enic: Add Accelerated RFS support

[cascardo/linux.git] / drivers / net / ethernet / cisco / enic / enic.h

diff --git a/drivers/net/ethernet/cisco/enic/enic.h b/drivers/net/ethernet/cisco/enic/enic.h
index e35c8e0..b9b9178 100644 (file)
--- a/drivers/net/ethernet/cisco/enic/enic.h
+++ b/drivers/net/ethernet/cisco/enic/enic.h
@@ -43,6 +43,8 @@
 #define ENIC_CQ_MAX            (ENIC_WQ_MAX + ENIC_RQ_MAX)
 #define ENIC_INTR_MAX          (ENIC_CQ_MAX + 2)
 
+#define ENIC_AIC_LARGE_PKT_DIFF        3
+
 struct enic_msix_entry {
        int requested;
        char devname[IFNAMSIZ];
@@ -50,6 +52,33 @@ struct enic_msix_entry {
        void *devid;
 };
 
+/* Store only the lower range.  Higher range is given by fw. */
+struct enic_intr_mod_range {
+       u32 small_pkt_range_start;
+       u32 large_pkt_range_start;
+};
+
+struct enic_intr_mod_table {
+       u32 rx_rate;
+       u32 range_percent;
+};
+
+#define ENIC_MAX_LINK_SPEEDS           3
+#define ENIC_LINK_SPEED_10G            10000
+#define ENIC_LINK_SPEED_4G             4000
+#define ENIC_LINK_40G_INDEX            2
+#define ENIC_LINK_10G_INDEX            1
+#define ENIC_LINK_4G_INDEX             0
+#define ENIC_RX_COALESCE_RANGE_END     125
+#define ENIC_AIC_TS_BREAK              100
+
+struct enic_rx_coal {
+       u32 small_pkt_range_start;
+       u32 large_pkt_range_start;
+       u32 range_end;
+       u32 use_adaptive_rx_coalesce;
+};
+
 /* priv_flags */
 #define ENIC_SRIOV_ENABLED             (1 << 0)
 
@@ -70,6 +99,44 @@ struct enic_port_profile {
        u8 mac_addr[ETH_ALEN];
 };
 
+#ifdef CONFIG_RFS_ACCEL
+/* enic_rfs_fltr_node - rfs filter node in hash table
+ *     @@keys: IPv4 5 tuple
+ *     @flow_id: flow_id of clsf filter provided by kernel
+ *     @fltr_id: filter id of clsf filter returned by adaptor
+ *     @rq_id: desired rq index
+ *     @node: hlist_node
+ */
+struct enic_rfs_fltr_node {
+       struct flow_keys keys;
+       u32 flow_id;
+       u16 fltr_id;
+       u16 rq_id;
+       struct hlist_node node;
+};
+
+/* enic_rfs_flw_tbl - rfs flow table
+ *     @max: Maximum number of filters vNIC supports
+ *     @free: Number of free filters available
+ *     @toclean: hash table index to clean next
+ *     @ht_head: hash table list head
+ *     @lock: spin lock
+ *     @rfs_may_expire: timer function for enic_rps_may_expire_flow
+ */
+struct enic_rfs_flw_tbl {
+       u16 max;
+       int free;
+
+#define ENIC_RFS_FLW_BITSHIFT  (10)
+#define ENIC_RFS_FLW_MASK      ((1 << ENIC_RFS_FLW_BITSHIFT) - 1)
+       u16 toclean:ENIC_RFS_FLW_BITSHIFT;
+       struct hlist_head ht_head[1 << ENIC_RFS_FLW_BITSHIFT];
+       spinlock_t lock;
+       struct timer_list rfs_may_expire;
+};
+
+#endif /* CONFIG_RFS_ACCEL */
+
 /* Per-instance private data structure */
 struct enic {
        struct net_device *netdev;
@@ -85,13 +152,12 @@ struct enic {
        u32 msg_enable;
        spinlock_t devcmd_lock;
        u8 mac_addr[ETH_ALEN];
-       u8 mc_addr[ENIC_MULTICAST_PERFECT_FILTERS][ETH_ALEN];
-       u8 uc_addr[ENIC_UNICAST_PERFECT_FILTERS][ETH_ALEN];
        unsigned int flags;
        unsigned int priv_flags;
        unsigned int mc_count;
        unsigned int uc_count;
        u32 port_mtu;
+       struct enic_rx_coal rx_coalesce_setting;
        u32 rx_coalesce_usecs;
        u32 tx_coalesce_usecs;
 #ifdef CONFIG_PCI_IOV
@@ -122,6 +188,9 @@ struct enic {
        /* completion queue cache line section */
        ____cacheline_aligned struct vnic_cq cq[ENIC_CQ_MAX];
        unsigned int cq_count;
+#ifdef CONFIG_RFS_ACCEL
+       struct enic_rfs_flw_tbl rfs_h;
+#endif
 };
 
 static inline struct device *enic_get_dev(struct enic *enic)