1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 1999 - 2018 Intel Corporation. */
3 
4 #include <linux/pci.h>
5 #include <linux/delay.h>
6 #include <linux/sched.h>
7 
8 #include "ixgbe.h"
9 #include "ixgbe_phy.h"
10 
11 #define IXGBE_82598_MAX_TX_QUEUES 32
12 #define IXGBE_82598_MAX_RX_QUEUES 64
13 #define IXGBE_82598_RAR_ENTRIES   16
14 #define IXGBE_82598_MC_TBL_SIZE  128
15 #define IXGBE_82598_VFT_TBL_SIZE 128
16 #define IXGBE_82598_RX_PB_SIZE	 512
17 
18 static s32 ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw,
19 					 ixgbe_link_speed speed,
20 					 bool autoneg_wait_to_complete);
21 static s32 ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
22 				       u8 *eeprom_data);
23 
24 /**
25  *  ixgbe_set_pcie_completion_timeout - set pci-e completion timeout
26  *  @hw: pointer to the HW structure
27  *
28  *  The defaults for 82598 should be in the range of 50us to 50ms,
29  *  however the hardware default for these parts is 500us to 1ms which is less
30  *  than the 10ms recommended by the pci-e spec.  To address this we need to
31  *  increase the value to either 10ms to 250ms for capability version 1 config,
32  *  or 16ms to 55ms for version 2.
33  **/
ixgbe_set_pcie_completion_timeout(struct ixgbe_hw * hw)34 static void ixgbe_set_pcie_completion_timeout(struct ixgbe_hw *hw)
35 {
36 	u32 gcr = IXGBE_READ_REG(hw, IXGBE_GCR);
37 	u16 pcie_devctl2;
38 
39 	if (ixgbe_removed(hw->hw_addr))
40 		return;
41 
42 	/* only take action if timeout value is defaulted to 0 */
43 	if (gcr & IXGBE_GCR_CMPL_TMOUT_MASK)
44 		goto out;
45 
46 	/*
47 	 * if capababilities version is type 1 we can write the
48 	 * timeout of 10ms to 250ms through the GCR register
49 	 */
50 	if (!(gcr & IXGBE_GCR_CAP_VER2)) {
51 		gcr |= IXGBE_GCR_CMPL_TMOUT_10ms;
52 		goto out;
53 	}
54 
55 	/*
56 	 * for version 2 capabilities we need to write the config space
57 	 * directly in order to set the completion timeout value for
58 	 * 16ms to 55ms
59 	 */
60 	pcie_devctl2 = ixgbe_read_pci_cfg_word(hw, IXGBE_PCI_DEVICE_CONTROL2);
61 	pcie_devctl2 |= IXGBE_PCI_DEVICE_CONTROL2_16ms;
62 	ixgbe_write_pci_cfg_word(hw, IXGBE_PCI_DEVICE_CONTROL2, pcie_devctl2);
63 out:
64 	/* disable completion timeout resend */
65 	gcr &= ~IXGBE_GCR_CMPL_TMOUT_RESEND;
66 	IXGBE_WRITE_REG(hw, IXGBE_GCR, gcr);
67 }
68 
ixgbe_get_invariants_82598(struct ixgbe_hw * hw)69 static s32 ixgbe_get_invariants_82598(struct ixgbe_hw *hw)
70 {
71 	struct ixgbe_mac_info *mac = &hw->mac;
72 
73 	/* Call PHY identify routine to get the phy type */
74 	ixgbe_identify_phy_generic(hw);
75 
76 	mac->mcft_size = IXGBE_82598_MC_TBL_SIZE;
77 	mac->vft_size = IXGBE_82598_VFT_TBL_SIZE;
78 	mac->num_rar_entries = IXGBE_82598_RAR_ENTRIES;
79 	mac->rx_pb_size = IXGBE_82598_RX_PB_SIZE;
80 	mac->max_rx_queues = IXGBE_82598_MAX_RX_QUEUES;
81 	mac->max_tx_queues = IXGBE_82598_MAX_TX_QUEUES;
82 	mac->max_msix_vectors = ixgbe_get_pcie_msix_count_generic(hw);
83 
84 	return 0;
85 }
86 
87 /**
88  *  ixgbe_init_phy_ops_82598 - PHY/SFP specific init
89  *  @hw: pointer to hardware structure
90  *
91  *  Initialize any function pointers that were not able to be
92  *  set during get_invariants because the PHY/SFP type was
93  *  not known.  Perform the SFP init if necessary.
94  *
95  **/
ixgbe_init_phy_ops_82598(struct ixgbe_hw * hw)96 static s32 ixgbe_init_phy_ops_82598(struct ixgbe_hw *hw)
97 {
98 	struct ixgbe_mac_info *mac = &hw->mac;
99 	struct ixgbe_phy_info *phy = &hw->phy;
100 	s32 ret_val;
101 	u16 list_offset, data_offset;
102 
103 	/* Identify the PHY */
104 	phy->ops.identify(hw);
105 
106 	/* Overwrite the link function pointers if copper PHY */
107 	if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper) {
108 		mac->ops.setup_link = &ixgbe_setup_copper_link_82598;
109 		mac->ops.get_link_capabilities =
110 			&ixgbe_get_copper_link_capabilities_generic;
111 	}
112 
113 	switch (hw->phy.type) {
114 	case ixgbe_phy_tn:
115 		phy->ops.setup_link = &ixgbe_setup_phy_link_tnx;
116 		phy->ops.check_link = &ixgbe_check_phy_link_tnx;
117 		break;
118 	case ixgbe_phy_nl:
119 		phy->ops.reset = &ixgbe_reset_phy_nl;
120 
121 		/* Call SFP+ identify routine to get the SFP+ module type */
122 		ret_val = phy->ops.identify_sfp(hw);
123 		if (ret_val)
124 			return ret_val;
125 		if (hw->phy.sfp_type == ixgbe_sfp_type_unknown)
126 			return -EOPNOTSUPP;
127 
128 		/* Check to see if SFP+ module is supported */
129 		ret_val = ixgbe_get_sfp_init_sequence_offsets(hw,
130 							    &list_offset,
131 							    &data_offset);
132 		if (ret_val)
133 			return -EOPNOTSUPP;
134 		break;
135 	default:
136 		break;
137 	}
138 
139 	return 0;
140 }
141 
142 /**
143  *  ixgbe_start_hw_82598 - Prepare hardware for Tx/Rx
144  *  @hw: pointer to hardware structure
145  *
146  *  Starts the hardware using the generic start_hw function.
147  *  Disables relaxed ordering for archs other than SPARC
148  *  Then set pcie completion timeout
149  *
150  **/
ixgbe_start_hw_82598(struct ixgbe_hw * hw)151 static s32 ixgbe_start_hw_82598(struct ixgbe_hw *hw)
152 {
153 	s32 ret_val;
154 
155 	ret_val = ixgbe_start_hw_generic(hw);
156 	if (ret_val)
157 		return ret_val;
158 
159 	/* set the completion timeout for interface */
160 	ixgbe_set_pcie_completion_timeout(hw);
161 
162 	return 0;
163 }
164 
165 /**
166  *  ixgbe_get_link_capabilities_82598 - Determines link capabilities
167  *  @hw: pointer to hardware structure
168  *  @speed: pointer to link speed
169  *  @autoneg: boolean auto-negotiation value
170  *
171  *  Determines the link capabilities by reading the AUTOC register.
172  **/
ixgbe_get_link_capabilities_82598(struct ixgbe_hw * hw,ixgbe_link_speed * speed,bool * autoneg)173 static s32 ixgbe_get_link_capabilities_82598(struct ixgbe_hw *hw,
174 					     ixgbe_link_speed *speed,
175 					     bool *autoneg)
176 {
177 	u32 autoc = 0;
178 
179 	/*
180 	 * Determine link capabilities based on the stored value of AUTOC,
181 	 * which represents EEPROM defaults.  If AUTOC value has not been
182 	 * stored, use the current register value.
183 	 */
184 	if (hw->mac.orig_link_settings_stored)
185 		autoc = hw->mac.orig_autoc;
186 	else
187 		autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
188 
189 	switch (autoc & IXGBE_AUTOC_LMS_MASK) {
190 	case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
191 		*speed = IXGBE_LINK_SPEED_1GB_FULL;
192 		*autoneg = false;
193 		break;
194 
195 	case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
196 		*speed = IXGBE_LINK_SPEED_10GB_FULL;
197 		*autoneg = false;
198 		break;
199 
200 	case IXGBE_AUTOC_LMS_1G_AN:
201 		*speed = IXGBE_LINK_SPEED_1GB_FULL;
202 		*autoneg = true;
203 		break;
204 
205 	case IXGBE_AUTOC_LMS_KX4_AN:
206 	case IXGBE_AUTOC_LMS_KX4_AN_1G_AN:
207 		*speed = IXGBE_LINK_SPEED_UNKNOWN;
208 		if (autoc & IXGBE_AUTOC_KX4_SUPP)
209 			*speed |= IXGBE_LINK_SPEED_10GB_FULL;
210 		if (autoc & IXGBE_AUTOC_KX_SUPP)
211 			*speed |= IXGBE_LINK_SPEED_1GB_FULL;
212 		*autoneg = true;
213 		break;
214 
215 	default:
216 		return -EIO;
217 	}
218 
219 	return 0;
220 }
221 
222 /**
223  *  ixgbe_get_media_type_82598 - Determines media type
224  *  @hw: pointer to hardware structure
225  *
226  *  Returns the media type (fiber, copper, backplane)
227  **/
ixgbe_get_media_type_82598(struct ixgbe_hw * hw)228 static enum ixgbe_media_type ixgbe_get_media_type_82598(struct ixgbe_hw *hw)
229 {
230 	/* Detect if there is a copper PHY attached. */
231 	switch (hw->phy.type) {
232 	case ixgbe_phy_cu_unknown:
233 	case ixgbe_phy_tn:
234 		return ixgbe_media_type_copper;
235 
236 	default:
237 		break;
238 	}
239 
240 	/* Media type for I82598 is based on device ID */
241 	switch (hw->device_id) {
242 	case IXGBE_DEV_ID_82598:
243 	case IXGBE_DEV_ID_82598_BX:
244 		/* Default device ID is mezzanine card KX/KX4 */
245 		return ixgbe_media_type_backplane;
246 
247 	case IXGBE_DEV_ID_82598AF_DUAL_PORT:
248 	case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
249 	case IXGBE_DEV_ID_82598_DA_DUAL_PORT:
250 	case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM:
251 	case IXGBE_DEV_ID_82598EB_XF_LR:
252 	case IXGBE_DEV_ID_82598EB_SFP_LOM:
253 		return ixgbe_media_type_fiber;
254 
255 	case IXGBE_DEV_ID_82598EB_CX4:
256 	case IXGBE_DEV_ID_82598_CX4_DUAL_PORT:
257 		return ixgbe_media_type_cx4;
258 
259 	case IXGBE_DEV_ID_82598AT:
260 	case IXGBE_DEV_ID_82598AT2:
261 		return ixgbe_media_type_copper;
262 
263 	default:
264 		return ixgbe_media_type_unknown;
265 	}
266 }
267 
268 /**
269  *  ixgbe_fc_enable_82598 - Enable flow control
270  *  @hw: pointer to hardware structure
271  *
272  *  Enable flow control according to the current settings.
273  **/
ixgbe_fc_enable_82598(struct ixgbe_hw * hw)274 static s32 ixgbe_fc_enable_82598(struct ixgbe_hw *hw)
275 {
276 	u32 fctrl_reg;
277 	u32 rmcs_reg;
278 	u32 reg;
279 	u32 fcrtl, fcrth;
280 	u32 link_speed = 0;
281 	int i;
282 	bool link_up;
283 
284 	/* Validate the water mark configuration */
285 	if (!hw->fc.pause_time)
286 		return -EINVAL;
287 
288 	/* Low water mark of zero causes XOFF floods */
289 	for (i = 0; i < MAX_TRAFFIC_CLASS; i++) {
290 		if ((hw->fc.current_mode & ixgbe_fc_tx_pause) &&
291 		    hw->fc.high_water[i]) {
292 			if (!hw->fc.low_water[i] ||
293 			    hw->fc.low_water[i] >= hw->fc.high_water[i]) {
294 				hw_dbg(hw, "Invalid water mark configuration\n");
295 				return -EINVAL;
296 			}
297 		}
298 	}
299 
300 	/*
301 	 * On 82598 having Rx FC on causes resets while doing 1G
302 	 * so if it's on turn it off once we know link_speed. For
303 	 * more details see 82598 Specification update.
304 	 */
305 	hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
306 	if (link_up && link_speed == IXGBE_LINK_SPEED_1GB_FULL) {
307 		switch (hw->fc.requested_mode) {
308 		case ixgbe_fc_full:
309 			hw->fc.requested_mode = ixgbe_fc_tx_pause;
310 			break;
311 		case ixgbe_fc_rx_pause:
312 			hw->fc.requested_mode = ixgbe_fc_none;
313 			break;
314 		default:
315 			/* no change */
316 			break;
317 		}
318 	}
319 
320 	/* Negotiate the fc mode to use */
321 	hw->mac.ops.fc_autoneg(hw);
322 
323 	/* Disable any previous flow control settings */
324 	fctrl_reg = IXGBE_READ_REG(hw, IXGBE_FCTRL);
325 	fctrl_reg &= ~(IXGBE_FCTRL_RFCE | IXGBE_FCTRL_RPFCE);
326 
327 	rmcs_reg = IXGBE_READ_REG(hw, IXGBE_RMCS);
328 	rmcs_reg &= ~(IXGBE_RMCS_TFCE_PRIORITY | IXGBE_RMCS_TFCE_802_3X);
329 
330 	/*
331 	 * The possible values of fc.current_mode are:
332 	 * 0: Flow control is completely disabled
333 	 * 1: Rx flow control is enabled (we can receive pause frames,
334 	 *    but not send pause frames).
335 	 * 2: Tx flow control is enabled (we can send pause frames but
336 	 *     we do not support receiving pause frames).
337 	 * 3: Both Rx and Tx flow control (symmetric) are enabled.
338 	 * other: Invalid.
339 	 */
340 	switch (hw->fc.current_mode) {
341 	case ixgbe_fc_none:
342 		/*
343 		 * Flow control is disabled by software override or autoneg.
344 		 * The code below will actually disable it in the HW.
345 		 */
346 		break;
347 	case ixgbe_fc_rx_pause:
348 		/*
349 		 * Rx Flow control is enabled and Tx Flow control is
350 		 * disabled by software override. Since there really
351 		 * isn't a way to advertise that we are capable of RX
352 		 * Pause ONLY, we will advertise that we support both
353 		 * symmetric and asymmetric Rx PAUSE.  Later, we will
354 		 * disable the adapter's ability to send PAUSE frames.
355 		 */
356 		fctrl_reg |= IXGBE_FCTRL_RFCE;
357 		break;
358 	case ixgbe_fc_tx_pause:
359 		/*
360 		 * Tx Flow control is enabled, and Rx Flow control is
361 		 * disabled by software override.
362 		 */
363 		rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
364 		break;
365 	case ixgbe_fc_full:
366 		/* Flow control (both Rx and Tx) is enabled by SW override. */
367 		fctrl_reg |= IXGBE_FCTRL_RFCE;
368 		rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
369 		break;
370 	default:
371 		hw_dbg(hw, "Flow control param set incorrectly\n");
372 		return -EIO;
373 	}
374 
375 	/* Set 802.3x based flow control settings. */
376 	fctrl_reg |= IXGBE_FCTRL_DPF;
377 	IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl_reg);
378 	IXGBE_WRITE_REG(hw, IXGBE_RMCS, rmcs_reg);
379 
380 	/* Set up and enable Rx high/low water mark thresholds, enable XON. */
381 	for (i = 0; i < MAX_TRAFFIC_CLASS; i++) {
382 		if ((hw->fc.current_mode & ixgbe_fc_tx_pause) &&
383 		    hw->fc.high_water[i]) {
384 			fcrtl = (hw->fc.low_water[i] << 10) | IXGBE_FCRTL_XONE;
385 			fcrth = (hw->fc.high_water[i] << 10) | IXGBE_FCRTH_FCEN;
386 			IXGBE_WRITE_REG(hw, IXGBE_FCRTL(i), fcrtl);
387 			IXGBE_WRITE_REG(hw, IXGBE_FCRTH(i), fcrth);
388 		} else {
389 			IXGBE_WRITE_REG(hw, IXGBE_FCRTL(i), 0);
390 			IXGBE_WRITE_REG(hw, IXGBE_FCRTH(i), 0);
391 		}
392 
393 	}
394 
395 	/* Configure pause time (2 TCs per register) */
396 	reg = hw->fc.pause_time * 0x00010001;
397 	for (i = 0; i < (MAX_TRAFFIC_CLASS / 2); i++)
398 		IXGBE_WRITE_REG(hw, IXGBE_FCTTV(i), reg);
399 
400 	/* Configure flow control refresh threshold value */
401 	IXGBE_WRITE_REG(hw, IXGBE_FCRTV, hw->fc.pause_time / 2);
402 
403 	return 0;
404 }
405 
406 /**
407  *  ixgbe_start_mac_link_82598 - Configures MAC link settings
408  *  @hw: pointer to hardware structure
409  *  @autoneg_wait_to_complete: true when waiting for completion is needed
410  *
411  *  Configures link settings based on values in the ixgbe_hw struct.
412  *  Restarts the link.  Performs autonegotiation if needed.
413  **/
ixgbe_start_mac_link_82598(struct ixgbe_hw * hw,bool autoneg_wait_to_complete)414 static s32 ixgbe_start_mac_link_82598(struct ixgbe_hw *hw,
415 				      bool autoneg_wait_to_complete)
416 {
417 	u32 autoc_reg;
418 	u32 links_reg;
419 	u32 i;
420 	s32 status = 0;
421 
422 	/* Restart link */
423 	autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
424 	autoc_reg |= IXGBE_AUTOC_AN_RESTART;
425 	IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
426 
427 	/* Only poll for autoneg to complete if specified to do so */
428 	if (autoneg_wait_to_complete) {
429 		if ((autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
430 		     IXGBE_AUTOC_LMS_KX4_AN ||
431 		    (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
432 		     IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
433 			links_reg = 0; /* Just in case Autoneg time = 0 */
434 			for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
435 				links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
436 				if (links_reg & IXGBE_LINKS_KX_AN_COMP)
437 					break;
438 				msleep(100);
439 			}
440 			if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
441 				status = -EIO;
442 				hw_dbg(hw, "Autonegotiation did not complete.\n");
443 			}
444 		}
445 	}
446 
447 	/* Add delay to filter out noises during initial link setup */
448 	msleep(50);
449 
450 	return status;
451 }
452 
453 /**
454  *  ixgbe_validate_link_ready - Function looks for phy link
455  *  @hw: pointer to hardware structure
456  *
457  *  Function indicates success when phy link is available. If phy is not ready
458  *  within 5 seconds of MAC indicating link, the function returns error.
459  **/
ixgbe_validate_link_ready(struct ixgbe_hw * hw)460 static s32 ixgbe_validate_link_ready(struct ixgbe_hw *hw)
461 {
462 	u32 timeout;
463 	u16 an_reg;
464 
465 	if (hw->device_id != IXGBE_DEV_ID_82598AT2)
466 		return 0;
467 
468 	for (timeout = 0;
469 	     timeout < IXGBE_VALIDATE_LINK_READY_TIMEOUT; timeout++) {
470 		hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN, &an_reg);
471 
472 		if ((an_reg & MDIO_AN_STAT1_COMPLETE) &&
473 		    (an_reg & MDIO_STAT1_LSTATUS))
474 			break;
475 
476 		msleep(100);
477 	}
478 
479 	if (timeout == IXGBE_VALIDATE_LINK_READY_TIMEOUT) {
480 		hw_dbg(hw, "Link was indicated but link is down\n");
481 		return -EIO;
482 	}
483 
484 	return 0;
485 }
486 
487 /**
488  *  ixgbe_check_mac_link_82598 - Get link/speed status
489  *  @hw: pointer to hardware structure
490  *  @speed: pointer to link speed
491  *  @link_up: true is link is up, false otherwise
492  *  @link_up_wait_to_complete: bool used to wait for link up or not
493  *
494  *  Reads the links register to determine if link is up and the current speed
495  **/
ixgbe_check_mac_link_82598(struct ixgbe_hw * hw,ixgbe_link_speed * speed,bool * link_up,bool link_up_wait_to_complete)496 static s32 ixgbe_check_mac_link_82598(struct ixgbe_hw *hw,
497 				      ixgbe_link_speed *speed, bool *link_up,
498 				      bool link_up_wait_to_complete)
499 {
500 	u32 links_reg;
501 	u32 i;
502 	u16 link_reg, adapt_comp_reg;
503 
504 	/*
505 	 * SERDES PHY requires us to read link status from register 0xC79F.
506 	 * Bit 0 set indicates link is up/ready; clear indicates link down.
507 	 * 0xC00C is read to check that the XAUI lanes are active.  Bit 0
508 	 * clear indicates active; set indicates inactive.
509 	 */
510 	if (hw->phy.type == ixgbe_phy_nl) {
511 		hw->phy.ops.read_reg(hw, 0xC79F, MDIO_MMD_PMAPMD, &link_reg);
512 		hw->phy.ops.read_reg(hw, 0xC79F, MDIO_MMD_PMAPMD, &link_reg);
513 		hw->phy.ops.read_reg(hw, 0xC00C, MDIO_MMD_PMAPMD,
514 				     &adapt_comp_reg);
515 		if (link_up_wait_to_complete) {
516 			for (i = 0; i < IXGBE_LINK_UP_TIME; i++) {
517 				if ((link_reg & 1) &&
518 				    ((adapt_comp_reg & 1) == 0)) {
519 					*link_up = true;
520 					break;
521 				} else {
522 					*link_up = false;
523 				}
524 				msleep(100);
525 				hw->phy.ops.read_reg(hw, 0xC79F,
526 						     MDIO_MMD_PMAPMD,
527 						     &link_reg);
528 				hw->phy.ops.read_reg(hw, 0xC00C,
529 						     MDIO_MMD_PMAPMD,
530 						     &adapt_comp_reg);
531 			}
532 		} else {
533 			if ((link_reg & 1) && ((adapt_comp_reg & 1) == 0))
534 				*link_up = true;
535 			else
536 				*link_up = false;
537 		}
538 
539 		if (!*link_up)
540 			return 0;
541 	}
542 
543 	links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
544 	if (link_up_wait_to_complete) {
545 		for (i = 0; i < IXGBE_LINK_UP_TIME; i++) {
546 			if (links_reg & IXGBE_LINKS_UP) {
547 				*link_up = true;
548 				break;
549 			} else {
550 				*link_up = false;
551 			}
552 			msleep(100);
553 			links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
554 		}
555 	} else {
556 		if (links_reg & IXGBE_LINKS_UP)
557 			*link_up = true;
558 		else
559 			*link_up = false;
560 	}
561 
562 	if (links_reg & IXGBE_LINKS_SPEED)
563 		*speed = IXGBE_LINK_SPEED_10GB_FULL;
564 	else
565 		*speed = IXGBE_LINK_SPEED_1GB_FULL;
566 
567 	if ((hw->device_id == IXGBE_DEV_ID_82598AT2) && *link_up &&
568 	    (ixgbe_validate_link_ready(hw) != 0))
569 		*link_up = false;
570 
571 	return 0;
572 }
573 
574 /**
575  *  ixgbe_setup_mac_link_82598 - Set MAC link speed
576  *  @hw: pointer to hardware structure
577  *  @speed: new link speed
578  *  @autoneg_wait_to_complete: true when waiting for completion is needed
579  *
580  *  Set the link speed in the AUTOC register and restarts link.
581  **/
ixgbe_setup_mac_link_82598(struct ixgbe_hw * hw,ixgbe_link_speed speed,bool autoneg_wait_to_complete)582 static s32 ixgbe_setup_mac_link_82598(struct ixgbe_hw *hw,
583 				      ixgbe_link_speed speed,
584 				      bool autoneg_wait_to_complete)
585 {
586 	bool		 autoneg	   = false;
587 	ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN;
588 	u32              curr_autoc        = IXGBE_READ_REG(hw, IXGBE_AUTOC);
589 	u32              autoc             = curr_autoc;
590 	u32              link_mode         = autoc & IXGBE_AUTOC_LMS_MASK;
591 
592 	/* Check to see if speed passed in is supported. */
593 	ixgbe_get_link_capabilities_82598(hw, &link_capabilities, &autoneg);
594 	speed &= link_capabilities;
595 
596 	if (speed == IXGBE_LINK_SPEED_UNKNOWN)
597 		return -EINVAL;
598 
599 	/* Set KX4/KX support according to speed requested */
600 	else if (link_mode == IXGBE_AUTOC_LMS_KX4_AN ||
601 		 link_mode == IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
602 		autoc &= ~IXGBE_AUTOC_KX4_KX_SUPP_MASK;
603 		if (speed & IXGBE_LINK_SPEED_10GB_FULL)
604 			autoc |= IXGBE_AUTOC_KX4_SUPP;
605 		if (speed & IXGBE_LINK_SPEED_1GB_FULL)
606 			autoc |= IXGBE_AUTOC_KX_SUPP;
607 		if (autoc != curr_autoc)
608 			IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc);
609 	}
610 
611 	/* Setup and restart the link based on the new values in
612 	 * ixgbe_hw This will write the AUTOC register based on the new
613 	 * stored values
614 	 */
615 	return ixgbe_start_mac_link_82598(hw, autoneg_wait_to_complete);
616 }
617 
618 
619 /**
620  *  ixgbe_setup_copper_link_82598 - Set the PHY autoneg advertised field
621  *  @hw: pointer to hardware structure
622  *  @speed: new link speed
623  *  @autoneg_wait_to_complete: true if waiting is needed to complete
624  *
625  *  Sets the link speed in the AUTOC register in the MAC and restarts link.
626  **/
ixgbe_setup_copper_link_82598(struct ixgbe_hw * hw,ixgbe_link_speed speed,bool autoneg_wait_to_complete)627 static s32 ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw,
628 					       ixgbe_link_speed speed,
629 					       bool autoneg_wait_to_complete)
630 {
631 	s32 status;
632 
633 	/* Setup the PHY according to input speed */
634 	status = hw->phy.ops.setup_link_speed(hw, speed,
635 					      autoneg_wait_to_complete);
636 	/* Set up MAC */
637 	ixgbe_start_mac_link_82598(hw, autoneg_wait_to_complete);
638 
639 	return status;
640 }
641 
642 /**
643  *  ixgbe_reset_hw_82598 - Performs hardware reset
644  *  @hw: pointer to hardware structure
645  *
646  *  Resets the hardware by resetting the transmit and receive units, masks and
647  *  clears all interrupts, performing a PHY reset, and performing a link (MAC)
648  *  reset.
649  **/
ixgbe_reset_hw_82598(struct ixgbe_hw * hw)650 static s32 ixgbe_reset_hw_82598(struct ixgbe_hw *hw)
651 {
652 	s32 status;
653 	s32 phy_status = 0;
654 	u32 ctrl;
655 	u32 gheccr;
656 	u32 i;
657 	u32 autoc;
658 	u8  analog_val;
659 
660 	/* Call adapter stop to disable tx/rx and clear interrupts */
661 	status = hw->mac.ops.stop_adapter(hw);
662 	if (status)
663 		return status;
664 
665 	/*
666 	 * Power up the Atlas Tx lanes if they are currently powered down.
667 	 * Atlas Tx lanes are powered down for MAC loopback tests, but
668 	 * they are not automatically restored on reset.
669 	 */
670 	hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK, &analog_val);
671 	if (analog_val & IXGBE_ATLAS_PDN_TX_REG_EN) {
672 		/* Enable Tx Atlas so packets can be transmitted again */
673 		hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
674 					     &analog_val);
675 		analog_val &= ~IXGBE_ATLAS_PDN_TX_REG_EN;
676 		hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
677 					      analog_val);
678 
679 		hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
680 					     &analog_val);
681 		analog_val &= ~IXGBE_ATLAS_PDN_TX_10G_QL_ALL;
682 		hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
683 					      analog_val);
684 
685 		hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
686 					     &analog_val);
687 		analog_val &= ~IXGBE_ATLAS_PDN_TX_1G_QL_ALL;
688 		hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
689 					      analog_val);
690 
691 		hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
692 					     &analog_val);
693 		analog_val &= ~IXGBE_ATLAS_PDN_TX_AN_QL_ALL;
694 		hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
695 					      analog_val);
696 	}
697 
698 	/* Reset PHY */
699 	if (hw->phy.reset_disable == false) {
700 		/* PHY ops must be identified and initialized prior to reset */
701 
702 		/* Init PHY and function pointers, perform SFP setup */
703 		phy_status = hw->phy.ops.init(hw);
704 		if (phy_status == -EOPNOTSUPP)
705 			return phy_status;
706 		if (phy_status == -ENOENT)
707 			goto mac_reset_top;
708 
709 		hw->phy.ops.reset(hw);
710 	}
711 
712 mac_reset_top:
713 	/*
714 	 * Issue global reset to the MAC.  This needs to be a SW reset.
715 	 * If link reset is used, it might reset the MAC when mng is using it
716 	 */
717 	ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL) | IXGBE_CTRL_RST;
718 	IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
719 	IXGBE_WRITE_FLUSH(hw);
720 	usleep_range(1000, 1200);
721 
722 	/* Poll for reset bit to self-clear indicating reset is complete */
723 	for (i = 0; i < 10; i++) {
724 		ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
725 		if (!(ctrl & IXGBE_CTRL_RST))
726 			break;
727 		udelay(1);
728 	}
729 	if (ctrl & IXGBE_CTRL_RST) {
730 		status = -EIO;
731 		hw_dbg(hw, "Reset polling failed to complete.\n");
732 	}
733 
734 	msleep(50);
735 
736 	/*
737 	 * Double resets are required for recovery from certain error
738 	 * conditions.  Between resets, it is necessary to stall to allow time
739 	 * for any pending HW events to complete.
740 	 */
741 	if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
742 		hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
743 		goto mac_reset_top;
744 	}
745 
746 	gheccr = IXGBE_READ_REG(hw, IXGBE_GHECCR);
747 	gheccr &= ~(BIT(21) | BIT(18) | BIT(9) | BIT(6));
748 	IXGBE_WRITE_REG(hw, IXGBE_GHECCR, gheccr);
749 
750 	/*
751 	 * Store the original AUTOC value if it has not been
752 	 * stored off yet.  Otherwise restore the stored original
753 	 * AUTOC value since the reset operation sets back to deaults.
754 	 */
755 	autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
756 	if (hw->mac.orig_link_settings_stored == false) {
757 		hw->mac.orig_autoc = autoc;
758 		hw->mac.orig_link_settings_stored = true;
759 	} else if (autoc != hw->mac.orig_autoc) {
760 		IXGBE_WRITE_REG(hw, IXGBE_AUTOC, hw->mac.orig_autoc);
761 	}
762 
763 	/* Store the permanent mac address */
764 	hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
765 
766 	/*
767 	 * Store MAC address from RAR0, clear receive address registers, and
768 	 * clear the multicast table
769 	 */
770 	hw->mac.ops.init_rx_addrs(hw);
771 
772 	if (phy_status)
773 		status = phy_status;
774 
775 	return status;
776 }
777 
778 /**
779  *  ixgbe_set_vmdq_82598 - Associate a VMDq set index with a rx address
780  *  @hw: pointer to hardware struct
781  *  @rar: receive address register index to associate with a VMDq index
782  *  @vmdq: VMDq set index
783  **/
ixgbe_set_vmdq_82598(struct ixgbe_hw * hw,u32 rar,u32 vmdq)784 static s32 ixgbe_set_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
785 {
786 	u32 rar_high;
787 	u32 rar_entries = hw->mac.num_rar_entries;
788 
789 	/* Make sure we are using a valid rar index range */
790 	if (rar >= rar_entries) {
791 		hw_dbg(hw, "RAR index %d is out of range.\n", rar);
792 		return -EINVAL;
793 	}
794 
795 	rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
796 	rar_high &= ~IXGBE_RAH_VIND_MASK;
797 	rar_high |= ((vmdq << IXGBE_RAH_VIND_SHIFT) & IXGBE_RAH_VIND_MASK);
798 	IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
799 	return 0;
800 }
801 
802 /**
803  *  ixgbe_clear_vmdq_82598 - Disassociate a VMDq set index from an rx address
804  *  @hw: pointer to hardware struct
805  *  @rar: receive address register index to associate with a VMDq index
806  *  @vmdq: VMDq clear index (not used in 82598, but elsewhere)
807  **/
ixgbe_clear_vmdq_82598(struct ixgbe_hw * hw,u32 rar,u32 vmdq)808 static s32 ixgbe_clear_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
809 {
810 	u32 rar_high;
811 	u32 rar_entries = hw->mac.num_rar_entries;
812 
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 -EINVAL;
818 	}
819 
820 	rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
821 	if (rar_high & IXGBE_RAH_VIND_MASK) {
822 		rar_high &= ~IXGBE_RAH_VIND_MASK;
823 		IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
824 	}
825 
826 	return 0;
827 }
828 
829 /**
830  *  ixgbe_set_vfta_82598 - Set VLAN filter table
831  *  @hw: pointer to hardware structure
832  *  @vlan: VLAN id to write to VLAN filter
833  *  @vind: VMDq output index that maps queue to VLAN id in VFTA
834  *  @vlan_on: boolean flag to turn on/off VLAN in VFTA
835  *  @vlvf_bypass: boolean flag - unused
836  *
837  *  Turn on/off specified VLAN in the VLAN filter table.
838  **/
ixgbe_set_vfta_82598(struct ixgbe_hw * hw,u32 vlan,u32 vind,bool vlan_on,bool vlvf_bypass)839 static s32 ixgbe_set_vfta_82598(struct ixgbe_hw *hw, u32 vlan, u32 vind,
840 				bool vlan_on, bool vlvf_bypass)
841 {
842 	u32 regindex;
843 	u32 bitindex;
844 	u32 bits;
845 	u32 vftabyte;
846 
847 	if (vlan > 4095)
848 		return -EINVAL;
849 
850 	/* Determine 32-bit word position in array */
851 	regindex = (vlan >> 5) & 0x7F;   /* upper seven bits */
852 
853 	/* Determine the location of the (VMD) queue index */
854 	vftabyte =  ((vlan >> 3) & 0x03); /* bits (4:3) indicating byte array */
855 	bitindex = (vlan & 0x7) << 2;    /* lower 3 bits indicate nibble */
856 
857 	/* Set the nibble for VMD queue index */
858 	bits = IXGBE_READ_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex));
859 	bits &= (~(0x0F << bitindex));
860 	bits |= (vind << bitindex);
861 	IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex), bits);
862 
863 	/* Determine the location of the bit for this VLAN id */
864 	bitindex = vlan & 0x1F;   /* lower five bits */
865 
866 	bits = IXGBE_READ_REG(hw, IXGBE_VFTA(regindex));
867 	if (vlan_on)
868 		/* Turn on this VLAN id */
869 		bits |= BIT(bitindex);
870 	else
871 		/* Turn off this VLAN id */
872 		bits &= ~BIT(bitindex);
873 	IXGBE_WRITE_REG(hw, IXGBE_VFTA(regindex), bits);
874 
875 	return 0;
876 }
877 
878 /**
879  *  ixgbe_clear_vfta_82598 - Clear VLAN filter table
880  *  @hw: pointer to hardware structure
881  *
882  *  Clears the VLAN filter table, and the VMDq index associated with the filter
883  **/
ixgbe_clear_vfta_82598(struct ixgbe_hw * hw)884 static s32 ixgbe_clear_vfta_82598(struct ixgbe_hw *hw)
885 {
886 	u32 offset;
887 	u32 vlanbyte;
888 
889 	for (offset = 0; offset < hw->mac.vft_size; offset++)
890 		IXGBE_WRITE_REG(hw, IXGBE_VFTA(offset), 0);
891 
892 	for (vlanbyte = 0; vlanbyte < 4; vlanbyte++)
893 		for (offset = 0; offset < hw->mac.vft_size; offset++)
894 			IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vlanbyte, offset),
895 					0);
896 
897 	return 0;
898 }
899 
900 /**
901  *  ixgbe_read_analog_reg8_82598 - Reads 8 bit Atlas analog register
902  *  @hw: pointer to hardware structure
903  *  @reg: analog register to read
904  *  @val: read value
905  *
906  *  Performs read operation to Atlas analog register specified.
907  **/
ixgbe_read_analog_reg8_82598(struct ixgbe_hw * hw,u32 reg,u8 * val)908 static s32 ixgbe_read_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 *val)
909 {
910 	u32  atlas_ctl;
911 
912 	IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL,
913 			IXGBE_ATLASCTL_WRITE_CMD | (reg << 8));
914 	IXGBE_WRITE_FLUSH(hw);
915 	udelay(10);
916 	atlas_ctl = IXGBE_READ_REG(hw, IXGBE_ATLASCTL);
917 	*val = (u8)atlas_ctl;
918 
919 	return 0;
920 }
921 
922 /**
923  *  ixgbe_write_analog_reg8_82598 - Writes 8 bit Atlas analog register
924  *  @hw: pointer to hardware structure
925  *  @reg: atlas register to write
926  *  @val: value to write
927  *
928  *  Performs write operation to Atlas analog register specified.
929  **/
ixgbe_write_analog_reg8_82598(struct ixgbe_hw * hw,u32 reg,u8 val)930 static s32 ixgbe_write_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 val)
931 {
932 	u32  atlas_ctl;
933 
934 	atlas_ctl = (reg << 8) | val;
935 	IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL, atlas_ctl);
936 	IXGBE_WRITE_FLUSH(hw);
937 	udelay(10);
938 
939 	return 0;
940 }
941 
942 /**
943  *  ixgbe_read_i2c_phy_82598 - Reads 8 bit word over I2C interface.
944  *  @hw: pointer to hardware structure
945  *  @dev_addr: address to read from
946  *  @byte_offset: byte offset to read from dev_addr
947  *  @eeprom_data: value read
948  *
949  *  Performs 8 byte read operation to SFP module's data over I2C interface.
950  **/
ixgbe_read_i2c_phy_82598(struct ixgbe_hw * hw,u8 dev_addr,u8 byte_offset,u8 * eeprom_data)951 static s32 ixgbe_read_i2c_phy_82598(struct ixgbe_hw *hw, u8 dev_addr,
952 				    u8 byte_offset, u8 *eeprom_data)
953 {
954 	s32 status = 0;
955 	u16 sfp_addr = 0;
956 	u16 sfp_data = 0;
957 	u16 sfp_stat = 0;
958 	u16 gssr;
959 	u32 i;
960 
961 	if (IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_LAN_ID_1)
962 		gssr = IXGBE_GSSR_PHY1_SM;
963 	else
964 		gssr = IXGBE_GSSR_PHY0_SM;
965 
966 	if (hw->mac.ops.acquire_swfw_sync(hw, gssr) != 0)
967 		return -EBUSY;
968 
969 	if (hw->phy.type == ixgbe_phy_nl) {
970 		/*
971 		 * phy SDA/SCL registers are at addresses 0xC30A to
972 		 * 0xC30D.  These registers are used to talk to the SFP+
973 		 * module's EEPROM through the SDA/SCL (I2C) interface.
974 		 */
975 		sfp_addr = (dev_addr << 8) + byte_offset;
976 		sfp_addr = (sfp_addr | IXGBE_I2C_EEPROM_READ_MASK);
977 		hw->phy.ops.write_reg_mdi(hw,
978 					  IXGBE_MDIO_PMA_PMD_SDA_SCL_ADDR,
979 					  MDIO_MMD_PMAPMD,
980 					  sfp_addr);
981 
982 		/* Poll status */
983 		for (i = 0; i < 100; i++) {
984 			hw->phy.ops.read_reg_mdi(hw,
985 						IXGBE_MDIO_PMA_PMD_SDA_SCL_STAT,
986 						MDIO_MMD_PMAPMD,
987 						&sfp_stat);
988 			sfp_stat = sfp_stat & IXGBE_I2C_EEPROM_STATUS_MASK;
989 			if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_IN_PROGRESS)
990 				break;
991 			usleep_range(10000, 20000);
992 		}
993 
994 		if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_PASS) {
995 			hw_dbg(hw, "EEPROM read did not pass.\n");
996 			status = -ENOENT;
997 			goto out;
998 		}
999 
1000 		/* Read data */
1001 		hw->phy.ops.read_reg_mdi(hw, IXGBE_MDIO_PMA_PMD_SDA_SCL_DATA,
1002 					MDIO_MMD_PMAPMD, &sfp_data);
1003 
1004 		*eeprom_data = (u8)(sfp_data >> 8);
1005 	} else {
1006 		status = -EIO;
1007 	}
1008 
1009 out:
1010 	hw->mac.ops.release_swfw_sync(hw, gssr);
1011 	return status;
1012 }
1013 
1014 /**
1015  *  ixgbe_read_i2c_eeprom_82598 - Reads 8 bit word over I2C interface.
1016  *  @hw: pointer to hardware structure
1017  *  @byte_offset: EEPROM byte offset to read
1018  *  @eeprom_data: value read
1019  *
1020  *  Performs 8 byte read operation to SFP module's EEPROM over I2C interface.
1021  **/
ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw * hw,u8 byte_offset,u8 * eeprom_data)1022 static s32 ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
1023 				       u8 *eeprom_data)
1024 {
1025 	return ixgbe_read_i2c_phy_82598(hw, IXGBE_I2C_EEPROM_DEV_ADDR,
1026 					byte_offset, eeprom_data);
1027 }
1028 
1029 /**
1030  *  ixgbe_read_i2c_sff8472_82598 - Reads 8 bit word over I2C interface.
1031  *  @hw: pointer to hardware structure
1032  *  @byte_offset: byte offset at address 0xA2
1033  *  @sff8472_data: value read
1034  *
1035  *  Performs 8 byte read operation to SFP module's SFF-8472 data over I2C
1036  **/
ixgbe_read_i2c_sff8472_82598(struct ixgbe_hw * hw,u8 byte_offset,u8 * sff8472_data)1037 static s32 ixgbe_read_i2c_sff8472_82598(struct ixgbe_hw *hw, u8 byte_offset,
1038 				       u8 *sff8472_data)
1039 {
1040 	return ixgbe_read_i2c_phy_82598(hw, IXGBE_I2C_EEPROM_DEV_ADDR2,
1041 					byte_offset, sff8472_data);
1042 }
1043 
1044 /**
1045  *  ixgbe_set_lan_id_multi_port_pcie_82598 - Set LAN id for PCIe multiple
1046  *  port devices.
1047  *  @hw: pointer to the HW structure
1048  *
1049  *  Calls common function and corrects issue with some single port devices
1050  *  that enable LAN1 but not LAN0.
1051  **/
ixgbe_set_lan_id_multi_port_pcie_82598(struct ixgbe_hw * hw)1052 static void ixgbe_set_lan_id_multi_port_pcie_82598(struct ixgbe_hw *hw)
1053 {
1054 	struct ixgbe_bus_info *bus = &hw->bus;
1055 	u16 pci_gen = 0;
1056 	u16 pci_ctrl2 = 0;
1057 
1058 	ixgbe_set_lan_id_multi_port_pcie(hw);
1059 
1060 	/* check if LAN0 is disabled */
1061 	hw->eeprom.ops.read(hw, IXGBE_PCIE_GENERAL_PTR, &pci_gen);
1062 	if ((pci_gen != 0) && (pci_gen != 0xFFFF)) {
1063 
1064 		hw->eeprom.ops.read(hw, pci_gen + IXGBE_PCIE_CTRL2, &pci_ctrl2);
1065 
1066 		/* if LAN0 is completely disabled force function to 0 */
1067 		if ((pci_ctrl2 & IXGBE_PCIE_CTRL2_LAN_DISABLE) &&
1068 		    !(pci_ctrl2 & IXGBE_PCIE_CTRL2_DISABLE_SELECT) &&
1069 		    !(pci_ctrl2 & IXGBE_PCIE_CTRL2_DUMMY_ENABLE)) {
1070 
1071 			bus->func = 0;
1072 		}
1073 	}
1074 }
1075 
1076 /**
1077  * ixgbe_set_rxpba_82598 - Initialize RX packet buffer
1078  * @hw: pointer to hardware structure
1079  * @num_pb: number of packet buffers to allocate
1080  * @headroom: reserve n KB of headroom
1081  * @strategy: packet buffer allocation strategy
1082  **/
ixgbe_set_rxpba_82598(struct ixgbe_hw * hw,int num_pb,u32 headroom,int strategy)1083 static void ixgbe_set_rxpba_82598(struct ixgbe_hw *hw, int num_pb,
1084 				  u32 headroom, int strategy)
1085 {
1086 	u32 rxpktsize = IXGBE_RXPBSIZE_64KB;
1087 	u8  i = 0;
1088 
1089 	if (!num_pb)
1090 		return;
1091 
1092 	/* Setup Rx packet buffer sizes */
1093 	switch (strategy) {
1094 	case PBA_STRATEGY_WEIGHTED:
1095 		/* Setup the first four at 80KB */
1096 		rxpktsize = IXGBE_RXPBSIZE_80KB;
1097 		for (; i < 4; i++)
1098 			IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
1099 		/* Setup the last four at 48KB...don't re-init i */
1100 		rxpktsize = IXGBE_RXPBSIZE_48KB;
1101 		fallthrough;
1102 	case PBA_STRATEGY_EQUAL:
1103 	default:
1104 		/* Divide the remaining Rx packet buffer evenly among the TCs */
1105 		for (; i < IXGBE_MAX_PACKET_BUFFERS; i++)
1106 			IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
1107 		break;
1108 	}
1109 
1110 	/* Setup Tx packet buffer sizes */
1111 	for (i = 0; i < IXGBE_MAX_PACKET_BUFFERS; i++)
1112 		IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i), IXGBE_TXPBSIZE_40KB);
1113 }
1114 
1115 static const struct ixgbe_mac_operations mac_ops_82598 = {
1116 	.init_hw		= &ixgbe_init_hw_generic,
1117 	.reset_hw		= &ixgbe_reset_hw_82598,
1118 	.start_hw		= &ixgbe_start_hw_82598,
1119 	.clear_hw_cntrs		= &ixgbe_clear_hw_cntrs_generic,
1120 	.get_media_type		= &ixgbe_get_media_type_82598,
1121 	.enable_rx_dma          = &ixgbe_enable_rx_dma_generic,
1122 	.get_mac_addr		= &ixgbe_get_mac_addr_generic,
1123 	.stop_adapter		= &ixgbe_stop_adapter_generic,
1124 	.get_bus_info           = &ixgbe_get_bus_info_generic,
1125 	.set_lan_id             = &ixgbe_set_lan_id_multi_port_pcie_82598,
1126 	.read_analog_reg8	= &ixgbe_read_analog_reg8_82598,
1127 	.write_analog_reg8	= &ixgbe_write_analog_reg8_82598,
1128 	.setup_link		= &ixgbe_setup_mac_link_82598,
1129 	.set_rxpba		= &ixgbe_set_rxpba_82598,
1130 	.check_link		= &ixgbe_check_mac_link_82598,
1131 	.get_link_capabilities	= &ixgbe_get_link_capabilities_82598,
1132 	.led_on			= &ixgbe_led_on_generic,
1133 	.led_off		= &ixgbe_led_off_generic,
1134 	.init_led_link_act	= ixgbe_init_led_link_act_generic,
1135 	.blink_led_start	= &ixgbe_blink_led_start_generic,
1136 	.blink_led_stop		= &ixgbe_blink_led_stop_generic,
1137 	.set_rar		= &ixgbe_set_rar_generic,
1138 	.clear_rar		= &ixgbe_clear_rar_generic,
1139 	.set_vmdq		= &ixgbe_set_vmdq_82598,
1140 	.clear_vmdq		= &ixgbe_clear_vmdq_82598,
1141 	.init_rx_addrs		= &ixgbe_init_rx_addrs_generic,
1142 	.update_mc_addr_list	= &ixgbe_update_mc_addr_list_generic,
1143 	.enable_mc		= &ixgbe_enable_mc_generic,
1144 	.disable_mc		= &ixgbe_disable_mc_generic,
1145 	.clear_vfta		= &ixgbe_clear_vfta_82598,
1146 	.set_vfta		= &ixgbe_set_vfta_82598,
1147 	.fc_enable		= &ixgbe_fc_enable_82598,
1148 	.setup_fc		= ixgbe_setup_fc_generic,
1149 	.fc_autoneg		= ixgbe_fc_autoneg,
1150 	.set_fw_drv_ver         = NULL,
1151 	.acquire_swfw_sync      = &ixgbe_acquire_swfw_sync,
1152 	.release_swfw_sync      = &ixgbe_release_swfw_sync,
1153 	.init_swfw_sync		= NULL,
1154 	.get_thermal_sensor_data = NULL,
1155 	.init_thermal_sensor_thresh = NULL,
1156 	.prot_autoc_read	= &prot_autoc_read_generic,
1157 	.prot_autoc_write	= &prot_autoc_write_generic,
1158 	.enable_rx		= &ixgbe_enable_rx_generic,
1159 	.disable_rx		= &ixgbe_disable_rx_generic,
1160 };
1161 
1162 static const struct ixgbe_eeprom_operations eeprom_ops_82598 = {
1163 	.init_params		= &ixgbe_init_eeprom_params_generic,
1164 	.read			= &ixgbe_read_eerd_generic,
1165 	.write			= &ixgbe_write_eeprom_generic,
1166 	.write_buffer		= &ixgbe_write_eeprom_buffer_bit_bang_generic,
1167 	.read_buffer		= &ixgbe_read_eerd_buffer_generic,
1168 	.calc_checksum          = &ixgbe_calc_eeprom_checksum_generic,
1169 	.validate_checksum	= &ixgbe_validate_eeprom_checksum_generic,
1170 	.update_checksum	= &ixgbe_update_eeprom_checksum_generic,
1171 };
1172 
1173 static const struct ixgbe_phy_operations phy_ops_82598 = {
1174 	.identify		= &ixgbe_identify_phy_generic,
1175 	.identify_sfp		= &ixgbe_identify_module_generic,
1176 	.init			= &ixgbe_init_phy_ops_82598,
1177 	.reset			= &ixgbe_reset_phy_generic,
1178 	.read_reg		= &ixgbe_read_phy_reg_generic,
1179 	.write_reg		= &ixgbe_write_phy_reg_generic,
1180 	.read_reg_mdi		= &ixgbe_read_phy_reg_mdi,
1181 	.write_reg_mdi		= &ixgbe_write_phy_reg_mdi,
1182 	.setup_link		= &ixgbe_setup_phy_link_generic,
1183 	.setup_link_speed	= &ixgbe_setup_phy_link_speed_generic,
1184 	.read_i2c_sff8472	= &ixgbe_read_i2c_sff8472_82598,
1185 	.read_i2c_eeprom	= &ixgbe_read_i2c_eeprom_82598,
1186 	.check_overtemp		= &ixgbe_tn_check_overtemp,
1187 };
1188 
1189 const struct ixgbe_info ixgbe_82598_info = {
1190 	.mac			= ixgbe_mac_82598EB,
1191 	.get_invariants		= &ixgbe_get_invariants_82598,
1192 	.mac_ops		= &mac_ops_82598,
1193 	.eeprom_ops		= &eeprom_ops_82598,
1194 	.phy_ops		= &phy_ops_82598,
1195 	.mvals			= ixgbe_mvals_8259X,
1196 };
1197