ixgbe_82598.c 38.0 KB
Newer Older
1 2 3
/*******************************************************************************

  Intel 10 Gigabit PCI Express Linux driver
D
Don Skidmore 已提交
4
  Copyright(c) 1999 - 2012 Intel Corporation.
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

  This program is free software; you can redistribute it and/or modify it
  under the terms and conditions of the GNU General Public License,
  version 2, as published by the Free Software Foundation.

  This program is distributed in the hope it will be useful, but WITHOUT
  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  more details.

  You should have received a copy of the GNU General Public License along with
  this program; if not, write to the Free Software Foundation, Inc.,
  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.

  The full GNU General Public License is included in this distribution in
  the file called "COPYING".

  Contact Information:
  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497

*******************************************************************************/

#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/sched.h>

S
Stephen Hemminger 已提交
32
#include "ixgbe.h"
33 34 35 36 37
#include "ixgbe_phy.h"

#define IXGBE_82598_MAX_TX_QUEUES 32
#define IXGBE_82598_MAX_RX_QUEUES 64
#define IXGBE_82598_RAR_ENTRIES   16
38 39
#define IXGBE_82598_MC_TBL_SIZE  128
#define IXGBE_82598_VFT_TBL_SIZE 128
40
#define IXGBE_82598_RX_PB_SIZE	 512
41

42
static s32 ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw,
43 44 45
                                         ixgbe_link_speed speed,
                                         bool autoneg,
                                         bool autoneg_wait_to_complete);
D
Donald Skidmore 已提交
46 47
static s32 ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
                                       u8 *eeprom_data);
48

49 50 51 52 53 54 55 56 57 58
/**
 *  ixgbe_set_pcie_completion_timeout - set pci-e completion timeout
 *  @hw: pointer to the HW structure
 *
 *  The defaults for 82598 should be in the range of 50us to 50ms,
 *  however the hardware default for these parts is 500us to 1ms which is less
 *  than the 10ms recommended by the pci-e spec.  To address this we need to
 *  increase the value to either 10ms to 250ms for capability version 1 config,
 *  or 16ms to 55ms for version 2.
 **/
59
static void ixgbe_set_pcie_completion_timeout(struct ixgbe_hw *hw)
60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93
{
	struct ixgbe_adapter *adapter = hw->back;
	u32 gcr = IXGBE_READ_REG(hw, IXGBE_GCR);
	u16 pcie_devctl2;

	/* only take action if timeout value is defaulted to 0 */
	if (gcr & IXGBE_GCR_CMPL_TMOUT_MASK)
		goto out;

	/*
	 * if capababilities version is type 1 we can write the
	 * timeout of 10ms to 250ms through the GCR register
	 */
	if (!(gcr & IXGBE_GCR_CAP_VER2)) {
		gcr |= IXGBE_GCR_CMPL_TMOUT_10ms;
		goto out;
	}

	/*
	 * for version 2 capabilities we need to write the config space
	 * directly in order to set the completion timeout value for
	 * 16ms to 55ms
	 */
	pci_read_config_word(adapter->pdev,
	                     IXGBE_PCI_DEVICE_CONTROL2, &pcie_devctl2);
	pcie_devctl2 |= IXGBE_PCI_DEVICE_CONTROL2_16ms;
	pci_write_config_word(adapter->pdev,
	                      IXGBE_PCI_DEVICE_CONTROL2, pcie_devctl2);
out:
	/* disable completion timeout resend */
	gcr &= ~IXGBE_GCR_CMPL_TMOUT_RESEND;
	IXGBE_WRITE_REG(hw, IXGBE_GCR, gcr);
}

94
static s32 ixgbe_get_invariants_82598(struct ixgbe_hw *hw)
95 96 97 98 99 100 101 102 103 104 105
{
	struct ixgbe_mac_info *mac = &hw->mac;

	/* Call PHY identify routine to get the phy type */
	ixgbe_identify_phy_generic(hw);

	mac->mcft_size = IXGBE_82598_MC_TBL_SIZE;
	mac->vft_size = IXGBE_82598_VFT_TBL_SIZE;
	mac->num_rar_entries = IXGBE_82598_RAR_ENTRIES;
	mac->max_rx_queues = IXGBE_82598_MAX_RX_QUEUES;
	mac->max_tx_queues = IXGBE_82598_MAX_TX_QUEUES;
106
	mac->max_msix_vectors = ixgbe_get_pcie_msix_count_generic(hw);
107 108 109 110 111 112 113 114 115 116 117 118 119

	return 0;
}

/**
 *  ixgbe_init_phy_ops_82598 - PHY/SFP specific init
 *  @hw: pointer to hardware structure
 *
 *  Initialize any function pointers that were not able to be
 *  set during get_invariants because the PHY/SFP type was
 *  not known.  Perform the SFP init if necessary.
 *
 **/
120
static s32 ixgbe_init_phy_ops_82598(struct ixgbe_hw *hw)
121
{
122 123
	struct ixgbe_mac_info *mac = &hw->mac;
	struct ixgbe_phy_info *phy = &hw->phy;
D
Donald Skidmore 已提交
124 125
	s32 ret_val = 0;
	u16 list_offset, data_offset;
126

127 128
	/* Identify the PHY */
	phy->ops.identify(hw);
129

130 131 132 133
	/* Overwrite the link function pointers if copper PHY */
	if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper) {
		mac->ops.setup_link = &ixgbe_setup_copper_link_82598;
		mac->ops.get_link_capabilities =
134
			&ixgbe_get_copper_link_capabilities_generic;
135
	}
136

137
	switch (hw->phy.type) {
138
	case ixgbe_phy_tn:
139
		phy->ops.setup_link = &ixgbe_setup_phy_link_tnx;
140 141 142 143
		phy->ops.check_link = &ixgbe_check_phy_link_tnx;
		phy->ops.get_firmware_version =
		             &ixgbe_get_phy_firmware_version_tnx;
		break;
D
Donald Skidmore 已提交
144 145 146 147 148 149 150 151 152 153 154 155 156 157
	case ixgbe_phy_nl:
		phy->ops.reset = &ixgbe_reset_phy_nl;

		/* Call SFP+ identify routine to get the SFP+ module type */
		ret_val = phy->ops.identify_sfp(hw);
		if (ret_val != 0)
			goto out;
		else if (hw->phy.sfp_type == ixgbe_sfp_type_unknown) {
			ret_val = IXGBE_ERR_SFP_NOT_SUPPORTED;
			goto out;
		}

		/* Check to see if SFP+ module is supported */
		ret_val = ixgbe_get_sfp_init_sequence_offsets(hw,
158 159
		                                            &list_offset,
		                                            &data_offset);
D
Donald Skidmore 已提交
160 161 162 163 164
		if (ret_val != 0) {
			ret_val = IXGBE_ERR_SFP_NOT_SUPPORTED;
			goto out;
		}
		break;
165 166 167 168
	default:
		break;
	}

D
Donald Skidmore 已提交
169 170
out:
	return ret_val;
171 172
}

173 174 175 176 177
/**
 *  ixgbe_start_hw_82598 - Prepare hardware for Tx/Rx
 *  @hw: pointer to hardware structure
 *
 *  Starts the hardware using the generic start_hw function.
178 179
 *  Disables relaxed ordering Then set pcie completion timeout
 *
180
 **/
181
static s32 ixgbe_start_hw_82598(struct ixgbe_hw *hw)
182
{
183 184
	u32 regval;
	u32 i;
185 186 187 188
	s32 ret_val = 0;

	ret_val = ixgbe_start_hw_generic(hw);

189 190 191 192
	/* Disable relaxed ordering */
	for (i = 0; ((i < hw->mac.max_tx_queues) &&
	     (i < IXGBE_DCA_MAX_QUEUES_82598)); i++) {
		regval = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL(i));
193
		regval &= ~IXGBE_DCA_TXCTRL_DESC_WRO_EN;
194 195 196 197 198 199
		IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL(i), regval);
	}

	for (i = 0; ((i < hw->mac.max_rx_queues) &&
	     (i < IXGBE_DCA_MAX_QUEUES_82598)); i++) {
		regval = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i));
200 201
		regval &= ~(IXGBE_DCA_RXCTRL_DATA_WRO_EN |
			    IXGBE_DCA_RXCTRL_HEAD_WRO_EN);
202 203 204
		IXGBE_WRITE_REG(hw, IXGBE_DCA_RXCTRL(i), regval);
	}

205 206
	hw->mac.rx_pb_size = IXGBE_82598_RX_PB_SIZE;

207 208 209 210 211 212 213
	/* set the completion timeout for interface */
	if (ret_val == 0)
		ixgbe_set_pcie_completion_timeout(hw);

	return ret_val;
}

214
/**
215
 *  ixgbe_get_link_capabilities_82598 - Determines link capabilities
216 217 218 219
 *  @hw: pointer to hardware structure
 *  @speed: pointer to link speed
 *  @autoneg: boolean auto-negotiation value
 *
220
 *  Determines the link capabilities by reading the AUTOC register.
221
 **/
222
static s32 ixgbe_get_link_capabilities_82598(struct ixgbe_hw *hw,
223 224
                                             ixgbe_link_speed *speed,
                                             bool *autoneg)
225 226
{
	s32 status = 0;
227
	u32 autoc = 0;
228

229 230
	/*
	 * Determine link capabilities based on the stored value of AUTOC,
231 232
	 * which represents EEPROM defaults.  If AUTOC value has not been
	 * stored, use the current register value.
233
	 */
234 235 236 237 238 239
	if (hw->mac.orig_link_settings_stored)
		autoc = hw->mac.orig_autoc;
	else
		autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);

	switch (autoc & IXGBE_AUTOC_LMS_MASK) {
240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257
	case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
		*speed = IXGBE_LINK_SPEED_1GB_FULL;
		*autoneg = false;
		break;

	case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
		*speed = IXGBE_LINK_SPEED_10GB_FULL;
		*autoneg = false;
		break;

	case IXGBE_AUTOC_LMS_1G_AN:
		*speed = IXGBE_LINK_SPEED_1GB_FULL;
		*autoneg = true;
		break;

	case IXGBE_AUTOC_LMS_KX4_AN:
	case IXGBE_AUTOC_LMS_KX4_AN_1G_AN:
		*speed = IXGBE_LINK_SPEED_UNKNOWN;
258
		if (autoc & IXGBE_AUTOC_KX4_SUPP)
259
			*speed |= IXGBE_LINK_SPEED_10GB_FULL;
260
		if (autoc & IXGBE_AUTOC_KX_SUPP)
261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282
			*speed |= IXGBE_LINK_SPEED_1GB_FULL;
		*autoneg = true;
		break;

	default:
		status = IXGBE_ERR_LINK_SETUP;
		break;
	}

	return status;
}

/**
 *  ixgbe_get_media_type_82598 - Determines media type
 *  @hw: pointer to hardware structure
 *
 *  Returns the media type (fiber, copper, backplane)
 **/
static enum ixgbe_media_type ixgbe_get_media_type_82598(struct ixgbe_hw *hw)
{
	enum ixgbe_media_type media_type;

E
Emil Tantilov 已提交
283 284 285 286 287 288 289 290 291 292
	/* Detect if there is a copper PHY attached. */
	switch (hw->phy.type) {
	case ixgbe_phy_cu_unknown:
	case ixgbe_phy_tn:
		media_type = ixgbe_media_type_copper;
		goto out;
	default:
		break;
	}

293 294
	/* Media type for I82598 is based on device ID */
	switch (hw->device_id) {
D
Don Skidmore 已提交
295
	case IXGBE_DEV_ID_82598:
296
	case IXGBE_DEV_ID_82598_BX:
E
Emil Tantilov 已提交
297
		/* Default device ID is mezzanine card KX/KX4 */
D
Don Skidmore 已提交
298 299
		media_type = ixgbe_media_type_backplane;
		break;
300 301
	case IXGBE_DEV_ID_82598AF_DUAL_PORT:
	case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
D
Donald Skidmore 已提交
302 303
	case IXGBE_DEV_ID_82598_DA_DUAL_PORT:
	case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM:
304
	case IXGBE_DEV_ID_82598EB_XF_LR:
D
Donald Skidmore 已提交
305
	case IXGBE_DEV_ID_82598EB_SFP_LOM:
306 307
		media_type = ixgbe_media_type_fiber;
		break;
308 309 310 311
	case IXGBE_DEV_ID_82598EB_CX4:
	case IXGBE_DEV_ID_82598_CX4_DUAL_PORT:
		media_type = ixgbe_media_type_cx4;
		break;
312
	case IXGBE_DEV_ID_82598AT:
313
	case IXGBE_DEV_ID_82598AT2:
314 315
		media_type = ixgbe_media_type_copper;
		break;
316 317 318 319
	default:
		media_type = ixgbe_media_type_unknown;
		break;
	}
E
Emil Tantilov 已提交
320
out:
321 322 323
	return media_type;
}

324
/**
325
 *  ixgbe_fc_enable_82598 - Enable flow control
326 327 328
 *  @hw: pointer to hardware structure
 *  @packetbuf_num: packet buffer number (0-7)
 *
329
 *  Enable flow control according to the current settings.
330
 **/
331
static s32 ixgbe_fc_enable_82598(struct ixgbe_hw *hw, s32 packetbuf_num)
332
{
333 334
	s32 ret_val = 0;
	u32 fctrl_reg;
335
	u32 rmcs_reg;
336
	u32 reg;
337 338
	u32 link_speed = 0;
	bool link_up;
339

340 341 342 343 344
#ifdef CONFIG_DCB
	if (hw->fc.requested_mode == ixgbe_fc_pfc)
		goto out;

#endif /* CONFIG_DCB */
345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364
	/*
	 * On 82598 having Rx FC on causes resets while doing 1G
	 * so if it's on turn it off once we know link_speed. For
	 * more details see 82598 Specification update.
	 */
	hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
	if (link_up && link_speed == IXGBE_LINK_SPEED_1GB_FULL) {
		switch (hw->fc.requested_mode) {
		case ixgbe_fc_full:
			hw->fc.requested_mode = ixgbe_fc_tx_pause;
			break;
		case ixgbe_fc_rx_pause:
			hw->fc.requested_mode = ixgbe_fc_none;
			break;
		default:
			/* no change */
			break;
		}
	}

365 366
	/* Negotiate the fc mode to use */
	ret_val = ixgbe_fc_autoneg(hw);
367
	if (ret_val == IXGBE_ERR_FLOW_CONTROL)
368 369 370
		goto out;

	/* Disable any previous flow control settings */
371 372
	fctrl_reg = IXGBE_READ_REG(hw, IXGBE_FCTRL);
	fctrl_reg &= ~(IXGBE_FCTRL_RFCE | IXGBE_FCTRL_RPFCE);
373 374 375 376 377

	rmcs_reg = IXGBE_READ_REG(hw, IXGBE_RMCS);
	rmcs_reg &= ~(IXGBE_RMCS_TFCE_PRIORITY | IXGBE_RMCS_TFCE_802_3X);

	/*
378
	 * The possible values of fc.current_mode are:
379
	 * 0: Flow control is completely disabled
380 381
	 * 1: Rx flow control is enabled (we can receive pause frames,
	 *    but not send pause frames).
382
	 * 2: Tx flow control is enabled (we can send pause frames but
383
	 *     we do not support receiving pause frames).
384
	 * 3: Both Rx and Tx flow control (symmetric) are enabled.
385 386 387
#ifdef CONFIG_DCB
	 * 4: Priority Flow Control is enabled.
#endif
388
	 * other: Invalid.
389
	 */
390
	switch (hw->fc.current_mode) {
391
	case ixgbe_fc_none:
392 393 394 395
		/*
		 * Flow control is disabled by software override or autoneg.
		 * The code below will actually disable it in the HW.
		 */
396 397 398
		break;
	case ixgbe_fc_rx_pause:
		/*
399 400 401 402 403 404
		 * Rx Flow control is enabled and Tx Flow control is
		 * disabled by software override. Since there really
		 * isn't a way to advertise that we are capable of RX
		 * Pause ONLY, we will advertise that we support both
		 * symmetric and asymmetric Rx PAUSE.  Later, we will
		 * disable the adapter's ability to send PAUSE frames.
405
		 */
406
		fctrl_reg |= IXGBE_FCTRL_RFCE;
407 408 409
		break;
	case ixgbe_fc_tx_pause:
		/*
410 411
		 * Tx Flow control is enabled, and Rx Flow control is
		 * disabled by software override.
412 413 414 415
		 */
		rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
		break;
	case ixgbe_fc_full:
416 417
		/* Flow control (both Rx and Tx) is enabled by SW override. */
		fctrl_reg |= IXGBE_FCTRL_RFCE;
418 419
		rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
		break;
420 421 422 423 424
#ifdef CONFIG_DCB
	case ixgbe_fc_pfc:
		goto out;
		break;
#endif /* CONFIG_DCB */
425 426
	default:
		hw_dbg(hw, "Flow control param set incorrectly\n");
427
		ret_val = IXGBE_ERR_CONFIG;
428
		goto out;
429 430 431
		break;
	}

432
	/* Set 802.3x based flow control settings. */
433
	fctrl_reg |= IXGBE_FCTRL_DPF;
434
	IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl_reg);
435 436
	IXGBE_WRITE_REG(hw, IXGBE_RMCS, rmcs_reg);

437 438
	/* Set up and enable Rx high/low water mark thresholds, enable XON. */
	if (hw->fc.current_mode & ixgbe_fc_tx_pause) {
439
		reg = hw->fc.low_water << 6;
440 441
		if (hw->fc.send_xon)
			reg |= IXGBE_FCRTL_XONE;
442

443 444
		IXGBE_WRITE_REG(hw, IXGBE_FCRTL(packetbuf_num), reg);

445
		reg = hw->fc.high_water[packetbuf_num] << 6;
446
		reg |= IXGBE_FCRTH_FCEN;
447

448
		IXGBE_WRITE_REG(hw, IXGBE_FCRTH(packetbuf_num), reg);
449 450
	}

451
	/* Configure pause time (2 TCs per register) */
452
	reg = IXGBE_READ_REG(hw, IXGBE_FCTTV(packetbuf_num / 2));
453 454 455 456 457 458
	if ((packetbuf_num & 1) == 0)
		reg = (reg & 0xFFFF0000) | hw->fc.pause_time;
	else
		reg = (reg & 0x0000FFFF) | (hw->fc.pause_time << 16);
	IXGBE_WRITE_REG(hw, IXGBE_FCTTV(packetbuf_num / 2), reg);

459 460
	IXGBE_WRITE_REG(hw, IXGBE_FCRTV, (hw->fc.pause_time >> 1));

461 462 463 464
out:
	return ret_val;
}

465
/**
466
 *  ixgbe_start_mac_link_82598 - Configures MAC link settings
467 468 469 470 471
 *  @hw: pointer to hardware structure
 *
 *  Configures link settings based on values in the ixgbe_hw struct.
 *  Restarts the link.  Performs autonegotiation if needed.
 **/
472 473
static s32 ixgbe_start_mac_link_82598(struct ixgbe_hw *hw,
                                      bool autoneg_wait_to_complete)
474 475 476 477 478 479 480
{
	u32 autoc_reg;
	u32 links_reg;
	u32 i;
	s32 status = 0;

	/* Restart link */
481
	autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
482 483 484 485
	autoc_reg |= IXGBE_AUTOC_AN_RESTART;
	IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);

	/* Only poll for autoneg to complete if specified to do so */
486
	if (autoneg_wait_to_complete) {
487 488 489 490
		if ((autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
		     IXGBE_AUTOC_LMS_KX4_AN ||
		    (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
		     IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
491 492 493 494 495 496 497 498 499
			links_reg = 0; /* Just in case Autoneg time = 0 */
			for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
				links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
				if (links_reg & IXGBE_LINKS_KX_AN_COMP)
					break;
				msleep(100);
			}
			if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
				status = IXGBE_ERR_AUTONEG_NOT_COMPLETE;
500
				hw_dbg(hw, "Autonegotiation did not complete.\n");
501 502 503 504 505 506 507 508 509 510
			}
		}
	}

	/* Add delay to filter out noises during initial link setup */
	msleep(50);

	return status;
}

511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544
/**
 *  ixgbe_validate_link_ready - Function looks for phy link
 *  @hw: pointer to hardware structure
 *
 *  Function indicates success when phy link is available. If phy is not ready
 *  within 5 seconds of MAC indicating link, the function returns error.
 **/
static s32 ixgbe_validate_link_ready(struct ixgbe_hw *hw)
{
	u32 timeout;
	u16 an_reg;

	if (hw->device_id != IXGBE_DEV_ID_82598AT2)
		return 0;

	for (timeout = 0;
	     timeout < IXGBE_VALIDATE_LINK_READY_TIMEOUT; timeout++) {
		hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN, &an_reg);

		if ((an_reg & MDIO_AN_STAT1_COMPLETE) &&
		    (an_reg & MDIO_STAT1_LSTATUS))
			break;

		msleep(100);
	}

	if (timeout == IXGBE_VALIDATE_LINK_READY_TIMEOUT) {
		hw_dbg(hw, "Link was indicated but link is down\n");
		return IXGBE_ERR_LINK_SETUP;
	}

	return 0;
}

545 546 547 548 549
/**
 *  ixgbe_check_mac_link_82598 - Get link/speed status
 *  @hw: pointer to hardware structure
 *  @speed: pointer to link speed
 *  @link_up: true is link is up, false otherwise
550
 *  @link_up_wait_to_complete: bool used to wait for link up or not
551 552 553
 *
 *  Reads the links register to determine if link is up and the current speed
 **/
554 555 556
static s32 ixgbe_check_mac_link_82598(struct ixgbe_hw *hw,
                                      ixgbe_link_speed *speed, bool *link_up,
                                      bool link_up_wait_to_complete)
557 558
{
	u32 links_reg;
559
	u32 i;
D
Donald Skidmore 已提交
560 561 562 563 564 565 566 567 568
	u16 link_reg, adapt_comp_reg;

	/*
	 * SERDES PHY requires us to read link status from register 0xC79F.
	 * Bit 0 set indicates link is up/ready; clear indicates link down.
	 * 0xC00C is read to check that the XAUI lanes are active.  Bit 0
	 * clear indicates active; set indicates inactive.
	 */
	if (hw->phy.type == ixgbe_phy_nl) {
569 570 571
		hw->phy.ops.read_reg(hw, 0xC79F, MDIO_MMD_PMAPMD, &link_reg);
		hw->phy.ops.read_reg(hw, 0xC79F, MDIO_MMD_PMAPMD, &link_reg);
		hw->phy.ops.read_reg(hw, 0xC00C, MDIO_MMD_PMAPMD,
D
Donald Skidmore 已提交
572 573 574 575 576 577 578 579 580 581 582 583
		                     &adapt_comp_reg);
		if (link_up_wait_to_complete) {
			for (i = 0; i < IXGBE_LINK_UP_TIME; i++) {
				if ((link_reg & 1) &&
				    ((adapt_comp_reg & 1) == 0)) {
					*link_up = true;
					break;
				} else {
					*link_up = false;
				}
				msleep(100);
				hw->phy.ops.read_reg(hw, 0xC79F,
584
				                     MDIO_MMD_PMAPMD,
D
Donald Skidmore 已提交
585 586
				                     &link_reg);
				hw->phy.ops.read_reg(hw, 0xC00C,
587
				                     MDIO_MMD_PMAPMD,
D
Donald Skidmore 已提交
588 589 590 591 592 593 594 595 596
				                     &adapt_comp_reg);
			}
		} else {
			if ((link_reg & 1) && ((adapt_comp_reg & 1) == 0))
				*link_up = true;
			else
				*link_up = false;
		}

597
		if (!*link_up)
D
Donald Skidmore 已提交
598 599
			goto out;
	}
600 601

	links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618
	if (link_up_wait_to_complete) {
		for (i = 0; i < IXGBE_LINK_UP_TIME; i++) {
			if (links_reg & IXGBE_LINKS_UP) {
				*link_up = true;
				break;
			} else {
				*link_up = false;
			}
			msleep(100);
			links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
		}
	} else {
		if (links_reg & IXGBE_LINKS_UP)
			*link_up = true;
		else
			*link_up = false;
	}
619 620 621 622 623 624

	if (links_reg & IXGBE_LINKS_SPEED)
		*speed = IXGBE_LINK_SPEED_10GB_FULL;
	else
		*speed = IXGBE_LINK_SPEED_1GB_FULL;

625
	if ((hw->device_id == IXGBE_DEV_ID_82598AT2) && *link_up &&
626 627 628
	    (ixgbe_validate_link_ready(hw) != 0))
		*link_up = false;

D
Donald Skidmore 已提交
629
out:
630 631 632 633
	return 0;
}

/**
634
 *  ixgbe_setup_mac_link_82598 - Set MAC link speed
635 636 637
 *  @hw: pointer to hardware structure
 *  @speed: new link speed
 *  @autoneg: true if auto-negotiation enabled
E
Emil Tantilov 已提交
638
 *  @autoneg_wait_to_complete: true when waiting for completion is needed
639 640 641
 *
 *  Set the link speed in the AUTOC register and restarts link.
 **/
642
static s32 ixgbe_setup_mac_link_82598(struct ixgbe_hw *hw,
643 644
                                           ixgbe_link_speed speed, bool autoneg,
                                           bool autoneg_wait_to_complete)
645
{
646 647 648 649 650
	s32              status            = 0;
	ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN;
	u32              curr_autoc        = IXGBE_READ_REG(hw, IXGBE_AUTOC);
	u32              autoc             = curr_autoc;
	u32              link_mode         = autoc & IXGBE_AUTOC_LMS_MASK;
651

652 653 654 655 656
	/* Check to see if speed passed in is supported. */
	ixgbe_get_link_capabilities_82598(hw, &link_capabilities, &autoneg);
	speed &= link_capabilities;

	if (speed == IXGBE_LINK_SPEED_UNKNOWN)
657
		status = IXGBE_ERR_LINK_SETUP;
658 659 660 661 662 663 664 665 666 667 668

	/* Set KX4/KX support according to speed requested */
	else if (link_mode == IXGBE_AUTOC_LMS_KX4_AN ||
	         link_mode == IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
		autoc &= ~IXGBE_AUTOC_KX4_KX_SUPP_MASK;
		if (speed & IXGBE_LINK_SPEED_10GB_FULL)
			autoc |= IXGBE_AUTOC_KX4_SUPP;
		if (speed & IXGBE_LINK_SPEED_1GB_FULL)
			autoc |= IXGBE_AUTOC_KX_SUPP;
		if (autoc != curr_autoc)
			IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc);
669 670 671 672 673 674 675 676
	}

	if (status == 0) {
		/*
		 * Setup and restart the link based on the new values in
		 * ixgbe_hw This will write the AUTOC register based on the new
		 * stored values
		 */
E
Emil Tantilov 已提交
677 678
		status = ixgbe_start_mac_link_82598(hw,
						    autoneg_wait_to_complete);
679 680 681 682 683 684 685
	}

	return status;
}


/**
686
 *  ixgbe_setup_copper_link_82598 - Set the PHY autoneg advertised field
687 688 689 690 691 692 693
 *  @hw: pointer to hardware structure
 *  @speed: new link speed
 *  @autoneg: true if autonegotiation enabled
 *  @autoneg_wait_to_complete: true if waiting is needed to complete
 *
 *  Sets the link speed in the AUTOC register in the MAC and restarts link.
 **/
694
static s32 ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw,
695 696 697
                                               ixgbe_link_speed speed,
                                               bool autoneg,
                                               bool autoneg_wait_to_complete)
698
{
699
	s32 status;
700 701

	/* Setup the PHY according to input speed */
702 703
	status = hw->phy.ops.setup_link_speed(hw, speed, autoneg,
	                                      autoneg_wait_to_complete);
704
	/* Set up MAC */
705
	ixgbe_start_mac_link_82598(hw, autoneg_wait_to_complete);
706 707 708 709 710 711 712 713

	return status;
}

/**
 *  ixgbe_reset_hw_82598 - Performs hardware reset
 *  @hw: pointer to hardware structure
 *
714
 *  Resets the hardware by resetting the transmit and receive units, masks and
715 716 717 718 719 720
 *  clears all interrupts, performing a PHY reset, and performing a link (MAC)
 *  reset.
 **/
static s32 ixgbe_reset_hw_82598(struct ixgbe_hw *hw)
{
	s32 status = 0;
721
	s32 phy_status = 0;
722 723 724 725 726 727 728
	u32 ctrl;
	u32 gheccr;
	u32 i;
	u32 autoc;
	u8  analog_val;

	/* Call adapter stop to disable tx/rx and clear interrupts */
729 730 731
	status = hw->mac.ops.stop_adapter(hw);
	if (status != 0)
		goto reset_hw_out;
732 733

	/*
734 735
	 * Power up the Atlas Tx lanes if they are currently powered down.
	 * Atlas Tx lanes are powered down for MAC loopback tests, but
736 737
	 * they are not automatically restored on reset.
	 */
738
	hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK, &analog_val);
739
	if (analog_val & IXGBE_ATLAS_PDN_TX_REG_EN) {
740 741 742
		/* Enable Tx Atlas so packets can be transmitted again */
		hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
		                             &analog_val);
743
		analog_val &= ~IXGBE_ATLAS_PDN_TX_REG_EN;
744 745
		hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
		                              analog_val);
746

747 748
		hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
		                             &analog_val);
749
		analog_val &= ~IXGBE_ATLAS_PDN_TX_10G_QL_ALL;
750 751
		hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
		                              analog_val);
752

753 754
		hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
		                             &analog_val);
755
		analog_val &= ~IXGBE_ATLAS_PDN_TX_1G_QL_ALL;
756 757
		hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
		                              analog_val);
758

759 760
		hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
		                             &analog_val);
761
		analog_val &= ~IXGBE_ATLAS_PDN_TX_AN_QL_ALL;
762 763
		hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
		                              analog_val);
764 765 766
	}

	/* Reset PHY */
767 768 769 770
	if (hw->phy.reset_disable == false) {
		/* PHY ops must be identified and initialized prior to reset */

		/* Init PHY and function pointers, perform SFP setup */
771 772
		phy_status = hw->phy.ops.init(hw);
		if (phy_status == IXGBE_ERR_SFP_NOT_SUPPORTED)
773
			goto reset_hw_out;
774 775
		if (phy_status == IXGBE_ERR_SFP_NOT_PRESENT)
			goto mac_reset_top;
776

777
		hw->phy.ops.reset(hw);
778
	}
779

780
mac_reset_top:
781 782 783 784
	/*
	 * Issue global reset to the MAC.  This needs to be a SW reset.
	 * If link reset is used, it might reset the MAC when mng is using it
	 */
A
Alexander Duyck 已提交
785 786
	ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL) | IXGBE_CTRL_RST;
	IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
787 788 789 790 791 792 793 794 795 796 797 798 799 800
	IXGBE_WRITE_FLUSH(hw);

	/* Poll for reset bit to self-clear indicating reset is complete */
	for (i = 0; i < 10; i++) {
		udelay(1);
		ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
		if (!(ctrl & IXGBE_CTRL_RST))
			break;
	}
	if (ctrl & IXGBE_CTRL_RST) {
		status = IXGBE_ERR_RESET_FAILED;
		hw_dbg(hw, "Reset polling failed to complete.\n");
	}

A
Alexander Duyck 已提交
801 802
	msleep(50);

803 804 805
	/*
	 * Double resets are required for recovery from certain error
	 * conditions.  Between resets, it is necessary to stall to allow time
A
Alexander Duyck 已提交
806
	 * for any pending HW events to complete.
807 808 809 810 811 812
	 */
	if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
		hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
		goto mac_reset_top;
	}

813 814 815 816 817
	gheccr = IXGBE_READ_REG(hw, IXGBE_GHECCR);
	gheccr &= ~((1 << 21) | (1 << 18) | (1 << 9) | (1 << 6));
	IXGBE_WRITE_REG(hw, IXGBE_GHECCR, gheccr);

	/*
818 819 820
	 * Store the original AUTOC value if it has not been
	 * stored off yet.  Otherwise restore the stored original
	 * AUTOC value since the reset operation sets back to deaults.
821 822
	 */
	autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
823 824 825 826 827
	if (hw->mac.orig_link_settings_stored == false) {
		hw->mac.orig_autoc = autoc;
		hw->mac.orig_link_settings_stored = true;
	} else if (autoc != hw->mac.orig_autoc) {
		IXGBE_WRITE_REG(hw, IXGBE_AUTOC, hw->mac.orig_autoc);
828 829
	}

830 831 832
	/* Store the permanent mac address */
	hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);

833 834 835 836 837 838
	/*
	 * Store MAC address from RAR0, clear receive address registers, and
	 * clear the multicast table
	 */
	hw->mac.ops.init_rx_addrs(hw);

839
reset_hw_out:
840 841 842
	if (phy_status)
		status = phy_status;

843 844 845
	return status;
}

846 847 848 849 850 851
/**
 *  ixgbe_set_vmdq_82598 - Associate a VMDq set index with a rx address
 *  @hw: pointer to hardware struct
 *  @rar: receive address register index to associate with a VMDq index
 *  @vmdq: VMDq set index
 **/
852
static s32 ixgbe_set_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
853 854
{
	u32 rar_high;
855 856 857 858 859 860 861
	u32 rar_entries = hw->mac.num_rar_entries;

	/* Make sure we are using a valid rar index range */
	if (rar >= rar_entries) {
		hw_dbg(hw, "RAR index %d is out of range.\n", rar);
		return IXGBE_ERR_INVALID_ARGUMENT;
	}
862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880

	rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
	rar_high &= ~IXGBE_RAH_VIND_MASK;
	rar_high |= ((vmdq << IXGBE_RAH_VIND_SHIFT) & IXGBE_RAH_VIND_MASK);
	IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
	return 0;
}

/**
 *  ixgbe_clear_vmdq_82598 - Disassociate a VMDq set index from an rx address
 *  @hw: pointer to hardware struct
 *  @rar: receive address register index to associate with a VMDq index
 *  @vmdq: VMDq clear index (not used in 82598, but elsewhere)
 **/
static s32 ixgbe_clear_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
{
	u32 rar_high;
	u32 rar_entries = hw->mac.num_rar_entries;

881 882 883

	/* Make sure we are using a valid rar index range */
	if (rar >= rar_entries) {
884
		hw_dbg(hw, "RAR index %d is out of range.\n", rar);
885 886 887 888 889 890 891
		return IXGBE_ERR_INVALID_ARGUMENT;
	}

	rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
	if (rar_high & IXGBE_RAH_VIND_MASK) {
		rar_high &= ~IXGBE_RAH_VIND_MASK;
		IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
892 893 894 895 896 897 898 899 900 901 902 903 904 905
	}

	return 0;
}

/**
 *  ixgbe_set_vfta_82598 - Set VLAN filter table
 *  @hw: pointer to hardware structure
 *  @vlan: VLAN id to write to VLAN filter
 *  @vind: VMDq output index that maps queue to VLAN id in VFTA
 *  @vlan_on: boolean flag to turn on/off VLAN in VFTA
 *
 *  Turn on/off specified VLAN in the VLAN filter table.
 **/
906 907
static s32 ixgbe_set_vfta_82598(struct ixgbe_hw *hw, u32 vlan, u32 vind,
				bool vlan_on)
908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961
{
	u32 regindex;
	u32 bitindex;
	u32 bits;
	u32 vftabyte;

	if (vlan > 4095)
		return IXGBE_ERR_PARAM;

	/* Determine 32-bit word position in array */
	regindex = (vlan >> 5) & 0x7F;   /* upper seven bits */

	/* Determine the location of the (VMD) queue index */
	vftabyte =  ((vlan >> 3) & 0x03); /* bits (4:3) indicating byte array */
	bitindex = (vlan & 0x7) << 2;    /* lower 3 bits indicate nibble */

	/* Set the nibble for VMD queue index */
	bits = IXGBE_READ_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex));
	bits &= (~(0x0F << bitindex));
	bits |= (vind << bitindex);
	IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex), bits);

	/* Determine the location of the bit for this VLAN id */
	bitindex = vlan & 0x1F;   /* lower five bits */

	bits = IXGBE_READ_REG(hw, IXGBE_VFTA(regindex));
	if (vlan_on)
		/* Turn on this VLAN id */
		bits |= (1 << bitindex);
	else
		/* Turn off this VLAN id */
		bits &= ~(1 << bitindex);
	IXGBE_WRITE_REG(hw, IXGBE_VFTA(regindex), bits);

	return 0;
}

/**
 *  ixgbe_clear_vfta_82598 - Clear VLAN filter table
 *  @hw: pointer to hardware structure
 *
 *  Clears the VLAN filer table, and the VMDq index associated with the filter
 **/
static s32 ixgbe_clear_vfta_82598(struct ixgbe_hw *hw)
{
	u32 offset;
	u32 vlanbyte;

	for (offset = 0; offset < hw->mac.vft_size; offset++)
		IXGBE_WRITE_REG(hw, IXGBE_VFTA(offset), 0);

	for (vlanbyte = 0; vlanbyte < 4; vlanbyte++)
		for (offset = 0; offset < hw->mac.vft_size; offset++)
			IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vlanbyte, offset),
962
			                0);
963 964 965 966 967 968 969 970 971 972 973 974

	return 0;
}

/**
 *  ixgbe_read_analog_reg8_82598 - Reads 8 bit Atlas analog register
 *  @hw: pointer to hardware structure
 *  @reg: analog register to read
 *  @val: read value
 *
 *  Performs read operation to Atlas analog register specified.
 **/
975
static s32 ixgbe_read_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 *val)
976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996
{
	u32  atlas_ctl;

	IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL,
	                IXGBE_ATLASCTL_WRITE_CMD | (reg << 8));
	IXGBE_WRITE_FLUSH(hw);
	udelay(10);
	atlas_ctl = IXGBE_READ_REG(hw, IXGBE_ATLASCTL);
	*val = (u8)atlas_ctl;

	return 0;
}

/**
 *  ixgbe_write_analog_reg8_82598 - Writes 8 bit Atlas analog register
 *  @hw: pointer to hardware structure
 *  @reg: atlas register to write
 *  @val: value to write
 *
 *  Performs write operation to Atlas analog register specified.
 **/
997
static s32 ixgbe_write_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 val)
998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008
{
	u32  atlas_ctl;

	atlas_ctl = (reg << 8) | val;
	IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL, atlas_ctl);
	IXGBE_WRITE_FLUSH(hw);
	udelay(10);

	return 0;
}

D
Donald Skidmore 已提交
1009
/**
1010
 *  ixgbe_read_i2c_eeprom_82598 - Reads 8 bit word over I2C interface.
D
Donald Skidmore 已提交
1011 1012 1013 1014
 *  @hw: pointer to hardware structure
 *  @byte_offset: EEPROM byte offset to read
 *  @eeprom_data: value read
 *
1015
 *  Performs 8 byte read operation to SFP module's EEPROM over I2C interface.
D
Donald Skidmore 已提交
1016
 **/
1017 1018
static s32 ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
				       u8 *eeprom_data)
D
Donald Skidmore 已提交
1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035
{
	s32 status = 0;
	u16 sfp_addr = 0;
	u16 sfp_data = 0;
	u16 sfp_stat = 0;
	u32 i;

	if (hw->phy.type == ixgbe_phy_nl) {
		/*
		 * phy SDA/SCL registers are at addresses 0xC30A to
		 * 0xC30D.  These registers are used to talk to the SFP+
		 * module's EEPROM through the SDA/SCL (I2C) interface.
		 */
		sfp_addr = (IXGBE_I2C_EEPROM_DEV_ADDR << 8) + byte_offset;
		sfp_addr = (sfp_addr | IXGBE_I2C_EEPROM_READ_MASK);
		hw->phy.ops.write_reg(hw,
		                      IXGBE_MDIO_PMA_PMD_SDA_SCL_ADDR,
1036
		                      MDIO_MMD_PMAPMD,
D
Donald Skidmore 已提交
1037 1038 1039 1040 1041 1042
		                      sfp_addr);

		/* Poll status */
		for (i = 0; i < 100; i++) {
			hw->phy.ops.read_reg(hw,
			                     IXGBE_MDIO_PMA_PMD_SDA_SCL_STAT,
1043
			                     MDIO_MMD_PMAPMD,
D
Donald Skidmore 已提交
1044 1045 1046 1047
			                     &sfp_stat);
			sfp_stat = sfp_stat & IXGBE_I2C_EEPROM_STATUS_MASK;
			if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_IN_PROGRESS)
				break;
1048
			usleep_range(10000, 20000);
D
Donald Skidmore 已提交
1049 1050 1051 1052 1053 1054 1055 1056 1057 1058
		}

		if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_PASS) {
			hw_dbg(hw, "EEPROM read did not pass.\n");
			status = IXGBE_ERR_SFP_NOT_PRESENT;
			goto out;
		}

		/* Read data */
		hw->phy.ops.read_reg(hw, IXGBE_MDIO_PMA_PMD_SDA_SCL_DATA,
1059
		                     MDIO_MMD_PMAPMD, &sfp_data);
D
Donald Skidmore 已提交
1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070

		*eeprom_data = (u8)(sfp_data >> 8);
	} else {
		status = IXGBE_ERR_PHY;
		goto out;
	}

out:
	return status;
}

1071 1072 1073 1074 1075 1076
/**
 *  ixgbe_get_supported_physical_layer_82598 - Returns physical layer type
 *  @hw: pointer to hardware structure
 *
 *  Determines physical layer capabilities of the current configuration.
 **/
1077
static u32 ixgbe_get_supported_physical_layer_82598(struct ixgbe_hw *hw)
1078
{
1079
	u32 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
1080 1081 1082 1083 1084 1085 1086 1087 1088
	u32 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
	u32 pma_pmd_10g = autoc & IXGBE_AUTOC_10G_PMA_PMD_MASK;
	u32 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;
	u16 ext_ability = 0;

	hw->phy.ops.identify(hw);

	/* Copper PHY must be checked before AUTOC LMS to determine correct
	 * physical layer because 10GBase-T PHYs use LMS = KX4/KX */
E
Emil Tantilov 已提交
1089 1090 1091 1092 1093
	switch (hw->phy.type) {
	case ixgbe_phy_tn:
	case ixgbe_phy_cu_unknown:
		hw->phy.ops.read_reg(hw, MDIO_PMA_EXTABLE,
		MDIO_MMD_PMAPMD, &ext_ability);
1094
		if (ext_ability & MDIO_PMA_EXTABLE_10GBT)
1095
			physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_T;
1096
		if (ext_ability & MDIO_PMA_EXTABLE_1000BT)
1097
			physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_T;
1098
		if (ext_ability & MDIO_PMA_EXTABLE_100BTX)
1099 1100
			physical_layer |= IXGBE_PHYSICAL_LAYER_100BASE_TX;
		goto out;
E
Emil Tantilov 已提交
1101 1102
	default:
		break;
1103
	}
1104

1105 1106 1107 1108 1109 1110 1111
	switch (autoc & IXGBE_AUTOC_LMS_MASK) {
	case IXGBE_AUTOC_LMS_1G_AN:
	case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
		if (pma_pmd_1g == IXGBE_AUTOC_1G_KX)
			physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_KX;
		else
			physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_BX;
D
Donald Skidmore 已提交
1112
		break;
1113 1114 1115 1116 1117 1118 1119
	case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
		if (pma_pmd_10g == IXGBE_AUTOC_10G_CX4)
			physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_CX4;
		else if (pma_pmd_10g == IXGBE_AUTOC_10G_KX4)
			physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
		else /* XAUI */
			physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
1120
		break;
1121 1122 1123 1124 1125 1126
	case IXGBE_AUTOC_LMS_KX4_AN:
	case IXGBE_AUTOC_LMS_KX4_AN_1G_AN:
		if (autoc & IXGBE_AUTOC_KX_SUPP)
			physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_KX;
		if (autoc & IXGBE_AUTOC_KX4_SUPP)
			physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
1127
		break;
1128
	default:
1129
		break;
1130 1131 1132
	}

	if (hw->phy.type == ixgbe_phy_nl) {
D
Donald Skidmore 已提交
1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148
		hw->phy.ops.identify_sfp(hw);

		switch (hw->phy.sfp_type) {
		case ixgbe_sfp_type_da_cu:
			physical_layer = IXGBE_PHYSICAL_LAYER_SFP_PLUS_CU;
			break;
		case ixgbe_sfp_type_sr:
			physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_SR;
			break;
		case ixgbe_sfp_type_lr:
			physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_LR;
			break;
		default:
			physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
			break;
		}
1149
	}
1150

1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162
	switch (hw->device_id) {
	case IXGBE_DEV_ID_82598_DA_DUAL_PORT:
		physical_layer = IXGBE_PHYSICAL_LAYER_SFP_PLUS_CU;
		break;
	case IXGBE_DEV_ID_82598AF_DUAL_PORT:
	case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
	case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM:
		physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_SR;
		break;
	case IXGBE_DEV_ID_82598EB_XF_LR:
		physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_LR;
		break;
1163 1164 1165 1166
	default:
		break;
	}

1167
out:
1168 1169 1170
	return physical_layer;
}

1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202
/**
 *  ixgbe_set_lan_id_multi_port_pcie_82598 - Set LAN id for PCIe multiple
 *  port devices.
 *  @hw: pointer to the HW structure
 *
 *  Calls common function and corrects issue with some single port devices
 *  that enable LAN1 but not LAN0.
 **/
static void ixgbe_set_lan_id_multi_port_pcie_82598(struct ixgbe_hw *hw)
{
	struct ixgbe_bus_info *bus = &hw->bus;
	u16 pci_gen = 0;
	u16 pci_ctrl2 = 0;

	ixgbe_set_lan_id_multi_port_pcie(hw);

	/* check if LAN0 is disabled */
	hw->eeprom.ops.read(hw, IXGBE_PCIE_GENERAL_PTR, &pci_gen);
	if ((pci_gen != 0) && (pci_gen != 0xFFFF)) {

		hw->eeprom.ops.read(hw, pci_gen + IXGBE_PCIE_CTRL2, &pci_ctrl2);

		/* if LAN0 is completely disabled force function to 0 */
		if ((pci_ctrl2 & IXGBE_PCIE_CTRL2_LAN_DISABLE) &&
		    !(pci_ctrl2 & IXGBE_PCIE_CTRL2_DISABLE_SELECT) &&
		    !(pci_ctrl2 & IXGBE_PCIE_CTRL2_DUMMY_ENABLE)) {

			bus->func = 0;
		}
	}
}

1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243
/**
 * ixgbe_set_rxpba_82598 - Configure packet buffers
 * @hw: pointer to hardware structure
 * @dcb_config: pointer to ixgbe_dcb_config structure
 *
 * Configure packet buffers.
 */
static void ixgbe_set_rxpba_82598(struct ixgbe_hw *hw, int num_pb, u32 headroom,
				  int strategy)
{
	u32 rxpktsize = IXGBE_RXPBSIZE_64KB;
	u8  i = 0;

	if (!num_pb)
		return;

	/* Setup Rx packet buffer sizes */
	switch (strategy) {
	case PBA_STRATEGY_WEIGHTED:
		/* Setup the first four at 80KB */
		rxpktsize = IXGBE_RXPBSIZE_80KB;
		for (; i < 4; i++)
			IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
		/* Setup the last four at 48KB...don't re-init i */
		rxpktsize = IXGBE_RXPBSIZE_48KB;
		/* Fall Through */
	case PBA_STRATEGY_EQUAL:
	default:
		/* Divide the remaining Rx packet buffer evenly among the TCs */
		for (; i < IXGBE_MAX_PACKET_BUFFERS; i++)
			IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
		break;
	}

	/* Setup Tx packet buffer sizes */
	for (i = 0; i < IXGBE_MAX_PACKET_BUFFERS; i++)
		IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i), IXGBE_TXPBSIZE_40KB);

	return;
}

1244
static struct ixgbe_mac_operations mac_ops_82598 = {
1245 1246
	.init_hw		= &ixgbe_init_hw_generic,
	.reset_hw		= &ixgbe_reset_hw_82598,
1247
	.start_hw		= &ixgbe_start_hw_82598,
1248
	.clear_hw_cntrs		= &ixgbe_clear_hw_cntrs_generic,
1249
	.get_media_type		= &ixgbe_get_media_type_82598,
1250
	.get_supported_physical_layer = &ixgbe_get_supported_physical_layer_82598,
1251
	.enable_rx_dma          = &ixgbe_enable_rx_dma_generic,
1252 1253
	.get_mac_addr		= &ixgbe_get_mac_addr_generic,
	.stop_adapter		= &ixgbe_stop_adapter_generic,
1254
	.get_bus_info           = &ixgbe_get_bus_info_generic,
1255
	.set_lan_id             = &ixgbe_set_lan_id_multi_port_pcie_82598,
1256 1257
	.read_analog_reg8	= &ixgbe_read_analog_reg8_82598,
	.write_analog_reg8	= &ixgbe_write_analog_reg8_82598,
1258
	.setup_link		= &ixgbe_setup_mac_link_82598,
1259
	.set_rxpba		= &ixgbe_set_rxpba_82598,
1260 1261 1262 1263
	.check_link		= &ixgbe_check_mac_link_82598,
	.get_link_capabilities	= &ixgbe_get_link_capabilities_82598,
	.led_on			= &ixgbe_led_on_generic,
	.led_off		= &ixgbe_led_off_generic,
1264 1265
	.blink_led_start	= &ixgbe_blink_led_start_generic,
	.blink_led_stop		= &ixgbe_blink_led_stop_generic,
1266 1267 1268 1269 1270 1271 1272 1273 1274 1275
	.set_rar		= &ixgbe_set_rar_generic,
	.clear_rar		= &ixgbe_clear_rar_generic,
	.set_vmdq		= &ixgbe_set_vmdq_82598,
	.clear_vmdq		= &ixgbe_clear_vmdq_82598,
	.init_rx_addrs		= &ixgbe_init_rx_addrs_generic,
	.update_mc_addr_list	= &ixgbe_update_mc_addr_list_generic,
	.enable_mc		= &ixgbe_enable_mc_generic,
	.disable_mc		= &ixgbe_disable_mc_generic,
	.clear_vfta		= &ixgbe_clear_vfta_82598,
	.set_vfta		= &ixgbe_set_vfta_82598,
1276
	.fc_enable		= &ixgbe_fc_enable_82598,
E
Emil Tantilov 已提交
1277
	.set_fw_drv_ver         = NULL,
1278 1279
	.acquire_swfw_sync      = &ixgbe_acquire_swfw_sync,
	.release_swfw_sync      = &ixgbe_release_swfw_sync,
1280 1281 1282 1283
};

static struct ixgbe_eeprom_operations eeprom_ops_82598 = {
	.init_params		= &ixgbe_init_eeprom_params_generic,
1284
	.read			= &ixgbe_read_eerd_generic,
1285 1286
	.write			= &ixgbe_write_eeprom_generic,
	.write_buffer		= &ixgbe_write_eeprom_buffer_bit_bang_generic,
1287
	.read_buffer		= &ixgbe_read_eerd_buffer_generic,
1288
	.calc_checksum          = &ixgbe_calc_eeprom_checksum_generic,
1289 1290 1291 1292 1293 1294
	.validate_checksum	= &ixgbe_validate_eeprom_checksum_generic,
	.update_checksum	= &ixgbe_update_eeprom_checksum_generic,
};

static struct ixgbe_phy_operations phy_ops_82598 = {
	.identify		= &ixgbe_identify_phy_generic,
D
Donald Skidmore 已提交
1295
	.identify_sfp		= &ixgbe_identify_sfp_module_generic,
1296
	.init			= &ixgbe_init_phy_ops_82598,
1297 1298 1299 1300 1301
	.reset			= &ixgbe_reset_phy_generic,
	.read_reg		= &ixgbe_read_phy_reg_generic,
	.write_reg		= &ixgbe_write_phy_reg_generic,
	.setup_link		= &ixgbe_setup_phy_link_generic,
	.setup_link_speed	= &ixgbe_setup_phy_link_speed_generic,
D
Donald Skidmore 已提交
1302
	.read_i2c_eeprom	= &ixgbe_read_i2c_eeprom_82598,
1303
	.check_overtemp   = &ixgbe_tn_check_overtemp,
1304 1305
};

1306
struct ixgbe_info ixgbe_82598_info = {
1307 1308 1309
	.mac			= ixgbe_mac_82598EB,
	.get_invariants		= &ixgbe_get_invariants_82598,
	.mac_ops		= &mac_ops_82598,
1310 1311
	.eeprom_ops		= &eeprom_ops_82598,
	.phy_ops		= &phy_ops_82598,
1312 1313
};