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net-next: Add multiqueue support to vmxnet3 driver
[net-next-2.6.git] / drivers / net / vmxnet3 / vmxnet3_int.h
diff --git a/drivers/net/vmxnet3/vmxnet3_int.h b/drivers/net/vmxnet3/vmxnet3_int.h
index 8a2f4712284cfcbf0f2851547e43a2ef5f0fd595..7fadeed37f032ba4ddd0342e67ed1c392dbe6739 100644 (file)
--- a/drivers/net/vmxnet3/vmxnet3_int.h
+++ b/drivers/net/vmxnet3/vmxnet3_int.h
@@ -68,11 +68,15 @@
 /*
  * Version numbers
  */
-#define VMXNET3_DRIVER_VERSION_STRING   "1.0.14.0-k"
+#define VMXNET3_DRIVER_VERSION_STRING   "1.0.16.0-k"
 
 /* a 32-bit int, each byte encode a verion number in VMXNET3_DRIVER_VERSION */
-#define VMXNET3_DRIVER_VERSION_NUM      0x01000E00
+#define VMXNET3_DRIVER_VERSION_NUM      0x01001000
 
+#if defined(CONFIG_PCI_MSI)
+       /* RSS only makes sense if MSI-X is supported. */
+       #define VMXNET3_RSS
+#endif
 
 /*
  * Capabilities
@@ -218,16 +222,19 @@ struct vmxnet3_tx_ctx {
 };
 
 struct vmxnet3_tx_queue {
+       char                    name[IFNAMSIZ+8]; /* To identify interrupt */
+       struct vmxnet3_adapter          *adapter;
        spinlock_t                      tx_lock;
        struct vmxnet3_cmd_ring         tx_ring;
-       struct vmxnet3_tx_buf_info     *buf_info;
+       struct vmxnet3_tx_buf_info      *buf_info;
        struct vmxnet3_tx_data_ring     data_ring;
        struct vmxnet3_comp_ring        comp_ring;
-       struct Vmxnet3_TxQueueCtrl            *shared;
+       struct Vmxnet3_TxQueueCtrl      *shared;
        struct vmxnet3_tq_driver_stats  stats;
        bool                            stopped;
        int                             num_stop;  /* # of times the queue is
                                                    * stopped */
+       int                             qid;
 } __attribute__((__aligned__(SMP_CACHE_BYTES)));
 
 enum vmxnet3_rx_buf_type {
@@ -259,6 +266,9 @@ struct vmxnet3_rq_driver_stats {
 };
 
 struct vmxnet3_rx_queue {
+       char                    name[IFNAMSIZ + 8]; /* To identify interrupt */
+       struct vmxnet3_adapter    *adapter;
+       struct napi_struct        napi;
        struct vmxnet3_cmd_ring   rx_ring[2];
        struct vmxnet3_comp_ring  comp_ring;
        struct vmxnet3_rx_ctx     rx_ctx;
@@ -271,7 +281,16 @@ struct vmxnet3_rx_queue {
        struct vmxnet3_rq_driver_stats  stats;
 } __attribute__((__aligned__(SMP_CACHE_BYTES)));
 
-#define VMXNET3_LINUX_MAX_MSIX_VECT     1
+#define VMXNET3_DEVICE_MAX_TX_QUEUES 8
+#define VMXNET3_DEVICE_MAX_RX_QUEUES 8   /* Keep this value as a power of 2 */
+
+/* Should be less than UPT1_RSS_MAX_IND_TABLE_SIZE */
+#define VMXNET3_RSS_IND_TABLE_SIZE (VMXNET3_DEVICE_MAX_RX_QUEUES * 4)
+
+#define VMXNET3_LINUX_MAX_MSIX_VECT     (VMXNET3_DEVICE_MAX_TX_QUEUES + \
+                                        VMXNET3_DEVICE_MAX_RX_QUEUES + 1)
+#define VMXNET3_LINUX_MIN_MSIX_VECT     3    /* 1 for each : tx, rx and event */
+
 
 struct vmxnet3_intr {
        enum vmxnet3_intr_mask_mode  mask_mode;
@@ -279,27 +298,32 @@ struct vmxnet3_intr {
        u8  num_intrs;                  /* # of intr vectors */
        u8  event_intr_idx;             /* idx of the intr vector for event */
        u8  mod_levels[VMXNET3_LINUX_MAX_MSIX_VECT]; /* moderation level */
+       char    event_msi_vector_name[IFNAMSIZ+11];
 #ifdef CONFIG_PCI_MSI
        struct msix_entry msix_entries[VMXNET3_LINUX_MAX_MSIX_VECT];
 #endif
 };
 
+/* Interrupt sharing schemes, share_intr */
+#define VMXNET3_INTR_BUDDYSHARE 0    /* Corresponding tx,rx queues share irq */
+#define VMXNET3_INTR_TXSHARE 1      /* All tx queues share one irq */
+#define VMXNET3_INTR_DONTSHARE 2     /* each queue has its own irq */
+
+
 #define VMXNET3_STATE_BIT_RESETTING   0
 #define VMXNET3_STATE_BIT_QUIESCED    1
 struct vmxnet3_adapter {
-       struct vmxnet3_tx_queue         tx_queue;
-       struct vmxnet3_rx_queue         rx_queue;
-       struct napi_struct              napi;
-       struct vlan_group              *vlan_grp;
-
-       struct vmxnet3_intr             intr;
-
-       struct Vmxnet3_DriverShared    *shared;
-       struct Vmxnet3_PMConf          *pm_conf;
-       struct Vmxnet3_TxQueueDesc     *tqd_start;     /* first tx queue desc */
-       struct Vmxnet3_RxQueueDesc     *rqd_start;     /* first rx queue desc */
-       struct net_device              *netdev;
-       struct pci_dev                 *pdev;
+       struct vmxnet3_tx_queue         tx_queue[VMXNET3_DEVICE_MAX_TX_QUEUES];
+       struct vmxnet3_rx_queue         rx_queue[VMXNET3_DEVICE_MAX_RX_QUEUES];
+       struct vlan_group               *vlan_grp;
+       struct vmxnet3_intr             intr;
+       struct Vmxnet3_DriverShared     *shared;
+       struct Vmxnet3_PMConf           *pm_conf;
+       struct Vmxnet3_TxQueueDesc      *tqd_start;     /* all tx queue desc */
+       struct Vmxnet3_RxQueueDesc      *rqd_start;     /* all rx queue desc */
+       struct net_device               *netdev;
+       struct net_device_stats         net_stats;
+       struct pci_dev                  *pdev;
 
        u8                      __iomem *hw_addr0; /* for BAR 0 */
        u8                      __iomem *hw_addr1; /* for BAR 1 */
@@ -308,6 +332,12 @@ struct vmxnet3_adapter {
        bool                            rxcsum;
        bool                            lro;
        bool                            jumbo_frame;
+#ifdef VMXNET3_RSS
+       struct UPT1_RSSConf             *rss_conf;
+       bool                            rss;
+#endif
+       u32                             num_rx_queues;
+       u32                             num_tx_queues;
 
        /* rx buffer related */
        unsigned                        skb_buf_size;
@@ -327,17 +357,18 @@ struct vmxnet3_adapter {
        unsigned long  state;    /* VMXNET3_STATE_BIT_xxx */
 
        int dev_number;
+       int share_intr;
 };
 
 #define VMXNET3_WRITE_BAR0_REG(adapter, reg, val)  \
-       writel(cpu_to_le32(val), (adapter)->hw_addr0 + (reg))
+       writel((val), (adapter)->hw_addr0 + (reg))
 #define VMXNET3_READ_BAR0_REG(adapter, reg)        \
-       le32_to_cpu(readl((adapter)->hw_addr0 + (reg)))
+       readl((adapter)->hw_addr0 + (reg))
 
 #define VMXNET3_WRITE_BAR1_REG(adapter, reg, val)  \
-       writel(cpu_to_le32(val), (adapter)->hw_addr1 + (reg))
+       writel((val), (adapter)->hw_addr1 + (reg))
 #define VMXNET3_READ_BAR1_REG(adapter, reg)        \
-       le32_to_cpu(readl((adapter)->hw_addr1 + (reg)))
+       readl((adapter)->hw_addr1 + (reg))
 
 #define VMXNET3_WAKE_QUEUE_THRESHOLD(tq)  (5)
 #define VMXNET3_RX_ALLOC_THRESHOLD(rq, ring_idx, adapter) \
@@ -366,12 +397,10 @@ void
 vmxnet3_reset_dev(struct vmxnet3_adapter *adapter);
 
 void
-vmxnet3_tq_destroy(struct vmxnet3_tx_queue *tq,
-                  struct vmxnet3_adapter *adapter);
+vmxnet3_tq_destroy_all(struct vmxnet3_adapter *adapter);
 
 void
-vmxnet3_rq_destroy(struct vmxnet3_rx_queue *rq,
-                  struct vmxnet3_adapter *adapter);
+vmxnet3_rq_destroy_all(struct vmxnet3_adapter *adapter);
 
 int
 vmxnet3_create_queues(struct vmxnet3_adapter *adapter,
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