2 * Copyright (c) 2014-2015 Hisilicon Limited.
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.
10 #ifndef _HNS_DSAF_RCB_H
11 #define _HNS_DSAF_RCB_H
13 #include <linux/netdevice.h>
14 #include <linux/platform_device.h>
17 #include "hns_dsaf_main.h"
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
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
29 #define HNS_RCB_MAX_PKT_SIZE MAC_MAX_MTU
31 #define HNS_RCB_RING_MAX_PENDING_BD 1024
32 #define HNS_RCB_RING_MIN_PENDING_BD 16
34 #define HNS_RCB_REG_OFFSET 0x10000
36 #define HNS_RCB_MAX_COALESCED_FRAMES 1023
37 #define HNS_RCB_MIN_COALESCED_FRAMES 1
38 #define HNS_RCB_DEF_COALESCED_FRAMES 50
39 #define HNS_RCB_MAX_TIME_OUT 0x500
41 #define HNS_RCB_COMMON_ENDIAN 1
43 #define HNS_BD_SIZE_512_TYPE 0
44 #define HNS_BD_SIZE_1024_TYPE 1
45 #define HNS_BD_SIZE_2048_TYPE 2
46 #define HNS_BD_SIZE_4096_TYPE 3
48 #define HNS_RCB_COMMON_DUMP_REG_NUM 80
49 #define HNS_RCB_RING_DUMP_REG_NUM 40
50 #define HNS_RING_STATIC_REG_NUM 28
52 #define HNS_DUMP_REG_NUM 500
53 #define HNS_STATIC_REG_NUM 12
56 RCB_INT_FLAG_TX = 0x1,
57 RCB_INT_FLAG_RX = (0x1 << 1),
58 RCB_INT_FLAG_MAX = (0x1 << 2), /*must be the last element */
61 struct hns_ring_hw_stats {
71 struct rcb_common_cb *rcb_common; /* ring belongs to */
72 struct device *dev; /*device for DMA mapping */
75 u16 index; /* global index in a rcb common device */
78 int virq[HNS_RCB_IRQ_NUM_PER_QUEUE];
83 struct hns_ring_hw_stats hw_stats;
86 struct rcb_common_cb {
89 struct dsaf_device *dsaf_dev;
95 u32 coalesced_frames; /* frames threshold of rx interrupt */
96 u32 timeout; /* time threshold of rx interrupt */
97 u32 desc_num; /* desc num per queue*/
99 struct ring_pair_cb ring_pair_cb[0];
102 int hns_rcb_buf_size2type(u32 buf_size);
104 int hns_rcb_common_get_cfg(struct dsaf_device *dsaf_dev, int comm_index);
105 void hns_rcb_common_free_cfg(struct dsaf_device *dsaf_dev, u32 comm_index);
106 int hns_rcb_common_init_hw(struct rcb_common_cb *rcb_common);
107 void hns_rcb_start(struct hnae_queue *q, u32 val);
108 void hns_rcb_get_cfg(struct rcb_common_cb *rcb_common);
109 void hns_rcb_common_init_commit_hw(struct rcb_common_cb *rcb_common);
110 void hns_rcb_get_queue_mode(enum dsaf_mode dsaf_mode, int comm_index,
111 u16 *max_vfn, u16 *max_q_per_vf);
113 void hns_rcb_ring_enable_hw(struct hnae_queue *q, u32 val);
114 void hns_rcb_int_clr_hw(struct hnae_queue *q, u32 flag);
115 void hns_rcb_int_ctrl_hw(struct hnae_queue *q, u32 flag, u32 enable);
116 void hns_rcb_init_hw(struct ring_pair_cb *ring);
117 void hns_rcb_reset_ring_hw(struct hnae_queue *q);
118 void hns_rcb_wait_fbd_clean(struct hnae_queue **qs, int q_num, u32 flag);
120 u32 hns_rcb_get_coalesced_frames(struct dsaf_device *dsaf_dev, int comm_index);
121 u32 hns_rcb_get_coalesce_usecs(struct dsaf_device *dsaf_dev, int comm_index);
122 void hns_rcb_set_coalesce_usecs(struct dsaf_device *dsaf_dev,
123 int comm_index, u32 timeout);
124 int hns_rcb_set_coalesced_frames(struct dsaf_device *dsaf_dev,
125 int comm_index, u32 coalesce_frames);
126 void hns_rcb_update_stats(struct hnae_queue *queue);
128 void hns_rcb_get_stats(struct hnae_queue *queue, u64 *data);
130 void hns_rcb_get_common_regs(struct rcb_common_cb *rcb_common, void *data);
132 int hns_rcb_get_ring_sset_count(int stringset);
133 int hns_rcb_get_common_regs_count(void);
134 int hns_rcb_get_ring_regs_count(void);
136 void hns_rcb_get_ring_regs(struct hnae_queue *queue, void *data);
138 void hns_rcb_get_strings(int stringset, u8 *data, int index);
139 #endif /* _HNS_DSAF_RCB_H */