diff options
Diffstat (limited to 'drivers/net/ethernet/microchip/sparx5/sparx5_main.h')
| -rw-r--r-- | drivers/net/ethernet/microchip/sparx5/sparx5_main.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_main.h b/drivers/net/ethernet/microchip/sparx5/sparx5_main.h index 4d5f44c3a421..a1acc9b461f2 100644 --- a/drivers/net/ethernet/microchip/sparx5/sparx5_main.h +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_main.h @@ -73,8 +73,61 @@ enum sparx5_vlan_port_type { #define XTR_QUEUE 0 #define INJ_QUEUE 0 +#define FDMA_DCB_MAX 64 +#define FDMA_RX_DCB_MAX_DBS 15 +#define FDMA_TX_DCB_MAX_DBS 1 + struct sparx5; +struct sparx5_db_hw { + u64 dataptr; + u64 status; +}; + +struct sparx5_rx_dcb_hw { + u64 nextptr; + u64 info; + struct sparx5_db_hw db[FDMA_RX_DCB_MAX_DBS]; +}; + +struct sparx5_tx_dcb_hw { + u64 nextptr; + u64 info; + struct sparx5_db_hw db[FDMA_TX_DCB_MAX_DBS]; +}; + +/* Frame DMA receive state: + * For each DB, there is a SKB, and the skb data pointer is mapped in + * the DB. Once a frame is received the skb is given to the upper layers + * and a new skb is added to the dcb. + * When the db_index reached FDMA_RX_DCB_MAX_DBS the DB is reused. + */ +struct sparx5_rx { + struct sparx5_rx_dcb_hw *dcb_entries; + struct sparx5_rx_dcb_hw *last_entry; + struct sk_buff *skb[FDMA_DCB_MAX][FDMA_RX_DCB_MAX_DBS]; + int db_index; + int dcb_index; + dma_addr_t dma; + struct napi_struct napi; + u32 channel_id; + struct net_device *ndev; + u64 packets; +}; + +/* Frame DMA transmit state: + * DCBs are chained using the DCBs nextptr field. + */ +struct sparx5_tx { + struct sparx5_tx_dcb_hw *curr_entry; + struct sparx5_tx_dcb_hw *first_entry; + struct list_head db_list; + dma_addr_t dma; + u32 channel_id; + u64 packets; + u64 dropped; +}; + struct sparx5_port_config { phy_interface_t portmode; u32 bandwidth; @@ -167,6 +220,10 @@ struct sparx5 { bool sd_sgpio_remapping; /* Register based inj/xtr */ int xtr_irq; + /* Frame DMA */ + int fdma_irq; + struct sparx5_rx rx; + struct sparx5_tx tx; }; /* sparx5_switchdev.c */ @@ -174,11 +231,23 @@ int sparx5_register_notifier_blocks(struct sparx5 *sparx5); void sparx5_unregister_notifier_blocks(struct sparx5 *sparx5); /* sparx5_packet.c */ +struct frame_info { + int src_port; +}; + +void sparx5_xtr_flush(struct sparx5 *sparx5, u8 grp); +void sparx5_ifh_parse(u32 *ifh, struct frame_info *info); irqreturn_t sparx5_xtr_handler(int irq, void *_priv); int sparx5_port_xmit_impl(struct sk_buff *skb, struct net_device *dev); int sparx5_manual_injection_mode(struct sparx5 *sparx5); void sparx5_port_inj_timer_setup(struct sparx5_port *port); +/* sparx5_fdma.c */ +int sparx5_fdma_start(struct sparx5 *sparx5); +int sparx5_fdma_stop(struct sparx5 *sparx5); +int sparx5_fdma_xmit(struct sparx5 *sparx5, u32 *ifh, struct sk_buff *skb); +irqreturn_t sparx5_fdma_handler(int irq, void *args); + /* sparx5_mactable.c */ void sparx5_mact_pull_work(struct work_struct *work); int sparx5_mact_learn(struct sparx5 *sparx5, int port, |