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1da177e4 LT |
1 | /******************************************************************************* |
2 | ||
0abb6eb1 | 3 | Intel PRO/10GbE Linux driver |
f731a9ef | 4 | Copyright(c) 1999 - 2008 Intel Corporation. |
0abb6eb1 AK |
5 | |
6 | This program is free software; you can redistribute it and/or modify it | |
7 | under the terms and conditions of the GNU General Public License, | |
8 | version 2, as published by the Free Software Foundation. | |
9 | ||
10 | This program is distributed in the hope it will be useful, but WITHOUT | |
11 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
12 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
1da177e4 | 13 | more details. |
0abb6eb1 | 14 | |
1da177e4 | 15 | You should have received a copy of the GNU General Public License along with |
0abb6eb1 AK |
16 | this program; if not, write to the Free Software Foundation, Inc., |
17 | 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. | |
18 | ||
19 | The full GNU General Public License is included in this distribution in | |
20 | the file called "COPYING". | |
21 | ||
1da177e4 LT |
22 | Contact Information: |
23 | Linux NICS <linux.nics@intel.com> | |
0abb6eb1 | 24 | e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> |
1da177e4 LT |
25 | Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
26 | ||
27 | *******************************************************************************/ | |
28 | ||
29 | #ifndef _IXGB_H_ | |
30 | #define _IXGB_H_ | |
31 | ||
32 | #include <linux/stddef.h> | |
1da177e4 LT |
33 | #include <linux/module.h> |
34 | #include <linux/types.h> | |
35 | #include <asm/byteorder.h> | |
36 | #include <linux/init.h> | |
37 | #include <linux/mm.h> | |
38 | #include <linux/errno.h> | |
39 | #include <linux/ioport.h> | |
40 | #include <linux/pci.h> | |
41 | #include <linux/kernel.h> | |
42 | #include <linux/netdevice.h> | |
43 | #include <linux/etherdevice.h> | |
44 | #include <linux/skbuff.h> | |
45 | #include <linux/delay.h> | |
46 | #include <linux/timer.h> | |
47 | #include <linux/slab.h> | |
48 | #include <linux/vmalloc.h> | |
49 | #include <linux/interrupt.h> | |
50 | #include <linux/string.h> | |
51 | #include <linux/pagemap.h> | |
52 | #include <linux/dma-mapping.h> | |
53 | #include <linux/bitops.h> | |
54 | #include <asm/io.h> | |
55 | #include <asm/irq.h> | |
56 | #include <linux/capability.h> | |
57 | #include <linux/in.h> | |
58 | #include <linux/ip.h> | |
59 | #include <linux/tcp.h> | |
60 | #include <linux/udp.h> | |
61 | #include <net/pkt_sched.h> | |
62 | #include <linux/list.h> | |
63 | #include <linux/reboot.h> | |
1da177e4 | 64 | #include <net/checksum.h> |
1da177e4 LT |
65 | |
66 | #include <linux/ethtool.h> | |
67 | #include <linux/if_vlan.h> | |
68 | ||
69 | #define BAR_0 0 | |
70 | #define BAR_1 1 | |
71 | #define BAR_5 5 | |
72 | ||
73 | struct ixgb_adapter; | |
74 | #include "ixgb_hw.h" | |
75 | #include "ixgb_ee.h" | |
76 | #include "ixgb_ids.h" | |
77 | ||
6909c66d JP |
78 | #define PFX "ixgb: " |
79 | ||
1da177e4 | 80 | #ifdef _DEBUG_DRIVER_ |
d328bc83 | 81 | #define IXGB_DBG(fmt, args...) printk(KERN_DEBUG PFX fmt, ##args) |
1da177e4 | 82 | #else |
d328bc83 JP |
83 | #define IXGB_DBG(fmt, args...) \ |
84 | do { \ | |
85 | if (0) \ | |
86 | printk(KERN_DEBUG PFX fmt, ##args); \ | |
87 | } while (0) | |
1da177e4 LT |
88 | #endif |
89 | ||
1da177e4 | 90 | /* TX/RX descriptor defines */ |
2c21fc6e JB |
91 | #define DEFAULT_TXD 256 |
92 | #define MAX_TXD 4096 | |
93 | #define MIN_TXD 64 | |
1da177e4 LT |
94 | |
95 | /* hardware cannot reliably support more than 512 descriptors owned by | |
52035bdb JB |
96 | * hardware descriptor cache otherwise an unreliable ring under heavy |
97 | * receive load may result */ | |
2c21fc6e JB |
98 | #define DEFAULT_RXD 512 |
99 | #define MAX_RXD 512 | |
100 | #define MIN_RXD 64 | |
1da177e4 LT |
101 | |
102 | /* Supported Rx Buffer Sizes */ | |
103 | #define IXGB_RXBUFFER_2048 2048 | |
104 | #define IXGB_RXBUFFER_4096 4096 | |
105 | #define IXGB_RXBUFFER_8192 8192 | |
106 | #define IXGB_RXBUFFER_16384 16384 | |
107 | ||
1da177e4 | 108 | /* How many Rx Buffers do we bundle into one write to the hardware ? */ |
a4d3c540 | 109 | #define IXGB_RX_BUFFER_WRITE 8 /* Must be power of 2 */ |
1da177e4 | 110 | |
1da177e4 LT |
111 | /* wrapper around a pointer to a socket buffer, |
112 | * so a DMA handle can be stored along with the buffer */ | |
113 | struct ixgb_buffer { | |
114 | struct sk_buff *skb; | |
b40a1f06 | 115 | dma_addr_t dma; |
1da177e4 | 116 | unsigned long time_stamp; |
222441a6 JP |
117 | u16 length; |
118 | u16 next_to_watch; | |
adeaa908 | 119 | u16 mapped_as_page; |
1da177e4 LT |
120 | }; |
121 | ||
122 | struct ixgb_desc_ring { | |
123 | /* pointer to the descriptor ring memory */ | |
124 | void *desc; | |
125 | /* physical address of the descriptor ring */ | |
126 | dma_addr_t dma; | |
127 | /* length of descriptor ring in bytes */ | |
128 | unsigned int size; | |
129 | /* number of descriptors in the ring */ | |
130 | unsigned int count; | |
131 | /* next descriptor to associate a buffer with */ | |
132 | unsigned int next_to_use; | |
133 | /* next descriptor to check for DD status bit */ | |
134 | unsigned int next_to_clean; | |
135 | /* array of buffer information structs */ | |
136 | struct ixgb_buffer *buffer_info; | |
137 | }; | |
138 | ||
139 | #define IXGB_DESC_UNUSED(R) \ | |
140 | ((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \ | |
141 | (R)->next_to_clean - (R)->next_to_use - 1) | |
142 | ||
143 | #define IXGB_GET_DESC(R, i, type) (&(((struct type *)((R).desc))[i])) | |
144 | #define IXGB_RX_DESC(R, i) IXGB_GET_DESC(R, i, ixgb_rx_desc) | |
145 | #define IXGB_TX_DESC(R, i) IXGB_GET_DESC(R, i, ixgb_tx_desc) | |
146 | #define IXGB_CONTEXT_DESC(R, i) IXGB_GET_DESC(R, i, ixgb_context_desc) | |
147 | ||
148 | /* board specific private data structure */ | |
149 | ||
150 | struct ixgb_adapter { | |
151 | struct timer_list watchdog_timer; | |
152 | struct vlan_group *vlgrp; | |
222441a6 JP |
153 | u32 bd_number; |
154 | u32 rx_buffer_len; | |
155 | u32 part_num; | |
156 | u16 link_speed; | |
157 | u16 link_duplex; | |
1da177e4 LT |
158 | struct work_struct tx_timeout_task; |
159 | ||
160 | struct timer_list blink_timer; | |
161 | unsigned long led_status; | |
162 | ||
163 | /* TX */ | |
7a0eec3b | 164 | struct ixgb_desc_ring tx_ring ____cacheline_aligned_in_smp; |
dfd341e4 | 165 | unsigned int restart_queue; |
1da177e4 | 166 | unsigned long timeo_start; |
222441a6 JP |
167 | u32 tx_cmd_type; |
168 | u64 hw_csum_tx_good; | |
169 | u64 hw_csum_tx_error; | |
170 | u32 tx_int_delay; | |
171 | u32 tx_timeout_count; | |
446490ca JP |
172 | bool tx_int_delay_enable; |
173 | bool detect_tx_hung; | |
1da177e4 LT |
174 | |
175 | /* RX */ | |
176 | struct ixgb_desc_ring rx_ring; | |
222441a6 JP |
177 | u64 hw_csum_rx_error; |
178 | u64 hw_csum_rx_good; | |
179 | u32 rx_int_delay; | |
446490ca | 180 | bool rx_csum; |
1da177e4 LT |
181 | |
182 | /* OS defined structs */ | |
bea3348e | 183 | struct napi_struct napi; |
1da177e4 LT |
184 | struct net_device *netdev; |
185 | struct pci_dev *pdev; | |
1da177e4 LT |
186 | |
187 | /* structs defined in ixgb_hw.h */ | |
188 | struct ixgb_hw hw; | |
ec9c3f5d | 189 | u16 msg_enable; |
1da177e4 | 190 | struct ixgb_hw_stats stats; |
222441a6 | 191 | u32 alloc_rx_buff_failed; |
446490ca | 192 | bool have_msi; |
bab2bce7 JB |
193 | unsigned long flags; |
194 | }; | |
195 | ||
196 | enum ixgb_state_t { | |
197 | /* TBD | |
198 | __IXGB_TESTING, | |
199 | __IXGB_RESETTING, | |
200 | */ | |
201 | __IXGB_DOWN | |
1da177e4 | 202 | }; |
273dc74e SH |
203 | |
204 | /* Exported from other modules */ | |
205 | extern void ixgb_check_options(struct ixgb_adapter *adapter); | |
206 | extern void ixgb_set_ethtool_ops(struct net_device *netdev); | |
207 | extern char ixgb_driver_name[]; | |
208 | extern const char ixgb_driver_version[]; | |
209 | ||
a9340b86 AK |
210 | extern int ixgb_up(struct ixgb_adapter *adapter); |
211 | extern void ixgb_down(struct ixgb_adapter *adapter, bool kill_watchdog); | |
212 | extern void ixgb_reset(struct ixgb_adapter *adapter); | |
213 | extern int ixgb_setup_rx_resources(struct ixgb_adapter *adapter); | |
214 | extern int ixgb_setup_tx_resources(struct ixgb_adapter *adapter); | |
215 | extern void ixgb_free_rx_resources(struct ixgb_adapter *adapter); | |
216 | extern void ixgb_free_tx_resources(struct ixgb_adapter *adapter); | |
217 | extern void ixgb_update_stats(struct ixgb_adapter *adapter); | |
218 | ||
219 | ||
1da177e4 | 220 | #endif /* _IXGB_H_ */ |