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ixgbe: Add support for setting CC bit when SR-IOV is enabled 

This change makes it so that the CC bit in the descriptor is set when
SR-IOV is enabled.  This is needed in order to support offloading
functionality when passing traffic over the internal TX switch.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Alexander Duyck 2011-06-29 05:43:27 +00:00 committed by Jeff Kirsher
parent 7ac2ed0cee
commit 7f9643fd77
2 changed files with 16 additions and 2 deletions
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3
drivers/net/ethernet/intel/ixgbe/ixgbe.h
View File

@ -97,7 +97,8 @@
#define IXGBE_TX_FLAGS_IPV4 (u32)(1 << 4)
#define IXGBE_TX_FLAGS_FCOE (u32)(1 << 5)
#define IXGBE_TX_FLAGS_FSO (u32)(1 << 6)
#define IXGBE_TX_FLAGS_MAPPED_AS_PAGE (u32)(1 << 7)
#define IXGBE_TX_FLAGS_TXSW (u32)(1 << 7)
#define IXGBE_TX_FLAGS_MAPPED_AS_PAGE (u32)(1 << 8)
#define IXGBE_TX_FLAGS_VLAN_MASK 0xffff0000
#define IXGBE_TX_FLAGS_VLAN_PRIO_MASK 0xe0000000
#define IXGBE_TX_FLAGS_VLAN_PRIO_SHIFT 29

15
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
View File

@ -6295,7 +6295,8 @@ static bool ixgbe_tx_csum(struct ixgbe_ring *tx_ring,
u32 type_tucmd = 0;
if (skb->ip_summed != CHECKSUM_PARTIAL) {
if (!(tx_flags & IXGBE_TX_FLAGS_HW_VLAN))
if (!(tx_flags & IXGBE_TX_FLAGS_HW_VLAN) &&
!(tx_flags & IXGBE_TX_FLAGS_TXSW))
return false;
} else {
u8 l4_hdr = 0;
@ -6398,6 +6399,13 @@ static __le32 ixgbe_tx_olinfo_status(u32 tx_flags, unsigned int paylen)
(1 << IXGBE_ADVTXD_IDX_SHIFT));
#endif
/*
* Check Context must be set if Tx switch is enabled, which it
* always is for case where virtual functions are running
*/
if (tx_flags & IXGBE_TX_FLAGS_TXSW)
olinfo_status |= cpu_to_le32(IXGBE_ADVTXD_CC);
return olinfo_status;
}
@ -6732,6 +6740,11 @@ netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *skb,
return NETDEV_TX_BUSY;
}
#ifdef CONFIG_PCI_IOV
if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)
tx_flags |= IXGBE_TX_FLAGS_TXSW;
#endif
/* if we have a HW VLAN tag being added default to the HW one */
if (vlan_tx_tag_present(skb)) {
tx_flags |= vlan_tx_tag_get(skb) << IXGBE_TX_FLAGS_VLAN_SHIFT;