)BIT(RX_RING_SIZE_POW))

#define NUM_RX_BDS_MAX		(RX_RING_SIZE - 1)

#define NUM_RX_BDS_MIN		128

#define NUM_RX_BDS_DEF		NUM_RX_BDS_MAX



#define TX_RING_SIZE_POW	13

#define TX_RING_SIZE		BIT(TX_RING_SIZE_POW)

#define TX_RING_SIZE		((u16)BIT(TX_RING_SIZE_POW))

#define NUM_TX_BDS_MAX		(TX_RING_SIZE - 1)

#define NUM_TX_BDS_MIN		128

#define NUM_TX_BDS_DEF		NUM_TX_BDS_MAX

drivers/net/ethernet/qlogic/qede/qede_ethtool.c

+44 −0
Original line number Diff line number Diff line
@@ -333,6 +333,48 @@ static u32 qede_get_link(struct net_device *dev) 
	return current_link.link_up;

}



static void qede_get_ringparam(struct net_device *dev,

			       struct ethtool_ringparam *ering)

{

	struct qede_dev *edev = netdev_priv(dev);



	ering->rx_max_pending = NUM_RX_BDS_MAX;

	ering->rx_pending = edev->q_num_rx_buffers;

	ering->tx_max_pending = NUM_TX_BDS_MAX;

	ering->tx_pending = edev->q_num_tx_buffers;

}



static int qede_set_ringparam(struct net_device *dev,

			      struct ethtool_ringparam *ering)

{

	struct qede_dev *edev = netdev_priv(dev);



	DP_VERBOSE(edev, (NETIF_MSG_IFUP | NETIF_MSG_IFDOWN),

		   "Set ring params command parameters: rx_pending = %d, tx_pending = %d\n",

		   ering->rx_pending, ering->tx_pending);



	/* Validate legality of configuration */

	if (ering->rx_pending > NUM_RX_BDS_MAX ||

	    ering->rx_pending < NUM_RX_BDS_MIN ||

	    ering->tx_pending > NUM_TX_BDS_MAX ||

	    ering->tx_pending < NUM_TX_BDS_MIN) {

		DP_VERBOSE(edev, (NETIF_MSG_IFUP | NETIF_MSG_IFDOWN),

			   "Can only support Rx Buffer size [0%08x,...,0x%08x] and Tx Buffer size [0x%08x,...,0x%08x]\n",

			   NUM_RX_BDS_MIN, NUM_RX_BDS_MAX,

			   NUM_TX_BDS_MIN, NUM_TX_BDS_MAX);

		return -EINVAL;

	}



	/* Change ring size and re-load */

	edev->q_num_rx_buffers = ering->rx_pending;

	edev->q_num_tx_buffers = ering->tx_pending;



	if (netif_running(edev->ndev))

		qede_reload(edev, NULL, NULL);



	return 0;

}



static void qede_update_mtu(struct qede_dev *edev, union qede_reload_args *args)

{

	edev->ndev->mtu = args->mtu;
@@ -424,6 +466,8 @@ static const struct ethtool_ops qede_ethtool_ops = { 
	.get_msglevel = qede_get_msglevel,

	.set_msglevel = qede_set_msglevel,

	.get_link = qede_get_link,

	.get_ringparam = qede_get_ringparam,

	.set_ringparam = qede_set_ringparam,

	.get_strings = qede_get_strings,

	.get_ethtool_stats = qede_get_ethtool_stats,

	.get_sset_count = qede_get_sset_count,