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11afc1b1 PW |
1 | /******************************************************************************* |
2 | ||
3 | Intel 10 Gigabit PCI Express Linux driver | |
4 | Copyright(c) 1999 - 2009 Intel Corporation. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify it | |
7 | under the terms and conditions of the GNU General Public License, | |
8 | version 2, as published by the Free Software Foundation. | |
9 | ||
10 | This program is distributed in the hope it will be useful, but WITHOUT | |
11 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
12 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
13 | more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License along with | |
16 | this program; if not, write to the Free Software Foundation, Inc., | |
17 | 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. | |
18 | ||
19 | The full GNU General Public License is included in this distribution in | |
20 | the file called "COPYING". | |
21 | ||
22 | Contact Information: | |
23 | 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 | #include <linux/pci.h> | |
29 | #include <linux/delay.h> | |
30 | #include <linux/sched.h> | |
31 | ||
32 | #include "ixgbe.h" | |
33 | #include "ixgbe_phy.h" | |
34 | ||
35 | #define IXGBE_82599_MAX_TX_QUEUES 128 | |
36 | #define IXGBE_82599_MAX_RX_QUEUES 128 | |
37 | #define IXGBE_82599_RAR_ENTRIES 128 | |
38 | #define IXGBE_82599_MC_TBL_SIZE 128 | |
39 | #define IXGBE_82599_VFT_TBL_SIZE 128 | |
40 | ||
8620a103 MC |
41 | s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw, |
42 | ixgbe_link_speed speed, | |
43 | bool autoneg, | |
44 | bool autoneg_wait_to_complete); | |
45 | s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw, | |
46 | bool autoneg_wait_to_complete); | |
47 | s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw, | |
48 | ixgbe_link_speed speed, | |
49 | bool autoneg, | |
50 | bool autoneg_wait_to_complete); | |
11afc1b1 PW |
51 | static s32 ixgbe_get_copper_link_capabilities_82599(struct ixgbe_hw *hw, |
52 | ixgbe_link_speed *speed, | |
53 | bool *autoneg); | |
8620a103 MC |
54 | static s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw, |
55 | ixgbe_link_speed speed, | |
56 | bool autoneg, | |
57 | bool autoneg_wait_to_complete); | |
794caeb2 | 58 | static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw); |
11afc1b1 | 59 | |
7b25cdba | 60 | static void ixgbe_init_mac_link_ops_82599(struct ixgbe_hw *hw) |
11afc1b1 PW |
61 | { |
62 | struct ixgbe_mac_info *mac = &hw->mac; | |
63 | if (hw->phy.multispeed_fiber) { | |
64 | /* Set up dual speed SFP+ support */ | |
8620a103 | 65 | mac->ops.setup_link = &ixgbe_setup_mac_link_multispeed_fiber; |
11afc1b1 | 66 | } else { |
8620a103 | 67 | mac->ops.setup_link = &ixgbe_setup_mac_link_82599; |
11afc1b1 PW |
68 | } |
69 | } | |
70 | ||
7b25cdba | 71 | static s32 ixgbe_setup_sfp_modules_82599(struct ixgbe_hw *hw) |
11afc1b1 PW |
72 | { |
73 | s32 ret_val = 0; | |
74 | u16 list_offset, data_offset, data_value; | |
75 | ||
76 | if (hw->phy.sfp_type != ixgbe_sfp_type_unknown) { | |
77 | ixgbe_init_mac_link_ops_82599(hw); | |
553b4497 PW |
78 | |
79 | hw->phy.ops.reset = NULL; | |
80 | ||
11afc1b1 PW |
81 | ret_val = ixgbe_get_sfp_init_sequence_offsets(hw, &list_offset, |
82 | &data_offset); | |
83 | ||
84 | if (ret_val != 0) | |
85 | goto setup_sfp_out; | |
86 | ||
aa5aec88 PWJ |
87 | /* PHY config will finish before releasing the semaphore */ |
88 | ret_val = ixgbe_acquire_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM); | |
89 | if (ret_val != 0) { | |
90 | ret_val = IXGBE_ERR_SWFW_SYNC; | |
91 | goto setup_sfp_out; | |
92 | } | |
93 | ||
11afc1b1 PW |
94 | hw->eeprom.ops.read(hw, ++data_offset, &data_value); |
95 | while (data_value != 0xffff) { | |
96 | IXGBE_WRITE_REG(hw, IXGBE_CORECTL, data_value); | |
97 | IXGBE_WRITE_FLUSH(hw); | |
98 | hw->eeprom.ops.read(hw, ++data_offset, &data_value); | |
99 | } | |
1479ad4f PWJ |
100 | /* Now restart DSP by setting Restart_AN */ |
101 | IXGBE_WRITE_REG(hw, IXGBE_AUTOC, | |
102 | (IXGBE_READ_REG(hw, IXGBE_AUTOC) | IXGBE_AUTOC_AN_RESTART)); | |
aa5aec88 PWJ |
103 | |
104 | /* Release the semaphore */ | |
105 | ixgbe_release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM); | |
106 | /* Delay obtaining semaphore again to allow FW access */ | |
107 | msleep(hw->eeprom.semaphore_delay); | |
11afc1b1 PW |
108 | } |
109 | ||
110 | setup_sfp_out: | |
111 | return ret_val; | |
112 | } | |
113 | ||
114 | /** | |
115 | * ixgbe_get_pcie_msix_count_82599 - Gets MSI-X vector count | |
116 | * @hw: pointer to hardware structure | |
117 | * | |
118 | * Read PCIe configuration space, and get the MSI-X vector count from | |
119 | * the capabilities table. | |
120 | **/ | |
7b25cdba | 121 | static u32 ixgbe_get_pcie_msix_count_82599(struct ixgbe_hw *hw) |
11afc1b1 PW |
122 | { |
123 | struct ixgbe_adapter *adapter = hw->back; | |
124 | u16 msix_count; | |
125 | pci_read_config_word(adapter->pdev, IXGBE_PCIE_MSIX_82599_CAPS, | |
126 | &msix_count); | |
127 | msix_count &= IXGBE_PCIE_MSIX_TBL_SZ_MASK; | |
128 | ||
129 | /* MSI-X count is zero-based in HW, so increment to give proper value */ | |
130 | msix_count++; | |
131 | ||
132 | return msix_count; | |
133 | } | |
134 | ||
135 | static s32 ixgbe_get_invariants_82599(struct ixgbe_hw *hw) | |
136 | { | |
137 | struct ixgbe_mac_info *mac = &hw->mac; | |
11afc1b1 | 138 | |
04f165ef | 139 | ixgbe_init_mac_link_ops_82599(hw); |
11afc1b1 | 140 | |
04f165ef PW |
141 | mac->mcft_size = IXGBE_82599_MC_TBL_SIZE; |
142 | mac->vft_size = IXGBE_82599_VFT_TBL_SIZE; | |
143 | mac->num_rar_entries = IXGBE_82599_RAR_ENTRIES; | |
144 | mac->max_rx_queues = IXGBE_82599_MAX_RX_QUEUES; | |
145 | mac->max_tx_queues = IXGBE_82599_MAX_TX_QUEUES; | |
146 | mac->max_msix_vectors = ixgbe_get_pcie_msix_count_82599(hw); | |
11afc1b1 | 147 | |
04f165ef PW |
148 | return 0; |
149 | } | |
11afc1b1 | 150 | |
04f165ef PW |
151 | /** |
152 | * ixgbe_init_phy_ops_82599 - PHY/SFP specific init | |
153 | * @hw: pointer to hardware structure | |
154 | * | |
155 | * Initialize any function pointers that were not able to be | |
156 | * set during get_invariants because the PHY/SFP type was | |
157 | * not known. Perform the SFP init if necessary. | |
158 | * | |
159 | **/ | |
7b25cdba | 160 | static s32 ixgbe_init_phy_ops_82599(struct ixgbe_hw *hw) |
04f165ef PW |
161 | { |
162 | struct ixgbe_mac_info *mac = &hw->mac; | |
163 | struct ixgbe_phy_info *phy = &hw->phy; | |
164 | s32 ret_val = 0; | |
11afc1b1 | 165 | |
04f165ef PW |
166 | /* Identify the PHY or SFP module */ |
167 | ret_val = phy->ops.identify(hw); | |
168 | ||
169 | /* Setup function pointers based on detected SFP module and speeds */ | |
170 | ixgbe_init_mac_link_ops_82599(hw); | |
11afc1b1 PW |
171 | |
172 | /* If copper media, overwrite with copper function pointers */ | |
173 | if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper) { | |
174 | mac->ops.setup_link = &ixgbe_setup_copper_link_82599; | |
11afc1b1 PW |
175 | mac->ops.get_link_capabilities = |
176 | &ixgbe_get_copper_link_capabilities_82599; | |
177 | } | |
178 | ||
04f165ef | 179 | /* Set necessary function pointers based on phy type */ |
11afc1b1 PW |
180 | switch (hw->phy.type) { |
181 | case ixgbe_phy_tn: | |
182 | phy->ops.check_link = &ixgbe_check_phy_link_tnx; | |
183 | phy->ops.get_firmware_version = | |
04f165ef | 184 | &ixgbe_get_phy_firmware_version_tnx; |
11afc1b1 PW |
185 | break; |
186 | default: | |
187 | break; | |
188 | } | |
189 | ||
11afc1b1 PW |
190 | return ret_val; |
191 | } | |
192 | ||
193 | /** | |
194 | * ixgbe_get_link_capabilities_82599 - Determines link capabilities | |
195 | * @hw: pointer to hardware structure | |
196 | * @speed: pointer to link speed | |
197 | * @negotiation: true when autoneg or autotry is enabled | |
198 | * | |
199 | * Determines the link capabilities by reading the AUTOC register. | |
200 | **/ | |
7b25cdba DS |
201 | static s32 ixgbe_get_link_capabilities_82599(struct ixgbe_hw *hw, |
202 | ixgbe_link_speed *speed, | |
203 | bool *negotiation) | |
11afc1b1 PW |
204 | { |
205 | s32 status = 0; | |
1eb99d5a | 206 | u32 autoc = 0; |
11afc1b1 | 207 | |
1eb99d5a PW |
208 | /* |
209 | * Determine link capabilities based on the stored value of AUTOC, | |
210 | * which represents EEPROM defaults. If AUTOC value has not been | |
211 | * stored, use the current register value. | |
212 | */ | |
213 | if (hw->mac.orig_link_settings_stored) | |
214 | autoc = hw->mac.orig_autoc; | |
215 | else | |
216 | autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC); | |
217 | ||
218 | switch (autoc & IXGBE_AUTOC_LMS_MASK) { | |
11afc1b1 PW |
219 | case IXGBE_AUTOC_LMS_1G_LINK_NO_AN: |
220 | *speed = IXGBE_LINK_SPEED_1GB_FULL; | |
221 | *negotiation = false; | |
222 | break; | |
223 | ||
224 | case IXGBE_AUTOC_LMS_10G_LINK_NO_AN: | |
225 | *speed = IXGBE_LINK_SPEED_10GB_FULL; | |
226 | *negotiation = false; | |
227 | break; | |
228 | ||
229 | case IXGBE_AUTOC_LMS_1G_AN: | |
230 | *speed = IXGBE_LINK_SPEED_1GB_FULL; | |
231 | *negotiation = true; | |
232 | break; | |
233 | ||
234 | case IXGBE_AUTOC_LMS_10G_SERIAL: | |
235 | *speed = IXGBE_LINK_SPEED_10GB_FULL; | |
236 | *negotiation = false; | |
237 | break; | |
238 | ||
239 | case IXGBE_AUTOC_LMS_KX4_KX_KR: | |
240 | case IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN: | |
241 | *speed = IXGBE_LINK_SPEED_UNKNOWN; | |
1eb99d5a | 242 | if (autoc & IXGBE_AUTOC_KR_SUPP) |
11afc1b1 | 243 | *speed |= IXGBE_LINK_SPEED_10GB_FULL; |
1eb99d5a | 244 | if (autoc & IXGBE_AUTOC_KX4_SUPP) |
11afc1b1 | 245 | *speed |= IXGBE_LINK_SPEED_10GB_FULL; |
1eb99d5a | 246 | if (autoc & IXGBE_AUTOC_KX_SUPP) |
11afc1b1 PW |
247 | *speed |= IXGBE_LINK_SPEED_1GB_FULL; |
248 | *negotiation = true; | |
249 | break; | |
250 | ||
251 | case IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII: | |
252 | *speed = IXGBE_LINK_SPEED_100_FULL; | |
1eb99d5a | 253 | if (autoc & IXGBE_AUTOC_KR_SUPP) |
11afc1b1 | 254 | *speed |= IXGBE_LINK_SPEED_10GB_FULL; |
1eb99d5a | 255 | if (autoc & IXGBE_AUTOC_KX4_SUPP) |
11afc1b1 | 256 | *speed |= IXGBE_LINK_SPEED_10GB_FULL; |
1eb99d5a | 257 | if (autoc & IXGBE_AUTOC_KX_SUPP) |
11afc1b1 PW |
258 | *speed |= IXGBE_LINK_SPEED_1GB_FULL; |
259 | *negotiation = true; | |
260 | break; | |
261 | ||
262 | case IXGBE_AUTOC_LMS_SGMII_1G_100M: | |
263 | *speed = IXGBE_LINK_SPEED_1GB_FULL | IXGBE_LINK_SPEED_100_FULL; | |
264 | *negotiation = false; | |
265 | break; | |
266 | ||
267 | default: | |
268 | status = IXGBE_ERR_LINK_SETUP; | |
269 | goto out; | |
270 | break; | |
271 | } | |
272 | ||
273 | if (hw->phy.multispeed_fiber) { | |
274 | *speed |= IXGBE_LINK_SPEED_10GB_FULL | | |
275 | IXGBE_LINK_SPEED_1GB_FULL; | |
276 | *negotiation = true; | |
277 | } | |
278 | ||
279 | out: | |
280 | return status; | |
281 | } | |
282 | ||
283 | /** | |
284 | * ixgbe_get_copper_link_capabilities_82599 - Determines link capabilities | |
285 | * @hw: pointer to hardware structure | |
286 | * @speed: pointer to link speed | |
287 | * @autoneg: boolean auto-negotiation value | |
288 | * | |
289 | * Determines the link capabilities by reading the AUTOC register. | |
290 | **/ | |
291 | static s32 ixgbe_get_copper_link_capabilities_82599(struct ixgbe_hw *hw, | |
292 | ixgbe_link_speed *speed, | |
293 | bool *autoneg) | |
294 | { | |
295 | s32 status = IXGBE_ERR_LINK_SETUP; | |
296 | u16 speed_ability; | |
297 | ||
298 | *speed = 0; | |
299 | *autoneg = true; | |
300 | ||
6b73e10d | 301 | status = hw->phy.ops.read_reg(hw, MDIO_SPEED, MDIO_MMD_PMAPMD, |
11afc1b1 PW |
302 | &speed_ability); |
303 | ||
304 | if (status == 0) { | |
6b73e10d | 305 | if (speed_ability & MDIO_SPEED_10G) |
11afc1b1 | 306 | *speed |= IXGBE_LINK_SPEED_10GB_FULL; |
6b73e10d | 307 | if (speed_ability & MDIO_PMA_SPEED_1000) |
11afc1b1 PW |
308 | *speed |= IXGBE_LINK_SPEED_1GB_FULL; |
309 | } | |
310 | ||
311 | return status; | |
312 | } | |
313 | ||
314 | /** | |
315 | * ixgbe_get_media_type_82599 - Get media type | |
316 | * @hw: pointer to hardware structure | |
317 | * | |
318 | * Returns the media type (fiber, copper, backplane) | |
319 | **/ | |
7b25cdba | 320 | static enum ixgbe_media_type ixgbe_get_media_type_82599(struct ixgbe_hw *hw) |
11afc1b1 PW |
321 | { |
322 | enum ixgbe_media_type media_type; | |
323 | ||
324 | /* Detect if there is a copper PHY attached. */ | |
325 | if (hw->phy.type == ixgbe_phy_cu_unknown || | |
326 | hw->phy.type == ixgbe_phy_tn) { | |
327 | media_type = ixgbe_media_type_copper; | |
328 | goto out; | |
329 | } | |
330 | ||
331 | switch (hw->device_id) { | |
11afc1b1 | 332 | case IXGBE_DEV_ID_82599_KX4: |
dbfec662 | 333 | case IXGBE_DEV_ID_82599_KX4_MEZZ: |
312eb931 | 334 | case IXGBE_DEV_ID_82599_COMBO_BACKPLANE: |
1fcf03e6 | 335 | case IXGBE_DEV_ID_82599_XAUI_LOM: |
11afc1b1 PW |
336 | /* Default device ID is mezzanine card KX/KX4 */ |
337 | media_type = ixgbe_media_type_backplane; | |
338 | break; | |
339 | case IXGBE_DEV_ID_82599_SFP: | |
38ad1c8e | 340 | case IXGBE_DEV_ID_82599_SFP_EM: |
11afc1b1 PW |
341 | media_type = ixgbe_media_type_fiber; |
342 | break; | |
8911184f | 343 | case IXGBE_DEV_ID_82599_CX4: |
6b1be199 | 344 | media_type = ixgbe_media_type_cx4; |
8911184f | 345 | break; |
11afc1b1 PW |
346 | default: |
347 | media_type = ixgbe_media_type_unknown; | |
348 | break; | |
349 | } | |
350 | out: | |
351 | return media_type; | |
352 | } | |
353 | ||
354 | /** | |
8620a103 | 355 | * ixgbe_start_mac_link_82599 - Setup MAC link settings |
11afc1b1 | 356 | * @hw: pointer to hardware structure |
8620a103 | 357 | * @autoneg_wait_to_complete: true when waiting for completion is needed |
11afc1b1 PW |
358 | * |
359 | * Configures link settings based on values in the ixgbe_hw struct. | |
360 | * Restarts the link. Performs autonegotiation if needed. | |
361 | **/ | |
8620a103 MC |
362 | s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw, |
363 | bool autoneg_wait_to_complete) | |
11afc1b1 PW |
364 | { |
365 | u32 autoc_reg; | |
366 | u32 links_reg; | |
367 | u32 i; | |
368 | s32 status = 0; | |
369 | ||
370 | /* Restart link */ | |
371 | autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC); | |
372 | autoc_reg |= IXGBE_AUTOC_AN_RESTART; | |
373 | IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg); | |
374 | ||
375 | /* Only poll for autoneg to complete if specified to do so */ | |
8620a103 | 376 | if (autoneg_wait_to_complete) { |
11afc1b1 PW |
377 | if ((autoc_reg & IXGBE_AUTOC_LMS_MASK) == |
378 | IXGBE_AUTOC_LMS_KX4_KX_KR || | |
379 | (autoc_reg & IXGBE_AUTOC_LMS_MASK) == | |
380 | IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN || | |
381 | (autoc_reg & IXGBE_AUTOC_LMS_MASK) == | |
382 | IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) { | |
383 | links_reg = 0; /* Just in case Autoneg time = 0 */ | |
384 | for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) { | |
385 | links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS); | |
386 | if (links_reg & IXGBE_LINKS_KX_AN_COMP) | |
387 | break; | |
388 | msleep(100); | |
389 | } | |
390 | if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) { | |
391 | status = IXGBE_ERR_AUTONEG_NOT_COMPLETE; | |
392 | hw_dbg(hw, "Autoneg did not complete.\n"); | |
393 | } | |
394 | } | |
395 | } | |
396 | ||
11afc1b1 PW |
397 | /* Add delay to filter out noises during initial link setup */ |
398 | msleep(50); | |
399 | ||
400 | return status; | |
401 | } | |
402 | ||
403 | /** | |
8620a103 | 404 | * ixgbe_setup_mac_link_multispeed_fiber - Set MAC link speed |
11afc1b1 PW |
405 | * @hw: pointer to hardware structure |
406 | * @speed: new link speed | |
407 | * @autoneg: true if autonegotiation enabled | |
408 | * @autoneg_wait_to_complete: true when waiting for completion is needed | |
409 | * | |
410 | * Set the link speed in the AUTOC register and restarts link. | |
411 | **/ | |
8620a103 MC |
412 | s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw, |
413 | ixgbe_link_speed speed, | |
414 | bool autoneg, | |
415 | bool autoneg_wait_to_complete) | |
11afc1b1 PW |
416 | { |
417 | s32 status = 0; | |
418 | ixgbe_link_speed phy_link_speed; | |
419 | ixgbe_link_speed highest_link_speed = IXGBE_LINK_SPEED_UNKNOWN; | |
420 | u32 speedcnt = 0; | |
421 | u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP); | |
422 | bool link_up = false; | |
423 | bool negotiation; | |
50ac58ba | 424 | int i; |
11afc1b1 PW |
425 | |
426 | /* Mask off requested but non-supported speeds */ | |
427 | hw->mac.ops.get_link_capabilities(hw, &phy_link_speed, &negotiation); | |
428 | speed &= phy_link_speed; | |
429 | ||
50ac58ba PWJ |
430 | /* |
431 | * When the driver changes the link speeds that it can support, | |
432 | * it sets autotry_restart to true to indicate that we need to | |
433 | * initiate a new autotry session with the link partner. To do | |
434 | * so, we set the speed then disable and re-enable the tx laser, to | |
435 | * alert the link partner that it also needs to restart autotry on its | |
436 | * end. This is consistent with true clause 37 autoneg, which also | |
437 | * involves a loss of signal. | |
438 | */ | |
439 | ||
11afc1b1 PW |
440 | /* |
441 | * Try each speed one by one, highest priority first. We do this in | |
442 | * software because 10gb fiber doesn't support speed autonegotiation. | |
443 | */ | |
444 | if (speed & IXGBE_LINK_SPEED_10GB_FULL) { | |
445 | speedcnt++; | |
446 | highest_link_speed = IXGBE_LINK_SPEED_10GB_FULL; | |
447 | ||
50ac58ba PWJ |
448 | /* If we already have link at this speed, just jump out */ |
449 | hw->mac.ops.check_link(hw, &phy_link_speed, &link_up, false); | |
450 | ||
451 | if ((phy_link_speed == IXGBE_LINK_SPEED_10GB_FULL) && link_up) | |
452 | goto out; | |
453 | ||
454 | /* Set the module link speed */ | |
11afc1b1 PW |
455 | esdp_reg |= (IXGBE_ESDP_SDP5_DIR | IXGBE_ESDP_SDP5); |
456 | IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg); | |
457 | ||
50ac58ba PWJ |
458 | /* Allow module to change analog characteristics (1G->10G) */ |
459 | msleep(40); | |
11afc1b1 | 460 | |
8620a103 MC |
461 | status = ixgbe_setup_mac_link_82599(hw, |
462 | IXGBE_LINK_SPEED_10GB_FULL, | |
463 | autoneg, | |
464 | autoneg_wait_to_complete); | |
50ac58ba | 465 | if (status != 0) |
c3c74327 | 466 | return status; |
50ac58ba PWJ |
467 | |
468 | /* Flap the tx laser if it has not already been done */ | |
469 | if (hw->mac.autotry_restart) { | |
470 | /* Disable tx laser; allow 100us to go dark per spec */ | |
471 | esdp_reg |= IXGBE_ESDP_SDP3; | |
472 | IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg); | |
473 | udelay(100); | |
474 | ||
475 | /* Enable tx laser; allow 2ms to light up per spec */ | |
476 | esdp_reg &= ~IXGBE_ESDP_SDP3; | |
477 | IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg); | |
478 | msleep(2); | |
479 | ||
480 | hw->mac.autotry_restart = false; | |
481 | } | |
482 | ||
483 | /* The controller may take up to 500ms at 10g to acquire link */ | |
484 | for (i = 0; i < 5; i++) { | |
485 | /* Wait for the link partner to also set speed */ | |
486 | msleep(100); | |
487 | ||
488 | /* If we have link, just jump out */ | |
489 | hw->mac.ops.check_link(hw, &phy_link_speed, | |
490 | &link_up, false); | |
491 | if (link_up) | |
492 | goto out; | |
493 | } | |
11afc1b1 PW |
494 | } |
495 | ||
496 | if (speed & IXGBE_LINK_SPEED_1GB_FULL) { | |
497 | speedcnt++; | |
498 | if (highest_link_speed == IXGBE_LINK_SPEED_UNKNOWN) | |
499 | highest_link_speed = IXGBE_LINK_SPEED_1GB_FULL; | |
500 | ||
50ac58ba PWJ |
501 | /* If we already have link at this speed, just jump out */ |
502 | hw->mac.ops.check_link(hw, &phy_link_speed, &link_up, false); | |
503 | ||
504 | if ((phy_link_speed == IXGBE_LINK_SPEED_1GB_FULL) && link_up) | |
505 | goto out; | |
506 | ||
507 | /* Set the module link speed */ | |
11afc1b1 PW |
508 | esdp_reg &= ~IXGBE_ESDP_SDP5; |
509 | esdp_reg |= IXGBE_ESDP_SDP5_DIR; | |
510 | IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg); | |
511 | ||
50ac58ba PWJ |
512 | /* Allow module to change analog characteristics (10G->1G) */ |
513 | msleep(40); | |
11afc1b1 | 514 | |
8620a103 | 515 | status = ixgbe_setup_mac_link_82599(hw, |
50ac58ba PWJ |
516 | IXGBE_LINK_SPEED_1GB_FULL, |
517 | autoneg, | |
518 | autoneg_wait_to_complete); | |
519 | if (status != 0) | |
c3c74327 | 520 | return status; |
50ac58ba PWJ |
521 | |
522 | /* Flap the tx laser if it has not already been done */ | |
523 | if (hw->mac.autotry_restart) { | |
524 | /* Disable tx laser; allow 100us to go dark per spec */ | |
525 | esdp_reg |= IXGBE_ESDP_SDP3; | |
526 | IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg); | |
527 | udelay(100); | |
528 | ||
529 | /* Enable tx laser; allow 2ms to light up per spec */ | |
530 | esdp_reg &= ~IXGBE_ESDP_SDP3; | |
531 | IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg); | |
532 | msleep(2); | |
533 | ||
534 | hw->mac.autotry_restart = false; | |
535 | } | |
536 | ||
537 | /* Wait for the link partner to also set speed */ | |
538 | msleep(100); | |
11afc1b1 PW |
539 | |
540 | /* If we have link, just jump out */ | |
541 | hw->mac.ops.check_link(hw, &phy_link_speed, &link_up, false); | |
542 | if (link_up) | |
543 | goto out; | |
544 | } | |
545 | ||
546 | /* | |
547 | * We didn't get link. Configure back to the highest speed we tried, | |
548 | * (if there was more than one). We call ourselves back with just the | |
549 | * single highest speed that the user requested. | |
550 | */ | |
551 | if (speedcnt > 1) | |
8620a103 MC |
552 | status = ixgbe_setup_mac_link_multispeed_fiber(hw, |
553 | highest_link_speed, | |
554 | autoneg, | |
555 | autoneg_wait_to_complete); | |
11afc1b1 PW |
556 | |
557 | out: | |
c3c74327 MC |
558 | /* Set autoneg_advertised value based on input link speed */ |
559 | hw->phy.autoneg_advertised = 0; | |
560 | ||
561 | if (speed & IXGBE_LINK_SPEED_10GB_FULL) | |
562 | hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_10GB_FULL; | |
563 | ||
564 | if (speed & IXGBE_LINK_SPEED_1GB_FULL) | |
565 | hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_1GB_FULL; | |
566 | ||
11afc1b1 PW |
567 | return status; |
568 | } | |
569 | ||
570 | /** | |
571 | * ixgbe_check_mac_link_82599 - Determine link and speed status | |
572 | * @hw: pointer to hardware structure | |
573 | * @speed: pointer to link speed | |
574 | * @link_up: true when link is up | |
575 | * @link_up_wait_to_complete: bool used to wait for link up or not | |
576 | * | |
577 | * Reads the links register to determine if link is up and the current speed | |
578 | **/ | |
7b25cdba DS |
579 | static s32 ixgbe_check_mac_link_82599(struct ixgbe_hw *hw, |
580 | ixgbe_link_speed *speed, | |
581 | bool *link_up, | |
582 | bool link_up_wait_to_complete) | |
11afc1b1 PW |
583 | { |
584 | u32 links_reg; | |
585 | u32 i; | |
586 | ||
587 | links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS); | |
588 | if (link_up_wait_to_complete) { | |
589 | for (i = 0; i < IXGBE_LINK_UP_TIME; i++) { | |
590 | if (links_reg & IXGBE_LINKS_UP) { | |
591 | *link_up = true; | |
592 | break; | |
593 | } else { | |
594 | *link_up = false; | |
595 | } | |
596 | msleep(100); | |
597 | links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS); | |
598 | } | |
599 | } else { | |
600 | if (links_reg & IXGBE_LINKS_UP) | |
601 | *link_up = true; | |
602 | else | |
603 | *link_up = false; | |
604 | } | |
605 | ||
606 | if ((links_reg & IXGBE_LINKS_SPEED_82599) == | |
607 | IXGBE_LINKS_SPEED_10G_82599) | |
608 | *speed = IXGBE_LINK_SPEED_10GB_FULL; | |
609 | else if ((links_reg & IXGBE_LINKS_SPEED_82599) == | |
610 | IXGBE_LINKS_SPEED_1G_82599) | |
611 | *speed = IXGBE_LINK_SPEED_1GB_FULL; | |
612 | else | |
613 | *speed = IXGBE_LINK_SPEED_100_FULL; | |
614 | ||
620fa036 MC |
615 | /* if link is down, zero out the current_mode */ |
616 | if (*link_up == false) { | |
617 | hw->fc.current_mode = ixgbe_fc_none; | |
618 | hw->fc.fc_was_autonegged = false; | |
619 | } | |
11afc1b1 PW |
620 | |
621 | return 0; | |
622 | } | |
623 | ||
624 | /** | |
8620a103 | 625 | * ixgbe_setup_mac_link_82599 - Set MAC link speed |
11afc1b1 PW |
626 | * @hw: pointer to hardware structure |
627 | * @speed: new link speed | |
628 | * @autoneg: true if autonegotiation enabled | |
629 | * @autoneg_wait_to_complete: true when waiting for completion is needed | |
630 | * | |
631 | * Set the link speed in the AUTOC register and restarts link. | |
632 | **/ | |
8620a103 MC |
633 | s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw, |
634 | ixgbe_link_speed speed, bool autoneg, | |
635 | bool autoneg_wait_to_complete) | |
11afc1b1 PW |
636 | { |
637 | s32 status = 0; | |
638 | u32 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC); | |
639 | u32 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2); | |
50ac58ba | 640 | u32 start_autoc = autoc; |
1eb99d5a | 641 | u32 orig_autoc = 0; |
11afc1b1 PW |
642 | u32 link_mode = autoc & IXGBE_AUTOC_LMS_MASK; |
643 | u32 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK; | |
644 | u32 pma_pmd_10g_serial = autoc2 & IXGBE_AUTOC2_10G_SERIAL_PMA_PMD_MASK; | |
645 | u32 links_reg; | |
646 | u32 i; | |
647 | ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN; | |
648 | ||
649 | /* Check to see if speed passed in is supported. */ | |
650 | hw->mac.ops.get_link_capabilities(hw, &link_capabilities, &autoneg); | |
651 | speed &= link_capabilities; | |
652 | ||
50ac58ba PWJ |
653 | if (speed == IXGBE_LINK_SPEED_UNKNOWN) { |
654 | status = IXGBE_ERR_LINK_SETUP; | |
655 | goto out; | |
656 | } | |
657 | ||
1eb99d5a PW |
658 | /* Use stored value (EEPROM defaults) of AUTOC to find KR/KX4 support*/ |
659 | if (hw->mac.orig_link_settings_stored) | |
660 | orig_autoc = hw->mac.orig_autoc; | |
661 | else | |
662 | orig_autoc = autoc; | |
663 | ||
664 | ||
50ac58ba PWJ |
665 | if (link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR || |
666 | link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN || | |
667 | link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) { | |
11afc1b1 PW |
668 | /* Set KX4/KX/KR support according to speed requested */ |
669 | autoc &= ~(IXGBE_AUTOC_KX4_KX_SUPP_MASK | IXGBE_AUTOC_KR_SUPP); | |
670 | if (speed & IXGBE_LINK_SPEED_10GB_FULL) | |
1eb99d5a | 671 | if (orig_autoc & IXGBE_AUTOC_KX4_SUPP) |
11afc1b1 | 672 | autoc |= IXGBE_AUTOC_KX4_SUPP; |
1eb99d5a | 673 | if (orig_autoc & IXGBE_AUTOC_KR_SUPP) |
11afc1b1 PW |
674 | autoc |= IXGBE_AUTOC_KR_SUPP; |
675 | if (speed & IXGBE_LINK_SPEED_1GB_FULL) | |
676 | autoc |= IXGBE_AUTOC_KX_SUPP; | |
677 | } else if ((pma_pmd_1g == IXGBE_AUTOC_1G_SFI) && | |
678 | (link_mode == IXGBE_AUTOC_LMS_1G_LINK_NO_AN || | |
679 | link_mode == IXGBE_AUTOC_LMS_1G_AN)) { | |
680 | /* Switch from 1G SFI to 10G SFI if requested */ | |
681 | if ((speed == IXGBE_LINK_SPEED_10GB_FULL) && | |
682 | (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI)) { | |
683 | autoc &= ~IXGBE_AUTOC_LMS_MASK; | |
684 | autoc |= IXGBE_AUTOC_LMS_10G_SERIAL; | |
685 | } | |
686 | } else if ((pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI) && | |
687 | (link_mode == IXGBE_AUTOC_LMS_10G_SERIAL)) { | |
688 | /* Switch from 10G SFI to 1G SFI if requested */ | |
689 | if ((speed == IXGBE_LINK_SPEED_1GB_FULL) && | |
690 | (pma_pmd_1g == IXGBE_AUTOC_1G_SFI)) { | |
691 | autoc &= ~IXGBE_AUTOC_LMS_MASK; | |
692 | if (autoneg) | |
693 | autoc |= IXGBE_AUTOC_LMS_1G_AN; | |
694 | else | |
695 | autoc |= IXGBE_AUTOC_LMS_1G_LINK_NO_AN; | |
696 | } | |
697 | } | |
698 | ||
50ac58ba | 699 | if (autoc != start_autoc) { |
11afc1b1 PW |
700 | /* Restart link */ |
701 | autoc |= IXGBE_AUTOC_AN_RESTART; | |
702 | IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc); | |
703 | ||
704 | /* Only poll for autoneg to complete if specified to do so */ | |
705 | if (autoneg_wait_to_complete) { | |
706 | if (link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR || | |
707 | link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN || | |
708 | link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) { | |
709 | links_reg = 0; /*Just in case Autoneg time=0*/ | |
710 | for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) { | |
711 | links_reg = | |
712 | IXGBE_READ_REG(hw, IXGBE_LINKS); | |
713 | if (links_reg & IXGBE_LINKS_KX_AN_COMP) | |
714 | break; | |
715 | msleep(100); | |
716 | } | |
717 | if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) { | |
718 | status = | |
719 | IXGBE_ERR_AUTONEG_NOT_COMPLETE; | |
720 | hw_dbg(hw, "Autoneg did not " | |
721 | "complete.\n"); | |
722 | } | |
723 | } | |
724 | } | |
725 | ||
11afc1b1 PW |
726 | /* Add delay to filter out noises during initial link setup */ |
727 | msleep(50); | |
728 | } | |
729 | ||
50ac58ba | 730 | out: |
11afc1b1 PW |
731 | return status; |
732 | } | |
733 | ||
734 | /** | |
8620a103 | 735 | * ixgbe_setup_copper_link_82599 - Set the PHY autoneg advertised field |
11afc1b1 PW |
736 | * @hw: pointer to hardware structure |
737 | * @speed: new link speed | |
738 | * @autoneg: true if autonegotiation enabled | |
739 | * @autoneg_wait_to_complete: true if waiting is needed to complete | |
740 | * | |
741 | * Restarts link on PHY and MAC based on settings passed in. | |
742 | **/ | |
8620a103 MC |
743 | static s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw, |
744 | ixgbe_link_speed speed, | |
745 | bool autoneg, | |
746 | bool autoneg_wait_to_complete) | |
11afc1b1 PW |
747 | { |
748 | s32 status; | |
749 | ||
750 | /* Setup the PHY according to input speed */ | |
751 | status = hw->phy.ops.setup_link_speed(hw, speed, autoneg, | |
752 | autoneg_wait_to_complete); | |
753 | /* Set up MAC */ | |
8620a103 | 754 | ixgbe_start_mac_link_82599(hw, autoneg_wait_to_complete); |
11afc1b1 PW |
755 | |
756 | return status; | |
757 | } | |
758 | ||
759 | /** | |
760 | * ixgbe_reset_hw_82599 - Perform hardware reset | |
761 | * @hw: pointer to hardware structure | |
762 | * | |
763 | * Resets the hardware by resetting the transmit and receive units, masks | |
764 | * and clears all interrupts, perform a PHY reset, and perform a link (MAC) | |
765 | * reset. | |
766 | **/ | |
7b25cdba | 767 | static s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw) |
11afc1b1 PW |
768 | { |
769 | s32 status = 0; | |
770 | u32 ctrl, ctrl_ext; | |
771 | u32 i; | |
772 | u32 autoc; | |
773 | u32 autoc2; | |
774 | ||
775 | /* Call adapter stop to disable tx/rx and clear interrupts */ | |
776 | hw->mac.ops.stop_adapter(hw); | |
777 | ||
553b4497 | 778 | /* PHY ops must be identified and initialized prior to reset */ |
04f165ef | 779 | |
553b4497 PW |
780 | /* Init PHY and function pointers, perform SFP setup */ |
781 | status = hw->phy.ops.init(hw); | |
04f165ef | 782 | |
553b4497 PW |
783 | if (status == IXGBE_ERR_SFP_NOT_SUPPORTED) |
784 | goto reset_hw_out; | |
04f165ef | 785 | |
553b4497 PW |
786 | /* Setup SFP module if there is one present. */ |
787 | if (hw->phy.sfp_setup_needed) { | |
788 | status = hw->mac.ops.setup_sfp(hw); | |
789 | hw->phy.sfp_setup_needed = false; | |
04f165ef | 790 | } |
11afc1b1 | 791 | |
553b4497 PW |
792 | /* Reset PHY */ |
793 | if (hw->phy.reset_disable == false && hw->phy.ops.reset != NULL) | |
794 | hw->phy.ops.reset(hw); | |
795 | ||
11afc1b1 PW |
796 | /* |
797 | * Prevent the PCI-E bus from from hanging by disabling PCI-E master | |
798 | * access and verify no pending requests before reset | |
799 | */ | |
04f165ef PW |
800 | status = ixgbe_disable_pcie_master(hw); |
801 | if (status != 0) { | |
11afc1b1 PW |
802 | status = IXGBE_ERR_MASTER_REQUESTS_PENDING; |
803 | hw_dbg(hw, "PCI-E Master disable polling has failed.\n"); | |
804 | } | |
805 | ||
806 | /* | |
807 | * Issue global reset to the MAC. This needs to be a SW reset. | |
808 | * If link reset is used, it might reset the MAC when mng is using it | |
809 | */ | |
810 | ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL); | |
811 | IXGBE_WRITE_REG(hw, IXGBE_CTRL, (ctrl | IXGBE_CTRL_RST)); | |
812 | IXGBE_WRITE_FLUSH(hw); | |
813 | ||
814 | /* Poll for reset bit to self-clear indicating reset is complete */ | |
815 | for (i = 0; i < 10; i++) { | |
816 | udelay(1); | |
817 | ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL); | |
818 | if (!(ctrl & IXGBE_CTRL_RST)) | |
819 | break; | |
820 | } | |
821 | if (ctrl & IXGBE_CTRL_RST) { | |
822 | status = IXGBE_ERR_RESET_FAILED; | |
823 | hw_dbg(hw, "Reset polling failed to complete.\n"); | |
824 | } | |
825 | /* Clear PF Reset Done bit so PF/VF Mail Ops can work */ | |
826 | ctrl_ext = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT); | |
827 | ctrl_ext |= IXGBE_CTRL_EXT_PFRSTD; | |
828 | IXGBE_WRITE_REG(hw, IXGBE_CTRL_EXT, ctrl_ext); | |
829 | ||
830 | msleep(50); | |
831 | ||
832 | ||
833 | ||
834 | /* | |
835 | * Store the original AUTOC/AUTOC2 values if they have not been | |
836 | * stored off yet. Otherwise restore the stored original | |
837 | * values since the reset operation sets back to defaults. | |
838 | */ | |
839 | autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC); | |
840 | autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2); | |
841 | if (hw->mac.orig_link_settings_stored == false) { | |
842 | hw->mac.orig_autoc = autoc; | |
843 | hw->mac.orig_autoc2 = autoc2; | |
844 | hw->mac.orig_link_settings_stored = true; | |
4df10466 | 845 | } else { |
11afc1b1 PW |
846 | if (autoc != hw->mac.orig_autoc) |
847 | IXGBE_WRITE_REG(hw, IXGBE_AUTOC, (hw->mac.orig_autoc | | |
848 | IXGBE_AUTOC_AN_RESTART)); | |
849 | ||
850 | if ((autoc2 & IXGBE_AUTOC2_UPPER_MASK) != | |
851 | (hw->mac.orig_autoc2 & IXGBE_AUTOC2_UPPER_MASK)) { | |
852 | autoc2 &= ~IXGBE_AUTOC2_UPPER_MASK; | |
853 | autoc2 |= (hw->mac.orig_autoc2 & | |
854 | IXGBE_AUTOC2_UPPER_MASK); | |
855 | IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2); | |
856 | } | |
857 | } | |
858 | ||
aca6bee7 WJP |
859 | /* |
860 | * Store MAC address from RAR0, clear receive address registers, and | |
861 | * clear the multicast table. Also reset num_rar_entries to 128, | |
862 | * since we modify this value when programming the SAN MAC address. | |
863 | */ | |
864 | hw->mac.num_rar_entries = 128; | |
865 | hw->mac.ops.init_rx_addrs(hw); | |
866 | ||
11afc1b1 PW |
867 | /* Store the permanent mac address */ |
868 | hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr); | |
869 | ||
0365e6e4 PW |
870 | /* Store the permanent SAN mac address */ |
871 | hw->mac.ops.get_san_mac_addr(hw, hw->mac.san_addr); | |
872 | ||
aca6bee7 WJP |
873 | /* Add the SAN MAC address to the RAR only if it's a valid address */ |
874 | if (ixgbe_validate_mac_addr(hw->mac.san_addr) == 0) { | |
875 | hw->mac.ops.set_rar(hw, hw->mac.num_rar_entries - 1, | |
876 | hw->mac.san_addr, 0, IXGBE_RAH_AV); | |
877 | ||
878 | /* Reserve the last RAR for the SAN MAC address */ | |
879 | hw->mac.num_rar_entries--; | |
880 | } | |
881 | ||
04f165ef | 882 | reset_hw_out: |
11afc1b1 PW |
883 | return status; |
884 | } | |
885 | ||
886 | /** | |
887 | * ixgbe_clear_vmdq_82599 - Disassociate a VMDq pool index from a rx address | |
888 | * @hw: pointer to hardware struct | |
889 | * @rar: receive address register index to disassociate | |
890 | * @vmdq: VMDq pool index to remove from the rar | |
891 | **/ | |
7b25cdba | 892 | static s32 ixgbe_clear_vmdq_82599(struct ixgbe_hw *hw, u32 rar, u32 vmdq) |
11afc1b1 PW |
893 | { |
894 | u32 mpsar_lo, mpsar_hi; | |
895 | u32 rar_entries = hw->mac.num_rar_entries; | |
896 | ||
897 | if (rar < rar_entries) { | |
898 | mpsar_lo = IXGBE_READ_REG(hw, IXGBE_MPSAR_LO(rar)); | |
899 | mpsar_hi = IXGBE_READ_REG(hw, IXGBE_MPSAR_HI(rar)); | |
900 | ||
901 | if (!mpsar_lo && !mpsar_hi) | |
902 | goto done; | |
903 | ||
904 | if (vmdq == IXGBE_CLEAR_VMDQ_ALL) { | |
905 | if (mpsar_lo) { | |
906 | IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), 0); | |
907 | mpsar_lo = 0; | |
908 | } | |
909 | if (mpsar_hi) { | |
910 | IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), 0); | |
911 | mpsar_hi = 0; | |
912 | } | |
913 | } else if (vmdq < 32) { | |
914 | mpsar_lo &= ~(1 << vmdq); | |
915 | IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), mpsar_lo); | |
916 | } else { | |
917 | mpsar_hi &= ~(1 << (vmdq - 32)); | |
918 | IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), mpsar_hi); | |
919 | } | |
920 | ||
921 | /* was that the last pool using this rar? */ | |
922 | if (mpsar_lo == 0 && mpsar_hi == 0 && rar != 0) | |
923 | hw->mac.ops.clear_rar(hw, rar); | |
924 | } else { | |
925 | hw_dbg(hw, "RAR index %d is out of range.\n", rar); | |
926 | } | |
927 | ||
928 | done: | |
929 | return 0; | |
930 | } | |
931 | ||
932 | /** | |
933 | * ixgbe_set_vmdq_82599 - Associate a VMDq pool index with a rx address | |
934 | * @hw: pointer to hardware struct | |
935 | * @rar: receive address register index to associate with a VMDq index | |
936 | * @vmdq: VMDq pool index | |
937 | **/ | |
7b25cdba | 938 | static s32 ixgbe_set_vmdq_82599(struct ixgbe_hw *hw, u32 rar, u32 vmdq) |
11afc1b1 PW |
939 | { |
940 | u32 mpsar; | |
941 | u32 rar_entries = hw->mac.num_rar_entries; | |
942 | ||
943 | if (rar < rar_entries) { | |
944 | if (vmdq < 32) { | |
945 | mpsar = IXGBE_READ_REG(hw, IXGBE_MPSAR_LO(rar)); | |
946 | mpsar |= 1 << vmdq; | |
947 | IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), mpsar); | |
948 | } else { | |
949 | mpsar = IXGBE_READ_REG(hw, IXGBE_MPSAR_HI(rar)); | |
950 | mpsar |= 1 << (vmdq - 32); | |
951 | IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), mpsar); | |
952 | } | |
953 | } else { | |
954 | hw_dbg(hw, "RAR index %d is out of range.\n", rar); | |
955 | } | |
956 | return 0; | |
957 | } | |
958 | ||
959 | /** | |
960 | * ixgbe_set_vfta_82599 - Set VLAN filter table | |
961 | * @hw: pointer to hardware structure | |
962 | * @vlan: VLAN id to write to VLAN filter | |
963 | * @vind: VMDq output index that maps queue to VLAN id in VFVFB | |
964 | * @vlan_on: boolean flag to turn on/off VLAN in VFVF | |
965 | * | |
966 | * Turn on/off specified VLAN in the VLAN filter table. | |
967 | **/ | |
7b25cdba DS |
968 | static s32 ixgbe_set_vfta_82599(struct ixgbe_hw *hw, u32 vlan, u32 vind, |
969 | bool vlan_on) | |
11afc1b1 PW |
970 | { |
971 | u32 regindex; | |
972 | u32 bitindex; | |
973 | u32 bits; | |
974 | u32 first_empty_slot; | |
975 | ||
976 | if (vlan > 4095) | |
977 | return IXGBE_ERR_PARAM; | |
978 | ||
979 | /* | |
980 | * this is a 2 part operation - first the VFTA, then the | |
981 | * VLVF and VLVFB if vind is set | |
982 | */ | |
983 | ||
984 | /* Part 1 | |
985 | * The VFTA is a bitstring made up of 128 32-bit registers | |
986 | * that enable the particular VLAN id, much like the MTA: | |
987 | * bits[11-5]: which register | |
988 | * bits[4-0]: which bit in the register | |
989 | */ | |
990 | regindex = (vlan >> 5) & 0x7F; | |
991 | bitindex = vlan & 0x1F; | |
992 | bits = IXGBE_READ_REG(hw, IXGBE_VFTA(regindex)); | |
993 | if (vlan_on) | |
994 | bits |= (1 << bitindex); | |
995 | else | |
996 | bits &= ~(1 << bitindex); | |
997 | IXGBE_WRITE_REG(hw, IXGBE_VFTA(regindex), bits); | |
998 | ||
999 | ||
1000 | /* Part 2 | |
1001 | * If the vind is set | |
1002 | * Either vlan_on | |
1003 | * make sure the vlan is in VLVF | |
1004 | * set the vind bit in the matching VLVFB | |
1005 | * Or !vlan_on | |
1006 | * clear the pool bit and possibly the vind | |
1007 | */ | |
1008 | if (vind) { | |
1009 | /* find the vlanid or the first empty slot */ | |
1010 | first_empty_slot = 0; | |
1011 | ||
1012 | for (regindex = 1; regindex < IXGBE_VLVF_ENTRIES; regindex++) { | |
1013 | bits = IXGBE_READ_REG(hw, IXGBE_VLVF(regindex)); | |
1014 | if (!bits && !first_empty_slot) | |
1015 | first_empty_slot = regindex; | |
1016 | else if ((bits & 0x0FFF) == vlan) | |
1017 | break; | |
1018 | } | |
1019 | ||
1020 | if (regindex >= IXGBE_VLVF_ENTRIES) { | |
1021 | if (first_empty_slot) | |
1022 | regindex = first_empty_slot; | |
1023 | else { | |
1024 | hw_dbg(hw, "No space in VLVF.\n"); | |
1025 | goto out; | |
1026 | } | |
1027 | } | |
1028 | ||
1029 | if (vlan_on) { | |
1030 | /* set the pool bit */ | |
1031 | if (vind < 32) { | |
1032 | bits = IXGBE_READ_REG(hw, | |
1033 | IXGBE_VLVFB(regindex * 2)); | |
1034 | bits |= (1 << vind); | |
1035 | IXGBE_WRITE_REG(hw, | |
1036 | IXGBE_VLVFB(regindex * 2), bits); | |
1037 | } else { | |
1038 | bits = IXGBE_READ_REG(hw, | |
1039 | IXGBE_VLVFB((regindex * 2) + 1)); | |
1040 | bits |= (1 << vind); | |
1041 | IXGBE_WRITE_REG(hw, | |
1042 | IXGBE_VLVFB((regindex * 2) + 1), bits); | |
1043 | } | |
1044 | } else { | |
1045 | /* clear the pool bit */ | |
1046 | if (vind < 32) { | |
1047 | bits = IXGBE_READ_REG(hw, | |
1048 | IXGBE_VLVFB(regindex * 2)); | |
1049 | bits &= ~(1 << vind); | |
1050 | IXGBE_WRITE_REG(hw, | |
1051 | IXGBE_VLVFB(regindex * 2), bits); | |
1052 | bits |= IXGBE_READ_REG(hw, | |
1053 | IXGBE_VLVFB((regindex * 2) + 1)); | |
1054 | } else { | |
1055 | bits = IXGBE_READ_REG(hw, | |
1056 | IXGBE_VLVFB((regindex * 2) + 1)); | |
1057 | bits &= ~(1 << vind); | |
1058 | IXGBE_WRITE_REG(hw, | |
1059 | IXGBE_VLVFB((regindex * 2) + 1), bits); | |
1060 | bits |= IXGBE_READ_REG(hw, | |
1061 | IXGBE_VLVFB(regindex * 2)); | |
1062 | } | |
1063 | } | |
1064 | ||
1065 | if (bits) | |
1066 | IXGBE_WRITE_REG(hw, IXGBE_VLVF(regindex), | |
1067 | (IXGBE_VLVF_VIEN | vlan)); | |
1068 | else | |
1069 | IXGBE_WRITE_REG(hw, IXGBE_VLVF(regindex), 0); | |
1070 | } | |
1071 | ||
1072 | out: | |
1073 | return 0; | |
1074 | } | |
1075 | ||
1076 | /** | |
1077 | * ixgbe_clear_vfta_82599 - Clear VLAN filter table | |
1078 | * @hw: pointer to hardware structure | |
1079 | * | |
1080 | * Clears the VLAN filer table, and the VMDq index associated with the filter | |
1081 | **/ | |
7b25cdba | 1082 | static s32 ixgbe_clear_vfta_82599(struct ixgbe_hw *hw) |
11afc1b1 PW |
1083 | { |
1084 | u32 offset; | |
1085 | ||
1086 | for (offset = 0; offset < hw->mac.vft_size; offset++) | |
1087 | IXGBE_WRITE_REG(hw, IXGBE_VFTA(offset), 0); | |
1088 | ||
1089 | for (offset = 0; offset < IXGBE_VLVF_ENTRIES; offset++) { | |
1090 | IXGBE_WRITE_REG(hw, IXGBE_VLVF(offset), 0); | |
1091 | IXGBE_WRITE_REG(hw, IXGBE_VLVFB(offset * 2), 0); | |
1092 | IXGBE_WRITE_REG(hw, IXGBE_VLVFB((offset * 2) + 1), 0); | |
1093 | } | |
1094 | ||
1095 | return 0; | |
1096 | } | |
1097 | ||
11afc1b1 PW |
1098 | /** |
1099 | * ixgbe_init_uta_tables_82599 - Initialize the Unicast Table Array | |
1100 | * @hw: pointer to hardware structure | |
1101 | **/ | |
7b25cdba | 1102 | static s32 ixgbe_init_uta_tables_82599(struct ixgbe_hw *hw) |
11afc1b1 PW |
1103 | { |
1104 | int i; | |
1105 | hw_dbg(hw, " Clearing UTA\n"); | |
1106 | ||
1107 | for (i = 0; i < 128; i++) | |
1108 | IXGBE_WRITE_REG(hw, IXGBE_UTA(i), 0); | |
1109 | ||
1110 | return 0; | |
1111 | } | |
1112 | ||
ffff4772 PWJ |
1113 | /** |
1114 | * ixgbe_reinit_fdir_tables_82599 - Reinitialize Flow Director tables. | |
1115 | * @hw: pointer to hardware structure | |
1116 | **/ | |
1117 | s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw) | |
1118 | { | |
1119 | int i; | |
1120 | u32 fdirctrl = IXGBE_READ_REG(hw, IXGBE_FDIRCTRL); | |
1121 | fdirctrl &= ~IXGBE_FDIRCTRL_INIT_DONE; | |
1122 | ||
1123 | /* | |
1124 | * Before starting reinitialization process, | |
1125 | * FDIRCMD.CMD must be zero. | |
1126 | */ | |
1127 | for (i = 0; i < IXGBE_FDIRCMD_CMD_POLL; i++) { | |
1128 | if (!(IXGBE_READ_REG(hw, IXGBE_FDIRCMD) & | |
1129 | IXGBE_FDIRCMD_CMD_MASK)) | |
1130 | break; | |
1131 | udelay(10); | |
1132 | } | |
1133 | if (i >= IXGBE_FDIRCMD_CMD_POLL) { | |
1134 | hw_dbg(hw ,"Flow Director previous command isn't complete, " | |
1135 | "aborting table re-initialization. \n"); | |
1136 | return IXGBE_ERR_FDIR_REINIT_FAILED; | |
1137 | } | |
1138 | ||
1139 | IXGBE_WRITE_REG(hw, IXGBE_FDIRFREE, 0); | |
1140 | IXGBE_WRITE_FLUSH(hw); | |
1141 | /* | |
1142 | * 82599 adapters flow director init flow cannot be restarted, | |
1143 | * Workaround 82599 silicon errata by performing the following steps | |
1144 | * before re-writing the FDIRCTRL control register with the same value. | |
1145 | * - write 1 to bit 8 of FDIRCMD register & | |
1146 | * - write 0 to bit 8 of FDIRCMD register | |
1147 | */ | |
1148 | IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, | |
1149 | (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) | | |
1150 | IXGBE_FDIRCMD_CLEARHT)); | |
1151 | IXGBE_WRITE_FLUSH(hw); | |
1152 | IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, | |
1153 | (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) & | |
1154 | ~IXGBE_FDIRCMD_CLEARHT)); | |
1155 | IXGBE_WRITE_FLUSH(hw); | |
1156 | /* | |
1157 | * Clear FDIR Hash register to clear any leftover hashes | |
1158 | * waiting to be programmed. | |
1159 | */ | |
1160 | IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, 0x00); | |
1161 | IXGBE_WRITE_FLUSH(hw); | |
1162 | ||
1163 | IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl); | |
1164 | IXGBE_WRITE_FLUSH(hw); | |
1165 | ||
1166 | /* Poll init-done after we write FDIRCTRL register */ | |
1167 | for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) { | |
1168 | if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) & | |
1169 | IXGBE_FDIRCTRL_INIT_DONE) | |
1170 | break; | |
1171 | udelay(10); | |
1172 | } | |
1173 | if (i >= IXGBE_FDIR_INIT_DONE_POLL) { | |
1174 | hw_dbg(hw, "Flow Director Signature poll time exceeded!\n"); | |
1175 | return IXGBE_ERR_FDIR_REINIT_FAILED; | |
1176 | } | |
1177 | ||
1178 | /* Clear FDIR statistics registers (read to clear) */ | |
1179 | IXGBE_READ_REG(hw, IXGBE_FDIRUSTAT); | |
1180 | IXGBE_READ_REG(hw, IXGBE_FDIRFSTAT); | |
1181 | IXGBE_READ_REG(hw, IXGBE_FDIRMATCH); | |
1182 | IXGBE_READ_REG(hw, IXGBE_FDIRMISS); | |
1183 | IXGBE_READ_REG(hw, IXGBE_FDIRLEN); | |
1184 | ||
1185 | return 0; | |
1186 | } | |
1187 | ||
1188 | /** | |
1189 | * ixgbe_init_fdir_signature_82599 - Initialize Flow Director signature filters | |
1190 | * @hw: pointer to hardware structure | |
1191 | * @pballoc: which mode to allocate filters with | |
1192 | **/ | |
1193 | s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 pballoc) | |
1194 | { | |
1195 | u32 fdirctrl = 0; | |
1196 | u32 pbsize; | |
1197 | int i; | |
1198 | ||
1199 | /* | |
1200 | * Before enabling Flow Director, the Rx Packet Buffer size | |
1201 | * must be reduced. The new value is the current size minus | |
1202 | * flow director memory usage size. | |
1203 | */ | |
1204 | pbsize = (1 << (IXGBE_FDIR_PBALLOC_SIZE_SHIFT + pballoc)); | |
1205 | IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(0), | |
1206 | (IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(0)) - pbsize)); | |
1207 | ||
1208 | /* | |
1209 | * The defaults in the HW for RX PB 1-7 are not zero and so should be | |
1210 | * intialized to zero for non DCB mode otherwise actual total RX PB | |
1211 | * would be bigger than programmed and filter space would run into | |
1212 | * the PB 0 region. | |
1213 | */ | |
1214 | for (i = 1; i < 8; i++) | |
1215 | IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), 0); | |
1216 | ||
1217 | /* Send interrupt when 64 filters are left */ | |
1218 | fdirctrl |= 4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT; | |
1219 | ||
1220 | /* Set the maximum length per hash bucket to 0xA filters */ | |
1221 | fdirctrl |= 0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT; | |
1222 | ||
1223 | switch (pballoc) { | |
1224 | case IXGBE_FDIR_PBALLOC_64K: | |
1225 | /* 8k - 1 signature filters */ | |
1226 | fdirctrl |= IXGBE_FDIRCTRL_PBALLOC_64K; | |
1227 | break; | |
1228 | case IXGBE_FDIR_PBALLOC_128K: | |
1229 | /* 16k - 1 signature filters */ | |
1230 | fdirctrl |= IXGBE_FDIRCTRL_PBALLOC_128K; | |
1231 | break; | |
1232 | case IXGBE_FDIR_PBALLOC_256K: | |
1233 | /* 32k - 1 signature filters */ | |
1234 | fdirctrl |= IXGBE_FDIRCTRL_PBALLOC_256K; | |
1235 | break; | |
1236 | default: | |
1237 | /* bad value */ | |
1238 | return IXGBE_ERR_CONFIG; | |
1239 | }; | |
1240 | ||
1241 | /* Move the flexible bytes to use the ethertype - shift 6 words */ | |
1242 | fdirctrl |= (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT); | |
1243 | ||
1244 | fdirctrl |= IXGBE_FDIRCTRL_REPORT_STATUS; | |
1245 | ||
1246 | /* Prime the keys for hashing */ | |
1247 | IXGBE_WRITE_REG(hw, IXGBE_FDIRHKEY, | |
1248 | htonl(IXGBE_ATR_BUCKET_HASH_KEY)); | |
1249 | IXGBE_WRITE_REG(hw, IXGBE_FDIRSKEY, | |
1250 | htonl(IXGBE_ATR_SIGNATURE_HASH_KEY)); | |
1251 | ||
1252 | /* | |
1253 | * Poll init-done after we write the register. Estimated times: | |
1254 | * 10G: PBALLOC = 11b, timing is 60us | |
1255 | * 1G: PBALLOC = 11b, timing is 600us | |
1256 | * 100M: PBALLOC = 11b, timing is 6ms | |
1257 | * | |
1258 | * Multiple these timings by 4 if under full Rx load | |
1259 | * | |
1260 | * So we'll poll for IXGBE_FDIR_INIT_DONE_POLL times, sleeping for | |
1261 | * 1 msec per poll time. If we're at line rate and drop to 100M, then | |
1262 | * this might not finish in our poll time, but we can live with that | |
1263 | * for now. | |
1264 | */ | |
1265 | IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl); | |
1266 | IXGBE_WRITE_FLUSH(hw); | |
1267 | for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) { | |
1268 | if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) & | |
1269 | IXGBE_FDIRCTRL_INIT_DONE) | |
1270 | break; | |
1271 | msleep(1); | |
1272 | } | |
1273 | if (i >= IXGBE_FDIR_INIT_DONE_POLL) | |
1274 | hw_dbg(hw, "Flow Director Signature poll time exceeded!\n"); | |
1275 | ||
1276 | return 0; | |
1277 | } | |
1278 | ||
1279 | /** | |
1280 | * ixgbe_init_fdir_perfect_82599 - Initialize Flow Director perfect filters | |
1281 | * @hw: pointer to hardware structure | |
1282 | * @pballoc: which mode to allocate filters with | |
1283 | **/ | |
1284 | s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 pballoc) | |
1285 | { | |
1286 | u32 fdirctrl = 0; | |
1287 | u32 pbsize; | |
1288 | int i; | |
1289 | ||
1290 | /* | |
1291 | * Before enabling Flow Director, the Rx Packet Buffer size | |
1292 | * must be reduced. The new value is the current size minus | |
1293 | * flow director memory usage size. | |
1294 | */ | |
1295 | pbsize = (1 << (IXGBE_FDIR_PBALLOC_SIZE_SHIFT + pballoc)); | |
1296 | IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(0), | |
1297 | (IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(0)) - pbsize)); | |
1298 | ||
1299 | /* | |
1300 | * The defaults in the HW for RX PB 1-7 are not zero and so should be | |
1301 | * intialized to zero for non DCB mode otherwise actual total RX PB | |
1302 | * would be bigger than programmed and filter space would run into | |
1303 | * the PB 0 region. | |
1304 | */ | |
1305 | for (i = 1; i < 8; i++) | |
1306 | IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), 0); | |
1307 | ||
1308 | /* Send interrupt when 64 filters are left */ | |
1309 | fdirctrl |= 4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT; | |
1310 | ||
1311 | switch (pballoc) { | |
1312 | case IXGBE_FDIR_PBALLOC_64K: | |
1313 | /* 2k - 1 perfect filters */ | |
1314 | fdirctrl |= IXGBE_FDIRCTRL_PBALLOC_64K; | |
1315 | break; | |
1316 | case IXGBE_FDIR_PBALLOC_128K: | |
1317 | /* 4k - 1 perfect filters */ | |
1318 | fdirctrl |= IXGBE_FDIRCTRL_PBALLOC_128K; | |
1319 | break; | |
1320 | case IXGBE_FDIR_PBALLOC_256K: | |
1321 | /* 8k - 1 perfect filters */ | |
1322 | fdirctrl |= IXGBE_FDIRCTRL_PBALLOC_256K; | |
1323 | break; | |
1324 | default: | |
1325 | /* bad value */ | |
1326 | return IXGBE_ERR_CONFIG; | |
1327 | }; | |
1328 | ||
1329 | /* Turn perfect match filtering on */ | |
1330 | fdirctrl |= IXGBE_FDIRCTRL_PERFECT_MATCH; | |
1331 | fdirctrl |= IXGBE_FDIRCTRL_REPORT_STATUS; | |
1332 | ||
1333 | /* Move the flexible bytes to use the ethertype - shift 6 words */ | |
1334 | fdirctrl |= (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT); | |
1335 | ||
1336 | /* Prime the keys for hashing */ | |
1337 | IXGBE_WRITE_REG(hw, IXGBE_FDIRHKEY, | |
1338 | htonl(IXGBE_ATR_BUCKET_HASH_KEY)); | |
1339 | IXGBE_WRITE_REG(hw, IXGBE_FDIRSKEY, | |
1340 | htonl(IXGBE_ATR_SIGNATURE_HASH_KEY)); | |
1341 | ||
1342 | /* | |
1343 | * Poll init-done after we write the register. Estimated times: | |
1344 | * 10G: PBALLOC = 11b, timing is 60us | |
1345 | * 1G: PBALLOC = 11b, timing is 600us | |
1346 | * 100M: PBALLOC = 11b, timing is 6ms | |
1347 | * | |
1348 | * Multiple these timings by 4 if under full Rx load | |
1349 | * | |
1350 | * So we'll poll for IXGBE_FDIR_INIT_DONE_POLL times, sleeping for | |
1351 | * 1 msec per poll time. If we're at line rate and drop to 100M, then | |
1352 | * this might not finish in our poll time, but we can live with that | |
1353 | * for now. | |
1354 | */ | |
1355 | ||
1356 | /* Set the maximum length per hash bucket to 0xA filters */ | |
1357 | fdirctrl |= (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT); | |
1358 | ||
1359 | IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl); | |
1360 | IXGBE_WRITE_FLUSH(hw); | |
1361 | for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) { | |
1362 | if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) & | |
1363 | IXGBE_FDIRCTRL_INIT_DONE) | |
1364 | break; | |
1365 | msleep(1); | |
1366 | } | |
1367 | if (i >= IXGBE_FDIR_INIT_DONE_POLL) | |
1368 | hw_dbg(hw, "Flow Director Perfect poll time exceeded!\n"); | |
1369 | ||
1370 | return 0; | |
1371 | } | |
1372 | ||
1373 | ||
1374 | /** | |
1375 | * ixgbe_atr_compute_hash_82599 - Compute the hashes for SW ATR | |
1376 | * @stream: input bitstream to compute the hash on | |
1377 | * @key: 32-bit hash key | |
1378 | **/ | |
7b25cdba DS |
1379 | static u16 ixgbe_atr_compute_hash_82599(struct ixgbe_atr_input *atr_input, |
1380 | u32 key) | |
ffff4772 PWJ |
1381 | { |
1382 | /* | |
1383 | * The algorithm is as follows: | |
1384 | * Hash[15:0] = Sum { S[n] x K[n+16] }, n = 0...350 | |
1385 | * where Sum {A[n]}, n = 0...n is bitwise XOR of A[0], A[1]...A[n] | |
1386 | * and A[n] x B[n] is bitwise AND between same length strings | |
1387 | * | |
1388 | * K[n] is 16 bits, defined as: | |
1389 | * for n modulo 32 >= 15, K[n] = K[n % 32 : (n % 32) - 15] | |
1390 | * for n modulo 32 < 15, K[n] = | |
1391 | * K[(n % 32:0) | (31:31 - (14 - (n % 32)))] | |
1392 | * | |
1393 | * S[n] is 16 bits, defined as: | |
1394 | * for n >= 15, S[n] = S[n:n - 15] | |
1395 | * for n < 15, S[n] = S[(n:0) | (350:350 - (14 - n))] | |
1396 | * | |
1397 | * To simplify for programming, the algorithm is implemented | |
1398 | * in software this way: | |
1399 | * | |
1400 | * Key[31:0], Stream[335:0] | |
1401 | * | |
1402 | * tmp_key[11 * 32 - 1:0] = 11{Key[31:0] = key concatenated 11 times | |
1403 | * int_key[350:0] = tmp_key[351:1] | |
1404 | * int_stream[365:0] = Stream[14:0] | Stream[335:0] | Stream[335:321] | |
1405 | * | |
1406 | * hash[15:0] = 0; | |
1407 | * for (i = 0; i < 351; i++) { | |
1408 | * if (int_key[i]) | |
1409 | * hash ^= int_stream[(i + 15):i]; | |
1410 | * } | |
1411 | */ | |
1412 | ||
1413 | union { | |
1414 | u64 fill[6]; | |
1415 | u32 key[11]; | |
1416 | u8 key_stream[44]; | |
1417 | } tmp_key; | |
1418 | ||
1419 | u8 *stream = (u8 *)atr_input; | |
1420 | u8 int_key[44]; /* upper-most bit unused */ | |
1421 | u8 hash_str[46]; /* upper-most 2 bits unused */ | |
1422 | u16 hash_result = 0; | |
1423 | int i, j, k, h; | |
1424 | ||
1425 | /* | |
1426 | * Initialize the fill member to prevent warnings | |
1427 | * on some compilers | |
1428 | */ | |
1429 | tmp_key.fill[0] = 0; | |
1430 | ||
1431 | /* First load the temporary key stream */ | |
1432 | for (i = 0; i < 6; i++) { | |
1433 | u64 fillkey = ((u64)key << 32) | key; | |
1434 | tmp_key.fill[i] = fillkey; | |
1435 | } | |
1436 | ||
1437 | /* | |
1438 | * Set the interim key for the hashing. Bit 352 is unused, so we must | |
1439 | * shift and compensate when building the key. | |
1440 | */ | |
1441 | ||
1442 | int_key[0] = tmp_key.key_stream[0] >> 1; | |
1443 | for (i = 1, j = 0; i < 44; i++) { | |
1444 | unsigned int this_key = tmp_key.key_stream[j] << 7; | |
1445 | j++; | |
1446 | int_key[i] = (u8)(this_key | (tmp_key.key_stream[j] >> 1)); | |
1447 | } | |
1448 | ||
1449 | /* | |
1450 | * Set the interim bit string for the hashing. Bits 368 and 367 are | |
1451 | * unused, so shift and compensate when building the string. | |
1452 | */ | |
1453 | hash_str[0] = (stream[40] & 0x7f) >> 1; | |
1454 | for (i = 1, j = 40; i < 46; i++) { | |
1455 | unsigned int this_str = stream[j] << 7; | |
1456 | j++; | |
1457 | if (j > 41) | |
1458 | j = 0; | |
1459 | hash_str[i] = (u8)(this_str | (stream[j] >> 1)); | |
1460 | } | |
1461 | ||
1462 | /* | |
1463 | * Now compute the hash. i is the index into hash_str, j is into our | |
1464 | * key stream, k is counting the number of bits, and h interates within | |
1465 | * each byte. | |
1466 | */ | |
1467 | for (i = 45, j = 43, k = 0; k < 351 && i >= 2 && j >= 0; i--, j--) { | |
1468 | for (h = 0; h < 8 && k < 351; h++, k++) { | |
1469 | if (int_key[j] & (1 << h)) { | |
1470 | /* | |
1471 | * Key bit is set, XOR in the current 16-bit | |
1472 | * string. Example of processing: | |
1473 | * h = 0, | |
1474 | * tmp = (hash_str[i - 2] & 0 << 16) | | |
1475 | * (hash_str[i - 1] & 0xff << 8) | | |
1476 | * (hash_str[i] & 0xff >> 0) | |
1477 | * So tmp = hash_str[15 + k:k], since the | |
1478 | * i + 2 clause rolls off the 16-bit value | |
1479 | * h = 7, | |
1480 | * tmp = (hash_str[i - 2] & 0x7f << 9) | | |
1481 | * (hash_str[i - 1] & 0xff << 1) | | |
1482 | * (hash_str[i] & 0x80 >> 7) | |
1483 | */ | |
1484 | int tmp = (hash_str[i] >> h); | |
1485 | tmp |= (hash_str[i - 1] << (8 - h)); | |
1486 | tmp |= (int)(hash_str[i - 2] & ((1 << h) - 1)) | |
1487 | << (16 - h); | |
1488 | hash_result ^= (u16)tmp; | |
1489 | } | |
1490 | } | |
1491 | } | |
1492 | ||
1493 | return hash_result; | |
1494 | } | |
1495 | ||
1496 | /** | |
1497 | * ixgbe_atr_set_vlan_id_82599 - Sets the VLAN id in the ATR input stream | |
1498 | * @input: input stream to modify | |
1499 | * @vlan: the VLAN id to load | |
1500 | **/ | |
1501 | s32 ixgbe_atr_set_vlan_id_82599(struct ixgbe_atr_input *input, u16 vlan) | |
1502 | { | |
1503 | input->byte_stream[IXGBE_ATR_VLAN_OFFSET + 1] = vlan >> 8; | |
1504 | input->byte_stream[IXGBE_ATR_VLAN_OFFSET] = vlan & 0xff; | |
1505 | ||
1506 | return 0; | |
1507 | } | |
1508 | ||
1509 | /** | |
1510 | * ixgbe_atr_set_src_ipv4_82599 - Sets the source IPv4 address | |
1511 | * @input: input stream to modify | |
1512 | * @src_addr: the IP address to load | |
1513 | **/ | |
1514 | s32 ixgbe_atr_set_src_ipv4_82599(struct ixgbe_atr_input *input, u32 src_addr) | |
1515 | { | |
1516 | input->byte_stream[IXGBE_ATR_SRC_IPV4_OFFSET + 3] = src_addr >> 24; | |
1517 | input->byte_stream[IXGBE_ATR_SRC_IPV4_OFFSET + 2] = | |
1518 | (src_addr >> 16) & 0xff; | |
1519 | input->byte_stream[IXGBE_ATR_SRC_IPV4_OFFSET + 1] = | |
1520 | (src_addr >> 8) & 0xff; | |
1521 | input->byte_stream[IXGBE_ATR_SRC_IPV4_OFFSET] = src_addr & 0xff; | |
1522 | ||
1523 | return 0; | |
1524 | } | |
1525 | ||
1526 | /** | |
1527 | * ixgbe_atr_set_dst_ipv4_82599 - Sets the destination IPv4 address | |
1528 | * @input: input stream to modify | |
1529 | * @dst_addr: the IP address to load | |
1530 | **/ | |
1531 | s32 ixgbe_atr_set_dst_ipv4_82599(struct ixgbe_atr_input *input, u32 dst_addr) | |
1532 | { | |
1533 | input->byte_stream[IXGBE_ATR_DST_IPV4_OFFSET + 3] = dst_addr >> 24; | |
1534 | input->byte_stream[IXGBE_ATR_DST_IPV4_OFFSET + 2] = | |
1535 | (dst_addr >> 16) & 0xff; | |
1536 | input->byte_stream[IXGBE_ATR_DST_IPV4_OFFSET + 1] = | |
1537 | (dst_addr >> 8) & 0xff; | |
1538 | input->byte_stream[IXGBE_ATR_DST_IPV4_OFFSET] = dst_addr & 0xff; | |
1539 | ||
1540 | return 0; | |
1541 | } | |
1542 | ||
1543 | /** | |
1544 | * ixgbe_atr_set_src_ipv6_82599 - Sets the source IPv6 address | |
1545 | * @input: input stream to modify | |
1546 | * @src_addr_1: the first 4 bytes of the IP address to load | |
1547 | * @src_addr_2: the second 4 bytes of the IP address to load | |
1548 | * @src_addr_3: the third 4 bytes of the IP address to load | |
1549 | * @src_addr_4: the fourth 4 bytes of the IP address to load | |
1550 | **/ | |
1551 | s32 ixgbe_atr_set_src_ipv6_82599(struct ixgbe_atr_input *input, | |
7b25cdba DS |
1552 | u32 src_addr_1, u32 src_addr_2, |
1553 | u32 src_addr_3, u32 src_addr_4) | |
ffff4772 PWJ |
1554 | { |
1555 | input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET] = src_addr_4 & 0xff; | |
1556 | input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET + 1] = | |
1557 | (src_addr_4 >> 8) & 0xff; | |
1558 | input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET + 2] = | |
1559 | (src_addr_4 >> 16) & 0xff; | |
1560 | input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET + 3] = src_addr_4 >> 24; | |
1561 | ||
1562 | input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET + 4] = src_addr_3 & 0xff; | |
1563 | input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET + 5] = | |
1564 | (src_addr_3 >> 8) & 0xff; | |
1565 | input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET + 6] = | |
1566 | (src_addr_3 >> 16) & 0xff; | |
1567 | input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET + 7] = src_addr_3 >> 24; | |
1568 | ||
1569 | input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET + 8] = src_addr_2 & 0xff; | |
1570 | input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET + 9] = | |
1571 | (src_addr_2 >> 8) & 0xff; | |
1572 | input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET + 10] = | |
1573 | (src_addr_2 >> 16) & 0xff; | |
1574 | input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET + 11] = src_addr_2 >> 24; | |
1575 | ||
1576 | input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET + 12] = src_addr_1 & 0xff; | |
1577 | input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET + 13] = | |
1578 | (src_addr_1 >> 8) & 0xff; | |
1579 | input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET + 14] = | |
1580 | (src_addr_1 >> 16) & 0xff; | |
1581 | input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET + 15] = src_addr_1 >> 24; | |
1582 | ||
1583 | return 0; | |
1584 | } | |
1585 | ||
1586 | /** | |
1587 | * ixgbe_atr_set_dst_ipv6_82599 - Sets the destination IPv6 address | |
1588 | * @input: input stream to modify | |
1589 | * @dst_addr_1: the first 4 bytes of the IP address to load | |
1590 | * @dst_addr_2: the second 4 bytes of the IP address to load | |
1591 | * @dst_addr_3: the third 4 bytes of the IP address to load | |
1592 | * @dst_addr_4: the fourth 4 bytes of the IP address to load | |
1593 | **/ | |
1594 | s32 ixgbe_atr_set_dst_ipv6_82599(struct ixgbe_atr_input *input, | |
7b25cdba DS |
1595 | u32 dst_addr_1, u32 dst_addr_2, |
1596 | u32 dst_addr_3, u32 dst_addr_4) | |
ffff4772 PWJ |
1597 | { |
1598 | input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET] = dst_addr_4 & 0xff; | |
1599 | input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET + 1] = | |
1600 | (dst_addr_4 >> 8) & 0xff; | |
1601 | input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET + 2] = | |
1602 | (dst_addr_4 >> 16) & 0xff; | |
1603 | input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET + 3] = dst_addr_4 >> 24; | |
1604 | ||
1605 | input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET + 4] = dst_addr_3 & 0xff; | |
1606 | input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET + 5] = | |
1607 | (dst_addr_3 >> 8) & 0xff; | |
1608 | input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET + 6] = | |
1609 | (dst_addr_3 >> 16) & 0xff; | |
1610 | input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET + 7] = dst_addr_3 >> 24; | |
1611 | ||
1612 | input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET + 8] = dst_addr_2 & 0xff; | |
1613 | input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET + 9] = | |
1614 | (dst_addr_2 >> 8) & 0xff; | |
1615 | input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET + 10] = | |
1616 | (dst_addr_2 >> 16) & 0xff; | |
1617 | input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET + 11] = dst_addr_2 >> 24; | |
1618 | ||
1619 | input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET + 12] = dst_addr_1 & 0xff; | |
1620 | input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET + 13] = | |
1621 | (dst_addr_1 >> 8) & 0xff; | |
1622 | input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET + 14] = | |
1623 | (dst_addr_1 >> 16) & 0xff; | |
1624 | input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET + 15] = dst_addr_1 >> 24; | |
1625 | ||
1626 | return 0; | |
1627 | } | |
1628 | ||
1629 | /** | |
1630 | * ixgbe_atr_set_src_port_82599 - Sets the source port | |
1631 | * @input: input stream to modify | |
1632 | * @src_port: the source port to load | |
1633 | **/ | |
1634 | s32 ixgbe_atr_set_src_port_82599(struct ixgbe_atr_input *input, u16 src_port) | |
1635 | { | |
1636 | input->byte_stream[IXGBE_ATR_SRC_PORT_OFFSET + 1] = src_port >> 8; | |
1637 | input->byte_stream[IXGBE_ATR_SRC_PORT_OFFSET] = src_port & 0xff; | |
1638 | ||
1639 | return 0; | |
1640 | } | |
1641 | ||
1642 | /** | |
1643 | * ixgbe_atr_set_dst_port_82599 - Sets the destination port | |
1644 | * @input: input stream to modify | |
1645 | * @dst_port: the destination port to load | |
1646 | **/ | |
1647 | s32 ixgbe_atr_set_dst_port_82599(struct ixgbe_atr_input *input, u16 dst_port) | |
1648 | { | |
1649 | input->byte_stream[IXGBE_ATR_DST_PORT_OFFSET + 1] = dst_port >> 8; | |
1650 | input->byte_stream[IXGBE_ATR_DST_PORT_OFFSET] = dst_port & 0xff; | |
1651 | ||
1652 | return 0; | |
1653 | } | |
1654 | ||
1655 | /** | |
1656 | * ixgbe_atr_set_flex_byte_82599 - Sets the flexible bytes | |
1657 | * @input: input stream to modify | |
1658 | * @flex_bytes: the flexible bytes to load | |
1659 | **/ | |
1660 | s32 ixgbe_atr_set_flex_byte_82599(struct ixgbe_atr_input *input, u16 flex_byte) | |
1661 | { | |
1662 | input->byte_stream[IXGBE_ATR_FLEX_BYTE_OFFSET + 1] = flex_byte >> 8; | |
1663 | input->byte_stream[IXGBE_ATR_FLEX_BYTE_OFFSET] = flex_byte & 0xff; | |
1664 | ||
1665 | return 0; | |
1666 | } | |
1667 | ||
1668 | /** | |
1669 | * ixgbe_atr_set_vm_pool_82599 - Sets the Virtual Machine pool | |
1670 | * @input: input stream to modify | |
1671 | * @vm_pool: the Virtual Machine pool to load | |
1672 | **/ | |
7b25cdba DS |
1673 | s32 ixgbe_atr_set_vm_pool_82599(struct ixgbe_atr_input *input, |
1674 | u8 vm_pool) | |
ffff4772 PWJ |
1675 | { |
1676 | input->byte_stream[IXGBE_ATR_VM_POOL_OFFSET] = vm_pool; | |
1677 | ||
1678 | return 0; | |
1679 | } | |
1680 | ||
1681 | /** | |
1682 | * ixgbe_atr_set_l4type_82599 - Sets the layer 4 packet type | |
1683 | * @input: input stream to modify | |
1684 | * @l4type: the layer 4 type value to load | |
1685 | **/ | |
1686 | s32 ixgbe_atr_set_l4type_82599(struct ixgbe_atr_input *input, u8 l4type) | |
1687 | { | |
1688 | input->byte_stream[IXGBE_ATR_L4TYPE_OFFSET] = l4type; | |
1689 | ||
1690 | return 0; | |
1691 | } | |
1692 | ||
1693 | /** | |
1694 | * ixgbe_atr_get_vlan_id_82599 - Gets the VLAN id from the ATR input stream | |
1695 | * @input: input stream to search | |
1696 | * @vlan: the VLAN id to load | |
1697 | **/ | |
7b25cdba DS |
1698 | static s32 ixgbe_atr_get_vlan_id_82599(struct ixgbe_atr_input *input, |
1699 | u16 *vlan) | |
ffff4772 PWJ |
1700 | { |
1701 | *vlan = input->byte_stream[IXGBE_ATR_VLAN_OFFSET]; | |
1702 | *vlan |= input->byte_stream[IXGBE_ATR_VLAN_OFFSET + 1] << 8; | |
1703 | ||
1704 | return 0; | |
1705 | } | |
1706 | ||
1707 | /** | |
1708 | * ixgbe_atr_get_src_ipv4_82599 - Gets the source IPv4 address | |
1709 | * @input: input stream to search | |
1710 | * @src_addr: the IP address to load | |
1711 | **/ | |
7b25cdba DS |
1712 | static s32 ixgbe_atr_get_src_ipv4_82599(struct ixgbe_atr_input *input, |
1713 | u32 *src_addr) | |
ffff4772 PWJ |
1714 | { |
1715 | *src_addr = input->byte_stream[IXGBE_ATR_SRC_IPV4_OFFSET]; | |
1716 | *src_addr |= input->byte_stream[IXGBE_ATR_SRC_IPV4_OFFSET + 1] << 8; | |
1717 | *src_addr |= input->byte_stream[IXGBE_ATR_SRC_IPV4_OFFSET + 2] << 16; | |
1718 | *src_addr |= input->byte_stream[IXGBE_ATR_SRC_IPV4_OFFSET + 3] << 24; | |
1719 | ||
1720 | return 0; | |
1721 | } | |
1722 | ||
1723 | /** | |
1724 | * ixgbe_atr_get_dst_ipv4_82599 - Gets the destination IPv4 address | |
1725 | * @input: input stream to search | |
1726 | * @dst_addr: the IP address to load | |
1727 | **/ | |
7b25cdba DS |
1728 | static s32 ixgbe_atr_get_dst_ipv4_82599(struct ixgbe_atr_input *input, |
1729 | u32 *dst_addr) | |
ffff4772 PWJ |
1730 | { |
1731 | *dst_addr = input->byte_stream[IXGBE_ATR_DST_IPV4_OFFSET]; | |
1732 | *dst_addr |= input->byte_stream[IXGBE_ATR_DST_IPV4_OFFSET + 1] << 8; | |
1733 | *dst_addr |= input->byte_stream[IXGBE_ATR_DST_IPV4_OFFSET + 2] << 16; | |
1734 | *dst_addr |= input->byte_stream[IXGBE_ATR_DST_IPV4_OFFSET + 3] << 24; | |
1735 | ||
1736 | return 0; | |
1737 | } | |
1738 | ||
1739 | /** | |
1740 | * ixgbe_atr_get_src_ipv6_82599 - Gets the source IPv6 address | |
1741 | * @input: input stream to search | |
1742 | * @src_addr_1: the first 4 bytes of the IP address to load | |
1743 | * @src_addr_2: the second 4 bytes of the IP address to load | |
1744 | * @src_addr_3: the third 4 bytes of the IP address to load | |
1745 | * @src_addr_4: the fourth 4 bytes of the IP address to load | |
1746 | **/ | |
7b25cdba DS |
1747 | static s32 ixgbe_atr_get_src_ipv6_82599(struct ixgbe_atr_input *input, |
1748 | u32 *src_addr_1, u32 *src_addr_2, | |
1749 | u32 *src_addr_3, u32 *src_addr_4) | |
ffff4772 PWJ |
1750 | { |
1751 | *src_addr_1 = input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET + 12]; | |
1752 | *src_addr_1 = input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET + 13] << 8; | |
1753 | *src_addr_1 = input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET + 14] << 16; | |
1754 | *src_addr_1 = input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET + 15] << 24; | |
1755 | ||
1756 | *src_addr_2 = input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET + 8]; | |
1757 | *src_addr_2 = input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET + 9] << 8; | |
1758 | *src_addr_2 = input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET + 10] << 16; | |
1759 | *src_addr_2 = input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET + 11] << 24; | |
1760 | ||
1761 | *src_addr_3 = input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET + 4]; | |
1762 | *src_addr_3 = input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET + 5] << 8; | |
1763 | *src_addr_3 = input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET + 6] << 16; | |
1764 | *src_addr_3 = input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET + 7] << 24; | |
1765 | ||
1766 | *src_addr_4 = input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET]; | |
1767 | *src_addr_4 = input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET + 1] << 8; | |
1768 | *src_addr_4 = input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET + 2] << 16; | |
1769 | *src_addr_4 = input->byte_stream[IXGBE_ATR_SRC_IPV6_OFFSET + 3] << 24; | |
1770 | ||
1771 | return 0; | |
1772 | } | |
1773 | ||
1774 | /** | |
1775 | * ixgbe_atr_get_dst_ipv6_82599 - Gets the destination IPv6 address | |
1776 | * @input: input stream to search | |
1777 | * @dst_addr_1: the first 4 bytes of the IP address to load | |
1778 | * @dst_addr_2: the second 4 bytes of the IP address to load | |
1779 | * @dst_addr_3: the third 4 bytes of the IP address to load | |
1780 | * @dst_addr_4: the fourth 4 bytes of the IP address to load | |
1781 | **/ | |
1782 | s32 ixgbe_atr_get_dst_ipv6_82599(struct ixgbe_atr_input *input, | |
7b25cdba DS |
1783 | u32 *dst_addr_1, u32 *dst_addr_2, |
1784 | u32 *dst_addr_3, u32 *dst_addr_4) | |
ffff4772 PWJ |
1785 | { |
1786 | *dst_addr_1 = input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET + 12]; | |
1787 | *dst_addr_1 = input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET + 13] << 8; | |
1788 | *dst_addr_1 = input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET + 14] << 16; | |
1789 | *dst_addr_1 = input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET + 15] << 24; | |
1790 | ||
1791 | *dst_addr_2 = input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET + 8]; | |
1792 | *dst_addr_2 = input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET + 9] << 8; | |
1793 | *dst_addr_2 = input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET + 10] << 16; | |
1794 | *dst_addr_2 = input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET + 11] << 24; | |
1795 | ||
1796 | *dst_addr_3 = input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET + 4]; | |
1797 | *dst_addr_3 = input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET + 5] << 8; | |
1798 | *dst_addr_3 = input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET + 6] << 16; | |
1799 | *dst_addr_3 = input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET + 7] << 24; | |
1800 | ||
1801 | *dst_addr_4 = input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET]; | |
1802 | *dst_addr_4 = input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET + 1] << 8; | |
1803 | *dst_addr_4 = input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET + 2] << 16; | |
1804 | *dst_addr_4 = input->byte_stream[IXGBE_ATR_DST_IPV6_OFFSET + 3] << 24; | |
1805 | ||
1806 | return 0; | |
1807 | } | |
1808 | ||
1809 | /** | |
1810 | * ixgbe_atr_get_src_port_82599 - Gets the source port | |
1811 | * @input: input stream to modify | |
1812 | * @src_port: the source port to load | |
1813 | * | |
1814 | * Even though the input is given in big-endian, the FDIRPORT registers | |
1815 | * expect the ports to be programmed in little-endian. Hence the need to swap | |
1816 | * endianness when retrieving the data. This can be confusing since the | |
1817 | * internal hash engine expects it to be big-endian. | |
1818 | **/ | |
7b25cdba DS |
1819 | static s32 ixgbe_atr_get_src_port_82599(struct ixgbe_atr_input *input, |
1820 | u16 *src_port) | |
ffff4772 PWJ |
1821 | { |
1822 | *src_port = input->byte_stream[IXGBE_ATR_SRC_PORT_OFFSET] << 8; | |
1823 | *src_port |= input->byte_stream[IXGBE_ATR_SRC_PORT_OFFSET + 1]; | |
1824 | ||
1825 | return 0; | |
1826 | } | |
1827 | ||
1828 | /** | |
1829 | * ixgbe_atr_get_dst_port_82599 - Gets the destination port | |
1830 | * @input: input stream to modify | |
1831 | * @dst_port: the destination port to load | |
1832 | * | |
1833 | * Even though the input is given in big-endian, the FDIRPORT registers | |
1834 | * expect the ports to be programmed in little-endian. Hence the need to swap | |
1835 | * endianness when retrieving the data. This can be confusing since the | |
1836 | * internal hash engine expects it to be big-endian. | |
1837 | **/ | |
7b25cdba DS |
1838 | static s32 ixgbe_atr_get_dst_port_82599(struct ixgbe_atr_input *input, |
1839 | u16 *dst_port) | |
ffff4772 PWJ |
1840 | { |
1841 | *dst_port = input->byte_stream[IXGBE_ATR_DST_PORT_OFFSET] << 8; | |
1842 | *dst_port |= input->byte_stream[IXGBE_ATR_DST_PORT_OFFSET + 1]; | |
1843 | ||
1844 | return 0; | |
1845 | } | |
1846 | ||
1847 | /** | |
1848 | * ixgbe_atr_get_flex_byte_82599 - Gets the flexible bytes | |
1849 | * @input: input stream to modify | |
1850 | * @flex_bytes: the flexible bytes to load | |
1851 | **/ | |
7b25cdba DS |
1852 | static s32 ixgbe_atr_get_flex_byte_82599(struct ixgbe_atr_input *input, |
1853 | u16 *flex_byte) | |
ffff4772 PWJ |
1854 | { |
1855 | *flex_byte = input->byte_stream[IXGBE_ATR_FLEX_BYTE_OFFSET]; | |
1856 | *flex_byte |= input->byte_stream[IXGBE_ATR_FLEX_BYTE_OFFSET + 1] << 8; | |
1857 | ||
1858 | return 0; | |
1859 | } | |
1860 | ||
1861 | /** | |
1862 | * ixgbe_atr_get_vm_pool_82599 - Gets the Virtual Machine pool | |
1863 | * @input: input stream to modify | |
1864 | * @vm_pool: the Virtual Machine pool to load | |
1865 | **/ | |
7b25cdba DS |
1866 | s32 ixgbe_atr_get_vm_pool_82599(struct ixgbe_atr_input *input, |
1867 | u8 *vm_pool) | |
ffff4772 PWJ |
1868 | { |
1869 | *vm_pool = input->byte_stream[IXGBE_ATR_VM_POOL_OFFSET]; | |
1870 | ||
1871 | return 0; | |
1872 | } | |
1873 | ||
1874 | /** | |
1875 | * ixgbe_atr_get_l4type_82599 - Gets the layer 4 packet type | |
1876 | * @input: input stream to modify | |
1877 | * @l4type: the layer 4 type value to load | |
1878 | **/ | |
7b25cdba DS |
1879 | static s32 ixgbe_atr_get_l4type_82599(struct ixgbe_atr_input *input, |
1880 | u8 *l4type) | |
ffff4772 PWJ |
1881 | { |
1882 | *l4type = input->byte_stream[IXGBE_ATR_L4TYPE_OFFSET]; | |
1883 | ||
1884 | return 0; | |
1885 | } | |
1886 | ||
1887 | /** | |
1888 | * ixgbe_atr_add_signature_filter_82599 - Adds a signature hash filter | |
1889 | * @hw: pointer to hardware structure | |
1890 | * @stream: input bitstream | |
1891 | * @queue: queue index to direct traffic to | |
1892 | **/ | |
1893 | s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw, | |
1894 | struct ixgbe_atr_input *input, | |
1895 | u8 queue) | |
1896 | { | |
1897 | u64 fdirhashcmd; | |
1898 | u64 fdircmd; | |
1899 | u32 fdirhash; | |
1900 | u16 bucket_hash, sig_hash; | |
1901 | u8 l4type; | |
1902 | ||
1903 | bucket_hash = ixgbe_atr_compute_hash_82599(input, | |
1904 | IXGBE_ATR_BUCKET_HASH_KEY); | |
1905 | ||
1906 | /* bucket_hash is only 15 bits */ | |
1907 | bucket_hash &= IXGBE_ATR_HASH_MASK; | |
1908 | ||
1909 | sig_hash = ixgbe_atr_compute_hash_82599(input, | |
1910 | IXGBE_ATR_SIGNATURE_HASH_KEY); | |
1911 | ||
1912 | /* Get the l4type in order to program FDIRCMD properly */ | |
1913 | /* lowest 2 bits are FDIRCMD.L4TYPE, third lowest bit is FDIRCMD.IPV6 */ | |
1914 | ixgbe_atr_get_l4type_82599(input, &l4type); | |
1915 | ||
1916 | /* | |
1917 | * The lower 32-bits of fdirhashcmd is for FDIRHASH, the upper 32-bits | |
1918 | * is for FDIRCMD. Then do a 64-bit register write from FDIRHASH. | |
1919 | */ | |
1920 | fdirhash = sig_hash << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT | bucket_hash; | |
1921 | ||
1922 | fdircmd = (IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE | | |
1923 | IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN); | |
1924 | ||
1925 | switch (l4type & IXGBE_ATR_L4TYPE_MASK) { | |
1926 | case IXGBE_ATR_L4TYPE_TCP: | |
1927 | fdircmd |= IXGBE_FDIRCMD_L4TYPE_TCP; | |
1928 | break; | |
1929 | case IXGBE_ATR_L4TYPE_UDP: | |
1930 | fdircmd |= IXGBE_FDIRCMD_L4TYPE_UDP; | |
1931 | break; | |
1932 | case IXGBE_ATR_L4TYPE_SCTP: | |
1933 | fdircmd |= IXGBE_FDIRCMD_L4TYPE_SCTP; | |
1934 | break; | |
1935 | default: | |
1936 | hw_dbg(hw, "Error on l4type input\n"); | |
1937 | return IXGBE_ERR_CONFIG; | |
1938 | } | |
1939 | ||
1940 | if (l4type & IXGBE_ATR_L4TYPE_IPV6_MASK) | |
1941 | fdircmd |= IXGBE_FDIRCMD_IPV6; | |
1942 | ||
1943 | fdircmd |= ((u64)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT); | |
1944 | fdirhashcmd = ((fdircmd << 32) | fdirhash); | |
1945 | ||
1946 | IXGBE_WRITE_REG64(hw, IXGBE_FDIRHASH, fdirhashcmd); | |
1947 | ||
1948 | return 0; | |
1949 | } | |
1950 | ||
1951 | /** | |
1952 | * ixgbe_fdir_add_perfect_filter_82599 - Adds a perfect filter | |
1953 | * @hw: pointer to hardware structure | |
1954 | * @input: input bitstream | |
1955 | * @queue: queue index to direct traffic to | |
1956 | * | |
1957 | * Note that the caller to this function must lock before calling, since the | |
1958 | * hardware writes must be protected from one another. | |
1959 | **/ | |
1960 | s32 ixgbe_fdir_add_perfect_filter_82599(struct ixgbe_hw *hw, | |
7b25cdba DS |
1961 | struct ixgbe_atr_input *input, |
1962 | u16 soft_id, | |
1963 | u8 queue) | |
ffff4772 PWJ |
1964 | { |
1965 | u32 fdircmd = 0; | |
1966 | u32 fdirhash; | |
1967 | u32 src_ipv4, dst_ipv4; | |
1968 | u32 src_ipv6_1, src_ipv6_2, src_ipv6_3, src_ipv6_4; | |
1969 | u16 src_port, dst_port, vlan_id, flex_bytes; | |
1970 | u16 bucket_hash; | |
1971 | u8 l4type; | |
1972 | ||
1973 | /* Get our input values */ | |
1974 | ixgbe_atr_get_l4type_82599(input, &l4type); | |
1975 | ||
1976 | /* | |
1977 | * Check l4type formatting, and bail out before we touch the hardware | |
1978 | * if there's a configuration issue | |
1979 | */ | |
1980 | switch (l4type & IXGBE_ATR_L4TYPE_MASK) { | |
1981 | case IXGBE_ATR_L4TYPE_TCP: | |
1982 | fdircmd |= IXGBE_FDIRCMD_L4TYPE_TCP; | |
1983 | break; | |
1984 | case IXGBE_ATR_L4TYPE_UDP: | |
1985 | fdircmd |= IXGBE_FDIRCMD_L4TYPE_UDP; | |
1986 | break; | |
1987 | case IXGBE_ATR_L4TYPE_SCTP: | |
1988 | fdircmd |= IXGBE_FDIRCMD_L4TYPE_SCTP; | |
1989 | break; | |
1990 | default: | |
1991 | hw_dbg(hw, "Error on l4type input\n"); | |
1992 | return IXGBE_ERR_CONFIG; | |
1993 | } | |
1994 | ||
1995 | bucket_hash = ixgbe_atr_compute_hash_82599(input, | |
1996 | IXGBE_ATR_BUCKET_HASH_KEY); | |
1997 | ||
1998 | /* bucket_hash is only 15 bits */ | |
1999 | bucket_hash &= IXGBE_ATR_HASH_MASK; | |
2000 | ||
2001 | ixgbe_atr_get_vlan_id_82599(input, &vlan_id); | |
2002 | ixgbe_atr_get_src_port_82599(input, &src_port); | |
2003 | ixgbe_atr_get_dst_port_82599(input, &dst_port); | |
2004 | ixgbe_atr_get_flex_byte_82599(input, &flex_bytes); | |
2005 | ||
2006 | fdirhash = soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT | bucket_hash; | |
2007 | ||
2008 | /* Now figure out if we're IPv4 or IPv6 */ | |
2009 | if (l4type & IXGBE_ATR_L4TYPE_IPV6_MASK) { | |
2010 | /* IPv6 */ | |
2011 | ixgbe_atr_get_src_ipv6_82599(input, &src_ipv6_1, &src_ipv6_2, | |
2012 | &src_ipv6_3, &src_ipv6_4); | |
2013 | ||
2014 | IXGBE_WRITE_REG(hw, IXGBE_FDIRSIPv6(0), src_ipv6_1); | |
2015 | IXGBE_WRITE_REG(hw, IXGBE_FDIRSIPv6(1), src_ipv6_2); | |
2016 | IXGBE_WRITE_REG(hw, IXGBE_FDIRSIPv6(2), src_ipv6_3); | |
2017 | /* The last 4 bytes is the same register as IPv4 */ | |
2018 | IXGBE_WRITE_REG(hw, IXGBE_FDIRIPSA, src_ipv6_4); | |
2019 | ||
2020 | fdircmd |= IXGBE_FDIRCMD_IPV6; | |
2021 | fdircmd |= IXGBE_FDIRCMD_IPv6DMATCH; | |
2022 | } else { | |
2023 | /* IPv4 */ | |
2024 | ixgbe_atr_get_src_ipv4_82599(input, &src_ipv4); | |
2025 | IXGBE_WRITE_REG(hw, IXGBE_FDIRIPSA, src_ipv4); | |
2026 | ||
2027 | } | |
2028 | ||
2029 | ixgbe_atr_get_dst_ipv4_82599(input, &dst_ipv4); | |
2030 | IXGBE_WRITE_REG(hw, IXGBE_FDIRIPDA, dst_ipv4); | |
2031 | ||
2032 | IXGBE_WRITE_REG(hw, IXGBE_FDIRVLAN, (vlan_id | | |
2033 | (flex_bytes << IXGBE_FDIRVLAN_FLEX_SHIFT))); | |
2034 | IXGBE_WRITE_REG(hw, IXGBE_FDIRPORT, (src_port | | |
2035 | (dst_port << IXGBE_FDIRPORT_DESTINATION_SHIFT))); | |
2036 | ||
2037 | fdircmd |= IXGBE_FDIRCMD_CMD_ADD_FLOW; | |
2038 | fdircmd |= IXGBE_FDIRCMD_FILTER_UPDATE; | |
2039 | fdircmd |= IXGBE_FDIRCMD_LAST; | |
2040 | fdircmd |= IXGBE_FDIRCMD_QUEUE_EN; | |
2041 | fdircmd |= queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT; | |
2042 | ||
2043 | IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash); | |
2044 | IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, fdircmd); | |
2045 | ||
2046 | return 0; | |
2047 | } | |
11afc1b1 PW |
2048 | /** |
2049 | * ixgbe_read_analog_reg8_82599 - Reads 8 bit Omer analog register | |
2050 | * @hw: pointer to hardware structure | |
2051 | * @reg: analog register to read | |
2052 | * @val: read value | |
2053 | * | |
2054 | * Performs read operation to Omer analog register specified. | |
2055 | **/ | |
7b25cdba | 2056 | static s32 ixgbe_read_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 *val) |
11afc1b1 PW |
2057 | { |
2058 | u32 core_ctl; | |
2059 | ||
2060 | IXGBE_WRITE_REG(hw, IXGBE_CORECTL, IXGBE_CORECTL_WRITE_CMD | | |
2061 | (reg << 8)); | |
2062 | IXGBE_WRITE_FLUSH(hw); | |
2063 | udelay(10); | |
2064 | core_ctl = IXGBE_READ_REG(hw, IXGBE_CORECTL); | |
2065 | *val = (u8)core_ctl; | |
2066 | ||
2067 | return 0; | |
2068 | } | |
2069 | ||
2070 | /** | |
2071 | * ixgbe_write_analog_reg8_82599 - Writes 8 bit Omer analog register | |
2072 | * @hw: pointer to hardware structure | |
2073 | * @reg: atlas register to write | |
2074 | * @val: value to write | |
2075 | * | |
2076 | * Performs write operation to Omer analog register specified. | |
2077 | **/ | |
7b25cdba | 2078 | static s32 ixgbe_write_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 val) |
11afc1b1 PW |
2079 | { |
2080 | u32 core_ctl; | |
2081 | ||
2082 | core_ctl = (reg << 8) | val; | |
2083 | IXGBE_WRITE_REG(hw, IXGBE_CORECTL, core_ctl); | |
2084 | IXGBE_WRITE_FLUSH(hw); | |
2085 | udelay(10); | |
2086 | ||
2087 | return 0; | |
2088 | } | |
2089 | ||
2090 | /** | |
2091 | * ixgbe_start_hw_82599 - Prepare hardware for Tx/Rx | |
2092 | * @hw: pointer to hardware structure | |
2093 | * | |
2094 | * Starts the hardware using the generic start_hw function. | |
2095 | * Then performs device-specific: | |
2096 | * Clears the rate limiter registers. | |
2097 | **/ | |
7b25cdba | 2098 | static s32 ixgbe_start_hw_82599(struct ixgbe_hw *hw) |
11afc1b1 PW |
2099 | { |
2100 | u32 q_num; | |
794caeb2 | 2101 | s32 ret_val; |
11afc1b1 | 2102 | |
794caeb2 | 2103 | ret_val = ixgbe_start_hw_generic(hw); |
11afc1b1 PW |
2104 | |
2105 | /* Clear the rate limiters */ | |
2106 | for (q_num = 0; q_num < hw->mac.max_tx_queues; q_num++) { | |
2107 | IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, q_num); | |
2108 | IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, 0); | |
2109 | } | |
2110 | IXGBE_WRITE_FLUSH(hw); | |
2111 | ||
50ac58ba PWJ |
2112 | /* We need to run link autotry after the driver loads */ |
2113 | hw->mac.autotry_restart = true; | |
2114 | ||
794caeb2 PWJ |
2115 | if (ret_val == 0) |
2116 | ret_val = ixgbe_verify_fw_version_82599(hw); | |
2117 | ||
2118 | return ret_val; | |
11afc1b1 PW |
2119 | } |
2120 | ||
2121 | /** | |
2122 | * ixgbe_identify_phy_82599 - Get physical layer module | |
2123 | * @hw: pointer to hardware structure | |
2124 | * | |
2125 | * Determines the physical layer module found on the current adapter. | |
2126 | **/ | |
7b25cdba | 2127 | static s32 ixgbe_identify_phy_82599(struct ixgbe_hw *hw) |
11afc1b1 PW |
2128 | { |
2129 | s32 status = IXGBE_ERR_PHY_ADDR_INVALID; | |
2130 | status = ixgbe_identify_phy_generic(hw); | |
2131 | if (status != 0) | |
2132 | status = ixgbe_identify_sfp_module_generic(hw); | |
2133 | return status; | |
2134 | } | |
2135 | ||
2136 | /** | |
2137 | * ixgbe_get_supported_physical_layer_82599 - Returns physical layer type | |
2138 | * @hw: pointer to hardware structure | |
2139 | * | |
2140 | * Determines physical layer capabilities of the current configuration. | |
2141 | **/ | |
7b25cdba | 2142 | static u32 ixgbe_get_supported_physical_layer_82599(struct ixgbe_hw *hw) |
11afc1b1 PW |
2143 | { |
2144 | u32 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN; | |
04193058 PWJ |
2145 | u32 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC); |
2146 | u32 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2); | |
2147 | u32 pma_pmd_10g_serial = autoc2 & IXGBE_AUTOC2_10G_SERIAL_PMA_PMD_MASK; | |
2148 | u32 pma_pmd_10g_parallel = autoc & IXGBE_AUTOC_10G_PMA_PMD_MASK; | |
2149 | u32 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK; | |
2150 | u16 ext_ability = 0; | |
1339b9e9 | 2151 | u8 comp_codes_10g = 0; |
11afc1b1 | 2152 | |
04193058 PWJ |
2153 | hw->phy.ops.identify(hw); |
2154 | ||
2155 | if (hw->phy.type == ixgbe_phy_tn || | |
2156 | hw->phy.type == ixgbe_phy_cu_unknown) { | |
6b73e10d BH |
2157 | hw->phy.ops.read_reg(hw, MDIO_PMA_EXTABLE, MDIO_MMD_PMAPMD, |
2158 | &ext_ability); | |
2159 | if (ext_ability & MDIO_PMA_EXTABLE_10GBT) | |
04193058 | 2160 | physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_T; |
6b73e10d | 2161 | if (ext_ability & MDIO_PMA_EXTABLE_1000BT) |
04193058 | 2162 | physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_T; |
6b73e10d | 2163 | if (ext_ability & MDIO_PMA_EXTABLE_100BTX) |
04193058 PWJ |
2164 | physical_layer |= IXGBE_PHYSICAL_LAYER_100BASE_TX; |
2165 | goto out; | |
2166 | } | |
2167 | ||
2168 | switch (autoc & IXGBE_AUTOC_LMS_MASK) { | |
2169 | case IXGBE_AUTOC_LMS_1G_AN: | |
2170 | case IXGBE_AUTOC_LMS_1G_LINK_NO_AN: | |
2171 | if (pma_pmd_1g == IXGBE_AUTOC_1G_KX_BX) { | |
2172 | physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_KX | | |
2173 | IXGBE_PHYSICAL_LAYER_1000BASE_BX; | |
2174 | goto out; | |
2175 | } else | |
2176 | /* SFI mode so read SFP module */ | |
2177 | goto sfp_check; | |
11afc1b1 | 2178 | break; |
04193058 PWJ |
2179 | case IXGBE_AUTOC_LMS_10G_LINK_NO_AN: |
2180 | if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_CX4) | |
2181 | physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_CX4; | |
2182 | else if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_KX4) | |
2183 | physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KX4; | |
1fcf03e6 PWJ |
2184 | else if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_XAUI) |
2185 | physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_XAUI; | |
04193058 PWJ |
2186 | goto out; |
2187 | break; | |
2188 | case IXGBE_AUTOC_LMS_10G_SERIAL: | |
2189 | if (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_KR) { | |
2190 | physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KR; | |
2191 | goto out; | |
2192 | } else if (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI) | |
2193 | goto sfp_check; | |
2194 | break; | |
2195 | case IXGBE_AUTOC_LMS_KX4_KX_KR: | |
2196 | case IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN: | |
2197 | if (autoc & IXGBE_AUTOC_KX_SUPP) | |
2198 | physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_KX; | |
2199 | if (autoc & IXGBE_AUTOC_KX4_SUPP) | |
2200 | physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KX4; | |
2201 | if (autoc & IXGBE_AUTOC_KR_SUPP) | |
2202 | physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KR; | |
2203 | goto out; | |
2204 | break; | |
2205 | default: | |
2206 | goto out; | |
2207 | break; | |
2208 | } | |
11afc1b1 | 2209 | |
04193058 PWJ |
2210 | sfp_check: |
2211 | /* SFP check must be done last since DA modules are sometimes used to | |
2212 | * test KR mode - we need to id KR mode correctly before SFP module. | |
2213 | * Call identify_sfp because the pluggable module may have changed */ | |
2214 | hw->phy.ops.identify_sfp(hw); | |
2215 | if (hw->phy.sfp_type == ixgbe_sfp_type_not_present) | |
2216 | goto out; | |
2217 | ||
2218 | switch (hw->phy.type) { | |
2219 | case ixgbe_phy_tw_tyco: | |
2220 | case ixgbe_phy_tw_unknown: | |
2221 | physical_layer = IXGBE_PHYSICAL_LAYER_SFP_PLUS_CU; | |
2222 | break; | |
2223 | case ixgbe_phy_sfp_avago: | |
2224 | case ixgbe_phy_sfp_ftl: | |
2225 | case ixgbe_phy_sfp_intel: | |
2226 | case ixgbe_phy_sfp_unknown: | |
2227 | hw->phy.ops.read_i2c_eeprom(hw, | |
2228 | IXGBE_SFF_10GBE_COMP_CODES, &comp_codes_10g); | |
2229 | if (comp_codes_10g & IXGBE_SFF_10GBASESR_CAPABLE) | |
11afc1b1 | 2230 | physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_SR; |
04193058 | 2231 | else if (comp_codes_10g & IXGBE_SFF_10GBASELR_CAPABLE) |
11afc1b1 | 2232 | physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_LR; |
11afc1b1 PW |
2233 | break; |
2234 | default: | |
11afc1b1 PW |
2235 | break; |
2236 | } | |
2237 | ||
04193058 | 2238 | out: |
11afc1b1 PW |
2239 | return physical_layer; |
2240 | } | |
2241 | ||
2242 | /** | |
2243 | * ixgbe_enable_rx_dma_82599 - Enable the Rx DMA unit on 82599 | |
2244 | * @hw: pointer to hardware structure | |
2245 | * @regval: register value to write to RXCTRL | |
2246 | * | |
2247 | * Enables the Rx DMA unit for 82599 | |
2248 | **/ | |
7b25cdba | 2249 | static s32 ixgbe_enable_rx_dma_82599(struct ixgbe_hw *hw, u32 regval) |
11afc1b1 PW |
2250 | { |
2251 | #define IXGBE_MAX_SECRX_POLL 30 | |
2252 | int i; | |
2253 | int secrxreg; | |
2254 | ||
2255 | /* | |
2256 | * Workaround for 82599 silicon errata when enabling the Rx datapath. | |
2257 | * If traffic is incoming before we enable the Rx unit, it could hang | |
2258 | * the Rx DMA unit. Therefore, make sure the security engine is | |
2259 | * completely disabled prior to enabling the Rx unit. | |
2260 | */ | |
2261 | secrxreg = IXGBE_READ_REG(hw, IXGBE_SECRXCTRL); | |
2262 | secrxreg |= IXGBE_SECRXCTRL_RX_DIS; | |
2263 | IXGBE_WRITE_REG(hw, IXGBE_SECRXCTRL, secrxreg); | |
2264 | for (i = 0; i < IXGBE_MAX_SECRX_POLL; i++) { | |
2265 | secrxreg = IXGBE_READ_REG(hw, IXGBE_SECRXSTAT); | |
2266 | if (secrxreg & IXGBE_SECRXSTAT_SECRX_RDY) | |
2267 | break; | |
2268 | else | |
2269 | udelay(10); | |
2270 | } | |
2271 | ||
2272 | /* For informational purposes only */ | |
2273 | if (i >= IXGBE_MAX_SECRX_POLL) | |
2274 | hw_dbg(hw, "Rx unit being enabled before security " | |
2275 | "path fully disabled. Continuing with init.\n"); | |
2276 | ||
2277 | IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, regval); | |
2278 | secrxreg = IXGBE_READ_REG(hw, IXGBE_SECRXCTRL); | |
2279 | secrxreg &= ~IXGBE_SECRXCTRL_RX_DIS; | |
2280 | IXGBE_WRITE_REG(hw, IXGBE_SECRXCTRL, secrxreg); | |
2281 | IXGBE_WRITE_FLUSH(hw); | |
2282 | ||
2283 | return 0; | |
2284 | } | |
2285 | ||
04193058 PWJ |
2286 | /** |
2287 | * ixgbe_get_device_caps_82599 - Get additional device capabilities | |
2288 | * @hw: pointer to hardware structure | |
2289 | * @device_caps: the EEPROM word with the extra device capabilities | |
2290 | * | |
2291 | * This function will read the EEPROM location for the device capabilities, | |
2292 | * and return the word through device_caps. | |
2293 | **/ | |
7b25cdba | 2294 | static s32 ixgbe_get_device_caps_82599(struct ixgbe_hw *hw, u16 *device_caps) |
04193058 PWJ |
2295 | { |
2296 | hw->eeprom.ops.read(hw, IXGBE_DEVICE_CAPS, device_caps); | |
2297 | ||
2298 | return 0; | |
2299 | } | |
2300 | ||
0365e6e4 PW |
2301 | /** |
2302 | * ixgbe_get_san_mac_addr_offset_82599 - SAN MAC address offset for 82599 | |
2303 | * @hw: pointer to hardware structure | |
2304 | * @san_mac_offset: SAN MAC address offset | |
2305 | * | |
2306 | * This function will read the EEPROM location for the SAN MAC address | |
2307 | * pointer, and returns the value at that location. This is used in both | |
2308 | * get and set mac_addr routines. | |
2309 | **/ | |
7b25cdba DS |
2310 | static s32 ixgbe_get_san_mac_addr_offset_82599(struct ixgbe_hw *hw, |
2311 | u16 *san_mac_offset) | |
0365e6e4 PW |
2312 | { |
2313 | /* | |
2314 | * First read the EEPROM pointer to see if the MAC addresses are | |
2315 | * available. | |
2316 | */ | |
2317 | hw->eeprom.ops.read(hw, IXGBE_SAN_MAC_ADDR_PTR, san_mac_offset); | |
2318 | ||
2319 | return 0; | |
2320 | } | |
2321 | ||
2322 | /** | |
2323 | * ixgbe_get_san_mac_addr_82599 - SAN MAC address retrieval for 82599 | |
2324 | * @hw: pointer to hardware structure | |
2325 | * @san_mac_addr: SAN MAC address | |
2326 | * | |
2327 | * Reads the SAN MAC address from the EEPROM, if it's available. This is | |
2328 | * per-port, so set_lan_id() must be called before reading the addresses. | |
2329 | * set_lan_id() is called by identify_sfp(), but this cannot be relied | |
2330 | * upon for non-SFP connections, so we must call it here. | |
2331 | **/ | |
7b25cdba | 2332 | static s32 ixgbe_get_san_mac_addr_82599(struct ixgbe_hw *hw, u8 *san_mac_addr) |
0365e6e4 PW |
2333 | { |
2334 | u16 san_mac_data, san_mac_offset; | |
2335 | u8 i; | |
2336 | ||
2337 | /* | |
2338 | * First read the EEPROM pointer to see if the MAC addresses are | |
2339 | * available. If they're not, no point in calling set_lan_id() here. | |
2340 | */ | |
2341 | ixgbe_get_san_mac_addr_offset_82599(hw, &san_mac_offset); | |
2342 | ||
2343 | if ((san_mac_offset == 0) || (san_mac_offset == 0xFFFF)) { | |
2344 | /* | |
2345 | * No addresses available in this EEPROM. It's not an | |
2346 | * error though, so just wipe the local address and return. | |
2347 | */ | |
2348 | for (i = 0; i < 6; i++) | |
2349 | san_mac_addr[i] = 0xFF; | |
2350 | ||
2351 | goto san_mac_addr_out; | |
2352 | } | |
2353 | ||
2354 | /* make sure we know which port we need to program */ | |
2355 | hw->mac.ops.set_lan_id(hw); | |
2356 | /* apply the port offset to the address offset */ | |
2357 | (hw->bus.func) ? (san_mac_offset += IXGBE_SAN_MAC_ADDR_PORT1_OFFSET) : | |
2358 | (san_mac_offset += IXGBE_SAN_MAC_ADDR_PORT0_OFFSET); | |
2359 | for (i = 0; i < 3; i++) { | |
2360 | hw->eeprom.ops.read(hw, san_mac_offset, &san_mac_data); | |
2361 | san_mac_addr[i * 2] = (u8)(san_mac_data); | |
2362 | san_mac_addr[i * 2 + 1] = (u8)(san_mac_data >> 8); | |
2363 | san_mac_offset++; | |
2364 | } | |
2365 | ||
2366 | san_mac_addr_out: | |
2367 | return 0; | |
2368 | } | |
2369 | ||
794caeb2 PWJ |
2370 | /** |
2371 | * ixgbe_verify_fw_version_82599 - verify fw version for 82599 | |
2372 | * @hw: pointer to hardware structure | |
2373 | * | |
2374 | * Verifies that installed the firmware version is 0.6 or higher | |
2375 | * for SFI devices. All 82599 SFI devices should have version 0.6 or higher. | |
2376 | * | |
2377 | * Returns IXGBE_ERR_EEPROM_VERSION if the FW is not present or | |
2378 | * if the FW version is not supported. | |
2379 | **/ | |
2380 | static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw) | |
2381 | { | |
2382 | s32 status = IXGBE_ERR_EEPROM_VERSION; | |
2383 | u16 fw_offset, fw_ptp_cfg_offset; | |
2384 | u16 fw_version = 0; | |
2385 | ||
2386 | /* firmware check is only necessary for SFI devices */ | |
2387 | if (hw->phy.media_type != ixgbe_media_type_fiber) { | |
2388 | status = 0; | |
2389 | goto fw_version_out; | |
2390 | } | |
2391 | ||
2392 | /* get the offset to the Firmware Module block */ | |
2393 | hw->eeprom.ops.read(hw, IXGBE_FW_PTR, &fw_offset); | |
2394 | ||
2395 | if ((fw_offset == 0) || (fw_offset == 0xFFFF)) | |
2396 | goto fw_version_out; | |
2397 | ||
2398 | /* get the offset to the Pass Through Patch Configuration block */ | |
2399 | hw->eeprom.ops.read(hw, (fw_offset + | |
2400 | IXGBE_FW_PASSTHROUGH_PATCH_CONFIG_PTR), | |
2401 | &fw_ptp_cfg_offset); | |
2402 | ||
2403 | if ((fw_ptp_cfg_offset == 0) || (fw_ptp_cfg_offset == 0xFFFF)) | |
2404 | goto fw_version_out; | |
2405 | ||
2406 | /* get the firmware version */ | |
2407 | hw->eeprom.ops.read(hw, (fw_ptp_cfg_offset + | |
2408 | IXGBE_FW_PATCH_VERSION_4), | |
2409 | &fw_version); | |
2410 | ||
2411 | if (fw_version > 0x5) | |
2412 | status = 0; | |
2413 | ||
2414 | fw_version_out: | |
2415 | return status; | |
2416 | } | |
2417 | ||
11afc1b1 PW |
2418 | static struct ixgbe_mac_operations mac_ops_82599 = { |
2419 | .init_hw = &ixgbe_init_hw_generic, | |
2420 | .reset_hw = &ixgbe_reset_hw_82599, | |
2421 | .start_hw = &ixgbe_start_hw_82599, | |
2422 | .clear_hw_cntrs = &ixgbe_clear_hw_cntrs_generic, | |
2423 | .get_media_type = &ixgbe_get_media_type_82599, | |
2424 | .get_supported_physical_layer = &ixgbe_get_supported_physical_layer_82599, | |
2425 | .enable_rx_dma = &ixgbe_enable_rx_dma_82599, | |
2426 | .get_mac_addr = &ixgbe_get_mac_addr_generic, | |
0365e6e4 | 2427 | .get_san_mac_addr = &ixgbe_get_san_mac_addr_82599, |
04193058 | 2428 | .get_device_caps = &ixgbe_get_device_caps_82599, |
11afc1b1 PW |
2429 | .stop_adapter = &ixgbe_stop_adapter_generic, |
2430 | .get_bus_info = &ixgbe_get_bus_info_generic, | |
2431 | .set_lan_id = &ixgbe_set_lan_id_multi_port_pcie, | |
2432 | .read_analog_reg8 = &ixgbe_read_analog_reg8_82599, | |
2433 | .write_analog_reg8 = &ixgbe_write_analog_reg8_82599, | |
2434 | .setup_link = &ixgbe_setup_mac_link_82599, | |
11afc1b1 PW |
2435 | .check_link = &ixgbe_check_mac_link_82599, |
2436 | .get_link_capabilities = &ixgbe_get_link_capabilities_82599, | |
2437 | .led_on = &ixgbe_led_on_generic, | |
2438 | .led_off = &ixgbe_led_off_generic, | |
87c12017 PW |
2439 | .blink_led_start = &ixgbe_blink_led_start_generic, |
2440 | .blink_led_stop = &ixgbe_blink_led_stop_generic, | |
11afc1b1 PW |
2441 | .set_rar = &ixgbe_set_rar_generic, |
2442 | .clear_rar = &ixgbe_clear_rar_generic, | |
2443 | .set_vmdq = &ixgbe_set_vmdq_82599, | |
2444 | .clear_vmdq = &ixgbe_clear_vmdq_82599, | |
2445 | .init_rx_addrs = &ixgbe_init_rx_addrs_generic, | |
2446 | .update_uc_addr_list = &ixgbe_update_uc_addr_list_generic, | |
2447 | .update_mc_addr_list = &ixgbe_update_mc_addr_list_generic, | |
2448 | .enable_mc = &ixgbe_enable_mc_generic, | |
2449 | .disable_mc = &ixgbe_disable_mc_generic, | |
2450 | .clear_vfta = &ixgbe_clear_vfta_82599, | |
2451 | .set_vfta = &ixgbe_set_vfta_82599, | |
620fa036 | 2452 | .fc_enable = &ixgbe_fc_enable_generic, |
11afc1b1 PW |
2453 | .init_uta_tables = &ixgbe_init_uta_tables_82599, |
2454 | .setup_sfp = &ixgbe_setup_sfp_modules_82599, | |
2455 | }; | |
2456 | ||
2457 | static struct ixgbe_eeprom_operations eeprom_ops_82599 = { | |
2458 | .init_params = &ixgbe_init_eeprom_params_generic, | |
2459 | .read = &ixgbe_read_eeprom_generic, | |
2460 | .write = &ixgbe_write_eeprom_generic, | |
2461 | .validate_checksum = &ixgbe_validate_eeprom_checksum_generic, | |
2462 | .update_checksum = &ixgbe_update_eeprom_checksum_generic, | |
2463 | }; | |
2464 | ||
2465 | static struct ixgbe_phy_operations phy_ops_82599 = { | |
2466 | .identify = &ixgbe_identify_phy_82599, | |
2467 | .identify_sfp = &ixgbe_identify_sfp_module_generic, | |
04f165ef | 2468 | .init = &ixgbe_init_phy_ops_82599, |
11afc1b1 PW |
2469 | .reset = &ixgbe_reset_phy_generic, |
2470 | .read_reg = &ixgbe_read_phy_reg_generic, | |
2471 | .write_reg = &ixgbe_write_phy_reg_generic, | |
2472 | .setup_link = &ixgbe_setup_phy_link_generic, | |
2473 | .setup_link_speed = &ixgbe_setup_phy_link_speed_generic, | |
2474 | .read_i2c_byte = &ixgbe_read_i2c_byte_generic, | |
2475 | .write_i2c_byte = &ixgbe_write_i2c_byte_generic, | |
2476 | .read_i2c_eeprom = &ixgbe_read_i2c_eeprom_generic, | |
2477 | .write_i2c_eeprom = &ixgbe_write_i2c_eeprom_generic, | |
2478 | }; | |
2479 | ||
2480 | struct ixgbe_info ixgbe_82599_info = { | |
2481 | .mac = ixgbe_mac_82599EB, | |
2482 | .get_invariants = &ixgbe_get_invariants_82599, | |
2483 | .mac_ops = &mac_ops_82599, | |
2484 | .eeprom_ops = &eeprom_ops_82599, | |
2485 | .phy_ops = &phy_ops_82599, | |
2486 | }; |