/* Applied Micro X-Gene SoC Ethernet Driver * * Copyright (c) 2014, Applied Micro Circuits Corporation * Authors: Iyappan Subramanian * Ravi Patel * Keyur Chudgar * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #ifndef __XGENE_ENET_HW_H__ #define __XGENE_ENET_HW_H__ #include "xgene_enet_main.h" struct xgene_enet_pdata; struct xgene_enet_stats; struct xgene_enet_desc_ring; /* clears and then set bits */ static inline void xgene_set_bits(u32 *dst, u32 val, u32 start, u32 len) { u32 end = start + len - 1; u32 mask = GENMASK(end, start); *dst &= ~mask; *dst |= (val << start) & mask; } static inline u32 xgene_get_bits(u32 val, u32 start, u32 end) { return (val & GENMASK(end, start)) >> start; } enum xgene_enet_rm { RM0, RM1, RM3 = 3 }; #define CSR_RING_ID 0x0008 #define OVERWRITE BIT(31) #define IS_BUFFER_POOL BIT(20) #define PREFETCH_BUF_EN BIT(21) #define CSR_RING_ID_BUF 0x000c #define CSR_PBM_COAL 0x0014 #define CSR_PBM_CTICK0 0x0018 #define CSR_PBM_CTICK1 0x001c #define CSR_PBM_CTICK2 0x0020 #define CSR_PBM_CTICK3 0x0024 #define CSR_THRESHOLD0_SET1 0x0030 #define CSR_THRESHOLD1_SET1 0x0034 #define CSR_RING_NE_INT_MODE 0x017c #define CSR_RING_CONFIG 0x006c #define CSR_RING_WR_BASE 0x0070 #define NUM_RING_CONFIG 5 #define BUFPOOL_MODE 3 #define INC_DEC_CMD_ADDR 0x002c #define UDP_HDR_SIZE 2 #define BUF_LEN_CODE_2K 0x5000 #define CREATE_MASK(pos, len) GENMASK((pos)+(len)-1, (pos)) #define CREATE_MASK_ULL(pos, len) GENMASK_ULL((pos)+(len)-1, (pos)) /* Empty slot soft signature */ #define EMPTY_SLOT_INDEX 1 #define EMPTY_SLOT ~0ULL #define WORK_DESC_SIZE 32 #define BUFPOOL_DESC_SIZE 16 #define RING_OWNER_MASK GENMASK(9, 6) #define RING_BUFNUM_MASK GENMASK(5, 0) #define SELTHRSH_POS 3 #define SELTHRSH_LEN 3 #define RINGADDRL_POS 5 #define RINGADDRL_LEN 27 #define RINGADDRH_POS 0 #define RINGADDRH_LEN 7 #define RINGSIZE_POS 23 #define RINGSIZE_LEN 3 #define RINGTYPE_POS 19 #define RINGTYPE_LEN 2 #define RINGMODE_POS 20 #define RINGMODE_LEN 3 #define RECOMTIMEOUTL_POS 28 #define RECOMTIMEOUTL_LEN 4 #define RECOMTIMEOUTH_POS 0 #define RECOMTIMEOUTH_LEN 3 #define NUMMSGSINQ_POS 1 #define NUMMSGSINQ_LEN 16 #define ACCEPTLERR BIT(19) #define QCOHERENT BIT(4) #define RECOMBBUF BIT(27) #define MAC_OFFSET 0x30 #define OFFSET_4 0x04 #define OFFSET_8 0x08 #define BLOCK_ETH_CSR_OFFSET 0x2000 #define BLOCK_ETH_CLE_CSR_OFFSET 0x6000 #define BLOCK_ETH_RING_IF_OFFSET 0x9000 #define BLOCK_ETH_CLKRST_CSR_OFFSET 0xc000 #define BLOCK_ETH_DIAG_CSR_OFFSET 0xD000 #define BLOCK_ETH_MAC_OFFSET 0x0000 #define BLOCK_ETH_MAC_CSR_OFFSET 0x2800 #define CLKEN_ADDR 0xc208 #define SRST_ADDR 0xc200 #define MAC_ADDR_REG_OFFSET 0x00 #define MAC_COMMAND_REG_OFFSET 0x04 #define MAC_WRITE_REG_OFFSET 0x08 #define MAC_READ_REG_OFFSET 0x0c #define MAC_COMMAND_DONE_REG_OFFSET 0x10 #define PCS_ADDR_REG_OFFSET 0x00 #define PCS_COMMAND_REG_OFFSET 0x04 #define PCS_WRITE_REG_OFFSET 0x08 #define PCS_READ_REG_OFFSET 0x0c #define PCS_COMMAND_DONE_REG_OFFSET 0x10 #define MII_MGMT_CONFIG_ADDR 0x20 #define MII_MGMT_COMMAND_ADDR 0x24 #define MII_MGMT_ADDRESS_ADDR 0x28 #define MII_MGMT_CONTROL_ADDR 0x2c #define MII_MGMT_STATUS_ADDR 0x30 #define MII_MGMT_INDICATORS_ADDR 0x34 #define BUSY_MASK BIT(0) #define READ_CYCLE_MASK BIT(0) #define PHY_CONTROL_SET(dst, val) xgene_set_bits(dst, val, 0, 16) #define ENET_SPARE_CFG_REG_ADDR 0x0750 #define RSIF_CONFIG_REG_ADDR 0x0010 #define RSIF_RAM_DBG_REG0_ADDR 0x0048 #define RGMII_REG_0_ADDR 0x07e0 #define CFG_LINK_AGGR_RESUME_0_ADDR 0x07c8 #define DEBUG_REG_ADDR 0x0700 #define CFG_BYPASS_ADDR 0x0294 #define CLE_BYPASS_REG0_0_ADDR 0x0490 #define CLE_BYPASS_REG1_0_ADDR 0x0494 #define CFG_RSIF_FPBUFF_TIMEOUT_EN BIT(31) #define RESUME_TX BIT(0) #define CFG_SPEED_1250 BIT(24) #define TX_PORT0 BIT(0) #define CFG_BYPASS_UNISEC_TX BIT(2) #define CFG_BYPASS_UNISEC_RX BIT(1) #define CFG_CLE_BYPASS_EN0 BIT(31) #define CFG_TXCLK_MUXSEL0_SET(dst, val) xgene_set_bits(dst, val, 29, 3) #define CFG_RXCLK_MUXSEL0_SET(dst, val) xgene_set_bits(dst, val, 26, 3) #define CFG_CLE_IP_PROTOCOL0_SET(dst, val) xgene_set_bits(dst, val, 16, 2) #define CFG_CLE_IP_HDR_LEN_SET(dst, val) xgene_set_bits(dst, val, 8, 5) #define CFG_CLE_DSTQID0_SET(dst, val) xgene_set_bits(dst, val, 0, 12) #define CFG_CLE_FPSEL0_SET(dst, val) xgene_set_bits(dst, val, 16, 4) #define CFG_CLE_NXTFPSEL0_SET(dst, val) xgene_set_bits(dst, val, 20, 4) #define CFG_MACMODE_SET(dst, val) xgene_set_bits(dst, val, 18, 2) #define CFG_WAITASYNCRD_SET(dst, val) xgene_set_bits(dst, val, 0, 16) #define CFG_CLE_DSTQID0(val) ((val) & GENMASK(11, 0)) #define CFG_CLE_FPSEL0(val) (((val) << 16) & GENMASK(19, 16)) #define CSR_ECM_CFG_0_ADDR 0x0220 #define CSR_ECM_CFG_1_ADDR 0x0224 #define CSR_MULTI_DPF0_ADDR 0x0230 #define RXBUF_PAUSE_THRESH 0x0534 #define RXBUF_PAUSE_OFF_THRESH 0x0540 #define DEF_PAUSE_THRES 0x7d #define DEF_PAUSE_OFF_THRES 0x6d #define DEF_QUANTA 0x8000 #define NORM_PAUSE_OPCODE 0x0001 #define PAUSE_XON_EN BIT(30) #define MULTI_DPF_AUTOCTRL BIT(28) #define CFG_CLE_NXTFPSEL0(val) (((val) << 20) & GENMASK(23, 20)) #define ICM_CONFIG0_REG_0_ADDR 0x0400 #define ICM_CONFIG2_REG_0_ADDR 0x0410 #define RX_DV_GATE_REG_0_ADDR 0x05fc #define TX_DV_GATE_EN0 BIT(2) #define RX_DV_GATE_EN0 BIT(1) #define RESUME_RX0 BIT(0) #define ENET_CFGSSQMIFPRESET_ADDR 0x14 #define ENET_CFGSSQMIWQRESET_ADDR 0x1c #define ENET_CFGSSQMIWQASSOC_ADDR 0xe0 #define ENET_CFGSSQMIFPQASSOC_ADDR 0xdc #define ENET_CFGSSQMIQMLITEFPQASSOC_ADDR 0xf0 #define ENET_CFGSSQMIQMLITEWQASSOC_ADDR 0xf4 #define ENET_CFG_MEM_RAM_SHUTDOWN_ADDR 0x70 #define ENET_BLOCK_MEM_RDY_ADDR 0x74 #define MAC_CONFIG_1_ADDR 0x00 #define MAC_CONFIG_2_ADDR 0x04 #define MAX_FRAME_LEN_ADDR 0x10 #define INTERFACE_CONTROL_ADDR 0x38 #define STATION_ADDR0_ADDR 0x40 #define STATION_ADDR1_ADDR 0x44 #define PHY_ADDR_SET(dst, val) xgene_set_bits(dst, val, 8, 5) #define REG_ADDR_SET(dst, val) xgene_set_bits(dst, val, 0, 5) #define ENET_INTERFACE_MODE2_SET(dst, val) xgene_set_bits(dst, val, 8, 2) #define MGMT_CLOCK_SEL_SET(dst, val) xgene_set_bits(dst, val, 0, 3) #define SOFT_RESET1 BIT(31) #define TX_EN BIT(0) #define RX_EN BIT(2) #define TX_FLOW_EN BIT(4) #define RX_FLOW_EN BIT(5) #define ENET_LHD_MODE BIT(25) #define ENET_GHD_MODE BIT(26) #define FULL_DUPLEX2 BIT(0) #define PAD_CRC BIT(2) #define SCAN_AUTO_INCR BIT(5) #define TBYT_ADDR 0x38 #define TPKT_ADDR 0x39 #define TDRP_ADDR 0x45 #define TFCS_ADDR 0x47 #define TUND_ADDR 0x4a #define TSO_IPPROTO_TCP 1 #define USERINFO_POS 0 #define USERINFO_LEN 32 #define FPQNUM_POS 32 #define FPQNUM_LEN 12 #define ELERR_POS 46 #define ELERR_LEN 2 #define NV_POS 50 #define NV_LEN 1 #define LL_POS 51 #define LL_LEN 1 #define LERR_POS 60 #define LERR_LEN 3 #define STASH_POS 52 #define STASH_LEN 2 #define BUFDATALEN_POS 48 #define BUFDATALEN_LEN 15 #define DATAADDR_POS 0 #define DATAADDR_LEN 42 #define COHERENT_POS 63 #define HENQNUM_POS 48 #define HENQNUM_LEN 12 #define TYPESEL_POS 44 #define TYPESEL_LEN 4 #define ETHHDR_POS 12 #define ETHHDR_LEN 8 #define IC_POS 35 /* Insert CRC */ #define TCPHDR_POS 0 #define TCPHDR_LEN 6 #define IPHDR_POS 6 #define IPHDR_LEN 6 #define MSS_POS 20 #define MSS_LEN 2 #define EC_POS 22 /* Enable checksum */ #define EC_LEN 1 #define ET_POS 23 /* Enable TSO */ #define IS_POS 24 /* IP protocol select */ #define IS_LEN 1 #define TYPE_ETH_WORK_MESSAGE_POS 44 #define LL_BYTES_MSB_POS 56 #define LL_BYTES_MSB_LEN 8 #define LL_BYTES_LSB_POS 48 #define LL_BYTES_LSB_LEN 12 #define LL_LEN_POS 48 #define LL_LEN_LEN 8 #define DATALEN_MASK GENMASK(11, 0) #define LAST_BUFFER (0x7800ULL << BUFDATALEN_POS) #define TSO_MSS0_POS 0 #define TSO_MSS0_LEN 14 #define TSO_MSS1_POS 16 #define TSO_MSS1_LEN 14 struct xgene_enet_raw_desc { __le64 m0; __le64 m1; __le64 m2; __le64 m3; }; struct xgene_enet_raw_desc16 { __le64 m0; __le64 m1; }; static inline void xgene_enet_mark_desc_slot_empty(void *desc_slot_ptr) { __le64 *desc_slot = desc_slot_ptr; desc_slot[EMPTY_SLOT_INDEX] = cpu_to_le64(EMPTY_SLOT); } static inline bool xgene_enet_is_desc_slot_empty(void *desc_slot_ptr) { __le64 *desc_slot = desc_slot_ptr; return (desc_slot[EMPTY_SLOT_INDEX] == cpu_to_le64(EMPTY_SLOT)); } enum xgene_enet_ring_cfgsize { RING_CFGSIZE_512B, RING_CFGSIZE_2KB, RING_CFGSIZE_16KB, RING_CFGSIZE_64KB, RING_CFGSIZE_512KB, RING_CFGSIZE_INVALID }; enum xgene_enet_ring_type { RING_DISABLED, RING_REGULAR, RING_BUFPOOL }; enum xgene_ring_owner { RING_OWNER_ETH0, RING_OWNER_ETH1, RING_OWNER_CPU = 15, RING_OWNER_INVALID }; enum xgene_enet_ring_bufnum { RING_BUFNUM_REGULAR = 0x0, RING_BUFNUM_BUFPOOL = 0x20, RING_BUFNUM_INVALID }; enum xgene_enet_err_code { HBF_READ_DATA = 3, HBF_LL_READ = 4, BAD_WORK_MSG = 6, BUFPOOL_TIMEOUT = 15, INGRESS_CRC = 16, INGRESS_CHECKSUM = 17, INGRESS_TRUNC_FRAME = 18, INGRESS_PKT_LEN = 19, INGRESS_PKT_UNDER = 20, INGRESS_FIFO_OVERRUN = 21, INGRESS_CHECKSUM_COMPUTE = 26, ERR_CODE_INVALID }; static inline enum xgene_ring_owner xgene_enet_ring_owner(u16 id) { return (id & RING_OWNER_MASK) >> 6; } static inline u8 xgene_enet_ring_bufnum(u16 id) { return id & RING_BUFNUM_MASK; } static inline bool xgene_enet_is_bufpool(u16 id) { return ((id & RING_BUFNUM_MASK) >= 0x20) ? true : false; } static inline u8 xgene_enet_get_fpsel(u16 id) { if (xgene_enet_is_bufpool(id)) return xgene_enet_ring_bufnum(id) - RING_BUFNUM_BUFPOOL; return 0; } static inline u16 xgene_enet_get_numslots(u16 id, u32 size) { bool is_bufpool = xgene_enet_is_bufpool(id); return (is_bufpool) ? size / BUFPOOL_DESC_SIZE : size / WORK_DESC_SIZE; } void xgene_enet_parse_error(struct xgene_enet_desc_ring *ring, struct xgene_enet_pdata *pdata, enum xgene_enet_err_code status); int xgene_enet_mdio_config(struct xgene_enet_pdata *pdata); void xgene_enet_mdio_remove(struct xgene_enet_pdata *pdata); bool xgene_ring_mgr_init(struct xgene_enet_pdata *p); int xgene_enet_phy_connect(struct net_device *ndev); void xgene_enet_phy_disconnect(struct xgene_enet_pdata *pdata); extern const struct xgene_mac_ops xgene_gmac_ops; extern const struct xgene_port_ops xgene_gport_ops; extern struct xgene_ring_ops xgene_ring1_ops; #endif /* __XGENE_ENET_HW_H__ */