Commit b68a60e5 authored by Jim Lewis's avatar Jim Lewis Committed by Jeff Garzik
Browse files

[PATCH] Add ethtool -g support to Spidernet network driver 



Add ethtool -g (show ring sizes) support to the Spidernet network driver.

Signed-off-by: default avatarJames K Lewis <jklewis@us.ibm.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent 7e29f8bf

drivers/net/spider_net.c

+7 −5
Original line number Diff line number Diff line
@@ -1611,13 +1611,12 @@ spider_net_open(struct net_device *netdev) 
	int result;



	result = -ENOMEM;

	if (spider_net_init_chain(card, &card->tx_chain,

			card->descr,

			PCI_DMA_TODEVICE, tx_descriptors))

	if (spider_net_init_chain(card, &card->tx_chain, card->descr,

			PCI_DMA_TODEVICE, card->tx_desc))

		goto alloc_tx_failed;

	if (spider_net_init_chain(card, &card->rx_chain,

			card->descr + tx_descriptors,

			PCI_DMA_FROMDEVICE, rx_descriptors))

			card->descr + card->rx_desc,

			PCI_DMA_FROMDEVICE, card->rx_desc))

		goto alloc_rx_failed;



	/* allocate rx skbs */
@@ -2005,6 +2004,9 @@ spider_net_setup_netdev(struct spider_net_card *card) 


	card->options.rx_csum = SPIDER_NET_RX_CSUM_DEFAULT;



	card->tx_desc = tx_descriptors;

	card->rx_desc = rx_descriptors;



	spider_net_setup_netdev_ops(netdev);



	netdev->features = NETIF_F_HW_CSUM | NETIF_F_LLTX;

drivers/net/spider_net.h

+3 −0
Original line number Diff line number Diff line
@@ -440,6 +440,9 @@ struct spider_net_card { 
	/* for ethtool */

	int msg_enable;



	int rx_desc;

	int tx_desc;



	struct spider_net_descr descr[0];

};

drivers/net/spider_net_ethtool.c

+13 −0
Original line number Diff line number Diff line
@@ -130,6 +130,18 @@ spider_net_ethtool_set_tx_csum(struct net_device *netdev, uint32_t data) 
        return 0;

}



static void

spider_net_ethtool_get_ringparam(struct net_device *netdev,

				 struct ethtool_ringparam *ering)

{

	struct spider_net_card *card = netdev->priv;



	ering->tx_max_pending = SPIDER_NET_TX_DESCRIPTORS_MAX;

	ering->tx_pending = card->tx_desc;

	ering->rx_max_pending = SPIDER_NET_RX_DESCRIPTORS_MAX;

	ering->rx_pending = card->rx_desc;

}



struct ethtool_ops spider_net_ethtool_ops = {

	.get_settings		= spider_net_ethtool_get_settings,

	.get_drvinfo		= spider_net_ethtool_get_drvinfo,
@@ -141,5 +153,6 @@ struct ethtool_ops spider_net_ethtool_ops = { 
	.set_rx_csum		= spider_net_ethtool_set_rx_csum,

	.get_tx_csum		= spider_net_ethtool_get_tx_csum,

	.set_tx_csum		= spider_net_ethtool_set_tx_csum,

	.get_ringparam          = spider_net_ethtool_get_ringparam,

};