ixgbe: Make return values more direct
[linux-2.6-block.git] / drivers / net / ethernet / intel / ixgbe / ixgbe_82598.c
CommitLineData
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1/*******************************************************************************
2
3 Intel 10 Gigabit PCI Express Linux driver
14438464 4 Copyright(c) 1999 - 2014 Intel Corporation.
9a799d71
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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:
b89aae71 23 Linux NICS <linux.nics@intel.com>
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24 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
25 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
26
27*******************************************************************************/
28
29#include <linux/pci.h>
30#include <linux/delay.h>
31#include <linux/sched.h>
32
9c8eb720 33#include "ixgbe.h"
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34#include "ixgbe_phy.h"
35
36#define IXGBE_82598_MAX_TX_QUEUES 32
37#define IXGBE_82598_MAX_RX_QUEUES 64
38#define IXGBE_82598_RAR_ENTRIES 16
2c5645cf
CL
39#define IXGBE_82598_MC_TBL_SIZE 128
40#define IXGBE_82598_VFT_TBL_SIZE 128
e09ad236 41#define IXGBE_82598_RX_PB_SIZE 512
9a799d71 42
8620a103 43static s32 ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw,
e7cf745b
JK
44 ixgbe_link_speed speed,
45 bool autoneg_wait_to_complete);
c4900be0 46static s32 ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
e7cf745b 47 u8 *eeprom_data);
9a799d71 48
202ff1ec
MC
49/**
50 * ixgbe_set_pcie_completion_timeout - set pci-e completion timeout
51 * @hw: pointer to the HW structure
52 *
53 * The defaults for 82598 should be in the range of 50us to 50ms,
54 * however the hardware default for these parts is 500us to 1ms which is less
55 * than the 10ms recommended by the pci-e spec. To address this we need to
56 * increase the value to either 10ms to 250ms for capability version 1 config,
57 * or 16ms to 55ms for version 2.
58 **/
7b25cdba 59static void ixgbe_set_pcie_completion_timeout(struct ixgbe_hw *hw)
202ff1ec 60{
202ff1ec
MC
61 u32 gcr = IXGBE_READ_REG(hw, IXGBE_GCR);
62 u16 pcie_devctl2;
63
14438464
MR
64 if (ixgbe_removed(hw->hw_addr))
65 return;
66
202ff1ec
MC
67 /* only take action if timeout value is defaulted to 0 */
68 if (gcr & IXGBE_GCR_CMPL_TMOUT_MASK)
69 goto out;
70
71 /*
72 * if capababilities version is type 1 we can write the
73 * timeout of 10ms to 250ms through the GCR register
74 */
75 if (!(gcr & IXGBE_GCR_CAP_VER2)) {
76 gcr |= IXGBE_GCR_CMPL_TMOUT_10ms;
77 goto out;
78 }
79
80 /*
81 * for version 2 capabilities we need to write the config space
82 * directly in order to set the completion timeout value for
83 * 16ms to 55ms
84 */
14438464 85 pcie_devctl2 = ixgbe_read_pci_cfg_word(hw, IXGBE_PCI_DEVICE_CONTROL2);
202ff1ec 86 pcie_devctl2 |= IXGBE_PCI_DEVICE_CONTROL2_16ms;
ed19231c 87 ixgbe_write_pci_cfg_word(hw, IXGBE_PCI_DEVICE_CONTROL2, pcie_devctl2);
202ff1ec
MC
88out:
89 /* disable completion timeout resend */
90 gcr &= ~IXGBE_GCR_CMPL_TMOUT_RESEND;
91 IXGBE_WRITE_REG(hw, IXGBE_GCR, gcr);
92}
93
9a799d71 94static s32 ixgbe_get_invariants_82598(struct ixgbe_hw *hw)
04f165ef
PW
95{
96 struct ixgbe_mac_info *mac = &hw->mac;
97
98 /* Call PHY identify routine to get the phy type */
99 ixgbe_identify_phy_generic(hw);
100
101 mac->mcft_size = IXGBE_82598_MC_TBL_SIZE;
102 mac->vft_size = IXGBE_82598_VFT_TBL_SIZE;
103 mac->num_rar_entries = IXGBE_82598_RAR_ENTRIES;
6997d4d1 104 mac->rx_pb_size = IXGBE_82598_RX_PB_SIZE;
04f165ef
PW
105 mac->max_rx_queues = IXGBE_82598_MAX_RX_QUEUES;
106 mac->max_tx_queues = IXGBE_82598_MAX_TX_QUEUES;
71161302 107 mac->max_msix_vectors = ixgbe_get_pcie_msix_count_generic(hw);
04f165ef
PW
108
109 return 0;
110}
111
112/**
113 * ixgbe_init_phy_ops_82598 - PHY/SFP specific init
114 * @hw: pointer to hardware structure
115 *
116 * Initialize any function pointers that were not able to be
117 * set during get_invariants because the PHY/SFP type was
118 * not known. Perform the SFP init if necessary.
119 *
120 **/
7b25cdba 121static s32 ixgbe_init_phy_ops_82598(struct ixgbe_hw *hw)
9a799d71 122{
c44ade9e
JB
123 struct ixgbe_mac_info *mac = &hw->mac;
124 struct ixgbe_phy_info *phy = &hw->phy;
e90dd264 125 s32 ret_val;
c4900be0 126 u16 list_offset, data_offset;
c44ade9e 127
04f165ef
PW
128 /* Identify the PHY */
129 phy->ops.identify(hw);
03cfa205 130
04f165ef
PW
131 /* Overwrite the link function pointers if copper PHY */
132 if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper) {
133 mac->ops.setup_link = &ixgbe_setup_copper_link_82598;
04f165ef 134 mac->ops.get_link_capabilities =
a391f1d5 135 &ixgbe_get_copper_link_capabilities_generic;
04f165ef 136 }
c44ade9e 137
04f165ef 138 switch (hw->phy.type) {
0befdb3e 139 case ixgbe_phy_tn:
9dda1736 140 phy->ops.setup_link = &ixgbe_setup_phy_link_tnx;
0befdb3e
JB
141 phy->ops.check_link = &ixgbe_check_phy_link_tnx;
142 phy->ops.get_firmware_version =
e7cf745b 143 &ixgbe_get_phy_firmware_version_tnx;
0befdb3e 144 break;
c4900be0
DS
145 case ixgbe_phy_nl:
146 phy->ops.reset = &ixgbe_reset_phy_nl;
147
148 /* Call SFP+ identify routine to get the SFP+ module type */
149 ret_val = phy->ops.identify_sfp(hw);
e90dd264
MR
150 if (ret_val)
151 return ret_val;
152 if (hw->phy.sfp_type == ixgbe_sfp_type_unknown)
153 return IXGBE_ERR_SFP_NOT_SUPPORTED;
c4900be0
DS
154
155 /* Check to see if SFP+ module is supported */
156 ret_val = ixgbe_get_sfp_init_sequence_offsets(hw,
e7cf745b
JK
157 &list_offset,
158 &data_offset);
e90dd264
MR
159 if (ret_val)
160 return IXGBE_ERR_SFP_NOT_SUPPORTED;
c4900be0 161 break;
c44ade9e
JB
162 default:
163 break;
164 }
165
e90dd264 166 return 0;
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167}
168
202ff1ec
MC
169/**
170 * ixgbe_start_hw_82598 - Prepare hardware for Tx/Rx
171 * @hw: pointer to hardware structure
172 *
173 * Starts the hardware using the generic start_hw function.
3d5c5207
ET
174 * Disables relaxed ordering Then set pcie completion timeout
175 *
202ff1ec 176 **/
7b25cdba 177static s32 ixgbe_start_hw_82598(struct ixgbe_hw *hw)
202ff1ec 178{
3d5c5207
ET
179 u32 regval;
180 u32 i;
e90dd264 181 s32 ret_val;
202ff1ec
MC
182
183 ret_val = ixgbe_start_hw_generic(hw);
184
3d5c5207
ET
185 /* Disable relaxed ordering */
186 for (i = 0; ((i < hw->mac.max_tx_queues) &&
187 (i < IXGBE_DCA_MAX_QUEUES_82598)); i++) {
188 regval = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL(i));
bdda1a61 189 regval &= ~IXGBE_DCA_TXCTRL_DESC_WRO_EN;
3d5c5207
ET
190 IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL(i), regval);
191 }
192
193 for (i = 0; ((i < hw->mac.max_rx_queues) &&
194 (i < IXGBE_DCA_MAX_QUEUES_82598)); i++) {
195 regval = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i));
bdda1a61
AD
196 regval &= ~(IXGBE_DCA_RXCTRL_DATA_WRO_EN |
197 IXGBE_DCA_RXCTRL_HEAD_WRO_EN);
3d5c5207
ET
198 IXGBE_WRITE_REG(hw, IXGBE_DCA_RXCTRL(i), regval);
199 }
200
e90dd264
MR
201 if (ret_val)
202 return ret_val;
203
202ff1ec 204 /* set the completion timeout for interface */
e90dd264 205 ixgbe_set_pcie_completion_timeout(hw);
202ff1ec 206
e90dd264 207 return 0;
202ff1ec
MC
208}
209
9a799d71 210/**
c44ade9e 211 * ixgbe_get_link_capabilities_82598 - Determines link capabilities
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212 * @hw: pointer to hardware structure
213 * @speed: pointer to link speed
214 * @autoneg: boolean auto-negotiation value
215 *
c44ade9e 216 * Determines the link capabilities by reading the AUTOC register.
9a799d71 217 **/
c44ade9e 218static s32 ixgbe_get_link_capabilities_82598(struct ixgbe_hw *hw,
e7cf745b
JK
219 ixgbe_link_speed *speed,
220 bool *autoneg)
9a799d71 221{
1eb99d5a 222 u32 autoc = 0;
9a799d71 223
3201d313
PWJ
224 /*
225 * Determine link capabilities based on the stored value of AUTOC,
1eb99d5a
PW
226 * which represents EEPROM defaults. If AUTOC value has not been
227 * stored, use the current register value.
3201d313 228 */
1eb99d5a
PW
229 if (hw->mac.orig_link_settings_stored)
230 autoc = hw->mac.orig_autoc;
231 else
232 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
233
234 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
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235 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
236 *speed = IXGBE_LINK_SPEED_1GB_FULL;
237 *autoneg = false;
238 break;
239
240 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
241 *speed = IXGBE_LINK_SPEED_10GB_FULL;
242 *autoneg = false;
243 break;
244
245 case IXGBE_AUTOC_LMS_1G_AN:
246 *speed = IXGBE_LINK_SPEED_1GB_FULL;
247 *autoneg = true;
248 break;
249
250 case IXGBE_AUTOC_LMS_KX4_AN:
251 case IXGBE_AUTOC_LMS_KX4_AN_1G_AN:
252 *speed = IXGBE_LINK_SPEED_UNKNOWN;
1eb99d5a 253 if (autoc & IXGBE_AUTOC_KX4_SUPP)
9a799d71 254 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
1eb99d5a 255 if (autoc & IXGBE_AUTOC_KX_SUPP)
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256 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
257 *autoneg = true;
258 break;
259
260 default:
e90dd264 261 return IXGBE_ERR_LINK_SETUP;
9a799d71
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262 }
263
e90dd264 264 return 0;
9a799d71
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265}
266
9a799d71
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267/**
268 * ixgbe_get_media_type_82598 - Determines media type
269 * @hw: pointer to hardware structure
270 *
271 * Returns the media type (fiber, copper, backplane)
272 **/
273static enum ixgbe_media_type ixgbe_get_media_type_82598(struct ixgbe_hw *hw)
274{
037c6d0a
ET
275 /* Detect if there is a copper PHY attached. */
276 switch (hw->phy.type) {
277 case ixgbe_phy_cu_unknown:
278 case ixgbe_phy_tn:
e90dd264
MR
279 return ixgbe_media_type_copper;
280
037c6d0a
ET
281 default:
282 break;
283 }
284
9a799d71
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285 /* Media type for I82598 is based on device ID */
286 switch (hw->device_id) {
1e336d0f 287 case IXGBE_DEV_ID_82598:
2f21bdd3 288 case IXGBE_DEV_ID_82598_BX:
037c6d0a 289 /* Default device ID is mezzanine card KX/KX4 */
e90dd264
MR
290 return ixgbe_media_type_backplane;
291
9a799d71
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292 case IXGBE_DEV_ID_82598AF_DUAL_PORT:
293 case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
c4900be0
DS
294 case IXGBE_DEV_ID_82598_DA_DUAL_PORT:
295 case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM:
b95f5fcb 296 case IXGBE_DEV_ID_82598EB_XF_LR:
c4900be0 297 case IXGBE_DEV_ID_82598EB_SFP_LOM:
e90dd264
MR
298 return ixgbe_media_type_fiber;
299
6b1be199
PWJ
300 case IXGBE_DEV_ID_82598EB_CX4:
301 case IXGBE_DEV_ID_82598_CX4_DUAL_PORT:
e90dd264
MR
302 return ixgbe_media_type_cx4;
303
0befdb3e 304 case IXGBE_DEV_ID_82598AT:
3845bec0 305 case IXGBE_DEV_ID_82598AT2:
e90dd264
MR
306 return ixgbe_media_type_copper;
307
9a799d71 308 default:
e90dd264 309 return ixgbe_media_type_unknown;
9a799d71 310 }
9a799d71
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311}
312
c44ade9e 313/**
0ecc061d 314 * ixgbe_fc_enable_82598 - Enable flow control
c44ade9e 315 * @hw: pointer to hardware structure
c44ade9e 316 *
0ecc061d 317 * Enable flow control according to the current settings.
c44ade9e 318 **/
041441d0 319static s32 ixgbe_fc_enable_82598(struct ixgbe_hw *hw)
c44ade9e 320{
0ecc061d 321 u32 fctrl_reg;
c44ade9e 322 u32 rmcs_reg;
0ecc061d 323 u32 reg;
041441d0 324 u32 fcrtl, fcrth;
a626e847 325 u32 link_speed = 0;
041441d0 326 int i;
a626e847 327 bool link_up;
c44ade9e 328
e5776620 329 /* Validate the water mark configuration */
e90dd264
MR
330 if (!hw->fc.pause_time)
331 return IXGBE_ERR_INVALID_LINK_SETTINGS;
620fa036 332
e5776620
JK
333 /* Low water mark of zero causes XOFF floods */
334 for (i = 0; i < MAX_TRAFFIC_CLASS; i++) {
335 if ((hw->fc.current_mode & ixgbe_fc_tx_pause) &&
336 hw->fc.high_water[i]) {
337 if (!hw->fc.low_water[i] ||
338 hw->fc.low_water[i] >= hw->fc.high_water[i]) {
339 hw_dbg(hw, "Invalid water mark configuration\n");
e90dd264 340 return IXGBE_ERR_INVALID_LINK_SETTINGS;
e5776620
JK
341 }
342 }
343 }
344
a626e847
DS
345 /*
346 * On 82598 having Rx FC on causes resets while doing 1G
347 * so if it's on turn it off once we know link_speed. For
348 * more details see 82598 Specification update.
349 */
350 hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
351 if (link_up && link_speed == IXGBE_LINK_SPEED_1GB_FULL) {
352 switch (hw->fc.requested_mode) {
353 case ixgbe_fc_full:
354 hw->fc.requested_mode = ixgbe_fc_tx_pause;
355 break;
356 case ixgbe_fc_rx_pause:
357 hw->fc.requested_mode = ixgbe_fc_none;
358 break;
359 default:
360 /* no change */
361 break;
362 }
363 }
364
620fa036 365 /* Negotiate the fc mode to use */
786e9a5f 366 ixgbe_fc_autoneg(hw);
620fa036
MC
367
368 /* Disable any previous flow control settings */
0ecc061d
PWJ
369 fctrl_reg = IXGBE_READ_REG(hw, IXGBE_FCTRL);
370 fctrl_reg &= ~(IXGBE_FCTRL_RFCE | IXGBE_FCTRL_RPFCE);
c44ade9e
JB
371
372 rmcs_reg = IXGBE_READ_REG(hw, IXGBE_RMCS);
373 rmcs_reg &= ~(IXGBE_RMCS_TFCE_PRIORITY | IXGBE_RMCS_TFCE_802_3X);
374
375 /*
0ecc061d 376 * The possible values of fc.current_mode are:
c44ade9e 377 * 0: Flow control is completely disabled
0ecc061d
PWJ
378 * 1: Rx flow control is enabled (we can receive pause frames,
379 * but not send pause frames).
620fa036 380 * 2: Tx flow control is enabled (we can send pause frames but
0ecc061d 381 * we do not support receiving pause frames).
c44ade9e 382 * 3: Both Rx and Tx flow control (symmetric) are enabled.
0b0c2b31 383 * other: Invalid.
c44ade9e 384 */
0ecc061d 385 switch (hw->fc.current_mode) {
c44ade9e 386 case ixgbe_fc_none:
620fa036
MC
387 /*
388 * Flow control is disabled by software override or autoneg.
389 * The code below will actually disable it in the HW.
390 */
c44ade9e
JB
391 break;
392 case ixgbe_fc_rx_pause:
393 /*
0ecc061d
PWJ
394 * Rx Flow control is enabled and Tx Flow control is
395 * disabled by software override. Since there really
396 * isn't a way to advertise that we are capable of RX
397 * Pause ONLY, we will advertise that we support both
398 * symmetric and asymmetric Rx PAUSE. Later, we will
399 * disable the adapter's ability to send PAUSE frames.
c44ade9e 400 */
0ecc061d 401 fctrl_reg |= IXGBE_FCTRL_RFCE;
c44ade9e
JB
402 break;
403 case ixgbe_fc_tx_pause:
404 /*
0ecc061d
PWJ
405 * Tx Flow control is enabled, and Rx Flow control is
406 * disabled by software override.
c44ade9e
JB
407 */
408 rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
409 break;
410 case ixgbe_fc_full:
0ecc061d
PWJ
411 /* Flow control (both Rx and Tx) is enabled by SW override. */
412 fctrl_reg |= IXGBE_FCTRL_RFCE;
c44ade9e
JB
413 rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
414 break;
415 default:
c44ade9e 416 hw_dbg(hw, "Flow control param set incorrectly\n");
e90dd264 417 return IXGBE_ERR_CONFIG;
c44ade9e
JB
418 }
419
620fa036 420 /* Set 802.3x based flow control settings. */
2132d381 421 fctrl_reg |= IXGBE_FCTRL_DPF;
0ecc061d 422 IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl_reg);
c44ade9e
JB
423 IXGBE_WRITE_REG(hw, IXGBE_RMCS, rmcs_reg);
424
041441d0
AD
425 /* Set up and enable Rx high/low water mark thresholds, enable XON. */
426 for (i = 0; i < MAX_TRAFFIC_CLASS; i++) {
427 if ((hw->fc.current_mode & ixgbe_fc_tx_pause) &&
428 hw->fc.high_water[i]) {
e5776620 429 fcrtl = (hw->fc.low_water[i] << 10) | IXGBE_FCRTL_XONE;
041441d0
AD
430 fcrth = (hw->fc.high_water[i] << 10) | IXGBE_FCRTH_FCEN;
431 IXGBE_WRITE_REG(hw, IXGBE_FCRTL(i), fcrtl);
432 IXGBE_WRITE_REG(hw, IXGBE_FCRTH(i), fcrth);
433 } else {
434 IXGBE_WRITE_REG(hw, IXGBE_FCRTL(i), 0);
435 IXGBE_WRITE_REG(hw, IXGBE_FCRTH(i), 0);
436 }
0ecc061d 437
c44ade9e
JB
438 }
439
0ecc061d 440 /* Configure pause time (2 TCs per register) */
041441d0
AD
441 reg = hw->fc.pause_time * 0x00010001;
442 for (i = 0; i < (MAX_TRAFFIC_CLASS / 2); i++)
443 IXGBE_WRITE_REG(hw, IXGBE_FCTTV(i), reg);
0ecc061d 444
041441d0
AD
445 /* Configure flow control refresh threshold value */
446 IXGBE_WRITE_REG(hw, IXGBE_FCRTV, hw->fc.pause_time / 2);
c44ade9e 447
e90dd264 448 return 0;
0ecc061d
PWJ
449}
450
9a799d71 451/**
8620a103 452 * ixgbe_start_mac_link_82598 - Configures MAC link settings
9a799d71
AK
453 * @hw: pointer to hardware structure
454 *
455 * Configures link settings based on values in the ixgbe_hw struct.
456 * Restarts the link. Performs autonegotiation if needed.
457 **/
8620a103 458static s32 ixgbe_start_mac_link_82598(struct ixgbe_hw *hw,
e7cf745b 459 bool autoneg_wait_to_complete)
9a799d71
AK
460{
461 u32 autoc_reg;
462 u32 links_reg;
463 u32 i;
464 s32 status = 0;
465
9a799d71 466 /* Restart link */
3201d313 467 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
9a799d71
AK
468 autoc_reg |= IXGBE_AUTOC_AN_RESTART;
469 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
470
471 /* Only poll for autoneg to complete if specified to do so */
8620a103 472 if (autoneg_wait_to_complete) {
3201d313
PWJ
473 if ((autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
474 IXGBE_AUTOC_LMS_KX4_AN ||
475 (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
476 IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
9a799d71
AK
477 links_reg = 0; /* Just in case Autoneg time = 0 */
478 for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
479 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
480 if (links_reg & IXGBE_LINKS_KX_AN_COMP)
481 break;
482 msleep(100);
483 }
484 if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
485 status = IXGBE_ERR_AUTONEG_NOT_COMPLETE;
c44ade9e 486 hw_dbg(hw, "Autonegotiation did not complete.\n");
9a799d71
AK
487 }
488 }
489 }
490
9a799d71
AK
491 /* Add delay to filter out noises during initial link setup */
492 msleep(50);
493
494 return status;
495}
496
734e979f
MC
497/**
498 * ixgbe_validate_link_ready - Function looks for phy link
499 * @hw: pointer to hardware structure
500 *
501 * Function indicates success when phy link is available. If phy is not ready
502 * within 5 seconds of MAC indicating link, the function returns error.
503 **/
504static s32 ixgbe_validate_link_ready(struct ixgbe_hw *hw)
505{
506 u32 timeout;
507 u16 an_reg;
508
509 if (hw->device_id != IXGBE_DEV_ID_82598AT2)
510 return 0;
511
512 for (timeout = 0;
513 timeout < IXGBE_VALIDATE_LINK_READY_TIMEOUT; timeout++) {
514 hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN, &an_reg);
515
516 if ((an_reg & MDIO_AN_STAT1_COMPLETE) &&
517 (an_reg & MDIO_STAT1_LSTATUS))
518 break;
519
520 msleep(100);
521 }
522
523 if (timeout == IXGBE_VALIDATE_LINK_READY_TIMEOUT) {
524 hw_dbg(hw, "Link was indicated but link is down\n");
525 return IXGBE_ERR_LINK_SETUP;
526 }
527
528 return 0;
529}
530
9a799d71
AK
531/**
532 * ixgbe_check_mac_link_82598 - Get link/speed status
533 * @hw: pointer to hardware structure
534 * @speed: pointer to link speed
535 * @link_up: true is link is up, false otherwise
cf8280ee 536 * @link_up_wait_to_complete: bool used to wait for link up or not
9a799d71
AK
537 *
538 * Reads the links register to determine if link is up and the current speed
539 **/
b4617240 540static s32 ixgbe_check_mac_link_82598(struct ixgbe_hw *hw,
e7cf745b
JK
541 ixgbe_link_speed *speed, bool *link_up,
542 bool link_up_wait_to_complete)
9a799d71
AK
543{
544 u32 links_reg;
cf8280ee 545 u32 i;
c4900be0
DS
546 u16 link_reg, adapt_comp_reg;
547
548 /*
549 * SERDES PHY requires us to read link status from register 0xC79F.
550 * Bit 0 set indicates link is up/ready; clear indicates link down.
551 * 0xC00C is read to check that the XAUI lanes are active. Bit 0
552 * clear indicates active; set indicates inactive.
553 */
554 if (hw->phy.type == ixgbe_phy_nl) {
6b73e10d
BH
555 hw->phy.ops.read_reg(hw, 0xC79F, MDIO_MMD_PMAPMD, &link_reg);
556 hw->phy.ops.read_reg(hw, 0xC79F, MDIO_MMD_PMAPMD, &link_reg);
557 hw->phy.ops.read_reg(hw, 0xC00C, MDIO_MMD_PMAPMD,
e7cf745b 558 &adapt_comp_reg);
c4900be0
DS
559 if (link_up_wait_to_complete) {
560 for (i = 0; i < IXGBE_LINK_UP_TIME; i++) {
561 if ((link_reg & 1) &&
562 ((adapt_comp_reg & 1) == 0)) {
563 *link_up = true;
564 break;
565 } else {
566 *link_up = false;
567 }
568 msleep(100);
569 hw->phy.ops.read_reg(hw, 0xC79F,
e7cf745b
JK
570 MDIO_MMD_PMAPMD,
571 &link_reg);
c4900be0 572 hw->phy.ops.read_reg(hw, 0xC00C,
e7cf745b
JK
573 MDIO_MMD_PMAPMD,
574 &adapt_comp_reg);
c4900be0
DS
575 }
576 } else {
577 if ((link_reg & 1) && ((adapt_comp_reg & 1) == 0))
578 *link_up = true;
579 else
580 *link_up = false;
581 }
582
23677ce3 583 if (!*link_up)
e90dd264 584 return 0;
c4900be0 585 }
9a799d71
AK
586
587 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
cf8280ee
JB
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 }
9a799d71
AK
605
606 if (links_reg & IXGBE_LINKS_SPEED)
607 *speed = IXGBE_LINK_SPEED_10GB_FULL;
608 else
609 *speed = IXGBE_LINK_SPEED_1GB_FULL;
610
23677ce3 611 if ((hw->device_id == IXGBE_DEV_ID_82598AT2) && *link_up &&
734e979f
MC
612 (ixgbe_validate_link_ready(hw) != 0))
613 *link_up = false;
614
9a799d71
AK
615 return 0;
616}
617
618/**
8620a103 619 * ixgbe_setup_mac_link_82598 - Set MAC link speed
9a799d71
AK
620 * @hw: pointer to hardware structure
621 * @speed: new link speed
037c6d0a 622 * @autoneg_wait_to_complete: true when waiting for completion is needed
9a799d71
AK
623 *
624 * Set the link speed in the AUTOC register and restarts link.
625 **/
8620a103 626static s32 ixgbe_setup_mac_link_82598(struct ixgbe_hw *hw,
fd0326f2
JH
627 ixgbe_link_speed speed,
628 bool autoneg_wait_to_complete)
9a799d71 629{
fd0326f2 630 bool autoneg = false;
3201d313
PWJ
631 ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN;
632 u32 curr_autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
633 u32 autoc = curr_autoc;
634 u32 link_mode = autoc & IXGBE_AUTOC_LMS_MASK;
9a799d71 635
3201d313
PWJ
636 /* Check to see if speed passed in is supported. */
637 ixgbe_get_link_capabilities_82598(hw, &link_capabilities, &autoneg);
638 speed &= link_capabilities;
639
640 if (speed == IXGBE_LINK_SPEED_UNKNOWN)
e90dd264 641 return IXGBE_ERR_LINK_SETUP;
3201d313
PWJ
642
643 /* Set KX4/KX support according to speed requested */
644 else if (link_mode == IXGBE_AUTOC_LMS_KX4_AN ||
e7cf745b 645 link_mode == IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
3201d313
PWJ
646 autoc &= ~IXGBE_AUTOC_KX4_KX_SUPP_MASK;
647 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
648 autoc |= IXGBE_AUTOC_KX4_SUPP;
649 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
650 autoc |= IXGBE_AUTOC_KX_SUPP;
651 if (autoc != curr_autoc)
652 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc);
9a799d71
AK
653 }
654
e90dd264
MR
655 /* Setup and restart the link based on the new values in
656 * ixgbe_hw This will write the AUTOC register based on the new
657 * stored values
658 */
659 return ixgbe_start_mac_link_82598(hw, autoneg_wait_to_complete);
9a799d71
AK
660}
661
662
663/**
8620a103 664 * ixgbe_setup_copper_link_82598 - Set the PHY autoneg advertised field
9a799d71
AK
665 * @hw: pointer to hardware structure
666 * @speed: new link speed
9a799d71
AK
667 * @autoneg_wait_to_complete: true if waiting is needed to complete
668 *
669 * Sets the link speed in the AUTOC register in the MAC and restarts link.
670 **/
8620a103 671static s32 ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw,
e7cf745b
JK
672 ixgbe_link_speed speed,
673 bool autoneg_wait_to_complete)
9a799d71 674{
c44ade9e 675 s32 status;
9a799d71
AK
676
677 /* Setup the PHY according to input speed */
99b76642 678 status = hw->phy.ops.setup_link_speed(hw, speed,
e7cf745b 679 autoneg_wait_to_complete);
3957d63d 680 /* Set up MAC */
8620a103 681 ixgbe_start_mac_link_82598(hw, autoneg_wait_to_complete);
9a799d71
AK
682
683 return status;
684}
685
686/**
687 * ixgbe_reset_hw_82598 - Performs hardware reset
688 * @hw: pointer to hardware structure
689 *
c44ade9e 690 * Resets the hardware by resetting the transmit and receive units, masks and
9a799d71
AK
691 * clears all interrupts, performing a PHY reset, and performing a link (MAC)
692 * reset.
693 **/
694static s32 ixgbe_reset_hw_82598(struct ixgbe_hw *hw)
695{
e90dd264 696 s32 status;
8ca783ab 697 s32 phy_status = 0;
9a799d71
AK
698 u32 ctrl;
699 u32 gheccr;
700 u32 i;
701 u32 autoc;
702 u8 analog_val;
703
704 /* Call adapter stop to disable tx/rx and clear interrupts */
ff9d1a5a 705 status = hw->mac.ops.stop_adapter(hw);
e90dd264
MR
706 if (status)
707 return status;
9a799d71
AK
708
709 /*
c44ade9e
JB
710 * Power up the Atlas Tx lanes if they are currently powered down.
711 * Atlas Tx lanes are powered down for MAC loopback tests, but
9a799d71
AK
712 * they are not automatically restored on reset.
713 */
c44ade9e 714 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK, &analog_val);
9a799d71 715 if (analog_val & IXGBE_ATLAS_PDN_TX_REG_EN) {
c44ade9e
JB
716 /* Enable Tx Atlas so packets can be transmitted again */
717 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
e7cf745b 718 &analog_val);
9a799d71 719 analog_val &= ~IXGBE_ATLAS_PDN_TX_REG_EN;
c44ade9e 720 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
e7cf745b 721 analog_val);
9a799d71 722
c44ade9e 723 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
e7cf745b 724 &analog_val);
9a799d71 725 analog_val &= ~IXGBE_ATLAS_PDN_TX_10G_QL_ALL;
c44ade9e 726 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
e7cf745b 727 analog_val);
9a799d71 728
c44ade9e 729 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
e7cf745b 730 &analog_val);
9a799d71 731 analog_val &= ~IXGBE_ATLAS_PDN_TX_1G_QL_ALL;
c44ade9e 732 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
e7cf745b 733 analog_val);
9a799d71 734
c44ade9e 735 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
e7cf745b 736 &analog_val);
9a799d71 737 analog_val &= ~IXGBE_ATLAS_PDN_TX_AN_QL_ALL;
c44ade9e 738 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
e7cf745b 739 analog_val);
9a799d71
AK
740 }
741
742 /* Reset PHY */
04f165ef
PW
743 if (hw->phy.reset_disable == false) {
744 /* PHY ops must be identified and initialized prior to reset */
745
746 /* Init PHY and function pointers, perform SFP setup */
8ca783ab
DS
747 phy_status = hw->phy.ops.init(hw);
748 if (phy_status == IXGBE_ERR_SFP_NOT_SUPPORTED)
e90dd264 749 return phy_status;
ff9d1a5a
ET
750 if (phy_status == IXGBE_ERR_SFP_NOT_PRESENT)
751 goto mac_reset_top;
8ca783ab 752
c44ade9e 753 hw->phy.ops.reset(hw);
04f165ef 754 }
9a799d71 755
a4297dc2 756mac_reset_top:
9a799d71
AK
757 /*
758 * Issue global reset to the MAC. This needs to be a SW reset.
759 * If link reset is used, it might reset the MAC when mng is using it
760 */
8132b54e
AD
761 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL) | IXGBE_CTRL_RST;
762 IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
9a799d71
AK
763 IXGBE_WRITE_FLUSH(hw);
764
765 /* Poll for reset bit to self-clear indicating reset is complete */
766 for (i = 0; i < 10; i++) {
767 udelay(1);
768 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
769 if (!(ctrl & IXGBE_CTRL_RST))
770 break;
771 }
772 if (ctrl & IXGBE_CTRL_RST) {
773 status = IXGBE_ERR_RESET_FAILED;
774 hw_dbg(hw, "Reset polling failed to complete.\n");
775 }
776
8132b54e
AD
777 msleep(50);
778
a4297dc2
ET
779 /*
780 * Double resets are required for recovery from certain error
781 * conditions. Between resets, it is necessary to stall to allow time
8132b54e 782 * for any pending HW events to complete.
a4297dc2
ET
783 */
784 if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
785 hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
a4297dc2
ET
786 goto mac_reset_top;
787 }
788
9a799d71
AK
789 gheccr = IXGBE_READ_REG(hw, IXGBE_GHECCR);
790 gheccr &= ~((1 << 21) | (1 << 18) | (1 << 9) | (1 << 6));
791 IXGBE_WRITE_REG(hw, IXGBE_GHECCR, gheccr);
792
793 /*
3201d313
PWJ
794 * Store the original AUTOC value if it has not been
795 * stored off yet. Otherwise restore the stored original
796 * AUTOC value since the reset operation sets back to deaults.
9a799d71
AK
797 */
798 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
3201d313
PWJ
799 if (hw->mac.orig_link_settings_stored == false) {
800 hw->mac.orig_autoc = autoc;
801 hw->mac.orig_link_settings_stored = true;
802 } else if (autoc != hw->mac.orig_autoc) {
803 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, hw->mac.orig_autoc);
9a799d71
AK
804 }
805
278675d8
ET
806 /* Store the permanent mac address */
807 hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
808
aca6bee7
WJP
809 /*
810 * Store MAC address from RAR0, clear receive address registers, and
811 * clear the multicast table
812 */
813 hw->mac.ops.init_rx_addrs(hw);
814
8ca783ab
DS
815 if (phy_status)
816 status = phy_status;
817
9a799d71
AK
818 return status;
819}
820
c44ade9e
JB
821/**
822 * ixgbe_set_vmdq_82598 - Associate a VMDq set index with a rx address
823 * @hw: pointer to hardware struct
824 * @rar: receive address register index to associate with a VMDq index
825 * @vmdq: VMDq set index
826 **/
e855aac8 827static s32 ixgbe_set_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
c44ade9e
JB
828{
829 u32 rar_high;
c700f4e6
ET
830 u32 rar_entries = hw->mac.num_rar_entries;
831
832 /* Make sure we are using a valid rar index range */
833 if (rar >= rar_entries) {
834 hw_dbg(hw, "RAR index %d is out of range.\n", rar);
835 return IXGBE_ERR_INVALID_ARGUMENT;
836 }
c44ade9e
JB
837
838 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
839 rar_high &= ~IXGBE_RAH_VIND_MASK;
840 rar_high |= ((vmdq << IXGBE_RAH_VIND_SHIFT) & IXGBE_RAH_VIND_MASK);
841 IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
842 return 0;
843}
844
845/**
846 * ixgbe_clear_vmdq_82598 - Disassociate a VMDq set index from an rx address
847 * @hw: pointer to hardware struct
848 * @rar: receive address register index to associate with a VMDq index
849 * @vmdq: VMDq clear index (not used in 82598, but elsewhere)
850 **/
851static s32 ixgbe_clear_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
852{
853 u32 rar_high;
854 u32 rar_entries = hw->mac.num_rar_entries;
855
c700f4e6
ET
856
857 /* Make sure we are using a valid rar index range */
858 if (rar >= rar_entries) {
c44ade9e 859 hw_dbg(hw, "RAR index %d is out of range.\n", rar);
c700f4e6
ET
860 return IXGBE_ERR_INVALID_ARGUMENT;
861 }
862
863 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
864 if (rar_high & IXGBE_RAH_VIND_MASK) {
865 rar_high &= ~IXGBE_RAH_VIND_MASK;
866 IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
c44ade9e
JB
867 }
868
869 return 0;
870}
871
872/**
873 * ixgbe_set_vfta_82598 - Set VLAN filter table
874 * @hw: pointer to hardware structure
875 * @vlan: VLAN id to write to VLAN filter
876 * @vind: VMDq output index that maps queue to VLAN id in VFTA
877 * @vlan_on: boolean flag to turn on/off VLAN in VFTA
878 *
879 * Turn on/off specified VLAN in the VLAN filter table.
880 **/
e855aac8
HE
881static s32 ixgbe_set_vfta_82598(struct ixgbe_hw *hw, u32 vlan, u32 vind,
882 bool vlan_on)
c44ade9e
JB
883{
884 u32 regindex;
885 u32 bitindex;
886 u32 bits;
887 u32 vftabyte;
888
889 if (vlan > 4095)
890 return IXGBE_ERR_PARAM;
891
892 /* Determine 32-bit word position in array */
893 regindex = (vlan >> 5) & 0x7F; /* upper seven bits */
894
895 /* Determine the location of the (VMD) queue index */
896 vftabyte = ((vlan >> 3) & 0x03); /* bits (4:3) indicating byte array */
897 bitindex = (vlan & 0x7) << 2; /* lower 3 bits indicate nibble */
898
899 /* Set the nibble for VMD queue index */
900 bits = IXGBE_READ_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex));
901 bits &= (~(0x0F << bitindex));
902 bits |= (vind << bitindex);
903 IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex), bits);
904
905 /* Determine the location of the bit for this VLAN id */
906 bitindex = vlan & 0x1F; /* lower five bits */
907
908 bits = IXGBE_READ_REG(hw, IXGBE_VFTA(regindex));
909 if (vlan_on)
910 /* Turn on this VLAN id */
911 bits |= (1 << bitindex);
912 else
913 /* Turn off this VLAN id */
914 bits &= ~(1 << bitindex);
915 IXGBE_WRITE_REG(hw, IXGBE_VFTA(regindex), bits);
916
917 return 0;
918}
919
920/**
921 * ixgbe_clear_vfta_82598 - Clear VLAN filter table
922 * @hw: pointer to hardware structure
923 *
924 * Clears the VLAN filer table, and the VMDq index associated with the filter
925 **/
926static s32 ixgbe_clear_vfta_82598(struct ixgbe_hw *hw)
927{
928 u32 offset;
929 u32 vlanbyte;
930
931 for (offset = 0; offset < hw->mac.vft_size; offset++)
932 IXGBE_WRITE_REG(hw, IXGBE_VFTA(offset), 0);
933
934 for (vlanbyte = 0; vlanbyte < 4; vlanbyte++)
935 for (offset = 0; offset < hw->mac.vft_size; offset++)
936 IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vlanbyte, offset),
e7cf745b 937 0);
c44ade9e
JB
938
939 return 0;
940}
941
c44ade9e
JB
942/**
943 * ixgbe_read_analog_reg8_82598 - Reads 8 bit Atlas analog register
944 * @hw: pointer to hardware structure
945 * @reg: analog register to read
946 * @val: read value
947 *
948 * Performs read operation to Atlas analog register specified.
949 **/
e855aac8 950static s32 ixgbe_read_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 *val)
c44ade9e
JB
951{
952 u32 atlas_ctl;
953
954 IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL,
e7cf745b 955 IXGBE_ATLASCTL_WRITE_CMD | (reg << 8));
c44ade9e
JB
956 IXGBE_WRITE_FLUSH(hw);
957 udelay(10);
958 atlas_ctl = IXGBE_READ_REG(hw, IXGBE_ATLASCTL);
959 *val = (u8)atlas_ctl;
960
961 return 0;
962}
963
964/**
965 * ixgbe_write_analog_reg8_82598 - Writes 8 bit Atlas analog register
966 * @hw: pointer to hardware structure
967 * @reg: atlas register to write
968 * @val: value to write
969 *
970 * Performs write operation to Atlas analog register specified.
971 **/
e855aac8 972static s32 ixgbe_write_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 val)
c44ade9e
JB
973{
974 u32 atlas_ctl;
975
976 atlas_ctl = (reg << 8) | val;
977 IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL, atlas_ctl);
978 IXGBE_WRITE_FLUSH(hw);
979 udelay(10);
980
981 return 0;
982}
983
c4900be0 984/**
07ce870b 985 * ixgbe_read_i2c_phy_82598 - Reads 8 bit word over I2C interface.
c4900be0 986 * @hw: pointer to hardware structure
07ce870b
ET
987 * @dev_addr: address to read from
988 * @byte_offset: byte offset to read from dev_addr
c4900be0
DS
989 * @eeprom_data: value read
990 *
07ce870b 991 * Performs 8 byte read operation to SFP module's data over I2C interface.
c4900be0 992 **/
07ce870b
ET
993static s32 ixgbe_read_i2c_phy_82598(struct ixgbe_hw *hw, u8 dev_addr,
994 u8 byte_offset, u8 *eeprom_data)
c4900be0
DS
995{
996 s32 status = 0;
997 u16 sfp_addr = 0;
998 u16 sfp_data = 0;
999 u16 sfp_stat = 0;
3dcc2f41 1000 u16 gssr;
c4900be0
DS
1001 u32 i;
1002
3dcc2f41
ET
1003 if (IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_LAN_ID_1)
1004 gssr = IXGBE_GSSR_PHY1_SM;
1005 else
1006 gssr = IXGBE_GSSR_PHY0_SM;
1007
1008 if (hw->mac.ops.acquire_swfw_sync(hw, gssr) != 0)
1009 return IXGBE_ERR_SWFW_SYNC;
1010
c4900be0
DS
1011 if (hw->phy.type == ixgbe_phy_nl) {
1012 /*
1013 * phy SDA/SCL registers are at addresses 0xC30A to
1014 * 0xC30D. These registers are used to talk to the SFP+
1015 * module's EEPROM through the SDA/SCL (I2C) interface.
1016 */
07ce870b 1017 sfp_addr = (dev_addr << 8) + byte_offset;
c4900be0 1018 sfp_addr = (sfp_addr | IXGBE_I2C_EEPROM_READ_MASK);
3dcc2f41
ET
1019 hw->phy.ops.write_reg_mdi(hw,
1020 IXGBE_MDIO_PMA_PMD_SDA_SCL_ADDR,
1021 MDIO_MMD_PMAPMD,
1022 sfp_addr);
c4900be0
DS
1023
1024 /* Poll status */
1025 for (i = 0; i < 100; i++) {
3dcc2f41
ET
1026 hw->phy.ops.read_reg_mdi(hw,
1027 IXGBE_MDIO_PMA_PMD_SDA_SCL_STAT,
1028 MDIO_MMD_PMAPMD,
1029 &sfp_stat);
c4900be0
DS
1030 sfp_stat = sfp_stat & IXGBE_I2C_EEPROM_STATUS_MASK;
1031 if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_IN_PROGRESS)
1032 break;
032b4325 1033 usleep_range(10000, 20000);
c4900be0
DS
1034 }
1035
1036 if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_PASS) {
1037 hw_dbg(hw, "EEPROM read did not pass.\n");
1038 status = IXGBE_ERR_SFP_NOT_PRESENT;
1039 goto out;
1040 }
1041
1042 /* Read data */
3dcc2f41
ET
1043 hw->phy.ops.read_reg_mdi(hw, IXGBE_MDIO_PMA_PMD_SDA_SCL_DATA,
1044 MDIO_MMD_PMAPMD, &sfp_data);
c4900be0
DS
1045
1046 *eeprom_data = (u8)(sfp_data >> 8);
1047 } else {
1048 status = IXGBE_ERR_PHY;
c4900be0
DS
1049 }
1050
1051out:
3dcc2f41 1052 hw->mac.ops.release_swfw_sync(hw, gssr);
c4900be0
DS
1053 return status;
1054}
1055
07ce870b
ET
1056/**
1057 * ixgbe_read_i2c_eeprom_82598 - Reads 8 bit word over I2C interface.
1058 * @hw: pointer to hardware structure
1059 * @byte_offset: EEPROM byte offset to read
1060 * @eeprom_data: value read
1061 *
1062 * Performs 8 byte read operation to SFP module's EEPROM over I2C interface.
1063 **/
1064static s32 ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
1065 u8 *eeprom_data)
1066{
1067 return ixgbe_read_i2c_phy_82598(hw, IXGBE_I2C_EEPROM_DEV_ADDR,
1068 byte_offset, eeprom_data);
1069}
1070
1071/**
1072 * ixgbe_read_i2c_sff8472_82598 - Reads 8 bit word over I2C interface.
1073 * @hw: pointer to hardware structure
1074 * @byte_offset: byte offset at address 0xA2
1075 * @eeprom_data: value read
1076 *
1077 * Performs 8 byte read operation to SFP module's SFF-8472 data over I2C
1078 **/
1079static s32 ixgbe_read_i2c_sff8472_82598(struct ixgbe_hw *hw, u8 byte_offset,
1080 u8 *sff8472_data)
1081{
1082 return ixgbe_read_i2c_phy_82598(hw, IXGBE_I2C_EEPROM_DEV_ADDR2,
1083 byte_offset, sff8472_data);
1084}
1085
c9130180
ET
1086/**
1087 * ixgbe_set_lan_id_multi_port_pcie_82598 - Set LAN id for PCIe multiple
1088 * port devices.
1089 * @hw: pointer to the HW structure
1090 *
1091 * Calls common function and corrects issue with some single port devices
1092 * that enable LAN1 but not LAN0.
1093 **/
1094static void ixgbe_set_lan_id_multi_port_pcie_82598(struct ixgbe_hw *hw)
1095{
1096 struct ixgbe_bus_info *bus = &hw->bus;
1097 u16 pci_gen = 0;
1098 u16 pci_ctrl2 = 0;
1099
1100 ixgbe_set_lan_id_multi_port_pcie(hw);
1101
1102 /* check if LAN0 is disabled */
1103 hw->eeprom.ops.read(hw, IXGBE_PCIE_GENERAL_PTR, &pci_gen);
1104 if ((pci_gen != 0) && (pci_gen != 0xFFFF)) {
1105
1106 hw->eeprom.ops.read(hw, pci_gen + IXGBE_PCIE_CTRL2, &pci_ctrl2);
1107
1108 /* if LAN0 is completely disabled force function to 0 */
1109 if ((pci_ctrl2 & IXGBE_PCIE_CTRL2_LAN_DISABLE) &&
1110 !(pci_ctrl2 & IXGBE_PCIE_CTRL2_DISABLE_SELECT) &&
1111 !(pci_ctrl2 & IXGBE_PCIE_CTRL2_DUMMY_ENABLE)) {
1112
1113 bus->func = 0;
1114 }
1115 }
1116}
1117
80605c65 1118/**
44834700 1119 * ixgbe_set_rxpba_82598 - Initialize RX packet buffer
80605c65 1120 * @hw: pointer to hardware structure
44834700
JK
1121 * @num_pb: number of packet buffers to allocate
1122 * @headroom: reserve n KB of headroom
1123 * @strategy: packet buffer allocation strategy
1124 **/
1125static void ixgbe_set_rxpba_82598(struct ixgbe_hw *hw, int num_pb,
1126 u32 headroom, int strategy)
80605c65
JF
1127{
1128 u32 rxpktsize = IXGBE_RXPBSIZE_64KB;
1129 u8 i = 0;
1130
1131 if (!num_pb)
1132 return;
1133
1134 /* Setup Rx packet buffer sizes */
1135 switch (strategy) {
1136 case PBA_STRATEGY_WEIGHTED:
1137 /* Setup the first four at 80KB */
1138 rxpktsize = IXGBE_RXPBSIZE_80KB;
1139 for (; i < 4; i++)
1140 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
1141 /* Setup the last four at 48KB...don't re-init i */
1142 rxpktsize = IXGBE_RXPBSIZE_48KB;
1143 /* Fall Through */
1144 case PBA_STRATEGY_EQUAL:
1145 default:
1146 /* Divide the remaining Rx packet buffer evenly among the TCs */
1147 for (; i < IXGBE_MAX_PACKET_BUFFERS; i++)
1148 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
1149 break;
1150 }
1151
1152 /* Setup Tx packet buffer sizes */
1153 for (i = 0; i < IXGBE_MAX_PACKET_BUFFERS; i++)
1154 IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i), IXGBE_TXPBSIZE_40KB);
80605c65
JF
1155}
1156
9a799d71 1157static struct ixgbe_mac_operations mac_ops_82598 = {
c44ade9e
JB
1158 .init_hw = &ixgbe_init_hw_generic,
1159 .reset_hw = &ixgbe_reset_hw_82598,
202ff1ec 1160 .start_hw = &ixgbe_start_hw_82598,
c44ade9e 1161 .clear_hw_cntrs = &ixgbe_clear_hw_cntrs_generic,
9a799d71 1162 .get_media_type = &ixgbe_get_media_type_82598,
11afc1b1 1163 .enable_rx_dma = &ixgbe_enable_rx_dma_generic,
c44ade9e
JB
1164 .get_mac_addr = &ixgbe_get_mac_addr_generic,
1165 .stop_adapter = &ixgbe_stop_adapter_generic,
11afc1b1 1166 .get_bus_info = &ixgbe_get_bus_info_generic,
c9130180 1167 .set_lan_id = &ixgbe_set_lan_id_multi_port_pcie_82598,
c44ade9e
JB
1168 .read_analog_reg8 = &ixgbe_read_analog_reg8_82598,
1169 .write_analog_reg8 = &ixgbe_write_analog_reg8_82598,
3957d63d 1170 .setup_link = &ixgbe_setup_mac_link_82598,
80605c65 1171 .set_rxpba = &ixgbe_set_rxpba_82598,
c44ade9e
JB
1172 .check_link = &ixgbe_check_mac_link_82598,
1173 .get_link_capabilities = &ixgbe_get_link_capabilities_82598,
1174 .led_on = &ixgbe_led_on_generic,
1175 .led_off = &ixgbe_led_off_generic,
87c12017
PW
1176 .blink_led_start = &ixgbe_blink_led_start_generic,
1177 .blink_led_stop = &ixgbe_blink_led_stop_generic,
c44ade9e
JB
1178 .set_rar = &ixgbe_set_rar_generic,
1179 .clear_rar = &ixgbe_clear_rar_generic,
1180 .set_vmdq = &ixgbe_set_vmdq_82598,
1181 .clear_vmdq = &ixgbe_clear_vmdq_82598,
1182 .init_rx_addrs = &ixgbe_init_rx_addrs_generic,
c44ade9e
JB
1183 .update_mc_addr_list = &ixgbe_update_mc_addr_list_generic,
1184 .enable_mc = &ixgbe_enable_mc_generic,
1185 .disable_mc = &ixgbe_disable_mc_generic,
1186 .clear_vfta = &ixgbe_clear_vfta_82598,
1187 .set_vfta = &ixgbe_set_vfta_82598,
620fa036 1188 .fc_enable = &ixgbe_fc_enable_82598,
9612de92 1189 .set_fw_drv_ver = NULL,
5e655105
DS
1190 .acquire_swfw_sync = &ixgbe_acquire_swfw_sync,
1191 .release_swfw_sync = &ixgbe_release_swfw_sync,
3ca8bc6d
DS
1192 .get_thermal_sensor_data = NULL,
1193 .init_thermal_sensor_thresh = NULL,
429d6a3b
DS
1194 .prot_autoc_read = &prot_autoc_read_generic,
1195 .prot_autoc_write = &prot_autoc_write_generic,
c44ade9e
JB
1196};
1197
1198static struct ixgbe_eeprom_operations eeprom_ops_82598 = {
1199 .init_params = &ixgbe_init_eeprom_params_generic,
21ce849b 1200 .read = &ixgbe_read_eerd_generic,
2fa5eef4
ET
1201 .write = &ixgbe_write_eeprom_generic,
1202 .write_buffer = &ixgbe_write_eeprom_buffer_bit_bang_generic,
68c7005d 1203 .read_buffer = &ixgbe_read_eerd_buffer_generic,
a391f1d5 1204 .calc_checksum = &ixgbe_calc_eeprom_checksum_generic,
c44ade9e
JB
1205 .validate_checksum = &ixgbe_validate_eeprom_checksum_generic,
1206 .update_checksum = &ixgbe_update_eeprom_checksum_generic,
1207};
1208
1209static struct ixgbe_phy_operations phy_ops_82598 = {
1210 .identify = &ixgbe_identify_phy_generic,
8f58332b 1211 .identify_sfp = &ixgbe_identify_module_generic,
04f165ef 1212 .init = &ixgbe_init_phy_ops_82598,
c44ade9e
JB
1213 .reset = &ixgbe_reset_phy_generic,
1214 .read_reg = &ixgbe_read_phy_reg_generic,
1215 .write_reg = &ixgbe_write_phy_reg_generic,
3dcc2f41
ET
1216 .read_reg_mdi = &ixgbe_read_phy_reg_mdi,
1217 .write_reg_mdi = &ixgbe_write_phy_reg_mdi,
c44ade9e
JB
1218 .setup_link = &ixgbe_setup_phy_link_generic,
1219 .setup_link_speed = &ixgbe_setup_phy_link_speed_generic,
07ce870b 1220 .read_i2c_sff8472 = &ixgbe_read_i2c_sff8472_82598,
c4900be0 1221 .read_i2c_eeprom = &ixgbe_read_i2c_eeprom_82598,
119fc60a 1222 .check_overtemp = &ixgbe_tn_check_overtemp,
9a799d71
AK
1223};
1224
3957d63d 1225struct ixgbe_info ixgbe_82598_info = {
9a799d71
AK
1226 .mac = ixgbe_mac_82598EB,
1227 .get_invariants = &ixgbe_get_invariants_82598,
1228 .mac_ops = &mac_ops_82598,
c44ade9e
JB
1229 .eeprom_ops = &eeprom_ops_82598,
1230 .phy_ops = &phy_ops_82598,
9a799d71 1231};