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Date: Fri, 15 Apr 2011 16:50:49 +0200 (CEST)
From: Michał Mirosław <mirq-linux@...e.qmqm.pl>
To: netdev@...r.kernel.org
Cc: Ben Dooks <ben-linux@...ff.org>,
Henry Nestler <henry.nestler@...il.com>
Subject: [PATCH] net: dm9000: convert to hw_features
Signed-off-by: Michał Mirosław <mirq-linux@...e.qmqm.pl>
---
drivers/net/dm9000.c | 57 +++++++++++--------------------------------------
1 files changed, 13 insertions(+), 44 deletions(-)
diff --git a/drivers/net/dm9000.c b/drivers/net/dm9000.c
index b7af5ba..f7bdebb 100644
--- a/drivers/net/dm9000.c
+++ b/drivers/net/dm9000.c
@@ -131,8 +131,6 @@ typedef struct board_info {
u32 msg_enable;
u32 wake_state;
- int rx_csum;
- int can_csum;
int ip_summed;
} board_info_t;
@@ -470,47 +468,20 @@ static int dm9000_nway_reset(struct net_device *dev)
return mii_nway_restart(&dm->mii);
}
-static uint32_t dm9000_get_rx_csum(struct net_device *dev)
+static int dm9000_set_features(struct net_device *dev, u32 features)
{
board_info_t *dm = to_dm9000_board(dev);
- return dm->rx_csum;
-}
-
-static int dm9000_set_rx_csum_unlocked(struct net_device *dev, uint32_t data)
-{
- board_info_t *dm = to_dm9000_board(dev);
-
- if (dm->can_csum) {
- dm->rx_csum = data;
- iow(dm, DM9000_RCSR, dm->rx_csum ? RCSR_CSUM : 0);
+ u32 changed = dev->features ^ features;
+ unsigned long flags;
+ if (!(changed & NETIF_F_RXCSUM))
return 0;
- }
-
- return -EOPNOTSUPP;
-}
-
-static int dm9000_set_rx_csum(struct net_device *dev, uint32_t data)
-{
- board_info_t *dm = to_dm9000_board(dev);
- unsigned long flags;
- int ret;
spin_lock_irqsave(&dm->lock, flags);
- ret = dm9000_set_rx_csum_unlocked(dev, data);
+ iow(dm, DM9000_RCSR, (features & NETIF_F_RXCSUM) ? RCSR_CSUM : 0);
spin_unlock_irqrestore(&dm->lock, flags);
- return ret;
-}
-
-static int dm9000_set_tx_csum(struct net_device *dev, uint32_t data)
-{
- board_info_t *dm = to_dm9000_board(dev);
- int ret = -EOPNOTSUPP;
-
- if (dm->can_csum)
- ret = ethtool_op_set_tx_csum(dev, data);
- return ret;
+ return 0;
}
static u32 dm9000_get_link(struct net_device *dev)
@@ -643,10 +614,6 @@ static const struct ethtool_ops dm9000_ethtool_ops = {
.get_eeprom_len = dm9000_get_eeprom_len,
.get_eeprom = dm9000_get_eeprom,
.set_eeprom = dm9000_set_eeprom,
- .get_rx_csum = dm9000_get_rx_csum,
- .set_rx_csum = dm9000_set_rx_csum,
- .get_tx_csum = ethtool_op_get_tx_csum,
- .set_tx_csum = dm9000_set_tx_csum,
};
static void dm9000_show_carrier(board_info_t *db,
@@ -800,7 +767,9 @@ dm9000_init_dm9000(struct net_device *dev)
db->io_mode = ior(db, DM9000_ISR) >> 6; /* ISR bit7:6 keeps I/O mode */
/* Checksum mode */
- dm9000_set_rx_csum_unlocked(dev, db->rx_csum);
+ if (dev->hw_features & NETIF_F_RXCSUM)
+ iow(dm, DM9000_RCSR,
+ (dev->features & NETIF_F_RXCSUM) ? RCSR_CSUM : 0);
iow(db, DM9000_GPCR, GPCR_GEP_CNTL); /* Let GPIO0 output */
@@ -1049,7 +1018,7 @@ dm9000_rx(struct net_device *dev)
/* Pass to upper layer */
skb->protocol = eth_type_trans(skb, dev);
- if (db->rx_csum) {
+ if (dev->features & NETIF_F_RXCSUM) {
if ((((rxbyte & 0x1c) << 3) & rxbyte) == 0)
skb->ip_summed = CHECKSUM_UNNECESSARY;
else
@@ -1358,6 +1327,7 @@ static const struct net_device_ops dm9000_netdev_ops = {
.ndo_set_multicast_list = dm9000_hash_table,
.ndo_do_ioctl = dm9000_ioctl,
.ndo_change_mtu = eth_change_mtu,
+ .ndo_set_features = dm9000_set_features,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_mac_address = eth_mac_addr,
#ifdef CONFIG_NET_POLL_CONTROLLER
@@ -1551,9 +1521,8 @@ dm9000_probe(struct platform_device *pdev)
/* dm9000a/b are capable of hardware checksum offload */
if (db->type == TYPE_DM9000A || db->type == TYPE_DM9000B) {
- db->can_csum = 1;
- db->rx_csum = 1;
- ndev->features |= NETIF_F_IP_CSUM;
+ ndev->hw_features = NETIF_F_RXCSUM | NETIF_F_IP_CSUM;
+ ndev->features |= ndev->hw_features;
}
/* from this point we assume that we have found a DM9000 */
--
1.7.2.5
--
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