1 /******************************************************************************
2 SPDX-License-Identifier: BSD-3-Clause
4 Copyright (c) 2001-2017, Intel Corporation
7 Redistribution and use in source and binary forms, with or without
8 modification, are permitted provided that the following conditions are met:
10 1. Redistributions of source code must retain the above copyright notice,
11 this list of conditions and the following disclaimer.
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 * @reg_val: 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.bypass_rw = ixgbe_bypass_rw_generic;
399 mac->ops.bypass_valid_rd = ixgbe_bypass_valid_rd_generic;
400 mac->ops.bypass_set = ixgbe_bypass_set_generic;
401 mac->ops.bypass_rd_eep = ixgbe_bypass_rd_eep_generic;
403 mac->ops.get_rtrup2tc = ixgbe_dcb_get_rtrup2tc_generic;
409 * ixgbe_get_link_capabilities_82599 - Determines link capabilities
410 * @hw: pointer to hardware structure
411 * @speed: pointer to link speed
412 * @autoneg: TRUE when autoneg or autotry is enabled
414 * Determines the link capabilities by reading the AUTOC register.
416 s32 ixgbe_get_link_capabilities_82599(struct ixgbe_hw *hw,
417 ixgbe_link_speed *speed,
420 s32 status = IXGBE_SUCCESS;
423 DEBUGFUNC("ixgbe_get_link_capabilities_82599");
426 /* Check if 1G SFP module. */
427 if (hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core0 ||
428 hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core1 ||
429 hw->phy.sfp_type == ixgbe_sfp_type_1g_lx_core0 ||
430 hw->phy.sfp_type == ixgbe_sfp_type_1g_lx_core1 ||
431 hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core0 ||
432 hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core1) {
433 *speed = IXGBE_LINK_SPEED_1GB_FULL;
439 * Determine link capabilities based on the stored value of AUTOC,
440 * which represents EEPROM defaults. If AUTOC value has not
441 * been stored, use the current register values.
443 if (hw->mac.orig_link_settings_stored)
444 autoc = hw->mac.orig_autoc;
446 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
448 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
449 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
450 *speed = IXGBE_LINK_SPEED_1GB_FULL;
454 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
455 *speed = IXGBE_LINK_SPEED_10GB_FULL;
459 case IXGBE_AUTOC_LMS_1G_AN:
460 *speed = IXGBE_LINK_SPEED_1GB_FULL;
464 case IXGBE_AUTOC_LMS_10G_SERIAL:
465 *speed = IXGBE_LINK_SPEED_10GB_FULL;
469 case IXGBE_AUTOC_LMS_KX4_KX_KR:
470 case IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN:
471 *speed = IXGBE_LINK_SPEED_UNKNOWN;
472 if (autoc & IXGBE_AUTOC_KR_SUPP)
473 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
474 if (autoc & IXGBE_AUTOC_KX4_SUPP)
475 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
476 if (autoc & IXGBE_AUTOC_KX_SUPP)
477 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
481 case IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII:
482 *speed = IXGBE_LINK_SPEED_100_FULL;
483 if (autoc & IXGBE_AUTOC_KR_SUPP)
484 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
485 if (autoc & IXGBE_AUTOC_KX4_SUPP)
486 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
487 if (autoc & IXGBE_AUTOC_KX_SUPP)
488 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
492 case IXGBE_AUTOC_LMS_SGMII_1G_100M:
493 *speed = IXGBE_LINK_SPEED_1GB_FULL | IXGBE_LINK_SPEED_100_FULL;
498 status = IXGBE_ERR_LINK_SETUP;
503 if (hw->phy.multispeed_fiber) {
504 *speed |= IXGBE_LINK_SPEED_10GB_FULL |
505 IXGBE_LINK_SPEED_1GB_FULL;
507 /* QSFP must not enable full auto-negotiation
508 * Limited autoneg is enabled at 1G
510 if (hw->phy.media_type == ixgbe_media_type_fiber_qsfp)
521 * ixgbe_get_media_type_82599 - Get media type
522 * @hw: pointer to hardware structure
524 * Returns the media type (fiber, copper, backplane)
526 enum ixgbe_media_type ixgbe_get_media_type_82599(struct ixgbe_hw *hw)
528 enum ixgbe_media_type media_type;
530 DEBUGFUNC("ixgbe_get_media_type_82599");
532 /* Detect if there is a copper PHY attached. */
533 switch (hw->phy.type) {
534 case ixgbe_phy_cu_unknown:
536 media_type = ixgbe_media_type_copper;
542 switch (hw->device_id) {
543 case IXGBE_DEV_ID_82599_KX4:
544 case IXGBE_DEV_ID_82599_KX4_MEZZ:
545 case IXGBE_DEV_ID_82599_COMBO_BACKPLANE:
546 case IXGBE_DEV_ID_82599_KR:
547 case IXGBE_DEV_ID_82599_BACKPLANE_FCOE:
548 case IXGBE_DEV_ID_82599_XAUI_LOM:
549 /* Default device ID is mezzanine card KX/KX4 */
550 media_type = ixgbe_media_type_backplane;
552 case IXGBE_DEV_ID_82599_SFP:
553 case IXGBE_DEV_ID_82599_SFP_FCOE:
554 case IXGBE_DEV_ID_82599_SFP_EM:
555 case IXGBE_DEV_ID_82599_SFP_SF2:
556 case IXGBE_DEV_ID_82599_SFP_SF_QP:
557 case IXGBE_DEV_ID_82599EN_SFP:
558 media_type = ixgbe_media_type_fiber;
560 case IXGBE_DEV_ID_82599_CX4:
561 media_type = ixgbe_media_type_cx4;
563 case IXGBE_DEV_ID_82599_T3_LOM:
564 media_type = ixgbe_media_type_copper;
566 case IXGBE_DEV_ID_82599_QSFP_SF_QP:
567 media_type = ixgbe_media_type_fiber_qsfp;
569 case IXGBE_DEV_ID_82599_BYPASS:
570 media_type = ixgbe_media_type_fiber_fixed;
571 hw->phy.multispeed_fiber = TRUE;
574 media_type = ixgbe_media_type_unknown;
582 * ixgbe_stop_mac_link_on_d3_82599 - Disables link on D3
583 * @hw: pointer to hardware structure
585 * Disables link during D3 power down sequence.
588 void ixgbe_stop_mac_link_on_d3_82599(struct ixgbe_hw *hw)
593 DEBUGFUNC("ixgbe_stop_mac_link_on_d3_82599");
594 ixgbe_read_eeprom(hw, IXGBE_EEPROM_CTRL_2, &ee_ctrl_2);
596 if (!ixgbe_mng_present(hw) && !hw->wol_enabled &&
597 ee_ctrl_2 & IXGBE_EEPROM_CCD_BIT) {
598 autoc2_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
599 autoc2_reg |= IXGBE_AUTOC2_LINK_DISABLE_ON_D3_MASK;
600 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2_reg);
605 * ixgbe_start_mac_link_82599 - Setup MAC link settings
606 * @hw: pointer to hardware structure
607 * @autoneg_wait_to_complete: TRUE when waiting for completion is needed
609 * Configures link settings based on values in the ixgbe_hw struct.
610 * Restarts the link. Performs autonegotiation if needed.
612 s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw,
613 bool autoneg_wait_to_complete)
618 s32 status = IXGBE_SUCCESS;
619 bool got_lock = FALSE;
621 DEBUGFUNC("ixgbe_start_mac_link_82599");
624 /* reset_pipeline requires us to hold this lock as it writes to
627 if (ixgbe_verify_lesm_fw_enabled_82599(hw)) {
628 status = hw->mac.ops.acquire_swfw_sync(hw,
629 IXGBE_GSSR_MAC_CSR_SM);
630 if (status != IXGBE_SUCCESS)
637 ixgbe_reset_pipeline_82599(hw);
640 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
642 /* Only poll for autoneg to complete if specified to do so */
643 if (autoneg_wait_to_complete) {
644 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
645 if ((autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
646 IXGBE_AUTOC_LMS_KX4_KX_KR ||
647 (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
648 IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
649 (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
650 IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
651 links_reg = 0; /* Just in case Autoneg time = 0 */
652 for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
653 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
654 if (links_reg & IXGBE_LINKS_KX_AN_COMP)
658 if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
659 status = IXGBE_ERR_AUTONEG_NOT_COMPLETE;
660 DEBUGOUT("Autoneg did not complete.\n");
665 /* Add delay to filter out noises during initial link setup */
673 * ixgbe_disable_tx_laser_multispeed_fiber - Disable Tx laser
674 * @hw: pointer to hardware structure
676 * The base drivers may require better control over SFP+ module
677 * PHY states. This includes selectively shutting down the Tx
678 * laser on the PHY, effectively halting physical link.
680 void ixgbe_disable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
682 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
684 /* Blocked by MNG FW so bail */
685 if (ixgbe_check_reset_blocked(hw))
688 /* Disable Tx laser; allow 100us to go dark per spec */
689 esdp_reg |= IXGBE_ESDP_SDP3;
690 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
691 IXGBE_WRITE_FLUSH(hw);
696 * ixgbe_enable_tx_laser_multispeed_fiber - Enable Tx laser
697 * @hw: pointer to hardware structure
699 * The base drivers may require better control over SFP+ module
700 * PHY states. This includes selectively turning on the Tx
701 * laser on the PHY, effectively starting physical link.
703 void ixgbe_enable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
705 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
707 /* Enable Tx laser; allow 100ms to light up */
708 esdp_reg &= ~IXGBE_ESDP_SDP3;
709 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
710 IXGBE_WRITE_FLUSH(hw);
715 * ixgbe_flap_tx_laser_multispeed_fiber - Flap Tx laser
716 * @hw: pointer to hardware structure
718 * When the driver changes the link speeds that it can support,
719 * it sets autotry_restart to TRUE to indicate that we need to
720 * initiate a new autotry session with the link partner. To do
721 * so, we set the speed then disable and re-enable the Tx laser, to
722 * alert the link partner that it also needs to restart autotry on its
723 * end. This is consistent with TRUE clause 37 autoneg, which also
724 * involves a loss of signal.
726 void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
728 DEBUGFUNC("ixgbe_flap_tx_laser_multispeed_fiber");
730 /* Blocked by MNG FW so bail */
731 if (ixgbe_check_reset_blocked(hw))
734 if (hw->mac.autotry_restart) {
735 ixgbe_disable_tx_laser_multispeed_fiber(hw);
736 ixgbe_enable_tx_laser_multispeed_fiber(hw);
737 hw->mac.autotry_restart = FALSE;
742 * ixgbe_set_hard_rate_select_speed - Set module link speed
743 * @hw: pointer to hardware structure
744 * @speed: link speed to set
746 * Set module link speed via RS0/RS1 rate select pins.
748 void ixgbe_set_hard_rate_select_speed(struct ixgbe_hw *hw,
749 ixgbe_link_speed speed)
751 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
754 case IXGBE_LINK_SPEED_10GB_FULL:
755 esdp_reg |= (IXGBE_ESDP_SDP5_DIR | IXGBE_ESDP_SDP5);
757 case IXGBE_LINK_SPEED_1GB_FULL:
758 esdp_reg &= ~IXGBE_ESDP_SDP5;
759 esdp_reg |= IXGBE_ESDP_SDP5_DIR;
762 DEBUGOUT("Invalid fixed module speed\n");
766 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
767 IXGBE_WRITE_FLUSH(hw);
771 * ixgbe_setup_mac_link_smartspeed - Set MAC link speed using SmartSpeed
772 * @hw: pointer to hardware structure
773 * @speed: new link speed
774 * @autoneg_wait_to_complete: TRUE when waiting for completion is needed
776 * Implements the Intel SmartSpeed algorithm.
778 s32 ixgbe_setup_mac_link_smartspeed(struct ixgbe_hw *hw,
779 ixgbe_link_speed speed,
780 bool autoneg_wait_to_complete)
782 s32 status = IXGBE_SUCCESS;
783 ixgbe_link_speed link_speed = IXGBE_LINK_SPEED_UNKNOWN;
785 bool link_up = FALSE;
786 u32 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
788 DEBUGFUNC("ixgbe_setup_mac_link_smartspeed");
790 /* Set autoneg_advertised value based on input link speed */
791 hw->phy.autoneg_advertised = 0;
793 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
794 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_10GB_FULL;
796 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
797 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_1GB_FULL;
799 if (speed & IXGBE_LINK_SPEED_100_FULL)
800 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_100_FULL;
803 * Implement Intel SmartSpeed algorithm. SmartSpeed will reduce the
804 * autoneg advertisement if link is unable to be established at the
805 * highest negotiated rate. This can sometimes happen due to integrity
806 * issues with the physical media connection.
809 /* First, try to get link with full advertisement */
810 hw->phy.smart_speed_active = FALSE;
811 for (j = 0; j < IXGBE_SMARTSPEED_MAX_RETRIES; j++) {
812 status = ixgbe_setup_mac_link_82599(hw, speed,
813 autoneg_wait_to_complete);
814 if (status != IXGBE_SUCCESS)
818 * Wait for the controller to acquire link. Per IEEE 802.3ap,
819 * Section 73.10.2, we may have to wait up to 500ms if KR is
820 * attempted, or 200ms if KX/KX4/BX/BX4 is attempted, per
821 * Table 9 in the AN MAS.
823 for (i = 0; i < 5; i++) {
826 /* If we have link, just jump out */
827 status = ixgbe_check_link(hw, &link_speed, &link_up,
829 if (status != IXGBE_SUCCESS)
838 * We didn't get link. If we advertised KR plus one of KX4/KX
839 * (or BX4/BX), then disable KR and try again.
841 if (((autoc_reg & IXGBE_AUTOC_KR_SUPP) == 0) ||
842 ((autoc_reg & IXGBE_AUTOC_KX4_KX_SUPP_MASK) == 0))
845 /* Turn SmartSpeed on to disable KR support */
846 hw->phy.smart_speed_active = TRUE;
847 status = ixgbe_setup_mac_link_82599(hw, speed,
848 autoneg_wait_to_complete);
849 if (status != IXGBE_SUCCESS)
853 * Wait for the controller to acquire link. 600ms will allow for
854 * the AN link_fail_inhibit_timer as well for multiple cycles of
855 * parallel detect, both 10g and 1g. This allows for the maximum
856 * connect attempts as defined in the AN MAS table 73-7.
858 for (i = 0; i < 6; i++) {
861 /* If we have link, just jump out */
862 status = ixgbe_check_link(hw, &link_speed, &link_up, FALSE);
863 if (status != IXGBE_SUCCESS)
870 /* We didn't get link. Turn SmartSpeed back off. */
871 hw->phy.smart_speed_active = FALSE;
872 status = ixgbe_setup_mac_link_82599(hw, speed,
873 autoneg_wait_to_complete);
876 if (link_up && (link_speed == IXGBE_LINK_SPEED_1GB_FULL))
877 DEBUGOUT("Smartspeed has downgraded the link speed "
878 "from the maximum advertised\n");
883 * ixgbe_setup_mac_link_82599 - Set MAC link speed
884 * @hw: pointer to hardware structure
885 * @speed: new link speed
886 * @autoneg_wait_to_complete: TRUE when waiting for completion is needed
888 * Set the link speed in the AUTOC register and restarts link.
890 s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw,
891 ixgbe_link_speed speed,
892 bool autoneg_wait_to_complete)
894 bool autoneg = FALSE;
895 s32 status = IXGBE_SUCCESS;
896 u32 pma_pmd_1g, link_mode;
897 u32 current_autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC); /* holds the value of AUTOC register at this current point in time */
898 u32 orig_autoc = 0; /* holds the cached value of AUTOC register */
899 u32 autoc = current_autoc; /* Temporary variable used for comparison purposes */
900 u32 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
901 u32 pma_pmd_10g_serial = autoc2 & IXGBE_AUTOC2_10G_SERIAL_PMA_PMD_MASK;
904 ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN;
906 DEBUGFUNC("ixgbe_setup_mac_link_82599");
908 /* Check to see if speed passed in is supported. */
909 status = ixgbe_get_link_capabilities(hw, &link_capabilities, &autoneg);
913 speed &= link_capabilities;
915 if (speed == IXGBE_LINK_SPEED_UNKNOWN) {
916 status = IXGBE_ERR_LINK_SETUP;
920 /* Use stored value (EEPROM defaults) of AUTOC to find KR/KX4 support*/
921 if (hw->mac.orig_link_settings_stored)
922 orig_autoc = hw->mac.orig_autoc;
926 link_mode = autoc & IXGBE_AUTOC_LMS_MASK;
927 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;
929 if (link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR ||
930 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
931 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
932 /* Set KX4/KX/KR support according to speed requested */
933 autoc &= ~(IXGBE_AUTOC_KX4_KX_SUPP_MASK | IXGBE_AUTOC_KR_SUPP);
934 if (speed & IXGBE_LINK_SPEED_10GB_FULL) {
935 if (orig_autoc & IXGBE_AUTOC_KX4_SUPP)
936 autoc |= IXGBE_AUTOC_KX4_SUPP;
937 if ((orig_autoc & IXGBE_AUTOC_KR_SUPP) &&
938 (hw->phy.smart_speed_active == FALSE))
939 autoc |= IXGBE_AUTOC_KR_SUPP;
941 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
942 autoc |= IXGBE_AUTOC_KX_SUPP;
943 } else if ((pma_pmd_1g == IXGBE_AUTOC_1G_SFI) &&
944 (link_mode == IXGBE_AUTOC_LMS_1G_LINK_NO_AN ||
945 link_mode == IXGBE_AUTOC_LMS_1G_AN)) {
946 /* Switch from 1G SFI to 10G SFI if requested */
947 if ((speed == IXGBE_LINK_SPEED_10GB_FULL) &&
948 (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI)) {
949 autoc &= ~IXGBE_AUTOC_LMS_MASK;
950 autoc |= IXGBE_AUTOC_LMS_10G_SERIAL;
952 } else if ((pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI) &&
953 (link_mode == IXGBE_AUTOC_LMS_10G_SERIAL)) {
954 /* Switch from 10G SFI to 1G SFI if requested */
955 if ((speed == IXGBE_LINK_SPEED_1GB_FULL) &&
956 (pma_pmd_1g == IXGBE_AUTOC_1G_SFI)) {
957 autoc &= ~IXGBE_AUTOC_LMS_MASK;
958 if (autoneg || hw->phy.type == ixgbe_phy_qsfp_intel)
959 autoc |= IXGBE_AUTOC_LMS_1G_AN;
961 autoc |= IXGBE_AUTOC_LMS_1G_LINK_NO_AN;
965 if (autoc != current_autoc) {
967 status = hw->mac.ops.prot_autoc_write(hw, autoc, FALSE);
968 if (status != IXGBE_SUCCESS)
971 /* Only poll for autoneg to complete if specified to do so */
972 if (autoneg_wait_to_complete) {
973 if (link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR ||
974 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
975 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
976 links_reg = 0; /*Just in case Autoneg time=0*/
977 for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
979 IXGBE_READ_REG(hw, IXGBE_LINKS);
980 if (links_reg & IXGBE_LINKS_KX_AN_COMP)
984 if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
986 IXGBE_ERR_AUTONEG_NOT_COMPLETE;
987 DEBUGOUT("Autoneg did not complete.\n");
992 /* Add delay to filter out noises during initial link setup */
1001 * ixgbe_setup_copper_link_82599 - Set the PHY autoneg advertised field
1002 * @hw: pointer to hardware structure
1003 * @speed: new link speed
1004 * @autoneg_wait_to_complete: TRUE if waiting is needed to complete
1006 * Restarts link on PHY and MAC based on settings passed in.
1008 static s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw,
1009 ixgbe_link_speed speed,
1010 bool autoneg_wait_to_complete)
1014 DEBUGFUNC("ixgbe_setup_copper_link_82599");
1016 /* Setup the PHY according to input speed */
1017 status = hw->phy.ops.setup_link_speed(hw, speed,
1018 autoneg_wait_to_complete);
1020 ixgbe_start_mac_link_82599(hw, autoneg_wait_to_complete);
1026 * ixgbe_reset_hw_82599 - Perform hardware reset
1027 * @hw: pointer to hardware structure
1029 * Resets the hardware by resetting the transmit and receive units, masks
1030 * and clears all interrupts, perform a PHY reset, and perform a link (MAC)
1033 s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw)
1035 ixgbe_link_speed link_speed;
1038 u32 i, autoc, autoc2;
1040 bool link_up = FALSE;
1042 DEBUGFUNC("ixgbe_reset_hw_82599");
1044 /* Call adapter stop to disable tx/rx and clear interrupts */
1045 status = hw->mac.ops.stop_adapter(hw);
1046 if (status != IXGBE_SUCCESS)
1049 /* flush pending Tx transactions */
1050 ixgbe_clear_tx_pending(hw);
1052 /* PHY ops must be identified and initialized prior to reset */
1054 /* Identify PHY and related function pointers */
1055 status = hw->phy.ops.init(hw);
1057 if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
1060 /* Setup SFP module if there is one present. */
1061 if (hw->phy.sfp_setup_needed) {
1062 status = hw->mac.ops.setup_sfp(hw);
1063 hw->phy.sfp_setup_needed = FALSE;
1066 if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
1070 if (hw->phy.reset_disable == FALSE && hw->phy.ops.reset != NULL)
1071 hw->phy.ops.reset(hw);
1073 /* remember AUTOC from before we reset */
1074 curr_lms = IXGBE_READ_REG(hw, IXGBE_AUTOC) & IXGBE_AUTOC_LMS_MASK;
1078 * Issue global reset to the MAC. Needs to be SW reset if link is up.
1079 * If link reset is used when link is up, it might reset the PHY when
1080 * mng is using it. If link is down or the flag to force full link
1081 * reset is set, then perform link reset.
1083 ctrl = IXGBE_CTRL_LNK_RST;
1084 if (!hw->force_full_reset) {
1085 hw->mac.ops.check_link(hw, &link_speed, &link_up, FALSE);
1087 ctrl = IXGBE_CTRL_RST;
1090 ctrl |= IXGBE_READ_REG(hw, IXGBE_CTRL);
1091 IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
1092 IXGBE_WRITE_FLUSH(hw);
1094 /* Poll for reset bit to self-clear meaning reset is complete */
1095 for (i = 0; i < 10; i++) {
1097 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
1098 if (!(ctrl & IXGBE_CTRL_RST_MASK))
1102 if (ctrl & IXGBE_CTRL_RST_MASK) {
1103 status = IXGBE_ERR_RESET_FAILED;
1104 DEBUGOUT("Reset polling failed to complete.\n");
1110 * Double resets are required for recovery from certain error
1111 * conditions. Between resets, it is necessary to stall to
1112 * allow time for any pending HW events to complete.
1114 if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
1115 hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
1120 * Store the original AUTOC/AUTOC2 values if they have not been
1121 * stored off yet. Otherwise restore the stored original
1122 * values since the reset operation sets back to defaults.
1124 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
1125 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
1127 /* Enable link if disabled in NVM */
1128 if (autoc2 & IXGBE_AUTOC2_LINK_DISABLE_MASK) {
1129 autoc2 &= ~IXGBE_AUTOC2_LINK_DISABLE_MASK;
1130 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2);
1131 IXGBE_WRITE_FLUSH(hw);
1134 if (hw->mac.orig_link_settings_stored == FALSE) {
1135 hw->mac.orig_autoc = autoc;
1136 hw->mac.orig_autoc2 = autoc2;
1137 hw->mac.orig_link_settings_stored = TRUE;
1140 /* If MNG FW is running on a multi-speed device that
1141 * doesn't autoneg with out driver support we need to
1142 * leave LMS in the state it was before we MAC reset.
1143 * Likewise if we support WoL we don't want change the
1146 if ((hw->phy.multispeed_fiber && ixgbe_mng_enabled(hw)) ||
1148 hw->mac.orig_autoc =
1149 (hw->mac.orig_autoc & ~IXGBE_AUTOC_LMS_MASK) |
1152 if (autoc != hw->mac.orig_autoc) {
1153 status = hw->mac.ops.prot_autoc_write(hw,
1156 if (status != IXGBE_SUCCESS)
1160 if ((autoc2 & IXGBE_AUTOC2_UPPER_MASK) !=
1161 (hw->mac.orig_autoc2 & IXGBE_AUTOC2_UPPER_MASK)) {
1162 autoc2 &= ~IXGBE_AUTOC2_UPPER_MASK;
1163 autoc2 |= (hw->mac.orig_autoc2 &
1164 IXGBE_AUTOC2_UPPER_MASK);
1165 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2);
1169 /* Store the permanent mac address */
1170 hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
1173 * Store MAC address from RAR0, clear receive address registers, and
1174 * clear the multicast table. Also reset num_rar_entries to 128,
1175 * since we modify this value when programming the SAN MAC address.
1177 hw->mac.num_rar_entries = 128;
1178 hw->mac.ops.init_rx_addrs(hw);
1180 /* Store the permanent SAN mac address */
1181 hw->mac.ops.get_san_mac_addr(hw, hw->mac.san_addr);
1183 /* Add the SAN MAC address to the RAR only if it's a valid address */
1184 if (ixgbe_validate_mac_addr(hw->mac.san_addr) == 0) {
1185 /* Save the SAN MAC RAR index */
1186 hw->mac.san_mac_rar_index = hw->mac.num_rar_entries - 1;
1188 hw->mac.ops.set_rar(hw, hw->mac.san_mac_rar_index,
1189 hw->mac.san_addr, 0, IXGBE_RAH_AV);
1191 /* clear VMDq pool/queue selection for this RAR */
1192 hw->mac.ops.clear_vmdq(hw, hw->mac.san_mac_rar_index,
1193 IXGBE_CLEAR_VMDQ_ALL);
1195 /* Reserve the last RAR for the SAN MAC address */
1196 hw->mac.num_rar_entries--;
1199 /* Store the alternative WWNN/WWPN prefix */
1200 hw->mac.ops.get_wwn_prefix(hw, &hw->mac.wwnn_prefix,
1201 &hw->mac.wwpn_prefix);
1208 * ixgbe_fdir_check_cmd_complete - poll to check whether FDIRCMD is complete
1209 * @hw: pointer to hardware structure
1210 * @fdircmd: current value of FDIRCMD register
1212 static s32 ixgbe_fdir_check_cmd_complete(struct ixgbe_hw *hw, u32 *fdircmd)
1216 for (i = 0; i < IXGBE_FDIRCMD_CMD_POLL; i++) {
1217 *fdircmd = IXGBE_READ_REG(hw, IXGBE_FDIRCMD);
1218 if (!(*fdircmd & IXGBE_FDIRCMD_CMD_MASK))
1219 return IXGBE_SUCCESS;
1223 return IXGBE_ERR_FDIR_CMD_INCOMPLETE;
1227 * ixgbe_reinit_fdir_tables_82599 - Reinitialize Flow Director tables.
1228 * @hw: pointer to hardware structure
1230 s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw)
1234 u32 fdirctrl = IXGBE_READ_REG(hw, IXGBE_FDIRCTRL);
1236 fdirctrl &= ~IXGBE_FDIRCTRL_INIT_DONE;
1238 DEBUGFUNC("ixgbe_reinit_fdir_tables_82599");
1241 * Before starting reinitialization process,
1242 * FDIRCMD.CMD must be zero.
1244 err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
1246 DEBUGOUT("Flow Director previous command did not complete, aborting table re-initialization.\n");
1250 IXGBE_WRITE_REG(hw, IXGBE_FDIRFREE, 0);
1251 IXGBE_WRITE_FLUSH(hw);
1253 * 82599 adapters flow director init flow cannot be restarted,
1254 * Workaround 82599 silicon errata by performing the following steps
1255 * before re-writing the FDIRCTRL control register with the same value.
1256 * - write 1 to bit 8 of FDIRCMD register &
1257 * - write 0 to bit 8 of FDIRCMD register
1259 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1260 (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) |
1261 IXGBE_FDIRCMD_CLEARHT));
1262 IXGBE_WRITE_FLUSH(hw);
1263 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1264 (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) &
1265 ~IXGBE_FDIRCMD_CLEARHT));
1266 IXGBE_WRITE_FLUSH(hw);
1268 * Clear FDIR Hash register to clear any leftover hashes
1269 * waiting to be programmed.
1271 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, 0x00);
1272 IXGBE_WRITE_FLUSH(hw);
1274 IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
1275 IXGBE_WRITE_FLUSH(hw);
1277 /* Poll init-done after we write FDIRCTRL register */
1278 for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
1279 if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) &
1280 IXGBE_FDIRCTRL_INIT_DONE)
1284 if (i >= IXGBE_FDIR_INIT_DONE_POLL) {
1285 DEBUGOUT("Flow Director Signature poll time exceeded!\n");
1286 return IXGBE_ERR_FDIR_REINIT_FAILED;
1289 /* Clear FDIR statistics registers (read to clear) */
1290 IXGBE_READ_REG(hw, IXGBE_FDIRUSTAT);
1291 IXGBE_READ_REG(hw, IXGBE_FDIRFSTAT);
1292 IXGBE_READ_REG(hw, IXGBE_FDIRMATCH);
1293 IXGBE_READ_REG(hw, IXGBE_FDIRMISS);
1294 IXGBE_READ_REG(hw, IXGBE_FDIRLEN);
1296 return IXGBE_SUCCESS;
1300 * ixgbe_fdir_enable_82599 - Initialize Flow Director control registers
1301 * @hw: pointer to hardware structure
1302 * @fdirctrl: value to write to flow director control register
1304 static void ixgbe_fdir_enable_82599(struct ixgbe_hw *hw, u32 fdirctrl)
1308 DEBUGFUNC("ixgbe_fdir_enable_82599");
1310 /* Prime the keys for hashing */
1311 IXGBE_WRITE_REG(hw, IXGBE_FDIRHKEY, IXGBE_ATR_BUCKET_HASH_KEY);
1312 IXGBE_WRITE_REG(hw, IXGBE_FDIRSKEY, IXGBE_ATR_SIGNATURE_HASH_KEY);
1315 * Poll init-done after we write the register. Estimated times:
1316 * 10G: PBALLOC = 11b, timing is 60us
1317 * 1G: PBALLOC = 11b, timing is 600us
1318 * 100M: PBALLOC = 11b, timing is 6ms
1320 * Multiple these timings by 4 if under full Rx load
1322 * So we'll poll for IXGBE_FDIR_INIT_DONE_POLL times, sleeping for
1323 * 1 msec per poll time. If we're at line rate and drop to 100M, then
1324 * this might not finish in our poll time, but we can live with that
1327 IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
1328 IXGBE_WRITE_FLUSH(hw);
1329 for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
1330 if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) &
1331 IXGBE_FDIRCTRL_INIT_DONE)
1336 if (i >= IXGBE_FDIR_INIT_DONE_POLL)
1337 DEBUGOUT("Flow Director poll time exceeded!\n");
1341 * ixgbe_init_fdir_signature_82599 - Initialize Flow Director signature filters
1342 * @hw: pointer to hardware structure
1343 * @fdirctrl: value to write to flow director control register, initially
1344 * contains just the value of the Rx packet buffer allocation
1346 s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 fdirctrl)
1348 DEBUGFUNC("ixgbe_init_fdir_signature_82599");
1351 * Continue setup of fdirctrl register bits:
1352 * Move the flexible bytes to use the ethertype - shift 6 words
1353 * Set the maximum length per hash bucket to 0xA filters
1354 * Send interrupt when 64 filters are left
1356 fdirctrl |= (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT) |
1357 (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT) |
1358 (4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT);
1360 /* write hashes and fdirctrl register, poll for completion */
1361 ixgbe_fdir_enable_82599(hw, fdirctrl);
1363 return IXGBE_SUCCESS;
1367 * ixgbe_init_fdir_perfect_82599 - Initialize Flow Director perfect filters
1368 * @hw: pointer to hardware structure
1369 * @fdirctrl: value to write to flow director control register, initially
1370 * contains just the value of the Rx packet buffer allocation
1371 * @cloud_mode: TRUE - cloud mode, FALSE - other mode
1373 s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 fdirctrl,
1376 DEBUGFUNC("ixgbe_init_fdir_perfect_82599");
1379 * Continue setup of fdirctrl register bits:
1380 * Turn perfect match filtering on
1381 * Report hash in RSS field of Rx wb descriptor
1382 * Initialize the drop queue to queue 127
1383 * Move the flexible bytes to use the ethertype - shift 6 words
1384 * Set the maximum length per hash bucket to 0xA filters
1385 * Send interrupt when 64 (0x4 * 16) filters are left
1387 fdirctrl |= IXGBE_FDIRCTRL_PERFECT_MATCH |
1388 IXGBE_FDIRCTRL_REPORT_STATUS |
1389 (IXGBE_FDIR_DROP_QUEUE << IXGBE_FDIRCTRL_DROP_Q_SHIFT) |
1390 (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT) |
1391 (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT) |
1392 (4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT);
1395 fdirctrl |=(IXGBE_FDIRCTRL_FILTERMODE_CLOUD <<
1396 IXGBE_FDIRCTRL_FILTERMODE_SHIFT);
1398 /* write hashes and fdirctrl register, poll for completion */
1399 ixgbe_fdir_enable_82599(hw, fdirctrl);
1401 return IXGBE_SUCCESS;
1405 * ixgbe_set_fdir_drop_queue_82599 - Set Flow Director drop queue
1406 * @hw: pointer to hardware structure
1407 * @dropqueue: Rx queue index used for the dropped packets
1409 void ixgbe_set_fdir_drop_queue_82599(struct ixgbe_hw *hw, u8 dropqueue)
1413 DEBUGFUNC("ixgbe_set_fdir_drop_queue_82599");
1414 /* Clear init done bit and drop queue field */
1415 fdirctrl = IXGBE_READ_REG(hw, IXGBE_FDIRCTRL);
1416 fdirctrl &= ~(IXGBE_FDIRCTRL_DROP_Q_MASK | IXGBE_FDIRCTRL_INIT_DONE);
1418 /* Set drop queue */
1419 fdirctrl |= (dropqueue << IXGBE_FDIRCTRL_DROP_Q_SHIFT);
1420 if ((hw->mac.type == ixgbe_mac_X550) ||
1421 (hw->mac.type == ixgbe_mac_X550EM_x) ||
1422 (hw->mac.type == ixgbe_mac_X550EM_a))
1423 fdirctrl |= IXGBE_FDIRCTRL_DROP_NO_MATCH;
1425 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1426 (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) |
1427 IXGBE_FDIRCMD_CLEARHT));
1428 IXGBE_WRITE_FLUSH(hw);
1429 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1430 (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) &
1431 ~IXGBE_FDIRCMD_CLEARHT));
1432 IXGBE_WRITE_FLUSH(hw);
1434 /* write hashes and fdirctrl register, poll for completion */
1435 ixgbe_fdir_enable_82599(hw, fdirctrl);
1439 * These defines allow us to quickly generate all of the necessary instructions
1440 * in the function below by simply calling out IXGBE_COMPUTE_SIG_HASH_ITERATION
1441 * for values 0 through 15
1443 #define IXGBE_ATR_COMMON_HASH_KEY \
1444 (IXGBE_ATR_BUCKET_HASH_KEY & IXGBE_ATR_SIGNATURE_HASH_KEY)
1445 #define IXGBE_COMPUTE_SIG_HASH_ITERATION(_n) \
1448 if (IXGBE_ATR_COMMON_HASH_KEY & (0x01 << n)) \
1449 common_hash ^= lo_hash_dword >> n; \
1450 else if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << n)) \
1451 bucket_hash ^= lo_hash_dword >> n; \
1452 else if (IXGBE_ATR_SIGNATURE_HASH_KEY & (0x01 << n)) \
1453 sig_hash ^= lo_hash_dword << (16 - n); \
1454 if (IXGBE_ATR_COMMON_HASH_KEY & (0x01 << (n + 16))) \
1455 common_hash ^= hi_hash_dword >> n; \
1456 else if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << (n + 16))) \
1457 bucket_hash ^= hi_hash_dword >> n; \
1458 else if (IXGBE_ATR_SIGNATURE_HASH_KEY & (0x01 << (n + 16))) \
1459 sig_hash ^= hi_hash_dword << (16 - n); \
1463 * ixgbe_atr_compute_sig_hash_82599 - Compute the signature hash
1464 * @stream: input bitstream to compute the hash on
1466 * This function is almost identical to the function above but contains
1467 * several optimizations such as unwinding all of the loops, letting the
1468 * compiler work out all of the conditional ifs since the keys are static
1469 * defines, and computing two keys at once since the hashed dword stream
1470 * will be the same for both keys.
1472 u32 ixgbe_atr_compute_sig_hash_82599(union ixgbe_atr_hash_dword input,
1473 union ixgbe_atr_hash_dword common)
1475 u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
1476 u32 sig_hash = 0, bucket_hash = 0, common_hash = 0;
1478 /* record the flow_vm_vlan bits as they are a key part to the hash */
1479 flow_vm_vlan = IXGBE_NTOHL(input.dword);
1481 /* generate common hash dword */
1482 hi_hash_dword = IXGBE_NTOHL(common.dword);
1484 /* low dword is word swapped version of common */
1485 lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
1487 /* apply flow ID/VM pool/VLAN ID bits to hash words */
1488 hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);
1490 /* Process bits 0 and 16 */
1491 IXGBE_COMPUTE_SIG_HASH_ITERATION(0);
1494 * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
1495 * delay this because bit 0 of the stream should not be processed
1496 * so we do not add the VLAN until after bit 0 was processed
1498 lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);
1500 /* Process remaining 30 bit of the key */
1501 IXGBE_COMPUTE_SIG_HASH_ITERATION(1);
1502 IXGBE_COMPUTE_SIG_HASH_ITERATION(2);
1503 IXGBE_COMPUTE_SIG_HASH_ITERATION(3);
1504 IXGBE_COMPUTE_SIG_HASH_ITERATION(4);
1505 IXGBE_COMPUTE_SIG_HASH_ITERATION(5);
1506 IXGBE_COMPUTE_SIG_HASH_ITERATION(6);
1507 IXGBE_COMPUTE_SIG_HASH_ITERATION(7);
1508 IXGBE_COMPUTE_SIG_HASH_ITERATION(8);
1509 IXGBE_COMPUTE_SIG_HASH_ITERATION(9);
1510 IXGBE_COMPUTE_SIG_HASH_ITERATION(10);
1511 IXGBE_COMPUTE_SIG_HASH_ITERATION(11);
1512 IXGBE_COMPUTE_SIG_HASH_ITERATION(12);
1513 IXGBE_COMPUTE_SIG_HASH_ITERATION(13);
1514 IXGBE_COMPUTE_SIG_HASH_ITERATION(14);
1515 IXGBE_COMPUTE_SIG_HASH_ITERATION(15);
1517 /* combine common_hash result with signature and bucket hashes */
1518 bucket_hash ^= common_hash;
1519 bucket_hash &= IXGBE_ATR_HASH_MASK;
1521 sig_hash ^= common_hash << 16;
1522 sig_hash &= IXGBE_ATR_HASH_MASK << 16;
1524 /* return completed signature hash */
1525 return sig_hash ^ bucket_hash;
1529 * ixgbe_atr_add_signature_filter_82599 - Adds a signature hash filter
1530 * @hw: pointer to hardware structure
1531 * @input: unique input dword
1532 * @common: compressed common input dword
1533 * @queue: queue index to direct traffic to
1535 * Note that the tunnel bit in input must not be set when the hardware
1536 * tunneling support does not exist.
1538 void ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
1539 union ixgbe_atr_hash_dword input,
1540 union ixgbe_atr_hash_dword common,
1548 DEBUGFUNC("ixgbe_fdir_add_signature_filter_82599");
1551 * Get the flow_type in order to program FDIRCMD properly
1552 * lowest 2 bits are FDIRCMD.L4TYPE, third lowest bit is FDIRCMD.IPV6
1553 * fifth is FDIRCMD.TUNNEL_FILTER
1555 tunnel = !!(input.formatted.flow_type & IXGBE_ATR_L4TYPE_TUNNEL_MASK);
1556 flow_type = input.formatted.flow_type &
1557 (IXGBE_ATR_L4TYPE_TUNNEL_MASK - 1);
1558 switch (flow_type) {
1559 case IXGBE_ATR_FLOW_TYPE_TCPV4:
1560 case IXGBE_ATR_FLOW_TYPE_UDPV4:
1561 case IXGBE_ATR_FLOW_TYPE_SCTPV4:
1562 case IXGBE_ATR_FLOW_TYPE_TCPV6:
1563 case IXGBE_ATR_FLOW_TYPE_UDPV6:
1564 case IXGBE_ATR_FLOW_TYPE_SCTPV6:
1567 DEBUGOUT(" Error on flow type input\n");
1571 /* configure FDIRCMD register */
1572 fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE |
1573 IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
1574 fdircmd |= (u32)flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
1575 fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
1577 fdircmd |= IXGBE_FDIRCMD_TUNNEL_FILTER;
1580 * The lower 32-bits of fdirhashcmd is for FDIRHASH, the upper 32-bits
1581 * is for FDIRCMD. Then do a 64-bit register write from FDIRHASH.
1583 fdirhashcmd = (u64)fdircmd << 32;
1584 fdirhashcmd |= ixgbe_atr_compute_sig_hash_82599(input, common);
1585 IXGBE_WRITE_REG64(hw, IXGBE_FDIRHASH, fdirhashcmd);
1587 DEBUGOUT2("Tx Queue=%x hash=%x\n", queue, (u32)fdirhashcmd);
1592 #define IXGBE_COMPUTE_BKT_HASH_ITERATION(_n) \
1595 if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << n)) \
1596 bucket_hash ^= lo_hash_dword >> n; \
1597 if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << (n + 16))) \
1598 bucket_hash ^= hi_hash_dword >> n; \
1602 * ixgbe_atr_compute_perfect_hash_82599 - Compute the perfect filter hash
1603 * @atr_input: input bitstream to compute the hash on
1604 * @input_mask: mask for the input bitstream
1606 * This function serves two main purposes. First it applies the input_mask
1607 * to the atr_input resulting in a cleaned up atr_input data stream.
1608 * Secondly it computes the hash and stores it in the bkt_hash field at
1609 * the end of the input byte stream. This way it will be available for
1610 * future use without needing to recompute the hash.
1612 void ixgbe_atr_compute_perfect_hash_82599(union ixgbe_atr_input *input,
1613 union ixgbe_atr_input *input_mask)
1616 u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
1617 u32 bucket_hash = 0;
1621 /* Apply masks to input data */
1622 for (i = 0; i < 14; i++)
1623 input->dword_stream[i] &= input_mask->dword_stream[i];
1625 /* record the flow_vm_vlan bits as they are a key part to the hash */
1626 flow_vm_vlan = IXGBE_NTOHL(input->dword_stream[0]);
1628 /* generate common hash dword */
1629 for (i = 1; i <= 13; i++)
1630 hi_dword ^= input->dword_stream[i];
1631 hi_hash_dword = IXGBE_NTOHL(hi_dword);
1633 /* low dword is word swapped version of common */
1634 lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
1636 /* apply flow ID/VM pool/VLAN ID bits to hash words */
1637 hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);
1639 /* Process bits 0 and 16 */
1640 IXGBE_COMPUTE_BKT_HASH_ITERATION(0);
1643 * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
1644 * delay this because bit 0 of the stream should not be processed
1645 * so we do not add the VLAN until after bit 0 was processed
1647 lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);
1649 /* Process remaining 30 bit of the key */
1650 for (i = 1; i <= 15; i++)
1651 IXGBE_COMPUTE_BKT_HASH_ITERATION(i);
1654 * Limit hash to 13 bits since max bucket count is 8K.
1655 * Store result at the end of the input stream.
1657 input->formatted.bkt_hash = bucket_hash & 0x1FFF;
1661 * ixgbe_get_fdirtcpm_82599 - generate a TCP port from atr_input_masks
1662 * @input_mask: mask to be bit swapped
1664 * The source and destination port masks for flow director are bit swapped
1665 * in that bit 15 effects bit 0, 14 effects 1, 13, 2 etc. In order to
1666 * generate a correctly swapped value we need to bit swap the mask and that
1667 * is what is accomplished by this function.
1669 static u32 ixgbe_get_fdirtcpm_82599(union ixgbe_atr_input *input_mask)
1671 u32 mask = IXGBE_NTOHS(input_mask->formatted.dst_port);
1672 mask <<= IXGBE_FDIRTCPM_DPORTM_SHIFT;
1673 mask |= IXGBE_NTOHS(input_mask->formatted.src_port);
1674 mask = ((mask & 0x55555555) << 1) | ((mask & 0xAAAAAAAA) >> 1);
1675 mask = ((mask & 0x33333333) << 2) | ((mask & 0xCCCCCCCC) >> 2);
1676 mask = ((mask & 0x0F0F0F0F) << 4) | ((mask & 0xF0F0F0F0) >> 4);
1677 return ((mask & 0x00FF00FF) << 8) | ((mask & 0xFF00FF00) >> 8);
1681 * These two macros are meant to address the fact that we have registers
1682 * that are either all or in part big-endian. As a result on big-endian
1683 * systems we will end up byte swapping the value to little-endian before
1684 * it is byte swapped again and written to the hardware in the original
1685 * big-endian format.
1687 #define IXGBE_STORE_AS_BE32(_value) \
1688 (((u32)(_value) >> 24) | (((u32)(_value) & 0x00FF0000) >> 8) | \
1689 (((u32)(_value) & 0x0000FF00) << 8) | ((u32)(_value) << 24))
1691 #define IXGBE_WRITE_REG_BE32(a, reg, value) \
1692 IXGBE_WRITE_REG((a), (reg), IXGBE_STORE_AS_BE32(IXGBE_NTOHL(value)))
1694 #define IXGBE_STORE_AS_BE16(_value) \
1695 IXGBE_NTOHS(((u16)(_value) >> 8) | ((u16)(_value) << 8))
1697 s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
1698 union ixgbe_atr_input *input_mask, bool cloud_mode)
1700 /* mask IPv6 since it is currently not supported */
1701 u32 fdirm = IXGBE_FDIRM_DIPv6;
1704 DEBUGFUNC("ixgbe_fdir_set_atr_input_mask_82599");
1707 * Program the relevant mask registers. If src/dst_port or src/dst_addr
1708 * are zero, then assume a full mask for that field. Also assume that
1709 * a VLAN of 0 is unspecified, so mask that out as well. L4type
1710 * cannot be masked out in this implementation.
1712 * This also assumes IPv4 only. IPv6 masking isn't supported at this
1716 /* verify bucket hash is cleared on hash generation */
1717 if (input_mask->formatted.bkt_hash)
1718 DEBUGOUT(" bucket hash should always be 0 in mask\n");
1720 /* Program FDIRM and verify partial masks */
1721 switch (input_mask->formatted.vm_pool & 0x7F) {
1723 fdirm |= IXGBE_FDIRM_POOL;
1727 DEBUGOUT(" Error on vm pool mask\n");
1728 return IXGBE_ERR_CONFIG;
1731 switch (input_mask->formatted.flow_type & IXGBE_ATR_L4TYPE_MASK) {
1733 fdirm |= IXGBE_FDIRM_L4P;
1734 if (input_mask->formatted.dst_port ||
1735 input_mask->formatted.src_port) {
1736 DEBUGOUT(" Error on src/dst port mask\n");
1737 return IXGBE_ERR_CONFIG;
1739 case IXGBE_ATR_L4TYPE_MASK:
1742 DEBUGOUT(" Error on flow type mask\n");
1743 return IXGBE_ERR_CONFIG;
1746 switch (IXGBE_NTOHS(input_mask->formatted.vlan_id) & 0xEFFF) {
1749 fdirm |= IXGBE_FDIRM_VLANID;
1752 /* mask VLAN priority */
1753 fdirm |= IXGBE_FDIRM_VLANP;
1756 /* mask VLAN ID only */
1757 fdirm |= IXGBE_FDIRM_VLANID;
1760 /* no VLAN fields masked */
1763 DEBUGOUT(" Error on VLAN mask\n");
1764 return IXGBE_ERR_CONFIG;
1767 switch (input_mask->formatted.flex_bytes & 0xFFFF) {
1769 /* Mask Flex Bytes */
1770 fdirm |= IXGBE_FDIRM_FLEX;
1775 DEBUGOUT(" Error on flexible byte mask\n");
1776 return IXGBE_ERR_CONFIG;
1780 fdirm |= IXGBE_FDIRM_L3P;
1781 fdirip6m = ((u32) 0xFFFFU << IXGBE_FDIRIP6M_DIPM_SHIFT);
1782 fdirip6m |= IXGBE_FDIRIP6M_ALWAYS_MASK;
1784 switch (input_mask->formatted.inner_mac[0] & 0xFF) {
1786 /* Mask inner MAC, fall through */
1787 fdirip6m |= IXGBE_FDIRIP6M_INNER_MAC;
1791 DEBUGOUT(" Error on inner_mac byte mask\n");
1792 return IXGBE_ERR_CONFIG;
1795 switch (input_mask->formatted.tni_vni & 0xFFFFFFFF) {
1798 fdirip6m |= IXGBE_FDIRIP6M_TNI_VNI;
1801 fdirip6m |= IXGBE_FDIRIP6M_TNI_VNI_24;
1806 DEBUGOUT(" Error on TNI/VNI byte mask\n");
1807 return IXGBE_ERR_CONFIG;
1810 switch (input_mask->formatted.tunnel_type & 0xFFFF) {
1812 /* Mask turnnel type, fall through */
1813 fdirip6m |= IXGBE_FDIRIP6M_TUNNEL_TYPE;
1817 DEBUGOUT(" Error on tunnel type byte mask\n");
1818 return IXGBE_ERR_CONFIG;
1820 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIP6M, fdirip6m);
1822 /* Set all bits in FDIRTCPM, FDIRUDPM, FDIRSCTPM,
1823 * FDIRSIP4M and FDIRDIP4M in cloud mode to allow
1824 * L3/L3 packets to tunnel.
1826 IXGBE_WRITE_REG(hw, IXGBE_FDIRTCPM, 0xFFFFFFFF);
1827 IXGBE_WRITE_REG(hw, IXGBE_FDIRUDPM, 0xFFFFFFFF);
1828 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRDIP4M, 0xFFFFFFFF);
1829 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIP4M, 0xFFFFFFFF);
1830 switch (hw->mac.type) {
1831 case ixgbe_mac_X550:
1832 case ixgbe_mac_X550EM_x:
1833 case ixgbe_mac_X550EM_a:
1834 IXGBE_WRITE_REG(hw, IXGBE_FDIRSCTPM, 0xFFFFFFFF);
1841 /* Now mask VM pool and destination IPv6 - bits 5 and 2 */
1842 IXGBE_WRITE_REG(hw, IXGBE_FDIRM, fdirm);
1845 /* store the TCP/UDP port masks, bit reversed from port
1847 fdirtcpm = ixgbe_get_fdirtcpm_82599(input_mask);
1849 /* write both the same so that UDP and TCP use the same mask */
1850 IXGBE_WRITE_REG(hw, IXGBE_FDIRTCPM, ~fdirtcpm);
1851 IXGBE_WRITE_REG(hw, IXGBE_FDIRUDPM, ~fdirtcpm);
1852 /* also use it for SCTP */
1853 switch (hw->mac.type) {
1854 case ixgbe_mac_X550:
1855 case ixgbe_mac_X550EM_x:
1856 case ixgbe_mac_X550EM_a:
1857 IXGBE_WRITE_REG(hw, IXGBE_FDIRSCTPM, ~fdirtcpm);
1863 /* store source and destination IP masks (big-enian) */
1864 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIP4M,
1865 ~input_mask->formatted.src_ip[0]);
1866 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRDIP4M,
1867 ~input_mask->formatted.dst_ip[0]);
1869 return IXGBE_SUCCESS;
1872 s32 ixgbe_fdir_write_perfect_filter_82599(struct ixgbe_hw *hw,
1873 union ixgbe_atr_input *input,
1874 u16 soft_id, u8 queue, bool cloud_mode)
1876 u32 fdirport, fdirvlan, fdirhash, fdircmd;
1877 u32 addr_low, addr_high;
1881 DEBUGFUNC("ixgbe_fdir_write_perfect_filter_82599");
1883 /* currently IPv6 is not supported, must be programmed with 0 */
1884 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(0),
1885 input->formatted.src_ip[0]);
1886 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(1),
1887 input->formatted.src_ip[1]);
1888 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(2),
1889 input->formatted.src_ip[2]);
1891 /* record the source address (big-endian) */
1892 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPSA,
1893 input->formatted.src_ip[0]);
1895 /* record the first 32 bits of the destination address
1897 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPDA,
1898 input->formatted.dst_ip[0]);
1900 /* record source and destination port (little-endian)*/
1901 fdirport = IXGBE_NTOHS(input->formatted.dst_port);
1902 fdirport <<= IXGBE_FDIRPORT_DESTINATION_SHIFT;
1903 fdirport |= IXGBE_NTOHS(input->formatted.src_port);
1904 IXGBE_WRITE_REG(hw, IXGBE_FDIRPORT, fdirport);
1907 /* record VLAN (little-endian) and flex_bytes(big-endian) */
1908 fdirvlan = IXGBE_STORE_AS_BE16(input->formatted.flex_bytes);
1909 fdirvlan <<= IXGBE_FDIRVLAN_FLEX_SHIFT;
1910 fdirvlan |= IXGBE_NTOHS(input->formatted.vlan_id);
1911 IXGBE_WRITE_REG(hw, IXGBE_FDIRVLAN, fdirvlan);
1914 if (input->formatted.tunnel_type != 0)
1915 cloud_type = 0x80000000;
1917 addr_low = ((u32)input->formatted.inner_mac[0] |
1918 ((u32)input->formatted.inner_mac[1] << 8) |
1919 ((u32)input->formatted.inner_mac[2] << 16) |
1920 ((u32)input->formatted.inner_mac[3] << 24));
1921 addr_high = ((u32)input->formatted.inner_mac[4] |
1922 ((u32)input->formatted.inner_mac[5] << 8));
1923 cloud_type |= addr_high;
1924 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(0), addr_low);
1925 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(1), cloud_type);
1926 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(2), input->formatted.tni_vni);
1929 /* configure FDIRHASH register */
1930 fdirhash = input->formatted.bkt_hash;
1931 fdirhash |= soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT;
1932 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
1935 * flush all previous writes to make certain registers are
1936 * programmed prior to issuing the command
1938 IXGBE_WRITE_FLUSH(hw);
1940 /* configure FDIRCMD register */
1941 fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE |
1942 IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
1943 if (queue == IXGBE_FDIR_DROP_QUEUE)
1944 fdircmd |= IXGBE_FDIRCMD_DROP;
1945 if (input->formatted.flow_type & IXGBE_ATR_L4TYPE_TUNNEL_MASK)
1946 fdircmd |= IXGBE_FDIRCMD_TUNNEL_FILTER;
1947 fdircmd |= input->formatted.flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
1948 fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
1949 fdircmd |= (u32)input->formatted.vm_pool << IXGBE_FDIRCMD_VT_POOL_SHIFT;
1951 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, fdircmd);
1952 err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
1954 DEBUGOUT("Flow Director command did not complete!\n");
1958 return IXGBE_SUCCESS;
1961 s32 ixgbe_fdir_erase_perfect_filter_82599(struct ixgbe_hw *hw,
1962 union ixgbe_atr_input *input,
1969 /* configure FDIRHASH register */
1970 fdirhash = input->formatted.bkt_hash;
1971 fdirhash |= soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT;
1972 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
1974 /* flush hash to HW */
1975 IXGBE_WRITE_FLUSH(hw);
1977 /* Query if filter is present */
1978 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, IXGBE_FDIRCMD_CMD_QUERY_REM_FILT);
1980 err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
1982 DEBUGOUT("Flow Director command did not complete!\n");
1986 /* if filter exists in hardware then remove it */
1987 if (fdircmd & IXGBE_FDIRCMD_FILTER_VALID) {
1988 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
1989 IXGBE_WRITE_FLUSH(hw);
1990 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1991 IXGBE_FDIRCMD_CMD_REMOVE_FLOW);
1994 return IXGBE_SUCCESS;
1998 * ixgbe_fdir_add_perfect_filter_82599 - Adds a perfect filter
1999 * @hw: pointer to hardware structure
2000 * @input: input bitstream
2001 * @input_mask: mask for the input bitstream
2002 * @soft_id: software index for the filters
2003 * @queue: queue index to direct traffic to
2005 * Note that the caller to this function must lock before calling, since the
2006 * hardware writes must be protected from one another.
2008 s32 ixgbe_fdir_add_perfect_filter_82599(struct ixgbe_hw *hw,
2009 union ixgbe_atr_input *input,
2010 union ixgbe_atr_input *input_mask,
2011 u16 soft_id, u8 queue, bool cloud_mode)
2013 s32 err = IXGBE_ERR_CONFIG;
2015 DEBUGFUNC("ixgbe_fdir_add_perfect_filter_82599");
2018 * Check flow_type formatting, and bail out before we touch the hardware
2019 * if there's a configuration issue
2021 switch (input->formatted.flow_type) {
2022 case IXGBE_ATR_FLOW_TYPE_IPV4:
2023 case IXGBE_ATR_FLOW_TYPE_TUNNELED_IPV4:
2024 input_mask->formatted.flow_type = IXGBE_ATR_L4TYPE_IPV6_MASK;
2025 if (input->formatted.dst_port || input->formatted.src_port) {
2026 DEBUGOUT(" Error on src/dst port\n");
2027 return IXGBE_ERR_CONFIG;
2030 case IXGBE_ATR_FLOW_TYPE_SCTPV4:
2031 case IXGBE_ATR_FLOW_TYPE_TUNNELED_SCTPV4:
2032 if (input->formatted.dst_port || input->formatted.src_port) {
2033 DEBUGOUT(" Error on src/dst port\n");
2034 return IXGBE_ERR_CONFIG;
2037 case IXGBE_ATR_FLOW_TYPE_TCPV4:
2038 case IXGBE_ATR_FLOW_TYPE_TUNNELED_TCPV4:
2039 case IXGBE_ATR_FLOW_TYPE_UDPV4:
2040 case IXGBE_ATR_FLOW_TYPE_TUNNELED_UDPV4:
2041 input_mask->formatted.flow_type = IXGBE_ATR_L4TYPE_IPV6_MASK |
2042 IXGBE_ATR_L4TYPE_MASK;
2045 DEBUGOUT(" Error on flow type input\n");
2049 /* program input mask into the HW */
2050 err = ixgbe_fdir_set_input_mask_82599(hw, input_mask, cloud_mode);
2054 /* apply mask and compute/store hash */
2055 ixgbe_atr_compute_perfect_hash_82599(input, input_mask);
2057 /* program filters to filter memory */
2058 return ixgbe_fdir_write_perfect_filter_82599(hw, input,
2059 soft_id, queue, cloud_mode);
2063 * ixgbe_read_analog_reg8_82599 - Reads 8 bit Omer analog register
2064 * @hw: pointer to hardware structure
2065 * @reg: analog register to read
2068 * Performs read operation to Omer analog register specified.
2070 s32 ixgbe_read_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 *val)
2074 DEBUGFUNC("ixgbe_read_analog_reg8_82599");
2076 IXGBE_WRITE_REG(hw, IXGBE_CORECTL, IXGBE_CORECTL_WRITE_CMD |
2078 IXGBE_WRITE_FLUSH(hw);
2080 core_ctl = IXGBE_READ_REG(hw, IXGBE_CORECTL);
2081 *val = (u8)core_ctl;
2083 return IXGBE_SUCCESS;
2087 * ixgbe_write_analog_reg8_82599 - Writes 8 bit Omer analog register
2088 * @hw: pointer to hardware structure
2089 * @reg: atlas register to write
2090 * @val: value to write
2092 * Performs write operation to Omer analog register specified.
2094 s32 ixgbe_write_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 val)
2098 DEBUGFUNC("ixgbe_write_analog_reg8_82599");
2100 core_ctl = (reg << 8) | val;
2101 IXGBE_WRITE_REG(hw, IXGBE_CORECTL, core_ctl);
2102 IXGBE_WRITE_FLUSH(hw);
2105 return IXGBE_SUCCESS;
2109 * ixgbe_start_hw_82599 - Prepare hardware for Tx/Rx
2110 * @hw: pointer to hardware structure
2112 * Starts the hardware using the generic start_hw function
2113 * and the generation start_hw function.
2114 * Then performs revision-specific operations, if any.
2116 s32 ixgbe_start_hw_82599(struct ixgbe_hw *hw)
2118 s32 ret_val = IXGBE_SUCCESS;
2120 DEBUGFUNC("ixgbe_start_hw_82599");
2122 ret_val = ixgbe_start_hw_generic(hw);
2123 if (ret_val != IXGBE_SUCCESS)
2126 ret_val = ixgbe_start_hw_gen2(hw);
2127 if (ret_val != IXGBE_SUCCESS)
2130 /* We need to run link autotry after the driver loads */
2131 hw->mac.autotry_restart = TRUE;
2133 if (ret_val == IXGBE_SUCCESS)
2134 ret_val = ixgbe_verify_fw_version_82599(hw);
2140 * ixgbe_identify_phy_82599 - Get physical layer module
2141 * @hw: pointer to hardware structure
2143 * Determines the physical layer module found on the current adapter.
2144 * If PHY already detected, maintains current PHY type in hw struct,
2145 * otherwise executes the PHY detection routine.
2147 s32 ixgbe_identify_phy_82599(struct ixgbe_hw *hw)
2151 DEBUGFUNC("ixgbe_identify_phy_82599");
2153 /* Detect PHY if not unknown - returns success if already detected. */
2154 status = ixgbe_identify_phy_generic(hw);
2155 if (status != IXGBE_SUCCESS) {
2156 /* 82599 10GBASE-T requires an external PHY */
2157 if (hw->mac.ops.get_media_type(hw) == ixgbe_media_type_copper)
2160 status = ixgbe_identify_module_generic(hw);
2163 /* Set PHY type none if no PHY detected */
2164 if (hw->phy.type == ixgbe_phy_unknown) {
2165 hw->phy.type = ixgbe_phy_none;
2166 return IXGBE_SUCCESS;
2169 /* Return error if SFP module has been detected but is not supported */
2170 if (hw->phy.type == ixgbe_phy_sfp_unsupported)
2171 return IXGBE_ERR_SFP_NOT_SUPPORTED;
2177 * ixgbe_get_supported_physical_layer_82599 - Returns physical layer type
2178 * @hw: pointer to hardware structure
2180 * Determines physical layer capabilities of the current configuration.
2182 u64 ixgbe_get_supported_physical_layer_82599(struct ixgbe_hw *hw)
2184 u64 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
2185 u32 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
2186 u32 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
2187 u32 pma_pmd_10g_serial = autoc2 & IXGBE_AUTOC2_10G_SERIAL_PMA_PMD_MASK;
2188 u32 pma_pmd_10g_parallel = autoc & IXGBE_AUTOC_10G_PMA_PMD_MASK;
2189 u32 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;
2190 u16 ext_ability = 0;
2192 DEBUGFUNC("ixgbe_get_support_physical_layer_82599");
2194 hw->phy.ops.identify(hw);
2196 switch (hw->phy.type) {
2198 case ixgbe_phy_cu_unknown:
2199 hw->phy.ops.read_reg(hw, IXGBE_MDIO_PHY_EXT_ABILITY,
2200 IXGBE_MDIO_PMA_PMD_DEV_TYPE, &ext_ability);
2201 if (ext_ability & IXGBE_MDIO_PHY_10GBASET_ABILITY)
2202 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_T;
2203 if (ext_ability & IXGBE_MDIO_PHY_1000BASET_ABILITY)
2204 physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_T;
2205 if (ext_ability & IXGBE_MDIO_PHY_100BASETX_ABILITY)
2206 physical_layer |= IXGBE_PHYSICAL_LAYER_100BASE_TX;
2212 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
2213 case IXGBE_AUTOC_LMS_1G_AN:
2214 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
2215 if (pma_pmd_1g == IXGBE_AUTOC_1G_KX_BX) {
2216 physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_KX |
2217 IXGBE_PHYSICAL_LAYER_1000BASE_BX;
2220 /* SFI mode so read SFP module */
2223 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
2224 if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_CX4)
2225 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_CX4;
2226 else if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_KX4)
2227 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
2228 else if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_XAUI)
2229 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_XAUI;
2232 case IXGBE_AUTOC_LMS_10G_SERIAL:
2233 if (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_KR) {
2234 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KR;
2236 } else if (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI)
2239 case IXGBE_AUTOC_LMS_KX4_KX_KR:
2240 case IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN:
2241 if (autoc & IXGBE_AUTOC_KX_SUPP)
2242 physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_KX;
2243 if (autoc & IXGBE_AUTOC_KX4_SUPP)
2244 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
2245 if (autoc & IXGBE_AUTOC_KR_SUPP)
2246 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KR;
2255 /* SFP check must be done last since DA modules are sometimes used to
2256 * test KR mode - we need to id KR mode correctly before SFP module.
2257 * Call identify_sfp because the pluggable module may have changed */
2258 physical_layer = ixgbe_get_supported_phy_sfp_layer_generic(hw);
2260 return physical_layer;
2264 * ixgbe_enable_rx_dma_82599 - Enable the Rx DMA unit on 82599
2265 * @hw: pointer to hardware structure
2266 * @regval: register value to write to RXCTRL
2268 * Enables the Rx DMA unit for 82599
2270 s32 ixgbe_enable_rx_dma_82599(struct ixgbe_hw *hw, u32 regval)
2273 DEBUGFUNC("ixgbe_enable_rx_dma_82599");
2276 * Workaround for 82599 silicon errata when enabling the Rx datapath.
2277 * If traffic is incoming before we enable the Rx unit, it could hang
2278 * the Rx DMA unit. Therefore, make sure the security engine is
2279 * completely disabled prior to enabling the Rx unit.
2282 hw->mac.ops.disable_sec_rx_path(hw);
2284 if (regval & IXGBE_RXCTRL_RXEN)
2285 ixgbe_enable_rx(hw);
2287 ixgbe_disable_rx(hw);
2289 hw->mac.ops.enable_sec_rx_path(hw);
2291 return IXGBE_SUCCESS;
2295 * ixgbe_verify_fw_version_82599 - verify FW version for 82599
2296 * @hw: pointer to hardware structure
2298 * Verifies that installed the firmware version is 0.6 or higher
2299 * for SFI devices. All 82599 SFI devices should have version 0.6 or higher.
2301 * Returns IXGBE_ERR_EEPROM_VERSION if the FW is not present or
2302 * if the FW version is not supported.
2304 static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw)
2306 s32 status = IXGBE_ERR_EEPROM_VERSION;
2307 u16 fw_offset, fw_ptp_cfg_offset;
2310 DEBUGFUNC("ixgbe_verify_fw_version_82599");
2312 /* firmware check is only necessary for SFI devices */
2313 if (hw->phy.media_type != ixgbe_media_type_fiber) {
2314 status = IXGBE_SUCCESS;
2315 goto fw_version_out;
2318 /* get the offset to the Firmware Module block */
2319 if (hw->eeprom.ops.read(hw, IXGBE_FW_PTR, &fw_offset)) {
2320 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
2321 "eeprom read at offset %d failed", IXGBE_FW_PTR);
2322 return IXGBE_ERR_EEPROM_VERSION;
2325 if ((fw_offset == 0) || (fw_offset == 0xFFFF))
2326 goto fw_version_out;
2328 /* get the offset to the Pass Through Patch Configuration block */
2329 if (hw->eeprom.ops.read(hw, (fw_offset +
2330 IXGBE_FW_PASSTHROUGH_PATCH_CONFIG_PTR),
2331 &fw_ptp_cfg_offset)) {
2332 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
2333 "eeprom read at offset %d failed",
2335 IXGBE_FW_PASSTHROUGH_PATCH_CONFIG_PTR);
2336 return IXGBE_ERR_EEPROM_VERSION;
2339 if ((fw_ptp_cfg_offset == 0) || (fw_ptp_cfg_offset == 0xFFFF))
2340 goto fw_version_out;
2342 /* get the firmware version */
2343 if (hw->eeprom.ops.read(hw, (fw_ptp_cfg_offset +
2344 IXGBE_FW_PATCH_VERSION_4), &fw_version)) {
2345 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
2346 "eeprom read at offset %d failed",
2347 fw_ptp_cfg_offset + IXGBE_FW_PATCH_VERSION_4);
2348 return IXGBE_ERR_EEPROM_VERSION;
2351 if (fw_version > 0x5)
2352 status = IXGBE_SUCCESS;
2359 * ixgbe_verify_lesm_fw_enabled_82599 - Checks LESM FW module state.
2360 * @hw: pointer to hardware structure
2362 * Returns TRUE if the LESM FW module is present and enabled. Otherwise
2363 * returns FALSE. Smart Speed must be disabled if LESM FW module is enabled.
2365 bool ixgbe_verify_lesm_fw_enabled_82599(struct ixgbe_hw *hw)
2367 bool lesm_enabled = FALSE;
2368 u16 fw_offset, fw_lesm_param_offset, fw_lesm_state;
2371 DEBUGFUNC("ixgbe_verify_lesm_fw_enabled_82599");
2373 /* get the offset to the Firmware Module block */
2374 status = hw->eeprom.ops.read(hw, IXGBE_FW_PTR, &fw_offset);
2376 if ((status != IXGBE_SUCCESS) ||
2377 (fw_offset == 0) || (fw_offset == 0xFFFF))
2380 /* get the offset to the LESM Parameters block */
2381 status = hw->eeprom.ops.read(hw, (fw_offset +
2382 IXGBE_FW_LESM_PARAMETERS_PTR),
2383 &fw_lesm_param_offset);
2385 if ((status != IXGBE_SUCCESS) ||
2386 (fw_lesm_param_offset == 0) || (fw_lesm_param_offset == 0xFFFF))
2389 /* get the LESM state word */
2390 status = hw->eeprom.ops.read(hw, (fw_lesm_param_offset +
2391 IXGBE_FW_LESM_STATE_1),
2394 if ((status == IXGBE_SUCCESS) &&
2395 (fw_lesm_state & IXGBE_FW_LESM_STATE_ENABLED))
2396 lesm_enabled = TRUE;
2399 return lesm_enabled;
2403 * ixgbe_read_eeprom_buffer_82599 - Read EEPROM word(s) using
2404 * fastest available method
2406 * @hw: pointer to hardware structure
2407 * @offset: offset of word in EEPROM to read
2408 * @words: number of words
2409 * @data: word(s) read from the EEPROM
2411 * Retrieves 16 bit word(s) read from EEPROM
2413 static s32 ixgbe_read_eeprom_buffer_82599(struct ixgbe_hw *hw, u16 offset,
2414 u16 words, u16 *data)
2416 struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
2417 s32 ret_val = IXGBE_ERR_CONFIG;
2419 DEBUGFUNC("ixgbe_read_eeprom_buffer_82599");
2422 * If EEPROM is detected and can be addressed using 14 bits,
2423 * use EERD otherwise use bit bang
2425 if ((eeprom->type == ixgbe_eeprom_spi) &&
2426 (offset + (words - 1) <= IXGBE_EERD_MAX_ADDR))
2427 ret_val = ixgbe_read_eerd_buffer_generic(hw, offset, words,
2430 ret_val = ixgbe_read_eeprom_buffer_bit_bang_generic(hw, offset,
2438 * ixgbe_read_eeprom_82599 - Read EEPROM word using
2439 * fastest available method
2441 * @hw: pointer to hardware structure
2442 * @offset: offset of word in the EEPROM to read
2443 * @data: word read from the EEPROM
2445 * Reads a 16 bit word from the EEPROM
2447 static s32 ixgbe_read_eeprom_82599(struct ixgbe_hw *hw,
2448 u16 offset, u16 *data)
2450 struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
2451 s32 ret_val = IXGBE_ERR_CONFIG;
2453 DEBUGFUNC("ixgbe_read_eeprom_82599");
2456 * If EEPROM is detected and can be addressed using 14 bits,
2457 * use EERD otherwise use bit bang
2459 if ((eeprom->type == ixgbe_eeprom_spi) &&
2460 (offset <= IXGBE_EERD_MAX_ADDR))
2461 ret_val = ixgbe_read_eerd_generic(hw, offset, data);
2463 ret_val = ixgbe_read_eeprom_bit_bang_generic(hw, offset, data);
2469 * ixgbe_reset_pipeline_82599 - perform pipeline reset
2471 * @hw: pointer to hardware structure
2473 * Reset pipeline by asserting Restart_AN together with LMS change to ensure
2474 * full pipeline reset. This function assumes the SW/FW lock is held.
2476 s32 ixgbe_reset_pipeline_82599(struct ixgbe_hw *hw)
2480 u32 i, autoc_reg, autoc2_reg;
2482 /* Enable link if disabled in NVM */
2483 autoc2_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
2484 if (autoc2_reg & IXGBE_AUTOC2_LINK_DISABLE_MASK) {
2485 autoc2_reg &= ~IXGBE_AUTOC2_LINK_DISABLE_MASK;
2486 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2_reg);
2487 IXGBE_WRITE_FLUSH(hw);
2490 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
2491 autoc_reg |= IXGBE_AUTOC_AN_RESTART;
2492 /* Write AUTOC register with toggled LMS[2] bit and Restart_AN */
2493 IXGBE_WRITE_REG(hw, IXGBE_AUTOC,
2494 autoc_reg ^ (0x4 << IXGBE_AUTOC_LMS_SHIFT));
2495 /* Wait for AN to leave state 0 */
2496 for (i = 0; i < 10; i++) {
2498 anlp1_reg = IXGBE_READ_REG(hw, IXGBE_ANLP1);
2499 if (anlp1_reg & IXGBE_ANLP1_AN_STATE_MASK)
2503 if (!(anlp1_reg & IXGBE_ANLP1_AN_STATE_MASK)) {
2504 DEBUGOUT("auto negotiation not completed\n");
2505 ret_val = IXGBE_ERR_RESET_FAILED;
2506 goto reset_pipeline_out;
2509 ret_val = IXGBE_SUCCESS;
2512 /* Write AUTOC register with original LMS field and Restart_AN */
2513 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
2514 IXGBE_WRITE_FLUSH(hw);
2520 * ixgbe_read_i2c_byte_82599 - Reads 8 bit word over I2C
2521 * @hw: pointer to hardware structure
2522 * @byte_offset: byte offset to read
2525 * Performs byte read operation to SFP module's EEPROM over I2C interface at
2526 * a specified device address.
2528 static s32 ixgbe_read_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
2529 u8 dev_addr, u8 *data)
2535 DEBUGFUNC("ixgbe_read_i2c_byte_82599");
2537 if (hw->phy.qsfp_shared_i2c_bus == TRUE) {
2538 /* Acquire I2C bus ownership. */
2539 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2540 esdp |= IXGBE_ESDP_SDP0;
2541 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2542 IXGBE_WRITE_FLUSH(hw);
2545 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2546 if (esdp & IXGBE_ESDP_SDP1)
2554 DEBUGOUT("Driver can't access resource,"
2555 " acquiring I2C bus timeout.\n");
2556 status = IXGBE_ERR_I2C;
2557 goto release_i2c_access;
2561 status = ixgbe_read_i2c_byte_generic(hw, byte_offset, dev_addr, data);
2565 if (hw->phy.qsfp_shared_i2c_bus == TRUE) {
2566 /* Release I2C bus ownership. */
2567 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2568 esdp &= ~IXGBE_ESDP_SDP0;
2569 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2570 IXGBE_WRITE_FLUSH(hw);
2577 * ixgbe_write_i2c_byte_82599 - Writes 8 bit word over I2C
2578 * @hw: pointer to hardware structure
2579 * @byte_offset: byte offset to write
2580 * @data: value to write
2582 * Performs byte write operation to SFP module's EEPROM over I2C interface at
2583 * a specified device address.
2585 static s32 ixgbe_write_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
2586 u8 dev_addr, u8 data)
2592 DEBUGFUNC("ixgbe_write_i2c_byte_82599");
2594 if (hw->phy.qsfp_shared_i2c_bus == TRUE) {
2595 /* Acquire I2C bus ownership. */
2596 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2597 esdp |= IXGBE_ESDP_SDP0;
2598 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2599 IXGBE_WRITE_FLUSH(hw);
2602 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2603 if (esdp & IXGBE_ESDP_SDP1)
2611 DEBUGOUT("Driver can't access resource,"
2612 " acquiring I2C bus timeout.\n");
2613 status = IXGBE_ERR_I2C;
2614 goto release_i2c_access;
2618 status = ixgbe_write_i2c_byte_generic(hw, byte_offset, dev_addr, data);
2622 if (hw->phy.qsfp_shared_i2c_bus == TRUE) {
2623 /* Release I2C bus ownership. */
2624 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2625 esdp &= ~IXGBE_ESDP_SDP0;
2626 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2627 IXGBE_WRITE_FLUSH(hw);