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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: | |
f96a8a0b CW |
103 | case e1000_i210: |
104 | case e1000_i211: | |
4085f746 NN |
105 | reg = rd32(E1000_MDICNFG); |
106 | ext_mdio = !!(reg & E1000_MDICNFG_EXT_MDIO); | |
107 | break; | |
108 | default: | |
109 | break; | |
110 | } | |
111 | return ext_mdio; | |
112 | } | |
113 | ||
73bfcd9a AA |
114 | /** |
115 | * igb_init_phy_params_82575 - Init PHY func ptrs. | |
116 | * @hw: pointer to the HW structure | |
117 | **/ | |
118 | static s32 igb_init_phy_params_82575(struct e1000_hw *hw) | |
119 | { | |
120 | struct e1000_phy_info *phy = &hw->phy; | |
121 | s32 ret_val = 0; | |
122 | u32 ctrl_ext; | |
123 | ||
124 | if (hw->phy.media_type != e1000_media_type_copper) { | |
125 | phy->type = e1000_phy_none; | |
126 | goto out; | |
127 | } | |
128 | ||
129 | phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT; | |
130 | phy->reset_delay_us = 100; | |
131 | ||
132 | ctrl_ext = rd32(E1000_CTRL_EXT); | |
133 | ||
134 | if (igb_sgmii_active_82575(hw)) { | |
135 | phy->ops.reset = igb_phy_hw_reset_sgmii_82575; | |
136 | ctrl_ext |= E1000_CTRL_I2C_ENA; | |
137 | } else { | |
138 | phy->ops.reset = igb_phy_hw_reset; | |
139 | ctrl_ext &= ~E1000_CTRL_I2C_ENA; | |
140 | } | |
141 | ||
142 | wr32(E1000_CTRL_EXT, ctrl_ext); | |
143 | igb_reset_mdicnfg_82580(hw); | |
144 | ||
145 | if (igb_sgmii_active_82575(hw) && !igb_sgmii_uses_mdio_82575(hw)) { | |
146 | phy->ops.read_reg = igb_read_phy_reg_sgmii_82575; | |
147 | phy->ops.write_reg = igb_write_phy_reg_sgmii_82575; | |
148 | } else { | |
149 | switch (hw->mac.type) { | |
150 | case e1000_82580: | |
151 | case e1000_i350: | |
152 | phy->ops.read_reg = igb_read_phy_reg_82580; | |
153 | phy->ops.write_reg = igb_write_phy_reg_82580; | |
154 | break; | |
155 | case e1000_i210: | |
156 | case e1000_i211: | |
157 | phy->ops.read_reg = igb_read_phy_reg_gs40g; | |
158 | phy->ops.write_reg = igb_write_phy_reg_gs40g; | |
159 | break; | |
160 | default: | |
161 | phy->ops.read_reg = igb_read_phy_reg_igp; | |
162 | phy->ops.write_reg = igb_write_phy_reg_igp; | |
163 | } | |
164 | } | |
165 | ||
166 | /* set lan id */ | |
167 | hw->bus.func = (rd32(E1000_STATUS) & E1000_STATUS_FUNC_MASK) >> | |
168 | E1000_STATUS_FUNC_SHIFT; | |
169 | ||
170 | /* Set phy->phy_addr and phy->id. */ | |
171 | ret_val = igb_get_phy_id_82575(hw); | |
172 | if (ret_val) | |
173 | return ret_val; | |
174 | ||
175 | /* Verify phy id and set remaining function pointers */ | |
176 | switch (phy->id) { | |
177 | case I347AT4_E_PHY_ID: | |
178 | case M88E1112_E_PHY_ID: | |
179 | case M88E1111_I_PHY_ID: | |
180 | phy->type = e1000_phy_m88; | |
181 | phy->ops.get_phy_info = igb_get_phy_info_m88; | |
182 | if (phy->id == I347AT4_E_PHY_ID || | |
183 | phy->id == M88E1112_E_PHY_ID) | |
184 | phy->ops.get_cable_length = | |
185 | igb_get_cable_length_m88_gen2; | |
186 | else | |
187 | phy->ops.get_cable_length = igb_get_cable_length_m88; | |
188 | phy->ops.force_speed_duplex = igb_phy_force_speed_duplex_m88; | |
189 | break; | |
190 | case IGP03E1000_E_PHY_ID: | |
191 | phy->type = e1000_phy_igp_3; | |
192 | phy->ops.get_phy_info = igb_get_phy_info_igp; | |
193 | phy->ops.get_cable_length = igb_get_cable_length_igp_2; | |
194 | phy->ops.force_speed_duplex = igb_phy_force_speed_duplex_igp; | |
195 | phy->ops.set_d0_lplu_state = igb_set_d0_lplu_state_82575; | |
196 | phy->ops.set_d3_lplu_state = igb_set_d3_lplu_state; | |
197 | break; | |
198 | case I82580_I_PHY_ID: | |
199 | case I350_I_PHY_ID: | |
200 | phy->type = e1000_phy_82580; | |
201 | phy->ops.force_speed_duplex = | |
202 | igb_phy_force_speed_duplex_82580; | |
203 | phy->ops.get_cable_length = igb_get_cable_length_82580; | |
204 | phy->ops.get_phy_info = igb_get_phy_info_82580; | |
205 | phy->ops.set_d0_lplu_state = igb_set_d0_lplu_state_82580; | |
206 | phy->ops.set_d3_lplu_state = igb_set_d3_lplu_state_82580; | |
207 | break; | |
208 | case I210_I_PHY_ID: | |
209 | phy->type = e1000_phy_i210; | |
210 | phy->ops.check_polarity = igb_check_polarity_m88; | |
211 | phy->ops.get_phy_info = igb_get_phy_info_m88; | |
212 | phy->ops.get_cable_length = igb_get_cable_length_m88_gen2; | |
213 | phy->ops.set_d0_lplu_state = igb_set_d0_lplu_state_82580; | |
214 | phy->ops.set_d3_lplu_state = igb_set_d3_lplu_state_82580; | |
215 | phy->ops.force_speed_duplex = igb_phy_force_speed_duplex_m88; | |
216 | break; | |
217 | default: | |
218 | ret_val = -E1000_ERR_PHY; | |
219 | goto out; | |
220 | } | |
221 | ||
222 | out: | |
223 | return ret_val; | |
224 | } | |
225 | ||
56d8c27f AA |
226 | /** |
227 | * igb_init_nvm_params_82575 - Init NVM func ptrs. | |
228 | * @hw: pointer to the HW structure | |
229 | **/ | |
230 | s32 igb_init_nvm_params_82575(struct e1000_hw *hw) | |
231 | { | |
232 | struct e1000_nvm_info *nvm = &hw->nvm; | |
233 | u32 eecd = rd32(E1000_EECD); | |
234 | u16 size; | |
235 | ||
236 | size = (u16)((eecd & E1000_EECD_SIZE_EX_MASK) >> | |
237 | E1000_EECD_SIZE_EX_SHIFT); | |
238 | /* Added to a constant, "size" becomes the left-shift value | |
239 | * for setting word_size. | |
240 | */ | |
241 | size += NVM_WORD_SIZE_BASE_SHIFT; | |
242 | ||
243 | /* Just in case size is out of range, cap it to the largest | |
244 | * EEPROM size supported | |
245 | */ | |
246 | if (size > 15) | |
247 | size = 15; | |
248 | ||
249 | nvm->word_size = 1 << size; | |
250 | if (hw->mac.type < e1000_i210) { | |
251 | nvm->opcode_bits = 8; | |
252 | nvm->delay_usec = 1; | |
253 | ||
254 | switch (nvm->override) { | |
255 | case e1000_nvm_override_spi_large: | |
256 | nvm->page_size = 32; | |
257 | nvm->address_bits = 16; | |
258 | break; | |
259 | case e1000_nvm_override_spi_small: | |
260 | nvm->page_size = 8; | |
261 | nvm->address_bits = 8; | |
262 | break; | |
263 | default: | |
264 | nvm->page_size = eecd & E1000_EECD_ADDR_BITS ? 32 : 8; | |
265 | nvm->address_bits = eecd & E1000_EECD_ADDR_BITS ? | |
266 | 16 : 8; | |
267 | break; | |
268 | } | |
269 | if (nvm->word_size == (1 << 15)) | |
270 | nvm->page_size = 128; | |
271 | ||
272 | nvm->type = e1000_nvm_eeprom_spi; | |
273 | } else { | |
274 | nvm->type = e1000_nvm_flash_hw; | |
275 | } | |
276 | ||
277 | /* NVM Function Pointers */ | |
278 | switch (hw->mac.type) { | |
279 | case e1000_82580: | |
280 | nvm->ops.validate = igb_validate_nvm_checksum_82580; | |
281 | nvm->ops.update = igb_update_nvm_checksum_82580; | |
282 | nvm->ops.acquire = igb_acquire_nvm_82575; | |
283 | nvm->ops.release = igb_release_nvm_82575; | |
284 | if (nvm->word_size < (1 << 15)) | |
285 | nvm->ops.read = igb_read_nvm_eerd; | |
286 | else | |
287 | nvm->ops.read = igb_read_nvm_spi; | |
288 | nvm->ops.write = igb_write_nvm_spi; | |
289 | break; | |
290 | case e1000_i350: | |
291 | nvm->ops.validate = igb_validate_nvm_checksum_i350; | |
292 | nvm->ops.update = igb_update_nvm_checksum_i350; | |
293 | nvm->ops.acquire = igb_acquire_nvm_82575; | |
294 | nvm->ops.release = igb_release_nvm_82575; | |
295 | if (nvm->word_size < (1 << 15)) | |
296 | nvm->ops.read = igb_read_nvm_eerd; | |
297 | else | |
298 | nvm->ops.read = igb_read_nvm_spi; | |
299 | nvm->ops.write = igb_write_nvm_spi; | |
300 | break; | |
301 | case e1000_i210: | |
302 | nvm->ops.validate = igb_validate_nvm_checksum_i210; | |
303 | nvm->ops.update = igb_update_nvm_checksum_i210; | |
304 | nvm->ops.acquire = igb_acquire_nvm_i210; | |
305 | nvm->ops.release = igb_release_nvm_i210; | |
306 | nvm->ops.read = igb_read_nvm_srrd_i210; | |
307 | nvm->ops.write = igb_write_nvm_srwr_i210; | |
308 | nvm->ops.valid_led_default = igb_valid_led_default_i210; | |
309 | break; | |
310 | case e1000_i211: | |
311 | nvm->ops.acquire = igb_acquire_nvm_i210; | |
312 | nvm->ops.release = igb_release_nvm_i210; | |
313 | nvm->ops.read = igb_read_nvm_i211; | |
314 | nvm->ops.valid_led_default = igb_valid_led_default_i210; | |
315 | nvm->ops.validate = NULL; | |
316 | nvm->ops.update = NULL; | |
317 | nvm->ops.write = NULL; | |
318 | break; | |
319 | default: | |
320 | nvm->ops.validate = igb_validate_nvm_checksum; | |
321 | nvm->ops.update = igb_update_nvm_checksum; | |
322 | nvm->ops.acquire = igb_acquire_nvm_82575; | |
323 | nvm->ops.release = igb_release_nvm_82575; | |
324 | if (nvm->word_size < (1 << 15)) | |
325 | nvm->ops.read = igb_read_nvm_eerd; | |
326 | else | |
327 | nvm->ops.read = igb_read_nvm_spi; | |
328 | nvm->ops.write = igb_write_nvm_spi; | |
329 | break; | |
330 | } | |
331 | ||
332 | return 0; | |
333 | } | |
334 | ||
9d5c8243 AK |
335 | static s32 igb_get_invariants_82575(struct e1000_hw *hw) |
336 | { | |
337 | struct e1000_phy_info *phy = &hw->phy; | |
338 | struct e1000_nvm_info *nvm = &hw->nvm; | |
339 | struct e1000_mac_info *mac = &hw->mac; | |
c1889bfe | 340 | struct e1000_dev_spec_82575 * dev_spec = &hw->dev_spec._82575; |
9d5c8243 AK |
341 | u32 eecd; |
342 | s32 ret_val; | |
343 | u16 size; | |
344 | u32 ctrl_ext = 0; | |
345 | ||
346 | switch (hw->device_id) { | |
347 | case E1000_DEV_ID_82575EB_COPPER: | |
348 | case E1000_DEV_ID_82575EB_FIBER_SERDES: | |
349 | case E1000_DEV_ID_82575GB_QUAD_COPPER: | |
350 | mac->type = e1000_82575; | |
351 | break; | |
2d064c06 | 352 | case E1000_DEV_ID_82576: |
9eb2341d | 353 | case E1000_DEV_ID_82576_NS: |
747d49ba | 354 | case E1000_DEV_ID_82576_NS_SERDES: |
2d064c06 AD |
355 | case E1000_DEV_ID_82576_FIBER: |
356 | case E1000_DEV_ID_82576_SERDES: | |
c8ea5ea9 | 357 | case E1000_DEV_ID_82576_QUAD_COPPER: |
b894fa26 | 358 | case E1000_DEV_ID_82576_QUAD_COPPER_ET2: |
4703bf73 | 359 | case E1000_DEV_ID_82576_SERDES_QUAD: |
2d064c06 AD |
360 | mac->type = e1000_82576; |
361 | break; | |
bb2ac47b AD |
362 | case E1000_DEV_ID_82580_COPPER: |
363 | case E1000_DEV_ID_82580_FIBER: | |
6493d24f | 364 | case E1000_DEV_ID_82580_QUAD_FIBER: |
bb2ac47b AD |
365 | case E1000_DEV_ID_82580_SERDES: |
366 | case E1000_DEV_ID_82580_SGMII: | |
367 | case E1000_DEV_ID_82580_COPPER_DUAL: | |
308fb39a JG |
368 | case E1000_DEV_ID_DH89XXCC_SGMII: |
369 | case E1000_DEV_ID_DH89XXCC_SERDES: | |
1b5dda33 GJ |
370 | case E1000_DEV_ID_DH89XXCC_BACKPLANE: |
371 | case E1000_DEV_ID_DH89XXCC_SFP: | |
bb2ac47b AD |
372 | mac->type = e1000_82580; |
373 | break; | |
d2ba2ed8 AD |
374 | case E1000_DEV_ID_I350_COPPER: |
375 | case E1000_DEV_ID_I350_FIBER: | |
376 | case E1000_DEV_ID_I350_SERDES: | |
377 | case E1000_DEV_ID_I350_SGMII: | |
378 | mac->type = e1000_i350; | |
379 | break; | |
f96a8a0b CW |
380 | case E1000_DEV_ID_I210_COPPER: |
381 | case E1000_DEV_ID_I210_COPPER_OEM1: | |
382 | case E1000_DEV_ID_I210_COPPER_IT: | |
383 | case E1000_DEV_ID_I210_FIBER: | |
384 | case E1000_DEV_ID_I210_SERDES: | |
385 | case E1000_DEV_ID_I210_SGMII: | |
386 | mac->type = e1000_i210; | |
387 | break; | |
388 | case E1000_DEV_ID_I211_COPPER: | |
389 | mac->type = e1000_i211; | |
390 | break; | |
9d5c8243 AK |
391 | default: |
392 | return -E1000_ERR_MAC_INIT; | |
393 | break; | |
394 | } | |
395 | ||
9d5c8243 AK |
396 | /* Set media type */ |
397 | /* | |
398 | * The 82575 uses bits 22:23 for link mode. The mode can be changed | |
399 | * based on the EEPROM. We cannot rely upon device ID. There | |
400 | * is no distinguishable difference between fiber and internal | |
401 | * SerDes mode on the 82575. There can be an external PHY attached | |
402 | * on the SGMII interface. For this, we'll set sgmii_active to true. | |
403 | */ | |
404 | phy->media_type = e1000_media_type_copper; | |
405 | dev_spec->sgmii_active = false; | |
406 | ||
407 | ctrl_ext = rd32(E1000_CTRL_EXT); | |
2fb02a26 AD |
408 | switch (ctrl_ext & E1000_CTRL_EXT_LINK_MODE_MASK) { |
409 | case E1000_CTRL_EXT_LINK_MODE_SGMII: | |
9d5c8243 | 410 | dev_spec->sgmii_active = true; |
2fb02a26 | 411 | break; |
bb2ac47b | 412 | case E1000_CTRL_EXT_LINK_MODE_1000BASE_KX: |
2fb02a26 AD |
413 | case E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES: |
414 | hw->phy.media_type = e1000_media_type_internal_serdes; | |
2fb02a26 AD |
415 | break; |
416 | default: | |
2fb02a26 | 417 | break; |
9d5c8243 | 418 | } |
2fb02a26 | 419 | |
9d5c8243 AK |
420 | /* Set mta register count */ |
421 | mac->mta_reg_count = 128; | |
422 | /* Set rar entry count */ | |
f96a8a0b CW |
423 | switch (mac->type) { |
424 | case e1000_82576: | |
2d064c06 | 425 | mac->rar_entry_count = E1000_RAR_ENTRIES_82576; |
f96a8a0b CW |
426 | break; |
427 | case e1000_82580: | |
bb2ac47b | 428 | mac->rar_entry_count = E1000_RAR_ENTRIES_82580; |
f96a8a0b CW |
429 | break; |
430 | case e1000_i350: | |
d2ba2ed8 | 431 | mac->rar_entry_count = E1000_RAR_ENTRIES_I350; |
f96a8a0b CW |
432 | break; |
433 | default: | |
434 | mac->rar_entry_count = E1000_RAR_ENTRIES_82575; | |
435 | break; | |
436 | } | |
bb2ac47b | 437 | /* reset */ |
d2ba2ed8 | 438 | if (mac->type >= e1000_82580) |
bb2ac47b AD |
439 | mac->ops.reset_hw = igb_reset_hw_82580; |
440 | else | |
441 | mac->ops.reset_hw = igb_reset_hw_82575; | |
f96a8a0b CW |
442 | |
443 | if (mac->type >= e1000_i210) { | |
444 | mac->ops.acquire_swfw_sync = igb_acquire_swfw_sync_i210; | |
445 | mac->ops.release_swfw_sync = igb_release_swfw_sync_i210; | |
446 | } else { | |
447 | mac->ops.acquire_swfw_sync = igb_acquire_swfw_sync_82575; | |
448 | mac->ops.release_swfw_sync = igb_release_swfw_sync_82575; | |
449 | } | |
450 | ||
9d5c8243 AK |
451 | /* Set if part includes ASF firmware */ |
452 | mac->asf_firmware_present = true; | |
453 | /* Set if manageability features are enabled. */ | |
454 | mac->arc_subsystem_valid = | |
455 | (rd32(E1000_FWSM) & E1000_FWSM_MODE_MASK) | |
456 | ? true : false; | |
f96a8a0b CW |
457 | /* enable EEE on i350 parts and later parts */ |
458 | if (mac->type >= e1000_i350) | |
09b068d4 CW |
459 | dev_spec->eee_disable = false; |
460 | else | |
461 | dev_spec->eee_disable = true; | |
9d5c8243 AK |
462 | /* physical interface link setup */ |
463 | mac->ops.setup_physical_interface = | |
464 | (hw->phy.media_type == e1000_media_type_copper) | |
465 | ? igb_setup_copper_link_82575 | |
2fb02a26 | 466 | : igb_setup_serdes_link_82575; |
9d5c8243 AK |
467 | |
468 | /* NVM initialization */ | |
469 | eecd = rd32(E1000_EECD); | |
9d5c8243 AK |
470 | size = (u16)((eecd & E1000_EECD_SIZE_EX_MASK) >> |
471 | E1000_EECD_SIZE_EX_SHIFT); | |
472 | ||
473 | /* | |
474 | * Added to a constant, "size" becomes the left-shift value | |
475 | * for setting word_size. | |
476 | */ | |
477 | size += NVM_WORD_SIZE_BASE_SHIFT; | |
5c3cad75 | 478 | |
925b11f7 CW |
479 | /* |
480 | * Check for invalid size | |
481 | */ | |
482 | if ((hw->mac.type == e1000_82576) && (size > 15)) { | |
483 | pr_notice("The NVM size is not valid, defaulting to 32K\n"); | |
484 | size = 15; | |
485 | } | |
486 | ||
f96a8a0b CW |
487 | nvm->word_size = 1 << size; |
488 | if (hw->mac.type < e1000_i210) { | |
489 | nvm->opcode_bits = 8; | |
490 | nvm->delay_usec = 1; | |
491 | switch (nvm->override) { | |
492 | case e1000_nvm_override_spi_large: | |
493 | nvm->page_size = 32; | |
494 | nvm->address_bits = 16; | |
495 | break; | |
496 | case e1000_nvm_override_spi_small: | |
497 | nvm->page_size = 8; | |
498 | nvm->address_bits = 8; | |
499 | break; | |
500 | default: | |
501 | nvm->page_size = eecd | |
502 | & E1000_EECD_ADDR_BITS ? 32 : 8; | |
503 | nvm->address_bits = eecd | |
504 | & E1000_EECD_ADDR_BITS ? 16 : 8; | |
505 | break; | |
506 | } | |
507 | if (nvm->word_size == (1 << 15)) | |
508 | nvm->page_size = 128; | |
509 | ||
510 | nvm->type = e1000_nvm_eeprom_spi; | |
511 | } else | |
512 | nvm->type = e1000_nvm_flash_hw; | |
513 | ||
4322e561 | 514 | /* NVM Function Pointers */ |
4322e561 CW |
515 | switch (hw->mac.type) { |
516 | case e1000_82580: | |
517 | nvm->ops.validate = igb_validate_nvm_checksum_82580; | |
518 | nvm->ops.update = igb_update_nvm_checksum_82580; | |
f96a8a0b CW |
519 | nvm->ops.acquire = igb_acquire_nvm_82575; |
520 | nvm->ops.release = igb_release_nvm_82575; | |
521 | if (nvm->word_size < (1 << 15)) | |
522 | nvm->ops.read = igb_read_nvm_eerd; | |
523 | else | |
524 | nvm->ops.read = igb_read_nvm_spi; | |
525 | nvm->ops.write = igb_write_nvm_spi; | |
4322e561 CW |
526 | break; |
527 | case e1000_i350: | |
528 | nvm->ops.validate = igb_validate_nvm_checksum_i350; | |
529 | nvm->ops.update = igb_update_nvm_checksum_i350; | |
f96a8a0b CW |
530 | nvm->ops.acquire = igb_acquire_nvm_82575; |
531 | nvm->ops.release = igb_release_nvm_82575; | |
532 | if (nvm->word_size < (1 << 15)) | |
533 | nvm->ops.read = igb_read_nvm_eerd; | |
534 | else | |
535 | nvm->ops.read = igb_read_nvm_spi; | |
536 | nvm->ops.write = igb_write_nvm_spi; | |
537 | break; | |
538 | case e1000_i210: | |
539 | nvm->ops.validate = igb_validate_nvm_checksum_i210; | |
540 | nvm->ops.update = igb_update_nvm_checksum_i210; | |
541 | nvm->ops.acquire = igb_acquire_nvm_i210; | |
542 | nvm->ops.release = igb_release_nvm_i210; | |
543 | nvm->ops.read = igb_read_nvm_srrd_i210; | |
ede4126e | 544 | nvm->ops.write = igb_write_nvm_srwr_i210; |
f96a8a0b CW |
545 | nvm->ops.valid_led_default = igb_valid_led_default_i210; |
546 | break; | |
547 | case e1000_i211: | |
548 | nvm->ops.acquire = igb_acquire_nvm_i210; | |
549 | nvm->ops.release = igb_release_nvm_i210; | |
550 | nvm->ops.read = igb_read_nvm_i211; | |
551 | nvm->ops.valid_led_default = igb_valid_led_default_i210; | |
552 | nvm->ops.validate = NULL; | |
553 | nvm->ops.update = NULL; | |
554 | nvm->ops.write = NULL; | |
4322e561 CW |
555 | break; |
556 | default: | |
557 | nvm->ops.validate = igb_validate_nvm_checksum; | |
558 | nvm->ops.update = igb_update_nvm_checksum; | |
f96a8a0b CW |
559 | nvm->ops.acquire = igb_acquire_nvm_82575; |
560 | nvm->ops.release = igb_release_nvm_82575; | |
561 | if (nvm->word_size < (1 << 15)) | |
562 | nvm->ops.read = igb_read_nvm_eerd; | |
563 | else | |
564 | nvm->ops.read = igb_read_nvm_spi; | |
565 | nvm->ops.write = igb_write_nvm_spi; | |
566 | break; | |
4322e561 | 567 | } |
9d5c8243 | 568 | |
6b78bb1d CW |
569 | /* if part supports SR-IOV then initialize mailbox parameters */ |
570 | switch (mac->type) { | |
571 | case e1000_82576: | |
572 | case e1000_i350: | |
a0c98605 | 573 | igb_init_mbx_params_pf(hw); |
6b78bb1d CW |
574 | break; |
575 | default: | |
576 | break; | |
577 | } | |
a0c98605 | 578 | |
9d5c8243 AK |
579 | /* setup PHY parameters */ |
580 | if (phy->media_type != e1000_media_type_copper) { | |
581 | phy->type = e1000_phy_none; | |
582 | return 0; | |
583 | } | |
584 | ||
585 | phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT; | |
586 | phy->reset_delay_us = 100; | |
587 | ||
99870a73 AD |
588 | ctrl_ext = rd32(E1000_CTRL_EXT); |
589 | ||
9d5c8243 | 590 | /* PHY function pointers */ |
99870a73 | 591 | if (igb_sgmii_active_82575(hw)) { |
4085f746 | 592 | phy->ops.reset = igb_phy_hw_reset_sgmii_82575; |
99870a73 AD |
593 | ctrl_ext |= E1000_CTRL_I2C_ENA; |
594 | } else { | |
4085f746 | 595 | phy->ops.reset = igb_phy_hw_reset; |
99870a73 AD |
596 | ctrl_ext &= ~E1000_CTRL_I2C_ENA; |
597 | } | |
598 | ||
599 | wr32(E1000_CTRL_EXT, ctrl_ext); | |
600 | igb_reset_mdicnfg_82580(hw); | |
4085f746 NN |
601 | |
602 | if (igb_sgmii_active_82575(hw) && !igb_sgmii_uses_mdio_82575(hw)) { | |
603 | phy->ops.read_reg = igb_read_phy_reg_sgmii_82575; | |
604 | phy->ops.write_reg = igb_write_phy_reg_sgmii_82575; | |
f96a8a0b CW |
605 | } else if ((hw->mac.type == e1000_82580) |
606 | || (hw->mac.type == e1000_i350)) { | |
4085f746 NN |
607 | phy->ops.read_reg = igb_read_phy_reg_82580; |
608 | phy->ops.write_reg = igb_write_phy_reg_82580; | |
f96a8a0b CW |
609 | } else if (hw->phy.type >= e1000_phy_i210) { |
610 | phy->ops.read_reg = igb_read_phy_reg_gs40g; | |
611 | phy->ops.write_reg = igb_write_phy_reg_gs40g; | |
9d5c8243 | 612 | } else { |
4085f746 NN |
613 | phy->ops.read_reg = igb_read_phy_reg_igp; |
614 | phy->ops.write_reg = igb_write_phy_reg_igp; | |
9d5c8243 AK |
615 | } |
616 | ||
19e588e7 AD |
617 | /* set lan id */ |
618 | hw->bus.func = (rd32(E1000_STATUS) & E1000_STATUS_FUNC_MASK) >> | |
619 | E1000_STATUS_FUNC_SHIFT; | |
620 | ||
9d5c8243 AK |
621 | /* Set phy->phy_addr and phy->id. */ |
622 | ret_val = igb_get_phy_id_82575(hw); | |
623 | if (ret_val) | |
624 | return ret_val; | |
625 | ||
626 | /* Verify phy id and set remaining function pointers */ | |
627 | switch (phy->id) { | |
308fb39a JG |
628 | case I347AT4_E_PHY_ID: |
629 | case M88E1112_E_PHY_ID: | |
9d5c8243 AK |
630 | case M88E1111_I_PHY_ID: |
631 | phy->type = e1000_phy_m88; | |
632 | phy->ops.get_phy_info = igb_get_phy_info_m88; | |
308fb39a JG |
633 | |
634 | if (phy->id == I347AT4_E_PHY_ID || | |
635 | phy->id == M88E1112_E_PHY_ID) | |
636 | phy->ops.get_cable_length = igb_get_cable_length_m88_gen2; | |
637 | else | |
638 | phy->ops.get_cable_length = igb_get_cable_length_m88; | |
639 | ||
f96a8a0b CW |
640 | if (phy->id == I210_I_PHY_ID) { |
641 | phy->ops.get_cable_length = | |
642 | igb_get_cable_length_m88_gen2; | |
643 | phy->ops.set_d0_lplu_state = | |
644 | igb_set_d0_lplu_state_82580; | |
645 | phy->ops.set_d3_lplu_state = | |
646 | igb_set_d3_lplu_state_82580; | |
647 | } | |
9d5c8243 AK |
648 | phy->ops.force_speed_duplex = igb_phy_force_speed_duplex_m88; |
649 | break; | |
650 | case IGP03E1000_E_PHY_ID: | |
651 | phy->type = e1000_phy_igp_3; | |
652 | phy->ops.get_phy_info = igb_get_phy_info_igp; | |
653 | phy->ops.get_cable_length = igb_get_cable_length_igp_2; | |
654 | phy->ops.force_speed_duplex = igb_phy_force_speed_duplex_igp; | |
655 | phy->ops.set_d0_lplu_state = igb_set_d0_lplu_state_82575; | |
656 | phy->ops.set_d3_lplu_state = igb_set_d3_lplu_state; | |
657 | break; | |
bb2ac47b | 658 | case I82580_I_PHY_ID: |
d2ba2ed8 | 659 | case I350_I_PHY_ID: |
bb2ac47b AD |
660 | phy->type = e1000_phy_82580; |
661 | phy->ops.force_speed_duplex = igb_phy_force_speed_duplex_82580; | |
662 | phy->ops.get_cable_length = igb_get_cable_length_82580; | |
663 | phy->ops.get_phy_info = igb_get_phy_info_82580; | |
da02cde1 CW |
664 | phy->ops.set_d0_lplu_state = igb_set_d0_lplu_state_82580; |
665 | phy->ops.set_d3_lplu_state = igb_set_d3_lplu_state_82580; | |
bb2ac47b | 666 | break; |
f96a8a0b CW |
667 | case I210_I_PHY_ID: |
668 | phy->type = e1000_phy_i210; | |
669 | phy->ops.get_phy_info = igb_get_phy_info_m88; | |
670 | phy->ops.check_polarity = igb_check_polarity_m88; | |
671 | phy->ops.get_cable_length = igb_get_cable_length_m88_gen2; | |
672 | phy->ops.set_d0_lplu_state = igb_set_d0_lplu_state_82580; | |
673 | phy->ops.set_d3_lplu_state = igb_set_d3_lplu_state_82580; | |
674 | phy->ops.force_speed_duplex = igb_phy_force_speed_duplex_m88; | |
675 | break; | |
9d5c8243 AK |
676 | default: |
677 | return -E1000_ERR_PHY; | |
678 | } | |
679 | ||
680 | return 0; | |
681 | } | |
682 | ||
683 | /** | |
733596be | 684 | * igb_acquire_phy_82575 - Acquire rights to access PHY |
9d5c8243 AK |
685 | * @hw: pointer to the HW structure |
686 | * | |
687 | * Acquire access rights to the correct PHY. This is a | |
688 | * function pointer entry point called by the api module. | |
689 | **/ | |
690 | static s32 igb_acquire_phy_82575(struct e1000_hw *hw) | |
691 | { | |
008c3422 | 692 | u16 mask = E1000_SWFW_PHY0_SM; |
9d5c8243 | 693 | |
008c3422 AD |
694 | if (hw->bus.func == E1000_FUNC_1) |
695 | mask = E1000_SWFW_PHY1_SM; | |
ede3ef0d NN |
696 | else if (hw->bus.func == E1000_FUNC_2) |
697 | mask = E1000_SWFW_PHY2_SM; | |
698 | else if (hw->bus.func == E1000_FUNC_3) | |
699 | mask = E1000_SWFW_PHY3_SM; | |
9d5c8243 | 700 | |
f96a8a0b | 701 | return hw->mac.ops.acquire_swfw_sync(hw, mask); |
9d5c8243 AK |
702 | } |
703 | ||
704 | /** | |
733596be | 705 | * igb_release_phy_82575 - Release rights to access PHY |
9d5c8243 AK |
706 | * @hw: pointer to the HW structure |
707 | * | |
708 | * A wrapper to release access rights to the correct PHY. This is a | |
709 | * function pointer entry point called by the api module. | |
710 | **/ | |
711 | static void igb_release_phy_82575(struct e1000_hw *hw) | |
712 | { | |
008c3422 AD |
713 | u16 mask = E1000_SWFW_PHY0_SM; |
714 | ||
715 | if (hw->bus.func == E1000_FUNC_1) | |
716 | mask = E1000_SWFW_PHY1_SM; | |
ede3ef0d NN |
717 | else if (hw->bus.func == E1000_FUNC_2) |
718 | mask = E1000_SWFW_PHY2_SM; | |
719 | else if (hw->bus.func == E1000_FUNC_3) | |
720 | mask = E1000_SWFW_PHY3_SM; | |
9d5c8243 | 721 | |
f96a8a0b | 722 | hw->mac.ops.release_swfw_sync(hw, mask); |
9d5c8243 AK |
723 | } |
724 | ||
725 | /** | |
733596be | 726 | * igb_read_phy_reg_sgmii_82575 - Read PHY register using sgmii |
9d5c8243 AK |
727 | * @hw: pointer to the HW structure |
728 | * @offset: register offset to be read | |
729 | * @data: pointer to the read data | |
730 | * | |
731 | * Reads the PHY register at offset using the serial gigabit media independent | |
732 | * interface and stores the retrieved information in data. | |
733 | **/ | |
734 | static s32 igb_read_phy_reg_sgmii_82575(struct e1000_hw *hw, u32 offset, | |
735 | u16 *data) | |
736 | { | |
bf6f7a92 | 737 | s32 ret_val = -E1000_ERR_PARAM; |
9d5c8243 AK |
738 | |
739 | if (offset > E1000_MAX_SGMII_PHY_REG_ADDR) { | |
652fff32 | 740 | hw_dbg("PHY Address %u is out of range\n", offset); |
bf6f7a92 | 741 | goto out; |
9d5c8243 AK |
742 | } |
743 | ||
bf6f7a92 AD |
744 | ret_val = hw->phy.ops.acquire(hw); |
745 | if (ret_val) | |
746 | goto out; | |
9d5c8243 | 747 | |
bf6f7a92 | 748 | ret_val = igb_read_phy_reg_i2c(hw, offset, data); |
9d5c8243 | 749 | |
bf6f7a92 AD |
750 | hw->phy.ops.release(hw); |
751 | ||
752 | out: | |
753 | return ret_val; | |
9d5c8243 AK |
754 | } |
755 | ||
756 | /** | |
733596be | 757 | * igb_write_phy_reg_sgmii_82575 - Write PHY register using sgmii |
9d5c8243 AK |
758 | * @hw: pointer to the HW structure |
759 | * @offset: register offset to write to | |
760 | * @data: data to write at register offset | |
761 | * | |
762 | * Writes the data to PHY register at the offset using the serial gigabit | |
763 | * media independent interface. | |
764 | **/ | |
765 | static s32 igb_write_phy_reg_sgmii_82575(struct e1000_hw *hw, u32 offset, | |
766 | u16 data) | |
767 | { | |
bf6f7a92 AD |
768 | s32 ret_val = -E1000_ERR_PARAM; |
769 | ||
9d5c8243 AK |
770 | |
771 | if (offset > E1000_MAX_SGMII_PHY_REG_ADDR) { | |
652fff32 | 772 | hw_dbg("PHY Address %d is out of range\n", offset); |
bf6f7a92 | 773 | goto out; |
9d5c8243 AK |
774 | } |
775 | ||
bf6f7a92 AD |
776 | ret_val = hw->phy.ops.acquire(hw); |
777 | if (ret_val) | |
778 | goto out; | |
9d5c8243 | 779 | |
bf6f7a92 | 780 | ret_val = igb_write_phy_reg_i2c(hw, offset, data); |
9d5c8243 | 781 | |
bf6f7a92 AD |
782 | hw->phy.ops.release(hw); |
783 | ||
784 | out: | |
785 | return ret_val; | |
9d5c8243 AK |
786 | } |
787 | ||
788 | /** | |
733596be | 789 | * igb_get_phy_id_82575 - Retrieve PHY addr and id |
9d5c8243 AK |
790 | * @hw: pointer to the HW structure |
791 | * | |
652fff32 | 792 | * Retrieves the PHY address and ID for both PHY's which do and do not use |
9d5c8243 AK |
793 | * sgmi interface. |
794 | **/ | |
795 | static s32 igb_get_phy_id_82575(struct e1000_hw *hw) | |
796 | { | |
797 | struct e1000_phy_info *phy = &hw->phy; | |
798 | s32 ret_val = 0; | |
799 | u16 phy_id; | |
2fb02a26 | 800 | u32 ctrl_ext; |
4085f746 | 801 | u32 mdic; |
9d5c8243 AK |
802 | |
803 | /* | |
804 | * For SGMII PHYs, we try the list of possible addresses until | |
805 | * we find one that works. For non-SGMII PHYs | |
806 | * (e.g. integrated copper PHYs), an address of 1 should | |
807 | * work. The result of this function should mean phy->phy_addr | |
808 | * and phy->id are set correctly. | |
809 | */ | |
810 | if (!(igb_sgmii_active_82575(hw))) { | |
811 | phy->addr = 1; | |
812 | ret_val = igb_get_phy_id(hw); | |
813 | goto out; | |
814 | } | |
815 | ||
4085f746 NN |
816 | if (igb_sgmii_uses_mdio_82575(hw)) { |
817 | switch (hw->mac.type) { | |
818 | case e1000_82575: | |
819 | case e1000_82576: | |
820 | mdic = rd32(E1000_MDIC); | |
821 | mdic &= E1000_MDIC_PHY_MASK; | |
822 | phy->addr = mdic >> E1000_MDIC_PHY_SHIFT; | |
823 | break; | |
824 | case e1000_82580: | |
825 | case e1000_i350: | |
f96a8a0b CW |
826 | case e1000_i210: |
827 | case e1000_i211: | |
4085f746 NN |
828 | mdic = rd32(E1000_MDICNFG); |
829 | mdic &= E1000_MDICNFG_PHY_MASK; | |
830 | phy->addr = mdic >> E1000_MDICNFG_PHY_SHIFT; | |
831 | break; | |
832 | default: | |
833 | ret_val = -E1000_ERR_PHY; | |
834 | goto out; | |
835 | break; | |
836 | } | |
837 | ret_val = igb_get_phy_id(hw); | |
838 | goto out; | |
839 | } | |
840 | ||
2fb02a26 AD |
841 | /* Power on sgmii phy if it is disabled */ |
842 | ctrl_ext = rd32(E1000_CTRL_EXT); | |
843 | wr32(E1000_CTRL_EXT, ctrl_ext & ~E1000_CTRL_EXT_SDP3_DATA); | |
844 | wrfl(); | |
845 | msleep(300); | |
846 | ||
9d5c8243 AK |
847 | /* |
848 | * The address field in the I2CCMD register is 3 bits and 0 is invalid. | |
849 | * Therefore, we need to test 1-7 | |
850 | */ | |
851 | for (phy->addr = 1; phy->addr < 8; phy->addr++) { | |
852 | ret_val = igb_read_phy_reg_sgmii_82575(hw, PHY_ID1, &phy_id); | |
853 | if (ret_val == 0) { | |
652fff32 AK |
854 | hw_dbg("Vendor ID 0x%08X read at address %u\n", |
855 | phy_id, phy->addr); | |
9d5c8243 AK |
856 | /* |
857 | * At the time of this writing, The M88 part is | |
858 | * the only supported SGMII PHY product. | |
859 | */ | |
860 | if (phy_id == M88_VENDOR) | |
861 | break; | |
862 | } else { | |
652fff32 | 863 | hw_dbg("PHY address %u was unreadable\n", phy->addr); |
9d5c8243 AK |
864 | } |
865 | } | |
866 | ||
867 | /* A valid PHY type couldn't be found. */ | |
868 | if (phy->addr == 8) { | |
869 | phy->addr = 0; | |
870 | ret_val = -E1000_ERR_PHY; | |
871 | goto out; | |
2fb02a26 AD |
872 | } else { |
873 | ret_val = igb_get_phy_id(hw); | |
9d5c8243 AK |
874 | } |
875 | ||
2fb02a26 AD |
876 | /* restore previous sfp cage power state */ |
877 | wr32(E1000_CTRL_EXT, ctrl_ext); | |
9d5c8243 AK |
878 | |
879 | out: | |
880 | return ret_val; | |
881 | } | |
882 | ||
883 | /** | |
733596be | 884 | * igb_phy_hw_reset_sgmii_82575 - Performs a PHY reset |
9d5c8243 AK |
885 | * @hw: pointer to the HW structure |
886 | * | |
887 | * Resets the PHY using the serial gigabit media independent interface. | |
888 | **/ | |
889 | static s32 igb_phy_hw_reset_sgmii_82575(struct e1000_hw *hw) | |
890 | { | |
891 | s32 ret_val; | |
892 | ||
893 | /* | |
894 | * This isn't a true "hard" reset, but is the only reset | |
895 | * available to us at this time. | |
896 | */ | |
897 | ||
652fff32 | 898 | hw_dbg("Soft resetting SGMII attached PHY...\n"); |
9d5c8243 AK |
899 | |
900 | /* | |
901 | * SFP documentation requires the following to configure the SPF module | |
902 | * to work on SGMII. No further documentation is given. | |
903 | */ | |
a8d2a0c2 | 904 | ret_val = hw->phy.ops.write_reg(hw, 0x1B, 0x8084); |
9d5c8243 AK |
905 | if (ret_val) |
906 | goto out; | |
907 | ||
908 | ret_val = igb_phy_sw_reset(hw); | |
909 | ||
910 | out: | |
911 | return ret_val; | |
912 | } | |
913 | ||
914 | /** | |
733596be | 915 | * igb_set_d0_lplu_state_82575 - Set Low Power Linkup D0 state |
9d5c8243 AK |
916 | * @hw: pointer to the HW structure |
917 | * @active: true to enable LPLU, false to disable | |
918 | * | |
919 | * Sets the LPLU D0 state according to the active flag. When | |
920 | * activating LPLU this function also disables smart speed | |
921 | * and vice versa. LPLU will not be activated unless the | |
922 | * device autonegotiation advertisement meets standards of | |
923 | * either 10 or 10/100 or 10/100/1000 at all duplexes. | |
924 | * This is a function pointer entry point only called by | |
925 | * PHY setup routines. | |
926 | **/ | |
927 | static s32 igb_set_d0_lplu_state_82575(struct e1000_hw *hw, bool active) | |
928 | { | |
929 | struct e1000_phy_info *phy = &hw->phy; | |
930 | s32 ret_val; | |
931 | u16 data; | |
932 | ||
a8d2a0c2 | 933 | ret_val = phy->ops.read_reg(hw, IGP02E1000_PHY_POWER_MGMT, &data); |
9d5c8243 AK |
934 | if (ret_val) |
935 | goto out; | |
936 | ||
937 | if (active) { | |
938 | data |= IGP02E1000_PM_D0_LPLU; | |
a8d2a0c2 | 939 | ret_val = phy->ops.write_reg(hw, IGP02E1000_PHY_POWER_MGMT, |
652fff32 | 940 | data); |
9d5c8243 AK |
941 | if (ret_val) |
942 | goto out; | |
943 | ||
944 | /* When LPLU is enabled, we should disable SmartSpeed */ | |
a8d2a0c2 | 945 | ret_val = phy->ops.read_reg(hw, IGP01E1000_PHY_PORT_CONFIG, |
652fff32 | 946 | &data); |
9d5c8243 | 947 | data &= ~IGP01E1000_PSCFR_SMART_SPEED; |
a8d2a0c2 | 948 | ret_val = phy->ops.write_reg(hw, IGP01E1000_PHY_PORT_CONFIG, |
652fff32 | 949 | data); |
9d5c8243 AK |
950 | if (ret_val) |
951 | goto out; | |
952 | } else { | |
953 | data &= ~IGP02E1000_PM_D0_LPLU; | |
a8d2a0c2 | 954 | ret_val = phy->ops.write_reg(hw, IGP02E1000_PHY_POWER_MGMT, |
652fff32 | 955 | data); |
9d5c8243 AK |
956 | /* |
957 | * LPLU and SmartSpeed are mutually exclusive. LPLU is used | |
958 | * during Dx states where the power conservation is most | |
959 | * important. During driver activity we should enable | |
960 | * SmartSpeed, so performance is maintained. | |
961 | */ | |
962 | if (phy->smart_speed == e1000_smart_speed_on) { | |
a8d2a0c2 | 963 | ret_val = phy->ops.read_reg(hw, |
652fff32 | 964 | IGP01E1000_PHY_PORT_CONFIG, &data); |
9d5c8243 AK |
965 | if (ret_val) |
966 | goto out; | |
967 | ||
968 | data |= IGP01E1000_PSCFR_SMART_SPEED; | |
a8d2a0c2 | 969 | ret_val = phy->ops.write_reg(hw, |
652fff32 | 970 | IGP01E1000_PHY_PORT_CONFIG, data); |
9d5c8243 AK |
971 | if (ret_val) |
972 | goto out; | |
973 | } else if (phy->smart_speed == e1000_smart_speed_off) { | |
a8d2a0c2 | 974 | ret_val = phy->ops.read_reg(hw, |
652fff32 | 975 | IGP01E1000_PHY_PORT_CONFIG, &data); |
9d5c8243 AK |
976 | if (ret_val) |
977 | goto out; | |
978 | ||
979 | data &= ~IGP01E1000_PSCFR_SMART_SPEED; | |
a8d2a0c2 | 980 | ret_val = phy->ops.write_reg(hw, |
652fff32 | 981 | IGP01E1000_PHY_PORT_CONFIG, data); |
9d5c8243 AK |
982 | if (ret_val) |
983 | goto out; | |
984 | } | |
985 | } | |
986 | ||
987 | out: | |
988 | return ret_val; | |
989 | } | |
990 | ||
da02cde1 CW |
991 | /** |
992 | * igb_set_d0_lplu_state_82580 - Set Low Power Linkup D0 state | |
993 | * @hw: pointer to the HW structure | |
994 | * @active: true to enable LPLU, false to disable | |
995 | * | |
996 | * Sets the LPLU D0 state according to the active flag. When | |
997 | * activating LPLU this function also disables smart speed | |
998 | * and vice versa. LPLU will not be activated unless the | |
999 | * device autonegotiation advertisement meets standards of | |
1000 | * either 10 or 10/100 or 10/100/1000 at all duplexes. | |
1001 | * This is a function pointer entry point only called by | |
1002 | * PHY setup routines. | |
1003 | **/ | |
1004 | static s32 igb_set_d0_lplu_state_82580(struct e1000_hw *hw, bool active) | |
1005 | { | |
1006 | struct e1000_phy_info *phy = &hw->phy; | |
1007 | s32 ret_val = 0; | |
1008 | u16 data; | |
1009 | ||
1010 | data = rd32(E1000_82580_PHY_POWER_MGMT); | |
1011 | ||
1012 | if (active) { | |
1013 | data |= E1000_82580_PM_D0_LPLU; | |
1014 | ||
1015 | /* When LPLU is enabled, we should disable SmartSpeed */ | |
1016 | data &= ~E1000_82580_PM_SPD; | |
1017 | } else { | |
1018 | data &= ~E1000_82580_PM_D0_LPLU; | |
1019 | ||
1020 | /* | |
1021 | * LPLU and SmartSpeed are mutually exclusive. LPLU is used | |
1022 | * during Dx states where the power conservation is most | |
1023 | * important. During driver activity we should enable | |
1024 | * SmartSpeed, so performance is maintained. | |
1025 | */ | |
1026 | if (phy->smart_speed == e1000_smart_speed_on) | |
1027 | data |= E1000_82580_PM_SPD; | |
1028 | else if (phy->smart_speed == e1000_smart_speed_off) | |
1029 | data &= ~E1000_82580_PM_SPD; } | |
1030 | ||
1031 | wr32(E1000_82580_PHY_POWER_MGMT, data); | |
1032 | return ret_val; | |
1033 | } | |
1034 | ||
1035 | /** | |
1036 | * igb_set_d3_lplu_state_82580 - Sets low power link up state for D3 | |
1037 | * @hw: pointer to the HW structure | |
1038 | * @active: boolean used to enable/disable lplu | |
1039 | * | |
1040 | * Success returns 0, Failure returns 1 | |
1041 | * | |
1042 | * The low power link up (lplu) state is set to the power management level D3 | |
1043 | * and SmartSpeed is disabled when active is true, else clear lplu for D3 | |
1044 | * and enable Smartspeed. LPLU and Smartspeed are mutually exclusive. LPLU | |
1045 | * is used during Dx states where the power conservation is most important. | |
1046 | * During driver activity, SmartSpeed should be enabled so performance is | |
1047 | * maintained. | |
1048 | **/ | |
1049 | s32 igb_set_d3_lplu_state_82580(struct e1000_hw *hw, bool active) | |
1050 | { | |
1051 | struct e1000_phy_info *phy = &hw->phy; | |
1052 | s32 ret_val = 0; | |
1053 | u16 data; | |
1054 | ||
1055 | data = rd32(E1000_82580_PHY_POWER_MGMT); | |
1056 | ||
1057 | if (!active) { | |
1058 | data &= ~E1000_82580_PM_D3_LPLU; | |
1059 | /* | |
1060 | * LPLU and SmartSpeed are mutually exclusive. LPLU is used | |
1061 | * during Dx states where the power conservation is most | |
1062 | * important. During driver activity we should enable | |
1063 | * SmartSpeed, so performance is maintained. | |
1064 | */ | |
1065 | if (phy->smart_speed == e1000_smart_speed_on) | |
1066 | data |= E1000_82580_PM_SPD; | |
1067 | else if (phy->smart_speed == e1000_smart_speed_off) | |
1068 | data &= ~E1000_82580_PM_SPD; | |
1069 | } else if ((phy->autoneg_advertised == E1000_ALL_SPEED_DUPLEX) || | |
1070 | (phy->autoneg_advertised == E1000_ALL_NOT_GIG) || | |
1071 | (phy->autoneg_advertised == E1000_ALL_10_SPEED)) { | |
1072 | data |= E1000_82580_PM_D3_LPLU; | |
1073 | /* When LPLU is enabled, we should disable SmartSpeed */ | |
1074 | data &= ~E1000_82580_PM_SPD; | |
1075 | } | |
1076 | ||
1077 | wr32(E1000_82580_PHY_POWER_MGMT, data); | |
1078 | return ret_val; | |
1079 | } | |
1080 | ||
9d5c8243 | 1081 | /** |
733596be | 1082 | * igb_acquire_nvm_82575 - Request for access to EEPROM |
9d5c8243 AK |
1083 | * @hw: pointer to the HW structure |
1084 | * | |
652fff32 | 1085 | * Acquire the necessary semaphores for exclusive access to the EEPROM. |
9d5c8243 AK |
1086 | * Set the EEPROM access request bit and wait for EEPROM access grant bit. |
1087 | * Return successful if access grant bit set, else clear the request for | |
1088 | * EEPROM access and return -E1000_ERR_NVM (-1). | |
1089 | **/ | |
1090 | static s32 igb_acquire_nvm_82575(struct e1000_hw *hw) | |
1091 | { | |
1092 | s32 ret_val; | |
1093 | ||
f96a8a0b | 1094 | ret_val = hw->mac.ops.acquire_swfw_sync(hw, E1000_SWFW_EEP_SM); |
9d5c8243 AK |
1095 | if (ret_val) |
1096 | goto out; | |
1097 | ||
1098 | ret_val = igb_acquire_nvm(hw); | |
1099 | ||
1100 | if (ret_val) | |
f96a8a0b | 1101 | hw->mac.ops.release_swfw_sync(hw, E1000_SWFW_EEP_SM); |
9d5c8243 AK |
1102 | |
1103 | out: | |
1104 | return ret_val; | |
1105 | } | |
1106 | ||
1107 | /** | |
733596be | 1108 | * igb_release_nvm_82575 - Release exclusive access to EEPROM |
9d5c8243 AK |
1109 | * @hw: pointer to the HW structure |
1110 | * | |
1111 | * Stop any current commands to the EEPROM and clear the EEPROM request bit, | |
1112 | * then release the semaphores acquired. | |
1113 | **/ | |
1114 | static void igb_release_nvm_82575(struct e1000_hw *hw) | |
1115 | { | |
1116 | igb_release_nvm(hw); | |
f96a8a0b | 1117 | hw->mac.ops.release_swfw_sync(hw, E1000_SWFW_EEP_SM); |
9d5c8243 AK |
1118 | } |
1119 | ||
1120 | /** | |
733596be | 1121 | * igb_acquire_swfw_sync_82575 - Acquire SW/FW semaphore |
9d5c8243 AK |
1122 | * @hw: pointer to the HW structure |
1123 | * @mask: specifies which semaphore to acquire | |
1124 | * | |
1125 | * Acquire the SW/FW semaphore to access the PHY or NVM. The mask | |
1126 | * will also specify which port we're acquiring the lock for. | |
1127 | **/ | |
1128 | static s32 igb_acquire_swfw_sync_82575(struct e1000_hw *hw, u16 mask) | |
1129 | { | |
1130 | u32 swfw_sync; | |
1131 | u32 swmask = mask; | |
1132 | u32 fwmask = mask << 16; | |
1133 | s32 ret_val = 0; | |
1134 | s32 i = 0, timeout = 200; /* FIXME: find real value to use here */ | |
1135 | ||
1136 | while (i < timeout) { | |
1137 | if (igb_get_hw_semaphore(hw)) { | |
1138 | ret_val = -E1000_ERR_SWFW_SYNC; | |
1139 | goto out; | |
1140 | } | |
1141 | ||
1142 | swfw_sync = rd32(E1000_SW_FW_SYNC); | |
1143 | if (!(swfw_sync & (fwmask | swmask))) | |
1144 | break; | |
1145 | ||
1146 | /* | |
1147 | * Firmware currently using resource (fwmask) | |
1148 | * or other software thread using resource (swmask) | |
1149 | */ | |
1150 | igb_put_hw_semaphore(hw); | |
1151 | mdelay(5); | |
1152 | i++; | |
1153 | } | |
1154 | ||
1155 | if (i == timeout) { | |
652fff32 | 1156 | hw_dbg("Driver can't access resource, SW_FW_SYNC timeout.\n"); |
9d5c8243 AK |
1157 | ret_val = -E1000_ERR_SWFW_SYNC; |
1158 | goto out; | |
1159 | } | |
1160 | ||
1161 | swfw_sync |= swmask; | |
1162 | wr32(E1000_SW_FW_SYNC, swfw_sync); | |
1163 | ||
1164 | igb_put_hw_semaphore(hw); | |
1165 | ||
1166 | out: | |
1167 | return ret_val; | |
1168 | } | |
1169 | ||
1170 | /** | |
733596be | 1171 | * igb_release_swfw_sync_82575 - Release SW/FW semaphore |
9d5c8243 AK |
1172 | * @hw: pointer to the HW structure |
1173 | * @mask: specifies which semaphore to acquire | |
1174 | * | |
1175 | * Release the SW/FW semaphore used to access the PHY or NVM. The mask | |
1176 | * will also specify which port we're releasing the lock for. | |
1177 | **/ | |
1178 | static void igb_release_swfw_sync_82575(struct e1000_hw *hw, u16 mask) | |
1179 | { | |
1180 | u32 swfw_sync; | |
1181 | ||
1182 | while (igb_get_hw_semaphore(hw) != 0); | |
1183 | /* Empty */ | |
1184 | ||
1185 | swfw_sync = rd32(E1000_SW_FW_SYNC); | |
1186 | swfw_sync &= ~mask; | |
1187 | wr32(E1000_SW_FW_SYNC, swfw_sync); | |
1188 | ||
1189 | igb_put_hw_semaphore(hw); | |
1190 | } | |
1191 | ||
1192 | /** | |
733596be | 1193 | * igb_get_cfg_done_82575 - Read config done bit |
9d5c8243 AK |
1194 | * @hw: pointer to the HW structure |
1195 | * | |
1196 | * Read the management control register for the config done bit for | |
1197 | * completion status. NOTE: silicon which is EEPROM-less will fail trying | |
1198 | * to read the config done bit, so an error is *ONLY* logged and returns | |
1199 | * 0. If we were to return with error, EEPROM-less silicon | |
1200 | * would not be able to be reset or change link. | |
1201 | **/ | |
1202 | static s32 igb_get_cfg_done_82575(struct e1000_hw *hw) | |
1203 | { | |
1204 | s32 timeout = PHY_CFG_TIMEOUT; | |
1205 | s32 ret_val = 0; | |
1206 | u32 mask = E1000_NVM_CFG_DONE_PORT_0; | |
1207 | ||
1208 | if (hw->bus.func == 1) | |
1209 | mask = E1000_NVM_CFG_DONE_PORT_1; | |
bb2ac47b AD |
1210 | else if (hw->bus.func == E1000_FUNC_2) |
1211 | mask = E1000_NVM_CFG_DONE_PORT_2; | |
1212 | else if (hw->bus.func == E1000_FUNC_3) | |
1213 | mask = E1000_NVM_CFG_DONE_PORT_3; | |
9d5c8243 AK |
1214 | |
1215 | while (timeout) { | |
1216 | if (rd32(E1000_EEMNGCTL) & mask) | |
1217 | break; | |
1218 | msleep(1); | |
1219 | timeout--; | |
1220 | } | |
1221 | if (!timeout) | |
652fff32 | 1222 | hw_dbg("MNG configuration cycle has not completed.\n"); |
9d5c8243 AK |
1223 | |
1224 | /* If EEPROM is not marked present, init the PHY manually */ | |
1225 | if (((rd32(E1000_EECD) & E1000_EECD_PRES) == 0) && | |
1226 | (hw->phy.type == e1000_phy_igp_3)) | |
1227 | igb_phy_init_script_igp3(hw); | |
1228 | ||
1229 | return ret_val; | |
1230 | } | |
1231 | ||
1232 | /** | |
733596be | 1233 | * igb_check_for_link_82575 - Check for link |
9d5c8243 AK |
1234 | * @hw: pointer to the HW structure |
1235 | * | |
1236 | * If sgmii is enabled, then use the pcs register to determine link, otherwise | |
1237 | * use the generic interface for determining link. | |
1238 | **/ | |
1239 | static s32 igb_check_for_link_82575(struct e1000_hw *hw) | |
1240 | { | |
1241 | s32 ret_val; | |
1242 | u16 speed, duplex; | |
1243 | ||
70d92f86 | 1244 | if (hw->phy.media_type != e1000_media_type_copper) { |
9d5c8243 | 1245 | ret_val = igb_get_pcs_speed_and_duplex_82575(hw, &speed, |
2d064c06 | 1246 | &duplex); |
5d0932a5 AD |
1247 | /* |
1248 | * Use this flag to determine if link needs to be checked or | |
1249 | * not. If we have link clear the flag so that we do not | |
1250 | * continue to check for link. | |
1251 | */ | |
1252 | hw->mac.get_link_status = !hw->mac.serdes_has_link; | |
daf56e40 CW |
1253 | |
1254 | /* Configure Flow Control now that Auto-Neg has completed. | |
1255 | * First, we need to restore the desired flow control | |
1256 | * settings because we may have had to re-autoneg with a | |
1257 | * different link partner. | |
1258 | */ | |
1259 | ret_val = igb_config_fc_after_link_up(hw); | |
1260 | if (ret_val) | |
1261 | hw_dbg("Error configuring flow control\n"); | |
5d0932a5 | 1262 | } else { |
9d5c8243 | 1263 | ret_val = igb_check_for_copper_link(hw); |
5d0932a5 | 1264 | } |
9d5c8243 AK |
1265 | |
1266 | return ret_val; | |
1267 | } | |
70d92f86 | 1268 | |
88a268c1 NN |
1269 | /** |
1270 | * igb_power_up_serdes_link_82575 - Power up the serdes link after shutdown | |
1271 | * @hw: pointer to the HW structure | |
1272 | **/ | |
1273 | void igb_power_up_serdes_link_82575(struct e1000_hw *hw) | |
1274 | { | |
1275 | u32 reg; | |
1276 | ||
1277 | ||
1278 | if ((hw->phy.media_type != e1000_media_type_internal_serdes) && | |
1279 | !igb_sgmii_active_82575(hw)) | |
1280 | return; | |
1281 | ||
1282 | /* Enable PCS to turn on link */ | |
1283 | reg = rd32(E1000_PCS_CFG0); | |
1284 | reg |= E1000_PCS_CFG_PCS_EN; | |
1285 | wr32(E1000_PCS_CFG0, reg); | |
1286 | ||
1287 | /* Power up the laser */ | |
1288 | reg = rd32(E1000_CTRL_EXT); | |
1289 | reg &= ~E1000_CTRL_EXT_SDP3_DATA; | |
1290 | wr32(E1000_CTRL_EXT, reg); | |
1291 | ||
1292 | /* flush the write to verify completion */ | |
1293 | wrfl(); | |
1294 | msleep(1); | |
1295 | } | |
1296 | ||
9d5c8243 | 1297 | /** |
733596be | 1298 | * igb_get_pcs_speed_and_duplex_82575 - Retrieve current speed/duplex |
9d5c8243 AK |
1299 | * @hw: pointer to the HW structure |
1300 | * @speed: stores the current speed | |
1301 | * @duplex: stores the current duplex | |
1302 | * | |
652fff32 | 1303 | * Using the physical coding sub-layer (PCS), retrieve the current speed and |
9d5c8243 AK |
1304 | * duplex, then store the values in the pointers provided. |
1305 | **/ | |
1306 | static s32 igb_get_pcs_speed_and_duplex_82575(struct e1000_hw *hw, u16 *speed, | |
1307 | u16 *duplex) | |
1308 | { | |
1309 | struct e1000_mac_info *mac = &hw->mac; | |
1310 | u32 pcs; | |
1311 | ||
1312 | /* Set up defaults for the return values of this function */ | |
1313 | mac->serdes_has_link = false; | |
1314 | *speed = 0; | |
1315 | *duplex = 0; | |
1316 | ||
1317 | /* | |
1318 | * Read the PCS Status register for link state. For non-copper mode, | |
1319 | * the status register is not accurate. The PCS status register is | |
1320 | * used instead. | |
1321 | */ | |
1322 | pcs = rd32(E1000_PCS_LSTAT); | |
1323 | ||
1324 | /* | |
1325 | * The link up bit determines when link is up on autoneg. The sync ok | |
1326 | * gets set once both sides sync up and agree upon link. Stable link | |
1327 | * can be determined by checking for both link up and link sync ok | |
1328 | */ | |
1329 | if ((pcs & E1000_PCS_LSTS_LINK_OK) && (pcs & E1000_PCS_LSTS_SYNK_OK)) { | |
1330 | mac->serdes_has_link = true; | |
1331 | ||
1332 | /* Detect and store PCS speed */ | |
1333 | if (pcs & E1000_PCS_LSTS_SPEED_1000) { | |
1334 | *speed = SPEED_1000; | |
1335 | } else if (pcs & E1000_PCS_LSTS_SPEED_100) { | |
1336 | *speed = SPEED_100; | |
1337 | } else { | |
1338 | *speed = SPEED_10; | |
1339 | } | |
1340 | ||
1341 | /* Detect and store PCS duplex */ | |
1342 | if (pcs & E1000_PCS_LSTS_DUPLEX_FULL) { | |
1343 | *duplex = FULL_DUPLEX; | |
1344 | } else { | |
1345 | *duplex = HALF_DUPLEX; | |
1346 | } | |
1347 | } | |
1348 | ||
1349 | return 0; | |
1350 | } | |
1351 | ||
2d064c06 | 1352 | /** |
2fb02a26 | 1353 | * igb_shutdown_serdes_link_82575 - Remove link during power down |
9d5c8243 | 1354 | * @hw: pointer to the HW structure |
9d5c8243 | 1355 | * |
2d064c06 AD |
1356 | * In the case of fiber serdes, shut down optics and PCS on driver unload |
1357 | * when management pass thru is not enabled. | |
9d5c8243 | 1358 | **/ |
2fb02a26 | 1359 | void igb_shutdown_serdes_link_82575(struct e1000_hw *hw) |
9d5c8243 | 1360 | { |
2d064c06 AD |
1361 | u32 reg; |
1362 | ||
53c992fa | 1363 | if (hw->phy.media_type != e1000_media_type_internal_serdes && |
2fb02a26 | 1364 | igb_sgmii_active_82575(hw)) |
2d064c06 AD |
1365 | return; |
1366 | ||
53c992fa | 1367 | if (!igb_enable_mng_pass_thru(hw)) { |
2d064c06 AD |
1368 | /* Disable PCS to turn off link */ |
1369 | reg = rd32(E1000_PCS_CFG0); | |
1370 | reg &= ~E1000_PCS_CFG_PCS_EN; | |
1371 | wr32(E1000_PCS_CFG0, reg); | |
1372 | ||
1373 | /* shutdown the laser */ | |
1374 | reg = rd32(E1000_CTRL_EXT); | |
2fb02a26 | 1375 | reg |= E1000_CTRL_EXT_SDP3_DATA; |
2d064c06 AD |
1376 | wr32(E1000_CTRL_EXT, reg); |
1377 | ||
1378 | /* flush the write to verify completion */ | |
1379 | wrfl(); | |
1380 | msleep(1); | |
1381 | } | |
9d5c8243 AK |
1382 | } |
1383 | ||
1384 | /** | |
733596be | 1385 | * igb_reset_hw_82575 - Reset hardware |
9d5c8243 AK |
1386 | * @hw: pointer to the HW structure |
1387 | * | |
1388 | * This resets the hardware into a known state. This is a | |
1389 | * function pointer entry point called by the api module. | |
1390 | **/ | |
1391 | static s32 igb_reset_hw_82575(struct e1000_hw *hw) | |
1392 | { | |
1393 | u32 ctrl, icr; | |
1394 | s32 ret_val; | |
1395 | ||
1396 | /* | |
1397 | * Prevent the PCI-E bus from sticking if there is no TLP connection | |
1398 | * on the last TLP read/write transaction when MAC is reset. | |
1399 | */ | |
1400 | ret_val = igb_disable_pcie_master(hw); | |
1401 | if (ret_val) | |
652fff32 | 1402 | hw_dbg("PCI-E Master disable polling has failed.\n"); |
9d5c8243 | 1403 | |
009bc06e AD |
1404 | /* set the completion timeout for interface */ |
1405 | ret_val = igb_set_pcie_completion_timeout(hw); | |
1406 | if (ret_val) { | |
1407 | hw_dbg("PCI-E Set completion timeout has failed.\n"); | |
1408 | } | |
1409 | ||
652fff32 | 1410 | hw_dbg("Masking off all interrupts\n"); |
9d5c8243 AK |
1411 | wr32(E1000_IMC, 0xffffffff); |
1412 | ||
1413 | wr32(E1000_RCTL, 0); | |
1414 | wr32(E1000_TCTL, E1000_TCTL_PSP); | |
1415 | wrfl(); | |
1416 | ||
1417 | msleep(10); | |
1418 | ||
1419 | ctrl = rd32(E1000_CTRL); | |
1420 | ||
652fff32 | 1421 | hw_dbg("Issuing a global reset to MAC\n"); |
9d5c8243 AK |
1422 | wr32(E1000_CTRL, ctrl | E1000_CTRL_RST); |
1423 | ||
1424 | ret_val = igb_get_auto_rd_done(hw); | |
1425 | if (ret_val) { | |
1426 | /* | |
1427 | * When auto config read does not complete, do not | |
1428 | * return with an error. This can happen in situations | |
1429 | * where there is no eeprom and prevents getting link. | |
1430 | */ | |
652fff32 | 1431 | hw_dbg("Auto Read Done did not complete\n"); |
9d5c8243 AK |
1432 | } |
1433 | ||
1434 | /* If EEPROM is not present, run manual init scripts */ | |
1435 | if ((rd32(E1000_EECD) & E1000_EECD_PRES) == 0) | |
1436 | igb_reset_init_script_82575(hw); | |
1437 | ||
1438 | /* Clear any pending interrupt events. */ | |
1439 | wr32(E1000_IMC, 0xffffffff); | |
1440 | icr = rd32(E1000_ICR); | |
1441 | ||
5ac16659 AD |
1442 | /* Install any alternate MAC address into RAR0 */ |
1443 | ret_val = igb_check_alt_mac_addr(hw); | |
9d5c8243 AK |
1444 | |
1445 | return ret_val; | |
1446 | } | |
1447 | ||
1448 | /** | |
733596be | 1449 | * igb_init_hw_82575 - Initialize hardware |
9d5c8243 AK |
1450 | * @hw: pointer to the HW structure |
1451 | * | |
1452 | * This inits the hardware readying it for operation. | |
1453 | **/ | |
1454 | static s32 igb_init_hw_82575(struct e1000_hw *hw) | |
1455 | { | |
1456 | struct e1000_mac_info *mac = &hw->mac; | |
1457 | s32 ret_val; | |
1458 | u16 i, rar_count = mac->rar_entry_count; | |
1459 | ||
1460 | /* Initialize identification LED */ | |
1461 | ret_val = igb_id_led_init(hw); | |
1462 | if (ret_val) { | |
652fff32 | 1463 | hw_dbg("Error initializing identification LED\n"); |
9d5c8243 AK |
1464 | /* This is not fatal and we should not stop init due to this */ |
1465 | } | |
1466 | ||
1467 | /* Disabling VLAN filtering */ | |
652fff32 | 1468 | hw_dbg("Initializing the IEEE VLAN\n"); |
1128c756 CW |
1469 | if (hw->mac.type == e1000_i350) |
1470 | igb_clear_vfta_i350(hw); | |
1471 | else | |
1472 | igb_clear_vfta(hw); | |
9d5c8243 AK |
1473 | |
1474 | /* Setup the receive address */ | |
5ac16659 AD |
1475 | igb_init_rx_addrs(hw, rar_count); |
1476 | ||
9d5c8243 | 1477 | /* Zero out the Multicast HASH table */ |
652fff32 | 1478 | hw_dbg("Zeroing the MTA\n"); |
9d5c8243 AK |
1479 | for (i = 0; i < mac->mta_reg_count; i++) |
1480 | array_wr32(E1000_MTA, i, 0); | |
1481 | ||
68d480c4 AD |
1482 | /* Zero out the Unicast HASH table */ |
1483 | hw_dbg("Zeroing the UTA\n"); | |
1484 | for (i = 0; i < mac->uta_reg_count; i++) | |
1485 | array_wr32(E1000_UTA, i, 0); | |
1486 | ||
9d5c8243 AK |
1487 | /* Setup link and flow control */ |
1488 | ret_val = igb_setup_link(hw); | |
1489 | ||
1490 | /* | |
1491 | * Clear all of the statistics registers (clear on read). It is | |
1492 | * important that we do this after we have tried to establish link | |
1493 | * because the symbol error count will increment wildly if there | |
1494 | * is no link. | |
1495 | */ | |
1496 | igb_clear_hw_cntrs_82575(hw); | |
9d5c8243 AK |
1497 | return ret_val; |
1498 | } | |
1499 | ||
1500 | /** | |
733596be | 1501 | * igb_setup_copper_link_82575 - Configure copper link settings |
9d5c8243 AK |
1502 | * @hw: pointer to the HW structure |
1503 | * | |
1504 | * Configures the link for auto-neg or forced speed and duplex. Then we check | |
1505 | * for link, once link is established calls to configure collision distance | |
1506 | * and flow control are called. | |
1507 | **/ | |
1508 | static s32 igb_setup_copper_link_82575(struct e1000_hw *hw) | |
1509 | { | |
12645a19 | 1510 | u32 ctrl; |
9d5c8243 | 1511 | s32 ret_val; |
867eb39e | 1512 | u32 phpm_reg; |
9d5c8243 AK |
1513 | |
1514 | ctrl = rd32(E1000_CTRL); | |
1515 | ctrl |= E1000_CTRL_SLU; | |
1516 | ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); | |
1517 | wr32(E1000_CTRL, ctrl); | |
1518 | ||
867eb39e CW |
1519 | /* Clear Go Link Disconnect bit */ |
1520 | if (hw->mac.type >= e1000_82580) { | |
1521 | phpm_reg = rd32(E1000_82580_PHY_POWER_MGMT); | |
1522 | phpm_reg &= ~E1000_82580_PM_GO_LINKD; | |
1523 | wr32(E1000_82580_PHY_POWER_MGMT, phpm_reg); | |
1524 | } | |
1525 | ||
2fb02a26 AD |
1526 | ret_val = igb_setup_serdes_link_82575(hw); |
1527 | if (ret_val) | |
1528 | goto out; | |
1529 | ||
1530 | if (igb_sgmii_active_82575(hw) && !hw->phy.reset_disable) { | |
bb2ac47b AD |
1531 | /* allow time for SFP cage time to power up phy */ |
1532 | msleep(300); | |
1533 | ||
2fb02a26 AD |
1534 | ret_val = hw->phy.ops.reset(hw); |
1535 | if (ret_val) { | |
1536 | hw_dbg("Error resetting the PHY.\n"); | |
1537 | goto out; | |
1538 | } | |
1539 | } | |
9d5c8243 | 1540 | switch (hw->phy.type) { |
f96a8a0b | 1541 | case e1000_phy_i210: |
9d5c8243 | 1542 | case e1000_phy_m88: |
308fb39a JG |
1543 | if (hw->phy.id == I347AT4_E_PHY_ID || |
1544 | hw->phy.id == M88E1112_E_PHY_ID) | |
1545 | ret_val = igb_copper_link_setup_m88_gen2(hw); | |
1546 | else | |
1547 | ret_val = igb_copper_link_setup_m88(hw); | |
9d5c8243 AK |
1548 | break; |
1549 | case e1000_phy_igp_3: | |
1550 | ret_val = igb_copper_link_setup_igp(hw); | |
9d5c8243 | 1551 | break; |
bb2ac47b AD |
1552 | case e1000_phy_82580: |
1553 | ret_val = igb_copper_link_setup_82580(hw); | |
1554 | break; | |
9d5c8243 AK |
1555 | default: |
1556 | ret_val = -E1000_ERR_PHY; | |
1557 | break; | |
1558 | } | |
1559 | ||
1560 | if (ret_val) | |
1561 | goto out; | |
1562 | ||
81fadd81 | 1563 | ret_val = igb_setup_copper_link(hw); |
9d5c8243 AK |
1564 | out: |
1565 | return ret_val; | |
1566 | } | |
1567 | ||
1568 | /** | |
70d92f86 | 1569 | * igb_setup_serdes_link_82575 - Setup link for serdes |
9d5c8243 AK |
1570 | * @hw: pointer to the HW structure |
1571 | * | |
70d92f86 AD |
1572 | * Configure the physical coding sub-layer (PCS) link. The PCS link is |
1573 | * used on copper connections where the serialized gigabit media independent | |
1574 | * interface (sgmii), or serdes fiber is being used. Configures the link | |
1575 | * for auto-negotiation or forces speed/duplex. | |
9d5c8243 | 1576 | **/ |
2fb02a26 | 1577 | static s32 igb_setup_serdes_link_82575(struct e1000_hw *hw) |
9d5c8243 | 1578 | { |
daf56e40 | 1579 | u32 ctrl_ext, ctrl_reg, reg, anadv_reg; |
bb2ac47b | 1580 | bool pcs_autoneg; |
2c670b5b CW |
1581 | s32 ret_val = E1000_SUCCESS; |
1582 | u16 data; | |
2fb02a26 AD |
1583 | |
1584 | if ((hw->phy.media_type != e1000_media_type_internal_serdes) && | |
1585 | !igb_sgmii_active_82575(hw)) | |
2c670b5b CW |
1586 | return ret_val; |
1587 | ||
9d5c8243 AK |
1588 | |
1589 | /* | |
1590 | * On the 82575, SerDes loopback mode persists until it is | |
1591 | * explicitly turned off or a power cycle is performed. A read to | |
1592 | * the register does not indicate its status. Therefore, we ensure | |
1593 | * loopback mode is disabled during initialization. | |
1594 | */ | |
1595 | wr32(E1000_SCTL, E1000_SCTL_DISABLE_SERDES_LOOPBACK); | |
1596 | ||
2fb02a26 | 1597 | /* power on the sfp cage if present */ |
bb2ac47b AD |
1598 | ctrl_ext = rd32(E1000_CTRL_EXT); |
1599 | ctrl_ext &= ~E1000_CTRL_EXT_SDP3_DATA; | |
1600 | wr32(E1000_CTRL_EXT, ctrl_ext); | |
2fb02a26 AD |
1601 | |
1602 | ctrl_reg = rd32(E1000_CTRL); | |
1603 | ctrl_reg |= E1000_CTRL_SLU; | |
1604 | ||
1605 | if (hw->mac.type == e1000_82575 || hw->mac.type == e1000_82576) { | |
1606 | /* set both sw defined pins */ | |
1607 | ctrl_reg |= E1000_CTRL_SWDPIN0 | E1000_CTRL_SWDPIN1; | |
1608 | ||
1609 | /* Set switch control to serdes energy detect */ | |
1610 | reg = rd32(E1000_CONNSW); | |
1611 | reg |= E1000_CONNSW_ENRGSRC; | |
1612 | wr32(E1000_CONNSW, reg); | |
1613 | } | |
1614 | ||
1615 | reg = rd32(E1000_PCS_LCTL); | |
1616 | ||
bb2ac47b AD |
1617 | /* default pcs_autoneg to the same setting as mac autoneg */ |
1618 | pcs_autoneg = hw->mac.autoneg; | |
2fb02a26 | 1619 | |
bb2ac47b AD |
1620 | switch (ctrl_ext & E1000_CTRL_EXT_LINK_MODE_MASK) { |
1621 | case E1000_CTRL_EXT_LINK_MODE_SGMII: | |
1622 | /* sgmii mode lets the phy handle forcing speed/duplex */ | |
1623 | pcs_autoneg = true; | |
1624 | /* autoneg time out should be disabled for SGMII mode */ | |
2fb02a26 | 1625 | reg &= ~(E1000_PCS_LCTL_AN_TIMEOUT); |
bb2ac47b AD |
1626 | break; |
1627 | case E1000_CTRL_EXT_LINK_MODE_1000BASE_KX: | |
1628 | /* disable PCS autoneg and support parallel detect only */ | |
1629 | pcs_autoneg = false; | |
1630 | default: | |
2c670b5b CW |
1631 | if (hw->mac.type == e1000_82575 || |
1632 | hw->mac.type == e1000_82576) { | |
1633 | ret_val = hw->nvm.ops.read(hw, NVM_COMPAT, 1, &data); | |
1634 | if (ret_val) { | |
1635 | printk(KERN_DEBUG "NVM Read Error\n\n"); | |
1636 | return ret_val; | |
1637 | } | |
1638 | ||
1639 | if (data & E1000_EEPROM_PCS_AUTONEG_DISABLE_BIT) | |
1640 | pcs_autoneg = false; | |
1641 | } | |
1642 | ||
bb2ac47b AD |
1643 | /* |
1644 | * non-SGMII modes only supports a speed of 1000/Full for the | |
1645 | * link so it is best to just force the MAC and let the pcs | |
1646 | * link either autoneg or be forced to 1000/Full | |
1647 | */ | |
2fb02a26 AD |
1648 | ctrl_reg |= E1000_CTRL_SPD_1000 | E1000_CTRL_FRCSPD | |
1649 | E1000_CTRL_FD | E1000_CTRL_FRCDPX; | |
bb2ac47b AD |
1650 | |
1651 | /* set speed of 1000/Full if speed/duplex is forced */ | |
1652 | reg |= E1000_PCS_LCTL_FSV_1000 | E1000_PCS_LCTL_FDV_FULL; | |
1653 | break; | |
921aa749 AD |
1654 | } |
1655 | ||
2fb02a26 | 1656 | wr32(E1000_CTRL, ctrl_reg); |
9d5c8243 AK |
1657 | |
1658 | /* | |
1659 | * New SerDes mode allows for forcing speed or autonegotiating speed | |
1660 | * at 1gb. Autoneg should be default set by most drivers. This is the | |
1661 | * mode that will be compatible with older link partners and switches. | |
1662 | * However, both are supported by the hardware and some drivers/tools. | |
1663 | */ | |
9d5c8243 AK |
1664 | reg &= ~(E1000_PCS_LCTL_AN_ENABLE | E1000_PCS_LCTL_FLV_LINK_UP | |
1665 | E1000_PCS_LCTL_FSD | E1000_PCS_LCTL_FORCE_LINK); | |
1666 | ||
bb2ac47b | 1667 | if (pcs_autoneg) { |
9d5c8243 | 1668 | /* Set PCS register for autoneg */ |
bb2ac47b | 1669 | reg |= E1000_PCS_LCTL_AN_ENABLE | /* Enable Autoneg */ |
70d92f86 | 1670 | E1000_PCS_LCTL_AN_RESTART; /* Restart autoneg */ |
daf56e40 CW |
1671 | |
1672 | /* Disable force flow control for autoneg */ | |
1673 | reg &= ~E1000_PCS_LCTL_FORCE_FCTRL; | |
1674 | ||
1675 | /* Configure flow control advertisement for autoneg */ | |
1676 | anadv_reg = rd32(E1000_PCS_ANADV); | |
1677 | anadv_reg &= ~(E1000_TXCW_ASM_DIR | E1000_TXCW_PAUSE); | |
1678 | switch (hw->fc.requested_mode) { | |
1679 | case e1000_fc_full: | |
1680 | case e1000_fc_rx_pause: | |
1681 | anadv_reg |= E1000_TXCW_ASM_DIR; | |
1682 | anadv_reg |= E1000_TXCW_PAUSE; | |
1683 | break; | |
1684 | case e1000_fc_tx_pause: | |
1685 | anadv_reg |= E1000_TXCW_ASM_DIR; | |
1686 | break; | |
1687 | default: | |
1688 | break; | |
1689 | } | |
1690 | wr32(E1000_PCS_ANADV, anadv_reg); | |
1691 | ||
bb2ac47b | 1692 | hw_dbg("Configuring Autoneg:PCS_LCTL=0x%08X\n", reg); |
9d5c8243 | 1693 | } else { |
bb2ac47b | 1694 | /* Set PCS register for forced link */ |
d68caec6 | 1695 | reg |= E1000_PCS_LCTL_FSD; /* Force Speed */ |
bb2ac47b | 1696 | |
daf56e40 CW |
1697 | /* Force flow control for forced link */ |
1698 | reg |= E1000_PCS_LCTL_FORCE_FCTRL; | |
1699 | ||
bb2ac47b | 1700 | hw_dbg("Configuring Forced Link:PCS_LCTL=0x%08X\n", reg); |
9d5c8243 | 1701 | } |
726c09e7 | 1702 | |
9d5c8243 AK |
1703 | wr32(E1000_PCS_LCTL, reg); |
1704 | ||
daf56e40 | 1705 | if (!pcs_autoneg && !igb_sgmii_active_82575(hw)) |
2fb02a26 | 1706 | igb_force_mac_fc(hw); |
9d5c8243 | 1707 | |
2c670b5b | 1708 | return ret_val; |
9d5c8243 AK |
1709 | } |
1710 | ||
1711 | /** | |
733596be | 1712 | * igb_sgmii_active_82575 - Return sgmii state |
9d5c8243 AK |
1713 | * @hw: pointer to the HW structure |
1714 | * | |
1715 | * 82575 silicon has a serialized gigabit media independent interface (sgmii) | |
1716 | * which can be enabled for use in the embedded applications. Simply | |
1717 | * return the current state of the sgmii interface. | |
1718 | **/ | |
1719 | static bool igb_sgmii_active_82575(struct e1000_hw *hw) | |
1720 | { | |
c1889bfe | 1721 | struct e1000_dev_spec_82575 *dev_spec = &hw->dev_spec._82575; |
c1889bfe | 1722 | return dev_spec->sgmii_active; |
9d5c8243 AK |
1723 | } |
1724 | ||
1725 | /** | |
733596be | 1726 | * igb_reset_init_script_82575 - Inits HW defaults after reset |
9d5c8243 AK |
1727 | * @hw: pointer to the HW structure |
1728 | * | |
1729 | * Inits recommended HW defaults after a reset when there is no EEPROM | |
1730 | * detected. This is only for the 82575. | |
1731 | **/ | |
1732 | static s32 igb_reset_init_script_82575(struct e1000_hw *hw) | |
1733 | { | |
1734 | if (hw->mac.type == e1000_82575) { | |
652fff32 | 1735 | hw_dbg("Running reset init script for 82575\n"); |
9d5c8243 AK |
1736 | /* SerDes configuration via SERDESCTRL */ |
1737 | igb_write_8bit_ctrl_reg(hw, E1000_SCTL, 0x00, 0x0C); | |
1738 | igb_write_8bit_ctrl_reg(hw, E1000_SCTL, 0x01, 0x78); | |
1739 | igb_write_8bit_ctrl_reg(hw, E1000_SCTL, 0x1B, 0x23); | |
1740 | igb_write_8bit_ctrl_reg(hw, E1000_SCTL, 0x23, 0x15); | |
1741 | ||
1742 | /* CCM configuration via CCMCTL register */ | |
1743 | igb_write_8bit_ctrl_reg(hw, E1000_CCMCTL, 0x14, 0x00); | |
1744 | igb_write_8bit_ctrl_reg(hw, E1000_CCMCTL, 0x10, 0x00); | |
1745 | ||
1746 | /* PCIe lanes configuration */ | |
1747 | igb_write_8bit_ctrl_reg(hw, E1000_GIOCTL, 0x00, 0xEC); | |
1748 | igb_write_8bit_ctrl_reg(hw, E1000_GIOCTL, 0x61, 0xDF); | |
1749 | igb_write_8bit_ctrl_reg(hw, E1000_GIOCTL, 0x34, 0x05); | |
1750 | igb_write_8bit_ctrl_reg(hw, E1000_GIOCTL, 0x2F, 0x81); | |
1751 | ||
1752 | /* PCIe PLL Configuration */ | |
1753 | igb_write_8bit_ctrl_reg(hw, E1000_SCCTL, 0x02, 0x47); | |
1754 | igb_write_8bit_ctrl_reg(hw, E1000_SCCTL, 0x14, 0x00); | |
1755 | igb_write_8bit_ctrl_reg(hw, E1000_SCCTL, 0x10, 0x00); | |
1756 | } | |
1757 | ||
1758 | return 0; | |
1759 | } | |
1760 | ||
1761 | /** | |
733596be | 1762 | * igb_read_mac_addr_82575 - Read device MAC address |
9d5c8243 AK |
1763 | * @hw: pointer to the HW structure |
1764 | **/ | |
1765 | static s32 igb_read_mac_addr_82575(struct e1000_hw *hw) | |
1766 | { | |
1767 | s32 ret_val = 0; | |
1768 | ||
22896639 AD |
1769 | /* |
1770 | * If there's an alternate MAC address place it in RAR0 | |
1771 | * so that it will override the Si installed default perm | |
1772 | * address. | |
1773 | */ | |
1774 | ret_val = igb_check_alt_mac_addr(hw); | |
1775 | if (ret_val) | |
1776 | goto out; | |
1777 | ||
1778 | ret_val = igb_read_mac_addr(hw); | |
9d5c8243 | 1779 | |
22896639 | 1780 | out: |
9d5c8243 AK |
1781 | return ret_val; |
1782 | } | |
1783 | ||
88a268c1 NN |
1784 | /** |
1785 | * igb_power_down_phy_copper_82575 - Remove link during PHY power down | |
1786 | * @hw: pointer to the HW structure | |
1787 | * | |
1788 | * In the case of a PHY power down to save power, or to turn off link during a | |
1789 | * driver unload, or wake on lan is not enabled, remove the link. | |
1790 | **/ | |
1791 | void igb_power_down_phy_copper_82575(struct e1000_hw *hw) | |
1792 | { | |
1793 | /* If the management interface is not enabled, then power down */ | |
1794 | if (!(igb_enable_mng_pass_thru(hw) || igb_check_reset_block(hw))) | |
1795 | igb_power_down_phy_copper(hw); | |
88a268c1 NN |
1796 | } |
1797 | ||
9d5c8243 | 1798 | /** |
733596be | 1799 | * igb_clear_hw_cntrs_82575 - Clear device specific hardware counters |
9d5c8243 AK |
1800 | * @hw: pointer to the HW structure |
1801 | * | |
1802 | * Clears the hardware counters by reading the counter registers. | |
1803 | **/ | |
1804 | static void igb_clear_hw_cntrs_82575(struct e1000_hw *hw) | |
1805 | { | |
9d5c8243 AK |
1806 | igb_clear_hw_cntrs_base(hw); |
1807 | ||
cc9073bb AD |
1808 | rd32(E1000_PRC64); |
1809 | rd32(E1000_PRC127); | |
1810 | rd32(E1000_PRC255); | |
1811 | rd32(E1000_PRC511); | |
1812 | rd32(E1000_PRC1023); | |
1813 | rd32(E1000_PRC1522); | |
1814 | rd32(E1000_PTC64); | |
1815 | rd32(E1000_PTC127); | |
1816 | rd32(E1000_PTC255); | |
1817 | rd32(E1000_PTC511); | |
1818 | rd32(E1000_PTC1023); | |
1819 | rd32(E1000_PTC1522); | |
1820 | ||
1821 | rd32(E1000_ALGNERRC); | |
1822 | rd32(E1000_RXERRC); | |
1823 | rd32(E1000_TNCRS); | |
1824 | rd32(E1000_CEXTERR); | |
1825 | rd32(E1000_TSCTC); | |
1826 | rd32(E1000_TSCTFC); | |
1827 | ||
1828 | rd32(E1000_MGTPRC); | |
1829 | rd32(E1000_MGTPDC); | |
1830 | rd32(E1000_MGTPTC); | |
1831 | ||
1832 | rd32(E1000_IAC); | |
1833 | rd32(E1000_ICRXOC); | |
1834 | ||
1835 | rd32(E1000_ICRXPTC); | |
1836 | rd32(E1000_ICRXATC); | |
1837 | rd32(E1000_ICTXPTC); | |
1838 | rd32(E1000_ICTXATC); | |
1839 | rd32(E1000_ICTXQEC); | |
1840 | rd32(E1000_ICTXQMTC); | |
1841 | rd32(E1000_ICRXDMTC); | |
1842 | ||
1843 | rd32(E1000_CBTMPC); | |
1844 | rd32(E1000_HTDPMC); | |
1845 | rd32(E1000_CBRMPC); | |
1846 | rd32(E1000_RPTHC); | |
1847 | rd32(E1000_HGPTC); | |
1848 | rd32(E1000_HTCBDPC); | |
1849 | rd32(E1000_HGORCL); | |
1850 | rd32(E1000_HGORCH); | |
1851 | rd32(E1000_HGOTCL); | |
1852 | rd32(E1000_HGOTCH); | |
1853 | rd32(E1000_LENERRS); | |
9d5c8243 AK |
1854 | |
1855 | /* This register should not be read in copper configurations */ | |
2fb02a26 AD |
1856 | if (hw->phy.media_type == e1000_media_type_internal_serdes || |
1857 | igb_sgmii_active_82575(hw)) | |
cc9073bb | 1858 | rd32(E1000_SCVPC); |
9d5c8243 AK |
1859 | } |
1860 | ||
662d7205 AD |
1861 | /** |
1862 | * igb_rx_fifo_flush_82575 - Clean rx fifo after RX enable | |
1863 | * @hw: pointer to the HW structure | |
1864 | * | |
1865 | * After rx enable if managability is enabled then there is likely some | |
1866 | * bad data at the start of the fifo and possibly in the DMA fifo. This | |
1867 | * function clears the fifos and flushes any packets that came in as rx was | |
1868 | * being enabled. | |
1869 | **/ | |
1870 | void igb_rx_fifo_flush_82575(struct e1000_hw *hw) | |
1871 | { | |
1872 | u32 rctl, rlpml, rxdctl[4], rfctl, temp_rctl, rx_enabled; | |
1873 | int i, ms_wait; | |
1874 | ||
1875 | if (hw->mac.type != e1000_82575 || | |
1876 | !(rd32(E1000_MANC) & E1000_MANC_RCV_TCO_EN)) | |
1877 | return; | |
1878 | ||
1879 | /* Disable all RX queues */ | |
1880 | for (i = 0; i < 4; i++) { | |
1881 | rxdctl[i] = rd32(E1000_RXDCTL(i)); | |
1882 | wr32(E1000_RXDCTL(i), | |
1883 | rxdctl[i] & ~E1000_RXDCTL_QUEUE_ENABLE); | |
1884 | } | |
1885 | /* Poll all queues to verify they have shut down */ | |
1886 | for (ms_wait = 0; ms_wait < 10; ms_wait++) { | |
1887 | msleep(1); | |
1888 | rx_enabled = 0; | |
1889 | for (i = 0; i < 4; i++) | |
1890 | rx_enabled |= rd32(E1000_RXDCTL(i)); | |
1891 | if (!(rx_enabled & E1000_RXDCTL_QUEUE_ENABLE)) | |
1892 | break; | |
1893 | } | |
1894 | ||
1895 | if (ms_wait == 10) | |
1896 | hw_dbg("Queue disable timed out after 10ms\n"); | |
1897 | ||
1898 | /* Clear RLPML, RCTL.SBP, RFCTL.LEF, and set RCTL.LPE so that all | |
1899 | * incoming packets are rejected. Set enable and wait 2ms so that | |
1900 | * any packet that was coming in as RCTL.EN was set is flushed | |
1901 | */ | |
1902 | rfctl = rd32(E1000_RFCTL); | |
1903 | wr32(E1000_RFCTL, rfctl & ~E1000_RFCTL_LEF); | |
1904 | ||
1905 | rlpml = rd32(E1000_RLPML); | |
1906 | wr32(E1000_RLPML, 0); | |
1907 | ||
1908 | rctl = rd32(E1000_RCTL); | |
1909 | temp_rctl = rctl & ~(E1000_RCTL_EN | E1000_RCTL_SBP); | |
1910 | temp_rctl |= E1000_RCTL_LPE; | |
1911 | ||
1912 | wr32(E1000_RCTL, temp_rctl); | |
1913 | wr32(E1000_RCTL, temp_rctl | E1000_RCTL_EN); | |
1914 | wrfl(); | |
1915 | msleep(2); | |
1916 | ||
1917 | /* Enable RX queues that were previously enabled and restore our | |
1918 | * previous state | |
1919 | */ | |
1920 | for (i = 0; i < 4; i++) | |
1921 | wr32(E1000_RXDCTL(i), rxdctl[i]); | |
1922 | wr32(E1000_RCTL, rctl); | |
1923 | wrfl(); | |
1924 | ||
1925 | wr32(E1000_RLPML, rlpml); | |
1926 | wr32(E1000_RFCTL, rfctl); | |
1927 | ||
1928 | /* Flush receive errors generated by workaround */ | |
1929 | rd32(E1000_ROC); | |
1930 | rd32(E1000_RNBC); | |
1931 | rd32(E1000_MPC); | |
1932 | } | |
1933 | ||
009bc06e AD |
1934 | /** |
1935 | * igb_set_pcie_completion_timeout - set pci-e completion timeout | |
1936 | * @hw: pointer to the HW structure | |
1937 | * | |
1938 | * The defaults for 82575 and 82576 should be in the range of 50us to 50ms, | |
1939 | * however the hardware default for these parts is 500us to 1ms which is less | |
1940 | * than the 10ms recommended by the pci-e spec. To address this we need to | |
1941 | * increase the value to either 10ms to 200ms for capability version 1 config, | |
1942 | * or 16ms to 55ms for version 2. | |
1943 | **/ | |
1944 | static s32 igb_set_pcie_completion_timeout(struct e1000_hw *hw) | |
1945 | { | |
1946 | u32 gcr = rd32(E1000_GCR); | |
1947 | s32 ret_val = 0; | |
1948 | u16 pcie_devctl2; | |
1949 | ||
1950 | /* only take action if timeout value is defaulted to 0 */ | |
1951 | if (gcr & E1000_GCR_CMPL_TMOUT_MASK) | |
1952 | goto out; | |
1953 | ||
1954 | /* | |
1955 | * if capababilities version is type 1 we can write the | |
1956 | * timeout of 10ms to 200ms through the GCR register | |
1957 | */ | |
1958 | if (!(gcr & E1000_GCR_CAP_VER2)) { | |
1959 | gcr |= E1000_GCR_CMPL_TMOUT_10ms; | |
1960 | goto out; | |
1961 | } | |
1962 | ||
1963 | /* | |
1964 | * for version 2 capabilities we need to write the config space | |
1965 | * directly in order to set the completion timeout value for | |
1966 | * 16ms to 55ms | |
1967 | */ | |
1968 | ret_val = igb_read_pcie_cap_reg(hw, PCIE_DEVICE_CONTROL2, | |
1969 | &pcie_devctl2); | |
1970 | if (ret_val) | |
1971 | goto out; | |
1972 | ||
1973 | pcie_devctl2 |= PCIE_DEVICE_CONTROL2_16ms; | |
1974 | ||
1975 | ret_val = igb_write_pcie_cap_reg(hw, PCIE_DEVICE_CONTROL2, | |
1976 | &pcie_devctl2); | |
1977 | out: | |
1978 | /* disable completion timeout resend */ | |
1979 | gcr &= ~E1000_GCR_CMPL_TMOUT_RESEND; | |
1980 | ||
1981 | wr32(E1000_GCR, gcr); | |
1982 | return ret_val; | |
1983 | } | |
1984 | ||
13800469 GR |
1985 | /** |
1986 | * igb_vmdq_set_anti_spoofing_pf - enable or disable anti-spoofing | |
1987 | * @hw: pointer to the hardware struct | |
1988 | * @enable: state to enter, either enabled or disabled | |
1989 | * @pf: Physical Function pool - do not set anti-spoofing for the PF | |
1990 | * | |
1991 | * enables/disables L2 switch anti-spoofing functionality. | |
1992 | **/ | |
1993 | void igb_vmdq_set_anti_spoofing_pf(struct e1000_hw *hw, bool enable, int pf) | |
1994 | { | |
1995 | u32 dtxswc; | |
1996 | ||
1997 | switch (hw->mac.type) { | |
1998 | case e1000_82576: | |
1999 | case e1000_i350: | |
2000 | dtxswc = rd32(E1000_DTXSWC); | |
2001 | if (enable) { | |
2002 | dtxswc |= (E1000_DTXSWC_MAC_SPOOF_MASK | | |
2003 | E1000_DTXSWC_VLAN_SPOOF_MASK); | |
2004 | /* The PF can spoof - it has to in order to | |
2005 | * support emulation mode NICs */ | |
2006 | dtxswc ^= (1 << pf | 1 << (pf + MAX_NUM_VFS)); | |
2007 | } else { | |
2008 | dtxswc &= ~(E1000_DTXSWC_MAC_SPOOF_MASK | | |
2009 | E1000_DTXSWC_VLAN_SPOOF_MASK); | |
2010 | } | |
2011 | wr32(E1000_DTXSWC, dtxswc); | |
2012 | break; | |
2013 | default: | |
2014 | break; | |
2015 | } | |
2016 | } | |
2017 | ||
4ae196df AD |
2018 | /** |
2019 | * igb_vmdq_set_loopback_pf - enable or disable vmdq loopback | |
2020 | * @hw: pointer to the hardware struct | |
2021 | * @enable: state to enter, either enabled or disabled | |
2022 | * | |
2023 | * enables/disables L2 switch loopback functionality. | |
2024 | **/ | |
2025 | void igb_vmdq_set_loopback_pf(struct e1000_hw *hw, bool enable) | |
2026 | { | |
ca2e3e7e AA |
2027 | u32 dtxswc; |
2028 | ||
2029 | switch (hw->mac.type) { | |
2030 | case e1000_82576: | |
2031 | dtxswc = rd32(E1000_DTXSWC); | |
2032 | if (enable) | |
2033 | dtxswc |= E1000_DTXSWC_VMDQ_LOOPBACK_EN; | |
2034 | else | |
2035 | dtxswc &= ~E1000_DTXSWC_VMDQ_LOOPBACK_EN; | |
2036 | wr32(E1000_DTXSWC, dtxswc); | |
2037 | break; | |
2038 | case e1000_i350: | |
2039 | dtxswc = rd32(E1000_TXSWC); | |
2040 | if (enable) | |
2041 | dtxswc |= E1000_DTXSWC_VMDQ_LOOPBACK_EN; | |
2042 | else | |
2043 | dtxswc &= ~E1000_DTXSWC_VMDQ_LOOPBACK_EN; | |
2044 | wr32(E1000_TXSWC, dtxswc); | |
2045 | break; | |
2046 | default: | |
2047 | /* Currently no other hardware supports loopback */ | |
2048 | break; | |
2049 | } | |
4ae196df | 2050 | |
4ae196df | 2051 | |
4ae196df AD |
2052 | } |
2053 | ||
2054 | /** | |
2055 | * igb_vmdq_set_replication_pf - enable or disable vmdq replication | |
2056 | * @hw: pointer to the hardware struct | |
2057 | * @enable: state to enter, either enabled or disabled | |
2058 | * | |
2059 | * enables/disables replication of packets across multiple pools. | |
2060 | **/ | |
2061 | void igb_vmdq_set_replication_pf(struct e1000_hw *hw, bool enable) | |
2062 | { | |
2063 | u32 vt_ctl = rd32(E1000_VT_CTL); | |
2064 | ||
2065 | if (enable) | |
2066 | vt_ctl |= E1000_VT_CTL_VM_REPL_EN; | |
2067 | else | |
2068 | vt_ctl &= ~E1000_VT_CTL_VM_REPL_EN; | |
2069 | ||
2070 | wr32(E1000_VT_CTL, vt_ctl); | |
2071 | } | |
2072 | ||
bb2ac47b AD |
2073 | /** |
2074 | * igb_read_phy_reg_82580 - Read 82580 MDI control register | |
2075 | * @hw: pointer to the HW structure | |
2076 | * @offset: register offset to be read | |
2077 | * @data: pointer to the read data | |
2078 | * | |
2079 | * Reads the MDI control register in the PHY at offset and stores the | |
2080 | * information read to data. | |
2081 | **/ | |
2082 | static s32 igb_read_phy_reg_82580(struct e1000_hw *hw, u32 offset, u16 *data) | |
2083 | { | |
bb2ac47b AD |
2084 | s32 ret_val; |
2085 | ||
2086 | ||
2087 | ret_val = hw->phy.ops.acquire(hw); | |
2088 | if (ret_val) | |
2089 | goto out; | |
2090 | ||
bb2ac47b AD |
2091 | ret_val = igb_read_phy_reg_mdic(hw, offset, data); |
2092 | ||
2093 | hw->phy.ops.release(hw); | |
2094 | ||
2095 | out: | |
2096 | return ret_val; | |
2097 | } | |
2098 | ||
2099 | /** | |
2100 | * igb_write_phy_reg_82580 - Write 82580 MDI control register | |
2101 | * @hw: pointer to the HW structure | |
2102 | * @offset: register offset to write to | |
2103 | * @data: data to write to register at offset | |
2104 | * | |
2105 | * Writes data to MDI control register in the PHY at offset. | |
2106 | **/ | |
2107 | static s32 igb_write_phy_reg_82580(struct e1000_hw *hw, u32 offset, u16 data) | |
2108 | { | |
bb2ac47b AD |
2109 | s32 ret_val; |
2110 | ||
2111 | ||
2112 | ret_val = hw->phy.ops.acquire(hw); | |
2113 | if (ret_val) | |
2114 | goto out; | |
2115 | ||
bb2ac47b AD |
2116 | ret_val = igb_write_phy_reg_mdic(hw, offset, data); |
2117 | ||
2118 | hw->phy.ops.release(hw); | |
2119 | ||
2120 | out: | |
2121 | return ret_val; | |
2122 | } | |
2123 | ||
08451e25 NN |
2124 | /** |
2125 | * igb_reset_mdicnfg_82580 - Reset MDICNFG destination and com_mdio bits | |
2126 | * @hw: pointer to the HW structure | |
2127 | * | |
2128 | * This resets the the MDICNFG.Destination and MDICNFG.Com_MDIO bits based on | |
2129 | * the values found in the EEPROM. This addresses an issue in which these | |
2130 | * bits are not restored from EEPROM after reset. | |
2131 | **/ | |
2132 | static s32 igb_reset_mdicnfg_82580(struct e1000_hw *hw) | |
2133 | { | |
2134 | s32 ret_val = 0; | |
2135 | u32 mdicnfg; | |
1b5dda33 | 2136 | u16 nvm_data = 0; |
08451e25 NN |
2137 | |
2138 | if (hw->mac.type != e1000_82580) | |
2139 | goto out; | |
2140 | if (!igb_sgmii_active_82575(hw)) | |
2141 | goto out; | |
2142 | ||
2143 | ret_val = hw->nvm.ops.read(hw, NVM_INIT_CONTROL3_PORT_A + | |
2144 | NVM_82580_LAN_FUNC_OFFSET(hw->bus.func), 1, | |
2145 | &nvm_data); | |
2146 | if (ret_val) { | |
2147 | hw_dbg("NVM Read Error\n"); | |
2148 | goto out; | |
2149 | } | |
2150 | ||
2151 | mdicnfg = rd32(E1000_MDICNFG); | |
2152 | if (nvm_data & NVM_WORD24_EXT_MDIO) | |
2153 | mdicnfg |= E1000_MDICNFG_EXT_MDIO; | |
2154 | if (nvm_data & NVM_WORD24_COM_MDIO) | |
2155 | mdicnfg |= E1000_MDICNFG_COM_MDIO; | |
2156 | wr32(E1000_MDICNFG, mdicnfg); | |
2157 | out: | |
2158 | return ret_val; | |
2159 | } | |
2160 | ||
bb2ac47b AD |
2161 | /** |
2162 | * igb_reset_hw_82580 - Reset hardware | |
2163 | * @hw: pointer to the HW structure | |
2164 | * | |
2165 | * This resets function or entire device (all ports, etc.) | |
2166 | * to a known state. | |
2167 | **/ | |
2168 | static s32 igb_reset_hw_82580(struct e1000_hw *hw) | |
2169 | { | |
2170 | s32 ret_val = 0; | |
2171 | /* BH SW mailbox bit in SW_FW_SYNC */ | |
2172 | u16 swmbsw_mask = E1000_SW_SYNCH_MB; | |
2173 | u32 ctrl, icr; | |
2174 | bool global_device_reset = hw->dev_spec._82575.global_device_reset; | |
2175 | ||
2176 | ||
2177 | hw->dev_spec._82575.global_device_reset = false; | |
2178 | ||
a0483e2e CW |
2179 | /* due to hw errata, global device reset doesn't always |
2180 | * work on 82580 | |
2181 | */ | |
2182 | if (hw->mac.type == e1000_82580) | |
2183 | global_device_reset = false; | |
2184 | ||
bb2ac47b AD |
2185 | /* Get current control state. */ |
2186 | ctrl = rd32(E1000_CTRL); | |
2187 | ||
2188 | /* | |
2189 | * Prevent the PCI-E bus from sticking if there is no TLP connection | |
2190 | * on the last TLP read/write transaction when MAC is reset. | |
2191 | */ | |
2192 | ret_val = igb_disable_pcie_master(hw); | |
2193 | if (ret_val) | |
2194 | hw_dbg("PCI-E Master disable polling has failed.\n"); | |
2195 | ||
2196 | hw_dbg("Masking off all interrupts\n"); | |
2197 | wr32(E1000_IMC, 0xffffffff); | |
2198 | wr32(E1000_RCTL, 0); | |
2199 | wr32(E1000_TCTL, E1000_TCTL_PSP); | |
2200 | wrfl(); | |
2201 | ||
2202 | msleep(10); | |
2203 | ||
2204 | /* Determine whether or not a global dev reset is requested */ | |
2205 | if (global_device_reset && | |
f96a8a0b | 2206 | hw->mac.ops.acquire_swfw_sync(hw, swmbsw_mask)) |
bb2ac47b AD |
2207 | global_device_reset = false; |
2208 | ||
2209 | if (global_device_reset && | |
2210 | !(rd32(E1000_STATUS) & E1000_STAT_DEV_RST_SET)) | |
2211 | ctrl |= E1000_CTRL_DEV_RST; | |
2212 | else | |
2213 | ctrl |= E1000_CTRL_RST; | |
2214 | ||
2215 | wr32(E1000_CTRL, ctrl); | |
064b4330 | 2216 | wrfl(); |
bb2ac47b AD |
2217 | |
2218 | /* Add delay to insure DEV_RST has time to complete */ | |
2219 | if (global_device_reset) | |
2220 | msleep(5); | |
2221 | ||
2222 | ret_val = igb_get_auto_rd_done(hw); | |
2223 | if (ret_val) { | |
2224 | /* | |
2225 | * When auto config read does not complete, do not | |
2226 | * return with an error. This can happen in situations | |
2227 | * where there is no eeprom and prevents getting link. | |
2228 | */ | |
2229 | hw_dbg("Auto Read Done did not complete\n"); | |
2230 | } | |
2231 | ||
2232 | /* If EEPROM is not present, run manual init scripts */ | |
2233 | if ((rd32(E1000_EECD) & E1000_EECD_PRES) == 0) | |
2234 | igb_reset_init_script_82575(hw); | |
2235 | ||
2236 | /* clear global device reset status bit */ | |
2237 | wr32(E1000_STATUS, E1000_STAT_DEV_RST_SET); | |
2238 | ||
2239 | /* Clear any pending interrupt events. */ | |
2240 | wr32(E1000_IMC, 0xffffffff); | |
2241 | icr = rd32(E1000_ICR); | |
2242 | ||
08451e25 NN |
2243 | ret_val = igb_reset_mdicnfg_82580(hw); |
2244 | if (ret_val) | |
2245 | hw_dbg("Could not reset MDICNFG based on EEPROM\n"); | |
2246 | ||
bb2ac47b AD |
2247 | /* Install any alternate MAC address into RAR0 */ |
2248 | ret_val = igb_check_alt_mac_addr(hw); | |
2249 | ||
2250 | /* Release semaphore */ | |
2251 | if (global_device_reset) | |
f96a8a0b | 2252 | hw->mac.ops.release_swfw_sync(hw, swmbsw_mask); |
bb2ac47b AD |
2253 | |
2254 | return ret_val; | |
2255 | } | |
2256 | ||
2257 | /** | |
2258 | * igb_rxpbs_adjust_82580 - adjust RXPBS value to reflect actual RX PBA size | |
2259 | * @data: data received by reading RXPBS register | |
2260 | * | |
2261 | * The 82580 uses a table based approach for packet buffer allocation sizes. | |
2262 | * This function converts the retrieved value into the correct table value | |
2263 | * 0x0 0x1 0x2 0x3 0x4 0x5 0x6 0x7 | |
2264 | * 0x0 36 72 144 1 2 4 8 16 | |
2265 | * 0x8 35 70 140 rsv rsv rsv rsv rsv | |
2266 | */ | |
2267 | u16 igb_rxpbs_adjust_82580(u32 data) | |
2268 | { | |
2269 | u16 ret_val = 0; | |
2270 | ||
2271 | if (data < E1000_82580_RXPBS_TABLE_SIZE) | |
2272 | ret_val = e1000_82580_rxpbs_table[data]; | |
2273 | ||
2274 | return ret_val; | |
2275 | } | |
2276 | ||
4322e561 CW |
2277 | /** |
2278 | * igb_validate_nvm_checksum_with_offset - Validate EEPROM | |
2279 | * checksum | |
2280 | * @hw: pointer to the HW structure | |
2281 | * @offset: offset in words of the checksum protected region | |
2282 | * | |
2283 | * Calculates the EEPROM checksum by reading/adding each word of the EEPROM | |
2284 | * and then verifies that the sum of the EEPROM is equal to 0xBABA. | |
2285 | **/ | |
bed45a6e ET |
2286 | static s32 igb_validate_nvm_checksum_with_offset(struct e1000_hw *hw, |
2287 | u16 offset) | |
4322e561 CW |
2288 | { |
2289 | s32 ret_val = 0; | |
2290 | u16 checksum = 0; | |
2291 | u16 i, nvm_data; | |
2292 | ||
2293 | for (i = offset; i < ((NVM_CHECKSUM_REG + offset) + 1); i++) { | |
2294 | ret_val = hw->nvm.ops.read(hw, i, 1, &nvm_data); | |
2295 | if (ret_val) { | |
2296 | hw_dbg("NVM Read Error\n"); | |
2297 | goto out; | |
2298 | } | |
2299 | checksum += nvm_data; | |
2300 | } | |
2301 | ||
2302 | if (checksum != (u16) NVM_SUM) { | |
2303 | hw_dbg("NVM Checksum Invalid\n"); | |
2304 | ret_val = -E1000_ERR_NVM; | |
2305 | goto out; | |
2306 | } | |
2307 | ||
2308 | out: | |
2309 | return ret_val; | |
2310 | } | |
2311 | ||
2312 | /** | |
2313 | * igb_update_nvm_checksum_with_offset - Update EEPROM | |
2314 | * checksum | |
2315 | * @hw: pointer to the HW structure | |
2316 | * @offset: offset in words of the checksum protected region | |
2317 | * | |
2318 | * Updates the EEPROM checksum by reading/adding each word of the EEPROM | |
2319 | * up to the checksum. Then calculates the EEPROM checksum and writes the | |
2320 | * value to the EEPROM. | |
2321 | **/ | |
bed45a6e | 2322 | static s32 igb_update_nvm_checksum_with_offset(struct e1000_hw *hw, u16 offset) |
4322e561 CW |
2323 | { |
2324 | s32 ret_val; | |
2325 | u16 checksum = 0; | |
2326 | u16 i, nvm_data; | |
2327 | ||
2328 | for (i = offset; i < (NVM_CHECKSUM_REG + offset); i++) { | |
2329 | ret_val = hw->nvm.ops.read(hw, i, 1, &nvm_data); | |
2330 | if (ret_val) { | |
2331 | hw_dbg("NVM Read Error while updating checksum.\n"); | |
2332 | goto out; | |
2333 | } | |
2334 | checksum += nvm_data; | |
2335 | } | |
2336 | checksum = (u16) NVM_SUM - checksum; | |
2337 | ret_val = hw->nvm.ops.write(hw, (NVM_CHECKSUM_REG + offset), 1, | |
2338 | &checksum); | |
2339 | if (ret_val) | |
2340 | hw_dbg("NVM Write Error while updating checksum.\n"); | |
2341 | ||
2342 | out: | |
2343 | return ret_val; | |
2344 | } | |
2345 | ||
2346 | /** | |
2347 | * igb_validate_nvm_checksum_82580 - Validate EEPROM checksum | |
2348 | * @hw: pointer to the HW structure | |
2349 | * | |
2350 | * Calculates the EEPROM section checksum by reading/adding each word of | |
2351 | * the EEPROM and then verifies that the sum of the EEPROM is | |
2352 | * equal to 0xBABA. | |
2353 | **/ | |
2354 | static s32 igb_validate_nvm_checksum_82580(struct e1000_hw *hw) | |
2355 | { | |
2356 | s32 ret_val = 0; | |
2357 | u16 eeprom_regions_count = 1; | |
2358 | u16 j, nvm_data; | |
2359 | u16 nvm_offset; | |
2360 | ||
2361 | ret_val = hw->nvm.ops.read(hw, NVM_COMPATIBILITY_REG_3, 1, &nvm_data); | |
2362 | if (ret_val) { | |
2363 | hw_dbg("NVM Read Error\n"); | |
2364 | goto out; | |
2365 | } | |
2366 | ||
2367 | if (nvm_data & NVM_COMPATIBILITY_BIT_MASK) { | |
34a0326e | 2368 | /* if checksums compatibility bit is set validate checksums |
4322e561 CW |
2369 | * for all 4 ports. */ |
2370 | eeprom_regions_count = 4; | |
2371 | } | |
2372 | ||
2373 | for (j = 0; j < eeprom_regions_count; j++) { | |
2374 | nvm_offset = NVM_82580_LAN_FUNC_OFFSET(j); | |
2375 | ret_val = igb_validate_nvm_checksum_with_offset(hw, | |
2376 | nvm_offset); | |
2377 | if (ret_val != 0) | |
2378 | goto out; | |
2379 | } | |
2380 | ||
2381 | out: | |
2382 | return ret_val; | |
2383 | } | |
2384 | ||
2385 | /** | |
2386 | * igb_update_nvm_checksum_82580 - Update EEPROM checksum | |
2387 | * @hw: pointer to the HW structure | |
2388 | * | |
2389 | * Updates the EEPROM section checksums for all 4 ports by reading/adding | |
2390 | * each word of the EEPROM up to the checksum. Then calculates the EEPROM | |
2391 | * checksum and writes the value to the EEPROM. | |
2392 | **/ | |
2393 | static s32 igb_update_nvm_checksum_82580(struct e1000_hw *hw) | |
2394 | { | |
2395 | s32 ret_val; | |
2396 | u16 j, nvm_data; | |
2397 | u16 nvm_offset; | |
2398 | ||
2399 | ret_val = hw->nvm.ops.read(hw, NVM_COMPATIBILITY_REG_3, 1, &nvm_data); | |
2400 | if (ret_val) { | |
2401 | hw_dbg("NVM Read Error while updating checksum" | |
2402 | " compatibility bit.\n"); | |
2403 | goto out; | |
2404 | } | |
2405 | ||
2406 | if ((nvm_data & NVM_COMPATIBILITY_BIT_MASK) == 0) { | |
2407 | /* set compatibility bit to validate checksums appropriately */ | |
2408 | nvm_data = nvm_data | NVM_COMPATIBILITY_BIT_MASK; | |
2409 | ret_val = hw->nvm.ops.write(hw, NVM_COMPATIBILITY_REG_3, 1, | |
2410 | &nvm_data); | |
2411 | if (ret_val) { | |
2412 | hw_dbg("NVM Write Error while updating checksum" | |
2413 | " compatibility bit.\n"); | |
2414 | goto out; | |
2415 | } | |
2416 | } | |
2417 | ||
2418 | for (j = 0; j < 4; j++) { | |
2419 | nvm_offset = NVM_82580_LAN_FUNC_OFFSET(j); | |
2420 | ret_val = igb_update_nvm_checksum_with_offset(hw, nvm_offset); | |
2421 | if (ret_val) | |
2422 | goto out; | |
2423 | } | |
2424 | ||
2425 | out: | |
2426 | return ret_val; | |
2427 | } | |
2428 | ||
2429 | /** | |
2430 | * igb_validate_nvm_checksum_i350 - Validate EEPROM checksum | |
2431 | * @hw: pointer to the HW structure | |
2432 | * | |
2433 | * Calculates the EEPROM section checksum by reading/adding each word of | |
2434 | * the EEPROM and then verifies that the sum of the EEPROM is | |
2435 | * equal to 0xBABA. | |
2436 | **/ | |
2437 | static s32 igb_validate_nvm_checksum_i350(struct e1000_hw *hw) | |
2438 | { | |
2439 | s32 ret_val = 0; | |
2440 | u16 j; | |
2441 | u16 nvm_offset; | |
2442 | ||
2443 | for (j = 0; j < 4; j++) { | |
2444 | nvm_offset = NVM_82580_LAN_FUNC_OFFSET(j); | |
2445 | ret_val = igb_validate_nvm_checksum_with_offset(hw, | |
2446 | nvm_offset); | |
2447 | if (ret_val != 0) | |
2448 | goto out; | |
2449 | } | |
2450 | ||
2451 | out: | |
2452 | return ret_val; | |
2453 | } | |
2454 | ||
2455 | /** | |
2456 | * igb_update_nvm_checksum_i350 - Update EEPROM checksum | |
2457 | * @hw: pointer to the HW structure | |
2458 | * | |
2459 | * Updates the EEPROM section checksums for all 4 ports by reading/adding | |
2460 | * each word of the EEPROM up to the checksum. Then calculates the EEPROM | |
2461 | * checksum and writes the value to the EEPROM. | |
2462 | **/ | |
2463 | static s32 igb_update_nvm_checksum_i350(struct e1000_hw *hw) | |
2464 | { | |
2465 | s32 ret_val = 0; | |
2466 | u16 j; | |
2467 | u16 nvm_offset; | |
2468 | ||
2469 | for (j = 0; j < 4; j++) { | |
2470 | nvm_offset = NVM_82580_LAN_FUNC_OFFSET(j); | |
2471 | ret_val = igb_update_nvm_checksum_with_offset(hw, nvm_offset); | |
2472 | if (ret_val != 0) | |
2473 | goto out; | |
2474 | } | |
2475 | ||
2476 | out: | |
2477 | return ret_val; | |
2478 | } | |
34a0326e | 2479 | |
09b068d4 CW |
2480 | /** |
2481 | * igb_set_eee_i350 - Enable/disable EEE support | |
2482 | * @hw: pointer to the HW structure | |
2483 | * | |
2484 | * Enable/disable EEE based on setting in dev_spec structure. | |
2485 | * | |
2486 | **/ | |
2487 | s32 igb_set_eee_i350(struct e1000_hw *hw) | |
2488 | { | |
2489 | s32 ret_val = 0; | |
e5461112 | 2490 | u32 ipcnfg, eeer; |
09b068d4 | 2491 | |
e5461112 AA |
2492 | if ((hw->mac.type < e1000_i350) || |
2493 | (hw->phy.media_type != e1000_media_type_copper)) | |
09b068d4 CW |
2494 | goto out; |
2495 | ipcnfg = rd32(E1000_IPCNFG); | |
2496 | eeer = rd32(E1000_EEER); | |
2497 | ||
2498 | /* enable or disable per user setting */ | |
2499 | if (!(hw->dev_spec._82575.eee_disable)) { | |
40b20122 CW |
2500 | u32 eee_su = rd32(E1000_EEE_SU); |
2501 | ||
2502 | ipcnfg |= (E1000_IPCNFG_EEE_1G_AN | E1000_IPCNFG_EEE_100M_AN); | |
2503 | eeer |= (E1000_EEER_TX_LPI_EN | E1000_EEER_RX_LPI_EN | | |
09b068d4 CW |
2504 | E1000_EEER_LPI_FC); |
2505 | ||
40b20122 CW |
2506 | /* This bit should not be set in normal operation. */ |
2507 | if (eee_su & E1000_EEE_SU_LPI_CLK_STP) | |
2508 | hw_dbg("LPI Clock Stop Bit should not be set!\n"); | |
2509 | ||
e5461112 | 2510 | |
09b068d4 CW |
2511 | } else { |
2512 | ipcnfg &= ~(E1000_IPCNFG_EEE_1G_AN | | |
2513 | E1000_IPCNFG_EEE_100M_AN); | |
2514 | eeer &= ~(E1000_EEER_TX_LPI_EN | | |
2515 | E1000_EEER_RX_LPI_EN | | |
2516 | E1000_EEER_LPI_FC); | |
2517 | } | |
2518 | wr32(E1000_IPCNFG, ipcnfg); | |
2519 | wr32(E1000_EEER, eeer); | |
e5461112 AA |
2520 | rd32(E1000_IPCNFG); |
2521 | rd32(E1000_EEER); | |
09b068d4 CW |
2522 | out: |
2523 | ||
2524 | return ret_val; | |
2525 | } | |
4322e561 | 2526 | |
e428893b CW |
2527 | static const u8 e1000_emc_temp_data[4] = { |
2528 | E1000_EMC_INTERNAL_DATA, | |
2529 | E1000_EMC_DIODE1_DATA, | |
2530 | E1000_EMC_DIODE2_DATA, | |
2531 | E1000_EMC_DIODE3_DATA | |
2532 | }; | |
2533 | static const u8 e1000_emc_therm_limit[4] = { | |
2534 | E1000_EMC_INTERNAL_THERM_LIMIT, | |
2535 | E1000_EMC_DIODE1_THERM_LIMIT, | |
2536 | E1000_EMC_DIODE2_THERM_LIMIT, | |
2537 | E1000_EMC_DIODE3_THERM_LIMIT | |
2538 | }; | |
2539 | ||
2540 | /* igb_get_thermal_sensor_data_generic - Gathers thermal sensor data | |
2541 | * @hw: pointer to hardware structure | |
2542 | * | |
2543 | * Updates the temperatures in mac.thermal_sensor_data | |
2544 | */ | |
2545 | s32 igb_get_thermal_sensor_data_generic(struct e1000_hw *hw) | |
2546 | { | |
2547 | s32 status = E1000_SUCCESS; | |
2548 | u16 ets_offset; | |
2549 | u16 ets_cfg; | |
2550 | u16 ets_sensor; | |
2551 | u8 num_sensors; | |
2552 | u8 sensor_index; | |
2553 | u8 sensor_location; | |
2554 | u8 i; | |
2555 | struct e1000_thermal_sensor_data *data = &hw->mac.thermal_sensor_data; | |
2556 | ||
2557 | if ((hw->mac.type != e1000_i350) || (hw->bus.func != 0)) | |
2558 | return E1000_NOT_IMPLEMENTED; | |
2559 | ||
2560 | data->sensor[0].temp = (rd32(E1000_THMJT) & 0xFF); | |
2561 | ||
2562 | /* Return the internal sensor only if ETS is unsupported */ | |
2563 | hw->nvm.ops.read(hw, NVM_ETS_CFG, 1, &ets_offset); | |
2564 | if ((ets_offset == 0x0000) || (ets_offset == 0xFFFF)) | |
2565 | return status; | |
2566 | ||
2567 | hw->nvm.ops.read(hw, ets_offset, 1, &ets_cfg); | |
2568 | if (((ets_cfg & NVM_ETS_TYPE_MASK) >> NVM_ETS_TYPE_SHIFT) | |
2569 | != NVM_ETS_TYPE_EMC) | |
2570 | return E1000_NOT_IMPLEMENTED; | |
2571 | ||
2572 | num_sensors = (ets_cfg & NVM_ETS_NUM_SENSORS_MASK); | |
2573 | if (num_sensors > E1000_MAX_SENSORS) | |
2574 | num_sensors = E1000_MAX_SENSORS; | |
2575 | ||
2576 | for (i = 1; i < num_sensors; i++) { | |
2577 | hw->nvm.ops.read(hw, (ets_offset + i), 1, &ets_sensor); | |
2578 | sensor_index = ((ets_sensor & NVM_ETS_DATA_INDEX_MASK) >> | |
2579 | NVM_ETS_DATA_INDEX_SHIFT); | |
2580 | sensor_location = ((ets_sensor & NVM_ETS_DATA_LOC_MASK) >> | |
2581 | NVM_ETS_DATA_LOC_SHIFT); | |
2582 | ||
2583 | if (sensor_location != 0) | |
2584 | hw->phy.ops.read_i2c_byte(hw, | |
2585 | e1000_emc_temp_data[sensor_index], | |
2586 | E1000_I2C_THERMAL_SENSOR_ADDR, | |
2587 | &data->sensor[i].temp); | |
2588 | } | |
2589 | return status; | |
2590 | } | |
2591 | ||
2592 | /* igb_init_thermal_sensor_thresh_generic - Sets thermal sensor thresholds | |
2593 | * @hw: pointer to hardware structure | |
2594 | * | |
2595 | * Sets the thermal sensor thresholds according to the NVM map | |
2596 | * and save off the threshold and location values into mac.thermal_sensor_data | |
2597 | */ | |
2598 | s32 igb_init_thermal_sensor_thresh_generic(struct e1000_hw *hw) | |
2599 | { | |
2600 | s32 status = E1000_SUCCESS; | |
2601 | u16 ets_offset; | |
2602 | u16 ets_cfg; | |
2603 | u16 ets_sensor; | |
2604 | u8 low_thresh_delta; | |
2605 | u8 num_sensors; | |
2606 | u8 sensor_index; | |
2607 | u8 sensor_location; | |
2608 | u8 therm_limit; | |
2609 | u8 i; | |
2610 | struct e1000_thermal_sensor_data *data = &hw->mac.thermal_sensor_data; | |
2611 | ||
2612 | if ((hw->mac.type != e1000_i350) || (hw->bus.func != 0)) | |
2613 | return E1000_NOT_IMPLEMENTED; | |
2614 | ||
2615 | memset(data, 0, sizeof(struct e1000_thermal_sensor_data)); | |
2616 | ||
2617 | data->sensor[0].location = 0x1; | |
2618 | data->sensor[0].caution_thresh = | |
2619 | (rd32(E1000_THHIGHTC) & 0xFF); | |
2620 | data->sensor[0].max_op_thresh = | |
2621 | (rd32(E1000_THLOWTC) & 0xFF); | |
2622 | ||
2623 | /* Return the internal sensor only if ETS is unsupported */ | |
2624 | hw->nvm.ops.read(hw, NVM_ETS_CFG, 1, &ets_offset); | |
2625 | if ((ets_offset == 0x0000) || (ets_offset == 0xFFFF)) | |
2626 | return status; | |
2627 | ||
2628 | hw->nvm.ops.read(hw, ets_offset, 1, &ets_cfg); | |
2629 | if (((ets_cfg & NVM_ETS_TYPE_MASK) >> NVM_ETS_TYPE_SHIFT) | |
2630 | != NVM_ETS_TYPE_EMC) | |
2631 | return E1000_NOT_IMPLEMENTED; | |
2632 | ||
2633 | low_thresh_delta = ((ets_cfg & NVM_ETS_LTHRES_DELTA_MASK) >> | |
2634 | NVM_ETS_LTHRES_DELTA_SHIFT); | |
2635 | num_sensors = (ets_cfg & NVM_ETS_NUM_SENSORS_MASK); | |
2636 | ||
2637 | for (i = 1; i <= num_sensors; i++) { | |
2638 | hw->nvm.ops.read(hw, (ets_offset + i), 1, &ets_sensor); | |
2639 | sensor_index = ((ets_sensor & NVM_ETS_DATA_INDEX_MASK) >> | |
2640 | NVM_ETS_DATA_INDEX_SHIFT); | |
2641 | sensor_location = ((ets_sensor & NVM_ETS_DATA_LOC_MASK) >> | |
2642 | NVM_ETS_DATA_LOC_SHIFT); | |
2643 | therm_limit = ets_sensor & NVM_ETS_DATA_HTHRESH_MASK; | |
2644 | ||
2645 | hw->phy.ops.write_i2c_byte(hw, | |
2646 | e1000_emc_therm_limit[sensor_index], | |
2647 | E1000_I2C_THERMAL_SENSOR_ADDR, | |
2648 | therm_limit); | |
2649 | ||
2650 | if ((i < E1000_MAX_SENSORS) && (sensor_location != 0)) { | |
2651 | data->sensor[i].location = sensor_location; | |
2652 | data->sensor[i].caution_thresh = therm_limit; | |
2653 | data->sensor[i].max_op_thresh = therm_limit - | |
2654 | low_thresh_delta; | |
2655 | } | |
2656 | } | |
2657 | return status; | |
2658 | } | |
2659 | ||
9d5c8243 | 2660 | static struct e1000_mac_operations e1000_mac_ops_82575 = { |
9d5c8243 AK |
2661 | .init_hw = igb_init_hw_82575, |
2662 | .check_for_link = igb_check_for_link_82575, | |
2d064c06 | 2663 | .rar_set = igb_rar_set, |
9d5c8243 AK |
2664 | .read_mac_addr = igb_read_mac_addr_82575, |
2665 | .get_speed_and_duplex = igb_get_speed_and_duplex_copper, | |
e428893b CW |
2666 | #ifdef CONFIG_IGB_HWMON |
2667 | .get_thermal_sensor_data = igb_get_thermal_sensor_data_generic, | |
2668 | .init_thermal_sensor_thresh = igb_init_thermal_sensor_thresh_generic, | |
2669 | #endif | |
9d5c8243 AK |
2670 | }; |
2671 | ||
2672 | static struct e1000_phy_operations e1000_phy_ops_82575 = { | |
a8d2a0c2 | 2673 | .acquire = igb_acquire_phy_82575, |
9d5c8243 | 2674 | .get_cfg_done = igb_get_cfg_done_82575, |
a8d2a0c2 | 2675 | .release = igb_release_phy_82575, |
441fc6fd CW |
2676 | .write_i2c_byte = igb_write_i2c_byte, |
2677 | .read_i2c_byte = igb_read_i2c_byte, | |
9d5c8243 AK |
2678 | }; |
2679 | ||
2680 | static struct e1000_nvm_operations e1000_nvm_ops_82575 = { | |
312c75ae AD |
2681 | .acquire = igb_acquire_nvm_82575, |
2682 | .read = igb_read_nvm_eerd, | |
2683 | .release = igb_release_nvm_82575, | |
2684 | .write = igb_write_nvm_spi, | |
9d5c8243 AK |
2685 | }; |
2686 | ||
2687 | const struct e1000_info e1000_82575_info = { | |
2688 | .get_invariants = igb_get_invariants_82575, | |
2689 | .mac_ops = &e1000_mac_ops_82575, | |
2690 | .phy_ops = &e1000_phy_ops_82575, | |
2691 | .nvm_ops = &e1000_nvm_ops_82575, | |
2692 | }; | |
2693 |