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
25 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 POSSIBILITY OF SUCH DAMAGE.
32 ******************************************************************************/
35 #include "ixgbe_type.h"
36 #include "ixgbe_82599.h"
37 #include "ixgbe_api.h"
38 #include "ixgbe_common.h"
39 #include "ixgbe_phy.h"
41 #define IXGBE_82599_MAX_TX_QUEUES 128
42 #define IXGBE_82599_MAX_RX_QUEUES 128
43 #define IXGBE_82599_RAR_ENTRIES 128
44 #define IXGBE_82599_MC_TBL_SIZE 128
45 #define IXGBE_82599_VFT_TBL_SIZE 128
46 #define IXGBE_82599_RX_PB_SIZE 512
48 static s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw,
49 ixgbe_link_speed speed,
50 bool autoneg_wait_to_complete);
51 static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw);
52 static s32 ixgbe_read_eeprom_82599(struct ixgbe_hw *hw,
53 u16 offset, u16 *data);
54 static s32 ixgbe_read_eeprom_buffer_82599(struct ixgbe_hw *hw, u16 offset,
55 u16 words, u16 *data);
56 static s32 ixgbe_read_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
57 u8 dev_addr, u8 *data);
58 static s32 ixgbe_write_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
59 u8 dev_addr, u8 data);
61 void ixgbe_init_mac_link_ops_82599(struct ixgbe_hw *hw)
63 struct ixgbe_mac_info *mac = &hw->mac;
65 DEBUGFUNC("ixgbe_init_mac_link_ops_82599");
68 * enable the laser control functions for SFP+ fiber
71 if ((mac->ops.get_media_type(hw) == ixgbe_media_type_fiber) &&
72 !ixgbe_mng_enabled(hw)) {
73 mac->ops.disable_tx_laser =
74 ixgbe_disable_tx_laser_multispeed_fiber;
75 mac->ops.enable_tx_laser =
76 ixgbe_enable_tx_laser_multispeed_fiber;
77 mac->ops.flap_tx_laser = ixgbe_flap_tx_laser_multispeed_fiber;
80 mac->ops.disable_tx_laser = NULL;
81 mac->ops.enable_tx_laser = NULL;
82 mac->ops.flap_tx_laser = NULL;
85 if (hw->phy.multispeed_fiber) {
86 /* Set up dual speed SFP+ support */
87 mac->ops.setup_link = ixgbe_setup_mac_link_multispeed_fiber;
88 mac->ops.setup_mac_link = ixgbe_setup_mac_link_82599;
89 mac->ops.set_rate_select_speed =
90 ixgbe_set_hard_rate_select_speed;
91 if (ixgbe_get_media_type(hw) == ixgbe_media_type_fiber_fixed)
92 mac->ops.set_rate_select_speed =
93 ixgbe_set_soft_rate_select_speed;
95 if ((ixgbe_get_media_type(hw) == ixgbe_media_type_backplane) &&
96 (hw->phy.smart_speed == ixgbe_smart_speed_auto ||
97 hw->phy.smart_speed == ixgbe_smart_speed_on) &&
98 !ixgbe_verify_lesm_fw_enabled_82599(hw)) {
99 mac->ops.setup_link = ixgbe_setup_mac_link_smartspeed;
101 mac->ops.setup_link = ixgbe_setup_mac_link_82599;
107 * ixgbe_init_phy_ops_82599 - PHY/SFP specific init
108 * @hw: pointer to hardware structure
110 * Initialize any function pointers that were not able to be
111 * set during init_shared_code because the PHY/SFP type was
112 * not known. Perform the SFP init if necessary.
115 s32 ixgbe_init_phy_ops_82599(struct ixgbe_hw *hw)
117 struct ixgbe_mac_info *mac = &hw->mac;
118 struct ixgbe_phy_info *phy = &hw->phy;
119 s32 ret_val = IXGBE_SUCCESS;
122 DEBUGFUNC("ixgbe_init_phy_ops_82599");
124 if (hw->device_id == IXGBE_DEV_ID_82599_QSFP_SF_QP) {
125 /* Store flag indicating I2C bus access control unit. */
126 hw->phy.qsfp_shared_i2c_bus = TRUE;
128 /* Initialize access to QSFP+ I2C bus */
129 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
130 esdp |= IXGBE_ESDP_SDP0_DIR;
131 esdp &= ~IXGBE_ESDP_SDP1_DIR;
132 esdp &= ~IXGBE_ESDP_SDP0;
133 esdp &= ~IXGBE_ESDP_SDP0_NATIVE;
134 esdp &= ~IXGBE_ESDP_SDP1_NATIVE;
135 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
136 IXGBE_WRITE_FLUSH(hw);
138 phy->ops.read_i2c_byte = ixgbe_read_i2c_byte_82599;
139 phy->ops.write_i2c_byte = ixgbe_write_i2c_byte_82599;
141 /* Identify the PHY or SFP module */
142 ret_val = phy->ops.identify(hw);
143 if (ret_val == IXGBE_ERR_SFP_NOT_SUPPORTED)
144 goto init_phy_ops_out;
146 /* Setup function pointers based on detected SFP module and speeds */
147 ixgbe_init_mac_link_ops_82599(hw);
148 if (hw->phy.sfp_type != ixgbe_sfp_type_unknown)
149 hw->phy.ops.reset = NULL;
151 /* If copper media, overwrite with copper function pointers */
152 if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper) {
153 mac->ops.setup_link = ixgbe_setup_copper_link_82599;
154 mac->ops.get_link_capabilities =
155 ixgbe_get_copper_link_capabilities_generic;
158 /* Set necessary function pointers based on PHY type */
159 switch (hw->phy.type) {
161 phy->ops.setup_link = ixgbe_setup_phy_link_tnx;
162 phy->ops.check_link = ixgbe_check_phy_link_tnx;
163 phy->ops.get_firmware_version =
164 ixgbe_get_phy_firmware_version_tnx;
173 s32 ixgbe_setup_sfp_modules_82599(struct ixgbe_hw *hw)
175 s32 ret_val = IXGBE_SUCCESS;
176 u16 list_offset, data_offset, data_value;
178 DEBUGFUNC("ixgbe_setup_sfp_modules_82599");
180 if (hw->phy.sfp_type != ixgbe_sfp_type_unknown) {
181 ixgbe_init_mac_link_ops_82599(hw);
183 hw->phy.ops.reset = NULL;
185 ret_val = ixgbe_get_sfp_init_sequence_offsets(hw, &list_offset,
187 if (ret_val != IXGBE_SUCCESS)
190 /* PHY config will finish before releasing the semaphore */
191 ret_val = hw->mac.ops.acquire_swfw_sync(hw,
192 IXGBE_GSSR_MAC_CSR_SM);
193 if (ret_val != IXGBE_SUCCESS) {
194 ret_val = IXGBE_ERR_SWFW_SYNC;
198 if (hw->eeprom.ops.read(hw, ++data_offset, &data_value))
200 while (data_value != 0xffff) {
201 IXGBE_WRITE_REG(hw, IXGBE_CORECTL, data_value);
202 IXGBE_WRITE_FLUSH(hw);
203 if (hw->eeprom.ops.read(hw, ++data_offset, &data_value))
207 /* Release the semaphore */
208 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
209 /* Delay obtaining semaphore again to allow FW access
210 * prot_autoc_write uses the semaphore too.
212 msec_delay(hw->eeprom.semaphore_delay);
214 /* Restart DSP and set SFI mode */
215 ret_val = hw->mac.ops.prot_autoc_write(hw,
216 hw->mac.orig_autoc | IXGBE_AUTOC_LMS_10G_SERIAL,
220 DEBUGOUT("sfp module setup not complete\n");
221 ret_val = IXGBE_ERR_SFP_SETUP_NOT_COMPLETE;
231 /* Release the semaphore */
232 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
233 /* Delay obtaining semaphore again to allow FW access */
234 msec_delay(hw->eeprom.semaphore_delay);
235 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
236 "eeprom read at offset %d failed", data_offset);
237 return IXGBE_ERR_PHY;
241 * prot_autoc_read_82599 - Hides MAC differences needed for AUTOC read
242 * @hw: pointer to hardware structure
243 * @locked: Return the if we locked for this read.
244 * @reg_val: Value we read from AUTOC
246 * For this part (82599) we need to wrap read-modify-writes with a possible
247 * FW/SW lock. It is assumed this lock will be freed with the next
248 * prot_autoc_write_82599().
250 s32 prot_autoc_read_82599(struct ixgbe_hw *hw, bool *locked, u32 *reg_val)
255 /* If LESM is on then we need to hold the SW/FW semaphore. */
256 if (ixgbe_verify_lesm_fw_enabled_82599(hw)) {
257 ret_val = hw->mac.ops.acquire_swfw_sync(hw,
258 IXGBE_GSSR_MAC_CSR_SM);
259 if (ret_val != IXGBE_SUCCESS)
260 return IXGBE_ERR_SWFW_SYNC;
265 *reg_val = IXGBE_READ_REG(hw, IXGBE_AUTOC);
266 return IXGBE_SUCCESS;
270 * prot_autoc_write_82599 - Hides MAC differences needed for AUTOC write
271 * @hw: pointer to hardware structure
272 * @reg_val: value to write to AUTOC
273 * @locked: bool to indicate whether the SW/FW lock was already taken by
274 * previous proc_autoc_read_82599.
276 * This part (82599) may need to hold the SW/FW lock around all writes to
277 * AUTOC. Likewise after a write we need to do a pipeline reset.
279 s32 prot_autoc_write_82599(struct ixgbe_hw *hw, u32 autoc, bool locked)
281 s32 ret_val = IXGBE_SUCCESS;
283 /* Blocked by MNG FW so bail */
284 if (ixgbe_check_reset_blocked(hw))
287 /* We only need to get the lock if:
288 * - We didn't do it already (in the read part of a read-modify-write)
291 if (!locked && ixgbe_verify_lesm_fw_enabled_82599(hw)) {
292 ret_val = hw->mac.ops.acquire_swfw_sync(hw,
293 IXGBE_GSSR_MAC_CSR_SM);
294 if (ret_val != IXGBE_SUCCESS)
295 return IXGBE_ERR_SWFW_SYNC;
300 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc);
301 ret_val = ixgbe_reset_pipeline_82599(hw);
304 /* Free the SW/FW semaphore as we either grabbed it here or
305 * already had it when this function was called.
308 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
314 * ixgbe_init_ops_82599 - Inits func ptrs and MAC type
315 * @hw: pointer to hardware structure
317 * Initialize the function pointers and assign the MAC type for 82599.
318 * Does not touch the hardware.
321 s32 ixgbe_init_ops_82599(struct ixgbe_hw *hw)
323 struct ixgbe_mac_info *mac = &hw->mac;
324 struct ixgbe_phy_info *phy = &hw->phy;
325 struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
328 DEBUGFUNC("ixgbe_init_ops_82599");
330 ixgbe_init_phy_ops_generic(hw);
331 ret_val = ixgbe_init_ops_generic(hw);
334 phy->ops.identify = ixgbe_identify_phy_82599;
335 phy->ops.init = ixgbe_init_phy_ops_82599;
338 mac->ops.reset_hw = ixgbe_reset_hw_82599;
339 mac->ops.enable_relaxed_ordering = ixgbe_enable_relaxed_ordering_gen2;
340 mac->ops.get_media_type = ixgbe_get_media_type_82599;
341 mac->ops.get_supported_physical_layer =
342 ixgbe_get_supported_physical_layer_82599;
343 mac->ops.disable_sec_rx_path = ixgbe_disable_sec_rx_path_generic;
344 mac->ops.enable_sec_rx_path = ixgbe_enable_sec_rx_path_generic;
345 mac->ops.enable_rx_dma = ixgbe_enable_rx_dma_82599;
346 mac->ops.read_analog_reg8 = ixgbe_read_analog_reg8_82599;
347 mac->ops.write_analog_reg8 = ixgbe_write_analog_reg8_82599;
348 mac->ops.start_hw = ixgbe_start_hw_82599;
349 mac->ops.get_san_mac_addr = ixgbe_get_san_mac_addr_generic;
350 mac->ops.set_san_mac_addr = ixgbe_set_san_mac_addr_generic;
351 mac->ops.get_device_caps = ixgbe_get_device_caps_generic;
352 mac->ops.get_wwn_prefix = ixgbe_get_wwn_prefix_generic;
353 mac->ops.get_fcoe_boot_status = ixgbe_get_fcoe_boot_status_generic;
354 mac->ops.prot_autoc_read = prot_autoc_read_82599;
355 mac->ops.prot_autoc_write = prot_autoc_write_82599;
357 /* RAR, Multicast, VLAN */
358 mac->ops.set_vmdq = ixgbe_set_vmdq_generic;
359 mac->ops.set_vmdq_san_mac = ixgbe_set_vmdq_san_mac_generic;
360 mac->ops.clear_vmdq = ixgbe_clear_vmdq_generic;
361 mac->ops.insert_mac_addr = ixgbe_insert_mac_addr_generic;
362 mac->rar_highwater = 1;
363 mac->ops.set_vfta = ixgbe_set_vfta_generic;
364 mac->ops.set_vlvf = ixgbe_set_vlvf_generic;
365 mac->ops.clear_vfta = ixgbe_clear_vfta_generic;
366 mac->ops.init_uta_tables = ixgbe_init_uta_tables_generic;
367 mac->ops.setup_sfp = ixgbe_setup_sfp_modules_82599;
368 mac->ops.set_mac_anti_spoofing = ixgbe_set_mac_anti_spoofing;
369 mac->ops.set_vlan_anti_spoofing = ixgbe_set_vlan_anti_spoofing;
372 mac->ops.get_link_capabilities = ixgbe_get_link_capabilities_82599;
373 mac->ops.check_link = ixgbe_check_mac_link_generic;
374 mac->ops.setup_rxpba = ixgbe_set_rxpba_generic;
375 ixgbe_init_mac_link_ops_82599(hw);
377 mac->mcft_size = IXGBE_82599_MC_TBL_SIZE;
378 mac->vft_size = IXGBE_82599_VFT_TBL_SIZE;
379 mac->num_rar_entries = IXGBE_82599_RAR_ENTRIES;
380 mac->rx_pb_size = IXGBE_82599_RX_PB_SIZE;
381 mac->max_rx_queues = IXGBE_82599_MAX_RX_QUEUES;
382 mac->max_tx_queues = IXGBE_82599_MAX_TX_QUEUES;
383 mac->max_msix_vectors = ixgbe_get_pcie_msix_count_generic(hw);
385 mac->arc_subsystem_valid = (IXGBE_READ_REG(hw, IXGBE_FWSM) &
386 IXGBE_FWSM_MODE_MASK) ? TRUE : FALSE;
388 hw->mbx.ops.init_params = ixgbe_init_mbx_params_pf;
391 eeprom->ops.read = ixgbe_read_eeprom_82599;
392 eeprom->ops.read_buffer = ixgbe_read_eeprom_buffer_82599;
394 /* Manageability interface */
395 mac->ops.set_fw_drv_ver = ixgbe_set_fw_drv_ver_generic;
398 mac->ops.get_rtrup2tc = ixgbe_dcb_get_rtrup2tc_generic;
404 * ixgbe_get_link_capabilities_82599 - Determines link capabilities
405 * @hw: pointer to hardware structure
406 * @speed: pointer to link speed
407 * @autoneg: TRUE when autoneg or autotry is enabled
409 * Determines the link capabilities by reading the AUTOC register.
411 s32 ixgbe_get_link_capabilities_82599(struct ixgbe_hw *hw,
412 ixgbe_link_speed *speed,
415 s32 status = IXGBE_SUCCESS;
418 DEBUGFUNC("ixgbe_get_link_capabilities_82599");
421 /* Check if 1G SFP module. */
422 if (hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core0 ||
423 hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core1 ||
424 hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core0 ||
425 hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core1) {
426 *speed = IXGBE_LINK_SPEED_1GB_FULL;
432 * Determine link capabilities based on the stored value of AUTOC,
433 * which represents EEPROM defaults. If AUTOC value has not
434 * been stored, use the current register values.
436 if (hw->mac.orig_link_settings_stored)
437 autoc = hw->mac.orig_autoc;
439 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
441 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
442 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
443 *speed = IXGBE_LINK_SPEED_1GB_FULL;
447 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
448 *speed = IXGBE_LINK_SPEED_10GB_FULL;
452 case IXGBE_AUTOC_LMS_1G_AN:
453 *speed = IXGBE_LINK_SPEED_1GB_FULL;
457 case IXGBE_AUTOC_LMS_10G_SERIAL:
458 *speed = IXGBE_LINK_SPEED_10GB_FULL;
462 case IXGBE_AUTOC_LMS_KX4_KX_KR:
463 case IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN:
464 *speed = IXGBE_LINK_SPEED_UNKNOWN;
465 if (autoc & IXGBE_AUTOC_KR_SUPP)
466 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
467 if (autoc & IXGBE_AUTOC_KX4_SUPP)
468 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
469 if (autoc & IXGBE_AUTOC_KX_SUPP)
470 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
474 case IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII:
475 *speed = IXGBE_LINK_SPEED_100_FULL;
476 if (autoc & IXGBE_AUTOC_KR_SUPP)
477 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
478 if (autoc & IXGBE_AUTOC_KX4_SUPP)
479 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
480 if (autoc & IXGBE_AUTOC_KX_SUPP)
481 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
485 case IXGBE_AUTOC_LMS_SGMII_1G_100M:
486 *speed = IXGBE_LINK_SPEED_1GB_FULL | IXGBE_LINK_SPEED_100_FULL;
491 status = IXGBE_ERR_LINK_SETUP;
496 if (hw->phy.multispeed_fiber) {
497 *speed |= IXGBE_LINK_SPEED_10GB_FULL |
498 IXGBE_LINK_SPEED_1GB_FULL;
500 /* QSFP must not enable full auto-negotiation
501 * Limited autoneg is enabled at 1G
503 if (hw->phy.media_type == ixgbe_media_type_fiber_qsfp)
514 * ixgbe_get_media_type_82599 - Get media type
515 * @hw: pointer to hardware structure
517 * Returns the media type (fiber, copper, backplane)
519 enum ixgbe_media_type ixgbe_get_media_type_82599(struct ixgbe_hw *hw)
521 enum ixgbe_media_type media_type;
523 DEBUGFUNC("ixgbe_get_media_type_82599");
525 /* Detect if there is a copper PHY attached. */
526 switch (hw->phy.type) {
527 case ixgbe_phy_cu_unknown:
529 media_type = ixgbe_media_type_copper;
535 switch (hw->device_id) {
536 case IXGBE_DEV_ID_82599_KX4:
537 case IXGBE_DEV_ID_82599_KX4_MEZZ:
538 case IXGBE_DEV_ID_82599_COMBO_BACKPLANE:
539 case IXGBE_DEV_ID_82599_KR:
540 case IXGBE_DEV_ID_82599_BACKPLANE_FCOE:
541 case IXGBE_DEV_ID_82599_XAUI_LOM:
542 /* Default device ID is mezzanine card KX/KX4 */
543 media_type = ixgbe_media_type_backplane;
545 case IXGBE_DEV_ID_82599_SFP:
546 case IXGBE_DEV_ID_82599_SFP_FCOE:
547 case IXGBE_DEV_ID_82599_SFP_EM:
548 case IXGBE_DEV_ID_82599_SFP_SF2:
549 case IXGBE_DEV_ID_82599_SFP_SF_QP:
550 case IXGBE_DEV_ID_82599EN_SFP:
551 media_type = ixgbe_media_type_fiber;
553 case IXGBE_DEV_ID_82599_CX4:
554 media_type = ixgbe_media_type_cx4;
556 case IXGBE_DEV_ID_82599_T3_LOM:
557 media_type = ixgbe_media_type_copper;
559 case IXGBE_DEV_ID_82599_QSFP_SF_QP:
560 media_type = ixgbe_media_type_fiber_qsfp;
562 case IXGBE_DEV_ID_82599_BYPASS:
563 media_type = ixgbe_media_type_fiber_fixed;
564 hw->phy.multispeed_fiber = TRUE;
567 media_type = ixgbe_media_type_unknown;
575 * ixgbe_stop_mac_link_on_d3_82599 - Disables link on D3
576 * @hw: pointer to hardware structure
578 * Disables link during D3 power down sequence.
581 void ixgbe_stop_mac_link_on_d3_82599(struct ixgbe_hw *hw)
586 DEBUGFUNC("ixgbe_stop_mac_link_on_d3_82599");
587 ixgbe_read_eeprom(hw, IXGBE_EEPROM_CTRL_2, &ee_ctrl_2);
589 if (!ixgbe_mng_present(hw) && !hw->wol_enabled &&
590 ee_ctrl_2 & IXGBE_EEPROM_CCD_BIT) {
591 autoc2_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
592 autoc2_reg |= IXGBE_AUTOC2_LINK_DISABLE_ON_D3_MASK;
593 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2_reg);
598 * ixgbe_start_mac_link_82599 - Setup MAC link settings
599 * @hw: pointer to hardware structure
600 * @autoneg_wait_to_complete: TRUE when waiting for completion is needed
602 * Configures link settings based on values in the ixgbe_hw struct.
603 * Restarts the link. Performs autonegotiation if needed.
605 s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw,
606 bool autoneg_wait_to_complete)
611 s32 status = IXGBE_SUCCESS;
612 bool got_lock = FALSE;
614 DEBUGFUNC("ixgbe_start_mac_link_82599");
617 /* reset_pipeline requires us to hold this lock as it writes to
620 if (ixgbe_verify_lesm_fw_enabled_82599(hw)) {
621 status = hw->mac.ops.acquire_swfw_sync(hw,
622 IXGBE_GSSR_MAC_CSR_SM);
623 if (status != IXGBE_SUCCESS)
630 ixgbe_reset_pipeline_82599(hw);
633 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
635 /* Only poll for autoneg to complete if specified to do so */
636 if (autoneg_wait_to_complete) {
637 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
638 if ((autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
639 IXGBE_AUTOC_LMS_KX4_KX_KR ||
640 (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
641 IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
642 (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
643 IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
644 links_reg = 0; /* Just in case Autoneg time = 0 */
645 for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
646 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
647 if (links_reg & IXGBE_LINKS_KX_AN_COMP)
651 if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
652 status = IXGBE_ERR_AUTONEG_NOT_COMPLETE;
653 DEBUGOUT("Autoneg did not complete.\n");
658 /* Add delay to filter out noises during initial link setup */
666 * ixgbe_disable_tx_laser_multispeed_fiber - Disable Tx laser
667 * @hw: pointer to hardware structure
669 * The base drivers may require better control over SFP+ module
670 * PHY states. This includes selectively shutting down the Tx
671 * laser on the PHY, effectively halting physical link.
673 void ixgbe_disable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
675 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
677 /* Blocked by MNG FW so bail */
678 if (ixgbe_check_reset_blocked(hw))
681 /* Disable Tx laser; allow 100us to go dark per spec */
682 esdp_reg |= IXGBE_ESDP_SDP3;
683 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
684 IXGBE_WRITE_FLUSH(hw);
689 * ixgbe_enable_tx_laser_multispeed_fiber - Enable Tx laser
690 * @hw: pointer to hardware structure
692 * The base drivers may require better control over SFP+ module
693 * PHY states. This includes selectively turning on the Tx
694 * laser on the PHY, effectively starting physical link.
696 void ixgbe_enable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
698 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
700 /* Enable Tx laser; allow 100ms to light up */
701 esdp_reg &= ~IXGBE_ESDP_SDP3;
702 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
703 IXGBE_WRITE_FLUSH(hw);
708 * ixgbe_flap_tx_laser_multispeed_fiber - Flap Tx laser
709 * @hw: pointer to hardware structure
711 * When the driver changes the link speeds that it can support,
712 * it sets autotry_restart to TRUE to indicate that we need to
713 * initiate a new autotry session with the link partner. To do
714 * so, we set the speed then disable and re-enable the Tx laser, to
715 * alert the link partner that it also needs to restart autotry on its
716 * end. This is consistent with TRUE clause 37 autoneg, which also
717 * involves a loss of signal.
719 void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
721 DEBUGFUNC("ixgbe_flap_tx_laser_multispeed_fiber");
723 /* Blocked by MNG FW so bail */
724 if (ixgbe_check_reset_blocked(hw))
727 if (hw->mac.autotry_restart) {
728 ixgbe_disable_tx_laser_multispeed_fiber(hw);
729 ixgbe_enable_tx_laser_multispeed_fiber(hw);
730 hw->mac.autotry_restart = FALSE;
735 * ixgbe_set_hard_rate_select_speed - Set module link speed
736 * @hw: pointer to hardware structure
737 * @speed: link speed to set
739 * Set module link speed via RS0/RS1 rate select pins.
741 void ixgbe_set_hard_rate_select_speed(struct ixgbe_hw *hw,
742 ixgbe_link_speed speed)
744 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
747 case IXGBE_LINK_SPEED_10GB_FULL:
748 esdp_reg |= (IXGBE_ESDP_SDP5_DIR | IXGBE_ESDP_SDP5);
750 case IXGBE_LINK_SPEED_1GB_FULL:
751 esdp_reg &= ~IXGBE_ESDP_SDP5;
752 esdp_reg |= IXGBE_ESDP_SDP5_DIR;
755 DEBUGOUT("Invalid fixed module speed\n");
759 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
760 IXGBE_WRITE_FLUSH(hw);
764 * ixgbe_setup_mac_link_smartspeed - Set MAC link speed using SmartSpeed
765 * @hw: pointer to hardware structure
766 * @speed: new link speed
767 * @autoneg_wait_to_complete: TRUE when waiting for completion is needed
769 * Implements the Intel SmartSpeed algorithm.
771 s32 ixgbe_setup_mac_link_smartspeed(struct ixgbe_hw *hw,
772 ixgbe_link_speed speed,
773 bool autoneg_wait_to_complete)
775 s32 status = IXGBE_SUCCESS;
776 ixgbe_link_speed link_speed = IXGBE_LINK_SPEED_UNKNOWN;
778 bool link_up = FALSE;
779 u32 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
781 DEBUGFUNC("ixgbe_setup_mac_link_smartspeed");
783 /* Set autoneg_advertised value based on input link speed */
784 hw->phy.autoneg_advertised = 0;
786 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
787 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_10GB_FULL;
789 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
790 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_1GB_FULL;
792 if (speed & IXGBE_LINK_SPEED_100_FULL)
793 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_100_FULL;
796 * Implement Intel SmartSpeed algorithm. SmartSpeed will reduce the
797 * autoneg advertisement if link is unable to be established at the
798 * highest negotiated rate. This can sometimes happen due to integrity
799 * issues with the physical media connection.
802 /* First, try to get link with full advertisement */
803 hw->phy.smart_speed_active = FALSE;
804 for (j = 0; j < IXGBE_SMARTSPEED_MAX_RETRIES; j++) {
805 status = ixgbe_setup_mac_link_82599(hw, speed,
806 autoneg_wait_to_complete);
807 if (status != IXGBE_SUCCESS)
811 * Wait for the controller to acquire link. Per IEEE 802.3ap,
812 * Section 73.10.2, we may have to wait up to 500ms if KR is
813 * attempted, or 200ms if KX/KX4/BX/BX4 is attempted, per
814 * Table 9 in the AN MAS.
816 for (i = 0; i < 5; i++) {
819 /* If we have link, just jump out */
820 status = ixgbe_check_link(hw, &link_speed, &link_up,
822 if (status != IXGBE_SUCCESS)
831 * We didn't get link. If we advertised KR plus one of KX4/KX
832 * (or BX4/BX), then disable KR and try again.
834 if (((autoc_reg & IXGBE_AUTOC_KR_SUPP) == 0) ||
835 ((autoc_reg & IXGBE_AUTOC_KX4_KX_SUPP_MASK) == 0))
838 /* Turn SmartSpeed on to disable KR support */
839 hw->phy.smart_speed_active = TRUE;
840 status = ixgbe_setup_mac_link_82599(hw, speed,
841 autoneg_wait_to_complete);
842 if (status != IXGBE_SUCCESS)
846 * Wait for the controller to acquire link. 600ms will allow for
847 * the AN link_fail_inhibit_timer as well for multiple cycles of
848 * parallel detect, both 10g and 1g. This allows for the maximum
849 * connect attempts as defined in the AN MAS table 73-7.
851 for (i = 0; i < 6; i++) {
854 /* If we have link, just jump out */
855 status = ixgbe_check_link(hw, &link_speed, &link_up, FALSE);
856 if (status != IXGBE_SUCCESS)
863 /* We didn't get link. Turn SmartSpeed back off. */
864 hw->phy.smart_speed_active = FALSE;
865 status = ixgbe_setup_mac_link_82599(hw, speed,
866 autoneg_wait_to_complete);
869 if (link_up && (link_speed == IXGBE_LINK_SPEED_1GB_FULL))
870 DEBUGOUT("Smartspeed has downgraded the link speed "
871 "from the maximum advertised\n");
876 * ixgbe_setup_mac_link_82599 - Set MAC link speed
877 * @hw: pointer to hardware structure
878 * @speed: new link speed
879 * @autoneg_wait_to_complete: TRUE when waiting for completion is needed
881 * Set the link speed in the AUTOC register and restarts link.
883 s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw,
884 ixgbe_link_speed speed,
885 bool autoneg_wait_to_complete)
887 bool autoneg = FALSE;
888 s32 status = IXGBE_SUCCESS;
889 u32 pma_pmd_1g, link_mode;
890 u32 current_autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC); /* holds the value of AUTOC register at this current point in time */
891 u32 orig_autoc = 0; /* holds the cached value of AUTOC register */
892 u32 autoc = current_autoc; /* Temporary variable used for comparison purposes */
893 u32 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
894 u32 pma_pmd_10g_serial = autoc2 & IXGBE_AUTOC2_10G_SERIAL_PMA_PMD_MASK;
897 ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN;
899 DEBUGFUNC("ixgbe_setup_mac_link_82599");
901 /* Check to see if speed passed in is supported. */
902 status = ixgbe_get_link_capabilities(hw, &link_capabilities, &autoneg);
906 speed &= link_capabilities;
908 if (speed == IXGBE_LINK_SPEED_UNKNOWN) {
909 status = IXGBE_ERR_LINK_SETUP;
913 /* Use stored value (EEPROM defaults) of AUTOC to find KR/KX4 support*/
914 if (hw->mac.orig_link_settings_stored)
915 orig_autoc = hw->mac.orig_autoc;
919 link_mode = autoc & IXGBE_AUTOC_LMS_MASK;
920 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;
922 if (link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR ||
923 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
924 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
925 /* Set KX4/KX/KR support according to speed requested */
926 autoc &= ~(IXGBE_AUTOC_KX4_KX_SUPP_MASK | IXGBE_AUTOC_KR_SUPP);
927 if (speed & IXGBE_LINK_SPEED_10GB_FULL) {
928 if (orig_autoc & IXGBE_AUTOC_KX4_SUPP)
929 autoc |= IXGBE_AUTOC_KX4_SUPP;
930 if ((orig_autoc & IXGBE_AUTOC_KR_SUPP) &&
931 (hw->phy.smart_speed_active == FALSE))
932 autoc |= IXGBE_AUTOC_KR_SUPP;
934 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
935 autoc |= IXGBE_AUTOC_KX_SUPP;
936 } else if ((pma_pmd_1g == IXGBE_AUTOC_1G_SFI) &&
937 (link_mode == IXGBE_AUTOC_LMS_1G_LINK_NO_AN ||
938 link_mode == IXGBE_AUTOC_LMS_1G_AN)) {
939 /* Switch from 1G SFI to 10G SFI if requested */
940 if ((speed == IXGBE_LINK_SPEED_10GB_FULL) &&
941 (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI)) {
942 autoc &= ~IXGBE_AUTOC_LMS_MASK;
943 autoc |= IXGBE_AUTOC_LMS_10G_SERIAL;
945 } else if ((pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI) &&
946 (link_mode == IXGBE_AUTOC_LMS_10G_SERIAL)) {
947 /* Switch from 10G SFI to 1G SFI if requested */
948 if ((speed == IXGBE_LINK_SPEED_1GB_FULL) &&
949 (pma_pmd_1g == IXGBE_AUTOC_1G_SFI)) {
950 autoc &= ~IXGBE_AUTOC_LMS_MASK;
951 if (autoneg || hw->phy.type == ixgbe_phy_qsfp_intel)
952 autoc |= IXGBE_AUTOC_LMS_1G_AN;
954 autoc |= IXGBE_AUTOC_LMS_1G_LINK_NO_AN;
958 if (autoc != current_autoc) {
960 status = hw->mac.ops.prot_autoc_write(hw, autoc, FALSE);
961 if (status != IXGBE_SUCCESS)
964 /* Only poll for autoneg to complete if specified to do so */
965 if (autoneg_wait_to_complete) {
966 if (link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR ||
967 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
968 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
969 links_reg = 0; /*Just in case Autoneg time=0*/
970 for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
972 IXGBE_READ_REG(hw, IXGBE_LINKS);
973 if (links_reg & IXGBE_LINKS_KX_AN_COMP)
977 if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
979 IXGBE_ERR_AUTONEG_NOT_COMPLETE;
980 DEBUGOUT("Autoneg did not complete.\n");
985 /* Add delay to filter out noises during initial link setup */
994 * ixgbe_setup_copper_link_82599 - Set the PHY autoneg advertised field
995 * @hw: pointer to hardware structure
996 * @speed: new link speed
997 * @autoneg_wait_to_complete: TRUE if waiting is needed to complete
999 * Restarts link on PHY and MAC based on settings passed in.
1001 static s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw,
1002 ixgbe_link_speed speed,
1003 bool autoneg_wait_to_complete)
1007 DEBUGFUNC("ixgbe_setup_copper_link_82599");
1009 /* Setup the PHY according to input speed */
1010 status = hw->phy.ops.setup_link_speed(hw, speed,
1011 autoneg_wait_to_complete);
1013 ixgbe_start_mac_link_82599(hw, autoneg_wait_to_complete);
1019 * ixgbe_reset_hw_82599 - Perform hardware reset
1020 * @hw: pointer to hardware structure
1022 * Resets the hardware by resetting the transmit and receive units, masks
1023 * and clears all interrupts, perform a PHY reset, and perform a link (MAC)
1026 s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw)
1028 ixgbe_link_speed link_speed;
1031 u32 i, autoc, autoc2;
1033 bool link_up = FALSE;
1035 DEBUGFUNC("ixgbe_reset_hw_82599");
1037 /* Call adapter stop to disable tx/rx and clear interrupts */
1038 status = hw->mac.ops.stop_adapter(hw);
1039 if (status != IXGBE_SUCCESS)
1042 /* flush pending Tx transactions */
1043 ixgbe_clear_tx_pending(hw);
1045 /* PHY ops must be identified and initialized prior to reset */
1047 /* Identify PHY and related function pointers */
1048 status = hw->phy.ops.init(hw);
1050 if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
1053 /* Setup SFP module if there is one present. */
1054 if (hw->phy.sfp_setup_needed) {
1055 status = hw->mac.ops.setup_sfp(hw);
1056 hw->phy.sfp_setup_needed = FALSE;
1059 if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
1063 if (hw->phy.reset_disable == FALSE && hw->phy.ops.reset != NULL)
1064 hw->phy.ops.reset(hw);
1066 /* remember AUTOC from before we reset */
1067 curr_lms = IXGBE_READ_REG(hw, IXGBE_AUTOC) & IXGBE_AUTOC_LMS_MASK;
1071 * Issue global reset to the MAC. Needs to be SW reset if link is up.
1072 * If link reset is used when link is up, it might reset the PHY when
1073 * mng is using it. If link is down or the flag to force full link
1074 * reset is set, then perform link reset.
1076 ctrl = IXGBE_CTRL_LNK_RST;
1077 if (!hw->force_full_reset) {
1078 hw->mac.ops.check_link(hw, &link_speed, &link_up, FALSE);
1080 ctrl = IXGBE_CTRL_RST;
1083 ctrl |= IXGBE_READ_REG(hw, IXGBE_CTRL);
1084 IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
1085 IXGBE_WRITE_FLUSH(hw);
1087 /* Poll for reset bit to self-clear meaning reset is complete */
1088 for (i = 0; i < 10; i++) {
1090 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
1091 if (!(ctrl & IXGBE_CTRL_RST_MASK))
1095 if (ctrl & IXGBE_CTRL_RST_MASK) {
1096 status = IXGBE_ERR_RESET_FAILED;
1097 DEBUGOUT("Reset polling failed to complete.\n");
1103 * Double resets are required for recovery from certain error
1104 * conditions. Between resets, it is necessary to stall to
1105 * allow time for any pending HW events to complete.
1107 if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
1108 hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
1113 * Store the original AUTOC/AUTOC2 values if they have not been
1114 * stored off yet. Otherwise restore the stored original
1115 * values since the reset operation sets back to defaults.
1117 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
1118 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
1120 /* Enable link if disabled in NVM */
1121 if (autoc2 & IXGBE_AUTOC2_LINK_DISABLE_MASK) {
1122 autoc2 &= ~IXGBE_AUTOC2_LINK_DISABLE_MASK;
1123 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2);
1124 IXGBE_WRITE_FLUSH(hw);
1127 if (hw->mac.orig_link_settings_stored == FALSE) {
1128 hw->mac.orig_autoc = autoc;
1129 hw->mac.orig_autoc2 = autoc2;
1130 hw->mac.orig_link_settings_stored = TRUE;
1133 /* If MNG FW is running on a multi-speed device that
1134 * doesn't autoneg with out driver support we need to
1135 * leave LMS in the state it was before we MAC reset.
1136 * Likewise if we support WoL we don't want change the
1139 if ((hw->phy.multispeed_fiber && ixgbe_mng_enabled(hw)) ||
1141 hw->mac.orig_autoc =
1142 (hw->mac.orig_autoc & ~IXGBE_AUTOC_LMS_MASK) |
1145 if (autoc != hw->mac.orig_autoc) {
1146 status = hw->mac.ops.prot_autoc_write(hw,
1149 if (status != IXGBE_SUCCESS)
1153 if ((autoc2 & IXGBE_AUTOC2_UPPER_MASK) !=
1154 (hw->mac.orig_autoc2 & IXGBE_AUTOC2_UPPER_MASK)) {
1155 autoc2 &= ~IXGBE_AUTOC2_UPPER_MASK;
1156 autoc2 |= (hw->mac.orig_autoc2 &
1157 IXGBE_AUTOC2_UPPER_MASK);
1158 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2);
1162 /* Store the permanent mac address */
1163 hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
1166 * Store MAC address from RAR0, clear receive address registers, and
1167 * clear the multicast table. Also reset num_rar_entries to 128,
1168 * since we modify this value when programming the SAN MAC address.
1170 hw->mac.num_rar_entries = 128;
1171 hw->mac.ops.init_rx_addrs(hw);
1173 /* Store the permanent SAN mac address */
1174 hw->mac.ops.get_san_mac_addr(hw, hw->mac.san_addr);
1176 /* Add the SAN MAC address to the RAR only if it's a valid address */
1177 if (ixgbe_validate_mac_addr(hw->mac.san_addr) == 0) {
1178 hw->mac.ops.set_rar(hw, hw->mac.num_rar_entries - 1,
1179 hw->mac.san_addr, 0, IXGBE_RAH_AV);
1181 /* Save the SAN MAC RAR index */
1182 hw->mac.san_mac_rar_index = hw->mac.num_rar_entries - 1;
1184 /* Reserve the last RAR for the SAN MAC address */
1185 hw->mac.num_rar_entries--;
1188 /* Store the alternative WWNN/WWPN prefix */
1189 hw->mac.ops.get_wwn_prefix(hw, &hw->mac.wwnn_prefix,
1190 &hw->mac.wwpn_prefix);
1197 * ixgbe_fdir_check_cmd_complete - poll to check whether FDIRCMD is complete
1198 * @hw: pointer to hardware structure
1199 * @fdircmd: current value of FDIRCMD register
1201 static s32 ixgbe_fdir_check_cmd_complete(struct ixgbe_hw *hw, u32 *fdircmd)
1205 for (i = 0; i < IXGBE_FDIRCMD_CMD_POLL; i++) {
1206 *fdircmd = IXGBE_READ_REG(hw, IXGBE_FDIRCMD);
1207 if (!(*fdircmd & IXGBE_FDIRCMD_CMD_MASK))
1208 return IXGBE_SUCCESS;
1212 return IXGBE_ERR_FDIR_CMD_INCOMPLETE;
1216 * ixgbe_reinit_fdir_tables_82599 - Reinitialize Flow Director tables.
1217 * @hw: pointer to hardware structure
1219 s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw)
1223 u32 fdirctrl = IXGBE_READ_REG(hw, IXGBE_FDIRCTRL);
1225 fdirctrl &= ~IXGBE_FDIRCTRL_INIT_DONE;
1227 DEBUGFUNC("ixgbe_reinit_fdir_tables_82599");
1230 * Before starting reinitialization process,
1231 * FDIRCMD.CMD must be zero.
1233 err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
1235 DEBUGOUT("Flow Director previous command did not complete, aborting table re-initialization.\n");
1239 IXGBE_WRITE_REG(hw, IXGBE_FDIRFREE, 0);
1240 IXGBE_WRITE_FLUSH(hw);
1242 * 82599 adapters flow director init flow cannot be restarted,
1243 * Workaround 82599 silicon errata by performing the following steps
1244 * before re-writing the FDIRCTRL control register with the same value.
1245 * - write 1 to bit 8 of FDIRCMD register &
1246 * - write 0 to bit 8 of FDIRCMD register
1248 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1249 (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) |
1250 IXGBE_FDIRCMD_CLEARHT));
1251 IXGBE_WRITE_FLUSH(hw);
1252 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1253 (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) &
1254 ~IXGBE_FDIRCMD_CLEARHT));
1255 IXGBE_WRITE_FLUSH(hw);
1257 * Clear FDIR Hash register to clear any leftover hashes
1258 * waiting to be programmed.
1260 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, 0x00);
1261 IXGBE_WRITE_FLUSH(hw);
1263 IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
1264 IXGBE_WRITE_FLUSH(hw);
1266 /* Poll init-done after we write FDIRCTRL register */
1267 for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
1268 if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) &
1269 IXGBE_FDIRCTRL_INIT_DONE)
1273 if (i >= IXGBE_FDIR_INIT_DONE_POLL) {
1274 DEBUGOUT("Flow Director Signature poll time exceeded!\n");
1275 return IXGBE_ERR_FDIR_REINIT_FAILED;
1278 /* Clear FDIR statistics registers (read to clear) */
1279 IXGBE_READ_REG(hw, IXGBE_FDIRUSTAT);
1280 IXGBE_READ_REG(hw, IXGBE_FDIRFSTAT);
1281 IXGBE_READ_REG(hw, IXGBE_FDIRMATCH);
1282 IXGBE_READ_REG(hw, IXGBE_FDIRMISS);
1283 IXGBE_READ_REG(hw, IXGBE_FDIRLEN);
1285 return IXGBE_SUCCESS;
1289 * ixgbe_fdir_enable_82599 - Initialize Flow Director control registers
1290 * @hw: pointer to hardware structure
1291 * @fdirctrl: value to write to flow director control register
1293 static void ixgbe_fdir_enable_82599(struct ixgbe_hw *hw, u32 fdirctrl)
1297 DEBUGFUNC("ixgbe_fdir_enable_82599");
1299 /* Prime the keys for hashing */
1300 IXGBE_WRITE_REG(hw, IXGBE_FDIRHKEY, IXGBE_ATR_BUCKET_HASH_KEY);
1301 IXGBE_WRITE_REG(hw, IXGBE_FDIRSKEY, IXGBE_ATR_SIGNATURE_HASH_KEY);
1304 * Poll init-done after we write the register. Estimated times:
1305 * 10G: PBALLOC = 11b, timing is 60us
1306 * 1G: PBALLOC = 11b, timing is 600us
1307 * 100M: PBALLOC = 11b, timing is 6ms
1309 * Multiple these timings by 4 if under full Rx load
1311 * So we'll poll for IXGBE_FDIR_INIT_DONE_POLL times, sleeping for
1312 * 1 msec per poll time. If we're at line rate and drop to 100M, then
1313 * this might not finish in our poll time, but we can live with that
1316 IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
1317 IXGBE_WRITE_FLUSH(hw);
1318 for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
1319 if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) &
1320 IXGBE_FDIRCTRL_INIT_DONE)
1325 if (i >= IXGBE_FDIR_INIT_DONE_POLL)
1326 DEBUGOUT("Flow Director poll time exceeded!\n");
1330 * ixgbe_init_fdir_signature_82599 - Initialize Flow Director signature filters
1331 * @hw: pointer to hardware structure
1332 * @fdirctrl: value to write to flow director control register, initially
1333 * contains just the value of the Rx packet buffer allocation
1335 s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 fdirctrl)
1337 DEBUGFUNC("ixgbe_init_fdir_signature_82599");
1340 * Continue setup of fdirctrl register bits:
1341 * Move the flexible bytes to use the ethertype - shift 6 words
1342 * Set the maximum length per hash bucket to 0xA filters
1343 * Send interrupt when 64 filters are left
1345 fdirctrl |= (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT) |
1346 (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT) |
1347 (4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT);
1349 /* write hashes and fdirctrl register, poll for completion */
1350 ixgbe_fdir_enable_82599(hw, fdirctrl);
1352 return IXGBE_SUCCESS;
1356 * ixgbe_init_fdir_perfect_82599 - Initialize Flow Director perfect filters
1357 * @hw: pointer to hardware structure
1358 * @fdirctrl: value to write to flow director control register, initially
1359 * contains just the value of the Rx packet buffer allocation
1360 * @cloud_mode: TRUE - cloud mode, FALSE - other mode
1362 s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 fdirctrl,
1365 DEBUGFUNC("ixgbe_init_fdir_perfect_82599");
1368 * Continue setup of fdirctrl register bits:
1369 * Turn perfect match filtering on
1370 * Report hash in RSS field of Rx wb descriptor
1371 * Initialize the drop queue
1372 * Move the flexible bytes to use the ethertype - shift 6 words
1373 * Set the maximum length per hash bucket to 0xA filters
1374 * Send interrupt when 64 (0x4 * 16) filters are left
1376 fdirctrl |= IXGBE_FDIRCTRL_PERFECT_MATCH |
1377 IXGBE_FDIRCTRL_REPORT_STATUS |
1378 (IXGBE_FDIR_DROP_QUEUE << IXGBE_FDIRCTRL_DROP_Q_SHIFT) |
1379 (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT) |
1380 (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT) |
1381 (4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT);
1384 fdirctrl |=(IXGBE_FDIRCTRL_FILTERMODE_CLOUD <<
1385 IXGBE_FDIRCTRL_FILTERMODE_SHIFT);
1387 /* write hashes and fdirctrl register, poll for completion */
1388 ixgbe_fdir_enable_82599(hw, fdirctrl);
1390 return IXGBE_SUCCESS;
1394 * These defines allow us to quickly generate all of the necessary instructions
1395 * in the function below by simply calling out IXGBE_COMPUTE_SIG_HASH_ITERATION
1396 * for values 0 through 15
1398 #define IXGBE_ATR_COMMON_HASH_KEY \
1399 (IXGBE_ATR_BUCKET_HASH_KEY & IXGBE_ATR_SIGNATURE_HASH_KEY)
1400 #define IXGBE_COMPUTE_SIG_HASH_ITERATION(_n) \
1403 if (IXGBE_ATR_COMMON_HASH_KEY & (0x01 << n)) \
1404 common_hash ^= lo_hash_dword >> n; \
1405 else if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << n)) \
1406 bucket_hash ^= lo_hash_dword >> n; \
1407 else if (IXGBE_ATR_SIGNATURE_HASH_KEY & (0x01 << n)) \
1408 sig_hash ^= lo_hash_dword << (16 - n); \
1409 if (IXGBE_ATR_COMMON_HASH_KEY & (0x01 << (n + 16))) \
1410 common_hash ^= hi_hash_dword >> n; \
1411 else if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << (n + 16))) \
1412 bucket_hash ^= hi_hash_dword >> n; \
1413 else if (IXGBE_ATR_SIGNATURE_HASH_KEY & (0x01 << (n + 16))) \
1414 sig_hash ^= hi_hash_dword << (16 - n); \
1418 * ixgbe_atr_compute_sig_hash_82599 - Compute the signature hash
1419 * @stream: input bitstream to compute the hash on
1421 * This function is almost identical to the function above but contains
1422 * several optimizations such as unwinding all of the loops, letting the
1423 * compiler work out all of the conditional ifs since the keys are static
1424 * defines, and computing two keys at once since the hashed dword stream
1425 * will be the same for both keys.
1427 u32 ixgbe_atr_compute_sig_hash_82599(union ixgbe_atr_hash_dword input,
1428 union ixgbe_atr_hash_dword common)
1430 u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
1431 u32 sig_hash = 0, bucket_hash = 0, common_hash = 0;
1433 /* record the flow_vm_vlan bits as they are a key part to the hash */
1434 flow_vm_vlan = IXGBE_NTOHL(input.dword);
1436 /* generate common hash dword */
1437 hi_hash_dword = IXGBE_NTOHL(common.dword);
1439 /* low dword is word swapped version of common */
1440 lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
1442 /* apply flow ID/VM pool/VLAN ID bits to hash words */
1443 hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);
1445 /* Process bits 0 and 16 */
1446 IXGBE_COMPUTE_SIG_HASH_ITERATION(0);
1449 * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
1450 * delay this because bit 0 of the stream should not be processed
1451 * so we do not add the VLAN until after bit 0 was processed
1453 lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);
1455 /* Process remaining 30 bit of the key */
1456 IXGBE_COMPUTE_SIG_HASH_ITERATION(1);
1457 IXGBE_COMPUTE_SIG_HASH_ITERATION(2);
1458 IXGBE_COMPUTE_SIG_HASH_ITERATION(3);
1459 IXGBE_COMPUTE_SIG_HASH_ITERATION(4);
1460 IXGBE_COMPUTE_SIG_HASH_ITERATION(5);
1461 IXGBE_COMPUTE_SIG_HASH_ITERATION(6);
1462 IXGBE_COMPUTE_SIG_HASH_ITERATION(7);
1463 IXGBE_COMPUTE_SIG_HASH_ITERATION(8);
1464 IXGBE_COMPUTE_SIG_HASH_ITERATION(9);
1465 IXGBE_COMPUTE_SIG_HASH_ITERATION(10);
1466 IXGBE_COMPUTE_SIG_HASH_ITERATION(11);
1467 IXGBE_COMPUTE_SIG_HASH_ITERATION(12);
1468 IXGBE_COMPUTE_SIG_HASH_ITERATION(13);
1469 IXGBE_COMPUTE_SIG_HASH_ITERATION(14);
1470 IXGBE_COMPUTE_SIG_HASH_ITERATION(15);
1472 /* combine common_hash result with signature and bucket hashes */
1473 bucket_hash ^= common_hash;
1474 bucket_hash &= IXGBE_ATR_HASH_MASK;
1476 sig_hash ^= common_hash << 16;
1477 sig_hash &= IXGBE_ATR_HASH_MASK << 16;
1479 /* return completed signature hash */
1480 return sig_hash ^ bucket_hash;
1484 * ixgbe_atr_add_signature_filter_82599 - Adds a signature hash filter
1485 * @hw: pointer to hardware structure
1486 * @input: unique input dword
1487 * @common: compressed common input dword
1488 * @queue: queue index to direct traffic to
1490 * Note that the tunnel bit in input must not be set when the hardware
1491 * tunneling support does not exist.
1493 s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
1494 union ixgbe_atr_hash_dword input,
1495 union ixgbe_atr_hash_dword common,
1504 DEBUGFUNC("ixgbe_fdir_add_signature_filter_82599");
1507 * Get the flow_type in order to program FDIRCMD properly
1508 * lowest 2 bits are FDIRCMD.L4TYPE, third lowest bit is FDIRCMD.IPV6
1509 * fifth is FDIRCMD.TUNNEL_FILTER
1511 tunnel = !!(input.formatted.flow_type & IXGBE_ATR_L4TYPE_TUNNEL_MASK);
1512 flow_type = input.formatted.flow_type &
1513 (IXGBE_ATR_L4TYPE_TUNNEL_MASK - 1);
1514 switch (flow_type) {
1515 case IXGBE_ATR_FLOW_TYPE_TCPV4:
1516 case IXGBE_ATR_FLOW_TYPE_UDPV4:
1517 case IXGBE_ATR_FLOW_TYPE_SCTPV4:
1518 case IXGBE_ATR_FLOW_TYPE_TCPV6:
1519 case IXGBE_ATR_FLOW_TYPE_UDPV6:
1520 case IXGBE_ATR_FLOW_TYPE_SCTPV6:
1523 DEBUGOUT(" Error on flow type input\n");
1524 return IXGBE_ERR_CONFIG;
1527 /* configure FDIRCMD register */
1528 fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE |
1529 IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
1530 fdircmd |= (u32)flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
1531 fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
1533 fdircmd |= IXGBE_FDIRCMD_TUNNEL_FILTER;
1536 * The lower 32-bits of fdirhashcmd is for FDIRHASH, the upper 32-bits
1537 * is for FDIRCMD. Then do a 64-bit register write from FDIRHASH.
1539 fdirhashcmd = (u64)fdircmd << 32;
1540 fdirhashcmd |= ixgbe_atr_compute_sig_hash_82599(input, common);
1541 IXGBE_WRITE_REG64(hw, IXGBE_FDIRHASH, fdirhashcmd);
1543 err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
1545 DEBUGOUT("Flow Director command did not complete!\n");
1549 DEBUGOUT2("Tx Queue=%x hash=%x\n", queue, (u32)fdirhashcmd);
1551 return IXGBE_SUCCESS;
1554 #define IXGBE_COMPUTE_BKT_HASH_ITERATION(_n) \
1557 if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << n)) \
1558 bucket_hash ^= lo_hash_dword >> n; \
1559 if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << (n + 16))) \
1560 bucket_hash ^= hi_hash_dword >> n; \
1564 * ixgbe_atr_compute_perfect_hash_82599 - Compute the perfect filter hash
1565 * @atr_input: input bitstream to compute the hash on
1566 * @input_mask: mask for the input bitstream
1568 * This function serves two main purposes. First it applies the input_mask
1569 * to the atr_input resulting in a cleaned up atr_input data stream.
1570 * Secondly it computes the hash and stores it in the bkt_hash field at
1571 * the end of the input byte stream. This way it will be available for
1572 * future use without needing to recompute the hash.
1574 void ixgbe_atr_compute_perfect_hash_82599(union ixgbe_atr_input *input,
1575 union ixgbe_atr_input *input_mask)
1578 u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
1579 u32 bucket_hash = 0;
1583 /* Apply masks to input data */
1584 for (i = 0; i < 14; i++)
1585 input->dword_stream[i] &= input_mask->dword_stream[i];
1587 /* record the flow_vm_vlan bits as they are a key part to the hash */
1588 flow_vm_vlan = IXGBE_NTOHL(input->dword_stream[0]);
1590 /* generate common hash dword */
1591 for (i = 1; i <= 13; i++)
1592 hi_dword ^= input->dword_stream[i];
1593 hi_hash_dword = IXGBE_NTOHL(hi_dword);
1595 /* low dword is word swapped version of common */
1596 lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
1598 /* apply flow ID/VM pool/VLAN ID bits to hash words */
1599 hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);
1601 /* Process bits 0 and 16 */
1602 IXGBE_COMPUTE_BKT_HASH_ITERATION(0);
1605 * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
1606 * delay this because bit 0 of the stream should not be processed
1607 * so we do not add the VLAN until after bit 0 was processed
1609 lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);
1611 /* Process remaining 30 bit of the key */
1612 for (i = 1; i <= 15; i++)
1613 IXGBE_COMPUTE_BKT_HASH_ITERATION(i);
1616 * Limit hash to 13 bits since max bucket count is 8K.
1617 * Store result at the end of the input stream.
1619 input->formatted.bkt_hash = bucket_hash & 0x1FFF;
1623 * ixgbe_get_fdirtcpm_82599 - generate a TCP port from atr_input_masks
1624 * @input_mask: mask to be bit swapped
1626 * The source and destination port masks for flow director are bit swapped
1627 * in that bit 15 effects bit 0, 14 effects 1, 13, 2 etc. In order to
1628 * generate a correctly swapped value we need to bit swap the mask and that
1629 * is what is accomplished by this function.
1631 static u32 ixgbe_get_fdirtcpm_82599(union ixgbe_atr_input *input_mask)
1633 u32 mask = IXGBE_NTOHS(input_mask->formatted.dst_port);
1634 mask <<= IXGBE_FDIRTCPM_DPORTM_SHIFT;
1635 mask |= IXGBE_NTOHS(input_mask->formatted.src_port);
1636 mask = ((mask & 0x55555555) << 1) | ((mask & 0xAAAAAAAA) >> 1);
1637 mask = ((mask & 0x33333333) << 2) | ((mask & 0xCCCCCCCC) >> 2);
1638 mask = ((mask & 0x0F0F0F0F) << 4) | ((mask & 0xF0F0F0F0) >> 4);
1639 return ((mask & 0x00FF00FF) << 8) | ((mask & 0xFF00FF00) >> 8);
1643 * These two macros are meant to address the fact that we have registers
1644 * that are either all or in part big-endian. As a result on big-endian
1645 * systems we will end up byte swapping the value to little-endian before
1646 * it is byte swapped again and written to the hardware in the original
1647 * big-endian format.
1649 #define IXGBE_STORE_AS_BE32(_value) \
1650 (((u32)(_value) >> 24) | (((u32)(_value) & 0x00FF0000) >> 8) | \
1651 (((u32)(_value) & 0x0000FF00) << 8) | ((u32)(_value) << 24))
1653 #define IXGBE_WRITE_REG_BE32(a, reg, value) \
1654 IXGBE_WRITE_REG((a), (reg), IXGBE_STORE_AS_BE32(IXGBE_NTOHL(value)))
1656 #define IXGBE_STORE_AS_BE16(_value) \
1657 IXGBE_NTOHS(((u16)(_value) >> 8) | ((u16)(_value) << 8))
1659 s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
1660 union ixgbe_atr_input *input_mask, bool cloud_mode)
1662 /* mask IPv6 since it is currently not supported */
1663 u32 fdirm = IXGBE_FDIRM_DIPv6;
1666 DEBUGFUNC("ixgbe_fdir_set_atr_input_mask_82599");
1669 * Program the relevant mask registers. If src/dst_port or src/dst_addr
1670 * are zero, then assume a full mask for that field. Also assume that
1671 * a VLAN of 0 is unspecified, so mask that out as well. L4type
1672 * cannot be masked out in this implementation.
1674 * This also assumes IPv4 only. IPv6 masking isn't supported at this
1678 /* verify bucket hash is cleared on hash generation */
1679 if (input_mask->formatted.bkt_hash)
1680 DEBUGOUT(" bucket hash should always be 0 in mask\n");
1682 /* Program FDIRM and verify partial masks */
1683 switch (input_mask->formatted.vm_pool & 0x7F) {
1685 fdirm |= IXGBE_FDIRM_POOL;
1689 DEBUGOUT(" Error on vm pool mask\n");
1690 return IXGBE_ERR_CONFIG;
1693 switch (input_mask->formatted.flow_type & IXGBE_ATR_L4TYPE_MASK) {
1695 fdirm |= IXGBE_FDIRM_L4P;
1696 if (input_mask->formatted.dst_port ||
1697 input_mask->formatted.src_port) {
1698 DEBUGOUT(" Error on src/dst port mask\n");
1699 return IXGBE_ERR_CONFIG;
1701 case IXGBE_ATR_L4TYPE_MASK:
1704 DEBUGOUT(" Error on flow type mask\n");
1705 return IXGBE_ERR_CONFIG;
1708 switch (IXGBE_NTOHS(input_mask->formatted.vlan_id) & 0xEFFF) {
1710 /* mask VLAN ID, fall through to mask VLAN priority */
1711 fdirm |= IXGBE_FDIRM_VLANID;
1713 /* mask VLAN priority */
1714 fdirm |= IXGBE_FDIRM_VLANP;
1717 /* mask VLAN ID only, fall through */
1718 fdirm |= IXGBE_FDIRM_VLANID;
1720 /* no VLAN fields masked */
1723 DEBUGOUT(" Error on VLAN mask\n");
1724 return IXGBE_ERR_CONFIG;
1727 switch (input_mask->formatted.flex_bytes & 0xFFFF) {
1729 /* Mask Flex Bytes, fall through */
1730 fdirm |= IXGBE_FDIRM_FLEX;
1734 DEBUGOUT(" Error on flexible byte mask\n");
1735 return IXGBE_ERR_CONFIG;
1739 fdirm |= IXGBE_FDIRM_L3P;
1740 fdirip6m = ((u32) 0xFFFFU << IXGBE_FDIRIP6M_DIPM_SHIFT);
1741 fdirip6m |= IXGBE_FDIRIP6M_ALWAYS_MASK;
1743 switch (input_mask->formatted.inner_mac[0] & 0xFF) {
1745 /* Mask inner MAC, fall through */
1746 fdirip6m |= IXGBE_FDIRIP6M_INNER_MAC;
1750 DEBUGOUT(" Error on inner_mac byte mask\n");
1751 return IXGBE_ERR_CONFIG;
1754 switch (input_mask->formatted.tni_vni & 0xFFFFFFFF) {
1757 fdirip6m |= IXGBE_FDIRIP6M_TNI_VNI;
1760 fdirip6m |= IXGBE_FDIRIP6M_TNI_VNI_24;
1765 DEBUGOUT(" Error on TNI/VNI byte mask\n");
1766 return IXGBE_ERR_CONFIG;
1769 switch (input_mask->formatted.tunnel_type & 0xFFFF) {
1771 /* Mask turnnel type, fall through */
1772 fdirip6m |= IXGBE_FDIRIP6M_TUNNEL_TYPE;
1776 DEBUGOUT(" Error on tunnel type byte mask\n");
1777 return IXGBE_ERR_CONFIG;
1779 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIP6M, fdirip6m);
1781 /* Set all bits in FDIRTCPM, FDIRUDPM, FDIRSIP4M and
1782 * FDIRDIP4M in cloud mode to allow L3/L3 packets to
1785 IXGBE_WRITE_REG(hw, IXGBE_FDIRTCPM, 0xFFFFFFFF);
1786 IXGBE_WRITE_REG(hw, IXGBE_FDIRUDPM, 0xFFFFFFFF);
1787 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRDIP4M, 0xFFFFFFFF);
1788 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIP4M, 0xFFFFFFFF);
1791 /* Now mask VM pool and destination IPv6 - bits 5 and 2 */
1792 IXGBE_WRITE_REG(hw, IXGBE_FDIRM, fdirm);
1795 /* store the TCP/UDP port masks, bit reversed from port
1797 fdirtcpm = ixgbe_get_fdirtcpm_82599(input_mask);
1799 /* write both the same so that UDP and TCP use the same mask */
1800 IXGBE_WRITE_REG(hw, IXGBE_FDIRTCPM, ~fdirtcpm);
1801 IXGBE_WRITE_REG(hw, IXGBE_FDIRUDPM, ~fdirtcpm);
1802 /* also use it for SCTP */
1803 switch (hw->mac.type) {
1804 case ixgbe_mac_X550:
1805 case ixgbe_mac_X550EM_x:
1806 case ixgbe_mac_X550EM_a:
1807 IXGBE_WRITE_REG(hw, IXGBE_FDIRSCTPM, ~fdirtcpm);
1813 /* store source and destination IP masks (big-enian) */
1814 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIP4M,
1815 ~input_mask->formatted.src_ip[0]);
1816 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRDIP4M,
1817 ~input_mask->formatted.dst_ip[0]);
1819 return IXGBE_SUCCESS;
1822 s32 ixgbe_fdir_write_perfect_filter_82599(struct ixgbe_hw *hw,
1823 union ixgbe_atr_input *input,
1824 u16 soft_id, u8 queue, bool cloud_mode)
1826 u32 fdirport, fdirvlan, fdirhash, fdircmd;
1827 u32 addr_low, addr_high;
1831 DEBUGFUNC("ixgbe_fdir_write_perfect_filter_82599");
1833 /* currently IPv6 is not supported, must be programmed with 0 */
1834 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(0),
1835 input->formatted.src_ip[0]);
1836 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(1),
1837 input->formatted.src_ip[1]);
1838 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(2),
1839 input->formatted.src_ip[2]);
1841 /* record the source address (big-endian) */
1842 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPSA,
1843 input->formatted.src_ip[0]);
1845 /* record the first 32 bits of the destination address
1847 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPDA,
1848 input->formatted.dst_ip[0]);
1850 /* record source and destination port (little-endian)*/
1851 fdirport = IXGBE_NTOHS(input->formatted.dst_port);
1852 fdirport <<= IXGBE_FDIRPORT_DESTINATION_SHIFT;
1853 fdirport |= IXGBE_NTOHS(input->formatted.src_port);
1854 IXGBE_WRITE_REG(hw, IXGBE_FDIRPORT, fdirport);
1857 /* record VLAN (little-endian) and flex_bytes(big-endian) */
1858 fdirvlan = IXGBE_STORE_AS_BE16(input->formatted.flex_bytes);
1859 fdirvlan <<= IXGBE_FDIRVLAN_FLEX_SHIFT;
1860 fdirvlan |= IXGBE_NTOHS(input->formatted.vlan_id);
1861 IXGBE_WRITE_REG(hw, IXGBE_FDIRVLAN, fdirvlan);
1864 if (input->formatted.tunnel_type != 0)
1865 cloud_type = 0x80000000;
1867 addr_low = ((u32)input->formatted.inner_mac[0] |
1868 ((u32)input->formatted.inner_mac[1] << 8) |
1869 ((u32)input->formatted.inner_mac[2] << 16) |
1870 ((u32)input->formatted.inner_mac[3] << 24));
1871 addr_high = ((u32)input->formatted.inner_mac[4] |
1872 ((u32)input->formatted.inner_mac[5] << 8));
1873 cloud_type |= addr_high;
1874 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(0), addr_low);
1875 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(1), cloud_type);
1876 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(2), input->formatted.tni_vni);
1879 /* configure FDIRHASH register */
1880 fdirhash = input->formatted.bkt_hash;
1881 fdirhash |= soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT;
1882 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
1885 * flush all previous writes to make certain registers are
1886 * programmed prior to issuing the command
1888 IXGBE_WRITE_FLUSH(hw);
1890 /* configure FDIRCMD register */
1891 fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE |
1892 IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
1893 if (queue == IXGBE_FDIR_DROP_QUEUE)
1894 fdircmd |= IXGBE_FDIRCMD_DROP;
1895 if (input->formatted.flow_type & IXGBE_ATR_L4TYPE_TUNNEL_MASK)
1896 fdircmd |= IXGBE_FDIRCMD_TUNNEL_FILTER;
1897 fdircmd |= input->formatted.flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
1898 fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
1899 fdircmd |= (u32)input->formatted.vm_pool << IXGBE_FDIRCMD_VT_POOL_SHIFT;
1901 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, fdircmd);
1902 err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
1904 DEBUGOUT("Flow Director command did not complete!\n");
1908 return IXGBE_SUCCESS;
1911 s32 ixgbe_fdir_erase_perfect_filter_82599(struct ixgbe_hw *hw,
1912 union ixgbe_atr_input *input,
1919 /* configure FDIRHASH register */
1920 fdirhash = input->formatted.bkt_hash;
1921 fdirhash |= soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT;
1922 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
1924 /* flush hash to HW */
1925 IXGBE_WRITE_FLUSH(hw);
1927 /* Query if filter is present */
1928 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, IXGBE_FDIRCMD_CMD_QUERY_REM_FILT);
1930 err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
1932 DEBUGOUT("Flow Director command did not complete!\n");
1936 /* if filter exists in hardware then remove it */
1937 if (fdircmd & IXGBE_FDIRCMD_FILTER_VALID) {
1938 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
1939 IXGBE_WRITE_FLUSH(hw);
1940 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1941 IXGBE_FDIRCMD_CMD_REMOVE_FLOW);
1944 return IXGBE_SUCCESS;
1948 * ixgbe_fdir_add_perfect_filter_82599 - Adds a perfect filter
1949 * @hw: pointer to hardware structure
1950 * @input: input bitstream
1951 * @input_mask: mask for the input bitstream
1952 * @soft_id: software index for the filters
1953 * @queue: queue index to direct traffic to
1955 * Note that the caller to this function must lock before calling, since the
1956 * hardware writes must be protected from one another.
1958 s32 ixgbe_fdir_add_perfect_filter_82599(struct ixgbe_hw *hw,
1959 union ixgbe_atr_input *input,
1960 union ixgbe_atr_input *input_mask,
1961 u16 soft_id, u8 queue, bool cloud_mode)
1963 s32 err = IXGBE_ERR_CONFIG;
1965 DEBUGFUNC("ixgbe_fdir_add_perfect_filter_82599");
1968 * Check flow_type formatting, and bail out before we touch the hardware
1969 * if there's a configuration issue
1971 switch (input->formatted.flow_type) {
1972 case IXGBE_ATR_FLOW_TYPE_IPV4:
1973 case IXGBE_ATR_FLOW_TYPE_TUNNELED_IPV4:
1974 input_mask->formatted.flow_type = IXGBE_ATR_L4TYPE_IPV6_MASK;
1975 if (input->formatted.dst_port || input->formatted.src_port) {
1976 DEBUGOUT(" Error on src/dst port\n");
1977 return IXGBE_ERR_CONFIG;
1980 case IXGBE_ATR_FLOW_TYPE_SCTPV4:
1981 case IXGBE_ATR_FLOW_TYPE_TUNNELED_SCTPV4:
1982 if (input->formatted.dst_port || input->formatted.src_port) {
1983 DEBUGOUT(" Error on src/dst port\n");
1984 return IXGBE_ERR_CONFIG;
1986 case IXGBE_ATR_FLOW_TYPE_TCPV4:
1987 case IXGBE_ATR_FLOW_TYPE_TUNNELED_TCPV4:
1988 case IXGBE_ATR_FLOW_TYPE_UDPV4:
1989 case IXGBE_ATR_FLOW_TYPE_TUNNELED_UDPV4:
1990 input_mask->formatted.flow_type = IXGBE_ATR_L4TYPE_IPV6_MASK |
1991 IXGBE_ATR_L4TYPE_MASK;
1994 DEBUGOUT(" Error on flow type input\n");
1998 /* program input mask into the HW */
1999 err = ixgbe_fdir_set_input_mask_82599(hw, input_mask, cloud_mode);
2003 /* apply mask and compute/store hash */
2004 ixgbe_atr_compute_perfect_hash_82599(input, input_mask);
2006 /* program filters to filter memory */
2007 return ixgbe_fdir_write_perfect_filter_82599(hw, input,
2008 soft_id, queue, cloud_mode);
2012 * ixgbe_read_analog_reg8_82599 - Reads 8 bit Omer analog register
2013 * @hw: pointer to hardware structure
2014 * @reg: analog register to read
2017 * Performs read operation to Omer analog register specified.
2019 s32 ixgbe_read_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 *val)
2023 DEBUGFUNC("ixgbe_read_analog_reg8_82599");
2025 IXGBE_WRITE_REG(hw, IXGBE_CORECTL, IXGBE_CORECTL_WRITE_CMD |
2027 IXGBE_WRITE_FLUSH(hw);
2029 core_ctl = IXGBE_READ_REG(hw, IXGBE_CORECTL);
2030 *val = (u8)core_ctl;
2032 return IXGBE_SUCCESS;
2036 * ixgbe_write_analog_reg8_82599 - Writes 8 bit Omer analog register
2037 * @hw: pointer to hardware structure
2038 * @reg: atlas register to write
2039 * @val: value to write
2041 * Performs write operation to Omer analog register specified.
2043 s32 ixgbe_write_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 val)
2047 DEBUGFUNC("ixgbe_write_analog_reg8_82599");
2049 core_ctl = (reg << 8) | val;
2050 IXGBE_WRITE_REG(hw, IXGBE_CORECTL, core_ctl);
2051 IXGBE_WRITE_FLUSH(hw);
2054 return IXGBE_SUCCESS;
2058 * ixgbe_start_hw_82599 - Prepare hardware for Tx/Rx
2059 * @hw: pointer to hardware structure
2061 * Starts the hardware using the generic start_hw function
2062 * and the generation start_hw function.
2063 * Then performs revision-specific operations, if any.
2065 s32 ixgbe_start_hw_82599(struct ixgbe_hw *hw)
2067 s32 ret_val = IXGBE_SUCCESS;
2069 DEBUGFUNC("ixgbe_start_hw_82599");
2071 ret_val = ixgbe_start_hw_generic(hw);
2072 if (ret_val != IXGBE_SUCCESS)
2075 ret_val = ixgbe_start_hw_gen2(hw);
2076 if (ret_val != IXGBE_SUCCESS)
2079 /* We need to run link autotry after the driver loads */
2080 hw->mac.autotry_restart = TRUE;
2082 if (ret_val == IXGBE_SUCCESS)
2083 ret_val = ixgbe_verify_fw_version_82599(hw);
2089 * ixgbe_identify_phy_82599 - Get physical layer module
2090 * @hw: pointer to hardware structure
2092 * Determines the physical layer module found on the current adapter.
2093 * If PHY already detected, maintains current PHY type in hw struct,
2094 * otherwise executes the PHY detection routine.
2096 s32 ixgbe_identify_phy_82599(struct ixgbe_hw *hw)
2100 DEBUGFUNC("ixgbe_identify_phy_82599");
2102 /* Detect PHY if not unknown - returns success if already detected. */
2103 status = ixgbe_identify_phy_generic(hw);
2104 if (status != IXGBE_SUCCESS) {
2105 /* 82599 10GBASE-T requires an external PHY */
2106 if (hw->mac.ops.get_media_type(hw) == ixgbe_media_type_copper)
2109 status = ixgbe_identify_module_generic(hw);
2112 /* Set PHY type none if no PHY detected */
2113 if (hw->phy.type == ixgbe_phy_unknown) {
2114 hw->phy.type = ixgbe_phy_none;
2115 return IXGBE_SUCCESS;
2118 /* Return error if SFP module has been detected but is not supported */
2119 if (hw->phy.type == ixgbe_phy_sfp_unsupported)
2120 return IXGBE_ERR_SFP_NOT_SUPPORTED;
2126 * ixgbe_get_supported_physical_layer_82599 - Returns physical layer type
2127 * @hw: pointer to hardware structure
2129 * Determines physical layer capabilities of the current configuration.
2131 u32 ixgbe_get_supported_physical_layer_82599(struct ixgbe_hw *hw)
2133 u32 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
2134 u32 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
2135 u32 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
2136 u32 pma_pmd_10g_serial = autoc2 & IXGBE_AUTOC2_10G_SERIAL_PMA_PMD_MASK;
2137 u32 pma_pmd_10g_parallel = autoc & IXGBE_AUTOC_10G_PMA_PMD_MASK;
2138 u32 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;
2139 u16 ext_ability = 0;
2141 DEBUGFUNC("ixgbe_get_support_physical_layer_82599");
2143 hw->phy.ops.identify(hw);
2145 switch (hw->phy.type) {
2147 case ixgbe_phy_cu_unknown:
2148 hw->phy.ops.read_reg(hw, IXGBE_MDIO_PHY_EXT_ABILITY,
2149 IXGBE_MDIO_PMA_PMD_DEV_TYPE, &ext_ability);
2150 if (ext_ability & IXGBE_MDIO_PHY_10GBASET_ABILITY)
2151 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_T;
2152 if (ext_ability & IXGBE_MDIO_PHY_1000BASET_ABILITY)
2153 physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_T;
2154 if (ext_ability & IXGBE_MDIO_PHY_100BASETX_ABILITY)
2155 physical_layer |= IXGBE_PHYSICAL_LAYER_100BASE_TX;
2161 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
2162 case IXGBE_AUTOC_LMS_1G_AN:
2163 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
2164 if (pma_pmd_1g == IXGBE_AUTOC_1G_KX_BX) {
2165 physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_KX |
2166 IXGBE_PHYSICAL_LAYER_1000BASE_BX;
2169 /* SFI mode so read SFP module */
2172 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
2173 if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_CX4)
2174 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_CX4;
2175 else if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_KX4)
2176 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
2177 else if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_XAUI)
2178 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_XAUI;
2181 case IXGBE_AUTOC_LMS_10G_SERIAL:
2182 if (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_KR) {
2183 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KR;
2185 } else if (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI)
2188 case IXGBE_AUTOC_LMS_KX4_KX_KR:
2189 case IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN:
2190 if (autoc & IXGBE_AUTOC_KX_SUPP)
2191 physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_KX;
2192 if (autoc & IXGBE_AUTOC_KX4_SUPP)
2193 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
2194 if (autoc & IXGBE_AUTOC_KR_SUPP)
2195 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KR;
2204 /* SFP check must be done last since DA modules are sometimes used to
2205 * test KR mode - we need to id KR mode correctly before SFP module.
2206 * Call identify_sfp because the pluggable module may have changed */
2207 physical_layer = ixgbe_get_supported_phy_sfp_layer_generic(hw);
2209 return physical_layer;
2213 * ixgbe_enable_rx_dma_82599 - Enable the Rx DMA unit on 82599
2214 * @hw: pointer to hardware structure
2215 * @regval: register value to write to RXCTRL
2217 * Enables the Rx DMA unit for 82599
2219 s32 ixgbe_enable_rx_dma_82599(struct ixgbe_hw *hw, u32 regval)
2222 DEBUGFUNC("ixgbe_enable_rx_dma_82599");
2225 * Workaround for 82599 silicon errata when enabling the Rx datapath.
2226 * If traffic is incoming before we enable the Rx unit, it could hang
2227 * the Rx DMA unit. Therefore, make sure the security engine is
2228 * completely disabled prior to enabling the Rx unit.
2231 hw->mac.ops.disable_sec_rx_path(hw);
2233 if (regval & IXGBE_RXCTRL_RXEN)
2234 ixgbe_enable_rx(hw);
2236 ixgbe_disable_rx(hw);
2238 hw->mac.ops.enable_sec_rx_path(hw);
2240 return IXGBE_SUCCESS;
2244 * ixgbe_verify_fw_version_82599 - verify FW version for 82599
2245 * @hw: pointer to hardware structure
2247 * Verifies that installed the firmware version is 0.6 or higher
2248 * for SFI devices. All 82599 SFI devices should have version 0.6 or higher.
2250 * Returns IXGBE_ERR_EEPROM_VERSION if the FW is not present or
2251 * if the FW version is not supported.
2253 static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw)
2255 s32 status = IXGBE_ERR_EEPROM_VERSION;
2256 u16 fw_offset, fw_ptp_cfg_offset;
2259 DEBUGFUNC("ixgbe_verify_fw_version_82599");
2261 /* firmware check is only necessary for SFI devices */
2262 if (hw->phy.media_type != ixgbe_media_type_fiber) {
2263 status = IXGBE_SUCCESS;
2264 goto fw_version_out;
2267 /* get the offset to the Firmware Module block */
2268 if (hw->eeprom.ops.read(hw, IXGBE_FW_PTR, &fw_offset)) {
2269 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
2270 "eeprom read at offset %d failed", IXGBE_FW_PTR);
2271 return IXGBE_ERR_EEPROM_VERSION;
2274 if ((fw_offset == 0) || (fw_offset == 0xFFFF))
2275 goto fw_version_out;
2277 /* get the offset to the Pass Through Patch Configuration block */
2278 if (hw->eeprom.ops.read(hw, (fw_offset +
2279 IXGBE_FW_PASSTHROUGH_PATCH_CONFIG_PTR),
2280 &fw_ptp_cfg_offset)) {
2281 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
2282 "eeprom read at offset %d failed",
2284 IXGBE_FW_PASSTHROUGH_PATCH_CONFIG_PTR);
2285 return IXGBE_ERR_EEPROM_VERSION;
2288 if ((fw_ptp_cfg_offset == 0) || (fw_ptp_cfg_offset == 0xFFFF))
2289 goto fw_version_out;
2291 /* get the firmware version */
2292 if (hw->eeprom.ops.read(hw, (fw_ptp_cfg_offset +
2293 IXGBE_FW_PATCH_VERSION_4), &fw_version)) {
2294 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
2295 "eeprom read at offset %d failed",
2296 fw_ptp_cfg_offset + IXGBE_FW_PATCH_VERSION_4);
2297 return IXGBE_ERR_EEPROM_VERSION;
2300 if (fw_version > 0x5)
2301 status = IXGBE_SUCCESS;
2308 * ixgbe_verify_lesm_fw_enabled_82599 - Checks LESM FW module state.
2309 * @hw: pointer to hardware structure
2311 * Returns TRUE if the LESM FW module is present and enabled. Otherwise
2312 * returns FALSE. Smart Speed must be disabled if LESM FW module is enabled.
2314 bool ixgbe_verify_lesm_fw_enabled_82599(struct ixgbe_hw *hw)
2316 bool lesm_enabled = FALSE;
2317 u16 fw_offset, fw_lesm_param_offset, fw_lesm_state;
2320 DEBUGFUNC("ixgbe_verify_lesm_fw_enabled_82599");
2322 /* get the offset to the Firmware Module block */
2323 status = hw->eeprom.ops.read(hw, IXGBE_FW_PTR, &fw_offset);
2325 if ((status != IXGBE_SUCCESS) ||
2326 (fw_offset == 0) || (fw_offset == 0xFFFF))
2329 /* get the offset to the LESM Parameters block */
2330 status = hw->eeprom.ops.read(hw, (fw_offset +
2331 IXGBE_FW_LESM_PARAMETERS_PTR),
2332 &fw_lesm_param_offset);
2334 if ((status != IXGBE_SUCCESS) ||
2335 (fw_lesm_param_offset == 0) || (fw_lesm_param_offset == 0xFFFF))
2338 /* get the LESM state word */
2339 status = hw->eeprom.ops.read(hw, (fw_lesm_param_offset +
2340 IXGBE_FW_LESM_STATE_1),
2343 if ((status == IXGBE_SUCCESS) &&
2344 (fw_lesm_state & IXGBE_FW_LESM_STATE_ENABLED))
2345 lesm_enabled = TRUE;
2348 return lesm_enabled;
2352 * ixgbe_read_eeprom_buffer_82599 - Read EEPROM word(s) using
2353 * fastest available method
2355 * @hw: pointer to hardware structure
2356 * @offset: offset of word in EEPROM to read
2357 * @words: number of words
2358 * @data: word(s) read from the EEPROM
2360 * Retrieves 16 bit word(s) read from EEPROM
2362 static s32 ixgbe_read_eeprom_buffer_82599(struct ixgbe_hw *hw, u16 offset,
2363 u16 words, u16 *data)
2365 struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
2366 s32 ret_val = IXGBE_ERR_CONFIG;
2368 DEBUGFUNC("ixgbe_read_eeprom_buffer_82599");
2371 * If EEPROM is detected and can be addressed using 14 bits,
2372 * use EERD otherwise use bit bang
2374 if ((eeprom->type == ixgbe_eeprom_spi) &&
2375 (offset + (words - 1) <= IXGBE_EERD_MAX_ADDR))
2376 ret_val = ixgbe_read_eerd_buffer_generic(hw, offset, words,
2379 ret_val = ixgbe_read_eeprom_buffer_bit_bang_generic(hw, offset,
2387 * ixgbe_read_eeprom_82599 - Read EEPROM word using
2388 * fastest available method
2390 * @hw: pointer to hardware structure
2391 * @offset: offset of word in the EEPROM to read
2392 * @data: word read from the EEPROM
2394 * Reads a 16 bit word from the EEPROM
2396 static s32 ixgbe_read_eeprom_82599(struct ixgbe_hw *hw,
2397 u16 offset, u16 *data)
2399 struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
2400 s32 ret_val = IXGBE_ERR_CONFIG;
2402 DEBUGFUNC("ixgbe_read_eeprom_82599");
2405 * If EEPROM is detected and can be addressed using 14 bits,
2406 * use EERD otherwise use bit bang
2408 if ((eeprom->type == ixgbe_eeprom_spi) &&
2409 (offset <= IXGBE_EERD_MAX_ADDR))
2410 ret_val = ixgbe_read_eerd_generic(hw, offset, data);
2412 ret_val = ixgbe_read_eeprom_bit_bang_generic(hw, offset, data);
2418 * ixgbe_reset_pipeline_82599 - perform pipeline reset
2420 * @hw: pointer to hardware structure
2422 * Reset pipeline by asserting Restart_AN together with LMS change to ensure
2423 * full pipeline reset. This function assumes the SW/FW lock is held.
2425 s32 ixgbe_reset_pipeline_82599(struct ixgbe_hw *hw)
2429 u32 i, autoc_reg, autoc2_reg;
2431 /* Enable link if disabled in NVM */
2432 autoc2_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
2433 if (autoc2_reg & IXGBE_AUTOC2_LINK_DISABLE_MASK) {
2434 autoc2_reg &= ~IXGBE_AUTOC2_LINK_DISABLE_MASK;
2435 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2_reg);
2436 IXGBE_WRITE_FLUSH(hw);
2439 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
2440 autoc_reg |= IXGBE_AUTOC_AN_RESTART;
2441 /* Write AUTOC register with toggled LMS[2] bit and Restart_AN */
2442 IXGBE_WRITE_REG(hw, IXGBE_AUTOC,
2443 autoc_reg ^ (0x4 << IXGBE_AUTOC_LMS_SHIFT));
2444 /* Wait for AN to leave state 0 */
2445 for (i = 0; i < 10; i++) {
2447 anlp1_reg = IXGBE_READ_REG(hw, IXGBE_ANLP1);
2448 if (anlp1_reg & IXGBE_ANLP1_AN_STATE_MASK)
2452 if (!(anlp1_reg & IXGBE_ANLP1_AN_STATE_MASK)) {
2453 DEBUGOUT("auto negotiation not completed\n");
2454 ret_val = IXGBE_ERR_RESET_FAILED;
2455 goto reset_pipeline_out;
2458 ret_val = IXGBE_SUCCESS;
2461 /* Write AUTOC register with original LMS field and Restart_AN */
2462 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
2463 IXGBE_WRITE_FLUSH(hw);
2470 * ixgbe_read_i2c_byte_82599 - Reads 8 bit word over I2C
2471 * @hw: pointer to hardware structure
2472 * @byte_offset: byte offset to read
2475 * Performs byte read operation to SFP module's EEPROM over I2C interface at
2476 * a specified device address.
2478 static s32 ixgbe_read_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
2479 u8 dev_addr, u8 *data)
2485 DEBUGFUNC("ixgbe_read_i2c_byte_82599");
2487 if (hw->phy.qsfp_shared_i2c_bus == TRUE) {
2488 /* Acquire I2C bus ownership. */
2489 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2490 esdp |= IXGBE_ESDP_SDP0;
2491 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2492 IXGBE_WRITE_FLUSH(hw);
2495 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2496 if (esdp & IXGBE_ESDP_SDP1)
2504 DEBUGOUT("Driver can't access resource,"
2505 " acquiring I2C bus timeout.\n");
2506 status = IXGBE_ERR_I2C;
2507 goto release_i2c_access;
2511 status = ixgbe_read_i2c_byte_generic(hw, byte_offset, dev_addr, data);
2515 if (hw->phy.qsfp_shared_i2c_bus == TRUE) {
2516 /* Release I2C bus ownership. */
2517 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2518 esdp &= ~IXGBE_ESDP_SDP0;
2519 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2520 IXGBE_WRITE_FLUSH(hw);
2527 * ixgbe_write_i2c_byte_82599 - Writes 8 bit word over I2C
2528 * @hw: pointer to hardware structure
2529 * @byte_offset: byte offset to write
2530 * @data: value to write
2532 * Performs byte write operation to SFP module's EEPROM over I2C interface at
2533 * a specified device address.
2535 static s32 ixgbe_write_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
2536 u8 dev_addr, u8 data)
2542 DEBUGFUNC("ixgbe_write_i2c_byte_82599");
2544 if (hw->phy.qsfp_shared_i2c_bus == TRUE) {
2545 /* Acquire I2C bus ownership. */
2546 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2547 esdp |= IXGBE_ESDP_SDP0;
2548 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2549 IXGBE_WRITE_FLUSH(hw);
2552 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2553 if (esdp & IXGBE_ESDP_SDP1)
2561 DEBUGOUT("Driver can't access resource,"
2562 " acquiring I2C bus timeout.\n");
2563 status = IXGBE_ERR_I2C;
2564 goto release_i2c_access;
2568 status = ixgbe_write_i2c_byte_generic(hw, byte_offset, dev_addr, data);
2572 if (hw->phy.qsfp_shared_i2c_bus == TRUE) {
2573 /* Release I2C bus ownership. */
2574 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2575 esdp &= ~IXGBE_ESDP_SDP0;
2576 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2577 IXGBE_WRITE_FLUSH(hw);