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1/* SPDX-License-Identifier: GPL-2.0 */
2/* Copyright(c) 1999 - 2018 Intel Corporation. */
3
4/* Linux PRO/1000 Ethernet Driver main header file */
5
6#ifndef _E1000_H_
7#define _E1000_H_
8
9#include <linux/bitops.h>
10#include <linux/types.h>
11#include <linux/timer.h>
12#include <linux/workqueue.h>
13#include <linux/io.h>
14#include <linux/netdevice.h>
15#include <linux/pci.h>
16#include <linux/crc32.h>
17#include <linux/if_vlan.h>
18#include <linux/timecounter.h>
19#include <linux/net_tstamp.h>
20#include <linux/ptp_clock_kernel.h>
21#include <linux/ptp_classify.h>
22#include <linux/mii.h>
23#include <linux/mdio.h>
24#include <linux/mutex.h>
25#include <linux/pm_qos.h>
26#include "hw.h"
27
28struct e1000_info;
29
30#define e_dbg(format, arg...) \
31 netdev_dbg(hw->adapter->netdev, format, ## arg)
32#define e_err(format, arg...) \
33 netdev_err(adapter->netdev, format, ## arg)
34#define e_info(format, arg...) \
35 netdev_info(adapter->netdev, format, ## arg)
36#define e_warn(format, arg...) \
37 netdev_warn(adapter->netdev, format, ## arg)
38#define e_notice(format, arg...) \
39 netdev_notice(adapter->netdev, format, ## arg)
40
41/* Interrupt modes, as used by the IntMode parameter */
42#define E1000E_INT_MODE_LEGACY 0
43#define E1000E_INT_MODE_MSI 1
44#define E1000E_INT_MODE_MSIX 2
45
46/* Tx/Rx descriptor defines */
47#define E1000_DEFAULT_TXD 256
48#define E1000_MAX_TXD 4096
49#define E1000_MIN_TXD 64
50
51#define E1000_DEFAULT_RXD 256
52#define E1000_MAX_RXD 4096
53#define E1000_MIN_RXD 64
54
55#define E1000_MIN_ITR_USECS 10 /* 100000 irq/sec */
56#define E1000_MAX_ITR_USECS 10000 /* 100 irq/sec */
57
58#define E1000_FC_PAUSE_TIME 0x0680 /* 858 usec */
59
60/* How many Tx Descriptors do we need to call netif_wake_queue ? */
61/* How many Rx Buffers do we bundle into one write to the hardware ? */
62#define E1000_RX_BUFFER_WRITE 16 /* Must be power of 2 */
63
64#define AUTO_ALL_MODES 0
65#define E1000_EEPROM_APME 0x0400
66
67#define E1000_MNG_VLAN_NONE (-1)
68
69#define DEFAULT_JUMBO 9234
70
71/* Time to wait before putting the device into D3 if there's no link (in ms). */
72#define LINK_TIMEOUT 100
73
74/* Count for polling __E1000_RESET condition every 10-20msec.
75 * Experimentation has shown the reset can take approximately 210msec.
76 */
77#define E1000_CHECK_RESET_COUNT 25
78
79#define PCICFG_DESC_RING_STATUS 0xe4
80#define FLUSH_DESC_REQUIRED 0x100
81
82/* in the case of WTHRESH, it appears at least the 82571/2 hardware
83 * writes back 4 descriptors when WTHRESH=5, and 3 descriptors when
84 * WTHRESH=4, so a setting of 5 gives the most efficient bus
85 * utilization but to avoid possible Tx stalls, set it to 1
86 */
87#define E1000_TXDCTL_DMA_BURST_ENABLE \
88 (E1000_TXDCTL_GRAN | /* set descriptor granularity */ \
89 E1000_TXDCTL_COUNT_DESC | \
90 (1u << 16) | /* wthresh must be +1 more than desired */\
91 (1u << 8) | /* hthresh */ \
92 0x1f) /* pthresh */
93
94#define E1000_RXDCTL_DMA_BURST_ENABLE \
95 (0x01000000 | /* set descriptor granularity */ \
96 (4u << 16) | /* set writeback threshold */ \
97 (4u << 8) | /* set prefetch threshold */ \
98 0x20) /* set hthresh */
99
100#define E1000_TIDV_FPD BIT(31)
101#define E1000_RDTR_FPD BIT(31)
102
103enum e1000_boards {
104 board_82571,
105 board_82572,
106 board_82573,
107 board_82574,
108 board_82583,
109 board_80003es2lan,
110 board_ich8lan,
111 board_ich9lan,
112 board_ich10lan,
113 board_pchlan,
114 board_pch2lan,
115 board_pch_lpt,
116 board_pch_spt,
117 board_pch_cnp,
118 board_pch_tgp,
119 board_pch_adp,
120 board_pch_mtp
121};
122
123struct e1000_ps_page {
124 struct page *page;
125 u64 dma; /* must be u64 - written to hw */
126};
127
128/* wrappers around a pointer to a socket buffer,
129 * so a DMA handle can be stored along with the buffer
130 */
131struct e1000_buffer {
132 dma_addr_t dma;
133 struct sk_buff *skb;
134 union {
135 /* Tx */
136 struct {
137 unsigned long time_stamp;
138 u16 length;
139 u16 next_to_watch;
140 unsigned int segs;
141 unsigned int bytecount;
142 u16 mapped_as_page;
143 };
144 /* Rx */
145 struct {
146 /* arrays of page information for packet split */
147 struct e1000_ps_page *ps_pages;
148 struct page *page;
149 };
150 };
151};
152
153struct e1000_ring {
154 struct e1000_adapter *adapter; /* back pointer to adapter */
155 void *desc; /* pointer to ring memory */
156 dma_addr_t dma; /* phys address of ring */
157 unsigned int size; /* length of ring in bytes */
158 unsigned int count; /* number of desc. in ring */
159
160 u16 next_to_use;
161 u16 next_to_clean;
162
163 void __iomem *head;
164 void __iomem *tail;
165
166 /* array of buffer information structs */
167 struct e1000_buffer *buffer_info;
168
169 char name[IFNAMSIZ + 5];
170 u32 ims_val;
171 u32 itr_val;
172 void __iomem *itr_register;
173 int set_itr;
174
175 struct sk_buff *rx_skb_top;
176};
177
178/* PHY register snapshot values */
179struct e1000_phy_regs {
180 u16 bmcr; /* basic mode control register */
181 u16 bmsr; /* basic mode status register */
182 u16 advertise; /* auto-negotiation advertisement */
183 u16 lpa; /* link partner ability register */
184 u16 expansion; /* auto-negotiation expansion reg */
185 u16 ctrl1000; /* 1000BASE-T control register */
186 u16 stat1000; /* 1000BASE-T status register */
187 u16 estatus; /* extended status register */
188};
189
190/* board specific private data structure */
191struct e1000_adapter {
192 struct timer_list watchdog_timer;
193 struct timer_list phy_info_timer;
194 struct timer_list blink_timer;
195
196 struct work_struct reset_task;
197 struct work_struct watchdog_task;
198
199 const struct e1000_info *ei;
200
201 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
202 u32 bd_number;
203 u32 rx_buffer_len;
204 u16 mng_vlan_id;
205 u16 link_speed;
206 u16 link_duplex;
207 u16 eeprom_vers;
208
209 /* track device up/down/testing state */
210 unsigned long state;
211
212 /* Interrupt Throttle Rate */
213 u32 itr;
214 u32 itr_setting;
215 u16 tx_itr;
216 u16 rx_itr;
217
218 /* Tx - one ring per active queue */
219 struct e1000_ring *tx_ring ____cacheline_aligned_in_smp;
220 u32 tx_fifo_limit;
221
222 struct napi_struct napi;
223
224 unsigned int uncorr_errors; /* uncorrectable ECC errors */
225 unsigned int corr_errors; /* correctable ECC errors */
226 unsigned int restart_queue;
227 u32 txd_cmd;
228
229 bool detect_tx_hung;
230 bool tx_hang_recheck;
231 u8 tx_timeout_factor;
232
233 u32 tx_int_delay;
234 u32 tx_abs_int_delay;
235
236 unsigned int total_tx_bytes;
237 unsigned int total_tx_packets;
238 unsigned int total_rx_bytes;
239 unsigned int total_rx_packets;
240
241 /* Tx stats */
242 u64 tpt_old;
243 u64 colc_old;
244 u32 gotc;
245 u64 gotc_old;
246 u32 tx_timeout_count;
247 u32 tx_fifo_head;
248 u32 tx_head_addr;
249 u32 tx_fifo_size;
250 u32 tx_dma_failed;
251 u32 tx_hwtstamp_timeouts;
252 u32 tx_hwtstamp_skipped;
253
254 /* Rx */
255 bool (*clean_rx)(struct e1000_ring *ring, int *work_done,
256 int work_to_do) ____cacheline_aligned_in_smp;
257 void (*alloc_rx_buf)(struct e1000_ring *ring, int cleaned_count,
258 gfp_t gfp);
259 struct e1000_ring *rx_ring;
260
261 u32 rx_int_delay;
262 u32 rx_abs_int_delay;
263
264 /* Rx stats */
265 u64 hw_csum_err;
266 u64 hw_csum_good;
267 u64 rx_hdr_split;
268 u32 gorc;
269 u64 gorc_old;
270 u32 alloc_rx_buff_failed;
271 u32 rx_dma_failed;
272 u32 rx_hwtstamp_cleared;
273
274 unsigned int rx_ps_pages;
275 u16 rx_ps_bsize0;
276 u32 max_frame_size;
277 u32 min_frame_size;
278
279 /* OS defined structs */
280 struct net_device *netdev;
281 struct pci_dev *pdev;
282
283 /* structs defined in e1000_hw.h */
284 struct e1000_hw hw;
285
286 spinlock_t stats64_lock; /* protects statistics counters */
287 struct e1000_hw_stats stats;
288 struct e1000_phy_info phy_info;
289 struct e1000_phy_stats phy_stats;
290
291 /* Snapshot of PHY registers */
292 struct e1000_phy_regs phy_regs;
293
294 struct e1000_ring test_tx_ring;
295 struct e1000_ring test_rx_ring;
296 u32 test_icr;
297
298 u32 msg_enable;
299 unsigned int num_vectors;
300 struct msix_entry *msix_entries;
301 int int_mode;
302 u32 eiac_mask;
303
304 u32 eeprom_wol;
305 u32 wol;
306 u32 pba;
307 u32 max_hw_frame_size;
308
309 bool fc_autoneg;
310
311 unsigned int flags;
312 unsigned int flags2;
313 struct work_struct downshift_task;
314 struct work_struct update_phy_task;
315 struct work_struct print_hang_task;
316
317 int phy_hang_count;
318
319 u16 tx_ring_count;
320 u16 rx_ring_count;
321
322 struct hwtstamp_config hwtstamp_config;
323 struct delayed_work systim_overflow_work;
324 struct sk_buff *tx_hwtstamp_skb;
325 unsigned long tx_hwtstamp_start;
326 struct work_struct tx_hwtstamp_work;
327 spinlock_t systim_lock; /* protects SYSTIML/H regsters */
328 struct cyclecounter cc;
329 struct timecounter tc;
330 struct ptp_clock *ptp_clock;
331 struct ptp_clock_info ptp_clock_info;
332 struct pm_qos_request pm_qos_req;
333 long ptp_delta;
334
335 u16 eee_advert;
336};
337
338struct e1000_info {
339 enum e1000_mac_type mac;
340 unsigned int flags;
341 unsigned int flags2;
342 u32 pba;
343 u32 max_hw_frame_size;
344 s32 (*get_variants)(struct e1000_adapter *);
345 const struct e1000_mac_operations *mac_ops;
346 const struct e1000_phy_operations *phy_ops;
347 const struct e1000_nvm_operations *nvm_ops;
348};
349
350s32 e1000e_get_base_timinca(struct e1000_adapter *adapter, u32 *timinca);
351
352/* The system time is maintained by a 64-bit counter comprised of the 32-bit
353 * SYSTIMH and SYSTIML registers. How the counter increments (and therefore
354 * its resolution) is based on the contents of the TIMINCA register - it
355 * increments every incperiod (bits 31:24) clock ticks by incvalue (bits 23:0).
356 * For the best accuracy, the incperiod should be as small as possible. The
357 * incvalue is scaled by a factor as large as possible (while still fitting
358 * in bits 23:0) so that relatively small clock corrections can be made.
359 *
360 * As a result, a shift of INCVALUE_SHIFT_n is used to fit a value of
361 * INCVALUE_n into the TIMINCA register allowing 32+8+(24-INCVALUE_SHIFT_n)
362 * bits to count nanoseconds leaving the rest for fractional nonseconds.
363 *
364 * Any given INCVALUE also has an associated maximum adjustment value. This
365 * maximum adjustment value is the largest increase (or decrease) which can be
366 * safely applied without overflowing the INCVALUE. Since INCVALUE has
367 * a maximum range of 24 bits, its largest value is 0xFFFFFF.
368 *
369 * To understand where the maximum value comes from, consider the following
370 * equation:
371 *
372 * new_incval = base_incval + (base_incval * adjustment) / 1billion
373 *
374 * To avoid overflow that means:
375 * max_incval = base_incval + (base_incval * max_adj) / billion
376 *
377 * Re-arranging:
378 * max_adj = floor(((max_incval - base_incval) * 1billion) / 1billion)
379 */
380#define INCVALUE_96MHZ 125
381#define INCVALUE_SHIFT_96MHZ 17
382#define INCPERIOD_SHIFT_96MHZ 2
383#define INCPERIOD_96MHZ (12 >> INCPERIOD_SHIFT_96MHZ)
384#define MAX_PPB_96MHZ 23999900 /* 23,999,900 ppb */
385
386#define INCVALUE_25MHZ 40
387#define INCVALUE_SHIFT_25MHZ 18
388#define INCPERIOD_25MHZ 1
389#define MAX_PPB_25MHZ 599999900 /* 599,999,900 ppb */
390
391#define INCVALUE_24MHZ 125
392#define INCVALUE_SHIFT_24MHZ 14
393#define INCPERIOD_24MHZ 3
394#define MAX_PPB_24MHZ 999999999 /* 999,999,999 ppb */
395
396#define INCVALUE_38400KHZ 26
397#define INCVALUE_SHIFT_38400KHZ 19
398#define INCPERIOD_38400KHZ 1
399#define MAX_PPB_38400KHZ 230769100 /* 230,769,100 ppb */
400
401/* Another drawback of scaling the incvalue by a large factor is the
402 * 64-bit SYSTIM register overflows more quickly. This is dealt with
403 * by simply reading the clock before it overflows.
404 *
405 * Clock ns bits Overflows after
406 * ~~~~~~ ~~~~~~~ ~~~~~~~~~~~~~~~
407 * 96MHz 47-bit 2^(47-INCPERIOD_SHIFT_96MHz) / 10^9 / 3600 = 9.77 hrs
408 * 25MHz 46-bit 2^46 / 10^9 / 3600 = 19.55 hours
409 */
410#define E1000_SYSTIM_OVERFLOW_PERIOD (HZ * 60 * 60 * 4)
411#define E1000_MAX_82574_SYSTIM_REREADS 50
412#define E1000_82574_SYSTIM_EPSILON (1ULL << 35ULL)
413
414/* hardware capability, feature, and workaround flags */
415#define FLAG_HAS_AMT BIT(0)
416#define FLAG_HAS_FLASH BIT(1)
417#define FLAG_HAS_HW_VLAN_FILTER BIT(2)
418#define FLAG_HAS_WOL BIT(3)
419/* reserved BIT(4) */
420#define FLAG_HAS_CTRLEXT_ON_LOAD BIT(5)
421#define FLAG_HAS_SWSM_ON_LOAD BIT(6)
422#define FLAG_HAS_JUMBO_FRAMES BIT(7)
423#define FLAG_READ_ONLY_NVM BIT(8)
424#define FLAG_IS_ICH BIT(9)
425#define FLAG_HAS_MSIX BIT(10)
426#define FLAG_HAS_SMART_POWER_DOWN BIT(11)
427#define FLAG_IS_QUAD_PORT_A BIT(12)
428#define FLAG_IS_QUAD_PORT BIT(13)
429#define FLAG_HAS_HW_TIMESTAMP BIT(14)
430#define FLAG_APME_IN_WUC BIT(15)
431#define FLAG_APME_IN_CTRL3 BIT(16)
432#define FLAG_APME_CHECK_PORT_B BIT(17)
433#define FLAG_DISABLE_FC_PAUSE_TIME BIT(18)
434#define FLAG_NO_WAKE_UCAST BIT(19)
435#define FLAG_MNG_PT_ENABLED BIT(20)
436#define FLAG_RESET_OVERWRITES_LAA BIT(21)
437#define FLAG_TARC_SPEED_MODE_BIT BIT(22)
438#define FLAG_TARC_SET_BIT_ZERO BIT(23)
439#define FLAG_RX_NEEDS_RESTART BIT(24)
440#define FLAG_LSC_GIG_SPEED_DROP BIT(25)
441#define FLAG_SMART_POWER_DOWN BIT(26)
442#define FLAG_MSI_ENABLED BIT(27)
443/* reserved BIT(28) */
444#define FLAG_TSO_FORCE BIT(29)
445#define FLAG_RESTART_NOW BIT(30)
446#define FLAG_MSI_TEST_FAILED BIT(31)
447
448#define FLAG2_CRC_STRIPPING BIT(0)
449#define FLAG2_HAS_PHY_WAKEUP BIT(1)
450#define FLAG2_IS_DISCARDING BIT(2)
451#define FLAG2_DISABLE_ASPM_L1 BIT(3)
452#define FLAG2_HAS_PHY_STATS BIT(4)
453#define FLAG2_HAS_EEE BIT(5)
454#define FLAG2_DMA_BURST BIT(6)
455#define FLAG2_DISABLE_ASPM_L0S BIT(7)
456#define FLAG2_DISABLE_AIM BIT(8)
457#define FLAG2_CHECK_PHY_HANG BIT(9)
458#define FLAG2_NO_DISABLE_RX BIT(10)
459#define FLAG2_PCIM2PCI_ARBITER_WA BIT(11)
460#define FLAG2_DFLT_CRC_STRIPPING BIT(12)
461#define FLAG2_CHECK_RX_HWTSTAMP BIT(13)
462#define FLAG2_CHECK_SYSTIM_OVERFLOW BIT(14)
463#define FLAG2_ENABLE_S0IX_FLOWS BIT(15)
464
465#define E1000_RX_DESC_PS(R, i) \
466 (&(((union e1000_rx_desc_packet_split *)((R).desc))[i]))
467#define E1000_RX_DESC_EXT(R, i) \
468 (&(((union e1000_rx_desc_extended *)((R).desc))[i]))
469#define E1000_GET_DESC(R, i, type) (&(((struct type *)((R).desc))[i]))
470#define E1000_TX_DESC(R, i) E1000_GET_DESC(R, i, e1000_tx_desc)
471#define E1000_CONTEXT_DESC(R, i) E1000_GET_DESC(R, i, e1000_context_desc)
472
473enum e1000_state_t {
474 __E1000_TESTING,
475 __E1000_RESETTING,
476 __E1000_ACCESS_SHARED_RESOURCE,
477 __E1000_DOWN
478};
479
480enum latency_range {
481 lowest_latency = 0,
482 low_latency = 1,
483 bulk_latency = 2,
484 latency_invalid = 255
485};
486
487extern char e1000e_driver_name[];
488
489void e1000e_check_options(struct e1000_adapter *adapter);
490void e1000e_set_ethtool_ops(struct net_device *netdev);
491
492int e1000e_open(struct net_device *netdev);
493int e1000e_close(struct net_device *netdev);
494void e1000e_up(struct e1000_adapter *adapter);
495void e1000e_down(struct e1000_adapter *adapter, bool reset);
496void e1000e_reinit_locked(struct e1000_adapter *adapter);
497void e1000e_reset(struct e1000_adapter *adapter);
498void e1000e_power_up_phy(struct e1000_adapter *adapter);
499int e1000e_setup_rx_resources(struct e1000_ring *ring);
500int e1000e_setup_tx_resources(struct e1000_ring *ring);
501void e1000e_free_rx_resources(struct e1000_ring *ring);
502void e1000e_free_tx_resources(struct e1000_ring *ring);
503void e1000e_get_stats64(struct net_device *netdev,
504 struct rtnl_link_stats64 *stats);
505void e1000e_set_interrupt_capability(struct e1000_adapter *adapter);
506void e1000e_reset_interrupt_capability(struct e1000_adapter *adapter);
507void e1000e_get_hw_control(struct e1000_adapter *adapter);
508void e1000e_release_hw_control(struct e1000_adapter *adapter);
509void e1000e_write_itr(struct e1000_adapter *adapter, u32 itr);
510
511extern unsigned int copybreak;
512
513extern const struct e1000_info e1000_82571_info;
514extern const struct e1000_info e1000_82572_info;
515extern const struct e1000_info e1000_82573_info;
516extern const struct e1000_info e1000_82574_info;
517extern const struct e1000_info e1000_82583_info;
518extern const struct e1000_info e1000_ich8_info;
519extern const struct e1000_info e1000_ich9_info;
520extern const struct e1000_info e1000_ich10_info;
521extern const struct e1000_info e1000_pch_info;
522extern const struct e1000_info e1000_pch2_info;
523extern const struct e1000_info e1000_pch_lpt_info;
524extern const struct e1000_info e1000_pch_spt_info;
525extern const struct e1000_info e1000_pch_cnp_info;
526extern const struct e1000_info e1000_pch_tgp_info;
527extern const struct e1000_info e1000_pch_adp_info;
528extern const struct e1000_info e1000_pch_mtp_info;
529extern const struct e1000_info e1000_es2_info;
530
531void e1000e_ptp_init(struct e1000_adapter *adapter);
532void e1000e_ptp_remove(struct e1000_adapter *adapter);
533
534u64 e1000e_read_systim(struct e1000_adapter *adapter,
535 struct ptp_system_timestamp *sts);
536
537static inline s32 e1000_phy_hw_reset(struct e1000_hw *hw)
538{
539 return hw->phy.ops.reset(hw);
540}
541
542static inline s32 e1e_rphy(struct e1000_hw *hw, u32 offset, u16 *data)
543{
544 return hw->phy.ops.read_reg(hw, offset, data);
545}
546
547static inline s32 e1e_rphy_locked(struct e1000_hw *hw, u32 offset, u16 *data)
548{
549 return hw->phy.ops.read_reg_locked(hw, offset, data);
550}
551
552static inline s32 e1e_wphy(struct e1000_hw *hw, u32 offset, u16 data)
553{
554 return hw->phy.ops.write_reg(hw, offset, data);
555}
556
557static inline s32 e1e_wphy_locked(struct e1000_hw *hw, u32 offset, u16 data)
558{
559 return hw->phy.ops.write_reg_locked(hw, offset, data);
560}
561
562void e1000e_reload_nvm_generic(struct e1000_hw *hw);
563
564static inline s32 e1000e_read_mac_addr(struct e1000_hw *hw)
565{
566 if (hw->mac.ops.read_mac_addr)
567 return hw->mac.ops.read_mac_addr(hw);
568
569 return e1000_read_mac_addr_generic(hw);
570}
571
572static inline s32 e1000_validate_nvm_checksum(struct e1000_hw *hw)
573{
574 return hw->nvm.ops.validate(hw);
575}
576
577static inline s32 e1000e_update_nvm_checksum(struct e1000_hw *hw)
578{
579 return hw->nvm.ops.update(hw);
580}
581
582static inline s32 e1000_read_nvm(struct e1000_hw *hw, u16 offset, u16 words,
583 u16 *data)
584{
585 return hw->nvm.ops.read(hw, offset, words, data);
586}
587
588static inline s32 e1000_write_nvm(struct e1000_hw *hw, u16 offset, u16 words,
589 u16 *data)
590{
591 return hw->nvm.ops.write(hw, offset, words, data);
592}
593
594static inline s32 e1000_get_phy_info(struct e1000_hw *hw)
595{
596 return hw->phy.ops.get_info(hw);
597}
598
599static inline u32 __er32(struct e1000_hw *hw, unsigned long reg)
600{
601 return readl(hw->hw_addr + reg);
602}
603
604#define er32(reg) __er32(hw, E1000_##reg)
605
606void __ew32(struct e1000_hw *hw, unsigned long reg, u32 val);
607
608#define ew32(reg, val) __ew32(hw, E1000_##reg, (val))
609
610#define e1e_flush() er32(STATUS)
611
612#define E1000_WRITE_REG_ARRAY(a, reg, offset, value) \
613 (__ew32((a), (reg + ((offset) << 2)), (value)))
614
615#define E1000_READ_REG_ARRAY(a, reg, offset) \
616 (readl((a)->hw_addr + reg + ((offset) << 2)))
617
618#endif /* _E1000_H_ */
1/*******************************************************************************
2
3 Intel PRO/1000 Linux driver
4 Copyright(c) 1999 - 2012 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/* Linux PRO/1000 Ethernet Driver main header file */
30
31#ifndef _E1000_H_
32#define _E1000_H_
33
34#include <linux/bitops.h>
35#include <linux/types.h>
36#include <linux/timer.h>
37#include <linux/workqueue.h>
38#include <linux/io.h>
39#include <linux/netdevice.h>
40#include <linux/pci.h>
41#include <linux/pci-aspm.h>
42#include <linux/crc32.h>
43#include <linux/if_vlan.h>
44
45#include "hw.h"
46
47struct e1000_info;
48
49#define e_dbg(format, arg...) \
50 netdev_dbg(hw->adapter->netdev, format, ## arg)
51#define e_err(format, arg...) \
52 netdev_err(adapter->netdev, format, ## arg)
53#define e_info(format, arg...) \
54 netdev_info(adapter->netdev, format, ## arg)
55#define e_warn(format, arg...) \
56 netdev_warn(adapter->netdev, format, ## arg)
57#define e_notice(format, arg...) \
58 netdev_notice(adapter->netdev, format, ## arg)
59
60
61/* Interrupt modes, as used by the IntMode parameter */
62#define E1000E_INT_MODE_LEGACY 0
63#define E1000E_INT_MODE_MSI 1
64#define E1000E_INT_MODE_MSIX 2
65
66/* Tx/Rx descriptor defines */
67#define E1000_DEFAULT_TXD 256
68#define E1000_MAX_TXD 4096
69#define E1000_MIN_TXD 64
70
71#define E1000_DEFAULT_RXD 256
72#define E1000_MAX_RXD 4096
73#define E1000_MIN_RXD 64
74
75#define E1000_MIN_ITR_USECS 10 /* 100000 irq/sec */
76#define E1000_MAX_ITR_USECS 10000 /* 100 irq/sec */
77
78/* Early Receive defines */
79#define E1000_ERT_2048 0x100
80
81#define E1000_FC_PAUSE_TIME 0x0680 /* 858 usec */
82
83/* How many Tx Descriptors do we need to call netif_wake_queue ? */
84/* How many Rx Buffers do we bundle into one write to the hardware ? */
85#define E1000_RX_BUFFER_WRITE 16 /* Must be power of 2 */
86
87#define AUTO_ALL_MODES 0
88#define E1000_EEPROM_APME 0x0400
89
90#define E1000_MNG_VLAN_NONE (-1)
91
92/* Number of packet split data buffers (not including the header buffer) */
93#define PS_PAGE_BUFFERS (MAX_PS_BUFFERS - 1)
94
95#define DEFAULT_JUMBO 9234
96
97/* BM/HV Specific Registers */
98#define BM_PORT_CTRL_PAGE 769
99
100#define PHY_UPPER_SHIFT 21
101#define BM_PHY_REG(page, reg) \
102 (((reg) & MAX_PHY_REG_ADDRESS) |\
103 (((page) & 0xFFFF) << PHY_PAGE_SHIFT) |\
104 (((reg) & ~MAX_PHY_REG_ADDRESS) << (PHY_UPPER_SHIFT - PHY_PAGE_SHIFT)))
105
106/* PHY Wakeup Registers and defines */
107#define BM_PORT_GEN_CFG PHY_REG(BM_PORT_CTRL_PAGE, 17)
108#define BM_RCTL PHY_REG(BM_WUC_PAGE, 0)
109#define BM_WUC PHY_REG(BM_WUC_PAGE, 1)
110#define BM_WUFC PHY_REG(BM_WUC_PAGE, 2)
111#define BM_WUS PHY_REG(BM_WUC_PAGE, 3)
112#define BM_RAR_L(_i) (BM_PHY_REG(BM_WUC_PAGE, 16 + ((_i) << 2)))
113#define BM_RAR_M(_i) (BM_PHY_REG(BM_WUC_PAGE, 17 + ((_i) << 2)))
114#define BM_RAR_H(_i) (BM_PHY_REG(BM_WUC_PAGE, 18 + ((_i) << 2)))
115#define BM_RAR_CTRL(_i) (BM_PHY_REG(BM_WUC_PAGE, 19 + ((_i) << 2)))
116#define BM_MTA(_i) (BM_PHY_REG(BM_WUC_PAGE, 128 + ((_i) << 1)))
117
118#define BM_RCTL_UPE 0x0001 /* Unicast Promiscuous Mode */
119#define BM_RCTL_MPE 0x0002 /* Multicast Promiscuous Mode */
120#define BM_RCTL_MO_SHIFT 3 /* Multicast Offset Shift */
121#define BM_RCTL_MO_MASK (3 << 3) /* Multicast Offset Mask */
122#define BM_RCTL_BAM 0x0020 /* Broadcast Accept Mode */
123#define BM_RCTL_PMCF 0x0040 /* Pass MAC Control Frames */
124#define BM_RCTL_RFCE 0x0080 /* Rx Flow Control Enable */
125
126#define HV_STATS_PAGE 778
127#define HV_SCC_UPPER PHY_REG(HV_STATS_PAGE, 16) /* Single Collision Count */
128#define HV_SCC_LOWER PHY_REG(HV_STATS_PAGE, 17)
129#define HV_ECOL_UPPER PHY_REG(HV_STATS_PAGE, 18) /* Excessive Coll. Count */
130#define HV_ECOL_LOWER PHY_REG(HV_STATS_PAGE, 19)
131#define HV_MCC_UPPER PHY_REG(HV_STATS_PAGE, 20) /* Multiple Coll. Count */
132#define HV_MCC_LOWER PHY_REG(HV_STATS_PAGE, 21)
133#define HV_LATECOL_UPPER PHY_REG(HV_STATS_PAGE, 23) /* Late Collision Count */
134#define HV_LATECOL_LOWER PHY_REG(HV_STATS_PAGE, 24)
135#define HV_COLC_UPPER PHY_REG(HV_STATS_PAGE, 25) /* Collision Count */
136#define HV_COLC_LOWER PHY_REG(HV_STATS_PAGE, 26)
137#define HV_DC_UPPER PHY_REG(HV_STATS_PAGE, 27) /* Defer Count */
138#define HV_DC_LOWER PHY_REG(HV_STATS_PAGE, 28)
139#define HV_TNCRS_UPPER PHY_REG(HV_STATS_PAGE, 29) /* Transmit with no CRS */
140#define HV_TNCRS_LOWER PHY_REG(HV_STATS_PAGE, 30)
141
142#define E1000_FCRTV_PCH 0x05F40 /* PCH Flow Control Refresh Timer Value */
143
144/* BM PHY Copper Specific Status */
145#define BM_CS_STATUS 17
146#define BM_CS_STATUS_LINK_UP 0x0400
147#define BM_CS_STATUS_RESOLVED 0x0800
148#define BM_CS_STATUS_SPEED_MASK 0xC000
149#define BM_CS_STATUS_SPEED_1000 0x8000
150
151/* 82577 Mobile Phy Status Register */
152#define HV_M_STATUS 26
153#define HV_M_STATUS_AUTONEG_COMPLETE 0x1000
154#define HV_M_STATUS_SPEED_MASK 0x0300
155#define HV_M_STATUS_SPEED_1000 0x0200
156#define HV_M_STATUS_LINK_UP 0x0040
157
158#define E1000_ICH_FWSM_PCIM2PCI 0x01000000 /* ME PCIm-to-PCI active */
159#define E1000_ICH_FWSM_PCIM2PCI_COUNT 2000
160
161/* Time to wait before putting the device into D3 if there's no link (in ms). */
162#define LINK_TIMEOUT 100
163
164/*
165 * Count for polling __E1000_RESET condition every 10-20msec.
166 * Experimentation has shown the reset can take approximately 210msec.
167 */
168#define E1000_CHECK_RESET_COUNT 25
169
170#define DEFAULT_RDTR 0
171#define DEFAULT_RADV 8
172#define BURST_RDTR 0x20
173#define BURST_RADV 0x20
174
175/*
176 * in the case of WTHRESH, it appears at least the 82571/2 hardware
177 * writes back 4 descriptors when WTHRESH=5, and 3 descriptors when
178 * WTHRESH=4, and since we want 64 bytes at a time written back, set
179 * it to 5
180 */
181#define E1000_TXDCTL_DMA_BURST_ENABLE \
182 (E1000_TXDCTL_GRAN | /* set descriptor granularity */ \
183 E1000_TXDCTL_COUNT_DESC | \
184 (5 << 16) | /* wthresh must be +1 more than desired */\
185 (1 << 8) | /* hthresh */ \
186 0x1f) /* pthresh */
187
188#define E1000_RXDCTL_DMA_BURST_ENABLE \
189 (0x01000000 | /* set descriptor granularity */ \
190 (4 << 16) | /* set writeback threshold */ \
191 (4 << 8) | /* set prefetch threshold */ \
192 0x20) /* set hthresh */
193
194#define E1000_TIDV_FPD (1 << 31)
195#define E1000_RDTR_FPD (1 << 31)
196
197enum e1000_boards {
198 board_82571,
199 board_82572,
200 board_82573,
201 board_82574,
202 board_82583,
203 board_80003es2lan,
204 board_ich8lan,
205 board_ich9lan,
206 board_ich10lan,
207 board_pchlan,
208 board_pch2lan,
209 board_pch_lpt,
210};
211
212struct e1000_ps_page {
213 struct page *page;
214 u64 dma; /* must be u64 - written to hw */
215};
216
217/*
218 * wrappers around a pointer to a socket buffer,
219 * so a DMA handle can be stored along with the buffer
220 */
221struct e1000_buffer {
222 dma_addr_t dma;
223 struct sk_buff *skb;
224 union {
225 /* Tx */
226 struct {
227 unsigned long time_stamp;
228 u16 length;
229 u16 next_to_watch;
230 unsigned int segs;
231 unsigned int bytecount;
232 u16 mapped_as_page;
233 };
234 /* Rx */
235 struct {
236 /* arrays of page information for packet split */
237 struct e1000_ps_page *ps_pages;
238 struct page *page;
239 };
240 };
241};
242
243struct e1000_ring {
244 struct e1000_adapter *adapter; /* back pointer to adapter */
245 void *desc; /* pointer to ring memory */
246 dma_addr_t dma; /* phys address of ring */
247 unsigned int size; /* length of ring in bytes */
248 unsigned int count; /* number of desc. in ring */
249
250 u16 next_to_use;
251 u16 next_to_clean;
252
253 void __iomem *head;
254 void __iomem *tail;
255
256 /* array of buffer information structs */
257 struct e1000_buffer *buffer_info;
258
259 char name[IFNAMSIZ + 5];
260 u32 ims_val;
261 u32 itr_val;
262 void __iomem *itr_register;
263 int set_itr;
264
265 struct sk_buff *rx_skb_top;
266};
267
268/* PHY register snapshot values */
269struct e1000_phy_regs {
270 u16 bmcr; /* basic mode control register */
271 u16 bmsr; /* basic mode status register */
272 u16 advertise; /* auto-negotiation advertisement */
273 u16 lpa; /* link partner ability register */
274 u16 expansion; /* auto-negotiation expansion reg */
275 u16 ctrl1000; /* 1000BASE-T control register */
276 u16 stat1000; /* 1000BASE-T status register */
277 u16 estatus; /* extended status register */
278};
279
280/* board specific private data structure */
281struct e1000_adapter {
282 struct timer_list watchdog_timer;
283 struct timer_list phy_info_timer;
284 struct timer_list blink_timer;
285
286 struct work_struct reset_task;
287 struct work_struct watchdog_task;
288
289 const struct e1000_info *ei;
290
291 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
292 u32 bd_number;
293 u32 rx_buffer_len;
294 u16 mng_vlan_id;
295 u16 link_speed;
296 u16 link_duplex;
297 u16 eeprom_vers;
298
299 /* track device up/down/testing state */
300 unsigned long state;
301
302 /* Interrupt Throttle Rate */
303 u32 itr;
304 u32 itr_setting;
305 u16 tx_itr;
306 u16 rx_itr;
307
308 /*
309 * Tx
310 */
311 struct e1000_ring *tx_ring /* One per active queue */
312 ____cacheline_aligned_in_smp;
313 u32 tx_fifo_limit;
314
315 struct napi_struct napi;
316
317 unsigned int restart_queue;
318 u32 txd_cmd;
319
320 bool detect_tx_hung;
321 bool tx_hang_recheck;
322 u8 tx_timeout_factor;
323
324 u32 tx_int_delay;
325 u32 tx_abs_int_delay;
326
327 unsigned int total_tx_bytes;
328 unsigned int total_tx_packets;
329 unsigned int total_rx_bytes;
330 unsigned int total_rx_packets;
331
332 /* Tx stats */
333 u64 tpt_old;
334 u64 colc_old;
335 u32 gotc;
336 u64 gotc_old;
337 u32 tx_timeout_count;
338 u32 tx_fifo_head;
339 u32 tx_head_addr;
340 u32 tx_fifo_size;
341 u32 tx_dma_failed;
342
343 /*
344 * Rx
345 */
346 bool (*clean_rx) (struct e1000_ring *ring, int *work_done,
347 int work_to_do) ____cacheline_aligned_in_smp;
348 void (*alloc_rx_buf) (struct e1000_ring *ring, int cleaned_count,
349 gfp_t gfp);
350 struct e1000_ring *rx_ring;
351
352 u32 rx_int_delay;
353 u32 rx_abs_int_delay;
354
355 /* Rx stats */
356 u64 hw_csum_err;
357 u64 hw_csum_good;
358 u64 rx_hdr_split;
359 u32 gorc;
360 u64 gorc_old;
361 u32 alloc_rx_buff_failed;
362 u32 rx_dma_failed;
363
364 unsigned int rx_ps_pages;
365 u16 rx_ps_bsize0;
366 u32 max_frame_size;
367 u32 min_frame_size;
368
369 /* OS defined structs */
370 struct net_device *netdev;
371 struct pci_dev *pdev;
372
373 /* structs defined in e1000_hw.h */
374 struct e1000_hw hw;
375
376 spinlock_t stats64_lock;
377 struct e1000_hw_stats stats;
378 struct e1000_phy_info phy_info;
379 struct e1000_phy_stats phy_stats;
380
381 /* Snapshot of PHY registers */
382 struct e1000_phy_regs phy_regs;
383
384 struct e1000_ring test_tx_ring;
385 struct e1000_ring test_rx_ring;
386 u32 test_icr;
387
388 u32 msg_enable;
389 unsigned int num_vectors;
390 struct msix_entry *msix_entries;
391 int int_mode;
392 u32 eiac_mask;
393
394 u32 eeprom_wol;
395 u32 wol;
396 u32 pba;
397 u32 max_hw_frame_size;
398
399 bool fc_autoneg;
400
401 unsigned int flags;
402 unsigned int flags2;
403 struct work_struct downshift_task;
404 struct work_struct update_phy_task;
405 struct work_struct print_hang_task;
406
407 bool idle_check;
408 int phy_hang_count;
409
410 u16 tx_ring_count;
411 u16 rx_ring_count;
412};
413
414struct e1000_info {
415 enum e1000_mac_type mac;
416 unsigned int flags;
417 unsigned int flags2;
418 u32 pba;
419 u32 max_hw_frame_size;
420 s32 (*get_variants)(struct e1000_adapter *);
421 const struct e1000_mac_operations *mac_ops;
422 const struct e1000_phy_operations *phy_ops;
423 const struct e1000_nvm_operations *nvm_ops;
424};
425
426/* hardware capability, feature, and workaround flags */
427#define FLAG_HAS_AMT (1 << 0)
428#define FLAG_HAS_FLASH (1 << 1)
429#define FLAG_HAS_HW_VLAN_FILTER (1 << 2)
430#define FLAG_HAS_WOL (1 << 3)
431/* reserved bit4 */
432#define FLAG_HAS_CTRLEXT_ON_LOAD (1 << 5)
433#define FLAG_HAS_SWSM_ON_LOAD (1 << 6)
434#define FLAG_HAS_JUMBO_FRAMES (1 << 7)
435#define FLAG_READ_ONLY_NVM (1 << 8)
436#define FLAG_IS_ICH (1 << 9)
437#define FLAG_HAS_MSIX (1 << 10)
438#define FLAG_HAS_SMART_POWER_DOWN (1 << 11)
439#define FLAG_IS_QUAD_PORT_A (1 << 12)
440#define FLAG_IS_QUAD_PORT (1 << 13)
441/* reserved bit14 */
442#define FLAG_APME_IN_WUC (1 << 15)
443#define FLAG_APME_IN_CTRL3 (1 << 16)
444#define FLAG_APME_CHECK_PORT_B (1 << 17)
445#define FLAG_DISABLE_FC_PAUSE_TIME (1 << 18)
446#define FLAG_NO_WAKE_UCAST (1 << 19)
447#define FLAG_MNG_PT_ENABLED (1 << 20)
448#define FLAG_RESET_OVERWRITES_LAA (1 << 21)
449#define FLAG_TARC_SPEED_MODE_BIT (1 << 22)
450#define FLAG_TARC_SET_BIT_ZERO (1 << 23)
451#define FLAG_RX_NEEDS_RESTART (1 << 24)
452#define FLAG_LSC_GIG_SPEED_DROP (1 << 25)
453#define FLAG_SMART_POWER_DOWN (1 << 26)
454#define FLAG_MSI_ENABLED (1 << 27)
455/* reserved (1 << 28) */
456#define FLAG_TSO_FORCE (1 << 29)
457#define FLAG_RX_RESTART_NOW (1 << 30)
458#define FLAG_MSI_TEST_FAILED (1 << 31)
459
460#define FLAG2_CRC_STRIPPING (1 << 0)
461#define FLAG2_HAS_PHY_WAKEUP (1 << 1)
462#define FLAG2_IS_DISCARDING (1 << 2)
463#define FLAG2_DISABLE_ASPM_L1 (1 << 3)
464#define FLAG2_HAS_PHY_STATS (1 << 4)
465#define FLAG2_HAS_EEE (1 << 5)
466#define FLAG2_DMA_BURST (1 << 6)
467#define FLAG2_DISABLE_ASPM_L0S (1 << 7)
468#define FLAG2_DISABLE_AIM (1 << 8)
469#define FLAG2_CHECK_PHY_HANG (1 << 9)
470#define FLAG2_NO_DISABLE_RX (1 << 10)
471#define FLAG2_PCIM2PCI_ARBITER_WA (1 << 11)
472#define FLAG2_DFLT_CRC_STRIPPING (1 << 12)
473
474#define E1000_RX_DESC_PS(R, i) \
475 (&(((union e1000_rx_desc_packet_split *)((R).desc))[i]))
476#define E1000_RX_DESC_EXT(R, i) \
477 (&(((union e1000_rx_desc_extended *)((R).desc))[i]))
478#define E1000_GET_DESC(R, i, type) (&(((struct type *)((R).desc))[i]))
479#define E1000_TX_DESC(R, i) E1000_GET_DESC(R, i, e1000_tx_desc)
480#define E1000_CONTEXT_DESC(R, i) E1000_GET_DESC(R, i, e1000_context_desc)
481
482enum e1000_state_t {
483 __E1000_TESTING,
484 __E1000_RESETTING,
485 __E1000_ACCESS_SHARED_RESOURCE,
486 __E1000_DOWN
487};
488
489enum latency_range {
490 lowest_latency = 0,
491 low_latency = 1,
492 bulk_latency = 2,
493 latency_invalid = 255
494};
495
496extern char e1000e_driver_name[];
497extern const char e1000e_driver_version[];
498
499extern void e1000e_check_options(struct e1000_adapter *adapter);
500extern void e1000e_set_ethtool_ops(struct net_device *netdev);
501
502extern int e1000e_up(struct e1000_adapter *adapter);
503extern void e1000e_down(struct e1000_adapter *adapter);
504extern void e1000e_reinit_locked(struct e1000_adapter *adapter);
505extern void e1000e_reset(struct e1000_adapter *adapter);
506extern void e1000e_power_up_phy(struct e1000_adapter *adapter);
507extern int e1000e_setup_rx_resources(struct e1000_ring *ring);
508extern int e1000e_setup_tx_resources(struct e1000_ring *ring);
509extern void e1000e_free_rx_resources(struct e1000_ring *ring);
510extern void e1000e_free_tx_resources(struct e1000_ring *ring);
511extern struct rtnl_link_stats64 *e1000e_get_stats64(struct net_device *netdev,
512 struct rtnl_link_stats64
513 *stats);
514extern void e1000e_set_interrupt_capability(struct e1000_adapter *adapter);
515extern void e1000e_reset_interrupt_capability(struct e1000_adapter *adapter);
516extern void e1000e_get_hw_control(struct e1000_adapter *adapter);
517extern void e1000e_release_hw_control(struct e1000_adapter *adapter);
518
519extern unsigned int copybreak;
520
521extern char *e1000e_get_hw_dev_name(struct e1000_hw *hw);
522
523extern const struct e1000_info e1000_82571_info;
524extern const struct e1000_info e1000_82572_info;
525extern const struct e1000_info e1000_82573_info;
526extern const struct e1000_info e1000_82574_info;
527extern const struct e1000_info e1000_82583_info;
528extern const struct e1000_info e1000_ich8_info;
529extern const struct e1000_info e1000_ich9_info;
530extern const struct e1000_info e1000_ich10_info;
531extern const struct e1000_info e1000_pch_info;
532extern const struct e1000_info e1000_pch2_info;
533extern const struct e1000_info e1000_pch_lpt_info;
534extern const struct e1000_info e1000_es2_info;
535
536extern s32 e1000_read_pba_string_generic(struct e1000_hw *hw, u8 *pba_num,
537 u32 pba_num_size);
538
539extern s32 e1000e_commit_phy(struct e1000_hw *hw);
540
541extern bool e1000e_enable_mng_pass_thru(struct e1000_hw *hw);
542
543extern bool e1000e_get_laa_state_82571(struct e1000_hw *hw);
544extern void e1000e_set_laa_state_82571(struct e1000_hw *hw, bool state);
545
546extern void e1000e_write_protect_nvm_ich8lan(struct e1000_hw *hw);
547extern void e1000e_set_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw,
548 bool state);
549extern void e1000e_igp3_phy_powerdown_workaround_ich8lan(struct e1000_hw *hw);
550extern void e1000e_gig_downshift_workaround_ich8lan(struct e1000_hw *hw);
551extern void e1000_suspend_workarounds_ich8lan(struct e1000_hw *hw);
552extern void e1000_resume_workarounds_pchlan(struct e1000_hw *hw);
553extern s32 e1000_configure_k1_ich8lan(struct e1000_hw *hw, bool k1_enable);
554extern s32 e1000_lv_jumbo_workaround_ich8lan(struct e1000_hw *hw, bool enable);
555extern void e1000_copy_rx_addrs_to_phy_ich8lan(struct e1000_hw *hw);
556
557extern s32 e1000e_check_for_copper_link(struct e1000_hw *hw);
558extern s32 e1000e_check_for_fiber_link(struct e1000_hw *hw);
559extern s32 e1000e_check_for_serdes_link(struct e1000_hw *hw);
560extern s32 e1000e_setup_led_generic(struct e1000_hw *hw);
561extern s32 e1000e_cleanup_led_generic(struct e1000_hw *hw);
562extern s32 e1000e_led_on_generic(struct e1000_hw *hw);
563extern s32 e1000e_led_off_generic(struct e1000_hw *hw);
564extern s32 e1000e_get_bus_info_pcie(struct e1000_hw *hw);
565extern void e1000_set_lan_id_multi_port_pcie(struct e1000_hw *hw);
566extern void e1000_set_lan_id_single_port(struct e1000_hw *hw);
567extern s32 e1000e_get_speed_and_duplex_copper(struct e1000_hw *hw, u16 *speed, u16 *duplex);
568extern s32 e1000e_get_speed_and_duplex_fiber_serdes(struct e1000_hw *hw, u16 *speed, u16 *duplex);
569extern s32 e1000e_disable_pcie_master(struct e1000_hw *hw);
570extern s32 e1000e_get_auto_rd_done(struct e1000_hw *hw);
571extern s32 e1000e_id_led_init_generic(struct e1000_hw *hw);
572extern void e1000e_clear_hw_cntrs_base(struct e1000_hw *hw);
573extern s32 e1000e_setup_fiber_serdes_link(struct e1000_hw *hw);
574extern s32 e1000e_copper_link_setup_m88(struct e1000_hw *hw);
575extern s32 e1000e_copper_link_setup_igp(struct e1000_hw *hw);
576extern s32 e1000e_setup_link_generic(struct e1000_hw *hw);
577extern void e1000_clear_vfta_generic(struct e1000_hw *hw);
578extern void e1000e_init_rx_addrs(struct e1000_hw *hw, u16 rar_count);
579extern void e1000e_update_mc_addr_list_generic(struct e1000_hw *hw,
580 u8 *mc_addr_list,
581 u32 mc_addr_count);
582extern void e1000e_rar_set_generic(struct e1000_hw *hw, u8 *addr, u32 index);
583extern s32 e1000e_set_fc_watermarks(struct e1000_hw *hw);
584extern void e1000e_set_pcie_no_snoop(struct e1000_hw *hw, u32 no_snoop);
585extern s32 e1000e_get_hw_semaphore(struct e1000_hw *hw);
586extern s32 e1000e_valid_led_default(struct e1000_hw *hw, u16 *data);
587extern void e1000e_config_collision_dist_generic(struct e1000_hw *hw);
588extern s32 e1000e_config_fc_after_link_up(struct e1000_hw *hw);
589extern s32 e1000e_force_mac_fc(struct e1000_hw *hw);
590extern s32 e1000e_blink_led_generic(struct e1000_hw *hw);
591extern void e1000_write_vfta_generic(struct e1000_hw *hw, u32 offset, u32 value);
592extern s32 e1000_check_alt_mac_addr_generic(struct e1000_hw *hw);
593extern void e1000e_reset_adaptive(struct e1000_hw *hw);
594extern void e1000e_update_adaptive(struct e1000_hw *hw);
595
596extern s32 e1000e_setup_copper_link(struct e1000_hw *hw);
597extern s32 e1000e_get_phy_id(struct e1000_hw *hw);
598extern void e1000e_put_hw_semaphore(struct e1000_hw *hw);
599extern s32 e1000e_check_reset_block_generic(struct e1000_hw *hw);
600extern s32 e1000e_phy_force_speed_duplex_igp(struct e1000_hw *hw);
601extern s32 e1000e_get_cable_length_igp_2(struct e1000_hw *hw);
602extern s32 e1000e_get_phy_info_igp(struct e1000_hw *hw);
603extern s32 e1000_set_page_igp(struct e1000_hw *hw, u16 page);
604extern s32 e1000e_read_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 *data);
605extern s32 e1000e_read_phy_reg_igp_locked(struct e1000_hw *hw, u32 offset,
606 u16 *data);
607extern s32 e1000e_phy_hw_reset_generic(struct e1000_hw *hw);
608extern s32 e1000e_set_d3_lplu_state(struct e1000_hw *hw, bool active);
609extern s32 e1000e_write_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 data);
610extern s32 e1000e_write_phy_reg_igp_locked(struct e1000_hw *hw, u32 offset,
611 u16 data);
612extern s32 e1000e_phy_sw_reset(struct e1000_hw *hw);
613extern s32 e1000e_phy_force_speed_duplex_m88(struct e1000_hw *hw);
614extern s32 e1000e_get_cfg_done(struct e1000_hw *hw);
615extern s32 e1000e_get_cable_length_m88(struct e1000_hw *hw);
616extern s32 e1000e_get_phy_info_m88(struct e1000_hw *hw);
617extern s32 e1000e_read_phy_reg_m88(struct e1000_hw *hw, u32 offset, u16 *data);
618extern s32 e1000e_write_phy_reg_m88(struct e1000_hw *hw, u32 offset, u16 data);
619extern s32 e1000e_phy_init_script_igp3(struct e1000_hw *hw);
620extern enum e1000_phy_type e1000e_get_phy_type_from_id(u32 phy_id);
621extern s32 e1000e_determine_phy_address(struct e1000_hw *hw);
622extern s32 e1000e_write_phy_reg_bm(struct e1000_hw *hw, u32 offset, u16 data);
623extern s32 e1000e_read_phy_reg_bm(struct e1000_hw *hw, u32 offset, u16 *data);
624extern s32 e1000_enable_phy_wakeup_reg_access_bm(struct e1000_hw *hw,
625 u16 *phy_reg);
626extern s32 e1000_disable_phy_wakeup_reg_access_bm(struct e1000_hw *hw,
627 u16 *phy_reg);
628extern s32 e1000e_read_phy_reg_bm2(struct e1000_hw *hw, u32 offset, u16 *data);
629extern s32 e1000e_write_phy_reg_bm2(struct e1000_hw *hw, u32 offset, u16 data);
630extern void e1000e_phy_force_speed_duplex_setup(struct e1000_hw *hw, u16 *phy_ctrl);
631extern s32 e1000e_write_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 data);
632extern s32 e1000e_write_kmrn_reg_locked(struct e1000_hw *hw, u32 offset,
633 u16 data);
634extern s32 e1000e_read_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 *data);
635extern s32 e1000e_read_kmrn_reg_locked(struct e1000_hw *hw, u32 offset,
636 u16 *data);
637extern s32 e1000e_phy_has_link_generic(struct e1000_hw *hw, u32 iterations,
638 u32 usec_interval, bool *success);
639extern s32 e1000e_phy_reset_dsp(struct e1000_hw *hw);
640extern void e1000_power_up_phy_copper(struct e1000_hw *hw);
641extern void e1000_power_down_phy_copper(struct e1000_hw *hw);
642extern s32 e1000e_read_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 *data);
643extern s32 e1000e_write_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 data);
644extern s32 e1000e_check_downshift(struct e1000_hw *hw);
645extern s32 e1000_read_phy_reg_hv(struct e1000_hw *hw, u32 offset, u16 *data);
646extern s32 e1000_read_phy_reg_hv_locked(struct e1000_hw *hw, u32 offset,
647 u16 *data);
648extern s32 e1000_read_phy_reg_page_hv(struct e1000_hw *hw, u32 offset,
649 u16 *data);
650extern s32 e1000_write_phy_reg_hv(struct e1000_hw *hw, u32 offset, u16 data);
651extern s32 e1000_write_phy_reg_hv_locked(struct e1000_hw *hw, u32 offset,
652 u16 data);
653extern s32 e1000_write_phy_reg_page_hv(struct e1000_hw *hw, u32 offset,
654 u16 data);
655extern s32 e1000_link_stall_workaround_hv(struct e1000_hw *hw);
656extern s32 e1000_copper_link_setup_82577(struct e1000_hw *hw);
657extern s32 e1000_check_polarity_82577(struct e1000_hw *hw);
658extern s32 e1000_get_phy_info_82577(struct e1000_hw *hw);
659extern s32 e1000_phy_force_speed_duplex_82577(struct e1000_hw *hw);
660extern s32 e1000_get_cable_length_82577(struct e1000_hw *hw);
661
662extern s32 e1000_check_polarity_m88(struct e1000_hw *hw);
663extern s32 e1000_get_phy_info_ife(struct e1000_hw *hw);
664extern s32 e1000_check_polarity_ife(struct e1000_hw *hw);
665extern s32 e1000_phy_force_speed_duplex_ife(struct e1000_hw *hw);
666extern s32 e1000_check_polarity_igp(struct e1000_hw *hw);
667extern bool e1000_check_phy_82574(struct e1000_hw *hw);
668
669static inline s32 e1000_phy_hw_reset(struct e1000_hw *hw)
670{
671 return hw->phy.ops.reset(hw);
672}
673
674static inline s32 e1e_rphy(struct e1000_hw *hw, u32 offset, u16 *data)
675{
676 return hw->phy.ops.read_reg(hw, offset, data);
677}
678
679static inline s32 e1e_rphy_locked(struct e1000_hw *hw, u32 offset, u16 *data)
680{
681 return hw->phy.ops.read_reg_locked(hw, offset, data);
682}
683
684static inline s32 e1e_wphy(struct e1000_hw *hw, u32 offset, u16 data)
685{
686 return hw->phy.ops.write_reg(hw, offset, data);
687}
688
689static inline s32 e1e_wphy_locked(struct e1000_hw *hw, u32 offset, u16 data)
690{
691 return hw->phy.ops.write_reg_locked(hw, offset, data);
692}
693
694static inline s32 e1000_get_cable_length(struct e1000_hw *hw)
695{
696 return hw->phy.ops.get_cable_length(hw);
697}
698
699extern s32 e1000e_acquire_nvm(struct e1000_hw *hw);
700extern s32 e1000e_write_nvm_spi(struct e1000_hw *hw, u16 offset, u16 words, u16 *data);
701extern s32 e1000e_update_nvm_checksum_generic(struct e1000_hw *hw);
702extern s32 e1000e_poll_eerd_eewr_done(struct e1000_hw *hw, int ee_reg);
703extern s32 e1000e_read_nvm_eerd(struct e1000_hw *hw, u16 offset, u16 words, u16 *data);
704extern s32 e1000e_validate_nvm_checksum_generic(struct e1000_hw *hw);
705extern void e1000e_release_nvm(struct e1000_hw *hw);
706extern void e1000e_reload_nvm_generic(struct e1000_hw *hw);
707extern s32 e1000_read_mac_addr_generic(struct e1000_hw *hw);
708
709static inline s32 e1000e_read_mac_addr(struct e1000_hw *hw)
710{
711 if (hw->mac.ops.read_mac_addr)
712 return hw->mac.ops.read_mac_addr(hw);
713
714 return e1000_read_mac_addr_generic(hw);
715}
716
717static inline s32 e1000_validate_nvm_checksum(struct e1000_hw *hw)
718{
719 return hw->nvm.ops.validate(hw);
720}
721
722static inline s32 e1000e_update_nvm_checksum(struct e1000_hw *hw)
723{
724 return hw->nvm.ops.update(hw);
725}
726
727static inline s32 e1000_read_nvm(struct e1000_hw *hw, u16 offset, u16 words, u16 *data)
728{
729 return hw->nvm.ops.read(hw, offset, words, data);
730}
731
732static inline s32 e1000_write_nvm(struct e1000_hw *hw, u16 offset, u16 words, u16 *data)
733{
734 return hw->nvm.ops.write(hw, offset, words, data);
735}
736
737static inline s32 e1000_get_phy_info(struct e1000_hw *hw)
738{
739 return hw->phy.ops.get_info(hw);
740}
741
742extern bool e1000e_check_mng_mode_generic(struct e1000_hw *hw);
743extern bool e1000e_enable_tx_pkt_filtering(struct e1000_hw *hw);
744extern s32 e1000e_mng_write_dhcp_info(struct e1000_hw *hw, u8 *buffer, u16 length);
745
746static inline u32 __er32(struct e1000_hw *hw, unsigned long reg)
747{
748 return readl(hw->hw_addr + reg);
749}
750
751#define er32(reg) __er32(hw, E1000_##reg)
752
753/**
754 * __ew32_prepare - prepare to write to MAC CSR register on certain parts
755 * @hw: pointer to the HW structure
756 *
757 * When updating the MAC CSR registers, the Manageability Engine (ME) could
758 * be accessing the registers at the same time. Normally, this is handled in
759 * h/w by an arbiter but on some parts there is a bug that acknowledges Host
760 * accesses later than it should which could result in the register to have
761 * an incorrect value. Workaround this by checking the FWSM register which
762 * has bit 24 set while ME is accessing MAC CSR registers, wait if it is set
763 * and try again a number of times.
764 **/
765static inline s32 __ew32_prepare(struct e1000_hw *hw)
766{
767 s32 i = E1000_ICH_FWSM_PCIM2PCI_COUNT;
768
769 while ((er32(FWSM) & E1000_ICH_FWSM_PCIM2PCI) && --i)
770 udelay(50);
771
772 return i;
773}
774
775static inline void __ew32(struct e1000_hw *hw, unsigned long reg, u32 val)
776{
777 if (hw->adapter->flags2 & FLAG2_PCIM2PCI_ARBITER_WA)
778 __ew32_prepare(hw);
779
780 writel(val, hw->hw_addr + reg);
781}
782
783#define ew32(reg, val) __ew32(hw, E1000_##reg, (val))
784
785#define e1e_flush() er32(STATUS)
786
787#define E1000_WRITE_REG_ARRAY(a, reg, offset, value) \
788 (__ew32((a), (reg + ((offset) << 2)), (value)))
789
790#define E1000_READ_REG_ARRAY(a, reg, offset) \
791 (readl((a)->hw_addr + reg + ((offset) << 2)))
792
793#endif /* _E1000_H_ */