1 /******************************************************************************
2 SPDX-License-Identifier: BSD-3-Clause
4 Copyright (c) 2001-2020, Intel Corporation
7 Redistribution and use in source and binary forms, with or without
8 modification, are permitted provided that the following conditions are met:
10 1. Redistributions of source code must retain the above copyright notice,
11 this list of conditions and the following disclaimer.
13 2. Redistributions in binary form must reproduce the above copyright
14 notice, this list of conditions and the following disclaimer in the
15 documentation and/or other materials provided with the distribution.
17 3. Neither the name of the Intel Corporation nor the names of its
18 contributors may be used to endorse or promote products derived from
19 this software without specific prior written permission.
21 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
22 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
25 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 POSSIBILITY OF SUCH DAMAGE.
33 ******************************************************************************/
36 #include "ixgbe_type.h"
37 #include "ixgbe_82599.h"
38 #include "ixgbe_api.h"
39 #include "ixgbe_common.h"
40 #include "ixgbe_phy.h"
42 #define IXGBE_82599_MAX_TX_QUEUES 128
43 #define IXGBE_82599_MAX_RX_QUEUES 128
44 #define IXGBE_82599_RAR_ENTRIES 128
45 #define IXGBE_82599_MC_TBL_SIZE 128
46 #define IXGBE_82599_VFT_TBL_SIZE 128
47 #define IXGBE_82599_RX_PB_SIZE 512
49 static s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw,
50 ixgbe_link_speed speed,
51 bool autoneg_wait_to_complete);
52 static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw);
53 static s32 ixgbe_read_eeprom_82599(struct ixgbe_hw *hw,
54 u16 offset, u16 *data);
55 static s32 ixgbe_read_eeprom_buffer_82599(struct ixgbe_hw *hw, u16 offset,
56 u16 words, u16 *data);
57 static s32 ixgbe_read_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
58 u8 dev_addr, u8 *data);
59 static s32 ixgbe_write_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
60 u8 dev_addr, u8 data);
62 void ixgbe_init_mac_link_ops_82599(struct ixgbe_hw *hw)
64 struct ixgbe_mac_info *mac = &hw->mac;
66 DEBUGFUNC("ixgbe_init_mac_link_ops_82599");
69 * enable the laser control functions for SFP+ fiber
72 if ((mac->ops.get_media_type(hw) == ixgbe_media_type_fiber) &&
73 !ixgbe_mng_enabled(hw)) {
74 mac->ops.disable_tx_laser =
75 ixgbe_disable_tx_laser_multispeed_fiber;
76 mac->ops.enable_tx_laser =
77 ixgbe_enable_tx_laser_multispeed_fiber;
78 mac->ops.flap_tx_laser = ixgbe_flap_tx_laser_multispeed_fiber;
81 mac->ops.disable_tx_laser = NULL;
82 mac->ops.enable_tx_laser = NULL;
83 mac->ops.flap_tx_laser = NULL;
86 if (hw->phy.multispeed_fiber) {
87 /* Set up dual speed SFP+ support */
88 mac->ops.setup_link = ixgbe_setup_mac_link_multispeed_fiber;
89 mac->ops.setup_mac_link = ixgbe_setup_mac_link_82599;
90 mac->ops.set_rate_select_speed =
91 ixgbe_set_hard_rate_select_speed;
92 if (ixgbe_get_media_type(hw) == ixgbe_media_type_fiber_fixed)
93 mac->ops.set_rate_select_speed =
94 ixgbe_set_soft_rate_select_speed;
96 if ((ixgbe_get_media_type(hw) == ixgbe_media_type_backplane) &&
97 (hw->phy.smart_speed == ixgbe_smart_speed_auto ||
98 hw->phy.smart_speed == ixgbe_smart_speed_on) &&
99 !ixgbe_verify_lesm_fw_enabled_82599(hw)) {
100 mac->ops.setup_link = ixgbe_setup_mac_link_smartspeed;
102 mac->ops.setup_link = ixgbe_setup_mac_link_82599;
108 * ixgbe_init_phy_ops_82599 - PHY/SFP specific init
109 * @hw: pointer to hardware structure
111 * Initialize any function pointers that were not able to be
112 * set during init_shared_code because the PHY/SFP type was
113 * not known. Perform the SFP init if necessary.
116 s32 ixgbe_init_phy_ops_82599(struct ixgbe_hw *hw)
118 struct ixgbe_mac_info *mac = &hw->mac;
119 struct ixgbe_phy_info *phy = &hw->phy;
120 s32 ret_val = IXGBE_SUCCESS;
123 DEBUGFUNC("ixgbe_init_phy_ops_82599");
125 if (hw->device_id == IXGBE_DEV_ID_82599_QSFP_SF_QP) {
126 /* Store flag indicating I2C bus access control unit. */
127 hw->phy.qsfp_shared_i2c_bus = true;
129 /* Initialize access to QSFP+ I2C bus */
130 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
131 esdp |= IXGBE_ESDP_SDP0_DIR;
132 esdp &= ~IXGBE_ESDP_SDP1_DIR;
133 esdp &= ~IXGBE_ESDP_SDP0;
134 esdp &= ~IXGBE_ESDP_SDP0_NATIVE;
135 esdp &= ~IXGBE_ESDP_SDP1_NATIVE;
136 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
137 IXGBE_WRITE_FLUSH(hw);
139 phy->ops.read_i2c_byte = ixgbe_read_i2c_byte_82599;
140 phy->ops.write_i2c_byte = ixgbe_write_i2c_byte_82599;
142 /* Identify the PHY or SFP module */
143 ret_val = phy->ops.identify(hw);
144 if (ret_val == IXGBE_ERR_SFP_NOT_SUPPORTED)
145 goto init_phy_ops_out;
147 /* Setup function pointers based on detected SFP module and speeds */
148 ixgbe_init_mac_link_ops_82599(hw);
149 if (hw->phy.sfp_type != ixgbe_sfp_type_unknown)
150 hw->phy.ops.reset = NULL;
152 /* If copper media, overwrite with copper function pointers */
153 if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper) {
154 mac->ops.setup_link = ixgbe_setup_copper_link_82599;
155 mac->ops.get_link_capabilities =
156 ixgbe_get_copper_link_capabilities_generic;
159 /* Set necessary function pointers based on PHY type */
160 switch (hw->phy.type) {
162 phy->ops.setup_link = ixgbe_setup_phy_link_tnx;
163 phy->ops.check_link = ixgbe_check_phy_link_tnx;
164 phy->ops.get_firmware_version =
165 ixgbe_get_phy_firmware_version_tnx;
174 s32 ixgbe_setup_sfp_modules_82599(struct ixgbe_hw *hw)
176 s32 ret_val = IXGBE_SUCCESS;
177 u16 list_offset, data_offset, data_value;
179 DEBUGFUNC("ixgbe_setup_sfp_modules_82599");
181 if (hw->phy.sfp_type != ixgbe_sfp_type_unknown) {
182 ixgbe_init_mac_link_ops_82599(hw);
184 hw->phy.ops.reset = NULL;
186 ret_val = ixgbe_get_sfp_init_sequence_offsets(hw, &list_offset,
188 if (ret_val != IXGBE_SUCCESS)
191 /* PHY config will finish before releasing the semaphore */
192 ret_val = hw->mac.ops.acquire_swfw_sync(hw,
193 IXGBE_GSSR_MAC_CSR_SM);
194 if (ret_val != IXGBE_SUCCESS) {
195 ret_val = IXGBE_ERR_SWFW_SYNC;
199 if (hw->eeprom.ops.read(hw, ++data_offset, &data_value))
201 while (data_value != 0xffff) {
202 IXGBE_WRITE_REG(hw, IXGBE_CORECTL, data_value);
203 IXGBE_WRITE_FLUSH(hw);
204 if (hw->eeprom.ops.read(hw, ++data_offset, &data_value))
208 /* Release the semaphore */
209 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
210 /* Delay obtaining semaphore again to allow FW access
211 * prot_autoc_write uses the semaphore too.
213 msec_delay(hw->eeprom.semaphore_delay);
215 /* Restart DSP and set SFI mode */
216 ret_val = hw->mac.ops.prot_autoc_write(hw,
217 hw->mac.orig_autoc | IXGBE_AUTOC_LMS_10G_SERIAL,
221 DEBUGOUT("sfp module setup not complete\n");
222 ret_val = IXGBE_ERR_SFP_SETUP_NOT_COMPLETE;
232 /* Release the semaphore */
233 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
234 /* Delay obtaining semaphore again to allow FW access */
235 msec_delay(hw->eeprom.semaphore_delay);
236 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
237 "eeprom read at offset %d failed", data_offset);
238 return IXGBE_ERR_PHY;
242 * prot_autoc_read_82599 - Hides MAC differences needed for AUTOC read
243 * @hw: pointer to hardware structure
244 * @locked: Return the if we locked for this read.
245 * @reg_val: Value we read from AUTOC
247 * For this part (82599) we need to wrap read-modify-writes with a possible
248 * FW/SW lock. It is assumed this lock will be freed with the next
249 * prot_autoc_write_82599().
251 s32 prot_autoc_read_82599(struct ixgbe_hw *hw, bool *locked, u32 *reg_val)
256 /* If LESM is on then we need to hold the SW/FW semaphore. */
257 if (ixgbe_verify_lesm_fw_enabled_82599(hw)) {
258 ret_val = hw->mac.ops.acquire_swfw_sync(hw,
259 IXGBE_GSSR_MAC_CSR_SM);
260 if (ret_val != IXGBE_SUCCESS)
261 return IXGBE_ERR_SWFW_SYNC;
266 *reg_val = IXGBE_READ_REG(hw, IXGBE_AUTOC);
267 return IXGBE_SUCCESS;
271 * prot_autoc_write_82599 - Hides MAC differences needed for AUTOC write
272 * @hw: pointer to hardware structure
273 * @autoc: value to write to AUTOC
274 * @locked: bool to indicate whether the SW/FW lock was already taken by
275 * previous proc_autoc_read_82599.
277 * This part (82599) may need to hold the SW/FW lock around all writes to
278 * AUTOC. Likewise after a write we need to do a pipeline reset.
280 s32 prot_autoc_write_82599(struct ixgbe_hw *hw, u32 autoc, bool locked)
282 s32 ret_val = IXGBE_SUCCESS;
284 /* Blocked by MNG FW so bail */
285 if (ixgbe_check_reset_blocked(hw))
288 /* We only need to get the lock if:
289 * - We didn't do it already (in the read part of a read-modify-write)
292 if (!locked && ixgbe_verify_lesm_fw_enabled_82599(hw)) {
293 ret_val = hw->mac.ops.acquire_swfw_sync(hw,
294 IXGBE_GSSR_MAC_CSR_SM);
295 if (ret_val != IXGBE_SUCCESS)
296 return IXGBE_ERR_SWFW_SYNC;
301 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc);
302 ret_val = ixgbe_reset_pipeline_82599(hw);
305 /* Free the SW/FW semaphore as we either grabbed it here or
306 * already had it when this function was called.
309 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
315 * ixgbe_init_ops_82599 - Inits func ptrs and MAC type
316 * @hw: pointer to hardware structure
318 * Initialize the function pointers and assign the MAC type for 82599.
319 * Does not touch the hardware.
322 s32 ixgbe_init_ops_82599(struct ixgbe_hw *hw)
324 struct ixgbe_mac_info *mac = &hw->mac;
325 struct ixgbe_phy_info *phy = &hw->phy;
326 struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
329 DEBUGFUNC("ixgbe_init_ops_82599");
331 ixgbe_init_phy_ops_generic(hw);
332 ret_val = ixgbe_init_ops_generic(hw);
335 phy->ops.identify = ixgbe_identify_phy_82599;
336 phy->ops.init = ixgbe_init_phy_ops_82599;
339 mac->ops.reset_hw = ixgbe_reset_hw_82599;
340 mac->ops.enable_relaxed_ordering = ixgbe_enable_relaxed_ordering_gen2;
341 mac->ops.get_media_type = ixgbe_get_media_type_82599;
342 mac->ops.get_supported_physical_layer =
343 ixgbe_get_supported_physical_layer_82599;
344 mac->ops.disable_sec_rx_path = ixgbe_disable_sec_rx_path_generic;
345 mac->ops.enable_sec_rx_path = ixgbe_enable_sec_rx_path_generic;
346 mac->ops.enable_rx_dma = ixgbe_enable_rx_dma_82599;
347 mac->ops.read_analog_reg8 = ixgbe_read_analog_reg8_82599;
348 mac->ops.write_analog_reg8 = ixgbe_write_analog_reg8_82599;
349 mac->ops.start_hw = ixgbe_start_hw_82599;
350 mac->ops.get_san_mac_addr = ixgbe_get_san_mac_addr_generic;
351 mac->ops.set_san_mac_addr = ixgbe_set_san_mac_addr_generic;
352 mac->ops.get_device_caps = ixgbe_get_device_caps_generic;
353 mac->ops.get_wwn_prefix = ixgbe_get_wwn_prefix_generic;
354 mac->ops.get_fcoe_boot_status = ixgbe_get_fcoe_boot_status_generic;
355 mac->ops.prot_autoc_read = prot_autoc_read_82599;
356 mac->ops.prot_autoc_write = prot_autoc_write_82599;
358 /* RAR, Multicast, VLAN */
359 mac->ops.set_vmdq = ixgbe_set_vmdq_generic;
360 mac->ops.set_vmdq_san_mac = ixgbe_set_vmdq_san_mac_generic;
361 mac->ops.clear_vmdq = ixgbe_clear_vmdq_generic;
362 mac->ops.insert_mac_addr = ixgbe_insert_mac_addr_generic;
363 mac->rar_highwater = 1;
364 mac->ops.set_vfta = ixgbe_set_vfta_generic;
365 mac->ops.set_vlvf = ixgbe_set_vlvf_generic;
366 mac->ops.clear_vfta = ixgbe_clear_vfta_generic;
367 mac->ops.init_uta_tables = ixgbe_init_uta_tables_generic;
368 mac->ops.setup_sfp = ixgbe_setup_sfp_modules_82599;
369 mac->ops.set_mac_anti_spoofing = ixgbe_set_mac_anti_spoofing;
370 mac->ops.set_vlan_anti_spoofing = ixgbe_set_vlan_anti_spoofing;
373 mac->ops.get_link_capabilities = ixgbe_get_link_capabilities_82599;
374 mac->ops.check_link = ixgbe_check_mac_link_generic;
375 mac->ops.setup_rxpba = ixgbe_set_rxpba_generic;
376 ixgbe_init_mac_link_ops_82599(hw);
378 mac->mcft_size = IXGBE_82599_MC_TBL_SIZE;
379 mac->vft_size = IXGBE_82599_VFT_TBL_SIZE;
380 mac->num_rar_entries = IXGBE_82599_RAR_ENTRIES;
381 mac->rx_pb_size = IXGBE_82599_RX_PB_SIZE;
382 mac->max_rx_queues = IXGBE_82599_MAX_RX_QUEUES;
383 mac->max_tx_queues = IXGBE_82599_MAX_TX_QUEUES;
384 mac->max_msix_vectors = ixgbe_get_pcie_msix_count_generic(hw);
386 mac->arc_subsystem_valid = !!(IXGBE_READ_REG(hw, IXGBE_FWSM_BY_MAC(hw))
387 & IXGBE_FWSM_MODE_MASK);
389 hw->mbx.ops.init_params = ixgbe_init_mbx_params_pf;
392 eeprom->ops.read = ixgbe_read_eeprom_82599;
393 eeprom->ops.read_buffer = ixgbe_read_eeprom_buffer_82599;
395 /* Manageability interface */
396 mac->ops.set_fw_drv_ver = ixgbe_set_fw_drv_ver_generic;
398 mac->ops.get_thermal_sensor_data =
399 ixgbe_get_thermal_sensor_data_generic;
400 mac->ops.init_thermal_sensor_thresh =
401 ixgbe_init_thermal_sensor_thresh_generic;
403 mac->ops.bypass_rw = ixgbe_bypass_rw_generic;
404 mac->ops.bypass_valid_rd = ixgbe_bypass_valid_rd_generic;
405 mac->ops.bypass_set = ixgbe_bypass_set_generic;
406 mac->ops.bypass_rd_eep = ixgbe_bypass_rd_eep_generic;
408 mac->ops.get_rtrup2tc = ixgbe_dcb_get_rtrup2tc_generic;
414 * ixgbe_get_link_capabilities_82599 - Determines link capabilities
415 * @hw: pointer to hardware structure
416 * @speed: pointer to link speed
417 * @autoneg: true when autoneg or autotry is enabled
419 * Determines the link capabilities by reading the AUTOC register.
421 s32 ixgbe_get_link_capabilities_82599(struct ixgbe_hw *hw,
422 ixgbe_link_speed *speed,
425 s32 status = IXGBE_SUCCESS;
428 DEBUGFUNC("ixgbe_get_link_capabilities_82599");
431 /* Check if 1G SFP module. */
432 if (hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core0 ||
433 hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core1 ||
434 hw->phy.sfp_type == ixgbe_sfp_type_1g_lx_core0 ||
435 hw->phy.sfp_type == ixgbe_sfp_type_1g_lx_core1 ||
436 hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core0 ||
437 hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core1) {
438 *speed = IXGBE_LINK_SPEED_1GB_FULL;
444 * Determine link capabilities based on the stored value of AUTOC,
445 * which represents EEPROM defaults. If AUTOC value has not
446 * been stored, use the current register values.
448 if (hw->mac.orig_link_settings_stored)
449 autoc = hw->mac.orig_autoc;
451 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
453 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
454 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
455 *speed = IXGBE_LINK_SPEED_1GB_FULL;
459 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
460 *speed = IXGBE_LINK_SPEED_10GB_FULL;
464 case IXGBE_AUTOC_LMS_1G_AN:
465 *speed = IXGBE_LINK_SPEED_1GB_FULL;
469 case IXGBE_AUTOC_LMS_10G_SERIAL:
470 *speed = IXGBE_LINK_SPEED_10GB_FULL;
474 case IXGBE_AUTOC_LMS_KX4_KX_KR:
475 case IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN:
476 *speed = IXGBE_LINK_SPEED_UNKNOWN;
477 if (autoc & IXGBE_AUTOC_KR_SUPP)
478 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
479 if (autoc & IXGBE_AUTOC_KX4_SUPP)
480 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
481 if (autoc & IXGBE_AUTOC_KX_SUPP)
482 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
486 case IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII:
487 *speed = IXGBE_LINK_SPEED_100_FULL;
488 if (autoc & IXGBE_AUTOC_KR_SUPP)
489 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
490 if (autoc & IXGBE_AUTOC_KX4_SUPP)
491 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
492 if (autoc & IXGBE_AUTOC_KX_SUPP)
493 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
497 case IXGBE_AUTOC_LMS_SGMII_1G_100M:
498 *speed = IXGBE_LINK_SPEED_1GB_FULL | IXGBE_LINK_SPEED_100_FULL;
503 status = IXGBE_ERR_LINK_SETUP;
508 if (hw->phy.multispeed_fiber) {
509 *speed |= IXGBE_LINK_SPEED_10GB_FULL |
510 IXGBE_LINK_SPEED_1GB_FULL;
512 /* QSFP must not enable full auto-negotiation
513 * Limited autoneg is enabled at 1G
515 if (hw->phy.media_type == ixgbe_media_type_fiber_qsfp)
526 * ixgbe_get_media_type_82599 - Get media type
527 * @hw: pointer to hardware structure
529 * Returns the media type (fiber, copper, backplane)
531 enum ixgbe_media_type ixgbe_get_media_type_82599(struct ixgbe_hw *hw)
533 enum ixgbe_media_type media_type;
535 DEBUGFUNC("ixgbe_get_media_type_82599");
537 /* Detect if there is a copper PHY attached. */
538 switch (hw->phy.type) {
539 case ixgbe_phy_cu_unknown:
541 media_type = ixgbe_media_type_copper;
547 switch (hw->device_id) {
548 case IXGBE_DEV_ID_82599_KX4:
549 case IXGBE_DEV_ID_82599_KX4_MEZZ:
550 case IXGBE_DEV_ID_82599_COMBO_BACKPLANE:
551 case IXGBE_DEV_ID_82599_KR:
552 case IXGBE_DEV_ID_82599_BACKPLANE_FCOE:
553 case IXGBE_DEV_ID_82599_XAUI_LOM:
554 /* Default device ID is mezzanine card KX/KX4 */
555 media_type = ixgbe_media_type_backplane;
557 case IXGBE_DEV_ID_82599_SFP:
558 case IXGBE_DEV_ID_82599_SFP_FCOE:
559 case IXGBE_DEV_ID_82599_SFP_EM:
560 case IXGBE_DEV_ID_82599_SFP_SF2:
561 case IXGBE_DEV_ID_82599_SFP_SF_QP:
562 case IXGBE_DEV_ID_82599EN_SFP:
563 media_type = ixgbe_media_type_fiber;
565 case IXGBE_DEV_ID_82599_CX4:
566 media_type = ixgbe_media_type_cx4;
568 case IXGBE_DEV_ID_82599_T3_LOM:
569 media_type = ixgbe_media_type_copper;
571 case IXGBE_DEV_ID_82599_QSFP_SF_QP:
572 media_type = ixgbe_media_type_fiber_qsfp;
574 case IXGBE_DEV_ID_82599_BYPASS:
575 media_type = ixgbe_media_type_fiber_fixed;
576 hw->phy.multispeed_fiber = true;
579 media_type = ixgbe_media_type_unknown;
587 * ixgbe_stop_mac_link_on_d3_82599 - Disables link on D3
588 * @hw: pointer to hardware structure
590 * Disables link during D3 power down sequence.
593 void ixgbe_stop_mac_link_on_d3_82599(struct ixgbe_hw *hw)
598 DEBUGFUNC("ixgbe_stop_mac_link_on_d3_82599");
599 ixgbe_read_eeprom(hw, IXGBE_EEPROM_CTRL_2, &ee_ctrl_2);
601 if (!ixgbe_mng_present(hw) && !hw->wol_enabled &&
602 ee_ctrl_2 & IXGBE_EEPROM_CCD_BIT) {
603 autoc2_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
604 autoc2_reg |= IXGBE_AUTOC2_LINK_DISABLE_ON_D3_MASK;
605 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2_reg);
610 * ixgbe_start_mac_link_82599 - Setup MAC link settings
611 * @hw: pointer to hardware structure
612 * @autoneg_wait_to_complete: true when waiting for completion is needed
614 * Configures link settings based on values in the ixgbe_hw struct.
615 * Restarts the link. Performs autonegotiation if needed.
617 s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw,
618 bool autoneg_wait_to_complete)
623 s32 status = IXGBE_SUCCESS;
624 bool got_lock = false;
626 DEBUGFUNC("ixgbe_start_mac_link_82599");
629 /* reset_pipeline requires us to hold this lock as it writes to
632 if (ixgbe_verify_lesm_fw_enabled_82599(hw)) {
633 status = hw->mac.ops.acquire_swfw_sync(hw,
634 IXGBE_GSSR_MAC_CSR_SM);
635 if (status != IXGBE_SUCCESS)
642 ixgbe_reset_pipeline_82599(hw);
645 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
647 /* Only poll for autoneg to complete if specified to do so */
648 if (autoneg_wait_to_complete) {
649 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
650 if ((autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
651 IXGBE_AUTOC_LMS_KX4_KX_KR ||
652 (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
653 IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
654 (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
655 IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
656 links_reg = 0; /* Just in case Autoneg time = 0 */
657 for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
658 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
659 if (links_reg & IXGBE_LINKS_KX_AN_COMP)
663 if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
664 status = IXGBE_ERR_AUTONEG_NOT_COMPLETE;
665 DEBUGOUT("Autoneg did not complete.\n");
670 /* Add delay to filter out noises during initial link setup */
678 * ixgbe_disable_tx_laser_multispeed_fiber - Disable Tx laser
679 * @hw: pointer to hardware structure
681 * The base drivers may require better control over SFP+ module
682 * PHY states. This includes selectively shutting down the Tx
683 * laser on the PHY, effectively halting physical link.
685 void ixgbe_disable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
687 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
689 /* Blocked by MNG FW so bail */
690 if (ixgbe_check_reset_blocked(hw))
693 /* Disable Tx laser; allow 100us to go dark per spec */
694 esdp_reg |= IXGBE_ESDP_SDP3;
695 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
696 IXGBE_WRITE_FLUSH(hw);
701 * ixgbe_enable_tx_laser_multispeed_fiber - Enable Tx laser
702 * @hw: pointer to hardware structure
704 * The base drivers may require better control over SFP+ module
705 * PHY states. This includes selectively turning on the Tx
706 * laser on the PHY, effectively starting physical link.
708 void ixgbe_enable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
710 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
712 /* Enable Tx laser; allow 100ms to light up */
713 esdp_reg &= ~IXGBE_ESDP_SDP3;
714 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
715 IXGBE_WRITE_FLUSH(hw);
720 * ixgbe_flap_tx_laser_multispeed_fiber - Flap Tx laser
721 * @hw: pointer to hardware structure
723 * When the driver changes the link speeds that it can support,
724 * it sets autotry_restart to true to indicate that we need to
725 * initiate a new autotry session with the link partner. To do
726 * so, we set the speed then disable and re-enable the Tx laser, to
727 * alert the link partner that it also needs to restart autotry on its
728 * end. This is consistent with true clause 37 autoneg, which also
729 * involves a loss of signal.
731 void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
733 DEBUGFUNC("ixgbe_flap_tx_laser_multispeed_fiber");
735 /* Blocked by MNG FW so bail */
736 if (ixgbe_check_reset_blocked(hw))
739 if (hw->mac.autotry_restart) {
740 ixgbe_disable_tx_laser_multispeed_fiber(hw);
741 ixgbe_enable_tx_laser_multispeed_fiber(hw);
742 hw->mac.autotry_restart = false;
747 * ixgbe_set_hard_rate_select_speed - Set module link speed
748 * @hw: pointer to hardware structure
749 * @speed: link speed to set
751 * Set module link speed via RS0/RS1 rate select pins.
753 void ixgbe_set_hard_rate_select_speed(struct ixgbe_hw *hw,
754 ixgbe_link_speed speed)
756 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
759 case IXGBE_LINK_SPEED_10GB_FULL:
760 esdp_reg |= (IXGBE_ESDP_SDP5_DIR | IXGBE_ESDP_SDP5);
762 case IXGBE_LINK_SPEED_1GB_FULL:
763 esdp_reg &= ~IXGBE_ESDP_SDP5;
764 esdp_reg |= IXGBE_ESDP_SDP5_DIR;
767 DEBUGOUT("Invalid fixed module speed\n");
771 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
772 IXGBE_WRITE_FLUSH(hw);
776 * ixgbe_setup_mac_link_smartspeed - Set MAC link speed using SmartSpeed
777 * @hw: pointer to hardware structure
778 * @speed: new link speed
779 * @autoneg_wait_to_complete: true when waiting for completion is needed
781 * Implements the Intel SmartSpeed algorithm.
783 s32 ixgbe_setup_mac_link_smartspeed(struct ixgbe_hw *hw,
784 ixgbe_link_speed speed,
785 bool autoneg_wait_to_complete)
787 s32 status = IXGBE_SUCCESS;
788 ixgbe_link_speed link_speed = IXGBE_LINK_SPEED_UNKNOWN;
790 bool link_up = false;
791 u32 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
793 DEBUGFUNC("ixgbe_setup_mac_link_smartspeed");
795 /* Set autoneg_advertised value based on input link speed */
796 hw->phy.autoneg_advertised = 0;
798 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
799 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_10GB_FULL;
801 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
802 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_1GB_FULL;
804 if (speed & IXGBE_LINK_SPEED_100_FULL)
805 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_100_FULL;
808 * Implement Intel SmartSpeed algorithm. SmartSpeed will reduce the
809 * autoneg advertisement if link is unable to be established at the
810 * highest negotiated rate. This can sometimes happen due to integrity
811 * issues with the physical media connection.
814 /* First, try to get link with full advertisement */
815 hw->phy.smart_speed_active = false;
816 for (j = 0; j < IXGBE_SMARTSPEED_MAX_RETRIES; j++) {
817 status = ixgbe_setup_mac_link_82599(hw, speed,
818 autoneg_wait_to_complete);
819 if (status != IXGBE_SUCCESS)
823 * Wait for the controller to acquire link. Per IEEE 802.3ap,
824 * Section 73.10.2, we may have to wait up to 500ms if KR is
825 * attempted, or 200ms if KX/KX4/BX/BX4 is attempted, per
826 * Table 9 in the AN MAS.
828 for (i = 0; i < 5; i++) {
831 /* If we have link, just jump out */
832 status = ixgbe_check_link(hw, &link_speed, &link_up,
834 if (status != IXGBE_SUCCESS)
843 * We didn't get link. If we advertised KR plus one of KX4/KX
844 * (or BX4/BX), then disable KR and try again.
846 if (((autoc_reg & IXGBE_AUTOC_KR_SUPP) == 0) ||
847 ((autoc_reg & IXGBE_AUTOC_KX4_KX_SUPP_MASK) == 0))
850 /* Turn SmartSpeed on to disable KR support */
851 hw->phy.smart_speed_active = true;
852 status = ixgbe_setup_mac_link_82599(hw, speed,
853 autoneg_wait_to_complete);
854 if (status != IXGBE_SUCCESS)
858 * Wait for the controller to acquire link. 600ms will allow for
859 * the AN link_fail_inhibit_timer as well for multiple cycles of
860 * parallel detect, both 10g and 1g. This allows for the maximum
861 * connect attempts as defined in the AN MAS table 73-7.
863 for (i = 0; i < 6; i++) {
866 /* If we have link, just jump out */
867 status = ixgbe_check_link(hw, &link_speed, &link_up, false);
868 if (status != IXGBE_SUCCESS)
875 /* We didn't get link. Turn SmartSpeed back off. */
876 hw->phy.smart_speed_active = false;
877 status = ixgbe_setup_mac_link_82599(hw, speed,
878 autoneg_wait_to_complete);
881 if (link_up && (link_speed == IXGBE_LINK_SPEED_1GB_FULL))
882 DEBUGOUT("Smartspeed has downgraded the link speed "
883 "from the maximum advertised\n");
888 * ixgbe_setup_mac_link_82599 - Set MAC link speed
889 * @hw: pointer to hardware structure
890 * @speed: new link speed
891 * @autoneg_wait_to_complete: true when waiting for completion is needed
893 * Set the link speed in the AUTOC register and restarts link.
895 s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw,
896 ixgbe_link_speed speed,
897 bool autoneg_wait_to_complete)
899 bool autoneg = false;
900 s32 status = IXGBE_SUCCESS;
901 u32 pma_pmd_1g, link_mode;
902 u32 current_autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC); /* holds the value of AUTOC register at this current point in time */
903 u32 orig_autoc = 0; /* holds the cached value of AUTOC register */
904 u32 autoc = current_autoc; /* Temporary variable used for comparison purposes */
905 u32 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
906 u32 pma_pmd_10g_serial = autoc2 & IXGBE_AUTOC2_10G_SERIAL_PMA_PMD_MASK;
909 ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN;
911 DEBUGFUNC("ixgbe_setup_mac_link_82599");
913 /* Check to see if speed passed in is supported. */
914 status = ixgbe_get_link_capabilities(hw, &link_capabilities, &autoneg);
918 speed &= link_capabilities;
920 if (speed == IXGBE_LINK_SPEED_UNKNOWN) {
921 status = IXGBE_ERR_LINK_SETUP;
925 /* Use stored value (EEPROM defaults) of AUTOC to find KR/KX4 support*/
926 if (hw->mac.orig_link_settings_stored)
927 orig_autoc = hw->mac.orig_autoc;
931 link_mode = autoc & IXGBE_AUTOC_LMS_MASK;
932 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;
934 if (link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR ||
935 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
936 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
937 /* Set KX4/KX/KR support according to speed requested */
938 autoc &= ~(IXGBE_AUTOC_KX4_KX_SUPP_MASK | IXGBE_AUTOC_KR_SUPP);
939 if (speed & IXGBE_LINK_SPEED_10GB_FULL) {
940 if (orig_autoc & IXGBE_AUTOC_KX4_SUPP)
941 autoc |= IXGBE_AUTOC_KX4_SUPP;
942 if ((orig_autoc & IXGBE_AUTOC_KR_SUPP) &&
943 (hw->phy.smart_speed_active == false))
944 autoc |= IXGBE_AUTOC_KR_SUPP;
946 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
947 autoc |= IXGBE_AUTOC_KX_SUPP;
948 } else if ((pma_pmd_1g == IXGBE_AUTOC_1G_SFI) &&
949 (link_mode == IXGBE_AUTOC_LMS_1G_LINK_NO_AN ||
950 link_mode == IXGBE_AUTOC_LMS_1G_AN)) {
951 /* Switch from 1G SFI to 10G SFI if requested */
952 if ((speed == IXGBE_LINK_SPEED_10GB_FULL) &&
953 (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI)) {
954 autoc &= ~IXGBE_AUTOC_LMS_MASK;
955 autoc |= IXGBE_AUTOC_LMS_10G_SERIAL;
957 } else if ((pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI) &&
958 (link_mode == IXGBE_AUTOC_LMS_10G_SERIAL)) {
959 /* Switch from 10G SFI to 1G SFI if requested */
960 if ((speed == IXGBE_LINK_SPEED_1GB_FULL) &&
961 (pma_pmd_1g == IXGBE_AUTOC_1G_SFI)) {
962 autoc &= ~IXGBE_AUTOC_LMS_MASK;
963 if (autoneg || hw->phy.type == ixgbe_phy_qsfp_intel)
964 autoc |= IXGBE_AUTOC_LMS_1G_AN;
966 autoc |= IXGBE_AUTOC_LMS_1G_LINK_NO_AN;
970 if (autoc != current_autoc) {
972 status = hw->mac.ops.prot_autoc_write(hw, autoc, false);
973 if (status != IXGBE_SUCCESS)
976 /* Only poll for autoneg to complete if specified to do so */
977 if (autoneg_wait_to_complete) {
978 if (link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR ||
979 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
980 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
981 links_reg = 0; /*Just in case Autoneg time=0*/
982 for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
984 IXGBE_READ_REG(hw, IXGBE_LINKS);
985 if (links_reg & IXGBE_LINKS_KX_AN_COMP)
989 if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
991 IXGBE_ERR_AUTONEG_NOT_COMPLETE;
992 DEBUGOUT("Autoneg did not complete.\n");
997 /* Add delay to filter out noises during initial link setup */
1006 * ixgbe_setup_copper_link_82599 - Set the PHY autoneg advertised field
1007 * @hw: pointer to hardware structure
1008 * @speed: new link speed
1009 * @autoneg_wait_to_complete: true if waiting is needed to complete
1011 * Restarts link on PHY and MAC based on settings passed in.
1013 static s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw,
1014 ixgbe_link_speed speed,
1015 bool autoneg_wait_to_complete)
1019 DEBUGFUNC("ixgbe_setup_copper_link_82599");
1021 /* Setup the PHY according to input speed */
1022 status = hw->phy.ops.setup_link_speed(hw, speed,
1023 autoneg_wait_to_complete);
1025 ixgbe_start_mac_link_82599(hw, autoneg_wait_to_complete);
1031 * ixgbe_reset_hw_82599 - Perform hardware reset
1032 * @hw: pointer to hardware structure
1034 * Resets the hardware by resetting the transmit and receive units, masks
1035 * and clears all interrupts, perform a PHY reset, and perform a link (MAC)
1038 s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw)
1040 ixgbe_link_speed link_speed;
1043 u32 i, autoc, autoc2;
1045 bool link_up = false;
1047 DEBUGFUNC("ixgbe_reset_hw_82599");
1049 /* Call adapter stop to disable tx/rx and clear interrupts */
1050 status = hw->mac.ops.stop_adapter(hw);
1051 if (status != IXGBE_SUCCESS)
1054 /* flush pending Tx transactions */
1055 ixgbe_clear_tx_pending(hw);
1057 /* PHY ops must be identified and initialized prior to reset */
1059 /* Identify PHY and related function pointers */
1060 status = hw->phy.ops.init(hw);
1062 if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
1065 /* Setup SFP module if there is one present. */
1066 if (hw->phy.sfp_setup_needed) {
1067 status = hw->mac.ops.setup_sfp(hw);
1068 hw->phy.sfp_setup_needed = false;
1071 if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
1075 if (hw->phy.reset_disable == false && hw->phy.ops.reset != NULL)
1076 hw->phy.ops.reset(hw);
1078 /* remember AUTOC from before we reset */
1079 curr_lms = IXGBE_READ_REG(hw, IXGBE_AUTOC) & IXGBE_AUTOC_LMS_MASK;
1083 * Issue global reset to the MAC. Needs to be SW reset if link is up.
1084 * If link reset is used when link is up, it might reset the PHY when
1085 * mng is using it. If link is down or the flag to force full link
1086 * reset is set, then perform link reset.
1088 ctrl = IXGBE_CTRL_LNK_RST;
1089 if (!hw->force_full_reset) {
1090 hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
1092 ctrl = IXGBE_CTRL_RST;
1095 ctrl |= IXGBE_READ_REG(hw, IXGBE_CTRL);
1096 IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
1097 IXGBE_WRITE_FLUSH(hw);
1099 /* Poll for reset bit to self-clear meaning reset is complete */
1100 for (i = 0; i < 10; i++) {
1102 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
1103 if (!(ctrl & IXGBE_CTRL_RST_MASK))
1107 if (ctrl & IXGBE_CTRL_RST_MASK) {
1108 status = IXGBE_ERR_RESET_FAILED;
1109 DEBUGOUT("Reset polling failed to complete.\n");
1115 * Double resets are required for recovery from certain error
1116 * conditions. Between resets, it is necessary to stall to
1117 * allow time for any pending HW events to complete.
1119 if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
1120 hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
1125 * Store the original AUTOC/AUTOC2 values if they have not been
1126 * stored off yet. Otherwise restore the stored original
1127 * values since the reset operation sets back to defaults.
1129 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
1130 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
1132 /* Enable link if disabled in NVM */
1133 if (autoc2 & IXGBE_AUTOC2_LINK_DISABLE_MASK) {
1134 autoc2 &= ~IXGBE_AUTOC2_LINK_DISABLE_MASK;
1135 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2);
1136 IXGBE_WRITE_FLUSH(hw);
1139 if (hw->mac.orig_link_settings_stored == false) {
1140 hw->mac.orig_autoc = autoc;
1141 hw->mac.orig_autoc2 = autoc2;
1142 hw->mac.orig_link_settings_stored = true;
1145 /* If MNG FW is running on a multi-speed device that
1146 * doesn't autoneg with out driver support we need to
1147 * leave LMS in the state it was before we MAC reset.
1148 * Likewise if we support WoL we don't want change the
1151 if ((hw->phy.multispeed_fiber && ixgbe_mng_enabled(hw)) ||
1153 hw->mac.orig_autoc =
1154 (hw->mac.orig_autoc & ~IXGBE_AUTOC_LMS_MASK) |
1157 if (autoc != hw->mac.orig_autoc) {
1158 status = hw->mac.ops.prot_autoc_write(hw,
1161 if (status != IXGBE_SUCCESS)
1165 if ((autoc2 & IXGBE_AUTOC2_UPPER_MASK) !=
1166 (hw->mac.orig_autoc2 & IXGBE_AUTOC2_UPPER_MASK)) {
1167 autoc2 &= ~IXGBE_AUTOC2_UPPER_MASK;
1168 autoc2 |= (hw->mac.orig_autoc2 &
1169 IXGBE_AUTOC2_UPPER_MASK);
1170 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2);
1174 /* Store the permanent mac address */
1175 hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
1178 * Store MAC address from RAR0, clear receive address registers, and
1179 * clear the multicast table. Also reset num_rar_entries to 128,
1180 * since we modify this value when programming the SAN MAC address.
1182 hw->mac.num_rar_entries = 128;
1183 hw->mac.ops.init_rx_addrs(hw);
1185 /* Store the permanent SAN mac address */
1186 hw->mac.ops.get_san_mac_addr(hw, hw->mac.san_addr);
1188 /* Add the SAN MAC address to the RAR only if it's a valid address */
1189 if (ixgbe_validate_mac_addr(hw->mac.san_addr) == 0) {
1190 /* Save the SAN MAC RAR index */
1191 hw->mac.san_mac_rar_index = hw->mac.num_rar_entries - 1;
1193 hw->mac.ops.set_rar(hw, hw->mac.san_mac_rar_index,
1194 hw->mac.san_addr, 0, IXGBE_RAH_AV);
1196 /* clear VMDq pool/queue selection for this RAR */
1197 hw->mac.ops.clear_vmdq(hw, hw->mac.san_mac_rar_index,
1198 IXGBE_CLEAR_VMDQ_ALL);
1200 /* Reserve the last RAR for the SAN MAC address */
1201 hw->mac.num_rar_entries--;
1204 /* Store the alternative WWNN/WWPN prefix */
1205 hw->mac.ops.get_wwn_prefix(hw, &hw->mac.wwnn_prefix,
1206 &hw->mac.wwpn_prefix);
1213 * ixgbe_fdir_check_cmd_complete - poll to check whether FDIRCMD is complete
1214 * @hw: pointer to hardware structure
1215 * @fdircmd: current value of FDIRCMD register
1217 static s32 ixgbe_fdir_check_cmd_complete(struct ixgbe_hw *hw, u32 *fdircmd)
1221 for (i = 0; i < IXGBE_FDIRCMD_CMD_POLL; i++) {
1222 *fdircmd = IXGBE_READ_REG(hw, IXGBE_FDIRCMD);
1223 if (!(*fdircmd & IXGBE_FDIRCMD_CMD_MASK))
1224 return IXGBE_SUCCESS;
1228 return IXGBE_ERR_FDIR_CMD_INCOMPLETE;
1232 * ixgbe_reinit_fdir_tables_82599 - Reinitialize Flow Director tables.
1233 * @hw: pointer to hardware structure
1235 s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw)
1239 u32 fdirctrl = IXGBE_READ_REG(hw, IXGBE_FDIRCTRL);
1241 fdirctrl &= ~IXGBE_FDIRCTRL_INIT_DONE;
1243 DEBUGFUNC("ixgbe_reinit_fdir_tables_82599");
1246 * Before starting reinitialization process,
1247 * FDIRCMD.CMD must be zero.
1249 err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
1251 DEBUGOUT("Flow Director previous command did not complete, aborting table re-initialization.\n");
1255 IXGBE_WRITE_REG(hw, IXGBE_FDIRFREE, 0);
1256 IXGBE_WRITE_FLUSH(hw);
1258 * 82599 adapters flow director init flow cannot be restarted,
1259 * Workaround 82599 silicon errata by performing the following steps
1260 * before re-writing the FDIRCTRL control register with the same value.
1261 * - write 1 to bit 8 of FDIRCMD register &
1262 * - write 0 to bit 8 of FDIRCMD register
1264 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1265 (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) |
1266 IXGBE_FDIRCMD_CLEARHT));
1267 IXGBE_WRITE_FLUSH(hw);
1268 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1269 (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) &
1270 ~IXGBE_FDIRCMD_CLEARHT));
1271 IXGBE_WRITE_FLUSH(hw);
1273 * Clear FDIR Hash register to clear any leftover hashes
1274 * waiting to be programmed.
1276 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, 0x00);
1277 IXGBE_WRITE_FLUSH(hw);
1279 IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
1280 IXGBE_WRITE_FLUSH(hw);
1282 /* Poll init-done after we write FDIRCTRL register */
1283 for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
1284 if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) &
1285 IXGBE_FDIRCTRL_INIT_DONE)
1289 if (i >= IXGBE_FDIR_INIT_DONE_POLL) {
1290 DEBUGOUT("Flow Director Signature poll time exceeded!\n");
1291 return IXGBE_ERR_FDIR_REINIT_FAILED;
1294 /* Clear FDIR statistics registers (read to clear) */
1295 IXGBE_READ_REG(hw, IXGBE_FDIRUSTAT);
1296 IXGBE_READ_REG(hw, IXGBE_FDIRFSTAT);
1297 IXGBE_READ_REG(hw, IXGBE_FDIRMATCH);
1298 IXGBE_READ_REG(hw, IXGBE_FDIRMISS);
1299 IXGBE_READ_REG(hw, IXGBE_FDIRLEN);
1301 return IXGBE_SUCCESS;
1305 * ixgbe_fdir_enable_82599 - Initialize Flow Director control registers
1306 * @hw: pointer to hardware structure
1307 * @fdirctrl: value to write to flow director control register
1309 static void ixgbe_fdir_enable_82599(struct ixgbe_hw *hw, u32 fdirctrl)
1313 DEBUGFUNC("ixgbe_fdir_enable_82599");
1315 /* Prime the keys for hashing */
1316 IXGBE_WRITE_REG(hw, IXGBE_FDIRHKEY, IXGBE_ATR_BUCKET_HASH_KEY);
1317 IXGBE_WRITE_REG(hw, IXGBE_FDIRSKEY, IXGBE_ATR_SIGNATURE_HASH_KEY);
1320 * Poll init-done after we write the register. Estimated times:
1321 * 10G: PBALLOC = 11b, timing is 60us
1322 * 1G: PBALLOC = 11b, timing is 600us
1323 * 100M: PBALLOC = 11b, timing is 6ms
1325 * Multiple these timings by 4 if under full Rx load
1327 * So we'll poll for IXGBE_FDIR_INIT_DONE_POLL times, sleeping for
1328 * 1 msec per poll time. If we're at line rate and drop to 100M, then
1329 * this might not finish in our poll time, but we can live with that
1332 IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
1333 IXGBE_WRITE_FLUSH(hw);
1334 for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
1335 if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) &
1336 IXGBE_FDIRCTRL_INIT_DONE)
1341 if (i >= IXGBE_FDIR_INIT_DONE_POLL)
1342 DEBUGOUT("Flow Director poll time exceeded!\n");
1346 * ixgbe_init_fdir_signature_82599 - Initialize Flow Director signature filters
1347 * @hw: pointer to hardware structure
1348 * @fdirctrl: value to write to flow director control register, initially
1349 * contains just the value of the Rx packet buffer allocation
1351 s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 fdirctrl)
1353 DEBUGFUNC("ixgbe_init_fdir_signature_82599");
1356 * Continue setup of fdirctrl register bits:
1357 * Move the flexible bytes to use the ethertype - shift 6 words
1358 * Set the maximum length per hash bucket to 0xA filters
1359 * Send interrupt when 64 filters are left
1361 fdirctrl |= (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT) |
1362 (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT) |
1363 (4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT);
1365 /* write hashes and fdirctrl register, poll for completion */
1366 ixgbe_fdir_enable_82599(hw, fdirctrl);
1368 return IXGBE_SUCCESS;
1372 * ixgbe_init_fdir_perfect_82599 - Initialize Flow Director perfect filters
1373 * @hw: pointer to hardware structure
1374 * @fdirctrl: value to write to flow director control register, initially
1375 * contains just the value of the Rx packet buffer allocation
1376 * @cloud_mode: true - cloud mode, false - other mode
1378 s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 fdirctrl,
1381 UNREFERENCED_1PARAMETER(cloud_mode);
1382 DEBUGFUNC("ixgbe_init_fdir_perfect_82599");
1385 * Continue setup of fdirctrl register bits:
1386 * Turn perfect match filtering on
1387 * Report hash in RSS field of Rx wb descriptor
1388 * Initialize the drop queue to queue 127
1389 * Move the flexible bytes to use the ethertype - shift 6 words
1390 * Set the maximum length per hash bucket to 0xA filters
1391 * Send interrupt when 64 (0x4 * 16) filters are left
1393 fdirctrl |= IXGBE_FDIRCTRL_PERFECT_MATCH |
1394 IXGBE_FDIRCTRL_REPORT_STATUS |
1395 (IXGBE_FDIR_DROP_QUEUE << IXGBE_FDIRCTRL_DROP_Q_SHIFT) |
1396 (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT) |
1397 (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT) |
1398 (4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT);
1401 fdirctrl |=(IXGBE_FDIRCTRL_FILTERMODE_CLOUD <<
1402 IXGBE_FDIRCTRL_FILTERMODE_SHIFT);
1404 /* write hashes and fdirctrl register, poll for completion */
1405 ixgbe_fdir_enable_82599(hw, fdirctrl);
1407 return IXGBE_SUCCESS;
1411 * ixgbe_set_fdir_drop_queue_82599 - Set Flow Director drop queue
1412 * @hw: pointer to hardware structure
1413 * @dropqueue: Rx queue index used for the dropped packets
1415 void ixgbe_set_fdir_drop_queue_82599(struct ixgbe_hw *hw, u8 dropqueue)
1419 DEBUGFUNC("ixgbe_set_fdir_drop_queue_82599");
1420 /* Clear init done bit and drop queue field */
1421 fdirctrl = IXGBE_READ_REG(hw, IXGBE_FDIRCTRL);
1422 fdirctrl &= ~(IXGBE_FDIRCTRL_DROP_Q_MASK | IXGBE_FDIRCTRL_INIT_DONE);
1424 /* Set drop queue */
1425 fdirctrl |= (dropqueue << IXGBE_FDIRCTRL_DROP_Q_SHIFT);
1426 if ((hw->mac.type == ixgbe_mac_X550) ||
1427 (hw->mac.type == ixgbe_mac_X550EM_x) ||
1428 (hw->mac.type == ixgbe_mac_X550EM_a))
1429 fdirctrl |= IXGBE_FDIRCTRL_DROP_NO_MATCH;
1431 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1432 (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) |
1433 IXGBE_FDIRCMD_CLEARHT));
1434 IXGBE_WRITE_FLUSH(hw);
1435 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1436 (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) &
1437 ~IXGBE_FDIRCMD_CLEARHT));
1438 IXGBE_WRITE_FLUSH(hw);
1440 /* write hashes and fdirctrl register, poll for completion */
1441 ixgbe_fdir_enable_82599(hw, fdirctrl);
1445 * These defines allow us to quickly generate all of the necessary instructions
1446 * in the function below by simply calling out IXGBE_COMPUTE_SIG_HASH_ITERATION
1447 * for values 0 through 15
1449 #define IXGBE_ATR_COMMON_HASH_KEY \
1450 (IXGBE_ATR_BUCKET_HASH_KEY & IXGBE_ATR_SIGNATURE_HASH_KEY)
1451 #define IXGBE_COMPUTE_SIG_HASH_ITERATION(_n) \
1454 if (IXGBE_ATR_COMMON_HASH_KEY & (0x01 << n)) \
1455 common_hash ^= lo_hash_dword >> n; \
1456 else if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << n)) \
1457 bucket_hash ^= lo_hash_dword >> n; \
1458 else if (IXGBE_ATR_SIGNATURE_HASH_KEY & (0x01 << n)) \
1459 sig_hash ^= lo_hash_dword << (16 - n); \
1460 if (IXGBE_ATR_COMMON_HASH_KEY & (0x01 << (n + 16))) \
1461 common_hash ^= hi_hash_dword >> n; \
1462 else if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << (n + 16))) \
1463 bucket_hash ^= hi_hash_dword >> n; \
1464 else if (IXGBE_ATR_SIGNATURE_HASH_KEY & (0x01 << (n + 16))) \
1465 sig_hash ^= hi_hash_dword << (16 - n); \
1469 * ixgbe_atr_compute_sig_hash_82599 - Compute the signature hash
1470 * @input: input bitstream to compute the hash on
1471 * @common: compressed common input dword
1473 * This function is almost identical to the function above but contains
1474 * several optimizations such as unwinding all of the loops, letting the
1475 * compiler work out all of the conditional ifs since the keys are static
1476 * defines, and computing two keys at once since the hashed dword stream
1477 * will be the same for both keys.
1479 u32 ixgbe_atr_compute_sig_hash_82599(union ixgbe_atr_hash_dword input,
1480 union ixgbe_atr_hash_dword common)
1482 u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
1483 u32 sig_hash = 0, bucket_hash = 0, common_hash = 0;
1485 /* record the flow_vm_vlan bits as they are a key part to the hash */
1486 flow_vm_vlan = IXGBE_NTOHL(input.dword);
1488 /* generate common hash dword */
1489 hi_hash_dword = IXGBE_NTOHL(common.dword);
1491 /* low dword is word swapped version of common */
1492 lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
1494 /* apply flow ID/VM pool/VLAN ID bits to hash words */
1495 hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);
1497 /* Process bits 0 and 16 */
1498 IXGBE_COMPUTE_SIG_HASH_ITERATION(0);
1501 * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
1502 * delay this because bit 0 of the stream should not be processed
1503 * so we do not add the VLAN until after bit 0 was processed
1505 lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);
1507 /* Process remaining 30 bit of the key */
1508 IXGBE_COMPUTE_SIG_HASH_ITERATION(1);
1509 IXGBE_COMPUTE_SIG_HASH_ITERATION(2);
1510 IXGBE_COMPUTE_SIG_HASH_ITERATION(3);
1511 IXGBE_COMPUTE_SIG_HASH_ITERATION(4);
1512 IXGBE_COMPUTE_SIG_HASH_ITERATION(5);
1513 IXGBE_COMPUTE_SIG_HASH_ITERATION(6);
1514 IXGBE_COMPUTE_SIG_HASH_ITERATION(7);
1515 IXGBE_COMPUTE_SIG_HASH_ITERATION(8);
1516 IXGBE_COMPUTE_SIG_HASH_ITERATION(9);
1517 IXGBE_COMPUTE_SIG_HASH_ITERATION(10);
1518 IXGBE_COMPUTE_SIG_HASH_ITERATION(11);
1519 IXGBE_COMPUTE_SIG_HASH_ITERATION(12);
1520 IXGBE_COMPUTE_SIG_HASH_ITERATION(13);
1521 IXGBE_COMPUTE_SIG_HASH_ITERATION(14);
1522 IXGBE_COMPUTE_SIG_HASH_ITERATION(15);
1524 /* combine common_hash result with signature and bucket hashes */
1525 bucket_hash ^= common_hash;
1526 bucket_hash &= IXGBE_ATR_HASH_MASK;
1528 sig_hash ^= common_hash << 16;
1529 sig_hash &= IXGBE_ATR_HASH_MASK << 16;
1531 /* return completed signature hash */
1532 return sig_hash ^ bucket_hash;
1536 * ixgbe_atr_add_signature_filter_82599 - Adds a signature hash filter
1537 * @hw: pointer to hardware structure
1538 * @input: unique input dword
1539 * @common: compressed common input dword
1540 * @queue: queue index to direct traffic to
1542 * Note that the tunnel bit in input must not be set when the hardware
1543 * tunneling support does not exist.
1545 void ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
1546 union ixgbe_atr_hash_dword input,
1547 union ixgbe_atr_hash_dword common,
1555 DEBUGFUNC("ixgbe_fdir_add_signature_filter_82599");
1558 * Get the flow_type in order to program FDIRCMD properly
1559 * lowest 2 bits are FDIRCMD.L4TYPE, third lowest bit is FDIRCMD.IPV6
1560 * fifth is FDIRCMD.TUNNEL_FILTER
1562 tunnel = !!(input.formatted.flow_type & IXGBE_ATR_L4TYPE_TUNNEL_MASK);
1563 flow_type = input.formatted.flow_type &
1564 (IXGBE_ATR_L4TYPE_TUNNEL_MASK - 1);
1565 switch (flow_type) {
1566 case IXGBE_ATR_FLOW_TYPE_TCPV4:
1567 case IXGBE_ATR_FLOW_TYPE_UDPV4:
1568 case IXGBE_ATR_FLOW_TYPE_SCTPV4:
1569 case IXGBE_ATR_FLOW_TYPE_TCPV6:
1570 case IXGBE_ATR_FLOW_TYPE_UDPV6:
1571 case IXGBE_ATR_FLOW_TYPE_SCTPV6:
1574 DEBUGOUT(" Error on flow type input\n");
1578 /* configure FDIRCMD register */
1579 fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE |
1580 IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
1581 fdircmd |= (u32)flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
1582 fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
1584 fdircmd |= IXGBE_FDIRCMD_TUNNEL_FILTER;
1587 * The lower 32-bits of fdirhashcmd is for FDIRHASH, the upper 32-bits
1588 * is for FDIRCMD. Then do a 64-bit register write from FDIRHASH.
1590 fdirhashcmd = (u64)fdircmd << 32;
1591 fdirhashcmd |= (u64)ixgbe_atr_compute_sig_hash_82599(input, common);
1592 IXGBE_WRITE_REG64(hw, IXGBE_FDIRHASH, fdirhashcmd);
1594 DEBUGOUT2("Tx Queue=%x hash=%x\n", queue, (u32)fdirhashcmd);
1599 #define IXGBE_COMPUTE_BKT_HASH_ITERATION(_n) \
1602 if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << n)) \
1603 bucket_hash ^= lo_hash_dword >> n; \
1604 if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << (n + 16))) \
1605 bucket_hash ^= hi_hash_dword >> n; \
1609 * ixgbe_atr_compute_perfect_hash_82599 - Compute the perfect filter hash
1610 * @input: input bitstream to compute the hash on
1611 * @input_mask: mask for the input bitstream
1613 * This function serves two main purposes. First it applies the input_mask
1614 * to the atr_input resulting in a cleaned up atr_input data stream.
1615 * Secondly it computes the hash and stores it in the bkt_hash field at
1616 * the end of the input byte stream. This way it will be available for
1617 * future use without needing to recompute the hash.
1619 void ixgbe_atr_compute_perfect_hash_82599(union ixgbe_atr_input *input,
1620 union ixgbe_atr_input *input_mask)
1623 u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
1624 u32 bucket_hash = 0;
1628 /* Apply masks to input data */
1629 for (i = 0; i < 14; i++)
1630 input->dword_stream[i] &= input_mask->dword_stream[i];
1632 /* record the flow_vm_vlan bits as they are a key part to the hash */
1633 flow_vm_vlan = IXGBE_NTOHL(input->dword_stream[0]);
1635 /* generate common hash dword */
1636 for (i = 1; i <= 13; i++)
1637 hi_dword ^= input->dword_stream[i];
1638 hi_hash_dword = IXGBE_NTOHL(hi_dword);
1640 /* low dword is word swapped version of common */
1641 lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
1643 /* apply flow ID/VM pool/VLAN ID bits to hash words */
1644 hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);
1646 /* Process bits 0 and 16 */
1647 IXGBE_COMPUTE_BKT_HASH_ITERATION(0);
1650 * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
1651 * delay this because bit 0 of the stream should not be processed
1652 * so we do not add the VLAN until after bit 0 was processed
1654 lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);
1656 /* Process remaining 30 bit of the key */
1657 for (i = 1; i <= 15; i++)
1658 IXGBE_COMPUTE_BKT_HASH_ITERATION(i);
1661 * Limit hash to 13 bits since max bucket count is 8K.
1662 * Store result at the end of the input stream.
1664 input->formatted.bkt_hash = bucket_hash & 0x1FFF;
1668 * ixgbe_get_fdirtcpm_82599 - generate a TCP port from atr_input_masks
1669 * @input_mask: mask to be bit swapped
1671 * The source and destination port masks for flow director are bit swapped
1672 * in that bit 15 effects bit 0, 14 effects 1, 13, 2 etc. In order to
1673 * generate a correctly swapped value we need to bit swap the mask and that
1674 * is what is accomplished by this function.
1676 static u32 ixgbe_get_fdirtcpm_82599(union ixgbe_atr_input *input_mask)
1678 u32 mask = IXGBE_NTOHS(input_mask->formatted.dst_port);
1679 mask <<= IXGBE_FDIRTCPM_DPORTM_SHIFT;
1680 mask |= (u32)IXGBE_NTOHS(input_mask->formatted.src_port);
1681 mask = ((mask & 0x55555555) << 1) | ((mask & 0xAAAAAAAA) >> 1);
1682 mask = ((mask & 0x33333333) << 2) | ((mask & 0xCCCCCCCC) >> 2);
1683 mask = ((mask & 0x0F0F0F0F) << 4) | ((mask & 0xF0F0F0F0) >> 4);
1684 return ((mask & 0x00FF00FF) << 8) | ((mask & 0xFF00FF00) >> 8);
1688 * These two macros are meant to address the fact that we have registers
1689 * that are either all or in part big-endian. As a result on big-endian
1690 * systems we will end up byte swapping the value to little-endian before
1691 * it is byte swapped again and written to the hardware in the original
1692 * big-endian format.
1694 #define IXGBE_STORE_AS_BE32(_value) \
1695 (((u32)(_value) >> 24) | (((u32)(_value) & 0x00FF0000) >> 8) | \
1696 (((u32)(_value) & 0x0000FF00) << 8) | ((u32)(_value) << 24))
1698 #define IXGBE_WRITE_REG_BE32(a, reg, value) \
1699 IXGBE_WRITE_REG((a), (reg), IXGBE_STORE_AS_BE32(IXGBE_NTOHL(value)))
1701 #define IXGBE_STORE_AS_BE16(_value) \
1702 IXGBE_NTOHS(((u16)(_value) >> 8) | ((u16)(_value) << 8))
1704 s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
1705 union ixgbe_atr_input *input_mask, bool cloud_mode)
1707 /* mask IPv6 since it is currently not supported */
1708 u32 fdirm = IXGBE_FDIRM_DIPv6;
1711 UNREFERENCED_1PARAMETER(cloud_mode);
1712 DEBUGFUNC("ixgbe_fdir_set_atr_input_mask_82599");
1715 * Program the relevant mask registers. If src/dst_port or src/dst_addr
1716 * are zero, then assume a full mask for that field. Also assume that
1717 * a VLAN of 0 is unspecified, so mask that out as well. L4type
1718 * cannot be masked out in this implementation.
1720 * This also assumes IPv4 only. IPv6 masking isn't supported at this
1724 /* verify bucket hash is cleared on hash generation */
1725 if (input_mask->formatted.bkt_hash)
1726 DEBUGOUT(" bucket hash should always be 0 in mask\n");
1728 /* Program FDIRM and verify partial masks */
1729 switch (input_mask->formatted.vm_pool & 0x7F) {
1731 fdirm |= IXGBE_FDIRM_POOL;
1735 DEBUGOUT(" Error on vm pool mask\n");
1736 return IXGBE_ERR_CONFIG;
1739 switch (input_mask->formatted.flow_type & IXGBE_ATR_L4TYPE_MASK) {
1741 fdirm |= IXGBE_FDIRM_L4P;
1742 if (input_mask->formatted.dst_port ||
1743 input_mask->formatted.src_port) {
1744 DEBUGOUT(" Error on src/dst port mask\n");
1745 return IXGBE_ERR_CONFIG;
1747 case IXGBE_ATR_L4TYPE_MASK:
1750 DEBUGOUT(" Error on flow type mask\n");
1751 return IXGBE_ERR_CONFIG;
1754 switch (IXGBE_NTOHS(input_mask->formatted.vlan_id) & 0xEFFF) {
1757 fdirm |= IXGBE_FDIRM_VLANID;
1760 /* mask VLAN priority */
1761 fdirm |= IXGBE_FDIRM_VLANP;
1764 /* mask VLAN ID only */
1765 fdirm |= IXGBE_FDIRM_VLANID;
1768 /* no VLAN fields masked */
1771 DEBUGOUT(" Error on VLAN mask\n");
1772 return IXGBE_ERR_CONFIG;
1775 switch (input_mask->formatted.flex_bytes & 0xFFFF) {
1777 /* Mask Flex Bytes */
1778 fdirm |= IXGBE_FDIRM_FLEX;
1783 DEBUGOUT(" Error on flexible byte mask\n");
1784 return IXGBE_ERR_CONFIG;
1788 fdirm |= IXGBE_FDIRM_L3P;
1789 fdirip6m = ((u32) 0xFFFFU << IXGBE_FDIRIP6M_DIPM_SHIFT);
1790 fdirip6m |= IXGBE_FDIRIP6M_ALWAYS_MASK;
1792 switch (input_mask->formatted.inner_mac[0] & 0xFF) {
1794 /* Mask inner MAC, fall through */
1795 fdirip6m |= IXGBE_FDIRIP6M_INNER_MAC;
1799 DEBUGOUT(" Error on inner_mac byte mask\n");
1800 return IXGBE_ERR_CONFIG;
1803 switch (input_mask->formatted.tni_vni & 0xFFFFFFFF) {
1806 fdirip6m |= IXGBE_FDIRIP6M_TNI_VNI;
1809 fdirip6m |= IXGBE_FDIRIP6M_TNI_VNI_24;
1814 DEBUGOUT(" Error on TNI/VNI byte mask\n");
1815 return IXGBE_ERR_CONFIG;
1818 switch (input_mask->formatted.tunnel_type & 0xFFFF) {
1820 /* Mask turnnel type, fall through */
1821 fdirip6m |= IXGBE_FDIRIP6M_TUNNEL_TYPE;
1825 DEBUGOUT(" Error on tunnel type byte mask\n");
1826 return IXGBE_ERR_CONFIG;
1828 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIP6M, fdirip6m);
1830 /* Set all bits in FDIRTCPM, FDIRUDPM, FDIRSCTPM,
1831 * FDIRSIP4M and FDIRDIP4M in cloud mode to allow
1832 * L3/L3 packets to tunnel.
1834 IXGBE_WRITE_REG(hw, IXGBE_FDIRTCPM, 0xFFFFFFFF);
1835 IXGBE_WRITE_REG(hw, IXGBE_FDIRUDPM, 0xFFFFFFFF);
1836 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRDIP4M, 0xFFFFFFFF);
1837 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIP4M, 0xFFFFFFFF);
1838 switch (hw->mac.type) {
1839 case ixgbe_mac_X550:
1840 case ixgbe_mac_X550EM_x:
1841 case ixgbe_mac_X550EM_a:
1842 IXGBE_WRITE_REG(hw, IXGBE_FDIRSCTPM, 0xFFFFFFFF);
1849 /* Now mask VM pool and destination IPv6 - bits 5 and 2 */
1850 IXGBE_WRITE_REG(hw, IXGBE_FDIRM, fdirm);
1853 /* store the TCP/UDP port masks, bit reversed from port
1855 fdirtcpm = ixgbe_get_fdirtcpm_82599(input_mask);
1857 /* write both the same so that UDP and TCP use the same mask */
1858 IXGBE_WRITE_REG(hw, IXGBE_FDIRTCPM, ~fdirtcpm);
1859 IXGBE_WRITE_REG(hw, IXGBE_FDIRUDPM, ~fdirtcpm);
1860 /* also use it for SCTP */
1861 switch (hw->mac.type) {
1862 case ixgbe_mac_X550:
1863 case ixgbe_mac_X550EM_x:
1864 case ixgbe_mac_X550EM_a:
1865 IXGBE_WRITE_REG(hw, IXGBE_FDIRSCTPM, ~fdirtcpm);
1871 /* store source and destination IP masks (big-enian) */
1872 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIP4M,
1873 ~input_mask->formatted.src_ip[0]);
1874 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRDIP4M,
1875 ~input_mask->formatted.dst_ip[0]);
1876 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIP6M, 0xFFFFFFFF);
1878 return IXGBE_SUCCESS;
1881 s32 ixgbe_fdir_write_perfect_filter_82599(struct ixgbe_hw *hw,
1882 union ixgbe_atr_input *input,
1883 u16 soft_id, u8 queue, bool cloud_mode)
1885 u32 fdirport, fdirvlan, fdirhash, fdircmd;
1886 u32 addr_low, addr_high;
1889 UNREFERENCED_1PARAMETER(cloud_mode);
1891 DEBUGFUNC("ixgbe_fdir_write_perfect_filter_82599");
1893 /* currently IPv6 is not supported, must be programmed with 0 */
1894 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(0),
1895 input->formatted.src_ip[0]);
1896 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(1),
1897 input->formatted.src_ip[1]);
1898 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(2),
1899 input->formatted.src_ip[2]);
1901 /* record the source address (big-endian) */
1902 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPSA,
1903 input->formatted.src_ip[0]);
1905 /* record the first 32 bits of the destination address
1907 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPDA,
1908 input->formatted.dst_ip[0]);
1910 /* record source and destination port (little-endian)*/
1911 fdirport = IXGBE_NTOHS(input->formatted.dst_port);
1912 fdirport <<= IXGBE_FDIRPORT_DESTINATION_SHIFT;
1913 fdirport |= (u32)IXGBE_NTOHS(input->formatted.src_port);
1914 IXGBE_WRITE_REG(hw, IXGBE_FDIRPORT, fdirport);
1917 /* record VLAN (little-endian) and flex_bytes(big-endian) */
1918 fdirvlan = IXGBE_STORE_AS_BE16(input->formatted.flex_bytes);
1919 fdirvlan <<= IXGBE_FDIRVLAN_FLEX_SHIFT;
1920 fdirvlan |= (u32)IXGBE_NTOHS(input->formatted.vlan_id);
1921 IXGBE_WRITE_REG(hw, IXGBE_FDIRVLAN, fdirvlan);
1924 if (input->formatted.tunnel_type != 0)
1925 cloud_type = 0x80000000;
1927 addr_low = ((u32)input->formatted.inner_mac[0] |
1928 ((u32)input->formatted.inner_mac[1] << 8) |
1929 ((u32)input->formatted.inner_mac[2] << 16) |
1930 ((u32)input->formatted.inner_mac[3] << 24));
1931 addr_high = ((u32)input->formatted.inner_mac[4] |
1932 ((u32)input->formatted.inner_mac[5] << 8));
1933 cloud_type |= addr_high;
1934 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(0), addr_low);
1935 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(1), cloud_type);
1936 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(2), input->formatted.tni_vni);
1939 /* configure FDIRHASH register */
1940 fdirhash = input->formatted.bkt_hash;
1941 fdirhash |= soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT;
1942 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
1945 * flush all previous writes to make certain registers are
1946 * programmed prior to issuing the command
1948 IXGBE_WRITE_FLUSH(hw);
1950 /* configure FDIRCMD register */
1951 fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE |
1952 IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
1953 if (queue == IXGBE_FDIR_DROP_QUEUE)
1954 fdircmd |= IXGBE_FDIRCMD_DROP;
1955 if (input->formatted.flow_type & IXGBE_ATR_L4TYPE_TUNNEL_MASK)
1956 fdircmd |= IXGBE_FDIRCMD_TUNNEL_FILTER;
1957 fdircmd |= input->formatted.flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
1958 fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
1959 fdircmd |= (u32)input->formatted.vm_pool << IXGBE_FDIRCMD_VT_POOL_SHIFT;
1961 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, fdircmd);
1962 err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
1964 DEBUGOUT("Flow Director command did not complete!\n");
1968 return IXGBE_SUCCESS;
1971 s32 ixgbe_fdir_erase_perfect_filter_82599(struct ixgbe_hw *hw,
1972 union ixgbe_atr_input *input,
1979 /* configure FDIRHASH register */
1980 fdirhash = input->formatted.bkt_hash;
1981 fdirhash |= soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT;
1982 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
1984 /* flush hash to HW */
1985 IXGBE_WRITE_FLUSH(hw);
1987 /* Query if filter is present */
1988 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, IXGBE_FDIRCMD_CMD_QUERY_REM_FILT);
1990 err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
1992 DEBUGOUT("Flow Director command did not complete!\n");
1996 /* if filter exists in hardware then remove it */
1997 if (fdircmd & IXGBE_FDIRCMD_FILTER_VALID) {
1998 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
1999 IXGBE_WRITE_FLUSH(hw);
2000 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
2001 IXGBE_FDIRCMD_CMD_REMOVE_FLOW);
2004 return IXGBE_SUCCESS;
2008 * ixgbe_fdir_add_perfect_filter_82599 - Adds a perfect filter
2009 * @hw: pointer to hardware structure
2010 * @input: input bitstream
2011 * @input_mask: mask for the input bitstream
2012 * @soft_id: software index for the filters
2013 * @queue: queue index to direct traffic to
2014 * @cloud_mode: unused
2016 * Note that the caller to this function must lock before calling, since the
2017 * hardware writes must be protected from one another.
2019 s32 ixgbe_fdir_add_perfect_filter_82599(struct ixgbe_hw *hw,
2020 union ixgbe_atr_input *input,
2021 union ixgbe_atr_input *input_mask,
2022 u16 soft_id, u8 queue, bool cloud_mode)
2024 s32 err = IXGBE_ERR_CONFIG;
2025 UNREFERENCED_1PARAMETER(cloud_mode);
2027 DEBUGFUNC("ixgbe_fdir_add_perfect_filter_82599");
2030 * Check flow_type formatting, and bail out before we touch the hardware
2031 * if there's a configuration issue
2033 switch (input->formatted.flow_type) {
2034 case IXGBE_ATR_FLOW_TYPE_IPV4:
2035 case IXGBE_ATR_FLOW_TYPE_TUNNELED_IPV4:
2036 input_mask->formatted.flow_type = IXGBE_ATR_L4TYPE_IPV6_MASK;
2037 if (input->formatted.dst_port || input->formatted.src_port) {
2038 DEBUGOUT(" Error on src/dst port\n");
2039 return IXGBE_ERR_CONFIG;
2042 case IXGBE_ATR_FLOW_TYPE_SCTPV4:
2043 case IXGBE_ATR_FLOW_TYPE_TUNNELED_SCTPV4:
2044 if (input->formatted.dst_port || input->formatted.src_port) {
2045 DEBUGOUT(" Error on src/dst port\n");
2046 return IXGBE_ERR_CONFIG;
2049 case IXGBE_ATR_FLOW_TYPE_TCPV4:
2050 case IXGBE_ATR_FLOW_TYPE_TUNNELED_TCPV4:
2051 case IXGBE_ATR_FLOW_TYPE_UDPV4:
2052 case IXGBE_ATR_FLOW_TYPE_TUNNELED_UDPV4:
2053 input_mask->formatted.flow_type = IXGBE_ATR_L4TYPE_IPV6_MASK |
2054 IXGBE_ATR_L4TYPE_MASK;
2057 DEBUGOUT(" Error on flow type input\n");
2061 /* program input mask into the HW */
2062 err = ixgbe_fdir_set_input_mask_82599(hw, input_mask, cloud_mode);
2066 /* apply mask and compute/store hash */
2067 ixgbe_atr_compute_perfect_hash_82599(input, input_mask);
2069 /* program filters to filter memory */
2070 return ixgbe_fdir_write_perfect_filter_82599(hw, input,
2071 soft_id, queue, cloud_mode);
2075 * ixgbe_read_analog_reg8_82599 - Reads 8 bit Omer analog register
2076 * @hw: pointer to hardware structure
2077 * @reg: analog register to read
2080 * Performs read operation to Omer analog register specified.
2082 s32 ixgbe_read_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 *val)
2086 DEBUGFUNC("ixgbe_read_analog_reg8_82599");
2088 IXGBE_WRITE_REG(hw, IXGBE_CORECTL, IXGBE_CORECTL_WRITE_CMD |
2090 IXGBE_WRITE_FLUSH(hw);
2092 core_ctl = IXGBE_READ_REG(hw, IXGBE_CORECTL);
2093 *val = (u8)core_ctl;
2095 return IXGBE_SUCCESS;
2099 * ixgbe_write_analog_reg8_82599 - Writes 8 bit Omer analog register
2100 * @hw: pointer to hardware structure
2101 * @reg: atlas register to write
2102 * @val: value to write
2104 * Performs write operation to Omer analog register specified.
2106 s32 ixgbe_write_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 val)
2110 DEBUGFUNC("ixgbe_write_analog_reg8_82599");
2112 core_ctl = (reg << 8) | val;
2113 IXGBE_WRITE_REG(hw, IXGBE_CORECTL, core_ctl);
2114 IXGBE_WRITE_FLUSH(hw);
2117 return IXGBE_SUCCESS;
2121 * ixgbe_start_hw_82599 - Prepare hardware for Tx/Rx
2122 * @hw: pointer to hardware structure
2124 * Starts the hardware using the generic start_hw function
2125 * and the generation start_hw function.
2126 * Then performs revision-specific operations, if any.
2128 s32 ixgbe_start_hw_82599(struct ixgbe_hw *hw)
2130 s32 ret_val = IXGBE_SUCCESS;
2132 DEBUGFUNC("ixgbe_start_hw_82599");
2134 ret_val = ixgbe_start_hw_generic(hw);
2135 if (ret_val != IXGBE_SUCCESS)
2138 ixgbe_start_hw_gen2(hw);
2140 /* We need to run link autotry after the driver loads */
2141 hw->mac.autotry_restart = true;
2143 if (ret_val == IXGBE_SUCCESS)
2144 ret_val = ixgbe_verify_fw_version_82599(hw);
2150 * ixgbe_identify_phy_82599 - Get physical layer module
2151 * @hw: pointer to hardware structure
2153 * Determines the physical layer module found on the current adapter.
2154 * If PHY already detected, maintains current PHY type in hw struct,
2155 * otherwise executes the PHY detection routine.
2157 s32 ixgbe_identify_phy_82599(struct ixgbe_hw *hw)
2161 DEBUGFUNC("ixgbe_identify_phy_82599");
2163 /* Detect PHY if not unknown - returns success if already detected. */
2164 status = ixgbe_identify_phy_generic(hw);
2165 if (status != IXGBE_SUCCESS) {
2166 /* 82599 10GBASE-T requires an external PHY */
2167 if (hw->mac.ops.get_media_type(hw) == ixgbe_media_type_copper)
2170 status = ixgbe_identify_module_generic(hw);
2173 /* Set PHY type none if no PHY detected */
2174 if (hw->phy.type == ixgbe_phy_unknown) {
2175 hw->phy.type = ixgbe_phy_none;
2176 return IXGBE_SUCCESS;
2179 /* Return error if SFP module has been detected but is not supported */
2180 if (hw->phy.type == ixgbe_phy_sfp_unsupported)
2181 return IXGBE_ERR_SFP_NOT_SUPPORTED;
2187 * ixgbe_get_supported_physical_layer_82599 - Returns physical layer type
2188 * @hw: pointer to hardware structure
2190 * Determines physical layer capabilities of the current configuration.
2192 u64 ixgbe_get_supported_physical_layer_82599(struct ixgbe_hw *hw)
2194 u64 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
2195 u32 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
2196 u32 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
2197 u32 pma_pmd_10g_serial = autoc2 & IXGBE_AUTOC2_10G_SERIAL_PMA_PMD_MASK;
2198 u32 pma_pmd_10g_parallel = autoc & IXGBE_AUTOC_10G_PMA_PMD_MASK;
2199 u32 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;
2200 u16 ext_ability = 0;
2202 DEBUGFUNC("ixgbe_get_support_physical_layer_82599");
2204 hw->phy.ops.identify(hw);
2206 switch (hw->phy.type) {
2208 case ixgbe_phy_cu_unknown:
2209 hw->phy.ops.read_reg(hw, IXGBE_MDIO_PHY_EXT_ABILITY,
2210 IXGBE_MDIO_PMA_PMD_DEV_TYPE, &ext_ability);
2211 if (ext_ability & IXGBE_MDIO_PHY_10GBASET_ABILITY)
2212 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_T;
2213 if (ext_ability & IXGBE_MDIO_PHY_1000BASET_ABILITY)
2214 physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_T;
2215 if (ext_ability & IXGBE_MDIO_PHY_100BASETX_ABILITY)
2216 physical_layer |= IXGBE_PHYSICAL_LAYER_100BASE_TX;
2222 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
2223 case IXGBE_AUTOC_LMS_1G_AN:
2224 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
2225 if (pma_pmd_1g == IXGBE_AUTOC_1G_KX_BX) {
2226 physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_KX |
2227 IXGBE_PHYSICAL_LAYER_1000BASE_BX;
2230 /* SFI mode so read SFP module */
2233 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
2234 if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_CX4)
2235 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_CX4;
2236 else if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_KX4)
2237 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
2238 else if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_XAUI)
2239 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_XAUI;
2242 case IXGBE_AUTOC_LMS_10G_SERIAL:
2243 if (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_KR) {
2244 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KR;
2246 } else if (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI)
2249 case IXGBE_AUTOC_LMS_KX4_KX_KR:
2250 case IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN:
2251 if (autoc & IXGBE_AUTOC_KX_SUPP)
2252 physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_KX;
2253 if (autoc & IXGBE_AUTOC_KX4_SUPP)
2254 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
2255 if (autoc & IXGBE_AUTOC_KR_SUPP)
2256 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KR;
2265 /* SFP check must be done last since DA modules are sometimes used to
2266 * test KR mode - we need to id KR mode correctly before SFP module.
2267 * Call identify_sfp because the pluggable module may have changed */
2268 physical_layer = ixgbe_get_supported_phy_sfp_layer_generic(hw);
2270 return physical_layer;
2274 * ixgbe_enable_rx_dma_82599 - Enable the Rx DMA unit on 82599
2275 * @hw: pointer to hardware structure
2276 * @regval: register value to write to RXCTRL
2278 * Enables the Rx DMA unit for 82599
2280 s32 ixgbe_enable_rx_dma_82599(struct ixgbe_hw *hw, u32 regval)
2283 DEBUGFUNC("ixgbe_enable_rx_dma_82599");
2286 * Workaround for 82599 silicon errata when enabling the Rx datapath.
2287 * If traffic is incoming before we enable the Rx unit, it could hang
2288 * the Rx DMA unit. Therefore, make sure the security engine is
2289 * completely disabled prior to enabling the Rx unit.
2292 hw->mac.ops.disable_sec_rx_path(hw);
2294 if (regval & IXGBE_RXCTRL_RXEN)
2295 ixgbe_enable_rx(hw);
2297 ixgbe_disable_rx(hw);
2299 hw->mac.ops.enable_sec_rx_path(hw);
2301 return IXGBE_SUCCESS;
2305 * ixgbe_verify_fw_version_82599 - verify FW version for 82599
2306 * @hw: pointer to hardware structure
2308 * Verifies that installed the firmware version is 0.6 or higher
2309 * for SFI devices. All 82599 SFI devices should have version 0.6 or higher.
2311 * Returns IXGBE_ERR_EEPROM_VERSION if the FW is not present or
2312 * if the FW version is not supported.
2314 static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw)
2316 s32 status = IXGBE_ERR_EEPROM_VERSION;
2317 u16 fw_offset, fw_ptp_cfg_offset;
2320 DEBUGFUNC("ixgbe_verify_fw_version_82599");
2322 /* firmware check is only necessary for SFI devices */
2323 if (hw->phy.media_type != ixgbe_media_type_fiber) {
2324 status = IXGBE_SUCCESS;
2325 goto fw_version_out;
2328 /* get the offset to the Firmware Module block */
2329 if (hw->eeprom.ops.read(hw, IXGBE_FW_PTR, &fw_offset)) {
2330 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
2331 "eeprom read at offset %d failed", IXGBE_FW_PTR);
2332 return IXGBE_ERR_EEPROM_VERSION;
2335 if ((fw_offset == 0) || (fw_offset == 0xFFFF))
2336 goto fw_version_out;
2338 /* get the offset to the Pass Through Patch Configuration block */
2339 if (hw->eeprom.ops.read(hw, (fw_offset +
2340 IXGBE_FW_PASSTHROUGH_PATCH_CONFIG_PTR),
2341 &fw_ptp_cfg_offset)) {
2342 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
2343 "eeprom read at offset %d failed",
2345 IXGBE_FW_PASSTHROUGH_PATCH_CONFIG_PTR);
2346 return IXGBE_ERR_EEPROM_VERSION;
2349 if ((fw_ptp_cfg_offset == 0) || (fw_ptp_cfg_offset == 0xFFFF))
2350 goto fw_version_out;
2352 /* get the firmware version */
2353 if (hw->eeprom.ops.read(hw, (fw_ptp_cfg_offset +
2354 IXGBE_FW_PATCH_VERSION_4), &fw_version)) {
2355 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
2356 "eeprom read at offset %d failed",
2357 fw_ptp_cfg_offset + IXGBE_FW_PATCH_VERSION_4);
2358 return IXGBE_ERR_EEPROM_VERSION;
2361 if (fw_version > 0x5)
2362 status = IXGBE_SUCCESS;
2369 * ixgbe_verify_lesm_fw_enabled_82599 - Checks LESM FW module state.
2370 * @hw: pointer to hardware structure
2372 * Returns true if the LESM FW module is present and enabled. Otherwise
2373 * returns false. Smart Speed must be disabled if LESM FW module is enabled.
2375 bool ixgbe_verify_lesm_fw_enabled_82599(struct ixgbe_hw *hw)
2377 bool lesm_enabled = false;
2378 u16 fw_offset, fw_lesm_param_offset, fw_lesm_state;
2381 DEBUGFUNC("ixgbe_verify_lesm_fw_enabled_82599");
2383 /* get the offset to the Firmware Module block */
2384 status = hw->eeprom.ops.read(hw, IXGBE_FW_PTR, &fw_offset);
2386 if ((status != IXGBE_SUCCESS) ||
2387 (fw_offset == 0) || (fw_offset == 0xFFFF))
2390 /* get the offset to the LESM Parameters block */
2391 status = hw->eeprom.ops.read(hw, (fw_offset +
2392 IXGBE_FW_LESM_PARAMETERS_PTR),
2393 &fw_lesm_param_offset);
2395 if ((status != IXGBE_SUCCESS) ||
2396 (fw_lesm_param_offset == 0) || (fw_lesm_param_offset == 0xFFFF))
2399 /* get the LESM state word */
2400 status = hw->eeprom.ops.read(hw, (fw_lesm_param_offset +
2401 IXGBE_FW_LESM_STATE_1),
2404 if ((status == IXGBE_SUCCESS) &&
2405 (fw_lesm_state & IXGBE_FW_LESM_STATE_ENABLED))
2406 lesm_enabled = true;
2409 return lesm_enabled;
2413 * ixgbe_read_eeprom_buffer_82599 - Read EEPROM word(s) using
2414 * fastest available method
2416 * @hw: pointer to hardware structure
2417 * @offset: offset of word in EEPROM to read
2418 * @words: number of words
2419 * @data: word(s) read from the EEPROM
2421 * Retrieves 16 bit word(s) read from EEPROM
2423 static s32 ixgbe_read_eeprom_buffer_82599(struct ixgbe_hw *hw, u16 offset,
2424 u16 words, u16 *data)
2426 struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
2427 s32 ret_val = IXGBE_ERR_CONFIG;
2429 DEBUGFUNC("ixgbe_read_eeprom_buffer_82599");
2432 * If EEPROM is detected and can be addressed using 14 bits,
2433 * use EERD otherwise use bit bang
2435 if ((eeprom->type == ixgbe_eeprom_spi) &&
2436 (offset + (words - 1) <= IXGBE_EERD_MAX_ADDR))
2437 ret_val = ixgbe_read_eerd_buffer_generic(hw, offset, words,
2440 ret_val = ixgbe_read_eeprom_buffer_bit_bang_generic(hw, offset,
2448 * ixgbe_read_eeprom_82599 - Read EEPROM word using
2449 * fastest available method
2451 * @hw: pointer to hardware structure
2452 * @offset: offset of word in the EEPROM to read
2453 * @data: word read from the EEPROM
2455 * Reads a 16 bit word from the EEPROM
2457 static s32 ixgbe_read_eeprom_82599(struct ixgbe_hw *hw,
2458 u16 offset, u16 *data)
2460 struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
2461 s32 ret_val = IXGBE_ERR_CONFIG;
2463 DEBUGFUNC("ixgbe_read_eeprom_82599");
2466 * If EEPROM is detected and can be addressed using 14 bits,
2467 * use EERD otherwise use bit bang
2469 if ((eeprom->type == ixgbe_eeprom_spi) &&
2470 (offset <= IXGBE_EERD_MAX_ADDR))
2471 ret_val = ixgbe_read_eerd_generic(hw, offset, data);
2473 ret_val = ixgbe_read_eeprom_bit_bang_generic(hw, offset, data);
2479 * ixgbe_reset_pipeline_82599 - perform pipeline reset
2481 * @hw: pointer to hardware structure
2483 * Reset pipeline by asserting Restart_AN together with LMS change to ensure
2484 * full pipeline reset. This function assumes the SW/FW lock is held.
2486 s32 ixgbe_reset_pipeline_82599(struct ixgbe_hw *hw)
2490 u32 i, autoc_reg, autoc2_reg;
2492 /* Enable link if disabled in NVM */
2493 autoc2_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
2494 if (autoc2_reg & IXGBE_AUTOC2_LINK_DISABLE_MASK) {
2495 autoc2_reg &= ~IXGBE_AUTOC2_LINK_DISABLE_MASK;
2496 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2_reg);
2497 IXGBE_WRITE_FLUSH(hw);
2500 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
2501 autoc_reg |= IXGBE_AUTOC_AN_RESTART;
2502 /* Write AUTOC register with toggled LMS[2] bit and Restart_AN */
2503 IXGBE_WRITE_REG(hw, IXGBE_AUTOC,
2504 autoc_reg ^ (0x4 << IXGBE_AUTOC_LMS_SHIFT));
2505 /* Wait for AN to leave state 0 */
2506 for (i = 0; i < 10; i++) {
2508 anlp1_reg = IXGBE_READ_REG(hw, IXGBE_ANLP1);
2509 if (anlp1_reg & IXGBE_ANLP1_AN_STATE_MASK)
2513 if (!(anlp1_reg & IXGBE_ANLP1_AN_STATE_MASK)) {
2514 DEBUGOUT("auto negotiation not completed\n");
2515 ret_val = IXGBE_ERR_RESET_FAILED;
2516 goto reset_pipeline_out;
2519 ret_val = IXGBE_SUCCESS;
2522 /* Write AUTOC register with original LMS field and Restart_AN */
2523 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
2524 IXGBE_WRITE_FLUSH(hw);
2530 * ixgbe_read_i2c_byte_82599 - Reads 8 bit word over I2C
2531 * @hw: pointer to hardware structure
2532 * @byte_offset: byte offset to read
2533 * @dev_addr: address to read from
2536 * Performs byte read operation to SFP module's EEPROM over I2C interface at
2537 * a specified device address.
2539 static s32 ixgbe_read_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
2540 u8 dev_addr, u8 *data)
2546 DEBUGFUNC("ixgbe_read_i2c_byte_82599");
2548 if (hw->phy.qsfp_shared_i2c_bus == true) {
2549 /* Acquire I2C bus ownership. */
2550 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2551 esdp |= IXGBE_ESDP_SDP0;
2552 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2553 IXGBE_WRITE_FLUSH(hw);
2556 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2557 if (esdp & IXGBE_ESDP_SDP1)
2565 DEBUGOUT("Driver can't access resource,"
2566 " acquiring I2C bus timeout.\n");
2567 status = IXGBE_ERR_I2C;
2568 goto release_i2c_access;
2572 status = ixgbe_read_i2c_byte_generic(hw, byte_offset, dev_addr, data);
2576 if (hw->phy.qsfp_shared_i2c_bus == true) {
2577 /* Release I2C bus ownership. */
2578 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2579 esdp &= ~IXGBE_ESDP_SDP0;
2580 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2581 IXGBE_WRITE_FLUSH(hw);
2588 * ixgbe_write_i2c_byte_82599 - Writes 8 bit word over I2C
2589 * @hw: pointer to hardware structure
2590 * @byte_offset: byte offset to write
2591 * @dev_addr: address to read from
2592 * @data: value to write
2594 * Performs byte write operation to SFP module's EEPROM over I2C interface at
2595 * a specified device address.
2597 static s32 ixgbe_write_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
2598 u8 dev_addr, u8 data)
2604 DEBUGFUNC("ixgbe_write_i2c_byte_82599");
2606 if (hw->phy.qsfp_shared_i2c_bus == true) {
2607 /* Acquire I2C bus ownership. */
2608 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2609 esdp |= IXGBE_ESDP_SDP0;
2610 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2611 IXGBE_WRITE_FLUSH(hw);
2614 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2615 if (esdp & IXGBE_ESDP_SDP1)
2623 DEBUGOUT("Driver can't access resource,"
2624 " acquiring I2C bus timeout.\n");
2625 status = IXGBE_ERR_I2C;
2626 goto release_i2c_access;
2630 status = ixgbe_write_i2c_byte_generic(hw, byte_offset, dev_addr, data);
2634 if (hw->phy.qsfp_shared_i2c_bus == true) {
2635 /* Release I2C bus ownership. */
2636 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2637 esdp &= ~IXGBE_ESDP_SDP0;
2638 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2639 IXGBE_WRITE_FLUSH(hw);