1 // SPDX-License-Identifier: GPL-2.0
2 /*******************************************************************************
4 Intel 10 Gigabit PCI Express Linux driver
5 Copyright(c) 1999 - 2016 Intel Corporation.
7 This program is free software; you can redistribute it and/or modify it
8 under the terms and conditions of the GNU General Public License,
9 version 2, as published by the Free Software Foundation.
11 This program is distributed in the hope it will be useful, but WITHOUT
12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16 You should have received a copy of the GNU General Public License along with
17 this program; if not, write to the Free Software Foundation, Inc.,
18 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
20 The full GNU General Public License is included in this distribution in
21 the file called "COPYING".
24 Linux NICS <linux.nics@intel.com>
25 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
26 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
28 *******************************************************************************/
30 #include <linux/pci.h>
31 #include <linux/delay.h>
32 #include <linux/sched.h>
35 #include "ixgbe_phy.h"
36 #include "ixgbe_mbx.h"
38 #define IXGBE_82599_MAX_TX_QUEUES 128
39 #define IXGBE_82599_MAX_RX_QUEUES 128
40 #define IXGBE_82599_RAR_ENTRIES 128
41 #define IXGBE_82599_MC_TBL_SIZE 128
42 #define IXGBE_82599_VFT_TBL_SIZE 128
43 #define IXGBE_82599_RX_PB_SIZE 512
45 static void ixgbe_disable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw);
46 static void ixgbe_enable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw);
47 static void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw);
49 ixgbe_set_hard_rate_select_speed(struct ixgbe_hw *, ixgbe_link_speed);
50 static s32 ixgbe_setup_mac_link_smartspeed(struct ixgbe_hw *hw,
51 ixgbe_link_speed speed,
52 bool autoneg_wait_to_complete);
53 static void ixgbe_stop_mac_link_on_d3_82599(struct ixgbe_hw *hw);
54 static s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw,
55 bool autoneg_wait_to_complete);
56 static s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw,
57 ixgbe_link_speed speed,
58 bool autoneg_wait_to_complete);
59 static s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw,
60 ixgbe_link_speed speed,
61 bool autoneg_wait_to_complete);
62 static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw);
63 static s32 ixgbe_read_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
64 u8 dev_addr, u8 *data);
65 static s32 ixgbe_write_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
66 u8 dev_addr, u8 data);
67 static s32 ixgbe_reset_pipeline_82599(struct ixgbe_hw *hw);
68 static bool ixgbe_verify_lesm_fw_enabled_82599(struct ixgbe_hw *hw);
70 bool ixgbe_mng_enabled(struct ixgbe_hw *hw)
72 u32 fwsm, manc, factps;
74 fwsm = IXGBE_READ_REG(hw, IXGBE_FWSM(hw));
75 if ((fwsm & IXGBE_FWSM_MODE_MASK) != IXGBE_FWSM_FW_MODE_PT)
78 manc = IXGBE_READ_REG(hw, IXGBE_MANC);
79 if (!(manc & IXGBE_MANC_RCV_TCO_EN))
82 factps = IXGBE_READ_REG(hw, IXGBE_FACTPS(hw));
83 if (factps & IXGBE_FACTPS_MNGCG)
89 static void ixgbe_init_mac_link_ops_82599(struct ixgbe_hw *hw)
91 struct ixgbe_mac_info *mac = &hw->mac;
93 /* enable the laser control functions for SFP+ fiber
96 if ((mac->ops.get_media_type(hw) == ixgbe_media_type_fiber) &&
97 !ixgbe_mng_enabled(hw)) {
98 mac->ops.disable_tx_laser =
99 &ixgbe_disable_tx_laser_multispeed_fiber;
100 mac->ops.enable_tx_laser =
101 &ixgbe_enable_tx_laser_multispeed_fiber;
102 mac->ops.flap_tx_laser = &ixgbe_flap_tx_laser_multispeed_fiber;
104 mac->ops.disable_tx_laser = NULL;
105 mac->ops.enable_tx_laser = NULL;
106 mac->ops.flap_tx_laser = NULL;
109 if (hw->phy.multispeed_fiber) {
110 /* Set up dual speed SFP+ support */
111 mac->ops.setup_link = &ixgbe_setup_mac_link_multispeed_fiber;
112 mac->ops.setup_mac_link = ixgbe_setup_mac_link_82599;
113 mac->ops.set_rate_select_speed =
114 ixgbe_set_hard_rate_select_speed;
116 if ((mac->ops.get_media_type(hw) ==
117 ixgbe_media_type_backplane) &&
118 (hw->phy.smart_speed == ixgbe_smart_speed_auto ||
119 hw->phy.smart_speed == ixgbe_smart_speed_on) &&
120 !ixgbe_verify_lesm_fw_enabled_82599(hw))
121 mac->ops.setup_link = &ixgbe_setup_mac_link_smartspeed;
123 mac->ops.setup_link = &ixgbe_setup_mac_link_82599;
127 static s32 ixgbe_setup_sfp_modules_82599(struct ixgbe_hw *hw)
130 u16 list_offset, data_offset, data_value;
132 if (hw->phy.sfp_type != ixgbe_sfp_type_unknown) {
133 ixgbe_init_mac_link_ops_82599(hw);
135 hw->phy.ops.reset = NULL;
137 ret_val = ixgbe_get_sfp_init_sequence_offsets(hw, &list_offset,
142 /* PHY config will finish before releasing the semaphore */
143 ret_val = hw->mac.ops.acquire_swfw_sync(hw,
144 IXGBE_GSSR_MAC_CSR_SM);
146 return IXGBE_ERR_SWFW_SYNC;
148 if (hw->eeprom.ops.read(hw, ++data_offset, &data_value))
150 while (data_value != 0xffff) {
151 IXGBE_WRITE_REG(hw, IXGBE_CORECTL, data_value);
152 IXGBE_WRITE_FLUSH(hw);
153 if (hw->eeprom.ops.read(hw, ++data_offset, &data_value))
157 /* Release the semaphore */
158 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
160 * Delay obtaining semaphore again to allow FW access,
161 * semaphore_delay is in ms usleep_range needs us.
163 usleep_range(hw->eeprom.semaphore_delay * 1000,
164 hw->eeprom.semaphore_delay * 2000);
166 /* Restart DSP and set SFI mode */
167 ret_val = hw->mac.ops.prot_autoc_write(hw,
168 hw->mac.orig_autoc | IXGBE_AUTOC_LMS_10G_SERIAL,
172 hw_dbg(hw, " sfp module setup not complete\n");
173 return IXGBE_ERR_SFP_SETUP_NOT_COMPLETE;
180 /* Release the semaphore */
181 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
182 /* Delay obtaining semaphore again to allow FW access,
183 * semaphore_delay is in ms usleep_range needs us.
185 usleep_range(hw->eeprom.semaphore_delay * 1000,
186 hw->eeprom.semaphore_delay * 2000);
187 hw_err(hw, "eeprom read at offset %d failed\n", data_offset);
188 return IXGBE_ERR_SFP_SETUP_NOT_COMPLETE;
192 * prot_autoc_read_82599 - Hides MAC differences needed for AUTOC read
193 * @hw: pointer to hardware structure
194 * @locked: Return the if we locked for this read.
195 * @reg_val: Value we read from AUTOC
197 * For this part (82599) we need to wrap read-modify-writes with a possible
198 * FW/SW lock. It is assumed this lock will be freed with the next
199 * prot_autoc_write_82599(). Note, that locked can only be true in cases
200 * where this function doesn't return an error.
202 static s32 prot_autoc_read_82599(struct ixgbe_hw *hw, bool *locked,
208 /* If LESM is on then we need to hold the SW/FW semaphore. */
209 if (ixgbe_verify_lesm_fw_enabled_82599(hw)) {
210 ret_val = hw->mac.ops.acquire_swfw_sync(hw,
211 IXGBE_GSSR_MAC_CSR_SM);
213 return IXGBE_ERR_SWFW_SYNC;
218 *reg_val = IXGBE_READ_REG(hw, IXGBE_AUTOC);
223 * prot_autoc_write_82599 - Hides MAC differences needed for AUTOC write
224 * @hw: pointer to hardware structure
225 * @autoc: value to write to AUTOC
226 * @locked: bool to indicate whether the SW/FW lock was already taken by
227 * previous proc_autoc_read_82599.
229 * This part (82599) may need to hold a the SW/FW lock around all writes to
230 * AUTOC. Likewise after a write we need to do a pipeline reset.
232 static s32 prot_autoc_write_82599(struct ixgbe_hw *hw, u32 autoc, bool locked)
236 /* Blocked by MNG FW so bail */
237 if (ixgbe_check_reset_blocked(hw))
240 /* We only need to get the lock if:
241 * - We didn't do it already (in the read part of a read-modify-write)
244 if (!locked && ixgbe_verify_lesm_fw_enabled_82599(hw)) {
245 ret_val = hw->mac.ops.acquire_swfw_sync(hw,
246 IXGBE_GSSR_MAC_CSR_SM);
248 return IXGBE_ERR_SWFW_SYNC;
253 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc);
254 ret_val = ixgbe_reset_pipeline_82599(hw);
257 /* Free the SW/FW semaphore as we either grabbed it here or
258 * already had it when this function was called.
261 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
266 static s32 ixgbe_get_invariants_82599(struct ixgbe_hw *hw)
268 struct ixgbe_mac_info *mac = &hw->mac;
270 ixgbe_init_mac_link_ops_82599(hw);
272 mac->mcft_size = IXGBE_82599_MC_TBL_SIZE;
273 mac->vft_size = IXGBE_82599_VFT_TBL_SIZE;
274 mac->num_rar_entries = IXGBE_82599_RAR_ENTRIES;
275 mac->rx_pb_size = IXGBE_82599_RX_PB_SIZE;
276 mac->max_rx_queues = IXGBE_82599_MAX_RX_QUEUES;
277 mac->max_tx_queues = IXGBE_82599_MAX_TX_QUEUES;
278 mac->max_msix_vectors = ixgbe_get_pcie_msix_count_generic(hw);
284 * ixgbe_init_phy_ops_82599 - PHY/SFP specific init
285 * @hw: pointer to hardware structure
287 * Initialize any function pointers that were not able to be
288 * set during get_invariants because the PHY/SFP type was
289 * not known. Perform the SFP init if necessary.
292 static s32 ixgbe_init_phy_ops_82599(struct ixgbe_hw *hw)
294 struct ixgbe_mac_info *mac = &hw->mac;
295 struct ixgbe_phy_info *phy = &hw->phy;
299 if (hw->device_id == IXGBE_DEV_ID_82599_QSFP_SF_QP) {
300 /* Store flag indicating I2C bus access control unit. */
301 hw->phy.qsfp_shared_i2c_bus = true;
303 /* Initialize access to QSFP+ I2C bus */
304 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
305 esdp |= IXGBE_ESDP_SDP0_DIR;
306 esdp &= ~IXGBE_ESDP_SDP1_DIR;
307 esdp &= ~IXGBE_ESDP_SDP0;
308 esdp &= ~IXGBE_ESDP_SDP0_NATIVE;
309 esdp &= ~IXGBE_ESDP_SDP1_NATIVE;
310 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
311 IXGBE_WRITE_FLUSH(hw);
313 phy->ops.read_i2c_byte = &ixgbe_read_i2c_byte_82599;
314 phy->ops.write_i2c_byte = &ixgbe_write_i2c_byte_82599;
317 /* Identify the PHY or SFP module */
318 ret_val = phy->ops.identify(hw);
320 /* Setup function pointers based on detected SFP module and speeds */
321 ixgbe_init_mac_link_ops_82599(hw);
323 /* If copper media, overwrite with copper function pointers */
324 if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper) {
325 mac->ops.setup_link = &ixgbe_setup_copper_link_82599;
326 mac->ops.get_link_capabilities =
327 &ixgbe_get_copper_link_capabilities_generic;
330 /* Set necessary function pointers based on phy type */
331 switch (hw->phy.type) {
333 phy->ops.check_link = &ixgbe_check_phy_link_tnx;
334 phy->ops.setup_link = &ixgbe_setup_phy_link_tnx;
344 * ixgbe_get_link_capabilities_82599 - Determines link capabilities
345 * @hw: pointer to hardware structure
346 * @speed: pointer to link speed
347 * @autoneg: true when autoneg or autotry is enabled
349 * Determines the link capabilities by reading the AUTOC register.
351 static s32 ixgbe_get_link_capabilities_82599(struct ixgbe_hw *hw,
352 ixgbe_link_speed *speed,
357 /* Determine 1G link capabilities off of SFP+ type */
358 if (hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core0 ||
359 hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core1 ||
360 hw->phy.sfp_type == ixgbe_sfp_type_1g_lx_core0 ||
361 hw->phy.sfp_type == ixgbe_sfp_type_1g_lx_core1 ||
362 hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core0 ||
363 hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core1) {
364 *speed = IXGBE_LINK_SPEED_1GB_FULL;
370 * Determine link capabilities based on the stored value of AUTOC,
371 * which represents EEPROM defaults. If AUTOC value has not been
372 * stored, use the current register value.
374 if (hw->mac.orig_link_settings_stored)
375 autoc = hw->mac.orig_autoc;
377 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
379 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
380 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
381 *speed = IXGBE_LINK_SPEED_1GB_FULL;
385 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
386 *speed = IXGBE_LINK_SPEED_10GB_FULL;
390 case IXGBE_AUTOC_LMS_1G_AN:
391 *speed = IXGBE_LINK_SPEED_1GB_FULL;
395 case IXGBE_AUTOC_LMS_10G_SERIAL:
396 *speed = IXGBE_LINK_SPEED_10GB_FULL;
400 case IXGBE_AUTOC_LMS_KX4_KX_KR:
401 case IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN:
402 *speed = IXGBE_LINK_SPEED_UNKNOWN;
403 if (autoc & IXGBE_AUTOC_KR_SUPP)
404 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
405 if (autoc & IXGBE_AUTOC_KX4_SUPP)
406 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
407 if (autoc & IXGBE_AUTOC_KX_SUPP)
408 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
412 case IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII:
413 *speed = IXGBE_LINK_SPEED_100_FULL;
414 if (autoc & IXGBE_AUTOC_KR_SUPP)
415 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
416 if (autoc & IXGBE_AUTOC_KX4_SUPP)
417 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
418 if (autoc & IXGBE_AUTOC_KX_SUPP)
419 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
423 case IXGBE_AUTOC_LMS_SGMII_1G_100M:
424 *speed = IXGBE_LINK_SPEED_1GB_FULL | IXGBE_LINK_SPEED_100_FULL;
429 return IXGBE_ERR_LINK_SETUP;
432 if (hw->phy.multispeed_fiber) {
433 *speed |= IXGBE_LINK_SPEED_10GB_FULL |
434 IXGBE_LINK_SPEED_1GB_FULL;
436 /* QSFP must not enable auto-negotiation */
437 if (hw->phy.media_type == ixgbe_media_type_fiber_qsfp)
447 * ixgbe_get_media_type_82599 - Get media type
448 * @hw: pointer to hardware structure
450 * Returns the media type (fiber, copper, backplane)
452 static enum ixgbe_media_type ixgbe_get_media_type_82599(struct ixgbe_hw *hw)
454 /* Detect if there is a copper PHY attached. */
455 switch (hw->phy.type) {
456 case ixgbe_phy_cu_unknown:
458 return ixgbe_media_type_copper;
464 switch (hw->device_id) {
465 case IXGBE_DEV_ID_82599_KX4:
466 case IXGBE_DEV_ID_82599_KX4_MEZZ:
467 case IXGBE_DEV_ID_82599_COMBO_BACKPLANE:
468 case IXGBE_DEV_ID_82599_KR:
469 case IXGBE_DEV_ID_82599_BACKPLANE_FCOE:
470 case IXGBE_DEV_ID_82599_XAUI_LOM:
471 /* Default device ID is mezzanine card KX/KX4 */
472 return ixgbe_media_type_backplane;
474 case IXGBE_DEV_ID_82599_SFP:
475 case IXGBE_DEV_ID_82599_SFP_FCOE:
476 case IXGBE_DEV_ID_82599_SFP_EM:
477 case IXGBE_DEV_ID_82599_SFP_SF2:
478 case IXGBE_DEV_ID_82599_SFP_SF_QP:
479 case IXGBE_DEV_ID_82599EN_SFP:
480 return ixgbe_media_type_fiber;
482 case IXGBE_DEV_ID_82599_CX4:
483 return ixgbe_media_type_cx4;
485 case IXGBE_DEV_ID_82599_T3_LOM:
486 return ixgbe_media_type_copper;
488 case IXGBE_DEV_ID_82599_LS:
489 return ixgbe_media_type_fiber_lco;
491 case IXGBE_DEV_ID_82599_QSFP_SF_QP:
492 return ixgbe_media_type_fiber_qsfp;
495 return ixgbe_media_type_unknown;
500 * ixgbe_stop_mac_link_on_d3_82599 - Disables link on D3
501 * @hw: pointer to hardware structure
503 * Disables link, should be called during D3 power down sequence.
506 static void ixgbe_stop_mac_link_on_d3_82599(struct ixgbe_hw *hw)
511 hw->eeprom.ops.read(hw, IXGBE_EEPROM_CTRL_2, &ee_ctrl_2);
513 if (!ixgbe_mng_present(hw) && !hw->wol_enabled &&
514 ee_ctrl_2 & IXGBE_EEPROM_CCD_BIT) {
515 autoc2_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
516 autoc2_reg |= IXGBE_AUTOC2_LINK_DISABLE_ON_D3_MASK;
517 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2_reg);
522 * ixgbe_start_mac_link_82599 - Setup MAC link settings
523 * @hw: pointer to hardware structure
524 * @autoneg_wait_to_complete: true when waiting for completion is needed
526 * Configures link settings based on values in the ixgbe_hw struct.
527 * Restarts the link. Performs autonegotiation if needed.
529 static s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw,
530 bool autoneg_wait_to_complete)
536 bool got_lock = false;
538 if (ixgbe_verify_lesm_fw_enabled_82599(hw)) {
539 status = hw->mac.ops.acquire_swfw_sync(hw,
540 IXGBE_GSSR_MAC_CSR_SM);
548 ixgbe_reset_pipeline_82599(hw);
551 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
553 /* Only poll for autoneg to complete if specified to do so */
554 if (autoneg_wait_to_complete) {
555 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
556 if ((autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
557 IXGBE_AUTOC_LMS_KX4_KX_KR ||
558 (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
559 IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
560 (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
561 IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
562 links_reg = 0; /* Just in case Autoneg time = 0 */
563 for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
564 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
565 if (links_reg & IXGBE_LINKS_KX_AN_COMP)
569 if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
570 status = IXGBE_ERR_AUTONEG_NOT_COMPLETE;
571 hw_dbg(hw, "Autoneg did not complete.\n");
576 /* Add delay to filter out noises during initial link setup */
583 * ixgbe_disable_tx_laser_multispeed_fiber - Disable Tx laser
584 * @hw: pointer to hardware structure
586 * The base drivers may require better control over SFP+ module
587 * PHY states. This includes selectively shutting down the Tx
588 * laser on the PHY, effectively halting physical link.
590 static void ixgbe_disable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
592 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
594 /* Blocked by MNG FW so bail */
595 if (ixgbe_check_reset_blocked(hw))
598 /* Disable tx laser; allow 100us to go dark per spec */
599 esdp_reg |= IXGBE_ESDP_SDP3;
600 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
601 IXGBE_WRITE_FLUSH(hw);
606 * ixgbe_enable_tx_laser_multispeed_fiber - Enable Tx laser
607 * @hw: pointer to hardware structure
609 * The base drivers may require better control over SFP+ module
610 * PHY states. This includes selectively turning on the Tx
611 * laser on the PHY, effectively starting physical link.
613 static void ixgbe_enable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
615 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
617 /* Enable tx laser; allow 100ms to light up */
618 esdp_reg &= ~IXGBE_ESDP_SDP3;
619 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
620 IXGBE_WRITE_FLUSH(hw);
625 * ixgbe_flap_tx_laser_multispeed_fiber - Flap Tx laser
626 * @hw: pointer to hardware structure
628 * When the driver changes the link speeds that it can support,
629 * it sets autotry_restart to true to indicate that we need to
630 * initiate a new autotry session with the link partner. To do
631 * so, we set the speed then disable and re-enable the tx laser, to
632 * alert the link partner that it also needs to restart autotry on its
633 * end. This is consistent with true clause 37 autoneg, which also
634 * involves a loss of signal.
636 static void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
638 /* Blocked by MNG FW so bail */
639 if (ixgbe_check_reset_blocked(hw))
642 if (hw->mac.autotry_restart) {
643 ixgbe_disable_tx_laser_multispeed_fiber(hw);
644 ixgbe_enable_tx_laser_multispeed_fiber(hw);
645 hw->mac.autotry_restart = false;
650 * ixgbe_set_hard_rate_select_speed - Set module link speed
651 * @hw: pointer to hardware structure
652 * @speed: link speed to set
654 * Set module link speed via RS0/RS1 rate select pins.
657 ixgbe_set_hard_rate_select_speed(struct ixgbe_hw *hw, ixgbe_link_speed speed)
659 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
662 case IXGBE_LINK_SPEED_10GB_FULL:
663 esdp_reg |= (IXGBE_ESDP_SDP5_DIR | IXGBE_ESDP_SDP5);
665 case IXGBE_LINK_SPEED_1GB_FULL:
666 esdp_reg &= ~IXGBE_ESDP_SDP5;
667 esdp_reg |= IXGBE_ESDP_SDP5_DIR;
670 hw_dbg(hw, "Invalid fixed module speed\n");
674 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
675 IXGBE_WRITE_FLUSH(hw);
679 * ixgbe_setup_mac_link_smartspeed - Set MAC link speed using SmartSpeed
680 * @hw: pointer to hardware structure
681 * @speed: new link speed
682 * @autoneg_wait_to_complete: true when waiting for completion is needed
684 * Implements the Intel SmartSpeed algorithm.
686 static s32 ixgbe_setup_mac_link_smartspeed(struct ixgbe_hw *hw,
687 ixgbe_link_speed speed,
688 bool autoneg_wait_to_complete)
691 ixgbe_link_speed link_speed = IXGBE_LINK_SPEED_UNKNOWN;
693 bool link_up = false;
694 u32 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
696 /* Set autoneg_advertised value based on input link speed */
697 hw->phy.autoneg_advertised = 0;
699 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
700 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_10GB_FULL;
702 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
703 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_1GB_FULL;
705 if (speed & IXGBE_LINK_SPEED_100_FULL)
706 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_100_FULL;
709 * Implement Intel SmartSpeed algorithm. SmartSpeed will reduce the
710 * autoneg advertisement if link is unable to be established at the
711 * highest negotiated rate. This can sometimes happen due to integrity
712 * issues with the physical media connection.
715 /* First, try to get link with full advertisement */
716 hw->phy.smart_speed_active = false;
717 for (j = 0; j < IXGBE_SMARTSPEED_MAX_RETRIES; j++) {
718 status = ixgbe_setup_mac_link_82599(hw, speed,
719 autoneg_wait_to_complete);
724 * Wait for the controller to acquire link. Per IEEE 802.3ap,
725 * Section 73.10.2, we may have to wait up to 500ms if KR is
726 * attempted, or 200ms if KX/KX4/BX/BX4 is attempted, per
727 * Table 9 in the AN MAS.
729 for (i = 0; i < 5; i++) {
732 /* If we have link, just jump out */
733 status = hw->mac.ops.check_link(hw, &link_speed,
744 * We didn't get link. If we advertised KR plus one of KX4/KX
745 * (or BX4/BX), then disable KR and try again.
747 if (((autoc_reg & IXGBE_AUTOC_KR_SUPP) == 0) ||
748 ((autoc_reg & IXGBE_AUTOC_KX4_KX_SUPP_MASK) == 0))
751 /* Turn SmartSpeed on to disable KR support */
752 hw->phy.smart_speed_active = true;
753 status = ixgbe_setup_mac_link_82599(hw, speed,
754 autoneg_wait_to_complete);
759 * Wait for the controller to acquire link. 600ms will allow for
760 * the AN link_fail_inhibit_timer as well for multiple cycles of
761 * parallel detect, both 10g and 1g. This allows for the maximum
762 * connect attempts as defined in the AN MAS table 73-7.
764 for (i = 0; i < 6; i++) {
767 /* If we have link, just jump out */
768 status = hw->mac.ops.check_link(hw, &link_speed,
777 /* We didn't get link. Turn SmartSpeed back off. */
778 hw->phy.smart_speed_active = false;
779 status = ixgbe_setup_mac_link_82599(hw, speed,
780 autoneg_wait_to_complete);
783 if (link_up && (link_speed == IXGBE_LINK_SPEED_1GB_FULL))
784 hw_dbg(hw, "Smartspeed has downgraded the link speed from the maximum advertised\n");
789 * ixgbe_setup_mac_link_82599 - Set MAC link speed
790 * @hw: pointer to hardware structure
791 * @speed: new link speed
792 * @autoneg_wait_to_complete: true when waiting for completion is needed
794 * Set the link speed in the AUTOC register and restarts link.
796 static s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw,
797 ixgbe_link_speed speed,
798 bool autoneg_wait_to_complete)
800 bool autoneg = false;
802 u32 pma_pmd_1g, link_mode, links_reg, i;
803 u32 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
804 u32 pma_pmd_10g_serial = autoc2 & IXGBE_AUTOC2_10G_SERIAL_PMA_PMD_MASK;
805 ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN;
807 /* holds the value of AUTOC register at this current point in time */
808 u32 current_autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
809 /* holds the cached value of AUTOC register */
811 /* temporary variable used for comparison purposes */
812 u32 autoc = current_autoc;
814 /* Check to see if speed passed in is supported. */
815 status = hw->mac.ops.get_link_capabilities(hw, &link_capabilities,
820 speed &= link_capabilities;
822 if (speed == IXGBE_LINK_SPEED_UNKNOWN)
823 return IXGBE_ERR_LINK_SETUP;
825 /* Use stored value (EEPROM defaults) of AUTOC to find KR/KX4 support*/
826 if (hw->mac.orig_link_settings_stored)
827 orig_autoc = hw->mac.orig_autoc;
831 link_mode = autoc & IXGBE_AUTOC_LMS_MASK;
832 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;
834 if (link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR ||
835 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
836 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
837 /* Set KX4/KX/KR support according to speed requested */
838 autoc &= ~(IXGBE_AUTOC_KX4_KX_SUPP_MASK | IXGBE_AUTOC_KR_SUPP);
839 if (speed & IXGBE_LINK_SPEED_10GB_FULL) {
840 if (orig_autoc & IXGBE_AUTOC_KX4_SUPP)
841 autoc |= IXGBE_AUTOC_KX4_SUPP;
842 if ((orig_autoc & IXGBE_AUTOC_KR_SUPP) &&
843 (hw->phy.smart_speed_active == false))
844 autoc |= IXGBE_AUTOC_KR_SUPP;
846 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
847 autoc |= IXGBE_AUTOC_KX_SUPP;
848 } else if ((pma_pmd_1g == IXGBE_AUTOC_1G_SFI) &&
849 (link_mode == IXGBE_AUTOC_LMS_1G_LINK_NO_AN ||
850 link_mode == IXGBE_AUTOC_LMS_1G_AN)) {
851 /* Switch from 1G SFI to 10G SFI if requested */
852 if ((speed == IXGBE_LINK_SPEED_10GB_FULL) &&
853 (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI)) {
854 autoc &= ~IXGBE_AUTOC_LMS_MASK;
855 autoc |= IXGBE_AUTOC_LMS_10G_SERIAL;
857 } else if ((pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI) &&
858 (link_mode == IXGBE_AUTOC_LMS_10G_SERIAL)) {
859 /* Switch from 10G SFI to 1G SFI if requested */
860 if ((speed == IXGBE_LINK_SPEED_1GB_FULL) &&
861 (pma_pmd_1g == IXGBE_AUTOC_1G_SFI)) {
862 autoc &= ~IXGBE_AUTOC_LMS_MASK;
864 autoc |= IXGBE_AUTOC_LMS_1G_AN;
866 autoc |= IXGBE_AUTOC_LMS_1G_LINK_NO_AN;
870 if (autoc != current_autoc) {
872 status = hw->mac.ops.prot_autoc_write(hw, autoc, false);
876 /* Only poll for autoneg to complete if specified to do so */
877 if (autoneg_wait_to_complete) {
878 if (link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR ||
879 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
880 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
881 links_reg = 0; /*Just in case Autoneg time=0*/
882 for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
884 IXGBE_READ_REG(hw, IXGBE_LINKS);
885 if (links_reg & IXGBE_LINKS_KX_AN_COMP)
889 if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
891 IXGBE_ERR_AUTONEG_NOT_COMPLETE;
892 hw_dbg(hw, "Autoneg did not complete.\n");
897 /* Add delay to filter out noises during initial link setup */
905 * ixgbe_setup_copper_link_82599 - Set the PHY autoneg advertised field
906 * @hw: pointer to hardware structure
907 * @speed: new link speed
908 * @autoneg_wait_to_complete: true if waiting is needed to complete
910 * Restarts link on PHY and MAC based on settings passed in.
912 static s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw,
913 ixgbe_link_speed speed,
914 bool autoneg_wait_to_complete)
918 /* Setup the PHY according to input speed */
919 status = hw->phy.ops.setup_link_speed(hw, speed,
920 autoneg_wait_to_complete);
922 ixgbe_start_mac_link_82599(hw, autoneg_wait_to_complete);
928 * ixgbe_reset_hw_82599 - Perform hardware reset
929 * @hw: pointer to hardware structure
931 * Resets the hardware by resetting the transmit and receive units, masks
932 * and clears all interrupts, perform a PHY reset, and perform a link (MAC)
935 static s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw)
937 ixgbe_link_speed link_speed;
939 u32 ctrl, i, autoc, autoc2;
941 bool link_up = false;
943 /* Call adapter stop to disable tx/rx and clear interrupts */
944 status = hw->mac.ops.stop_adapter(hw);
948 /* flush pending Tx transactions */
949 ixgbe_clear_tx_pending(hw);
951 /* PHY ops must be identified and initialized prior to reset */
953 /* Identify PHY and related function pointers */
954 status = hw->phy.ops.init(hw);
956 if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
959 /* Setup SFP module if there is one present. */
960 if (hw->phy.sfp_setup_needed) {
961 status = hw->mac.ops.setup_sfp(hw);
962 hw->phy.sfp_setup_needed = false;
965 if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
969 if (hw->phy.reset_disable == false && hw->phy.ops.reset != NULL)
970 hw->phy.ops.reset(hw);
972 /* remember AUTOC from before we reset */
973 curr_lms = IXGBE_READ_REG(hw, IXGBE_AUTOC) & IXGBE_AUTOC_LMS_MASK;
977 * Issue global reset to the MAC. Needs to be SW reset if link is up.
978 * If link reset is used when link is up, it might reset the PHY when
979 * mng is using it. If link is down or the flag to force full link
980 * reset is set, then perform link reset.
982 ctrl = IXGBE_CTRL_LNK_RST;
983 if (!hw->force_full_reset) {
984 hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
986 ctrl = IXGBE_CTRL_RST;
989 ctrl |= IXGBE_READ_REG(hw, IXGBE_CTRL);
990 IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
991 IXGBE_WRITE_FLUSH(hw);
992 usleep_range(1000, 1200);
994 /* Poll for reset bit to self-clear indicating reset is complete */
995 for (i = 0; i < 10; i++) {
996 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
997 if (!(ctrl & IXGBE_CTRL_RST_MASK))
1002 if (ctrl & IXGBE_CTRL_RST_MASK) {
1003 status = IXGBE_ERR_RESET_FAILED;
1004 hw_dbg(hw, "Reset polling failed to complete.\n");
1010 * Double resets are required for recovery from certain error
1011 * conditions. Between resets, it is necessary to stall to allow time
1012 * for any pending HW events to complete.
1014 if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
1015 hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
1020 * Store the original AUTOC/AUTOC2 values if they have not been
1021 * stored off yet. Otherwise restore the stored original
1022 * values since the reset operation sets back to defaults.
1024 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
1025 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
1027 /* Enable link if disabled in NVM */
1028 if (autoc2 & IXGBE_AUTOC2_LINK_DISABLE_MASK) {
1029 autoc2 &= ~IXGBE_AUTOC2_LINK_DISABLE_MASK;
1030 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2);
1031 IXGBE_WRITE_FLUSH(hw);
1034 if (hw->mac.orig_link_settings_stored == false) {
1035 hw->mac.orig_autoc = autoc;
1036 hw->mac.orig_autoc2 = autoc2;
1037 hw->mac.orig_link_settings_stored = true;
1040 /* If MNG FW is running on a multi-speed device that
1041 * doesn't autoneg with out driver support we need to
1042 * leave LMS in the state it was before we MAC reset.
1043 * Likewise if we support WoL we don't want change the
1046 if ((hw->phy.multispeed_fiber && ixgbe_mng_enabled(hw)) ||
1048 hw->mac.orig_autoc =
1049 (hw->mac.orig_autoc & ~IXGBE_AUTOC_LMS_MASK) |
1052 if (autoc != hw->mac.orig_autoc) {
1053 status = hw->mac.ops.prot_autoc_write(hw,
1060 if ((autoc2 & IXGBE_AUTOC2_UPPER_MASK) !=
1061 (hw->mac.orig_autoc2 & IXGBE_AUTOC2_UPPER_MASK)) {
1062 autoc2 &= ~IXGBE_AUTOC2_UPPER_MASK;
1063 autoc2 |= (hw->mac.orig_autoc2 &
1064 IXGBE_AUTOC2_UPPER_MASK);
1065 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2);
1069 /* Store the permanent mac address */
1070 hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
1073 * Store MAC address from RAR0, clear receive address registers, and
1074 * clear the multicast table. Also reset num_rar_entries to 128,
1075 * since we modify this value when programming the SAN MAC address.
1077 hw->mac.num_rar_entries = 128;
1078 hw->mac.ops.init_rx_addrs(hw);
1080 /* Store the permanent SAN mac address */
1081 hw->mac.ops.get_san_mac_addr(hw, hw->mac.san_addr);
1083 /* Add the SAN MAC address to the RAR only if it's a valid address */
1084 if (is_valid_ether_addr(hw->mac.san_addr)) {
1085 /* Save the SAN MAC RAR index */
1086 hw->mac.san_mac_rar_index = hw->mac.num_rar_entries - 1;
1088 hw->mac.ops.set_rar(hw, hw->mac.san_mac_rar_index,
1089 hw->mac.san_addr, 0, IXGBE_RAH_AV);
1091 /* clear VMDq pool/queue selection for this RAR */
1092 hw->mac.ops.clear_vmdq(hw, hw->mac.san_mac_rar_index,
1093 IXGBE_CLEAR_VMDQ_ALL);
1095 /* Reserve the last RAR for the SAN MAC address */
1096 hw->mac.num_rar_entries--;
1099 /* Store the alternative WWNN/WWPN prefix */
1100 hw->mac.ops.get_wwn_prefix(hw, &hw->mac.wwnn_prefix,
1101 &hw->mac.wwpn_prefix);
1107 * ixgbe_fdir_check_cmd_complete - poll to check whether FDIRCMD is complete
1108 * @hw: pointer to hardware structure
1109 * @fdircmd: current value of FDIRCMD register
1111 static s32 ixgbe_fdir_check_cmd_complete(struct ixgbe_hw *hw, u32 *fdircmd)
1115 for (i = 0; i < IXGBE_FDIRCMD_CMD_POLL; i++) {
1116 *fdircmd = IXGBE_READ_REG(hw, IXGBE_FDIRCMD);
1117 if (!(*fdircmd & IXGBE_FDIRCMD_CMD_MASK))
1122 return IXGBE_ERR_FDIR_CMD_INCOMPLETE;
1126 * ixgbe_reinit_fdir_tables_82599 - Reinitialize Flow Director tables.
1127 * @hw: pointer to hardware structure
1129 s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw)
1132 u32 fdirctrl = IXGBE_READ_REG(hw, IXGBE_FDIRCTRL);
1136 fdirctrl &= ~IXGBE_FDIRCTRL_INIT_DONE;
1139 * Before starting reinitialization process,
1140 * FDIRCMD.CMD must be zero.
1142 err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
1144 hw_dbg(hw, "Flow Director previous command did not complete, aborting table re-initialization.\n");
1148 IXGBE_WRITE_REG(hw, IXGBE_FDIRFREE, 0);
1149 IXGBE_WRITE_FLUSH(hw);
1151 * 82599 adapters flow director init flow cannot be restarted,
1152 * Workaround 82599 silicon errata by performing the following steps
1153 * before re-writing the FDIRCTRL control register with the same value.
1154 * - write 1 to bit 8 of FDIRCMD register &
1155 * - write 0 to bit 8 of FDIRCMD register
1157 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1158 (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) |
1159 IXGBE_FDIRCMD_CLEARHT));
1160 IXGBE_WRITE_FLUSH(hw);
1161 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1162 (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) &
1163 ~IXGBE_FDIRCMD_CLEARHT));
1164 IXGBE_WRITE_FLUSH(hw);
1166 * Clear FDIR Hash register to clear any leftover hashes
1167 * waiting to be programmed.
1169 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, 0x00);
1170 IXGBE_WRITE_FLUSH(hw);
1172 IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
1173 IXGBE_WRITE_FLUSH(hw);
1175 /* Poll init-done after we write FDIRCTRL register */
1176 for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
1177 if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) &
1178 IXGBE_FDIRCTRL_INIT_DONE)
1180 usleep_range(1000, 2000);
1182 if (i >= IXGBE_FDIR_INIT_DONE_POLL) {
1183 hw_dbg(hw, "Flow Director Signature poll time exceeded!\n");
1184 return IXGBE_ERR_FDIR_REINIT_FAILED;
1187 /* Clear FDIR statistics registers (read to clear) */
1188 IXGBE_READ_REG(hw, IXGBE_FDIRUSTAT);
1189 IXGBE_READ_REG(hw, IXGBE_FDIRFSTAT);
1190 IXGBE_READ_REG(hw, IXGBE_FDIRMATCH);
1191 IXGBE_READ_REG(hw, IXGBE_FDIRMISS);
1192 IXGBE_READ_REG(hw, IXGBE_FDIRLEN);
1198 * ixgbe_fdir_enable_82599 - Initialize Flow Director control registers
1199 * @hw: pointer to hardware structure
1200 * @fdirctrl: value to write to flow director control register
1202 static void ixgbe_fdir_enable_82599(struct ixgbe_hw *hw, u32 fdirctrl)
1206 /* Prime the keys for hashing */
1207 IXGBE_WRITE_REG(hw, IXGBE_FDIRHKEY, IXGBE_ATR_BUCKET_HASH_KEY);
1208 IXGBE_WRITE_REG(hw, IXGBE_FDIRSKEY, IXGBE_ATR_SIGNATURE_HASH_KEY);
1211 * Poll init-done after we write the register. Estimated times:
1212 * 10G: PBALLOC = 11b, timing is 60us
1213 * 1G: PBALLOC = 11b, timing is 600us
1214 * 100M: PBALLOC = 11b, timing is 6ms
1216 * Multiple these timings by 4 if under full Rx load
1218 * So we'll poll for IXGBE_FDIR_INIT_DONE_POLL times, sleeping for
1219 * 1 msec per poll time. If we're at line rate and drop to 100M, then
1220 * this might not finish in our poll time, but we can live with that
1223 IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
1224 IXGBE_WRITE_FLUSH(hw);
1225 for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
1226 if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) &
1227 IXGBE_FDIRCTRL_INIT_DONE)
1229 usleep_range(1000, 2000);
1232 if (i >= IXGBE_FDIR_INIT_DONE_POLL)
1233 hw_dbg(hw, "Flow Director poll time exceeded!\n");
1237 * ixgbe_init_fdir_signature_82599 - Initialize Flow Director signature filters
1238 * @hw: pointer to hardware structure
1239 * @fdirctrl: value to write to flow director control register, initially
1240 * contains just the value of the Rx packet buffer allocation
1242 s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 fdirctrl)
1245 * Continue setup of fdirctrl register bits:
1246 * Move the flexible bytes to use the ethertype - shift 6 words
1247 * Set the maximum length per hash bucket to 0xA filters
1248 * Send interrupt when 64 filters are left
1250 fdirctrl |= (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT) |
1251 (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT) |
1252 (4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT);
1254 /* write hashes and fdirctrl register, poll for completion */
1255 ixgbe_fdir_enable_82599(hw, fdirctrl);
1261 * ixgbe_init_fdir_perfect_82599 - Initialize Flow Director perfect filters
1262 * @hw: pointer to hardware structure
1263 * @fdirctrl: value to write to flow director control register, initially
1264 * contains just the value of the Rx packet buffer allocation
1266 s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 fdirctrl)
1269 * Continue setup of fdirctrl register bits:
1270 * Turn perfect match filtering on
1271 * Initialize the drop queue
1272 * Move the flexible bytes to use the ethertype - shift 6 words
1273 * Set the maximum length per hash bucket to 0xA filters
1274 * Send interrupt when 64 (0x4 * 16) filters are left
1276 fdirctrl |= IXGBE_FDIRCTRL_PERFECT_MATCH |
1277 (IXGBE_FDIR_DROP_QUEUE << IXGBE_FDIRCTRL_DROP_Q_SHIFT) |
1278 (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT) |
1279 (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT) |
1280 (4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT);
1282 /* write hashes and fdirctrl register, poll for completion */
1283 ixgbe_fdir_enable_82599(hw, fdirctrl);
1289 * These defines allow us to quickly generate all of the necessary instructions
1290 * in the function below by simply calling out IXGBE_COMPUTE_SIG_HASH_ITERATION
1291 * for values 0 through 15
1293 #define IXGBE_ATR_COMMON_HASH_KEY \
1294 (IXGBE_ATR_BUCKET_HASH_KEY & IXGBE_ATR_SIGNATURE_HASH_KEY)
1295 #define IXGBE_COMPUTE_SIG_HASH_ITERATION(_n) \
1298 if (IXGBE_ATR_COMMON_HASH_KEY & BIT(n)) \
1299 common_hash ^= lo_hash_dword >> n; \
1300 else if (IXGBE_ATR_BUCKET_HASH_KEY & BIT(n)) \
1301 bucket_hash ^= lo_hash_dword >> n; \
1302 else if (IXGBE_ATR_SIGNATURE_HASH_KEY & BIT(n)) \
1303 sig_hash ^= lo_hash_dword << (16 - n); \
1304 if (IXGBE_ATR_COMMON_HASH_KEY & BIT(n + 16)) \
1305 common_hash ^= hi_hash_dword >> n; \
1306 else if (IXGBE_ATR_BUCKET_HASH_KEY & BIT(n + 16)) \
1307 bucket_hash ^= hi_hash_dword >> n; \
1308 else if (IXGBE_ATR_SIGNATURE_HASH_KEY & BIT(n + 16)) \
1309 sig_hash ^= hi_hash_dword << (16 - n); \
1313 * ixgbe_atr_compute_sig_hash_82599 - Compute the signature hash
1314 * @input: input bitstream to compute the hash on
1315 * @common: compressed common input dword
1317 * This function is almost identical to the function above but contains
1318 * several optimizations such as unwinding all of the loops, letting the
1319 * compiler work out all of the conditional ifs since the keys are static
1320 * defines, and computing two keys at once since the hashed dword stream
1321 * will be the same for both keys.
1323 static u32 ixgbe_atr_compute_sig_hash_82599(union ixgbe_atr_hash_dword input,
1324 union ixgbe_atr_hash_dword common)
1326 u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
1327 u32 sig_hash = 0, bucket_hash = 0, common_hash = 0;
1329 /* record the flow_vm_vlan bits as they are a key part to the hash */
1330 flow_vm_vlan = ntohl(input.dword);
1332 /* generate common hash dword */
1333 hi_hash_dword = ntohl(common.dword);
1335 /* low dword is word swapped version of common */
1336 lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
1338 /* apply flow ID/VM pool/VLAN ID bits to hash words */
1339 hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);
1341 /* Process bits 0 and 16 */
1342 IXGBE_COMPUTE_SIG_HASH_ITERATION(0);
1345 * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
1346 * delay this because bit 0 of the stream should not be processed
1347 * so we do not add the vlan until after bit 0 was processed
1349 lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);
1351 /* Process remaining 30 bit of the key */
1352 IXGBE_COMPUTE_SIG_HASH_ITERATION(1);
1353 IXGBE_COMPUTE_SIG_HASH_ITERATION(2);
1354 IXGBE_COMPUTE_SIG_HASH_ITERATION(3);
1355 IXGBE_COMPUTE_SIG_HASH_ITERATION(4);
1356 IXGBE_COMPUTE_SIG_HASH_ITERATION(5);
1357 IXGBE_COMPUTE_SIG_HASH_ITERATION(6);
1358 IXGBE_COMPUTE_SIG_HASH_ITERATION(7);
1359 IXGBE_COMPUTE_SIG_HASH_ITERATION(8);
1360 IXGBE_COMPUTE_SIG_HASH_ITERATION(9);
1361 IXGBE_COMPUTE_SIG_HASH_ITERATION(10);
1362 IXGBE_COMPUTE_SIG_HASH_ITERATION(11);
1363 IXGBE_COMPUTE_SIG_HASH_ITERATION(12);
1364 IXGBE_COMPUTE_SIG_HASH_ITERATION(13);
1365 IXGBE_COMPUTE_SIG_HASH_ITERATION(14);
1366 IXGBE_COMPUTE_SIG_HASH_ITERATION(15);
1368 /* combine common_hash result with signature and bucket hashes */
1369 bucket_hash ^= common_hash;
1370 bucket_hash &= IXGBE_ATR_HASH_MASK;
1372 sig_hash ^= common_hash << 16;
1373 sig_hash &= IXGBE_ATR_HASH_MASK << 16;
1375 /* return completed signature hash */
1376 return sig_hash ^ bucket_hash;
1380 * ixgbe_atr_add_signature_filter_82599 - Adds a signature hash filter
1381 * @hw: pointer to hardware structure
1382 * @input: unique input dword
1383 * @common: compressed common input dword
1384 * @queue: queue index to direct traffic to
1386 * Note that the tunnel bit in input must not be set when the hardware
1387 * tunneling support does not exist.
1389 s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
1390 union ixgbe_atr_hash_dword input,
1391 union ixgbe_atr_hash_dword common,
1400 * Get the flow_type in order to program FDIRCMD properly
1401 * lowest 2 bits are FDIRCMD.L4TYPE, third lowest bit is FDIRCMD.IPV6
1403 tunnel = !!(input.formatted.flow_type & IXGBE_ATR_L4TYPE_TUNNEL_MASK);
1404 flow_type = input.formatted.flow_type &
1405 (IXGBE_ATR_L4TYPE_TUNNEL_MASK - 1);
1406 switch (flow_type) {
1407 case IXGBE_ATR_FLOW_TYPE_TCPV4:
1408 case IXGBE_ATR_FLOW_TYPE_UDPV4:
1409 case IXGBE_ATR_FLOW_TYPE_SCTPV4:
1410 case IXGBE_ATR_FLOW_TYPE_TCPV6:
1411 case IXGBE_ATR_FLOW_TYPE_UDPV6:
1412 case IXGBE_ATR_FLOW_TYPE_SCTPV6:
1415 hw_dbg(hw, " Error on flow type input\n");
1416 return IXGBE_ERR_CONFIG;
1419 /* configure FDIRCMD register */
1420 fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE |
1421 IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
1422 fdircmd |= (u32)flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
1423 fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
1425 fdircmd |= IXGBE_FDIRCMD_TUNNEL_FILTER;
1428 * The lower 32-bits of fdirhashcmd is for FDIRHASH, the upper 32-bits
1429 * is for FDIRCMD. Then do a 64-bit register write from FDIRHASH.
1431 fdirhashcmd = (u64)fdircmd << 32;
1432 fdirhashcmd |= ixgbe_atr_compute_sig_hash_82599(input, common);
1433 IXGBE_WRITE_REG64(hw, IXGBE_FDIRHASH, fdirhashcmd);
1435 hw_dbg(hw, "Tx Queue=%x hash=%x\n", queue, (u32)fdirhashcmd);
1440 #define IXGBE_COMPUTE_BKT_HASH_ITERATION(_n) \
1443 if (IXGBE_ATR_BUCKET_HASH_KEY & BIT(n)) \
1444 bucket_hash ^= lo_hash_dword >> n; \
1445 if (IXGBE_ATR_BUCKET_HASH_KEY & BIT(n + 16)) \
1446 bucket_hash ^= hi_hash_dword >> n; \
1450 * ixgbe_atr_compute_perfect_hash_82599 - Compute the perfect filter hash
1451 * @input: input bitstream to compute the hash on
1452 * @input_mask: mask for the input bitstream
1454 * This function serves two main purposes. First it applies the input_mask
1455 * to the atr_input resulting in a cleaned up atr_input data stream.
1456 * Secondly it computes the hash and stores it in the bkt_hash field at
1457 * the end of the input byte stream. This way it will be available for
1458 * future use without needing to recompute the hash.
1460 void ixgbe_atr_compute_perfect_hash_82599(union ixgbe_atr_input *input,
1461 union ixgbe_atr_input *input_mask)
1464 u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
1465 u32 bucket_hash = 0, hi_dword = 0;
1468 /* Apply masks to input data */
1469 for (i = 0; i <= 10; i++)
1470 input->dword_stream[i] &= input_mask->dword_stream[i];
1472 /* record the flow_vm_vlan bits as they are a key part to the hash */
1473 flow_vm_vlan = ntohl(input->dword_stream[0]);
1475 /* generate common hash dword */
1476 for (i = 1; i <= 10; i++)
1477 hi_dword ^= input->dword_stream[i];
1478 hi_hash_dword = ntohl(hi_dword);
1480 /* low dword is word swapped version of common */
1481 lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
1483 /* apply flow ID/VM pool/VLAN ID bits to hash words */
1484 hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);
1486 /* Process bits 0 and 16 */
1487 IXGBE_COMPUTE_BKT_HASH_ITERATION(0);
1490 * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
1491 * delay this because bit 0 of the stream should not be processed
1492 * so we do not add the vlan until after bit 0 was processed
1494 lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);
1496 /* Process remaining 30 bit of the key */
1497 for (i = 1; i <= 15; i++)
1498 IXGBE_COMPUTE_BKT_HASH_ITERATION(i);
1501 * Limit hash to 13 bits since max bucket count is 8K.
1502 * Store result at the end of the input stream.
1504 input->formatted.bkt_hash = bucket_hash & 0x1FFF;
1508 * ixgbe_get_fdirtcpm_82599 - generate a tcp port from atr_input_masks
1509 * @input_mask: mask to be bit swapped
1511 * The source and destination port masks for flow director are bit swapped
1512 * in that bit 15 effects bit 0, 14 effects 1, 13, 2 etc. In order to
1513 * generate a correctly swapped value we need to bit swap the mask and that
1514 * is what is accomplished by this function.
1516 static u32 ixgbe_get_fdirtcpm_82599(union ixgbe_atr_input *input_mask)
1518 u32 mask = ntohs(input_mask->formatted.dst_port);
1520 mask <<= IXGBE_FDIRTCPM_DPORTM_SHIFT;
1521 mask |= ntohs(input_mask->formatted.src_port);
1522 mask = ((mask & 0x55555555) << 1) | ((mask & 0xAAAAAAAA) >> 1);
1523 mask = ((mask & 0x33333333) << 2) | ((mask & 0xCCCCCCCC) >> 2);
1524 mask = ((mask & 0x0F0F0F0F) << 4) | ((mask & 0xF0F0F0F0) >> 4);
1525 return ((mask & 0x00FF00FF) << 8) | ((mask & 0xFF00FF00) >> 8);
1529 * These two macros are meant to address the fact that we have registers
1530 * that are either all or in part big-endian. As a result on big-endian
1531 * systems we will end up byte swapping the value to little-endian before
1532 * it is byte swapped again and written to the hardware in the original
1533 * big-endian format.
1535 #define IXGBE_STORE_AS_BE32(_value) \
1536 (((u32)(_value) >> 24) | (((u32)(_value) & 0x00FF0000) >> 8) | \
1537 (((u32)(_value) & 0x0000FF00) << 8) | ((u32)(_value) << 24))
1539 #define IXGBE_WRITE_REG_BE32(a, reg, value) \
1540 IXGBE_WRITE_REG((a), (reg), IXGBE_STORE_AS_BE32(ntohl(value)))
1542 #define IXGBE_STORE_AS_BE16(_value) \
1543 ntohs(((u16)(_value) >> 8) | ((u16)(_value) << 8))
1545 s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
1546 union ixgbe_atr_input *input_mask)
1548 /* mask IPv6 since it is currently not supported */
1549 u32 fdirm = IXGBE_FDIRM_DIPv6;
1553 * Program the relevant mask registers. If src/dst_port or src/dst_addr
1554 * are zero, then assume a full mask for that field. Also assume that
1555 * a VLAN of 0 is unspecified, so mask that out as well. L4type
1556 * cannot be masked out in this implementation.
1558 * This also assumes IPv4 only. IPv6 masking isn't supported at this
1562 /* verify bucket hash is cleared on hash generation */
1563 if (input_mask->formatted.bkt_hash)
1564 hw_dbg(hw, " bucket hash should always be 0 in mask\n");
1566 /* Program FDIRM and verify partial masks */
1567 switch (input_mask->formatted.vm_pool & 0x7F) {
1569 fdirm |= IXGBE_FDIRM_POOL;
1573 hw_dbg(hw, " Error on vm pool mask\n");
1574 return IXGBE_ERR_CONFIG;
1577 switch (input_mask->formatted.flow_type & IXGBE_ATR_L4TYPE_MASK) {
1579 fdirm |= IXGBE_FDIRM_L4P;
1580 if (input_mask->formatted.dst_port ||
1581 input_mask->formatted.src_port) {
1582 hw_dbg(hw, " Error on src/dst port mask\n");
1583 return IXGBE_ERR_CONFIG;
1585 case IXGBE_ATR_L4TYPE_MASK:
1588 hw_dbg(hw, " Error on flow type mask\n");
1589 return IXGBE_ERR_CONFIG;
1592 switch (ntohs(input_mask->formatted.vlan_id) & 0xEFFF) {
1595 fdirm |= IXGBE_FDIRM_VLANID;
1598 /* mask VLAN priority */
1599 fdirm |= IXGBE_FDIRM_VLANP;
1602 /* mask VLAN ID only */
1603 fdirm |= IXGBE_FDIRM_VLANID;
1606 /* no VLAN fields masked */
1609 hw_dbg(hw, " Error on VLAN mask\n");
1610 return IXGBE_ERR_CONFIG;
1613 switch (input_mask->formatted.flex_bytes & 0xFFFF) {
1615 /* Mask Flex Bytes */
1616 fdirm |= IXGBE_FDIRM_FLEX;
1621 hw_dbg(hw, " Error on flexible byte mask\n");
1622 return IXGBE_ERR_CONFIG;
1625 /* Now mask VM pool and destination IPv6 - bits 5 and 2 */
1626 IXGBE_WRITE_REG(hw, IXGBE_FDIRM, fdirm);
1628 /* store the TCP/UDP port masks, bit reversed from port layout */
1629 fdirtcpm = ixgbe_get_fdirtcpm_82599(input_mask);
1631 /* write both the same so that UDP and TCP use the same mask */
1632 IXGBE_WRITE_REG(hw, IXGBE_FDIRTCPM, ~fdirtcpm);
1633 IXGBE_WRITE_REG(hw, IXGBE_FDIRUDPM, ~fdirtcpm);
1635 /* also use it for SCTP */
1636 switch (hw->mac.type) {
1637 case ixgbe_mac_X550:
1638 case ixgbe_mac_X550EM_x:
1639 case ixgbe_mac_x550em_a:
1640 IXGBE_WRITE_REG(hw, IXGBE_FDIRSCTPM, ~fdirtcpm);
1646 /* store source and destination IP masks (big-enian) */
1647 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIP4M,
1648 ~input_mask->formatted.src_ip[0]);
1649 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRDIP4M,
1650 ~input_mask->formatted.dst_ip[0]);
1655 s32 ixgbe_fdir_write_perfect_filter_82599(struct ixgbe_hw *hw,
1656 union ixgbe_atr_input *input,
1657 u16 soft_id, u8 queue)
1659 u32 fdirport, fdirvlan, fdirhash, fdircmd;
1662 /* currently IPv6 is not supported, must be programmed with 0 */
1663 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(0),
1664 input->formatted.src_ip[0]);
1665 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(1),
1666 input->formatted.src_ip[1]);
1667 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(2),
1668 input->formatted.src_ip[2]);
1670 /* record the source address (big-endian) */
1671 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPSA, input->formatted.src_ip[0]);
1673 /* record the first 32 bits of the destination address (big-endian) */
1674 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPDA, input->formatted.dst_ip[0]);
1676 /* record source and destination port (little-endian)*/
1677 fdirport = ntohs(input->formatted.dst_port);
1678 fdirport <<= IXGBE_FDIRPORT_DESTINATION_SHIFT;
1679 fdirport |= ntohs(input->formatted.src_port);
1680 IXGBE_WRITE_REG(hw, IXGBE_FDIRPORT, fdirport);
1682 /* record vlan (little-endian) and flex_bytes(big-endian) */
1683 fdirvlan = IXGBE_STORE_AS_BE16(input->formatted.flex_bytes);
1684 fdirvlan <<= IXGBE_FDIRVLAN_FLEX_SHIFT;
1685 fdirvlan |= ntohs(input->formatted.vlan_id);
1686 IXGBE_WRITE_REG(hw, IXGBE_FDIRVLAN, fdirvlan);
1688 /* configure FDIRHASH register */
1689 fdirhash = input->formatted.bkt_hash;
1690 fdirhash |= soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT;
1691 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
1694 * flush all previous writes to make certain registers are
1695 * programmed prior to issuing the command
1697 IXGBE_WRITE_FLUSH(hw);
1699 /* configure FDIRCMD register */
1700 fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE |
1701 IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
1702 if (queue == IXGBE_FDIR_DROP_QUEUE)
1703 fdircmd |= IXGBE_FDIRCMD_DROP;
1704 fdircmd |= input->formatted.flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
1705 fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
1706 fdircmd |= (u32)input->formatted.vm_pool << IXGBE_FDIRCMD_VT_POOL_SHIFT;
1708 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, fdircmd);
1709 err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
1711 hw_dbg(hw, "Flow Director command did not complete!\n");
1718 s32 ixgbe_fdir_erase_perfect_filter_82599(struct ixgbe_hw *hw,
1719 union ixgbe_atr_input *input,
1726 /* configure FDIRHASH register */
1727 fdirhash = input->formatted.bkt_hash;
1728 fdirhash |= soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT;
1729 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
1731 /* flush hash to HW */
1732 IXGBE_WRITE_FLUSH(hw);
1734 /* Query if filter is present */
1735 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, IXGBE_FDIRCMD_CMD_QUERY_REM_FILT);
1737 err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
1739 hw_dbg(hw, "Flow Director command did not complete!\n");
1743 /* if filter exists in hardware then remove it */
1744 if (fdircmd & IXGBE_FDIRCMD_FILTER_VALID) {
1745 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
1746 IXGBE_WRITE_FLUSH(hw);
1747 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1748 IXGBE_FDIRCMD_CMD_REMOVE_FLOW);
1755 * ixgbe_read_analog_reg8_82599 - Reads 8 bit Omer analog register
1756 * @hw: pointer to hardware structure
1757 * @reg: analog register to read
1760 * Performs read operation to Omer analog register specified.
1762 static s32 ixgbe_read_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 *val)
1766 IXGBE_WRITE_REG(hw, IXGBE_CORECTL, IXGBE_CORECTL_WRITE_CMD |
1768 IXGBE_WRITE_FLUSH(hw);
1770 core_ctl = IXGBE_READ_REG(hw, IXGBE_CORECTL);
1771 *val = (u8)core_ctl;
1777 * ixgbe_write_analog_reg8_82599 - Writes 8 bit Omer analog register
1778 * @hw: pointer to hardware structure
1779 * @reg: atlas register to write
1780 * @val: value to write
1782 * Performs write operation to Omer analog register specified.
1784 static s32 ixgbe_write_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 val)
1788 core_ctl = (reg << 8) | val;
1789 IXGBE_WRITE_REG(hw, IXGBE_CORECTL, core_ctl);
1790 IXGBE_WRITE_FLUSH(hw);
1797 * ixgbe_start_hw_82599 - Prepare hardware for Tx/Rx
1798 * @hw: pointer to hardware structure
1800 * Starts the hardware using the generic start_hw function
1801 * and the generation start_hw function.
1802 * Then performs revision-specific operations, if any.
1804 static s32 ixgbe_start_hw_82599(struct ixgbe_hw *hw)
1808 ret_val = ixgbe_start_hw_generic(hw);
1812 ret_val = ixgbe_start_hw_gen2(hw);
1816 /* We need to run link autotry after the driver loads */
1817 hw->mac.autotry_restart = true;
1819 return ixgbe_verify_fw_version_82599(hw);
1823 * ixgbe_identify_phy_82599 - Get physical layer module
1824 * @hw: pointer to hardware structure
1826 * Determines the physical layer module found on the current adapter.
1827 * If PHY already detected, maintains current PHY type in hw struct,
1828 * otherwise executes the PHY detection routine.
1830 static s32 ixgbe_identify_phy_82599(struct ixgbe_hw *hw)
1834 /* Detect PHY if not unknown - returns success if already detected. */
1835 status = ixgbe_identify_phy_generic(hw);
1837 /* 82599 10GBASE-T requires an external PHY */
1838 if (hw->mac.ops.get_media_type(hw) == ixgbe_media_type_copper)
1840 status = ixgbe_identify_module_generic(hw);
1843 /* Set PHY type none if no PHY detected */
1844 if (hw->phy.type == ixgbe_phy_unknown) {
1845 hw->phy.type = ixgbe_phy_none;
1849 /* Return error if SFP module has been detected but is not supported */
1850 if (hw->phy.type == ixgbe_phy_sfp_unsupported)
1851 return IXGBE_ERR_SFP_NOT_SUPPORTED;
1857 * ixgbe_enable_rx_dma_82599 - Enable the Rx DMA unit on 82599
1858 * @hw: pointer to hardware structure
1859 * @regval: register value to write to RXCTRL
1861 * Enables the Rx DMA unit for 82599
1863 static s32 ixgbe_enable_rx_dma_82599(struct ixgbe_hw *hw, u32 regval)
1866 * Workaround for 82599 silicon errata when enabling the Rx datapath.
1867 * If traffic is incoming before we enable the Rx unit, it could hang
1868 * the Rx DMA unit. Therefore, make sure the security engine is
1869 * completely disabled prior to enabling the Rx unit.
1871 hw->mac.ops.disable_rx_buff(hw);
1873 if (regval & IXGBE_RXCTRL_RXEN)
1874 hw->mac.ops.enable_rx(hw);
1876 hw->mac.ops.disable_rx(hw);
1878 hw->mac.ops.enable_rx_buff(hw);
1884 * ixgbe_verify_fw_version_82599 - verify fw version for 82599
1885 * @hw: pointer to hardware structure
1887 * Verifies that installed the firmware version is 0.6 or higher
1888 * for SFI devices. All 82599 SFI devices should have version 0.6 or higher.
1890 * Returns IXGBE_ERR_EEPROM_VERSION if the FW is not present or
1891 * if the FW version is not supported.
1893 static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw)
1895 s32 status = IXGBE_ERR_EEPROM_VERSION;
1896 u16 fw_offset, fw_ptp_cfg_offset;
1900 /* firmware check is only necessary for SFI devices */
1901 if (hw->phy.media_type != ixgbe_media_type_fiber)
1904 /* get the offset to the Firmware Module block */
1905 offset = IXGBE_FW_PTR;
1906 if (hw->eeprom.ops.read(hw, offset, &fw_offset))
1907 goto fw_version_err;
1909 if (fw_offset == 0 || fw_offset == 0xFFFF)
1910 return IXGBE_ERR_EEPROM_VERSION;
1912 /* get the offset to the Pass Through Patch Configuration block */
1913 offset = fw_offset + IXGBE_FW_PASSTHROUGH_PATCH_CONFIG_PTR;
1914 if (hw->eeprom.ops.read(hw, offset, &fw_ptp_cfg_offset))
1915 goto fw_version_err;
1917 if (fw_ptp_cfg_offset == 0 || fw_ptp_cfg_offset == 0xFFFF)
1918 return IXGBE_ERR_EEPROM_VERSION;
1920 /* get the firmware version */
1921 offset = fw_ptp_cfg_offset + IXGBE_FW_PATCH_VERSION_4;
1922 if (hw->eeprom.ops.read(hw, offset, &fw_version))
1923 goto fw_version_err;
1925 if (fw_version > 0x5)
1931 hw_err(hw, "eeprom read at offset %d failed\n", offset);
1932 return IXGBE_ERR_EEPROM_VERSION;
1936 * ixgbe_verify_lesm_fw_enabled_82599 - Checks LESM FW module state.
1937 * @hw: pointer to hardware structure
1939 * Returns true if the LESM FW module is present and enabled. Otherwise
1940 * returns false. Smart Speed must be disabled if LESM FW module is enabled.
1942 static bool ixgbe_verify_lesm_fw_enabled_82599(struct ixgbe_hw *hw)
1944 u16 fw_offset, fw_lesm_param_offset, fw_lesm_state;
1947 /* get the offset to the Firmware Module block */
1948 status = hw->eeprom.ops.read(hw, IXGBE_FW_PTR, &fw_offset);
1950 if (status || fw_offset == 0 || fw_offset == 0xFFFF)
1953 /* get the offset to the LESM Parameters block */
1954 status = hw->eeprom.ops.read(hw, (fw_offset +
1955 IXGBE_FW_LESM_PARAMETERS_PTR),
1956 &fw_lesm_param_offset);
1959 fw_lesm_param_offset == 0 || fw_lesm_param_offset == 0xFFFF)
1962 /* get the lesm state word */
1963 status = hw->eeprom.ops.read(hw, (fw_lesm_param_offset +
1964 IXGBE_FW_LESM_STATE_1),
1967 if (!status && (fw_lesm_state & IXGBE_FW_LESM_STATE_ENABLED))
1974 * ixgbe_read_eeprom_buffer_82599 - Read EEPROM word(s) using
1975 * fastest available method
1977 * @hw: pointer to hardware structure
1978 * @offset: offset of word in EEPROM to read
1979 * @words: number of words
1980 * @data: word(s) read from the EEPROM
1982 * Retrieves 16 bit word(s) read from EEPROM
1984 static s32 ixgbe_read_eeprom_buffer_82599(struct ixgbe_hw *hw, u16 offset,
1985 u16 words, u16 *data)
1987 struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
1989 /* If EEPROM is detected and can be addressed using 14 bits,
1990 * use EERD otherwise use bit bang
1992 if (eeprom->type == ixgbe_eeprom_spi &&
1993 offset + (words - 1) <= IXGBE_EERD_MAX_ADDR)
1994 return ixgbe_read_eerd_buffer_generic(hw, offset, words, data);
1996 return ixgbe_read_eeprom_buffer_bit_bang_generic(hw, offset, words,
2001 * ixgbe_read_eeprom_82599 - Read EEPROM word using
2002 * fastest available method
2004 * @hw: pointer to hardware structure
2005 * @offset: offset of word in the EEPROM to read
2006 * @data: word read from the EEPROM
2008 * Reads a 16 bit word from the EEPROM
2010 static s32 ixgbe_read_eeprom_82599(struct ixgbe_hw *hw,
2011 u16 offset, u16 *data)
2013 struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
2016 * If EEPROM is detected and can be addressed using 14 bits,
2017 * use EERD otherwise use bit bang
2019 if (eeprom->type == ixgbe_eeprom_spi && offset <= IXGBE_EERD_MAX_ADDR)
2020 return ixgbe_read_eerd_generic(hw, offset, data);
2022 return ixgbe_read_eeprom_bit_bang_generic(hw, offset, data);
2026 * ixgbe_reset_pipeline_82599 - perform pipeline reset
2028 * @hw: pointer to hardware structure
2030 * Reset pipeline by asserting Restart_AN together with LMS change to ensure
2031 * full pipeline reset. Note - We must hold the SW/FW semaphore before writing
2032 * to AUTOC, so this function assumes the semaphore is held.
2034 static s32 ixgbe_reset_pipeline_82599(struct ixgbe_hw *hw)
2038 u32 i, autoc_reg, autoc2_reg;
2040 /* Enable link if disabled in NVM */
2041 autoc2_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
2042 if (autoc2_reg & IXGBE_AUTOC2_LINK_DISABLE_MASK) {
2043 autoc2_reg &= ~IXGBE_AUTOC2_LINK_DISABLE_MASK;
2044 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2_reg);
2045 IXGBE_WRITE_FLUSH(hw);
2048 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
2049 autoc_reg |= IXGBE_AUTOC_AN_RESTART;
2051 /* Write AUTOC register with toggled LMS[2] bit and Restart_AN */
2052 IXGBE_WRITE_REG(hw, IXGBE_AUTOC,
2053 autoc_reg ^ (0x4 << IXGBE_AUTOC_LMS_SHIFT));
2055 /* Wait for AN to leave state 0 */
2056 for (i = 0; i < 10; i++) {
2057 usleep_range(4000, 8000);
2058 anlp1_reg = IXGBE_READ_REG(hw, IXGBE_ANLP1);
2059 if (anlp1_reg & IXGBE_ANLP1_AN_STATE_MASK)
2063 if (!(anlp1_reg & IXGBE_ANLP1_AN_STATE_MASK)) {
2064 hw_dbg(hw, "auto negotiation not completed\n");
2065 ret_val = IXGBE_ERR_RESET_FAILED;
2066 goto reset_pipeline_out;
2072 /* Write AUTOC register with original LMS field and Restart_AN */
2073 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
2074 IXGBE_WRITE_FLUSH(hw);
2080 * ixgbe_read_i2c_byte_82599 - Reads 8 bit word over I2C
2081 * @hw: pointer to hardware structure
2082 * @byte_offset: byte offset to read
2083 * @dev_addr: address to read from
2086 * Performs byte read operation to SFP module's EEPROM over I2C interface at
2087 * a specified device address.
2089 static s32 ixgbe_read_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
2090 u8 dev_addr, u8 *data)
2096 if (hw->phy.qsfp_shared_i2c_bus == true) {
2097 /* Acquire I2C bus ownership. */
2098 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2099 esdp |= IXGBE_ESDP_SDP0;
2100 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2101 IXGBE_WRITE_FLUSH(hw);
2104 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2105 if (esdp & IXGBE_ESDP_SDP1)
2108 usleep_range(5000, 10000);
2113 hw_dbg(hw, "Driver can't access resource, acquiring I2C bus timeout.\n");
2114 status = IXGBE_ERR_I2C;
2115 goto release_i2c_access;
2119 status = ixgbe_read_i2c_byte_generic(hw, byte_offset, dev_addr, data);
2122 if (hw->phy.qsfp_shared_i2c_bus == true) {
2123 /* Release I2C bus ownership. */
2124 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2125 esdp &= ~IXGBE_ESDP_SDP0;
2126 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2127 IXGBE_WRITE_FLUSH(hw);
2134 * ixgbe_write_i2c_byte_82599 - Writes 8 bit word over I2C
2135 * @hw: pointer to hardware structure
2136 * @byte_offset: byte offset to write
2137 * @dev_addr: address to write to
2138 * @data: value to write
2140 * Performs byte write operation to SFP module's EEPROM over I2C interface at
2141 * a specified device address.
2143 static s32 ixgbe_write_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
2144 u8 dev_addr, u8 data)
2150 if (hw->phy.qsfp_shared_i2c_bus == true) {
2151 /* Acquire I2C bus ownership. */
2152 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2153 esdp |= IXGBE_ESDP_SDP0;
2154 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2155 IXGBE_WRITE_FLUSH(hw);
2158 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2159 if (esdp & IXGBE_ESDP_SDP1)
2162 usleep_range(5000, 10000);
2167 hw_dbg(hw, "Driver can't access resource, acquiring I2C bus timeout.\n");
2168 status = IXGBE_ERR_I2C;
2169 goto release_i2c_access;
2173 status = ixgbe_write_i2c_byte_generic(hw, byte_offset, dev_addr, data);
2176 if (hw->phy.qsfp_shared_i2c_bus == true) {
2177 /* Release I2C bus ownership. */
2178 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2179 esdp &= ~IXGBE_ESDP_SDP0;
2180 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2181 IXGBE_WRITE_FLUSH(hw);
2187 static const struct ixgbe_mac_operations mac_ops_82599 = {
2188 .init_hw = &ixgbe_init_hw_generic,
2189 .reset_hw = &ixgbe_reset_hw_82599,
2190 .start_hw = &ixgbe_start_hw_82599,
2191 .clear_hw_cntrs = &ixgbe_clear_hw_cntrs_generic,
2192 .get_media_type = &ixgbe_get_media_type_82599,
2193 .enable_rx_dma = &ixgbe_enable_rx_dma_82599,
2194 .disable_rx_buff = &ixgbe_disable_rx_buff_generic,
2195 .enable_rx_buff = &ixgbe_enable_rx_buff_generic,
2196 .get_mac_addr = &ixgbe_get_mac_addr_generic,
2197 .get_san_mac_addr = &ixgbe_get_san_mac_addr_generic,
2198 .get_device_caps = &ixgbe_get_device_caps_generic,
2199 .get_wwn_prefix = &ixgbe_get_wwn_prefix_generic,
2200 .stop_adapter = &ixgbe_stop_adapter_generic,
2201 .get_bus_info = &ixgbe_get_bus_info_generic,
2202 .set_lan_id = &ixgbe_set_lan_id_multi_port_pcie,
2203 .read_analog_reg8 = &ixgbe_read_analog_reg8_82599,
2204 .write_analog_reg8 = &ixgbe_write_analog_reg8_82599,
2205 .stop_link_on_d3 = &ixgbe_stop_mac_link_on_d3_82599,
2206 .setup_link = &ixgbe_setup_mac_link_82599,
2207 .set_rxpba = &ixgbe_set_rxpba_generic,
2208 .check_link = &ixgbe_check_mac_link_generic,
2209 .get_link_capabilities = &ixgbe_get_link_capabilities_82599,
2210 .led_on = &ixgbe_led_on_generic,
2211 .led_off = &ixgbe_led_off_generic,
2212 .init_led_link_act = ixgbe_init_led_link_act_generic,
2213 .blink_led_start = &ixgbe_blink_led_start_generic,
2214 .blink_led_stop = &ixgbe_blink_led_stop_generic,
2215 .set_rar = &ixgbe_set_rar_generic,
2216 .clear_rar = &ixgbe_clear_rar_generic,
2217 .set_vmdq = &ixgbe_set_vmdq_generic,
2218 .set_vmdq_san_mac = &ixgbe_set_vmdq_san_mac_generic,
2219 .clear_vmdq = &ixgbe_clear_vmdq_generic,
2220 .init_rx_addrs = &ixgbe_init_rx_addrs_generic,
2221 .update_mc_addr_list = &ixgbe_update_mc_addr_list_generic,
2222 .enable_mc = &ixgbe_enable_mc_generic,
2223 .disable_mc = &ixgbe_disable_mc_generic,
2224 .clear_vfta = &ixgbe_clear_vfta_generic,
2225 .set_vfta = &ixgbe_set_vfta_generic,
2226 .fc_enable = &ixgbe_fc_enable_generic,
2227 .setup_fc = ixgbe_setup_fc_generic,
2228 .fc_autoneg = ixgbe_fc_autoneg,
2229 .set_fw_drv_ver = &ixgbe_set_fw_drv_ver_generic,
2230 .init_uta_tables = &ixgbe_init_uta_tables_generic,
2231 .setup_sfp = &ixgbe_setup_sfp_modules_82599,
2232 .set_mac_anti_spoofing = &ixgbe_set_mac_anti_spoofing,
2233 .set_vlan_anti_spoofing = &ixgbe_set_vlan_anti_spoofing,
2234 .acquire_swfw_sync = &ixgbe_acquire_swfw_sync,
2235 .release_swfw_sync = &ixgbe_release_swfw_sync,
2236 .init_swfw_sync = NULL,
2237 .get_thermal_sensor_data = &ixgbe_get_thermal_sensor_data_generic,
2238 .init_thermal_sensor_thresh = &ixgbe_init_thermal_sensor_thresh_generic,
2239 .prot_autoc_read = &prot_autoc_read_82599,
2240 .prot_autoc_write = &prot_autoc_write_82599,
2241 .enable_rx = &ixgbe_enable_rx_generic,
2242 .disable_rx = &ixgbe_disable_rx_generic,
2245 static const struct ixgbe_eeprom_operations eeprom_ops_82599 = {
2246 .init_params = &ixgbe_init_eeprom_params_generic,
2247 .read = &ixgbe_read_eeprom_82599,
2248 .read_buffer = &ixgbe_read_eeprom_buffer_82599,
2249 .write = &ixgbe_write_eeprom_generic,
2250 .write_buffer = &ixgbe_write_eeprom_buffer_bit_bang_generic,
2251 .calc_checksum = &ixgbe_calc_eeprom_checksum_generic,
2252 .validate_checksum = &ixgbe_validate_eeprom_checksum_generic,
2253 .update_checksum = &ixgbe_update_eeprom_checksum_generic,
2256 static const struct ixgbe_phy_operations phy_ops_82599 = {
2257 .identify = &ixgbe_identify_phy_82599,
2258 .identify_sfp = &ixgbe_identify_module_generic,
2259 .init = &ixgbe_init_phy_ops_82599,
2260 .reset = &ixgbe_reset_phy_generic,
2261 .read_reg = &ixgbe_read_phy_reg_generic,
2262 .write_reg = &ixgbe_write_phy_reg_generic,
2263 .setup_link = &ixgbe_setup_phy_link_generic,
2264 .setup_link_speed = &ixgbe_setup_phy_link_speed_generic,
2265 .read_i2c_byte = &ixgbe_read_i2c_byte_generic,
2266 .write_i2c_byte = &ixgbe_write_i2c_byte_generic,
2267 .read_i2c_sff8472 = &ixgbe_read_i2c_sff8472_generic,
2268 .read_i2c_eeprom = &ixgbe_read_i2c_eeprom_generic,
2269 .write_i2c_eeprom = &ixgbe_write_i2c_eeprom_generic,
2270 .check_overtemp = &ixgbe_tn_check_overtemp,
2273 const struct ixgbe_info ixgbe_82599_info = {
2274 .mac = ixgbe_mac_82599EB,
2275 .get_invariants = &ixgbe_get_invariants_82599,
2276 .mac_ops = &mac_ops_82599,
2277 .eeprom_ops = &eeprom_ops_82599,
2278 .phy_ops = &phy_ops_82599,
2279 .mbx_ops = &mbx_ops_generic,
2280 .mvals = ixgbe_mvals_8259X,