1 /******************************************************************************
3 Copyright (c) 2001-2010, 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.
12 2. Redistributions in binary form must reproduce the above copyright
13 notice, this list of conditions and the following disclaimer in the
14 documentation and/or other materials provided with the distribution.
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
22 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 POSSIBILITY OF SUCH DAMAGE.
32 ******************************************************************************/
35 #include "ixgbe_type.h"
36 #include "ixgbe_api.h"
37 #include "ixgbe_common.h"
38 #include "ixgbe_phy.h"
40 s32 ixgbe_init_ops_82599(struct ixgbe_hw *hw);
41 s32 ixgbe_get_link_capabilities_82599(struct ixgbe_hw *hw,
42 ixgbe_link_speed *speed,
44 enum ixgbe_media_type ixgbe_get_media_type_82599(struct ixgbe_hw *hw);
45 void ixgbe_disable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw);
46 void ixgbe_enable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw);
47 void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw);
48 s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw,
49 ixgbe_link_speed speed, bool autoneg,
50 bool autoneg_wait_to_complete);
51 s32 ixgbe_setup_mac_link_smartspeed(struct ixgbe_hw *hw,
52 ixgbe_link_speed speed, bool autoneg,
53 bool autoneg_wait_to_complete);
54 s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw,
55 bool autoneg_wait_to_complete);
56 s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw,
57 ixgbe_link_speed speed,
59 bool autoneg_wait_to_complete);
60 static s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw,
61 ixgbe_link_speed speed,
63 bool autoneg_wait_to_complete);
64 s32 ixgbe_setup_sfp_modules_82599(struct ixgbe_hw *hw);
65 void ixgbe_init_mac_link_ops_82599(struct ixgbe_hw *hw);
66 s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw);
67 s32 ixgbe_read_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 *val);
68 s32 ixgbe_write_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 val);
69 s32 ixgbe_start_hw_rev_1_82599(struct ixgbe_hw *hw);
70 s32 ixgbe_identify_phy_82599(struct ixgbe_hw *hw);
71 s32 ixgbe_init_phy_ops_82599(struct ixgbe_hw *hw);
72 u32 ixgbe_get_supported_physical_layer_82599(struct ixgbe_hw *hw);
73 s32 ixgbe_enable_rx_dma_82599(struct ixgbe_hw *hw, u32 regval);
74 static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw);
75 bool ixgbe_verify_lesm_fw_enabled_82599(struct ixgbe_hw *hw);
78 void ixgbe_init_mac_link_ops_82599(struct ixgbe_hw *hw)
80 struct ixgbe_mac_info *mac = &hw->mac;
82 DEBUGFUNC("ixgbe_init_mac_link_ops_82599");
84 /* enable the laser control functions for SFP+ fiber */
85 if (mac->ops.get_media_type(hw) == ixgbe_media_type_fiber) {
86 mac->ops.disable_tx_laser =
87 &ixgbe_disable_tx_laser_multispeed_fiber;
88 mac->ops.enable_tx_laser =
89 &ixgbe_enable_tx_laser_multispeed_fiber;
90 mac->ops.flap_tx_laser = &ixgbe_flap_tx_laser_multispeed_fiber;
93 mac->ops.disable_tx_laser = NULL;
94 mac->ops.enable_tx_laser = NULL;
95 mac->ops.flap_tx_laser = NULL;
98 if (hw->phy.multispeed_fiber) {
99 /* Set up dual speed SFP+ support */
100 mac->ops.setup_link = &ixgbe_setup_mac_link_multispeed_fiber;
102 if ((ixgbe_get_media_type(hw) == ixgbe_media_type_backplane) &&
103 (hw->phy.smart_speed == ixgbe_smart_speed_auto ||
104 hw->phy.smart_speed == ixgbe_smart_speed_on) &&
105 !ixgbe_verify_lesm_fw_enabled_82599(hw)) {
106 mac->ops.setup_link = &ixgbe_setup_mac_link_smartspeed;
108 mac->ops.setup_link = &ixgbe_setup_mac_link_82599;
114 * ixgbe_init_phy_ops_82599 - PHY/SFP specific init
115 * @hw: pointer to hardware structure
117 * Initialize any function pointers that were not able to be
118 * set during init_shared_code because the PHY/SFP type was
119 * not known. Perform the SFP init if necessary.
122 s32 ixgbe_init_phy_ops_82599(struct ixgbe_hw *hw)
124 struct ixgbe_mac_info *mac = &hw->mac;
125 struct ixgbe_phy_info *phy = &hw->phy;
126 s32 ret_val = IXGBE_SUCCESS;
128 DEBUGFUNC("ixgbe_init_phy_ops_82599");
130 /* Identify the PHY or SFP module */
131 ret_val = phy->ops.identify(hw);
132 if (ret_val == IXGBE_ERR_SFP_NOT_SUPPORTED)
133 goto init_phy_ops_out;
135 /* Setup function pointers based on detected SFP module and speeds */
136 ixgbe_init_mac_link_ops_82599(hw);
137 if (hw->phy.sfp_type != ixgbe_sfp_type_unknown)
138 hw->phy.ops.reset = NULL;
140 /* If copper media, overwrite with copper function pointers */
141 if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper) {
142 mac->ops.setup_link = &ixgbe_setup_copper_link_82599;
143 mac->ops.get_link_capabilities =
144 &ixgbe_get_copper_link_capabilities_generic;
147 /* Set necessary function pointers based on phy type */
148 switch (hw->phy.type) {
150 phy->ops.setup_link = &ixgbe_setup_phy_link_tnx;
151 phy->ops.check_link = &ixgbe_check_phy_link_tnx;
152 phy->ops.get_firmware_version =
153 &ixgbe_get_phy_firmware_version_tnx;
156 phy->ops.get_firmware_version =
157 &ixgbe_get_phy_firmware_version_generic;
166 s32 ixgbe_setup_sfp_modules_82599(struct ixgbe_hw *hw)
168 s32 ret_val = IXGBE_SUCCESS;
171 u16 list_offset, data_offset, data_value;
173 DEBUGFUNC("ixgbe_setup_sfp_modules_82599");
175 if (hw->phy.sfp_type != ixgbe_sfp_type_unknown) {
176 ixgbe_init_mac_link_ops_82599(hw);
178 hw->phy.ops.reset = NULL;
180 ret_val = ixgbe_get_sfp_init_sequence_offsets(hw, &list_offset,
182 if (ret_val != IXGBE_SUCCESS)
185 /* PHY config will finish before releasing the semaphore */
186 ret_val = ixgbe_acquire_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
187 if (ret_val != IXGBE_SUCCESS) {
188 ret_val = IXGBE_ERR_SWFW_SYNC;
192 hw->eeprom.ops.read(hw, ++data_offset, &data_value);
193 while (data_value != 0xffff) {
194 IXGBE_WRITE_REG(hw, IXGBE_CORECTL, data_value);
195 IXGBE_WRITE_FLUSH(hw);
196 hw->eeprom.ops.read(hw, ++data_offset, &data_value);
199 /* Release the semaphore */
200 ixgbe_release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
201 /* Delay obtaining semaphore again to allow FW access */
202 msec_delay(hw->eeprom.semaphore_delay);
204 /* Now restart DSP by setting Restart_AN and clearing LMS */
205 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, ((IXGBE_READ_REG(hw,
206 IXGBE_AUTOC) & ~IXGBE_AUTOC_LMS_MASK) |
207 IXGBE_AUTOC_AN_RESTART));
209 /* Wait for AN to leave state 0 */
210 for (i = 0; i < 10; i++) {
212 reg_anlp1 = IXGBE_READ_REG(hw, IXGBE_ANLP1);
213 if (reg_anlp1 & IXGBE_ANLP1_AN_STATE_MASK)
216 if (!(reg_anlp1 & IXGBE_ANLP1_AN_STATE_MASK)) {
217 DEBUGOUT("sfp module setup not complete\n");
218 ret_val = IXGBE_ERR_SFP_SETUP_NOT_COMPLETE;
222 /* Restart DSP by setting Restart_AN and return to SFI mode */
223 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, (IXGBE_READ_REG(hw,
224 IXGBE_AUTOC) | IXGBE_AUTOC_LMS_10G_SERIAL |
225 IXGBE_AUTOC_AN_RESTART));
233 * ixgbe_init_ops_82599 - Inits func ptrs and MAC type
234 * @hw: pointer to hardware structure
236 * Initialize the function pointers and assign the MAC type for 82599.
237 * Does not touch the hardware.
240 s32 ixgbe_init_ops_82599(struct ixgbe_hw *hw)
242 struct ixgbe_mac_info *mac = &hw->mac;
243 struct ixgbe_phy_info *phy = &hw->phy;
246 DEBUGFUNC("ixgbe_init_ops_82599");
248 ret_val = ixgbe_init_phy_ops_generic(hw);
249 ret_val = ixgbe_init_ops_generic(hw);
252 phy->ops.identify = &ixgbe_identify_phy_82599;
253 phy->ops.init = &ixgbe_init_phy_ops_82599;
256 mac->ops.reset_hw = &ixgbe_reset_hw_82599;
257 mac->ops.enable_relaxed_ordering = &ixgbe_enable_relaxed_ordering_gen2;
258 mac->ops.get_media_type = &ixgbe_get_media_type_82599;
259 mac->ops.get_supported_physical_layer =
260 &ixgbe_get_supported_physical_layer_82599;
261 mac->ops.enable_rx_dma = &ixgbe_enable_rx_dma_82599;
262 mac->ops.read_analog_reg8 = &ixgbe_read_analog_reg8_82599;
263 mac->ops.write_analog_reg8 = &ixgbe_write_analog_reg8_82599;
264 mac->ops.start_hw = &ixgbe_start_hw_rev_1_82599;
265 mac->ops.get_san_mac_addr = &ixgbe_get_san_mac_addr_generic;
266 mac->ops.set_san_mac_addr = &ixgbe_set_san_mac_addr_generic;
267 mac->ops.get_device_caps = &ixgbe_get_device_caps_generic;
268 mac->ops.get_wwn_prefix = &ixgbe_get_wwn_prefix_generic;
269 mac->ops.get_fcoe_boot_status = &ixgbe_get_fcoe_boot_status_generic;
271 /* RAR, Multicast, VLAN */
272 mac->ops.set_vmdq = &ixgbe_set_vmdq_generic;
273 mac->ops.clear_vmdq = &ixgbe_clear_vmdq_generic;
274 mac->ops.insert_mac_addr = &ixgbe_insert_mac_addr_generic;
275 mac->rar_highwater = 1;
276 mac->ops.set_vfta = &ixgbe_set_vfta_generic;
277 mac->ops.clear_vfta = &ixgbe_clear_vfta_generic;
278 mac->ops.init_uta_tables = &ixgbe_init_uta_tables_generic;
279 mac->ops.setup_sfp = &ixgbe_setup_sfp_modules_82599;
280 mac->ops.set_mac_anti_spoofing = &ixgbe_set_mac_anti_spoofing;
281 mac->ops.set_vlan_anti_spoofing = &ixgbe_set_vlan_anti_spoofing;
284 mac->ops.get_link_capabilities = &ixgbe_get_link_capabilities_82599;
285 mac->ops.check_link = &ixgbe_check_mac_link_generic;
286 ixgbe_init_mac_link_ops_82599(hw);
288 mac->mcft_size = 128;
290 mac->num_rar_entries = 128;
291 mac->rx_pb_size = 512;
292 mac->max_tx_queues = 128;
293 mac->max_rx_queues = 128;
294 mac->max_msix_vectors = ixgbe_get_pcie_msix_count_generic(hw);
296 hw->mbx.ops.init_params = ixgbe_init_mbx_params_pf;
302 * ixgbe_get_link_capabilities_82599 - Determines link capabilities
303 * @hw: pointer to hardware structure
304 * @speed: pointer to link speed
305 * @negotiation: TRUE when autoneg or autotry is enabled
307 * Determines the link capabilities by reading the AUTOC register.
309 s32 ixgbe_get_link_capabilities_82599(struct ixgbe_hw *hw,
310 ixgbe_link_speed *speed,
313 s32 status = IXGBE_SUCCESS;
316 DEBUGFUNC("ixgbe_get_link_capabilities_82599");
319 /* Check if 1G SFP module. */
320 if (hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core0 ||
321 hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core1) {
322 *speed = IXGBE_LINK_SPEED_1GB_FULL;
328 * Determine link capabilities based on the stored value of AUTOC,
329 * which represents EEPROM defaults. If AUTOC value has not
330 * been stored, use the current register values.
332 if (hw->mac.orig_link_settings_stored)
333 autoc = hw->mac.orig_autoc;
335 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
337 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
338 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
339 *speed = IXGBE_LINK_SPEED_1GB_FULL;
340 *negotiation = FALSE;
343 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
344 *speed = IXGBE_LINK_SPEED_10GB_FULL;
345 *negotiation = FALSE;
348 case IXGBE_AUTOC_LMS_1G_AN:
349 *speed = IXGBE_LINK_SPEED_1GB_FULL;
353 case IXGBE_AUTOC_LMS_10G_SERIAL:
354 *speed = IXGBE_LINK_SPEED_10GB_FULL;
355 *negotiation = FALSE;
358 case IXGBE_AUTOC_LMS_KX4_KX_KR:
359 case IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN:
360 *speed = IXGBE_LINK_SPEED_UNKNOWN;
361 if (autoc & IXGBE_AUTOC_KR_SUPP)
362 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
363 if (autoc & IXGBE_AUTOC_KX4_SUPP)
364 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
365 if (autoc & IXGBE_AUTOC_KX_SUPP)
366 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
370 case IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII:
371 *speed = IXGBE_LINK_SPEED_100_FULL;
372 if (autoc & IXGBE_AUTOC_KR_SUPP)
373 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
374 if (autoc & IXGBE_AUTOC_KX4_SUPP)
375 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
376 if (autoc & IXGBE_AUTOC_KX_SUPP)
377 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
381 case IXGBE_AUTOC_LMS_SGMII_1G_100M:
382 *speed = IXGBE_LINK_SPEED_1GB_FULL | IXGBE_LINK_SPEED_100_FULL;
383 *negotiation = FALSE;
387 status = IXGBE_ERR_LINK_SETUP;
392 if (hw->phy.multispeed_fiber) {
393 *speed |= IXGBE_LINK_SPEED_10GB_FULL |
394 IXGBE_LINK_SPEED_1GB_FULL;
403 * ixgbe_get_media_type_82599 - Get media type
404 * @hw: pointer to hardware structure
406 * Returns the media type (fiber, copper, backplane)
408 enum ixgbe_media_type ixgbe_get_media_type_82599(struct ixgbe_hw *hw)
410 enum ixgbe_media_type media_type;
412 DEBUGFUNC("ixgbe_get_media_type_82599");
414 /* Detect if there is a copper PHY attached. */
415 switch (hw->phy.type) {
416 case ixgbe_phy_cu_unknown:
419 media_type = ixgbe_media_type_copper;
425 switch (hw->device_id) {
426 case IXGBE_DEV_ID_82599_KX4:
427 case IXGBE_DEV_ID_82599_KX4_MEZZ:
428 case IXGBE_DEV_ID_82599_COMBO_BACKPLANE:
429 case IXGBE_DEV_ID_82599_BACKPLANE_FCOE:
430 case IXGBE_DEV_ID_82599_XAUI_LOM:
431 /* Default device ID is mezzanine card KX/KX4 */
432 media_type = ixgbe_media_type_backplane;
434 case IXGBE_DEV_ID_82599_SFP:
435 case IXGBE_DEV_ID_82599_SFP_FCOE:
436 media_type = ixgbe_media_type_fiber;
438 case IXGBE_DEV_ID_82599_CX4:
439 media_type = ixgbe_media_type_cx4;
441 case IXGBE_DEV_ID_82599_T3_LOM:
442 media_type = ixgbe_media_type_copper;
445 media_type = ixgbe_media_type_unknown;
453 * ixgbe_start_mac_link_82599 - Setup MAC link settings
454 * @hw: pointer to hardware structure
455 * @autoneg_wait_to_complete: TRUE when waiting for completion is needed
457 * Configures link settings based on values in the ixgbe_hw struct.
458 * Restarts the link. Performs autonegotiation if needed.
460 s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw,
461 bool autoneg_wait_to_complete)
466 s32 status = IXGBE_SUCCESS;
468 DEBUGFUNC("ixgbe_start_mac_link_82599");
472 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
473 autoc_reg |= IXGBE_AUTOC_AN_RESTART;
474 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
476 /* Only poll for autoneg to complete if specified to do so */
477 if (autoneg_wait_to_complete) {
478 if ((autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
479 IXGBE_AUTOC_LMS_KX4_KX_KR ||
480 (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
481 IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
482 (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
483 IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
484 links_reg = 0; /* Just in case Autoneg time = 0 */
485 for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
486 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
487 if (links_reg & IXGBE_LINKS_KX_AN_COMP)
491 if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
492 status = IXGBE_ERR_AUTONEG_NOT_COMPLETE;
493 DEBUGOUT("Autoneg did not complete.\n");
498 /* Add delay to filter out noises during initial link setup */
505 * ixgbe_disable_tx_laser_multispeed_fiber - Disable Tx laser
506 * @hw: pointer to hardware structure
508 * The base drivers may require better control over SFP+ module
509 * PHY states. This includes selectively shutting down the Tx
510 * laser on the PHY, effectively halting physical link.
512 void ixgbe_disable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
514 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
516 /* Disable tx laser; allow 100us to go dark per spec */
517 esdp_reg |= IXGBE_ESDP_SDP3;
518 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
519 IXGBE_WRITE_FLUSH(hw);
524 * ixgbe_enable_tx_laser_multispeed_fiber - Enable Tx laser
525 * @hw: pointer to hardware structure
527 * The base drivers may require better control over SFP+ module
528 * PHY states. This includes selectively turning on the Tx
529 * laser on the PHY, effectively starting physical link.
531 void ixgbe_enable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
533 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
535 /* Enable tx laser; allow 100ms to light up */
536 esdp_reg &= ~IXGBE_ESDP_SDP3;
537 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
538 IXGBE_WRITE_FLUSH(hw);
543 * ixgbe_flap_tx_laser_multispeed_fiber - Flap Tx laser
544 * @hw: pointer to hardware structure
546 * When the driver changes the link speeds that it can support,
547 * it sets autotry_restart to TRUE to indicate that we need to
548 * initiate a new autotry session with the link partner. To do
549 * so, we set the speed then disable and re-enable the tx laser, to
550 * alert the link partner that it also needs to restart autotry on its
551 * end. This is consistent with TRUE clause 37 autoneg, which also
552 * involves a loss of signal.
554 void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
556 DEBUGFUNC("ixgbe_flap_tx_laser_multispeed_fiber");
558 if (hw->mac.autotry_restart) {
559 ixgbe_disable_tx_laser_multispeed_fiber(hw);
560 ixgbe_enable_tx_laser_multispeed_fiber(hw);
561 hw->mac.autotry_restart = FALSE;
566 * ixgbe_setup_mac_link_multispeed_fiber - Set MAC link speed
567 * @hw: pointer to hardware structure
568 * @speed: new link speed
569 * @autoneg: TRUE if autonegotiation enabled
570 * @autoneg_wait_to_complete: TRUE when waiting for completion is needed
572 * Set the link speed in the AUTOC register and restarts link.
574 s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw,
575 ixgbe_link_speed speed, bool autoneg,
576 bool autoneg_wait_to_complete)
578 s32 status = IXGBE_SUCCESS;
579 ixgbe_link_speed link_speed = IXGBE_LINK_SPEED_UNKNOWN;
580 ixgbe_link_speed highest_link_speed = IXGBE_LINK_SPEED_UNKNOWN;
582 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
584 bool link_up = FALSE;
587 DEBUGFUNC("ixgbe_setup_mac_link_multispeed_fiber");
589 /* Mask off requested but non-supported speeds */
590 status = ixgbe_get_link_capabilities(hw, &link_speed, &negotiation);
591 if (status != IXGBE_SUCCESS)
597 * Try each speed one by one, highest priority first. We do this in
598 * software because 10gb fiber doesn't support speed autonegotiation.
600 if (speed & IXGBE_LINK_SPEED_10GB_FULL) {
602 highest_link_speed = IXGBE_LINK_SPEED_10GB_FULL;
604 /* If we already have link at this speed, just jump out */
605 status = ixgbe_check_link(hw, &link_speed, &link_up, FALSE);
606 if (status != IXGBE_SUCCESS)
609 if ((link_speed == IXGBE_LINK_SPEED_10GB_FULL) && link_up)
612 /* Set the module link speed */
613 esdp_reg |= (IXGBE_ESDP_SDP5_DIR | IXGBE_ESDP_SDP5);
614 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
615 IXGBE_WRITE_FLUSH(hw);
617 /* Allow module to change analog characteristics (1G->10G) */
620 status = ixgbe_setup_mac_link_82599(hw,
621 IXGBE_LINK_SPEED_10GB_FULL,
623 autoneg_wait_to_complete);
624 if (status != IXGBE_SUCCESS)
627 /* Flap the tx laser if it has not already been done */
628 ixgbe_flap_tx_laser(hw);
631 * Wait for the controller to acquire link. Per IEEE 802.3ap,
632 * Section 73.10.2, we may have to wait up to 500ms if KR is
633 * attempted. 82599 uses the same timing for 10g SFI.
635 for (i = 0; i < 5; i++) {
636 /* Wait for the link partner to also set speed */
639 /* If we have link, just jump out */
640 status = ixgbe_check_link(hw, &link_speed,
642 if (status != IXGBE_SUCCESS)
650 if (speed & IXGBE_LINK_SPEED_1GB_FULL) {
652 if (highest_link_speed == IXGBE_LINK_SPEED_UNKNOWN)
653 highest_link_speed = IXGBE_LINK_SPEED_1GB_FULL;
655 /* If we already have link at this speed, just jump out */
656 status = ixgbe_check_link(hw, &link_speed, &link_up, FALSE);
657 if (status != IXGBE_SUCCESS)
660 if ((link_speed == IXGBE_LINK_SPEED_1GB_FULL) && link_up)
663 /* Set the module link speed */
664 esdp_reg &= ~IXGBE_ESDP_SDP5;
665 esdp_reg |= IXGBE_ESDP_SDP5_DIR;
666 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
667 IXGBE_WRITE_FLUSH(hw);
669 /* Allow module to change analog characteristics (10G->1G) */
672 status = ixgbe_setup_mac_link_82599(hw,
673 IXGBE_LINK_SPEED_1GB_FULL,
675 autoneg_wait_to_complete);
676 if (status != IXGBE_SUCCESS)
679 /* Flap the tx laser if it has not already been done */
680 ixgbe_flap_tx_laser(hw);
682 /* Wait for the link partner to also set speed */
685 /* If we have link, just jump out */
686 status = ixgbe_check_link(hw, &link_speed, &link_up, FALSE);
687 if (status != IXGBE_SUCCESS)
695 * We didn't get link. Configure back to the highest speed we tried,
696 * (if there was more than one). We call ourselves back with just the
697 * single highest speed that the user requested.
700 status = ixgbe_setup_mac_link_multispeed_fiber(hw,
701 highest_link_speed, autoneg, autoneg_wait_to_complete);
704 /* Set autoneg_advertised value based on input link speed */
705 hw->phy.autoneg_advertised = 0;
707 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
708 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_10GB_FULL;
710 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
711 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_1GB_FULL;
717 * ixgbe_setup_mac_link_smartspeed - Set MAC link speed using SmartSpeed
718 * @hw: pointer to hardware structure
719 * @speed: new link speed
720 * @autoneg: TRUE if autonegotiation enabled
721 * @autoneg_wait_to_complete: TRUE when waiting for completion is needed
723 * Implements the Intel SmartSpeed algorithm.
725 s32 ixgbe_setup_mac_link_smartspeed(struct ixgbe_hw *hw,
726 ixgbe_link_speed speed, bool autoneg,
727 bool autoneg_wait_to_complete)
729 s32 status = IXGBE_SUCCESS;
730 ixgbe_link_speed link_speed = IXGBE_LINK_SPEED_UNKNOWN;
732 bool link_up = FALSE;
733 u32 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
735 DEBUGFUNC("ixgbe_setup_mac_link_smartspeed");
737 /* Set autoneg_advertised value based on input link speed */
738 hw->phy.autoneg_advertised = 0;
740 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
741 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_10GB_FULL;
743 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
744 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_1GB_FULL;
746 if (speed & IXGBE_LINK_SPEED_100_FULL)
747 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_100_FULL;
750 * Implement Intel SmartSpeed algorithm. SmartSpeed will reduce the
751 * autoneg advertisement if link is unable to be established at the
752 * highest negotiated rate. This can sometimes happen due to integrity
753 * issues with the physical media connection.
756 /* First, try to get link with full advertisement */
757 hw->phy.smart_speed_active = FALSE;
758 for (j = 0; j < IXGBE_SMARTSPEED_MAX_RETRIES; j++) {
759 status = ixgbe_setup_mac_link_82599(hw, speed, autoneg,
760 autoneg_wait_to_complete);
761 if (status != IXGBE_SUCCESS)
765 * Wait for the controller to acquire link. Per IEEE 802.3ap,
766 * Section 73.10.2, we may have to wait up to 500ms if KR is
767 * attempted, or 200ms if KX/KX4/BX/BX4 is attempted, per
768 * Table 9 in the AN MAS.
770 for (i = 0; i < 5; i++) {
773 /* If we have link, just jump out */
774 status = ixgbe_check_link(hw, &link_speed, &link_up,
776 if (status != IXGBE_SUCCESS)
785 * We didn't get link. If we advertised KR plus one of KX4/KX
786 * (or BX4/BX), then disable KR and try again.
788 if (((autoc_reg & IXGBE_AUTOC_KR_SUPP) == 0) ||
789 ((autoc_reg & IXGBE_AUTOC_KX4_KX_SUPP_MASK) == 0))
792 /* Turn SmartSpeed on to disable KR support */
793 hw->phy.smart_speed_active = TRUE;
794 status = ixgbe_setup_mac_link_82599(hw, speed, autoneg,
795 autoneg_wait_to_complete);
796 if (status != IXGBE_SUCCESS)
800 * Wait for the controller to acquire link. 600ms will allow for
801 * the AN link_fail_inhibit_timer as well for multiple cycles of
802 * parallel detect, both 10g and 1g. This allows for the maximum
803 * connect attempts as defined in the AN MAS table 73-7.
805 for (i = 0; i < 6; i++) {
808 /* If we have link, just jump out */
809 status = ixgbe_check_link(hw, &link_speed, &link_up, FALSE);
810 if (status != IXGBE_SUCCESS)
817 /* We didn't get link. Turn SmartSpeed back off. */
818 hw->phy.smart_speed_active = FALSE;
819 status = ixgbe_setup_mac_link_82599(hw, speed, autoneg,
820 autoneg_wait_to_complete);
823 if (link_up && (link_speed == IXGBE_LINK_SPEED_1GB_FULL))
824 DEBUGOUT("Smartspeed has downgraded the link speed "
825 "from the maximum advertised\n");
830 * ixgbe_setup_mac_link_82599 - Set MAC link speed
831 * @hw: pointer to hardware structure
832 * @speed: new link speed
833 * @autoneg: TRUE if autonegotiation enabled
834 * @autoneg_wait_to_complete: TRUE when waiting for completion is needed
836 * Set the link speed in the AUTOC register and restarts link.
838 s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw,
839 ixgbe_link_speed speed, bool autoneg,
840 bool autoneg_wait_to_complete)
842 s32 status = IXGBE_SUCCESS;
843 u32 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
844 u32 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
845 u32 start_autoc = autoc;
847 u32 link_mode = autoc & IXGBE_AUTOC_LMS_MASK;
848 u32 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;
849 u32 pma_pmd_10g_serial = autoc2 & IXGBE_AUTOC2_10G_SERIAL_PMA_PMD_MASK;
852 ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN;
854 DEBUGFUNC("ixgbe_setup_mac_link_82599");
856 /* Check to see if speed passed in is supported. */
857 status = ixgbe_get_link_capabilities(hw, &link_capabilities, &autoneg);
858 if (status != IXGBE_SUCCESS)
861 speed &= link_capabilities;
863 if (speed == IXGBE_LINK_SPEED_UNKNOWN) {
864 status = IXGBE_ERR_LINK_SETUP;
868 /* Use stored value (EEPROM defaults) of AUTOC to find KR/KX4 support*/
869 if (hw->mac.orig_link_settings_stored)
870 orig_autoc = hw->mac.orig_autoc;
874 if (link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR ||
875 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
876 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
877 /* Set KX4/KX/KR support according to speed requested */
878 autoc &= ~(IXGBE_AUTOC_KX4_KX_SUPP_MASK | IXGBE_AUTOC_KR_SUPP);
879 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
880 if (orig_autoc & IXGBE_AUTOC_KX4_SUPP)
881 autoc |= IXGBE_AUTOC_KX4_SUPP;
882 if ((orig_autoc & IXGBE_AUTOC_KR_SUPP) &&
883 (hw->phy.smart_speed_active == FALSE))
884 autoc |= IXGBE_AUTOC_KR_SUPP;
885 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
886 autoc |= IXGBE_AUTOC_KX_SUPP;
887 } else if ((pma_pmd_1g == IXGBE_AUTOC_1G_SFI) &&
888 (link_mode == IXGBE_AUTOC_LMS_1G_LINK_NO_AN ||
889 link_mode == IXGBE_AUTOC_LMS_1G_AN)) {
890 /* Switch from 1G SFI to 10G SFI if requested */
891 if ((speed == IXGBE_LINK_SPEED_10GB_FULL) &&
892 (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI)) {
893 autoc &= ~IXGBE_AUTOC_LMS_MASK;
894 autoc |= IXGBE_AUTOC_LMS_10G_SERIAL;
896 } else if ((pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI) &&
897 (link_mode == IXGBE_AUTOC_LMS_10G_SERIAL)) {
898 /* Switch from 10G SFI to 1G SFI if requested */
899 if ((speed == IXGBE_LINK_SPEED_1GB_FULL) &&
900 (pma_pmd_1g == IXGBE_AUTOC_1G_SFI)) {
901 autoc &= ~IXGBE_AUTOC_LMS_MASK;
903 autoc |= IXGBE_AUTOC_LMS_1G_AN;
905 autoc |= IXGBE_AUTOC_LMS_1G_LINK_NO_AN;
909 if (autoc != start_autoc) {
911 autoc |= IXGBE_AUTOC_AN_RESTART;
912 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc);
914 /* Only poll for autoneg to complete if specified to do so */
915 if (autoneg_wait_to_complete) {
916 if (link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR ||
917 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
918 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
919 links_reg = 0; /*Just in case Autoneg time=0*/
920 for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
922 IXGBE_READ_REG(hw, IXGBE_LINKS);
923 if (links_reg & IXGBE_LINKS_KX_AN_COMP)
927 if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
929 IXGBE_ERR_AUTONEG_NOT_COMPLETE;
930 DEBUGOUT("Autoneg did not complete.\n");
935 /* Add delay to filter out noises during initial link setup */
944 * ixgbe_setup_copper_link_82599 - Set the PHY autoneg advertised field
945 * @hw: pointer to hardware structure
946 * @speed: new link speed
947 * @autoneg: TRUE if autonegotiation enabled
948 * @autoneg_wait_to_complete: TRUE if waiting is needed to complete
950 * Restarts link on PHY and MAC based on settings passed in.
952 static s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw,
953 ixgbe_link_speed speed,
955 bool autoneg_wait_to_complete)
959 DEBUGFUNC("ixgbe_setup_copper_link_82599");
961 /* Setup the PHY according to input speed */
962 status = hw->phy.ops.setup_link_speed(hw, speed, autoneg,
963 autoneg_wait_to_complete);
965 ixgbe_start_mac_link_82599(hw, autoneg_wait_to_complete);
971 * ixgbe_reset_hw_82599 - Perform hardware reset
972 * @hw: pointer to hardware structure
974 * Resets the hardware by resetting the transmit and receive units, masks
975 * and clears all interrupts, perform a PHY reset, and perform a link (MAC)
978 s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw)
980 s32 status = IXGBE_SUCCESS;
986 DEBUGFUNC("ixgbe_reset_hw_82599");
988 /* Call adapter stop to disable tx/rx and clear interrupts */
989 hw->mac.ops.stop_adapter(hw);
991 /* PHY ops must be identified and initialized prior to reset */
993 /* Identify PHY and related function pointers */
994 status = hw->phy.ops.init(hw);
996 if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
999 /* Setup SFP module if there is one present. */
1000 if (hw->phy.sfp_setup_needed) {
1001 status = hw->mac.ops.setup_sfp(hw);
1002 hw->phy.sfp_setup_needed = FALSE;
1005 if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
1009 if (hw->phy.reset_disable == FALSE && hw->phy.ops.reset != NULL)
1010 hw->phy.ops.reset(hw);
1013 * Prevent the PCI-E bus from from hanging by disabling PCI-E master
1014 * access and verify no pending requests before reset
1016 ixgbe_disable_pcie_master(hw);
1020 * Issue global reset to the MAC. This needs to be a SW reset.
1021 * If link reset is used, it might reset the MAC when mng is using it
1023 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
1024 IXGBE_WRITE_REG(hw, IXGBE_CTRL, (ctrl | IXGBE_CTRL_RST));
1025 IXGBE_WRITE_FLUSH(hw);
1027 /* Poll for reset bit to self-clear indicating reset is complete */
1028 for (i = 0; i < 10; i++) {
1030 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
1031 if (!(ctrl & IXGBE_CTRL_RST))
1034 if (ctrl & IXGBE_CTRL_RST) {
1035 status = IXGBE_ERR_RESET_FAILED;
1036 DEBUGOUT("Reset polling failed to complete.\n");
1040 * Double resets are required for recovery from certain error
1041 * conditions. Between resets, it is necessary to stall to allow time
1042 * for any pending HW events to complete. We use 1usec since that is
1043 * what is needed for ixgbe_disable_pcie_master(). The second reset
1044 * then clears out any effects of those events.
1046 if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
1047 hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
1055 * Store the original AUTOC/AUTOC2 values if they have not been
1056 * stored off yet. Otherwise restore the stored original
1057 * values since the reset operation sets back to defaults.
1059 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
1060 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
1061 if (hw->mac.orig_link_settings_stored == FALSE) {
1062 hw->mac.orig_autoc = autoc;
1063 hw->mac.orig_autoc2 = autoc2;
1064 hw->mac.orig_link_settings_stored = TRUE;
1066 if (autoc != hw->mac.orig_autoc)
1067 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, (hw->mac.orig_autoc |
1068 IXGBE_AUTOC_AN_RESTART));
1070 if ((autoc2 & IXGBE_AUTOC2_UPPER_MASK) !=
1071 (hw->mac.orig_autoc2 & IXGBE_AUTOC2_UPPER_MASK)) {
1072 autoc2 &= ~IXGBE_AUTOC2_UPPER_MASK;
1073 autoc2 |= (hw->mac.orig_autoc2 &
1074 IXGBE_AUTOC2_UPPER_MASK);
1075 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2);
1079 /* Store the permanent mac address */
1080 hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
1083 * Store MAC address from RAR0, clear receive address registers, and
1084 * clear the multicast table. Also reset num_rar_entries to 128,
1085 * since we modify this value when programming the SAN MAC address.
1087 hw->mac.num_rar_entries = 128;
1088 hw->mac.ops.init_rx_addrs(hw);
1090 /* Store the permanent SAN mac address */
1091 hw->mac.ops.get_san_mac_addr(hw, hw->mac.san_addr);
1093 /* Add the SAN MAC address to the RAR only if it's a valid address */
1094 if (ixgbe_validate_mac_addr(hw->mac.san_addr) == 0) {
1095 hw->mac.ops.set_rar(hw, hw->mac.num_rar_entries - 1,
1096 hw->mac.san_addr, 0, IXGBE_RAH_AV);
1098 /* Reserve the last RAR for the SAN MAC address */
1099 hw->mac.num_rar_entries--;
1102 /* Store the alternative WWNN/WWPN prefix */
1103 hw->mac.ops.get_wwn_prefix(hw, &hw->mac.wwnn_prefix,
1104 &hw->mac.wwpn_prefix);
1111 * ixgbe_reinit_fdir_tables_82599 - Reinitialize Flow Director tables.
1112 * @hw: pointer to hardware structure
1114 s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw)
1117 u32 fdirctrl = IXGBE_READ_REG(hw, IXGBE_FDIRCTRL);
1118 fdirctrl &= ~IXGBE_FDIRCTRL_INIT_DONE;
1120 DEBUGFUNC("ixgbe_reinit_fdir_tables_82599");
1123 * Before starting reinitialization process,
1124 * FDIRCMD.CMD must be zero.
1126 for (i = 0; i < IXGBE_FDIRCMD_CMD_POLL; i++) {
1127 if (!(IXGBE_READ_REG(hw, IXGBE_FDIRCMD) &
1128 IXGBE_FDIRCMD_CMD_MASK))
1132 if (i >= IXGBE_FDIRCMD_CMD_POLL) {
1133 DEBUGOUT("Flow Director previous command isn't complete, "
1134 "aborting table re-initialization. \n");
1135 return IXGBE_ERR_FDIR_REINIT_FAILED;
1138 IXGBE_WRITE_REG(hw, IXGBE_FDIRFREE, 0);
1139 IXGBE_WRITE_FLUSH(hw);
1141 * 82599 adapters flow director init flow cannot be restarted,
1142 * Workaround 82599 silicon errata by performing the following steps
1143 * before re-writing the FDIRCTRL control register with the same value.
1144 * - write 1 to bit 8 of FDIRCMD register &
1145 * - write 0 to bit 8 of FDIRCMD register
1147 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1148 (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) |
1149 IXGBE_FDIRCMD_CLEARHT));
1150 IXGBE_WRITE_FLUSH(hw);
1151 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1152 (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) &
1153 ~IXGBE_FDIRCMD_CLEARHT));
1154 IXGBE_WRITE_FLUSH(hw);
1156 * Clear FDIR Hash register to clear any leftover hashes
1157 * waiting to be programmed.
1159 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, 0x00);
1160 IXGBE_WRITE_FLUSH(hw);
1162 IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
1163 IXGBE_WRITE_FLUSH(hw);
1165 /* Poll init-done after we write FDIRCTRL register */
1166 for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
1167 if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) &
1168 IXGBE_FDIRCTRL_INIT_DONE)
1172 if (i >= IXGBE_FDIR_INIT_DONE_POLL) {
1173 DEBUGOUT("Flow Director Signature poll time exceeded!\n");
1174 return IXGBE_ERR_FDIR_REINIT_FAILED;
1177 /* Clear FDIR statistics registers (read to clear) */
1178 IXGBE_READ_REG(hw, IXGBE_FDIRUSTAT);
1179 IXGBE_READ_REG(hw, IXGBE_FDIRFSTAT);
1180 IXGBE_READ_REG(hw, IXGBE_FDIRMATCH);
1181 IXGBE_READ_REG(hw, IXGBE_FDIRMISS);
1182 IXGBE_READ_REG(hw, IXGBE_FDIRLEN);
1184 return IXGBE_SUCCESS;
1188 * ixgbe_init_fdir_signature_82599 - Initialize Flow Director signature filters
1189 * @hw: pointer to hardware structure
1190 * @pballoc: which mode to allocate filters with
1192 s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 pballoc)
1198 DEBUGFUNC("ixgbe_init_fdir_signature_82599");
1201 * Before enabling Flow Director, the Rx Packet Buffer size
1202 * must be reduced. The new value is the current size minus
1203 * flow director memory usage size.
1205 pbsize = (1 << (IXGBE_FDIR_PBALLOC_SIZE_SHIFT + pballoc));
1206 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(0),
1207 (IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(0)) - pbsize));
1210 * The defaults in the HW for RX PB 1-7 are not zero and so should be
1211 * intialized to zero for non DCB mode otherwise actual total RX PB
1212 * would be bigger than programmed and filter space would run into
1215 for (i = 1; i < 8; i++)
1216 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), 0);
1218 /* Send interrupt when 64 filters are left */
1219 fdirctrl |= 4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT;
1221 /* Set the maximum length per hash bucket to 0xA filters */
1222 fdirctrl |= 0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT;
1225 case IXGBE_FDIR_PBALLOC_64K:
1226 /* 8k - 1 signature filters */
1227 fdirctrl |= IXGBE_FDIRCTRL_PBALLOC_64K;
1229 case IXGBE_FDIR_PBALLOC_128K:
1230 /* 16k - 1 signature filters */
1231 fdirctrl |= IXGBE_FDIRCTRL_PBALLOC_128K;
1233 case IXGBE_FDIR_PBALLOC_256K:
1234 /* 32k - 1 signature filters */
1235 fdirctrl |= IXGBE_FDIRCTRL_PBALLOC_256K;
1239 return IXGBE_ERR_CONFIG;
1242 /* Move the flexible bytes to use the ethertype - shift 6 words */
1243 fdirctrl |= (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT);
1246 /* Prime the keys for hashing */
1247 IXGBE_WRITE_REG(hw, IXGBE_FDIRHKEY, IXGBE_ATR_BUCKET_HASH_KEY);
1248 IXGBE_WRITE_REG(hw, IXGBE_FDIRSKEY, IXGBE_ATR_SIGNATURE_HASH_KEY);
1251 * Poll init-done after we write the register. Estimated times:
1252 * 10G: PBALLOC = 11b, timing is 60us
1253 * 1G: PBALLOC = 11b, timing is 600us
1254 * 100M: PBALLOC = 11b, timing is 6ms
1256 * Multiple these timings by 4 if under full Rx load
1258 * So we'll poll for IXGBE_FDIR_INIT_DONE_POLL times, sleeping for
1259 * 1 msec per poll time. If we're at line rate and drop to 100M, then
1260 * this might not finish in our poll time, but we can live with that
1263 IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
1264 IXGBE_WRITE_FLUSH(hw);
1265 for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
1266 if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) &
1267 IXGBE_FDIRCTRL_INIT_DONE)
1271 if (i >= IXGBE_FDIR_INIT_DONE_POLL)
1272 DEBUGOUT("Flow Director Signature poll time exceeded!\n");
1274 return IXGBE_SUCCESS;
1278 * ixgbe_init_fdir_perfect_82599 - Initialize Flow Director perfect filters
1279 * @hw: pointer to hardware structure
1280 * @pballoc: which mode to allocate filters with
1282 s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 pballoc)
1288 DEBUGFUNC("ixgbe_init_fdir_perfect_82599");
1291 * Before enabling Flow Director, the Rx Packet Buffer size
1292 * must be reduced. The new value is the current size minus
1293 * flow director memory usage size.
1295 pbsize = (1 << (IXGBE_FDIR_PBALLOC_SIZE_SHIFT + pballoc));
1296 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(0),
1297 (IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(0)) - pbsize));
1300 * The defaults in the HW for RX PB 1-7 are not zero and so should be
1301 * intialized to zero for non DCB mode otherwise actual total RX PB
1302 * would be bigger than programmed and filter space would run into
1305 for (i = 1; i < 8; i++)
1306 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), 0);
1308 /* Send interrupt when 64 filters are left */
1309 fdirctrl |= 4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT;
1311 /* Initialize the drop queue to Rx queue 127 */
1312 fdirctrl |= (127 << IXGBE_FDIRCTRL_DROP_Q_SHIFT);
1315 case IXGBE_FDIR_PBALLOC_64K:
1316 /* 2k - 1 perfect filters */
1317 fdirctrl |= IXGBE_FDIRCTRL_PBALLOC_64K;
1319 case IXGBE_FDIR_PBALLOC_128K:
1320 /* 4k - 1 perfect filters */
1321 fdirctrl |= IXGBE_FDIRCTRL_PBALLOC_128K;
1323 case IXGBE_FDIR_PBALLOC_256K:
1324 /* 8k - 1 perfect filters */
1325 fdirctrl |= IXGBE_FDIRCTRL_PBALLOC_256K;
1329 return IXGBE_ERR_CONFIG;
1332 /* Turn perfect match filtering on */
1333 fdirctrl |= IXGBE_FDIRCTRL_PERFECT_MATCH;
1334 fdirctrl |= IXGBE_FDIRCTRL_REPORT_STATUS;
1336 /* Move the flexible bytes to use the ethertype - shift 6 words */
1337 fdirctrl |= (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT);
1339 /* Prime the keys for hashing */
1340 IXGBE_WRITE_REG(hw, IXGBE_FDIRHKEY, IXGBE_ATR_BUCKET_HASH_KEY);
1341 IXGBE_WRITE_REG(hw, IXGBE_FDIRSKEY,IXGBE_ATR_SIGNATURE_HASH_KEY);
1344 * Poll init-done after we write the register. Estimated times:
1345 * 10G: PBALLOC = 11b, timing is 60us
1346 * 1G: PBALLOC = 11b, timing is 600us
1347 * 100M: PBALLOC = 11b, timing is 6ms
1349 * Multiple these timings by 4 if under full Rx load
1351 * So we'll poll for IXGBE_FDIR_INIT_DONE_POLL times, sleeping for
1352 * 1 msec per poll time. If we're at line rate and drop to 100M, then
1353 * this might not finish in our poll time, but we can live with that
1357 /* Set the maximum length per hash bucket to 0xA filters */
1358 fdirctrl |= (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT);
1360 IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
1361 IXGBE_WRITE_FLUSH(hw);
1362 for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
1363 if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) &
1364 IXGBE_FDIRCTRL_INIT_DONE)
1368 if (i >= IXGBE_FDIR_INIT_DONE_POLL)
1369 DEBUGOUT("Flow Director Perfect poll time exceeded!\n");
1371 return IXGBE_SUCCESS;
1375 * ixgbe_atr_compute_hash_82599 - Compute the hashes for SW ATR
1376 * @stream: input bitstream to compute the hash on
1377 * @key: 32-bit hash key
1379 u32 ixgbe_atr_compute_hash_82599(union ixgbe_atr_input *atr_input,
1383 * The algorithm is as follows:
1384 * Hash[15:0] = Sum { S[n] x K[n+16] }, n = 0...350
1385 * where Sum {A[n]}, n = 0...n is bitwise XOR of A[0], A[1]...A[n]
1386 * and A[n] x B[n] is bitwise AND between same length strings
1388 * K[n] is 16 bits, defined as:
1389 * for n modulo 32 >= 15, K[n] = K[n % 32 : (n % 32) - 15]
1390 * for n modulo 32 < 15, K[n] =
1391 * K[(n % 32:0) | (31:31 - (14 - (n % 32)))]
1393 * S[n] is 16 bits, defined as:
1394 * for n >= 15, S[n] = S[n:n - 15]
1395 * for n < 15, S[n] = S[(n:0) | (350:350 - (14 - n))]
1397 * To simplify for programming, the algorithm is implemented
1398 * in software this way:
1400 * key[31:0], hi_hash_dword[31:0], lo_hash_dword[31:0], hash[15:0]
1402 * for (i = 0; i < 352; i+=32)
1403 * hi_hash_dword[31:0] ^= Stream[(i+31):i];
1405 * lo_hash_dword[15:0] ^= Stream[15:0];
1406 * lo_hash_dword[15:0] ^= hi_hash_dword[31:16];
1407 * lo_hash_dword[31:16] ^= hi_hash_dword[15:0];
1409 * hi_hash_dword[31:0] ^= Stream[351:320];
1412 * hash[15:0] ^= Stream[15:0];
1414 * for (i = 0; i < 16; i++) {
1416 * hash[15:0] ^= lo_hash_dword[(i+15):i];
1418 * hash[15:0] ^= hi_hash_dword[(i+15):i];
1422 __be32 common_hash_dword = 0;
1423 u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
1424 u32 hash_result = 0;
1427 /* record the flow_vm_vlan bits as they are a key part to the hash */
1428 flow_vm_vlan = IXGBE_NTOHL(atr_input->dword_stream[0]);
1430 /* generate common hash dword */
1431 for (i = 10; i; i -= 2)
1432 common_hash_dword ^= atr_input->dword_stream[i] ^
1433 atr_input->dword_stream[i - 1];
1435 hi_hash_dword = IXGBE_NTOHL(common_hash_dword);
1437 /* low dword is word swapped version of common */
1438 lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
1440 /* apply flow ID/VM pool/VLAN ID bits to hash words */
1441 hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);
1443 /* Process bits 0 and 16 */
1444 if (key & 0x0001) hash_result ^= lo_hash_dword;
1445 if (key & 0x00010000) hash_result ^= hi_hash_dword;
1448 * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
1449 * delay this because bit 0 of the stream should not be processed
1450 * so we do not add the vlan until after bit 0 was processed
1452 lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);
1455 /* process the remaining 30 bits in the key 2 bits at a time */
1456 for (i = 15; i; i-- ) {
1457 if (key & (0x0001 << i)) hash_result ^= lo_hash_dword >> i;
1458 if (key & (0x00010000 << i)) hash_result ^= hi_hash_dword >> i;
1461 return hash_result & IXGBE_ATR_HASH_MASK;
1465 * These defines allow us to quickly generate all of the necessary instructions
1466 * in the function below by simply calling out IXGBE_COMPUTE_SIG_HASH_ITERATION
1467 * for values 0 through 15
1469 #define IXGBE_ATR_COMMON_HASH_KEY \
1470 (IXGBE_ATR_BUCKET_HASH_KEY & IXGBE_ATR_SIGNATURE_HASH_KEY)
1471 #define IXGBE_COMPUTE_SIG_HASH_ITERATION(_n) \
1474 if (IXGBE_ATR_COMMON_HASH_KEY & (0x01 << n)) \
1475 common_hash ^= lo_hash_dword >> n; \
1476 else if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << n)) \
1477 bucket_hash ^= lo_hash_dword >> n; \
1478 else if (IXGBE_ATR_SIGNATURE_HASH_KEY & (0x01 << n)) \
1479 sig_hash ^= lo_hash_dword << (16 - n); \
1480 if (IXGBE_ATR_COMMON_HASH_KEY & (0x01 << (n + 16))) \
1481 common_hash ^= hi_hash_dword >> n; \
1482 else if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << (n + 16))) \
1483 bucket_hash ^= hi_hash_dword >> n; \
1484 else if (IXGBE_ATR_SIGNATURE_HASH_KEY & (0x01 << (n + 16))) \
1485 sig_hash ^= hi_hash_dword << (16 - n); \
1489 * ixgbe_atr_compute_sig_hash_82599 - Compute the signature hash
1490 * @stream: input bitstream to compute the hash on
1492 * This function is almost identical to the function above but contains
1493 * several optomizations such as unwinding all of the loops, letting the
1494 * compiler work out all of the conditional ifs since the keys are static
1495 * defines, and computing two keys at once since the hashed dword stream
1496 * will be the same for both keys.
1498 static u32 ixgbe_atr_compute_sig_hash_82599(union ixgbe_atr_hash_dword input,
1499 union ixgbe_atr_hash_dword common)
1501 u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
1502 u32 sig_hash = 0, bucket_hash = 0, common_hash = 0;
1504 /* record the flow_vm_vlan bits as they are a key part to the hash */
1505 flow_vm_vlan = IXGBE_NTOHL(input.dword);
1507 /* generate common hash dword */
1508 hi_hash_dword = IXGBE_NTOHL(common.dword);
1510 /* low dword is word swapped version of common */
1511 lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
1513 /* apply flow ID/VM pool/VLAN ID bits to hash words */
1514 hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);
1516 /* Process bits 0 and 16 */
1517 IXGBE_COMPUTE_SIG_HASH_ITERATION(0);
1520 * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
1521 * delay this because bit 0 of the stream should not be processed
1522 * so we do not add the vlan until after bit 0 was processed
1524 lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);
1526 /* Process remaining 30 bit of the key */
1527 IXGBE_COMPUTE_SIG_HASH_ITERATION(1);
1528 IXGBE_COMPUTE_SIG_HASH_ITERATION(2);
1529 IXGBE_COMPUTE_SIG_HASH_ITERATION(3);
1530 IXGBE_COMPUTE_SIG_HASH_ITERATION(4);
1531 IXGBE_COMPUTE_SIG_HASH_ITERATION(5);
1532 IXGBE_COMPUTE_SIG_HASH_ITERATION(6);
1533 IXGBE_COMPUTE_SIG_HASH_ITERATION(7);
1534 IXGBE_COMPUTE_SIG_HASH_ITERATION(8);
1535 IXGBE_COMPUTE_SIG_HASH_ITERATION(9);
1536 IXGBE_COMPUTE_SIG_HASH_ITERATION(10);
1537 IXGBE_COMPUTE_SIG_HASH_ITERATION(11);
1538 IXGBE_COMPUTE_SIG_HASH_ITERATION(12);
1539 IXGBE_COMPUTE_SIG_HASH_ITERATION(13);
1540 IXGBE_COMPUTE_SIG_HASH_ITERATION(14);
1541 IXGBE_COMPUTE_SIG_HASH_ITERATION(15);
1543 /* combine common_hash result with signature and bucket hashes */
1544 bucket_hash ^= common_hash;
1545 bucket_hash &= IXGBE_ATR_HASH_MASK;
1547 sig_hash ^= common_hash << 16;
1548 sig_hash &= IXGBE_ATR_HASH_MASK << 16;
1550 /* return completed signature hash */
1551 return sig_hash ^ bucket_hash;
1555 * ixgbe_atr_add_signature_filter_82599 - Adds a signature hash filter
1556 * @hw: pointer to hardware structure
1557 * @stream: input bitstream
1558 * @queue: queue index to direct traffic to
1560 s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
1561 union ixgbe_atr_hash_dword input,
1562 union ixgbe_atr_hash_dword common,
1568 DEBUGFUNC("ixgbe_fdir_add_signature_filter_82599");
1571 * Get the flow_type in order to program FDIRCMD properly
1572 * lowest 2 bits are FDIRCMD.L4TYPE, third lowest bit is FDIRCMD.IPV6
1574 switch (input.formatted.flow_type) {
1575 case IXGBE_ATR_FLOW_TYPE_TCPV4:
1576 case IXGBE_ATR_FLOW_TYPE_UDPV4:
1577 case IXGBE_ATR_FLOW_TYPE_SCTPV4:
1578 case IXGBE_ATR_FLOW_TYPE_TCPV6:
1579 case IXGBE_ATR_FLOW_TYPE_UDPV6:
1580 case IXGBE_ATR_FLOW_TYPE_SCTPV6:
1583 DEBUGOUT(" Error on flow type input\n");
1584 return IXGBE_ERR_CONFIG;
1587 /* configure FDIRCMD register */
1588 fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE |
1589 IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
1590 fdircmd |= input.formatted.flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
1591 fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
1594 * The lower 32-bits of fdirhashcmd is for FDIRHASH, the upper 32-bits
1595 * is for FDIRCMD. Then do a 64-bit register write from FDIRHASH.
1597 fdirhashcmd = (u64)fdircmd << 32;
1598 fdirhashcmd |= ixgbe_atr_compute_sig_hash_82599(input, common);
1599 IXGBE_WRITE_REG64(hw, IXGBE_FDIRHASH, fdirhashcmd);
1601 DEBUGOUT2("Tx Queue=%x hash=%x\n", queue, (u32)fdirhashcmd);
1603 return IXGBE_SUCCESS;
1607 * ixgbe_get_fdirtcpm_82599 - generate a tcp port from atr_input_masks
1608 * @input_mask: mask to be bit swapped
1610 * The source and destination port masks for flow director are bit swapped
1611 * in that bit 15 effects bit 0, 14 effects 1, 13, 2 etc. In order to
1612 * generate a correctly swapped value we need to bit swap the mask and that
1613 * is what is accomplished by this function.
1615 static u32 ixgbe_get_fdirtcpm_82599(struct ixgbe_atr_input_masks *input_masks)
1617 u32 mask = IXGBE_NTOHS(input_masks->dst_port_mask);
1618 mask <<= IXGBE_FDIRTCPM_DPORTM_SHIFT;
1619 mask |= IXGBE_NTOHS(input_masks->src_port_mask);
1620 mask = ((mask & 0x55555555) << 1) | ((mask & 0xAAAAAAAA) >> 1);
1621 mask = ((mask & 0x33333333) << 2) | ((mask & 0xCCCCCCCC) >> 2);
1622 mask = ((mask & 0x0F0F0F0F) << 4) | ((mask & 0xF0F0F0F0) >> 4);
1623 return ((mask & 0x00FF00FF) << 8) | ((mask & 0xFF00FF00) >> 8);
1627 * These two macros are meant to address the fact that we have registers
1628 * that are either all or in part big-endian. As a result on big-endian
1629 * systems we will end up byte swapping the value to little-endian before
1630 * it is byte swapped again and written to the hardware in the original
1631 * big-endian format.
1633 #define IXGBE_STORE_AS_BE32(_value) \
1634 (((u32)(_value) >> 24) | (((u32)(_value) & 0x00FF0000) >> 8) | \
1635 (((u32)(_value) & 0x0000FF00) << 8) | ((u32)(_value) << 24))
1637 #define IXGBE_WRITE_REG_BE32(a, reg, value) \
1638 IXGBE_WRITE_REG((a), (reg), IXGBE_STORE_AS_BE32(IXGBE_NTOHL(value)))
1640 #define IXGBE_STORE_AS_BE16(_value) \
1641 (((u16)(_value) >> 8) | ((u16)(_value) << 8))
1645 * ixgbe_fdir_add_perfect_filter_82599 - Adds a perfect filter
1646 * @hw: pointer to hardware structure
1647 * @input: input bitstream
1648 * @input_masks: masks for the input bitstream
1649 * @soft_id: software index for the filters
1650 * @queue: queue index to direct traffic to
1652 * Note that the caller to this function must lock before calling, since the
1653 * hardware writes must be protected from one another.
1655 s32 ixgbe_fdir_add_perfect_filter_82599(struct ixgbe_hw *hw,
1656 union ixgbe_atr_input *input,
1657 struct ixgbe_atr_input_masks *input_masks,
1658 u16 soft_id, u8 queue)
1662 u32 fdirport, fdirtcpm;
1664 /* start with VLAN, flex bytes, VM pool, and IPv6 destination masked */
1665 u32 fdirm = IXGBE_FDIRM_VLANID | IXGBE_FDIRM_VLANP | IXGBE_FDIRM_FLEX |
1666 IXGBE_FDIRM_POOL | IXGBE_FDIRM_DIPv6;
1668 DEBUGFUNC("ixgbe_fdir_add_perfect_filter_82599");
1671 * Check flow_type formatting, and bail out before we touch the hardware
1672 * if there's a configuration issue
1674 switch (input->formatted.flow_type) {
1675 case IXGBE_ATR_FLOW_TYPE_IPV4:
1676 /* use the L4 protocol mask for raw IPv4/IPv6 traffic */
1677 fdirm |= IXGBE_FDIRM_L4P;
1678 case IXGBE_ATR_FLOW_TYPE_SCTPV4:
1679 if (input_masks->dst_port_mask || input_masks->src_port_mask) {
1680 DEBUGOUT(" Error on src/dst port mask\n");
1681 return IXGBE_ERR_CONFIG;
1683 case IXGBE_ATR_FLOW_TYPE_TCPV4:
1684 case IXGBE_ATR_FLOW_TYPE_UDPV4:
1687 DEBUGOUT(" Error on flow type input\n");
1688 return IXGBE_ERR_CONFIG;
1692 * Program the relevant mask registers. If src/dst_port or src/dst_addr
1693 * are zero, then assume a full mask for that field. Also assume that
1694 * a VLAN of 0 is unspecified, so mask that out as well. L4type
1695 * cannot be masked out in this implementation.
1697 * This also assumes IPv4 only. IPv6 masking isn't supported at this
1702 switch (IXGBE_NTOHS(input_masks->vlan_id_mask) & 0xEFFF) {
1704 /* Unmask VLAN ID - bit 0 and fall through to unmask prio */
1705 fdirm &= ~IXGBE_FDIRM_VLANID;
1707 /* Unmask VLAN prio - bit 1 */
1708 fdirm &= ~IXGBE_FDIRM_VLANP;
1711 /* Unmask VLAN ID - bit 0 */
1712 fdirm &= ~IXGBE_FDIRM_VLANID;
1715 /* do nothing, vlans already masked */
1718 DEBUGOUT(" Error on VLAN mask\n");
1719 return IXGBE_ERR_CONFIG;
1722 if (input_masks->flex_mask & 0xFFFF) {
1723 if ((input_masks->flex_mask & 0xFFFF) != 0xFFFF) {
1724 DEBUGOUT(" Error on flexible byte mask\n");
1725 return IXGBE_ERR_CONFIG;
1727 /* Unmask Flex Bytes - bit 4 */
1728 fdirm &= ~IXGBE_FDIRM_FLEX;
1731 /* Now mask VM pool and destination IPv6 - bits 5 and 2 */
1732 IXGBE_WRITE_REG(hw, IXGBE_FDIRM, fdirm);
1734 /* store the TCP/UDP port masks, bit reversed from port layout */
1735 fdirtcpm = ixgbe_get_fdirtcpm_82599(input_masks);
1737 /* write both the same so that UDP and TCP use the same mask */
1738 IXGBE_WRITE_REG(hw, IXGBE_FDIRTCPM, ~fdirtcpm);
1739 IXGBE_WRITE_REG(hw, IXGBE_FDIRUDPM, ~fdirtcpm);
1741 /* store source and destination IP masks (big-enian) */
1742 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIP4M,
1743 ~input_masks->src_ip_mask[0]);
1744 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRDIP4M,
1745 ~input_masks->dst_ip_mask[0]);
1747 /* Apply masks to input data */
1748 input->formatted.vlan_id &= input_masks->vlan_id_mask;
1749 input->formatted.flex_bytes &= input_masks->flex_mask;
1750 input->formatted.src_port &= input_masks->src_port_mask;
1751 input->formatted.dst_port &= input_masks->dst_port_mask;
1752 input->formatted.src_ip[0] &= input_masks->src_ip_mask[0];
1753 input->formatted.dst_ip[0] &= input_masks->dst_ip_mask[0];
1755 /* record vlan (little-endian) and flex_bytes(big-endian) */
1757 IXGBE_STORE_AS_BE16(IXGBE_NTOHS(input->formatted.flex_bytes));
1758 fdirvlan <<= IXGBE_FDIRVLAN_FLEX_SHIFT;
1759 fdirvlan |= IXGBE_NTOHS(input->formatted.vlan_id);
1760 IXGBE_WRITE_REG(hw, IXGBE_FDIRVLAN, fdirvlan);
1762 /* record source and destination port (little-endian)*/
1763 fdirport = IXGBE_NTOHS(input->formatted.dst_port);
1764 fdirport <<= IXGBE_FDIRPORT_DESTINATION_SHIFT;
1765 fdirport |= IXGBE_NTOHS(input->formatted.src_port);
1766 IXGBE_WRITE_REG(hw, IXGBE_FDIRPORT, fdirport);
1768 /* record the first 32 bits of the destination address (big-endian) */
1769 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPDA, input->formatted.dst_ip[0]);
1771 /* record the source address (big-endian) */
1772 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPSA, input->formatted.src_ip[0]);
1774 /* configure FDIRCMD register */
1775 fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE |
1776 IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
1777 fdircmd |= input->formatted.flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
1778 fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
1780 /* we only want the bucket hash so drop the upper 16 bits */
1781 fdirhash = ixgbe_atr_compute_hash_82599(input,
1782 IXGBE_ATR_BUCKET_HASH_KEY);
1783 fdirhash |= soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT;
1785 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
1786 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, fdircmd);
1788 return IXGBE_SUCCESS;
1792 * ixgbe_read_analog_reg8_82599 - Reads 8 bit Omer analog register
1793 * @hw: pointer to hardware structure
1794 * @reg: analog register to read
1797 * Performs read operation to Omer analog register specified.
1799 s32 ixgbe_read_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 *val)
1803 DEBUGFUNC("ixgbe_read_analog_reg8_82599");
1805 IXGBE_WRITE_REG(hw, IXGBE_CORECTL, IXGBE_CORECTL_WRITE_CMD |
1807 IXGBE_WRITE_FLUSH(hw);
1809 core_ctl = IXGBE_READ_REG(hw, IXGBE_CORECTL);
1810 *val = (u8)core_ctl;
1812 return IXGBE_SUCCESS;
1816 * ixgbe_write_analog_reg8_82599 - Writes 8 bit Omer analog register
1817 * @hw: pointer to hardware structure
1818 * @reg: atlas register to write
1819 * @val: value to write
1821 * Performs write operation to Omer analog register specified.
1823 s32 ixgbe_write_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 val)
1827 DEBUGFUNC("ixgbe_write_analog_reg8_82599");
1829 core_ctl = (reg << 8) | val;
1830 IXGBE_WRITE_REG(hw, IXGBE_CORECTL, core_ctl);
1831 IXGBE_WRITE_FLUSH(hw);
1834 return IXGBE_SUCCESS;
1838 * ixgbe_start_hw_rev_1_82599 - Prepare hardware for Tx/Rx
1839 * @hw: pointer to hardware structure
1841 * Starts the hardware using the generic start_hw function
1842 * and the generation start_hw function.
1843 * Then performs revision-specific operations, if any.
1845 s32 ixgbe_start_hw_rev_1_82599(struct ixgbe_hw *hw)
1847 s32 ret_val = IXGBE_SUCCESS;
1849 DEBUGFUNC("ixgbe_start_hw_rev_1__82599");
1851 ret_val = ixgbe_start_hw_generic(hw);
1852 if (ret_val != IXGBE_SUCCESS)
1855 ret_val = ixgbe_start_hw_gen2(hw);
1856 if (ret_val != IXGBE_SUCCESS)
1859 /* We need to run link autotry after the driver loads */
1860 hw->mac.autotry_restart = TRUE;
1862 if (ret_val == IXGBE_SUCCESS)
1863 ret_val = ixgbe_verify_fw_version_82599(hw);
1869 * ixgbe_identify_phy_82599 - Get physical layer module
1870 * @hw: pointer to hardware structure
1872 * Determines the physical layer module found on the current adapter.
1873 * If PHY already detected, maintains current PHY type in hw struct,
1874 * otherwise executes the PHY detection routine.
1876 s32 ixgbe_identify_phy_82599(struct ixgbe_hw *hw)
1878 s32 status = IXGBE_ERR_PHY_ADDR_INVALID;
1880 DEBUGFUNC("ixgbe_identify_phy_82599");
1882 /* Detect PHY if not unknown - returns success if already detected. */
1883 status = ixgbe_identify_phy_generic(hw);
1884 if (status != IXGBE_SUCCESS) {
1885 /* 82599 10GBASE-T requires an external PHY */
1886 if (hw->mac.ops.get_media_type(hw) == ixgbe_media_type_copper)
1889 status = ixgbe_identify_sfp_module_generic(hw);
1892 /* Set PHY type none if no PHY detected */
1893 if (hw->phy.type == ixgbe_phy_unknown) {
1894 hw->phy.type = ixgbe_phy_none;
1895 status = IXGBE_SUCCESS;
1898 /* Return error if SFP module has been detected but is not supported */
1899 if (hw->phy.type == ixgbe_phy_sfp_unsupported)
1900 status = IXGBE_ERR_SFP_NOT_SUPPORTED;
1907 * ixgbe_get_supported_physical_layer_82599 - Returns physical layer type
1908 * @hw: pointer to hardware structure
1910 * Determines physical layer capabilities of the current configuration.
1912 u32 ixgbe_get_supported_physical_layer_82599(struct ixgbe_hw *hw)
1914 u32 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
1915 u32 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
1916 u32 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
1917 u32 pma_pmd_10g_serial = autoc2 & IXGBE_AUTOC2_10G_SERIAL_PMA_PMD_MASK;
1918 u32 pma_pmd_10g_parallel = autoc & IXGBE_AUTOC_10G_PMA_PMD_MASK;
1919 u32 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;
1920 u16 ext_ability = 0;
1921 u8 comp_codes_10g = 0;
1922 u8 comp_codes_1g = 0;
1924 DEBUGFUNC("ixgbe_get_support_physical_layer_82599");
1926 hw->phy.ops.identify(hw);
1928 switch (hw->phy.type) {
1931 case ixgbe_phy_cu_unknown:
1932 hw->phy.ops.read_reg(hw, IXGBE_MDIO_PHY_EXT_ABILITY,
1933 IXGBE_MDIO_PMA_PMD_DEV_TYPE, &ext_ability);
1934 if (ext_ability & IXGBE_MDIO_PHY_10GBASET_ABILITY)
1935 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_T;
1936 if (ext_ability & IXGBE_MDIO_PHY_1000BASET_ABILITY)
1937 physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_T;
1938 if (ext_ability & IXGBE_MDIO_PHY_100BASETX_ABILITY)
1939 physical_layer |= IXGBE_PHYSICAL_LAYER_100BASE_TX;
1945 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
1946 case IXGBE_AUTOC_LMS_1G_AN:
1947 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
1948 if (pma_pmd_1g == IXGBE_AUTOC_1G_KX_BX) {
1949 physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_KX |
1950 IXGBE_PHYSICAL_LAYER_1000BASE_BX;
1953 /* SFI mode so read SFP module */
1956 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
1957 if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_CX4)
1958 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_CX4;
1959 else if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_KX4)
1960 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
1961 else if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_XAUI)
1962 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_XAUI;
1965 case IXGBE_AUTOC_LMS_10G_SERIAL:
1966 if (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_KR) {
1967 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KR;
1969 } else if (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI)
1972 case IXGBE_AUTOC_LMS_KX4_KX_KR:
1973 case IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN:
1974 if (autoc & IXGBE_AUTOC_KX_SUPP)
1975 physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_KX;
1976 if (autoc & IXGBE_AUTOC_KX4_SUPP)
1977 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
1978 if (autoc & IXGBE_AUTOC_KR_SUPP)
1979 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KR;
1988 /* SFP check must be done last since DA modules are sometimes used to
1989 * test KR mode - we need to id KR mode correctly before SFP module.
1990 * Call identify_sfp because the pluggable module may have changed */
1991 hw->phy.ops.identify_sfp(hw);
1992 if (hw->phy.sfp_type == ixgbe_sfp_type_not_present)
1995 switch (hw->phy.type) {
1996 case ixgbe_phy_sfp_passive_tyco:
1997 case ixgbe_phy_sfp_passive_unknown:
1998 physical_layer = IXGBE_PHYSICAL_LAYER_SFP_PLUS_CU;
2000 case ixgbe_phy_sfp_ftl_active:
2001 case ixgbe_phy_sfp_active_unknown:
2002 physical_layer = IXGBE_PHYSICAL_LAYER_SFP_ACTIVE_DA;
2004 case ixgbe_phy_sfp_avago:
2005 case ixgbe_phy_sfp_ftl:
2006 case ixgbe_phy_sfp_intel:
2007 case ixgbe_phy_sfp_unknown:
2008 hw->phy.ops.read_i2c_eeprom(hw,
2009 IXGBE_SFF_1GBE_COMP_CODES, &comp_codes_1g);
2010 hw->phy.ops.read_i2c_eeprom(hw,
2011 IXGBE_SFF_10GBE_COMP_CODES, &comp_codes_10g);
2012 if (comp_codes_10g & IXGBE_SFF_10GBASESR_CAPABLE)
2013 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_SR;
2014 else if (comp_codes_10g & IXGBE_SFF_10GBASELR_CAPABLE)
2015 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_LR;
2016 else if (comp_codes_1g & IXGBE_SFF_1GBASET_CAPABLE)
2017 physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_T;
2024 return physical_layer;
2028 * ixgbe_enable_rx_dma_82599 - Enable the Rx DMA unit on 82599
2029 * @hw: pointer to hardware structure
2030 * @regval: register value to write to RXCTRL
2032 * Enables the Rx DMA unit for 82599
2034 s32 ixgbe_enable_rx_dma_82599(struct ixgbe_hw *hw, u32 regval)
2036 #define IXGBE_MAX_SECRX_POLL 30
2040 DEBUGFUNC("ixgbe_enable_rx_dma_82599");
2043 * Workaround for 82599 silicon errata when enabling the Rx datapath.
2044 * If traffic is incoming before we enable the Rx unit, it could hang
2045 * the Rx DMA unit. Therefore, make sure the security engine is
2046 * completely disabled prior to enabling the Rx unit.
2048 secrxreg = IXGBE_READ_REG(hw, IXGBE_SECRXCTRL);
2049 secrxreg |= IXGBE_SECRXCTRL_RX_DIS;
2050 IXGBE_WRITE_REG(hw, IXGBE_SECRXCTRL, secrxreg);
2051 for (i = 0; i < IXGBE_MAX_SECRX_POLL; i++) {
2052 secrxreg = IXGBE_READ_REG(hw, IXGBE_SECRXSTAT);
2053 if (secrxreg & IXGBE_SECRXSTAT_SECRX_RDY)
2056 /* Use interrupt-safe sleep just in case */
2060 /* For informational purposes only */
2061 if (i >= IXGBE_MAX_SECRX_POLL)
2062 DEBUGOUT("Rx unit being enabled before security "
2063 "path fully disabled. Continuing with init.\n");
2065 IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, regval);
2066 secrxreg = IXGBE_READ_REG(hw, IXGBE_SECRXCTRL);
2067 secrxreg &= ~IXGBE_SECRXCTRL_RX_DIS;
2068 IXGBE_WRITE_REG(hw, IXGBE_SECRXCTRL, secrxreg);
2069 IXGBE_WRITE_FLUSH(hw);
2071 return IXGBE_SUCCESS;
2075 * ixgbe_verify_fw_version_82599 - verify fw version for 82599
2076 * @hw: pointer to hardware structure
2078 * Verifies that installed the firmware version is 0.6 or higher
2079 * for SFI devices. All 82599 SFI devices should have version 0.6 or higher.
2081 * Returns IXGBE_ERR_EEPROM_VERSION if the FW is not present or
2082 * if the FW version is not supported.
2084 static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw)
2086 s32 status = IXGBE_ERR_EEPROM_VERSION;
2087 u16 fw_offset, fw_ptp_cfg_offset;
2090 DEBUGFUNC("ixgbe_verify_fw_version_82599");
2092 /* firmware check is only necessary for SFI devices */
2093 if (hw->phy.media_type != ixgbe_media_type_fiber) {
2094 status = IXGBE_SUCCESS;
2095 goto fw_version_out;
2098 /* get the offset to the Firmware Module block */
2099 hw->eeprom.ops.read(hw, IXGBE_FW_PTR, &fw_offset);
2101 if ((fw_offset == 0) || (fw_offset == 0xFFFF))
2102 goto fw_version_out;
2104 /* get the offset to the Pass Through Patch Configuration block */
2105 hw->eeprom.ops.read(hw, (fw_offset +
2106 IXGBE_FW_PASSTHROUGH_PATCH_CONFIG_PTR),
2107 &fw_ptp_cfg_offset);
2109 if ((fw_ptp_cfg_offset == 0) || (fw_ptp_cfg_offset == 0xFFFF))
2110 goto fw_version_out;
2112 /* get the firmware version */
2113 hw->eeprom.ops.read(hw, (fw_ptp_cfg_offset +
2114 IXGBE_FW_PATCH_VERSION_4),
2117 if (fw_version > 0x5)
2118 status = IXGBE_SUCCESS;
2125 * ixgbe_verify_lesm_fw_enabled_82599 - Checks LESM FW module state.
2126 * @hw: pointer to hardware structure
2128 * Returns TRUE if the LESM FW module is present and enabled. Otherwise
2129 * returns FALSE. Smart Speed must be disabled if LESM FW module is enabled.
2131 bool ixgbe_verify_lesm_fw_enabled_82599(struct ixgbe_hw *hw)
2133 bool lesm_enabled = FALSE;
2134 u16 fw_offset, fw_lesm_param_offset, fw_lesm_state;
2137 DEBUGFUNC("ixgbe_verify_lesm_fw_enabled_82599");
2139 /* get the offset to the Firmware Module block */
2140 status = hw->eeprom.ops.read(hw, IXGBE_FW_PTR, &fw_offset);
2142 if ((status != IXGBE_SUCCESS) ||
2143 (fw_offset == 0) || (fw_offset == 0xFFFF))
2146 /* get the offset to the LESM Parameters block */
2147 status = hw->eeprom.ops.read(hw, (fw_offset +
2148 IXGBE_FW_LESM_PARAMETERS_PTR),
2149 &fw_lesm_param_offset);
2151 if ((status != IXGBE_SUCCESS) ||
2152 (fw_lesm_param_offset == 0) || (fw_lesm_param_offset == 0xFFFF))
2155 /* get the lesm state word */
2156 status = hw->eeprom.ops.read(hw, (fw_lesm_param_offset +
2157 IXGBE_FW_LESM_STATE_1),
2160 if ((status == IXGBE_SUCCESS) &&
2161 (fw_lesm_state & IXGBE_FW_LESM_STATE_ENABLED))
2162 lesm_enabled = TRUE;
2165 return lesm_enabled;