1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2001-2018
5 #include "ixgbe_type.h"
6 #include "ixgbe_82599.h"
8 #include "ixgbe_common.h"
11 #define IXGBE_82599_MAX_TX_QUEUES 128
12 #define IXGBE_82599_MAX_RX_QUEUES 128
13 #define IXGBE_82599_RAR_ENTRIES 128
14 #define IXGBE_82599_MC_TBL_SIZE 128
15 #define IXGBE_82599_VFT_TBL_SIZE 128
16 #define IXGBE_82599_RX_PB_SIZE 512
18 STATIC s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw,
19 ixgbe_link_speed speed,
20 bool autoneg_wait_to_complete);
21 STATIC s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw);
22 STATIC s32 ixgbe_read_eeprom_82599(struct ixgbe_hw *hw,
23 u16 offset, u16 *data);
24 STATIC s32 ixgbe_read_eeprom_buffer_82599(struct ixgbe_hw *hw, u16 offset,
25 u16 words, u16 *data);
26 STATIC s32 ixgbe_read_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
27 u8 dev_addr, u8 *data);
28 STATIC s32 ixgbe_write_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
29 u8 dev_addr, u8 data);
31 void ixgbe_init_mac_link_ops_82599(struct ixgbe_hw *hw)
33 struct ixgbe_mac_info *mac = &hw->mac;
35 DEBUGFUNC("ixgbe_init_mac_link_ops_82599");
38 * enable the laser control functions for SFP+ fiber
41 if ((mac->ops.get_media_type(hw) == ixgbe_media_type_fiber) &&
42 !ixgbe_mng_enabled(hw)) {
43 mac->ops.disable_tx_laser =
44 ixgbe_disable_tx_laser_multispeed_fiber;
45 mac->ops.enable_tx_laser =
46 ixgbe_enable_tx_laser_multispeed_fiber;
47 mac->ops.flap_tx_laser = ixgbe_flap_tx_laser_multispeed_fiber;
50 mac->ops.disable_tx_laser = NULL;
51 mac->ops.enable_tx_laser = NULL;
52 mac->ops.flap_tx_laser = NULL;
55 if (hw->phy.multispeed_fiber) {
56 /* Set up dual speed SFP+ support */
57 mac->ops.setup_link = ixgbe_setup_mac_link_multispeed_fiber;
58 mac->ops.setup_mac_link = ixgbe_setup_mac_link_82599;
59 mac->ops.set_rate_select_speed =
60 ixgbe_set_hard_rate_select_speed;
62 if ((ixgbe_get_media_type(hw) == ixgbe_media_type_backplane) &&
63 (hw->phy.smart_speed == ixgbe_smart_speed_auto ||
64 hw->phy.smart_speed == ixgbe_smart_speed_on) &&
65 !ixgbe_verify_lesm_fw_enabled_82599(hw)) {
66 mac->ops.setup_link = ixgbe_setup_mac_link_smartspeed;
68 mac->ops.setup_link = ixgbe_setup_mac_link_82599;
74 * ixgbe_init_phy_ops_82599 - PHY/SFP specific init
75 * @hw: pointer to hardware structure
77 * Initialize any function pointers that were not able to be
78 * set during init_shared_code because the PHY/SFP type was
79 * not known. Perform the SFP init if necessary.
82 s32 ixgbe_init_phy_ops_82599(struct ixgbe_hw *hw)
84 struct ixgbe_mac_info *mac = &hw->mac;
85 struct ixgbe_phy_info *phy = &hw->phy;
86 s32 ret_val = IXGBE_SUCCESS;
89 DEBUGFUNC("ixgbe_init_phy_ops_82599");
91 if (hw->device_id == IXGBE_DEV_ID_82599_QSFP_SF_QP) {
92 /* Store flag indicating I2C bus access control unit. */
93 hw->phy.qsfp_shared_i2c_bus = TRUE;
95 /* Initialize access to QSFP+ I2C bus */
96 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
97 esdp |= IXGBE_ESDP_SDP0_DIR;
98 esdp &= ~IXGBE_ESDP_SDP1_DIR;
99 esdp &= ~IXGBE_ESDP_SDP0;
100 esdp &= ~IXGBE_ESDP_SDP0_NATIVE;
101 esdp &= ~IXGBE_ESDP_SDP1_NATIVE;
102 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
103 IXGBE_WRITE_FLUSH(hw);
105 phy->ops.read_i2c_byte = ixgbe_read_i2c_byte_82599;
106 phy->ops.write_i2c_byte = ixgbe_write_i2c_byte_82599;
108 /* Identify the PHY or SFP module */
109 ret_val = phy->ops.identify(hw);
110 if (ret_val == IXGBE_ERR_SFP_NOT_SUPPORTED)
111 goto init_phy_ops_out;
113 /* Setup function pointers based on detected SFP module and speeds */
114 ixgbe_init_mac_link_ops_82599(hw);
115 if (hw->phy.sfp_type != ixgbe_sfp_type_unknown)
116 hw->phy.ops.reset = NULL;
118 /* If copper media, overwrite with copper function pointers */
119 if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper) {
120 mac->ops.setup_link = ixgbe_setup_copper_link_82599;
121 mac->ops.get_link_capabilities =
122 ixgbe_get_copper_link_capabilities_generic;
125 /* Set necessary function pointers based on PHY type */
126 switch (hw->phy.type) {
128 phy->ops.setup_link = ixgbe_setup_phy_link_tnx;
129 phy->ops.check_link = ixgbe_check_phy_link_tnx;
130 phy->ops.get_firmware_version =
131 ixgbe_get_phy_firmware_version_tnx;
140 s32 ixgbe_setup_sfp_modules_82599(struct ixgbe_hw *hw)
142 s32 ret_val = IXGBE_SUCCESS;
143 u16 list_offset, data_offset, data_value;
145 DEBUGFUNC("ixgbe_setup_sfp_modules_82599");
147 if (hw->phy.sfp_type != ixgbe_sfp_type_unknown) {
148 ixgbe_init_mac_link_ops_82599(hw);
150 hw->phy.ops.reset = NULL;
152 ret_val = ixgbe_get_sfp_init_sequence_offsets(hw, &list_offset,
154 if (ret_val != IXGBE_SUCCESS)
157 /* PHY config will finish before releasing the semaphore */
158 ret_val = hw->mac.ops.acquire_swfw_sync(hw,
159 IXGBE_GSSR_MAC_CSR_SM);
160 if (ret_val != IXGBE_SUCCESS) {
161 ret_val = IXGBE_ERR_SWFW_SYNC;
165 if (hw->eeprom.ops.read(hw, ++data_offset, &data_value))
167 while (data_value != 0xffff) {
168 IXGBE_WRITE_REG(hw, IXGBE_CORECTL, data_value);
169 IXGBE_WRITE_FLUSH(hw);
170 if (hw->eeprom.ops.read(hw, ++data_offset, &data_value))
174 /* Release the semaphore */
175 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
176 /* Delay obtaining semaphore again to allow FW access
177 * prot_autoc_write uses the semaphore too.
179 msec_delay(hw->eeprom.semaphore_delay);
181 /* Restart DSP and set SFI mode */
182 ret_val = hw->mac.ops.prot_autoc_write(hw,
183 hw->mac.orig_autoc | IXGBE_AUTOC_LMS_10G_SERIAL,
187 DEBUGOUT("sfp module setup not complete\n");
188 ret_val = IXGBE_ERR_SFP_SETUP_NOT_COMPLETE;
198 /* Release the semaphore */
199 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
200 /* Delay obtaining semaphore again to allow FW access */
201 msec_delay(hw->eeprom.semaphore_delay);
202 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
203 "eeprom read at offset %d failed", data_offset);
204 return IXGBE_ERR_PHY;
208 * prot_autoc_read_82599 - Hides MAC differences needed for AUTOC read
209 * @hw: pointer to hardware structure
210 * @locked: Return the if we locked for this read.
211 * @reg_val: Value we read from AUTOC
213 * For this part (82599) we need to wrap read-modify-writes with a possible
214 * FW/SW lock. It is assumed this lock will be freed with the next
215 * prot_autoc_write_82599().
217 s32 prot_autoc_read_82599(struct ixgbe_hw *hw, bool *locked, u32 *reg_val)
222 /* If LESM is on then we need to hold the SW/FW semaphore. */
223 if (ixgbe_verify_lesm_fw_enabled_82599(hw)) {
224 ret_val = hw->mac.ops.acquire_swfw_sync(hw,
225 IXGBE_GSSR_MAC_CSR_SM);
226 if (ret_val != IXGBE_SUCCESS)
227 return IXGBE_ERR_SWFW_SYNC;
232 *reg_val = IXGBE_READ_REG(hw, IXGBE_AUTOC);
233 return IXGBE_SUCCESS;
237 * prot_autoc_write_82599 - Hides MAC differences needed for AUTOC write
238 * @hw: pointer to hardware structure
239 * @autoc: value to write to AUTOC
240 * @locked: bool to indicate whether the SW/FW lock was already taken by
241 * previous proc_autoc_read_82599.
243 * This part (82599) may need to hold the SW/FW lock around all writes to
244 * AUTOC. Likewise after a write we need to do a pipeline reset.
246 s32 prot_autoc_write_82599(struct ixgbe_hw *hw, u32 autoc, bool locked)
248 s32 ret_val = IXGBE_SUCCESS;
250 /* Blocked by MNG FW so bail */
251 if (ixgbe_check_reset_blocked(hw))
254 /* We only need to get the lock if:
255 * - We didn't do it already (in the read part of a read-modify-write)
258 if (!locked && ixgbe_verify_lesm_fw_enabled_82599(hw)) {
259 ret_val = hw->mac.ops.acquire_swfw_sync(hw,
260 IXGBE_GSSR_MAC_CSR_SM);
261 if (ret_val != IXGBE_SUCCESS)
262 return IXGBE_ERR_SWFW_SYNC;
267 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc);
268 ret_val = ixgbe_reset_pipeline_82599(hw);
271 /* Free the SW/FW semaphore as we either grabbed it here or
272 * already had it when this function was called.
275 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
281 * ixgbe_init_ops_82599 - Inits func ptrs and MAC type
282 * @hw: pointer to hardware structure
284 * Initialize the function pointers and assign the MAC type for 82599.
285 * Does not touch the hardware.
288 s32 ixgbe_init_ops_82599(struct ixgbe_hw *hw)
290 struct ixgbe_mac_info *mac = &hw->mac;
291 struct ixgbe_phy_info *phy = &hw->phy;
292 struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
295 DEBUGFUNC("ixgbe_init_ops_82599");
297 ixgbe_init_phy_ops_generic(hw);
298 ret_val = ixgbe_init_ops_generic(hw);
301 phy->ops.identify = ixgbe_identify_phy_82599;
302 phy->ops.init = ixgbe_init_phy_ops_82599;
305 mac->ops.reset_hw = ixgbe_reset_hw_82599;
306 mac->ops.enable_relaxed_ordering = ixgbe_enable_relaxed_ordering_gen2;
307 mac->ops.get_media_type = ixgbe_get_media_type_82599;
308 mac->ops.get_supported_physical_layer =
309 ixgbe_get_supported_physical_layer_82599;
310 mac->ops.disable_sec_rx_path = ixgbe_disable_sec_rx_path_generic;
311 mac->ops.enable_sec_rx_path = ixgbe_enable_sec_rx_path_generic;
312 mac->ops.enable_rx_dma = ixgbe_enable_rx_dma_82599;
313 mac->ops.read_analog_reg8 = ixgbe_read_analog_reg8_82599;
314 mac->ops.write_analog_reg8 = ixgbe_write_analog_reg8_82599;
315 mac->ops.start_hw = ixgbe_start_hw_82599;
316 mac->ops.get_san_mac_addr = ixgbe_get_san_mac_addr_generic;
317 mac->ops.set_san_mac_addr = ixgbe_set_san_mac_addr_generic;
318 mac->ops.get_device_caps = ixgbe_get_device_caps_generic;
319 mac->ops.get_wwn_prefix = ixgbe_get_wwn_prefix_generic;
320 mac->ops.get_fcoe_boot_status = ixgbe_get_fcoe_boot_status_generic;
321 mac->ops.prot_autoc_read = prot_autoc_read_82599;
322 mac->ops.prot_autoc_write = prot_autoc_write_82599;
324 /* RAR, Multicast, VLAN */
325 mac->ops.set_vmdq = ixgbe_set_vmdq_generic;
326 mac->ops.set_vmdq_san_mac = ixgbe_set_vmdq_san_mac_generic;
327 mac->ops.clear_vmdq = ixgbe_clear_vmdq_generic;
328 mac->ops.insert_mac_addr = ixgbe_insert_mac_addr_generic;
329 mac->rar_highwater = 1;
330 mac->ops.set_vfta = ixgbe_set_vfta_generic;
331 mac->ops.set_vlvf = ixgbe_set_vlvf_generic;
332 mac->ops.clear_vfta = ixgbe_clear_vfta_generic;
333 mac->ops.init_uta_tables = ixgbe_init_uta_tables_generic;
334 mac->ops.setup_sfp = ixgbe_setup_sfp_modules_82599;
335 mac->ops.set_mac_anti_spoofing = ixgbe_set_mac_anti_spoofing;
336 mac->ops.set_vlan_anti_spoofing = ixgbe_set_vlan_anti_spoofing;
339 mac->ops.get_link_capabilities = ixgbe_get_link_capabilities_82599;
340 mac->ops.check_link = ixgbe_check_mac_link_generic;
341 mac->ops.setup_rxpba = ixgbe_set_rxpba_generic;
342 ixgbe_init_mac_link_ops_82599(hw);
344 mac->mcft_size = IXGBE_82599_MC_TBL_SIZE;
345 mac->vft_size = IXGBE_82599_VFT_TBL_SIZE;
346 mac->num_rar_entries = IXGBE_82599_RAR_ENTRIES;
347 mac->rx_pb_size = IXGBE_82599_RX_PB_SIZE;
348 mac->max_rx_queues = IXGBE_82599_MAX_RX_QUEUES;
349 mac->max_tx_queues = IXGBE_82599_MAX_TX_QUEUES;
350 mac->max_msix_vectors = ixgbe_get_pcie_msix_count_generic(hw);
352 mac->arc_subsystem_valid = !!(IXGBE_READ_REG(hw, IXGBE_FWSM_BY_MAC(hw))
353 & IXGBE_FWSM_MODE_MASK);
355 hw->mbx.ops.init_params = ixgbe_init_mbx_params_pf;
358 eeprom->ops.read = ixgbe_read_eeprom_82599;
359 eeprom->ops.read_buffer = ixgbe_read_eeprom_buffer_82599;
361 /* Manageability interface */
362 mac->ops.set_fw_drv_ver = ixgbe_set_fw_drv_ver_generic;
364 mac->ops.get_thermal_sensor_data =
365 ixgbe_get_thermal_sensor_data_generic;
366 mac->ops.init_thermal_sensor_thresh =
367 ixgbe_init_thermal_sensor_thresh_generic;
369 mac->ops.get_rtrup2tc = ixgbe_dcb_get_rtrup2tc_generic;
375 * ixgbe_get_link_capabilities_82599 - Determines link capabilities
376 * @hw: pointer to hardware structure
377 * @speed: pointer to link speed
378 * @autoneg: true when autoneg or autotry is enabled
380 * Determines the link capabilities by reading the AUTOC register.
382 s32 ixgbe_get_link_capabilities_82599(struct ixgbe_hw *hw,
383 ixgbe_link_speed *speed,
386 s32 status = IXGBE_SUCCESS;
389 DEBUGFUNC("ixgbe_get_link_capabilities_82599");
392 /* Check if 1G SFP module. */
393 if (hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core0 ||
394 hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core1 ||
395 hw->phy.sfp_type == ixgbe_sfp_type_1g_lx_core0 ||
396 hw->phy.sfp_type == ixgbe_sfp_type_1g_lx_core1 ||
397 hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core0 ||
398 hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core1) {
399 *speed = IXGBE_LINK_SPEED_1GB_FULL;
405 * Determine link capabilities based on the stored value of AUTOC,
406 * which represents EEPROM defaults. If AUTOC value has not
407 * been stored, use the current register values.
409 if (hw->mac.orig_link_settings_stored)
410 autoc = hw->mac.orig_autoc;
412 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
414 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
415 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
416 *speed = IXGBE_LINK_SPEED_1GB_FULL;
420 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
421 *speed = IXGBE_LINK_SPEED_10GB_FULL;
425 case IXGBE_AUTOC_LMS_1G_AN:
426 *speed = IXGBE_LINK_SPEED_1GB_FULL;
430 case IXGBE_AUTOC_LMS_10G_SERIAL:
431 *speed = IXGBE_LINK_SPEED_10GB_FULL;
435 case IXGBE_AUTOC_LMS_KX4_KX_KR:
436 case IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN:
437 *speed = IXGBE_LINK_SPEED_UNKNOWN;
438 if (autoc & IXGBE_AUTOC_KR_SUPP)
439 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
440 if (autoc & IXGBE_AUTOC_KX4_SUPP)
441 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
442 if (autoc & IXGBE_AUTOC_KX_SUPP)
443 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
447 case IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII:
448 *speed = IXGBE_LINK_SPEED_100_FULL;
449 if (autoc & IXGBE_AUTOC_KR_SUPP)
450 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
451 if (autoc & IXGBE_AUTOC_KX4_SUPP)
452 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
453 if (autoc & IXGBE_AUTOC_KX_SUPP)
454 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
458 case IXGBE_AUTOC_LMS_SGMII_1G_100M:
459 *speed = IXGBE_LINK_SPEED_1GB_FULL | IXGBE_LINK_SPEED_100_FULL;
464 status = IXGBE_ERR_LINK_SETUP;
469 if (hw->phy.multispeed_fiber) {
470 *speed |= IXGBE_LINK_SPEED_10GB_FULL |
471 IXGBE_LINK_SPEED_1GB_FULL;
473 /* QSFP must not enable full auto-negotiation
474 * Limited autoneg is enabled at 1G
476 if (hw->phy.media_type == ixgbe_media_type_fiber_qsfp)
487 * ixgbe_get_media_type_82599 - Get media type
488 * @hw: pointer to hardware structure
490 * Returns the media type (fiber, copper, backplane)
492 enum ixgbe_media_type ixgbe_get_media_type_82599(struct ixgbe_hw *hw)
494 enum ixgbe_media_type media_type;
496 DEBUGFUNC("ixgbe_get_media_type_82599");
498 /* Detect if there is a copper PHY attached. */
499 switch (hw->phy.type) {
500 case ixgbe_phy_cu_unknown:
502 media_type = ixgbe_media_type_copper;
508 switch (hw->device_id) {
509 case IXGBE_DEV_ID_82599_KX4:
510 case IXGBE_DEV_ID_82599_KX4_MEZZ:
511 case IXGBE_DEV_ID_82599_COMBO_BACKPLANE:
512 case IXGBE_DEV_ID_82599_KR:
513 case IXGBE_DEV_ID_82599_BACKPLANE_FCOE:
514 case IXGBE_DEV_ID_82599_XAUI_LOM:
515 /* Default device ID is mezzanine card KX/KX4 */
516 media_type = ixgbe_media_type_backplane;
518 case IXGBE_DEV_ID_82599_SFP:
519 case IXGBE_DEV_ID_82599_SFP_FCOE:
520 case IXGBE_DEV_ID_82599_SFP_EM:
521 case IXGBE_DEV_ID_82599_SFP_SF2:
522 case IXGBE_DEV_ID_82599_SFP_SF_QP:
523 case IXGBE_DEV_ID_82599EN_SFP:
524 media_type = ixgbe_media_type_fiber;
526 case IXGBE_DEV_ID_82599_CX4:
527 media_type = ixgbe_media_type_cx4;
529 case IXGBE_DEV_ID_82599_T3_LOM:
530 media_type = ixgbe_media_type_copper;
532 case IXGBE_DEV_ID_82599_QSFP_SF_QP:
533 media_type = ixgbe_media_type_fiber_qsfp;
536 media_type = ixgbe_media_type_unknown;
544 * ixgbe_stop_mac_link_on_d3_82599 - Disables link on D3
545 * @hw: pointer to hardware structure
547 * Disables link during D3 power down sequence.
550 void ixgbe_stop_mac_link_on_d3_82599(struct ixgbe_hw *hw)
555 DEBUGFUNC("ixgbe_stop_mac_link_on_d3_82599");
556 ixgbe_read_eeprom(hw, IXGBE_EEPROM_CTRL_2, &ee_ctrl_2);
558 if (!ixgbe_mng_present(hw) && !hw->wol_enabled &&
559 ee_ctrl_2 & IXGBE_EEPROM_CCD_BIT) {
560 autoc2_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
561 autoc2_reg |= IXGBE_AUTOC2_LINK_DISABLE_ON_D3_MASK;
562 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2_reg);
567 * ixgbe_start_mac_link_82599 - Setup MAC link settings
568 * @hw: pointer to hardware structure
569 * @autoneg_wait_to_complete: true when waiting for completion is needed
571 * Configures link settings based on values in the ixgbe_hw struct.
572 * Restarts the link. Performs autonegotiation if needed.
574 s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw,
575 bool autoneg_wait_to_complete)
580 s32 status = IXGBE_SUCCESS;
581 bool got_lock = false;
583 DEBUGFUNC("ixgbe_start_mac_link_82599");
586 /* reset_pipeline requires us to hold this lock as it writes to
589 if (ixgbe_verify_lesm_fw_enabled_82599(hw)) {
590 status = hw->mac.ops.acquire_swfw_sync(hw,
591 IXGBE_GSSR_MAC_CSR_SM);
592 if (status != IXGBE_SUCCESS)
599 ixgbe_reset_pipeline_82599(hw);
602 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
604 /* Only poll for autoneg to complete if specified to do so */
605 if (autoneg_wait_to_complete) {
606 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
607 if ((autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
608 IXGBE_AUTOC_LMS_KX4_KX_KR ||
609 (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
610 IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
611 (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
612 IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
613 links_reg = 0; /* Just in case Autoneg time = 0 */
614 for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
615 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
616 if (links_reg & IXGBE_LINKS_KX_AN_COMP)
620 if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
621 status = IXGBE_ERR_AUTONEG_NOT_COMPLETE;
622 DEBUGOUT("Autoneg did not complete.\n");
627 /* Add delay to filter out noises during initial link setup */
635 * ixgbe_disable_tx_laser_multispeed_fiber - Disable Tx laser
636 * @hw: pointer to hardware structure
638 * The base drivers may require better control over SFP+ module
639 * PHY states. This includes selectively shutting down the Tx
640 * laser on the PHY, effectively halting physical link.
642 void ixgbe_disable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
644 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
646 /* Blocked by MNG FW so bail */
647 if (ixgbe_check_reset_blocked(hw))
650 /* Disable Tx laser; allow 100us to go dark per spec */
651 esdp_reg |= IXGBE_ESDP_SDP3;
652 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
653 IXGBE_WRITE_FLUSH(hw);
658 * ixgbe_enable_tx_laser_multispeed_fiber - Enable Tx laser
659 * @hw: pointer to hardware structure
661 * The base drivers may require better control over SFP+ module
662 * PHY states. This includes selectively turning on the Tx
663 * laser on the PHY, effectively starting physical link.
665 void ixgbe_enable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
667 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
669 /* Enable Tx laser; allow 100ms to light up */
670 esdp_reg &= ~IXGBE_ESDP_SDP3;
671 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
672 IXGBE_WRITE_FLUSH(hw);
677 * ixgbe_flap_tx_laser_multispeed_fiber - Flap Tx laser
678 * @hw: pointer to hardware structure
680 * When the driver changes the link speeds that it can support,
681 * it sets autotry_restart to true to indicate that we need to
682 * initiate a new autotry session with the link partner. To do
683 * so, we set the speed then disable and re-enable the Tx laser, to
684 * alert the link partner that it also needs to restart autotry on its
685 * end. This is consistent with true clause 37 autoneg, which also
686 * involves a loss of signal.
688 void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
690 DEBUGFUNC("ixgbe_flap_tx_laser_multispeed_fiber");
692 /* Blocked by MNG FW so bail */
693 if (ixgbe_check_reset_blocked(hw))
696 if (hw->mac.autotry_restart) {
697 ixgbe_disable_tx_laser_multispeed_fiber(hw);
698 ixgbe_enable_tx_laser_multispeed_fiber(hw);
699 hw->mac.autotry_restart = false;
704 * ixgbe_set_hard_rate_select_speed - Set module link speed
705 * @hw: pointer to hardware structure
706 * @speed: link speed to set
708 * Set module link speed via RS0/RS1 rate select pins.
710 void ixgbe_set_hard_rate_select_speed(struct ixgbe_hw *hw,
711 ixgbe_link_speed speed)
713 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
716 case IXGBE_LINK_SPEED_10GB_FULL:
717 esdp_reg |= (IXGBE_ESDP_SDP5_DIR | IXGBE_ESDP_SDP5);
719 case IXGBE_LINK_SPEED_1GB_FULL:
720 esdp_reg &= ~IXGBE_ESDP_SDP5;
721 esdp_reg |= IXGBE_ESDP_SDP5_DIR;
724 DEBUGOUT("Invalid fixed module speed\n");
728 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
729 IXGBE_WRITE_FLUSH(hw);
733 * ixgbe_setup_mac_link_smartspeed - Set MAC link speed using SmartSpeed
734 * @hw: pointer to hardware structure
735 * @speed: new link speed
736 * @autoneg_wait_to_complete: true when waiting for completion is needed
738 * Implements the Intel SmartSpeed algorithm.
740 s32 ixgbe_setup_mac_link_smartspeed(struct ixgbe_hw *hw,
741 ixgbe_link_speed speed,
742 bool autoneg_wait_to_complete)
744 s32 status = IXGBE_SUCCESS;
745 ixgbe_link_speed link_speed = IXGBE_LINK_SPEED_UNKNOWN;
747 bool link_up = false;
748 u32 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
750 DEBUGFUNC("ixgbe_setup_mac_link_smartspeed");
752 /* Set autoneg_advertised value based on input link speed */
753 hw->phy.autoneg_advertised = 0;
755 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
756 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_10GB_FULL;
758 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
759 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_1GB_FULL;
761 if (speed & IXGBE_LINK_SPEED_100_FULL)
762 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_100_FULL;
765 * Implement Intel SmartSpeed algorithm. SmartSpeed will reduce the
766 * autoneg advertisement if link is unable to be established at the
767 * highest negotiated rate. This can sometimes happen due to integrity
768 * issues with the physical media connection.
771 /* First, try to get link with full advertisement */
772 hw->phy.smart_speed_active = false;
773 for (j = 0; j < IXGBE_SMARTSPEED_MAX_RETRIES; j++) {
774 status = ixgbe_setup_mac_link_82599(hw, speed,
775 autoneg_wait_to_complete);
776 if (status != IXGBE_SUCCESS)
780 * Wait for the controller to acquire link. Per IEEE 802.3ap,
781 * Section 73.10.2, we may have to wait up to 500ms if KR is
782 * attempted, or 200ms if KX/KX4/BX/BX4 is attempted, per
783 * Table 9 in the AN MAS.
785 for (i = 0; i < 5; i++) {
788 /* If we have link, just jump out */
789 status = ixgbe_check_link(hw, &link_speed, &link_up,
791 if (status != IXGBE_SUCCESS)
800 * We didn't get link. If we advertised KR plus one of KX4/KX
801 * (or BX4/BX), then disable KR and try again.
803 if (((autoc_reg & IXGBE_AUTOC_KR_SUPP) == 0) ||
804 ((autoc_reg & IXGBE_AUTOC_KX4_KX_SUPP_MASK) == 0))
807 /* Turn SmartSpeed on to disable KR support */
808 hw->phy.smart_speed_active = true;
809 status = ixgbe_setup_mac_link_82599(hw, speed,
810 autoneg_wait_to_complete);
811 if (status != IXGBE_SUCCESS)
815 * Wait for the controller to acquire link. 600ms will allow for
816 * the AN link_fail_inhibit_timer as well for multiple cycles of
817 * parallel detect, both 10g and 1g. This allows for the maximum
818 * connect attempts as defined in the AN MAS table 73-7.
820 for (i = 0; i < 6; i++) {
823 /* If we have link, just jump out */
824 status = ixgbe_check_link(hw, &link_speed, &link_up, false);
825 if (status != IXGBE_SUCCESS)
832 /* We didn't get link. Turn SmartSpeed back off. */
833 hw->phy.smart_speed_active = false;
834 status = ixgbe_setup_mac_link_82599(hw, speed,
835 autoneg_wait_to_complete);
838 if (link_up && (link_speed == IXGBE_LINK_SPEED_1GB_FULL))
839 DEBUGOUT("Smartspeed has downgraded the link speed "
840 "from the maximum advertised\n");
845 * ixgbe_setup_mac_link_82599 - Set MAC link speed
846 * @hw: pointer to hardware structure
847 * @speed: new link speed
848 * @autoneg_wait_to_complete: true when waiting for completion is needed
850 * Set the link speed in the AUTOC register and restarts link.
852 s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw,
853 ixgbe_link_speed speed,
854 bool autoneg_wait_to_complete)
856 bool autoneg = false;
857 s32 status = IXGBE_SUCCESS;
858 u32 pma_pmd_1g, link_mode;
859 u32 current_autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC); /* holds the value of AUTOC register at this current point in time */
860 u32 orig_autoc = 0; /* holds the cached value of AUTOC register */
861 u32 autoc = current_autoc; /* Temporary variable used for comparison purposes */
862 u32 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
863 u32 pma_pmd_10g_serial = autoc2 & IXGBE_AUTOC2_10G_SERIAL_PMA_PMD_MASK;
866 ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN;
868 DEBUGFUNC("ixgbe_setup_mac_link_82599");
870 /* Check to see if speed passed in is supported. */
871 status = ixgbe_get_link_capabilities(hw, &link_capabilities, &autoneg);
875 speed &= link_capabilities;
877 if (speed == IXGBE_LINK_SPEED_UNKNOWN) {
878 status = IXGBE_ERR_LINK_SETUP;
882 /* Use stored value (EEPROM defaults) of AUTOC to find KR/KX4 support*/
883 if (hw->mac.orig_link_settings_stored)
884 orig_autoc = hw->mac.orig_autoc;
888 link_mode = autoc & IXGBE_AUTOC_LMS_MASK;
889 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;
891 if (link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR ||
892 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
893 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
894 /* Set KX4/KX/KR support according to speed requested */
895 autoc &= ~(IXGBE_AUTOC_KX4_KX_SUPP_MASK | IXGBE_AUTOC_KR_SUPP);
896 if (speed & IXGBE_LINK_SPEED_10GB_FULL) {
897 if (orig_autoc & IXGBE_AUTOC_KX4_SUPP)
898 autoc |= IXGBE_AUTOC_KX4_SUPP;
899 if ((orig_autoc & IXGBE_AUTOC_KR_SUPP) &&
900 (hw->phy.smart_speed_active == false))
901 autoc |= IXGBE_AUTOC_KR_SUPP;
903 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
904 autoc |= IXGBE_AUTOC_KX_SUPP;
905 } else if ((pma_pmd_1g == IXGBE_AUTOC_1G_SFI) &&
906 (link_mode == IXGBE_AUTOC_LMS_1G_LINK_NO_AN ||
907 link_mode == IXGBE_AUTOC_LMS_1G_AN)) {
908 /* Switch from 1G SFI to 10G SFI if requested */
909 if ((speed == IXGBE_LINK_SPEED_10GB_FULL) &&
910 (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI)) {
911 autoc &= ~IXGBE_AUTOC_LMS_MASK;
912 autoc |= IXGBE_AUTOC_LMS_10G_SERIAL;
914 } else if ((pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI) &&
915 (link_mode == IXGBE_AUTOC_LMS_10G_SERIAL)) {
916 /* Switch from 10G SFI to 1G SFI if requested */
917 if ((speed == IXGBE_LINK_SPEED_1GB_FULL) &&
918 (pma_pmd_1g == IXGBE_AUTOC_1G_SFI)) {
919 autoc &= ~IXGBE_AUTOC_LMS_MASK;
920 if (autoneg || hw->phy.type == ixgbe_phy_qsfp_intel)
921 autoc |= IXGBE_AUTOC_LMS_1G_AN;
923 autoc |= IXGBE_AUTOC_LMS_1G_LINK_NO_AN;
927 if (autoc != current_autoc) {
929 status = hw->mac.ops.prot_autoc_write(hw, autoc, false);
930 if (status != IXGBE_SUCCESS)
933 /* Only poll for autoneg to complete if specified to do so */
934 if (autoneg_wait_to_complete) {
935 if (link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR ||
936 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
937 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
938 links_reg = 0; /*Just in case Autoneg time=0*/
939 for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
941 IXGBE_READ_REG(hw, IXGBE_LINKS);
942 if (links_reg & IXGBE_LINKS_KX_AN_COMP)
946 if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
948 IXGBE_ERR_AUTONEG_NOT_COMPLETE;
949 DEBUGOUT("Autoneg did not complete.\n");
954 /* Add delay to filter out noises during initial link setup */
963 * ixgbe_setup_copper_link_82599 - Set the PHY autoneg advertised field
964 * @hw: pointer to hardware structure
965 * @speed: new link speed
966 * @autoneg_wait_to_complete: true if waiting is needed to complete
968 * Restarts link on PHY and MAC based on settings passed in.
970 STATIC s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw,
971 ixgbe_link_speed speed,
972 bool autoneg_wait_to_complete)
976 DEBUGFUNC("ixgbe_setup_copper_link_82599");
978 /* Setup the PHY according to input speed */
979 status = hw->phy.ops.setup_link_speed(hw, speed,
980 autoneg_wait_to_complete);
982 ixgbe_start_mac_link_82599(hw, autoneg_wait_to_complete);
988 * ixgbe_reset_hw_82599 - Perform hardware reset
989 * @hw: pointer to hardware structure
991 * Resets the hardware by resetting the transmit and receive units, masks
992 * and clears all interrupts, perform a PHY reset, and perform a link (MAC)
995 s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw)
997 ixgbe_link_speed link_speed;
1000 u32 i, autoc, autoc2;
1002 bool link_up = false;
1004 DEBUGFUNC("ixgbe_reset_hw_82599");
1006 /* Call adapter stop to disable tx/rx and clear interrupts */
1007 status = hw->mac.ops.stop_adapter(hw);
1008 if (status != IXGBE_SUCCESS)
1011 /* flush pending Tx transactions */
1012 ixgbe_clear_tx_pending(hw);
1014 /* PHY ops must be identified and initialized prior to reset */
1016 /* Identify PHY and related function pointers */
1017 status = hw->phy.ops.init(hw);
1019 if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
1022 /* Setup SFP module if there is one present. */
1023 if (hw->phy.sfp_setup_needed) {
1024 status = hw->mac.ops.setup_sfp(hw);
1025 hw->phy.sfp_setup_needed = false;
1028 if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
1032 if (hw->phy.reset_disable == false && hw->phy.ops.reset != NULL)
1033 hw->phy.ops.reset(hw);
1035 /* remember AUTOC from before we reset */
1036 curr_lms = IXGBE_READ_REG(hw, IXGBE_AUTOC) & IXGBE_AUTOC_LMS_MASK;
1040 * Issue global reset to the MAC. Needs to be SW reset if link is up.
1041 * If link reset is used when link is up, it might reset the PHY when
1042 * mng is using it. If link is down or the flag to force full link
1043 * reset is set, then perform link reset.
1045 ctrl = IXGBE_CTRL_LNK_RST;
1046 if (!hw->force_full_reset) {
1047 hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
1049 ctrl = IXGBE_CTRL_RST;
1052 ctrl |= IXGBE_READ_REG(hw, IXGBE_CTRL);
1053 IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
1054 IXGBE_WRITE_FLUSH(hw);
1056 /* Poll for reset bit to self-clear meaning reset is complete */
1057 for (i = 0; i < 10; i++) {
1059 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
1060 if (!(ctrl & IXGBE_CTRL_RST_MASK))
1064 if (ctrl & IXGBE_CTRL_RST_MASK) {
1065 status = IXGBE_ERR_RESET_FAILED;
1066 DEBUGOUT("Reset polling failed to complete.\n");
1072 * Double resets are required for recovery from certain error
1073 * conditions. Between resets, it is necessary to stall to
1074 * allow time for any pending HW events to complete.
1076 if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
1077 hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
1082 * Store the original AUTOC/AUTOC2 values if they have not been
1083 * stored off yet. Otherwise restore the stored original
1084 * values since the reset operation sets back to defaults.
1086 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
1087 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
1089 /* Enable link if disabled in NVM */
1090 if (autoc2 & IXGBE_AUTOC2_LINK_DISABLE_MASK) {
1091 autoc2 &= ~IXGBE_AUTOC2_LINK_DISABLE_MASK;
1092 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2);
1093 IXGBE_WRITE_FLUSH(hw);
1096 if (hw->mac.orig_link_settings_stored == false) {
1097 hw->mac.orig_autoc = autoc;
1098 hw->mac.orig_autoc2 = autoc2;
1099 hw->mac.orig_link_settings_stored = true;
1102 /* If MNG FW is running on a multi-speed device that
1103 * doesn't autoneg with out driver support we need to
1104 * leave LMS in the state it was before we MAC reset.
1105 * Likewise if we support WoL we don't want change the
1108 if ((hw->phy.multispeed_fiber && ixgbe_mng_enabled(hw)) ||
1110 hw->mac.orig_autoc =
1111 (hw->mac.orig_autoc & ~IXGBE_AUTOC_LMS_MASK) |
1114 if (autoc != hw->mac.orig_autoc) {
1115 status = hw->mac.ops.prot_autoc_write(hw,
1118 if (status != IXGBE_SUCCESS)
1122 if ((autoc2 & IXGBE_AUTOC2_UPPER_MASK) !=
1123 (hw->mac.orig_autoc2 & IXGBE_AUTOC2_UPPER_MASK)) {
1124 autoc2 &= ~IXGBE_AUTOC2_UPPER_MASK;
1125 autoc2 |= (hw->mac.orig_autoc2 &
1126 IXGBE_AUTOC2_UPPER_MASK);
1127 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2);
1131 /* Store the permanent mac address */
1132 hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
1135 * Store MAC address from RAR0, clear receive address registers, and
1136 * clear the multicast table. Also reset num_rar_entries to 128,
1137 * since we modify this value when programming the SAN MAC address.
1139 hw->mac.num_rar_entries = 128;
1140 hw->mac.ops.init_rx_addrs(hw);
1142 /* Store the permanent SAN mac address */
1143 hw->mac.ops.get_san_mac_addr(hw, hw->mac.san_addr);
1145 /* Add the SAN MAC address to the RAR only if it's a valid address */
1146 if (ixgbe_validate_mac_addr(hw->mac.san_addr) == 0) {
1147 /* Save the SAN MAC RAR index */
1148 hw->mac.san_mac_rar_index = hw->mac.num_rar_entries - 1;
1150 hw->mac.ops.set_rar(hw, hw->mac.san_mac_rar_index,
1151 hw->mac.san_addr, 0, IXGBE_RAH_AV);
1153 /* clear VMDq pool/queue selection for this RAR */
1154 hw->mac.ops.clear_vmdq(hw, hw->mac.san_mac_rar_index,
1155 IXGBE_CLEAR_VMDQ_ALL);
1157 /* Reserve the last RAR for the SAN MAC address */
1158 hw->mac.num_rar_entries--;
1161 /* Store the alternative WWNN/WWPN prefix */
1162 hw->mac.ops.get_wwn_prefix(hw, &hw->mac.wwnn_prefix,
1163 &hw->mac.wwpn_prefix);
1170 * ixgbe_fdir_check_cmd_complete - poll to check whether FDIRCMD is complete
1171 * @hw: pointer to hardware structure
1172 * @fdircmd: current value of FDIRCMD register
1174 STATIC s32 ixgbe_fdir_check_cmd_complete(struct ixgbe_hw *hw, u32 *fdircmd)
1178 for (i = 0; i < IXGBE_FDIRCMD_CMD_POLL; i++) {
1179 *fdircmd = IXGBE_READ_REG(hw, IXGBE_FDIRCMD);
1180 if (!(*fdircmd & IXGBE_FDIRCMD_CMD_MASK))
1181 return IXGBE_SUCCESS;
1185 return IXGBE_ERR_FDIR_CMD_INCOMPLETE;
1189 * ixgbe_reinit_fdir_tables_82599 - Reinitialize Flow Director tables.
1190 * @hw: pointer to hardware structure
1192 s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw)
1196 u32 fdirctrl = IXGBE_READ_REG(hw, IXGBE_FDIRCTRL);
1198 fdirctrl &= ~IXGBE_FDIRCTRL_INIT_DONE;
1200 DEBUGFUNC("ixgbe_reinit_fdir_tables_82599");
1203 * Before starting reinitialization process,
1204 * FDIRCMD.CMD must be zero.
1206 err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
1208 DEBUGOUT("Flow Director previous command did not complete, aborting table re-initialization.\n");
1212 IXGBE_WRITE_REG(hw, IXGBE_FDIRFREE, 0);
1213 IXGBE_WRITE_FLUSH(hw);
1215 * 82599 adapters flow director init flow cannot be restarted,
1216 * Workaround 82599 silicon errata by performing the following steps
1217 * before re-writing the FDIRCTRL control register with the same value.
1218 * - write 1 to bit 8 of FDIRCMD register &
1219 * - write 0 to bit 8 of FDIRCMD register
1221 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1222 (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) |
1223 IXGBE_FDIRCMD_CLEARHT));
1224 IXGBE_WRITE_FLUSH(hw);
1225 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1226 (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) &
1227 ~IXGBE_FDIRCMD_CLEARHT));
1228 IXGBE_WRITE_FLUSH(hw);
1230 * Clear FDIR Hash register to clear any leftover hashes
1231 * waiting to be programmed.
1233 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, 0x00);
1234 IXGBE_WRITE_FLUSH(hw);
1236 IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
1237 IXGBE_WRITE_FLUSH(hw);
1239 /* Poll init-done after we write FDIRCTRL register */
1240 for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
1241 if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) &
1242 IXGBE_FDIRCTRL_INIT_DONE)
1246 if (i >= IXGBE_FDIR_INIT_DONE_POLL) {
1247 DEBUGOUT("Flow Director Signature poll time exceeded!\n");
1248 return IXGBE_ERR_FDIR_REINIT_FAILED;
1251 /* Clear FDIR statistics registers (read to clear) */
1252 IXGBE_READ_REG(hw, IXGBE_FDIRUSTAT);
1253 IXGBE_READ_REG(hw, IXGBE_FDIRFSTAT);
1254 IXGBE_READ_REG(hw, IXGBE_FDIRMATCH);
1255 IXGBE_READ_REG(hw, IXGBE_FDIRMISS);
1256 IXGBE_READ_REG(hw, IXGBE_FDIRLEN);
1258 return IXGBE_SUCCESS;
1262 * ixgbe_fdir_enable_82599 - Initialize Flow Director control registers
1263 * @hw: pointer to hardware structure
1264 * @fdirctrl: value to write to flow director control register
1266 STATIC void ixgbe_fdir_enable_82599(struct ixgbe_hw *hw, u32 fdirctrl)
1270 DEBUGFUNC("ixgbe_fdir_enable_82599");
1272 /* Prime the keys for hashing */
1273 IXGBE_WRITE_REG(hw, IXGBE_FDIRHKEY, IXGBE_ATR_BUCKET_HASH_KEY);
1274 IXGBE_WRITE_REG(hw, IXGBE_FDIRSKEY, IXGBE_ATR_SIGNATURE_HASH_KEY);
1277 * Poll init-done after we write the register. Estimated times:
1278 * 10G: PBALLOC = 11b, timing is 60us
1279 * 1G: PBALLOC = 11b, timing is 600us
1280 * 100M: PBALLOC = 11b, timing is 6ms
1282 * Multiple these timings by 4 if under full Rx load
1284 * So we'll poll for IXGBE_FDIR_INIT_DONE_POLL times, sleeping for
1285 * 1 msec per poll time. If we're at line rate and drop to 100M, then
1286 * this might not finish in our poll time, but we can live with that
1289 IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
1290 IXGBE_WRITE_FLUSH(hw);
1291 for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
1292 if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) &
1293 IXGBE_FDIRCTRL_INIT_DONE)
1298 if (i >= IXGBE_FDIR_INIT_DONE_POLL)
1299 DEBUGOUT("Flow Director poll time exceeded!\n");
1303 * ixgbe_init_fdir_signature_82599 - Initialize Flow Director signature filters
1304 * @hw: pointer to hardware structure
1305 * @fdirctrl: value to write to flow director control register, initially
1306 * contains just the value of the Rx packet buffer allocation
1308 s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 fdirctrl)
1310 DEBUGFUNC("ixgbe_init_fdir_signature_82599");
1313 * Continue setup of fdirctrl register bits:
1314 * Move the flexible bytes to use the ethertype - shift 6 words
1315 * Set the maximum length per hash bucket to 0xA filters
1316 * Send interrupt when 64 filters are left
1318 fdirctrl |= (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT) |
1319 (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT) |
1320 (4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT);
1322 /* write hashes and fdirctrl register, poll for completion */
1323 ixgbe_fdir_enable_82599(hw, fdirctrl);
1325 return IXGBE_SUCCESS;
1329 * ixgbe_init_fdir_perfect_82599 - Initialize Flow Director perfect filters
1330 * @hw: pointer to hardware structure
1331 * @fdirctrl: value to write to flow director control register, initially
1332 * contains just the value of the Rx packet buffer allocation
1333 * @cloud_mode: true - cloud mode, false - other mode
1335 s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 fdirctrl,
1338 UNREFERENCED_1PARAMETER(cloud_mode);
1339 DEBUGFUNC("ixgbe_init_fdir_perfect_82599");
1342 * Continue setup of fdirctrl register bits:
1343 * Turn perfect match filtering on
1344 * Report hash in RSS field of Rx wb descriptor
1345 * Initialize the drop queue to queue 127
1346 * Move the flexible bytes to use the ethertype - shift 6 words
1347 * Set the maximum length per hash bucket to 0xA filters
1348 * Send interrupt when 64 (0x4 * 16) filters are left
1350 fdirctrl |= IXGBE_FDIRCTRL_PERFECT_MATCH |
1351 IXGBE_FDIRCTRL_REPORT_STATUS |
1352 (IXGBE_FDIR_DROP_QUEUE << IXGBE_FDIRCTRL_DROP_Q_SHIFT) |
1353 (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT) |
1354 (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT) |
1355 (4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT);
1358 fdirctrl |=(IXGBE_FDIRCTRL_FILTERMODE_CLOUD <<
1359 IXGBE_FDIRCTRL_FILTERMODE_SHIFT);
1361 /* write hashes and fdirctrl register, poll for completion */
1362 ixgbe_fdir_enable_82599(hw, fdirctrl);
1364 return IXGBE_SUCCESS;
1368 * ixgbe_set_fdir_drop_queue_82599 - Set Flow Director drop queue
1369 * @hw: pointer to hardware structure
1370 * @dropqueue: Rx queue index used for the dropped packets
1372 void ixgbe_set_fdir_drop_queue_82599(struct ixgbe_hw *hw, u8 dropqueue)
1376 DEBUGFUNC("ixgbe_set_fdir_drop_queue_82599");
1377 /* Clear init done bit and drop queue field */
1378 fdirctrl = IXGBE_READ_REG(hw, IXGBE_FDIRCTRL);
1379 fdirctrl &= ~(IXGBE_FDIRCTRL_DROP_Q_MASK | IXGBE_FDIRCTRL_INIT_DONE);
1381 /* Set drop queue */
1382 fdirctrl |= (dropqueue << IXGBE_FDIRCTRL_DROP_Q_SHIFT);
1383 if ((hw->mac.type == ixgbe_mac_X550) ||
1384 (hw->mac.type == ixgbe_mac_X550EM_x) ||
1385 (hw->mac.type == ixgbe_mac_X550EM_a))
1386 fdirctrl |= IXGBE_FDIRCTRL_DROP_NO_MATCH;
1388 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1389 (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) |
1390 IXGBE_FDIRCMD_CLEARHT));
1391 IXGBE_WRITE_FLUSH(hw);
1392 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1393 (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) &
1394 ~IXGBE_FDIRCMD_CLEARHT));
1395 IXGBE_WRITE_FLUSH(hw);
1397 /* write hashes and fdirctrl register, poll for completion */
1398 ixgbe_fdir_enable_82599(hw, fdirctrl);
1402 * These defines allow us to quickly generate all of the necessary instructions
1403 * in the function below by simply calling out IXGBE_COMPUTE_SIG_HASH_ITERATION
1404 * for values 0 through 15
1406 #define IXGBE_ATR_COMMON_HASH_KEY \
1407 (IXGBE_ATR_BUCKET_HASH_KEY & IXGBE_ATR_SIGNATURE_HASH_KEY)
1408 #define IXGBE_COMPUTE_SIG_HASH_ITERATION(_n) \
1411 if (IXGBE_ATR_COMMON_HASH_KEY & (0x01 << n)) \
1412 common_hash ^= lo_hash_dword >> n; \
1413 else if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << n)) \
1414 bucket_hash ^= lo_hash_dword >> n; \
1415 else if (IXGBE_ATR_SIGNATURE_HASH_KEY & (0x01 << n)) \
1416 sig_hash ^= lo_hash_dword << (16 - n); \
1417 if (IXGBE_ATR_COMMON_HASH_KEY & (0x01 << (n + 16))) \
1418 common_hash ^= hi_hash_dword >> n; \
1419 else if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << (n + 16))) \
1420 bucket_hash ^= hi_hash_dword >> n; \
1421 else if (IXGBE_ATR_SIGNATURE_HASH_KEY & (0x01 << (n + 16))) \
1422 sig_hash ^= hi_hash_dword << (16 - n); \
1426 * ixgbe_atr_compute_sig_hash_82599 - Compute the signature hash
1427 * @input: input bitstream to compute the hash on
1428 * @common: compressed common input dword
1430 * This function is almost identical to the function above but contains
1431 * several optimizations such as unwinding all of the loops, letting the
1432 * compiler work out all of the conditional ifs since the keys are static
1433 * defines, and computing two keys at once since the hashed dword stream
1434 * will be the same for both keys.
1436 u32 ixgbe_atr_compute_sig_hash_82599(union ixgbe_atr_hash_dword input,
1437 union ixgbe_atr_hash_dword common)
1439 u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
1440 u32 sig_hash = 0, bucket_hash = 0, common_hash = 0;
1442 /* record the flow_vm_vlan bits as they are a key part to the hash */
1443 flow_vm_vlan = IXGBE_NTOHL(input.dword);
1445 /* generate common hash dword */
1446 hi_hash_dword = IXGBE_NTOHL(common.dword);
1448 /* low dword is word swapped version of common */
1449 lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
1451 /* apply flow ID/VM pool/VLAN ID bits to hash words */
1452 hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);
1454 /* Process bits 0 and 16 */
1455 IXGBE_COMPUTE_SIG_HASH_ITERATION(0);
1458 * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
1459 * delay this because bit 0 of the stream should not be processed
1460 * so we do not add the VLAN until after bit 0 was processed
1462 lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);
1464 /* Process remaining 30 bit of the key */
1465 IXGBE_COMPUTE_SIG_HASH_ITERATION(1);
1466 IXGBE_COMPUTE_SIG_HASH_ITERATION(2);
1467 IXGBE_COMPUTE_SIG_HASH_ITERATION(3);
1468 IXGBE_COMPUTE_SIG_HASH_ITERATION(4);
1469 IXGBE_COMPUTE_SIG_HASH_ITERATION(5);
1470 IXGBE_COMPUTE_SIG_HASH_ITERATION(6);
1471 IXGBE_COMPUTE_SIG_HASH_ITERATION(7);
1472 IXGBE_COMPUTE_SIG_HASH_ITERATION(8);
1473 IXGBE_COMPUTE_SIG_HASH_ITERATION(9);
1474 IXGBE_COMPUTE_SIG_HASH_ITERATION(10);
1475 IXGBE_COMPUTE_SIG_HASH_ITERATION(11);
1476 IXGBE_COMPUTE_SIG_HASH_ITERATION(12);
1477 IXGBE_COMPUTE_SIG_HASH_ITERATION(13);
1478 IXGBE_COMPUTE_SIG_HASH_ITERATION(14);
1479 IXGBE_COMPUTE_SIG_HASH_ITERATION(15);
1481 /* combine common_hash result with signature and bucket hashes */
1482 bucket_hash ^= common_hash;
1483 bucket_hash &= IXGBE_ATR_HASH_MASK;
1485 sig_hash ^= common_hash << 16;
1486 sig_hash &= IXGBE_ATR_HASH_MASK << 16;
1488 /* return completed signature hash */
1489 return sig_hash ^ bucket_hash;
1493 * ixgbe_atr_add_signature_filter_82599 - Adds a signature hash filter
1494 * @hw: pointer to hardware structure
1495 * @input: unique input dword
1496 * @common: compressed common input dword
1497 * @queue: queue index to direct traffic to
1499 * Note that the tunnel bit in input must not be set when the hardware
1500 * tunneling support does not exist.
1502 void ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
1503 union ixgbe_atr_hash_dword input,
1504 union ixgbe_atr_hash_dword common,
1512 DEBUGFUNC("ixgbe_fdir_add_signature_filter_82599");
1515 * Get the flow_type in order to program FDIRCMD properly
1516 * lowest 2 bits are FDIRCMD.L4TYPE, third lowest bit is FDIRCMD.IPV6
1517 * fifth is FDIRCMD.TUNNEL_FILTER
1519 tunnel = !!(input.formatted.flow_type & IXGBE_ATR_L4TYPE_TUNNEL_MASK);
1520 flow_type = input.formatted.flow_type &
1521 (IXGBE_ATR_L4TYPE_TUNNEL_MASK - 1);
1522 switch (flow_type) {
1523 case IXGBE_ATR_FLOW_TYPE_TCPV4:
1524 case IXGBE_ATR_FLOW_TYPE_UDPV4:
1525 case IXGBE_ATR_FLOW_TYPE_SCTPV4:
1526 case IXGBE_ATR_FLOW_TYPE_TCPV6:
1527 case IXGBE_ATR_FLOW_TYPE_UDPV6:
1528 case IXGBE_ATR_FLOW_TYPE_SCTPV6:
1531 DEBUGOUT(" Error on flow type input\n");
1535 /* configure FDIRCMD register */
1536 fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE |
1537 IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
1538 fdircmd |= (u32)flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
1539 fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
1541 fdircmd |= IXGBE_FDIRCMD_TUNNEL_FILTER;
1544 * The lower 32-bits of fdirhashcmd is for FDIRHASH, the upper 32-bits
1545 * is for FDIRCMD. Then do a 64-bit register write from FDIRHASH.
1547 fdirhashcmd = (u64)fdircmd << 32;
1548 fdirhashcmd |= ixgbe_atr_compute_sig_hash_82599(input, common);
1549 IXGBE_WRITE_REG64(hw, IXGBE_FDIRHASH, fdirhashcmd);
1551 DEBUGOUT2("Tx Queue=%x hash=%x\n", queue, (u32)fdirhashcmd);
1556 #define IXGBE_COMPUTE_BKT_HASH_ITERATION(_n) \
1559 if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << n)) \
1560 bucket_hash ^= lo_hash_dword >> n; \
1561 if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << (n + 16))) \
1562 bucket_hash ^= hi_hash_dword >> n; \
1566 * ixgbe_atr_compute_perfect_hash_82599 - Compute the perfect filter hash
1567 * @input: input bitstream to compute the hash on
1568 * @input_mask: mask for the input bitstream
1570 * This function serves two main purposes. First it applies the input_mask
1571 * to the atr_input resulting in a cleaned up atr_input data stream.
1572 * Secondly it computes the hash and stores it in the bkt_hash field at
1573 * the end of the input byte stream. This way it will be available for
1574 * future use without needing to recompute the hash.
1576 void ixgbe_atr_compute_perfect_hash_82599(union ixgbe_atr_input *input,
1577 union ixgbe_atr_input *input_mask)
1580 u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
1581 u32 bucket_hash = 0;
1585 /* Apply masks to input data */
1586 for (i = 0; i < 14; i++)
1587 input->dword_stream[i] &= input_mask->dword_stream[i];
1589 /* record the flow_vm_vlan bits as they are a key part to the hash */
1590 flow_vm_vlan = IXGBE_NTOHL(input->dword_stream[0]);
1592 /* generate common hash dword */
1593 for (i = 1; i <= 13; i++)
1594 hi_dword ^= input->dword_stream[i];
1595 hi_hash_dword = IXGBE_NTOHL(hi_dword);
1597 /* low dword is word swapped version of common */
1598 lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
1600 /* apply flow ID/VM pool/VLAN ID bits to hash words */
1601 hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);
1603 /* Process bits 0 and 16 */
1604 IXGBE_COMPUTE_BKT_HASH_ITERATION(0);
1607 * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
1608 * delay this because bit 0 of the stream should not be processed
1609 * so we do not add the VLAN until after bit 0 was processed
1611 lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);
1613 /* Process remaining 30 bit of the key */
1614 for (i = 1; i <= 15; i++)
1615 IXGBE_COMPUTE_BKT_HASH_ITERATION(i);
1618 * Limit hash to 13 bits since max bucket count is 8K.
1619 * Store result at the end of the input stream.
1621 input->formatted.bkt_hash = bucket_hash & 0x1FFF;
1625 * ixgbe_get_fdirtcpm_82599 - generate a TCP port from atr_input_masks
1626 * @input_mask: mask to be bit swapped
1628 * The source and destination port masks for flow director are bit swapped
1629 * in that bit 15 effects bit 0, 14 effects 1, 13, 2 etc. In order to
1630 * generate a correctly swapped value we need to bit swap the mask and that
1631 * is what is accomplished by this function.
1633 STATIC u32 ixgbe_get_fdirtcpm_82599(union ixgbe_atr_input *input_mask)
1635 u32 mask = IXGBE_NTOHS(input_mask->formatted.dst_port);
1636 mask <<= IXGBE_FDIRTCPM_DPORTM_SHIFT;
1637 mask |= IXGBE_NTOHS(input_mask->formatted.src_port);
1638 mask = ((mask & 0x55555555) << 1) | ((mask & 0xAAAAAAAA) >> 1);
1639 mask = ((mask & 0x33333333) << 2) | ((mask & 0xCCCCCCCC) >> 2);
1640 mask = ((mask & 0x0F0F0F0F) << 4) | ((mask & 0xF0F0F0F0) >> 4);
1641 return ((mask & 0x00FF00FF) << 8) | ((mask & 0xFF00FF00) >> 8);
1645 * These two macros are meant to address the fact that we have registers
1646 * that are either all or in part big-endian. As a result on big-endian
1647 * systems we will end up byte swapping the value to little-endian before
1648 * it is byte swapped again and written to the hardware in the original
1649 * big-endian format.
1651 #define IXGBE_STORE_AS_BE32(_value) \
1652 (((u32)(_value) >> 24) | (((u32)(_value) & 0x00FF0000) >> 8) | \
1653 (((u32)(_value) & 0x0000FF00) << 8) | ((u32)(_value) << 24))
1655 #define IXGBE_WRITE_REG_BE32(a, reg, value) \
1656 IXGBE_WRITE_REG((a), (reg), IXGBE_STORE_AS_BE32(IXGBE_NTOHL(value)))
1658 #define IXGBE_STORE_AS_BE16(_value) \
1659 IXGBE_NTOHS(((u16)(_value) >> 8) | ((u16)(_value) << 8))
1661 s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
1662 union ixgbe_atr_input *input_mask, bool cloud_mode)
1664 /* mask IPv6 since it is currently not supported */
1665 u32 fdirm = IXGBE_FDIRM_DIPv6;
1668 UNREFERENCED_1PARAMETER(cloud_mode);
1669 DEBUGFUNC("ixgbe_fdir_set_atr_input_mask_82599");
1672 * Program the relevant mask registers. If src/dst_port or src/dst_addr
1673 * are zero, then assume a full mask for that field. Also assume that
1674 * a VLAN of 0 is unspecified, so mask that out as well. L4type
1675 * cannot be masked out in this implementation.
1677 * This also assumes IPv4 only. IPv6 masking isn't supported at this
1681 /* verify bucket hash is cleared on hash generation */
1682 if (input_mask->formatted.bkt_hash)
1683 DEBUGOUT(" bucket hash should always be 0 in mask\n");
1685 /* Program FDIRM and verify partial masks */
1686 switch (input_mask->formatted.vm_pool & 0x7F) {
1688 fdirm |= IXGBE_FDIRM_POOL;
1692 DEBUGOUT(" Error on vm pool mask\n");
1693 return IXGBE_ERR_CONFIG;
1696 switch (input_mask->formatted.flow_type & IXGBE_ATR_L4TYPE_MASK) {
1698 fdirm |= IXGBE_FDIRM_L4P;
1699 if (input_mask->formatted.dst_port ||
1700 input_mask->formatted.src_port) {
1701 DEBUGOUT(" Error on src/dst port mask\n");
1702 return IXGBE_ERR_CONFIG;
1704 case IXGBE_ATR_L4TYPE_MASK:
1707 DEBUGOUT(" Error on flow type mask\n");
1708 return IXGBE_ERR_CONFIG;
1711 switch (IXGBE_NTOHS(input_mask->formatted.vlan_id) & 0xEFFF) {
1714 fdirm |= IXGBE_FDIRM_VLANID;
1717 /* mask VLAN priority */
1718 fdirm |= IXGBE_FDIRM_VLANP;
1721 /* mask VLAN ID only */
1722 fdirm |= IXGBE_FDIRM_VLANID;
1725 /* no VLAN fields masked */
1728 DEBUGOUT(" Error on VLAN mask\n");
1729 return IXGBE_ERR_CONFIG;
1732 switch (input_mask->formatted.flex_bytes & 0xFFFF) {
1734 /* Mask Flex Bytes */
1735 fdirm |= IXGBE_FDIRM_FLEX;
1740 DEBUGOUT(" Error on flexible byte mask\n");
1741 return IXGBE_ERR_CONFIG;
1745 fdirm |= IXGBE_FDIRM_L3P;
1746 fdirip6m = ((u32) 0xFFFFU << IXGBE_FDIRIP6M_DIPM_SHIFT);
1747 fdirip6m |= IXGBE_FDIRIP6M_ALWAYS_MASK;
1749 switch (input_mask->formatted.inner_mac[0] & 0xFF) {
1751 /* Mask inner MAC, fall through */
1752 fdirip6m |= IXGBE_FDIRIP6M_INNER_MAC;
1756 DEBUGOUT(" Error on inner_mac byte mask\n");
1757 return IXGBE_ERR_CONFIG;
1760 switch (input_mask->formatted.tni_vni & 0xFFFFFFFF) {
1763 fdirip6m |= IXGBE_FDIRIP6M_TNI_VNI;
1766 fdirip6m |= IXGBE_FDIRIP6M_TNI_VNI_24;
1771 DEBUGOUT(" Error on TNI/VNI byte mask\n");
1772 return IXGBE_ERR_CONFIG;
1775 switch (input_mask->formatted.tunnel_type & 0xFFFF) {
1777 /* Mask turnnel type, fall through */
1778 fdirip6m |= IXGBE_FDIRIP6M_TUNNEL_TYPE;
1782 DEBUGOUT(" Error on tunnel type byte mask\n");
1783 return IXGBE_ERR_CONFIG;
1785 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIP6M, fdirip6m);
1787 /* Set all bits in FDIRTCPM, FDIRUDPM, FDIRSCTPM,
1788 * FDIRSIP4M and FDIRDIP4M in cloud mode to allow
1789 * L3/L3 packets to tunnel.
1791 IXGBE_WRITE_REG(hw, IXGBE_FDIRTCPM, 0xFFFFFFFF);
1792 IXGBE_WRITE_REG(hw, IXGBE_FDIRUDPM, 0xFFFFFFFF);
1793 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRDIP4M, 0xFFFFFFFF);
1794 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIP4M, 0xFFFFFFFF);
1795 switch (hw->mac.type) {
1796 case ixgbe_mac_X550:
1797 case ixgbe_mac_X550EM_x:
1798 case ixgbe_mac_X550EM_a:
1799 IXGBE_WRITE_REG(hw, IXGBE_FDIRSCTPM, 0xFFFFFFFF);
1806 /* Now mask VM pool and destination IPv6 - bits 5 and 2 */
1807 IXGBE_WRITE_REG(hw, IXGBE_FDIRM, fdirm);
1810 /* store the TCP/UDP port masks, bit reversed from port
1812 fdirtcpm = ixgbe_get_fdirtcpm_82599(input_mask);
1814 /* write both the same so that UDP and TCP use the same mask */
1815 IXGBE_WRITE_REG(hw, IXGBE_FDIRTCPM, ~fdirtcpm);
1816 IXGBE_WRITE_REG(hw, IXGBE_FDIRUDPM, ~fdirtcpm);
1817 /* also use it for SCTP */
1818 switch (hw->mac.type) {
1819 case ixgbe_mac_X550:
1820 case ixgbe_mac_X550EM_x:
1821 case ixgbe_mac_X550EM_a:
1822 IXGBE_WRITE_REG(hw, IXGBE_FDIRSCTPM, ~fdirtcpm);
1828 /* store source and destination IP masks (big-enian) */
1829 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIP4M,
1830 ~input_mask->formatted.src_ip[0]);
1831 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRDIP4M,
1832 ~input_mask->formatted.dst_ip[0]);
1834 return IXGBE_SUCCESS;
1837 s32 ixgbe_fdir_write_perfect_filter_82599(struct ixgbe_hw *hw,
1838 union ixgbe_atr_input *input,
1839 u16 soft_id, u8 queue, bool cloud_mode)
1841 u32 fdirport, fdirvlan, fdirhash, fdircmd;
1842 u32 addr_low, addr_high;
1845 UNREFERENCED_1PARAMETER(cloud_mode);
1847 DEBUGFUNC("ixgbe_fdir_write_perfect_filter_82599");
1849 /* currently IPv6 is not supported, must be programmed with 0 */
1850 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(0),
1851 input->formatted.src_ip[0]);
1852 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(1),
1853 input->formatted.src_ip[1]);
1854 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(2),
1855 input->formatted.src_ip[2]);
1857 /* record the source address (big-endian) */
1858 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPSA,
1859 input->formatted.src_ip[0]);
1861 /* record the first 32 bits of the destination address
1863 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPDA,
1864 input->formatted.dst_ip[0]);
1866 /* record source and destination port (little-endian)*/
1867 fdirport = IXGBE_NTOHS(input->formatted.dst_port);
1868 fdirport <<= IXGBE_FDIRPORT_DESTINATION_SHIFT;
1869 fdirport |= IXGBE_NTOHS(input->formatted.src_port);
1870 IXGBE_WRITE_REG(hw, IXGBE_FDIRPORT, fdirport);
1873 /* record VLAN (little-endian) and flex_bytes(big-endian) */
1874 fdirvlan = IXGBE_STORE_AS_BE16(input->formatted.flex_bytes);
1875 fdirvlan <<= IXGBE_FDIRVLAN_FLEX_SHIFT;
1876 fdirvlan |= IXGBE_NTOHS(input->formatted.vlan_id);
1877 IXGBE_WRITE_REG(hw, IXGBE_FDIRVLAN, fdirvlan);
1880 if (input->formatted.tunnel_type != 0)
1881 cloud_type = 0x80000000;
1883 addr_low = ((u32)input->formatted.inner_mac[0] |
1884 ((u32)input->formatted.inner_mac[1] << 8) |
1885 ((u32)input->formatted.inner_mac[2] << 16) |
1886 ((u32)input->formatted.inner_mac[3] << 24));
1887 addr_high = ((u32)input->formatted.inner_mac[4] |
1888 ((u32)input->formatted.inner_mac[5] << 8));
1889 cloud_type |= addr_high;
1890 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(0), addr_low);
1891 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(1), cloud_type);
1892 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(2), input->formatted.tni_vni);
1895 /* configure FDIRHASH register */
1896 fdirhash = input->formatted.bkt_hash;
1897 fdirhash |= soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT;
1898 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
1901 * flush all previous writes to make certain registers are
1902 * programmed prior to issuing the command
1904 IXGBE_WRITE_FLUSH(hw);
1906 /* configure FDIRCMD register */
1907 fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE |
1908 IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
1909 if (queue == IXGBE_FDIR_DROP_QUEUE)
1910 fdircmd |= IXGBE_FDIRCMD_DROP;
1911 if (input->formatted.flow_type & IXGBE_ATR_L4TYPE_TUNNEL_MASK)
1912 fdircmd |= IXGBE_FDIRCMD_TUNNEL_FILTER;
1913 fdircmd |= input->formatted.flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
1914 fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
1915 fdircmd |= (u32)input->formatted.vm_pool << IXGBE_FDIRCMD_VT_POOL_SHIFT;
1917 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, fdircmd);
1918 err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
1920 DEBUGOUT("Flow Director command did not complete!\n");
1924 return IXGBE_SUCCESS;
1927 s32 ixgbe_fdir_erase_perfect_filter_82599(struct ixgbe_hw *hw,
1928 union ixgbe_atr_input *input,
1935 /* configure FDIRHASH register */
1936 fdirhash = input->formatted.bkt_hash;
1937 fdirhash |= soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT;
1938 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
1940 /* flush hash to HW */
1941 IXGBE_WRITE_FLUSH(hw);
1943 /* Query if filter is present */
1944 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, IXGBE_FDIRCMD_CMD_QUERY_REM_FILT);
1946 err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
1948 DEBUGOUT("Flow Director command did not complete!\n");
1952 /* if filter exists in hardware then remove it */
1953 if (fdircmd & IXGBE_FDIRCMD_FILTER_VALID) {
1954 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
1955 IXGBE_WRITE_FLUSH(hw);
1956 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1957 IXGBE_FDIRCMD_CMD_REMOVE_FLOW);
1960 return IXGBE_SUCCESS;
1964 * ixgbe_fdir_add_perfect_filter_82599 - Adds a perfect filter
1965 * @hw: pointer to hardware structure
1966 * @input: input bitstream
1967 * @input_mask: mask for the input bitstream
1968 * @soft_id: software index for the filters
1969 * @queue: queue index to direct traffic to
1970 * @cloud_mode: unused
1972 * Note that the caller to this function must lock before calling, since the
1973 * hardware writes must be protected from one another.
1975 s32 ixgbe_fdir_add_perfect_filter_82599(struct ixgbe_hw *hw,
1976 union ixgbe_atr_input *input,
1977 union ixgbe_atr_input *input_mask,
1978 u16 soft_id, u8 queue, bool cloud_mode)
1980 s32 err = IXGBE_ERR_CONFIG;
1981 UNREFERENCED_1PARAMETER(cloud_mode);
1983 DEBUGFUNC("ixgbe_fdir_add_perfect_filter_82599");
1986 * Check flow_type formatting, and bail out before we touch the hardware
1987 * if there's a configuration issue
1989 switch (input->formatted.flow_type) {
1990 case IXGBE_ATR_FLOW_TYPE_IPV4:
1991 case IXGBE_ATR_FLOW_TYPE_TUNNELED_IPV4:
1992 input_mask->formatted.flow_type = IXGBE_ATR_L4TYPE_IPV6_MASK;
1993 if (input->formatted.dst_port || input->formatted.src_port) {
1994 DEBUGOUT(" Error on src/dst port\n");
1995 return IXGBE_ERR_CONFIG;
1998 case IXGBE_ATR_FLOW_TYPE_SCTPV4:
1999 case IXGBE_ATR_FLOW_TYPE_TUNNELED_SCTPV4:
2000 if (input->formatted.dst_port || input->formatted.src_port) {
2001 DEBUGOUT(" Error on src/dst port\n");
2002 return IXGBE_ERR_CONFIG;
2005 case IXGBE_ATR_FLOW_TYPE_TCPV4:
2006 case IXGBE_ATR_FLOW_TYPE_TUNNELED_TCPV4:
2007 case IXGBE_ATR_FLOW_TYPE_UDPV4:
2008 case IXGBE_ATR_FLOW_TYPE_TUNNELED_UDPV4:
2009 input_mask->formatted.flow_type = IXGBE_ATR_L4TYPE_IPV6_MASK |
2010 IXGBE_ATR_L4TYPE_MASK;
2013 DEBUGOUT(" Error on flow type input\n");
2017 /* program input mask into the HW */
2018 err = ixgbe_fdir_set_input_mask_82599(hw, input_mask, cloud_mode);
2022 /* apply mask and compute/store hash */
2023 ixgbe_atr_compute_perfect_hash_82599(input, input_mask);
2025 /* program filters to filter memory */
2026 return ixgbe_fdir_write_perfect_filter_82599(hw, input,
2027 soft_id, queue, cloud_mode);
2031 * ixgbe_read_analog_reg8_82599 - Reads 8 bit Omer analog register
2032 * @hw: pointer to hardware structure
2033 * @reg: analog register to read
2036 * Performs read operation to Omer analog register specified.
2038 s32 ixgbe_read_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 *val)
2042 DEBUGFUNC("ixgbe_read_analog_reg8_82599");
2044 IXGBE_WRITE_REG(hw, IXGBE_CORECTL, IXGBE_CORECTL_WRITE_CMD |
2046 IXGBE_WRITE_FLUSH(hw);
2048 core_ctl = IXGBE_READ_REG(hw, IXGBE_CORECTL);
2049 *val = (u8)core_ctl;
2051 return IXGBE_SUCCESS;
2055 * ixgbe_write_analog_reg8_82599 - Writes 8 bit Omer analog register
2056 * @hw: pointer to hardware structure
2057 * @reg: atlas register to write
2058 * @val: value to write
2060 * Performs write operation to Omer analog register specified.
2062 s32 ixgbe_write_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 val)
2066 DEBUGFUNC("ixgbe_write_analog_reg8_82599");
2068 core_ctl = (reg << 8) | val;
2069 IXGBE_WRITE_REG(hw, IXGBE_CORECTL, core_ctl);
2070 IXGBE_WRITE_FLUSH(hw);
2073 return IXGBE_SUCCESS;
2077 * ixgbe_start_hw_82599 - Prepare hardware for Tx/Rx
2078 * @hw: pointer to hardware structure
2080 * Starts the hardware using the generic start_hw function
2081 * and the generation start_hw function.
2082 * Then performs revision-specific operations, if any.
2084 s32 ixgbe_start_hw_82599(struct ixgbe_hw *hw)
2086 s32 ret_val = IXGBE_SUCCESS;
2088 DEBUGFUNC("ixgbe_start_hw_82599");
2090 ret_val = ixgbe_start_hw_generic(hw);
2091 if (ret_val != IXGBE_SUCCESS)
2094 ret_val = ixgbe_start_hw_gen2(hw);
2095 if (ret_val != IXGBE_SUCCESS)
2098 /* We need to run link autotry after the driver loads */
2099 hw->mac.autotry_restart = true;
2101 if (ret_val == IXGBE_SUCCESS)
2102 ret_val = ixgbe_verify_fw_version_82599(hw);
2108 * ixgbe_identify_phy_82599 - Get physical layer module
2109 * @hw: pointer to hardware structure
2111 * Determines the physical layer module found on the current adapter.
2112 * If PHY already detected, maintains current PHY type in hw struct,
2113 * otherwise executes the PHY detection routine.
2115 s32 ixgbe_identify_phy_82599(struct ixgbe_hw *hw)
2119 DEBUGFUNC("ixgbe_identify_phy_82599");
2121 /* Detect PHY if not unknown - returns success if already detected. */
2122 status = ixgbe_identify_phy_generic(hw);
2123 if (status != IXGBE_SUCCESS) {
2124 /* 82599 10GBASE-T requires an external PHY */
2125 if (hw->mac.ops.get_media_type(hw) == ixgbe_media_type_copper)
2128 status = ixgbe_identify_module_generic(hw);
2131 /* Set PHY type none if no PHY detected */
2132 if (hw->phy.type == ixgbe_phy_unknown) {
2133 hw->phy.type = ixgbe_phy_none;
2134 return IXGBE_SUCCESS;
2137 /* Return error if SFP module has been detected but is not supported */
2138 if (hw->phy.type == ixgbe_phy_sfp_unsupported)
2139 return IXGBE_ERR_SFP_NOT_SUPPORTED;
2145 * ixgbe_get_supported_physical_layer_82599 - Returns physical layer type
2146 * @hw: pointer to hardware structure
2148 * Determines physical layer capabilities of the current configuration.
2150 u64 ixgbe_get_supported_physical_layer_82599(struct ixgbe_hw *hw)
2152 u64 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
2153 u32 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
2154 u32 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
2155 u32 pma_pmd_10g_serial = autoc2 & IXGBE_AUTOC2_10G_SERIAL_PMA_PMD_MASK;
2156 u32 pma_pmd_10g_parallel = autoc & IXGBE_AUTOC_10G_PMA_PMD_MASK;
2157 u32 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;
2158 u16 ext_ability = 0;
2160 DEBUGFUNC("ixgbe_get_support_physical_layer_82599");
2162 hw->phy.ops.identify(hw);
2164 switch (hw->phy.type) {
2166 case ixgbe_phy_cu_unknown:
2167 hw->phy.ops.read_reg(hw, IXGBE_MDIO_PHY_EXT_ABILITY,
2168 IXGBE_MDIO_PMA_PMD_DEV_TYPE, &ext_ability);
2169 if (ext_ability & IXGBE_MDIO_PHY_10GBASET_ABILITY)
2170 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_T;
2171 if (ext_ability & IXGBE_MDIO_PHY_1000BASET_ABILITY)
2172 physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_T;
2173 if (ext_ability & IXGBE_MDIO_PHY_100BASETX_ABILITY)
2174 physical_layer |= IXGBE_PHYSICAL_LAYER_100BASE_TX;
2180 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
2181 case IXGBE_AUTOC_LMS_1G_AN:
2182 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
2183 if (pma_pmd_1g == IXGBE_AUTOC_1G_KX_BX) {
2184 physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_KX |
2185 IXGBE_PHYSICAL_LAYER_1000BASE_BX;
2188 /* SFI mode so read SFP module */
2191 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
2192 if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_CX4)
2193 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_CX4;
2194 else if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_KX4)
2195 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
2196 else if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_XAUI)
2197 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_XAUI;
2200 case IXGBE_AUTOC_LMS_10G_SERIAL:
2201 if (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_KR) {
2202 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KR;
2204 } else if (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI)
2207 case IXGBE_AUTOC_LMS_KX4_KX_KR:
2208 case IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN:
2209 if (autoc & IXGBE_AUTOC_KX_SUPP)
2210 physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_KX;
2211 if (autoc & IXGBE_AUTOC_KX4_SUPP)
2212 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
2213 if (autoc & IXGBE_AUTOC_KR_SUPP)
2214 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KR;
2223 /* SFP check must be done last since DA modules are sometimes used to
2224 * test KR mode - we need to id KR mode correctly before SFP module.
2225 * Call identify_sfp because the pluggable module may have changed */
2226 physical_layer = ixgbe_get_supported_phy_sfp_layer_generic(hw);
2228 return physical_layer;
2232 * ixgbe_enable_rx_dma_82599 - Enable the Rx DMA unit on 82599
2233 * @hw: pointer to hardware structure
2234 * @regval: register value to write to RXCTRL
2236 * Enables the Rx DMA unit for 82599
2238 s32 ixgbe_enable_rx_dma_82599(struct ixgbe_hw *hw, u32 regval)
2241 DEBUGFUNC("ixgbe_enable_rx_dma_82599");
2244 * Workaround for 82599 silicon errata when enabling the Rx datapath.
2245 * If traffic is incoming before we enable the Rx unit, it could hang
2246 * the Rx DMA unit. Therefore, make sure the security engine is
2247 * completely disabled prior to enabling the Rx unit.
2250 hw->mac.ops.disable_sec_rx_path(hw);
2252 if (regval & IXGBE_RXCTRL_RXEN)
2253 ixgbe_enable_rx(hw);
2255 ixgbe_disable_rx(hw);
2257 hw->mac.ops.enable_sec_rx_path(hw);
2259 return IXGBE_SUCCESS;
2263 * ixgbe_verify_fw_version_82599 - verify FW version for 82599
2264 * @hw: pointer to hardware structure
2266 * Verifies that installed the firmware version is 0.6 or higher
2267 * for SFI devices. All 82599 SFI devices should have version 0.6 or higher.
2269 * Returns IXGBE_ERR_EEPROM_VERSION if the FW is not present or
2270 * if the FW version is not supported.
2272 STATIC s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw)
2274 s32 status = IXGBE_ERR_EEPROM_VERSION;
2275 u16 fw_offset, fw_ptp_cfg_offset;
2278 DEBUGFUNC("ixgbe_verify_fw_version_82599");
2280 /* firmware check is only necessary for SFI devices */
2281 if (hw->phy.media_type != ixgbe_media_type_fiber) {
2282 status = IXGBE_SUCCESS;
2283 goto fw_version_out;
2286 /* get the offset to the Firmware Module block */
2287 if (hw->eeprom.ops.read(hw, IXGBE_FW_PTR, &fw_offset)) {
2288 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
2289 "eeprom read at offset %d failed", IXGBE_FW_PTR);
2290 return IXGBE_ERR_EEPROM_VERSION;
2293 if ((fw_offset == 0) || (fw_offset == 0xFFFF))
2294 goto fw_version_out;
2296 /* get the offset to the Pass Through Patch Configuration block */
2297 if (hw->eeprom.ops.read(hw, (fw_offset +
2298 IXGBE_FW_PASSTHROUGH_PATCH_CONFIG_PTR),
2299 &fw_ptp_cfg_offset)) {
2300 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
2301 "eeprom read at offset %d failed",
2303 IXGBE_FW_PASSTHROUGH_PATCH_CONFIG_PTR);
2304 return IXGBE_ERR_EEPROM_VERSION;
2307 if ((fw_ptp_cfg_offset == 0) || (fw_ptp_cfg_offset == 0xFFFF))
2308 goto fw_version_out;
2310 /* get the firmware version */
2311 if (hw->eeprom.ops.read(hw, (fw_ptp_cfg_offset +
2312 IXGBE_FW_PATCH_VERSION_4), &fw_version)) {
2313 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
2314 "eeprom read at offset %d failed",
2315 fw_ptp_cfg_offset + IXGBE_FW_PATCH_VERSION_4);
2316 return IXGBE_ERR_EEPROM_VERSION;
2319 if (fw_version > 0x5)
2320 status = IXGBE_SUCCESS;
2327 * ixgbe_verify_lesm_fw_enabled_82599 - Checks LESM FW module state.
2328 * @hw: pointer to hardware structure
2330 * Returns true if the LESM FW module is present and enabled. Otherwise
2331 * returns false. Smart Speed must be disabled if LESM FW module is enabled.
2333 bool ixgbe_verify_lesm_fw_enabled_82599(struct ixgbe_hw *hw)
2335 bool lesm_enabled = false;
2336 u16 fw_offset, fw_lesm_param_offset, fw_lesm_state;
2339 DEBUGFUNC("ixgbe_verify_lesm_fw_enabled_82599");
2341 /* get the offset to the Firmware Module block */
2342 status = hw->eeprom.ops.read(hw, IXGBE_FW_PTR, &fw_offset);
2344 if ((status != IXGBE_SUCCESS) ||
2345 (fw_offset == 0) || (fw_offset == 0xFFFF))
2348 /* get the offset to the LESM Parameters block */
2349 status = hw->eeprom.ops.read(hw, (fw_offset +
2350 IXGBE_FW_LESM_PARAMETERS_PTR),
2351 &fw_lesm_param_offset);
2353 if ((status != IXGBE_SUCCESS) ||
2354 (fw_lesm_param_offset == 0) || (fw_lesm_param_offset == 0xFFFF))
2357 /* get the LESM state word */
2358 status = hw->eeprom.ops.read(hw, (fw_lesm_param_offset +
2359 IXGBE_FW_LESM_STATE_1),
2362 if ((status == IXGBE_SUCCESS) &&
2363 (fw_lesm_state & IXGBE_FW_LESM_STATE_ENABLED))
2364 lesm_enabled = true;
2367 return lesm_enabled;
2371 * ixgbe_read_eeprom_buffer_82599 - Read EEPROM word(s) using
2372 * fastest available method
2374 * @hw: pointer to hardware structure
2375 * @offset: offset of word in EEPROM to read
2376 * @words: number of words
2377 * @data: word(s) read from the EEPROM
2379 * Retrieves 16 bit word(s) read from EEPROM
2381 STATIC s32 ixgbe_read_eeprom_buffer_82599(struct ixgbe_hw *hw, u16 offset,
2382 u16 words, u16 *data)
2384 struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
2385 s32 ret_val = IXGBE_ERR_CONFIG;
2387 DEBUGFUNC("ixgbe_read_eeprom_buffer_82599");
2390 * If EEPROM is detected and can be addressed using 14 bits,
2391 * use EERD otherwise use bit bang
2393 if ((eeprom->type == ixgbe_eeprom_spi) &&
2394 (offset + (words - 1) <= IXGBE_EERD_MAX_ADDR))
2395 ret_val = ixgbe_read_eerd_buffer_generic(hw, offset, words,
2398 ret_val = ixgbe_read_eeprom_buffer_bit_bang_generic(hw, offset,
2406 * ixgbe_read_eeprom_82599 - Read EEPROM word using
2407 * fastest available method
2409 * @hw: pointer to hardware structure
2410 * @offset: offset of word in the EEPROM to read
2411 * @data: word read from the EEPROM
2413 * Reads a 16 bit word from the EEPROM
2415 STATIC s32 ixgbe_read_eeprom_82599(struct ixgbe_hw *hw,
2416 u16 offset, u16 *data)
2418 struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
2419 s32 ret_val = IXGBE_ERR_CONFIG;
2421 DEBUGFUNC("ixgbe_read_eeprom_82599");
2424 * If EEPROM is detected and can be addressed using 14 bits,
2425 * use EERD otherwise use bit bang
2427 if ((eeprom->type == ixgbe_eeprom_spi) &&
2428 (offset <= IXGBE_EERD_MAX_ADDR))
2429 ret_val = ixgbe_read_eerd_generic(hw, offset, data);
2431 ret_val = ixgbe_read_eeprom_bit_bang_generic(hw, offset, data);
2437 * ixgbe_reset_pipeline_82599 - perform pipeline reset
2439 * @hw: pointer to hardware structure
2441 * Reset pipeline by asserting Restart_AN together with LMS change to ensure
2442 * full pipeline reset. This function assumes the SW/FW lock is held.
2444 s32 ixgbe_reset_pipeline_82599(struct ixgbe_hw *hw)
2448 u32 i, autoc_reg, autoc2_reg;
2450 /* Enable link if disabled in NVM */
2451 autoc2_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
2452 if (autoc2_reg & IXGBE_AUTOC2_LINK_DISABLE_MASK) {
2453 autoc2_reg &= ~IXGBE_AUTOC2_LINK_DISABLE_MASK;
2454 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2_reg);
2455 IXGBE_WRITE_FLUSH(hw);
2458 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
2459 autoc_reg |= IXGBE_AUTOC_AN_RESTART;
2460 /* Write AUTOC register with toggled LMS[2] bit and Restart_AN */
2461 IXGBE_WRITE_REG(hw, IXGBE_AUTOC,
2462 autoc_reg ^ (0x4 << IXGBE_AUTOC_LMS_SHIFT));
2463 /* Wait for AN to leave state 0 */
2464 for (i = 0; i < 10; i++) {
2466 anlp1_reg = IXGBE_READ_REG(hw, IXGBE_ANLP1);
2467 if (anlp1_reg & IXGBE_ANLP1_AN_STATE_MASK)
2471 if (!(anlp1_reg & IXGBE_ANLP1_AN_STATE_MASK)) {
2472 DEBUGOUT("auto negotiation not completed\n");
2473 ret_val = IXGBE_ERR_RESET_FAILED;
2474 goto reset_pipeline_out;
2477 ret_val = IXGBE_SUCCESS;
2480 /* Write AUTOC register with original LMS field and Restart_AN */
2481 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
2482 IXGBE_WRITE_FLUSH(hw);
2488 * ixgbe_read_i2c_byte_82599 - Reads 8 bit word over I2C
2489 * @hw: pointer to hardware structure
2490 * @byte_offset: byte offset to read
2491 * @dev_addr: address to read from
2494 * Performs byte read operation to SFP module's EEPROM over I2C interface at
2495 * a specified device address.
2497 STATIC s32 ixgbe_read_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
2498 u8 dev_addr, u8 *data)
2504 DEBUGFUNC("ixgbe_read_i2c_byte_82599");
2506 if (hw->phy.qsfp_shared_i2c_bus == TRUE) {
2507 /* Acquire I2C bus ownership. */
2508 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2509 esdp |= IXGBE_ESDP_SDP0;
2510 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2511 IXGBE_WRITE_FLUSH(hw);
2514 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2515 if (esdp & IXGBE_ESDP_SDP1)
2523 DEBUGOUT("Driver can't access resource,"
2524 " acquiring I2C bus timeout.\n");
2525 status = IXGBE_ERR_I2C;
2526 goto release_i2c_access;
2530 status = ixgbe_read_i2c_byte_generic(hw, byte_offset, dev_addr, data);
2534 if (hw->phy.qsfp_shared_i2c_bus == TRUE) {
2535 /* Release I2C bus ownership. */
2536 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2537 esdp &= ~IXGBE_ESDP_SDP0;
2538 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2539 IXGBE_WRITE_FLUSH(hw);
2546 * ixgbe_write_i2c_byte_82599 - Writes 8 bit word over I2C
2547 * @hw: pointer to hardware structure
2548 * @byte_offset: byte offset to write
2549 * @dev_addr: address to read from
2550 * @data: value to write
2552 * Performs byte write operation to SFP module's EEPROM over I2C interface at
2553 * a specified device address.
2555 STATIC s32 ixgbe_write_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
2556 u8 dev_addr, u8 data)
2562 DEBUGFUNC("ixgbe_write_i2c_byte_82599");
2564 if (hw->phy.qsfp_shared_i2c_bus == TRUE) {
2565 /* Acquire I2C bus ownership. */
2566 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2567 esdp |= IXGBE_ESDP_SDP0;
2568 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2569 IXGBE_WRITE_FLUSH(hw);
2572 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2573 if (esdp & IXGBE_ESDP_SDP1)
2581 DEBUGOUT("Driver can't access resource,"
2582 " acquiring I2C bus timeout.\n");
2583 status = IXGBE_ERR_I2C;
2584 goto release_i2c_access;
2588 status = ixgbe_write_i2c_byte_generic(hw, byte_offset, dev_addr, data);
2592 if (hw->phy.qsfp_shared_i2c_bus == TRUE) {
2593 /* Release I2C bus ownership. */
2594 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2595 esdp &= ~IXGBE_ESDP_SDP0;
2596 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2597 IXGBE_WRITE_FLUSH(hw);