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Commit bbb18b97 authored by Mithlesh Thukral's avatar Mithlesh Thukral Committed by Greg Kroah-Hartman
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Staging: sxg: Add checksum control option through ethtool interface 



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

Signed-off-by: default avatarLinSysSoft Sahara Team <saharaproj@linsyssoft.com>
Signed-off-by: default avatarMithlesh Thukral <mithlesh@linsyssoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 7876ce07

drivers/staging/sxg/sxg.c

+13 −11
Original line number Diff line number Diff line
@@ -1486,22 +1486,24 @@ 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)) {

	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)) {

		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(!(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

drivers/staging/sxg/sxg_ethtool.c

+5 −4
Original line number Diff line number Diff line
@@ -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;

}