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yaml
---
r: 289739
b: refs/heads/master
c: afd1293
h: refs/heads/master
i:
  289737: 1f04d2c
  289735: 2eb4ae1
v: v3
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Bruce Allan authored and Jeff Kirsher committed Jan 26, 2012
1 parent 627b164 commit e30c63e
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Showing 2 changed files with 16 additions and 13 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: e55684fadbc5c9c69cad1b3bae228c8374b99b85
refs/heads/master: afd12939a09ca8f96cf8349c913dc143471c9b3c
27 changes: 15 additions & 12 deletions trunk/drivers/net/ethernet/intel/e1000e/netdev.c
Original file line number Diff line number Diff line change
Expand Up @@ -487,22 +487,27 @@ static void e1000_receive_skb(struct e1000_adapter *adapter,

/**
* e1000_rx_checksum - Receive Checksum Offload
* @adapter: board private structure
* @status_err: receive descriptor status and error fields
* @csum: receive descriptor csum field
* @sk_buff: socket buffer with received data
* @adapter: board private structure
* @status_err: receive descriptor status and error fields
* @csum: receive descriptor csum field
* @sk_buff: socket buffer with received data
**/
static void e1000_rx_checksum(struct e1000_adapter *adapter, u32 status_err,
u32 csum, struct sk_buff *skb)
__le16 csum, struct sk_buff *skb)
{
u16 status = (u16)status_err;
u8 errors = (u8)(status_err >> 24);

skb_checksum_none_assert(skb);

/* Rx checksum disabled */
if (!(adapter->netdev->features & NETIF_F_RXCSUM))
return;

/* Ignore Checksum bit is set */
if (status & E1000_RXD_STAT_IXSM)
return;

/* TCP/UDP checksum error bit is set */
if (errors & E1000_RXD_ERR_TCPE) {
/* let the stack verify checksum errors */
Expand All @@ -524,7 +529,7 @@ static void e1000_rx_checksum(struct e1000_adapter *adapter, u32 status_err,
* Hardware complements the payload checksum, so we undo it
* and then put the value in host order for further stack use.
*/
__sum16 sum = (__force __sum16)htons(csum);
__sum16 sum = (__force __sum16)swab16((__force u16)csum);
skb->csum = csum_unfold(~sum);
skb->ip_summed = CHECKSUM_COMPLETE;
}
Expand Down Expand Up @@ -957,8 +962,7 @@ static bool e1000_clean_rx_irq(struct e1000_adapter *adapter,

/* Receive Checksum Offload */
e1000_rx_checksum(adapter, staterr,
le16_to_cpu(rx_desc->wb.lower.hi_dword.
csum_ip.csum), skb);
rx_desc->wb.lower.hi_dword.csum_ip.csum, skb);

e1000_receive_skb(adapter, netdev, skb, staterr,
rx_desc->wb.upper.vlan);
Expand Down Expand Up @@ -1318,8 +1322,8 @@ static bool e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
total_rx_bytes += skb->len;
total_rx_packets++;

e1000_rx_checksum(adapter, staterr, le16_to_cpu(
rx_desc->wb.lower.hi_dword.csum_ip.csum), skb);
e1000_rx_checksum(adapter, staterr,
rx_desc->wb.lower.hi_dword.csum_ip.csum, skb);

if (rx_desc->wb.upper.header_status &
cpu_to_le16(E1000_RXDPS_HDRSTAT_HDRSP))
Expand Down Expand Up @@ -1491,8 +1495,7 @@ static bool e1000_clean_jumbo_rx_irq(struct e1000_adapter *adapter,

/* Receive Checksum Offload XXX recompute due to CRC strip? */
e1000_rx_checksum(adapter, staterr,
le16_to_cpu(rx_desc->wb.lower.hi_dword.
csum_ip.csum), skb);
rx_desc->wb.lower.hi_dword.csum_ip.csum, skb);

/* probably a little skewed due to removing CRC */
total_rx_bytes += skb->len;
Expand Down

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