drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Copyright (c) 2014-2015 Hisilicon Limited.
   4  */
   5
   6 #ifndef _HNS_DSAF_RCB_H
   7 #define _HNS_DSAF_RCB_H
   8
   9 #include <linux/netdevice.h>
  10 #include <linux/platform_device.h>
  11
  12 #include "hnae.h"
  13 #include "hns_dsaf_main.h"
  14
  15 struct rcb_common_cb;
  16
  17 #define HNS_RCB_IRQ_NUM_PER_QUEUE               2
  18 #define HNS_RCB_IRQ_IDX_TX                      0
  19 #define HNS_RCB_IRQ_IDX_RX                      1
  20 #define HNS_RCB_TX_REG_OFFSET                   0x40
  21
  22 #define HNS_RCB_SERVICE_NW_ENGINE_NUM           DSAF_COMM_CHN
  23 #define HNS_RCB_DEBUG_NW_ENGINE_NUM             1
  24 #define HNS_RCB_RING_MAX_BD_PER_PKT             3
  25 #define HNS_RCB_RING_MAX_TXBD_PER_PKT           3
  26 #define HNS_RCBV2_RING_MAX_TXBD_PER_PKT         8
  27 #define HNS_RCB_MAX_PKT_SIZE MAC_MAX_MTU
  28
  29 #define HNS_RCB_RING_MAX_PENDING_BD             1024
  30 #define HNS_RCB_RING_MIN_PENDING_BD             16
  31
  32 #define HNS_RCB_REG_OFFSET                      0x10000
  33
  34 #define HNS_RCB_TX_FRAMES_LOW           1
  35 #define HNS_RCB_RX_FRAMES_LOW           1
  36 #define HNS_RCB_TX_FRAMES_HIGH          1023
  37 #define HNS_RCB_RX_FRAMES_HIGH          1023
  38 #define HNS_RCB_TX_USECS_LOW            1
  39 #define HNS_RCB_RX_USECS_LOW            1
  40 #define HNS_RCB_TX_USECS_HIGH           1023
  41 #define HNS_RCB_RX_USECS_HIGH           1023
  42 #define HNS_RCB_MAX_COALESCED_FRAMES            1023
  43 #define HNS_RCB_MIN_COALESCED_FRAMES            1
  44 #define HNS_RCB_DEF_RX_COALESCED_FRAMES         50
  45 #define HNS_RCB_DEF_TX_COALESCED_FRAMES         1
  46 #define HNS_RCB_CLK_FREQ_MHZ                    350
  47 #define HNS_RCB_MAX_COALESCED_USECS             0x3ff
  48 #define HNS_RCB_DEF_COALESCED_USECS             30
  49 #define HNS_RCB_DEF_GAP_TIME_USECS              20
  50 #define HNS_RCB_TX_PKTLINE_OFFSET               8
  51
  52 #define HNS_RCB_COMMON_ENDIAN                   1
  53
  54 #define HNS_BD_SIZE_512_TYPE                    0
  55 #define HNS_BD_SIZE_1024_TYPE                   1
  56 #define HNS_BD_SIZE_2048_TYPE                   2
  57 #define HNS_BD_SIZE_4096_TYPE                   3
  58
  59 #define HNS_RCB_COMMON_DUMP_REG_NUM 80
  60 #define HNS_RCB_RING_DUMP_REG_NUM 40
  61 #define HNS_RING_STATIC_REG_NUM 28
  62
  63 #define HNS_DUMP_REG_NUM                        500
  64 #define HNS_STATIC_REG_NUM                      12
  65
  66 #define HNS_TSO_MODE_8BD_32K                    1
  67 #define HNS_TSO_MDOE_4BD_16K                    0
  68
  69 enum rcb_int_flag {
  70         RCB_INT_FLAG_TX = 0x1,
  71         RCB_INT_FLAG_RX = (0x1 << 1),
  72         RCB_INT_FLAG_MAX = (0x1 << 2),  /*must be the last element */
  73 };
  74
  75 struct hns_ring_hw_stats {
  76         u64 tx_pkts;
  77         u64 ppe_tx_ok_pkts;
  78         u64 ppe_tx_drop_pkts;
  79         u64 rx_pkts;
  80         u64 ppe_rx_ok_pkts;
  81         u64 ppe_rx_drop_pkts;
  82 };
  83
  84 struct ring_pair_cb {
  85         struct rcb_common_cb *rcb_common;       /*  ring belongs to */
  86         struct device *dev;     /*device for DMA mapping */
  87         struct hnae_queue q;
  88
  89         u16 index;      /* global index in a rcb common device */
  90         u16 buf_size;
  91
  92         int virq[HNS_RCB_IRQ_NUM_PER_QUEUE];
  93
  94         u8 port_id_in_comm;
  95         u8 used_by_vf;
  96
  97         struct hns_ring_hw_stats hw_stats;
  98 };
  99
 100 struct rcb_common_cb {
 101         u8 __iomem *io_base;
 102         phys_addr_t phy_base;
 103         struct dsaf_device *dsaf_dev;
 104         u16 max_vfn;
 105         u16 max_q_per_vf;
 106
 107         u8 comm_index;
 108         u32 ring_num;
 109         u32 desc_num; /*  desc num per queue*/
 110
 111         struct ring_pair_cb ring_pair_cb[0];
 112 };
 113
 114 int hns_rcb_buf_size2type(u32 buf_size);
 115
 116 int hns_rcb_common_get_cfg(struct dsaf_device *dsaf_dev, int comm_index);
 117 void hns_rcb_common_free_cfg(struct dsaf_device *dsaf_dev, u32 comm_index);
 118 int hns_rcb_common_init_hw(struct rcb_common_cb *rcb_common);
 119 void hns_rcb_start(struct hnae_queue *q, u32 val);
 120 int hns_rcb_get_cfg(struct rcb_common_cb *rcb_common);
 121 void hns_rcb_get_queue_mode(enum dsaf_mode dsaf_mode,
 122                             u16 *max_vfn, u16 *max_q_per_vf);
 123
 124 void hns_rcb_common_init_commit_hw(struct rcb_common_cb *rcb_common);
 125
 126 void hns_rcb_ring_enable_hw(struct hnae_queue *q, u32 val);
 127 void hns_rcb_int_clr_hw(struct hnae_queue *q, u32 flag);
 128 void hns_rcb_int_ctrl_hw(struct hnae_queue *q, u32 flag, u32 enable);
 129 void hns_rcbv2_int_ctrl_hw(struct hnae_queue *q, u32 flag, u32 mask);
 130 void hns_rcbv2_int_clr_hw(struct hnae_queue *q, u32 flag);
 131
 132 void hns_rcb_init_hw(struct ring_pair_cb *ring);
 133 void hns_rcb_reset_ring_hw(struct hnae_queue *q);
 134 void hns_rcb_wait_fbd_clean(struct hnae_queue **qs, int q_num, u32 flag);
 135 int hns_rcb_wait_tx_ring_clean(struct hnae_queue *qs);
 136 u32 hns_rcb_get_rx_coalesced_frames(
 137         struct rcb_common_cb *rcb_common, u32 port_idx);
 138 u32 hns_rcb_get_tx_coalesced_frames(
 139         struct rcb_common_cb *rcb_common, u32 port_idx);
 140 u32 hns_rcb_get_coalesce_usecs(
 141         struct rcb_common_cb *rcb_common, u32 port_idx);
 142 int hns_rcb_set_coalesce_usecs(
 143         struct rcb_common_cb *rcb_common, u32 port_idx, u32 timeout);
 144 int hns_rcb_set_rx_coalesced_frames(
 145         struct rcb_common_cb *rcb_common, u32 port_idx, u32 coalesced_frames);
 146 int hns_rcb_set_tx_coalesced_frames(
 147         struct rcb_common_cb *rcb_common, u32 port_idx, u32 coalesced_frames);
 148 void hns_rcb_update_stats(struct hnae_queue *queue);
 149
 150 void hns_rcb_get_stats(struct hnae_queue *queue, u64 *data);
 151
 152 void hns_rcb_get_common_regs(struct rcb_common_cb *rcb_common, void *data);
 153
 154 int hns_rcb_get_ring_sset_count(int stringset);
 155 int hns_rcb_get_common_regs_count(void);
 156 int hns_rcb_get_ring_regs_count(void);
 157
 158 void hns_rcb_get_ring_regs(struct hnae_queue *queue, void *data);
 159
 160 void hns_rcb_get_strings(int stringset, u8 *data, int index);
 161 void hns_rcb_set_rx_ring_bs(struct hnae_queue *q, u32 buf_size);
 162 void hns_rcb_set_tx_ring_bs(struct hnae_queue *q, u32 buf_size);
 163
 164 #endif /* _HNS_DSAF_RCB_H */