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e1000e: cleanup several stats issues
[linux-2.6-block.git] / drivers / net / e1000e / e1000.h
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bc7f75fa
AK		 1/*******************************************************************************
2
3 Intel PRO/1000 Linux driver
ad68076e 4 Copyright(c) 1999 - 2008 Intel Corporation.
bc7f75fa
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
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/* Linux PRO/1000 Ethernet Driver main header file */
30
31#ifndef _E1000_H_
32#define _E1000_H_
33
34#include <linux/types.h>
35#include <linux/timer.h>
36#include <linux/workqueue.h>
37#include <linux/io.h>
38#include <linux/netdevice.h>
39
40#include "hw.h"
41
42struct e1000_info;
43
44#define ndev_printk(level, netdev, format, arg...) \
03ae221f 45 printk(level "%s: " format, (netdev)->name, ## arg)
bc7f75fa
AK		 46
47#ifdef DEBUG
48#define ndev_dbg(netdev, format, arg...) \
49 ndev_printk(KERN_DEBUG , netdev, format, ## arg)
50#else
51#define ndev_dbg(netdev, format, arg...) do { (void)(netdev); } while (0)
52#endif
53
54#define ndev_err(netdev, format, arg...) \
55 ndev_printk(KERN_ERR , netdev, format, ## arg)
56#define ndev_info(netdev, format, arg...) \
57 ndev_printk(KERN_INFO , netdev, format, ## arg)
58#define ndev_warn(netdev, format, arg...) \
59 ndev_printk(KERN_WARNING , netdev, format, ## arg)
60#define ndev_notice(netdev, format, arg...) \
61 ndev_printk(KERN_NOTICE , netdev, format, ## arg)
62
63
ad68076e 64/* Tx/Rx descriptor defines */
bc7f75fa
AK		 65#define E1000_DEFAULT_TXD 256
66#define E1000_MAX_TXD 4096
67#define E1000_MIN_TXD 80
68
69#define E1000_DEFAULT_RXD 256
70#define E1000_MAX_RXD 4096
71#define E1000_MIN_RXD 80
72
73/* Early Receive defines */
74#define E1000_ERT_2048 0x100
75
76#define E1000_FC_PAUSE_TIME 0x0680 /* 858 usec */
77
78/* How many Tx Descriptors do we need to call netif_wake_queue ? */
79/* How many Rx Buffers do we bundle into one write to the hardware ? */
80#define E1000_RX_BUFFER_WRITE 16 /* Must be power of 2 */
81
82#define AUTO_ALL_MODES 0
83#define E1000_EEPROM_APME 0x0400
84
85#define E1000_MNG_VLAN_NONE (-1)
86
87/* Number of packet split data buffers (not including the header buffer) */
88#define PS_PAGE_BUFFERS (MAX_PS_BUFFERS - 1)
89
90enum e1000_boards {
91 board_82571,
92 board_82572,
93 board_82573,
94 board_80003es2lan,
95 board_ich8lan,
96 board_ich9lan,
97};
98
99struct e1000_queue_stats {
100 u64 packets;
101 u64 bytes;
102};
103
104struct e1000_ps_page {
105 struct page *page;
106 u64 dma; /* must be u64 - written to hw */
107};
108
109/*
110 * wrappers around a pointer to a socket buffer,
111 * so a DMA handle can be stored along with the buffer
112 */
113struct e1000_buffer {
114 dma_addr_t dma;
115 struct sk_buff *skb;
116 union {
ad68076e 117 /* Tx */
bc7f75fa
AK		 118 struct {
119 unsigned long time_stamp;
120 u16 length;
121 u16 next_to_watch;
122 };
ad68076e 123 /* Rx */
47f44e40
AK		 124 /* arrays of page information for packet split */
125 struct e1000_ps_page *ps_pages;
bc7f75fa
AK		 126 };
127
128};
129
130struct e1000_ring {
131 void *desc; /* pointer to ring memory */
132 dma_addr_t dma; /* phys address of ring */
133 unsigned int size; /* length of ring in bytes */
134 unsigned int count; /* number of desc. in ring */
135
136 u16 next_to_use;
137 u16 next_to_clean;
138
139 u16 head;
140 u16 tail;
141
142 /* array of buffer information structs */
143 struct e1000_buffer *buffer_info;
144
bc7f75fa
AK		 145 struct sk_buff *rx_skb_top;
146
147 struct e1000_queue_stats stats;
148};
149
7c25769f
BA		 150/* PHY register snapshot values */
151struct e1000_phy_regs {
152 u16 bmcr; /* basic mode control register */
153 u16 bmsr; /* basic mode status register */
154 u16 advertise; /* auto-negotiation advertisement */
155 u16 lpa; /* link partner ability register */
156 u16 expansion; /* auto-negotiation expansion reg */
157 u16 ctrl1000; /* 1000BASE-T control register */
158 u16 stat1000; /* 1000BASE-T status register */
159 u16 estatus; /* extended status register */
160};
161
bc7f75fa
AK		 162/* board specific private data structure */
163struct e1000_adapter {
164 struct timer_list watchdog_timer;
165 struct timer_list phy_info_timer;
166 struct timer_list blink_timer;
167
168 struct work_struct reset_task;
169 struct work_struct watchdog_task;
170
171 const struct e1000_info *ei;
172
173 struct vlan_group *vlgrp;
174 u32 bd_number;
175 u32 rx_buffer_len;
176 u16 mng_vlan_id;
177 u16 link_speed;
178 u16 link_duplex;
179
180 spinlock_t tx_queue_lock; /* prevent concurrent tail updates */
181
bc7f75fa
AK		 182 /* track device up/down/testing state */
183 unsigned long state;
184
185 /* Interrupt Throttle Rate */
186 u32 itr;
187 u32 itr_setting;
188 u16 tx_itr;
189 u16 rx_itr;
190
191 /*
ad68076e 192 * Tx
bc7f75fa
AK		 193 */
194 struct e1000_ring *tx_ring /* One per active queue */
195 ____cacheline_aligned_in_smp;
196
197 struct napi_struct napi;
198
199 unsigned long tx_queue_len;
200 unsigned int restart_queue;
201 u32 txd_cmd;
202
203 bool detect_tx_hung;
204 u8 tx_timeout_factor;
205
206 u32 tx_int_delay;
207 u32 tx_abs_int_delay;
208
209 unsigned int total_tx_bytes;
210 unsigned int total_tx_packets;
211 unsigned int total_rx_bytes;
212 unsigned int total_rx_packets;
213
ad68076e 214 /* Tx stats */
bc7f75fa
AK		 215 u64 tpt_old;
216 u64 colc_old;
7c25769f
BA		 217 u32 gotc;
218 u64 gotc_old;
bc7f75fa
AK		 219 u32 tx_timeout_count;
220 u32 tx_fifo_head;
221 u32 tx_head_addr;
222 u32 tx_fifo_size;
223 u32 tx_dma_failed;
224
225 /*
ad68076e 226 * Rx
bc7f75fa
AK		 227 */
228 bool (*clean_rx) (struct e1000_adapter *adapter,
229 int *work_done, int work_to_do)
230 ____cacheline_aligned_in_smp;
231 void (*alloc_rx_buf) (struct e1000_adapter *adapter,
232 int cleaned_count);
233 struct e1000_ring *rx_ring;
234
235 u32 rx_int_delay;
236 u32 rx_abs_int_delay;
237
ad68076e 238 /* Rx stats */
bc7f75fa
AK		 239 u64 hw_csum_err;
240 u64 hw_csum_good;
241 u64 rx_hdr_split;
7c25769f
BA		 242 u32 gorc;
243 u64 gorc_old;
bc7f75fa
AK		 244 u32 alloc_rx_buff_failed;
245 u32 rx_dma_failed;
246
247 unsigned int rx_ps_pages;
248 u16 rx_ps_bsize0;
318a94d6
JK		 249 u32 max_frame_size;
250 u32 min_frame_size;
bc7f75fa
AK		 251
252 /* OS defined structs */
253 struct net_device *netdev;
254 struct pci_dev *pdev;
255 struct net_device_stats net_stats;
256 spinlock_t stats_lock; /* prevent concurrent stats updates */
257
258 /* structs defined in e1000_hw.h */
259 struct e1000_hw hw;
260
261 struct e1000_hw_stats stats;
262 struct e1000_phy_info phy_info;
263 struct e1000_phy_stats phy_stats;
264
7c25769f
BA		 265 /* Snapshot of PHY registers */
266 struct e1000_phy_regs phy_regs;
267
bc7f75fa
AK		 268 struct e1000_ring test_tx_ring;
269 struct e1000_ring test_rx_ring;
270 u32 test_icr;
271
272 u32 msg_enable;
273
274 u32 eeprom_wol;
275 u32 wol;
276 u32 pba;
277
318a94d6 278 bool fc_autoneg;
bc7f75fa
AK		 279
280 unsigned long led_status;
281
282 unsigned int flags;
283};
284
285struct e1000_info {
286 enum e1000_mac_type mac;
287 unsigned int flags;
288 u32 pba;
69e3fd8c 289 s32 (*get_variants)(struct e1000_adapter *);
bc7f75fa
AK		 290 struct e1000_mac_operations *mac_ops;
291 struct e1000_phy_operations *phy_ops;
292 struct e1000_nvm_operations *nvm_ops;
293};
294
295/* hardware capability, feature, and workaround flags */
296#define FLAG_HAS_AMT (1 << 0)
297#define FLAG_HAS_FLASH (1 << 1)
298#define FLAG_HAS_HW_VLAN_FILTER (1 << 2)
299#define FLAG_HAS_WOL (1 << 3)
300#define FLAG_HAS_ERT (1 << 4)
301#define FLAG_HAS_CTRLEXT_ON_LOAD (1 << 5)
302#define FLAG_HAS_SWSM_ON_LOAD (1 << 6)
303#define FLAG_HAS_JUMBO_FRAMES (1 << 7)
bc7f75fa
AK		 304#define FLAG_HAS_SMART_POWER_DOWN (1 << 11)
305#define FLAG_IS_QUAD_PORT_A (1 << 12)
306#define FLAG_IS_QUAD_PORT (1 << 13)
307#define FLAG_TIPG_MEDIUM_FOR_80003ESLAN (1 << 14)
308#define FLAG_APME_IN_WUC (1 << 15)
309#define FLAG_APME_IN_CTRL3 (1 << 16)
310#define FLAG_APME_CHECK_PORT_B (1 << 17)
311#define FLAG_DISABLE_FC_PAUSE_TIME (1 << 18)
312#define FLAG_NO_WAKE_UCAST (1 << 19)
313#define FLAG_MNG_PT_ENABLED (1 << 20)
314#define FLAG_RESET_OVERWRITES_LAA (1 << 21)
315#define FLAG_TARC_SPEED_MODE_BIT (1 << 22)
316#define FLAG_TARC_SET_BIT_ZERO (1 << 23)
317#define FLAG_RX_NEEDS_RESTART (1 << 24)
318#define FLAG_LSC_GIG_SPEED_DROP (1 << 25)
319#define FLAG_SMART_POWER_DOWN (1 << 26)
320#define FLAG_MSI_ENABLED (1 << 27)
321#define FLAG_RX_CSUM_ENABLED (1 << 28)
322#define FLAG_TSO_FORCE (1 << 29)
318a94d6 323#define FLAG_RX_RESTART_NOW (1 << 30)
bc7f75fa
AK		 324
325#define E1000_RX_DESC_PS(R, i) \
326 (&(((union e1000_rx_desc_packet_split *)((R).desc))[i]))
327#define E1000_GET_DESC(R, i, type) (&(((struct type *)((R).desc))[i]))
328#define E1000_RX_DESC(R, i) E1000_GET_DESC(R, i, e1000_rx_desc)
329#define E1000_TX_DESC(R, i) E1000_GET_DESC(R, i, e1000_tx_desc)
330#define E1000_CONTEXT_DESC(R, i) E1000_GET_DESC(R, i, e1000_context_desc)
331
332enum e1000_state_t {
333 __E1000_TESTING,
334 __E1000_RESETTING,
335 __E1000_DOWN
336};
337
338enum latency_range {
339 lowest_latency = 0,
340 low_latency = 1,
341 bulk_latency = 2,
342 latency_invalid = 255
343};
344
345extern char e1000e_driver_name[];
346extern const char e1000e_driver_version[];
347
348extern void e1000e_check_options(struct e1000_adapter *adapter);
349extern void e1000e_set_ethtool_ops(struct net_device *netdev);
350
351extern int e1000e_up(struct e1000_adapter *adapter);
352extern void e1000e_down(struct e1000_adapter *adapter);
353extern void e1000e_reinit_locked(struct e1000_adapter *adapter);
354extern void e1000e_reset(struct e1000_adapter *adapter);
355extern void e1000e_power_up_phy(struct e1000_adapter *adapter);
356extern int e1000e_setup_rx_resources(struct e1000_adapter *adapter);
357extern int e1000e_setup_tx_resources(struct e1000_adapter *adapter);
358extern void e1000e_free_rx_resources(struct e1000_adapter *adapter);
359extern void e1000e_free_tx_resources(struct e1000_adapter *adapter);
360extern void e1000e_update_stats(struct e1000_adapter *adapter);
361
362extern unsigned int copybreak;
363
364extern char *e1000e_get_hw_dev_name(struct e1000_hw *hw);
365
366extern struct e1000_info e1000_82571_info;
367extern struct e1000_info e1000_82572_info;
368extern struct e1000_info e1000_82573_info;
369extern struct e1000_info e1000_ich8_info;
370extern struct e1000_info e1000_ich9_info;
371extern struct e1000_info e1000_es2_info;
372
69e3fd8c 373extern s32 e1000e_read_pba_num(struct e1000_hw *hw, u32 *pba_num);
bc7f75fa
AK		 374
375extern s32 e1000e_commit_phy(struct e1000_hw *hw);
376
377extern bool e1000e_enable_mng_pass_thru(struct e1000_hw *hw);
378
379extern bool e1000e_get_laa_state_82571(struct e1000_hw *hw);
380extern void e1000e_set_laa_state_82571(struct e1000_hw *hw, bool state);
381
382extern void e1000e_set_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw,
383 bool state);
384extern void e1000e_igp3_phy_powerdown_workaround_ich8lan(struct e1000_hw *hw);
385extern void e1000e_gig_downshift_workaround_ich8lan(struct e1000_hw *hw);
386
387extern s32 e1000e_check_for_copper_link(struct e1000_hw *hw);
388extern s32 e1000e_check_for_fiber_link(struct e1000_hw *hw);
389extern s32 e1000e_check_for_serdes_link(struct e1000_hw *hw);
390extern s32 e1000e_cleanup_led_generic(struct e1000_hw *hw);
391extern s32 e1000e_led_on_generic(struct e1000_hw *hw);
392extern s32 e1000e_led_off_generic(struct e1000_hw *hw);
393extern s32 e1000e_get_bus_info_pcie(struct e1000_hw *hw);
394extern s32 e1000e_get_speed_and_duplex_copper(struct e1000_hw *hw, u16 *speed, u16 *duplex);
395extern s32 e1000e_get_speed_and_duplex_fiber_serdes(struct e1000_hw *hw, u16 *speed, u16 *duplex);
396extern s32 e1000e_disable_pcie_master(struct e1000_hw *hw);
397extern s32 e1000e_get_auto_rd_done(struct e1000_hw *hw);
398extern s32 e1000e_id_led_init(struct e1000_hw *hw);
399extern void e1000e_clear_hw_cntrs_base(struct e1000_hw *hw);
400extern s32 e1000e_setup_fiber_serdes_link(struct e1000_hw *hw);
401extern s32 e1000e_copper_link_setup_m88(struct e1000_hw *hw);
402extern s32 e1000e_copper_link_setup_igp(struct e1000_hw *hw);
403extern s32 e1000e_setup_link(struct e1000_hw *hw);
404extern void e1000e_clear_vfta(struct e1000_hw *hw);
405extern void e1000e_init_rx_addrs(struct e1000_hw *hw, u16 rar_count);
e2de3eb6
JK		 406extern void e1000e_update_mc_addr_list_generic(struct e1000_hw *hw,
407 u8 *mc_addr_list,
408 u32 mc_addr_count,
409 u32 rar_used_count,
410 u32 rar_count);
bc7f75fa
AK		 411extern void e1000e_rar_set(struct e1000_hw *hw, u8 *addr, u32 index);
412extern s32 e1000e_set_fc_watermarks(struct e1000_hw *hw);
413extern void e1000e_set_pcie_no_snoop(struct e1000_hw *hw, u32 no_snoop);
414extern s32 e1000e_get_hw_semaphore(struct e1000_hw *hw);
415extern s32 e1000e_valid_led_default(struct e1000_hw *hw, u16 *data);
416extern void e1000e_config_collision_dist(struct e1000_hw *hw);
417extern s32 e1000e_config_fc_after_link_up(struct e1000_hw *hw);
418extern s32 e1000e_force_mac_fc(struct e1000_hw *hw);
419extern s32 e1000e_blink_led(struct e1000_hw *hw);
420extern void e1000e_write_vfta(struct e1000_hw *hw, u32 offset, u32 value);
421extern void e1000e_reset_adaptive(struct e1000_hw *hw);
422extern void e1000e_update_adaptive(struct e1000_hw *hw);
423
424extern s32 e1000e_setup_copper_link(struct e1000_hw *hw);
425extern s32 e1000e_get_phy_id(struct e1000_hw *hw);
426extern void e1000e_put_hw_semaphore(struct e1000_hw *hw);
427extern s32 e1000e_check_reset_block_generic(struct e1000_hw *hw);
428extern s32 e1000e_phy_force_speed_duplex_igp(struct e1000_hw *hw);
429extern s32 e1000e_get_cable_length_igp_2(struct e1000_hw *hw);
430extern s32 e1000e_get_phy_info_igp(struct e1000_hw *hw);
431extern s32 e1000e_read_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 *data);
432extern s32 e1000e_phy_hw_reset_generic(struct e1000_hw *hw);
433extern s32 e1000e_set_d3_lplu_state(struct e1000_hw *hw, bool active);
434extern s32 e1000e_write_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 data);
435extern s32 e1000e_phy_sw_reset(struct e1000_hw *hw);
436extern s32 e1000e_phy_force_speed_duplex_m88(struct e1000_hw *hw);
437extern s32 e1000e_get_cfg_done(struct e1000_hw *hw);
438extern s32 e1000e_get_cable_length_m88(struct e1000_hw *hw);
439extern s32 e1000e_get_phy_info_m88(struct e1000_hw *hw);
440extern s32 e1000e_read_phy_reg_m88(struct e1000_hw *hw, u32 offset, u16 *data);
441extern s32 e1000e_write_phy_reg_m88(struct e1000_hw *hw, u32 offset, u16 data);
442extern enum e1000_phy_type e1000e_get_phy_type_from_id(u32 phy_id);
443extern void e1000e_phy_force_speed_duplex_setup(struct e1000_hw *hw, u16 *phy_ctrl);
444extern s32 e1000e_write_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 data);
445extern s32 e1000e_read_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 *data);
446extern s32 e1000e_phy_has_link_generic(struct e1000_hw *hw, u32 iterations,
447 u32 usec_interval, bool *success);
448extern s32 e1000e_phy_reset_dsp(struct e1000_hw *hw);
449extern s32 e1000e_check_downshift(struct e1000_hw *hw);
450
451static inline s32 e1000_phy_hw_reset(struct e1000_hw *hw)
452{
453 return hw->phy.ops.reset_phy(hw);
454}
455
456static inline s32 e1000_check_reset_block(struct e1000_hw *hw)
457{
458 return hw->phy.ops.check_reset_block(hw);
459}
460
461static inline s32 e1e_rphy(struct e1000_hw *hw, u32 offset, u16 *data)
462{
463 return hw->phy.ops.read_phy_reg(hw, offset, data);
464}
465
466static inline s32 e1e_wphy(struct e1000_hw *hw, u32 offset, u16 data)
467{
468 return hw->phy.ops.write_phy_reg(hw, offset, data);
469}
470
471static inline s32 e1000_get_cable_length(struct e1000_hw *hw)
472{
473 return hw->phy.ops.get_cable_length(hw);
474}
475
476extern s32 e1000e_acquire_nvm(struct e1000_hw *hw);
477extern s32 e1000e_write_nvm_spi(struct e1000_hw *hw, u16 offset, u16 words, u16 *data);
478extern s32 e1000e_update_nvm_checksum_generic(struct e1000_hw *hw);
479extern s32 e1000e_poll_eerd_eewr_done(struct e1000_hw *hw, int ee_reg);
bc7f75fa
AK		 480extern s32 e1000e_read_nvm_eerd(struct e1000_hw *hw, u16 offset, u16 words, u16 *data);
481extern s32 e1000e_validate_nvm_checksum_generic(struct e1000_hw *hw);
482extern void e1000e_release_nvm(struct e1000_hw *hw);
483extern void e1000e_reload_nvm(struct e1000_hw *hw);
484extern s32 e1000e_read_mac_addr(struct e1000_hw *hw);
485
486static inline s32 e1000_validate_nvm_checksum(struct e1000_hw *hw)
487{
488 return hw->nvm.ops.validate_nvm(hw);
489}
490
491static inline s32 e1000e_update_nvm_checksum(struct e1000_hw *hw)
492{
493 return hw->nvm.ops.update_nvm(hw);
494}
495
496static inline s32 e1000_read_nvm(struct e1000_hw *hw, u16 offset, u16 words, u16 *data)
497{
498 return hw->nvm.ops.read_nvm(hw, offset, words, data);
499}
500
501static inline s32 e1000_write_nvm(struct e1000_hw *hw, u16 offset, u16 words, u16 *data)
502{
503 return hw->nvm.ops.write_nvm(hw, offset, words, data);
504}
505
506static inline s32 e1000_get_phy_info(struct e1000_hw *hw)
507{
508 return hw->phy.ops.get_phy_info(hw);
509}
510
511extern bool e1000e_check_mng_mode(struct e1000_hw *hw);
512extern bool e1000e_enable_tx_pkt_filtering(struct e1000_hw *hw);
513extern s32 e1000e_mng_write_dhcp_info(struct e1000_hw *hw, u8 *buffer, u16 length);
514
515static inline u32 __er32(struct e1000_hw *hw, unsigned long reg)
516{
517 return readl(hw->hw_addr + reg);
518}
519
520static inline void __ew32(struct e1000_hw *hw, unsigned long reg, u32 val)
521{
522 writel(val, hw->hw_addr + reg);
523}
524
525#endif /* _E1000_H_ */
Linux 6.x block layer and io_uring tree(s)