1 /*******************************************************************************
3 Intel 10 Gigabit PCI Express Linux driver
4 Copyright(c) 1999 - 2016 Intel Corporation.
6 This program is free software; you can redistribute it and/or modify it
7 under the terms and conditions of the GNU General Public License,
8 version 2, as published by the Free Software Foundation.
10 This program is distributed in the hope it will be useful, but WITHOUT
11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 You should have received a copy of the GNU General Public License along with
16 this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
19 The full GNU General Public License is included in this distribution in
20 the file called "COPYING".
23 Linux NICS <linux.nics@intel.com>
24 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
25 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *******************************************************************************/
29 #include <linux/pci.h>
30 #include <linux/delay.h>
31 #include <linux/sched.h>
34 #include "ixgbe_phy.h"
35 #include "ixgbe_mbx.h"
37 #define IXGBE_82599_MAX_TX_QUEUES 128
38 #define IXGBE_82599_MAX_RX_QUEUES 128
39 #define IXGBE_82599_RAR_ENTRIES 128
40 #define IXGBE_82599_MC_TBL_SIZE 128
41 #define IXGBE_82599_VFT_TBL_SIZE 128
42 #define IXGBE_82599_RX_PB_SIZE 512
44 static void ixgbe_disable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw);
45 static void ixgbe_enable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw);
46 static void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw);
48 ixgbe_set_hard_rate_select_speed(struct ixgbe_hw *, ixgbe_link_speed);
49 static s32 ixgbe_setup_mac_link_smartspeed(struct ixgbe_hw *hw,
50 ixgbe_link_speed speed,
51 bool autoneg_wait_to_complete);
52 static void ixgbe_stop_mac_link_on_d3_82599(struct ixgbe_hw *hw);
53 static s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw,
54 bool autoneg_wait_to_complete);
55 static s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw,
56 ixgbe_link_speed speed,
57 bool autoneg_wait_to_complete);
58 static s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw,
59 ixgbe_link_speed speed,
60 bool autoneg_wait_to_complete);
61 static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw);
62 static s32 ixgbe_read_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
63 u8 dev_addr, u8 *data);
64 static s32 ixgbe_write_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
65 u8 dev_addr, u8 data);
66 static s32 ixgbe_reset_pipeline_82599(struct ixgbe_hw *hw);
67 static bool ixgbe_verify_lesm_fw_enabled_82599(struct ixgbe_hw *hw);
69 bool ixgbe_mng_enabled(struct ixgbe_hw *hw)
71 u32 fwsm, manc, factps;
73 fwsm = IXGBE_READ_REG(hw, IXGBE_FWSM(hw));
74 if ((fwsm & IXGBE_FWSM_MODE_MASK) != IXGBE_FWSM_FW_MODE_PT)
77 manc = IXGBE_READ_REG(hw, IXGBE_MANC);
78 if (!(manc & IXGBE_MANC_RCV_TCO_EN))
81 factps = IXGBE_READ_REG(hw, IXGBE_FACTPS(hw));
82 if (factps & IXGBE_FACTPS_MNGCG)
88 static void ixgbe_init_mac_link_ops_82599(struct ixgbe_hw *hw)
90 struct ixgbe_mac_info *mac = &hw->mac;
92 /* enable the laser control functions for SFP+ fiber
95 if ((mac->ops.get_media_type(hw) == ixgbe_media_type_fiber) &&
96 !ixgbe_mng_enabled(hw)) {
97 mac->ops.disable_tx_laser =
98 &ixgbe_disable_tx_laser_multispeed_fiber;
99 mac->ops.enable_tx_laser =
100 &ixgbe_enable_tx_laser_multispeed_fiber;
101 mac->ops.flap_tx_laser = &ixgbe_flap_tx_laser_multispeed_fiber;
103 mac->ops.disable_tx_laser = NULL;
104 mac->ops.enable_tx_laser = NULL;
105 mac->ops.flap_tx_laser = NULL;
108 if (hw->phy.multispeed_fiber) {
109 /* Set up dual speed SFP+ support */
110 mac->ops.setup_link = &ixgbe_setup_mac_link_multispeed_fiber;
111 mac->ops.setup_mac_link = ixgbe_setup_mac_link_82599;
112 mac->ops.set_rate_select_speed =
113 ixgbe_set_hard_rate_select_speed;
115 if ((mac->ops.get_media_type(hw) ==
116 ixgbe_media_type_backplane) &&
117 (hw->phy.smart_speed == ixgbe_smart_speed_auto ||
118 hw->phy.smart_speed == ixgbe_smart_speed_on) &&
119 !ixgbe_verify_lesm_fw_enabled_82599(hw))
120 mac->ops.setup_link = &ixgbe_setup_mac_link_smartspeed;
122 mac->ops.setup_link = &ixgbe_setup_mac_link_82599;
126 static s32 ixgbe_setup_sfp_modules_82599(struct ixgbe_hw *hw)
129 u16 list_offset, data_offset, data_value;
131 if (hw->phy.sfp_type != ixgbe_sfp_type_unknown) {
132 ixgbe_init_mac_link_ops_82599(hw);
134 hw->phy.ops.reset = NULL;
136 ret_val = ixgbe_get_sfp_init_sequence_offsets(hw, &list_offset,
141 /* PHY config will finish before releasing the semaphore */
142 ret_val = hw->mac.ops.acquire_swfw_sync(hw,
143 IXGBE_GSSR_MAC_CSR_SM);
145 return IXGBE_ERR_SWFW_SYNC;
147 if (hw->eeprom.ops.read(hw, ++data_offset, &data_value))
149 while (data_value != 0xffff) {
150 IXGBE_WRITE_REG(hw, IXGBE_CORECTL, data_value);
151 IXGBE_WRITE_FLUSH(hw);
152 if (hw->eeprom.ops.read(hw, ++data_offset, &data_value))
156 /* Release the semaphore */
157 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
159 * Delay obtaining semaphore again to allow FW access,
160 * semaphore_delay is in ms usleep_range needs us.
162 usleep_range(hw->eeprom.semaphore_delay * 1000,
163 hw->eeprom.semaphore_delay * 2000);
165 /* Restart DSP and set SFI mode */
166 ret_val = hw->mac.ops.prot_autoc_write(hw,
167 hw->mac.orig_autoc | IXGBE_AUTOC_LMS_10G_SERIAL,
171 hw_dbg(hw, " sfp module setup not complete\n");
172 return IXGBE_ERR_SFP_SETUP_NOT_COMPLETE;
179 /* Release the semaphore */
180 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
181 /* Delay obtaining semaphore again to allow FW access,
182 * semaphore_delay is in ms usleep_range needs us.
184 usleep_range(hw->eeprom.semaphore_delay * 1000,
185 hw->eeprom.semaphore_delay * 2000);
186 hw_err(hw, "eeprom read at offset %d failed\n", data_offset);
187 return IXGBE_ERR_SFP_SETUP_NOT_COMPLETE;
191 * prot_autoc_read_82599 - Hides MAC differences needed for AUTOC read
192 * @hw: pointer to hardware structure
193 * @locked: Return the if we locked for this read.
194 * @reg_val: Value we read from AUTOC
196 * For this part (82599) we need to wrap read-modify-writes with a possible
197 * FW/SW lock. It is assumed this lock will be freed with the next
198 * prot_autoc_write_82599(). Note, that locked can only be true in cases
199 * where this function doesn't return an error.
201 static s32 prot_autoc_read_82599(struct ixgbe_hw *hw, bool *locked,
207 /* If LESM is on then we need to hold the SW/FW semaphore. */
208 if (ixgbe_verify_lesm_fw_enabled_82599(hw)) {
209 ret_val = hw->mac.ops.acquire_swfw_sync(hw,
210 IXGBE_GSSR_MAC_CSR_SM);
212 return IXGBE_ERR_SWFW_SYNC;
217 *reg_val = IXGBE_READ_REG(hw, IXGBE_AUTOC);
222 * prot_autoc_write_82599 - Hides MAC differences needed for AUTOC write
223 * @hw: pointer to hardware structure
224 * @reg_val: value to write to AUTOC
225 * @locked: bool to indicate whether the SW/FW lock was already taken by
226 * previous proc_autoc_read_82599.
228 * This part (82599) may need to hold a the SW/FW lock around all writes to
229 * AUTOC. Likewise after a write we need to do a pipeline reset.
231 static s32 prot_autoc_write_82599(struct ixgbe_hw *hw, u32 autoc, bool locked)
235 /* Blocked by MNG FW so bail */
236 if (ixgbe_check_reset_blocked(hw))
239 /* We only need to get the lock if:
240 * - We didn't do it already (in the read part of a read-modify-write)
243 if (!locked && ixgbe_verify_lesm_fw_enabled_82599(hw)) {
244 ret_val = hw->mac.ops.acquire_swfw_sync(hw,
245 IXGBE_GSSR_MAC_CSR_SM);
247 return IXGBE_ERR_SWFW_SYNC;
252 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc);
253 ret_val = ixgbe_reset_pipeline_82599(hw);
256 /* Free the SW/FW semaphore as we either grabbed it here or
257 * already had it when this function was called.
260 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
265 static s32 ixgbe_get_invariants_82599(struct ixgbe_hw *hw)
267 struct ixgbe_mac_info *mac = &hw->mac;
269 ixgbe_init_mac_link_ops_82599(hw);
271 mac->mcft_size = IXGBE_82599_MC_TBL_SIZE;
272 mac->vft_size = IXGBE_82599_VFT_TBL_SIZE;
273 mac->num_rar_entries = IXGBE_82599_RAR_ENTRIES;
274 mac->rx_pb_size = IXGBE_82599_RX_PB_SIZE;
275 mac->max_rx_queues = IXGBE_82599_MAX_RX_QUEUES;
276 mac->max_tx_queues = IXGBE_82599_MAX_TX_QUEUES;
277 mac->max_msix_vectors = ixgbe_get_pcie_msix_count_generic(hw);
283 * ixgbe_init_phy_ops_82599 - PHY/SFP specific init
284 * @hw: pointer to hardware structure
286 * Initialize any function pointers that were not able to be
287 * set during get_invariants because the PHY/SFP type was
288 * not known. Perform the SFP init if necessary.
291 static s32 ixgbe_init_phy_ops_82599(struct ixgbe_hw *hw)
293 struct ixgbe_mac_info *mac = &hw->mac;
294 struct ixgbe_phy_info *phy = &hw->phy;
298 if (hw->device_id == IXGBE_DEV_ID_82599_QSFP_SF_QP) {
299 /* Store flag indicating I2C bus access control unit. */
300 hw->phy.qsfp_shared_i2c_bus = true;
302 /* Initialize access to QSFP+ I2C bus */
303 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
304 esdp |= IXGBE_ESDP_SDP0_DIR;
305 esdp &= ~IXGBE_ESDP_SDP1_DIR;
306 esdp &= ~IXGBE_ESDP_SDP0;
307 esdp &= ~IXGBE_ESDP_SDP0_NATIVE;
308 esdp &= ~IXGBE_ESDP_SDP1_NATIVE;
309 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
310 IXGBE_WRITE_FLUSH(hw);
312 phy->ops.read_i2c_byte = &ixgbe_read_i2c_byte_82599;
313 phy->ops.write_i2c_byte = &ixgbe_write_i2c_byte_82599;
316 /* Identify the PHY or SFP module */
317 ret_val = phy->ops.identify(hw);
319 /* Setup function pointers based on detected SFP module and speeds */
320 ixgbe_init_mac_link_ops_82599(hw);
322 /* If copper media, overwrite with copper function pointers */
323 if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper) {
324 mac->ops.setup_link = &ixgbe_setup_copper_link_82599;
325 mac->ops.get_link_capabilities =
326 &ixgbe_get_copper_link_capabilities_generic;
329 /* Set necessary function pointers based on phy type */
330 switch (hw->phy.type) {
332 phy->ops.check_link = &ixgbe_check_phy_link_tnx;
333 phy->ops.setup_link = &ixgbe_setup_phy_link_tnx;
343 * ixgbe_get_link_capabilities_82599 - Determines link capabilities
344 * @hw: pointer to hardware structure
345 * @speed: pointer to link speed
346 * @autoneg: true when autoneg or autotry is enabled
348 * Determines the link capabilities by reading the AUTOC register.
350 static s32 ixgbe_get_link_capabilities_82599(struct ixgbe_hw *hw,
351 ixgbe_link_speed *speed,
356 /* Determine 1G link capabilities off of SFP+ type */
357 if (hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core0 ||
358 hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core1 ||
359 hw->phy.sfp_type == ixgbe_sfp_type_1g_lx_core0 ||
360 hw->phy.sfp_type == ixgbe_sfp_type_1g_lx_core1 ||
361 hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core0 ||
362 hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core1) {
363 *speed = IXGBE_LINK_SPEED_1GB_FULL;
369 * Determine link capabilities based on the stored value of AUTOC,
370 * which represents EEPROM defaults. If AUTOC value has not been
371 * stored, use the current register value.
373 if (hw->mac.orig_link_settings_stored)
374 autoc = hw->mac.orig_autoc;
376 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
378 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
379 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
380 *speed = IXGBE_LINK_SPEED_1GB_FULL;
384 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
385 *speed = IXGBE_LINK_SPEED_10GB_FULL;
389 case IXGBE_AUTOC_LMS_1G_AN:
390 *speed = IXGBE_LINK_SPEED_1GB_FULL;
394 case IXGBE_AUTOC_LMS_10G_SERIAL:
395 *speed = IXGBE_LINK_SPEED_10GB_FULL;
399 case IXGBE_AUTOC_LMS_KX4_KX_KR:
400 case IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN:
401 *speed = IXGBE_LINK_SPEED_UNKNOWN;
402 if (autoc & IXGBE_AUTOC_KR_SUPP)
403 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
404 if (autoc & IXGBE_AUTOC_KX4_SUPP)
405 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
406 if (autoc & IXGBE_AUTOC_KX_SUPP)
407 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
411 case IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII:
412 *speed = IXGBE_LINK_SPEED_100_FULL;
413 if (autoc & IXGBE_AUTOC_KR_SUPP)
414 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
415 if (autoc & IXGBE_AUTOC_KX4_SUPP)
416 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
417 if (autoc & IXGBE_AUTOC_KX_SUPP)
418 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
422 case IXGBE_AUTOC_LMS_SGMII_1G_100M:
423 *speed = IXGBE_LINK_SPEED_1GB_FULL | IXGBE_LINK_SPEED_100_FULL;
428 return IXGBE_ERR_LINK_SETUP;
431 if (hw->phy.multispeed_fiber) {
432 *speed |= IXGBE_LINK_SPEED_10GB_FULL |
433 IXGBE_LINK_SPEED_1GB_FULL;
435 /* QSFP must not enable auto-negotiation */
436 if (hw->phy.media_type == ixgbe_media_type_fiber_qsfp)
446 * ixgbe_get_media_type_82599 - Get media type
447 * @hw: pointer to hardware structure
449 * Returns the media type (fiber, copper, backplane)
451 static enum ixgbe_media_type ixgbe_get_media_type_82599(struct ixgbe_hw *hw)
453 /* Detect if there is a copper PHY attached. */
454 switch (hw->phy.type) {
455 case ixgbe_phy_cu_unknown:
457 return ixgbe_media_type_copper;
463 switch (hw->device_id) {
464 case IXGBE_DEV_ID_82599_KX4:
465 case IXGBE_DEV_ID_82599_KX4_MEZZ:
466 case IXGBE_DEV_ID_82599_COMBO_BACKPLANE:
467 case IXGBE_DEV_ID_82599_KR:
468 case IXGBE_DEV_ID_82599_BACKPLANE_FCOE:
469 case IXGBE_DEV_ID_82599_XAUI_LOM:
470 /* Default device ID is mezzanine card KX/KX4 */
471 return ixgbe_media_type_backplane;
473 case IXGBE_DEV_ID_82599_SFP:
474 case IXGBE_DEV_ID_82599_SFP_FCOE:
475 case IXGBE_DEV_ID_82599_SFP_EM:
476 case IXGBE_DEV_ID_82599_SFP_SF2:
477 case IXGBE_DEV_ID_82599_SFP_SF_QP:
478 case IXGBE_DEV_ID_82599EN_SFP:
479 return ixgbe_media_type_fiber;
481 case IXGBE_DEV_ID_82599_CX4:
482 return ixgbe_media_type_cx4;
484 case IXGBE_DEV_ID_82599_T3_LOM:
485 return ixgbe_media_type_copper;
487 case IXGBE_DEV_ID_82599_LS:
488 return ixgbe_media_type_fiber_lco;
490 case IXGBE_DEV_ID_82599_QSFP_SF_QP:
491 return ixgbe_media_type_fiber_qsfp;
494 return ixgbe_media_type_unknown;
499 * ixgbe_stop_mac_link_on_d3_82599 - Disables link on D3
500 * @hw: pointer to hardware structure
502 * Disables link, should be called during D3 power down sequence.
505 static void ixgbe_stop_mac_link_on_d3_82599(struct ixgbe_hw *hw)
510 hw->eeprom.ops.read(hw, IXGBE_EEPROM_CTRL_2, &ee_ctrl_2);
512 if (!ixgbe_mng_present(hw) && !hw->wol_enabled &&
513 ee_ctrl_2 & IXGBE_EEPROM_CCD_BIT) {
514 autoc2_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
515 autoc2_reg |= IXGBE_AUTOC2_LINK_DISABLE_ON_D3_MASK;
516 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2_reg);
521 * ixgbe_start_mac_link_82599 - Setup MAC link settings
522 * @hw: pointer to hardware structure
523 * @autoneg_wait_to_complete: true when waiting for completion is needed
525 * Configures link settings based on values in the ixgbe_hw struct.
526 * Restarts the link. Performs autonegotiation if needed.
528 static s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw,
529 bool autoneg_wait_to_complete)
535 bool got_lock = false;
537 if (ixgbe_verify_lesm_fw_enabled_82599(hw)) {
538 status = hw->mac.ops.acquire_swfw_sync(hw,
539 IXGBE_GSSR_MAC_CSR_SM);
547 ixgbe_reset_pipeline_82599(hw);
550 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
552 /* Only poll for autoneg to complete if specified to do so */
553 if (autoneg_wait_to_complete) {
554 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
555 if ((autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
556 IXGBE_AUTOC_LMS_KX4_KX_KR ||
557 (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
558 IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
559 (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
560 IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
561 links_reg = 0; /* Just in case Autoneg time = 0 */
562 for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
563 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
564 if (links_reg & IXGBE_LINKS_KX_AN_COMP)
568 if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
569 status = IXGBE_ERR_AUTONEG_NOT_COMPLETE;
570 hw_dbg(hw, "Autoneg did not complete.\n");
575 /* Add delay to filter out noises during initial link setup */
582 * ixgbe_disable_tx_laser_multispeed_fiber - Disable Tx laser
583 * @hw: pointer to hardware structure
585 * The base drivers may require better control over SFP+ module
586 * PHY states. This includes selectively shutting down the Tx
587 * laser on the PHY, effectively halting physical link.
589 static void ixgbe_disable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
591 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
593 /* Blocked by MNG FW so bail */
594 if (ixgbe_check_reset_blocked(hw))
597 /* Disable tx laser; allow 100us to go dark per spec */
598 esdp_reg |= IXGBE_ESDP_SDP3;
599 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
600 IXGBE_WRITE_FLUSH(hw);
605 * ixgbe_enable_tx_laser_multispeed_fiber - Enable Tx laser
606 * @hw: pointer to hardware structure
608 * The base drivers may require better control over SFP+ module
609 * PHY states. This includes selectively turning on the Tx
610 * laser on the PHY, effectively starting physical link.
612 static void ixgbe_enable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
614 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
616 /* Enable tx laser; allow 100ms to light up */
617 esdp_reg &= ~IXGBE_ESDP_SDP3;
618 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
619 IXGBE_WRITE_FLUSH(hw);
624 * ixgbe_flap_tx_laser_multispeed_fiber - Flap Tx laser
625 * @hw: pointer to hardware structure
627 * When the driver changes the link speeds that it can support,
628 * it sets autotry_restart to true to indicate that we need to
629 * initiate a new autotry session with the link partner. To do
630 * so, we set the speed then disable and re-enable the tx laser, to
631 * alert the link partner that it also needs to restart autotry on its
632 * end. This is consistent with true clause 37 autoneg, which also
633 * involves a loss of signal.
635 static void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
637 /* Blocked by MNG FW so bail */
638 if (ixgbe_check_reset_blocked(hw))
641 if (hw->mac.autotry_restart) {
642 ixgbe_disable_tx_laser_multispeed_fiber(hw);
643 ixgbe_enable_tx_laser_multispeed_fiber(hw);
644 hw->mac.autotry_restart = false;
649 * ixgbe_set_hard_rate_select_speed - Set module link speed
650 * @hw: pointer to hardware structure
651 * @speed: link speed to set
653 * Set module link speed via RS0/RS1 rate select pins.
656 ixgbe_set_hard_rate_select_speed(struct ixgbe_hw *hw, ixgbe_link_speed speed)
658 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
661 case IXGBE_LINK_SPEED_10GB_FULL:
662 esdp_reg |= (IXGBE_ESDP_SDP5_DIR | IXGBE_ESDP_SDP5);
664 case IXGBE_LINK_SPEED_1GB_FULL:
665 esdp_reg &= ~IXGBE_ESDP_SDP5;
666 esdp_reg |= IXGBE_ESDP_SDP5_DIR;
669 hw_dbg(hw, "Invalid fixed module speed\n");
673 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
674 IXGBE_WRITE_FLUSH(hw);
678 * ixgbe_setup_mac_link_smartspeed - Set MAC link speed using SmartSpeed
679 * @hw: pointer to hardware structure
680 * @speed: new link speed
681 * @autoneg_wait_to_complete: true when waiting for completion is needed
683 * Implements the Intel SmartSpeed algorithm.
685 static s32 ixgbe_setup_mac_link_smartspeed(struct ixgbe_hw *hw,
686 ixgbe_link_speed speed,
687 bool autoneg_wait_to_complete)
690 ixgbe_link_speed link_speed = IXGBE_LINK_SPEED_UNKNOWN;
692 bool link_up = false;
693 u32 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
695 /* Set autoneg_advertised value based on input link speed */
696 hw->phy.autoneg_advertised = 0;
698 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
699 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_10GB_FULL;
701 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
702 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_1GB_FULL;
704 if (speed & IXGBE_LINK_SPEED_100_FULL)
705 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_100_FULL;
708 * Implement Intel SmartSpeed algorithm. SmartSpeed will reduce the
709 * autoneg advertisement if link is unable to be established at the
710 * highest negotiated rate. This can sometimes happen due to integrity
711 * issues with the physical media connection.
714 /* First, try to get link with full advertisement */
715 hw->phy.smart_speed_active = false;
716 for (j = 0; j < IXGBE_SMARTSPEED_MAX_RETRIES; j++) {
717 status = ixgbe_setup_mac_link_82599(hw, speed,
718 autoneg_wait_to_complete);
723 * Wait for the controller to acquire link. Per IEEE 802.3ap,
724 * Section 73.10.2, we may have to wait up to 500ms if KR is
725 * attempted, or 200ms if KX/KX4/BX/BX4 is attempted, per
726 * Table 9 in the AN MAS.
728 for (i = 0; i < 5; i++) {
731 /* If we have link, just jump out */
732 status = hw->mac.ops.check_link(hw, &link_speed,
743 * We didn't get link. If we advertised KR plus one of KX4/KX
744 * (or BX4/BX), then disable KR and try again.
746 if (((autoc_reg & IXGBE_AUTOC_KR_SUPP) == 0) ||
747 ((autoc_reg & IXGBE_AUTOC_KX4_KX_SUPP_MASK) == 0))
750 /* Turn SmartSpeed on to disable KR support */
751 hw->phy.smart_speed_active = true;
752 status = ixgbe_setup_mac_link_82599(hw, speed,
753 autoneg_wait_to_complete);
758 * Wait for the controller to acquire link. 600ms will allow for
759 * the AN link_fail_inhibit_timer as well for multiple cycles of
760 * parallel detect, both 10g and 1g. This allows for the maximum
761 * connect attempts as defined in the AN MAS table 73-7.
763 for (i = 0; i < 6; i++) {
766 /* If we have link, just jump out */
767 status = hw->mac.ops.check_link(hw, &link_speed,
776 /* We didn't get link. Turn SmartSpeed back off. */
777 hw->phy.smart_speed_active = false;
778 status = ixgbe_setup_mac_link_82599(hw, speed,
779 autoneg_wait_to_complete);
782 if (link_up && (link_speed == IXGBE_LINK_SPEED_1GB_FULL))
783 hw_dbg(hw, "Smartspeed has downgraded the link speed from the maximum advertised\n");
788 * ixgbe_setup_mac_link_82599 - Set MAC link speed
789 * @hw: pointer to hardware structure
790 * @speed: new link speed
791 * @autoneg_wait_to_complete: true when waiting for completion is needed
793 * Set the link speed in the AUTOC register and restarts link.
795 static s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw,
796 ixgbe_link_speed speed,
797 bool autoneg_wait_to_complete)
799 bool autoneg = false;
801 u32 pma_pmd_1g, link_mode, links_reg, i;
802 u32 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
803 u32 pma_pmd_10g_serial = autoc2 & IXGBE_AUTOC2_10G_SERIAL_PMA_PMD_MASK;
804 ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN;
806 /* holds the value of AUTOC register at this current point in time */
807 u32 current_autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
808 /* holds the cached value of AUTOC register */
810 /* temporary variable used for comparison purposes */
811 u32 autoc = current_autoc;
813 /* Check to see if speed passed in is supported. */
814 status = hw->mac.ops.get_link_capabilities(hw, &link_capabilities,
819 speed &= link_capabilities;
821 if (speed == IXGBE_LINK_SPEED_UNKNOWN)
822 return IXGBE_ERR_LINK_SETUP;
824 /* Use stored value (EEPROM defaults) of AUTOC to find KR/KX4 support*/
825 if (hw->mac.orig_link_settings_stored)
826 orig_autoc = hw->mac.orig_autoc;
830 link_mode = autoc & IXGBE_AUTOC_LMS_MASK;
831 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;
833 if (link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR ||
834 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
835 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
836 /* Set KX4/KX/KR support according to speed requested */
837 autoc &= ~(IXGBE_AUTOC_KX4_KX_SUPP_MASK | IXGBE_AUTOC_KR_SUPP);
838 if (speed & IXGBE_LINK_SPEED_10GB_FULL) {
839 if (orig_autoc & IXGBE_AUTOC_KX4_SUPP)
840 autoc |= IXGBE_AUTOC_KX4_SUPP;
841 if ((orig_autoc & IXGBE_AUTOC_KR_SUPP) &&
842 (hw->phy.smart_speed_active == false))
843 autoc |= IXGBE_AUTOC_KR_SUPP;
845 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
846 autoc |= IXGBE_AUTOC_KX_SUPP;
847 } else if ((pma_pmd_1g == IXGBE_AUTOC_1G_SFI) &&
848 (link_mode == IXGBE_AUTOC_LMS_1G_LINK_NO_AN ||
849 link_mode == IXGBE_AUTOC_LMS_1G_AN)) {
850 /* Switch from 1G SFI to 10G SFI if requested */
851 if ((speed == IXGBE_LINK_SPEED_10GB_FULL) &&
852 (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI)) {
853 autoc &= ~IXGBE_AUTOC_LMS_MASK;
854 autoc |= IXGBE_AUTOC_LMS_10G_SERIAL;
856 } else if ((pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI) &&
857 (link_mode == IXGBE_AUTOC_LMS_10G_SERIAL)) {
858 /* Switch from 10G SFI to 1G SFI if requested */
859 if ((speed == IXGBE_LINK_SPEED_1GB_FULL) &&
860 (pma_pmd_1g == IXGBE_AUTOC_1G_SFI)) {
861 autoc &= ~IXGBE_AUTOC_LMS_MASK;
863 autoc |= IXGBE_AUTOC_LMS_1G_AN;
865 autoc |= IXGBE_AUTOC_LMS_1G_LINK_NO_AN;
869 if (autoc != current_autoc) {
871 status = hw->mac.ops.prot_autoc_write(hw, autoc, false);
875 /* Only poll for autoneg to complete if specified to do so */
876 if (autoneg_wait_to_complete) {
877 if (link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR ||
878 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
879 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
880 links_reg = 0; /*Just in case Autoneg time=0*/
881 for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
883 IXGBE_READ_REG(hw, IXGBE_LINKS);
884 if (links_reg & IXGBE_LINKS_KX_AN_COMP)
888 if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
890 IXGBE_ERR_AUTONEG_NOT_COMPLETE;
891 hw_dbg(hw, "Autoneg did not complete.\n");
896 /* Add delay to filter out noises during initial link setup */
904 * ixgbe_setup_copper_link_82599 - Set the PHY autoneg advertised field
905 * @hw: pointer to hardware structure
906 * @speed: new link speed
907 * @autoneg_wait_to_complete: true if waiting is needed to complete
909 * Restarts link on PHY and MAC based on settings passed in.
911 static s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw,
912 ixgbe_link_speed speed,
913 bool autoneg_wait_to_complete)
917 /* Setup the PHY according to input speed */
918 status = hw->phy.ops.setup_link_speed(hw, speed,
919 autoneg_wait_to_complete);
921 ixgbe_start_mac_link_82599(hw, autoneg_wait_to_complete);
927 * ixgbe_reset_hw_82599 - Perform hardware reset
928 * @hw: pointer to hardware structure
930 * Resets the hardware by resetting the transmit and receive units, masks
931 * and clears all interrupts, perform a PHY reset, and perform a link (MAC)
934 static s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw)
936 ixgbe_link_speed link_speed;
938 u32 ctrl, i, autoc, autoc2;
940 bool link_up = false;
942 /* Call adapter stop to disable tx/rx and clear interrupts */
943 status = hw->mac.ops.stop_adapter(hw);
947 /* flush pending Tx transactions */
948 ixgbe_clear_tx_pending(hw);
950 /* PHY ops must be identified and initialized prior to reset */
952 /* Identify PHY and related function pointers */
953 status = hw->phy.ops.init(hw);
955 if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
958 /* Setup SFP module if there is one present. */
959 if (hw->phy.sfp_setup_needed) {
960 status = hw->mac.ops.setup_sfp(hw);
961 hw->phy.sfp_setup_needed = false;
964 if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
968 if (hw->phy.reset_disable == false && hw->phy.ops.reset != NULL)
969 hw->phy.ops.reset(hw);
971 /* remember AUTOC from before we reset */
972 curr_lms = IXGBE_READ_REG(hw, IXGBE_AUTOC) & IXGBE_AUTOC_LMS_MASK;
976 * Issue global reset to the MAC. Needs to be SW reset if link is up.
977 * If link reset is used when link is up, it might reset the PHY when
978 * mng is using it. If link is down or the flag to force full link
979 * reset is set, then perform link reset.
981 ctrl = IXGBE_CTRL_LNK_RST;
982 if (!hw->force_full_reset) {
983 hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
985 ctrl = IXGBE_CTRL_RST;
988 ctrl |= IXGBE_READ_REG(hw, IXGBE_CTRL);
989 IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
990 IXGBE_WRITE_FLUSH(hw);
991 usleep_range(1000, 1200);
993 /* Poll for reset bit to self-clear indicating reset is complete */
994 for (i = 0; i < 10; i++) {
995 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
996 if (!(ctrl & IXGBE_CTRL_RST_MASK))
1001 if (ctrl & IXGBE_CTRL_RST_MASK) {
1002 status = IXGBE_ERR_RESET_FAILED;
1003 hw_dbg(hw, "Reset polling failed to complete.\n");
1009 * Double resets are required for recovery from certain error
1010 * conditions. Between resets, it is necessary to stall to allow time
1011 * for any pending HW events to complete.
1013 if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
1014 hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
1019 * Store the original AUTOC/AUTOC2 values if they have not been
1020 * stored off yet. Otherwise restore the stored original
1021 * values since the reset operation sets back to defaults.
1023 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
1024 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
1026 /* Enable link if disabled in NVM */
1027 if (autoc2 & IXGBE_AUTOC2_LINK_DISABLE_MASK) {
1028 autoc2 &= ~IXGBE_AUTOC2_LINK_DISABLE_MASK;
1029 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2);
1030 IXGBE_WRITE_FLUSH(hw);
1033 if (hw->mac.orig_link_settings_stored == false) {
1034 hw->mac.orig_autoc = autoc;
1035 hw->mac.orig_autoc2 = autoc2;
1036 hw->mac.orig_link_settings_stored = true;
1039 /* If MNG FW is running on a multi-speed device that
1040 * doesn't autoneg with out driver support we need to
1041 * leave LMS in the state it was before we MAC reset.
1042 * Likewise if we support WoL we don't want change the
1045 if ((hw->phy.multispeed_fiber && ixgbe_mng_enabled(hw)) ||
1047 hw->mac.orig_autoc =
1048 (hw->mac.orig_autoc & ~IXGBE_AUTOC_LMS_MASK) |
1051 if (autoc != hw->mac.orig_autoc) {
1052 status = hw->mac.ops.prot_autoc_write(hw,
1059 if ((autoc2 & IXGBE_AUTOC2_UPPER_MASK) !=
1060 (hw->mac.orig_autoc2 & IXGBE_AUTOC2_UPPER_MASK)) {
1061 autoc2 &= ~IXGBE_AUTOC2_UPPER_MASK;
1062 autoc2 |= (hw->mac.orig_autoc2 &
1063 IXGBE_AUTOC2_UPPER_MASK);
1064 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2);
1068 /* Store the permanent mac address */
1069 hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
1072 * Store MAC address from RAR0, clear receive address registers, and
1073 * clear the multicast table. Also reset num_rar_entries to 128,
1074 * since we modify this value when programming the SAN MAC address.
1076 hw->mac.num_rar_entries = 128;
1077 hw->mac.ops.init_rx_addrs(hw);
1079 /* Store the permanent SAN mac address */
1080 hw->mac.ops.get_san_mac_addr(hw, hw->mac.san_addr);
1082 /* Add the SAN MAC address to the RAR only if it's a valid address */
1083 if (is_valid_ether_addr(hw->mac.san_addr)) {
1084 /* Save the SAN MAC RAR index */
1085 hw->mac.san_mac_rar_index = hw->mac.num_rar_entries - 1;
1087 hw->mac.ops.set_rar(hw, hw->mac.san_mac_rar_index,
1088 hw->mac.san_addr, 0, IXGBE_RAH_AV);
1090 /* clear VMDq pool/queue selection for this RAR */
1091 hw->mac.ops.clear_vmdq(hw, hw->mac.san_mac_rar_index,
1092 IXGBE_CLEAR_VMDQ_ALL);
1094 /* Reserve the last RAR for the SAN MAC address */
1095 hw->mac.num_rar_entries--;
1098 /* Store the alternative WWNN/WWPN prefix */
1099 hw->mac.ops.get_wwn_prefix(hw, &hw->mac.wwnn_prefix,
1100 &hw->mac.wwpn_prefix);
1106 * ixgbe_fdir_check_cmd_complete - poll to check whether FDIRCMD is complete
1107 * @hw: pointer to hardware structure
1108 * @fdircmd: current value of FDIRCMD register
1110 static s32 ixgbe_fdir_check_cmd_complete(struct ixgbe_hw *hw, u32 *fdircmd)
1114 for (i = 0; i < IXGBE_FDIRCMD_CMD_POLL; i++) {
1115 *fdircmd = IXGBE_READ_REG(hw, IXGBE_FDIRCMD);
1116 if (!(*fdircmd & IXGBE_FDIRCMD_CMD_MASK))
1121 return IXGBE_ERR_FDIR_CMD_INCOMPLETE;
1125 * ixgbe_reinit_fdir_tables_82599 - Reinitialize Flow Director tables.
1126 * @hw: pointer to hardware structure
1128 s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw)
1131 u32 fdirctrl = IXGBE_READ_REG(hw, IXGBE_FDIRCTRL);
1135 fdirctrl &= ~IXGBE_FDIRCTRL_INIT_DONE;
1138 * Before starting reinitialization process,
1139 * FDIRCMD.CMD must be zero.
1141 err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
1143 hw_dbg(hw, "Flow Director previous command did not complete, aborting table re-initialization.\n");
1147 IXGBE_WRITE_REG(hw, IXGBE_FDIRFREE, 0);
1148 IXGBE_WRITE_FLUSH(hw);
1150 * 82599 adapters flow director init flow cannot be restarted,
1151 * Workaround 82599 silicon errata by performing the following steps
1152 * before re-writing the FDIRCTRL control register with the same value.
1153 * - write 1 to bit 8 of FDIRCMD register &
1154 * - write 0 to bit 8 of FDIRCMD register
1156 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1157 (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) |
1158 IXGBE_FDIRCMD_CLEARHT));
1159 IXGBE_WRITE_FLUSH(hw);
1160 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1161 (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) &
1162 ~IXGBE_FDIRCMD_CLEARHT));
1163 IXGBE_WRITE_FLUSH(hw);
1165 * Clear FDIR Hash register to clear any leftover hashes
1166 * waiting to be programmed.
1168 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, 0x00);
1169 IXGBE_WRITE_FLUSH(hw);
1171 IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
1172 IXGBE_WRITE_FLUSH(hw);
1174 /* Poll init-done after we write FDIRCTRL register */
1175 for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
1176 if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) &
1177 IXGBE_FDIRCTRL_INIT_DONE)
1179 usleep_range(1000, 2000);
1181 if (i >= IXGBE_FDIR_INIT_DONE_POLL) {
1182 hw_dbg(hw, "Flow Director Signature poll time exceeded!\n");
1183 return IXGBE_ERR_FDIR_REINIT_FAILED;
1186 /* Clear FDIR statistics registers (read to clear) */
1187 IXGBE_READ_REG(hw, IXGBE_FDIRUSTAT);
1188 IXGBE_READ_REG(hw, IXGBE_FDIRFSTAT);
1189 IXGBE_READ_REG(hw, IXGBE_FDIRMATCH);
1190 IXGBE_READ_REG(hw, IXGBE_FDIRMISS);
1191 IXGBE_READ_REG(hw, IXGBE_FDIRLEN);
1197 * ixgbe_fdir_enable_82599 - Initialize Flow Director control registers
1198 * @hw: pointer to hardware structure
1199 * @fdirctrl: value to write to flow director control register
1201 static void ixgbe_fdir_enable_82599(struct ixgbe_hw *hw, u32 fdirctrl)
1205 /* Prime the keys for hashing */
1206 IXGBE_WRITE_REG(hw, IXGBE_FDIRHKEY, IXGBE_ATR_BUCKET_HASH_KEY);
1207 IXGBE_WRITE_REG(hw, IXGBE_FDIRSKEY, IXGBE_ATR_SIGNATURE_HASH_KEY);
1210 * Poll init-done after we write the register. Estimated times:
1211 * 10G: PBALLOC = 11b, timing is 60us
1212 * 1G: PBALLOC = 11b, timing is 600us
1213 * 100M: PBALLOC = 11b, timing is 6ms
1215 * Multiple these timings by 4 if under full Rx load
1217 * So we'll poll for IXGBE_FDIR_INIT_DONE_POLL times, sleeping for
1218 * 1 msec per poll time. If we're at line rate and drop to 100M, then
1219 * this might not finish in our poll time, but we can live with that
1222 IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
1223 IXGBE_WRITE_FLUSH(hw);
1224 for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
1225 if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) &
1226 IXGBE_FDIRCTRL_INIT_DONE)
1228 usleep_range(1000, 2000);
1231 if (i >= IXGBE_FDIR_INIT_DONE_POLL)
1232 hw_dbg(hw, "Flow Director poll time exceeded!\n");
1236 * ixgbe_init_fdir_signature_82599 - Initialize Flow Director signature filters
1237 * @hw: pointer to hardware structure
1238 * @fdirctrl: value to write to flow director control register, initially
1239 * contains just the value of the Rx packet buffer allocation
1241 s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 fdirctrl)
1244 * Continue setup of fdirctrl register bits:
1245 * Move the flexible bytes to use the ethertype - shift 6 words
1246 * Set the maximum length per hash bucket to 0xA filters
1247 * Send interrupt when 64 filters are left
1249 fdirctrl |= (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT) |
1250 (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT) |
1251 (4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT);
1253 /* write hashes and fdirctrl register, poll for completion */
1254 ixgbe_fdir_enable_82599(hw, fdirctrl);
1260 * ixgbe_init_fdir_perfect_82599 - Initialize Flow Director perfect filters
1261 * @hw: pointer to hardware structure
1262 * @fdirctrl: value to write to flow director control register, initially
1263 * contains just the value of the Rx packet buffer allocation
1265 s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 fdirctrl)
1268 * Continue setup of fdirctrl register bits:
1269 * Turn perfect match filtering on
1270 * Initialize the drop queue
1271 * Move the flexible bytes to use the ethertype - shift 6 words
1272 * Set the maximum length per hash bucket to 0xA filters
1273 * Send interrupt when 64 (0x4 * 16) filters are left
1275 fdirctrl |= IXGBE_FDIRCTRL_PERFECT_MATCH |
1276 (IXGBE_FDIR_DROP_QUEUE << IXGBE_FDIRCTRL_DROP_Q_SHIFT) |
1277 (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT) |
1278 (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT) |
1279 (4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT);
1281 /* write hashes and fdirctrl register, poll for completion */
1282 ixgbe_fdir_enable_82599(hw, fdirctrl);
1288 * These defines allow us to quickly generate all of the necessary instructions
1289 * in the function below by simply calling out IXGBE_COMPUTE_SIG_HASH_ITERATION
1290 * for values 0 through 15
1292 #define IXGBE_ATR_COMMON_HASH_KEY \
1293 (IXGBE_ATR_BUCKET_HASH_KEY & IXGBE_ATR_SIGNATURE_HASH_KEY)
1294 #define IXGBE_COMPUTE_SIG_HASH_ITERATION(_n) \
1297 if (IXGBE_ATR_COMMON_HASH_KEY & BIT(n)) \
1298 common_hash ^= lo_hash_dword >> n; \
1299 else if (IXGBE_ATR_BUCKET_HASH_KEY & BIT(n)) \
1300 bucket_hash ^= lo_hash_dword >> n; \
1301 else if (IXGBE_ATR_SIGNATURE_HASH_KEY & BIT(n)) \
1302 sig_hash ^= lo_hash_dword << (16 - n); \
1303 if (IXGBE_ATR_COMMON_HASH_KEY & BIT(n + 16)) \
1304 common_hash ^= hi_hash_dword >> n; \
1305 else if (IXGBE_ATR_BUCKET_HASH_KEY & BIT(n + 16)) \
1306 bucket_hash ^= hi_hash_dword >> n; \
1307 else if (IXGBE_ATR_SIGNATURE_HASH_KEY & BIT(n + 16)) \
1308 sig_hash ^= hi_hash_dword << (16 - n); \
1312 * ixgbe_atr_compute_sig_hash_82599 - Compute the signature hash
1313 * @stream: input bitstream to compute the hash on
1315 * This function is almost identical to the function above but contains
1316 * several optomizations such as unwinding all of the loops, letting the
1317 * compiler work out all of the conditional ifs since the keys are static
1318 * defines, and computing two keys at once since the hashed dword stream
1319 * will be the same for both keys.
1321 static u32 ixgbe_atr_compute_sig_hash_82599(union ixgbe_atr_hash_dword input,
1322 union ixgbe_atr_hash_dword common)
1324 u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
1325 u32 sig_hash = 0, bucket_hash = 0, common_hash = 0;
1327 /* record the flow_vm_vlan bits as they are a key part to the hash */
1328 flow_vm_vlan = ntohl(input.dword);
1330 /* generate common hash dword */
1331 hi_hash_dword = ntohl(common.dword);
1333 /* low dword is word swapped version of common */
1334 lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
1336 /* apply flow ID/VM pool/VLAN ID bits to hash words */
1337 hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);
1339 /* Process bits 0 and 16 */
1340 IXGBE_COMPUTE_SIG_HASH_ITERATION(0);
1343 * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
1344 * delay this because bit 0 of the stream should not be processed
1345 * so we do not add the vlan until after bit 0 was processed
1347 lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);
1349 /* Process remaining 30 bit of the key */
1350 IXGBE_COMPUTE_SIG_HASH_ITERATION(1);
1351 IXGBE_COMPUTE_SIG_HASH_ITERATION(2);
1352 IXGBE_COMPUTE_SIG_HASH_ITERATION(3);
1353 IXGBE_COMPUTE_SIG_HASH_ITERATION(4);
1354 IXGBE_COMPUTE_SIG_HASH_ITERATION(5);
1355 IXGBE_COMPUTE_SIG_HASH_ITERATION(6);
1356 IXGBE_COMPUTE_SIG_HASH_ITERATION(7);
1357 IXGBE_COMPUTE_SIG_HASH_ITERATION(8);
1358 IXGBE_COMPUTE_SIG_HASH_ITERATION(9);
1359 IXGBE_COMPUTE_SIG_HASH_ITERATION(10);
1360 IXGBE_COMPUTE_SIG_HASH_ITERATION(11);
1361 IXGBE_COMPUTE_SIG_HASH_ITERATION(12);
1362 IXGBE_COMPUTE_SIG_HASH_ITERATION(13);
1363 IXGBE_COMPUTE_SIG_HASH_ITERATION(14);
1364 IXGBE_COMPUTE_SIG_HASH_ITERATION(15);
1366 /* combine common_hash result with signature and bucket hashes */
1367 bucket_hash ^= common_hash;
1368 bucket_hash &= IXGBE_ATR_HASH_MASK;
1370 sig_hash ^= common_hash << 16;
1371 sig_hash &= IXGBE_ATR_HASH_MASK << 16;
1373 /* return completed signature hash */
1374 return sig_hash ^ bucket_hash;
1378 * ixgbe_atr_add_signature_filter_82599 - Adds a signature hash filter
1379 * @hw: pointer to hardware structure
1380 * @input: unique input dword
1381 * @common: compressed common input dword
1382 * @queue: queue index to direct traffic to
1384 * Note that the tunnel bit in input must not be set when the hardware
1385 * tunneling support does not exist.
1387 s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
1388 union ixgbe_atr_hash_dword input,
1389 union ixgbe_atr_hash_dword common,
1398 * Get the flow_type in order to program FDIRCMD properly
1399 * lowest 2 bits are FDIRCMD.L4TYPE, third lowest bit is FDIRCMD.IPV6
1401 tunnel = !!(input.formatted.flow_type & IXGBE_ATR_L4TYPE_TUNNEL_MASK);
1402 flow_type = input.formatted.flow_type &
1403 (IXGBE_ATR_L4TYPE_TUNNEL_MASK - 1);
1404 switch (flow_type) {
1405 case IXGBE_ATR_FLOW_TYPE_TCPV4:
1406 case IXGBE_ATR_FLOW_TYPE_UDPV4:
1407 case IXGBE_ATR_FLOW_TYPE_SCTPV4:
1408 case IXGBE_ATR_FLOW_TYPE_TCPV6:
1409 case IXGBE_ATR_FLOW_TYPE_UDPV6:
1410 case IXGBE_ATR_FLOW_TYPE_SCTPV6:
1413 hw_dbg(hw, " Error on flow type input\n");
1414 return IXGBE_ERR_CONFIG;
1417 /* configure FDIRCMD register */
1418 fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE |
1419 IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
1420 fdircmd |= (u32)flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
1421 fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
1423 fdircmd |= IXGBE_FDIRCMD_TUNNEL_FILTER;
1426 * The lower 32-bits of fdirhashcmd is for FDIRHASH, the upper 32-bits
1427 * is for FDIRCMD. Then do a 64-bit register write from FDIRHASH.
1429 fdirhashcmd = (u64)fdircmd << 32;
1430 fdirhashcmd |= ixgbe_atr_compute_sig_hash_82599(input, common);
1431 IXGBE_WRITE_REG64(hw, IXGBE_FDIRHASH, fdirhashcmd);
1433 hw_dbg(hw, "Tx Queue=%x hash=%x\n", queue, (u32)fdirhashcmd);
1438 #define IXGBE_COMPUTE_BKT_HASH_ITERATION(_n) \
1441 if (IXGBE_ATR_BUCKET_HASH_KEY & BIT(n)) \
1442 bucket_hash ^= lo_hash_dword >> n; \
1443 if (IXGBE_ATR_BUCKET_HASH_KEY & BIT(n + 16)) \
1444 bucket_hash ^= hi_hash_dword >> n; \
1448 * ixgbe_atr_compute_perfect_hash_82599 - Compute the perfect filter hash
1449 * @atr_input: input bitstream to compute the hash on
1450 * @input_mask: mask for the input bitstream
1452 * This function serves two main purposes. First it applies the input_mask
1453 * to the atr_input resulting in a cleaned up atr_input data stream.
1454 * Secondly it computes the hash and stores it in the bkt_hash field at
1455 * the end of the input byte stream. This way it will be available for
1456 * future use without needing to recompute the hash.
1458 void ixgbe_atr_compute_perfect_hash_82599(union ixgbe_atr_input *input,
1459 union ixgbe_atr_input *input_mask)
1462 u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
1463 u32 bucket_hash = 0, hi_dword = 0;
1466 /* Apply masks to input data */
1467 for (i = 0; i <= 10; i++)
1468 input->dword_stream[i] &= input_mask->dword_stream[i];
1470 /* record the flow_vm_vlan bits as they are a key part to the hash */
1471 flow_vm_vlan = ntohl(input->dword_stream[0]);
1473 /* generate common hash dword */
1474 for (i = 1; i <= 10; i++)
1475 hi_dword ^= input->dword_stream[i];
1476 hi_hash_dword = ntohl(hi_dword);
1478 /* low dword is word swapped version of common */
1479 lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
1481 /* apply flow ID/VM pool/VLAN ID bits to hash words */
1482 hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);
1484 /* Process bits 0 and 16 */
1485 IXGBE_COMPUTE_BKT_HASH_ITERATION(0);
1488 * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
1489 * delay this because bit 0 of the stream should not be processed
1490 * so we do not add the vlan until after bit 0 was processed
1492 lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);
1494 /* Process remaining 30 bit of the key */
1495 for (i = 1; i <= 15; i++)
1496 IXGBE_COMPUTE_BKT_HASH_ITERATION(i);
1499 * Limit hash to 13 bits since max bucket count is 8K.
1500 * Store result at the end of the input stream.
1502 input->formatted.bkt_hash = bucket_hash & 0x1FFF;
1506 * ixgbe_get_fdirtcpm_82599 - generate a tcp port from atr_input_masks
1507 * @input_mask: mask to be bit swapped
1509 * The source and destination port masks for flow director are bit swapped
1510 * in that bit 15 effects bit 0, 14 effects 1, 13, 2 etc. In order to
1511 * generate a correctly swapped value we need to bit swap the mask and that
1512 * is what is accomplished by this function.
1514 static u32 ixgbe_get_fdirtcpm_82599(union ixgbe_atr_input *input_mask)
1516 u32 mask = ntohs(input_mask->formatted.dst_port);
1518 mask <<= IXGBE_FDIRTCPM_DPORTM_SHIFT;
1519 mask |= ntohs(input_mask->formatted.src_port);
1520 mask = ((mask & 0x55555555) << 1) | ((mask & 0xAAAAAAAA) >> 1);
1521 mask = ((mask & 0x33333333) << 2) | ((mask & 0xCCCCCCCC) >> 2);
1522 mask = ((mask & 0x0F0F0F0F) << 4) | ((mask & 0xF0F0F0F0) >> 4);
1523 return ((mask & 0x00FF00FF) << 8) | ((mask & 0xFF00FF00) >> 8);
1527 * These two macros are meant to address the fact that we have registers
1528 * that are either all or in part big-endian. As a result on big-endian
1529 * systems we will end up byte swapping the value to little-endian before
1530 * it is byte swapped again and written to the hardware in the original
1531 * big-endian format.
1533 #define IXGBE_STORE_AS_BE32(_value) \
1534 (((u32)(_value) >> 24) | (((u32)(_value) & 0x00FF0000) >> 8) | \
1535 (((u32)(_value) & 0x0000FF00) << 8) | ((u32)(_value) << 24))
1537 #define IXGBE_WRITE_REG_BE32(a, reg, value) \
1538 IXGBE_WRITE_REG((a), (reg), IXGBE_STORE_AS_BE32(ntohl(value)))
1540 #define IXGBE_STORE_AS_BE16(_value) \
1541 ntohs(((u16)(_value) >> 8) | ((u16)(_value) << 8))
1543 s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
1544 union ixgbe_atr_input *input_mask)
1546 /* mask IPv6 since it is currently not supported */
1547 u32 fdirm = IXGBE_FDIRM_DIPv6;
1551 * Program the relevant mask registers. If src/dst_port or src/dst_addr
1552 * are zero, then assume a full mask for that field. Also assume that
1553 * a VLAN of 0 is unspecified, so mask that out as well. L4type
1554 * cannot be masked out in this implementation.
1556 * This also assumes IPv4 only. IPv6 masking isn't supported at this
1560 /* verify bucket hash is cleared on hash generation */
1561 if (input_mask->formatted.bkt_hash)
1562 hw_dbg(hw, " bucket hash should always be 0 in mask\n");
1564 /* Program FDIRM and verify partial masks */
1565 switch (input_mask->formatted.vm_pool & 0x7F) {
1567 fdirm |= IXGBE_FDIRM_POOL;
1571 hw_dbg(hw, " Error on vm pool mask\n");
1572 return IXGBE_ERR_CONFIG;
1575 switch (input_mask->formatted.flow_type & IXGBE_ATR_L4TYPE_MASK) {
1577 fdirm |= IXGBE_FDIRM_L4P;
1578 if (input_mask->formatted.dst_port ||
1579 input_mask->formatted.src_port) {
1580 hw_dbg(hw, " Error on src/dst port mask\n");
1581 return IXGBE_ERR_CONFIG;
1583 case IXGBE_ATR_L4TYPE_MASK:
1586 hw_dbg(hw, " Error on flow type mask\n");
1587 return IXGBE_ERR_CONFIG;
1590 switch (ntohs(input_mask->formatted.vlan_id) & 0xEFFF) {
1592 /* mask VLAN ID, fall through to mask VLAN priority */
1593 fdirm |= IXGBE_FDIRM_VLANID;
1595 /* mask VLAN priority */
1596 fdirm |= IXGBE_FDIRM_VLANP;
1599 /* mask VLAN ID only, fall through */
1600 fdirm |= IXGBE_FDIRM_VLANID;
1602 /* no VLAN fields masked */
1605 hw_dbg(hw, " Error on VLAN mask\n");
1606 return IXGBE_ERR_CONFIG;
1609 switch (input_mask->formatted.flex_bytes & 0xFFFF) {
1611 /* Mask Flex Bytes, fall through */
1612 fdirm |= IXGBE_FDIRM_FLEX;
1616 hw_dbg(hw, " Error on flexible byte mask\n");
1617 return IXGBE_ERR_CONFIG;
1620 /* Now mask VM pool and destination IPv6 - bits 5 and 2 */
1621 IXGBE_WRITE_REG(hw, IXGBE_FDIRM, fdirm);
1623 /* store the TCP/UDP port masks, bit reversed from port layout */
1624 fdirtcpm = ixgbe_get_fdirtcpm_82599(input_mask);
1626 /* write both the same so that UDP and TCP use the same mask */
1627 IXGBE_WRITE_REG(hw, IXGBE_FDIRTCPM, ~fdirtcpm);
1628 IXGBE_WRITE_REG(hw, IXGBE_FDIRUDPM, ~fdirtcpm);
1630 /* also use it for SCTP */
1631 switch (hw->mac.type) {
1632 case ixgbe_mac_X550:
1633 case ixgbe_mac_X550EM_x:
1634 case ixgbe_mac_x550em_a:
1635 IXGBE_WRITE_REG(hw, IXGBE_FDIRSCTPM, ~fdirtcpm);
1641 /* store source and destination IP masks (big-enian) */
1642 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIP4M,
1643 ~input_mask->formatted.src_ip[0]);
1644 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRDIP4M,
1645 ~input_mask->formatted.dst_ip[0]);
1650 s32 ixgbe_fdir_write_perfect_filter_82599(struct ixgbe_hw *hw,
1651 union ixgbe_atr_input *input,
1652 u16 soft_id, u8 queue)
1654 u32 fdirport, fdirvlan, fdirhash, fdircmd;
1657 /* currently IPv6 is not supported, must be programmed with 0 */
1658 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(0),
1659 input->formatted.src_ip[0]);
1660 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(1),
1661 input->formatted.src_ip[1]);
1662 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(2),
1663 input->formatted.src_ip[2]);
1665 /* record the source address (big-endian) */
1666 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPSA, input->formatted.src_ip[0]);
1668 /* record the first 32 bits of the destination address (big-endian) */
1669 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPDA, input->formatted.dst_ip[0]);
1671 /* record source and destination port (little-endian)*/
1672 fdirport = ntohs(input->formatted.dst_port);
1673 fdirport <<= IXGBE_FDIRPORT_DESTINATION_SHIFT;
1674 fdirport |= ntohs(input->formatted.src_port);
1675 IXGBE_WRITE_REG(hw, IXGBE_FDIRPORT, fdirport);
1677 /* record vlan (little-endian) and flex_bytes(big-endian) */
1678 fdirvlan = IXGBE_STORE_AS_BE16(input->formatted.flex_bytes);
1679 fdirvlan <<= IXGBE_FDIRVLAN_FLEX_SHIFT;
1680 fdirvlan |= ntohs(input->formatted.vlan_id);
1681 IXGBE_WRITE_REG(hw, IXGBE_FDIRVLAN, fdirvlan);
1683 /* configure FDIRHASH register */
1684 fdirhash = input->formatted.bkt_hash;
1685 fdirhash |= soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT;
1686 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
1689 * flush all previous writes to make certain registers are
1690 * programmed prior to issuing the command
1692 IXGBE_WRITE_FLUSH(hw);
1694 /* configure FDIRCMD register */
1695 fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE |
1696 IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
1697 if (queue == IXGBE_FDIR_DROP_QUEUE)
1698 fdircmd |= IXGBE_FDIRCMD_DROP;
1699 fdircmd |= input->formatted.flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
1700 fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
1701 fdircmd |= (u32)input->formatted.vm_pool << IXGBE_FDIRCMD_VT_POOL_SHIFT;
1703 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, fdircmd);
1704 err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
1706 hw_dbg(hw, "Flow Director command did not complete!\n");
1713 s32 ixgbe_fdir_erase_perfect_filter_82599(struct ixgbe_hw *hw,
1714 union ixgbe_atr_input *input,
1721 /* configure FDIRHASH register */
1722 fdirhash = input->formatted.bkt_hash;
1723 fdirhash |= soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT;
1724 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
1726 /* flush hash to HW */
1727 IXGBE_WRITE_FLUSH(hw);
1729 /* Query if filter is present */
1730 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, IXGBE_FDIRCMD_CMD_QUERY_REM_FILT);
1732 err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
1734 hw_dbg(hw, "Flow Director command did not complete!\n");
1738 /* if filter exists in hardware then remove it */
1739 if (fdircmd & IXGBE_FDIRCMD_FILTER_VALID) {
1740 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
1741 IXGBE_WRITE_FLUSH(hw);
1742 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1743 IXGBE_FDIRCMD_CMD_REMOVE_FLOW);
1750 * ixgbe_read_analog_reg8_82599 - Reads 8 bit Omer analog register
1751 * @hw: pointer to hardware structure
1752 * @reg: analog register to read
1755 * Performs read operation to Omer analog register specified.
1757 static s32 ixgbe_read_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 *val)
1761 IXGBE_WRITE_REG(hw, IXGBE_CORECTL, IXGBE_CORECTL_WRITE_CMD |
1763 IXGBE_WRITE_FLUSH(hw);
1765 core_ctl = IXGBE_READ_REG(hw, IXGBE_CORECTL);
1766 *val = (u8)core_ctl;
1772 * ixgbe_write_analog_reg8_82599 - Writes 8 bit Omer analog register
1773 * @hw: pointer to hardware structure
1774 * @reg: atlas register to write
1775 * @val: value to write
1777 * Performs write operation to Omer analog register specified.
1779 static s32 ixgbe_write_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 val)
1783 core_ctl = (reg << 8) | val;
1784 IXGBE_WRITE_REG(hw, IXGBE_CORECTL, core_ctl);
1785 IXGBE_WRITE_FLUSH(hw);
1792 * ixgbe_start_hw_82599 - Prepare hardware for Tx/Rx
1793 * @hw: pointer to hardware structure
1795 * Starts the hardware using the generic start_hw function
1796 * and the generation start_hw function.
1797 * Then performs revision-specific operations, if any.
1799 static s32 ixgbe_start_hw_82599(struct ixgbe_hw *hw)
1803 ret_val = ixgbe_start_hw_generic(hw);
1807 ret_val = ixgbe_start_hw_gen2(hw);
1811 /* We need to run link autotry after the driver loads */
1812 hw->mac.autotry_restart = true;
1814 return ixgbe_verify_fw_version_82599(hw);
1818 * ixgbe_identify_phy_82599 - Get physical layer module
1819 * @hw: pointer to hardware structure
1821 * Determines the physical layer module found on the current adapter.
1822 * If PHY already detected, maintains current PHY type in hw struct,
1823 * otherwise executes the PHY detection routine.
1825 static s32 ixgbe_identify_phy_82599(struct ixgbe_hw *hw)
1829 /* Detect PHY if not unknown - returns success if already detected. */
1830 status = ixgbe_identify_phy_generic(hw);
1832 /* 82599 10GBASE-T requires an external PHY */
1833 if (hw->mac.ops.get_media_type(hw) == ixgbe_media_type_copper)
1835 status = ixgbe_identify_module_generic(hw);
1838 /* Set PHY type none if no PHY detected */
1839 if (hw->phy.type == ixgbe_phy_unknown) {
1840 hw->phy.type = ixgbe_phy_none;
1844 /* Return error if SFP module has been detected but is not supported */
1845 if (hw->phy.type == ixgbe_phy_sfp_unsupported)
1846 return IXGBE_ERR_SFP_NOT_SUPPORTED;
1852 * ixgbe_enable_rx_dma_82599 - Enable the Rx DMA unit on 82599
1853 * @hw: pointer to hardware structure
1854 * @regval: register value to write to RXCTRL
1856 * Enables the Rx DMA unit for 82599
1858 static s32 ixgbe_enable_rx_dma_82599(struct ixgbe_hw *hw, u32 regval)
1861 * Workaround for 82599 silicon errata when enabling the Rx datapath.
1862 * If traffic is incoming before we enable the Rx unit, it could hang
1863 * the Rx DMA unit. Therefore, make sure the security engine is
1864 * completely disabled prior to enabling the Rx unit.
1866 hw->mac.ops.disable_rx_buff(hw);
1868 if (regval & IXGBE_RXCTRL_RXEN)
1869 hw->mac.ops.enable_rx(hw);
1871 hw->mac.ops.disable_rx(hw);
1873 hw->mac.ops.enable_rx_buff(hw);
1879 * ixgbe_verify_fw_version_82599 - verify fw version for 82599
1880 * @hw: pointer to hardware structure
1882 * Verifies that installed the firmware version is 0.6 or higher
1883 * for SFI devices. All 82599 SFI devices should have version 0.6 or higher.
1885 * Returns IXGBE_ERR_EEPROM_VERSION if the FW is not present or
1886 * if the FW version is not supported.
1888 static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw)
1890 s32 status = IXGBE_ERR_EEPROM_VERSION;
1891 u16 fw_offset, fw_ptp_cfg_offset;
1895 /* firmware check is only necessary for SFI devices */
1896 if (hw->phy.media_type != ixgbe_media_type_fiber)
1899 /* get the offset to the Firmware Module block */
1900 offset = IXGBE_FW_PTR;
1901 if (hw->eeprom.ops.read(hw, offset, &fw_offset))
1902 goto fw_version_err;
1904 if (fw_offset == 0 || fw_offset == 0xFFFF)
1905 return IXGBE_ERR_EEPROM_VERSION;
1907 /* get the offset to the Pass Through Patch Configuration block */
1908 offset = fw_offset + IXGBE_FW_PASSTHROUGH_PATCH_CONFIG_PTR;
1909 if (hw->eeprom.ops.read(hw, offset, &fw_ptp_cfg_offset))
1910 goto fw_version_err;
1912 if (fw_ptp_cfg_offset == 0 || fw_ptp_cfg_offset == 0xFFFF)
1913 return IXGBE_ERR_EEPROM_VERSION;
1915 /* get the firmware version */
1916 offset = fw_ptp_cfg_offset + IXGBE_FW_PATCH_VERSION_4;
1917 if (hw->eeprom.ops.read(hw, offset, &fw_version))
1918 goto fw_version_err;
1920 if (fw_version > 0x5)
1926 hw_err(hw, "eeprom read at offset %d failed\n", offset);
1927 return IXGBE_ERR_EEPROM_VERSION;
1931 * ixgbe_verify_lesm_fw_enabled_82599 - Checks LESM FW module state.
1932 * @hw: pointer to hardware structure
1934 * Returns true if the LESM FW module is present and enabled. Otherwise
1935 * returns false. Smart Speed must be disabled if LESM FW module is enabled.
1937 static bool ixgbe_verify_lesm_fw_enabled_82599(struct ixgbe_hw *hw)
1939 u16 fw_offset, fw_lesm_param_offset, fw_lesm_state;
1942 /* get the offset to the Firmware Module block */
1943 status = hw->eeprom.ops.read(hw, IXGBE_FW_PTR, &fw_offset);
1945 if (status || fw_offset == 0 || fw_offset == 0xFFFF)
1948 /* get the offset to the LESM Parameters block */
1949 status = hw->eeprom.ops.read(hw, (fw_offset +
1950 IXGBE_FW_LESM_PARAMETERS_PTR),
1951 &fw_lesm_param_offset);
1954 fw_lesm_param_offset == 0 || fw_lesm_param_offset == 0xFFFF)
1957 /* get the lesm state word */
1958 status = hw->eeprom.ops.read(hw, (fw_lesm_param_offset +
1959 IXGBE_FW_LESM_STATE_1),
1962 if (!status && (fw_lesm_state & IXGBE_FW_LESM_STATE_ENABLED))
1969 * ixgbe_read_eeprom_buffer_82599 - Read EEPROM word(s) using
1970 * fastest available method
1972 * @hw: pointer to hardware structure
1973 * @offset: offset of word in EEPROM to read
1974 * @words: number of words
1975 * @data: word(s) read from the EEPROM
1977 * Retrieves 16 bit word(s) read from EEPROM
1979 static s32 ixgbe_read_eeprom_buffer_82599(struct ixgbe_hw *hw, u16 offset,
1980 u16 words, u16 *data)
1982 struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
1984 /* If EEPROM is detected and can be addressed using 14 bits,
1985 * use EERD otherwise use bit bang
1987 if (eeprom->type == ixgbe_eeprom_spi &&
1988 offset + (words - 1) <= IXGBE_EERD_MAX_ADDR)
1989 return ixgbe_read_eerd_buffer_generic(hw, offset, words, data);
1991 return ixgbe_read_eeprom_buffer_bit_bang_generic(hw, offset, words,
1996 * ixgbe_read_eeprom_82599 - Read EEPROM word using
1997 * fastest available method
1999 * @hw: pointer to hardware structure
2000 * @offset: offset of word in the EEPROM to read
2001 * @data: word read from the EEPROM
2003 * Reads a 16 bit word from the EEPROM
2005 static s32 ixgbe_read_eeprom_82599(struct ixgbe_hw *hw,
2006 u16 offset, u16 *data)
2008 struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
2011 * If EEPROM is detected and can be addressed using 14 bits,
2012 * use EERD otherwise use bit bang
2014 if (eeprom->type == ixgbe_eeprom_spi && offset <= IXGBE_EERD_MAX_ADDR)
2015 return ixgbe_read_eerd_generic(hw, offset, data);
2017 return ixgbe_read_eeprom_bit_bang_generic(hw, offset, data);
2021 * ixgbe_reset_pipeline_82599 - perform pipeline reset
2023 * @hw: pointer to hardware structure
2025 * Reset pipeline by asserting Restart_AN together with LMS change to ensure
2026 * full pipeline reset. Note - We must hold the SW/FW semaphore before writing
2027 * to AUTOC, so this function assumes the semaphore is held.
2029 static s32 ixgbe_reset_pipeline_82599(struct ixgbe_hw *hw)
2033 u32 i, autoc_reg, autoc2_reg;
2035 /* Enable link if disabled in NVM */
2036 autoc2_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
2037 if (autoc2_reg & IXGBE_AUTOC2_LINK_DISABLE_MASK) {
2038 autoc2_reg &= ~IXGBE_AUTOC2_LINK_DISABLE_MASK;
2039 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2_reg);
2040 IXGBE_WRITE_FLUSH(hw);
2043 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
2044 autoc_reg |= IXGBE_AUTOC_AN_RESTART;
2046 /* Write AUTOC register with toggled LMS[2] bit and Restart_AN */
2047 IXGBE_WRITE_REG(hw, IXGBE_AUTOC,
2048 autoc_reg ^ (0x4 << IXGBE_AUTOC_LMS_SHIFT));
2050 /* Wait for AN to leave state 0 */
2051 for (i = 0; i < 10; i++) {
2052 usleep_range(4000, 8000);
2053 anlp1_reg = IXGBE_READ_REG(hw, IXGBE_ANLP1);
2054 if (anlp1_reg & IXGBE_ANLP1_AN_STATE_MASK)
2058 if (!(anlp1_reg & IXGBE_ANLP1_AN_STATE_MASK)) {
2059 hw_dbg(hw, "auto negotiation not completed\n");
2060 ret_val = IXGBE_ERR_RESET_FAILED;
2061 goto reset_pipeline_out;
2067 /* Write AUTOC register with original LMS field and Restart_AN */
2068 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
2069 IXGBE_WRITE_FLUSH(hw);
2075 * ixgbe_read_i2c_byte_82599 - Reads 8 bit word over I2C
2076 * @hw: pointer to hardware structure
2077 * @byte_offset: byte offset to read
2080 * Performs byte read operation to SFP module's EEPROM over I2C interface at
2081 * a specified device address.
2083 static s32 ixgbe_read_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
2084 u8 dev_addr, u8 *data)
2090 if (hw->phy.qsfp_shared_i2c_bus == true) {
2091 /* Acquire I2C bus ownership. */
2092 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2093 esdp |= IXGBE_ESDP_SDP0;
2094 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2095 IXGBE_WRITE_FLUSH(hw);
2098 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2099 if (esdp & IXGBE_ESDP_SDP1)
2102 usleep_range(5000, 10000);
2107 hw_dbg(hw, "Driver can't access resource, acquiring I2C bus timeout.\n");
2108 status = IXGBE_ERR_I2C;
2109 goto release_i2c_access;
2113 status = ixgbe_read_i2c_byte_generic(hw, byte_offset, dev_addr, data);
2116 if (hw->phy.qsfp_shared_i2c_bus == true) {
2117 /* Release I2C bus ownership. */
2118 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2119 esdp &= ~IXGBE_ESDP_SDP0;
2120 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2121 IXGBE_WRITE_FLUSH(hw);
2128 * ixgbe_write_i2c_byte_82599 - Writes 8 bit word over I2C
2129 * @hw: pointer to hardware structure
2130 * @byte_offset: byte offset to write
2131 * @data: value to write
2133 * Performs byte write operation to SFP module's EEPROM over I2C interface at
2134 * a specified device address.
2136 static s32 ixgbe_write_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
2137 u8 dev_addr, u8 data)
2143 if (hw->phy.qsfp_shared_i2c_bus == true) {
2144 /* Acquire I2C bus ownership. */
2145 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2146 esdp |= IXGBE_ESDP_SDP0;
2147 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2148 IXGBE_WRITE_FLUSH(hw);
2151 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2152 if (esdp & IXGBE_ESDP_SDP1)
2155 usleep_range(5000, 10000);
2160 hw_dbg(hw, "Driver can't access resource, acquiring I2C bus timeout.\n");
2161 status = IXGBE_ERR_I2C;
2162 goto release_i2c_access;
2166 status = ixgbe_write_i2c_byte_generic(hw, byte_offset, dev_addr, data);
2169 if (hw->phy.qsfp_shared_i2c_bus == true) {
2170 /* Release I2C bus ownership. */
2171 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2172 esdp &= ~IXGBE_ESDP_SDP0;
2173 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2174 IXGBE_WRITE_FLUSH(hw);
2180 static const struct ixgbe_mac_operations mac_ops_82599 = {
2181 .init_hw = &ixgbe_init_hw_generic,
2182 .reset_hw = &ixgbe_reset_hw_82599,
2183 .start_hw = &ixgbe_start_hw_82599,
2184 .clear_hw_cntrs = &ixgbe_clear_hw_cntrs_generic,
2185 .get_media_type = &ixgbe_get_media_type_82599,
2186 .enable_rx_dma = &ixgbe_enable_rx_dma_82599,
2187 .disable_rx_buff = &ixgbe_disable_rx_buff_generic,
2188 .enable_rx_buff = &ixgbe_enable_rx_buff_generic,
2189 .get_mac_addr = &ixgbe_get_mac_addr_generic,
2190 .get_san_mac_addr = &ixgbe_get_san_mac_addr_generic,
2191 .get_device_caps = &ixgbe_get_device_caps_generic,
2192 .get_wwn_prefix = &ixgbe_get_wwn_prefix_generic,
2193 .stop_adapter = &ixgbe_stop_adapter_generic,
2194 .get_bus_info = &ixgbe_get_bus_info_generic,
2195 .set_lan_id = &ixgbe_set_lan_id_multi_port_pcie,
2196 .read_analog_reg8 = &ixgbe_read_analog_reg8_82599,
2197 .write_analog_reg8 = &ixgbe_write_analog_reg8_82599,
2198 .stop_link_on_d3 = &ixgbe_stop_mac_link_on_d3_82599,
2199 .setup_link = &ixgbe_setup_mac_link_82599,
2200 .set_rxpba = &ixgbe_set_rxpba_generic,
2201 .check_link = &ixgbe_check_mac_link_generic,
2202 .get_link_capabilities = &ixgbe_get_link_capabilities_82599,
2203 .led_on = &ixgbe_led_on_generic,
2204 .led_off = &ixgbe_led_off_generic,
2205 .init_led_link_act = ixgbe_init_led_link_act_generic,
2206 .blink_led_start = &ixgbe_blink_led_start_generic,
2207 .blink_led_stop = &ixgbe_blink_led_stop_generic,
2208 .set_rar = &ixgbe_set_rar_generic,
2209 .clear_rar = &ixgbe_clear_rar_generic,
2210 .set_vmdq = &ixgbe_set_vmdq_generic,
2211 .set_vmdq_san_mac = &ixgbe_set_vmdq_san_mac_generic,
2212 .clear_vmdq = &ixgbe_clear_vmdq_generic,
2213 .init_rx_addrs = &ixgbe_init_rx_addrs_generic,
2214 .update_mc_addr_list = &ixgbe_update_mc_addr_list_generic,
2215 .enable_mc = &ixgbe_enable_mc_generic,
2216 .disable_mc = &ixgbe_disable_mc_generic,
2217 .clear_vfta = &ixgbe_clear_vfta_generic,
2218 .set_vfta = &ixgbe_set_vfta_generic,
2219 .fc_enable = &ixgbe_fc_enable_generic,
2220 .setup_fc = ixgbe_setup_fc_generic,
2221 .fc_autoneg = ixgbe_fc_autoneg,
2222 .set_fw_drv_ver = &ixgbe_set_fw_drv_ver_generic,
2223 .init_uta_tables = &ixgbe_init_uta_tables_generic,
2224 .setup_sfp = &ixgbe_setup_sfp_modules_82599,
2225 .set_mac_anti_spoofing = &ixgbe_set_mac_anti_spoofing,
2226 .set_vlan_anti_spoofing = &ixgbe_set_vlan_anti_spoofing,
2227 .acquire_swfw_sync = &ixgbe_acquire_swfw_sync,
2228 .release_swfw_sync = &ixgbe_release_swfw_sync,
2229 .init_swfw_sync = NULL,
2230 .get_thermal_sensor_data = &ixgbe_get_thermal_sensor_data_generic,
2231 .init_thermal_sensor_thresh = &ixgbe_init_thermal_sensor_thresh_generic,
2232 .prot_autoc_read = &prot_autoc_read_82599,
2233 .prot_autoc_write = &prot_autoc_write_82599,
2234 .enable_rx = &ixgbe_enable_rx_generic,
2235 .disable_rx = &ixgbe_disable_rx_generic,
2238 static const struct ixgbe_eeprom_operations eeprom_ops_82599 = {
2239 .init_params = &ixgbe_init_eeprom_params_generic,
2240 .read = &ixgbe_read_eeprom_82599,
2241 .read_buffer = &ixgbe_read_eeprom_buffer_82599,
2242 .write = &ixgbe_write_eeprom_generic,
2243 .write_buffer = &ixgbe_write_eeprom_buffer_bit_bang_generic,
2244 .calc_checksum = &ixgbe_calc_eeprom_checksum_generic,
2245 .validate_checksum = &ixgbe_validate_eeprom_checksum_generic,
2246 .update_checksum = &ixgbe_update_eeprom_checksum_generic,
2249 static const struct ixgbe_phy_operations phy_ops_82599 = {
2250 .identify = &ixgbe_identify_phy_82599,
2251 .identify_sfp = &ixgbe_identify_module_generic,
2252 .init = &ixgbe_init_phy_ops_82599,
2253 .reset = &ixgbe_reset_phy_generic,
2254 .read_reg = &ixgbe_read_phy_reg_generic,
2255 .write_reg = &ixgbe_write_phy_reg_generic,
2256 .setup_link = &ixgbe_setup_phy_link_generic,
2257 .setup_link_speed = &ixgbe_setup_phy_link_speed_generic,
2258 .read_i2c_byte = &ixgbe_read_i2c_byte_generic,
2259 .write_i2c_byte = &ixgbe_write_i2c_byte_generic,
2260 .read_i2c_sff8472 = &ixgbe_read_i2c_sff8472_generic,
2261 .read_i2c_eeprom = &ixgbe_read_i2c_eeprom_generic,
2262 .write_i2c_eeprom = &ixgbe_write_i2c_eeprom_generic,
2263 .check_overtemp = &ixgbe_tn_check_overtemp,
2266 const struct ixgbe_info ixgbe_82599_info = {
2267 .mac = ixgbe_mac_82599EB,
2268 .get_invariants = &ixgbe_get_invariants_82599,
2269 .mac_ops = &mac_ops_82599,
2270 .eeprom_ops = &eeprom_ops_82599,
2271 .phy_ops = &phy_ops_82599,
2272 .mbx_ops = &mbx_ops_generic,
2273 .mvals = ixgbe_mvals_8259X,