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[] __counted_by(ring_num); 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 int hns_rcb_get_cfg(struct rcb_common_cb *rcb_common); 120 void hns_rcb_get_queue_mode(enum dsaf_mode dsaf_mode, 121 u16 *max_vfn, u16 *max_q_per_vf); 122 123 void hns_rcb_common_init_commit_hw(struct rcb_common_cb *rcb_common); 124 125 void hns_rcb_ring_enable_hw(struct hnae_queue *q, u32 val); 126 void hns_rcb_int_clr_hw(struct hnae_queue *q, u32 flag); 127 void hns_rcb_int_ctrl_hw(struct hnae_queue *q, u32 flag, u32 enable); 128 void hns_rcbv2_int_ctrl_hw(struct hnae_queue *q, u32 flag, u32 mask); 129 void hns_rcbv2_int_clr_hw(struct hnae_queue *q, u32 flag); 130 131 void hns_rcb_init_hw(struct ring_pair_cb *ring); 132 void hns_rcb_reset_ring_hw(struct hnae_queue *q); 133 void hns_rcb_wait_fbd_clean(struct hnae_queue **qs, int q_num, u32 flag); 134 int hns_rcb_wait_tx_ring_clean(struct hnae_queue *qs); 135 u32 hns_rcb_get_rx_coalesced_frames( 136 struct rcb_common_cb *rcb_common, u32 port_idx); 137 u32 hns_rcb_get_tx_coalesced_frames( 138 struct rcb_common_cb *rcb_common, u32 port_idx); 139 u32 hns_rcb_get_coalesce_usecs( 140 struct rcb_common_cb *rcb_common, u32 port_idx); 141 int hns_rcb_set_coalesce_usecs( 142 struct rcb_common_cb *rcb_common, u32 port_idx, u32 timeout); 143 int hns_rcb_set_rx_coalesced_frames( 144 struct rcb_common_cb *rcb_common, u32 port_idx, u32 coalesced_frames); 145 int hns_rcb_set_tx_coalesced_frames( 146 struct rcb_common_cb *rcb_common, u32 port_idx, u32 coalesced_frames); 147 void hns_rcb_update_stats(struct hnae_queue *queue); 148 149 void hns_rcb_get_stats(struct hnae_queue *queue, u64 *data); 150 151 void hns_rcb_get_common_regs(struct rcb_common_cb *rcb_common, void *data); 152 153 int hns_rcb_get_ring_sset_count(int stringset); 154 int hns_rcb_get_common_regs_count(void); 155 int hns_rcb_get_ring_regs_count(void); 156 157 void hns_rcb_get_ring_regs(struct hnae_queue *queue, void *data); 158 159 void hns_rcb_get_strings(int stringset, u8 **data, int index); 160 void hns_rcb_set_rx_ring_bs(struct hnae_queue *q, u32 buf_size); 161 void hns_rcb_set_tx_ring_bs(struct hnae_queue *q, u32 buf_size); 162 163 #endif /* _HNS_DSAF_RCB_H */ 164