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/*
* 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_MAX_TIME_OUT 0x500
#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
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_dsa;
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 coalesced_frames; /* frames threshold of rx interrupt */
u32 timeout; /* time threshold of rx interrupt */
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 dsaf_device *dsaf_dev, int comm_index);
u32 hns_rcb_get_coalesce_usecs(struct dsaf_device *dsaf_dev, int comm_index);
void hns_rcb_set_coalesce_usecs(struct dsaf_device *dsaf_dev,
int comm_index, u32 timeout);
int hns_rcb_set_coalesced_frames(struct dsaf_device *dsaf_dev,
int comm_index, u32 coalesce_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 */
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