1 /*******************************************************************************
3 Intel 10 Gigabit PCI Express Linux driver
4 Copyright(c) 1999 - 2014 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);
47 static s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw,
48 ixgbe_link_speed speed,
49 bool autoneg_wait_to_complete);
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 static bool ixgbe_mng_enabled(struct ixgbe_hw *hw)
72 u32 fwsm, manc, factps;
74 fwsm = IXGBE_READ_REG(hw, IXGBE_FWSM);
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);
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 !hw->mng_fw_enabled) {
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;
113 if ((mac->ops.get_media_type(hw) ==
114 ixgbe_media_type_backplane) &&
115 (hw->phy.smart_speed == ixgbe_smart_speed_auto ||
116 hw->phy.smart_speed == ixgbe_smart_speed_on) &&
117 !ixgbe_verify_lesm_fw_enabled_82599(hw))
118 mac->ops.setup_link = &ixgbe_setup_mac_link_smartspeed;
120 mac->ops.setup_link = &ixgbe_setup_mac_link_82599;
124 static s32 ixgbe_setup_sfp_modules_82599(struct ixgbe_hw *hw)
127 u16 list_offset, data_offset, data_value;
129 if (hw->phy.sfp_type != ixgbe_sfp_type_unknown) {
130 ixgbe_init_mac_link_ops_82599(hw);
132 hw->phy.ops.reset = NULL;
134 ret_val = ixgbe_get_sfp_init_sequence_offsets(hw, &list_offset,
139 /* PHY config will finish before releasing the semaphore */
140 ret_val = hw->mac.ops.acquire_swfw_sync(hw,
141 IXGBE_GSSR_MAC_CSR_SM);
143 ret_val = 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 ret_val = IXGBE_ERR_SFP_SETUP_NOT_COMPLETE;
181 /* Release the semaphore */
182 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
183 /* Delay obtaining semaphore again to allow FW access,
184 * semaphore_delay is in ms usleep_range needs us.
186 usleep_range(hw->eeprom.semaphore_delay * 1000,
187 hw->eeprom.semaphore_delay * 2000);
188 hw_err(hw, "eeprom read at offset %d failed\n", data_offset);
189 return IXGBE_ERR_SFP_SETUP_NOT_COMPLETE;
193 * prot_autoc_read_82599 - Hides MAC differences needed for AUTOC read
194 * @hw: pointer to hardware structure
195 * @locked: Return the if we locked for this read.
196 * @reg_val: Value we read from AUTOC
198 * For this part (82599) we need to wrap read-modify-writes with a possible
199 * FW/SW lock. It is assumed this lock will be freed with the next
200 * prot_autoc_write_82599(). Note, that locked can only be true in cases
201 * where this function doesn't return an error.
203 static s32 prot_autoc_read_82599(struct ixgbe_hw *hw, bool *locked,
209 /* If LESM is on then we need to hold the SW/FW semaphore. */
210 if (ixgbe_verify_lesm_fw_enabled_82599(hw)) {
211 ret_val = hw->mac.ops.acquire_swfw_sync(hw,
212 IXGBE_GSSR_MAC_CSR_SM);
214 return IXGBE_ERR_SWFW_SYNC;
219 *reg_val = IXGBE_READ_REG(hw, IXGBE_AUTOC);
224 * prot_autoc_write_82599 - Hides MAC differences needed for AUTOC write
225 * @hw: pointer to hardware structure
226 * @reg_val: value to write to AUTOC
227 * @locked: bool to indicate whether the SW/FW lock was already taken by
228 * previous proc_autoc_read_82599.
230 * This part (82599) may need to hold a the SW/FW lock around all writes to
231 * AUTOC. Likewise after a write we need to do a pipeline reset.
233 static s32 prot_autoc_write_82599(struct ixgbe_hw *hw, u32 autoc, bool locked)
237 /* Blocked by MNG FW so bail */
238 if (ixgbe_check_reset_blocked(hw))
241 /* We only need to get the lock if:
242 * - We didn't do it already (in the read part of a read-modify-write)
245 if (!locked && ixgbe_verify_lesm_fw_enabled_82599(hw)) {
246 ret_val = hw->mac.ops.acquire_swfw_sync(hw,
247 IXGBE_GSSR_MAC_CSR_SM);
249 return IXGBE_ERR_SWFW_SYNC;
254 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc);
255 ret_val = ixgbe_reset_pipeline_82599(hw);
258 /* Free the SW/FW semaphore as we either grabbed it here or
259 * already had it when this function was called.
262 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
267 static s32 ixgbe_get_invariants_82599(struct ixgbe_hw *hw)
269 struct ixgbe_mac_info *mac = &hw->mac;
271 ixgbe_init_mac_link_ops_82599(hw);
273 mac->mcft_size = IXGBE_82599_MC_TBL_SIZE;
274 mac->vft_size = IXGBE_82599_VFT_TBL_SIZE;
275 mac->num_rar_entries = IXGBE_82599_RAR_ENTRIES;
276 mac->rx_pb_size = IXGBE_82599_RX_PB_SIZE;
277 mac->max_rx_queues = IXGBE_82599_MAX_RX_QUEUES;
278 mac->max_tx_queues = IXGBE_82599_MAX_TX_QUEUES;
279 mac->max_msix_vectors = ixgbe_get_pcie_msix_count_generic(hw);
285 * ixgbe_init_phy_ops_82599 - PHY/SFP specific init
286 * @hw: pointer to hardware structure
288 * Initialize any function pointers that were not able to be
289 * set during get_invariants because the PHY/SFP type was
290 * not known. Perform the SFP init if necessary.
293 static s32 ixgbe_init_phy_ops_82599(struct ixgbe_hw *hw)
295 struct ixgbe_mac_info *mac = &hw->mac;
296 struct ixgbe_phy_info *phy = &hw->phy;
300 if (hw->device_id == IXGBE_DEV_ID_82599_QSFP_SF_QP) {
301 /* Store flag indicating I2C bus access control unit. */
302 hw->phy.qsfp_shared_i2c_bus = true;
304 /* Initialize access to QSFP+ I2C bus */
305 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
306 esdp |= IXGBE_ESDP_SDP0_DIR;
307 esdp &= ~IXGBE_ESDP_SDP1_DIR;
308 esdp &= ~IXGBE_ESDP_SDP0;
309 esdp &= ~IXGBE_ESDP_SDP0_NATIVE;
310 esdp &= ~IXGBE_ESDP_SDP1_NATIVE;
311 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
312 IXGBE_WRITE_FLUSH(hw);
314 phy->ops.read_i2c_byte = &ixgbe_read_i2c_byte_82599;
315 phy->ops.write_i2c_byte = &ixgbe_write_i2c_byte_82599;
318 /* Identify the PHY or SFP module */
319 ret_val = phy->ops.identify(hw);
321 /* Setup function pointers based on detected SFP module and speeds */
322 ixgbe_init_mac_link_ops_82599(hw);
324 /* If copper media, overwrite with copper function pointers */
325 if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper) {
326 mac->ops.setup_link = &ixgbe_setup_copper_link_82599;
327 mac->ops.get_link_capabilities =
328 &ixgbe_get_copper_link_capabilities_generic;
331 /* Set necessary function pointers based on phy type */
332 switch (hw->phy.type) {
334 phy->ops.check_link = &ixgbe_check_phy_link_tnx;
335 phy->ops.setup_link = &ixgbe_setup_phy_link_tnx;
336 phy->ops.get_firmware_version =
337 &ixgbe_get_phy_firmware_version_tnx;
347 * ixgbe_get_link_capabilities_82599 - Determines link capabilities
348 * @hw: pointer to hardware structure
349 * @speed: pointer to link speed
350 * @autoneg: true when autoneg or autotry is enabled
352 * Determines the link capabilities by reading the AUTOC register.
354 static s32 ixgbe_get_link_capabilities_82599(struct ixgbe_hw *hw,
355 ixgbe_link_speed *speed,
361 /* Determine 1G link capabilities off of SFP+ type */
362 if (hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core0 ||
363 hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core1 ||
364 hw->phy.sfp_type == ixgbe_sfp_type_1g_lx_core0 ||
365 hw->phy.sfp_type == ixgbe_sfp_type_1g_lx_core1 ||
366 hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core0 ||
367 hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core1) {
368 *speed = IXGBE_LINK_SPEED_1GB_FULL;
374 * Determine link capabilities based on the stored value of AUTOC,
375 * which represents EEPROM defaults. If AUTOC value has not been
376 * stored, use the current register value.
378 if (hw->mac.orig_link_settings_stored)
379 autoc = hw->mac.orig_autoc;
381 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
383 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
384 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
385 *speed = IXGBE_LINK_SPEED_1GB_FULL;
389 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
390 *speed = IXGBE_LINK_SPEED_10GB_FULL;
394 case IXGBE_AUTOC_LMS_1G_AN:
395 *speed = IXGBE_LINK_SPEED_1GB_FULL;
399 case IXGBE_AUTOC_LMS_10G_SERIAL:
400 *speed = IXGBE_LINK_SPEED_10GB_FULL;
404 case IXGBE_AUTOC_LMS_KX4_KX_KR:
405 case IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN:
406 *speed = IXGBE_LINK_SPEED_UNKNOWN;
407 if (autoc & IXGBE_AUTOC_KR_SUPP)
408 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
409 if (autoc & IXGBE_AUTOC_KX4_SUPP)
410 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
411 if (autoc & IXGBE_AUTOC_KX_SUPP)
412 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
416 case IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII:
417 *speed = IXGBE_LINK_SPEED_100_FULL;
418 if (autoc & IXGBE_AUTOC_KR_SUPP)
419 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
420 if (autoc & IXGBE_AUTOC_KX4_SUPP)
421 *speed |= IXGBE_LINK_SPEED_10GB_FULL;
422 if (autoc & IXGBE_AUTOC_KX_SUPP)
423 *speed |= IXGBE_LINK_SPEED_1GB_FULL;
427 case IXGBE_AUTOC_LMS_SGMII_1G_100M:
428 *speed = IXGBE_LINK_SPEED_1GB_FULL | IXGBE_LINK_SPEED_100_FULL;
433 status = IXGBE_ERR_LINK_SETUP;
438 if (hw->phy.multispeed_fiber) {
439 *speed |= IXGBE_LINK_SPEED_10GB_FULL |
440 IXGBE_LINK_SPEED_1GB_FULL;
442 /* QSFP must not enable auto-negotiation */
443 if (hw->phy.media_type == ixgbe_media_type_fiber_qsfp)
454 * ixgbe_get_media_type_82599 - Get media type
455 * @hw: pointer to hardware structure
457 * Returns the media type (fiber, copper, backplane)
459 static enum ixgbe_media_type ixgbe_get_media_type_82599(struct ixgbe_hw *hw)
461 enum ixgbe_media_type media_type;
463 /* Detect if there is a copper PHY attached. */
464 switch (hw->phy.type) {
465 case ixgbe_phy_cu_unknown:
467 media_type = ixgbe_media_type_copper;
473 switch (hw->device_id) {
474 case IXGBE_DEV_ID_82599_KX4:
475 case IXGBE_DEV_ID_82599_KX4_MEZZ:
476 case IXGBE_DEV_ID_82599_COMBO_BACKPLANE:
477 case IXGBE_DEV_ID_82599_KR:
478 case IXGBE_DEV_ID_82599_BACKPLANE_FCOE:
479 case IXGBE_DEV_ID_82599_XAUI_LOM:
480 /* Default device ID is mezzanine card KX/KX4 */
481 media_type = ixgbe_media_type_backplane;
483 case IXGBE_DEV_ID_82599_SFP:
484 case IXGBE_DEV_ID_82599_SFP_FCOE:
485 case IXGBE_DEV_ID_82599_SFP_EM:
486 case IXGBE_DEV_ID_82599_SFP_SF2:
487 case IXGBE_DEV_ID_82599_SFP_SF_QP:
488 case IXGBE_DEV_ID_82599EN_SFP:
489 media_type = ixgbe_media_type_fiber;
491 case IXGBE_DEV_ID_82599_CX4:
492 media_type = ixgbe_media_type_cx4;
494 case IXGBE_DEV_ID_82599_T3_LOM:
495 media_type = ixgbe_media_type_copper;
497 case IXGBE_DEV_ID_82599_LS:
498 media_type = ixgbe_media_type_fiber_lco;
500 case IXGBE_DEV_ID_82599_QSFP_SF_QP:
501 media_type = ixgbe_media_type_fiber_qsfp;
504 media_type = ixgbe_media_type_unknown;
512 * ixgbe_stop_mac_link_on_d3_82599 - Disables link on D3
513 * @hw: pointer to hardware structure
515 * Disables link, should be called during D3 power down sequence.
518 static void ixgbe_stop_mac_link_on_d3_82599(struct ixgbe_hw *hw)
520 u32 autoc2_reg, fwsm;
523 hw->eeprom.ops.read(hw, IXGBE_EEPROM_CTRL_2, &ee_ctrl_2);
525 /* Check to see if MNG FW could be enabled */
526 fwsm = IXGBE_READ_REG(hw, IXGBE_FWSM);
528 if (((fwsm & IXGBE_FWSM_MODE_MASK) != IXGBE_FWSM_FW_MODE_PT) &&
530 ee_ctrl_2 & IXGBE_EEPROM_CCD_BIT) {
531 autoc2_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
532 autoc2_reg |= IXGBE_AUTOC2_LINK_DISABLE_ON_D3_MASK;
533 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2_reg);
538 * ixgbe_start_mac_link_82599 - Setup MAC link settings
539 * @hw: pointer to hardware structure
540 * @autoneg_wait_to_complete: true when waiting for completion is needed
542 * Configures link settings based on values in the ixgbe_hw struct.
543 * Restarts the link. Performs autonegotiation if needed.
545 static s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw,
546 bool autoneg_wait_to_complete)
552 bool got_lock = false;
554 if (ixgbe_verify_lesm_fw_enabled_82599(hw)) {
555 status = hw->mac.ops.acquire_swfw_sync(hw,
556 IXGBE_GSSR_MAC_CSR_SM);
564 ixgbe_reset_pipeline_82599(hw);
567 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
569 /* Only poll for autoneg to complete if specified to do so */
570 if (autoneg_wait_to_complete) {
571 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
572 if ((autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
573 IXGBE_AUTOC_LMS_KX4_KX_KR ||
574 (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
575 IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
576 (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
577 IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
578 links_reg = 0; /* Just in case Autoneg time = 0 */
579 for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
580 links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
581 if (links_reg & IXGBE_LINKS_KX_AN_COMP)
585 if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
586 status = IXGBE_ERR_AUTONEG_NOT_COMPLETE;
587 hw_dbg(hw, "Autoneg did not complete.\n");
592 /* Add delay to filter out noises during initial link setup */
600 * ixgbe_disable_tx_laser_multispeed_fiber - Disable Tx laser
601 * @hw: pointer to hardware structure
603 * The base drivers may require better control over SFP+ module
604 * PHY states. This includes selectively shutting down the Tx
605 * laser on the PHY, effectively halting physical link.
607 static void ixgbe_disable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
609 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
611 /* Blocked by MNG FW so bail */
612 if (ixgbe_check_reset_blocked(hw))
615 /* Disable tx laser; allow 100us to go dark per spec */
616 esdp_reg |= IXGBE_ESDP_SDP3;
617 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
618 IXGBE_WRITE_FLUSH(hw);
623 * ixgbe_enable_tx_laser_multispeed_fiber - Enable Tx laser
624 * @hw: pointer to hardware structure
626 * The base drivers may require better control over SFP+ module
627 * PHY states. This includes selectively turning on the Tx
628 * laser on the PHY, effectively starting physical link.
630 static void ixgbe_enable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
632 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
634 /* Enable tx laser; allow 100ms to light up */
635 esdp_reg &= ~IXGBE_ESDP_SDP3;
636 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
637 IXGBE_WRITE_FLUSH(hw);
642 * ixgbe_flap_tx_laser_multispeed_fiber - Flap Tx laser
643 * @hw: pointer to hardware structure
645 * When the driver changes the link speeds that it can support,
646 * it sets autotry_restart to true to indicate that we need to
647 * initiate a new autotry session with the link partner. To do
648 * so, we set the speed then disable and re-enable the tx laser, to
649 * alert the link partner that it also needs to restart autotry on its
650 * end. This is consistent with true clause 37 autoneg, which also
651 * involves a loss of signal.
653 static void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
655 /* Blocked by MNG FW so bail */
656 if (ixgbe_check_reset_blocked(hw))
659 if (hw->mac.autotry_restart) {
660 ixgbe_disable_tx_laser_multispeed_fiber(hw);
661 ixgbe_enable_tx_laser_multispeed_fiber(hw);
662 hw->mac.autotry_restart = false;
667 * ixgbe_set_fiber_fixed_speed - Set module link speed for fixed fiber
668 * @hw: pointer to hardware structure
669 * @speed: link speed to set
671 * We set the module speed differently for fixed fiber. For other
672 * multi-speed devices we don't have an error value so here if we
673 * detect an error we just log it and exit.
675 static void ixgbe_set_fiber_fixed_speed(struct ixgbe_hw *hw,
676 ixgbe_link_speed speed)
682 case IXGBE_LINK_SPEED_10GB_FULL:
683 /* one bit mask same as setting on */
684 rs = IXGBE_SFF_SOFT_RS_SELECT_10G;
686 case IXGBE_LINK_SPEED_1GB_FULL:
687 rs = IXGBE_SFF_SOFT_RS_SELECT_1G;
690 hw_dbg(hw, "Invalid fixed module speed\n");
695 status = hw->phy.ops.read_i2c_byte(hw, IXGBE_SFF_SFF_8472_OSCB,
696 IXGBE_I2C_EEPROM_DEV_ADDR2,
699 hw_dbg(hw, "Failed to read Rx Rate Select RS0\n");
703 eeprom_data = (eeprom_data & ~IXGBE_SFF_SOFT_RS_SELECT_MASK) | rs;
705 status = hw->phy.ops.write_i2c_byte(hw, IXGBE_SFF_SFF_8472_OSCB,
706 IXGBE_I2C_EEPROM_DEV_ADDR2,
709 hw_dbg(hw, "Failed to write Rx Rate Select RS0\n");
714 status = hw->phy.ops.read_i2c_byte(hw, IXGBE_SFF_SFF_8472_ESCB,
715 IXGBE_I2C_EEPROM_DEV_ADDR2,
718 hw_dbg(hw, "Failed to read Rx Rate Select RS1\n");
722 eeprom_data = (eeprom_data & ~IXGBE_SFF_SOFT_RS_SELECT_MASK) & rs;
724 status = hw->phy.ops.write_i2c_byte(hw, IXGBE_SFF_SFF_8472_ESCB,
725 IXGBE_I2C_EEPROM_DEV_ADDR2,
728 hw_dbg(hw, "Failed to write Rx Rate Select RS1\n");
736 * ixgbe_setup_mac_link_multispeed_fiber - Set MAC link speed
737 * @hw: pointer to hardware structure
738 * @speed: new link speed
739 * @autoneg_wait_to_complete: true when waiting for completion is needed
741 * Set the link speed in the AUTOC register and restarts link.
743 static s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw,
744 ixgbe_link_speed speed,
745 bool autoneg_wait_to_complete)
748 ixgbe_link_speed link_speed = IXGBE_LINK_SPEED_UNKNOWN;
749 ixgbe_link_speed highest_link_speed = IXGBE_LINK_SPEED_UNKNOWN;
751 u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
753 bool link_up = false;
754 bool autoneg = false;
756 /* Mask off requested but non-supported speeds */
757 status = hw->mac.ops.get_link_capabilities(hw, &link_speed,
765 * Try each speed one by one, highest priority first. We do this in
766 * software because 10gb fiber doesn't support speed autonegotiation.
768 if (speed & IXGBE_LINK_SPEED_10GB_FULL) {
770 highest_link_speed = IXGBE_LINK_SPEED_10GB_FULL;
772 /* If we already have link at this speed, just jump out */
773 status = hw->mac.ops.check_link(hw, &link_speed, &link_up,
778 if ((link_speed == IXGBE_LINK_SPEED_10GB_FULL) && link_up)
781 /* Set the module link speed */
782 switch (hw->phy.media_type) {
783 case ixgbe_media_type_fiber:
784 esdp_reg |= (IXGBE_ESDP_SDP5_DIR | IXGBE_ESDP_SDP5);
785 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
786 IXGBE_WRITE_FLUSH(hw);
788 case ixgbe_media_type_fiber_qsfp:
789 /* QSFP module automatically detects MAC link speed */
792 hw_dbg(hw, "Unexpected media type.\n");
796 /* Allow module to change analog characteristics (1G->10G) */
799 status = ixgbe_setup_mac_link_82599(hw,
800 IXGBE_LINK_SPEED_10GB_FULL,
801 autoneg_wait_to_complete);
805 /* Flap the tx laser if it has not already been done */
806 if (hw->mac.ops.flap_tx_laser)
807 hw->mac.ops.flap_tx_laser(hw);
810 * Wait for the controller to acquire link. Per IEEE 802.3ap,
811 * Section 73.10.2, we may have to wait up to 500ms if KR is
812 * attempted. 82599 uses the same timing for 10g SFI.
814 for (i = 0; i < 5; i++) {
815 /* Wait for the link partner to also set speed */
818 /* If we have link, just jump out */
819 status = hw->mac.ops.check_link(hw, &link_speed,
829 if (speed & IXGBE_LINK_SPEED_1GB_FULL) {
831 if (highest_link_speed == IXGBE_LINK_SPEED_UNKNOWN)
832 highest_link_speed = IXGBE_LINK_SPEED_1GB_FULL;
834 /* If we already have link at this speed, just jump out */
835 status = hw->mac.ops.check_link(hw, &link_speed, &link_up,
840 if ((link_speed == IXGBE_LINK_SPEED_1GB_FULL) && link_up)
843 /* Set the module link speed */
844 switch (hw->phy.media_type) {
845 case ixgbe_media_type_fiber_fixed:
846 ixgbe_set_fiber_fixed_speed(hw,
847 IXGBE_LINK_SPEED_1GB_FULL);
849 case ixgbe_media_type_fiber:
850 esdp_reg &= ~IXGBE_ESDP_SDP5;
851 esdp_reg |= IXGBE_ESDP_SDP5_DIR;
852 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
853 IXGBE_WRITE_FLUSH(hw);
855 case ixgbe_media_type_fiber_qsfp:
856 /* QSFP module automatically detects MAC link speed */
859 hw_dbg(hw, "Unexpected media type.\n");
863 /* Allow module to change analog characteristics (10G->1G) */
866 status = ixgbe_setup_mac_link_82599(hw,
867 IXGBE_LINK_SPEED_1GB_FULL,
868 autoneg_wait_to_complete);
872 /* Flap the tx laser if it has not already been done */
873 if (hw->mac.ops.flap_tx_laser)
874 hw->mac.ops.flap_tx_laser(hw);
876 /* Wait for the link partner to also set speed */
879 /* If we have link, just jump out */
880 status = hw->mac.ops.check_link(hw, &link_speed, &link_up,
890 * We didn't get link. Configure back to the highest speed we tried,
891 * (if there was more than one). We call ourselves back with just the
892 * single highest speed that the user requested.
895 status = ixgbe_setup_mac_link_multispeed_fiber(hw,
897 autoneg_wait_to_complete);
900 /* Set autoneg_advertised value based on input link speed */
901 hw->phy.autoneg_advertised = 0;
903 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
904 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_10GB_FULL;
906 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
907 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_1GB_FULL;
913 * ixgbe_setup_mac_link_smartspeed - Set MAC link speed using SmartSpeed
914 * @hw: pointer to hardware structure
915 * @speed: new link speed
916 * @autoneg_wait_to_complete: true when waiting for completion is needed
918 * Implements the Intel SmartSpeed algorithm.
920 static s32 ixgbe_setup_mac_link_smartspeed(struct ixgbe_hw *hw,
921 ixgbe_link_speed speed,
922 bool autoneg_wait_to_complete)
925 ixgbe_link_speed link_speed = IXGBE_LINK_SPEED_UNKNOWN;
927 bool link_up = false;
928 u32 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
930 /* Set autoneg_advertised value based on input link speed */
931 hw->phy.autoneg_advertised = 0;
933 if (speed & IXGBE_LINK_SPEED_10GB_FULL)
934 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_10GB_FULL;
936 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
937 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_1GB_FULL;
939 if (speed & IXGBE_LINK_SPEED_100_FULL)
940 hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_100_FULL;
943 * Implement Intel SmartSpeed algorithm. SmartSpeed will reduce the
944 * autoneg advertisement if link is unable to be established at the
945 * highest negotiated rate. This can sometimes happen due to integrity
946 * issues with the physical media connection.
949 /* First, try to get link with full advertisement */
950 hw->phy.smart_speed_active = false;
951 for (j = 0; j < IXGBE_SMARTSPEED_MAX_RETRIES; j++) {
952 status = ixgbe_setup_mac_link_82599(hw, speed,
953 autoneg_wait_to_complete);
958 * Wait for the controller to acquire link. Per IEEE 802.3ap,
959 * Section 73.10.2, we may have to wait up to 500ms if KR is
960 * attempted, or 200ms if KX/KX4/BX/BX4 is attempted, per
961 * Table 9 in the AN MAS.
963 for (i = 0; i < 5; i++) {
966 /* If we have link, just jump out */
967 status = hw->mac.ops.check_link(hw, &link_speed,
978 * We didn't get link. If we advertised KR plus one of KX4/KX
979 * (or BX4/BX), then disable KR and try again.
981 if (((autoc_reg & IXGBE_AUTOC_KR_SUPP) == 0) ||
982 ((autoc_reg & IXGBE_AUTOC_KX4_KX_SUPP_MASK) == 0))
985 /* Turn SmartSpeed on to disable KR support */
986 hw->phy.smart_speed_active = true;
987 status = ixgbe_setup_mac_link_82599(hw, speed,
988 autoneg_wait_to_complete);
993 * Wait for the controller to acquire link. 600ms will allow for
994 * the AN link_fail_inhibit_timer as well for multiple cycles of
995 * parallel detect, both 10g and 1g. This allows for the maximum
996 * connect attempts as defined in the AN MAS table 73-7.
998 for (i = 0; i < 6; i++) {
1001 /* If we have link, just jump out */
1002 status = hw->mac.ops.check_link(hw, &link_speed,
1011 /* We didn't get link. Turn SmartSpeed back off. */
1012 hw->phy.smart_speed_active = false;
1013 status = ixgbe_setup_mac_link_82599(hw, speed,
1014 autoneg_wait_to_complete);
1017 if (link_up && (link_speed == IXGBE_LINK_SPEED_1GB_FULL))
1018 hw_dbg(hw, "Smartspeed has downgraded the link speed from the maximum advertised\n");
1023 * ixgbe_setup_mac_link_82599 - Set MAC link speed
1024 * @hw: pointer to hardware structure
1025 * @speed: new link speed
1026 * @autoneg_wait_to_complete: true when waiting for completion is needed
1028 * Set the link speed in the AUTOC register and restarts link.
1030 static s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw,
1031 ixgbe_link_speed speed,
1032 bool autoneg_wait_to_complete)
1035 u32 autoc, pma_pmd_1g, link_mode, start_autoc;
1036 u32 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
1038 u32 pma_pmd_10g_serial = autoc2 & IXGBE_AUTOC2_10G_SERIAL_PMA_PMD_MASK;
1041 ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN;
1042 bool autoneg = false;
1044 /* Check to see if speed passed in is supported. */
1045 status = hw->mac.ops.get_link_capabilities(hw, &link_capabilities,
1050 speed &= link_capabilities;
1052 if (speed == IXGBE_LINK_SPEED_UNKNOWN) {
1053 status = IXGBE_ERR_LINK_SETUP;
1057 /* Use stored value (EEPROM defaults) of AUTOC to find KR/KX4 support*/
1058 if (hw->mac.orig_link_settings_stored)
1059 autoc = hw->mac.orig_autoc;
1061 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
1064 start_autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
1065 link_mode = autoc & IXGBE_AUTOC_LMS_MASK;
1066 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;
1068 if (link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR ||
1069 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
1070 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
1071 /* Set KX4/KX/KR support according to speed requested */
1072 autoc &= ~(IXGBE_AUTOC_KX4_KX_SUPP_MASK | IXGBE_AUTOC_KR_SUPP);
1073 if (speed & IXGBE_LINK_SPEED_10GB_FULL) {
1074 if (orig_autoc & IXGBE_AUTOC_KX4_SUPP)
1075 autoc |= IXGBE_AUTOC_KX4_SUPP;
1076 if ((orig_autoc & IXGBE_AUTOC_KR_SUPP) &&
1077 (hw->phy.smart_speed_active == false))
1078 autoc |= IXGBE_AUTOC_KR_SUPP;
1080 if (speed & IXGBE_LINK_SPEED_1GB_FULL)
1081 autoc |= IXGBE_AUTOC_KX_SUPP;
1082 } else if ((pma_pmd_1g == IXGBE_AUTOC_1G_SFI) &&
1083 (link_mode == IXGBE_AUTOC_LMS_1G_LINK_NO_AN ||
1084 link_mode == IXGBE_AUTOC_LMS_1G_AN)) {
1085 /* Switch from 1G SFI to 10G SFI if requested */
1086 if ((speed == IXGBE_LINK_SPEED_10GB_FULL) &&
1087 (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI)) {
1088 autoc &= ~IXGBE_AUTOC_LMS_MASK;
1089 autoc |= IXGBE_AUTOC_LMS_10G_SERIAL;
1091 } else if ((pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI) &&
1092 (link_mode == IXGBE_AUTOC_LMS_10G_SERIAL)) {
1093 /* Switch from 10G SFI to 1G SFI if requested */
1094 if ((speed == IXGBE_LINK_SPEED_1GB_FULL) &&
1095 (pma_pmd_1g == IXGBE_AUTOC_1G_SFI)) {
1096 autoc &= ~IXGBE_AUTOC_LMS_MASK;
1098 autoc |= IXGBE_AUTOC_LMS_1G_AN;
1100 autoc |= IXGBE_AUTOC_LMS_1G_LINK_NO_AN;
1104 if (autoc != start_autoc) {
1106 status = hw->mac.ops.prot_autoc_write(hw, autoc, false);
1110 /* Only poll for autoneg to complete if specified to do so */
1111 if (autoneg_wait_to_complete) {
1112 if (link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR ||
1113 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
1114 link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
1115 links_reg = 0; /*Just in case Autoneg time=0*/
1116 for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
1118 IXGBE_READ_REG(hw, IXGBE_LINKS);
1119 if (links_reg & IXGBE_LINKS_KX_AN_COMP)
1123 if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
1125 IXGBE_ERR_AUTONEG_NOT_COMPLETE;
1126 hw_dbg(hw, "Autoneg did not complete.\n");
1131 /* Add delay to filter out noises during initial link setup */
1140 * ixgbe_setup_copper_link_82599 - Set the PHY autoneg advertised field
1141 * @hw: pointer to hardware structure
1142 * @speed: new link speed
1143 * @autoneg_wait_to_complete: true if waiting is needed to complete
1145 * Restarts link on PHY and MAC based on settings passed in.
1147 static s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw,
1148 ixgbe_link_speed speed,
1149 bool autoneg_wait_to_complete)
1153 /* Setup the PHY according to input speed */
1154 status = hw->phy.ops.setup_link_speed(hw, speed,
1155 autoneg_wait_to_complete);
1157 ixgbe_start_mac_link_82599(hw, autoneg_wait_to_complete);
1163 * ixgbe_reset_hw_82599 - Perform hardware reset
1164 * @hw: pointer to hardware structure
1166 * Resets the hardware by resetting the transmit and receive units, masks
1167 * and clears all interrupts, perform a PHY reset, and perform a link (MAC)
1170 static s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw)
1172 ixgbe_link_speed link_speed;
1174 u32 ctrl, i, autoc, autoc2;
1176 bool link_up = false;
1178 /* Call adapter stop to disable tx/rx and clear interrupts */
1179 status = hw->mac.ops.stop_adapter(hw);
1183 /* flush pending Tx transactions */
1184 ixgbe_clear_tx_pending(hw);
1186 /* PHY ops must be identified and initialized prior to reset */
1188 /* Identify PHY and related function pointers */
1189 status = hw->phy.ops.init(hw);
1191 if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
1194 /* Setup SFP module if there is one present. */
1195 if (hw->phy.sfp_setup_needed) {
1196 status = hw->mac.ops.setup_sfp(hw);
1197 hw->phy.sfp_setup_needed = false;
1200 if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
1204 if (hw->phy.reset_disable == false && hw->phy.ops.reset != NULL)
1205 hw->phy.ops.reset(hw);
1207 /* remember AUTOC from before we reset */
1208 curr_lms = IXGBE_READ_REG(hw, IXGBE_AUTOC) & IXGBE_AUTOC_LMS_MASK;
1212 * Issue global reset to the MAC. Needs to be SW reset if link is up.
1213 * If link reset is used when link is up, it might reset the PHY when
1214 * mng is using it. If link is down or the flag to force full link
1215 * reset is set, then perform link reset.
1217 ctrl = IXGBE_CTRL_LNK_RST;
1218 if (!hw->force_full_reset) {
1219 hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
1221 ctrl = IXGBE_CTRL_RST;
1224 ctrl |= IXGBE_READ_REG(hw, IXGBE_CTRL);
1225 IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
1226 IXGBE_WRITE_FLUSH(hw);
1228 /* Poll for reset bit to self-clear indicating reset is complete */
1229 for (i = 0; i < 10; i++) {
1231 ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
1232 if (!(ctrl & IXGBE_CTRL_RST_MASK))
1236 if (ctrl & IXGBE_CTRL_RST_MASK) {
1237 status = IXGBE_ERR_RESET_FAILED;
1238 hw_dbg(hw, "Reset polling failed to complete.\n");
1244 * Double resets are required for recovery from certain error
1245 * conditions. Between resets, it is necessary to stall to allow time
1246 * for any pending HW events to complete.
1248 if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
1249 hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
1254 * Store the original AUTOC/AUTOC2 values if they have not been
1255 * stored off yet. Otherwise restore the stored original
1256 * values since the reset operation sets back to defaults.
1258 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
1259 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
1261 /* Enable link if disabled in NVM */
1262 if (autoc2 & IXGBE_AUTOC2_LINK_DISABLE_MASK) {
1263 autoc2 &= ~IXGBE_AUTOC2_LINK_DISABLE_MASK;
1264 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2);
1265 IXGBE_WRITE_FLUSH(hw);
1268 if (hw->mac.orig_link_settings_stored == false) {
1269 hw->mac.orig_autoc = autoc;
1270 hw->mac.orig_autoc2 = autoc2;
1271 hw->mac.orig_link_settings_stored = true;
1274 /* If MNG FW is running on a multi-speed device that
1275 * doesn't autoneg with out driver support we need to
1276 * leave LMS in the state it was before we MAC reset.
1277 * Likewise if we support WoL we don't want change the
1280 if ((hw->phy.multispeed_fiber && hw->mng_fw_enabled) ||
1282 hw->mac.orig_autoc =
1283 (hw->mac.orig_autoc & ~IXGBE_AUTOC_LMS_MASK) |
1286 if (autoc != hw->mac.orig_autoc) {
1287 status = hw->mac.ops.prot_autoc_write(hw,
1294 if ((autoc2 & IXGBE_AUTOC2_UPPER_MASK) !=
1295 (hw->mac.orig_autoc2 & IXGBE_AUTOC2_UPPER_MASK)) {
1296 autoc2 &= ~IXGBE_AUTOC2_UPPER_MASK;
1297 autoc2 |= (hw->mac.orig_autoc2 &
1298 IXGBE_AUTOC2_UPPER_MASK);
1299 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2);
1303 /* Store the permanent mac address */
1304 hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);
1307 * Store MAC address from RAR0, clear receive address registers, and
1308 * clear the multicast table. Also reset num_rar_entries to 128,
1309 * since we modify this value when programming the SAN MAC address.
1311 hw->mac.num_rar_entries = 128;
1312 hw->mac.ops.init_rx_addrs(hw);
1314 /* Store the permanent SAN mac address */
1315 hw->mac.ops.get_san_mac_addr(hw, hw->mac.san_addr);
1317 /* Add the SAN MAC address to the RAR only if it's a valid address */
1318 if (is_valid_ether_addr(hw->mac.san_addr)) {
1319 hw->mac.ops.set_rar(hw, hw->mac.num_rar_entries - 1,
1320 hw->mac.san_addr, 0, IXGBE_RAH_AV);
1322 /* Save the SAN MAC RAR index */
1323 hw->mac.san_mac_rar_index = hw->mac.num_rar_entries - 1;
1325 /* Reserve the last RAR for the SAN MAC address */
1326 hw->mac.num_rar_entries--;
1329 /* Store the alternative WWNN/WWPN prefix */
1330 hw->mac.ops.get_wwn_prefix(hw, &hw->mac.wwnn_prefix,
1331 &hw->mac.wwpn_prefix);
1338 * ixgbe_reinit_fdir_tables_82599 - Reinitialize Flow Director tables.
1339 * @hw: pointer to hardware structure
1341 s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw)
1344 u32 fdirctrl = IXGBE_READ_REG(hw, IXGBE_FDIRCTRL);
1345 fdirctrl &= ~IXGBE_FDIRCTRL_INIT_DONE;
1348 * Before starting reinitialization process,
1349 * FDIRCMD.CMD must be zero.
1351 for (i = 0; i < IXGBE_FDIRCMD_CMD_POLL; i++) {
1352 if (!(IXGBE_READ_REG(hw, IXGBE_FDIRCMD) &
1353 IXGBE_FDIRCMD_CMD_MASK))
1357 if (i >= IXGBE_FDIRCMD_CMD_POLL) {
1358 hw_dbg(hw, "Flow Director previous command isn't complete, "
1359 "aborting table re-initialization.\n");
1360 return IXGBE_ERR_FDIR_REINIT_FAILED;
1363 IXGBE_WRITE_REG(hw, IXGBE_FDIRFREE, 0);
1364 IXGBE_WRITE_FLUSH(hw);
1366 * 82599 adapters flow director init flow cannot be restarted,
1367 * Workaround 82599 silicon errata by performing the following steps
1368 * before re-writing the FDIRCTRL control register with the same value.
1369 * - write 1 to bit 8 of FDIRCMD register &
1370 * - write 0 to bit 8 of FDIRCMD register
1372 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1373 (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) |
1374 IXGBE_FDIRCMD_CLEARHT));
1375 IXGBE_WRITE_FLUSH(hw);
1376 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1377 (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) &
1378 ~IXGBE_FDIRCMD_CLEARHT));
1379 IXGBE_WRITE_FLUSH(hw);
1381 * Clear FDIR Hash register to clear any leftover hashes
1382 * waiting to be programmed.
1384 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, 0x00);
1385 IXGBE_WRITE_FLUSH(hw);
1387 IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
1388 IXGBE_WRITE_FLUSH(hw);
1390 /* Poll init-done after we write FDIRCTRL register */
1391 for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
1392 if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) &
1393 IXGBE_FDIRCTRL_INIT_DONE)
1395 usleep_range(1000, 2000);
1397 if (i >= IXGBE_FDIR_INIT_DONE_POLL) {
1398 hw_dbg(hw, "Flow Director Signature poll time exceeded!\n");
1399 return IXGBE_ERR_FDIR_REINIT_FAILED;
1402 /* Clear FDIR statistics registers (read to clear) */
1403 IXGBE_READ_REG(hw, IXGBE_FDIRUSTAT);
1404 IXGBE_READ_REG(hw, IXGBE_FDIRFSTAT);
1405 IXGBE_READ_REG(hw, IXGBE_FDIRMATCH);
1406 IXGBE_READ_REG(hw, IXGBE_FDIRMISS);
1407 IXGBE_READ_REG(hw, IXGBE_FDIRLEN);
1413 * ixgbe_fdir_enable_82599 - Initialize Flow Director control registers
1414 * @hw: pointer to hardware structure
1415 * @fdirctrl: value to write to flow director control register
1417 static void ixgbe_fdir_enable_82599(struct ixgbe_hw *hw, u32 fdirctrl)
1421 /* Prime the keys for hashing */
1422 IXGBE_WRITE_REG(hw, IXGBE_FDIRHKEY, IXGBE_ATR_BUCKET_HASH_KEY);
1423 IXGBE_WRITE_REG(hw, IXGBE_FDIRSKEY, IXGBE_ATR_SIGNATURE_HASH_KEY);
1426 * Poll init-done after we write the register. Estimated times:
1427 * 10G: PBALLOC = 11b, timing is 60us
1428 * 1G: PBALLOC = 11b, timing is 600us
1429 * 100M: PBALLOC = 11b, timing is 6ms
1431 * Multiple these timings by 4 if under full Rx load
1433 * So we'll poll for IXGBE_FDIR_INIT_DONE_POLL times, sleeping for
1434 * 1 msec per poll time. If we're at line rate and drop to 100M, then
1435 * this might not finish in our poll time, but we can live with that
1438 IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
1439 IXGBE_WRITE_FLUSH(hw);
1440 for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
1441 if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) &
1442 IXGBE_FDIRCTRL_INIT_DONE)
1444 usleep_range(1000, 2000);
1447 if (i >= IXGBE_FDIR_INIT_DONE_POLL)
1448 hw_dbg(hw, "Flow Director poll time exceeded!\n");
1452 * ixgbe_init_fdir_signature_82599 - Initialize Flow Director signature filters
1453 * @hw: pointer to hardware structure
1454 * @fdirctrl: value to write to flow director control register, initially
1455 * contains just the value of the Rx packet buffer allocation
1457 s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 fdirctrl)
1460 * Continue setup of fdirctrl register bits:
1461 * Move the flexible bytes to use the ethertype - shift 6 words
1462 * Set the maximum length per hash bucket to 0xA filters
1463 * Send interrupt when 64 filters are left
1465 fdirctrl |= (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT) |
1466 (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT) |
1467 (4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT);
1469 /* write hashes and fdirctrl register, poll for completion */
1470 ixgbe_fdir_enable_82599(hw, fdirctrl);
1476 * ixgbe_init_fdir_perfect_82599 - Initialize Flow Director perfect filters
1477 * @hw: pointer to hardware structure
1478 * @fdirctrl: value to write to flow director control register, initially
1479 * contains just the value of the Rx packet buffer allocation
1481 s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 fdirctrl)
1484 * Continue setup of fdirctrl register bits:
1485 * Turn perfect match filtering on
1486 * Report hash in RSS field of Rx wb descriptor
1487 * Initialize the drop queue
1488 * Move the flexible bytes to use the ethertype - shift 6 words
1489 * Set the maximum length per hash bucket to 0xA filters
1490 * Send interrupt when 64 (0x4 * 16) filters are left
1492 fdirctrl |= IXGBE_FDIRCTRL_PERFECT_MATCH |
1493 IXGBE_FDIRCTRL_REPORT_STATUS |
1494 (IXGBE_FDIR_DROP_QUEUE << IXGBE_FDIRCTRL_DROP_Q_SHIFT) |
1495 (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT) |
1496 (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT) |
1497 (4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT);
1499 /* write hashes and fdirctrl register, poll for completion */
1500 ixgbe_fdir_enable_82599(hw, fdirctrl);
1506 * These defines allow us to quickly generate all of the necessary instructions
1507 * in the function below by simply calling out IXGBE_COMPUTE_SIG_HASH_ITERATION
1508 * for values 0 through 15
1510 #define IXGBE_ATR_COMMON_HASH_KEY \
1511 (IXGBE_ATR_BUCKET_HASH_KEY & IXGBE_ATR_SIGNATURE_HASH_KEY)
1512 #define IXGBE_COMPUTE_SIG_HASH_ITERATION(_n) \
1515 if (IXGBE_ATR_COMMON_HASH_KEY & (0x01 << n)) \
1516 common_hash ^= lo_hash_dword >> n; \
1517 else if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << n)) \
1518 bucket_hash ^= lo_hash_dword >> n; \
1519 else if (IXGBE_ATR_SIGNATURE_HASH_KEY & (0x01 << n)) \
1520 sig_hash ^= lo_hash_dword << (16 - n); \
1521 if (IXGBE_ATR_COMMON_HASH_KEY & (0x01 << (n + 16))) \
1522 common_hash ^= hi_hash_dword >> n; \
1523 else if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << (n + 16))) \
1524 bucket_hash ^= hi_hash_dword >> n; \
1525 else if (IXGBE_ATR_SIGNATURE_HASH_KEY & (0x01 << (n + 16))) \
1526 sig_hash ^= hi_hash_dword << (16 - n); \
1530 * ixgbe_atr_compute_sig_hash_82599 - Compute the signature hash
1531 * @stream: input bitstream to compute the hash on
1533 * This function is almost identical to the function above but contains
1534 * several optomizations such as unwinding all of the loops, letting the
1535 * compiler work out all of the conditional ifs since the keys are static
1536 * defines, and computing two keys at once since the hashed dword stream
1537 * will be the same for both keys.
1539 static u32 ixgbe_atr_compute_sig_hash_82599(union ixgbe_atr_hash_dword input,
1540 union ixgbe_atr_hash_dword common)
1542 u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
1543 u32 sig_hash = 0, bucket_hash = 0, common_hash = 0;
1545 /* record the flow_vm_vlan bits as they are a key part to the hash */
1546 flow_vm_vlan = ntohl(input.dword);
1548 /* generate common hash dword */
1549 hi_hash_dword = ntohl(common.dword);
1551 /* low dword is word swapped version of common */
1552 lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
1554 /* apply flow ID/VM pool/VLAN ID bits to hash words */
1555 hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);
1557 /* Process bits 0 and 16 */
1558 IXGBE_COMPUTE_SIG_HASH_ITERATION(0);
1561 * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
1562 * delay this because bit 0 of the stream should not be processed
1563 * so we do not add the vlan until after bit 0 was processed
1565 lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);
1567 /* Process remaining 30 bit of the key */
1568 IXGBE_COMPUTE_SIG_HASH_ITERATION(1);
1569 IXGBE_COMPUTE_SIG_HASH_ITERATION(2);
1570 IXGBE_COMPUTE_SIG_HASH_ITERATION(3);
1571 IXGBE_COMPUTE_SIG_HASH_ITERATION(4);
1572 IXGBE_COMPUTE_SIG_HASH_ITERATION(5);
1573 IXGBE_COMPUTE_SIG_HASH_ITERATION(6);
1574 IXGBE_COMPUTE_SIG_HASH_ITERATION(7);
1575 IXGBE_COMPUTE_SIG_HASH_ITERATION(8);
1576 IXGBE_COMPUTE_SIG_HASH_ITERATION(9);
1577 IXGBE_COMPUTE_SIG_HASH_ITERATION(10);
1578 IXGBE_COMPUTE_SIG_HASH_ITERATION(11);
1579 IXGBE_COMPUTE_SIG_HASH_ITERATION(12);
1580 IXGBE_COMPUTE_SIG_HASH_ITERATION(13);
1581 IXGBE_COMPUTE_SIG_HASH_ITERATION(14);
1582 IXGBE_COMPUTE_SIG_HASH_ITERATION(15);
1584 /* combine common_hash result with signature and bucket hashes */
1585 bucket_hash ^= common_hash;
1586 bucket_hash &= IXGBE_ATR_HASH_MASK;
1588 sig_hash ^= common_hash << 16;
1589 sig_hash &= IXGBE_ATR_HASH_MASK << 16;
1591 /* return completed signature hash */
1592 return sig_hash ^ bucket_hash;
1596 * ixgbe_atr_add_signature_filter_82599 - Adds a signature hash filter
1597 * @hw: pointer to hardware structure
1598 * @input: unique input dword
1599 * @common: compressed common input dword
1600 * @queue: queue index to direct traffic to
1602 s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
1603 union ixgbe_atr_hash_dword input,
1604 union ixgbe_atr_hash_dword common,
1611 * Get the flow_type in order to program FDIRCMD properly
1612 * lowest 2 bits are FDIRCMD.L4TYPE, third lowest bit is FDIRCMD.IPV6
1614 switch (input.formatted.flow_type) {
1615 case IXGBE_ATR_FLOW_TYPE_TCPV4:
1616 case IXGBE_ATR_FLOW_TYPE_UDPV4:
1617 case IXGBE_ATR_FLOW_TYPE_SCTPV4:
1618 case IXGBE_ATR_FLOW_TYPE_TCPV6:
1619 case IXGBE_ATR_FLOW_TYPE_UDPV6:
1620 case IXGBE_ATR_FLOW_TYPE_SCTPV6:
1623 hw_dbg(hw, " Error on flow type input\n");
1624 return IXGBE_ERR_CONFIG;
1627 /* configure FDIRCMD register */
1628 fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE |
1629 IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
1630 fdircmd |= input.formatted.flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
1631 fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
1634 * The lower 32-bits of fdirhashcmd is for FDIRHASH, the upper 32-bits
1635 * is for FDIRCMD. Then do a 64-bit register write from FDIRHASH.
1637 fdirhashcmd = (u64)fdircmd << 32;
1638 fdirhashcmd |= ixgbe_atr_compute_sig_hash_82599(input, common);
1639 IXGBE_WRITE_REG64(hw, IXGBE_FDIRHASH, fdirhashcmd);
1641 hw_dbg(hw, "Tx Queue=%x hash=%x\n", queue, (u32)fdirhashcmd);
1646 #define IXGBE_COMPUTE_BKT_HASH_ITERATION(_n) \
1649 if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << n)) \
1650 bucket_hash ^= lo_hash_dword >> n; \
1651 if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << (n + 16))) \
1652 bucket_hash ^= hi_hash_dword >> n; \
1656 * ixgbe_atr_compute_perfect_hash_82599 - Compute the perfect filter hash
1657 * @atr_input: input bitstream to compute the hash on
1658 * @input_mask: mask for the input bitstream
1660 * This function serves two main purposes. First it applys the input_mask
1661 * to the atr_input resulting in a cleaned up atr_input data stream.
1662 * Secondly it computes the hash and stores it in the bkt_hash field at
1663 * the end of the input byte stream. This way it will be available for
1664 * future use without needing to recompute the hash.
1666 void ixgbe_atr_compute_perfect_hash_82599(union ixgbe_atr_input *input,
1667 union ixgbe_atr_input *input_mask)
1670 u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
1671 u32 bucket_hash = 0;
1673 /* Apply masks to input data */
1674 input->dword_stream[0] &= input_mask->dword_stream[0];
1675 input->dword_stream[1] &= input_mask->dword_stream[1];
1676 input->dword_stream[2] &= input_mask->dword_stream[2];
1677 input->dword_stream[3] &= input_mask->dword_stream[3];
1678 input->dword_stream[4] &= input_mask->dword_stream[4];
1679 input->dword_stream[5] &= input_mask->dword_stream[5];
1680 input->dword_stream[6] &= input_mask->dword_stream[6];
1681 input->dword_stream[7] &= input_mask->dword_stream[7];
1682 input->dword_stream[8] &= input_mask->dword_stream[8];
1683 input->dword_stream[9] &= input_mask->dword_stream[9];
1684 input->dword_stream[10] &= input_mask->dword_stream[10];
1686 /* record the flow_vm_vlan bits as they are a key part to the hash */
1687 flow_vm_vlan = ntohl(input->dword_stream[0]);
1689 /* generate common hash dword */
1690 hi_hash_dword = ntohl(input->dword_stream[1] ^
1691 input->dword_stream[2] ^
1692 input->dword_stream[3] ^
1693 input->dword_stream[4] ^
1694 input->dword_stream[5] ^
1695 input->dword_stream[6] ^
1696 input->dword_stream[7] ^
1697 input->dword_stream[8] ^
1698 input->dword_stream[9] ^
1699 input->dword_stream[10]);
1701 /* low dword is word swapped version of common */
1702 lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
1704 /* apply flow ID/VM pool/VLAN ID bits to hash words */
1705 hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);
1707 /* Process bits 0 and 16 */
1708 IXGBE_COMPUTE_BKT_HASH_ITERATION(0);
1711 * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
1712 * delay this because bit 0 of the stream should not be processed
1713 * so we do not add the vlan until after bit 0 was processed
1715 lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);
1717 /* Process remaining 30 bit of the key */
1718 IXGBE_COMPUTE_BKT_HASH_ITERATION(1);
1719 IXGBE_COMPUTE_BKT_HASH_ITERATION(2);
1720 IXGBE_COMPUTE_BKT_HASH_ITERATION(3);
1721 IXGBE_COMPUTE_BKT_HASH_ITERATION(4);
1722 IXGBE_COMPUTE_BKT_HASH_ITERATION(5);
1723 IXGBE_COMPUTE_BKT_HASH_ITERATION(6);
1724 IXGBE_COMPUTE_BKT_HASH_ITERATION(7);
1725 IXGBE_COMPUTE_BKT_HASH_ITERATION(8);
1726 IXGBE_COMPUTE_BKT_HASH_ITERATION(9);
1727 IXGBE_COMPUTE_BKT_HASH_ITERATION(10);
1728 IXGBE_COMPUTE_BKT_HASH_ITERATION(11);
1729 IXGBE_COMPUTE_BKT_HASH_ITERATION(12);
1730 IXGBE_COMPUTE_BKT_HASH_ITERATION(13);
1731 IXGBE_COMPUTE_BKT_HASH_ITERATION(14);
1732 IXGBE_COMPUTE_BKT_HASH_ITERATION(15);
1735 * Limit hash to 13 bits since max bucket count is 8K.
1736 * Store result at the end of the input stream.
1738 input->formatted.bkt_hash = bucket_hash & 0x1FFF;
1742 * ixgbe_get_fdirtcpm_82599 - generate a tcp port from atr_input_masks
1743 * @input_mask: mask to be bit swapped
1745 * The source and destination port masks for flow director are bit swapped
1746 * in that bit 15 effects bit 0, 14 effects 1, 13, 2 etc. In order to
1747 * generate a correctly swapped value we need to bit swap the mask and that
1748 * is what is accomplished by this function.
1750 static u32 ixgbe_get_fdirtcpm_82599(union ixgbe_atr_input *input_mask)
1752 u32 mask = ntohs(input_mask->formatted.dst_port);
1753 mask <<= IXGBE_FDIRTCPM_DPORTM_SHIFT;
1754 mask |= ntohs(input_mask->formatted.src_port);
1755 mask = ((mask & 0x55555555) << 1) | ((mask & 0xAAAAAAAA) >> 1);
1756 mask = ((mask & 0x33333333) << 2) | ((mask & 0xCCCCCCCC) >> 2);
1757 mask = ((mask & 0x0F0F0F0F) << 4) | ((mask & 0xF0F0F0F0) >> 4);
1758 return ((mask & 0x00FF00FF) << 8) | ((mask & 0xFF00FF00) >> 8);
1762 * These two macros are meant to address the fact that we have registers
1763 * that are either all or in part big-endian. As a result on big-endian
1764 * systems we will end up byte swapping the value to little-endian before
1765 * it is byte swapped again and written to the hardware in the original
1766 * big-endian format.
1768 #define IXGBE_STORE_AS_BE32(_value) \
1769 (((u32)(_value) >> 24) | (((u32)(_value) & 0x00FF0000) >> 8) | \
1770 (((u32)(_value) & 0x0000FF00) << 8) | ((u32)(_value) << 24))
1772 #define IXGBE_WRITE_REG_BE32(a, reg, value) \
1773 IXGBE_WRITE_REG((a), (reg), IXGBE_STORE_AS_BE32(ntohl(value)))
1775 #define IXGBE_STORE_AS_BE16(_value) \
1776 ntohs(((u16)(_value) >> 8) | ((u16)(_value) << 8))
1778 s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
1779 union ixgbe_atr_input *input_mask)
1781 /* mask IPv6 since it is currently not supported */
1782 u32 fdirm = IXGBE_FDIRM_DIPv6;
1786 * Program the relevant mask registers. If src/dst_port or src/dst_addr
1787 * are zero, then assume a full mask for that field. Also assume that
1788 * a VLAN of 0 is unspecified, so mask that out as well. L4type
1789 * cannot be masked out in this implementation.
1791 * This also assumes IPv4 only. IPv6 masking isn't supported at this
1795 /* verify bucket hash is cleared on hash generation */
1796 if (input_mask->formatted.bkt_hash)
1797 hw_dbg(hw, " bucket hash should always be 0 in mask\n");
1799 /* Program FDIRM and verify partial masks */
1800 switch (input_mask->formatted.vm_pool & 0x7F) {
1802 fdirm |= IXGBE_FDIRM_POOL;
1806 hw_dbg(hw, " Error on vm pool mask\n");
1807 return IXGBE_ERR_CONFIG;
1810 switch (input_mask->formatted.flow_type & IXGBE_ATR_L4TYPE_MASK) {
1812 fdirm |= IXGBE_FDIRM_L4P;
1813 if (input_mask->formatted.dst_port ||
1814 input_mask->formatted.src_port) {
1815 hw_dbg(hw, " Error on src/dst port mask\n");
1816 return IXGBE_ERR_CONFIG;
1818 case IXGBE_ATR_L4TYPE_MASK:
1821 hw_dbg(hw, " Error on flow type mask\n");
1822 return IXGBE_ERR_CONFIG;
1825 switch (ntohs(input_mask->formatted.vlan_id) & 0xEFFF) {
1827 /* mask VLAN ID, fall through to mask VLAN priority */
1828 fdirm |= IXGBE_FDIRM_VLANID;
1830 /* mask VLAN priority */
1831 fdirm |= IXGBE_FDIRM_VLANP;
1834 /* mask VLAN ID only, fall through */
1835 fdirm |= IXGBE_FDIRM_VLANID;
1837 /* no VLAN fields masked */
1840 hw_dbg(hw, " Error on VLAN mask\n");
1841 return IXGBE_ERR_CONFIG;
1844 switch (input_mask->formatted.flex_bytes & 0xFFFF) {
1846 /* Mask Flex Bytes, fall through */
1847 fdirm |= IXGBE_FDIRM_FLEX;
1851 hw_dbg(hw, " Error on flexible byte mask\n");
1852 return IXGBE_ERR_CONFIG;
1855 /* Now mask VM pool and destination IPv6 - bits 5 and 2 */
1856 IXGBE_WRITE_REG(hw, IXGBE_FDIRM, fdirm);
1858 /* store the TCP/UDP port masks, bit reversed from port layout */
1859 fdirtcpm = ixgbe_get_fdirtcpm_82599(input_mask);
1861 /* write both the same so that UDP and TCP use the same mask */
1862 IXGBE_WRITE_REG(hw, IXGBE_FDIRTCPM, ~fdirtcpm);
1863 IXGBE_WRITE_REG(hw, IXGBE_FDIRUDPM, ~fdirtcpm);
1865 /* store source and destination IP masks (big-enian) */
1866 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIP4M,
1867 ~input_mask->formatted.src_ip[0]);
1868 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRDIP4M,
1869 ~input_mask->formatted.dst_ip[0]);
1874 s32 ixgbe_fdir_write_perfect_filter_82599(struct ixgbe_hw *hw,
1875 union ixgbe_atr_input *input,
1876 u16 soft_id, u8 queue)
1878 u32 fdirport, fdirvlan, fdirhash, fdircmd;
1880 /* currently IPv6 is not supported, must be programmed with 0 */
1881 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(0),
1882 input->formatted.src_ip[0]);
1883 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(1),
1884 input->formatted.src_ip[1]);
1885 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(2),
1886 input->formatted.src_ip[2]);
1888 /* record the source address (big-endian) */
1889 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPSA, input->formatted.src_ip[0]);
1891 /* record the first 32 bits of the destination address (big-endian) */
1892 IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPDA, input->formatted.dst_ip[0]);
1894 /* record source and destination port (little-endian)*/
1895 fdirport = ntohs(input->formatted.dst_port);
1896 fdirport <<= IXGBE_FDIRPORT_DESTINATION_SHIFT;
1897 fdirport |= ntohs(input->formatted.src_port);
1898 IXGBE_WRITE_REG(hw, IXGBE_FDIRPORT, fdirport);
1900 /* record vlan (little-endian) and flex_bytes(big-endian) */
1901 fdirvlan = IXGBE_STORE_AS_BE16(input->formatted.flex_bytes);
1902 fdirvlan <<= IXGBE_FDIRVLAN_FLEX_SHIFT;
1903 fdirvlan |= ntohs(input->formatted.vlan_id);
1904 IXGBE_WRITE_REG(hw, IXGBE_FDIRVLAN, fdirvlan);
1906 /* configure FDIRHASH register */
1907 fdirhash = input->formatted.bkt_hash;
1908 fdirhash |= soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT;
1909 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
1912 * flush all previous writes to make certain registers are
1913 * programmed prior to issuing the command
1915 IXGBE_WRITE_FLUSH(hw);
1917 /* configure FDIRCMD register */
1918 fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE |
1919 IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
1920 if (queue == IXGBE_FDIR_DROP_QUEUE)
1921 fdircmd |= IXGBE_FDIRCMD_DROP;
1922 fdircmd |= input->formatted.flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
1923 fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
1924 fdircmd |= (u32)input->formatted.vm_pool << IXGBE_FDIRCMD_VT_POOL_SHIFT;
1926 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, fdircmd);
1931 s32 ixgbe_fdir_erase_perfect_filter_82599(struct ixgbe_hw *hw,
1932 union ixgbe_atr_input *input,
1940 /* configure FDIRHASH register */
1941 fdirhash = input->formatted.bkt_hash;
1942 fdirhash |= soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT;
1943 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
1945 /* flush hash to HW */
1946 IXGBE_WRITE_FLUSH(hw);
1948 /* Query if filter is present */
1949 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, IXGBE_FDIRCMD_CMD_QUERY_REM_FILT);
1951 for (retry_count = 10; retry_count; retry_count--) {
1952 /* allow 10us for query to process */
1954 /* verify query completed successfully */
1955 fdircmd = IXGBE_READ_REG(hw, IXGBE_FDIRCMD);
1956 if (!(fdircmd & IXGBE_FDIRCMD_CMD_MASK))
1961 err = IXGBE_ERR_FDIR_REINIT_FAILED;
1963 /* if filter exists in hardware then remove it */
1964 if (fdircmd & IXGBE_FDIRCMD_FILTER_VALID) {
1965 IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
1966 IXGBE_WRITE_FLUSH(hw);
1967 IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
1968 IXGBE_FDIRCMD_CMD_REMOVE_FLOW);
1975 * ixgbe_read_analog_reg8_82599 - Reads 8 bit Omer analog register
1976 * @hw: pointer to hardware structure
1977 * @reg: analog register to read
1980 * Performs read operation to Omer analog register specified.
1982 static s32 ixgbe_read_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 *val)
1986 IXGBE_WRITE_REG(hw, IXGBE_CORECTL, IXGBE_CORECTL_WRITE_CMD |
1988 IXGBE_WRITE_FLUSH(hw);
1990 core_ctl = IXGBE_READ_REG(hw, IXGBE_CORECTL);
1991 *val = (u8)core_ctl;
1997 * ixgbe_write_analog_reg8_82599 - Writes 8 bit Omer analog register
1998 * @hw: pointer to hardware structure
1999 * @reg: atlas register to write
2000 * @val: value to write
2002 * Performs write operation to Omer analog register specified.
2004 static s32 ixgbe_write_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 val)
2008 core_ctl = (reg << 8) | val;
2009 IXGBE_WRITE_REG(hw, IXGBE_CORECTL, core_ctl);
2010 IXGBE_WRITE_FLUSH(hw);
2017 * ixgbe_start_hw_82599 - Prepare hardware for Tx/Rx
2018 * @hw: pointer to hardware structure
2020 * Starts the hardware using the generic start_hw function
2021 * and the generation start_hw function.
2022 * Then performs revision-specific operations, if any.
2024 static s32 ixgbe_start_hw_82599(struct ixgbe_hw *hw)
2028 ret_val = ixgbe_start_hw_generic(hw);
2032 ret_val = ixgbe_start_hw_gen2(hw);
2036 /* We need to run link autotry after the driver loads */
2037 hw->mac.autotry_restart = true;
2040 ret_val = ixgbe_verify_fw_version_82599(hw);
2046 * ixgbe_identify_phy_82599 - Get physical layer module
2047 * @hw: pointer to hardware structure
2049 * Determines the physical layer module found on the current adapter.
2050 * If PHY already detected, maintains current PHY type in hw struct,
2051 * otherwise executes the PHY detection routine.
2053 static s32 ixgbe_identify_phy_82599(struct ixgbe_hw *hw)
2055 s32 status = IXGBE_ERR_PHY_ADDR_INVALID;
2057 /* Detect PHY if not unknown - returns success if already detected. */
2058 status = ixgbe_identify_phy_generic(hw);
2060 /* 82599 10GBASE-T requires an external PHY */
2061 if (hw->mac.ops.get_media_type(hw) == ixgbe_media_type_copper)
2064 status = ixgbe_identify_module_generic(hw);
2067 /* Set PHY type none if no PHY detected */
2068 if (hw->phy.type == ixgbe_phy_unknown) {
2069 hw->phy.type = ixgbe_phy_none;
2073 /* Return error if SFP module has been detected but is not supported */
2074 if (hw->phy.type == ixgbe_phy_sfp_unsupported)
2075 status = IXGBE_ERR_SFP_NOT_SUPPORTED;
2082 * ixgbe_get_supported_physical_layer_82599 - Returns physical layer type
2083 * @hw: pointer to hardware structure
2085 * Determines physical layer capabilities of the current configuration.
2087 static u32 ixgbe_get_supported_physical_layer_82599(struct ixgbe_hw *hw)
2089 u32 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
2090 u32 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
2091 u32 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
2092 u32 pma_pmd_10g_serial = autoc2 & IXGBE_AUTOC2_10G_SERIAL_PMA_PMD_MASK;
2093 u32 pma_pmd_10g_parallel = autoc & IXGBE_AUTOC_10G_PMA_PMD_MASK;
2094 u32 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;
2095 u16 ext_ability = 0;
2096 u8 comp_codes_10g = 0;
2097 u8 comp_codes_1g = 0;
2099 hw->phy.ops.identify(hw);
2101 switch (hw->phy.type) {
2103 case ixgbe_phy_cu_unknown:
2104 hw->phy.ops.read_reg(hw, MDIO_PMA_EXTABLE, MDIO_MMD_PMAPMD,
2106 if (ext_ability & MDIO_PMA_EXTABLE_10GBT)
2107 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_T;
2108 if (ext_ability & MDIO_PMA_EXTABLE_1000BT)
2109 physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_T;
2110 if (ext_ability & MDIO_PMA_EXTABLE_100BTX)
2111 physical_layer |= IXGBE_PHYSICAL_LAYER_100BASE_TX;
2117 switch (autoc & IXGBE_AUTOC_LMS_MASK) {
2118 case IXGBE_AUTOC_LMS_1G_AN:
2119 case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
2120 if (pma_pmd_1g == IXGBE_AUTOC_1G_KX_BX) {
2121 physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_KX |
2122 IXGBE_PHYSICAL_LAYER_1000BASE_BX;
2125 /* SFI mode so read SFP module */
2128 case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
2129 if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_CX4)
2130 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_CX4;
2131 else if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_KX4)
2132 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
2133 else if (pma_pmd_10g_parallel == IXGBE_AUTOC_10G_XAUI)
2134 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_XAUI;
2137 case IXGBE_AUTOC_LMS_10G_SERIAL:
2138 if (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_KR) {
2139 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KR;
2141 } else if (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI)
2144 case IXGBE_AUTOC_LMS_KX4_KX_KR:
2145 case IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN:
2146 if (autoc & IXGBE_AUTOC_KX_SUPP)
2147 physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_KX;
2148 if (autoc & IXGBE_AUTOC_KX4_SUPP)
2149 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
2150 if (autoc & IXGBE_AUTOC_KR_SUPP)
2151 physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KR;
2160 /* SFP check must be done last since DA modules are sometimes used to
2161 * test KR mode - we need to id KR mode correctly before SFP module.
2162 * Call identify_sfp because the pluggable module may have changed */
2163 hw->phy.ops.identify_sfp(hw);
2164 if (hw->phy.sfp_type == ixgbe_sfp_type_not_present)
2167 switch (hw->phy.type) {
2168 case ixgbe_phy_sfp_passive_tyco:
2169 case ixgbe_phy_sfp_passive_unknown:
2170 case ixgbe_phy_qsfp_passive_unknown:
2171 physical_layer = IXGBE_PHYSICAL_LAYER_SFP_PLUS_CU;
2173 case ixgbe_phy_sfp_ftl_active:
2174 case ixgbe_phy_sfp_active_unknown:
2175 case ixgbe_phy_qsfp_active_unknown:
2176 physical_layer = IXGBE_PHYSICAL_LAYER_SFP_ACTIVE_DA;
2178 case ixgbe_phy_sfp_avago:
2179 case ixgbe_phy_sfp_ftl:
2180 case ixgbe_phy_sfp_intel:
2181 case ixgbe_phy_sfp_unknown:
2182 hw->phy.ops.read_i2c_eeprom(hw,
2183 IXGBE_SFF_1GBE_COMP_CODES, &comp_codes_1g);
2184 hw->phy.ops.read_i2c_eeprom(hw,
2185 IXGBE_SFF_10GBE_COMP_CODES, &comp_codes_10g);
2186 if (comp_codes_10g & IXGBE_SFF_10GBASESR_CAPABLE)
2187 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_SR;
2188 else if (comp_codes_10g & IXGBE_SFF_10GBASELR_CAPABLE)
2189 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_LR;
2190 else if (comp_codes_1g & IXGBE_SFF_1GBASET_CAPABLE)
2191 physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_T;
2193 case ixgbe_phy_qsfp_intel:
2194 case ixgbe_phy_qsfp_unknown:
2195 hw->phy.ops.read_i2c_eeprom(hw,
2196 IXGBE_SFF_QSFP_10GBE_COMP, &comp_codes_10g);
2197 if (comp_codes_10g & IXGBE_SFF_10GBASESR_CAPABLE)
2198 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_SR;
2199 else if (comp_codes_10g & IXGBE_SFF_10GBASELR_CAPABLE)
2200 physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_LR;
2207 return physical_layer;
2211 * ixgbe_enable_rx_dma_82599 - Enable the Rx DMA unit on 82599
2212 * @hw: pointer to hardware structure
2213 * @regval: register value to write to RXCTRL
2215 * Enables the Rx DMA unit for 82599
2217 static s32 ixgbe_enable_rx_dma_82599(struct ixgbe_hw *hw, u32 regval)
2220 * Workaround for 82599 silicon errata when enabling the Rx datapath.
2221 * If traffic is incoming before we enable the Rx unit, it could hang
2222 * the Rx DMA unit. Therefore, make sure the security engine is
2223 * completely disabled prior to enabling the Rx unit.
2225 hw->mac.ops.disable_rx_buff(hw);
2227 IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, regval);
2229 hw->mac.ops.enable_rx_buff(hw);
2235 * ixgbe_verify_fw_version_82599 - verify fw version for 82599
2236 * @hw: pointer to hardware structure
2238 * Verifies that installed the firmware version is 0.6 or higher
2239 * for SFI devices. All 82599 SFI devices should have version 0.6 or higher.
2241 * Returns IXGBE_ERR_EEPROM_VERSION if the FW is not present or
2242 * if the FW version is not supported.
2244 static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw)
2246 s32 status = IXGBE_ERR_EEPROM_VERSION;
2247 u16 fw_offset, fw_ptp_cfg_offset;
2251 /* firmware check is only necessary for SFI devices */
2252 if (hw->phy.media_type != ixgbe_media_type_fiber) {
2254 goto fw_version_out;
2257 /* get the offset to the Firmware Module block */
2258 offset = IXGBE_FW_PTR;
2259 if (hw->eeprom.ops.read(hw, offset, &fw_offset))
2260 goto fw_version_err;
2262 if ((fw_offset == 0) || (fw_offset == 0xFFFF))
2263 goto fw_version_out;
2265 /* get the offset to the Pass Through Patch Configuration block */
2266 offset = fw_offset + IXGBE_FW_PASSTHROUGH_PATCH_CONFIG_PTR;
2267 if (hw->eeprom.ops.read(hw, offset, &fw_ptp_cfg_offset))
2268 goto fw_version_err;
2270 if ((fw_ptp_cfg_offset == 0) || (fw_ptp_cfg_offset == 0xFFFF))
2271 goto fw_version_out;
2273 /* get the firmware version */
2274 offset = fw_ptp_cfg_offset + IXGBE_FW_PATCH_VERSION_4;
2275 if (hw->eeprom.ops.read(hw, offset, &fw_version))
2276 goto fw_version_err;
2278 if (fw_version > 0x5)
2285 hw_err(hw, "eeprom read at offset %d failed\n", offset);
2286 return IXGBE_ERR_EEPROM_VERSION;
2290 * ixgbe_verify_lesm_fw_enabled_82599 - Checks LESM FW module state.
2291 * @hw: pointer to hardware structure
2293 * Returns true if the LESM FW module is present and enabled. Otherwise
2294 * returns false. Smart Speed must be disabled if LESM FW module is enabled.
2296 static bool ixgbe_verify_lesm_fw_enabled_82599(struct ixgbe_hw *hw)
2298 bool lesm_enabled = false;
2299 u16 fw_offset, fw_lesm_param_offset, fw_lesm_state;
2302 /* get the offset to the Firmware Module block */
2303 status = hw->eeprom.ops.read(hw, IXGBE_FW_PTR, &fw_offset);
2305 if ((status != 0) ||
2306 (fw_offset == 0) || (fw_offset == 0xFFFF))
2309 /* get the offset to the LESM Parameters block */
2310 status = hw->eeprom.ops.read(hw, (fw_offset +
2311 IXGBE_FW_LESM_PARAMETERS_PTR),
2312 &fw_lesm_param_offset);
2314 if ((status != 0) ||
2315 (fw_lesm_param_offset == 0) || (fw_lesm_param_offset == 0xFFFF))
2318 /* get the lesm state word */
2319 status = hw->eeprom.ops.read(hw, (fw_lesm_param_offset +
2320 IXGBE_FW_LESM_STATE_1),
2323 if ((status == 0) &&
2324 (fw_lesm_state & IXGBE_FW_LESM_STATE_ENABLED))
2325 lesm_enabled = true;
2328 return lesm_enabled;
2332 * ixgbe_read_eeprom_buffer_82599 - Read EEPROM word(s) using
2333 * fastest available method
2335 * @hw: pointer to hardware structure
2336 * @offset: offset of word in EEPROM to read
2337 * @words: number of words
2338 * @data: word(s) read from the EEPROM
2340 * Retrieves 16 bit word(s) read from EEPROM
2342 static s32 ixgbe_read_eeprom_buffer_82599(struct ixgbe_hw *hw, u16 offset,
2343 u16 words, u16 *data)
2345 struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
2346 s32 ret_val = IXGBE_ERR_CONFIG;
2349 * If EEPROM is detected and can be addressed using 14 bits,
2350 * use EERD otherwise use bit bang
2352 if ((eeprom->type == ixgbe_eeprom_spi) &&
2353 (offset + (words - 1) <= IXGBE_EERD_MAX_ADDR))
2354 ret_val = ixgbe_read_eerd_buffer_generic(hw, offset, words,
2357 ret_val = ixgbe_read_eeprom_buffer_bit_bang_generic(hw, offset,
2365 * ixgbe_read_eeprom_82599 - Read EEPROM word using
2366 * fastest available method
2368 * @hw: pointer to hardware structure
2369 * @offset: offset of word in the EEPROM to read
2370 * @data: word read from the EEPROM
2372 * Reads a 16 bit word from the EEPROM
2374 static s32 ixgbe_read_eeprom_82599(struct ixgbe_hw *hw,
2375 u16 offset, u16 *data)
2377 struct ixgbe_eeprom_info *eeprom = &hw->eeprom;
2378 s32 ret_val = IXGBE_ERR_CONFIG;
2381 * If EEPROM is detected and can be addressed using 14 bits,
2382 * use EERD otherwise use bit bang
2384 if ((eeprom->type == ixgbe_eeprom_spi) &&
2385 (offset <= IXGBE_EERD_MAX_ADDR))
2386 ret_val = ixgbe_read_eerd_generic(hw, offset, data);
2388 ret_val = ixgbe_read_eeprom_bit_bang_generic(hw, offset, data);
2394 * ixgbe_reset_pipeline_82599 - perform pipeline reset
2396 * @hw: pointer to hardware structure
2398 * Reset pipeline by asserting Restart_AN together with LMS change to ensure
2399 * full pipeline reset. Note - We must hold the SW/FW semaphore before writing
2400 * to AUTOC, so this function assumes the semaphore is held.
2402 static s32 ixgbe_reset_pipeline_82599(struct ixgbe_hw *hw)
2406 u32 i, autoc_reg, autoc2_reg;
2408 /* Enable link if disabled in NVM */
2409 autoc2_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
2410 if (autoc2_reg & IXGBE_AUTOC2_LINK_DISABLE_MASK) {
2411 autoc2_reg &= ~IXGBE_AUTOC2_LINK_DISABLE_MASK;
2412 IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2_reg);
2413 IXGBE_WRITE_FLUSH(hw);
2416 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
2417 autoc_reg |= IXGBE_AUTOC_AN_RESTART;
2419 /* Write AUTOC register with toggled LMS[2] bit and Restart_AN */
2420 IXGBE_WRITE_REG(hw, IXGBE_AUTOC,
2421 autoc_reg ^ (0x4 << IXGBE_AUTOC_LMS_SHIFT));
2423 /* Wait for AN to leave state 0 */
2424 for (i = 0; i < 10; i++) {
2425 usleep_range(4000, 8000);
2426 anlp1_reg = IXGBE_READ_REG(hw, IXGBE_ANLP1);
2427 if (anlp1_reg & IXGBE_ANLP1_AN_STATE_MASK)
2431 if (!(anlp1_reg & IXGBE_ANLP1_AN_STATE_MASK)) {
2432 hw_dbg(hw, "auto negotiation not completed\n");
2433 ret_val = IXGBE_ERR_RESET_FAILED;
2434 goto reset_pipeline_out;
2440 /* Write AUTOC register with original LMS field and Restart_AN */
2441 IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
2442 IXGBE_WRITE_FLUSH(hw);
2448 * ixgbe_read_i2c_byte_82599 - Reads 8 bit word over I2C
2449 * @hw: pointer to hardware structure
2450 * @byte_offset: byte offset to read
2453 * Performs byte read operation to SFP module's EEPROM over I2C interface at
2454 * a specified device address.
2456 static s32 ixgbe_read_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
2457 u8 dev_addr, u8 *data)
2463 if (hw->phy.qsfp_shared_i2c_bus == true) {
2464 /* Acquire I2C bus ownership. */
2465 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2466 esdp |= IXGBE_ESDP_SDP0;
2467 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2468 IXGBE_WRITE_FLUSH(hw);
2471 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2472 if (esdp & IXGBE_ESDP_SDP1)
2475 usleep_range(5000, 10000);
2480 hw_dbg(hw, "Driver can't access resource, acquiring I2C bus timeout.\n");
2481 status = IXGBE_ERR_I2C;
2482 goto release_i2c_access;
2486 status = ixgbe_read_i2c_byte_generic(hw, byte_offset, dev_addr, data);
2489 if (hw->phy.qsfp_shared_i2c_bus == true) {
2490 /* Release I2C bus ownership. */
2491 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2492 esdp &= ~IXGBE_ESDP_SDP0;
2493 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2494 IXGBE_WRITE_FLUSH(hw);
2501 * ixgbe_write_i2c_byte_82599 - Writes 8 bit word over I2C
2502 * @hw: pointer to hardware structure
2503 * @byte_offset: byte offset to write
2504 * @data: value to write
2506 * Performs byte write operation to SFP module's EEPROM over I2C interface at
2507 * a specified device address.
2509 static s32 ixgbe_write_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
2510 u8 dev_addr, u8 data)
2516 if (hw->phy.qsfp_shared_i2c_bus == true) {
2517 /* Acquire I2C bus ownership. */
2518 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2519 esdp |= IXGBE_ESDP_SDP0;
2520 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2521 IXGBE_WRITE_FLUSH(hw);
2524 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2525 if (esdp & IXGBE_ESDP_SDP1)
2528 usleep_range(5000, 10000);
2533 hw_dbg(hw, "Driver can't access resource, acquiring I2C bus timeout.\n");
2534 status = IXGBE_ERR_I2C;
2535 goto release_i2c_access;
2539 status = ixgbe_write_i2c_byte_generic(hw, byte_offset, dev_addr, data);
2542 if (hw->phy.qsfp_shared_i2c_bus == true) {
2543 /* Release I2C bus ownership. */
2544 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
2545 esdp &= ~IXGBE_ESDP_SDP0;
2546 IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
2547 IXGBE_WRITE_FLUSH(hw);
2553 static struct ixgbe_mac_operations mac_ops_82599 = {
2554 .init_hw = &ixgbe_init_hw_generic,
2555 .reset_hw = &ixgbe_reset_hw_82599,
2556 .start_hw = &ixgbe_start_hw_82599,
2557 .clear_hw_cntrs = &ixgbe_clear_hw_cntrs_generic,
2558 .get_media_type = &ixgbe_get_media_type_82599,
2559 .get_supported_physical_layer = &ixgbe_get_supported_physical_layer_82599,
2560 .enable_rx_dma = &ixgbe_enable_rx_dma_82599,
2561 .disable_rx_buff = &ixgbe_disable_rx_buff_generic,
2562 .enable_rx_buff = &ixgbe_enable_rx_buff_generic,
2563 .get_mac_addr = &ixgbe_get_mac_addr_generic,
2564 .get_san_mac_addr = &ixgbe_get_san_mac_addr_generic,
2565 .get_device_caps = &ixgbe_get_device_caps_generic,
2566 .get_wwn_prefix = &ixgbe_get_wwn_prefix_generic,
2567 .stop_adapter = &ixgbe_stop_adapter_generic,
2568 .get_bus_info = &ixgbe_get_bus_info_generic,
2569 .set_lan_id = &ixgbe_set_lan_id_multi_port_pcie,
2570 .read_analog_reg8 = &ixgbe_read_analog_reg8_82599,
2571 .write_analog_reg8 = &ixgbe_write_analog_reg8_82599,
2572 .stop_link_on_d3 = &ixgbe_stop_mac_link_on_d3_82599,
2573 .setup_link = &ixgbe_setup_mac_link_82599,
2574 .set_rxpba = &ixgbe_set_rxpba_generic,
2575 .check_link = &ixgbe_check_mac_link_generic,
2576 .get_link_capabilities = &ixgbe_get_link_capabilities_82599,
2577 .led_on = &ixgbe_led_on_generic,
2578 .led_off = &ixgbe_led_off_generic,
2579 .blink_led_start = &ixgbe_blink_led_start_generic,
2580 .blink_led_stop = &ixgbe_blink_led_stop_generic,
2581 .set_rar = &ixgbe_set_rar_generic,
2582 .clear_rar = &ixgbe_clear_rar_generic,
2583 .set_vmdq = &ixgbe_set_vmdq_generic,
2584 .set_vmdq_san_mac = &ixgbe_set_vmdq_san_mac_generic,
2585 .clear_vmdq = &ixgbe_clear_vmdq_generic,
2586 .init_rx_addrs = &ixgbe_init_rx_addrs_generic,
2587 .update_mc_addr_list = &ixgbe_update_mc_addr_list_generic,
2588 .enable_mc = &ixgbe_enable_mc_generic,
2589 .disable_mc = &ixgbe_disable_mc_generic,
2590 .clear_vfta = &ixgbe_clear_vfta_generic,
2591 .set_vfta = &ixgbe_set_vfta_generic,
2592 .fc_enable = &ixgbe_fc_enable_generic,
2593 .set_fw_drv_ver = &ixgbe_set_fw_drv_ver_generic,
2594 .init_uta_tables = &ixgbe_init_uta_tables_generic,
2595 .setup_sfp = &ixgbe_setup_sfp_modules_82599,
2596 .set_mac_anti_spoofing = &ixgbe_set_mac_anti_spoofing,
2597 .set_vlan_anti_spoofing = &ixgbe_set_vlan_anti_spoofing,
2598 .acquire_swfw_sync = &ixgbe_acquire_swfw_sync,
2599 .release_swfw_sync = &ixgbe_release_swfw_sync,
2600 .get_thermal_sensor_data = &ixgbe_get_thermal_sensor_data_generic,
2601 .init_thermal_sensor_thresh = &ixgbe_init_thermal_sensor_thresh_generic,
2602 .mng_fw_enabled = &ixgbe_mng_enabled,
2603 .prot_autoc_read = &prot_autoc_read_82599,
2604 .prot_autoc_write = &prot_autoc_write_82599,
2607 static struct ixgbe_eeprom_operations eeprom_ops_82599 = {
2608 .init_params = &ixgbe_init_eeprom_params_generic,
2609 .read = &ixgbe_read_eeprom_82599,
2610 .read_buffer = &ixgbe_read_eeprom_buffer_82599,
2611 .write = &ixgbe_write_eeprom_generic,
2612 .write_buffer = &ixgbe_write_eeprom_buffer_bit_bang_generic,
2613 .calc_checksum = &ixgbe_calc_eeprom_checksum_generic,
2614 .validate_checksum = &ixgbe_validate_eeprom_checksum_generic,
2615 .update_checksum = &ixgbe_update_eeprom_checksum_generic,
2618 static struct ixgbe_phy_operations phy_ops_82599 = {
2619 .identify = &ixgbe_identify_phy_82599,
2620 .identify_sfp = &ixgbe_identify_module_generic,
2621 .init = &ixgbe_init_phy_ops_82599,
2622 .reset = &ixgbe_reset_phy_generic,
2623 .read_reg = &ixgbe_read_phy_reg_generic,
2624 .write_reg = &ixgbe_write_phy_reg_generic,
2625 .setup_link = &ixgbe_setup_phy_link_generic,
2626 .setup_link_speed = &ixgbe_setup_phy_link_speed_generic,
2627 .read_i2c_byte = &ixgbe_read_i2c_byte_generic,
2628 .write_i2c_byte = &ixgbe_write_i2c_byte_generic,
2629 .read_i2c_sff8472 = &ixgbe_read_i2c_sff8472_generic,
2630 .read_i2c_eeprom = &ixgbe_read_i2c_eeprom_generic,
2631 .write_i2c_eeprom = &ixgbe_write_i2c_eeprom_generic,
2632 .check_overtemp = &ixgbe_tn_check_overtemp,
2635 struct ixgbe_info ixgbe_82599_info = {
2636 .mac = ixgbe_mac_82599EB,
2637 .get_invariants = &ixgbe_get_invariants_82599,
2638 .mac_ops = &mac_ops_82599,
2639 .eeprom_ops = &eeprom_ops_82599,
2640 .phy_ops = &phy_ops_82599,
2641 .mbx_ops = &mbx_ops_generic,