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9d5c8243 AK |
1 | /******************************************************************************* |
2 | ||
3 | Intel(R) Gigabit Ethernet Linux driver | |
4b9ea462 | 4 | Copyright(c) 2007-2013 Intel Corporation. |
9d5c8243 AK |
5 | |
6 | This program is free software; you can redistribute it and/or modify it | |
7 | under the terms and conditions of the GNU General Public License, | |
8 | version 2, as published by the Free Software Foundation. | |
9 | ||
10 | This program is distributed in the hope it will be useful, but WITHOUT | |
11 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
12 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
13 | more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License along with | |
16 | this program; if not, write to the Free Software Foundation, Inc., | |
17 | 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. | |
18 | ||
19 | The full GNU General Public License is included in this distribution in | |
20 | the file called "COPYING". | |
21 | ||
22 | Contact Information: | |
23 | e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> | |
24 | Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
25 | ||
26 | *******************************************************************************/ | |
27 | ||
28 | /* e1000_82575 | |
29 | * e1000_82576 | |
30 | */ | |
31 | ||
82bbcdeb JP |
32 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
33 | ||
9d5c8243 | 34 | #include <linux/types.h> |
2d064c06 | 35 | #include <linux/if_ether.h> |
441fc6fd | 36 | #include <linux/i2c.h> |
9d5c8243 AK |
37 | |
38 | #include "e1000_mac.h" | |
39 | #include "e1000_82575.h" | |
f96a8a0b | 40 | #include "e1000_i210.h" |
9d5c8243 AK |
41 | |
42 | static s32 igb_get_invariants_82575(struct e1000_hw *); | |
43 | static s32 igb_acquire_phy_82575(struct e1000_hw *); | |
44 | static void igb_release_phy_82575(struct e1000_hw *); | |
45 | static s32 igb_acquire_nvm_82575(struct e1000_hw *); | |
46 | static void igb_release_nvm_82575(struct e1000_hw *); | |
47 | static s32 igb_check_for_link_82575(struct e1000_hw *); | |
48 | static s32 igb_get_cfg_done_82575(struct e1000_hw *); | |
49 | static s32 igb_init_hw_82575(struct e1000_hw *); | |
50 | static s32 igb_phy_hw_reset_sgmii_82575(struct e1000_hw *); | |
51 | static s32 igb_read_phy_reg_sgmii_82575(struct e1000_hw *, u32, u16 *); | |
bb2ac47b AD |
52 | static s32 igb_read_phy_reg_82580(struct e1000_hw *, u32, u16 *); |
53 | static s32 igb_write_phy_reg_82580(struct e1000_hw *, u32, u16); | |
9d5c8243 | 54 | static s32 igb_reset_hw_82575(struct e1000_hw *); |
bb2ac47b | 55 | static s32 igb_reset_hw_82580(struct e1000_hw *); |
9d5c8243 | 56 | static s32 igb_set_d0_lplu_state_82575(struct e1000_hw *, bool); |
da02cde1 CW |
57 | static s32 igb_set_d0_lplu_state_82580(struct e1000_hw *, bool); |
58 | static s32 igb_set_d3_lplu_state_82580(struct e1000_hw *, bool); | |
9d5c8243 | 59 | static s32 igb_setup_copper_link_82575(struct e1000_hw *); |
2fb02a26 | 60 | static s32 igb_setup_serdes_link_82575(struct e1000_hw *); |
9d5c8243 AK |
61 | static s32 igb_write_phy_reg_sgmii_82575(struct e1000_hw *, u32, u16); |
62 | static void igb_clear_hw_cntrs_82575(struct e1000_hw *); | |
63 | static s32 igb_acquire_swfw_sync_82575(struct e1000_hw *, u16); | |
9d5c8243 AK |
64 | static s32 igb_get_pcs_speed_and_duplex_82575(struct e1000_hw *, u16 *, |
65 | u16 *); | |
66 | static s32 igb_get_phy_id_82575(struct e1000_hw *); | |
67 | static void igb_release_swfw_sync_82575(struct e1000_hw *, u16); | |
68 | static bool igb_sgmii_active_82575(struct e1000_hw *); | |
69 | static s32 igb_reset_init_script_82575(struct e1000_hw *); | |
70 | static s32 igb_read_mac_addr_82575(struct e1000_hw *); | |
009bc06e | 71 | static s32 igb_set_pcie_completion_timeout(struct e1000_hw *hw); |
99870a73 | 72 | static s32 igb_reset_mdicnfg_82580(struct e1000_hw *hw); |
4322e561 CW |
73 | static s32 igb_validate_nvm_checksum_82580(struct e1000_hw *hw); |
74 | static s32 igb_update_nvm_checksum_82580(struct e1000_hw *hw); | |
4322e561 CW |
75 | static s32 igb_validate_nvm_checksum_i350(struct e1000_hw *hw); |
76 | static s32 igb_update_nvm_checksum_i350(struct e1000_hw *hw); | |
bb2ac47b AD |
77 | static const u16 e1000_82580_rxpbs_table[] = |
78 | { 36, 72, 144, 1, 2, 4, 8, 16, | |
79 | 35, 70, 140 }; | |
80 | #define E1000_82580_RXPBS_TABLE_SIZE \ | |
81 | (sizeof(e1000_82580_rxpbs_table)/sizeof(u16)) | |
82 | ||
4085f746 NN |
83 | /** |
84 | * igb_sgmii_uses_mdio_82575 - Determine if I2C pins are for external MDIO | |
85 | * @hw: pointer to the HW structure | |
86 | * | |
87 | * Called to determine if the I2C pins are being used for I2C or as an | |
88 | * external MDIO interface since the two options are mutually exclusive. | |
89 | **/ | |
90 | static bool igb_sgmii_uses_mdio_82575(struct e1000_hw *hw) | |
91 | { | |
92 | u32 reg = 0; | |
93 | bool ext_mdio = false; | |
94 | ||
95 | switch (hw->mac.type) { | |
96 | case e1000_82575: | |
97 | case e1000_82576: | |
98 | reg = rd32(E1000_MDIC); | |
99 | ext_mdio = !!(reg & E1000_MDIC_DEST); | |
100 | break; | |
101 | case e1000_82580: | |
102 | case e1000_i350: | |
ceb5f13b | 103 | case e1000_i354: |
f96a8a0b CW |
104 | case e1000_i210: |
105 | case e1000_i211: | |
4085f746 NN |
106 | reg = rd32(E1000_MDICNFG); |
107 | ext_mdio = !!(reg & E1000_MDICNFG_EXT_MDIO); | |
108 | break; | |
109 | default: | |
110 | break; | |
111 | } | |
112 | return ext_mdio; | |
113 | } | |
114 | ||
73bfcd9a AA |
115 | /** |
116 | * igb_init_phy_params_82575 - Init PHY func ptrs. | |
117 | * @hw: pointer to the HW structure | |
118 | **/ | |
119 | static s32 igb_init_phy_params_82575(struct e1000_hw *hw) | |
120 | { | |
121 | struct e1000_phy_info *phy = &hw->phy; | |
122 | s32 ret_val = 0; | |
123 | u32 ctrl_ext; | |
124 | ||
125 | if (hw->phy.media_type != e1000_media_type_copper) { | |
126 | phy->type = e1000_phy_none; | |
127 | goto out; | |
128 | } | |
129 | ||
130 | phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT; | |
131 | phy->reset_delay_us = 100; | |
132 | ||
133 | ctrl_ext = rd32(E1000_CTRL_EXT); | |
134 | ||
135 | if (igb_sgmii_active_82575(hw)) { | |
136 | phy->ops.reset = igb_phy_hw_reset_sgmii_82575; | |
137 | ctrl_ext |= E1000_CTRL_I2C_ENA; | |
138 | } else { | |
139 | phy->ops.reset = igb_phy_hw_reset; | |
140 | ctrl_ext &= ~E1000_CTRL_I2C_ENA; | |
141 | } | |
142 | ||
143 | wr32(E1000_CTRL_EXT, ctrl_ext); | |
144 | igb_reset_mdicnfg_82580(hw); | |
145 | ||
146 | if (igb_sgmii_active_82575(hw) && !igb_sgmii_uses_mdio_82575(hw)) { | |
147 | phy->ops.read_reg = igb_read_phy_reg_sgmii_82575; | |
148 | phy->ops.write_reg = igb_write_phy_reg_sgmii_82575; | |
149 | } else { | |
150 | switch (hw->mac.type) { | |
151 | case e1000_82580: | |
152 | case e1000_i350: | |
ceb5f13b | 153 | case e1000_i354: |
73bfcd9a AA |
154 | phy->ops.read_reg = igb_read_phy_reg_82580; |
155 | phy->ops.write_reg = igb_write_phy_reg_82580; | |
156 | break; | |
157 | case e1000_i210: | |
158 | case e1000_i211: | |
159 | phy->ops.read_reg = igb_read_phy_reg_gs40g; | |
160 | phy->ops.write_reg = igb_write_phy_reg_gs40g; | |
161 | break; | |
162 | default: | |
163 | phy->ops.read_reg = igb_read_phy_reg_igp; | |
164 | phy->ops.write_reg = igb_write_phy_reg_igp; | |
165 | } | |
166 | } | |
167 | ||
168 | /* set lan id */ | |
169 | hw->bus.func = (rd32(E1000_STATUS) & E1000_STATUS_FUNC_MASK) >> | |
170 | E1000_STATUS_FUNC_SHIFT; | |
171 | ||
172 | /* Set phy->phy_addr and phy->id. */ | |
173 | ret_val = igb_get_phy_id_82575(hw); | |
174 | if (ret_val) | |
175 | return ret_val; | |
176 | ||
177 | /* Verify phy id and set remaining function pointers */ | |
178 | switch (phy->id) { | |
ceb5f13b | 179 | case M88E1545_E_PHY_ID: |
73bfcd9a AA |
180 | case I347AT4_E_PHY_ID: |
181 | case M88E1112_E_PHY_ID: | |
182 | case M88E1111_I_PHY_ID: | |
183 | phy->type = e1000_phy_m88; | |
ceb5f13b | 184 | phy->ops.check_polarity = igb_check_polarity_m88; |
73bfcd9a | 185 | phy->ops.get_phy_info = igb_get_phy_info_m88; |
ceb5f13b | 186 | if (phy->id != M88E1111_I_PHY_ID) |
73bfcd9a AA |
187 | phy->ops.get_cable_length = |
188 | igb_get_cable_length_m88_gen2; | |
189 | else | |
190 | phy->ops.get_cable_length = igb_get_cable_length_m88; | |
191 | phy->ops.force_speed_duplex = igb_phy_force_speed_duplex_m88; | |
192 | break; | |
193 | case IGP03E1000_E_PHY_ID: | |
194 | phy->type = e1000_phy_igp_3; | |
195 | phy->ops.get_phy_info = igb_get_phy_info_igp; | |
196 | phy->ops.get_cable_length = igb_get_cable_length_igp_2; | |
197 | phy->ops.force_speed_duplex = igb_phy_force_speed_duplex_igp; | |
198 | phy->ops.set_d0_lplu_state = igb_set_d0_lplu_state_82575; | |
199 | phy->ops.set_d3_lplu_state = igb_set_d3_lplu_state; | |
200 | break; | |
201 | case I82580_I_PHY_ID: | |
202 | case I350_I_PHY_ID: | |
203 | phy->type = e1000_phy_82580; | |
204 | phy->ops.force_speed_duplex = | |
205 | igb_phy_force_speed_duplex_82580; | |
206 | phy->ops.get_cable_length = igb_get_cable_length_82580; | |
207 | phy->ops.get_phy_info = igb_get_phy_info_82580; | |
208 | phy->ops.set_d0_lplu_state = igb_set_d0_lplu_state_82580; | |
209 | phy->ops.set_d3_lplu_state = igb_set_d3_lplu_state_82580; | |
210 | break; | |
211 | case I210_I_PHY_ID: | |
212 | phy->type = e1000_phy_i210; | |
213 | phy->ops.check_polarity = igb_check_polarity_m88; | |
214 | phy->ops.get_phy_info = igb_get_phy_info_m88; | |
215 | phy->ops.get_cable_length = igb_get_cable_length_m88_gen2; | |
216 | phy->ops.set_d0_lplu_state = igb_set_d0_lplu_state_82580; | |
217 | phy->ops.set_d3_lplu_state = igb_set_d3_lplu_state_82580; | |
218 | phy->ops.force_speed_duplex = igb_phy_force_speed_duplex_m88; | |
219 | break; | |
220 | default: | |
221 | ret_val = -E1000_ERR_PHY; | |
222 | goto out; | |
223 | } | |
224 | ||
225 | out: | |
226 | return ret_val; | |
227 | } | |
228 | ||
56d8c27f AA |
229 | /** |
230 | * igb_init_nvm_params_82575 - Init NVM func ptrs. | |
231 | * @hw: pointer to the HW structure | |
232 | **/ | |
c8268921 | 233 | static s32 igb_init_nvm_params_82575(struct e1000_hw *hw) |
56d8c27f AA |
234 | { |
235 | struct e1000_nvm_info *nvm = &hw->nvm; | |
236 | u32 eecd = rd32(E1000_EECD); | |
237 | u16 size; | |
238 | ||
239 | size = (u16)((eecd & E1000_EECD_SIZE_EX_MASK) >> | |
240 | E1000_EECD_SIZE_EX_SHIFT); | |
241 | /* Added to a constant, "size" becomes the left-shift value | |
242 | * for setting word_size. | |
243 | */ | |
244 | size += NVM_WORD_SIZE_BASE_SHIFT; | |
245 | ||
246 | /* Just in case size is out of range, cap it to the largest | |
247 | * EEPROM size supported | |
248 | */ | |
249 | if (size > 15) | |
250 | size = 15; | |
251 | ||
252 | nvm->word_size = 1 << size; | |
253 | if (hw->mac.type < e1000_i210) { | |
254 | nvm->opcode_bits = 8; | |
255 | nvm->delay_usec = 1; | |
256 | ||
257 | switch (nvm->override) { | |
258 | case e1000_nvm_override_spi_large: | |
259 | nvm->page_size = 32; | |
260 | nvm->address_bits = 16; | |
261 | break; | |
262 | case e1000_nvm_override_spi_small: | |
263 | nvm->page_size = 8; | |
264 | nvm->address_bits = 8; | |
265 | break; | |
266 | default: | |
267 | nvm->page_size = eecd & E1000_EECD_ADDR_BITS ? 32 : 8; | |
268 | nvm->address_bits = eecd & E1000_EECD_ADDR_BITS ? | |
269 | 16 : 8; | |
270 | break; | |
271 | } | |
272 | if (nvm->word_size == (1 << 15)) | |
273 | nvm->page_size = 128; | |
274 | ||
275 | nvm->type = e1000_nvm_eeprom_spi; | |
276 | } else { | |
277 | nvm->type = e1000_nvm_flash_hw; | |
278 | } | |
279 | ||
280 | /* NVM Function Pointers */ | |
281 | switch (hw->mac.type) { | |
282 | case e1000_82580: | |
283 | nvm->ops.validate = igb_validate_nvm_checksum_82580; | |
284 | nvm->ops.update = igb_update_nvm_checksum_82580; | |
285 | nvm->ops.acquire = igb_acquire_nvm_82575; | |
286 | nvm->ops.release = igb_release_nvm_82575; | |
287 | if (nvm->word_size < (1 << 15)) | |
288 | nvm->ops.read = igb_read_nvm_eerd; | |
289 | else | |
290 | nvm->ops.read = igb_read_nvm_spi; | |
291 | nvm->ops.write = igb_write_nvm_spi; | |
292 | break; | |
ceb5f13b | 293 | case e1000_i354: |
56d8c27f AA |
294 | case e1000_i350: |
295 | nvm->ops.validate = igb_validate_nvm_checksum_i350; | |
296 | nvm->ops.update = igb_update_nvm_checksum_i350; | |
297 | nvm->ops.acquire = igb_acquire_nvm_82575; | |
298 | nvm->ops.release = igb_release_nvm_82575; | |
299 | if (nvm->word_size < (1 << 15)) | |
300 | nvm->ops.read = igb_read_nvm_eerd; | |
301 | else | |
302 | nvm->ops.read = igb_read_nvm_spi; | |
303 | nvm->ops.write = igb_write_nvm_spi; | |
304 | break; | |
305 | case e1000_i210: | |
306 | nvm->ops.validate = igb_validate_nvm_checksum_i210; | |
307 | nvm->ops.update = igb_update_nvm_checksum_i210; | |
308 | nvm->ops.acquire = igb_acquire_nvm_i210; | |
309 | nvm->ops.release = igb_release_nvm_i210; | |
310 | nvm->ops.read = igb_read_nvm_srrd_i210; | |
311 | nvm->ops.write = igb_write_nvm_srwr_i210; | |
312 | nvm->ops.valid_led_default = igb_valid_led_default_i210; | |
313 | break; | |
314 | case e1000_i211: | |
315 | nvm->ops.acquire = igb_acquire_nvm_i210; | |
316 | nvm->ops.release = igb_release_nvm_i210; | |
317 | nvm->ops.read = igb_read_nvm_i211; | |
318 | nvm->ops.valid_led_default = igb_valid_led_default_i210; | |
319 | nvm->ops.validate = NULL; | |
320 | nvm->ops.update = NULL; | |
321 | nvm->ops.write = NULL; | |
322 | break; | |
323 | default: | |
324 | nvm->ops.validate = igb_validate_nvm_checksum; | |
325 | nvm->ops.update = igb_update_nvm_checksum; | |
326 | nvm->ops.acquire = igb_acquire_nvm_82575; | |
327 | nvm->ops.release = igb_release_nvm_82575; | |
328 | if (nvm->word_size < (1 << 15)) | |
329 | nvm->ops.read = igb_read_nvm_eerd; | |
330 | else | |
331 | nvm->ops.read = igb_read_nvm_spi; | |
332 | nvm->ops.write = igb_write_nvm_spi; | |
333 | break; | |
334 | } | |
335 | ||
336 | return 0; | |
337 | } | |
338 | ||
a1bf1f44 AA |
339 | /** |
340 | * igb_init_mac_params_82575 - Init MAC func ptrs. | |
341 | * @hw: pointer to the HW structure | |
342 | **/ | |
343 | static s32 igb_init_mac_params_82575(struct e1000_hw *hw) | |
344 | { | |
345 | struct e1000_mac_info *mac = &hw->mac; | |
346 | struct e1000_dev_spec_82575 *dev_spec = &hw->dev_spec._82575; | |
347 | ||
348 | /* Set mta register count */ | |
349 | mac->mta_reg_count = 128; | |
350 | /* Set rar entry count */ | |
351 | switch (mac->type) { | |
352 | case e1000_82576: | |
353 | mac->rar_entry_count = E1000_RAR_ENTRIES_82576; | |
354 | break; | |
355 | case e1000_82580: | |
356 | mac->rar_entry_count = E1000_RAR_ENTRIES_82580; | |
357 | break; | |
358 | case e1000_i350: | |
ceb5f13b | 359 | case e1000_i354: |
a1bf1f44 AA |
360 | mac->rar_entry_count = E1000_RAR_ENTRIES_I350; |
361 | break; | |
362 | default: | |
363 | mac->rar_entry_count = E1000_RAR_ENTRIES_82575; | |
364 | break; | |
365 | } | |
366 | /* reset */ | |
367 | if (mac->type >= e1000_82580) | |
368 | mac->ops.reset_hw = igb_reset_hw_82580; | |
369 | else | |
370 | mac->ops.reset_hw = igb_reset_hw_82575; | |
371 | ||
372 | if (mac->type >= e1000_i210) { | |
373 | mac->ops.acquire_swfw_sync = igb_acquire_swfw_sync_i210; | |
374 | mac->ops.release_swfw_sync = igb_release_swfw_sync_i210; | |
375 | ||
376 | } else { | |
377 | mac->ops.acquire_swfw_sync = igb_acquire_swfw_sync_82575; | |
378 | mac->ops.release_swfw_sync = igb_release_swfw_sync_82575; | |
379 | } | |
380 | ||
381 | /* Set if part includes ASF firmware */ | |
382 | mac->asf_firmware_present = true; | |
383 | /* Set if manageability features are enabled. */ | |
384 | mac->arc_subsystem_valid = | |
385 | (rd32(E1000_FWSM) & E1000_FWSM_MODE_MASK) | |
386 | ? true : false; | |
387 | /* enable EEE on i350 parts and later parts */ | |
388 | if (mac->type >= e1000_i350) | |
389 | dev_spec->eee_disable = false; | |
390 | else | |
391 | dev_spec->eee_disable = true; | |
d44e7a9a MV |
392 | /* Allow a single clear of the SW semaphore on I210 and newer */ |
393 | if (mac->type >= e1000_i210) | |
394 | dev_spec->clear_semaphore_once = true; | |
a1bf1f44 AA |
395 | /* physical interface link setup */ |
396 | mac->ops.setup_physical_interface = | |
397 | (hw->phy.media_type == e1000_media_type_copper) | |
398 | ? igb_setup_copper_link_82575 | |
399 | : igb_setup_serdes_link_82575; | |
400 | ||
401 | return 0; | |
402 | } | |
403 | ||
9d5c8243 AK |
404 | static s32 igb_get_invariants_82575(struct e1000_hw *hw) |
405 | { | |
9d5c8243 | 406 | struct e1000_mac_info *mac = &hw->mac; |
c1889bfe | 407 | struct e1000_dev_spec_82575 * dev_spec = &hw->dev_spec._82575; |
9d5c8243 | 408 | s32 ret_val; |
9d5c8243 AK |
409 | u32 ctrl_ext = 0; |
410 | ||
411 | switch (hw->device_id) { | |
412 | case E1000_DEV_ID_82575EB_COPPER: | |
413 | case E1000_DEV_ID_82575EB_FIBER_SERDES: | |
414 | case E1000_DEV_ID_82575GB_QUAD_COPPER: | |
415 | mac->type = e1000_82575; | |
416 | break; | |
2d064c06 | 417 | case E1000_DEV_ID_82576: |
9eb2341d | 418 | case E1000_DEV_ID_82576_NS: |
747d49ba | 419 | case E1000_DEV_ID_82576_NS_SERDES: |
2d064c06 AD |
420 | case E1000_DEV_ID_82576_FIBER: |
421 | case E1000_DEV_ID_82576_SERDES: | |
c8ea5ea9 | 422 | case E1000_DEV_ID_82576_QUAD_COPPER: |
b894fa26 | 423 | case E1000_DEV_ID_82576_QUAD_COPPER_ET2: |
4703bf73 | 424 | case E1000_DEV_ID_82576_SERDES_QUAD: |
2d064c06 AD |
425 | mac->type = e1000_82576; |
426 | break; | |
bb2ac47b AD |
427 | case E1000_DEV_ID_82580_COPPER: |
428 | case E1000_DEV_ID_82580_FIBER: | |
6493d24f | 429 | case E1000_DEV_ID_82580_QUAD_FIBER: |
bb2ac47b AD |
430 | case E1000_DEV_ID_82580_SERDES: |
431 | case E1000_DEV_ID_82580_SGMII: | |
432 | case E1000_DEV_ID_82580_COPPER_DUAL: | |
308fb39a JG |
433 | case E1000_DEV_ID_DH89XXCC_SGMII: |
434 | case E1000_DEV_ID_DH89XXCC_SERDES: | |
1b5dda33 GJ |
435 | case E1000_DEV_ID_DH89XXCC_BACKPLANE: |
436 | case E1000_DEV_ID_DH89XXCC_SFP: | |
bb2ac47b AD |
437 | mac->type = e1000_82580; |
438 | break; | |
d2ba2ed8 AD |
439 | case E1000_DEV_ID_I350_COPPER: |
440 | case E1000_DEV_ID_I350_FIBER: | |
441 | case E1000_DEV_ID_I350_SERDES: | |
442 | case E1000_DEV_ID_I350_SGMII: | |
443 | mac->type = e1000_i350; | |
444 | break; | |
f96a8a0b | 445 | case E1000_DEV_ID_I210_COPPER: |
f96a8a0b CW |
446 | case E1000_DEV_ID_I210_FIBER: |
447 | case E1000_DEV_ID_I210_SERDES: | |
448 | case E1000_DEV_ID_I210_SGMII: | |
449 | mac->type = e1000_i210; | |
450 | break; | |
451 | case E1000_DEV_ID_I211_COPPER: | |
452 | mac->type = e1000_i211; | |
453 | break; | |
ceb5f13b CW |
454 | case E1000_DEV_ID_I354_BACKPLANE_1GBPS: |
455 | case E1000_DEV_ID_I354_SGMII: | |
456 | case E1000_DEV_ID_I354_BACKPLANE_2_5GBPS: | |
457 | mac->type = e1000_i354; | |
458 | break; | |
9d5c8243 AK |
459 | default: |
460 | return -E1000_ERR_MAC_INIT; | |
461 | break; | |
462 | } | |
463 | ||
9d5c8243 | 464 | /* Set media type */ |
b980ac18 | 465 | /* The 82575 uses bits 22:23 for link mode. The mode can be changed |
9d5c8243 AK |
466 | * based on the EEPROM. We cannot rely upon device ID. There |
467 | * is no distinguishable difference between fiber and internal | |
468 | * SerDes mode on the 82575. There can be an external PHY attached | |
469 | * on the SGMII interface. For this, we'll set sgmii_active to true. | |
470 | */ | |
a6053d76 | 471 | hw->phy.media_type = e1000_media_type_copper; |
9d5c8243 AK |
472 | dev_spec->sgmii_active = false; |
473 | ||
474 | ctrl_ext = rd32(E1000_CTRL_EXT); | |
2fb02a26 AD |
475 | switch (ctrl_ext & E1000_CTRL_EXT_LINK_MODE_MASK) { |
476 | case E1000_CTRL_EXT_LINK_MODE_SGMII: | |
9d5c8243 | 477 | dev_spec->sgmii_active = true; |
2fb02a26 | 478 | break; |
bb2ac47b | 479 | case E1000_CTRL_EXT_LINK_MODE_1000BASE_KX: |
2fb02a26 AD |
480 | case E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES: |
481 | hw->phy.media_type = e1000_media_type_internal_serdes; | |
2fb02a26 AD |
482 | break; |
483 | default: | |
2fb02a26 | 484 | break; |
9d5c8243 | 485 | } |
2fb02a26 | 486 | |
a6053d76 AA |
487 | /* mac initialization and operations */ |
488 | ret_val = igb_init_mac_params_82575(hw); | |
489 | if (ret_val) | |
490 | goto out; | |
9d5c8243 AK |
491 | |
492 | /* NVM initialization */ | |
a6053d76 AA |
493 | ret_val = igb_init_nvm_params_82575(hw); |
494 | if (ret_val) | |
495 | goto out; | |
9d5c8243 | 496 | |
6b78bb1d CW |
497 | /* if part supports SR-IOV then initialize mailbox parameters */ |
498 | switch (mac->type) { | |
499 | case e1000_82576: | |
500 | case e1000_i350: | |
a0c98605 | 501 | igb_init_mbx_params_pf(hw); |
6b78bb1d CW |
502 | break; |
503 | default: | |
504 | break; | |
505 | } | |
a0c98605 | 506 | |
9d5c8243 | 507 | /* setup PHY parameters */ |
a6053d76 | 508 | ret_val = igb_init_phy_params_82575(hw); |
19e588e7 | 509 | |
a6053d76 AA |
510 | out: |
511 | return ret_val; | |
9d5c8243 AK |
512 | } |
513 | ||
514 | /** | |
733596be | 515 | * igb_acquire_phy_82575 - Acquire rights to access PHY |
9d5c8243 AK |
516 | * @hw: pointer to the HW structure |
517 | * | |
518 | * Acquire access rights to the correct PHY. This is a | |
519 | * function pointer entry point called by the api module. | |
520 | **/ | |
521 | static s32 igb_acquire_phy_82575(struct e1000_hw *hw) | |
522 | { | |
008c3422 | 523 | u16 mask = E1000_SWFW_PHY0_SM; |
9d5c8243 | 524 | |
008c3422 AD |
525 | if (hw->bus.func == E1000_FUNC_1) |
526 | mask = E1000_SWFW_PHY1_SM; | |
ede3ef0d NN |
527 | else if (hw->bus.func == E1000_FUNC_2) |
528 | mask = E1000_SWFW_PHY2_SM; | |
529 | else if (hw->bus.func == E1000_FUNC_3) | |
530 | mask = E1000_SWFW_PHY3_SM; | |
9d5c8243 | 531 | |
f96a8a0b | 532 | return hw->mac.ops.acquire_swfw_sync(hw, mask); |
9d5c8243 AK |
533 | } |
534 | ||
535 | /** | |
733596be | 536 | * igb_release_phy_82575 - Release rights to access PHY |
9d5c8243 AK |
537 | * @hw: pointer to the HW structure |
538 | * | |
539 | * A wrapper to release access rights to the correct PHY. This is a | |
540 | * function pointer entry point called by the api module. | |
541 | **/ | |
542 | static void igb_release_phy_82575(struct e1000_hw *hw) | |
543 | { | |
008c3422 AD |
544 | u16 mask = E1000_SWFW_PHY0_SM; |
545 | ||
546 | if (hw->bus.func == E1000_FUNC_1) | |
547 | mask = E1000_SWFW_PHY1_SM; | |
ede3ef0d NN |
548 | else if (hw->bus.func == E1000_FUNC_2) |
549 | mask = E1000_SWFW_PHY2_SM; | |
550 | else if (hw->bus.func == E1000_FUNC_3) | |
551 | mask = E1000_SWFW_PHY3_SM; | |
9d5c8243 | 552 | |
f96a8a0b | 553 | hw->mac.ops.release_swfw_sync(hw, mask); |
9d5c8243 AK |
554 | } |
555 | ||
556 | /** | |
733596be | 557 | * igb_read_phy_reg_sgmii_82575 - Read PHY register using sgmii |
9d5c8243 AK |
558 | * @hw: pointer to the HW structure |
559 | * @offset: register offset to be read | |
560 | * @data: pointer to the read data | |
561 | * | |
562 | * Reads the PHY register at offset using the serial gigabit media independent | |
563 | * interface and stores the retrieved information in data. | |
564 | **/ | |
565 | static s32 igb_read_phy_reg_sgmii_82575(struct e1000_hw *hw, u32 offset, | |
566 | u16 *data) | |
567 | { | |
bf6f7a92 | 568 | s32 ret_val = -E1000_ERR_PARAM; |
9d5c8243 AK |
569 | |
570 | if (offset > E1000_MAX_SGMII_PHY_REG_ADDR) { | |
652fff32 | 571 | hw_dbg("PHY Address %u is out of range\n", offset); |
bf6f7a92 | 572 | goto out; |
9d5c8243 AK |
573 | } |
574 | ||
bf6f7a92 AD |
575 | ret_val = hw->phy.ops.acquire(hw); |
576 | if (ret_val) | |
577 | goto out; | |
9d5c8243 | 578 | |
bf6f7a92 | 579 | ret_val = igb_read_phy_reg_i2c(hw, offset, data); |
9d5c8243 | 580 | |
bf6f7a92 AD |
581 | hw->phy.ops.release(hw); |
582 | ||
583 | out: | |
584 | return ret_val; | |
9d5c8243 AK |
585 | } |
586 | ||
587 | /** | |
733596be | 588 | * igb_write_phy_reg_sgmii_82575 - Write PHY register using sgmii |
9d5c8243 AK |
589 | * @hw: pointer to the HW structure |
590 | * @offset: register offset to write to | |
591 | * @data: data to write at register offset | |
592 | * | |
593 | * Writes the data to PHY register at the offset using the serial gigabit | |
594 | * media independent interface. | |
595 | **/ | |
596 | static s32 igb_write_phy_reg_sgmii_82575(struct e1000_hw *hw, u32 offset, | |
597 | u16 data) | |
598 | { | |
bf6f7a92 AD |
599 | s32 ret_val = -E1000_ERR_PARAM; |
600 | ||
9d5c8243 AK |
601 | |
602 | if (offset > E1000_MAX_SGMII_PHY_REG_ADDR) { | |
652fff32 | 603 | hw_dbg("PHY Address %d is out of range\n", offset); |
bf6f7a92 | 604 | goto out; |
9d5c8243 AK |
605 | } |
606 | ||
bf6f7a92 AD |
607 | ret_val = hw->phy.ops.acquire(hw); |
608 | if (ret_val) | |
609 | goto out; | |
9d5c8243 | 610 | |
bf6f7a92 | 611 | ret_val = igb_write_phy_reg_i2c(hw, offset, data); |
9d5c8243 | 612 | |
bf6f7a92 AD |
613 | hw->phy.ops.release(hw); |
614 | ||
615 | out: | |
616 | return ret_val; | |
9d5c8243 AK |
617 | } |
618 | ||
619 | /** | |
733596be | 620 | * igb_get_phy_id_82575 - Retrieve PHY addr and id |
9d5c8243 AK |
621 | * @hw: pointer to the HW structure |
622 | * | |
652fff32 | 623 | * Retrieves the PHY address and ID for both PHY's which do and do not use |
9d5c8243 AK |
624 | * sgmi interface. |
625 | **/ | |
626 | static s32 igb_get_phy_id_82575(struct e1000_hw *hw) | |
627 | { | |
628 | struct e1000_phy_info *phy = &hw->phy; | |
629 | s32 ret_val = 0; | |
630 | u16 phy_id; | |
2fb02a26 | 631 | u32 ctrl_ext; |
4085f746 | 632 | u32 mdic; |
9d5c8243 | 633 | |
b980ac18 | 634 | /* For SGMII PHYs, we try the list of possible addresses until |
9d5c8243 AK |
635 | * we find one that works. For non-SGMII PHYs |
636 | * (e.g. integrated copper PHYs), an address of 1 should | |
637 | * work. The result of this function should mean phy->phy_addr | |
638 | * and phy->id are set correctly. | |
639 | */ | |
640 | if (!(igb_sgmii_active_82575(hw))) { | |
641 | phy->addr = 1; | |
642 | ret_val = igb_get_phy_id(hw); | |
643 | goto out; | |
644 | } | |
645 | ||
4085f746 NN |
646 | if (igb_sgmii_uses_mdio_82575(hw)) { |
647 | switch (hw->mac.type) { | |
648 | case e1000_82575: | |
649 | case e1000_82576: | |
650 | mdic = rd32(E1000_MDIC); | |
651 | mdic &= E1000_MDIC_PHY_MASK; | |
652 | phy->addr = mdic >> E1000_MDIC_PHY_SHIFT; | |
653 | break; | |
654 | case e1000_82580: | |
655 | case e1000_i350: | |
ceb5f13b | 656 | case e1000_i354: |
f96a8a0b CW |
657 | case e1000_i210: |
658 | case e1000_i211: | |
4085f746 NN |
659 | mdic = rd32(E1000_MDICNFG); |
660 | mdic &= E1000_MDICNFG_PHY_MASK; | |
661 | phy->addr = mdic >> E1000_MDICNFG_PHY_SHIFT; | |
662 | break; | |
663 | default: | |
664 | ret_val = -E1000_ERR_PHY; | |
665 | goto out; | |
666 | break; | |
667 | } | |
668 | ret_val = igb_get_phy_id(hw); | |
669 | goto out; | |
670 | } | |
671 | ||
2fb02a26 AD |
672 | /* Power on sgmii phy if it is disabled */ |
673 | ctrl_ext = rd32(E1000_CTRL_EXT); | |
674 | wr32(E1000_CTRL_EXT, ctrl_ext & ~E1000_CTRL_EXT_SDP3_DATA); | |
675 | wrfl(); | |
676 | msleep(300); | |
677 | ||
b980ac18 | 678 | /* The address field in the I2CCMD register is 3 bits and 0 is invalid. |
9d5c8243 AK |
679 | * Therefore, we need to test 1-7 |
680 | */ | |
681 | for (phy->addr = 1; phy->addr < 8; phy->addr++) { | |
682 | ret_val = igb_read_phy_reg_sgmii_82575(hw, PHY_ID1, &phy_id); | |
683 | if (ret_val == 0) { | |
652fff32 AK |
684 | hw_dbg("Vendor ID 0x%08X read at address %u\n", |
685 | phy_id, phy->addr); | |
b980ac18 | 686 | /* At the time of this writing, The M88 part is |
9d5c8243 AK |
687 | * the only supported SGMII PHY product. |
688 | */ | |
689 | if (phy_id == M88_VENDOR) | |
690 | break; | |
691 | } else { | |
652fff32 | 692 | hw_dbg("PHY address %u was unreadable\n", phy->addr); |
9d5c8243 AK |
693 | } |
694 | } | |
695 | ||
696 | /* A valid PHY type couldn't be found. */ | |
697 | if (phy->addr == 8) { | |
698 | phy->addr = 0; | |
699 | ret_val = -E1000_ERR_PHY; | |
700 | goto out; | |
2fb02a26 AD |
701 | } else { |
702 | ret_val = igb_get_phy_id(hw); | |
9d5c8243 AK |
703 | } |
704 | ||
2fb02a26 AD |
705 | /* restore previous sfp cage power state */ |
706 | wr32(E1000_CTRL_EXT, ctrl_ext); | |
9d5c8243 AK |
707 | |
708 | out: | |
709 | return ret_val; | |
710 | } | |
711 | ||
712 | /** | |
733596be | 713 | * igb_phy_hw_reset_sgmii_82575 - Performs a PHY reset |
9d5c8243 AK |
714 | * @hw: pointer to the HW structure |
715 | * | |
716 | * Resets the PHY using the serial gigabit media independent interface. | |
717 | **/ | |
718 | static s32 igb_phy_hw_reset_sgmii_82575(struct e1000_hw *hw) | |
719 | { | |
720 | s32 ret_val; | |
721 | ||
b980ac18 | 722 | /* This isn't a true "hard" reset, but is the only reset |
9d5c8243 AK |
723 | * available to us at this time. |
724 | */ | |
725 | ||
652fff32 | 726 | hw_dbg("Soft resetting SGMII attached PHY...\n"); |
9d5c8243 | 727 | |
b980ac18 | 728 | /* SFP documentation requires the following to configure the SPF module |
9d5c8243 AK |
729 | * to work on SGMII. No further documentation is given. |
730 | */ | |
a8d2a0c2 | 731 | ret_val = hw->phy.ops.write_reg(hw, 0x1B, 0x8084); |
9d5c8243 AK |
732 | if (ret_val) |
733 | goto out; | |
734 | ||
735 | ret_val = igb_phy_sw_reset(hw); | |
736 | ||
737 | out: | |
738 | return ret_val; | |
739 | } | |
740 | ||
741 | /** | |
733596be | 742 | * igb_set_d0_lplu_state_82575 - Set Low Power Linkup D0 state |
9d5c8243 AK |
743 | * @hw: pointer to the HW structure |
744 | * @active: true to enable LPLU, false to disable | |
745 | * | |
746 | * Sets the LPLU D0 state according to the active flag. When | |
747 | * activating LPLU this function also disables smart speed | |
748 | * and vice versa. LPLU will not be activated unless the | |
749 | * device autonegotiation advertisement meets standards of | |
750 | * either 10 or 10/100 or 10/100/1000 at all duplexes. | |
751 | * This is a function pointer entry point only called by | |
752 | * PHY setup routines. | |
753 | **/ | |
754 | static s32 igb_set_d0_lplu_state_82575(struct e1000_hw *hw, bool active) | |
755 | { | |
756 | struct e1000_phy_info *phy = &hw->phy; | |
757 | s32 ret_val; | |
758 | u16 data; | |
759 | ||
a8d2a0c2 | 760 | ret_val = phy->ops.read_reg(hw, IGP02E1000_PHY_POWER_MGMT, &data); |
9d5c8243 AK |
761 | if (ret_val) |
762 | goto out; | |
763 | ||
764 | if (active) { | |
765 | data |= IGP02E1000_PM_D0_LPLU; | |
a8d2a0c2 | 766 | ret_val = phy->ops.write_reg(hw, IGP02E1000_PHY_POWER_MGMT, |
652fff32 | 767 | data); |
9d5c8243 AK |
768 | if (ret_val) |
769 | goto out; | |
770 | ||
771 | /* When LPLU is enabled, we should disable SmartSpeed */ | |
a8d2a0c2 | 772 | ret_val = phy->ops.read_reg(hw, IGP01E1000_PHY_PORT_CONFIG, |
652fff32 | 773 | &data); |
9d5c8243 | 774 | data &= ~IGP01E1000_PSCFR_SMART_SPEED; |
a8d2a0c2 | 775 | ret_val = phy->ops.write_reg(hw, IGP01E1000_PHY_PORT_CONFIG, |
652fff32 | 776 | data); |
9d5c8243 AK |
777 | if (ret_val) |
778 | goto out; | |
779 | } else { | |
780 | data &= ~IGP02E1000_PM_D0_LPLU; | |
a8d2a0c2 | 781 | ret_val = phy->ops.write_reg(hw, IGP02E1000_PHY_POWER_MGMT, |
652fff32 | 782 | data); |
b980ac18 | 783 | /* LPLU and SmartSpeed are mutually exclusive. LPLU is used |
9d5c8243 AK |
784 | * during Dx states where the power conservation is most |
785 | * important. During driver activity we should enable | |
786 | * SmartSpeed, so performance is maintained. | |
787 | */ | |
788 | if (phy->smart_speed == e1000_smart_speed_on) { | |
a8d2a0c2 | 789 | ret_val = phy->ops.read_reg(hw, |
652fff32 | 790 | IGP01E1000_PHY_PORT_CONFIG, &data); |
9d5c8243 AK |
791 | if (ret_val) |
792 | goto out; | |
793 | ||
794 | data |= IGP01E1000_PSCFR_SMART_SPEED; | |
a8d2a0c2 | 795 | ret_val = phy->ops.write_reg(hw, |
652fff32 | 796 | IGP01E1000_PHY_PORT_CONFIG, data); |
9d5c8243 AK |
797 | if (ret_val) |
798 | goto out; | |
799 | } else if (phy->smart_speed == e1000_smart_speed_off) { | |
a8d2a0c2 | 800 | ret_val = phy->ops.read_reg(hw, |
652fff32 | 801 | IGP01E1000_PHY_PORT_CONFIG, &data); |
9d5c8243 AK |
802 | if (ret_val) |
803 | goto out; | |
804 | ||
805 | data &= ~IGP01E1000_PSCFR_SMART_SPEED; | |
a8d2a0c2 | 806 | ret_val = phy->ops.write_reg(hw, |
652fff32 | 807 | IGP01E1000_PHY_PORT_CONFIG, data); |
9d5c8243 AK |
808 | if (ret_val) |
809 | goto out; | |
810 | } | |
811 | } | |
812 | ||
813 | out: | |
814 | return ret_val; | |
815 | } | |
816 | ||
da02cde1 CW |
817 | /** |
818 | * igb_set_d0_lplu_state_82580 - Set Low Power Linkup D0 state | |
819 | * @hw: pointer to the HW structure | |
820 | * @active: true to enable LPLU, false to disable | |
821 | * | |
822 | * Sets the LPLU D0 state according to the active flag. When | |
823 | * activating LPLU this function also disables smart speed | |
824 | * and vice versa. LPLU will not be activated unless the | |
825 | * device autonegotiation advertisement meets standards of | |
826 | * either 10 or 10/100 or 10/100/1000 at all duplexes. | |
827 | * This is a function pointer entry point only called by | |
828 | * PHY setup routines. | |
829 | **/ | |
830 | static s32 igb_set_d0_lplu_state_82580(struct e1000_hw *hw, bool active) | |
831 | { | |
832 | struct e1000_phy_info *phy = &hw->phy; | |
833 | s32 ret_val = 0; | |
834 | u16 data; | |
835 | ||
836 | data = rd32(E1000_82580_PHY_POWER_MGMT); | |
837 | ||
838 | if (active) { | |
839 | data |= E1000_82580_PM_D0_LPLU; | |
840 | ||
841 | /* When LPLU is enabled, we should disable SmartSpeed */ | |
842 | data &= ~E1000_82580_PM_SPD; | |
843 | } else { | |
844 | data &= ~E1000_82580_PM_D0_LPLU; | |
845 | ||
b980ac18 | 846 | /* LPLU and SmartSpeed are mutually exclusive. LPLU is used |
da02cde1 CW |
847 | * during Dx states where the power conservation is most |
848 | * important. During driver activity we should enable | |
849 | * SmartSpeed, so performance is maintained. | |
850 | */ | |
851 | if (phy->smart_speed == e1000_smart_speed_on) | |
852 | data |= E1000_82580_PM_SPD; | |
853 | else if (phy->smart_speed == e1000_smart_speed_off) | |
854 | data &= ~E1000_82580_PM_SPD; } | |
855 | ||
856 | wr32(E1000_82580_PHY_POWER_MGMT, data); | |
857 | return ret_val; | |
858 | } | |
859 | ||
860 | /** | |
861 | * igb_set_d3_lplu_state_82580 - Sets low power link up state for D3 | |
862 | * @hw: pointer to the HW structure | |
863 | * @active: boolean used to enable/disable lplu | |
864 | * | |
865 | * Success returns 0, Failure returns 1 | |
866 | * | |
867 | * The low power link up (lplu) state is set to the power management level D3 | |
868 | * and SmartSpeed is disabled when active is true, else clear lplu for D3 | |
869 | * and enable Smartspeed. LPLU and Smartspeed are mutually exclusive. LPLU | |
870 | * is used during Dx states where the power conservation is most important. | |
871 | * During driver activity, SmartSpeed should be enabled so performance is | |
872 | * maintained. | |
873 | **/ | |
c8268921 | 874 | static s32 igb_set_d3_lplu_state_82580(struct e1000_hw *hw, bool active) |
da02cde1 CW |
875 | { |
876 | struct e1000_phy_info *phy = &hw->phy; | |
877 | s32 ret_val = 0; | |
878 | u16 data; | |
879 | ||
880 | data = rd32(E1000_82580_PHY_POWER_MGMT); | |
881 | ||
882 | if (!active) { | |
883 | data &= ~E1000_82580_PM_D3_LPLU; | |
b980ac18 | 884 | /* LPLU and SmartSpeed are mutually exclusive. LPLU is used |
da02cde1 CW |
885 | * during Dx states where the power conservation is most |
886 | * important. During driver activity we should enable | |
887 | * SmartSpeed, so performance is maintained. | |
888 | */ | |
889 | if (phy->smart_speed == e1000_smart_speed_on) | |
890 | data |= E1000_82580_PM_SPD; | |
891 | else if (phy->smart_speed == e1000_smart_speed_off) | |
892 | data &= ~E1000_82580_PM_SPD; | |
893 | } else if ((phy->autoneg_advertised == E1000_ALL_SPEED_DUPLEX) || | |
894 | (phy->autoneg_advertised == E1000_ALL_NOT_GIG) || | |
895 | (phy->autoneg_advertised == E1000_ALL_10_SPEED)) { | |
896 | data |= E1000_82580_PM_D3_LPLU; | |
897 | /* When LPLU is enabled, we should disable SmartSpeed */ | |
898 | data &= ~E1000_82580_PM_SPD; | |
899 | } | |
900 | ||
901 | wr32(E1000_82580_PHY_POWER_MGMT, data); | |
902 | return ret_val; | |
903 | } | |
904 | ||
9d5c8243 | 905 | /** |
733596be | 906 | * igb_acquire_nvm_82575 - Request for access to EEPROM |
9d5c8243 AK |
907 | * @hw: pointer to the HW structure |
908 | * | |
652fff32 | 909 | * Acquire the necessary semaphores for exclusive access to the EEPROM. |
9d5c8243 AK |
910 | * Set the EEPROM access request bit and wait for EEPROM access grant bit. |
911 | * Return successful if access grant bit set, else clear the request for | |
912 | * EEPROM access and return -E1000_ERR_NVM (-1). | |
913 | **/ | |
914 | static s32 igb_acquire_nvm_82575(struct e1000_hw *hw) | |
915 | { | |
916 | s32 ret_val; | |
917 | ||
f96a8a0b | 918 | ret_val = hw->mac.ops.acquire_swfw_sync(hw, E1000_SWFW_EEP_SM); |
9d5c8243 AK |
919 | if (ret_val) |
920 | goto out; | |
921 | ||
922 | ret_val = igb_acquire_nvm(hw); | |
923 | ||
924 | if (ret_val) | |
f96a8a0b | 925 | hw->mac.ops.release_swfw_sync(hw, E1000_SWFW_EEP_SM); |
9d5c8243 AK |
926 | |
927 | out: | |
928 | return ret_val; | |
929 | } | |
930 | ||
931 | /** | |
733596be | 932 | * igb_release_nvm_82575 - Release exclusive access to EEPROM |
9d5c8243 AK |
933 | * @hw: pointer to the HW structure |
934 | * | |
935 | * Stop any current commands to the EEPROM and clear the EEPROM request bit, | |
936 | * then release the semaphores acquired. | |
937 | **/ | |
938 | static void igb_release_nvm_82575(struct e1000_hw *hw) | |
939 | { | |
940 | igb_release_nvm(hw); | |
f96a8a0b | 941 | hw->mac.ops.release_swfw_sync(hw, E1000_SWFW_EEP_SM); |
9d5c8243 AK |
942 | } |
943 | ||
944 | /** | |
733596be | 945 | * igb_acquire_swfw_sync_82575 - Acquire SW/FW semaphore |
9d5c8243 AK |
946 | * @hw: pointer to the HW structure |
947 | * @mask: specifies which semaphore to acquire | |
948 | * | |
949 | * Acquire the SW/FW semaphore to access the PHY or NVM. The mask | |
950 | * will also specify which port we're acquiring the lock for. | |
951 | **/ | |
952 | static s32 igb_acquire_swfw_sync_82575(struct e1000_hw *hw, u16 mask) | |
953 | { | |
954 | u32 swfw_sync; | |
955 | u32 swmask = mask; | |
956 | u32 fwmask = mask << 16; | |
957 | s32 ret_val = 0; | |
958 | s32 i = 0, timeout = 200; /* FIXME: find real value to use here */ | |
959 | ||
960 | while (i < timeout) { | |
961 | if (igb_get_hw_semaphore(hw)) { | |
962 | ret_val = -E1000_ERR_SWFW_SYNC; | |
963 | goto out; | |
964 | } | |
965 | ||
966 | swfw_sync = rd32(E1000_SW_FW_SYNC); | |
967 | if (!(swfw_sync & (fwmask | swmask))) | |
968 | break; | |
969 | ||
b980ac18 | 970 | /* Firmware currently using resource (fwmask) |
9d5c8243 AK |
971 | * or other software thread using resource (swmask) |
972 | */ | |
973 | igb_put_hw_semaphore(hw); | |
974 | mdelay(5); | |
975 | i++; | |
976 | } | |
977 | ||
978 | if (i == timeout) { | |
652fff32 | 979 | hw_dbg("Driver can't access resource, SW_FW_SYNC timeout.\n"); |
9d5c8243 AK |
980 | ret_val = -E1000_ERR_SWFW_SYNC; |
981 | goto out; | |
982 | } | |
983 | ||
984 | swfw_sync |= swmask; | |
985 | wr32(E1000_SW_FW_SYNC, swfw_sync); | |
986 | ||
987 | igb_put_hw_semaphore(hw); | |
988 | ||
989 | out: | |
990 | return ret_val; | |
991 | } | |
992 | ||
993 | /** | |
733596be | 994 | * igb_release_swfw_sync_82575 - Release SW/FW semaphore |
9d5c8243 AK |
995 | * @hw: pointer to the HW structure |
996 | * @mask: specifies which semaphore to acquire | |
997 | * | |
998 | * Release the SW/FW semaphore used to access the PHY or NVM. The mask | |
999 | * will also specify which port we're releasing the lock for. | |
1000 | **/ | |
1001 | static void igb_release_swfw_sync_82575(struct e1000_hw *hw, u16 mask) | |
1002 | { | |
1003 | u32 swfw_sync; | |
1004 | ||
1005 | while (igb_get_hw_semaphore(hw) != 0); | |
1006 | /* Empty */ | |
1007 | ||
1008 | swfw_sync = rd32(E1000_SW_FW_SYNC); | |
1009 | swfw_sync &= ~mask; | |
1010 | wr32(E1000_SW_FW_SYNC, swfw_sync); | |
1011 | ||
1012 | igb_put_hw_semaphore(hw); | |
1013 | } | |
1014 | ||
1015 | /** | |
733596be | 1016 | * igb_get_cfg_done_82575 - Read config done bit |
9d5c8243 AK |
1017 | * @hw: pointer to the HW structure |
1018 | * | |
1019 | * Read the management control register for the config done bit for | |
1020 | * completion status. NOTE: silicon which is EEPROM-less will fail trying | |
1021 | * to read the config done bit, so an error is *ONLY* logged and returns | |
1022 | * 0. If we were to return with error, EEPROM-less silicon | |
1023 | * would not be able to be reset or change link. | |
1024 | **/ | |
1025 | static s32 igb_get_cfg_done_82575(struct e1000_hw *hw) | |
1026 | { | |
1027 | s32 timeout = PHY_CFG_TIMEOUT; | |
1028 | s32 ret_val = 0; | |
1029 | u32 mask = E1000_NVM_CFG_DONE_PORT_0; | |
1030 | ||
1031 | if (hw->bus.func == 1) | |
1032 | mask = E1000_NVM_CFG_DONE_PORT_1; | |
bb2ac47b AD |
1033 | else if (hw->bus.func == E1000_FUNC_2) |
1034 | mask = E1000_NVM_CFG_DONE_PORT_2; | |
1035 | else if (hw->bus.func == E1000_FUNC_3) | |
1036 | mask = E1000_NVM_CFG_DONE_PORT_3; | |
9d5c8243 AK |
1037 | |
1038 | while (timeout) { | |
1039 | if (rd32(E1000_EEMNGCTL) & mask) | |
1040 | break; | |
1041 | msleep(1); | |
1042 | timeout--; | |
1043 | } | |
1044 | if (!timeout) | |
652fff32 | 1045 | hw_dbg("MNG configuration cycle has not completed.\n"); |
9d5c8243 AK |
1046 | |
1047 | /* If EEPROM is not marked present, init the PHY manually */ | |
1048 | if (((rd32(E1000_EECD) & E1000_EECD_PRES) == 0) && | |
1049 | (hw->phy.type == e1000_phy_igp_3)) | |
1050 | igb_phy_init_script_igp3(hw); | |
1051 | ||
1052 | return ret_val; | |
1053 | } | |
1054 | ||
1055 | /** | |
733596be | 1056 | * igb_check_for_link_82575 - Check for link |
9d5c8243 AK |
1057 | * @hw: pointer to the HW structure |
1058 | * | |
1059 | * If sgmii is enabled, then use the pcs register to determine link, otherwise | |
1060 | * use the generic interface for determining link. | |
1061 | **/ | |
1062 | static s32 igb_check_for_link_82575(struct e1000_hw *hw) | |
1063 | { | |
1064 | s32 ret_val; | |
1065 | u16 speed, duplex; | |
1066 | ||
70d92f86 | 1067 | if (hw->phy.media_type != e1000_media_type_copper) { |
9d5c8243 | 1068 | ret_val = igb_get_pcs_speed_and_duplex_82575(hw, &speed, |
2d064c06 | 1069 | &duplex); |
b980ac18 | 1070 | /* Use this flag to determine if link needs to be checked or |
5d0932a5 AD |
1071 | * not. If we have link clear the flag so that we do not |
1072 | * continue to check for link. | |
1073 | */ | |
1074 | hw->mac.get_link_status = !hw->mac.serdes_has_link; | |
daf56e40 CW |
1075 | |
1076 | /* Configure Flow Control now that Auto-Neg has completed. | |
1077 | * First, we need to restore the desired flow control | |
1078 | * settings because we may have had to re-autoneg with a | |
1079 | * different link partner. | |
1080 | */ | |
1081 | ret_val = igb_config_fc_after_link_up(hw); | |
1082 | if (ret_val) | |
1083 | hw_dbg("Error configuring flow control\n"); | |
5d0932a5 | 1084 | } else { |
9d5c8243 | 1085 | ret_val = igb_check_for_copper_link(hw); |
5d0932a5 | 1086 | } |
9d5c8243 AK |
1087 | |
1088 | return ret_val; | |
1089 | } | |
70d92f86 | 1090 | |
88a268c1 NN |
1091 | /** |
1092 | * igb_power_up_serdes_link_82575 - Power up the serdes link after shutdown | |
1093 | * @hw: pointer to the HW structure | |
1094 | **/ | |
1095 | void igb_power_up_serdes_link_82575(struct e1000_hw *hw) | |
1096 | { | |
1097 | u32 reg; | |
1098 | ||
1099 | ||
1100 | if ((hw->phy.media_type != e1000_media_type_internal_serdes) && | |
1101 | !igb_sgmii_active_82575(hw)) | |
1102 | return; | |
1103 | ||
1104 | /* Enable PCS to turn on link */ | |
1105 | reg = rd32(E1000_PCS_CFG0); | |
1106 | reg |= E1000_PCS_CFG_PCS_EN; | |
1107 | wr32(E1000_PCS_CFG0, reg); | |
1108 | ||
1109 | /* Power up the laser */ | |
1110 | reg = rd32(E1000_CTRL_EXT); | |
1111 | reg &= ~E1000_CTRL_EXT_SDP3_DATA; | |
1112 | wr32(E1000_CTRL_EXT, reg); | |
1113 | ||
1114 | /* flush the write to verify completion */ | |
1115 | wrfl(); | |
1116 | msleep(1); | |
1117 | } | |
1118 | ||
9d5c8243 | 1119 | /** |
733596be | 1120 | * igb_get_pcs_speed_and_duplex_82575 - Retrieve current speed/duplex |
9d5c8243 AK |
1121 | * @hw: pointer to the HW structure |
1122 | * @speed: stores the current speed | |
1123 | * @duplex: stores the current duplex | |
1124 | * | |
652fff32 | 1125 | * Using the physical coding sub-layer (PCS), retrieve the current speed and |
9d5c8243 AK |
1126 | * duplex, then store the values in the pointers provided. |
1127 | **/ | |
1128 | static s32 igb_get_pcs_speed_and_duplex_82575(struct e1000_hw *hw, u16 *speed, | |
1129 | u16 *duplex) | |
1130 | { | |
1131 | struct e1000_mac_info *mac = &hw->mac; | |
1132 | u32 pcs; | |
1133 | ||
1134 | /* Set up defaults for the return values of this function */ | |
1135 | mac->serdes_has_link = false; | |
1136 | *speed = 0; | |
1137 | *duplex = 0; | |
1138 | ||
b980ac18 | 1139 | /* Read the PCS Status register for link state. For non-copper mode, |
9d5c8243 AK |
1140 | * the status register is not accurate. The PCS status register is |
1141 | * used instead. | |
1142 | */ | |
1143 | pcs = rd32(E1000_PCS_LSTAT); | |
1144 | ||
b980ac18 | 1145 | /* The link up bit determines when link is up on autoneg. The sync ok |
9d5c8243 AK |
1146 | * gets set once both sides sync up and agree upon link. Stable link |
1147 | * can be determined by checking for both link up and link sync ok | |
1148 | */ | |
1149 | if ((pcs & E1000_PCS_LSTS_LINK_OK) && (pcs & E1000_PCS_LSTS_SYNK_OK)) { | |
1150 | mac->serdes_has_link = true; | |
1151 | ||
1152 | /* Detect and store PCS speed */ | |
1153 | if (pcs & E1000_PCS_LSTS_SPEED_1000) { | |
1154 | *speed = SPEED_1000; | |
1155 | } else if (pcs & E1000_PCS_LSTS_SPEED_100) { | |
1156 | *speed = SPEED_100; | |
1157 | } else { | |
1158 | *speed = SPEED_10; | |
1159 | } | |
1160 | ||
1161 | /* Detect and store PCS duplex */ | |
1162 | if (pcs & E1000_PCS_LSTS_DUPLEX_FULL) { | |
1163 | *duplex = FULL_DUPLEX; | |
1164 | } else { | |
1165 | *duplex = HALF_DUPLEX; | |
1166 | } | |
1167 | } | |
1168 | ||
1169 | return 0; | |
1170 | } | |
1171 | ||
2d064c06 | 1172 | /** |
2fb02a26 | 1173 | * igb_shutdown_serdes_link_82575 - Remove link during power down |
9d5c8243 | 1174 | * @hw: pointer to the HW structure |
9d5c8243 | 1175 | * |
2d064c06 AD |
1176 | * In the case of fiber serdes, shut down optics and PCS on driver unload |
1177 | * when management pass thru is not enabled. | |
9d5c8243 | 1178 | **/ |
2fb02a26 | 1179 | void igb_shutdown_serdes_link_82575(struct e1000_hw *hw) |
9d5c8243 | 1180 | { |
2d064c06 AD |
1181 | u32 reg; |
1182 | ||
53c992fa | 1183 | if (hw->phy.media_type != e1000_media_type_internal_serdes && |
2fb02a26 | 1184 | igb_sgmii_active_82575(hw)) |
2d064c06 AD |
1185 | return; |
1186 | ||
53c992fa | 1187 | if (!igb_enable_mng_pass_thru(hw)) { |
2d064c06 AD |
1188 | /* Disable PCS to turn off link */ |
1189 | reg = rd32(E1000_PCS_CFG0); | |
1190 | reg &= ~E1000_PCS_CFG_PCS_EN; | |
1191 | wr32(E1000_PCS_CFG0, reg); | |
1192 | ||
1193 | /* shutdown the laser */ | |
1194 | reg = rd32(E1000_CTRL_EXT); | |
2fb02a26 | 1195 | reg |= E1000_CTRL_EXT_SDP3_DATA; |
2d064c06 AD |
1196 | wr32(E1000_CTRL_EXT, reg); |
1197 | ||
1198 | /* flush the write to verify completion */ | |
1199 | wrfl(); | |
1200 | msleep(1); | |
1201 | } | |
9d5c8243 AK |
1202 | } |
1203 | ||
1204 | /** | |
733596be | 1205 | * igb_reset_hw_82575 - Reset hardware |
9d5c8243 AK |
1206 | * @hw: pointer to the HW structure |
1207 | * | |
1208 | * This resets the hardware into a known state. This is a | |
1209 | * function pointer entry point called by the api module. | |
1210 | **/ | |
1211 | static s32 igb_reset_hw_82575(struct e1000_hw *hw) | |
1212 | { | |
1213 | u32 ctrl, icr; | |
1214 | s32 ret_val; | |
1215 | ||
b980ac18 | 1216 | /* Prevent the PCI-E bus from sticking if there is no TLP connection |
9d5c8243 AK |
1217 | * on the last TLP read/write transaction when MAC is reset. |
1218 | */ | |
1219 | ret_val = igb_disable_pcie_master(hw); | |
1220 | if (ret_val) | |
652fff32 | 1221 | hw_dbg("PCI-E Master disable polling has failed.\n"); |
9d5c8243 | 1222 | |
009bc06e AD |
1223 | /* set the completion timeout for interface */ |
1224 | ret_val = igb_set_pcie_completion_timeout(hw); | |
1225 | if (ret_val) { | |
1226 | hw_dbg("PCI-E Set completion timeout has failed.\n"); | |
1227 | } | |
1228 | ||
652fff32 | 1229 | hw_dbg("Masking off all interrupts\n"); |
9d5c8243 AK |
1230 | wr32(E1000_IMC, 0xffffffff); |
1231 | ||
1232 | wr32(E1000_RCTL, 0); | |
1233 | wr32(E1000_TCTL, E1000_TCTL_PSP); | |
1234 | wrfl(); | |
1235 | ||
1236 | msleep(10); | |
1237 | ||
1238 | ctrl = rd32(E1000_CTRL); | |
1239 | ||
652fff32 | 1240 | hw_dbg("Issuing a global reset to MAC\n"); |
9d5c8243 AK |
1241 | wr32(E1000_CTRL, ctrl | E1000_CTRL_RST); |
1242 | ||
1243 | ret_val = igb_get_auto_rd_done(hw); | |
1244 | if (ret_val) { | |
b980ac18 | 1245 | /* When auto config read does not complete, do not |
9d5c8243 AK |
1246 | * return with an error. This can happen in situations |
1247 | * where there is no eeprom and prevents getting link. | |
1248 | */ | |
652fff32 | 1249 | hw_dbg("Auto Read Done did not complete\n"); |
9d5c8243 AK |
1250 | } |
1251 | ||
1252 | /* If EEPROM is not present, run manual init scripts */ | |
1253 | if ((rd32(E1000_EECD) & E1000_EECD_PRES) == 0) | |
1254 | igb_reset_init_script_82575(hw); | |
1255 | ||
1256 | /* Clear any pending interrupt events. */ | |
1257 | wr32(E1000_IMC, 0xffffffff); | |
1258 | icr = rd32(E1000_ICR); | |
1259 | ||
5ac16659 AD |
1260 | /* Install any alternate MAC address into RAR0 */ |
1261 | ret_val = igb_check_alt_mac_addr(hw); | |
9d5c8243 AK |
1262 | |
1263 | return ret_val; | |
1264 | } | |
1265 | ||
1266 | /** | |
733596be | 1267 | * igb_init_hw_82575 - Initialize hardware |
9d5c8243 AK |
1268 | * @hw: pointer to the HW structure |
1269 | * | |
1270 | * This inits the hardware readying it for operation. | |
1271 | **/ | |
1272 | static s32 igb_init_hw_82575(struct e1000_hw *hw) | |
1273 | { | |
1274 | struct e1000_mac_info *mac = &hw->mac; | |
1275 | s32 ret_val; | |
1276 | u16 i, rar_count = mac->rar_entry_count; | |
1277 | ||
1278 | /* Initialize identification LED */ | |
1279 | ret_val = igb_id_led_init(hw); | |
1280 | if (ret_val) { | |
652fff32 | 1281 | hw_dbg("Error initializing identification LED\n"); |
9d5c8243 AK |
1282 | /* This is not fatal and we should not stop init due to this */ |
1283 | } | |
1284 | ||
1285 | /* Disabling VLAN filtering */ | |
652fff32 | 1286 | hw_dbg("Initializing the IEEE VLAN\n"); |
ceb5f13b | 1287 | if ((hw->mac.type == e1000_i350) || (hw->mac.type == e1000_i354)) |
1128c756 CW |
1288 | igb_clear_vfta_i350(hw); |
1289 | else | |
1290 | igb_clear_vfta(hw); | |
9d5c8243 AK |
1291 | |
1292 | /* Setup the receive address */ | |
5ac16659 AD |
1293 | igb_init_rx_addrs(hw, rar_count); |
1294 | ||
9d5c8243 | 1295 | /* Zero out the Multicast HASH table */ |
652fff32 | 1296 | hw_dbg("Zeroing the MTA\n"); |
9d5c8243 AK |
1297 | for (i = 0; i < mac->mta_reg_count; i++) |
1298 | array_wr32(E1000_MTA, i, 0); | |
1299 | ||
68d480c4 AD |
1300 | /* Zero out the Unicast HASH table */ |
1301 | hw_dbg("Zeroing the UTA\n"); | |
1302 | for (i = 0; i < mac->uta_reg_count; i++) | |
1303 | array_wr32(E1000_UTA, i, 0); | |
1304 | ||
9d5c8243 AK |
1305 | /* Setup link and flow control */ |
1306 | ret_val = igb_setup_link(hw); | |
1307 | ||
b980ac18 | 1308 | /* Clear all of the statistics registers (clear on read). It is |
9d5c8243 AK |
1309 | * important that we do this after we have tried to establish link |
1310 | * because the symbol error count will increment wildly if there | |
1311 | * is no link. | |
1312 | */ | |
1313 | igb_clear_hw_cntrs_82575(hw); | |
9d5c8243 AK |
1314 | return ret_val; |
1315 | } | |
1316 | ||
1317 | /** | |
733596be | 1318 | * igb_setup_copper_link_82575 - Configure copper link settings |
9d5c8243 AK |
1319 | * @hw: pointer to the HW structure |
1320 | * | |
1321 | * Configures the link for auto-neg or forced speed and duplex. Then we check | |
1322 | * for link, once link is established calls to configure collision distance | |
1323 | * and flow control are called. | |
1324 | **/ | |
1325 | static s32 igb_setup_copper_link_82575(struct e1000_hw *hw) | |
1326 | { | |
12645a19 | 1327 | u32 ctrl; |
9d5c8243 | 1328 | s32 ret_val; |
867eb39e | 1329 | u32 phpm_reg; |
9d5c8243 AK |
1330 | |
1331 | ctrl = rd32(E1000_CTRL); | |
1332 | ctrl |= E1000_CTRL_SLU; | |
1333 | ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); | |
1334 | wr32(E1000_CTRL, ctrl); | |
1335 | ||
867eb39e CW |
1336 | /* Clear Go Link Disconnect bit */ |
1337 | if (hw->mac.type >= e1000_82580) { | |
1338 | phpm_reg = rd32(E1000_82580_PHY_POWER_MGMT); | |
1339 | phpm_reg &= ~E1000_82580_PM_GO_LINKD; | |
1340 | wr32(E1000_82580_PHY_POWER_MGMT, phpm_reg); | |
1341 | } | |
1342 | ||
2fb02a26 AD |
1343 | ret_val = igb_setup_serdes_link_82575(hw); |
1344 | if (ret_val) | |
1345 | goto out; | |
1346 | ||
1347 | if (igb_sgmii_active_82575(hw) && !hw->phy.reset_disable) { | |
bb2ac47b AD |
1348 | /* allow time for SFP cage time to power up phy */ |
1349 | msleep(300); | |
1350 | ||
2fb02a26 AD |
1351 | ret_val = hw->phy.ops.reset(hw); |
1352 | if (ret_val) { | |
1353 | hw_dbg("Error resetting the PHY.\n"); | |
1354 | goto out; | |
1355 | } | |
1356 | } | |
9d5c8243 | 1357 | switch (hw->phy.type) { |
f96a8a0b | 1358 | case e1000_phy_i210: |
9d5c8243 | 1359 | case e1000_phy_m88: |
ed65bdd8 CW |
1360 | switch (hw->phy.id) { |
1361 | case I347AT4_E_PHY_ID: | |
1362 | case M88E1112_E_PHY_ID: | |
ceb5f13b | 1363 | case M88E1545_E_PHY_ID: |
ed65bdd8 | 1364 | case I210_I_PHY_ID: |
308fb39a | 1365 | ret_val = igb_copper_link_setup_m88_gen2(hw); |
ed65bdd8 CW |
1366 | break; |
1367 | default: | |
308fb39a | 1368 | ret_val = igb_copper_link_setup_m88(hw); |
ed65bdd8 CW |
1369 | break; |
1370 | } | |
9d5c8243 AK |
1371 | break; |
1372 | case e1000_phy_igp_3: | |
1373 | ret_val = igb_copper_link_setup_igp(hw); | |
9d5c8243 | 1374 | break; |
bb2ac47b AD |
1375 | case e1000_phy_82580: |
1376 | ret_val = igb_copper_link_setup_82580(hw); | |
1377 | break; | |
9d5c8243 AK |
1378 | default: |
1379 | ret_val = -E1000_ERR_PHY; | |
1380 | break; | |
1381 | } | |
1382 | ||
1383 | if (ret_val) | |
1384 | goto out; | |
1385 | ||
81fadd81 | 1386 | ret_val = igb_setup_copper_link(hw); |
9d5c8243 AK |
1387 | out: |
1388 | return ret_val; | |
1389 | } | |
1390 | ||
1391 | /** | |
70d92f86 | 1392 | * igb_setup_serdes_link_82575 - Setup link for serdes |
9d5c8243 AK |
1393 | * @hw: pointer to the HW structure |
1394 | * | |
70d92f86 AD |
1395 | * Configure the physical coding sub-layer (PCS) link. The PCS link is |
1396 | * used on copper connections where the serialized gigabit media independent | |
1397 | * interface (sgmii), or serdes fiber is being used. Configures the link | |
1398 | * for auto-negotiation or forces speed/duplex. | |
9d5c8243 | 1399 | **/ |
2fb02a26 | 1400 | static s32 igb_setup_serdes_link_82575(struct e1000_hw *hw) |
9d5c8243 | 1401 | { |
daf56e40 | 1402 | u32 ctrl_ext, ctrl_reg, reg, anadv_reg; |
bb2ac47b | 1403 | bool pcs_autoneg; |
2c670b5b CW |
1404 | s32 ret_val = E1000_SUCCESS; |
1405 | u16 data; | |
2fb02a26 AD |
1406 | |
1407 | if ((hw->phy.media_type != e1000_media_type_internal_serdes) && | |
1408 | !igb_sgmii_active_82575(hw)) | |
2c670b5b CW |
1409 | return ret_val; |
1410 | ||
9d5c8243 | 1411 | |
b980ac18 | 1412 | /* On the 82575, SerDes loopback mode persists until it is |
9d5c8243 AK |
1413 | * explicitly turned off or a power cycle is performed. A read to |
1414 | * the register does not indicate its status. Therefore, we ensure | |
1415 | * loopback mode is disabled during initialization. | |
1416 | */ | |
1417 | wr32(E1000_SCTL, E1000_SCTL_DISABLE_SERDES_LOOPBACK); | |
1418 | ||
e00bf607 | 1419 | /* power on the sfp cage if present and turn on I2C */ |
bb2ac47b AD |
1420 | ctrl_ext = rd32(E1000_CTRL_EXT); |
1421 | ctrl_ext &= ~E1000_CTRL_EXT_SDP3_DATA; | |
e00bf607 | 1422 | ctrl_ext |= E1000_CTRL_I2C_ENA; |
bb2ac47b | 1423 | wr32(E1000_CTRL_EXT, ctrl_ext); |
2fb02a26 AD |
1424 | |
1425 | ctrl_reg = rd32(E1000_CTRL); | |
1426 | ctrl_reg |= E1000_CTRL_SLU; | |
1427 | ||
1428 | if (hw->mac.type == e1000_82575 || hw->mac.type == e1000_82576) { | |
1429 | /* set both sw defined pins */ | |
1430 | ctrl_reg |= E1000_CTRL_SWDPIN0 | E1000_CTRL_SWDPIN1; | |
1431 | ||
1432 | /* Set switch control to serdes energy detect */ | |
1433 | reg = rd32(E1000_CONNSW); | |
1434 | reg |= E1000_CONNSW_ENRGSRC; | |
1435 | wr32(E1000_CONNSW, reg); | |
1436 | } | |
1437 | ||
1438 | reg = rd32(E1000_PCS_LCTL); | |
1439 | ||
bb2ac47b AD |
1440 | /* default pcs_autoneg to the same setting as mac autoneg */ |
1441 | pcs_autoneg = hw->mac.autoneg; | |
2fb02a26 | 1442 | |
bb2ac47b AD |
1443 | switch (ctrl_ext & E1000_CTRL_EXT_LINK_MODE_MASK) { |
1444 | case E1000_CTRL_EXT_LINK_MODE_SGMII: | |
1445 | /* sgmii mode lets the phy handle forcing speed/duplex */ | |
1446 | pcs_autoneg = true; | |
1447 | /* autoneg time out should be disabled for SGMII mode */ | |
2fb02a26 | 1448 | reg &= ~(E1000_PCS_LCTL_AN_TIMEOUT); |
bb2ac47b AD |
1449 | break; |
1450 | case E1000_CTRL_EXT_LINK_MODE_1000BASE_KX: | |
1451 | /* disable PCS autoneg and support parallel detect only */ | |
1452 | pcs_autoneg = false; | |
1453 | default: | |
2c670b5b CW |
1454 | if (hw->mac.type == e1000_82575 || |
1455 | hw->mac.type == e1000_82576) { | |
1456 | ret_val = hw->nvm.ops.read(hw, NVM_COMPAT, 1, &data); | |
1457 | if (ret_val) { | |
1458 | printk(KERN_DEBUG "NVM Read Error\n\n"); | |
1459 | return ret_val; | |
1460 | } | |
1461 | ||
1462 | if (data & E1000_EEPROM_PCS_AUTONEG_DISABLE_BIT) | |
1463 | pcs_autoneg = false; | |
1464 | } | |
1465 | ||
b980ac18 | 1466 | /* non-SGMII modes only supports a speed of 1000/Full for the |
bb2ac47b AD |
1467 | * link so it is best to just force the MAC and let the pcs |
1468 | * link either autoneg or be forced to 1000/Full | |
1469 | */ | |
2fb02a26 AD |
1470 | ctrl_reg |= E1000_CTRL_SPD_1000 | E1000_CTRL_FRCSPD | |
1471 | E1000_CTRL_FD | E1000_CTRL_FRCDPX; | |
bb2ac47b AD |
1472 | |
1473 | /* set speed of 1000/Full if speed/duplex is forced */ | |
1474 | reg |= E1000_PCS_LCTL_FSV_1000 | E1000_PCS_LCTL_FDV_FULL; | |
1475 | break; | |
921aa749 AD |
1476 | } |
1477 | ||
2fb02a26 | 1478 | wr32(E1000_CTRL, ctrl_reg); |
9d5c8243 | 1479 | |
b980ac18 | 1480 | /* New SerDes mode allows for forcing speed or autonegotiating speed |
9d5c8243 AK |
1481 | * at 1gb. Autoneg should be default set by most drivers. This is the |
1482 | * mode that will be compatible with older link partners and switches. | |
1483 | * However, both are supported by the hardware and some drivers/tools. | |
1484 | */ | |
9d5c8243 AK |
1485 | reg &= ~(E1000_PCS_LCTL_AN_ENABLE | E1000_PCS_LCTL_FLV_LINK_UP | |
1486 | E1000_PCS_LCTL_FSD | E1000_PCS_LCTL_FORCE_LINK); | |
1487 | ||
bb2ac47b | 1488 | if (pcs_autoneg) { |
9d5c8243 | 1489 | /* Set PCS register for autoneg */ |
bb2ac47b | 1490 | reg |= E1000_PCS_LCTL_AN_ENABLE | /* Enable Autoneg */ |
70d92f86 | 1491 | E1000_PCS_LCTL_AN_RESTART; /* Restart autoneg */ |
daf56e40 CW |
1492 | |
1493 | /* Disable force flow control for autoneg */ | |
1494 | reg &= ~E1000_PCS_LCTL_FORCE_FCTRL; | |
1495 | ||
1496 | /* Configure flow control advertisement for autoneg */ | |
1497 | anadv_reg = rd32(E1000_PCS_ANADV); | |
1498 | anadv_reg &= ~(E1000_TXCW_ASM_DIR | E1000_TXCW_PAUSE); | |
1499 | switch (hw->fc.requested_mode) { | |
1500 | case e1000_fc_full: | |
1501 | case e1000_fc_rx_pause: | |
1502 | anadv_reg |= E1000_TXCW_ASM_DIR; | |
1503 | anadv_reg |= E1000_TXCW_PAUSE; | |
1504 | break; | |
1505 | case e1000_fc_tx_pause: | |
1506 | anadv_reg |= E1000_TXCW_ASM_DIR; | |
1507 | break; | |
1508 | default: | |
1509 | break; | |
1510 | } | |
1511 | wr32(E1000_PCS_ANADV, anadv_reg); | |
1512 | ||
bb2ac47b | 1513 | hw_dbg("Configuring Autoneg:PCS_LCTL=0x%08X\n", reg); |
9d5c8243 | 1514 | } else { |
bb2ac47b | 1515 | /* Set PCS register for forced link */ |
d68caec6 | 1516 | reg |= E1000_PCS_LCTL_FSD; /* Force Speed */ |
bb2ac47b | 1517 | |
daf56e40 CW |
1518 | /* Force flow control for forced link */ |
1519 | reg |= E1000_PCS_LCTL_FORCE_FCTRL; | |
1520 | ||
bb2ac47b | 1521 | hw_dbg("Configuring Forced Link:PCS_LCTL=0x%08X\n", reg); |
9d5c8243 | 1522 | } |
726c09e7 | 1523 | |
9d5c8243 AK |
1524 | wr32(E1000_PCS_LCTL, reg); |
1525 | ||
daf56e40 | 1526 | if (!pcs_autoneg && !igb_sgmii_active_82575(hw)) |
2fb02a26 | 1527 | igb_force_mac_fc(hw); |
9d5c8243 | 1528 | |
2c670b5b | 1529 | return ret_val; |
9d5c8243 AK |
1530 | } |
1531 | ||
1532 | /** | |
733596be | 1533 | * igb_sgmii_active_82575 - Return sgmii state |
9d5c8243 AK |
1534 | * @hw: pointer to the HW structure |
1535 | * | |
1536 | * 82575 silicon has a serialized gigabit media independent interface (sgmii) | |
1537 | * which can be enabled for use in the embedded applications. Simply | |
1538 | * return the current state of the sgmii interface. | |
1539 | **/ | |
1540 | static bool igb_sgmii_active_82575(struct e1000_hw *hw) | |
1541 | { | |
c1889bfe | 1542 | struct e1000_dev_spec_82575 *dev_spec = &hw->dev_spec._82575; |
c1889bfe | 1543 | return dev_spec->sgmii_active; |
9d5c8243 AK |
1544 | } |
1545 | ||
1546 | /** | |
733596be | 1547 | * igb_reset_init_script_82575 - Inits HW defaults after reset |
9d5c8243 AK |
1548 | * @hw: pointer to the HW structure |
1549 | * | |
1550 | * Inits recommended HW defaults after a reset when there is no EEPROM | |
1551 | * detected. This is only for the 82575. | |
1552 | **/ | |
1553 | static s32 igb_reset_init_script_82575(struct e1000_hw *hw) | |
1554 | { | |
1555 | if (hw->mac.type == e1000_82575) { | |
652fff32 | 1556 | hw_dbg("Running reset init script for 82575\n"); |
9d5c8243 AK |
1557 | /* SerDes configuration via SERDESCTRL */ |
1558 | igb_write_8bit_ctrl_reg(hw, E1000_SCTL, 0x00, 0x0C); | |
1559 | igb_write_8bit_ctrl_reg(hw, E1000_SCTL, 0x01, 0x78); | |
1560 | igb_write_8bit_ctrl_reg(hw, E1000_SCTL, 0x1B, 0x23); | |
1561 | igb_write_8bit_ctrl_reg(hw, E1000_SCTL, 0x23, 0x15); | |
1562 | ||
1563 | /* CCM configuration via CCMCTL register */ | |
1564 | igb_write_8bit_ctrl_reg(hw, E1000_CCMCTL, 0x14, 0x00); | |
1565 | igb_write_8bit_ctrl_reg(hw, E1000_CCMCTL, 0x10, 0x00); | |
1566 | ||
1567 | /* PCIe lanes configuration */ | |
1568 | igb_write_8bit_ctrl_reg(hw, E1000_GIOCTL, 0x00, 0xEC); | |
1569 | igb_write_8bit_ctrl_reg(hw, E1000_GIOCTL, 0x61, 0xDF); | |
1570 | igb_write_8bit_ctrl_reg(hw, E1000_GIOCTL, 0x34, 0x05); | |
1571 | igb_write_8bit_ctrl_reg(hw, E1000_GIOCTL, 0x2F, 0x81); | |
1572 | ||
1573 | /* PCIe PLL Configuration */ | |
1574 | igb_write_8bit_ctrl_reg(hw, E1000_SCCTL, 0x02, 0x47); | |
1575 | igb_write_8bit_ctrl_reg(hw, E1000_SCCTL, 0x14, 0x00); | |
1576 | igb_write_8bit_ctrl_reg(hw, E1000_SCCTL, 0x10, 0x00); | |
1577 | } | |
1578 | ||
1579 | return 0; | |
1580 | } | |
1581 | ||
1582 | /** | |
733596be | 1583 | * igb_read_mac_addr_82575 - Read device MAC address |
9d5c8243 AK |
1584 | * @hw: pointer to the HW structure |
1585 | **/ | |
1586 | static s32 igb_read_mac_addr_82575(struct e1000_hw *hw) | |
1587 | { | |
1588 | s32 ret_val = 0; | |
1589 | ||
b980ac18 | 1590 | /* If there's an alternate MAC address place it in RAR0 |
22896639 AD |
1591 | * so that it will override the Si installed default perm |
1592 | * address. | |
1593 | */ | |
1594 | ret_val = igb_check_alt_mac_addr(hw); | |
1595 | if (ret_val) | |
1596 | goto out; | |
1597 | ||
1598 | ret_val = igb_read_mac_addr(hw); | |
9d5c8243 | 1599 | |
22896639 | 1600 | out: |
9d5c8243 AK |
1601 | return ret_val; |
1602 | } | |
1603 | ||
88a268c1 NN |
1604 | /** |
1605 | * igb_power_down_phy_copper_82575 - Remove link during PHY power down | |
1606 | * @hw: pointer to the HW structure | |
1607 | * | |
1608 | * In the case of a PHY power down to save power, or to turn off link during a | |
1609 | * driver unload, or wake on lan is not enabled, remove the link. | |
1610 | **/ | |
1611 | void igb_power_down_phy_copper_82575(struct e1000_hw *hw) | |
1612 | { | |
1613 | /* If the management interface is not enabled, then power down */ | |
1614 | if (!(igb_enable_mng_pass_thru(hw) || igb_check_reset_block(hw))) | |
1615 | igb_power_down_phy_copper(hw); | |
88a268c1 NN |
1616 | } |
1617 | ||
9d5c8243 | 1618 | /** |
733596be | 1619 | * igb_clear_hw_cntrs_82575 - Clear device specific hardware counters |
9d5c8243 AK |
1620 | * @hw: pointer to the HW structure |
1621 | * | |
1622 | * Clears the hardware counters by reading the counter registers. | |
1623 | **/ | |
1624 | static void igb_clear_hw_cntrs_82575(struct e1000_hw *hw) | |
1625 | { | |
9d5c8243 AK |
1626 | igb_clear_hw_cntrs_base(hw); |
1627 | ||
cc9073bb AD |
1628 | rd32(E1000_PRC64); |
1629 | rd32(E1000_PRC127); | |
1630 | rd32(E1000_PRC255); | |
1631 | rd32(E1000_PRC511); | |
1632 | rd32(E1000_PRC1023); | |
1633 | rd32(E1000_PRC1522); | |
1634 | rd32(E1000_PTC64); | |
1635 | rd32(E1000_PTC127); | |
1636 | rd32(E1000_PTC255); | |
1637 | rd32(E1000_PTC511); | |
1638 | rd32(E1000_PTC1023); | |
1639 | rd32(E1000_PTC1522); | |
1640 | ||
1641 | rd32(E1000_ALGNERRC); | |
1642 | rd32(E1000_RXERRC); | |
1643 | rd32(E1000_TNCRS); | |
1644 | rd32(E1000_CEXTERR); | |
1645 | rd32(E1000_TSCTC); | |
1646 | rd32(E1000_TSCTFC); | |
1647 | ||
1648 | rd32(E1000_MGTPRC); | |
1649 | rd32(E1000_MGTPDC); | |
1650 | rd32(E1000_MGTPTC); | |
1651 | ||
1652 | rd32(E1000_IAC); | |
1653 | rd32(E1000_ICRXOC); | |
1654 | ||
1655 | rd32(E1000_ICRXPTC); | |
1656 | rd32(E1000_ICRXATC); | |
1657 | rd32(E1000_ICTXPTC); | |
1658 | rd32(E1000_ICTXATC); | |
1659 | rd32(E1000_ICTXQEC); | |
1660 | rd32(E1000_ICTXQMTC); | |
1661 | rd32(E1000_ICRXDMTC); | |
1662 | ||
1663 | rd32(E1000_CBTMPC); | |
1664 | rd32(E1000_HTDPMC); | |
1665 | rd32(E1000_CBRMPC); | |
1666 | rd32(E1000_RPTHC); | |
1667 | rd32(E1000_HGPTC); | |
1668 | rd32(E1000_HTCBDPC); | |
1669 | rd32(E1000_HGORCL); | |
1670 | rd32(E1000_HGORCH); | |
1671 | rd32(E1000_HGOTCL); | |
1672 | rd32(E1000_HGOTCH); | |
1673 | rd32(E1000_LENERRS); | |
9d5c8243 AK |
1674 | |
1675 | /* This register should not be read in copper configurations */ | |
2fb02a26 AD |
1676 | if (hw->phy.media_type == e1000_media_type_internal_serdes || |
1677 | igb_sgmii_active_82575(hw)) | |
cc9073bb | 1678 | rd32(E1000_SCVPC); |
9d5c8243 AK |
1679 | } |
1680 | ||
662d7205 AD |
1681 | /** |
1682 | * igb_rx_fifo_flush_82575 - Clean rx fifo after RX enable | |
1683 | * @hw: pointer to the HW structure | |
1684 | * | |
1685 | * After rx enable if managability is enabled then there is likely some | |
1686 | * bad data at the start of the fifo and possibly in the DMA fifo. This | |
1687 | * function clears the fifos and flushes any packets that came in as rx was | |
1688 | * being enabled. | |
1689 | **/ | |
1690 | void igb_rx_fifo_flush_82575(struct e1000_hw *hw) | |
1691 | { | |
1692 | u32 rctl, rlpml, rxdctl[4], rfctl, temp_rctl, rx_enabled; | |
1693 | int i, ms_wait; | |
1694 | ||
1695 | if (hw->mac.type != e1000_82575 || | |
1696 | !(rd32(E1000_MANC) & E1000_MANC_RCV_TCO_EN)) | |
1697 | return; | |
1698 | ||
1699 | /* Disable all RX queues */ | |
1700 | for (i = 0; i < 4; i++) { | |
1701 | rxdctl[i] = rd32(E1000_RXDCTL(i)); | |
1702 | wr32(E1000_RXDCTL(i), | |
1703 | rxdctl[i] & ~E1000_RXDCTL_QUEUE_ENABLE); | |
1704 | } | |
1705 | /* Poll all queues to verify they have shut down */ | |
1706 | for (ms_wait = 0; ms_wait < 10; ms_wait++) { | |
1707 | msleep(1); | |
1708 | rx_enabled = 0; | |
1709 | for (i = 0; i < 4; i++) | |
1710 | rx_enabled |= rd32(E1000_RXDCTL(i)); | |
1711 | if (!(rx_enabled & E1000_RXDCTL_QUEUE_ENABLE)) | |
1712 | break; | |
1713 | } | |
1714 | ||
1715 | if (ms_wait == 10) | |
1716 | hw_dbg("Queue disable timed out after 10ms\n"); | |
1717 | ||
1718 | /* Clear RLPML, RCTL.SBP, RFCTL.LEF, and set RCTL.LPE so that all | |
1719 | * incoming packets are rejected. Set enable and wait 2ms so that | |
1720 | * any packet that was coming in as RCTL.EN was set is flushed | |
1721 | */ | |
1722 | rfctl = rd32(E1000_RFCTL); | |
1723 | wr32(E1000_RFCTL, rfctl & ~E1000_RFCTL_LEF); | |
1724 | ||
1725 | rlpml = rd32(E1000_RLPML); | |
1726 | wr32(E1000_RLPML, 0); | |
1727 | ||
1728 | rctl = rd32(E1000_RCTL); | |
1729 | temp_rctl = rctl & ~(E1000_RCTL_EN | E1000_RCTL_SBP); | |
1730 | temp_rctl |= E1000_RCTL_LPE; | |
1731 | ||
1732 | wr32(E1000_RCTL, temp_rctl); | |
1733 | wr32(E1000_RCTL, temp_rctl | E1000_RCTL_EN); | |
1734 | wrfl(); | |
1735 | msleep(2); | |
1736 | ||
1737 | /* Enable RX queues that were previously enabled and restore our | |
1738 | * previous state | |
1739 | */ | |
1740 | for (i = 0; i < 4; i++) | |
1741 | wr32(E1000_RXDCTL(i), rxdctl[i]); | |
1742 | wr32(E1000_RCTL, rctl); | |
1743 | wrfl(); | |
1744 | ||
1745 | wr32(E1000_RLPML, rlpml); | |
1746 | wr32(E1000_RFCTL, rfctl); | |
1747 | ||
1748 | /* Flush receive errors generated by workaround */ | |
1749 | rd32(E1000_ROC); | |
1750 | rd32(E1000_RNBC); | |
1751 | rd32(E1000_MPC); | |
1752 | } | |
1753 | ||
009bc06e AD |
1754 | /** |
1755 | * igb_set_pcie_completion_timeout - set pci-e completion timeout | |
1756 | * @hw: pointer to the HW structure | |
1757 | * | |
1758 | * The defaults for 82575 and 82576 should be in the range of 50us to 50ms, | |
1759 | * however the hardware default for these parts is 500us to 1ms which is less | |
1760 | * than the 10ms recommended by the pci-e spec. To address this we need to | |
1761 | * increase the value to either 10ms to 200ms for capability version 1 config, | |
1762 | * or 16ms to 55ms for version 2. | |
1763 | **/ | |
1764 | static s32 igb_set_pcie_completion_timeout(struct e1000_hw *hw) | |
1765 | { | |
1766 | u32 gcr = rd32(E1000_GCR); | |
1767 | s32 ret_val = 0; | |
1768 | u16 pcie_devctl2; | |
1769 | ||
1770 | /* only take action if timeout value is defaulted to 0 */ | |
1771 | if (gcr & E1000_GCR_CMPL_TMOUT_MASK) | |
1772 | goto out; | |
1773 | ||
b980ac18 | 1774 | /* if capabilities version is type 1 we can write the |
009bc06e AD |
1775 | * timeout of 10ms to 200ms through the GCR register |
1776 | */ | |
1777 | if (!(gcr & E1000_GCR_CAP_VER2)) { | |
1778 | gcr |= E1000_GCR_CMPL_TMOUT_10ms; | |
1779 | goto out; | |
1780 | } | |
1781 | ||
b980ac18 | 1782 | /* for version 2 capabilities we need to write the config space |
009bc06e AD |
1783 | * directly in order to set the completion timeout value for |
1784 | * 16ms to 55ms | |
1785 | */ | |
1786 | ret_val = igb_read_pcie_cap_reg(hw, PCIE_DEVICE_CONTROL2, | |
1787 | &pcie_devctl2); | |
1788 | if (ret_val) | |
1789 | goto out; | |
1790 | ||
1791 | pcie_devctl2 |= PCIE_DEVICE_CONTROL2_16ms; | |
1792 | ||
1793 | ret_val = igb_write_pcie_cap_reg(hw, PCIE_DEVICE_CONTROL2, | |
1794 | &pcie_devctl2); | |
1795 | out: | |
1796 | /* disable completion timeout resend */ | |
1797 | gcr &= ~E1000_GCR_CMPL_TMOUT_RESEND; | |
1798 | ||
1799 | wr32(E1000_GCR, gcr); | |
1800 | return ret_val; | |
1801 | } | |
1802 | ||
13800469 GR |
1803 | /** |
1804 | * igb_vmdq_set_anti_spoofing_pf - enable or disable anti-spoofing | |
1805 | * @hw: pointer to the hardware struct | |
1806 | * @enable: state to enter, either enabled or disabled | |
1807 | * @pf: Physical Function pool - do not set anti-spoofing for the PF | |
1808 | * | |
1809 | * enables/disables L2 switch anti-spoofing functionality. | |
1810 | **/ | |
1811 | void igb_vmdq_set_anti_spoofing_pf(struct e1000_hw *hw, bool enable, int pf) | |
1812 | { | |
22c12752 | 1813 | u32 reg_val, reg_offset; |
13800469 GR |
1814 | |
1815 | switch (hw->mac.type) { | |
1816 | case e1000_82576: | |
22c12752 LL |
1817 | reg_offset = E1000_DTXSWC; |
1818 | break; | |
13800469 | 1819 | case e1000_i350: |
ceb5f13b | 1820 | case e1000_i354: |
22c12752 | 1821 | reg_offset = E1000_TXSWC; |
13800469 GR |
1822 | break; |
1823 | default: | |
22c12752 LL |
1824 | return; |
1825 | } | |
1826 | ||
1827 | reg_val = rd32(reg_offset); | |
1828 | if (enable) { | |
1829 | reg_val |= (E1000_DTXSWC_MAC_SPOOF_MASK | | |
1830 | E1000_DTXSWC_VLAN_SPOOF_MASK); | |
1831 | /* The PF can spoof - it has to in order to | |
1832 | * support emulation mode NICs | |
1833 | */ | |
1834 | reg_val ^= (1 << pf | 1 << (pf + MAX_NUM_VFS)); | |
1835 | } else { | |
1836 | reg_val &= ~(E1000_DTXSWC_MAC_SPOOF_MASK | | |
1837 | E1000_DTXSWC_VLAN_SPOOF_MASK); | |
13800469 | 1838 | } |
22c12752 | 1839 | wr32(reg_offset, reg_val); |
13800469 GR |
1840 | } |
1841 | ||
4ae196df AD |
1842 | /** |
1843 | * igb_vmdq_set_loopback_pf - enable or disable vmdq loopback | |
1844 | * @hw: pointer to the hardware struct | |
1845 | * @enable: state to enter, either enabled or disabled | |
1846 | * | |
1847 | * enables/disables L2 switch loopback functionality. | |
1848 | **/ | |
1849 | void igb_vmdq_set_loopback_pf(struct e1000_hw *hw, bool enable) | |
1850 | { | |
ca2e3e7e AA |
1851 | u32 dtxswc; |
1852 | ||
1853 | switch (hw->mac.type) { | |
1854 | case e1000_82576: | |
1855 | dtxswc = rd32(E1000_DTXSWC); | |
1856 | if (enable) | |
1857 | dtxswc |= E1000_DTXSWC_VMDQ_LOOPBACK_EN; | |
1858 | else | |
1859 | dtxswc &= ~E1000_DTXSWC_VMDQ_LOOPBACK_EN; | |
1860 | wr32(E1000_DTXSWC, dtxswc); | |
1861 | break; | |
ceb5f13b | 1862 | case e1000_i354: |
ca2e3e7e AA |
1863 | case e1000_i350: |
1864 | dtxswc = rd32(E1000_TXSWC); | |
1865 | if (enable) | |
1866 | dtxswc |= E1000_DTXSWC_VMDQ_LOOPBACK_EN; | |
1867 | else | |
1868 | dtxswc &= ~E1000_DTXSWC_VMDQ_LOOPBACK_EN; | |
1869 | wr32(E1000_TXSWC, dtxswc); | |
1870 | break; | |
1871 | default: | |
1872 | /* Currently no other hardware supports loopback */ | |
1873 | break; | |
1874 | } | |
4ae196df | 1875 | |
4ae196df AD |
1876 | } |
1877 | ||
1878 | /** | |
1879 | * igb_vmdq_set_replication_pf - enable or disable vmdq replication | |
1880 | * @hw: pointer to the hardware struct | |
1881 | * @enable: state to enter, either enabled or disabled | |
1882 | * | |
1883 | * enables/disables replication of packets across multiple pools. | |
1884 | **/ | |
1885 | void igb_vmdq_set_replication_pf(struct e1000_hw *hw, bool enable) | |
1886 | { | |
1887 | u32 vt_ctl = rd32(E1000_VT_CTL); | |
1888 | ||
1889 | if (enable) | |
1890 | vt_ctl |= E1000_VT_CTL_VM_REPL_EN; | |
1891 | else | |
1892 | vt_ctl &= ~E1000_VT_CTL_VM_REPL_EN; | |
1893 | ||
1894 | wr32(E1000_VT_CTL, vt_ctl); | |
1895 | } | |
1896 | ||
bb2ac47b AD |
1897 | /** |
1898 | * igb_read_phy_reg_82580 - Read 82580 MDI control register | |
1899 | * @hw: pointer to the HW structure | |
1900 | * @offset: register offset to be read | |
1901 | * @data: pointer to the read data | |
1902 | * | |
1903 | * Reads the MDI control register in the PHY at offset and stores the | |
1904 | * information read to data. | |
1905 | **/ | |
1906 | static s32 igb_read_phy_reg_82580(struct e1000_hw *hw, u32 offset, u16 *data) | |
1907 | { | |
bb2ac47b AD |
1908 | s32 ret_val; |
1909 | ||
bb2ac47b AD |
1910 | ret_val = hw->phy.ops.acquire(hw); |
1911 | if (ret_val) | |
1912 | goto out; | |
1913 | ||
bb2ac47b AD |
1914 | ret_val = igb_read_phy_reg_mdic(hw, offset, data); |
1915 | ||
1916 | hw->phy.ops.release(hw); | |
1917 | ||
1918 | out: | |
1919 | return ret_val; | |
1920 | } | |
1921 | ||
1922 | /** | |
1923 | * igb_write_phy_reg_82580 - Write 82580 MDI control register | |
1924 | * @hw: pointer to the HW structure | |
1925 | * @offset: register offset to write to | |
1926 | * @data: data to write to register at offset | |
1927 | * | |
1928 | * Writes data to MDI control register in the PHY at offset. | |
1929 | **/ | |
1930 | static s32 igb_write_phy_reg_82580(struct e1000_hw *hw, u32 offset, u16 data) | |
1931 | { | |
bb2ac47b AD |
1932 | s32 ret_val; |
1933 | ||
1934 | ||
1935 | ret_val = hw->phy.ops.acquire(hw); | |
1936 | if (ret_val) | |
1937 | goto out; | |
1938 | ||
bb2ac47b AD |
1939 | ret_val = igb_write_phy_reg_mdic(hw, offset, data); |
1940 | ||
1941 | hw->phy.ops.release(hw); | |
1942 | ||
1943 | out: | |
1944 | return ret_val; | |
1945 | } | |
1946 | ||
08451e25 NN |
1947 | /** |
1948 | * igb_reset_mdicnfg_82580 - Reset MDICNFG destination and com_mdio bits | |
1949 | * @hw: pointer to the HW structure | |
1950 | * | |
1951 | * This resets the the MDICNFG.Destination and MDICNFG.Com_MDIO bits based on | |
1952 | * the values found in the EEPROM. This addresses an issue in which these | |
1953 | * bits are not restored from EEPROM after reset. | |
1954 | **/ | |
1955 | static s32 igb_reset_mdicnfg_82580(struct e1000_hw *hw) | |
1956 | { | |
1957 | s32 ret_val = 0; | |
1958 | u32 mdicnfg; | |
1b5dda33 | 1959 | u16 nvm_data = 0; |
08451e25 NN |
1960 | |
1961 | if (hw->mac.type != e1000_82580) | |
1962 | goto out; | |
1963 | if (!igb_sgmii_active_82575(hw)) | |
1964 | goto out; | |
1965 | ||
1966 | ret_val = hw->nvm.ops.read(hw, NVM_INIT_CONTROL3_PORT_A + | |
1967 | NVM_82580_LAN_FUNC_OFFSET(hw->bus.func), 1, | |
1968 | &nvm_data); | |
1969 | if (ret_val) { | |
1970 | hw_dbg("NVM Read Error\n"); | |
1971 | goto out; | |
1972 | } | |
1973 | ||
1974 | mdicnfg = rd32(E1000_MDICNFG); | |
1975 | if (nvm_data & NVM_WORD24_EXT_MDIO) | |
1976 | mdicnfg |= E1000_MDICNFG_EXT_MDIO; | |
1977 | if (nvm_data & NVM_WORD24_COM_MDIO) | |
1978 | mdicnfg |= E1000_MDICNFG_COM_MDIO; | |
1979 | wr32(E1000_MDICNFG, mdicnfg); | |
1980 | out: | |
1981 | return ret_val; | |
1982 | } | |
1983 | ||
bb2ac47b AD |
1984 | /** |
1985 | * igb_reset_hw_82580 - Reset hardware | |
1986 | * @hw: pointer to the HW structure | |
1987 | * | |
1988 | * This resets function or entire device (all ports, etc.) | |
1989 | * to a known state. | |
1990 | **/ | |
1991 | static s32 igb_reset_hw_82580(struct e1000_hw *hw) | |
1992 | { | |
1993 | s32 ret_val = 0; | |
1994 | /* BH SW mailbox bit in SW_FW_SYNC */ | |
1995 | u16 swmbsw_mask = E1000_SW_SYNCH_MB; | |
1996 | u32 ctrl, icr; | |
1997 | bool global_device_reset = hw->dev_spec._82575.global_device_reset; | |
1998 | ||
1999 | ||
2000 | hw->dev_spec._82575.global_device_reset = false; | |
2001 | ||
a0483e2e CW |
2002 | /* due to hw errata, global device reset doesn't always |
2003 | * work on 82580 | |
2004 | */ | |
2005 | if (hw->mac.type == e1000_82580) | |
2006 | global_device_reset = false; | |
2007 | ||
bb2ac47b AD |
2008 | /* Get current control state. */ |
2009 | ctrl = rd32(E1000_CTRL); | |
2010 | ||
b980ac18 | 2011 | /* Prevent the PCI-E bus from sticking if there is no TLP connection |
bb2ac47b AD |
2012 | * on the last TLP read/write transaction when MAC is reset. |
2013 | */ | |
2014 | ret_val = igb_disable_pcie_master(hw); | |
2015 | if (ret_val) | |
2016 | hw_dbg("PCI-E Master disable polling has failed.\n"); | |
2017 | ||
2018 | hw_dbg("Masking off all interrupts\n"); | |
2019 | wr32(E1000_IMC, 0xffffffff); | |
2020 | wr32(E1000_RCTL, 0); | |
2021 | wr32(E1000_TCTL, E1000_TCTL_PSP); | |
2022 | wrfl(); | |
2023 | ||
2024 | msleep(10); | |
2025 | ||
2026 | /* Determine whether or not a global dev reset is requested */ | |
2027 | if (global_device_reset && | |
f96a8a0b | 2028 | hw->mac.ops.acquire_swfw_sync(hw, swmbsw_mask)) |
bb2ac47b AD |
2029 | global_device_reset = false; |
2030 | ||
2031 | if (global_device_reset && | |
2032 | !(rd32(E1000_STATUS) & E1000_STAT_DEV_RST_SET)) | |
2033 | ctrl |= E1000_CTRL_DEV_RST; | |
2034 | else | |
2035 | ctrl |= E1000_CTRL_RST; | |
2036 | ||
2037 | wr32(E1000_CTRL, ctrl); | |
064b4330 | 2038 | wrfl(); |
bb2ac47b AD |
2039 | |
2040 | /* Add delay to insure DEV_RST has time to complete */ | |
2041 | if (global_device_reset) | |
2042 | msleep(5); | |
2043 | ||
2044 | ret_val = igb_get_auto_rd_done(hw); | |
2045 | if (ret_val) { | |
b980ac18 | 2046 | /* When auto config read does not complete, do not |
bb2ac47b AD |
2047 | * return with an error. This can happen in situations |
2048 | * where there is no eeprom and prevents getting link. | |
2049 | */ | |
2050 | hw_dbg("Auto Read Done did not complete\n"); | |
2051 | } | |
2052 | ||
bb2ac47b AD |
2053 | /* clear global device reset status bit */ |
2054 | wr32(E1000_STATUS, E1000_STAT_DEV_RST_SET); | |
2055 | ||
2056 | /* Clear any pending interrupt events. */ | |
2057 | wr32(E1000_IMC, 0xffffffff); | |
2058 | icr = rd32(E1000_ICR); | |
2059 | ||
08451e25 NN |
2060 | ret_val = igb_reset_mdicnfg_82580(hw); |
2061 | if (ret_val) | |
2062 | hw_dbg("Could not reset MDICNFG based on EEPROM\n"); | |
2063 | ||
bb2ac47b AD |
2064 | /* Install any alternate MAC address into RAR0 */ |
2065 | ret_val = igb_check_alt_mac_addr(hw); | |
2066 | ||
2067 | /* Release semaphore */ | |
2068 | if (global_device_reset) | |
f96a8a0b | 2069 | hw->mac.ops.release_swfw_sync(hw, swmbsw_mask); |
bb2ac47b AD |
2070 | |
2071 | return ret_val; | |
2072 | } | |
2073 | ||
2074 | /** | |
2075 | * igb_rxpbs_adjust_82580 - adjust RXPBS value to reflect actual RX PBA size | |
2076 | * @data: data received by reading RXPBS register | |
2077 | * | |
2078 | * The 82580 uses a table based approach for packet buffer allocation sizes. | |
2079 | * This function converts the retrieved value into the correct table value | |
2080 | * 0x0 0x1 0x2 0x3 0x4 0x5 0x6 0x7 | |
2081 | * 0x0 36 72 144 1 2 4 8 16 | |
2082 | * 0x8 35 70 140 rsv rsv rsv rsv rsv | |
2083 | */ | |
2084 | u16 igb_rxpbs_adjust_82580(u32 data) | |
2085 | { | |
2086 | u16 ret_val = 0; | |
2087 | ||
2088 | if (data < E1000_82580_RXPBS_TABLE_SIZE) | |
2089 | ret_val = e1000_82580_rxpbs_table[data]; | |
2090 | ||
2091 | return ret_val; | |
2092 | } | |
2093 | ||
4322e561 CW |
2094 | /** |
2095 | * igb_validate_nvm_checksum_with_offset - Validate EEPROM | |
2096 | * checksum | |
2097 | * @hw: pointer to the HW structure | |
2098 | * @offset: offset in words of the checksum protected region | |
2099 | * | |
2100 | * Calculates the EEPROM checksum by reading/adding each word of the EEPROM | |
2101 | * and then verifies that the sum of the EEPROM is equal to 0xBABA. | |
2102 | **/ | |
bed45a6e ET |
2103 | static s32 igb_validate_nvm_checksum_with_offset(struct e1000_hw *hw, |
2104 | u16 offset) | |
4322e561 CW |
2105 | { |
2106 | s32 ret_val = 0; | |
2107 | u16 checksum = 0; | |
2108 | u16 i, nvm_data; | |
2109 | ||
2110 | for (i = offset; i < ((NVM_CHECKSUM_REG + offset) + 1); i++) { | |
2111 | ret_val = hw->nvm.ops.read(hw, i, 1, &nvm_data); | |
2112 | if (ret_val) { | |
2113 | hw_dbg("NVM Read Error\n"); | |
2114 | goto out; | |
2115 | } | |
2116 | checksum += nvm_data; | |
2117 | } | |
2118 | ||
2119 | if (checksum != (u16) NVM_SUM) { | |
2120 | hw_dbg("NVM Checksum Invalid\n"); | |
2121 | ret_val = -E1000_ERR_NVM; | |
2122 | goto out; | |
2123 | } | |
2124 | ||
2125 | out: | |
2126 | return ret_val; | |
2127 | } | |
2128 | ||
2129 | /** | |
2130 | * igb_update_nvm_checksum_with_offset - Update EEPROM | |
2131 | * checksum | |
2132 | * @hw: pointer to the HW structure | |
2133 | * @offset: offset in words of the checksum protected region | |
2134 | * | |
2135 | * Updates the EEPROM checksum by reading/adding each word of the EEPROM | |
2136 | * up to the checksum. Then calculates the EEPROM checksum and writes the | |
2137 | * value to the EEPROM. | |
2138 | **/ | |
bed45a6e | 2139 | static s32 igb_update_nvm_checksum_with_offset(struct e1000_hw *hw, u16 offset) |
4322e561 CW |
2140 | { |
2141 | s32 ret_val; | |
2142 | u16 checksum = 0; | |
2143 | u16 i, nvm_data; | |
2144 | ||
2145 | for (i = offset; i < (NVM_CHECKSUM_REG + offset); i++) { | |
2146 | ret_val = hw->nvm.ops.read(hw, i, 1, &nvm_data); | |
2147 | if (ret_val) { | |
2148 | hw_dbg("NVM Read Error while updating checksum.\n"); | |
2149 | goto out; | |
2150 | } | |
2151 | checksum += nvm_data; | |
2152 | } | |
2153 | checksum = (u16) NVM_SUM - checksum; | |
2154 | ret_val = hw->nvm.ops.write(hw, (NVM_CHECKSUM_REG + offset), 1, | |
2155 | &checksum); | |
2156 | if (ret_val) | |
2157 | hw_dbg("NVM Write Error while updating checksum.\n"); | |
2158 | ||
2159 | out: | |
2160 | return ret_val; | |
2161 | } | |
2162 | ||
2163 | /** | |
2164 | * igb_validate_nvm_checksum_82580 - Validate EEPROM checksum | |
2165 | * @hw: pointer to the HW structure | |
2166 | * | |
2167 | * Calculates the EEPROM section checksum by reading/adding each word of | |
2168 | * the EEPROM and then verifies that the sum of the EEPROM is | |
2169 | * equal to 0xBABA. | |
2170 | **/ | |
2171 | static s32 igb_validate_nvm_checksum_82580(struct e1000_hw *hw) | |
2172 | { | |
2173 | s32 ret_val = 0; | |
2174 | u16 eeprom_regions_count = 1; | |
2175 | u16 j, nvm_data; | |
2176 | u16 nvm_offset; | |
2177 | ||
2178 | ret_val = hw->nvm.ops.read(hw, NVM_COMPATIBILITY_REG_3, 1, &nvm_data); | |
2179 | if (ret_val) { | |
2180 | hw_dbg("NVM Read Error\n"); | |
2181 | goto out; | |
2182 | } | |
2183 | ||
2184 | if (nvm_data & NVM_COMPATIBILITY_BIT_MASK) { | |
34a0326e | 2185 | /* if checksums compatibility bit is set validate checksums |
b980ac18 JK |
2186 | * for all 4 ports. |
2187 | */ | |
4322e561 CW |
2188 | eeprom_regions_count = 4; |
2189 | } | |
2190 | ||
2191 | for (j = 0; j < eeprom_regions_count; j++) { | |
2192 | nvm_offset = NVM_82580_LAN_FUNC_OFFSET(j); | |
2193 | ret_val = igb_validate_nvm_checksum_with_offset(hw, | |
2194 | nvm_offset); | |
2195 | if (ret_val != 0) | |
2196 | goto out; | |
2197 | } | |
2198 | ||
2199 | out: | |
2200 | return ret_val; | |
2201 | } | |
2202 | ||
2203 | /** | |
2204 | * igb_update_nvm_checksum_82580 - Update EEPROM checksum | |
2205 | * @hw: pointer to the HW structure | |
2206 | * | |
2207 | * Updates the EEPROM section checksums for all 4 ports by reading/adding | |
2208 | * each word of the EEPROM up to the checksum. Then calculates the EEPROM | |
2209 | * checksum and writes the value to the EEPROM. | |
2210 | **/ | |
2211 | static s32 igb_update_nvm_checksum_82580(struct e1000_hw *hw) | |
2212 | { | |
2213 | s32 ret_val; | |
2214 | u16 j, nvm_data; | |
2215 | u16 nvm_offset; | |
2216 | ||
2217 | ret_val = hw->nvm.ops.read(hw, NVM_COMPATIBILITY_REG_3, 1, &nvm_data); | |
2218 | if (ret_val) { | |
2219 | hw_dbg("NVM Read Error while updating checksum" | |
2220 | " compatibility bit.\n"); | |
2221 | goto out; | |
2222 | } | |
2223 | ||
2224 | if ((nvm_data & NVM_COMPATIBILITY_BIT_MASK) == 0) { | |
2225 | /* set compatibility bit to validate checksums appropriately */ | |
2226 | nvm_data = nvm_data | NVM_COMPATIBILITY_BIT_MASK; | |
2227 | ret_val = hw->nvm.ops.write(hw, NVM_COMPATIBILITY_REG_3, 1, | |
2228 | &nvm_data); | |
2229 | if (ret_val) { | |
2230 | hw_dbg("NVM Write Error while updating checksum" | |
2231 | " compatibility bit.\n"); | |
2232 | goto out; | |
2233 | } | |
2234 | } | |
2235 | ||
2236 | for (j = 0; j < 4; j++) { | |
2237 | nvm_offset = NVM_82580_LAN_FUNC_OFFSET(j); | |
2238 | ret_val = igb_update_nvm_checksum_with_offset(hw, nvm_offset); | |
2239 | if (ret_val) | |
2240 | goto out; | |
2241 | } | |
2242 | ||
2243 | out: | |
2244 | return ret_val; | |
2245 | } | |
2246 | ||
2247 | /** | |
2248 | * igb_validate_nvm_checksum_i350 - Validate EEPROM checksum | |
2249 | * @hw: pointer to the HW structure | |
2250 | * | |
2251 | * Calculates the EEPROM section checksum by reading/adding each word of | |
2252 | * the EEPROM and then verifies that the sum of the EEPROM is | |
2253 | * equal to 0xBABA. | |
2254 | **/ | |
2255 | static s32 igb_validate_nvm_checksum_i350(struct e1000_hw *hw) | |
2256 | { | |
2257 | s32 ret_val = 0; | |
2258 | u16 j; | |
2259 | u16 nvm_offset; | |
2260 | ||
2261 | for (j = 0; j < 4; j++) { | |
2262 | nvm_offset = NVM_82580_LAN_FUNC_OFFSET(j); | |
2263 | ret_val = igb_validate_nvm_checksum_with_offset(hw, | |
2264 | nvm_offset); | |
2265 | if (ret_val != 0) | |
2266 | goto out; | |
2267 | } | |
2268 | ||
2269 | out: | |
2270 | return ret_val; | |
2271 | } | |
2272 | ||
2273 | /** | |
2274 | * igb_update_nvm_checksum_i350 - Update EEPROM checksum | |
2275 | * @hw: pointer to the HW structure | |
2276 | * | |
2277 | * Updates the EEPROM section checksums for all 4 ports by reading/adding | |
2278 | * each word of the EEPROM up to the checksum. Then calculates the EEPROM | |
2279 | * checksum and writes the value to the EEPROM. | |
2280 | **/ | |
2281 | static s32 igb_update_nvm_checksum_i350(struct e1000_hw *hw) | |
2282 | { | |
2283 | s32 ret_val = 0; | |
2284 | u16 j; | |
2285 | u16 nvm_offset; | |
2286 | ||
2287 | for (j = 0; j < 4; j++) { | |
2288 | nvm_offset = NVM_82580_LAN_FUNC_OFFSET(j); | |
2289 | ret_val = igb_update_nvm_checksum_with_offset(hw, nvm_offset); | |
2290 | if (ret_val != 0) | |
2291 | goto out; | |
2292 | } | |
2293 | ||
2294 | out: | |
2295 | return ret_val; | |
2296 | } | |
34a0326e | 2297 | |
87371b9d MV |
2298 | /** |
2299 | * __igb_access_emi_reg - Read/write EMI register | |
2300 | * @hw: pointer to the HW structure | |
2301 | * @addr: EMI address to program | |
2302 | * @data: pointer to value to read/write from/to the EMI address | |
2303 | * @read: boolean flag to indicate read or write | |
2304 | **/ | |
2305 | static s32 __igb_access_emi_reg(struct e1000_hw *hw, u16 address, | |
2306 | u16 *data, bool read) | |
2307 | { | |
2308 | s32 ret_val = E1000_SUCCESS; | |
2309 | ||
2310 | ret_val = hw->phy.ops.write_reg(hw, E1000_EMIADD, address); | |
2311 | if (ret_val) | |
2312 | return ret_val; | |
2313 | ||
2314 | if (read) | |
2315 | ret_val = hw->phy.ops.read_reg(hw, E1000_EMIDATA, data); | |
2316 | else | |
2317 | ret_val = hw->phy.ops.write_reg(hw, E1000_EMIDATA, *data); | |
2318 | ||
2319 | return ret_val; | |
2320 | } | |
2321 | ||
2322 | /** | |
2323 | * igb_read_emi_reg - Read Extended Management Interface register | |
2324 | * @hw: pointer to the HW structure | |
2325 | * @addr: EMI address to program | |
2326 | * @data: value to be read from the EMI address | |
2327 | **/ | |
2328 | s32 igb_read_emi_reg(struct e1000_hw *hw, u16 addr, u16 *data) | |
2329 | { | |
2330 | return __igb_access_emi_reg(hw, addr, data, true); | |
2331 | } | |
2332 | ||
09b068d4 CW |
2333 | /** |
2334 | * igb_set_eee_i350 - Enable/disable EEE support | |
2335 | * @hw: pointer to the HW structure | |
2336 | * | |
2337 | * Enable/disable EEE based on setting in dev_spec structure. | |
2338 | * | |
2339 | **/ | |
2340 | s32 igb_set_eee_i350(struct e1000_hw *hw) | |
2341 | { | |
2342 | s32 ret_val = 0; | |
e5461112 | 2343 | u32 ipcnfg, eeer; |
09b068d4 | 2344 | |
e5461112 AA |
2345 | if ((hw->mac.type < e1000_i350) || |
2346 | (hw->phy.media_type != e1000_media_type_copper)) | |
09b068d4 CW |
2347 | goto out; |
2348 | ipcnfg = rd32(E1000_IPCNFG); | |
2349 | eeer = rd32(E1000_EEER); | |
2350 | ||
2351 | /* enable or disable per user setting */ | |
2352 | if (!(hw->dev_spec._82575.eee_disable)) { | |
40b20122 CW |
2353 | u32 eee_su = rd32(E1000_EEE_SU); |
2354 | ||
2355 | ipcnfg |= (E1000_IPCNFG_EEE_1G_AN | E1000_IPCNFG_EEE_100M_AN); | |
2356 | eeer |= (E1000_EEER_TX_LPI_EN | E1000_EEER_RX_LPI_EN | | |
09b068d4 CW |
2357 | E1000_EEER_LPI_FC); |
2358 | ||
40b20122 CW |
2359 | /* This bit should not be set in normal operation. */ |
2360 | if (eee_su & E1000_EEE_SU_LPI_CLK_STP) | |
2361 | hw_dbg("LPI Clock Stop Bit should not be set!\n"); | |
2362 | ||
09b068d4 CW |
2363 | } else { |
2364 | ipcnfg &= ~(E1000_IPCNFG_EEE_1G_AN | | |
2365 | E1000_IPCNFG_EEE_100M_AN); | |
2366 | eeer &= ~(E1000_EEER_TX_LPI_EN | | |
2367 | E1000_EEER_RX_LPI_EN | | |
2368 | E1000_EEER_LPI_FC); | |
2369 | } | |
2370 | wr32(E1000_IPCNFG, ipcnfg); | |
2371 | wr32(E1000_EEER, eeer); | |
e5461112 AA |
2372 | rd32(E1000_IPCNFG); |
2373 | rd32(E1000_EEER); | |
09b068d4 CW |
2374 | out: |
2375 | ||
2376 | return ret_val; | |
2377 | } | |
4322e561 | 2378 | |
ceb5f13b CW |
2379 | /** |
2380 | * igb_set_eee_i354 - Enable/disable EEE support | |
2381 | * @hw: pointer to the HW structure | |
2382 | * | |
2383 | * Enable/disable EEE legacy mode based on setting in dev_spec structure. | |
2384 | * | |
2385 | **/ | |
2386 | s32 igb_set_eee_i354(struct e1000_hw *hw) | |
2387 | { | |
2388 | struct e1000_phy_info *phy = &hw->phy; | |
2389 | s32 ret_val = 0; | |
2390 | u16 phy_data; | |
2391 | ||
2392 | if ((hw->phy.media_type != e1000_media_type_copper) || | |
2393 | (phy->id != M88E1545_E_PHY_ID)) | |
2394 | goto out; | |
2395 | ||
2396 | if (!hw->dev_spec._82575.eee_disable) { | |
2397 | /* Switch to PHY page 18. */ | |
2398 | ret_val = phy->ops.write_reg(hw, E1000_M88E1545_PAGE_ADDR, 18); | |
2399 | if (ret_val) | |
2400 | goto out; | |
2401 | ||
2402 | ret_val = phy->ops.read_reg(hw, E1000_M88E1545_EEE_CTRL_1, | |
2403 | &phy_data); | |
2404 | if (ret_val) | |
2405 | goto out; | |
2406 | ||
2407 | phy_data |= E1000_M88E1545_EEE_CTRL_1_MS; | |
2408 | ret_val = phy->ops.write_reg(hw, E1000_M88E1545_EEE_CTRL_1, | |
2409 | phy_data); | |
2410 | if (ret_val) | |
2411 | goto out; | |
2412 | ||
2413 | /* Return the PHY to page 0. */ | |
2414 | ret_val = phy->ops.write_reg(hw, E1000_M88E1545_PAGE_ADDR, 0); | |
2415 | if (ret_val) | |
2416 | goto out; | |
2417 | ||
2418 | /* Turn on EEE advertisement. */ | |
2419 | ret_val = igb_read_xmdio_reg(hw, E1000_EEE_ADV_ADDR_I354, | |
2420 | E1000_EEE_ADV_DEV_I354, | |
2421 | &phy_data); | |
2422 | if (ret_val) | |
2423 | goto out; | |
2424 | ||
2425 | phy_data |= E1000_EEE_ADV_100_SUPPORTED | | |
2426 | E1000_EEE_ADV_1000_SUPPORTED; | |
2427 | ret_val = igb_write_xmdio_reg(hw, E1000_EEE_ADV_ADDR_I354, | |
2428 | E1000_EEE_ADV_DEV_I354, | |
2429 | phy_data); | |
2430 | } else { | |
2431 | /* Turn off EEE advertisement. */ | |
2432 | ret_val = igb_read_xmdio_reg(hw, E1000_EEE_ADV_ADDR_I354, | |
2433 | E1000_EEE_ADV_DEV_I354, | |
2434 | &phy_data); | |
2435 | if (ret_val) | |
2436 | goto out; | |
2437 | ||
2438 | phy_data &= ~(E1000_EEE_ADV_100_SUPPORTED | | |
2439 | E1000_EEE_ADV_1000_SUPPORTED); | |
2440 | ret_val = igb_write_xmdio_reg(hw, E1000_EEE_ADV_ADDR_I354, | |
2441 | E1000_EEE_ADV_DEV_I354, | |
2442 | phy_data); | |
2443 | } | |
2444 | ||
2445 | out: | |
2446 | return ret_val; | |
2447 | } | |
2448 | ||
2449 | /** | |
2450 | * igb_get_eee_status_i354 - Get EEE status | |
2451 | * @hw: pointer to the HW structure | |
2452 | * @status: EEE status | |
2453 | * | |
2454 | * Get EEE status by guessing based on whether Tx or Rx LPI indications have | |
2455 | * been received. | |
2456 | **/ | |
2457 | s32 igb_get_eee_status_i354(struct e1000_hw *hw, bool *status) | |
2458 | { | |
2459 | struct e1000_phy_info *phy = &hw->phy; | |
2460 | s32 ret_val = 0; | |
2461 | u16 phy_data; | |
2462 | ||
2463 | /* Check if EEE is supported on this device. */ | |
2464 | if ((hw->phy.media_type != e1000_media_type_copper) || | |
2465 | (phy->id != M88E1545_E_PHY_ID)) | |
2466 | goto out; | |
2467 | ||
2468 | ret_val = igb_read_xmdio_reg(hw, E1000_PCS_STATUS_ADDR_I354, | |
2469 | E1000_PCS_STATUS_DEV_I354, | |
2470 | &phy_data); | |
2471 | if (ret_val) | |
2472 | goto out; | |
2473 | ||
2474 | *status = phy_data & (E1000_PCS_STATUS_TX_LPI_RCVD | | |
2475 | E1000_PCS_STATUS_RX_LPI_RCVD) ? true : false; | |
2476 | ||
2477 | out: | |
2478 | return ret_val; | |
2479 | } | |
2480 | ||
e428893b CW |
2481 | static const u8 e1000_emc_temp_data[4] = { |
2482 | E1000_EMC_INTERNAL_DATA, | |
2483 | E1000_EMC_DIODE1_DATA, | |
2484 | E1000_EMC_DIODE2_DATA, | |
2485 | E1000_EMC_DIODE3_DATA | |
2486 | }; | |
2487 | static const u8 e1000_emc_therm_limit[4] = { | |
2488 | E1000_EMC_INTERNAL_THERM_LIMIT, | |
2489 | E1000_EMC_DIODE1_THERM_LIMIT, | |
2490 | E1000_EMC_DIODE2_THERM_LIMIT, | |
2491 | E1000_EMC_DIODE3_THERM_LIMIT | |
2492 | }; | |
2493 | ||
b980ac18 JK |
2494 | /** |
2495 | * igb_get_thermal_sensor_data_generic - Gathers thermal sensor data | |
e428893b CW |
2496 | * @hw: pointer to hardware structure |
2497 | * | |
2498 | * Updates the temperatures in mac.thermal_sensor_data | |
b980ac18 | 2499 | **/ |
e428893b CW |
2500 | s32 igb_get_thermal_sensor_data_generic(struct e1000_hw *hw) |
2501 | { | |
2502 | s32 status = E1000_SUCCESS; | |
2503 | u16 ets_offset; | |
2504 | u16 ets_cfg; | |
2505 | u16 ets_sensor; | |
2506 | u8 num_sensors; | |
2507 | u8 sensor_index; | |
2508 | u8 sensor_location; | |
2509 | u8 i; | |
2510 | struct e1000_thermal_sensor_data *data = &hw->mac.thermal_sensor_data; | |
2511 | ||
2512 | if ((hw->mac.type != e1000_i350) || (hw->bus.func != 0)) | |
2513 | return E1000_NOT_IMPLEMENTED; | |
2514 | ||
2515 | data->sensor[0].temp = (rd32(E1000_THMJT) & 0xFF); | |
2516 | ||
2517 | /* Return the internal sensor only if ETS is unsupported */ | |
2518 | hw->nvm.ops.read(hw, NVM_ETS_CFG, 1, &ets_offset); | |
2519 | if ((ets_offset == 0x0000) || (ets_offset == 0xFFFF)) | |
2520 | return status; | |
2521 | ||
2522 | hw->nvm.ops.read(hw, ets_offset, 1, &ets_cfg); | |
2523 | if (((ets_cfg & NVM_ETS_TYPE_MASK) >> NVM_ETS_TYPE_SHIFT) | |
2524 | != NVM_ETS_TYPE_EMC) | |
2525 | return E1000_NOT_IMPLEMENTED; | |
2526 | ||
2527 | num_sensors = (ets_cfg & NVM_ETS_NUM_SENSORS_MASK); | |
2528 | if (num_sensors > E1000_MAX_SENSORS) | |
2529 | num_sensors = E1000_MAX_SENSORS; | |
2530 | ||
2531 | for (i = 1; i < num_sensors; i++) { | |
2532 | hw->nvm.ops.read(hw, (ets_offset + i), 1, &ets_sensor); | |
2533 | sensor_index = ((ets_sensor & NVM_ETS_DATA_INDEX_MASK) >> | |
2534 | NVM_ETS_DATA_INDEX_SHIFT); | |
2535 | sensor_location = ((ets_sensor & NVM_ETS_DATA_LOC_MASK) >> | |
2536 | NVM_ETS_DATA_LOC_SHIFT); | |
2537 | ||
2538 | if (sensor_location != 0) | |
2539 | hw->phy.ops.read_i2c_byte(hw, | |
2540 | e1000_emc_temp_data[sensor_index], | |
2541 | E1000_I2C_THERMAL_SENSOR_ADDR, | |
2542 | &data->sensor[i].temp); | |
2543 | } | |
2544 | return status; | |
2545 | } | |
2546 | ||
b980ac18 JK |
2547 | /** |
2548 | * igb_init_thermal_sensor_thresh_generic - Sets thermal sensor thresholds | |
e428893b CW |
2549 | * @hw: pointer to hardware structure |
2550 | * | |
2551 | * Sets the thermal sensor thresholds according to the NVM map | |
2552 | * and save off the threshold and location values into mac.thermal_sensor_data | |
b980ac18 | 2553 | **/ |
e428893b CW |
2554 | s32 igb_init_thermal_sensor_thresh_generic(struct e1000_hw *hw) |
2555 | { | |
2556 | s32 status = E1000_SUCCESS; | |
2557 | u16 ets_offset; | |
2558 | u16 ets_cfg; | |
2559 | u16 ets_sensor; | |
2560 | u8 low_thresh_delta; | |
2561 | u8 num_sensors; | |
2562 | u8 sensor_index; | |
2563 | u8 sensor_location; | |
2564 | u8 therm_limit; | |
2565 | u8 i; | |
2566 | struct e1000_thermal_sensor_data *data = &hw->mac.thermal_sensor_data; | |
2567 | ||
2568 | if ((hw->mac.type != e1000_i350) || (hw->bus.func != 0)) | |
2569 | return E1000_NOT_IMPLEMENTED; | |
2570 | ||
2571 | memset(data, 0, sizeof(struct e1000_thermal_sensor_data)); | |
2572 | ||
2573 | data->sensor[0].location = 0x1; | |
2574 | data->sensor[0].caution_thresh = | |
2575 | (rd32(E1000_THHIGHTC) & 0xFF); | |
2576 | data->sensor[0].max_op_thresh = | |
2577 | (rd32(E1000_THLOWTC) & 0xFF); | |
2578 | ||
2579 | /* Return the internal sensor only if ETS is unsupported */ | |
2580 | hw->nvm.ops.read(hw, NVM_ETS_CFG, 1, &ets_offset); | |
2581 | if ((ets_offset == 0x0000) || (ets_offset == 0xFFFF)) | |
2582 | return status; | |
2583 | ||
2584 | hw->nvm.ops.read(hw, ets_offset, 1, &ets_cfg); | |
2585 | if (((ets_cfg & NVM_ETS_TYPE_MASK) >> NVM_ETS_TYPE_SHIFT) | |
2586 | != NVM_ETS_TYPE_EMC) | |
2587 | return E1000_NOT_IMPLEMENTED; | |
2588 | ||
2589 | low_thresh_delta = ((ets_cfg & NVM_ETS_LTHRES_DELTA_MASK) >> | |
2590 | NVM_ETS_LTHRES_DELTA_SHIFT); | |
2591 | num_sensors = (ets_cfg & NVM_ETS_NUM_SENSORS_MASK); | |
2592 | ||
2593 | for (i = 1; i <= num_sensors; i++) { | |
2594 | hw->nvm.ops.read(hw, (ets_offset + i), 1, &ets_sensor); | |
2595 | sensor_index = ((ets_sensor & NVM_ETS_DATA_INDEX_MASK) >> | |
2596 | NVM_ETS_DATA_INDEX_SHIFT); | |
2597 | sensor_location = ((ets_sensor & NVM_ETS_DATA_LOC_MASK) >> | |
2598 | NVM_ETS_DATA_LOC_SHIFT); | |
2599 | therm_limit = ets_sensor & NVM_ETS_DATA_HTHRESH_MASK; | |
2600 | ||
2601 | hw->phy.ops.write_i2c_byte(hw, | |
2602 | e1000_emc_therm_limit[sensor_index], | |
2603 | E1000_I2C_THERMAL_SENSOR_ADDR, | |
2604 | therm_limit); | |
2605 | ||
2606 | if ((i < E1000_MAX_SENSORS) && (sensor_location != 0)) { | |
2607 | data->sensor[i].location = sensor_location; | |
2608 | data->sensor[i].caution_thresh = therm_limit; | |
2609 | data->sensor[i].max_op_thresh = therm_limit - | |
2610 | low_thresh_delta; | |
2611 | } | |
2612 | } | |
2613 | return status; | |
2614 | } | |
2615 | ||
9d5c8243 | 2616 | static struct e1000_mac_operations e1000_mac_ops_82575 = { |
9d5c8243 AK |
2617 | .init_hw = igb_init_hw_82575, |
2618 | .check_for_link = igb_check_for_link_82575, | |
2d064c06 | 2619 | .rar_set = igb_rar_set, |
9d5c8243 AK |
2620 | .read_mac_addr = igb_read_mac_addr_82575, |
2621 | .get_speed_and_duplex = igb_get_speed_and_duplex_copper, | |
e428893b CW |
2622 | #ifdef CONFIG_IGB_HWMON |
2623 | .get_thermal_sensor_data = igb_get_thermal_sensor_data_generic, | |
2624 | .init_thermal_sensor_thresh = igb_init_thermal_sensor_thresh_generic, | |
2625 | #endif | |
9d5c8243 AK |
2626 | }; |
2627 | ||
2628 | static struct e1000_phy_operations e1000_phy_ops_82575 = { | |
a8d2a0c2 | 2629 | .acquire = igb_acquire_phy_82575, |
9d5c8243 | 2630 | .get_cfg_done = igb_get_cfg_done_82575, |
a8d2a0c2 | 2631 | .release = igb_release_phy_82575, |
441fc6fd CW |
2632 | .write_i2c_byte = igb_write_i2c_byte, |
2633 | .read_i2c_byte = igb_read_i2c_byte, | |
9d5c8243 AK |
2634 | }; |
2635 | ||
2636 | static struct e1000_nvm_operations e1000_nvm_ops_82575 = { | |
312c75ae AD |
2637 | .acquire = igb_acquire_nvm_82575, |
2638 | .read = igb_read_nvm_eerd, | |
2639 | .release = igb_release_nvm_82575, | |
2640 | .write = igb_write_nvm_spi, | |
9d5c8243 AK |
2641 | }; |
2642 | ||
2643 | const struct e1000_info e1000_82575_info = { | |
2644 | .get_invariants = igb_get_invariants_82575, | |
2645 | .mac_ops = &e1000_mac_ops_82575, | |
2646 | .phy_ops = &e1000_phy_ops_82575, | |
2647 | .nvm_ops = &e1000_nvm_ops_82575, | |
2648 | }; | |
2649 |