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1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * Copyright (C) 2006 PA Semi, Inc4 *5 * Driver for the PA6T-1682M onchip 1G/10G Ethernet MACs, soft state and6 * hardware register layouts.7 */8 9#ifndef PASEMI_MAC_H10#define PASEMI_MAC_H11 12#include <linux/ethtool.h>13#include <linux/netdevice.h>14#include <linux/spinlock.h>15#include <linux/phy.h>16 17/* Must be a power of two */18#define RX_RING_SIZE 204819#define TX_RING_SIZE 409620#define CS_RING_SIZE (TX_RING_SIZE*2)21 22 23#define MAX_CS 224 25struct pasemi_mac_txring {26 struct pasemi_dmachan chan; /* Must be first */27 spinlock_t lock;28 unsigned int size;29 unsigned int next_to_fill;30 unsigned int next_to_clean;31 struct pasemi_mac_buffer *ring_info;32 struct pasemi_mac *mac; /* Needed in intr handler */33 struct timer_list clean_timer;34};35 36struct pasemi_mac_rxring {37 struct pasemi_dmachan chan; /* Must be first */38 spinlock_t lock;39 u64 *buffers; /* RX interface buffer ring */40 dma_addr_t buf_dma;41 unsigned int size;42 unsigned int next_to_fill;43 unsigned int next_to_clean;44 struct pasemi_mac_buffer *ring_info;45 struct pasemi_mac *mac; /* Needed in intr handler */46};47 48struct pasemi_mac_csring {49 struct pasemi_dmachan chan;50 unsigned int size;51 unsigned int next_to_fill;52 int events[2];53 int last_event;54 int fun;55};56 57struct pasemi_mac {58 struct net_device *netdev;59 struct pci_dev *pdev;60 struct pci_dev *dma_pdev;61 struct pci_dev *iob_pdev;62 struct napi_struct napi;63 64 int bufsz; /* RX ring buffer size */65 int last_cs;66 int num_cs;67 u32 dma_if;68 u8 type;69#define MAC_TYPE_GMAC 170#define MAC_TYPE_XAUI 271 72 u8 mac_addr[ETH_ALEN];73 74 struct timer_list rxtimer;75 76 struct pasemi_mac_txring *tx;77 struct pasemi_mac_rxring *rx;78 struct pasemi_mac_csring *cs[MAX_CS];79 char tx_irq_name[10]; /* "eth%d tx" */80 char rx_irq_name[10]; /* "eth%d rx" */81 int link;82 int speed;83 int duplex;84 85 unsigned int msg_enable;86};87 88/* Software status descriptor (ring_info) */89struct pasemi_mac_buffer {90 struct sk_buff *skb;91 dma_addr_t dma;92};93 94#define TX_DESC(tx, num) ((tx)->chan.ring_virt[(num) & (TX_RING_SIZE-1)])95#define TX_DESC_INFO(tx, num) ((tx)->ring_info[(num) & (TX_RING_SIZE-1)])96#define RX_DESC(rx, num) ((rx)->chan.ring_virt[(num) & (RX_RING_SIZE-1)])97#define RX_DESC_INFO(rx, num) ((rx)->ring_info[(num) & (RX_RING_SIZE-1)])98#define RX_BUFF(rx, num) ((rx)->buffers[(num) & (RX_RING_SIZE-1)])99#define CS_DESC(cs, num) ((cs)->chan.ring_virt[(num) & (CS_RING_SIZE-1)])100 101#define RING_USED(ring) (((ring)->next_to_fill - (ring)->next_to_clean) \102 & ((ring)->size - 1))103#define RING_AVAIL(ring) ((ring->size) - RING_USED(ring))104 105/* PCI register offsets and formats */106 107 108/* MAC CFG register offsets */109enum {110 PAS_MAC_CFG_PCFG = 0x80,111 PAS_MAC_CFG_MACCFG = 0x84,112 PAS_MAC_CFG_ADR0 = 0x8c,113 PAS_MAC_CFG_ADR1 = 0x90,114 PAS_MAC_CFG_TXP = 0x98,115 PAS_MAC_CFG_RMON = 0x100,116 PAS_MAC_IPC_CHNL = 0x208,117};118 119/* MAC CFG register fields */120#define PAS_MAC_CFG_PCFG_PE 0x80000000121#define PAS_MAC_CFG_PCFG_CE 0x40000000122#define PAS_MAC_CFG_PCFG_BU 0x20000000123#define PAS_MAC_CFG_PCFG_TT 0x10000000124#define PAS_MAC_CFG_PCFG_TSR_M 0x0c000000125#define PAS_MAC_CFG_PCFG_TSR_10M 0x00000000126#define PAS_MAC_CFG_PCFG_TSR_100M 0x04000000127#define PAS_MAC_CFG_PCFG_TSR_1G 0x08000000128#define PAS_MAC_CFG_PCFG_TSR_10G 0x0c000000129#define PAS_MAC_CFG_PCFG_T24 0x02000000130#define PAS_MAC_CFG_PCFG_PR 0x01000000131#define PAS_MAC_CFG_PCFG_CRO_M 0x00ff0000132#define PAS_MAC_CFG_PCFG_CRO_S 16133#define PAS_MAC_CFG_PCFG_IPO_M 0x0000ff00134#define PAS_MAC_CFG_PCFG_IPO_S 8135#define PAS_MAC_CFG_PCFG_S1 0x00000080136#define PAS_MAC_CFG_PCFG_IO_M 0x00000060137#define PAS_MAC_CFG_PCFG_IO_MAC 0x00000000138#define PAS_MAC_CFG_PCFG_IO_OFF 0x00000020139#define PAS_MAC_CFG_PCFG_IO_IND_ETH 0x00000040140#define PAS_MAC_CFG_PCFG_IO_IND_IP 0x00000060141#define PAS_MAC_CFG_PCFG_LP 0x00000010142#define PAS_MAC_CFG_PCFG_TS 0x00000008143#define PAS_MAC_CFG_PCFG_HD 0x00000004144#define PAS_MAC_CFG_PCFG_SPD_M 0x00000003145#define PAS_MAC_CFG_PCFG_SPD_10M 0x00000000146#define PAS_MAC_CFG_PCFG_SPD_100M 0x00000001147#define PAS_MAC_CFG_PCFG_SPD_1G 0x00000002148#define PAS_MAC_CFG_PCFG_SPD_10G 0x00000003149 150#define PAS_MAC_CFG_MACCFG_TXT_M 0x70000000151#define PAS_MAC_CFG_MACCFG_TXT_S 28152#define PAS_MAC_CFG_MACCFG_PRES_M 0x0f000000153#define PAS_MAC_CFG_MACCFG_PRES_S 24154#define PAS_MAC_CFG_MACCFG_MAXF_M 0x00ffff00155#define PAS_MAC_CFG_MACCFG_MAXF_S 8156#define PAS_MAC_CFG_MACCFG_MAXF(x) (((x) << PAS_MAC_CFG_MACCFG_MAXF_S) & \157 PAS_MAC_CFG_MACCFG_MAXF_M)158#define PAS_MAC_CFG_MACCFG_MINF_M 0x000000ff159#define PAS_MAC_CFG_MACCFG_MINF_S 0160 161#define PAS_MAC_CFG_TXP_FCF 0x01000000162#define PAS_MAC_CFG_TXP_FCE 0x00800000163#define PAS_MAC_CFG_TXP_FC 0x00400000164#define PAS_MAC_CFG_TXP_FPC_M 0x00300000165#define PAS_MAC_CFG_TXP_FPC_S 20166#define PAS_MAC_CFG_TXP_FPC(x) (((x) << PAS_MAC_CFG_TXP_FPC_S) & \167 PAS_MAC_CFG_TXP_FPC_M)168#define PAS_MAC_CFG_TXP_RT 0x00080000169#define PAS_MAC_CFG_TXP_BL 0x00040000170#define PAS_MAC_CFG_TXP_SL_M 0x00030000171#define PAS_MAC_CFG_TXP_SL_S 16172#define PAS_MAC_CFG_TXP_SL(x) (((x) << PAS_MAC_CFG_TXP_SL_S) & \173 PAS_MAC_CFG_TXP_SL_M)174#define PAS_MAC_CFG_TXP_COB_M 0x0000f000175#define PAS_MAC_CFG_TXP_COB_S 12176#define PAS_MAC_CFG_TXP_COB(x) (((x) << PAS_MAC_CFG_TXP_COB_S) & \177 PAS_MAC_CFG_TXP_COB_M)178#define PAS_MAC_CFG_TXP_TIFT_M 0x00000f00179#define PAS_MAC_CFG_TXP_TIFT_S 8180#define PAS_MAC_CFG_TXP_TIFT(x) (((x) << PAS_MAC_CFG_TXP_TIFT_S) & \181 PAS_MAC_CFG_TXP_TIFT_M)182#define PAS_MAC_CFG_TXP_TIFG_M 0x000000ff183#define PAS_MAC_CFG_TXP_TIFG_S 0184#define PAS_MAC_CFG_TXP_TIFG(x) (((x) << PAS_MAC_CFG_TXP_TIFG_S) & \185 PAS_MAC_CFG_TXP_TIFG_M)186 187#define PAS_MAC_RMON(r) (0x100+(r)*4)188 189#define PAS_MAC_IPC_CHNL_DCHNO_M 0x003f0000190#define PAS_MAC_IPC_CHNL_DCHNO_S 16191#define PAS_MAC_IPC_CHNL_DCHNO(x) (((x) << PAS_MAC_IPC_CHNL_DCHNO_S) & \192 PAS_MAC_IPC_CHNL_DCHNO_M)193#define PAS_MAC_IPC_CHNL_BCH_M 0x0000003f194#define PAS_MAC_IPC_CHNL_BCH_S 0195#define PAS_MAC_IPC_CHNL_BCH(x) (((x) << PAS_MAC_IPC_CHNL_BCH_S) & \196 PAS_MAC_IPC_CHNL_BCH_M)197 198 199#endif /* PASEMI_MAC_H */200