linux/drivers/net/ethernet/pasemi/pasemi_mac.h
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   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * Copyright (C) 2006 PA Semi, Inc
   4 *
   5 * Driver for the PA6T-1682M onchip 1G/10G Ethernet MACs, soft state and
   6 * hardware register layouts.
   7 */
   8
   9#ifndef PASEMI_MAC_H
  10#define PASEMI_MAC_H
  11
  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 2048
  19#define TX_RING_SIZE 4096
  20#define CS_RING_SIZE (TX_RING_SIZE*2)
  21
  22
  23#define MAX_CS  2
  24
  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   1
  70#define MAC_TYPE_XAUI   2
  71
  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             0x80000000
 121#define PAS_MAC_CFG_PCFG_CE             0x40000000
 122#define PAS_MAC_CFG_PCFG_BU             0x20000000
 123#define PAS_MAC_CFG_PCFG_TT             0x10000000
 124#define PAS_MAC_CFG_PCFG_TSR_M          0x0c000000
 125#define PAS_MAC_CFG_PCFG_TSR_10M        0x00000000
 126#define PAS_MAC_CFG_PCFG_TSR_100M       0x04000000
 127#define PAS_MAC_CFG_PCFG_TSR_1G         0x08000000
 128#define PAS_MAC_CFG_PCFG_TSR_10G        0x0c000000
 129#define PAS_MAC_CFG_PCFG_T24            0x02000000
 130#define PAS_MAC_CFG_PCFG_PR             0x01000000
 131#define PAS_MAC_CFG_PCFG_CRO_M          0x00ff0000
 132#define PAS_MAC_CFG_PCFG_CRO_S  16
 133#define PAS_MAC_CFG_PCFG_IPO_M          0x0000ff00
 134#define PAS_MAC_CFG_PCFG_IPO_S  8
 135#define PAS_MAC_CFG_PCFG_S1             0x00000080
 136#define PAS_MAC_CFG_PCFG_IO_M           0x00000060
 137#define PAS_MAC_CFG_PCFG_IO_MAC         0x00000000
 138#define PAS_MAC_CFG_PCFG_IO_OFF         0x00000020
 139#define PAS_MAC_CFG_PCFG_IO_IND_ETH     0x00000040
 140#define PAS_MAC_CFG_PCFG_IO_IND_IP      0x00000060
 141#define PAS_MAC_CFG_PCFG_LP             0x00000010
 142#define PAS_MAC_CFG_PCFG_TS             0x00000008
 143#define PAS_MAC_CFG_PCFG_HD             0x00000004
 144#define PAS_MAC_CFG_PCFG_SPD_M          0x00000003
 145#define PAS_MAC_CFG_PCFG_SPD_10M        0x00000000
 146#define PAS_MAC_CFG_PCFG_SPD_100M       0x00000001
 147#define PAS_MAC_CFG_PCFG_SPD_1G         0x00000002
 148#define PAS_MAC_CFG_PCFG_SPD_10G        0x00000003
 149
 150#define PAS_MAC_CFG_MACCFG_TXT_M        0x70000000
 151#define PAS_MAC_CFG_MACCFG_TXT_S        28
 152#define PAS_MAC_CFG_MACCFG_PRES_M       0x0f000000
 153#define PAS_MAC_CFG_MACCFG_PRES_S       24
 154#define PAS_MAC_CFG_MACCFG_MAXF_M       0x00ffff00
 155#define PAS_MAC_CFG_MACCFG_MAXF_S       8
 156#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       0x000000ff
 159#define PAS_MAC_CFG_MACCFG_MINF_S       0
 160
 161#define PAS_MAC_CFG_TXP_FCF             0x01000000
 162#define PAS_MAC_CFG_TXP_FCE             0x00800000
 163#define PAS_MAC_CFG_TXP_FC              0x00400000
 164#define PAS_MAC_CFG_TXP_FPC_M           0x00300000
 165#define PAS_MAC_CFG_TXP_FPC_S           20
 166#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              0x00080000
 169#define PAS_MAC_CFG_TXP_BL              0x00040000
 170#define PAS_MAC_CFG_TXP_SL_M            0x00030000
 171#define PAS_MAC_CFG_TXP_SL_S            16
 172#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           0x0000f000
 175#define PAS_MAC_CFG_TXP_COB_S           12
 176#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          0x00000f00
 179#define PAS_MAC_CFG_TXP_TIFT_S          8
 180#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          0x000000ff
 183#define PAS_MAC_CFG_TXP_TIFG_S          0
 184#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        0x003f0000
 190#define PAS_MAC_IPC_CHNL_DCHNO_S        16
 191#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          0x0000003f
 194#define PAS_MAC_IPC_CHNL_BCH_S          0
 195#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