remove NETIF_F_TSO ifdefery
[deliverable/linux.git] / drivers / net / e1000 / e1000.h
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1/*******************************************************************************
2
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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
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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
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22 Contact Information:
23 Linux NICS <linux.nics@intel.com>
3d41e30a 24 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
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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>
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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>
87ca4e5b 62#include <linux/ipv6.h>
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63#include <linux/tcp.h>
64#include <linux/udp.h>
65#include <net/pkt_sched.h>
66#include <linux/list.h>
67#include <linux/reboot.h>
1da177e4 68#include <net/checksum.h>
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69#include <linux/mii.h>
70#include <linux/ethtool.h>
71#include <linux/if_vlan.h>
72
73#define BAR_0 0
74#define BAR_1 1
75#define BAR_5 5
76
77#define INTEL_E1000_ETHERNET_DEVICE(device_id) {\
78 PCI_DEVICE(PCI_VENDOR_ID_INTEL, device_id)}
79
80struct e1000_adapter;
81
82#include "e1000_hw.h"
83
84#ifdef DBG
85#define E1000_DBG(args...) printk(KERN_DEBUG "e1000: " args)
86#else
87#define E1000_DBG(args...)
88#endif
89
90#define E1000_ERR(args...) printk(KERN_ERR "e1000: " args)
91
92#define PFX "e1000: "
93#define DPRINTK(nlevel, klevel, fmt, args...) \
94 (void)((NETIF_MSG_##nlevel & adapter->msg_enable) && \
95 printk(KERN_##klevel PFX "%s: %s: " fmt, adapter->netdev->name, \
96 __FUNCTION__ , ## args))
97
98#define E1000_MAX_INTR 10
99
100/* TX/RX descriptor defines */
101#define E1000_DEFAULT_TXD 256
102#define E1000_MAX_TXD 256
103#define E1000_MIN_TXD 80
104#define E1000_MAX_82544_TXD 4096
105
106#define E1000_DEFAULT_RXD 256
107#define E1000_MAX_RXD 256
108#define E1000_MIN_RXD 80
109#define E1000_MAX_82544_RXD 4096
110
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111/* this is the size past which hardware will drop packets when setting LPE=0 */
112#define MAXIMUM_ETHERNET_VLAN_SIZE 1522
113
1da177e4 114/* Supported Rx Buffer Sizes */
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115#define E1000_RXBUFFER_128 128 /* Used for packet split */
116#define E1000_RXBUFFER_256 256 /* Used for packet split */
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117#define E1000_RXBUFFER_512 512
118#define E1000_RXBUFFER_1024 1024
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119#define E1000_RXBUFFER_2048 2048
120#define E1000_RXBUFFER_4096 4096
121#define E1000_RXBUFFER_8192 8192
122#define E1000_RXBUFFER_16384 16384
123
124/* SmartSpeed delimiters */
125#define E1000_SMARTSPEED_DOWNSHIFT 3
126#define E1000_SMARTSPEED_MAX 15
127
128/* Packet Buffer allocations */
129#define E1000_PBA_BYTES_SHIFT 0xA
130#define E1000_TX_HEAD_ADDR_SHIFT 7
131#define E1000_PBA_TX_MASK 0xFFFF0000
132
133/* Flow Control Watermarks */
134#define E1000_FC_HIGH_DIFF 0x1638 /* High: 5688 bytes below Rx FIFO size */
135#define E1000_FC_LOW_DIFF 0x1640 /* Low: 5696 bytes below Rx FIFO size */
136
137#define E1000_FC_PAUSE_TIME 0x0680 /* 858 usec */
138
139/* How many Tx Descriptors do we need to call netif_wake_queue ? */
140#define E1000_TX_QUEUE_WAKE 16
141/* How many Rx Buffers do we bundle into one write to the hardware ? */
142#define E1000_RX_BUFFER_WRITE 16 /* Must be power of 2 */
143
2648345f 144#define AUTO_ALL_MODES 0
70cf362b 145#define E1000_EEPROM_82544_APM 0x0004
cd94dd0b 146#define E1000_EEPROM_ICH8_APME 0x0004
2648345f 147#define E1000_EEPROM_APME 0x0400
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148
149#ifndef E1000_MASTER_SLAVE
150/* Switch to override PHY master/slave setting */
151#define E1000_MASTER_SLAVE e1000_ms_hw_default
152#endif
153
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154#define E1000_MNG_VLAN_NONE -1
155/* Number of packet split data buffers (not including the header buffer) */
156#define PS_PAGE_BUFFERS MAX_PS_BUFFERS-1
157
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158/* only works for sizes that are powers of 2 */
159#define E1000_ROUNDUP(i, size) ((i) = (((i) + (size) - 1) & ~((size) - 1)))
160
161/* wrapper around a pointer to a socket buffer,
162 * so a DMA handle can be stored along with the buffer */
163struct e1000_buffer {
164 struct sk_buff *skb;
c6963ef5 165 dma_addr_t dma;
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166 unsigned long time_stamp;
167 uint16_t length;
168 uint16_t next_to_watch;
169};
170
7bfa4816 171
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172struct e1000_ps_page { struct page *ps_page[PS_PAGE_BUFFERS]; };
173struct e1000_ps_page_dma { uint64_t ps_page_dma[PS_PAGE_BUFFERS]; };
2d7edb92 174
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175struct e1000_tx_ring {
176 /* pointer to the descriptor ring memory */
177 void *desc;
178 /* physical address of the descriptor ring */
179 dma_addr_t dma;
180 /* length of descriptor ring in bytes */
181 unsigned int size;
182 /* number of descriptors in the ring */
183 unsigned int count;
184 /* next descriptor to associate a buffer with */
185 unsigned int next_to_use;
186 /* next descriptor to check for DD status bit */
187 unsigned int next_to_clean;
188 /* array of buffer information structs */
189 struct e1000_buffer *buffer_info;
190
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191 spinlock_t tx_lock;
192 uint16_t tdh;
193 uint16_t tdt;
fd803241 194 boolean_t last_tx_tso;
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195};
196
197struct e1000_rx_ring {
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198 /* pointer to the descriptor ring memory */
199 void *desc;
200 /* physical address of the descriptor ring */
201 dma_addr_t dma;
202 /* length of descriptor ring in bytes */
203 unsigned int size;
204 /* number of descriptors in the ring */
205 unsigned int count;
206 /* next descriptor to associate a buffer with */
207 unsigned int next_to_use;
208 /* next descriptor to check for DD status bit */
209 unsigned int next_to_clean;
210 /* array of buffer information structs */
211 struct e1000_buffer *buffer_info;
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212 /* arrays of page information for packet split */
213 struct e1000_ps_page *ps_page;
214 struct e1000_ps_page_dma *ps_page_dma;
581d708e 215
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216 /* cpu for rx queue */
217 int cpu;
218
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219 uint16_t rdh;
220 uint16_t rdt;
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221};
222
223#define E1000_DESC_UNUSED(R) \
224 ((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \
225 (R)->next_to_clean - (R)->next_to_use - 1)
226
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227#define E1000_RX_DESC_PS(R, i) \
228 (&(((union e1000_rx_desc_packet_split *)((R).desc))[i]))
229#define E1000_RX_DESC_EXT(R, i) \
230 (&(((union e1000_rx_desc_extended *)((R).desc))[i]))
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231#define E1000_GET_DESC(R, i, type) (&(((struct type *)((R).desc))[i]))
232#define E1000_RX_DESC(R, i) E1000_GET_DESC(R, i, e1000_rx_desc)
233#define E1000_TX_DESC(R, i) E1000_GET_DESC(R, i, e1000_tx_desc)
234#define E1000_CONTEXT_DESC(R, i) E1000_GET_DESC(R, i, e1000_context_desc)
235
236/* board specific private data structure */
237
238struct e1000_adapter {
239 struct timer_list tx_fifo_stall_timer;
240 struct timer_list watchdog_timer;
241 struct timer_list phy_info_timer;
242 struct vlan_group *vlgrp;
8fc897b0 243 uint16_t mng_vlan_id;
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244 uint32_t bd_number;
245 uint32_t rx_buffer_len;
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246 uint32_t wol;
247 uint32_t smartspeed;
248 uint32_t en_mng_pt;
249 uint16_t link_speed;
250 uint16_t link_duplex;
251 spinlock_t stats_lock;
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252#ifdef CONFIG_E1000_NAPI
253 spinlock_t tx_queue_lock;
254#endif
1da177e4 255 atomic_t irq_sem;
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256 unsigned int total_tx_bytes;
257 unsigned int total_tx_packets;
258 unsigned int total_rx_bytes;
259 unsigned int total_rx_packets;
260 /* Interrupt Throttle Rate */
261 uint32_t itr;
262 uint32_t itr_setting;
263 uint16_t tx_itr;
264 uint16_t rx_itr;
265
87041639 266 struct work_struct reset_task;
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267 uint8_t fc_autoneg;
268
269 struct timer_list blink_timer;
270 unsigned long led_status;
271
272 /* TX */
581d708e 273 struct e1000_tx_ring *tx_ring; /* One per active queue */
fcfb1224 274 unsigned int restart_queue;
f56799ea 275 unsigned long tx_queue_len;
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276 uint32_t txd_cmd;
277 uint32_t tx_int_delay;
278 uint32_t tx_abs_int_delay;
279 uint32_t gotcl;
280 uint64_t gotcl_old;
281 uint64_t tpt_old;
282 uint64_t colc_old;
6b7660cd 283 uint32_t tx_timeout_count;
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284 uint32_t tx_fifo_head;
285 uint32_t tx_head_addr;
286 uint32_t tx_fifo_size;
66a2b0a3 287 uint8_t tx_timeout_factor;
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288 atomic_t tx_fifo_stall;
289 boolean_t pcix_82544;
290 boolean_t detect_tx_hung;
291
292 /* RX */
2d7edb92 293#ifdef CONFIG_E1000_NAPI
581d708e 294 boolean_t (*clean_rx) (struct e1000_adapter *adapter,
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295 struct e1000_rx_ring *rx_ring,
296 int *work_done, int work_to_do);
2d7edb92 297#else
581d708e 298 boolean_t (*clean_rx) (struct e1000_adapter *adapter,
0f15a8fa 299 struct e1000_rx_ring *rx_ring);
2d7edb92 300#endif
581d708e 301 void (*alloc_rx_buf) (struct e1000_adapter *adapter,
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302 struct e1000_rx_ring *rx_ring,
303 int cleaned_count);
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304 struct e1000_rx_ring *rx_ring; /* One per active queue */
305#ifdef CONFIG_E1000_NAPI
306 struct net_device *polling_netdev; /* One per active queue */
581d708e 307#endif
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308 int num_tx_queues;
309 int num_rx_queues;
581d708e 310
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311 uint64_t hw_csum_err;
312 uint64_t hw_csum_good;
e4c811c9 313 uint64_t rx_hdr_split;
6b7660cd 314 uint32_t alloc_rx_buff_failed;
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315 uint32_t rx_int_delay;
316 uint32_t rx_abs_int_delay;
317 boolean_t rx_csum;
e4c811c9 318 unsigned int rx_ps_pages;
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319 uint32_t gorcl;
320 uint64_t gorcl_old;
2d7edb92 321 uint16_t rx_ps_bsize0;
1da177e4 322
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323
324 /* OS defined structs */
325 struct net_device *netdev;
326 struct pci_dev *pdev;
327 struct net_device_stats net_stats;
328
329 /* structs defined in e1000_hw.h */
330 struct e1000_hw hw;
331 struct e1000_hw_stats stats;
332 struct e1000_phy_info phy_info;
333 struct e1000_phy_stats phy_stats;
334
335 uint32_t test_icr;
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336 struct e1000_tx_ring test_tx_ring;
337 struct e1000_rx_ring test_rx_ring;
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338
339
87041639 340 uint32_t *config_space;
1da177e4 341 int msg_enable;
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342#ifdef CONFIG_PCI_MSI
343 boolean_t have_msi;
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344#endif
345 /* to not mess up cache alignment, always add to the bottom */
7e6c9861 346 boolean_t tso_force;
9a53a202 347 boolean_t smart_power_down; /* phy smart power down */
120cd576 348 boolean_t quad_port_a;
2db10a08 349 unsigned long flags;
120cd576 350 uint32_t eeprom_wol;
1da177e4 351};
30dcbf29 352
2db10a08 353enum e1000_state_t {
1314bbf3 354 __E1000_TESTING,
2db10a08 355 __E1000_RESETTING,
1314bbf3 356 __E1000_DOWN
2db10a08 357};
30dcbf29 358
1da177e4 359#endif /* _E1000_H_ */
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