net/sfc: implement device callback to Rx burst of packets

[dpdk.git] / drivers / net / sfc / sfc_rx.h

diff --git a/drivers/net/sfc/sfc_rx.h b/drivers/net/sfc/sfc_rx.h
index 2e27b53..e4385b9 100644 (file)
--- a/drivers/net/sfc/sfc_rx.h
+++ b/drivers/net/sfc/sfc_rx.h
@@ -30,11 +30,84 @@
 #ifndef _SFC_RX_H
 #define _SFC_RX_H
 
+#include <rte_mbuf.h>
+#include <rte_mempool.h>
+#include <rte_ethdev.h>
+
+#include "efx.h"
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 struct sfc_adapter;
+struct sfc_evq;
+
+/**
+ * Software Rx descriptor information associated with hardware Rx
+ * descriptor.
+ */
+struct sfc_rx_sw_desc {
+       struct rte_mbuf         *mbuf;
+       unsigned int            flags;
+       unsigned int            size;
+};
+
+/** Receive queue state bits */
+enum sfc_rxq_state_bit {
+       SFC_RXQ_INITIALIZED_BIT = 0,
+#define SFC_RXQ_INITIALIZED    (1 << SFC_RXQ_INITIALIZED_BIT)
+       SFC_RXQ_STARTED_BIT,
+#define SFC_RXQ_STARTED                (1 << SFC_RXQ_STARTED_BIT)
+       SFC_RXQ_RUNNING_BIT,
+#define SFC_RXQ_RUNNING                (1 << SFC_RXQ_RUNNING_BIT)
+       SFC_RXQ_FLUSHING_BIT,
+#define SFC_RXQ_FLUSHING       (1 << SFC_RXQ_FLUSHING_BIT)
+       SFC_RXQ_FLUSHED_BIT,
+#define SFC_RXQ_FLUSHED                (1 << SFC_RXQ_FLUSHED_BIT)
+       SFC_RXQ_FLUSH_FAILED_BIT,
+#define SFC_RXQ_FLUSH_FAILED   (1 << SFC_RXQ_FLUSH_FAILED_BIT)
+};
+
+/**
+ * Receive queue information used on data path.
+ * Allocated on the socket specified on the queue setup.
+ */
+struct sfc_rxq {
+       /* Used on data path */
+       struct sfc_evq          *evq;
+       struct sfc_rx_sw_desc   *sw_desc;
+       unsigned int            state;
+       unsigned int            ptr_mask;
+       unsigned int            pending;
+       unsigned int            completed;
+       uint16_t                batch_max;
+       uint16_t                prefix_size;
+
+       /* Used on refill */
+       unsigned int            added;
+       unsigned int            pushed;
+       uint8_t                 port_id;
+       uint16_t                buf_size;
+       struct rte_mempool      *refill_mb_pool;
+       efx_rxq_t               *common;
+       efsys_mem_t             mem;
+
+       /* Not used on data path */
+       unsigned int            hw_index;
+};
+
+static inline unsigned int
+sfc_rxq_sw_index_by_hw_index(unsigned int hw_index)
+{
+       return hw_index;
+}
+
+static inline unsigned int
+sfc_rxq_sw_index(const struct sfc_rxq *rxq)
+{
+       return sfc_rxq_sw_index_by_hw_index(rxq->hw_index);
+}
 
 /**
  * Receive queue information used during setup/release only.
@@ -42,10 +115,29 @@ struct sfc_adapter;
  */
 struct sfc_rxq_info {
        unsigned int            max_entries;
+       unsigned int            entries;
+       efx_rxq_type_t          type;
+       struct sfc_rxq          *rxq;
 };
 
 int sfc_rx_init(struct sfc_adapter *sa);
 void sfc_rx_fini(struct sfc_adapter *sa);
+int sfc_rx_start(struct sfc_adapter *sa);
+void sfc_rx_stop(struct sfc_adapter *sa);
+
+int sfc_rx_qinit(struct sfc_adapter *sa, unsigned int rx_queue_id,
+                uint16_t nb_rx_desc, unsigned int socket_id,
+                const struct rte_eth_rxconf *rx_conf,
+                struct rte_mempool *mb_pool);
+void sfc_rx_qfini(struct sfc_adapter *sa, unsigned int sw_index);
+int sfc_rx_qstart(struct sfc_adapter *sa, unsigned int sw_index);
+void sfc_rx_qstop(struct sfc_adapter *sa, unsigned int sw_index);
+
+void sfc_rx_qflush_done(struct sfc_rxq *rxq);
+void sfc_rx_qflush_failed(struct sfc_rxq *rxq);
+
+uint16_t sfc_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
+                      uint16_t nb_pkts);
 
 #ifdef __cplusplus
 }