1 /*******************************************************************************
3 Intel PRO/1000 Linux driver
4 Copyright(c) 1999 - 2006 Intel Corporation.
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.
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
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.
19 The full GNU General Public License is included in this distribution in
20 the file called "COPYING".
25 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *******************************************************************************/
30 /* Linux PRO/1000 Ethernet Driver main header file */
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>
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>
59 #include <linux/capability.h>
62 #include <linux/ipv6.h>
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>
68 #include <net/checksum.h>
69 #include <linux/mii.h>
70 #include <linux/ethtool.h>
71 #include <linux/if_vlan.h>
77 #define INTEL_E1000_ETHERNET_DEVICE(device_id) {\
78 PCI_DEVICE(PCI_VENDOR_ID_INTEL, device_id)}
84 #define E1000_MAX_INTR 10
86 /* TX/RX descriptor defines */
87 #define E1000_DEFAULT_TXD 256
88 #define E1000_MAX_TXD 256
89 #define E1000_MIN_TXD 48
90 #define E1000_MAX_82544_TXD 4096
92 #define E1000_DEFAULT_RXD 256
93 #define E1000_MAX_RXD 256
94 #define E1000_MIN_RXD 48
95 #define E1000_MAX_82544_RXD 4096
97 #define E1000_MIN_ITR_USECS 10 /* 100000 irq/sec */
98 #define E1000_MAX_ITR_USECS 10000 /* 100 irq/sec */
100 /* this is the size past which hardware will drop packets when setting LPE=0 */
101 #define MAXIMUM_ETHERNET_VLAN_SIZE 1522
103 /* Supported Rx Buffer Sizes */
104 #define E1000_RXBUFFER_128 128 /* Used for packet split */
105 #define E1000_RXBUFFER_256 256 /* Used for packet split */
106 #define E1000_RXBUFFER_512 512
107 #define E1000_RXBUFFER_1024 1024
108 #define E1000_RXBUFFER_2048 2048
109 #define E1000_RXBUFFER_4096 4096
110 #define E1000_RXBUFFER_8192 8192
111 #define E1000_RXBUFFER_16384 16384
113 /* SmartSpeed delimiters */
114 #define E1000_SMARTSPEED_DOWNSHIFT 3
115 #define E1000_SMARTSPEED_MAX 15
117 /* Packet Buffer allocations */
118 #define E1000_PBA_BYTES_SHIFT 0xA
119 #define E1000_TX_HEAD_ADDR_SHIFT 7
120 #define E1000_PBA_TX_MASK 0xFFFF0000
122 /* Flow Control Watermarks */
123 #define E1000_FC_HIGH_DIFF 0x1638 /* High: 5688 bytes below Rx FIFO size */
124 #define E1000_FC_LOW_DIFF 0x1640 /* Low: 5696 bytes below Rx FIFO size */
126 #define E1000_FC_PAUSE_TIME 0xFFFF /* pause for the max or until send xon */
128 /* How many Tx Descriptors do we need to call netif_wake_queue ? */
129 #define E1000_TX_QUEUE_WAKE 16
130 /* How many Rx Buffers do we bundle into one write to the hardware ? */
131 #define E1000_RX_BUFFER_WRITE 16 /* Must be power of 2 */
133 #define AUTO_ALL_MODES 0
134 #define E1000_EEPROM_82544_APM 0x0004
135 #define E1000_EEPROM_APME 0x0400
137 #ifndef E1000_MASTER_SLAVE
138 /* Switch to override PHY master/slave setting */
139 #define E1000_MASTER_SLAVE e1000_ms_hw_default
142 #define E1000_MNG_VLAN_NONE (-1)
144 /* wrapper around a pointer to a socket buffer,
145 * so a DMA handle can be stored along with the buffer */
146 struct e1000_buffer {
150 unsigned long time_stamp;
156 struct e1000_tx_ring {
157 /* pointer to the descriptor ring memory */
159 /* physical address of the descriptor ring */
161 /* length of descriptor ring in bytes */
163 /* number of descriptors in the ring */
165 /* next descriptor to associate a buffer with */
166 unsigned int next_to_use;
167 /* next descriptor to check for DD status bit */
168 unsigned int next_to_clean;
169 /* array of buffer information structs */
170 struct e1000_buffer *buffer_info;
177 struct e1000_rx_ring {
178 /* pointer to the descriptor ring memory */
180 /* physical address of the descriptor ring */
182 /* length of descriptor ring in bytes */
184 /* number of descriptors in the ring */
186 /* next descriptor to associate a buffer with */
187 unsigned int next_to_use;
188 /* next descriptor to check for DD status bit */
189 unsigned int next_to_clean;
190 /* array of buffer information structs */
191 struct e1000_buffer *buffer_info;
192 struct sk_buff *rx_skb_top;
194 /* cpu for rx queue */
201 #define E1000_DESC_UNUSED(R) \
202 ((((R)->next_to_clean > (R)->next_to_use) \
203 ? 0 : (R)->count) + (R)->next_to_clean - (R)->next_to_use - 1)
205 #define E1000_RX_DESC_EXT(R, i) \
206 (&(((union e1000_rx_desc_extended *)((R).desc))[i]))
207 #define E1000_GET_DESC(R, i, type) (&(((struct type *)((R).desc))[i]))
208 #define E1000_RX_DESC(R, i) E1000_GET_DESC(R, i, e1000_rx_desc)
209 #define E1000_TX_DESC(R, i) E1000_GET_DESC(R, i, e1000_tx_desc)
210 #define E1000_CONTEXT_DESC(R, i) E1000_GET_DESC(R, i, e1000_context_desc)
212 /* board specific private data structure */
214 struct e1000_adapter {
215 struct timer_list tx_fifo_stall_timer;
216 struct timer_list watchdog_timer;
217 struct timer_list phy_info_timer;
218 struct vlan_group *vlgrp;
227 spinlock_t stats_lock;
228 unsigned int total_tx_bytes;
229 unsigned int total_tx_packets;
230 unsigned int total_rx_bytes;
231 unsigned int total_rx_packets;
232 /* Interrupt Throttle Rate */
238 struct work_struct reset_task;
241 struct timer_list blink_timer;
242 unsigned long led_status;
245 struct e1000_tx_ring *tx_ring; /* One per active queue */
246 unsigned int restart_queue;
249 u32 tx_abs_int_delay;
254 u32 tx_timeout_count;
258 u8 tx_timeout_factor;
259 atomic_t tx_fifo_stall;
264 bool (*clean_rx)(struct e1000_adapter *adapter,
265 struct e1000_rx_ring *rx_ring,
266 int *work_done, int work_to_do);
267 void (*alloc_rx_buf)(struct e1000_adapter *adapter,
268 struct e1000_rx_ring *rx_ring,
270 struct e1000_rx_ring *rx_ring; /* One per active queue */
271 struct napi_struct napi;
278 u32 alloc_rx_buff_failed;
280 u32 rx_abs_int_delay;
285 /* OS defined structs */
286 struct net_device *netdev;
287 struct pci_dev *pdev;
289 /* structs defined in e1000_hw.h */
291 struct e1000_hw_stats stats;
292 struct e1000_phy_info phy_info;
293 struct e1000_phy_stats phy_stats;
296 struct e1000_tx_ring test_tx_ring;
297 struct e1000_rx_ring test_rx_ring;
301 /* to not mess up cache alignment, always add to the bottom */
303 bool smart_power_down; /* phy smart power down */
308 /* for ioport free */
314 struct work_struct fifo_stall_task;
315 struct work_struct phy_info_task;
325 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
327 extern struct net_device *e1000_get_hw_dev(struct e1000_hw *hw);
328 #define e_dbg(format, arg...) \
329 netdev_dbg(e1000_get_hw_dev(hw), format, ## arg)
330 #define e_err(msglvl, format, arg...) \
331 netif_err(adapter, msglvl, adapter->netdev, format, ## arg)
332 #define e_info(msglvl, format, arg...) \
333 netif_info(adapter, msglvl, adapter->netdev, format, ## arg)
334 #define e_warn(msglvl, format, arg...) \
335 netif_warn(adapter, msglvl, adapter->netdev, format, ## arg)
336 #define e_notice(msglvl, format, arg...) \
337 netif_notice(adapter, msglvl, adapter->netdev, format, ## arg)
338 #define e_dev_info(format, arg...) \
339 dev_info(&adapter->pdev->dev, format, ## arg)
340 #define e_dev_warn(format, arg...) \
341 dev_warn(&adapter->pdev->dev, format, ## arg)
342 #define e_dev_err(format, arg...) \
343 dev_err(&adapter->pdev->dev, format, ## arg)
345 extern char e1000_driver_name[];
346 extern const char e1000_driver_version[];
348 extern int e1000_up(struct e1000_adapter *adapter);
349 extern void e1000_down(struct e1000_adapter *adapter);
350 extern void e1000_reinit_locked(struct e1000_adapter *adapter);
351 extern void e1000_reset(struct e1000_adapter *adapter);
352 extern int e1000_set_spd_dplx(struct e1000_adapter *adapter, u16 spddplx);
353 extern int e1000_setup_all_rx_resources(struct e1000_adapter *adapter);
354 extern int e1000_setup_all_tx_resources(struct e1000_adapter *adapter);
355 extern void e1000_free_all_rx_resources(struct e1000_adapter *adapter);
356 extern void e1000_free_all_tx_resources(struct e1000_adapter *adapter);
357 extern void e1000_update_stats(struct e1000_adapter *adapter);
358 extern bool e1000_has_link(struct e1000_adapter *adapter);
359 extern void e1000_power_up_phy(struct e1000_adapter *);
360 extern void e1000_set_ethtool_ops(struct net_device *netdev);
361 extern void e1000_check_options(struct e1000_adapter *adapter);
362 extern char *e1000_get_hw_dev_name(struct e1000_hw *hw);
364 #endif /* _E1000_H_ */