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igb: cleanup incorrect comment and set IP Checksum Enable

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IP Checksum enable doesn't need packet split in order to function.  It only
requires the use of advanced descriptors which the current igb driver does.
So we can enable it always without any issues.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexander Duyck 2009-02-12 18:17:42 +00:00 committed by David S. Miller
parent 1e5c3d218a
commit 56fbbb4e61
1 changed files with 4 additions and 10 deletions
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14
drivers/net/igb/igb_main.c
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@ -2059,17 +2059,11 @@ static void igb_configure_rx(struct igb_adapter *adapter)
} else {
/* Enable Receive Checksum Offload for TCP and UDP */
rxcsum = rd32(E1000_RXCSUM);
if (adapter->rx_csum) {
rxcsum |= E1000_RXCSUM_TUOFL;
if (adapter->rx_csum)
rxcsum |= E1000_RXCSUM_TUOFL | E1000_RXCSUM_IPPCSE;
else
rxcsum &= ~(E1000_RXCSUM_TUOFL | E1000_RXCSUM_IPPCSE);
/* Enable IPv4 payload checksum for UDP fragments
* Must be used in conjunction with packet-split. */
if (adapter->rx_ps_hdr_size)
rxcsum |= E1000_RXCSUM_IPPCSE;
} else {
rxcsum &= ~E1000_RXCSUM_TUOFL;
/* don't need to clear IPPCSE as it defaults to 0 */
}
wr32(E1000_RXCSUM, rxcsum);
}