[mirror_ubuntu-bionic-kernel.git] / drivers / net / ethernet / cavium / thunder / nicvf_queues.h

/*
 * Copyright (C) 2015 Cavium, Inc.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License
 * as published by the Free Software Foundation.
 */

#ifndef NICVF_QUEUES_H
#define NICVF_QUEUES_H

#include <linux/netdevice.h>
#include "q_struct.h"

#define MAX_QUEUE_SET			128
#define MAX_RCV_QUEUES_PER_QS		8
#define MAX_RCV_BUF_DESC_RINGS_PER_QS	2
#define MAX_SND_QUEUES_PER_QS		8
#define MAX_CMP_QUEUES_PER_QS		8

/* VF's queue interrupt ranges */
#define	NICVF_INTR_ID_CQ		0
#define	NICVF_INTR_ID_SQ		8
#define	NICVF_INTR_ID_RBDR		16
#define	NICVF_INTR_ID_MISC		18
#define	NICVF_INTR_ID_QS_ERR		19

#define	for_each_cq_irq(irq)	\
	for (irq = NICVF_INTR_ID_CQ; irq < NICVF_INTR_ID_SQ; irq++)
#define	for_each_sq_irq(irq)	\
	for (irq = NICVF_INTR_ID_SQ; irq < NICVF_INTR_ID_RBDR; irq++)
#define	for_each_rbdr_irq(irq)	\
	for (irq = NICVF_INTR_ID_RBDR; irq < NICVF_INTR_ID_MISC; irq++)

#define RBDR_SIZE0		0ULL /* 8K entries */
#define RBDR_SIZE1		1ULL /* 16K entries */
#define RBDR_SIZE2		2ULL /* 32K entries */
#define RBDR_SIZE3		3ULL /* 64K entries */
#define RBDR_SIZE4		4ULL /* 126K entries */
#define RBDR_SIZE5		5ULL /* 256K entries */
#define RBDR_SIZE6		6ULL /* 512K entries */

#define SND_QUEUE_SIZE0		0ULL /* 1K entries */
#define SND_QUEUE_SIZE1		1ULL /* 2K entries */
#define SND_QUEUE_SIZE2		2ULL /* 4K entries */
#define SND_QUEUE_SIZE3		3ULL /* 8K entries */
#define SND_QUEUE_SIZE4		4ULL /* 16K entries */
#define SND_QUEUE_SIZE5		5ULL /* 32K entries */
#define SND_QUEUE_SIZE6		6ULL /* 64K entries */

#define CMP_QUEUE_SIZE0		0ULL /* 1K entries */
#define CMP_QUEUE_SIZE1		1ULL /* 2K entries */
#define CMP_QUEUE_SIZE2		2ULL /* 4K entries */
#define CMP_QUEUE_SIZE3		3ULL /* 8K entries */
#define CMP_QUEUE_SIZE4		4ULL /* 16K entries */
#define CMP_QUEUE_SIZE5		5ULL /* 32K entries */
#define CMP_QUEUE_SIZE6		6ULL /* 64K entries */

/* Default queue count per QS, its lengths and threshold values */
#define DEFAULT_RBDR_CNT	1

#define SND_QSIZE		SND_QUEUE_SIZE2
#define SND_QUEUE_LEN		(1ULL << (SND_QSIZE + 10))
#define MAX_SND_QUEUE_LEN	(1ULL << (SND_QUEUE_SIZE6 + 10))
#define SND_QUEUE_THRESH	2ULL
#define MIN_SQ_DESC_PER_PKT_XMIT	2
/* Since timestamp not enabled, otherwise 2 */
#define MAX_CQE_PER_PKT_XMIT		1

/* Keep CQ and SQ sizes same, if timestamping
 * is enabled this equation will change.
 */
#define CMP_QSIZE		CMP_QUEUE_SIZE2
#define CMP_QUEUE_LEN		(1ULL << (CMP_QSIZE + 10))
#define CMP_QUEUE_CQE_THRESH	(NAPI_POLL_WEIGHT / 2)
#define CMP_QUEUE_TIMER_THRESH	80 /* ~2usec */

#define RBDR_SIZE		RBDR_SIZE0
#define RCV_BUF_COUNT		(1ULL << (RBDR_SIZE + 13))
#define MAX_RCV_BUF_COUNT	(1ULL << (RBDR_SIZE6 + 13))
#define RBDR_THRESH		(RCV_BUF_COUNT / 2)
#define DMA_BUFFER_LEN		2048 /* In multiples of 128bytes */
#define RCV_FRAG_LEN	 (SKB_DATA_ALIGN(DMA_BUFFER_LEN + NET_SKB_PAD) + \
			 SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))

#define MAX_CQES_FOR_TX		((SND_QUEUE_LEN / MIN_SQ_DESC_PER_PKT_XMIT) * \
				 MAX_CQE_PER_PKT_XMIT)
/* Calculate number of CQEs to reserve for all SQEs.
 * Its 1/256th level of CQ size.
 * '+ 1' to account for pipelining
 */
#define RQ_CQ_DROP		((256 / (CMP_QUEUE_LEN / \
				 (CMP_QUEUE_LEN - MAX_CQES_FOR_TX))) + 1)

/* Descriptor size in bytes */
#define SND_QUEUE_DESC_SIZE	16
#define CMP_QUEUE_DESC_SIZE	512

/* Buffer / descriptor alignments */
#define NICVF_RCV_BUF_ALIGN		7
#define NICVF_RCV_BUF_ALIGN_BYTES	(1ULL << NICVF_RCV_BUF_ALIGN)
#define NICVF_CQ_BASE_ALIGN_BYTES	512  /* 9 bits */
#define NICVF_SQ_BASE_ALIGN_BYTES	128  /* 7 bits */

#define NICVF_ALIGNED_ADDR(ADDR, ALIGN_BYTES)	ALIGN(ADDR, ALIGN_BYTES)

/* Queue enable/disable */
#define NICVF_SQ_EN		BIT_ULL(19)

/* Queue reset */
#define NICVF_CQ_RESET		BIT_ULL(41)
#define NICVF_SQ_RESET		BIT_ULL(17)
#define NICVF_RBDR_RESET	BIT_ULL(43)

enum CQ_RX_ERRLVL_E {
	CQ_ERRLVL_MAC,
	CQ_ERRLVL_L2,
	CQ_ERRLVL_L3,
	CQ_ERRLVL_L4,
};

enum CQ_RX_ERROP_E {
	CQ_RX_ERROP_RE_NONE = 0x0,
	CQ_RX_ERROP_RE_PARTIAL = 0x1,
	CQ_RX_ERROP_RE_JABBER = 0x2,
	CQ_RX_ERROP_RE_FCS = 0x7,
	CQ_RX_ERROP_RE_TERMINATE = 0x9,
	CQ_RX_ERROP_RE_RX_CTL = 0xb,
	CQ_RX_ERROP_PREL2_ERR = 0x1f,
	CQ_RX_ERROP_L2_FRAGMENT = 0x20,
	CQ_RX_ERROP_L2_OVERRUN = 0x21,
	CQ_RX_ERROP_L2_PFCS = 0x22,
	CQ_RX_ERROP_L2_PUNY = 0x23,
	CQ_RX_ERROP_L2_MAL = 0x24,
	CQ_RX_ERROP_L2_OVERSIZE = 0x25,
	CQ_RX_ERROP_L2_UNDERSIZE = 0x26,
	CQ_RX_ERROP_L2_LENMISM = 0x27,
	CQ_RX_ERROP_L2_PCLP = 0x28,
	CQ_RX_ERROP_IP_NOT = 0x41,
	CQ_RX_ERROP_IP_CSUM_ERR = 0x42,
	CQ_RX_ERROP_IP_MAL = 0x43,
	CQ_RX_ERROP_IP_MALD = 0x44,
	CQ_RX_ERROP_IP_HOP = 0x45,
	CQ_RX_ERROP_L3_ICRC = 0x46,
	CQ_RX_ERROP_L3_PCLP = 0x47,
	CQ_RX_ERROP_L4_MAL = 0x61,
	CQ_RX_ERROP_L4_CHK = 0x62,
	CQ_RX_ERROP_UDP_LEN = 0x63,
	CQ_RX_ERROP_L4_PORT = 0x64,
	CQ_RX_ERROP_TCP_FLAG = 0x65,
	CQ_RX_ERROP_TCP_OFFSET = 0x66,
	CQ_RX_ERROP_L4_PCLP = 0x67,
	CQ_RX_ERROP_RBDR_TRUNC = 0x70,
};

enum CQ_TX_ERROP_E {
	CQ_TX_ERROP_GOOD = 0x0,
	CQ_TX_ERROP_DESC_FAULT = 0x10,
	CQ_TX_ERROP_HDR_CONS_ERR = 0x11,
	CQ_TX_ERROP_SUBDC_ERR = 0x12,
	CQ_TX_ERROP_MAX_SIZE_VIOL = 0x13,
	CQ_TX_ERROP_IMM_SIZE_OFLOW = 0x80,
	CQ_TX_ERROP_DATA_SEQUENCE_ERR = 0x81,
	CQ_TX_ERROP_MEM_SEQUENCE_ERR = 0x82,
	CQ_TX_ERROP_LOCK_VIOL = 0x83,
	CQ_TX_ERROP_DATA_FAULT = 0x84,
	CQ_TX_ERROP_TSTMP_CONFLICT = 0x85,
	CQ_TX_ERROP_TSTMP_TIMEOUT = 0x86,
	CQ_TX_ERROP_MEM_FAULT = 0x87,
	CQ_TX_ERROP_CK_OVERLAP = 0x88,
	CQ_TX_ERROP_CK_OFLOW = 0x89,
	CQ_TX_ERROP_ENUM_LAST = 0x8a,
};

enum RQ_SQ_STATS {
	RQ_SQ_STATS_OCTS,
	RQ_SQ_STATS_PKTS,
};

struct rx_tx_queue_stats {
	u64	bytes;
	u64	pkts;
} ____cacheline_aligned_in_smp;

struct q_desc_mem {
	dma_addr_t	dma;
	u64		size;
	u16		q_len;
	dma_addr_t	phys_base;
	void		*base;
	void		*unalign_base;
};

struct rbdr {
	bool		enable;
	u32		dma_size;
	u32		frag_len;
	u32		thresh;		/* Threshold level for interrupt */
	void		*desc;
	u32		head;
	u32		tail;
	struct q_desc_mem   dmem;
} ____cacheline_aligned_in_smp;

struct rcv_queue {
	bool		enable;
	struct	rbdr	*rbdr_start;
	struct	rbdr	*rbdr_cont;
	bool		en_tcp_reassembly;
	u8		cq_qs;  /* CQ's QS to which this RQ is assigned */
	u8		cq_idx; /* CQ index (0 to 7) in the QS */
	u8		cont_rbdr_qs;      /* Continue buffer ptrs - QS num */
	u8		cont_qs_rbdr_idx;  /* RBDR idx in the cont QS */
	u8		start_rbdr_qs;     /* First buffer ptrs - QS num */
	u8		start_qs_rbdr_idx; /* RBDR idx in the above QS */
	u8		caching;
	struct		rx_tx_queue_stats stats;
} ____cacheline_aligned_in_smp;

struct cmp_queue {
	bool		enable;
	u16		thresh;
	spinlock_t	lock;  /* lock to serialize processing CQEs */
	void		*desc;
	struct q_desc_mem   dmem;
	int		irq;
} ____cacheline_aligned_in_smp;

struct snd_queue {
	bool		enable;
	u8		cq_qs;  /* CQ's QS to which this SQ is pointing */
	u8		cq_idx; /* CQ index (0 to 7) in the above QS */
	u16		thresh;
	atomic_t	free_cnt;
	u32		head;
	u32		tail;
	u64		*skbuff;
	void		*desc;

#define	TSO_HEADER_SIZE	128
	/* For TSO segment's header */
	char		*tso_hdrs;
	dma_addr_t	tso_hdrs_phys;

	cpumask_t	affinity_mask;
	struct q_desc_mem   dmem;
	struct rx_tx_queue_stats stats;
} ____cacheline_aligned_in_smp;

struct queue_set {
	bool		enable;
	bool		be_en;
	u8		vnic_id;
	u8		rq_cnt;
	u8		cq_cnt;
	u64		cq_len;
	u8		sq_cnt;
	u64		sq_len;
	u8		rbdr_cnt;
	u64		rbdr_len;
	struct	rcv_queue	rq[MAX_RCV_QUEUES_PER_QS];
	struct	cmp_queue	cq[MAX_CMP_QUEUES_PER_QS];
	struct	snd_queue	sq[MAX_SND_QUEUES_PER_QS];
	struct	rbdr		rbdr[MAX_RCV_BUF_DESC_RINGS_PER_QS];
} ____cacheline_aligned_in_smp;

#define GET_RBDR_DESC(RING, idx)\
		(&(((struct rbdr_entry_t *)((RING)->desc))[idx]))
#define GET_SQ_DESC(RING, idx)\
		(&(((struct sq_hdr_subdesc *)((RING)->desc))[idx]))
#define GET_CQ_DESC(RING, idx)\
		(&(((union cq_desc_t *)((RING)->desc))[idx]))

/* CQ status bits */
#define	CQ_WR_FULL	BIT(26)
#define	CQ_WR_DISABLE	BIT(25)
#define	CQ_WR_FAULT	BIT(24)
#define	CQ_CQE_COUNT	(0xFFFF << 0)

#define	CQ_ERR_MASK	(CQ_WR_FULL | CQ_WR_DISABLE | CQ_WR_FAULT)

void nicvf_config_vlan_stripping(struct nicvf *nic,
				 netdev_features_t features);
int nicvf_set_qset_resources(struct nicvf *nic);
int nicvf_config_data_transfer(struct nicvf *nic, bool enable);
void nicvf_qset_config(struct nicvf *nic, bool enable);
void nicvf_cmp_queue_config(struct nicvf *nic, struct queue_set *qs,
			    int qidx, bool enable);

void nicvf_sq_enable(struct nicvf *nic, struct snd_queue *sq, int qidx);
void nicvf_sq_disable(struct nicvf *nic, int qidx);
void nicvf_put_sq_desc(struct snd_queue *sq, int desc_cnt);
void nicvf_sq_free_used_descs(struct net_device *netdev,
			      struct snd_queue *sq, int qidx);
int nicvf_sq_append_skb(struct nicvf *nic, struct sk_buff *skb);

struct sk_buff *nicvf_get_rcv_skb(struct nicvf *nic, struct cqe_rx_t *cqe_rx);
void nicvf_rbdr_task(unsigned long data);
void nicvf_rbdr_work(struct work_struct *work);

void nicvf_enable_intr(struct nicvf *nic, int int_type, int q_idx);
void nicvf_disable_intr(struct nicvf *nic, int int_type, int q_idx);
void nicvf_clear_intr(struct nicvf *nic, int int_type, int q_idx);
int nicvf_is_intr_enabled(struct nicvf *nic, int int_type, int q_idx);

/* Register access APIs */
void nicvf_reg_write(struct nicvf *nic, u64 offset, u64 val);
u64  nicvf_reg_read(struct nicvf *nic, u64 offset);
void nicvf_qset_reg_write(struct nicvf *nic, u64 offset, u64 val);
u64 nicvf_qset_reg_read(struct nicvf *nic, u64 offset);
void nicvf_queue_reg_write(struct nicvf *nic, u64 offset,
			   u64 qidx, u64 val);
u64  nicvf_queue_reg_read(struct nicvf *nic,
			  u64 offset, u64 qidx);

/* Stats */
void nicvf_update_rq_stats(struct nicvf *nic, int rq_idx);
void nicvf_update_sq_stats(struct nicvf *nic, int sq_idx);
int nicvf_check_cqe_rx_errs(struct nicvf *nic, struct cqe_rx_t *cqe_rx);
int nicvf_check_cqe_tx_errs(struct nicvf *nic, struct cqe_send_t *cqe_tx);
#endif /* NICVF_QUEUES_H */
Commit	Line	Data
4863dea3 SG	1	/*
	2	* Copyright (C) 2015 Cavium, Inc.
	3	*
	4	* This program is free software; you can redistribute it and/or modify it
	5	* under the terms of version 2 of the GNU General Public License
	6	* as published by the Free Software Foundation.
	7	*/
	8
	9	#ifndef NICVF_QUEUES_H
	10	#define NICVF_QUEUES_H
	11
	12	#include <linux/netdevice.h>
	13	#include "q_struct.h"
	14
	15	#define MAX_QUEUE_SET 128
	16	#define MAX_RCV_QUEUES_PER_QS 8
	17	#define MAX_RCV_BUF_DESC_RINGS_PER_QS 2
	18	#define MAX_SND_QUEUES_PER_QS 8
	19	#define MAX_CMP_QUEUES_PER_QS 8
	20
	21	/* VF's queue interrupt ranges */
	22	#define NICVF_INTR_ID_CQ 0
	23	#define NICVF_INTR_ID_SQ 8
	24	#define NICVF_INTR_ID_RBDR 16
	25	#define NICVF_INTR_ID_MISC 18
	26	#define NICVF_INTR_ID_QS_ERR 19
	27
	28	#define for_each_cq_irq(irq) \
	29	for (irq = NICVF_INTR_ID_CQ; irq < NICVF_INTR_ID_SQ; irq++)
	30	#define for_each_sq_irq(irq) \
	31	for (irq = NICVF_INTR_ID_SQ; irq < NICVF_INTR_ID_RBDR; irq++)
	32	#define for_each_rbdr_irq(irq) \
	33	for (irq = NICVF_INTR_ID_RBDR; irq < NICVF_INTR_ID_MISC; irq++)
	34
	35	#define RBDR_SIZE0 0ULL /* 8K entries */
	36	#define RBDR_SIZE1 1ULL /* 16K entries */
	37	#define RBDR_SIZE2 2ULL /* 32K entries */
	38	#define RBDR_SIZE3 3ULL /* 64K entries */
	39	#define RBDR_SIZE4 4ULL /* 126K entries */
	40	#define RBDR_SIZE5 5ULL /* 256K entries */
	41	#define RBDR_SIZE6 6ULL /* 512K entries */
	42
	43	#define SND_QUEUE_SIZE0 0ULL /* 1K entries */
	44	#define SND_QUEUE_SIZE1 1ULL /* 2K entries */
	45	#define SND_QUEUE_SIZE2 2ULL /* 4K entries */
	46	#define SND_QUEUE_SIZE3 3ULL /* 8K entries */
	47	#define SND_QUEUE_SIZE4 4ULL /* 16K entries */
	48	#define SND_QUEUE_SIZE5 5ULL /* 32K entries */
	49	#define SND_QUEUE_SIZE6 6ULL /* 64K entries */
	50
	51	#define CMP_QUEUE_SIZE0 0ULL /* 1K entries */
	52	#define CMP_QUEUE_SIZE1 1ULL /* 2K entries */
	53	#define CMP_QUEUE_SIZE2 2ULL /* 4K entries */
	54	#define CMP_QUEUE_SIZE3 3ULL /* 8K entries */
	55	#define CMP_QUEUE_SIZE4 4ULL /* 16K entries */
	56	#define CMP_QUEUE_SIZE5 5ULL /* 32K entries */
	57	#define CMP_QUEUE_SIZE6 6ULL /* 64K entries */
	58
	59	/* Default queue count per QS, its lengths and threshold values */
3a397ebe	60	#define DEFAULT_RBDR_CNT 1
4863dea3	61
32c1b965	62	#define SND_QSIZE SND_QUEUE_SIZE2
4863dea3 SG	63	#define SND_QUEUE_LEN (1ULL << (SND_QSIZE + 10))
	64	#define MAX_SND_QUEUE_LEN (1ULL << (SND_QUEUE_SIZE6 + 10))
	65	#define SND_QUEUE_THRESH 2ULL
	66	#define MIN_SQ_DESC_PER_PKT_XMIT 2
	67	/* Since timestamp not enabled, otherwise 2 */
	68	#define MAX_CQE_PER_PKT_XMIT 1
	69
32c1b965 SG	70	/* Keep CQ and SQ sizes same, if timestamping
	71	* is enabled this equation will change.
	72	*/
	73	#define CMP_QSIZE CMP_QUEUE_SIZE2
4863dea3	74	#define CMP_QUEUE_LEN (1ULL << (CMP_QSIZE + 10))
b9687b48	75	#define CMP_QUEUE_CQE_THRESH (NAPI_POLL_WEIGHT / 2)
006394a7	76	#define CMP_QUEUE_TIMER_THRESH 80 /* ~2usec */
4863dea3 SG	77
	78	#define RBDR_SIZE RBDR_SIZE0
	79	#define RCV_BUF_COUNT (1ULL << (RBDR_SIZE + 13))
	80	#define MAX_RCV_BUF_COUNT (1ULL << (RBDR_SIZE6 + 13))
	81	#define RBDR_THRESH (RCV_BUF_COUNT / 2)
	82	#define DMA_BUFFER_LEN 2048 /* In multiples of 128bytes */
668dda06 SG	83	#define RCV_FRAG_LEN (SKB_DATA_ALIGN(DMA_BUFFER_LEN + NET_SKB_PAD) + \
668dda06 SG	84	SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))
4863dea3 SG	85
	86	#define MAX_CQES_FOR_TX ((SND_QUEUE_LEN / MIN_SQ_DESC_PER_PKT_XMIT) * \
	87	MAX_CQE_PER_PKT_XMIT)
32c1b965 SG	88	/* Calculate number of CQEs to reserve for all SQEs.
	89	* Its 1/256th level of CQ size.
	90	* '+ 1' to account for pipelining
	91	*/
	92	#define RQ_CQ_DROP ((256 / (CMP_QUEUE_LEN / \
	93	(CMP_QUEUE_LEN - MAX_CQES_FOR_TX))) + 1)
4863dea3 SG	94
	95	/* Descriptor size in bytes */
	96	#define SND_QUEUE_DESC_SIZE 16
	97	#define CMP_QUEUE_DESC_SIZE 512
	98
	99	/* Buffer / descriptor alignments */
	100	#define NICVF_RCV_BUF_ALIGN 7
	101	#define NICVF_RCV_BUF_ALIGN_BYTES (1ULL << NICVF_RCV_BUF_ALIGN)
	102	#define NICVF_CQ_BASE_ALIGN_BYTES 512 /* 9 bits */
	103	#define NICVF_SQ_BASE_ALIGN_BYTES 128 /* 7 bits */
	104
	105	#define NICVF_ALIGNED_ADDR(ADDR, ALIGN_BYTES) ALIGN(ADDR, ALIGN_BYTES)
4863dea3 SG	106
	107	/* Queue enable/disable */
	108	#define NICVF_SQ_EN BIT_ULL(19)
	109
	110	/* Queue reset */
	111	#define NICVF_CQ_RESET BIT_ULL(41)
	112	#define NICVF_SQ_RESET BIT_ULL(17)
	113	#define NICVF_RBDR_RESET BIT_ULL(43)
	114
	115	enum CQ_RX_ERRLVL_E {
	116	CQ_ERRLVL_MAC,
	117	CQ_ERRLVL_L2,
	118	CQ_ERRLVL_L3,
	119	CQ_ERRLVL_L4,
	120	};
	121
	122	enum CQ_RX_ERROP_E {
	123	CQ_RX_ERROP_RE_NONE = 0x0,
	124	CQ_RX_ERROP_RE_PARTIAL = 0x1,
	125	CQ_RX_ERROP_RE_JABBER = 0x2,
	126	CQ_RX_ERROP_RE_FCS = 0x7,
	127	CQ_RX_ERROP_RE_TERMINATE = 0x9,
	128	CQ_RX_ERROP_RE_RX_CTL = 0xb,
	129	CQ_RX_ERROP_PREL2_ERR = 0x1f,
	130	CQ_RX_ERROP_L2_FRAGMENT = 0x20,
	131	CQ_RX_ERROP_L2_OVERRUN = 0x21,
	132	CQ_RX_ERROP_L2_PFCS = 0x22,
	133	CQ_RX_ERROP_L2_PUNY = 0x23,
	134	CQ_RX_ERROP_L2_MAL = 0x24,
	135	CQ_RX_ERROP_L2_OVERSIZE = 0x25,
	136	CQ_RX_ERROP_L2_UNDERSIZE = 0x26,
	137	CQ_RX_ERROP_L2_LENMISM = 0x27,
	138	CQ_RX_ERROP_L2_PCLP = 0x28,
	139	CQ_RX_ERROP_IP_NOT = 0x41,
	140	CQ_RX_ERROP_IP_CSUM_ERR = 0x42,
	141	CQ_RX_ERROP_IP_MAL = 0x43,
	142	CQ_RX_ERROP_IP_MALD = 0x44,
	143	CQ_RX_ERROP_IP_HOP = 0x45,
	144	CQ_RX_ERROP_L3_ICRC = 0x46,
	145	CQ_RX_ERROP_L3_PCLP = 0x47,
	146	CQ_RX_ERROP_L4_MAL = 0x61,
	147	CQ_RX_ERROP_L4_CHK = 0x62,
	148	CQ_RX_ERROP_UDP_LEN = 0x63,
	149	CQ_RX_ERROP_L4_PORT = 0x64,
	150	CQ_RX_ERROP_TCP_FLAG = 0x65,
	151	CQ_RX_ERROP_TCP_OFFSET = 0x66,
	152	CQ_RX_ERROP_L4_PCLP = 0x67,
	153	CQ_RX_ERROP_RBDR_TRUNC = 0x70,
	154	};
	155
	156	enum CQ_TX_ERROP_E {
	157	CQ_TX_ERROP_GOOD = 0x0,
	158	CQ_TX_ERROP_DESC_FAULT = 0x10,
	159	CQ_TX_ERROP_HDR_CONS_ERR = 0x11,
	160	CQ_TX_ERROP_SUBDC_ERR = 0x12,
712c3185	161	CQ_TX_ERROP_MAX_SIZE_VIOL = 0x13,
4863dea3 SG	162	CQ_TX_ERROP_IMM_SIZE_OFLOW = 0x80,
	163	CQ_TX_ERROP_DATA_SEQUENCE_ERR = 0x81,
	164	CQ_TX_ERROP_MEM_SEQUENCE_ERR = 0x82,
	165	CQ_TX_ERROP_LOCK_VIOL = 0x83,
	166	CQ_TX_ERROP_DATA_FAULT = 0x84,
	167	CQ_TX_ERROP_TSTMP_CONFLICT = 0x85,
	168	CQ_TX_ERROP_TSTMP_TIMEOUT = 0x86,
	169	CQ_TX_ERROP_MEM_FAULT = 0x87,
	170	CQ_TX_ERROP_CK_OVERLAP = 0x88,
	171	CQ_TX_ERROP_CK_OFLOW = 0x89,
	172	CQ_TX_ERROP_ENUM_LAST = 0x8a,
	173	};
	174
4863dea3 SG	175	enum RQ_SQ_STATS {
	176	RQ_SQ_STATS_OCTS,
	177	RQ_SQ_STATS_PKTS,
	178	};
	179
	180	struct rx_tx_queue_stats {
	181	u64 bytes;
	182	u64 pkts;
	183	} ____cacheline_aligned_in_smp;
	184
	185	struct q_desc_mem {
	186	dma_addr_t dma;
	187	u64 size;
	188	u16 q_len;
	189	dma_addr_t phys_base;
	190	void *base;
	191	void *unalign_base;
	192	};
	193
	194	struct rbdr {
	195	bool enable;
	196	u32 dma_size;
	197	u32 frag_len;
	198	u32 thresh; /* Threshold level for interrupt */
	199	void *desc;
	200	u32 head;
	201	u32 tail;
	202	struct q_desc_mem dmem;
	203	} ____cacheline_aligned_in_smp;
	204
	205	struct rcv_queue {
	206	bool enable;
	207	struct rbdr *rbdr_start;
	208	struct rbdr *rbdr_cont;
	209	bool en_tcp_reassembly;
	210	u8 cq_qs; /* CQ's QS to which this RQ is assigned */
	211	u8 cq_idx; /* CQ index (0 to 7) in the QS */
	212	u8 cont_rbdr_qs; /* Continue buffer ptrs - QS num */
	213	u8 cont_qs_rbdr_idx; /* RBDR idx in the cont QS */
	214	u8 start_rbdr_qs; /* First buffer ptrs - QS num */
	215	u8 start_qs_rbdr_idx; /* RBDR idx in the above QS */
	216	u8 caching;
	217	struct rx_tx_queue_stats stats;
	218	} ____cacheline_aligned_in_smp;
	219
	220	struct cmp_queue {
	221	bool enable;
	222	u16 thresh;
	223	spinlock_t lock; /* lock to serialize processing CQEs */
	224	void *desc;
	225	struct q_desc_mem dmem;
39ad6eea	226	int irq;
4863dea3 SG	227	} ____cacheline_aligned_in_smp;
	228
	229	struct snd_queue {
	230	bool enable;
	231	u8 cq_qs; /* CQ's QS to which this SQ is pointing */
	232	u8 cq_idx; /* CQ index (0 to 7) in the above QS */
	233	u16 thresh;
	234	atomic_t free_cnt;
	235	u32 head;
	236	u32 tail;
	237	u64 *skbuff;
	238	void *desc;
	239
	240	#define TSO_HEADER_SIZE 128
	241	/* For TSO segment's header */
	242	char *tso_hdrs;
	243	dma_addr_t tso_hdrs_phys;
	244
	245	cpumask_t affinity_mask;
	246	struct q_desc_mem dmem;
	247	struct rx_tx_queue_stats stats;
	248	} ____cacheline_aligned_in_smp;
	249
	250	struct queue_set {
	251	bool enable;
	252	bool be_en;
	253	u8 vnic_id;
	254	u8 rq_cnt;
	255	u8 cq_cnt;
	256	u64 cq_len;
	257	u8 sq_cnt;
	258	u64 sq_len;
	259	u8 rbdr_cnt;
	260	u64 rbdr_len;
	261	struct rcv_queue rq[MAX_RCV_QUEUES_PER_QS];
	262	struct cmp_queue cq[MAX_CMP_QUEUES_PER_QS];
	263	struct snd_queue sq[MAX_SND_QUEUES_PER_QS];
	264	struct rbdr rbdr[MAX_RCV_BUF_DESC_RINGS_PER_QS];
	265	} ____cacheline_aligned_in_smp;
	266
	267	#define GET_RBDR_DESC(RING, idx)\
	268	(&(((struct rbdr_entry_t *)((RING)->desc))[idx]))
	269	#define GET_SQ_DESC(RING, idx)\
	270	(&(((struct sq_hdr_subdesc *)((RING)->desc))[idx]))
	271	#define GET_CQ_DESC(RING, idx)\
	272	(&(((union cq_desc_t *)((RING)->desc))[idx]))
	273
	274	/* CQ status bits */
	275	#define CQ_WR_FULL BIT(26)
	276	#define CQ_WR_DISABLE BIT(25)
	277	#define CQ_WR_FAULT BIT(24)
	278	#define CQ_CQE_COUNT (0xFFFF << 0)
	279
	280	#define CQ_ERR_MASK (CQ_WR_FULL \| CQ_WR_DISABLE \| CQ_WR_FAULT)
	281
aa2e259b SG	282	void nicvf_config_vlan_stripping(struct nicvf *nic,
aa2e259b SG	283	netdev_features_t features);
4863dea3 SG	284	int nicvf_set_qset_resources(struct nicvf *nic);
	285	int nicvf_config_data_transfer(struct nicvf *nic, bool enable);
	286	void nicvf_qset_config(struct nicvf *nic, bool enable);
	287	void nicvf_cmp_queue_config(struct nicvf nic, struct queue_set qs,
	288	int qidx, bool enable);
	289
	290	void nicvf_sq_enable(struct nicvf nic, struct snd_queue sq, int qidx);
	291	void nicvf_sq_disable(struct nicvf *nic, int qidx);
	292	void nicvf_put_sq_desc(struct snd_queue *sq, int desc_cnt);
	293	void nicvf_sq_free_used_descs(struct net_device *netdev,
	294	struct snd_queue *sq, int qidx);
	295	int nicvf_sq_append_skb(struct nicvf nic, struct sk_buff skb);
	296
	297	struct sk_buff nicvf_get_rcv_skb(struct nicvf nic, struct cqe_rx_t *cqe_rx);
	298	void nicvf_rbdr_task(unsigned long data);
	299	void nicvf_rbdr_work(struct work_struct *work);
	300
	301	void nicvf_enable_intr(struct nicvf *nic, int int_type, int q_idx);
	302	void nicvf_disable_intr(struct nicvf *nic, int int_type, int q_idx);
	303	void nicvf_clear_intr(struct nicvf *nic, int int_type, int q_idx);
	304	int nicvf_is_intr_enabled(struct nicvf *nic, int int_type, int q_idx);
	305
	306	/* Register access APIs */
	307	void nicvf_reg_write(struct nicvf *nic, u64 offset, u64 val);
	308	u64 nicvf_reg_read(struct nicvf *nic, u64 offset);
	309	void nicvf_qset_reg_write(struct nicvf *nic, u64 offset, u64 val);
	310	u64 nicvf_qset_reg_read(struct nicvf *nic, u64 offset);
	311	void nicvf_queue_reg_write(struct nicvf *nic, u64 offset,
	312	u64 qidx, u64 val);
	313	u64 nicvf_queue_reg_read(struct nicvf *nic,
	314	u64 offset, u64 qidx);
	315
	316	/* Stats */
	317	void nicvf_update_rq_stats(struct nicvf *nic, int rq_idx);
	318	void nicvf_update_sq_stats(struct nicvf *nic, int sq_idx);
ad2ecebd	319	int nicvf_check_cqe_rx_errs(struct nicvf nic, struct cqe_rx_t cqe_rx);
964cb69b	320	int nicvf_check_cqe_tx_errs(struct nicvf nic, struct cqe_send_t cqe_tx);
4863dea3	321	#endif /* NICVF_QUEUES_H */