1 /*******************************************************************************
3 Intel 10 Gigabit PCI Express Linux driver
4 Copyright(c) 1999 - 2011 Intel Corporation.
6 This program is free software; you can redistribute it and/or modify it
7 under the terms and conditions of the GNU General Public License,
8 version 2, as published by the Free Software Foundation.
10 This program is distributed in the hope it will be useful, but WITHOUT
11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 You should have received a copy of the GNU General Public License along with
16 this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
19 The full GNU General Public License is included in this distribution in
20 the file called "COPYING".
23 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
24 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
26 *******************************************************************************/
28 #include <linux/pci.h>
29 #include <linux/delay.h>
30 #include <linux/sched.h>
33 #include "ixgbe_phy.h"
34 #include "ixgbe_mbx.h"
36 #define IXGBE_82599_MAX_TX_QUEUES 128
37 #define IXGBE_82599_MAX_RX_QUEUES 128
38 #define IXGBE_82599_RAR_ENTRIES 128
39 #define IXGBE_82599_MC_TBL_SIZE 128
40 #define IXGBE_82599_VFT_TBL_SIZE 128
42 static void ixgbe_disable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw);
43 static void ixgbe_enable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw);
44 static void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw);
45 static s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw,
46 ixgbe_link_speed speed,
48 bool autoneg_wait_to_complete);
49 static s32 ixgbe_setup_mac_link_smartspeed(struct ixgbe_hw *hw,
50 ixgbe_link_speed speed,
52 bool autoneg_wait_to_complete);
53 static s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw,
54 bool autoneg_wait_to_complete);
55 static s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw,
56 ixgbe_link_speed speed,
58 bool autoneg_wait_to_complete);
59 static s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw,
60 ixgbe_link_speed speed,
62 bool autoneg_wait_to_complete);
63 static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw);
65 static void ixgbe_init_mac_link_ops_82599(struct ixgbe_hw *hw)
67 struct ixgbe_mac_info *mac = &hw->mac;
69 /* enable the laser control functions for SFP+ fiber */
70 if (mac->ops.get_media_type(hw) == ixgbe_media_type_fiber) {
71 mac->ops.disable_tx_laser =
72 &ixgbe_disable_tx_laser_multispeed_fiber;
73 mac->ops.enable_tx_laser =
74 &ixgbe_enable_tx_laser_multispeed_fiber;
75 mac->ops.flap_tx_laser = &ixgbe_flap_tx_laser_multispeed_fiber;
77 mac->ops.disable_tx_laser = NULL;
78 mac->ops.enable_tx_laser = NULL;
79 mac->ops.flap_tx_laser = NULL;
82 if (hw->phy.multispeed_fiber) {
83 /* Set up dual speed SFP+ support */
84 mac->ops.setup_link = &ixgbe_setup_mac_link_multispeed_fiber;
86 if ((mac->ops.get_media_type(hw) ==
87 ixgbe_media_type_backplane) &&
88 (hw->phy.smart_speed == ixgbe_smart_speed_auto ||
89 hw->phy.smart_speed == ixgbe_smart_speed_on))
90 mac->ops.setup_link = &ixgbe_setup_mac_link_smartspeed;
92 mac->ops.setup_link = &ixgbe_setup_mac_link_82599;
96 static s32 ixgbe_setup_sfp_modules_82599(struct ixgbe_hw *hw)
101 u16 list_offset, data_offset, data_value;
103 if (hw->phy.sfp_type != ixgbe_sfp_type_unknown) {
104 ixgbe_init_mac_link_ops_82599(hw);
106 hw->phy.ops.reset = NULL;
108 ret_val = ixgbe_get_sfp_init_sequence_offsets(hw, &list_offset,
114 /* PHY config will finish before releasing the semaphore */
115 ret_val = hw->mac.ops.acquire_swfw_sync(hw,
116 IXGBE_GSSR_MAC_CSR_SM);
118 ret_val = IXGBE_ERR_SWFW_SYNC;
122 hw->eeprom.ops.read(hw, ++data_offset, &data_value);
123 while (data_value != 0xffff) {
124 IXGBE_WRITE_REG(hw, IXGBE_CORECTL, data_value);
125 IXGBE_WRITE_FLUSH(hw);
126 hw->eeprom.ops.read(hw, ++data_offset, &data_value);
129 /* Release the semaphore */
130 ixgbe_release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
131 /* Delay obtaining semaphore again to allow FW access */
132 msleep(hw->eeprom.semaphore_delay);
134 /* Now restart DSP by setting Restart_AN and clearing LMS */
135 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, ((IXGBE_READ_REG(hw,
136 IXGBE_AUTOC) & ~IXGBE_AUTOC_LMS_MASK) |
137 IXGBE_AUTOC_AN_RESTART));
139 /* Wait for AN to leave state 0 */
140 for (i = 0; i < 10; i++) {
142 reg_anlp1 = IXGBE_READ_REG(hw, IXGBE_ANLP1);
143 if (reg_anlp1 & IXGBE_ANLP1_AN_STATE_MASK)
146 if (!(reg_anlp1 & IXGBE_ANLP1_AN_STATE_MASK)) {
147 hw_dbg(hw, "sfp module setup not complete\n");
148 ret_val = IXGBE_ERR_SFP_SETUP_NOT_COMPLETE;
152 /* Restart DSP by setting Restart_AN and return to SFI mode */
153 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, (IXGBE_READ_REG(hw,
154 IXGBE_AUTOC) | IXGBE_AUTOC_LMS_10G_SERIAL |
155 IXGBE_AUTOC_AN_RESTART));
162 static s32 ixgbe_get_invariants_82599(struct ixgbe_hw *hw)
164 struct ixgbe_mac_info *mac = &hw->mac;
166 ixgbe_init_mac_link_ops_82599(hw);
168 mac->mcft_size = IXGBE_82599_MC_TBL_SIZE;
169 mac->vft_size = IXGBE_82599_VFT_TBL_SIZE;
170 mac->num_rar_entries = IXGBE_82599_RAR_ENTRIES;
171 mac->max_rx_queues = IXGBE_82599_MAX_RX_QUEUES;
172 mac->max_tx_queues = IXGBE_82599_MAX_TX_QUEUES;
173 mac->max_msix_vectors = ixgbe_get_pcie_msix_count_generic(hw);
179 * ixgbe_init_phy_ops_82599 - PHY/SFP specific init
180 * @hw: pointer to hardware structure
182 * Initialize any function pointers that were not able to be
183 * set during get_invariants because the PHY/SFP type was
184 * not known. Perform the SFP init if necessary.
187 static s32 ixgbe_init_phy_ops_82599(struct ixgbe_hw *hw)
189 struct ixgbe_mac_info *mac = &hw->mac;
190 struct ixgbe_phy_info *phy = &hw->phy;
193 /* Identify the PHY or SFP module */
194 ret_val = phy->ops.identify(hw);
196 /* Setup function pointers based on detected SFP module and speeds */
197 ixgbe_init_mac_link_ops_82599(hw);
199 /* If copper media, overwrite with copper function pointers */
200 if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper) {
201 mac->ops.setup_link = &ixgbe_setup_copper_link_82599;
202 mac->ops.get_link_capabilities =
203 &ixgbe_get_copper_link_capabilities_generic;
206 /* Set necessary function pointers based on phy type */
207 switch (hw->phy.type) {
209 phy->ops.check_link = &ixgbe_check_phy_link_tnx;
210 phy->ops.get_firmware_version =
211 &ixgbe_get_phy_firmware_version_tnx;
214 phy->ops.get_firmware_version =
215 &ixgbe_get_phy_firmware_version_generic;
225 * ixgbe_get_link_capabilities_82599 - Determines link capabilities
226 * @hw: pointer to hardware structure
227 * @speed: pointer to link speed
228 * @negotiation: true when autoneg or autotry is enabled
230 * Determines the link capabilities by reading the AUTOC register.
232 static s32 ixgbe_get_link_capabilities_82599(struct ixgbe_hw *hw,
233 ixgbe_link_speed *speed,
239 /* Determine 1G link capabilities off of SFP+ type */
240 if (hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core0 ||
241 hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core1) {
242 *speed = IXGBE_LINK_SPEED_1GB_FULL;
248 * Determine link capabilities based on the stored value of AUTOC,
249 * which represents EEPROM defaults. If AUTOC value has not been
250 * stored, use the current register value.
252 if (hw->mac.orig_link_settings_stored)
253 autoc = hw->mac.orig_autoc;
255 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
257 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
258 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
259 *speed = IXGBE_LINK_SPEED_1GB_FULL;
260 *negotiation = false;
263 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
264 *speed = IXGBE_LINK_SPEED_10GB_FULL;
265 *negotiation = false;
268 case IXGBE_AUTOC_LMS_1G_AN:
269 *speed = IXGBE_LINK_SPEED_1GB_FULL;
273 case IXGBE_AUTOC_LMS_10G_SERIAL:
274 *speed = IXGBE_LINK_SPEED_10GB_FULL;
275 *negotiation = false;
278 case IXGBE_AUTOC_LMS_KX4_KX_KR:
279 case IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN:
280 *speed = IXGBE_LINK_SPEED_UNKNOWN;
281 if (autoc & IXGBE_AUTOC_KR_SUPP)
282 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
283 if (autoc & IXGBE_AUTOC_KX4_SUPP)
284 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
285 if (autoc & IXGBE_AUTOC_KX_SUPP)
286 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
290 case IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII:
291 *speed = IXGBE_LINK_SPEED_100_FULL;
292 if (autoc & IXGBE_AUTOC_KR_SUPP)
293 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
294 if (autoc & IXGBE_AUTOC_KX4_SUPP)
295 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
296 if (autoc & IXGBE_AUTOC_KX_SUPP)
297 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
301 case IXGBE_AUTOC_LMS_SGMII_1G_100M:
302 *speed = IXGBE_LINK_SPEED_1GB_FULL | IXGBE_LINK_SPEED_100_FULL;
303 *negotiation = false;
307 status = IXGBE_ERR_LINK_SETUP;
312 if (hw->phy.multispeed_fiber) {
313 *speed |= IXGBE_LINK_SPEED_10GB_FULL |
314 IXGBE_LINK_SPEED_1GB_FULL;
323 * ixgbe_get_media_type_82599 - Get media type
324 * @hw: pointer to hardware structure
326 * Returns the media type (fiber, copper, backplane)
328 static enum ixgbe_media_type ixgbe_get_media_type_82599(struct ixgbe_hw *hw)
330 enum ixgbe_media_type media_type;
332 /* Detect if there is a copper PHY attached. */
333 switch (hw->phy.type) {
334 case ixgbe_phy_cu_unknown:
337 media_type = ixgbe_media_type_copper;
343 switch (hw->device_id) {
344 case IXGBE_DEV_ID_82599_KX4:
345 case IXGBE_DEV_ID_82599_KX4_MEZZ:
346 case IXGBE_DEV_ID_82599_COMBO_BACKPLANE:
347 case IXGBE_DEV_ID_82599_KR:
348 case IXGBE_DEV_ID_82599_BACKPLANE_FCOE:
349 case IXGBE_DEV_ID_82599_XAUI_LOM:
350 /* Default device ID is mezzanine card KX/KX4 */
351 media_type = ixgbe_media_type_backplane;
353 case IXGBE_DEV_ID_82599_SFP:
354 case IXGBE_DEV_ID_82599_SFP_FCOE:
355 case IXGBE_DEV_ID_82599_SFP_EM:
356 media_type = ixgbe_media_type_fiber;
358 case IXGBE_DEV_ID_82599_CX4:
359 media_type = ixgbe_media_type_cx4;
361 case IXGBE_DEV_ID_82599_T3_LOM:
362 media_type = ixgbe_media_type_copper;
365 media_type = ixgbe_media_type_unknown;
373 * ixgbe_start_mac_link_82599 - Setup MAC link settings
374 * @hw: pointer to hardware structure
375 * @autoneg_wait_to_complete: true when waiting for completion is needed
377 * Configures link settings based on values in the ixgbe_hw struct.
378 * Restarts the link. Performs autonegotiation if needed.
380 static s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw,
381 bool autoneg_wait_to_complete)
389 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
390 autoc_reg |= IXGBE_AUTOC_AN_RESTART;
391 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
393 /* Only poll for autoneg to complete if specified to do so */
394 if (autoneg_wait_to_complete) {
395 if ((autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
396 IXGBE_AUTOC_LMS_KX4_KX_KR ||
397 (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
398 IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
399 (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
400 IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
401 links_reg = 0; /* Just in case Autoneg time = 0 */
402 for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
403 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
404 if (links_reg & IXGBE_LINKS_KX_AN_COMP)
408 if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
409 status = IXGBE_ERR_AUTONEG_NOT_COMPLETE;
410 hw_dbg(hw, "Autoneg did not complete.\n");
415 /* Add delay to filter out noises during initial link setup */
422 * ixgbe_disable_tx_laser_multispeed_fiber - Disable Tx laser
423 * @hw: pointer to hardware structure
425 * The base drivers may require better control over SFP+ module
426 * PHY states. This includes selectively shutting down the Tx
427 * laser on the PHY, effectively halting physical link.
429 static void ixgbe_disable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
431 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
433 /* Disable tx laser; allow 100us to go dark per spec */
434 esdp_reg |= IXGBE_ESDP_SDP3;
435 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
436 IXGBE_WRITE_FLUSH(hw);
441 * ixgbe_enable_tx_laser_multispeed_fiber - Enable Tx laser
442 * @hw: pointer to hardware structure
444 * The base drivers may require better control over SFP+ module
445 * PHY states. This includes selectively turning on the Tx
446 * laser on the PHY, effectively starting physical link.
448 static void ixgbe_enable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
450 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
452 /* Enable tx laser; allow 100ms to light up */
453 esdp_reg &= ~IXGBE_ESDP_SDP3;
454 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
455 IXGBE_WRITE_FLUSH(hw);
460 * ixgbe_flap_tx_laser_multispeed_fiber - Flap Tx laser
461 * @hw: pointer to hardware structure
463 * When the driver changes the link speeds that it can support,
464 * it sets autotry_restart to true to indicate that we need to
465 * initiate a new autotry session with the link partner. To do
466 * so, we set the speed then disable and re-enable the tx laser, to
467 * alert the link partner that it also needs to restart autotry on its
468 * end. This is consistent with true clause 37 autoneg, which also
469 * involves a loss of signal.
471 static void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
473 if (hw->mac.autotry_restart) {
474 ixgbe_disable_tx_laser_multispeed_fiber(hw);
475 ixgbe_enable_tx_laser_multispeed_fiber(hw);
476 hw->mac.autotry_restart = false;
481 * ixgbe_setup_mac_link_multispeed_fiber - Set MAC link speed
482 * @hw: pointer to hardware structure
483 * @speed: new link speed
484 * @autoneg: true if autonegotiation enabled
485 * @autoneg_wait_to_complete: true when waiting for completion is needed
487 * Set the link speed in the AUTOC register and restarts link.
489 s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw,
490 ixgbe_link_speed speed,
492 bool autoneg_wait_to_complete)
495 ixgbe_link_speed link_speed = IXGBE_LINK_SPEED_UNKNOWN;
496 ixgbe_link_speed highest_link_speed = IXGBE_LINK_SPEED_UNKNOWN;
498 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
500 bool link_up = false;
503 /* Mask off requested but non-supported speeds */
504 status = hw->mac.ops.get_link_capabilities(hw, &link_speed,
512 * Try each speed one by one, highest priority first. We do this in
513 * software because 10gb fiber doesn't support speed autonegotiation.
515 if (speed & IXGBE_LINK_SPEED_10GB_FULL) {
517 highest_link_speed = IXGBE_LINK_SPEED_10GB_FULL;
519 /* If we already have link at this speed, just jump out */
520 status = hw->mac.ops.check_link(hw, &link_speed, &link_up,
525 if ((link_speed == IXGBE_LINK_SPEED_10GB_FULL) && link_up)
528 /* Set the module link speed */
529 esdp_reg |= (IXGBE_ESDP_SDP5_DIR | IXGBE_ESDP_SDP5);
530 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
531 IXGBE_WRITE_FLUSH(hw);
533 /* Allow module to change analog characteristics (1G->10G) */
536 status = ixgbe_setup_mac_link_82599(hw,
537 IXGBE_LINK_SPEED_10GB_FULL,
539 autoneg_wait_to_complete);
543 /* Flap the tx laser if it has not already been done */
544 hw->mac.ops.flap_tx_laser(hw);
547 * Wait for the controller to acquire link. Per IEEE 802.3ap,
548 * Section 73.10.2, we may have to wait up to 500ms if KR is
549 * attempted. 82599 uses the same timing for 10g SFI.
551 for (i = 0; i < 5; i++) {
552 /* Wait for the link partner to also set speed */
555 /* If we have link, just jump out */
556 status = hw->mac.ops.check_link(hw, &link_speed,
566 if (speed & IXGBE_LINK_SPEED_1GB_FULL) {
568 if (highest_link_speed == IXGBE_LINK_SPEED_UNKNOWN)
569 highest_link_speed = IXGBE_LINK_SPEED_1GB_FULL;
571 /* If we already have link at this speed, just jump out */
572 status = hw->mac.ops.check_link(hw, &link_speed, &link_up,
577 if ((link_speed == IXGBE_LINK_SPEED_1GB_FULL) && link_up)
580 /* Set the module link speed */
581 esdp_reg &= ~IXGBE_ESDP_SDP5;
582 esdp_reg |= IXGBE_ESDP_SDP5_DIR;
583 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
584 IXGBE_WRITE_FLUSH(hw);
586 /* Allow module to change analog characteristics (10G->1G) */
589 status = ixgbe_setup_mac_link_82599(hw,
590 IXGBE_LINK_SPEED_1GB_FULL,
592 autoneg_wait_to_complete);
596 /* Flap the tx laser if it has not already been done */
597 hw->mac.ops.flap_tx_laser(hw);
599 /* Wait for the link partner to also set speed */
602 /* If we have link, just jump out */
603 status = hw->mac.ops.check_link(hw, &link_speed, &link_up,
613 * We didn't get link. Configure back to the highest speed we tried,
614 * (if there was more than one). We call ourselves back with just the
615 * single highest speed that the user requested.
618 status = ixgbe_setup_mac_link_multispeed_fiber(hw,
621 autoneg_wait_to_complete);
624 /* Set autoneg_advertised value based on input link speed */
625 hw->phy.autoneg_advertised = 0;
627 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
628 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_10GB_FULL;
630 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
631 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_1GB_FULL;
637 * ixgbe_setup_mac_link_smartspeed - Set MAC link speed using SmartSpeed
638 * @hw: pointer to hardware structure
639 * @speed: new link speed
640 * @autoneg: true if autonegotiation enabled
641 * @autoneg_wait_to_complete: true when waiting for completion is needed
643 * Implements the Intel SmartSpeed algorithm.
645 static s32 ixgbe_setup_mac_link_smartspeed(struct ixgbe_hw *hw,
646 ixgbe_link_speed speed, bool autoneg,
647 bool autoneg_wait_to_complete)
650 ixgbe_link_speed link_speed = IXGBE_LINK_SPEED_UNKNOWN;
652 bool link_up = false;
653 u32 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
655 /* Set autoneg_advertised value based on input link speed */
656 hw->phy.autoneg_advertised = 0;
658 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
659 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_10GB_FULL;
661 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
662 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_1GB_FULL;
664 if (speed & IXGBE_LINK_SPEED_100_FULL)
665 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_100_FULL;
668 * Implement Intel SmartSpeed algorithm. SmartSpeed will reduce the
669 * autoneg advertisement if link is unable to be established at the
670 * highest negotiated rate. This can sometimes happen due to integrity
671 * issues with the physical media connection.
674 /* First, try to get link with full advertisement */
675 hw->phy.smart_speed_active = false;
676 for (j = 0; j < IXGBE_SMARTSPEED_MAX_RETRIES; j++) {
677 status = ixgbe_setup_mac_link_82599(hw, speed, autoneg,
678 autoneg_wait_to_complete);
683 * Wait for the controller to acquire link. Per IEEE 802.3ap,
684 * Section 73.10.2, we may have to wait up to 500ms if KR is
685 * attempted, or 200ms if KX/KX4/BX/BX4 is attempted, per
686 * Table 9 in the AN MAS.
688 for (i = 0; i < 5; i++) {
691 /* If we have link, just jump out */
692 status = hw->mac.ops.check_link(hw, &link_speed,
703 * We didn't get link. If we advertised KR plus one of KX4/KX
704 * (or BX4/BX), then disable KR and try again.
706 if (((autoc_reg & IXGBE_AUTOC_KR_SUPP) == 0) ||
707 ((autoc_reg & IXGBE_AUTOC_KX4_KX_SUPP_MASK) == 0))
710 /* Turn SmartSpeed on to disable KR support */
711 hw->phy.smart_speed_active = true;
712 status = ixgbe_setup_mac_link_82599(hw, speed, autoneg,
713 autoneg_wait_to_complete);
718 * Wait for the controller to acquire link. 600ms will allow for
719 * the AN link_fail_inhibit_timer as well for multiple cycles of
720 * parallel detect, both 10g and 1g. This allows for the maximum
721 * connect attempts as defined in the AN MAS table 73-7.
723 for (i = 0; i < 6; i++) {
726 /* If we have link, just jump out */
727 status = hw->mac.ops.check_link(hw, &link_speed,
736 /* We didn't get link. Turn SmartSpeed back off. */
737 hw->phy.smart_speed_active = false;
738 status = ixgbe_setup_mac_link_82599(hw, speed, autoneg,
739 autoneg_wait_to_complete);
742 if (link_up && (link_speed == IXGBE_LINK_SPEED_1GB_FULL))
743 hw_dbg(hw, "Smartspeed has downgraded the link speed from "
744 "the maximum advertised\n");
749 * ixgbe_setup_mac_link_82599 - Set MAC link speed
750 * @hw: pointer to hardware structure
751 * @speed: new link speed
752 * @autoneg: true if autonegotiation enabled
753 * @autoneg_wait_to_complete: true when waiting for completion is needed
755 * Set the link speed in the AUTOC register and restarts link.
757 static s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw,
758 ixgbe_link_speed speed, bool autoneg,
759 bool autoneg_wait_to_complete)
762 u32 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
763 u32 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
764 u32 start_autoc = autoc;
766 u32 link_mode = autoc & IXGBE_AUTOC_LMS_MASK;
767 u32 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;
768 u32 pma_pmd_10g_serial = autoc2 & IXGBE_AUTOC2_10G_SERIAL_PMA_PMD_MASK;
771 ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN;
773 /* Check to see if speed passed in is supported. */
774 hw->mac.ops.get_link_capabilities(hw, &link_capabilities, &autoneg);
775 speed &= link_capabilities;
777 if (speed == IXGBE_LINK_SPEED_UNKNOWN) {
778 status = IXGBE_ERR_LINK_SETUP;
782 /* Use stored value (EEPROM defaults) of AUTOC to find KR/KX4 support*/
783 if (hw->mac.orig_link_settings_stored)
784 orig_autoc = hw->mac.orig_autoc;
788 if (link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR ||
789 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
790 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
791 /* Set KX4/KX/KR support according to speed requested */
792 autoc &= ~(IXGBE_AUTOC_KX4_KX_SUPP_MASK | IXGBE_AUTOC_KR_SUPP);
793 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
794 if (orig_autoc & IXGBE_AUTOC_KX4_SUPP)
795 autoc |= IXGBE_AUTOC_KX4_SUPP;
796 if ((orig_autoc & IXGBE_AUTOC_KR_SUPP) &&
797 (hw->phy.smart_speed_active == false))
798 autoc |= IXGBE_AUTOC_KR_SUPP;
799 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
800 autoc |= IXGBE_AUTOC_KX_SUPP;
801 } else if ((pma_pmd_1g == IXGBE_AUTOC_1G_SFI) &&
802 (link_mode == IXGBE_AUTOC_LMS_1G_LINK_NO_AN ||
803 link_mode == IXGBE_AUTOC_LMS_1G_AN)) {
804 /* Switch from 1G SFI to 10G SFI if requested */
805 if ((speed == IXGBE_LINK_SPEED_10GB_FULL) &&
806 (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI)) {
807 autoc &= ~IXGBE_AUTOC_LMS_MASK;
808 autoc |= IXGBE_AUTOC_LMS_10G_SERIAL;
810 } else if ((pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI) &&
811 (link_mode == IXGBE_AUTOC_LMS_10G_SERIAL)) {
812 /* Switch from 10G SFI to 1G SFI if requested */
813 if ((speed == IXGBE_LINK_SPEED_1GB_FULL) &&
814 (pma_pmd_1g == IXGBE_AUTOC_1G_SFI)) {
815 autoc &= ~IXGBE_AUTOC_LMS_MASK;
817 autoc |= IXGBE_AUTOC_LMS_1G_AN;
819 autoc |= IXGBE_AUTOC_LMS_1G_LINK_NO_AN;
823 if (autoc != start_autoc) {
825 autoc |= IXGBE_AUTOC_AN_RESTART;
826 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc);
828 /* Only poll for autoneg to complete if specified to do so */
829 if (autoneg_wait_to_complete) {
830 if (link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR ||
831 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
832 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
833 links_reg = 0; /*Just in case Autoneg time=0*/
834 for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
836 IXGBE_READ_REG(hw, IXGBE_LINKS);
837 if (links_reg & IXGBE_LINKS_KX_AN_COMP)
841 if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
843 IXGBE_ERR_AUTONEG_NOT_COMPLETE;
844 hw_dbg(hw, "Autoneg did not "
850 /* Add delay to filter out noises during initial link setup */
859 * ixgbe_setup_copper_link_82599 - Set the PHY autoneg advertised field
860 * @hw: pointer to hardware structure
861 * @speed: new link speed
862 * @autoneg: true if autonegotiation enabled
863 * @autoneg_wait_to_complete: true if waiting is needed to complete
865 * Restarts link on PHY and MAC based on settings passed in.
867 static s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw,
868 ixgbe_link_speed speed,
870 bool autoneg_wait_to_complete)
874 /* Setup the PHY according to input speed */
875 status = hw->phy.ops.setup_link_speed(hw, speed, autoneg,
876 autoneg_wait_to_complete);
878 ixgbe_start_mac_link_82599(hw, autoneg_wait_to_complete);
884 * ixgbe_reset_hw_82599 - Perform hardware reset
885 * @hw: pointer to hardware structure
887 * Resets the hardware by resetting the transmit and receive units, masks
888 * and clears all interrupts, perform a PHY reset, and perform a link (MAC)
891 static s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw)
899 /* Call adapter stop to disable tx/rx and clear interrupts */
900 hw->mac.ops.stop_adapter(hw);
902 /* PHY ops must be identified and initialized prior to reset */
904 /* Identify PHY and related function pointers */
905 status = hw->phy.ops.init(hw);
907 if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
910 /* Setup SFP module if there is one present. */
911 if (hw->phy.sfp_setup_needed) {
912 status = hw->mac.ops.setup_sfp(hw);
913 hw->phy.sfp_setup_needed = false;
916 if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
920 if (hw->phy.reset_disable == false && hw->phy.ops.reset != NULL)
921 hw->phy.ops.reset(hw);
924 * Prevent the PCI-E bus from from hanging by disabling PCI-E master
925 * access and verify no pending requests before reset
927 ixgbe_disable_pcie_master(hw);
931 * Issue global reset to the MAC. This needs to be a SW reset.
932 * If link reset is used, it might reset the MAC when mng is using it
934 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
935 IXGBE_WRITE_REG(hw, IXGBE_CTRL, (ctrl | IXGBE_CTRL_RST));
936 IXGBE_WRITE_FLUSH(hw);
938 /* Poll for reset bit to self-clear indicating reset is complete */
939 for (i = 0; i < 10; i++) {
941 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
942 if (!(ctrl & IXGBE_CTRL_RST))
945 if (ctrl & IXGBE_CTRL_RST) {
946 status = IXGBE_ERR_RESET_FAILED;
947 hw_dbg(hw, "Reset polling failed to complete.\n");
951 * Double resets are required for recovery from certain error
952 * conditions. Between resets, it is necessary to stall to allow time
953 * for any pending HW events to complete. We use 1usec since that is
954 * what is needed for ixgbe_disable_pcie_master(). The second reset
955 * then clears out any effects of those events.
957 if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
958 hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
966 * Store the original AUTOC/AUTOC2 values if they have not been
967 * stored off yet. Otherwise restore the stored original
968 * values since the reset operation sets back to defaults.
970 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
971 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
972 if (hw->mac.orig_link_settings_stored == false) {
973 hw->mac.orig_autoc = autoc;
974 hw->mac.orig_autoc2 = autoc2;
975 hw->mac.orig_link_settings_stored = true;
977 if (autoc != hw->mac.orig_autoc)
978 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, (hw->mac.orig_autoc |
979 IXGBE_AUTOC_AN_RESTART));
981 if ((autoc2 & IXGBE_AUTOC2_UPPER_MASK) !=
982 (hw->mac.orig_autoc2 & IXGBE_AUTOC2_UPPER_MASK)) {
983 autoc2 &= ~IXGBE_AUTOC2_UPPER_MASK;
984 autoc2 |= (hw->mac.orig_autoc2 &
985 IXGBE_AUTOC2_UPPER_MASK);
986 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2);
990 /* Store the permanent mac address */
991 hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
994 * Store MAC address from RAR0, clear receive address registers, and
995 * clear the multicast table. Also reset num_rar_entries to 128,
996 * since we modify this value when programming the SAN MAC address.
998 hw->mac.num_rar_entries = 128;
999 hw->mac.ops.init_rx_addrs(hw);
1001 /* Store the permanent SAN mac address */
1002 hw->mac.ops.get_san_mac_addr(hw, hw->mac.san_addr);
1004 /* Add the SAN MAC address to the RAR only if it's a valid address */
1005 if (ixgbe_validate_mac_addr(hw->mac.san_addr) == 0) {
1006 hw->mac.ops.set_rar(hw, hw->mac.num_rar_entries - 1,
1007 hw->mac.san_addr, 0, IXGBE_RAH_AV);
1009 /* Reserve the last RAR for the SAN MAC address */
1010 hw->mac.num_rar_entries--;
1013 /* Store the alternative WWNN/WWPN prefix */
1014 hw->mac.ops.get_wwn_prefix(hw, &hw->mac.wwnn_prefix,
1015 &hw->mac.wwpn_prefix);
1022 * ixgbe_reinit_fdir_tables_82599 - Reinitialize Flow Director tables.
1023 * @hw: pointer to hardware structure
1025 s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw)
1028 u32 fdirctrl = IXGBE_READ_REG(hw, IXGBE_FDIRCTRL);
1029 fdirctrl &= ~IXGBE_FDIRCTRL_INIT_DONE;
1032 * Before starting reinitialization process,
1033 * FDIRCMD.CMD must be zero.
1035 for (i = 0; i < IXGBE_FDIRCMD_CMD_POLL; i++) {
1036 if (!(IXGBE_READ_REG(hw, IXGBE_FDIRCMD) &
1037 IXGBE_FDIRCMD_CMD_MASK))
1041 if (i >= IXGBE_FDIRCMD_CMD_POLL) {
1042 hw_dbg(hw, "Flow Director previous command isn't complete, "
1043 "aborting table re-initialization.\n");
1044 return IXGBE_ERR_FDIR_REINIT_FAILED;
1047 IXGBE_WRITE_REG(hw, IXGBE_FDIRFREE, 0);
1048 IXGBE_WRITE_FLUSH(hw);
1050 * 82599 adapters flow director init flow cannot be restarted,
1051 * Workaround 82599 silicon errata by performing the following steps
1052 * before re-writing the FDIRCTRL control register with the same value.
1053 * - write 1 to bit 8 of FDIRCMD register &
1054 * - write 0 to bit 8 of FDIRCMD register
1056 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1057 (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) |
1058 IXGBE_FDIRCMD_CLEARHT));
1059 IXGBE_WRITE_FLUSH(hw);
1060 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1061 (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) &
1062 ~IXGBE_FDIRCMD_CLEARHT));
1063 IXGBE_WRITE_FLUSH(hw);
1065 * Clear FDIR Hash register to clear any leftover hashes
1066 * waiting to be programmed.
1068 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, 0x00);
1069 IXGBE_WRITE_FLUSH(hw);
1071 IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
1072 IXGBE_WRITE_FLUSH(hw);
1074 /* Poll init-done after we write FDIRCTRL register */
1075 for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
1076 if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) &
1077 IXGBE_FDIRCTRL_INIT_DONE)
1081 if (i >= IXGBE_FDIR_INIT_DONE_POLL) {
1082 hw_dbg(hw, "Flow Director Signature poll time exceeded!\n");
1083 return IXGBE_ERR_FDIR_REINIT_FAILED;
1086 /* Clear FDIR statistics registers (read to clear) */
1087 IXGBE_READ_REG(hw, IXGBE_FDIRUSTAT);
1088 IXGBE_READ_REG(hw, IXGBE_FDIRFSTAT);
1089 IXGBE_READ_REG(hw, IXGBE_FDIRMATCH);
1090 IXGBE_READ_REG(hw, IXGBE_FDIRMISS);
1091 IXGBE_READ_REG(hw, IXGBE_FDIRLEN);
1097 * ixgbe_init_fdir_signature_82599 - Initialize Flow Director signature filters
1098 * @hw: pointer to hardware structure
1099 * @pballoc: which mode to allocate filters with
1101 s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 pballoc)
1108 * Before enabling Flow Director, the Rx Packet Buffer size
1109 * must be reduced. The new value is the current size minus
1110 * flow director memory usage size.
1112 pbsize = (1 << (IXGBE_FDIR_PBALLOC_SIZE_SHIFT + pballoc));
1113 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(0),
1114 (IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(0)) - pbsize));
1117 * The defaults in the HW for RX PB 1-7 are not zero and so should be
1118 * initialized to zero for non DCB mode otherwise actual total RX PB
1119 * would be bigger than programmed and filter space would run into
1122 for (i = 1; i < 8; i++)
1123 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), 0);
1125 /* Send interrupt when 64 filters are left */
1126 fdirctrl |= 4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT;
1128 /* Set the maximum length per hash bucket to 0xA filters */
1129 fdirctrl |= 0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT;
1132 case IXGBE_FDIR_PBALLOC_64K:
1133 /* 8k - 1 signature filters */
1134 fdirctrl |= IXGBE_FDIRCTRL_PBALLOC_64K;
1136 case IXGBE_FDIR_PBALLOC_128K:
1137 /* 16k - 1 signature filters */
1138 fdirctrl |= IXGBE_FDIRCTRL_PBALLOC_128K;
1140 case IXGBE_FDIR_PBALLOC_256K:
1141 /* 32k - 1 signature filters */
1142 fdirctrl |= IXGBE_FDIRCTRL_PBALLOC_256K;
1146 return IXGBE_ERR_CONFIG;
1149 /* Move the flexible bytes to use the ethertype - shift 6 words */
1150 fdirctrl |= (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT);
1153 /* Prime the keys for hashing */
1154 IXGBE_WRITE_REG(hw, IXGBE_FDIRHKEY, IXGBE_ATR_BUCKET_HASH_KEY);
1155 IXGBE_WRITE_REG(hw, IXGBE_FDIRSKEY, IXGBE_ATR_SIGNATURE_HASH_KEY);
1158 * Poll init-done after we write the register. Estimated times:
1159 * 10G: PBALLOC = 11b, timing is 60us
1160 * 1G: PBALLOC = 11b, timing is 600us
1161 * 100M: PBALLOC = 11b, timing is 6ms
1163 * Multiple these timings by 4 if under full Rx load
1165 * So we'll poll for IXGBE_FDIR_INIT_DONE_POLL times, sleeping for
1166 * 1 msec per poll time. If we're at line rate and drop to 100M, then
1167 * this might not finish in our poll time, but we can live with that
1170 IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
1171 IXGBE_WRITE_FLUSH(hw);
1172 for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
1173 if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) &
1174 IXGBE_FDIRCTRL_INIT_DONE)
1178 if (i >= IXGBE_FDIR_INIT_DONE_POLL)
1179 hw_dbg(hw, "Flow Director Signature poll time exceeded!\n");
1185 * ixgbe_init_fdir_perfect_82599 - Initialize Flow Director perfect filters
1186 * @hw: pointer to hardware structure
1187 * @pballoc: which mode to allocate filters with
1189 s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 pballoc)
1196 * Before enabling Flow Director, the Rx Packet Buffer size
1197 * must be reduced. The new value is the current size minus
1198 * flow director memory usage size.
1200 pbsize = (1 << (IXGBE_FDIR_PBALLOC_SIZE_SHIFT + pballoc));
1201 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(0),
1202 (IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(0)) - pbsize));
1205 * The defaults in the HW for RX PB 1-7 are not zero and so should be
1206 * initialized to zero for non DCB mode otherwise actual total RX PB
1207 * would be bigger than programmed and filter space would run into
1210 for (i = 1; i < 8; i++)
1211 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), 0);
1213 /* Send interrupt when 64 filters are left */
1214 fdirctrl |= 4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT;
1216 /* Initialize the drop queue to Rx queue 127 */
1217 fdirctrl |= (127 << IXGBE_FDIRCTRL_DROP_Q_SHIFT);
1220 case IXGBE_FDIR_PBALLOC_64K:
1221 /* 2k - 1 perfect filters */
1222 fdirctrl |= IXGBE_FDIRCTRL_PBALLOC_64K;
1224 case IXGBE_FDIR_PBALLOC_128K:
1225 /* 4k - 1 perfect filters */
1226 fdirctrl |= IXGBE_FDIRCTRL_PBALLOC_128K;
1228 case IXGBE_FDIR_PBALLOC_256K:
1229 /* 8k - 1 perfect filters */
1230 fdirctrl |= IXGBE_FDIRCTRL_PBALLOC_256K;
1234 return IXGBE_ERR_CONFIG;
1237 /* Turn perfect match filtering on */
1238 fdirctrl |= IXGBE_FDIRCTRL_PERFECT_MATCH;
1239 fdirctrl |= IXGBE_FDIRCTRL_REPORT_STATUS;
1241 /* Move the flexible bytes to use the ethertype - shift 6 words */
1242 fdirctrl |= (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT);
1244 /* Prime the keys for hashing */
1245 IXGBE_WRITE_REG(hw, IXGBE_FDIRHKEY, IXGBE_ATR_BUCKET_HASH_KEY);
1246 IXGBE_WRITE_REG(hw, IXGBE_FDIRSKEY, IXGBE_ATR_SIGNATURE_HASH_KEY);
1249 * Poll init-done after we write the register. Estimated times:
1250 * 10G: PBALLOC = 11b, timing is 60us
1251 * 1G: PBALLOC = 11b, timing is 600us
1252 * 100M: PBALLOC = 11b, timing is 6ms
1254 * Multiple these timings by 4 if under full Rx load
1256 * So we'll poll for IXGBE_FDIR_INIT_DONE_POLL times, sleeping for
1257 * 1 msec per poll time. If we're at line rate and drop to 100M, then
1258 * this might not finish in our poll time, but we can live with that
1262 /* Set the maximum length per hash bucket to 0xA filters */
1263 fdirctrl |= (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT);
1265 IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
1266 IXGBE_WRITE_FLUSH(hw);
1267 for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
1268 if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) &
1269 IXGBE_FDIRCTRL_INIT_DONE)
1273 if (i >= IXGBE_FDIR_INIT_DONE_POLL)
1274 hw_dbg(hw, "Flow Director Perfect poll time exceeded!\n");
1281 * ixgbe_atr_compute_hash_82599 - Compute the hashes for SW ATR
1282 * @stream: input bitstream to compute the hash on
1283 * @key: 32-bit hash key
1285 static u32 ixgbe_atr_compute_hash_82599(union ixgbe_atr_input *atr_input,
1289 * The algorithm is as follows:
1290 * Hash[15:0] = Sum { S[n] x K[n+16] }, n = 0...350
1291 * where Sum {A[n]}, n = 0...n is bitwise XOR of A[0], A[1]...A[n]
1292 * and A[n] x B[n] is bitwise AND between same length strings
1294 * K[n] is 16 bits, defined as:
1295 * for n modulo 32 >= 15, K[n] = K[n % 32 : (n % 32) - 15]
1296 * for n modulo 32 < 15, K[n] =
1297 * K[(n % 32:0) | (31:31 - (14 - (n % 32)))]
1299 * S[n] is 16 bits, defined as:
1300 * for n >= 15, S[n] = S[n:n - 15]
1301 * for n < 15, S[n] = S[(n:0) | (350:350 - (14 - n))]
1303 * To simplify for programming, the algorithm is implemented
1304 * in software this way:
1306 * key[31:0], hi_hash_dword[31:0], lo_hash_dword[31:0], hash[15:0]
1308 * for (i = 0; i < 352; i+=32)
1309 * hi_hash_dword[31:0] ^= Stream[(i+31):i];
1311 * lo_hash_dword[15:0] ^= Stream[15:0];
1312 * lo_hash_dword[15:0] ^= hi_hash_dword[31:16];
1313 * lo_hash_dword[31:16] ^= hi_hash_dword[15:0];
1315 * hi_hash_dword[31:0] ^= Stream[351:320];
1318 * hash[15:0] ^= Stream[15:0];
1320 * for (i = 0; i < 16; i++) {
1322 * hash[15:0] ^= lo_hash_dword[(i+15):i];
1324 * hash[15:0] ^= hi_hash_dword[(i+15):i];
1328 __be32 common_hash_dword = 0;
1329 u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
1330 u32 hash_result = 0;
1333 /* record the flow_vm_vlan bits as they are a key part to the hash */
1334 flow_vm_vlan = ntohl(atr_input->dword_stream[0]);
1336 /* generate common hash dword */
1337 for (i = 10; i; i -= 2)
1338 common_hash_dword ^= atr_input->dword_stream[i] ^
1339 atr_input->dword_stream[i - 1];
1341 hi_hash_dword = ntohl(common_hash_dword);
1343 /* low dword is word swapped version of common */
1344 lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
1346 /* apply flow ID/VM pool/VLAN ID bits to hash words */
1347 hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);
1349 /* Process bits 0 and 16 */
1350 if (key & 0x0001) hash_result ^= lo_hash_dword;
1351 if (key & 0x00010000) hash_result ^= hi_hash_dword;
1354 * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
1355 * delay this because bit 0 of the stream should not be processed
1356 * so we do not add the vlan until after bit 0 was processed
1358 lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);
1361 /* process the remaining 30 bits in the key 2 bits at a time */
1362 for (i = 15; i; i-- ) {
1363 if (key & (0x0001 << i)) hash_result ^= lo_hash_dword >> i;
1364 if (key & (0x00010000 << i)) hash_result ^= hi_hash_dword >> i;
1367 return hash_result & IXGBE_ATR_HASH_MASK;
1371 * These defines allow us to quickly generate all of the necessary instructions
1372 * in the function below by simply calling out IXGBE_COMPUTE_SIG_HASH_ITERATION
1373 * for values 0 through 15
1375 #define IXGBE_ATR_COMMON_HASH_KEY \
1376 (IXGBE_ATR_BUCKET_HASH_KEY & IXGBE_ATR_SIGNATURE_HASH_KEY)
1377 #define IXGBE_COMPUTE_SIG_HASH_ITERATION(_n) \
1380 if (IXGBE_ATR_COMMON_HASH_KEY & (0x01 << n)) \
1381 common_hash ^= lo_hash_dword >> n; \
1382 else if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << n)) \
1383 bucket_hash ^= lo_hash_dword >> n; \
1384 else if (IXGBE_ATR_SIGNATURE_HASH_KEY & (0x01 << n)) \
1385 sig_hash ^= lo_hash_dword << (16 - n); \
1386 if (IXGBE_ATR_COMMON_HASH_KEY & (0x01 << (n + 16))) \
1387 common_hash ^= hi_hash_dword >> n; \
1388 else if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << (n + 16))) \
1389 bucket_hash ^= hi_hash_dword >> n; \
1390 else if (IXGBE_ATR_SIGNATURE_HASH_KEY & (0x01 << (n + 16))) \
1391 sig_hash ^= hi_hash_dword << (16 - n); \
1395 * ixgbe_atr_compute_sig_hash_82599 - Compute the signature hash
1396 * @stream: input bitstream to compute the hash on
1398 * This function is almost identical to the function above but contains
1399 * several optomizations such as unwinding all of the loops, letting the
1400 * compiler work out all of the conditional ifs since the keys are static
1401 * defines, and computing two keys at once since the hashed dword stream
1402 * will be the same for both keys.
1404 static u32 ixgbe_atr_compute_sig_hash_82599(union ixgbe_atr_hash_dword input,
1405 union ixgbe_atr_hash_dword common)
1407 u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
1408 u32 sig_hash = 0, bucket_hash = 0, common_hash = 0;
1410 /* record the flow_vm_vlan bits as they are a key part to the hash */
1411 flow_vm_vlan = ntohl(input.dword);
1413 /* generate common hash dword */
1414 hi_hash_dword = ntohl(common.dword);
1416 /* low dword is word swapped version of common */
1417 lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
1419 /* apply flow ID/VM pool/VLAN ID bits to hash words */
1420 hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);
1422 /* Process bits 0 and 16 */
1423 IXGBE_COMPUTE_SIG_HASH_ITERATION(0);
1426 * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
1427 * delay this because bit 0 of the stream should not be processed
1428 * so we do not add the vlan until after bit 0 was processed
1430 lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);
1432 /* Process remaining 30 bit of the key */
1433 IXGBE_COMPUTE_SIG_HASH_ITERATION(1);
1434 IXGBE_COMPUTE_SIG_HASH_ITERATION(2);
1435 IXGBE_COMPUTE_SIG_HASH_ITERATION(3);
1436 IXGBE_COMPUTE_SIG_HASH_ITERATION(4);
1437 IXGBE_COMPUTE_SIG_HASH_ITERATION(5);
1438 IXGBE_COMPUTE_SIG_HASH_ITERATION(6);
1439 IXGBE_COMPUTE_SIG_HASH_ITERATION(7);
1440 IXGBE_COMPUTE_SIG_HASH_ITERATION(8);
1441 IXGBE_COMPUTE_SIG_HASH_ITERATION(9);
1442 IXGBE_COMPUTE_SIG_HASH_ITERATION(10);
1443 IXGBE_COMPUTE_SIG_HASH_ITERATION(11);
1444 IXGBE_COMPUTE_SIG_HASH_ITERATION(12);
1445 IXGBE_COMPUTE_SIG_HASH_ITERATION(13);
1446 IXGBE_COMPUTE_SIG_HASH_ITERATION(14);
1447 IXGBE_COMPUTE_SIG_HASH_ITERATION(15);
1449 /* combine common_hash result with signature and bucket hashes */
1450 bucket_hash ^= common_hash;
1451 bucket_hash &= IXGBE_ATR_HASH_MASK;
1453 sig_hash ^= common_hash << 16;
1454 sig_hash &= IXGBE_ATR_HASH_MASK << 16;
1456 /* return completed signature hash */
1457 return sig_hash ^ bucket_hash;
1461 * ixgbe_atr_add_signature_filter_82599 - Adds a signature hash filter
1462 * @hw: pointer to hardware structure
1463 * @input: unique input dword
1464 * @common: compressed common input dword
1465 * @queue: queue index to direct traffic to
1467 s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
1468 union ixgbe_atr_hash_dword input,
1469 union ixgbe_atr_hash_dword common,
1476 * Get the flow_type in order to program FDIRCMD properly
1477 * lowest 2 bits are FDIRCMD.L4TYPE, third lowest bit is FDIRCMD.IPV6
1479 switch (input.formatted.flow_type) {
1480 case IXGBE_ATR_FLOW_TYPE_TCPV4:
1481 case IXGBE_ATR_FLOW_TYPE_UDPV4:
1482 case IXGBE_ATR_FLOW_TYPE_SCTPV4:
1483 case IXGBE_ATR_FLOW_TYPE_TCPV6:
1484 case IXGBE_ATR_FLOW_TYPE_UDPV6:
1485 case IXGBE_ATR_FLOW_TYPE_SCTPV6:
1488 hw_dbg(hw, " Error on flow type input\n");
1489 return IXGBE_ERR_CONFIG;
1492 /* configure FDIRCMD register */
1493 fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE |
1494 IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
1495 fdircmd |= input.formatted.flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
1496 fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
1499 * The lower 32-bits of fdirhashcmd is for FDIRHASH, the upper 32-bits
1500 * is for FDIRCMD. Then do a 64-bit register write from FDIRHASH.
1502 fdirhashcmd = (u64)fdircmd << 32;
1503 fdirhashcmd |= ixgbe_atr_compute_sig_hash_82599(input, common);
1505 IXGBE_WRITE_REG64(hw, IXGBE_FDIRHASH, fdirhashcmd);
1507 hw_dbg(hw, "Tx Queue=%x hash=%x\n", queue, (u32)fdirhashcmd);
1513 * ixgbe_get_fdirtcpm_82599 - generate a tcp port from atr_input_masks
1514 * @input_mask: mask to be bit swapped
1516 * The source and destination port masks for flow director are bit swapped
1517 * in that bit 15 effects bit 0, 14 effects 1, 13, 2 etc. In order to
1518 * generate a correctly swapped value we need to bit swap the mask and that
1519 * is what is accomplished by this function.
1521 static u32 ixgbe_get_fdirtcpm_82599(struct ixgbe_atr_input_masks *input_masks)
1523 u32 mask = ntohs(input_masks->dst_port_mask);
1524 mask <<= IXGBE_FDIRTCPM_DPORTM_SHIFT;
1525 mask |= ntohs(input_masks->src_port_mask);
1526 mask = ((mask & 0x55555555) << 1) | ((mask & 0xAAAAAAAA) >> 1);
1527 mask = ((mask & 0x33333333) << 2) | ((mask & 0xCCCCCCCC) >> 2);
1528 mask = ((mask & 0x0F0F0F0F) << 4) | ((mask & 0xF0F0F0F0) >> 4);
1529 return ((mask & 0x00FF00FF) << 8) | ((mask & 0xFF00FF00) >> 8);
1533 * These two macros are meant to address the fact that we have registers
1534 * that are either all or in part big-endian. As a result on big-endian
1535 * systems we will end up byte swapping the value to little-endian before
1536 * it is byte swapped again and written to the hardware in the original
1537 * big-endian format.
1539 #define IXGBE_STORE_AS_BE32(_value) \
1540 (((u32)(_value) >> 24) | (((u32)(_value) & 0x00FF0000) >> 8) | \
1541 (((u32)(_value) & 0x0000FF00) << 8) | ((u32)(_value) << 24))
1543 #define IXGBE_WRITE_REG_BE32(a, reg, value) \
1544 IXGBE_WRITE_REG((a), (reg), IXGBE_STORE_AS_BE32(ntohl(value)))
1546 #define IXGBE_STORE_AS_BE16(_value) \
1547 (((u16)(_value) >> 8) | ((u16)(_value) << 8))
1550 * ixgbe_fdir_add_perfect_filter_82599 - Adds a perfect filter
1551 * @hw: pointer to hardware structure
1552 * @input: input bitstream
1553 * @input_masks: bitwise masks for relevant fields
1554 * @soft_id: software index into the silicon hash tables for filter storage
1555 * @queue: queue index to direct traffic to
1557 * Note that the caller to this function must lock before calling, since the
1558 * hardware writes must be protected from one another.
1560 s32 ixgbe_fdir_add_perfect_filter_82599(struct ixgbe_hw *hw,
1561 union ixgbe_atr_input *input,
1562 struct ixgbe_atr_input_masks *input_masks,
1563 u16 soft_id, u8 queue)
1567 u32 fdirport, fdirtcpm;
1569 /* start with VLAN, flex bytes, VM pool, and IPv6 destination masked */
1570 u32 fdirm = IXGBE_FDIRM_VLANID | IXGBE_FDIRM_VLANP | IXGBE_FDIRM_FLEX |
1571 IXGBE_FDIRM_POOL | IXGBE_FDIRM_DIPv6;
1574 * Check flow_type formatting, and bail out before we touch the hardware
1575 * if there's a configuration issue
1577 switch (input->formatted.flow_type) {
1578 case IXGBE_ATR_FLOW_TYPE_IPV4:
1579 /* use the L4 protocol mask for raw IPv4/IPv6 traffic */
1580 fdirm |= IXGBE_FDIRM_L4P;
1581 case IXGBE_ATR_FLOW_TYPE_SCTPV4:
1582 if (input_masks->dst_port_mask || input_masks->src_port_mask) {
1583 hw_dbg(hw, " Error on src/dst port mask\n");
1584 return IXGBE_ERR_CONFIG;
1586 case IXGBE_ATR_FLOW_TYPE_TCPV4:
1587 case IXGBE_ATR_FLOW_TYPE_UDPV4:
1590 hw_dbg(hw, " Error on flow type input\n");
1591 return IXGBE_ERR_CONFIG;
1595 * Program the relevant mask registers. If src/dst_port or src/dst_addr
1596 * are zero, then assume a full mask for that field. Also assume that
1597 * a VLAN of 0 is unspecified, so mask that out as well. L4type
1598 * cannot be masked out in this implementation.
1600 * This also assumes IPv4 only. IPv6 masking isn't supported at this
1605 switch (ntohs(input_masks->vlan_id_mask) & 0xEFFF) {
1607 /* Unmask VLAN ID - bit 0 and fall through to unmask prio */
1608 fdirm &= ~IXGBE_FDIRM_VLANID;
1610 /* Unmask VLAN prio - bit 1 */
1611 fdirm &= ~IXGBE_FDIRM_VLANP;
1614 /* Unmask VLAN ID - bit 0 */
1615 fdirm &= ~IXGBE_FDIRM_VLANID;
1618 /* do nothing, vlans already masked */
1621 hw_dbg(hw, " Error on VLAN mask\n");
1622 return IXGBE_ERR_CONFIG;
1625 if (input_masks->flex_mask & 0xFFFF) {
1626 if ((input_masks->flex_mask & 0xFFFF) != 0xFFFF) {
1627 hw_dbg(hw, " Error on flexible byte mask\n");
1628 return IXGBE_ERR_CONFIG;
1630 /* Unmask Flex Bytes - bit 4 */
1631 fdirm &= ~IXGBE_FDIRM_FLEX;
1634 /* Now mask VM pool and destination IPv6 - bits 5 and 2 */
1635 IXGBE_WRITE_REG(hw, IXGBE_FDIRM, fdirm);
1637 /* store the TCP/UDP port masks, bit reversed from port layout */
1638 fdirtcpm = ixgbe_get_fdirtcpm_82599(input_masks);
1640 /* write both the same so that UDP and TCP use the same mask */
1641 IXGBE_WRITE_REG(hw, IXGBE_FDIRTCPM, ~fdirtcpm);
1642 IXGBE_WRITE_REG(hw, IXGBE_FDIRUDPM, ~fdirtcpm);
1644 /* store source and destination IP masks (big-enian) */
1645 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIP4M,
1646 ~input_masks->src_ip_mask[0]);
1647 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRDIP4M,
1648 ~input_masks->dst_ip_mask[0]);
1650 /* Apply masks to input data */
1651 input->formatted.vlan_id &= input_masks->vlan_id_mask;
1652 input->formatted.flex_bytes &= input_masks->flex_mask;
1653 input->formatted.src_port &= input_masks->src_port_mask;
1654 input->formatted.dst_port &= input_masks->dst_port_mask;
1655 input->formatted.src_ip[0] &= input_masks->src_ip_mask[0];
1656 input->formatted.dst_ip[0] &= input_masks->dst_ip_mask[0];
1658 /* record vlan (little-endian) and flex_bytes(big-endian) */
1660 IXGBE_STORE_AS_BE16(ntohs(input->formatted.flex_bytes));
1661 fdirvlan <<= IXGBE_FDIRVLAN_FLEX_SHIFT;
1662 fdirvlan |= ntohs(input->formatted.vlan_id);
1663 IXGBE_WRITE_REG(hw, IXGBE_FDIRVLAN, fdirvlan);
1665 /* record source and destination port (little-endian)*/
1666 fdirport = ntohs(input->formatted.dst_port);
1667 fdirport <<= IXGBE_FDIRPORT_DESTINATION_SHIFT;
1668 fdirport |= ntohs(input->formatted.src_port);
1669 IXGBE_WRITE_REG(hw, IXGBE_FDIRPORT, fdirport);
1671 /* record the first 32 bits of the destination address (big-endian) */
1672 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPDA, input->formatted.dst_ip[0]);
1674 /* record the source address (big-endian) */
1675 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPSA, input->formatted.src_ip[0]);
1677 /* configure FDIRCMD register */
1678 fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE |
1679 IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
1680 fdircmd |= input->formatted.flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
1681 fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
1683 /* we only want the bucket hash so drop the upper 16 bits */
1684 fdirhash = ixgbe_atr_compute_hash_82599(input,
1685 IXGBE_ATR_BUCKET_HASH_KEY);
1686 fdirhash |= soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT;
1688 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
1689 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, fdircmd);
1695 * ixgbe_read_analog_reg8_82599 - Reads 8 bit Omer analog register
1696 * @hw: pointer to hardware structure
1697 * @reg: analog register to read
1700 * Performs read operation to Omer analog register specified.
1702 static s32 ixgbe_read_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 *val)
1706 IXGBE_WRITE_REG(hw, IXGBE_CORECTL, IXGBE_CORECTL_WRITE_CMD |
1708 IXGBE_WRITE_FLUSH(hw);
1710 core_ctl = IXGBE_READ_REG(hw, IXGBE_CORECTL);
1711 *val = (u8)core_ctl;
1717 * ixgbe_write_analog_reg8_82599 - Writes 8 bit Omer analog register
1718 * @hw: pointer to hardware structure
1719 * @reg: atlas register to write
1720 * @val: value to write
1722 * Performs write operation to Omer analog register specified.
1724 static s32 ixgbe_write_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 val)
1728 core_ctl = (reg << 8) | val;
1729 IXGBE_WRITE_REG(hw, IXGBE_CORECTL, core_ctl);
1730 IXGBE_WRITE_FLUSH(hw);
1737 * ixgbe_start_hw_82599 - Prepare hardware for Tx/Rx
1738 * @hw: pointer to hardware structure
1740 * Starts the hardware using the generic start_hw function.
1741 * Then performs device-specific:
1742 * Clears the rate limiter registers.
1744 static s32 ixgbe_start_hw_82599(struct ixgbe_hw *hw)
1749 ret_val = ixgbe_start_hw_generic(hw);
1751 /* Clear the rate limiters */
1752 for (q_num = 0; q_num < hw->mac.max_tx_queues; q_num++) {
1753 IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, q_num);
1754 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, 0);
1756 IXGBE_WRITE_FLUSH(hw);
1758 /* We need to run link autotry after the driver loads */
1759 hw->mac.autotry_restart = true;
1762 ret_val = ixgbe_verify_fw_version_82599(hw);
1768 * ixgbe_identify_phy_82599 - Get physical layer module
1769 * @hw: pointer to hardware structure
1771 * Determines the physical layer module found on the current adapter.
1772 * If PHY already detected, maintains current PHY type in hw struct,
1773 * otherwise executes the PHY detection routine.
1775 s32 ixgbe_identify_phy_82599(struct ixgbe_hw *hw)
1777 s32 status = IXGBE_ERR_PHY_ADDR_INVALID;
1779 /* Detect PHY if not unknown - returns success if already detected. */
1780 status = ixgbe_identify_phy_generic(hw);
1782 /* 82599 10GBASE-T requires an external PHY */
1783 if (hw->mac.ops.get_media_type(hw) == ixgbe_media_type_copper)
1786 status = ixgbe_identify_sfp_module_generic(hw);
1789 /* Set PHY type none if no PHY detected */
1790 if (hw->phy.type == ixgbe_phy_unknown) {
1791 hw->phy.type = ixgbe_phy_none;
1795 /* Return error if SFP module has been detected but is not supported */
1796 if (hw->phy.type == ixgbe_phy_sfp_unsupported)
1797 status = IXGBE_ERR_SFP_NOT_SUPPORTED;
1804 * ixgbe_get_supported_physical_layer_82599 - Returns physical layer type
1805 * @hw: pointer to hardware structure
1807 * Determines physical layer capabilities of the current configuration.
1809 static u32 ixgbe_get_supported_physical_layer_82599(struct ixgbe_hw *hw)
1811 u32 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
1812 u32 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
1813 u32 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
1814 u32 pma_pmd_10g_serial = autoc2 & IXGBE_AUTOC2_10G_SERIAL_PMA_PMD_MASK;
1815 u32 pma_pmd_10g_parallel = autoc & IXGBE_AUTOC_10G_PMA_PMD_MASK;
1816 u32 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;
1817 u16 ext_ability = 0;
1818 u8 comp_codes_10g = 0;
1819 u8 comp_codes_1g = 0;
1821 hw->phy.ops.identify(hw);
1823 switch (hw->phy.type) {
1826 case ixgbe_phy_cu_unknown:
1827 hw->phy.ops.read_reg(hw, MDIO_PMA_EXTABLE, MDIO_MMD_PMAPMD,
1829 if (ext_ability & MDIO_PMA_EXTABLE_10GBT)
1830 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_T;
1831 if (ext_ability & MDIO_PMA_EXTABLE_1000BT)
1832 physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_T;
1833 if (ext_ability & MDIO_PMA_EXTABLE_100BTX)
1834 physical_layer |= IXGBE_PHYSICAL_LAYER_100BASE_TX;
1840 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
1841 case IXGBE_AUTOC_LMS_1G_AN:
1842 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
1843 if (pma_pmd_1g == IXGBE_AUTOC_1G_KX_BX) {
1844 physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_KX |
1845 IXGBE_PHYSICAL_LAYER_1000BASE_BX;
1848 /* SFI mode so read SFP module */
1851 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
1852 if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_CX4)
1853 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_CX4;
1854 else if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_KX4)
1855 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
1856 else if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_XAUI)
1857 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_XAUI;
1860 case IXGBE_AUTOC_LMS_10G_SERIAL:
1861 if (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_KR) {
1862 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KR;
1864 } else if (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI)
1867 case IXGBE_AUTOC_LMS_KX4_KX_KR:
1868 case IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN:
1869 if (autoc & IXGBE_AUTOC_KX_SUPP)
1870 physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_KX;
1871 if (autoc & IXGBE_AUTOC_KX4_SUPP)
1872 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
1873 if (autoc & IXGBE_AUTOC_KR_SUPP)
1874 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KR;
1883 /* SFP check must be done last since DA modules are sometimes used to
1884 * test KR mode - we need to id KR mode correctly before SFP module.
1885 * Call identify_sfp because the pluggable module may have changed */
1886 hw->phy.ops.identify_sfp(hw);
1887 if (hw->phy.sfp_type == ixgbe_sfp_type_not_present)
1890 switch (hw->phy.type) {
1891 case ixgbe_phy_sfp_passive_tyco:
1892 case ixgbe_phy_sfp_passive_unknown:
1893 physical_layer = IXGBE_PHYSICAL_LAYER_SFP_PLUS_CU;
1895 case ixgbe_phy_sfp_ftl_active:
1896 case ixgbe_phy_sfp_active_unknown:
1897 physical_layer = IXGBE_PHYSICAL_LAYER_SFP_ACTIVE_DA;
1899 case ixgbe_phy_sfp_avago:
1900 case ixgbe_phy_sfp_ftl:
1901 case ixgbe_phy_sfp_intel:
1902 case ixgbe_phy_sfp_unknown:
1903 hw->phy.ops.read_i2c_eeprom(hw,
1904 IXGBE_SFF_1GBE_COMP_CODES, &comp_codes_1g);
1905 hw->phy.ops.read_i2c_eeprom(hw,
1906 IXGBE_SFF_10GBE_COMP_CODES, &comp_codes_10g);
1907 if (comp_codes_10g & IXGBE_SFF_10GBASESR_CAPABLE)
1908 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_SR;
1909 else if (comp_codes_10g & IXGBE_SFF_10GBASELR_CAPABLE)
1910 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_LR;
1911 else if (comp_codes_1g & IXGBE_SFF_1GBASET_CAPABLE)
1912 physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_T;
1919 return physical_layer;
1923 * ixgbe_enable_rx_dma_82599 - Enable the Rx DMA unit on 82599
1924 * @hw: pointer to hardware structure
1925 * @regval: register value to write to RXCTRL
1927 * Enables the Rx DMA unit for 82599
1929 static s32 ixgbe_enable_rx_dma_82599(struct ixgbe_hw *hw, u32 regval)
1931 #define IXGBE_MAX_SECRX_POLL 30
1936 * Workaround for 82599 silicon errata when enabling the Rx datapath.
1937 * If traffic is incoming before we enable the Rx unit, it could hang
1938 * the Rx DMA unit. Therefore, make sure the security engine is
1939 * completely disabled prior to enabling the Rx unit.
1941 secrxreg = IXGBE_READ_REG(hw, IXGBE_SECRXCTRL);
1942 secrxreg |= IXGBE_SECRXCTRL_RX_DIS;
1943 IXGBE_WRITE_REG(hw, IXGBE_SECRXCTRL, secrxreg);
1944 for (i = 0; i < IXGBE_MAX_SECRX_POLL; i++) {
1945 secrxreg = IXGBE_READ_REG(hw, IXGBE_SECRXSTAT);
1946 if (secrxreg & IXGBE_SECRXSTAT_SECRX_RDY)
1949 /* Use interrupt-safe sleep just in case */
1953 /* For informational purposes only */
1954 if (i >= IXGBE_MAX_SECRX_POLL)
1955 hw_dbg(hw, "Rx unit being enabled before security "
1956 "path fully disabled. Continuing with init.\n");
1958 IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, regval);
1959 secrxreg = IXGBE_READ_REG(hw, IXGBE_SECRXCTRL);
1960 secrxreg &= ~IXGBE_SECRXCTRL_RX_DIS;
1961 IXGBE_WRITE_REG(hw, IXGBE_SECRXCTRL, secrxreg);
1962 IXGBE_WRITE_FLUSH(hw);
1968 * ixgbe_get_device_caps_82599 - Get additional device capabilities
1969 * @hw: pointer to hardware structure
1970 * @device_caps: the EEPROM word with the extra device capabilities
1972 * This function will read the EEPROM location for the device capabilities,
1973 * and return the word through device_caps.
1975 static s32 ixgbe_get_device_caps_82599(struct ixgbe_hw *hw, u16 *device_caps)
1977 hw->eeprom.ops.read(hw, IXGBE_DEVICE_CAPS, device_caps);
1983 * ixgbe_verify_fw_version_82599 - verify fw version for 82599
1984 * @hw: pointer to hardware structure
1986 * Verifies that installed the firmware version is 0.6 or higher
1987 * for SFI devices. All 82599 SFI devices should have version 0.6 or higher.
1989 * Returns IXGBE_ERR_EEPROM_VERSION if the FW is not present or
1990 * if the FW version is not supported.
1992 static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw)
1994 s32 status = IXGBE_ERR_EEPROM_VERSION;
1995 u16 fw_offset, fw_ptp_cfg_offset;
1998 /* firmware check is only necessary for SFI devices */
1999 if (hw->phy.media_type != ixgbe_media_type_fiber) {
2001 goto fw_version_out;
2004 /* get the offset to the Firmware Module block */
2005 hw->eeprom.ops.read(hw, IXGBE_FW_PTR, &fw_offset);
2007 if ((fw_offset == 0) || (fw_offset == 0xFFFF))
2008 goto fw_version_out;
2010 /* get the offset to the Pass Through Patch Configuration block */
2011 hw->eeprom.ops.read(hw, (fw_offset +
2012 IXGBE_FW_PASSTHROUGH_PATCH_CONFIG_PTR),
2013 &fw_ptp_cfg_offset);
2015 if ((fw_ptp_cfg_offset == 0) || (fw_ptp_cfg_offset == 0xFFFF))
2016 goto fw_version_out;
2018 /* get the firmware version */
2019 hw->eeprom.ops.read(hw, (fw_ptp_cfg_offset +
2020 IXGBE_FW_PATCH_VERSION_4),
2023 if (fw_version > 0x5)
2030 static struct ixgbe_mac_operations mac_ops_82599 = {
2031 .init_hw = &ixgbe_init_hw_generic,
2032 .reset_hw = &ixgbe_reset_hw_82599,
2033 .start_hw = &ixgbe_start_hw_82599,
2034 .clear_hw_cntrs = &ixgbe_clear_hw_cntrs_generic,
2035 .get_media_type = &ixgbe_get_media_type_82599,
2036 .get_supported_physical_layer = &ixgbe_get_supported_physical_layer_82599,
2037 .enable_rx_dma = &ixgbe_enable_rx_dma_82599,
2038 .get_mac_addr = &ixgbe_get_mac_addr_generic,
2039 .get_san_mac_addr = &ixgbe_get_san_mac_addr_generic,
2040 .get_device_caps = &ixgbe_get_device_caps_82599,
2041 .get_wwn_prefix = &ixgbe_get_wwn_prefix_generic,
2042 .stop_adapter = &ixgbe_stop_adapter_generic,
2043 .get_bus_info = &ixgbe_get_bus_info_generic,
2044 .set_lan_id = &ixgbe_set_lan_id_multi_port_pcie,
2045 .read_analog_reg8 = &ixgbe_read_analog_reg8_82599,
2046 .write_analog_reg8 = &ixgbe_write_analog_reg8_82599,
2047 .setup_link = &ixgbe_setup_mac_link_82599,
2048 .check_link = &ixgbe_check_mac_link_generic,
2049 .get_link_capabilities = &ixgbe_get_link_capabilities_82599,
2050 .led_on = &ixgbe_led_on_generic,
2051 .led_off = &ixgbe_led_off_generic,
2052 .blink_led_start = &ixgbe_blink_led_start_generic,
2053 .blink_led_stop = &ixgbe_blink_led_stop_generic,
2054 .set_rar = &ixgbe_set_rar_generic,
2055 .clear_rar = &ixgbe_clear_rar_generic,
2056 .set_vmdq = &ixgbe_set_vmdq_generic,
2057 .clear_vmdq = &ixgbe_clear_vmdq_generic,
2058 .init_rx_addrs = &ixgbe_init_rx_addrs_generic,
2059 .update_mc_addr_list = &ixgbe_update_mc_addr_list_generic,
2060 .enable_mc = &ixgbe_enable_mc_generic,
2061 .disable_mc = &ixgbe_disable_mc_generic,
2062 .clear_vfta = &ixgbe_clear_vfta_generic,
2063 .set_vfta = &ixgbe_set_vfta_generic,
2064 .fc_enable = &ixgbe_fc_enable_generic,
2065 .init_uta_tables = &ixgbe_init_uta_tables_generic,
2066 .setup_sfp = &ixgbe_setup_sfp_modules_82599,
2067 .set_mac_anti_spoofing = &ixgbe_set_mac_anti_spoofing,
2068 .set_vlan_anti_spoofing = &ixgbe_set_vlan_anti_spoofing,
2069 .acquire_swfw_sync = &ixgbe_acquire_swfw_sync,
2070 .release_swfw_sync = &ixgbe_release_swfw_sync,
2074 static struct ixgbe_eeprom_operations eeprom_ops_82599 = {
2075 .init_params = &ixgbe_init_eeprom_params_generic,
2076 .read = &ixgbe_read_eerd_generic,
2077 .write = &ixgbe_write_eeprom_generic,
2078 .calc_checksum = &ixgbe_calc_eeprom_checksum_generic,
2079 .validate_checksum = &ixgbe_validate_eeprom_checksum_generic,
2080 .update_checksum = &ixgbe_update_eeprom_checksum_generic,
2083 static struct ixgbe_phy_operations phy_ops_82599 = {
2084 .identify = &ixgbe_identify_phy_82599,
2085 .identify_sfp = &ixgbe_identify_sfp_module_generic,
2086 .init = &ixgbe_init_phy_ops_82599,
2087 .reset = &ixgbe_reset_phy_generic,
2088 .read_reg = &ixgbe_read_phy_reg_generic,
2089 .write_reg = &ixgbe_write_phy_reg_generic,
2090 .setup_link = &ixgbe_setup_phy_link_generic,
2091 .setup_link_speed = &ixgbe_setup_phy_link_speed_generic,
2092 .read_i2c_byte = &ixgbe_read_i2c_byte_generic,
2093 .write_i2c_byte = &ixgbe_write_i2c_byte_generic,
2094 .read_i2c_eeprom = &ixgbe_read_i2c_eeprom_generic,
2095 .write_i2c_eeprom = &ixgbe_write_i2c_eeprom_generic,
2096 .check_overtemp = &ixgbe_tn_check_overtemp,
2099 struct ixgbe_info ixgbe_82599_info = {
2100 .mac = ixgbe_mac_82599EB,
2101 .get_invariants = &ixgbe_get_invariants_82599,
2102 .mac_ops = &mac_ops_82599,
2103 .eeprom_ops = &eeprom_ops_82599,
2104 .phy_ops = &phy_ops_82599,
2105 .mbx_ops = &mbx_ops_generic,