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_MAX_COALESCED_FRAMES 1023 39 #define HNS_RCB_MIN_COALESCED_FRAMES 1 40 #define HNS_RCB_DEF_COALESCED_FRAMES 50 41 #define HNS_RCB_MAX_TIME_OUT 0x500 42 43 #define HNS_RCB_COMMON_ENDIAN 1 44 45 #define HNS_BD_SIZE_512_TYPE 0 46 #define HNS_BD_SIZE_1024_TYPE 1 47 #define HNS_BD_SIZE_2048_TYPE 2 48 #define HNS_BD_SIZE_4096_TYPE 3 49 50 #define HNS_RCB_COMMON_DUMP_REG_NUM 80 51 #define HNS_RCB_RING_DUMP_REG_NUM 40 52 #define HNS_RING_STATIC_REG_NUM 28 53 54 #define HNS_DUMP_REG_NUM 500 55 #define HNS_STATIC_REG_NUM 12 56 57 enum rcb_int_flag { 58 RCB_INT_FLAG_TX = 0x1, 59 RCB_INT_FLAG_RX = (0x1 << 1), 60 RCB_INT_FLAG_MAX = (0x1 << 2), /*must be the last element */ 61 }; 62 63 struct hns_ring_hw_stats { 64 u64 tx_pkts; 65 u64 ppe_tx_ok_pkts; 66 u64 ppe_tx_drop_pkts; 67 u64 rx_pkts; 68 u64 ppe_rx_ok_pkts; 69 u64 ppe_rx_drop_pkts; 70 }; 71 72 struct ring_pair_cb { 73 struct rcb_common_cb *rcb_common; /* ring belongs to */ 74 struct device *dev; /*device for DMA mapping */ 75 struct hnae_queue q; 76 77 u16 index; /* global index in a rcb common device */ 78 u16 buf_size; 79 80 int virq[HNS_RCB_IRQ_NUM_PER_QUEUE]; 81 82 u8 port_id_in_dsa; 83 u8 used_by_vf; 84 85 struct hns_ring_hw_stats hw_stats; 86 }; 87 88 struct rcb_common_cb { 89 u8 __iomem *io_base; 90 phys_addr_t phy_base; 91 struct dsaf_device *dsaf_dev; 92 u16 max_vfn; 93 u16 max_q_per_vf; 94 95 u8 comm_index; 96 u32 ring_num; 97 u32 coalesced_frames; /* frames threshold of rx interrupt */ 98 u32 timeout; /* time threshold of rx interrupt */ 99 u32 desc_num; /* desc num per queue*/ 100 101 struct ring_pair_cb ring_pair_cb[0]; 102 }; 103 104 int hns_rcb_buf_size2type(u32 buf_size); 105 106 int hns_rcb_common_get_cfg(struct dsaf_device *dsaf_dev, int comm_index); 107 void hns_rcb_common_free_cfg(struct dsaf_device *dsaf_dev, u32 comm_index); 108 int hns_rcb_common_init_hw(struct rcb_common_cb *rcb_common); 109 void hns_rcb_start(struct hnae_queue *q, u32 val); 110 void hns_rcb_get_cfg(struct rcb_common_cb *rcb_common); 111 void hns_rcb_get_queue_mode(enum dsaf_mode dsaf_mode, int comm_index, 112 u16 *max_vfn, u16 *max_q_per_vf); 113 114 void hns_rcb_common_init_commit_hw(struct rcb_common_cb *rcb_common); 115 116 void hns_rcb_ring_enable_hw(struct hnae_queue *q, u32 val); 117 void hns_rcb_int_clr_hw(struct hnae_queue *q, u32 flag); 118 void hns_rcb_int_ctrl_hw(struct hnae_queue *q, u32 flag, u32 enable); 119 void hns_rcbv2_int_ctrl_hw(struct hnae_queue *q, u32 flag, u32 mask); 120 void hns_rcbv2_int_clr_hw(struct hnae_queue *q, u32 flag); 121 122 void hns_rcb_init_hw(struct ring_pair_cb *ring); 123 void hns_rcb_reset_ring_hw(struct hnae_queue *q); 124 void hns_rcb_wait_fbd_clean(struct hnae_queue **qs, int q_num, u32 flag); 125 126 u32 hns_rcb_get_coalesced_frames(struct dsaf_device *dsaf_dev, int comm_index); 127 u32 hns_rcb_get_coalesce_usecs(struct dsaf_device *dsaf_dev, int comm_index); 128 void hns_rcb_set_coalesce_usecs(struct dsaf_device *dsaf_dev, 129 int comm_index, u32 timeout); 130 int hns_rcb_set_coalesced_frames(struct dsaf_device *dsaf_dev, 131 int comm_index, u32 coalesce_frames); 132 void hns_rcb_update_stats(struct hnae_queue *queue); 133 134 void hns_rcb_get_stats(struct hnae_queue *queue, u64 *data); 135 136 void hns_rcb_get_common_regs(struct rcb_common_cb *rcb_common, void *data); 137 138 int hns_rcb_get_ring_sset_count(int stringset); 139 int hns_rcb_get_common_regs_count(void); 140 int hns_rcb_get_ring_regs_count(void); 141 142 void hns_rcb_get_ring_regs(struct hnae_queue *queue, void *data); 143 144 void hns_rcb_get_strings(int stringset, u8 *data, int index); 145 #endif /* _HNS_DSAF_RCB_H */ 146