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
|
/*******************************************************************************
Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at your option)
any later version.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59
Temple Place - Suite 330, Boston, MA 02111-1307, USA.
The full GNU General Public License is included in this distribution in the
file called LICENSE.
Contact Information:
Linux NICS <linux.nics@intel.com>
Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*******************************************************************************/
#ifndef _IXGB_H_
#define _IXGB_H_
#include <linux/stddef.h>
#include <linux/config.h>
#include <linux/module.h>
#include <linux/types.h>
#include <asm/byteorder.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/errno.h>
#include <linux/ioport.h>
#include <linux/pci.h>
#include <linux/kernel.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/delay.h>
#include <linux/timer.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/interrupt.h>
#include <linux/string.h>
#include <linux/pagemap.h>
#include <linux/dma-mapping.h>
#include <linux/bitops.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <linux/capability.h>
#include <linux/in.h>
#include <linux/ip.h>
#include <linux/tcp.h>
#include <linux/udp.h>
#include <net/pkt_sched.h>
#include <linux/list.h>
#include <linux/reboot.h>
#ifdef NETIF_F_TSO
#include <net/checksum.h>
#endif
#include <linux/ethtool.h>
#include <linux/if_vlan.h>
#define BAR_0 0
#define BAR_1 1
#define BAR_5 5
struct ixgb_adapter;
#include "ixgb_hw.h"
#include "ixgb_ee.h"
#include "ixgb_ids.h"
#ifdef _DEBUG_DRIVER_
#define IXGB_DBG(args...) printk(KERN_DEBUG "ixgb: " args)
#else
#define IXGB_DBG(args...)
#endif
#define PFX "ixgb: "
#define DPRINTK(nlevel, klevel, fmt, args...) \
(void)((NETIF_MSG_##nlevel & adapter->msg_enable) && \
printk(KERN_##klevel PFX "%s: %s: " fmt, adapter->netdev->name, \
__FUNCTION__ , ## args))
/* TX/RX descriptor defines */
#define DEFAULT_TXD 256
#define MAX_TXD 4096
#define MIN_TXD 64
/* hardware cannot reliably support more than 512 descriptors owned by
* hardware descrioptor cache otherwise an unreliable ring under heavy
* recieve load may result */
/* #define DEFAULT_RXD 1024 */
/* #define MAX_RXD 4096 */
#define DEFAULT_RXD 512
#define MAX_RXD 512
#define MIN_RXD 64
/* Supported Rx Buffer Sizes */
#define IXGB_RXBUFFER_2048 2048
#define IXGB_RXBUFFER_4096 4096
#define IXGB_RXBUFFER_8192 8192
#define IXGB_RXBUFFER_16384 16384
/* How many Tx Descriptors do we need to call netif_wake_queue? */
#define IXGB_TX_QUEUE_WAKE 16
/* How many Rx Buffers do we bundle into one write to the hardware ? */
#define IXGB_RX_BUFFER_WRITE 4 /* Must be power of 2 */
/* only works for sizes that are powers of 2 */
#define IXGB_ROUNDUP(i, size) ((i) = (((i) + (size) - 1) & ~((size) - 1)))
/* wrapper around a pointer to a socket buffer,
* so a DMA handle can be stored along with the buffer */
struct ixgb_buffer {
struct sk_buff *skb;
dma_addr_t dma;
unsigned long time_stamp;
uint16_t length;
uint16_t next_to_watch;
};
struct ixgb_desc_ring {
/* pointer to the descriptor ring memory */
void *desc;
/* physical address of the descriptor ring */
dma_addr_t dma;
/* length of descriptor ring in bytes */
unsigned int size;
/* number of descriptors in the ring */
unsigned int count;
/* next descriptor to associate a buffer with */
unsigned int next_to_use;
/* next descriptor to check for DD status bit */
unsigned int next_to_clean;
/* array of buffer information structs */
struct ixgb_buffer *buffer_info;
};
#define IXGB_DESC_UNUSED(R) \
((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \
(R)->next_to_clean - (R)->next_to_use - 1)
#define IXGB_GET_DESC(R, i, type) (&(((struct type *)((R).desc))[i]))
#define IXGB_RX_DESC(R, i) IXGB_GET_DESC(R, i, ixgb_rx_desc)
#define IXGB_TX_DESC(R, i) IXGB_GET_DESC(R, i, ixgb_tx_desc)
#define IXGB_CONTEXT_DESC(R, i) IXGB_GET_DESC(R, i, ixgb_context_desc)
/* board specific private data structure */
struct ixgb_adapter {
struct timer_list watchdog_timer;
struct vlan_group *vlgrp;
uint32_t bd_number;
uint32_t rx_buffer_len;
uint32_t part_num;
uint16_t link_speed;
uint16_t link_duplex;
spinlock_t tx_lock;
atomic_t irq_sem;
struct work_struct tx_timeout_task;
struct timer_list blink_timer;
unsigned long led_status;
/* TX */
struct ixgb_desc_ring tx_ring;
unsigned long timeo_start;
uint32_t tx_cmd_type;
uint64_t hw_csum_tx_good;
uint64_t hw_csum_tx_error;
uint32_t tx_int_delay;
boolean_t tx_int_delay_enable;
boolean_t detect_tx_hung;
/* RX */
struct ixgb_desc_ring rx_ring;
uint64_t hw_csum_rx_error;
uint64_t hw_csum_rx_good;
uint32_t rx_int_delay;
boolean_t rx_csum;
/* OS defined structs */
struct net_device *netdev;
struct pci_dev *pdev;
struct net_device_stats net_stats;
/* structs defined in ixgb_hw.h */
struct ixgb_hw hw;
u16 msg_enable;
struct ixgb_hw_stats stats;
#ifdef CONFIG_PCI_MSI
boolean_t have_msi;
#endif
};
#endif /* _IXGB_H_ */
|
