[ceph.git] / ceph / src / seastar / dpdk / drivers / net / vmxnet3 / vmxnet3_ring.h

/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(c) 2010-2014 Intel Corporation
 */

#ifndef _VMXNET3_RING_H_
#define _VMXNET3_RING_H_

#define VMXNET3_RX_CMDRING_SIZE 2

#define VMXNET3_DRIVER_VERSION_NUM 0x01012000

/* Default ring size */
#define VMXNET3_DEF_TX_RING_SIZE 512
#define VMXNET3_DEF_RX_RING_SIZE 128

/* Default rx data ring desc size */
#define VMXNET3_DEF_RXDATA_DESC_SIZE 256

#define VMXNET3_SUCCESS 0
#define VMXNET3_FAIL   -1

#define TRUE  1
#define FALSE 0


typedef struct vmxnet3_buf_info {
	uint16_t               len;
	struct rte_mbuf        *m;
	uint64_t               bufPA;
} vmxnet3_buf_info_t;

typedef struct vmxnet3_cmd_ring {
	vmxnet3_buf_info_t     *buf_info;
	uint32_t               size;
	uint32_t               next2fill;
	uint32_t               next2comp;
	uint8_t                gen;
	uint8_t                rid;
	Vmxnet3_GenericDesc    *base;
	uint64_t               basePA;
} vmxnet3_cmd_ring_t;

static inline void
vmxnet3_cmd_ring_adv_next2fill(struct vmxnet3_cmd_ring *ring)
{
	ring->next2fill++;
	if (unlikely(ring->next2fill == ring->size)) {
		ring->next2fill = 0;
		ring->gen = (uint8_t)(ring->gen ^ 1);
	}
}

static inline void
vmxnet3_cmd_ring_adv_next2comp(struct vmxnet3_cmd_ring *ring)
{
	VMXNET3_INC_RING_IDX_ONLY(ring->next2comp, ring->size);
}

static inline uint32_t
vmxnet3_cmd_ring_desc_avail(struct vmxnet3_cmd_ring *ring)
{
	return (ring->next2comp > ring->next2fill ? 0 : ring->size) +
		   ring->next2comp - ring->next2fill - 1;
}

static inline bool
vmxnet3_cmd_ring_desc_empty(struct vmxnet3_cmd_ring *ring)
{
	return ring->next2comp == ring->next2fill;
}

typedef struct vmxnet3_comp_ring {
	uint32_t               size;
	uint32_t               next2proc;
	uint8_t                gen;
	uint8_t                intr_idx;
	Vmxnet3_GenericDesc    *base;
	uint64_t               basePA;
} vmxnet3_comp_ring_t;

struct vmxnet3_data_ring {
	struct Vmxnet3_TxDataDesc *base;
	uint32_t                  size;
	uint64_t                  basePA;
};

static inline void
vmxnet3_comp_ring_adv_next2proc(struct vmxnet3_comp_ring *ring)
{
	ring->next2proc++;
	if (unlikely(ring->next2proc == ring->size)) {
		ring->next2proc = 0;
		ring->gen = (uint8_t)(ring->gen ^ 1);
	}
}

struct vmxnet3_txq_stats {
	uint64_t        drop_total; /* # of pkts dropped by the driver,
				     * the counters below track droppings due to
				     * different reasons
				     */
	uint64_t        drop_too_many_segs;
	uint64_t        drop_tso;
	uint64_t        tx_ring_full;
};

typedef struct vmxnet3_tx_queue {
	struct vmxnet3_hw            *hw;
	struct vmxnet3_cmd_ring      cmd_ring;
	struct vmxnet3_comp_ring     comp_ring;
	struct vmxnet3_data_ring     data_ring;
	uint32_t                     qid;
	struct Vmxnet3_TxQueueDesc   *shared;
	struct vmxnet3_txq_stats     stats;
	const struct rte_memzone     *mz;
	bool                         stopped;
	uint16_t                     queue_id;      /**< Device TX queue index. */
	uint16_t                     port_id;       /**< Device port identifier. */
	uint16_t		     txdata_desc_size;
} vmxnet3_tx_queue_t;

struct vmxnet3_rxq_stats {
	uint64_t                     drop_total;
	uint64_t                     drop_err;
	uint64_t                     drop_fcs;
	uint64_t                     rx_buf_alloc_failure;
};

struct vmxnet3_rx_data_ring {
	uint8_t  *base;
	uint64_t basePA;
	uint32_t size;
};

typedef struct vmxnet3_rx_queue {
	struct rte_mempool          *mp;
	struct vmxnet3_hw           *hw;
	struct vmxnet3_cmd_ring     cmd_ring[VMXNET3_RX_CMDRING_SIZE];
	struct vmxnet3_comp_ring    comp_ring;
	struct vmxnet3_rx_data_ring data_ring;
	uint16_t                    data_desc_size;
	uint32_t                    qid1;
	uint32_t                    qid2;
	/* rqID in RCD for buffer from data ring */
	uint32_t                    data_ring_qid;
	Vmxnet3_RxQueueDesc         *shared;
	struct rte_mbuf             *start_seg;
	struct rte_mbuf             *last_seg;
	struct vmxnet3_rxq_stats    stats;
	const struct rte_memzone    *mz;
	bool                        stopped;
	uint16_t                    queue_id;      /**< Device RX queue index. */
	uint16_t                    port_id;       /**< Device port identifier. */
} vmxnet3_rx_queue_t;

#endif /* _VMXNET3_RING_H_ */
Commit	Line	Data
9f95a23c TL	1	/* SPDX-License-Identifier: BSD-3-Clause
9f95a23c TL	2	* Copyright(c) 2010-2014 Intel Corporation
7c673cae FG	3	*/
	4
	5	#ifndef _VMXNET3_RING_H_
	6	#define _VMXNET3_RING_H_
	7
	8	#define VMXNET3_RX_CMDRING_SIZE 2
	9
	10	#define VMXNET3_DRIVER_VERSION_NUM 0x01012000
	11
	12	/* Default ring size */
	13	#define VMXNET3_DEF_TX_RING_SIZE 512
	14	#define VMXNET3_DEF_RX_RING_SIZE 128
	15
11fdf7f2	16	/* Default rx data ring desc size */
9f95a23c	17	#define VMXNET3_DEF_RXDATA_DESC_SIZE 256
11fdf7f2	18
7c673cae FG	19	#define VMXNET3_SUCCESS 0
	20	#define VMXNET3_FAIL -1
	21
	22	#define TRUE 1
	23	#define FALSE 0
	24
	25
	26	typedef struct vmxnet3_buf_info {
	27	uint16_t len;
	28	struct rte_mbuf *m;
	29	uint64_t bufPA;
	30	} vmxnet3_buf_info_t;
	31
	32	typedef struct vmxnet3_cmd_ring {
	33	vmxnet3_buf_info_t *buf_info;
	34	uint32_t size;
	35	uint32_t next2fill;
	36	uint32_t next2comp;
	37	uint8_t gen;
	38	uint8_t rid;
	39	Vmxnet3_GenericDesc *base;
	40	uint64_t basePA;
	41	} vmxnet3_cmd_ring_t;
	42
	43	static inline void
	44	vmxnet3_cmd_ring_adv_next2fill(struct vmxnet3_cmd_ring *ring)
	45	{
	46	ring->next2fill++;
	47	if (unlikely(ring->next2fill == ring->size)) {
	48	ring->next2fill = 0;
	49	ring->gen = (uint8_t)(ring->gen ^ 1);
	50	}
	51	}
	52
	53	static inline void
	54	vmxnet3_cmd_ring_adv_next2comp(struct vmxnet3_cmd_ring *ring)
	55	{
	56	VMXNET3_INC_RING_IDX_ONLY(ring->next2comp, ring->size);
	57	}
	58
	59	static inline uint32_t
	60	vmxnet3_cmd_ring_desc_avail(struct vmxnet3_cmd_ring *ring)
	61	{
	62	return (ring->next2comp > ring->next2fill ? 0 : ring->size) +
	63	ring->next2comp - ring->next2fill - 1;
	64	}
	65
	66	static inline bool
	67	vmxnet3_cmd_ring_desc_empty(struct vmxnet3_cmd_ring *ring)
	68	{
	69	return ring->next2comp == ring->next2fill;
	70	}
	71
	72	typedef struct vmxnet3_comp_ring {
	73	uint32_t size;
	74	uint32_t next2proc;
	75	uint8_t gen;
	76	uint8_t intr_idx;
	77	Vmxnet3_GenericDesc *base;
	78	uint64_t basePA;
	79	} vmxnet3_comp_ring_t;
	80
	81	struct vmxnet3_data_ring {
	82	struct Vmxnet3_TxDataDesc *base;
83	uint32_t size;
84	uint64_t basePA;
85	};
86
87	static inline void
88	vmxnet3_comp_ring_adv_next2proc(struct vmxnet3_comp_ring *ring)
89	{
90	ring->next2proc++;
91	if (unlikely(ring->next2proc == ring->size)) {
92	ring->next2proc = 0;
93	ring->gen = (uint8_t)(ring->gen ^ 1);
94	}
95	}
96
97	struct vmxnet3_txq_stats {
98	uint64_t drop_total; /* # of pkts dropped by the driver,
99	* the counters below track droppings due to
100	* different reasons
101	*/
102	uint64_t drop_too_many_segs;
103	uint64_t drop_tso;
104	uint64_t tx_ring_full;
105	};
106
107	typedef struct vmxnet3_tx_queue {
108	struct vmxnet3_hw *hw;
109	struct vmxnet3_cmd_ring cmd_ring;
110	struct vmxnet3_comp_ring comp_ring;
111	struct vmxnet3_data_ring data_ring;
112	uint32_t qid;
113	struct Vmxnet3_TxQueueDesc *shared;
114	struct vmxnet3_txq_stats stats;
11fdf7f2	115	const struct rte_memzone *mz;
7c673cae FG	116	bool stopped;
7c673cae FG	117	uint16_t queue_id; /*< Device TX queue index. /
9f95a23c	118	uint16_t port_id; /*< Device port identifier. /
11fdf7f2	119	uint16_t txdata_desc_size;
7c673cae FG	120	} vmxnet3_tx_queue_t;
	121
	122	struct vmxnet3_rxq_stats {
	123	uint64_t drop_total;
	124	uint64_t drop_err;
	125	uint64_t drop_fcs;
	126	uint64_t rx_buf_alloc_failure;
	127	};
	128
11fdf7f2 TL	129	struct vmxnet3_rx_data_ring {
	130	uint8_t *base;
	131	uint64_t basePA;
	132	uint32_t size;
	133	};
	134
7c673cae FG	135	typedef struct vmxnet3_rx_queue {
	136	struct rte_mempool *mp;
	137	struct vmxnet3_hw *hw;
	138	struct vmxnet3_cmd_ring cmd_ring[VMXNET3_RX_CMDRING_SIZE];
	139	struct vmxnet3_comp_ring comp_ring;
11fdf7f2 TL	140	struct vmxnet3_rx_data_ring data_ring;
11fdf7f2 TL	141	uint16_t data_desc_size;
7c673cae FG	142	uint32_t qid1;
7c673cae FG	143	uint32_t qid2;
11fdf7f2 TL	144	/* rqID in RCD for buffer from data ring */
11fdf7f2 TL	145	uint32_t data_ring_qid;
7c673cae FG	146	Vmxnet3_RxQueueDesc *shared;
	147	struct rte_mbuf *start_seg;
	148	struct rte_mbuf *last_seg;
	149	struct vmxnet3_rxq_stats stats;
11fdf7f2	150	const struct rte_memzone *mz;
7c673cae FG	151	bool stopped;
7c673cae FG	152	uint16_t queue_id; /*< Device RX queue index. /
9f95a23c	153	uint16_t port_id; /*< Device port identifier. /
7c673cae FG	154	} vmxnet3_rx_queue_t;
	155
	156	#endif /* _VMXNET3_RING_H_ */