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authorAlexander Duyck <alexander.h.duyck@intel.com>2011-06-29 05:43:27 (GMT)
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-08-29 08:04:12 (GMT)
commit7f9643fd773a372a5470ed2daedaec5bac918e35 (patch)
tree422c3b40bc5c983d4dc65e91df2462f1fcc2123f /drivers/net
parent7ac2ed0ceeafa130f85aa947b271b571c68b9e75 (diff)
downloadlinux-fsl-qoriq-7f9643fd773a372a5470ed2daedaec5bac918e35.tar.xz
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>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/ethernet/intel/ixgbe/ixgbe.h3
-rw-r--r--drivers/net/ethernet/intel/ixgbe/ixgbe_main.c15
2 files changed, 16 insertions, 2 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
index dc3b12e..58482fc 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
@@ -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
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index bb54d3d..d587967 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -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;