blob: d985080bbd5d74d39c4fa3a53a5037946b33f45c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
|
/*
* Dave DNET Ethernet Controller driver
*
* Copyright (C) 2008 Dave S.r.l. <www.dave.eu>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef _DNET_H
#define _DNET_H
#define DRV_NAME "dnet"
#define DRV_VERSION "0.9.1"
#define PFX DRV_NAME ": "
/* Register access macros */
#define dnet_writel(port, value, reg) \
writel((value), (port)->regs + DNET_##reg)
#define dnet_readl(port, reg) readl((port)->regs + DNET_##reg)
/* ALL DNET FIFO REGISTERS */
#define DNET_RX_LEN_FIFO 0x000 /* RX_LEN_FIFO */
#define DNET_RX_DATA_FIFO 0x004 /* RX_DATA_FIFO */
#define DNET_TX_LEN_FIFO 0x008 /* TX_LEN_FIFO */
#define DNET_TX_DATA_FIFO 0x00C /* TX_DATA_FIFO */
/* ALL DNET CONTROL/STATUS REGISTERS OFFSETS */
#define DNET_VERCAPS 0x100 /* VERCAPS */
#define DNET_INTR_SRC 0x104 /* INTR_SRC */
#define DNET_INTR_ENB 0x108 /* INTR_ENB */
#define DNET_RX_STATUS 0x10C /* RX_STATUS */
#define DNET_TX_STATUS 0x110 /* TX_STATUS */
#define DNET_RX_FRAMES_CNT 0x114 /* RX_FRAMES_CNT */
#define DNET_TX_FRAMES_CNT 0x118 /* TX_FRAMES_CNT */
#define DNET_RX_FIFO_TH 0x11C /* RX_FIFO_TH */
#define DNET_TX_FIFO_TH 0x120 /* TX_FIFO_TH */
#define DNET_SYS_CTL 0x124 /* SYS_CTL */
#define DNET_PAUSE_TMR 0x128 /* PAUSE_TMR */
#define DNET_RX_FIFO_WCNT 0x12C /* RX_FIFO_WCNT */
#define DNET_TX_FIFO_WCNT 0x130 /* TX_FIFO_WCNT */
/* ALL DNET MAC REGISTERS */
#define DNET_MACREG_DATA 0x200 /* Mac-Reg Data */
#define DNET_MACREG_ADDR 0x204 /* Mac-Reg Addr */
/* ALL DNET RX STATISTICS COUNTERS */
#define DNET_RX_PKT_IGNR_CNT 0x300
#define DNET_RX_LEN_CHK_ERR_CNT 0x304
#define DNET_RX_LNG_FRM_CNT 0x308
#define DNET_RX_SHRT_FRM_CNT 0x30C
#define DNET_RX_IPG_VIOL_CNT 0x310
#define DNET_RX_CRC_ERR_CNT 0x314
#define DNET_RX_OK_PKT_CNT 0x318
#define DNET_RX_CTL_FRM_CNT 0x31C
#define DNET_RX_PAUSE_FRM_CNT 0x320
#define DNET_RX_MULTICAST_CNT 0x324
#define DNET_RX_BROADCAST_CNT 0x328
#define DNET_RX_VLAN_TAG_CNT 0x32C
#define DNET_RX_PRE_SHRINK_CNT 0x330
#define DNET_RX_DRIB_NIB_CNT 0x334
#define DNET_RX_UNSUP_OPCD_CNT 0x338
#define DNET_RX_BYTE_CNT 0x33C
/* DNET TX STATISTICS COUNTERS */
#define DNET_TX_UNICAST_CNT 0x400
#define DNET_TX_PAUSE_FRM_CNT 0x404
#define DNET_TX_MULTICAST_CNT 0x408
#define DNET_TX_BRDCAST_CNT 0x40C
#define DNET_TX_VLAN_TAG_CNT 0x410
#define DNET_TX_BAD_FCS_CNT 0x414
#define DNET_TX_JUMBO_CNT 0x418
#define DNET_TX_BYTE_CNT 0x41C
/* SOME INTERNAL MAC-CORE REGISTER */
#define DNET_INTERNAL_MODE_REG 0x0
#define DNET_INTERNAL_RXTX_CONTROL_REG 0x2
#define DNET_INTERNAL_MAX_PKT_SIZE_REG 0x4
#define DNET_INTERNAL_IGP_REG 0x8
#define DNET_INTERNAL_MAC_ADDR_0_REG 0xa
#define DNET_INTERNAL_MAC_ADDR_1_REG 0xc
#define DNET_INTERNAL_MAC_ADDR_2_REG 0xe
#define DNET_INTERNAL_TX_RX_STS_REG 0x12
#define DNET_INTERNAL_GMII_MNG_CTL_REG 0x14
#define DNET_INTERNAL_GMII_MNG_DAT_REG 0x16
#define DNET_INTERNAL_GMII_MNG_CMD_FIN (1 << 14)
#define DNET_INTERNAL_WRITE (1 << 31)
/* MAC-CORE REGISTER FIELDS */
/* MAC-CORE MODE REGISTER FIELDS */
#define DNET_INTERNAL_MODE_GBITEN (1 << 0)
#define DNET_INTERNAL_MODE_FCEN (1 << 1)
#define DNET_INTERNAL_MODE_RXEN (1 << 2)
#define DNET_INTERNAL_MODE_TXEN (1 << 3)
/* MAC-CORE RXTX CONTROL REGISTER FIELDS */
#define DNET_INTERNAL_RXTX_CONTROL_RXSHORTFRAME (1 << 8)
#define DNET_INTERNAL_RXTX_CONTROL_RXBROADCAST (1 << 7)
#define DNET_INTERNAL_RXTX_CONTROL_RXMULTICAST (1 << 4)
#define DNET_INTERNAL_RXTX_CONTROL_RXPAUSE (1 << 3)
#define DNET_INTERNAL_RXTX_CONTROL_DISTXFCS (1 << 2)
#define DNET_INTERNAL_RXTX_CONTROL_DISCFXFCS (1 << 1)
#define DNET_INTERNAL_RXTX_CONTROL_ENPROMISC (1 << 0)
#define DNET_INTERNAL_RXTX_CONTROL_DROPCONTROL (1 << 6)
#define DNET_INTERNAL_RXTX_CONTROL_ENABLEHALFDUP (1 << 5)
/* SYSTEM CONTROL REGISTER FIELDS */
#define DNET_SYS_CTL_IGNORENEXTPKT (1 << 0)
#define DNET_SYS_CTL_SENDPAUSE (1 << 2)
#define DNET_SYS_CTL_RXFIFOFLUSH (1 << 3)
#define DNET_SYS_CTL_TXFIFOFLUSH (1 << 4)
/* TX STATUS REGISTER FIELDS */
#define DNET_TX_STATUS_FIFO_ALMOST_EMPTY (1 << 2)
#define DNET_TX_STATUS_FIFO_ALMOST_FULL (1 << 1)
/* INTERRUPT SOURCE REGISTER FIELDS */
#define DNET_INTR_SRC_TX_PKTSENT (1 << 0)
#define DNET_INTR_SRC_TX_FIFOAF (1 << 1)
#define DNET_INTR_SRC_TX_FIFOAE (1 << 2)
#define DNET_INTR_SRC_TX_DISCFRM (1 << 3)
#define DNET_INTR_SRC_TX_FIFOFULL (1 << 4)
#define DNET_INTR_SRC_RX_CMDFIFOAF (1 << 8)
#define DNET_INTR_SRC_RX_CMDFIFOFF (1 << 9)
#define DNET_INTR_SRC_RX_DATAFIFOFF (1 << 10)
#define DNET_INTR_SRC_TX_SUMMARY (1 << 16)
#define DNET_INTR_SRC_RX_SUMMARY (1 << 17)
#define DNET_INTR_SRC_PHY (1 << 19)
/* INTERRUPT ENABLE REGISTER FIELDS */
#define DNET_INTR_ENB_TX_PKTSENT (1 << 0)
#define DNET_INTR_ENB_TX_FIFOAF (1 << 1)
#define DNET_INTR_ENB_TX_FIFOAE (1 << 2)
#define DNET_INTR_ENB_TX_DISCFRM (1 << 3)
#define DNET_INTR_ENB_TX_FIFOFULL (1 << 4)
#define DNET_INTR_ENB_RX_PKTRDY (1 << 8)
#define DNET_INTR_ENB_RX_FIFOAF (1 << 9)
#define DNET_INTR_ENB_RX_FIFOERR (1 << 10)
#define DNET_INTR_ENB_RX_ERROR (1 << 11)
#define DNET_INTR_ENB_RX_FIFOFULL (1 << 12)
#define DNET_INTR_ENB_RX_FIFOAE (1 << 13)
#define DNET_INTR_ENB_TX_SUMMARY (1 << 16)
#define DNET_INTR_ENB_RX_SUMMARY (1 << 17)
#define DNET_INTR_ENB_GLOBAL_ENABLE (1 << 18)
/* default values:
* almost empty = less than one full sized ethernet frame (no jumbo) inside
* the fifo almost full = can write less than one full sized ethernet frame
* (no jumbo) inside the fifo
*/
#define DNET_CFG_TX_FIFO_FULL_THRES 25
#define DNET_CFG_RX_FIFO_FULL_THRES 20
/*
* Capabilities. Used by the driver to know the capabilities that the ethernet
* controller inside the FPGA have.
*/
#define DNET_HAS_MDIO (1 << 0)
#define DNET_HAS_IRQ (1 << 1)
#define DNET_HAS_GIGABIT (1 << 2)
#define DNET_HAS_DMA (1 << 3)
#define DNET_HAS_MII (1 << 4) /* or GMII */
#define DNET_HAS_RMII (1 << 5) /* or RGMII */
#define DNET_CAPS_MASK 0xFFFF
#define DNET_FIFO_SIZE 1024 /* 1K x 32 bit */
#define DNET_FIFO_TX_DATA_AF_TH (DNET_FIFO_SIZE - 384) /* 384 = 1536 / 4 */
#define DNET_FIFO_TX_DATA_AE_TH 384
#define DNET_FIFO_RX_CMD_AF_TH (1 << 16) /* just one frame inside the FIFO */
/*
* Hardware-collected statistics.
*/
struct dnet_stats {
u32 rx_pkt_ignr;
u32 rx_len_chk_err;
u32 rx_lng_frm;
u32 rx_shrt_frm;
u32 rx_ipg_viol;
u32 rx_crc_err;
u32 rx_ok_pkt;
u32 rx_ctl_frm;
u32 rx_pause_frm;
u32 rx_multicast;
u32 rx_broadcast;
u32 rx_vlan_tag;
u32 rx_pre_shrink;
u32 rx_drib_nib;
u32 rx_unsup_opcd;
u32 rx_byte;
u32 tx_unicast;
u32 tx_pause_frm;
u32 tx_multicast;
u32 tx_brdcast;
u32 tx_vlan_tag;
u32 tx_bad_fcs;
u32 tx_jumbo;
u32 tx_byte;
};
struct dnet {
void __iomem *regs;
spinlock_t lock;
struct platform_device *pdev;
struct net_device *dev;
struct dnet_stats hw_stats;
unsigned int capabilities; /* read from FPGA */
struct napi_struct napi;
/* PHY stuff */
struct mii_bus *mii_bus;
unsigned int link;
unsigned int speed;
unsigned int duplex;
};
#endif /* _DNET_H */
|
