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[net-next-2.6.git] / drivers / net / e1000e / 82571.c
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1/*******************************************************************************
2
3 Intel PRO/1000 Linux driver
ad68076e 4 Copyright(c) 1999 - 2008 Intel Corporation.
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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 * 82571EB Gigabit Ethernet Controller
1605927f 31 * 82571EB Gigabit Ethernet Controller (Copper)
bc7f75fa 32 * 82571EB Gigabit Ethernet Controller (Fiber)
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33 * 82571EB Dual Port Gigabit Mezzanine Adapter
34 * 82571EB Quad Port Gigabit Mezzanine Adapter
35 * 82571PT Gigabit PT Quad Port Server ExpressModule
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36 * 82572EI Gigabit Ethernet Controller (Copper)
37 * 82572EI Gigabit Ethernet Controller (Fiber)
38 * 82572EI Gigabit Ethernet Controller
39 * 82573V Gigabit Ethernet Controller (Copper)
40 * 82573E Gigabit Ethernet Controller (Copper)
41 * 82573L Gigabit Ethernet Controller
4662e82b 42 * 82574L Gigabit Network Connection
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43 */
44
45#include <linux/netdevice.h>
46#include <linux/delay.h>
47#include <linux/pci.h>
48
49#include "e1000.h"
50
51#define ID_LED_RESERVED_F746 0xF746
52#define ID_LED_DEFAULT_82573 ((ID_LED_DEF1_DEF2 << 12) | \
53 (ID_LED_OFF1_ON2 << 8) | \
54 (ID_LED_DEF1_DEF2 << 4) | \
55 (ID_LED_DEF1_DEF2))
56
57#define E1000_GCR_L1_ACT_WITHOUT_L0S_RX 0x08000000
58
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59#define E1000_NVM_INIT_CTRL2_MNGM 0x6000 /* Manageability Operation Mode mask */
60
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61static s32 e1000_get_phy_id_82571(struct e1000_hw *hw);
62static s32 e1000_setup_copper_link_82571(struct e1000_hw *hw);
63static s32 e1000_setup_fiber_serdes_link_82571(struct e1000_hw *hw);
64static s32 e1000_write_nvm_eewr_82571(struct e1000_hw *hw, u16 offset,
65 u16 words, u16 *data);
66static s32 e1000_fix_nvm_checksum_82571(struct e1000_hw *hw);
67static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw);
68static s32 e1000_setup_link_82571(struct e1000_hw *hw);
69static void e1000_clear_hw_cntrs_82571(struct e1000_hw *hw);
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70static bool e1000_check_mng_mode_82574(struct e1000_hw *hw);
71static s32 e1000_led_on_82574(struct e1000_hw *hw);
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72
73/**
74 * e1000_init_phy_params_82571 - Init PHY func ptrs.
75 * @hw: pointer to the HW structure
76 *
77 * This is a function pointer entry point called by the api module.
78 **/
79static s32 e1000_init_phy_params_82571(struct e1000_hw *hw)
80{
81 struct e1000_phy_info *phy = &hw->phy;
82 s32 ret_val;
83
318a94d6 84 if (hw->phy.media_type != e1000_media_type_copper) {
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85 phy->type = e1000_phy_none;
86 return 0;
87 }
88
89 phy->addr = 1;
90 phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
91 phy->reset_delay_us = 100;
92
93 switch (hw->mac.type) {
94 case e1000_82571:
95 case e1000_82572:
96 phy->type = e1000_phy_igp_2;
97 break;
98 case e1000_82573:
99 phy->type = e1000_phy_m88;
100 break;
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101 case e1000_82574:
102 phy->type = e1000_phy_bm;
103 break;
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104 default:
105 return -E1000_ERR_PHY;
106 break;
107 }
108
109 /* This can only be done after all function pointers are setup. */
110 ret_val = e1000_get_phy_id_82571(hw);
111
112 /* Verify phy id */
113 switch (hw->mac.type) {
114 case e1000_82571:
115 case e1000_82572:
116 if (phy->id != IGP01E1000_I_PHY_ID)
117 return -E1000_ERR_PHY;
118 break;
119 case e1000_82573:
120 if (phy->id != M88E1111_I_PHY_ID)
121 return -E1000_ERR_PHY;
122 break;
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123 case e1000_82574:
124 if (phy->id != BME1000_E_PHY_ID_R2)
125 return -E1000_ERR_PHY;
126 break;
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127 default:
128 return -E1000_ERR_PHY;
129 break;
130 }
131
132 return 0;
133}
134
135/**
136 * e1000_init_nvm_params_82571 - Init NVM func ptrs.
137 * @hw: pointer to the HW structure
138 *
139 * This is a function pointer entry point called by the api module.
140 **/
141static s32 e1000_init_nvm_params_82571(struct e1000_hw *hw)
142{
143 struct e1000_nvm_info *nvm = &hw->nvm;
144 u32 eecd = er32(EECD);
145 u16 size;
146
147 nvm->opcode_bits = 8;
148 nvm->delay_usec = 1;
149 switch (nvm->override) {
150 case e1000_nvm_override_spi_large:
151 nvm->page_size = 32;
152 nvm->address_bits = 16;
153 break;
154 case e1000_nvm_override_spi_small:
155 nvm->page_size = 8;
156 nvm->address_bits = 8;
157 break;
158 default:
159 nvm->page_size = eecd & E1000_EECD_ADDR_BITS ? 32 : 8;
160 nvm->address_bits = eecd & E1000_EECD_ADDR_BITS ? 16 : 8;
161 break;
162 }
163
164 switch (hw->mac.type) {
165 case e1000_82573:
4662e82b 166 case e1000_82574:
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167 if (((eecd >> 15) & 0x3) == 0x3) {
168 nvm->type = e1000_nvm_flash_hw;
169 nvm->word_size = 2048;
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170 /*
171 * Autonomous Flash update bit must be cleared due
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172 * to Flash update issue.
173 */
174 eecd &= ~E1000_EECD_AUPDEN;
175 ew32(EECD, eecd);
176 break;
177 }
178 /* Fall Through */
179 default:
ad68076e 180 nvm->type = e1000_nvm_eeprom_spi;
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181 size = (u16)((eecd & E1000_EECD_SIZE_EX_MASK) >>
182 E1000_EECD_SIZE_EX_SHIFT);
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183 /*
184 * Added to a constant, "size" becomes the left-shift value
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185 * for setting word_size.
186 */
187 size += NVM_WORD_SIZE_BASE_SHIFT;
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188
189 /* EEPROM access above 16k is unsupported */
190 if (size > 14)
191 size = 14;
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192 nvm->word_size = 1 << size;
193 break;
194 }
195
196 return 0;
197}
198
199/**
200 * e1000_init_mac_params_82571 - Init MAC func ptrs.
201 * @hw: pointer to the HW structure
202 *
203 * This is a function pointer entry point called by the api module.
204 **/
205static s32 e1000_init_mac_params_82571(struct e1000_adapter *adapter)
206{
207 struct e1000_hw *hw = &adapter->hw;
208 struct e1000_mac_info *mac = &hw->mac;
209 struct e1000_mac_operations *func = &mac->ops;
210
211 /* Set media type */
212 switch (adapter->pdev->device) {
213 case E1000_DEV_ID_82571EB_FIBER:
214 case E1000_DEV_ID_82572EI_FIBER:
215 case E1000_DEV_ID_82571EB_QUAD_FIBER:
318a94d6 216 hw->phy.media_type = e1000_media_type_fiber;
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217 break;
218 case E1000_DEV_ID_82571EB_SERDES:
219 case E1000_DEV_ID_82572EI_SERDES:
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220 case E1000_DEV_ID_82571EB_SERDES_DUAL:
221 case E1000_DEV_ID_82571EB_SERDES_QUAD:
318a94d6 222 hw->phy.media_type = e1000_media_type_internal_serdes;
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223 break;
224 default:
318a94d6 225 hw->phy.media_type = e1000_media_type_copper;
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226 break;
227 }
228
229 /* Set mta register count */
230 mac->mta_reg_count = 128;
231 /* Set rar entry count */
232 mac->rar_entry_count = E1000_RAR_ENTRIES;
233 /* Set if manageability features are enabled. */
ad68076e 234 mac->arc_subsystem_valid = (er32(FWSM) & E1000_FWSM_MODE_MASK) ? 1 : 0;
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235
236 /* check for link */
318a94d6 237 switch (hw->phy.media_type) {
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238 case e1000_media_type_copper:
239 func->setup_physical_interface = e1000_setup_copper_link_82571;
240 func->check_for_link = e1000e_check_for_copper_link;
241 func->get_link_up_info = e1000e_get_speed_and_duplex_copper;
242 break;
243 case e1000_media_type_fiber:
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244 func->setup_physical_interface =
245 e1000_setup_fiber_serdes_link_82571;
bc7f75fa 246 func->check_for_link = e1000e_check_for_fiber_link;
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247 func->get_link_up_info =
248 e1000e_get_speed_and_duplex_fiber_serdes;
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249 break;
250 case e1000_media_type_internal_serdes:
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251 func->setup_physical_interface =
252 e1000_setup_fiber_serdes_link_82571;
bc7f75fa 253 func->check_for_link = e1000e_check_for_serdes_link;
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254 func->get_link_up_info =
255 e1000e_get_speed_and_duplex_fiber_serdes;
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256 break;
257 default:
258 return -E1000_ERR_CONFIG;
259 break;
260 }
261
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262 switch (hw->mac.type) {
263 case e1000_82574:
264 func->check_mng_mode = e1000_check_mng_mode_82574;
265 func->led_on = e1000_led_on_82574;
266 break;
267 default:
268 func->check_mng_mode = e1000e_check_mng_mode_generic;
269 func->led_on = e1000e_led_on_generic;
270 break;
271 }
272
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273 return 0;
274}
275
69e3fd8c 276static s32 e1000_get_variants_82571(struct e1000_adapter *adapter)
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277{
278 struct e1000_hw *hw = &adapter->hw;
279 static int global_quad_port_a; /* global port a indication */
280 struct pci_dev *pdev = adapter->pdev;
281 u16 eeprom_data = 0;
282 int is_port_b = er32(STATUS) & E1000_STATUS_FUNC_1;
283 s32 rc;
284
285 rc = e1000_init_mac_params_82571(adapter);
286 if (rc)
287 return rc;
288
289 rc = e1000_init_nvm_params_82571(hw);
290 if (rc)
291 return rc;
292
293 rc = e1000_init_phy_params_82571(hw);
294 if (rc)
295 return rc;
296
297 /* tag quad port adapters first, it's used below */
298 switch (pdev->device) {
299 case E1000_DEV_ID_82571EB_QUAD_COPPER:
300 case E1000_DEV_ID_82571EB_QUAD_FIBER:
301 case E1000_DEV_ID_82571EB_QUAD_COPPER_LP:
040babf9 302 case E1000_DEV_ID_82571PT_QUAD_COPPER:
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303 adapter->flags |= FLAG_IS_QUAD_PORT;
304 /* mark the first port */
305 if (global_quad_port_a == 0)
306 adapter->flags |= FLAG_IS_QUAD_PORT_A;
307 /* Reset for multiple quad port adapters */
308 global_quad_port_a++;
309 if (global_quad_port_a == 4)
310 global_quad_port_a = 0;
311 break;
312 default:
313 break;
314 }
315
316 switch (adapter->hw.mac.type) {
317 case e1000_82571:
318 /* these dual ports don't have WoL on port B at all */
319 if (((pdev->device == E1000_DEV_ID_82571EB_FIBER) ||
320 (pdev->device == E1000_DEV_ID_82571EB_SERDES) ||
321 (pdev->device == E1000_DEV_ID_82571EB_COPPER)) &&
322 (is_port_b))
323 adapter->flags &= ~FLAG_HAS_WOL;
324 /* quad ports only support WoL on port A */
325 if (adapter->flags & FLAG_IS_QUAD_PORT &&
6e4ca80d 326 (!(adapter->flags & FLAG_IS_QUAD_PORT_A)))
bc7f75fa 327 adapter->flags &= ~FLAG_HAS_WOL;
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328 /* Does not support WoL on any port */
329 if (pdev->device == E1000_DEV_ID_82571EB_SERDES_QUAD)
330 adapter->flags &= ~FLAG_HAS_WOL;
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331 break;
332
333 case e1000_82573:
334 if (pdev->device == E1000_DEV_ID_82573L) {
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335 if (e1000_read_nvm(&adapter->hw, NVM_INIT_3GIO_3, 1,
336 &eeprom_data) < 0)
337 break;
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338 if (eeprom_data & NVM_WORD1A_ASPM_MASK)
339 adapter->flags &= ~FLAG_HAS_JUMBO_FRAMES;
340 }
341 break;
342 default:
343 break;
344 }
345
346 return 0;
347}
348
349/**
350 * e1000_get_phy_id_82571 - Retrieve the PHY ID and revision
351 * @hw: pointer to the HW structure
352 *
353 * Reads the PHY registers and stores the PHY ID and possibly the PHY
354 * revision in the hardware structure.
355 **/
356static s32 e1000_get_phy_id_82571(struct e1000_hw *hw)
357{
358 struct e1000_phy_info *phy = &hw->phy;
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359 s32 ret_val;
360 u16 phy_id = 0;
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361
362 switch (hw->mac.type) {
363 case e1000_82571:
364 case e1000_82572:
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365 /*
366 * The 82571 firmware may still be configuring the PHY.
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367 * In this case, we cannot access the PHY until the
368 * configuration is done. So we explicitly set the
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369 * PHY ID.
370 */
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371 phy->id = IGP01E1000_I_PHY_ID;
372 break;
373 case e1000_82573:
374 return e1000e_get_phy_id(hw);
375 break;
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376 case e1000_82574:
377 ret_val = e1e_rphy(hw, PHY_ID1, &phy_id);
378 if (ret_val)
379 return ret_val;
380
381 phy->id = (u32)(phy_id << 16);
382 udelay(20);
383 ret_val = e1e_rphy(hw, PHY_ID2, &phy_id);
384 if (ret_val)
385 return ret_val;
386
387 phy->id |= (u32)(phy_id);
388 phy->revision = (u32)(phy_id & ~PHY_REVISION_MASK);
389 break;
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390 default:
391 return -E1000_ERR_PHY;
392 break;
393 }
394
395 return 0;
396}
397
398/**
399 * e1000_get_hw_semaphore_82571 - Acquire hardware semaphore
400 * @hw: pointer to the HW structure
401 *
402 * Acquire the HW semaphore to access the PHY or NVM
403 **/
404static s32 e1000_get_hw_semaphore_82571(struct e1000_hw *hw)
405{
406 u32 swsm;
407 s32 timeout = hw->nvm.word_size + 1;
408 s32 i = 0;
409
410 /* Get the FW semaphore. */
411 for (i = 0; i < timeout; i++) {
412 swsm = er32(SWSM);
413 ew32(SWSM, swsm | E1000_SWSM_SWESMBI);
414
415 /* Semaphore acquired if bit latched */
416 if (er32(SWSM) & E1000_SWSM_SWESMBI)
417 break;
418
419 udelay(50);
420 }
421
422 if (i == timeout) {
423 /* Release semaphores */
424 e1000e_put_hw_semaphore(hw);
425 hw_dbg(hw, "Driver can't access the NVM\n");
426 return -E1000_ERR_NVM;
427 }
428
429 return 0;
430}
431
432/**
433 * e1000_put_hw_semaphore_82571 - Release hardware semaphore
434 * @hw: pointer to the HW structure
435 *
436 * Release hardware semaphore used to access the PHY or NVM
437 **/
438static void e1000_put_hw_semaphore_82571(struct e1000_hw *hw)
439{
440 u32 swsm;
441
442 swsm = er32(SWSM);
443
444 swsm &= ~E1000_SWSM_SWESMBI;
445
446 ew32(SWSM, swsm);
447}
448
449/**
450 * e1000_acquire_nvm_82571 - Request for access to the EEPROM
451 * @hw: pointer to the HW structure
452 *
453 * To gain access to the EEPROM, first we must obtain a hardware semaphore.
454 * Then for non-82573 hardware, set the EEPROM access request bit and wait
455 * for EEPROM access grant bit. If the access grant bit is not set, release
456 * hardware semaphore.
457 **/
458static s32 e1000_acquire_nvm_82571(struct e1000_hw *hw)
459{
460 s32 ret_val;
461
462 ret_val = e1000_get_hw_semaphore_82571(hw);
463 if (ret_val)
464 return ret_val;
465
4662e82b 466 if (hw->mac.type != e1000_82573 && hw->mac.type != e1000_82574)
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467 ret_val = e1000e_acquire_nvm(hw);
468
469 if (ret_val)
470 e1000_put_hw_semaphore_82571(hw);
471
472 return ret_val;
473}
474
475/**
476 * e1000_release_nvm_82571 - Release exclusive access to EEPROM
477 * @hw: pointer to the HW structure
478 *
479 * Stop any current commands to the EEPROM and clear the EEPROM request bit.
480 **/
481static void e1000_release_nvm_82571(struct e1000_hw *hw)
482{
483 e1000e_release_nvm(hw);
484 e1000_put_hw_semaphore_82571(hw);
485}
486
487/**
488 * e1000_write_nvm_82571 - Write to EEPROM using appropriate interface
489 * @hw: pointer to the HW structure
490 * @offset: offset within the EEPROM to be written to
491 * @words: number of words to write
492 * @data: 16 bit word(s) to be written to the EEPROM
493 *
494 * For non-82573 silicon, write data to EEPROM at offset using SPI interface.
495 *
496 * If e1000e_update_nvm_checksum is not called after this function, the
489815ce 497 * EEPROM will most likely contain an invalid checksum.
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498 **/
499static s32 e1000_write_nvm_82571(struct e1000_hw *hw, u16 offset, u16 words,
500 u16 *data)
501{
502 s32 ret_val;
503
504 switch (hw->mac.type) {
505 case e1000_82573:
4662e82b 506 case e1000_82574:
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507 ret_val = e1000_write_nvm_eewr_82571(hw, offset, words, data);
508 break;
509 case e1000_82571:
510 case e1000_82572:
511 ret_val = e1000e_write_nvm_spi(hw, offset, words, data);
512 break;
513 default:
514 ret_val = -E1000_ERR_NVM;
515 break;
516 }
517
518 return ret_val;
519}
520
521/**
522 * e1000_update_nvm_checksum_82571 - Update EEPROM checksum
523 * @hw: pointer to the HW structure
524 *
525 * Updates the EEPROM checksum by reading/adding each word of the EEPROM
526 * up to the checksum. Then calculates the EEPROM checksum and writes the
527 * value to the EEPROM.
528 **/
529static s32 e1000_update_nvm_checksum_82571(struct e1000_hw *hw)
530{
531 u32 eecd;
532 s32 ret_val;
533 u16 i;
534
535 ret_val = e1000e_update_nvm_checksum_generic(hw);
536 if (ret_val)
537 return ret_val;
538
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539 /*
540 * If our nvm is an EEPROM, then we're done
541 * otherwise, commit the checksum to the flash NVM.
542 */
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543 if (hw->nvm.type != e1000_nvm_flash_hw)
544 return ret_val;
545
546 /* Check for pending operations. */
547 for (i = 0; i < E1000_FLASH_UPDATES; i++) {
548 msleep(1);
549 if ((er32(EECD) & E1000_EECD_FLUPD) == 0)
550 break;
551 }
552
553 if (i == E1000_FLASH_UPDATES)
554 return -E1000_ERR_NVM;
555
556 /* Reset the firmware if using STM opcode. */
557 if ((er32(FLOP) & 0xFF00) == E1000_STM_OPCODE) {
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558 /*
559 * The enabling of and the actual reset must be done
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560 * in two write cycles.
561 */
562 ew32(HICR, E1000_HICR_FW_RESET_ENABLE);
563 e1e_flush();
564 ew32(HICR, E1000_HICR_FW_RESET);
565 }
566
567 /* Commit the write to flash */
568 eecd = er32(EECD) | E1000_EECD_FLUPD;
569 ew32(EECD, eecd);
570
571 for (i = 0; i < E1000_FLASH_UPDATES; i++) {
572 msleep(1);
573 if ((er32(EECD) & E1000_EECD_FLUPD) == 0)
574 break;
575 }
576
577 if (i == E1000_FLASH_UPDATES)
578 return -E1000_ERR_NVM;
579
580 return 0;
581}
582
583/**
584 * e1000_validate_nvm_checksum_82571 - Validate EEPROM checksum
585 * @hw: pointer to the HW structure
586 *
587 * Calculates the EEPROM checksum by reading/adding each word of the EEPROM
588 * and then verifies that the sum of the EEPROM is equal to 0xBABA.
589 **/
590static s32 e1000_validate_nvm_checksum_82571(struct e1000_hw *hw)
591{
592 if (hw->nvm.type == e1000_nvm_flash_hw)
593 e1000_fix_nvm_checksum_82571(hw);
594
595 return e1000e_validate_nvm_checksum_generic(hw);
596}
597
598/**
599 * e1000_write_nvm_eewr_82571 - Write to EEPROM for 82573 silicon
600 * @hw: pointer to the HW structure
601 * @offset: offset within the EEPROM to be written to
602 * @words: number of words to write
603 * @data: 16 bit word(s) to be written to the EEPROM
604 *
605 * After checking for invalid values, poll the EEPROM to ensure the previous
606 * command has completed before trying to write the next word. After write
607 * poll for completion.
608 *
609 * If e1000e_update_nvm_checksum is not called after this function, the
489815ce 610 * EEPROM will most likely contain an invalid checksum.
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611 **/
612static s32 e1000_write_nvm_eewr_82571(struct e1000_hw *hw, u16 offset,
613 u16 words, u16 *data)
614{
615 struct e1000_nvm_info *nvm = &hw->nvm;
616 u32 i;
617 u32 eewr = 0;
618 s32 ret_val = 0;
619
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620 /*
621 * A check for invalid values: offset too large, too many words,
622 * and not enough words.
623 */
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624 if ((offset >= nvm->word_size) || (words > (nvm->word_size - offset)) ||
625 (words == 0)) {
626 hw_dbg(hw, "nvm parameter(s) out of bounds\n");
627 return -E1000_ERR_NVM;
628 }
629
630 for (i = 0; i < words; i++) {
631 eewr = (data[i] << E1000_NVM_RW_REG_DATA) |
632 ((offset+i) << E1000_NVM_RW_ADDR_SHIFT) |
633 E1000_NVM_RW_REG_START;
634
635 ret_val = e1000e_poll_eerd_eewr_done(hw, E1000_NVM_POLL_WRITE);
636 if (ret_val)
637 break;
638
639 ew32(EEWR, eewr);
640
641 ret_val = e1000e_poll_eerd_eewr_done(hw, E1000_NVM_POLL_WRITE);
642 if (ret_val)
643 break;
644 }
645
646 return ret_val;
647}
648
649/**
650 * e1000_get_cfg_done_82571 - Poll for configuration done
651 * @hw: pointer to the HW structure
652 *
653 * Reads the management control register for the config done bit to be set.
654 **/
655static s32 e1000_get_cfg_done_82571(struct e1000_hw *hw)
656{
657 s32 timeout = PHY_CFG_TIMEOUT;
658
659 while (timeout) {
660 if (er32(EEMNGCTL) &
661 E1000_NVM_CFG_DONE_PORT_0)
662 break;
663 msleep(1);
664 timeout--;
665 }
666 if (!timeout) {
667 hw_dbg(hw, "MNG configuration cycle has not completed.\n");
668 return -E1000_ERR_RESET;
669 }
670
671 return 0;
672}
673
674/**
675 * e1000_set_d0_lplu_state_82571 - Set Low Power Linkup D0 state
676 * @hw: pointer to the HW structure
677 * @active: TRUE to enable LPLU, FALSE to disable
678 *
679 * Sets the LPLU D0 state according to the active flag. When activating LPLU
680 * this function also disables smart speed and vice versa. LPLU will not be
681 * activated unless the device autonegotiation advertisement meets standards
682 * of either 10 or 10/100 or 10/100/1000 at all duplexes. This is a function
683 * pointer entry point only called by PHY setup routines.
684 **/
685static s32 e1000_set_d0_lplu_state_82571(struct e1000_hw *hw, bool active)
686{
687 struct e1000_phy_info *phy = &hw->phy;
688 s32 ret_val;
689 u16 data;
690
691 ret_val = e1e_rphy(hw, IGP02E1000_PHY_POWER_MGMT, &data);
692 if (ret_val)
693 return ret_val;
694
695 if (active) {
696 data |= IGP02E1000_PM_D0_LPLU;
697 ret_val = e1e_wphy(hw, IGP02E1000_PHY_POWER_MGMT, data);
698 if (ret_val)
699 return ret_val;
700
701 /* When LPLU is enabled, we should disable SmartSpeed */
702 ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, &data);
703 data &= ~IGP01E1000_PSCFR_SMART_SPEED;
704 ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, data);
705 if (ret_val)
706 return ret_val;
707 } else {
708 data &= ~IGP02E1000_PM_D0_LPLU;
709 ret_val = e1e_wphy(hw, IGP02E1000_PHY_POWER_MGMT, data);
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710 /*
711 * LPLU and SmartSpeed are mutually exclusive. LPLU is used
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712 * during Dx states where the power conservation is most
713 * important. During driver activity we should enable
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714 * SmartSpeed, so performance is maintained.
715 */
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716 if (phy->smart_speed == e1000_smart_speed_on) {
717 ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG,
ad68076e 718 &data);
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719 if (ret_val)
720 return ret_val;
721
722 data |= IGP01E1000_PSCFR_SMART_SPEED;
723 ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG,
ad68076e 724 data);
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725 if (ret_val)
726 return ret_val;
727 } else if (phy->smart_speed == e1000_smart_speed_off) {
728 ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG,
ad68076e 729 &data);
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730 if (ret_val)
731 return ret_val;
732
733 data &= ~IGP01E1000_PSCFR_SMART_SPEED;
734 ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG,
ad68076e 735 data);
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736 if (ret_val)
737 return ret_val;
738 }
739 }
740
741 return 0;
742}
743
744/**
745 * e1000_reset_hw_82571 - Reset hardware
746 * @hw: pointer to the HW structure
747 *
748 * This resets the hardware into a known state. This is a
749 * function pointer entry point called by the api module.
750 **/
751static s32 e1000_reset_hw_82571(struct e1000_hw *hw)
752{
753 u32 ctrl;
754 u32 extcnf_ctrl;
755 u32 ctrl_ext;
756 u32 icr;
757 s32 ret_val;
758 u16 i = 0;
759
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760 /*
761 * Prevent the PCI-E bus from sticking if there is no TLP connection
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762 * on the last TLP read/write transaction when MAC is reset.
763 */
764 ret_val = e1000e_disable_pcie_master(hw);
765 if (ret_val)
766 hw_dbg(hw, "PCI-E Master disable polling has failed.\n");
767
768 hw_dbg(hw, "Masking off all interrupts\n");
769 ew32(IMC, 0xffffffff);
770
771 ew32(RCTL, 0);
772 ew32(TCTL, E1000_TCTL_PSP);
773 e1e_flush();
774
775 msleep(10);
776
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777 /*
778 * Must acquire the MDIO ownership before MAC reset.
779 * Ownership defaults to firmware after a reset.
780 */
4662e82b 781 if (hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574) {
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782 extcnf_ctrl = er32(EXTCNF_CTRL);
783 extcnf_ctrl |= E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP;
784
785 do {
786 ew32(EXTCNF_CTRL, extcnf_ctrl);
787 extcnf_ctrl = er32(EXTCNF_CTRL);
788
789 if (extcnf_ctrl & E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP)
790 break;
791
792 extcnf_ctrl |= E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP;
793
794 msleep(2);
795 i++;
796 } while (i < MDIO_OWNERSHIP_TIMEOUT);
797 }
798
799 ctrl = er32(CTRL);
800
801 hw_dbg(hw, "Issuing a global reset to MAC\n");
802 ew32(CTRL, ctrl | E1000_CTRL_RST);
803
804 if (hw->nvm.type == e1000_nvm_flash_hw) {
805 udelay(10);
806 ctrl_ext = er32(CTRL_EXT);
807 ctrl_ext |= E1000_CTRL_EXT_EE_RST;
808 ew32(CTRL_EXT, ctrl_ext);
809 e1e_flush();
810 }
811
812 ret_val = e1000e_get_auto_rd_done(hw);
813 if (ret_val)
814 /* We don't want to continue accessing MAC registers. */
815 return ret_val;
816
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817 /*
818 * Phy configuration from NVM just starts after EECD_AUTO_RD is set.
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819 * Need to wait for Phy configuration completion before accessing
820 * NVM and Phy.
821 */
4662e82b 822 if (hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574)
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823 msleep(25);
824
825 /* Clear any pending interrupt events. */
826 ew32(IMC, 0xffffffff);
827 icr = er32(ICR);
828
93ca1610
BH
829 if (hw->mac.type == e1000_82571 &&
830 hw->dev_spec.e82571.alt_mac_addr_is_present)
831 e1000e_set_laa_state_82571(hw, true);
832
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833 return 0;
834}
835
836/**
837 * e1000_init_hw_82571 - Initialize hardware
838 * @hw: pointer to the HW structure
839 *
840 * This inits the hardware readying it for operation.
841 **/
842static s32 e1000_init_hw_82571(struct e1000_hw *hw)
843{
844 struct e1000_mac_info *mac = &hw->mac;
845 u32 reg_data;
846 s32 ret_val;
847 u16 i;
848 u16 rar_count = mac->rar_entry_count;
849
850 e1000_initialize_hw_bits_82571(hw);
851
852 /* Initialize identification LED */
853 ret_val = e1000e_id_led_init(hw);
854 if (ret_val) {
855 hw_dbg(hw, "Error initializing identification LED\n");
856 return ret_val;
857 }
858
859 /* Disabling VLAN filtering */
860 hw_dbg(hw, "Initializing the IEEE VLAN\n");
861 e1000e_clear_vfta(hw);
862
863 /* Setup the receive address. */
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864 /*
865 * If, however, a locally administered address was assigned to the
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866 * 82571, we must reserve a RAR for it to work around an issue where
867 * resetting one port will reload the MAC on the other port.
868 */
869 if (e1000e_get_laa_state_82571(hw))
870 rar_count--;
871 e1000e_init_rx_addrs(hw, rar_count);
872
873 /* Zero out the Multicast HASH table */
874 hw_dbg(hw, "Zeroing the MTA\n");
875 for (i = 0; i < mac->mta_reg_count; i++)
876 E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, 0);
877
878 /* Setup link and flow control */
879 ret_val = e1000_setup_link_82571(hw);
880
881 /* Set the transmit descriptor write-back policy */
e9ec2c0f 882 reg_data = er32(TXDCTL(0));
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883 reg_data = (reg_data & ~E1000_TXDCTL_WTHRESH) |
884 E1000_TXDCTL_FULL_TX_DESC_WB |
885 E1000_TXDCTL_COUNT_DESC;
e9ec2c0f 886 ew32(TXDCTL(0), reg_data);
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887
888 /* ...for both queues. */
4662e82b 889 if (mac->type != e1000_82573 && mac->type != e1000_82574) {
e9ec2c0f 890 reg_data = er32(TXDCTL(1));
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891 reg_data = (reg_data & ~E1000_TXDCTL_WTHRESH) |
892 E1000_TXDCTL_FULL_TX_DESC_WB |
893 E1000_TXDCTL_COUNT_DESC;
e9ec2c0f 894 ew32(TXDCTL(1), reg_data);
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895 } else {
896 e1000e_enable_tx_pkt_filtering(hw);
897 reg_data = er32(GCR);
898 reg_data |= E1000_GCR_L1_ACT_WITHOUT_L0S_RX;
899 ew32(GCR, reg_data);
900 }
901
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902 /*
903 * Clear all of the statistics registers (clear on read). It is
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904 * important that we do this after we have tried to establish link
905 * because the symbol error count will increment wildly if there
906 * is no link.
907 */
908 e1000_clear_hw_cntrs_82571(hw);
909
910 return ret_val;
911}
912
913/**
914 * e1000_initialize_hw_bits_82571 - Initialize hardware-dependent bits
915 * @hw: pointer to the HW structure
916 *
917 * Initializes required hardware-dependent bits needed for normal operation.
918 **/
919static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw)
920{
921 u32 reg;
922
923 /* Transmit Descriptor Control 0 */
e9ec2c0f 924 reg = er32(TXDCTL(0));
bc7f75fa 925 reg |= (1 << 22);
e9ec2c0f 926 ew32(TXDCTL(0), reg);
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927
928 /* Transmit Descriptor Control 1 */
e9ec2c0f 929 reg = er32(TXDCTL(1));
bc7f75fa 930 reg |= (1 << 22);
e9ec2c0f 931 ew32(TXDCTL(1), reg);
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932
933 /* Transmit Arbitration Control 0 */
e9ec2c0f 934 reg = er32(TARC(0));
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935 reg &= ~(0xF << 27); /* 30:27 */
936 switch (hw->mac.type) {
937 case e1000_82571:
938 case e1000_82572:
939 reg |= (1 << 23) | (1 << 24) | (1 << 25) | (1 << 26);
940 break;
941 default:
942 break;
943 }
e9ec2c0f 944 ew32(TARC(0), reg);
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945
946 /* Transmit Arbitration Control 1 */
e9ec2c0f 947 reg = er32(TARC(1));
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948 switch (hw->mac.type) {
949 case e1000_82571:
950 case e1000_82572:
951 reg &= ~((1 << 29) | (1 << 30));
952 reg |= (1 << 22) | (1 << 24) | (1 << 25) | (1 << 26);
953 if (er32(TCTL) & E1000_TCTL_MULR)
954 reg &= ~(1 << 28);
955 else
956 reg |= (1 << 28);
e9ec2c0f 957 ew32(TARC(1), reg);
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958 break;
959 default:
960 break;
961 }
962
963 /* Device Control */
4662e82b 964 if (hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574) {
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965 reg = er32(CTRL);
966 reg &= ~(1 << 29);
967 ew32(CTRL, reg);
968 }
969
970 /* Extended Device Control */
4662e82b 971 if (hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574) {
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972 reg = er32(CTRL_EXT);
973 reg &= ~(1 << 23);
974 reg |= (1 << 22);
975 ew32(CTRL_EXT, reg);
976 }
4662e82b 977
6ea7ae1d
AD
978 if (hw->mac.type == e1000_82571) {
979 reg = er32(PBA_ECC);
980 reg |= E1000_PBA_ECC_CORR_EN;
981 ew32(PBA_ECC, reg);
982 }
983
78272bba 984 /* PCI-Ex Control Registers */
4662e82b
BA
985 if (hw->mac.type == e1000_82574) {
986 reg = er32(GCR);
987 reg |= (1 << 22);
988 ew32(GCR, reg);
78272bba
JB
989
990 reg = er32(GCR2);
991 reg |= 1;
992 ew32(GCR2, reg);
4662e82b
BA
993 }
994
995 return;
bc7f75fa
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996}
997
998/**
999 * e1000e_clear_vfta - Clear VLAN filter table
1000 * @hw: pointer to the HW structure
1001 *
1002 * Clears the register array which contains the VLAN filter table by
1003 * setting all the values to 0.
1004 **/
1005void e1000e_clear_vfta(struct e1000_hw *hw)
1006{
1007 u32 offset;
1008 u32 vfta_value = 0;
1009 u32 vfta_offset = 0;
1010 u32 vfta_bit_in_reg = 0;
1011
4662e82b 1012 if (hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574) {
bc7f75fa 1013 if (hw->mng_cookie.vlan_id != 0) {
ad68076e
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1014 /*
1015 * The VFTA is a 4096b bit-field, each identifying
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1016 * a single VLAN ID. The following operations
1017 * determine which 32b entry (i.e. offset) into the
1018 * array we want to set the VLAN ID (i.e. bit) of
1019 * the manageability unit.
1020 */
1021 vfta_offset = (hw->mng_cookie.vlan_id >>
1022 E1000_VFTA_ENTRY_SHIFT) &
1023 E1000_VFTA_ENTRY_MASK;
1024 vfta_bit_in_reg = 1 << (hw->mng_cookie.vlan_id &
1025 E1000_VFTA_ENTRY_BIT_SHIFT_MASK);
1026 }
1027 }
1028 for (offset = 0; offset < E1000_VLAN_FILTER_TBL_SIZE; offset++) {
ad68076e
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1029 /*
1030 * If the offset we want to clear is the same offset of the
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1031 * manageability VLAN ID, then clear all bits except that of
1032 * the manageability unit.
1033 */
1034 vfta_value = (offset == vfta_offset) ? vfta_bit_in_reg : 0;
1035 E1000_WRITE_REG_ARRAY(hw, E1000_VFTA, offset, vfta_value);
1036 e1e_flush();
1037 }
1038}
1039
4662e82b
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1040/**
1041 * e1000_check_mng_mode_82574 - Check manageability is enabled
1042 * @hw: pointer to the HW structure
1043 *
1044 * Reads the NVM Initialization Control Word 2 and returns true
1045 * (>0) if any manageability is enabled, else false (0).
1046 **/
1047static bool e1000_check_mng_mode_82574(struct e1000_hw *hw)
1048{
1049 u16 data;
1050
1051 e1000_read_nvm(hw, NVM_INIT_CONTROL2_REG, 1, &data);
1052 return (data & E1000_NVM_INIT_CTRL2_MNGM) != 0;
1053}
1054
1055/**
1056 * e1000_led_on_82574 - Turn LED on
1057 * @hw: pointer to the HW structure
1058 *
1059 * Turn LED on.
1060 **/
1061static s32 e1000_led_on_82574(struct e1000_hw *hw)
1062{
1063 u32 ctrl;
1064 u32 i;
1065
1066 ctrl = hw->mac.ledctl_mode2;
1067 if (!(E1000_STATUS_LU & er32(STATUS))) {
1068 /*
1069 * If no link, then turn LED on by setting the invert bit
1070 * for each LED that's "on" (0x0E) in ledctl_mode2.
1071 */
1072 for (i = 0; i < 4; i++)
1073 if (((hw->mac.ledctl_mode2 >> (i * 8)) & 0xFF) ==
1074 E1000_LEDCTL_MODE_LED_ON)
1075 ctrl |= (E1000_LEDCTL_LED0_IVRT << (i * 8));
1076 }
1077 ew32(LEDCTL, ctrl);
1078
1079 return 0;
1080}
1081
bc7f75fa 1082/**
e2de3eb6 1083 * e1000_update_mc_addr_list_82571 - Update Multicast addresses
bc7f75fa
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1084 * @hw: pointer to the HW structure
1085 * @mc_addr_list: array of multicast addresses to program
1086 * @mc_addr_count: number of multicast addresses to program
1087 * @rar_used_count: the first RAR register free to program
1088 * @rar_count: total number of supported Receive Address Registers
1089 *
1090 * Updates the Receive Address Registers and Multicast Table Array.
1091 * The caller must have a packed mc_addr_list of multicast addresses.
1092 * The parameter rar_count will usually be hw->mac.rar_entry_count
1093 * unless there are workarounds that change this.
1094 **/
e2de3eb6 1095static void e1000_update_mc_addr_list_82571(struct e1000_hw *hw,
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1096 u8 *mc_addr_list,
1097 u32 mc_addr_count,
1098 u32 rar_used_count,
1099 u32 rar_count)
1100{
1101 if (e1000e_get_laa_state_82571(hw))
1102 rar_count--;
1103
e2de3eb6
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1104 e1000e_update_mc_addr_list_generic(hw, mc_addr_list, mc_addr_count,
1105 rar_used_count, rar_count);
bc7f75fa
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1106}
1107
1108/**
1109 * e1000_setup_link_82571 - Setup flow control and link settings
1110 * @hw: pointer to the HW structure
1111 *
1112 * Determines which flow control settings to use, then configures flow
1113 * control. Calls the appropriate media-specific link configuration
1114 * function. Assuming the adapter has a valid link partner, a valid link
1115 * should be established. Assumes the hardware has previously been reset
1116 * and the transmitter and receiver are not enabled.
1117 **/
1118static s32 e1000_setup_link_82571(struct e1000_hw *hw)
1119{
ad68076e
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1120 /*
1121 * 82573 does not have a word in the NVM to determine
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1122 * the default flow control setting, so we explicitly
1123 * set it to full.
1124 */
4662e82b 1125 if ((hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574) &&
5c48ef3e
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1126 hw->fc.requested_mode == e1000_fc_default)
1127 hw->fc.requested_mode = e1000_fc_full;
bc7f75fa
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1128
1129 return e1000e_setup_link(hw);
1130}
1131
1132/**
1133 * e1000_setup_copper_link_82571 - Configure copper link settings
1134 * @hw: pointer to the HW structure
1135 *
1136 * Configures the link for auto-neg or forced speed and duplex. Then we check
1137 * for link, once link is established calls to configure collision distance
1138 * and flow control are called.
1139 **/
1140static s32 e1000_setup_copper_link_82571(struct e1000_hw *hw)
1141{
1142 u32 ctrl;
1143 u32 led_ctrl;
1144 s32 ret_val;
1145
1146 ctrl = er32(CTRL);
1147 ctrl |= E1000_CTRL_SLU;
1148 ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
1149 ew32(CTRL, ctrl);
1150
1151 switch (hw->phy.type) {
1152 case e1000_phy_m88:
4662e82b 1153 case e1000_phy_bm:
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1154 ret_val = e1000e_copper_link_setup_m88(hw);
1155 break;
1156 case e1000_phy_igp_2:
1157 ret_val = e1000e_copper_link_setup_igp(hw);
1158 /* Setup activity LED */
1159 led_ctrl = er32(LEDCTL);
1160 led_ctrl &= IGP_ACTIVITY_LED_MASK;
1161 led_ctrl |= (IGP_ACTIVITY_LED_ENABLE | IGP_LED3_MODE);
1162 ew32(LEDCTL, led_ctrl);
1163 break;
1164 default:
1165 return -E1000_ERR_PHY;
1166 break;
1167 }
1168
1169 if (ret_val)
1170 return ret_val;
1171
1172 ret_val = e1000e_setup_copper_link(hw);
1173
1174 return ret_val;
1175}
1176
1177/**
1178 * e1000_setup_fiber_serdes_link_82571 - Setup link for fiber/serdes
1179 * @hw: pointer to the HW structure
1180 *
1181 * Configures collision distance and flow control for fiber and serdes links.
1182 * Upon successful setup, poll for link.
1183 **/
1184static s32 e1000_setup_fiber_serdes_link_82571(struct e1000_hw *hw)
1185{
1186 switch (hw->mac.type) {
1187 case e1000_82571:
1188 case e1000_82572:
ad68076e
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1189 /*
1190 * If SerDes loopback mode is entered, there is no form
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1191 * of reset to take the adapter out of that mode. So we
1192 * have to explicitly take the adapter out of loopback
489815ce 1193 * mode. This prevents drivers from twiddling their thumbs
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1194 * if another tool failed to take it out of loopback mode.
1195 */
ad68076e 1196 ew32(SCTL, E1000_SCTL_DISABLE_SERDES_LOOPBACK);
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1197 break;
1198 default:
1199 break;
1200 }
1201
1202 return e1000e_setup_fiber_serdes_link(hw);
1203}
1204
1205/**
1206 * e1000_valid_led_default_82571 - Verify a valid default LED config
1207 * @hw: pointer to the HW structure
1208 * @data: pointer to the NVM (EEPROM)
1209 *
1210 * Read the EEPROM for the current default LED configuration. If the
1211 * LED configuration is not valid, set to a valid LED configuration.
1212 **/
1213static s32 e1000_valid_led_default_82571(struct e1000_hw *hw, u16 *data)
1214{
1215 s32 ret_val;
1216
1217 ret_val = e1000_read_nvm(hw, NVM_ID_LED_SETTINGS, 1, data);
1218 if (ret_val) {
1219 hw_dbg(hw, "NVM Read Error\n");
1220 return ret_val;
1221 }
1222
4662e82b 1223 if ((hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574) &&
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1224 *data == ID_LED_RESERVED_F746)
1225 *data = ID_LED_DEFAULT_82573;
4662e82b 1226 else if (*data == ID_LED_RESERVED_0000 || *data == ID_LED_RESERVED_FFFF)
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1227 *data = ID_LED_DEFAULT;
1228
1229 return 0;
1230}
1231
1232/**
1233 * e1000e_get_laa_state_82571 - Get locally administered address state
1234 * @hw: pointer to the HW structure
1235 *
489815ce 1236 * Retrieve and return the current locally administered address state.
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1237 **/
1238bool e1000e_get_laa_state_82571(struct e1000_hw *hw)
1239{
1240 if (hw->mac.type != e1000_82571)
1241 return 0;
1242
1243 return hw->dev_spec.e82571.laa_is_present;
1244}
1245
1246/**
1247 * e1000e_set_laa_state_82571 - Set locally administered address state
1248 * @hw: pointer to the HW structure
1249 * @state: enable/disable locally administered address
1250 *
489815ce 1251 * Enable/Disable the current locally administers address state.
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1252 **/
1253void e1000e_set_laa_state_82571(struct e1000_hw *hw, bool state)
1254{
1255 if (hw->mac.type != e1000_82571)
1256 return;
1257
1258 hw->dev_spec.e82571.laa_is_present = state;
1259
1260 /* If workaround is activated... */
1261 if (state)
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1262 /*
1263 * Hold a copy of the LAA in RAR[14] This is done so that
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1264 * between the time RAR[0] gets clobbered and the time it
1265 * gets fixed, the actual LAA is in one of the RARs and no
1266 * incoming packets directed to this port are dropped.
1267 * Eventually the LAA will be in RAR[0] and RAR[14].
1268 */
1269 e1000e_rar_set(hw, hw->mac.addr, hw->mac.rar_entry_count - 1);
1270}
1271
1272/**
1273 * e1000_fix_nvm_checksum_82571 - Fix EEPROM checksum
1274 * @hw: pointer to the HW structure
1275 *
1276 * Verifies that the EEPROM has completed the update. After updating the
1277 * EEPROM, we need to check bit 15 in work 0x23 for the checksum fix. If
1278 * the checksum fix is not implemented, we need to set the bit and update
1279 * the checksum. Otherwise, if bit 15 is set and the checksum is incorrect,
1280 * we need to return bad checksum.
1281 **/
1282static s32 e1000_fix_nvm_checksum_82571(struct e1000_hw *hw)
1283{
1284 struct e1000_nvm_info *nvm = &hw->nvm;
1285 s32 ret_val;
1286 u16 data;
1287
1288 if (nvm->type != e1000_nvm_flash_hw)
1289 return 0;
1290
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1291 /*
1292 * Check bit 4 of word 10h. If it is 0, firmware is done updating
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1293 * 10h-12h. Checksum may need to be fixed.
1294 */
1295 ret_val = e1000_read_nvm(hw, 0x10, 1, &data);
1296 if (ret_val)
1297 return ret_val;
1298
1299 if (!(data & 0x10)) {
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1300 /*
1301 * Read 0x23 and check bit 15. This bit is a 1
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1302 * when the checksum has already been fixed. If
1303 * the checksum is still wrong and this bit is a
1304 * 1, we need to return bad checksum. Otherwise,
1305 * we need to set this bit to a 1 and update the
1306 * checksum.
1307 */
1308 ret_val = e1000_read_nvm(hw, 0x23, 1, &data);
1309 if (ret_val)
1310 return ret_val;
1311
1312 if (!(data & 0x8000)) {
1313 data |= 0x8000;
1314 ret_val = e1000_write_nvm(hw, 0x23, 1, &data);
1315 if (ret_val)
1316 return ret_val;
1317 ret_val = e1000e_update_nvm_checksum(hw);
1318 }
1319 }
1320
1321 return 0;
1322}
1323
1324/**
1325 * e1000_clear_hw_cntrs_82571 - Clear device specific hardware counters
1326 * @hw: pointer to the HW structure
1327 *
1328 * Clears the hardware counters by reading the counter registers.
1329 **/
1330static void e1000_clear_hw_cntrs_82571(struct e1000_hw *hw)
1331{
1332 u32 temp;
1333
1334 e1000e_clear_hw_cntrs_base(hw);
1335
1336 temp = er32(PRC64);
1337 temp = er32(PRC127);
1338 temp = er32(PRC255);
1339 temp = er32(PRC511);
1340 temp = er32(PRC1023);
1341 temp = er32(PRC1522);
1342 temp = er32(PTC64);
1343 temp = er32(PTC127);
1344 temp = er32(PTC255);
1345 temp = er32(PTC511);
1346 temp = er32(PTC1023);
1347 temp = er32(PTC1522);
1348
1349 temp = er32(ALGNERRC);
1350 temp = er32(RXERRC);
1351 temp = er32(TNCRS);
1352 temp = er32(CEXTERR);
1353 temp = er32(TSCTC);
1354 temp = er32(TSCTFC);
1355
1356 temp = er32(MGTPRC);
1357 temp = er32(MGTPDC);
1358 temp = er32(MGTPTC);
1359
1360 temp = er32(IAC);
1361 temp = er32(ICRXOC);
1362
1363 temp = er32(ICRXPTC);
1364 temp = er32(ICRXATC);
1365 temp = er32(ICTXPTC);
1366 temp = er32(ICTXATC);
1367 temp = er32(ICTXQEC);
1368 temp = er32(ICTXQMTC);
1369 temp = er32(ICRXDMTC);
1370}
1371
1372static struct e1000_mac_operations e82571_mac_ops = {
4662e82b 1373 /* .check_mng_mode: mac type dependent */
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1374 /* .check_for_link: media type dependent */
1375 .cleanup_led = e1000e_cleanup_led_generic,
1376 .clear_hw_cntrs = e1000_clear_hw_cntrs_82571,
1377 .get_bus_info = e1000e_get_bus_info_pcie,
1378 /* .get_link_up_info: media type dependent */
4662e82b 1379 /* .led_on: mac type dependent */
bc7f75fa 1380 .led_off = e1000e_led_off_generic,
e2de3eb6 1381 .update_mc_addr_list = e1000_update_mc_addr_list_82571,
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1382 .reset_hw = e1000_reset_hw_82571,
1383 .init_hw = e1000_init_hw_82571,
1384 .setup_link = e1000_setup_link_82571,
1385 /* .setup_physical_interface: media type dependent */
1386};
1387
1388static struct e1000_phy_operations e82_phy_ops_igp = {
1389 .acquire_phy = e1000_get_hw_semaphore_82571,
1390 .check_reset_block = e1000e_check_reset_block_generic,
1391 .commit_phy = NULL,
1392 .force_speed_duplex = e1000e_phy_force_speed_duplex_igp,
1393 .get_cfg_done = e1000_get_cfg_done_82571,
1394 .get_cable_length = e1000e_get_cable_length_igp_2,
1395 .get_phy_info = e1000e_get_phy_info_igp,
1396 .read_phy_reg = e1000e_read_phy_reg_igp,
1397 .release_phy = e1000_put_hw_semaphore_82571,
1398 .reset_phy = e1000e_phy_hw_reset_generic,
1399 .set_d0_lplu_state = e1000_set_d0_lplu_state_82571,
1400 .set_d3_lplu_state = e1000e_set_d3_lplu_state,
1401 .write_phy_reg = e1000e_write_phy_reg_igp,
75eb0fad 1402 .cfg_on_link_up = NULL,
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1403};
1404
1405static struct e1000_phy_operations e82_phy_ops_m88 = {
1406 .acquire_phy = e1000_get_hw_semaphore_82571,
1407 .check_reset_block = e1000e_check_reset_block_generic,
1408 .commit_phy = e1000e_phy_sw_reset,
1409 .force_speed_duplex = e1000e_phy_force_speed_duplex_m88,
1410 .get_cfg_done = e1000e_get_cfg_done,
1411 .get_cable_length = e1000e_get_cable_length_m88,
1412 .get_phy_info = e1000e_get_phy_info_m88,
1413 .read_phy_reg = e1000e_read_phy_reg_m88,
1414 .release_phy = e1000_put_hw_semaphore_82571,
1415 .reset_phy = e1000e_phy_hw_reset_generic,
1416 .set_d0_lplu_state = e1000_set_d0_lplu_state_82571,
1417 .set_d3_lplu_state = e1000e_set_d3_lplu_state,
1418 .write_phy_reg = e1000e_write_phy_reg_m88,
75eb0fad 1419 .cfg_on_link_up = NULL,
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1420};
1421
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1422static struct e1000_phy_operations e82_phy_ops_bm = {
1423 .acquire_phy = e1000_get_hw_semaphore_82571,
1424 .check_reset_block = e1000e_check_reset_block_generic,
1425 .commit_phy = e1000e_phy_sw_reset,
1426 .force_speed_duplex = e1000e_phy_force_speed_duplex_m88,
1427 .get_cfg_done = e1000e_get_cfg_done,
1428 .get_cable_length = e1000e_get_cable_length_m88,
1429 .get_phy_info = e1000e_get_phy_info_m88,
1430 .read_phy_reg = e1000e_read_phy_reg_bm2,
1431 .release_phy = e1000_put_hw_semaphore_82571,
1432 .reset_phy = e1000e_phy_hw_reset_generic,
1433 .set_d0_lplu_state = e1000_set_d0_lplu_state_82571,
1434 .set_d3_lplu_state = e1000e_set_d3_lplu_state,
1435 .write_phy_reg = e1000e_write_phy_reg_bm2,
75eb0fad 1436 .cfg_on_link_up = NULL,
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1437};
1438
bc7f75fa 1439static struct e1000_nvm_operations e82571_nvm_ops = {
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1440 .acquire_nvm = e1000_acquire_nvm_82571,
1441 .read_nvm = e1000e_read_nvm_eerd,
1442 .release_nvm = e1000_release_nvm_82571,
1443 .update_nvm = e1000_update_nvm_checksum_82571,
1444 .valid_led_default = e1000_valid_led_default_82571,
1445 .validate_nvm = e1000_validate_nvm_checksum_82571,
1446 .write_nvm = e1000_write_nvm_82571,
1447};
1448
1449struct e1000_info e1000_82571_info = {
1450 .mac = e1000_82571,
1451 .flags = FLAG_HAS_HW_VLAN_FILTER
1452 | FLAG_HAS_JUMBO_FRAMES
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1453 | FLAG_HAS_WOL
1454 | FLAG_APME_IN_CTRL3
1455 | FLAG_RX_CSUM_ENABLED
1456 | FLAG_HAS_CTRLEXT_ON_LOAD
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1457 | FLAG_HAS_SMART_POWER_DOWN
1458 | FLAG_RESET_OVERWRITES_LAA /* errata */
1459 | FLAG_TARC_SPEED_MODE_BIT /* errata */
1460 | FLAG_APME_CHECK_PORT_B,
1461 .pba = 38,
69e3fd8c 1462 .get_variants = e1000_get_variants_82571,
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1463 .mac_ops = &e82571_mac_ops,
1464 .phy_ops = &e82_phy_ops_igp,
1465 .nvm_ops = &e82571_nvm_ops,
1466};
1467
1468struct e1000_info e1000_82572_info = {
1469 .mac = e1000_82572,
1470 .flags = FLAG_HAS_HW_VLAN_FILTER
1471 | FLAG_HAS_JUMBO_FRAMES
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1472 | FLAG_HAS_WOL
1473 | FLAG_APME_IN_CTRL3
1474 | FLAG_RX_CSUM_ENABLED
1475 | FLAG_HAS_CTRLEXT_ON_LOAD
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1476 | FLAG_TARC_SPEED_MODE_BIT, /* errata */
1477 .pba = 38,
69e3fd8c 1478 .get_variants = e1000_get_variants_82571,
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1479 .mac_ops = &e82571_mac_ops,
1480 .phy_ops = &e82_phy_ops_igp,
1481 .nvm_ops = &e82571_nvm_ops,
1482};
1483
1484struct e1000_info e1000_82573_info = {
1485 .mac = e1000_82573,
1486 .flags = FLAG_HAS_HW_VLAN_FILTER
1487 | FLAG_HAS_JUMBO_FRAMES
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1488 | FLAG_HAS_WOL
1489 | FLAG_APME_IN_CTRL3
1490 | FLAG_RX_CSUM_ENABLED
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1491 | FLAG_HAS_SMART_POWER_DOWN
1492 | FLAG_HAS_AMT
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1493 | FLAG_HAS_ERT
1494 | FLAG_HAS_SWSM_ON_LOAD,
1495 .pba = 20,
69e3fd8c 1496 .get_variants = e1000_get_variants_82571,
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1497 .mac_ops = &e82571_mac_ops,
1498 .phy_ops = &e82_phy_ops_m88,
31f8c4fe 1499 .nvm_ops = &e82571_nvm_ops,
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1500};
1501
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1502struct e1000_info e1000_82574_info = {
1503 .mac = e1000_82574,
1504 .flags = FLAG_HAS_HW_VLAN_FILTER
1505 | FLAG_HAS_MSIX
1506 | FLAG_HAS_JUMBO_FRAMES
1507 | FLAG_HAS_WOL
1508 | FLAG_APME_IN_CTRL3
1509 | FLAG_RX_CSUM_ENABLED
1510 | FLAG_HAS_SMART_POWER_DOWN
1511 | FLAG_HAS_AMT
1512 | FLAG_HAS_CTRLEXT_ON_LOAD,
1513 .pba = 20,
1514 .get_variants = e1000_get_variants_82571,
1515 .mac_ops = &e82571_mac_ops,
1516 .phy_ops = &e82_phy_ops_bm,
1517 .nvm_ops = &e82571_nvm_ops,
1518};
1519