|
1 /******************************************************************************* |
|
2 |
|
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 |
|
13 more details. |
|
14 |
|
15 You should have received a copy of the GNU General Public License along with |
|
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 |
|
22 Contact Information: |
|
23 Linux NICS <linux.nics@intel.com> |
|
24 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> |
|
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> |
|
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 #ifdef NETIF_F_TSO6 |
|
63 #include <linux/ipv6.h> |
|
64 #endif |
|
65 #include <linux/tcp.h> |
|
66 #include <linux/udp.h> |
|
67 #include <net/pkt_sched.h> |
|
68 #include <linux/list.h> |
|
69 #include <linux/reboot.h> |
|
70 #ifdef NETIF_F_TSO |
|
71 #include <net/checksum.h> |
|
72 #endif |
|
73 #include <linux/mii.h> |
|
74 #include <linux/ethtool.h> |
|
75 #include <linux/if_vlan.h> |
|
76 |
|
77 #define BAR_0 0 |
|
78 #define BAR_1 1 |
|
79 #define BAR_5 5 |
|
80 |
|
81 #define INTEL_E1000_ETHERNET_DEVICE(device_id) {\ |
|
82 PCI_DEVICE(PCI_VENDOR_ID_INTEL, device_id)} |
|
83 |
|
84 struct e1000_adapter; |
|
85 |
|
86 #include "e1000_hw.h" |
|
87 |
|
88 #ifdef DBG |
|
89 #define E1000_DBG(args...) printk(KERN_DEBUG "e1000: " args) |
|
90 #else |
|
91 #define E1000_DBG(args...) |
|
92 #endif |
|
93 |
|
94 #define E1000_ERR(args...) printk(KERN_ERR "e1000: " args) |
|
95 |
|
96 #define PFX "e1000: " |
|
97 #define DPRINTK(nlevel, klevel, fmt, args...) \ |
|
98 (void)((NETIF_MSG_##nlevel & adapter->msg_enable) && \ |
|
99 printk(KERN_##klevel PFX "%s: %s: " fmt, adapter->netdev->name, \ |
|
100 __FUNCTION__ , ## args)) |
|
101 |
|
102 #define E1000_MAX_INTR 10 |
|
103 |
|
104 /* TX/RX descriptor defines */ |
|
105 #define E1000_DEFAULT_TXD 256 |
|
106 #define E1000_MAX_TXD 256 |
|
107 #define E1000_MIN_TXD 80 |
|
108 #define E1000_MAX_82544_TXD 4096 |
|
109 |
|
110 #define E1000_DEFAULT_RXD 256 |
|
111 #define E1000_MAX_RXD 256 |
|
112 #define E1000_MIN_RXD 80 |
|
113 #define E1000_MAX_82544_RXD 4096 |
|
114 |
|
115 /* this is the size past which hardware will drop packets when setting LPE=0 */ |
|
116 #define MAXIMUM_ETHERNET_VLAN_SIZE 1522 |
|
117 |
|
118 /* Supported Rx Buffer Sizes */ |
|
119 #define E1000_RXBUFFER_128 128 /* Used for packet split */ |
|
120 #define E1000_RXBUFFER_256 256 /* Used for packet split */ |
|
121 #define E1000_RXBUFFER_512 512 |
|
122 #define E1000_RXBUFFER_1024 1024 |
|
123 #define E1000_RXBUFFER_2048 2048 |
|
124 #define E1000_RXBUFFER_4096 4096 |
|
125 #define E1000_RXBUFFER_8192 8192 |
|
126 #define E1000_RXBUFFER_16384 16384 |
|
127 |
|
128 /* SmartSpeed delimiters */ |
|
129 #define E1000_SMARTSPEED_DOWNSHIFT 3 |
|
130 #define E1000_SMARTSPEED_MAX 15 |
|
131 |
|
132 /* Packet Buffer allocations */ |
|
133 #define E1000_PBA_BYTES_SHIFT 0xA |
|
134 #define E1000_TX_HEAD_ADDR_SHIFT 7 |
|
135 #define E1000_PBA_TX_MASK 0xFFFF0000 |
|
136 |
|
137 /* Flow Control Watermarks */ |
|
138 #define E1000_FC_HIGH_DIFF 0x1638 /* High: 5688 bytes below Rx FIFO size */ |
|
139 #define E1000_FC_LOW_DIFF 0x1640 /* Low: 5696 bytes below Rx FIFO size */ |
|
140 |
|
141 #define E1000_FC_PAUSE_TIME 0x0680 /* 858 usec */ |
|
142 |
|
143 /* How many Tx Descriptors do we need to call netif_wake_queue ? */ |
|
144 #define E1000_TX_QUEUE_WAKE 16 |
|
145 /* How many Rx Buffers do we bundle into one write to the hardware ? */ |
|
146 #define E1000_RX_BUFFER_WRITE 16 /* Must be power of 2 */ |
|
147 |
|
148 #define AUTO_ALL_MODES 0 |
|
149 #define E1000_EEPROM_82544_APM 0x0004 |
|
150 #define E1000_EEPROM_ICH8_APME 0x0004 |
|
151 #define E1000_EEPROM_APME 0x0400 |
|
152 |
|
153 #ifndef E1000_MASTER_SLAVE |
|
154 /* Switch to override PHY master/slave setting */ |
|
155 #define E1000_MASTER_SLAVE e1000_ms_hw_default |
|
156 #endif |
|
157 |
|
158 #define E1000_MNG_VLAN_NONE -1 |
|
159 /* Number of packet split data buffers (not including the header buffer) */ |
|
160 #define PS_PAGE_BUFFERS MAX_PS_BUFFERS-1 |
|
161 |
|
162 /* only works for sizes that are powers of 2 */ |
|
163 #define E1000_ROUNDUP(i, size) ((i) = (((i) + (size) - 1) & ~((size) - 1))) |
|
164 |
|
165 /* wrapper around a pointer to a socket buffer, |
|
166 * so a DMA handle can be stored along with the buffer */ |
|
167 struct e1000_buffer { |
|
168 struct sk_buff *skb; |
|
169 dma_addr_t dma; |
|
170 unsigned long time_stamp; |
|
171 uint16_t length; |
|
172 uint16_t next_to_watch; |
|
173 }; |
|
174 |
|
175 |
|
176 struct e1000_ps_page { struct page *ps_page[PS_PAGE_BUFFERS]; }; |
|
177 struct e1000_ps_page_dma { uint64_t ps_page_dma[PS_PAGE_BUFFERS]; }; |
|
178 |
|
179 struct e1000_tx_ring { |
|
180 /* pointer to the descriptor ring memory */ |
|
181 void *desc; |
|
182 /* physical address of the descriptor ring */ |
|
183 dma_addr_t dma; |
|
184 /* length of descriptor ring in bytes */ |
|
185 unsigned int size; |
|
186 /* number of descriptors in the ring */ |
|
187 unsigned int count; |
|
188 /* next descriptor to associate a buffer with */ |
|
189 unsigned int next_to_use; |
|
190 /* next descriptor to check for DD status bit */ |
|
191 unsigned int next_to_clean; |
|
192 /* array of buffer information structs */ |
|
193 struct e1000_buffer *buffer_info; |
|
194 |
|
195 spinlock_t tx_lock; |
|
196 uint16_t tdh; |
|
197 uint16_t tdt; |
|
198 boolean_t last_tx_tso; |
|
199 }; |
|
200 |
|
201 struct e1000_rx_ring { |
|
202 /* pointer to the descriptor ring memory */ |
|
203 void *desc; |
|
204 /* physical address of the descriptor ring */ |
|
205 dma_addr_t dma; |
|
206 /* length of descriptor ring in bytes */ |
|
207 unsigned int size; |
|
208 /* number of descriptors in the ring */ |
|
209 unsigned int count; |
|
210 /* next descriptor to associate a buffer with */ |
|
211 unsigned int next_to_use; |
|
212 /* next descriptor to check for DD status bit */ |
|
213 unsigned int next_to_clean; |
|
214 /* array of buffer information structs */ |
|
215 struct e1000_buffer *buffer_info; |
|
216 /* arrays of page information for packet split */ |
|
217 struct e1000_ps_page *ps_page; |
|
218 struct e1000_ps_page_dma *ps_page_dma; |
|
219 |
|
220 /* cpu for rx queue */ |
|
221 int cpu; |
|
222 |
|
223 uint16_t rdh; |
|
224 uint16_t rdt; |
|
225 }; |
|
226 |
|
227 #define E1000_DESC_UNUSED(R) \ |
|
228 ((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \ |
|
229 (R)->next_to_clean - (R)->next_to_use - 1) |
|
230 |
|
231 #define E1000_RX_DESC_PS(R, i) \ |
|
232 (&(((union e1000_rx_desc_packet_split *)((R).desc))[i])) |
|
233 #define E1000_RX_DESC_EXT(R, i) \ |
|
234 (&(((union e1000_rx_desc_extended *)((R).desc))[i])) |
|
235 #define E1000_GET_DESC(R, i, type) (&(((struct type *)((R).desc))[i])) |
|
236 #define E1000_RX_DESC(R, i) E1000_GET_DESC(R, i, e1000_rx_desc) |
|
237 #define E1000_TX_DESC(R, i) E1000_GET_DESC(R, i, e1000_tx_desc) |
|
238 #define E1000_CONTEXT_DESC(R, i) E1000_GET_DESC(R, i, e1000_context_desc) |
|
239 |
|
240 /* board specific private data structure */ |
|
241 |
|
242 struct e1000_adapter { |
|
243 struct timer_list tx_fifo_stall_timer; |
|
244 struct timer_list watchdog_timer; |
|
245 struct timer_list phy_info_timer; |
|
246 struct vlan_group *vlgrp; |
|
247 uint16_t mng_vlan_id; |
|
248 uint32_t bd_number; |
|
249 uint32_t rx_buffer_len; |
|
250 uint32_t wol; |
|
251 uint32_t smartspeed; |
|
252 uint32_t en_mng_pt; |
|
253 uint16_t link_speed; |
|
254 uint16_t link_duplex; |
|
255 spinlock_t stats_lock; |
|
256 #ifdef CONFIG_E1000_NAPI |
|
257 spinlock_t tx_queue_lock; |
|
258 #endif |
|
259 atomic_t irq_sem; |
|
260 unsigned int detect_link; |
|
261 unsigned int total_tx_bytes; |
|
262 unsigned int total_tx_packets; |
|
263 unsigned int total_rx_bytes; |
|
264 unsigned int total_rx_packets; |
|
265 /* Interrupt Throttle Rate */ |
|
266 uint32_t itr; |
|
267 uint32_t itr_setting; |
|
268 uint16_t tx_itr; |
|
269 uint16_t rx_itr; |
|
270 |
|
271 struct work_struct reset_task; |
|
272 uint8_t fc_autoneg; |
|
273 |
|
274 struct timer_list blink_timer; |
|
275 unsigned long led_status; |
|
276 |
|
277 /* TX */ |
|
278 struct e1000_tx_ring *tx_ring; /* One per active queue */ |
|
279 unsigned int restart_queue; |
|
280 unsigned long tx_queue_len; |
|
281 uint32_t txd_cmd; |
|
282 uint32_t tx_int_delay; |
|
283 uint32_t tx_abs_int_delay; |
|
284 uint32_t gotcl; |
|
285 uint64_t gotcl_old; |
|
286 uint64_t tpt_old; |
|
287 uint64_t colc_old; |
|
288 uint32_t tx_timeout_count; |
|
289 uint32_t tx_fifo_head; |
|
290 uint32_t tx_head_addr; |
|
291 uint32_t tx_fifo_size; |
|
292 uint8_t tx_timeout_factor; |
|
293 atomic_t tx_fifo_stall; |
|
294 boolean_t pcix_82544; |
|
295 boolean_t detect_tx_hung; |
|
296 |
|
297 /* RX */ |
|
298 #ifdef CONFIG_E1000_NAPI |
|
299 boolean_t (*clean_rx) (struct e1000_adapter *adapter, |
|
300 struct e1000_rx_ring *rx_ring, |
|
301 int *work_done, int work_to_do); |
|
302 #else |
|
303 boolean_t (*clean_rx) (struct e1000_adapter *adapter, |
|
304 struct e1000_rx_ring *rx_ring); |
|
305 #endif |
|
306 void (*alloc_rx_buf) (struct e1000_adapter *adapter, |
|
307 struct e1000_rx_ring *rx_ring, |
|
308 int cleaned_count); |
|
309 struct e1000_rx_ring *rx_ring; /* One per active queue */ |
|
310 #ifdef CONFIG_E1000_NAPI |
|
311 struct net_device *polling_netdev; /* One per active queue */ |
|
312 #endif |
|
313 int num_tx_queues; |
|
314 int num_rx_queues; |
|
315 |
|
316 uint64_t hw_csum_err; |
|
317 uint64_t hw_csum_good; |
|
318 uint64_t rx_hdr_split; |
|
319 uint32_t alloc_rx_buff_failed; |
|
320 uint32_t rx_int_delay; |
|
321 uint32_t rx_abs_int_delay; |
|
322 boolean_t rx_csum; |
|
323 unsigned int rx_ps_pages; |
|
324 uint32_t gorcl; |
|
325 uint64_t gorcl_old; |
|
326 uint16_t rx_ps_bsize0; |
|
327 |
|
328 |
|
329 /* OS defined structs */ |
|
330 struct net_device *netdev; |
|
331 struct pci_dev *pdev; |
|
332 struct net_device_stats net_stats; |
|
333 |
|
334 /* structs defined in e1000_hw.h */ |
|
335 struct e1000_hw hw; |
|
336 struct e1000_hw_stats stats; |
|
337 struct e1000_phy_info phy_info; |
|
338 struct e1000_phy_stats phy_stats; |
|
339 |
|
340 uint32_t test_icr; |
|
341 struct e1000_tx_ring test_tx_ring; |
|
342 struct e1000_rx_ring test_rx_ring; |
|
343 |
|
344 |
|
345 uint32_t *config_space; |
|
346 int msg_enable; |
|
347 #ifdef CONFIG_PCI_MSI |
|
348 boolean_t have_msi; |
|
349 #endif |
|
350 /* to not mess up cache alignment, always add to the bottom */ |
|
351 #ifdef NETIF_F_TSO |
|
352 boolean_t tso_force; |
|
353 #endif |
|
354 boolean_t smart_power_down; /* phy smart power down */ |
|
355 boolean_t quad_port_a; |
|
356 unsigned long flags; |
|
357 uint32_t eeprom_wol; |
|
358 }; |
|
359 |
|
360 enum e1000_state_t { |
|
361 __E1000_TESTING, |
|
362 __E1000_RESETTING, |
|
363 __E1000_DOWN |
|
364 }; |
|
365 |
|
366 #endif /* _E1000_H_ */ |