Imported Upstream version 16.07-rc1

Change-Id: I40a523e52f12e8496fdd69e902824b0226c303de
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>

1 files changed, 179 insertions, 0 deletions

diff --git a/drivers/net/qede/qede_rxtx.h b/drivers/net/qede/qede_rxtx.h
new file mode 100644
index 00000000..34eaf8b6
--- /dev/null
+++ b/drivers/net/qede/qede_rxtx.h
@@ -0,0 +1,179 @@
+/*
+ * Copyright (c) 2016 QLogic Corporation.
+ * All rights reserved.
+ * www.qlogic.com
+ *
+ * See LICENSE.qede_pmd for copyright and licensing details.
+ */
+
+
+#ifndef _QEDE_RXTX_H_
+#define _QEDE_RXTX_H_
+
+#include "qede_ethdev.h"
+
+/* Ring Descriptors */
+#define RX_RING_SIZE_POW        16	/* 64K */
+#define RX_RING_SIZE            (1ULL << RX_RING_SIZE_POW)
+#define NUM_RX_BDS_MAX          (RX_RING_SIZE - 1)
+#define NUM_RX_BDS_MIN          128
+#define NUM_RX_BDS_DEF          NUM_RX_BDS_MAX
+#define NUM_RX_BDS(q)           (q->nb_rx_desc - 1)
+
+#define TX_RING_SIZE_POW        16	/* 64K */
+#define TX_RING_SIZE            (1ULL << TX_RING_SIZE_POW)
+#define NUM_TX_BDS_MAX          (TX_RING_SIZE - 1)
+#define NUM_TX_BDS_MIN          128
+#define NUM_TX_BDS_DEF          NUM_TX_BDS_MAX
+#define NUM_TX_BDS(q)           (q->nb_tx_desc - 1)
+
+#define TX_CONS(txq)            (txq->sw_tx_cons & NUM_TX_BDS(txq))
+#define TX_PROD(txq)            (txq->sw_tx_prod & NUM_TX_BDS(txq))
+
+/* Number of TX BDs per packet used currently */
+#define MAX_NUM_TX_BDS			1
+
+#define QEDE_DEFAULT_TX_FREE_THRESH	32
+
+#define QEDE_CSUM_ERROR			(1 << 0)
+#define QEDE_CSUM_UNNECESSARY		(1 << 1)
+#define QEDE_TUNN_CSUM_UNNECESSARY	(1 << 2)
+
+#define QEDE_BD_SET_ADDR_LEN(bd, maddr, len) \
+	do { \
+		(bd)->addr.hi = rte_cpu_to_le_32(U64_HI(maddr)); \
+		(bd)->addr.lo = rte_cpu_to_le_32(U64_LO(maddr)); \
+		(bd)->nbytes = rte_cpu_to_le_16(len); \
+	} while (0)
+
+#define CQE_HAS_VLAN(flags) \
+	((flags) & (PARSING_AND_ERR_FLAGS_TAG8021QEXIST_MASK \
+		<< PARSING_AND_ERR_FLAGS_TAG8021QEXIST_SHIFT))
+
+#define CQE_HAS_OUTER_VLAN(flags) \
+	((flags) & (PARSING_AND_ERR_FLAGS_TUNNEL8021QTAGEXIST_MASK \
+		<< PARSING_AND_ERR_FLAGS_TUNNEL8021QTAGEXIST_SHIFT))
+
+/* Max supported alignment is 256 (8 shift)
+ * minimal alignment shift 6 is optimal for 57xxx HW performance
+ */
+#define QEDE_L1_CACHE_SHIFT	6
+#define QEDE_RX_ALIGN_SHIFT	(RTE_MAX(6, RTE_MIN(8, QEDE_L1_CACHE_SHIFT)))
+#define QEDE_FW_RX_ALIGN_END	(1UL << QEDE_RX_ALIGN_SHIFT)
+
+#define QEDE_ETH_OVERHEAD       (ETHER_HDR_LEN + 8 + 8 + QEDE_FW_RX_ALIGN_END)
+
+/* TBD: Excluding IPV6 */
+#define QEDE_RSS_OFFLOAD_ALL    (ETH_RSS_IPV4 | ETH_RSS_NONFRAG_IPV4_TCP | \
+				 ETH_RSS_NONFRAG_IPV4_UDP)
+
+#define QEDE_TXQ_FLAGS		((uint32_t)ETH_TXQ_FLAGS_NOMULTSEGS)
+
+#define MAX_NUM_TC		8
+
+#define for_each_rss(i) for (i = 0; i < qdev->num_rss; i++)
+
+/*
+ * RX BD descriptor ring
+ */
+struct qede_rx_entry {
+	struct rte_mbuf *mbuf;
+	uint32_t page_offset;
+	/* allows expansion .. */
+};
+
+/*
+ * Structure associated with each RX queue.
+ */
+struct qede_rx_queue {
+	struct rte_mempool *mb_pool;
+	struct ecore_chain rx_bd_ring;
+	struct ecore_chain rx_comp_ring;
+	uint16_t *hw_cons_ptr;
+	void OSAL_IOMEM *hw_rxq_prod_addr;
+	struct qede_rx_entry *sw_rx_ring;
+	uint16_t sw_rx_cons;
+	uint16_t sw_rx_prod;
+	uint16_t nb_rx_desc;
+	uint16_t queue_id;
+	uint16_t port_id;
+	uint16_t rx_buf_size;
+	uint64_t rx_hw_errors;
+	uint64_t rx_alloc_errors;
+	struct qede_dev *qdev;
+};
+
+/*
+ * TX BD descriptor ring
+ */
+struct qede_tx_entry {
+	struct rte_mbuf *mbuf;
+	uint8_t flags;
+};
+
+union db_prod {
+	struct eth_db_data data;
+	uint32_t raw;
+};
+
+struct qede_tx_queue {
+	struct ecore_chain tx_pbl;
+	struct qede_tx_entry *sw_tx_ring;
+	uint16_t nb_tx_desc;
+	uint16_t nb_tx_avail;
+	uint16_t tx_free_thresh;
+	uint16_t queue_id;
+	uint16_t *hw_cons_ptr;
+	uint16_t sw_tx_cons;
+	uint16_t sw_tx_prod;
+	void OSAL_IOMEM *doorbell_addr;
+	volatile union db_prod tx_db;
+	uint16_t port_id;
+	uint64_t txq_counter;
+	struct qede_dev *qdev;
+};
+
+struct qede_fastpath {
+	struct qede_dev *qdev;
+	uint8_t rss_id;
+	struct ecore_sb_info *sb_info;
+	struct qede_rx_queue *rxq;
+	struct qede_tx_queue *txqs[MAX_NUM_TC];
+	char name[80];
+};
+
+/*
+ * RX/TX function prototypes
+ */
+int qede_rx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
+			uint16_t nb_desc, unsigned int socket_id,
+			const struct rte_eth_rxconf *rx_conf,
+			struct rte_mempool *mp);
+
+int qede_tx_queue_setup(struct rte_eth_dev *dev,
+			uint16_t queue_idx,
+			uint16_t nb_desc,
+			unsigned int socket_id,
+			const struct rte_eth_txconf *tx_conf);
+
+void qede_rx_queue_release(void *rx_queue);
+
+void qede_tx_queue_release(void *tx_queue);
+
+int qede_dev_start(struct rte_eth_dev *eth_dev);
+
+void qede_dev_stop(struct rte_eth_dev *eth_dev);
+
+void qede_reset_fp_rings(struct qede_dev *qdev);
+
+void qede_free_fp_arrays(struct qede_dev *qdev);
+
+void qede_free_mem_load(struct qede_dev *qdev);
+
+uint16_t qede_xmit_pkts(void *p_txq, struct rte_mbuf **tx_pkts,
+			uint16_t nb_pkts);
+
+uint16_t qede_recv_pkts(void *p_rxq, struct rte_mbuf **rx_pkts,
+			uint16_t nb_pkts);
+
+#endif /* _QEDE_RXTX_H_ */