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Commit f0d43780 authored by Shrikrishna Khare's avatar Shrikrishna Khare Committed by David S. Miller
Browse files

Driver: Vmxnet3: set CHECKSUM_UNNECESSARY for IPv6 packets 



For IPv6, if the device indicates that the checksum is correct, set
CHECKSUM_UNNECESSARY.

Reported-by: default avatarSubbarao Narahari <snarahari@vmware.com>
Signed-off-by: default avatarShrikrishna Khare <skhare@vmware.com>
Signed-off-by: default avatarJin Heo <heoj@vmware.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent f43bfaed

drivers/net/vmxnet3/vmxnet3_drv.c

+8 −4
Original line number Diff line number Diff line
@@ -1152,12 +1152,16 @@ vmxnet3_rx_csum(struct vmxnet3_adapter *adapter, 
		union Vmxnet3_GenericDesc *gdesc)

{

	if (!gdesc->rcd.cnc && adapter->netdev->features & NETIF_F_RXCSUM) {

		/* typical case: TCP/UDP over IP and both csums are correct */

		if ((le32_to_cpu(gdesc->dword[3]) & VMXNET3_RCD_CSUM_OK) ==

							VMXNET3_RCD_CSUM_OK) {

		if (gdesc->rcd.v4 &&

		    (le32_to_cpu(gdesc->dword[3]) &

		     VMXNET3_RCD_CSUM_OK) == VMXNET3_RCD_CSUM_OK) {

			skb->ip_summed = CHECKSUM_UNNECESSARY;

			BUG_ON(!(gdesc->rcd.tcp || gdesc->rcd.udp));

			BUG_ON(gdesc->rcd.frg);

		} else if (gdesc->rcd.v6 && (le32_to_cpu(gdesc->dword[3]) &

					     (1 << VMXNET3_RCD_TUC_SHIFT))) {

			skb->ip_summed = CHECKSUM_UNNECESSARY;

			BUG_ON(!(gdesc->rcd.tcp || gdesc->rcd.udp));

			BUG_ON(!(gdesc->rcd.v4  || gdesc->rcd.v6));

			BUG_ON(gdesc->rcd.frg);

		} else {

			if (gdesc->rcd.csum) {

drivers/net/vmxnet3/vmxnet3_int.h

+2 −2
Original line number Diff line number Diff line
@@ -69,10 +69,10 @@ 
/*

 * Version numbers

 */

#define VMXNET3_DRIVER_VERSION_STRING   "1.4.6.0-k"

#define VMXNET3_DRIVER_VERSION_STRING   "1.4.7.0-k"



/* a 32-bit int, each byte encode a verion number in VMXNET3_DRIVER_VERSION */

#define VMXNET3_DRIVER_VERSION_NUM      0x01040600

#define VMXNET3_DRIVER_VERSION_NUM      0x01040700



#if defined(CONFIG_PCI_MSI)

	/* RSS only makes sense if MSI-X is supported. */