unsigned int txq_entries;
/** Maximum size of data in the DMA descriptor */
uint16_t dma_desc_size_max;
+ /** DMA-mapped Tx descriptors ring */
+ void *txq_hw_ring;
+ /** Associated event queue size */
+ unsigned int evq_entries;
+ /** Hardware event ring */
+ void *evq_hw_ring;
+ /** The queue index in hardware (required to push right doorbell) */
+ unsigned int hw_index;
+ /** Virtual address of the memory-mapped BAR to push Tx doorbell */
+ volatile void *mem_bar;
};
/**
typedef void (sfc_dp_tx_qstop_t)(struct sfc_dp_txq *dp_txq,
unsigned int *evq_read_ptr);
+/**
+ * Transmit event handler used during queue flush only.
+ */
+typedef bool (sfc_dp_tx_qtx_ev_t)(struct sfc_dp_txq *dp_txq, unsigned int id);
+
/**
* Transmit queue function called after the queue flush.
*/
typedef void (sfc_dp_tx_qreap_t)(struct sfc_dp_txq *dp_txq);
+/**
+ * Check Tx descriptor status
+ */
+typedef int (sfc_dp_tx_qdesc_status_t)(struct sfc_dp_txq *dp_txq,
+ uint16_t offset);
+
/** Transmit datapath definition */
struct sfc_dp_tx {
struct sfc_dp dp;
unsigned int features;
#define SFC_DP_TX_FEAT_VLAN_INSERT 0x1
#define SFC_DP_TX_FEAT_TSO 0x2
+#define SFC_DP_TX_FEAT_MULTI_SEG 0x4
+#define SFC_DP_TX_FEAT_MULTI_PROCESS 0x8
+#define SFC_DP_TX_FEAT_MULTI_POOL 0x10
+#define SFC_DP_TX_FEAT_REFCNT 0x20
sfc_dp_tx_qcreate_t *qcreate;
sfc_dp_tx_qdestroy_t *qdestroy;
sfc_dp_tx_qstart_t *qstart;
sfc_dp_tx_qstop_t *qstop;
+ sfc_dp_tx_qtx_ev_t *qtx_ev;
sfc_dp_tx_qreap_t *qreap;
+ sfc_dp_tx_qdesc_status_t *qdesc_status;
eth_tx_burst_t pkt_burst;
};
}
extern struct sfc_dp_tx sfc_efx_tx;
+extern struct sfc_dp_tx sfc_ef10_tx;
+extern struct sfc_dp_tx sfc_ef10_simple_tx;
#ifdef __cplusplus
}