#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;
+#if EFSYS_OPT_RX_SCALE
+ unsigned int flags;
+#define SFC_RXQ_RSS_HASH 0x1
+#endif
+
+ /* Used on refill */
+ unsigned int added;
+ unsigned int pushed;
+ unsigned int refill_threshold;
+ 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.
*/
struct sfc_rxq_info {
unsigned int max_entries;
+ unsigned int entries;
+ efx_rxq_type_t type;
+ struct sfc_rxq *rxq;
+ boolean_t deferred_start;
+ boolean_t deferred_started;
};
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);
+
+unsigned int sfc_rx_qdesc_npending(struct sfc_adapter *sa,
+ unsigned int sw_index);
+int sfc_rx_qdesc_done(struct sfc_rxq *rxq, unsigned int offset);
+
+#if EFSYS_OPT_RX_SCALE
+efx_rx_hash_type_t sfc_rte_to_efx_hash_type(uint64_t rss_hf);
+#endif
#ifdef __cplusplus
}