---

yaml
---
r: 90240
b: refs/heads/master
c: 021230d
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 53e7c46b0680ccc3ac67a2b8cd7f050569836e44
+refs/heads/master: 021230d40ae0e6508d6c717b6e0d6d81cd77ac25

trunk/drivers/net/ixgbe/ixgbe.h

@@ -120,14 +120,14 @@ struct ixgbe_queue_stats {
 };
 
 struct ixgbe_ring {
-	struct ixgbe_adapter *adapter;	/* backlink */
 	void *desc;			/* descriptor ring memory */
 	dma_addr_t dma;			/* phys. address of descriptor ring */
 	unsigned int size;		/* length in bytes */
 	unsigned int count;		/* amount of descriptors */
 	unsigned int next_to_use;
 	unsigned int next_to_clean;
 
+	int queue_index; /* needed for multiqueue queue management */
 	union {
 		struct ixgbe_tx_buffer *tx_buffer_info;
 		struct ixgbe_rx_buffer *rx_buffer_info;
@@ -137,7 +137,13 @@ struct ixgbe_ring {
 	u16 tail;
 
 
+	u16 reg_idx; /* holds the special value that gets the hardware register
+		      * offset associated with this ring, which is different
+		      * for DCE and RSS modes */
 	struct ixgbe_queue_stats stats;
+	u8 v_idx; /* maps directly to the index for this ring in the hardware
+		   * vector array, can also be used for finding the bit in EICR
+		   * and friends that represents the vector for this ring */
 
 	u32 eims_value;
 	u16 itr_register;
@@ -146,6 +152,31 @@ struct ixgbe_ring {
 	u16 work_limit;                /* max work per interrupt */
 };
 
+#define RING_F_VMDQ 1
+#define RING_F_RSS  2
+#define IXGBE_MAX_RSS_INDICES  16
+#define IXGBE_MAX_VMDQ_INDICES 16
+struct ixgbe_ring_feature {
+	int indices;
+	int mask;
+};
+
+#define MAX_RX_QUEUES 64
+#define MAX_TX_QUEUES 32
+
+/* MAX_MSIX_Q_VECTORS of these are allocated,
+ * but we only use one per queue-specific vector.
+ */
+struct ixgbe_q_vector {
+	struct ixgbe_adapter *adapter;
+	struct napi_struct napi;
+	DECLARE_BITMAP(rxr_idx, MAX_RX_QUEUES); /* Rx ring indices */
+	DECLARE_BITMAP(txr_idx, MAX_TX_QUEUES); /* Tx ring indices */
+	u8 rxr_count;     /* Rx ring count assigned to this vector */
+	u8 txr_count;     /* Tx ring count assigned to this vector */
+	u32 eitr;
+};
+
 /* Helper macros to switch between ints/sec and what the register uses.
  * And yes, it's the same math going both ways.
  */
@@ -166,17 +197,26 @@ struct ixgbe_ring {
 
 #define IXGBE_MAX_JUMBO_FRAME_SIZE        16128
 
+#define OTHER_VECTOR 1
+#define NON_Q_VECTORS (OTHER_VECTOR)
+
+#define MAX_MSIX_Q_VECTORS 16
+#define MIN_MSIX_Q_VECTORS 2
+#define MAX_MSIX_COUNT (MAX_MSIX_Q_VECTORS + NON_Q_VECTORS)
+#define MIN_MSIX_COUNT (MIN_MSIX_Q_VECTORS + NON_Q_VECTORS)
+
 /* board specific private data structure */
 struct ixgbe_adapter {
 	struct timer_list watchdog_timer;
 	struct vlan_group *vlgrp;
 	u16 bd_number;
 	u16 rx_buf_len;
 	struct work_struct reset_task;
+	struct ixgbe_q_vector q_vector[MAX_MSIX_Q_VECTORS];
+	char name[MAX_MSIX_COUNT][IFNAMSIZ + 5];
 
 	/* TX */
 	struct ixgbe_ring *tx_ring;	/* One per active queue */
-	struct napi_struct napi;
 	u64 restart_queue;
 	u64 lsc_int;
 	u64 hw_tso_ctxt;
@@ -192,22 +232,26 @@ struct ixgbe_adapter {
 	u64 non_eop_descs;
 	int num_tx_queues;
 	int num_rx_queues;
+	int num_msix_vectors;
+	struct ixgbe_ring_feature ring_feature[3];
 	struct msix_entry *msix_entries;
 
 	u64 rx_hdr_split;
 	u32 alloc_rx_page_failed;
 	u32 alloc_rx_buff_failed;
 
+	/* Some features need tri-state capability,
+	 * thus the additional *_CAPABLE flags.
+	 */
 	u32 flags;
-#define IXGBE_FLAG_RX_CSUM_ENABLED              (u32)(1)
+#define IXGBE_FLAG_RX_CSUM_ENABLED              (u32)(1 << 0)
 #define IXGBE_FLAG_MSI_ENABLED                  (u32)(1 << 1)
-#define IXGBE_FLAG_MSIX_ENABLED			(u32)(1 << 2)
-#define IXGBE_FLAG_RX_PS_ENABLED		(u32)(1 << 3)
-#define IXGBE_FLAG_IN_NETPOLL			(u32)(1 << 4)
-
-	/* Interrupt Throttle Rate */
-	u32 rx_eitr;
-	u32 tx_eitr;
+#define IXGBE_FLAG_MSIX_ENABLED                 (u32)(1 << 2)
+#define IXGBE_FLAG_RX_PS_ENABLED                (u32)(1 << 3)
+#define IXGBE_FLAG_IN_NETPOLL                   (u32)(1 << 4)
+#define IXGBE_FLAG_IMIR_ENABLED                 (u32)(1 << 5)
+#define IXGBE_FLAG_RSS_ENABLED                  (u32)(1 << 6)
+#define IXGBE_FLAG_VMDQ_ENABLED                 (u32)(1 << 7)
 
 	/* OS defined structs */
 	struct net_device *netdev;
@@ -218,7 +262,10 @@ struct ixgbe_adapter {
 	struct ixgbe_hw hw;
 	u16 msg_enable;
 	struct ixgbe_hw_stats stats;
-	char lsc_name[IFNAMSIZ + 5];
+
+	/* Interrupt Throttle Rate */
+	u32 rx_eitr;
+	u32 tx_eitr;
 
 	unsigned long state;
 	u64 tx_busy;