| // SPDX-License-Identifier: GPL-2.0+ |
| // Copyright (c) 2016-2017 Hisilicon Limited. |
| |
| #ifndef __HNS3_ENET_H |
| #define __HNS3_ENET_H |
| |
| #include <linux/if_vlan.h> |
| |
| #include "hnae3.h" |
| |
| #define HNS3_MOD_VERSION "1.0" |
| |
| extern const char hns3_driver_version[]; |
| |
| enum hns3_nic_state { |
| HNS3_NIC_STATE_TESTING, |
| HNS3_NIC_STATE_RESETTING, |
| HNS3_NIC_STATE_REINITING, |
| HNS3_NIC_STATE_DOWN, |
| HNS3_NIC_STATE_DISABLED, |
| HNS3_NIC_STATE_REMOVING, |
| HNS3_NIC_STATE_SERVICE_INITED, |
| HNS3_NIC_STATE_SERVICE_SCHED, |
| HNS3_NIC_STATE2_RESET_REQUESTED, |
| HNS3_NIC_STATE_MAX |
| }; |
| |
| #define HNS3_RING_RX_RING_BASEADDR_L_REG 0x00000 |
| #define HNS3_RING_RX_RING_BASEADDR_H_REG 0x00004 |
| #define HNS3_RING_RX_RING_BD_NUM_REG 0x00008 |
| #define HNS3_RING_RX_RING_BD_LEN_REG 0x0000C |
| #define HNS3_RING_RX_RING_TAIL_REG 0x00018 |
| #define HNS3_RING_RX_RING_HEAD_REG 0x0001C |
| #define HNS3_RING_RX_RING_FBDNUM_REG 0x00020 |
| #define HNS3_RING_RX_RING_PKTNUM_RECORD_REG 0x0002C |
| |
| #define HNS3_RING_TX_RING_BASEADDR_L_REG 0x00040 |
| #define HNS3_RING_TX_RING_BASEADDR_H_REG 0x00044 |
| #define HNS3_RING_TX_RING_BD_NUM_REG 0x00048 |
| #define HNS3_RING_TX_RING_TC_REG 0x00050 |
| #define HNS3_RING_TX_RING_TAIL_REG 0x00058 |
| #define HNS3_RING_TX_RING_HEAD_REG 0x0005C |
| #define HNS3_RING_TX_RING_FBDNUM_REG 0x00060 |
| #define HNS3_RING_TX_RING_OFFSET_REG 0x00064 |
| #define HNS3_RING_TX_RING_PKTNUM_RECORD_REG 0x0006C |
| |
| #define HNS3_RING_PREFETCH_EN_REG 0x0007C |
| #define HNS3_RING_CFG_VF_NUM_REG 0x00080 |
| #define HNS3_RING_ASID_REG 0x0008C |
| #define HNS3_RING_RX_VM_REG 0x00090 |
| #define HNS3_RING_T0_BE_RST 0x00094 |
| #define HNS3_RING_COULD_BE_RST 0x00098 |
| #define HNS3_RING_WRR_WEIGHT_REG 0x0009c |
| |
| #define HNS3_RING_INTMSK_RXWL_REG 0x000A0 |
| #define HNS3_RING_INTSTS_RX_RING_REG 0x000A4 |
| #define HNS3_RX_RING_INT_STS_REG 0x000A8 |
| #define HNS3_RING_INTMSK_TXWL_REG 0x000AC |
| #define HNS3_RING_INTSTS_TX_RING_REG 0x000B0 |
| #define HNS3_TX_RING_INT_STS_REG 0x000B4 |
| #define HNS3_RING_INTMSK_RX_OVERTIME_REG 0x000B8 |
| #define HNS3_RING_INTSTS_RX_OVERTIME_REG 0x000BC |
| #define HNS3_RING_INTMSK_TX_OVERTIME_REG 0x000C4 |
| #define HNS3_RING_INTSTS_TX_OVERTIME_REG 0x000C8 |
| |
| #define HNS3_RING_MB_CTRL_REG 0x00100 |
| #define HNS3_RING_MB_DATA_BASE_REG 0x00200 |
| |
| #define HNS3_TX_REG_OFFSET 0x40 |
| |
| #define HNS3_RX_HEAD_SIZE 256 |
| |
| #define HNS3_TX_TIMEOUT (5 * HZ) |
| #define HNS3_RING_NAME_LEN 16 |
| #define HNS3_BUFFER_SIZE_2048 2048 |
| #define HNS3_RING_MAX_PENDING 32768 |
| #define HNS3_RING_MIN_PENDING 8 |
| #define HNS3_RING_BD_MULTIPLE 8 |
| #define HNS3_MAX_MTU 9728 |
| |
| #define HNS3_BD_SIZE_512_TYPE 0 |
| #define HNS3_BD_SIZE_1024_TYPE 1 |
| #define HNS3_BD_SIZE_2048_TYPE 2 |
| #define HNS3_BD_SIZE_4096_TYPE 3 |
| |
| #define HNS3_RX_FLAG_VLAN_PRESENT 0x1 |
| #define HNS3_RX_FLAG_L3ID_IPV4 0x0 |
| #define HNS3_RX_FLAG_L3ID_IPV6 0x1 |
| #define HNS3_RX_FLAG_L4ID_UDP 0x0 |
| #define HNS3_RX_FLAG_L4ID_TCP 0x1 |
| |
| #define HNS3_RXD_DMAC_S 0 |
| #define HNS3_RXD_DMAC_M (0x3 << HNS3_RXD_DMAC_S) |
| #define HNS3_RXD_VLAN_S 2 |
| #define HNS3_RXD_VLAN_M (0x3 << HNS3_RXD_VLAN_S) |
| #define HNS3_RXD_L3ID_S 4 |
| #define HNS3_RXD_L3ID_M (0xf << HNS3_RXD_L3ID_S) |
| #define HNS3_RXD_L4ID_S 8 |
| #define HNS3_RXD_L4ID_M (0xf << HNS3_RXD_L4ID_S) |
| #define HNS3_RXD_FRAG_B 12 |
| #define HNS3_RXD_STRP_TAGP_S 13 |
| #define HNS3_RXD_STRP_TAGP_M (0x3 << HNS3_RXD_STRP_TAGP_S) |
| |
| #define HNS3_RXD_L2E_B 16 |
| #define HNS3_RXD_L3E_B 17 |
| #define HNS3_RXD_L4E_B 18 |
| #define HNS3_RXD_TRUNCAT_B 19 |
| #define HNS3_RXD_HOI_B 20 |
| #define HNS3_RXD_DOI_B 21 |
| #define HNS3_RXD_OL3E_B 22 |
| #define HNS3_RXD_OL4E_B 23 |
| |
| #define HNS3_RXD_ODMAC_S 0 |
| #define HNS3_RXD_ODMAC_M (0x3 << HNS3_RXD_ODMAC_S) |
| #define HNS3_RXD_OVLAN_S 2 |
| #define HNS3_RXD_OVLAN_M (0x3 << HNS3_RXD_OVLAN_S) |
| #define HNS3_RXD_OL3ID_S 4 |
| #define HNS3_RXD_OL3ID_M (0xf << HNS3_RXD_OL3ID_S) |
| #define HNS3_RXD_OL4ID_S 8 |
| #define HNS3_RXD_OL4ID_M (0xf << HNS3_RXD_OL4ID_S) |
| #define HNS3_RXD_FBHI_S 12 |
| #define HNS3_RXD_FBHI_M (0x3 << HNS3_RXD_FBHI_S) |
| #define HNS3_RXD_FBLI_S 14 |
| #define HNS3_RXD_FBLI_M (0x3 << HNS3_RXD_FBLI_S) |
| |
| #define HNS3_RXD_BDTYPE_S 0 |
| #define HNS3_RXD_BDTYPE_M (0xf << HNS3_RXD_BDTYPE_S) |
| #define HNS3_RXD_VLD_B 4 |
| #define HNS3_RXD_UDP0_B 5 |
| #define HNS3_RXD_EXTEND_B 7 |
| #define HNS3_RXD_FE_B 8 |
| #define HNS3_RXD_LUM_B 9 |
| #define HNS3_RXD_CRCP_B 10 |
| #define HNS3_RXD_L3L4P_B 11 |
| #define HNS3_RXD_TSIND_S 12 |
| #define HNS3_RXD_TSIND_M (0x7 << HNS3_RXD_TSIND_S) |
| #define HNS3_RXD_LKBK_B 15 |
| #define HNS3_RXD_HDL_S 16 |
| #define HNS3_RXD_HDL_M (0x7ff << HNS3_RXD_HDL_S) |
| #define HNS3_RXD_HSIND_B 31 |
| |
| #define HNS3_TXD_L3T_S 0 |
| #define HNS3_TXD_L3T_M (0x3 << HNS3_TXD_L3T_S) |
| #define HNS3_TXD_L4T_S 2 |
| #define HNS3_TXD_L4T_M (0x3 << HNS3_TXD_L4T_S) |
| #define HNS3_TXD_L3CS_B 4 |
| #define HNS3_TXD_L4CS_B 5 |
| #define HNS3_TXD_VLAN_B 6 |
| #define HNS3_TXD_TSO_B 7 |
| |
| #define HNS3_TXD_L2LEN_S 8 |
| #define HNS3_TXD_L2LEN_M (0xff << HNS3_TXD_L2LEN_S) |
| #define HNS3_TXD_L3LEN_S 16 |
| #define HNS3_TXD_L3LEN_M (0xff << HNS3_TXD_L3LEN_S) |
| #define HNS3_TXD_L4LEN_S 24 |
| #define HNS3_TXD_L4LEN_M (0xff << HNS3_TXD_L4LEN_S) |
| |
| #define HNS3_TXD_OL3T_S 0 |
| #define HNS3_TXD_OL3T_M (0x3 << HNS3_TXD_OL3T_S) |
| #define HNS3_TXD_OVLAN_B 2 |
| #define HNS3_TXD_MACSEC_B 3 |
| #define HNS3_TXD_TUNTYPE_S 4 |
| #define HNS3_TXD_TUNTYPE_M (0xf << HNS3_TXD_TUNTYPE_S) |
| |
| #define HNS3_TXD_BDTYPE_S 0 |
| #define HNS3_TXD_BDTYPE_M (0xf << HNS3_TXD_BDTYPE_S) |
| #define HNS3_TXD_FE_B 4 |
| #define HNS3_TXD_SC_S 5 |
| #define HNS3_TXD_SC_M (0x3 << HNS3_TXD_SC_S) |
| #define HNS3_TXD_EXTEND_B 7 |
| #define HNS3_TXD_VLD_B 8 |
| #define HNS3_TXD_RI_B 9 |
| #define HNS3_TXD_RA_B 10 |
| #define HNS3_TXD_TSYN_B 11 |
| #define HNS3_TXD_DECTTL_S 12 |
| #define HNS3_TXD_DECTTL_M (0xf << HNS3_TXD_DECTTL_S) |
| |
| #define HNS3_TXD_MSS_S 0 |
| #define HNS3_TXD_MSS_M (0x3fff << HNS3_TXD_MSS_S) |
| |
| #define HNS3_VECTOR_TX_IRQ BIT_ULL(0) |
| #define HNS3_VECTOR_RX_IRQ BIT_ULL(1) |
| |
| #define HNS3_VECTOR_NOT_INITED 0 |
| #define HNS3_VECTOR_INITED 1 |
| |
| #define HNS3_MAX_BD_SIZE 65535 |
| #define HNS3_MAX_BD_PER_FRAG 8 |
| #define HNS3_MAX_BD_PER_PKT MAX_SKB_FRAGS |
| |
| #define HNS3_VECTOR_GL0_OFFSET 0x100 |
| #define HNS3_VECTOR_GL1_OFFSET 0x200 |
| #define HNS3_VECTOR_GL2_OFFSET 0x300 |
| #define HNS3_VECTOR_RL_OFFSET 0x900 |
| #define HNS3_VECTOR_RL_EN_B 6 |
| |
| enum hns3_pkt_l3t_type { |
| HNS3_L3T_NONE, |
| HNS3_L3T_IPV6, |
| HNS3_L3T_IPV4, |
| HNS3_L3T_RESERVED |
| }; |
| |
| enum hns3_pkt_l4t_type { |
| HNS3_L4T_UNKNOWN, |
| HNS3_L4T_TCP, |
| HNS3_L4T_UDP, |
| HNS3_L4T_SCTP |
| }; |
| |
| enum hns3_pkt_ol3t_type { |
| HNS3_OL3T_NONE, |
| HNS3_OL3T_IPV6, |
| HNS3_OL3T_IPV4_NO_CSUM, |
| HNS3_OL3T_IPV4_CSUM |
| }; |
| |
| enum hns3_pkt_tun_type { |
| HNS3_TUN_NONE, |
| HNS3_TUN_MAC_IN_UDP, |
| HNS3_TUN_NVGRE, |
| HNS3_TUN_OTHER |
| }; |
| |
| /* hardware spec ring buffer format */ |
| struct __packed hns3_desc { |
| __le64 addr; |
| union { |
| struct { |
| __le16 vlan_tag; |
| __le16 send_size; |
| union { |
| __le32 type_cs_vlan_tso_len; |
| struct { |
| __u8 type_cs_vlan_tso; |
| __u8 l2_len; |
| __u8 l3_len; |
| __u8 l4_len; |
| }; |
| }; |
| __le16 outer_vlan_tag; |
| __le16 tv; |
| |
| union { |
| __le32 ol_type_vlan_len_msec; |
| struct { |
| __u8 ol_type_vlan_msec; |
| __u8 ol2_len; |
| __u8 ol3_len; |
| __u8 ol4_len; |
| }; |
| }; |
| |
| __le32 paylen; |
| __le16 bdtp_fe_sc_vld_ra_ri; |
| __le16 mss; |
| } tx; |
| |
| struct { |
| __le32 l234_info; |
| __le16 pkt_len; |
| __le16 size; |
| |
| __le32 rss_hash; |
| __le16 fd_id; |
| __le16 vlan_tag; |
| |
| union { |
| __le32 ol_info; |
| struct { |
| __le16 o_dm_vlan_id_fb; |
| __le16 ot_vlan_tag; |
| }; |
| }; |
| |
| __le32 bd_base_info; |
| } rx; |
| }; |
| }; |
| |
| struct hns3_desc_cb { |
| dma_addr_t dma; /* dma address of this desc */ |
| void *buf; /* cpu addr for a desc */ |
| |
| /* priv data for the desc, e.g. skb when use with ip stack*/ |
| void *priv; |
| u32 page_offset; |
| u32 length; /* length of the buffer */ |
| |
| u16 reuse_flag; |
| |
| /* desc type, used by the ring user to mark the type of the priv data */ |
| u16 type; |
| }; |
| |
| enum hns3_pkt_l3type { |
| HNS3_L3_TYPE_IPV4, |
| HNS3_L3_TYPE_IPV6, |
| HNS3_L3_TYPE_ARP, |
| HNS3_L3_TYPE_RARP, |
| HNS3_L3_TYPE_IPV4_OPT, |
| HNS3_L3_TYPE_IPV6_EXT, |
| HNS3_L3_TYPE_LLDP, |
| HNS3_L3_TYPE_BPDU, |
| HNS3_L3_TYPE_MAC_PAUSE, |
| HNS3_L3_TYPE_PFC_PAUSE,/* 0x9*/ |
| |
| /* reserved for 0xA~0xB*/ |
| |
| HNS3_L3_TYPE_CNM = 0xc, |
| |
| /* reserved for 0xD~0xE*/ |
| |
| HNS3_L3_TYPE_PARSE_FAIL = 0xf /* must be last */ |
| }; |
| |
| enum hns3_pkt_l4type { |
| HNS3_L4_TYPE_UDP, |
| HNS3_L4_TYPE_TCP, |
| HNS3_L4_TYPE_GRE, |
| HNS3_L4_TYPE_SCTP, |
| HNS3_L4_TYPE_IGMP, |
| HNS3_L4_TYPE_ICMP, |
| |
| /* reserved for 0x6~0xE */ |
| |
| HNS3_L4_TYPE_PARSE_FAIL = 0xf /* must be last */ |
| }; |
| |
| enum hns3_pkt_ol3type { |
| HNS3_OL3_TYPE_IPV4 = 0, |
| HNS3_OL3_TYPE_IPV6, |
| /* reserved for 0x2~0x3 */ |
| HNS3_OL3_TYPE_IPV4_OPT = 4, |
| HNS3_OL3_TYPE_IPV6_EXT, |
| |
| /* reserved for 0x6~0xE*/ |
| |
| HNS3_OL3_TYPE_PARSE_FAIL = 0xf /* must be last */ |
| }; |
| |
| enum hns3_pkt_ol4type { |
| HNS3_OL4_TYPE_NO_TUN, |
| HNS3_OL4_TYPE_MAC_IN_UDP, |
| HNS3_OL4_TYPE_NVGRE, |
| HNS3_OL4_TYPE_UNKNOWN |
| }; |
| |
| struct ring_stats { |
| u64 io_err_cnt; |
| u64 sw_err_cnt; |
| u64 seg_pkt_cnt; |
| union { |
| struct { |
| u64 tx_pkts; |
| u64 tx_bytes; |
| u64 tx_err_cnt; |
| u64 restart_queue; |
| u64 tx_busy; |
| }; |
| struct { |
| u64 rx_pkts; |
| u64 rx_bytes; |
| u64 rx_err_cnt; |
| u64 reuse_pg_cnt; |
| u64 err_pkt_len; |
| u64 non_vld_descs; |
| u64 err_bd_num; |
| u64 l2_err; |
| u64 l3l4_csum_err; |
| }; |
| }; |
| }; |
| |
| struct hns3_enet_ring { |
| u8 __iomem *io_base; /* base io address for the ring */ |
| struct hns3_desc *desc; /* dma map address space */ |
| struct hns3_desc_cb *desc_cb; |
| struct hns3_enet_ring *next; |
| struct hns3_enet_tqp_vector *tqp_vector; |
| struct hnae3_queue *tqp; |
| char ring_name[HNS3_RING_NAME_LEN]; |
| struct device *dev; /* will be used for DMA mapping of descriptors */ |
| |
| /* statistic */ |
| struct ring_stats stats; |
| struct u64_stats_sync syncp; |
| |
| dma_addr_t desc_dma_addr; |
| u32 buf_size; /* size for hnae_desc->addr, preset by AE */ |
| u16 desc_num; /* total number of desc */ |
| u16 max_desc_num_per_pkt; |
| u16 max_raw_data_sz_per_desc; |
| u16 max_pkt_size; |
| int next_to_use; /* idx of next spare desc */ |
| |
| /* idx of lastest sent desc, the ring is empty when equal to |
| * next_to_use |
| */ |
| int next_to_clean; |
| |
| u32 flag; /* ring attribute */ |
| int irq_init_flag; |
| |
| int numa_node; |
| cpumask_t affinity_mask; |
| }; |
| |
| struct hns_queue; |
| |
| struct hns3_nic_ring_data { |
| struct hns3_enet_ring *ring; |
| struct napi_struct napi; |
| int queue_index; |
| int (*poll_one)(struct hns3_nic_ring_data *, int, void *); |
| void (*ex_process)(struct hns3_nic_ring_data *, struct sk_buff *); |
| void (*fini_process)(struct hns3_nic_ring_data *); |
| }; |
| |
| struct hns3_nic_ops { |
| int (*fill_desc)(struct hns3_enet_ring *ring, void *priv, |
| int size, dma_addr_t dma, int frag_end, |
| enum hns_desc_type type); |
| int (*maybe_stop_tx)(struct sk_buff **out_skb, |
| int *bnum, struct hns3_enet_ring *ring); |
| void (*get_rxd_bnum)(u32 bnum_flag, int *out_bnum); |
| }; |
| |
| enum hns3_flow_level_range { |
| HNS3_FLOW_LOW = 0, |
| HNS3_FLOW_MID = 1, |
| HNS3_FLOW_HIGH = 2, |
| HNS3_FLOW_ULTRA = 3, |
| }; |
| |
| enum hns3_link_mode_bits { |
| HNS3_LM_FIBRE_BIT = BIT(0), |
| HNS3_LM_AUTONEG_BIT = BIT(1), |
| HNS3_LM_TP_BIT = BIT(2), |
| HNS3_LM_PAUSE_BIT = BIT(3), |
| HNS3_LM_BACKPLANE_BIT = BIT(4), |
| HNS3_LM_10BASET_HALF_BIT = BIT(5), |
| HNS3_LM_10BASET_FULL_BIT = BIT(6), |
| HNS3_LM_100BASET_HALF_BIT = BIT(7), |
| HNS3_LM_100BASET_FULL_BIT = BIT(8), |
| HNS3_LM_1000BASET_FULL_BIT = BIT(9), |
| HNS3_LM_10000BASEKR_FULL_BIT = BIT(10), |
| HNS3_LM_25000BASEKR_FULL_BIT = BIT(11), |
| HNS3_LM_40000BASELR4_FULL_BIT = BIT(12), |
| HNS3_LM_50000BASEKR2_FULL_BIT = BIT(13), |
| HNS3_LM_100000BASEKR4_FULL_BIT = BIT(14), |
| HNS3_LM_COUNT = 15 |
| }; |
| |
| #define HNS3_INT_GL_MAX 0x1FE0 |
| #define HNS3_INT_GL_50K 0x0014 |
| #define HNS3_INT_GL_20K 0x0032 |
| #define HNS3_INT_GL_18K 0x0036 |
| #define HNS3_INT_GL_8K 0x007C |
| |
| #define HNS3_INT_RL_MAX 0x00EC |
| #define HNS3_INT_RL_ENABLE_MASK 0x40 |
| |
| #define HNS3_INT_ADAPT_DOWN_START 100 |
| |
| struct hns3_enet_coalesce { |
| u16 int_gl; |
| u8 gl_adapt_enable; |
| enum hns3_flow_level_range flow_level; |
| }; |
| |
| struct hns3_enet_ring_group { |
| /* array of pointers to rings */ |
| struct hns3_enet_ring *ring; |
| u64 total_bytes; /* total bytes processed this group */ |
| u64 total_packets; /* total packets processed this group */ |
| u16 count; |
| struct hns3_enet_coalesce coal; |
| }; |
| |
| struct hns3_enet_tqp_vector { |
| struct hnae3_handle *handle; |
| u8 __iomem *mask_addr; |
| int vector_irq; |
| int irq_init_flag; |
| |
| u16 idx; /* index in the TQP vector array per handle. */ |
| |
| struct napi_struct napi; |
| |
| struct hns3_enet_ring_group rx_group; |
| struct hns3_enet_ring_group tx_group; |
| |
| u16 num_tqps; /* total number of tqps in TQP vector */ |
| |
| char name[HNAE3_INT_NAME_LEN]; |
| |
| /* when 0 should adjust interrupt coalesce parameter */ |
| u8 int_adapt_down; |
| unsigned long last_jiffies; |
| } ____cacheline_internodealigned_in_smp; |
| |
| enum hns3_udp_tnl_type { |
| HNS3_UDP_TNL_VXLAN, |
| HNS3_UDP_TNL_GENEVE, |
| HNS3_UDP_TNL_MAX, |
| }; |
| |
| struct hns3_udp_tunnel { |
| u16 dst_port; |
| int used; |
| }; |
| |
| struct hns3_nic_priv { |
| struct hnae3_handle *ae_handle; |
| u32 enet_ver; |
| u32 port_id; |
| struct net_device *netdev; |
| struct device *dev; |
| struct hns3_nic_ops ops; |
| |
| /** |
| * the cb for nic to manage the ring buffer, the first half of the |
| * array is for tx_ring and vice versa for the second half |
| */ |
| struct hns3_nic_ring_data *ring_data; |
| struct hns3_enet_tqp_vector *tqp_vector; |
| u16 vector_num; |
| |
| /* The most recently read link state */ |
| int link; |
| u64 tx_timeout_count; |
| |
| unsigned long state; |
| |
| struct timer_list service_timer; |
| |
| struct work_struct service_task; |
| |
| struct notifier_block notifier_block; |
| /* Vxlan/Geneve information */ |
| struct hns3_udp_tunnel udp_tnl[HNS3_UDP_TNL_MAX]; |
| unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; |
| }; |
| |
| union l3_hdr_info { |
| struct iphdr *v4; |
| struct ipv6hdr *v6; |
| unsigned char *hdr; |
| }; |
| |
| union l4_hdr_info { |
| struct tcphdr *tcp; |
| struct udphdr *udp; |
| unsigned char *hdr; |
| }; |
| |
| /* the distance between [begin, end) in a ring buffer |
| * note: there is a unuse slot between the begin and the end |
| */ |
| static inline int ring_dist(struct hns3_enet_ring *ring, int begin, int end) |
| { |
| return (end - begin + ring->desc_num) % ring->desc_num; |
| } |
| |
| static inline int ring_space(struct hns3_enet_ring *ring) |
| { |
| return ring->desc_num - |
| ring_dist(ring, ring->next_to_clean, ring->next_to_use) - 1; |
| } |
| |
| static inline int is_ring_empty(struct hns3_enet_ring *ring) |
| { |
| return ring->next_to_use == ring->next_to_clean; |
| } |
| |
| static inline void hns3_write_reg(void __iomem *base, u32 reg, u32 value) |
| { |
| u8 __iomem *reg_addr = READ_ONCE(base); |
| |
| writel(value, reg_addr + reg); |
| } |
| |
| #define hns3_write_dev(a, reg, value) \ |
| hns3_write_reg((a)->io_base, (reg), (value)) |
| |
| #define hnae3_queue_xmit(tqp, buf_num) writel_relaxed(buf_num, \ |
| (tqp)->io_base + HNS3_RING_TX_RING_TAIL_REG) |
| |
| #define ring_to_dev(ring) (&(ring)->tqp->handle->pdev->dev) |
| |
| #define ring_to_dma_dir(ring) (HNAE3_IS_TX_RING(ring) ? \ |
| DMA_TO_DEVICE : DMA_FROM_DEVICE) |
| |
| #define tx_ring_data(priv, idx) ((priv)->ring_data[idx]) |
| |
| #define hnae3_buf_size(_ring) ((_ring)->buf_size) |
| #define hnae3_page_order(_ring) (get_order(hnae3_buf_size(_ring))) |
| #define hnae3_page_size(_ring) (PAGE_SIZE << hnae3_page_order(_ring)) |
| |
| /* iterator for handling rings in ring group */ |
| #define hns3_for_each_ring(pos, head) \ |
| for (pos = (head).ring; pos; pos = pos->next) |
| |
| #define hns3_get_handle(ndev) \ |
| (((struct hns3_nic_priv *)netdev_priv(ndev))->ae_handle) |
| |
| #define hns3_gl_usec_to_reg(int_gl) (int_gl >> 1) |
| #define hns3_gl_round_down(int_gl) round_down(int_gl, 2) |
| |
| #define hns3_rl_usec_to_reg(int_rl) (int_rl >> 2) |
| #define hns3_rl_round_down(int_rl) round_down(int_rl, 4) |
| |
| void hns3_ethtool_set_ops(struct net_device *netdev); |
| int hns3_set_channels(struct net_device *netdev, |
| struct ethtool_channels *ch); |
| |
| bool hns3_clean_tx_ring(struct hns3_enet_ring *ring, int budget); |
| int hns3_init_all_ring(struct hns3_nic_priv *priv); |
| int hns3_uninit_all_ring(struct hns3_nic_priv *priv); |
| int hns3_nic_reset_all_ring(struct hnae3_handle *h); |
| netdev_tx_t hns3_nic_net_xmit(struct sk_buff *skb, struct net_device *netdev); |
| int hns3_clean_rx_ring( |
| struct hns3_enet_ring *ring, int budget, |
| void (*rx_fn)(struct hns3_enet_ring *, struct sk_buff *)); |
| |
| void hns3_set_vector_coalesce_rx_gl(struct hns3_enet_tqp_vector *tqp_vector, |
| u32 gl_value); |
| void hns3_set_vector_coalesce_tx_gl(struct hns3_enet_tqp_vector *tqp_vector, |
| u32 gl_value); |
| void hns3_set_vector_coalesce_rl(struct hns3_enet_tqp_vector *tqp_vector, |
| u32 rl_value); |
| |
| #ifdef CONFIG_HNS3_DCB |
| void hns3_dcbnl_setup(struct hnae3_handle *handle); |
| #else |
| static inline void hns3_dcbnl_setup(struct hnae3_handle *handle) {} |
| #endif |
| |
| #endif |
