[PATCH] e1000: General Fixes

These fixes update the TX and RX ring structures.  Prepare driver for up-coming fixes.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

drivers/net/e1000/e1000.h

@@ -191,7 +191,6 @@ struct e1000_tx_ring {
 	spinlock_t tx_lock;
 	uint16_t tdh;
 	uint16_t tdt;
-	uint64_t pkt;
 
 	boolean_t last_tx_tso;
 
@@ -216,9 +215,14 @@ struct e1000_rx_ring {
 	struct e1000_ps_page *ps_page;
 	struct e1000_ps_page_dma *ps_page_dma;
 
+	struct sk_buff *rx_skb_top;
+	struct sk_buff *rx_skb_prev;
+
+	/* cpu for rx queue */
+	int cpu;
+
 	uint16_t rdh;
 	uint16_t rdt;
-	uint64_t pkt;
 };
 
 #define E1000_DESC_UNUSED(R) \

drivers/net/e1000/e1000_main.c

@@ -2204,7 +2204,7 @@ static void
 e1000_watchdog_task(struct e1000_adapter *adapter)
 {
 	struct net_device *netdev = adapter->netdev;
-	struct e1000_tx_ring *txdr = &adapter->tx_ring[0];
+	struct e1000_tx_ring *txdr = adapter->tx_ring;
 	uint32_t link;
 
 	e1000_check_for_link(&adapter->hw);
@@ -2314,6 +2314,7 @@ e1000_tso(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring,
 {
 #ifdef NETIF_F_TSO
 	struct e1000_context_desc *context_desc;
+	struct e1000_buffer *buffer_info;
 	unsigned int i;
 	uint32_t cmd_length = 0;
 	uint16_t ipcse = 0, tucse, mss;
@@ -2363,6 +2364,7 @@ e1000_tso(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring,
 
 		i = tx_ring->next_to_use;
 		context_desc = E1000_CONTEXT_DESC(*tx_ring, i);
+		buffer_info = &tx_ring->buffer_info[i];
 
 		context_desc->lower_setup.ip_fields.ipcss  = ipcss;
 		context_desc->lower_setup.ip_fields.ipcso  = ipcso;
@@ -2374,6 +2376,8 @@ e1000_tso(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring,
 		context_desc->tcp_seg_setup.fields.hdr_len = hdr_len;
 		context_desc->cmd_and_length = cpu_to_le32(cmd_length);
 
+		buffer_info->time_stamp = jiffies;
+
 		if (++i == tx_ring->count) i = 0;
 		tx_ring->next_to_use = i;
 
@@ -2389,6 +2393,7 @@ e1000_tx_csum(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring,
               struct sk_buff *skb)
 {
 	struct e1000_context_desc *context_desc;
+	struct e1000_buffer *buffer_info;
 	unsigned int i;
 	uint8_t css;
 
@@ -2396,6 +2401,7 @@ e1000_tx_csum(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring,
 		css = skb->h.raw - skb->data;
 
 		i = tx_ring->next_to_use;
+		buffer_info = &tx_ring->buffer_info[i];
 		context_desc = E1000_CONTEXT_DESC(*tx_ring, i);
 
 		context_desc->upper_setup.tcp_fields.tucss = css;
@@ -2404,6 +2410,8 @@ e1000_tx_csum(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring,
 		context_desc->tcp_seg_setup.data = 0;
 		context_desc->cmd_and_length = cpu_to_le32(E1000_TXD_CMD_DEXT);
 
+		buffer_info->time_stamp = jiffies;
+
 		if (unlikely(++i == tx_ring->count)) i = 0;
 		tx_ring->next_to_use = i;
 
@@ -3255,8 +3263,6 @@ e1000_clean_tx_irq(struct e1000_adapter *adapter,
 			if(unlikely(++i == tx_ring->count)) i = 0;
 		}
 
-		tx_ring->pkt++;
-		
 		eop = tx_ring->buffer_info[i].next_to_watch;
 		eop_desc = E1000_TX_DESC(*tx_ring, eop);
 	}
@@ -3461,7 +3467,6 @@ e1000_clean_rx_irq(struct e1000_adapter *adapter,
 		}
 #endif /* CONFIG_E1000_NAPI */
 		netdev->last_rx = jiffies;
-		rx_ring->pkt++;
 
 next_desc:
 		rx_desc->status = 0;
@@ -3592,7 +3597,6 @@ e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
 		}
 #endif /* CONFIG_E1000_NAPI */
 		netdev->last_rx = jiffies;
-		rx_ring->pkt++;
 
 next_desc:
 		rx_desc->wb.middle.status_error &= ~0xFF;