blob: e2f4efa8ad46a5d79384a2afd6e441a1552f02a0 [file] [log] [blame]
Olof Johanssonf5cd7872007-01-31 21:43:54 -06001/*
2 * Copyright (C) 2006 PA Semi, Inc
3 *
4 * Driver for the PA6T-1682M onchip 1G/10G Ethernet MACs, soft state and
5 * hardware register layouts.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21#ifndef PASEMI_MAC_H
22#define PASEMI_MAC_H
23
24#include <linux/ethtool.h>
25#include <linux/netdevice.h>
26#include <linux/spinlock.h>
Olof Johanssonbb6e9592007-05-08 00:47:54 -050027#include <linux/phy.h>
Olof Johanssonf5cd7872007-01-31 21:43:54 -060028
Olof Johanssone37c7722008-02-20 20:57:59 -060029/* Must be a power of two */
30#define RX_RING_SIZE 2048
31#define TX_RING_SIZE 4096
32#define CS_RING_SIZE (TX_RING_SIZE*2)
33
34
Olof Johansson28ae79f2007-11-28 20:57:27 -060035#define MAX_LRO_DESCRIPTORS 8
Olof Johansson8d636d82008-03-05 16:34:16 -060036#define MAX_CS 2
Olof Johansson28ae79f2007-11-28 20:57:27 -060037
Olof Johanssonf5cd7872007-01-31 21:43:54 -060038struct pasemi_mac_txring {
Olof Johansson34c20622007-11-28 20:56:32 -060039 struct pasemi_dmachan chan; /* Must be first */
Olof Johanssonf5cd7872007-01-31 21:43:54 -060040 spinlock_t lock;
Olof Johanssonf5cd7872007-01-31 21:43:54 -060041 unsigned int size;
Olof Johansson021fa222007-08-22 09:13:11 -050042 unsigned int next_to_fill;
Olof Johanssonf5cd7872007-01-31 21:43:54 -060043 unsigned int next_to_clean;
Olof Johanssonfc9e4d22007-10-02 16:25:53 -050044 struct pasemi_mac_buffer *ring_info;
Olof Johansson72b05b92007-11-28 20:54:28 -060045 struct pasemi_mac *mac; /* Needed in intr handler */
Olof Johansson61cec3b2007-11-28 20:56:54 -060046 struct timer_list clean_timer;
Olof Johanssonf5cd7872007-01-31 21:43:54 -060047};
48
49struct pasemi_mac_rxring {
Olof Johansson34c20622007-11-28 20:56:32 -060050 struct pasemi_dmachan chan; /* Must be first */
Olof Johanssonf5cd7872007-01-31 21:43:54 -060051 spinlock_t lock;
Olof Johanssonf5cd7872007-01-31 21:43:54 -060052 u64 *buffers; /* RX interface buffer ring */
53 dma_addr_t buf_dma;
54 unsigned int size;
55 unsigned int next_to_fill;
56 unsigned int next_to_clean;
Olof Johanssonfc9e4d22007-10-02 16:25:53 -050057 struct pasemi_mac_buffer *ring_info;
Olof Johansson72b05b92007-11-28 20:54:28 -060058 struct pasemi_mac *mac; /* Needed in intr handler */
Olof Johanssonf5cd7872007-01-31 21:43:54 -060059};
60
Olof Johansson8d636d82008-03-05 16:34:16 -060061struct pasemi_mac_csring {
62 struct pasemi_dmachan chan;
63 unsigned int size;
64 unsigned int next_to_fill;
65 int events[2];
66 int last_event;
67 int fun;
68};
69
Olof Johanssonf5cd7872007-01-31 21:43:54 -060070struct pasemi_mac {
71 struct net_device *netdev;
72 struct pci_dev *pdev;
73 struct pci_dev *dma_pdev;
74 struct pci_dev *iob_pdev;
Olof Johanssonbb6e9592007-05-08 00:47:54 -050075 struct phy_device *phydev;
Stephen Hemmingerbea33482007-10-03 16:41:36 -070076 struct napi_struct napi;
Olof Johanssonf5cd7872007-01-31 21:43:54 -060077
Olof Johanssonef1ea0b2008-01-23 13:56:47 -060078 int bufsz; /* RX ring buffer size */
Olof Johansson8d636d82008-03-05 16:34:16 -060079 int last_cs;
80 int num_cs;
81 u32 dma_if;
Olof Johanssonf5cd7872007-01-31 21:43:54 -060082 u8 type;
83#define MAC_TYPE_GMAC 1
84#define MAC_TYPE_XAUI 2
Olof Johanssonf5cd7872007-01-31 21:43:54 -060085
86 u8 mac_addr[6];
87
Olof Johansson28ae79f2007-11-28 20:57:27 -060088 struct net_lro_mgr lro_mgr;
89 struct net_lro_desc lro_desc[MAX_LRO_DESCRIPTORS];
Olof Johanssonf5cd7872007-01-31 21:43:54 -060090 struct timer_list rxtimer;
Olof Johansson28ae79f2007-11-28 20:57:27 -060091 unsigned int lro_max_aggr;
Olof Johanssonf5cd7872007-01-31 21:43:54 -060092
93 struct pasemi_mac_txring *tx;
94 struct pasemi_mac_rxring *rx;
Olof Johansson8d636d82008-03-05 16:34:16 -060095 struct pasemi_mac_csring *cs[MAX_CS];
Olof Johansson72b05b92007-11-28 20:54:28 -060096 char tx_irq_name[10]; /* "eth%d tx" */
97 char rx_irq_name[10]; /* "eth%d rx" */
Olof Johanssonbb6e9592007-05-08 00:47:54 -050098 int link;
99 int speed;
100 int duplex;
Olof Johanssonceb51362007-05-08 00:47:49 -0500101
102 unsigned int msg_enable;
Olof Johanssonf5cd7872007-01-31 21:43:54 -0600103};
104
Olof Johanssonfc9e4d22007-10-02 16:25:53 -0500105/* Software status descriptor (ring_info) */
Olof Johanssonf5cd7872007-01-31 21:43:54 -0600106struct pasemi_mac_buffer {
107 struct sk_buff *skb;
108 dma_addr_t dma;
109};
110
Olof Johanssone37c7722008-02-20 20:57:59 -0600111#define TX_DESC(tx, num) ((tx)->chan.ring_virt[(num) & (TX_RING_SIZE-1)])
112#define TX_DESC_INFO(tx, num) ((tx)->ring_info[(num) & (TX_RING_SIZE-1)])
113#define RX_DESC(rx, num) ((rx)->chan.ring_virt[(num) & (RX_RING_SIZE-1)])
114#define RX_DESC_INFO(rx, num) ((rx)->ring_info[(num) & (RX_RING_SIZE-1)])
115#define RX_BUFF(rx, num) ((rx)->buffers[(num) & (RX_RING_SIZE-1)])
116#define CS_DESC(cs, num) ((cs)->chan.ring_virt[(num) & (CS_RING_SIZE-1)])
117
118#define RING_USED(ring) (((ring)->next_to_fill - (ring)->next_to_clean) \
119 & ((ring)->size - 1))
120#define RING_AVAIL(ring) ((ring->size) - RING_USED(ring))
Olof Johanssonf5cd7872007-01-31 21:43:54 -0600121
Olof Johansson40afa532007-11-28 20:56:04 -0600122/* PCI register offsets and formats */
123
Olof Johanssonf5cd7872007-01-31 21:43:54 -0600124
Olof Johanssonf5cd7872007-01-31 21:43:54 -0600125/* MAC CFG register offsets */
Olof Johanssonf5cd7872007-01-31 21:43:54 -0600126enum {
127 PAS_MAC_CFG_PCFG = 0x80,
Olof Johanssonef1ea0b2008-01-23 13:56:47 -0600128 PAS_MAC_CFG_MACCFG = 0x84,
Olof Johansson5cea73b2008-01-23 13:56:19 -0600129 PAS_MAC_CFG_ADR0 = 0x8c,
130 PAS_MAC_CFG_ADR1 = 0x90,
Olof Johanssonf5cd7872007-01-31 21:43:54 -0600131 PAS_MAC_CFG_TXP = 0x98,
Olof Johanssone37c7722008-02-20 20:57:59 -0600132 PAS_MAC_CFG_RMON = 0x100,
Olof Johanssonf5cd7872007-01-31 21:43:54 -0600133 PAS_MAC_IPC_CHNL = 0x208,
134};
135
136/* MAC CFG register fields */
137#define PAS_MAC_CFG_PCFG_PE 0x80000000
138#define PAS_MAC_CFG_PCFG_CE 0x40000000
139#define PAS_MAC_CFG_PCFG_BU 0x20000000
140#define PAS_MAC_CFG_PCFG_TT 0x10000000
141#define PAS_MAC_CFG_PCFG_TSR_M 0x0c000000
142#define PAS_MAC_CFG_PCFG_TSR_10M 0x00000000
143#define PAS_MAC_CFG_PCFG_TSR_100M 0x04000000
144#define PAS_MAC_CFG_PCFG_TSR_1G 0x08000000
145#define PAS_MAC_CFG_PCFG_TSR_10G 0x0c000000
146#define PAS_MAC_CFG_PCFG_T24 0x02000000
147#define PAS_MAC_CFG_PCFG_PR 0x01000000
148#define PAS_MAC_CFG_PCFG_CRO_M 0x00ff0000
149#define PAS_MAC_CFG_PCFG_CRO_S 16
150#define PAS_MAC_CFG_PCFG_IPO_M 0x0000ff00
151#define PAS_MAC_CFG_PCFG_IPO_S 8
152#define PAS_MAC_CFG_PCFG_S1 0x00000080
153#define PAS_MAC_CFG_PCFG_IO_M 0x00000060
154#define PAS_MAC_CFG_PCFG_IO_MAC 0x00000000
155#define PAS_MAC_CFG_PCFG_IO_OFF 0x00000020
156#define PAS_MAC_CFG_PCFG_IO_IND_ETH 0x00000040
157#define PAS_MAC_CFG_PCFG_IO_IND_IP 0x00000060
158#define PAS_MAC_CFG_PCFG_LP 0x00000010
159#define PAS_MAC_CFG_PCFG_TS 0x00000008
160#define PAS_MAC_CFG_PCFG_HD 0x00000004
161#define PAS_MAC_CFG_PCFG_SPD_M 0x00000003
162#define PAS_MAC_CFG_PCFG_SPD_10M 0x00000000
163#define PAS_MAC_CFG_PCFG_SPD_100M 0x00000001
164#define PAS_MAC_CFG_PCFG_SPD_1G 0x00000002
165#define PAS_MAC_CFG_PCFG_SPD_10G 0x00000003
Olof Johanssonef1ea0b2008-01-23 13:56:47 -0600166
167#define PAS_MAC_CFG_MACCFG_TXT_M 0x70000000
168#define PAS_MAC_CFG_MACCFG_TXT_S 28
169#define PAS_MAC_CFG_MACCFG_PRES_M 0x0f000000
170#define PAS_MAC_CFG_MACCFG_PRES_S 24
171#define PAS_MAC_CFG_MACCFG_MAXF_M 0x00ffff00
172#define PAS_MAC_CFG_MACCFG_MAXF_S 8
173#define PAS_MAC_CFG_MACCFG_MAXF(x) (((x) << PAS_MAC_CFG_MACCFG_MAXF_S) & \
174 PAS_MAC_CFG_MACCFG_MAXF_M)
175#define PAS_MAC_CFG_MACCFG_MINF_M 0x000000ff
176#define PAS_MAC_CFG_MACCFG_MINF_S 0
177
Olof Johanssonf5cd7872007-01-31 21:43:54 -0600178#define PAS_MAC_CFG_TXP_FCF 0x01000000
179#define PAS_MAC_CFG_TXP_FCE 0x00800000
180#define PAS_MAC_CFG_TXP_FC 0x00400000
181#define PAS_MAC_CFG_TXP_FPC_M 0x00300000
182#define PAS_MAC_CFG_TXP_FPC_S 20
183#define PAS_MAC_CFG_TXP_FPC(x) (((x) << PAS_MAC_CFG_TXP_FPC_S) & \
184 PAS_MAC_CFG_TXP_FPC_M)
185#define PAS_MAC_CFG_TXP_RT 0x00080000
186#define PAS_MAC_CFG_TXP_BL 0x00040000
187#define PAS_MAC_CFG_TXP_SL_M 0x00030000
188#define PAS_MAC_CFG_TXP_SL_S 16
189#define PAS_MAC_CFG_TXP_SL(x) (((x) << PAS_MAC_CFG_TXP_SL_S) & \
190 PAS_MAC_CFG_TXP_SL_M)
191#define PAS_MAC_CFG_TXP_COB_M 0x0000f000
192#define PAS_MAC_CFG_TXP_COB_S 12
193#define PAS_MAC_CFG_TXP_COB(x) (((x) << PAS_MAC_CFG_TXP_COB_S) & \
194 PAS_MAC_CFG_TXP_COB_M)
195#define PAS_MAC_CFG_TXP_TIFT_M 0x00000f00
196#define PAS_MAC_CFG_TXP_TIFT_S 8
197#define PAS_MAC_CFG_TXP_TIFT(x) (((x) << PAS_MAC_CFG_TXP_TIFT_S) & \
198 PAS_MAC_CFG_TXP_TIFT_M)
199#define PAS_MAC_CFG_TXP_TIFG_M 0x000000ff
200#define PAS_MAC_CFG_TXP_TIFG_S 0
201#define PAS_MAC_CFG_TXP_TIFG(x) (((x) << PAS_MAC_CFG_TXP_TIFG_S) & \
202 PAS_MAC_CFG_TXP_TIFG_M)
203
Olof Johanssone37c7722008-02-20 20:57:59 -0600204#define PAS_MAC_RMON(r) (0x100+(r)*4)
205
Olof Johanssonf5cd7872007-01-31 21:43:54 -0600206#define PAS_MAC_IPC_CHNL_DCHNO_M 0x003f0000
207#define PAS_MAC_IPC_CHNL_DCHNO_S 16
208#define PAS_MAC_IPC_CHNL_DCHNO(x) (((x) << PAS_MAC_IPC_CHNL_DCHNO_S) & \
209 PAS_MAC_IPC_CHNL_DCHNO_M)
210#define PAS_MAC_IPC_CHNL_BCH_M 0x0000003f
211#define PAS_MAC_IPC_CHNL_BCH_S 0
212#define PAS_MAC_IPC_CHNL_BCH(x) (((x) << PAS_MAC_IPC_CHNL_BCH_S) & \
213 PAS_MAC_IPC_CHNL_BCH_M)
214
Olof Johanssone37c7722008-02-20 20:57:59 -0600215
Olof Johanssonf5cd7872007-01-31 21:43:54 -0600216#endif /* PASEMI_MAC_H */