Linux Kernel  3.7.1
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
pasemi_mac.h
Go to the documentation of this file.
1 /*
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>
27 #include <linux/phy.h>
28 
29 /* 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 
35 #define MAX_LRO_DESCRIPTORS 8
36 #define MAX_CS 2
37 
38 struct pasemi_mac_txring {
39  struct pasemi_dmachan chan; /* Must be first */
40  spinlock_t lock;
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  struct timer_list clean_timer;
47 };
48 
49 struct pasemi_mac_rxring {
50  struct pasemi_dmachan chan; /* Must be first */
51  spinlock_t lock;
52  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;
57  struct pasemi_mac_buffer *ring_info;
58  struct pasemi_mac *mac; /* Needed in intr handler */
59 };
60 
61 struct 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 
70 struct pasemi_mac {
71  struct net_device *netdev;
72  struct pci_dev *pdev;
73  struct pci_dev *dma_pdev;
74  struct pci_dev *iob_pdev;
75  struct phy_device *phydev;
76  struct napi_struct napi;
77 
78  int bufsz; /* RX ring buffer size */
79  int last_cs;
80  int num_cs;
81  u32 dma_if;
82  u8 type;
83 #define MAC_TYPE_GMAC 1
84 #define MAC_TYPE_XAUI 2
85 
86  u8 mac_addr[6];
87 
88  struct net_lro_mgr lro_mgr;
89  struct net_lro_desc lro_desc[MAX_LRO_DESCRIPTORS];
90  struct timer_list rxtimer;
91  unsigned int lro_max_aggr;
92 
93  struct pasemi_mac_txring *tx;
94  struct pasemi_mac_rxring *rx;
95  struct pasemi_mac_csring *cs[MAX_CS];
96  char tx_irq_name[10]; /* "eth%d tx" */
97  char rx_irq_name[10]; /* "eth%d rx" */
98  int link;
99  int speed;
100  int duplex;
101 
102  unsigned int msg_enable;
103 };
104 
105 /* Software status descriptor (ring_info) */
106 struct pasemi_mac_buffer {
107  struct sk_buff *skb;
108  dma_addr_t dma;
109 };
110 
111 #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))
121 
122 /* PCI register offsets and formats */
123 
124 
125 /* MAC CFG register offsets */
126 enum {
127  PAS_MAC_CFG_PCFG = 0x80,
128  PAS_MAC_CFG_MACCFG = 0x84,
129  PAS_MAC_CFG_ADR0 = 0x8c,
130  PAS_MAC_CFG_ADR1 = 0x90,
131  PAS_MAC_CFG_TXP = 0x98,
132  PAS_MAC_CFG_RMON = 0x100,
133  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
166 
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 
178 #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 
204 #define PAS_MAC_RMON(r) (0x100+(r)*4)
205 
206 #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 
215 
216 #endif /* PASEMI_MAC_H */
Generated on Thu Jan 10 2013 14:04:09 for Linux Kernel by   doxygen 1.8.2