[deliverable/linux.git] / drivers / net / ethernet / hisilicon / hns / hns_dsaf_rcb.h

/*
 * Copyright (c) 2014-2015 Hisilicon Limited.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 */

#ifndef _HNS_DSAF_RCB_H
#define _HNS_DSAF_RCB_H

#include <linux/netdevice.h>
#include <linux/platform_device.h>

#include "hnae.h"
#include "hns_dsaf_main.h"

struct rcb_common_cb;

#define HNS_RCB_IRQ_NUM_PER_QUEUE		2
#define HNS_RCB_IRQ_IDX_TX			0
#define HNS_RCB_IRQ_IDX_RX			1
#define HNS_RCB_TX_REG_OFFSET			0x40

#define HNS_RCB_SERVICE_NW_ENGINE_NUM		DSAF_COMM_CHN
#define HNS_RCB_DEBUG_NW_ENGINE_NUM		1
#define HNS_RCB_RING_MAX_BD_PER_PKT		3
#define HNS_RCB_RING_MAX_TXBD_PER_PKT		3
#define HNS_RCBV2_RING_MAX_TXBD_PER_PKT		8
#define HNS_RCB_MAX_PKT_SIZE MAC_MAX_MTU

#define HNS_RCB_RING_MAX_PENDING_BD		1024
#define HNS_RCB_RING_MIN_PENDING_BD		16

#define HNS_RCB_REG_OFFSET			0x10000

#define HNS_RCB_MAX_COALESCED_FRAMES		1023
#define HNS_RCB_MIN_COALESCED_FRAMES		1
#define HNS_RCB_DEF_COALESCED_FRAMES		50
#define HNS_RCB_CLK_FREQ_MHZ			350
#define HNS_RCB_MAX_COALESCED_USECS		0x3ff
#define HNS_RCB_DEF_COALESCED_USECS		3

#define HNS_RCB_COMMON_ENDIAN			1

#define HNS_BD_SIZE_512_TYPE			0
#define HNS_BD_SIZE_1024_TYPE			1
#define HNS_BD_SIZE_2048_TYPE			2
#define HNS_BD_SIZE_4096_TYPE			3

#define HNS_RCB_COMMON_DUMP_REG_NUM 80
#define HNS_RCB_RING_DUMP_REG_NUM 40
#define HNS_RING_STATIC_REG_NUM 28

#define HNS_DUMP_REG_NUM			500
#define HNS_STATIC_REG_NUM			12

#define HNS_TSO_MODE_8BD_32K			1
#define HNS_TSO_MDOE_4BD_16K			0

enum rcb_int_flag {
	RCB_INT_FLAG_TX = 0x1,
	RCB_INT_FLAG_RX = (0x1 << 1),
	RCB_INT_FLAG_MAX = (0x1 << 2),	/*must be the last element */
};

struct hns_ring_hw_stats {
	u64 tx_pkts;
	u64 ppe_tx_ok_pkts;
	u64 ppe_tx_drop_pkts;
	u64 rx_pkts;
	u64 ppe_rx_ok_pkts;
	u64 ppe_rx_drop_pkts;
};

struct ring_pair_cb {
	struct rcb_common_cb *rcb_common;	/*  ring belongs to */
	struct device *dev;	/*device for DMA mapping */
	struct hnae_queue q;

	u16 index;	/* global index in a rcb common device */
	u16 buf_size;

	int virq[HNS_RCB_IRQ_NUM_PER_QUEUE];

	u8 port_id_in_comm;
	u8 used_by_vf;

	struct hns_ring_hw_stats hw_stats;
};

struct rcb_common_cb {
	u8 __iomem *io_base;
	phys_addr_t phy_base;
	struct dsaf_device *dsaf_dev;
	u16 max_vfn;
	u16 max_q_per_vf;

	u8 comm_index;
	u32 ring_num;
	u32 desc_num; /*  desc num per queue*/

	struct ring_pair_cb ring_pair_cb[0];
};

int hns_rcb_buf_size2type(u32 buf_size);

int hns_rcb_common_get_cfg(struct dsaf_device *dsaf_dev, int comm_index);
void hns_rcb_common_free_cfg(struct dsaf_device *dsaf_dev, u32 comm_index);
int hns_rcb_common_init_hw(struct rcb_common_cb *rcb_common);
void hns_rcb_start(struct hnae_queue *q, u32 val);
void hns_rcb_get_cfg(struct rcb_common_cb *rcb_common);
void hns_rcb_get_queue_mode(enum dsaf_mode dsaf_mode, int comm_index,
			    u16 *max_vfn, u16 *max_q_per_vf);

void hns_rcb_common_init_commit_hw(struct rcb_common_cb *rcb_common);

void hns_rcb_ring_enable_hw(struct hnae_queue *q, u32 val);
void hns_rcb_int_clr_hw(struct hnae_queue *q, u32 flag);
void hns_rcb_int_ctrl_hw(struct hnae_queue *q, u32 flag, u32 enable);
void hns_rcbv2_int_ctrl_hw(struct hnae_queue *q, u32 flag, u32 mask);
void hns_rcbv2_int_clr_hw(struct hnae_queue *q, u32 flag);

void hns_rcb_init_hw(struct ring_pair_cb *ring);
void hns_rcb_reset_ring_hw(struct hnae_queue *q);
void hns_rcb_wait_fbd_clean(struct hnae_queue **qs, int q_num, u32 flag);
u32 hns_rcb_get_coalesced_frames(
	struct rcb_common_cb *rcb_common, u32 port_idx);
u32 hns_rcb_get_coalesce_usecs(
	struct rcb_common_cb *rcb_common, u32 port_idx);
int hns_rcb_set_coalesce_usecs(
	struct rcb_common_cb *rcb_common, u32 port_idx, u32 timeout);
int hns_rcb_set_coalesced_frames(
	struct rcb_common_cb *rcb_common, u32 port_idx, u32 coalesced_frames);
void hns_rcb_update_stats(struct hnae_queue *queue);

void hns_rcb_get_stats(struct hnae_queue *queue, u64 *data);

void hns_rcb_get_common_regs(struct rcb_common_cb *rcb_common, void *data);

int hns_rcb_get_ring_sset_count(int stringset);
int hns_rcb_get_common_regs_count(void);
int hns_rcb_get_ring_regs_count(void);

void hns_rcb_get_ring_regs(struct hnae_queue *queue, void *data);

void hns_rcb_get_strings(int stringset, u8 *data, int index);
#endif /* _HNS_DSAF_RCB_H */
Commit	Line	Data
511e6bc0	1	/*
	2	* Copyright (c) 2014-2015 Hisilicon Limited.
	3	*
	4	* This program is free software; you can redistribute it and/or modify
	5	* it under the terms of the GNU General Public License as published by
	6	* the Free Software Foundation; either version 2 of the License, or
	7	* (at your option) any later version.
	8	*/
	9
	10	#ifndef _HNS_DSAF_RCB_H
	11	#define _HNS_DSAF_RCB_H
	12
	13	#include <linux/netdevice.h>
	14	#include <linux/platform_device.h>
	15
	16	#include "hnae.h"
	17	#include "hns_dsaf_main.h"
	18
	19	struct rcb_common_cb;
	20
	21	#define HNS_RCB_IRQ_NUM_PER_QUEUE 2
	22	#define HNS_RCB_IRQ_IDX_TX 0
	23	#define HNS_RCB_IRQ_IDX_RX 1
	24	#define HNS_RCB_TX_REG_OFFSET 0x40
	25
	26	#define HNS_RCB_SERVICE_NW_ENGINE_NUM DSAF_COMM_CHN
	27	#define HNS_RCB_DEBUG_NW_ENGINE_NUM 1
	28	#define HNS_RCB_RING_MAX_BD_PER_PKT 3
13ac695e S	29	#define HNS_RCB_RING_MAX_TXBD_PER_PKT 3
13ac695e S	30	#define HNS_RCBV2_RING_MAX_TXBD_PER_PKT 8
511e6bc0	31	#define HNS_RCB_MAX_PKT_SIZE MAC_MAX_MTU
	32
	33	#define HNS_RCB_RING_MAX_PENDING_BD 1024
	34	#define HNS_RCB_RING_MIN_PENDING_BD 16
	35
	36	#define HNS_RCB_REG_OFFSET 0x10000
	37
	38	#define HNS_RCB_MAX_COALESCED_FRAMES 1023
	39	#define HNS_RCB_MIN_COALESCED_FRAMES 1
	40	#define HNS_RCB_DEF_COALESCED_FRAMES 50
43adc067 L	41	#define HNS_RCB_CLK_FREQ_MHZ 350
	42	#define HNS_RCB_MAX_COALESCED_USECS 0x3ff
	43	#define HNS_RCB_DEF_COALESCED_USECS 3
511e6bc0	44
	45	#define HNS_RCB_COMMON_ENDIAN 1
	46
	47	#define HNS_BD_SIZE_512_TYPE 0
	48	#define HNS_BD_SIZE_1024_TYPE 1
	49	#define HNS_BD_SIZE_2048_TYPE 2
	50	#define HNS_BD_SIZE_4096_TYPE 3
	51
	52	#define HNS_RCB_COMMON_DUMP_REG_NUM 80
	53	#define HNS_RCB_RING_DUMP_REG_NUM 40
	54	#define HNS_RING_STATIC_REG_NUM 28
	55
	56	#define HNS_DUMP_REG_NUM 500
	57	#define HNS_STATIC_REG_NUM 12
	58
918f618f	59	#define HNS_TSO_MODE_8BD_32K 1
	60	#define HNS_TSO_MDOE_4BD_16K 0
	61
511e6bc0	62	enum rcb_int_flag {
	63	RCB_INT_FLAG_TX = 0x1,
	64	RCB_INT_FLAG_RX = (0x1 << 1),
	65	RCB_INT_FLAG_MAX = (0x1 << 2), /must be the last element /
	66	};
	67
	68	struct hns_ring_hw_stats {
	69	u64 tx_pkts;
	70	u64 ppe_tx_ok_pkts;
	71	u64 ppe_tx_drop_pkts;
	72	u64 rx_pkts;
	73	u64 ppe_rx_ok_pkts;
	74	u64 ppe_rx_drop_pkts;
	75	};
	76
	77	struct ring_pair_cb {
	78	struct rcb_common_cb rcb_common; / ring belongs to */
	79	struct device dev; /device for DMA mapping */
	80	struct hnae_queue q;
	81
	82	u16 index; /* global index in a rcb common device */
	83	u16 buf_size;
	84
	85	int virq[HNS_RCB_IRQ_NUM_PER_QUEUE];
	86
43adc067	87	u8 port_id_in_comm;
511e6bc0	88	u8 used_by_vf;
	89
	90	struct hns_ring_hw_stats hw_stats;
	91	};
	92
	93	struct rcb_common_cb {
	94	u8 __iomem *io_base;
	95	phys_addr_t phy_base;
	96	struct dsaf_device *dsaf_dev;
	97	u16 max_vfn;
	98	u16 max_q_per_vf;
	99
	100	u8 comm_index;
	101	u32 ring_num;
511e6bc0	102	u32 desc_num; /* desc num per queue*/
	103
	104	struct ring_pair_cb ring_pair_cb[0];
	105	};
	106
	107	int hns_rcb_buf_size2type(u32 buf_size);
	108
	109	int hns_rcb_common_get_cfg(struct dsaf_device *dsaf_dev, int comm_index);
	110	void hns_rcb_common_free_cfg(struct dsaf_device *dsaf_dev, u32 comm_index);
	111	int hns_rcb_common_init_hw(struct rcb_common_cb *rcb_common);
	112	void hns_rcb_start(struct hnae_queue *q, u32 val);
	113	void hns_rcb_get_cfg(struct rcb_common_cb *rcb_common);
4568637f	114	void hns_rcb_get_queue_mode(enum dsaf_mode dsaf_mode, int comm_index,
4568637f	115	u16 max_vfn, u16 max_q_per_vf);
511e6bc0	116
13ac695e S	117	void hns_rcb_common_init_commit_hw(struct rcb_common_cb *rcb_common);
13ac695e S	118
511e6bc0	119	void hns_rcb_ring_enable_hw(struct hnae_queue *q, u32 val);
	120	void hns_rcb_int_clr_hw(struct hnae_queue *q, u32 flag);
	121	void hns_rcb_int_ctrl_hw(struct hnae_queue *q, u32 flag, u32 enable);
13ac695e S	122	void hns_rcbv2_int_ctrl_hw(struct hnae_queue *q, u32 flag, u32 mask);
	123	void hns_rcbv2_int_clr_hw(struct hnae_queue *q, u32 flag);
	124
511e6bc0	125	void hns_rcb_init_hw(struct ring_pair_cb *ring);
	126	void hns_rcb_reset_ring_hw(struct hnae_queue *q);
	127	void hns_rcb_wait_fbd_clean(struct hnae_queue **qs, int q_num, u32 flag);
43adc067 L	128	u32 hns_rcb_get_coalesced_frames(
	129	struct rcb_common_cb *rcb_common, u32 port_idx);
	130	u32 hns_rcb_get_coalesce_usecs(
	131	struct rcb_common_cb *rcb_common, u32 port_idx);
	132	int hns_rcb_set_coalesce_usecs(
	133	struct rcb_common_cb *rcb_common, u32 port_idx, u32 timeout);
	134	int hns_rcb_set_coalesced_frames(
	135	struct rcb_common_cb *rcb_common, u32 port_idx, u32 coalesced_frames);
511e6bc0	136	void hns_rcb_update_stats(struct hnae_queue *queue);
	137
	138	void hns_rcb_get_stats(struct hnae_queue queue, u64 data);
	139
	140	void hns_rcb_get_common_regs(struct rcb_common_cb rcb_common, void data);
	141
	142	int hns_rcb_get_ring_sset_count(int stringset);
	143	int hns_rcb_get_common_regs_count(void);
	144	int hns_rcb_get_ring_regs_count(void);
	145
	146	void hns_rcb_get_ring_regs(struct hnae_queue queue, void data);
	147
	148	void hns_rcb_get_strings(int stringset, u8 *data, int index);
	149	#endif /* _HNS_DSAF_RCB_H */