xref: /openbmc/linux/drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c (revision 45cc842d5b75ba8f9a958f2dd12b95c6dd0452bd)
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 		break;
143 	case ixgbe_phy_nl:
144 		phy->ops.reset = &ixgbe_reset_phy_nl;
145 
146 		/* Call SFP+ identify routine to get the SFP+ module type */
147 		ret_val = phy->ops.identify_sfp(hw);
148 		if (ret_val)
149 			return ret_val;
150 		if (hw->phy.sfp_type == ixgbe_sfp_type_unknown)
151 			return IXGBE_ERR_SFP_NOT_SUPPORTED;
152 
153 		/* Check to see if SFP+ module is supported */
154 		ret_val = ixgbe_get_sfp_init_sequence_offsets(hw,
155 							    &list_offset,
156 							    &data_offset);
157 		if (ret_val)
158 			return IXGBE_ERR_SFP_NOT_SUPPORTED;
159 		break;
160 	default:
161 		break;
162 	}
163 
164 	return 0;
165 }
166 
167 /**
168  *  ixgbe_start_hw_82598 - Prepare hardware for Tx/Rx
169  *  @hw: pointer to hardware structure
170  *
171  *  Starts the hardware using the generic start_hw function.
172  *  Disables relaxed ordering for archs other than SPARC
173  *  Then set pcie completion timeout
174  *
175  **/
176 static s32 ixgbe_start_hw_82598(struct ixgbe_hw *hw)
177 {
178 	s32 ret_val;
179 
180 	ret_val = ixgbe_start_hw_generic(hw);
181 	if (ret_val)
182 		return ret_val;
183 
184 	/* set the completion timeout for interface */
185 	ixgbe_set_pcie_completion_timeout(hw);
186 
187 	return 0;
188 }
189 
190 /**
191  *  ixgbe_get_link_capabilities_82598 - Determines link capabilities
192  *  @hw: pointer to hardware structure
193  *  @speed: pointer to link speed
194  *  @autoneg: boolean auto-negotiation value
195  *
196  *  Determines the link capabilities by reading the AUTOC register.
197  **/
198 static s32 ixgbe_get_link_capabilities_82598(struct ixgbe_hw *hw,
199 					     ixgbe_link_speed *speed,
200 					     bool *autoneg)
201 {
202 	u32 autoc = 0;
203 
204 	/*
205 	 * Determine link capabilities based on the stored value of AUTOC,
206 	 * which represents EEPROM defaults.  If AUTOC value has not been
207 	 * stored, use the current register value.
208 	 */
209 	if (hw->mac.orig_link_settings_stored)
210 		autoc = hw->mac.orig_autoc;
211 	else
212 		autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
213 
214 	switch (autoc & IXGBE_AUTOC_LMS_MASK) {
215 	case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
216 		*speed = IXGBE_LINK_SPEED_1GB_FULL;
217 		*autoneg = false;
218 		break;
219 
220 	case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
221 		*speed = IXGBE_LINK_SPEED_10GB_FULL;
222 		*autoneg = false;
223 		break;
224 
225 	case IXGBE_AUTOC_LMS_1G_AN:
226 		*speed = IXGBE_LINK_SPEED_1GB_FULL;
227 		*autoneg = true;
228 		break;
229 
230 	case IXGBE_AUTOC_LMS_KX4_AN:
231 	case IXGBE_AUTOC_LMS_KX4_AN_1G_AN:
232 		*speed = IXGBE_LINK_SPEED_UNKNOWN;
233 		if (autoc & IXGBE_AUTOC_KX4_SUPP)
234 			*speed |= IXGBE_LINK_SPEED_10GB_FULL;
235 		if (autoc & IXGBE_AUTOC_KX_SUPP)
236 			*speed |= IXGBE_LINK_SPEED_1GB_FULL;
237 		*autoneg = true;
238 		break;
239 
240 	default:
241 		return IXGBE_ERR_LINK_SETUP;
242 	}
243 
244 	return 0;
245 }
246 
247 /**
248  *  ixgbe_get_media_type_82598 - Determines media type
249  *  @hw: pointer to hardware structure
250  *
251  *  Returns the media type (fiber, copper, backplane)
252  **/
253 static enum ixgbe_media_type ixgbe_get_media_type_82598(struct ixgbe_hw *hw)
254 {
255 	/* Detect if there is a copper PHY attached. */
256 	switch (hw->phy.type) {
257 	case ixgbe_phy_cu_unknown:
258 	case ixgbe_phy_tn:
259 		return ixgbe_media_type_copper;
260 
261 	default:
262 		break;
263 	}
264 
265 	/* Media type for I82598 is based on device ID */
266 	switch (hw->device_id) {
267 	case IXGBE_DEV_ID_82598:
268 	case IXGBE_DEV_ID_82598_BX:
269 		/* Default device ID is mezzanine card KX/KX4 */
270 		return ixgbe_media_type_backplane;
271 
272 	case IXGBE_DEV_ID_82598AF_DUAL_PORT:
273 	case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
274 	case IXGBE_DEV_ID_82598_DA_DUAL_PORT:
275 	case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM:
276 	case IXGBE_DEV_ID_82598EB_XF_LR:
277 	case IXGBE_DEV_ID_82598EB_SFP_LOM:
278 		return ixgbe_media_type_fiber;
279 
280 	case IXGBE_DEV_ID_82598EB_CX4:
281 	case IXGBE_DEV_ID_82598_CX4_DUAL_PORT:
282 		return ixgbe_media_type_cx4;
283 
284 	case IXGBE_DEV_ID_82598AT:
285 	case IXGBE_DEV_ID_82598AT2:
286 		return ixgbe_media_type_copper;
287 
288 	default:
289 		return ixgbe_media_type_unknown;
290 	}
291 }
292 
293 /**
294  *  ixgbe_fc_enable_82598 - Enable flow control
295  *  @hw: pointer to hardware structure
296  *
297  *  Enable flow control according to the current settings.
298  **/
299 static s32 ixgbe_fc_enable_82598(struct ixgbe_hw *hw)
300 {
301 	u32 fctrl_reg;
302 	u32 rmcs_reg;
303 	u32 reg;
304 	u32 fcrtl, fcrth;
305 	u32 link_speed = 0;
306 	int i;
307 	bool link_up;
308 
309 	/* Validate the water mark configuration */
310 	if (!hw->fc.pause_time)
311 		return IXGBE_ERR_INVALID_LINK_SETTINGS;
312 
313 	/* Low water mark of zero causes XOFF floods */
314 	for (i = 0; i < MAX_TRAFFIC_CLASS; i++) {
315 		if ((hw->fc.current_mode & ixgbe_fc_tx_pause) &&
316 		    hw->fc.high_water[i]) {
317 			if (!hw->fc.low_water[i] ||
318 			    hw->fc.low_water[i] >= hw->fc.high_water[i]) {
319 				hw_dbg(hw, "Invalid water mark configuration\n");
320 				return IXGBE_ERR_INVALID_LINK_SETTINGS;
321 			}
322 		}
323 	}
324 
325 	/*
326 	 * On 82598 having Rx FC on causes resets while doing 1G
327 	 * so if it's on turn it off once we know link_speed. For
328 	 * more details see 82598 Specification update.
329 	 */
330 	hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
331 	if (link_up && link_speed == IXGBE_LINK_SPEED_1GB_FULL) {
332 		switch (hw->fc.requested_mode) {
333 		case ixgbe_fc_full:
334 			hw->fc.requested_mode = ixgbe_fc_tx_pause;
335 			break;
336 		case ixgbe_fc_rx_pause:
337 			hw->fc.requested_mode = ixgbe_fc_none;
338 			break;
339 		default:
340 			/* no change */
341 			break;
342 		}
343 	}
344 
345 	/* Negotiate the fc mode to use */
346 	hw->mac.ops.fc_autoneg(hw);
347 
348 	/* Disable any previous flow control settings */
349 	fctrl_reg = IXGBE_READ_REG(hw, IXGBE_FCTRL);
350 	fctrl_reg &= ~(IXGBE_FCTRL_RFCE | IXGBE_FCTRL_RPFCE);
351 
352 	rmcs_reg = IXGBE_READ_REG(hw, IXGBE_RMCS);
353 	rmcs_reg &= ~(IXGBE_RMCS_TFCE_PRIORITY | IXGBE_RMCS_TFCE_802_3X);
354 
355 	/*
356 	 * The possible values of fc.current_mode are:
357 	 * 0: Flow control is completely disabled
358 	 * 1: Rx flow control is enabled (we can receive pause frames,
359 	 *    but not send pause frames).
360 	 * 2: Tx flow control is enabled (we can send pause frames but
361 	 *     we do not support receiving pause frames).
362 	 * 3: Both Rx and Tx flow control (symmetric) are enabled.
363 	 * other: Invalid.
364 	 */
365 	switch (hw->fc.current_mode) {
366 	case ixgbe_fc_none:
367 		/*
368 		 * Flow control is disabled by software override or autoneg.
369 		 * The code below will actually disable it in the HW.
370 		 */
371 		break;
372 	case ixgbe_fc_rx_pause:
373 		/*
374 		 * Rx Flow control is enabled and Tx Flow control is
375 		 * disabled by software override. Since there really
376 		 * isn't a way to advertise that we are capable of RX
377 		 * Pause ONLY, we will advertise that we support both
378 		 * symmetric and asymmetric Rx PAUSE.  Later, we will
379 		 * disable the adapter's ability to send PAUSE frames.
380 		 */
381 		fctrl_reg |= IXGBE_FCTRL_RFCE;
382 		break;
383 	case ixgbe_fc_tx_pause:
384 		/*
385 		 * Tx Flow control is enabled, and Rx Flow control is
386 		 * disabled by software override.
387 		 */
388 		rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
389 		break;
390 	case ixgbe_fc_full:
391 		/* Flow control (both Rx and Tx) is enabled by SW override. */
392 		fctrl_reg |= IXGBE_FCTRL_RFCE;
393 		rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
394 		break;
395 	default:
396 		hw_dbg(hw, "Flow control param set incorrectly\n");
397 		return IXGBE_ERR_CONFIG;
398 	}
399 
400 	/* Set 802.3x based flow control settings. */
401 	fctrl_reg |= IXGBE_FCTRL_DPF;
402 	IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl_reg);
403 	IXGBE_WRITE_REG(hw, IXGBE_RMCS, rmcs_reg);
404 
405 	/* Set up and enable Rx high/low water mark thresholds, enable XON. */
406 	for (i = 0; i < MAX_TRAFFIC_CLASS; i++) {
407 		if ((hw->fc.current_mode & ixgbe_fc_tx_pause) &&
408 		    hw->fc.high_water[i]) {
409 			fcrtl = (hw->fc.low_water[i] << 10) | IXGBE_FCRTL_XONE;
410 			fcrth = (hw->fc.high_water[i] << 10) | IXGBE_FCRTH_FCEN;
411 			IXGBE_WRITE_REG(hw, IXGBE_FCRTL(i), fcrtl);
412 			IXGBE_WRITE_REG(hw, IXGBE_FCRTH(i), fcrth);
413 		} else {
414 			IXGBE_WRITE_REG(hw, IXGBE_FCRTL(i), 0);
415 			IXGBE_WRITE_REG(hw, IXGBE_FCRTH(i), 0);
416 		}
417 
418 	}
419 
420 	/* Configure pause time (2 TCs per register) */
421 	reg = hw->fc.pause_time * 0x00010001;
422 	for (i = 0; i < (MAX_TRAFFIC_CLASS / 2); i++)
423 		IXGBE_WRITE_REG(hw, IXGBE_FCTTV(i), reg);
424 
425 	/* Configure flow control refresh threshold value */
426 	IXGBE_WRITE_REG(hw, IXGBE_FCRTV, hw->fc.pause_time / 2);
427 
428 	return 0;
429 }
430 
431 /**
432  *  ixgbe_start_mac_link_82598 - Configures MAC link settings
433  *  @hw: pointer to hardware structure
434  *  @autoneg_wait_to_complete: true when waiting for completion is needed
435  *
436  *  Configures link settings based on values in the ixgbe_hw struct.
437  *  Restarts the link.  Performs autonegotiation if needed.
438  **/
439 static s32 ixgbe_start_mac_link_82598(struct ixgbe_hw *hw,
440 				      bool autoneg_wait_to_complete)
441 {
442 	u32 autoc_reg;
443 	u32 links_reg;
444 	u32 i;
445 	s32 status = 0;
446 
447 	/* Restart link */
448 	autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
449 	autoc_reg |= IXGBE_AUTOC_AN_RESTART;
450 	IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
451 
452 	/* Only poll for autoneg to complete if specified to do so */
453 	if (autoneg_wait_to_complete) {
454 		if ((autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
455 		     IXGBE_AUTOC_LMS_KX4_AN ||
456 		    (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
457 		     IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
458 			links_reg = 0; /* Just in case Autoneg time = 0 */
459 			for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
460 				links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
461 				if (links_reg & IXGBE_LINKS_KX_AN_COMP)
462 					break;
463 				msleep(100);
464 			}
465 			if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
466 				status = IXGBE_ERR_AUTONEG_NOT_COMPLETE;
467 				hw_dbg(hw, "Autonegotiation did not complete.\n");
468 			}
469 		}
470 	}
471 
472 	/* Add delay to filter out noises during initial link setup */
473 	msleep(50);
474 
475 	return status;
476 }
477 
478 /**
479  *  ixgbe_validate_link_ready - Function looks for phy link
480  *  @hw: pointer to hardware structure
481  *
482  *  Function indicates success when phy link is available. If phy is not ready
483  *  within 5 seconds of MAC indicating link, the function returns error.
484  **/
485 static s32 ixgbe_validate_link_ready(struct ixgbe_hw *hw)
486 {
487 	u32 timeout;
488 	u16 an_reg;
489 
490 	if (hw->device_id != IXGBE_DEV_ID_82598AT2)
491 		return 0;
492 
493 	for (timeout = 0;
494 	     timeout < IXGBE_VALIDATE_LINK_READY_TIMEOUT; timeout++) {
495 		hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN, &an_reg);
496 
497 		if ((an_reg & MDIO_AN_STAT1_COMPLETE) &&
498 		    (an_reg & MDIO_STAT1_LSTATUS))
499 			break;
500 
501 		msleep(100);
502 	}
503 
504 	if (timeout == IXGBE_VALIDATE_LINK_READY_TIMEOUT) {
505 		hw_dbg(hw, "Link was indicated but link is down\n");
506 		return IXGBE_ERR_LINK_SETUP;
507 	}
508 
509 	return 0;
510 }
511 
512 /**
513  *  ixgbe_check_mac_link_82598 - Get link/speed status
514  *  @hw: pointer to hardware structure
515  *  @speed: pointer to link speed
516  *  @link_up: true is link is up, false otherwise
517  *  @link_up_wait_to_complete: bool used to wait for link up or not
518  *
519  *  Reads the links register to determine if link is up and the current speed
520  **/
521 static s32 ixgbe_check_mac_link_82598(struct ixgbe_hw *hw,
522 				      ixgbe_link_speed *speed, bool *link_up,
523 				      bool link_up_wait_to_complete)
524 {
525 	u32 links_reg;
526 	u32 i;
527 	u16 link_reg, adapt_comp_reg;
528 
529 	/*
530 	 * SERDES PHY requires us to read link status from register 0xC79F.
531 	 * Bit 0 set indicates link is up/ready; clear indicates link down.
532 	 * 0xC00C is read to check that the XAUI lanes are active.  Bit 0
533 	 * clear indicates active; set indicates inactive.
534 	 */
535 	if (hw->phy.type == ixgbe_phy_nl) {
536 		hw->phy.ops.read_reg(hw, 0xC79F, MDIO_MMD_PMAPMD, &link_reg);
537 		hw->phy.ops.read_reg(hw, 0xC79F, MDIO_MMD_PMAPMD, &link_reg);
538 		hw->phy.ops.read_reg(hw, 0xC00C, MDIO_MMD_PMAPMD,
539 				     &adapt_comp_reg);
540 		if (link_up_wait_to_complete) {
541 			for (i = 0; i < IXGBE_LINK_UP_TIME; i++) {
542 				if ((link_reg & 1) &&
543 				    ((adapt_comp_reg & 1) == 0)) {
544 					*link_up = true;
545 					break;
546 				} else {
547 					*link_up = false;
548 				}
549 				msleep(100);
550 				hw->phy.ops.read_reg(hw, 0xC79F,
551 						     MDIO_MMD_PMAPMD,
552 						     &link_reg);
553 				hw->phy.ops.read_reg(hw, 0xC00C,
554 						     MDIO_MMD_PMAPMD,
555 						     &adapt_comp_reg);
556 			}
557 		} else {
558 			if ((link_reg & 1) && ((adapt_comp_reg & 1) == 0))
559 				*link_up = true;
560 			else
561 				*link_up = false;
562 		}
563 
564 		if (!*link_up)
565 			return 0;
566 	}
567 
568 	links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
569 	if (link_up_wait_to_complete) {
570 		for (i = 0; i < IXGBE_LINK_UP_TIME; i++) {
571 			if (links_reg & IXGBE_LINKS_UP) {
572 				*link_up = true;
573 				break;
574 			} else {
575 				*link_up = false;
576 			}
577 			msleep(100);
578 			links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
579 		}
580 	} else {
581 		if (links_reg & IXGBE_LINKS_UP)
582 			*link_up = true;
583 		else
584 			*link_up = false;
585 	}
586 
587 	if (links_reg & IXGBE_LINKS_SPEED)
588 		*speed = IXGBE_LINK_SPEED_10GB_FULL;
589 	else
590 		*speed = IXGBE_LINK_SPEED_1GB_FULL;
591 
592 	if ((hw->device_id == IXGBE_DEV_ID_82598AT2) && *link_up &&
593 	    (ixgbe_validate_link_ready(hw) != 0))
594 		*link_up = false;
595 
596 	return 0;
597 }
598 
599 /**
600  *  ixgbe_setup_mac_link_82598 - Set MAC link speed
601  *  @hw: pointer to hardware structure
602  *  @speed: new link speed
603  *  @autoneg_wait_to_complete: true when waiting for completion is needed
604  *
605  *  Set the link speed in the AUTOC register and restarts link.
606  **/
607 static s32 ixgbe_setup_mac_link_82598(struct ixgbe_hw *hw,
608 				      ixgbe_link_speed speed,
609 				      bool autoneg_wait_to_complete)
610 {
611 	bool		 autoneg	   = false;
612 	ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN;
613 	u32              curr_autoc        = IXGBE_READ_REG(hw, IXGBE_AUTOC);
614 	u32              autoc             = curr_autoc;
615 	u32              link_mode         = autoc & IXGBE_AUTOC_LMS_MASK;
616 
617 	/* Check to see if speed passed in is supported. */
618 	ixgbe_get_link_capabilities_82598(hw, &link_capabilities, &autoneg);
619 	speed &= link_capabilities;
620 
621 	if (speed == IXGBE_LINK_SPEED_UNKNOWN)
622 		return IXGBE_ERR_LINK_SETUP;
623 
624 	/* Set KX4/KX support according to speed requested */
625 	else if (link_mode == IXGBE_AUTOC_LMS_KX4_AN ||
626 		 link_mode == IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
627 		autoc &= ~IXGBE_AUTOC_KX4_KX_SUPP_MASK;
628 		if (speed & IXGBE_LINK_SPEED_10GB_FULL)
629 			autoc |= IXGBE_AUTOC_KX4_SUPP;
630 		if (speed & IXGBE_LINK_SPEED_1GB_FULL)
631 			autoc |= IXGBE_AUTOC_KX_SUPP;
632 		if (autoc != curr_autoc)
633 			IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc);
634 	}
635 
636 	/* Setup and restart the link based on the new values in
637 	 * ixgbe_hw This will write the AUTOC register based on the new
638 	 * stored values
639 	 */
640 	return ixgbe_start_mac_link_82598(hw, autoneg_wait_to_complete);
641 }
642 
643 
644 /**
645  *  ixgbe_setup_copper_link_82598 - Set the PHY autoneg advertised field
646  *  @hw: pointer to hardware structure
647  *  @speed: new link speed
648  *  @autoneg_wait_to_complete: true if waiting is needed to complete
649  *
650  *  Sets the link speed in the AUTOC register in the MAC and restarts link.
651  **/
652 static s32 ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw,
653 					       ixgbe_link_speed speed,
654 					       bool autoneg_wait_to_complete)
655 {
656 	s32 status;
657 
658 	/* Setup the PHY according to input speed */
659 	status = hw->phy.ops.setup_link_speed(hw, speed,
660 					      autoneg_wait_to_complete);
661 	/* Set up MAC */
662 	ixgbe_start_mac_link_82598(hw, autoneg_wait_to_complete);
663 
664 	return status;
665 }
666 
667 /**
668  *  ixgbe_reset_hw_82598 - Performs hardware reset
669  *  @hw: pointer to hardware structure
670  *
671  *  Resets the hardware by resetting the transmit and receive units, masks and
672  *  clears all interrupts, performing a PHY reset, and performing a link (MAC)
673  *  reset.
674  **/
675 static s32 ixgbe_reset_hw_82598(struct ixgbe_hw *hw)
676 {
677 	s32 status;
678 	s32 phy_status = 0;
679 	u32 ctrl;
680 	u32 gheccr;
681 	u32 i;
682 	u32 autoc;
683 	u8  analog_val;
684 
685 	/* Call adapter stop to disable tx/rx and clear interrupts */
686 	status = hw->mac.ops.stop_adapter(hw);
687 	if (status)
688 		return status;
689 
690 	/*
691 	 * Power up the Atlas Tx lanes if they are currently powered down.
692 	 * Atlas Tx lanes are powered down for MAC loopback tests, but
693 	 * they are not automatically restored on reset.
694 	 */
695 	hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK, &analog_val);
696 	if (analog_val & IXGBE_ATLAS_PDN_TX_REG_EN) {
697 		/* Enable Tx Atlas so packets can be transmitted again */
698 		hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
699 					     &analog_val);
700 		analog_val &= ~IXGBE_ATLAS_PDN_TX_REG_EN;
701 		hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
702 					      analog_val);
703 
704 		hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
705 					     &analog_val);
706 		analog_val &= ~IXGBE_ATLAS_PDN_TX_10G_QL_ALL;
707 		hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
708 					      analog_val);
709 
710 		hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
711 					     &analog_val);
712 		analog_val &= ~IXGBE_ATLAS_PDN_TX_1G_QL_ALL;
713 		hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
714 					      analog_val);
715 
716 		hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
717 					     &analog_val);
718 		analog_val &= ~IXGBE_ATLAS_PDN_TX_AN_QL_ALL;
719 		hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
720 					      analog_val);
721 	}
722 
723 	/* Reset PHY */
724 	if (hw->phy.reset_disable == false) {
725 		/* PHY ops must be identified and initialized prior to reset */
726 
727 		/* Init PHY and function pointers, perform SFP setup */
728 		phy_status = hw->phy.ops.init(hw);
729 		if (phy_status == IXGBE_ERR_SFP_NOT_SUPPORTED)
730 			return phy_status;
731 		if (phy_status == IXGBE_ERR_SFP_NOT_PRESENT)
732 			goto mac_reset_top;
733 
734 		hw->phy.ops.reset(hw);
735 	}
736 
737 mac_reset_top:
738 	/*
739 	 * Issue global reset to the MAC.  This needs to be a SW reset.
740 	 * If link reset is used, it might reset the MAC when mng is using it
741 	 */
742 	ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL) | IXGBE_CTRL_RST;
743 	IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
744 	IXGBE_WRITE_FLUSH(hw);
745 	usleep_range(1000, 1200);
746 
747 	/* Poll for reset bit to self-clear indicating reset is complete */
748 	for (i = 0; i < 10; i++) {
749 		ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
750 		if (!(ctrl & IXGBE_CTRL_RST))
751 			break;
752 		udelay(1);
753 	}
754 	if (ctrl & IXGBE_CTRL_RST) {
755 		status = IXGBE_ERR_RESET_FAILED;
756 		hw_dbg(hw, "Reset polling failed to complete.\n");
757 	}
758 
759 	msleep(50);
760 
761 	/*
762 	 * Double resets are required for recovery from certain error
763 	 * conditions.  Between resets, it is necessary to stall to allow time
764 	 * for any pending HW events to complete.
765 	 */
766 	if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
767 		hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
768 		goto mac_reset_top;
769 	}
770 
771 	gheccr = IXGBE_READ_REG(hw, IXGBE_GHECCR);
772 	gheccr &= ~(BIT(21) | BIT(18) | BIT(9) | BIT(6));
773 	IXGBE_WRITE_REG(hw, IXGBE_GHECCR, gheccr);
774 
775 	/*
776 	 * Store the original AUTOC value if it has not been
777 	 * stored off yet.  Otherwise restore the stored original
778 	 * AUTOC value since the reset operation sets back to deaults.
779 	 */
780 	autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
781 	if (hw->mac.orig_link_settings_stored == false) {
782 		hw->mac.orig_autoc = autoc;
783 		hw->mac.orig_link_settings_stored = true;
784 	} else if (autoc != hw->mac.orig_autoc) {
785 		IXGBE_WRITE_REG(hw, IXGBE_AUTOC, hw->mac.orig_autoc);
786 	}
787 
788 	/* Store the permanent mac address */
789 	hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
790 
791 	/*
792 	 * Store MAC address from RAR0, clear receive address registers, and
793 	 * clear the multicast table
794 	 */
795 	hw->mac.ops.init_rx_addrs(hw);
796 
797 	if (phy_status)
798 		status = phy_status;
799 
800 	return status;
801 }
802 
803 /**
804  *  ixgbe_set_vmdq_82598 - Associate a VMDq set index with a rx address
805  *  @hw: pointer to hardware struct
806  *  @rar: receive address register index to associate with a VMDq index
807  *  @vmdq: VMDq set index
808  **/
809 static s32 ixgbe_set_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
810 {
811 	u32 rar_high;
812 	u32 rar_entries = hw->mac.num_rar_entries;
813 
814 	/* Make sure we are using a valid rar index range */
815 	if (rar >= rar_entries) {
816 		hw_dbg(hw, "RAR index %d is out of range.\n", rar);
817 		return IXGBE_ERR_INVALID_ARGUMENT;
818 	}
819 
820 	rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
821 	rar_high &= ~IXGBE_RAH_VIND_MASK;
822 	rar_high |= ((vmdq << IXGBE_RAH_VIND_SHIFT) & IXGBE_RAH_VIND_MASK);
823 	IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
824 	return 0;
825 }
826 
827 /**
828  *  ixgbe_clear_vmdq_82598 - Disassociate a VMDq set index from an rx address
829  *  @hw: pointer to hardware struct
830  *  @rar: receive address register index to associate with a VMDq index
831  *  @vmdq: VMDq clear index (not used in 82598, but elsewhere)
832  **/
833 static s32 ixgbe_clear_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
834 {
835 	u32 rar_high;
836 	u32 rar_entries = hw->mac.num_rar_entries;
837 
838 
839 	/* Make sure we are using a valid rar index range */
840 	if (rar >= rar_entries) {
841 		hw_dbg(hw, "RAR index %d is out of range.\n", rar);
842 		return IXGBE_ERR_INVALID_ARGUMENT;
843 	}
844 
845 	rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
846 	if (rar_high & IXGBE_RAH_VIND_MASK) {
847 		rar_high &= ~IXGBE_RAH_VIND_MASK;
848 		IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
849 	}
850 
851 	return 0;
852 }
853 
854 /**
855  *  ixgbe_set_vfta_82598 - Set VLAN filter table
856  *  @hw: pointer to hardware structure
857  *  @vlan: VLAN id to write to VLAN filter
858  *  @vind: VMDq output index that maps queue to VLAN id in VFTA
859  *  @vlan_on: boolean flag to turn on/off VLAN in VFTA
860  *  @vlvf_bypass: boolean flag - unused
861  *
862  *  Turn on/off specified VLAN in the VLAN filter table.
863  **/
864 static s32 ixgbe_set_vfta_82598(struct ixgbe_hw *hw, u32 vlan, u32 vind,
865 				bool vlan_on, bool vlvf_bypass)
866 {
867 	u32 regindex;
868 	u32 bitindex;
869 	u32 bits;
870 	u32 vftabyte;
871 
872 	if (vlan > 4095)
873 		return IXGBE_ERR_PARAM;
874 
875 	/* Determine 32-bit word position in array */
876 	regindex = (vlan >> 5) & 0x7F;   /* upper seven bits */
877 
878 	/* Determine the location of the (VMD) queue index */
879 	vftabyte =  ((vlan >> 3) & 0x03); /* bits (4:3) indicating byte array */
880 	bitindex = (vlan & 0x7) << 2;    /* lower 3 bits indicate nibble */
881 
882 	/* Set the nibble for VMD queue index */
883 	bits = IXGBE_READ_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex));
884 	bits &= (~(0x0F << bitindex));
885 	bits |= (vind << bitindex);
886 	IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex), bits);
887 
888 	/* Determine the location of the bit for this VLAN id */
889 	bitindex = vlan & 0x1F;   /* lower five bits */
890 
891 	bits = IXGBE_READ_REG(hw, IXGBE_VFTA(regindex));
892 	if (vlan_on)
893 		/* Turn on this VLAN id */
894 		bits |= BIT(bitindex);
895 	else
896 		/* Turn off this VLAN id */
897 		bits &= ~BIT(bitindex);
898 	IXGBE_WRITE_REG(hw, IXGBE_VFTA(regindex), bits);
899 
900 	return 0;
901 }
902 
903 /**
904  *  ixgbe_clear_vfta_82598 - Clear VLAN filter table
905  *  @hw: pointer to hardware structure
906  *
907  *  Clears the VLAN filer table, and the VMDq index associated with the filter
908  **/
909 static s32 ixgbe_clear_vfta_82598(struct ixgbe_hw *hw)
910 {
911 	u32 offset;
912 	u32 vlanbyte;
913 
914 	for (offset = 0; offset < hw->mac.vft_size; offset++)
915 		IXGBE_WRITE_REG(hw, IXGBE_VFTA(offset), 0);
916 
917 	for (vlanbyte = 0; vlanbyte < 4; vlanbyte++)
918 		for (offset = 0; offset < hw->mac.vft_size; offset++)
919 			IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vlanbyte, offset),
920 					0);
921 
922 	return 0;
923 }
924 
925 /**
926  *  ixgbe_read_analog_reg8_82598 - Reads 8 bit Atlas analog register
927  *  @hw: pointer to hardware structure
928  *  @reg: analog register to read
929  *  @val: read value
930  *
931  *  Performs read operation to Atlas analog register specified.
932  **/
933 static s32 ixgbe_read_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 *val)
934 {
935 	u32  atlas_ctl;
936 
937 	IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL,
938 			IXGBE_ATLASCTL_WRITE_CMD | (reg << 8));
939 	IXGBE_WRITE_FLUSH(hw);
940 	udelay(10);
941 	atlas_ctl = IXGBE_READ_REG(hw, IXGBE_ATLASCTL);
942 	*val = (u8)atlas_ctl;
943 
944 	return 0;
945 }
946 
947 /**
948  *  ixgbe_write_analog_reg8_82598 - Writes 8 bit Atlas analog register
949  *  @hw: pointer to hardware structure
950  *  @reg: atlas register to write
951  *  @val: value to write
952  *
953  *  Performs write operation to Atlas analog register specified.
954  **/
955 static s32 ixgbe_write_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 val)
956 {
957 	u32  atlas_ctl;
958 
959 	atlas_ctl = (reg << 8) | val;
960 	IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL, atlas_ctl);
961 	IXGBE_WRITE_FLUSH(hw);
962 	udelay(10);
963 
964 	return 0;
965 }
966 
967 /**
968  *  ixgbe_read_i2c_phy_82598 - Reads 8 bit word over I2C interface.
969  *  @hw: pointer to hardware structure
970  *  @dev_addr: address to read from
971  *  @byte_offset: byte offset to read from dev_addr
972  *  @eeprom_data: value read
973  *
974  *  Performs 8 byte read operation to SFP module's data over I2C interface.
975  **/
976 static s32 ixgbe_read_i2c_phy_82598(struct ixgbe_hw *hw, u8 dev_addr,
977 				    u8 byte_offset, u8 *eeprom_data)
978 {
979 	s32 status = 0;
980 	u16 sfp_addr = 0;
981 	u16 sfp_data = 0;
982 	u16 sfp_stat = 0;
983 	u16 gssr;
984 	u32 i;
985 
986 	if (IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_LAN_ID_1)
987 		gssr = IXGBE_GSSR_PHY1_SM;
988 	else
989 		gssr = IXGBE_GSSR_PHY0_SM;
990 
991 	if (hw->mac.ops.acquire_swfw_sync(hw, gssr) != 0)
992 		return IXGBE_ERR_SWFW_SYNC;
993 
994 	if (hw->phy.type == ixgbe_phy_nl) {
995 		/*
996 		 * phy SDA/SCL registers are at addresses 0xC30A to
997 		 * 0xC30D.  These registers are used to talk to the SFP+
998 		 * module's EEPROM through the SDA/SCL (I2C) interface.
999 		 */
1000 		sfp_addr = (dev_addr << 8) + byte_offset;
1001 		sfp_addr = (sfp_addr | IXGBE_I2C_EEPROM_READ_MASK);
1002 		hw->phy.ops.write_reg_mdi(hw,
1003 					  IXGBE_MDIO_PMA_PMD_SDA_SCL_ADDR,
1004 					  MDIO_MMD_PMAPMD,
1005 					  sfp_addr);
1006 
1007 		/* Poll status */
1008 		for (i = 0; i < 100; i++) {
1009 			hw->phy.ops.read_reg_mdi(hw,
1010 						IXGBE_MDIO_PMA_PMD_SDA_SCL_STAT,
1011 						MDIO_MMD_PMAPMD,
1012 						&sfp_stat);
1013 			sfp_stat = sfp_stat & IXGBE_I2C_EEPROM_STATUS_MASK;
1014 			if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_IN_PROGRESS)
1015 				break;
1016 			usleep_range(10000, 20000);
1017 		}
1018 
1019 		if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_PASS) {
1020 			hw_dbg(hw, "EEPROM read did not pass.\n");
1021 			status = IXGBE_ERR_SFP_NOT_PRESENT;
1022 			goto out;
1023 		}
1024 
1025 		/* Read data */
1026 		hw->phy.ops.read_reg_mdi(hw, IXGBE_MDIO_PMA_PMD_SDA_SCL_DATA,
1027 					MDIO_MMD_PMAPMD, &sfp_data);
1028 
1029 		*eeprom_data = (u8)(sfp_data >> 8);
1030 	} else {
1031 		status = IXGBE_ERR_PHY;
1032 	}
1033 
1034 out:
1035 	hw->mac.ops.release_swfw_sync(hw, gssr);
1036 	return status;
1037 }
1038 
1039 /**
1040  *  ixgbe_read_i2c_eeprom_82598 - Reads 8 bit word over I2C interface.
1041  *  @hw: pointer to hardware structure
1042  *  @byte_offset: EEPROM byte offset to read
1043  *  @eeprom_data: value read
1044  *
1045  *  Performs 8 byte read operation to SFP module's EEPROM over I2C interface.
1046  **/
1047 static s32 ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
1048 				       u8 *eeprom_data)
1049 {
1050 	return ixgbe_read_i2c_phy_82598(hw, IXGBE_I2C_EEPROM_DEV_ADDR,
1051 					byte_offset, eeprom_data);
1052 }
1053 
1054 /**
1055  *  ixgbe_read_i2c_sff8472_82598 - Reads 8 bit word over I2C interface.
1056  *  @hw: pointer to hardware structure
1057  *  @byte_offset: byte offset at address 0xA2
1058  *  @sff8472_data: value read
1059  *
1060  *  Performs 8 byte read operation to SFP module's SFF-8472 data over I2C
1061  **/
1062 static s32 ixgbe_read_i2c_sff8472_82598(struct ixgbe_hw *hw, u8 byte_offset,
1063 				       u8 *sff8472_data)
1064 {
1065 	return ixgbe_read_i2c_phy_82598(hw, IXGBE_I2C_EEPROM_DEV_ADDR2,
1066 					byte_offset, sff8472_data);
1067 }
1068 
1069 /**
1070  *  ixgbe_set_lan_id_multi_port_pcie_82598 - Set LAN id for PCIe multiple
1071  *  port devices.
1072  *  @hw: pointer to the HW structure
1073  *
1074  *  Calls common function and corrects issue with some single port devices
1075  *  that enable LAN1 but not LAN0.
1076  **/
1077 static void ixgbe_set_lan_id_multi_port_pcie_82598(struct ixgbe_hw *hw)
1078 {
1079 	struct ixgbe_bus_info *bus = &hw->bus;
1080 	u16 pci_gen = 0;
1081 	u16 pci_ctrl2 = 0;
1082 
1083 	ixgbe_set_lan_id_multi_port_pcie(hw);
1084 
1085 	/* check if LAN0 is disabled */
1086 	hw->eeprom.ops.read(hw, IXGBE_PCIE_GENERAL_PTR, &pci_gen);
1087 	if ((pci_gen != 0) && (pci_gen != 0xFFFF)) {
1088 
1089 		hw->eeprom.ops.read(hw, pci_gen + IXGBE_PCIE_CTRL2, &pci_ctrl2);
1090 
1091 		/* if LAN0 is completely disabled force function to 0 */
1092 		if ((pci_ctrl2 & IXGBE_PCIE_CTRL2_LAN_DISABLE) &&
1093 		    !(pci_ctrl2 & IXGBE_PCIE_CTRL2_DISABLE_SELECT) &&
1094 		    !(pci_ctrl2 & IXGBE_PCIE_CTRL2_DUMMY_ENABLE)) {
1095 
1096 			bus->func = 0;
1097 		}
1098 	}
1099 }
1100 
1101 /**
1102  * ixgbe_set_rxpba_82598 - Initialize RX packet buffer
1103  * @hw: pointer to hardware structure
1104  * @num_pb: number of packet buffers to allocate
1105  * @headroom: reserve n KB of headroom
1106  * @strategy: packet buffer allocation strategy
1107  **/
1108 static void ixgbe_set_rxpba_82598(struct ixgbe_hw *hw, int num_pb,
1109 				  u32 headroom, int strategy)
1110 {
1111 	u32 rxpktsize = IXGBE_RXPBSIZE_64KB;
1112 	u8  i = 0;
1113 
1114 	if (!num_pb)
1115 		return;
1116 
1117 	/* Setup Rx packet buffer sizes */
1118 	switch (strategy) {
1119 	case PBA_STRATEGY_WEIGHTED:
1120 		/* Setup the first four at 80KB */
1121 		rxpktsize = IXGBE_RXPBSIZE_80KB;
1122 		for (; i < 4; i++)
1123 			IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
1124 		/* Setup the last four at 48KB...don't re-init i */
1125 		rxpktsize = IXGBE_RXPBSIZE_48KB;
1126 		/* Fall Through */
1127 	case PBA_STRATEGY_EQUAL:
1128 	default:
1129 		/* Divide the remaining Rx packet buffer evenly among the TCs */
1130 		for (; i < IXGBE_MAX_PACKET_BUFFERS; i++)
1131 			IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
1132 		break;
1133 	}
1134 
1135 	/* Setup Tx packet buffer sizes */
1136 	for (i = 0; i < IXGBE_MAX_PACKET_BUFFERS; i++)
1137 		IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i), IXGBE_TXPBSIZE_40KB);
1138 }
1139 
1140 static const struct ixgbe_mac_operations mac_ops_82598 = {
1141 	.init_hw		= &ixgbe_init_hw_generic,
1142 	.reset_hw		= &ixgbe_reset_hw_82598,
1143 	.start_hw		= &ixgbe_start_hw_82598,
1144 	.clear_hw_cntrs		= &ixgbe_clear_hw_cntrs_generic,
1145 	.get_media_type		= &ixgbe_get_media_type_82598,
1146 	.enable_rx_dma          = &ixgbe_enable_rx_dma_generic,
1147 	.get_mac_addr		= &ixgbe_get_mac_addr_generic,
1148 	.stop_adapter		= &ixgbe_stop_adapter_generic,
1149 	.get_bus_info           = &ixgbe_get_bus_info_generic,
1150 	.set_lan_id             = &ixgbe_set_lan_id_multi_port_pcie_82598,
1151 	.read_analog_reg8	= &ixgbe_read_analog_reg8_82598,
1152 	.write_analog_reg8	= &ixgbe_write_analog_reg8_82598,
1153 	.setup_link		= &ixgbe_setup_mac_link_82598,
1154 	.set_rxpba		= &ixgbe_set_rxpba_82598,
1155 	.check_link		= &ixgbe_check_mac_link_82598,
1156 	.get_link_capabilities	= &ixgbe_get_link_capabilities_82598,
1157 	.led_on			= &ixgbe_led_on_generic,
1158 	.led_off		= &ixgbe_led_off_generic,
1159 	.init_led_link_act	= ixgbe_init_led_link_act_generic,
1160 	.blink_led_start	= &ixgbe_blink_led_start_generic,
1161 	.blink_led_stop		= &ixgbe_blink_led_stop_generic,
1162 	.set_rar		= &ixgbe_set_rar_generic,
1163 	.clear_rar		= &ixgbe_clear_rar_generic,
1164 	.set_vmdq		= &ixgbe_set_vmdq_82598,
1165 	.clear_vmdq		= &ixgbe_clear_vmdq_82598,
1166 	.init_rx_addrs		= &ixgbe_init_rx_addrs_generic,
1167 	.update_mc_addr_list	= &ixgbe_update_mc_addr_list_generic,
1168 	.enable_mc		= &ixgbe_enable_mc_generic,
1169 	.disable_mc		= &ixgbe_disable_mc_generic,
1170 	.clear_vfta		= &ixgbe_clear_vfta_82598,
1171 	.set_vfta		= &ixgbe_set_vfta_82598,
1172 	.fc_enable		= &ixgbe_fc_enable_82598,
1173 	.setup_fc		= ixgbe_setup_fc_generic,
1174 	.fc_autoneg		= ixgbe_fc_autoneg,
1175 	.set_fw_drv_ver         = NULL,
1176 	.acquire_swfw_sync      = &ixgbe_acquire_swfw_sync,
1177 	.release_swfw_sync      = &ixgbe_release_swfw_sync,
1178 	.init_swfw_sync		= NULL,
1179 	.get_thermal_sensor_data = NULL,
1180 	.init_thermal_sensor_thresh = NULL,
1181 	.prot_autoc_read	= &prot_autoc_read_generic,
1182 	.prot_autoc_write	= &prot_autoc_write_generic,
1183 	.enable_rx		= &ixgbe_enable_rx_generic,
1184 	.disable_rx		= &ixgbe_disable_rx_generic,
1185 };
1186 
1187 static const struct ixgbe_eeprom_operations eeprom_ops_82598 = {
1188 	.init_params		= &ixgbe_init_eeprom_params_generic,
1189 	.read			= &ixgbe_read_eerd_generic,
1190 	.write			= &ixgbe_write_eeprom_generic,
1191 	.write_buffer		= &ixgbe_write_eeprom_buffer_bit_bang_generic,
1192 	.read_buffer		= &ixgbe_read_eerd_buffer_generic,
1193 	.calc_checksum          = &ixgbe_calc_eeprom_checksum_generic,
1194 	.validate_checksum	= &ixgbe_validate_eeprom_checksum_generic,
1195 	.update_checksum	= &ixgbe_update_eeprom_checksum_generic,
1196 };
1197 
1198 static const struct ixgbe_phy_operations phy_ops_82598 = {
1199 	.identify		= &ixgbe_identify_phy_generic,
1200 	.identify_sfp		= &ixgbe_identify_module_generic,
1201 	.init			= &ixgbe_init_phy_ops_82598,
1202 	.reset			= &ixgbe_reset_phy_generic,
1203 	.read_reg		= &ixgbe_read_phy_reg_generic,
1204 	.write_reg		= &ixgbe_write_phy_reg_generic,
1205 	.read_reg_mdi		= &ixgbe_read_phy_reg_mdi,
1206 	.write_reg_mdi		= &ixgbe_write_phy_reg_mdi,
1207 	.setup_link		= &ixgbe_setup_phy_link_generic,
1208 	.setup_link_speed	= &ixgbe_setup_phy_link_speed_generic,
1209 	.read_i2c_sff8472	= &ixgbe_read_i2c_sff8472_82598,
1210 	.read_i2c_eeprom	= &ixgbe_read_i2c_eeprom_82598,
1211 	.check_overtemp		= &ixgbe_tn_check_overtemp,
1212 };
1213 
1214 const struct ixgbe_info ixgbe_82598_info = {
1215 	.mac			= ixgbe_mac_82598EB,
1216 	.get_invariants		= &ixgbe_get_invariants_82598,
1217 	.mac_ops		= &mac_ops_82598,
1218 	.eeprom_ops		= &eeprom_ops_82598,
1219 	.phy_ops		= &phy_ops_82598,
1220 	.mvals			= ixgbe_mvals_8259X,
1221 };
1222