ixgbe: fix return value checks
[linux-2.6-block.git] / drivers / net / ixgbe / ixgbe_82598.c
CommitLineData
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1/*******************************************************************************
2
3 Intel 10 Gigabit PCI Express Linux driver
a52055e0 4 Copyright(c) 1999 - 2011 Intel Corporation.
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5
6 This program is free software; you can redistribute it and/or modify it
7 under the terms and conditions of the GNU General Public License,
8 version 2, as published by the Free Software Foundation.
9
10 This program is distributed in the hope it will be useful, but WITHOUT
11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 more details.
14
15 You should have received a copy of the GNU General Public License along with
16 this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
18
19 The full GNU General Public License is included in this distribution in
20 the file called "COPYING".
21
22 Contact Information:
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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
9c8eb720 32#include "ixgbe.h"
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33#include "ixgbe_phy.h"
34
35#define IXGBE_82598_MAX_TX_QUEUES 32
36#define IXGBE_82598_MAX_RX_QUEUES 64
37#define IXGBE_82598_RAR_ENTRIES 16
2c5645cf
CL
38#define IXGBE_82598_MC_TBL_SIZE 128
39#define IXGBE_82598_VFT_TBL_SIZE 128
9a799d71 40
8620a103 41static s32 ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw,
21ce849b
MC
42 ixgbe_link_speed speed,
43 bool autoneg,
44 bool autoneg_wait_to_complete);
c4900be0
DS
45static s32 ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
46 u8 *eeprom_data);
9a799d71 47
202ff1ec
MC
48/**
49 * ixgbe_set_pcie_completion_timeout - set pci-e completion timeout
50 * @hw: pointer to the HW structure
51 *
52 * The defaults for 82598 should be in the range of 50us to 50ms,
53 * however the hardware default for these parts is 500us to 1ms which is less
54 * than the 10ms recommended by the pci-e spec. To address this we need to
55 * increase the value to either 10ms to 250ms for capability version 1 config,
56 * or 16ms to 55ms for version 2.
57 **/
7b25cdba 58static void ixgbe_set_pcie_completion_timeout(struct ixgbe_hw *hw)
202ff1ec
MC
59{
60 struct ixgbe_adapter *adapter = hw->back;
61 u32 gcr = IXGBE_READ_REG(hw, IXGBE_GCR);
62 u16 pcie_devctl2;
63
64 /* only take action if timeout value is defaulted to 0 */
65 if (gcr & IXGBE_GCR_CMPL_TMOUT_MASK)
66 goto out;
67
68 /*
69 * if capababilities version is type 1 we can write the
70 * timeout of 10ms to 250ms through the GCR register
71 */
72 if (!(gcr & IXGBE_GCR_CAP_VER2)) {
73 gcr |= IXGBE_GCR_CMPL_TMOUT_10ms;
74 goto out;
75 }
76
77 /*
78 * for version 2 capabilities we need to write the config space
79 * directly in order to set the completion timeout value for
80 * 16ms to 55ms
81 */
82 pci_read_config_word(adapter->pdev,
83 IXGBE_PCI_DEVICE_CONTROL2, &pcie_devctl2);
84 pcie_devctl2 |= IXGBE_PCI_DEVICE_CONTROL2_16ms;
85 pci_write_config_word(adapter->pdev,
86 IXGBE_PCI_DEVICE_CONTROL2, pcie_devctl2);
87out:
88 /* disable completion timeout resend */
89 gcr &= ~IXGBE_GCR_CMPL_TMOUT_RESEND;
90 IXGBE_WRITE_REG(hw, IXGBE_GCR, gcr);
91}
92
eb7f139c
PWJ
93/**
94 * ixgbe_get_pcie_msix_count_82598 - Gets MSI-X vector count
95 * @hw: pointer to hardware structure
96 *
97 * Read PCIe configuration space, and get the MSI-X vector count from
98 * the capabilities table.
99 **/
1aef47c4 100static u16 ixgbe_get_pcie_msix_count_82598(struct ixgbe_hw *hw)
eb7f139c
PWJ
101{
102 struct ixgbe_adapter *adapter = hw->back;
103 u16 msix_count;
104 pci_read_config_word(adapter->pdev, IXGBE_PCIE_MSIX_82598_CAPS,
105 &msix_count);
106 msix_count &= IXGBE_PCIE_MSIX_TBL_SZ_MASK;
107
108 /* MSI-X count is zero-based in HW, so increment to give proper value */
109 msix_count++;
110
111 return msix_count;
112}
113
c44ade9e
JB
114/**
115 */
9a799d71 116static s32 ixgbe_get_invariants_82598(struct ixgbe_hw *hw)
04f165ef
PW
117{
118 struct ixgbe_mac_info *mac = &hw->mac;
119
120 /* Call PHY identify routine to get the phy type */
121 ixgbe_identify_phy_generic(hw);
122
123 mac->mcft_size = IXGBE_82598_MC_TBL_SIZE;
124 mac->vft_size = IXGBE_82598_VFT_TBL_SIZE;
125 mac->num_rar_entries = IXGBE_82598_RAR_ENTRIES;
126 mac->max_rx_queues = IXGBE_82598_MAX_RX_QUEUES;
127 mac->max_tx_queues = IXGBE_82598_MAX_TX_QUEUES;
128 mac->max_msix_vectors = ixgbe_get_pcie_msix_count_82598(hw);
129
130 return 0;
131}
132
133/**
134 * ixgbe_init_phy_ops_82598 - PHY/SFP specific init
135 * @hw: pointer to hardware structure
136 *
137 * Initialize any function pointers that were not able to be
138 * set during get_invariants because the PHY/SFP type was
139 * not known. Perform the SFP init if necessary.
140 *
141 **/
7b25cdba 142static s32 ixgbe_init_phy_ops_82598(struct ixgbe_hw *hw)
9a799d71 143{
c44ade9e
JB
144 struct ixgbe_mac_info *mac = &hw->mac;
145 struct ixgbe_phy_info *phy = &hw->phy;
c4900be0
DS
146 s32 ret_val = 0;
147 u16 list_offset, data_offset;
c44ade9e 148
04f165ef
PW
149 /* Identify the PHY */
150 phy->ops.identify(hw);
03cfa205 151
04f165ef
PW
152 /* Overwrite the link function pointers if copper PHY */
153 if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper) {
154 mac->ops.setup_link = &ixgbe_setup_copper_link_82598;
04f165ef 155 mac->ops.get_link_capabilities =
a391f1d5 156 &ixgbe_get_copper_link_capabilities_generic;
04f165ef 157 }
c44ade9e 158
04f165ef 159 switch (hw->phy.type) {
0befdb3e 160 case ixgbe_phy_tn:
9dda1736 161 phy->ops.setup_link = &ixgbe_setup_phy_link_tnx;
0befdb3e
JB
162 phy->ops.check_link = &ixgbe_check_phy_link_tnx;
163 phy->ops.get_firmware_version =
164 &ixgbe_get_phy_firmware_version_tnx;
165 break;
c4900be0
DS
166 case ixgbe_phy_nl:
167 phy->ops.reset = &ixgbe_reset_phy_nl;
168
169 /* Call SFP+ identify routine to get the SFP+ module type */
170 ret_val = phy->ops.identify_sfp(hw);
171 if (ret_val != 0)
172 goto out;
173 else if (hw->phy.sfp_type == ixgbe_sfp_type_unknown) {
174 ret_val = IXGBE_ERR_SFP_NOT_SUPPORTED;
175 goto out;
176 }
177
178 /* Check to see if SFP+ module is supported */
179 ret_val = ixgbe_get_sfp_init_sequence_offsets(hw,
04f165ef
PW
180 &list_offset,
181 &data_offset);
c4900be0
DS
182 if (ret_val != 0) {
183 ret_val = IXGBE_ERR_SFP_NOT_SUPPORTED;
184 goto out;
185 }
186 break;
c44ade9e
JB
187 default:
188 break;
189 }
190
c4900be0
DS
191out:
192 return ret_val;
9a799d71
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193}
194
202ff1ec
MC
195/**
196 * ixgbe_start_hw_82598 - Prepare hardware for Tx/Rx
197 * @hw: pointer to hardware structure
198 *
199 * Starts the hardware using the generic start_hw function.
200 * Then set pcie completion timeout
201 **/
7b25cdba 202static s32 ixgbe_start_hw_82598(struct ixgbe_hw *hw)
202ff1ec
MC
203{
204 s32 ret_val = 0;
205
206 ret_val = ixgbe_start_hw_generic(hw);
207
208 /* set the completion timeout for interface */
209 if (ret_val == 0)
210 ixgbe_set_pcie_completion_timeout(hw);
211
212 return ret_val;
213}
214
9a799d71 215/**
c44ade9e 216 * ixgbe_get_link_capabilities_82598 - Determines link capabilities
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217 * @hw: pointer to hardware structure
218 * @speed: pointer to link speed
219 * @autoneg: boolean auto-negotiation value
220 *
c44ade9e 221 * Determines the link capabilities by reading the AUTOC register.
9a799d71 222 **/
c44ade9e 223static s32 ixgbe_get_link_capabilities_82598(struct ixgbe_hw *hw,
b4617240
PW
224 ixgbe_link_speed *speed,
225 bool *autoneg)
9a799d71
AK
226{
227 s32 status = 0;
1eb99d5a 228 u32 autoc = 0;
9a799d71 229
3201d313
PWJ
230 /*
231 * Determine link capabilities based on the stored value of AUTOC,
1eb99d5a
PW
232 * which represents EEPROM defaults. If AUTOC value has not been
233 * stored, use the current register value.
3201d313 234 */
1eb99d5a
PW
235 if (hw->mac.orig_link_settings_stored)
236 autoc = hw->mac.orig_autoc;
237 else
238 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
239
240 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
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241 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
242 *speed = IXGBE_LINK_SPEED_1GB_FULL;
243 *autoneg = false;
244 break;
245
246 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
247 *speed = IXGBE_LINK_SPEED_10GB_FULL;
248 *autoneg = false;
249 break;
250
251 case IXGBE_AUTOC_LMS_1G_AN:
252 *speed = IXGBE_LINK_SPEED_1GB_FULL;
253 *autoneg = true;
254 break;
255
256 case IXGBE_AUTOC_LMS_KX4_AN:
257 case IXGBE_AUTOC_LMS_KX4_AN_1G_AN:
258 *speed = IXGBE_LINK_SPEED_UNKNOWN;
1eb99d5a 259 if (autoc & IXGBE_AUTOC_KX4_SUPP)
9a799d71 260 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
1eb99d5a 261 if (autoc & IXGBE_AUTOC_KX_SUPP)
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262 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
263 *autoneg = true;
264 break;
265
266 default:
267 status = IXGBE_ERR_LINK_SETUP;
268 break;
269 }
270
271 return status;
272}
273
9a799d71
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274/**
275 * ixgbe_get_media_type_82598 - Determines media type
276 * @hw: pointer to hardware structure
277 *
278 * Returns the media type (fiber, copper, backplane)
279 **/
280static enum ixgbe_media_type ixgbe_get_media_type_82598(struct ixgbe_hw *hw)
281{
282 enum ixgbe_media_type media_type;
283
037c6d0a
ET
284 /* Detect if there is a copper PHY attached. */
285 switch (hw->phy.type) {
286 case ixgbe_phy_cu_unknown:
287 case ixgbe_phy_tn:
288 case ixgbe_phy_aq:
289 media_type = ixgbe_media_type_copper;
290 goto out;
291 default:
292 break;
293 }
294
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295 /* Media type for I82598 is based on device ID */
296 switch (hw->device_id) {
1e336d0f 297 case IXGBE_DEV_ID_82598:
2f21bdd3 298 case IXGBE_DEV_ID_82598_BX:
037c6d0a 299 /* Default device ID is mezzanine card KX/KX4 */
1e336d0f
DS
300 media_type = ixgbe_media_type_backplane;
301 break;
9a799d71
AK
302 case IXGBE_DEV_ID_82598AF_DUAL_PORT:
303 case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
c4900be0
DS
304 case IXGBE_DEV_ID_82598_DA_DUAL_PORT:
305 case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM:
b95f5fcb 306 case IXGBE_DEV_ID_82598EB_XF_LR:
c4900be0 307 case IXGBE_DEV_ID_82598EB_SFP_LOM:
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308 media_type = ixgbe_media_type_fiber;
309 break;
6b1be199
PWJ
310 case IXGBE_DEV_ID_82598EB_CX4:
311 case IXGBE_DEV_ID_82598_CX4_DUAL_PORT:
312 media_type = ixgbe_media_type_cx4;
313 break;
0befdb3e 314 case IXGBE_DEV_ID_82598AT:
3845bec0 315 case IXGBE_DEV_ID_82598AT2:
0befdb3e
JB
316 media_type = ixgbe_media_type_copper;
317 break;
9a799d71
AK
318 default:
319 media_type = ixgbe_media_type_unknown;
320 break;
321 }
037c6d0a 322out:
9a799d71
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323 return media_type;
324}
325
c44ade9e 326/**
0ecc061d 327 * ixgbe_fc_enable_82598 - Enable flow control
c44ade9e
JB
328 * @hw: pointer to hardware structure
329 * @packetbuf_num: packet buffer number (0-7)
330 *
0ecc061d 331 * Enable flow control according to the current settings.
c44ade9e 332 **/
0ecc061d 333static s32 ixgbe_fc_enable_82598(struct ixgbe_hw *hw, s32 packetbuf_num)
c44ade9e 334{
0ecc061d
PWJ
335 s32 ret_val = 0;
336 u32 fctrl_reg;
c44ade9e 337 u32 rmcs_reg;
0ecc061d 338 u32 reg;
16b61beb 339 u32 rx_pba_size;
a626e847
DS
340 u32 link_speed = 0;
341 bool link_up;
c44ade9e 342
620fa036
MC
343#ifdef CONFIG_DCB
344 if (hw->fc.requested_mode == ixgbe_fc_pfc)
345 goto out;
346
347#endif /* CONFIG_DCB */
a626e847
DS
348 /*
349 * On 82598 having Rx FC on causes resets while doing 1G
350 * so if it's on turn it off once we know link_speed. For
351 * more details see 82598 Specification update.
352 */
353 hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
354 if (link_up && link_speed == IXGBE_LINK_SPEED_1GB_FULL) {
355 switch (hw->fc.requested_mode) {
356 case ixgbe_fc_full:
357 hw->fc.requested_mode = ixgbe_fc_tx_pause;
358 break;
359 case ixgbe_fc_rx_pause:
360 hw->fc.requested_mode = ixgbe_fc_none;
361 break;
362 default:
363 /* no change */
364 break;
365 }
366 }
367
620fa036
MC
368 /* Negotiate the fc mode to use */
369 ret_val = ixgbe_fc_autoneg(hw);
0b0c2b31 370 if (ret_val == IXGBE_ERR_FLOW_CONTROL)
620fa036
MC
371 goto out;
372
373 /* Disable any previous flow control settings */
0ecc061d
PWJ
374 fctrl_reg = IXGBE_READ_REG(hw, IXGBE_FCTRL);
375 fctrl_reg &= ~(IXGBE_FCTRL_RFCE | IXGBE_FCTRL_RPFCE);
c44ade9e
JB
376
377 rmcs_reg = IXGBE_READ_REG(hw, IXGBE_RMCS);
378 rmcs_reg &= ~(IXGBE_RMCS_TFCE_PRIORITY | IXGBE_RMCS_TFCE_802_3X);
379
380 /*
0ecc061d 381 * The possible values of fc.current_mode are:
c44ade9e 382 * 0: Flow control is completely disabled
0ecc061d
PWJ
383 * 1: Rx flow control is enabled (we can receive pause frames,
384 * but not send pause frames).
620fa036 385 * 2: Tx flow control is enabled (we can send pause frames but
0ecc061d 386 * we do not support receiving pause frames).
c44ade9e 387 * 3: Both Rx and Tx flow control (symmetric) are enabled.
620fa036
MC
388#ifdef CONFIG_DCB
389 * 4: Priority Flow Control is enabled.
390#endif
0b0c2b31 391 * other: Invalid.
c44ade9e 392 */
0ecc061d 393 switch (hw->fc.current_mode) {
c44ade9e 394 case ixgbe_fc_none:
620fa036
MC
395 /*
396 * Flow control is disabled by software override or autoneg.
397 * The code below will actually disable it in the HW.
398 */
c44ade9e
JB
399 break;
400 case ixgbe_fc_rx_pause:
401 /*
0ecc061d
PWJ
402 * Rx Flow control is enabled and Tx Flow control is
403 * disabled by software override. Since there really
404 * isn't a way to advertise that we are capable of RX
405 * Pause ONLY, we will advertise that we support both
406 * symmetric and asymmetric Rx PAUSE. Later, we will
407 * disable the adapter's ability to send PAUSE frames.
c44ade9e 408 */
0ecc061d 409 fctrl_reg |= IXGBE_FCTRL_RFCE;
c44ade9e
JB
410 break;
411 case ixgbe_fc_tx_pause:
412 /*
0ecc061d
PWJ
413 * Tx Flow control is enabled, and Rx Flow control is
414 * disabled by software override.
c44ade9e
JB
415 */
416 rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
417 break;
418 case ixgbe_fc_full:
0ecc061d
PWJ
419 /* Flow control (both Rx and Tx) is enabled by SW override. */
420 fctrl_reg |= IXGBE_FCTRL_RFCE;
c44ade9e
JB
421 rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
422 break;
620fa036
MC
423#ifdef CONFIG_DCB
424 case ixgbe_fc_pfc:
425 goto out;
426 break;
427#endif /* CONFIG_DCB */
c44ade9e 428 default:
c44ade9e 429 hw_dbg(hw, "Flow control param set incorrectly\n");
539e5f02 430 ret_val = IXGBE_ERR_CONFIG;
0ecc061d 431 goto out;
c44ade9e
JB
432 break;
433 }
434
620fa036 435 /* Set 802.3x based flow control settings. */
2132d381 436 fctrl_reg |= IXGBE_FCTRL_DPF;
0ecc061d 437 IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl_reg);
c44ade9e
JB
438 IXGBE_WRITE_REG(hw, IXGBE_RMCS, rmcs_reg);
439
0ecc061d
PWJ
440 /* Set up and enable Rx high/low water mark thresholds, enable XON. */
441 if (hw->fc.current_mode & ixgbe_fc_tx_pause) {
16b61beb
JF
442 rx_pba_size = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(packetbuf_num));
443 rx_pba_size >>= IXGBE_RXPBSIZE_SHIFT;
444
445 reg = (rx_pba_size - hw->fc.low_water) << 6;
446 if (hw->fc.send_xon)
447 reg |= IXGBE_FCRTL_XONE;
0b0c2b31 448
16b61beb
JF
449 IXGBE_WRITE_REG(hw, IXGBE_FCRTL(packetbuf_num), reg);
450
0b0c2b31 451 reg = (rx_pba_size - hw->fc.high_water) << 6;
16b61beb 452 reg |= IXGBE_FCRTH_FCEN;
0ecc061d 453
16b61beb 454 IXGBE_WRITE_REG(hw, IXGBE_FCRTH(packetbuf_num), reg);
c44ade9e
JB
455 }
456
0ecc061d 457 /* Configure pause time (2 TCs per register) */
264857b8 458 reg = IXGBE_READ_REG(hw, IXGBE_FCTTV(packetbuf_num / 2));
0ecc061d
PWJ
459 if ((packetbuf_num & 1) == 0)
460 reg = (reg & 0xFFFF0000) | hw->fc.pause_time;
461 else
462 reg = (reg & 0x0000FFFF) | (hw->fc.pause_time << 16);
463 IXGBE_WRITE_REG(hw, IXGBE_FCTTV(packetbuf_num / 2), reg);
464
c44ade9e
JB
465 IXGBE_WRITE_REG(hw, IXGBE_FCRTV, (hw->fc.pause_time >> 1));
466
0ecc061d
PWJ
467out:
468 return ret_val;
469}
470
9a799d71 471/**
8620a103 472 * ixgbe_start_mac_link_82598 - Configures MAC link settings
9a799d71
AK
473 * @hw: pointer to hardware structure
474 *
475 * Configures link settings based on values in the ixgbe_hw struct.
476 * Restarts the link. Performs autonegotiation if needed.
477 **/
8620a103
MC
478static s32 ixgbe_start_mac_link_82598(struct ixgbe_hw *hw,
479 bool autoneg_wait_to_complete)
9a799d71
AK
480{
481 u32 autoc_reg;
482 u32 links_reg;
483 u32 i;
484 s32 status = 0;
485
9a799d71 486 /* Restart link */
3201d313 487 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
9a799d71
AK
488 autoc_reg |= IXGBE_AUTOC_AN_RESTART;
489 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
490
491 /* Only poll for autoneg to complete if specified to do so */
8620a103 492 if (autoneg_wait_to_complete) {
3201d313
PWJ
493 if ((autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
494 IXGBE_AUTOC_LMS_KX4_AN ||
495 (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
496 IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
9a799d71
AK
497 links_reg = 0; /* Just in case Autoneg time = 0 */
498 for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
499 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
500 if (links_reg & IXGBE_LINKS_KX_AN_COMP)
501 break;
502 msleep(100);
503 }
504 if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
505 status = IXGBE_ERR_AUTONEG_NOT_COMPLETE;
c44ade9e 506 hw_dbg(hw, "Autonegotiation did not complete.\n");
9a799d71
AK
507 }
508 }
509 }
510
9a799d71
AK
511 /* Add delay to filter out noises during initial link setup */
512 msleep(50);
513
514 return status;
515}
516
734e979f
MC
517/**
518 * ixgbe_validate_link_ready - Function looks for phy link
519 * @hw: pointer to hardware structure
520 *
521 * Function indicates success when phy link is available. If phy is not ready
522 * within 5 seconds of MAC indicating link, the function returns error.
523 **/
524static s32 ixgbe_validate_link_ready(struct ixgbe_hw *hw)
525{
526 u32 timeout;
527 u16 an_reg;
528
529 if (hw->device_id != IXGBE_DEV_ID_82598AT2)
530 return 0;
531
532 for (timeout = 0;
533 timeout < IXGBE_VALIDATE_LINK_READY_TIMEOUT; timeout++) {
534 hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN, &an_reg);
535
536 if ((an_reg & MDIO_AN_STAT1_COMPLETE) &&
537 (an_reg & MDIO_STAT1_LSTATUS))
538 break;
539
540 msleep(100);
541 }
542
543 if (timeout == IXGBE_VALIDATE_LINK_READY_TIMEOUT) {
544 hw_dbg(hw, "Link was indicated but link is down\n");
545 return IXGBE_ERR_LINK_SETUP;
546 }
547
548 return 0;
549}
550
9a799d71
AK
551/**
552 * ixgbe_check_mac_link_82598 - Get link/speed status
553 * @hw: pointer to hardware structure
554 * @speed: pointer to link speed
555 * @link_up: true is link is up, false otherwise
cf8280ee 556 * @link_up_wait_to_complete: bool used to wait for link up or not
9a799d71
AK
557 *
558 * Reads the links register to determine if link is up and the current speed
559 **/
b4617240
PW
560static s32 ixgbe_check_mac_link_82598(struct ixgbe_hw *hw,
561 ixgbe_link_speed *speed, bool *link_up,
562 bool link_up_wait_to_complete)
9a799d71
AK
563{
564 u32 links_reg;
cf8280ee 565 u32 i;
c4900be0
DS
566 u16 link_reg, adapt_comp_reg;
567
568 /*
569 * SERDES PHY requires us to read link status from register 0xC79F.
570 * Bit 0 set indicates link is up/ready; clear indicates link down.
571 * 0xC00C is read to check that the XAUI lanes are active. Bit 0
572 * clear indicates active; set indicates inactive.
573 */
574 if (hw->phy.type == ixgbe_phy_nl) {
6b73e10d
BH
575 hw->phy.ops.read_reg(hw, 0xC79F, MDIO_MMD_PMAPMD, &link_reg);
576 hw->phy.ops.read_reg(hw, 0xC79F, MDIO_MMD_PMAPMD, &link_reg);
577 hw->phy.ops.read_reg(hw, 0xC00C, MDIO_MMD_PMAPMD,
c4900be0
DS
578 &adapt_comp_reg);
579 if (link_up_wait_to_complete) {
580 for (i = 0; i < IXGBE_LINK_UP_TIME; i++) {
581 if ((link_reg & 1) &&
582 ((adapt_comp_reg & 1) == 0)) {
583 *link_up = true;
584 break;
585 } else {
586 *link_up = false;
587 }
588 msleep(100);
589 hw->phy.ops.read_reg(hw, 0xC79F,
6b73e10d 590 MDIO_MMD_PMAPMD,
c4900be0
DS
591 &link_reg);
592 hw->phy.ops.read_reg(hw, 0xC00C,
6b73e10d 593 MDIO_MMD_PMAPMD,
c4900be0
DS
594 &adapt_comp_reg);
595 }
596 } else {
597 if ((link_reg & 1) && ((adapt_comp_reg & 1) == 0))
598 *link_up = true;
599 else
600 *link_up = false;
601 }
602
603 if (*link_up == false)
604 goto out;
605 }
9a799d71
AK
606
607 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
cf8280ee
JB
608 if (link_up_wait_to_complete) {
609 for (i = 0; i < IXGBE_LINK_UP_TIME; i++) {
610 if (links_reg & IXGBE_LINKS_UP) {
611 *link_up = true;
612 break;
613 } else {
614 *link_up = false;
615 }
616 msleep(100);
617 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
618 }
619 } else {
620 if (links_reg & IXGBE_LINKS_UP)
621 *link_up = true;
622 else
623 *link_up = false;
624 }
9a799d71
AK
625
626 if (links_reg & IXGBE_LINKS_SPEED)
627 *speed = IXGBE_LINK_SPEED_10GB_FULL;
628 else
629 *speed = IXGBE_LINK_SPEED_1GB_FULL;
630
734e979f
MC
631 if ((hw->device_id == IXGBE_DEV_ID_82598AT2) && (*link_up == true) &&
632 (ixgbe_validate_link_ready(hw) != 0))
633 *link_up = false;
634
620fa036
MC
635 /* if link is down, zero out the current_mode */
636 if (*link_up == false) {
637 hw->fc.current_mode = ixgbe_fc_none;
638 hw->fc.fc_was_autonegged = false;
639 }
c4900be0 640out:
9a799d71
AK
641 return 0;
642}
643
644/**
8620a103 645 * ixgbe_setup_mac_link_82598 - Set MAC link speed
9a799d71
AK
646 * @hw: pointer to hardware structure
647 * @speed: new link speed
648 * @autoneg: true if auto-negotiation enabled
037c6d0a 649 * @autoneg_wait_to_complete: true when waiting for completion is needed
9a799d71
AK
650 *
651 * Set the link speed in the AUTOC register and restarts link.
652 **/
8620a103 653static s32 ixgbe_setup_mac_link_82598(struct ixgbe_hw *hw,
3201d313
PWJ
654 ixgbe_link_speed speed, bool autoneg,
655 bool autoneg_wait_to_complete)
9a799d71 656{
3201d313
PWJ
657 s32 status = 0;
658 ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN;
659 u32 curr_autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
660 u32 autoc = curr_autoc;
661 u32 link_mode = autoc & IXGBE_AUTOC_LMS_MASK;
9a799d71 662
3201d313
PWJ
663 /* Check to see if speed passed in is supported. */
664 ixgbe_get_link_capabilities_82598(hw, &link_capabilities, &autoneg);
665 speed &= link_capabilities;
666
667 if (speed == IXGBE_LINK_SPEED_UNKNOWN)
9a799d71 668 status = IXGBE_ERR_LINK_SETUP;
3201d313
PWJ
669
670 /* Set KX4/KX support according to speed requested */
671 else if (link_mode == IXGBE_AUTOC_LMS_KX4_AN ||
672 link_mode == IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
673 autoc &= ~IXGBE_AUTOC_KX4_KX_SUPP_MASK;
674 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
675 autoc |= IXGBE_AUTOC_KX4_SUPP;
676 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
677 autoc |= IXGBE_AUTOC_KX_SUPP;
678 if (autoc != curr_autoc)
679 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc);
9a799d71
AK
680 }
681
682 if (status == 0) {
9a799d71
AK
683 /*
684 * Setup and restart the link based on the new values in
685 * ixgbe_hw This will write the AUTOC register based on the new
686 * stored values
687 */
037c6d0a
ET
688 status = ixgbe_start_mac_link_82598(hw,
689 autoneg_wait_to_complete);
9a799d71
AK
690 }
691
692 return status;
693}
694
695
696/**
8620a103 697 * ixgbe_setup_copper_link_82598 - Set the PHY autoneg advertised field
9a799d71
AK
698 * @hw: pointer to hardware structure
699 * @speed: new link speed
700 * @autoneg: true if autonegotiation enabled
701 * @autoneg_wait_to_complete: true if waiting is needed to complete
702 *
703 * Sets the link speed in the AUTOC register in the MAC and restarts link.
704 **/
8620a103 705static s32 ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw,
b4617240
PW
706 ixgbe_link_speed speed,
707 bool autoneg,
708 bool autoneg_wait_to_complete)
9a799d71 709{
c44ade9e 710 s32 status;
9a799d71
AK
711
712 /* Setup the PHY according to input speed */
b4617240
PW
713 status = hw->phy.ops.setup_link_speed(hw, speed, autoneg,
714 autoneg_wait_to_complete);
3957d63d 715 /* Set up MAC */
8620a103 716 ixgbe_start_mac_link_82598(hw, autoneg_wait_to_complete);
9a799d71
AK
717
718 return status;
719}
720
721/**
722 * ixgbe_reset_hw_82598 - Performs hardware reset
723 * @hw: pointer to hardware structure
724 *
c44ade9e 725 * Resets the hardware by resetting the transmit and receive units, masks and
9a799d71
AK
726 * clears all interrupts, performing a PHY reset, and performing a link (MAC)
727 * reset.
728 **/
729static s32 ixgbe_reset_hw_82598(struct ixgbe_hw *hw)
730{
731 s32 status = 0;
8ca783ab 732 s32 phy_status = 0;
9a799d71
AK
733 u32 ctrl;
734 u32 gheccr;
735 u32 i;
736 u32 autoc;
737 u8 analog_val;
738
739 /* Call adapter stop to disable tx/rx and clear interrupts */
c44ade9e 740 hw->mac.ops.stop_adapter(hw);
9a799d71
AK
741
742 /*
c44ade9e
JB
743 * Power up the Atlas Tx lanes if they are currently powered down.
744 * Atlas Tx lanes are powered down for MAC loopback tests, but
9a799d71
AK
745 * they are not automatically restored on reset.
746 */
c44ade9e 747 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK, &analog_val);
9a799d71 748 if (analog_val & IXGBE_ATLAS_PDN_TX_REG_EN) {
c44ade9e
JB
749 /* Enable Tx Atlas so packets can be transmitted again */
750 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
751 &analog_val);
9a799d71 752 analog_val &= ~IXGBE_ATLAS_PDN_TX_REG_EN;
c44ade9e
JB
753 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
754 analog_val);
9a799d71 755
c44ade9e
JB
756 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
757 &analog_val);
9a799d71 758 analog_val &= ~IXGBE_ATLAS_PDN_TX_10G_QL_ALL;
c44ade9e
JB
759 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
760 analog_val);
9a799d71 761
c44ade9e
JB
762 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
763 &analog_val);
9a799d71 764 analog_val &= ~IXGBE_ATLAS_PDN_TX_1G_QL_ALL;
c44ade9e
JB
765 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
766 analog_val);
9a799d71 767
c44ade9e
JB
768 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
769 &analog_val);
9a799d71 770 analog_val &= ~IXGBE_ATLAS_PDN_TX_AN_QL_ALL;
c44ade9e
JB
771 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
772 analog_val);
9a799d71
AK
773 }
774
775 /* Reset PHY */
04f165ef
PW
776 if (hw->phy.reset_disable == false) {
777 /* PHY ops must be identified and initialized prior to reset */
778
779 /* Init PHY and function pointers, perform SFP setup */
8ca783ab
DS
780 phy_status = hw->phy.ops.init(hw);
781 if (phy_status == IXGBE_ERR_SFP_NOT_SUPPORTED)
04f165ef 782 goto reset_hw_out;
8ca783ab
DS
783 else if (phy_status == IXGBE_ERR_SFP_NOT_PRESENT)
784 goto no_phy_reset;
785
c44ade9e 786 hw->phy.ops.reset(hw);
04f165ef 787 }
9a799d71 788
8ca783ab 789no_phy_reset:
9a799d71
AK
790 /*
791 * Prevent the PCI-E bus from from hanging by disabling PCI-E master
792 * access and verify no pending requests before reset
793 */
a4297dc2 794 ixgbe_disable_pcie_master(hw);
9a799d71 795
a4297dc2 796mac_reset_top:
9a799d71
AK
797 /*
798 * Issue global reset to the MAC. This needs to be a SW reset.
799 * If link reset is used, it might reset the MAC when mng is using it
800 */
801 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
802 IXGBE_WRITE_REG(hw, IXGBE_CTRL, (ctrl | IXGBE_CTRL_RST));
803 IXGBE_WRITE_FLUSH(hw);
804
805 /* Poll for reset bit to self-clear indicating reset is complete */
806 for (i = 0; i < 10; i++) {
807 udelay(1);
808 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
809 if (!(ctrl & IXGBE_CTRL_RST))
810 break;
811 }
812 if (ctrl & IXGBE_CTRL_RST) {
813 status = IXGBE_ERR_RESET_FAILED;
814 hw_dbg(hw, "Reset polling failed to complete.\n");
815 }
816
a4297dc2
ET
817 /*
818 * Double resets are required for recovery from certain error
819 * conditions. Between resets, it is necessary to stall to allow time
820 * for any pending HW events to complete. We use 1usec since that is
821 * what is needed for ixgbe_disable_pcie_master(). The second reset
822 * then clears out any effects of those events.
823 */
824 if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
825 hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
826 udelay(1);
827 goto mac_reset_top;
828 }
829
9a799d71
AK
830 msleep(50);
831
832 gheccr = IXGBE_READ_REG(hw, IXGBE_GHECCR);
833 gheccr &= ~((1 << 21) | (1 << 18) | (1 << 9) | (1 << 6));
834 IXGBE_WRITE_REG(hw, IXGBE_GHECCR, gheccr);
835
836 /*
3201d313
PWJ
837 * Store the original AUTOC value if it has not been
838 * stored off yet. Otherwise restore the stored original
839 * AUTOC value since the reset operation sets back to deaults.
9a799d71
AK
840 */
841 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
3201d313
PWJ
842 if (hw->mac.orig_link_settings_stored == false) {
843 hw->mac.orig_autoc = autoc;
844 hw->mac.orig_link_settings_stored = true;
845 } else if (autoc != hw->mac.orig_autoc) {
846 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, hw->mac.orig_autoc);
9a799d71
AK
847 }
848
278675d8
ET
849 /* Store the permanent mac address */
850 hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
851
aca6bee7
WJP
852 /*
853 * Store MAC address from RAR0, clear receive address registers, and
854 * clear the multicast table
855 */
856 hw->mac.ops.init_rx_addrs(hw);
857
04f165ef 858reset_hw_out:
8ca783ab
DS
859 if (phy_status)
860 status = phy_status;
861
9a799d71
AK
862 return status;
863}
864
c44ade9e
JB
865/**
866 * ixgbe_set_vmdq_82598 - Associate a VMDq set index with a rx address
867 * @hw: pointer to hardware struct
868 * @rar: receive address register index to associate with a VMDq index
869 * @vmdq: VMDq set index
870 **/
e855aac8 871static s32 ixgbe_set_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
c44ade9e
JB
872{
873 u32 rar_high;
c700f4e6
ET
874 u32 rar_entries = hw->mac.num_rar_entries;
875
876 /* Make sure we are using a valid rar index range */
877 if (rar >= rar_entries) {
878 hw_dbg(hw, "RAR index %d is out of range.\n", rar);
879 return IXGBE_ERR_INVALID_ARGUMENT;
880 }
c44ade9e
JB
881
882 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
883 rar_high &= ~IXGBE_RAH_VIND_MASK;
884 rar_high |= ((vmdq << IXGBE_RAH_VIND_SHIFT) & IXGBE_RAH_VIND_MASK);
885 IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
886 return 0;
887}
888
889/**
890 * ixgbe_clear_vmdq_82598 - Disassociate a VMDq set index from an rx address
891 * @hw: pointer to hardware struct
892 * @rar: receive address register index to associate with a VMDq index
893 * @vmdq: VMDq clear index (not used in 82598, but elsewhere)
894 **/
895static s32 ixgbe_clear_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
896{
897 u32 rar_high;
898 u32 rar_entries = hw->mac.num_rar_entries;
899
c700f4e6
ET
900
901 /* Make sure we are using a valid rar index range */
902 if (rar >= rar_entries) {
c44ade9e 903 hw_dbg(hw, "RAR index %d is out of range.\n", rar);
c700f4e6
ET
904 return IXGBE_ERR_INVALID_ARGUMENT;
905 }
906
907 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
908 if (rar_high & IXGBE_RAH_VIND_MASK) {
909 rar_high &= ~IXGBE_RAH_VIND_MASK;
910 IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
c44ade9e
JB
911 }
912
913 return 0;
914}
915
916/**
917 * ixgbe_set_vfta_82598 - Set VLAN filter table
918 * @hw: pointer to hardware structure
919 * @vlan: VLAN id to write to VLAN filter
920 * @vind: VMDq output index that maps queue to VLAN id in VFTA
921 * @vlan_on: boolean flag to turn on/off VLAN in VFTA
922 *
923 * Turn on/off specified VLAN in the VLAN filter table.
924 **/
e855aac8
HE
925static s32 ixgbe_set_vfta_82598(struct ixgbe_hw *hw, u32 vlan, u32 vind,
926 bool vlan_on)
c44ade9e
JB
927{
928 u32 regindex;
929 u32 bitindex;
930 u32 bits;
931 u32 vftabyte;
932
933 if (vlan > 4095)
934 return IXGBE_ERR_PARAM;
935
936 /* Determine 32-bit word position in array */
937 regindex = (vlan >> 5) & 0x7F; /* upper seven bits */
938
939 /* Determine the location of the (VMD) queue index */
940 vftabyte = ((vlan >> 3) & 0x03); /* bits (4:3) indicating byte array */
941 bitindex = (vlan & 0x7) << 2; /* lower 3 bits indicate nibble */
942
943 /* Set the nibble for VMD queue index */
944 bits = IXGBE_READ_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex));
945 bits &= (~(0x0F << bitindex));
946 bits |= (vind << bitindex);
947 IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex), bits);
948
949 /* Determine the location of the bit for this VLAN id */
950 bitindex = vlan & 0x1F; /* lower five bits */
951
952 bits = IXGBE_READ_REG(hw, IXGBE_VFTA(regindex));
953 if (vlan_on)
954 /* Turn on this VLAN id */
955 bits |= (1 << bitindex);
956 else
957 /* Turn off this VLAN id */
958 bits &= ~(1 << bitindex);
959 IXGBE_WRITE_REG(hw, IXGBE_VFTA(regindex), bits);
960
961 return 0;
962}
963
964/**
965 * ixgbe_clear_vfta_82598 - Clear VLAN filter table
966 * @hw: pointer to hardware structure
967 *
968 * Clears the VLAN filer table, and the VMDq index associated with the filter
969 **/
970static s32 ixgbe_clear_vfta_82598(struct ixgbe_hw *hw)
971{
972 u32 offset;
973 u32 vlanbyte;
974
975 for (offset = 0; offset < hw->mac.vft_size; offset++)
976 IXGBE_WRITE_REG(hw, IXGBE_VFTA(offset), 0);
977
978 for (vlanbyte = 0; vlanbyte < 4; vlanbyte++)
979 for (offset = 0; offset < hw->mac.vft_size; offset++)
980 IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vlanbyte, offset),
b4617240 981 0);
c44ade9e
JB
982
983 return 0;
984}
985
c44ade9e
JB
986/**
987 * ixgbe_read_analog_reg8_82598 - Reads 8 bit Atlas analog register
988 * @hw: pointer to hardware structure
989 * @reg: analog register to read
990 * @val: read value
991 *
992 * Performs read operation to Atlas analog register specified.
993 **/
e855aac8 994static s32 ixgbe_read_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 *val)
c44ade9e
JB
995{
996 u32 atlas_ctl;
997
998 IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL,
999 IXGBE_ATLASCTL_WRITE_CMD | (reg << 8));
1000 IXGBE_WRITE_FLUSH(hw);
1001 udelay(10);
1002 atlas_ctl = IXGBE_READ_REG(hw, IXGBE_ATLASCTL);
1003 *val = (u8)atlas_ctl;
1004
1005 return 0;
1006}
1007
1008/**
1009 * ixgbe_write_analog_reg8_82598 - Writes 8 bit Atlas analog register
1010 * @hw: pointer to hardware structure
1011 * @reg: atlas register to write
1012 * @val: value to write
1013 *
1014 * Performs write operation to Atlas analog register specified.
1015 **/
e855aac8 1016static s32 ixgbe_write_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 val)
c44ade9e
JB
1017{
1018 u32 atlas_ctl;
1019
1020 atlas_ctl = (reg << 8) | val;
1021 IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL, atlas_ctl);
1022 IXGBE_WRITE_FLUSH(hw);
1023 udelay(10);
1024
1025 return 0;
1026}
1027
c4900be0 1028/**
8c7bea32 1029 * ixgbe_read_i2c_eeprom_82598 - Reads 8 bit word over I2C interface.
c4900be0
DS
1030 * @hw: pointer to hardware structure
1031 * @byte_offset: EEPROM byte offset to read
1032 * @eeprom_data: value read
1033 *
8c7bea32 1034 * Performs 8 byte read operation to SFP module's EEPROM over I2C interface.
c4900be0 1035 **/
e855aac8
HE
1036static s32 ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
1037 u8 *eeprom_data)
c4900be0
DS
1038{
1039 s32 status = 0;
1040 u16 sfp_addr = 0;
1041 u16 sfp_data = 0;
1042 u16 sfp_stat = 0;
1043 u32 i;
1044
1045 if (hw->phy.type == ixgbe_phy_nl) {
1046 /*
1047 * phy SDA/SCL registers are at addresses 0xC30A to
1048 * 0xC30D. These registers are used to talk to the SFP+
1049 * module's EEPROM through the SDA/SCL (I2C) interface.
1050 */
1051 sfp_addr = (IXGBE_I2C_EEPROM_DEV_ADDR << 8) + byte_offset;
1052 sfp_addr = (sfp_addr | IXGBE_I2C_EEPROM_READ_MASK);
1053 hw->phy.ops.write_reg(hw,
1054 IXGBE_MDIO_PMA_PMD_SDA_SCL_ADDR,
6b73e10d 1055 MDIO_MMD_PMAPMD,
c4900be0
DS
1056 sfp_addr);
1057
1058 /* Poll status */
1059 for (i = 0; i < 100; i++) {
1060 hw->phy.ops.read_reg(hw,
1061 IXGBE_MDIO_PMA_PMD_SDA_SCL_STAT,
6b73e10d 1062 MDIO_MMD_PMAPMD,
c4900be0
DS
1063 &sfp_stat);
1064 sfp_stat = sfp_stat & IXGBE_I2C_EEPROM_STATUS_MASK;
1065 if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_IN_PROGRESS)
1066 break;
1067 msleep(10);
1068 }
1069
1070 if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_PASS) {
1071 hw_dbg(hw, "EEPROM read did not pass.\n");
1072 status = IXGBE_ERR_SFP_NOT_PRESENT;
1073 goto out;
1074 }
1075
1076 /* Read data */
1077 hw->phy.ops.read_reg(hw, IXGBE_MDIO_PMA_PMD_SDA_SCL_DATA,
6b73e10d 1078 MDIO_MMD_PMAPMD, &sfp_data);
c4900be0
DS
1079
1080 *eeprom_data = (u8)(sfp_data >> 8);
1081 } else {
1082 status = IXGBE_ERR_PHY;
1083 goto out;
1084 }
1085
1086out:
1087 return status;
1088}
1089
c44ade9e
JB
1090/**
1091 * ixgbe_get_supported_physical_layer_82598 - Returns physical layer type
1092 * @hw: pointer to hardware structure
1093 *
1094 * Determines physical layer capabilities of the current configuration.
1095 **/
11afc1b1 1096static u32 ixgbe_get_supported_physical_layer_82598(struct ixgbe_hw *hw)
c44ade9e 1097{
11afc1b1 1098 u32 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
04193058
PWJ
1099 u32 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
1100 u32 pma_pmd_10g = autoc & IXGBE_AUTOC_10G_PMA_PMD_MASK;
1101 u32 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;
1102 u16 ext_ability = 0;
1103
1104 hw->phy.ops.identify(hw);
1105
1106 /* Copper PHY must be checked before AUTOC LMS to determine correct
1107 * physical layer because 10GBase-T PHYs use LMS = KX4/KX */
037c6d0a
ET
1108 switch (hw->phy.type) {
1109 case ixgbe_phy_tn:
1110 case ixgbe_phy_aq:
1111 case ixgbe_phy_cu_unknown:
1112 hw->phy.ops.read_reg(hw, MDIO_PMA_EXTABLE,
1113 MDIO_MMD_PMAPMD, &ext_ability);
6b73e10d 1114 if (ext_ability & MDIO_PMA_EXTABLE_10GBT)
04193058 1115 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_T;
6b73e10d 1116 if (ext_ability & MDIO_PMA_EXTABLE_1000BT)
04193058 1117 physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_T;
6b73e10d 1118 if (ext_ability & MDIO_PMA_EXTABLE_100BTX)
04193058
PWJ
1119 physical_layer |= IXGBE_PHYSICAL_LAYER_100BASE_TX;
1120 goto out;
037c6d0a
ET
1121 default:
1122 break;
04193058 1123 }
c44ade9e 1124
04193058
PWJ
1125 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
1126 case IXGBE_AUTOC_LMS_1G_AN:
1127 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
1128 if (pma_pmd_1g == IXGBE_AUTOC_1G_KX)
1129 physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_KX;
1130 else
1131 physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_BX;
c4900be0 1132 break;
04193058
PWJ
1133 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
1134 if (pma_pmd_10g == IXGBE_AUTOC_10G_CX4)
1135 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_CX4;
1136 else if (pma_pmd_10g == IXGBE_AUTOC_10G_KX4)
1137 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
1138 else /* XAUI */
1139 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
c44ade9e 1140 break;
04193058
PWJ
1141 case IXGBE_AUTOC_LMS_KX4_AN:
1142 case IXGBE_AUTOC_LMS_KX4_AN_1G_AN:
1143 if (autoc & IXGBE_AUTOC_KX_SUPP)
1144 physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_KX;
1145 if (autoc & IXGBE_AUTOC_KX4_SUPP)
1146 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
c44ade9e 1147 break;
04193058 1148 default:
0befdb3e 1149 break;
04193058
PWJ
1150 }
1151
1152 if (hw->phy.type == ixgbe_phy_nl) {
c4900be0
DS
1153 hw->phy.ops.identify_sfp(hw);
1154
1155 switch (hw->phy.sfp_type) {
1156 case ixgbe_sfp_type_da_cu:
1157 physical_layer = IXGBE_PHYSICAL_LAYER_SFP_PLUS_CU;
1158 break;
1159 case ixgbe_sfp_type_sr:
1160 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_SR;
1161 break;
1162 case ixgbe_sfp_type_lr:
1163 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_LR;
1164 break;
1165 default:
1166 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
1167 break;
1168 }
04193058 1169 }
c44ade9e 1170
04193058
PWJ
1171 switch (hw->device_id) {
1172 case IXGBE_DEV_ID_82598_DA_DUAL_PORT:
1173 physical_layer = IXGBE_PHYSICAL_LAYER_SFP_PLUS_CU;
1174 break;
1175 case IXGBE_DEV_ID_82598AF_DUAL_PORT:
1176 case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
1177 case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM:
1178 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_SR;
1179 break;
1180 case IXGBE_DEV_ID_82598EB_XF_LR:
1181 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_LR;
1182 break;
c44ade9e 1183 default:
c44ade9e
JB
1184 break;
1185 }
1186
04193058 1187out:
c44ade9e
JB
1188 return physical_layer;
1189}
1190
9a799d71 1191static struct ixgbe_mac_operations mac_ops_82598 = {
c44ade9e
JB
1192 .init_hw = &ixgbe_init_hw_generic,
1193 .reset_hw = &ixgbe_reset_hw_82598,
202ff1ec 1194 .start_hw = &ixgbe_start_hw_82598,
c44ade9e 1195 .clear_hw_cntrs = &ixgbe_clear_hw_cntrs_generic,
9a799d71 1196 .get_media_type = &ixgbe_get_media_type_82598,
c44ade9e 1197 .get_supported_physical_layer = &ixgbe_get_supported_physical_layer_82598,
11afc1b1 1198 .enable_rx_dma = &ixgbe_enable_rx_dma_generic,
c44ade9e
JB
1199 .get_mac_addr = &ixgbe_get_mac_addr_generic,
1200 .stop_adapter = &ixgbe_stop_adapter_generic,
11afc1b1
PW
1201 .get_bus_info = &ixgbe_get_bus_info_generic,
1202 .set_lan_id = &ixgbe_set_lan_id_multi_port_pcie,
c44ade9e
JB
1203 .read_analog_reg8 = &ixgbe_read_analog_reg8_82598,
1204 .write_analog_reg8 = &ixgbe_write_analog_reg8_82598,
3957d63d 1205 .setup_link = &ixgbe_setup_mac_link_82598,
c44ade9e
JB
1206 .check_link = &ixgbe_check_mac_link_82598,
1207 .get_link_capabilities = &ixgbe_get_link_capabilities_82598,
1208 .led_on = &ixgbe_led_on_generic,
1209 .led_off = &ixgbe_led_off_generic,
87c12017
PW
1210 .blink_led_start = &ixgbe_blink_led_start_generic,
1211 .blink_led_stop = &ixgbe_blink_led_stop_generic,
c44ade9e
JB
1212 .set_rar = &ixgbe_set_rar_generic,
1213 .clear_rar = &ixgbe_clear_rar_generic,
1214 .set_vmdq = &ixgbe_set_vmdq_82598,
1215 .clear_vmdq = &ixgbe_clear_vmdq_82598,
1216 .init_rx_addrs = &ixgbe_init_rx_addrs_generic,
c44ade9e
JB
1217 .update_mc_addr_list = &ixgbe_update_mc_addr_list_generic,
1218 .enable_mc = &ixgbe_enable_mc_generic,
1219 .disable_mc = &ixgbe_disable_mc_generic,
1220 .clear_vfta = &ixgbe_clear_vfta_82598,
1221 .set_vfta = &ixgbe_set_vfta_82598,
620fa036 1222 .fc_enable = &ixgbe_fc_enable_82598,
5e655105
DS
1223 .acquire_swfw_sync = &ixgbe_acquire_swfw_sync,
1224 .release_swfw_sync = &ixgbe_release_swfw_sync,
c44ade9e
JB
1225};
1226
1227static struct ixgbe_eeprom_operations eeprom_ops_82598 = {
1228 .init_params = &ixgbe_init_eeprom_params_generic,
21ce849b 1229 .read = &ixgbe_read_eerd_generic,
a391f1d5 1230 .calc_checksum = &ixgbe_calc_eeprom_checksum_generic,
c44ade9e
JB
1231 .validate_checksum = &ixgbe_validate_eeprom_checksum_generic,
1232 .update_checksum = &ixgbe_update_eeprom_checksum_generic,
1233};
1234
1235static struct ixgbe_phy_operations phy_ops_82598 = {
1236 .identify = &ixgbe_identify_phy_generic,
c4900be0 1237 .identify_sfp = &ixgbe_identify_sfp_module_generic,
04f165ef 1238 .init = &ixgbe_init_phy_ops_82598,
c44ade9e
JB
1239 .reset = &ixgbe_reset_phy_generic,
1240 .read_reg = &ixgbe_read_phy_reg_generic,
1241 .write_reg = &ixgbe_write_phy_reg_generic,
1242 .setup_link = &ixgbe_setup_phy_link_generic,
1243 .setup_link_speed = &ixgbe_setup_phy_link_speed_generic,
c4900be0 1244 .read_i2c_eeprom = &ixgbe_read_i2c_eeprom_82598,
119fc60a 1245 .check_overtemp = &ixgbe_tn_check_overtemp,
9a799d71
AK
1246};
1247
3957d63d 1248struct ixgbe_info ixgbe_82598_info = {
9a799d71
AK
1249 .mac = ixgbe_mac_82598EB,
1250 .get_invariants = &ixgbe_get_invariants_82598,
1251 .mac_ops = &mac_ops_82598,
c44ade9e
JB
1252 .eeprom_ops = &eeprom_ops_82598,
1253 .phy_ops = &phy_ops_82598,
9a799d71
AK
1254};
1255