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