1 /*******************************************************************************
3 Copyright (c) 2001-2012, Intel Corporation
6 Redistribution and use in source and binary forms, with or without
7 modification, are permitted provided that the following conditions are met:
9 1. Redistributions of source code must retain the above copyright notice,
10 this list of conditions and the following disclaimer.
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13 notice, this list of conditions and the following disclaimer in the
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16 3. Neither the name of the Intel Corporation nor the names of its
17 contributors may be used to endorse or promote products derived from
18 this software without specific prior written permission.
20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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30 POSSIBILITY OF SUCH DAMAGE.
32 ***************************************************************************/
34 #include "ixgbe_type.h"
35 #include "ixgbe_82598.h"
36 #include "ixgbe_api.h"
37 #include "ixgbe_common.h"
38 #include "ixgbe_phy.h"
39 #ident "$Id: ixgbe_82598.c,v 1.194 2012/03/28 00:54:08 jtkirshe Exp $"
41 #define IXGBE_82598_MAX_TX_QUEUES 32
42 #define IXGBE_82598_MAX_RX_QUEUES 64
43 #define IXGBE_82598_RAR_ENTRIES 16
44 #define IXGBE_82598_MC_TBL_SIZE 128
45 #define IXGBE_82598_VFT_TBL_SIZE 128
46 #define IXGBE_82598_RX_PB_SIZE 512
48 STATIC s32 ixgbe_get_link_capabilities_82598(struct ixgbe_hw *hw,
49 ixgbe_link_speed *speed,
51 STATIC enum ixgbe_media_type ixgbe_get_media_type_82598(struct ixgbe_hw *hw);
52 STATIC s32 ixgbe_start_mac_link_82598(struct ixgbe_hw *hw,
53 bool autoneg_wait_to_complete);
54 STATIC s32 ixgbe_check_mac_link_82598(struct ixgbe_hw *hw,
55 ixgbe_link_speed *speed, bool *link_up,
56 bool link_up_wait_to_complete);
57 STATIC s32 ixgbe_setup_mac_link_82598(struct ixgbe_hw *hw,
58 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,
64 bool autoneg_wait_to_complete);
65 STATIC s32 ixgbe_reset_hw_82598(struct ixgbe_hw *hw);
66 STATIC s32 ixgbe_clear_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq);
67 STATIC s32 ixgbe_clear_vfta_82598(struct ixgbe_hw *hw);
68 STATIC void ixgbe_set_rxpba_82598(struct ixgbe_hw *hw, int num_pb,
69 u32 headroom, int strategy);
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;
145 /* RAR, Multicast, VLAN */
146 mac->ops.set_vmdq = &ixgbe_set_vmdq_82598;
147 mac->ops.clear_vmdq = &ixgbe_clear_vmdq_82598;
148 mac->ops.set_vfta = &ixgbe_set_vfta_82598;
149 mac->ops.set_vlvf = NULL;
150 mac->ops.clear_vfta = &ixgbe_clear_vfta_82598;
153 mac->ops.fc_enable = &ixgbe_fc_enable_82598;
155 mac->mcft_size = IXGBE_82598_MC_TBL_SIZE;
156 mac->vft_size = IXGBE_82598_VFT_TBL_SIZE;
157 mac->num_rar_entries = IXGBE_82598_RAR_ENTRIES;
158 mac->rx_pb_size = IXGBE_82598_RX_PB_SIZE;
159 mac->max_rx_queues = IXGBE_82598_MAX_RX_QUEUES;
160 mac->max_tx_queues = IXGBE_82598_MAX_TX_QUEUES;
161 mac->max_msix_vectors = ixgbe_get_pcie_msix_count_generic(hw);
164 phy->ops.read_i2c_eeprom = &ixgbe_read_i2c_eeprom_82598;
167 mac->ops.check_link = &ixgbe_check_mac_link_82598;
168 mac->ops.setup_link = &ixgbe_setup_mac_link_82598;
169 mac->ops.flap_tx_laser = NULL;
170 mac->ops.get_link_capabilities = &ixgbe_get_link_capabilities_82598;
171 mac->ops.setup_rxpba = &ixgbe_set_rxpba_82598;
173 /* Manageability interface */
174 mac->ops.set_fw_drv_ver = NULL;
180 * ixgbe_init_phy_ops_82598 - PHY/SFP specific init
181 * @hw: pointer to hardware structure
183 * Initialize any function pointers that were not able to be
184 * set during init_shared_code because the PHY/SFP type was
185 * not known. Perform the SFP init if necessary.
188 s32 ixgbe_init_phy_ops_82598(struct ixgbe_hw *hw)
190 struct ixgbe_mac_info *mac = &hw->mac;
191 struct ixgbe_phy_info *phy = &hw->phy;
192 s32 ret_val = IXGBE_SUCCESS;
193 u16 list_offset, data_offset;
195 DEBUGFUNC("ixgbe_init_phy_ops_82598");
197 /* Identify the PHY */
198 phy->ops.identify(hw);
200 /* Overwrite the link function pointers if copper PHY */
201 if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper) {
202 mac->ops.setup_link = &ixgbe_setup_copper_link_82598;
203 mac->ops.get_link_capabilities =
204 &ixgbe_get_copper_link_capabilities_generic;
207 switch (hw->phy.type) {
209 phy->ops.setup_link = &ixgbe_setup_phy_link_tnx;
210 phy->ops.check_link = &ixgbe_check_phy_link_tnx;
211 phy->ops.get_firmware_version =
212 &ixgbe_get_phy_firmware_version_tnx;
215 phy->ops.reset = &ixgbe_reset_phy_nl;
217 /* Call SFP+ identify routine to get the SFP+ module type */
218 ret_val = phy->ops.identify_sfp(hw);
219 if (ret_val != IXGBE_SUCCESS)
221 else if (hw->phy.sfp_type == ixgbe_sfp_type_unknown) {
222 ret_val = IXGBE_ERR_SFP_NOT_SUPPORTED;
226 /* Check to see if SFP+ module is supported */
227 ret_val = ixgbe_get_sfp_init_sequence_offsets(hw,
230 if (ret_val != IXGBE_SUCCESS) {
231 ret_val = IXGBE_ERR_SFP_NOT_SUPPORTED;
244 * ixgbe_start_hw_82598 - Prepare hardware for Tx/Rx
245 * @hw: pointer to hardware structure
247 * Starts the hardware using the generic start_hw function.
248 * Disables relaxed ordering Then set pcie completion timeout
251 s32 ixgbe_start_hw_82598(struct ixgbe_hw *hw)
255 s32 ret_val = IXGBE_SUCCESS;
257 DEBUGFUNC("ixgbe_start_hw_82598");
259 ret_val = ixgbe_start_hw_generic(hw);
261 /* Disable relaxed ordering */
262 for (i = 0; ((i < hw->mac.max_tx_queues) &&
263 (i < IXGBE_DCA_MAX_QUEUES_82598)); i++) {
264 regval = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL(i));
265 regval &= ~IXGBE_DCA_TXCTRL_DESC_WRO_EN;
266 IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL(i), regval);
269 for (i = 0; ((i < hw->mac.max_rx_queues) &&
270 (i < IXGBE_DCA_MAX_QUEUES_82598)); i++) {
271 regval = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i));
272 regval &= ~(IXGBE_DCA_RXCTRL_DATA_WRO_EN |
273 IXGBE_DCA_RXCTRL_HEAD_WRO_EN);
274 IXGBE_WRITE_REG(hw, IXGBE_DCA_RXCTRL(i), regval);
277 /* set the completion timeout for interface */
278 if (ret_val == IXGBE_SUCCESS)
279 ixgbe_set_pcie_completion_timeout(hw);
285 * ixgbe_get_link_capabilities_82598 - Determines link capabilities
286 * @hw: pointer to hardware structure
287 * @speed: pointer to link speed
288 * @autoneg: boolean auto-negotiation value
290 * Determines the link capabilities by reading the AUTOC register.
292 STATIC s32 ixgbe_get_link_capabilities_82598(struct ixgbe_hw *hw,
293 ixgbe_link_speed *speed,
296 s32 status = IXGBE_SUCCESS;
299 DEBUGFUNC("ixgbe_get_link_capabilities_82598");
302 * Determine link capabilities based on the stored value of AUTOC,
303 * which represents EEPROM defaults. If AUTOC value has not been
304 * stored, use the current register value.
306 if (hw->mac.orig_link_settings_stored)
307 autoc = hw->mac.orig_autoc;
309 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
311 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
312 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
313 *speed = IXGBE_LINK_SPEED_1GB_FULL;
317 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
318 *speed = IXGBE_LINK_SPEED_10GB_FULL;
322 case IXGBE_AUTOC_LMS_1G_AN:
323 *speed = IXGBE_LINK_SPEED_1GB_FULL;
327 case IXGBE_AUTOC_LMS_KX4_AN:
328 case IXGBE_AUTOC_LMS_KX4_AN_1G_AN:
329 *speed = IXGBE_LINK_SPEED_UNKNOWN;
330 if (autoc & IXGBE_AUTOC_KX4_SUPP)
331 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
332 if (autoc & IXGBE_AUTOC_KX_SUPP)
333 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
338 status = IXGBE_ERR_LINK_SETUP;
346 * ixgbe_get_media_type_82598 - Determines media type
347 * @hw: pointer to hardware structure
349 * Returns the media type (fiber, copper, backplane)
351 STATIC enum ixgbe_media_type ixgbe_get_media_type_82598(struct ixgbe_hw *hw)
353 enum ixgbe_media_type media_type;
355 DEBUGFUNC("ixgbe_get_media_type_82598");
357 /* Detect if there is a copper PHY attached. */
358 switch (hw->phy.type) {
359 case ixgbe_phy_cu_unknown:
361 media_type = ixgbe_media_type_copper;
367 /* Media type for I82598 is based on device ID */
368 switch (hw->device_id) {
369 case IXGBE_DEV_ID_82598:
370 case IXGBE_DEV_ID_82598_BX:
371 /* Default device ID is mezzanine card KX/KX4 */
372 media_type = ixgbe_media_type_backplane;
374 case IXGBE_DEV_ID_82598AF_DUAL_PORT:
375 case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
376 case IXGBE_DEV_ID_82598_DA_DUAL_PORT:
377 case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM:
378 case IXGBE_DEV_ID_82598EB_XF_LR:
379 case IXGBE_DEV_ID_82598EB_SFP_LOM:
380 media_type = ixgbe_media_type_fiber;
382 case IXGBE_DEV_ID_82598EB_CX4:
383 case IXGBE_DEV_ID_82598_CX4_DUAL_PORT:
384 media_type = ixgbe_media_type_cx4;
386 case IXGBE_DEV_ID_82598AT:
387 case IXGBE_DEV_ID_82598AT2:
388 media_type = ixgbe_media_type_copper;
391 media_type = ixgbe_media_type_unknown;
399 * ixgbe_fc_enable_82598 - Enable flow control
400 * @hw: pointer to hardware structure
402 * Enable flow control according to the current settings.
404 s32 ixgbe_fc_enable_82598(struct ixgbe_hw *hw)
406 s32 ret_val = IXGBE_SUCCESS;
415 DEBUGFUNC("ixgbe_fc_enable_82598");
417 /* Validate the water mark configuration */
418 if (!hw->fc.pause_time) {
419 ret_val = IXGBE_ERR_INVALID_LINK_SETTINGS;
423 /* Low water mark of zero causes XOFF floods */
424 for (i = 0; i < IXGBE_DCB_MAX_TRAFFIC_CLASS; i++) {
425 if ((hw->fc.current_mode & ixgbe_fc_tx_pause) &&
426 hw->fc.high_water[i]) {
427 if (!hw->fc.low_water[i] ||
428 hw->fc.low_water[i] >= hw->fc.high_water[i]) {
429 DEBUGOUT("Invalid water mark configuration\n");
430 ret_val = IXGBE_ERR_INVALID_LINK_SETTINGS;
437 * On 82598 having Rx FC on causes resets while doing 1G
438 * so if it's on turn it off once we know link_speed. For
439 * more details see 82598 Specification update.
441 hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
442 if (link_up && link_speed == IXGBE_LINK_SPEED_1GB_FULL) {
443 switch (hw->fc.requested_mode) {
445 hw->fc.requested_mode = ixgbe_fc_tx_pause;
447 case ixgbe_fc_rx_pause:
448 hw->fc.requested_mode = ixgbe_fc_none;
456 /* Negotiate the fc mode to use */
457 ixgbe_fc_autoneg(hw);
459 /* Disable any previous flow control settings */
460 fctrl_reg = IXGBE_READ_REG(hw, IXGBE_FCTRL);
461 fctrl_reg &= ~(IXGBE_FCTRL_RFCE | IXGBE_FCTRL_RPFCE);
463 rmcs_reg = IXGBE_READ_REG(hw, IXGBE_RMCS);
464 rmcs_reg &= ~(IXGBE_RMCS_TFCE_PRIORITY | IXGBE_RMCS_TFCE_802_3X);
467 * The possible values of fc.current_mode are:
468 * 0: Flow control is completely disabled
469 * 1: Rx flow control is enabled (we can receive pause frames,
470 * but not send pause frames).
471 * 2: Tx flow control is enabled (we can send pause frames but
472 * we do not support receiving pause frames).
473 * 3: Both Rx and Tx flow control (symmetric) are enabled.
476 switch (hw->fc.current_mode) {
479 * Flow control is disabled by software override or autoneg.
480 * The code below will actually disable it in the HW.
483 case ixgbe_fc_rx_pause:
485 * Rx Flow control is enabled and Tx Flow control is
486 * disabled by software override. Since there really
487 * isn't a way to advertise that we are capable of RX
488 * Pause ONLY, we will advertise that we support both
489 * symmetric and asymmetric Rx PAUSE. Later, we will
490 * disable the adapter's ability to send PAUSE frames.
492 fctrl_reg |= IXGBE_FCTRL_RFCE;
494 case ixgbe_fc_tx_pause:
496 * Tx Flow control is enabled, and Rx Flow control is
497 * disabled by software override.
499 rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
502 /* Flow control (both Rx and Tx) is enabled by SW override. */
503 fctrl_reg |= IXGBE_FCTRL_RFCE;
504 rmcs_reg |= IXGBE_RMCS_TFCE_802_3X;
507 DEBUGOUT("Flow control param set incorrectly\n");
508 ret_val = IXGBE_ERR_CONFIG;
513 /* Set 802.3x based flow control settings. */
514 fctrl_reg |= IXGBE_FCTRL_DPF;
515 IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl_reg);
516 IXGBE_WRITE_REG(hw, IXGBE_RMCS, rmcs_reg);
518 /* Set up and enable Rx high/low water mark thresholds, enable XON. */
519 for (i = 0; i < IXGBE_DCB_MAX_TRAFFIC_CLASS; i++) {
520 if ((hw->fc.current_mode & ixgbe_fc_tx_pause) &&
521 hw->fc.high_water[i]) {
522 fcrtl = (hw->fc.low_water[i] << 10) | IXGBE_FCRTL_XONE;
523 fcrth = (hw->fc.high_water[i] << 10) | IXGBE_FCRTH_FCEN;
524 IXGBE_WRITE_REG(hw, IXGBE_FCRTL(i), fcrtl);
525 IXGBE_WRITE_REG(hw, IXGBE_FCRTH(i), fcrth);
527 IXGBE_WRITE_REG(hw, IXGBE_FCRTL(i), 0);
528 IXGBE_WRITE_REG(hw, IXGBE_FCRTH(i), 0);
533 /* Configure pause time (2 TCs per register) */
534 reg = hw->fc.pause_time * 0x00010001;
535 for (i = 0; i < (IXGBE_DCB_MAX_TRAFFIC_CLASS / 2); i++)
536 IXGBE_WRITE_REG(hw, IXGBE_FCTTV(i), reg);
538 /* Configure flow control refresh threshold value */
539 IXGBE_WRITE_REG(hw, IXGBE_FCRTV, hw->fc.pause_time / 2);
546 * ixgbe_start_mac_link_82598 - Configures MAC link settings
547 * @hw: pointer to hardware structure
549 * Configures link settings based on values in the ixgbe_hw struct.
550 * Restarts the link. Performs autonegotiation if needed.
552 STATIC s32 ixgbe_start_mac_link_82598(struct ixgbe_hw *hw,
553 bool autoneg_wait_to_complete)
558 s32 status = IXGBE_SUCCESS;
560 DEBUGFUNC("ixgbe_start_mac_link_82598");
563 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
564 autoc_reg |= IXGBE_AUTOC_AN_RESTART;
565 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
567 /* Only poll for autoneg to complete if specified to do so */
568 if (autoneg_wait_to_complete) {
569 if ((autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
570 IXGBE_AUTOC_LMS_KX4_AN ||
571 (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
572 IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
573 links_reg = 0; /* Just in case Autoneg time = 0 */
574 for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
575 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
576 if (links_reg & IXGBE_LINKS_KX_AN_COMP)
580 if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
581 status = IXGBE_ERR_AUTONEG_NOT_COMPLETE;
582 DEBUGOUT("Autonegotiation did not complete.\n");
587 /* Add delay to filter out noises during initial link setup */
594 * ixgbe_validate_link_ready - Function looks for phy link
595 * @hw: pointer to hardware structure
597 * Function indicates success when phy link is available. If phy is not ready
598 * within 5 seconds of MAC indicating link, the function returns error.
600 STATIC s32 ixgbe_validate_link_ready(struct ixgbe_hw *hw)
605 if (hw->device_id != IXGBE_DEV_ID_82598AT2)
606 return IXGBE_SUCCESS;
609 timeout < IXGBE_VALIDATE_LINK_READY_TIMEOUT; timeout++) {
610 hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_STATUS,
611 IXGBE_MDIO_AUTO_NEG_DEV_TYPE, &an_reg);
613 if ((an_reg & IXGBE_MII_AUTONEG_COMPLETE) &&
614 (an_reg & IXGBE_MII_AUTONEG_LINK_UP))
620 if (timeout == IXGBE_VALIDATE_LINK_READY_TIMEOUT) {
621 DEBUGOUT("Link was indicated but link is down\n");
622 return IXGBE_ERR_LINK_SETUP;
625 return IXGBE_SUCCESS;
629 * ixgbe_check_mac_link_82598 - Get link/speed status
630 * @hw: pointer to hardware structure
631 * @speed: pointer to link speed
632 * @link_up: true is link is up, false otherwise
633 * @link_up_wait_to_complete: bool used to wait for link up or not
635 * Reads the links register to determine if link is up and the current speed
637 STATIC s32 ixgbe_check_mac_link_82598(struct ixgbe_hw *hw,
638 ixgbe_link_speed *speed, bool *link_up,
639 bool link_up_wait_to_complete)
643 u16 link_reg, adapt_comp_reg;
645 DEBUGFUNC("ixgbe_check_mac_link_82598");
648 * SERDES PHY requires us to read link status from undocumented
649 * register 0xC79F. Bit 0 set indicates link is up/ready; clear
650 * indicates link down. OxC00C is read to check that the XAUI lanes
651 * are active. Bit 0 clear indicates active; set indicates inactive.
653 if (hw->phy.type == ixgbe_phy_nl) {
654 hw->phy.ops.read_reg(hw, 0xC79F, IXGBE_TWINAX_DEV, &link_reg);
655 hw->phy.ops.read_reg(hw, 0xC79F, IXGBE_TWINAX_DEV, &link_reg);
656 hw->phy.ops.read_reg(hw, 0xC00C, IXGBE_TWINAX_DEV,
658 if (link_up_wait_to_complete) {
659 for (i = 0; i < IXGBE_LINK_UP_TIME; i++) {
660 if ((link_reg & 1) &&
661 ((adapt_comp_reg & 1) == 0)) {
668 hw->phy.ops.read_reg(hw, 0xC79F,
671 hw->phy.ops.read_reg(hw, 0xC00C,
676 if ((link_reg & 1) && ((adapt_comp_reg & 1) == 0))
682 if (*link_up == false)
686 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
687 if (link_up_wait_to_complete) {
688 for (i = 0; i < IXGBE_LINK_UP_TIME; i++) {
689 if (links_reg & IXGBE_LINKS_UP) {
696 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
699 if (links_reg & IXGBE_LINKS_UP)
705 if (links_reg & IXGBE_LINKS_SPEED)
706 *speed = IXGBE_LINK_SPEED_10GB_FULL;
708 *speed = IXGBE_LINK_SPEED_1GB_FULL;
710 if ((hw->device_id == IXGBE_DEV_ID_82598AT2) && (*link_up == true) &&
711 (ixgbe_validate_link_ready(hw) != IXGBE_SUCCESS))
715 return IXGBE_SUCCESS;
719 * ixgbe_setup_mac_link_82598 - Set MAC link speed
720 * @hw: pointer to hardware structure
721 * @speed: new link speed
722 * @autoneg: true if autonegotiation enabled
723 * @autoneg_wait_to_complete: true when waiting for completion is needed
725 * Set the link speed in the AUTOC register and restarts link.
727 STATIC s32 ixgbe_setup_mac_link_82598(struct ixgbe_hw *hw,
728 ixgbe_link_speed speed, bool autoneg,
729 bool autoneg_wait_to_complete)
731 s32 status = IXGBE_SUCCESS;
732 ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN;
733 u32 curr_autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
734 u32 autoc = curr_autoc;
735 u32 link_mode = autoc & IXGBE_AUTOC_LMS_MASK;
737 DEBUGFUNC("ixgbe_setup_mac_link_82598");
739 /* Check to see if speed passed in is supported. */
740 ixgbe_get_link_capabilities(hw, &link_capabilities, &autoneg);
741 speed &= link_capabilities;
743 if (speed == IXGBE_LINK_SPEED_UNKNOWN)
744 status = IXGBE_ERR_LINK_SETUP;
746 /* Set KX4/KX support according to speed requested */
747 else if (link_mode == IXGBE_AUTOC_LMS_KX4_AN ||
748 link_mode == IXGBE_AUTOC_LMS_KX4_AN_1G_AN) {
749 autoc &= ~IXGBE_AUTOC_KX4_KX_SUPP_MASK;
750 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
751 autoc |= IXGBE_AUTOC_KX4_SUPP;
752 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
753 autoc |= IXGBE_AUTOC_KX_SUPP;
754 if (autoc != curr_autoc)
755 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc);
758 if (status == IXGBE_SUCCESS) {
760 * Setup and restart the link based on the new values in
761 * ixgbe_hw This will write the AUTOC register based on the new
764 status = ixgbe_start_mac_link_82598(hw,
765 autoneg_wait_to_complete);
773 * ixgbe_setup_copper_link_82598 - Set the PHY autoneg advertised field
774 * @hw: pointer to hardware structure
775 * @speed: new link speed
776 * @autoneg: true if autonegotiation enabled
777 * @autoneg_wait_to_complete: true if waiting is needed to complete
779 * Sets the link speed in the AUTOC register in the MAC and restarts link.
781 STATIC s32 ixgbe_setup_copper_link_82598(struct ixgbe_hw *hw,
782 ixgbe_link_speed speed,
784 bool autoneg_wait_to_complete)
788 DEBUGFUNC("ixgbe_setup_copper_link_82598");
790 /* Setup the PHY according to input speed */
791 status = hw->phy.ops.setup_link_speed(hw, speed, autoneg,
792 autoneg_wait_to_complete);
794 ixgbe_start_mac_link_82598(hw, autoneg_wait_to_complete);
800 * ixgbe_reset_hw_82598 - Performs hardware reset
801 * @hw: pointer to hardware structure
803 * Resets the hardware by resetting the transmit and receive units, masks and
804 * clears all interrupts, performing a PHY reset, and performing a link (MAC)
807 STATIC s32 ixgbe_reset_hw_82598(struct ixgbe_hw *hw)
809 s32 status = IXGBE_SUCCESS;
810 s32 phy_status = IXGBE_SUCCESS;
817 DEBUGFUNC("ixgbe_reset_hw_82598");
819 /* Call adapter stop to disable tx/rx and clear interrupts */
820 status = hw->mac.ops.stop_adapter(hw);
821 if (status != IXGBE_SUCCESS)
825 * Power up the Atlas Tx lanes if they are currently powered down.
826 * Atlas Tx lanes are powered down for MAC loopback tests, but
827 * they are not automatically restored on reset.
829 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK, &analog_val);
830 if (analog_val & IXGBE_ATLAS_PDN_TX_REG_EN) {
831 /* Enable Tx Atlas so packets can be transmitted again */
832 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
834 analog_val &= ~IXGBE_ATLAS_PDN_TX_REG_EN;
835 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_LPBK,
838 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
840 analog_val &= ~IXGBE_ATLAS_PDN_TX_10G_QL_ALL;
841 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_10G,
844 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
846 analog_val &= ~IXGBE_ATLAS_PDN_TX_1G_QL_ALL;
847 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_1G,
850 hw->mac.ops.read_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
852 analog_val &= ~IXGBE_ATLAS_PDN_TX_AN_QL_ALL;
853 hw->mac.ops.write_analog_reg8(hw, IXGBE_ATLAS_PDN_AN,
858 if (hw->phy.reset_disable == false) {
859 /* PHY ops must be identified and initialized prior to reset */
861 /* Init PHY and function pointers, perform SFP setup */
862 phy_status = hw->phy.ops.init(hw);
863 if (phy_status == IXGBE_ERR_SFP_NOT_SUPPORTED)
865 if (phy_status == IXGBE_ERR_SFP_NOT_PRESENT)
868 hw->phy.ops.reset(hw);
873 * Issue global reset to the MAC. This needs to be a SW reset.
874 * If link reset is used, it might reset the MAC when mng is using it
876 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL) | IXGBE_CTRL_RST;
877 IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
878 IXGBE_WRITE_FLUSH(hw);
880 /* Poll for reset bit to self-clear indicating reset is complete */
881 for (i = 0; i < 10; i++) {
883 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
884 if (!(ctrl & IXGBE_CTRL_RST))
887 if (ctrl & IXGBE_CTRL_RST) {
888 status = IXGBE_ERR_RESET_FAILED;
889 DEBUGOUT("Reset polling failed to complete.\n");
895 * Double resets are required for recovery from certain error
896 * conditions. Between resets, it is necessary to stall to allow time
897 * for any pending HW events to complete.
899 if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
900 hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
904 gheccr = IXGBE_READ_REG(hw, IXGBE_GHECCR);
905 gheccr &= ~((1 << 21) | (1 << 18) | (1 << 9) | (1 << 6));
906 IXGBE_WRITE_REG(hw, IXGBE_GHECCR, gheccr);
909 * Store the original AUTOC value if it has not been
910 * stored off yet. Otherwise restore the stored original
911 * AUTOC value since the reset operation sets back to deaults.
913 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
914 if (hw->mac.orig_link_settings_stored == false) {
915 hw->mac.orig_autoc = autoc;
916 hw->mac.orig_link_settings_stored = true;
917 } else if (autoc != hw->mac.orig_autoc) {
918 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, hw->mac.orig_autoc);
921 /* Store the permanent mac address */
922 hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
925 * Store MAC address from RAR0, clear receive address registers, and
926 * clear the multicast table
928 hw->mac.ops.init_rx_addrs(hw);
931 if (phy_status != IXGBE_SUCCESS)
938 * ixgbe_set_vmdq_82598 - Associate a VMDq set index with a rx address
939 * @hw: pointer to hardware struct
940 * @rar: receive address register index to associate with a VMDq index
941 * @vmdq: VMDq set index
943 s32 ixgbe_set_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
946 u32 rar_entries = hw->mac.num_rar_entries;
948 DEBUGFUNC("ixgbe_set_vmdq_82598");
950 /* Make sure we are using a valid rar index range */
951 if (rar >= rar_entries) {
952 DEBUGOUT1("RAR index %d is out of range.\n", rar);
953 return IXGBE_ERR_INVALID_ARGUMENT;
956 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
957 rar_high &= ~IXGBE_RAH_VIND_MASK;
958 rar_high |= ((vmdq << IXGBE_RAH_VIND_SHIFT) & IXGBE_RAH_VIND_MASK);
959 IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
960 return IXGBE_SUCCESS;
964 * ixgbe_clear_vmdq_82598 - Disassociate a VMDq set index from an rx address
965 * @hw: pointer to hardware struct
966 * @rar: receive address register index to associate with a VMDq index
967 * @vmdq: VMDq clear index (not used in 82598, but elsewhere)
969 STATIC s32 ixgbe_clear_vmdq_82598(struct ixgbe_hw *hw, u32 rar, u32 vmdq)
972 u32 rar_entries = hw->mac.num_rar_entries;
974 UNREFERENCED_1PARAMETER(vmdq);
976 /* Make sure we are using a valid rar index range */
977 if (rar >= rar_entries) {
978 DEBUGOUT1("RAR index %d is out of range.\n", rar);
979 return IXGBE_ERR_INVALID_ARGUMENT;
982 rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar));
983 if (rar_high & IXGBE_RAH_VIND_MASK) {
984 rar_high &= ~IXGBE_RAH_VIND_MASK;
985 IXGBE_WRITE_REG(hw, IXGBE_RAH(rar), rar_high);
988 return IXGBE_SUCCESS;
992 * ixgbe_set_vfta_82598 - Set VLAN filter table
993 * @hw: pointer to hardware structure
994 * @vlan: VLAN id to write to VLAN filter
995 * @vind: VMDq output index that maps queue to VLAN id in VFTA
996 * @vlan_on: boolean flag to turn on/off VLAN in VFTA
998 * Turn on/off specified VLAN in the VLAN filter table.
1000 s32 ixgbe_set_vfta_82598(struct ixgbe_hw *hw, u32 vlan, u32 vind,
1008 DEBUGFUNC("ixgbe_set_vfta_82598");
1011 return IXGBE_ERR_PARAM;
1013 /* Determine 32-bit word position in array */
1014 regindex = (vlan >> 5) & 0x7F; /* upper seven bits */
1016 /* Determine the location of the (VMD) queue index */
1017 vftabyte = ((vlan >> 3) & 0x03); /* bits (4:3) indicating byte array */
1018 bitindex = (vlan & 0x7) << 2; /* lower 3 bits indicate nibble */
1020 /* Set the nibble for VMD queue index */
1021 bits = IXGBE_READ_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex));
1022 bits &= (~(0x0F << bitindex));
1023 bits |= (vind << bitindex);
1024 IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vftabyte, regindex), bits);
1026 /* Determine the location of the bit for this VLAN id */
1027 bitindex = vlan & 0x1F; /* lower five bits */
1029 bits = IXGBE_READ_REG(hw, IXGBE_VFTA(regindex));
1031 /* Turn on this VLAN id */
1032 bits |= (1 << bitindex);
1034 /* Turn off this VLAN id */
1035 bits &= ~(1 << bitindex);
1036 IXGBE_WRITE_REG(hw, IXGBE_VFTA(regindex), bits);
1038 return IXGBE_SUCCESS;
1042 * ixgbe_clear_vfta_82598 - Clear VLAN filter table
1043 * @hw: pointer to hardware structure
1045 * Clears the VLAN filer table, and the VMDq index associated with the filter
1047 STATIC s32 ixgbe_clear_vfta_82598(struct ixgbe_hw *hw)
1052 DEBUGFUNC("ixgbe_clear_vfta_82598");
1054 for (offset = 0; offset < hw->mac.vft_size; offset++)
1055 IXGBE_WRITE_REG(hw, IXGBE_VFTA(offset), 0);
1057 for (vlanbyte = 0; vlanbyte < 4; vlanbyte++)
1058 for (offset = 0; offset < hw->mac.vft_size; offset++)
1059 IXGBE_WRITE_REG(hw, IXGBE_VFTAVIND(vlanbyte, offset),
1062 return IXGBE_SUCCESS;
1066 * ixgbe_read_analog_reg8_82598 - Reads 8 bit Atlas analog register
1067 * @hw: pointer to hardware structure
1068 * @reg: analog register to read
1071 * Performs read operation to Atlas analog register specified.
1073 s32 ixgbe_read_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 *val)
1077 DEBUGFUNC("ixgbe_read_analog_reg8_82598");
1079 IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL,
1080 IXGBE_ATLASCTL_WRITE_CMD | (reg << 8));
1081 IXGBE_WRITE_FLUSH(hw);
1083 atlas_ctl = IXGBE_READ_REG(hw, IXGBE_ATLASCTL);
1084 *val = (u8)atlas_ctl;
1086 return IXGBE_SUCCESS;
1090 * ixgbe_write_analog_reg8_82598 - Writes 8 bit Atlas analog register
1091 * @hw: pointer to hardware structure
1092 * @reg: atlas register to write
1093 * @val: value to write
1095 * Performs write operation to Atlas analog register specified.
1097 s32 ixgbe_write_analog_reg8_82598(struct ixgbe_hw *hw, u32 reg, u8 val)
1101 DEBUGFUNC("ixgbe_write_analog_reg8_82598");
1103 atlas_ctl = (reg << 8) | val;
1104 IXGBE_WRITE_REG(hw, IXGBE_ATLASCTL, atlas_ctl);
1105 IXGBE_WRITE_FLUSH(hw);
1108 return IXGBE_SUCCESS;
1112 * ixgbe_read_i2c_eeprom_82598 - Reads 8 bit word over I2C interface.
1113 * @hw: pointer to hardware structure
1114 * @byte_offset: EEPROM byte offset to read
1115 * @eeprom_data: value read
1117 * Performs 8 byte read operation to SFP module's EEPROM over I2C interface.
1119 s32 ixgbe_read_i2c_eeprom_82598(struct ixgbe_hw *hw, u8 byte_offset,
1122 s32 status = IXGBE_SUCCESS;
1128 DEBUGFUNC("ixgbe_read_i2c_eeprom_82598");
1130 if (hw->phy.type == ixgbe_phy_nl) {
1132 * NetLogic phy SDA/SCL registers are at addresses 0xC30A to
1133 * 0xC30D. These registers are used to talk to the SFP+
1134 * module's EEPROM through the SDA/SCL (I2C) interface.
1136 sfp_addr = (IXGBE_I2C_EEPROM_DEV_ADDR << 8) + byte_offset;
1137 sfp_addr = (sfp_addr | IXGBE_I2C_EEPROM_READ_MASK);
1138 hw->phy.ops.write_reg(hw,
1139 IXGBE_MDIO_PMA_PMD_SDA_SCL_ADDR,
1140 IXGBE_MDIO_PMA_PMD_DEV_TYPE,
1144 for (i = 0; i < 100; i++) {
1145 hw->phy.ops.read_reg(hw,
1146 IXGBE_MDIO_PMA_PMD_SDA_SCL_STAT,
1147 IXGBE_MDIO_PMA_PMD_DEV_TYPE,
1149 sfp_stat = sfp_stat & IXGBE_I2C_EEPROM_STATUS_MASK;
1150 if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_IN_PROGRESS)
1155 if (sfp_stat != IXGBE_I2C_EEPROM_STATUS_PASS) {
1156 DEBUGOUT("EEPROM read did not pass.\n");
1157 status = IXGBE_ERR_SFP_NOT_PRESENT;
1162 hw->phy.ops.read_reg(hw, IXGBE_MDIO_PMA_PMD_SDA_SCL_DATA,
1163 IXGBE_MDIO_PMA_PMD_DEV_TYPE, &sfp_data);
1165 *eeprom_data = (u8)(sfp_data >> 8);
1167 status = IXGBE_ERR_PHY;
1176 * ixgbe_get_supported_physical_layer_82598 - Returns physical layer type
1177 * @hw: pointer to hardware structure
1179 * Determines physical layer capabilities of the current configuration.
1181 u32 ixgbe_get_supported_physical_layer_82598(struct ixgbe_hw *hw)
1183 u32 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
1184 u32 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
1185 u32 pma_pmd_10g = autoc & IXGBE_AUTOC_10G_PMA_PMD_MASK;
1186 u32 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;
1187 u16 ext_ability = 0;
1189 DEBUGFUNC("ixgbe_get_supported_physical_layer_82598");
1191 hw->phy.ops.identify(hw);
1193 /* Copper PHY must be checked before AUTOC LMS to determine correct
1194 * physical layer because 10GBase-T PHYs use LMS = KX4/KX */
1195 switch (hw->phy.type) {
1197 case ixgbe_phy_cu_unknown:
1198 hw->phy.ops.read_reg(hw, IXGBE_MDIO_PHY_EXT_ABILITY,
1199 IXGBE_MDIO_PMA_PMD_DEV_TYPE, &ext_ability);
1200 if (ext_ability & IXGBE_MDIO_PHY_10GBASET_ABILITY)
1201 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_T;
1202 if (ext_ability & IXGBE_MDIO_PHY_1000BASET_ABILITY)
1203 physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_T;
1204 if (ext_ability & IXGBE_MDIO_PHY_100BASETX_ABILITY)
1205 physical_layer |= IXGBE_PHYSICAL_LAYER_100BASE_TX;
1211 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
1212 case IXGBE_AUTOC_LMS_1G_AN:
1213 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
1214 if (pma_pmd_1g == IXGBE_AUTOC_1G_KX)
1215 physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_KX;
1217 physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_BX;
1219 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
1220 if (pma_pmd_10g == IXGBE_AUTOC_10G_CX4)
1221 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_CX4;
1222 else if (pma_pmd_10g == IXGBE_AUTOC_10G_KX4)
1223 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
1225 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
1227 case IXGBE_AUTOC_LMS_KX4_AN:
1228 case IXGBE_AUTOC_LMS_KX4_AN_1G_AN:
1229 if (autoc & IXGBE_AUTOC_KX_SUPP)
1230 physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_KX;
1231 if (autoc & IXGBE_AUTOC_KX4_SUPP)
1232 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
1238 if (hw->phy.type == ixgbe_phy_nl) {
1239 hw->phy.ops.identify_sfp(hw);
1241 switch (hw->phy.sfp_type) {
1242 case ixgbe_sfp_type_da_cu:
1243 physical_layer = IXGBE_PHYSICAL_LAYER_SFP_PLUS_CU;
1245 case ixgbe_sfp_type_sr:
1246 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_SR;
1248 case ixgbe_sfp_type_lr:
1249 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_LR;
1252 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
1257 switch (hw->device_id) {
1258 case IXGBE_DEV_ID_82598_DA_DUAL_PORT:
1259 physical_layer = IXGBE_PHYSICAL_LAYER_SFP_PLUS_CU;
1261 case IXGBE_DEV_ID_82598AF_DUAL_PORT:
1262 case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
1263 case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM:
1264 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_SR;
1266 case IXGBE_DEV_ID_82598EB_XF_LR:
1267 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_LR;
1274 return physical_layer;
1278 * ixgbe_set_lan_id_multi_port_pcie_82598 - Set LAN id for PCIe multiple
1280 * @hw: pointer to the HW structure
1282 * Calls common function and corrects issue with some single port devices
1283 * that enable LAN1 but not LAN0.
1285 void ixgbe_set_lan_id_multi_port_pcie_82598(struct ixgbe_hw *hw)
1287 struct ixgbe_bus_info *bus = &hw->bus;
1291 DEBUGFUNC("ixgbe_set_lan_id_multi_port_pcie_82598");
1293 ixgbe_set_lan_id_multi_port_pcie(hw);
1295 /* check if LAN0 is disabled */
1296 hw->eeprom.ops.read(hw, IXGBE_PCIE_GENERAL_PTR, &pci_gen);
1297 if ((pci_gen != 0) && (pci_gen != 0xFFFF)) {
1299 hw->eeprom.ops.read(hw, pci_gen + IXGBE_PCIE_CTRL2, &pci_ctrl2);
1301 /* if LAN0 is completely disabled force function to 0 */
1302 if ((pci_ctrl2 & IXGBE_PCIE_CTRL2_LAN_DISABLE) &&
1303 !(pci_ctrl2 & IXGBE_PCIE_CTRL2_DISABLE_SELECT) &&
1304 !(pci_ctrl2 & IXGBE_PCIE_CTRL2_DUMMY_ENABLE)) {
1312 * ixgbe_enable_relaxed_ordering_82598 - enable relaxed ordering
1313 * @hw: pointer to hardware structure
1316 void ixgbe_enable_relaxed_ordering_82598(struct ixgbe_hw *hw)
1321 DEBUGFUNC("ixgbe_enable_relaxed_ordering_82598");
1323 /* Enable relaxed ordering */
1324 for (i = 0; ((i < hw->mac.max_tx_queues) &&
1325 (i < IXGBE_DCA_MAX_QUEUES_82598)); i++) {
1326 regval = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL(i));
1327 regval |= IXGBE_DCA_TXCTRL_DESC_WRO_EN;
1328 IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL(i), regval);
1331 for (i = 0; ((i < hw->mac.max_rx_queues) &&
1332 (i < IXGBE_DCA_MAX_QUEUES_82598)); i++) {
1333 regval = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i));
1334 regval |= IXGBE_DCA_RXCTRL_DATA_WRO_EN |
1335 IXGBE_DCA_RXCTRL_HEAD_WRO_EN;
1336 IXGBE_WRITE_REG(hw, IXGBE_DCA_RXCTRL(i), regval);
1342 * ixgbe_set_rxpba_82598 - Initialize RX packet buffer
1343 * @hw: pointer to hardware structure
1344 * @num_pb: number of packet buffers to allocate
1345 * @headroom: reserve n KB of headroom
1346 * @strategy: packet buffer allocation strategy
1348 STATIC void ixgbe_set_rxpba_82598(struct ixgbe_hw *hw, int num_pb,
1349 u32 headroom, int strategy)
1351 u32 rxpktsize = IXGBE_RXPBSIZE_64KB;
1353 UNREFERENCED_1PARAMETER(headroom);
1358 /* Setup Rx packet buffer sizes */
1360 case PBA_STRATEGY_WEIGHTED:
1361 /* Setup the first four at 80KB */
1362 rxpktsize = IXGBE_RXPBSIZE_80KB;
1364 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
1365 /* Setup the last four at 48KB...don't re-init i */
1366 rxpktsize = IXGBE_RXPBSIZE_48KB;
1368 case PBA_STRATEGY_EQUAL:
1370 /* Divide the remaining Rx packet buffer evenly among the TCs */
1371 for (; i < IXGBE_MAX_PACKET_BUFFERS; i++)
1372 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
1376 /* Setup Tx packet buffer sizes */
1377 for (i = 0; i < IXGBE_MAX_PACKET_BUFFERS; i++)
1378 IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i), IXGBE_TXPBSIZE_40KB);