ixgbe: move common Tx functions to ixgbe_txrx_common.h

This patch prepares for the upcoming zero-copy Tx functionality by
moving common functions used both by the regular path and zero-copy
path.

Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Tested-by: William Tu <u9012063@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/ixgbe/ixgbe_main.c

@@ -895,8 +895,8 @@ static void ixgbe_set_ivar(struct ixgbe_adapter *adapter, s8 direction,
 	}
 }
 
-static inline void ixgbe_irq_rearm_queues(struct ixgbe_adapter *adapter,
-					  u64 qmask)
+void ixgbe_irq_rearm_queues(struct ixgbe_adapter *adapter,
+			    u64 qmask)
 {
 	u32 mask;
 
@@ -8154,9 +8154,6 @@ static inline int ixgbe_maybe_stop_tx(struct ixgbe_ring *tx_ring, u16 size)
 	return __ixgbe_maybe_stop_tx(tx_ring, size);
 }
 
-#define IXGBE_TXD_CMD (IXGBE_TXD_CMD_EOP | \
-		       IXGBE_TXD_CMD_RS)
-
 static int ixgbe_tx_map(struct ixgbe_ring *tx_ring,
 			struct ixgbe_tx_buffer *first,
 			const u8 hdr_len)
@@ -10257,7 +10254,7 @@ static int ixgbe_xdp(struct net_device *dev, struct netdev_bpf *xdp)
 	}
 }
 
-static void ixgbe_xdp_ring_update_tail(struct ixgbe_ring *ring)
+void ixgbe_xdp_ring_update_tail(struct ixgbe_ring *ring)
 {
 	/* Force memory writes to complete before letting h/w know there
 	 * are new descriptors to fetch.

drivers/net/ethernet/intel/ixgbe/ixgbe_txrx_common.h

@@ -9,6 +9,9 @@
 #define IXGBE_XDP_TX		BIT(1)
 #define IXGBE_XDP_REDIR		BIT(2)
 
+#define IXGBE_TXD_CMD (IXGBE_TXD_CMD_EOP | \
+		       IXGBE_TXD_CMD_RS)
+
 int ixgbe_xmit_xdp_ring(struct ixgbe_adapter *adapter,
 			struct xdp_frame *xdpf);
 bool ixgbe_cleanup_headers(struct ixgbe_ring *rx_ring,
@@ -19,6 +22,8 @@ void ixgbe_process_skb_fields(struct ixgbe_ring *rx_ring,
 			      struct sk_buff *skb);
 void ixgbe_rx_skb(struct ixgbe_q_vector *q_vector,
 		  struct sk_buff *skb);
+void ixgbe_xdp_ring_update_tail(struct ixgbe_ring *ring);
+void ixgbe_irq_rearm_queues(struct ixgbe_adapter *adapter, u64 qmask);
 
 void ixgbe_txrx_ring_disable(struct ixgbe_adapter *adapter, int ring);
 void ixgbe_txrx_ring_enable(struct ixgbe_adapter *adapter, int ring);