diff options
Diffstat (limited to 'drivers/net/ethernet/amd/xgbe/xgbe.h')
| -rw-r--r-- | drivers/net/ethernet/amd/xgbe/xgbe.h | 42 |
1 files changed, 36 insertions, 6 deletions
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe.h b/drivers/net/ethernet/amd/xgbe/xgbe.h index 901fb1fe5d0d..eb3387398c6f 100644 --- a/drivers/net/ethernet/amd/xgbe/xgbe.h +++ b/drivers/net/ethernet/amd/xgbe/xgbe.h @@ -140,6 +140,17 @@ #define XGBE_TX_MAX_BUF_SIZE (0x3fff & ~(64 - 1)) +/* Descriptors required for maximum contigous TSO/GSO packet */ +#define XGBE_TX_MAX_SPLIT ((GSO_MAX_SIZE / XGBE_TX_MAX_BUF_SIZE) + 1) + +/* Maximum possible descriptors needed for an SKB: + * - Maximum number of SKB frags + * - Maximum descriptors for contiguous TSO/GSO packet + * - Possible context descriptor + * - Possible TSO header descriptor + */ +#define XGBE_TX_MAX_DESCS (MAX_SKB_FRAGS + XGBE_TX_MAX_SPLIT + 2) + #define XGBE_RX_MIN_BUF_SIZE (ETH_FRAME_LEN + ETH_FCS_LEN + VLAN_HLEN) #define XGBE_RX_BUF_ALIGN 64 #define XGBE_SKB_ALLOC_SIZE 256 @@ -147,6 +158,7 @@ #define XGBE_MAX_DMA_CHANNELS 16 #define XGBE_MAX_QUEUES 16 +#define XGBE_DMA_STOP_TIMEOUT 5 /* DMA cache settings - Outer sharable, write-back, write-allocate */ #define XGBE_DMA_OS_AXDOMAIN 0x2 @@ -224,6 +236,8 @@ struct xgbe_prv_data; struct xgbe_packet_data { + struct sk_buff *skb; + unsigned int attributes; unsigned int errors; @@ -242,6 +256,9 @@ struct xgbe_packet_data { u32 rss_hash; enum pkt_hash_types rss_hash_type; + + unsigned int tx_packets; + unsigned int tx_bytes; }; /* Common Rx and Tx descriptor mapping */ @@ -270,6 +287,21 @@ struct xgbe_buffer_data { unsigned int dma_len; }; +/* Tx-related ring data */ +struct xgbe_tx_ring_data { + unsigned int packets; /* BQL packet count */ + unsigned int bytes; /* BQL byte count */ +}; + +/* Rx-related ring data */ +struct xgbe_rx_ring_data { + struct xgbe_buffer_data hdr; /* Header locations */ + struct xgbe_buffer_data buf; /* Payload locations */ + + unsigned short hdr_len; /* Length of received header */ + unsigned short len; /* Length of received packet */ +}; + /* Structure used to hold information related to the descriptor * and the packet associated with the descriptor (always use * use the XGBE_GET_DESC_DATA macro to access this data from the ring) @@ -281,13 +313,9 @@ struct xgbe_ring_data { struct sk_buff *skb; /* Virtual address of SKB */ dma_addr_t skb_dma; /* DMA address of SKB data */ unsigned int skb_dma_len; /* Length of SKB DMA area */ - unsigned int tso_header; /* TSO header indicator */ - - struct xgbe_buffer_data rx_hdr; /* Header locations */ - struct xgbe_buffer_data rx_buf; /* Payload locations */ - unsigned short hdr_len; /* Length of received header */ - unsigned short len; /* Length of received Rx packet */ + struct xgbe_tx_ring_data tx; /* Tx-related data */ + struct xgbe_rx_ring_data rx; /* Rx-related data */ unsigned int interrupt; /* Interrupt indicator */ @@ -345,6 +373,7 @@ struct xgbe_ring { union { struct { unsigned int queue_stopped; + unsigned int xmit_more; unsigned short cur_mss; unsigned short cur_vlan_ctag; } tx; @@ -508,6 +537,7 @@ struct xgbe_hw_if { void (*tx_desc_reset)(struct xgbe_ring_data *); int (*is_last_desc)(struct xgbe_ring_desc *); int (*is_context_desc)(struct xgbe_ring_desc *); + void (*tx_start_xmit)(struct xgbe_channel *, struct xgbe_ring *); /* For FLOW ctrl */ int (*config_tx_flow_control)(struct xgbe_prv_data *); |