1 /******************************************************************************
2 SPDX-License-Identifier: BSD-3-Clause
4 Copyright (c) 2001-2017, Intel Corporation
7 Redistribution and use in source and binary forms, with or without
8 modification, are permitted provided that the following conditions are met:
10 1. Redistributions of source code must retain the above copyright notice,
11 this list of conditions and the following disclaimer.
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14 notice, this list of conditions and the following disclaimer in the
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19 this software without specific prior written permission.
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31 POSSIBILITY OF SUCH DAMAGE.
33 ******************************************************************************/
36 #include "ixgbe_type.h"
37 #include "ixgbe_82598.h"
38 #include "ixgbe_api.h"
39 #include "ixgbe_common.h"
40 #include "ixgbe_phy.h"
42 #define IXGBE_82598_MAX_TX_QUEUES 32
43 #define IXGBE_82598_MAX_RX_QUEUES 64
44 #define IXGBE_82598_RAR_ENTRIES 16
45 #define IXGBE_82598_MC_TBL_SIZE 128
46 #define IXGBE_82598_VFT_TBL_SIZE 128
47 #define IXGBE_82598_RX_PB_SIZE 512
49 static s32 ixgbe_get_link_capabilities_82598(struct ixgbe_hw *hw,
50 ixgbe_link_speed *speed,
52 static enum ixgbe_media_type ixgbe_get_media_type_82598(struct ixgbe_hw *hw);
53 static s32 ixgbe_start_mac_link_82598(struct ixgbe_hw *hw,
54 bool autoneg_wait_to_complete);
55 static s32 ixgbe_check_mac_link_82598(struct ixgbe_hw *hw,
56 ixgbe_link_speed *speed, bool *link_up,
57 bool link_up_wait_to_complete);
58 static s32 ixgbe_setup_mac_link_82598(struct ixgbe_hw *hw,
59 ixgbe_link_speed speed,
60 bool autoneg_wait_to_complete);
61 static s32 ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw,
62 ixgbe_link_speed speed,
63 bool autoneg_wait_to_complete);
64 static s32 ixgbe_reset_hw_82598(struct ixgbe_hw *hw);
65 static s32 ixgbe_clear_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq);
66 static s32 ixgbe_clear_vfta_82598(struct ixgbe_hw *hw);
67 static void ixgbe_set_rxpba_82598(struct ixgbe_hw *hw, int num_pb,
68 u32 headroom, int strategy);
69 static s32 ixgbe_read_i2c_sff8472_82598(struct ixgbe_hw *hw, u8 byte_offset,
72 * ixgbe_set_pcie_completion_timeout - set pci-e completion timeout
73 * @hw: pointer to the HW structure
75 * The defaults for 82598 should be in the range of 50us to 50ms,
76 * however the hardware default for these parts is 500us to 1ms which is less
77 * than the 10ms recommended by the pci-e spec. To address this we need to
78 * increase the value to either 10ms to 250ms for capability version 1 config,
79 * or 16ms to 55ms for version 2.
81 void ixgbe_set_pcie_completion_timeout(struct ixgbe_hw *hw)
83 u32 gcr = IXGBE_READ_REG(hw, IXGBE_GCR);
86 /* only take action if timeout value is defaulted to 0 */
87 if (gcr & IXGBE_GCR_CMPL_TMOUT_MASK)
91 * if capababilities version is type 1 we can write the
92 * timeout of 10ms to 250ms through the GCR register
94 if (!(gcr & IXGBE_GCR_CAP_VER2)) {
95 gcr |= IXGBE_GCR_CMPL_TMOUT_10ms;
100 * for version 2 capabilities we need to write the config space
101 * directly in order to set the completion timeout value for
104 pcie_devctl2 = IXGBE_READ_PCIE_WORD(hw, IXGBE_PCI_DEVICE_CONTROL2);
105 pcie_devctl2 |= IXGBE_PCI_DEVICE_CONTROL2_16ms;
106 IXGBE_WRITE_PCIE_WORD(hw, IXGBE_PCI_DEVICE_CONTROL2, pcie_devctl2);
108 /* disable completion timeout resend */
109 gcr &= ~IXGBE_GCR_CMPL_TMOUT_RESEND;
110 IXGBE_WRITE_REG(hw, IXGBE_GCR, gcr);
114 * ixgbe_init_ops_82598 - Inits func ptrs and MAC type
115 * @hw: pointer to hardware structure
117 * Initialize the function pointers and assign the MAC type for 82598.
118 * Does not touch the hardware.
120 s32 ixgbe_init_ops_82598(struct ixgbe_hw *hw)
122 struct ixgbe_mac_info *mac = &hw->mac;
123 struct ixgbe_phy_info *phy = &hw->phy;
126 DEBUGFUNC("ixgbe_init_ops_82598");
128 ret_val = ixgbe_init_phy_ops_generic(hw);
129 ret_val = ixgbe_init_ops_generic(hw);
132 phy->ops.init = ixgbe_init_phy_ops_82598;
135 mac->ops.start_hw = ixgbe_start_hw_82598;
136 mac->ops.enable_relaxed_ordering = ixgbe_enable_relaxed_ordering_82598;
137 mac->ops.reset_hw = ixgbe_reset_hw_82598;
138 mac->ops.get_media_type = ixgbe_get_media_type_82598;
139 mac->ops.get_supported_physical_layer =
140 ixgbe_get_supported_physical_layer_82598;
141 mac->ops.read_analog_reg8 = ixgbe_read_analog_reg8_82598;
142 mac->ops.write_analog_reg8 = ixgbe_write_analog_reg8_82598;
143 mac->ops.set_lan_id = ixgbe_set_lan_id_multi_port_pcie_82598;
144 mac->ops.enable_rx_dma = ixgbe_enable_rx_dma_82598;
146 /* RAR, Multicast, VLAN */
147 mac->ops.set_vmdq = ixgbe_set_vmdq_82598;
148 mac->ops.clear_vmdq = ixgbe_clear_vmdq_82598;
149 mac->ops.set_vfta = ixgbe_set_vfta_82598;
150 mac->ops.set_vlvf = NULL;
151 mac->ops.clear_vfta = ixgbe_clear_vfta_82598;
154 mac->ops.fc_enable = ixgbe_fc_enable_82598;
156 mac->mcft_size = IXGBE_82598_MC_TBL_SIZE;
157 mac->vft_size = IXGBE_82598_VFT_TBL_SIZE;
158 mac->num_rar_entries = IXGBE_82598_RAR_ENTRIES;
159 mac->rx_pb_size = IXGBE_82598_RX_PB_SIZE;
160 mac->max_rx_queues = IXGBE_82598_MAX_RX_QUEUES;
161 mac->max_tx_queues = IXGBE_82598_MAX_TX_QUEUES;
162 mac->max_msix_vectors = ixgbe_get_pcie_msix_count_generic(hw);
165 phy->ops.read_i2c_eeprom = ixgbe_read_i2c_eeprom_82598;
166 phy->ops.read_i2c_sff8472 = ixgbe_read_i2c_sff8472_82598;
169 mac->ops.check_link = ixgbe_check_mac_link_82598;
170 mac->ops.setup_link = ixgbe_setup_mac_link_82598;
171 mac->ops.flap_tx_laser = NULL;
172 mac->ops.get_link_capabilities = ixgbe_get_link_capabilities_82598;
173 mac->ops.setup_rxpba = ixgbe_set_rxpba_82598;
175 /* Manageability interface */
176 mac->ops.set_fw_drv_ver = NULL;
178 mac->ops.get_rtrup2tc = NULL;
184 * ixgbe_init_phy_ops_82598 - PHY/SFP specific init
185 * @hw: pointer to hardware structure
187 * Initialize any function pointers that were not able to be
188 * set during init_shared_code because the PHY/SFP type was
189 * not known. Perform the SFP init if necessary.
192 s32 ixgbe_init_phy_ops_82598(struct ixgbe_hw *hw)
194 struct ixgbe_mac_info *mac = &hw->mac;
195 struct ixgbe_phy_info *phy = &hw->phy;
196 s32 ret_val = IXGBE_SUCCESS;
197 u16 list_offset, data_offset;
199 DEBUGFUNC("ixgbe_init_phy_ops_82598");
201 /* Identify the PHY */
202 phy->ops.identify(hw);
204 /* Overwrite the link function pointers if copper PHY */
205 if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper) {
206 mac->ops.setup_link = ixgbe_setup_copper_link_82598;
207 mac->ops.get_link_capabilities =
208 ixgbe_get_copper_link_capabilities_generic;
211 switch (hw->phy.type) {
213 phy->ops.setup_link = ixgbe_setup_phy_link_tnx;
214 phy->ops.check_link = ixgbe_check_phy_link_tnx;
215 phy->ops.get_firmware_version =
216 ixgbe_get_phy_firmware_version_tnx;
219 phy->ops.reset = ixgbe_reset_phy_nl;
221 /* Call SFP+ identify routine to get the SFP+ module type */
222 ret_val = phy->ops.identify_sfp(hw);
223 if (ret_val != IXGBE_SUCCESS)
225 else if (hw->phy.sfp_type == ixgbe_sfp_type_unknown) {
226 ret_val = IXGBE_ERR_SFP_NOT_SUPPORTED;
230 /* Check to see if SFP+ module is supported */
231 ret_val = ixgbe_get_sfp_init_sequence_offsets(hw,
234 if (ret_val != IXGBE_SUCCESS) {
235 ret_val = IXGBE_ERR_SFP_NOT_SUPPORTED;
248 * ixgbe_start_hw_82598 - Prepare hardware for Tx/Rx
249 * @hw: pointer to hardware structure
251 * Starts the hardware using the generic start_hw function.
252 * Disables relaxed ordering Then set pcie completion timeout
255 s32 ixgbe_start_hw_82598(struct ixgbe_hw *hw)
259 s32 ret_val = IXGBE_SUCCESS;
261 DEBUGFUNC("ixgbe_start_hw_82598");
263 ret_val = ixgbe_start_hw_generic(hw);
267 /* Disable relaxed ordering */
268 for (i = 0; ((i < hw->mac.max_tx_queues) &&
269 (i < IXGBE_DCA_MAX_QUEUES_82598)); i++) {
270 regval = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL(i));
271 regval &= ~IXGBE_DCA_TXCTRL_DESC_WRO_EN;
272 IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL(i), regval);
275 for (i = 0; ((i < hw->mac.max_rx_queues) &&
276 (i < IXGBE_DCA_MAX_QUEUES_82598)); i++) {
277 regval = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i));
278 regval &= ~(IXGBE_DCA_RXCTRL_DATA_WRO_EN |
279 IXGBE_DCA_RXCTRL_HEAD_WRO_EN);
280 IXGBE_WRITE_REG(hw, IXGBE_DCA_RXCTRL(i), regval);
283 /* set the completion timeout for interface */
284 ixgbe_set_pcie_completion_timeout(hw);
290 * ixgbe_get_link_capabilities_82598 - Determines link capabilities
291 * @hw: pointer to hardware structure
292 * @speed: pointer to link speed
293 * @autoneg: boolean auto-negotiation value
295 * Determines the link capabilities by reading the AUTOC register.
297 static s32 ixgbe_get_link_capabilities_82598(struct ixgbe_hw *hw,
298 ixgbe_link_speed *speed,
301 s32 status = IXGBE_SUCCESS;
304 DEBUGFUNC("ixgbe_get_link_capabilities_82598");
307 * Determine link capabilities based on the stored value of AUTOC,
308 * which represents EEPROM defaults. If AUTOC value has not been
309 * stored, use the current register value.
311 if (hw->mac.orig_link_settings_stored)
312 autoc = hw->mac.orig_autoc;
314 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
316 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
317 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
318 *speed = IXGBE_LINK_SPEED_1GB_FULL;
322 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
323 *speed = IXGBE_LINK_SPEED_10GB_FULL;
327 case IXGBE_AUTOC_LMS_1G_AN:
328 *speed = IXGBE_LINK_SPEED_1GB_FULL;
332 case IXGBE_AUTOC_LMS_KX4_AN:
333 case IXGBE_AUTOC_LMS_KX4_AN_1G_AN:
334 *speed = IXGBE_LINK_SPEED_UNKNOWN;
335 if (autoc & IXGBE_AUTOC_KX4_SUPP)
336 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
337 if (autoc & IXGBE_AUTOC_KX_SUPP)
338 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
343 status = IXGBE_ERR_LINK_SETUP;
351 * ixgbe_get_media_type_82598 - Determines media type
352 * @hw: pointer to hardware structure
354 * Returns the media type (fiber, copper, backplane)
356 static enum ixgbe_media_type ixgbe_get_media_type_82598(struct ixgbe_hw *hw)
358 enum ixgbe_media_type media_type;
360 DEBUGFUNC("ixgbe_get_media_type_82598");
362 /* Detect if there is a copper PHY attached. */
363 switch (hw->phy.type) {
364 case ixgbe_phy_cu_unknown:
366 media_type = ixgbe_media_type_copper;
372 /* Media type for I82598 is based on device ID */
373 switch (hw->device_id) {
374 case IXGBE_DEV_ID_82598:
375 case IXGBE_DEV_ID_82598_BX:
376 /* Default device ID is mezzanine card KX/KX4 */
377 media_type = ixgbe_media_type_backplane;
379 case IXGBE_DEV_ID_82598AF_DUAL_PORT:
380 case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
381 case IXGBE_DEV_ID_82598_DA_DUAL_PORT:
382 case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM:
383 case IXGBE_DEV_ID_82598EB_XF_LR:
384 case IXGBE_DEV_ID_82598EB_SFP_LOM:
385 media_type = ixgbe_media_type_fiber;
387 case IXGBE_DEV_ID_82598EB_CX4:
388 case IXGBE_DEV_ID_82598_CX4_DUAL_PORT:
389 media_type = ixgbe_media_type_cx4;
391 case IXGBE_DEV_ID_82598AT:
392 case IXGBE_DEV_ID_82598AT2:
393 media_type = ixgbe_media_type_copper;
396 media_type = ixgbe_media_type_unknown;
404 * ixgbe_fc_enable_82598 - Enable flow control
405 * @hw: pointer to hardware structure
407 * Enable flow control according to the current settings.
409 s32 ixgbe_fc_enable_82598(struct ixgbe_hw *hw)
411 s32 ret_val = IXGBE_SUCCESS;
420 DEBUGFUNC("ixgbe_fc_enable_82598");
422 /* Validate the water mark configuration */
423 if (!hw->fc.pause_time) {
424 ret_val = IXGBE_ERR_INVALID_LINK_SETTINGS;
428 /* Low water mark of zero causes XOFF floods */
429 for (i = 0; i < IXGBE_DCB_MAX_TRAFFIC_CLASS; i++) {
430 if ((hw->fc.current_mode & ixgbe_fc_tx_pause) &&
431 hw->fc.high_water[i]) {
432 if (!hw->fc.low_water[i] ||
433 hw->fc.low_water[i] >= hw->fc.high_water[i]) {
434 DEBUGOUT("Invalid water mark configuration\n");
435 ret_val = IXGBE_ERR_INVALID_LINK_SETTINGS;
442 * On 82598 having Rx FC on causes resets while doing 1G
443 * so if it's on turn it off once we know link_speed. For
444 * more details see 82598 Specification update.
446 hw->mac.ops.check_link(hw, &link_speed, &link_up, FALSE);
447 if (link_up && link_speed == IXGBE_LINK_SPEED_1GB_FULL) {
448 switch (hw->fc.requested_mode) {
450 hw->fc.requested_mode = ixgbe_fc_tx_pause;
452 case ixgbe_fc_rx_pause:
453 hw->fc.requested_mode = ixgbe_fc_none;
461 /* Negotiate the fc mode to use */
462 ixgbe_fc_autoneg(hw);
464 /* Disable any previous flow control settings */
465 fctrl_reg = IXGBE_READ_REG(hw, IXGBE_FCTRL);
466 fctrl_reg &= ~(IXGBE_FCTRL_RFCE | IXGBE_FCTRL_RPFCE);
468 rmcs_reg = IXGBE_READ_REG(hw, IXGBE_RMCS);
469 rmcs_reg &= ~(IXGBE_RMCS_TFCE_PRIORITY | IXGBE_RMCS_TFCE_802_3X);
472 * The possible values of fc.current_mode are:
473 * 0: Flow control is completely disabled
474 * 1: Rx flow control is enabled (we can receive pause frames,
475 * but not send pause frames).
476 * 2: Tx flow control is enabled (we can send pause frames but
477 * we do not support receiving pause frames).
478 * 3: Both Rx and Tx flow control (symmetric) are enabled.
481 switch (hw->fc.current_mode) {
484 * Flow control is disabled by software override or autoneg.
485 * The code below will actually disable it in the HW.
488 case ixgbe_fc_rx_pause:
490 * Rx Flow control is enabled and Tx Flow control is
491 * disabled by software override. Since there really
492 * isn't a way to advertise that we are capable of RX
493 * Pause ONLY, we will advertise that we support both
494 * symmetric and asymmetric Rx PAUSE. Later, we will
495 * disable the adapter's ability to send PAUSE frames.
497 fctrl_reg |= IXGBE_FCTRL_RFCE;
499 case ixgbe_fc_tx_pause:
501 * Tx Flow control is enabled, and Rx Flow control is
502 * disabled by software override.
504 rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
507 /* Flow control (both Rx and Tx) is enabled by SW override. */
508 fctrl_reg |= IXGBE_FCTRL_RFCE;
509 rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
512 DEBUGOUT("Flow control param set incorrectly\n");
513 ret_val = IXGBE_ERR_CONFIG;
518 /* Set 802.3x based flow control settings. */
519 fctrl_reg |= IXGBE_FCTRL_DPF;
520 IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl_reg);
521 IXGBE_WRITE_REG(hw, IXGBE_RMCS, rmcs_reg);
523 /* Set up and enable Rx high/low water mark thresholds, enable XON. */
524 for (i = 0; i < IXGBE_DCB_MAX_TRAFFIC_CLASS; i++) {
525 if ((hw->fc.current_mode & ixgbe_fc_tx_pause) &&
526 hw->fc.high_water[i]) {
527 fcrtl = (hw->fc.low_water[i] << 10) | IXGBE_FCRTL_XONE;
528 fcrth = (hw->fc.high_water[i] << 10) | IXGBE_FCRTH_FCEN;
529 IXGBE_WRITE_REG(hw, IXGBE_FCRTL(i), fcrtl);
530 IXGBE_WRITE_REG(hw, IXGBE_FCRTH(i), fcrth);
532 IXGBE_WRITE_REG(hw, IXGBE_FCRTL(i), 0);
533 IXGBE_WRITE_REG(hw, IXGBE_FCRTH(i), 0);
538 /* Configure pause time (2 TCs per register) */
539 reg = hw->fc.pause_time * 0x00010001;
540 for (i = 0; i < (IXGBE_DCB_MAX_TRAFFIC_CLASS / 2); i++)
541 IXGBE_WRITE_REG(hw, IXGBE_FCTTV(i), reg);
543 /* Configure flow control refresh threshold value */
544 IXGBE_WRITE_REG(hw, IXGBE_FCRTV, hw->fc.pause_time / 2);
551 * ixgbe_start_mac_link_82598 - Configures MAC link settings
552 * @hw: pointer to hardware structure
554 * Configures link settings based on values in the ixgbe_hw struct.
555 * Restarts the link. Performs autonegotiation if needed.
557 static s32 ixgbe_start_mac_link_82598(struct ixgbe_hw *hw,
558 bool autoneg_wait_to_complete)
563 s32 status = IXGBE_SUCCESS;
565 DEBUGFUNC("ixgbe_start_mac_link_82598");
568 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
569 autoc_reg |= IXGBE_AUTOC_AN_RESTART;
570 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
572 /* Only poll for autoneg to complete if specified to do so */
573 if (autoneg_wait_to_complete) {
574 if ((autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
575 IXGBE_AUTOC_LMS_KX4_AN ||
576 (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
577 IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
578 links_reg = 0; /* Just in case Autoneg time = 0 */
579 for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
580 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
581 if (links_reg & IXGBE_LINKS_KX_AN_COMP)
585 if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
586 status = IXGBE_ERR_AUTONEG_NOT_COMPLETE;
587 DEBUGOUT("Autonegotiation did not complete.\n");
592 /* Add delay to filter out noises during initial link setup */
599 * ixgbe_validate_link_ready - Function looks for phy link
600 * @hw: pointer to hardware structure
602 * Function indicates success when phy link is available. If phy is not ready
603 * within 5 seconds of MAC indicating link, the function returns error.
605 static s32 ixgbe_validate_link_ready(struct ixgbe_hw *hw)
610 if (hw->device_id != IXGBE_DEV_ID_82598AT2)
611 return IXGBE_SUCCESS;
614 timeout < IXGBE_VALIDATE_LINK_READY_TIMEOUT; timeout++) {
615 hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_STATUS,
616 IXGBE_MDIO_AUTO_NEG_DEV_TYPE, &an_reg);
618 if ((an_reg & IXGBE_MII_AUTONEG_COMPLETE) &&
619 (an_reg & IXGBE_MII_AUTONEG_LINK_UP))
625 if (timeout == IXGBE_VALIDATE_LINK_READY_TIMEOUT) {
626 DEBUGOUT("Link was indicated but link is down\n");
627 return IXGBE_ERR_LINK_SETUP;
630 return IXGBE_SUCCESS;
634 * ixgbe_check_mac_link_82598 - Get link/speed status
635 * @hw: pointer to hardware structure
636 * @speed: pointer to link speed
637 * @link_up: TRUE is link is up, FALSE otherwise
638 * @link_up_wait_to_complete: bool used to wait for link up or not
640 * Reads the links register to determine if link is up and the current speed
642 static s32 ixgbe_check_mac_link_82598(struct ixgbe_hw *hw,
643 ixgbe_link_speed *speed, bool *link_up,
644 bool link_up_wait_to_complete)
648 u16 link_reg, adapt_comp_reg;
650 DEBUGFUNC("ixgbe_check_mac_link_82598");
653 * SERDES PHY requires us to read link status from undocumented
654 * register 0xC79F. Bit 0 set indicates link is up/ready; clear
655 * indicates link down. OxC00C is read to check that the XAUI lanes
656 * are active. Bit 0 clear indicates active; set indicates inactive.
658 if (hw->phy.type == ixgbe_phy_nl) {
659 hw->phy.ops.read_reg(hw, 0xC79F, IXGBE_TWINAX_DEV, &link_reg);
660 hw->phy.ops.read_reg(hw, 0xC79F, IXGBE_TWINAX_DEV, &link_reg);
661 hw->phy.ops.read_reg(hw, 0xC00C, IXGBE_TWINAX_DEV,
663 if (link_up_wait_to_complete) {
664 for (i = 0; i < hw->mac.max_link_up_time; i++) {
665 if ((link_reg & 1) &&
666 ((adapt_comp_reg & 1) == 0)) {
673 hw->phy.ops.read_reg(hw, 0xC79F,
676 hw->phy.ops.read_reg(hw, 0xC00C,
681 if ((link_reg & 1) && ((adapt_comp_reg & 1) == 0))
687 if (*link_up == FALSE)
691 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
692 if (link_up_wait_to_complete) {
693 for (i = 0; i < hw->mac.max_link_up_time; i++) {
694 if (links_reg & IXGBE_LINKS_UP) {
701 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
704 if (links_reg & IXGBE_LINKS_UP)
710 if (links_reg & IXGBE_LINKS_SPEED)
711 *speed = IXGBE_LINK_SPEED_10GB_FULL;
713 *speed = IXGBE_LINK_SPEED_1GB_FULL;
715 if ((hw->device_id == IXGBE_DEV_ID_82598AT2) && (*link_up == TRUE) &&
716 (ixgbe_validate_link_ready(hw) != IXGBE_SUCCESS))
720 return IXGBE_SUCCESS;
724 * ixgbe_setup_mac_link_82598 - Set MAC link speed
725 * @hw: pointer to hardware structure
726 * @speed: new link speed
727 * @autoneg_wait_to_complete: TRUE when waiting for completion is needed
729 * Set the link speed in the AUTOC register and restarts link.
731 static s32 ixgbe_setup_mac_link_82598(struct ixgbe_hw *hw,
732 ixgbe_link_speed speed,
733 bool autoneg_wait_to_complete)
735 bool autoneg = FALSE;
736 s32 status = IXGBE_SUCCESS;
737 ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN;
738 u32 curr_autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
739 u32 autoc = curr_autoc;
740 u32 link_mode = autoc & IXGBE_AUTOC_LMS_MASK;
742 DEBUGFUNC("ixgbe_setup_mac_link_82598");
744 /* Check to see if speed passed in is supported. */
745 ixgbe_get_link_capabilities(hw, &link_capabilities, &autoneg);
746 speed &= link_capabilities;
748 if (speed == IXGBE_LINK_SPEED_UNKNOWN)
749 status = IXGBE_ERR_LINK_SETUP;
751 /* Set KX4/KX support according to speed requested */
752 else if (link_mode == IXGBE_AUTOC_LMS_KX4_AN ||
753 link_mode == IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
754 autoc &= ~IXGBE_AUTOC_KX4_KX_SUPP_MASK;
755 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
756 autoc |= IXGBE_AUTOC_KX4_SUPP;
757 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
758 autoc |= IXGBE_AUTOC_KX_SUPP;
759 if (autoc != curr_autoc)
760 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc);
763 if (status == IXGBE_SUCCESS) {
765 * Setup and restart the link based on the new values in
766 * ixgbe_hw This will write the AUTOC register based on the new
769 status = ixgbe_start_mac_link_82598(hw,
770 autoneg_wait_to_complete);
778 * ixgbe_setup_copper_link_82598 - Set the PHY autoneg advertised field
779 * @hw: pointer to hardware structure
780 * @speed: new link speed
781 * @autoneg_wait_to_complete: TRUE if waiting is needed to complete
783 * Sets the link speed in the AUTOC register in the MAC and restarts link.
785 static s32 ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw,
786 ixgbe_link_speed speed,
787 bool autoneg_wait_to_complete)
791 DEBUGFUNC("ixgbe_setup_copper_link_82598");
793 /* Setup the PHY according to input speed */
794 status = hw->phy.ops.setup_link_speed(hw, speed,
795 autoneg_wait_to_complete);
797 ixgbe_start_mac_link_82598(hw, autoneg_wait_to_complete);
803 * ixgbe_reset_hw_82598 - Performs hardware reset
804 * @hw: pointer to hardware structure
806 * Resets the hardware by resetting the transmit and receive units, masks and
807 * clears all interrupts, performing a PHY reset, and performing a link (MAC)
810 static s32 ixgbe_reset_hw_82598(struct ixgbe_hw *hw)
812 s32 status = IXGBE_SUCCESS;
813 s32 phy_status = IXGBE_SUCCESS;
820 DEBUGFUNC("ixgbe_reset_hw_82598");
822 /* Call adapter stop to disable tx/rx and clear interrupts */
823 status = hw->mac.ops.stop_adapter(hw);
824 if (status != IXGBE_SUCCESS)
828 * Power up the Atlas Tx lanes if they are currently powered down.
829 * Atlas Tx lanes are powered down for MAC loopback tests, but
830 * they are not automatically restored on reset.
832 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK, &analog_val);
833 if (analog_val & IXGBE_ATLAS_PDN_TX_REG_EN) {
834 /* Enable Tx Atlas so packets can be transmitted again */
835 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
837 analog_val &= ~IXGBE_ATLAS_PDN_TX_REG_EN;
838 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
841 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
843 analog_val &= ~IXGBE_ATLAS_PDN_TX_10G_QL_ALL;
844 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
847 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
849 analog_val &= ~IXGBE_ATLAS_PDN_TX_1G_QL_ALL;
850 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
853 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
855 analog_val &= ~IXGBE_ATLAS_PDN_TX_AN_QL_ALL;
856 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
861 if (hw->phy.reset_disable == FALSE) {
862 /* PHY ops must be identified and initialized prior to reset */
864 /* Init PHY and function pointers, perform SFP setup */
865 phy_status = hw->phy.ops.init(hw);
866 if (phy_status == IXGBE_ERR_SFP_NOT_SUPPORTED)
868 if (phy_status == IXGBE_ERR_SFP_NOT_PRESENT)
871 hw->phy.ops.reset(hw);
876 * Issue global reset to the MAC. This needs to be a SW reset.
877 * If link reset is used, it might reset the MAC when mng is using it
879 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL) | IXGBE_CTRL_RST;
880 IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
881 IXGBE_WRITE_FLUSH(hw);
883 /* Poll for reset bit to self-clear indicating reset is complete */
884 for (i = 0; i < 10; i++) {
886 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
887 if (!(ctrl & IXGBE_CTRL_RST))
890 if (ctrl & IXGBE_CTRL_RST) {
891 status = IXGBE_ERR_RESET_FAILED;
892 DEBUGOUT("Reset polling failed to complete.\n");
898 * Double resets are required for recovery from certain error
899 * conditions. Between resets, it is necessary to stall to allow time
900 * for any pending HW events to complete.
902 if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
903 hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
907 gheccr = IXGBE_READ_REG(hw, IXGBE_GHECCR);
908 gheccr &= ~((1 << 21) | (1 << 18) | (1 << 9) | (1 << 6));
909 IXGBE_WRITE_REG(hw, IXGBE_GHECCR, gheccr);
912 * Store the original AUTOC value if it has not been
913 * stored off yet. Otherwise restore the stored original
914 * AUTOC value since the reset operation sets back to deaults.
916 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
917 if (hw->mac.orig_link_settings_stored == FALSE) {
918 hw->mac.orig_autoc = autoc;
919 hw->mac.orig_link_settings_stored = TRUE;
920 } else if (autoc != hw->mac.orig_autoc) {
921 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, hw->mac.orig_autoc);
924 /* Store the permanent mac address */
925 hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
928 * Store MAC address from RAR0, clear receive address registers, and
929 * clear the multicast table
931 hw->mac.ops.init_rx_addrs(hw);
934 if (phy_status != IXGBE_SUCCESS)
941 * ixgbe_set_vmdq_82598 - Associate a VMDq set index with a rx address
942 * @hw: pointer to hardware struct
943 * @rar: receive address register index to associate with a VMDq index
944 * @vmdq: VMDq set index
946 s32 ixgbe_set_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
949 u32 rar_entries = hw->mac.num_rar_entries;
951 DEBUGFUNC("ixgbe_set_vmdq_82598");
953 /* Make sure we are using a valid rar index range */
954 if (rar >= rar_entries) {
955 DEBUGOUT1("RAR index %d is out of range.\n", rar);
956 return IXGBE_ERR_INVALID_ARGUMENT;
959 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
960 rar_high &= ~IXGBE_RAH_VIND_MASK;
961 rar_high |= ((vmdq << IXGBE_RAH_VIND_SHIFT) & IXGBE_RAH_VIND_MASK);
962 IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
963 return IXGBE_SUCCESS;
967 * ixgbe_clear_vmdq_82598 - Disassociate a VMDq set index from an rx address
968 * @hw: pointer to hardware struct
969 * @rar: receive address register index to associate with a VMDq index
970 * @vmdq: VMDq clear index (not used in 82598, but elsewhere)
972 static s32 ixgbe_clear_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
975 u32 rar_entries = hw->mac.num_rar_entries;
977 UNREFERENCED_1PARAMETER(vmdq);
979 /* Make sure we are using a valid rar index range */
980 if (rar >= rar_entries) {
981 DEBUGOUT1("RAR index %d is out of range.\n", rar);
982 return IXGBE_ERR_INVALID_ARGUMENT;
985 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
986 if (rar_high & IXGBE_RAH_VIND_MASK) {
987 rar_high &= ~IXGBE_RAH_VIND_MASK;
988 IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
991 return IXGBE_SUCCESS;
995 * ixgbe_set_vfta_82598 - Set VLAN filter table
996 * @hw: pointer to hardware structure
997 * @vlan: VLAN id to write to VLAN filter
998 * @vind: VMDq output index that maps queue to VLAN id in VFTA
999 * @vlan_on: boolean flag to turn on/off VLAN in VFTA
1000 * @vlvf_bypass: boolean flag - unused
1002 * Turn on/off specified VLAN in the VLAN filter table.
1004 s32 ixgbe_set_vfta_82598(struct ixgbe_hw *hw, u32 vlan, u32 vind,
1005 bool vlan_on, bool vlvf_bypass)
1012 UNREFERENCED_1PARAMETER(vlvf_bypass);
1014 DEBUGFUNC("ixgbe_set_vfta_82598");
1017 return IXGBE_ERR_PARAM;
1019 /* Determine 32-bit word position in array */
1020 regindex = (vlan >> 5) & 0x7F; /* upper seven bits */
1022 /* Determine the location of the (VMD) queue index */
1023 vftabyte = ((vlan >> 3) & 0x03); /* bits (4:3) indicating byte array */
1024 bitindex = (vlan & 0x7) << 2; /* lower 3 bits indicate nibble */
1026 /* Set the nibble for VMD queue index */
1027 bits = IXGBE_READ_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex));
1028 bits &= (~(0x0F << bitindex));
1029 bits |= (vind << bitindex);
1030 IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex), bits);
1032 /* Determine the location of the bit for this VLAN id */
1033 bitindex = vlan & 0x1F; /* lower five bits */
1035 bits = IXGBE_READ_REG(hw, IXGBE_VFTA(regindex));
1037 /* Turn on this VLAN id */
1038 bits |= (1 << bitindex);
1040 /* Turn off this VLAN id */
1041 bits &= ~(1 << bitindex);
1042 IXGBE_WRITE_REG(hw, IXGBE_VFTA(regindex), bits);
1044 return IXGBE_SUCCESS;
1048 * ixgbe_clear_vfta_82598 - Clear VLAN filter table
1049 * @hw: pointer to hardware structure
1051 * Clears the VLAN filer table, and the VMDq index associated with the filter
1053 static s32 ixgbe_clear_vfta_82598(struct ixgbe_hw *hw)
1058 DEBUGFUNC("ixgbe_clear_vfta_82598");
1060 for (offset = 0; offset < hw->mac.vft_size; offset++)
1061 IXGBE_WRITE_REG(hw, IXGBE_VFTA(offset), 0);
1063 for (vlanbyte = 0; vlanbyte < 4; vlanbyte++)
1064 for (offset = 0; offset < hw->mac.vft_size; offset++)
1065 IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vlanbyte, offset),
1068 return IXGBE_SUCCESS;
1072 * ixgbe_read_analog_reg8_82598 - Reads 8 bit Atlas analog register
1073 * @hw: pointer to hardware structure
1074 * @reg: analog register to read
1077 * Performs read operation to Atlas analog register specified.
1079 s32 ixgbe_read_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 *val)
1083 DEBUGFUNC("ixgbe_read_analog_reg8_82598");
1085 IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL,
1086 IXGBE_ATLASCTL_WRITE_CMD | (reg << 8));
1087 IXGBE_WRITE_FLUSH(hw);
1089 atlas_ctl = IXGBE_READ_REG(hw, IXGBE_ATLASCTL);
1090 *val = (u8)atlas_ctl;
1092 return IXGBE_SUCCESS;
1096 * ixgbe_write_analog_reg8_82598 - Writes 8 bit Atlas analog register
1097 * @hw: pointer to hardware structure
1098 * @reg: atlas register to write
1099 * @val: value to write
1101 * Performs write operation to Atlas analog register specified.
1103 s32 ixgbe_write_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 val)
1107 DEBUGFUNC("ixgbe_write_analog_reg8_82598");
1109 atlas_ctl = (reg << 8) | val;
1110 IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL, atlas_ctl);
1111 IXGBE_WRITE_FLUSH(hw);
1114 return IXGBE_SUCCESS;
1118 * ixgbe_read_i2c_phy_82598 - Reads 8 bit word over I2C interface.
1119 * @hw: pointer to hardware structure
1120 * @dev_addr: address to read from
1121 * @byte_offset: byte offset to read from dev_addr
1122 * @eeprom_data: value read
1124 * Performs 8 byte read operation to SFP module's EEPROM over I2C interface.
1126 static s32 ixgbe_read_i2c_phy_82598(struct ixgbe_hw *hw, u8 dev_addr,
1127 u8 byte_offset, u8 *eeprom_data)
1129 s32 status = IXGBE_SUCCESS;
1136 DEBUGFUNC("ixgbe_read_i2c_phy_82598");
1138 if (IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_LAN_ID_1)
1139 gssr = IXGBE_GSSR_PHY1_SM;
1141 gssr = IXGBE_GSSR_PHY0_SM;
1143 if (hw->mac.ops.acquire_swfw_sync(hw, gssr) != IXGBE_SUCCESS)
1144 return IXGBE_ERR_SWFW_SYNC;
1146 if (hw->phy.type == ixgbe_phy_nl) {
1148 * NetLogic phy SDA/SCL registers are at addresses 0xC30A to
1149 * 0xC30D. These registers are used to talk to the SFP+
1150 * module's EEPROM through the SDA/SCL (I2C) interface.
1152 sfp_addr = (dev_addr << 8) + byte_offset;
1153 sfp_addr = (sfp_addr | IXGBE_I2C_EEPROM_READ_MASK);
1154 hw->phy.ops.write_reg_mdi(hw,
1155 IXGBE_MDIO_PMA_PMD_SDA_SCL_ADDR,
1156 IXGBE_MDIO_PMA_PMD_DEV_TYPE,
1160 for (i = 0; i < 100; i++) {
1161 hw->phy.ops.read_reg_mdi(hw,
1162 IXGBE_MDIO_PMA_PMD_SDA_SCL_STAT,
1163 IXGBE_MDIO_PMA_PMD_DEV_TYPE,
1165 sfp_stat = sfp_stat & IXGBE_I2C_EEPROM_STATUS_MASK;
1166 if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_IN_PROGRESS)
1171 if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_PASS) {
1172 DEBUGOUT("EEPROM read did not pass.\n");
1173 status = IXGBE_ERR_SFP_NOT_PRESENT;
1178 hw->phy.ops.read_reg_mdi(hw, IXGBE_MDIO_PMA_PMD_SDA_SCL_DATA,
1179 IXGBE_MDIO_PMA_PMD_DEV_TYPE, &sfp_data);
1181 *eeprom_data = (u8)(sfp_data >> 8);
1183 status = IXGBE_ERR_PHY;
1187 hw->mac.ops.release_swfw_sync(hw, gssr);
1192 * ixgbe_read_i2c_eeprom_82598 - Reads 8 bit word over I2C interface.
1193 * @hw: pointer to hardware structure
1194 * @byte_offset: EEPROM byte offset to read
1195 * @eeprom_data: value read
1197 * Performs 8 byte read operation to SFP module's EEPROM over I2C interface.
1199 s32 ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
1202 return ixgbe_read_i2c_phy_82598(hw, IXGBE_I2C_EEPROM_DEV_ADDR,
1203 byte_offset, eeprom_data);
1207 * ixgbe_read_i2c_sff8472_82598 - Reads 8 bit word over I2C interface.
1208 * @hw: pointer to hardware structure
1209 * @byte_offset: byte offset at address 0xA2
1210 * @eeprom_data: value read
1212 * Performs 8 byte read operation to SFP module's SFF-8472 data over I2C
1214 static s32 ixgbe_read_i2c_sff8472_82598(struct ixgbe_hw *hw, u8 byte_offset,
1217 return ixgbe_read_i2c_phy_82598(hw, IXGBE_I2C_EEPROM_DEV_ADDR2,
1218 byte_offset, sff8472_data);
1222 * ixgbe_get_supported_physical_layer_82598 - Returns physical layer type
1223 * @hw: pointer to hardware structure
1225 * Determines physical layer capabilities of the current configuration.
1227 u64 ixgbe_get_supported_physical_layer_82598(struct ixgbe_hw *hw)
1229 u64 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
1230 u32 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
1231 u32 pma_pmd_10g = autoc & IXGBE_AUTOC_10G_PMA_PMD_MASK;
1232 u32 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;
1233 u16 ext_ability = 0;
1235 DEBUGFUNC("ixgbe_get_supported_physical_layer_82598");
1237 hw->phy.ops.identify(hw);
1239 /* Copper PHY must be checked before AUTOC LMS to determine correct
1240 * physical layer because 10GBase-T PHYs use LMS = KX4/KX */
1241 switch (hw->phy.type) {
1243 case ixgbe_phy_cu_unknown:
1244 hw->phy.ops.read_reg(hw, IXGBE_MDIO_PHY_EXT_ABILITY,
1245 IXGBE_MDIO_PMA_PMD_DEV_TYPE, &ext_ability);
1246 if (ext_ability & IXGBE_MDIO_PHY_10GBASET_ABILITY)
1247 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_T;
1248 if (ext_ability & IXGBE_MDIO_PHY_1000BASET_ABILITY)
1249 physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_T;
1250 if (ext_ability & IXGBE_MDIO_PHY_100BASETX_ABILITY)
1251 physical_layer |= IXGBE_PHYSICAL_LAYER_100BASE_TX;
1257 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
1258 case IXGBE_AUTOC_LMS_1G_AN:
1259 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
1260 if (pma_pmd_1g == IXGBE_AUTOC_1G_KX)
1261 physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_KX;
1263 physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_BX;
1265 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
1266 if (pma_pmd_10g == IXGBE_AUTOC_10G_CX4)
1267 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_CX4;
1268 else if (pma_pmd_10g == IXGBE_AUTOC_10G_KX4)
1269 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
1271 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
1273 case IXGBE_AUTOC_LMS_KX4_AN:
1274 case IXGBE_AUTOC_LMS_KX4_AN_1G_AN:
1275 if (autoc & IXGBE_AUTOC_KX_SUPP)
1276 physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_KX;
1277 if (autoc & IXGBE_AUTOC_KX4_SUPP)
1278 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
1284 if (hw->phy.type == ixgbe_phy_nl) {
1285 hw->phy.ops.identify_sfp(hw);
1287 switch (hw->phy.sfp_type) {
1288 case ixgbe_sfp_type_da_cu:
1289 physical_layer = IXGBE_PHYSICAL_LAYER_SFP_PLUS_CU;
1291 case ixgbe_sfp_type_sr:
1292 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_SR;
1294 case ixgbe_sfp_type_lr:
1295 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_LR;
1298 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
1303 switch (hw->device_id) {
1304 case IXGBE_DEV_ID_82598_DA_DUAL_PORT:
1305 physical_layer = IXGBE_PHYSICAL_LAYER_SFP_PLUS_CU;
1307 case IXGBE_DEV_ID_82598AF_DUAL_PORT:
1308 case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
1309 case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM:
1310 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_SR;
1312 case IXGBE_DEV_ID_82598EB_XF_LR:
1313 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_LR;
1320 return physical_layer;
1324 * ixgbe_set_lan_id_multi_port_pcie_82598 - Set LAN id for PCIe multiple
1326 * @hw: pointer to the HW structure
1328 * Calls common function and corrects issue with some single port devices
1329 * that enable LAN1 but not LAN0.
1331 void ixgbe_set_lan_id_multi_port_pcie_82598(struct ixgbe_hw *hw)
1333 struct ixgbe_bus_info *bus = &hw->bus;
1337 DEBUGFUNC("ixgbe_set_lan_id_multi_port_pcie_82598");
1339 ixgbe_set_lan_id_multi_port_pcie(hw);
1341 /* check if LAN0 is disabled */
1342 hw->eeprom.ops.read(hw, IXGBE_PCIE_GENERAL_PTR, &pci_gen);
1343 if ((pci_gen != 0) && (pci_gen != 0xFFFF)) {
1345 hw->eeprom.ops.read(hw, pci_gen + IXGBE_PCIE_CTRL2, &pci_ctrl2);
1347 /* if LAN0 is completely disabled force function to 0 */
1348 if ((pci_ctrl2 & IXGBE_PCIE_CTRL2_LAN_DISABLE) &&
1349 !(pci_ctrl2 & IXGBE_PCIE_CTRL2_DISABLE_SELECT) &&
1350 !(pci_ctrl2 & IXGBE_PCIE_CTRL2_DUMMY_ENABLE)) {
1358 * ixgbe_enable_relaxed_ordering_82598 - enable relaxed ordering
1359 * @hw: pointer to hardware structure
1362 void ixgbe_enable_relaxed_ordering_82598(struct ixgbe_hw *hw)
1367 DEBUGFUNC("ixgbe_enable_relaxed_ordering_82598");
1369 /* Enable relaxed ordering */
1370 for (i = 0; ((i < hw->mac.max_tx_queues) &&
1371 (i < IXGBE_DCA_MAX_QUEUES_82598)); i++) {
1372 regval = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL(i));
1373 regval |= IXGBE_DCA_TXCTRL_DESC_WRO_EN;
1374 IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL(i), regval);
1377 for (i = 0; ((i < hw->mac.max_rx_queues) &&
1378 (i < IXGBE_DCA_MAX_QUEUES_82598)); i++) {
1379 regval = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i));
1380 regval |= IXGBE_DCA_RXCTRL_DATA_WRO_EN |
1381 IXGBE_DCA_RXCTRL_HEAD_WRO_EN;
1382 IXGBE_WRITE_REG(hw, IXGBE_DCA_RXCTRL(i), regval);
1388 * ixgbe_set_rxpba_82598 - Initialize RX packet buffer
1389 * @hw: pointer to hardware structure
1390 * @num_pb: number of packet buffers to allocate
1391 * @headroom: reserve n KB of headroom
1392 * @strategy: packet buffer allocation strategy
1394 static void ixgbe_set_rxpba_82598(struct ixgbe_hw *hw, int num_pb,
1395 u32 headroom, int strategy)
1397 u32 rxpktsize = IXGBE_RXPBSIZE_64KB;
1399 UNREFERENCED_1PARAMETER(headroom);
1404 /* Setup Rx packet buffer sizes */
1406 case PBA_STRATEGY_WEIGHTED:
1407 /* Setup the first four at 80KB */
1408 rxpktsize = IXGBE_RXPBSIZE_80KB;
1410 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
1411 /* Setup the last four at 48KB...don't re-init i */
1412 rxpktsize = IXGBE_RXPBSIZE_48KB;
1414 case PBA_STRATEGY_EQUAL:
1416 /* Divide the remaining Rx packet buffer evenly among the TCs */
1417 for (; i < IXGBE_MAX_PACKET_BUFFERS; i++)
1418 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
1422 /* Setup Tx packet buffer sizes */
1423 for (i = 0; i < IXGBE_MAX_PACKET_BUFFERS; i++)
1424 IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i), IXGBE_TXPBSIZE_40KB);
1428 * ixgbe_enable_rx_dma_82598 - Enable the Rx DMA unit
1429 * @hw: pointer to hardware structure
1430 * @regval: register value to write to RXCTRL
1432 * Enables the Rx DMA unit
1434 s32 ixgbe_enable_rx_dma_82598(struct ixgbe_hw *hw, u32 regval)
1436 DEBUGFUNC("ixgbe_enable_rx_dma_82598");
1438 IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, regval);
1440 return IXGBE_SUCCESS;