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 29 #define HNS_RCB_RING_MAX_TXBD_PER_PKT 3 30 #define HNS_RCBV2_RING_MAX_TXBD_PER_PKT 8 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_TX_FRAMES_LOW 1 39 #define HNS_RCB_RX_FRAMES_LOW 1 40 #define HNS_RCB_TX_FRAMES_HIGH 1023 41 #define HNS_RCB_RX_FRAMES_HIGH 1023 42 #define HNS_RCB_TX_USECS_LOW 1 43 #define HNS_RCB_RX_USECS_LOW 1 44 #define HNS_RCB_TX_USECS_HIGH 1023 45 #define HNS_RCB_RX_USECS_HIGH 1023 46 #define HNS_RCB_MAX_COALESCED_FRAMES 1023 47 #define HNS_RCB_MIN_COALESCED_FRAMES 1 48 #define HNS_RCB_DEF_RX_COALESCED_FRAMES 50 49 #define HNS_RCB_DEF_TX_COALESCED_FRAMES 1 50 #define HNS_RCB_CLK_FREQ_MHZ 350 51 #define HNS_RCB_MAX_COALESCED_USECS 0x3ff 52 #define HNS_RCB_DEF_COALESCED_USECS 30 53 #define HNS_RCB_DEF_GAP_TIME_USECS 20 54 #define HNS_RCB_TX_PKTLINE_OFFSET 8 55 56 #define HNS_RCB_COMMON_ENDIAN 1 57 58 #define HNS_BD_SIZE_512_TYPE 0 59 #define HNS_BD_SIZE_1024_TYPE 1 60 #define HNS_BD_SIZE_2048_TYPE 2 61 #define HNS_BD_SIZE_4096_TYPE 3 62 63 #define HNS_RCB_COMMON_DUMP_REG_NUM 80 64 #define HNS_RCB_RING_DUMP_REG_NUM 40 65 #define HNS_RING_STATIC_REG_NUM 28 66 67 #define HNS_DUMP_REG_NUM 500 68 #define HNS_STATIC_REG_NUM 12 69 70 #define HNS_TSO_MODE_8BD_32K 1 71 #define HNS_TSO_MDOE_4BD_16K 0 72 73 enum rcb_int_flag { 74 RCB_INT_FLAG_TX = 0x1, 75 RCB_INT_FLAG_RX = (0x1 << 1), 76 RCB_INT_FLAG_MAX = (0x1 << 2), /*must be the last element */ 77 }; 78 79 struct hns_ring_hw_stats { 80 u64 tx_pkts; 81 u64 ppe_tx_ok_pkts; 82 u64 ppe_tx_drop_pkts; 83 u64 rx_pkts; 84 u64 ppe_rx_ok_pkts; 85 u64 ppe_rx_drop_pkts; 86 }; 87 88 struct ring_pair_cb { 89 struct rcb_common_cb *rcb_common; /* ring belongs to */ 90 struct device *dev; /*device for DMA mapping */ 91 struct hnae_queue q; 92 93 u16 index; /* global index in a rcb common device */ 94 u16 buf_size; 95 96 int virq[HNS_RCB_IRQ_NUM_PER_QUEUE]; 97 98 u8 port_id_in_comm; 99 u8 used_by_vf; 100 101 struct hns_ring_hw_stats hw_stats; 102 }; 103 104 struct rcb_common_cb { 105 u8 __iomem *io_base; 106 phys_addr_t phy_base; 107 struct dsaf_device *dsaf_dev; 108 u16 max_vfn; 109 u16 max_q_per_vf; 110 111 u8 comm_index; 112 u32 ring_num; 113 u32 desc_num; /* desc num per queue*/ 114 115 struct ring_pair_cb ring_pair_cb[0]; 116 }; 117 118 int hns_rcb_buf_size2type(u32 buf_size); 119 120 int hns_rcb_common_get_cfg(struct dsaf_device *dsaf_dev, int comm_index); 121 void hns_rcb_common_free_cfg(struct dsaf_device *dsaf_dev, u32 comm_index); 122 int hns_rcb_common_init_hw(struct rcb_common_cb *rcb_common); 123 void hns_rcb_start(struct hnae_queue *q, u32 val); 124 int hns_rcb_get_cfg(struct rcb_common_cb *rcb_common); 125 void hns_rcb_get_queue_mode(enum dsaf_mode dsaf_mode, 126 u16 *max_vfn, u16 *max_q_per_vf); 127 128 void hns_rcb_common_init_commit_hw(struct rcb_common_cb *rcb_common); 129 130 void hns_rcb_ring_enable_hw(struct hnae_queue *q, u32 val); 131 void hns_rcb_int_clr_hw(struct hnae_queue *q, u32 flag); 132 void hns_rcb_int_ctrl_hw(struct hnae_queue *q, u32 flag, u32 enable); 133 void hns_rcbv2_int_ctrl_hw(struct hnae_queue *q, u32 flag, u32 mask); 134 void hns_rcbv2_int_clr_hw(struct hnae_queue *q, u32 flag); 135 136 void hns_rcb_init_hw(struct ring_pair_cb *ring); 137 void hns_rcb_reset_ring_hw(struct hnae_queue *q); 138 void hns_rcb_wait_fbd_clean(struct hnae_queue **qs, int q_num, u32 flag); 139 int hns_rcb_wait_tx_ring_clean(struct hnae_queue *qs); 140 u32 hns_rcb_get_rx_coalesced_frames( 141 struct rcb_common_cb *rcb_common, u32 port_idx); 142 u32 hns_rcb_get_tx_coalesced_frames( 143 struct rcb_common_cb *rcb_common, u32 port_idx); 144 u32 hns_rcb_get_coalesce_usecs( 145 struct rcb_common_cb *rcb_common, u32 port_idx); 146 int hns_rcb_set_coalesce_usecs( 147 struct rcb_common_cb *rcb_common, u32 port_idx, u32 timeout); 148 int hns_rcb_set_rx_coalesced_frames( 149 struct rcb_common_cb *rcb_common, u32 port_idx, u32 coalesced_frames); 150 int hns_rcb_set_tx_coalesced_frames( 151 struct rcb_common_cb *rcb_common, u32 port_idx, u32 coalesced_frames); 152 void hns_rcb_update_stats(struct hnae_queue *queue); 153 154 void hns_rcb_get_stats(struct hnae_queue *queue, u64 *data); 155 156 void hns_rcb_get_common_regs(struct rcb_common_cb *rcb_common, void *data); 157 158 int hns_rcb_get_ring_sset_count(int stringset); 159 int hns_rcb_get_common_regs_count(void); 160 int hns_rcb_get_ring_regs_count(void); 161 162 void hns_rcb_get_ring_regs(struct hnae_queue *queue, void *data); 163 164 void hns_rcb_get_strings(int stringset, u8 *data, int index); 165 void hns_rcb_set_rx_ring_bs(struct hnae_queue *q, u32 buf_size); 166 void hns_rcb_set_tx_ring_bs(struct hnae_queue *q, u32 buf_size); 167 168 #endif /* _HNS_DSAF_RCB_H */ 169