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1da177e4 LT |
1 | /******************************************************************************* |
2 | ||
0abb6eb1 AK |
3 | Intel PRO/1000 Linux driver |
4 | Copyright(c) 1999 - 2006 Intel Corporation. | |
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> | |
3d41e30a | 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 | ||
30 | /* Linux PRO/1000 Ethernet Driver main header file */ | |
31 | ||
32 | #ifndef _E1000_H_ | |
33 | #define _E1000_H_ | |
34 | ||
35 | #include <linux/stddef.h> | |
1da177e4 LT |
36 | #include <linux/module.h> |
37 | #include <linux/types.h> | |
38 | #include <asm/byteorder.h> | |
39 | #include <linux/init.h> | |
40 | #include <linux/mm.h> | |
41 | #include <linux/errno.h> | |
42 | #include <linux/ioport.h> | |
43 | #include <linux/pci.h> | |
44 | #include <linux/kernel.h> | |
45 | #include <linux/netdevice.h> | |
46 | #include <linux/etherdevice.h> | |
47 | #include <linux/skbuff.h> | |
48 | #include <linux/delay.h> | |
49 | #include <linux/timer.h> | |
50 | #include <linux/slab.h> | |
51 | #include <linux/vmalloc.h> | |
52 | #include <linux/interrupt.h> | |
53 | #include <linux/string.h> | |
54 | #include <linux/pagemap.h> | |
55 | #include <linux/dma-mapping.h> | |
56 | #include <linux/bitops.h> | |
57 | #include <asm/io.h> | |
58 | #include <asm/irq.h> | |
59 | #include <linux/capability.h> | |
60 | #include <linux/in.h> | |
61 | #include <linux/ip.h> | |
62 | #include <linux/tcp.h> | |
63 | #include <linux/udp.h> | |
64 | #include <net/pkt_sched.h> | |
65 | #include <linux/list.h> | |
66 | #include <linux/reboot.h> | |
67 | #ifdef NETIF_F_TSO | |
68 | #include <net/checksum.h> | |
69 | #endif | |
1da177e4 LT |
70 | #include <linux/mii.h> |
71 | #include <linux/ethtool.h> | |
72 | #include <linux/if_vlan.h> | |
73 | ||
74 | #define BAR_0 0 | |
75 | #define BAR_1 1 | |
76 | #define BAR_5 5 | |
77 | ||
78 | #define INTEL_E1000_ETHERNET_DEVICE(device_id) {\ | |
79 | PCI_DEVICE(PCI_VENDOR_ID_INTEL, device_id)} | |
80 | ||
81 | struct e1000_adapter; | |
82 | ||
83 | #include "e1000_hw.h" | |
84 | ||
85 | #ifdef DBG | |
86 | #define E1000_DBG(args...) printk(KERN_DEBUG "e1000: " args) | |
87 | #else | |
88 | #define E1000_DBG(args...) | |
89 | #endif | |
90 | ||
91 | #define E1000_ERR(args...) printk(KERN_ERR "e1000: " args) | |
92 | ||
93 | #define PFX "e1000: " | |
94 | #define DPRINTK(nlevel, klevel, fmt, args...) \ | |
95 | (void)((NETIF_MSG_##nlevel & adapter->msg_enable) && \ | |
96 | printk(KERN_##klevel PFX "%s: %s: " fmt, adapter->netdev->name, \ | |
97 | __FUNCTION__ , ## args)) | |
98 | ||
99 | #define E1000_MAX_INTR 10 | |
100 | ||
101 | /* TX/RX descriptor defines */ | |
102 | #define E1000_DEFAULT_TXD 256 | |
103 | #define E1000_MAX_TXD 256 | |
104 | #define E1000_MIN_TXD 80 | |
105 | #define E1000_MAX_82544_TXD 4096 | |
106 | ||
107 | #define E1000_DEFAULT_RXD 256 | |
108 | #define E1000_MAX_RXD 256 | |
109 | #define E1000_MIN_RXD 80 | |
110 | #define E1000_MAX_82544_RXD 4096 | |
111 | ||
eb0f8054 AK |
112 | /* this is the size past which hardware will drop packets when setting LPE=0 */ |
113 | #define MAXIMUM_ETHERNET_VLAN_SIZE 1522 | |
114 | ||
1da177e4 | 115 | /* Supported Rx Buffer Sizes */ |
2d7edb92 MC |
116 | #define E1000_RXBUFFER_128 128 /* Used for packet split */ |
117 | #define E1000_RXBUFFER_256 256 /* Used for packet split */ | |
9e2feace AK |
118 | #define E1000_RXBUFFER_512 512 |
119 | #define E1000_RXBUFFER_1024 1024 | |
1da177e4 LT |
120 | #define E1000_RXBUFFER_2048 2048 |
121 | #define E1000_RXBUFFER_4096 4096 | |
122 | #define E1000_RXBUFFER_8192 8192 | |
123 | #define E1000_RXBUFFER_16384 16384 | |
124 | ||
125 | /* SmartSpeed delimiters */ | |
126 | #define E1000_SMARTSPEED_DOWNSHIFT 3 | |
127 | #define E1000_SMARTSPEED_MAX 15 | |
128 | ||
129 | /* Packet Buffer allocations */ | |
130 | #define E1000_PBA_BYTES_SHIFT 0xA | |
131 | #define E1000_TX_HEAD_ADDR_SHIFT 7 | |
132 | #define E1000_PBA_TX_MASK 0xFFFF0000 | |
133 | ||
134 | /* Flow Control Watermarks */ | |
135 | #define E1000_FC_HIGH_DIFF 0x1638 /* High: 5688 bytes below Rx FIFO size */ | |
136 | #define E1000_FC_LOW_DIFF 0x1640 /* Low: 5696 bytes below Rx FIFO size */ | |
137 | ||
138 | #define E1000_FC_PAUSE_TIME 0x0680 /* 858 usec */ | |
139 | ||
140 | /* How many Tx Descriptors do we need to call netif_wake_queue ? */ | |
141 | #define E1000_TX_QUEUE_WAKE 16 | |
142 | /* How many Rx Buffers do we bundle into one write to the hardware ? */ | |
143 | #define E1000_RX_BUFFER_WRITE 16 /* Must be power of 2 */ | |
144 | ||
2648345f | 145 | #define AUTO_ALL_MODES 0 |
70cf362b | 146 | #define E1000_EEPROM_82544_APM 0x0004 |
cd94dd0b | 147 | #define E1000_EEPROM_ICH8_APME 0x0004 |
2648345f | 148 | #define E1000_EEPROM_APME 0x0400 |
1da177e4 LT |
149 | |
150 | #ifndef E1000_MASTER_SLAVE | |
151 | /* Switch to override PHY master/slave setting */ | |
152 | #define E1000_MASTER_SLAVE e1000_ms_hw_default | |
153 | #endif | |
154 | ||
2d7edb92 MC |
155 | #define E1000_MNG_VLAN_NONE -1 |
156 | /* Number of packet split data buffers (not including the header buffer) */ | |
157 | #define PS_PAGE_BUFFERS MAX_PS_BUFFERS-1 | |
158 | ||
1da177e4 LT |
159 | /* only works for sizes that are powers of 2 */ |
160 | #define E1000_ROUNDUP(i, size) ((i) = (((i) + (size) - 1) & ~((size) - 1))) | |
161 | ||
162 | /* wrapper around a pointer to a socket buffer, | |
163 | * so a DMA handle can be stored along with the buffer */ | |
164 | struct e1000_buffer { | |
165 | struct sk_buff *skb; | |
c6963ef5 | 166 | dma_addr_t dma; |
1da177e4 LT |
167 | unsigned long time_stamp; |
168 | uint16_t length; | |
169 | uint16_t next_to_watch; | |
170 | }; | |
171 | ||
7bfa4816 | 172 | |
e4c811c9 MC |
173 | struct e1000_ps_page { struct page *ps_page[PS_PAGE_BUFFERS]; }; |
174 | struct e1000_ps_page_dma { uint64_t ps_page_dma[PS_PAGE_BUFFERS]; }; | |
2d7edb92 | 175 | |
581d708e MC |
176 | struct e1000_tx_ring { |
177 | /* pointer to the descriptor ring memory */ | |
178 | void *desc; | |
179 | /* physical address of the descriptor ring */ | |
180 | dma_addr_t dma; | |
181 | /* length of descriptor ring in bytes */ | |
182 | unsigned int size; | |
183 | /* number of descriptors in the ring */ | |
184 | unsigned int count; | |
185 | /* next descriptor to associate a buffer with */ | |
186 | unsigned int next_to_use; | |
187 | /* next descriptor to check for DD status bit */ | |
188 | unsigned int next_to_clean; | |
189 | /* array of buffer information structs */ | |
190 | struct e1000_buffer *buffer_info; | |
191 | ||
581d708e MC |
192 | spinlock_t tx_lock; |
193 | uint16_t tdh; | |
194 | uint16_t tdt; | |
fd803241 | 195 | boolean_t last_tx_tso; |
581d708e MC |
196 | }; |
197 | ||
198 | struct e1000_rx_ring { | |
1da177e4 LT |
199 | /* pointer to the descriptor ring memory */ |
200 | void *desc; | |
201 | /* physical address of the descriptor ring */ | |
202 | dma_addr_t dma; | |
203 | /* length of descriptor ring in bytes */ | |
204 | unsigned int size; | |
205 | /* number of descriptors in the ring */ | |
206 | unsigned int count; | |
207 | /* next descriptor to associate a buffer with */ | |
208 | unsigned int next_to_use; | |
209 | /* next descriptor to check for DD status bit */ | |
210 | unsigned int next_to_clean; | |
211 | /* array of buffer information structs */ | |
212 | struct e1000_buffer *buffer_info; | |
2d7edb92 MC |
213 | /* arrays of page information for packet split */ |
214 | struct e1000_ps_page *ps_page; | |
215 | struct e1000_ps_page_dma *ps_page_dma; | |
581d708e | 216 | |
545c67c0 JK |
217 | /* cpu for rx queue */ |
218 | int cpu; | |
219 | ||
581d708e MC |
220 | uint16_t rdh; |
221 | uint16_t rdt; | |
1da177e4 LT |
222 | }; |
223 | ||
224 | #define E1000_DESC_UNUSED(R) \ | |
225 | ((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \ | |
226 | (R)->next_to_clean - (R)->next_to_use - 1) | |
227 | ||
2d7edb92 MC |
228 | #define E1000_RX_DESC_PS(R, i) \ |
229 | (&(((union e1000_rx_desc_packet_split *)((R).desc))[i])) | |
230 | #define E1000_RX_DESC_EXT(R, i) \ | |
231 | (&(((union e1000_rx_desc_extended *)((R).desc))[i])) | |
1da177e4 LT |
232 | #define E1000_GET_DESC(R, i, type) (&(((struct type *)((R).desc))[i])) |
233 | #define E1000_RX_DESC(R, i) E1000_GET_DESC(R, i, e1000_rx_desc) | |
234 | #define E1000_TX_DESC(R, i) E1000_GET_DESC(R, i, e1000_tx_desc) | |
235 | #define E1000_CONTEXT_DESC(R, i) E1000_GET_DESC(R, i, e1000_context_desc) | |
236 | ||
237 | /* board specific private data structure */ | |
238 | ||
239 | struct e1000_adapter { | |
240 | struct timer_list tx_fifo_stall_timer; | |
241 | struct timer_list watchdog_timer; | |
242 | struct timer_list phy_info_timer; | |
243 | struct vlan_group *vlgrp; | |
8fc897b0 | 244 | uint16_t mng_vlan_id; |
1da177e4 LT |
245 | uint32_t bd_number; |
246 | uint32_t rx_buffer_len; | |
1da177e4 LT |
247 | uint32_t wol; |
248 | uint32_t smartspeed; | |
249 | uint32_t en_mng_pt; | |
250 | uint16_t link_speed; | |
251 | uint16_t link_duplex; | |
252 | spinlock_t stats_lock; | |
7bfa4816 JK |
253 | #ifdef CONFIG_E1000_NAPI |
254 | spinlock_t tx_queue_lock; | |
255 | #endif | |
1da177e4 | 256 | atomic_t irq_sem; |
87041639 | 257 | struct work_struct reset_task; |
1da177e4 LT |
258 | uint8_t fc_autoneg; |
259 | ||
260 | struct timer_list blink_timer; | |
261 | unsigned long led_status; | |
262 | ||
263 | /* TX */ | |
581d708e | 264 | struct e1000_tx_ring *tx_ring; /* One per active queue */ |
f56799ea | 265 | unsigned long tx_queue_len; |
1da177e4 LT |
266 | uint32_t txd_cmd; |
267 | uint32_t tx_int_delay; | |
268 | uint32_t tx_abs_int_delay; | |
269 | uint32_t gotcl; | |
270 | uint64_t gotcl_old; | |
271 | uint64_t tpt_old; | |
272 | uint64_t colc_old; | |
6b7660cd | 273 | uint32_t tx_timeout_count; |
1da177e4 LT |
274 | uint32_t tx_fifo_head; |
275 | uint32_t tx_head_addr; | |
276 | uint32_t tx_fifo_size; | |
66a2b0a3 | 277 | uint8_t tx_timeout_factor; |
1da177e4 LT |
278 | atomic_t tx_fifo_stall; |
279 | boolean_t pcix_82544; | |
280 | boolean_t detect_tx_hung; | |
281 | ||
282 | /* RX */ | |
2d7edb92 | 283 | #ifdef CONFIG_E1000_NAPI |
581d708e | 284 | boolean_t (*clean_rx) (struct e1000_adapter *adapter, |
0f15a8fa JK |
285 | struct e1000_rx_ring *rx_ring, |
286 | int *work_done, int work_to_do); | |
2d7edb92 | 287 | #else |
581d708e | 288 | boolean_t (*clean_rx) (struct e1000_adapter *adapter, |
0f15a8fa | 289 | struct e1000_rx_ring *rx_ring); |
2d7edb92 | 290 | #endif |
581d708e | 291 | void (*alloc_rx_buf) (struct e1000_adapter *adapter, |
0f15a8fa JK |
292 | struct e1000_rx_ring *rx_ring, |
293 | int cleaned_count); | |
581d708e MC |
294 | struct e1000_rx_ring *rx_ring; /* One per active queue */ |
295 | #ifdef CONFIG_E1000_NAPI | |
296 | struct net_device *polling_netdev; /* One per active queue */ | |
581d708e | 297 | #endif |
f56799ea JK |
298 | int num_tx_queues; |
299 | int num_rx_queues; | |
581d708e | 300 | |
1da177e4 LT |
301 | uint64_t hw_csum_err; |
302 | uint64_t hw_csum_good; | |
e4c811c9 | 303 | uint64_t rx_hdr_split; |
6b7660cd | 304 | uint32_t alloc_rx_buff_failed; |
1da177e4 LT |
305 | uint32_t rx_int_delay; |
306 | uint32_t rx_abs_int_delay; | |
307 | boolean_t rx_csum; | |
e4c811c9 | 308 | unsigned int rx_ps_pages; |
1da177e4 LT |
309 | uint32_t gorcl; |
310 | uint64_t gorcl_old; | |
2d7edb92 | 311 | uint16_t rx_ps_bsize0; |
1da177e4 LT |
312 | |
313 | /* Interrupt Throttle Rate */ | |
314 | uint32_t itr; | |
315 | ||
316 | /* OS defined structs */ | |
317 | struct net_device *netdev; | |
318 | struct pci_dev *pdev; | |
319 | struct net_device_stats net_stats; | |
320 | ||
321 | /* structs defined in e1000_hw.h */ | |
322 | struct e1000_hw hw; | |
323 | struct e1000_hw_stats stats; | |
324 | struct e1000_phy_info phy_info; | |
325 | struct e1000_phy_stats phy_stats; | |
326 | ||
327 | uint32_t test_icr; | |
581d708e MC |
328 | struct e1000_tx_ring test_tx_ring; |
329 | struct e1000_rx_ring test_rx_ring; | |
1da177e4 LT |
330 | |
331 | ||
87041639 | 332 | uint32_t *config_space; |
1da177e4 | 333 | int msg_enable; |
fa4f7ef3 MC |
334 | #ifdef CONFIG_PCI_MSI |
335 | boolean_t have_msi; | |
7e6c9861 JK |
336 | #endif |
337 | /* to not mess up cache alignment, always add to the bottom */ | |
7e6c9861 JK |
338 | #ifdef NETIF_F_TSO |
339 | boolean_t tso_force; | |
fa4f7ef3 | 340 | #endif |
9a53a202 | 341 | boolean_t smart_power_down; /* phy smart power down */ |
120cd576 | 342 | boolean_t quad_port_a; |
2db10a08 | 343 | unsigned long flags; |
120cd576 | 344 | uint32_t eeprom_wol; |
1da177e4 | 345 | }; |
30dcbf29 | 346 | |
2db10a08 | 347 | enum e1000_state_t { |
1314bbf3 | 348 | __E1000_TESTING, |
2db10a08 | 349 | __E1000_RESETTING, |
1314bbf3 | 350 | __E1000_DOWN |
2db10a08 | 351 | }; |
30dcbf29 | 352 | |
1da177e4 | 353 | #endif /* _E1000_H_ */ |