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Staging: sxg: Add checksum control option through ethtool interface

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* This patch adds support for controling checksum feature using the ethtool
  interface.

Signed-off-by: LinSysSoft Sahara Team <saharaproj@linsyssoft.com>
Signed-off-by: Mithlesh Thukral <mithlesh@linsyssoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Mithlesh Thukral 2009-02-24 18:07:59 +05:30 committed by Greg Kroah-Hartman
parent 7876ce07c8
commit bbb18b97f6
2 changed files with 18 additions and 15 deletions
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24
drivers/staging/sxg/sxg.c
View file

@ -1486,23 +1486,25 @@ static int sxg_process_isr(struct adapter_t *adapter, u32 MessageId)
* sxg_rcv_checksum - Set the checksum for received packet
*
* Arguements:
* @adapter - Adapter structure on which packet is received
* @skb - Packet which is receieved
* @Event - Event read from hardware
*/
void sxg_rcv_checksum(struct sk_buff *skb, struct sxg_event *Event)
void sxg_rcv_checksum(struct adapter_t *adapter, struct sk_buff *skb,
struct sxg_event *Event)
{
skb->ip_summed = CHECKSUM_NONE;
if(Event->Status & EVENT_STATUS_TCPIP) {
if(!(Event->Status & EVENT_STATUS_TCPBAD)) {
skb->ip_summed = CHECKSUM_UNNECESSARY;
}
if(!(Event->Status & EVENT_STATUS_IPBAD)) {
skb->ip_summed = CHECKSUM_UNNECESSARY;
}
} else if(Event->Status & EVENT_STATUS_IPONLY) {
if(!(Event->Status & EVENT_STATUS_IPBAD)) {
if (likely(adapter->flags & SXG_RCV_IP_CSUM_ENABLED)) {
if (likely(adapter->flags & SXG_RCV_TCP_CSUM_ENABLED)
&& (Event->Status & EVENT_STATUS_TCPIP)) {
if(!(Event->Status & EVENT_STATUS_TCPBAD))
skb->ip_summed = CHECKSUM_UNNECESSARY;
if(!(Event->Status & EVENT_STATUS_IPBAD))
skb->ip_summed = CHECKSUM_UNNECESSARY;
} else if(Event->Status & EVENT_STATUS_IPONLY) {
if(!(Event->Status & EVENT_STATUS_IPBAD))
skb->ip_summed = CHECKSUM_UNNECESSARY;
}
}
}
@ -1581,7 +1583,7 @@ static u32 sxg_process_event_queue(struct adapter_t *adapter, u32 RssId,
rx_bytes = Event->Length;
adapter->stats.rx_packets++;
adapter->stats.rx_bytes += rx_bytes;
sxg_rcv_checksum(skb, Event);
sxg_rcv_checksum(adapter, skb, Event);
skb->dev = adapter->netdev;
netif_receive_skb(skb);
#endif

9
drivers/staging/sxg/sxg_ethtool.c
View file

@ -221,7 +221,7 @@ static int sxg_nic_get_settings(struct net_device *netdev,
static u32 sxg_nic_get_rx_csum(struct net_device *netdev)
{
struct adapter_t *adapter = netdev_priv(netdev);
return ((adapter->flags & SXG_RCV_IP_CSUM_ENABLED) ||
return ((adapter->flags & SXG_RCV_IP_CSUM_ENABLED) &&
(adapter->flags & SXG_RCV_TCP_CSUM_ENABLED));
}
@ -232,9 +232,10 @@ static int sxg_nic_set_rx_csum(struct net_device *netdev, u32 data)
adapter->flags |= SXG_RCV_IP_CSUM_ENABLED;
else
adapter->flags &= ~SXG_RCV_IP_CSUM_ENABLED;
/* Reset the card here (call the reset functions .. currently unavailable)*/
/*
* We dont need to write to the card to do checksums.
* It does it anyways.
*/
return 0;
}