1 /*******************************************************************************
2 
3   Intel 10 Gigabit PCI Express Linux driver
4   Copyright(c) 1999 - 2016 Intel Corporation.
5 
6   This program is free software; you can redistribute it and/or modify it
7   under the terms and conditions of the GNU General Public License,
8   version 2, as published by the Free Software Foundation.
9 
10   This program is distributed in the hope it will be useful, but WITHOUT
11   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
13   more details.
14 
15   You should have received a copy of the GNU General Public License along with
16   this program; if not, write to the Free Software Foundation, Inc.,
17   51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
18 
19   The full GNU General Public License is included in this distribution in
20   the file called "COPYING".
21 
22   Contact Information:
23   Linux NICS <linux.nics@intel.com>
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 
33 #include "ixgbe.h"
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
39 #define IXGBE_82598_MC_TBL_SIZE  128
40 #define IXGBE_82598_VFT_TBL_SIZE 128
41 #define IXGBE_82598_RX_PB_SIZE	 512
42 
43 static s32 ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw,
44 					 ixgbe_link_speed speed,
45 					 bool autoneg_wait_to_complete);
46 static s32 ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
47 				       u8 *eeprom_data);
48 
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  **/
59 static void ixgbe_set_pcie_completion_timeout(struct ixgbe_hw *hw)
60 {
61 	u32 gcr = IXGBE_READ_REG(hw, IXGBE_GCR);
62 	u16 pcie_devctl2;
63 
64 	if (ixgbe_removed(hw->hw_addr))
65 		return;
66 
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 	 */
85 	pcie_devctl2 = ixgbe_read_pci_cfg_word(hw, IXGBE_PCI_DEVICE_CONTROL2);
86 	pcie_devctl2 |= IXGBE_PCI_DEVICE_CONTROL2_16ms;
87 	ixgbe_write_pci_cfg_word(hw, IXGBE_PCI_DEVICE_CONTROL2, pcie_devctl2);
88 out:
89 	/* disable completion timeout resend */
90 	gcr &= ~IXGBE_GCR_CMPL_TMOUT_RESEND;
91 	IXGBE_WRITE_REG(hw, IXGBE_GCR, gcr);
92 }
93 
94 static s32 ixgbe_get_invariants_82598(struct ixgbe_hw *hw)
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;
104 	mac->rx_pb_size = IXGBE_82598_RX_PB_SIZE;
105 	mac->max_rx_queues = IXGBE_82598_MAX_RX_QUEUES;
106 	mac->max_tx_queues = IXGBE_82598_MAX_TX_QUEUES;
107 	mac->max_msix_vectors = ixgbe_get_pcie_msix_count_generic(hw);
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  **/
121 static s32 ixgbe_init_phy_ops_82598(struct ixgbe_hw *hw)
122 {
123 	struct ixgbe_mac_info *mac = &hw->mac;
124 	struct ixgbe_phy_info *phy = &hw->phy;
125 	s32 ret_val;
126 	u16 list_offset, data_offset;
127 
128 	/* Identify the PHY */
129 	phy->ops.identify(hw);
130 
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;
134 		mac->ops.get_link_capabilities =
135 			&ixgbe_get_copper_link_capabilities_generic;
136 	}
137 
138 	switch (hw->phy.type) {
139 	case ixgbe_phy_tn:
140 		phy->ops.setup_link = &ixgbe_setup_phy_link_tnx;
141 		phy->ops.check_link = &ixgbe_check_phy_link_tnx;
142 		phy->ops.get_firmware_version =
143 			     &ixgbe_get_phy_firmware_version_tnx;
144 		break;
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);
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;
154 
155 		/* Check to see if SFP+ module is supported */
156 		ret_val = ixgbe_get_sfp_init_sequence_offsets(hw,
157 							    &list_offset,
158 							    &data_offset);
159 		if (ret_val)
160 			return IXGBE_ERR_SFP_NOT_SUPPORTED;
161 		break;
162 	default:
163 		break;
164 	}
165 
166 	return 0;
167 }
168 
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.
174  *  Disables relaxed ordering for archs other than SPARC
175  *  Then set pcie completion timeout
176  *
177  **/
178 static s32 ixgbe_start_hw_82598(struct ixgbe_hw *hw)
179 {
180 #ifndef CONFIG_SPARC
181 	u32 regval;
182 	u32 i;
183 #endif
184 	s32 ret_val;
185 
186 	ret_val = ixgbe_start_hw_generic(hw);
187 
188 #ifndef CONFIG_SPARC
189 	/* Disable relaxed ordering */
190 	for (i = 0; ((i < hw->mac.max_tx_queues) &&
191 	     (i < IXGBE_DCA_MAX_QUEUES_82598)); i++) {
192 		regval = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL(i));
193 		regval &= ~IXGBE_DCA_TXCTRL_DESC_WRO_EN;
194 		IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL(i), regval);
195 	}
196 
197 	for (i = 0; ((i < hw->mac.max_rx_queues) &&
198 	     (i < IXGBE_DCA_MAX_QUEUES_82598)); i++) {
199 		regval = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i));
200 		regval &= ~(IXGBE_DCA_RXCTRL_DATA_WRO_EN |
201 			    IXGBE_DCA_RXCTRL_HEAD_WRO_EN);
202 		IXGBE_WRITE_REG(hw, IXGBE_DCA_RXCTRL(i), regval);
203 	}
204 #endif
205 	if (ret_val)
206 		return ret_val;
207 
208 	/* set the completion timeout for interface */
209 	ixgbe_set_pcie_completion_timeout(hw);
210 
211 	return 0;
212 }
213 
214 /**
215  *  ixgbe_get_link_capabilities_82598 - Determines link capabilities
216  *  @hw: pointer to hardware structure
217  *  @speed: pointer to link speed
218  *  @autoneg: boolean auto-negotiation value
219  *
220  *  Determines the link capabilities by reading the AUTOC register.
221  **/
222 static s32 ixgbe_get_link_capabilities_82598(struct ixgbe_hw *hw,
223 					     ixgbe_link_speed *speed,
224 					     bool *autoneg)
225 {
226 	u32 autoc = 0;
227 
228 	/*
229 	 * Determine link capabilities based on the stored value of AUTOC,
230 	 * which represents EEPROM defaults.  If AUTOC value has not been
231 	 * stored, use the current register value.
232 	 */
233 	if (hw->mac.orig_link_settings_stored)
234 		autoc = hw->mac.orig_autoc;
235 	else
236 		autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
237 
238 	switch (autoc & IXGBE_AUTOC_LMS_MASK) {
239 	case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
240 		*speed = IXGBE_LINK_SPEED_1GB_FULL;
241 		*autoneg = false;
242 		break;
243 
244 	case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
245 		*speed = IXGBE_LINK_SPEED_10GB_FULL;
246 		*autoneg = false;
247 		break;
248 
249 	case IXGBE_AUTOC_LMS_1G_AN:
250 		*speed = IXGBE_LINK_SPEED_1GB_FULL;
251 		*autoneg = true;
252 		break;
253 
254 	case IXGBE_AUTOC_LMS_KX4_AN:
255 	case IXGBE_AUTOC_LMS_KX4_AN_1G_AN:
256 		*speed = IXGBE_LINK_SPEED_UNKNOWN;
257 		if (autoc & IXGBE_AUTOC_KX4_SUPP)
258 			*speed |= IXGBE_LINK_SPEED_10GB_FULL;
259 		if (autoc & IXGBE_AUTOC_KX_SUPP)
260 			*speed |= IXGBE_LINK_SPEED_1GB_FULL;
261 		*autoneg = true;
262 		break;
263 
264 	default:
265 		return IXGBE_ERR_LINK_SETUP;
266 	}
267 
268 	return 0;
269 }
270 
271 /**
272  *  ixgbe_get_media_type_82598 - Determines media type
273  *  @hw: pointer to hardware structure
274  *
275  *  Returns the media type (fiber, copper, backplane)
276  **/
277 static enum ixgbe_media_type ixgbe_get_media_type_82598(struct ixgbe_hw *hw)
278 {
279 	/* Detect if there is a copper PHY attached. */
280 	switch (hw->phy.type) {
281 	case ixgbe_phy_cu_unknown:
282 	case ixgbe_phy_tn:
283 		return ixgbe_media_type_copper;
284 
285 	default:
286 		break;
287 	}
288 
289 	/* Media type for I82598 is based on device ID */
290 	switch (hw->device_id) {
291 	case IXGBE_DEV_ID_82598:
292 	case IXGBE_DEV_ID_82598_BX:
293 		/* Default device ID is mezzanine card KX/KX4 */
294 		return ixgbe_media_type_backplane;
295 
296 	case IXGBE_DEV_ID_82598AF_DUAL_PORT:
297 	case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
298 	case IXGBE_DEV_ID_82598_DA_DUAL_PORT:
299 	case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM:
300 	case IXGBE_DEV_ID_82598EB_XF_LR:
301 	case IXGBE_DEV_ID_82598EB_SFP_LOM:
302 		return ixgbe_media_type_fiber;
303 
304 	case IXGBE_DEV_ID_82598EB_CX4:
305 	case IXGBE_DEV_ID_82598_CX4_DUAL_PORT:
306 		return ixgbe_media_type_cx4;
307 
308 	case IXGBE_DEV_ID_82598AT:
309 	case IXGBE_DEV_ID_82598AT2:
310 		return ixgbe_media_type_copper;
311 
312 	default:
313 		return ixgbe_media_type_unknown;
314 	}
315 }
316 
317 /**
318  *  ixgbe_fc_enable_82598 - Enable flow control
319  *  @hw: pointer to hardware structure
320  *
321  *  Enable flow control according to the current settings.
322  **/
323 static s32 ixgbe_fc_enable_82598(struct ixgbe_hw *hw)
324 {
325 	u32 fctrl_reg;
326 	u32 rmcs_reg;
327 	u32 reg;
328 	u32 fcrtl, fcrth;
329 	u32 link_speed = 0;
330 	int i;
331 	bool link_up;
332 
333 	/* Validate the water mark configuration */
334 	if (!hw->fc.pause_time)
335 		return IXGBE_ERR_INVALID_LINK_SETTINGS;
336 
337 	/* Low water mark of zero causes XOFF floods */
338 	for (i = 0; i < MAX_TRAFFIC_CLASS; i++) {
339 		if ((hw->fc.current_mode & ixgbe_fc_tx_pause) &&
340 		    hw->fc.high_water[i]) {
341 			if (!hw->fc.low_water[i] ||
342 			    hw->fc.low_water[i] >= hw->fc.high_water[i]) {
343 				hw_dbg(hw, "Invalid water mark configuration\n");
344 				return IXGBE_ERR_INVALID_LINK_SETTINGS;
345 			}
346 		}
347 	}
348 
349 	/*
350 	 * On 82598 having Rx FC on causes resets while doing 1G
351 	 * so if it's on turn it off once we know link_speed. For
352 	 * more details see 82598 Specification update.
353 	 */
354 	hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
355 	if (link_up && link_speed == IXGBE_LINK_SPEED_1GB_FULL) {
356 		switch (hw->fc.requested_mode) {
357 		case ixgbe_fc_full:
358 			hw->fc.requested_mode = ixgbe_fc_tx_pause;
359 			break;
360 		case ixgbe_fc_rx_pause:
361 			hw->fc.requested_mode = ixgbe_fc_none;
362 			break;
363 		default:
364 			/* no change */
365 			break;
366 		}
367 	}
368 
369 	/* Negotiate the fc mode to use */
370 	ixgbe_fc_autoneg(hw);
371 
372 	/* Disable any previous flow control settings */
373 	fctrl_reg = IXGBE_READ_REG(hw, IXGBE_FCTRL);
374 	fctrl_reg &= ~(IXGBE_FCTRL_RFCE | IXGBE_FCTRL_RPFCE);
375 
376 	rmcs_reg = IXGBE_READ_REG(hw, IXGBE_RMCS);
377 	rmcs_reg &= ~(IXGBE_RMCS_TFCE_PRIORITY | IXGBE_RMCS_TFCE_802_3X);
378 
379 	/*
380 	 * The possible values of fc.current_mode are:
381 	 * 0: Flow control is completely disabled
382 	 * 1: Rx flow control is enabled (we can receive pause frames,
383 	 *    but not send pause frames).
384 	 * 2: Tx flow control is enabled (we can send pause frames but
385 	 *     we do not support receiving pause frames).
386 	 * 3: Both Rx and Tx flow control (symmetric) are enabled.
387 	 * other: Invalid.
388 	 */
389 	switch (hw->fc.current_mode) {
390 	case ixgbe_fc_none:
391 		/*
392 		 * Flow control is disabled by software override or autoneg.
393 		 * The code below will actually disable it in the HW.
394 		 */
395 		break;
396 	case ixgbe_fc_rx_pause:
397 		/*
398 		 * Rx Flow control is enabled and Tx Flow control is
399 		 * disabled by software override. Since there really
400 		 * isn't a way to advertise that we are capable of RX
401 		 * Pause ONLY, we will advertise that we support both
402 		 * symmetric and asymmetric Rx PAUSE.  Later, we will
403 		 * disable the adapter's ability to send PAUSE frames.
404 		 */
405 		fctrl_reg |= IXGBE_FCTRL_RFCE;
406 		break;
407 	case ixgbe_fc_tx_pause:
408 		/*
409 		 * Tx Flow control is enabled, and Rx Flow control is
410 		 * disabled by software override.
411 		 */
412 		rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
413 		break;
414 	case ixgbe_fc_full:
415 		/* Flow control (both Rx and Tx) is enabled by SW override. */
416 		fctrl_reg |= IXGBE_FCTRL_RFCE;
417 		rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
418 		break;
419 	default:
420 		hw_dbg(hw, "Flow control param set incorrectly\n");
421 		return IXGBE_ERR_CONFIG;
422 	}
423 
424 	/* Set 802.3x based flow control settings. */
425 	fctrl_reg |= IXGBE_FCTRL_DPF;
426 	IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl_reg);
427 	IXGBE_WRITE_REG(hw, IXGBE_RMCS, rmcs_reg);
428 
429 	/* Set up and enable Rx high/low water mark thresholds, enable XON. */
430 	for (i = 0; i < MAX_TRAFFIC_CLASS; i++) {
431 		if ((hw->fc.current_mode & ixgbe_fc_tx_pause) &&
432 		    hw->fc.high_water[i]) {
433 			fcrtl = (hw->fc.low_water[i] << 10) | IXGBE_FCRTL_XONE;
434 			fcrth = (hw->fc.high_water[i] << 10) | IXGBE_FCRTH_FCEN;
435 			IXGBE_WRITE_REG(hw, IXGBE_FCRTL(i), fcrtl);
436 			IXGBE_WRITE_REG(hw, IXGBE_FCRTH(i), fcrth);
437 		} else {
438 			IXGBE_WRITE_REG(hw, IXGBE_FCRTL(i), 0);
439 			IXGBE_WRITE_REG(hw, IXGBE_FCRTH(i), 0);
440 		}
441 
442 	}
443 
444 	/* Configure pause time (2 TCs per register) */
445 	reg = hw->fc.pause_time * 0x00010001;
446 	for (i = 0; i < (MAX_TRAFFIC_CLASS / 2); i++)
447 		IXGBE_WRITE_REG(hw, IXGBE_FCTTV(i), reg);
448 
449 	/* Configure flow control refresh threshold value */
450 	IXGBE_WRITE_REG(hw, IXGBE_FCRTV, hw->fc.pause_time / 2);
451 
452 	return 0;
453 }
454 
455 /**
456  *  ixgbe_start_mac_link_82598 - Configures MAC link settings
457  *  @hw: pointer to hardware structure
458  *
459  *  Configures link settings based on values in the ixgbe_hw struct.
460  *  Restarts the link.  Performs autonegotiation if needed.
461  **/
462 static s32 ixgbe_start_mac_link_82598(struct ixgbe_hw *hw,
463 				      bool autoneg_wait_to_complete)
464 {
465 	u32 autoc_reg;
466 	u32 links_reg;
467 	u32 i;
468 	s32 status = 0;
469 
470 	/* Restart link */
471 	autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
472 	autoc_reg |= IXGBE_AUTOC_AN_RESTART;
473 	IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
474 
475 	/* Only poll for autoneg to complete if specified to do so */
476 	if (autoneg_wait_to_complete) {
477 		if ((autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
478 		     IXGBE_AUTOC_LMS_KX4_AN ||
479 		    (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
480 		     IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
481 			links_reg = 0; /* Just in case Autoneg time = 0 */
482 			for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
483 				links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
484 				if (links_reg & IXGBE_LINKS_KX_AN_COMP)
485 					break;
486 				msleep(100);
487 			}
488 			if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
489 				status = IXGBE_ERR_AUTONEG_NOT_COMPLETE;
490 				hw_dbg(hw, "Autonegotiation did not complete.\n");
491 			}
492 		}
493 	}
494 
495 	/* Add delay to filter out noises during initial link setup */
496 	msleep(50);
497 
498 	return status;
499 }
500 
501 /**
502  *  ixgbe_validate_link_ready - Function looks for phy link
503  *  @hw: pointer to hardware structure
504  *
505  *  Function indicates success when phy link is available. If phy is not ready
506  *  within 5 seconds of MAC indicating link, the function returns error.
507  **/
508 static s32 ixgbe_validate_link_ready(struct ixgbe_hw *hw)
509 {
510 	u32 timeout;
511 	u16 an_reg;
512 
513 	if (hw->device_id != IXGBE_DEV_ID_82598AT2)
514 		return 0;
515 
516 	for (timeout = 0;
517 	     timeout < IXGBE_VALIDATE_LINK_READY_TIMEOUT; timeout++) {
518 		hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN, &an_reg);
519 
520 		if ((an_reg & MDIO_AN_STAT1_COMPLETE) &&
521 		    (an_reg & MDIO_STAT1_LSTATUS))
522 			break;
523 
524 		msleep(100);
525 	}
526 
527 	if (timeout == IXGBE_VALIDATE_LINK_READY_TIMEOUT) {
528 		hw_dbg(hw, "Link was indicated but link is down\n");
529 		return IXGBE_ERR_LINK_SETUP;
530 	}
531 
532 	return 0;
533 }
534 
535 /**
536  *  ixgbe_check_mac_link_82598 - Get link/speed status
537  *  @hw: pointer to hardware structure
538  *  @speed: pointer to link speed
539  *  @link_up: true is link is up, false otherwise
540  *  @link_up_wait_to_complete: bool used to wait for link up or not
541  *
542  *  Reads the links register to determine if link is up and the current speed
543  **/
544 static s32 ixgbe_check_mac_link_82598(struct ixgbe_hw *hw,
545 				      ixgbe_link_speed *speed, bool *link_up,
546 				      bool link_up_wait_to_complete)
547 {
548 	u32 links_reg;
549 	u32 i;
550 	u16 link_reg, adapt_comp_reg;
551 
552 	/*
553 	 * SERDES PHY requires us to read link status from register 0xC79F.
554 	 * Bit 0 set indicates link is up/ready; clear indicates link down.
555 	 * 0xC00C is read to check that the XAUI lanes are active.  Bit 0
556 	 * clear indicates active; set indicates inactive.
557 	 */
558 	if (hw->phy.type == ixgbe_phy_nl) {
559 		hw->phy.ops.read_reg(hw, 0xC79F, MDIO_MMD_PMAPMD, &link_reg);
560 		hw->phy.ops.read_reg(hw, 0xC79F, MDIO_MMD_PMAPMD, &link_reg);
561 		hw->phy.ops.read_reg(hw, 0xC00C, MDIO_MMD_PMAPMD,
562 				     &adapt_comp_reg);
563 		if (link_up_wait_to_complete) {
564 			for (i = 0; i < IXGBE_LINK_UP_TIME; i++) {
565 				if ((link_reg & 1) &&
566 				    ((adapt_comp_reg & 1) == 0)) {
567 					*link_up = true;
568 					break;
569 				} else {
570 					*link_up = false;
571 				}
572 				msleep(100);
573 				hw->phy.ops.read_reg(hw, 0xC79F,
574 						     MDIO_MMD_PMAPMD,
575 						     &link_reg);
576 				hw->phy.ops.read_reg(hw, 0xC00C,
577 						     MDIO_MMD_PMAPMD,
578 						     &adapt_comp_reg);
579 			}
580 		} else {
581 			if ((link_reg & 1) && ((adapt_comp_reg & 1) == 0))
582 				*link_up = true;
583 			else
584 				*link_up = false;
585 		}
586 
587 		if (!*link_up)
588 			return 0;
589 	}
590 
591 	links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
592 	if (link_up_wait_to_complete) {
593 		for (i = 0; i < IXGBE_LINK_UP_TIME; i++) {
594 			if (links_reg & IXGBE_LINKS_UP) {
595 				*link_up = true;
596 				break;
597 			} else {
598 				*link_up = false;
599 			}
600 			msleep(100);
601 			links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
602 		}
603 	} else {
604 		if (links_reg & IXGBE_LINKS_UP)
605 			*link_up = true;
606 		else
607 			*link_up = false;
608 	}
609 
610 	if (links_reg & IXGBE_LINKS_SPEED)
611 		*speed = IXGBE_LINK_SPEED_10GB_FULL;
612 	else
613 		*speed = IXGBE_LINK_SPEED_1GB_FULL;
614 
615 	if ((hw->device_id == IXGBE_DEV_ID_82598AT2) && *link_up &&
616 	    (ixgbe_validate_link_ready(hw) != 0))
617 		*link_up = false;
618 
619 	return 0;
620 }
621 
622 /**
623  *  ixgbe_setup_mac_link_82598 - Set MAC link speed
624  *  @hw: pointer to hardware structure
625  *  @speed: new link speed
626  *  @autoneg_wait_to_complete: true when waiting for completion is needed
627  *
628  *  Set the link speed in the AUTOC register and restarts link.
629  **/
630 static s32 ixgbe_setup_mac_link_82598(struct ixgbe_hw *hw,
631 				      ixgbe_link_speed speed,
632 				      bool autoneg_wait_to_complete)
633 {
634 	bool		 autoneg	   = false;
635 	ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN;
636 	u32              curr_autoc        = IXGBE_READ_REG(hw, IXGBE_AUTOC);
637 	u32              autoc             = curr_autoc;
638 	u32              link_mode         = autoc & IXGBE_AUTOC_LMS_MASK;
639 
640 	/* Check to see if speed passed in is supported. */
641 	ixgbe_get_link_capabilities_82598(hw, &link_capabilities, &autoneg);
642 	speed &= link_capabilities;
643 
644 	if (speed == IXGBE_LINK_SPEED_UNKNOWN)
645 		return IXGBE_ERR_LINK_SETUP;
646 
647 	/* Set KX4/KX support according to speed requested */
648 	else if (link_mode == IXGBE_AUTOC_LMS_KX4_AN ||
649 		 link_mode == IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
650 		autoc &= ~IXGBE_AUTOC_KX4_KX_SUPP_MASK;
651 		if (speed & IXGBE_LINK_SPEED_10GB_FULL)
652 			autoc |= IXGBE_AUTOC_KX4_SUPP;
653 		if (speed & IXGBE_LINK_SPEED_1GB_FULL)
654 			autoc |= IXGBE_AUTOC_KX_SUPP;
655 		if (autoc != curr_autoc)
656 			IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc);
657 	}
658 
659 	/* Setup and restart the link based on the new values in
660 	 * ixgbe_hw This will write the AUTOC register based on the new
661 	 * stored values
662 	 */
663 	return ixgbe_start_mac_link_82598(hw, autoneg_wait_to_complete);
664 }
665 
666 
667 /**
668  *  ixgbe_setup_copper_link_82598 - Set the PHY autoneg advertised field
669  *  @hw: pointer to hardware structure
670  *  @speed: new link speed
671  *  @autoneg_wait_to_complete: true if waiting is needed to complete
672  *
673  *  Sets the link speed in the AUTOC register in the MAC and restarts link.
674  **/
675 static s32 ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw,
676 					       ixgbe_link_speed speed,
677 					       bool autoneg_wait_to_complete)
678 {
679 	s32 status;
680 
681 	/* Setup the PHY according to input speed */
682 	status = hw->phy.ops.setup_link_speed(hw, speed,
683 					      autoneg_wait_to_complete);
684 	/* Set up MAC */
685 	ixgbe_start_mac_link_82598(hw, autoneg_wait_to_complete);
686 
687 	return status;
688 }
689 
690 /**
691  *  ixgbe_reset_hw_82598 - Performs hardware reset
692  *  @hw: pointer to hardware structure
693  *
694  *  Resets the hardware by resetting the transmit and receive units, masks and
695  *  clears all interrupts, performing a PHY reset, and performing a link (MAC)
696  *  reset.
697  **/
698 static s32 ixgbe_reset_hw_82598(struct ixgbe_hw *hw)
699 {
700 	s32 status;
701 	s32 phy_status = 0;
702 	u32 ctrl;
703 	u32 gheccr;
704 	u32 i;
705 	u32 autoc;
706 	u8  analog_val;
707 
708 	/* Call adapter stop to disable tx/rx and clear interrupts */
709 	status = hw->mac.ops.stop_adapter(hw);
710 	if (status)
711 		return status;
712 
713 	/*
714 	 * Power up the Atlas Tx lanes if they are currently powered down.
715 	 * Atlas Tx lanes are powered down for MAC loopback tests, but
716 	 * they are not automatically restored on reset.
717 	 */
718 	hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK, &analog_val);
719 	if (analog_val & IXGBE_ATLAS_PDN_TX_REG_EN) {
720 		/* Enable Tx Atlas so packets can be transmitted again */
721 		hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
722 					     &analog_val);
723 		analog_val &= ~IXGBE_ATLAS_PDN_TX_REG_EN;
724 		hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
725 					      analog_val);
726 
727 		hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
728 					     &analog_val);
729 		analog_val &= ~IXGBE_ATLAS_PDN_TX_10G_QL_ALL;
730 		hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
731 					      analog_val);
732 
733 		hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
734 					     &analog_val);
735 		analog_val &= ~IXGBE_ATLAS_PDN_TX_1G_QL_ALL;
736 		hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
737 					      analog_val);
738 
739 		hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
740 					     &analog_val);
741 		analog_val &= ~IXGBE_ATLAS_PDN_TX_AN_QL_ALL;
742 		hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
743 					      analog_val);
744 	}
745 
746 	/* Reset PHY */
747 	if (hw->phy.reset_disable == false) {
748 		/* PHY ops must be identified and initialized prior to reset */
749 
750 		/* Init PHY and function pointers, perform SFP setup */
751 		phy_status = hw->phy.ops.init(hw);
752 		if (phy_status == IXGBE_ERR_SFP_NOT_SUPPORTED)
753 			return phy_status;
754 		if (phy_status == IXGBE_ERR_SFP_NOT_PRESENT)
755 			goto mac_reset_top;
756 
757 		hw->phy.ops.reset(hw);
758 	}
759 
760 mac_reset_top:
761 	/*
762 	 * Issue global reset to the MAC.  This needs to be a SW reset.
763 	 * If link reset is used, it might reset the MAC when mng is using it
764 	 */
765 	ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL) | IXGBE_CTRL_RST;
766 	IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
767 	IXGBE_WRITE_FLUSH(hw);
768 	usleep_range(1000, 1200);
769 
770 	/* Poll for reset bit to self-clear indicating reset is complete */
771 	for (i = 0; i < 10; i++) {
772 		ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
773 		if (!(ctrl & IXGBE_CTRL_RST))
774 			break;
775 		udelay(1);
776 	}
777 	if (ctrl & IXGBE_CTRL_RST) {
778 		status = IXGBE_ERR_RESET_FAILED;
779 		hw_dbg(hw, "Reset polling failed to complete.\n");
780 	}
781 
782 	msleep(50);
783 
784 	/*
785 	 * Double resets are required for recovery from certain error
786 	 * conditions.  Between resets, it is necessary to stall to allow time
787 	 * for any pending HW events to complete.
788 	 */
789 	if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
790 		hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
791 		goto mac_reset_top;
792 	}
793 
794 	gheccr = IXGBE_READ_REG(hw, IXGBE_GHECCR);
795 	gheccr &= ~(BIT(21) | BIT(18) | BIT(9) | BIT(6));
796 	IXGBE_WRITE_REG(hw, IXGBE_GHECCR, gheccr);
797 
798 	/*
799 	 * Store the original AUTOC value if it has not been
800 	 * stored off yet.  Otherwise restore the stored original
801 	 * AUTOC value since the reset operation sets back to deaults.
802 	 */
803 	autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
804 	if (hw->mac.orig_link_settings_stored == false) {
805 		hw->mac.orig_autoc = autoc;
806 		hw->mac.orig_link_settings_stored = true;
807 	} else if (autoc != hw->mac.orig_autoc) {
808 		IXGBE_WRITE_REG(hw, IXGBE_AUTOC, hw->mac.orig_autoc);
809 	}
810 
811 	/* Store the permanent mac address */
812 	hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
813 
814 	/*
815 	 * Store MAC address from RAR0, clear receive address registers, and
816 	 * clear the multicast table
817 	 */
818 	hw->mac.ops.init_rx_addrs(hw);
819 
820 	if (phy_status)
821 		status = phy_status;
822 
823 	return status;
824 }
825 
826 /**
827  *  ixgbe_set_vmdq_82598 - Associate a VMDq set index with a rx address
828  *  @hw: pointer to hardware struct
829  *  @rar: receive address register index to associate with a VMDq index
830  *  @vmdq: VMDq set index
831  **/
832 static s32 ixgbe_set_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
833 {
834 	u32 rar_high;
835 	u32 rar_entries = hw->mac.num_rar_entries;
836 
837 	/* Make sure we are using a valid rar index range */
838 	if (rar >= rar_entries) {
839 		hw_dbg(hw, "RAR index %d is out of range.\n", rar);
840 		return IXGBE_ERR_INVALID_ARGUMENT;
841 	}
842 
843 	rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
844 	rar_high &= ~IXGBE_RAH_VIND_MASK;
845 	rar_high |= ((vmdq << IXGBE_RAH_VIND_SHIFT) & IXGBE_RAH_VIND_MASK);
846 	IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
847 	return 0;
848 }
849 
850 /**
851  *  ixgbe_clear_vmdq_82598 - Disassociate a VMDq set index from an rx address
852  *  @hw: pointer to hardware struct
853  *  @rar: receive address register index to associate with a VMDq index
854  *  @vmdq: VMDq clear index (not used in 82598, but elsewhere)
855  **/
856 static s32 ixgbe_clear_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
857 {
858 	u32 rar_high;
859 	u32 rar_entries = hw->mac.num_rar_entries;
860 
861 
862 	/* Make sure we are using a valid rar index range */
863 	if (rar >= rar_entries) {
864 		hw_dbg(hw, "RAR index %d is out of range.\n", rar);
865 		return IXGBE_ERR_INVALID_ARGUMENT;
866 	}
867 
868 	rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
869 	if (rar_high & IXGBE_RAH_VIND_MASK) {
870 		rar_high &= ~IXGBE_RAH_VIND_MASK;
871 		IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
872 	}
873 
874 	return 0;
875 }
876 
877 /**
878  *  ixgbe_set_vfta_82598 - Set VLAN filter table
879  *  @hw: pointer to hardware structure
880  *  @vlan: VLAN id to write to VLAN filter
881  *  @vind: VMDq output index that maps queue to VLAN id in VFTA
882  *  @vlan_on: boolean flag to turn on/off VLAN in VFTA
883  *  @vlvf_bypass: boolean flag - unused
884  *
885  *  Turn on/off specified VLAN in the VLAN filter table.
886  **/
887 static s32 ixgbe_set_vfta_82598(struct ixgbe_hw *hw, u32 vlan, u32 vind,
888 				bool vlan_on, bool vlvf_bypass)
889 {
890 	u32 regindex;
891 	u32 bitindex;
892 	u32 bits;
893 	u32 vftabyte;
894 
895 	if (vlan > 4095)
896 		return IXGBE_ERR_PARAM;
897 
898 	/* Determine 32-bit word position in array */
899 	regindex = (vlan >> 5) & 0x7F;   /* upper seven bits */
900 
901 	/* Determine the location of the (VMD) queue index */
902 	vftabyte =  ((vlan >> 3) & 0x03); /* bits (4:3) indicating byte array */
903 	bitindex = (vlan & 0x7) << 2;    /* lower 3 bits indicate nibble */
904 
905 	/* Set the nibble for VMD queue index */
906 	bits = IXGBE_READ_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex));
907 	bits &= (~(0x0F << bitindex));
908 	bits |= (vind << bitindex);
909 	IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex), bits);
910 
911 	/* Determine the location of the bit for this VLAN id */
912 	bitindex = vlan & 0x1F;   /* lower five bits */
913 
914 	bits = IXGBE_READ_REG(hw, IXGBE_VFTA(regindex));
915 	if (vlan_on)
916 		/* Turn on this VLAN id */
917 		bits |= BIT(bitindex);
918 	else
919 		/* Turn off this VLAN id */
920 		bits &= ~BIT(bitindex);
921 	IXGBE_WRITE_REG(hw, IXGBE_VFTA(regindex), bits);
922 
923 	return 0;
924 }
925 
926 /**
927  *  ixgbe_clear_vfta_82598 - Clear VLAN filter table
928  *  @hw: pointer to hardware structure
929  *
930  *  Clears the VLAN filer table, and the VMDq index associated with the filter
931  **/
932 static s32 ixgbe_clear_vfta_82598(struct ixgbe_hw *hw)
933 {
934 	u32 offset;
935 	u32 vlanbyte;
936 
937 	for (offset = 0; offset < hw->mac.vft_size; offset++)
938 		IXGBE_WRITE_REG(hw, IXGBE_VFTA(offset), 0);
939 
940 	for (vlanbyte = 0; vlanbyte < 4; vlanbyte++)
941 		for (offset = 0; offset < hw->mac.vft_size; offset++)
942 			IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vlanbyte, offset),
943 					0);
944 
945 	return 0;
946 }
947 
948 /**
949  *  ixgbe_read_analog_reg8_82598 - Reads 8 bit Atlas analog register
950  *  @hw: pointer to hardware structure
951  *  @reg: analog register to read
952  *  @val: read value
953  *
954  *  Performs read operation to Atlas analog register specified.
955  **/
956 static s32 ixgbe_read_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 *val)
957 {
958 	u32  atlas_ctl;
959 
960 	IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL,
961 			IXGBE_ATLASCTL_WRITE_CMD | (reg << 8));
962 	IXGBE_WRITE_FLUSH(hw);
963 	udelay(10);
964 	atlas_ctl = IXGBE_READ_REG(hw, IXGBE_ATLASCTL);
965 	*val = (u8)atlas_ctl;
966 
967 	return 0;
968 }
969 
970 /**
971  *  ixgbe_write_analog_reg8_82598 - Writes 8 bit Atlas analog register
972  *  @hw: pointer to hardware structure
973  *  @reg: atlas register to write
974  *  @val: value to write
975  *
976  *  Performs write operation to Atlas analog register specified.
977  **/
978 static s32 ixgbe_write_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 val)
979 {
980 	u32  atlas_ctl;
981 
982 	atlas_ctl = (reg << 8) | val;
983 	IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL, atlas_ctl);
984 	IXGBE_WRITE_FLUSH(hw);
985 	udelay(10);
986 
987 	return 0;
988 }
989 
990 /**
991  *  ixgbe_read_i2c_phy_82598 - Reads 8 bit word over I2C interface.
992  *  @hw: pointer to hardware structure
993  *  @dev_addr: address to read from
994  *  @byte_offset: byte offset to read from dev_addr
995  *  @eeprom_data: value read
996  *
997  *  Performs 8 byte read operation to SFP module's data over I2C interface.
998  **/
999 static s32 ixgbe_read_i2c_phy_82598(struct ixgbe_hw *hw, u8 dev_addr,
1000 				    u8 byte_offset, u8 *eeprom_data)
1001 {
1002 	s32 status = 0;
1003 	u16 sfp_addr = 0;
1004 	u16 sfp_data = 0;
1005 	u16 sfp_stat = 0;
1006 	u16 gssr;
1007 	u32 i;
1008 
1009 	if (IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_LAN_ID_1)
1010 		gssr = IXGBE_GSSR_PHY1_SM;
1011 	else
1012 		gssr = IXGBE_GSSR_PHY0_SM;
1013 
1014 	if (hw->mac.ops.acquire_swfw_sync(hw, gssr) != 0)
1015 		return IXGBE_ERR_SWFW_SYNC;
1016 
1017 	if (hw->phy.type == ixgbe_phy_nl) {
1018 		/*
1019 		 * phy SDA/SCL registers are at addresses 0xC30A to
1020 		 * 0xC30D.  These registers are used to talk to the SFP+
1021 		 * module's EEPROM through the SDA/SCL (I2C) interface.
1022 		 */
1023 		sfp_addr = (dev_addr << 8) + byte_offset;
1024 		sfp_addr = (sfp_addr | IXGBE_I2C_EEPROM_READ_MASK);
1025 		hw->phy.ops.write_reg_mdi(hw,
1026 					  IXGBE_MDIO_PMA_PMD_SDA_SCL_ADDR,
1027 					  MDIO_MMD_PMAPMD,
1028 					  sfp_addr);
1029 
1030 		/* Poll status */
1031 		for (i = 0; i < 100; i++) {
1032 			hw->phy.ops.read_reg_mdi(hw,
1033 						IXGBE_MDIO_PMA_PMD_SDA_SCL_STAT,
1034 						MDIO_MMD_PMAPMD,
1035 						&sfp_stat);
1036 			sfp_stat = sfp_stat & IXGBE_I2C_EEPROM_STATUS_MASK;
1037 			if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_IN_PROGRESS)
1038 				break;
1039 			usleep_range(10000, 20000);
1040 		}
1041 
1042 		if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_PASS) {
1043 			hw_dbg(hw, "EEPROM read did not pass.\n");
1044 			status = IXGBE_ERR_SFP_NOT_PRESENT;
1045 			goto out;
1046 		}
1047 
1048 		/* Read data */
1049 		hw->phy.ops.read_reg_mdi(hw, IXGBE_MDIO_PMA_PMD_SDA_SCL_DATA,
1050 					MDIO_MMD_PMAPMD, &sfp_data);
1051 
1052 		*eeprom_data = (u8)(sfp_data >> 8);
1053 	} else {
1054 		status = IXGBE_ERR_PHY;
1055 	}
1056 
1057 out:
1058 	hw->mac.ops.release_swfw_sync(hw, gssr);
1059 	return status;
1060 }
1061 
1062 /**
1063  *  ixgbe_read_i2c_eeprom_82598 - Reads 8 bit word over I2C interface.
1064  *  @hw: pointer to hardware structure
1065  *  @byte_offset: EEPROM byte offset to read
1066  *  @eeprom_data: value read
1067  *
1068  *  Performs 8 byte read operation to SFP module's EEPROM over I2C interface.
1069  **/
1070 static s32 ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
1071 				       u8 *eeprom_data)
1072 {
1073 	return ixgbe_read_i2c_phy_82598(hw, IXGBE_I2C_EEPROM_DEV_ADDR,
1074 					byte_offset, eeprom_data);
1075 }
1076 
1077 /**
1078  *  ixgbe_read_i2c_sff8472_82598 - Reads 8 bit word over I2C interface.
1079  *  @hw: pointer to hardware structure
1080  *  @byte_offset: byte offset at address 0xA2
1081  *  @eeprom_data: value read
1082  *
1083  *  Performs 8 byte read operation to SFP module's SFF-8472 data over I2C
1084  **/
1085 static s32 ixgbe_read_i2c_sff8472_82598(struct ixgbe_hw *hw, u8 byte_offset,
1086 				       u8 *sff8472_data)
1087 {
1088 	return ixgbe_read_i2c_phy_82598(hw, IXGBE_I2C_EEPROM_DEV_ADDR2,
1089 					byte_offset, sff8472_data);
1090 }
1091 
1092 /**
1093  *  ixgbe_set_lan_id_multi_port_pcie_82598 - Set LAN id for PCIe multiple
1094  *  port devices.
1095  *  @hw: pointer to the HW structure
1096  *
1097  *  Calls common function and corrects issue with some single port devices
1098  *  that enable LAN1 but not LAN0.
1099  **/
1100 static void ixgbe_set_lan_id_multi_port_pcie_82598(struct ixgbe_hw *hw)
1101 {
1102 	struct ixgbe_bus_info *bus = &hw->bus;
1103 	u16 pci_gen = 0;
1104 	u16 pci_ctrl2 = 0;
1105 
1106 	ixgbe_set_lan_id_multi_port_pcie(hw);
1107 
1108 	/* check if LAN0 is disabled */
1109 	hw->eeprom.ops.read(hw, IXGBE_PCIE_GENERAL_PTR, &pci_gen);
1110 	if ((pci_gen != 0) && (pci_gen != 0xFFFF)) {
1111 
1112 		hw->eeprom.ops.read(hw, pci_gen + IXGBE_PCIE_CTRL2, &pci_ctrl2);
1113 
1114 		/* if LAN0 is completely disabled force function to 0 */
1115 		if ((pci_ctrl2 & IXGBE_PCIE_CTRL2_LAN_DISABLE) &&
1116 		    !(pci_ctrl2 & IXGBE_PCIE_CTRL2_DISABLE_SELECT) &&
1117 		    !(pci_ctrl2 & IXGBE_PCIE_CTRL2_DUMMY_ENABLE)) {
1118 
1119 			bus->func = 0;
1120 		}
1121 	}
1122 }
1123 
1124 /**
1125  * ixgbe_set_rxpba_82598 - Initialize RX packet buffer
1126  * @hw: pointer to hardware structure
1127  * @num_pb: number of packet buffers to allocate
1128  * @headroom: reserve n KB of headroom
1129  * @strategy: packet buffer allocation strategy
1130  **/
1131 static void ixgbe_set_rxpba_82598(struct ixgbe_hw *hw, int num_pb,
1132 				  u32 headroom, int strategy)
1133 {
1134 	u32 rxpktsize = IXGBE_RXPBSIZE_64KB;
1135 	u8  i = 0;
1136 
1137 	if (!num_pb)
1138 		return;
1139 
1140 	/* Setup Rx packet buffer sizes */
1141 	switch (strategy) {
1142 	case PBA_STRATEGY_WEIGHTED:
1143 		/* Setup the first four at 80KB */
1144 		rxpktsize = IXGBE_RXPBSIZE_80KB;
1145 		for (; i < 4; i++)
1146 			IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
1147 		/* Setup the last four at 48KB...don't re-init i */
1148 		rxpktsize = IXGBE_RXPBSIZE_48KB;
1149 		/* Fall Through */
1150 	case PBA_STRATEGY_EQUAL:
1151 	default:
1152 		/* Divide the remaining Rx packet buffer evenly among the TCs */
1153 		for (; i < IXGBE_MAX_PACKET_BUFFERS; i++)
1154 			IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
1155 		break;
1156 	}
1157 
1158 	/* Setup Tx packet buffer sizes */
1159 	for (i = 0; i < IXGBE_MAX_PACKET_BUFFERS; i++)
1160 		IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i), IXGBE_TXPBSIZE_40KB);
1161 }
1162 
1163 static const struct ixgbe_mac_operations mac_ops_82598 = {
1164 	.init_hw		= &ixgbe_init_hw_generic,
1165 	.reset_hw		= &ixgbe_reset_hw_82598,
1166 	.start_hw		= &ixgbe_start_hw_82598,
1167 	.clear_hw_cntrs		= &ixgbe_clear_hw_cntrs_generic,
1168 	.get_media_type		= &ixgbe_get_media_type_82598,
1169 	.enable_rx_dma          = &ixgbe_enable_rx_dma_generic,
1170 	.get_mac_addr		= &ixgbe_get_mac_addr_generic,
1171 	.stop_adapter		= &ixgbe_stop_adapter_generic,
1172 	.get_bus_info           = &ixgbe_get_bus_info_generic,
1173 	.set_lan_id             = &ixgbe_set_lan_id_multi_port_pcie_82598,
1174 	.read_analog_reg8	= &ixgbe_read_analog_reg8_82598,
1175 	.write_analog_reg8	= &ixgbe_write_analog_reg8_82598,
1176 	.setup_link		= &ixgbe_setup_mac_link_82598,
1177 	.set_rxpba		= &ixgbe_set_rxpba_82598,
1178 	.check_link		= &ixgbe_check_mac_link_82598,
1179 	.get_link_capabilities	= &ixgbe_get_link_capabilities_82598,
1180 	.led_on			= &ixgbe_led_on_generic,
1181 	.led_off		= &ixgbe_led_off_generic,
1182 	.blink_led_start	= &ixgbe_blink_led_start_generic,
1183 	.blink_led_stop		= &ixgbe_blink_led_stop_generic,
1184 	.set_rar		= &ixgbe_set_rar_generic,
1185 	.clear_rar		= &ixgbe_clear_rar_generic,
1186 	.set_vmdq		= &ixgbe_set_vmdq_82598,
1187 	.clear_vmdq		= &ixgbe_clear_vmdq_82598,
1188 	.init_rx_addrs		= &ixgbe_init_rx_addrs_generic,
1189 	.update_mc_addr_list	= &ixgbe_update_mc_addr_list_generic,
1190 	.enable_mc		= &ixgbe_enable_mc_generic,
1191 	.disable_mc		= &ixgbe_disable_mc_generic,
1192 	.clear_vfta		= &ixgbe_clear_vfta_82598,
1193 	.set_vfta		= &ixgbe_set_vfta_82598,
1194 	.fc_enable		= &ixgbe_fc_enable_82598,
1195 	.setup_fc		= ixgbe_setup_fc_generic,
1196 	.set_fw_drv_ver         = NULL,
1197 	.acquire_swfw_sync      = &ixgbe_acquire_swfw_sync,
1198 	.release_swfw_sync      = &ixgbe_release_swfw_sync,
1199 	.init_swfw_sync		= NULL,
1200 	.get_thermal_sensor_data = NULL,
1201 	.init_thermal_sensor_thresh = NULL,
1202 	.prot_autoc_read	= &prot_autoc_read_generic,
1203 	.prot_autoc_write	= &prot_autoc_write_generic,
1204 	.enable_rx		= &ixgbe_enable_rx_generic,
1205 	.disable_rx		= &ixgbe_disable_rx_generic,
1206 };
1207 
1208 static const struct ixgbe_eeprom_operations eeprom_ops_82598 = {
1209 	.init_params		= &ixgbe_init_eeprom_params_generic,
1210 	.read			= &ixgbe_read_eerd_generic,
1211 	.write			= &ixgbe_write_eeprom_generic,
1212 	.write_buffer		= &ixgbe_write_eeprom_buffer_bit_bang_generic,
1213 	.read_buffer		= &ixgbe_read_eerd_buffer_generic,
1214 	.calc_checksum          = &ixgbe_calc_eeprom_checksum_generic,
1215 	.validate_checksum	= &ixgbe_validate_eeprom_checksum_generic,
1216 	.update_checksum	= &ixgbe_update_eeprom_checksum_generic,
1217 };
1218 
1219 static const struct ixgbe_phy_operations phy_ops_82598 = {
1220 	.identify		= &ixgbe_identify_phy_generic,
1221 	.identify_sfp		= &ixgbe_identify_module_generic,
1222 	.init			= &ixgbe_init_phy_ops_82598,
1223 	.reset			= &ixgbe_reset_phy_generic,
1224 	.read_reg		= &ixgbe_read_phy_reg_generic,
1225 	.write_reg		= &ixgbe_write_phy_reg_generic,
1226 	.read_reg_mdi		= &ixgbe_read_phy_reg_mdi,
1227 	.write_reg_mdi		= &ixgbe_write_phy_reg_mdi,
1228 	.setup_link		= &ixgbe_setup_phy_link_generic,
1229 	.setup_link_speed	= &ixgbe_setup_phy_link_speed_generic,
1230 	.read_i2c_sff8472	= &ixgbe_read_i2c_sff8472_82598,
1231 	.read_i2c_eeprom	= &ixgbe_read_i2c_eeprom_82598,
1232 	.check_overtemp		= &ixgbe_tn_check_overtemp,
1233 };
1234 
1235 const struct ixgbe_info ixgbe_82598_info = {
1236 	.mac			= ixgbe_mac_82598EB,
1237 	.get_invariants		= &ixgbe_get_invariants_82598,
1238 	.mac_ops		= &mac_ops_82598,
1239 	.eeprom_ops		= &eeprom_ops_82598,
1240 	.phy_ops		= &phy_ops_82598,
1241 	.mvals			= ixgbe_mvals_8259X,
1242 };
1243