igb: consolidate creation of Tx buffer info and data descriptor
This change will combine the writes of tx_buffer_info and the Tx data
descriptors into a single function. The advantage of this is that we can
avoid needless memory reads from the buffer info struct and speed things up
by keeping the accesses to the local registers.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h
index b71d186..77793a9 100644
--- a/drivers/net/ethernet/intel/igb/igb.h
+++ b/drivers/net/ethernet/intel/igb/igb.h
@@ -135,7 +135,6 @@
#define IGB_TX_FLAGS_TSO 0x00000004
#define IGB_TX_FLAGS_IPV4 0x00000008
#define IGB_TX_FLAGS_TSTAMP 0x00000010
-#define IGB_TX_FLAGS_MAPPED_AS_PAGE 0x00000020
#define IGB_TX_FLAGS_VLAN_MASK 0xffff0000
#define IGB_TX_FLAGS_VLAN_SHIFT 16
@@ -144,13 +143,12 @@
struct igb_tx_buffer {
union e1000_adv_tx_desc *next_to_watch;
unsigned long time_stamp;
- dma_addr_t dma;
- u32 length;
- u32 tx_flags;
struct sk_buff *skb;
unsigned int bytecount;
u16 gso_segs;
- u8 mapped_as_page;
+ dma_addr_t dma;
+ u32 length;
+ u32 tx_flags;
};
struct igb_rx_buffer {