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 #define HNS_TSO_MODE_8BD_32K 1 58 #define HNS_TSO_MDOE_4BD_16K 0 59 60 enum rcb_int_flag { 61 RCB_INT_FLAG_TX = 0x1, 62 RCB_INT_FLAG_RX = (0x1 << 1), 63 RCB_INT_FLAG_MAX = (0x1 << 2), /*must be the last element */ 64 }; 65 66 struct hns_ring_hw_stats { 67 u64 tx_pkts; 68 u64 ppe_tx_ok_pkts; 69 u64 ppe_tx_drop_pkts; 70 u64 rx_pkts; 71 u64 ppe_rx_ok_pkts; 72 u64 ppe_rx_drop_pkts; 73 }; 74 75 struct ring_pair_cb { 76 struct rcb_common_cb *rcb_common; /* ring belongs to */ 77 struct device *dev; /*device for DMA mapping */ 78 struct hnae_queue q; 79 80 u16 index; /* global index in a rcb common device */ 81 u16 buf_size; 82 83 int virq[HNS_RCB_IRQ_NUM_PER_QUEUE]; 84 85 u8 port_id_in_dsa; 86 u8 used_by_vf; 87 88 struct hns_ring_hw_stats hw_stats; 89 }; 90 91 struct rcb_common_cb { 92 u8 __iomem *io_base; 93 phys_addr_t phy_base; 94 struct dsaf_device *dsaf_dev; 95 u16 max_vfn; 96 u16 max_q_per_vf; 97 98 u8 comm_index; 99 u32 ring_num; 100 u32 coalesced_frames; /* frames threshold of rx interrupt */ 101 u32 timeout; /* time threshold of rx interrupt */ 102 u32 desc_num; /* desc num per queue*/ 103 104 struct ring_pair_cb ring_pair_cb[0]; 105 }; 106 107 int hns_rcb_buf_size2type(u32 buf_size); 108 109 int hns_rcb_common_get_cfg(struct dsaf_device *dsaf_dev, int comm_index); 110 void hns_rcb_common_free_cfg(struct dsaf_device *dsaf_dev, u32 comm_index); 111 int hns_rcb_common_init_hw(struct rcb_common_cb *rcb_common); 112 void hns_rcb_start(struct hnae_queue *q, u32 val); 113 void hns_rcb_get_cfg(struct rcb_common_cb *rcb_common); 114 void hns_rcb_get_queue_mode(enum dsaf_mode dsaf_mode, int comm_index, 115 u16 *max_vfn, u16 *max_q_per_vf); 116 117 void hns_rcb_common_init_commit_hw(struct rcb_common_cb *rcb_common); 118 119 void hns_rcb_ring_enable_hw(struct hnae_queue *q, u32 val); 120 void hns_rcb_int_clr_hw(struct hnae_queue *q, u32 flag); 121 void hns_rcb_int_ctrl_hw(struct hnae_queue *q, u32 flag, u32 enable); 122 void hns_rcbv2_int_ctrl_hw(struct hnae_queue *q, u32 flag, u32 mask); 123 void hns_rcbv2_int_clr_hw(struct hnae_queue *q, u32 flag); 124 125 void hns_rcb_init_hw(struct ring_pair_cb *ring); 126 void hns_rcb_reset_ring_hw(struct hnae_queue *q); 127 void hns_rcb_wait_fbd_clean(struct hnae_queue **qs, int q_num, u32 flag); 128 129 u32 hns_rcb_get_coalesced_frames(struct dsaf_device *dsaf_dev, int comm_index); 130 u32 hns_rcb_get_coalesce_usecs(struct dsaf_device *dsaf_dev, int comm_index); 131 void hns_rcb_set_coalesce_usecs(struct dsaf_device *dsaf_dev, 132 int comm_index, u32 timeout); 133 int hns_rcb_set_coalesced_frames(struct dsaf_device *dsaf_dev, 134 int comm_index, u32 coalesce_frames); 135 void hns_rcb_update_stats(struct hnae_queue *queue); 136 137 void hns_rcb_get_stats(struct hnae_queue *queue, u64 *data); 138 139 void hns_rcb_get_common_regs(struct rcb_common_cb *rcb_common, void *data); 140 141 int hns_rcb_get_ring_sset_count(int stringset); 142 int hns_rcb_get_common_regs_count(void); 143 int hns_rcb_get_ring_regs_count(void); 144 145 void hns_rcb_get_ring_regs(struct hnae_queue *queue, void *data); 146 147 void hns_rcb_get_strings(int stringset, u8 *data, int index); 148 #endif /* _HNS_DSAF_RCB_H */ 149