1 /*******************************************************************************
3 Copyright (c) 2001-2014, Intel Corporation
6 Redistribution and use in source and binary forms, with or without
7 modification, are permitted provided that the following conditions are met:
9 1. Redistributions of source code must retain the above copyright notice,
10 this list of conditions and the following disclaimer.
12 2. Redistributions in binary form must reproduce the above copyright
13 notice, this list of conditions and the following disclaimer in the
14 documentation and/or other materials provided with the distribution.
16 3. Neither the name of the Intel Corporation nor the names of its
17 contributors may be used to endorse or promote products derived from
18 this software without specific prior written permission.
20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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26 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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28 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 POSSIBILITY OF SUCH DAMAGE.
32 ***************************************************************************/
34 #include "ixgbe_type.h"
35 #include "ixgbe_82599.h"
36 #include "ixgbe_api.h"
37 #include "ixgbe_common.h"
38 #include "ixgbe_phy.h"
40 #define IXGBE_82599_MAX_TX_QUEUES 128
41 #define IXGBE_82599_MAX_RX_QUEUES 128
42 #define IXGBE_82599_RAR_ENTRIES 128
43 #define IXGBE_82599_MC_TBL_SIZE 128
44 #define IXGBE_82599_VFT_TBL_SIZE 128
45 #define IXGBE_82599_RX_PB_SIZE 512
47 STATIC s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw,
48 ixgbe_link_speed speed,
49 bool autoneg_wait_to_complete);
50 STATIC s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw);
51 STATIC s32 ixgbe_read_eeprom_82599(struct ixgbe_hw *hw,
52 u16 offset, u16 *data);
53 STATIC s32 ixgbe_read_eeprom_buffer_82599(struct ixgbe_hw *hw, u16 offset,
54 u16 words, u16 *data);
55 STATIC s32 ixgbe_read_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
56 u8 dev_addr, u8 *data);
57 STATIC s32 ixgbe_write_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
58 u8 dev_addr, u8 data);
60 void ixgbe_init_mac_link_ops_82599(struct ixgbe_hw *hw)
62 struct ixgbe_mac_info *mac = &hw->mac;
64 DEBUGFUNC("ixgbe_init_mac_link_ops_82599");
67 * enable the laser control functions for SFP+ fiber
70 if ((mac->ops.get_media_type(hw) == ixgbe_media_type_fiber) &&
71 !ixgbe_mng_enabled(hw)) {
72 mac->ops.disable_tx_laser =
73 ixgbe_disable_tx_laser_multispeed_fiber;
74 mac->ops.enable_tx_laser =
75 ixgbe_enable_tx_laser_multispeed_fiber;
76 mac->ops.flap_tx_laser = ixgbe_flap_tx_laser_multispeed_fiber;
79 mac->ops.disable_tx_laser = NULL;
80 mac->ops.enable_tx_laser = NULL;
81 mac->ops.flap_tx_laser = NULL;
84 if (hw->phy.multispeed_fiber) {
85 /* Set up dual speed SFP+ support */
86 mac->ops.setup_link = ixgbe_setup_mac_link_multispeed_fiber;
88 if ((ixgbe_get_media_type(hw) == ixgbe_media_type_backplane) &&
89 (hw->phy.smart_speed == ixgbe_smart_speed_auto ||
90 hw->phy.smart_speed == ixgbe_smart_speed_on) &&
91 !ixgbe_verify_lesm_fw_enabled_82599(hw)) {
92 mac->ops.setup_link = ixgbe_setup_mac_link_smartspeed;
94 mac->ops.setup_link = ixgbe_setup_mac_link_82599;
100 * ixgbe_init_phy_ops_82599 - PHY/SFP specific init
101 * @hw: pointer to hardware structure
103 * Initialize any function pointers that were not able to be
104 * set during init_shared_code because the PHY/SFP type was
105 * not known. Perform the SFP init if necessary.
108 s32 ixgbe_init_phy_ops_82599(struct ixgbe_hw *hw)
110 struct ixgbe_mac_info *mac = &hw->mac;
111 struct ixgbe_phy_info *phy = &hw->phy;
112 s32 ret_val = IXGBE_SUCCESS;
115 DEBUGFUNC("ixgbe_init_phy_ops_82599");
117 if (hw->device_id == IXGBE_DEV_ID_82599_QSFP_SF_QP) {
118 /* Store flag indicating I2C bus access control unit. */
119 hw->phy.qsfp_shared_i2c_bus = TRUE;
121 /* Initialize access to QSFP+ I2C bus */
122 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
123 esdp |= IXGBE_ESDP_SDP0_DIR;
124 esdp &= ~IXGBE_ESDP_SDP1_DIR;
125 esdp &= ~IXGBE_ESDP_SDP0;
126 esdp &= ~IXGBE_ESDP_SDP0_NATIVE;
127 esdp &= ~IXGBE_ESDP_SDP1_NATIVE;
128 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
129 IXGBE_WRITE_FLUSH(hw);
131 phy->ops.read_i2c_byte = ixgbe_read_i2c_byte_82599;
132 phy->ops.write_i2c_byte = ixgbe_write_i2c_byte_82599;
134 /* Identify the PHY or SFP module */
135 ret_val = phy->ops.identify(hw);
136 if (ret_val == IXGBE_ERR_SFP_NOT_SUPPORTED)
137 goto init_phy_ops_out;
139 /* Setup function pointers based on detected SFP module and speeds */
140 ixgbe_init_mac_link_ops_82599(hw);
141 if (hw->phy.sfp_type != ixgbe_sfp_type_unknown)
142 hw->phy.ops.reset = NULL;
144 /* If copper media, overwrite with copper function pointers */
145 if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper) {
146 mac->ops.setup_link = ixgbe_setup_copper_link_82599;
147 mac->ops.get_link_capabilities =
148 ixgbe_get_copper_link_capabilities_generic;
151 /* Set necessary function pointers based on PHY type */
152 switch (hw->phy.type) {
154 phy->ops.setup_link = ixgbe_setup_phy_link_tnx;
155 phy->ops.check_link = ixgbe_check_phy_link_tnx;
156 phy->ops.get_firmware_version =
157 ixgbe_get_phy_firmware_version_tnx;
166 s32 ixgbe_setup_sfp_modules_82599(struct ixgbe_hw *hw)
168 s32 ret_val = IXGBE_SUCCESS;
169 u16 list_offset, data_offset, data_value;
171 DEBUGFUNC("ixgbe_setup_sfp_modules_82599");
173 if (hw->phy.sfp_type != ixgbe_sfp_type_unknown) {
174 ixgbe_init_mac_link_ops_82599(hw);
176 hw->phy.ops.reset = NULL;
178 ret_val = ixgbe_get_sfp_init_sequence_offsets(hw, &list_offset,
180 if (ret_val != IXGBE_SUCCESS)
183 /* PHY config will finish before releasing the semaphore */
184 ret_val = hw->mac.ops.acquire_swfw_sync(hw,
185 IXGBE_GSSR_MAC_CSR_SM);
186 if (ret_val != IXGBE_SUCCESS) {
187 ret_val = IXGBE_ERR_SWFW_SYNC;
191 if (hw->eeprom.ops.read(hw, ++data_offset, &data_value))
193 while (data_value != 0xffff) {
194 IXGBE_WRITE_REG(hw, IXGBE_CORECTL, data_value);
195 IXGBE_WRITE_FLUSH(hw);
196 if (hw->eeprom.ops.read(hw, ++data_offset, &data_value))
200 /* Release the semaphore */
201 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
202 /* Delay obtaining semaphore again to allow FW access
203 * prot_autoc_write uses the semaphore too.
205 msec_delay(hw->eeprom.semaphore_delay);
207 /* Restart DSP and set SFI mode */
208 ret_val = hw->mac.ops.prot_autoc_write(hw,
209 hw->mac.orig_autoc | IXGBE_AUTOC_LMS_10G_SERIAL,
213 DEBUGOUT("sfp module setup not complete\n");
214 ret_val = IXGBE_ERR_SFP_SETUP_NOT_COMPLETE;
224 /* Release the semaphore */
225 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
226 /* Delay obtaining semaphore again to allow FW access */
227 msec_delay(hw->eeprom.semaphore_delay);
228 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
229 "eeprom read at offset %d failed", data_offset);
230 return IXGBE_ERR_PHY;
234 * prot_autoc_read_82599 - Hides MAC differences needed for AUTOC read
235 * @hw: pointer to hardware structure
236 * @locked: Return the if we locked for this read.
237 * @reg_val: Value we read from AUTOC
239 * For this part (82599) we need to wrap read-modify-writes with a possible
240 * FW/SW lock. It is assumed this lock will be freed with the next
241 * prot_autoc_write_82599().
243 s32 prot_autoc_read_82599(struct ixgbe_hw *hw, bool *locked, u32 *reg_val)
248 /* If LESM is on then we need to hold the SW/FW semaphore. */
249 if (ixgbe_verify_lesm_fw_enabled_82599(hw)) {
250 ret_val = hw->mac.ops.acquire_swfw_sync(hw,
251 IXGBE_GSSR_MAC_CSR_SM);
252 if (ret_val != IXGBE_SUCCESS)
253 return IXGBE_ERR_SWFW_SYNC;
258 *reg_val = IXGBE_READ_REG(hw, IXGBE_AUTOC);
259 return IXGBE_SUCCESS;
263 * prot_autoc_write_82599 - Hides MAC differences needed for AUTOC write
264 * @hw: pointer to hardware structure
265 * @reg_val: value to write to AUTOC
266 * @locked: bool to indicate whether the SW/FW lock was already taken by
267 * previous proc_autoc_read_82599.
269 * This part (82599) may need to hold the SW/FW lock around all writes to
270 * AUTOC. Likewise after a write we need to do a pipeline reset.
272 s32 prot_autoc_write_82599(struct ixgbe_hw *hw, u32 autoc, bool locked)
274 s32 ret_val = IXGBE_SUCCESS;
276 /* Blocked by MNG FW so bail */
277 if (ixgbe_check_reset_blocked(hw))
280 /* We only need to get the lock if:
281 * - We didn't do it already (in the read part of a read-modify-write)
284 if (!locked && ixgbe_verify_lesm_fw_enabled_82599(hw)) {
285 ret_val = hw->mac.ops.acquire_swfw_sync(hw,
286 IXGBE_GSSR_MAC_CSR_SM);
287 if (ret_val != IXGBE_SUCCESS)
288 return IXGBE_ERR_SWFW_SYNC;
293 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc);
294 ret_val = ixgbe_reset_pipeline_82599(hw);
297 /* Free the SW/FW semaphore as we either grabbed it here or
298 * already had it when this function was called.
301 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
307 * ixgbe_init_ops_82599 - Inits func ptrs and MAC type
308 * @hw: pointer to hardware structure
310 * Initialize the function pointers and assign the MAC type for 82599.
311 * Does not touch the hardware.
314 s32 ixgbe_init_ops_82599(struct ixgbe_hw *hw)
316 struct ixgbe_mac_info *mac = &hw->mac;
317 struct ixgbe_phy_info *phy = &hw->phy;
318 struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
321 DEBUGFUNC("ixgbe_init_ops_82599");
323 ixgbe_init_phy_ops_generic(hw);
324 ret_val = ixgbe_init_ops_generic(hw);
327 phy->ops.identify = ixgbe_identify_phy_82599;
328 phy->ops.init = ixgbe_init_phy_ops_82599;
331 mac->ops.reset_hw = ixgbe_reset_hw_82599;
332 mac->ops.enable_relaxed_ordering = ixgbe_enable_relaxed_ordering_gen2;
333 mac->ops.get_media_type = ixgbe_get_media_type_82599;
334 mac->ops.get_supported_physical_layer =
335 ixgbe_get_supported_physical_layer_82599;
336 mac->ops.disable_sec_rx_path = ixgbe_disable_sec_rx_path_generic;
337 mac->ops.enable_sec_rx_path = ixgbe_enable_sec_rx_path_generic;
338 mac->ops.enable_rx_dma = ixgbe_enable_rx_dma_82599;
339 mac->ops.read_analog_reg8 = ixgbe_read_analog_reg8_82599;
340 mac->ops.write_analog_reg8 = ixgbe_write_analog_reg8_82599;
341 mac->ops.start_hw = ixgbe_start_hw_82599;
342 mac->ops.get_san_mac_addr = ixgbe_get_san_mac_addr_generic;
343 mac->ops.set_san_mac_addr = ixgbe_set_san_mac_addr_generic;
344 mac->ops.get_device_caps = ixgbe_get_device_caps_generic;
345 mac->ops.get_wwn_prefix = ixgbe_get_wwn_prefix_generic;
346 mac->ops.get_fcoe_boot_status = ixgbe_get_fcoe_boot_status_generic;
347 mac->ops.prot_autoc_read = prot_autoc_read_82599;
348 mac->ops.prot_autoc_write = prot_autoc_write_82599;
350 /* RAR, Multicast, VLAN */
351 mac->ops.set_vmdq = ixgbe_set_vmdq_generic;
352 mac->ops.set_vmdq_san_mac = ixgbe_set_vmdq_san_mac_generic;
353 mac->ops.clear_vmdq = ixgbe_clear_vmdq_generic;
354 mac->ops.insert_mac_addr = ixgbe_insert_mac_addr_generic;
355 mac->rar_highwater = 1;
356 mac->ops.set_vfta = ixgbe_set_vfta_generic;
357 mac->ops.set_vlvf = ixgbe_set_vlvf_generic;
358 mac->ops.clear_vfta = ixgbe_clear_vfta_generic;
359 mac->ops.init_uta_tables = ixgbe_init_uta_tables_generic;
360 mac->ops.setup_sfp = ixgbe_setup_sfp_modules_82599;
361 mac->ops.set_mac_anti_spoofing = ixgbe_set_mac_anti_spoofing;
362 mac->ops.set_vlan_anti_spoofing = ixgbe_set_vlan_anti_spoofing;
365 mac->ops.get_link_capabilities = ixgbe_get_link_capabilities_82599;
366 mac->ops.check_link = ixgbe_check_mac_link_generic;
367 mac->ops.setup_rxpba = ixgbe_set_rxpba_generic;
368 ixgbe_init_mac_link_ops_82599(hw);
370 mac->mcft_size = IXGBE_82599_MC_TBL_SIZE;
371 mac->vft_size = IXGBE_82599_VFT_TBL_SIZE;
372 mac->num_rar_entries = IXGBE_82599_RAR_ENTRIES;
373 mac->rx_pb_size = IXGBE_82599_RX_PB_SIZE;
374 mac->max_rx_queues = IXGBE_82599_MAX_RX_QUEUES;
375 mac->max_tx_queues = IXGBE_82599_MAX_TX_QUEUES;
376 mac->max_msix_vectors = ixgbe_get_pcie_msix_count_generic(hw);
378 mac->arc_subsystem_valid = (IXGBE_READ_REG(hw, IXGBE_FWSM) &
379 IXGBE_FWSM_MODE_MASK) ? true : false;
381 hw->mbx.ops.init_params = ixgbe_init_mbx_params_pf;
384 eeprom->ops.read = ixgbe_read_eeprom_82599;
385 eeprom->ops.read_buffer = ixgbe_read_eeprom_buffer_82599;
387 /* Manageability interface */
388 mac->ops.set_fw_drv_ver = ixgbe_set_fw_drv_ver_generic;
390 mac->ops.get_thermal_sensor_data =
391 ixgbe_get_thermal_sensor_data_generic;
392 mac->ops.init_thermal_sensor_thresh =
393 ixgbe_init_thermal_sensor_thresh_generic;
395 mac->ops.get_rtrup2tc = ixgbe_dcb_get_rtrup2tc_generic;
401 * ixgbe_get_link_capabilities_82599 - Determines link capabilities
402 * @hw: pointer to hardware structure
403 * @speed: pointer to link speed
404 * @autoneg: true when autoneg or autotry is enabled
406 * Determines the link capabilities by reading the AUTOC register.
408 s32 ixgbe_get_link_capabilities_82599(struct ixgbe_hw *hw,
409 ixgbe_link_speed *speed,
412 s32 status = IXGBE_SUCCESS;
415 DEBUGFUNC("ixgbe_get_link_capabilities_82599");
418 /* Check if 1G SFP module. */
419 if (hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core0 ||
420 hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core1 ||
421 hw->phy.sfp_type == ixgbe_sfp_type_1g_lx_core0 ||
422 hw->phy.sfp_type == ixgbe_sfp_type_1g_lx_core1 ||
423 hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core0 ||
424 hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core1) {
425 *speed = IXGBE_LINK_SPEED_1GB_FULL;
431 * Determine link capabilities based on the stored value of AUTOC,
432 * which represents EEPROM defaults. If AUTOC value has not
433 * been stored, use the current register values.
435 if (hw->mac.orig_link_settings_stored)
436 autoc = hw->mac.orig_autoc;
438 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
440 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
441 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
442 *speed = IXGBE_LINK_SPEED_1GB_FULL;
446 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
447 *speed = IXGBE_LINK_SPEED_10GB_FULL;
451 case IXGBE_AUTOC_LMS_1G_AN:
452 *speed = IXGBE_LINK_SPEED_1GB_FULL;
456 case IXGBE_AUTOC_LMS_10G_SERIAL:
457 *speed = IXGBE_LINK_SPEED_10GB_FULL;
461 case IXGBE_AUTOC_LMS_KX4_KX_KR:
462 case IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN:
463 *speed = IXGBE_LINK_SPEED_UNKNOWN;
464 if (autoc & IXGBE_AUTOC_KR_SUPP)
465 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
466 if (autoc & IXGBE_AUTOC_KX4_SUPP)
467 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
468 if (autoc & IXGBE_AUTOC_KX_SUPP)
469 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
473 case IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII:
474 *speed = IXGBE_LINK_SPEED_100_FULL;
475 if (autoc & IXGBE_AUTOC_KR_SUPP)
476 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
477 if (autoc & IXGBE_AUTOC_KX4_SUPP)
478 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
479 if (autoc & IXGBE_AUTOC_KX_SUPP)
480 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
484 case IXGBE_AUTOC_LMS_SGMII_1G_100M:
485 *speed = IXGBE_LINK_SPEED_1GB_FULL | IXGBE_LINK_SPEED_100_FULL;
490 status = IXGBE_ERR_LINK_SETUP;
495 if (hw->phy.multispeed_fiber) {
496 *speed |= IXGBE_LINK_SPEED_10GB_FULL |
497 IXGBE_LINK_SPEED_1GB_FULL;
499 /* QSFP must not enable full auto-negotiation
500 * Limited autoneg is enabled at 1G
502 if (hw->phy.media_type == ixgbe_media_type_fiber_qsfp)
513 * ixgbe_get_media_type_82599 - Get media type
514 * @hw: pointer to hardware structure
516 * Returns the media type (fiber, copper, backplane)
518 enum ixgbe_media_type ixgbe_get_media_type_82599(struct ixgbe_hw *hw)
520 enum ixgbe_media_type media_type;
522 DEBUGFUNC("ixgbe_get_media_type_82599");
524 /* Detect if there is a copper PHY attached. */
525 switch (hw->phy.type) {
526 case ixgbe_phy_cu_unknown:
528 media_type = ixgbe_media_type_copper;
534 switch (hw->device_id) {
535 case IXGBE_DEV_ID_82599_KX4:
536 case IXGBE_DEV_ID_82599_KX4_MEZZ:
537 case IXGBE_DEV_ID_82599_COMBO_BACKPLANE:
538 case IXGBE_DEV_ID_82599_KR:
539 case IXGBE_DEV_ID_82599_BACKPLANE_FCOE:
540 case IXGBE_DEV_ID_82599_XAUI_LOM:
541 /* Default device ID is mezzanine card KX/KX4 */
542 media_type = ixgbe_media_type_backplane;
544 case IXGBE_DEV_ID_82599_SFP:
545 case IXGBE_DEV_ID_82599_SFP_FCOE:
546 case IXGBE_DEV_ID_82599_SFP_EM:
547 case IXGBE_DEV_ID_82599_SFP_SF2:
548 case IXGBE_DEV_ID_82599_SFP_SF_QP:
549 case IXGBE_DEV_ID_82599EN_SFP:
550 media_type = ixgbe_media_type_fiber;
552 case IXGBE_DEV_ID_82599_CX4:
553 media_type = ixgbe_media_type_cx4;
555 case IXGBE_DEV_ID_82599_T3_LOM:
556 media_type = ixgbe_media_type_copper;
558 case IXGBE_DEV_ID_82599_LS:
559 media_type = ixgbe_media_type_fiber_lco;
561 case IXGBE_DEV_ID_82599_QSFP_SF_QP:
562 media_type = ixgbe_media_type_fiber_qsfp;
565 media_type = ixgbe_media_type_unknown;
573 * ixgbe_stop_mac_link_on_d3_82599 - Disables link on D3
574 * @hw: pointer to hardware structure
576 * Disables link during D3 power down sequence.
579 void ixgbe_stop_mac_link_on_d3_82599(struct ixgbe_hw *hw)
581 u32 autoc2_reg, fwsm;
584 DEBUGFUNC("ixgbe_stop_mac_link_on_d3_82599");
585 ixgbe_read_eeprom(hw, IXGBE_EEPROM_CTRL_2, &ee_ctrl_2);
587 /* Check to see if MNG FW could be enabled */
588 fwsm = IXGBE_READ_REG(hw, IXGBE_FWSM);
590 if (((fwsm & IXGBE_FWSM_MODE_MASK) != IXGBE_FWSM_FW_MODE_PT) &&
592 ee_ctrl_2 & IXGBE_EEPROM_CCD_BIT) {
593 autoc2_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
594 autoc2_reg |= IXGBE_AUTOC2_LINK_DISABLE_ON_D3_MASK;
595 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2_reg);
600 * ixgbe_start_mac_link_82599 - Setup MAC link settings
601 * @hw: pointer to hardware structure
602 * @autoneg_wait_to_complete: true when waiting for completion is needed
604 * Configures link settings based on values in the ixgbe_hw struct.
605 * Restarts the link. Performs autonegotiation if needed.
607 s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw,
608 bool autoneg_wait_to_complete)
613 s32 status = IXGBE_SUCCESS;
614 bool got_lock = false;
616 DEBUGFUNC("ixgbe_start_mac_link_82599");
619 /* reset_pipeline requires us to hold this lock as it writes to
622 if (ixgbe_verify_lesm_fw_enabled_82599(hw)) {
623 status = hw->mac.ops.acquire_swfw_sync(hw,
624 IXGBE_GSSR_MAC_CSR_SM);
625 if (status != IXGBE_SUCCESS)
632 ixgbe_reset_pipeline_82599(hw);
635 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
637 /* Only poll for autoneg to complete if specified to do so */
638 if (autoneg_wait_to_complete) {
639 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
640 if ((autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
641 IXGBE_AUTOC_LMS_KX4_KX_KR ||
642 (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
643 IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
644 (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
645 IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
646 links_reg = 0; /* Just in case Autoneg time = 0 */
647 for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
648 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
649 if (links_reg & IXGBE_LINKS_KX_AN_COMP)
653 if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
654 status = IXGBE_ERR_AUTONEG_NOT_COMPLETE;
655 DEBUGOUT("Autoneg did not complete.\n");
660 /* Add delay to filter out noises during initial link setup */
668 * ixgbe_disable_tx_laser_multispeed_fiber - Disable Tx laser
669 * @hw: pointer to hardware structure
671 * The base drivers may require better control over SFP+ module
672 * PHY states. This includes selectively shutting down the Tx
673 * laser on the PHY, effectively halting physical link.
675 void ixgbe_disable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
677 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
679 /* Blocked by MNG FW so bail */
680 if (ixgbe_check_reset_blocked(hw))
683 /* Disable Tx laser; allow 100us to go dark per spec */
684 esdp_reg |= IXGBE_ESDP_SDP3;
685 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
686 IXGBE_WRITE_FLUSH(hw);
691 * ixgbe_enable_tx_laser_multispeed_fiber - Enable Tx laser
692 * @hw: pointer to hardware structure
694 * The base drivers may require better control over SFP+ module
695 * PHY states. This includes selectively turning on the Tx
696 * laser on the PHY, effectively starting physical link.
698 void ixgbe_enable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
700 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
702 /* Enable Tx laser; allow 100ms to light up */
703 esdp_reg &= ~IXGBE_ESDP_SDP3;
704 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
705 IXGBE_WRITE_FLUSH(hw);
710 * ixgbe_flap_tx_laser_multispeed_fiber - Flap Tx laser
711 * @hw: pointer to hardware structure
713 * When the driver changes the link speeds that it can support,
714 * it sets autotry_restart to true to indicate that we need to
715 * initiate a new autotry session with the link partner. To do
716 * so, we set the speed then disable and re-enable the Tx laser, to
717 * alert the link partner that it also needs to restart autotry on its
718 * end. This is consistent with true clause 37 autoneg, which also
719 * involves a loss of signal.
721 void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
723 DEBUGFUNC("ixgbe_flap_tx_laser_multispeed_fiber");
725 /* Blocked by MNG FW so bail */
726 if (ixgbe_check_reset_blocked(hw))
729 if (hw->mac.autotry_restart) {
730 ixgbe_disable_tx_laser_multispeed_fiber(hw);
731 ixgbe_enable_tx_laser_multispeed_fiber(hw);
732 hw->mac.autotry_restart = false;
738 * ixgbe_setup_mac_link_multispeed_fiber - Set MAC link speed
739 * @hw: pointer to hardware structure
740 * @speed: new link speed
741 * @autoneg_wait_to_complete: true when waiting for completion is needed
743 * Set the link speed in the AUTOC register and restarts link.
745 s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw,
746 ixgbe_link_speed speed,
747 bool autoneg_wait_to_complete)
749 s32 status = IXGBE_SUCCESS;
750 ixgbe_link_speed link_speed = IXGBE_LINK_SPEED_UNKNOWN;
751 ixgbe_link_speed highest_link_speed = IXGBE_LINK_SPEED_UNKNOWN;
753 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
755 bool autoneg, link_up = false;
757 DEBUGFUNC("ixgbe_setup_mac_link_multispeed_fiber");
759 /* Mask off requested but non-supported speeds */
760 status = ixgbe_get_link_capabilities(hw, &link_speed, &autoneg);
761 if (status != IXGBE_SUCCESS)
767 * Try each speed one by one, highest priority first. We do this in
768 * software because 10gb fiber doesn't support speed autonegotiation.
770 if (speed & IXGBE_LINK_SPEED_10GB_FULL) {
772 highest_link_speed = IXGBE_LINK_SPEED_10GB_FULL;
774 /* If we already have link at this speed, just jump out */
775 status = ixgbe_check_link(hw, &link_speed, &link_up, false);
776 if (status != IXGBE_SUCCESS)
779 if ((link_speed == IXGBE_LINK_SPEED_10GB_FULL) && link_up)
782 /* Set the module link speed */
783 switch (hw->phy.media_type) {
784 case ixgbe_media_type_fiber:
785 esdp_reg |= (IXGBE_ESDP_SDP5_DIR | IXGBE_ESDP_SDP5);
786 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
787 IXGBE_WRITE_FLUSH(hw);
789 case ixgbe_media_type_fiber_qsfp:
790 /* QSFP module automatically detects MAC link speed */
793 DEBUGOUT("Unexpected media type.\n");
797 /* Allow module to change analog characteristics (1G->10G) */
800 status = ixgbe_setup_mac_link_82599(hw,
801 IXGBE_LINK_SPEED_10GB_FULL,
802 autoneg_wait_to_complete);
803 if (status != IXGBE_SUCCESS)
806 /* Flap the tx laser if it has not already been done */
807 ixgbe_flap_tx_laser(hw);
810 * Wait for the controller to acquire link. Per IEEE 802.3ap,
811 * Section 73.10.2, we may have to wait up to 500ms if KR is
812 * attempted. 82599 uses the same timing for 10g SFI.
814 for (i = 0; i < 5; i++) {
815 /* Wait for the link partner to also set speed */
818 /* If we have link, just jump out */
819 status = ixgbe_check_link(hw, &link_speed,
821 if (status != IXGBE_SUCCESS)
829 if (speed & IXGBE_LINK_SPEED_1GB_FULL) {
831 if (highest_link_speed == IXGBE_LINK_SPEED_UNKNOWN)
832 highest_link_speed = IXGBE_LINK_SPEED_1GB_FULL;
834 /* If we already have link at this speed, just jump out */
835 status = ixgbe_check_link(hw, &link_speed, &link_up, false);
836 if (status != IXGBE_SUCCESS)
839 if ((link_speed == IXGBE_LINK_SPEED_1GB_FULL) && link_up)
842 /* Set the module link speed */
843 switch (hw->phy.media_type) {
844 case ixgbe_media_type_fiber:
845 esdp_reg &= ~IXGBE_ESDP_SDP5;
846 esdp_reg |= IXGBE_ESDP_SDP5_DIR;
847 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
848 IXGBE_WRITE_FLUSH(hw);
850 case ixgbe_media_type_fiber_qsfp:
851 /* QSFP module automatically detects link speed */
854 DEBUGOUT("Unexpected media type.\n");
858 /* Allow module to change analog characteristics (10G->1G) */
861 status = ixgbe_setup_mac_link_82599(hw,
862 IXGBE_LINK_SPEED_1GB_FULL,
863 autoneg_wait_to_complete);
864 if (status != IXGBE_SUCCESS)
867 /* Flap the Tx laser if it has not already been done */
868 ixgbe_flap_tx_laser(hw);
870 /* Wait for the link partner to also set speed */
873 /* If we have link, just jump out */
874 status = ixgbe_check_link(hw, &link_speed, &link_up, false);
875 if (status != IXGBE_SUCCESS)
883 * We didn't get link. Configure back to the highest speed we tried,
884 * (if there was more than one). We call ourselves back with just the
885 * single highest speed that the user requested.
888 status = ixgbe_setup_mac_link_multispeed_fiber(hw,
889 highest_link_speed, autoneg_wait_to_complete);
892 /* Set autoneg_advertised value based on input link speed */
893 hw->phy.autoneg_advertised = 0;
895 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
896 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_10GB_FULL;
898 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
899 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_1GB_FULL;
905 * ixgbe_setup_mac_link_smartspeed - Set MAC link speed using SmartSpeed
906 * @hw: pointer to hardware structure
907 * @speed: new link speed
908 * @autoneg_wait_to_complete: true when waiting for completion is needed
910 * Implements the Intel SmartSpeed algorithm.
912 s32 ixgbe_setup_mac_link_smartspeed(struct ixgbe_hw *hw,
913 ixgbe_link_speed speed,
914 bool autoneg_wait_to_complete)
916 s32 status = IXGBE_SUCCESS;
917 ixgbe_link_speed link_speed = IXGBE_LINK_SPEED_UNKNOWN;
919 bool link_up = false;
920 u32 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
922 DEBUGFUNC("ixgbe_setup_mac_link_smartspeed");
924 /* Set autoneg_advertised value based on input link speed */
925 hw->phy.autoneg_advertised = 0;
927 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
928 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_10GB_FULL;
930 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
931 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_1GB_FULL;
933 if (speed & IXGBE_LINK_SPEED_100_FULL)
934 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_100_FULL;
937 * Implement Intel SmartSpeed algorithm. SmartSpeed will reduce the
938 * autoneg advertisement if link is unable to be established at the
939 * highest negotiated rate. This can sometimes happen due to integrity
940 * issues with the physical media connection.
943 /* First, try to get link with full advertisement */
944 hw->phy.smart_speed_active = false;
945 for (j = 0; j < IXGBE_SMARTSPEED_MAX_RETRIES; j++) {
946 status = ixgbe_setup_mac_link_82599(hw, speed,
947 autoneg_wait_to_complete);
948 if (status != IXGBE_SUCCESS)
952 * Wait for the controller to acquire link. Per IEEE 802.3ap,
953 * Section 73.10.2, we may have to wait up to 500ms if KR is
954 * attempted, or 200ms if KX/KX4/BX/BX4 is attempted, per
955 * Table 9 in the AN MAS.
957 for (i = 0; i < 5; i++) {
960 /* If we have link, just jump out */
961 status = ixgbe_check_link(hw, &link_speed, &link_up,
963 if (status != IXGBE_SUCCESS)
972 * We didn't get link. If we advertised KR plus one of KX4/KX
973 * (or BX4/BX), then disable KR and try again.
975 if (((autoc_reg & IXGBE_AUTOC_KR_SUPP) == 0) ||
976 ((autoc_reg & IXGBE_AUTOC_KX4_KX_SUPP_MASK) == 0))
979 /* Turn SmartSpeed on to disable KR support */
980 hw->phy.smart_speed_active = true;
981 status = ixgbe_setup_mac_link_82599(hw, speed,
982 autoneg_wait_to_complete);
983 if (status != IXGBE_SUCCESS)
987 * Wait for the controller to acquire link. 600ms will allow for
988 * the AN link_fail_inhibit_timer as well for multiple cycles of
989 * parallel detect, both 10g and 1g. This allows for the maximum
990 * connect attempts as defined in the AN MAS table 73-7.
992 for (i = 0; i < 6; i++) {
995 /* If we have link, just jump out */
996 status = ixgbe_check_link(hw, &link_speed, &link_up, false);
997 if (status != IXGBE_SUCCESS)
1004 /* We didn't get link. Turn SmartSpeed back off. */
1005 hw->phy.smart_speed_active = false;
1006 status = ixgbe_setup_mac_link_82599(hw, speed,
1007 autoneg_wait_to_complete);
1010 if (link_up && (link_speed == IXGBE_LINK_SPEED_1GB_FULL))
1011 DEBUGOUT("Smartspeed has downgraded the link speed "
1012 "from the maximum advertised\n");
1017 * ixgbe_setup_mac_link_82599 - Set MAC link speed
1018 * @hw: pointer to hardware structure
1019 * @speed: new link speed
1020 * @autoneg_wait_to_complete: true when waiting for completion is needed
1022 * Set the link speed in the AUTOC register and restarts link.
1024 s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw,
1025 ixgbe_link_speed speed,
1026 bool autoneg_wait_to_complete)
1028 bool autoneg = false;
1029 s32 status = IXGBE_SUCCESS;
1030 u32 pma_pmd_1g, link_mode;
1031 u32 current_autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC); /* holds the value of AUTOC register at this current point in time */
1032 u32 orig_autoc = 0; /* holds the cached value of AUTOC register */
1033 u32 autoc = current_autoc; /* Temporary variable used for comparison purposes */
1034 u32 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
1035 u32 pma_pmd_10g_serial = autoc2 & IXGBE_AUTOC2_10G_SERIAL_PMA_PMD_MASK;
1038 ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN;
1040 DEBUGFUNC("ixgbe_setup_mac_link_82599");
1042 /* Check to see if speed passed in is supported. */
1043 status = ixgbe_get_link_capabilities(hw, &link_capabilities, &autoneg);
1047 speed &= link_capabilities;
1049 if (speed == IXGBE_LINK_SPEED_UNKNOWN) {
1050 status = IXGBE_ERR_LINK_SETUP;
1054 /* Use stored value (EEPROM defaults) of AUTOC to find KR/KX4 support*/
1055 if (hw->mac.orig_link_settings_stored)
1056 orig_autoc = hw->mac.orig_autoc;
1060 link_mode = autoc & IXGBE_AUTOC_LMS_MASK;
1061 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;
1063 if (link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR ||
1064 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
1065 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
1066 /* Set KX4/KX/KR support according to speed requested */
1067 autoc &= ~(IXGBE_AUTOC_KX4_KX_SUPP_MASK | IXGBE_AUTOC_KR_SUPP);
1068 if (speed & IXGBE_LINK_SPEED_10GB_FULL) {
1069 if (orig_autoc & IXGBE_AUTOC_KX4_SUPP)
1070 autoc |= IXGBE_AUTOC_KX4_SUPP;
1071 if ((orig_autoc & IXGBE_AUTOC_KR_SUPP) &&
1072 (hw->phy.smart_speed_active == false))
1073 autoc |= IXGBE_AUTOC_KR_SUPP;
1075 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
1076 autoc |= IXGBE_AUTOC_KX_SUPP;
1077 } else if ((pma_pmd_1g == IXGBE_AUTOC_1G_SFI) &&
1078 (link_mode == IXGBE_AUTOC_LMS_1G_LINK_NO_AN ||
1079 link_mode == IXGBE_AUTOC_LMS_1G_AN)) {
1080 /* Switch from 1G SFI to 10G SFI if requested */
1081 if ((speed == IXGBE_LINK_SPEED_10GB_FULL) &&
1082 (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI)) {
1083 autoc &= ~IXGBE_AUTOC_LMS_MASK;
1084 autoc |= IXGBE_AUTOC_LMS_10G_SERIAL;
1086 } else if ((pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI) &&
1087 (link_mode == IXGBE_AUTOC_LMS_10G_SERIAL)) {
1088 /* Switch from 10G SFI to 1G SFI if requested */
1089 if ((speed == IXGBE_LINK_SPEED_1GB_FULL) &&
1090 (pma_pmd_1g == IXGBE_AUTOC_1G_SFI)) {
1091 autoc &= ~IXGBE_AUTOC_LMS_MASK;
1092 if (autoneg || hw->phy.type == ixgbe_phy_qsfp_intel)
1093 autoc |= IXGBE_AUTOC_LMS_1G_AN;
1095 autoc |= IXGBE_AUTOC_LMS_1G_LINK_NO_AN;
1099 if (autoc != current_autoc) {
1101 status = hw->mac.ops.prot_autoc_write(hw, autoc, false);
1102 if (status != IXGBE_SUCCESS)
1105 /* Only poll for autoneg to complete if specified to do so */
1106 if (autoneg_wait_to_complete) {
1107 if (link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR ||
1108 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
1109 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
1110 links_reg = 0; /*Just in case Autoneg time=0*/
1111 for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
1113 IXGBE_READ_REG(hw, IXGBE_LINKS);
1114 if (links_reg & IXGBE_LINKS_KX_AN_COMP)
1118 if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
1120 IXGBE_ERR_AUTONEG_NOT_COMPLETE;
1121 DEBUGOUT("Autoneg did not complete.\n");
1126 /* Add delay to filter out noises during initial link setup */
1135 * ixgbe_setup_copper_link_82599 - Set the PHY autoneg advertised field
1136 * @hw: pointer to hardware structure
1137 * @speed: new link speed
1138 * @autoneg_wait_to_complete: true if waiting is needed to complete
1140 * Restarts link on PHY and MAC based on settings passed in.
1142 STATIC s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw,
1143 ixgbe_link_speed speed,
1144 bool autoneg_wait_to_complete)
1148 DEBUGFUNC("ixgbe_setup_copper_link_82599");
1150 /* Setup the PHY according to input speed */
1151 status = hw->phy.ops.setup_link_speed(hw, speed,
1152 autoneg_wait_to_complete);
1154 ixgbe_start_mac_link_82599(hw, autoneg_wait_to_complete);
1160 * ixgbe_reset_hw_82599 - Perform hardware reset
1161 * @hw: pointer to hardware structure
1163 * Resets the hardware by resetting the transmit and receive units, masks
1164 * and clears all interrupts, perform a PHY reset, and perform a link (MAC)
1167 s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw)
1169 ixgbe_link_speed link_speed;
1172 u32 i, autoc, autoc2;
1174 bool link_up = false;
1176 DEBUGFUNC("ixgbe_reset_hw_82599");
1178 /* Call adapter stop to disable tx/rx and clear interrupts */
1179 status = hw->mac.ops.stop_adapter(hw);
1180 if (status != IXGBE_SUCCESS)
1183 /* flush pending Tx transactions */
1184 ixgbe_clear_tx_pending(hw);
1186 /* PHY ops must be identified and initialized prior to reset */
1188 /* Identify PHY and related function pointers */
1189 status = hw->phy.ops.init(hw);
1191 if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
1194 /* Setup SFP module if there is one present. */
1195 if (hw->phy.sfp_setup_needed) {
1196 status = hw->mac.ops.setup_sfp(hw);
1197 hw->phy.sfp_setup_needed = false;
1200 if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
1204 if (hw->phy.reset_disable == false && hw->phy.ops.reset != NULL)
1205 hw->phy.ops.reset(hw);
1207 /* remember AUTOC from before we reset */
1208 curr_lms = IXGBE_READ_REG(hw, IXGBE_AUTOC) & IXGBE_AUTOC_LMS_MASK;
1212 * Issue global reset to the MAC. Needs to be SW reset if link is up.
1213 * If link reset is used when link is up, it might reset the PHY when
1214 * mng is using it. If link is down or the flag to force full link
1215 * reset is set, then perform link reset.
1217 ctrl = IXGBE_CTRL_LNK_RST;
1218 if (!hw->force_full_reset) {
1219 hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
1221 ctrl = IXGBE_CTRL_RST;
1224 ctrl |= IXGBE_READ_REG(hw, IXGBE_CTRL);
1225 IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
1226 IXGBE_WRITE_FLUSH(hw);
1228 /* Poll for reset bit to self-clear meaning reset is complete */
1229 for (i = 0; i < 10; i++) {
1231 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
1232 if (!(ctrl & IXGBE_CTRL_RST_MASK))
1236 if (ctrl & IXGBE_CTRL_RST_MASK) {
1237 status = IXGBE_ERR_RESET_FAILED;
1238 DEBUGOUT("Reset polling failed to complete.\n");
1244 * Double resets are required for recovery from certain error
1245 * conditions. Between resets, it is necessary to stall to
1246 * allow time for any pending HW events to complete.
1248 if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
1249 hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
1254 * Store the original AUTOC/AUTOC2 values if they have not been
1255 * stored off yet. Otherwise restore the stored original
1256 * values since the reset operation sets back to defaults.
1258 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
1259 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
1261 /* Enable link if disabled in NVM */
1262 if (autoc2 & IXGBE_AUTOC2_LINK_DISABLE_MASK) {
1263 autoc2 &= ~IXGBE_AUTOC2_LINK_DISABLE_MASK;
1264 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2);
1265 IXGBE_WRITE_FLUSH(hw);
1268 if (hw->mac.orig_link_settings_stored == false) {
1269 hw->mac.orig_autoc = autoc;
1270 hw->mac.orig_autoc2 = autoc2;
1271 hw->mac.orig_link_settings_stored = true;
1274 /* If MNG FW is running on a multi-speed device that
1275 * doesn't autoneg with out driver support we need to
1276 * leave LMS in the state it was before we MAC reset.
1277 * Likewise if we support WoL we don't want change the
1280 if ((hw->phy.multispeed_fiber && ixgbe_mng_enabled(hw)) ||
1282 hw->mac.orig_autoc =
1283 (hw->mac.orig_autoc & ~IXGBE_AUTOC_LMS_MASK) |
1286 if (autoc != hw->mac.orig_autoc) {
1287 status = hw->mac.ops.prot_autoc_write(hw,
1290 if (status != IXGBE_SUCCESS)
1294 if ((autoc2 & IXGBE_AUTOC2_UPPER_MASK) !=
1295 (hw->mac.orig_autoc2 & IXGBE_AUTOC2_UPPER_MASK)) {
1296 autoc2 &= ~IXGBE_AUTOC2_UPPER_MASK;
1297 autoc2 |= (hw->mac.orig_autoc2 &
1298 IXGBE_AUTOC2_UPPER_MASK);
1299 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2);
1303 /* Store the permanent mac address */
1304 hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
1307 * Store MAC address from RAR0, clear receive address registers, and
1308 * clear the multicast table. Also reset num_rar_entries to 128,
1309 * since we modify this value when programming the SAN MAC address.
1311 hw->mac.num_rar_entries = 128;
1312 hw->mac.ops.init_rx_addrs(hw);
1314 /* Store the permanent SAN mac address */
1315 hw->mac.ops.get_san_mac_addr(hw, hw->mac.san_addr);
1317 /* Add the SAN MAC address to the RAR only if it's a valid address */
1318 if (ixgbe_validate_mac_addr(hw->mac.san_addr) == 0) {
1319 hw->mac.ops.set_rar(hw, hw->mac.num_rar_entries - 1,
1320 hw->mac.san_addr, 0, IXGBE_RAH_AV);
1322 /* Save the SAN MAC RAR index */
1323 hw->mac.san_mac_rar_index = hw->mac.num_rar_entries - 1;
1325 /* Reserve the last RAR for the SAN MAC address */
1326 hw->mac.num_rar_entries--;
1329 /* Store the alternative WWNN/WWPN prefix */
1330 hw->mac.ops.get_wwn_prefix(hw, &hw->mac.wwnn_prefix,
1331 &hw->mac.wwpn_prefix);
1338 * ixgbe_fdir_check_cmd_complete - poll to check whether FDIRCMD is complete
1339 * @hw: pointer to hardware structure
1341 STATIC s32 ixgbe_fdir_check_cmd_complete(struct ixgbe_hw *hw)
1345 for (i = 0; i < IXGBE_FDIRCMD_CMD_POLL; i++) {
1346 if (!(IXGBE_READ_REG(hw, IXGBE_FDIRCMD) &
1347 IXGBE_FDIRCMD_CMD_MASK))
1348 return IXGBE_SUCCESS;
1352 return IXGBE_ERR_FDIR_CMD_INCOMPLETE;
1356 * ixgbe_reinit_fdir_tables_82599 - Reinitialize Flow Director tables.
1357 * @hw: pointer to hardware structure
1359 s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw)
1363 u32 fdirctrl = IXGBE_READ_REG(hw, IXGBE_FDIRCTRL);
1364 fdirctrl &= ~IXGBE_FDIRCTRL_INIT_DONE;
1366 DEBUGFUNC("ixgbe_reinit_fdir_tables_82599");
1369 * Before starting reinitialization process,
1370 * FDIRCMD.CMD must be zero.
1372 err = ixgbe_fdir_check_cmd_complete(hw);
1374 DEBUGOUT("Flow Director previous command did not complete, aborting table re-initialization.\n");
1378 IXGBE_WRITE_REG(hw, IXGBE_FDIRFREE, 0);
1379 IXGBE_WRITE_FLUSH(hw);
1381 * 82599 adapters flow director init flow cannot be restarted,
1382 * Workaround 82599 silicon errata by performing the following steps
1383 * before re-writing the FDIRCTRL control register with the same value.
1384 * - write 1 to bit 8 of FDIRCMD register &
1385 * - write 0 to bit 8 of FDIRCMD register
1387 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1388 (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) |
1389 IXGBE_FDIRCMD_CLEARHT));
1390 IXGBE_WRITE_FLUSH(hw);
1391 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1392 (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) &
1393 ~IXGBE_FDIRCMD_CLEARHT));
1394 IXGBE_WRITE_FLUSH(hw);
1396 * Clear FDIR Hash register to clear any leftover hashes
1397 * waiting to be programmed.
1399 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, 0x00);
1400 IXGBE_WRITE_FLUSH(hw);
1402 IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
1403 IXGBE_WRITE_FLUSH(hw);
1405 /* Poll init-done after we write FDIRCTRL register */
1406 for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
1407 if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) &
1408 IXGBE_FDIRCTRL_INIT_DONE)
1412 if (i >= IXGBE_FDIR_INIT_DONE_POLL) {
1413 DEBUGOUT("Flow Director Signature poll time exceeded!\n");
1414 return IXGBE_ERR_FDIR_REINIT_FAILED;
1417 /* Clear FDIR statistics registers (read to clear) */
1418 IXGBE_READ_REG(hw, IXGBE_FDIRUSTAT);
1419 IXGBE_READ_REG(hw, IXGBE_FDIRFSTAT);
1420 IXGBE_READ_REG(hw, IXGBE_FDIRMATCH);
1421 IXGBE_READ_REG(hw, IXGBE_FDIRMISS);
1422 IXGBE_READ_REG(hw, IXGBE_FDIRLEN);
1424 return IXGBE_SUCCESS;
1428 * ixgbe_fdir_enable_82599 - Initialize Flow Director control registers
1429 * @hw: pointer to hardware structure
1430 * @fdirctrl: value to write to flow director control register
1432 STATIC void ixgbe_fdir_enable_82599(struct ixgbe_hw *hw, u32 fdirctrl)
1436 DEBUGFUNC("ixgbe_fdir_enable_82599");
1438 /* Prime the keys for hashing */
1439 IXGBE_WRITE_REG(hw, IXGBE_FDIRHKEY, IXGBE_ATR_BUCKET_HASH_KEY);
1440 IXGBE_WRITE_REG(hw, IXGBE_FDIRSKEY, IXGBE_ATR_SIGNATURE_HASH_KEY);
1443 * Poll init-done after we write the register. Estimated times:
1444 * 10G: PBALLOC = 11b, timing is 60us
1445 * 1G: PBALLOC = 11b, timing is 600us
1446 * 100M: PBALLOC = 11b, timing is 6ms
1448 * Multiple these timings by 4 if under full Rx load
1450 * So we'll poll for IXGBE_FDIR_INIT_DONE_POLL times, sleeping for
1451 * 1 msec per poll time. If we're at line rate and drop to 100M, then
1452 * this might not finish in our poll time, but we can live with that
1455 IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
1456 IXGBE_WRITE_FLUSH(hw);
1457 for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
1458 if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) &
1459 IXGBE_FDIRCTRL_INIT_DONE)
1464 if (i >= IXGBE_FDIR_INIT_DONE_POLL)
1465 DEBUGOUT("Flow Director poll time exceeded!\n");
1469 * ixgbe_init_fdir_signature_82599 - Initialize Flow Director signature filters
1470 * @hw: pointer to hardware structure
1471 * @fdirctrl: value to write to flow director control register, initially
1472 * contains just the value of the Rx packet buffer allocation
1474 s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 fdirctrl)
1476 DEBUGFUNC("ixgbe_init_fdir_signature_82599");
1479 * Continue setup of fdirctrl register bits:
1480 * Move the flexible bytes to use the ethertype - shift 6 words
1481 * Set the maximum length per hash bucket to 0xA filters
1482 * Send interrupt when 64 filters are left
1484 fdirctrl |= (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT) |
1485 (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT) |
1486 (4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT);
1488 /* write hashes and fdirctrl register, poll for completion */
1489 ixgbe_fdir_enable_82599(hw, fdirctrl);
1491 return IXGBE_SUCCESS;
1495 * ixgbe_init_fdir_perfect_82599 - Initialize Flow Director perfect filters
1496 * @hw: pointer to hardware structure
1497 * @fdirctrl: value to write to flow director control register, initially
1498 * contains just the value of the Rx packet buffer allocation
1499 * @cloud_mode: true - cloud mode, false - other mode
1501 s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 fdirctrl,
1504 DEBUGFUNC("ixgbe_init_fdir_perfect_82599");
1507 * Continue setup of fdirctrl register bits:
1508 * Turn perfect match filtering on
1509 * Report hash in RSS field of Rx wb descriptor
1510 * Initialize the drop queue
1511 * Move the flexible bytes to use the ethertype - shift 6 words
1512 * Set the maximum length per hash bucket to 0xA filters
1513 * Send interrupt when 64 (0x4 * 16) filters are left
1515 fdirctrl |= IXGBE_FDIRCTRL_PERFECT_MATCH |
1516 IXGBE_FDIRCTRL_REPORT_STATUS |
1517 (IXGBE_FDIR_DROP_QUEUE << IXGBE_FDIRCTRL_DROP_Q_SHIFT) |
1518 (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT) |
1519 (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT) |
1520 (4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT);
1523 fdirctrl |=(IXGBE_FDIRCTRL_FILTERMODE_CLOUD <<
1524 IXGBE_FDIRCTRL_FILTERMODE_SHIFT);
1526 /* write hashes and fdirctrl register, poll for completion */
1527 ixgbe_fdir_enable_82599(hw, fdirctrl);
1529 return IXGBE_SUCCESS;
1533 * These defines allow us to quickly generate all of the necessary instructions
1534 * in the function below by simply calling out IXGBE_COMPUTE_SIG_HASH_ITERATION
1535 * for values 0 through 15
1537 #define IXGBE_ATR_COMMON_HASH_KEY \
1538 (IXGBE_ATR_BUCKET_HASH_KEY & IXGBE_ATR_SIGNATURE_HASH_KEY)
1539 #define IXGBE_COMPUTE_SIG_HASH_ITERATION(_n) \
1542 if (IXGBE_ATR_COMMON_HASH_KEY & (0x01 << n)) \
1543 common_hash ^= lo_hash_dword >> n; \
1544 else if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << n)) \
1545 bucket_hash ^= lo_hash_dword >> n; \
1546 else if (IXGBE_ATR_SIGNATURE_HASH_KEY & (0x01 << n)) \
1547 sig_hash ^= lo_hash_dword << (16 - n); \
1548 if (IXGBE_ATR_COMMON_HASH_KEY & (0x01 << (n + 16))) \
1549 common_hash ^= hi_hash_dword >> n; \
1550 else if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << (n + 16))) \
1551 bucket_hash ^= hi_hash_dword >> n; \
1552 else if (IXGBE_ATR_SIGNATURE_HASH_KEY & (0x01 << (n + 16))) \
1553 sig_hash ^= hi_hash_dword << (16 - n); \
1557 * ixgbe_atr_compute_sig_hash_82599 - Compute the signature hash
1558 * @stream: input bitstream to compute the hash on
1560 * This function is almost identical to the function above but contains
1561 * several optimizations such as unwinding all of the loops, letting the
1562 * compiler work out all of the conditional ifs since the keys are static
1563 * defines, and computing two keys at once since the hashed dword stream
1564 * will be the same for both keys.
1566 u32 ixgbe_atr_compute_sig_hash_82599(union ixgbe_atr_hash_dword input,
1567 union ixgbe_atr_hash_dword common)
1569 u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
1570 u32 sig_hash = 0, bucket_hash = 0, common_hash = 0;
1572 /* record the flow_vm_vlan bits as they are a key part to the hash */
1573 flow_vm_vlan = IXGBE_NTOHL(input.dword);
1575 /* generate common hash dword */
1576 hi_hash_dword = IXGBE_NTOHL(common.dword);
1578 /* low dword is word swapped version of common */
1579 lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
1581 /* apply flow ID/VM pool/VLAN ID bits to hash words */
1582 hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);
1584 /* Process bits 0 and 16 */
1585 IXGBE_COMPUTE_SIG_HASH_ITERATION(0);
1588 * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
1589 * delay this because bit 0 of the stream should not be processed
1590 * so we do not add the VLAN until after bit 0 was processed
1592 lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);
1594 /* Process remaining 30 bit of the key */
1595 IXGBE_COMPUTE_SIG_HASH_ITERATION(1);
1596 IXGBE_COMPUTE_SIG_HASH_ITERATION(2);
1597 IXGBE_COMPUTE_SIG_HASH_ITERATION(3);
1598 IXGBE_COMPUTE_SIG_HASH_ITERATION(4);
1599 IXGBE_COMPUTE_SIG_HASH_ITERATION(5);
1600 IXGBE_COMPUTE_SIG_HASH_ITERATION(6);
1601 IXGBE_COMPUTE_SIG_HASH_ITERATION(7);
1602 IXGBE_COMPUTE_SIG_HASH_ITERATION(8);
1603 IXGBE_COMPUTE_SIG_HASH_ITERATION(9);
1604 IXGBE_COMPUTE_SIG_HASH_ITERATION(10);
1605 IXGBE_COMPUTE_SIG_HASH_ITERATION(11);
1606 IXGBE_COMPUTE_SIG_HASH_ITERATION(12);
1607 IXGBE_COMPUTE_SIG_HASH_ITERATION(13);
1608 IXGBE_COMPUTE_SIG_HASH_ITERATION(14);
1609 IXGBE_COMPUTE_SIG_HASH_ITERATION(15);
1611 /* combine common_hash result with signature and bucket hashes */
1612 bucket_hash ^= common_hash;
1613 bucket_hash &= IXGBE_ATR_HASH_MASK;
1615 sig_hash ^= common_hash << 16;
1616 sig_hash &= IXGBE_ATR_HASH_MASK << 16;
1618 /* return completed signature hash */
1619 return sig_hash ^ bucket_hash;
1623 * ixgbe_atr_add_signature_filter_82599 - Adds a signature hash filter
1624 * @hw: pointer to hardware structure
1625 * @input: unique input dword
1626 * @common: compressed common input dword
1627 * @queue: queue index to direct traffic to
1629 s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
1630 union ixgbe_atr_hash_dword input,
1631 union ixgbe_atr_hash_dword common,
1638 DEBUGFUNC("ixgbe_fdir_add_signature_filter_82599");
1641 * Get the flow_type in order to program FDIRCMD properly
1642 * lowest 2 bits are FDIRCMD.L4TYPE, third lowest bit is FDIRCMD.IPV6
1643 * fifth is FDIRCMD.TUNNEL_FILTER
1645 switch (input.formatted.flow_type) {
1646 case IXGBE_ATR_FLOW_TYPE_TCPV4:
1647 case IXGBE_ATR_FLOW_TYPE_UDPV4:
1648 case IXGBE_ATR_FLOW_TYPE_SCTPV4:
1649 case IXGBE_ATR_FLOW_TYPE_TCPV6:
1650 case IXGBE_ATR_FLOW_TYPE_UDPV6:
1651 case IXGBE_ATR_FLOW_TYPE_SCTPV6:
1654 DEBUGOUT(" Error on flow type input\n");
1655 return IXGBE_ERR_CONFIG;
1658 /* configure FDIRCMD register */
1659 fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE |
1660 IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
1661 fdircmd |= input.formatted.flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
1662 fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
1665 * The lower 32-bits of fdirhashcmd is for FDIRHASH, the upper 32-bits
1666 * is for FDIRCMD. Then do a 64-bit register write from FDIRHASH.
1668 fdirhashcmd = (u64)fdircmd << 32;
1669 fdirhashcmd |= ixgbe_atr_compute_sig_hash_82599(input, common);
1670 IXGBE_WRITE_REG64(hw, IXGBE_FDIRHASH, fdirhashcmd);
1672 err = ixgbe_fdir_check_cmd_complete(hw);
1674 DEBUGOUT("Flow Director command did not complete!\n");
1678 DEBUGOUT2("Tx Queue=%x hash=%x\n", queue, (u32)fdirhashcmd);
1680 return IXGBE_SUCCESS;
1683 #define IXGBE_COMPUTE_BKT_HASH_ITERATION(_n) \
1686 if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << n)) \
1687 bucket_hash ^= lo_hash_dword >> n; \
1688 if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << (n + 16))) \
1689 bucket_hash ^= hi_hash_dword >> n; \
1693 * ixgbe_atr_compute_perfect_hash_82599 - Compute the perfect filter hash
1694 * @atr_input: input bitstream to compute the hash on
1695 * @input_mask: mask for the input bitstream
1697 * This function serves two main purposes. First it applies the input_mask
1698 * to the atr_input resulting in a cleaned up atr_input data stream.
1699 * Secondly it computes the hash and stores it in the bkt_hash field at
1700 * the end of the input byte stream. This way it will be available for
1701 * future use without needing to recompute the hash.
1703 void ixgbe_atr_compute_perfect_hash_82599(union ixgbe_atr_input *input,
1704 union ixgbe_atr_input *input_mask)
1707 u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
1708 u32 bucket_hash = 0;
1712 /* Apply masks to input data */
1713 for (i = 0; i < 14; i++)
1714 input->dword_stream[i] &= input_mask->dword_stream[i];
1716 /* record the flow_vm_vlan bits as they are a key part to the hash */
1717 flow_vm_vlan = IXGBE_NTOHL(input->dword_stream[0]);
1719 /* generate common hash dword */
1720 for (i = 1; i <= 13; i++)
1721 hi_dword ^= input->dword_stream[i];
1722 hi_hash_dword = IXGBE_NTOHL(hi_dword);
1724 /* low dword is word swapped version of common */
1725 lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
1727 /* apply flow ID/VM pool/VLAN ID bits to hash words */
1728 hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);
1730 /* Process bits 0 and 16 */
1731 IXGBE_COMPUTE_BKT_HASH_ITERATION(0);
1734 * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
1735 * delay this because bit 0 of the stream should not be processed
1736 * so we do not add the VLAN until after bit 0 was processed
1738 lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);
1740 /* Process remaining 30 bit of the key */
1741 for (i = 1; i <= 15; i++)
1742 IXGBE_COMPUTE_BKT_HASH_ITERATION(i);
1745 * Limit hash to 13 bits since max bucket count is 8K.
1746 * Store result at the end of the input stream.
1748 input->formatted.bkt_hash = bucket_hash & 0x1FFF;
1752 * ixgbe_get_fdirtcpm_82599 - generate a TCP port from atr_input_masks
1753 * @input_mask: mask to be bit swapped
1755 * The source and destination port masks for flow director are bit swapped
1756 * in that bit 15 effects bit 0, 14 effects 1, 13, 2 etc. In order to
1757 * generate a correctly swapped value we need to bit swap the mask and that
1758 * is what is accomplished by this function.
1760 STATIC u32 ixgbe_get_fdirtcpm_82599(union ixgbe_atr_input *input_mask)
1762 u32 mask = IXGBE_NTOHS(input_mask->formatted.dst_port);
1763 mask <<= IXGBE_FDIRTCPM_DPORTM_SHIFT;
1764 mask |= IXGBE_NTOHS(input_mask->formatted.src_port);
1765 mask = ((mask & 0x55555555) << 1) | ((mask & 0xAAAAAAAA) >> 1);
1766 mask = ((mask & 0x33333333) << 2) | ((mask & 0xCCCCCCCC) >> 2);
1767 mask = ((mask & 0x0F0F0F0F) << 4) | ((mask & 0xF0F0F0F0) >> 4);
1768 return ((mask & 0x00FF00FF) << 8) | ((mask & 0xFF00FF00) >> 8);
1772 * These two macros are meant to address the fact that we have registers
1773 * that are either all or in part big-endian. As a result on big-endian
1774 * systems we will end up byte swapping the value to little-endian before
1775 * it is byte swapped again and written to the hardware in the original
1776 * big-endian format.
1778 #define IXGBE_STORE_AS_BE32(_value) \
1779 (((u32)(_value) >> 24) | (((u32)(_value) & 0x00FF0000) >> 8) | \
1780 (((u32)(_value) & 0x0000FF00) << 8) | ((u32)(_value) << 24))
1782 #define IXGBE_WRITE_REG_BE32(a, reg, value) \
1783 IXGBE_WRITE_REG((a), (reg), IXGBE_STORE_AS_BE32(IXGBE_NTOHL(value)))
1785 #define IXGBE_STORE_AS_BE16(_value) \
1786 IXGBE_NTOHS(((u16)(_value) >> 8) | ((u16)(_value) << 8))
1788 s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
1789 union ixgbe_atr_input *input_mask, bool cloud_mode)
1791 /* mask IPv6 since it is currently not supported */
1792 u32 fdirm = IXGBE_FDIRM_DIPv6;
1795 DEBUGFUNC("ixgbe_fdir_set_atr_input_mask_82599");
1798 * Program the relevant mask registers. If src/dst_port or src/dst_addr
1799 * are zero, then assume a full mask for that field. Also assume that
1800 * a VLAN of 0 is unspecified, so mask that out as well. L4type
1801 * cannot be masked out in this implementation.
1803 * This also assumes IPv4 only. IPv6 masking isn't supported at this
1807 /* verify bucket hash is cleared on hash generation */
1808 if (input_mask->formatted.bkt_hash)
1809 DEBUGOUT(" bucket hash should always be 0 in mask\n");
1811 /* Program FDIRM and verify partial masks */
1812 switch (input_mask->formatted.vm_pool & 0x7F) {
1814 fdirm |= IXGBE_FDIRM_POOL;
1818 DEBUGOUT(" Error on vm pool mask\n");
1819 return IXGBE_ERR_CONFIG;
1822 switch (input_mask->formatted.flow_type & IXGBE_ATR_L4TYPE_MASK) {
1824 fdirm |= IXGBE_FDIRM_L4P;
1825 if (input_mask->formatted.dst_port ||
1826 input_mask->formatted.src_port) {
1827 DEBUGOUT(" Error on src/dst port mask\n");
1828 return IXGBE_ERR_CONFIG;
1830 case IXGBE_ATR_L4TYPE_MASK:
1833 DEBUGOUT(" Error on flow type mask\n");
1834 return IXGBE_ERR_CONFIG;
1837 switch (IXGBE_NTOHS(input_mask->formatted.vlan_id) & 0xEFFF) {
1839 /* mask VLAN ID, fall through to mask VLAN priority */
1840 fdirm |= IXGBE_FDIRM_VLANID;
1842 /* mask VLAN priority */
1843 fdirm |= IXGBE_FDIRM_VLANP;
1846 /* mask VLAN ID only, fall through */
1847 fdirm |= IXGBE_FDIRM_VLANID;
1849 /* no VLAN fields masked */
1852 DEBUGOUT(" Error on VLAN mask\n");
1853 return IXGBE_ERR_CONFIG;
1856 switch (input_mask->formatted.flex_bytes & 0xFFFF) {
1858 /* Mask Flex Bytes, fall through */
1859 fdirm |= IXGBE_FDIRM_FLEX;
1863 DEBUGOUT(" Error on flexible byte mask\n");
1864 return IXGBE_ERR_CONFIG;
1868 fdirm |= IXGBE_FDIRM_L3P;
1869 fdirip6m = ((u32) 0xFFFFU << IXGBE_FDIRIP6M_DIPM_SHIFT);
1870 fdirip6m |= IXGBE_FDIRIP6M_ALWAYS_MASK;
1872 switch (input_mask->formatted.inner_mac[0] & 0xFF) {
1874 /* Mask inner MAC, fall through */
1875 fdirip6m |= IXGBE_FDIRIP6M_INNER_MAC;
1879 DEBUGOUT(" Error on inner_mac byte mask\n");
1880 return IXGBE_ERR_CONFIG;
1883 switch (input_mask->formatted.tni_vni & 0xFFFFFFFF) {
1886 fdirip6m |= IXGBE_FDIRIP6M_TNI_VNI;
1889 fdirip6m |= IXGBE_FDIRIP6M_TNI_VNI_24;
1894 DEBUGOUT(" Error on TNI/VNI byte mask\n");
1895 return IXGBE_ERR_CONFIG;
1898 switch (input_mask->formatted.tunnel_type & 0xFFFF) {
1900 /* Mask turnnel type, fall through */
1901 fdirip6m |= IXGBE_FDIRIP6M_TUNNEL_TYPE;
1905 DEBUGOUT(" Error on tunnel type byte mask\n");
1906 return IXGBE_ERR_CONFIG;
1908 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIP6M, fdirip6m);
1911 /* Now mask VM pool and destination IPv6 - bits 5 and 2 */
1912 IXGBE_WRITE_REG(hw, IXGBE_FDIRM, fdirm);
1914 /* store the TCP/UDP port masks, bit reversed from port layout */
1915 fdirtcpm = ixgbe_get_fdirtcpm_82599(input_mask);
1917 /* write both the same so that UDP and TCP use the same mask */
1918 IXGBE_WRITE_REG(hw, IXGBE_FDIRTCPM, ~fdirtcpm);
1919 IXGBE_WRITE_REG(hw, IXGBE_FDIRUDPM, ~fdirtcpm);
1920 /* also use it for SCTP */
1921 switch (hw->mac.type) {
1922 case ixgbe_mac_X550:
1923 case ixgbe_mac_X550EM_x:
1924 IXGBE_WRITE_REG(hw, IXGBE_FDIRSCTPM, ~fdirtcpm);
1930 /* store source and destination IP masks (big-endian) */
1931 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIP4M,
1932 ~input_mask->formatted.src_ip[0]);
1933 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRDIP4M,
1934 ~input_mask->formatted.dst_ip[0]);
1936 return IXGBE_SUCCESS;
1939 s32 ixgbe_fdir_write_perfect_filter_82599(struct ixgbe_hw *hw,
1940 union ixgbe_atr_input *input,
1941 u16 soft_id, u8 queue, bool cloud_mode)
1943 u32 fdirport, fdirvlan, fdirhash, fdircmd;
1944 u32 addr_low, addr_high;
1948 DEBUGFUNC("ixgbe_fdir_write_perfect_filter_82599");
1950 /* currently IPv6 is not supported, must be programmed with 0 */
1951 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(0),
1952 input->formatted.src_ip[0]);
1953 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(1),
1954 input->formatted.src_ip[1]);
1955 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(2),
1956 input->formatted.src_ip[2]);
1958 /* record the source address (big-endian) */
1959 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPSA, input->formatted.src_ip[0]);
1961 /* record the first 32 bits of the destination address (big-endian) */
1962 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPDA, input->formatted.dst_ip[0]);
1964 /* record source and destination port (little-endian)*/
1965 fdirport = IXGBE_NTOHS(input->formatted.dst_port);
1966 fdirport <<= IXGBE_FDIRPORT_DESTINATION_SHIFT;
1967 fdirport |= IXGBE_NTOHS(input->formatted.src_port);
1968 IXGBE_WRITE_REG(hw, IXGBE_FDIRPORT, fdirport);
1970 /* record VLAN (little-endian) and flex_bytes(big-endian) */
1971 fdirvlan = IXGBE_STORE_AS_BE16(input->formatted.flex_bytes);
1972 fdirvlan <<= IXGBE_FDIRVLAN_FLEX_SHIFT;
1973 fdirvlan |= IXGBE_NTOHS(input->formatted.vlan_id);
1974 IXGBE_WRITE_REG(hw, IXGBE_FDIRVLAN, fdirvlan);
1977 if (input->formatted.tunnel_type != 0)
1978 cloud_type = 0x80000000;
1980 addr_low = ((u32)input->formatted.inner_mac[0] |
1981 ((u32)input->formatted.inner_mac[1] << 8) |
1982 ((u32)input->formatted.inner_mac[2] << 16) |
1983 ((u32)input->formatted.inner_mac[3] << 24));
1984 addr_high = ((u32)input->formatted.inner_mac[4] |
1985 ((u32)input->formatted.inner_mac[5] << 8));
1986 cloud_type |= addr_high;
1987 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(0), addr_low);
1988 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(1), cloud_type);
1989 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(2), input->formatted.tni_vni);
1992 /* configure FDIRHASH register */
1993 fdirhash = input->formatted.bkt_hash;
1994 fdirhash |= soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT;
1995 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
1998 * flush all previous writes to make certain registers are
1999 * programmed prior to issuing the command
2001 IXGBE_WRITE_FLUSH(hw);
2003 /* configure FDIRCMD register */
2004 fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE |
2005 IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
2006 if (queue == IXGBE_FDIR_DROP_QUEUE)
2007 fdircmd |= IXGBE_FDIRCMD_DROP;
2008 if (input->formatted.flow_type & IXGBE_ATR_L4TYPE_TUNNEL_MASK)
2009 fdircmd |= IXGBE_FDIRCMD_TUNNEL_FILTER;
2010 fdircmd |= input->formatted.flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
2011 fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
2012 fdircmd |= (u32)input->formatted.vm_pool << IXGBE_FDIRCMD_VT_POOL_SHIFT;
2014 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, fdircmd);
2015 err = ixgbe_fdir_check_cmd_complete(hw);
2017 DEBUGOUT("Flow Director command did not complete!\n");
2021 return IXGBE_SUCCESS;
2024 s32 ixgbe_fdir_erase_perfect_filter_82599(struct ixgbe_hw *hw,
2025 union ixgbe_atr_input *input,
2032 /* configure FDIRHASH register */
2033 fdirhash = input->formatted.bkt_hash;
2034 fdirhash |= soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT;
2035 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
2037 /* flush hash to HW */
2038 IXGBE_WRITE_FLUSH(hw);
2040 /* Query if filter is present */
2041 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, IXGBE_FDIRCMD_CMD_QUERY_REM_FILT);
2043 err = ixgbe_fdir_check_cmd_complete(hw);
2045 DEBUGOUT("Flow Director command did not complete!\n");
2049 /* if filter exists in hardware then remove it */
2050 if (fdircmd & IXGBE_FDIRCMD_FILTER_VALID) {
2051 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
2052 IXGBE_WRITE_FLUSH(hw);
2053 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
2054 IXGBE_FDIRCMD_CMD_REMOVE_FLOW);
2057 return IXGBE_SUCCESS;
2061 * ixgbe_fdir_add_perfect_filter_82599 - Adds a perfect filter
2062 * @hw: pointer to hardware structure
2063 * @input: input bitstream
2064 * @input_mask: mask for the input bitstream
2065 * @soft_id: software index for the filters
2066 * @queue: queue index to direct traffic to
2068 * Note that the caller to this function must lock before calling, since the
2069 * hardware writes must be protected from one another.
2071 s32 ixgbe_fdir_add_perfect_filter_82599(struct ixgbe_hw *hw,
2072 union ixgbe_atr_input *input,
2073 union ixgbe_atr_input *input_mask,
2074 u16 soft_id, u8 queue, bool cloud_mode)
2076 s32 err = IXGBE_ERR_CONFIG;
2078 DEBUGFUNC("ixgbe_fdir_add_perfect_filter_82599");
2081 * Check flow_type formatting, and bail out before we touch the hardware
2082 * if there's a configuration issue
2084 switch (input->formatted.flow_type) {
2085 case IXGBE_ATR_FLOW_TYPE_IPV4:
2086 case IXGBE_ATR_FLOW_TYPE_TUNNELED_IPV4:
2087 input_mask->formatted.flow_type = IXGBE_ATR_L4TYPE_IPV6_MASK;
2088 if (input->formatted.dst_port || input->formatted.src_port) {
2089 DEBUGOUT(" Error on src/dst port\n");
2090 return IXGBE_ERR_CONFIG;
2093 case IXGBE_ATR_FLOW_TYPE_SCTPV4:
2094 case IXGBE_ATR_FLOW_TYPE_TUNNELED_SCTPV4:
2095 if (input->formatted.dst_port || input->formatted.src_port) {
2096 DEBUGOUT(" Error on src/dst port\n");
2097 return IXGBE_ERR_CONFIG;
2099 case IXGBE_ATR_FLOW_TYPE_TCPV4:
2100 case IXGBE_ATR_FLOW_TYPE_TUNNELED_TCPV4:
2101 case IXGBE_ATR_FLOW_TYPE_UDPV4:
2102 case IXGBE_ATR_FLOW_TYPE_TUNNELED_UDPV4:
2103 input_mask->formatted.flow_type = IXGBE_ATR_L4TYPE_IPV6_MASK |
2104 IXGBE_ATR_L4TYPE_MASK;
2107 DEBUGOUT(" Error on flow type input\n");
2111 /* program input mask into the HW */
2112 err = ixgbe_fdir_set_input_mask_82599(hw, input_mask, cloud_mode);
2116 /* apply mask and compute/store hash */
2117 ixgbe_atr_compute_perfect_hash_82599(input, input_mask);
2119 /* program filters to filter memory */
2120 return ixgbe_fdir_write_perfect_filter_82599(hw, input,
2121 soft_id, queue, cloud_mode);
2125 * ixgbe_read_analog_reg8_82599 - Reads 8 bit Omer analog register
2126 * @hw: pointer to hardware structure
2127 * @reg: analog register to read
2130 * Performs read operation to Omer analog register specified.
2132 s32 ixgbe_read_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 *val)
2136 DEBUGFUNC("ixgbe_read_analog_reg8_82599");
2138 IXGBE_WRITE_REG(hw, IXGBE_CORECTL, IXGBE_CORECTL_WRITE_CMD |
2140 IXGBE_WRITE_FLUSH(hw);
2142 core_ctl = IXGBE_READ_REG(hw, IXGBE_CORECTL);
2143 *val = (u8)core_ctl;
2145 return IXGBE_SUCCESS;
2149 * ixgbe_write_analog_reg8_82599 - Writes 8 bit Omer analog register
2150 * @hw: pointer to hardware structure
2151 * @reg: atlas register to write
2152 * @val: value to write
2154 * Performs write operation to Omer analog register specified.
2156 s32 ixgbe_write_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 val)
2160 DEBUGFUNC("ixgbe_write_analog_reg8_82599");
2162 core_ctl = (reg << 8) | val;
2163 IXGBE_WRITE_REG(hw, IXGBE_CORECTL, core_ctl);
2164 IXGBE_WRITE_FLUSH(hw);
2167 return IXGBE_SUCCESS;
2171 * ixgbe_start_hw_82599 - Prepare hardware for Tx/Rx
2172 * @hw: pointer to hardware structure
2174 * Starts the hardware using the generic start_hw function
2175 * and the generation start_hw function.
2176 * Then performs revision-specific operations, if any.
2178 s32 ixgbe_start_hw_82599(struct ixgbe_hw *hw)
2180 s32 ret_val = IXGBE_SUCCESS;
2182 DEBUGFUNC("ixgbe_start_hw_82599");
2184 ret_val = ixgbe_start_hw_generic(hw);
2185 if (ret_val != IXGBE_SUCCESS)
2188 ret_val = ixgbe_start_hw_gen2(hw);
2189 if (ret_val != IXGBE_SUCCESS)
2192 /* We need to run link autotry after the driver loads */
2193 hw->mac.autotry_restart = true;
2195 if (ret_val == IXGBE_SUCCESS)
2196 ret_val = ixgbe_verify_fw_version_82599(hw);
2202 * ixgbe_identify_phy_82599 - Get physical layer module
2203 * @hw: pointer to hardware structure
2205 * Determines the physical layer module found on the current adapter.
2206 * If PHY already detected, maintains current PHY type in hw struct,
2207 * otherwise executes the PHY detection routine.
2209 s32 ixgbe_identify_phy_82599(struct ixgbe_hw *hw)
2213 DEBUGFUNC("ixgbe_identify_phy_82599");
2215 /* Detect PHY if not unknown - returns success if already detected. */
2216 status = ixgbe_identify_phy_generic(hw);
2217 if (status != IXGBE_SUCCESS) {
2218 /* 82599 10GBASE-T requires an external PHY */
2219 if (hw->mac.ops.get_media_type(hw) == ixgbe_media_type_copper)
2222 status = ixgbe_identify_module_generic(hw);
2225 /* Set PHY type none if no PHY detected */
2226 if (hw->phy.type == ixgbe_phy_unknown) {
2227 hw->phy.type = ixgbe_phy_none;
2228 return IXGBE_SUCCESS;
2231 /* Return error if SFP module has been detected but is not supported */
2232 if (hw->phy.type == ixgbe_phy_sfp_unsupported)
2233 return IXGBE_ERR_SFP_NOT_SUPPORTED;
2239 * ixgbe_get_supported_physical_layer_82599 - Returns physical layer type
2240 * @hw: pointer to hardware structure
2242 * Determines physical layer capabilities of the current configuration.
2244 u32 ixgbe_get_supported_physical_layer_82599(struct ixgbe_hw *hw)
2246 u32 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
2247 u32 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
2248 u32 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
2249 u32 pma_pmd_10g_serial = autoc2 & IXGBE_AUTOC2_10G_SERIAL_PMA_PMD_MASK;
2250 u32 pma_pmd_10g_parallel = autoc & IXGBE_AUTOC_10G_PMA_PMD_MASK;
2251 u32 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;
2252 u16 ext_ability = 0;
2254 DEBUGFUNC("ixgbe_get_support_physical_layer_82599");
2256 hw->phy.ops.identify(hw);
2258 switch (hw->phy.type) {
2260 case ixgbe_phy_cu_unknown:
2261 hw->phy.ops.read_reg(hw, IXGBE_MDIO_PHY_EXT_ABILITY,
2262 IXGBE_MDIO_PMA_PMD_DEV_TYPE, &ext_ability);
2263 if (ext_ability & IXGBE_MDIO_PHY_10GBASET_ABILITY)
2264 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_T;
2265 if (ext_ability & IXGBE_MDIO_PHY_1000BASET_ABILITY)
2266 physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_T;
2267 if (ext_ability & IXGBE_MDIO_PHY_100BASETX_ABILITY)
2268 physical_layer |= IXGBE_PHYSICAL_LAYER_100BASE_TX;
2274 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
2275 case IXGBE_AUTOC_LMS_1G_AN:
2276 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
2277 if (pma_pmd_1g == IXGBE_AUTOC_1G_KX_BX) {
2278 physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_KX |
2279 IXGBE_PHYSICAL_LAYER_1000BASE_BX;
2282 /* SFI mode so read SFP module */
2285 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
2286 if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_CX4)
2287 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_CX4;
2288 else if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_KX4)
2289 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
2290 else if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_XAUI)
2291 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_XAUI;
2294 case IXGBE_AUTOC_LMS_10G_SERIAL:
2295 if (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_KR) {
2296 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KR;
2298 } else if (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI)
2301 case IXGBE_AUTOC_LMS_KX4_KX_KR:
2302 case IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN:
2303 if (autoc & IXGBE_AUTOC_KX_SUPP)
2304 physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_KX;
2305 if (autoc & IXGBE_AUTOC_KX4_SUPP)
2306 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
2307 if (autoc & IXGBE_AUTOC_KR_SUPP)
2308 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KR;
2317 /* SFP check must be done last since DA modules are sometimes used to
2318 * test KR mode - we need to id KR mode correctly before SFP module.
2319 * Call identify_sfp because the pluggable module may have changed */
2320 physical_layer = ixgbe_get_supported_phy_sfp_layer_generic(hw);
2322 return physical_layer;
2326 * ixgbe_enable_rx_dma_82599 - Enable the Rx DMA unit on 82599
2327 * @hw: pointer to hardware structure
2328 * @regval: register value to write to RXCTRL
2330 * Enables the Rx DMA unit for 82599
2332 s32 ixgbe_enable_rx_dma_82599(struct ixgbe_hw *hw, u32 regval)
2335 DEBUGFUNC("ixgbe_enable_rx_dma_82599");
2338 * Workaround for 82599 silicon errata when enabling the Rx datapath.
2339 * If traffic is incoming before we enable the Rx unit, it could hang
2340 * the Rx DMA unit. Therefore, make sure the security engine is
2341 * completely disabled prior to enabling the Rx unit.
2344 hw->mac.ops.disable_sec_rx_path(hw);
2346 if (regval & IXGBE_RXCTRL_RXEN)
2347 ixgbe_enable_rx(hw);
2349 ixgbe_disable_rx(hw);
2351 hw->mac.ops.enable_sec_rx_path(hw);
2353 return IXGBE_SUCCESS;
2357 * ixgbe_verify_fw_version_82599 - verify FW version for 82599
2358 * @hw: pointer to hardware structure
2360 * Verifies that installed the firmware version is 0.6 or higher
2361 * for SFI devices. All 82599 SFI devices should have version 0.6 or higher.
2363 * Returns IXGBE_ERR_EEPROM_VERSION if the FW is not present or
2364 * if the FW version is not supported.
2366 STATIC s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw)
2368 s32 status = IXGBE_ERR_EEPROM_VERSION;
2369 u16 fw_offset, fw_ptp_cfg_offset;
2372 DEBUGFUNC("ixgbe_verify_fw_version_82599");
2374 /* firmware check is only necessary for SFI devices */
2375 if (hw->phy.media_type != ixgbe_media_type_fiber) {
2376 status = IXGBE_SUCCESS;
2377 goto fw_version_out;
2380 /* get the offset to the Firmware Module block */
2381 if (hw->eeprom.ops.read(hw, IXGBE_FW_PTR, &fw_offset)) {
2382 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
2383 "eeprom read at offset %d failed", IXGBE_FW_PTR);
2384 return IXGBE_ERR_EEPROM_VERSION;
2387 if ((fw_offset == 0) || (fw_offset == 0xFFFF))
2388 goto fw_version_out;
2390 /* get the offset to the Pass Through Patch Configuration block */
2391 if (hw->eeprom.ops.read(hw, (fw_offset +
2392 IXGBE_FW_PASSTHROUGH_PATCH_CONFIG_PTR),
2393 &fw_ptp_cfg_offset)) {
2394 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
2395 "eeprom read at offset %d failed",
2397 IXGBE_FW_PASSTHROUGH_PATCH_CONFIG_PTR);
2398 return IXGBE_ERR_EEPROM_VERSION;
2401 if ((fw_ptp_cfg_offset == 0) || (fw_ptp_cfg_offset == 0xFFFF))
2402 goto fw_version_out;
2404 /* get the firmware version */
2405 if (hw->eeprom.ops.read(hw, (fw_ptp_cfg_offset +
2406 IXGBE_FW_PATCH_VERSION_4), &fw_version)) {
2407 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
2408 "eeprom read at offset %d failed",
2409 fw_ptp_cfg_offset + IXGBE_FW_PATCH_VERSION_4);
2410 return IXGBE_ERR_EEPROM_VERSION;
2413 if (fw_version > 0x5)
2414 status = IXGBE_SUCCESS;
2421 * ixgbe_verify_lesm_fw_enabled_82599 - Checks LESM FW module state.
2422 * @hw: pointer to hardware structure
2424 * Returns true if the LESM FW module is present and enabled. Otherwise
2425 * returns false. Smart Speed must be disabled if LESM FW module is enabled.
2427 bool ixgbe_verify_lesm_fw_enabled_82599(struct ixgbe_hw *hw)
2429 bool lesm_enabled = false;
2430 u16 fw_offset, fw_lesm_param_offset, fw_lesm_state;
2433 DEBUGFUNC("ixgbe_verify_lesm_fw_enabled_82599");
2435 /* get the offset to the Firmware Module block */
2436 status = hw->eeprom.ops.read(hw, IXGBE_FW_PTR, &fw_offset);
2438 if ((status != IXGBE_SUCCESS) ||
2439 (fw_offset == 0) || (fw_offset == 0xFFFF))
2442 /* get the offset to the LESM Parameters block */
2443 status = hw->eeprom.ops.read(hw, (fw_offset +
2444 IXGBE_FW_LESM_PARAMETERS_PTR),
2445 &fw_lesm_param_offset);
2447 if ((status != IXGBE_SUCCESS) ||
2448 (fw_lesm_param_offset == 0) || (fw_lesm_param_offset == 0xFFFF))
2451 /* get the LESM state word */
2452 status = hw->eeprom.ops.read(hw, (fw_lesm_param_offset +
2453 IXGBE_FW_LESM_STATE_1),
2456 if ((status == IXGBE_SUCCESS) &&
2457 (fw_lesm_state & IXGBE_FW_LESM_STATE_ENABLED))
2458 lesm_enabled = true;
2461 return lesm_enabled;
2465 * ixgbe_read_eeprom_buffer_82599 - Read EEPROM word(s) using
2466 * fastest available method
2468 * @hw: pointer to hardware structure
2469 * @offset: offset of word in EEPROM to read
2470 * @words: number of words
2471 * @data: word(s) read from the EEPROM
2473 * Retrieves 16 bit word(s) read from EEPROM
2475 STATIC s32 ixgbe_read_eeprom_buffer_82599(struct ixgbe_hw *hw, u16 offset,
2476 u16 words, u16 *data)
2478 struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
2479 s32 ret_val = IXGBE_ERR_CONFIG;
2481 DEBUGFUNC("ixgbe_read_eeprom_buffer_82599");
2484 * If EEPROM is detected and can be addressed using 14 bits,
2485 * use EERD otherwise use bit bang
2487 if ((eeprom->type == ixgbe_eeprom_spi) &&
2488 (offset + (words - 1) <= IXGBE_EERD_MAX_ADDR))
2489 ret_val = ixgbe_read_eerd_buffer_generic(hw, offset, words,
2492 ret_val = ixgbe_read_eeprom_buffer_bit_bang_generic(hw, offset,
2500 * ixgbe_read_eeprom_82599 - Read EEPROM word using
2501 * fastest available method
2503 * @hw: pointer to hardware structure
2504 * @offset: offset of word in the EEPROM to read
2505 * @data: word read from the EEPROM
2507 * Reads a 16 bit word from the EEPROM
2509 STATIC s32 ixgbe_read_eeprom_82599(struct ixgbe_hw *hw,
2510 u16 offset, u16 *data)
2512 struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
2513 s32 ret_val = IXGBE_ERR_CONFIG;
2515 DEBUGFUNC("ixgbe_read_eeprom_82599");
2518 * If EEPROM is detected and can be addressed using 14 bits,
2519 * use EERD otherwise use bit bang
2521 if ((eeprom->type == ixgbe_eeprom_spi) &&
2522 (offset <= IXGBE_EERD_MAX_ADDR))
2523 ret_val = ixgbe_read_eerd_generic(hw, offset, data);
2525 ret_val = ixgbe_read_eeprom_bit_bang_generic(hw, offset, data);
2531 * ixgbe_reset_pipeline_82599 - perform pipeline reset
2533 * @hw: pointer to hardware structure
2535 * Reset pipeline by asserting Restart_AN together with LMS change to ensure
2536 * full pipeline reset. This function assumes the SW/FW lock is held.
2538 s32 ixgbe_reset_pipeline_82599(struct ixgbe_hw *hw)
2542 u32 i, autoc_reg, autoc2_reg;
2544 /* Enable link if disabled in NVM */
2545 autoc2_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
2546 if (autoc2_reg & IXGBE_AUTOC2_LINK_DISABLE_MASK) {
2547 autoc2_reg &= ~IXGBE_AUTOC2_LINK_DISABLE_MASK;
2548 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2_reg);
2549 IXGBE_WRITE_FLUSH(hw);
2552 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
2553 autoc_reg |= IXGBE_AUTOC_AN_RESTART;
2554 /* Write AUTOC register with toggled LMS[2] bit and Restart_AN */
2555 IXGBE_WRITE_REG(hw, IXGBE_AUTOC,
2556 autoc_reg ^ (0x4 << IXGBE_AUTOC_LMS_SHIFT));
2557 /* Wait for AN to leave state 0 */
2558 for (i = 0; i < 10; i++) {
2560 anlp1_reg = IXGBE_READ_REG(hw, IXGBE_ANLP1);
2561 if (anlp1_reg & IXGBE_ANLP1_AN_STATE_MASK)
2565 if (!(anlp1_reg & IXGBE_ANLP1_AN_STATE_MASK)) {
2566 DEBUGOUT("auto negotiation not completed\n");
2567 ret_val = IXGBE_ERR_RESET_FAILED;
2568 goto reset_pipeline_out;
2571 ret_val = IXGBE_SUCCESS;
2574 /* Write AUTOC register with original LMS field and Restart_AN */
2575 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
2576 IXGBE_WRITE_FLUSH(hw);
2583 * ixgbe_read_i2c_byte_82599 - Reads 8 bit word over I2C
2584 * @hw: pointer to hardware structure
2585 * @byte_offset: byte offset to read
2588 * Performs byte read operation to SFP module's EEPROM over I2C interface at
2589 * a specified device address.
2591 STATIC s32 ixgbe_read_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
2592 u8 dev_addr, u8 *data)
2598 DEBUGFUNC("ixgbe_read_i2c_byte_82599");
2600 if (hw->phy.qsfp_shared_i2c_bus == TRUE) {
2601 /* Acquire I2C bus ownership. */
2602 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2603 esdp |= IXGBE_ESDP_SDP0;
2604 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2605 IXGBE_WRITE_FLUSH(hw);
2608 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2609 if (esdp & IXGBE_ESDP_SDP1)
2617 DEBUGOUT("Driver can't access resource,"
2618 " acquiring I2C bus timeout.\n");
2619 status = IXGBE_ERR_I2C;
2620 goto release_i2c_access;
2624 status = ixgbe_read_i2c_byte_generic(hw, byte_offset, dev_addr, data);
2628 if (hw->phy.qsfp_shared_i2c_bus == TRUE) {
2629 /* Release I2C bus ownership. */
2630 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2631 esdp &= ~IXGBE_ESDP_SDP0;
2632 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2633 IXGBE_WRITE_FLUSH(hw);
2640 * ixgbe_write_i2c_byte_82599 - Writes 8 bit word over I2C
2641 * @hw: pointer to hardware structure
2642 * @byte_offset: byte offset to write
2643 * @data: value to write
2645 * Performs byte write operation to SFP module's EEPROM over I2C interface at
2646 * a specified device address.
2648 STATIC s32 ixgbe_write_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
2649 u8 dev_addr, u8 data)
2655 DEBUGFUNC("ixgbe_write_i2c_byte_82599");
2657 if (hw->phy.qsfp_shared_i2c_bus == TRUE) {
2658 /* Acquire I2C bus ownership. */
2659 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2660 esdp |= IXGBE_ESDP_SDP0;
2661 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2662 IXGBE_WRITE_FLUSH(hw);
2665 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2666 if (esdp & IXGBE_ESDP_SDP1)
2674 DEBUGOUT("Driver can't access resource,"
2675 " acquiring I2C bus timeout.\n");
2676 status = IXGBE_ERR_I2C;
2677 goto release_i2c_access;
2681 status = ixgbe_write_i2c_byte_generic(hw, byte_offset, dev_addr, data);
2685 if (hw->phy.qsfp_shared_i2c_bus == TRUE) {
2686 /* Release I2C bus ownership. */
2687 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2688 esdp &= ~IXGBE_ESDP_SDP0;
2689 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2690 IXGBE_WRITE_FLUSH(hw);