1 /******************************************************************************
3 Copyright (c) 2001-2015, 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 ******************************************************************************/
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_lx_core0 ||
425 hw->phy.sfp_type == ixgbe_sfp_type_1g_lx_core1 ||
426 hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core0 ||
427 hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core1) {
428 *speed = IXGBE_LINK_SPEED_1GB_FULL;
434 * Determine link capabilities based on the stored value of AUTOC,
435 * which represents EEPROM defaults. If AUTOC value has not
436 * been stored, use the current register values.
438 if (hw->mac.orig_link_settings_stored)
439 autoc = hw->mac.orig_autoc;
441 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
443 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
444 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
445 *speed = IXGBE_LINK_SPEED_1GB_FULL;
449 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
450 *speed = IXGBE_LINK_SPEED_10GB_FULL;
454 case IXGBE_AUTOC_LMS_1G_AN:
455 *speed = IXGBE_LINK_SPEED_1GB_FULL;
459 case IXGBE_AUTOC_LMS_10G_SERIAL:
460 *speed = IXGBE_LINK_SPEED_10GB_FULL;
464 case IXGBE_AUTOC_LMS_KX4_KX_KR:
465 case IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN:
466 *speed = IXGBE_LINK_SPEED_UNKNOWN;
467 if (autoc & IXGBE_AUTOC_KR_SUPP)
468 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
469 if (autoc & IXGBE_AUTOC_KX4_SUPP)
470 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
471 if (autoc & IXGBE_AUTOC_KX_SUPP)
472 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
476 case IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII:
477 *speed = IXGBE_LINK_SPEED_100_FULL;
478 if (autoc & IXGBE_AUTOC_KR_SUPP)
479 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
480 if (autoc & IXGBE_AUTOC_KX4_SUPP)
481 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
482 if (autoc & IXGBE_AUTOC_KX_SUPP)
483 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
487 case IXGBE_AUTOC_LMS_SGMII_1G_100M:
488 *speed = IXGBE_LINK_SPEED_1GB_FULL | IXGBE_LINK_SPEED_100_FULL;
493 status = IXGBE_ERR_LINK_SETUP;
498 if (hw->phy.multispeed_fiber) {
499 *speed |= IXGBE_LINK_SPEED_10GB_FULL |
500 IXGBE_LINK_SPEED_1GB_FULL;
502 /* QSFP must not enable full auto-negotiation
503 * Limited autoneg is enabled at 1G
505 if (hw->phy.media_type == ixgbe_media_type_fiber_qsfp)
516 * ixgbe_get_media_type_82599 - Get media type
517 * @hw: pointer to hardware structure
519 * Returns the media type (fiber, copper, backplane)
521 enum ixgbe_media_type ixgbe_get_media_type_82599(struct ixgbe_hw *hw)
523 enum ixgbe_media_type media_type;
525 DEBUGFUNC("ixgbe_get_media_type_82599");
527 /* Detect if there is a copper PHY attached. */
528 switch (hw->phy.type) {
529 case ixgbe_phy_cu_unknown:
531 media_type = ixgbe_media_type_copper;
537 switch (hw->device_id) {
538 case IXGBE_DEV_ID_82599_KX4:
539 case IXGBE_DEV_ID_82599_KX4_MEZZ:
540 case IXGBE_DEV_ID_82599_COMBO_BACKPLANE:
541 case IXGBE_DEV_ID_82599_KR:
542 case IXGBE_DEV_ID_82599_BACKPLANE_FCOE:
543 case IXGBE_DEV_ID_82599_XAUI_LOM:
544 /* Default device ID is mezzanine card KX/KX4 */
545 media_type = ixgbe_media_type_backplane;
547 case IXGBE_DEV_ID_82599_SFP:
548 case IXGBE_DEV_ID_82599_SFP_FCOE:
549 case IXGBE_DEV_ID_82599_SFP_EM:
550 case IXGBE_DEV_ID_82599_SFP_SF2:
551 case IXGBE_DEV_ID_82599_SFP_SF_QP:
552 case IXGBE_DEV_ID_82599EN_SFP:
553 media_type = ixgbe_media_type_fiber;
555 case IXGBE_DEV_ID_82599_CX4:
556 media_type = ixgbe_media_type_cx4;
558 case IXGBE_DEV_ID_82599_T3_LOM:
559 media_type = ixgbe_media_type_copper;
561 case IXGBE_DEV_ID_82599_QSFP_SF_QP:
562 media_type = ixgbe_media_type_fiber_qsfp;
564 case IXGBE_DEV_ID_82599_BYPASS:
565 media_type = ixgbe_media_type_fiber_fixed;
566 hw->phy.multispeed_fiber = TRUE;
569 media_type = ixgbe_media_type_unknown;
577 * ixgbe_stop_mac_link_on_d3_82599 - Disables link on D3
578 * @hw: pointer to hardware structure
580 * Disables link during D3 power down sequence.
583 void ixgbe_stop_mac_link_on_d3_82599(struct ixgbe_hw *hw)
588 DEBUGFUNC("ixgbe_stop_mac_link_on_d3_82599");
589 ixgbe_read_eeprom(hw, IXGBE_EEPROM_CTRL_2, &ee_ctrl_2);
591 if (!ixgbe_mng_present(hw) && !hw->wol_enabled &&
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;
737 * ixgbe_set_hard_rate_select_speed - Set module link speed
738 * @hw: pointer to hardware structure
739 * @speed: link speed to set
741 * Set module link speed via RS0/RS1 rate select pins.
743 void ixgbe_set_hard_rate_select_speed(struct ixgbe_hw *hw,
744 ixgbe_link_speed speed)
746 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
749 case IXGBE_LINK_SPEED_10GB_FULL:
750 esdp_reg |= (IXGBE_ESDP_SDP5_DIR | IXGBE_ESDP_SDP5);
752 case IXGBE_LINK_SPEED_1GB_FULL:
753 esdp_reg &= ~IXGBE_ESDP_SDP5;
754 esdp_reg |= IXGBE_ESDP_SDP5_DIR;
757 DEBUGOUT("Invalid fixed module speed\n");
761 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
762 IXGBE_WRITE_FLUSH(hw);
766 * ixgbe_setup_mac_link_smartspeed - Set MAC link speed using SmartSpeed
767 * @hw: pointer to hardware structure
768 * @speed: new link speed
769 * @autoneg_wait_to_complete: TRUE when waiting for completion is needed
771 * Implements the Intel SmartSpeed algorithm.
773 s32 ixgbe_setup_mac_link_smartspeed(struct ixgbe_hw *hw,
774 ixgbe_link_speed speed,
775 bool autoneg_wait_to_complete)
777 s32 status = IXGBE_SUCCESS;
778 ixgbe_link_speed link_speed = IXGBE_LINK_SPEED_UNKNOWN;
780 bool link_up = FALSE;
781 u32 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
783 DEBUGFUNC("ixgbe_setup_mac_link_smartspeed");
785 /* Set autoneg_advertised value based on input link speed */
786 hw->phy.autoneg_advertised = 0;
788 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
789 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_10GB_FULL;
791 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
792 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_1GB_FULL;
794 if (speed & IXGBE_LINK_SPEED_100_FULL)
795 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_100_FULL;
798 * Implement Intel SmartSpeed algorithm. SmartSpeed will reduce the
799 * autoneg advertisement if link is unable to be established at the
800 * highest negotiated rate. This can sometimes happen due to integrity
801 * issues with the physical media connection.
804 /* First, try to get link with full advertisement */
805 hw->phy.smart_speed_active = FALSE;
806 for (j = 0; j < IXGBE_SMARTSPEED_MAX_RETRIES; j++) {
807 status = ixgbe_setup_mac_link_82599(hw, speed,
808 autoneg_wait_to_complete);
809 if (status != IXGBE_SUCCESS)
813 * Wait for the controller to acquire link. Per IEEE 802.3ap,
814 * Section 73.10.2, we may have to wait up to 500ms if KR is
815 * attempted, or 200ms if KX/KX4/BX/BX4 is attempted, per
816 * Table 9 in the AN MAS.
818 for (i = 0; i < 5; i++) {
821 /* If we have link, just jump out */
822 status = ixgbe_check_link(hw, &link_speed, &link_up,
824 if (status != IXGBE_SUCCESS)
833 * We didn't get link. If we advertised KR plus one of KX4/KX
834 * (or BX4/BX), then disable KR and try again.
836 if (((autoc_reg & IXGBE_AUTOC_KR_SUPP) == 0) ||
837 ((autoc_reg & IXGBE_AUTOC_KX4_KX_SUPP_MASK) == 0))
840 /* Turn SmartSpeed on to disable KR support */
841 hw->phy.smart_speed_active = TRUE;
842 status = ixgbe_setup_mac_link_82599(hw, speed,
843 autoneg_wait_to_complete);
844 if (status != IXGBE_SUCCESS)
848 * Wait for the controller to acquire link. 600ms will allow for
849 * the AN link_fail_inhibit_timer as well for multiple cycles of
850 * parallel detect, both 10g and 1g. This allows for the maximum
851 * connect attempts as defined in the AN MAS table 73-7.
853 for (i = 0; i < 6; i++) {
856 /* If we have link, just jump out */
857 status = ixgbe_check_link(hw, &link_speed, &link_up, FALSE);
858 if (status != IXGBE_SUCCESS)
865 /* We didn't get link. Turn SmartSpeed back off. */
866 hw->phy.smart_speed_active = FALSE;
867 status = ixgbe_setup_mac_link_82599(hw, speed,
868 autoneg_wait_to_complete);
871 if (link_up && (link_speed == IXGBE_LINK_SPEED_1GB_FULL))
872 DEBUGOUT("Smartspeed has downgraded the link speed "
873 "from the maximum advertised\n");
878 * ixgbe_setup_mac_link_82599 - Set MAC link speed
879 * @hw: pointer to hardware structure
880 * @speed: new link speed
881 * @autoneg_wait_to_complete: TRUE when waiting for completion is needed
883 * Set the link speed in the AUTOC register and restarts link.
885 s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw,
886 ixgbe_link_speed speed,
887 bool autoneg_wait_to_complete)
889 bool autoneg = FALSE;
890 s32 status = IXGBE_SUCCESS;
891 u32 pma_pmd_1g, link_mode;
892 u32 current_autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC); /* holds the value of AUTOC register at this current point in time */
893 u32 orig_autoc = 0; /* holds the cached value of AUTOC register */
894 u32 autoc = current_autoc; /* Temporary variable used for comparison purposes */
895 u32 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
896 u32 pma_pmd_10g_serial = autoc2 & IXGBE_AUTOC2_10G_SERIAL_PMA_PMD_MASK;
899 ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN;
901 DEBUGFUNC("ixgbe_setup_mac_link_82599");
903 /* Check to see if speed passed in is supported. */
904 status = ixgbe_get_link_capabilities(hw, &link_capabilities, &autoneg);
908 speed &= link_capabilities;
910 if (speed == IXGBE_LINK_SPEED_UNKNOWN) {
911 status = IXGBE_ERR_LINK_SETUP;
915 /* Use stored value (EEPROM defaults) of AUTOC to find KR/KX4 support*/
916 if (hw->mac.orig_link_settings_stored)
917 orig_autoc = hw->mac.orig_autoc;
921 link_mode = autoc & IXGBE_AUTOC_LMS_MASK;
922 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;
924 if (link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR ||
925 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
926 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
927 /* Set KX4/KX/KR support according to speed requested */
928 autoc &= ~(IXGBE_AUTOC_KX4_KX_SUPP_MASK | IXGBE_AUTOC_KR_SUPP);
929 if (speed & IXGBE_LINK_SPEED_10GB_FULL) {
930 if (orig_autoc & IXGBE_AUTOC_KX4_SUPP)
931 autoc |= IXGBE_AUTOC_KX4_SUPP;
932 if ((orig_autoc & IXGBE_AUTOC_KR_SUPP) &&
933 (hw->phy.smart_speed_active == FALSE))
934 autoc |= IXGBE_AUTOC_KR_SUPP;
936 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
937 autoc |= IXGBE_AUTOC_KX_SUPP;
938 } else if ((pma_pmd_1g == IXGBE_AUTOC_1G_SFI) &&
939 (link_mode == IXGBE_AUTOC_LMS_1G_LINK_NO_AN ||
940 link_mode == IXGBE_AUTOC_LMS_1G_AN)) {
941 /* Switch from 1G SFI to 10G SFI if requested */
942 if ((speed == IXGBE_LINK_SPEED_10GB_FULL) &&
943 (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI)) {
944 autoc &= ~IXGBE_AUTOC_LMS_MASK;
945 autoc |= IXGBE_AUTOC_LMS_10G_SERIAL;
947 } else if ((pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI) &&
948 (link_mode == IXGBE_AUTOC_LMS_10G_SERIAL)) {
949 /* Switch from 10G SFI to 1G SFI if requested */
950 if ((speed == IXGBE_LINK_SPEED_1GB_FULL) &&
951 (pma_pmd_1g == IXGBE_AUTOC_1G_SFI)) {
952 autoc &= ~IXGBE_AUTOC_LMS_MASK;
953 if (autoneg || hw->phy.type == ixgbe_phy_qsfp_intel)
954 autoc |= IXGBE_AUTOC_LMS_1G_AN;
956 autoc |= IXGBE_AUTOC_LMS_1G_LINK_NO_AN;
960 if (autoc != current_autoc) {
962 status = hw->mac.ops.prot_autoc_write(hw, autoc, FALSE);
963 if (status != IXGBE_SUCCESS)
966 /* Only poll for autoneg to complete if specified to do so */
967 if (autoneg_wait_to_complete) {
968 if (link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR ||
969 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
970 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
971 links_reg = 0; /*Just in case Autoneg time=0*/
972 for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
974 IXGBE_READ_REG(hw, IXGBE_LINKS);
975 if (links_reg & IXGBE_LINKS_KX_AN_COMP)
979 if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
981 IXGBE_ERR_AUTONEG_NOT_COMPLETE;
982 DEBUGOUT("Autoneg did not complete.\n");
987 /* Add delay to filter out noises during initial link setup */
996 * ixgbe_setup_copper_link_82599 - Set the PHY autoneg advertised field
997 * @hw: pointer to hardware structure
998 * @speed: new link speed
999 * @autoneg_wait_to_complete: TRUE if waiting is needed to complete
1001 * Restarts link on PHY and MAC based on settings passed in.
1003 static s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw,
1004 ixgbe_link_speed speed,
1005 bool autoneg_wait_to_complete)
1009 DEBUGFUNC("ixgbe_setup_copper_link_82599");
1011 /* Setup the PHY according to input speed */
1012 status = hw->phy.ops.setup_link_speed(hw, speed,
1013 autoneg_wait_to_complete);
1015 ixgbe_start_mac_link_82599(hw, autoneg_wait_to_complete);
1021 * ixgbe_reset_hw_82599 - Perform hardware reset
1022 * @hw: pointer to hardware structure
1024 * Resets the hardware by resetting the transmit and receive units, masks
1025 * and clears all interrupts, perform a PHY reset, and perform a link (MAC)
1028 s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw)
1030 ixgbe_link_speed link_speed;
1033 u32 i, autoc, autoc2;
1035 bool link_up = FALSE;
1037 DEBUGFUNC("ixgbe_reset_hw_82599");
1039 /* Call adapter stop to disable tx/rx and clear interrupts */
1040 status = hw->mac.ops.stop_adapter(hw);
1041 if (status != IXGBE_SUCCESS)
1044 /* flush pending Tx transactions */
1045 ixgbe_clear_tx_pending(hw);
1047 /* PHY ops must be identified and initialized prior to reset */
1049 /* Identify PHY and related function pointers */
1050 status = hw->phy.ops.init(hw);
1052 if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
1055 /* Setup SFP module if there is one present. */
1056 if (hw->phy.sfp_setup_needed) {
1057 status = hw->mac.ops.setup_sfp(hw);
1058 hw->phy.sfp_setup_needed = FALSE;
1061 if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
1065 if (hw->phy.reset_disable == FALSE && hw->phy.ops.reset != NULL)
1066 hw->phy.ops.reset(hw);
1068 /* remember AUTOC from before we reset */
1069 curr_lms = IXGBE_READ_REG(hw, IXGBE_AUTOC) & IXGBE_AUTOC_LMS_MASK;
1073 * Issue global reset to the MAC. Needs to be SW reset if link is up.
1074 * If link reset is used when link is up, it might reset the PHY when
1075 * mng is using it. If link is down or the flag to force full link
1076 * reset is set, then perform link reset.
1078 ctrl = IXGBE_CTRL_LNK_RST;
1079 if (!hw->force_full_reset) {
1080 hw->mac.ops.check_link(hw, &link_speed, &link_up, FALSE);
1082 ctrl = IXGBE_CTRL_RST;
1085 ctrl |= IXGBE_READ_REG(hw, IXGBE_CTRL);
1086 IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
1087 IXGBE_WRITE_FLUSH(hw);
1089 /* Poll for reset bit to self-clear meaning reset is complete */
1090 for (i = 0; i < 10; i++) {
1092 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
1093 if (!(ctrl & IXGBE_CTRL_RST_MASK))
1097 if (ctrl & IXGBE_CTRL_RST_MASK) {
1098 status = IXGBE_ERR_RESET_FAILED;
1099 DEBUGOUT("Reset polling failed to complete.\n");
1105 * Double resets are required for recovery from certain error
1106 * conditions. Between resets, it is necessary to stall to
1107 * allow time for any pending HW events to complete.
1109 if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
1110 hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
1115 * Store the original AUTOC/AUTOC2 values if they have not been
1116 * stored off yet. Otherwise restore the stored original
1117 * values since the reset operation sets back to defaults.
1119 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
1120 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
1122 /* Enable link if disabled in NVM */
1123 if (autoc2 & IXGBE_AUTOC2_LINK_DISABLE_MASK) {
1124 autoc2 &= ~IXGBE_AUTOC2_LINK_DISABLE_MASK;
1125 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2);
1126 IXGBE_WRITE_FLUSH(hw);
1129 if (hw->mac.orig_link_settings_stored == FALSE) {
1130 hw->mac.orig_autoc = autoc;
1131 hw->mac.orig_autoc2 = autoc2;
1132 hw->mac.orig_link_settings_stored = TRUE;
1135 /* If MNG FW is running on a multi-speed device that
1136 * doesn't autoneg with out driver support we need to
1137 * leave LMS in the state it was before we MAC reset.
1138 * Likewise if we support WoL we don't want change the
1141 if ((hw->phy.multispeed_fiber && ixgbe_mng_enabled(hw)) ||
1143 hw->mac.orig_autoc =
1144 (hw->mac.orig_autoc & ~IXGBE_AUTOC_LMS_MASK) |
1147 if (autoc != hw->mac.orig_autoc) {
1148 status = hw->mac.ops.prot_autoc_write(hw,
1151 if (status != IXGBE_SUCCESS)
1155 if ((autoc2 & IXGBE_AUTOC2_UPPER_MASK) !=
1156 (hw->mac.orig_autoc2 & IXGBE_AUTOC2_UPPER_MASK)) {
1157 autoc2 &= ~IXGBE_AUTOC2_UPPER_MASK;
1158 autoc2 |= (hw->mac.orig_autoc2 &
1159 IXGBE_AUTOC2_UPPER_MASK);
1160 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2);
1164 /* Store the permanent mac address */
1165 hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
1168 * Store MAC address from RAR0, clear receive address registers, and
1169 * clear the multicast table. Also reset num_rar_entries to 128,
1170 * since we modify this value when programming the SAN MAC address.
1172 hw->mac.num_rar_entries = 128;
1173 hw->mac.ops.init_rx_addrs(hw);
1175 /* Store the permanent SAN mac address */
1176 hw->mac.ops.get_san_mac_addr(hw, hw->mac.san_addr);
1178 /* Add the SAN MAC address to the RAR only if it's a valid address */
1179 if (ixgbe_validate_mac_addr(hw->mac.san_addr) == 0) {
1180 hw->mac.ops.set_rar(hw, hw->mac.num_rar_entries - 1,
1181 hw->mac.san_addr, 0, IXGBE_RAH_AV);
1183 /* Save the SAN MAC RAR index */
1184 hw->mac.san_mac_rar_index = hw->mac.num_rar_entries - 1;
1186 /* Reserve the last RAR for the SAN MAC address */
1187 hw->mac.num_rar_entries--;
1190 /* Store the alternative WWNN/WWPN prefix */
1191 hw->mac.ops.get_wwn_prefix(hw, &hw->mac.wwnn_prefix,
1192 &hw->mac.wwpn_prefix);
1199 * ixgbe_fdir_check_cmd_complete - poll to check whether FDIRCMD is complete
1200 * @hw: pointer to hardware structure
1201 * @fdircmd: current value of FDIRCMD register
1203 static s32 ixgbe_fdir_check_cmd_complete(struct ixgbe_hw *hw, u32 *fdircmd)
1207 for (i = 0; i < IXGBE_FDIRCMD_CMD_POLL; i++) {
1208 *fdircmd = IXGBE_READ_REG(hw, IXGBE_FDIRCMD);
1209 if (!(*fdircmd & IXGBE_FDIRCMD_CMD_MASK))
1210 return IXGBE_SUCCESS;
1214 return IXGBE_ERR_FDIR_CMD_INCOMPLETE;
1218 * ixgbe_reinit_fdir_tables_82599 - Reinitialize Flow Director tables.
1219 * @hw: pointer to hardware structure
1221 s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw)
1225 u32 fdirctrl = IXGBE_READ_REG(hw, IXGBE_FDIRCTRL);
1227 fdirctrl &= ~IXGBE_FDIRCTRL_INIT_DONE;
1229 DEBUGFUNC("ixgbe_reinit_fdir_tables_82599");
1232 * Before starting reinitialization process,
1233 * FDIRCMD.CMD must be zero.
1235 err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
1237 DEBUGOUT("Flow Director previous command did not complete, aborting table re-initialization.\n");
1241 IXGBE_WRITE_REG(hw, IXGBE_FDIRFREE, 0);
1242 IXGBE_WRITE_FLUSH(hw);
1244 * 82599 adapters flow director init flow cannot be restarted,
1245 * Workaround 82599 silicon errata by performing the following steps
1246 * before re-writing the FDIRCTRL control register with the same value.
1247 * - write 1 to bit 8 of FDIRCMD register &
1248 * - write 0 to bit 8 of FDIRCMD register
1250 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1251 (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) |
1252 IXGBE_FDIRCMD_CLEARHT));
1253 IXGBE_WRITE_FLUSH(hw);
1254 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1255 (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) &
1256 ~IXGBE_FDIRCMD_CLEARHT));
1257 IXGBE_WRITE_FLUSH(hw);
1259 * Clear FDIR Hash register to clear any leftover hashes
1260 * waiting to be programmed.
1262 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, 0x00);
1263 IXGBE_WRITE_FLUSH(hw);
1265 IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
1266 IXGBE_WRITE_FLUSH(hw);
1268 /* Poll init-done after we write FDIRCTRL register */
1269 for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
1270 if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) &
1271 IXGBE_FDIRCTRL_INIT_DONE)
1275 if (i >= IXGBE_FDIR_INIT_DONE_POLL) {
1276 DEBUGOUT("Flow Director Signature poll time exceeded!\n");
1277 return IXGBE_ERR_FDIR_REINIT_FAILED;
1280 /* Clear FDIR statistics registers (read to clear) */
1281 IXGBE_READ_REG(hw, IXGBE_FDIRUSTAT);
1282 IXGBE_READ_REG(hw, IXGBE_FDIRFSTAT);
1283 IXGBE_READ_REG(hw, IXGBE_FDIRMATCH);
1284 IXGBE_READ_REG(hw, IXGBE_FDIRMISS);
1285 IXGBE_READ_REG(hw, IXGBE_FDIRLEN);
1287 return IXGBE_SUCCESS;
1291 * ixgbe_fdir_enable_82599 - Initialize Flow Director control registers
1292 * @hw: pointer to hardware structure
1293 * @fdirctrl: value to write to flow director control register
1295 static void ixgbe_fdir_enable_82599(struct ixgbe_hw *hw, u32 fdirctrl)
1299 DEBUGFUNC("ixgbe_fdir_enable_82599");
1301 /* Prime the keys for hashing */
1302 IXGBE_WRITE_REG(hw, IXGBE_FDIRHKEY, IXGBE_ATR_BUCKET_HASH_KEY);
1303 IXGBE_WRITE_REG(hw, IXGBE_FDIRSKEY, IXGBE_ATR_SIGNATURE_HASH_KEY);
1306 * Poll init-done after we write the register. Estimated times:
1307 * 10G: PBALLOC = 11b, timing is 60us
1308 * 1G: PBALLOC = 11b, timing is 600us
1309 * 100M: PBALLOC = 11b, timing is 6ms
1311 * Multiple these timings by 4 if under full Rx load
1313 * So we'll poll for IXGBE_FDIR_INIT_DONE_POLL times, sleeping for
1314 * 1 msec per poll time. If we're at line rate and drop to 100M, then
1315 * this might not finish in our poll time, but we can live with that
1318 IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
1319 IXGBE_WRITE_FLUSH(hw);
1320 for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
1321 if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) &
1322 IXGBE_FDIRCTRL_INIT_DONE)
1327 if (i >= IXGBE_FDIR_INIT_DONE_POLL)
1328 DEBUGOUT("Flow Director poll time exceeded!\n");
1332 * ixgbe_init_fdir_signature_82599 - Initialize Flow Director signature filters
1333 * @hw: pointer to hardware structure
1334 * @fdirctrl: value to write to flow director control register, initially
1335 * contains just the value of the Rx packet buffer allocation
1337 s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 fdirctrl)
1339 DEBUGFUNC("ixgbe_init_fdir_signature_82599");
1342 * Continue setup of fdirctrl register bits:
1343 * Move the flexible bytes to use the ethertype - shift 6 words
1344 * Set the maximum length per hash bucket to 0xA filters
1345 * Send interrupt when 64 filters are left
1347 fdirctrl |= (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT) |
1348 (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT) |
1349 (4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT);
1351 /* write hashes and fdirctrl register, poll for completion */
1352 ixgbe_fdir_enable_82599(hw, fdirctrl);
1354 return IXGBE_SUCCESS;
1358 * ixgbe_init_fdir_perfect_82599 - Initialize Flow Director perfect filters
1359 * @hw: pointer to hardware structure
1360 * @fdirctrl: value to write to flow director control register, initially
1361 * contains just the value of the Rx packet buffer allocation
1362 * @cloud_mode: TRUE - cloud mode, FALSE - other mode
1364 s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 fdirctrl,
1367 DEBUGFUNC("ixgbe_init_fdir_perfect_82599");
1370 * Continue setup of fdirctrl register bits:
1371 * Turn perfect match filtering on
1372 * Report hash in RSS field of Rx wb descriptor
1373 * Initialize the drop queue
1374 * Move the flexible bytes to use the ethertype - shift 6 words
1375 * Set the maximum length per hash bucket to 0xA filters
1376 * Send interrupt when 64 (0x4 * 16) filters are left
1378 fdirctrl |= IXGBE_FDIRCTRL_PERFECT_MATCH |
1379 IXGBE_FDIRCTRL_REPORT_STATUS |
1380 (IXGBE_FDIR_DROP_QUEUE << IXGBE_FDIRCTRL_DROP_Q_SHIFT) |
1381 (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT) |
1382 (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT) |
1383 (4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT);
1386 fdirctrl |=(IXGBE_FDIRCTRL_FILTERMODE_CLOUD <<
1387 IXGBE_FDIRCTRL_FILTERMODE_SHIFT);
1389 /* write hashes and fdirctrl register, poll for completion */
1390 ixgbe_fdir_enable_82599(hw, fdirctrl);
1392 return IXGBE_SUCCESS;
1396 * These defines allow us to quickly generate all of the necessary instructions
1397 * in the function below by simply calling out IXGBE_COMPUTE_SIG_HASH_ITERATION
1398 * for values 0 through 15
1400 #define IXGBE_ATR_COMMON_HASH_KEY \
1401 (IXGBE_ATR_BUCKET_HASH_KEY & IXGBE_ATR_SIGNATURE_HASH_KEY)
1402 #define IXGBE_COMPUTE_SIG_HASH_ITERATION(_n) \
1405 if (IXGBE_ATR_COMMON_HASH_KEY & (0x01 << n)) \
1406 common_hash ^= lo_hash_dword >> n; \
1407 else if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << n)) \
1408 bucket_hash ^= lo_hash_dword >> n; \
1409 else if (IXGBE_ATR_SIGNATURE_HASH_KEY & (0x01 << n)) \
1410 sig_hash ^= lo_hash_dword << (16 - n); \
1411 if (IXGBE_ATR_COMMON_HASH_KEY & (0x01 << (n + 16))) \
1412 common_hash ^= hi_hash_dword >> n; \
1413 else if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << (n + 16))) \
1414 bucket_hash ^= hi_hash_dword >> n; \
1415 else if (IXGBE_ATR_SIGNATURE_HASH_KEY & (0x01 << (n + 16))) \
1416 sig_hash ^= hi_hash_dword << (16 - n); \
1420 * ixgbe_atr_compute_sig_hash_82599 - Compute the signature hash
1421 * @stream: input bitstream to compute the hash on
1423 * This function is almost identical to the function above but contains
1424 * several optimizations such as unwinding all of the loops, letting the
1425 * compiler work out all of the conditional ifs since the keys are static
1426 * defines, and computing two keys at once since the hashed dword stream
1427 * will be the same for both keys.
1429 u32 ixgbe_atr_compute_sig_hash_82599(union ixgbe_atr_hash_dword input,
1430 union ixgbe_atr_hash_dword common)
1432 u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
1433 u32 sig_hash = 0, bucket_hash = 0, common_hash = 0;
1435 /* record the flow_vm_vlan bits as they are a key part to the hash */
1436 flow_vm_vlan = IXGBE_NTOHL(input.dword);
1438 /* generate common hash dword */
1439 hi_hash_dword = IXGBE_NTOHL(common.dword);
1441 /* low dword is word swapped version of common */
1442 lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
1444 /* apply flow ID/VM pool/VLAN ID bits to hash words */
1445 hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);
1447 /* Process bits 0 and 16 */
1448 IXGBE_COMPUTE_SIG_HASH_ITERATION(0);
1451 * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
1452 * delay this because bit 0 of the stream should not be processed
1453 * so we do not add the VLAN until after bit 0 was processed
1455 lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);
1457 /* Process remaining 30 bit of the key */
1458 IXGBE_COMPUTE_SIG_HASH_ITERATION(1);
1459 IXGBE_COMPUTE_SIG_HASH_ITERATION(2);
1460 IXGBE_COMPUTE_SIG_HASH_ITERATION(3);
1461 IXGBE_COMPUTE_SIG_HASH_ITERATION(4);
1462 IXGBE_COMPUTE_SIG_HASH_ITERATION(5);
1463 IXGBE_COMPUTE_SIG_HASH_ITERATION(6);
1464 IXGBE_COMPUTE_SIG_HASH_ITERATION(7);
1465 IXGBE_COMPUTE_SIG_HASH_ITERATION(8);
1466 IXGBE_COMPUTE_SIG_HASH_ITERATION(9);
1467 IXGBE_COMPUTE_SIG_HASH_ITERATION(10);
1468 IXGBE_COMPUTE_SIG_HASH_ITERATION(11);
1469 IXGBE_COMPUTE_SIG_HASH_ITERATION(12);
1470 IXGBE_COMPUTE_SIG_HASH_ITERATION(13);
1471 IXGBE_COMPUTE_SIG_HASH_ITERATION(14);
1472 IXGBE_COMPUTE_SIG_HASH_ITERATION(15);
1474 /* combine common_hash result with signature and bucket hashes */
1475 bucket_hash ^= common_hash;
1476 bucket_hash &= IXGBE_ATR_HASH_MASK;
1478 sig_hash ^= common_hash << 16;
1479 sig_hash &= IXGBE_ATR_HASH_MASK << 16;
1481 /* return completed signature hash */
1482 return sig_hash ^ bucket_hash;
1486 * ixgbe_atr_add_signature_filter_82599 - Adds a signature hash filter
1487 * @hw: pointer to hardware structure
1488 * @input: unique input dword
1489 * @common: compressed common input dword
1490 * @queue: queue index to direct traffic to
1492 * Note that the tunnel bit in input must not be set when the hardware
1493 * tunneling support does not exist.
1495 s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
1496 union ixgbe_atr_hash_dword input,
1497 union ixgbe_atr_hash_dword common,
1506 DEBUGFUNC("ixgbe_fdir_add_signature_filter_82599");
1509 * Get the flow_type in order to program FDIRCMD properly
1510 * lowest 2 bits are FDIRCMD.L4TYPE, third lowest bit is FDIRCMD.IPV6
1511 * fifth is FDIRCMD.TUNNEL_FILTER
1513 tunnel = !!(input.formatted.flow_type & IXGBE_ATR_L4TYPE_TUNNEL_MASK);
1514 flow_type = input.formatted.flow_type &
1515 (IXGBE_ATR_L4TYPE_TUNNEL_MASK - 1);
1516 switch (flow_type) {
1517 case IXGBE_ATR_FLOW_TYPE_TCPV4:
1518 case IXGBE_ATR_FLOW_TYPE_UDPV4:
1519 case IXGBE_ATR_FLOW_TYPE_SCTPV4:
1520 case IXGBE_ATR_FLOW_TYPE_TCPV6:
1521 case IXGBE_ATR_FLOW_TYPE_UDPV6:
1522 case IXGBE_ATR_FLOW_TYPE_SCTPV6:
1525 DEBUGOUT(" Error on flow type input\n");
1526 return IXGBE_ERR_CONFIG;
1529 /* configure FDIRCMD register */
1530 fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE |
1531 IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
1532 fdircmd |= (u32)flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
1533 fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
1535 fdircmd |= IXGBE_FDIRCMD_TUNNEL_FILTER;
1538 * The lower 32-bits of fdirhashcmd is for FDIRHASH, the upper 32-bits
1539 * is for FDIRCMD. Then do a 64-bit register write from FDIRHASH.
1541 fdirhashcmd = (u64)fdircmd << 32;
1542 fdirhashcmd |= ixgbe_atr_compute_sig_hash_82599(input, common);
1543 IXGBE_WRITE_REG64(hw, IXGBE_FDIRHASH, fdirhashcmd);
1545 err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
1547 DEBUGOUT("Flow Director command did not complete!\n");
1551 DEBUGOUT2("Tx Queue=%x hash=%x\n", queue, (u32)fdirhashcmd);
1553 return IXGBE_SUCCESS;
1556 #define IXGBE_COMPUTE_BKT_HASH_ITERATION(_n) \
1559 if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << n)) \
1560 bucket_hash ^= lo_hash_dword >> n; \
1561 if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << (n + 16))) \
1562 bucket_hash ^= hi_hash_dword >> n; \
1566 * ixgbe_atr_compute_perfect_hash_82599 - Compute the perfect filter hash
1567 * @atr_input: input bitstream to compute the hash on
1568 * @input_mask: mask for the input bitstream
1570 * This function serves two main purposes. First it applies the input_mask
1571 * to the atr_input resulting in a cleaned up atr_input data stream.
1572 * Secondly it computes the hash and stores it in the bkt_hash field at
1573 * the end of the input byte stream. This way it will be available for
1574 * future use without needing to recompute the hash.
1576 void ixgbe_atr_compute_perfect_hash_82599(union ixgbe_atr_input *input,
1577 union ixgbe_atr_input *input_mask)
1580 u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
1581 u32 bucket_hash = 0;
1585 /* Apply masks to input data */
1586 for (i = 0; i < 14; i++)
1587 input->dword_stream[i] &= input_mask->dword_stream[i];
1589 /* record the flow_vm_vlan bits as they are a key part to the hash */
1590 flow_vm_vlan = IXGBE_NTOHL(input->dword_stream[0]);
1592 /* generate common hash dword */
1593 for (i = 1; i <= 13; i++)
1594 hi_dword ^= input->dword_stream[i];
1595 hi_hash_dword = IXGBE_NTOHL(hi_dword);
1597 /* low dword is word swapped version of common */
1598 lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
1600 /* apply flow ID/VM pool/VLAN ID bits to hash words */
1601 hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);
1603 /* Process bits 0 and 16 */
1604 IXGBE_COMPUTE_BKT_HASH_ITERATION(0);
1607 * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
1608 * delay this because bit 0 of the stream should not be processed
1609 * so we do not add the VLAN until after bit 0 was processed
1611 lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);
1613 /* Process remaining 30 bit of the key */
1614 for (i = 1; i <= 15; i++)
1615 IXGBE_COMPUTE_BKT_HASH_ITERATION(i);
1618 * Limit hash to 13 bits since max bucket count is 8K.
1619 * Store result at the end of the input stream.
1621 input->formatted.bkt_hash = bucket_hash & 0x1FFF;
1625 * ixgbe_get_fdirtcpm_82599 - generate a TCP port from atr_input_masks
1626 * @input_mask: mask to be bit swapped
1628 * The source and destination port masks for flow director are bit swapped
1629 * in that bit 15 effects bit 0, 14 effects 1, 13, 2 etc. In order to
1630 * generate a correctly swapped value we need to bit swap the mask and that
1631 * is what is accomplished by this function.
1633 static u32 ixgbe_get_fdirtcpm_82599(union ixgbe_atr_input *input_mask)
1635 u32 mask = IXGBE_NTOHS(input_mask->formatted.dst_port);
1636 mask <<= IXGBE_FDIRTCPM_DPORTM_SHIFT;
1637 mask |= IXGBE_NTOHS(input_mask->formatted.src_port);
1638 mask = ((mask & 0x55555555) << 1) | ((mask & 0xAAAAAAAA) >> 1);
1639 mask = ((mask & 0x33333333) << 2) | ((mask & 0xCCCCCCCC) >> 2);
1640 mask = ((mask & 0x0F0F0F0F) << 4) | ((mask & 0xF0F0F0F0) >> 4);
1641 return ((mask & 0x00FF00FF) << 8) | ((mask & 0xFF00FF00) >> 8);
1645 * These two macros are meant to address the fact that we have registers
1646 * that are either all or in part big-endian. As a result on big-endian
1647 * systems we will end up byte swapping the value to little-endian before
1648 * it is byte swapped again and written to the hardware in the original
1649 * big-endian format.
1651 #define IXGBE_STORE_AS_BE32(_value) \
1652 (((u32)(_value) >> 24) | (((u32)(_value) & 0x00FF0000) >> 8) | \
1653 (((u32)(_value) & 0x0000FF00) << 8) | ((u32)(_value) << 24))
1655 #define IXGBE_WRITE_REG_BE32(a, reg, value) \
1656 IXGBE_WRITE_REG((a), (reg), IXGBE_STORE_AS_BE32(IXGBE_NTOHL(value)))
1658 #define IXGBE_STORE_AS_BE16(_value) \
1659 IXGBE_NTOHS(((u16)(_value) >> 8) | ((u16)(_value) << 8))
1661 s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
1662 union ixgbe_atr_input *input_mask, bool cloud_mode)
1664 /* mask IPv6 since it is currently not supported */
1665 u32 fdirm = IXGBE_FDIRM_DIPv6;
1668 DEBUGFUNC("ixgbe_fdir_set_atr_input_mask_82599");
1671 * Program the relevant mask registers. If src/dst_port or src/dst_addr
1672 * are zero, then assume a full mask for that field. Also assume that
1673 * a VLAN of 0 is unspecified, so mask that out as well. L4type
1674 * cannot be masked out in this implementation.
1676 * This also assumes IPv4 only. IPv6 masking isn't supported at this
1680 /* verify bucket hash is cleared on hash generation */
1681 if (input_mask->formatted.bkt_hash)
1682 DEBUGOUT(" bucket hash should always be 0 in mask\n");
1684 /* Program FDIRM and verify partial masks */
1685 switch (input_mask->formatted.vm_pool & 0x7F) {
1687 fdirm |= IXGBE_FDIRM_POOL;
1691 DEBUGOUT(" Error on vm pool mask\n");
1692 return IXGBE_ERR_CONFIG;
1695 switch (input_mask->formatted.flow_type & IXGBE_ATR_L4TYPE_MASK) {
1697 fdirm |= IXGBE_FDIRM_L4P;
1698 if (input_mask->formatted.dst_port ||
1699 input_mask->formatted.src_port) {
1700 DEBUGOUT(" Error on src/dst port mask\n");
1701 return IXGBE_ERR_CONFIG;
1703 case IXGBE_ATR_L4TYPE_MASK:
1706 DEBUGOUT(" Error on flow type mask\n");
1707 return IXGBE_ERR_CONFIG;
1710 switch (IXGBE_NTOHS(input_mask->formatted.vlan_id) & 0xEFFF) {
1712 /* mask VLAN ID, fall through to mask VLAN priority */
1713 fdirm |= IXGBE_FDIRM_VLANID;
1715 /* mask VLAN priority */
1716 fdirm |= IXGBE_FDIRM_VLANP;
1719 /* mask VLAN ID only, fall through */
1720 fdirm |= IXGBE_FDIRM_VLANID;
1722 /* no VLAN fields masked */
1725 DEBUGOUT(" Error on VLAN mask\n");
1726 return IXGBE_ERR_CONFIG;
1729 switch (input_mask->formatted.flex_bytes & 0xFFFF) {
1731 /* Mask Flex Bytes, fall through */
1732 fdirm |= IXGBE_FDIRM_FLEX;
1736 DEBUGOUT(" Error on flexible byte mask\n");
1737 return IXGBE_ERR_CONFIG;
1741 fdirm |= IXGBE_FDIRM_L3P;
1742 fdirip6m = ((u32) 0xFFFFU << IXGBE_FDIRIP6M_DIPM_SHIFT);
1743 fdirip6m |= IXGBE_FDIRIP6M_ALWAYS_MASK;
1745 switch (input_mask->formatted.inner_mac[0] & 0xFF) {
1747 /* Mask inner MAC, fall through */
1748 fdirip6m |= IXGBE_FDIRIP6M_INNER_MAC;
1752 DEBUGOUT(" Error on inner_mac byte mask\n");
1753 return IXGBE_ERR_CONFIG;
1756 switch (input_mask->formatted.tni_vni & 0xFFFFFFFF) {
1759 fdirip6m |= IXGBE_FDIRIP6M_TNI_VNI;
1762 fdirip6m |= IXGBE_FDIRIP6M_TNI_VNI_24;
1767 DEBUGOUT(" Error on TNI/VNI byte mask\n");
1768 return IXGBE_ERR_CONFIG;
1771 switch (input_mask->formatted.tunnel_type & 0xFFFF) {
1773 /* Mask turnnel type, fall through */
1774 fdirip6m |= IXGBE_FDIRIP6M_TUNNEL_TYPE;
1778 DEBUGOUT(" Error on tunnel type byte mask\n");
1779 return IXGBE_ERR_CONFIG;
1781 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIP6M, fdirip6m);
1783 /* Set all bits in FDIRTCPM, FDIRUDPM, FDIRSIP4M and
1784 * FDIRDIP4M in cloud mode to allow L3/L3 packets to
1787 IXGBE_WRITE_REG(hw, IXGBE_FDIRTCPM, 0xFFFFFFFF);
1788 IXGBE_WRITE_REG(hw, IXGBE_FDIRUDPM, 0xFFFFFFFF);
1789 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRDIP4M, 0xFFFFFFFF);
1790 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIP4M, 0xFFFFFFFF);
1793 /* Now mask VM pool and destination IPv6 - bits 5 and 2 */
1794 IXGBE_WRITE_REG(hw, IXGBE_FDIRM, fdirm);
1797 /* store the TCP/UDP port masks, bit reversed from port
1799 fdirtcpm = ixgbe_get_fdirtcpm_82599(input_mask);
1801 /* write both the same so that UDP and TCP use the same mask */
1802 IXGBE_WRITE_REG(hw, IXGBE_FDIRTCPM, ~fdirtcpm);
1803 IXGBE_WRITE_REG(hw, IXGBE_FDIRUDPM, ~fdirtcpm);
1804 /* also use it for SCTP */
1805 switch (hw->mac.type) {
1806 case ixgbe_mac_X550:
1807 case ixgbe_mac_X550EM_x:
1808 IXGBE_WRITE_REG(hw, IXGBE_FDIRSCTPM, ~fdirtcpm);
1814 /* store source and destination IP masks (big-enian) */
1815 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIP4M,
1816 ~input_mask->formatted.src_ip[0]);
1817 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRDIP4M,
1818 ~input_mask->formatted.dst_ip[0]);
1820 return IXGBE_SUCCESS;
1823 s32 ixgbe_fdir_write_perfect_filter_82599(struct ixgbe_hw *hw,
1824 union ixgbe_atr_input *input,
1825 u16 soft_id, u8 queue, bool cloud_mode)
1827 u32 fdirport, fdirvlan, fdirhash, fdircmd;
1828 u32 addr_low, addr_high;
1832 DEBUGFUNC("ixgbe_fdir_write_perfect_filter_82599");
1834 /* currently IPv6 is not supported, must be programmed with 0 */
1835 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(0),
1836 input->formatted.src_ip[0]);
1837 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(1),
1838 input->formatted.src_ip[1]);
1839 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(2),
1840 input->formatted.src_ip[2]);
1842 /* record the source address (big-endian) */
1843 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPSA,
1844 input->formatted.src_ip[0]);
1846 /* record the first 32 bits of the destination address
1848 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPDA,
1849 input->formatted.dst_ip[0]);
1851 /* record source and destination port (little-endian)*/
1852 fdirport = IXGBE_NTOHS(input->formatted.dst_port);
1853 fdirport <<= IXGBE_FDIRPORT_DESTINATION_SHIFT;
1854 fdirport |= IXGBE_NTOHS(input->formatted.src_port);
1855 IXGBE_WRITE_REG(hw, IXGBE_FDIRPORT, fdirport);
1858 /* record VLAN (little-endian) and flex_bytes(big-endian) */
1859 fdirvlan = IXGBE_STORE_AS_BE16(input->formatted.flex_bytes);
1860 fdirvlan <<= IXGBE_FDIRVLAN_FLEX_SHIFT;
1861 fdirvlan |= IXGBE_NTOHS(input->formatted.vlan_id);
1862 IXGBE_WRITE_REG(hw, IXGBE_FDIRVLAN, fdirvlan);
1865 if (input->formatted.tunnel_type != 0)
1866 cloud_type = 0x80000000;
1868 addr_low = ((u32)input->formatted.inner_mac[0] |
1869 ((u32)input->formatted.inner_mac[1] << 8) |
1870 ((u32)input->formatted.inner_mac[2] << 16) |
1871 ((u32)input->formatted.inner_mac[3] << 24));
1872 addr_high = ((u32)input->formatted.inner_mac[4] |
1873 ((u32)input->formatted.inner_mac[5] << 8));
1874 cloud_type |= addr_high;
1875 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(0), addr_low);
1876 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(1), cloud_type);
1877 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(2), input->formatted.tni_vni);
1880 /* configure FDIRHASH register */
1881 fdirhash = input->formatted.bkt_hash;
1882 fdirhash |= soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT;
1883 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
1886 * flush all previous writes to make certain registers are
1887 * programmed prior to issuing the command
1889 IXGBE_WRITE_FLUSH(hw);
1891 /* configure FDIRCMD register */
1892 fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE |
1893 IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
1894 if (queue == IXGBE_FDIR_DROP_QUEUE)
1895 fdircmd |= IXGBE_FDIRCMD_DROP;
1896 if (input->formatted.flow_type & IXGBE_ATR_L4TYPE_TUNNEL_MASK)
1897 fdircmd |= IXGBE_FDIRCMD_TUNNEL_FILTER;
1898 fdircmd |= input->formatted.flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
1899 fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
1900 fdircmd |= (u32)input->formatted.vm_pool << IXGBE_FDIRCMD_VT_POOL_SHIFT;
1902 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, fdircmd);
1903 err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
1905 DEBUGOUT("Flow Director command did not complete!\n");
1909 return IXGBE_SUCCESS;
1912 s32 ixgbe_fdir_erase_perfect_filter_82599(struct ixgbe_hw *hw,
1913 union ixgbe_atr_input *input,
1920 /* configure FDIRHASH register */
1921 fdirhash = input->formatted.bkt_hash;
1922 fdirhash |= soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT;
1923 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
1925 /* flush hash to HW */
1926 IXGBE_WRITE_FLUSH(hw);
1928 /* Query if filter is present */
1929 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, IXGBE_FDIRCMD_CMD_QUERY_REM_FILT);
1931 err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
1933 DEBUGOUT("Flow Director command did not complete!\n");
1937 /* if filter exists in hardware then remove it */
1938 if (fdircmd & IXGBE_FDIRCMD_FILTER_VALID) {
1939 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
1940 IXGBE_WRITE_FLUSH(hw);
1941 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1942 IXGBE_FDIRCMD_CMD_REMOVE_FLOW);
1945 return IXGBE_SUCCESS;
1949 * ixgbe_fdir_add_perfect_filter_82599 - Adds a perfect filter
1950 * @hw: pointer to hardware structure
1951 * @input: input bitstream
1952 * @input_mask: mask for the input bitstream
1953 * @soft_id: software index for the filters
1954 * @queue: queue index to direct traffic to
1956 * Note that the caller to this function must lock before calling, since the
1957 * hardware writes must be protected from one another.
1959 s32 ixgbe_fdir_add_perfect_filter_82599(struct ixgbe_hw *hw,
1960 union ixgbe_atr_input *input,
1961 union ixgbe_atr_input *input_mask,
1962 u16 soft_id, u8 queue, bool cloud_mode)
1964 s32 err = IXGBE_ERR_CONFIG;
1966 DEBUGFUNC("ixgbe_fdir_add_perfect_filter_82599");
1969 * Check flow_type formatting, and bail out before we touch the hardware
1970 * if there's a configuration issue
1972 switch (input->formatted.flow_type) {
1973 case IXGBE_ATR_FLOW_TYPE_IPV4:
1974 case IXGBE_ATR_FLOW_TYPE_TUNNELED_IPV4:
1975 input_mask->formatted.flow_type = IXGBE_ATR_L4TYPE_IPV6_MASK;
1976 if (input->formatted.dst_port || input->formatted.src_port) {
1977 DEBUGOUT(" Error on src/dst port\n");
1978 return IXGBE_ERR_CONFIG;
1981 case IXGBE_ATR_FLOW_TYPE_SCTPV4:
1982 case IXGBE_ATR_FLOW_TYPE_TUNNELED_SCTPV4:
1983 if (input->formatted.dst_port || input->formatted.src_port) {
1984 DEBUGOUT(" Error on src/dst port\n");
1985 return IXGBE_ERR_CONFIG;
1987 case IXGBE_ATR_FLOW_TYPE_TCPV4:
1988 case IXGBE_ATR_FLOW_TYPE_TUNNELED_TCPV4:
1989 case IXGBE_ATR_FLOW_TYPE_UDPV4:
1990 case IXGBE_ATR_FLOW_TYPE_TUNNELED_UDPV4:
1991 input_mask->formatted.flow_type = IXGBE_ATR_L4TYPE_IPV6_MASK |
1992 IXGBE_ATR_L4TYPE_MASK;
1995 DEBUGOUT(" Error on flow type input\n");
1999 /* program input mask into the HW */
2000 err = ixgbe_fdir_set_input_mask_82599(hw, input_mask, cloud_mode);
2004 /* apply mask and compute/store hash */
2005 ixgbe_atr_compute_perfect_hash_82599(input, input_mask);
2007 /* program filters to filter memory */
2008 return ixgbe_fdir_write_perfect_filter_82599(hw, input,
2009 soft_id, queue, cloud_mode);
2013 * ixgbe_read_analog_reg8_82599 - Reads 8 bit Omer analog register
2014 * @hw: pointer to hardware structure
2015 * @reg: analog register to read
2018 * Performs read operation to Omer analog register specified.
2020 s32 ixgbe_read_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 *val)
2024 DEBUGFUNC("ixgbe_read_analog_reg8_82599");
2026 IXGBE_WRITE_REG(hw, IXGBE_CORECTL, IXGBE_CORECTL_WRITE_CMD |
2028 IXGBE_WRITE_FLUSH(hw);
2030 core_ctl = IXGBE_READ_REG(hw, IXGBE_CORECTL);
2031 *val = (u8)core_ctl;
2033 return IXGBE_SUCCESS;
2037 * ixgbe_write_analog_reg8_82599 - Writes 8 bit Omer analog register
2038 * @hw: pointer to hardware structure
2039 * @reg: atlas register to write
2040 * @val: value to write
2042 * Performs write operation to Omer analog register specified.
2044 s32 ixgbe_write_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 val)
2048 DEBUGFUNC("ixgbe_write_analog_reg8_82599");
2050 core_ctl = (reg << 8) | val;
2051 IXGBE_WRITE_REG(hw, IXGBE_CORECTL, core_ctl);
2052 IXGBE_WRITE_FLUSH(hw);
2055 return IXGBE_SUCCESS;
2059 * ixgbe_start_hw_82599 - Prepare hardware for Tx/Rx
2060 * @hw: pointer to hardware structure
2062 * Starts the hardware using the generic start_hw function
2063 * and the generation start_hw function.
2064 * Then performs revision-specific operations, if any.
2066 s32 ixgbe_start_hw_82599(struct ixgbe_hw *hw)
2068 s32 ret_val = IXGBE_SUCCESS;
2070 DEBUGFUNC("ixgbe_start_hw_82599");
2072 ret_val = ixgbe_start_hw_generic(hw);
2073 if (ret_val != IXGBE_SUCCESS)
2076 ret_val = ixgbe_start_hw_gen2(hw);
2077 if (ret_val != IXGBE_SUCCESS)
2080 /* We need to run link autotry after the driver loads */
2081 hw->mac.autotry_restart = TRUE;
2083 if (ret_val == IXGBE_SUCCESS)
2084 ret_val = ixgbe_verify_fw_version_82599(hw);
2090 * ixgbe_identify_phy_82599 - Get physical layer module
2091 * @hw: pointer to hardware structure
2093 * Determines the physical layer module found on the current adapter.
2094 * If PHY already detected, maintains current PHY type in hw struct,
2095 * otherwise executes the PHY detection routine.
2097 s32 ixgbe_identify_phy_82599(struct ixgbe_hw *hw)
2101 DEBUGFUNC("ixgbe_identify_phy_82599");
2103 /* Detect PHY if not unknown - returns success if already detected. */
2104 status = ixgbe_identify_phy_generic(hw);
2105 if (status != IXGBE_SUCCESS) {
2106 /* 82599 10GBASE-T requires an external PHY */
2107 if (hw->mac.ops.get_media_type(hw) == ixgbe_media_type_copper)
2110 status = ixgbe_identify_module_generic(hw);
2113 /* Set PHY type none if no PHY detected */
2114 if (hw->phy.type == ixgbe_phy_unknown) {
2115 hw->phy.type = ixgbe_phy_none;
2116 return IXGBE_SUCCESS;
2119 /* Return error if SFP module has been detected but is not supported */
2120 if (hw->phy.type == ixgbe_phy_sfp_unsupported)
2121 return IXGBE_ERR_SFP_NOT_SUPPORTED;
2127 * ixgbe_get_supported_physical_layer_82599 - Returns physical layer type
2128 * @hw: pointer to hardware structure
2130 * Determines physical layer capabilities of the current configuration.
2132 u32 ixgbe_get_supported_physical_layer_82599(struct ixgbe_hw *hw)
2134 u32 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
2135 u32 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
2136 u32 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
2137 u32 pma_pmd_10g_serial = autoc2 & IXGBE_AUTOC2_10G_SERIAL_PMA_PMD_MASK;
2138 u32 pma_pmd_10g_parallel = autoc & IXGBE_AUTOC_10G_PMA_PMD_MASK;
2139 u32 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;
2140 u16 ext_ability = 0;
2142 DEBUGFUNC("ixgbe_get_support_physical_layer_82599");
2144 hw->phy.ops.identify(hw);
2146 switch (hw->phy.type) {
2148 case ixgbe_phy_cu_unknown:
2149 hw->phy.ops.read_reg(hw, IXGBE_MDIO_PHY_EXT_ABILITY,
2150 IXGBE_MDIO_PMA_PMD_DEV_TYPE, &ext_ability);
2151 if (ext_ability & IXGBE_MDIO_PHY_10GBASET_ABILITY)
2152 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_T;
2153 if (ext_ability & IXGBE_MDIO_PHY_1000BASET_ABILITY)
2154 physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_T;
2155 if (ext_ability & IXGBE_MDIO_PHY_100BASETX_ABILITY)
2156 physical_layer |= IXGBE_PHYSICAL_LAYER_100BASE_TX;
2162 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
2163 case IXGBE_AUTOC_LMS_1G_AN:
2164 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
2165 if (pma_pmd_1g == IXGBE_AUTOC_1G_KX_BX) {
2166 physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_KX |
2167 IXGBE_PHYSICAL_LAYER_1000BASE_BX;
2170 /* SFI mode so read SFP module */
2173 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
2174 if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_CX4)
2175 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_CX4;
2176 else if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_KX4)
2177 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
2178 else if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_XAUI)
2179 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_XAUI;
2182 case IXGBE_AUTOC_LMS_10G_SERIAL:
2183 if (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_KR) {
2184 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KR;
2186 } else if (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI)
2189 case IXGBE_AUTOC_LMS_KX4_KX_KR:
2190 case IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN:
2191 if (autoc & IXGBE_AUTOC_KX_SUPP)
2192 physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_KX;
2193 if (autoc & IXGBE_AUTOC_KX4_SUPP)
2194 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
2195 if (autoc & IXGBE_AUTOC_KR_SUPP)
2196 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KR;
2205 /* SFP check must be done last since DA modules are sometimes used to
2206 * test KR mode - we need to id KR mode correctly before SFP module.
2207 * Call identify_sfp because the pluggable module may have changed */
2208 physical_layer = ixgbe_get_supported_phy_sfp_layer_generic(hw);
2210 return physical_layer;
2214 * ixgbe_enable_rx_dma_82599 - Enable the Rx DMA unit on 82599
2215 * @hw: pointer to hardware structure
2216 * @regval: register value to write to RXCTRL
2218 * Enables the Rx DMA unit for 82599
2220 s32 ixgbe_enable_rx_dma_82599(struct ixgbe_hw *hw, u32 regval)
2223 DEBUGFUNC("ixgbe_enable_rx_dma_82599");
2226 * Workaround for 82599 silicon errata when enabling the Rx datapath.
2227 * If traffic is incoming before we enable the Rx unit, it could hang
2228 * the Rx DMA unit. Therefore, make sure the security engine is
2229 * completely disabled prior to enabling the Rx unit.
2232 hw->mac.ops.disable_sec_rx_path(hw);
2234 if (regval & IXGBE_RXCTRL_RXEN)
2235 ixgbe_enable_rx(hw);
2237 ixgbe_disable_rx(hw);
2239 hw->mac.ops.enable_sec_rx_path(hw);
2241 return IXGBE_SUCCESS;
2245 * ixgbe_verify_fw_version_82599 - verify FW version for 82599
2246 * @hw: pointer to hardware structure
2248 * Verifies that installed the firmware version is 0.6 or higher
2249 * for SFI devices. All 82599 SFI devices should have version 0.6 or higher.
2251 * Returns IXGBE_ERR_EEPROM_VERSION if the FW is not present or
2252 * if the FW version is not supported.
2254 static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw)
2256 s32 status = IXGBE_ERR_EEPROM_VERSION;
2257 u16 fw_offset, fw_ptp_cfg_offset;
2260 DEBUGFUNC("ixgbe_verify_fw_version_82599");
2262 /* firmware check is only necessary for SFI devices */
2263 if (hw->phy.media_type != ixgbe_media_type_fiber) {
2264 status = IXGBE_SUCCESS;
2265 goto fw_version_out;
2268 /* get the offset to the Firmware Module block */
2269 if (hw->eeprom.ops.read(hw, IXGBE_FW_PTR, &fw_offset)) {
2270 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
2271 "eeprom read at offset %d failed", IXGBE_FW_PTR);
2272 return IXGBE_ERR_EEPROM_VERSION;
2275 if ((fw_offset == 0) || (fw_offset == 0xFFFF))
2276 goto fw_version_out;
2278 /* get the offset to the Pass Through Patch Configuration block */
2279 if (hw->eeprom.ops.read(hw, (fw_offset +
2280 IXGBE_FW_PASSTHROUGH_PATCH_CONFIG_PTR),
2281 &fw_ptp_cfg_offset)) {
2282 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
2283 "eeprom read at offset %d failed",
2285 IXGBE_FW_PASSTHROUGH_PATCH_CONFIG_PTR);
2286 return IXGBE_ERR_EEPROM_VERSION;
2289 if ((fw_ptp_cfg_offset == 0) || (fw_ptp_cfg_offset == 0xFFFF))
2290 goto fw_version_out;
2292 /* get the firmware version */
2293 if (hw->eeprom.ops.read(hw, (fw_ptp_cfg_offset +
2294 IXGBE_FW_PATCH_VERSION_4), &fw_version)) {
2295 ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE,
2296 "eeprom read at offset %d failed",
2297 fw_ptp_cfg_offset + IXGBE_FW_PATCH_VERSION_4);
2298 return IXGBE_ERR_EEPROM_VERSION;
2301 if (fw_version > 0x5)
2302 status = IXGBE_SUCCESS;
2309 * ixgbe_verify_lesm_fw_enabled_82599 - Checks LESM FW module state.
2310 * @hw: pointer to hardware structure
2312 * Returns TRUE if the LESM FW module is present and enabled. Otherwise
2313 * returns FALSE. Smart Speed must be disabled if LESM FW module is enabled.
2315 bool ixgbe_verify_lesm_fw_enabled_82599(struct ixgbe_hw *hw)
2317 bool lesm_enabled = FALSE;
2318 u16 fw_offset, fw_lesm_param_offset, fw_lesm_state;
2321 DEBUGFUNC("ixgbe_verify_lesm_fw_enabled_82599");
2323 /* get the offset to the Firmware Module block */
2324 status = hw->eeprom.ops.read(hw, IXGBE_FW_PTR, &fw_offset);
2326 if ((status != IXGBE_SUCCESS) ||
2327 (fw_offset == 0) || (fw_offset == 0xFFFF))
2330 /* get the offset to the LESM Parameters block */
2331 status = hw->eeprom.ops.read(hw, (fw_offset +
2332 IXGBE_FW_LESM_PARAMETERS_PTR),
2333 &fw_lesm_param_offset);
2335 if ((status != IXGBE_SUCCESS) ||
2336 (fw_lesm_param_offset == 0) || (fw_lesm_param_offset == 0xFFFF))
2339 /* get the LESM state word */
2340 status = hw->eeprom.ops.read(hw, (fw_lesm_param_offset +
2341 IXGBE_FW_LESM_STATE_1),
2344 if ((status == IXGBE_SUCCESS) &&
2345 (fw_lesm_state & IXGBE_FW_LESM_STATE_ENABLED))
2346 lesm_enabled = TRUE;
2349 return lesm_enabled;
2353 * ixgbe_read_eeprom_buffer_82599 - Read EEPROM word(s) using
2354 * fastest available method
2356 * @hw: pointer to hardware structure
2357 * @offset: offset of word in EEPROM to read
2358 * @words: number of words
2359 * @data: word(s) read from the EEPROM
2361 * Retrieves 16 bit word(s) read from EEPROM
2363 static s32 ixgbe_read_eeprom_buffer_82599(struct ixgbe_hw *hw, u16 offset,
2364 u16 words, u16 *data)
2366 struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
2367 s32 ret_val = IXGBE_ERR_CONFIG;
2369 DEBUGFUNC("ixgbe_read_eeprom_buffer_82599");
2372 * If EEPROM is detected and can be addressed using 14 bits,
2373 * use EERD otherwise use bit bang
2375 if ((eeprom->type == ixgbe_eeprom_spi) &&
2376 (offset + (words - 1) <= IXGBE_EERD_MAX_ADDR))
2377 ret_val = ixgbe_read_eerd_buffer_generic(hw, offset, words,
2380 ret_val = ixgbe_read_eeprom_buffer_bit_bang_generic(hw, offset,
2388 * ixgbe_read_eeprom_82599 - Read EEPROM word using
2389 * fastest available method
2391 * @hw: pointer to hardware structure
2392 * @offset: offset of word in the EEPROM to read
2393 * @data: word read from the EEPROM
2395 * Reads a 16 bit word from the EEPROM
2397 static s32 ixgbe_read_eeprom_82599(struct ixgbe_hw *hw,
2398 u16 offset, u16 *data)
2400 struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
2401 s32 ret_val = IXGBE_ERR_CONFIG;
2403 DEBUGFUNC("ixgbe_read_eeprom_82599");
2406 * If EEPROM is detected and can be addressed using 14 bits,
2407 * use EERD otherwise use bit bang
2409 if ((eeprom->type == ixgbe_eeprom_spi) &&
2410 (offset <= IXGBE_EERD_MAX_ADDR))
2411 ret_val = ixgbe_read_eerd_generic(hw, offset, data);
2413 ret_val = ixgbe_read_eeprom_bit_bang_generic(hw, offset, data);
2419 * ixgbe_reset_pipeline_82599 - perform pipeline reset
2421 * @hw: pointer to hardware structure
2423 * Reset pipeline by asserting Restart_AN together with LMS change to ensure
2424 * full pipeline reset. This function assumes the SW/FW lock is held.
2426 s32 ixgbe_reset_pipeline_82599(struct ixgbe_hw *hw)
2430 u32 i, autoc_reg, autoc2_reg;
2432 /* Enable link if disabled in NVM */
2433 autoc2_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
2434 if (autoc2_reg & IXGBE_AUTOC2_LINK_DISABLE_MASK) {
2435 autoc2_reg &= ~IXGBE_AUTOC2_LINK_DISABLE_MASK;
2436 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2_reg);
2437 IXGBE_WRITE_FLUSH(hw);
2440 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
2441 autoc_reg |= IXGBE_AUTOC_AN_RESTART;
2442 /* Write AUTOC register with toggled LMS[2] bit and Restart_AN */
2443 IXGBE_WRITE_REG(hw, IXGBE_AUTOC,
2444 autoc_reg ^ (0x4 << IXGBE_AUTOC_LMS_SHIFT));
2445 /* Wait for AN to leave state 0 */
2446 for (i = 0; i < 10; i++) {
2448 anlp1_reg = IXGBE_READ_REG(hw, IXGBE_ANLP1);
2449 if (anlp1_reg & IXGBE_ANLP1_AN_STATE_MASK)
2453 if (!(anlp1_reg & IXGBE_ANLP1_AN_STATE_MASK)) {
2454 DEBUGOUT("auto negotiation not completed\n");
2455 ret_val = IXGBE_ERR_RESET_FAILED;
2456 goto reset_pipeline_out;
2459 ret_val = IXGBE_SUCCESS;
2462 /* Write AUTOC register with original LMS field and Restart_AN */
2463 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
2464 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);